mirror of
https://github.com/apache/nuttx.git
synced 2026-06-06 08:36:24 +08:00
Add framework for AVR
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2961 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
@@ -0,0 +1,82 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/include/arch.h
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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_AVR_INCLUDE_ARCH_H
|
||||
#define __ARCH_AVR_INCLUDE_ARCH_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Inline functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Variables
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef __cplusplus
|
||||
#define EXTERN extern "C"
|
||||
extern "C" {
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
#undef EXTERN
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ARCH_AVR_INCLUDE_ARCH_H */
|
||||
|
||||
Executable
+92
@@ -0,0 +1,92 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/include/at91uc3/irq.h
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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_AVR_INCLUDE_AT91UC3_IRQ_H
|
||||
#define __ARCH_AVR_INCLUDE_AT91UC3_IRQ_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
# include <stdint.h>
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* IRQ numbers */
|
||||
|
||||
/* Total number of IRQ numbers */
|
||||
|
||||
#define NR_IRQS
|
||||
|
||||
/****************************************************************************
|
||||
* 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_AVR_INCLUDE_AT91UC3_IRQ_H */
|
||||
|
||||
@@ -0,0 +1,123 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/include/avr32/irq.h
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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_AVR_INCLUDE_AVR32_IRQ_H
|
||||
#define __ARCH_AVR_INCLUDE_AVR32_IRQ_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/irq.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* Indices the register state save array */
|
||||
|
||||
#defin XCPTCONTEXT_REGS 1
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
/* This struct defines the way the registers are stored. */
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
struct xcptcontext
|
||||
{
|
||||
/* The following function pointer is non-zero if there
|
||||
* are pending signals to be processed.
|
||||
*/
|
||||
|
||||
#ifndef CONFIG_DISABLE_SIGNALS
|
||||
void *sigdeliver; /* Actual type is sig_deliver_t */
|
||||
#endif
|
||||
|
||||
/* Register save area */
|
||||
|
||||
uint32_t regs[XCPTCONTEXT_REGS];
|
||||
};
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Inline functions
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
/* Save the current interrupt enable state & disable IRQs */
|
||||
|
||||
static inline irqstate_t irqsave(void)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Restore saved IRQ & FIQ state */
|
||||
|
||||
static inline void irqrestore(irqstate_t flags)
|
||||
{
|
||||
}
|
||||
#endif /* __ASSEMBLY__ */
|
||||
|
||||
/****************************************************************************
|
||||
* 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_AVR_INCLUDE_AVR32_IRQ_H */
|
||||
|
||||
@@ -0,0 +1,100 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/include/irq.h
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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_AVR_INCLUDE_IRQ_H
|
||||
#define __ARCH_AVR_INCLUDE_IRQ_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
/* Include NuttX-specific IRQ definitions */
|
||||
|
||||
#include <nuttx/irq.h>
|
||||
|
||||
/* Include chip-specific IRQ definitions (including IRQ numbers) */
|
||||
|
||||
#include <arch/chip/irq.h>
|
||||
|
||||
/* Include AVR architecture-specific IRQ definitions (including register
|
||||
* save structure and irqsave()/irqrestore() macros
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_ARCH_AVR32
|
||||
# include <arch/avr32/irq.h>
|
||||
#else
|
||||
# include <arch/avr/irq.h>
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* 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_AVR_INCLUDE_IRQ_H */
|
||||
|
||||
@@ -0,0 +1,82 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/include/limits.h
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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_AVR_INCLUDE_LIMITS_H
|
||||
#define __ARCH_AVR_INCLUDE_LIMITS_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#define CHAR_BIT 8
|
||||
#define SCHAR_MIN 0x80
|
||||
#define SCHAR_MAX 0x7f
|
||||
#define UCHAR_MAX 0xff
|
||||
|
||||
/* These could be different on machines where char is unsigned */
|
||||
|
||||
#define CHAR_MIN SCHAR_MIN
|
||||
#define CHAR_MAX SCHAR_MAX
|
||||
|
||||
#define SHRT_MIN 0x8000
|
||||
#define SHRT_MAX 0x7fff
|
||||
#define USHRT_MAX 0xffff
|
||||
|
||||
#define INT_MIN 0x80000000
|
||||
#define INT_MAX 0x7fffffff
|
||||
#define UINT_MAX 0xffffffff
|
||||
|
||||
/* These change on 32-bit and 64-bit platforms */
|
||||
|
||||
#define LONG_MAX 0x80000000
|
||||
#define LONG_MIN 0x7fffffff
|
||||
#define ULONG_MAX 0xffffffff
|
||||
|
||||
#define LLONG_MAX 0x8000000000000000
|
||||
#define LLONG_MIN 0x7fffffffffffffff
|
||||
#define ULLONG_MAX 0xffffffffffffffff
|
||||
|
||||
/* A pointer is 4 bytes */
|
||||
|
||||
#define PTR_MIN 0x80000000
|
||||
#define PTR_MAX 0x7fffffff
|
||||
#define UPTR_MAX 0xffffffff
|
||||
|
||||
#endif /* __ARCH_AVR_INCLUDE_LIMITS_H */
|
||||
|
||||
@@ -0,0 +1,95 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/include/types.h
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/* This file should never be included directed but, rather, only indirectly
|
||||
* through stdint.h
|
||||
*/
|
||||
|
||||
#ifndef __ARCH_AVR_INCLUDE_TYPES_H
|
||||
#define __ARCH_AVR_INCLUDE_TYPES_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Type Declarations
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
/* These are the sizes of the standard integer types. NOTE that these type
|
||||
* names have a leading underscore character. This file will be included
|
||||
* (indirectly) by include/stdint.h and typedef'ed to the final name without
|
||||
* the underscore character. This roundabout way of doings things allows
|
||||
* the stdint.h to be removed from the include/ directory in the event that
|
||||
* the user prefers to use the definitions provided by their toolchain header
|
||||
* files
|
||||
*/
|
||||
|
||||
typedef char _int8_t;
|
||||
typedef unsigned char _uint8_t;
|
||||
|
||||
typedef short _int16_t;
|
||||
typedef unsigned short _uint16_t;
|
||||
|
||||
typedef int _int32_t;
|
||||
typedef unsigned int _uint32_t;
|
||||
|
||||
typedef long long _int64_t;
|
||||
typedef unsigned long long _uint64_t;
|
||||
#define __INT64_DEFINED
|
||||
|
||||
/* A pointer is 4 bytes */
|
||||
|
||||
typedef int _intptr_t;
|
||||
typedef unsigned int _uintptr_t;
|
||||
|
||||
/* This is the size of the interrupt state save returned by irqsave(). */
|
||||
|
||||
typedef unsigned int irqstate_t;
