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authorgdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2013-08-09 08:24:22 +0000
committergdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2013-08-09 08:24:22 +0000
commit8ca210a4af9fd039e290cfcc309adde543999c1f (patch)
tree1aa594d5e65d5ebabdd358acbe8d3a9ac29f2070 /os/ports/GCC/AVR
parentcb453a3a12464dd71856b1354d083b5b02260870 (diff)
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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/kernel_3_dev@6108 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/ports/GCC/AVR')
-rw-r--r--os/ports/GCC/AVR/chcore.c133
-rw-r--r--os/ports/GCC/AVR/chcore.h325
-rw-r--r--os/ports/GCC/AVR/chtypes.h80
-rw-r--r--os/ports/GCC/AVR/port.dox87
-rw-r--r--os/ports/GCC/AVR/port.mk6
5 files changed, 0 insertions, 631 deletions
diff --git a/os/ports/GCC/AVR/chcore.c b/os/ports/GCC/AVR/chcore.c
deleted file mode 100644
index d7a33ecad..000000000
--- a/os/ports/GCC/AVR/chcore.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
- 2011,2012,2013 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file AVR/chcore.c
- * @brief AVR architecture port code.
- *
- * @addtogroup AVR_CORE
- * @{
- */
-
-#include "ch.h"
-
-/**
- * @brief Performs a context switch between two threads.
- * @details This is the most critical code in any port, this function
- * is responsible for the context switch between 2 threads.
- * @note The implementation of this code affects <b>directly</b> the context
- * switch performance so optimize here as much as you can.
- * @note The function is declared as a weak symbol, it is possible to
- * redefine it in your application code.
- *
- * @param[in] ntp the thread to be switched in
- * @param[in] otp the thread to be switched out
- */
-#if !defined(__DOXYGEN__)
-__attribute__((naked, weak))
-#endif
-void port_switch(Thread *ntp, Thread *otp) {
-
- asm volatile ("push r2");
- asm volatile ("push r3");
- asm volatile ("push r4");
- asm volatile ("push r5");
- asm volatile ("push r6");
- asm volatile ("push r7");
- asm volatile ("push r8");
- asm volatile ("push r9");
- asm volatile ("push r10");
- asm volatile ("push r11");
- asm volatile ("push r12");
- asm volatile ("push r13");
- asm volatile ("push r14");
- asm volatile ("push r15");
- asm volatile ("push r16");
- asm volatile ("push r17");
- asm volatile ("push r28");
- asm volatile ("push r29");
-
- asm volatile ("movw r30, r22");
- asm volatile ("in r0, 0x3d");
- asm volatile ("std Z+5, r0");
- asm volatile ("in r0, 0x3e");
- asm volatile ("std Z+6, r0");
-
- asm volatile ("movw r30, r24");
- asm volatile ("ldd r0, Z+5");
- asm volatile ("out 0x3d, r0");
- asm volatile ("ldd r0, Z+6");
- asm volatile ("out 0x3e, r0");
-
- asm volatile ("pop r29");
- asm volatile ("pop r28");
- asm volatile ("pop r17");
- asm volatile ("pop r16");
- asm volatile ("pop r15");
- asm volatile ("pop r14");
- asm volatile ("pop r13");
- asm volatile ("pop r12");
- asm volatile ("pop r11");
- asm volatile ("pop r10");
- asm volatile ("pop r9");
- asm volatile ("pop r8");
- asm volatile ("pop r7");
- asm volatile ("pop r6");
- asm volatile ("pop r5");
- asm volatile ("pop r4");
- asm volatile ("pop r3");
- asm volatile ("pop r2");
- asm volatile ("ret");
-}
-
-/**
- * @brief Halts the system.
- * @details This function is invoked by the operating system when an
- * unrecoverable error is detected (for example because a programming
- * error in the application code that triggers an assertion while in
- * debug mode).
- * @note The function is declared as a weak symbol, it is possible to
- * redefine it in your application code.
