|
|
|
@ -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) |
|
|
|
|
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; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|