1 files changed, 100 insertions, 0 deletions
diff --git a/arch/cris/arch-v32/mach-fs/vcs_hook.c b/arch/cris/arch-v32/mach-fs/vcs_hook.c
new file mode 100644
index 0000000..593b10f
--- /dev/null
+++ b/arch/cris/arch-v32/mach-fs/vcs_hook.c
@@ -0,0 +1,100 @@
+/*
+ * Call simulator hook. This is the part running in the
+ * simulated program.
+ */
+
+#include "vcs_hook.h"
+#include <stdarg.h>
+#include <asm/arch-v32/hwregs/reg_map.h>
+#include <asm/arch-v32/hwregs/intr_vect_defs.h>
+
+#define HOOK_TRIG_ADDR     0xb7000000	/* hook cvlog model reg address */
+#define HOOK_MEM_BASE_ADDR 0xa0000000	/* csp4 (shared mem) base addr */
+
+#define HOOK_DATA(offset) ((unsigned *)HOOK_MEM_BASE_ADDR)[offset]
+#define VHOOK_DATA(offset) ((volatile unsigned *)HOOK_MEM_BASE_ADDR)[offset]
+#define HOOK_TRIG(funcid) \
+	do { \
+		*((unsigned *) HOOK_TRIG_ADDR) = funcid; \
+	} while (0)
+#define HOOK_DATA_BYTE(offset) ((unsigned char *)HOOK_MEM_BASE_ADDR)[offset]
+
+int hook_call(unsigned id, unsigned pcnt, ...)
+{
+	va_list ap;
+	unsigned i;
+	unsigned ret;
+#ifdef USING_SOS
+	PREEMPT_OFF_SAVE();
+#endif
+
+	/* pass parameters */
+	HOOK_DATA(0) = id;
+
+	/* Have to make hook_print_str a special case since we call with a
+	 * parameter of byte type. Should perhaps be a separate
+	 * hook_call. */
+
+	if (id == hook_print_str) {
+		int i;
+		char *str;
+
+		HOOK_DATA(1) = pcnt;
+
+		va_start(ap, pcnt);
+		str = (char *)va_arg(ap, unsigned);
+
+		for (i = 0; i != pcnt; i++)
+			HOOK_DATA_BYTE(8 + i) = str[i];
+
+		HOOK_DATA_BYTE(8 + i) = 0;	/* null byte */
+	} else {
+		va_start(ap, pcnt);
+		for (i = 1; i <= pcnt; i++)
+			HOOK_DATA(i) = va_arg(ap, unsigned);
+		va_end(ap);
+	}
+
+	/* read from mem to make sure data has propagated to memory before
+	 * trigging */
+	ret = *((volatile unsigned *)HOOK_MEM_BASE_ADDR);
+
+	/* trigger hook */
+	HOOK_TRIG(id);
+
+	/* wait for call to finish */
+	while (VHOOK_DATA(0) > 0) ;
+
+	/* extract return value */
+
+	ret = VHOOK_DATA(1);
+
+#ifdef USING_SOS
+	PREEMPT_RESTORE();
+#endif
+	return ret;
+}
+
+unsigned hook_buf(unsigned i)
+{
+	return (HOOK_DATA(i));
+}
+
+void print_str(const char *str)
+{
+	int i;
+	/* find null at end of string */
+	for (i = 1; str[i]; i++) ;
+	hook_call(hook_print_str, i, str);
+}
+
+void CPU_KICK_DOG(void)
+{
+	(void)hook_call(hook_kick_dog, 0);
+}
+
+void CPU_WATCHDOG_TIMEOUT(unsigned t)
+{
+	(void)hook_call(hook_dog_timeout, 1, t);
+}
+