+++ /dev/null
-00-INDEX
- - this file.
-convert_drivers_to_kernel_api.txt
- - how-to for converting old watchdog drivers to the new kernel API.
-hpwdt.txt
- - information on the HP iLO2 NMI watchdog
-pcwd-watchdog.txt
- - documentation for Berkshire Products PC Watchdog ISA cards.
-src/
- - directory holding watchdog related example programs.
-watchdog-api.txt
- - description of the Linux Watchdog driver API.
-watchdog-kernel-api.txt
- - description of the Linux WatchDog Timer Driver Core kernel API.
-watchdog-parameters.txt
- - information on driver parameters (for drivers other than
- the ones that have driver-specific files here)
-wdt.txt
- - description of the Watchdog Timer Interfaces for Linux.
WDIOC_GETTIMEOUT:
No preparations needed
+ WDIOC_GETTIMELEFT:
+ It needs get_timeleft() callback to be defined. Otherwise it
+ will return EOPNOTSUPP
+
Other IOCTLs can be served using the ioctl-callback. Note that this is mainly
intended for porting old drivers; new drivers should not invent private IOCTLs.
Private IOCTLs are processed first. When the callback returns with
The Linux WatchDog Timer Driver Core kernel API.
===============================================
-Last reviewed: 29-Nov-2011
+Last reviewed: 16-Mar-2012
Wim Van Sebroeck <wim@iguana.be>
int (*ping)(struct watchdog_device *);
unsigned int (*status)(struct watchdog_device *);
int (*set_timeout)(struct watchdog_device *, unsigned int);
+ unsigned int (*get_timeleft)(struct watchdog_device *);
long (*ioctl)(struct watchdog_device *, unsigned int, unsigned long);
};
status of the device is reported with watchdog WDIOF_* status flags/bits.
* set_timeout: this routine checks and changes the timeout of the watchdog
timer device. It returns 0 on success, -EINVAL for "parameter out of range"
- and -EIO for "could not write value to the watchdog". On success the timeout
- value of the watchdog_device will be changed to the value that was just used
- to re-program the watchdog timer device.
+ and -EIO for "could not write value to the watchdog". On success this
+ routine should set the timeout value of the watchdog_device to the
+ achieved timeout value (which may be different from the requested one
+ because the watchdog does not necessarily has a 1 second resolution).
(Note: the WDIOF_SETTIMEOUT needs to be set in the options field of the
watchdog's info structure).
+* get_timeleft: this routines returns the time that's left before a reset.
* ioctl: if this routine is present then it will be called first before we do
our own internal ioctl call handling. This routine should return -ENOIOCTLCMD
if a command is not supported. The parameters that are passed to the ioctl
#endif
static DEFINE_MUTEX(ipmi_watchdog_mutex);
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
static ipmi_user_t watchdog_user;
static int watchdog_ifnum;
MODULE_PARM_DESC(start_now, "Set to 1 to start the watchdog as"
"soon as the driver is loaded.");
-module_param(nowayout, int, 0644);
+module_param(nowayout, bool, 0644);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
"(default=CONFIG_WATCHDOG_NOWAYOUT)");
static const unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
/* Insmod parameters */
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
"Watchdog timeout in minutes. 2<= timeout <=255 (default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
mutex_lock(&dev->device_lock);
dev->wd_timeout = timeout;
+ wd_dev->timeout = timeout;
mei_wd_set_start_timeout(dev, dev->wd_timeout);
mutex_unlock(&dev->device_lock);
config SOFT_WATCHDOG
tristate "Software watchdog"
+ select WATCHDOG_CORE
help
A software monitoring watchdog. This will fail to reboot your system
from some situations that the hardware watchdog will recover
config WM8350_WATCHDOG
tristate "WM8350 watchdog"
depends on MFD_WM8350
+ select WATCHDOG_CORE
help
Support for the watchdog in the WM8350 AudioPlus PMIC. When
the watchdog triggers the system will be reset.
config EP93XX_WATCHDOG
tristate "EP93xx Watchdog"
depends on ARCH_EP93XX
+ select WATCHDOG_CORE
help
Say Y here if to include support for the watchdog timer
embedded in the Cirrus Logic EP93xx family of devices.
config PNX4008_WATCHDOG
tristate "PNX4008 and LPC32XX Watchdog"
depends on ARCH_PNX4008 || ARCH_LPC32XX
+ select WATCHDOG_CORE
help
Say Y here if to include support for the watchdog timer
in the PNX4008 or LPC32XX processor.
bool "ST-Ericsson COH 901 327 watchdog"
depends on ARCH_U300
default y if MACH_U300
+ select WATCHDOG_CORE
help
Say Y here to include Watchdog timer support for the
watchdog embedded into the ST-Ericsson U300 series platforms.
config MAX63XX_WATCHDOG
tristate "Max63xx watchdog"
depends on ARM && HAS_IOMEM
+ select WATCHDOG_CORE
help
Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
config JZ4740_WDT
tristate "Ingenic jz4740 SoC hardware watchdog"
depends on MACH_JZ4740
+ select WATCHDOG_CORE
help
Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
config TXX9_WDT
tristate "Toshiba TXx9 Watchdog Timer"
depends on CPU_TX39XX || CPU_TX49XX
+ select WATCHDOG_CORE
help
Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
* Includes, defines, variables, module parameters, ...
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
/* Includes */
#include <linux/module.h> /* For module specific items */
#include <linux/moduleparam.h> /* For new moduleparam's */
/* Module information */
#define DRV_NAME "acquirewdt"
-#define PFX DRV_NAME ": "
#define WATCHDOG_NAME "Acquire WDT"
/* There is no way to see what the correct time-out period is */
#define WATCHDOG_HEARTBEAT 0
module_param(wdt_start, int, 0);
MODULE_PARM_DESC(wdt_start, "Acquire WDT 'start' io port (default 0x443)");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
if (expect_close == 42) {
acq_stop();
} else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
acq_keepalive();
}
clear_bit(0, &acq_is_open);
if (wdt_stop != wdt_start) {
if (!request_region(wdt_stop, 1, WATCHDOG_NAME)) {
- printk(KERN_ERR PFX
- "I/O address 0x%04x already in use\n", wdt_stop);
+ pr_err("I/O address 0x%04x already in use\n", wdt_stop);
ret = -EIO;
goto out;
}
}
if (!request_region(wdt_start, 1, WATCHDOG_NAME)) {
- printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
- wdt_start);
+ pr_err("I/O address 0x%04x already in use\n", wdt_start);
ret = -EIO;
goto unreg_stop;
}
ret = misc_register(&acq_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto unreg_regions;
}
- printk(KERN_INFO PFX "initialized. (nowayout=%d)\n", nowayout);
+ pr_info("initialized. (nowayout=%d)\n", nowayout);
return 0;
unreg_regions:
{
int err;
- printk(KERN_INFO
- "WDT driver for Acquire single board computer initialising.\n");
+ pr_info("WDT driver for Acquire single board computer initialising\n");
err = platform_driver_register(&acquirewdt_driver);
if (err)
{
platform_device_unregister(acq_platform_device);
platform_driver_unregister(&acquirewdt_driver);
- printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+ pr_info("Watchdog Module Unloaded\n");
}
module_init(acq_init);
* add wdt_start and wdt_stop as parameters.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <asm/system.h>
#define DRV_NAME "advantechwdt"
-#define PFX DRV_NAME ": "
#define WATCHDOG_NAME "Advantech WDT"
#define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */
"Watchdog timeout in seconds. 1<= timeout <=63, default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ".");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
if (adv_expect_close == 42) {
advwdt_disable();
} else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
advwdt_ping();
}
clear_bit(0, &advwdt_is_open);
if (wdt_stop != wdt_start) {
if (!request_region(wdt_stop, 1, WATCHDOG_NAME)) {
- printk(KERN_ERR PFX
- "I/O address 0x%04x already in use\n",
- wdt_stop);
+ pr_err("I/O address 0x%04x already in use\n",
+ wdt_stop);
ret = -EIO;
goto out;
}
}
if (!request_region(wdt_start, 1, WATCHDOG_NAME)) {
- printk(KERN_ERR PFX
- "I/O address 0x%04x already in use\n",
- wdt_start);
+ pr_err("I/O address 0x%04x already in use\n", wdt_start);
ret = -EIO;
goto unreg_stop;
}
* if not reset to the default */
if (advwdt_set_heartbeat(timeout)) {
advwdt_set_heartbeat(WATCHDOG_TIMEOUT);
- printk(KERN_INFO PFX
- "timeout value must be 1<=x<=63, using %d\n", timeout);
+ pr_info("timeout value must be 1<=x<=63, using %d\n", timeout);
}
ret = misc_register(&advwdt_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto unreg_regions;
}
- printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n",
+ pr_info("initialized. timeout=%d sec (nowayout=%d)\n",
timeout, nowayout);
out:
return ret;
{
int err;
- printk(KERN_INFO
- "WDT driver for Advantech single board computer initialising.\n");
+ pr_info("WDT driver for Advantech single board computer initialising\n");
err = platform_driver_register(&advwdt_driver);
if (err)
{
platform_device_unregister(advwdt_platform_device);
platform_driver_unregister(&advwdt_driver);
- printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+ pr_info("Watchdog Module Unloaded\n");
}
module_init(advwdt_init);
* 2 of the License, or (at your option) any later version.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/io.h>
#define WATCHDOG_NAME "ALi_M1535"
-#define PFX WATCHDOG_NAME ": "
#define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */
/* internal variables */
"Watchdog timeout in seconds. (0 < timeout < 18000, default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
if (ali_expect_release == 42)
ali_stop();
else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
ali_keepalive();
}
clear_bit(0, &ali_is_open);
if not reset to the default */
if (timeout < 1 || timeout >= 18000) {
timeout = WATCHDOG_TIMEOUT;
- printk(KERN_INFO PFX
- "timeout value must be 0 < timeout < 18000, using %d\n",
- timeout);
+ pr_info("timeout value must be 0 < timeout < 18000, using %d\n",
+ timeout);
}
/* Calculate the watchdog's timeout */
ret = register_reboot_notifier(&ali_notifier);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", ret);
+ pr_err("cannot register reboot notifier (err=%d)\n", ret);
goto out;
}
ret = misc_register(&ali_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto unreg_reboot;
}
- printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n",
+ pr_info("initialized. timeout=%d sec (nowayout=%d)\n",
timeout, nowayout);
out:
* -- Mike Waychison <michael.waychison@sun.com>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <asm/system.h>
-#define OUR_NAME "alim7101_wdt"
-#define PFX OUR_NAME ": "
-
#define WDT_ENABLE 0x9C
#define WDT_DISABLE 0x8C
static char wdt_expect_close;
static struct pci_dev *alim7101_pmu;
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
ALI_7101_GPIO_O, tmp & ~0x20);
}
} else {
- printk(KERN_WARNING PFX
- "Heartbeat lost! Will not ping the watchdog\n");
+ pr_warn("Heartbeat lost! Will not ping the watchdog\n");
}
/* Re-set the timer interval */
mod_timer(&timer, jiffies + WDT_INTERVAL);
/* Start the timer */
mod_timer(&timer, jiffies + WDT_INTERVAL);
- printk(KERN_INFO PFX "Watchdog timer is now enabled.\n");
+ pr_info("Watchdog timer is now enabled\n");
}
static void wdt_turnoff(void)
/* Stop the timer */
del_timer_sync(&timer);
wdt_change(WDT_DISABLE);
- printk(KERN_INFO PFX "Watchdog timer is now disabled...\n");
+ pr_info("Watchdog timer is now disabled...\n");
}
static void wdt_keepalive(void)
wdt_turnoff();
else {
/* wim: shouldn't there be a: del_timer(&timer); */
- printk(KERN_CRIT PFX
- "device file closed unexpectedly. Will not stop the WDT!\n");
+ pr_crit("device file closed unexpectedly. Will not stop the WDT!\n");
}
clear_bit(0, &wdt_is_open);
wdt_expect_close = 0;
* watchdog on reboot with no heartbeat
*/
wdt_change(WDT_ENABLE);
- printk(KERN_INFO PFX "Watchdog timer is now enabled "
- "with no heartbeat - should reboot in ~1 second.\n");
+ pr_info("Watchdog timer is now enabled with no heartbeat - should reboot in ~1 second\n");
}
return NOTIFY_DONE;
}
struct pci_dev *ali1543_south;
char tmp;
- printk(KERN_INFO PFX "Steve Hill <steve@navaho.co.uk>.\n");
+ pr_info("Steve Hill <steve@navaho.co.uk>\n");
alim7101_pmu = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101,
NULL);
if (!alim7101_pmu) {
- printk(KERN_INFO PFX
- "ALi M7101 PMU not present - WDT not set\n");
+ pr_info("ALi M7101 PMU not present - WDT not set\n");
return -EBUSY;
}
ali1543_south = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
NULL);
if (!ali1543_south) {
- printk(KERN_INFO PFX
- "ALi 1543 South-Bridge not present - WDT not set\n");
+ pr_info("ALi 1543 South-Bridge not present - WDT not set\n");
goto err_out;
}
pci_read_config_byte(ali1543_south, 0x5e, &tmp);
pci_dev_put(ali1543_south);
if ((tmp & 0x1e) == 0x00) {
if (!use_gpio) {
- printk(KERN_INFO PFX
- "Detected old alim7101 revision 'a1d'. "
- "If this is a cobalt board, set the 'use_gpio' "
- "module parameter.\n");
+ pr_info("Detected old alim7101 revision 'a1d'. If this is a cobalt board, set the 'use_gpio' module parameter.\n");
goto err_out;
}
nowayout = 1;
} else if ((tmp & 0x1e) != 0x12 && (tmp & 0x1e) != 0x00) {
- printk(KERN_INFO PFX
- "ALi 1543 South-Bridge does not have the correct "
- "revision number (???1001?) - WDT not set\n");
+ pr_info("ALi 1543 South-Bridge does not have the correct revision number (???1001?) - WDT not set\n");
goto err_out;
}
if (timeout < 1 || timeout > 3600) {
/* arbitrary upper limit */
timeout = WATCHDOG_TIMEOUT;
- printk(KERN_INFO PFX
- "timeout value must be 1 <= x <= 3600, using %d\n",
- timeout);
+ pr_info("timeout value must be 1 <= x <= 3600, using %d\n",
+ timeout);
}
rc = register_reboot_notifier(&wdt_notifier);
if (rc) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", rc);
+ pr_err("cannot register reboot notifier (err=%d)\n", rc);
goto err_out;
}
rc = misc_register(&wdt_miscdev);
if (rc) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- wdt_miscdev.minor, rc);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ wdt_miscdev.minor, rc);
goto err_out_reboot;
}
if (nowayout)
__module_get(THIS_MODULE);
- printk(KERN_INFO PFX "WDT driver for ALi M7101 initialised. "
- "timeout=%d sec (nowayout=%d)\n",
+ pr_info("WDT driver for ALi M7101 initialised. timeout=%d sec (nowayout=%d)\n",
timeout, nowayout);
return 0;
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/errno.h>
#include <asm/addrspace.h>
#include <asm/mach-ar7/ar7.h>
-#define DRVNAME "ar7_wdt"
#define LONGNAME "TI AR7 Watchdog Timer"
MODULE_AUTHOR("Nicolas Thill <nico@openwrt.org>");
module_param(margin, int, 0);
MODULE_PARM_DESC(margin, "Watchdog margin in seconds");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close");
#define READ_REG(x) readl((void __iomem *)&(x))
return;
}
}
- printk(KERN_ERR DRVNAME ": failed to unlock WDT kick reg\n");
+ pr_err("failed to unlock WDT kick reg\n");
}
static void ar7_wdt_prescale(u32 value)
return;
}
}
- printk(KERN_ERR DRVNAME ": failed to unlock WDT prescale reg\n");
+ pr_err("failed to unlock WDT prescale reg\n");
}
static void ar7_wdt_change(u32 value)
return;
}
}
- printk(KERN_ERR DRVNAME ": failed to unlock WDT change reg\n");
+ pr_err("failed to unlock WDT change reg\n");
}
static void ar7_wdt_disable(u32 value)
}
}
}
- printk(KERN_ERR DRVNAME ": failed to unlock WDT disable reg\n");
+ pr_err("failed to unlock WDT disable reg\n");
}
static void ar7_wdt_update_margin(int new_margin)
change = 0xffff;
ar7_wdt_change(change);
margin = change * prescale_value / vbus_rate;
- printk(KERN_INFO DRVNAME
- ": timer margin %d seconds (prescale %d, change %d, freq %d)\n",
- margin, prescale_value, change, vbus_rate);
+ pr_info("timer margin %d seconds (prescale %d, change %d, freq %d)\n",
+ margin, prescale_value, change, vbus_rate);
}
static void ar7_wdt_enable_wdt(void)
{
- printk(KERN_DEBUG DRVNAME ": enabling watchdog timer\n");
+ pr_debug("enabling watchdog timer\n");
ar7_wdt_disable(1);
ar7_wdt_kick(1);
}
static void ar7_wdt_disable_wdt(void)
{
- printk(KERN_DEBUG DRVNAME ": disabling watchdog timer\n");
+ pr_debug("disabling watchdog timer\n");
ar7_wdt_disable(0);
}
static int ar7_wdt_release(struct inode *inode, struct file *file)
{
if (!expect_close)
- printk(KERN_WARNING DRVNAME
- ": watchdog device closed unexpectedly,"
- "will not disable the watchdog timer\n");
+ pr_warn("watchdog device closed unexpectedly, will not disable the watchdog timer\n");
else if (!nowayout)
ar7_wdt_disable_wdt();
clear_bit(0, &wdt_is_open);
ar7_regs_wdt =
platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
if (!ar7_regs_wdt) {
- printk(KERN_ERR DRVNAME ": could not get registers resource\n");
+ pr_err("could not get registers resource\n");
rc = -ENODEV;
goto out;
}
if (!request_mem_region(ar7_regs_wdt->start,
resource_size(ar7_regs_wdt), LONGNAME)) {
- printk(KERN_WARNING DRVNAME ": watchdog I/O region busy\n");
+ pr_warn("watchdog I/O region busy\n");
rc = -EBUSY;
goto out;
}
ar7_wdt = ioremap(ar7_regs_wdt->start, resource_size(ar7_regs_wdt));
if (!ar7_wdt) {
- printk(KERN_ERR DRVNAME ": could not ioremap registers\n");
+ pr_err("could not ioremap registers\n");
rc = -ENXIO;
goto out_mem_region;
}
vbus_clk = clk_get(NULL, "vbus");
if (IS_ERR(vbus_clk)) {
- printk(KERN_ERR DRVNAME ": could not get vbus clock\n");
+ pr_err("could not get vbus clock\n");
rc = PTR_ERR(vbus_clk);
goto out_mem_region;
}
rc = misc_register(&ar7_wdt_miscdev);
if (rc) {
- printk(KERN_ERR DRVNAME ": unable to register misc device\n");
+ pr_err("unable to register misc device\n");
goto out_alloc;
}
goto out;
"Timeout value. Limited to be 1 or 2 seconds. (default="
__MODULE_STRING(TIMEOUT_DEFAULT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
* 2 of the License, or (at your option) any later version.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/fs.h>
#define WDT_MAX_TIME 256 /* seconds */
static int wdt_time = WDT_DEFAULT_TIME;
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
module_param(wdt_time, int, 0);
MODULE_PARM_DESC(wdt_time, "Watchdog time in seconds. (default="
__MODULE_STRING(WDT_DEFAULT_TIME) ")");
#ifdef CONFIG_WATCHDOG_NOWAYOUT
-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) ")");
if (res)
return res;
- printk(KERN_INFO "AT91 Watchdog Timer enabled (%d seconds%s)\n",
- wdt_time, nowayout ? ", nowayout" : "");
+ pr_info("AT91 Watchdog Timer enabled (%d seconds%s)\n",
+ wdt_time, nowayout ? ", nowayout" : "");
return 0;
}
if not reset to the default */
if (at91_wdt_settimeout(wdt_time)) {
at91_wdt_settimeout(WDT_DEFAULT_TIME);
- pr_info("at91_wdt: wdt_time value must be 1 <= wdt_time <= 256"
- ", using %d\n", wdt_time);
+ pr_info("wdt_time value must be 1 <= wdt_time <= 256, using %d\n",
+ wdt_time);
}
return platform_driver_register(&at91wdt_driver);
* bootloader doesn't write to this register.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/init.h>
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeats in seconds. "
"(default = " __MODULE_STRING(WDT_HEARTBEAT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
"(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
at91_wdt_reset();
mod_timer(&at91wdt_private.timer, jiffies + WDT_TIMEOUT);
} else
- printk(KERN_CRIT DRV_NAME": I will reset your machine !\n");
+ pr_crit("I will reset your machine !\n");
}
/*
/* Check if disabled */
mr = wdt_read(AT91_WDT_MR);
if (mr & AT91_WDT_WDDIS) {
- printk(KERN_ERR DRV_NAME": sorry, watchdog is disabled\n");
+ pr_err("sorry, watchdog is disabled\n");
return -EIO;
}
setup_timer(&at91wdt_private.timer, at91_ping, 0);
mod_timer(&at91wdt_private.timer, jiffies + WDT_TIMEOUT);
- printk(KERN_INFO DRV_NAME " enabled (heartbeat=%d sec, nowayout=%d)\n",
+ pr_info("enabled (heartbeat=%d sec, nowayout=%d)\n",
heartbeat, nowayout);
return 0;
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/fs.h>
#define WDOG_CTRL_ACTION_NMI 2 /* NMI */
#define WDOG_CTRL_ACTION_FCR 3 /* full chip reset */
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
"(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
if (test_bit(WDT_FLAGS_EXPECT_CLOSE, &wdt_flags))
ath79_wdt_disable();
else {
- pr_crit(DRIVER_NAME ": device closed unexpectedly, "
- "watchdog timer will not stop!\n");
+ pr_crit("device closed unexpectedly, watchdog timer will not stop!\n");
ath79_wdt_keepalive();
}
* 2 of the License, or (at your option) any later version.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/fs.h>
#define WDT_MAX_TIME 255 /* seconds */
static int wdt_time = WDT_DEFAULT_TIME;
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
module_param(wdt_time, int, 0);
MODULE_PARM_DESC(wdt_time, "Watchdog time in seconds. (default="
__MODULE_STRING(WDT_DEFAULT_TIME) ")");
#ifdef CONFIG_WATCHDOG_NOWAYOUT
-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) ")");
bcm47xx_wdt_hw_start();
mod_timer(&wdt_timer, jiffies + HZ);
} else {
- printk(KERN_CRIT DRV_NAME "Watchdog will fire soon!!!\n");
+ pr_crit("Watchdog will fire soon!!!\n");
}
}
if (expect_release == 42) {
bcm47xx_wdt_stop();
} else {
- printk(KERN_CRIT DRV_NAME
- ": Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
bcm47xx_wdt_start();
}
if (bcm47xx_wdt_settimeout(wdt_time)) {
bcm47xx_wdt_settimeout(WDT_DEFAULT_TIME);
- printk(KERN_INFO DRV_NAME ": "
- "wdt_time value must be 0 < wdt_time < %d, using %d\n",
+ pr_info("wdt_time value must be 0 < wdt_time < %d, using %d\n",
(WDT_MAX_TIME + 1), wdt_time);
}
return ret;
}
- printk(KERN_INFO "BCM47xx Watchdog Timer enabled (%d seconds%s)\n",
- wdt_time, nowayout ? ", nowayout" : "");
+ pr_info("BCM47xx Watchdog Timer enabled (%d seconds%s)\n",
+ wdt_time, nowayout ? ", nowayout" : "");
return 0;
}
* 2 of the License, or (at your option) any later version.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/fs.h>
static int expect_close;
static int wdt_time = WDT_DEFAULT_TIME;
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
bcm63xx_wdt_hw_start();
mod_timer(&bcm63xx_wdt_device.timer, jiffies + HZ);
} else
- printk(KERN_CRIT PFX ": watchdog will restart system\n");
+ pr_crit("watchdog will restart system\n");
}
static void bcm63xx_wdt_pet(void)
if (expect_close == 42)
bcm63xx_wdt_pause();
else {
- printk(KERN_CRIT PFX
- ": Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
bcm63xx_wdt_start();
}
clear_bit(0, &bcm63xx_wdt_device.inuse);
* Licensed under the GPL-2 or later.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#define stamp(fmt, args...) \
pr_debug("%s:%i: " fmt "\n", __func__, __LINE__, ## args)
#define stampit() stamp("here i am")
-#define pr_devinit(fmt, args...) \
- ({ static const __devinitconst char __fmt[] = fmt; \
- printk(__fmt, ## args); })
-#define pr_init(fmt, args...) \
- ({ static const __initconst char __fmt[] = fmt; \
- printk(__fmt, ## args); })
#define WATCHDOG_NAME "bfin-wdt"
-#define PFX WATCHDOG_NAME ": "
/* The BF561 has two watchdogs (one per core), but since Linux
* only runs on core A, we'll just work with that one.
#define WATCHDOG_TIMEOUT 20
static unsigned int timeout = WATCHDOG_TIMEOUT;
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
static const struct watchdog_info bfin_wdt_info;
static unsigned long open_check;
static char expect_close;
stamp("maxtimeout=%us newtimeout=%lus (cnt=%#x)", max_t, t, cnt);
if (t > max_t) {
- printk(KERN_WARNING PFX "timeout value is too large\n");
+ pr_warn("timeout value is too large\n");
return -EINVAL;
}
if (expect_close == 42)
bfin_wdt_stop();
else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
bfin_wdt_keepalive();
}
expect_close = 0;
ret = misc_register(&bfin_wdt_miscdev);
if (ret) {
- pr_devinit(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
return ret;
}
- pr_devinit(KERN_INFO PFX "initialized: timeout=%d sec (nowayout=%d)\n",
- timeout, nowayout);
+ pr_info("initialized: timeout=%d sec (nowayout=%d)\n",
+ timeout, nowayout);
return 0;
}
*/
ret = platform_driver_register(&bfin_wdt_driver);
if (ret) {
- pr_init(KERN_ERR PFX "unable to register driver\n");
+ pr_err("unable to register driver\n");
return ret;
}
bfin_wdt_device = platform_device_register_simple(WATCHDOG_NAME,
-1, NULL, 0);
if (IS_ERR(bfin_wdt_device)) {
- pr_init(KERN_ERR PFX "unable to register device\n");
+ pr_err("unable to register device\n");
platform_driver_unregister(&bfin_wdt_driver);
return PTR_ERR(bfin_wdt_device);
}
"Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
-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) ")");
* option) any later version.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/smp.h>
if (booke_wdt_enabled == 0) {
booke_wdt_enabled = 1;
on_each_cpu(__booke_wdt_enable, NULL, 0);
- pr_debug("booke_wdt: watchdog enabled (timeout = %llu sec)\n",
- period_to_sec(booke_wdt_period));
+ pr_debug("watchdog enabled (timeout = %llu sec)\n",
+ period_to_sec(booke_wdt_period));
}
spin_unlock(&booke_wdt_lock);
*/
on_each_cpu(__booke_wdt_disable, NULL, 0);
booke_wdt_enabled = 0;
- pr_debug("booke_wdt: watchdog disabled\n");
+ pr_debug("watchdog disabled\n");
#endif
clear_bit(0, &wdt_is_active);
{
int ret = 0;
- pr_info("booke_wdt: powerpc book-e watchdog driver loaded\n");
+ pr_info("powerpc book-e watchdog driver loaded\n");
ident.firmware_version = cur_cpu_spec->pvr_value;
ret = misc_register(&booke_wdt_miscdev);
if (ret) {
- pr_err("booke_wdt: cannot register device (minor=%u, ret=%i)\n",
+ pr_err("cannot register device (minor=%u, ret=%i)\n",
WATCHDOG_MINOR, ret);
return ret;
}
spin_lock(&booke_wdt_lock);
if (booke_wdt_enabled == 1) {
- pr_info("booke_wdt: watchdog enabled (timeout = %llu sec)\n",
+ pr_info("watchdog enabled (timeout = %llu sec)\n",
period_to_sec(booke_wdt_period));
on_each_cpu(__booke_wdt_enable, NULL, 0);
}
*/
#include <linux/module.h>
#include <linux/types.h>
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/interrupt.h>
#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/bitops.h>
-#include <linux/uaccess.h>
#include <linux/clk.h>
#include <linux/delay.h>
+#include <linux/err.h>
#define DRV_NAME "WDOG COH 901 327"
#define U300_WDOG_IFR_WILL_BARK_IRQ_FORCE_ENABLE 0x0001U
/* Default timeout in seconds = 1 minute */
-static int margin = 60;
+static unsigned int margin = 60;
static resource_size_t phybase;
static resource_size_t physize;
static int irq;
static void __iomem *virtbase;
-static unsigned long coh901327_users;
-static unsigned long boot_status;
static struct device *parent;
/*
__func__, val);
}
-static void coh901327_start(void)
+static int coh901327_start(struct watchdog_device *wdt_dev)
{
- coh901327_enable(margin * 100);
+ coh901327_enable(wdt_dev->timeout * 100);
+ return 0;
+}
+
+static int coh901327_stop(struct watchdog_device *wdt_dev)
+{
+ coh901327_disable();
+ return 0;
}
-static void coh901327_keepalive(void)
+static int coh901327_ping(struct watchdog_device *wdd)
{
clk_enable(clk);
/* Feed the watchdog */
writew(U300_WDOG_FR_FEED_RESTART_TIMER,
virtbase + U300_WDOG_FR);
clk_disable(clk);
+ return 0;
}
-static int coh901327_settimeout(int time)
+static int coh901327_settimeout(struct watchdog_device *wdt_dev,
+ unsigned int time)
{
- /*
- * Max margin is 327 since the 10ms
- * timeout register is max
- * 0x7FFF = 327670ms ~= 327s.
- */
- if (time <= 0 || time > 327)
- return -EINVAL;
-
- margin = time;
+ wdt_dev->timeout = time;
clk_enable(clk);
/* Set new timeout value */
- writew(margin * 100, virtbase + U300_WDOG_TR);
+ writew(time * 100, virtbase + U300_WDOG_TR);
/* Feed the dog */
writew(U300_WDOG_FR_FEED_RESTART_TIMER,
virtbase + U300_WDOG_FR);
return 0;
}
+static unsigned int coh901327_gettimeleft(struct watchdog_device *wdt_dev)
+{
+ u16 val;
+
+ clk_enable(clk);
+ /* Read repeatedly until the value is stable! */
+ val = readw(virtbase + U300_WDOG_CR);
+ while (val & U300_WDOG_CR_VALID_IND)
+ val = readw(virtbase + U300_WDOG_CR);
+ val &= U300_WDOG_CR_COUNT_VALUE_MASK;
+ clk_disable(clk);
+ if (val != 0)
+ val /= 100;
+
+ return val;
+}
+
/*
* This interrupt occurs 10 ms before the watchdog WILL bark.