- */
-#if !defined(__DOXYGEN__)
-__attribute__((weak))
-#endif
-void port_halt(void) {
-
- port_disable();
- while (TRUE) {
- }
-}
-
-/**
- * @brief Start a thread by invoking its work function.
- * @details If the work function returns @p chThdExit() is automatically
- * invoked.
- */
-void _port_thread_start(void) {
-
- chSysUnlock();
- asm volatile ("movw r24, r4");
- asm volatile ("movw r30, r2");
- asm volatile ("icall");
- asm volatile ("call chThdExit");
-}
-
-/** @} */
diff --git a/os/ports/GCC/AVR/chcore.h b/os/ports/GCC/AVR/chcore.h
deleted file mode 100644
index 203c6886f..000000000
--- a/os/ports/GCC/AVR/chcore.h
+++ /dev/null
@@ -1,325 +0,0 @@
-/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
- 2011,2012,2013 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file AVR/chcore.h
- * @brief AVR architecture port macros and structures.
- *
- * @addtogroup AVR_CORE
- * @{
- */
-
-#ifndef _CHCORE_H_
-#define _CHCORE_H_
-
-#include <avr/io.h>
-#include <avr/interrupt.h>
-
-#if CH_DBG_ENABLE_STACK_CHECK
-#error "option CH_DBG_ENABLE_STACK_CHECK not supported by this port"
-#endif
-
-/**
- * @brief If enabled allows the idle thread to enter a low power mode.
- */
-#ifndef ENABLE_WFI_IDLE
-#define ENABLE_WFI_IDLE 0
-#endif
-
-/**
- * @brief Macro defining the AVR architecture.
- */
-#define CH_ARCHITECTURE_AVR
-
-/**
- * @brief Name of the implemented architecture.
- */
-#define CH_ARCHITECTURE_NAME "AVR"
-
-/**
- * @brief Name of the architecture variant (optional).
- */
-#define CH_CORE_VARIANT_NAME "MegaAVR"
-
-/**
- * @brief Name of the compiler supported by this port.
- */
-#define CH_COMPILER_NAME "GCC " __VERSION__
-
-/**
- * @brief Port-specific information string.
- */
-#define CH_PORT_INFO "None"
-
-/**
- * @brief 8 bits stack and memory alignment enforcement.
- */
-typedef uint8_t stkalign_t;
-
-/**
- * @brief Interrupt saved context.
- * @details This structure represents the stack frame saved during a
- * preemption-capable interrupt handler.
- * @note The field @p _next is not part of the context, it represents the
- * offset of the structure relative to the stack pointer.
- */
-struct extctx {
- uint8_t _next;
- uint8_t r31;
- uint8_t r30;
- uint8_t r27;
- uint8_t r26;
- uint8_t r25;
- uint8_t r24;
- uint8_t r23;
- uint8_t r22;
- uint8_t r21;
- uint8_t r20;
- uint8_t r19;
- uint8_t r18;
- uint8_t sr;
- uint8_t r1;
- uint8_t r0;
- uint16_t pc;
-};
-
-/**
- * @brief System saved context.
- * @details This structure represents the inner stack frame during a context
- * switching.
- * @note The field @p _next is not part of the context, it represents the
- * offset of the structure relative to the stack pointer.
- */
-struct intctx {
- uint8_t _next;
- uint8_t r29;
- uint8_t r28;
- uint8_t r17;
- uint8_t r16;
- uint8_t r15;
- uint8_t r14;
- uint8_t r13;
- uint8_t r12;
- uint8_t r11;
- uint8_t r10;
- uint8_t r9;
- uint8_t r8;
- uint8_t r7;
- uint8_t r6;
- uint8_t r5;
- uint8_t r4;
- uint8_t r3;
- uint8_t r2;
- uint8_t pcl;
- uint8_t pch;
-};
-
-/**
- * @brief Platform dependent part of the @p Thread structure.
- * @details In the AVR port this structure just holds a pointer to the
- * @p intctx structure representing the stack pointer at the time
- * of the context switch.
- */
-struct context {
- struct intctx *sp;
-};
-
-/**
- * @brief Platform dependent part of the @p chThdCreateI() API.
