static unsigned expect_close;
/* XXX currently fixed, allows max margin ~68.72 secs */
-#define prescale_value 0xFFFF
+#define prescale_value 0xffff
// Offset of the WDT registers
static unsigned long ar7_regs_wdt;
static ar7_wdt_t *ar7_wdt;
static void ar7_wdt_get_regs(void)
{
- u16 chip_id = ar7_chip_id();
- switch (chip_id)
- {
- case AR7_CHIP_7100:
- case AR7_CHIP_7200:
- ar7_regs_wdt = AR7_REGS_WDT;
- break;
- default:
- ar7_regs_wdt = UR8_REGS_WDT;
- break;
- }
+ u16 chip_id = ar7_chip_id();
+ switch (chip_id)
+ {
+ case AR7_CHIP_7100:
+ case AR7_CHIP_7200:
+ ar7_regs_wdt = AR7_REGS_WDT;
+ break;
+ default:
+ ar7_regs_wdt = UR8_REGS_WDT;
+ break;
+ }
}
-
+
static void ar7_wdt_kick(u32 value)
{
ar7_wdt->kick_lock = 0x5555;
if ((ar7_wdt->kick_lock & 3) == 1) {
- ar7_wdt->kick_lock = 0xAAAA;
+ ar7_wdt->kick_lock = 0xaaaa;
if ((ar7_wdt->kick_lock & 3) == 3) {
ar7_wdt->kick = value;
return;
}
- }
- printk(KERN_ERR DRVNAME ": failed to unlock WDT kick reg\n");
+ }
+ printk(KERN_ERR DRVNAME ": failed to unlock WDT kick reg\n");
}
static void ar7_wdt_prescale(u32 value)
{
- ar7_wdt->prescale_lock = 0x5A5A;
+ ar7_wdt->prescale_lock = 0x5a5a;
if ((ar7_wdt->prescale_lock & 3) == 1) {
- ar7_wdt->prescale_lock = 0xA5A5;
+ ar7_wdt->prescale_lock = 0xa5a5;
if ((ar7_wdt->prescale_lock & 3) == 3) {
ar7_wdt->prescale = value;
return;
{
ar7_wdt->change_lock = 0x6666;
if ((ar7_wdt->change_lock & 3) == 1) {
- ar7_wdt->change_lock = 0xBBBB;
+ ar7_wdt->change_lock = 0xbbbb;
if ((ar7_wdt->change_lock & 3) == 3) {
ar7_wdt->change = value;
return;
{
ar7_wdt->disable_lock = 0x7777;
if ((ar7_wdt->disable_lock & 3) == 1) {
- ar7_wdt->disable_lock = 0xCCCC;
+ ar7_wdt->disable_lock = 0xcccc;
if ((ar7_wdt->disable_lock & 3) == 2) {
- ar7_wdt->disable_lock = 0xDDDD;
+ ar7_wdt->disable_lock = 0xdddd;
if ((ar7_wdt->disable_lock & 3) == 3) {
ar7_wdt->disable = value;
return;
change = new_margin * (ar7_vbus_freq() / prescale_value);
if (change < 1) change = 1;
- if (change > 0xFFFF) change = 0xFFFF;
+ if (change > 0xffff) change = 0xffff;
ar7_wdt_change(change);
margin = change * prescale_value / ar7_vbus_freq();
printk(KERN_INFO DRVNAME
} else if (!nowayout) {
ar7_wdt_disable_wdt();
}
- up(&open_semaphore);
+ up(&open_semaphore);
return 0;
}
static int ar7_wdt_notify_sys(struct notifier_block *this,
- unsigned long code, void *unused)
+ unsigned long code, void *unused)
{
if (code == SYS_HALT || code == SYS_POWER_OFF)
if (!nowayout)
ar7_wdt_disable_wdt();
- return NOTIFY_DONE;
+ return NOTIFY_DONE;
}
static struct notifier_block ar7_wdt_notifier =
};
static ssize_t ar7_wdt_write(struct file *file, const char *data,
- size_t len, loff_t *ppos)
+ size_t len, loff_t *ppos)
{
if (ppos != &file->f_pos)
return -ESPIPE;
}
static int ar7_wdt_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+ unsigned int cmd, unsigned long arg)
{
static struct watchdog_info ident = {
.identity = LONGNAME,
int new_margin;
switch (cmd) {
- default:
- return -ENOTTY;
case WDIOC_GETSUPPORT:
if(copy_to_user((struct watchdog_info *)arg, &ident,
sizeof(ident)))
if (put_user(margin, (int *)arg))
return -EFAULT;
return 0;
+ default:
+ return -ENOTTY;
}
}
static int __init ar7_wdt_init(void)
{
int rc;
-
- ar7_wdt_get_regs();
+
+ ar7_wdt_get_regs();
if (!request_mem_region(ar7_regs_wdt, sizeof(ar7_wdt_t), LONGNAME)) {
printk(KERN_WARNING DRVNAME ": watchdog I/O region busy\n");
rc = misc_register(&ar7_wdt_miscdev);
if (rc) {
- printk(KERN_ERR DRVNAME ": unable to register misc device\n");
+ printk(KERN_ERR DRVNAME ": unable to register misc device\n");
goto out_alloc;
}
rc = register_reboot_notifier(&ar7_wdt_notifier);
- if (rc) {
- printk(KERN_ERR DRVNAME ": unable to register reboot notifier\n");
+ if (rc) {
+ printk(KERN_ERR DRVNAME ": unable to register reboot notifier\n");
goto out_register;
- }
+ }
goto out;
out_register:
static void __exit ar7_wdt_cleanup(void)
{
- unregister_reboot_notifier(&ar7_wdt_notifier);
+ unregister_reboot_notifier(&ar7_wdt_notifier);
misc_deregister(&ar7_wdt_miscdev);
- iounmap(ar7_wdt);
+ iounmap(ar7_wdt);
release_mem_region(ar7_regs_wdt, sizeof(ar7_wdt_t));
}