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Diffstat (limited to 'os/ports/GCC/ARM/chcore.h')
| -rw-r--r-- | os/ports/GCC/ARM/chcore.h | 478 |
1 files changed, 0 insertions, 478 deletions
diff --git a/os/ports/GCC/ARM/chcore.h b/os/ports/GCC/ARM/chcore.h deleted file mode 100644 index d1b6a1e12..000000000 --- a/os/ports/GCC/ARM/chcore.h +++ /dev/null @@ -1,478 +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 ARM/chcore.h
- * @brief ARM7/9 architecture port macros and structures.
- *
- * @addtogroup ARM_CORE
- * @{
- */
-
-#ifndef _CHCORE_H_
-#define _CHCORE_H_
-
-/*===========================================================================*/
-/* Port constants. */
-/*===========================================================================*/
-
-/* Core variants identifiers.*/
-#define ARM_CORE_ARM7TDMI 7 /**< ARM77TDMI core identifier. */
-#define ARM_CORE_ARM9 9 /**< ARM9 core identifier. */
-
-/* Inclusion of the ARM implementation specific parameters.*/
-#include "armparams.h"
-
-/* ARM core check, only ARM7TDMI and ARM9 supported right now.*/
-#if (ARM_CORE == ARM_CORE_ARM7TDMI) || (ARM_CORE == ARM_CORE_ARM9)
-#else
-#error "unknown or unsupported ARM core"
-#endif
-
-/*===========================================================================*/
-/* Port statically derived parameters. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Port macros. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Port configurable parameters. */
-/*===========================================================================*/
-
-/**
- * @brief If enabled allows the idle thread to enter a low power mode.
- */
-#ifndef ARM_ENABLE_WFI_IDLE
-#define ARM_ENABLE_WFI_IDLE FALSE
-#endif
-
-/*===========================================================================*/
-/* Port exported info. */
-/*===========================================================================*/
-
-/**
- * @brief Macro defining a generic ARM architecture.
- */
-#define CH_ARCHITECTURE_ARM
-
-#if defined(__DOXYGEN__)
-/**
- * @brief Macro defining the specific ARM architecture.
- * @note This macro is for documentation only, the real name changes
- * depending on the selected architecture, the possible names are:
- * - CH_ARCHITECTURE_ARM7TDMI.
- * - CH_ARCHITECTURE_ARM9.
- * .
- */
-#define CH_ARCHITECTURE_ARMx
-
-/**
- * @brief Name of the implemented architecture.
- * @note The value is for documentation only, the real value changes
- * depending on the selected architecture, the possible values are:
- * - "ARM7".
- * - "ARM9".
- * .
- */
-#define CH_ARCHITECTURE_NAME "ARMx"
-
-/**
- * @brief Name of the architecture variant (optional).
- * @note The value is for documentation only, the real value changes
- * depending on the selected architecture, the possible values are:
- * - "ARM7TDMI"
- * - "ARM9"
- * .
- */
-#define CH_CORE_VARIANT_NAME "ARMxy"
-
-/**
- * @brief Port-specific information string.
- * @note The value is for documentation only, the real value changes
- * depending on the selected options, the possible values are:
- * - "Pure ARM"
- * - "Pure THUMB"
- * - "Interworking"
- * .
- */
-#define CH_PORT_INFO "ARM|THUMB|Interworking"
-
-#elif ARM_CORE == ARM_CORE_ARM7TDMI
-#define CH_ARCHITECTURE_ARM7TDMI
-#define CH_ARCHITECTURE_NAME "ARM7"
-#define CH_CORE_VARIANT_NAME "ARM7TDMI"
-
-#elif ARM_MODEL == ARM_VARIANT_ARM9
-#define CH_ARCHITECTURE_ARM9
-#define CH_ARCHITECTURE_NAME "ARM9"
-#define CH_CORE_VARIANT_NAME "ARM9"
-#endif
-
-#if THUMB_PRESENT
-#if THUMB_NO_INTERWORKING
-#define CH_PORT_INFO "Pure THUMB mode"
-#else /* !THUMB_NO_INTERWORKING */
-#define CH_PORT_INFO "Interworking mode"
-#endif /* !THUMB_NO_INTERWORKING */
-#else /* !THUMB_PRESENT */
-#define CH_PORT_INFO "Pure ARM mode"
-#endif /* !THUMB_PRESENT */
-
-/**
- * @brief Name of the compiler supported by this port.
- */
-#define CH_COMPILER_NAME "GCC " __VERSION__
-
-/*===========================================================================*/
-/* Port implementation part (common). */
-/*===========================================================================*/
-
-/**
- * @brief 32 bits stack and memory alignment enforcement.