*/
return IRQ_HANDLED;
}
-/*
- * Allow only one user (daemon) to open the watchdog
- */
-static int coh901327_open(struct inode *inode, struct file *file)
-{
- if (test_and_set_bit(1, &coh901327_users))
- return -EBUSY;
- coh901327_start();
- return nonseekable_open(inode, file);
-}
-
-static int coh901327_release(struct inode *inode, struct file *file)
-{
- clear_bit(1, &coh901327_users);
- coh901327_disable();
- return 0;
-}
-
-static ssize_t coh901327_write(struct file *file, const char __user *data,
- size_t len, loff_t *ppos)
-{
- if (len)
- coh901327_keepalive();
- return len;
-}
-
-static long coh901327_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- int ret = -ENOTTY;
- u16 val;
- int time;
- int new_options;
- union {
- struct watchdog_info __user *ident;
- int __user *i;
- } uarg;
- static const struct watchdog_info ident = {
- .options = WDIOF_CARDRESET |
- WDIOF_SETTIMEOUT |
- WDIOF_KEEPALIVEPING,
- .identity = "COH 901 327 Watchdog",
- .firmware_version = 1,
- };
- uarg.i = (int __user *)arg;
-
- switch (cmd) {
- case WDIOC_GETSUPPORT:
- ret = copy_to_user(uarg.ident, &ident,
- sizeof(ident)) ? -EFAULT : 0;
- break;
-
- case WDIOC_GETSTATUS:
- ret = put_user(0, uarg.i);
- break;
-
- case WDIOC_GETBOOTSTATUS:
- ret = put_user(boot_status, uarg.i);
- break;
-
- case WDIOC_SETOPTIONS:
- ret = get_user(new_options, uarg.i);
- if (ret)
- break;
- if (new_options & WDIOS_DISABLECARD)
- coh901327_disable();
- if (new_options & WDIOS_ENABLECARD)
- coh901327_start();
- ret = 0;
- break;
-
- case WDIOC_KEEPALIVE:
- coh901327_keepalive();
- ret = 0;
- break;
-
- case WDIOC_SETTIMEOUT:
- ret = get_user(time, uarg.i);
- if (ret)
- break;
-
- ret = coh901327_settimeout(time);
- if (ret)
- break;
- /* Then fall through to return set value */
-
- case WDIOC_GETTIMEOUT:
- ret = put_user(margin, uarg.i);
- break;
-
- case WDIOC_GETTIMELEFT:
- clk_enable(clk);
- /* Read repeatedly until the value is stable! */
- val = readw(virtbase + U300_WDOG_CR);
- while (val & U300_WDOG_CR_VALID_IND)
- val = readw(virtbase + U300_WDOG_CR);
- val &= U300_WDOG_CR_COUNT_VALUE_MASK;
- clk_disable(clk);
- if (val != 0)
- val /= 100;
- ret = put_user(val, uarg.i);
- break;
- }
- return ret;
-}
+static const struct watchdog_info coh901327_ident = {
+ .options = WDIOF_CARDRESET | WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+ .identity = DRV_NAME,
+};
-static const struct file_operations coh901327_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = coh901327_write,
- .unlocked_ioctl = coh901327_ioctl,
- .open = coh901327_open,
- .release = coh901327_release,
+static struct watchdog_ops coh901327_ops = {
+ .owner = THIS_MODULE,
+ .start = coh901327_start,
+ .stop = coh901327_stop,
+ .ping = coh901327_ping,
+ .set_timeout = coh901327_settimeout,
+ .get_timeleft = coh901327_gettimeleft,
};
-static struct miscdevice coh901327_miscdev = {
- .minor = WATCHDOG_MINOR,
- .name = "watchdog",
- .fops = &coh901327_fops,
+static struct watchdog_device coh901327_wdt = {
+ .info = &coh901327_ident,
+ .ops = &coh901327_ops,
+ /*
+ * Max timeout is 327 since the 10ms
+ * timeout register is max
+ * 0x7FFF = 327670ms ~= 327s.
+ */
+ .min_timeout = 0,
+ .max_timeout = 327,
};
static int __exit coh901327_remove(struct platform_device *pdev)
{
- misc_deregister(&coh901327_miscdev);
+ watchdog_unregister_device(&coh901327_wdt);
coh901327_disable();
free_irq(irq, pdev);
clk_put(clk);
return 0;
}
-
static int __init coh901327_probe(struct platform_device *pdev)
{
int ret;
case U300_WDOG_SR_STATUS_TIMED_OUT:
dev_info(&pdev->dev,
"watchdog timed out since last chip reset!\n");
- boot_status = WDIOF_CARDRESET;
+ coh901327_wdt.bootstatus |= WDIOF_CARDRESET;
/* Status will be cleared below */
break;
case U300_WDOG_SR_STATUS_NORMAL:
clk_disable(clk);
- ret = misc_register(&coh901327_miscdev);
+ if (margin < 1 || margin > 327)
+ margin = 60;
+ coh901327_wdt.timeout = margin;
+
+ ret = watchdog_register_device(&coh901327_wdt);
if (ret == 0)
dev_info(&pdev->dev,
"initialized. timer margin=%d sec\n", margin);
MODULE_AUTHOR("Linus Walleij <linus.walleij@stericsson.com>");
MODULE_DESCRIPTION("COH 901 327 Watchdog");
-module_param(margin, int, 0);
+module_param(margin, uint, 0);
MODULE_PARM_DESC(margin, "Watchdog margin in seconds (default 60s)");
MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("platform:coh901327-watchdog");
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
static void cpu5wdt_trigger(unsigned long unused)
{
if (verbose > 2)
- printk(KERN_DEBUG PFX "trigger at %i ticks\n", ticks);
+ pr_debug("trigger at %i ticks\n", ticks);
if (cpu5wdt_device.running)
ticks--;
ticks = cpu5wdt_device.default_ticks;
if (verbose)
- printk(KERN_DEBUG PFX "reset (%i ticks)\n", (int) ticks);
+ pr_debug("reset (%i ticks)\n", (int) ticks);
}
ticks = cpu5wdt_device.default_ticks;
spin_unlock_irqrestore(&cpu5wdt_lock, flags);
if (verbose)
- printk(KERN_CRIT PFX "stop not possible\n");
+ pr_crit("stop not possible\n");
return -EIO;
}
int err;
if (verbose)
- printk(KERN_DEBUG PFX
- "port=0x%x, verbose=%i\n", port, verbose);
+ pr_debug("port=0x%x, verbose=%i\n", port, verbose);
init_completion(&cpu5wdt_device.stop);
cpu5wdt_device.queue = 0;
cpu5wdt_device.default_ticks = ticks;
if (!request_region(port, CPU5WDT_EXTENT, PFX)) {
- printk(KERN_ERR PFX "request_region failed\n");
+ pr_err("request_region failed\n");
err = -EBUSY;
goto no_port;
}
val = inb(port + CPU5WDT_STATUS_REG);
val = (val >> 2) & 1;
if (!val)
- printk(KERN_INFO PFX "sorry, was my fault\n");
+ pr_info("sorry, was my fault\n");
err = misc_register(&cpu5wdt_misc);
if (err < 0) {
- printk(KERN_ERR PFX "misc_register failed\n");
+ pr_err("misc_register failed\n");
goto no_misc;
}
- printk(KERN_INFO PFX "init success\n");
+ pr_info("init success\n");
return 0;
no_misc:
* Copyright (C) 2008 David S. Miller <davem@davemloft.net>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <asm/watchdog.h>
#define DRIVER_NAME "cpwd"
-#define PFX DRIVER_NAME ": "
#define WD_OBPNAME "watchdog"
#define WD_BADMODEL "SUNW,501-5336"
if (!p->initialized) {
if (request_irq(p->irq, &cpwd_interrupt,
IRQF_SHARED, DRIVER_NAME, p)) {
- printk(KERN_ERR PFX "Cannot register IRQ %d\n",
- p->irq);
+ pr_err("Cannot register IRQ %d\n", p->irq);
mutex_unlock(&cpwd_mutex);
return -EBUSY;
}
p = kzalloc(sizeof(*p), GFP_KERNEL);
err = -ENOMEM;
if (!p) {
- printk(KERN_ERR PFX "Unable to allocate struct cpwd.\n");
+ pr_err("Unable to allocate struct cpwd\n");
goto out;
}
p->regs = of_ioremap(&op->resource[0], 0,
4 * WD_TIMER_REGSZ, DRIVER_NAME);
if (!p->regs) {
- printk(KERN_ERR PFX "Unable to map registers.\n");
+ pr_err("Unable to map registers\n");
goto out_free;
}
options = of_find_node_by_path("/options");
err = -ENODEV;
if (!options) {
- printk(KERN_ERR PFX "Unable to find /options node.\n");
+ pr_err("Unable to find /options node\n");
goto out_iounmap;
}
err = misc_register(&p->devs[i].misc);
if (err) {
- printk(KERN_ERR "Could not register misc device for "
- "dev %d\n", i);
+ pr_err("Could not register misc device for dev %d\n",
+ i);
goto out_unregister;
}
}
cpwd_timer.data = (unsigned long) p;
cpwd_timer.expires = WD_BTIMEOUT;
- printk(KERN_INFO PFX "PLD defect workaround enabled for "
- "model " WD_BADMODEL ".\n");
+ pr_info("PLD defect workaround enabled for model %s\n",
+ WD_BADMODEL);
}
dev_set_drvdata(&op->dev, p);
* If we receive an expected close for the watchdog then we keep the timer
* running, otherwise the timer is stopped and the watchdog will expire.
*/
-#define pr_fmt(fmt) "dw_wdt: " fmt
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/bitops.h>
#include <linux/clk.h>
/* The maximum TOP (timeout period) value that can be set in the watchdog. */
#define DW_WDT_MAX_TOP 15
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
"(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
* Authors: Ray Lehtiniemi <rayl@mail.com>,
* Alessandro Zummo <a.zummo@towertech.it>
*
+ * Copyright (c) 2012 H Hartley Sweeten <hsweeten@visionengravers.com>
+ * Convert to a platform device and use the watchdog framework API
+ *
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
#include <linux/platform_device.h>
#include <linux/module.h>
-#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/timer.h>
-#include <linux/uaccess.h>
#include <linux/io.h>
-#define WDT_VERSION "0.3"
-#define PFX "ep93xx_wdt: "
+#define WDT_VERSION "0.4"
/* default timeout (secs) */
#define WDT_TIMEOUT 30
-static int nowayout = WATCHDOG_NOWAYOUT;
-static int timeout = WDT_TIMEOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
+
+static unsigned int timeout = WDT_TIMEOUT;
+module_param(timeout, uint, 0);
+MODULE_PARM_DESC(timeout,
+ "Watchdog timeout in seconds. (1<=timeout<=3600, default="
+ __MODULE_STRING(WDT_TIMEOUT) ")");
static void __iomem *mmio_base;
static struct timer_list timer;
static unsigned long next_heartbeat;
-static unsigned long wdt_status;
-static unsigned long boot_status;
-
-#define WDT_IN_USE 0
-#define WDT_OK_TO_CLOSE 1
#define EP93XX_WATCHDOG 0x00
#define EP93XX_WDSTATUS 0x04
-/* reset the wdt every ~200ms */
+/* reset the wdt every ~200ms - the heartbeat of the device is 0.250 seconds*/
#define WDT_INTERVAL (HZ/5)
-static void wdt_enable(void)
+static void ep93xx_wdt_timer_ping(unsigned long data)
{
- writel(0xaaaa, mmio_base + EP93XX_WATCHDOG);
-}
-
-static void wdt_disable(void)
-{
- writel(0xaa55, mmio_base + EP93XX_WATCHDOG);
-}
+ if (time_before(jiffies, next_heartbeat))
+ writel(0x5555, mmio_base + EP93XX_WATCHDOG);
-static inline void wdt_ping(void)
-{
- writel(0x5555, mmio_base + EP93XX_WATCHDOG);
+ /* Re-set the timer interval */
+ mod_timer(&timer, jiffies + WDT_INTERVAL);
}
-static void wdt_startup(void)
+static int ep93xx_wdt_start(struct watchdog_device *wdd)
{
next_heartbeat = jiffies + (timeout * HZ);
- wdt_enable();
+ writel(0xaaaa, mmio_base + EP93XX_WATCHDOG);
mod_timer(&timer, jiffies + WDT_INTERVAL);
+
+ return 0;
}
-static void wdt_shutdown(void)
+static int ep93xx_wdt_stop(struct watchdog_device *wdd)
{
del_timer_sync(&timer);
- wdt_disable();
+ writel(0xaa55, mmio_base + EP93XX_WATCHDOG);
+
+ return 0;
}
-static void wdt_keepalive(void)
+static int ep93xx_wdt_keepalive(struct watchdog_device *wdd)
{
/* user land ping */
next_heartbeat = jiffies + (timeout * HZ);
-}
-
-static int ep93xx_wdt_open(struct inode *inode, struct file *file)
-{
- if (test_and_set_bit(WDT_IN_USE, &wdt_status))
- return -EBUSY;
-
- clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
- wdt_startup();
-
- return nonseekable_open(inode, file);
-}
-
-static ssize_t
-ep93xx_wdt_write(struct file *file, const char __user *data, size_t len,
- loff_t *ppos)
-{
- if (len) {
- if (!nowayout) {
- size_t i;
-
- clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
- for (i = 0; i != len; i++) {
- char c;
-
- if (get_user(c, data + i))
- return -EFAULT;
-
- if (c == 'V')
- set_bit(WDT_OK_TO_CLOSE, &wdt_status);
- else
- clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
- }
- }
- wdt_keepalive();
- }
- return len;
+ return 0;
}
-static const struct watchdog_info ident = {
- .options = WDIOF_CARDRESET | WDIOF_MAGICCLOSE,
- .identity = "EP93xx Watchdog",
+static const struct watchdog_info ep93xx_wdt_ident = {
+ .options = WDIOF_CARDRESET |
+ WDIOF_MAGICCLOSE |
+ WDIOF_KEEPALIVEPING,
+ .identity = "EP93xx Watchdog",
};
-static long ep93xx_wdt_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- int ret = -ENOTTY;
-
- switch (cmd) {
- case WDIOC_GETSUPPORT:
- ret = copy_to_user((struct watchdog_info __user *)arg, &ident,
- sizeof(ident)) ? -EFAULT : 0;
- break;
-
- case WDIOC_GETSTATUS:
- ret = put_user(0, (int __user *)arg);
- break;
-
- case WDIOC_GETBOOTSTATUS:
- ret = put_user(boot_status, (int __user *)arg);
- break;
-
- case WDIOC_KEEPALIVE:
- wdt_keepalive();
- ret = 0;
- break;
-
- case WDIOC_GETTIMEOUT:
- /* actually, it is 0.250 seconds.... */
- ret = put_user(1, (int __user *)arg);
- break;
- }
- return ret;
-}
-
-static int ep93xx_wdt_release(struct inode *inode, struct file *file)
-{
- if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
- wdt_shutdown();
- else
- printk(KERN_CRIT PFX
- "Device closed unexpectedly - timer will not stop\n");
-
- clear_bit(WDT_IN_USE, &wdt_status);
- clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
- return 0;
-}
-
-static const struct file_operations ep93xx_wdt_fops = {
+static struct watchdog_ops ep93xx_wdt_ops = {
.owner = THIS_MODULE,
- .write = ep93xx_wdt_write,
- .unlocked_ioctl = ep93xx_wdt_ioctl,
- .open = ep93xx_wdt_open,
- .release = ep93xx_wdt_release,
- .llseek = no_llseek,
+ .start = ep93xx_wdt_start,
+ .stop = ep93xx_wdt_stop,
+ .ping = ep93xx_wdt_keepalive,
};
-static struct miscdevice ep93xx_wdt_miscdev = {
- .minor = WATCHDOG_MINOR,
- .name = "watchdog",
- .fops = &ep93xx_wdt_fops,
+static struct watchdog_device ep93xx_wdt_wdd = {
+ .info = &ep93xx_wdt_ident,
+ .ops = &ep93xx_wdt_ops,
};
-static void ep93xx_timer_ping(unsigned long data)
-{
- if (time_before(jiffies, next_heartbeat))
- wdt_ping();
-
- /* Re-set the timer interval */
- mod_timer(&timer, jiffies + WDT_INTERVAL);
-}
-
static int __devinit ep93xx_wdt_probe(struct platform_device *pdev)
{
struct resource *res;
if (!mmio_base)
return -ENXIO;
- err = misc_register(&ep93xx_wdt_miscdev);
-
- val = readl(mmio_base + EP93XX_WATCHDOG);
- boot_status = val & 0x01 ? 1 : 0;
-
- printk(KERN_INFO PFX "EP93XX watchdog, driver version "
- WDT_VERSION "%s\n",
- (val & 0x08) ? " (nCS1 disable detected)" : "");
-
if (timeout < 1 || timeout > 3600) {
timeout = WDT_TIMEOUT;
- printk(KERN_INFO PFX
+ dev_warn(&pdev->dev,
"timeout value must be 1<=x<=3600, using %d\n",
timeout);
}
- setup_timer(&timer, ep93xx_timer_ping, 1);
- return err;
+ val = readl(mmio_base + EP93XX_WATCHDOG);
+ ep93xx_wdt_wdd.bootstatus = (val & 0x01) ? WDIOF_CARDRESET : 0;
+ ep93xx_wdt_wdd.timeout = timeout;
+
+ watchdog_set_nowayout(&ep93xx_wdt_wdd, nowayout);
+
+ setup_timer(&timer, ep93xx_wdt_timer_ping, 1);
+
+ err = watchdog_register_device(&ep93xx_wdt_wdd);
+ if (err)
+ return err;
+
+ dev_info(&pdev->dev,
+ "EP93XX watchdog, driver version " WDT_VERSION "%s\n",
+ (val & 0x08) ? " (nCS1 disable detected)" : "");
+
+ return 0;
}
static int __devexit ep93xx_wdt_remove(struct platform_device *pdev)
{
- wdt_shutdown();
- misc_deregister(&ep93xx_wdt_miscdev);
+ watchdog_unregister_device(&ep93xx_wdt_wdd);
return 0;
}
module_platform_driver(ep93xx_wdt_driver);
-module_param(nowayout, int, 0);
-MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
-
-module_param(timeout, int, 0);
-MODULE_PARM_DESC(timeout,
- "Watchdog timeout in seconds. (1<=timeout<=3600, default="
- __MODULE_STRING(WDT_TIMEOUT) ")");
-
MODULE_AUTHOR("Ray Lehtiniemi <rayl@mail.com>,"
- "Alessandro Zummo <a.zummo@towertech.it>");
+ "Alessandro Zummo <a.zummo@towertech.it>,"
+ "H Hartley Sweeten <hsweeten@visionengravers.com>");
MODULE_DESCRIPTION("EP93xx Watchdog");
MODULE_LICENSE("GPL");
MODULE_VERSION(WDT_VERSION);
* of the on-board SUPER I/O device SMSC FDC 37B782.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#define WDT_TIMEOUT 60 /* 1 minute */
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
/* Setting interrupt line */
if (irq == 2 || irq > 15 || irq < 0) {
- printk(KERN_ERR ": invalid irq number\n");
+ pr_err("invalid irq number\n");
irq = 0; /* if invalid we disable interrupt */
}
if (irq == 0)
- printk(KERN_INFO ": interrupt disabled\n");
+ pr_info("interrupt disabled\n");
eurwdt_write_reg(WDT_TIMER_CFG, irq << 4);
static irqreturn_t eurwdt_interrupt(int irq, void *dev_id)
{
- printk(KERN_CRIT "timeout WDT timeout\n");
+ pr_crit("timeout WDT timeout\n");
#ifdef ONLY_TESTING
- printk(KERN_CRIT "Would Reboot.\n");
+ pr_crit("Would Reboot\n");
#else
- printk(KERN_CRIT "Initiating system reboot.\n");
+ pr_crit("Initiating system reboot\n");
emergency_restart();
#endif
return IRQ_HANDLED;
if (eur_expect_close == 42)
eurwdt_disable_timer();
else {
- printk(KERN_CRIT
- "eurwdt: Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
eurwdt_ping();
}
clear_bit(0, &eurwdt_is_open);
ret = request_irq(irq, eurwdt_interrupt, 0, "eurwdt", NULL);
if (ret) {
- printk(KERN_ERR "eurwdt: IRQ %d is not free.\n", irq);
+ pr_err("IRQ %d is not free\n", irq);
goto out;
}
if (!request_region(io, 2, "eurwdt")) {
- printk(KERN_ERR "eurwdt: IO %X is not free.\n", io);
+ pr_err("IO %X is not free\n", io);
ret = -EBUSY;
goto outirq;
}
ret = register_reboot_notifier(&eurwdt_notifier);
if (ret) {
- printk(KERN_ERR
- "eurwdt: can't register reboot notifier (err=%d)\n", ret);
+ pr_err("can't register reboot notifier (err=%d)\n", ret);
goto outreg;
}
ret = misc_register(&eurwdt_miscdev);
if (ret) {
- printk(KERN_ERR "eurwdt: can't misc_register on minor=%d\n",
- WATCHDOG_MINOR);
+ pr_err("can't misc_register on minor=%d\n", WATCHDOG_MINOR);
goto outreboot;
}
eurwdt_unlock_chip();
ret = 0;
- printk(KERN_INFO "Eurotech WDT driver 0.01 at %X (Interrupt %d)"
- " - timeout event: %s\n",
+ pr_info("Eurotech WDT driver 0.01 at %X (Interrupt %d) - timeout event: %s\n",
io, irq, (!strcmp("int", ev) ? "int" : "reboot"));
out:
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/err.h>
#include <linux/fs.h>
#include <linux/init.h>
{
/* Don't step on other drivers' I/O space by accident */
if (!request_muxed_region(base, 2, DRVNAME)) {
- printk(KERN_ERR DRVNAME ": I/O address 0x%04x already in use\n",
- (int)base);
+ pr_err("I/O address 0x%04x already in use\n", (int)base);
return -EBUSY;
}
{
if (timeout <= 0
|| timeout > max_timeout) {
- printk(KERN_ERR DRVNAME ": watchdog timeout out of range\n");
+ pr_err("watchdog timeout out of range\n");
return -EINVAL;
}
} else if (pw <= 5000) {
watchdog.pulse_val = 3;
} else {
- printk(KERN_ERR DRVNAME ": pulse width out of range\n");
+ pr_err("pulse width out of range\n");
err = -EINVAL;
goto exit_unlock;
}
if (ioaddr)
superio_set_bit(ioaddr, SIO_REG_MFUNCT1, 1);
} else {
- printk(KERN_ERR DRVNAME ": Invalid argument f71862fg_pin=%d\n",
- f71862fg_pin);
+ pr_err("Invalid argument f71862fg_pin=%d\n", f71862fg_pin);
return -EINVAL;
}
return 0;
if (!watchdog.expect_close) {
watchdog_keepalive();
- printk(KERN_CRIT DRVNAME
- ": Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
} else if (!nowayout) {
watchdog_stop();
}
err = misc_register(&watchdog_miscdev);
if (err) {
- printk(KERN_ERR DRVNAME
- ": cannot register miscdev on minor=%d\n",
- watchdog_miscdev.minor);
+ pr_err("cannot register miscdev on minor=%d\n",
+ watchdog_miscdev.minor);
goto exit_reboot;
}
if (start_withtimeout) {
if (start_withtimeout <= 0
|| start_withtimeout > max_timeout) {
- printk(KERN_ERR DRVNAME
- ": starting timeout out of range\n");
+ pr_err("starting timeout out of range\n");
err = -EINVAL;
goto exit_miscdev;
}
err = watchdog_start();
if (err) {
- printk(KERN_ERR DRVNAME
- ": cannot start watchdog timer\n");
+ pr_err("cannot start watchdog timer\n");
goto exit_miscdev;
}
if (nowayout)
__module_get(THIS_MODULE);
- printk(KERN_INFO DRVNAME
- ": watchdog started with initial timeout of %u sec\n",
+ pr_info("watchdog started with initial timeout of %u sec\n",
start_withtimeout);
}
devid = superio_inw(sioaddr, SIO_REG_MANID);
if (devid != SIO_FINTEK_ID) {
- pr_debug(DRVNAME ": Not a Fintek device\n");
+ pr_debug("Not a Fintek device\n");
err = -ENODEV;
goto exit;
}
err = -ENODEV;
goto exit;
default:
- printk(KERN_INFO DRVNAME ": Unrecognized Fintek device: %04x\n",
- (unsigned int)devid);
+ pr_info("Unrecognized Fintek device: %04x\n",
+ (unsigned int)devid);
err = -ENODEV;
goto exit;
}
- printk(KERN_INFO DRVNAME ": Found %s watchdog chip, revision %d\n",
+ pr_info("Found %s watchdog chip, revision %d\n",
f71808e_names[watchdog.type],
(int)superio_inb(sioaddr, SIO_REG_DEVREV));
exit:
static void __exit f71808e_exit(void)
{
if (watchdog_is_running()) {
- printk(KERN_WARNING DRVNAME
- ": Watchdog timer still running, stopping it\n");
+ pr_warn("Watchdog timer still running, stopping it\n");
watchdog_stop();
}
misc_deregister(&watchdog_miscdev);
* capabilities) a kernel-based watchdog.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/compiler.h>
#include <linux/init.h>
static char expect_close;
static DEFINE_SPINLOCK(gef_wdt_spinlock);
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
if (gef_wdt_toggle_wdc(GEF_WDC_ENABLED_FALSE,
GEF_WDC_ENABLE_SHIFT)) {
gef_wdt_service();
- printk(KERN_NOTICE "gef_wdt: watchdog activated\n");
+ pr_notice("watchdog activated\n");
}
}
{
if (gef_wdt_toggle_wdc(GEF_WDC_ENABLED_TRUE,
GEF_WDC_ENABLE_SHIFT))
- printk(KERN_NOTICE "gef_wdt: watchdog deactivated\n");
+ pr_notice("watchdog deactivated\n");
}
static void gef_wdt_set_timeout(unsigned int timeout)
if (expect_close == 42)
gef_wdt_handler_disable();
else {
- printk(KERN_CRIT
- "gef_wdt: unexpected close, not stopping timer!\n");
+ pr_crit("unexpected close, not stopping timer!\n");
gef_wdt_service();
}
expect_close = 0;
static int __init gef_wdt_init(void)
{
- printk(KERN_INFO "GE watchdog driver\n");
+ pr_info("GE watchdog driver\n");
return platform_driver_register(&gef_wdt_driver);
}
* 2 of the License, or (at your option) any later version.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/moduleparam.h>
"Watchdog timeout in seconds. 1<= timeout <=131, default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ".");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
geodewdt_disable();
module_put(THIS_MODULE);
} else {
- printk(KERN_CRIT "Unexpected close - watchdog is not stopping.\n");
+ pr_crit("Unexpected close - watchdog is not stopping\n");
geodewdt_ping();
set_bit(WDT_FLAGS_ORPHAN, &wdt_flags);
wdt_timer = cs5535_mfgpt_alloc_timer(MFGPT_TIMER_ANY, MFGPT_DOMAIN_WORKING);
if (!wdt_timer) {
- printk(KERN_ERR "geodewdt: No timers were available\n");
+ pr_err("No timers were available\n");
return -ENODEV;
}
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/device.h>
#include <linux/fs.h>
#include <linux/init.h>
static unsigned int soft_margin = DEFAULT_MARGIN; /* in seconds */
static unsigned int reload; /* the computed soft_margin */
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
static char expect_release;
static unsigned long hpwdt_is_open;
asminline_call(&cmn_regs, bios32_entrypoint);
if (cmn_regs.u1.ral != 0) {
- printk(KERN_WARNING
- "hpwdt: Call succeeded but with an error: 0x%x\n",
+ pr_warn("Call succeeded but with an error: 0x%x\n",
cmn_regs.u1.ral);
} else {
physical_bios_base = cmn_regs.u2.rebx;
}
}
- printk(KERN_DEBUG "hpwdt: CRU Base Address: 0x%lx\n",
- physical_bios_base);
- printk(KERN_DEBUG "hpwdt: CRU Offset Address: 0x%lx\n",
- physical_bios_offset);
- printk(KERN_DEBUG "hpwdt: CRU Length: 0x%lx\n",
- cru_length);
- printk(KERN_DEBUG "hpwdt: CRU Mapped Address: %p\n",
- &cru_rom_addr);
+ pr_debug("CRU Base Address: 0x%lx\n", physical_bios_base);
+ pr_debug("CRU Offset Address: 0x%lx\n", physical_bios_offset);
+ pr_debug("CRU Length: 0x%lx\n", cru_length);
+ pr_debug("CRU Mapped Address: %p\n", &cru_rom_addr);
}
iounmap(bios32_map);
return retval;
static int hpwdt_change_timer(int new_margin)
{
if (new_margin < 1 || new_margin > HPWDT_MAX_TIMER) {
- printk(KERN_WARNING
- "hpwdt: New value passed in is invalid: %d seconds.\n",
+ pr_warn("New value passed in is invalid: %d seconds\n",
new_margin);
return -EINVAL;
}
soft_margin = new_margin;
- printk(KERN_DEBUG
- "hpwdt: New timer passed in is %d seconds.\n",
- new_margin);
+ pr_debug("New timer passed in is %d seconds\n", new_margin);
reload = SECS_TO_TICKS(soft_margin);
return 0;
if (expect_release == 42) {
hpwdt_stop();
} else {
- printk(KERN_CRIT
- "hpwdt: Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
hpwdt_ping();
}
module_param(soft_margin, int, 0);
MODULE_PARM_DESC(soft_margin, "Watchdog timeout in seconds");
-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) ")");
* Includes, defines, variables, module parameters, ...
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#define ESB_VERSION "0.05"
#define ESB_MODULE_NAME "i6300ESB timer"
#define ESB_DRIVER_NAME ESB_MODULE_NAME ", v" ESB_VERSION
-#define PFX ESB_MODULE_NAME ": "
/* PCI configuration registers */
#define ESB_CONFIG_REG 0x60 /* Config register */
"Watchdog heartbeat in seconds. (1<heartbeat<2046, default="
__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
if (esb_expect_close == 42)
esb_timer_stop();
else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
esb_timer_keepalive();
}
clear_bit(0, &timer_alive);
static unsigned char __devinit esb_getdevice(struct pci_dev *pdev)
{
if (pci_enable_device(pdev)) {
- printk(KERN_ERR PFX "failed to enable device\n");
+ pr_err("failed to enable device\n");
goto err_devput;
}
if (pci_request_region(pdev, 0, ESB_MODULE_NAME)) {
- printk(KERN_ERR PFX "failed to request region\n");
+ pr_err("failed to request region\n");
goto err_disable;
}
BASEADDR = pci_ioremap_bar(pdev, 0);
if (BASEADDR == NULL) {
/* Something's wrong here, BASEADDR has to be set */
- printk(KERN_ERR PFX "failed to get BASEADDR\n");
+ pr_err("failed to get BASEADDR\n");
goto err_release;
}
/* Check that the WDT isn't already locked */
pci_read_config_byte(esb_pci, ESB_LOCK_REG, &val1);
if (val1 & ESB_WDT_LOCK)
- printk(KERN_WARNING PFX "nowayout already set\n");
+ pr_warn("nowayout already set\n");
/* Set the timer to watchdog mode and disable it for now */
pci_write_config_byte(esb_pci, ESB_LOCK_REG, 0x00);
cards_found++;
if (cards_found == 1)
- printk(KERN_INFO PFX "Intel 6300ESB WatchDog Timer Driver v%s\n",
+ pr_info("Intel 6300ESB WatchDog Timer Driver v%s\n",
ESB_VERSION);
if (cards_found > 1) {
- printk(KERN_ERR PFX "This driver only supports 1 device\n");
+ pr_err("This driver only supports 1 device\n");
return -ENODEV;
}
if not reset to the default */
if (heartbeat < 0x1 || heartbeat > 2 * 0x03ff) {
heartbeat = WATCHDOG_HEARTBEAT;
- printk(KERN_INFO PFX
- "heartbeat value must be 1<heartbeat<2046, using %d\n",
- heartbeat);
+ pr_info("heartbeat value must be 1<heartbeat<2046, using %d\n",
+ heartbeat);
}
/* Initialize the watchdog and make sure it does not run */
/* Register the watchdog so that userspace has access to it */
ret = misc_register(&esb_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto err_unmap;
}
- printk(KERN_INFO PFX
- "initialized (0x%p). heartbeat=%d sec (nowayout=%d)\n",
- BASEADDR, heartbeat, nowayout);
+ pr_info("initialized (0x%p). heartbeat=%d sec (nowayout=%d)\n",
+ BASEADDR, heartbeat, nowayout);
return 0;
err_unmap:
static void __exit watchdog_cleanup(void)
{
pci_unregister_driver(&esb_driver);
- printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+ pr_info("Watchdog Module Unloaded\n");
}
module_init(watchdog_init);
* Includes, defines, variables, module parameters, ...
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
/* Module and version information */
#define DRV_NAME "iTCO_vendor_support"
#define DRV_VERSION "1.04"
-#define PFX DRV_NAME ": "
/* Includes */
#include <linux/module.h> /* For module specific items */
static int __init iTCO_vendor_init_module(void)
{
- printk(KERN_INFO PFX "vendor-support=%d\n", vendorsupport);
+ pr_info("vendor-support=%d\n", vendorsupport);
return 0;
}
static void __exit iTCO_vendor_exit_module(void)
{
- printk(KERN_INFO PFX "Module Unloaded\n");
+ pr_info("Module Unloaded\n");
}
module_init(iTCO_vendor_init_module);
* Includes, defines, variables, module parameters, ...
