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Diffstat (limited to 'ports/ARM7/chcore.h')
| -rw-r--r-- | ports/ARM7/chcore.h | 331 |
1 files changed, 0 insertions, 331 deletions
diff --git a/ports/ARM7/chcore.h b/ports/ARM7/chcore.h deleted file mode 100644 index 541207eef..000000000 --- a/ports/ARM7/chcore.h +++ /dev/null @@ -1,331 +0,0 @@ -/*
- ChibiOS/RT - Copyright (C) 2006-2007 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 ports/ARM7/chcore.h
- * @brief ARM7 architecture port macros and structures.
- * @addtogroup ARM7_CORE
- * @{
- */
-
-#ifndef _CHCORE_H_
-#define _CHCORE_H_
-
-/**
- * If enabled allows the idle thread to enter a low power mode. - */
-#ifndef ENABLE_WFI_IDLE
-#define ENABLE_WFI_IDLE 0
-#endif
-#include <wfi.h>
-
-/**
- * Macro defining the ARM7 architecture.
- */
-#define CH_ARCHITECTURE_ARM7
-
-/**
- * Name of the implemented architecture.
- */
-#define CH_ARCHITECTURE_NAME "ARM7TDMI"
-
-/**
- * 32 bit stack alignment.
- */
-typedef uint32_t stkalign_t;
-
-/**
- * Generic ARM register.
- */
-typedef void *regarm_t;
-
-/** @cond never */
-/**
- * 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;
-};
-/** @endcond */
-
-/** @cond never */
-/**
- * This structure represents the inner stack frame during a context switching.
- */
-struct intctx {
- regarm_t r4;
- regarm_t r5;
- regarm_t r6;
-#ifndef CH_CURRP_REGISTER_CACHE
- regarm_t r7;
-#endif
- regarm_t r8;
- regarm_t r9;
- regarm_t r10;
- regarm_t r11;
- regarm_t lr;
-};
-/** @endcond */
-
-/** @cond never */
-/**
- * In the ARM7 port this structure contains just the copy of the user mode
- * stack pointer.
- */
-struct context {
- struct intctx *r13;
-};
-/** @endcond */
-
-/**
- * Platform dependent part of the @p chThdInit() API.
- */
-#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; \
-}
-
-/**
- * Stack size for the system idle thread.
- */
-#ifndef IDLE_THREAD_STACK_SIZE
-#define IDLE_THREAD_STACK_SIZE 0
-#endif
-
-/**
- * Per-thread stack overhead for interrupts servicing, it is used in the
- * calculation of the correct working area size.
- * In this port 0x10 is a safe value, it can be reduced after careful generated
- * code analysis.
- */
-#ifndef INT_REQUIRED_STACK
-#define INT_REQUIRED_STACK 0x10
-#endif
-
-/**
- * Enforces a correct alignment for a stack area size value.
- */
-#define STACK_ALIGN(n) ((((n) - 1) | (sizeof(stkalign_t) - 1)) + 1)
-
-/**
- * Computes the thread working area global size.
- */
-#define THD_WA_SIZE(n) STACK_ALIGN(sizeof(Thread) + \
- sizeof(struct intctx) + \
- sizeof(struct extctx) + \
- (n) + (INT_REQUIRED_STACK))
-
-/**
- * Macro used to allocate a thread working area aligned as both position and
- * size.
- */
-#define WORKING_AREA(s, n) stkalign_t s[THD_WA_SIZE(n) / sizeof(stkalign_t)];
-
-/**
- * IRQ prologue code, 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. - */
-#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"); \
-}
-#else /* !THUMB */
-#define PORT_IRQ_PROLOGUE() { \
- asm volatile ("stmfd sp!, {r0-r3, r12, lr}"); \
-}
-#endif /* !THUMB */
-
-/**
- * IRQ epilogue code, 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.
- */
-#ifdef THUMB
-#define PORT_IRQ_EPILOGUE() { \
- asm volatile ("ldr r0, =_port_irq_common \n\t" \
- "bx r0"); \
-}
-#else /* !THUMB */
-#define PORT_IRQ_EPILOGUE() { \
- asm volatile ("b _port_irq_common"); \
-}
-#endif /* !THUMB */
-
-/**
- * IRQ handler function declaration.
