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/*
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/>.
*/
#ifndef _CHCORE_H_
#define _CHCORE_H_
#include <iomacros.h>
#include <msp430/common.h>
#define CH_ARCHITECTURE_MSP430
typedef void *regmsp;
/*
* Interrupt saved context.
*/
struct extctx {
regmsp r12;
regmsp r13;
regmsp r14;
regmsp r15;
regmsp sr;
regmsp pc;
};
/*
* System saved context.
*/
struct intctx {
regmsp r4;
regmsp r5;
regmsp r6;
regmsp r7;
regmsp r8;
regmsp r9;
regmsp r10;
regmsp r11;
regmsp sr;
regmsp pc;
};
typedef struct {
struct intctx *sp;
} Context;
#define SETUP_CONTEXT(workspace, wsize, pf, arg) { \
tp->p_ctx.sp = (struct intctx *)((uint8_t *)workspace + \
wsize - \
sizeof(struct intctx)); \
tp->p_ctx.sp->r10 = pf; \
tp->p_ctx.sp->r11 = arg; \
tp->p_ctx.sp->sr = (regmsp)GIE; \
tp->p_ctx.sp->pc = threadstart; \
}
#define IDLE_THREAD_STACK_SIZE 0
#define INT_REQUIRED_STACK 16
#define StackAlign(n) ((((n) - 1) | 1) + 1)
#define UserStackSize(n) StackAlign(sizeof(Thread) + \
sizeof(struct intctx) + \
sizeof(struct extctx) + \
(n) + (INT_REQUIRED_STACK))
#define WorkingArea(s, n) uint16_t s[UserStackSize(n >> 1)];
#define chSysLock() asm volatile ("dint")
#define chSysUnlock() asm volatile ("eint")
#define chSysIRQEnterI()
#define chSysIRQExitI() { \
if (chSchRescRequiredI()) \
chSchDoRescheduleI(); \
}
#ifdef __cplusplus
extern "C" {
#endif
void _IdleThread(void *p);
void chSysHalt(void);
void chSysSwitchI(Thread *otp, Thread *ntp);
void chSysPuts(char *msg);
void threadstart(void);
#ifdef __cplusplus
}
#endif
#endif /* _CHCORE_H_ */
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