diff --git a/Documentation/README.html b/Documentation/README.html index baf534cf50d..8751b6b37c0 100644 --- a/Documentation/README.html +++ b/Documentation/README.html @@ -8,7 +8,7 @@

NuttX README Files

-

Last Updated: November 1, 2016

+

Last Updated: November 4, 2016

@@ -150,6 +150,8 @@ nuttx/ | | `- README.txt | |- mirtoo/ | | `- README.txt + | |- misoc/ + | | `- README.txt | |- moteino-mega/ | | `- README.txt | |- mx1ads/ diff --git a/README.txt b/README.txt index 6203ab4cd10..d2a9a7b9fe1 100644 --- a/README.txt +++ b/README.txt @@ -1366,6 +1366,8 @@ nuttx/ | | `- README.txt | |- mirtoo/ | | `- README.txt + | |- misoc/ + | | `- README.txt | |- moteino-mega/ | | `- README.txt | |- mx1ads/ diff --git a/arch/Kconfig b/arch/Kconfig index 32ecb064106..0125994830f 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -39,6 +39,13 @@ config ARCH_MIPS ---help--- MIPS architectures (PIC32) +config ARCH_MISOC + bool "MISOC" + select ARCH_HAVE_INTERRUPTSTACK + select ARCH_HAVE_CUSTOMOPT + ---help--- + MISOC + config ARCH_RGMP bool "RGMP" ---help--- @@ -99,6 +106,7 @@ config ARCH default "avr" if ARCH_AVR default "hc" if ARCH_HC default "mips" if ARCH_MIPS + default "misoc" if ARCH_MISOC default "rgmp" if ARCH_RGMP default "renesas" if ARCH_RENESAS default "risc-v" if ARCH_RISCV @@ -112,6 +120,7 @@ source arch/arm/Kconfig source arch/avr/Kconfig source arch/hc/Kconfig source arch/mips/Kconfig +source arch/misoc/Kconfig source arch/rgmp/Kconfig source arch/renesas/Kconfig source arch/risc-v/Kconfig diff --git a/arch/arm/src/armv7-r/Kconfig b/arch/arm/src/armv7-r/Kconfig index e4b50492aa9..1f46770cb6a 100644 --- a/arch/arm/src/armv7-r/Kconfig +++ b/arch/arm/src/armv7-r/Kconfig @@ -185,7 +185,7 @@ config ARMV7R_TOOLCHAIN_GNU_OABI ---help--- This option should work for any GNU toolchain configured for arm-elf-. -endchoice # ARMV7R_HAVE_L2CC +endchoice # Toolchain Selection config ARMV7R_OABI_TOOLCHAIN bool "OABI (vs EABI)" diff --git a/arch/misoc/Kconfig b/arch/misoc/Kconfig new file mode 100644 index 00000000000..615b741c52b --- /dev/null +++ b/arch/misoc/Kconfig @@ -0,0 +1,72 @@ +# +# For a description of the syntax of this configuration file, +# see the file kconfig-language.txt in the NuttX tools repository. +# + +if ARCH_MISOC + +choice + prompt "Misoc Chip Selection" + default ARCH_CHIP_LM32 + +config ARCH_CHIP_LM32 + bool "LM32" + select MISOC_HAVE_UART1 + ---help--- + LM32 Chip Selected + +config ARCH_CHIP_MOR1K + bool "MOR1K" + ---help--- + MOR1K Chip Selected + +endchoice # Misoc Chip Selection + +config ARCH_CHIP + string + default "lm32" if ARCH_CHIP_LM32 + default "mor1k" if ARCH_CHIP_MOR1K + +menu "MISOC Peripheral Support" + +# These "hidden" settings determine is a peripheral option is available for the +# selection MCU + +config MISOC_HAVE_UART1 + bool + default n + select UART1_SERIALDRIVER + +config MISOC_UART1 + bool "UART1" + default n + select ARCH_HAVE_UART1 + select MISOC_UART + +endmenu # MISOC Peripheral Support + +config MISOC_UART + bool + +config MISOC_UART_RX_BUF_SIZE + int "UART RX Bufer size" + default 64 + depends on MISOC_UART + ---help--- + Size of RX buffers for MISOC UARTs + +config MISOC_UART_TX_BUF_SIZE + int "UART TX Bufer size" + default 64 + depends on MISOC_UART + ---help--- + Size of TX buffers for MISOC UARTs + +if ARCH_CHIP_LM32 +source arch/misoc/src/lm32/Kconfig +endif +if ARCH_CHIP_MOR1K +#source arch/misoc/src/mor1k/Kconfig +endif + +endif # ARCH_MISOC diff --git a/arch/misoc/include/.gitignore b/arch/misoc/include/.gitignore new file mode 100644 index 00000000000..e6460c4a678 --- /dev/null +++ b/arch/misoc/include/.gitignore @@ -0,0 +1,3 @@ +/board +/chip + diff --git a/arch/misoc/include/arch.h b/arch/misoc/include/arch.h new file mode 100644 index 00000000000..e69de29bb2d diff --git a/arch/misoc/include/inttypes.h b/arch/misoc/include/inttypes.h new file mode 100644 index 00000000000..16c4046f7a7 --- /dev/null +++ b/arch/misoc/include/inttypes.h @@ -0,0 +1,245 @@ +/**************************************************************************** + * arch/misoc/include/inttypes.h + * + * Copyright (C) 2016 Omni Hoverboards Inc. All rights reserved. + * Author: Paul Alexander Patience + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __ARCH_MISOC_INCLUDE_INTTYPES_H +#define __ARCH_MISOC_INCLUDE_INTTYPES_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#define PRId8 "d" +#define PRId16 "d" +#define PRId32 "d" +#define PRId64 "lld" + +#define PRIdLEAST8 "d" +#define PRIdLEAST16 "d" +#define PRIdLEAST32 "d" +#define PRIdLEAST64 "lld" + +#define PRIdFAST8 "d" +#define PRIdFAST16 "d" +#define PRIdFAST32 "d" +#define PRIdFAST64 "lld" + +#define PRIdMAX "lld" +#define PRIdPTR "d" + +#define PRIi8 "i" +#define PRIi16 "i" +#define PRIi32 "i" +#define PRIi64 "lli" + +#define PRIiLEAST8 "i" +#define PRIiLEAST16 "i" +#define PRIiLEAST32 "i" +#define PRIiLEAST64 "lli" + +#define PRIiFAST8 "i" +#define PRIiFAST16 "i" +#define PRIiFAST32 "i" +#define PRIiFAST64 "lli" + +#define PRIiMAX "lli" +#define PRIiPTR "i" + +#define PRIo8 "o" +#define PRIo16 "o" +#define PRIo32 "o" +#define PRIo64 "llo" + +#define PRIoLEAST8 "o" +#define PRIoLEAST16 "o" +#define PRIoLEAST32 "o" +#define PRIoLEAST64 "llo" + +#define PRIoFAST8 "o" +#define PRIoFAST16 "o" +#define PRIoFAST32 "o" +#define PRIoFAST64 "llo" + +#define PRIoMAX "llo" +#define PRIoPTR "o" + +#define PRIu8 "u" +#define PRIu16 "u" +#define PRIu32 "u" +#define PRIu64 "llu" + +#define PRIuLEAST8 "u" +#define PRIuLEAST16 "u" +#define PRIuLEAST32 "u" +#define PRIuLEAST64 "llu" + +#define PRIuFAST8 "u" +#define PRIuFAST16 "u" +#define PRIuFAST32 "u" +#define PRIuFAST64 "llu" + +#define PRIuMAX "llu" +#define PRIuPTR "u" + +#define PRIx8 "x" +#define PRIx16 "x" +#define PRIx32 "x" +#define PRIx64 "llx" + +#define PRIxLEAST8 "x" +#define PRIxLEAST16 "x" +#define PRIxLEAST32 "x" +#define PRIxLEAST64 "llx" + +#define PRIxFAST8 "x" +#define PRIxFAST16 "x" +#define PRIxFAST32 "x" +#define PRIxFAST64 "llx" + +#define PRIxMAX "llx" +#define PRIxPTR "x" + +#define PRIX8 "X" +#define PRIX16 "X" +#define PRIX32 "X" +#define PRIX64 "llX" + +#define PRIXLEAST8 "X" +#define PRIXLEAST16 "X" +#define PRIXLEAST32 "X" +#define PRIXLEAST64 "llX" + +#define PRIXFAST8 "X" +#define PRIXFAST16 "X" +#define PRIXFAST32 "X" +#define PRIXFAST64 "llX" + +#define PRIXMAX "llX" +#define PRIXPTR "X" + +#define SCNd8 "hhd" +#define SCNd16 "hd" +#define SCNd32 "d" +#define SCNd64 "lld" + +#define SCNdLEAST8 "hhd" +#define SCNdLEAST16 "hd" +#define SCNdLEAST32 "d" +#define SCNdLEAST64 "lld" + +#define SCNdFAST8 "hhd" +#define SCNdFAST16 "hd" +#define SCNdFAST32 "d" +#define SCNdFAST64 "lld" + +#define SCNdMAX "lld" +#define SCNdPTR "d" + +#define SCNi8 "hhi" +#define SCNi16 "hi" +#define SCNi32 "i" +#define SCNi64 "lli" + +#define SCNiLEAST8 "hhi" +#define SCNiLEAST16 "hi" +#define SCNiLEAST32 "i" +#define SCNiLEAST64 "lli" + +#define SCNiFAST8 "hhi" +#define SCNiFAST16 "hi" +#define SCNiFAST32 "i" +#define SCNiFAST64 "lli" + +#define SCNiMAX "lli" +#define SCNiPTR "i" + +#define SCNo8 "hho" +#define SCNo16 "ho" +#define SCNo32 "o" +#define SCNo64 "llo" + +#define SCNoLEAST8 "hho" +#define SCNoLEAST16 "ho" +#define SCNoLEAST32 "o" +#define SCNoLEAST64 "llo" + +#define SCNoFAST8 "hho" +#define SCNoFAST16 "ho" +#define SCNoFAST32 "o" +#define SCNoFAST64 "llo" + +#define SCNoMAX "llo" +#define SCNoPTR "o" + +#define SCNu8 "hhu" +#define SCNu16 "hu" +#define SCNu32 "u" +#define SCNu64 "llu" + +#define SCNuLEAST8 "hhu" +#define SCNuLEAST16 "hu" +#define SCNuLEAST32 "u" +#define SCNuLEAST64 "llu" + +#define SCNuFAST8 "hhu" +#define SCNuFAST16 "hu" +#define SCNuFAST32 "u" +#define SCNuFAST64 "llu" + +#define SCNuMAX "llu" +#define SCNuPTR "u" + +#define SCNx8 "hhx" +#define SCNx16 "hx" +#define SCNx32 "x" +#define SCNx64 "llx" + +#define SCNxLEAST8 "hhx" +#define SCNxLEAST16 "hx" +#define SCNxLEAST32 "x" +#define SCNxLEAST64 "llx" + +#define SCNxFAST8 "hhx" +#define SCNxFAST16 "hx" +#define SCNxFAST32 "x" +#define SCNxFAST64 "llx" + +#define SCNxMAX "llx" +#define SCNxPTR "x" + +#endif /* __ARCH_MISOC_INCLUDE_INTTYPES_H */ diff --git a/arch/misoc/include/irq.h b/arch/misoc/include/irq.h new file mode 100644 index 00000000000..a21987b00a4 --- /dev/null +++ b/arch/misoc/include/irq.h @@ -0,0 +1,84 @@ +/**************************************************************************** + * arch/misoc/include/irq.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/* This file should never be included directed but, rather, only indirectly + * through nuttx/irq.h + */ + +#ifndef __ARCH_MISOC_INCLUDE_IRQ_H +#define __ARCH_MISOC_INCLUDE_IRQ_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include + +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* 32 True interrupts plus the sofware interrupt */ + +#define MISOC_NINTERRUPTS 32 +#define MISOC_IRQ_SWINT 32 +#define NR_IRQS 33 + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#ifndef __ASSEMBLY__ +#ifdef __cplusplus +#define EXTERN extern "C" +extern "C" +{ +#else +#define EXTERN extern +#endif + +irqstate_t up_irq_save(void); +void up_irq_restore(irqstate_t flags); + +#undef EXTERN +#ifdef __cplusplus +} +#endif +#endif + +#endif /* __ARCH_MISOC_INCLUDE_IRQ_H */ diff --git a/arch/misoc/include/limits.h b/arch/misoc/include/limits.h new file mode 100644 index 00000000000..12dd86efb2e --- /dev/null +++ b/arch/misoc/include/limits.h @@ -0,0 +1,88 @@ +/**************************************************************************** + * arch/misoc/include/limits.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __ARCH_MISOC_INCLUDE_LIMITS_H +#define __ARCH_MISOC_INCLUDE_LIMITS_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#define CHAR_BIT 8 +#define SCHAR_MIN (-SCHAR_MAX - 1) +#define SCHAR_MAX 127 +#define UCHAR_MAX 255 + +/* These could be different on machines where char is unsigned */ + +#ifdef __CHAR_UNSIGNED__ +#define CHAR_MIN 0 +#define CHAR_MAX UCHAR_MAX +#else +#define CHAR_MIN SCHAR_MIN +#define CHAR_MAX SCHAR_MAX +#endif + +#define SHRT_MIN (-SHRT_MAX - 1) +#define SHRT_MAX 32767 +#define USHRT_MAX 65535U + +/* Integer is four bytes */ + +#define INT_MIN (-INT_MAX - 1) +#define INT_MAX 2147483647 +#define UINT_MAX 4294967295U + +/* These change on 32-bit and 64-bit platforms */ + +#define LONG_MIN (-LONG_MAX - 1) +#define LONG_MAX 2147483647L +#define ULONG_MAX 4294967295UL + +#define LLONG_MIN (-LLONG_MAX - 1) +#define LLONG_MAX 9223372036854775807LL +#define ULLONG_MAX 18446744073709551615ULL + +/* A pointer is four bytes */ + +#define PTR_MIN (-PTR_MAX - 1) +#define PTR_MAX 2147483647 +#define UPTR_MAX 4294967295U + +#endif /* __ARCH_MISOC_INCLUDE_LIMITS_H */ diff --git a/arch/misoc/include/lm32/irq.h b/arch/misoc/include/lm32/irq.h new file mode 100644 index 00000000000..782bb06ae9e --- /dev/null +++ b/arch/misoc/include/lm32/irq.h @@ -0,0 +1,199 @@ +/**************************************************************************** + * arch/misoc/include/lm32/irq.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __ARCH_MISOC_INCLUDE_LM32_IRQ_H +#define __ARCH_MISOC_INCLUDE_LM32_IRQ_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* Registers */ + +#define REG_X0_NDX 0 /* Holds the value zero */ +#define REG_X1_NDX 1 /* General-purpose/argument 0/return value 0 */ +#define REG_X2_NDX 2 /* General-purpose/argument 1/return value 1 */ +#define REG_X3_NDX 3 /* General-purpose/argument 2 */ +#define REG_X4_NDX 4 /* General-purpose/argument 3 */ +#define REG_X5_NDX 5 /* General-purpose/argument 4 */ +#define REG_X6_NDX 6 /* General-purpose/argument 5 */ +#define REG_X7_NDX 7 /* General-purpose/argument 6 */ +#define REG_X8_NDX 8 /* General-purpose/argument 7 */ +#define REG_X9_NDX 9 /* General-purpose */ +#define REG_X10_NDX 10 /* General-purpose */ +#define REG_X11_NDX 11 /* General-purpose */ +#define REG_X12_NDX 12 /* General-purpose */ +#define REG_X13_NDX 13 /* General-purpose */ +#define REG_X14_NDX 14 /* General-purpose */ +#define REG_X15_NDX 15 /* General-purpose */ +#define REG_X16_NDX 16 /* General-purpose */ +#define REG_X17_NDX 17 /* General-purpose */ +#define REG_X18_NDX 18 /* General-purpose */ +#define REG_X19_NDX 19 /* General-purpose */ +#define REG_X20_NDX 20 /* General-purpose */ +#define REG_X21_NDX 21 /* General-purpose */ +#define REG_X22_NDX 22 /* General-purpose */ +#define REG_X23_NDX 23 /* General-purpose */ +#define REG_X24_NDX 24 /* General-purpose */ +#define REG_X25_NDX 25 /* General-purpose */ +#define REG_X26_NDX 26 /* General-purpose/global pointer */ +#define REG_X27_NDX 27 /* General-purpose/frame pointer */ +#define REG_X28_NDX 28 /* Stack pointer */ +#define REG_X29_NDX 29 /* General-purpose/return address */ +#define REG_X30_NDX 30 /* Exception address */ +#define REG_X31_NDX 31 /* Breakpoint address */ +#define REG_X32_NDX 32 /* Reg IE */ + +/* Interrupt Context register */ + +#define XCPTCONTEXT_REGS 33 +#define XCPTCONTEXT_SIZE (4 * XCPTCONTEXT_REGS) + +#ifdef __ASSEMBLY__ +# define REG_X0 (4*REG_X0_NDX) +# define REG_X1 (4*REG_X1_NDX) +# define REG_X2 (4*REG_X2_NDX) +# define REG_X3 (4*REG_X3_NDX) +# define REG_X4 (4*REG_X4_NDX) +# define REG_X5 (4*REG_X5_NDX) +# define REG_X6 (4*REG_X6_NDX) +# define REG_X7 (4*REG_X7_NDX) +# define REG_X8 (4*REG_X8_NDX) +# define REG_X9 (4*REG_X9_NDX) +# define REG_X10 (4*REG_X10_NDX) +# define REG_X11 (4*REG_X11_NDX) +# define REG_X12 (4*REG_X12_NDX) +# define REG_X13 (4*REG_X13_NDX) +# define REG_X14 (4*REG_X14_NDX) +# define REG_X15 (4*REG_X15_NDX) +# define REG_X16 (4*REG_X16_NDX) +# define REG_X17 (4*REG_X17_NDX) +# define REG_X18 (4*REG_X18_NDX) +# define REG_X19 (4*REG_X19_NDX) +# define REG_X20 (4*REG_X20_NDX) +# define REG_X21 (4*REG_X21_NDX) +# define REG_X22 (4*REG_X22_NDX) +# define REG_X23 (4*REG_X23_NDX) +# define REG_X24 (4*REG_X24_NDX) +# define REG_X25 (4*REG_X25_NDX) +# define REG_X26 (4*REG_X26_NDX) +# define REG_X27 (4*REG_X27_NDX) +# define REG_X28 (4*REG_X28_NDX) +# define REG_X29 (4*REG_X29_NDX) +# define REG_X30 (4*REG_X30_NDX) +# define REG_X31 (4*REG_X31_NDX) +# define REG_INT_CTX (4*REG_X32_NDX) +#else +# define REG_X0 REG_X0_NDX +# define REG_X1 REG_X1_NDX +# define REG_X2 REG_X2_NDX +# define REG_X3 REG_X3_NDX +# define REG_X4 REG_X4_NDX +# define REG_X5 REG_X5_NDX +# define REG_X6 REG_X6_NDX +# define REG_X7 REG_X7_NDX +# define REG_X8 REG_X8_NDX +# define REG_X9 REG_X9_NDX +# define REG_X10 REG_X10_NDX +# define REG_X11 REG_X11_NDX +# define REG_X12 REG_X12_NDX +# define REG_X13 REG_X13_NDX +# define REG_X14 REG_X14_NDX +# define REG_X15 REG_X15_NDX +# define REG_X16 REG_X16_NDX +# define REG_X17 REG_X17_NDX +# define REG_X18 REG_X18_NDX +# define REG_X19 REG_X19_NDX +# define REG_X20 REG_X20_NDX +# define REG_X21 REG_X21_NDX +# define REG_X22 REG_X22_NDX +# define REG_X23 REG_X23_NDX +# define REG_X24 REG_X24_NDX +# define REG_X25 REG_X25_NDX +# define REG_X26 REG_X26_NDX +# define REG_X27 REG_X27_NDX +# define REG_X28 REG_X28_NDX +# define REG_X29 REG_X29_NDX +# define REG_X30 REG_X30_NDX +# define REG_X31 REG_X31_NDX +# define REG_INT_CTX REG_X32_NDX +#endif + +/* Register aliases */ + +#define REG_GP REG_X26 +#define REG_FP REG_X27 +#define REG_SP REG_X28 +#define REG_RA REG_X29 +#define REG_EA REG_X30 +#define REG_BA REG_X31 + +#define REG_EPC REG_X30 + +#define REG_A0 REG_X1 +#define REG_A1 REG_X2 +#define REG_A2 REG_X3 +#define REG_A3 REG_X4 +#define REG_A4 REG_X5 +#define REG_A5 REG_X6 +#define REG_A6 REG_X7 +#define REG_A7 REG_X8 + +#define REG_IE REG_INT_CTX + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +struct xcptcontext +{ + /* Register save area */ + + uint32_t regs[XCPTCONTEXT_REGS]; +}; + +#endif /* __ASSEMBLY__ */ + +#endif /* __ARCH_MISOC_INCLUDE_LM32_IRQ_H */ diff --git a/arch/misoc/include/lm32/syscall.h b/arch/misoc/include/lm32/syscall.h new file mode 100644 index 00000000000..d0816c7a217 --- /dev/null +++ b/arch/misoc/include/lm32/syscall.h @@ -0,0 +1,208 @@ +/**************************************************************************** + * arch/misoc/include/lm32/syscall.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/* This file should never be included directed but, rather, only indirectly + * through include/syscall.h or include/sys/sycall.h + */ + +#ifndef __ARCH_MISOC_INCLUDE_LM32_SYSCALL_H +#define __ARCH_MISOC_INCLUDE_LM32_SYSCALL_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#ifndef __ASSEMBLY__ +# include +#endif + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#define SYS_syscall 0x00 + +/* Configuration ********************************************************************/ +/* SYS call 1 and 2 are defined for internal use by the LM32 port (see + * arch/miscoc/include/lm32/syscall.h). In addition, SYS call 3 is the return from + * a SYS call in kernel mode. The first four syscall values must, therefore, be + * reserved (0 is not used). + */ + +#ifdef CONFIG_BUILD_KERNEL +# ifndef CONFIG_SYS_RESERVED +# error "CONFIG_SYS_RESERVED must be defined to the value 4" +# elif CONFIG_SYS_RESERVED != 4 +# error "CONFIG_SYS_RESERVED must have the value 4" +# endif +#endif + +/* sys_call macros ******************************************************************/ + +#ifndef __ASSEMBLY__ + +/* Context switching system calls ***************************************************/ + +/* SYS call 0: (not used) */ + +/* SYS call 1: + * + * void up_fullcontextrestore(uint32_t *restoreregs) noreturn_function; + */ + +#define SYS_restore_context (1) +#define up_fullcontextrestore(restoreregs) \ + (void)sys_call1(SYS_restore_context, (uintptr_t)restoreregs) + +/* SYS call 2: + * + * void up_switchcontext(uint32_t *saveregs, uint32_t *restoreregs); + */ + +#define SYS_switch_context (2) +#define up_switchcontext(saveregs, restoreregs) \ + (void)sys_call2(SYS_switch_context, (uintptr_t)saveregs, (uintptr_t)restoreregs) + +#ifdef CONFIG_BUILD_KERNEL +/* SYS call 3: + * + * void up_syscall_return(void); + */ + +#define SYS_syscall_return (3) +#define up_syscall_return() (void)sys_call0(SYS_syscall_return) + +#endif +#endif /* __ASSEMBLY__ */ + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +/**************************************************************************** + * Inline functions + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#ifdef __cplusplus +#define EXTERN extern "C" +extern "C" +{ +#else +#define EXTERN extern +#endif + +/**************************************************************************** + * Name: up_syscall0 + * + * Description: + * System call SYS_ argument and no additional parameters. + * + ****************************************************************************/ + +uintptr_t sys_call0(unsigned int nbr); + +/**************************************************************************** + * Name: up_syscall1 + * + * Description: + * System call SYS_ argument and one additional parameter. + * + ****************************************************************************/ + +uintptr_t sys_call1(unsigned int nbr, uintptr_t parm1); + +/**************************************************************************** + * Name: up_syscall2 + * + * Description: + * System call SYS_ argument and two additional parameters. + * + ****************************************************************************/ + +uintptr_t sys_call2(unsigned int nbr, uintptr_t parm1, uintptr_t parm2); + +/**************************************************************************** + * Name: up_syscall3 + * + * Description: + * System call SYS_ argument and three additional parameters. + * + ****************************************************************************/ + +uintptr_t sys_call3(unsigned int nbr, uintptr_t parm1, uintptr_t parm2, + uintptr_t parm3); + +/**************************************************************************** + * Name: up_syscall4 + * + * Description: + * System call SYS_ argument and four additional parameters. + * + ****************************************************************************/ + +uintptr_t sys_call4(unsigned int nbr, uintptr_t parm1, uintptr_t parm2, + uintptr_t parm3, uintptr_t parm4); + +/**************************************************************************** + * Name: up_syscall5 + * + * Description: + * System call SYS_ argument and five additional parameters. + * + ****************************************************************************/ + +uintptr_t sys_call5(unsigned int nbr, uintptr_t parm1, uintptr_t parm2, + uintptr_t parm3, uintptr_t parm4, uintptr_t parm5); + +#undef EXTERN +#ifdef __cplusplus +} +#endif + +#endif /* __ASSEMBLY__ */ +#endif /* __ARCH_MISOC_INCLUDE_LM32_SYSCALL_H */ diff --git a/arch/misoc/include/lm32/types.h b/arch/misoc/include/lm32/types.h new file mode 100644 index 00000000000..0e113100f91 --- /dev/null +++ b/arch/misoc/include/lm32/types.h @@ -0,0 +1,95 @@ +/**************************************************************************** + * arch/misoc/include/lm32/types.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/* This file should never be included directed but, rather, only indirectly + * through stdint.h + */ + +#ifndef __ARCH_MISOC_INCLUDE_LM32_TYPES_H +#define __ARCH_MISOC_INCLUDE_LM32_TYPES_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Type Declarations + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +/* These are the sizes of the standard integer types. NOTE that these type + * names have a leading underscore character. This file will be included + * (indirectly) by include/stdint.h and typedef'ed to the final name without + * the underscore character. This roundabout way of doings things allows + * the stdint.h to be removed from the include/ directory in the event that + * the user prefers to use the definitions provided by their toolchain header + * files + */ + +typedef signed char _int8_t; +typedef unsigned char _uint8_t; + +typedef signed short _int16_t; +typedef unsigned short _uint16_t; + +typedef signed int _int32_t; +typedef unsigned int _uint32_t; + +typedef signed long long _int64_t; +typedef unsigned long long _uint64_t; +#define __INT64_DEFINED + +/* A pointer is 4 bytes */ + +typedef signed int _intptr_t; +typedef unsigned int _uintptr_t; + +/* This is the size of the interrupt state save returned by up_irq_save(). */ + +typedef unsigned int irqstate_t; + +#endif /* __ASSEMBLY__ */ + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#endif /* __ARCH_MISOC_INCLUDE_LM32_TYPES_H */ diff --git a/arch/misoc/include/syscall.h b/arch/misoc/include/syscall.h new file mode 100644 index 00000000000..71b9e85a6c4 --- /dev/null +++ b/arch/misoc/include/syscall.h @@ -0,0 +1,88 @@ +/**************************************************************************** + * arch/misoc/include/syscall.