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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_
/*
* The following values are implementation dependent. You may change them in
* order to match your HW.
*/
#define FOSC 12000000
#define CCLK 48000000
#define PCLK 12000000
typedef void *regarm;
/*
* Interrupt saved context.
*/
struct extctx {
regarm spsr_irq;
regarm lr_irq;
regarm r0;
regarm r1;
regarm r2;
regarm r3;
regarm r12;
};
/*
* System saved context.
*/
struct intctx {
regarm r4;
regarm r5;
regarm r6;
#ifndef CH_CURRP_REGISTER_CACHE
regarm r7;
#endif
regarm r8;
regarm r9;
regarm r10;
regarm r11;
regarm lr;
};
/*
* Port dependent part of the Thread structure, you may add fields in
* this structure.
*/
typedef struct {
struct intctx *r13;
} Context;
/*
* Platform dependent part of the \p chThdCreate() API.
*/
#define SETUP_CONTEXT(workspace, wsize, pf, arg) { \
tp->p_ctx.r13 = (struct intctx *)((BYTE8 *)workspace + \
wsize - \
sizeof(struct intctx)); \
tp->p_ctx.r13->r4 = pf; \
tp->p_ctx.r13->r5 = arg; \
tp->p_ctx.r13->lr = threadstart; \
}
#ifdef THUMB
extern void chSysLock(void);
extern void chSysUnlock(void);
#else /* !THUMB */
#define chSysLock() asm("msr CPSR_c, #0x9F")
#define chSysUnlock() asm("msr CPSR_c, #0x1F")
#endif /* THUMB */
#define chSysPuts(msg) {}
#ifdef THUMB
#define INT_REQUIRED_STACK 0x10
#else /* !THUMB */
#define INT_REQUIRED_STACK 0
#endif /* THUMB */
#define UserStackSize(n) (sizeof(Thread) + \
sizeof(struct intctx) + \
sizeof(struct extctx) + \
(INT_REQUIRED_STACK) + \
(n))
/* It requires zero bytes, but better be safe.*/
#define IDLE_THREAD_STACK_SIZE 8
void _IdleThread(void *p) __attribute__((noreturn));
void chSysHalt(void) __attribute__((noreturn));
void chSysSwitchI(Context *oldp, Context *newp);
void threadstart(void);
void DefFiqHandler(void);
void DefIrqHandler(void);
void SpuriousHandler(void);
#endif /* _CHCORE_H_ */
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