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
/* Module and version information */
#define DRV_NAME "iTCO_wdt"
#define DRV_VERSION "1.07"
-#define PFX DRV_NAME ": "
/* Includes */
#include <linux/module.h> /* For module specific items */
"5..76 (TCO v1) or 3..614 (TCO v2), default="
__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
/* disable chipset's NO_REBOOT bit */
if (iTCO_wdt_unset_NO_REBOOT_bit()) {
spin_unlock(&iTCO_wdt_private.io_lock);
- printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, "
- "reboot disabled by hardware/BIOS\n");
+ pr_err("failed to reset NO_REBOOT flag, reboot disabled by hardware/BIOS\n");
return -EIO;
}
if (expect_release == 42) {
iTCO_wdt_stop();
} else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
iTCO_wdt_keepalive();
}
clear_bit(0, &is_active);
base_address &= 0x0000ff80;
if (base_address == 0x00000000) {
/* Something's wrong here, ACPIBASE has to be set */
- printk(KERN_ERR PFX "failed to get TCOBASE address, "
- "device disabled by hardware/BIOS\n");
+ pr_err("failed to get TCOBASE address, device disabled by hardware/BIOS\n");
return -ENODEV;
}
iTCO_wdt_private.iTCO_version =
if (iTCO_wdt_private.iTCO_version == 2) {
pci_read_config_dword(pdev, 0xf0, &base_address);
if ((base_address & 1) == 0) {
- printk(KERN_ERR PFX "RCBA is disabled by hardware"
- "/BIOS, device disabled\n");
+ pr_err("RCBA is disabled by hardware/BIOS, device disabled\n");
ret = -ENODEV;
goto out;
}
/* Check chipset's NO_REBOOT bit */
if (iTCO_wdt_unset_NO_REBOOT_bit() && iTCO_vendor_check_noreboot_on()) {
- printk(KERN_INFO PFX "unable to reset NO_REBOOT flag, "
- "device disabled by hardware/BIOS\n");
+ pr_info("unable to reset NO_REBOOT flag, device disabled by hardware/BIOS\n");
ret = -ENODEV; /* Cannot reset NO_REBOOT bit */
goto out_unmap;
}
/* The TCO logic uses the TCO_EN bit in the SMI_EN register */
if (!request_region(SMI_EN, 4, "iTCO_wdt")) {
- printk(KERN_ERR PFX
- "I/O address 0x%04lx already in use, "
- "device disabled\n", SMI_EN);
+ pr_err("I/O address 0x%04lx already in use, device disabled\n",
+ SMI_EN);
ret = -EIO;
goto out_unmap;
}
/* The TCO I/O registers reside in a 32-byte range pointed to
by the TCOBASE value */
if (!request_region(TCOBASE, 0x20, "iTCO_wdt")) {
- printk(KERN_ERR PFX "I/O address 0x%04lx already in use "
- "device disabled\n", TCOBASE);
+ pr_err("I/O address 0x%04lx already in use, device disabled\n",
+ TCOBASE);
ret = -EIO;
goto unreg_smi_en;
}
- printk(KERN_INFO PFX
- "Found a %s TCO device (Version=%d, TCOBASE=0x%04lx)\n",
- iTCO_chipset_info[ent->driver_data].name,
- iTCO_chipset_info[ent->driver_data].iTCO_version,
- TCOBASE);
+ pr_info("Found a %s TCO device (Version=%d, TCOBASE=0x%04lx)\n",
+ iTCO_chipset_info[ent->driver_data].name,
+ iTCO_chipset_info[ent->driver_data].iTCO_version,
+ TCOBASE);
/* Clear out the (probably old) status */
outw(0x0008, TCO1_STS); /* Clear the Time Out Status bit */
if not reset to the default */
if (iTCO_wdt_set_heartbeat(heartbeat)) {
iTCO_wdt_set_heartbeat(WATCHDOG_HEARTBEAT);
- printk(KERN_INFO PFX
- "timeout value out of range, using %d\n", heartbeat);
+ pr_info("timeout value out of range, using %d\n", heartbeat);
}
ret = misc_register(&iTCO_wdt_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto unreg_region;
}
- printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
- heartbeat, nowayout);
+ pr_info("initialized. heartbeat=%d sec (nowayout=%d)\n",
+ heartbeat, nowayout);
return 0;
}
if (!found)
- printk(KERN_INFO PFX "No device detected.\n");
+ pr_info("No device detected\n");
return ret;
}
{
int err;
- printk(KERN_INFO PFX "Intel TCO WatchDog Timer Driver v%s\n",
- DRV_VERSION);
+ pr_info("Intel TCO WatchDog Timer Driver v%s\n", DRV_VERSION);
err = platform_driver_register(&iTCO_wdt_driver);
if (err)
{
platform_device_unregister(iTCO_wdt_platform_device);
platform_driver_unregister(&iTCO_wdt_driver);
- printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+ pr_info("Watchdog Module Unloaded\n");
}
module_init(iTCO_wdt_init_module);
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/types.h>
#include <linux/miscdevice.h>
/* Module information */
#define DRV_NAME "ib700wdt"
-#define PFX DRV_NAME ": "
/*
*
"Watchdog timeout in seconds. 0<= timeout <=30, default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ".");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
if (expect_close == 42) {
ibwdt_disable();
} else {
- printk(KERN_CRIT PFX
- "WDT device closed unexpectedly. WDT will not stop!\n");
+ pr_crit("WDT device closed unexpectedly. WDT will not stop!\n");
ibwdt_ping();
}
clear_bit(0, &ibwdt_is_open);
#if WDT_START != WDT_STOP
if (!request_region(WDT_STOP, 1, "IB700 WDT")) {
- printk(KERN_ERR PFX "STOP method I/O %X is not available.\n",
- WDT_STOP);
+ pr_err("STOP method I/O %X is not available\n", WDT_STOP);
res = -EIO;
goto out_nostopreg;
}
#endif
if (!request_region(WDT_START, 1, "IB700 WDT")) {
- printk(KERN_ERR PFX "START method I/O %X is not available.\n",
- WDT_START);
+ pr_err("START method I/O %X is not available\n", WDT_START);
res = -EIO;
goto out_nostartreg;
}
* if not reset to the default */
if (ibwdt_set_heartbeat(timeout)) {
ibwdt_set_heartbeat(WATCHDOG_TIMEOUT);
- printk(KERN_INFO PFX
- "timeout value must be 0<=x<=30, using %d\n", timeout);
+ pr_info("timeout value must be 0<=x<=30, using %d\n", timeout);
}
res = misc_register(&ibwdt_miscdev);
if (res) {
- printk(KERN_ERR PFX "failed to register misc device\n");
+ pr_err("failed to register misc device\n");
goto out_nomisc;
}
return 0;
{
int err;
- printk(KERN_INFO PFX
- "WDT driver for IB700 single board computer initialising.\n");
+ pr_info("WDT driver for IB700 single board computer initialising\n");
err = platform_driver_register(&ibwdt_driver);
if (err)
{
platform_device_unregister(ibwdt_platform_device);
platform_driver_unregister(&ibwdt_driver);
- printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+ pr_info("Watchdog Module Unloaded\n");
}
module_init(ibwdt_init);
* of the GNU Public License, incorporated herein by reference.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/module.h>
ASMTYPE_SPRUCE,
};
-#define PFX "ibmasr: "
-
#define TOPAZ_ASR_REG_OFFSET 4
#define TOPAZ_ASR_TOGGLE 0x40
#define TOPAZ_ASR_DISABLE 0x80
#define SPRUCE_ASR_TOGGLE_MASK 0x02 /* bit 0: 0, then 1, then 0 */
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
static unsigned long asr_is_open;
static char asr_expect_close;
}
if (!request_region(asr_base, asr_length, "ibmasr")) {
- printk(KERN_ERR PFX "address %#x already in use\n",
- asr_base);
+ pr_err("address %#x already in use\n", asr_base);
return -EBUSY;
}
- printk(KERN_INFO PFX "found %sASR @ addr %#x\n", type, asr_base);
+ pr_info("found %sASR @ addr %#x\n", type, asr_base);
return 0;
}
if (asr_expect_close == 42)
asr_disable();
else {
- printk(KERN_CRIT PFX
- "unexpected close, not stopping watchdog!\n");
+ pr_crit("unexpected close, not stopping watchdog!\n");
asr_toggle();
}
clear_bit(0, &asr_is_open);
rc = misc_register(&asr_miscdev);
if (rc < 0) {
release_region(asr_base, asr_length);
- printk(KERN_ERR PFX "failed to register misc device\n");
+ pr_err("failed to register misc device\n");
return rc;
}
module_init(ibmasr_init);
module_exit(ibmasr_exit);
-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) ")");
#define IMX2_WDT_SEQ1 0x5555 /* -> service sequence 1 */
#define IMX2_WDT_SEQ2 0xAAAA /* -> service sequence 2 */
+#define IMX2_WDT_WRSR 0x04 /* Reset Status Register */
+#define IMX2_WDT_WRSR_TOUT (1 << 1) /* -> Reset due to Timeout */
+
#define IMX2_WDT_MAX_TIME 128
#define IMX2_WDT_DEFAULT_TIME 60 /* in seconds */
static struct miscdevice imx2_wdt_miscdev;
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
void __user *argp = (void __user *)arg;
int __user *p = argp;
int new_value;
+ u16 val;
switch (cmd) {
case WDIOC_GETSUPPORT:
sizeof(struct watchdog_info)) ? -EFAULT : 0;
case WDIOC_GETSTATUS:
- case WDIOC_GETBOOTSTATUS:
return put_user(0, p);
+ case WDIOC_GETBOOTSTATUS:
+ val = __raw_readw(imx2_wdt.base + IMX2_WDT_WRSR);
+ new_value = val & IMX2_WDT_WRSR_TOUT ? WDIOF_CARDRESET : 0;
+ return put_user(new_value, p);
+
case WDIOC_KEEPALIVE:
imx2_wdt_ping();
return 0;
* based on softdog.c by Alan Cox <alan@lxorguk.ukuu.org.uk>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/uaccess.h>
#include <asm/sgi/mc.h>
-#define PFX "indydog: "
static unsigned long indydog_alive;
static DEFINE_SPINLOCK(indydog_lock);
#define WATCHDOG_TIMEOUT 30 /* 30 sec default timeout */
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
sgimc->cpuctrl0 = mc_ctrl0;
spin_unlock(&indydog_lock);
- printk(KERN_INFO PFX "Stopped watchdog timer.\n");
+ pr_info("Stopped watchdog timer\n");
}
static void indydog_ping(void)
indydog_start();
indydog_ping();
- printk(KERN_INFO "Started watchdog timer.\n");
+ pr_info("Started watchdog timer\n");
return nonseekable_open(inode, file);
}
.notifier_call = indydog_notify_sys,
};
-static char banner[] __initdata =
- KERN_INFO PFX "Hardware Watchdog Timer for SGI IP22: 0.3\n";
-
static int __init watchdog_init(void)
{
int ret;
ret = register_reboot_notifier(&indydog_notifier);
if (ret) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", ret);
+ pr_err("cannot register reboot notifier (err=%d)\n", ret);
return ret;
}
ret = misc_register(&indydog_miscdev);
if (ret) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
unregister_reboot_notifier(&indydog_notifier);
return ret;
}
- printk(banner);
+ pr_info("Hardware Watchdog Timer for SGI IP22: 0.3\n");
return 0;
}
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/compiler.h>
#include <linux/module.h>
#include <linux/kernel.h>
static void watchdog_fire(void)
{
if (force_boot) {
- printk(KERN_CRIT PFX "Initiating system reboot.\n");
+ pr_crit("Initiating system reboot\n");
emergency_restart();
- printk(KERN_CRIT PFX "Reboot didn't ?????\n");
+ pr_crit("Reboot didn't ?????\n");
}
else {
- printk(KERN_CRIT PFX "Immediate Reboot Disabled\n");
- printk(KERN_CRIT PFX
- "System will reset when watchdog timer times out!\n");
+ pr_crit("Immediate Reboot Disabled\n");
+ pr_crit("System will reset when watchdog timer times out!\n");
}
}
{
if ((new_margin < MIN_TIME_CYCLE) ||
(new_margin > MAX_TIME - timer_set)) {
- pr_debug("Watchdog timer: value of new_margin %d is out of the range %d to %d\n",
- new_margin, MIN_TIME_CYCLE, MAX_TIME - timer_set);
+ pr_debug("value of new_margin %d is out of the range %d to %d\n",
+ new_margin, MIN_TIME_CYCLE, MAX_TIME - timer_set);
return -EINVAL;
}
return 0;
int int_status;
int_status = ioread32(watchdog_device.timer_interrupt_status_addr);
- pr_debug("Watchdog timer: irq, int_status: %x\n", int_status);
+ pr_debug("irq, int_status: %x\n", int_status);
if (int_status != 0)
return IRQ_NONE;
/* has the timer been started? If not, then this is spurious */
if (watchdog_device.timer_started == 0) {
- pr_debug("Watchdog timer: spurious interrupt received\n");
+ pr_debug("spurious interrupt received\n");
return IRQ_HANDLED;
}
(watchdog_device.timer_set - timer_margin)
* watchdog_device.timer_tbl_ptr->freq_hz;
- pr_debug("Watchdog timer: set_heartbeat: timer freq is %d\n",
- watchdog_device.timer_tbl_ptr->freq_hz);
- pr_debug("Watchdog timer: set_heartbeat: timer_set is %x (hex)\n",
- watchdog_device.timer_set);
- pr_debug("Watchdog timer: set_hearbeat: timer_margin is %x (hex)\n",
- timer_margin);
- pr_debug("Watchdog timer: set_heartbeat: threshold is %x (hex)\n",
- watchdog_device.threshold);
- pr_debug("Watchdog timer: set_heartbeat: soft_threshold is %x (hex)\n",
- watchdog_device.soft_threshold);
+ pr_debug("set_heartbeat: timer freq is %d\n",
+ watchdog_device.timer_tbl_ptr->freq_hz);
+ pr_debug("set_heartbeat: timer_set is %x (hex)\n",
+ watchdog_device.timer_set);
+ pr_debug("set_hearbeat: timer_margin is %x (hex)\n", timer_margin);
+ pr_debug("set_heartbeat: threshold is %x (hex)\n",
+ watchdog_device.threshold);
+ pr_debug("set_heartbeat: soft_threshold is %x (hex)\n",
+ watchdog_device.soft_threshold);
/* Adjust thresholds by FREQ_ADJUSTMENT factor, to make the */
/* watchdog timing come out right. */
if (MAX_RETRY < retry_count++) {
/* Unable to set timer value */
- pr_err("Watchdog timer: Unable to set timer\n");
+ pr_err("Unable to set timer\n");
return -ENODEV;
}
*/
if (!test_and_clear_bit(0, &watchdog_device.driver_open)) {
- pr_debug("Watchdog timer: intel_scu_release, without open\n");
+ pr_debug("intel_scu_release, without open\n");
return -ENOTTY;
}
if (!watchdog_device.timer_started) {
/* Just close, since timer has not been started */
- pr_debug("Watchdog timer: closed, without starting timer\n");
+ pr_debug("closed, without starting timer\n");
return 0;
}
- printk(KERN_CRIT PFX
- "Unexpected close of /dev/watchdog!\n");
+ pr_crit("Unexpected close of /dev/watchdog!\n");
/* Since the timer was started, prevent future reopens */
watchdog_device.driver_closed = 1;
/* Check value of timer_set boot parameter */
if ((timer_set < MIN_TIME_CYCLE) ||
(timer_set > MAX_TIME - MIN_TIME_CYCLE)) {
- pr_err("Watchdog timer: value of timer_set %x (hex) "
- "is out of range from %x to %x (hex)\n",
- timer_set, MIN_TIME_CYCLE, MAX_TIME - MIN_TIME_CYCLE);
+ pr_err("value of timer_set %x (hex) is out of range from %x to %x (hex)\n",
+ timer_set, MIN_TIME_CYCLE, MAX_TIME - MIN_TIME_CYCLE);
return -EINVAL;
}
watchdog_device.timer_tbl_ptr = sfi_get_mtmr(sfi_mtimer_num-1);
if (watchdog_device.timer_tbl_ptr == NULL) {
- pr_debug("Watchdog timer - Intel SCU watchdog: timer is not available\n");
+ pr_debug("timer is not available\n");
return -ENODEV;
}
/* make sure the timer exists */
if (watchdog_device.timer_tbl_ptr->phys_addr == 0) {
- pr_debug("Watchdog timer - Intel SCU watchdog - timer %d does not have valid physical memory\n",
- sfi_mtimer_num);
+ pr_debug("timer %d does not have valid physical memory\n",
+ sfi_mtimer_num);
return -ENODEV;
}
if (watchdog_device.timer_tbl_ptr->irq == 0) {
- pr_debug("Watchdog timer: timer %d invalid irq\n",
- sfi_mtimer_num);
+ pr_debug("timer %d invalid irq\n", sfi_mtimer_num);
return -ENODEV;
}
20);
if (tmp_addr == NULL) {
- pr_debug("Watchdog timer: timer unable to ioremap\n");
+ pr_debug("timer unable to ioremap\n");
return -ENOMEM;
}
ret = register_reboot_notifier(&watchdog_device.intel_scu_notifier);
if (ret) {
- pr_err("Watchdog timer: cannot register notifier %d)\n", ret);
+ pr_err("cannot register notifier %d)\n", ret);
goto register_reboot_error;
}
ret = misc_register(&watchdog_device.miscdev);
if (ret) {
- pr_err("Watchdog timer: cannot register miscdev %d err =%d\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev %d err =%d\n",
+ WATCHDOG_MINOR, ret);
goto misc_register_error;
}
IRQF_SHARED, "watchdog",
&watchdog_device.timer_load_count_addr);
if (ret) {
- pr_err("Watchdog timer: error requesting irq %d\n", ret);
+ pr_err("error requesting irq %d\n", ret);
goto request_irq_error;
}
/* Make sure timer is disabled before returning */
#ifndef __INTEL_SCU_WATCHDOG_H
#define __INTEL_SCU_WATCHDOG_H
-#define PFX "Intel_SCU: "
#define WDT_VER "0.3"
/* minimum time between interrupts */
* Dan Williams <dan.j.williams@intel.com>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/uaccess.h>
#include <mach/hardware.h>
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
static unsigned long wdt_status;
static unsigned long boot_status;
static DEFINE_SPINLOCK(wdt_lock);
write_wdtcr(IOP_WDTCR_DIS);
clear_bit(WDT_ENABLED, &wdt_status);
spin_unlock(&wdt_lock);
- printk(KERN_INFO "WATCHDOG: Disabled\n");
+ pr_info("Disabled\n");
return 0;
} else
return 1;
*/
if (state != 0) {
wdt_enable();
- printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
- "reset in %lu seconds\n", iop_watchdog_timeout());
+ pr_crit("Device closed unexpectedly - reset in %lu seconds\n",
+ iop_watchdog_timeout());
}
clear_bit(WDT_IN_USE, &wdt_status);
with an open */
ret = misc_register(&iop_wdt_miscdev);
if (ret == 0)
- printk(KERN_INFO "iop watchdog timer: timeout %lu sec\n",
- iop_watchdog_timeout());
+ pr_info("timeout %lu sec\n", iop_watchdog_timeout());
return ret;
}
module_init(iop_wdt_init);
module_exit(iop_wdt_exit);
-module_param(nowayout, int, 0);
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
MODULE_AUTHOR("Curt E Bruns <curt.e.bruns@intel.com>");
* software is provided AS-IS with no warranties.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/ioport.h>
+#define DEBUG
#define NAME "it8712f_wdt"
MODULE_AUTHOR("Jorge Boncompte - DTI2 <jorge@dti2.net>");
module_param(margin, int, 0);
MODULE_PARM_DESC(margin, "Watchdog margin in seconds");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close");
static unsigned long wdt_open;
*/
if (units <= max_units) {
config |= WDT_UNIT_SEC; /* else UNIT is MINUTES */
- printk(KERN_INFO NAME ": timer margin %d seconds\n", units);
+ pr_info("timer margin %d seconds\n", units);
} else {
units /= 60;
- printk(KERN_INFO NAME ": timer margin %d minutes\n", units);
+ pr_info("timer margin %d minutes\n", units);
}
superio_outb(config, WDT_CONFIG);
if (ret)
return ret;
- printk(KERN_DEBUG NAME ": enabling watchdog timer\n");
+ pr_debug("enabling watchdog timer\n");
superio_select(LDN_GPIO);
superio_outb(wdt_control_reg, WDT_CONTROL);
if (ret)
return ret;
- printk(KERN_DEBUG NAME ": disabling watchdog timer\n");
+ pr_debug("disabling watchdog timer\n");
superio_select(LDN_GPIO);
superio_outb(0, WDT_CONFIG);
static int it8712f_wdt_release(struct inode *inode, struct file *file)
{
if (expect_close != 42) {
- printk(KERN_WARNING NAME
- ": watchdog device closed unexpectedly, will not"
- " disable the watchdog timer\n");
+ pr_warn("watchdog device closed unexpectedly, will not disable the watchdog timer\n");
} else if (!nowayout) {
if (it8712f_wdt_disable())
- printk(KERN_WARNING NAME "Watchdog disable failed\n");
+ pr_warn("Watchdog disable failed\n");
}
expect_close = 0;
clear_bit(0, &wdt_open);
superio_select(LDN_GAME);
superio_outb(1, ACT_REG);
if (!(superio_inb(ACT_REG) & 0x01)) {
- printk(KERN_ERR NAME ": Device not activated, skipping\n");
+ pr_err("Device not activated, skipping\n");
goto exit;
}
*address = superio_inw(BASE_REG);
if (*address == 0) {
- printk(KERN_ERR NAME ": Base address not set, skipping\n");
+ pr_err("Base address not set, skipping\n");
goto exit;
}
if (margin > (max_units * 60))
margin = (max_units * 60);
- printk(KERN_INFO NAME ": Found IT%04xF chip revision %d - "
- "using DogFood address 0x%x\n",
+ pr_info("Found IT%04xF chip revision %d - using DogFood address 0x%x\n",
chip_type, revision, *address);
exit:
return -ENODEV;
if (!request_region(address, 1, "IT8712F Watchdog")) {
- printk(KERN_WARNING NAME ": watchdog I/O region busy\n");
+ pr_warn("watchdog I/O region busy\n");
return -EBUSY;
}
err = it8712f_wdt_disable();
if (err) {
- printk(KERN_ERR NAME ": unable to disable watchdog timer.\n");
+ pr_err("unable to disable watchdog timer\n");
goto out;
}
err = register_reboot_notifier(&it8712f_wdt_notifier);
if (err) {
- printk(KERN_ERR NAME ": unable to register reboot notifier\n");
+ pr_err("unable to register reboot notifier\n");
goto out;
}
err = misc_register(&it8712f_wdt_miscdev);
if (err) {
- printk(KERN_ERR NAME
- ": cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, err);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, err);
goto reboot_out;
}
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#define WATCHDOG_VERSION "1.14"
#define WATCHDOG_NAME "IT87 WDT"
-#define PFX WATCHDOG_NAME ": "
#define DRIVER_VERSION WATCHDOG_NAME " driver, v" WATCHDOG_VERSION "\n"
#define WD_MAGIC 'V'
static int exclusive = DEFAULT_EXCLUSIVE;
static int timeout = DEFAULT_TIMEOUT;
static int testmode = DEFAULT_TESTMODE;
-static int nowayout = DEFAULT_NOWAYOUT;
+static bool nowayout = DEFAULT_NOWAYOUT;
module_param(nogameport, int, 0);
MODULE_PARM_DESC(nogameport, "Forbid the activation of game port, default="
module_param(testmode, int, 0);
MODULE_PARM_DESC(testmode, "Watchdog test mode (1 = no reboot), default="
__MODULE_STRING(DEFAULT_TESTMODE));
-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));
clear_bit(WDTS_TIMER_RUN, &wdt_status);
} else {
wdt_keepalive();
- printk(KERN_CRIT PFX
- "unexpected close, not stopping watchdog!\n");
+ pr_crit("unexpected close, not stopping watchdog!\n");
}
}
clear_bit(WDTS_DEV_OPEN, &wdt_status);
try_gameport = 0;
break;
case IT8705_ID:
- printk(KERN_ERR PFX
- "Unsupported Chip found, Chip %04x Revision %02x\n",
+ pr_err("Unsupported Chip found, Chip %04x Revision %02x\n",
chip_type, chip_rev);
return -ENODEV;
case NO_DEV_ID:
- printk(KERN_ERR PFX "no device\n");
+ pr_err("no device\n");
return -ENODEV;
default:
- printk(KERN_ERR PFX
- "Unknown Chip found, Chip %04x Revision %04x\n",
+ pr_err("Unknown Chip found, Chip %04x Revision %04x\n",
chip_type, chip_rev);
return -ENODEV;
}
if (!test_bit(WDTS_USE_GP, &wdt_status)) {
if (!request_region(CIR_BASE, 8, WATCHDOG_NAME)) {
if (gp_rreq_fail)
- printk(KERN_ERR PFX
- "I/O Address 0x%04x and 0x%04x"
- " already in use\n", base, CIR_BASE);
+ pr_err("I/O Address 0x%04x and 0x%04x already in use\n",
+ base, CIR_BASE);
else
- printk(KERN_ERR PFX
- "I/O Address 0x%04x already in use\n",
- CIR_BASE);
+ pr_err("I/O Address 0x%04x already in use\n",
+ CIR_BASE);
rc = -EIO;
goto err_out;
}
if (timeout < 1 || timeout > max_units * 60) {
timeout = DEFAULT_TIMEOUT;
- printk(KERN_WARNING PFX
- "Timeout value out of range, use default %d sec\n",
- DEFAULT_TIMEOUT);
+ pr_warn("Timeout value out of range, use default %d sec\n",
+ DEFAULT_TIMEOUT);
}
if (timeout > max_units)
rc = register_reboot_notifier(&wdt_notifier);
if (rc) {
- printk(KERN_ERR PFX
- "Cannot register reboot notifier (err=%d)\n", rc);
+ pr_err("Cannot register reboot notifier (err=%d)\n", rc);
goto err_out_region;
}
rc = misc_register(&wdt_miscdev);
if (rc) {
- printk(KERN_ERR PFX
- "Cannot register miscdev on minor=%d (err=%d)\n",
- wdt_miscdev.minor, rc);
+ pr_err("Cannot register miscdev on minor=%d (err=%d)\n",
+ wdt_miscdev.minor, rc);
goto err_out_reboot;
}
outb(0x09, CIR_IER(base));
}
- printk(KERN_INFO PFX "Chip IT%04x revision %d initialized. "
- "timeout=%d sec (nowayout=%d testmode=%d exclusive=%d "
- "nogameport=%d)\n", chip_type, chip_rev, timeout,
+ pr_info("Chip IT%04x revision %d initialized. timeout=%d sec (nowayout=%d testmode=%d exclusive=%d nogameport=%d)\n",
+ chip_type, chip_rev, timeout,
nowayout, testmode, exclusive, nogameport);
superio_exit();
* warranty of any kind, whether express or implied.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/uaccess.h>
#include <mach/hardware.h>
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
static unsigned int heartbeat = 60; /* (secs) Default is 1 minute */
static unsigned long wdt_status;
static DEFINE_SPINLOCK(wdt_lock);
if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
wdt_disable();
else
- printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
- "timer will not stop\n");
+ pr_crit("Device closed unexpectedly - timer will not stop\n");
clear_bit(WDT_IN_USE, &wdt_status);
clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
static int __init ixp2000_wdt_init(void)
{
if ((*IXP2000_PRODUCT_ID & 0x001ffef0) == 0x00000000) {
- printk(KERN_INFO "Unable to use IXP2000 watchdog due to IXP2800 erratum #25.\n");
+ pr_info("Unable to use IXP2000 watchdog due to IXP2800 erratum #25\n");
return -EIO;
}
wdt_tick_rate = (*IXP2000_T1_CLD * HZ) / 256;
module_param(heartbeat, int, 0);
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default 60s)");
-module_param(nowayout, int, 0);
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
MODULE_LICENSE("GPL");
* warranty of any kind, whether express or implied.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/uaccess.h>
#include <mach/hardware.h>
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
static int heartbeat = 60; /* (secs) Default is 1 minute */
static unsigned long wdt_status;
static unsigned long boot_status;
if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
wdt_disable();
else
- printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
- "timer will not stop\n");
+ pr_crit("Device closed unexpectedly - timer will not stop\n");
clear_bit(WDT_IN_USE, &wdt_status);
clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
int ret;
if (!(read_cpuid_id() & 0xf) && !cpu_is_ixp46x()) {
- printk(KERN_ERR "IXP4XXX Watchdog: Rev. A0 IXP42x CPU detected"
- " - watchdog disabled\n");
+ pr_err("Rev. A0 IXP42x CPU detected - watchdog disabled\n");
return -ENODEV;
}
WDIOF_CARDRESET : 0;
ret = misc_register(&ixp4xx_wdt_miscdev);
if (ret == 0)
- printk(KERN_INFO "IXP4xx Watchdog Timer: heartbeat %d sec\n",
- heartbeat);
+ pr_info("timer heartbeat %d sec\n", heartbeat);
return ret;
}
module_param(heartbeat, int, 0);
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default 60s)");
-module_param(nowayout, int, 0);
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
MODULE_LICENSE("GPL");
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/init.h>
-#include <linux/bitops.h>
#include <linux/platform_device.h>
-#include <linux/spinlock.h>
-#include <linux/uaccess.h>
#include <linux/io.h>
#include <linux/device.h>
#include <linux/clk.h>
#include <linux/slab.h>
+#include <linux/err.h>
#include <asm/mach-jz4740/timer.h>
#define JZ_WDT_CLOCK_RTC 0x2
#define JZ_WDT_CLOCK_EXT 0x4
-#define WDT_IN_USE 0
-#define WDT_OK_TO_CLOSE 1
-
#define JZ_WDT_CLOCK_DIV_SHIFT 3
#define JZ_WDT_CLOCK_DIV_1 (0 << JZ_WDT_CLOCK_DIV_SHIFT)
#define DEFAULT_HEARTBEAT 5
#define MAX_HEARTBEAT 2048
-static struct {
- void __iomem *base;
- struct resource *mem;
- struct clk *rtc_clk;
- unsigned long status;
-} jz4740_wdt;
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
+MODULE_PARM_DESC(nowayout,
+ "Watchdog cannot be stopped once started (default="
+ __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-static int heartbeat = DEFAULT_HEARTBEAT;
+static unsigned int heartbeat = DEFAULT_HEARTBEAT;
+module_param(heartbeat, uint, 0);
+MODULE_PARM_DESC(heartbeat,
+ "Watchdog heartbeat period in seconds from 1 to "
+ __MODULE_STRING(MAX_HEARTBEAT) ", default "
+ __MODULE_STRING(DEFAULT_HEARTBEAT));
+struct jz4740_wdt_drvdata {
+ struct watchdog_device wdt;
+ void __iomem *base;
+ struct clk *rtc_clk;
+};
-static void jz4740_wdt_service(void)
+static int jz4740_wdt_ping(struct watchdog_device *wdt_dev)
{
- writew(0x0, jz4740_wdt.base + JZ_REG_WDT_TIMER_COUNTER);
+ struct jz4740_wdt_drvdata *drvdata = watchdog_get_drvdata(wdt_dev);
+
+ writew(0x0, drvdata->base + JZ_REG_WDT_TIMER_COUNTER);
+ return 0;
}
-static void jz4740_wdt_set_heartbeat(int new_heartbeat)
+static int jz4740_wdt_set_timeout(struct watchdog_device *wdt_dev,
+ unsigned int new_timeout)
{
+ struct jz4740_wdt_drvdata *drvdata = watchdog_get_drvdata(wdt_dev);
unsigned int rtc_clk_rate;
unsigned int timeout_value;
unsigned short clock_div = JZ_WDT_CLOCK_DIV_1;
- heartbeat = new_heartbeat;
-
- rtc_clk_rate = clk_get_rate(jz4740_wdt.rtc_clk);
+ rtc_clk_rate = clk_get_rate(drvdata->rtc_clk);
- timeout_value = rtc_clk_rate * heartbeat;
+ timeout_value = rtc_clk_rate * new_timeout;
while (timeout_value > 0xffff) {
if (clock_div == JZ_WDT_CLOCK_DIV_1024) {
/* Requested timeout too high;
clock_div += (1 << JZ_WDT_CLOCK_DIV_SHIFT);
}
- writeb(0x0, jz4740_wdt.base + JZ_REG_WDT_COUNTER_ENABLE);
- writew(clock_div, jz4740_wdt.base + JZ_REG_WDT_TIMER_CONTROL);
+ writeb(0x0, drvdata->base + JZ_REG_WDT_COUNTER_ENABLE);
+ writew(clock_div, drvdata->base + JZ_REG_WDT_TIMER_CONTROL);
- writew((u16)timeout_value, jz4740_wdt.base + JZ_REG_WDT_TIMER_DATA);
- writew(0x0, jz4740_wdt.base + JZ_REG_WDT_TIMER_COUNTER);
+ writew((u16)timeout_value, drvdata->base + JZ_REG_WDT_TIMER_DATA);