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/* This file should never be included directed but, rather, only indirectly + * through include/syscall.h or include/sys/sycall.h + */ + +#ifndef __ARCH_MISOC_INCLUDE_SYSCALL_H +#define __ARCH_MISOC_INCLUDE_SYSCALL_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +/* Include LM32 architecture-specific syscall macros */ + +#ifdef CONFIG_ARCH_MISOC +# include +#endif + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +/**************************************************************************** + * Inline functions + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#ifndef __ASSEMBLY__ +#ifdef __cplusplus +#define EXTERN extern "C" +extern "C" +{ +#else +#define EXTERN extern +#endif + +#undef EXTERN +#ifdef __cplusplus +} +#endif +#endif + +#endif /* __ARCH_MISOC_INCLUDE_SYSCALL_H */ diff --git a/arch/misoc/include/types.h b/arch/misoc/include/types.h new file mode 100644 index 00000000000..f63ab15f19c --- /dev/null +++ b/arch/misoc/include/types.h @@ -0,0 +1,94 @@ +/**************************************************************************** + * arch/misoc/include/types.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/* This file should never be included directed but, rather, only indirectly + * through stdint.h + */ + +#ifndef __ARCH_MISOC_INCLUDE_TYPESL_H +#define __ARCH_MISOC_INCLUDE_TYPESL_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Type Declarations + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +/* These are the sizes of the standard integer types. NOTE that these type + * names have a leading underscore character. This file will be included + * (indirectly) by include/stdint.h and typedef'ed to the final name without + * the underscore character. This roundabout way of doings things allows + * the stdint.h to be removed from the include/ directory in the event that + * the user prefers to use the definitions provided by their toolchain header + * files + */ + +typedef signed char _int8_t; +typedef unsigned char _uint8_t; + +typedef signed short _int16_t; +typedef unsigned short _uint16_t; + +typedef signed int _int32_t; +typedef unsigned int _uint32_t; + +typedef signed long long _int64_t; +typedef unsigned long long _uint64_t; +#define __INT64_DEFINED + +/* A pointer is 4 bytes */ + +typedef signed int _intptr_t; +typedef unsigned int _uintptr_t; + +/* This is the size of the interrupt state save returned by up_irq_save(). */ + +typedef unsigned int irqstate_t; + +#endif /* __ASSEMBLY__ */ + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#endif /* __ARCH_MISOC_INCLUDE_TYPESL_H */ diff --git a/arch/misoc/src/.gitignore b/arch/misoc/src/.gitignore new file mode 100644 index 00000000000..dfdfc935431 --- /dev/null +++ b/arch/misoc/src/.gitignore @@ -0,0 +1,5 @@ +/.depend +/Make.dep +/locked.r +/board +/chip diff --git a/arch/misoc/src/Makefile b/arch/misoc/src/Makefile new file mode 100644 index 00000000000..19bd124422c --- /dev/null +++ b/arch/misoc/src/Makefile @@ -0,0 +1,185 @@ +############################################################################ +# arch/misoc/src/Makefile +# +# Copyright (C) 2016 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# 3. Neither the name NuttX nor the names of its contributors may be +# used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# +############################################################################ + +-include $(TOPDIR)/Make.defs +-include chip/Make.defs + +ARCH_SUBDIR = lm32 + +ifeq ($(CONFIG_WINDOWS_NATIVE),y) + ARCH_SRCDIR = $(TOPDIR)\arch\$(CONFIG_ARCH)\src + NUTTX = "$(TOPDIR)\nuttx$(EXEEXT)" + INCLUDES += -I "$(ARCH_SRCDIR)\chip" + INCLUDES += -I "$(ARCH_SRCDIR)\common" + INCLUDES += -I "$(ARCH_SRCDIR)\$(ARCH_SUBDIR)" + INCLUDES += -I "$(TOPDIR)\sched" +else + ARCH_SRCDIR = $(TOPDIR)/arch/$(CONFIG_ARCH)/src +ifeq ($(WINTOOL),y) + NUTTX = "${shell cygpath -w $(TOPDIR)/nuttx$(EXEEXT)}" + INCLUDES += -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}" + INCLUDES += -I "${shell cygpath -w $(ARCH_SRCDIR)/common}" + INCLUDES += -I "${shell cygpath -w $(ARCH_SRCDIR)/$(ARCH_SUBDIR)}" + INCLUDES += -I "${shell cygpath -w $(TOPDIR)/sched}" +else + NUTTX = "$(TOPDIR)/nuttx$(EXEEXT)" + INCLUDES += -I "$(ARCH_SRCDIR)/chip" + INCLUDES += -I "$(ARCH_SRCDIR)/common" + INCLUDES += -I "$(ARCH_SRCDIR)/$(ARCH_SUBDIR)" + INCLUDES += -I "$(TOPDIR)/sched" +endif +endif + +CPPFLAGS += $(INCLUDES) $(EXTRADEFINES) +CFLAGS += $(INCLUDES) $(EXTRADEFINES) +CXXFLAGS += $(INCLUDES) $(EXTRADEFINES) +AFLAGS += $(INCLUDES) $(EXTRADEFINES) + +HEAD_OBJ = $(HEAD_ASRC:.S=$(OBJEXT)) +STARTUP_OBJS ?= $(HEAD_OBJ) + +ASRCS = $(CHIP_ASRCS) $(CMN_ASRCS) +AOBJS = $(ASRCS:.S=$(OBJEXT)) + +CSRCS = $(CHIP_CSRCS) $(CMN_CSRCS) +COBJS = $(CSRCS:.c=$(OBJEXT)) + +SRCS = $(ASRCS) $(CSRCS) +OBJS = $(AOBJS) $(COBJS) + +# Override in Make.defs if linker is not 'ld' + +LDSTARTGROUP ?= --start-group +LDENDGROUP ?= --end-group + +LDFLAGS += $(ARCHSCRIPT) +EXTRA_LIBS ?= +LINKLIBS ?= + +ifeq ($(CONFIG_WINDOWS_NATIVE),y) + BOARDMAKE = $(if $(wildcard .\board\Makefile),y,) + LIBPATHS += -L"$(TOPDIR)\lib" +ifeq ($(BOARDMAKE),y) + LIBPATHS += -L"$(TOPDIR)\arch\$(CONFIG_ARCH)\src\board" +endif + +else + BOARDMAKE = $(if $(wildcard ./board/Makefile),y,) + +ifeq ($(WINTOOL),y) + LIBPATHS += -L"${shell cygpath -w "$(TOPDIR)/lib"}" +ifeq ($(BOARDMAKE),y) + LIBPATHS += -L"${shell cygpath -w "$(TOPDIR)/arch/$(CONFIG_ARCH)/src/board"}" +endif + +else + LIBPATHS += -L"$(TOPDIR)/lib" +ifeq ($(BOARDMAKE),y) + LIBPATHS += -L"$(TOPDIR)/arch/$(CONFIG_ARCH)/src/board" +endif +endif +endif + +LDLIBS = $(patsubst %.a,%,$(patsubst lib%,-l%,$(LINKLIBS))) +ifeq ($(BOARDMAKE),y) + LDLIBS += -lboard +endif + +LIBGCC = "${shell "$(CC)" $(ARCHCPUFLAGS) -print-libgcc-file-name}" + +VPATH = chip:common:$(ARCH_SUBDIR) + +all: $(HEAD_OBJ) libarch$(LIBEXT) + +.PHONY: board/libboard$(LIBEXT) + +$(AOBJS) $(HEAD_OBJ): %$(OBJEXT): %.S + $(call ASSEMBLE, $<, $@) + +$(COBJS): %$(OBJEXT): %.c + $(call COMPILE, $<, $@) + +libarch$(LIBEXT): $(OBJS) + $(call ARCHIVE, $@, $(OBJS)) + +board/libboard$(LIBEXT): + $(Q) $(MAKE) -C board TOPDIR="$(TOPDIR)" libboard$(LIBEXT) EXTRADEFINES=$(EXTRADEFINES) + +nuttx$(EXEEXT): $(HEAD_OBJ) board/libboard$(LIBEXT) + $(Q) $(LD) --entry=__start $(LDFLAGS) $(LIBPATHS) -o $(NUTTX) $(HEAD_OBJ) $(EXTRA_OBJS) \ + $(LDSTARTGROUP) $(LDLIBS) $(EXTRA_LIBS) $(LIBGCC) $(LDENDGROUP) +ifneq ($(CONFIG_WINDOWS_NATIVE),y) + $(Q) $(NM) $(NUTTX) | \ + grep -v '\(compiled\)\|\(\$(OBJEXT)$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ + sort > $(TOPDIR)/System.map +endif + +# This is part of the top-level export target + +export_startup: board/libboard$(LIBEXT) $(STARTUP_OBJS) + $(Q) if [ -d "$(EXPORT_DIR)/startup" ]; then \ + cp -f $(STARTUP_OBJS) "$(EXPORT_DIR)/startup"; \ + else \ + echo "$(EXPORT_DIR)/startup does not exist"; \ + exit 1; \ + fi + +# Dependencies + +.depend: Makefile chip/Make.defs $(SRCS) +ifeq ($(BOARDMAKE),y) + $(Q) $(MAKE) -C board TOPDIR="$(TOPDIR)" depend +endif + $(Q) $(MKDEP) --dep-path chip --dep-path common --dep-path $(ARCH_SUBDIR) \ + "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep + $(Q) touch $@ + +depend: .depend + +clean: +ifeq ($(BOARDMAKE),y) + $(Q) $(MAKE) -C board TOPDIR="$(TOPDIR)" clean +endif + $(call DELFILE, libarch$(LIBEXT)) + $(call CLEAN) + +distclean: clean +ifeq ($(BOARDMAKE),y) + $(Q) $(MAKE) -C board TOPDIR="$(TOPDIR)" distclean +endif + $(call DELFILE, Make.dep) + $(call DELFILE, .depend) + +-include Make.dep diff --git a/arch/misoc/src/common/hw/common.h b/arch/misoc/src/common/hw/common.h new file mode 100644 index 00000000000..a6a7a92159f --- /dev/null +++ b/arch/misoc/src/common/hw/common.h @@ -0,0 +1,49 @@ +/**************************************************************************** + * arch/misoc/src/common/hw/common.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __ARCH_MISOC_SRC_COMMON_HW_COMMON_H +#define __ARCH_MISOC_SRC_COMMON_HW_COMMON_H + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#ifdef __ASSEMBLER__ +# define MMPTR(x) x +#else +# define MMPTR(x) (*((volatile unsigned int *)(x))) +#endif + +#endif /* __ARCH_MISOC_SRC_COMMON_HW_COMMON_H */ diff --git a/arch/misoc/src/common/hw/ethmac_mem.h b/arch/misoc/src/common/hw/ethmac_mem.h new file mode 100644 index 00000000000..61964809126 --- /dev/null +++ b/arch/misoc/src/common/hw/ethmac_mem.h @@ -0,0 +1,54 @@ +/**************************************************************************** + * arch/misoc/src/common/hw/emac_mem.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __ARCH_MISOC_SRC_COMMON_HW_EMAC_MEM_H +#define __ARCH_MISOC_SRC_COMMON_HW_EMAC_MEM_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#define ETHMAC_RX0_BASE ETHMAC_BASE +#define ETHMAC_RX1_BASE (ETHMAC_BASE+0x0800) +#define ETHMAC_TX0_BASE (ETHMAC_BASE+0x1000) +#define ETHMAC_TX1_BASE (ETHMAC_BASE+0x1800) + +#endif /* __ARCH_MISOC_SRC_COMMON_HW_EMAC_MEM_H */ diff --git a/arch/misoc/src/common/hw/flags.h b/arch/misoc/src/common/hw/flags.h new file mode 100644 index 00000000000..7ed2f4bf427 --- /dev/null +++ b/arch/misoc/src/common/hw/flags.h @@ -0,0 +1,79 @@ +/**************************************************************************** + * arch/misoc/src/common/hw/emac_mem.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __ARCH_MISOC_SRC_COMMON_HW_FLAGS_H +#define __ARCH_MISOC_SRC_COMMON_HW_FLAGS_H + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#define UART_EV_TX 0x1 +#define UART_EV_RX 0x2 + +#define DFII_CONTROL_SEL 0x01 +#define DFII_CONTROL_CKE 0x02 +#define DFII_CONTROL_ODT 0x04 +#define DFII_CONTROL_RESET_N 0x08 + +#define DFII_COMMAND_CS 0x01 +#define DFII_COMMAND_WE 0x02 +#define DFII_COMMAND_CAS 0x04 +#define DFII_COMMAND_RAS 0x08 +#define DFII_COMMAND_WRDATA 0x10 +#define DFII_COMMAND_RDDATA 0x20 + +#define ETHMAC_EV_SRAM_WRITER 0x1 +#define ETHMAC_EV_SRAM_READER 0x1 + +#define CLKGEN_STATUS_BUSY 0x1 +#define CLKGEN_STATUS_PROGDONE 0x2 +#define CLKGEN_STATUS_LOCKED 0x4 + +#define DVISAMPLER_TOO_LATE 0x1 +#define DVISAMPLER_TOO_EARLY 0x2 + +#define DVISAMPLER_DELAY_MASTER_CAL 0x01 +#define DVISAMPLER_DELAY_MASTER_RST 0x02 +#define DVISAMPLER_DELAY_SLAVE_CAL 0x04 +#define DVISAMPLER_DELAY_SLAVE_RST 0x08 +#define DVISAMPLER_DELAY_INC 0x10 +#define DVISAMPLER_DELAY_DEC 0x20 + +#define DVISAMPLER_SLOT_EMPTY 0 +#define DVISAMPLER_SLOT_LOADED 1 +#define DVISAMPLER_SLOT_PENDING 2 + +#endif /* __ARCH_MISOC_SRC_COMMON_HW_FLAGS_H */ diff --git a/arch/misoc/src/common/misoc.h b/arch/misoc/src/common/misoc.h new file mode 100644 index 00000000000..4726759ea58 --- /dev/null +++ b/arch/misoc/src/common/misoc.h @@ -0,0 +1,120 @@ +/**************************************************************************** + * arch/misoc/src/common/serial.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __ARCH_MISOC_SRC_COMMON_MISOC_H +#define __ARCH_MISOC_SRC_COMMON_MISOC_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* Low-level register access */ + +#define getreg8(a) (*(volatile uint8_t *)(a)) +#define putreg8(v,a) (*(volatile uint8_t *)(a) = (v)) +#define getreg16(a) (*(volatile uint16_t *)(a)) +#define putreg16(v,a) (*(volatile uint16_t *)(a) = (v)) +#define getreg32(a) (*(volatile uint32_t *)(a)) +#define putreg32(v,a) (*(volatile uint32_t *)(a) = (v)) + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +/**************************************************************************** + * Name: up_serialinit + * + * Description: + * Register serial console and serial ports. This assumes that + * misoc_earlyserialinit was called previously. + * + ****************************************************************************/ + +void misoc_serial_initialize(void); + +/**************************************************************************** + * Name: misoc_puts + * + * Description: + * This is a low-level helper function used to support debug. + * + ****************************************************************************/ + +void misoc_puts(const char *str); + +/**************************************************************************** + * Name: misoc_lowputc + * + * Description: + * Low-level, blocking character output the the serial console. + * + ****************************************************************************/ + +void misoc_lowputc(char ch); + +/**************************************************************************** + * Name: misoc_lowputs + * + * Description: + * This is a low-level helper function used to support debug. + * + ****************************************************************************/ + +void misoc_lowputs(const char *str); + +/**************************************************************************** + * Name: modifyreg[N] + * + * Description: + * Atomic modification of registers. + * + ****************************************************************************/ + +void modifyreg8(unsigned int addr, uint8_t clearbits, uint8_t setbits); +void modifyreg16(unsigned int addr, uint16_t clearbits, uint16_t setbits); +void modifyreg32(unsigned int addr, uint32_t clearbits, uint32_t setbits); + +#endif /* __ASSEMBLY__ */ +#endif /* __ARCH_MISOC_SRC_COMMON_MISOC_H */ diff --git a/arch/misoc/src/common/misoc_lowputs.c b/arch/misoc/src/common/misoc_lowputs.c new file mode 100644 index 00000000000..7b8b962678c --- /dev/null +++ b/arch/misoc/src/common/misoc_lowputs.c @@ -0,0 +1,62 @@ +/**************************************************************************** + * arch/misoc/src/common/misoc_lowputs.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include "misoc.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: misoc_lowputs + * + * Description: + * This is a low-level helper function used to support debug. + * + ****************************************************************************/ + +void misoc_lowputs(const char *str) +{ + while (*str) + { + misoc_lowputc(*str++); + } +} diff --git a/arch/misoc/src/common/misoc_mdelay.c b/arch/misoc/src/common/misoc_mdelay.c new file mode 100644 index 00000000000..2a1ccaa1a14 --- /dev/null +++ b/arch/misoc/src/common/misoc_mdelay.c @@ -0,0 +1,70 @@ +/**************************************************************************** + * arch/misoc/src/common/misoc_mdelay.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_mdelay + * + * Description: + * Delay inline for the requested number of milliseconds. + * *** NOT multi-tasking friendly *** + * + * ASSUMPTIONS: + * The setting CONFIG_BOARD_LOOPSPERMSEC has been calibrated + * + ****************************************************************************/ + +void up_mdelay(unsigned int milliseconds) +{ + volatile int i; + volatile int j; + + for (i = 0; i < milliseconds; i++) + { + for (j = 0; j < CONFIG_BOARD_LOOPSPERMSEC; j++) + { + } + } +} diff --git a/arch/misoc/src/common/misoc_modifyreg16.c b/arch/misoc/src/common/misoc_modifyreg16.c new file mode 100644 index 00000000000..a8502dbe54a --- /dev/null +++ b/arch/misoc/src/common/misoc_modifyreg16.c @@ -0,0 +1,73 @@ +/**************************************************************************** + * arch/misoc/src/common/misoc_modifyreg16.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include +#include + +#include "misoc.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: modifyreg16 + * + * Description: + * Atomically modify the specified bits in a memory mapped register + * + ****************************************************************************/ + +void modifyreg16(unsigned int addr, uint16_t clearbits, uint16_t setbits) +{ + irqstate_t flags; + uint16_t regval; + + flags = enter_critical_section(); + regval = getreg16(addr); + regval &= ~clearbits; + regval |= setbits; + putreg16(regval, addr); + leave_critical_section(flags); +} diff --git a/arch/misoc/src/common/misoc_modifyreg32.c b/arch/misoc/src/common/misoc_modifyreg32.c new file mode 100644 index 00000000000..65eda199abf --- /dev/null +++ b/arch/misoc/src/common/misoc_modifyreg32.c @@ -0,0 +1,73 @@ +/**************************************************************************** + * arch/misoc/src/common/misoc_modifyreg32.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include +#include + +#include "misoc.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: modifyreg32 + * + * Description: + * Atomically modify the specified bits in a memory mapped register + * + ****************************************************************************/ + +void modifyreg32(unsigned int addr, uint32_t clearbits, uint32_t setbits) +{ + irqstate_t flags; + uint32_t regval; + + flags = enter_critical_section(); + regval = getreg32(addr); + regval &= ~clearbits; + regval |= setbits; + putreg32(regval, addr); + leave_critical_section(flags); +} diff --git a/arch/misoc/src/common/misoc_modifyreg8.c b/arch/misoc/src/common/misoc_modifyreg8.c new file mode 100644 index 00000000000..88ba788e7b2 --- /dev/null +++ b/arch/misoc/src/common/misoc_modifyreg8.c @@ -0,0 +1,73 @@ +/**************************************************************************** + * arch/misoc/src/common/misoc_modifyreg8.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include +#include + +#include "misoc.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: modifyreg8 + * + * Description: + * Atomically modify the specified bits in a memory mapped register + * + ****************************************************************************/ + +void modifyreg8(unsigned int addr, uint8_t clearbits, uint8_t setbits) +{ + irqstate_t flags; + uint8_t regval; + + flags = enter_critical_section(); + regval = getreg8(addr); + regval &= ~clearbits; + regval |= setbits; + putreg8(regval, addr); + leave_critical_section(flags); +} diff --git a/arch/misoc/src/common/misoc_puts.c b/arch/misoc/src/common/misoc_puts.c new file mode 100644 index 00000000000..f048b74795d --- /dev/null +++ b/arch/misoc/src/common/misoc_puts.c @@ -0,0 +1,63 @@ +/**************************************************************************** + * arch/misoc/src/common/misoc_puts.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include + +#include "misoc.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: misoc_puts + * + * Description: + * This is a low-level helper function used to support debug. + * + ****************************************************************************/ + +void misoc_puts(const char *str) +{ + while (*str) + { + up_putc(*str++); + } +} diff --git a/arch/misoc/src/common/misoc_serial.c b/arch/misoc/src/common/misoc_serial.c new file mode 100644 index 00000000000..c46e83775a4 --- /dev/null +++ b/arch/misoc/src/common/misoc_serial.c @@ -0,0 +1,685 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_blocktask.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include + +#include + +#include "chip.h" +#include "hw/flags.h" +#include "misoc.