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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;
/*
* Stack saved context.
*/
struct stackregs {
regarm r4;
regarm r5;
regarm r6;
#ifndef MK_CURRP_REGISTER_CACHE
regarm r7;
#endif
regarm r8;
regarm r9;
regarm r10;
regarm r11;
regarm lr;
};
typedef struct {
struct stackregs *r13;
} Context;
#ifdef MK_CURRP_REGISTER_CACHE
#define SETUP_CONTEXT(workspace, wsize, pf, arg) \
{ \
tp->p_ctx.r13 = (struct stackregs *)((BYTE8 *)workspace + \
wsize - \
sizeof(struct stackregs)); \
tp->p_ctx.r13->r4 = pf; \
tp->p_ctx.r13->r5 = arg; \
tp->p_ctx.r13->r6 = 0; \
tp->p_ctx.r13->r8 = 0; \
tp->p_ctx.r13->r9 = 0; \
tp->p_ctx.r13->r10 = 0; \
tp->p_ctx.r13->r11 = 0; \
tp->p_ctx.r13->lr = threadstart; \
}
#else
#define SETUP_CONTEXT(workspace, wsize, pf, arg) \
{ \
tp->p_ctx.r13 = (struct stackregs *)((BYTE8 *)workspace + \
wsize - \
sizeof(struct stackregs)); \
tp->p_ctx.r13->r4 = pf; \
tp->p_ctx.r13->r5 = arg; \
tp->p_ctx.r13->r6 = 0; \
tp->p_ctx.r13->r7 = 0; \
tp->p_ctx.r13->r8 = 0; \
tp->p_ctx.r13->r9 = 0; \
tp->p_ctx.r13->r10 = 0; \
tp->p_ctx.r13->r11 = 0; \
tp->p_ctx.r13->lr = threadstart; \
}
#endif
#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 INT_REQUIRED_STACK 0x40 // Must include registers and stack frames.
#define UserStackSize(n) (sizeof(Thread) + \
sizeof(struct stackregs) + (n) + (INT_REQUIRED_STACK))
void chSysHalt(void) __attribute__((noreturn));
void chSysPause(void);
void chSysSwitchI(Context *oldp, Context *newp);
void threadstart(void);
void DefFiqHandler(void);
void DefIrqHandler(void);
void SpuriousHandler(void);
void SetVICVector(void *handler, int vector, int source);
#endif /* _CHCORE_H_ */
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