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
#endif /* __ARCH_AVR_INCLUDE_TYPES_H */
|
||||
|
||||
@@ -0,0 +1,144 @@
|
||||
############################################################################
|
||||
# arch/avr/src/Makefile
|
||||
#
|
||||
# Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
# Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
#
|
||||
# Redistribution and use in source and binary forms, with or without
|
||||
# modification, are permitted provided that the following conditions
|
||||
# are met:
|
||||
#
|
||||
# 1. Redistributions of source code must retain the above copyright
|
||||
# notice, this list of conditions and the following disclaimer.
|
||||
# 2. Redistributions in binary form must reproduce the above copyright
|
||||
# notice, this list of conditions and the following disclaimer in
|
||||
# the documentation and/or other materials provided with the
|
||||
# distribution.
|
||||
# 3. Neither the name NuttX nor the names of its contributors may be
|
||||
# used to endorse or promote products derived from this software
|
||||
# without specific prior written permission.
|
||||
#
|
||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
# POSSIBILITY OF SUCH DAMAGE.
|
||||
#
|
||||
############################################################################
|
||||
|
||||
-include $(TOPDIR)/Make.defs
|
||||
-include chip/Make.defs
|
||||
|
||||
ARCH_SRCDIR = $(TOPDIR)/arch/$(CONFIG_ARCH)/src
|
||||
ifeq ($(CONFIG_ARCH_AVR32),y)
|
||||
ARCH_SUBDIR = avr32
|
||||
endif
|
||||
|
||||
ifeq ($(WINTOOL),y)
|
||||
NUTTX = "${shell cygpath -w $(TOPDIR)/nuttx}"
|
||||
CFLAGS += -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}" \
|
||||
-I "${shell cygpath -w $(ARCH_SRCDIR)/common}" \
|
||||
-I "${shell cygpath -w $(ARCH_SRCDIR)/$(ARCH_SUBDIR)}" \
|
||||
-I "${shell cygpath -w $(TOPDIR)/sched}"
|
||||
else
|
||||
NUTTX = $(TOPDIR)/nuttx
|
||||
CFLAGS += -I$(ARCH_SRCDIR)/chip -I$(ARCH_SRCDIR)/common \
|
||||
-I$(ARCH_SRCDIR)/$(ARCH_SUBDIR) -I$(TOPDIR)/sched
|
||||
endif
|
||||
|
||||
HEAD_AOBJ = $(HEAD_ASRC:.S=$(OBJEXT))
|
||||
|
||||
ASRCS = $(CHIP_ASRCS) $(CMN_ASRCS)
|
||||
AOBJS = $(ASRCS:.S=$(OBJEXT))
|
||||
|
||||
CSRCS = $(CHIP_CSRCS) $(CMN_CSRCS)
|
||||
COBJS = $(CSRCS:.c=$(OBJEXT))
|
||||
|
||||
SRCS = $(ASRCS) $(CSRCS)
|
||||
OBJS = $(AOBJS) $(COBJS)
|
||||
|
||||
LDFLAGS = $(ARCHSCRIPT)
|
||||
EXTRA_LIBS =
|
||||
|
||||
LINKLIBS =
|
||||
ifeq ($(WINTOOL),y)
|
||||
LIBPATHS = ${shell for path in $(LINKLIBS); do dir=`dirname $(TOPDIR)/$$path`;echo "-L\"`cygpath -w $$dir`\"";done}
|
||||
LIBPATHS += -L"${shell cygpath -w $(BOARDDIR)}"
|
||||
else
|
||||
LIBPATHS = $(addprefix -L$(TOPDIR)/,$(dir $(LINKLIBS)))
|
||||
LIBPATHS += -L"$(BOARDDIR)"
|
||||
endif
|
||||
LDLIBS = $(patsubst lib%,-l%,$(basename $(notdir $(LINKLIBS))))
|
||||
|
||||
BOARDDIR = $(TOPDIR)/arch/$(CONFIG_ARCH)/src/board
|
||||
|
||||
LIBGCC = "${shell $(CC) -print-libgcc-file-name}"
|
||||
|
||||
VPATH = chip:common:$(ARCH_SUBDIR)
|
||||
|
||||
all: $(HEAD_OBJ) libarch$(LIBEXT)
|
||||
|
||||
$(AOBJS) $(HEAD_AOBJ): %$(OBJEXT): %.S
|
||||
$(call ASSEMBLE, $<, $@)
|
||||
|
||||
$(COBJS): %$(OBJEXT): %.c
|
||||
$(call COMPILE, $<, $@)
|
||||
|
||||
libarch$(LIBEXT): $(OBJS)
|
||||
@( for obj in $(OBJS) ; do \
|
||||
$(call ARCHIVE, $@, $${obj}); \
|
||||
done ; )
|
||||
|
||||
board/libboard$(LIBEXT):
|
||||
@$(MAKE) -C board TOPDIR="$(TOPDIR)" libboard$(LIBEXT)
|
||||
|
||||
nuttx: $(HEAD_AOBJ) board/libboard$(LIBEXT)
|
||||
@echo "LD: nuttx"
|
||||
@$(LD) --entry=__start $(LDFLAGS) $(LIBPATHS) -o $(NUTTX)$(EXEEXT) $(HEAD_AOBJ) $(EXTRA_OBJS) \
|
||||
--start-group $(LDLIBS) -lboard --end-group $(EXTRA_LIBS) $(LIBGCC)
|
||||
ifeq ($(CONFIG_BOOT_RUNFROMFLASH),y)
|
||||
@export flashloc=`$(OBJDUMP) --all-headers $(NUTTX)$(EXEEXT) | grep _eronly | cut -d' ' -f1`; \
|
||||
$(OBJCOPY) $(OBJCOPYARGS) --adjust-section-vma=.data=0x$$flashloc $(NUTTX)$(EXEEXT) $(NUTTX).flashimage
|
||||
@mv $(NUTTX).flashimage $(NUTTX)$(EXEEXT)
|
||||
endif
|
||||
@$(NM) $(NUTTX)$(EXEEXT) | \
|
||||
grep -v '\(compiled\)\|\(\$(OBJEXT)$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
|
||||
sort > $(TOPDIR)/System.map
|
||||
@export vflashstart=`$(OBJDUMP) --all-headers $(NUTTX)$(EXEEXT) | grep _vflashstart | cut -d' ' -f1`; \
|
||||
if [ ! -z "$$vflashstart" ]; then \
|
||||
$(OBJCOPY) $(OBJCOPYARGS) --adjust-section-vma=.vector=0x$$vflashstart $(NUTTX)$(EXEEXT) $(NUTTX).flashimage; \
|
||||
mv $(NUTTX).flashimage $(NUTTX)$(EXEEXT); \
|
||||
fi
|
||||
|
||||
.depend: Makefile chip/Make.defs $(SRCS)
|
||||
@if [ -e board/Makefile ]; then \
|
||||
$(MAKE) -C board TOPDIR="$(TOPDIR)" depend ; \
|
||||
fi
|
||||
@$(MKDEP) --dep-path chip --dep-path common --dep-path $(ARCH_SUBDIR) \
|
||||
$(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
|
||||
@touch $@
|
||||
|
||||
depend: .depend
|
||||
|
||||
clean:
|
||||
@if [ -e board/Makefile ]; then \
|
||||
$(MAKE) -C board TOPDIR="$(TOPDIR)" clean ; \
|
||||
fi
|
||||
@rm -f libarch$(LIBEXT) *~ .*.swp
|
||||
$(call CLEAN)
|
||||
|
||||
distclean: clean
|
||||
@if [ -e board/Makefile ]; then \
|
||||
$(MAKE) -C board TOPDIR="$(TOPDIR)" distclean ; \
|
||||
fi
|
||||
@rm -f Make.dep .depend
|
||||
|
||||
-include Make.dep
|
||||
|
||||
Executable
+57
@@ -0,0 +1,57 @@
|
||||
############################################################################
|
||||
# arch/avr/src/at91uc3/Make.defs
|
||||
#
|
||||
# Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
# Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
#
|
||||
# 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.
|
||||
#
|
||||
############################################################################
|
||||
|
||||
# The start-up, "head", file
|
||||
|
||||
HEAD_ASRC =
|
||||
|
||||
# Common AVR/AVR32 files
|
||||
|
||||
CMN_ASRCS =
|
||||
CMN_CSRCS = up_assert.c up_blocktask.c up_copystate.c up_createstack.c \
|
||||
up_mdelay.c up_udelay.c up_exit.c up_idle.c up_initialize.c \
|
||||
up_initialstate.c up_interruptcontext.c up_modifyreg8.c \
|
||||
up_modifyreg16.c up_modifyreg32.c up_releasepending.c \
|
||||
up_releasestack.c up_reprioritizertr.c up_schedulesigaction.c \
|
||||
up_sigdeliver.c up_unblocktask.c up_usestack.c up_doirq.c
|
||||
|
||||
# Required AT91UC3 files
|
||||
|
||||
CHIP_ASRCS =
|
||||
CHIP_CSRCS =
|
||||
|
||||
# Configuration-dependent AT91UC3 files
|
||||
|
||||
|
||||
Executable
+62
@@ -0,0 +1,62 @@
|
||||
/************************************************************************************
|
||||
* arch/avr/src/at91uc3/at91uc3_memorymap.h
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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_AVR_SRC_AT91UC3_AT91UC3_MEMORYMAP_H
|
||||
#define __ARCH_AVR_SRC_AT91UC3_AT91UC3_MEMORYMAP_H
|
||||
|
||||
/************************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
/************************************************************************************
|
||||
* Pre-processor Definitions
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Public Types
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Public Data
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************************/
|
||||
|
||||
#endif /* __ARCH_AVR_SRC_AT91UC3_AT91UC3_MEMORYMAP_H */
|
||||
|
||||
Executable
+75
@@ -0,0 +1,75 @@
|
||||
/************************************************************************************
|
||||
* arch/avr/src/at91uc3/chip.h
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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_AVR_SRC_AT91UC3_CHIP_H
|
||||
#define __ARCH_AVR_SRC_AT91UC3_CHIP_H
|
||||
|
||||
/************************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
/************************************************************************************
|
||||
* Pre-processor Definitions
|
||||
************************************************************************************/
|
||||
|
||||
/* Get customizations for each supported chip */
|
||||
|
||||
#if 0
|
||||
#else
|
||||
# error "Unsupported AVR32 chip"
|
||||
#endif
|
||||
|
||||
/* Include only the memory map. Other chip hardware files should then include this
|
||||
* file for the proper setup
|
||||
*/
|
||||
|
||||
#include "atuc3_memorymap.h"
|
||||
|
||||
/************************************************************************************
|
||||
* Public Types
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Public Data
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************************/
|
||||
|
||||
#endif /* __ARCH_AVR_SRC_AT91UC3_CHIP_H */
|
||||
|
||||
@@ -0,0 +1,319 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/avr32/up_assert.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <stdlib.h>
|
||||
#include <assert.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/irq.h>
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
#include "os_internal.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* Output debug info if stack dump is selected -- even if
|
||||
* debug is not selected.
