105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _CHCORE_H_
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#define _CHCORE_H_
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#include <iomacros.h>
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#include <msp430/common.h>
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#define CH_ARCHITECTURE_MSP430
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typedef void *regmsp;
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/*
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* Interrupt saved context.
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*/
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struct extctx {
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regmsp r12;
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regmsp r13;
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regmsp r14;
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regmsp r15;
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regmsp sr;
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regmsp pc;
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};
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/*
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* System saved context.
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*/
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struct intctx {
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regmsp r4;
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regmsp r5;
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regmsp r6;
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regmsp r7;
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regmsp r8;
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regmsp r9;
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regmsp r10;
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regmsp r11;
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regmsp sr;
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regmsp pc;
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};
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typedef struct {
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struct intctx *sp;
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} Context;
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#define SETUP_CONTEXT(workspace, wsize, pf, arg) { \
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tp->p_ctx.sp = (struct intctx *)((uint8_t *)workspace + \
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wsize - \
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sizeof(struct intctx)); \
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tp->p_ctx.sp->r10 = pf; \
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tp->p_ctx.sp->r11 = arg; \
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tp->p_ctx.sp->sr = (regmsp)GIE; \
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tp->p_ctx.sp->pc = threadstart; \
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}
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#define IDLE_THREAD_STACK_SIZE 0
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#define INT_REQUIRED_STACK 16
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#define StackAlign(n) ((((n) - 1) | 1) + 1)
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#define UserStackSize(n) StackAlign(sizeof(Thread) + \
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sizeof(struct intctx) + \
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sizeof(struct extctx) + \
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(n) + (INT_REQUIRED_STACK))
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#define WorkingArea(s, n) uint16_t s[UserStackSize(n >> 1)];
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#define chSysLock() asm volatile ("dint")
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#define chSysUnlock() asm volatile ("eint")
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#define chSysEnable() asm volatile ("eint")
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#define chSysIRQEnterI()
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#define chSysIRQExitI() { \
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if (chSchRescRequiredI()) \
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chSchDoRescheduleI(); \
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}
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#ifdef __cplusplus
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extern "C" {
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#endif
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void _IdleThread(void *p);
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void chSysHalt(void);
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void chSysSwitchI(Thread *otp, Thread *ntp);
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void chSysPuts(char *msg);
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void threadstart(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _CHCORE_H_ */
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