- */
-#define PORT_IRQ_HANDLER(id) __attribute__((naked)) void id(void)
-
-/**
- * This function is empty in this port.
- */
-#define port_init()
-
-/**
- * Disables the IRQ sources and keeps the FIQ sources enabled.
- */
-#ifdef THUMB
-//#define port_lock() _port_lock_thumb()
-#define port_lock() { \
- asm volatile ("bl _port_lock_thumb" : : : "r3", "lr"); \
-}
-#else /* !THUMB */
-#define port_lock() asm volatile ("msr CPSR_c, #0x9F")
-#endif /* !THUMB */
-
-/**
- * Enables both the IRQ and FIQ sources.
- */
-#ifdef THUMB
-//#define port_unlock() _port_unlock_thumb()
-#define port_unlock() { \
- asm volatile ("bl _port_unlock_thumb" : : : "r3", "lr"); \
-}
-#else /* !THUMB */
-#define port_unlock() asm volatile ("msr CPSR_c, #0x1F")
-#endif /* !THUMB */
-
-/**
- * This function is empty in this port.
- */
-#define port_lock_from_isr()
-
-/**
- * This function is empty in this port.
- */
-#define port_unlock_from_isr()
-
-/**
- * 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() _port_disable_thumb()
-#define port_disable() { \
- asm volatile ("bl _port_disable_thumb" : : : "r3", "lr"); \
-}
-#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"); \
-}
-#endif /* !THUMB */
-
-/**
- * Disables the IRQ sources and enables the FIQ sources.
- */
-#ifdef THUMB
-#define port_suspend() { \
- asm volatile ("bl _port_suspend_thumb" : : : "r3", "lr"); \
-}
-#else /* !THUMB */
-#define port_suspend() asm volatile ("msr CPSR_c, #0x9F")
-#endif /* !THUMB */
-
-/**
- * Enables both the IRQ and FIQ sources.
- */
-#ifdef THUMB
-#define port_enable() { \
- asm volatile ("bl _port_enable_thumb" : : : "r3", "lr"); \
-}
-#else /* !THUMB */
-#define port_enable() asm volatile ("msr CPSR_c, #0x1F")
-#endif /* !THUMB */
-
-/**
- * Performs a context switch between two threads.
- * @param otp the thread to be switched out
- * @param ntp the thread to be switched in
- */
-#ifdef THUMB
-#if CH_DBG_ENABLE_STACK_CHECK
-#define port_switch(otp, ntp) { \
- register Thread *_otp asm ("r0") = (otp); \
- register Thread *_ntp asm ("r1") = (ntp); \
- register char *sp asm ("sp"); \
- if (sp - sizeof(struct intctx) - sizeof(Thread) < (char *)_otp) \
- asm volatile ("mov r0, #0 \n\t" \
- "ldr r1, =chDbgPanic \n\t" \
- "bx r1"); \
- _port_switch_thumb(_otp, _ntp); \
-}
-#else /* !CH_DBG_ENABLE_STACK_CHECK */
-#define port_switch(otp, ntp) _port_switch_thumb(otp, ntp)
-#endif /* !CH_DBG_ENABLE_STACK_CHECK */
-#else /* !THUMB */
-#if CH_DBG_ENABLE_STACK_CHECK
-#define port_switch(otp, ntp) { \
- register Thread *_otp asm ("r0") = (otp); \
- register Thread *_ntp asm ("r1") = (ntp); \
- register char *sp asm ("sp"); \
- if (sp - sizeof(struct intctx) - sizeof(Thread) < (char *)_otp) \
- asm volatile ("mov r0, #0 \n\t" \
- "b chDbgPanic"); \
- _port_switch_arm(_otp, _ntp); \
-}
-#else /* !CH_DBG_ENABLE_STACK_CHECK */
-#define port_switch(otp, ntp) _port_switch_arm(otp, ntp)
-#endif /* !CH_DBG_ENABLE_STACK_CHECK */
-#endif /* !THUMB */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
- void port_halt(void);
-#ifdef THUMB
- void _port_switch_thumb(Thread *otp, Thread *ntp);
-#else /* !THUMB */
- void _port_switch_arm(Thread *otp, Thread *ntp);
-#endif /* !THUMB */
- void _port_thread_start(void);
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _CHCORE_H_ */
-
-/** @} */
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