+ writew(0x0, drvdata->base + JZ_REG_WDT_TIMER_COUNTER);
writew(clock_div | JZ_WDT_CLOCK_RTC,
- jz4740_wdt.base + JZ_REG_WDT_TIMER_CONTROL);
+ drvdata->base + JZ_REG_WDT_TIMER_CONTROL);
- writeb(0x1, jz4740_wdt.base + JZ_REG_WDT_COUNTER_ENABLE);
-}
+ writeb(0x1, drvdata->base + JZ_REG_WDT_COUNTER_ENABLE);
-static void jz4740_wdt_enable(void)
-{
- jz4740_timer_enable_watchdog();
- jz4740_wdt_set_heartbeat(heartbeat);
-}
-
-static void jz4740_wdt_disable(void)
-{
- jz4740_timer_disable_watchdog();
- writeb(0x0, jz4740_wdt.base + JZ_REG_WDT_COUNTER_ENABLE);
+ wdt_dev->timeout = new_timeout;
+ return 0;
}
-static int jz4740_wdt_open(struct inode *inode, struct file *file)
+static int jz4740_wdt_start(struct watchdog_device *wdt_dev)
{
- if (test_and_set_bit(WDT_IN_USE, &jz4740_wdt.status))
- return -EBUSY;
-
- jz4740_wdt_enable();
+ jz4740_timer_enable_watchdog();
+ jz4740_wdt_set_timeout(wdt_dev, wdt_dev->timeout);
- return nonseekable_open(inode, file);
+ return 0;
}
-static ssize_t jz4740_wdt_write(struct file *file, const char *data,
- size_t len, loff_t *ppos)
+static int jz4740_wdt_stop(struct watchdog_device *wdt_dev)
{
- if (len) {
- size_t i;
-
- clear_bit(WDT_OK_TO_CLOSE, &jz4740_wdt.status);
- for (i = 0; i != len; i++) {
- char c;
+ struct jz4740_wdt_drvdata *drvdata = watchdog_get_drvdata(wdt_dev);
- if (get_user(c, data + i))
- return -EFAULT;
-
- if (c == 'V')
- set_bit(WDT_OK_TO_CLOSE, &jz4740_wdt.status);
- }
- jz4740_wdt_service();
- }
+ jz4740_timer_disable_watchdog();
+ writeb(0x0, drvdata->base + JZ_REG_WDT_COUNTER_ENABLE);
- return len;
+ return 0;
}
-static const struct watchdog_info ident = {
- .options = WDIOF_KEEPALIVEPING,
+static const struct watchdog_info jz4740_wdt_info = {
+ .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
.identity = "jz4740 Watchdog",
};
-static long jz4740_wdt_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- int ret = -ENOTTY;
- int heartbeat_seconds;
-
- switch (cmd) {
- case WDIOC_GETSUPPORT:
- ret = copy_to_user((struct watchdog_info *)arg, &ident,
- sizeof(ident)) ? -EFAULT : 0;
- break;
-
- case WDIOC_GETSTATUS:
- case WDIOC_GETBOOTSTATUS:
- ret = put_user(0, (int *)arg);
- break;
-
- case WDIOC_KEEPALIVE:
- jz4740_wdt_service();
- return 0;
-
- case WDIOC_SETTIMEOUT:
- if (get_user(heartbeat_seconds, (int __user *)arg))
- return -EFAULT;
-
- jz4740_wdt_set_heartbeat(heartbeat_seconds);
- return 0;
-
- case WDIOC_GETTIMEOUT:
- return put_user(heartbeat, (int *)arg);
-
- default:
- break;
- }
-
- return ret;
-}
-
-static int jz4740_wdt_release(struct inode *inode, struct file *file)
-{
- jz4740_wdt_service();
-
- if (test_and_clear_bit(WDT_OK_TO_CLOSE, &jz4740_wdt.status))
- jz4740_wdt_disable();
-
- clear_bit(WDT_IN_USE, &jz4740_wdt.status);
- return 0;
-}
-
-static const struct file_operations jz4740_wdt_fops = {
+static const struct watchdog_ops jz4740_wdt_ops = {
.owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = jz4740_wdt_write,
- .unlocked_ioctl = jz4740_wdt_ioctl,
- .open = jz4740_wdt_open,
- .release = jz4740_wdt_release,
-};
-
-static struct miscdevice jz4740_wdt_miscdev = {
- .minor = WATCHDOG_MINOR,
- .name = "watchdog",
- .fops = &jz4740_wdt_fops,
+ .start = jz4740_wdt_start,
+ .stop = jz4740_wdt_stop,
+ .ping = jz4740_wdt_ping,
+ .set_timeout = jz4740_wdt_set_timeout,
};
static int __devinit jz4740_wdt_probe(struct platform_device *pdev)
{
- int ret = 0, size;
- struct resource *res;
- struct device *dev = &pdev->dev;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res == NULL) {
- dev_err(dev, "failed to get memory region resource\n");
- return -ENXIO;
+ struct jz4740_wdt_drvdata *drvdata;
+ struct watchdog_device *jz4740_wdt;
+ struct resource *res;
+ int ret;
+
+ drvdata = devm_kzalloc(&pdev->dev, sizeof(struct jz4740_wdt_drvdata),
+ GFP_KERNEL);
+ if (!drvdata) {
+ dev_err(&pdev->dev, "Unable to alloacate watchdog device\n");
+ return -ENOMEM;
}
- size = resource_size(res);
- jz4740_wdt.mem = request_mem_region(res->start, size, pdev->name);
- if (jz4740_wdt.mem == NULL) {
- dev_err(dev, "failed to get memory region\n");
- return -EBUSY;
- }
+ if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
+ heartbeat = DEFAULT_HEARTBEAT;
- jz4740_wdt.base = ioremap_nocache(res->start, size);
- if (jz4740_wdt.base == NULL) {
- dev_err(dev, "failed to map memory region\n");
+ jz4740_wdt = &drvdata->wdt;
+ jz4740_wdt->info = &jz4740_wdt_info;
+ jz4740_wdt->ops = &jz4740_wdt_ops;
+ jz4740_wdt->timeout = heartbeat;
+ jz4740_wdt->min_timeout = 1;
+ jz4740_wdt->max_timeout = MAX_HEARTBEAT;
+ watchdog_set_nowayout(jz4740_wdt, nowayout);
+ watchdog_set_drvdata(jz4740_wdt, drvdata);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ drvdata->base = devm_request_and_ioremap(&pdev->dev, res);
+ if (drvdata->base == NULL) {
ret = -EBUSY;
- goto err_release_region;
+ goto err_out;
}
- jz4740_wdt.rtc_clk = clk_get(NULL, "rtc");
- if (IS_ERR(jz4740_wdt.rtc_clk)) {
- dev_err(dev, "cannot find RTC clock\n");
- ret = PTR_ERR(jz4740_wdt.rtc_clk);
- goto err_iounmap;
+ drvdata->rtc_clk = clk_get(NULL, "rtc");
+ if (IS_ERR(drvdata->rtc_clk)) {
+ dev_err(&pdev->dev, "cannot find RTC clock\n");
+ ret = PTR_ERR(drvdata->rtc_clk);
+ goto err_out;
}
- ret = misc_register(&jz4740_wdt_miscdev);
- if (ret < 0) {
- dev_err(dev, "cannot register misc device\n");
+ ret = watchdog_register_device(&drvdata->wdt);
+ if (ret < 0)
goto err_disable_clk;
- }
+ platform_set_drvdata(pdev, drvdata);
return 0;
err_disable_clk:
- clk_put(jz4740_wdt.rtc_clk);
-err_iounmap:
- iounmap(jz4740_wdt.base);
-err_release_region:
- release_mem_region(jz4740_wdt.mem->start,
- resource_size(jz4740_wdt.mem));
+ clk_put(drvdata->rtc_clk);
+err_out:
return ret;
}
-
static int __devexit jz4740_wdt_remove(struct platform_device *pdev)
{
- jz4740_wdt_disable();
- misc_deregister(&jz4740_wdt_miscdev);
- clk_put(jz4740_wdt.rtc_clk);
+ struct jz4740_wdt_drvdata *drvdata = platform_get_drvdata(pdev);
- iounmap(jz4740_wdt.base);
- jz4740_wdt.base = NULL;
-
- release_mem_region(jz4740_wdt.mem->start,
- resource_size(jz4740_wdt.mem));
- jz4740_wdt.mem = NULL;
+ jz4740_wdt_stop(&drvdata->wdt);
+ watchdog_unregister_device(&drvdata->wdt);
+ clk_put(drvdata->rtc_clk);
return 0;
}
-
static struct platform_driver jz4740_wdt_driver = {
.probe = jz4740_wdt_probe,
.remove = __devexit_p(jz4740_wdt_remove),
MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>");
MODULE_DESCRIPTION("jz4740 Watchdog Driver");
-
-module_param(heartbeat, int, 0);
-MODULE_PARM_DESC(heartbeat,
- "Watchdog heartbeat period in seconds from 1 to "
- __MODULE_STRING(MAX_HEARTBEAT) ", default "
- __MODULE_STRING(DEFAULT_HEARTBEAT));
-
MODULE_LICENSE("GPL");
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
MODULE_ALIAS("platform:jz4740-wdt");
* published by the Free Software Foundation.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/fs.h>
#define WDT_MAX_TIME 171 /* seconds */
static int wdt_time = WDT_DEFAULT_TIME;
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
module_param(wdt_time, int, 0);
MODULE_PARM_DESC(wdt_time, "Watchdog time in seconds. (default="
__MODULE_STRING(WDT_DEFAULT_TIME) ")");
#ifdef CONFIG_WATCHDOG_NOWAYOUT
-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) ")");
#endif
if (res)
return res;
- printk(KERN_INFO "KS8695 Watchdog Timer enabled (%d seconds%s)\n",
- wdt_time, nowayout ? ", nowayout" : "");
+ pr_info("KS8695 Watchdog Timer enabled (%d seconds%s)\n",
+ wdt_time, nowayout ? ", nowayout" : "");
return 0;
}
* Based on EP93xx wdt driver
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/miscdevice.h>
#define LTQ_WDT_DIVIDER 0x40000
#define LTQ_MAX_TIMEOUT ((1 << 16) - 1) /* the reload field is 16 bit */
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
static void __iomem *ltq_wdt_membase;
static unsigned long ltq_io_region_clk_rate;
if (ltq_wdt_ok_to_close)
ltq_wdt_disable();
else
- pr_err("ltq_wdt: watchdog closed without warning\n");
+ pr_err("watchdog closed without warning\n");
ltq_wdt_ok_to_close = 0;
clear_bit(0, <q_wdt_in_use);
module_init(init_ltq_wdt);
module_exit(exit_ltq_wdt);
-module_param(nowayout, int, 0);
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
* warranty of any kind, whether express or implied.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <asm/m54xxsim.h>
#include <asm/m54xxgpt.h>
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
static unsigned int heartbeat = 30; /* (secs) Default is 0.5 minute */
static unsigned long wdt_status;
if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
wdt_disable();
else {
- printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
- "timer will not stop\n");
+ pr_crit("Device closed unexpectedly - timer will not stop\n");
wdt_keepalive();
}
clear_bit(WDT_IN_USE, &wdt_status);
{
if (!request_mem_region(MCF_MBAR + MCF_GPT_GCIR0, 4,
"Coldfire M54xx Watchdog")) {
- printk(KERN_WARNING
- "Coldfire M54xx Watchdog : I/O region busy\n");
+ pr_warn("I/O region busy\n");
return -EBUSY;
}
- printk(KERN_INFO "ColdFire watchdog driver is loaded.\n");
+ pr_info("driver is loaded\n");
return misc_register(&m54xx_wdt_miscdev);
}
module_param(heartbeat, int, 0);
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default 30s)");
-module_param(nowayout, int, 0);
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
MODULE_LICENSE("GPL");
* Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
MODULE_LICENSE("GPL");
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
#define ZF_CTIMEOUT 0xffff
#ifndef ZF_DEBUG
-# define dprintk(format, args...)
+#define dprintk(format, args...)
#else
-# define dprintk(format, args...) printk(KERN_DEBUG PFX \
- ":%s:%d: " format, __func__, __LINE__ , ## args)
+#define dprintk(format, args...) \
+ pr_debug(":%s:%d: " format, __func__, __LINE__ , ## args)
#endif
zf_set_control(ctrl_reg);
spin_unlock_irqrestore(&zf_port_lock, flags);
- printk(KERN_INFO PFX ": Watchdog timer is now disabled\n");
+ pr_info("Watchdog timer is now disabled\n");
}
zf_set_control(ctrl_reg);
spin_unlock_irqrestore(&zf_port_lock, flags);
- printk(KERN_INFO PFX ": Watchdog timer is now enabled\n");
+ pr_info("Watchdog timer is now enabled\n");
}
mod_timer(&zf_timer, jiffies + ZF_HW_TIMEO);
} else
- printk(KERN_CRIT PFX ": I will reset your machine\n");
+ pr_crit("I will reset your machine\n");
}
static ssize_t zf_write(struct file *file, const char __user *buf, size_t count,
zf_timer_off();
else {
del_timer(&zf_timer);
- printk(KERN_ERR PFX ": device file closed unexpectedly. "
- "Will not stop the WDT!\n");
+ pr_err("device file closed unexpectedly. Will not stop the WDT!\n");
}
clear_bit(0, &zf_is_open);
zf_expect_close = 0;
{
static const char * const str[] = { "RESET", "SMI", "NMI", "SCI" };
- printk(KERN_INFO PFX ": Watchdog using action = %s\n", str[act]);
+ pr_info("Watchdog using action = %s\n", str[act]);
}
static int __init zf_init(void)
{
int ret;
- printk(KERN_INFO PFX
- ": MachZ ZF-Logic Watchdog driver initializing.\n");
+ pr_info("MachZ ZF-Logic Watchdog driver initializing\n");
ret = zf_get_ZFL_version();
if (!ret || ret == 0xffff) {
- printk(KERN_WARNING PFX ": no ZF-Logic found\n");
+ pr_warn("no ZF-Logic found\n");
return -ENODEV;
}
zf_show_action(action);
if (!request_region(ZF_IOBASE, 3, "MachZ ZFL WDT")) {
- printk(KERN_ERR "cannot reserve I/O ports at %d\n",
- ZF_IOBASE);
+ pr_err("cannot reserve I/O ports at %d\n", ZF_IOBASE);
ret = -EBUSY;
goto no_region;
}
ret = register_reboot_notifier(&zf_notifier);
if (ret) {
- printk(KERN_ERR "can't register reboot notifier (err=%d)\n",
- ret);
+ pr_err("can't register reboot notifier (err=%d)\n", ret);
goto no_reboot;
}
ret = misc_register(&zf_miscdev);
if (ret) {
- printk(KERN_ERR "can't misc_register on minor=%d\n",
- WATCHDOG_MINOR);
+ pr_err("can't misc_register on minor=%d\n", WATCHDOG_MINOR);
goto no_misc;
}
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/init.h>
#include <linux/bitops.h>
#include <linux/platform_device.h>
#include <linux/spinlock.h>
-#include <linux/uaccess.h>
#include <linux/io.h>
-#include <linux/device.h>
#include <linux/slab.h>
#define DEFAULT_HEARTBEAT 60
#define MAX_HEARTBEAT 60
-static int heartbeat = DEFAULT_HEARTBEAT;
-static int nowayout = WATCHDOG_NOWAYOUT;
+static unsigned int heartbeat = DEFAULT_HEARTBEAT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
/*
* Memory mapping: a single byte, 3 first lower bits to select bit 3
static DEFINE_SPINLOCK(io_lock);
-static unsigned long wdt_status;
-#define WDT_IN_USE 0
-#define WDT_RUNNING 1
-#define WDT_OK_TO_CLOSE 2
-
static int nodelay;
-static struct resource *wdt_mem;
static void __iomem *wdt_base;
-static struct platform_device *max63xx_pdev;
/*
* The timeout values used are actually the absolute minimum the chip
return NULL;
}
-static void max63xx_wdt_ping(void)
+static int max63xx_wdt_ping(struct watchdog_device *wdd)
{
u8 val;
__raw_writeb(val & ~MAX6369_WDI, wdt_base);
spin_unlock(&io_lock);
+ return 0;
}
-static void max63xx_wdt_enable(struct max63xx_timeout *entry)
+static int max63xx_wdt_start(struct watchdog_device *wdd)
{
+ struct max63xx_timeout *entry = watchdog_get_drvdata(wdd);
u8 val;
- if (test_and_set_bit(WDT_RUNNING, &wdt_status))
- return;
-
spin_lock(&io_lock);
val = __raw_readb(wdt_base);
/* check for a edge triggered startup */
if (entry->tdelay == 0)
- max63xx_wdt_ping();
+ max63xx_wdt_ping(wdd);
+ return 0;
}
-static void max63xx_wdt_disable(void)
+static int max63xx_wdt_stop(struct watchdog_device *wdd)
{
u8 val;
__raw_writeb(val, wdt_base);
spin_unlock(&io_lock);
-
- clear_bit(WDT_RUNNING, &wdt_status);
-}
-
-static int max63xx_wdt_open(struct inode *inode, struct file *file)
-{
- if (test_and_set_bit(WDT_IN_USE, &wdt_status))
- return -EBUSY;
-
- max63xx_wdt_enable(current_timeout);
- clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
- return nonseekable_open(inode, file);
-}
-
-static ssize_t max63xx_wdt_write(struct file *file, const char *data,
- size_t len, loff_t *ppos)
-{
- if (len) {
- if (!nowayout) {
- size_t i;
-
- clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
- for (i = 0; i != len; i++) {
- char c;
-
- if (get_user(c, data + i))
- return -EFAULT;
-
- if (c == 'V')
- set_bit(WDT_OK_TO_CLOSE, &wdt_status);
- }
- }
-
- max63xx_wdt_ping();
- }
-
- return len;
+ return 0;
}
-static const struct watchdog_info ident = {
- .options = WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING,
+static const struct watchdog_info max63xx_wdt_info = {
+ .options = WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
.identity = "max63xx Watchdog",
};
-static long max63xx_wdt_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- int ret = -ENOTTY;
-
- switch (cmd) {
- case WDIOC_GETSUPPORT:
- ret = copy_to_user((struct watchdog_info *)arg, &ident,
- sizeof(ident)) ? -EFAULT : 0;
- break;
-
- case WDIOC_GETSTATUS:
- case WDIOC_GETBOOTSTATUS:
- ret = put_user(0, (int *)arg);
- break;
-
- case WDIOC_KEEPALIVE:
- max63xx_wdt_ping();
- ret = 0;
- break;
-
- case WDIOC_GETTIMEOUT:
- ret = put_user(heartbeat, (int *)arg);
- break;
- }
- return ret;
-}
-
-static int max63xx_wdt_release(struct inode *inode, struct file *file)
-{
- if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
- max63xx_wdt_disable();
- else
- dev_crit(&max63xx_pdev->dev,
- "device closed unexpectedly - timer will not stop\n");
-
- clear_bit(WDT_IN_USE, &wdt_status);
- clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
- return 0;
-}
-
-static const struct file_operations max63xx_wdt_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = max63xx_wdt_write,
- .unlocked_ioctl = max63xx_wdt_ioctl,
- .open = max63xx_wdt_open,
- .release = max63xx_wdt_release,
+static const struct watchdog_ops max63xx_wdt_ops = {
+ .owner = THIS_MODULE,
+ .start = max63xx_wdt_start,
+ .stop = max63xx_wdt_stop,
+ .ping = max63xx_wdt_ping,
};
-static struct miscdevice max63xx_wdt_miscdev = {
- .minor = WATCHDOG_MINOR,
- .name = "watchdog",
- .fops = &max63xx_wdt_fops,
+static struct watchdog_device max63xx_wdt_dev = {
+ .info = &max63xx_wdt_info,
+ .ops = &max63xx_wdt_ops,
};
static int __devinit max63xx_wdt_probe(struct platform_device *pdev)
{
- int ret = 0;
- int size;
- struct device *dev = &pdev->dev;
+ struct resource *wdt_mem;
struct max63xx_timeout *table;
table = (struct max63xx_timeout *)pdev->id_entry->driver_data;
if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
heartbeat = DEFAULT_HEARTBEAT;
- dev_info(dev, "requesting %ds heartbeat\n", heartbeat);
+ dev_info(&pdev->dev, "requesting %ds heartbeat\n", heartbeat);
current_timeout = max63xx_select_timeout(table, heartbeat);
if (!current_timeout) {
- dev_err(dev, "unable to satisfy heartbeat request\n");
+ dev_err(&pdev->dev, "unable to satisfy heartbeat request\n");
return -EINVAL;
}
- dev_info(dev, "using %ds heartbeat with %ds initial delay\n",
+ dev_info(&pdev->dev, "using %ds heartbeat with %ds initial delay\n",
current_timeout->twd, current_timeout->tdelay);
heartbeat = current_timeout->twd;
- max63xx_pdev = pdev;
-
wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (wdt_mem == NULL) {
- dev_err(dev, "failed to get memory region resource\n");
- return -ENOENT;
- }
+ wdt_base = devm_request_and_ioremap(&pdev->dev, wdt_mem);
+ if (!wdt_base)
+ return -ENOMEM;
- size = resource_size(wdt_mem);
- if (!request_mem_region(wdt_mem->start, size, pdev->name)) {
- dev_err(dev, "failed to get memory region\n");
- return -ENOENT;
- }
-
- wdt_base = ioremap(wdt_mem->start, size);
- if (!wdt_base) {
- dev_err(dev, "failed to map memory region\n");
- ret = -ENOMEM;
- goto out_request;
- }
+ max63xx_wdt_dev.timeout = heartbeat;
+ watchdog_set_nowayout(&max63xx_wdt_dev, nowayout);
+ watchdog_set_drvdata(&max63xx_wdt_dev, current_timeout);
- ret = misc_register(&max63xx_wdt_miscdev);
- if (ret < 0) {
- dev_err(dev, "cannot register misc device\n");
- goto out_unmap;
- }
-
- return 0;
-
-out_unmap:
- iounmap(wdt_base);
-out_request:
- release_mem_region(wdt_mem->start, size);
- wdt_mem = NULL;
-
- return ret;
+ return watchdog_register_device(&max63xx_wdt_dev);
}
static int __devexit max63xx_wdt_remove(struct platform_device *pdev)
{
- misc_deregister(&max63xx_wdt_miscdev);
- if (wdt_mem) {
- release_mem_region(wdt_mem->start, resource_size(wdt_mem));
- wdt_mem = NULL;
- }
-
- if (wdt_base)
- iounmap(wdt_base);
-
+ watchdog_unregister_device(&max63xx_wdt_dev);
return 0;
}
__MODULE_STRING(MAX_HEARTBEAT) ", default "
__MODULE_STRING(DEFAULT_HEARTBEAT));
-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) ")");
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#define VERSION "0.6"
#define WATCHDOG_NAME "mixcomwd"
-#define PFX WATCHDOG_NAME ": "
#include <linux/module.h>
#include <linux/moduleparam.h>
static DEFINE_TIMER(mixcomwd_timer, mixcomwd_timerfun, 0, 0);
static char expect_close;
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
{
if (expect_close == 42) {
if (mixcomwd_timer_alive) {
- printk(KERN_ERR PFX
- "release called while internal timer alive");
+ pr_err("release called while internal timer alive\n");
return -EBUSY;
}
mixcomwd_timer_alive = 1;
mod_timer(&mixcomwd_timer, jiffies + 5 * HZ);
} else
- printk(KERN_CRIT PFX
- "WDT device closed unexpectedly. WDT will not stop!\n");
+ pr_crit("WDT device closed unexpectedly. WDT will not stop!\n");
clear_bit(0, &mixcomwd_opened);
expect_close = 0;
}
if (!found) {
- printk(KERN_ERR PFX
- "No card detected, or port not available.\n");
+ pr_err("No card detected, or port not available\n");
return -ENODEV;
}
ret = misc_register(&mixcomwd_miscdev);
if (ret) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto error_misc_register_watchdog;
}
- printk(KERN_INFO
- "MixCOM watchdog driver v%s, watchdog port at 0x%3x\n",
- VERSION, watchdog_port);
+ pr_info("MixCOM watchdog driver v%s, watchdog port at 0x%3x\n",
+ VERSION, watchdog_port);
return 0;
{
if (!nowayout) {
if (mixcomwd_timer_alive) {
- printk(KERN_WARNING PFX "I quit now, hardware will"
- " probably reboot!\n");
+ pr_warn("I quit now, hardware will probably reboot!\n");
del_timer_sync(&mixcomwd_timer);
mixcomwd_timer_alive = 0;
}
* option) any later version.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/kernel.h>
MODULE_PARM_DESC(reset,
"Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
"(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
static void mpc8xxx_wdt_pr_warn(const char *msg)
{
- pr_crit("mpc8xxx_wdt: %s, expect the %s soon!\n", msg,
+ pr_crit("%s, expect the %s soon!\n", msg,
reset ? "reset" : "machine check exception");
}
enabled = in_be32(&wd_base->swcrr) & SWCRR_SWEN;
if (!enabled && wdt_type->hw_enabled) {
- pr_info("mpc8xxx_wdt: could not be enabled in software\n");
+ pr_info("could not be enabled in software\n");
ret = -ENOSYS;
goto err_unmap;
}
goto err_unmap;
#endif
- pr_info("WDT driver for MPC8xxx initialized. mode:%s timeout=%d "
- "(%d seconds)\n", reset ? "reset" : "interrupt", timeout,
- timeout_sec);
+ pr_info("WDT driver for MPC8xxx initialized. mode:%s timeout=%d (%d seconds)\n",
+ reset ? "reset" : "interrupt", timeout, timeout_sec);
/*
* If the watchdog was previously enabled or we're running on
ret = misc_register(&mpc8xxx_wdt_miscdev);
if (ret) {
pr_err("cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ WATCHDOG_MINOR, ret);
return ret;
}
return 0;
* (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>
*
*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
char expect_close;
};
-static struct platform_device *mpcore_wdt_dev;
+static struct platform_device *mpcore_wdt_pdev;
static DEFINE_SPINLOCK(wdt_lock);
#define TIMER_MARGIN 60
"MPcore timer margin in seconds. (0 < mpcore_margin < 65536, default="
__MODULE_STRING(TIMER_MARGIN) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
*/
static int mpcore_wdt_open(struct inode *inode, struct file *file)
{
- struct mpcore_wdt *wdt = platform_get_drvdata(mpcore_wdt_dev);
+ struct mpcore_wdt *wdt = platform_get_drvdata(mpcore_wdt_pdev);
if (test_and_set_bit(0, &wdt->timer_alive))
return -EBUSY;
* System shutdown handler. Turn off the watchdog if we're
* restarting or halting the system.
*/
-static void mpcore_wdt_shutdown(struct platform_device *dev)
+static void mpcore_wdt_shutdown(struct platform_device *pdev)
{
- struct mpcore_wdt *wdt = platform_get_drvdata(dev);
+ struct mpcore_wdt *wdt = platform_get_drvdata(pdev);
if (system_state == SYSTEM_RESTART || system_state == SYSTEM_HALT)
mpcore_wdt_stop(wdt);
.fops = &mpcore_wdt_fops,
};
-static int __devinit mpcore_wdt_probe(struct platform_device *dev)
+static int __devinit mpcore_wdt_probe(struct platform_device *pdev)
{
struct mpcore_wdt *wdt;
struct resource *res;
int ret;
/* We only accept one device, and it must have an id of -1 */
- if (dev->id != -1)
+ if (pdev->id != -1)
return -ENODEV;
- res = platform_get_resource(dev, IORESOURCE_MEM, 0);
- if (!res) {
- ret = -ENODEV;
- goto err_out;
- }
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
- wdt = kzalloc(sizeof(struct mpcore_wdt), GFP_KERNEL);
- if (!wdt) {
- ret = -ENOMEM;
- goto err_out;
+ wdt = devm_kzalloc(&pdev->dev, sizeof(struct mpcore_wdt), GFP_KERNEL);
+ if (!wdt)
+ return -ENOMEM;
+
+ wdt->dev = &pdev->dev;
+ wdt->irq = platform_get_irq(pdev, 0);
+ if (wdt->irq >= 0) {
+ ret = devm_request_irq(wdt->dev, wdt->irq, mpcore_wdt_fire, 0,
+ "mpcore_wdt", wdt);
+ if (ret) {
+ dev_printk(KERN_ERR, wdt->dev,
+ "cannot register IRQ%d for watchdog\n",
+ wdt->irq);
+ return ret;
+ }
}
- wdt->dev = &dev->dev;
- wdt->irq = platform_get_irq(dev, 0);
- if (wdt->irq < 0) {
- ret = -ENXIO;
- goto err_free;
- }
- wdt->base = ioremap(res->start, resource_size(res));
- if (!wdt->base) {
- ret = -ENOMEM;
- goto err_free;
- }
+ wdt->base = devm_ioremap(wdt->dev, res->start, resource_size(res));
+ if (!wdt->base)
+ return -ENOMEM;
- mpcore_wdt_miscdev.parent = &dev->dev;
+ mpcore_wdt_miscdev.parent = &pdev->dev;
ret = misc_register(&mpcore_wdt_miscdev);
if (ret) {
dev_printk(KERN_ERR, wdt->dev,
"cannot register miscdev on minor=%d (err=%d)\n",
WATCHDOG_MINOR, ret);
- goto err_misc;
- }
-
- ret = request_irq(wdt->irq, mpcore_wdt_fire, 0, "mpcore_wdt", wdt);
- if (ret) {
- dev_printk(KERN_ERR, wdt->dev,
- "cannot register IRQ%d for watchdog\n", wdt->irq);
- goto err_irq;
+ return ret;
}
mpcore_wdt_stop(wdt);
- platform_set_drvdata(dev, wdt);
- mpcore_wdt_dev = dev;
+ platform_set_drvdata(pdev, wdt);
+ mpcore_wdt_pdev = pdev;
return 0;
-
-err_irq:
- misc_deregister(&mpcore_wdt_miscdev);
-err_misc:
- iounmap(wdt->base);
-err_free:
- kfree(wdt);
-err_out:
- return ret;
}
-static int __devexit mpcore_wdt_remove(struct platform_device *dev)
+static int __devexit mpcore_wdt_remove(struct platform_device *pdev)
{
- struct mpcore_wdt *wdt = platform_get_drvdata(dev);
-
- platform_set_drvdata(dev, NULL);
+ platform_set_drvdata(pdev, NULL);
misc_deregister(&mpcore_wdt_miscdev);
- mpcore_wdt_dev = NULL;
+ mpcore_wdt_pdev = NULL;
- free_irq(wdt->irq, wdt);
- iounmap(wdt->base);
- kfree(wdt);
return 0;
}
#ifdef CONFIG_PM
-static int mpcore_wdt_suspend(struct platform_device *dev, pm_message_t msg)
+static int mpcore_wdt_suspend(struct platform_device *pdev, pm_message_t msg)
{
- struct mpcore_wdt *wdt = platform_get_drvdata(dev);
+ struct mpcore_wdt *wdt = platform_get_drvdata(pdev);
mpcore_wdt_stop(wdt); /* Turn the WDT off */
return 0;
}
-static int mpcore_wdt_resume(struct platform_device *dev)
+static int mpcore_wdt_resume(struct platform_device *pdev)
{
- struct mpcore_wdt *wdt = platform_get_drvdata(dev);
+ struct mpcore_wdt *wdt = platform_get_drvdata(pdev);
/* re-activate timer */
if (test_bit(0, &wdt->timer_alive))
mpcore_wdt_start(wdt);
},
};
-static char banner[] __initdata = KERN_INFO "MPcore Watchdog Timer: 0.1. "
- "mpcore_noboot=%d mpcore_margin=%d sec (nowayout= %d)\n";
-
static int __init mpcore_wdt_init(void)
{
/*
*/
if (mpcore_wdt_set_heartbeat(mpcore_margin)) {
mpcore_wdt_set_heartbeat(TIMER_MARGIN);
- printk(KERN_INFO "mpcore_margin value must be 0 < mpcore_margin < 65536, using %d\n",
+ pr_info("mpcore_margin value must be 0 < mpcore_margin < 65536, using %d\n",
TIMER_MARGIN);
}
- printk(banner, mpcore_noboot, mpcore_margin, nowayout);
+ pr_info("MPcore Watchdog Timer: 0.1. mpcore_noboot=%d mpcore_margin=%d sec (nowayout= %d)\n",
+ mpcore_noboot, mpcore_margin, nowayout);
return platform_driver_register(&mpcore_wdt_driver);
}
* or implied.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/kernel.h>
static char expect_close;
static DEFINE_SPINLOCK(mv64x60_wdt_spinlock);
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
if (mv64x60_wdt_toggle_wdc(MV64x60_WDC_ENABLED_FALSE,
MV64x60_WDC_ENABLE_SHIFT)) {
mv64x60_wdt_service();
- printk(KERN_NOTICE "mv64x60_wdt: watchdog activated\n");
+ pr_notice("watchdog activated\n");
}
}
{
if (mv64x60_wdt_toggle_wdc(MV64x60_WDC_ENABLED_TRUE,
MV64x60_WDC_ENABLE_SHIFT))
- printk(KERN_NOTICE "mv64x60_wdt: watchdog deactivated\n");
+ pr_notice("watchdog deactivated\n");
}
static void mv64x60_wdt_set_timeout(unsigned int timeout)
if (expect_close == 42)
mv64x60_wdt_handler_disable();
else {
- printk(KERN_CRIT
- "mv64x60_wdt: unexpected close, not stopping timer!\n");
+ pr_crit("unexpected close, not stopping timer!\n");
mv64x60_wdt_service();
}
expect_close = 0;
static int __init mv64x60_wdt_init(void)
{
- printk(KERN_INFO "MV64x60 watchdog driver\n");
+ pr_info("MV64x60 watchdog driver\n");
return platform_driver_register(&mv64x60_wdt_driver);
}
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeats in seconds. "
"(default = " __MODULE_STRING(WDT_HEARTBEAT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
"(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
* Includes, defines, variables, module parameters, ...
