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authorGiovanni Di Sirio <gdisirio@gmail.com>2016-02-16 10:07:00 +0000
committerGiovanni Di Sirio <gdisirio@gmail.com>2016-02-16 10:07:00 +0000
commitcf204e72ea5fd6e4be8b3295cb148fde5fdd47d2 (patch)
tree5aae4b9a6c78c8f14c2a6ca8cd6446f42b3b29bd /os/rt/ports/ARMCMx/chcore_v6m.h
parent641f2c372605cf405f0dda8536b45a78e0e5e2e2 (diff)
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Tree reorganization.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@8900 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/rt/ports/ARMCMx/chcore_v6m.h')
-rw-r--r--os/rt/ports/ARMCMx/chcore_v6m.h407
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diff --git a/os/rt/ports/ARMCMx/chcore_v6m.h b/os/rt/ports/ARMCMx/chcore_v6m.h
deleted file mode 100644
index c8361a549..000000000
--- a/os/rt/ports/ARMCMx/chcore_v6m.h
+++ /dev/null
@@ -1,407 +0,0 @@
-/*
- ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio.
-
- This file is part of ChibiOS.
-
- ChibiOS 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 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 chcore_v6m.h
- * @brief ARMv6-M architecture port macros and structures.
- *
- * @addtogroup ARMCMx_V6M_CORE
- * @{
- */
-
-#ifndef _CHCORE_V6M_H_
-#define _CHCORE_V6M_H_
-
-/*===========================================================================*/
-/* Module constants. */
-/*===========================================================================*/
-
-/**
- * @brief This port does not support a realtime counter.
- */
-#define PORT_SUPPORTS_RT FALSE
-
-/**
- * @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
-
-/*===========================================================================*/
-/* Module pre-compile time settings. */
-/*===========================================================================*/
-
-/**
- * @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 64 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 64
-#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 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
-
-/*===========================================================================*/
-/* Derived constants and error checks. */
-/*===========================================================================*/
-
-/**
- * @name Architecture and Compiler
- * @{
- */
-#if ((CORTEX_MODEL == 0) && !defined(__CORE_CM0PLUS_H_DEPENDANT)) || \
- defined(__DOXYGEN__)
-/**
- * @brief Macro defining the specific ARM architecture.
- */
-#define PORT_ARCHITECTURE_ARM_v6M
-
-/**
- * @brief Name of the implemented architecture.
- */
-#define PORT_ARCHITECTURE_NAME "ARMv6-M"
-
-/**
- * @brief Name of the architecture variant.
- */
-#define PORT_CORE_VARIANT_NAME "Cortex-M0"
-
-#elif (CORTEX_MODEL == 0) && defined(__CORE_CM0PLUS_H_DEPENDANT)
-#define PORT_ARCHITECTURE_ARM_v6M
-#define PORT_ARCHITECTURE_NAME "ARMv6-M"
-#define PORT_CORE_VARIANT_NAME "Cortex-M0+"
-#endif
-
-/**
- * @brief Port-specific information string.
- */
-#if (CORTEX_ALTERNATE_SWITCH == FALSE) || defined(__DOXYGEN__)
-#define PORT_INFO "Preemption through NMI"
-#else
-#define PORT_INFO "Preemption through PendSV"
-#endif
-/** @} */
-
-/**
- * @brief Maximum usable priority for normal ISRs.
- */
-#if (CORTEX_ALTERNATE_SWITCH == TRUE) || defined(__DOXYGEN__)
-#define CORTEX_MAX_KERNEL_PRIORITY 1
-#else
-#define CORTEX_MAX_KERNEL_PRIORITY 0
-#endif
-
-/*===========================================================================*/
-/* Module data structures and types. */
-/*===========================================================================*/
-
-#if !defined(_FROM_ASM_)
-
- /* The documentation of the following declarations is in chconf.h in order
- to not have duplicated structure names into the documentation.*/
-#if !defined(__DOXYGEN__)
-struct port_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 port_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__) */
-
-/*===========================================================================*/
-/* Module macros. */
-/*===========================================================================*/
-
-/**
- * @brief Platform dependent part of the @p chThdCreateI() API.
- * @details This code usually setup the context switching frame represented
- * by an @p port_intctx structure.
- */
-#define PORT_SETUP_CONTEXT(tp, workspace, wsize, pf, arg) { \
- (tp)->p_ctx.r13 = (struct port_intctx *)((uint8_t *)(workspace) + \
- (wsize) - \
- sizeof(struct port_intctx)); \
- (tp)->p_ctx.r13->r4 = (regarm_t)(pf); \
- (tp)->p_ctx.r13->r5 = (regarm_t)(arg); \
- (tp)->p_ctx.r13->lr = (regarm_t)_port_thread_start; \
-}
-
-/**
- * @brief Computes the thread working area global size.
