* Documentation/watchdog/wdt.txt
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/io.h>
#include <linux/uaccess.h>
-#include <asm/system.h>
/* enable support for minutes as units? */
/* (does not always work correctly, so disabled by default!) */
#define UNIT_SECOND 0
#define UNIT_MINUTE 1
-#define MODNAME "smsc37b787_wdt: "
#define VERSION "1.1"
#define IOPORT 0x3F0
static DEFINE_SPINLOCK(io_lock);/* to guard the watchdog from io races */
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
/* -- Low level function ----------------------------------------*/
/* Reload and activate timer */
wb_smsc_wdt_enable();
- printk(KERN_INFO MODNAME
- "Watchdog enabled. Timeout set to %d %s.\n",
+ pr_info("Watchdog enabled. Timeout set to %d %s\n",
timeout, (unit == UNIT_SECOND) ? "second(s)" : "minute(s)");
return nonseekable_open(inode, file);
if (expect_close == 42) {
wb_smsc_wdt_disable();
- printk(KERN_INFO MODNAME
- "Watchdog disabled, sleeping again...\n");
+ pr_info("Watchdog disabled, sleeping again...\n");
} else {
- printk(KERN_CRIT MODNAME
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
wb_smsc_wdt_reset_timer();
}
{
int ret;
- printk(KERN_INFO "SMsC 37B787 watchdog component driver "
- VERSION " initialising...\n");
+ pr_info("SMsC 37B787 watchdog component driver "
+ VERSION " initialising...\n");
if (!request_region(IOPORT, IOPORT_SIZE, "SMsC 37B787 watchdog")) {
- printk(KERN_ERR MODNAME "Unable to register IO port %#x\n",
- IOPORT);
+ pr_err("Unable to register IO port %#x\n", IOPORT);
ret = -EBUSY;
goto out_pnp;
}
ret = register_reboot_notifier(&wb_smsc_wdt_notifier);
if (ret) {
- printk(KERN_ERR MODNAME
- "Unable to register reboot notifier err = %d\n", ret);
+ pr_err("Unable to register reboot notifier err = %d\n", ret);
goto out_io;
}
ret = misc_register(&wb_smsc_wdt_miscdev);
if (ret) {
- printk(KERN_ERR MODNAME
- "Unable to register miscdev on minor %d\n",
- WATCHDOG_MINOR);
+ pr_err("Unable to register miscdev on minor %d\n",
+ WATCHDOG_MINOR);
goto out_rbt;
}
/* output info */
- printk(KERN_INFO MODNAME "Timeout set to %d %s.\n",
+ pr_info("Timeout set to %d %s\n",
timeout, (unit == UNIT_SECOND) ? "second(s)" : "minute(s)");
- printk(KERN_INFO MODNAME
- "Watchdog initialized and sleeping (nowayout=%d)...\n",
- nowayout);
+ pr_info("Watchdog initialized and sleeping (nowayout=%d)...\n",
+ nowayout);
out_clean:
return ret;
/* Stop the timer before we leave */
if (!nowayout) {
wb_smsc_wdt_shutdown();
- printk(KERN_INFO MODNAME "Watchdog disabled.\n");
+ pr_info("Watchdog disabled\n");
}
misc_deregister(&wb_smsc_wdt_miscdev);
unregister_reboot_notifier(&wb_smsc_wdt_notifier);
release_region(IOPORT, IOPORT_SIZE);
- printk(KERN_INFO "SMsC 37B787 watchdog component driver removed.\n");
+ pr_info("SMsC 37B787 watchdog component driver removed\n");
}
module_init(wb_smsc_wdt_init);
module_param(timeout, int, 0);
MODULE_PARM_DESC(timeout, "range is 1-255 units, default is 60");
-module_param(nowayout, int, 0);
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");