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Code

cleanup danube watchdog timer

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9729 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
blogic 2007-12-13 19:55:14 +00:00
parent bb4717095c
commit e68c9c6464
1 changed files with 18 additions and 27 deletions
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43
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 */ /* passed LPEN or DSEN */
void void
danube_wdt_low_power_or_debug (int en, int type) danube_wdt_enable_feature (int en, int type)
{ {
unsigned int wdt_cr = 0; unsigned int wdt_cr = 0;
@ -168,28 +168,27 @@ danube_wdt_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg) unsigned long arg)
{ {
int result = 0; int result = 0;
int en = 0;
int istatus;
int pwl, clkdiv;
static int timeout = -1; 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) switch (cmd)
{ {
case DANUBE_WDT_IOC_START: case DANUBE_WDT_IOC_START:
printk("enable watch dog timer!\n"); printk("enable watch dog timer!\n");
if (copy_from_user((void *) &timeout, (void *) arg, sizeof (int))) if ((result = danube_wdt_enable(user_arg)) < 0)
{
printk ("invalid argument\n");
result = -EINVAL;
} else {
if ((result = danube_wdt_enable (timeout)) < 0)
timeout = -1; timeout = -1;
} else
timeout = user_arg;
break; break;
case DANUBE_WDT_IOC_STOP: case DANUBE_WDT_IOC_STOP:
printk("disable watch dog timer\n"); printk("disable watch dog timer\n");
timeout = -1;
danube_wdt_disable(); danube_wdt_disable();
break; break;
@ -201,32 +200,24 @@ danube_wdt_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
break; break;
case DANUBE_WDT_IOC_GET_STATUS: case DANUBE_WDT_IOC_GET_STATUS:
istatus = readl(DANUBE_BIU_WDT_SR); user_arg = readl(DANUBE_BIU_WDT_SR);
copy_to_user((int *) arg, (int *) &istatus, sizeof (int)); copy_to_user((int*)arg, (int*)&user_arg, sizeof(int));
break; break;
case DANUBE_WDT_IOC_SET_PWL: case DANUBE_WDT_IOC_SET_PWL:
if (copy_from_user((void *) &pwl, (void *) arg, sizeof (int))) danube_wdt_prewarning_limit(user_arg);
result = -EINVAL;
danube_wdt_prewarning_limit(pwl);
break; break;
case DANUBE_WDT_IOC_SET_DSEN: case DANUBE_WDT_IOC_SET_DSEN:
if (copy_from_user((void *) &en, (void *) arg, sizeof (int))) danube_wdt_enable_feature(user_arg, DANUBE_BIU_WDT_CR_DSEN);
result = -EINVAL;
danube_wdt_low_power_or_debug(en, DANUBE_BIU_WDT_CR_DSEN);
break; break;
case DANUBE_WDT_IOC_SET_LPEN: case DANUBE_WDT_IOC_SET_LPEN:
if (copy_from_user((void *) &en, (void *) arg, sizeof (int))) danube_wdt_enable_feature(user_arg, DANUBE_BIU_WDT_CR_LPEN);
result = -EINVAL;
danube_wdt_low_power_or_debug(en, DANUBE_BIU_WDT_CR_LPEN);
break; break;
case DANUBE_WDT_IOC_SET_CLKDIV: case DANUBE_WDT_IOC_SET_CLKDIV:
if (copy_from_user((void *) &clkdiv, (void *) arg, sizeof (int))) danube_wdt_set_clkdiv(user_arg);
result = -EINVAL;
danube_wdt_set_clkdiv(clkdiv);
break; break;
} }