mirror of
https://github.com/apache/nuttx.git
synced 2026-05-22 05:42:05 +08:00
Obsolete support for the 8051 family. Trying to maintain compatibility with this family is too much effort and there has never really been a successful NuttX impplementation on these parts
This commit is contained in:
Gregory Nutt
@@ -1,48 +0,0 @@
|
||||
#
|
||||
# For a description of the syntax of this configuration file,
|
||||
# see misc/tools/kconfig-language.txt.
|
||||
#
|
||||
|
||||
if ARCH_8051
|
||||
comment "ARM Options"
|
||||
|
||||
choice
|
||||
prompt "8051 Chip Selection"
|
||||
default ARCH_CHIP_8052
|
||||
|
||||
config ARCH_CHIP_8051
|
||||
bool "8051"
|
||||
|
||||
config ARCH_CHIP_8052
|
||||
bool "8052"
|
||||
|
||||
endchoice # 8051 Chip Selection
|
||||
|
||||
comment "Bring-up Debug Options"
|
||||
|
||||
config ARCH_8051_BRINGUP
|
||||
bool "Bring-up debug"
|
||||
default n
|
||||
---help---
|
||||
Enable bring-up debug instrumentation
|
||||
|
||||
config ARCH_8051_NOSYSTIMER
|
||||
bool "No system timer"
|
||||
---help---
|
||||
By default, Timer0 will be used as the system timer. Use of the
|
||||
system timer can be suppressed with the setting. This is useful
|
||||
during bring-up.
|
||||
|
||||
config ARCH_8051_BRINGUP
|
||||
bool "Bring-up debug"
|
||||
default n
|
||||
---help---
|
||||
Enable bring-up debug instrumentation
|
||||
|
||||
config ARCH_8051_SUPRESS_INTERRUPTS
|
||||
bool "Suppress interrupts"
|
||||
default n
|
||||
---help---
|
||||
It is useful during low-level bring-up to suppress all interrupts.
|
||||
|
||||
endif # ARCH_8051
|
||||
@@ -1,86 +0,0 @@
|
||||
/************************************************************************
|
||||
* arch.h
|
||||
*
|
||||
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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/arch.h
|
||||
*/
|
||||
|
||||
#ifndef __ARCH_ARCH_H
|
||||
#define __ARCH_ARCH_H
|
||||
|
||||
/************************************************************************
|
||||
* Included Files
|
||||
************************************************************************/
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
/************************************************************************
|
||||
* Definitions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Public Types
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Public Variables
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Public Function Prototypes
|
||||
************************************************************************/
|
||||
|
||||
#ifdef __cplusplus
|
||||
#define EXTERN extern "C"
|
||||
extern "C"
|
||||
{
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/* The 805x family has a tiny, 256 stack and can be easily
|
||||
* overflowed. The following macro can be used to instrument
|
||||
* code to dump the stack pointer at critical locations.
|
||||
*/
|
||||
|
||||
void up_showsp(uint8_t ch) __naked;
|
||||
|
||||
#undef EXTERN
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ARCH_ARCH_H */
|
||||
|
||||
@@ -1,206 +0,0 @@
|
||||
/************************************************************************
|
||||
* irq.h
|
||||
*
|
||||
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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_IRQ_H
|
||||
#define __ARCH_IRQ_H
|
||||
|
||||
/************************************************************************
|
||||
* Included Files
|
||||
************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#ifndef __ASSEMBLY__
|
||||
# include <stdint.h>
|
||||
#endif
|
||||
|
||||
/************************************************************************
|
||||
* Definitions
|
||||
************************************************************************/
|
||||
|
||||
#define EXT_INT0_IRQ 0
|
||||
#define TIMER0_IRQ 1
|
||||
#define EXT_INT1_IRQ 2
|
||||
#define TIMER1_IRQ 3
|
||||
#define UART_IRQ 4
|
||||
#define TIMER2_IRQ 5
|
||||
|
||||
#define NR_IRQS 6
|
||||
|
||||
/* The stack for all tasks/threads lie at the same position
|
||||
* in IRAM. On context switches, the STACK contents will be
|
||||
* copied into the TCB.
|
||||
*/
|
||||
|
||||
#define IRAM_BASE 0x0000
|
||||
#ifdef CONFIG_ARCH_CHIP_8052
|
||||
# define IRAM_SIZE 0x0100
|
||||
#else
|
||||
# define IRAM_SIZE 0x0080
|
||||
#endif
|
||||
|
||||
#define STACK_BASE 0x0024
|
||||
#define STACK_SIZE (IRAM_SIZE - STACK_BASE)
|
||||
|
||||
/* This is the form of initial stack frame
|
||||
*
|
||||
* This initial stack frame will be configured to hold.
|
||||
* (1) The 16-bit return address of either:
|
||||
*
|
||||
* void task_start(void);
|
||||
* void pthread_start(void)
|
||||
*
|
||||
* The return address is stored at the top of stack.
|
||||
* so that the RETI instruction will work:
|
||||
*
|
||||
* PC15-8 <- ((SP))
|
||||
* (SP) <- (SP) -1
|
||||
* PC7-0 <- ((SP))
|
||||
* (SP) <- (SP) -1
|
||||
*/
|
||||
|
||||
#define FRAME_RETLS 0
|
||||
#define FRAME_RETMS 1
|
||||
|
||||
/* Then a partial context context save area that can be
|
||||
* indexed with the following definitions (relative to the
|
||||
* beginning of the initial frame.
|
||||
*/
|
||||
|
||||
#define FRAME_ACC 2
|
||||
#define FRAME_IE 3
|
||||
#define FRAME_DPL 4
|
||||
#define FRAME_DPH 5
|
||||
|
||||
#define FRAME_SIZE 6
|
||||
|
||||
/* The remaining registers are not saved on the stack (due
|
||||
* to the limited stack size of the 8051/2) but in an array
|
||||
* in the TCB:
|
||||
*/
|
||||
|
||||
#define REGS_B 0
|
||||
#define REGS_R2 1
|
||||
#define REGS_R3 2
|
||||
#define REGS_R4 3
|
||||
#define REGS_R5 4
|
||||
#define REGS_R6 5
|
||||
#define REGS_R7 6
|
||||
#define REGS_R0 7
|
||||
#define REGS_R1 8
|
||||
#define REGS_PSW 9
|
||||
#define REGS_BP 10
|
||||
|
||||
#define REGS_SIZE 11
|
||||
|
||||
/* Note that the stack pointer is not saved. Rather, the
|
||||
* size of the saved stack frame is saved in the 'nbytes'
|
||||
* field. Since that stack begins at a fixed location, the
|
||||
* top-of-stack pointer can be derived from the saved size.
|
||||
*/
|
||||
|
||||
/* These are offsets into struct xcptcontext that can be
|
||||
* used from assembly language to access the structure.
|
||||
*/
|
||||
|
||||
#define XCPT_NBYTES 0
|
||||
#define XCPT_STACK 1
|
||||
#define XCPT_REGS (STACK_SIZE+1)
|
||||
|
||||
#define XCPT_SIZE (STACK_SIZE+REGS_SIZE+1)
|
||||
|
||||
/************************************************************************
|
||||
* Public Types
|
||||
************************************************************************/
|
||||
|
||||
/* This struct defines the way the registers are stored */
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
struct xcptcontext
|
||||
{
|
||||
/* This is the number of valid bytes currently saved in
|
||||
* stack[]. Since that stack begins at a fixed location,
|
||||
* the top-of-stack pointer can be derived from this size.
|
||||
*/
|
||||
|
||||
uint8_t nbytes;
|
||||
|
||||
/* This is the saved stack. Space is allocated for the
|
||||
* entire 256 byte IRAM (minus register and bit usage at
|
||||
* the beginning).
|
||||
*/
|
||||
|
||||
uint8_t stack[STACK_SIZE];
|
||||
|
||||
/* These are save 8051/2 registers. These are saved
|
||||
* separately from the stack to increase the effective
|
||||
* stack size.
|
||||
*/
|
||||
|
||||
uint8_t regs[REGS_SIZE];
|
||||
};
|
||||
#endif /* __ASSEMBLY */
|
||||
|
||||
/************************************************************************
|
||||
* Public Variables
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Public Function Prototypes
|
||||
************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
#ifdef __cplusplus
|
||||
#define EXTERN extern "C"
|
||||
extern "C" {
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
EXTERN irqstate_t irqsave(void);
|
||||
EXTERN void irqrestore(irqstate_t flags);
|
||||
|
||||
#undef EXTERN
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY */
|
||||
#endif /* __ARCH_IRQ_H */
|
||||
|
||||
@@ -1,84 +0,0 @@
|
||||
/************************************************************
|
||||
* arch/8051/include/limits.h
|
||||
*
|
||||
* Copyright (C) 2007, 2009, 2011-2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 Gregory Nutt 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_8051_INCLUDE_LIMITS_H
|
||||
#define __ARCH_8051_INCLUDE_LIMITS_H
|
||||
|
||||
/************************************************************
|
||||
* Included Files
|
||||
************************************************************/
|
||||
|
||||
/************************************************************
|
||||
* 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
|
||||
|
||||
#define INT_MIN (-INT_MAX - 1)
|
||||
#define INT_MAX 32767
|
||||
#define UINT_MAX 65535U
|
||||
|
||||
/* These change on 32-bit and 64-bit platforms */
|
||||
|
||||
#define LONG_MIN (-LONG_MAX - 1)
|
||||
#define LONG_MAX 2147483647L
|
||||
#define ULONG_MAX 4294967295UL
|
||||
|
||||
/* For SDCC, a Generic pointer is 3 bytes in length with the
|
||||
* first byte holding data space information.
|
||||
*/
|
||||
|
||||
#define PTR_MIN (-PTR_MAX - 1)
|
||||
#define PTR_MAX 8388607
|
||||
#define UPTR_MAX 16777215U
|
||||
|
||||
#endif /* __ARCH_8051_INCLUDE_LIMITS_H */
|
||||
@@ -1,82 +0,0 @@
|
||||
/****************************************************************************
|
||||
* arch/8051/include/syscall.h
|
||||
*
|
||||
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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_8051_INCLUDE_SYSCALL_H
|
||||
#define __ARCH_8051_INCLUDE_SYSCALL_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Inline functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Variables
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* 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_8051_INCLUDE_SYSCALL_H */
|
||||
|
||||
@@ -1,98 +0,0 @@
|
||||
/************************************************************************
|
||||
* arch/8051/include/types.h
|
||||
*
|
||||
* Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 sys/types.h
|
||||
*/
|
||||
|
||||
#ifndef __ARCH_8051_INCLUDE_TYPES_H
|
||||
#define __ARCH_8051_INCLUDE_TYPES_H
|
||||
|
||||
/************************************************************************
|
||||
* Included Files
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* 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
|
||||
*
|
||||
*
|
||||
* For SDCC, sizeof(int) is 16 and sizeof(long) is 32.
|
||||
* long long and double are not supported.
|
||||
*/
|
||||
|
||||
typedef signed char _int8_t;
|
||||
typedef unsigned char _uint8_t;
|
||||
|
||||
typedef signed int _int16_t;
|
||||
typedef unsigned int _uint16_t;
|
||||
|
||||
typedef signed long _int32_t;
|
||||
typedef unsigned long _uint32_t;
|
||||
|
||||
/* For SDCC, a Generic pointer is 3 bytes in length with the
|
||||
* first byte holding data space information.
|
||||
*/
|
||||
|
||||
typedef signed long _intptr_t;
|
||||
typedef unsigned long _uintptr_t;
|
||||
|
||||
/* This is the size of the interrupt state save returned by
|
||||
* irqsave()
|
||||
*/
|
||||
|
||||
typedef unsigned char irqstate_t;
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
|
||||
/************************************************************************
|
||||
* Global Function Prototypes
|
||||
************************************************************************/
|
||||
|
||||
#endif /* __ARCH_8051_INCLUDE_TYPES_H */
|
||||
@@ -1,16 +0,0 @@
|
||||
Make.dep
|
||||
.depend
|
||||
up_mem.h
|
||||
*.sym
|
||||
*.asm
|
||||
*.rel
|
||||
*.lst
|
||||
*.adb
|
||||
*.rst
|
||||
*.lib
|
||||
*.lnk
|
||||
*.map
|
||||
*.mem
|
||||
*.ihx
|
||||
*.hex
|
||||
|
||||
@@ -1,54 +0,0 @@
|
||||
############################################################################
|
||||
# arch/8051/src/Makefile
|
||||
#
|
||||
# Copyright (C) 2007, 2008, 2011-2012 Gregory Nutt. All rights reserved.
|
||||
# Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
#
|
||||
# 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.
|
||||
#
|
||||
############################################################################
|
||||
|
||||
# Makefile fragments
|
||||
|
||||
-include $(TOPDIR)/Make.defs
|
||||
-include chip/Make.defs
|
||||
-include board/Make.defs
|
||||
|
||||
# Check for SDCC native windows build
|
||||
|
||||
ifeq ($(CONFIG_WINDOWS_NATIVE),y)