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_ARCH_STACKDUMP
|
||||
# undef lldbg
|
||||
# define lldbg lib_lowprintf
|
||||
#endif
|
||||
|
||||
/* The following is just intended to keep some ugliness out of the mainline
|
||||
* code. We are going to print the task name if:
|
||||
*
|
||||
* CONFIG_TASK_NAME_SIZE > 0 && <-- The task has a name
|
||||
* (defined(CONFIG_DEBUG) || <-- And the debug is enabled (lldbg used)
|
||||
* defined(CONFIG_ARCH_STACKDUMP) <-- Or lib_lowprintf() is used
|
||||
*/
|
||||
|
||||
#undef CONFIG_PRINT_TASKNAME
|
||||
#if CONFIG_TASK_NAME_SIZE > 0 && (defined(CONFIG_DEBUG) || defined(CONFIG_ARCH_STACKDUMP))
|
||||
# define CONFIG_PRINT_TASKNAME 1
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_getsp
|
||||
****************************************************************************/
|
||||
|
||||
/* I don't know if the builtin to get SP is enabled */
|
||||
|
||||
static inline uint32_t up_getsp(void)
|
||||
{
|
||||
# warning "Not implemented"
|
||||
return 0;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_stackdump
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ARCH_STACKDUMP
|
||||
static void up_stackdump(uint32_t sp, uint32_t stack_base)
|
||||
{
|
||||
uint32_t stack ;
|
||||
|
||||
for (stack = sp & ~0x1f; stack < stack_base; stack += 32)
|
||||
{
|
||||
uint32_t *ptr = (uint32_t*)stack;
|
||||
lldbg("%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
|
||||
stack, ptr[0], ptr[1], ptr[2], ptr[3],
|
||||
ptr[4], ptr[5], ptr[6], ptr[7]);
|
||||
}
|
||||
}
|
||||
#else
|
||||
# define up_stackdump()
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_registerdump
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ARCH_STACKDUMP
|
||||
static inline void up_registerdump(void)
|
||||
{
|
||||
/* Are user registers available from interrupt processing? */
|
||||
|
||||
if (current_regs)
|
||||
{
|
||||
/* Yes.. dump the interrupt registers */
|
||||
|
||||
# warning "Not implemented"
|
||||
}
|
||||
}
|
||||
#else
|
||||
# define up_registerdump()
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_dumpstate
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ARCH_STACKDUMP
|
||||
static void up_dumpstate(void)
|
||||
{
|
||||
_TCB *rtcb = (_TCB*)g_readytorun.head;
|
||||
uint32_t sp = up_getsp();
|
||||
uint32_t ustackbase;
|
||||
uint32_t ustacksize;
|
||||
#if CONFIG_ARCH_INTERRUPTSTACK > 3
|
||||
uint32_t istackbase;
|
||||
uint32_t istacksize;
|
||||
#endif
|
||||
|
||||
/* Get the limits on the user stack memory */
|
||||
|
||||
if (rtcb->pid == 0)
|
||||
{
|
||||
ustackbase = g_heapbase - 4;
|
||||
ustacksize = CONFIG_IDLETHREAD_STACKSIZE;
|
||||
}
|
||||
else
|
||||
{
|
||||
ustackbase = (uint32_t)rtcb->adj_stack_ptr;
|
||||
ustacksize = (uint32_t)rtcb->adj_stack_size;
|
||||
}
|
||||
|
||||
/* Get the limits on the interrupt stack memory */
|
||||
|
||||
#if CONFIG_ARCH_INTERRUPTSTACK > 3
|
||||
istackbase = (uint32_t)&g_intstackbase;
|
||||
istacksize = (CONFIG_ARCH_INTERRUPTSTACK & ~3) - 4;
|
||||
|
||||
/* Show interrupt stack info */
|
||||
|
||||
lldbg("sp: %08x\n", sp);
|
||||
lldbg("IRQ stack:\n");
|
||||
lldbg(" base: %08x\n", istackbase);
|
||||
lldbg(" size: %08x\n", istacksize);
|
||||
|
||||
/* Does the current stack pointer lie within the interrupt
|
||||
* stack?
|
||||
*/
|
||||
|
||||
if (sp <= istackbase && sp > istackbase - istacksize)
|
||||
{
|
||||
/* Yes.. dump the interrupt stack */
|
||||
|
||||
up_stackdump(sp, istackbase);
|
||||
}
|
||||
|
||||
/* Extract the user stack pointer if we are in an interrupt handler.
|
||||
* If we are not in an interrupt handler. Then sp is the user stack
|
||||
* pointer (and the above range check should have failed).
|
||||
*/
|
||||
|
||||
if (current_regs)
|
||||
{
|
||||
sp = current_regs[REG_R13];
|
||||
lldbg("sp: %08x\n", sp);
|
||||
}
|
||||
|
||||
lldbg("User stack:\n");
|
||||
lldbg(" base: %08x\n", ustackbase);
|
||||
lldbg(" size: %08x\n", ustacksize);
|
||||
|
||||
/* Dump the user stack if the stack pointer lies within the allocated user
|
||||
* stack memory.
|
||||
*/
|
||||
|
||||
if (sp <= ustackbase && sp > ustackbase - ustacksize)
|
||||
{
|
||||
up_stackdump(sp, ustackbase);
|
||||
}
|
||||
#else
|
||||
lldbg("sp: %08x\n", sp);
|
||||
lldbg("stack base: %08x\n", ustackbase);
|
||||
lldbg("stack size: %08x\n", ustacksize);
|
||||
|
||||
/* Dump the user stack if the stack pointer lies within the allocated user
|
||||
* stack memory.
|
||||
*/
|
||||
|
||||
if (sp > ustackbase || sp <= ustackbase - ustacksize)
|
||||
{
|
||||
lldbg("ERROR: Stack pointer is not within allocated stack\n");
|
||||
}
|
||||
else
|
||||
{
|
||||
up_stackdump(sp, ustackbase);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Then dump the registers (if available) */
|
||||
|
||||
up_registerdump();
|
||||
}
|
||||
#else
|
||||
# define up_dumpstate()
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: _up_assert
|
||||
****************************************************************************/
|
||||
|
||||
static void _up_assert(int errorcode) /* __attribute__ ((noreturn)) */
|
||||
{
|
||||
/* Are we in an interrupt handler or the idle task? */
|
||||
|
||||
if (current_regs || ((_TCB*)g_readytorun.head)->pid == 0)
|
||||
{
|
||||
(void)irqsave();
|
||||
for(;;)
|
||||
{
|
||||
#ifdef CONFIG_ARCH_LEDS
|
||||
up_ledon(LED_PANIC);
|
||||
up_mdelay(250);
|
||||
up_ledoff(LED_PANIC);
|
||||
up_mdelay(250);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
exit(errorcode);
|
||||
}
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_assert
|
||||
****************************************************************************/
|
||||
|
||||
void up_assert(const uint8_t *filename, int lineno)
|
||||
{
|
||||
#ifdef CONFIG_PRINT_TASKNAME
|
||||
_TCB *rtcb = (_TCB*)g_readytorun.head;
|
||||
#endif
|
||||
|
||||
up_ledon(LED_ASSERTION);
|
||||
#ifdef CONFIG_PRINT_TASKNAME
|
||||
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_dumpstate();
|
||||
_up_assert(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_assert_code
|
||||
****************************************************************************/
|
||||
|
||||
void up_assert_code(const uint8_t *filename, int lineno, int errorcode)
|
||||
{
|
||||
#ifdef CONFIG_PRINT_TASKNAME
|
||||
_TCB *rtcb = (_TCB*)g_readytorun.head;
|
||||
#endif
|
||||
|
||||
up_ledon(LED_ASSERTION);
|
||||
#ifdef CONFIG_PRINT_TASKNAME
|
||||
lldbg("Assertion failed at file:%s line: %d task: %s error code: %d\n",
|
||||
filename, lineno, rtcb->name, errorcode);
|
||||
#else
|
||||
lldbg("Assertion failed at file:%s line: %d error code: %d\n",
|
||||
filename, lineno, errorcode);
|
||||
#endif
|
||||
up_dumpstate();
|
||||
_up_assert(errorcode);
|
||||
}
|
||||
|
||||
Executable
+168
@@ -0,0 +1,168 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/avr32/up_blocktask.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 "os_internal.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_block_task
|
||||
*
|
||||
* Description:
|
||||
* The currently executing task at the head of
|
||||
* the ready to run list must be stopped. Save its context
|
||||
* and move it to the inactive list specified by task_state.
|
||||
*
|
||||
* Inputs:
|
||||
* tcb: Refers to a task in the ready-to-run list (normally
|
||||
* the task at the head of the list). It most be
|
||||
* stopped, its context saved and moved into one of the
|
||||
* waiting task lists. It it was the task at the head
|
||||
* of the ready-to-run list, then a context to the new
|
||||
* ready to run task must be performed.
|
||||
* task_state: Specifies which waiting task list should be
|
||||
* hold the blocked task TCB.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_block_task(_TCB *tcb, tstate_t task_state)
|
||||
{
|
||||
/* Verify that the context switch can be performed */
|
||||
|
||||
if ((tcb->task_state < FIRST_READY_TO_RUN_STATE) ||
|
||||
(tcb->task_state > LAST_READY_TO_RUN_STATE))
|
||||
{
|
||||
PANIC(OSERR_BADBLOCKSTATE);
|
||||
}
|
||||
else
|
||||
{
|
||||
_TCB *rtcb = (_TCB*)g_readytorun.head;
|
||||
bool switch_needed;
|
||||
|
||||
/* 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 (current_regs)
|
||||
{
|
||||
/* Yes, then we have to do things differently.
|
||||
* Just copy the current_regs into the OLD rtcb.
|
||||
*/
|
||||
|
||||
up_savestate(rtcb->xcp.regs);
|
||||
|
||||
/* Restore the exception context of the rtcb at the (new) head
|
||||
* of the g_readytorun task list.
|
||||
*/
|
||||
|
||||
rtcb = (_TCB*)g_readytorun.head;
|
||||
|
||||
/* Then switch contexts */
|
||||
|
||||
up_restorestate(rtcb->xcp.regs);
|
||||
}
|
||||
|
||||
/* No, then we will need to perform the user context switch */
|
||||
|
||||
else
|
||||
{
|
||||
/* Switch context to the context of the task at the head of the
|
||||
* ready to run list.
|
||||
*/
|
||||
|
||||
_TCB *nexttcb = (_TCB*)g_readytorun.head;
|
||||
up_switchcontext(rtcb->xcp.regs, nexttcb->xcp.regs);
|
||||
|
||||
/* up_switchcontext forces a context switch to the task at the
|
||||
* head of the ready-to-run list. It does not 'return' in the
|
||||
* normal sense. When it does return, it is because the blocked
|
||||
* task is again ready to run and has execution priority.
