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cleanup danube watchdog timer

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SVN-Revision: 9729
This commit is contained in:
John Crispin 2007-12-13 19:55:14 +00:00
parent 9e85885aea
commit 0e17a20d79
1 changed files with 18 additions and 27 deletions
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45
target/linux/danube/files/drivers/char/watchdog/danube_wdt.c
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@ -110,7 +110,7 @@ danube_wdt_disable (void)
/* passed LPEN or DSEN */
void
danube_wdt_low_power_or_debug (int en, int type)
danube_wdt_enable_feature (int en, int type)
{
unsigned int wdt_cr = 0;
@ -168,28 +168,27 @@ danube_wdt_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg)
{
int result = 0;
int en = 0;
int istatus;
int pwl, clkdiv;
static int timeout = -1;
unsigned int user_arg;
if ((cmd != DANUBE_WDT_IOC_STOP) && (cmd != DANUBE_WDT_IOC_PING) && (cmd != DANUBE_WDT_IOC_GET_STATUS))
{
if (copy_from_user((void *) &user_arg, (void *) arg, sizeof (int)))
result = -EINVAL;
}
switch (cmd)
{
case DANUBE_WDT_IOC_START:
printk("enable watch dog timer!\n");
if (copy_from_user((void *) &timeout, (void *) arg, sizeof (int)))
{
printk ("invalid argument\n");
result = -EINVAL;
} else {
if ((result = danube_wdt_enable (timeout)) < 0)
timeout = -1;
}
if ((result = danube_wdt_enable(user_arg)) < 0)
timeout = -1;
else
timeout = user_arg;
break;
case DANUBE_WDT_IOC_STOP:
printk("disable watch dog timer\n");
timeout = -1;
danube_wdt_disable();
break;
@ -201,32 +200,24 @@ danube_wdt_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
break;
case DANUBE_WDT_IOC_GET_STATUS:
istatus = readl(DANUBE_BIU_WDT_SR);
copy_to_user((int *) arg, (int *) &istatus, sizeof (int));
user_arg = readl(DANUBE_BIU_WDT_SR);
copy_to_user((int*)arg, (int*)&user_arg, sizeof(int));
break;
case DANUBE_WDT_IOC_SET_PWL:
if (copy_from_user((void *) &pwl, (void *) arg, sizeof (int)))
result = -EINVAL;
danube_wdt_prewarning_limit(pwl);
danube_wdt_prewarning_limit(user_arg);
break;
case DANUBE_WDT_IOC_SET_DSEN:
if (copy_from_user((void *) &en, (void *) arg, sizeof (int)))
result = -EINVAL;
danube_wdt_low_power_or_debug(en, DANUBE_BIU_WDT_CR_DSEN);
danube_wdt_enable_feature(user_arg, DANUBE_BIU_WDT_CR_DSEN);
break;
case DANUBE_WDT_IOC_SET_LPEN:
if (copy_from_user((void *) &en, (void *) arg, sizeof (int)))
result = -EINVAL;
danube_wdt_low_power_or_debug(en, DANUBE_BIU_WDT_CR_LPEN);
danube_wdt_enable_feature(user_arg, DANUBE_BIU_WDT_CR_LPEN);
break;
case DANUBE_WDT_IOC_SET_CLKDIV:
if (copy_from_user((void *) &clkdiv, (void *) arg, sizeof (int)))
result = -EINVAL;
danube_wdt_set_clkdiv(clkdiv);
danube_wdt_set_clkdiv(user_arg);
break;
}