|
||||
|
||||
# SDCC Windows native build
|
||||
|
||||
include Makefile.sdccw
|
||||
else
|
||||
|
||||
# SDCC in a POSIX environment (Linux, OSX, or Cygwin/MSYS)
|
||||
|
||||
include Makefile.sdccl
|
||||
endif
|
||||
@@ -1,278 +0,0 @@
|
||||
############################################################################
|
||||
# arch/8051/src/Makefile.sdccl
|
||||
#
|
||||
# Copyright (C) 2007, 2008, 2011-2012, 2014 Gregory Nutt. All rights reserved.
|
||||
# Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
#
|
||||
# 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
|
||||
|
||||
# Tools
|
||||
# CFLAGS, CPPFLAGS, ASFLAGS, LDFLAGS are set in $(TOPDIR)/Make.defs
|
||||
|
||||
CFLAGS += -I$(TOPDIR)/sched
|
||||
CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -D__ASSEMBLY__
|
||||
|
||||
LDFLAGS += --model-large --nostdlib --data-loc $(DEF_STACK_BASE) \
|
||||
--iram-size $(IRAM_SIZE) --code-loc 0x2100 --code-size 0x5f40 \
|
||||
--xram-loc $(IRAM_SIZE) --xram-size 0x1f00
|
||||
|
||||
# Files and directories
|
||||
# There should be one head source (.asm file)
|
||||
|
||||
HEAD_SSRC = up_head.S
|
||||
HEAD_ASRC = $(HEAD_SSRC:.S=$(ASMEXT))
|
||||
HEAD_OBJ = $(HEAD_ASRC:$(ASMEXT)=$(OBJEXT))
|
||||
|
||||
# Assembly sources and objects
|
||||
|
||||
SSRCS =
|
||||
ASRCS = $(SSRCS:.S=$(ASMEXT))
|
||||
AOBJS = $(ASRCS:$(ASMEXT)=$(OBJEXT))
|
||||
|
||||
# C sources and objects
|
||||
|
||||
CSRCS = up_initialize.c up_idle.c up_interruptcontext.c up_initialstate.c \
|
||||
up_unblocktask.c up_blocktask.c up_releasepending.c \
|
||||
up_reprioritizertr.c up_exit.c up_assert.c up_allocateheap.c \
|
||||
up_irq.c up_savecontext.c up_restorecontext.c up_putc.c \
|
||||
up_debug.c up_delay.c
|
||||
|
||||
ifneq ($(CONFIG_SCHED_TICKLESS),y)
|
||||
CSRCS += up_timerisr.c
|
||||
endif
|
||||
|
||||
COBJS = $(CSRCS:.c=$(OBJEXT))
|
||||
|
||||
# All sources and objcts
|
||||
|
||||
SRCS = $(SSRCS) $(CSRCS)
|
||||
OBJS = $(AOBJS) $(COBJS)
|
||||
|
||||
DEPSRCS = $(SRCS) $(HEAD_SSRC)
|
||||
|
||||
# Board path
|
||||
|
||||
BOARDDIR = $(TOPDIR)/arch/$(CONFIG_ARCH)/src/board
|
||||
|
||||
# Source path
|
||||
|
||||
VPATH = chip:common:board
|
||||
|
||||
# Libraries
|
||||
|
||||
SDCCLIBS = -llibfloat.lib -llibint.lib -lliblong.lib -llibmysdcc.lib -lmcs51.lib
|
||||
|
||||
LINKLIBS ?=
|
||||
LIBPATHS = -L"$(TOPDIR)/lib"
|
||||
LDLIBS = $(patsubst %.a,%,$(patsubst lib%,-l%,$(LINKLIBS)))
|
||||
|
||||
# Test sources
|
||||
|
||||
TESTSRCS = up_irqtest.c
|
||||
TESTOBJS = $(TESTSRCS:.c=$(OBJEXT))
|
||||
TESTLINKOBJS = up_head$(OBJEXT)
|
||||
TESTEXTRAOBJS = up_savecontext$(OBJEXT) up_restorecontext$(OBJEXT)
|
||||
|
||||
# Memory
|
||||
|
||||
HEAP1_BASE = ${shell \
|
||||
if [ -e pass1.mem ]; then \
|
||||
cat pass1.mem | grep "EXTERNAL RAM" | \
|
||||
sed -e "s/[ ][ ]*/ /g" | cut -d' ' -f5 ; \
|
||||
else \
|
||||
echo $(IRAM_SIZE) ; \
|
||||
fi \
|
||||
}
|
||||
DEF_HEAP2_BASE = 0x6000
|
||||
HEAP2_BASE = ${shell \
|
||||
if [ -e pass1.mem ]; then \
|
||||
cat pass1.mem | grep "ROM/EPROM/FLASH" | \
|
||||
sed -e "s/[ ][ ]*/ /g" | cut -d' ' -f4 ; \
|
||||
else \
|
||||
echo $(DEF_HEAP2_BASE) ; \
|
||||
fi \
|
||||
}
|
||||
STACK_BASE = ${shell \
|
||||
if [ -e pass1.mem ]; then \
|
||||
cat pass1.mem | grep "Stack starts" | \
|
||||
cut -d' ' -f4 ; \
|
||||
else \
|
||||
echo $(DEF_STACK_BASE) ; \
|
||||
fi \
|
||||
}
|
||||
|
||||
# Targets
|
||||
|
||||
all: up_head$(OBJEXT) libarch$(LIBEXT)
|
||||
|
||||
.PHONY: board/libboard$(LIBEXT)
|
||||
|
||||
$(ASRCS) $(HEAD_ASRC): %$(ASMEXT): %.S
|
||||
$(CPP) -P $(CPPFLAGS) $< -o $@
|
||||
|
||||
$(AOBJS) $(HEAD_OBJ): $(ASRCS) $(HEAD_ASRC)
|
||||
$(call ASSEMBLE, $<, $@)
|
||||
|
||||
$(COBJS) $(TESTOBJS): %$(OBJEXT): %.c
|
||||
$(call COMPILE, $<, $@)
|
||||
|
||||
# This is a kludge to work around some conflicting symbols in the SDCC libraries
|
||||
|
||||
$(TOPDIR)/lib/$(SDCCLIB): $(SDCC_LIBDIR)/$(SDCCLIB)
|
||||
$(Q) cp $(SDCC_LIBDIR)/$(SDCCLIB) $(TOPDIR)/lib/$(SDCCLIB)
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _calloc.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _malloc.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _realloc.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _free.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) printf_large.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) sprintf.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) vprintf.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) strcpy.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) strlen.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _strcat.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _strchr.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _strcmp.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _strcspn.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _strncat.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _strncmp.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _strncpy.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _strpbrk.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _strrchr.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _strspn.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _strstr.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _strtok.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _memchr.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _memcmp.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _memcpy.rel
|
||||
$(Q) sdar d $(TOPDIR)/lib/$(SDCCLIB) _memset.rel
|
||||
|
||||
# Create a header file that contains addressing information needed by the code
|
||||
|
||||
up_mem.h: pass1.mem
|
||||
@echo "#ifndef __ARCH_MEM_H" >up_mem.h
|
||||
@echo "#define __ARCH_MEM_H" >>up_mem.h
|
||||
@echo "" >>up_mem.h
|
||||
@echo "#define UP_DEFAULT_STACK_BASE $(DEF_STACK_BASE)" >>up_mem.h
|
||||
@echo "#define UP_DEFAULT_HEAP1_BASE $(IRAM_SIZE)" >> up_mem.h
|
||||
@echo "#define UP_DEFAULT_HEAP2_BASE $(DEF_HEAP2_BASE)" >> up_mem.h
|
||||
@echo "" >>up_mem.h
|
||||
@echo "#define UP_STACK_BASE $(STACK_BASE)" >>up_mem.h
|
||||
@echo "#if UP_STACK_BASE > UP_DEFAULT_STACK_BASE" >>up_mem.h
|
||||
@echo "# error \"Stack overlap: $(DEF_STACK_BASE) < $(STACK_BASE)\"" >>up_mem.h
|
||||
@echo "#elif UP_STACK_BASE < UP_DEFAULT_STACK_BASE" >>up_mem.h
|
||||
@echo "# warning \"Wasted stack: $(DEF_STACK_BASE) > $(STACK_BASE)\"" >>up_mem.h
|
||||
@echo "#endif" >>up_mem.h
|
||||
@echo "" >>up_mem.h
|
||||
@echo "#define UP_HEAP1_BASE $(HEAP1_BASE)" >> up_mem.h
|
||||
@echo "#define UP_HEAP1_END 0x2000" >> up_mem.h
|
||||
@echo "" >>up_mem.h
|
||||
@echo "#define UP_HEAP2_BASE $(HEAP2_BASE)" >> up_mem.h
|
||||
@echo "#define UP_HEAP2_END 0x8000" >> up_mem.h
|
||||
@echo "" >>up_mem.h
|
||||
@echo "#endif /* __ARCH_MEM_H */" >>up_mem.h
|
||||
|
||||
# Combine all objects in this directory into a library
|
||||
|
||||
libarch$(LIBEXT): up_mem.h $(OBJS)
|
||||
$(call ARCHIVE, $@, $(OBJS))
|
||||
|
||||
# This builds the libboard library in the board/ subdirectory
|
||||
|
||||
board/libboard$(LIBEXT):
|
||||
$(Q) $(MAKE) -C board TOPDIR="$(TOPDIR)" libboard$(LIBEXT) EXTRADEFINES=$(EXTRADEFINES)
|
||||
|
||||
# This target builds the final executable
|
||||
|
||||
pass1.hex: up_mem.h $(TOPDIR)/lib/$(SDCCLIB) $(HEAD_OBJ) board/libboard$(LIBEXT)
|
||||
@echo "LD: $@"
|
||||
$(Q) "$(CC)" $(LDFLAGS) $(LIBPATHS) -L$(BOARDDIR) $(SDCCPATH) $(HEAD_OBJ) \
|
||||
$(LDLIBS) -llibboard$(LIBEXT) $(SDCCLIBS) -o $@
|
||||
$(Q) rm -f up_mem.h
|
||||
$(Q) rm -f up_allocateheap$(OBJEXT) libarch$(LIBEXT)
|
||||
$(Q) $(MAKE) TOPDIR=$(TOPDIR) libarch$(LIBEXT)
|
||||
|
||||
nuttx.hex: up_mem.h $(TOPDIR)/lib/$(SDCCLIB) $(HEAD_OBJ)
|
||||
@echo "LD: $@"
|
||||
$(Q) "$(CC)" $(LDFLAGS) $(LIBPATHS) -L$(BOARDDIR) $(SDCCPATH) $(HEAD_OBJ) \
|
||||
$(LDLIBS) -llibboard$(LIBEXT) $(SDCCLIBS) -o $@
|
||||
|
||||
nuttx$(EXEEXT): pass1.hex nuttx.hex
|
||||
$(Q) rm -f pass1.*
|
||||
$(Q) packihx nuttx.hex > $(TOPDIR)/nuttx$(EXEEXT)
|
||||
$(Q) cp -f nuttx.map $(TOPDIR)/.
|
||||
|
||||
# This is part of the top-level export target
|
||||
|
||||
export_head: board/libboard$(LIBEXT) p_head$(OBJEXT)
|
||||
$(Q) if [ -d "$(EXPORT_DIR)/startup" ]; then \
|
||||
cp -f up_head$(OBJEXT) "$(EXPORT_DIR)/startup"; \
|
||||
else \
|
||||
echo "$(EXPORT_DIR)/startup does not exist"; \
|
||||
exit 1; \
|
||||
fi
|
||||
|
||||
# This target builds a test program to verify interrupt context switching. irqtest is
|
||||
# a PHONY target that just sets upt the up_irqtest build correctly
|
||||
|
||||
up_irqtest.hex: $(TESTOBJS)
|
||||
$(Q) "$(CC)" $(LDFLAGS) -L. $(SDCCPATH) $(TESTLINKOBJS) $(TESTOBJS) $(TESTEXTRAOBJS) $(SDCCLIBS) -o $@
|
||||
|
||||
irqtest:
|
||||
$(Q) $(MAKE) TOPDIR=../../.. up_irqtest.hex
|
||||
|
||||
# Build dependencies
|
||||
|
||||
.depend: Makefile up_mem.h $(DEPSRCS)
|
||||
$(Q) if [ -e board/Makefile ]; then \
|
||||
$(MAKE) -C board TOPDIR=$(TOPDIR) depend ; \
|
||||
fi
|
||||
$(Q) $(MKDEP) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
|
||||
$(Q) touch $@
|
||||
|
||||
depend: .depend
|
||||
|
||||
clean:
|
||||
$(Q) if [ -e board/Makefile ]; then \
|
||||
$(MAKE) -C board TOPDIR=$(TOPDIR) clean ; \
|
||||
fi
|
||||
$(call DELFILE, libarch$(LIBEXT))
|
||||
$(call DELFILE, up_mem.h)
|
||||
$(call CLEAN)
|
||||
|
||||
distclean: clean
|
||||
$(Q) if [ -e board/Makefile ]; then \
|
||||
$(MAKE) -C board TOPDIR=$(TOPDIR) distclean ; \
|
||||
fi
|
||||
$(call DELFILE, Make.dep)
|
||||
$(call DELFILE, .depend)
|
||||
|
||||
-include Make.dep
|
||||
@@ -1,89 +0,0 @@
|
||||
/************************************************************
|
||||
* up_allocateheap.c
|
||||
*
|
||||
* Copyright (C) 2007, 2013 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 Gregory Nutt 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 <nuttx/config.h>
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <sched.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <nuttx/kmalloc.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
#include "up_mem.h"
|
||||
|
||||
/************************************************************
|
||||
* Private Definitions
|
||||
************************************************************/
|
||||
|
||||
/************************************************************
|
||||
* Private Data
|
||||
************************************************************/
|
||||
|
||||
/************************************************************
|
||||
* Private Functions
|
||||
************************************************************/
|
||||
|
||||
/************************************************************
|
||||
* Public Functions
|
||||
************************************************************/
|
||||
|
||||
/************************************************************
|
||||
* Name: up_allocate_heap
|
||||
*
|
||||
* Description:
|
||||
* This function will be called to dynamically set aside
|
||||
* the heap region.
|
||||
*
|
||||
************************************************************/
|
||||
|
||||
void up_allocate_heap(FAR void **heap_start, size_t *heap_size)
|
||||
{
|
||||
*heap_start = (FAR void*)UP_HEAP1_BASE;
|
||||
*heap_size = UP_HEAP1_END - UP_HEAP1_BASE;
|
||||
board_led_on(LED_HEAPALLOCATE);
|
||||
}
|
||||
|
||||
#if CONFIG_MM_REGIONS > 1
|
||||
void up_addregion(void)
|
||||
{
|
||||
kmm_addregion((FAR void*)UP_HEAP2_BASE, UP_HEAP2_END - UP_HEAP2_BASE);
|
||||
}
|
||||
#endif
|
||||
@@ -1,145 +0,0 @@
|
||||
/************************************************************************
|
||||
* up_assert.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009, 2012-2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <assert.h>
|
||||
#include <sched.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/usb/usbdev_trace.h>
|
||||
|
||||
#include <8052.h>
|
||||
|
||||
#include "sched/sched.h"
|
||||
#include "up_internal.h"
|
||||
#include "up_mem.h"
|
||||
|
||||
/************************************************************************
|
||||
* Pre-processor Definitions
|
||||
************************************************************************/
|
||||
/* USB trace dumping */
|
||||
|
||||
#ifndef CONFIG_USBDEV_TRACE
|
||||
# undef CONFIG_ARCH_USBDUMP
|
||||
#endif
|
||||
|
||||
/************************************************************************
|
||||
* Private Data
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* 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_irqtos || ((FAR struct tcb_s*)g_readytorun.head)->pid == 0)
|
||||
{
|
||||
(void)irqsave();
|
||||
for (;;)
|
||||
{
|
||||
#ifdef CONFIG_ARCH_LEDS
|
||||
board_led_on(LED_PANIC);
|
||||
up_delay(250);
|
||||
board_led_off(LED_PANIC);
|
||||
up_delay(250);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
exit(errorcode);
|
||||
}
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: assert_tracecallback
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ARCH_USBDUMP
|
||||
static int assert_tracecallback(struct usbtrace_s *trace, void *arg)
|
||||
{
|
||||
usbtrace_trprintf((trprintf_t)lowsyslog, 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
|
||||
struct tcb_s *rtcb = (struct tcb_s*)g_readytorun.head;
|
||||
#endif
|
||||
|
||||
board_led_on(LED_ASSERTION);
|
||||
|
||||
#if CONFIG_TASK_NAME_SIZE > 0
|
||||
lldbg("Assertion failed at file:%s line: %d task: %s\n",
|
||||
filename, lineno, rtcb->name);
|
||||
#else
|
||||
lldbg("Assertion failed at file:%s line: %d\n",
|
||||
filename, lineno);
|
||||
#endif
|
||||
|
||||
up_dumpstack();
|
||||
|
||||
#ifdef CONFIG_ARCH_USBDUMP
|
||||
/* Dump USB trace data */
|
||||
|
||||
(void)usbtrace_enumerate(assert_tracecallback, NULL);
|
||||
#endif
|
||||
|
||||
_up_assert(EXIT_FAILURE);
|
||||
}
|
||||
@@ -1,167 +0,0 @@
|
||||
/************************************************************************
|
||||
* up_blocktask.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <sched.h>
|
||||
#include <debug.h>
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include "sched/sched.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/************************************************************************
|
||||
* Private Definitions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Data
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Funtions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Public Funtions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* 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(FAR struct tcb_s *tcb, tstate_t task_state)
|
||||
{
|
||||
FAR struct tcb_s *rtcb = (FAR struct tcb_s*)g_readytorun.head;
|
||||
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));
|
||||
|
||||
dbg("Blocking TCB=%p\n", tcb);
|
||||
|
||||
/* 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 g_readytorun
|
||||
* task list now
|
||||
*/
|
||||
|
||||
if (g_pendingtasks.head)
|
||||
{
|
||||
switch_needed |= sched_mergepending();
|
||||
}
|
||||
|
||||
/* Now, perform the context switch if one is needed */
|
||||
|
||||
if (switch_needed)
|
||||
{
|
||||
/* Are we in an interrupt handler? */
|
||||
|
||||
if (g_irqtos)
|
||||
{
|
||||
/* Yes, then we have to do things differently.
|
||||
* Just copy the current registers into the OLD rtcb.
|
||||
*/
|
||||
|
||||
up_saveirqcontext(&tcb->xcp);
|
||||
|
||||
/* Restore the exception context of the rtcb at the (new) head
|
||||
* of the g_readytorun task list.
|
||||
*/
|
||||
|
||||
rtcb = (FAR struct tcb_s*)g_readytorun.head;
|
||||
dbg("New Active Task TCB=%p\n", rtcb);
|
||||
|
||||
/* Then setup so that the context will be performed on exit
|
||||
* from the interrupt.
|
||||
*/
|
||||
|
||||
g_irqcontext = &rtcb->xcp;
|
||||
}
|
||||
|
||||
/* Copy the user C context into the TCB at the (old) head of the
|
||||
* g_readytorun Task list. if up_savecontext returns a non-zero
|
||||
* value, then this is really the previously running task restarting!
|
||||
*/
|
||||
|
||||
else if (!up_savecontext(&rtcb->xcp))
|
||||
{
|
||||
/* Restore the exception context of the rtcb at the (new) head
|
||||
* of the g_readytorun task list.