|
||||
*/
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,86 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/avr32/up_copystate.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 "os_internal.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_copystate
|
||||
****************************************************************************/
|
||||
|
||||
/* A little faster than most memcpy's */
|
||||
|
||||
void up_copystate(uint32_t *dest, uint32_t *src)
|
||||
{
|
||||
int i;
|
||||
|
||||
/* The state is copied from the stack to the TCB, but only a reference is
|
||||
* passed to get the state from the TCB. So the following check avoids
|
||||
* copying the TCB save area onto itself:
|
||||
*/
|
||||
|
||||
if (src != dest)
|
||||
{
|
||||
for (i = 0; i < XCPTCONTEXT_REGS; i++)
|
||||
{
|
||||
*dest++ = *src++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,119 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/avr32/up_doirq.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <assert.h>
|
||||
|
||||
#include <nuttx/irq.h>
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
#include "os_internal.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
uint32_t *up_doirq(int irq, uint32_t *regs)
|
||||
{
|
||||
up_ledon(LED_INIRQ);
|
||||
#ifdef CONFIG_SUPPRESS_INTERRUPTS
|
||||
PANIC(OSERR_ERREXCEPTION);
|
||||
#else
|
||||
/* Nested interrupts are not supported in this implementation. If you want
|
||||
* implemented nested interrupts, you would have to (1) change the way that
|
||||
* current regs is handled and (2) the design associated with
|
||||
* CONFIG_ARCH_INTERRUPTSTACK.
|
||||
*/
|
||||
|
||||
/* Current regs non-zero indicates that we are processing an interrupt;
|
||||
* current_regs is also used to manage interrupt level context switches.
|
||||
*/
|
||||
|
||||
DEBUGASSERT(current_regs == NULL);
|
||||
current_regs = regs;
|
||||
|
||||
/* Mask and acknowledge the interrupt */
|
||||
|
||||
up_maskack_irq(irq);
|
||||
|
||||
/* Deliver the IRQ */
|
||||
|
||||
irq_dispatch(irq, regs);
|
||||
|
||||
/* If a context switch occurred while processing the interrupt then
|
||||
* current_regs may have change value. If we return any value different
|
||||
* from the input regs, then the lower level will know that a context
|
||||
* switch occurred during interrupt processing.
|
||||
*/
|
||||
|
||||
regs = current_regs;
|
||||
|
||||
/* Indicate that we are no long in an interrupt handler */
|
||||
|
||||
current_regs = NULL;
|
||||
|
||||
/* Unmask the last interrupt (global interrupts are still disabled) */
|
||||
|
||||
up_enable_irq(irq);
|
||||
#endif
|
||||
up_ledoff(LED_INIRQ);
|
||||
return regs;
|
||||
}
|
||||
|
||||
@@ -0,0 +1,99 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/avr32/up_initialstate.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <string.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
#include "up_arch.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_initial_state
|
||||
*
|
||||
* Description:
|
||||
* A new thread is being started and a new TCB has been created. This
|
||||
* function is called to initialize the processor specific portions of the
|
||||
* new TCB.
|
||||
*
|
||||
* This function must setup the intial architecture registers and/or stack
|
||||
* so that execution will begin at tcb->start on the next context switch.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_initial_state(_TCB *tcb)
|
||||
{
|
||||
struct xcptcontext *xcp = &tcb->xcp;
|
||||
|
||||
/* Initialize the initial exception register context structure */
|
||||
|
||||
memset(xcp, 0, sizeof(struct xcptcontext));
|
||||
|
||||
/* Save the initial stack pointer */
|
||||
/* Save the task entry point (stripping off the thumb bit) */
|
||||
|
||||
# warning "Not implemented"
|
||||
|
||||
/* Enable or disable interrupts, based on user configuration */
|
||||
|
||||
# ifdef CONFIG_SUPPRESS_INTERRUPTS
|
||||
# warning "Not implemented"
|
||||
# endif
|
||||
}
|
||||
|
||||
Executable
+131
@@ -0,0 +1,131 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/avr32/up_releasepending.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 "os_internal.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_release_pending
|
||||
*
|
||||
* Description:
|
||||
* Release and ready-to-run tasks that have
|
||||
* collected in the pending task list. This can call a
|
||||
* context switch if a new task is placed at the head of
|
||||
* the ready to run list.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_release_pending(void)
|
||||
{
|
||||
_TCB *rtcb = (_TCB*)g_readytorun.head;
|
||||
|
||||
slldbg("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 (current_regs)
|
||||
{
|
||||
/* Yes, then we have to do things differently.
|
||||
* Just copy the current_regs into the OLD rtcb.
|
||||
*/
|
||||
|
||||
up_savestate(rtcb->xcp.regs);
|
||||
|
||||
/* Restore the exception context of the rtcb at the (new) head
|
||||
* of the g_readytorun task list.
|
||||
*/
|
||||
|
||||
rtcb = (_TCB*)g_readytorun.head;
|
||||
slldbg("New Active Task TCB=%p\n", rtcb);
|
||||
|
||||
/* Then switch contexts */
|
||||
|
||||
up_restorestate(rtcb->xcp.regs);
|
||||
}
|
||||
|
||||
/* No, then we will need to perform the user context switch */
|
||||
|
||||
else
|
||||
{
|
||||
/* Switch context to the context of the task at the head of the
|
||||
* ready to run list.
|
||||
*/
|
||||
|
||||
_TCB *nexttcb = (_TCB*)g_readytorun.head;
|
||||
up_switchcontext(rtcb->xcp.regs, nexttcb->xcp.regs);
|
||||
|
||||
/* up_switchcontext forces a context switch to the task at the
|
||||
* head of the ready-to-run list. It does not 'return' in the
|
||||
* normal sense. When it does return, it is because the blocked
|
||||
* task is again ready to run and has execution priority.
|
||||
*/
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Executable
+182
@@ -0,0 +1,182 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/avr32/up_reprioritizertr.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 "os_internal.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* 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(_TCB *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 ||
|
||||
priority < SCHED_PRIORITY_MIN ||
|
||||
priority > SCHED_PRIORITY_MAX)
|
||||
{
|
||||
PANIC(OSERR_BADREPRIORITIZESTATE);
|
||||
}
|
||||
else
|
||||
{
|
||||
_TCB *rtcb = (_TCB*)g_readytorun.head;
|
||||
bool switch_needed;
|
||||
|
||||
slldbg("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 (current_regs)
|
||||
{
|
||||
/* Yes, then we have to do things differently.
|
||||
* Just copy the current_regs into the OLD rtcb.
|
||||
*/
|
||||
|
||||
up_savestate(rtcb->xcp.regs);
|
||||
|
||||
/* Restore the exception context of the rtcb at the (new) head
|
||||
* of the g_readytorun task list.
|
||||
*/
|
||||
|
||||
rtcb = (_TCB*)g_readytorun.head;
|
||||
slldbg("New Active Task TCB=%p\n", rtcb);
|
||||
|
||||
/* Then switch contexts */
|
||||
|
||||
up_restorestate(rtcb->xcp.regs);
|
||||
}
|
||||
|
||||
/* No, then we will need to perform the user context switch */
|
||||
|
||||
else
|
||||
{
|
||||
/* Switch context to the context of the task at the head of the
|
||||
* ready to run list.
|
||||
*/
|
||||
|
||||
_TCB *nexttcb = (_TCB*)g_readytorun.head;
|
||||
up_switchcontext(rtcb->xcp.regs, nexttcb->xcp.regs);
|
||||
|
||||
/* up_switchcontext forces a context switch to the task at the
|
||||
* head of the ready-to-run list. It does not 'return' in the
|
||||
* normal sense. When it does return, it is because the blocked
|
||||
* task is again ready to run and has execution priority.
|
||||
*/
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,201 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/avr32/up_schedulesigaction.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include "psr.h"
|
||||
#include "os_internal.h"
|
||||
#include "up_internal.h"
|
||||
#include "up_arch.h"
|
||||
|
||||
#ifndef CONFIG_DISABLE_SIGNALS
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_schedule_sigaction
|
||||
*
|
||||
* Description:
|
||||
* This function is called by the OS when one or more
|
||||
* signal handling actions have been queued for execution.
|
||||
* The architecture specific code must configure things so
|
||||
* that the 'igdeliver' callback is executed on the thread
|
||||
* specified by 'tcb' as soon as possible.
|
||||
*
|
||||
* This function may be called from interrupt handling logic.
|
||||
*
|
||||
* This operation should not cause the task to be unblocked
|
||||
* nor should it cause any immediate execution of sigdeliver.
|
||||
* Typically, a few cases need to be considered:
|
||||
*
|
||||
* (1) This function may be called from an interrupt handler
|
||||
* During interrupt processing, all xcptcontext structures
|
||||
* should be valid for all tasks. That structure should
|
||||
* be modified to invoke sigdeliver() either on return
|
||||
* from (this) interrupt or on some subsequent context
|
||||
* switch to the recipient task.
|
||||
* (2) If not in an interrupt handler and the tcb is NOT
|
||||
* the currently executing task, then again just modify
|
||||
* the saved xcptcontext structure for the recipient
|
||||
* task so it will invoke sigdeliver when that task is
|
||||
* later resumed.
