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Diffstat (limited to 'ports/AVR/chcore.h')
| -rw-r--r-- | ports/AVR/chcore.h | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/ports/AVR/chcore.h b/ports/AVR/chcore.h deleted file mode 100644 index c70c5307e..000000000 --- a/ports/AVR/chcore.h +++ /dev/null @@ -1,267 +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/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 enabled allows the idle thread to enter a low power mode.
- */
-#ifndef ENABLE_WFI_IDLE
-#define ENABLE_WFI_IDLE 0
-#endif
-
-/**
- * Macro defining the AVR architecture.
- */
-#define CH_ARCHITECTURE_AVR
-
-/**
- * Name of the implemented architecture.
- */
-#define CH_ARCHITECTURE_NAME "AVR"
-
-/**
- * 8 bit stack alignment.
- */
-typedef uint8_t stkalign_t;
-
-/** @cond never */
-/**
- * Interrupt saved context.
- * @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;
-};
-/** @endcond */
-
-/** @cond never */
-/**
- * System saved context.
- * @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;
-#ifndef CH_CURRP_REGISTER_CACHE
- uint8_t r9;
- uint8_t r8;
-#endif
- uint8_t r7;
- uint8_t r6;
- uint8_t r5;
- uint8_t r4;
- uint8_t r3;
- uint8_t r2;
- uint8_t pcl;
- uint8_t pch;
-};
-/** @endcond */
-
-/** @cond never */
-/**
- * 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;
-};
-/** @endcond */
-
-/**
- * Platform dependent part of the @p chThdInit() API.
- * This code usually setup the context switching frame represented by a
- * @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)threadstart >> 8; \
- tp->p_ctx.sp->pch = (int)threadstart; \
-}
-
-/**
- * The default idle thread implementation requires no extra stack space in
- * this port.
- */
-#ifndef IDLE_THREAD_STACK_SIZE
-#define IDLE_THREAD_STACK_SIZE 8
-#endif
-
-/**
- * Per-thread stack overhead for interrupts servicing, it is used in the
- * calculation of the correct working area size. In this port the default is
- * 32 bytes per thread.
- */
-#ifndef INT_REQUIRED_STACK
-#define INT_REQUIRED_STACK 32
-#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) - 1) + \
- (sizeof(struct extctx) - 1) + \
- (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.
- * 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"); \
-}
-
-/**
- * IRQ epilogue code, inserted at the end of all IRQ handlers enabled to
- * invoke system APIs.
- */
-#define PORT_IRQ_EPILOGUE() { \
- if (chSchRescRequiredI()) \
- chSchDoRescheduleI(); \
-}
-
-/**
- * IRQ handler function declaration. Note, it just aliases the WinAVR "ISR"
- * macro. - */
-#define PORT_IRQ_HANDLER(id) ISR(id)
-
-/**
- * This function is empty in this port.
- */
-#define port_init()
-
-/**
- * Implemented as global interrupt disable.
- */
-#define port_lock() asm volatile ("cli")
-
-/**
- * Implemented as global interrupt enable.
- */
-#define port_unlock() asm volatile ("sei")
-
-/**
- * This function is empty in this port.
- */
-#define port_lock_from_isr()
-
-/**
- * This function is empty in this port.
- */
-#define port_unlock_from_isr()
-
-/**
- * Implemented as global interrupt disable.
- */
-#define port_disable() asm volatile ("cli")
-
-/**
- * Same as @p port_disable() in this port, there is no difference between the
- * two states.
- */
-#define port_suspend() asm volatile ("cli")
-
-/**
- * Implemented as global interrupt enable.
- */
-#define port_enable() asm volatile ("sei")
-
-/**
- * This port function is implemented as inlined code for performance reasons.
- */
-#if ENABLE_WFI_IDLE != 0
-#define port_wait_for_interrupt() { \
- asm volatile ("sleep"); \
-}
-#else
-#define port_wait_for_interrupt()
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
- void port_switch(Thread *otp, Thread *ntp);
- void port_halt(void);
- void threadstart(void);
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _CHCORE_H_ */
-
-/** @} */
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