111 lines
3.9 KiB
C
111 lines
3.9 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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/*
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* The following values are implementation dependent. You may change them in
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* order to match your HW.
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*/
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#define FOSC 12000000
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#define CCLK 48000000
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#define PCLK 12000000
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typedef void *regarm;
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/*
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* Stack saved context.
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*/
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struct stackregs {
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regarm r4;
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regarm r5;
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regarm r6;
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#ifndef MK_CURRP_REGISTER_CACHE
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regarm r7;
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#endif
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regarm r8;
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regarm r9;
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regarm r10;
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regarm r11;
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regarm lr;
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};
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typedef struct {
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struct stackregs *r13;
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} Context;
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#ifdef MK_CURRP_REGISTER_CACHE
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#define SETUP_CONTEXT(workspace, wsize, pf, arg) \
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{ \
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tp->p_ctx.r13 = (struct stackregs *)((BYTE8 *)workspace + \
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wsize - \
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sizeof(struct stackregs)); \
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tp->p_ctx.r13->r4 = pf; \
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tp->p_ctx.r13->r5 = arg; \
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tp->p_ctx.r13->r6 = 0; \
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tp->p_ctx.r13->r8 = 0; \
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tp->p_ctx.r13->r9 = 0; \
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tp->p_ctx.r13->r10 = 0; \
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tp->p_ctx.r13->r11 = 0; \
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tp->p_ctx.r13->lr = threadstart; \
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}
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#else
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#define SETUP_CONTEXT(workspace, wsize, pf, arg) \
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{ \
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tp->p_ctx.r13 = (struct stackregs *)((BYTE8 *)workspace + \
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wsize - \
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sizeof(struct stackregs)); \
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tp->p_ctx.r13->r4 = pf; \
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tp->p_ctx.r13->r5 = arg; \
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tp->p_ctx.r13->r6 = 0; \
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tp->p_ctx.r13->r7 = 0; \
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tp->p_ctx.r13->r8 = 0; \
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tp->p_ctx.r13->r9 = 0; \
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tp->p_ctx.r13->r10 = 0; \
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tp->p_ctx.r13->r11 = 0; \
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tp->p_ctx.r13->lr = threadstart; \
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}
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#endif
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#ifdef THUMB
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extern void chSysLock(void);
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extern void chSysUnlock(void);
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#else /* !THUMB */
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#define chSysLock() asm("msr CPSR_c, #0x9F")
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#define chSysUnlock() asm("msr CPSR_c, #0x1F")
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#endif /* THUMB */
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#define INT_REQUIRED_STACK 0x40 // Must include registers and stack frames.
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#define UserStackSize(n) (sizeof(Thread) + \
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sizeof(struct stackregs) + (n) + (INT_REQUIRED_STACK))
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void chSysHalt(void) __attribute__((noreturn));
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void chSysPause(void) __attribute__((noreturn));
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void chSysSwitchI(Context *oldp, Context *newp);
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void threadstart(void);
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void DefFiqHandler(void);
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void DefIrqHandler(void);
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void SpuriousHandler(void);
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void SetVICVector(void *handler, int vector, int source);
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#endif /* _CHCORE_H_ */
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