|
||||
* (3) If not in an interrupt handler and the tcb IS the
|
||||
* currently executing task -- just call the signal
|
||||
* handler now.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_schedule_sigaction(_TCB *tcb, sig_deliver_t sigdeliver)
|
||||
{
|
||||
/* Refuse to handle nested signal actions */
|
||||
|
||||
sdbg("tcb=0x%p sigdeliver=0x%p\n", tcb, sigdeliver);
|
||||
|
||||
if (!tcb->xcp.sigdeliver)
|
||||
{
|
||||
irqstate_t flags;
|
||||
|
||||
/* Make sure that interrupts are disabled */
|
||||
|
||||
flags = irqsave();
|
||||
|
||||
/* First, handle some special cases when the signal is
|
||||
* being delivered to the currently executing task.
|
||||
*/
|
||||
|
||||
sdbg("rtcb=0x%p current_regs=0x%p\n", g_readytorun.head, current_regs);
|
||||
|
||||
if (tcb == (_TCB*)g_readytorun.head)
|
||||
{
|
||||
/* CASE 1: We are not in an interrupt handler and
|
||||
* a task is signalling itself for some reason.
|
||||
*/
|
||||
|
||||
if (!current_regs)
|
||||
{
|
||||
/* In this case just deliver the signal now. */
|
||||
|
||||
sigdeliver(tcb);
|
||||
}
|
||||
|
||||
/* CASE 2: We are in an interrupt handler AND the
|
||||
* interrupted task is the same as the one that
|
||||
* must receive the signal, then we will have to modify
|
||||
* the return state as well as the state in the TCB.
|
||||
*
|
||||
* Hmmm... there looks like a latent bug here: The following
|
||||
* logic would fail in the strange case where we are in an
|
||||
* interrupt handler, the thread is signalling itself, but
|
||||
* a context switch to another task has occurred so that
|
||||
* current_regs does not refer to the thread at g_readytorun.head!
|
||||
*/
|
||||
|
||||
else
|
||||
{
|
||||
/* Save registers that must be protected while the signal handler
|
||||
* runs. These will be restored by the signal trampoline after
|
||||
* the signal(s) have been delivered.
|
||||
*/
|
||||
|
||||
tcb->xcp.sigdeliver = sigdeliver;
|
||||
#warning "Not implemented"
|
||||
|
||||
/* Then set up to vector to the trampoline with interrupts
|
||||
* disabled
|
||||
*/
|
||||
|
||||
#warning "Not implemented"
|
||||
|
||||
/* And make sure that the saved context in the TCB
|
||||
* is the same as the interrupt return context.
|
||||
*/
|
||||
|
||||
up_savestate(tcb->xcp.regs);
|
||||
}
|
||||
}
|
||||
|
||||
/* Otherwise, we are (1) signaling a task is not running
|
||||
* from an interrupt handler or (2) we are not in an
|
||||
* interrupt handler and the running task is signalling
|
||||
* some non-running task.
|
||||
*/
|
||||
|
||||
else
|
||||
{
|
||||
/* Save registers that must be protected while the signal handler
|
||||
* runs. These will be restored by the signal trampoline after
|
||||
* the signals have been delivered.
|
||||
*/
|
||||
|
||||
tcb->xcp.sigdeliver = sigdeliver;
|
||||
#warning "Not implemented"
|
||||
|
||||
/* Then set up to vector to the trampoline with interrupts
|
||||
* disabled
|
||||
*/
|
||||
|
||||
#warning "Not implemented"
|
||||
}
|
||||
|
||||
irqrestore(flags);
|
||||
}
|
||||
}
|
||||
|
||||
#endif /* !CONFIG_DISABLE_SIGNALS */
|
||||
|
||||
@@ -0,0 +1,139 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/avr32/up_sigdeliver.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <debug.h>
|
||||
|
||||
#include <nuttx/irq.h>
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "os_internal.h"
|
||||
#include "up_internal.h"
|
||||
#include "up_arch.h"
|
||||
|
||||
#ifndef CONFIG_DISABLE_SIGNALS
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_sigdeliver
|
||||
*
|
||||
* Description:
|
||||
* This is the a signal handling trampoline. When a signal action was
|
||||
* posted. The task context was mucked with and forced to branch to this
|
||||
* location with interrupts disabled.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_sigdeliver(void)
|
||||
{
|
||||
_TCB *rtcb = (_TCB*)g_readytorun.head;
|
||||
uint32_t regs[XCPTCONTEXT_REGS];
|
||||
sig_deliver_t sigdeliver;
|
||||
|
||||
/* Save the errno. This must be preserved throughout the signal handling
|
||||
* so that the user code final gets the correct errno value (probably EINTR).
|
||||
*/
|
||||
|
||||
int saved_errno = rtcb->pterrno;
|
||||
|
||||
up_ledon(LED_SIGNAL);
|
||||
|
||||
sdbg("rtcb=%p sigdeliver=%p sigpendactionq.head=%p\n",
|
||||
rtcb, rtcb->xcp.sigdeliver, rtcb->sigpendactionq.head);
|
||||
ASSERT(rtcb->xcp.sigdeliver != NULL);
|
||||
|
||||
/* Save the real return state on the stack. */
|
||||
|
||||
up_copystate(regs, rtcb->xcp.regs);
|
||||
#warning "Not Implemented"
|
||||
|
||||
/* Get a local copy of the sigdeliver function pointer. We do this so tha
|
||||
* we can nullify the sigdeliver function point in the TCB and accept more
|
||||
* signal deliveries while processing the current pending signals.
|
||||
*/
|
||||
|
||||
sigdeliver = rtcb->xcp.sigdeliver;
|
||||
rtcb->xcp.sigdeliver = NULL;
|
||||
|
||||
/* Then restore the task interrupt state */
|
||||
|
||||
irqrestore((uint16_t)regs[REG_PRIMASK]);
|
||||
|
||||
/* Deliver the signals */
|
||||
|
||||
sigdeliver(rtcb);
|
||||
|
||||
/* Output any debug messaged BEFORE restoreing errno
|
||||
* (becuase they may alter errno), then restore the
|
||||
* original errno that is needed by the user logic
|
||||
* (it is probably EINTR).
|
||||
*/
|
||||
|
||||
sdbg("Resuming\n");
|
||||
rtcb->pterrno = saved_errno;
|
||||
|
||||
/* Then restore the correct state for this thread of
|
||||
* execution.
|
||||
*/
|
||||
|
||||
up_ledoff(LED_SIGNAL);
|
||||
up_fullcontextrestore(regs);
|
||||
}
|
||||
|
||||
#endif /* !CONFIG_DISABLE_SIGNALS */
|
||||
|
||||
Executable
+158
@@ -0,0 +1,158 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/avr32/up_unblocktask.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 "os_internal.h"
|
||||
#include "clock_internal.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_unblock_task
|
||||
*
|
||||
* Description:
|
||||
* A task is currently in an inactive task list
|
||||
* but has been prepped to execute. Move the TCB to the
|
||||
* ready-to-run list, restore its context, and start execution.
|
||||
*
|
||||
* Inputs:
|
||||
* tcb: Refers to the tcb to be unblocked. This tcb is
|
||||
* in one of the waiting tasks lists. It must be moved to
|
||||
* the ready-to-run list and, if it is the highest priority
|
||||
* ready to run taks, executed.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_unblock_task(_TCB *tcb)
|
||||
{
|
||||
/* Verify that the context switch can be performed */
|
||||
|
||||
if ((tcb->task_state < FIRST_BLOCKED_STATE) ||
|
||||
(tcb->task_state > LAST_BLOCKED_STATE))
|
||||
{
|
||||
PANIC(OSERR_BADUNBLOCKSTATE);
|
||||
}
|
||||
else
|
||||
{
|
||||
_TCB *rtcb = (_TCB*)g_readytorun.head;
|
||||
|
||||
/* 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 = CONFIG_RR_INTERVAL / MSEC_PER_TICK;
|
||||
#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 (current_regs)
|
||||
{
|
||||
/* Yes, then we have to do things differently.
|
||||
* Just copy the current_regs into the OLD rtcb.
|
||||
*/
|
||||
|
||||
up_savestate(rtcb->xcp.regs);
|
||||
|
||||
/* Restore the exception context of the rtcb at the (new) head
|
||||
* of the g_readytorun task list.
|
||||
*/
|
||||
|
||||
rtcb = (_TCB*)g_readytorun.head;
|
||||
|
||||
/* Then switch contexts */
|
||||
|
||||
up_restorestate(rtcb->xcp.regs);
|
||||
}
|
||||
|
||||
/* No, then we will need to perform the user context switch */
|
||||
|
||||
else
|
||||
{
|
||||
/* Switch context to the context of the task at the head of the
|
||||
* ready to run list.
|
||||
*/
|
||||
|
||||
_TCB *nexttcb = (_TCB*)g_readytorun.head;
|
||||
up_switchcontext(rtcb->xcp.regs, nexttcb->xcp.regs);
|
||||
|
||||
/* up_switchcontext forces a context switch to the task at the
|
||||
* head of the ready-to-run list. It does not 'return' in the
|
||||
* normal sense. When it does return, it is because the blocked
|
||||
* task is again ready to run and has execution priority.