- * @details This code usually setup the context switching frame represented
- * by an @p intctx structure.
- */
-#define SETUP_CONTEXT(workspace, wsize, pf, arg) { \
- tp->p_ctx.sp = (struct intctx*)((uint8_t *)workspace + wsize - \
- sizeof(struct intctx)); \
- tp->p_ctx.sp->r2 = (int)pf; \
- tp->p_ctx.sp->r3 = (int)pf >> 8; \
- tp->p_ctx.sp->r4 = (int)arg; \
- tp->p_ctx.sp->r5 = (int)arg >> 8; \
- tp->p_ctx.sp->pcl = (int)_port_thread_start >> 8; \
- tp->p_ctx.sp->pch = (int)_port_thread_start; \
-}
-
-/**
- * @brief Stack size for the system idle thread.
- * @details This size depends on the idle thread implementation, usually
- * the idle thread should take no more space than those reserved
- * by @p PORT_INT_REQUIRED_STACK.
- * @note In this port it is set to 8.
- */
-#ifndef PORT_IDLE_THREAD_STACK_SIZE
-#define PORT_IDLE_THREAD_STACK_SIZE 8
-#endif
-
-/**
- * @brief Per-thread stack overhead for interrupts servicing.
- * @details This constant is used in the calculation of the correct working
- * area size.
- * This value can be zero on those architecture where there is a
- * separate interrupt stack and the stack space between @p intctx and
- * @p extctx is known to be zero.
- * @note In this port the default is 32 bytes per thread.
- */
-#ifndef PORT_INT_REQUIRED_STACK
-#define PORT_INT_REQUIRED_STACK 32
-#endif
-
-/**
- * @brief Enforces a correct alignment for a stack area size value.
- */
-#define STACK_ALIGN(n) ((((n) - 1) | (sizeof(stkalign_t) - 1)) + 1)
-
-/**
- * @brief Computes the thread working area global size.
- */
-#define THD_WA_SIZE(n) STACK_ALIGN(sizeof(Thread) + \
- (sizeof(struct intctx) - 1) + \
- (sizeof(struct extctx) - 1) + \
- (n) + (PORT_INT_REQUIRED_STACK))
-
-/**
- * @brief Static working area allocation.
- * @details This macro is used to allocate a static thread working area
- * aligned as both position and size.
- */
-#define WORKING_AREA(s, n) stkalign_t s[THD_WA_SIZE(n) / sizeof(stkalign_t)]
-
-/**
- * @brief IRQ prologue code.
- * @details This macro must be inserted at the start of all IRQ handlers
- * enabled to invoke system APIs.
- * @note This code tricks the compiler to save all the specified registers
- * by "touching" them.
- */
-#define PORT_IRQ_PROLOGUE() { \
- asm ("" : : : "r18", "r19", "r20", "r21", "r22", "r23", "r24", \
- "r25", "r26", "r27", "r30", "r31"); \
-}
-
-/**
- * @brief IRQ epilogue code.
- * @details This macro must be inserted at the end of all IRQ handlers
- * enabled to invoke system APIs.
- */
-#define PORT_IRQ_EPILOGUE() { \
- dbg_check_lock(); \
- if (chSchIsPreemptionRequired()) \
- chSchDoReschedule(); \
- dbg_check_unlock(); \
-}
-
-/**
- * @brief IRQ handler function declaration.
- * @note @p id can be a function name or a vector number depending on the
- * port implementation.
- */
-#define PORT_IRQ_HANDLER(id) ISR(id)
-
-/**
- * @brief Port-related initialization code.
- * @note This function is empty in this port.
- */
-#define port_init()
-
-/**
- * @brief Kernel-lock action.
- * @details Usually this function just disables interrupts but may perform more
- * actions.
- * @note Implemented as global interrupt disable.
- */
-#define port_lock() asm volatile ("cli" : : : "memory")
-
-/**
- * @brief Kernel-unlock action.
- * @details Usually this function just enables interrupts but may perform more
- * actions.