|
||||
*/
|
||||
|
||||
rtcb = (FAR struct tcb_s*)g_readytorun.head;
|
||||
dbg("New Active Task TCB=%p\n", rtcb);
|
||||
|
||||
/* Then switch contexts */
|
||||
|
||||
up_restorecontext(&rtcb->xcp);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -1,255 +0,0 @@
|
||||
/************************************************************************
|
||||
* arch/8051/src/up_debug.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009, 2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <stdint.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <8052.h>
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/irq.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
#include "up_mem.h"
|
||||
|
||||
/************************************************************************
|
||||
* Definitions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Data
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Functions
|
||||
************************************************************************/
|
||||
|
||||
#if defined(CONFIG_FRAME_DUMP) && defined(CONFIG_ARCH_8051_BRINGUP)
|
||||
static void up_putspace(void) __naked
|
||||
{
|
||||
_asm
|
||||
mov a, #0x20
|
||||
ljmp PM2_ENTRY_COUT
|
||||
_endasm;
|
||||
}
|
||||
|
||||
static void _up_putcolon(void) __naked
|
||||
{
|
||||
_asm
|
||||
mov a, #0x3a
|
||||
ljmp PM2_ENTRY_COUT
|
||||
_endasm;
|
||||
}
|
||||
|
||||
static void _up_dump16(__code char *ptr, uint8_t msb, uint8_t lsb)
|
||||
{
|
||||
up_puts(ptr);
|
||||
up_puthex(msb);
|
||||
up_puthex(lsb);
|
||||
up_putnl();
|
||||
}
|
||||
|
||||
static void _up_dump8(__code char *ptr, uint8_t b)
|
||||
{
|
||||
up_puts(ptr);
|
||||
up_puthex(b);
|
||||
up_putnl();
|
||||
}
|
||||
#endif
|
||||
|
||||
/************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Name: up_puthex, up_puthex16, up_putnl, up_puts
|
||||
************************************************************************/
|
||||
|
||||
#if defined(CONFIG_ARCH_8051_BRINGUP)
|
||||
void up_puthex(uint8_t hex) __naked
|
||||
{
|
||||
hex; /* To avoid unreferenced argument warning */
|
||||
_asm
|
||||
mov a, dpl
|
||||
ljmp PM2_ENTRY_PHEX
|
||||
_endasm;
|
||||
}
|
||||
|
||||
void up_puthex16(int hex) __naked
|
||||
{
|
||||
hex; /* To avoid unreferenced argument warning */
|
||||
_asm
|
||||
ljmp PM2_ENTRY_PHEX16
|
||||
_endasm;
|
||||
}
|
||||
|
||||
void up_putnl(void) __naked
|
||||
{
|
||||
_asm
|
||||
ljmp PM2_ENTRY_NEWLINE
|
||||
_endasm;
|
||||
}
|
||||
|
||||
void up_puts(__code char *ptr)
|
||||
{
|
||||
for (; *ptr; ptr++)
|
||||
{
|
||||
up_putc(*ptr);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
/************************************************************************
|
||||
* Name: up_dumpstack
|
||||
************************************************************************/
|
||||
|
||||
#if defined(CONFIG_FRAME_DUMP) && defined(CONFIG_ARCH_8051_BRINGUP)
|
||||
void up_dumpstack(void)
|
||||
{
|
||||
NEAR uint8_t *start = (NEAR uint8_t *)(STACK_BASE & 0xf0);
|
||||
NEAR uint8_t *end = (NEAR uint8_t *)SP;
|
||||
uint8_t i;
|
||||
|
||||
while (start < end)
|
||||
{
|
||||
up_puthex((uint8_t)start);
|
||||
_up_putcolon();
|
||||
|
||||
for (i = 0; i < 8; i++)
|
||||
{
|
||||
up_putspace();
|
||||
if (start < (NEAR uint8_t *)(STACK_BASE) ||
|
||||
start > end)
|
||||
{
|
||||
up_putspace();
|
||||
up_putspace();
|
||||
}
|
||||
else
|
||||
{
|
||||
up_puthex(*start);
|
||||
}
|
||||
start++;
|
||||
}
|
||||
up_putnl();
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
/************************************************************************
|
||||
* Name: up_dumpframe
|
||||
************************************************************************/
|
||||
|
||||
#if defined(CONFIG_FRAME_DUMP) && defined(CONFIG_ARCH_8051_BRINGUP)
|
||||
void up_dumpframe(FAR struct xcptcontext *context)
|
||||
{
|
||||
#ifdef CONFIG_FRAME_DUMP_SHORT
|
||||
FAR uint8_t *stack = &context->stack[context->nbytes - FRAME_SIZE];
|
||||
FAR uint8_t *regs = context->regs;
|
||||
|
||||
_up_dump16(" RET ", stack[FRAME_RETMS], stack[FRAME_RETLS]);
|
||||
_up_dump8 (" IE ", stack[FRAME_IE]);
|
||||
_up_dump16(" DPTR ", stack[FRAME_DPH], stack[FRAME_DPL]);
|
||||
_up_dump8 (" PSW ", regs[REGS_PSW]);
|
||||
_up_dump8 (" SP ", context->nbytes + (STACK_BASE-1));
|
||||
#else
|
||||
FAR uint8_t *stack = &context->stack[context->nbytes - FRAME_SIZE];
|
||||
FAR uint8_t *regs = context->regs;
|
||||
uint8_t i, j, k;
|
||||
|
||||
_up_dump8 (" NBYTES ", context->nbytes);
|
||||
|
||||
for (i = 0; i < context->nbytes; i += 8)
|
||||
{
|
||||
up_puthex(i);
|
||||
_up_putcolon();
|
||||
|
||||
for (j = 0; j < 8; j++)
|
||||
{
|
||||
k = i + j;
|
||||
up_putspace();
|
||||
if (k >= context->nbytes)
|
||||
{
|
||||
up_putspace();
|
||||
up_putspace();
|
||||
}
|
||||
else
|
||||
{
|
||||
up_puthex(context->stack[k]);
|
||||
}
|
||||
}
|
||||
up_putnl();
|
||||
}
|
||||
|
||||
up_puts(" REGS:");
|
||||
for (i = 0; i < REGS_SIZE; i++)
|
||||
{
|
||||
up_putspace();
|
||||
up_puthex(context->regs[i]);
|
||||
}
|
||||
up_putnl();
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
|
||||
/************************************************************************
|
||||
* Name: up_dumpframe
|
||||
************************************************************************/
|
||||
|
||||
/* The 805x family has a tiny, 256 stack and can be easily
|
||||
* overflowed. The following macro can be used to instrument
|
||||
* code to dump the stack pointer at critical locations.
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_ARCH_8051_BRINGUP
|
||||
void up_showsp(uint8_t ch) __naked
|
||||
{
|
||||
ch;
|
||||
_asm
|
||||
mov a, dpl
|
||||
lcall PM2_ENTRY_COUT
|
||||
mov a, sp
|
||||
lcall PM2_ENTRY_PHEX
|
||||
lcall PM2_ENTRY_NEWLINE
|
||||
_endasm;
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
@@ -1,93 +0,0 @@
|
||||
/************************************************************************
|
||||
* up_delay.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
#include <stdint.h>
|
||||
#include "up_internal.h"
|
||||
|
||||
/************************************************************************
|
||||
* Definitions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Types
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Function Prototypes
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Variables
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Functions
|
||||
************************************************************************/
|
||||
|
||||
|
||||
/************************************************************************
|
||||
* Public Funtions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Name: up_delay
|
||||
*
|
||||
* Description:
|
||||
* Delay inline for the requested number of milliseconds.
|
||||
* NOT multi-tasking friendly.
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
void up_delay(uint8_t milliseconds) __naked
|
||||
{
|
||||
_asm
|
||||
mov r0, dpl
|
||||
00001$: mov r1, #230
|
||||
00002$: nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
djnz r1, 00002$
|
||||
djnz r0, 00001$
|
||||
ret
|
||||
_endasm;
|
||||
}
|
||||
@@ -1,106 +0,0 @@
|
||||
/****************************************************************************************
|
||||
* up_exit.c
|
||||
*
|
||||
* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <sched.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <8052.h>
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include "task/task.h"
|
||||
#include "sched/sched.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************************
|
||||
* Private Definitions
|
||||
****************************************************************************************/
|
||||
|
||||
/****************************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************************/
|
||||
|
||||
/****************************************************************************************
|
||||
* 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)
|
||||
{
|
||||
FAR struct tcb_s* tcb;
|
||||
|
||||
dbg("TCB=%p exiting\n", tcb);
|
||||
|
||||
/* Disable interrupts. Interrupts will remain disabled until
|
||||
* the new task is resumed below when the save IE is restored.
|
||||
*/
|
||||
|
||||
EA = 0;
|
||||
|
||||
/* Destroy the task at the head of the ready to run list. */
|
||||
|
||||
(void)task_exit();
|
||||
|
||||
/* Now, perform the context switch to the new ready-to-run task at the
|
||||
* head of the list.
|
||||
*/
|
||||
|
||||
tcb = (FAR struct tcb_s*)g_readytorun.head;
|
||||
dbg("New Active Task TCB=%p\n", tcb);
|
||||
|
||||
/* Then switch contexts */
|
||||
|
||||
up_restorecontext(&tcb->xcp);
|
||||
}
|
||||
|
||||
@@ -1,471 +0,0 @@
|
||||
/************************************************************
|
||||
* arch/8051/src/up_head.S
|
||||
*
|
||||
* Copyright (C) 2007, 2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 Gregory Nutt 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 <nuttx/config.h>
|
||||
#include <nuttx/irq.h>
|
||||
#include "up_internal.h"
|
||||
|
||||
.module up_head
|
||||
.optsdcc -mmcs51 --model-large
|
||||
|
||||
/************************************************************
|
||||
* Private Data
|
||||
************************************************************/
|
||||
|
||||
.area REG_BANK_0 (REL,OVR,DATA)
|
||||
.ds 8
|
||||
|
||||
#ifndef CONFIG_ARCH_8051_NOSYSTIMER
|
||||
.area XSEG
|
||||
_g_timer0tick:
|
||||
.ds 1
|
||||
#endif
|
||||
|
||||
/************************************************************
|
||||
* Public Data
|
||||
************************************************************/
|
||||
|
||||
.globl _g_irqtos
|
||||
.globl _g_irqcontext
|
||||
.globl _g_irqregs
|
||||
|
||||
/************************************************************
|
||||
* Public Functions
|
||||
************************************************************/
|
||||
|
||||
.globl _irq_dispatch
|
||||
.globl _up_restoreregisters
|
||||
|
||||
/************************************************************
|
||||
* Program entry points
|
||||
************************************************************/
|
||||
|
||||
/* Program entry is through PROGRAM_BASE. This is just a
|
||||
* branch to our start up logic.
|
||||
*/
|
||||
|
||||
.area CODE1 (ABS)
|
||||
.org PROGRAM_BASE
|
||||
ljmp start
|
||||
|
||||
/* These are indirect interrupt vectors. Logic in PAULMON2,
|
||||
* captures the interrupt vectors (near address 0x0000) and
|
||||
* re-routes them through the following entry points.
|
||||
*
|
||||
* Each of these saves acc and ie then passes the IRQ number
|
||||
* to higher level logic in a
|
||||
*/
|
||||
|
||||
.org PM2_VECTOR_EXTINT0
|
||||
push acc
|
||||
mov a, #EXT_INT0_IRQ
|
||||
ljmp _up_interrupt
|
||||
|
||||
.org PM2_VECTOR_TIMER0
|
||||
push acc
|
||||
#ifdef CONFIG_ARCH_8051_NOSYSTIMER
|
||||
mov a, #TIMER0_IRQ
|
||||
ljmp _up_interrupt
|
||||
#else
|
||||
ljmp _up_timer0
|
||||
#endif
|
||||
.org PM2_VECTOR_EXTINT1
|
||||
push acc
|
||||
mov a, #EXT_INT1_IRQ
|
||||
ljmp _up_interrupt
|
||||
|
||||
.org PM2_VECTOR_TIMER1
|
||||
push acc
|
||||
mov a, #TIMER1_IRQ
|
||||
ljmp _up_interrupt
|
||||
|
||||
.org PM2_VECTOR_UART
|
||||
push acc
|
||||
mov a, #UART_IRQ
|
||||
ljmp _up_interrupt
|
||||
|
||||
.org PM2_VECTOR_TIMER2
|
||||
push acc
|
||||
mov a, #TIMER2_IRQ
|
||||
ljmp _up_interrupt
|
||||
|
||||
/************************************************************
|
||||
* Name: start
|
||||
*
|
||||
* Description:
|
||||
* This is the initial entry point into NuttX
|
||||
*
|
||||
************************************************************/
|
||||
|
||||
start:
|
||||
mov sp, #(STACK_BASE-1)
|
||||
|
||||
#ifdef CONFIG_ARCH_LEDS
|
||||
lcall _board_led_initialize
|
||||
#endif
|
||||
|
||||
ljmp _os_start
|
||||
|
||||
/************************************************************
|
||||
* Name: up_timer0
|
||||
*
|
||||
* Description:
|
||||
* Timer 0, mode 0 can be used as a system timer. In that
|
||||
* mode, the 1.8432 MHz clock is divided by 32. A single
|
||||
* 8-bit value is incremented at 57600 Hz, which results
|
||||
* in 225 Timer 0 overflow interrupts per second.
|
||||
*
|
||||
* The Timer0 interrupt vectors to this point which then
|
||||
* does a software divide by 2 to get a system timer of
|
||||
* 112.5Hz.
|
||||
*
|
||||
* On Entry:
|
||||
*
|
||||
* (1) acc on the stack and
|
||||
* (2) the IRQ number(TIMER0_IRQ) in the accumulator
|
||||
*
|
||||
************************************************************/
|
||||
|
||||
#ifndef CONFIG_ARCH_8051_NOSYSTIMER
|
||||
_up_timer0:
|
||||
ar2 = 0x02
|
||||
ar3 = 0x03
|
||||
ar4 = 0x04
|
||||
ar5 = 0x05
|
||||
ar6 = 0x06
|
||||
ar7 = 0x07
|
||||
ar0 = 0x00
|
||||
ar1 = 0x01
|
||||
|
||||
/* ACC already on the stack; push IE. Then disable interrupts */
|
||||
|
||||
push ie
|
||||
clr ea
|
||||
|
||||
/* Save the remaining registers with interrupts disabled
|
||||
*
|
||||
* a, ie, and dptr go on the stack.
|
||||
*/
|
||||
|
||||
push dpl
|
||||
push dph
|
||||
|
||||
/* Increment the tick counter */
|
||||
|
||||
mov dptr, #_g_timer0tick
|
||||
movx a, @dptr
|
||||
inc a
|
||||
movx @dptr, a
|
||||
|
||||
/* If bit 0 is '0', then just return from the interrupt */
|
||||
|
||||
anl a, #0x01
|
||||
jnz 00101$
|
||||
ljmp _up_timer0exit
|
||||
|
||||
/* If bit 0 is '1', then process the interrupt */
|
||||
|
||||
00101$:
|
||||
mov a, #TIMER0_IRQ
|
||||
sjmp _up_timer0join
|
||||
#endif
|
||||
|
||||
/************************************************************
|
||||
* Name: up_interrupt
|
||||
*
|
||||
* Description:
|
||||
* All interrupts vector to this point with:
|
||||
*
|
||||
* (1) acc on the stack and
|
||||
* (2) the IRQ number in the accumulator
|
||||
*
|
||||
************************************************************/
|
||||
|
||||
_up_interrupt:
|
||||
ar2 = 0x02
|
||||
ar3 = 0x03
|
||||
ar4 = 0x04
|
||||
ar5 = 0x05
|
||||
ar6 = 0x06
|
||||
ar7 = 0x07
|
||||
ar0 = 0x00
|
||||
ar1 = 0x01
|
||||
|
||||
/* ACC already on the stack; push IE. Then disable interrupts */
|
||||
|
||||
push ie
|
||||
clr ea
|
||||
|
||||
/* Save the remaining registers with interrupts disabled
|
||||
*
|
||||
* a, ie, and dptr go on the stack.
|
||||
*/
|
||||
|
||||
push dpl
|
||||
push dph
|
||||
|
||||
_up_timer0join:
|
||||
/* Other registers go into the IRQ register save area */
|
||||
|
||||
push acc
|
||||
mov dptr, #_g_irqregs
|
||||
lcall _up_saveregisters
|
||||
|
||||
/* Show interrupt status on the LEDs */
|
||||
|
||||
#ifdef CONFIG_ARCH_LEDS
|
||||
mov dpl, #LED_INIRQ
|
||||
lcall _board_led_on
|
||||
#endif
|
||||
|
||||
/* Save the IRQ number in r2 */
|
||||
|
||||
pop ar2
|
||||
|
||||
/* Mark that we are in an interrupt and provide the top
|
||||
* of stack pointer to the context switching logic.
|
||||
*/
|
||||
|
||||
mov dptr, #_g_irqtos
|
||||
mov a, sp
|
||||
movx @dptr, a
|
||||
|
||||
/* Nullify the context pointer. If a context switch is
|
||||
* needed, this will be set to the address of the context
|
||||
* structure.
|
||||
*/
|
||||
|
||||
mov dptr, #_g_irqcontext
|
||||
clr a
|
||||
movx @dptr,a
|
||||
inc dptr
|
||||
movx @dptr,a
|
||||
|
||||
/* Now call void irq_dispatch(int irq, FAR void *context)
|
||||
*
|
||||
* First, create the first argument as (int)irqno
|
||||
*/
|
||||
|
||||
mov dpl, r2
|
||||
mov dph, #0
|
||||
|
||||
/* Create the second argument (void *context) on the stack */
|
||||
|
||||
push sp
|
||||
clr a
|
||||
push acc
|
||||
|
||||
/* Then dispatch the IRQ. */
|
||||
|
||||
lcall _irq_dispatch
|
||||
pop acc
|
||||
pop acc
|
||||
|
||||
/* Indicate that we are no longer in an interrupt */
|
||||
|
||||
mov dptr, #_g_irqtos
|
||||
clr a
|
||||
movx @dptr, a
|
||||
|
||||
/* Check if a context switch is pending */
|
||||
|
||||
mov dptr,#_g_irqcontext
|
||||
movx a, @dptr
|
||||
mov r2, a
|
||||
inc dptr
|
||||
movx a, @dptr
|
||||
mov r3, a
|
||||
|
||||
orl a, r2
|
||||
jnz 00001$
|
||||
|
||||
/* No context switch is pending. Restore registers
|
||||
* from the interrupt register save area.