|
||||
*/
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,83 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_allocateheap.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Private Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_allocate_heap
|
||||
*
|
||||
* Description:
|
||||
* The heap may be statically allocated by
|
||||
* defining CONFIG_HEAP_BASE and CONFIG_HEAP_SIZE. If these
|
||||
* are not defined, then this function will be called to
|
||||
* dynamically set aside the heap region.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_allocate_heap(FAR void **heap_start, size_t *heap_size)
|
||||
{
|
||||
up_ledon(LED_HEAPALLOCATE);
|
||||
*heap_start = (FAR void*)g_heapbase;
|
||||
*heap_size = CONFIG_DRAM_END - g_heapbase;
|
||||
}
|
||||
@@ -0,0 +1,90 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_arch.h
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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_AVR_SRC_COMMON_UP_ARCH_H
|
||||
#define __ARCH_AVR_SRC_COMMON_UP_ARCH_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#ifndef __ASSEMBLY__
|
||||
# include <stdint.h>
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Inline Functions
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
# define getreg8(a) (*(volatile uint8_t *)(a))
|
||||
# define putreg8(v,a) (*(volatile uint8_t *)(a) = (v))
|
||||
# define getreg16(a) (*(volatile uint16_t *)(a))
|
||||
# define putreg16(v,a) (*(volatile uint16_t *)(a) = (v))
|
||||
# define getreg32(a) (*(volatile uint32_t *)(a))
|
||||
# define putreg32(v,a) (*(volatile uint32_t *)(a) = (v))
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
#define EXTERN extern "C"
|
||||
extern "C" {
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/* Atomic modification of registers */
|
||||
|
||||
EXTERN void modifyreg8(unsigned int addr, uint8_t clearbits, uint8_t setbits);
|
||||
EXTERN void modifyreg16(unsigned int addr, uint16_t clearbits, uint16_t setbits);
|
||||
EXTERN void modifyreg32(unsigned int addr, uint32_t clearbits, uint32_t setbits);
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* __ARCH_AVR_SRC_COMMON_UP_ARCH_H */
|
||||
|
||||
@@ -0,0 +1,138 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_createstack.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <stdlib.h>
|
||||
#include <sched.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/kmalloc.h>
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Global Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_create_stack
|
||||
*
|
||||
* Description:
|
||||
* Allocate a stack for a new thread and setup
|
||||
* up stack-related information in the TCB.
|
||||
*
|
||||
* The following TCB fields must be initialized:
|
||||
* adj_stack_size: Stack size after adjustment for hardware,
|
||||
* processor, etc. This value is retained only for debug
|
||||
* purposes.
|
||||
* stack_alloc_ptr: Pointer to allocated stack
|
||||
* adj_stack_ptr: Adjusted stack_alloc_ptr for HW. The
|
||||
* initial value of the stack pointer.
|
||||
*
|
||||
* Inputs:
|
||||
* tcb: The TCB of new task
|
||||
* stack_size: The requested stack size. At least this much
|
||||
* must be allocated.
|
||||
****************************************************************************/
|
||||
|
||||
int up_create_stack(_TCB *tcb, size_t stack_size)
|
||||
{
|
||||
if (tcb->stack_alloc_ptr &&
|
||||
tcb->adj_stack_size != stack_size)
|
||||
{
|
||||
sched_free(tcb->stack_alloc_ptr);
|
||||
tcb->stack_alloc_ptr = NULL;
|
||||
}
|
||||
|
||||
if (!tcb->stack_alloc_ptr)
|
||||
{
|
||||
#ifdef CONFIG_DEBUG
|
||||
tcb->stack_alloc_ptr = (uint32_t*)zalloc(stack_size);
|
||||
#else
|
||||
tcb->stack_alloc_ptr = (uint32_t*)malloc(stack_size);
|
||||
#endif
|
||||
}
|
||||
|
||||
if (tcb->stack_alloc_ptr)
|
||||
{
|
||||
size_t top_of_stack;
|
||||
size_t size_of_stack;
|
||||
|
||||
/* The AVR32 uses a push-down stack: the stack grows
|
||||
* toward loweraddresses in memory. The stack pointer
|
||||
* register, points to the lowest, valid work address
|
||||
* (the "top" of the stack). Items on the stack are
|
||||
* referenced as positive word offsets from sp.
|
||||
*/
|
||||
|
||||
top_of_stack = (uint32_t)tcb->stack_alloc_ptr + stack_size - 4;
|
||||
|
||||
/* The AVR32 stack must be aligned at word (4 byte)
|
||||
* boundaries. If necessary top_of_stack must be rounded
|
||||
* down to the next boundary
|
||||
*/
|
||||
|
||||
top_of_stack &= ~3;
|
||||
size_of_stack = top_of_stack - (uint32_t)tcb->stack_alloc_ptr + 4;
|
||||
|
||||
/* Save the adjusted stack values in the _TCB */
|
||||
|
||||
tcb->adj_stack_ptr = (uint32_t*)top_of_stack;
|
||||
tcb->adj_stack_size = size_of_stack;
|
||||
|
||||
up_ledon(LED_STACKCREATED);
|
||||
return OK;
|
||||
}
|
||||
|
||||
return ERROR;
|
||||
}
|
||||
@@ -0,0 +1,174 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_exit.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 "os_internal.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
#ifdef CONFIG_DUMP_ON_EXIT
|
||||
#include <nuttx/fs.h>
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: _up_dumponexit
|
||||
*
|
||||
* Description:
|
||||
* Dump the state of all tasks whenever on task exits. This is debug
|
||||
* instrumentation that was added to check file-related reference counting
|
||||
* but could be useful again sometime in the future.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#if defined(CONFIG_DUMP_ON_EXIT) && defined(CONFIG_DEBUG)
|
||||
static void _up_dumponexit(FAR _TCB *tcb, FAR void *arg)
|
||||
{
|
||||
#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NFILE_STREAMS > 0
|
||||
int i;
|
||||
#endif
|
||||
|
||||
sdbg(" TCB=%p name=%s pid=%d\n", tcb, tcb->argv[0], tcb->pid);
|
||||
sdbg(" priority=%d state=%d\n", tcb->sched_priority, tcb->task_state);
|
||||
|
||||
#if CONFIG_NFILE_DESCRIPTORS > 0
|
||||
if (tcb->filelist)
|
||||
{
|
||||
sdbg(" filelist refcount=%d\n",
|
||||
tcb->filelist->fl_crefs);
|
||||
|
||||
for (i = 0; i < CONFIG_NFILE_DESCRIPTORS; i++)
|
||||
{
|
||||
struct inode *inode = tcb->filelist->fl_files[i].f_inode;
|
||||
if (inode)
|
||||
{
|
||||
sdbg(" fd=%d refcount=%d\n",
|
||||
i, inode->i_crefs);
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
#if CONFIG_NFILE_STREAMS > 0
|
||||
if (tcb->streams)
|
||||
{
|
||||
sdbg(" streamlist refcount=%d\n",
|
||||
tcb->streams->sl_crefs);
|
||||
|
||||
for (i = 0; i < CONFIG_NFILE_STREAMS; i++)
|
||||
{
|
||||
struct file_struct *filep = &tcb->streams->sl_streams[i];
|
||||
if (filep->fs_filedes >= 0)
|
||||
{
|
||||
#if CONFIG_STDIO_BUFFER_SIZE > 0
|
||||
sdbg(" fd=%d nbytes=%d\n",
|
||||
filep->fs_filedes,
|
||||
filep->fs_bufpos - filep->fs_bufstart);
|
||||
#else
|
||||
sdbg(" fd=%d\n", filep->fs_filedes);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* 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)
|
||||
{
|
||||
_TCB* tcb;
|
||||
|
||||
/* Disable interrupts. They will be restored when the next
|
||||
* task is started.
|
||||
*/
|
||||
|
||||
(void)irqsave();
|
||||
|
||||
slldbg("TCB=%p exitting\n", g_readytorun.head);
|
||||
|
||||
#if defined(CONFIG_DUMP_ON_EXIT) && defined(CONFIG_DEBUG)
|
||||
slldbg("Other tasks:\n");
|
||||
sched_foreach(_up_dumponexit, NULL);
|
||||
#endif
|
||||
|
||||
/* Destroy the task at the head of the ready to run list. */
|
||||
|
||||
(void)task_deletecurrent();
|
||||
|
||||
/* Now, perform the context switch to the new ready-to-run task at the
|
||||
* head of the list.
|
||||
*/
|
||||
|
||||
tcb = (_TCB*)g_readytorun.head;
|
||||
|
||||
/* Then switch contexts */
|
||||
|
||||
up_fullcontextrestore(tcb->xcp.regs);
|
||||
}
|
||||
|
||||
@@ -0,0 +1,87 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_idle.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* 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_SUPPRESS_INTERRUPTS) || defined(CONFIG_SUPPRESS_TIMER_INTS)
|
||||
/* If the system is idle and there are no timer interrupts,
|
||||
* then process "fake" timer interrupts. Hopefully, something
|
||||
* will wake up.
