diff options
Diffstat (limited to 'os/ports/GCC/ARMCMx/chcore_v6m.h')
| -rw-r--r-- | os/ports/GCC/ARMCMx/chcore_v6m.h | 375 |
1 files changed, 0 insertions, 375 deletions
diff --git a/os/ports/GCC/ARMCMx/chcore_v6m.h b/os/ports/GCC/ARMCMx/chcore_v6m.h deleted file mode 100644 index 7d6ffeaa9..000000000 --- a/os/ports/GCC/ARMCMx/chcore_v6m.h +++ /dev/null @@ -1,375 +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 GCC/ARMCMx/chcore_v6m.h
- * @brief ARMv6-M architecture port macros and structures.
- *
- * @addtogroup ARMCMx_V6M_CORE
- * @{
- */
-
-#ifndef _CHCORE_V6M_H_
-#define _CHCORE_V6M_H_
-
-/*===========================================================================*/
-/* Port constants. */
-/*===========================================================================*/
-
-/**
- * @brief PendSV priority level.
- * @note This priority is enforced to be equal to @p 0,
- * this handler always has the highest priority that cannot preempt
- * the kernel.
- */
-#define CORTEX_PRIORITY_PENDSV 0
-
-/*===========================================================================*/
-/* Port macros. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Port configurable parameters. */
-/*===========================================================================*/
-
-/**
- * @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 16 because the idle thread does have
- * a stack frame when compiling without optimizations. You may
- * reduce this value to zero when compiling with optimizations.
- */
-#if !defined(PORT_IDLE_THREAD_STACK_SIZE)
-#define PORT_IDLE_THREAD_STACK_SIZE 16
-#endif
-
-/**
- * @brief Per-thread stack overhead for interrupts servicing.
- * @details This constant is used in the calculation of the correct working
- * area size.
- * @note In this port this value is conservatively set to 32 because the
- * function @p chSchDoReschedule() can have a stack frame, especially
- * with compiler optimizations disabled. The value can be reduced
- * when compiler optimizations are enabled.
- */
-#if !defined(PORT_INT_REQUIRED_STACK)
-#define PORT_INT_REQUIRED_STACK 32
-#endif
-
-/**
- * @brief Enables the use of the WFI instruction in the idle thread loop.
- */
-#if !defined(CORTEX_ENABLE_WFI_IDLE)
-#define CORTEX_ENABLE_WFI_IDLE FALSE
-#endif
-
-/**
- * @brief SYSTICK handler priority.
- * @note The default SYSTICK handler priority is calculated as the priority
- * level in the middle of the numeric priorities range.
- */
-#if !defined(CORTEX_PRIORITY_SYSTICK)
-#define CORTEX_PRIORITY_SYSTICK (CORTEX_PRIORITY_LEVELS >> 1)
-#elif !CORTEX_IS_VALID_PRIORITY(CORTEX_PRIORITY_SYSTICK)
-/* If it is externally redefined then better perform a validity check on it.*/
-#error "invalid priority level specified for CORTEX_PRIORITY_SYSTICK"
-#endif
-
-/**
- * @brief Alternate preemption method.
- * @details Activating this option will make the Kernel use the PendSV
- * handler for preemption instead of the NMI handler.
- */
-#ifndef CORTEX_ALTERNATE_SWITCH
-#define CORTEX_ALTERNATE_SWITCH FALSE
-#endif
-
-/*===========================================================================*/
-/* Port derived parameters. */
-/*===========================================================================*/
-
-/**
- * @brief Maximum usable priority for normal ISRs.
- */
-#if CORTEX_ALTERNATE_SWITCH || defined(__DOXYGEN__)
-#define CORTEX_MAX_KERNEL_PRIORITY 1
-#else
-#define CORTEX_MAX_KERNEL_PRIORITY 0
-#endif
-
-/*===========================================================================*/
-/* Port exported info. */
-/*===========================================================================*/
-
-/**
- * @brief Macro defining the specific ARM architecture.
- */
-#define CH_ARCHITECTURE_ARM_v6M
-
-/**
- * @brief Name of the implemented architecture.
- */
-#define CH_ARCHITECTURE_NAME "ARMv6-M"
-
-/**
- * @brief Name of the architecture variant.
- */
-#if (CORTEX_MODEL == CORTEX_M0) || defined(__DOXYGEN__)
-#define CH_CORE_VARIANT_NAME "Cortex-M0"
-#elif (CORTEX_MODEL == CORTEX_M1)
-#define CH_CORE_VARIANT_NAME "Cortex-M1"
-#endif
-
-/**
- * @brief Port-specific information string.
