/* tyan motherboards seem to set F5 to 0x4C ?
* So explicitly init to appropriate value. */
static void
w83627hf_init(void)
{
unsigned char t;
w83627hf_select_wd_register();
outb_p(0xF6, WDT_EFER); /* Select CRF6 */
t=inb_p(WDT_EFDR); /* read CRF6 */
if (t != 0) {
printk (KERN_INFO PFX "Watchdog already running. Resetting timeout to %d sec\n", timeout);
outb_p(timeout, WDT_EFDR); /* Write back to CRF6 */
}
outb_p(0xF5, WDT_EFER); /* Select CRF5 */
t=inb_p(WDT_EFDR); /* read CRF5 */
t&=~0x0C; /* set second mode & disable keyboard turning off watchdog */
outb_p(t, WDT_EFDR); /* Write back to CRF5 */
outb_p(0xF7, WDT_EFER); /* Select CRF7 */
t=inb_p(WDT_EFDR); /* read CRF7 */
t&=~0xC0; /* disable keyboard & mouse turning off watchdog */
outb_p(t, WDT_EFDR); /* Write back to CRF7 */
w83627hf_unselect_wd_register();
}
static void w83627hf_init(void)
{
unsigned char t;
w83627hf_select_wd_register();
outb_p(0xF6, WDT_EFER);
t = inb_p(WDT_EFDR);
if (t != 0) {
printk(KERN_INFO PFX
"Watchdog already running. Resetting timeout to %d sec\n",
timeout);
outb_p(timeout, WDT_EFDR);
}
outb_p(0xF5, WDT_EFER);
t = inb_p(WDT_EFDR);
t &= ~0x0C;
outb_p(t, WDT_EFDR);
outb_p(0xF7, WDT_EFER);
t = inb_p(WDT_EFDR);
t &= ~0xC0;
outb_p(t, WDT_EFDR);
w83627hf_unselect_wd_register();
}
static int wdt_readproc(char *page, char **start, off_t off, int count,
int *eof, void *data)
{
int len;
unsigned char remaining;
unsigned char fired;
spin_lock(&io_lock);
w83627hf_select_wd_register();
outb_p(0xF6, WDT_EFIR);/* get current timer val */
remaining=inb_p(WDT_EFDR);
outb_p(0xF7, WDT_EFIR);
fired=inb_p(WDT_EFDR);
/* clear that bit (bit 4) */
outb_p(fired&(~0x10),WDT_EFDR);
w83627hf_unselect_wd_register();
spin_unlock(&io_lock);
fired=(fired&0x10)!=0;
len=snprintf(page,PAGE_SIZE,
"W83627HF WDT\n"
"active=%d\n"
"iobase=%04X\n"
"nowayout=%d\n"
"timeout=%d\n"
"remaining=%d\n"
"fired=%d\n",
wdt_is_open,wdt_io,nowayout,timeout,remaining,fired);
*eof=1;
return len;
}
static void w83627hf_init(void)
{
unsigned char t;
w83627hf_select_wd_register();
outb_p(0xF6, WDT_EFER); /* Select CRF6 */
t = inb_p(WDT_EFDR); /* read CRF6 */
if (t != 0) {
pr_info("Watchdog already running. Resetting timeout to %d sec\n",
timeout);
outb_p(timeout, WDT_EFDR); /* Write back to CRF6 */
}
outb_p(0xF5, WDT_EFER); /* Select CRF5 */
t = inb_p(WDT_EFDR); /* read CRF5 */
t &= ~0x0C; /* set second mode & disable keyboard
turning off watchdog */
t |= 0x02; /* enable the WDTO# output low pulse
to the KBRST# pin (PIN60) */
outb_p(t, WDT_EFDR); /* Write back to CRF5 */
outb_p(0xF7, WDT_EFER); /* Select CRF7 */
t = inb_p(WDT_EFDR); /* read CRF7 */
t &= ~0xC0; /* disable keyboard & mouse turning off
watchdog */
outb_p(t, WDT_EFDR); /* Write back to CRF7 */
w83627hf_unselect_wd_register();
}
static void
wdt_ctrl(int timeout)
{
w83627hf_select_wd_register();
outb_p(0xF6, WDT_EFER); /* Select CRF6 */
outb_p(timeout, WDT_EFDR); /* Write Timeout counter to CRF6 */
w83627hf_unselect_wd_register();
}
static void wdt_ctrl(int timeout)
{
spin_lock(&io_lock);
w83627hf_select_wd_register();
outb_p(0xF6, WDT_EFER);
outb_p(timeout, WDT_EFDR);
w83627hf_unselect_wd_register();
spin_unlock(&io_lock);
}
static void wdt_set_time(int timeout)
{
spin_lock(&io_lock);
w83627hf_select_wd_register();
outb_p(0xF6, WDT_EFER); /* Select CRF6 */
outb_p(timeout, WDT_EFDR); /* Write Timeout counter to CRF6 */
w83627hf_unselect_wd_register();
spin_unlock(&io_lock);
}
/* tyan motherboards seem to set F5 to 0x4C ?
* So explicitly init to appropriate value. */
static void
w83627hf_init(void)
{
unsigned char t;
w83627hf_select_wd_register();
outb_p(0xF6, WDT_EFER); /* Select CRF6 */
outb_p(0, WDT_EFDR); /* set to 0 initially */
outb_p(0xF5, WDT_EFER); /* Select CRF5 */
t=inb_p(WDT_EFDR); /* read CRF5 */
t&=~0x0C; /* set second mode & disable keyboard turning off watchdog */
outb_p(t, WDT_EFDR); /* Write back to CRF5 */
w83627hf_unselect_wd_register();
}
static int wdt_get_time(void)
{
int timeleft;
spin_lock(&io_lock);
w83627hf_select_wd_register();
outb_p(0xF6, WDT_EFER); /* Select CRF6 */
timeleft = inb_p(WDT_EFDR); /* Read Timeout counter to CRF6 */
w83627hf_unselect_wd_register();
spin_unlock(&io_lock);
return timeleft;
}