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#define TCO_VERSION "0.01"
#define TCO_MODULE_NAME "NV_TCO"
#define TCO_DRIVER_NAME TCO_MODULE_NAME ", v" TCO_VERSION
-#define PFX TCO_MODULE_NAME ": "
/* internal variables */
static unsigned int tcobase;
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (2<heartbeat<39, "
"default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"
" (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
if (tco_expect_close == 42) {
tco_timer_stop();
} else {
- printk(KERN_CRIT PFX "Unexpected close, not stopping "
- "watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
tco_timer_keepalive();
}
clear_bit(0, &timer_alive);
val &= 0xffff;
if (val == 0x0001 || val == 0x0000) {
/* Something is wrong here, bar isn't setup */
- printk(KERN_ERR PFX "failed to get tcobase address\n");
+ pr_err("failed to get tcobase address\n");
return 0;
}
val &= 0xff00;
tcobase = val + 0x40;
if (!request_region(tcobase, 0x10, "NV TCO")) {
- printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
- tcobase);
+ pr_err("I/O address 0x%04x already in use\n", tcobase);
return 0;
}
/* Disable SMI caused by TCO */
if (!request_region(MCP51_SMI_EN(tcobase), 4, "NV TCO")) {
- printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
+ pr_err("I/O address 0x%04x already in use\n",
MCP51_SMI_EN(tcobase));
goto out;
}
val = inl(MCP51_SMI_EN(tcobase));
release_region(MCP51_SMI_EN(tcobase), 4);
if (val & MCP51_SMI_EN_TCO) {
- printk(KERN_ERR PFX "Could not disable SMI caused by TCO\n");
+ pr_err("Could not disable SMI caused by TCO\n");
goto out;
}
pci_write_config_dword(tco_pci, MCP51_SMBUS_SETUP_B, val);
pci_read_config_dword(tco_pci, MCP51_SMBUS_SETUP_B, &val);
if (!(val & MCP51_SMBUS_SETUP_B_TCO_REBOOT)) {
- printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, reboot "
- "disabled by hardware\n");
+ pr_err("failed to reset NO_REBOOT flag, reboot disabled by hardware\n");
goto out;
}
return -ENODEV;
/* Check to see if last reboot was due to watchdog timeout */
- printk(KERN_INFO PFX "Watchdog reboot %sdetected.\n",
- inl(TCO_STS(tcobase)) & TCO_STS_TCO2TO_STS ? "" : "not ");
+ pr_info("Watchdog reboot %sdetected\n",
+ inl(TCO_STS(tcobase)) & TCO_STS_TCO2TO_STS ? "" : "not ");
/* Clear out the old status */
outl(TCO_STS_RESET, TCO_STS(tcobase));
if (tco_timer_set_heartbeat(heartbeat)) {
heartbeat = WATCHDOG_HEARTBEAT;
tco_timer_set_heartbeat(heartbeat);
- printk(KERN_INFO PFX "heartbeat value must be 2<heartbeat<39, "
- "using %d\n", heartbeat);
+ pr_info("heartbeat value must be 2<heartbeat<39, using %d\n",
+ heartbeat);
}
ret = misc_register(&nv_tco_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX "cannot register miscdev on minor=%d "
- "(err=%d)\n", WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto unreg_region;
}
tco_timer_stop();
- printk(KERN_INFO PFX "initialized (0x%04x). heartbeat=%d sec "
- "(nowayout=%d)\n", tcobase, heartbeat, nowayout);
+ pr_info("initialized (0x%04x). heartbeat=%d sec (nowayout=%d)\n",
+ tcobase, heartbeat, nowayout);
return 0;
pci_write_config_dword(tco_pci, MCP51_SMBUS_SETUP_B, val);
pci_read_config_dword(tco_pci, MCP51_SMBUS_SETUP_B, &val);
if (val & MCP51_SMBUS_SETUP_B_TCO_REBOOT) {
- printk(KERN_CRIT PFX "Couldn't unset REBOOT bit. Machine may "
- "soon reset\n");
+ pr_crit("Couldn't unset REBOOT bit. Machine may soon reset\n");
}
/* Deregister */
{
int err;
- printk(KERN_INFO PFX "NV TCO WatchDog Timer Driver v%s\n",
- TCO_VERSION);
+ pr_info("NV TCO WatchDog Timer Driver v%s\n", TCO_VERSION);
err = platform_driver_register(&nv_tco_driver);
if (err)
{
platform_device_unregister(nv_tco_platform_device);
platform_driver_unregister(&nv_tco_driver);
- printk(KERN_INFO PFX "NV TCO Watchdog Module Unloaded.\n");
+ pr_info("NV TCO Watchdog Module Unloaded\n");
}
module_init(nv_tco_init_module);
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/miscdevice.h>
#include <linux/interrupt.h>
#include <linux/watchdog.h>
"Watchdog heartbeat in seconds. (0 < heartbeat, default="
__MODULE_STRING(WD_TIMO) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, S_IRUGO);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, S_IRUGO);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
uasm_resolve_relocs(relocs, labels);
len = (int)(p - nmi_stage1_insns);
- pr_debug("Synthesized NMI stage 1 handler (%d instructions).\n", len);
+ pr_debug("Synthesized NMI stage 1 handler (%d instructions)\n", len);
pr_debug("\t.set push\n");
pr_debug("\t.set noreorder\n");
do_coundown = 0;
octeon_wdt_ping();
} else {
- pr_crit("octeon_wdt: WDT device closed unexpectedly. WDT will not stop!\n");
+ pr_crit("WDT device closed unexpectedly. WDT will not stop!\n");
}
clear_bit(0, &octeon_wdt_is_open);
expect_close = 0;
octeon_wdt_calc_parameters(heartbeat);
- pr_info("octeon_wdt: Initial granularity %d Sec.\n", timeout_sec);
+ pr_info("Initial granularity %d Sec\n", timeout_sec);
ret = misc_register(&octeon_wdt_miscdev);
if (ret) {
- pr_err("octeon_wdt: cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto out;
}
* know the wdt reset interval
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
iowrite32(0, xdev.base + XWT_TWCSR1_OFFSET);
spin_unlock(&spinlock);
- printk(KERN_INFO PFX "Stopped!\n");
+ pr_info("Stopped!\n");
}
static void xwdt_keepalive(void)
__module_get(THIS_MODULE);
xwdt_start();
- printk(KERN_INFO PFX "Started...\n");
+ pr_info("Started...\n");
return nonseekable_open(inode, file);
}
if (expect_close == 42) {
xwdt_stop();
} else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
xwdt_keepalive();
}
"clock-frequency", NULL);
if (pfreq == NULL) {
- printk(KERN_WARNING PFX
- "The watchdog clock frequency cannot be obtained!\n");
+ pr_warn("The watchdog clock frequency cannot be obtained!\n");
no_timeout = 1;
}
rc = of_address_to_resource(pdev->dev.of_node, 0, &xdev.res);
if (rc) {
- printk(KERN_WARNING PFX "invalid address!\n");
+ pr_warn("invalid address!\n");
return rc;
}
tmptr = (u32 *)of_get_property(pdev->dev.of_node,
"xlnx,wdt-interval", NULL);
if (tmptr == NULL) {
- printk(KERN_WARNING PFX "Parameter \"xlnx,wdt-interval\""
- " not found in device tree!\n");
+ pr_warn("Parameter \"xlnx,wdt-interval\" not found in device tree!\n");
no_timeout = 1;
} else {
xdev.wdt_interval = *tmptr;
tmptr = (u32 *)of_get_property(pdev->dev.of_node,
"xlnx,wdt-enable-once", NULL);
if (tmptr == NULL) {
- printk(KERN_WARNING PFX "Parameter \"xlnx,wdt-enable-once\""
- " not found in device tree!\n");
+ pr_warn("Parameter \"xlnx,wdt-enable-once\" not found in device tree!\n");
xdev.nowayout = WATCHDOG_NOWAYOUT;
}
if (!request_mem_region(xdev.res.start,
xdev.res.end - xdev.res.start + 1, WATCHDOG_NAME)) {
rc = -ENXIO;
- printk(KERN_ERR PFX "memory request failure!\n");
+ pr_err("memory request failure!\n");
goto err_out;
}
xdev.base = ioremap(xdev.res.start, xdev.res.end - xdev.res.start + 1);
if (xdev.base == NULL) {
rc = -ENOMEM;
- printk(KERN_ERR PFX "ioremap failure!\n");
+ pr_err("ioremap failure!\n");
goto release_mem;
}
rc = xwdt_selftest();
if (rc == XWT_TIMER_FAILED) {
- printk(KERN_ERR PFX "SelfTest routine error!\n");
+ pr_err("SelfTest routine error!\n");
goto unmap_io;
}
rc = misc_register(&xwdt_miscdev);
if (rc) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- xwdt_miscdev.minor, rc);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ xwdt_miscdev.minor, rc);
goto unmap_io;
}
if (no_timeout)
- printk(KERN_INFO PFX
- "driver loaded (timeout=? sec, nowayout=%d)\n",
- xdev.nowayout);
+ pr_info("driver loaded (timeout=? sec, nowayout=%d)\n",
+ xdev.nowayout);
else
- printk(KERN_INFO PFX
- "driver loaded (timeout=%d sec, nowayout=%d)\n",
- timeout, xdev.nowayout);
+ pr_info("driver loaded (timeout=%d sec, nowayout=%d)\n",
+ timeout, xdev.nowayout);
expect_close = 0;
clear_bit(0, &driver_open);
* Use the driver model and standard identifiers; handle bigger timeouts.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
pm_runtime_put_sync(wdev->dev);
#else
- printk(KERN_CRIT "omap_wdt: Unexpected close, not stopping!\n");
+ pr_crit("Unexpected close, not stopping!\n");
#endif
wdev->omap_wdt_users = 0;
* warranty of any kind, whether express or implied.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#define WDT_IN_USE 0
#define WDT_OK_TO_CLOSE 1
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
static int heartbeat = -1; /* module parameter (seconds) */
static unsigned int wdt_max_duration; /* (seconds) */
static unsigned int wdt_tclk;
if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
orion_wdt_disable();
else
- printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
- "timer will not stop\n");
+ pr_crit("Device closed unexpectedly - timer will not stop\n");
clear_bit(WDT_IN_USE, &wdt_status);
clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
if (pdata) {
wdt_tclk = pdata->tclk;
} else {
- printk(KERN_ERR "Orion Watchdog misses platform data\n");
+ pr_err("misses platform data\n");
return -ENODEV;
}
if (ret)
return ret;
- printk(KERN_INFO "Orion Watchdog Timer: Initial timeout %d sec%s\n",
- heartbeat, nowayout ? ", nowayout" : "");
+ pr_info("Initial timeout %d sec%s\n",
+ heartbeat, nowayout ? ", nowayout" : "");
return 0;
}
module_param(heartbeat, int, 0);
MODULE_PARM_DESC(heartbeat, "Initial watchdog heartbeat in seconds");
-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) ")");
* Release 1.1
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/types.h>
#include <linux/miscdevice.h>
#define VERSION "1.1"
#define MODNAME "pc87413 WDT"
-#define PFX MODNAME ": "
#define DPFX MODNAME " - DEBUG: "
#define WDT_INDEX_IO_PORT (io+0) /* I/O port base (index register) */
static DEFINE_SPINLOCK(io_lock); /* to guard us from io races */
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
/* -- Low level function ----------------------------------------*/
outb_p(cr_data, WDT_DATA_IO_PORT);
#ifdef DEBUG
- printk(KERN_INFO DPFX
+ pr_info(DPFX
"Select multiple pin,pin55,as WDT output: Bit7 to 1: %d\n",
cr_data);
#endif
outb_p(cr_data, WDT_DATA_IO_PORT); /* Index0x30_bit0P1 */
#ifdef DEBUG
- printk(KERN_INFO DPFX "pc87413 - Enable SWC functions\n");
+ pr_info(DPFX "pc87413 - Enable SWC functions\n");
#endif
}
swc_base_addr = (addr_h << 8) + addr_l;
#ifdef DEBUG
- printk(KERN_INFO DPFX
+ pr_info(DPFX
"Read SWC I/O Base Address: low %d, high %d, res %d\n",
addr_l, addr_h, swc_base_addr);
#endif
/* Step 4: Select Bank3 of SWC */
outb_p(inb(swc_base_addr + 0x0f) | 0x03, swc_base_addr + 0x0f);
#ifdef DEBUG
- printk(KERN_INFO DPFX "Select Bank3 of SWC\n");
+ pr_info(DPFX "Select Bank3 of SWC\n");
#endif
}
/* Step 5: Programm WDTO, Twd. */
outb_p(pc87413_time, swc_base_addr + WDTO);
#ifdef DEBUG
- printk(KERN_INFO DPFX "Set WDTO to %d minutes\n", pc87413_time);
+ pr_info(DPFX "Set WDTO to %d minutes\n", pc87413_time);
#endif
}
/* Step 6: Enable WDEN */
outb_p(inb(swc_base_addr + WDCTL) | 0x01, swc_base_addr + WDCTL);
#ifdef DEBUG
- printk(KERN_INFO DPFX "Enable WDEN\n");
+ pr_info(DPFX "Enable WDEN\n");
#endif
}
/* Enable SW_WD_TREN */
outb_p(inb(swc_base_addr + WDCFG) | 0x80, swc_base_addr + WDCFG);
#ifdef DEBUG
- printk(KERN_INFO DPFX "Enable SW_WD_TREN\n");
+ pr_info(DPFX "Enable SW_WD_TREN\n");
#endif
}
/* Disable SW_WD_TREN */
outb_p(inb(swc_base_addr + WDCFG) & 0x7f, swc_base_addr + WDCFG);
#ifdef DEBUG
- printk(KERN_INFO DPFX "pc87413 - Disable SW_WD_TREN\n");
+ pr_info(DPFX "pc87413 - Disable SW_WD_TREN\n");
#endif
}
/* Enable SW_WD_TRG */
outb_p(inb(swc_base_addr + WDCTL) | 0x80, swc_base_addr + WDCTL);
#ifdef DEBUG
- printk(KERN_INFO DPFX "pc87413 - Enable SW_WD_TRG\n");
+ pr_info(DPFX "pc87413 - Enable SW_WD_TRG\n");
#endif
}
/* Disable SW_WD_TRG */
outb_p(inb(swc_base_addr + WDCTL) & 0x7f, swc_base_addr + WDCTL);
#ifdef DEBUG
- printk(KERN_INFO DPFX "Disable SW_WD_TRG\n");
+ pr_info(DPFX "Disable SW_WD_TRG\n");
#endif
}
/* Reload and activate timer */
pc87413_refresh();
- printk(KERN_INFO MODNAME
- "Watchdog enabled. Timeout set to %d minute(s).\n", timeout);
+ pr_info("Watchdog enabled. Timeout set to %d minute(s).\n", timeout);
return nonseekable_open(inode, file);
}
if (expect_close == 42) {
pc87413_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");
pc87413_refresh();
}
clear_bit(0, &timer_enabled);
case WDIOC_KEEPALIVE:
pc87413_refresh();
#ifdef DEBUG
- printk(KERN_INFO DPFX "keepalive\n");
+ pr_info(DPFX "keepalive\n");
#endif
return 0;
case WDIOC_SETTIMEOUT:
{
int ret;
- printk(KERN_INFO PFX "Version " VERSION " at io 0x%X\n",
+ pr_info("Version " VERSION " at io 0x%X\n",
WDT_INDEX_IO_PORT);
if (!request_muxed_region(io, 2, MODNAME))
ret = register_reboot_notifier(&pc87413_notifier);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", ret);
+ pr_err("cannot register reboot notifier (err=%d)\n", ret);
}
ret = misc_register(&pc87413_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto reboot_unreg;
}
- printk(KERN_INFO PFX "initialized. timeout=%d min \n", timeout);
+ pr_info("initialized. timeout=%d min\n", timeout);
pc87413_select_wdt_out();
pc87413_enable_swc();
pc87413_get_swc_base_addr();
if (!request_region(swc_base_addr, 0x20, MODNAME)) {
- printk(KERN_ERR PFX
- "cannot request SWC region at 0x%x\n", swc_base_addr);
+ pr_err("cannot request SWC region at 0x%x\n", swc_base_addr);
ret = -EBUSY;
goto misc_unreg;
}
/* Stop the timer before we leave */
if (!nowayout) {
pc87413_disable();
- printk(KERN_INFO MODNAME "Watchdog disabled.\n");
+ pr_info("Watchdog disabled\n");
}
misc_deregister(&pc87413_miscdev);
unregister_reboot_notifier(&pc87413_notifier);
release_region(swc_base_addr, 0x20);
- printk(KERN_INFO MODNAME " watchdog component driver removed.\n");
+ pr_info("watchdog component driver removed\n");
}
module_init(pc87413_init);
"Watchdog timeout in minutes (default="
__MODULE_STRING(DEFAULT_TIMEOUT) ").");
-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) ")");
* http://www.pcwatchdog.com/
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h> /* For module specific items */
#include <linux/moduleparam.h> /* For new moduleparam's */
#include <linux/types.h> /* For standard types (like size_t) */
#define WATCHDOG_DATE "18 Feb 2007"
#define WATCHDOG_DRIVER_NAME "ISA-PC Watchdog"
#define WATCHDOG_NAME "pcwd"
-#define PFX WATCHDOG_NAME ": "
#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION "\n"
/*
"(2 <= heartbeat <= 7200 or 0=delay-time from dip-switches, default="
__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
int port0, last_port0; /* Double read for stabilising */
if (debug >= DEBUG)
- printk(KERN_DEBUG PFX "sending following data cmd=0x%02x\n",
- cmd);
+ pr_debug("sending following data cmd=0x%02x\n", cmd);
/* The WCMD bit must be 1 and the command is only 4 bits in size */
control_status = (cmd & 0x0F) | WD_WCMD;
}
if (debug >= DEBUG)
- printk(KERN_DEBUG PFX "received following data for "
- "cmd=0x%02x: port0=0x%02x last_port0=0x%02x\n",
- cmd, port0, last_port0);
+ pr_debug("received following data for cmd=0x%02x: port0=0x%02x last_port0=0x%02x\n",
+ cmd, port0, last_port0);
return port0;
}
pcwd_private.command_mode = found;
if (debug >= DEBUG)
- printk(KERN_DEBUG PFX "command_mode=%d\n",
- pcwd_private.command_mode);
+ pr_debug("command_mode=%d\n", pcwd_private.command_mode);
return found;
}
pcwd_private.command_mode = 0;
if (debug >= DEBUG)
- printk(KERN_DEBUG PFX "command_mode=%d\n",
- pcwd_private.command_mode);
+ pr_debug("command_mode=%d\n", pcwd_private.command_mode);
}
static inline void pcwd_check_temperature_support(void)
/* Get some extra info from the hardware (in command/debug/diag mode) */
if (pcwd_private.revision == PCWD_REVISION_A)
- printk(KERN_INFO PFX
- "ISA-PC Watchdog (REV.A) detected at port 0x%04x\n",
- pcwd_private.io_addr);
+ pr_info("ISA-PC Watchdog (REV.A) detected at port 0x%04x\n",
+ pcwd_private.io_addr);
else if (pcwd_private.revision == PCWD_REVISION_C) {
pcwd_get_firmware();
- printk(KERN_INFO PFX "ISA-PC Watchdog (REV.C) detected at port "
- "0x%04x (Firmware version: %s)\n",
+ pr_info("ISA-PC Watchdog (REV.C) detected at port 0x%04x (Firmware version: %s)\n",
pcwd_private.io_addr, pcwd_private.fw_ver_str);
option_switches = pcwd_get_option_switches();
- printk(KERN_INFO PFX "Option switches (0x%02x): "
- "Temperature Reset Enable=%s, Power On Delay=%s\n",
+ pr_info("Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
option_switches,
((option_switches & 0x10) ? "ON" : "OFF"),
((option_switches & 0x08) ? "ON" : "OFF"));
}
if (pcwd_private.supports_temp)
- printk(KERN_INFO PFX "Temperature Option Detected\n");
+ pr_info("Temperature Option Detected\n");
if (pcwd_private.boot_status & WDIOF_CARDRESET)
- printk(KERN_INFO PFX
- "Previous reboot was caused by the card\n");
+ pr_info("Previous reboot was caused by the card\n");
if (pcwd_private.boot_status & WDIOF_OVERHEAT) {
- printk(KERN_EMERG PFX
- "Card senses a CPU Overheat. Panicking!\n");
- printk(KERN_EMERG PFX
- "CPU Overheat\n");
+ pr_emerg("Card senses a CPU Overheat. Panicking!\n");
+ pr_emerg("CPU Overheat\n");
}
if (pcwd_private.boot_status == 0)
- printk(KERN_INFO PFX
- "No previous trip detected - Cold boot or reset\n");
+ pr_info("No previous trip detected - Cold boot or reset\n");
}
static void pcwd_timer_ping(unsigned long data)
spin_unlock(&pcwd_private.io_lock);
} else {
- printk(KERN_WARNING PFX
- "Heartbeat lost! Will not ping the watchdog\n");
+ pr_warn("Heartbeat lost! Will not ping the watchdog\n");
}
}
stat_reg = inb_p(pcwd_private.io_addr + 2);
spin_unlock(&pcwd_private.io_lock);
if (stat_reg & WD_WDIS) {
- printk(KERN_INFO PFX "Could not start watchdog\n");
+ pr_info("Could not start watchdog\n");
return -EIO;
}
}
if (debug >= VERBOSE)
- printk(KERN_DEBUG PFX "Watchdog started\n");
+ pr_debug("Watchdog started\n");
return 0;
}
stat_reg = inb_p(pcwd_private.io_addr + 2);
spin_unlock(&pcwd_private.io_lock);
if ((stat_reg & WD_WDIS) == 0) {
- printk(KERN_INFO PFX "Could not stop watchdog\n");
+ pr_info("Could not stop watchdog\n");
return -EIO;
}
}
if (debug >= VERBOSE)
- printk(KERN_DEBUG PFX "Watchdog stopped\n");
+ pr_debug("Watchdog stopped\n");
return 0;
}
pcwd_private.next_heartbeat = jiffies + (heartbeat * HZ);
if (debug >= DEBUG)
- printk(KERN_DEBUG PFX "Watchdog keepalive signal send\n");
+ pr_debug("Watchdog keepalive signal send\n");
return 0;
}
heartbeat = t;
if (debug >= VERBOSE)
- printk(KERN_DEBUG PFX "New heartbeat: %d\n",
- heartbeat);
+ pr_debug("New heartbeat: %d\n", heartbeat);
return 0;
}
if (control_status & WD_T110) {
*status |= WDIOF_OVERHEAT;
if (temp_panic) {
- printk(KERN_INFO PFX
- "Temperature overheat trip!\n");
+ pr_info("Temperature overheat trip!\n");
kernel_power_off();
}
}
if (control_status & WD_REVC_TTRP) {
*status |= WDIOF_OVERHEAT;
if (temp_panic) {
- printk(KERN_INFO PFX
- "Temperature overheat trip!\n");
+ pr_info("Temperature overheat trip!\n");
kernel_power_off();
}
}
spin_lock(&pcwd_private.io_lock);
if (debug >= VERBOSE)
- printk(KERN_INFO PFX
- "clearing watchdog trip status\n");
+ pr_info("clearing watchdog trip status\n");
control_status = inb_p(pcwd_private.io_addr + 1);
if (debug >= DEBUG) {
- printk(KERN_DEBUG PFX "status was: 0x%02x\n",
- control_status);
- printk(KERN_DEBUG PFX "sending: 0x%02x\n",
- (control_status & WD_REVC_R2DS));
+ pr_debug("status was: 0x%02x\n", control_status);
+ pr_debug("sending: 0x%02x\n",
+ (control_status & WD_REVC_R2DS));
}
/* clear reset status & Keep Relay 2 disable state as it is */
spin_unlock(&pcwd_private.io_lock);
if (debug >= DEBUG) {
- printk(KERN_DEBUG PFX "temperature is: %d F\n",
- *temperature);
+ pr_debug("temperature is: %d F\n", *temperature);
}
return 0;
if (expect_close == 42)
pcwd_stop();
else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
pcwd_keepalive();
}
expect_close = 0;
int retval;
if (debug >= DEBUG)
- printk(KERN_DEBUG PFX "pcwd_isa_match id=%d\n",
- id);
+ pr_debug("pcwd_isa_match id=%d\n", id);
if (!request_region(base_addr, 4, "PCWD")) {
- printk(KERN_INFO PFX "Port 0x%04x unavailable\n", base_addr);
+ pr_info("Port 0x%04x unavailable\n", base_addr);
return 0;
}
int ret;
if (debug >= DEBUG)
- printk(KERN_DEBUG PFX "pcwd_isa_probe id=%d\n",
- id);
+ pr_debug("pcwd_isa_probe id=%d\n", id);
cards_found++;
if (cards_found == 1)
- printk(KERN_INFO PFX "v%s Ken Hollis (kenji@bitgate.com)\n",
+ pr_info("v%s Ken Hollis (kenji@bitgate.com)\n",
WATCHDOG_VERSION);
if (cards_found > 1) {
- printk(KERN_ERR PFX "This driver only supports 1 device\n");
+ pr_err("This driver only supports 1 device\n");
return -ENODEV;
}
if (pcwd_ioports[id] == 0x0000) {
- printk(KERN_ERR PFX "No I/O-Address for card detected\n");
+ pr_err("No I/O-Address for card detected\n");
return -ENODEV;
}
pcwd_private.io_addr = pcwd_ioports[id];
if (!request_region(pcwd_private.io_addr,
(pcwd_private.revision == PCWD_REVISION_A) ? 2 : 4, "PCWD")) {
- printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
- pcwd_private.io_addr);
+ pr_err("I/O address 0x%04x already in use\n",
+ pcwd_private.io_addr);
ret = -EIO;
goto error_request_region;
}
if not reset to the default */
if (pcwd_set_heartbeat(heartbeat)) {
pcwd_set_heartbeat(WATCHDOG_HEARTBEAT);
- printk(KERN_INFO PFX
- "heartbeat value must be 2 <= heartbeat <= 7200, using %d\n",
- WATCHDOG_HEARTBEAT);
+ pr_info("heartbeat value must be 2 <= heartbeat <= 7200, using %d\n",
+ WATCHDOG_HEARTBEAT);
}
if (pcwd_private.supports_temp) {
ret = misc_register(&temp_miscdev);
if (ret) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- TEMP_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ TEMP_MINOR, ret);
goto error_misc_register_temp;
}
}
ret = misc_register(&pcwd_miscdev);
if (ret) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto error_misc_register_watchdog;
}
- printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
+ pr_info("initialized. heartbeat=%d sec (nowayout=%d)\n",
heartbeat, nowayout);
return 0;
static int __devexit pcwd_isa_remove(struct device *dev, unsigned int id)
{
if (debug >= DEBUG)
- printk(KERN_DEBUG PFX "pcwd_isa_remove id=%d\n",
- id);
+ pr_debug("pcwd_isa_remove id=%d\n", id);
if (!pcwd_private.io_addr)
return 1;
static void pcwd_isa_shutdown(struct device *dev, unsigned int id)
{
if (debug >= DEBUG)
- printk(KERN_DEBUG PFX "pcwd_isa_shutdown id=%d\n",
- id);
+ pr_debug("pcwd_isa_shutdown id=%d\n", id);
pcwd_stop();
}
static void __exit pcwd_cleanup_module(void)
{
isa_unregister_driver(&pcwd_isa_driver);
- printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+ pr_info("Watchdog Module Unloaded\n");
}
module_init(pcwd_init_module);
* Includes, defines, variables, module parameters, ...