|
||||
*/
|
||||
|
||||
mov dptr, #_g_irqregs
|
||||
sjmp 00004$
|
||||
|
||||
00001$: /****************************************************/
|
||||
|
||||
/* A context switch is pending, clear g_irqcontext */
|
||||
|
||||
mov dpl, r2
|
||||
mov dph, r3
|
||||
clr a
|
||||
movx @dptr, a
|
||||
inc dptr
|
||||
movx @dptr, a
|
||||
|
||||
#ifdef CONFIG_INTERRUPT_FRAME_DUMP
|
||||
mov dpl, r2
|
||||
mov dph, r3
|
||||
push ar2
|
||||
push ar3
|
||||
lcall _up_dumpframe
|
||||
pop ar3
|
||||
pop ar2
|
||||
#endif
|
||||
|
||||
/* Register usage in the following:
|
||||
*
|
||||
* R0 - Holds working the 8-bit IRAM pointer
|
||||
* R1 - Not used
|
||||
* R2-3 - Holds the working 16-bit XRAM pointer
|
||||
* R4 - Holds the working byte count
|
||||
* R5 - Holds the new stack pointer
|
||||
* R6-7 - Not used
|
||||
*/
|
||||
|
||||
/* Fetch r4 = context->nbytes */
|
||||
|
||||
mov dpl, r2
|
||||
mov dph, r3
|
||||
movx a, @dptr
|
||||
mov r4, a
|
||||
|
||||
/* Save the new stack pointer in r5 */
|
||||
|
||||
add a, #(STACK_BASE-1)
|
||||
mov r5, a
|
||||
|
||||
/* Save r2-3 = &context->stack */
|
||||
|
||||
inc dptr
|
||||
push dpl
|
||||
push dph
|
||||
mov r2, dpl
|
||||
mov r3, dph
|
||||
|
||||
/* Set r0 = stack base address */
|
||||
|
||||
mov r0, #STACK_BASE
|
||||
|
||||
/* Top of the copy loop */
|
||||
00002$:
|
||||
mov a, r4 /* a = bytes left to transfer */
|
||||
dec r4 /* (for next time through the loop) */
|
||||
jz 00003$ /* Jump if a = 0 (done) */
|
||||
|
||||
/* Fetch the next byte from context->stack */
|
||||
|
||||
mov dpl, r2
|
||||
mov dph, r3
|
||||
movx a,@dptr
|
||||
|
||||
/* Increment the XRAM pointer */
|
||||
|
||||
inc dptr
|
||||
mov r2, dpl
|
||||
mov r3, dph
|
||||
|
||||
/* Save the next byte into IRAM */
|
||||
|
||||
mov @r0, a
|
||||
|
||||
/* Increment the IRAM pointer */
|
||||
|
||||
inc r0
|
||||
sjmp 00002$
|
||||
|
||||
/* The entire stack has been copied from XRAM into
|
||||
* IRAM. Set the new stack pointer
|
||||
*/
|
||||
|
||||
00003$:
|
||||
pop dph
|
||||
pop dpl
|
||||
mov sp, r5
|
||||
|
||||
#ifdef CONFIG_INTERRUPT_FRAME_DUMP
|
||||
push dpl
|
||||
push dph
|
||||
lcall _up_dumpstack
|
||||
pop dph
|
||||
pop dpl
|
||||
#endif
|
||||
/* Get the pointer to the register save area */
|
||||
|
||||
mov a, #STACK_SIZE
|
||||
add a, dpl
|
||||
mov dpl, a
|
||||
clr a
|
||||
addc a, dph
|
||||
mov dph, a
|
||||
|
||||
00004$: /****************************************************/
|
||||
|
||||
/* Restore the context from the register save area
|
||||
* and return from the interrupt. At this point, dptr
|
||||
* holds the pointer to the memory region that holds
|
||||
* the register save area. This could be either
|
||||
* g_irqregs (no context switch) or &g_irqcontext->regs
|
||||
* (context switch).
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_ARCH_LEDS
|
||||
push dpl
|
||||
push dph
|
||||
mov dpl, #LED_INIRQ
|
||||
lcall _board_led_off
|
||||
pop dph
|
||||
pop dpl
|
||||
#endif
|
||||
/* Restore registers from the register save area */
|
||||
|
||||
lcall _up_restoreregisters
|
||||
|
||||
_up_timer0exit:
|
||||
/* Restore registers from the stack and return */
|
||||
|
||||
pop dph
|
||||
pop dpl
|
||||
|
||||
/* Restore the interrupt state per the stored IE value */
|
||||
|
||||
pop acc
|
||||
jb acc.7,00005$
|
||||
clr ie.7
|
||||
sjmp 00006$
|
||||
00005$:
|
||||
setb ie.7
|
||||
|
||||
00006$:
|
||||
pop acc
|
||||
reti
|
||||
@@ -1,95 +0,0 @@
|
||||
/************************************************************************
|
||||
* arch/8051/src/up_idle.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009, 2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <stdint.h>
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
|
||||
/************************************************************************
|
||||
* Pre-processor Definitions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Data
|
||||
************************************************************************/
|
||||
|
||||
#if defined(CONFIG_ARCH_LEDS) && defined(CONFIG_ARCH_8051_BRINGUP)
|
||||
static uint8_t g_ledtoggle = 0;
|
||||
#endif
|
||||
|
||||
/************************************************************************
|
||||
* Private Functions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* 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_ARCH_LEDS) && defined(CONFIG_ARCH_8051_BRINGUP)
|
||||
g_ledtoggle++;
|
||||
if (g_ledtoggle == 0x80)
|
||||
{
|
||||
board_led_on(LED_IDLE);
|
||||
}
|
||||
else if (g_ledtoggle == 0x00)
|
||||
{
|
||||
board_led_off(LED_IDLE);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
@@ -1,144 +0,0 @@
|
||||
/************************************************************************
|
||||
* arch/8051/src/up_initialize.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009, 2011, 2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <nuttx/fs/fs.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
|
||||
/************************************************************************
|
||||
* Private Definitions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Data
|
||||
************************************************************************/
|
||||
|
||||
/* This is the top of the stack containing the interrupt
|
||||
* stack frame. It is set when processing an interrupt. It
|
||||
* is also cleared when the interrupt returns so this can
|
||||
* also be used like a boolean indication that we are in an
|
||||
* interrupt.
|
||||
*/
|
||||
|
||||
volatile uint8_t g_irqtos;
|
||||
|
||||
/* Registers are saved in the following global array during
|
||||
* interrupt processing. If a context switch is performed
|
||||
* during the interrupt handling, these registers will be
|
||||
* copied into the TCB again (NOTE: We could save a copy
|
||||
* if the interrupt handling logic saved the registers
|
||||
* directly into (struct tcb_s*)g_readytorun.head->xcp.regs).
|
||||
*/
|
||||
|
||||
uint8_t g_irqregs[REGS_SIZE];
|
||||
|
||||
/* If during execution of an interrup handler, a context
|
||||
* switch must be performed, the follwing will be set to
|
||||
* to that address of the relevant context structure. The
|
||||
* actual switch will be deferred until the time that the
|
||||
* the interrupt exits.
|
||||
*/
|
||||
|
||||
FAR struct xcptcontext *g_irqcontext;
|
||||
|
||||
/* It is faster to look up 8-bit shifts in this table than
|
||||
* to comput them.
|
||||
*/
|
||||
|
||||
const uint8_t g_ntobit[8] =
|
||||
{ 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 };
|
||||
|
||||
/************************************************************************
|
||||
* Private Functions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Name: up_initialize
|
||||
*
|
||||
* Description:
|
||||
* up_initialize will be called once during OS
|
||||
* initialization after the basic OS services have been
|
||||
* initialized. The architecture specific details of
|
||||
* initializing the OS will be handled here. Such things as
|
||||
* setting up interrupt service routines, starting the
|
||||
* clock, and registering device drivers are some of the
|
||||
* things that are different for each processor and hardware
|
||||
* platform.
|
||||
*
|
||||
* up_initialize is called after the OS initialized but
|
||||
* before the init process has been started and before the
|
||||
* libraries have been initialized. OS services and driver
|
||||
* services are available.
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
void up_initialize(void)
|
||||
{
|
||||
/* Initialize global variables */
|
||||
|
||||
g_irqtos = 0;
|
||||
|
||||
/* Add extra memory fragments to the memory manager */
|
||||
|
||||
#if CONFIG_MM_REGIONS > 1
|
||||
up_addregion();
|
||||
#endif
|
||||
|
||||
/* Initialize the interrupt subsystem */
|
||||
|
||||
up_irqinitialize();
|
||||
|
||||
/* Initialize the system timer interrupt */
|
||||
|
||||
#ifndef CONFIG_ARCH_8051_SUPRESS_INTERRUPTS
|
||||
up_timer_initialize();
|
||||
#endif
|
||||
|
||||
board_led_on(LED_IRQSENABLED);
|
||||
}
|
||||
|
||||
@@ -1,119 +0,0 @@
|
||||
/************************************************************************
|
||||
* up_initialstate.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <stdint.h>
|
||||
#include <sched.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
|
||||
/************************************************************************
|
||||
* Private 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(FAR struct tcb_s *tcb)
|
||||
{
|
||||
FAR uint8_t *frame = tcb->xcp.stack;
|
||||
FAR uint8_t *regs = tcb->xcp.regs;
|
||||
|
||||
/* This is the form of initial stack frame
|
||||
*
|
||||
* This initial stack frame will be configured to hold.
|
||||
* (1) The 16-bit return address of either:
|
||||
*
|
||||
* void task_start(void);
|
||||
* void pthread_start(void)
|
||||
*
|
||||
* The return address is stored at the top of stack.
|
||||
* so that the RETI instruction will work:
|
||||
*
|
||||
* PC15-8 <- ((SP))
|
||||
* (SP) <- (SP) -1
|
||||
* PC7-0 <- ((SP))
|
||||
* (SP) <- (SP) -1
|
||||
*/
|
||||
|
||||
frame[FRAME_RETLS] = (((uint16_t)tcb->start) & 0xff);
|
||||
frame[FRAME_RETMS] = (((uint16_t)tcb->start) >> 8);
|
||||
|
||||
/* The context save area for registers a, ie, and dpstr
|
||||
* follows the return address in the stack frame.
|
||||
*/
|
||||
|
||||
frame[FRAME_IE] = 0x80;
|
||||
|
||||
/* Save the number of bytes in the frame (which will be used
|
||||
* to initialize the stack pointer when the task is started).
|
||||
*/
|
||||
|
||||
tcb->xcp.nbytes = FRAME_SIZE;
|
||||
|
||||
/* Initialize the remaining register save area which is
|
||||
* outside of the stack save area.
|
||||
*/
|
||||
|
||||
tcb->xcp.regs[REGS_PSW] = 0;
|
||||
}
|
||||
@@ -1,153 +0,0 @@
|
||||
/**************************************************************************
|
||||
* arch/8051/src/up_internal.h
|
||||
*
|
||||
* Copyright (C) 2007, 2009, 2011, 2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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_8051_SRC_UP_INTERNAL_H
|
||||
#define __ARCH_8051_SRC_UP_INTERNAL_H
|
||||
|
||||
/**************************************************************************
|
||||
* Included Files
|
||||
**************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include <arch/irq.h>
|
||||
|
||||
#if defined(CONFIG_ARCH_BOARD_PJRC_87C52)
|
||||
# include <arch/board/pjrc.h>
|
||||
#else
|
||||
# warning "805x board not recognized"
|
||||
#endif
|
||||
|
||||
/**************************************************************************
|
||||
* Public Definitions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Public Types
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Public Variables
|
||||
**************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
/* This is the top of the stack containing the interrupt
|
||||
* stack frame. It is set when processing an interrupt. It
|
||||
* is also cleared when the interrupt returns so this can
|
||||
* also be used like a boolean indication that we are in an
|
||||
* interrupt.
|
||||
*/
|
||||
|
||||
extern volatile uint8_t g_irqtos;
|
||||
|
||||
/* Registers are saved in the following global array during
|
||||
* interrupt processing. If a context switch is performed
|
||||
* during the interrupt handling, these registers will be
|
||||
* copied into the TCB again (NOTE: We could save a copy
|
||||
* if the interrupt handling logic saved the registers
|
||||
* directly into (struct tcb_s*)g_readytorun.head->xcp.regs).
|
||||
*/
|
||||
|
||||
extern uint8_t g_irqregs[REGS_SIZE];
|
||||
|
||||
/* If during execution of an interrup handler, a context
|
||||
* switch must be performed, the follwing will be set to
|
||||
* to that address of the relevant context structure. The
|
||||
* actual switch will be deferred until the time that the
|
||||
* the interrupt exits.
|
||||
*/
|
||||
|
||||
extern FAR struct xcptcontext *g_irqcontext;
|
||||
|
||||
/* It is faster to look up 8-bit shifts in this table than
|
||||
* to comput them.
|
||||
*/
|
||||
|
||||
extern const uint8_t g_ntobit[8];
|
||||
|
||||
#endif /* __ASSEMBLY */
|
||||
|
||||
/**************************************************************************
|
||||
* Public Function Prototypes
|
||||
**************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
#if CONFIG_MM_REGIONS > 1
|
||||
void up_addregion(void);
|
||||
#endif
|
||||
void up_delay(uint8_t milliseconds) __naked;
|
||||
void up_irqinitialize(void);
|
||||
void up_restorecontext(FAR struct xcptcontext *context) _naked;
|
||||
void up_restoreregisters(FAR uint8_t *regs) _naked;
|
||||
uint8_t up_savecontext(FAR struct xcptcontext *context) __naked;
|
||||
void up_saveregisters(FAR uint8_t *regs) _naked;
|
||||
void up_saveirqcontext(FAR struct xcptcontext *context);
|
||||
void up_timer_initialize(void);
|
||||
|
||||
/* Defined in up_debug.c */
|
||||
|
||||
#if defined(CONFIG_ARCH_8051_BRINGUP)
|
||||
void up_puthex(uint8_t hex) __naked;
|
||||
void up_puthex16(int hex) __naked;
|
||||
void up_putnl(void) __naked;
|
||||
void up_puts(__code char *ptr);
|
||||
void up_showsp(uint8_t ch) __naked;
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_FRAME_DUMP) && defined(CONFIG_ARCH_8051_BRINGUP)
|
||||
void up_dumpstack(void);
|
||||
void up_dumpframe(FAR struct xcptcontext *context);
|
||||
#else
|
||||
# define up_dumpstack()
|
||||
# define up_dumpframe(x)
|
||||
#endif
|
||||
|
||||
/* Defined in board/up_leds.c */
|
||||
|
||||
#ifdef CONFIG_ARCH_LEDS
|
||||
void board_led_initialize(void);
|
||||
void board_led_on(uint8_t led);
|
||||
void board_led_off(uint8_t led);
|
||||
#else
|
||||
# define board_led_initialize()
|
||||
# define board_led_on(led)
|
||||
# define board_led_off(led)
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY */
|
||||
#endif /* __ARCH_8051_SRC_UP_INTERNAL_H */
|
||||
@@ -1,70 +0,0 @@
|
||||
/************************************************************************
|
||||
* up_interruptcontext.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <nuttx/arch.h>
|
||||
#include <nuttx/irq.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
|
||||
/************************************************************************
|
||||
* Private Types
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Function Prototypes
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Global 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_irqtos != 0;
|
||||
}
|
||||
@@ -1,152 +0,0 @@
|
||||
/************************************************************************
|
||||
* arch/8051/src/up_irq.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009, 2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <nuttx/irq.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <8052.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
|
||||
extern int g_nints;
|
||||
|
||||
/************************************************************************
|
||||
* Definitions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Public Data
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Data
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Functions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Public Funtions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Name: irq_initialize
|
||||
************************************************************************/
|
||||
|
||||
void up_irqinitialize(void)
|
||||
{
|
||||
/* Set interrupt priorities (all low) */
|
||||
|
||||
IP = 0;
|
||||
|
||||
#ifdef CONFIG_ARCH_8051_SUPRESS_INTERRUPTS
|
||||
/* Disable all interrupts */
|
||||
|
||||
IE = 0;
|
||||
#else
|
||||
/* Enable interrupts globally, but disable all interrupt
|
||||
* sources.