|
||||
*/
|
||||
|
||||
sched_process_timer();
|
||||
#endif
|
||||
}
|
||||
|
||||
@@ -0,0 +1,170 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_initialize.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <nuttx/fs.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_calibratedelay
|
||||
*
|
||||
* Description:
|
||||
* Delay loops are provided for short timing loops. This function, if
|
||||
* enabled, will just wait for 100 seconds. Using a stopwatch, you can
|
||||
* can then determine if the timing loops are properly calibrated.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG)
|
||||
static void up_calibratedelay(void)
|
||||
{
|
||||
int i;
|
||||
lldbg("Beginning 100s delay\n");
|
||||
for (i = 0; i < 100; i++)
|
||||
{
|
||||
up_mdelay(1000);
|
||||
}
|
||||
lldbg("End 100s delay\n");
|
||||
}
|
||||
#else
|
||||
# define up_calibratedelay()
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* 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 user
|
||||
* initialization logic has been started and before the libraries have
|
||||
* been initialized. OS services and driver services are available.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_initialize(void)
|
||||
{
|
||||
/* Initialize global variables */
|
||||
|
||||
current_regs = NULL;
|
||||
|
||||
/* Calibrate the timing loop */
|
||||
|
||||
up_calibratedelay();
|
||||
|
||||
/* Add any extra memory fragments to the memory manager */
|
||||
|
||||
up_addregion();
|
||||
|
||||
/* Initialize the interrupt subsystem */
|
||||
|
||||
up_irqinitialize();
|
||||
|
||||
/* Initialize the DMA subsystem if the weak function stm32_dmainitialize has been
|
||||
* brought into the build
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_ARCH_DMA
|
||||
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
|
||||
if (up_dmainitialize)
|
||||
#endif
|
||||
{
|
||||
up_dmainitialize();
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Initialize the system timer interrupt */
|
||||
|
||||
#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS)
|
||||
up_timerinit();
|
||||
#endif
|
||||
|
||||
/* Register devices */
|
||||
|
||||
#if CONFIG_NFILE_DESCRIPTORS > 0
|
||||
devnull_register(); /* Standard /dev/null */
|
||||
#endif
|
||||
|
||||
/* Initialize the serial device driver */
|
||||
|
||||
#ifdef CONFIG_USE_SERIALDRIVER
|
||||
up_serialinit();
|
||||
#elif defined(CONFIG_DEV_LOWCONSOLE)
|
||||
lowconsole_init();
|
||||
#endif
|
||||
|
||||
/* Initialize the netwok */
|
||||
|
||||
up_netinitialize();
|
||||
|
||||
/* Initialize USB */
|
||||
|
||||
up_usbinitialize();
|
||||
|
||||
up_ledon(LED_IRQSENABLED);
|
||||
}
|
||||
|
||||
@@ -0,0 +1,245 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_internal.h
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 __UP_INTERNAL_H
|
||||
#define __UP_INTERNAL_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
# include <stdint.h>
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* Bring-up debug configurations. These are here (vs defconfig)
|
||||
* because these should only be controlled during low level
|
||||
* board bring-up and not part of normal platform configuration.
|
||||
*/
|
||||
|
||||
#undef CONFIG_SUPPRESS_INTERRUPTS /* DEFINED: Do not enable interrupts */
|
||||
#undef CONFIG_SUPPRESS_TIMER_INTS /* DEFINED: No timer */
|
||||
#undef CONFIG_SUPPRESS_SERIAL_INTS /* DEFINED: Console will poll */
|
||||
#undef CONFIG_SUPPRESS_UART_CONFIG /* DEFINED: Do not reconfig UART */
|
||||
#undef CONFIG_DUMP_ON_EXIT /* DEFINED: Dump task state on exit */
|
||||
|
||||
/* Determine which (if any) console driver to use */
|
||||
|
||||
#if CONFIG_NFILE_DESCRIPTORS == 0 || defined(CONFIG_DEV_LOWCONSOLE)
|
||||
# undef CONFIG_USE_SERIALDRIVER
|
||||
# undef CONFIG_USE_EARLYSERIALINIT
|
||||
#elif defined(CONFIG_DEV_CONSOLE) && CONFIG_NFILE_DESCRIPTORS > 0
|
||||
# define CONFIG_USE_SERIALDRIVER 1
|
||||
# define CONFIG_USE_EARLYSERIALINIT 1
|
||||
#endif
|
||||
|
||||
/* Check if an interrupt stack size is configured */
|
||||
|
||||
#ifndef CONFIG_ARCH_INTERRUPTSTACK
|
||||
# define CONFIG_ARCH_INTERRUPTSTACK 0
|
||||
#endif
|
||||
|
||||
/* Macros to handle saving and restore interrupt state. The state is copied
|
||||
* from the stack to the TCB, but only a referenced is passed to get the
|
||||
* state from the TCB.
|
||||
*/
|
||||
|
||||
#define up_savestate(regs) up_copystate(regs, current_regs)
|
||||
#define up_restorestate(regs) (current_regs = regs)
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
typedef void (*up_vector_t)(void);
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Variables
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
/* This holds a references to the current interrupt level
|
||||
* register storage structure. If is non-NULL only during
|
||||
* interrupt processing.
|
||||
*/
|
||||
|
||||
extern uint32_t *current_regs;
|
||||
|
||||
/* This is the beginning of heap as provided from up_head.S.
|
||||
* This is the first address in DRAM after the loaded
|
||||
* program+bss+idle stack. The end of the heap is
|
||||
* CONFIG_DRAM_END
|
||||
*/
|
||||
|
||||
extern uint32_t g_heapbase;
|
||||
|
||||
/* Address of the saved user stack pointer */
|
||||
|
||||
#if CONFIG_ARCH_INTERRUPTSTACK > 3
|
||||
extern void g_intstackbase;
|
||||
#endif
|
||||
|
||||
/* These 'addresses' of these values are setup by the linker script. They are
|
||||
* not actual uint32_t storage locations! They are only used meaningfully in the
|
||||
* following way:
|
||||
*
|
||||
* - The linker script defines, for example, the symbol_sdata.
|
||||
* - The declareion extern uint32_t _sdata; makes C happy. C will believe
|
||||
* that the value _sdata is the address of a uint32_t variable _data (it is
|
||||
* not!).
|
||||
* - We can recoved the linker value then by simply taking the address of
|
||||
* of _data. like: uint32_t *pdata = &_sdata;
|
||||
*/
|
||||
|
||||
extern uint32_t _stext; /* Start of .text */
|
||||
extern uint32_t _etext; /* End_1 of .text + .rodata */
|
||||
extern const uint32_t _eronly; /* End+1 of read only section (.text + .rodata) */
|
||||
extern uint32_t _sdata; /* Start of .data */
|
||||
extern uint32_t _edata; /* End+1 of .data */
|
||||
extern uint32_t _sbss; /* Start of .bss */
|
||||
extern uint32_t _ebss; /* End+1 of .bss */
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Inline Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
/* Defined in files with the same name as the function */
|
||||
|
||||
extern void up_boot(void);
|
||||
extern void up_copystate(uint32_t *dest, uint32_t *src);
|
||||
extern void up_decodeirq(uint32_t *regs);
|
||||
extern void up_irqinitialize(void);
|
||||
#ifdef CONFIG_ARCH_DMA
|
||||
extern void weak_function up_dmainitialize(void);
|
||||
#endif
|
||||
extern int up_saveusercontext(uint32_t *saveregs);
|
||||
extern void up_fullcontextrestore(uint32_t *restoreregs) __attribute__ ((noreturn));
|
||||
extern void up_switchcontext(uint32_t *saveregs, uint32_t *restoreregs);
|
||||
extern void up_sigdeliver(void);
|
||||
extern int up_timerisr(int irq, uint32_t *regs);
|
||||
extern void up_lowputc(char ch);
|
||||
extern void up_puts(const char *str);
|
||||
extern void up_lowputs(const char *str);
|
||||
extern uint32_t *up_doirq(int irq, uint32_t *regs);
|
||||
extern int up_svcall(int irq, FAR void *context);
|
||||
extern int up_hardfault(int irq, FAR void *context);
|
||||
#ifdef CONFIG_PAGING
|
||||
extern void up_pginitialize(void);
|
||||
extern uint32_t *up_va2pte(uintptr_t vaddr);
|
||||
#else /* CONFIG_PAGING */
|
||||
# define up_pginitialize()
|
||||
#endif /* CONFIG_PAGING */
|
||||
|
||||
/* Defined in up_allocateheap.c */
|
||||
|
||||
#if CONFIG_MM_REGIONS > 1
|
||||
void up_addregion(void);
|
||||
#else
|
||||
# define up_addregion()
|
||||
#endif
|
||||
|
||||
/* Defined in up_serial.c */
|
||||
|
||||
#if CONFIG_NFILE_DESCRIPTORS > 0
|
||||
extern void up_earlyserialinit(void);
|
||||
extern void up_serialinit(void);
|
||||
#else
|
||||
# define up_earlyserialinit()
|
||||
# define up_serialinit()
|
||||
#endif
|
||||
|
||||
/* Defined in drivers/lowconsole.c */
|
||||
|
||||
#ifdef CONFIG_DEV_LOWCONSOLE
|
||||
extern void lowconsole_init(void);
|
||||
#else
|
||||
# define lowconsole_init()
|
||||
#endif
|
||||
|
||||
/* Defined in up_timerisr.c */
|
||||
|
||||
extern void up_timerinit(void);
|
||||
|
||||
/* Defined in up_irq.c */
|
||||
|
||||
extern void up_maskack_irq(int irq);
|
||||
|
||||
/* Defined in board/up_leds.c */
|
||||
|
||||
#ifdef CONFIG_ARCH_LEDS
|
||||
extern void up_ledinit(void);
|
||||
extern void up_ledon(int led);
|
||||
extern void up_ledoff(int led);
|
||||
#else
|
||||
# define up_ledinit()
|
||||
# define up_ledon(led)
|
||||
# define up_ledoff(led)
|
||||
#endif
|
||||
|
||||
/* Defined in board/up_network.c */
|
||||
|
||||
#ifdef CONFIG_NET
|
||||
extern void up_netinitialize(void);
|
||||
#else
|
||||
# define up_netinitialize()
|
||||
#endif
|
||||
|
||||
/* Defined in board/up_ethernet.c */
|
||||
|
||||
#ifdef CONFIG_USBDEV
|
||||
extern void up_usbinitialize(void);
|
||||
extern void up_usbuninitialize(void);
|
||||
#else
|
||||
# define up_usbinitialize()
|
||||
# define up_usbuninitialize()
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
|
||||
#endif /* __UP_INTERNAL_H */
|
||||
|
||||
@@ -0,0 +1,70 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_interruptcontext.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 current_regs != NULL;
|
||||
}
|
||||
@@ -0,0 +1,75 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_lowputs.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_lowputs
|
||||
*
|
||||
* Description:
|
||||
* This is a low-level helper function used to support debug.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_lowputs(const char *str)
|
||||
{
|
||||
while(*str)
|
||||
{
|
||||
up_lowputc(*str++);
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,91 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_mdelay.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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>
|
||||
|
||||
/****************************************************************************
|
||||
* Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Variables
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_mdelay
|
||||
*
|
||||
* Description:
|
||||
* Delay inline for the requested number of milliseconds.