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h> /* For module specific items */
#include <linux/moduleparam.h> /* For new moduleparam's */
#include <linux/types.h> /* For standard types (like size_t) */
#define WATCHDOG_VERSION "1.03"
#define WATCHDOG_DRIVER_NAME "PCI-PC Watchdog"
#define WATCHDOG_NAME "pcwd_pci"
-#define PFX WATCHDOG_NAME ": "
-#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION "\n"
+#define DRIVER_VERSION WATCHDOG_DRIVER_NAME " driver, v" WATCHDOG_VERSION
/* Stuff for the PCI ID's */
#ifndef PCI_VENDOR_ID_QUICKLOGIC
"(0<heartbeat<65536 or 0=delay-time from dip-switches, default="
__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
int got_response, count;
if (debug >= DEBUG)
- printk(KERN_DEBUG PFX "sending following data "
- "cmd=0x%02x msb=0x%02x lsb=0x%02x\n", cmd, *msb, *lsb);
+ pr_debug("sending following data cmd=0x%02x msb=0x%02x lsb=0x%02x\n",
+ cmd, *msb, *lsb);
spin_lock(&pcipcwd_private.io_lock);
/* If a command requires data it should be written first.
if (debug >= DEBUG) {
if (got_response) {
- printk(KERN_DEBUG PFX
- "time to process command was: %d ms\n",
- count);
+ pr_debug("time to process command was: %d ms\n",
+ count);
} else {
- printk(KERN_DEBUG PFX
- "card did not respond on command!\n");
+ pr_debug("card did not respond on command!\n");
}
}
inb_p(pcipcwd_private.io_addr + 6);
if (debug >= DEBUG)
- printk(KERN_DEBUG PFX "received following data for "
- "cmd=0x%02x: msb=0x%02x lsb=0x%02x\n",
- cmd, *msb, *lsb);
+ pr_debug("received following data for cmd=0x%02x: msb=0x%02x lsb=0x%02x\n",
+ cmd, *msb, *lsb);
}
spin_unlock(&pcipcwd_private.io_lock);
/* Get switch settings */
option_switches = pcipcwd_get_option_switches();
- printk(KERN_INFO PFX "Found card at port "
- "0x%04x (Firmware: %s) %s temp option\n",
+ pr_info("Found card at port 0x%04x (Firmware: %s) %s temp option\n",
(int) pcipcwd_private.io_addr, fw_ver_str,
(pcipcwd_private.supports_temp ? "with" : "without"));
- printk(KERN_INFO PFX "Option switches (0x%02x): "
- "Temperature Reset Enable=%s, Power On Delay=%s\n",
+ pr_info("Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
option_switches,
((option_switches & 0x10) ? "ON" : "OFF"),
((option_switches & 0x08) ? "ON" : "OFF"));
if (pcipcwd_private.boot_status & WDIOF_CARDRESET)
- printk(KERN_INFO PFX
- "Previous reset was caused by the Watchdog card\n");
+ pr_info("Previous reset was caused by the Watchdog card\n");
if (pcipcwd_private.boot_status & WDIOF_OVERHEAT)
- printk(KERN_INFO PFX "Card sensed a CPU Overheat\n");
+ pr_info("Card sensed a CPU Overheat\n");
if (pcipcwd_private.boot_status == 0)
- printk(KERN_INFO PFX
- "No previous trip detected - Cold boot or reset\n");
+ pr_info("No previous trip detected - Cold boot or reset\n");
}
static int pcipcwd_start(void)
spin_unlock(&pcipcwd_private.io_lock);
if (stat_reg & WD_PCI_WDIS) {
- printk(KERN_ERR PFX "Card timer not enabled\n");
+ pr_err("Card timer not enabled\n");
return -1;
}
if (debug >= VERBOSE)
- printk(KERN_DEBUG PFX "Watchdog started\n");
+ pr_debug("Watchdog started\n");
return 0;
}
spin_unlock(&pcipcwd_private.io_lock);
if (!(stat_reg & WD_PCI_WDIS)) {
- printk(KERN_ERR PFX
- "Card did not acknowledge disable attempt\n");
+ pr_err("Card did not acknowledge disable attempt\n");
return -1;
}
if (debug >= VERBOSE)
- printk(KERN_DEBUG PFX "Watchdog stopped\n");
+ pr_debug("Watchdog stopped\n");
return 0;
}
spin_unlock(&pcipcwd_private.io_lock);
if (debug >= DEBUG)
- printk(KERN_DEBUG PFX "Watchdog keepalive signal send\n");
+ pr_debug("Watchdog keepalive signal send\n");
return 0;
}
heartbeat = t;
if (debug >= VERBOSE)
- printk(KERN_DEBUG PFX "New heartbeat: %d\n",
- heartbeat);
+ pr_debug("New heartbeat: %d\n", heartbeat);
return 0;
}
if (control_status & WD_PCI_TTRP) {
*status |= WDIOF_OVERHEAT;
if (temp_panic)
- panic(PFX "Temperature overheat trip!\n");
+ panic(KBUILD_MODNAME ": Temperature overheat trip!\n");
}
if (debug >= DEBUG)
- printk(KERN_DEBUG PFX "Control Status #1: 0x%02x\n",
- control_status);
+ pr_debug("Control Status #1: 0x%02x\n", control_status);
return 0;
}
int reset_counter;
if (debug >= VERBOSE)
- printk(KERN_INFO PFX "clearing watchdog trip status & LED\n");
+ pr_info("clearing watchdog trip status & LED\n");
control_status = inb_p(pcipcwd_private.io_addr + 1);
if (debug >= DEBUG) {
- printk(KERN_DEBUG PFX "status was: 0x%02x\n", control_status);
- printk(KERN_DEBUG PFX "sending: 0x%02x\n",
- (control_status & WD_PCI_R2DS) | WD_PCI_WTRP);
+ pr_debug("status was: 0x%02x\n", control_status);
+ pr_debug("sending: 0x%02x\n",
+ (control_status & WD_PCI_R2DS) | WD_PCI_WTRP);
}
/* clear trip status & LED and keep mode of relay 2 */
send_command(CMD_GET_CLEAR_RESET_COUNT, &msb, &reset_counter);
if (debug >= DEBUG) {
- printk(KERN_DEBUG PFX "reset count was: 0x%02x\n",
- reset_counter);
+ pr_debug("reset count was: 0x%02x\n", reset_counter);
}
return 0;
*temperature = (*temperature * 9 / 5) + 32;
if (debug >= DEBUG) {
- printk(KERN_DEBUG PFX "temperature is: %d F\n",
- *temperature);
+ pr_debug("temperature is: %d F\n", *temperature);
}
return 0;
*time_left = (msb << 8) + lsb;
if (debug >= VERBOSE)
- printk(KERN_DEBUG PFX "Time left before next reboot: %d\n",
- *time_left);
+ pr_debug("Time left before next reboot: %d\n", *time_left);
return 0;
}
/* /dev/watchdog can only be opened once */
if (test_and_set_bit(0, &is_active)) {
if (debug >= VERBOSE)
- printk(KERN_ERR PFX
- "Attempt to open already opened device.\n");
+ pr_err("Attempt to open already opened device\n");
return -EBUSY;
}
if (expect_release == 42) {
pcipcwd_stop();
} else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
pcipcwd_keepalive();
}
expect_release = 0;
cards_found++;
if (cards_found == 1)
- printk(KERN_INFO PFX DRIVER_VERSION);
+ pr_info("%s\n", DRIVER_VERSION);
if (cards_found > 1) {
- printk(KERN_ERR PFX "This driver only supports 1 device\n");
+ pr_err("This driver only supports 1 device\n");
return -ENODEV;
}
if (pci_enable_device(pdev)) {
- printk(KERN_ERR PFX "Not possible to enable PCI Device\n");
+ pr_err("Not possible to enable PCI Device\n");
return -ENODEV;
}
if (pci_resource_start(pdev, 0) == 0x0000) {
- printk(KERN_ERR PFX "No I/O-Address for card detected\n");
+ pr_err("No I/O-Address for card detected\n");
ret = -ENODEV;
goto err_out_disable_device;
}
pcipcwd_private.io_addr = pci_resource_start(pdev, 0);
if (pci_request_regions(pdev, WATCHDOG_NAME)) {
- printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
- (int) pcipcwd_private.io_addr);
+ pr_err("I/O address 0x%04x already in use\n",
+ (int) pcipcwd_private.io_addr);
ret = -EIO;
goto err_out_disable_device;
}
* if not reset to the default */
if (pcipcwd_set_heartbeat(heartbeat)) {
pcipcwd_set_heartbeat(WATCHDOG_HEARTBEAT);
- printk(KERN_INFO PFX
- "heartbeat value must be 0<heartbeat<65536, using %d\n",
+ pr_info("heartbeat value must be 0<heartbeat<65536, using %d\n",
WATCHDOG_HEARTBEAT);
}
ret = register_reboot_notifier(&pcipcwd_notifier);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", ret);
+ pr_err("cannot register reboot notifier (err=%d)\n", ret);
goto err_out_release_region;
}
if (pcipcwd_private.supports_temp) {
ret = misc_register(&pcipcwd_temp_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX "cannot register miscdev on "
- "minor=%d (err=%d)\n", TEMP_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ TEMP_MINOR, ret);
goto err_out_unregister_reboot;
}
}
ret = misc_register(&pcipcwd_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto err_out_misc_deregister;
}
- printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
+ pr_info("initialized. heartbeat=%d sec (nowayout=%d)\n",
heartbeat, nowayout);
return 0;
{
pci_unregister_driver(&pcipcwd_driver);
- printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+ pr_info("Watchdog Module Unloaded\n");
}
module_init(pcipcwd_init_module);
* http://www.berkprod.com/ or http://www.pcwatchdog.com/
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h> /* For module specific items */
#include <linux/moduleparam.h> /* For new moduleparam's */
#include <linux/types.h> /* For standard types (like size_t) */
#include <linux/hid.h> /* For HID_REQ_SET_REPORT & HID_DT_REPORT */
#include <linux/uaccess.h> /* For copy_to_user/put_user/... */
-
#ifdef CONFIG_USB_DEBUG
- static int debug = 1;
+static int debug = 1;
#else
- static int debug;
+static int debug;
#endif
/* Use our own dbg macro */
+
#undef dbg
-#define dbg(format, arg...) \
- do { if (debug) printk(KERN_DEBUG PFX format "\n" , ## arg); } while (0)
+#ifndef DEBUG
+#define DEBUG
+#endif
+#define dbg(format, ...) \
+do { \
+ if (debug) \
+ pr_debug(format "\n", ##__VA_ARGS__); \
+} while (0)
/* Module and Version Information */
#define DRIVER_VERSION "1.02"
#define DRIVER_DESC "Berkshire USB-PC Watchdog driver"
#define DRIVER_LICENSE "GPL"
#define DRIVER_NAME "pcwd_usb"
-#define PFX DRIVER_NAME ": "
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
"(0<heartbeat<65536 or 0=delay-time from dip-switches, default="
__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
resubmit:
retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval)
- printk(KERN_ERR PFX "can't resubmit intr, "
- "usb_submit_urb failed with result %d\n", retval);
+ pr_err("can't resubmit intr, usb_submit_urb failed with result %d\n",
+ retval);
}
static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd,
&msb, &lsb);
if ((retval == 0) || (lsb == 0)) {
- printk(KERN_ERR PFX
- "Card did not acknowledge enable attempt\n");
+ pr_err("Card did not acknowledge enable attempt\n");
return -1;
}
&msb, &lsb);
if ((retval == 0) || (lsb != 0)) {
- printk(KERN_ERR PFX
- "Card did not acknowledge disable attempt\n");
+ pr_err("Card did not acknowledge disable attempt\n");
return -1;
}
if (expect_release == 42) {
usb_pcwd_stop(usb_pcwd_device);
} else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
usb_pcwd_keepalive(usb_pcwd_device);
}
expect_release = 0;
cards_found++;
if (cards_found > 1) {
- printk(KERN_ERR PFX "This driver only supports 1 device\n");
+ pr_err("This driver only supports 1 device\n");
return -ENODEV;
}
/* check out that we have a HID device */
if (!(iface_desc->desc.bInterfaceClass == USB_CLASS_HID)) {
- printk(KERN_ERR PFX
- "The device isn't a Human Interface Device\n");
+ pr_err("The device isn't a Human Interface Device\n");
return -ENODEV;
}
if (!usb_endpoint_is_int_in(endpoint)) {
/* we didn't find a Interrupt endpoint with direction IN */
- printk(KERN_ERR PFX "Couldn't find an INTR & IN endpoint\n");
+ pr_err("Couldn't find an INTR & IN endpoint\n");
return -ENODEV;
}
/* allocate memory for our device and initialize it */
usb_pcwd = kzalloc(sizeof(struct usb_pcwd_private), GFP_KERNEL);
if (usb_pcwd == NULL) {
- printk(KERN_ERR PFX "Out of memory\n");
+ pr_err("Out of memory\n");
goto error;
}
usb_pcwd->intr_buffer = usb_alloc_coherent(udev, usb_pcwd->intr_size,
GFP_ATOMIC, &usb_pcwd->intr_dma);
if (!usb_pcwd->intr_buffer) {
- printk(KERN_ERR PFX "Out of memory\n");
+ pr_err("Out of memory\n");
goto error;
}
/* allocate the urb's */
usb_pcwd->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!usb_pcwd->intr_urb) {
- printk(KERN_ERR PFX "Out of memory\n");
+ pr_err("Out of memory\n");
goto error;
}
/* register our interrupt URB with the USB system */
if (usb_submit_urb(usb_pcwd->intr_urb, GFP_KERNEL)) {
- printk(KERN_ERR PFX "Problem registering interrupt URB\n");
+ pr_err("Problem registering interrupt URB\n");
retval = -EIO; /* failure */
goto error;
}
else
sprintf(fw_ver_str, "<card no answer>");
- printk(KERN_INFO PFX "Found card (Firmware: %s) with temp option\n",
- fw_ver_str);
+ pr_info("Found card (Firmware: %s) with temp option\n", fw_ver_str);
/* Get switch settings */
usb_pcwd_send_command(usb_pcwd, CMD_GET_DIP_SWITCH_SETTINGS, &dummy,
&option_switches);
- printk(KERN_INFO PFX "Option switches (0x%02x): "
- "Temperature Reset Enable=%s, Power On Delay=%s\n",
+ pr_info("Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
option_switches,
((option_switches & 0x10) ? "ON" : "OFF"),
((option_switches & 0x08) ? "ON" : "OFF"));
* if not reset to the default */
if (usb_pcwd_set_heartbeat(usb_pcwd, heartbeat)) {
usb_pcwd_set_heartbeat(usb_pcwd, WATCHDOG_HEARTBEAT);
- printk(KERN_INFO PFX
- "heartbeat value must be 0<heartbeat<65536, using %d\n",
+ pr_info("heartbeat value must be 0<heartbeat<65536, using %d\n",
WATCHDOG_HEARTBEAT);
}
retval = register_reboot_notifier(&usb_pcwd_notifier);
if (retval != 0) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n",
- retval);
+ pr_err("cannot register reboot notifier (err=%d)\n", retval);
goto error;
}
retval = misc_register(&usb_pcwd_temperature_miscdev);
if (retval != 0) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- TEMP_MINOR, retval);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ TEMP_MINOR, retval);
goto err_out_unregister_reboot;
}
retval = misc_register(&usb_pcwd_miscdev);
if (retval != 0) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, retval);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, retval);
goto err_out_misc_deregister;
}
/* we can register the device now, as it is ready */
usb_set_intfdata(interface, usb_pcwd);
- printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
+ pr_info("initialized. heartbeat=%d sec (nowayout=%d)\n",
heartbeat, nowayout);
return 0;
mutex_unlock(&disconnect_mutex);
- printk(KERN_INFO PFX "USB PC Watchdog disconnected\n");
+ pr_info("USB PC Watchdog disconnected\n");
}
module_usb_driver(usb_pcwd_driver);
* Sean MacLennan <smaclennan@pikatech.com>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/of_platform.h>
#define DRV_NAME "PIKA-WDT"
-#define PFX DRV_NAME ": "
/* Hardware timeout in seconds */
#define WDT_HW_TIMEOUT 2
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeats in seconds. "
"(default = " __MODULE_STRING(WDT_HEARTBEAT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
"(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
pikawdt_reset();
mod_timer(&pikawdt_private.timer, jiffies + WDT_TIMEOUT);
} else
- printk(KERN_CRIT PFX "I will reset your machine !\n");
+ pr_crit("I will reset your machine !\n");
}
np = of_find_compatible_node(NULL, NULL, "pika,fpga");
if (np == NULL) {
- printk(KERN_ERR PFX "Unable to find fpga.\n");
+ pr_err("Unable to find fpga\n");
return -ENOENT;
}
pikawdt_private.fpga = of_iomap(np, 0);
of_node_put(np);
if (pikawdt_private.fpga == NULL) {
- printk(KERN_ERR PFX "Unable to map fpga.\n");
+ pr_err("Unable to map fpga\n");
return -ENOMEM;
}
/* POST information is in the sd area. */
np = of_find_compatible_node(NULL, NULL, "pika,fpga-sd");
if (np == NULL) {
- printk(KERN_ERR PFX "Unable to find fpga-sd.\n");
+ pr_err("Unable to find fpga-sd\n");
ret = -ENOENT;
goto out;
}
fpga = of_iomap(np, 0);
of_node_put(np);
if (fpga == NULL) {
- printk(KERN_ERR PFX "Unable to map fpga-sd.\n");
+ pr_err("Unable to map fpga-sd\n");
ret = -ENOMEM;
goto out;
}
ret = misc_register(&pikawdt_miscdev);
if (ret) {
- printk(KERN_ERR PFX "Unable to register miscdev.\n");
+ pr_err("Unable to register miscdev\n");
goto out;
}
- printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
- heartbeat, nowayout);
+ pr_info("initialized. heartbeat=%d sec (nowayout=%d)\n",
+ heartbeat, nowayout);
return 0;
out:
* Based on sa1100 driver,
* Copyright (C) 2000 Oleg Drokin <green@crimea.edu>
*
- * 2005-2006 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
+ * 2005-2006 (c) MontaVista Software, Inc.
+ *
+ * (C) 2012 Wolfram Sang, Pengutronix
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/init.h>
-#include <linux/bitops.h>
-#include <linux/ioport.h>
-#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/spinlock.h>
-#include <linux/uaccess.h>
#include <linux/io.h>
#include <linux/slab.h>
+#include <linux/err.h>
#include <mach/hardware.h>
-#define MODULE_NAME "PNX4008-WDT: "
-
/* WatchDog Timer - Chapter 23 Page 207 */
#define DEFAULT_HEARTBEAT 19
#define WDOG_COUNTER_RATE 13000000 /*the counter clock is 13 MHz fixed */
-static int nowayout = WATCHDOG_NOWAYOUT;
-static int heartbeat = DEFAULT_HEARTBEAT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
+static unsigned int heartbeat = DEFAULT_HEARTBEAT;
static DEFINE_SPINLOCK(io_lock);
-static unsigned long wdt_status;
-#define WDT_IN_USE 0
-#define WDT_OK_TO_CLOSE 1
-#define WDT_REGION_INITED 2
-#define WDT_DEVICE_INITED 3
-
-static unsigned long boot_status;
-
-static struct resource *wdt_mem;
static void __iomem *wdt_base;
struct clk *wdt_clk;
-static void wdt_enable(void)
+static int pnx4008_wdt_start(struct watchdog_device *wdd)
{
spin_lock(&io_lock);
/* stop counter, initiate counter reset */
- __raw_writel(RESET_COUNT, WDTIM_CTRL(wdt_base));
+ writel(RESET_COUNT, WDTIM_CTRL(wdt_base));
/*wait for reset to complete. 100% guarantee event */
- while (__raw_readl(WDTIM_COUNTER(wdt_base)))
+ while (readl(WDTIM_COUNTER(wdt_base)))
cpu_relax();
/* internal and external reset, stop after that */
- __raw_writel(M_RES2 | STOP_COUNT0 | RESET_COUNT0,
- WDTIM_MCTRL(wdt_base));
+ writel(M_RES2 | STOP_COUNT0 | RESET_COUNT0, WDTIM_MCTRL(wdt_base));
/* configure match output */
- __raw_writel(MATCH_OUTPUT_HIGH, WDTIM_EMR(wdt_base));
+ writel(MATCH_OUTPUT_HIGH, WDTIM_EMR(wdt_base));
/* clear interrupt, just in case */
- __raw_writel(MATCH_INT, WDTIM_INT(wdt_base));
+ writel(MATCH_INT, WDTIM_INT(wdt_base));
/* the longest pulse period 65541/(13*10^6) seconds ~ 5 ms. */
- __raw_writel(0xFFFF, WDTIM_PULSE(wdt_base));
- __raw_writel(heartbeat * WDOG_COUNTER_RATE, WDTIM_MATCH0(wdt_base));
+ writel(0xFFFF, WDTIM_PULSE(wdt_base));
+ writel(wdd->timeout * WDOG_COUNTER_RATE, WDTIM_MATCH0(wdt_base));
/*enable counter, stop when debugger active */
- __raw_writel(COUNT_ENAB | DEBUG_EN, WDTIM_CTRL(wdt_base));
+ writel(COUNT_ENAB | DEBUG_EN, WDTIM_CTRL(wdt_base));
spin_unlock(&io_lock);
+ return 0;
}
-static void wdt_disable(void)
+static int pnx4008_wdt_stop(struct watchdog_device *wdd)
{
spin_lock(&io_lock);
- __raw_writel(0, WDTIM_CTRL(wdt_base)); /*stop counter */
+ writel(0, WDTIM_CTRL(wdt_base)); /*stop counter */
spin_unlock(&io_lock);
+ return 0;
}
-static int pnx4008_wdt_open(struct inode *inode, struct file *file)
-{
- int ret;
-
- if (test_and_set_bit(WDT_IN_USE, &wdt_status))
- return -EBUSY;
-
- clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
- ret = clk_enable(wdt_clk);
- if (ret) {
- clear_bit(WDT_IN_USE, &wdt_status);
- return ret;
- }
-
- wdt_enable();
-
- return nonseekable_open(inode, file);
-}
-
-static ssize_t pnx4008_wdt_write(struct file *file, const char *data,
- size_t len, loff_t *ppos)
+static int pnx4008_wdt_set_timeout(struct watchdog_device *wdd,
+ unsigned int new_timeout)
{
- if (len) {
- if (!nowayout) {
- size_t i;
-
- clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
- for (i = 0; i != len; i++) {
- char c;
-
- if (get_user(c, data + i))
- return -EFAULT;
- if (c == 'V')
- set_bit(WDT_OK_TO_CLOSE, &wdt_status);
- }
- }
- wdt_enable();
- }
-
- return len;
+ wdd->timeout = new_timeout;
+ return 0;
}
-static const struct watchdog_info ident = {
+static const struct watchdog_info pnx4008_wdt_ident = {
.options = WDIOF_CARDRESET | WDIOF_MAGICCLOSE |
WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
.identity = "PNX4008 Watchdog",
};
-static long pnx4008_wdt_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- int ret = -ENOTTY;
- int time;
-
- switch (cmd) {
- case WDIOC_GETSUPPORT:
- ret = copy_to_user((struct watchdog_info *)arg, &ident,
- sizeof(ident)) ? -EFAULT : 0;
- break;
-
- case WDIOC_GETSTATUS:
- ret = put_user(0, (int *)arg);
- break;
-
- case WDIOC_GETBOOTSTATUS:
- ret = put_user(boot_status, (int *)arg);
- break;
-
- case WDIOC_KEEPALIVE:
- wdt_enable();
- ret = 0;
- break;
-
- case WDIOC_SETTIMEOUT:
- ret = get_user(time, (int *)arg);
- if (ret)
- break;
-
- if (time <= 0 || time > MAX_HEARTBEAT) {
- ret = -EINVAL;
- break;
- }
-
- heartbeat = time;
- wdt_enable();
- /* Fall through */
-
- case WDIOC_GETTIMEOUT:
- ret = put_user(heartbeat, (int *)arg);
- break;
- }
- return ret;
-}
-
-static int pnx4008_wdt_release(struct inode *inode, struct file *file)
-{
- if (!test_bit(WDT_OK_TO_CLOSE, &wdt_status))
- printk(KERN_WARNING "WATCHDOG: Device closed unexpectedly\n");
-
- wdt_disable();
- clk_disable(wdt_clk);
- clear_bit(WDT_IN_USE, &wdt_status);
- clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-
- return 0;
-}
-
-static const struct file_operations pnx4008_wdt_fops = {
+static const struct watchdog_ops pnx4008_wdt_ops = {
.owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = pnx4008_wdt_write,
- .unlocked_ioctl = pnx4008_wdt_ioctl,
- .open = pnx4008_wdt_open,
- .release = pnx4008_wdt_release,
+ .start = pnx4008_wdt_start,
+ .stop = pnx4008_wdt_stop,
+ .set_timeout = pnx4008_wdt_set_timeout,
};
-static struct miscdevice pnx4008_wdt_miscdev = {
- .minor = WATCHDOG_MINOR,
- .name = "watchdog",
- .fops = &pnx4008_wdt_fops,
+static struct watchdog_device pnx4008_wdd = {
+ .info = &pnx4008_wdt_ident,
+ .ops = &pnx4008_wdt_ops,
+ .min_timeout = 1,
+ .max_timeout = MAX_HEARTBEAT,
};
static int __devinit pnx4008_wdt_probe(struct platform_device *pdev)
{
- int ret = 0, size;
+ struct resource *r;
+ int ret = 0;
if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
heartbeat = DEFAULT_HEARTBEAT;
- printk(KERN_INFO MODULE_NAME
- "PNX4008 Watchdog Timer: heartbeat %d sec\n", heartbeat);
-
- wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (wdt_mem == NULL) {
- printk(KERN_INFO MODULE_NAME
- "failed to get memory region resource\n");
- return -ENOENT;
- }
-
- size = resource_size(wdt_mem);
-
- if (!request_mem_region(wdt_mem->start, size, pdev->name)) {
- printk(KERN_INFO MODULE_NAME "failed to get memory region\n");
- return -ENOENT;
- }
- wdt_base = (void __iomem *)IO_ADDRESS(wdt_mem->start);
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ wdt_base = devm_request_and_ioremap(&pdev->dev, r);
+ if (!wdt_base)
+ return -EADDRINUSE;
wdt_clk = clk_get(&pdev->dev, NULL);
- if (IS_ERR(wdt_clk)) {
- ret = PTR_ERR(wdt_clk);
- release_mem_region(wdt_mem->start, size);
- wdt_mem = NULL;
- goto out;
- }
+ if (IS_ERR(wdt_clk))
+ return PTR_ERR(wdt_clk);
ret = clk_enable(wdt_clk);
- if (ret) {
- release_mem_region(wdt_mem->start, size);
- wdt_mem = NULL;
- clk_put(wdt_clk);
+ if (ret)
goto out;
- }
- ret = misc_register(&pnx4008_wdt_miscdev);
+ pnx4008_wdd.timeout = heartbeat;
+ pnx4008_wdd.bootstatus = (readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ?
+ WDIOF_CARDRESET : 0;
+ watchdog_set_nowayout(&pnx4008_wdd, nowayout);
+
+ pnx4008_wdt_stop(&pnx4008_wdd); /* disable for now */
+
+ ret = watchdog_register_device(&pnx4008_wdd);
if (ret < 0) {
- printk(KERN_ERR MODULE_NAME "cannot register misc device\n");
- release_mem_region(wdt_mem->start, size);
- wdt_mem = NULL;
- clk_disable(wdt_clk);
- clk_put(wdt_clk);
- } else {
- boot_status = (__raw_readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ?
- WDIOF_CARDRESET : 0;
- wdt_disable(); /*disable for now */
- clk_disable(wdt_clk);
- set_bit(WDT_DEVICE_INITED, &wdt_status);
+ dev_err(&pdev->dev, "cannot register watchdog device\n");
+ goto disable_clk;
}
+ dev_info(&pdev->dev, "PNX4008 Watchdog Timer: heartbeat %d sec\n",
+ heartbeat);
+
+ return 0;
+
+disable_clk:
+ clk_disable(wdt_clk);
out:
+ clk_put(wdt_clk);
return ret;
}
static int __devexit pnx4008_wdt_remove(struct platform_device *pdev)
{
- misc_deregister(&pnx4008_wdt_miscdev);
+ watchdog_unregister_device(&pnx4008_wdd);
clk_disable(wdt_clk);
clk_put(wdt_clk);
- if (wdt_mem) {
- release_mem_region(wdt_mem->start, resource_size(wdt_mem));
- wdt_mem = NULL;
- }
return 0;
}
module_platform_driver(platform_wdt_driver);
MODULE_AUTHOR("MontaVista Software, Inc. <source@mvista.com>");
+MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>");
MODULE_DESCRIPTION("PNX4008 Watchdog Driver");
-module_param(heartbeat, int, 0);
+module_param(heartbeat, uint, 0);
MODULE_PARM_DESC(heartbeat,
"Watchdog heartbeat period in seconds from 1 to "
__MODULE_STRING(MAX_HEARTBEAT) ", default "
__MODULE_STRING(DEFAULT_HEARTBEAT));
-module_param(nowayout, int, 0);
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Set to 1 to keep watchdog running after device release");
* based on softdog.c by Alan Cox <alan@redhat.com>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/init.h>
#include <asm/mach-pnx833x/pnx833x.h>
-#define PFX "pnx833x: "
#define WATCHDOG_TIMEOUT 30 /* 30 sec Maximum timeout */
#define WATCHDOG_COUNT_FREQUENCY 68000000U /* Watchdog counts at 68MHZ. */
#define PNX_WATCHDOG_TIMEOUT (WATCHDOG_TIMEOUT * WATCHDOG_COUNT_FREQUENCY)
MODULE_PARM_DESC(timeout, "Watchdog timeout in Mhz. (68Mhz clock), default="
__MODULE_STRING(PNX_TIMEOUT_VALUE) "(30 seconds).");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
PNX833X_REG(PNX833X_CONFIG +
PNX833X_CONFIG_CPU_COUNTERS_CONTROL) |= 0x1;
- printk(KERN_INFO PFX "Started watchdog timer.\n");
+ pr_info("Started watchdog timer\n");
}
static void pnx833x_wdt_stop(void)
PNX833X_REG(PNX833X_CONFIG +
PNX833X_CONFIG_CPU_COUNTERS_CONTROL) &= 0xFFFFFFFE;
- printk(KERN_INFO PFX "Stopped watchdog timer.\n");
+ pr_info("Stopped watchdog timer\n");
}
static void pnx833x_wdt_ping(void)
pnx833x_wdt_ping();
- printk(KERN_INFO "Started watchdog timer.\n");
+ pr_info("Started watchdog timer\n");
return nonseekable_open(inode, file);
}
.notifier_call = pnx833x_wdt_notify_sys,
};
-static char banner[] __initdata =
- KERN_INFO PFX "Hardware Watchdog Timer for PNX833x: Version 0.1\n";
-
static int __init watchdog_init(void)
{
int ret, cause;
cause = PNX833X_REG(PNX833X_RESET);
/*If bit 31 is set then watchdog was cause of reset.*/
if (cause & 0x80000000) {
- printk(KERN_INFO PFX "The system was previously reset due to "
- "the watchdog firing - please investigate...\n");
+ pr_info("The system was previously reset due to the watchdog firing - please investigate...\n");
}
ret = register_reboot_notifier(&pnx833x_wdt_notifier);
if (ret) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", ret);
+ pr_err("cannot register reboot notifier (err=%d)\n", ret);
return ret;
}
ret = misc_register(&pnx833x_wdt_miscdev);
if (ret) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
unregister_reboot_notifier(&pnx833x_wdt_notifier);
return ret;
}
- printk(banner);
+ pr_info("Hardware Watchdog Timer for PNX833x: Version 0.1\n");
+
if (start_enabled)
pnx833x_wdt_start();
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h> /* For module specific items */
#include <linux/moduleparam.h> /* For new moduleparam's */
#include <linux/types.h> /* For standard types (like size_t) */
#include <asm/mach-rc32434/integ.h> /* For the Watchdog registers */
-#define PFX KBUILD_MODNAME ": "
-
#define VERSION "1.0"
static struct {
MODULE_PARM_DESC(timeout, "Watchdog timeout value, in seconds (default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
int max_to = WTCOMP2SEC((u32)-1);
if (new_timeout < 0 || new_timeout > max_to) {
- printk(KERN_ERR PFX "timeout value must be between 0 and %d",
- max_to);
+ pr_err("timeout value must be between 0 and %d\n", max_to);
return -EINVAL;
}
timeout = new_timeout;
SET_BITS(wdt_reg->wtc, or, nand);
spin_unlock(&rc32434_wdt_device.io_lock);
- printk(KERN_INFO PFX "Started watchdog timer.\n");
+ pr_info("Started watchdog timer\n");
}
static void rc32434_wdt_stop(void)
SET_BITS(wdt_reg->wtc, 0, 1 << RC32434_WTC_EN);
spin_unlock(&rc32434_wdt_device.io_lock);
- printk(KERN_INFO PFX "Stopped watchdog timer.\n");
+ pr_info("Stopped watchdog timer\n");
}
static void rc32434_wdt_ping(void)
rc32434_wdt_stop();
module_put(THIS_MODULE);
} else {
- printk(KERN_CRIT PFX
- "device closed unexpectedly. WDT will not stop!\n");
+ pr_crit("device closed unexpectedly. WDT will not stop!\n");
rc32434_wdt_ping();
}
clear_bit(0, &rc32434_wdt_device.inuse);
.fops = &rc32434_wdt_fops,
};
-static char banner[] __devinitdata = KERN_INFO PFX
- "Watchdog Timer version " VERSION ", timer margin: %d sec\n";
-
static int __devinit rc32434_wdt_probe(struct platform_device *pdev)
{
int ret;
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rb532_wdt_res");
if (!r) {
- printk(KERN_ERR PFX "failed to retrieve resources\n");
+ pr_err("failed to retrieve resources\n");
return -ENODEV;
}
wdt_reg = ioremap_nocache(r->start, resource_size(r));
if (!wdt_reg) {
- printk(KERN_ERR PFX "failed to remap I/O resources\n");
+ pr_err("failed to remap I/O resources\n");
return -ENXIO;
}
* if not reset to the default */
if (rc32434_wdt_set(timeout)) {
rc32434_wdt_set(WATCHDOG_TIMEOUT);
- printk(KERN_INFO PFX
- "timeout value must be between 0 and %d\n",
+ pr_info("timeout value must be between 0 and %d\n",
WTCOMP2SEC((u32)-1));
}
ret = misc_register(&rc32434_wdt_miscdev);
if (ret < 0) {
- printk(KERN_ERR PFX "failed to register watchdog device\n");
+ pr_err("failed to register watchdog device\n");
goto unmap;
}
- printk(banner, timeout);
+ pr_info("Watchdog Timer version " VERSION ", timer margin: %d sec\n",
+ timeout);
return 0;
* Copyright (C) 2001, 2008 David S. Miller (davem@davemloft.net)
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/types.h>
p->regs = of_ioremap(&op->resource[0], 0, 2, DRIVER_NAME);
if (!p->regs) {
- printk(KERN_ERR PFX "Cannot map registers.\n");
+ pr_err("Cannot map registers\n");
goto out_free;
}
/* Make miscdev useable right away */
err = misc_register(&riowd_miscdev);
if (err) {
- printk(KERN_ERR PFX "Cannot register watchdog misc device.\n");
+ pr_err("Cannot register watchdog misc device\n");
goto out_iounmap;
}
- printk(KERN_INFO PFX "Hardware watchdog [%i minutes], "
- "regs at %p\n", riowd_timeout, p->regs);
+ pr_info("Hardware watchdog [%i minutes], regs at %p\n",
+ riowd_timeout, p->regs);
dev_set_drvdata(&op->dev, p);
return 0;
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <plat/regs-watchdog.h>
-#define PFX "s3c2410-wdt: "
-
#define CONFIG_S3C2410_WATCHDOG_ATBOOT (0)
#define CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME (15)
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
static int tmr_margin = CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME;
static int tmr_atboot = CONFIG_S3C2410_WATCHDOG_ATBOOT;
static int soft_noboot;
module_param(tmr_margin, int, 0);
module_param(tmr_atboot, int, 0);
-module_param(nowayout, int, 0);
+module_param(nowayout, bool, 0);
module_param(soft_noboot, int, 0);
module_param(debug, int, 0);
/* watchdog control routines */
-#define DBG(msg...) do { \
- if (debug) \
- printk(KERN_INFO msg); \
- } while (0)
+#define DBG(fmt, ...) \
+do { \
+ if (debug) \
+ pr_info(fmt, ##__VA_ARGS__); \
+} while (0)
/* functions */
writel(count, wdt_base + S3C2410_WTDAT);
writel(wtcon, wdt_base + S3C2410_WTCON);
+ wdd->timeout = timeout;
+
return 0;
}
ret = s3c2410wdt_cpufreq_register();
if (ret < 0) {
- printk(KERN_ERR PFX "failed to register cpufreq\n");
+ pr_err("failed to register cpufreq\n");
goto err_clk;
}
writel(wtdat_save, wdt_base + S3C2410_WTCNT); /* Reset count */
writel(wtcon_save, wdt_base + S3C2410_WTCON);
- printk(KERN_INFO PFX "watchdog %sabled\n",
- (wtcon_save & S3C2410_WTCON_ENABLE) ? "en" : "dis");
+ pr_info("watchdog %sabled\n",
+ (wtcon_save & S3C2410_WTCON_ENABLE) ? "en" : "dis");
return 0;
}
};
-static char banner[] __initdata =
- KERN_INFO "S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics\n";
-
static int __init watchdog_init(void)
{
- printk(banner);
+ pr_info("S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics\n");
+
return platform_driver_register(&s3c2410wdt_driver);
}
*
* 27/11/2000 Initial release
*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
*/
static int sa1100dog_release(struct inode *inode, struct file *file)
{
- printk(KERN_CRIT "WATCHDOG: Device closed - timer will not stop\n");
+ pr_crit("Device closed - timer will not stop\n");
clear_bit(1, &sa1100wdt_users);
return 0;
}
ret = misc_register(&sa1100dog_miscdev);
if (ret == 0)
- printk(KERN_INFO
- "SA1100/PXA2xx Watchdog Timer: timer margin %d sec\n",
- margin);
+ pr_info("SA1100/PXA2xx Watchdog Timer: timer margin %d sec\n",
+ margin);
return ret;
}
* version 1 or 2 as published by the Free Software Foundation.