- * @note Implemented as global interrupt enable.
- */
-#define port_unlock() asm volatile ("sei" : : : "memory")
-
-/**
- * @brief Kernel-lock action from an interrupt handler.
- * @details This function is invoked before invoking I-class APIs from
- * interrupt handlers. The implementation is architecture dependent,
- * in its simplest form it is void.
- * @note This function is empty in this port.
- */
-#define port_lock_from_isr()
-
-/**
- * @brief Kernel-unlock action from an interrupt handler.
- * @details This function is invoked after invoking I-class APIs from interrupt
- * handlers. The implementation is architecture dependent, in its
- * simplest form it is void.
- * @note This function is empty in this port.
- */
-#define port_unlock_from_isr()
-
-/**
- * @brief Disables all the interrupt sources.
- * @note Of course non-maskable interrupt sources are not included.
- * @note Implemented as global interrupt disable.
- */
-#define port_disable() asm volatile ("cli" : : : "memory")
-
-/**
- * @brief Disables the interrupt sources below kernel-level priority.
- * @note Interrupt sources above kernel level remains enabled.
- * @note Same as @p port_disable() in this port, there is no difference
- * between the two states.
- */
-#define port_suspend() asm volatile ("cli" : : : "memory")
-
-/**
- * @brief Enables all the interrupt sources.
- * @note Implemented as global interrupt enable.
- */
-#define port_enable() asm volatile ("sei" : : : "memory")
-
-/**
- * @brief Enters an architecture-dependent IRQ-waiting mode.
- * @details The function is meant to return when an interrupt becomes pending.
- * The simplest implementation is an empty function or macro but this
- * would not take advantage of architecture-specific power saving
- * modes.
- * @note This port function is implemented as inlined code for performance
- * reasons.
- */
-#if ENABLE_WFI_IDLE != 0
-#define port_wait_for_interrupt() { \
- asm volatile ("sleep" : : : "memory"); \
-}
-#else
-#define port_wait_for_interrupt()
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
- void port_switch(Thread *ntp, Thread *otp);
- void port_halt(void);
- void _port_thread_start(void);
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _CHCORE_H_ */
-
-/** @} */
diff --git a/os/ports/GCC/AVR/chtypes.h b/os/ports/GCC/AVR/chtypes.h
deleted file mode 100644
index 59d896af4..000000000
--- a/os/ports/GCC/AVR/chtypes.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
- 2011,2012,2013 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file AVR/chtypes.h
- * @brief AVR architecture port system types.
- *
- * @addtogroup AVR_CORE
- * @{
- */
-
-#ifndef _CHTYPES_H_
-#define _CHTYPES_H_
-
-#include <stddef.h>
-#include <stdint.h>
-#include <stdbool.h>
-
-typedef bool bool_t; /**< Fast boolean type. */
-typedef uint8_t tmode_t; /**< Thread flags. */
-typedef uint8_t tstate_t; /**< Thread state. */
-typedef uint8_t trefs_t; /**< Thread references counter. */
-typedef uint8_t tslices_t; /**< Thread time slices counter. */
-typedef uint8_t tprio_t; /**< Thread priority. */
-typedef int16_t msg_t; /**< Inter-thread message. */
-typedef uint8_t eventid_t; /**< Event Id. */
-typedef uint8_t eventmask_t; /**< Event mask. */
-typedef uint8_t flagsmask_t; /**< Event flags. */
-typedef uint16_t systime_t; /**< System time. */
-typedef int8_t cnt_t; /**< Resources counter. */
-
-/**
- * @brief Inline function modifier.
- */
-#define INLINE inline
-
-/**
- * @brief ROM constant modifier.
- * @note It is set to use the "const" keyword in this port.
- */
-#define ROMCONST const
-
-/**
- * @brief Packed structure modifier (within).
- * @note It uses the "packed" GCC attribute.
- */
-#define PACK_STRUCT_STRUCT __attribute__((packed))
-
-/**
- * @brief Packed structure modifier (before).
- * @note Empty in this port.