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#undef HAVE_UART_DEVICE +#if defined(CONFIG_MISOC_UART1) || defined(CONFIG_MISOC_UART2) +# define HAVE_UART_DEVICE 1 +#endif + +/* Is there a serial console? There should be no more than one defined. It + * could be on any UARTn, n=1,.. CHIP_NUARTS + */ + +#if defined(CONFIG_UART1_SERIAL_CONSOLE) && defined(CONFIG_MISOC_UART1) +# undef CONFIG_UART2_SERIAL_CONSOLE +# define HAVE_SERIAL_CONSOLE 1 +#elif defined(CONFIG_UART2_SERIAL_CONSOLE) && defined(CONFIG_MISOC_UART2) +# undef CONFIG_UART1_SERIAL_CONSOLE +# define HAVE_SERIAL_CONSOLE 1 +#else +# undef CONFIG_UART1_SERIAL_CONSOLE +# undef CONFIG_UART2_SERIAL_CONSOLE +# undef HAVE_SERIAL_CONSOLE +#endif + +/* If we are not using the serial driver for the console, then we still must + * provide some minimal implementation of misoc_putc. + */ + +#ifdef USE_SERIALDRIVER + +/* Which UART with be tty0/console and which tty1? The console will always + * be ttyS0. If there is no console then will use the lowest numbered UART. + */ + +#ifdef HAVE_SERIAL_CONSOLE +# if defined(CONFIG_UART1_SERIAL_CONSOLE) +# define CONSOLE_DEV g_uart1port /* UART1 is console */ +# define TTYS0_DEV g_uart1port /* UART1 is ttyS0 */ +# undef TTYS1_DEV /* No ttyS1 */ +# define SERIAL_CONSOLE 1 +# else +# error "I'm confused... Do we have a serial console or not?" +# endif +#else +# undef CONSOLE_DEV /* No console */ +# undef CONFIG_UART1_SERIAL_CONSOLE +# if defined(CONFIG_NR5_UART1) +# define TTYS0_DEV g_uart1port /* UART1 is ttyS0 */ +# undef TTYS1_DEV /* No ttyS1 */ +# define SERIAL_CONSOLE 1 +# else +# undef TTYS0_DEV +# undef TTYS1_DEV +# endif +#endif + +/* Common initialization logic will not not know that the all of the UARTs + * have been disabled. So, as a result, we may still have to provide + * stub implementations of misoc_earlyserialinit(), misoc_serial_initialize(), and + * misoc_putc(). + */ + +#ifdef HAVE_UART_DEVICE + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +struct misoc_dev_s +{ + uintptr_t uartbase; + uintptr_t rxtx_addr; + uintptr_t txfull_addr; + uintptr_t rxempty_addr; + uintptr_t ev_status_addr; + uintptr_t ev_pending_addr; + uintptr_t ev_enable_addr; + uint8_t irq; +}; + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/* Low-level helpers */ + +static inline uint32_t misoc_serialin(struct misoc_dev_s *priv, int offset); +static inline void misoc_serialout(struct misoc_dev_s *priv, int offset, + uint32_t value); +static void misoc_restoreuartint(struct uart_dev_s *dev, uint8_t im); +static void misoc_disableuartint(struct uart_dev_s *dev, uint8_t *im); + +/* Serial driver methods */ + +static int misoc_setup(struct uart_dev_s *dev); +static void misoc_shutdown(struct uart_dev_s *dev); +static int misoc_attach(struct uart_dev_s *dev); +static void misoc_detach(struct uart_dev_s *dev); +static int misoc_uart_interrupt(int irq, void *context); +static int misoc_ioctl(struct file *filep, int cmd, unsigned long arg); +static int misoc_receive(struct uart_dev_s *dev, uint32_t *status); +static void misoc_rxint(struct uart_dev_s *dev, bool enable); +static bool misoc_rxavailable(struct uart_dev_s *dev); +static void misoc_send(struct uart_dev_s *dev, int ch); +static void misoc_txint(struct uart_dev_s *dev, bool enable); +static bool misoc_txready(struct uart_dev_s *dev); +static bool misoc_txempty(struct uart_dev_s *dev); + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +static const struct uart_ops_s g_uart_ops = +{ + .setup = misoc_setup, + .shutdown = misoc_shutdown, + .attach = misoc_attach, + .detach = misoc_detach, + .ioctl = misoc_ioctl, + .receive = misoc_receive, + .rxint = misoc_rxint, + .rxavailable = misoc_rxavailable, +#ifdef CONFIG_SERIAL_IFLOWCONTROL + .rxflowcontrol = NULL, +#endif + .send = misoc_send, + .txint = misoc_txint, + .txready = misoc_txready, + .txempty = misoc_txempty, +}; + +/* I/O buffers */ + +#ifdef CONFIG_MISOC_UART1 +static char g_uart1rxbuffer[CONFIG_UART1_RXBUFSIZE]; +static char g_uart1txbuffer[CONFIG_UART1_TXBUFSIZE]; +#endif + +/* This describes the state of the NR5 UART1 port. */ + +#ifdef CONFIG_MISOC_UART1 +#ifndef CONFIG_MISOC_UART1PRIO +# define CONFIG_MISOC_UART1PRIO 4 +#endif + +static struct misoc_dev_s g_uart1priv = +{ + .uartbase = CSR_UART_BASE, + .irq = UART_INTERRUPT, + .rxtx_addr = CSR_UART_RXTX_ADDR, + .rxempty_addr = CSR_UART_RXEMPTY_ADDR, + .txfull_addr = CSR_UART_TXFULL_ADDR, + .ev_status_addr = CSR_UART_EV_STATUS_ADDR, + .ev_pending_addr = CSR_UART_EV_PENDING_ADDR, + .ev_enable_addr = CSR_UART_EV_ENABLE_ADDR, +}; + +static uart_dev_t g_uart1port = +{ +#if SERIAL_CONSOLE == 1 + .isconsole = 1, +#endif + .recv = + { + .size = CONFIG_UART1_RXBUFSIZE, + .buffer = g_uart1rxbuffer, + }, + .xmit = + { + .size = CONFIG_UART1_TXBUFSIZE, + .buffer = g_uart1txbuffer, + }, + .ops = &g_uart_ops, + .priv = &g_uart1priv, +}; +#endif + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: misoc_restoreuartint + ****************************************************************************/ + +static void misoc_restoreuartint(struct uart_dev_s *dev, uint8_t im) +{ + /* Re-enable/re-disable interrupts corresponding to the state of bits in + * im. + */ + + uart_ev_enable_write(im); +} + +/**************************************************************************** + * Name: misoc_disableuartint + ****************************************************************************/ + +static void misoc_disableuartint(struct uart_dev_s *dev, uint8_t *im) +{ + struct misoc_dev_s *priv = (struct misoc_dev_s *)dev->priv; + + if (im) + { + *im = uart_ev_enable_read(); + } + + misoc_restoreuartint(dev, 0); +} + +/**************************************************************************** + * Name: misoc_setup + * + * Description: + * Configure the UART baud, bits, parity, etc. This method is called the + * first time that the serial port is opened. + * + ****************************************************************************/ + +static int misoc_setup(struct uart_dev_s *dev) +{ + uart_ev_pending_write(uart_ev_pending_read()); + return OK; +} + +/**************************************************************************** + * Name: misoc_shutdown + * + * Description: + * Disable the UART. This method is called when the serial + * port is closed + * + ****************************************************************************/ + +static void misoc_shutdown(struct uart_dev_s *dev) +{ +} + +/**************************************************************************** + * Name: misoc_attach + * + * Description: + * Configure the UART to operation in interrupt driven mode. This method is + * called when the serial port is opened. Normally, this is just after the + * the setup() method is called, however, the serial console may operate in + * a non-interrupt driven mode during the boot phase. + * + * RX and TX interrupts are not enabled by the attach method (unless the + * hardware supports multiple levels of interrupt enabling). The RX and TX + * interrupts are not enabled until the txint() and rxint() methods are called. + * + ****************************************************************************/ + +static int misoc_attach(struct uart_dev_s *dev) +{ + struct misoc_dev_s *priv = (struct misoc_dev_s *)dev->priv; + uint32_t im; + + irq_attach(priv->irq, misoc_uart_interrupt); + + /* enable interrupt */ + /* TODO: move that somewhere proper ! */ + + im = irq_getmask(); + im |= (1 << UART_INTERRUPT); + irq_setmask(im); + + return OK; +} + +/**************************************************************************** + * Name: misoc_detach + * + * Description: + * Detach UART interrupts. This method is called when the serial port is + * closed normally just before the shutdown method is called. The exception + * is the serial console which is never shutdown. + * + ****************************************************************************/ + +static void misoc_detach(struct uart_dev_s *dev) +{ + struct misoc_dev_s *priv = (struct misoc_dev_s *)dev->priv; + uint32_t im; + + /* TODO: move that somewhere proper */ + + im = irq_getmask(); + im &= ~(1 << UART_INTERRUPT); + irq_setmask(im); + + irq_detach(priv->irq); +} + +/**************************************************************************** + * Name: misoc_interrupt + * + * Description: + * This is the UART interrupt handler. It will be invoked when an + * interrupt received on the 'irq' It should call uart_transmitchars or + * uart_receivechar to perform the appropriate data transfers. The + * interrupt handling logic must be able to map the 'irq' number into the + * approprite uart_dev_s structure in order to call these functions. + * + ****************************************************************************/ + +static int misoc_uart_interrupt(int irq, void *context) +{ + uint32_t stat; + struct uart_dev_s *dev = NULL; + int i; + + dev = &g_uart1port; + + /* Read as much as we can */ + + stat = uart_ev_pending_read(); + if (stat & UART_EV_RX) + { + while (!uart_rxempty_read()) + { + uart_recvchars(dev); + } + } + + /* Try to send all the buffer that were not sent. Does uart_xmitchars + * send only if there is something to send ??? + */ + + if ((stat & UART_EV_TX) != 0) + { + uart_ev_pending_write(UART_EV_TX); + uart_xmitchars(dev); + } + + return OK; +} + +/**************************************************************************** + * Name: misoc_ioctl + * + * Description: + * All ioctl calls will be routed through this method + * + ****************************************************************************/ + +static int misoc_ioctl(struct file *filep, int cmd, unsigned long arg) +{ +#ifdef CONFIG_SERIAL_TERMIOS + return -ENOSYS; +#else + return -ENOTTY; +#endif +} + +/**************************************************************************** + * Name: misoc_receive + * + * Description: + * Called (usually) from the interrupt level to receive one + * character from the UART. Error bits associated with the + * receipt are provided in the return 'status'. + * + ****************************************************************************/ + +static int misoc_receive(struct uart_dev_s *dev, uint32_t *status) +{ + int ret; + + if (status != NULL) + { + *status = 0; + } + + ret = uart_rxtx_read(); + + uart_ev_pending_write(UART_EV_RX); + + return ret; +} + +/**************************************************************************** + * Name: misoc_rxint + * + * Description: + * Call to enable or disable RX interrupts + * + ****************************************************************************/ + +static void misoc_rxint(struct uart_dev_s *dev, bool enable) +{ + uint8_t im; + + im = uart_ev_enable_read(); + if (enable) + { + im |= UART_EV_RX; + } + else + { + im &= ~UART_EV_RX; + } + + uart_ev_enable_write(im); +} + +/**************************************************************************** + * Name: misoc_rxavailable + * + * Description: + * Return true if the receive register is not empty + * + ****************************************************************************/ + +static bool misoc_rxavailable(struct uart_dev_s *dev) +{ + return !uart_rxempty_read(); +} + +/**************************************************************************** + * Name: misoc_send + * + * Description: + * This method will send one byte on the UART. + * + ****************************************************************************/ + +static void misoc_send(struct uart_dev_s *dev, int ch) +{ + uart_rxtx_write(ch); +} + +/**************************************************************************** + * Name: misoc_txint + * + * Description: + * Call to enable or disable TX interrupts + * + ****************************************************************************/ + +static void misoc_txint(struct uart_dev_s *dev, bool enable) +{ + uint8_t im; + int i; + + im = uart_ev_enable_read(); + if (enable) + { + im |= UART_EV_TX; + uart_ev_enable_write(im); + + /* Fake an uart INT */ + + uart_xmitchars(dev); + } + else + { + im &= ~UART_EV_TX; + uart_ev_enable_write(im); + } +} + +/**************************************************************************** + * Name: misoc_txready + * + * Description: + * Return true if the tranmsit data register is empty + * + ****************************************************************************/ + +static bool misoc_txready(struct uart_dev_s *dev) +{ + return !uart_txfull_read(); +} + +/**************************************************************************** + * Name: misoc_txempty + * + * Description: + * Return true if the tranmsit data register is empty + * + ****************************************************************************/ + +static bool misoc_txempty(struct uart_dev_s *dev) +{ + return !uart_txfull_read(); +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: misoc_earlyserialinit + * + * Description: + * Performs the low level UART initialization early in debug so that the + * serial console will be available during bootup. This must be called + * before misoc_serial_initialize. + * + ****************************************************************************/ + +void misoc_earlyserialinit(void) +{ +} + +/**************************************************************************** + * Name: misoc_putc + * + * Description: + * Provide priority, low-level access to support OS debug writes + * + ****************************************************************************/ + +int up_putc(int ch) +{ +#ifdef HAVE_SERIAL_CONSOLE + struct uart_dev_s *dev = (struct uart_dev_s *)&CONSOLE_DEV; + uint8_t imr; + + misoc_disableuartint(dev, &imr); + + /* Check for LF */ + + if (ch == '\n') + { + /* Add CR */ + + misoc_lowputc('\r'); + } + + misoc_lowputc(ch); + misoc_restoreuartint(dev, imr); +#endif + return ch; +} + +/**************************************************************************** + * Name: misoc_earlyserialinit, misoc_serial_initialize, and misoc_putc + * + * Description: + * stubs that may be needed. These stubs would be used if all UARTs are + * disabled. In that case, the logic in common/misoc_initialize() is not + * smart enough to know that there are not UARTs and will still expect + * these interfaces to be provided. + * + ****************************************************************************/ + +#else /* HAVE_UART_DEVICE */ +void misoc_earlyserialinit(void) +{ +} + +void misoc_serial_initialize(void) +{ +} + +int up_putc(int ch) +{ + return ch; +} + +#endif /* HAVE_UART_DEVICE */ +#else /* USE_SERIALDRIVER */ + +/**************************************************************************** + * Name: misoc_putc + * + * Description: + * Provide priority, low-level access to support OS debug writes + * + ****************************************************************************/ + +int up_putc(int ch) +{ +#ifdef HAVE_SERIAL_CONSOLE + /* Check for LF */ + + if (ch == '\n') + { + /* Add CR */ + + misoc_lowputc('\r'); + } + + misoc_lowputc(ch); +#endif + + return ch; +} + +#endif /* USE_SERIALDRIVER */ + +void misoc_lowputc(char ch) +{ + while (uart_txfull_read()); + uart_rxtx_write(ch); + uart_ev_pending_write(UART_EV_TX); +} + +/**************************************************************************** + * Name: misoc_serial_initialize + * + * Description: + * Register serial console and serial ports. This assumes + * that misoc_earlyserialinit was called previously. + * + ****************************************************************************/ + +void misoc_serial_initialize(void) +{ +#ifdef USE_SERIALDRIVER + /* Register the console */ + +#ifdef HAVE_SERIAL_CONSOLE + (void)uart_register("/dev/console", &CONSOLE_DEV); +#endif + + /* Register all UARTs */ + (void)uart_register("/dev/ttyS0", &TTYS0_DEV); +#endif +} diff --git a/arch/misoc/src/common/misoc_uart.c b/arch/misoc/src/common/misoc_uart.c new file mode 100644 index 00000000000..76cdd487034 --- /dev/null +++ b/arch/misoc/src/common/misoc_uart.c @@ -0,0 +1,233 @@ +/**************************************************************************** + * arch/misoc/src/common/misoc_uart.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef CONFIG_SERIAL_TERMIOS +# include +#endif + +#include +#include +#include + +#include +#include + +#include "hw/flags.h" +#include "misoc_uart.h" + +#include "chip.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* Buffer sizes must be a power of 2 so that modulos can be computed + * with logical AND. + */ + +#define UART_RINGBUFFER_SIZE_RX 128 +#define UART_RINGBUFFER_MASK_RX (UART_RINGBUFFER_SIZE_RX-1) + +#define UART_RINGBUFFER_SIZE_TX 128 +#define UART_RINGBUFFER_MASK_TX (UART_RINGBUFFER_SIZE_TX-1) + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +static char rx_buf[UART_RINGBUFFER_SIZE_RX]; +static volatile unsigned int rx_produce; +static unsigned int rx_consume; + +static char tx_buf[UART_RINGBUFFER_SIZE_TX]; +static unsigned int tx_produce; +static volatile unsigned int tx_consume; + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: uart_interrupt + ****************************************************************************/ + +static int uart_interrupt(int irq, void *context) +{ + unsigned int stat, rx_produce_next; + + stat = uart_ev_pending_read(); + + if ((stat & UART_EV_RX) != 0) + { + while (!uart_rxempty_read()) + { + rx_produce_next = (rx_produce + 1) & UART_RINGBUFFER_MASK_RX; + if (rx_produce_next != rx_consume) + { + rx_buf[rx_produce] = uart_rxtx_read(); + rx_produce = rx_produce_next; + } + + uart_ev_pending_write(UART_EV_RX); + } + } + + if ((stat & UART_EV_TX) != 0) + { + uart_ev_pending_write(UART_EV_TX); + while ((tx_consume != tx_produce) && !uart_txfull_read()) + { + uart_rxtx_write(tx_buf[tx_consume]); + tx_consume = (tx_consume + 1) & UART_RINGBUFFER_MASK_TX; + } + } + + return OK; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: uart_read + * + * Do not use in interrupt handlers! + * + ****************************************************************************/ + +char uart_read(void) +{ + char c; + + if (irq_getie()) + { + while (rx_consume == rx_produce); + } + else if (rx_consume == rx_produce) + { + return 0; + } + + c = rx_buf[rx_consume]; + rx_consume = (rx_consume + 1) & UART_RINGBUFFER_MASK_RX; + return c; +} + +/**************************************************************************** + * Name: uart_read_nonblock + ****************************************************************************/ + +int uart_read_nonblock(void) +{ + return (rx_consume != rx_produce); +} + +/**************************************************************************** + * Name: up_putc + ****************************************************************************/ + +int up_putc(int ch) +{ + unsigned int oldmask; + unsigned int tx_produce_next = (tx_produce + 1) & UART_RINGBUFFER_MASK_TX; + + if (irq_getie()) + { + while (tx_produce_next == tx_consume); + } + else if (tx_produce_next == tx_consume) + { + return ch; + } + + oldmask = irq_getmask(); + irq_setmask(oldmask & ~(1 << UART_INTERRUPT)); + + if ((tx_consume != tx_produce) || uart_txfull_read()) + { + tx_buf[tx_produce] = ch; + tx_produce = tx_produce_next; + } + else + { + uart_rxtx_write(ch); + } + + irq_setmask(oldmask); + return ch; +} + +/**************************************************************************** + * Name: uart_init + ****************************************************************************/ + +void uart_init(void) +{ + rx_produce = 0; + rx_consume = 0; + + tx_produce = 0; + tx_consume = 0; + + uart_ev_pending_write(uart_ev_pending_read()); + uart_ev_enable_write(UART_EV_TX | UART_EV_RX); + irq_setmask(irq_getmask() | (1 << UART_INTERRUPT)); + + irq_attach(1 << UART_INTERRUPT, uart_interrupt); +} + +/**************************************************************************** + * Name: uart_sync + ****************************************************************************/ + +void uart_sync(void) +{ + while (tx_consume != tx_produce); +} diff --git a/arch/misoc/src/common/misoc_uart.h b/arch/misoc/src/common/misoc_uart.h new file mode 100644 index 00000000000..74fcc7c0acf --- /dev/null +++ b/arch/misoc/src/common/misoc_uart.h @@ -0,0 +1,60 @@ +/**************************************************************************** + * arch/misoc/src/common/misoc_uart.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __ARCH_MISOC_SRC_COMMON_MISOC_UART_H +#define __ARCH_MISOC_SRC_COMMON_MISOC_UART_H 1 + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#ifdef __cplusplus +extern "C" +{ +#endif + +void uart_init(void); +void uart_isr(void); +void uart_sync(void); + +void uart_write(char c); +char uart_read(void); +int uart_read_nonblock(void); + +#ifdef __cplusplus +} +#endif + +#endif /* __ARCH_MISOC_SRC_COMMON_MISOC_UART_H */ diff --git a/arch/misoc/src/common/misoc_udelay.c b/arch/misoc/src/common/misoc_udelay.c new file mode 100644 index 00000000000..42bbc1f95ae --- /dev/null +++ b/arch/misoc/src/common/misoc_udelay.c @@ -0,0 +1,117 @@ +/**************************************************************************** + * arch/misoc/src/common/up_udelay.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#define CONFIG_BOARD_LOOPSPER100USEC ((CONFIG_BOARD_LOOPSPERMSEC+5)/10) +#define CONFIG_BOARD_LOOPSPER10USEC ((CONFIG_BOARD_LOOPSPERMSEC+50)/100) +#define CONFIG_BOARD_LOOPSPERUSEC ((CONFIG_BOARD_LOOPSPERMSEC+500)/1000) + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_udelay + * + * Description: + * Delay inline for the requested number of microseconds. NOTE: Because + * of all of the setup, several microseconds will be lost before the actual + * timing looop begins. Thus, the delay will always be a few microseconds + * longer than requested. + * + * *** NOT multi-tasking friendly *** + * + * ASSUMPTIONS: + * The setting CONFIG_BOARD_LOOPSPERMSEC has been calibrated + * + ****************************************************************************/ + +void up_udelay(useconds_t microseconds) +{ + volatile int i; + + /* We'll do this a little at a time because we expect that the + * CONFIG_BOARD_LOOPSPERUSEC is very inaccurate during to truncation in + * the divisions of its calculation. We'll use the largest values that + * we can in order to prevent significant error buildup in the loops. + */ + + while (microseconds > 1000) + { + for (i = 0; i < CONFIG_BOARD_LOOPSPERMSEC; i++) + { + } + + microseconds -= 1000; + } + + while (microseconds > 100) + { + for (i = 0; i < CONFIG_BOARD_LOOPSPER100USEC; i++) + { + } + + microseconds -= 100; + } + + while (microseconds > 10) + { + for (i = 0; i < CONFIG_BOARD_LOOPSPER10USEC; i++) + { + } + + microseconds -= 10; + } + + while (microseconds > 0) + { + for (i = 0; i < CONFIG_BOARD_LOOPSPERUSEC; i++) + { + } + + microseconds--; + } +} diff --git a/arch/misoc/src/lm32/Kconfig b/arch/misoc/src/lm32/Kconfig new file mode 100644 index 00000000000..b9178978e75 --- /dev/null +++ b/arch/misoc/src/lm32/Kconfig @@ -0,0 +1,32 @@ +# +# For a description of the syntax of this configuration file, +# see the file kconfig-language.txt in the NuttX tools repository. +# + +if ARCH_CHIP_LM32 + +choice + prompt "Toolchain Selection" + default LM32_TOOLCHAIN_GNUW if HOST_WINDOWS + default LM32_TOOLCHAIN_GNUL if !HOST_WINDOWS + +config LM32_TOOLCHAIN_BUILDROOT + bool "Buildroot (Cygwin or Linux)" + depends on !WINDOWS_NATIVE + +config LM32_TOOLCHAIN_GNUL + bool "Generic GNU toolchain under Linux (or other POSIX environment)" + ---help--- + This option should work for any modern GNU toolchain (GCC 4.5 or newer) + configured for lm32-elf-. + +config LM32_TOOLCHAIN_GNUW + bool "Generic GNU toolchain under Windows" + depends on HOST_WINDOWS + ---help--- + This option should work for any modern GNU toolchain (GCC 4.5 or newer) + configured for lm32-elf-. + +endchoice # Toolchain Selection + +endif # ARCH_CHIP_LM32 diff --git a/arch/misoc/src/lm32/Make.defs b/arch/misoc/src/lm32/Make.defs new file mode 100644 index 00000000000..9c0768b2a4f --- /dev/null +++ b/arch/misoc/src/lm32/Make.defs @@ -0,0 +1,51 @@ +############################################################################ +# arch/misoc/src/Makefile +# +# Copyright (C) 2016 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt +# Ramtin Amin +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# 3. Neither the name NuttX nor the names of its contributors may be +# used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# +############################################################################ + +HEAD_ASRC = lm32_vectors.S + +CMN_ASRCS = +CMN_CSRCS = misoc_lowputs.c misoc_serial.c misoc_mdelay.c +CMN_CSRCS += misoc_modifyreg8.c misoc_modifyreg16.c misoc_modifyreg32.c +CMN_CSRCS += misoc_puts.c misoc_udelay.c + +CHIP_ASRCS = lm32_syscall.S + +CHIP_CSRCS = lm32_allocateheap.c lm32_assert.c lm32_blocktask.c +CHIP_CSRCS += lm32_copystate.c lm32_createstack.c lm32_decodeirq.c +CHIP_CSRCS += lm32_doirq.c lm32_dumpstate.c lm32_exit.c lm32_idle.c +CHIP_CSRCS += lm32_initialize.c lm32_initialstate.c lm32_interruptcontext.c +CHIP_CSRCS += lm32_irq.c lm32_releasepending.c lm32_releasestack.c +CHIP_CSRCS += lm32_stackframe.c lm32_swint.c lm32_unblocktask.c diff --git a/arch/misoc/src/lm32/Toolchain.defs b/arch/misoc/src/lm32/Toolchain.defs new file mode 100644 index 00000000000..f59fa1ab45e --- /dev/null +++ b/arch/misoc/src/lm32/Toolchain.defs @@ -0,0 +1,104 @@ +############################################################################ +# arch/misco/src/lm32/Toolchain.defs +# +# Copyright (C) 2016 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# 3. Neither the name NuttX nor the names of its contributors may be +# used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# +############################################################################ + +# Setup for the selected toolchain + +# +# Select and allow the selected toolchain to be overridden by a command-line +#selection. +# + +ifeq ($(filter y, \ + $(CONFIG_LM32_TOOLCHAIN_BUILDROOT) \ + ),y) + CONFIG_LM32_TOOLCHAIN ?