|
||||
*/
|
||||
|
||||
IE = 0x80;
|
||||
#endif
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
* Name: irqsave
|
||||
*
|
||||
* Description:
|
||||
* Disable all IRQs
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
irqstate_t irqsave(void)
|
||||
{
|
||||
irqstate_t ret = IE;
|
||||
EA = 0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
* Name: irqrestore
|
||||
*
|
||||
* Description:
|
||||
* Restore a previous interrupt state
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
void irqrestore(irqstate_t flags)
|
||||
{
|
||||
IE = flags;
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
* Name: up_disable_irq
|
||||
*
|
||||
* Description:
|
||||
* Disable the IRQ specified by 'irq'
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
void up_disable_irq(int irq)
|
||||
{
|
||||
if ((unsigned)irq < NR_IRQS)
|
||||
{
|
||||
IE &= ~(g_ntobit[irq]);
|
||||
}
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
* Name: up_enable_irq
|
||||
*
|
||||
* Description:
|
||||
* Enable the IRQ specified by 'irq'
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
void up_enable_irq(int irq)
|
||||
{
|
||||
if ((unsigned)irq < NR_IRQS)
|
||||
{
|
||||
IE |= g_ntobit[irq];
|
||||
}
|
||||
}
|
||||
@@ -1,272 +0,0 @@
|
||||
/************************************************************************
|
||||
* arch/8051/src/up_irqtest.c
|
||||
*
|
||||
* Copyright (C) 2007, 2011, 2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <8052.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
|
||||
/************************************************************************
|
||||
* Definitions
|
||||
************************************************************************/
|
||||
|
||||
#define up_extint0 ((vector_t)PM2_VECTOR_EXTINT0)
|
||||
#define up_timer0 ((vector_t)PM2_VECTOR_TIMER0)
|
||||
#define up_extint1 ((vector_t)PM2_VECTOR_EXTINT1)
|
||||
#define up_timer1 ((vector_t)PM2_VECTOR_TIMER1)
|
||||
#define up_uart ((vector_t)PM2_VECTOR_UART)
|
||||
#define up_timer2 ((vector_t)PM2_VECTOR_TIMER2)
|
||||
|
||||
/************************************************************************
|
||||
* Private Types
|
||||
************************************************************************/
|
||||
|
||||
typedef void (*vector_t)(void);
|
||||
|
||||
/************************************************************************
|
||||
* Public Variables
|
||||
************************************************************************/
|
||||
|
||||
bool g_irqtest;
|
||||
volatile uint8_t g_irqtos;
|
||||
uint8_t g_irqregs[REGS_SIZE];
|
||||
int g_nirqs;
|
||||
FAR struct xcptcontext *g_irqcontext;
|
||||
|
||||
/************************************************************************
|
||||
* Private Functions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Name: utility functions
|
||||
************************************************************************/
|
||||
|
||||
static void _up_putc(uint8_t ch) __naked
|
||||
{
|
||||
ch; /* To avoid unreferenced argument warning */
|
||||
_asm
|
||||
mov a, dpl
|
||||
ljmp PM2_ENTRY_COUT
|
||||
_endasm;
|
||||
}
|
||||
|
||||
void _up_puthex(uint8_t hex) __naked
|
||||
{
|
||||
hex; /* To avoid unreferenced argument warning */
|
||||
_asm
|
||||
mov a, dpl
|
||||
ljmp PM2_ENTRY_PHEX
|
||||
_endasm;
|
||||
}
|
||||
|
||||
void _up_puthex16(int hex) __naked
|
||||
{
|
||||
hex; /* To avoid unreferenced argument warning */
|
||||
_asm
|
||||
ljmp PM2_ENTRY_PHEX16
|
||||
_endasm;
|
||||
}
|
||||
|
||||
void _up_putnl(void) __naked
|
||||
{
|
||||
_asm
|
||||
ljmp PM2_ENTRY_NEWLINE
|
||||
_endasm;
|
||||
}
|
||||
|
||||
void _up_puts(__code char *ptr)
|
||||
{
|
||||
for (; *ptr; ptr++)
|
||||
{
|
||||
_up_putc(*ptr);
|
||||
}
|
||||
}
|
||||
|
||||
void _up_delay(uint8_t milliseconds) __naked
|
||||
{
|
||||
_asm
|
||||
mov r0, dpl
|
||||
00001$: mov r1, #230
|
||||
00002$: nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
djnz r1, 00002$
|
||||
djnz r0, 00001$
|
||||
ret
|
||||
_endasm;
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Name: os_start
|
||||
*
|
||||
* Description:
|
||||
* "Fake" OS entry point.
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
void os_start(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
/* Disable all interrupts */
|
||||
|
||||
IE = 0;
|
||||
|
||||
/* Then verify all of the interrupts */
|
||||
|
||||
g_irqtest = false;
|
||||
|
||||
up_extint0();
|
||||
#ifdef CONFIG_ARCH_8051_NOSYSTIMER
|
||||
up_timer0();
|
||||
#endif
|
||||
up_extint1();
|
||||
up_timer1();
|
||||
up_uart();
|
||||
up_timer2();
|
||||
|
||||
/* Now a real interrupt ... */
|
||||
|
||||
/* Configure timer 0 */
|
||||
|
||||
TR0 = 0; /* Make sure timer 0 is stopped */
|
||||
TF0 = 0; /* Clear the overflow flag */
|
||||
TMOD &= 0xF0; /* Set to mode 0 (without changing timer1) */
|
||||
TL0 = 0; /* Clear timer 0 value */
|
||||
TH0 = 0;
|
||||
TR0 = 1; /* Start the timer */
|
||||
|
||||
/* Start timer interrupts */
|
||||
|
||||
g_irqtest = true;
|
||||
g_nirqs = 0;
|
||||
IE = 0x82; /* Enable interrupts */
|
||||
|
||||
/* Wait a about 500 MS */
|
||||
|
||||
_up_delay(500);
|
||||
|
||||
/* Disable the timer */
|
||||
|
||||
TR0 = 0; /* Stop timer 0 */
|
||||
IE = 0; /* Disable interrupts */
|
||||
|
||||
_up_puts("IRQs in 500 MS=");
|
||||
_up_puthex16(g_nirqs);
|
||||
_up_putnl();
|
||||
|
||||
/* end of test */
|
||||
|
||||
_up_puts("Test complete");
|
||||
_up_putnl();
|
||||
for (;;);
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
* Name: irq_dispatch
|
||||
*
|
||||
* Description:
|
||||
* "Fake" IRQ dispatcher
|
||||
*
|
||||
***********************************************************************/
|
||||
|
||||
void irq_dispatch(int irq, FAR void *context)
|
||||
{
|
||||
context;
|
||||
if (g_irqtest)
|
||||
{
|
||||
g_nirqs++;
|
||||
}
|
||||
else
|
||||
{
|
||||
_up_puts("Dispatch IRQ=");
|
||||
_up_puthex(irq);
|
||||
_up_putnl();
|
||||
}
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
* Name: up_dumpstack / up_dumpframe
|
||||
*
|
||||
* Description:
|
||||
* "Fake" debug routines if needed.
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
void up_dumpstack(void)
|
||||
{
|
||||
}
|
||||
|
||||
void up_dumpframe(FAR struct xcptcontext *context)
|
||||
{
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
* Name: board_led_initialize, board_led_on, board_led_off
|
||||
*
|
||||
* Description:
|
||||
* "Fake" LED routines if needed
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
void board_led_initialize(void)
|
||||
{
|
||||
}
|
||||
|
||||
void board_led_on(uint8_t led)
|
||||
{
|
||||
led;
|
||||
}
|
||||
|
||||
void board_led_off(uint8_t led)
|
||||
{
|
||||
led;
|
||||
}
|
||||
@@ -1,81 +0,0 @@
|
||||
/************************************************************************
|
||||
* up_putc.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
#include <nuttx/arch.h>
|
||||
#include "up_internal.h"
|
||||
|
||||
/************************************************************************
|
||||
* Private Functions
|
||||
************************************************************************/
|
||||
|
||||
static void _up_putc(int ch) __naked
|
||||
{
|
||||
#if 1
|
||||
ch; /* To avoid unreferenced argument warning */
|
||||
_asm
|
||||
mov a, dpl
|
||||
ljmp PM2_ENTRY_COUT
|
||||
_endasm;
|
||||
#else
|
||||
ch; /* To avoid unreferenced argument warning */
|
||||
_asm
|
||||
mov a, dpl
|
||||
cout: jnb ti, cout
|
||||
clr ti
|
||||
mov sbuf, a
|
||||
ret
|
||||
_endasm;
|
||||
#endif
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************/
|
||||
|
||||
int up_putc(int ch)
|
||||
{
|
||||
_up_putc(ch);
|
||||
if (ch == '\n')
|
||||
{
|
||||
_up_putc('\r');
|
||||
}
|
||||
return ch;
|
||||
}
|
||||
|
||||
@@ -1,135 +0,0 @@
|
||||
/************************************************************************
|
||||
* up_releasepending.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <sched.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include "sched/sched.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/************************************************************************
|
||||
* Private Definitions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Data
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Funtions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Public Funtions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* 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)
|
||||
{
|
||||
FAR struct tcb_s *rtcb = (FAR struct tcb_s*)g_readytorun.head;
|
||||
|
||||
dbg("From TCB=%p\n", rtcb);
|
||||
|
||||
/* Merge the g_pendingtasks list into the g_readytorun task list */
|
||||
|
||||
/* sched_lock(); */
|
||||
if (sched_mergepending())
|
||||
{
|
||||
/* The currently active task has changed! We will need to
|
||||
* switch contexts. First check if we are operating in
|
||||
* interrupt context:
|
||||
*/
|
||||
|
||||
if (g_irqtos)
|
||||
{
|
||||
/* Yes, then we have to do things differently.
|
||||
* Just copy the current registers into the OLD rtcb.
|
||||
*/
|
||||
|
||||
up_saveirqcontext(&rtcb->xcp);
|
||||
|
||||
/* Restore the exception context of the rtcb at the (new) head
|
||||
* of the g_readytorun task list.
|
||||
*/
|
||||
|
||||
rtcb = (FAR struct tcb_s*)g_readytorun.head;
|
||||
dbg("New Active Task TCB=%p\n", rtcb);
|
||||
|
||||
/* Then setup so that the context will be performed on exit
|
||||
* from the interrupt.
|
||||
*/
|
||||
|
||||
g_irqcontext = &rtcb->xcp;
|
||||
}
|
||||
|
||||
/* Copy the exception context into the TCB of the task that
|
||||
* was currently active. if up_savecontext returns a non-zero
|
||||
* value, then this is really the previously running task
|
||||
* restarting!
|
||||
*/
|
||||
|
||||
else if (!up_savecontext(&rtcb->xcp))
|
||||
{
|
||||
/* Restore the exception context of the rtcb at the (new) head
|
||||
* of the g_readytorun task list.
|
||||
*/
|
||||
|
||||
rtcb = (FAR struct tcb_s*)g_readytorun.head;
|
||||
dbg("New Active Task TCB=%p\n", rtcb);
|
||||
|
||||
/* Then switch contexts */
|
||||
|
||||
up_restorecontext(&rtcb->xcp);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -1,190 +0,0 @@
|
||||
/****************************************************************************
|
||||
* up_reprioritizertr.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009, 2013 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include <sched.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include "sched/sched.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Private Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Funtions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Funtions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_reprioritize_rtr
|
||||
*
|
||||
* Description:
|
||||
* Called when the priority of a running or
|
||||
* ready-to-run task changes and the reprioritization will
|
||||
* cause a context switch. Two cases:
|
||||
*
|
||||
* 1) The priority of the currently running task drops and the next
|
||||
* task in the ready to run list has priority.
|
||||
* 2) An idle, ready to run task's priority has been raised above the
|
||||
* the priority of the current, running task and it now has the
|
||||
* priority.
|
||||
*
|
||||
* Inputs:
|
||||
* tcb: The TCB of the task that has been reprioritized
|
||||
* priority: The new task priority
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_reprioritize_rtr(FAR struct tcb_s *tcb, uint8_t priority)
|
||||
{
|
||||
/* Verify that the caller is sane */
|
||||
|
||||
if (tcb->task_state < FIRST_READY_TO_RUN_STATE ||
|
||||
tcb->task_state > LAST_READY_TO_RUN_STATE
|
||||
#if SCHED_PRIORITY_MIN > 0
|
||||
|| priority < SCHED_PRIORITY_MIN
|
||||
#endif
|
||||
#if SCHED_PRIORITY_MAX < UINT8_MAX
|
||||
|| priority > SCHED_PRIORITY_MAX
|
||||
#endif
|
||||
)
|
||||
{
|
||||
PANIC();
|
||||
}
|
||||
else
|
||||
{
|
||||
FAR struct tcb_s *rtcb = (FAR struct tcb_s*)g_readytorun.head;
|
||||
bool switch_needed;
|
||||
|
||||
dbg("TCB=%p PRI=%d\n", tcb, priority);
|
||||
|
||||
/* Remove the tcb task from the ready-to-run list.
|
||||
* sched_removereadytorun will return true if we just
|
||||
* remove the head of the ready to run list.
|
||||
*/
|
||||
|
||||
switch_needed = sched_removereadytorun(tcb);
|
||||
|
||||
/* Setup up the new task priority */
|
||||
|
||||
tcb->sched_priority = (uint8_t)priority;
|
||||
|
||||
/* Return the task to the specified blocked task list.
|
||||
* sched_addreadytorun will return true if the task was
|
||||
* added to the new list. We will need to perform a context
|
||||
* switch only if the EXCLUSIVE or of the two calls is non-zero
|
||||
* (i.e., one and only one the calls changes the head of the
|
||||
* ready-to-run list).
|
||||
*/
|
||||
|
||||
switch_needed ^= sched_addreadytorun(tcb);
|
||||
|
||||
/* Now, perform the context switch if one is needed */
|
||||
|
||||
if (switch_needed)
|
||||
{
|
||||
/* If we are going to do a context switch, then now is the right
|
||||
* time to add any pending tasks back into the ready-to-run list.
|
||||
* task list now
|
||||
*/
|
||||
|
||||
if (g_pendingtasks.head)
|
||||
{
|
||||
sched_mergepending();
|
||||
}
|
||||
|
||||
/* Are we in an interrupt handler? */
|
||||
|
||||
if (g_irqtos)
|
||||
{
|
||||
/* Yes, then we have to do things differently.
|
||||
* Just copy the current registers into the OLD rtcb.
|
||||
*/
|
||||
|
||||
up_saveirqcontext(&tcb->xcp);
|
||||
|
||||
/* Restore the exception context of the rtcb at the (new) head
|
||||
* of the g_readytorun task list.
|
||||
*/
|
||||
|
||||
rtcb = (FAR struct tcb_s*)g_readytorun.head;
|
||||
dbg("New Active Task TCB=%p\n", rtcb);
|
||||
|
||||
/* Then setup so that the context will be performed on exit
|
||||
* from the interrupt.
|
||||
*/
|
||||
|
||||
g_irqcontext = &tcb->xcp;
|
||||
}
|
||||
|
||||
/* Copy the exception context into the TCB at the (old) head of the
|
||||
* g_readytorun Task list. if up_savecontext returns a non-zero
|
||||
* value, then this is really the previously running task restarting!
|
||||
*/
|
||||
|
||||
else if (!up_savecontext(&rtcb->xcp))
|
||||
{
|
||||
/* Restore the exception context of the rtcb at the (new) head
|
||||
* of the g_readytorun task list.
|
||||
*/
|
||||
|
||||
rtcb = (FAR struct tcb_s*)g_readytorun.head;
|
||||
dbg("New Active Task TCB=%p\n", rtcb);
|
||||
|
||||
/* Then switch contexts */
|
||||
|
||||
up_restorecontext(&rtcb->xcp);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -1,296 +0,0 @@
|
||||
/**************************************************************************
|
||||
* up_restorecontext.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
#include <stdint.h>
|
||||
#include <nuttx/irq.h>
|
||||
#include "up_internal.h"
|
||||
|
||||
/**************************************************************************
|
||||
* Private Definitions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Types
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Function Prototypes
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Global Variables
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Variables
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Functions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Public Functions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Name: up_restoreregisters
|
||||
*
|
||||
* Description:
|
||||
* Restore the saved registers from the context save area. This function
|
||||
* is called from up_restorecontext (below) and also from interrupt
|
||||
* handling logic.
|
||||
*
|
||||
* Note that this function does not restore:
|
||||
* a, dptr, ie - these are saved in the stack area
|
||||
* sp - this can be inferred from g_irqtos or struct xcptontext.nbytes.
|
||||
*
|
||||
* Inputs:
|
||||
* context - the context register array from which to restore the
|
||||
* register values
|
||||
*
|
||||
* Return:
|
||||
* None
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
void up_restoreregisters(FAR uint8_t *regs) _naked
|
||||
{
|
||||
_asm
|
||||
movx a, @dptr
|
||||
mov b, a
|
||||
inc dptr
|
||||
movx a, @dptr
|
||||
mov r2, a
|
||||
inc dptr
|
||||
movx a, @dptr
|
||||
mov r3, a
|
||||
inc dptr
|
||||
movx a, @dptr
|
||||
mov r4, a
|
||||
inc dptr
|
||||
movx a, @dptr
|
||||
mov r5, a
|
||||
inc dptr
|
||||
movx a, @dptr
|
||||
mov r6, a
|
||||
inc dptr
|
||||
movx a, @dptr
|
||||
mov r7, a
|
||||
inc dptr
|
||||
movx a, @dptr
|
||||
mov r0, a
|
||||
inc dptr
|
||||
movx a, @dptr
|
||||
mov r1, a
|
||||
inc dptr
|
||||
movx a, @dptr
|
||||
mov psw, a
|
||||
inc dptr
|
||||
movx a, @dptr
|
||||
mov _bp, a
|
||||
ret
|
||||
_endasm;
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
* Name: up_restorecontext
|
||||
*
|
||||
* Description:
|
||||
* Restore the stack specified in the context structure and return to
|
||||
* that context
|
||||
*
|
||||
* Inputs:
|
||||
* context - Holds the stack content of the context to return to
|
||||
*
|
||||
* Return:
|
||||
* This function does not return.
