1 files changed, 96 insertions, 0 deletions

diff --git a/arch/cris/arch-v32/kernel/vcs_hook.c b/arch/cris/arch-v32/kernel/vcs_hook.c
new file mode 100644
index 000000000000..64d71c54c22c
--- /dev/null
+++ b/arch/cris/arch-v32/kernel/vcs_hook.c
@@ -0,0 +1,96 @@
+// $Id: vcs_hook.c,v 1.2 2003/08/12 12:01:06 starvik Exp $
+//
+// 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]
+
+
+// ------------------------------------------------------------------ hook_call
+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
+  *((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;
+  for (i=1; str[i]; i++);         /* find null at end of string */
+  hook_call(hook_print_str, i, str);
+}
+
+// --------------------------------------------------------------- CPU_KICK_DOG
+void CPU_KICK_DOG(void) {
+  (void) hook_call( hook_kick_dog, 0 );
+}
+
+// ------------------------------------------------------- CPU_WATCHDOG_TIMEOUT
+void CPU_WATCHDOG_TIMEOUT( unsigned t ) {
+  (void) hook_call( hook_dog_timeout, 1, t );
+}