- * @note There is no need to perform alignments in this macro.
- */
-#define PORT_WA_SIZE(n) (sizeof(struct port_intctx) + \
- sizeof(struct port_extctx) + \
- ((size_t)(n)) + ((size_t)(PORT_INT_REQUIRED_STACK)))
-
-/**
- * @brief IRQ prologue code.
- * @details This macro must be inserted at the start of all IRQ handlers
- * enabled to invoke system APIs.
- */
-#if defined(__GNUC__) || defined(__DOXYGEN__)
-#define PORT_IRQ_PROLOGUE() \
- regarm_t _saved_lr = (regarm_t)__builtin_return_address(0)
-#elif defined(__ICCARM__)
-#define PORT_IRQ_PROLOGUE() \
- regarm_t _saved_lr = (regarm_t)__get_LR()
-#elif defined(__CC_ARM)
-#define PORT_IRQ_PROLOGUE() \
- regarm_t _saved_lr = (regarm_t)__return_address()
-#endif
-
-/**
- * @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 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 == FALSE) || defined(__DOXYGEN__)
-#define port_switch(ntp, otp) _port_switch(ntp, otp)
-#else
-#define port_switch(ntp, otp) { \
- struct port_intctx *r13 = (struct port_intctx *)__get_PSP(); \
- if ((stkalign_t *)(r13 - 1) < (otp)->p_stklimit) { \
- chSysHalt("stack overflow"); \
- } \
- _port_switch(ntp, otp); \
-}
-#endif
-
-/*===========================================================================*/
-/* External declarations. */
-/*===========================================================================*/
-
-#ifdef __cplusplus
-extern "C" {
-#endif
- void _port_irq_epilogue(regarm_t lr);
- void _port_switch(thread_t *ntp, thread_t *otp);
- void _port_thread_start(void);
- void _port_switch_from_isr(void);
- void _port_exit_from_isr(void);
-#ifdef __cplusplus
-}
-#endif
-
-/*===========================================================================*/
-/* Module inline functions. */
-/*===========================================================================*/
-
-/**
- * @brief Port-related initialization code.
- */
-static inline void port_init(void) {
-
- NVIC_SetPriority(PendSV_IRQn, CORTEX_PRIORITY_PENDSV);
-}
-
-/**
- * @brief Returns a word encoding the current interrupts status.
- *
- * @return The interrupts status.
- */
-static inline syssts_t port_get_irq_status(void) {
-
- return (syssts_t)__get_PRIMASK();
-}
-
-/**
- * @brief Checks the interrupt status.
- *
- * @param[in] sts the interrupt status word
- *
- * @return The interrupt status.
- * @retvel false the word specified a disabled interrupts status.
- * @retvel true the word specified an enabled interrupts status.
- */
-static inline bool port_irq_enabled(syssts_t sts) {
-
- return (sts & (syssts_t)1) == (syssts_t)0;
-}
-
-/**
- * @brief Determines the current execution context.
- *
- * @return The execution context.
- * @retval false not running in ISR mode.
- * @retval true running in ISR mode.
- */
-static inline bool port_is_isr_context(void) {
-
- return (bool)((__get_IPSR() & 0x1FFU) != 0U);
-}
-
-/**
- * @brief Kernel-lock action.
- * @details In this port this function disables interrupts globally.
- */
-static inline void port_lock(void) {
-
- __disable_irq();
-}
-
-/**
- * @brief Kernel-unlock action.
- * @details In this port this function enables interrupts globally.
- */
-static inline void port_unlock(void) {
-
- __enable_irq();
-}
-
-/**
- * @brief Kernel-lock action from an interrupt handler.
- * @details In this port this function disables interrupts globally.
- * @note Same as @p port_lock() in this port.
- */
-static inline void port_lock_from_isr(void) {
-
- port_lock();
-}
-
-/**
- * @brief Kernel-unlock action from an interrupt handler.
- * @details In this port this function enables interrupts globally.
- * @note Same as @p port_lock() in this port.
- */
-static inline void port_unlock_from_isr(void) {
-
- port_unlock();
-}
-
-/**
- * @brief Disables all the interrupt sources.
- */
-static inline void port_disable(void) {
-
- __disable_irq();
-}
-
-/**
- * @brief Disables the interrupt sources below kernel-level priority.
- */
-static inline void port_suspend(void) {
-
- __disable_irq();
-}
-
-/**
- * @brief Enables all the interrupt sources.
- */
-static inline void port_enable(void) {
-
- __enable_irq();
-}
-
-/**
- * @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.
- */
-static inline void port_wait_for_interrupt(void) {
-
-#if CORTEX_ENABLE_WFI_IDLE == TRUE
- __WFI();
-#endif
-}
-
-#endif /* _FROM_ASM_ */
-
-#endif /* _CHCORE_V6M_H_ */
-
-/** @} */