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
void up_restorecontext(FAR struct xcptcontext *context) __naked
|
||||
{
|
||||
_asm
|
||||
ar2 = 0x02
|
||||
ar3 = 0x03
|
||||
ar4 = 0x04
|
||||
ar5 = 0x05
|
||||
ar6 = 0x06
|
||||
ar7 = 0x07
|
||||
ar0 = 0x00
|
||||
ar1 = 0x01
|
||||
|
||||
/* Dump the contents of the saved frame before it is copied back
|
||||
* to memory/registers.
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_SWITCH_FRAME_DUMP
|
||||
push dpl
|
||||
push dph
|
||||
lcall _up_dumpframe
|
||||
pop dph
|
||||
pop dpl
|
||||
#endif
|
||||
|
||||
/* Interrupts should be disabled for the following. up_popcontext() will
|
||||
* set the new interrupt state correctly.
|
||||
*/
|
||||
|
||||
clr ea
|
||||
|
||||
/* The following logic will copy the stack from the
|
||||
* context save structure into IRAM. We cannot use
|
||||
* the stack in anyway during this copy. Instead,
|
||||
* we will use registers as follows:
|
||||
*
|
||||
* R0 - Holds the working 8-bit IRAM pointer
|
||||
* R1 - Not used
|
||||
* R2-3 - Holds the working 16-bit XRAM pointer
|
||||
* R4 - Holds the working byte count
|
||||
* R5 - Holds the new stack pointer
|
||||
* R6-7 - Saved context pointer
|
||||
*/
|
||||
|
||||
/* Fetch r4 = context->nbytes */
|
||||
|
||||
movx a, @dptr
|
||||
mov r4, a
|
||||
|
||||
/* Save the new stack pointer in r5 */
|
||||
|
||||
add a, #(STACK_BASE-1)
|
||||
mov r5, a
|
||||
|
||||
/* Save r2-3 and r6-r7 = &context->stack */
|
||||
|
||||
inc dptr
|
||||
mov r2, dpl
|
||||
mov r3, dph
|
||||
mov r6, dpl
|
||||
mov r7, dph
|
||||
|
||||
/* Set r0 = stack base address */
|
||||
|
||||
mov r0, #STACK_BASE
|
||||
|
||||
/* Top of the copy loop -- we cannot use the stack
|
||||
* again until we finish the copy and set the new
|
||||
* stack pointer (saved in r5)
|
||||
*/
|
||||
00001$:
|
||||
mov a, r4 /* a = bytes left to transfer */
|
||||
dec r4 /* (for next time through the loop) */
|
||||
jz 00002$ /* Jump if a = 0 (done) */
|
||||
|
||||
/* Fetch the next byte from context->stack */
|
||||
|
||||
mov dpl, r2
|
||||
mov dph, r3
|
||||
movx a, @dptr
|
||||
|
||||
/* Increment the XRAM pointer */
|
||||
|
||||
inc dptr
|
||||
mov r2, dpl
|
||||
mov r3, dph
|
||||
|
||||
/* Save the next byte into IRAM */
|
||||
|
||||
mov @r0, a
|
||||
|
||||
/* Increment the IRAM pointer */
|
||||
|
||||
inc r0
|
||||
sjmp 00001$
|
||||
00002$:
|
||||
|
||||
/* Set the new stack pointer and recover the
|
||||
* context->stack pointer.
|
||||
*/
|
||||
|
||||
mov sp, r5
|
||||
mov dpl, r6
|
||||
mov dph, r7
|
||||
|
||||
/* Dump the stack contents after they have
|
||||
* been restored to IRAM
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_SWITCH_FRAME_DUMP
|
||||
push dpl
|
||||
push dph
|
||||
lcall _up_dumpstack
|
||||
pop dph
|
||||
pop dpl
|
||||
#endif
|
||||
/* Get the pointer to the register save area */
|
||||
|
||||
mov a, #STACK_SIZE
|
||||
add a, dpl
|
||||
mov dpl, a
|
||||
clr a
|
||||
addc a, dph
|
||||
mov dph, a
|
||||
|
||||
/* Restore registers from the register save area */
|
||||
|
||||
lcall _up_restoreregisters
|
||||
|
||||
/* Restore registers from the new stack */
|
||||
|
||||
pop dph
|
||||
pop dpl
|
||||
|
||||
/* Restore the interrupt state per the stored IE value */
|
||||
|
||||
pop acc
|
||||
jb acc.7,00003$
|
||||
clr ie.7
|
||||
sjmp 00004$
|
||||
00003$:
|
||||
setb ie.7
|
||||
|
||||
00004$:
|
||||
pop acc
|
||||
ret
|
||||
_endasm;
|
||||
}
|
||||
|
||||
|
||||
@@ -1,362 +0,0 @@
|
||||
/**************************************************************************
|
||||
* up_savecontext.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
#include <stdint.h>
|
||||
#include <nuttx/irq.h>
|
||||
#include "up_internal.h"
|
||||
|
||||
/**************************************************************************
|
||||
* Private Definitions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Types
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Function Prototypes
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Global Variables
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Variables
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Functions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Name: up_savestack
|
||||
*
|
||||
* Description:
|
||||
* Save the entire interrupt stack contents in the provided context
|
||||
* structure.
|
||||
*
|
||||
* Inputs:
|
||||
* context - the context structure in which to save the stack info
|
||||
*
|
||||
* Return:
|
||||
* None
|
||||
*
|
||||
* Assumptions:
|
||||
* - Interrupts are disabled
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
static void up_savestack(FAR struct xcptcontext *context, uint8_t tos)
|
||||
{
|
||||
/* Copy the current stack frame from internal RAM to XRAM. */
|
||||
|
||||
uint8_t nbytes = tos - (STACK_BASE-1);
|
||||
NEAR uint8_t *src = (NEAR uint8_t*)STACK_BASE;
|
||||
FAR uint8_t *dest = context->stack;
|
||||
|
||||
context->nbytes = nbytes;
|
||||
while (nbytes--)
|
||||
{
|
||||
*dest++ = *src++;
|
||||
}
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
* Name: up_saveregs
|
||||
*
|
||||
* Description:
|
||||
* Save the interrupt registers into the TCB.
|
||||
*
|
||||
* Inputs:
|
||||
* context - the context structure in which to save the register info
|
||||
*
|
||||
* Return:
|
||||
* None
|
||||
*
|
||||
* Assumptions:
|
||||
* - Interrupts are disabled
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
static void up_saveregs(FAR struct xcptcontext *context, uint8_t tos)
|
||||
{
|
||||
/* Copy the irq register save area into the TCB */
|
||||
|
||||
FAR uint8_t *src = g_irqregs;
|
||||
FAR uint8_t *dest = context->regs;
|
||||
uint8_t nbytes = REGS_SIZE;
|
||||
|
||||
while (nbytes--)
|
||||
{
|
||||
*dest++ = *src++;
|
||||
}
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
* Public Functions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Name: up_saveregisters
|
||||
*
|
||||
* Description:
|
||||
* Save the current registers in the context save area. This function
|
||||
* is called from up_savecontext (below) and also from interrupt
|
||||
* handling logic.
|
||||
*
|
||||
* Note that this function does not save:
|
||||
* a, dptr, ie - these are saved in the stack area
|
||||
* sp - this can be inferred from g_irqtos or struct xcptontext.nbytes.
|
||||
*
|
||||
* Inputs:
|
||||
* regs - the context register array in which to save the register info
|
||||
*
|
||||
* Return:
|
||||
* None
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
void up_saveregisters(FAR uint8_t *regs) _naked
|
||||
{
|
||||
_asm
|
||||
mov a, b
|
||||
movx @dptr, a
|
||||
inc dptr
|
||||
mov a, r2
|
||||
movx @dptr, a
|
||||
inc dptr
|
||||
mov a, r3
|
||||
movx @dptr, a
|
||||
inc dptr
|
||||
mov a, r4
|
||||
movx @dptr, a
|
||||
inc dptr
|
||||
mov a, r5
|
||||
movx @dptr, a
|
||||
inc dptr
|
||||
mov a, r6
|
||||
movx @dptr, a
|
||||
inc dptr
|
||||
mov a, r7
|
||||
movx @dptr, a
|
||||
inc dptr
|
||||
mov a, r0
|
||||
movx @dptr, a
|
||||
inc dptr
|
||||
mov a, r1
|
||||
movx @dptr, a
|
||||
inc dptr
|
||||
mov a, psw
|
||||
movx @dptr, a
|
||||
clr psw
|
||||
inc dptr
|
||||
mov a, _bp
|
||||
movx @dptr, a
|
||||
ret
|
||||
_endasm;
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
* Name: up_savecontext
|
||||
*
|
||||
* Description:
|
||||
* Push the current execution context onto the stack, then save the
|
||||
* entire stack contents in the provided context structure.
|
||||
*
|
||||
* Inputs:
|
||||
* context - the context structure in which to save the stack info
|
||||
*
|
||||
* Return:
|
||||
* 0 = Normal state save return
|
||||
* 1 = This is the matching return from up_restorecontext()
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
uint8_t up_savecontext(FAR struct xcptcontext *context) _naked
|
||||
{
|
||||
_asm
|
||||
/* Create the stack frame that we want when it is time to restore
|
||||
* this context. The return address will be the return address
|
||||
* of this function, the return value will be zero.
|
||||
*
|
||||
* ...
|
||||
* return address (2 bytes, already on the stack)
|
||||
* register a=0 (1 byte)
|
||||
* register ie (1 byte)
|
||||
* register dptr (2 bytes)
|
||||
*/
|
||||
|
||||
clr a
|
||||
push acc /* ACC = 0 */
|
||||
push ie
|
||||
mov a, #1
|
||||
push acc /* DPL = 1 */
|
||||
clr a
|
||||
push acc /* DPH = 0 */
|
||||
|
||||
/* Dump the stack contents before they are occupied into XRAM */
|
||||
|
||||
#ifdef CONFIG_SWITCH_FRAME_DUMP
|
||||
push dpl
|
||||
push dph
|
||||
lcall _up_dumpstack
|
||||
pop dph
|
||||
pop dpl
|
||||
#endif
|
||||
/* Disable interrupts while we create a snapshot of the stack
|
||||
* and registers. At this point, we have 5 bytes on the stack
|
||||
* to account for.
|
||||
*/
|
||||
|
||||
push ie
|
||||
mov ea, 0
|
||||
|
||||
/* Save the registers in the context save area */
|
||||
|
||||
push dpl
|
||||
push dph
|
||||
mov a, #XCPT_REGS
|
||||
add a, dpl
|
||||
mov dpl, a
|
||||
clr a
|
||||
addc a, dph
|
||||
mov dph, a
|
||||
lcall _up_saveregisters
|
||||
pop dph
|
||||
pop dpl
|
||||
|
||||
#ifdef CONFIG_SWITCH_FRAME_DUMP
|
||||
/* Save the address of the context structure. We will
|
||||
* need this later to dump the saved frame. Now we have
|
||||
* 7 bytes on the stack to account for.
|
||||
*/
|
||||
|
||||
push dpl
|
||||
push dph
|
||||
|
||||
/* Push the top of frame stack pointer. We need to
|
||||
* decrement the current SP value by three to account
|
||||
* for dptr+IE on the stack above the end of the frame.
|
||||
*/
|
||||
|
||||
mov a, sp
|
||||
subb a, #3
|
||||
#else
|
||||
/* Push the top of frame stack pointer. We need to
|
||||
* decrement the current stack pointer by one to account
|
||||
* for IE that we saved on the stack.
|
||||
*/
|
||||
|
||||
mov a, sp
|
||||
dec a
|
||||
#endif
|
||||
push acc
|
||||
|
||||
/* Copy the current stack frame from internal RAM to XRAM. */
|
||||
|
||||
lcall _up_savestack
|
||||
pop acc
|
||||
|
||||
/* Dump the contents of the saved frame after it has been
|
||||
* copied from memory/registers.
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_SWITCH_FRAME_DUMP
|
||||
pop dph
|
||||
pop dpl
|
||||
push dpl
|
||||
push dph
|
||||
lcall _up_dumpframe
|
||||
pop dph
|
||||
pop dpl
|
||||
lcall _up_dumpstack
|
||||
#endif
|
||||
|
||||
/* Restore the interrupt state */
|
||||
|
||||
pop ie
|
||||
|
||||
/* Now that we have a snapshot of the desired stack frame saved,
|
||||
* we can release the stack frame (all but the return address)
|
||||
*/
|
||||
|
||||
mov a, sp
|
||||
subb a, #4
|
||||
mov sp, a
|
||||
mov dpl,#0
|
||||
ret
|
||||
_endasm;
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
* Name: up_saveirqcontext
|
||||
*
|
||||
* Description:
|
||||
* The interrupt context was saved in g_irqtos and g_irqregs when the
|
||||
* interrupt was taken. If a context switch from the interrupted task
|
||||
* will be made at the interrupt level, then these saved values must be
|
||||
* copied into the TCB.
|
||||
*
|
||||
* Inputs:
|
||||
* context - the structure in which to save the context info
|
||||
*
|
||||
* Return:
|
||||
* None
|
||||
*
|
||||
* Assumptions:
|
||||
* - Interrupts are disabled
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
void up_saveirqcontext(FAR struct xcptcontext *context)
|
||||
{
|
||||
/* Save the number of bytes in the stack */
|
||||
|
||||
context->nbytes = g_irqtos - (STACK_BASE-1);
|
||||
|
||||
/* Copy the current stack frame from internal RAM to XRAM. */
|
||||
|
||||
up_savestack(context, g_irqtos);
|
||||
|
||||
/* Copy the saved registers into the TCB */
|
||||
|
||||
up_saveregisters(context->regs);
|
||||
}
|
||||
@@ -1,147 +0,0 @@
|
||||
/************************************************************************
|
||||
* arch/8051/src/up_timerisr.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009, 2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <stdint.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <8052.h>
|
||||
|
||||
#include "clock/clock.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/************************************************************************
|
||||
* Definitions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Types
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Function Prototypes
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Global Functions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Function: up_timerisr
|
||||
*
|
||||
* Description:
|
||||
* The timer ISR will perform a variety of services for
|
||||
* various portions of the systems.
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
int up_timerisr(int irq, FAR uint8_t *frame)
|
||||
{
|
||||
/* Process timer interrupt */
|
||||
|
||||
sched_process_timer();
|
||||
return 0;
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
* Function: up_timer_initialize
|
||||
*
|
||||
* Description:
|
||||
* This function is called during start-up to initialize
|
||||
* the timer interrupt.
