void __init prom_init(void)
{
PSYSTEM_PARAMETER_BLOCK pb = PROMBLOCK;
romvec = ROMVECTOR;
prom_argc = fw_arg0;
_prom_argv = (LONG *) fw_arg1;
_prom_envp = (LONG *) fw_arg2;
if (pb->magic != 0x53435241) {
prom_printf("Aieee, bad prom vector magic %08lx\n", pb->magic);
while(1)
;
}
prom_init_cmdline();
prom_identify_arch();
printk(KERN_INFO "PROMLIB: ARC firmware Version %d Revision %d\n",
pb->ver, pb->rev);
prom_meminit();
#ifdef DEBUG_PROM_INIT
prom_printf("Press a key to reboot\n");
prom_getchar();
ArcEnterInteractiveMode();
#endif
}
int
goany(void)
{
prom_printf("Type any key to continue ");
(void) prom_getchar();
prom_printf("\n");
return (1);
}
/*
* PROM console input putchar.
*/
int
prom_cngetc(dev_t dev)
{
int s, c;
s = splhigh();
c = prom_getchar();
splx(s);
return (c);
}
void indy_8254timer_irq(void)
{
int cpu = smp_processor_id();
int irq = 4;
irq_enter(cpu);
kstat.irqs[0][irq]++;
printk("indy_8254timer_irq: Whoops, should not have gotten this IRQ\n");
prom_getchar();
prom_imode();
irq_exit(cpu);
}
void __init prom_init(int argc, char **argv, char **envp, int *prom_vec)
{
struct linux_promblock *pb;
romvec = ROMVECTOR;
pb = sgi_pblock = PROMBLOCK;
prom_argc = argc;
prom_argv = argv;
prom_envp = envp;
#if 0
/* arc_printf should not use prom_printf as soon as we free
* the prom buffers - This horribly breaks on Indys with framebuffer
* as it simply stops after initialising swap - On the Indigo2 serial
* console you will get A LOT illegal instructions - Only enable
* this for early init crashes - This also brings up artefacts of
* printing everything twice on serial console and on GFX Console
* this has the effect of having the prom printing everything
* in the small rectangle and the kernel printing around.
*/
arc_setup_console();
#endif
if (pb->magic != 0x53435241) {
prom_printf("Aieee, bad prom vector magic %08lx\n", pb->magic);
while(1)
;
}
prom_init_cmdline();
prom_vers = pb->ver;
prom_rev = pb->rev;
prom_identify_arch();
printk("PROMLIB: ARC firmware Version %d Revision %d\n",
prom_vers, prom_rev);
prom_meminit();
#ifdef DEBUG_PROM_INIT
{
prom_printf("Press a key to reboot\n");
(void) prom_getchar();
romvec->imode();
}
#endif
}
static char *buffer_edit(char *buf, void (*func) (const char *p))
{
int len, c;
len = strlen(buf);
if (func)
prom_printf(buf);
else {
for (c = 0; c < len; c++)
prom_printf("*");
}
for (;;) {
c = prom_getchar();
if (c == -1)
break;
if (char_is_newline(c))
break;
if (char_is_tab(c) && func)
len = tabfunc(buf, len, func);
else if (char_is_backspace(c)) {
if (len > 0) {
--len;
buf[len] = 0;
prom_printf("\b \b");
}
} else {
c = char_to_ascii(c);
if (c && len < CMD_LENG - 2) {
buf[len] = c;
buf[len + 1] = 0;
if (func)
prom_printf(buf + len);
else
prom_printf("*");
len++;
}
}
}
buf[len] = 0;
return buf;
}
static int prom_console_wait_key(struct console *co)
{
return prom_getchar();
}
