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/*
* Call simulator hook. This is the part running in the
* simulated program.
*/
#include "vcs_hook.h"
#include <stdarg.h>
#include <arch-v32/hwregs/reg_map.h>
#include <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);
}
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