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
void up_timer_initialize(void)
|
||||
{
|
||||
#ifdef CONFIG_ARCH_8051_NOSYSTIMER
|
||||
up_disable_irq(TIMER2_IRQ);
|
||||
|
||||
/* Set up timer 2 -- See pjrc.h for details */
|
||||
|
||||
T2MOD = 0;
|
||||
|
||||
/* Set up the capture count to generate 100Hz system
|
||||
* interrupts.
|
||||
*/
|
||||
|
||||
RCAP2L = TIMER2_CAPTURE_LOW;
|
||||
RCAP2H = TIMER2_CAPTURE_HIGH;
|
||||
|
||||
TL2 = TIMER2_CAPTURE_LOW;
|
||||
TH2 = TIMER2_CAPTURE_HIGH;
|
||||
|
||||
/* Configure for interrupts */
|
||||
|
||||
T2CON = 0x04;
|
||||
|
||||
/* Attach and enable the timer interrupt */
|
||||
|
||||
irq_attach(TIMER2_IRQ, (xcpt_t)up_timerisr);
|
||||
up_enable_irq(TIMER2_IRQ);
|
||||
|
||||
#else
|
||||
/* Timer 0, mode 0 can be used as a system timer. In that mode, the
|
||||
* 1.8432 MHz clock is divided by 32. A single 8-bit value is incremented
|
||||
* at 57600 Hz, which results in 225 Timer 0 overflow interrupts per
|
||||
* second.
|
||||
*/
|
||||
|
||||
up_disable_irq(TIMER0_IRQ);
|
||||
|
||||
/* Initialize timer 0 */
|
||||
|
||||
TR0 = 0; /* Make sure timer 0 is stopped */
|
||||
TF0 = 0; /* Clear the overflow flag */
|
||||
TMOD &= 0xF0; /* Set to mode 0 (without changing timer1) */
|
||||
TL0 = 0; /* Clear timer 0 value */
|
||||
TH0 = 0;
|
||||
|
||||
/* Attach and enable the timer interrupt */
|
||||
|
||||
irq_attach(TIMER0_IRQ, (xcpt_t)up_timerisr);
|
||||
|
||||
TR0 = 1; /* Start the timer */
|
||||
up_enable_irq(TIMER0_IRQ);
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
@@ -1,161 +0,0 @@
|
||||
/************************************************************************
|
||||
* up_unblocktask.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009, 2013 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <nuttx/config.h>
|
||||
|
||||
#include <sched.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include "clock/clock.h"
|
||||
#include "sched/sched.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/************************************************************************
|
||||
* Private Definitions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Data
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Private Funtions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Public Funtions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* 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 taks, executed.
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
void up_unblock_task(FAR struct tcb_s *tcb)
|
||||
{
|
||||
FAR struct tcb_s *rtcb = (FAR struct tcb_s*)g_readytorun.head;
|
||||
|
||||
/* Verify that the context switch can be performed */
|
||||
|
||||
ASSERT((tcb->task_state >= FIRST_BLOCKED_STATE) &&
|
||||
(tcb->task_state <= LAST_BLOCKED_STATE));
|
||||
|
||||
dbg("Unblocking TCB=%p\n", tcb);
|
||||
|
||||
/* Remove the task from the blocked task list */
|
||||
|
||||
sched_removeblocked(tcb);
|
||||
|
||||
/* Reset its timeslice. This is only meaningful for round
|
||||
* robin tasks but it doesn't here to do it for everything
|
||||
*/
|
||||
|
||||
#if CONFIG_RR_INTERVAL > 0
|
||||
tcb->timeslice = MSEC2TICK(CONFIG_RR_INTERVAL);
|
||||
#endif
|
||||
|
||||
/* Add the task in the correct location in the prioritized
|
||||
* g_readytorun task list
|
||||
*/
|
||||
|
||||
if (sched_addreadytorun(tcb))
|
||||
{
|
||||
/* The currently active task has changed! We need to do
|
||||
* a context switch to the new task.
|
||||
*
|
||||
* Are we in an interrupt handler?
|
||||
*/
|
||||
|
||||
if (g_irqtos)
|
||||
{
|
||||
/* Yes, then we have to do things differently.
|
||||
* Just copy the current stack into the OLD rtcb.
|
||||
*/
|
||||
|
||||
up_saveirqcontext(&rtcb->xcp);
|
||||
|
||||
/* Restore the exception context of the rtcb at the (new) head
|
||||
* of the g_readytorun task list.
|
||||
*/
|
||||
|
||||
rtcb = (FAR struct tcb_s*)g_readytorun.head;
|
||||
dbg("New Active Task TCB=%p\n", rtcb);
|
||||
|
||||
/* Then setup so that the context will be performed on exit
|
||||
* from the interrupt.
|
||||
*/
|
||||
|
||||
g_irqcontext = &rtcb->xcp;
|
||||
}
|
||||
|
||||
/* We are not in an interrupt andler. Copy the user C context
|
||||
* into the TCB of the task that was previously active. if
|
||||
* up_savecontext returns a non-zero value, then this is really the
|
||||
* previously running task restarting!
|
||||
*/
|
||||
|
||||
else if (!up_savecontext(&rtcb->xcp))
|
||||
{
|
||||
/* 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
|
||||
* g_readytorun task list.
|
||||
*/
|
||||
|
||||
rtcb = (FAR struct tcb_s*)g_readytorun.head;
|
||||
dbg("New Active Task TCB=%p\n", rtcb);
|
||||
|
||||
/* Then switch contexts */
|
||||
|
||||
up_restorecontext(&rtcb->xcp);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -1,7 +0,0 @@
|
||||
#
|
||||
# For a description of the syntax of this configuration file,
|
||||
# see misc/tools/kconfig-language.txt.
|
||||
#
|
||||
|
||||
if ARCH_BOARD_PJRC_87C52
|
||||
endif
|
||||
@@ -1,170 +0,0 @@
|
||||
############################################################################
|
||||
# configs/pjrc-8051/Make.defs
|
||||
#
|
||||
# Copyright (C) 2007, 2008, 2012 Gregory Nutt. All rights reserved.
|
||||
# Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
#
|
||||
# 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 ${TOPDIR}/tools/Config.mk
|
||||
|
||||
# These are the directories where the SDCC toolchain is installed. NOTE
|
||||
# that short 8.3 path names are used in order to avoid spaces. On my machine
|
||||
# I have:
|
||||
#
|
||||
# C:\PROGRA~1\ = C:\Profram Files\
|
||||
# C:\PROGRA~2\ = C:\Program Files (x86)\
|
||||
#
|
||||
# Your PC may be configured differently.
|
||||
|
||||
ifeq ($(CONFIG_WINDOWS_NATIVE),y)
|
||||
SDCC_INSTALLDIR = C:\PROGRA~2\SDCC
|
||||
SDCC_BINDIR = $(SDCC_INSTALLDIR)\bin
|
||||
SDCC_LIBDIR = $(SDCC_INSTALLDIR)\lib\large-stack-auto
|
||||
else
|
||||
SDCC_INSTALLDIR = /usr/local
|
||||
SDCC_BINDIR = $(SDCC_INSTALLDIR)/bin
|
||||
SDCC_LIBDIR = $(SDCC_INSTALLDIR)/share/sdcc/lib/large-stack-auto
|
||||
endif
|
||||
|
||||
CROSSDEV =
|
||||
CC = sdcc
|
||||
CPP = sdcpp
|
||||
LD = sdld
|
||||
AS = sdas8051
|
||||
AR = sdar -r
|
||||
|
||||
IRAM_SIZE = 0x100
|
||||
DEF_STACK_BASE = 0x24
|
||||
|
||||
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
|
||||
ARCHOPTIMIZATION = --debug
|
||||
else
|
||||
ARCHOPTIMIZATION =
|
||||
endif
|
||||
|
||||
ARCHCPUFLAGS = -mmcs51 --stack-auto --model-large --int-long-reent --float-reent
|
||||
ARCHPICFLAGS =
|
||||
ARCHWARNINGS =
|
||||
ARCHDEFINES =
|
||||
ARCHINCLUDES = -I. -I$(TOPDIR)/include
|
||||
|
||||
CFLAGS = $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
|
||||
CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
|
||||
AFLAGS = -x -j -g -l -s -p
|
||||
|
||||
SDCCLIB = libsdcc.lib
|
||||
|
||||
ASMEXT = .asm
|
||||
OBJEXT = .rel
|
||||
LIBEXT = .lib
|
||||
EXEEXT = .hex
|
||||
|
||||
# Custom ASSEMBLE definition. The most common toolchain, GCC, uses the
|
||||
# compiler to assemble files because this has the advantage of running the C
|
||||
# Pre-Processor against. This is not possible with other SDCC; we need to
|
||||
# define AS and over-ride the common definition in order to use the assembler
|
||||
# directly.
|
||||
|
||||
define ASSEMBLE
|
||||
@echo "AS: $1"
|
||||
@$(AS) $(AFLAGS) $1
|
||||
endef
|
||||
|
||||
# Custom CLEAN definition
|
||||
|
||||
ifeq ($(CONFIG_WINDOWS_NATIVE),y)
|
||||
define CLEAN
|
||||
$(Q) if exist *.o (del /f /q *.o)
|
||||
$(Q) if exist *.asm (del /f /q *.asm)
|
||||
$(Q) if exist *.rel (del /f /q *.rel)
|
||||
$(Q) if exist *.lst (del /f /q *.lst)
|
||||
$(Q) if exist *.rst (del /f /q *.rst)
|
||||
$(Q) if exist *.sym (del /f /q *.sym)
|
||||
$(Q) if exist *.adb (del /f /q *.adb)
|
||||
$(Q) if exist *.lnk (del /f /q *.lnk)
|
||||
$(Q) if exist *.map (del /f /q *.map)
|
||||
$(Q) if exist *.mem (del /f /q *.mem)
|
||||
$(Q) if exist *.hex (del /f /q *.hex)
|
||||
$(Q) if exist *.cmd (del /f /q *.cmd)
|
||||
endef
|
||||
else
|
||||
define CLEAN
|
||||
$(Q) rm -f *.o *.asm *.rel *.lst *.rst *.sym *.adb *.lnk *.map *.mem *.hex *.cmd
|
||||
endef
|
||||
endif
|
||||
|
||||
# Windows native host tool definitions
|
||||
|
||||
ifeq ($(CONFIG_WINDOWS_NATIVE),y)
|
||||
HOSTCC = mingw32-gcc.exe
|
||||
HOSTINCLUDES = -I.
|
||||
HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -g -pipe
|
||||
HOSTLDFLAGS =
|
||||
HOSTEXEEXT = .exe
|
||||
|
||||
# Windows-native host tools
|
||||
|
||||
MKDEP = $(TOPDIR)\tools\mkdeps.exe --winnative
|
||||
|
||||
# Use NTFS links or directory copies
|
||||
|
||||
ifeq ($(CONFIG_WINDOWS_MKLINK),y)
|
||||
DIRLINK = $(TOPDIR)$(DELIM)tools$(DELIM)link.bat
|
||||
else
|
||||
DIRLINK = $(TOPDIR)$(DELIM)tools$(DELIM)copydir.bat
|
||||
endif
|
||||
DIRUNLINK = $(TOPDIR)$(DELIM)tools$(DELIM)unlink.bat
|
||||
|
||||
else
|
||||
|
||||
# Linux/Cygwin host tool definitions
|
||||
|
||||
HOSTCC = gcc
|
||||
HOSTINCLUDES = -I.
|
||||
HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -g -pipe
|
||||
HOSTLDFLAGS =
|
||||
|
||||
# This is the tool to use for dependencies (i.e., none)
|
||||
|
||||
MKDEP = $(TOPDIR)$(DELIM)tools$(DELIM)mknulldeps.sh
|
||||
|
||||
# SDCC for Linux, OSX, or Cygwin understands symbolic links. Windows SDCC
|
||||
# running under Cygwin does not
|
||||
|
||||
ifeq ($(WINTOOL),y)
|
||||
DIRLINK = $(TOPDIR)$(DELIM)tools$(DELIM)copydir.sh
|
||||
else
|
||||
DIRLINK = $(TOPDIR)$(DELIM)tools$(DELIM)link.sh
|
||||
endif
|
||||
DIRUNLINK = $(TOPDIR)$(DELIM)tools$(DELIM)unlink.sh
|
||||
|
||||
endif
|
||||
@@ -1,54 +0,0 @@
|
||||
pjrc-8051 README
|
||||
^^^^^^^^^^^^^^^^
|
||||
|
||||
This port uses the PJRC 87C52 development system and the SDCC toolchain.
|
||||
|
||||
The PJRC 87C52 development system can be obtained from http://www.pjrc.com/.
|
||||
|
||||
The SDCC toolchain is available from http://sdcc.sourceforge.net/. All
|
||||
testing has been performed using verison 2.6.0 of the SDDC toolchain.
|
||||
|
||||
Building the SDCC toolchain
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
The SDCC toolchain is built with the standard configure/make/make install
|
||||
sequence. However, some special actions are required to generate libraries
|
||||
compatible with this build. First start with the usual steps
|
||||
|
||||
download
|
||||
unpack
|
||||
cd sdcc
|
||||
./configure
|
||||
make
|
||||
|
||||
But before installing, we need to apply a patch to the SDCC 2.6.0 source.
|
||||
WARNING: This patch is specific to the particular combination of CFLAGS
|
||||
that are used in the compilation. If you change Make.defs, then you will
|
||||
likely have to change the patch as well.
|
||||
|
||||
Apply sdcc-2.6.0.patch
|
||||
cd sdcc/device/lib
|
||||
make model-mcs51-stack-auto
|
||||
|
||||
Then
|
||||
|
||||
cd sdcc
|
||||
make install
|
||||
|
||||
Status
|
||||
^^^^^^
|
||||
|
||||
On December 9, 2012, I made updates so that the 8051 port could use the
|
||||
newest SDCC toolchain (a pre-3.2.1 at that time). However, when I attempted
|
||||
to build the PJRC-8051 configuration, I got type incompatibility errors
|
||||
from sched/os_bringup.c. From what I gather by googling, this is a compiler
|
||||
bug related to the --stack-auto option.
|
||||
|
||||
I have not been successful working around those bugs and I believe that
|
||||
these are 8051-related bugs in the SDCC toolchain. This needs to be
|
||||
revisited with a later version of SDCC.
|
||||
|
||||
This configuration was last successfully built and tested with a ca.
|
||||
2.6.0 SDCC release. Support for that older toolchain was removed in
|
||||
NuttX revision -r5423. If you wanted to used those older toolchains,
|
||||
you would need to revert to a pre-r5423 revision.