= BUILDROOT +endif + +ifeq ($(filter y, \ + $(CONFIG_LM32_TOOLCHAIN_GNUL) \ + ),y) + CONFIG_LM32_TOOLCHAIN ?= GNUL +endif + +ifeq ($(filter y, \ + $(CONFIG_LM32_TOOLCHAIN_GNUW) \ + ),y) + CONFIG_LM32_TOOLCHAIN ?= GNUW +endif + +# +# Supported toolchains +# +# Each toolchain definition should set: +# +# CROSSDEV The GNU toolchain triple (command prefix) +# ARCROSSDEV If required, an alternative prefix used when +# invoking ar and nm. +# ARCHCPUFLAGS CPU-specific flags selecting the instruction set +# FPU options, etc. +# MAXOPTIMIZATION The maximum optimization level that results in +# reliable code generation. +# + +ifeq ($(CONFIG_DEBUG_CUSTOMOPT),y) + MAXOPTIMIZATION := $(CONFIG_DEBUG_OPTLEVEL) +endif + +# NuttX buildroot under Linux or Cygwin + +ifeq ($(CONFIG_LM32_TOOLCHAIN),BUILDROOT) + CROSSDEV ?= lm32-nuttx-elf- + ARCROSSDEV ?= lm32-nuttx-elf- + MAXOPTIMIZATION ?= -Os +endif + +# Generic GNU toolchain on OS X, Linux or any typical Posix system + +ifeq ($(CONFIG_LM32_TOOLCHAIN),GNUL) + CROSSDEV ?= lm32-elf- + ARCROSSDEV ?= lm32-elf- + MAXOPTIMIZATION ?= -Os +endif + +# Generic GNU toolchain under Windows (native) + +ifeq ($(CONFIG_LM32_TOOLCHAIN),GNUW) + CROSSDEV ?= lm32-elf-- + ARCROSSDEV ?= lm32-elf-- + MAXOPTIMIZATION ?= -Os + ifeq ($(CONFIG_WINDOWS_CYGWIN),y) + WINTOOL = y + endif +endif diff --git a/arch/misoc/src/lm32/chip.h b/arch/misoc/src/lm32/chip.h new file mode 100644 index 00000000000..78d671f7f94 --- /dev/null +++ b/arch/misoc/src/lm32/chip.h @@ -0,0 +1,95 @@ +/**************************************************************************** + * arch/misoc/src/lm32/chip.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __ARCH_MISOC_SRC_LM32_CHIP_H +#define __ARCH_MISOC_SRC_LM32_CHIP_H 1 + +/**************************************************************************** + * Inline Functions + ****************************************************************************/ + +#include "lm32.h" + +/**************************************************************************** + * Inline Functions + ****************************************************************************/ + +#ifdef __cplusplus +extern "C" +{ +#endif + +static inline unsigned int irq_getie(void) +{ + unsigned int ie; + __asm__ __volatile__("rcsr %0, IE" : "=r" (ie)); + return ie; +} + +static inline void irq_setie(unsigned int ie) +{ + __asm__ __volatile__("wcsr IE, %0" : : "r" (ie)); +} + +static inline unsigned int irq_getmask(void) +{ + + unsigned int mask; + __asm__ __volatile__("rcsr %0, IM" : "=r" (mask)); + return mask; +} + +static inline void irq_setmask(unsigned int mask) +{ + __asm__ __volatile__("wcsr IM, %0" : : "r" (mask)); +} + +static inline unsigned int irq_pending(void) +{ + + unsigned int pending; + __asm__ __volatile__("rcsr %0, IP" : "=r" (pending)); + return pending; +} + +#ifdef __cplusplus +} +#endif + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#endif /* __ARCH_MISOC_SRC_LM32_CHIP_H */ diff --git a/arch/misoc/src/lm32/lm32.h b/arch/misoc/src/lm32/lm32.h new file mode 100644 index 00000000000..eac1fe76516 --- /dev/null +++ b/arch/misoc/src/lm32/lm32.h @@ -0,0 +1,156 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __ARCH_MISOC_SRC_LM32_LM32_H +#define __ARCH_MISOC_SRC_LM32_LM32_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#ifndef __ASSEMBLY__ +# include +# include +# include +#endif + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* This is the value used to mark the stack for subsequent stack monitoring + * logic. + */ + +#define STACK_COLOR 0xdeadbeef +#define INTSTACK_COLOR 0xdeadbeef +#define HEAP_COLOR 'h' + +/* In the LM32 model, the state is copied from the stack to the TCB, but + * only a referenced is passed to get the state from the TCB. + */ + +#define up_savestate(regs) lm32_copystate(regs, (uint32_t*)g_current_regs) +#define up_restorestate(regs) (g_current_regs = regs) + +/* Determine which (if any) console driver to use. If a console is enabled + * and no other console device is specified, then a serial console is + * assumed. + */ + +#if !defined(CONFIG_DEV_CONSOLE) || CONFIG_NFILE_DESCRIPTORS <= 0 +# undef USE_SERIALDRIVER +# undef USE_EARLYSERIALINIT +# undef CONFIG_DEV_LOWCONSOLE +# undef CONFIG_RAMLOG_CONSOLE +#else +# if defined(CONFIG_RAMLOG_CONSOLE) +# undef USE_SERIALDRIVER +# undef USE_EARLYSERIALINIT +# undef CONFIG_DEV_LOWCONSOLE +# elif defined(CONFIG_DEV_LOWCONSOLE) +# undef USE_SERIALDRIVER +# undef USE_EARLYSERIALINIT +# else +# define USE_SERIALDRIVER 1 +# define USE_EARLYSERIALINIT 1 +# endif +#endif + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +extern volatile uint32_t *g_current_regs; +extern uint32_t g_idle_topstack; + +/**************************************************************************** + * Inline Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/* Low level initialization provided by board-level logic ******************/ + +void lm32_board_initialize(void); + +/* Memory allocation ********************************************************/ + +#if CONFIG_MM_REGIONS > 1 +void lm32_add_region(void); +#endif + +/* Context switching ********************************************************/ + +void lm32_copystate(uint32_t *dest, uint32_t *src); + +/* IRQ initialization *******************************************************/ + +void lm32_irq_initialize(void); + +/* Interrupt decode *********************************************************/ + +uint32_t *lm32_decodeirq(uint32_t intstat, uint32_t *regs); +uint32_t *lm32_doirq(int irq, uint32_t *regs); + +/* Software interrupts ******************************************************/ + +int lm32_swint(int irq, FAR void *context); + +/* System timer *************************************************************/ + +void lm32_timer_initialize(void); + +/* Signal handling **********************************************************/ + +void lm32_sigdeliver(void); + +/* Debug ********************************************************************/ + +void lm32_dumpstate(void); + +#endif /* __ASSEMBLY__ */ +#endif /* __ARCH_MISOC_SRC_LM32_LM32_H */ diff --git a/arch/misoc/src/lm32/lm32_allocateheap.c b/arch/misoc/src/lm32/lm32_allocateheap.c new file mode 100644 index 00000000000..882bed891aa --- /dev/null +++ b/arch/misoc/src/lm32/lm32_allocateheap.c @@ -0,0 +1,104 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_allocateheap.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include +#include +#include + +#include "lm32.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_allocate_heap + * + * Description: + * This function will be called to dynamically set aside the heap region. + * + * For the kernel build (CONFIG_BUILD_KERNEL=y) with both kernel- and + * user-space heaps (CONFIG_MM_KERNEL_HEAP=y), this function provides the + * size of the unprotected, user-space heap. + * + * If a protected kernel-space heap is provided, the kernel heap must be + * allocated (and protected) by an analogous up_allocate_kheap(). + * + ****************************************************************************/ + +void up_allocate_heap(FAR void **heap_start, size_t *heap_size) +{ + board_autoled_on(LED_HEAPALLOCATE); + *heap_start = (FAR void *)g_idle_topstack; + *heap_size = CONFIG_RAM_END - g_idle_topstack; +} + +/**************************************************************************** + * Name: lm32_add_region + * + * Description: + * Memory may be added in non-contiguous chunks. Additional chunks are + * added by calling this function. + * + ****************************************************************************/ + +#if CONFIG_MM_REGIONS > 1 +void lm32_add_region(void) +{ +#warning Missing logic +} +#endif diff --git a/arch/misoc/src/lm32/lm32_assert.c b/arch/misoc/src/lm32/lm32_assert.c new file mode 100644 index 00000000000..78e7d2b6680 --- /dev/null +++ b/arch/misoc/src/lm32/lm32_assert.c @@ -0,0 +1,162 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_assert.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include +#include + +#include +#include +#include +#include + +#include + +#include "sched/sched.h" +#include "lm32.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* USB trace dumping */ + +#ifndef CONFIG_USBDEV_TRACE +# undef CONFIG_ARCH_USBDUMP +#endif + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: _up_assert + ****************************************************************************/ + +static void _up_assert(int errorcode) noreturn_function; +static void _up_assert(int errorcode) +{ + /* Are we in an interrupt handler or the idle task? */ + + if (g_current_regs || this_task()->pid == 0) + { + (void)up_irq_save(); + for (; ; ) + { +#ifdef CONFIG_ARCH_LEDS + board_autoled_on(LED_PANIC); + up_mdelay(250); + board_autoled_off(LED_PANIC); + up_mdelay(250); +#endif + } + } + else + { + exit(errorcode); + } +} + +/**************************************************************************** + * Name: assert_tracecallback + ****************************************************************************/ + +#ifdef CONFIG_ARCH_USBDUMP +static int usbtrace_syslog(FAR const char *fmt, ...) +{ + va_list ap; + int ret; + + /* Let vsyslog do the real work */ + + va_start(ap, fmt); + ret = vsyslog(LOG_EMERG, fmt, ap); + va_end(ap); + return ret; +} + +static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg) +{ + usbtrace_trprintf(usbtrace_syslog, trace->event, trace->value); + return 0; +} +#endif + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_assert + ****************************************************************************/ + +void up_assert(const uint8_t *filename, int lineno) +{ +#if CONFIG_TASK_NAME_SIZE > 0 && defined(CONFIG_DEBUG_ALERT) + struct tcb_s *rtcb = this_task(); +#endif + + board_autoled_on(LED_ASSERTION); + +#if CONFIG_TASK_NAME_SIZE > 0 + _alert("Assertion failed at file:%s line: %d task: %s\n", + filename, lineno, rtcb->name); +#else + _alert("Assertion failed at file:%s line: %d\n", + filename, lineno); +#endif + + lm32_dumpstate(); + +#ifdef CONFIG_ARCH_USBDUMP + /* Dump USB trace data */ + + (void)usbtrace_enumerate(assert_tracecallback, NULL); +#endif + +#ifdef CONFIG_BOARD_CRASHDUMP + board_crashdump(up_getsp(), this_task(), filename, lineno); +#endif + + _up_assert(EXIT_FAILURE); +} diff --git a/arch/misoc/src/lm32/lm32_blocktask.c b/arch/misoc/src/lm32/lm32_blocktask.c new file mode 100644 index 00000000000..f313da11cca --- /dev/null +++ b/arch/misoc/src/lm32/lm32_blocktask.c @@ -0,0 +1,180 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_blocktask.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include +#include + +#include +#include + +#include "sched/sched.h" +#include "group/group.h" +#include "lm32.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_block_task + * + * Description: + * The currently executing task at the head of + * the ready to run list must be stopped. Save its context + * and move it to the inactive list specified by task_state. + * + * Inputs: + * tcb: Refers to a task in the ready-to-run list (normally + * the task at the head of the list). It most be + * stopped, its context saved and moved into one of the + * waiting task lists. It it was the task at the head + * of the ready-to-run list, then a context to the new + * ready to run task must be performed. + * task_state: Specifies which waiting task list should be + * hold the blocked task TCB. + * + ****************************************************************************/ + +void up_block_task(struct tcb_s *tcb, tstate_t task_state) +{ + struct tcb_s *rtcb = this_task(); + bool switch_needed; + + /* Verify that the context switch can be performed */ + + ASSERT((tcb->task_state >= FIRST_READY_TO_RUN_STATE) && + (tcb->task_state <= LAST_READY_TO_RUN_STATE)); + + /* Remove the tcb task from the ready-to-run list. If we + * are blocking the task at the head of the task list (the + * most likely case), then a context switch to the next + * ready-to-run task is needed. In this case, it should + * also be true that rtcb == tcb. + */ + + switch_needed = sched_removereadytorun(tcb); + + /* Add the task to the specified blocked task list */ + + sched_addblocked(tcb, (tstate_t)task_state); + + /* If there are any pending tasks, then add them to the ready-to-run + * task list now + */ + + if (g_pendingtasks.head) + { + switch_needed |= sched_mergepending(); + } + + /* Now, perform the context switch if one is needed */ + + if (switch_needed) + { + /* Update scheduler parameters */ + + sched_suspend_scheduler(rtcb); + + /* Are we in an interrupt handler? */ + + if (g_current_regs) + { + /* Yes, then we have to do things differently. + * Just copy the g_current_regs into the OLD rtcb. + */ + + up_savestate(rtcb->xcp.regs); + + /* Restore the exception context of the rtcb at the (new) head + * of the ready-to-run task list. + */ + + rtcb = this_task(); + + /* Reset scheduler parameters */ + + sched_resume_scheduler(rtcb); + + /* Then switch contexts. Any necessary address environment + * changes will be made when the interrupt returns. + */ + + up_restorestate(rtcb->xcp.regs); + } + + /* No, then we will need to perform the user context switch */ + + else + { + /* Get the context of the task at the head of the ready to + * run list. + */ + + struct tcb_s *nexttcb = this_task(); + +#ifdef CONFIG_ARCH_ADDRENV + /* Make sure that the address environment for the previously + * running task is closed down gracefully (data caches dump, + * MMU flushed) and set up the address environment for the new + * thread at the head of the ready-to-run list. + */ + + (void)group_addrenv(nexttcb); +#endif + /* Reset scheduler parameters */ + + sched_resume_scheduler(nexttcb); + + /* Then switch contexts */ + + up_switchcontext(rtcb->xcp.regs, nexttcb->xcp.regs); + + /* up_switchcontext forces a context switch to the task at the + * head of the ready-to-run list. It does not 'return' in the + * normal sense. When it does return, it is because the blocked + * task is again ready to run and has execution priority. + */ + } + } +} diff --git a/arch/misoc/src/lm32/lm32_config.h b/arch/misoc/src/lm32/lm32_config.h new file mode 100644 index 00000000000..5b0d5d9b03f --- /dev/null +++ b/arch/misoc/src/lm32/lm32_config.h @@ -0,0 +1,97 @@ +/************************************************************************************ + * arch/misoc/src/lm32/lm32_config.h + * + * Copyright (C) 2015 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Modified for LM32: + * + * Copyright (C) 2016 Ramin Amin. All rights reserved. + * Author: Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ************************************************************************************/ + +#ifndef __ARCH_MISOC_SRC_LM32_LM32_CONFIG_H +#define __ARCH_MISOC_SRC_LM32_LM32_CONFIG_H + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include + +#include +#include + +/************************************************************************************ + * Pre-processor Definitions + ************************************************************************************/ +/* UARTs ****************************************************************************/ + +/* Are any UARTs enabled? */ + +#undef HAVE_UART_DEVICE +#if defined(CONFIG_MISOC_UART1) || defined(CONFIG_MISOC_UART2) +# define HAVE_UART_DEVICE 1 +#endif + +/* Is there a serial console? There should be no more than one defined. It + * could be on any UARTn, n=1,.. CHIP_NUARTS + */ + +#if defined(CONFIG_UART1_SERIAL_CONSOLE) && defined(CONFIG_MISOC_UART1) +# undef CONFIG_UART2_SERIAL_CONSOLE +# define HAVE_SERIAL_CONSOLE 1 +#elif defined(CONFIG_UART2_SERIAL_CONSOLE) && defined(CONFIG_MISOC_UART2) +# undef CONFIG_UART1_SERIAL_CONSOLE +# define HAVE_SERIAL_CONSOLE 1 +#else +# undef CONFIG_UART1_SERIAL_CONSOLE +# undef CONFIG_UART2_SERIAL_CONSOLE +# undef HAVE_SERIAL_CONSOLE +#endif + +/************************************************************************************ + * Public Types + ************************************************************************************/ + +/************************************************************************************ + * Public Data + ************************************************************************************/ + +/************************************************************************************ + * Inline Functions + ************************************************************************************/ + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +#endif /* __ARCH_MISOC_SRC_LM32_LM32_CONFIG_H */ diff --git a/arch/misoc/src/lm32/lm32_copystate.c b/arch/misoc/src/lm32/lm32_copystate.c new file mode 100644 index 00000000000..b3afa387b85 --- /dev/null +++ b/arch/misoc/src/lm32/lm32_copystate.c @@ -0,0 +1,87 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_copystate.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include "lm32.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: lm32_copystate + ****************************************************************************/ + +/* A little faster than most memcpy's */ + +void lm32_copystate(uint32_t *dest, uint32_t *src) +{ + int i; + + /* In the LM32 model, the state is copied from the stack to the TCB, + * but only a reference is passed to get the state from the TCB. So the + * following check avoids copying the TCB save area onto itself: + */ + + if (src != dest) + { + for (i = 0; i < XCPTCONTEXT_REGS; i++) + { + *dest++ = *src++; + } + } +} + diff --git a/arch/misoc/src/lm32/lm32_createstack.c b/arch/misoc/src/lm32/lm32_createstack.c new file mode 100644 index 00000000000..31c7f242261 --- /dev/null +++ b/arch/misoc/src/lm32/lm32_createstack.c @@ -0,0 +1,214 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_createstack.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "lm32.h" + +/**************************************************************************** + * Pre-processor Macros + ****************************************************************************/ + +/* LM32 requires at least a 4-byte stack alignment. For floating point use, + * however, the stack must be aligned to 8-byte addresses. + */ + +#ifdef CONFIG_LIBC_FLOATINGPOINT +# define STACK_ALIGNMENT 8 +#else +# define STACK_ALIGNMENT 4 +#endif + +/* Stack alignment macros */ + +#define STACK_ALIGN_MASK (STACK_ALIGNMENT-1) +#define STACK_ALIGN_DOWN(a) ((a) & ~STACK_ALIGN_MASK) +#define STACK_ALIGN_UP(a) (((a) + STACK_ALIGN_MASK) & ~STACK_ALIGN_MASK) + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_create_stack + * + * Description: + * Allocate a stack for a new thread and setup up stack-related information + * in the TCB. + * + * The following TCB fields must be initialized by this function: + * + * - adj_stack_size: Stack size after adjustment for hardware, processor, + * etc. This value is retained only for debug purposes. + * - stack_alloc_ptr: Pointer to allocated stack + * - adj_stack_ptr: Adjusted stack_alloc_ptr for HW. The initial value of + * the stack pointer. + * + * Inputs: + * - tcb: The TCB of new task + * - stack_size: The requested stack size. At least this much + * must be allocated. + * - ttype: The thread type. This may be one of following (defined in + * include/nuttx/sched.h): + * + * TCB_FLAG_TTYPE_TASK Normal user task + * TCB_FLAG_TTYPE_PTHREAD User pthread + * TCB_FLAG_TTYPE_KERNEL Kernel thread + * + * This thread type is normally available in the flags field of the TCB, + * however, there are certain contexts where the TCB may not be fully + * initialized when up_create_stack is called. + * + * If CONFIG_BUILD_KERNEL is defined, then this thread type may affect + * how the stack is allocated. For example, kernel thread stacks should + * be allocated from protected kernel memory. Stacks for user tasks and + * threads must come from memory that is accessible to user code. + * + ****************************************************************************/ + +int up_create_stack(FAR struct tcb_s *tcb, size_t stack_size, uint8_t ttype) +{ + /* Is there already a stack allocated of a different size? Because of + * alignment issues, stack_size might erroneously appear to be of a + * different size. Fortunately, this is not a critical operation. + */ + + if (tcb->stack_alloc_ptr && tcb->adj_stack_size != stack_size) + { + /* Yes.. Release the old stack */ + + up_release_stack(tcb, ttype); + } + + /* Do we need to allocate a new stack? */ + + if (!tcb->stack_alloc_ptr) + { + /* Allocate the stack. If DEBUG is enabled (but not stack debug), + * then create a zeroed stack to make stack dumps easier to trace. + */ + +#if defined(CONFIG_BUILD_KERNEL) && defined(CONFIG_MM_KERNEL_HEAP) + /* Use the kernel allocator if this is a kernel thread */ + + if (ttype == TCB_FLAG_TTYPE_KERNEL) + { + tcb->stack_alloc_ptr = (uint32_t *)kmm_malloc(stack_size); + } + else +#endif + { + /* Use the user-space allocator if this is a task or pthread */ + + tcb->stack_alloc_ptr = (uint32_t *)kumm_malloc(stack_size); + } + +#ifdef CONFIG_DEBUG_FEATURES + /* Was the allocation successful? */ + + if (!tcb->stack_alloc_ptr) + { + serr("ERROR: Failed to allocate stack, size %d\n", stack_size); + } +#endif + } + + /* Did we successfully allocate a stack? */ + + if (tcb->stack_alloc_ptr) + { + size_t top_of_stack; + size_t size_of_stack; + + /* Yes.. If stack debug is enabled, then fill the stack with a + * recognizable value that we can use later to test for high + * water marks. + */ + +#ifdef CONFIG_STACK_COLORATION + memset(tcb->stack_alloc_ptr, 0xaa, stack_size); +#endif + + /* LM32 uses a push-down stack: the stack grows toward lower + * addresses in memory. The stack pointer register points to the + * lowest, valid working address (the "top" of the stack). Items on + * the stack are referenced as positive word offsets from sp. + */ + + top_of_stack = (uint32_t)tcb->stack_alloc_ptr + stack_size - 4; + + /* The LM32 stack must be aligned at word (4 byte) boundaries; for + * floating point use, the stack must be aligned to 8-byte addresses. + * If necessary top_of_stack must be rounded down to the next + * boundary to meet these alignment requirements. + */ + + top_of_stack = STACK_ALIGN_DOWN(top_of_stack); + size_of_stack = top_of_stack - (uint32_t)tcb->stack_alloc_ptr + 4; + + /* Save the adjusted stack values in the struct tcb_s */ + + tcb->adj_stack_ptr = (FAR uint32_t *)top_of_stack; + tcb->adj_stack_size = size_of_stack; + + board_autoled_on(LED_STACKCREATED); + return OK; + } + + return ERROR; +} diff --git a/arch/misoc/src/lm32/lm32_decodeirq.c b/arch/misoc/src/lm32/lm32_decodeirq.c new file mode 100644 index 00000000000..1cb792cedf4 --- /dev/null +++ b/arch/misoc/src/lm32/lm32_decodeirq.c @@ -0,0 +1,106 @@ +/******************************************************************************** + * arch/misoc/src/lm32/lm32_decodeirq.