- */
-typedef uint32_t stkalign_t;
-
-/**
- * @brief Generic ARM register.
- */
-typedef void *regarm_t;
-
-/**
- * @brief Interrupt saved context.
- * @details This structure represents the stack frame saved during a
- * preemption-capable interrupt handler.
- */
-struct extctx {
- regarm_t spsr_irq;
- regarm_t lr_irq;
- regarm_t r0;
- regarm_t r1;
- regarm_t r2;
- regarm_t r3;
- regarm_t r12;
- regarm_t lr_usr;
-};
-
-/**
- * @brief System saved context.
- * @details This structure represents the inner stack frame during a context
- * switching.
- */
-struct intctx {
- regarm_t r4;
- regarm_t r5;
- regarm_t r6;
- regarm_t r7;
- regarm_t r8;
- regarm_t r9;
- regarm_t r10;
- regarm_t r11;
- regarm_t lr;
-};
-
-/**
- * @brief Platform dependent part of the @p Thread structure.
- * @details In this port the structure just holds a pointer to the @p intctx
- * structure representing the stack pointer at context switch time.
- */
-struct context {
- struct intctx *r13;
-};
-
-/**
- * @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.r13 = (struct intctx *)((uint8_t *)workspace + \
- wsize - \
- sizeof(struct intctx)); \
- tp->p_ctx.r13->r4 = pf; \
- tp->p_ctx.r13->r5 = arg; \
- tp->p_ctx.r13->lr = _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 4 because the idle thread does have
- * a stack frame when compiling without optimizations.
- */
-#ifndef PORT_IDLE_THREAD_STACK_SIZE
-#define PORT_IDLE_THREAD_STACK_SIZE 4
-#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 0x10 is a safe value, it can be reduced after careful
- * analysis of the generated code.
- */
-#ifndef PORT_INT_REQUIRED_STACK
-#define PORT_INT_REQUIRED_STACK 0x10
-#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) + \
- sizeof(struct extctx) + \
- (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 macro has a different implementation depending if compiled in
- * ARM or THUMB mode.
- * @note The THUMB implementation starts with ARM code because interrupt
- * vectors are always invoked in ARM mode regardless the bit 0
- * value. The switch in THUMB mode is done in the function prologue so
- * it is transparent to the user code.
- */
-#if !defined(PORT_IRQ_PROLOGUE)
-#ifdef THUMB
-#define PORT_IRQ_PROLOGUE() { \
- asm volatile (".code 32 \n\t" \
- "stmfd sp!, {r0-r3, r12, lr} \n\t" \
- "add r0, pc, #1 \n\t" \
- "bx r0 \n\t" \
- ".code 16" : : : "memory"); \
-}
-#else /* !THUMB */
-#define PORT_IRQ_PROLOGUE() { \
- asm volatile ("stmfd sp!, {r0-r3, r12, lr}" : : : "memory"); \
-}
-#endif /* !THUMB */
-#endif /* !defined(PORT_IRQ_PROLOGUE) */
-
-/**
- * @brief IRQ epilogue code.
- * @details This macro must be inserted at the end of all IRQ handlers
- * enabled to invoke system APIs.
- * @note This macro has a different implementation depending if compiled in
- * ARM or THUMB mode.
- */
-#if !defined(PORT_IRQ_EPILOGUE)
-#ifdef THUMB
-#define PORT_IRQ_EPILOGUE() { \
- asm volatile ("ldr r0, =_port_irq_common \n\t" \
- "bx r0" : : : "memory"); \
-}
-#else /* !THUMB */
-#define PORT_IRQ_EPILOGUE() { \
- asm volatile ("b _port_irq_common" : : : "memory"); \
-}
-#endif /* !THUMB */
-#endif /* !defined(PORT_IRQ_EPILOGUE) */
-
-/**
- * @brief IRQ handler function declaration.
- * @note @p id can be a function name or a vector number depending on the
- * port implementation.
- */
-#if !defined(PORT_IRQ_HANDLER)
-#define PORT_IRQ_HANDLER(id) __attribute__((naked)) void id(void)
-#endif /* !defined(PORT_IRQ_HANDLER) */
-
-/**
- * @brief Fast IRQ handler function declaration.
- * @note @p id can be a function name or a vector number depending on the
- * port implementation.