*
*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/io.h>
#include <linux/uaccess.h>
__raw_writeb(0, user_dog);
module_put(THIS_MODULE);
} else {
- printk(KERN_CRIT
- "%s: Unexpected close, not stopping watchdog!\n",
- ident.identity);
+ pr_crit("%s: Unexpected close, not stopping watchdog!\n",
+ ident.identity);
sbwdog_pet(user_dog);
}
clear_bit(0, &sbwdog_gate);
* if it's the second watchdog timer, it's for those users
*/
if (wd_cfg_reg == user_dog)
- printk(KERN_CRIT "%s in danger of initiating system reset "
+ pr_crit("%s in danger of initiating system reset "
"in %ld.%01ld seconds\n",
ident.identity,
wd_init / 1000000, (wd_init / 100000) % 10);
*/
ret = register_reboot_notifier(&sbwdog_notifier);
if (ret) {
- printk(KERN_ERR
- "%s: cannot register reboot notifier (err=%d)\n",
- ident.identity, ret);
+ pr_err("%s: cannot register reboot notifier (err=%d)\n",
+ ident.identity, ret);
return ret;
}
ret = request_irq(1, sbwdog_interrupt, IRQF_SHARED,
ident.identity, (void *)user_dog);
if (ret) {
- printk(KERN_ERR "%s: failed to request irq 1 - %d\n",
- ident.identity, ret);
+ pr_err("%s: failed to request irq 1 - %d\n",
+ ident.identity, ret);
goto out;
}
ret = misc_register(&sbwdog_miscdev);
if (ret == 0) {
- printk(KERN_INFO "%s: timeout is %ld.%ld secs\n",
- ident.identity,
- timeout / 1000000, (timeout / 100000) % 10);
+ pr_info("%s: timeout is %ld.%ld secs\n",
+ ident.identity,
+ timeout / 1000000, (timeout / 100000) % 10);
return 0;
}
free_irq(1, (void *)user_dog);
ret = request_irq(1, sbwdog_interrupt, IRQF_SHARED,
"Kernel Watchdog", IOADDR(A_SCD_WDOG_CFG_0));
if (ret) {
- printk(KERN_CRIT
- "Watchdog IRQ zero(0) failed to be requested - %d\n", ret);
+ pr_crit("Watchdog IRQ zero(0) failed to be requested - %d\n", ret);
}
}
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
"Watchdog timeout in seconds. (1<=timeout<=3600, default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
/* Re-set the timer interval */
mod_timer(&timer, jiffies + WDT_INTERVAL);
} else
- printk(KERN_WARNING PFX
- "Heartbeat lost! Will not ping the watchdog\n");
+ pr_warn("Heartbeat lost! Will not ping the watchdog\n");
}
/*
/* Start the timer */
mod_timer(&timer, jiffies + WDT_INTERVAL);
- printk(KERN_INFO PFX "Watchdog timer is now enabled.\n");
+ pr_info("Watchdog timer is now enabled\n");
}
static void wdt_turnoff(void)
/* Stop the timer */
del_timer(&timer);
inb_p(wdt_stop);
- printk(KERN_INFO PFX "Watchdog timer is now disabled...\n");
+ pr_info("Watchdog timer is now disabled...\n");
}
static void wdt_keepalive(void)
wdt_turnoff();
else {
del_timer(&timer);
- printk(KERN_CRIT PFX
- "device file closed unexpectedly. Will not stop the WDT!\n");
+ pr_crit("device file closed unexpectedly. Will not stop the WDT!\n");
}
clear_bit(0, &wdt_is_open);
wdt_expect_close = 0;
if (timeout < 1 || timeout > 3600) { /* arbitrary upper limit */
timeout = WATCHDOG_TIMEOUT;
- printk(KERN_INFO PFX
- "timeout value must be 1 <= x <= 3600, using %d\n",
- timeout);
+ pr_info("timeout value must be 1 <= x <= 3600, using %d\n",
+ timeout);
}
if (!request_region(wdt_start, 1, "SBC 60XX WDT")) {
- printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
- wdt_start);
+ pr_err("I/O address 0x%04x already in use\n", wdt_start);
rc = -EIO;
goto err_out;
}
/* We cannot reserve 0x45 - the kernel already has! */
if (wdt_stop != 0x45 && wdt_stop != wdt_start) {
if (!request_region(wdt_stop, 1, "SBC 60XX WDT")) {
- printk(KERN_ERR PFX
- "I/O address 0x%04x already in use\n",
- wdt_stop);
+ pr_err("I/O address 0x%04x already in use\n", wdt_stop);
rc = -EIO;
goto err_out_region1;
}
rc = register_reboot_notifier(&wdt_notifier);
if (rc) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", rc);
+ pr_err("cannot register reboot notifier (err=%d)\n", rc);
goto err_out_region2;
}
rc = misc_register(&wdt_miscdev);
if (rc) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- wdt_miscdev.minor, rc);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ wdt_miscdev.minor, rc);
goto err_out_reboot;
}
- printk(KERN_INFO PFX
- "WDT driver for 60XX single board computer initialised. "
- "timeout=%d sec (nowayout=%d)\n", timeout, nowayout);
+ pr_info("WDT driver for 60XX single board computer initialised. timeout=%d sec (nowayout=%d)\n",
+ timeout, nowayout);
return 0;
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/atomic.h>
#include <asm/system.h>
-#define SBC7240_PREFIX "sbc7240_wdt: "
-
#define SBC7240_ENABLE_PORT 0x443
#define SBC7240_DISABLE_PORT 0x043
#define SBC7240_SET_TIMEOUT_PORT SBC7240_ENABLE_PORT
__MODULE_STRING(SBC7240_MAX_TIMEOUT) ", default="
__MODULE_STRING(SBC7240_TIMEOUT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Disable watchdog when closing device file");
#define SBC7240_OPEN_STATUS_BIT 0
/* disable the watchdog */
if (test_and_clear_bit(SBC7240_ENABLED_STATUS_BIT, &wdt_status)) {
inb_p(SBC7240_DISABLE_PORT);
- printk(KERN_INFO SBC7240_PREFIX
- "Watchdog timer is now disabled.\n");
+ pr_info("Watchdog timer is now disabled\n");
}
}
/* enable the watchdog */
if (!test_and_set_bit(SBC7240_ENABLED_STATUS_BIT, &wdt_status)) {
inb_p(SBC7240_ENABLE_PORT);
- printk(KERN_INFO SBC7240_PREFIX
- "Watchdog timer is now enabled.\n");
+ pr_info("Watchdog timer is now enabled\n");
}
}
static int wdt_set_timeout(int t)
{
if (t < 1 || t > SBC7240_MAX_TIMEOUT) {
- printk(KERN_ERR SBC7240_PREFIX
- "timeout value must be 1<=x<=%d\n",
- SBC7240_MAX_TIMEOUT);
+ pr_err("timeout value must be 1<=x<=%d\n", SBC7240_MAX_TIMEOUT);
return -1;
}
/* set the timeout */
outb_p((unsigned)t, SBC7240_SET_TIMEOUT_PORT);
timeout = t;
- printk(KERN_INFO SBC7240_PREFIX "timeout set to %d seconds\n", t);
+ pr_info("timeout set to %d seconds\n", t);
return 0;
}
|| !nowayout) {
wdt_disable();
} else {
- printk(KERN_CRIT SBC7240_PREFIX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
wdt_keepalive();
}
static void __exit sbc7240_wdt_unload(void)
{
- printk(KERN_INFO SBC7240_PREFIX "Removing watchdog\n");
+ pr_info("Removing watchdog\n");
misc_deregister(&wdt_miscdev);
unregister_reboot_notifier(&wdt_notifier);
int rc = -EBUSY;
if (!request_region(SBC7240_ENABLE_PORT, 1, "SBC7240 WDT")) {
- printk(KERN_ERR SBC7240_PREFIX
- "I/O address 0x%04x already in use\n",
+ pr_err("I/O address 0x%04x already in use\n",
SBC7240_ENABLE_PORT);
rc = -EIO;
goto err_out;
if (timeout < 1 || timeout > SBC7240_MAX_TIMEOUT) {
timeout = SBC7240_TIMEOUT;
- printk(KERN_INFO SBC7240_PREFIX
- "timeout value must be 1<=x<=%d, using %d\n",
- SBC7240_MAX_TIMEOUT, timeout);
+ pr_info("timeout value must be 1<=x<=%d, using %d\n",
+ SBC7240_MAX_TIMEOUT, timeout);
}
wdt_set_timeout(timeout);
wdt_disable();
rc = register_reboot_notifier(&wdt_notifier);
if (rc) {
- printk(KERN_ERR SBC7240_PREFIX
- "cannot register reboot notifier (err=%d)\n", rc);
+ pr_err("cannot register reboot notifier (err=%d)\n", rc);
goto err_out_region;
}
rc = misc_register(&wdt_miscdev);
if (rc) {
- printk(KERN_ERR SBC7240_PREFIX
- "cannot register miscdev on minor=%d (err=%d)\n",
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
wdt_miscdev.minor, rc);
goto err_out_reboot_notifier;
}
- printk(KERN_INFO SBC7240_PREFIX
- "Watchdog driver for SBC7240 initialised (nowayout=%d)\n",
- nowayout);
+ pr_info("Watchdog driver for SBC7240 initialised (nowayout=%d)\n",
+ nowayout);
return 0;
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/types.h>
#include <linux/miscdevice.h>
static unsigned long sbc8360_is_open;
static char expect_close;
-#define PFX "sbc8360: "
-
/*
*
* Watchdog Timer Configuration
static int timeout = 27;
static int wd_margin = 0xB;
static int wd_multiplier = 2;
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
module_param(timeout, int, 0);
MODULE_PARM_DESC(timeout, "Index into timeout table (0-63) (default=27 (60s))");
-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) ")");
if (expect_close == 42)
sbc8360_stop();
else
- printk(KERN_CRIT PFX "SBC8360 device closed unexpectedly. "
- "SBC8360 will not stop!\n");
+ pr_crit("SBC8360 device closed unexpectedly. SBC8360 will not stop!\n");
clear_bit(0, &sbc8360_is_open);
expect_close = 0;
unsigned long int mseconds = 60000;
if (timeout < 0 || timeout > 63) {
- printk(KERN_ERR PFX "Invalid timeout index (must be 0-63).\n");
+ pr_err("Invalid timeout index (must be 0-63)\n");
res = -EINVAL;
goto out;
}
if (!request_region(SBC8360_ENABLE, 1, "SBC8360")) {
- printk(KERN_ERR PFX "ENABLE method I/O %X is not available.\n",
+ pr_err("ENABLE method I/O %X is not available\n",
SBC8360_ENABLE);
res = -EIO;
goto out;
}
if (!request_region(SBC8360_BASETIME, 1, "SBC8360")) {
- printk(KERN_ERR PFX
- "BASETIME method I/O %X is not available.\n",
+ pr_err("BASETIME method I/O %X is not available\n",
SBC8360_BASETIME);
res = -EIO;
goto out_nobasetimereg;
res = register_reboot_notifier(&sbc8360_notifier);
if (res) {
- printk(KERN_ERR PFX "Failed to register reboot notifier.\n");
+ pr_err("Failed to register reboot notifier\n");
goto out_noreboot;
}
res = misc_register(&sbc8360_miscdev);
if (res) {
- printk(KERN_ERR PFX "failed to register misc device\n");
+ pr_err("failed to register misc device\n");
goto out_nomisc;
}
mseconds = (wd_margin + 1) * 100000;
/* My kingdom for the ability to print "0.5 seconds" in the kernel! */
- printk(KERN_INFO PFX "Timeout set at %ld ms.\n", mseconds);
+ pr_info("Timeout set at %ld ms\n", mseconds);
return 0;
* based on softdog.c by Alan Cox <alan@lxorguk.ukuu.org.uk>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/uaccess.h>
#include <linux/io.h>
-#define PFX "epx_c3: "
static int epx_c3_alive;
#define WATCHDOG_TIMEOUT 1 /* 1 sec default timeout */
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
outb(0, EPXC3_WATCHDOG_CTL_REG);
- printk(KERN_INFO PFX "Stopped watchdog timer.\n");
+ pr_info("Stopped watchdog timer\n");
}
static void epx_c3_pet(void)
epx_c3_pet();
epx_c3_alive = 1;
- printk(KERN_INFO "Started watchdog timer.\n");
+ pr_info("Started watchdog timer\n");
return nonseekable_open(inode, file);
}
.notifier_call = epx_c3_notify_sys,
};
-static const char banner[] __initconst = KERN_INFO PFX
- "Hardware Watchdog Timer for Winsystems EPX-C3 SBC: 0.1\n";
-
static int __init watchdog_init(void)
{
int ret;
ret = register_reboot_notifier(&epx_c3_notifier);
if (ret) {
- printk(KERN_ERR PFX "cannot register reboot notifier "
- "(err=%d)\n", ret);
+ pr_err("cannot register reboot notifier (err=%d)\n", ret);
goto out;
}
ret = misc_register(&epx_c3_miscdev);
if (ret) {
- printk(KERN_ERR PFX "cannot register miscdev on minor=%d "
- "(err=%d)\n", WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
unregister_reboot_notifier(&epx_c3_notifier);
goto out;
}
- printk(banner);
+ pr_info("Hardware Watchdog Timer for Winsystems EPX-C3 SBC: 0.1\n");
return 0;
#include <asm/system.h>
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
static unsigned int margin = 60; /* (secs) Default is 1 minute */
static unsigned long wdt_status;
static DEFINE_MUTEX(wdt_lock);
wdt_disable();
pr_info("Device disabled\n");
} else {
- pr_warning("Device closed unexpectedly -"
- " timer will not stop\n");
+ pr_warn("Device closed unexpectedly - timer will not stop\n");
wdt_enable();
}
}
if (margin < 31 || margin > 255) {
- pr_err("margin must be in range 31 - 255"
- " seconds, you tried to set %d\n", margin);
+ pr_err("margin must be in range 31 - 255 seconds, you tried to set %d\n",
+ margin);
err = -EINVAL;
goto err_margin;
}
err = misc_register(&fitpc2_wdt_miscdev);
if (err) {
pr_err("cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, err);
+ WATCHDOG_MINOR, err);
goto err_margin;
}
module_param(margin, int, 0);
MODULE_PARM_DESC(margin, "Watchdog margin in seconds (default 60s)");
-module_param(nowayout, int, 0);
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
MODULE_LICENSE("GPL");
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/miscdevice.h>
#define SC1200_MODULE_VER "build 20020303"
#define SC1200_MODULE_NAME "sc1200wdt"
-#define PFX SC1200_MODULE_NAME ": "
#define MAX_TIMEOUT 255 /* 255 minutes */
#define PMIR (io) /* Power Management Index Register */
#define UART2_IRQ 0x04 /* Serial1 */
/* 5 -7 are reserved */
-static char banner[] __initdata = PFX SC1200_MODULE_VER;
static int timeout = 1;
static int io = -1;
static int io_len = 2; /* for non plug and play */
module_param(timeout, int, 0);
MODULE_PARM_DESC(timeout, "range is 0-255 minutes, default is 1");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
timeout = MAX_TIMEOUT;
sc1200wdt_start();
- printk(KERN_INFO PFX "Watchdog enabled, timeout = %d min(s)", timeout);
+ pr_info("Watchdog enabled, timeout = %d min(s)", timeout);
return nonseekable_open(inode, file);
}
{
if (expect_close == 42) {
sc1200wdt_stop();
- printk(KERN_INFO PFX "Watchdog disabled\n");
+ pr_info("Watchdog disabled\n");
} else {
sc1200wdt_write_data(WDTO, timeout);
- printk(KERN_CRIT PFX
- "Unexpected close!, timeout = %d min(s)\n", timeout);
+ pr_crit("Unexpected close!, timeout = %d min(s)\n", timeout);
}
clear_bit(0, &open_flag);
expect_close = 0;
io_len = pnp_port_len(wdt_dev, 0);
if (!request_region(io, io_len, SC1200_MODULE_NAME)) {
- printk(KERN_ERR PFX "Unable to register IO port %#x\n", io);
+ pr_err("Unable to register IO port %#x\n", io);
return -EBUSY;
}
- printk(KERN_INFO "scl200wdt: PnP device found at io port %#x/%d\n",
- io, io_len);
+ pr_info("PnP device found at io port %#x/%d\n", io, io_len);
return 0;
}
{
int ret;
- printk(KERN_INFO "%s\n", banner);
+ pr_info("%s\n", SC1200_MODULE_VER);
#if defined CONFIG_PNP
if (isapnp) {
#endif
if (io == -1) {
- printk(KERN_ERR PFX "io parameter must be specified\n");
+ pr_err("io parameter must be specified\n");
ret = -EINVAL;
goto out_pnp;
}
#endif
if (!request_region(io, io_len, SC1200_MODULE_NAME)) {
- printk(KERN_ERR PFX "Unable to register IO port %#x\n", io);
+ pr_err("Unable to register IO port %#x\n", io);
ret = -EBUSY;
goto out_pnp;
}
ret = register_reboot_notifier(&sc1200wdt_notifier);
if (ret) {
- printk(KERN_ERR PFX
- "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(&sc1200wdt_miscdev);
if (ret) {
- printk(KERN_ERR PFX
- "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;
}
* This driver uses memory mapped IO, and spinlock.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <asm/system.h>
-#define OUR_NAME "sc520_wdt"
-#define PFX OUR_NAME ": "
-
/*
* The AMD Elan SC520 timeout value is 492us times a power of 2 (0-7)
*
"Watchdog timeout in seconds. (1 <= timeout <= 3600, default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
/* Re-set the timer interval */
mod_timer(&timer, jiffies + WDT_INTERVAL);
} else
- printk(KERN_WARNING PFX
- "Heartbeat lost! Will not ping the watchdog\n");
+ pr_warn("Heartbeat lost! Will not ping the watchdog\n");
}
/*
/* Start the watchdog */
wdt_config(WDT_ENB | WDT_WRST_ENB | WDT_EXP_SEL_04);
- printk(KERN_INFO PFX "Watchdog timer is now enabled.\n");
+ pr_info("Watchdog timer is now enabled\n");
return 0;
}
/* Stop the watchdog */
wdt_config(0);
- printk(KERN_INFO PFX "Watchdog timer is now disabled...\n");
+ pr_info("Watchdog timer is now disabled...\n");
return 0;
}
if (wdt_expect_close == 42)
wdt_turnoff();
else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
wdt_keepalive();
}
clear_bit(0, &wdt_is_open);
if not reset to the default */
if (wdt_set_heartbeat(timeout)) {
wdt_set_heartbeat(WATCHDOG_TIMEOUT);
- printk(KERN_INFO PFX
- "timeout value must be 1 <= timeout <= 3600, using %d\n",
- WATCHDOG_TIMEOUT);
+ pr_info("timeout value must be 1 <= timeout <= 3600, using %d\n",
+ WATCHDOG_TIMEOUT);
}
wdtmrctl = ioremap(MMCR_BASE + OFFS_WDTMRCTL, 2);
if (!wdtmrctl) {
- printk(KERN_ERR PFX "Unable to remap memory\n");
+ pr_err("Unable to remap memory\n");
rc = -ENOMEM;
goto err_out_region2;
}
rc = register_reboot_notifier(&wdt_notifier);
if (rc) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", rc);
+ pr_err("cannot register reboot notifier (err=%d)\n", rc);
goto err_out_ioremap;
}
rc = misc_register(&wdt_miscdev);
if (rc) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, rc);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, rc);
goto err_out_notifier;
}
- printk(KERN_INFO PFX
- "WDT driver for SC520 initialised. timeout=%d sec (nowayout=%d)\n",
- timeout, nowayout);
+ pr_info("WDT driver for SC520 initialised. timeout=%d sec (nowayout=%d)\n",
+ timeout, nowayout);
return 0;
* Includes, defines, variables, module parameters, ...
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
/* Includes */
#include <linux/module.h> /* For module specific items */
#include <linux/moduleparam.h> /* For new moduleparam's */
/* Module and version information */
#define DRV_NAME "sch311x_wdt"
-#define PFX DRV_NAME ": "
/* Runtime registers */
#define RESGEN 0x1d
"Watchdog timeout in seconds. 1<= timeout <=15300, default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ".");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
if (sch311x_wdt_expect_close == 42) {
sch311x_wdt_stop();
} else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
sch311x_wdt_keepalive();
}
clear_bit(0, &sch311x_wdt_is_open);
/* Check if Logical Device Register is currently active */
if ((sch311x_sio_inb(sio_config_port, 0x30) & 0x01) == 0)
- printk(KERN_INFO PFX "Seems that LDN 0x0a is not active...\n");
+ pr_info("Seems that LDN 0x0a is not active...\n");
/* Get the base address of the runtime registers */
base_addr = (sch311x_sio_inb(sio_config_port, 0x60) << 8) |
sch311x_sio_inb(sio_config_port, 0x61);
if (!base_addr) {
- printk(KERN_ERR PFX "Base address not set.\n");
+ pr_err("Base address not set\n");
err = -ENODEV;
goto exit;
}
*addr = base_addr;
- printk(KERN_INFO PFX "Found an SMSC SCH311%d chip at 0x%04x\n",
- dev_id, base_addr);
+ pr_info("Found an SMSC SCH311%d chip at 0x%04x\n", dev_id, base_addr);
exit:
sch311x_sio_exit(sio_config_port);
of any nature resulting due to the use of this software. This
software is provided AS-IS with no warranties. */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/uaccess.h>
#include <linux/io.h>
-#define NAME "scx200_wdt"
+#define DEBUG
MODULE_AUTHOR("Christer Weinigel <wingel@nano-system.com>");
MODULE_DESCRIPTION("NatSemi SCx200 Watchdog Driver");
module_param(margin, int, 0);
MODULE_PARM_DESC(margin, "Watchdog margin in seconds");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close");
static u16 wdto_restart;
static void scx200_wdt_update_margin(void)
{
- printk(KERN_INFO NAME ": timer margin %d seconds\n", margin);
+ pr_info("timer margin %d seconds\n", margin);
wdto_restart = margin * W_SCALE;
}
static void scx200_wdt_enable(void)
{
- printk(KERN_DEBUG NAME ": enabling watchdog timer, wdto_restart = %d\n",
- wdto_restart);
+ pr_debug("enabling watchdog timer, wdto_restart = %d\n", wdto_restart);
spin_lock(&scx_lock);
outw(0, scx200_cb_base + SCx200_WDT_WDTO);
static void scx200_wdt_disable(void)
{
- printk(KERN_DEBUG NAME ": disabling watchdog timer\n");
+ pr_debug("disabling watchdog timer\n");
spin_lock(&scx_lock);
outw(0, scx200_cb_base + SCx200_WDT_WDTO);
static int scx200_wdt_release(struct inode *inode, struct file *file)
{
if (expect_close != 42)
- printk(KERN_WARNING NAME
- ": watchdog device closed unexpectedly, "
- "will not disable the watchdog timer\n");
+ pr_warn("watchdog device closed unexpectedly, will not disable the watchdog timer\n");
else if (!nowayout)
scx200_wdt_disable();
expect_close = 0;
{
int r;
- printk(KERN_DEBUG NAME ": NatSemi SCx200 Watchdog Driver\n");
+ pr_debug("NatSemi SCx200 Watchdog Driver\n");
/* check that we have found the configuration block */
if (!scx200_cb_present())
if (!request_region(scx200_cb_base + SCx200_WDT_OFFSET,
SCx200_WDT_SIZE,
"NatSemi SCx200 Watchdog")) {
- printk(KERN_WARNING NAME ": watchdog I/O region busy\n");
+ pr_warn("watchdog I/O region busy\n");
return -EBUSY;
}
r = register_reboot_notifier(&scx200_wdt_notifier);
if (r) {
- printk(KERN_ERR NAME ": unable to register reboot notifier");
+ pr_err("unable to register reboot notifier\n");
release_region(scx200_cb_base + SCx200_WDT_OFFSET,
SCx200_WDT_SIZE);
return r;
* Added expect close support, made emulated timeout runtime changeable
* general cleanups, add some ioctls
*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/platform_device.h>
#define WATCHDOG_HEARTBEAT 30 /* 30 sec default heartbeat */
static int heartbeat = WATCHDOG_HEARTBEAT; /* in seconds */
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
static unsigned long next_heartbeat;
struct sh_wdt {
clock_division_ratio > 0x7)) {
clock_division_ratio = WTCSR_CKS_4096;
- pr_info("%s: divisor must be 0x5<=x<=0x7, using %d\n",
- DRV_NAME, clock_division_ratio);
+ pr_info("divisor must be 0x5<=x<=0x7, using %d\n",
+ clock_division_ratio);
}
rc = sh_wdt_set_heartbeat(heartbeat);
if (unlikely(rc)) {
heartbeat = WATCHDOG_HEARTBEAT;
- pr_info("%s: heartbeat value must be 1<=x<=3600, using %d\n",
- DRV_NAME, heartbeat);
+ pr_info("heartbeat value must be 1<=x<=3600, using %d\n",
+ heartbeat);
}
- pr_info("%s: configured with heartbeat=%d sec (nowayout=%d)\n",
- DRV_NAME, heartbeat, nowayout);
+ pr_info("configured with heartbeat=%d sec (nowayout=%d)\n",
+ heartbeat, nowayout);
return platform_driver_register(&sh_wdt_driver);
}
"Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default="
__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
-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) ")");
* Documentation/watchdog/wdt.txt
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#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) ")");
/*
- * SoftDog 0.07: A Software Watchdog Device
+ * SoftDog: A Software Watchdog Device
*
* (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
* All Rights Reserved.
* Added Matt Domsch's nowayout module option.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/timer.h>
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
-#include <linux/fs.h>
#include <linux/notifier.h>
#include <linux/reboot.h>
#include <linux/init.h>
#include <linux/jiffies.h>
-#include <linux/uaccess.h>
#include <linux/kernel.h>
-#define PFX "SoftDog: "
-
#define TIMER_MARGIN 60 /* Default is 60 seconds */
-static int soft_margin = TIMER_MARGIN; /* in seconds */
-module_param(soft_margin, int, 0);
+static unsigned int soft_margin = TIMER_MARGIN; /* in seconds */
+module_param(soft_margin, uint, 0);
MODULE_PARM_DESC(soft_margin,
"Watchdog soft_margin in seconds. (0 < soft_margin < 65536, default="
__MODULE_STRING(TIMER_MARGIN) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-#ifdef ONLY_TESTING
-static int soft_noboot = 1;
-#else
static int soft_noboot = 0;
-#endif /* ONLY_TESTING */
-
module_param(soft_noboot, int, 0);
MODULE_PARM_DESC(soft_noboot,
- "Softdog action, set to 1 to ignore reboots, 0 to reboot "
- "(default depends on ONLY_TESTING)");
+ "Softdog action, set to 1 to ignore reboots, 0 to reboot (default=0)");
static int soft_panic;
module_param(soft_panic, int, 0);
static struct timer_list watchdog_ticktock =
TIMER_INITIALIZER(watchdog_fire, 0, 0);
-static unsigned long driver_open, orphan_timer;
-static char expect_close;
-
/*
* If the timer expires..
static void watchdog_fire(unsigned long data)
{
- if (test_and_clear_bit(0, &orphan_timer))
- module_put(THIS_MODULE);
-
if (soft_noboot)
- printk(KERN_CRIT PFX "Triggered - Reboot ignored.\n");
+ pr_crit("Triggered - Reboot ignored\n");
else if (soft_panic) {
- printk(KERN_CRIT PFX "Initiating panic.\n");
- panic("Software Watchdog Timer expired.");
+ pr_crit("Initiating panic\n");
+ panic("Software Watchdog Timer expired");
} else {
- printk(KERN_CRIT PFX "Initiating system reboot.\n");
+ pr_crit("Initiating system reboot\n");
emergency_restart();
- printk(KERN_CRIT PFX "Reboot didn't ?????\n");
+ pr_crit("Reboot didn't ?????\n");
}
}
* Softdog operations
*/
-static int softdog_keepalive(void)
+static int softdog_ping(struct watchdog_device *w)
{
- mod_timer(&watchdog_ticktock, jiffies+(soft_margin*HZ));
+ mod_timer(&watchdog_ticktock, jiffies+(w->timeout*HZ));
return 0;
}
-static int softdog_stop(void)
+static int softdog_stop(struct watchdog_device *w)
{
del_timer(&watchdog_ticktock);
return 0;
}
-static int softdog_set_heartbeat(int t)
-{
- if ((t < 0x0001) || (t > 0xFFFF))
- return -EINVAL;
-
- soft_margin = t;
- return 0;
-}
-
-/*
- * /dev/watchdog handling
- */
-
-static int softdog_open(struct inode *inode, struct file *file)
-{
- if (test_and_set_bit(0, &driver_open))
- return -EBUSY;
- if (!test_and_clear_bit(0, &orphan_timer))
- __module_get(THIS_MODULE);
- /*
- * Activate timer
- */
- softdog_keepalive();
- return nonseekable_open(inode, file);
-}
-
-static int softdog_release(struct inode *inode, struct file *file)
+static int softdog_set_timeout(struct watchdog_device *w, unsigned int t)
{
- /*
- * Shut off the timer.
- * Lock it in if it's a module and we set nowayout
- */
- if (expect_close == 42) {
- softdog_stop();
- module_put(THIS_MODULE);
- } else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
- set_bit(0, &orphan_timer);
- softdog_keepalive();
- }
- clear_bit(0, &driver_open);
- expect_close = 0;
+ w->timeout = t;
return 0;
}
-static ssize_t softdog_write(struct file *file, const char __user *data,
- size_t len, loff_t *ppos)
-{
- /*
- * Refresh the timer.