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ********************************************************************************/ + +/******************************************************************************** + * Included Files + ********************************************************************************/ + +#include + +#include +#include + +#include + +#include "chip.h" +#include "lm32.h" + +/******************************************************************************** + * Public Functions + ********************************************************************************/ + +/**************************************************************************** + * Name: lm32_decodeirq + * + * Description: + * This function is called from the IRQ vector handler in lm32_vectors.S. + * At this point, the interrupt has been taken and the registers have + * been saved on the stack. This function simply needs to determine the + * the irq number of the interrupt and then to call lm32_doirq to dispatch + * the interrupt. + * + * Input parameters: + * regs - A pointer to the register save area on the stack. + * + ****************************************************************************/ + +uint32_t *lm32_decodeirq(uint32_t intstat, uint32_t *regs) +{ + int irq; + + irqinfo("intstat=%08lx\n", (unsigned long)intstat); + + /* Decode and dispatch interrupts */ + + for (irq = 0; irq < MISOC_NINTERRUPTS && intstat != 0; irq++) + { + uint32_t bit = (1 << irq); + + /* Is this interrupt pending? */ + + if ((intstat & bit) != 0) + { + /* Yes.. Dispatch the interrupt */ + /* REVIST: Do I need to acknowledge the interrupt first? */ + + irqinfo("irq=%d\n", irq); + regs = lm32_doirq(irq, regs); + + /* Clear the bit in the interrupt status copy so that maybe we can + * break out of the loop early. + */ + + intstat &= ~bit; + } + } + + /* Return the final task register save area. This will typically be the + * same as the value of regs on input. In the event of a context switch, + * however, it will differ. It will refere to the register save are in the + * TCB of the new thread. + */ + + return regs; +} diff --git a/arch/misoc/src/lm32/lm32_doirq.c b/arch/misoc/src/lm32/lm32_doirq.c new file mode 100644 index 00000000000..cf42f4e6997 --- /dev/null +++ b/arch/misoc/src/lm32/lm32_doirq.c @@ -0,0 +1,131 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_doirq.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include + +#include +#include +#include + +#include +#include + +#include "group/group.h" +#include "lm32.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +uint32_t *lm32_doirq(int irq, uint32_t *regs) +{ + board_autoled_on(LED_INIRQ); + + /* Current regs non-zero indicates that we are processing an interrupt; + * g_current_regs is also used to manage interrupt level context switches. + * + * Nested interrupts are not supported + */ + + DEBUGASSERT(g_current_regs == NULL); + g_current_regs = regs; + + /* Disable further occurrences of this interrupt (until the interrupt sources + * have been clear by the driver). + */ + + up_disable_irq(irq); + + /* Deliver the IRQ */ + + irq_dispatch(irq, regs); + +#if defined(CONFIG_ARCH_FPU) || defined(CONFIG_ARCH_ADDRENV) + /* Check for a context switch. If a context switch occurred, then + * g_current_regs will have a different value than it did on entry. If an + * interrupt level context switch has occurred, then restore the floating + * point state and the establish the correct address environment before + * returning from the interrupt. + */ + + if (regs != g_current_regs) + { +#ifdef CONFIG_ARCH_FPU + /* Restore floating point registers */ + + up_restorefpu((uint32_t *)g_current_regs); +#endif + +#ifdef CONFIG_ARCH_ADDRENV + /* Make sure that the address environment for the previously + * running task is closed down gracefully (data caches dump, + * MMU flushed) and set up the address environment for the new + * thread at the head of the ready-to-run list. + */ + + (void)group_addrenv(NULL); +#endif + } +#endif + + /* If a context switch occurred while processing the interrupt then + * g_current_regs may have change value. If we return any value different + * from the input regs, then the lower level will know that a context + * switch occurred during interrupt processing. + */ + + regs = (uint32_t *)g_current_regs; + + /* Set g_current_regs to NULL to indicate that we are no longer in an + * interrupt handler. + */ + + g_current_regs = NULL; + + /* Unmask the last interrupt (global interrupts are still disabled) */ + + up_enable_irq(irq); + board_autoled_off(LED_INIRQ); + return regs; +} diff --git a/arch/misoc/src/lm32/lm32_dumpstate.c b/arch/misoc/src/lm32/lm32_dumpstate.c new file mode 100644 index 00000000000..229aee8bfd2 --- /dev/null +++ b/arch/misoc/src/lm32/lm32_dumpstate.c @@ -0,0 +1,222 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_dumpstate.c + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include +#include + +#include +#include +#include + +#include "sched/sched.h" +#include "lm32.h" + +#ifdef CONFIG_ARCH_STACKDUMP + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_getsp + ****************************************************************************/ + +static inline uint32_t up_getsp(void) +{ + register uint32_t sp; + + __asm__ __volatile__("addi %0, sp, 0" : "=r" (sp)); + + return sp; +} + +/**************************************************************************** + * Name: up_stackdump + ****************************************************************************/ + +static void up_stackdump(uint32_t sp, uint32_t stack_base) +{ + uint32_t stack ; + + for (stack = sp & ~0x1f; stack < stack_base; stack += 32) + { + uint32_t *ptr = (uint32_t *)stack; + _alert("%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", + stack, ptr[0], ptr[1], ptr[2], ptr[3], + ptr[4], ptr[5], ptr[6], ptr[7]); + } +} + +/**************************************************************************** + * Name: up_registerdump + ****************************************************************************/ + +static inline void up_registerdump(void) +{ + /* Are user registers available from interrupt processing? */ + + if (g_current_regs) + { + _alert("EPC:%08x \n", + g_current_regs[REG_EPC]); + _alert(" X0:%08x A0:%08x A1:%08x A2:%08x A3:%08x A4:%08x A5:%08x A6:%08x\n", + g_current_regs[REG_X0_NDX], g_current_regs[REG_X1_NDX], + g_current_regs[REG_X2_NDX], g_current_regs[REG_X3_NDX], + g_current_regs[REG_X4_NDX], g_current_regs[REG_X5_NDX], + g_current_regs[REG_X6_NDX], g_current_regs[REG_X7_NDX]); + _alert(" A7:%08x X9:%08x X10:%08x X11:%08x X12:%08x X13:%08x X14:%08x X15:%08x\n", + g_current_regs[REG_X8_NDX], g_current_regs[REG_X9_NDX], + g_current_regs[REG_X10_NDX], g_current_regs[REG_X11_NDX], + g_current_regs[REG_X12_NDX], g_current_regs[REG_X13_NDX], + g_current_regs[REG_X14_NDX], g_current_regs[REG_X15_NDX]); + _alert("X16:%08x X17:%08x X18:%08x X19:%08x X20:%08x X21:%08x X22:%08x X23:%08x\n", + g_current_regs[REG_X16_NDX], g_current_regs[REG_X17_NDX], + g_current_regs[REG_X18_NDX], g_current_regs[REG_X19_NDX], + g_current_regs[REG_X20_NDX], g_current_regs[REG_X21_NDX], + g_current_regs[REG_X22_NDX], g_current_regs[REG_X23_NDX]); + _alert("X24:%08x X25:%08x GP:%08x FP:%08x SP:%08x RA:%08x EA:%08x BA:%08x\n", + g_current_regs[REG_X24_NDX], g_current_regs[REG_X25_NDX], + g_current_regs[REG_X26_NDX], g_current_regs[REG_X27_NDX], + g_current_regs[REG_X28_NDX], g_current_regs[REG_X29_NDX], + g_current_regs[REG_X30_NDX], g_current_regs[REG_X31_NDX]); + _alert(" IE:%08x\n", + g_current_regs[REG_X32_NDX]); + } +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: lm32_dumpstate + ****************************************************************************/ + +void lm32_dumpstate(void) +{ + struct tcb_s *rtcb = this_task(); + uint32_t sp = up_getsp(); + uint32_t ustackbase; + uint32_t ustacksize; +#if CONFIG_ARCH_INTERRUPTSTACK > 3 + uint32_t istackbase; + uint32_t istacksize; +#endif + + /* Get the limits on the user stack memory */ + + if (rtcb->pid == 0) + { + ustackbase = g_idle_topstack - 4; + ustacksize = CONFIG_IDLETHREAD_STACKSIZE; + } + else + { + ustackbase = (uint32_t)rtcb->adj_stack_ptr; + ustacksize = (uint32_t)rtcb->adj_stack_size; + } + + /* Get the limits on the interrupt stack memory */ + +#if CONFIG_ARCH_INTERRUPTSTACK > 3 + istackbase = (uint32_t)&g_intstackbase; + istacksize = (CONFIG_ARCH_INTERRUPTSTACK & ~3) - 4; + + /* Show interrupt stack info */ + + _alert("sp: %08x\n", sp); + _alert("IRQ stack:\n"); + _alert(" base: %08x\n", istackbase); + _alert(" size: %08x\n", istacksize); + + /* Does the current stack pointer lie within the interrupt + * stack? + */ + + if (sp <= istackbase && sp > istackbase - istacksize) + { + /* Yes.. dump the interrupt stack */ + + up_stackdump(sp, istackbase); + + /* Extract the user stack pointer which should lie + * at the base of the interrupt stack. + */ + + sp = g_intstackbase; + _alert("sp: %08x\n", sp); + } + + /* Show user stack info */ + + _alert("User stack:\n"); + _alert(" base: %08x\n", ustackbase); + _alert(" size: %08x\n", ustacksize); +#else + _alert("sp: %08x\n", sp); + _alert("stack base: %08x\n", ustackbase); + _alert("stack size: %08x\n", ustacksize); +#endif + + /* Dump the user stack if the stack pointer lies within the allocated user + * stack memory. + */ + + if (sp > ustackbase || sp <= ustackbase - ustacksize) + { +#if !defined(CONFIG_ARCH_INTERRUPTSTACK) || CONFIG_ARCH_INTERRUPTSTACK < 4 + _alert("ERROR: Stack pointer is not within allocated stack\n"); +#endif + } + else + { + up_stackdump(sp, ustackbase); + } + + /* Then dump the registers (if available) */ + + up_registerdump(); +} + +#endif /* CONFIG_ARCH_STACKDUMP */ diff --git a/arch/misoc/src/lm32/lm32_exit.c b/arch/misoc/src/lm32/lm32_exit.c new file mode 100644 index 00000000000..688f0854263 --- /dev/null +++ b/arch/misoc/src/lm32/lm32_exit.c @@ -0,0 +1,82 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_exit.c + * + * Copyright (C) 2010, 2013-2014 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include + +#ifdef CONFIG_DUMP_ON_EXIT +# include +#endif + +#include "task/task.h" +#include "sched/sched.h" +#include "group/group.h" +#include "lm32.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: _exit + * + * Description: + * This function causes the currently executing task to cease + * to exist. This is a special case of task_delete() where the task to + * be deleted is the currently executing task. It is more complex because + * a context switch must be perform to the next ready to run task. + * + ****************************************************************************/ + +void _exit(int status) +{ +#warning Missing logic +} diff --git a/arch/misoc/src/lm32/lm32_idle.c b/arch/misoc/src/lm32/lm32_idle.c new file mode 100644 index 00000000000..5b85bcc0c03 --- /dev/null +++ b/arch/misoc/src/lm32/lm32_idle.c @@ -0,0 +1,96 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_idle.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include +#include + +#include "lm32.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_idle + * + * Description: + * up_idle() is the logic that will be executed when their is no other + * ready-to-run task. This is processor idle time and will continue until + * some interrupt occurs to cause a context switch from the idle task. + * + * Processing in this state may be processor-specific. e.g., this is where + * power management operations might be performed. + * + ****************************************************************************/ + +void up_idle(void) +{ +#if defined(CONFIG_SUPPRESS_INTERRUPTS) || defined(CONFIG_SUPPRESS_TIMER_INTS) + /* If the system is idle and there are no timer interrupts, then process + * "fake" timer interrupts. Hopefully, something will wake up. + */ + + sched_process_timer(); +#else + + /* This would be an appropriate place to put some MCU-specific logic to + * sleep in a reduced power mode until an interrupt occurs to save power + */ + + /* This is a kludge that I still don't understand. The call to kmm_trysemaphore() + * in the os_start.c IDLE loop seems necessary for the good health of the IDLE + * loop. When the work queue is enabled, this logic is removed from the IDLE + * loop and it appears that we are somehow left idling with interrupts non- + * functional. The following should be no-op, it just disables then re-enables + * interrupts. But it fixes the problem and will stay here until I understand + * the problem/fix better. + * + * And no, the contents of the CP0 status register are not incorrect. But for + * some reason the status register needs to be re-written again on this thread + * for it to take effect. This might be a PIC32-only issue? + */ + +#ifdef CONFIG_SCHED_WORKQUEUE + irqstate_t flags = enter_critical_section(); + leave_critical_section(flags); +#endif +#endif +} diff --git a/arch/misoc/src/lm32/lm32_initialize.c b/arch/misoc/src/lm32/lm32_initialize.c new file mode 100644 index 00000000000..23e6e8fc1f0 --- /dev/null +++ b/arch/misoc/src/lm32/lm32_initialize.c @@ -0,0 +1,78 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_initialize.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "misoc.h" +#include "lm32.h" + +/**************************************************************************** + * Public Functionis + ****************************************************************************/ + +void up_initialize(void) +{ + /* Initialize the System Timer */ + + lm32_irq_initialize(); + + /* Initialize the serial driver */ + +#warning REVISIT: Here you should all misoc_serial_initialize(). That initializes the entire serial driver, a part of the operation is the uart initialization. + + misoc_serial_initialize(); +} diff --git a/arch/misoc/src/lm32/lm32_initialstate.c b/arch/misoc/src/lm32/lm32_initialstate.c new file mode 100644 index 00000000000..6064e186c84 --- /dev/null +++ b/arch/misoc/src/lm32/lm32_initialstate.c @@ -0,0 +1,124 @@ +/**************************************************************************** + * arch/misoc/src/lm32/up_initialstate.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include + +#include +#include + +#include "lm32.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_initial_state + * + * Description: + * A new thread is being started and a new TCB + * has been created. This function is called to initialize + * the processor specific portions of the new TCB. + * + * This function must setup the intial architecture registers + * and/or stack so that execution will begin at tcb->start + * on the next context switch. + * + ****************************************************************************/ + +void up_initial_state(struct tcb_s *tcb) +{ + struct xcptcontext *xcp = &tcb->xcp; + + /* Initialize the initial exception register context structure */ + + memset(xcp, 0, sizeof(struct xcptcontext)); + + /* Save the initial stack pointer. Hmmm.. the stack is set to the very + * beginning of the stack region. Some functions may want to store data on + * the caller's stack and it might be good to reserve some space. However, + * only the start function would do that and we have control over that one + */ + + xcp->regs[REG_SP] = (uint32_t)tcb->adj_stack_ptr; + + /* Save the task entry point */ + + xcp->regs[REG_EPC] = (uint32_t)tcb->start; + + /* Initial state of IE: Interrupts enabled */ + + xcp->regs[REG_INT_CTX] = 1; + + /* If this task is running PIC, then set the PIC base register to the + * address of the allocated D-Space region. + */ + +#ifdef CONFIG_PIC +# warning "Missing logic" +#endif + + /* Set privileged- or unprivileged-mode, depending on how NuttX is + * configured and what kind of thread is being started. + * + * If the kernel build is not selected, then all threads run in + * privileged thread mode. + */ + +#ifdef CONFIG_BUILD_KERNEL +# warning "Missing logic" +#endif +} diff --git a/arch/misoc/src/lm32/lm32_interruptcontext.c b/arch/misoc/src/lm32/lm32_interruptcontext.c new file mode 100644 index 00000000000..8edd5538532 --- /dev/null +++ b/arch/misoc/src/lm32/lm32_interruptcontext.c @@ -0,0 +1,62 @@ +/**************************************************************************** + * arch/misoc/src/lm32/up_interruptcontext.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include "lm32.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_interrupt_context + * + * Description: Return true is we are currently executing in + * the interrupt handler context. + ****************************************************************************/ + +bool up_interrupt_context(void) +{ + return g_current_regs != NULL; +} diff --git a/arch/misoc/src/lm32/lm32_irq.c b/arch/misoc/src/lm32/lm32_irq.c new file mode 100644 index 00000000000..dab24189e66 --- /dev/null +++ b/arch/misoc/src/lm32/lm32_irq.c @@ -0,0 +1,165 @@ +/**************************************************************************** + * arch/misoc/src/lm32/_irq.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include +#include +#include + +#include +#include +#include + +#include "chip.h" +#include "lm32.h" + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +volatile uint32_t *g_current_regs; + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: lm32_irq_initialize + ****************************************************************************/ + +void lm32_irq_initialize(void) +{ + /* currents_regs is non-NULL only while processing an interrupt */ + + g_current_regs = NULL; + + /* Attach the software interrupt */ + + (void)irq_attach(MISOC_IRQ_SWINT, lm32_swint); + + /* Enable interrupts */ + + irq_setie(1); +} + +/**************************************************************************** + * Name: up_irq_save + * + * Description: + * + ****************************************************************************/ + +irqstate_t up_irq_save(void) +{ + irqstate_t flags; + + /* Get the previous value of IE */ + + flags = irq_getie(); + + /* Disable interrupts and return the previous interrupt state */ + + irq_setie(0); + return flags; +} + +/**************************************************************************** + * Name: up_irq_restore + * + * Description: + * + ****************************************************************************/ + +void up_irq_restore(irqstate_t flags) +{ + /* Restore the interrupt state returned by up_save_irq() */ + + irq_setie(flags); +} + +/**************************************************************************** + * Name: up_disable_irq + * + * Description: + * Disable the IRQ specified by 'irq' + * + ****************************************************************************/ + +void up_disable_irq(int irq) +{ + irqstate_t flags; + + DEBUGASSERT(irq >= 0 && irq < NR_IRQS); + + /* Ignore any attempt to disable software interrupts */ + + if (irq < MISOC_NINTERRUPTS) + { + /* Disable interrupts by clearing the bit that corresponds to the irq */ + + flags = irq_getmask(); + flags &= ~(1 << irq); + irq_setmask(flags); + } +} + +/**************************************************************************** + * Name: up_enable_irq + * + * Description: + * Enable the IRQ specified by 'irq' + * + ****************************************************************************/ + +void up_enable_irq(int irq) +{ + irqstate_t flags; + DEBUGASSERT(irq >= 0 && irq < NR_IRQS); + + /* Ignore any attempt to enable software interrupts */ + + if (irq < MISOC_NINTERRUPTS) + { + /* Enable interrupts by setting the bit that corresponds to the irq */ + + flags = irq_getmask(); + flags |= (1 << irq); + irq_setmask(flags); + } +} diff --git a/arch/misoc/src/lm32/lm32_releasepending.c b/arch/misoc/src/lm32/lm32_releasepending.c new file mode 100644 index 00000000000..e100dd96ccb --- /dev/null +++ b/arch/misoc/src/lm32/lm32_releasepending.c @@ -0,0 +1,149 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_releasepending.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include + +#include +#include + +#include "sched/sched.h" +#include "group/group.h" +#include "lm32.