diff options
Diffstat (limited to 'demos/LPC214x-GCC/chcore.h')
| -rw-r--r-- | demos/LPC214x-GCC/chcore.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/demos/LPC214x-GCC/chcore.h b/demos/LPC214x-GCC/chcore.h new file mode 100644 index 000000000..6dfdae6e9 --- /dev/null +++ b/demos/LPC214x-GCC/chcore.h @@ -0,0 +1,98 @@ +/*
+ 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_
+
+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
+
+#define chSysLock() asm("msr CPSR_c, #0x9F")
+
+#define chSysUnlock() asm("msr CPSR_c, #0x1F")
+
+#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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