|
||||
File diff suppressed because it is too large
Load Diff
@@ -1,51 +0,0 @@
|
||||
/************************************************************
|
||||
* board/board.h
|
||||
*
|
||||
* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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_BOARD_BOARD_H
|
||||
#define __ARCH_BOARD_BOARD_H
|
||||
|
||||
/************************************************************
|
||||
* Included Files
|
||||
************************************************************/
|
||||
|
||||
/************************************************************
|
||||
* Definitions
|
||||
************************************************************/
|
||||
|
||||
/************************************************************
|
||||
* Inline Functions
|
||||
************************************************************/
|
||||
|
||||
#endif /* __ARCH_BOARD_BOARD_H */
|
||||
@@ -1,215 +0,0 @@
|
||||
/**************************************************************************
|
||||
* pjrc.h
|
||||
*
|
||||
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 Gregory Nutt 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 __PJRC_H
|
||||
#define __PJRC_H
|
||||
|
||||
/**************************************************************************
|
||||
* Included Files
|
||||
**************************************************************************/
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
/**************************************************************************
|
||||
* Public Definitions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Public Types
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Public Variables
|
||||
**************************************************************************/
|
||||
|
||||
/* Memory Map
|
||||
*
|
||||
* BEGIN END DESCRIPTION
|
||||
* 0x0000 0x1fff CODE: ROM containg PAULMON2
|
||||
* DATA: RAM for program variables
|
||||
* 0x2000 0x7fff COMMON: RAM for program code or
|
||||
* variables
|
||||
* 0x8000 0xf7ff COMMON: FLASH for program code
|
||||
* 0xf800 0xfeff COMMON: Peripherals
|
||||
* 0xff00 0xffff COMMON: unused
|
||||
*
|
||||
* Program code may be loaded at the RAM location 0x2000-0x7fff
|
||||
* for testing. If loaded into the FLASH location at
|
||||
* 0x8000-0xf7ff, PAULMON2 will automatically write the program
|
||||
* into flash. The program is configured in the RAM-based test
|
||||
* configuration:
|
||||
*/
|
||||
|
||||
#define RAM_BLOCK_START IRAM_SIZE
|
||||
#define RAM_BLOCK_END 0x1fff
|
||||
|
||||
#define PROGRAM_BASE 0x2000
|
||||
#define PROGRAM_END 0x7fff
|
||||
|
||||
#define FLASH_BASE 0x8000
|
||||
#define FLASH_END 0xf7ff
|
||||
|
||||
/* Well-known entry points to access PAULMON2's built-in functions */
|
||||
|
||||
#define PM2_ENTRY_PHEX1 0x002e
|
||||
#define PM2_ENTRY_COUT 0x0030
|
||||
#define PM2_ENTRY_CIN 0x0032
|
||||
#define PM2_ENTRY_PHEX 0x0034
|
||||
#define PM2_ENTRY_PHEX16 0x0036
|
||||
#define PM2_ENTRY_PSTR 0x0038
|
||||
#define PM2_ENTRY_ESC 0x003e
|
||||
#define PM2_ENTRY_UPPER 0x0040
|
||||
#define PM2_ENTRY_PINT8U 0x004D
|
||||
#define PM2_ENTRY_PINT8 0x0050
|
||||
#define PM2_ENTRY_PINT16U 0x0053
|
||||
#define PM2_ENTRY_NEWLINE 0x0048
|
||||
#define PM2_ENTRY_PRGM 0x0059
|
||||
#define PM2_ENTRY_ERBLOCK 0x0067
|
||||
|
||||
/* PAULMON2 captures all interrupt vectors in ROM but relays them
|
||||
* through the following RAM addresses:
|
||||
*/
|
||||
|
||||
#define PM2_VECTOR_BASE PROGRAM_BASE
|
||||
#define PM2_VECTOR_EXTINT0 (PM2_VECTOR_BASE + 3)
|
||||
#define PM2_VECTOR_TIMER0 (PM2_VECTOR_BASE + 11)
|
||||
#define PM2_VECTOR_EXTINT1 (PM2_VECTOR_BASE + 19)
|
||||
#define PM2_VECTOR_TIMER1 (PM2_VECTOR_BASE + 27)
|
||||
#define PM2_VECTOR_UART (PM2_VECTOR_BASE + 35)
|
||||
#define PM2_VECTOR_TIMER2 (PM2_VECTOR_BASE + 43)
|
||||
|
||||
/* Peripheral Mapping
|
||||
*
|
||||
* Begin End Peripheral Addr Acc Function
|
||||
* F800 F8FF 82C55 (A, B, C) F800 R/W Port A
|
||||
* F801 R/W Port B
|
||||
* F802 R/W Port C
|
||||
* F803 W Config A,B,C
|
||||
* F900 F9FF 82C55 (D, E, F) F900 R/W Port D
|
||||
* F901 R/W Port E (LEDs)
|
||||
* F902 R/W Port F
|
||||
* F903 W Config D,E,F
|
||||
* FA00 FAFF User Expansion
|
||||
* FB00 FBFF User Expansion
|
||||
* FC00 FCFF User Expansion
|
||||
* FD00 FDFF User Expansion
|
||||
* FE00 FEFF LCD Port FE00 W Command Register
|
||||
* FE01 R Status Register
|
||||
* FE02 W Display or CGRAM Buffer
|
||||
* FE03 R " " "" " " " "
|
||||
*
|
||||
* These are the memory-mapped locations used to access the two 82C55
|
||||
* chips
|
||||
*/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
xdata at 0xF800 uint8_t p82c55_port_a;
|
||||
xdata at 0xF801 uint8_t p82c55_port_b;
|
||||
xdata at 0xF802 uint8_t p82c55_port_c;
|
||||
xdata at 0xF803 uint8_t p82c55_abc_config;
|
||||
xdata at 0xF900 uint8_t p82c55_port_d;
|
||||
xdata at 0xF901 uint8_t p82c55_port_e;
|
||||
xdata at 0xF902 uint8_t p82c55_port_f;
|
||||
xdata at 0xF903 uint8_t p82c55_def_config;
|
||||
#endif
|
||||
|
||||
/* LED (Port E) bit definitions */
|
||||
|
||||
#define LED_STARTED 0
|
||||
#define LED_HEAPALLOCATE 1
|
||||
#define LED_IRQSENABLED 2
|
||||
#define LED_IDLE 3
|
||||
#define LED_UNUSED2 4
|
||||
#define LED_INIRQ 5
|
||||
#define LED_ASSERTION 6
|
||||
#define LED_PANIC 7
|
||||
|
||||
/* Registers. 8052 regiser definitions are provided in the SDCC header
|
||||
* file 8052.h. However, a few SFR registers are missing from that
|
||||
* file (they can be found in mcs51reg.h, but that file is too much
|
||||
* when the following simple addtions do the job).
|
||||
*/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
sfr at 0xc9 T2MOD ;
|
||||
#endif
|
||||
|
||||
/* Timing information.
|
||||
*
|
||||
* The PJRC board is based on a standard 87C52 CPU clocked at 22.1184 MHz.
|
||||
* The CPU clock is divided by 12 to yield a clock frequency of 1.8432 MHz.
|
||||
*/
|
||||
|
||||
#define CPU_CLOCK_HZ 22118400L
|
||||
#define TIMER_CLOCK_HZ 1843200L
|
||||
|
||||
/* The 87C52 has three timers, timer 0, timer 1, and timer 2. On the PJRC
|
||||
* board, timer 1 and 2 have dedicated functions. They provide baud support
|
||||
* support for the boards two serial ports. Unfortunately, only timer 2
|
||||
* can generate the accurate 100Hz timer desired by the OS.
|
||||
*
|
||||
* Timer 0 provides only a 8-bit auto-reload mode.
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_8052_TIMER2
|
||||
|
||||
/* To use timer 2 as the 100Hz system timer, we need to calculate a 16-bit
|
||||
* reload value that results in 100Hz overflow interrupts. That value
|
||||
* is given by:
|
||||
*
|
||||
* Timer ticks = TIMER_CLOCK_HZ / (desired ticks-per-second)
|
||||
* = 18432
|
||||
* Capture value = 0xffff - (Timer ticks)
|
||||
* = 47103 = 0x67ff
|
||||
*/
|
||||
|
||||
# define TIMER2_CAPTURE_LOW 0xff
|
||||
# define TIMER2_CAPTURE_HIGH 0x67
|
||||
|
||||
#else
|
||||
|
||||
/* Timer 0, mode 0 can be used as a system timer. In that mode, the
|
||||
* 1.8432 is further divided by 32. A single 8-bit value is incremented
|
||||
* at 57600 Hz, which results in 225 Timer 0 overflow interrupts per
|
||||
* second.
|
||||
*/
|
||||
|
||||
#endif
|
||||
|
||||
/**************************************************************************
|
||||
* Public Function Prototypes
|
||||
**************************************************************************/
|
||||
|
||||
#endif /* __PJRC_H */
|
||||
@@ -1,28 +0,0 @@
|
||||
diff -u sdcc/device/lib/Makefile.orig sdcc/device/lib/Makefile
|
||||
--- sdcc/device/lib/Makefile.orig 2007-03-06 09:55:01.000000000 -0600
|
||||
+++ sdcc/device/lib/Makefile 2007-03-06 09:58:32.000000000 -0600
|
||||
@@ -242,7 +242,7 @@
|
||||
model-mcs51-stack-auto:
|
||||
if [ "`grep mcs51 $(top_builddir)ports.build`" = mcs51 ]; then \
|
||||
for model in $(MODELS); do \
|
||||
- $(MAKE) MODELFLAGS="--model-$$model --stack-auto" PORT=$$model PORTDIR=$(BUILDDIR)/$$model-stack-auto PORTINCDIR=$(INCDIR)/mcs51 objects; \
|
||||
+ $(MAKE) MODELFLAGS="--model-$$model --stack-auto --int-long-reent --float-reent" PORT=$$model PORTDIR=$(BUILDDIR)/$$model-stack-auto PORTINCDIR=$(INCDIR)/mcs51 objects; \
|
||||
done \
|
||||
fi
|
||||
|
||||
diff -u sdcc/device/include/stdarg.h.orig sdcc/device/include/stdarg.h
|
||||
--- sdcc/device/include/stdarg.h.orig 2007-03-11 13:21:15.000000000 -0600
|
||||
+++ sdcc/device/include/stdarg.h 2007-03-11 13:26:59.000000000 -0600
|
||||
@@ -25,9 +25,9 @@
|
||||
|
||||
#else
|
||||
|
||||
-typedef unsigned char __data * va_list ;
|
||||
-#define va_arg(marker,type) *((type __data * )(marker -= sizeof(type)))
|
||||
-#define va_start(marker,first) { marker = (va_list) ((char __data * )&first); }
|
||||
+typedef unsigned char * va_list ;
|
||||
+#define va_arg(marker,type) *((type * )(marker -= sizeof(type)))
|
||||
+#define va_start(marker,first) { marker = (va_list) ((char * )&first); }
|
||||
|
||||
#endif
|
||||
|
||||
@@ -1,65 +0,0 @@
|
||||
#!/bin/bash
|
||||
# configs/pjrc-8051/setenv.sh
|
||||
#
|
||||
# Copyright (C) 2007-2008, 2012 Gregory Nutt. All rights reserved.
|
||||
# Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
#
|
||||
# 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="${PATH}"
|
||||
fi
|
||||
|
||||
#
|
||||
# This is the normal installation directory for SDCC under Linux, OSX
|
||||
# or Linux:
|
||||
#
|
||||
export TOOLCHAIN_BIN=/usr/local/bin
|
||||
|
||||
#
|
||||
# This is the normal installation directory for SDCC under Windows
|
||||
#
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/SDCC/bin"
|
||||
|
||||
#
|
||||
# Add the path to the toolchain to the PATH varialble
|
||||
#
|
||||
export PATH="${TOOLCHAIN_BIN}":/sbin:/usr/sbin:${PATH_ORIG}
|
||||
echo "PATH : ${PATH}"
|
||||
@@ -1,15 +0,0 @@
|
||||
/Make.dep
|
||||
/.depend
|
||||
/up_mem.h
|
||||
/*.sym
|
||||
/*.asm
|
||||
/*.rel
|
||||
/*.lst
|
||||
/*.adb
|
||||
/*.rst
|
||||
/*.lib
|
||||
/*.lnk
|
||||
/*.map
|
||||
/*.mem
|
||||
/*.ihx
|
||||
/*.hex
|
||||
@@ -1,75 +0,0 @@
|
||||
############################################################################
|
||||
# configs/pjrc-8051/src/Makefile
|
||||
#
|
||||
# Copyright (C) 2007, 2008, 2012 Gregory Nutt. All rights reserved.
|
||||
# Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
#
|
||||
# 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 $(TOPDIR)/Make.defs
|
||||
|
||||
CFLAGS += -I$(TOPDIR)/sched
|
||||
|
||||
ASRCS =
|
||||
AOBJS = $(ASRCS:.S=$(OBJEXT))
|
||||
CSRCS = up_leds.c
|
||||
COBJS = $(CSRCS:.c=$(OBJEXT))
|
||||
|
||||
SRCS = $(ASRCS) $(CSRCS)
|
||||
OBJS = $(AOBJS) $(COBJS)
|
||||
|
||||
CFLAGS += -I $(TOPDIR)/arch/$(CONFIG_ARCH)/src
|
||||
|
||||
all: libboard$(LIBEXT)
|
||||
|
||||
$(AOBJS): %$(OBJEXT): %.S
|
||||
$(call ASSEMBLE, $<, $@)
|
||||
|
||||
$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
|
||||
$(call COMPILE, $<, $@)
|
||||
|
||||
libboard$(LIBEXT): $(OBJS)
|
||||
$(call ARCHIVE, $@, $(OBJS))
|
||||
|
||||
.depend: Makefile $(SRCS)
|
||||
$(Q) $(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
|
||||
$(Q) touch $@
|
||||
|
||||
depend: .depend
|
||||
|
||||
clean:
|
||||
$(call DELFILE, libboard$(LIBEXT))
|
||||
$(call CLEAN)
|
||||
|
||||
distclean: clean
|
||||
$(call DELFILE, Make.dep)
|
||||
$(call DELFILE, .depend)
|
||||
|
||||
-include Make.dep
|
||||
@@ -1,207 +0,0 @@
|
||||
/************************************************************************
|
||||
* up_leds.c
|
||||
*
|
||||
* Copyright (C) 2007, 2009, 2013 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 Gregory Nutt 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 <nuttx/config.h>
|
||||
#include <stdint.h>
|
||||
#include "up_internal.h"
|
||||
|
||||
/************************************************************************
|
||||
* Definitions
|
||||
************************************************************************/
|
||||
|
||||
#define RESET_KLUDGE_NEEDED 1
|
||||
|
||||
/************************************************************************
|
||||
* Private Data
|
||||
************************************************************************/
|
||||
|
||||
static uint8_t g_ledstate;
|
||||
|
||||
/************************************************************************
|
||||
* Private Functions
|
||||
************************************************************************/
|
||||
|
||||
#if defined(CONFIG_DEBUG_LEDS) && defined(CONFIG_ARCH_LEDS)
|
||||
static void _up_puthex(uint8_t hex) __naked
|
||||
{
|
||||
hex; /* To avoid unreferenced argument warning */
|
||||
_asm
|
||||
mov a, dpl
|
||||
ljmp PM2_ENTRY_PHEX
|
||||
_endasm;
|
||||
}
|
||||
|
||||
static void _up_putch(uint8_t ch) __naked
|
||||
{
|
||||
_asm
|
||||
mov a, dpl
|
||||
ljmp PM2_ENTRY_COUT
|
||||
_endasm;
|
||||
}
|
||||
|
||||
static void _up_putnl(void) __naked
|
||||
{
|
||||
_asm
|
||||
ljmp PM2_ENTRY_NEWLINE
|
||||
_endasm;
|
||||
}
|
||||
|
||||
# define _up_showledinit() \
|
||||
_up_putch('I'); \
|
||||
_up_puthex(g_ledstate); _up_putch(':'); \
|
||||
_up_puthex(p82c55_port_e); _up_putnl();
|
||||
|
||||
# define _up_showledreset() \
|
||||
_up_putch('R'); \
|
||||
_up_puthex(led); _up_putch(':'); \
|
||||
_up_puthex(g_ledstate); _up_putch(':'); \
|
||||
_up_puthex(p82c55_port_e); _up_putnl();
|
||||
|
||||
# define _up_showledon() \
|
||||
_up_putch('+'); \
|
||||
_up_puthex(led); _up_putch(':'); \
|
||||
_up_puthex(g_ledstate); _up_putch(':'); \
|
||||
_up_puthex(p82c55_port_e); _up_putnl();
|
||||
|
||||
# define _up_showledoff() \
|
||||
_up_putch('-'); \
|
||||
_up_puthex(led); _up_putch(':'); \
|
||||
_up_puthex(g_ledstate); _up_putch(':'); \
|
||||
_up_puthex(p82c55_port_e); _up_putnl();
|
||||
|
||||
#else
|
||||
|
||||
# define _up_showledinit()
|
||||
# define _up_showledreset()
|
||||
# define _up_showledon()
|
||||
# define _up_showledoff()
|
||||
|
||||
#endif
|
||||
|
||||
/************************************************************************
|
||||
* Public Funtions
|
||||
************************************************************************/
|
||||
|
||||
/************************************************************************
|
||||
* Name: board_led_initialize
|
||||
************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ARCH_LEDS
|
||||
void board_led_initialize(void)
|
||||
{
|
||||
/* Set all ports as outputs */
|
||||
|
||||
p82c55_def_config = 128;
|
||||
|
||||
/* Turn LED 1-7 off; turn LED 0 on */
|
||||
|
||||
g_ledstate = 0xfe;
|
||||
p82c55_port_e = g_ledstate;
|
||||
|
||||
_up_showledinit();
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
* Name: board_led_on
|
||||
************************************************************************/
|
||||
|
||||
void board_led_on(uint8_t led)
|
||||
{
|
||||
/* This may be called from an interrupt handler */
|
||||
|
||||
irqstate_t flags = irqsave();
|
||||
|
||||
#ifdef RESET_KLUDGE_NEEDED
|
||||
/* I don't understand why this happens yet, but sometimes
|
||||
* it is necessary to reconfigure port E.
|
||||
*/
|
||||
|
||||
if (g_ledstate != p82c55_port_e)
|
||||
{
|
||||
_up_showledreset();
|
||||
p82c55_def_config = 128;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Clear the bit in port E corresponding to LED to turn it on */
|
||||
|
||||
if (led < 8)
|
||||
{
|
||||
g_ledstate &= ~(g_ntobit[led]);
|
||||
p82c55_port_e = g_ledstate;
|
||||
}
|
||||
|
||||
_up_showledon();
|
||||
irqrestore(flags);
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
* Name: board_led_off
|
||||
************************************************************************/
|
||||
|
||||
void board_led_off(uint8_t led)
|
||||
{
|
||||
/* This may be called from an interrupt handler */
|
||||
|
||||
irqstate_t flags = irqsave();
|
||||
|
||||
#ifdef RESET_KLUDGE_NEEDED
|
||||
/* I don't understand why this happens yet, but sometimes
|
||||
* it is necessary to reconfigure port E.
|
||||
*/
|
||||
|
||||
if (g_ledstate != p82c55_port_e)
|
||||
{
|
||||
_up_showledreset();
|
||||
p82c55_def_config = 128;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Set the bit in port E corresponding to LED to turn it off */
|
||||
|
||||
if (led < 8)
|
||||
{
|
||||
g_ledstate |= g_ntobit[led];
|
||||
p82c55_port_e = g_ledstate;
|
||||
}
|
||||
|
||||
_up_showledoff();
|
||||
irqrestore(flags);
|
||||
}
|
||||
#endif /* CONFIG_ARCH_LEDS */
|
||||
Reference in New Issue
Block a user