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_release_pending + * + * Description: + * Release and ready-to-run tasks that have + * collected in the pending task list. This can call a + * context switch if a new task is placed at the head of + * the ready to run list. + * + ****************************************************************************/ + +void up_release_pending(void) +{ + struct tcb_s *rtcb = this_task(); + + sinfo("From TCB=%p\n", rtcb); + + /* Merge the g_pendingtasks list into the ready-to-run task list */ + + /* sched_lock(); */ + if (sched_mergepending()) + { + /* The currently active task has changed! We will need to switch + * contexts. + * + * Update scheduler parameters. + */ + + sched_suspend_scheduler(rtcb); + + /* Are we operating in interrupt context? */ + + if (g_current_regs) + { + /* Yes, then we have to do things differently. + * Just copy the g_current_regs into the OLD rtcb. + */ + + up_savestate(rtcb->xcp.regs); + + /* Restore the exception context of the rtcb at the (new) head + * of the ready-to-run task list. + */ + + rtcb = this_task(); + + /* Update scheduler parameters */ + + sched_resume_scheduler(rtcb); + + /* Then switch contexts. Any necessary address environment + * changes will be made when the interrupt returns. + */ + + up_restorestate(rtcb->xcp.regs); + } + + /* No, then we will need to perform the user context switch */ + + else + { + /* Switch context to the context of the task at the head of the + * ready to run list. + */ + + struct tcb_s *nexttcb = this_task(); + +#ifdef CONFIG_ARCH_ADDRENV + /* Make sure that the address environment for the previously + * running task is closed down gracefully (data caches dump, + * MMU flushed) and set up the address environment for the new + * thread at the head of the ready-to-run list. + */ + + (void)group_addrenv(nexttcb); +#endif + /* Update scheduler parameters */ + + sched_resume_scheduler(nexttcb); + + /* Then switch contexts */ + + up_switchcontext(rtcb->xcp.regs, nexttcb->xcp.regs); + + /* up_switchcontext forces a context switch to the task at the + * head of the ready-to-run list. It does not 'return' in the + * normal sense. When it does return, it is because the blocked + * task is again ready to run and has execution priority. + */ + } + } +} diff --git a/arch/misoc/src/lm32/lm32_releasestack.c b/arch/misoc/src/lm32/lm32_releasestack.c new file mode 100644 index 00000000000..fa88500bf9d --- /dev/null +++ b/arch/misoc/src/lm32/lm32_releasestack.c @@ -0,0 +1,115 @@ +/**************************************************************************** + * arch/misoc/src/lm32/up_releasestack.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include +#include + +#include "lm32.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_release_stack + * + * Description: + * A task has been stopped. Free all stack related resources retained in + * the defunct TCB. + * + * Input Parmeters + * - dtcb: The TCB containing information about the stack to be released + * - ttype: The thread type. This may be one of following (defined in + * include/nuttx/sched.h): + * + * TCB_FLAG_TTYPE_TASK Normal user task + * TCB_FLAG_TTYPE_PTHREAD User pthread + * TCB_FLAG_TTYPE_KERNEL Kernel thread + * + * This thread type is normally available in the flags field of the TCB, + * however, there are certain error recovery contexts where the TCB may + * not be fully initialized when up_release_stack is called. + * + * If CONFIG_BUILD_KERNEL is defined, then this thread type may affect + * how the stack is freed. For example, kernel thread stacks may have + * been allocated from protected kernel memory. Stacks for user tasks + * and threads must have come from memory that is accessible to user + * code. + * + * Returned Value: + * None + * + ****************************************************************************/ + +void up_release_stack(FAR struct tcb_s *dtcb, uint8_t ttype) +{ + /* Is there a stack allocated? */ + + if (dtcb->stack_alloc_ptr) + { +#if defined(CONFIG_BUILD_KERNEL) && defined(CONFIG_MM_KERNEL_HEAP) + /* Use the kernel allocator if this is a kernel thread */ + + if (ttype == TCB_FLAG_TTYPE_KERNEL) + { + sched_kfree(dtcb->stack_alloc_ptr); + } + else +#endif + { + /* Use the user-space allocator if this is a task or pthread */ + + sched_ufree(dtcb->stack_alloc_ptr); + } + + /* Mark the stack freed */ + + dtcb->stack_alloc_ptr = NULL; + } + + /* The size of the allocated stack is now zero */ + + dtcb->adj_stack_size = 0; +} diff --git a/arch/misoc/src/lm32/lm32_stackframe.c b/arch/misoc/src/lm32/lm32_stackframe.c new file mode 100644 index 00000000000..981c655f81f --- /dev/null +++ b/arch/misoc/src/lm32/lm32_stackframe.c @@ -0,0 +1,136 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_stackframe.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include +#include + +#include + +#include "lm32.h" + +/**************************************************************************** + * Pre-processor Macros + ****************************************************************************/ + +/* LM32 requires at least a 4-byte stack alignment. For floating point use, + * however, the stack must be aligned to 8-byte addresses. + */ + +#ifdef CONFIG_LIBC_FLOATINGPOINT +# define STACK_ALIGNMENT 8 +#else +# define STACK_ALIGNMENT 4 +#endif + +/* Stack alignment macros */ + +#define STACK_ALIGN_MASK (STACK_ALIGNMENT-1) +#define STACK_ALIGN_DOWN(a) ((a) & ~STACK_ALIGN_MASK) +#define STACK_ALIGN_UP(a) (((a) + STACK_ALIGN_MASK) & ~STACK_ALIGN_MASK) + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_stack_frame + * + * Description: + * Allocate a stack frame in the TCB's stack to hold thread-specific data. + * This function may be called anytime after up_create_stack() or + * up_use_stack() have been called but before the task has been started. + * + * Thread data may be kept in the stack (instead of in the TCB) if it is + * accessed by the user code directly. This includes such things as + * argv[]. The stack memory is guaranteed to be in the same protection + * domain as the thread. + * + * The following TCB fields will be re-initialized: + * + * - adj_stack_size: Stack size after removal of the stack frame from + * the stack + * - adj_stack_ptr: Adjusted initial stack pointer after the frame has + * been removed from the stack. This will still be the initial value + * of the stack pointer when the task is started. + * + * Inputs: + * - tcb: The TCB of new task + * - frame_size: The size of the stack frame to allocate. + * + * Returned Value: + * - A pointer to bottom of the allocated stack frame. NULL will be + * returned on any failures. The alignment of the returned value is + * the same as the alignment of the stack itself. + * + ****************************************************************************/ + +FAR void *up_stack_frame(FAR struct tcb_s *tcb, size_t frame_size) +{ + uintptr_t topaddr; + + /* Align the frame_size */ + + frame_size = STACK_ALIGN_UP(frame_size); + + /* Is there already a stack allocated? Is it big enough? */ + + if (!tcb->stack_alloc_ptr || tcb->adj_stack_size <= frame_size) + { + return NULL; + } + + /* Save the adjusted stack values in the struct tcb_s */ + + topaddr = (uintptr_t)tcb->adj_stack_ptr - frame_size; + tcb->adj_stack_ptr = (FAR void *)topaddr; + tcb->adj_stack_size -= frame_size; + + /* Reset the initial stack pointer */ + + tcb->xcp.regs[REG_SP] = (uint32_t)tcb->adj_stack_ptr; + + /* And return the pointer to the allocated region */ + + return (FAR void *)(topaddr + sizeof(uint32_t)); +} diff --git a/arch/misoc/src/lm32/lm32_swint.c b/arch/misoc/src/lm32/lm32_swint.c new file mode 100644 index 00000000000..cdfbeeb389e --- /dev/null +++ b/arch/misoc/src/lm32/lm32_swint.c @@ -0,0 +1,317 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_swint.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include +#include +#include + +#include +#include + +#include "lm32.h" + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_registerdump + ****************************************************************************/ + +#ifdef CONFIG_DEBUG_SYSCALL_INFO +static void up_registerdump(const uint32_t *regs) +{ +#if 0 + svcinfo("EPC:%08x\n", + regs[REG_EPC]); + svcinfo("A0:%08x A1:%08x A2:%08x A3:%08x A4:%08x A5:%08x A6:%08x A7:%08x\n", + regs[REG_A0], regs[REG_A1], regs[REG_A2], regs[REG_A3], + regs[REG_A4], regs[REG_A5], regs[REG_A6], regs[REG_A7]); + svcinfo("T0:%08x T1:%08x T2:%08x T3:%08x T4:%08x T5:%08x T6:%08x\n", + regs[REG_T0], regs[REG_T1], regs[REG_T2], regs[REG_T3], + regs[REG_T4], regs[REG_T5], regs[REG_T6]); + svcinfo("S0:%08x S1:%08x S2:%08x S3:%08x S4:%08x S5:%08x S6:%08x S7:%08x\n", + regs[REG_S0], regs[REG_S1], regs[REG_S2], regs[REG_S3], + regs[REG_S4], regs[REG_S5], regs[REG_S6], regs[REG_S7]); + svcinfo("S8:%08x S9:%08x S10:%08x S11:%08x\n", + regs[REG_S8], regs[REG_S9], regs[REG_S10], regs[REG_S11]); +#ifdef LM3232_SAVE_GP + svcinfo("GP:%08x SP:%08x FP:%08x TP:%08x RA:%08x\n", + regs[REG_GP], regs[REG_SP], regs[REG_FP], regs[REG_TP], regs[REG_RA]); +#else + svcinfo("SP:%08x FP:%08x TP:%08x RA:%08x\n", + regs[REG_SP], regs[REG_FP], regs[REG_TP], regs[REG_RA]); +#endif +#endif +} +#else +# define up_registerdump(regs) +#endif + +/**************************************************************************** + * Name: dispatch_syscall + * + * Description: + * Call the stub function corresponding to the system call. + * + ****************************************************************************/ + +#ifdef CONFIG_BUILD_KERNEL +static void dispatch_syscall(void) naked_function; +static void dispatch_syscall(void) +{ +# error "Missing logic" + +/* Refer to arch/arm/src/armv7-m/up_svcall.h for how this is done for ARM */ +/* __asm__ __volatile__ */ +/* ( */ +/* Save registers */ +/* Get the base of the stub lookup table */ +/* Get the offset of the stub for this syscall */ +/* Load the entry of the stub for this syscall */ +/* Call the stub */ +/* Restore regsisters */ +/* Return from the syscall */ +/* ); */ +} +#endif + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: lm32_swint + * + * Description: + * This is software interrupt exception handler that performs context + * switching and manages system calls + * + ****************************************************************************/ + +int lm32_swint(int irq, FAR void *context) +{ + uint32_t *regs = (uint32_t *)context; + + DEBUGASSERT(g_current_regs == NULL); + g_current_regs = regs; + + /* Software interrupt 0 is invoked with REG_A0 (REG_X10) = system call + * command and REG_A1-6 = variable number of + * arguments depending on the system call. + */ + +#ifdef CONFIG_DEBUG_SYSCALL_INFO + svcinfo("Entry: regs: %p cmd: %d\n", regs, regs[REG_A0]); + up_registerdump(regs); +#endif + + /* Handle the SWInt according to the command in $a0 */ + + switch (regs[REG_A0]) + { + /* A0=SYS_restore_context: This a restore context command: + * + * void up_fullcontextrestore(uint32_t *restoreregs) noreturn_function; + * + * At this point, the following values are saved in context: + * + * A0 = SYS_restore_context + * A1 = restoreregs + * + * In this case, we simply need to set g_current_regs to restore register + * area referenced in the saved R1. context == g_current_regs is the normal + * exception return. By setting g_current_regs = context[R1], we force + * the return to the saved context referenced in $a1. + */ + + case SYS_restore_context: + { + DEBUGASSERT(regs[REG_A1] != 0); + g_current_regs = (uint32_t *)regs[REG_A1]; + } + break; + + /* A0=SYS_switch_context: This a switch context command: + * + * void up_switchcontext(uint32_t *saveregs, uint32_t *restoreregs); + * + * At this point, the following values are saved in context: + * + * A0 = SYS_switch_context + * A1 = saveregs + * A2 = restoreregs + * + * In this case, we save the context registers to the save register + * area reference by the saved contents of R5 and then set + * g_current_regs to to the save register area referenced by the saved + * contents of R6. + */ + + case SYS_switch_context: + { + DEBUGASSERT(regs[REG_A1] != 0 && regs[REG_A2] != 0); + lm32_copystate((uint32_t *)regs[REG_A1], regs); + g_current_regs = (uint32_t *)regs[REG_A2]; + } + break; + + /* A0=SYS_syscall_return: This a switch context command: + * + * void up_sycall_return(void); + * + * At this point, the following values are saved in context: + * + * A0 = SYS_syscall_return + * + * We need to restore the saved return address and return in + * unprivileged thread mode. + */ + +#ifdef CONFIG_BUILD_KERNEL + case SYS_syscall_return: + { + struct tcb_s *rtcb = sched_self(); + int index = (int)rtcb->xcp.nsyscalls - 1; + + /* Make sure that there is a saved syscall return address. */ + + DEBUGASSERT(index >= 0); + + /* Setup to return to the saved syscall return address in + * the original mode. + */ + + g_current_regs[REG_EPC] = rtcb->xcp.syscall[index].sysreturn; +#error "Missing logic -- need to restore the original mode" + rtcb->xcp.nsyscalls = index; + } + break; +#endif + + /* This is not an architecture-specify system call. If NuttX is built + * as a standalone kernel with a system call interface, then all of the + * additional system calls must be handled as in the default case. + */ + + default: + { +#ifdef CONFIG_BUILD_KERNEL + FAR struct tcb_s *rtcb = sched_self(); + int index = rtcb->xcp.nsyscalls; + + /* Verify that the SYS call number is within range */ + + DEBUGASSERT(g_current_regs[REG_A0] < SYS_maxsyscall); + + /* Make sure that we got here that there is a no saved syscall + * return address. We cannot yet handle nested system calls. + */ + + DEBUGASSERT(index < CONFIG_SYS_NNEST); + + /* Setup to return to dispatch_syscall in privileged mode. */ + + rtcb->xcpsyscall[index].sysreturn = regs[REG_EPC]; +#error "Missing logic -- Need to save mode" + rtcb->xcp.nsyscalls = index + 1; + + regs[REG_EPC] = (uint32_t)dispatch_syscall; +#error "Missing logic -- Need to set privileged mode" + + /* Offset R0 to account for the reserved values */ + + g_current_regs[REG_A0] -= CONFIG_SYS_RESERVED; +#else + svcerr("ERROR: Bad SYS call: %d\n", regs[REG_A0]); +#endif + } + break; + } + + /* Report what happened. That might difficult in the case of a context switch */ + +#ifdef CONFIG_DEBUG_SYSCALL_INFO + if (regs != g_current_regs) + { + svcinfo("SWInt Return: Context switch!\n"); + up_registerdump((const uint32_t *)g_current_regs); + } + else + { + svcinfo("SWInt Return: %d\n", regs[REG_A0]); + } +#endif + + +#if defined(CONFIG_ARCH_FPU) || defined(CONFIG_ARCH_ADDRENV) + /* Check for a context switch. If a context switch occurred, then + * g_current_regs will have a different value than it did on entry. If an + * interrupt level context switch has occurred, then restore the floating + * point state and the establish the correct address environment before + * returning from the interrupt. + */ + + if (regs != g_current_regs) + { +#ifdef CONFIG_ARCH_FPU + /* Restore floating point registers */ + + up_restorefpu((uint32_t *)g_current_regs); +#endif + +#ifdef CONFIG_ARCH_ADDRENV + /* Make sure that the address environment for the previously + * running task is closed down gracefully (data caches dump, + * MMU flushed) and set up the address environment for the new + * thread at the head of the ready-to-run list. + */ + + (void)group_addrenv(NULL); +#endif + } +#endif + + return OK; +} diff --git a/arch/misoc/src/lm32/lm32_syscall.S b/arch/misoc/src/lm32/lm32_syscall.S new file mode 100644 index 00000000000..61b0b6ca7cf --- /dev/null +++ b/arch/misoc/src/lm32/lm32_syscall.S @@ -0,0 +1,103 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_syscall.S + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Ramtin Amin + * + * Derives from RISC-V version: + * + * Copyright (C) 2016 Ken Pettit. All rights reserved. + * Author: Ken Pettit + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +/**************************************************************************** + * Public Symbols + ****************************************************************************/ + + .file "up_syscall.S" + .global sys_call0 + .global sys_call1 + .global sys_call2 + .global sys_call3 + .global sys_call4 + .global sys_call5 + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_syscall0, up_syscall1, up_syscall2, up_syscall3 + * + * Description: + * up_syscall0 - System call SYS_ argument and no additional parameters. + * up_syscall1 - System call SYS_ argument and one additional parameter. + * up_syscall2 - System call SYS_ argument and two additional parameters. + * up_syscall3 - System call SYS_ argument and three additional parameters. + * up_syscall4 - System call SYS_ argument and four additional parameters. + * up_syscall5 - System call SYS_ argument and five additional parameters. + * + * Assumption: + * All interrupts are disabled except for the software interrupts. + * + ****************************************************************************/ + + .text + +sys_call0: /* a0 holds the syscall number */ +sys_call1: /* a0 holds the syscall number, argument in a1 */ +sys_call2: /* a0 holds the syscall number, arguments in a1 and a2 */ +sys_call3: /* a0 holds the syscall number, arguments in a1, a2, and a3 */ +sys_call4: /* a0 holds the syscall number, arguments in a1, a2, a3 and a4 */ +sys_call5: /* a0 holds the syscall number, arguments in a1, a2, a3, a4 and a5 */ + + /* Issue the ECALL opcode to perform a SW interrupt to the OS */ + + scall + + /* The actual interrupt may not a occur for a few more cycles. Let's + * put a few nop's here in hope that the SW interrupt occurs during + * the sequence of nops. + */ + + nop + nop + + /* Then return with the result of the software interrupt in v0 */ + + ret + nop diff --git a/arch/misoc/src/lm32/lm32_unblocktask.c b/arch/misoc/src/lm32/lm32_unblocktask.c new file mode 100644 index 00000000000..74b1d92472c --- /dev/null +++ b/arch/misoc/src/lm32/lm32_unblocktask.c @@ -0,0 +1,164 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_unblocktask.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include + +#include +#include + +#include "sched/sched.h" +#include "group/group.h" +#include "clock/clock.h" +#include "lm32.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_unblock_task + * + * Description: + * A task is currently in an inactive task list + * but has been prepped to execute. Move the TCB to the + * ready-to-run list, restore its context, and start execution. + * + * Inputs: + * tcb: Refers to the tcb to be unblocked. This tcb is + * in one of the waiting tasks lists. It must be moved to + * the ready-to-run list and, if it is the highest priority + * ready to run task, executed. + * + ****************************************************************************/ + +void up_unblock_task(struct tcb_s *tcb) +{ + struct tcb_s *rtcb = this_task(); + + /* Verify that the context switch can be performed */ + + ASSERT((tcb->task_state >= FIRST_BLOCKED_STATE) && + (tcb->task_state <= LAST_BLOCKED_STATE)); + + /* Remove the task from the blocked task list */ + + sched_removeblocked(tcb); + + /* Add the task in the correct location in the prioritized + * ready-to-run task list + */ + + if (sched_addreadytorun(tcb)) + { + /* The currently active task has changed! We need to do + * a context switch to the new task. + */ + + /* Update scheduler parameters */ + + sched_suspend_scheduler(rtcb); + + /* Are we in an interrupt handler? */ + + if (g_current_regs) + { + /* Yes, then we have to do things differently. + * Just copy the g_current_regs into the OLD rtcb. + */ + + up_savestate(rtcb->xcp.regs); + + /* Restore the exception context of the rtcb at the (new) head + * of the ready-to-run task list. + */ + + rtcb = this_task(); + + /* Update scheduler parameters */ + + sched_resume_scheduler(rtcb); + + /* Then switch contexts. Any necessary address environment + * changes will be made when the interrupt returns. + */ + + up_restorestate(rtcb->xcp.regs); + } + + /* No, then we will need to perform the user context switch */ + + else + { + /* Restore the exception context of the new task that is ready to + * run (probably tcb). This is the new rtcb at the head of the + * ready-to-run task list. + */ + + struct tcb_s *nexttcb = this_task(); + +#ifdef CONFIG_ARCH_ADDRENV + /* Make sure that the address environment for the previously + * running task is closed down gracefully (data caches dump, + * MMU flushed) and set up the address environment for the new + * thread at the head of the ready-to-run list. + */ + + (void)group_addrenv(nexttcb); +#endif + /* Update scheduler parameters */ + + sched_resume_scheduler(nexttcb); + + /* Then switch contexts */ + + up_switchcontext(rtcb->xcp.regs, nexttcb->xcp.regs); + + /* up_switchcontext forces a context switch to the task at the + * head of the ready-to-run list. It does not 'return' in the + * normal sense. When it does return, it is because the blocked + * task is again ready to run and has execution priority. + */ + } + } +} diff --git a/arch/misoc/src/lm32/lm32_vectors.S b/arch/misoc/src/lm32/lm32_vectors.S new file mode 100644 index 00000000000..a71cf63b98a --- /dev/null +++ b/arch/misoc/src/lm32/lm32_vectors.S @@ -0,0 +1,291 @@ +/**************************************************************************** + * arch/misoc/src/lm32/lm32_allocateheap.c + * LM32 C startup code. + * + * Adapted for NuttX: + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Ramtin Amin + * + * Derives from LatticeMico32 C startup code. