mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-09 15:49:42 +02:00
95ef6e1d42
Thank you Peter Wagner for the patch. I refreshed the kernel patches and added the md5sum of the kernel. git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26905 3c298f89-4303-0410-b956-a3cf2f4a3e73
181 lines
4.6 KiB
Diff
181 lines
4.6 KiB
Diff
--- a/drivers/cbus/retu-wdt.c
|
|
+++ b/drivers/cbus/retu-wdt.c
|
|
@@ -52,7 +52,6 @@ static DEFINE_MUTEX(retu_wdt_mutex);
|
|
|
|
/* Current period of watchdog */
|
|
static unsigned int period_val = RETU_WDT_DEFAULT_TIMER;
|
|
-static int counter_param = RETU_WDT_MAX_TIMER;
|
|
|
|
struct retu_wdt_dev {
|
|
struct device *dev;
|
|
@@ -109,56 +108,6 @@ static void retu_wdt_ping_work(struct wo
|
|
retu_wdt_ping_enable(wdev);
|
|
}
|
|
|
|
-static ssize_t retu_wdt_period_show(struct device *dev,
|
|
- struct device_attribute *attr, char *buf)
|
|
-{
|
|
- /* Show current max counter */
|
|
- return sprintf(buf, "%u\n", (u16)period_val);
|
|
-}
|
|
-
|
|
-/*
|
|
- * Note: This inteface is non-standard and likely to disappear!
|
|
- * Use /dev/watchdog instead, that's the standard.
|
|
- */
|
|
-static ssize_t retu_wdt_period_store(struct device *dev,
|
|
- struct device_attribute *attr,
|
|
- const char *buf, size_t count)
|
|
-{
|
|
- unsigned int new_period;
|
|
- int ret;
|
|
-
|
|
-#ifdef CONFIG_WATCHDOG_NOWAYOUT
|
|
- retu_wdt_ping_disable(retu_wdt);
|
|
-#endif
|
|
-
|
|
- if (sscanf(buf, "%u", &new_period) != 1) {
|
|
- printk(KERN_ALERT "retu_wdt_period_store: Invalid input\n");
|
|
- return -EINVAL;
|
|
- }
|
|
-
|
|
- ret = retu_modify_counter(new_period);
|
|
- if (ret < 0)
|
|
- return ret;
|
|
-
|
|
- return strnlen(buf, count);
|
|
-}
|
|
-
|
|
-static ssize_t retu_wdt_counter_show(struct device *dev,
|
|
- struct device_attribute *attr, char *buf)
|
|
-{
|
|
- u16 counter;
|
|
-
|
|
- /* Show current value in watchdog counter */
|
|
- counter = retu_read_reg(dev, RETU_REG_WATCHDOG);
|
|
-
|
|
- /* Only the 5 LSB are important */
|
|
- return snprintf(buf, PAGE_SIZE, "%u\n", (counter & 0x3F));
|
|
-}
|
|
-
|
|
-static DEVICE_ATTR(period, S_IRUGO | S_IWUSR, retu_wdt_period_show, \
|
|
- retu_wdt_period_store);
|
|
-static DEVICE_ATTR(counter, S_IRUGO, retu_wdt_counter_show, NULL);
|
|
-
|
|
static int retu_wdt_open(struct inode *inode, struct file *file)
|
|
{
|
|
if (test_and_set_bit(0, &retu_wdt->users))
|
|
@@ -232,18 +181,6 @@ static long retu_wdt_ioctl(struct file *
|
|
return 0;
|
|
}
|
|
|
|
-/* Start kicking retu watchdog until user space starts doing the kicking */
|
|
-static int __devinit retu_wdt_ping(void)
|
|
-{
|
|
-#ifdef CONFIG_WATCHDOG_NOWAYOUT
|
|
- retu_modify_counter(RETU_WDT_MAX_TIMER);
|
|
-#else
|
|
- retu_wdt_ping_enable(retu_wdt);
|
|
-#endif
|
|
-
|
|
- return 0;
|
|
-}
|
|
-
|
|
