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// $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 );
}
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