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ +/* Linker memory organization ***********************************************/ +/* Data memory is organized as follows: + * + * 1) Initialized data (.data): + * Start: _sdata + * End(+1): _edata + * 2) Uninitialized data (.bss): + * Start: _sbss + * End(+1): _ebss + * + * The following are placed outside of the "normal" memory segments -- mostly + * so that they do not have to be cleared on power up. + * + * 3) Idle thread stack: + * Start: _ebss + * End(+1): _ebss+CONFIG_IDLETHREAD_STACKSIZE + * 4) Heap: + * Start: _ebss+CONFIG_IDLETHREAD_STACKSIZE + * End(+1): to the end of memory + */ + +#define LM32_STACK_BASE _ebss +#define LM32_STACK_TOP _ebss+CONFIG_IDLETHREAD_STACKSIZE +#define LM32_HEAP_BASE LM32_STACK_TOP + +/**************************************************************************** + * Exception handlers - Must be 32 bytes long. + ****************************************************************************/ + + .section .text, "ax", @progbits + .global g_idle_topstack + .global __start + +__start: +_reset_handler: + xor r0, r0, r0 + wcsr IE, r0 + mvhi r1, hi(_reset_handler) + ori r1, r1, lo(_reset_handler) + wcsr EBA, r1 + bi _do_reset + nop + nop + +_breakpoint_handler: + bi _breakpoint_handler + nop + nop + nop + nop + nop + nop + nop + +_instruction_bus_error_handler: + bi _instruction_bus_error_handler + nop + nop + nop + nop + nop + nop + nop + +_watchpoint_hander: + bi _watchpoint_hander + nop + nop + nop + nop + nop + nop + nop + +_data_bus_error_handler: + bi _data_bus_error_handler + nop + nop + nop + nop + nop + nop + nop + +_divide_by_zero_handler: + bi _divide_by_zero_handler + nop + nop + nop + nop + nop + nop + nop + +_interrupt_handler: + sw (sp+0), ra + calli .save_all + rcsr r1, IP + calli lm32_decodeirq + bi .restore_all_and_eret + nop + nop + nop + +_syscall_handler: + sw (sp+0), ra + addi ea, ea, 4 + calli .save_all + mvi r1, MISOC_IRQ_SWINT + calli lm32_doirq + bi .restore_all_and_eret + nop + nop + +_do_reset: + /* Setup stack and global pointer */ + + mvhi sp, hi(LM32_STACK_TOP) + ori sp, sp, lo(LM32_STACK_TOP) + + /* Clear BSS */ + + mvhi r1, hi(_sbss) + ori r1, r1, lo(_sbss) + mvhi r3, hi(_ebss) + ori r3, r3, lo(_ebss) + +.clearBSS: + be r1, r3, .callMain + sw (r1+0), r0 + addi r1, r1, 4 + bi .clearBSS + +.callMain: + bi os_start + +.save_all: + addi sp, sp, -136 + sw (sp+REG_X0), r0 + sw (sp+REG_X1), r1 + sw (sp+REG_X2), r2 + sw (sp+REG_X3), r3 + sw (sp+REG_X4), r4 + sw (sp+REG_X5), r5 + sw (sp+REG_X6), r6 + sw (sp+REG_X7), r7 + sw (sp+REG_X8), r8 + sw (sp+REG_X9), r9 + sw (sp+REG_X10), r10 + sw (sp+REG_X11), r11 + sw (sp+REG_X12), r12 + sw (sp+REG_X13), r13 + sw (sp+REG_X14), r14 + sw (sp+REG_X15), r15 + sw (sp+REG_X16), r16 + sw (sp+REG_X17), r17 + sw (sp+REG_X18), r18 + sw (sp+REG_X19), r19 + sw (sp+REG_X20), r20 + sw (sp+REG_X21), r21 + sw (sp+REG_X22), r22 + sw (sp+REG_X23), r23 + sw (sp+REG_X24), r24 + sw (sp+REG_X25), r25 + + sw (sp+REG_GP), r26 + sw (sp+REG_FP), r27 + + /* Save SP before we add 136 */ + + addi r1, sp, 136 + sw (sp+REG_SP), r1 + + /* reg RA done later */ + + sw (sp+REG_EA), r30 + sw (sp+REG_BA), r31 + + /* ra needs to be moved from initial stack location */ + + lw r1, (sp+ 136) + sw (sp+REG_RA), r1 + + /* Get IE/REG_INT_CTX */ + + rcsr r1, IE + sw (sp+REG_INT_CTX), r1 + + /* The 2nd argument is the regs pointer */ + + addi r2, sp, 0 + ret + +.restore_all_and_eret: + /* r1 should have the place where we restore ! */ + + lw r2, (r1+REG_X2) + lw r3, (r1+REG_X3) + lw r4, (r1+REG_X4) + lw r5, (r1+REG_X5) + lw r6, (r1+REG_X6) + lw r7, (r1+REG_X7) + lw r8, (r1+REG_X8) + lw r9, (r1+REG_X9) + lw r10, (r1+REG_X10) + lw r11, (r1+REG_X11) + lw r12, (r1+REG_X12) + lw r13, (r1+REG_X13) + lw r14, (r1+REG_X14) + lw r15, (r1+REG_X15) + lw r16, (r1+REG_X16) + lw r17, (r1+REG_X17) + lw r18, (r1+REG_X18) + lw r19, (r1+REG_X19) + lw r20, (r1+REG_X20) + lw r21, (r1+REG_X21) + lw r22, (r1+REG_X22) + lw r23, (r1+REG_X23) + lw r24, (r1+REG_X24) + lw r25, (r1+REG_X25) + lw r26, (r1+REG_GP) + lw r27, (r1+REG_FP) + lw r28, (r1+REG_SP) + lw r29, (r1+REG_RA) + lw r30, (r1+REG_EA) + lw r31, (r1+REG_BA) + lw r1, (r1+REG_INT_CTX) + wcsr IE, r1 + lw r1, (r1+REG_X1) + + eret + + /* This global variable is unsigned long g_idle_topstack and is + * exported from here only because of its coupling to other + * uses of _ebss in this file + */ + + .data + .align 4 + .type g_idle_topstack, object + +g_idle_topstack: + .long _LM32_STACK_TOP + .size g_idle_topstack, .-g_idle_topstack + .end diff --git a/configs/misoc/Kconfig b/configs/misoc/Kconfig new file mode 100644 index 00000000000..f72f3c094ce --- /dev/null +++ b/configs/misoc/Kconfig @@ -0,0 +1,4 @@ +# +# For a description of the syntax of this configuration file, +# see the file kconfig-language.txt in the NuttX tools repository. +# diff --git a/configs/misoc/README.txt b/configs/misoc/README.txt new file mode 100644 index 00000000000..285b6a4724d --- /dev/null +++ b/configs/misoc/README.txt @@ -0,0 +1,62 @@ +Misoc README +============ + + This README applies to a port to NuttX running on a Qemu LM32 system. You + can find the Qemu setup at https://bitbucket.org/key2/qemu + +Buildroot Toolchain +=================== + + A GNU GCC-based toolchain is assumed. The files */setenv.sh should + be modified to point to the correct path to the LM32 GCC toolchain (if + different from the default in your PATH variable). + + If you have no LM32 toolchain, one can be cloned from the NuttX + Bitbucket GIT repository (https://bitbucket.org/nuttx/buildroot). + This GNU toolchain builds and executes in the Linux or Cygwin environment. + + 1. You must have already configured Nuttx in /nuttx. + + cd tools + ./configure.sh misoc/ + make oldconfig context + + 2. Clone the latest buildroot package into /buildroot + + git clone git@bitbucket.org:nuttx/buildroot.git /buildroot + + or + + git clone https://patacongo@bitbucket.org/nuttx/buildroot.git /buildroot + + 3. cd /buildroot + + 4. cp lm32-elf-defconfig-6.1.0 .config + + 5. make oldconfig + + 6. make + + 7. By default, the tools will be at the absolute path: + + /buildroot/build_lm32/staging_dir/bin + + Or the NuttX relative path: + + ../buildroot/build_lm32/staging_dir/bin + + The setenv.sh files in these sub-directories are already set to use + the relative path. It you choose to install the buildroot package + in some other location, you may need to edit the setenv.h file so + that the PATH variable includes the path to the newly built binaries. + + See the file configs/README.txt in the buildroot source tree. That has more + detailed PLUS some special instructions that you will need to follow if you + are building a LM32 toolchain for Cygwin under Windows. Also included in + that README file is a FAQ of frequent build issues that their work-arounds. + + In order to use the buildroot toolchain, you also must set the following + in your .config file: + + CONFIG_LM3S_TOOLCHAIN_BUILDROOT=y + diff --git a/configs/misoc/hello/Make.defs b/configs/misoc/hello/Make.defs new file mode 100644 index 00000000000..f82c1cb2232 --- /dev/null +++ b/configs/misoc/hello/Make.defs @@ -0,0 +1,101 @@ +############################################################################ +# configs/misoc/hello/Make.defs +# +# Copyright (C) 2016 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt +# Ramtin Amin +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# 3. Neither the name NuttX nor the names of its contributors may be +# used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# +############################################################################ + +include ${TOPDIR}/.config +include ${TOPDIR}/tools/Config.mk +include ${TOPDIR}/arch/misoc/src/lm32/Toolchain.defs + +LDSCRIPT = ld.script + +ifeq ($(WINTOOL),y) + # Windows-native toolchains + DIRLINK = $(TOPDIR)/tools/copydir.sh + DIRUNLINK = $(TOPDIR)/tools/unlink.sh + MKDEP = $(TOPDIR)/tools/mkwindeps.sh + ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" + ARCHXXINCLUDES = $(ARCHINCLUDES) "${shell cygpath -w $(TOPDIR)/include/cxx}" + ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}" +else + # Linux/Cygwin-native toolchain + MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT) + ARCHINCLUDES = -I. -isystem "$(TOPDIR)/include" + ARCHXXINCLUDES = $(ARCHINCLUDES) -isystem "$(TOPDIR)/include/cxx" + ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD_CUSTOM_NAME)/scripts/$(LDSCRIPT) +endif + +CC = $(CROSSDEV)gcc +CXX = $(CROSSDEV)g++ +CPP = $(CROSSDEV)gcc -E +LD = $(CROSSDEV)ld +AR = $(CROSSDEV)ar rcs +NM = $(CROSSDEV)nm +OBJCOPY = $(CROSSDEV)objcopy +OBJDUMP = $(CROSSDEV)objdump + +ifeq ($(CONFIG_DEBUG_SYMBOLS),y) + ARCHOPTIMIZATION = -g +endif + +ifneq ($(CONFIG_DEBUG_NOOPT),y) + ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer +endif + +ARCHCFLAGS = -fno-builtin +ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new +ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef +ARCHWARNINGSXX = -Wall -Wshadow -Wundef +ARCHDEFINES = + +CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe +CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe +CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS) +CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) +AFLAGS = $(CFLAGS) -D__ASSEMBLY__ + +NXFLATLDFLAGS1 = -r -d -warn-common +NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-gotoff.ld -no-check-sections +LDNXFLATFLAGS = -e main -s 2048 + +ASMEXT = .S +OBJEXT = .o +LIBEXT = .a +EXEEXT = + + +HOSTCC = gcc +HOSTINCLUDES = -I. +HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -Wundef -g -pipe +HOSTLDFLAGS = diff --git a/configs/misoc/hello/defconfig b/configs/misoc/hello/defconfig new file mode 100644 index 00000000000..dddddfd3ee9 --- /dev/null +++ b/configs/misoc/hello/defconfig @@ -0,0 +1,648 @@ +# +# Automatically generated file; DO NOT EDIT. +# Nuttx/ Configuration +# + +# +# Build Setup +# +# CONFIG_EXPERIMENTAL is not set +# CONFIG_DEFAULT_SMALL is not set +CONFIG_HOST_LINUX=y +# CONFIG_HOST_OSX is not set +# CONFIG_HOST_WINDOWS is not set +# CONFIG_HOST_OTHER is not set + +# +# Build Configuration +# +# CONFIG_APPS_DIR="../apps" +CONFIG_BUILD_FLAT=y +# CONFIG_BUILD_2PASS is not set + +# +# Binary Output Formats +# +# CONFIG_RRLOAD_BINARY is not set +# CONFIG_INTELHEX_BINARY is not set +# CONFIG_MOTOROLA_SREC is not set +CONFIG_RAW_BINARY=y +# CONFIG_UBOOT_UIMAGE is not set + +# +# Customize Header Files +# +# CONFIG_ARCH_STDINT_H is not set +# CONFIG_ARCH_STDBOOL_H is not set +# CONFIG_ARCH_MATH_H is not set +# CONFIG_ARCH_FLOAT_H is not set +# CONFIG_ARCH_STDARG_H is not set +# CONFIG_ARCH_DEBUG_H is not set + +# +# Debug Options +# +CONFIG_DEBUG_ALERT=y +CONFIG_DEBUG_FEATURES=y + +# +# Debug SYSLOG Output Controls +# +# CONFIG_DEBUG_ERROR is not set +# CONFIG_DEBUG_ASSERTIONS is not set + +# +# Subsystem Debug Options +# +# CONFIG_DEBUG_BINFMT is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_DEBUG_GRAPHICS is not set +# CONFIG_DEBUG_LIB is not set +# CONFIG_DEBUG_MM is not set +# CONFIG_DEBUG_SCHED is not set + +# +# OS Function Debug Options +# +# CONFIG_DEBUG_IRQ is not set + +# +# Driver Debug Options +# +# CONFIG_DEBUG_GPIO is not set +# CONFIG_DEBUG_TIMER is not set +# CONFIG_ARCH_HAVE_STACKCHECK is not set +# CONFIG_ARCH_HAVE_HEAPCHECK is not set +CONFIG_DEBUG_SYMBOLS=y +CONFIG_ARCH_HAVE_CUSTOMOPT=y +CONFIG_DEBUG_NOOPT=y +# CONFIG_DEBUG_CUSTOMOPT is not set +# CONFIG_DEBUG_FULLOPT is not set + +# +# System Type +# +# CONFIG_ARCH_ARM is not set +# CONFIG_ARCH_AVR is not set +# CONFIG_ARCH_HC is not set +# CONFIG_ARCH_MIPS is not set +CONFIG_ARCH_MISOC=y +# CONFIG_ARCH_RGMP is not set +# CONFIG_ARCH_RENESAS is not set +# CONFIG_ARCH_RISCV is not set +# CONFIG_ARCH_SIM is not set +# CONFIG_ARCH_X86 is not set +# CONFIG_ARCH_XTENSA is not set +# CONFIG_ARCH_Z16 is not set +# CONFIG_ARCH_Z80 is not set +CONFIG_ARCH="misoc" +CONFIG_ARCH_CHIP="lm32" +CONFIG_ARCH_CHIP_LM32=y +# CONFIG_ARCH_CHIP_MOR1K is not set + +# +# MISOC Peripheral Support +# +CONFIG_MISOC_HAVE_UART1=y +CONFIG_MISOC_UART1=y +CONFIG_MISOC_UART=y +CONFIG_MISOC_UART_RX_BUF_SIZE=64 +CONFIG_MISOC_UART_TX_BUF_SIZE=64 +# CONFIG_LM32_TOOLCHAIN_BUILDROOT is not set +CONFIG_LM32_TOOLCHAIN_GNUL=y + +# +# Architecture Options +# +# CONFIG_ARCH_NOINTC is not set +# CONFIG_ARCH_VECNOTIRQ is not set +# CONFIG_ARCH_DMA is not set +# CONFIG_ARCH_HAVE_IRQPRIO is not set +# CONFIG_ARCH_L2CACHE is not set +# CONFIG_ARCH_HAVE_COHERENT_DCACHE is not set +# CONFIG_ARCH_HAVE_ADDRENV is not set +# CONFIG_ARCH_NEED_ADDRENV_MAPPING is not set +# CONFIG_ARCH_HAVE_MULTICPU is not set +# CONFIG_ARCH_HAVE_VFORK is not set +# CONFIG_ARCH_HAVE_MMU is not set +# CONFIG_ARCH_HAVE_MPU is not set +# CONFIG_ARCH_NAND_HWECC is not set +# CONFIG_ARCH_HAVE_EXTCLK is not set +# CONFIG_ARCH_HAVE_POWEROFF is not set +# CONFIG_ARCH_HAVE_RESET is not set +CONFIG_ARCH_STACKDUMP=y +# CONFIG_ENDIAN_BIG is not set +# CONFIG_ARCH_IDLE_CUSTOM is not set +# CONFIG_ARCH_HAVE_RAMFUNCS is not set +# CONFIG_ARCH_HAVE_RAMVECTORS is not set + +# +# Board Settings +# +CONFIG_BOARD_LOOPSPERMSEC=800 +# CONFIG_ARCH_CALIBRATION is not set + +# +# Interrupt options +# +CONFIG_ARCH_HAVE_INTERRUPTSTACK=y +CONFIG_ARCH_INTERRUPTSTACK=0 +# CONFIG_ARCH_HAVE_HIPRI_INTERRUPT is not set + +# +# Boot options +# +# CONFIG_BOOT_RUNFROMEXTSRAM is not set +CONFIG_BOOT_RUNFROMFLASH=y +# CONFIG_BOOT_RUNFROMISRAM is not set +# CONFIG_BOOT_RUNFROMSDRAM is not set +# CONFIG_BOOT_COPYTORAM is not set + +# +# Boot Memory Configuration +# +CONFIG_RAM_START=0x40000000 +CONFIG_RAM_SIZE=524288 +# CONFIG_ARCH_HAVE_SDRAM is not set + +# +# Board Selection +# +CONFIG_ARCH_BOARD_CUSTOM=y + +# +# Custom Board Configuration +# +CONFIG_ARCH_BOARD_CUSTOM_NAME="misoc" +CONFIG_ARCH_BOARD_CUSTOM_DIR="/configs/misoc/" +CONFIG_ARCH_BOARD_CUSTOM_DIR_RELPATH=y +# CONFIG_BOARD_CUSTOM_LEDS is not set +# CONFIG_BOARD_CUSTOM_BUTTONS is not set + +# +# Common Board Options +# + +# +# Board-Specific Options +# +# CONFIG_BOARD_CRASHDUMP is not set +# CONFIG_LIB_BOARDCTL is not set + +# +# RTOS Features +# +CONFIG_DISABLE_OS_API=y +CONFIG_DISABLE_POSIX_TIMERS=y +CONFIG_DISABLE_PTHREAD=y +CONFIG_DISABLE_SIGNALS=y +CONFIG_DISABLE_MQUEUE=y +CONFIG_DISABLE_ENVIRON=y + +# +# Clocks and Timers +# +CONFIG_USEC_PER_TICK=10000 +# CONFIG_SYSTEM_TIME64 is not set +# CONFIG_CLOCK_MONOTONIC is not set +# CONFIG_ARCH_HAVE_TIMEKEEPING is not set +# CONFIG_JULIAN_TIME is not set +CONFIG_START_YEAR=2011 +CONFIG_START_MONTH=6 +CONFIG_START_DAY=16 +CONFIG_MAX_WDOGPARMS=2 +CONFIG_PREALLOC_WDOGS=4 +CONFIG_WDOG_INTRESERVE=0 +CONFIG_PREALLOC_TIMERS=0 + +# +# Tasks and Scheduling +# +# CONFIG_INIT_NONE is not set +CONFIG_INIT_ENTRYPOINT=y +# CONFIG_INIT_FILEPATH is not set +CONFIG_USER_ENTRYPOINT="hello_main" +CONFIG_RR_INTERVAL=0 +# CONFIG_SCHED_SPORADIC is not set +CONFIG_TASK_NAME_SIZE=0 +CONFIG_MAX_TASKS=4 +# CONFIG_SCHED_HAVE_PARENT is not set +# CONFIG_SCHED_WAITPID is not set + +# +# Performance Monitoring +# +# CONFIG_SCHED_CPULOAD is not set +# CONFIG_SCHED_INSTRUMENTATION is not set + +# +# Files and I/O +# +CONFIG_DEV_CONSOLE=y +# CONFIG_FDCLONE_DISABLE is not set +# CONFIG_FDCLONE_STDIO is not set +CONFIG_SDCLONE_DISABLE=y +CONFIG_NFILE_DESCRIPTORS=4 +CONFIG_NFILE_STREAMS=4 +CONFIG_NAME_MAX=32 +# CONFIG_PRIORITY_INHERITANCE is not set + +# +# RTOS hooks +# +# CONFIG_BOARD_INITIALIZE is not set +# CONFIG_SCHED_STARTHOOK is not set +# CONFIG_SCHED_ATEXIT is not set +# CONFIG_SCHED_ONEXIT is not set +# CONFIG_MODULE is not set + +# +# Work queue support +# + +# +# Stack and heap information +# +CONFIG_IDLETHREAD_STACKSIZE=512 +CONFIG_USERMAIN_STACKSIZE=512 +CONFIG_PTHREAD_STACK_MIN=256 +CONFIG_PTHREAD_STACK_DEFAULT=1024 +# CONFIG_LIB_SYSCALL is not set + +# +# Device Drivers +# +CONFIG_DISABLE_POLL=y +CONFIG_DEV_NULL=y +# CONFIG_DEV_ZERO is not set +# CONFIG_DEV_URANDOM is not set +# CONFIG_DEV_LOOP is not set + +# +# Buffering +# +# CONFIG_DRVR_WRITEBUFFER is not set +# CONFIG_DRVR_READAHEAD is not set +# CONFIG_RAMDISK is not set +# CONFIG_CAN is not set +# CONFIG_ARCH_HAVE_PWM_PULSECOUNT is not set +# CONFIG_ARCH_HAVE_PWM_MULTICHAN is not set +# CONFIG_PWM is not set +# CONFIG_ARCH_HAVE_I2CRESET is not set +# CONFIG_I2C is not set +# CONFIG_SPI is not set +# CONFIG_ARCH_HAVE_SPI_CRCGENERATION is not set +# CONFIG_ARCH_HAVE_SPI_CS_CONTROL is not set +# CONFIG_ARCH_HAVE_SPI_BITORDER is not set +# CONFIG_I2S is not set + +# +# Timer Driver Support +# +# CONFIG_TIMER is not set +# CONFIG_ONESHOT is not set +# CONFIG_RTC is not set +# CONFIG_WATCHDOG is not set +# CONFIG_ANALOG is not set +# CONFIG_AUDIO_DEVICES is not set +# CONFIG_VIDEO_DEVICES is not set +# CONFIG_BCH is not set +# CONFIG_INPUT is not set + +# +# IO Expander/GPIO Support +# +# CONFIG_IOEXPANDER is not set +# CONFIG_DEV_GPIO is not set + +# +# LCD Driver Support +# +# CONFIG_LCD is not set +# CONFIG_SLCD is not set + +# +# LED Support +# +# CONFIG_RGBLED is not set +# CONFIG_PCA9635PW is not set +# CONFIG_NCP5623C is not set +# CONFIG_MMCSD is not set +# CONFIG_MODEM is not set +# CONFIG_MTD is not set +# CONFIG_EEPROM is not set +# CONFIG_PIPES is not set +# CONFIG_PM is not set +# CONFIG_POWER is not set +# CONFIG_SENSORS is not set +# CONFIG_SERCOMM_CONSOLE is not set +CONFIG_SERIAL=y +# CONFIG_DEV_LOWCONSOLE is not set +# CONFIG_SERIAL_REMOVABLE is not set +CONFIG_SERIAL_CONSOLE=y +# CONFIG_16550_UART is not set +# CONFIG_UART_SERIALDRIVER is not set +# CONFIG_UART0_SERIALDRIVER is not set +CONFIG_UART1_SERIALDRIVER=y +# CONFIG_UART2_SERIALDRIVER is not set +# CONFIG_UART3_SERIALDRIVER is not set +# CONFIG_UART4_SERIALDRIVER is not set +# CONFIG_UART5_SERIALDRIVER is not set +# CONFIG_UART6_SERIALDRIVER is not set +# CONFIG_UART7_SERIALDRIVER is not set +# CONFIG_UART8_SERIALDRIVER is not set +# CONFIG_SCI0_SERIALDRIVER is not set +# CONFIG_SCI1_SERIALDRIVER is not set +# CONFIG_USART0_SERIALDRIVER is not set +# CONFIG_USART1_SERIALDRIVER is not set +# CONFIG_USART2_SERIALDRIVER is not set +# CONFIG_USART3_SERIALDRIVER is not set +# CONFIG_USART4_SERIALDRIVER is not set +# CONFIG_USART5_SERIALDRIVER is not set +# CONFIG_USART6_SERIALDRIVER is not set +# CONFIG_USART7_SERIALDRIVER is not set +# CONFIG_USART8_SERIALDRIVER is not set +# CONFIG_OTHER_UART_SERIALDRIVER is not set +CONFIG_MCU_SERIAL=y +# CONFIG_STANDARD_SERIAL is not set +# CONFIG_SERIAL_IFLOWCONTROL is not set +# CONFIG_SERIAL_OFLOWCONTROL is not set +# CONFIG_SERIAL_DMA is not set +# CONFIG_SERIAL_TIOCSERGSTRUCT is not set +# CONFIG_ARCH_HAVE_SERIAL_TERMIOS is not set +CONFIG_UART1_SERIAL_CONSOLE=y +# CONFIG_OTHER_SERIAL_CONSOLE is not set +# CONFIG_NO_SERIAL_CONSOLE is not set + +# +# UART1 Configuration +# +CONFIG_UART1_RXBUFSIZE=256 +CONFIG_UART1_TXBUFSIZE=256 +CONFIG_UART1_BAUD=115200 +CONFIG_UART1_BITS=8 +CONFIG_UART1_PARITY=0 +CONFIG_UART1_2STOP=0 +# CONFIG_UART1_IFLOWCONTROL is not set +# CONFIG_UART1_OFLOWCONTROL is not set +# CONFIG_UART1_DMA is not set +# CONFIG_PSEUDOTERM is not set +# CONFIG_USBDEV is not set +# CONFIG_USBHOST is not set +# CONFIG_HAVE_USBTRACE is not set +# CONFIG_DRIVERS_WIRELESS is not set +# CONFIG_DRIVERS_CONTACTLESS is not set + +# +# System Logging +# +# CONFIG_ARCH_SYSLOG is not set +# CONFIG_RAMLOG is not set +# CONFIG_SYSLOG_INTBUFFER is not set +# CONFIG_SYSLOG_TIMESTAMP is not set +CONFIG_SYSLOG_SERIAL_CONSOLE=y +# CONFIG_SYSLOG_CHAR is not set +CONFIG_SYSLOG_CONSOLE=y +# CONFIG_SYSLOG_NONE is not set +# CONFIG_SYSLOG_FILE is not set +# CONFIG_SYSLOG_CHARDEV is not set + +# +# Networking Support +# +# CONFIG_ARCH_HAVE_NET is not set +# CONFIG_ARCH_HAVE_PHY is not set +# CONFIG_NET is not set + +# +# Crypto API +# +# CONFIG_CRYPTO is not set + +# +# File Systems +# + +# +# File system configuration +# +CONFIG_DISABLE_MOUNTPOINT=y +CONFIG_DISABLE_PSEUDOFS_OPERATIONS=y +# CONFIG_FS_READABLE is not set +# CONFIG_FS_WRITABLE is not set +# CONFIG_FS_NAMED_SEMAPHORES is not set +# CONFIG_FS_RAMMAP is not set +# CONFIG_FS_PROCFS is not set +# CONFIG_FS_UNIONFS is not set + +# +# Graphics Support +# +# CONFIG_NX is not set + +# +# Memory Management +# +# CONFIG_MM_SMALL is not set +CONFIG_MM_REGIONS=1 +# CONFIG_ARCH_HAVE_HEAP2 is not set +# CONFIG_GRAN is not set + +# +# Audio Support +# +# CONFIG_AUDIO is not set + +# +# Wireless Support +# + +# +# Binary Loader +# +# CONFIG_BINFMT_DISABLE is not set +# CONFIG_NXFLAT is not set +# CONFIG_ELF is not set +# CONFIG_BUILTIN is not set +# CONFIG_PIC is not set +# CONFIG_SYMTAB_ORDEREDBYNAME is not set + +# +# Library Routines +# + +# +# Standard C Library Options +# +CONFIG_STDIO_BUFFER_SIZE=0 +CONFIG_STDIO_LINEBUFFER=y +CONFIG_NUNGET_CHARS=0 +# CONFIG_LIBM is not set +# CONFIG_NOPRINTF_FIELDWIDTH is not set +# CONFIG_LIBC_FLOATINGPOINT is not set +# CONFIG_LIBC_LONG_LONG is not set +# CONFIG_LIBC_IOCTL_VARIADIC is not set +# CONFIG_LIBC_WCHAR is not set +# CONFIG_LIBC_LOCALE is not set +CONFIG_LIB_RAND_ORDER=1 +# CONFIG_EOL_IS_CR is not set +# CONFIG_EOL_IS_LF is not set +# CONFIG_EOL_IS_BOTH_CRLF is not set +CONFIG_EOL_IS_EITHER_CRLF=y +# CONFIG_LIBC_EXECFUNCS is not set +CONFIG_POSIX_SPAWN_PROXY_STACKSIZE=1024 +CONFIG_TASK_SPAWN_DEFAULT_STACKSIZE=2048 +# CONFIG_LIBC_STRERROR is not set +# CONFIG_LIBC_PERROR_STDOUT is not set +CONFIG_ARCH_LOWPUTC=y +# CONFIG_TIME_EXTENDED is not set +CONFIG_LIB_SENDFILE_BUFSIZE=512 +# CONFIG_ARCH_ROMGETC is not set +# CONFIG_ARCH_OPTIMIZED_FUNCTIONS is not set +# CONFIG_ARCH_HAVE_TLS is not set +# CONFIG_LIBC_NETDB is not set + +# +# Non-standard Library Support +# +# CONFIG_LIB_CRC64_FAST is not set +# CONFIG_LIB_KBDCODEC is not set +# CONFIG_LIB_SLCDCODEC is not set +# CONFIG_LIB_HEX2BIN is not set + +# +# Basic CXX Support +# +# CONFIG_C99_BOOL8 is not set +# CONFIG_HAVE_CXX is not set + +# +# Application Configuration +# + +# +# CAN Utilities +# + +# +# Examples +# +# CONFIG_EXAMPLES_CCTYPE is not set +# CONFIG_EXAMPLES_CHAT is not set +# CONFIG_EXAMPLES_CONFIGDATA is not set +# CONFIG_EXAMPLES_DHCPD is not set +# CONFIG_EXAMPLES_ELF is not set +# CONFIG_EXAMPLES_FTPC is not set +# CONFIG_EXAMPLES_FTPD is not set +CONFIG_EXAMPLES_HELLO=y +CONFIG_EXAMPLES_HELLO_PRIORITY=100 +CONFIG_EXAMPLES_HELLO_STACKSIZE=2048 +# CONFIG_EXAMPLES_HIDKBD is not set +# CONFIG_EXAMPLES_IGMP is not set +# CONFIG_EXAMPLES_JSON is not set +# CONFIG_EXAMPLES_KEYPADTEST is not set +# CONFIG_EXAMPLES_MEDIA is not set +# CONFIG_EXAMPLES_MM is not set +# CONFIG_EXAMPLES_MODBUS is not set +# CONFIG_EXAMPLES_MOUNT is not set +# CONFIG_EXAMPLES_NRF24L01TERM is not set +# CONFIG_EXAMPLES_NSH is not set +# CONFIG_EXAMPLES_NULL is not set +# CONFIG_EXAMPLES_NX is not set +# CONFIG_EXAMPLES_NXFFS is not set +# CONFIG_EXAMPLES_NXHELLO is not set +# CONFIG_EXAMPLES_NXIMAGE is not set +# CONFIG_EXAMPLES_NXLINES is not set +# CONFIG_EXAMPLES_NXTERM is not set +# CONFIG_EXAMPLES_NXTEXT is not set +# CONFIG_EXAMPLES_OSTEST is not set +# CONFIG_EXAMPLES_PCA9635 is not set +# CONFIG_EXAMPLES_POSIXSPAWN is not set +# CONFIG_EXAMPLES_PPPD is not set +# CONFIG_EXAMPLES_RFID_READUID is not set +# CONFIG_EXAMPLES_RGBLED is not set +# CONFIG_EXAMPLES_RGMP is not set +# CONFIG_EXAMPLES_SENDMAIL is not set +# CONFIG_EXAMPLES_SERIALBLASTER is not set +# CONFIG_EXAMPLES_SERIALRX is not set +# CONFIG_EXAMPLES_SERLOOP is not set +# CONFIG_EXAMPLES_SLCD is not set +# CONFIG_EXAMPLES_SMART is not set +# CONFIG_EXAMPLES_SMP is not set +# CONFIG_EXAMPLES_TCPECHO is not set +# CONFIG_EXAMPLES_TELNETD is not set +# CONFIG_EXAMPLES_TIFF is not set +# CONFIG_EXAMPLES_TOUCHSCREEN is not set +# CONFIG_EXAMPLES_USBTERM is not set +# CONFIG_EXAMPLES_WATCHDOG is not set +# CONFIG_EXAMPLES_WEBSERVER is not set + +# +# File System Utilities +# +# CONFIG_FSUTILS_INIFILE is not set + +# +# GPS Utilities +# +# CONFIG_GPSUTILS_MINMEA_LIB is not set + +# +# Graphics Support +# +# CONFIG_TIFF is not set +# CONFIG_GRAPHICS_TRAVELER is not set + +# +# Interpreters +# +# CONFIG_INTERPRETERS_FICL is not set +# CONFIG_INTERPRETERS_MICROPYTHON is not set +# CONFIG_INTERPRETERS_MINIBASIC is not set +# CONFIG_INTERPRETERS_PCODE is not set + +# +# FreeModBus +# +# CONFIG_MODBUS is not set + +# +# Network Utilities +# +# CONFIG_NETUTILS_CODECS is not set +# CONFIG_NETUTILS_ESP8266 is not set +# CONFIG_NETUTILS_FTPC is not set +# CONFIG_NETUTILS_JSON is not set +# CONFIG_NETUTILS_SMTP is not set + +# +# NSH Library +# +# CONFIG_NSH_LIBRARY is not set + +# +# NxWidgets/NxWM +# + +# +# Platform-specific Support +# +# CONFIG_PLATFORM_CONFIGDATA is not set + +# +# System Libraries and NSH Add-Ons +# +# CONFIG_SYSTEM_CLE is not set +# CONFIG_SYSTEM_CUTERM is not set +# CONFIG_SYSTEM_FREE is not set +# CONFIG_SYSTEM_HEX2BIN is not set +# CONFIG_SYSTEM_HEXED is not set +# CONFIG_SYSTEM_INSTALL is not set +# CONFIG_SYSTEM_RAMTEST is not set +# CONFIG_READLINE_HAVE_EXTMATCH is not set +# CONFIG_SYSTEM_READLINE is not set +# CONFIG_SYSTEM_SUDOKU is not set +# CONFIG_SYSTEM_TEE is not set +# CONFIG_SYSTEM_UBLOXMODEM is not set +# CONFIG_SYSTEM_VI is not set +# CONFIG_SYSTEM_ZMODEM is not set diff --git a/configs/misoc/hello/setenv.sh b/configs/misoc/hello/setenv.sh new file mode 100644 index 00000000000..7ba5ee60e7d --- /dev/null +++ b/configs/misoc/hello/setenv.sh @@ -0,0 +1,58 @@ +#!