- */
-#define PACK_STRUCT_BEGIN
-
-/**
- * @brief Packed structure modifier (after).
- * @note Empty in this port.
- */
-#define PACK_STRUCT_END
-
-#endif /* _CHTYPES_H_ */
-
-/** @} */
diff --git a/os/ports/GCC/AVR/port.dox b/os/ports/GCC/AVR/port.dox
deleted file mode 100644
index 002a37bbc..000000000
--- a/os/ports/GCC/AVR/port.dox
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
- 2011,2012,2013 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @defgroup AVR MegaAVR
- * @details AVR port for the GCC compiler.
- *
- * @section AVR_STATES Mapping of the System States in the AVR port
- * The ChibiOS/RT logical @ref system_states are mapped as follow in the AVR
- * port:
- * - <b>Init</b>. This state is represented by the startup code and the
- * initialization code before @p chSysInit() is executed. It has not a
- * special hardware state associated.
- * - <b>Normal</b>. This is the state the system has after executing
- * @p chSysInit(). Interrupts are enabled.
- * - <b>Suspended</b>. Interrupts are disabled.
- * - <b>Disabled</b>. Interrupts are disabled. This state is equivalent to the
- * Suspended state because there are no fast interrupts in this architecture.
- * - <b>Sleep</b>. This state is entered with the execution of the specific
- * instruction @p <b>sleep</b>.
- * - <b>S-Locked</b>. Interrupts are disabled.
- * - <b>I-Locked</b>. This state is equivalent to the SRI state, the
- * @p chSysLockI() and @p chSysUnlockI() APIs do nothing (still use them in
- * order to formally change state because this may change).
- * - <b>Serving Regular Interrupt</b>. Normal interrupt service code.
- * - <b>Serving Fast Interrupt</b>. Not present in this architecture.
- * - <b>Serving Non-Maskable Interrupt</b>. Not present in this architecture.
- * - <b>Halted</b>. Implemented as an infinite loop with interrupts disabled.
- * .
- * @section AVR_NOTES The AVR port notes
- * - The AVR does not have a dedicated interrupt stack, make sure to reserve
- * enough stack space for interrupts in each thread stack. This can be done
- * by modifying the @p INT_REQUIRED_STACK macro into
- * <b>./ports/AVR/chcore.h</b>.
- * .
- * @ingroup gcc
- */
-
-/**
- * @defgroup AVR_CONF Configuration Options
- * @details AVR Configuration Options. The AVR port allows some
- * architecture-specific configurations settings that can be overridden
- * by redefining them in @p chconf.h. Usually there is no need to change
- * the default values.
- * - @p INT_REQUIRED_STACK, this value represent the amount of stack space
- * used by the interrupt handlers.<br>
- * The default for this value is @p 32, this space is allocated for each
- * thread so be careful in order to not waste precious RAM space.
- * - @p IDLE_THREAD_STACK_SIZE, stack area size to be assigned to the IDLE
- * thread. Usually there is no need to change this value unless inserting
- * code in the IDLE thread hook macro.
- * .
- * @ingroup AVR
- */
-
-/**
- * @defgroup AVR_CORE Core Port Implementation
- * @details AVR specific port code, structures and macros.
- *
- * @ingroup AVR
- */
-
- /**
- * @defgroup AVR_STARTUP Startup Support
- * @details ChibiOS/RT doed not provide startup files for the AVR, there
- * are no special startup requirement so the normal toolchain-provided
- * startup files can be used.
- *
- * @ingroup AVR
- */
diff --git a/os/ports/GCC/AVR/port.mk b/os/ports/GCC/AVR/port.mk
deleted file mode 100644
index 7cafb56b2..000000000
--- a/os/ports/GCC/AVR/port.mk
+++ /dev/null
@@ -1,6 +0,0 @@
-# List of the ChibiOS/RT AVR port files.
-PORTSRC = ${CHIBIOS}/os/ports/GCC/AVR/chcore.c
-
-PORTASM =
-
-PORTINC = ${CHIBIOS}/os/ports/GCC/AVR