static const struct file_operations retu_wdt_fops = {
|
|
.owner = THIS_MODULE,
|
|
.write = retu_wdt_write,
|
|
@@ -252,8 +189,6 @@ static const struct file_operations retu
|
|
.release = retu_wdt_release,
|
|
};
|
|
|
|
-/*----------------------------------------------------------------------------*/
|
|
-
|
|
static int __init retu_wdt_probe(struct platform_device *pdev)
|
|
{
|
|
struct retu_wdt_dev *wdev;
|
|
@@ -265,18 +200,6 @@ static int __init retu_wdt_probe(struct
|
|
|
|
wdev->dev = &pdev->dev;
|
|
|
|
- ret = device_create_file(&pdev->dev, &dev_attr_period);
|
|
- if (ret) {
|
|
- dev_err(&pdev->dev, "Error creating sysfs period\n");
|
|
- goto free1;
|
|
- }
|
|
-
|
|
- ret = device_create_file(&pdev->dev, &dev_attr_counter);
|
|
- if (ret) {
|
|
- dev_err(&pdev->dev, "Error creating sysfs counter\n");
|
|
- goto free2;
|
|
- }
|
|
-
|
|
platform_set_drvdata(pdev, wdev);
|
|
retu_wdt = wdev;
|
|
wdev->retu_wdt_miscdev.parent = &pdev->dev;
|
|
@@ -286,38 +209,21 @@ static int __init retu_wdt_probe(struct
|
|
|
|
ret = misc_register(&(wdev->retu_wdt_miscdev));
|
|
if (ret)
|
|
- goto free3;
|
|
+ goto err_free_wdev;
|
|
|
|
INIT_DELAYED_WORK(&wdev->ping_work, retu_wdt_ping_work);
|
|
|
|
- /* passed as module parameter? */
|
|
- ret = retu_modify_counter(counter_param);
|
|
- if (ret == -EINVAL) {
|
|
- ret = retu_modify_counter(RETU_WDT_DEFAULT_TIMER);
|
|
- dev_dbg(&pdev->dev, "Initializing to default value\n");
|
|
- }
|
|
-
|
|
- /* Kick the watchdog for kernel booting to finish */
|
|
+ /* Kick the watchdog for kernel booting to finish.
|
|
+ * If nowayout is not set, we start the ping work. */
|
|
+#ifdef CONFIG_WATCHDOG_NOWAYOUT
|
|
retu_modify_counter(RETU_WDT_MAX_TIMER);
|
|
-
|
|
- ret = retu_wdt_ping();
|
|
- if (ret < 0) {
|
|
- dev_err(&pdev->dev, "Failed to ping\n");
|
|
- goto free4;
|
|
- }
|
|
+#else
|
|
+ retu_wdt_ping_enable(retu_wdt);
|
|
+#endif
|
|
|
|
return 0;
|
|
|
|
-free4:
|
|
- misc_deregister(&wdev->retu_wdt_miscdev);
|
|
-
|
|
-free3:
|
|
- device_remove_file(&pdev->dev, &dev_attr_counter);
|
|
-
|
|
-free2:
|
|
- device_remove_file(&pdev->dev, &dev_attr_period);
|
|
-
|
|
-free1:
|
|
+err_free_wdev:
|
|
kfree(wdev);
|
|
|
|
return ret;
|
|
@@ -329,8 +235,6 @@ static int __devexit retu_wdt_remove(str
|
|
|
|
wdev = platform_get_drvdata(pdev);
|
|
misc_deregister(&wdev->retu_wdt_miscdev);
|
|
- device_remove_file(&pdev->dev, &dev_attr_period);
|
|
- device_remove_file(&pdev->dev, &dev_attr_counter);
|
|
cancel_delayed_work_sync(&wdev->ping_work);
|
|
kfree(wdev);
|
|
|
|
@@ -356,9 +260,7 @@ static void __exit retu_wdt_exit(void)
|
|
|
|
module_init(retu_wdt_init);
|
|
module_exit(retu_wdt_exit);
|
|
-module_param(counter_param, int, 0);
|
|
|
|
MODULE_DESCRIPTION("Retu WatchDog");
|
|
MODULE_AUTHOR("Amit Kucheria");
|
|
MODULE_LICENSE("GPL");
|
|
-
|