- */
-#if !CORTEX_ALTERNATE_SWITCH || defined(__DOXYGEN__)
-#define CH_PORT_INFO "Preemption through NMI"
-#else
-#define CH_PORT_INFO "Preemption through PendSV"
-#endif
-
-/*===========================================================================*/
-/* Port implementation part. */
-/*===========================================================================*/
-
-#if !defined(_FROM_ASM_)
-
-/**
- * @brief Generic ARM register.
- */
-typedef void *regarm_t;
-
- /* The documentation of the following declarations is in chconf.h in order
- to not have duplicated structure names into the documentation.*/
-#if !defined(__DOXYGEN__)
-
-typedef uint64_t stkalign_t __attribute__ ((aligned (8)));
-
-struct extctx {
- regarm_t r0;
- regarm_t r1;
- regarm_t r2;
- regarm_t r3;
- regarm_t r12;
- regarm_t lr_thd;
- regarm_t pc;
- regarm_t xpsr;
-};
-
-struct intctx {
- regarm_t r8;
- regarm_t r9;
- regarm_t r10;
- regarm_t r11;
- regarm_t r4;
- regarm_t r5;
- regarm_t r6;
- regarm_t r7;
- regarm_t lr;
-};
-
-#endif /* !defined(__DOXYGEN__) */
-
-/**
- * @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 = (void *)(pf); \
- tp->p_ctx.r13->r5 = (void *)(arg); \
- tp->p_ctx.r13->lr = (void *)(_port_thread_start); \
-}
-
-/**
- * @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.
- */
-#define PORT_IRQ_PROLOGUE() \
- regarm_t _saved_lr; \
- asm volatile ("mov %0, lr" : "=r" (_saved_lr) : : "memory")
-
-/**
- * @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() _port_irq_epilogue(_saved_lr)
-
-/**
- * @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) void id(void)
-
-/**
- * @brief Fast IRQ handler function declaration.
- * @note @p id can be a function name or a vector number depending on the
- * port implementation.
- */
-#define PORT_FAST_IRQ_HANDLER(id) void id(void)
-
-/**
- * @brief Port-related initialization code.
- */
-#define port_init() { \
- SCB_AIRCR = AIRCR_VECTKEY | AIRCR_PRIGROUP(0); \
- nvicSetSystemHandlerPriority(HANDLER_PENDSV, \
- CORTEX_PRIORITY_MASK(CORTEX_PRIORITY_PENDSV)); \
- nvicSetSystemHandlerPriority(HANDLER_SYSTICK, \
- CORTEX_PRIORITY_MASK(CORTEX_PRIORITY_SYSTICK)); \
-}
-
-/**
- * @brief Kernel-lock action.
- * @details Usually this function just disables interrupts but may perform
- * more actions.
- */
-#define port_lock() asm volatile ("cpsid i" : : : "memory")
-
-/**
- * @brief Kernel-unlock action.
- * @details Usually this function just enables interrupts but may perform
- * more actions.
- */
-#define port_unlock() asm volatile ("cpsie i" : : : "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 Same as @p port_lock() in this port.
- */
-#define port_lock_from_isr() port_lock()
-
-/**
- * @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 Same as @p port_lock() in this port.
- */
-#define port_unlock_from_isr() port_unlock()
-
-/**
- * @brief Disables all the interrupt sources.
- */
-#define port_disable() asm volatile ("cpsid i" : : : "memory")
-
-/**
- * @brief Disables the interrupt sources below kernel-level priority.
- */
-#define port_suspend() asm volatile ("cpsid i" : : : "memory")
-
-/**
- * @brief Enables all the interrupt sources.
- */
-#define port_enable() asm volatile ("cpsie i" : : : "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 Implemented as an inlined @p WFI instruction.
- */
-#if CORTEX_ENABLE_WFI_IDLE || defined(__DOXYGEN__)
-#define port_wait_for_interrupt() asm volatile ("wfi" : : : "memory")
-#else
-#define port_wait_for_interrupt()
-#endif
-
-/**
- * @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.
- *
- * @param[in] ntp the thread to be switched in
- * @param[in] otp the thread to be switched out
- */
-#if !CH_DBG_ENABLE_STACK_CHECK || defined(__DOXYGEN__)
-#define port_switch(ntp, otp) _port_switch(ntp, otp)
-#else
-#define port_switch(ntp, otp) { \
- register struct intctx *r13 asm ("r13"); \
- if ((stkalign_t *)(r13 - 1) < otp->p_stklimit) \
- chDbgPanic("stack overflow"); \
- _port_switch(ntp, otp); \
-}
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
- void _port_irq_epilogue(regarm_t lr);
- void _port_switch_from_isr(void);
- void _port_exit_from_isr(void);
- void _port_switch(Thread *ntp, Thread *otp);
- void _port_thread_start(void);
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _FROM_ASM_ */
-
-#endif /* _CHCORE_V6M_H_ */
-
-/** @} */
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