97 lines
2.3 KiB
C
97 lines
2.3 KiB
C
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// $Id: vcs_hook.c,v 1.2 2003/08/12 12:01:06 starvik Exp $
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//
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// Call simulator hook. This is the part running in the
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// simulated program.
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//
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#include "vcs_hook.h"
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#include <stdarg.h>
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#include <asm/arch-v32/hwregs/reg_map.h>
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#include <asm/arch-v32/hwregs/intr_vect_defs.h>
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#define HOOK_TRIG_ADDR 0xb7000000 /* hook cvlog model reg address */
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#define HOOK_MEM_BASE_ADDR 0xa0000000 /* csp4 (shared mem) base addr */
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#define HOOK_DATA(offset) ((unsigned*) HOOK_MEM_BASE_ADDR)[offset]
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#define VHOOK_DATA(offset) ((volatile unsigned*) HOOK_MEM_BASE_ADDR)[offset]
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#define HOOK_TRIG(funcid) do { *((unsigned *) HOOK_TRIG_ADDR) = funcid; } while(0)
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#define HOOK_DATA_BYTE(offset) ((unsigned char*) HOOK_MEM_BASE_ADDR)[offset]
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// ------------------------------------------------------------------ hook_call
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int hook_call( unsigned id, unsigned pcnt, ...) {
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va_list ap;
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unsigned i;
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unsigned ret;
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#ifdef USING_SOS
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PREEMPT_OFF_SAVE();
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#endif
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// pass parameters
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HOOK_DATA(0) = id;
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/* Have to make hook_print_str a special case since we call with a
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parameter of byte type. Should perhaps be a separate
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hook_call. */
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if (id == hook_print_str) {
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int i;
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char *str;
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HOOK_DATA(1) = pcnt;
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va_start(ap, pcnt);
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str = (char*)va_arg(ap,unsigned);
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for (i=0; i!=pcnt; i++) {
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HOOK_DATA_BYTE(8+i) = str[i];
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}
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HOOK_DATA_BYTE(8+i) = 0; /* null byte */
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}
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else {
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va_start(ap, pcnt);
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for( i = 1; i <= pcnt; i++ ) HOOK_DATA(i) = va_arg(ap,unsigned);
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va_end(ap);
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}
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// read from mem to make sure data has propagated to memory before trigging
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*((volatile unsigned*) HOOK_MEM_BASE_ADDR);
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// trigger hook
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HOOK_TRIG(id);
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// wait for call to finish
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while( VHOOK_DATA(0) > 0 ) {}
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// extract return value
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ret = VHOOK_DATA(1);
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#ifdef USING_SOS
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PREEMPT_RESTORE();
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#endif
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return ret;
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}
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unsigned
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hook_buf(unsigned i)
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{
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return (HOOK_DATA(i));
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}
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void print_str( const char *str ) {
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int i;
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for (i=1; str[i]; i++); /* find null at end of string */
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hook_call(hook_print_str, i, str);
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}
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// --------------------------------------------------------------- CPU_KICK_DOG
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void CPU_KICK_DOG(void) {
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(void) hook_call( hook_kick_dog, 0 );
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}
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// ------------------------------------------------------- CPU_WATCHDOG_TIMEOUT
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void CPU_WATCHDOG_TIMEOUT( unsigned t ) {
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(void) hook_call( hook_dog_timeout, 1, t );
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}
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