- */
-#if !defined(PORT_FAST_IRQ_HANDLER)
-#define PORT_FAST_IRQ_HANDLER(id) \
- __attribute__((interrupt("FIQ"))) void id(void)
-#endif /* !defined(PORT_FAST_IRQ_HANDLER) */
-
-/**
- * @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 In this port it disables the IRQ sources and keeps FIQ sources
- * enabled.
- */
-#ifdef THUMB
-#define port_lock() { \
- asm volatile ("bl _port_lock_thumb" : : : "r3", "lr", "memory"); \
-}
-#else /* !THUMB */
-#define port_lock() asm volatile ("msr CPSR_c, #0x9F" : : : "memory")
-#endif /* !THUMB */
-
-/**
- * @brief Kernel-unlock action.
- * @details Usually this function just enables interrupts but may perform
- * more actions.
- * @note In this port it enables both the IRQ and FIQ sources.
- */
-#ifdef THUMB
-#define port_unlock() { \
- asm volatile ("bl _port_unlock_thumb" : : : "r3", "lr", "memory"); \
-}
-#else /* !THUMB */
-#define port_unlock() asm volatile ("msr CPSR_c, #0x1F" : : : "memory")
-#endif /* !THUMB */
-
-/**
- * @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 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 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 In this port it disables both the IRQ and FIQ sources.
- * @note Implements a workaround for spurious interrupts taken from the NXP
- * LPC214x datasheet.
- */
-#ifdef THUMB
-#define port_disable() { \
- asm volatile ("bl _port_disable_thumb" : : : "r3", "lr", "memory"); \
-}
-#else /* !THUMB */
-#define port_disable() { \
- asm volatile ("mrs r3, CPSR \n\t" \
- "orr r3, #0x80 \n\t" \
- "msr CPSR_c, r3 \n\t" \
- "orr r3, #0x40 \n\t" \
- "msr CPSR_c, r3" : : : "r3", "memory"); \
-}
-#endif /* !THUMB */
-
-/**
- * @brief Disables the interrupt sources below kernel-level priority.
- * @note Interrupt sources above kernel level remains enabled.
- * @note In this port it disables the IRQ sources and enables the
- * FIQ sources.
- */
-#ifdef THUMB
-#define port_suspend() { \
- asm volatile ("bl _port_suspend_thumb" : : : "r3", "lr", "memory"); \
-}
-#else /* !THUMB */
-#define port_suspend() asm volatile ("msr CPSR_c, #0x9F" : : : "memory")
-#endif /* !THUMB */
-
-/**
- * @brief Enables all the interrupt sources.
- * @note In this port it enables both the IRQ and FIQ sources.
- */
-#ifdef THUMB
-#define port_enable() { \
- asm volatile ("bl _port_enable_thumb" : : : "r3", "lr", "memory"); \
-}
-#else /* !THUMB */
-#define port_enable() asm volatile ("msr CPSR_c, #0x1F" : : : "memory")
-#endif /* !THUMB */
-
-/**
- * @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 Implemented as inlined code for performance reasons.
- *
- * @param[in] ntp the thread to be switched in
- * @param[in] otp the thread to be switched out
- */
-#ifdef THUMB
-#if CH_DBG_ENABLE_STACK_CHECK
-#define port_switch(ntp, otp) { \
- register struct intctx *r13 asm ("r13"); \
- if ((stkalign_t *)(r13 - 1) < otp->p_stklimit) \
- chDbgPanic("stack overflow"); \
- _port_switch_thumb(ntp, otp); \
-}
-#else /* !CH_DBG_ENABLE_STACK_CHECK */
-#define port_switch(ntp, otp) _port_switch_thumb(ntp, otp)
-#endif /* !CH_DBG_ENABLE_STACK_CHECK */
-#else /* !THUMB */
-#if CH_DBG_ENABLE_STACK_CHECK
-#define port_switch(ntp, otp) { \
- register struct intctx *r13 asm ("r13"); \
- if ((stkalign_t *)(r13 - 1) < otp->p_stklimit) \
- chDbgPanic("stack overflow"); \
- _port_switch_arm(ntp, otp); \
-}
-#else /* !CH_DBG_ENABLE_STACK_CHECK */
-#define port_switch(ntp, otp) _port_switch_arm(ntp, otp)
-#endif /* !CH_DBG_ENABLE_STACK_CHECK */
-#endif /* !THUMB */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
- void port_halt(void);
-#ifdef THUMB
- void _port_switch_thumb(Thread *ntp, Thread *otp);
-#else /* !THUMB */
- void _port_switch_arm(Thread *ntp, Thread *otp);
-#endif /* !THUMB */
- void _port_thread_start(void);
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _CHCORE_H_ */
-
-/** @} */
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