|
||||
* *** NOT multi-tasking friendly ***
|
||||
*
|
||||
* ASSUMPTIONS:
|
||||
* The setting CONFIG_BOARD_LOOPSPERMSEC has been calibrated
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_mdelay(unsigned int milliseconds)
|
||||
{
|
||||
volatile int i;
|
||||
volatile int j;
|
||||
|
||||
for (i = 0; i < milliseconds; i++)
|
||||
{
|
||||
for (j = 0; j < CONFIG_BOARD_LOOPSPERMSEC; j++)
|
||||
{
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,86 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_modifyreg16.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <arch/irq.h>
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: modifyreg16
|
||||
*
|
||||
* Description:
|
||||
* Atomically modify the specified bits in a memory mapped register
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void modifyreg16(unsigned int addr, uint16_t clearbits, uint16_t setbits)
|
||||
{
|
||||
irqstate_t flags;
|
||||
uint16_t regval;
|
||||
|
||||
flags = irqsave();
|
||||
regval = getreg16(addr);
|
||||
regval &= ~clearbits;
|
||||
regval |= setbits;
|
||||
putreg16(regval, addr);
|
||||
irqrestore(flags);
|
||||
}
|
||||
|
||||
@@ -0,0 +1,86 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_modifyreg32.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <arch/irq.h>
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: modifyreg32
|
||||
*
|
||||
* Description:
|
||||
* Atomically modify the specified bits in a memory mapped register
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void modifyreg32(unsigned int addr, uint32_t clearbits, uint32_t setbits)
|
||||
{
|
||||
irqstate_t flags;
|
||||
uint32_t regval;
|
||||
|
||||
flags = irqsave();
|
||||
regval = getreg32(addr);
|
||||
regval &= ~clearbits;
|
||||
regval |= setbits;
|
||||
putreg32(regval, addr);
|
||||
irqrestore(flags);
|
||||
}
|
||||
|
||||
@@ -0,0 +1,86 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_modifyreg8.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <arch/irq.h>
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: modifyreg8
|
||||
*
|
||||
* Description:
|
||||
* Atomically modify the specified bits in a memory mapped register
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void modifyreg8(unsigned int addr, uint8_t clearbits, uint8_t setbits)
|
||||
{
|
||||
irqstate_t flags;
|
||||
uint8_t regval;
|
||||
|
||||
flags = irqsave();
|
||||
regval = getreg8(addr);
|
||||
regval &= ~clearbits;
|
||||
regval |= setbits;
|
||||
putreg8(regval, addr);
|
||||
irqrestore(flags);
|
||||
}
|
||||
|
||||
@@ -0,0 +1,76 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_puts.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_puts
|
||||
*
|
||||
* Description:
|
||||
* This is a low-level helper function used to support debug.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_puts(const char *str)
|
||||
{
|
||||
while(*str)
|
||||
{
|
||||
up_putc(*str++);
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,80 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_releasestack.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 "os_internal.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Global Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_release_stack
|
||||
*
|
||||
* Description:
|
||||
* A task has been stopped. Free all stack
|
||||
* related resources retained int the defunct TCB.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_release_stack(_TCB *dtcb)
|
||||
{
|
||||
if (dtcb->stack_alloc_ptr)
|
||||
{
|
||||
sched_free(dtcb->stack_alloc_ptr);
|
||||
dtcb->stack_alloc_ptr = NULL;
|
||||
}
|
||||
|
||||
dtcb->adj_stack_size = 0;
|
||||
}
|
||||
|
||||
@@ -0,0 +1,130 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_udelay.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <nuttx/arch.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#define CONFIG_BOARD_LOOPSPER100USEC ((CONFIG_BOARD_LOOPSPERMSEC+5)/10)
|
||||
#define CONFIG_BOARD_LOOPSPER10USEC ((CONFIG_BOARD_LOOPSPERMSEC+50)/100)
|
||||
#define CONFIG_BOARD_LOOPSPERUSEC ((CONFIG_BOARD_LOOPSPERMSEC+500)/1000)
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Variables
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_udelay
|
||||
*
|
||||
* Description:
|
||||
* Delay inline for the requested number of microseconds. NOTE: Because
|
||||
* of all of the setup, several microseconds will be lost before the actual
|
||||
* timing looop begins. Thus, the delay will always be a few microseconds
|
||||
* longer than requested.
|
||||
*
|
||||
* *** NOT multi-tasking friendly ***
|
||||
*
|
||||
* ASSUMPTIONS:
|
||||
* The setting CONFIG_BOARD_LOOPSPERMSEC has been calibrated
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_udelay(useconds_t microseconds)
|
||||
{
|
||||
volatile int i;
|
||||
|
||||
/* We'll do this a little at a time because we expect that the
|
||||
* CONFIG_BOARD_LOOPSPERUSEC is very inaccurate during to truncation in
|
||||
* the divisions of its calculation. We'll use the largest values that
|
||||
* we can in order to prevent significant error buildup in the loops.
|
||||
*/
|
||||
|
||||
while (microseconds > 1000)
|
||||
{
|
||||
for (i = 0; i < CONFIG_BOARD_LOOPSPERMSEC; i++)
|
||||
{
|
||||
}
|
||||
microseconds -= 1000;
|
||||
}
|
||||
|
||||
while (microseconds > 100)
|
||||
{
|
||||
for (i = 0; i < CONFIG_BOARD_LOOPSPER100USEC; i++)
|
||||
{
|
||||
}
|
||||
microseconds -= 100;
|
||||
}
|
||||
|
||||
while (microseconds > 10)
|
||||
{
|
||||
for (i = 0; i < CONFIG_BOARD_LOOPSPER10USEC; i++)
|
||||
{
|
||||
}
|
||||
microseconds -= 10;
|
||||
}
|
||||
|
||||
while (microseconds > 0)
|
||||
{
|
||||
for (i = 0; i < CONFIG_BOARD_LOOPSPERUSEC; i++)
|
||||
{
|
||||
}
|
||||
microseconds--;
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,123 @@
|
||||
/****************************************************************************
|
||||
* arch/avr/src/common/up_usestack.c
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* 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 <sched.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/kmalloc.h>
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Global Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_use_stack
|
||||
*
|
||||
* Description:
|
||||
* Setup up stack-related information in the TCB
|
||||
* using pre-allocated stack memory
|
||||
*
|
||||
* The following TCB fields must be initialized:
|
||||
* adj_stack_size: Stack size after adjustment for hardware,
|
||||
* processor, etc. This value is retained only for debug
|
||||
* purposes.
|
||||
* stack_alloc_ptr: Pointer to allocated stack
|
||||
* adj_stack_ptr: Adjusted stack_alloc_ptr for HW. The
|
||||
* initial value of the stack pointer.
|
||||
*
|
||||
* Inputs:
|
||||
* tcb: The TCB of new task
|
||||
* stack_size: The allocated stack size.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int up_use_stack(_TCB *tcb, void *stack, size_t stack_size)
|
||||
{
|
||||
size_t top_of_stack;
|
||||
size_t size_of_stack;
|
||||
|
||||
if (tcb->stack_alloc_ptr)
|
||||
{
|
||||
sched_free(tcb->stack_alloc_ptr);
|
||||
}
|
||||
|
||||
/* Save the stack allocation */
|
||||
|
||||
tcb->stack_alloc_ptr = stack;
|
||||
|
||||
/* The AVR32 uses a push-down stack: the stack grows
|
||||
* toward loweraddresses in memory. The stack pointer
|
||||
* register, points to the lowest, valid work address
|
||||
* (the "top" of the stack). Items on the stack are
|
||||
* referenced as positive word offsets from sp.
|
||||
*/
|
||||
|
||||
top_of_stack = (uint32_t)tcb->stack_alloc_ptr + stack_size - 4;
|
||||
|
||||
/* The AVR32 stack must be aligned at word (4 byte)
|
||||
* boundaries. If necessary top_of_stack must be rounded
|
||||
* down to the next boundary
|
||||
*/
|
||||
|
||||
top_of_stack &= ~3;
|
||||
size_of_stack = top_of_stack - (uint32_t)tcb->stack_alloc_ptr + 4;
|
||||
|
||||
/* Save the adjusted stack values in the _TCB */
|
||||
|
||||
tcb->adj_stack_ptr = (uint32_t*)top_of_stack;
|
||||
tcb->adj_stack_size = size_of_stack;
|
||||
|
||||
return OK;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user