/bin/bash +# configs/amber/hello/setenv.sh +# +# Copyright (C) 2016 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt +# Ramtin Amin +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# 3. Neither the name NuttX nor the names of its contributors may be +# used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# + +if [ "$_" = "$0" ] ; then + echo "You must source this script, not run it!" 1>&2 + exit 1 +fi + +WD=`pwd` +if [ ! -x "setenv.sh" ]; then + echo "This script must be executed from the top-level NuttX build directory" + exit 1 +fi + +if [ -z "${PATH_ORIG}" ]; then + export PATH_ORIG="${PATH}" +fi + +# This is the Cygwin path to the location where I build the buildroot +# toolchain. +export TOOLCHAIN_BIN="${WD}/../buildroot/build_lm32/staging_dir/bin" + +# Add the path to the toolchain to the PATH varialble +export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}" + +echo "PATH : ${PATH}" diff --git a/configs/misoc/include/board.h b/configs/misoc/include/board.h new file mode 100644 index 00000000000..8db2fcc7cf3 --- /dev/null +++ b/configs/misoc/include/board.h @@ -0,0 +1,100 @@ +/**************************************************************************** + * configs/misoc/include/board.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __CONFIGS_AMBER_INCLUDE_BOARD_H +#define __CONFIGS_AMBER_INCLUDE_BOARD_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* Clocking *****************************************************************/ +/* Assume default CLKDIV8 fuse setting is overridden to CLKDIV1 */ + +#define BOARD_XTAL_FREQ 14745600 /* 14.7456MHz crystal */ +#define BOARD_CPU_CLOCK BOARD_XTAL_FREQ /* F_CPU = 14.7456MHz */ +#define BOARD_TOSCK_CLOCK 32768 /* TOSC = 32.768KHz */ + +/* LED definitions **********************************************************/ +/* The Amber Web Server has a reset switch and four LEDs. The LEDs indicate + * the status of power, programming state, Ethernet link status and reset + * status (Active). None are available for software use. + */ + +#define LED_STARTED 0 +#define LED_HEAPALLOCATE 1 +#define LED_IRQSENABLED 2 +#define LED_STACKCREATED 3 +#define LED_INIRQ 4 +#define LED_SIGNAL 5 +#define LED_ASSERTION 6 +#define LED_PANIC 7 + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +/**************************************************************************** + * Inline Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#ifdef __cplusplus +#define EXTERN extern "C" +extern "C" +{ +#else +#define EXTERN extern +#endif + +#undef EXTERN +#ifdef __cplusplus +} +#endif + +#endif /* __ASSEMBLY__ */ +#endif /* __CONFIGS_AMBER_INCLUDE_BOARD_H */ diff --git a/configs/misoc/include/generated/common.h b/configs/misoc/include/generated/common.h new file mode 100644 index 00000000000..38859deefab --- /dev/null +++ b/configs/misoc/include/generated/common.h @@ -0,0 +1,49 @@ +/**************************************************************************** + * configs/misoc/include/generated/common.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __CONFIGS_MISOC_INCLUDE_GENERATED_COMMON_H +#define __CONFIGS_MISOC_INCLUDE_GENERATED_COMMON_H + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#ifdef __ASSEMBLER__ +# define MMPTR(x) x +#else +# define MMPTR(x) (*((volatile unsigned int *)(x))) +#endif + +#endif /* __CONFIGS_MISOC_INCLUDE_GENERATED_COMMON_H */ diff --git a/configs/misoc/include/generated/csr.h b/configs/misoc/include/generated/csr.h new file mode 100644 index 00000000000..abfa8b39cdc --- /dev/null +++ b/configs/misoc/include/generated/csr.h @@ -0,0 +1,250 @@ +#ifndef __GENERATED_CSR_H +#define __GENERATED_CSR_H +#include + +/* sdram */ +#define CSR_SDRAM_BASE 0xe0004000 +#define CSR_SDRAM_DFII_CONTROL_ADDR 0xe0004000 +#define CSR_SDRAM_DFII_CONTROL_SIZE 1 +static inline unsigned char sdram_dfii_control_read(void) { + unsigned char r = MMPTR(0xe0004000); + return r; +} +static inline void sdram_dfii_control_write(unsigned char value) { + MMPTR(0xe0004000) = value; +} +#define CSR_SDRAM_DFII_PI0_COMMAND_ADDR 0xe0004004 +#define CSR_SDRAM_DFII_PI0_COMMAND_SIZE 1 +static inline unsigned char sdram_dfii_pi0_command_read(void) { + unsigned char r = MMPTR(0xe0004004); + return r; +} +static inline void sdram_dfii_pi0_command_write(unsigned char value) { + MMPTR(0xe0004004) = value; +} +#define CSR_SDRAM_DFII_PI0_COMMAND_ISSUE_ADDR 0xe0004008 +#define CSR_SDRAM_DFII_PI0_COMMAND_ISSUE_SIZE 1 +static inline unsigned char sdram_dfii_pi0_command_issue_read(void) { + unsigned char r = MMPTR(0xe0004008); + return r; +} +static inline void sdram_dfii_pi0_command_issue_write(unsigned char value) { + MMPTR(0xe0004008) = value; +} +#define CSR_SDRAM_DFII_PI0_ADDRESS_ADDR 0xe000400c +#define CSR_SDRAM_DFII_PI0_ADDRESS_SIZE 2 +static inline unsigned short int sdram_dfii_pi0_address_read(void) { + unsigned short int r = MMPTR(0xe000400c); + r <<= 8; + r |= MMPTR(0xe0004010); + return r; +} +static inline void sdram_dfii_pi0_address_write(unsigned short int value) { + MMPTR(0xe000400c) = value >> 8; + MMPTR(0xe0004010) = value; +} +#define CSR_SDRAM_DFII_PI0_BADDRESS_ADDR 0xe0004014 +#define CSR_SDRAM_DFII_PI0_BADDRESS_SIZE 1 +static inline unsigned char sdram_dfii_pi0_baddress_read(void) { + unsigned char r = MMPTR(0xe0004014); + return r; +} +static inline void sdram_dfii_pi0_baddress_write(unsigned char value) { + MMPTR(0xe0004014) = value; +} +#define CSR_SDRAM_DFII_PI0_WRDATA_ADDR 0xe0004018 +#define CSR_SDRAM_DFII_PI0_WRDATA_SIZE 2 +static inline unsigned short int sdram_dfii_pi0_wrdata_read(void) { + unsigned short int r = MMPTR(0xe0004018); + r <<= 8; + r |= MMPTR(0xe000401c); + return r; +} +static inline void sdram_dfii_pi0_wrdata_write(unsigned short int value) { + MMPTR(0xe0004018) = value >> 8; + MMPTR(0xe000401c) = value; +} +#define CSR_SDRAM_DFII_PI0_RDDATA_ADDR 0xe0004020 +#define CSR_SDRAM_DFII_PI0_RDDATA_SIZE 2 +static inline unsigned short int sdram_dfii_pi0_rddata_read(void) { + unsigned short int r = MMPTR(0xe0004020); + r <<= 8; + r |= MMPTR(0xe0004024); + return r; +} + +/* timer0 */ +#define CSR_TIMER0_BASE 0xe0002000 +#define CSR_TIMER0_LOAD_ADDR 0xe0002000 +#define CSR_TIMER0_LOAD_SIZE 4 +static inline unsigned int timer0_load_read(void) { + unsigned int r = MMPTR(0xe0002000); + r <<= 8; + r |= MMPTR(0xe0002004); + r <<= 8; + r |= MMPTR(0xe0002008); + r <<= 8; + r |= MMPTR(0xe000200c); + return r; +} +static inline void timer0_load_write(unsigned int value) { + MMPTR(0xe0002000) = value >> 24; + MMPTR(0xe0002004) = value >> 16; + MMPTR(0xe0002008) = value >> 8; + MMPTR(0xe000200c) = value; +} +#define CSR_TIMER0_RELOAD_ADDR 0xe0002010 +#define CSR_TIMER0_RELOAD_SIZE 4 +static inline unsigned int timer0_reload_read(void) { + unsigned int r = MMPTR(0xe0002010); + r <<= 8; + r |= MMPTR(0xe0002014); + r <<= 8; + r |= MMPTR(0xe0002018); + r <<= 8; + r |= MMPTR(0xe000201c); + return r; +} +static inline void timer0_reload_write(unsigned int value) { + MMPTR(0xe0002010) = value >> 24; + MMPTR(0xe0002014) = value >> 16; + MMPTR(0xe0002018) = value >> 8; + MMPTR(0xe000201c) = value; +} +#define CSR_TIMER0_EN_ADDR 0xe0002020 +#define CSR_TIMER0_EN_SIZE 1 +static inline unsigned char timer0_en_read(void) { + unsigned char r = MMPTR(0xe0002020); + return r; +} +static inline void timer0_en_write(unsigned char value) { + MMPTR(0xe0002020) = value; +} +#define CSR_TIMER0_UPDATE_VALUE_ADDR 0xe0002024 +#define CSR_TIMER0_UPDATE_VALUE_SIZE 1 +static inline unsigned char timer0_update_value_read(void) { + unsigned char r = MMPTR(0xe0002024); + return r; +} +static inline void timer0_update_value_write(unsigned char value) { + MMPTR(0xe0002024) = value; +} +#define CSR_TIMER0_VALUE_ADDR 0xe0002028 +#define CSR_TIMER0_VALUE_SIZE 4 +static inline unsigned int timer0_value_read(void) { + unsigned int r = MMPTR(0xe0002028); + r <<= 8; + r |= MMPTR(0xe000202c); + r <<= 8; + r |= MMPTR(0xe0002030); + r <<= 8; + r |= MMPTR(0xe0002034); + return r; +} +#define CSR_TIMER0_EV_STATUS_ADDR 0xe0002038 +#define CSR_TIMER0_EV_STATUS_SIZE 1 +static inline unsigned char timer0_ev_status_read(void) { + unsigned char r = MMPTR(0xe0002038); + return r; +} +static inline void timer0_ev_status_write(unsigned char value) { + MMPTR(0xe0002038) = value; +} +#define CSR_TIMER0_EV_PENDING_ADDR 0xe000203c +#define CSR_TIMER0_EV_PENDING_SIZE 1 +static inline unsigned char timer0_ev_pending_read(void) { + unsigned char r = MMPTR(0xe000203c); + return r; +} +static inline void timer0_ev_pending_write(unsigned char value) { + MMPTR(0xe000203c) = value; +} +#define CSR_TIMER0_EV_ENABLE_ADDR 0xe0002040 +#define CSR_TIMER0_EV_ENABLE_SIZE 1 +static inline unsigned char timer0_ev_enable_read(void) { + unsigned char r = MMPTR(0xe0002040); + return r; +} +static inline void timer0_ev_enable_write(unsigned char value) { + MMPTR(0xe0002040) = value; +} + +/* uart */ +#define CSR_UART_BASE 0xe0001000 +#define CSR_UART_RXTX_ADDR 0xe0001000 +#define CSR_UART_RXTX_SIZE 1 +static inline unsigned char uart_rxtx_read(void) { + unsigned char r = MMPTR(0xe0001000); + return r; +} +static inline void uart_rxtx_write(unsigned char value) { + MMPTR(0xe0001000) = value; +} +#define CSR_UART_TXFULL_ADDR 0xe0001004 +#define CSR_UART_TXFULL_SIZE 1 +static inline unsigned char uart_txfull_read(void) { + unsigned char r = MMPTR(0xe0001004); + return r; +} +#define CSR_UART_RXEMPTY_ADDR 0xe0001008 +#define CSR_UART_RXEMPTY_SIZE 1 +static inline unsigned char uart_rxempty_read(void) { + unsigned char r = MMPTR(0xe0001008); + return r; +} +#define CSR_UART_EV_STATUS_ADDR 0xe000100c +#define CSR_UART_EV_STATUS_SIZE 1 +static inline unsigned char uart_ev_status_read(void) { + unsigned char r = MMPTR(0xe000100c); + return r; +} +static inline void uart_ev_status_write(unsigned char value) { + MMPTR(0xe000100c) = value; +} +#define CSR_UART_EV_PENDING_ADDR 0xe0001010 +#define CSR_UART_EV_PENDING_SIZE 1 +static inline unsigned char uart_ev_pending_read(void) { + unsigned char r = MMPTR(0xe0001010); + return r; +} +static inline void uart_ev_pending_write(unsigned char value) { + MMPTR(0xe0001010) = value; +} +#define CSR_UART_EV_ENABLE_ADDR 0xe0001014 +#define CSR_UART_EV_ENABLE_SIZE 1 +static inline unsigned char uart_ev_enable_read(void) { + unsigned char r = MMPTR(0xe0001014); + return r; +} +static inline void uart_ev_enable_write(unsigned char value) { + MMPTR(0xe0001014) = value; +} + +/* uart_phy */ +#define CSR_UART_PHY_BASE 0xe0000800 +#define CSR_UART_PHY_TUNING_WORD_ADDR 0xe0000800 +#define CSR_UART_PHY_TUNING_WORD_SIZE 4 +static inline unsigned int uart_phy_tuning_word_read(void) { + unsigned int r = MMPTR(0xe0000800); + r <<= 8; + r |= MMPTR(0xe0000804); + r <<= 8; + r |= MMPTR(0xe0000808); + r <<= 8; + r |= MMPTR(0xe000080c); + return r; +} +static inline void uart_phy_tuning_word_write(unsigned int value) { + MMPTR(0xe0000800) = value >> 24; + MMPTR(0xe0000804) = value >> 16; + MMPTR(0xe0000808) = value >> 8; + MMPTR(0xe000080c) = value; +} + +/* constants */ +#define UART_INTERRUPT 0 +#define TIMER0_INTERRUPT 1 +#define SYSTEM_CLOCK_FREQUENCY 80000000 +#define L2_SIZE 8192 + +#endif diff --git a/configs/misoc/include/generated/mem.h b/configs/misoc/include/generated/mem.h new file mode 100644 index 00000000000..7b6839d2a94 --- /dev/null +++ b/configs/misoc/include/generated/mem.h @@ -0,0 +1,13 @@ +#ifndef __GENERATED_MEM_H +#define __GENERATED_MEM_H + +#define ROM_BASE 0x00000000 +#define ROM_SIZE 0x00008000 + +#define SRAM_BASE 0x10000000 +#define SRAM_SIZE 0x00001000 + +#define MAIN_RAM_BASE 0x40000000 +#define MAIN_RAM_SIZE 0x00800000 + +#endif diff --git a/configs/misoc/include/generated/output_format.ld b/configs/misoc/include/generated/output_format.ld new file mode 100644 index 00000000000..72acc74d0f7 --- /dev/null +++ b/configs/misoc/include/generated/output_format.ld @@ -0,0 +1 @@ +OUTPUT_FORMAT("elf32-lm32") diff --git a/configs/misoc/include/generated/regions.ld b/configs/misoc/include/generated/regions.ld new file mode 100644 index 00000000000..eb3a45be98b --- /dev/null +++ b/configs/misoc/include/generated/regions.ld @@ -0,0 +1,5 @@ +MEMORY { + rom : ORIGIN = 0x00000000, LENGTH = 0x00008000 + sram : ORIGIN = 0x10000000, LENGTH = 0x00001000 + main_ram : ORIGIN = 0x40000000, LENGTH = 0x00800000 +} diff --git a/configs/misoc/include/generated/sdram_phy.h b/configs/misoc/include/generated/sdram_phy.h new file mode 100644 index 00000000000..9fa49eec22c --- /dev/null +++ b/configs/misoc/include/generated/sdram_phy.h @@ -0,0 +1,80 @@ +#ifndef __GENERATED_SDRAM_PHY_H +#define __GENERATED_SDRAM_PHY_H +#include +#include +#include + +#define DFII_NPHASES 1 + +static void cdelay(int i); + +static void command_p0(int cmd) +{ + sdram_dfii_pi0_command_write(cmd); + sdram_dfii_pi0_command_issue_write(1); +} + + +#define sdram_dfii_pird_address_write(X) sdram_dfii_pi0_address_write(X) +#define sdram_dfii_piwr_address_write(X) sdram_dfii_pi0_address_write(X) + +#define sdram_dfii_pird_baddress_write(X) sdram_dfii_pi0_baddress_write(X) +#define sdram_dfii_piwr_baddress_write(X) sdram_dfii_pi0_baddress_write(X) + +#define command_prd(X) command_p0(X) +#define command_pwr(X) command_p0(X) + +#define DFII_PIX_DATA_SIZE CSR_SDRAM_DFII_PI0_WRDATA_SIZE + +const unsigned int sdram_dfii_pix_wrdata_addr[1] = { + CSR_SDRAM_DFII_PI0_WRDATA_ADDR +}; + +const unsigned int sdram_dfii_pix_rddata_addr[1] = { + CSR_SDRAM_DFII_PI0_RDDATA_ADDR +}; + +static void init_sequence(void) +{ + /* Bring CKE high */ + sdram_dfii_pi0_address_write(0x0); + sdram_dfii_pi0_baddress_write(0); + sdram_dfii_control_write(DFII_CONTROL_CKE|DFII_CONTROL_ODT|DFII_CONTROL_RESET_N); + cdelay(20000); + + /* Precharge All */ + sdram_dfii_pi0_address_write(0x400); + sdram_dfii_pi0_baddress_write(0); + command_p0(DFII_COMMAND_RAS|DFII_COMMAND_WE|DFII_COMMAND_CS); + + /* Load Mode Register / Reset DLL, CL=2, BL=1 */ + sdram_dfii_pi0_address_write(0x120); + sdram_dfii_pi0_baddress_write(0); + command_p0(DFII_COMMAND_RAS|DFII_COMMAND_CAS|DFII_COMMAND_WE|DFII_COMMAND_CS); + cdelay(200); + + /* Precharge All */ + sdram_dfii_pi0_address_write(0x400); + sdram_dfii_pi0_baddress_write(0); + command_p0(DFII_COMMAND_RAS|DFII_COMMAND_WE|DFII_COMMAND_CS); + + /* Auto Refresh */ + sdram_dfii_pi0_address_write(0x0); + sdram_dfii_pi0_baddress_write(0); + command_p0(DFII_COMMAND_RAS|DFII_COMMAND_CAS|DFII_COMMAND_CS); + cdelay(4); + + /* Auto Refresh */ + sdram_dfii_pi0_address_write(0x0); + sdram_dfii_pi0_baddress_write(0); + command_p0(DFII_COMMAND_RAS|DFII_COMMAND_CAS|DFII_COMMAND_CS); + cdelay(4); + + /* Load Mode Register / CL=2, BL=1 */ + sdram_dfii_pi0_address_write(0x20); + sdram_dfii_pi0_baddress_write(0); + command_p0(DFII_COMMAND_RAS|DFII_COMMAND_CAS|DFII_COMMAND_WE|DFII_COMMAND_CS); + cdelay(200); + +} +#endif diff --git a/configs/misoc/include/generated/variables.mak b/configs/misoc/include/generated/variables.mak new file mode 100644 index 00000000000..a5e6478ad4e --- /dev/null +++ b/configs/misoc/include/generated/variables.mak @@ -0,0 +1,11 @@ +TRIPLE=lm32-elf +CPU=lm32 +CPUFLAGS=-mbarrel-shift-enabled -mmultiply-enabled -mdivide-enabled -msign-extend-enabled +CPUENDIANNESS=big +CLANG=0 +SOC_DIRECTORY=/usr/local/lib/python3.5/dist-packages/litex-0.1-py3.5.egg/litex/soc +BUILDINC_DIRECTORY=/home/lenovo/fpga/litex/litex/boards/targets/soc_basesoc_papilio_pro/software/include +LIBBASE_DIRECTORY=/usr/local/lib/python3.5/dist-packages/litex-0.1-py3.5.egg/litex/soc/software/libbase +LIBCOMPILER_RT_DIRECTORY=/usr/local/lib/python3.5/dist-packages/litex-0.1-py3.5.egg/litex/soc/software/libcompiler_rt +LIBNET_DIRECTORY=/usr/local/lib/python3.5/dist-packages/litex-0.1-py3.5.egg/litex/soc/software/libnet +BIOS_DIRECTORY=/usr/local/lib/python3.5/dist-packages/litex-0.1-py3.5.egg/litex/soc/software/bios diff --git a/configs/misoc/scripts/ld.script b/configs/misoc/scripts/ld.script new file mode 100644 index 00000000000..0a3aa7e3d02 --- /dev/null +++ b/configs/misoc/scripts/ld.script @@ -0,0 +1,97 @@ +/**************************************************************************** + * configs/misoc/hello/script/ld.script + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +OUTPUT_FORMAT("elf32-lm32") +ENTRY(_stext) + +/*INCLUDE configs/misoc/include/generated/regions.ld*/ +MEMORY +{ + rom : ORIGIN = 0x00000000, LENGTH = 0x00008000 + sram : ORIGIN = 0x10000000, LENGTH = 0x00004000 + main_ram : ORIGIN = 0x40000000, LENGTH = 0x00080000 +} + +SECTIONS +{ + .text : { + _stext = ABSOLUTE(.); + *(.vectors) + *(.text .text.*) + *(.fixup) + *(.gnu.warning) + *(.rodata .rodata.*) + *(.gnu.linkonce.t.*) + *(.glue_7) + *(.glue_7t) + *(.got) + *(.gcc_except_table) + *(.gnu.linkonce.r.*) + _etext = ABSOLUTE(.); + } > main_ram + + _eronly = ABSOLUTE(.); /* See below */ + + .data : { + _sdata = ABSOLUTE(.); + *(.data .data.*) + *(.gnu.linkonce.d.*) + CONSTRUCTORS + _edata = ABSOLUTE(.); + } > main_ram + + .bss : { /* BSS */ + _sbss = ABSOLUTE(.); + *(.bss .bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + _ebss = ABSOLUTE(.); + } > main_ram + /* Stabs debugging sections. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } + .stab.indexstr 0 : { *(.stab.indexstr) } + .comment 0 : { *(.comment) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_info 0 : { *(.debug_info) } + .debug_line 0 : { *(.debug_line) } + .debug_pubnames 0 : { *(.debug_pubnames) } + .debug_aranges 0 : { *(.debug_aranges) } +} + +PROVIDE(_fstack = ORIGIN(main_ram) + LENGTH(main_ram) - 4); diff --git a/configs/misoc/src/.gitignore b/configs/misoc/src/.gitignore new file mode 100644 index 00000000000..726d936e1e3 --- /dev/null +++ b/configs/misoc/src/.gitignore @@ -0,0 +1,2 @@ +/.depend +/Make.dep diff --git a/configs/misoc/src/Makefile b/configs/misoc/src/Makefile new file mode 100644 index 00000000000..0607a11ed37 --- /dev/null +++ b/configs/misoc/src/Makefile @@ -0,0 +1,42 @@ +############################################################################ +# configs/misoc/src/Makefile +# +# Copyright (C) 2016 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt +# Ramtin Amin +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# 3. Neither the name NuttX nor the names of its contributors may be +# used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# +############################################################################ + +-include $(TOPDIR)/Make.defs + +ASRCS = +CSRCS = lm32_boot.c + +include $(TOPDIR)/configs/Board.mk diff --git a/configs/misoc/src/lm32_boot.c b/configs/misoc/src/lm32_boot.c new file mode 100644 index 00000000000..8d23d5dc632 --- /dev/null +++ b/configs/misoc/src/lm32_boot.c @@ -0,0 +1,68 @@ +/************************************************************************************ + * configs/misoc/src/lm32_boot.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ************************************************************************************/ + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include + +#include + +#include + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +/************************************************************************************ + * Name: lm32_board_initialize + * + * Description: + * All LM32 architectures must provide the following entry point. This entry + * point is called early in the initialization -- after all memory has been + * configured and mapped but before any devices have been initialized. + * + ************************************************************************************/ + +void lm32_board_initialize(void) +{ + /* Configure SSP chip selects if 1) at least one SSP is enabled, and 2) the weak + * function atmega_spidev_initialize() has been brought into the link. + */ + + /* Configure on-board LEDs if LED support has been selected. */ +} diff --git a/configs/misoc/src/misoc.h b/configs/misoc/src/misoc.h new file mode 100644 index 00000000000..24fe09a4520 --- /dev/null +++ b/configs/misoc/src/misoc.h @@ -0,0 +1,102 @@ +/**************************************************************************** + * configs/misoc/src/misoc.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __CONFIGS_MISOC_SRC_MISOC_H +#define __CONFIGS_MISOC_SRC_MISOC_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +/**************************************************************************** + * Inline Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#ifdef __cplusplus +#define EXTERN extern "C" +extern "C" +{ +#else +#define EXTERN extern +#endif + +/************************************************************************************ + * Name: lm32_spidev_initialize + * + * Description: + * Called to configure SPI chip select GPIO pins for the Amber Web Server. + * + ************************************************************************************/ + +#if defined(CONFIG_AVR_SPI1) || defined(CONFIG_AVR_SPI2) +void weak_function lm32_spidev_initialize(void); +#endif + +/************************************************************************************ + * Name: lm32_led_initialize + * + * Description: + * Configure on-board LEDs if LED support has been selected. + * + ************************************************************************************/ + +#ifdef CONFIG_ARCH_LEDS +void lm32_led_initialize(void); +#endif + +#undef EXTERN +#ifdef __cplusplus +} +#endif + +#endif /* __ASSEMBLY__ */ +#endif /* __CONFIGS_MISOC_SRC_MISOC_H */