- */
- if (len) {
- if (!nowayout) {
- size_t i;
-
- /* In case it was set long ago */
- expect_close = 0;
-
- for (i = 0; i != len; i++) {
- char c;
-
- if (get_user(c, data + i))
- return -EFAULT;
- if (c == 'V')
- expect_close = 42;
- }
- }
- softdog_keepalive();
- }
- return len;
-}
-
-static long softdog_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- void __user *argp = (void __user *)arg;
- int __user *p = argp;
- int new_margin;
- static const struct watchdog_info ident = {
- .options = WDIOF_SETTIMEOUT |
- WDIOF_KEEPALIVEPING |
- WDIOF_MAGICCLOSE,
- .firmware_version = 0,
- .identity = "Software Watchdog",
- };
- switch (cmd) {
- case WDIOC_GETSUPPORT:
- return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
- case WDIOC_GETSTATUS:
- case WDIOC_GETBOOTSTATUS:
- return put_user(0, p);
- case WDIOC_KEEPALIVE:
- softdog_keepalive();
- return 0;
- case WDIOC_SETTIMEOUT:
- if (get_user(new_margin, p))
- return -EFAULT;
- if (softdog_set_heartbeat(new_margin))
- return -EINVAL;
- softdog_keepalive();
- /* Fall */
- case WDIOC_GETTIMEOUT:
- return put_user(soft_margin, p);
- default:
- return -ENOTTY;
- }
-}
-
/*
* Notifier for system down
*/
{
if (code == SYS_DOWN || code == SYS_HALT)
/* Turn the WDT off */
- softdog_stop();
+ softdog_stop(NULL);
return NOTIFY_DONE;
}
* Kernel Interfaces
*/
-static const struct file_operations softdog_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = softdog_write,
- .unlocked_ioctl = softdog_ioctl,
- .open = softdog_open,
- .release = softdog_release,
+static struct notifier_block softdog_notifier = {
+ .notifier_call = softdog_notify_sys,
};
-static struct miscdevice softdog_miscdev = {
- .minor = WATCHDOG_MINOR,
- .name = "watchdog",
- .fops = &softdog_fops,
+static struct watchdog_info softdog_info = {
+ .identity = "Software Watchdog",
+ .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
};
-static struct notifier_block softdog_notifier = {
- .notifier_call = softdog_notify_sys,
+static struct watchdog_ops softdog_ops = {
+ .owner = THIS_MODULE,
+ .start = softdog_ping,
+ .stop = softdog_stop,
+ .ping = softdog_ping,
+ .set_timeout = softdog_set_timeout,
};
-static char banner[] __initdata = KERN_INFO "Software Watchdog Timer: 0.07 "
- "initialized. soft_noboot=%d soft_margin=%d sec soft_panic=%d "
- "(nowayout= %d)\n";
+static struct watchdog_device softdog_dev = {
+ .info = &softdog_info,
+ .ops = &softdog_ops,
+ .min_timeout = 1,
+ .max_timeout = 0xFFFF
+};
static int __init watchdog_init(void)
{
/* Check that the soft_margin value is within it's range;
if not reset to the default */
- if (softdog_set_heartbeat(soft_margin)) {
- softdog_set_heartbeat(TIMER_MARGIN);
- printk(KERN_INFO PFX
- "soft_margin must be 0 < soft_margin < 65536, using %d\n",
+ if (soft_margin < 1 || soft_margin > 65535) {
+ pr_info("soft_margin must be 0 < soft_margin < 65536, using %d\n",
TIMER_MARGIN);
+ return -EINVAL;
}
+ softdog_dev.timeout = soft_margin;
+
+ watchdog_set_nowayout(&softdog_dev, nowayout);
ret = register_reboot_notifier(&softdog_notifier);
if (ret) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", ret);
+ pr_err("cannot register reboot notifier (err=%d)\n", ret);
return ret;
}
- ret = misc_register(&softdog_miscdev);
+ ret = watchdog_register_device(&softdog_dev);
if (ret) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
unregister_reboot_notifier(&softdog_notifier);
return ret;
}
- printk(banner, soft_noboot, soft_margin, soft_panic, nowayout);
+ pr_info("Software Watchdog Timer: 0.08 initialized. soft_noboot=%d soft_margin=%d sec soft_panic=%d (nowayout=%d)\n",
+ soft_noboot, soft_margin, soft_panic, nowayout);
return 0;
}
static void __exit watchdog_exit(void)
{
- misc_deregister(&softdog_miscdev);
+ watchdog_unregister_device(&softdog_dev);
unregister_reboot_notifier(&softdog_notifier);
}
* Includes, defines, variables, module parameters, ...
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#define TCO_VERSION "0.01"
#define TCO_MODULE_NAME "SP5100 TCO timer"
#define TCO_DRIVER_NAME TCO_MODULE_NAME ", v" TCO_VERSION
-#define PFX TCO_MODULE_NAME ": "
/* internal variables */
static u32 tcobase_phys;
MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (default="
__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"
" (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
if (tco_expect_close == 42) {
tco_timer_stop();
} else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
tco_timer_keepalive();
}
clear_bit(0, &timer_alive);
/* Request the IO ports used by this driver */
pm_iobase = SP5100_IO_PM_INDEX_REG;
if (!request_region(pm_iobase, SP5100_PM_IOPORTS_SIZE, "SP5100 TCO")) {
- printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
- pm_iobase);
+ pr_err("I/O address 0x%04x already in use\n", pm_iobase);
goto exit;
}
if (!request_mem_region_exclusive(val, SP5100_WDT_MEM_MAP_SIZE,
"SP5100 TCO")) {
- printk(KERN_ERR PFX "mmio address 0x%04x already in use\n",
- val);
+ pr_err("mmio address 0x%04x already in use\n", val);
goto unreg_region;
}
tcobase_phys = val;
tcobase = ioremap(val, SP5100_WDT_MEM_MAP_SIZE);
if (tcobase == 0) {
- printk(KERN_ERR PFX "failed to get tcobase address\n");
+ pr_err("failed to get tcobase address\n");
goto unreg_mem_region;
}
return -ENODEV;
/* Check to see if last reboot was due to watchdog timeout */
- printk(KERN_INFO PFX "Watchdog reboot %sdetected.\n",
- readl(SP5100_WDT_CONTROL(tcobase)) & SP5100_PM_WATCHDOG_FIRED ?
- "" : "not ");
+ pr_info("Watchdog reboot %sdetected\n",
+ readl(SP5100_WDT_CONTROL(tcobase)) & SP5100_PM_WATCHDOG_FIRED ?
+ "" : "not ");
/* Clear out the old status */
val = readl(SP5100_WDT_CONTROL(tcobase));
ret = misc_register(&sp5100_tco_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX "cannot register miscdev on minor="
- "%d (err=%d)\n",
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
WATCHDOG_MINOR, ret);
goto exit;
}
clear_bit(0, &timer_alive);
- printk(KERN_INFO PFX "initialized (0x%p). heartbeat=%d sec"
- " (nowayout=%d)\n",
+ pr_info("initialized (0x%p). heartbeat=%d sec (nowayout=%d)\n",
tcobase, heartbeat, nowayout);
return 0;
{
int err;
- printk(KERN_INFO PFX "SP5100 TCO WatchDog Timer Driver v%s\n",
- TCO_VERSION);
+ pr_info("SP5100 TCO WatchDog Timer Driver v%s\n", TCO_VERSION);
err = platform_driver_register(&sp5100_tco_driver);
if (err)
{
platform_device_unregister(sp5100_tco_platform_device);
platform_driver_unregister(&sp5100_tco_driver);
- printk(KERN_INFO PFX "SP5100 TCO Watchdog Module Unloaded.\n");
+ pr_info("SP5100 TCO Watchdog Module Unloaded\n");
}
module_init(sp5100_tco_init_module);
#include <linux/miscdevice.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
+#include <linux/pm.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/types.h>
/**
* struct sp805_wdt: sp805 wdt device structure
- *
- * lock: spin lock protecting dev structure and io access
- * base: base address of wdt
- * clk: clock structure of wdt
- * dev: amba device structure of wdt
- * status: current status of wdt
- * load_val: load value to be set for current timeout
- * timeout: current programmed timeout
+ * @lock: spin lock protecting dev structure and io access
+ * @base: base address of wdt
+ * @clk: clock structure of wdt
+ * @adev: amba device structure of wdt
+ * @status: current status of wdt
+ * @load_val: load value to be set for current timeout
+ * @timeout: current programmed timeout
*/
struct sp805_wdt {
spinlock_t lock;
/* local variables */
static struct sp805_wdt *wdt;
-static int nowayout = WATCHDOG_NOWAYOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
/* This routine finds load value that will reset system in required timout */
static void wdt_setload(unsigned int timeout)
rate = clk_get_rate(wdt->clk);
spin_lock(&wdt->lock);
- load = readl(wdt->base + WDTVALUE);
+ load = readl_relaxed(wdt->base + WDTVALUE);
/*If the interrupt is inactive then time left is WDTValue + WDTLoad. */
- if (!(readl(wdt->base + WDTRIS) & INT_MASK))
+ if (!(readl_relaxed(wdt->base + WDTRIS) & INT_MASK))
load += wdt->load_val + 1;
spin_unlock(&wdt->lock);
{
spin_lock(&wdt->lock);
- writel(UNLOCK, wdt->base + WDTLOCK);
- writel(wdt->load_val, wdt->base + WDTLOAD);
- writel(INT_MASK, wdt->base + WDTINTCLR);
- writel(INT_ENABLE | RESET_ENABLE, wdt->base + WDTCONTROL);
- writel(LOCK, wdt->base + WDTLOCK);
+ writel_relaxed(UNLOCK, wdt->base + WDTLOCK);
+ writel_relaxed(wdt->load_val, wdt->base + WDTLOAD);
+ writel_relaxed(INT_MASK, wdt->base + WDTINTCLR);
+ writel_relaxed(INT_ENABLE | RESET_ENABLE, wdt->base + WDTCONTROL);
+ writel_relaxed(LOCK, wdt->base + WDTLOCK);
/* Flush posted writes. */
- readl(wdt->base + WDTLOCK);
+ readl_relaxed(wdt->base + WDTLOCK);
spin_unlock(&wdt->lock);
}
{
spin_lock(&wdt->lock);
- writel(UNLOCK, wdt->base + WDTLOCK);
- writel(0, wdt->base + WDTCONTROL);
- writel(LOCK, wdt->base + WDTLOCK);
+ writel_relaxed(UNLOCK, wdt->base + WDTLOCK);
+ writel_relaxed(0, wdt->base + WDTCONTROL);
+ writel_relaxed(LOCK, wdt->base + WDTLOCK);
/* Flush posted writes. */
- readl(wdt->base + WDTLOCK);
+ readl_relaxed(wdt->base + WDTLOCK);
spin_unlock(&wdt->lock);
}
{
int ret = 0;
- if (!request_mem_region(adev->res.start, resource_size(&adev->res),
- "sp805_wdt")) {
+ if (!devm_request_mem_region(&adev->dev, adev->res.start,
+ resource_size(&adev->res), "sp805_wdt")) {
dev_warn(&adev->dev, "Failed to get memory region resource\n");
ret = -ENOENT;
goto err;
}
- wdt = kzalloc(sizeof(*wdt), GFP_KERNEL);
+ wdt = devm_kzalloc(&adev->dev, sizeof(*wdt), GFP_KERNEL);
if (!wdt) {
dev_warn(&adev->dev, "Kzalloc failed\n");
ret = -ENOMEM;
- goto err_kzalloc;
+ goto err;
+ }
+
+ wdt->base = devm_ioremap(&adev->dev, adev->res.start,
+ resource_size(&adev->res));
+ if (!wdt->base) {
+ ret = -ENOMEM;
+ dev_warn(&adev->dev, "ioremap fail\n");
+ goto err;
}
wdt->clk = clk_get(&adev->dev, NULL);
if (IS_ERR(wdt->clk)) {
dev_warn(&adev->dev, "Clock not found\n");
ret = PTR_ERR(wdt->clk);
- goto err_clk_get;
- }
-
- wdt->base = ioremap(adev->res.start, resource_size(&adev->res));
- if (!wdt->base) {
- ret = -ENOMEM;
- dev_warn(&adev->dev, "ioremap fail\n");
- goto err_ioremap;
+ goto err;
}
wdt->adev = adev;
return 0;
err_misc_register:
- iounmap(wdt->base);
-err_ioremap:
clk_put(wdt->clk);
-err_clk_get:
- kfree(wdt);
- wdt = NULL;
-err_kzalloc:
- release_mem_region(adev->res.start, resource_size(&adev->res));
err:
dev_err(&adev->dev, "Probe Failed!!!\n");
return ret;
static int __devexit sp805_wdt_remove(struct amba_device *adev)
{
misc_deregister(&sp805_wdt_miscdev);
- iounmap(wdt->base);
clk_put(wdt->clk);
- kfree(wdt);
- release_mem_region(adev->res.start, resource_size(&adev->res));
return 0;
}
+#ifdef CONFIG_PM
+static int sp805_wdt_suspend(struct device *dev)
+{
+ if (test_bit(WDT_BUSY, &wdt->status)) {
+ wdt_disable();
+ clk_disable(wdt->clk);
+ }
+
+ return 0;
+}
+
+static int sp805_wdt_resume(struct device *dev)
+{
+ int ret = 0;
+
+ if (test_bit(WDT_BUSY, &wdt->status)) {
+ ret = clk_enable(wdt->clk);
+ if (ret) {
+ dev_err(dev, "clock enable fail");
+ return ret;
+ }
+ wdt_enable();
+ }
+
+ return ret;
+}
+#endif /* CONFIG_PM */
+
+static SIMPLE_DEV_PM_OPS(sp805_wdt_dev_pm_ops, sp805_wdt_suspend,
+ sp805_wdt_resume);
+
static struct amba_id sp805_wdt_ids[] = {
{
.id = 0x00141805,
static struct amba_driver sp805_wdt_driver = {
.drv = {
.name = MODULE_NAME,
+ .pm = &sp805_wdt_dev_pm_ops,
},
.id_table = sp805_wdt_ids,
.probe = sp805_wdt_probe,
module_amba_driver(sp805_wdt_driver);
-module_param(nowayout, int, 0);
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Set to 1 to keep watchdog running after device release");
* Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/fs.h>
static DEFINE_SPINLOCK(stmp3xxx_wdt_io_lock);
static unsigned long wdt_status;
-static const int nowayout = WATCHDOG_NOWAYOUT;
+static const bool nowayout = WATCHDOG_NOWAYOUT;
static int heartbeat = DEFAULT_HEARTBEAT;
static unsigned long boot_status;
return ret;
}
- printk(KERN_INFO "stmp3xxx watchdog: initialized, heartbeat %d sec\n",
- heartbeat);
+ pr_info("initialized, heartbeat %d sec\n", heartbeat);
return ret;
}
__MODULE_STRING(TS72XX_WDT_DEFAULT_TIMEOUT)
")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close");
/**
unsigned long state;
};
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
"(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
-#include <linux/fs.h>
#include <linux/init.h>
-#include <linux/uaccess.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
#include <asm/txx9tmr.h>
+#define WD_TIMER_CCD 7 /* 1/256 */
+#define WD_TIMER_CLK (clk_get_rate(txx9_imclk) / (2 << WD_TIMER_CCD))
+#define WD_MAX_TIMEOUT ((0xffffffff >> (32 - TXX9_TIMER_BITS)) / WD_TIMER_CLK)
#define TIMER_MARGIN 60 /* Default is 60 seconds */
-static int timeout = TIMER_MARGIN; /* in seconds */
-module_param(timeout, int, 0);
+static unsigned int timeout = TIMER_MARGIN; /* in seconds */
+module_param(timeout, uint, 0);
MODULE_PARM_DESC(timeout,
"Watchdog timeout in seconds. "
"(0<timeout<((2^" __MODULE_STRING(TXX9_TIMER_BITS) ")/(IMCLK/256)), "
"default=" __MODULE_STRING(TIMER_MARGIN) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started "
"(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-#define WD_TIMER_CCD 7 /* 1/256 */
-#define WD_TIMER_CLK (clk_get_rate(txx9_imclk) / (2 << WD_TIMER_CCD))
-#define WD_MAX_TIMEOUT ((0xffffffff >> (32 - TXX9_TIMER_BITS)) / WD_TIMER_CLK)
-
-static unsigned long txx9wdt_alive;
-static int expect_close;
static struct txx9_tmr_reg __iomem *txx9wdt_reg;
static struct clk *txx9_imclk;
static DEFINE_SPINLOCK(txx9_lock);
-static void txx9wdt_ping(void)
+static int txx9wdt_ping(struct watchdog_device *wdt_dev)
{
spin_lock(&txx9_lock);
__raw_writel(TXx9_TMWTMR_TWIE | TXx9_TMWTMR_TWC, &txx9wdt_reg->wtmr);
spin_unlock(&txx9_lock);
+ return 0;
}
-static void txx9wdt_start(void)
+static int txx9wdt_start(struct watchdog_device *wdt_dev)
{
spin_lock(&txx9_lock);
- __raw_writel(WD_TIMER_CLK * timeout, &txx9wdt_reg->cpra);
+ __raw_writel(WD_TIMER_CLK * wdt_dev->timeout, &txx9wdt_reg->cpra);
__raw_writel(WD_TIMER_CCD, &txx9wdt_reg->ccdr);
__raw_writel(0, &txx9wdt_reg->tisr); /* clear pending interrupt */
__raw_writel(TXx9_TMTCR_TCE | TXx9_TMTCR_CCDE | TXx9_TMTCR_TMODE_WDOG,
&txx9wdt_reg->tcr);
__raw_writel(TXx9_TMWTMR_TWIE | TXx9_TMWTMR_TWC, &txx9wdt_reg->wtmr);
spin_unlock(&txx9_lock);
+ return 0;
}
-static void txx9wdt_stop(void)
+static int txx9wdt_stop(struct watchdog_device *wdt_dev)
{
spin_lock(&txx9_lock);
__raw_writel(TXx9_TMWTMR_WDIS, &txx9wdt_reg->wtmr);
__raw_writel(__raw_readl(&txx9wdt_reg->tcr) & ~TXx9_TMTCR_TCE,
&txx9wdt_reg->tcr);
spin_unlock(&txx9_lock);
-}
-
-static int txx9wdt_open(struct inode *inode, struct file *file)
-{
- if (test_and_set_bit(0, &txx9wdt_alive))
- return -EBUSY;
-
- if (__raw_readl(&txx9wdt_reg->tcr) & TXx9_TMTCR_TCE) {
- clear_bit(0, &txx9wdt_alive);
- return -EBUSY;
- }
-
- if (nowayout)
- __module_get(THIS_MODULE);
-
- txx9wdt_start();
- return nonseekable_open(inode, file);
-}
-
-static int txx9wdt_release(struct inode *inode, struct file *file)
-{
- if (expect_close)
- txx9wdt_stop();
- else {
- printk(KERN_CRIT "txx9wdt: "
- "Unexpected close, not stopping watchdog!\n");
- txx9wdt_ping();
- }
- clear_bit(0, &txx9wdt_alive);
- expect_close = 0;
return 0;
}
-static ssize_t txx9wdt_write(struct file *file, const char __user *data,
- size_t len, loff_t *ppos)
+static int txx9wdt_set_timeout(struct watchdog_device *wdt_dev,
+ unsigned int new_timeout)
{
- if (len) {
- if (!nowayout) {
- size_t i;
-
- expect_close = 0;
- for (i = 0; i != len; i++) {
- char c;
- if (get_user(c, data + i))
- return -EFAULT;
- if (c == 'V')
- expect_close = 1;
- }
- }
- txx9wdt_ping();
- }
- return len;
+ wdt_dev->timeout = new_timeout;
+ txx9wdt_stop(wdt_dev);
+ txx9wdt_start(wdt_dev);
+ return 0;
}
-static long txx9wdt_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- void __user *argp = (void __user *)arg;
- int __user *p = argp;
- int new_timeout;
- static const struct watchdog_info ident = {
- .options = WDIOF_SETTIMEOUT |
- WDIOF_KEEPALIVEPING |
- WDIOF_MAGICCLOSE,
- .firmware_version = 0,
- .identity = "Hardware Watchdog for TXx9",
- };
-
- switch (cmd) {
- case WDIOC_GETSUPPORT:
- return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
- case WDIOC_GETSTATUS:
- case WDIOC_GETBOOTSTATUS:
- return put_user(0, p);
- case WDIOC_KEEPALIVE:
- txx9wdt_ping();
- return 0;
- case WDIOC_SETTIMEOUT:
- if (get_user(new_timeout, p))
- return -EFAULT;
- if (new_timeout < 1 || new_timeout > WD_MAX_TIMEOUT)
- return -EINVAL;
- timeout = new_timeout;
- txx9wdt_stop();
- txx9wdt_start();
- /* Fall */
- case WDIOC_GETTIMEOUT:
- return put_user(timeout, p);
- default:
- return -ENOTTY;
- }
-}
+static const struct watchdog_info txx9wdt_info = {
+ .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
+ .identity = "Hardware Watchdog for TXx9",
+};
-static const struct file_operations txx9wdt_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = txx9wdt_write,
- .unlocked_ioctl = txx9wdt_ioctl,
- .open = txx9wdt_open,
- .release = txx9wdt_release,
+static const struct watchdog_ops txx9wdt_ops = {
+ .owner = THIS_MODULE,
+ .start = txx9wdt_start,
+ .stop = txx9wdt_stop,
+ .ping = txx9wdt_ping,
+ .set_timeout = txx9wdt_set_timeout,
};
-static struct miscdevice txx9wdt_miscdev = {
- .minor = WATCHDOG_MINOR,
- .name = "watchdog",
- .fops = &txx9wdt_fops,
+static struct watchdog_device txx9wdt = {
+ .info = &txx9wdt_info,
+ .ops = &txx9wdt_ops,
};
static int __init txx9wdt_probe(struct platform_device *dev)
}
res = platform_get_resource(dev, IORESOURCE_MEM, 0);
- if (!res)
- goto exit_busy;
- if (!devm_request_mem_region(&dev->dev, res->start, resource_size(res),
- "txx9wdt"))
- goto exit_busy;
- txx9wdt_reg = devm_ioremap(&dev->dev, res->start, resource_size(res));
- if (!txx9wdt_reg)
- goto exit_busy;
-
- ret = misc_register(&txx9wdt_miscdev);
- if (ret) {
+ txx9wdt_reg = devm_request_and_ioremap(&dev->dev, res);
+ if (!txx9wdt_reg) {
+ ret = -EBUSY;
goto exit;
}
- printk(KERN_INFO "Hardware Watchdog Timer for TXx9: "
- "timeout=%d sec (max %ld) (nowayout= %d)\n",
- timeout, WD_MAX_TIMEOUT, nowayout);
+ if (timeout < 1 || timeout > WD_MAX_TIMEOUT)
+ timeout = TIMER_MARGIN;
+ txx9wdt.timeout = timeout;
+ txx9wdt.min_timeout = 1;
+ txx9wdt.max_timeout = WD_MAX_TIMEOUT;
+ watchdog_set_nowayout(&txx9wdt, nowayout);
+
+ ret = watchdog_register_device(&txx9wdt);
+ if (ret)
+ goto exit;
+
+ pr_info("Hardware Watchdog Timer: timeout=%d sec (max %ld) (nowayout= %d)\n",
+ timeout, WD_MAX_TIMEOUT, nowayout);
return 0;
-exit_busy:
- ret = -EBUSY;
exit:
if (txx9_imclk) {
clk_disable(txx9_imclk);
static int __exit txx9wdt_remove(struct platform_device *dev)
{
- misc_deregister(&txx9wdt_miscdev);
+ watchdog_unregister_device(&txx9wdt);
clk_disable(txx9_imclk);
clk_put(txx9_imclk);
return 0;
static void txx9wdt_shutdown(struct platform_device *dev)
{
- txx9wdt_stop();
+ txx9wdt_stop(&txx9wdt);
}
static struct platform_driver txx9wdt_driver = {
* Caveat: PnP must be enabled in BIOS to allow full access to watchdog
* control registers. If not, the watchdog must be configured in BIOS manually.
*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/device.h>
#include <linux/io.h>
#include <linux/jiffies.h>
MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds, between 1 and 1023 "
"(default = " __MODULE_STRING(WDT_TIMEOUT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
"(default = " __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
static int wdt_ping(struct watchdog_device *wdd)
{
/* calculate when the next userspace timeout will be */
- next_heartbeat = jiffies + timeout * HZ;
+ next_heartbeat = jiffies + wdd->timeout * HZ;
return 0;
}
{
unsigned int ctl = readl(wdt_mem);
- writel(timeout, wdt_mem + VIA_WDT_COUNT);
+ writel(wdd->timeout, wdt_mem + VIA_WDT_COUNT);
writel(ctl | VIA_WDT_RUNNING | VIA_WDT_TRIGGER, wdt_mem);
wdt_ping(wdd);
mod_timer(&timer, jiffies + WDT_HEARTBEAT);
unsigned int new_timeout)
{
writel(new_timeout, wdt_mem + VIA_WDT_COUNT);
- timeout = new_timeout;
+ wdd->timeout = new_timeout;
return 0;
}
* (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <asm/system.h>
#define WATCHDOG_NAME "w83627hf/thf/hg/dhg WDT"
-#define PFX WATCHDOG_NAME ": "
#define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */
static unsigned long wdt_is_open;
"Watchdog timeout in seconds. 1 <= timeout <= 255, default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ".");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
outb_p(0xF6, WDT_EFER); /* Select CRF6 */
t = inb_p(WDT_EFDR); /* read CRF6 */
if (t != 0) {
- printk(KERN_INFO PFX
- "Watchdog already running. Resetting timeout to %d sec\n",
- timeout);
+ pr_info("Watchdog already running. Resetting timeout to %d sec\n",
+ timeout);
outb_p(timeout, WDT_EFDR); /* Write back to CRF6 */
}
if (expect_close == 42)
wdt_disable();
else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
wdt_ping();
}
expect_close = 0;
{
int ret;
- printk(KERN_INFO "WDT driver for the Winbond(TM) W83627HF/THF/HG/DHG Super I/O chip initialising.\n");
+ pr_info("WDT driver for the Winbond(TM) W83627HF/THF/HG/DHG Super I/O chip initialising\n");
if (wdt_set_heartbeat(timeout)) {
wdt_set_heartbeat(WATCHDOG_TIMEOUT);
- printk(KERN_INFO PFX
- "timeout value must be 1 <= timeout <= 255, using %d\n",
- WATCHDOG_TIMEOUT);
+ pr_info("timeout value must be 1 <= timeout <= 255, using %d\n",
+ WATCHDOG_TIMEOUT);
}
if (!request_region(wdt_io, 1, WATCHDOG_NAME)) {
- printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
- wdt_io);
+ pr_err("I/O address 0x%04x already in use\n", wdt_io);
ret = -EIO;
goto out;
}
ret = register_reboot_notifier(&wdt_notifier);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", ret);
+ pr_err("cannot register reboot notifier (err=%d)\n", ret);
goto unreg_regions;
}
ret = misc_register(&wdt_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto unreg_reboot;
}
- printk(KERN_INFO PFX
- "initialized. timeout=%d sec (nowayout=%d)\n",
- timeout, nowayout);
+ pr_info("initialized. timeout=%d sec (nowayout=%d)\n",
+ timeout, nowayout);
out:
return ret;
* "AS-IS" and at no charge.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <asm/system.h>
#define WATCHDOG_NAME "w83697hf/hg WDT"
-#define PFX WATCHDOG_NAME ": "
#define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */
#define WATCHDOG_EARLY_DISABLE 1 /* Disable until userland kicks in */
"Watchdog timeout in seconds. 1<= timeout <=255 (default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
if (expect_close == 42)
wdt_disable();
else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
wdt_ping();
}
expect_close = 0;
static int w83697hf_check_wdt(void)
{
if (!request_region(wdt_io, 2, WATCHDOG_NAME)) {
- printk(KERN_ERR PFX
- "I/O address 0x%x already in use\n", wdt_io);
+ pr_err("I/O address 0x%x already in use\n", wdt_io);
return -EIO;
}
- printk(KERN_DEBUG PFX
- "Looking for watchdog at address 0x%x\n", wdt_io);
+ pr_debug("Looking for watchdog at address 0x%x\n", wdt_io);
w83697hf_unlock();
if (w83697hf_get_reg(0x20) == 0x60) {
- printk(KERN_INFO PFX
- "watchdog found at address 0x%x\n", wdt_io);
+ pr_info("watchdog found at address 0x%x\n", wdt_io);
w83697hf_lock();
return 0;
}
/* Reprotect in case it was a compatible device */
w83697hf_lock();
- printk(KERN_INFO PFX "watchdog not found at address 0x%x\n", wdt_io);
+ pr_info("watchdog not found at address 0x%x\n", wdt_io);
release_region(wdt_io, 2);
return -EIO;
}
{
int ret, i, found = 0;
- printk(KERN_INFO PFX "WDT driver for W83697HF/HG initializing\n");
+ pr_info("WDT driver for W83697HF/HG initializing\n");
if (wdt_io == 0) {
/* we will autodetect the W83697HF/HG watchdog */
}
if (!found) {
- printk(KERN_ERR PFX "No W83697HF/HG could be found\n");
+ pr_err("No W83697HF/HG could be found\n");
ret = -EIO;
goto out;
}
w83697hf_init();
if (early_disable) {
if (wdt_running())
- printk(KERN_WARNING PFX "Stopping previously enabled "
- "watchdog until userland kicks in\n");
+ pr_warn("Stopping previously enabled watchdog until userland kicks in\n");
wdt_disable();
}
if (wdt_set_heartbeat(timeout)) {
wdt_set_heartbeat(WATCHDOG_TIMEOUT);
- printk(KERN_INFO PFX
- "timeout value must be 1 <= timeout <= 255, using %d\n",
- WATCHDOG_TIMEOUT);
+ pr_info("timeout value must be 1 <= timeout <= 255, using %d\n",
+ WATCHDOG_TIMEOUT);
}
ret = register_reboot_notifier(&wdt_notifier);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", ret);
+ pr_err("cannot register reboot notifier (err=%d)\n", ret);
goto unreg_regions;
}
ret = misc_register(&wdt_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto unreg_reboot;
}
- printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n",
+ pr_info("initialized. timeout=%d sec (nowayout=%d)\n",
timeout, nowayout);
out:
* (c) Copyright 1995 Alan Cox <alan@redhat.com>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <asm/system.h>
#define WATCHDOG_NAME "w83697ug/uf WDT"
-#define PFX WATCHDOG_NAME ": "
#define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */
static unsigned long wdt_is_open;
"Watchdog timeout in seconds. 1<= timeout <=255 (default="
__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
version = inb(WDT_EFDR);
if (version == 0x68) { /* W83697UG */
- printk(KERN_INFO PFX "Watchdog chip version 0x%02x = "
- "W83697UG/UF found at 0x%04x\n", version, wdt_io);
+ pr_info("Watchdog chip version 0x%02x = W83697UG/UF found at 0x%04x\n",
+ version, wdt_io);
outb_p(0x2b, WDT_EFER);
c = inb_p(WDT_EFDR); /* select WDT0 */
outb_p(c, WDT_EFDR); /* set pin118 to WDT0 */
} else {
- printk(KERN_ERR PFX "No W83697UG/UF could be found\n");
+ pr_err("No W83697UG/UF could be found\n");
return -ENODEV;
}
outb_p(0xF6, WDT_EFER); /* Select CRF6 */
t = inb_p(WDT_EFDR); /* read CRF6 */
if (t != 0) {
- printk(KERN_INFO PFX "Watchdog already running."
- " Resetting timeout to %d sec\n", timeout);
+ pr_info("Watchdog already running. Resetting timeout to %d sec\n",
+ timeout);
outb_p(timeout, WDT_EFDR); /* Write back to CRF6 */
}
outb_p(0xF5, WDT_EFER); /* Select CRF5 */
if (expect_close == 42)
wdt_disable();
else {
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
wdt_ping();
}
expect_close = 0;
{
int ret;
- printk(KERN_INFO "WDT driver for the Winbond(TM) W83697UG/UF Super I/O chip initialising.\n");
+ pr_info("WDT driver for the Winbond(TM) W83697UG/UF Super I/O chip initialising\n");
if (wdt_set_heartbeat(timeout)) {
wdt_set_heartbeat(WATCHDOG_TIMEOUT);
- printk(KERN_INFO PFX
- "timeout value must be 1<=timeout<=255, using %d\n",
+ pr_info("timeout value must be 1<=timeout<=255, using %d\n",
WATCHDOG_TIMEOUT);
}
if (!request_region(wdt_io, 1, WATCHDOG_NAME)) {
- printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
- wdt_io);
+ pr_err("I/O address 0x%04x already in use\n", wdt_io);
ret = -EIO;
goto out;
}
ret = register_reboot_notifier(&wdt_notifier);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", ret);
+ pr_err("cannot register reboot notifier (err=%d)\n", ret);
goto unreg_regions;
}
ret = misc_register(&wdt_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto unreg_reboot;
}
- printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n",
+ pr_info("initialized. timeout=%d sec (nowayout=%d)\n",
timeout, nowayout);
out:
* daemon always getting scheduled within that time frame.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <asm/system.h>
#define OUR_NAME "w83877f_wdt"
-#define PFX OUR_NAME ": "
#define ENABLE_W83877F_PORT 0x3F0
#define ENABLE_W83877F 0x87
__MODULE_STRING(WATCHDOG_TIMEOUT) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
spin_unlock(&wdt_spinlock);
} else
- printk(KERN_WARNING PFX
- "Heartbeat lost! Will not ping the watchdog\n");
+ pr_warn("Heartbeat lost! Will not ping the watchdog\n");
}
/*
wdt_change(WDT_ENABLE);
- printk(KERN_INFO PFX "Watchdog timer is now enabled.\n");
+ pr_info("Watchdog timer is now enabled\n");
}
static void wdt_turnoff(void)
wdt_change(WDT_DISABLE);
- printk(KERN_INFO PFX "Watchdog timer is now disabled...\n");
+ pr_info("Watchdog timer is now disabled...\n");
}
static void wdt_keepalive(void)
wdt_turnoff();
else {
del_timer(&timer);
- printk(KERN_CRIT PFX
- "device file closed unexpectedly. Will not stop the WDT!\n");
+ pr_crit("device file closed unexpectedly. Will not stop the WDT!\n");
}
clear_bit(0, &wdt_is_open);
wdt_expect_close = 0;
if (timeout < 1 || timeout > 3600) { /* arbitrary upper limit */
timeout = WATCHDOG_TIMEOUT;
- printk(KERN_INFO PFX
- "timeout value must be 1 <= x <= 3600, using %d\n",
- timeout);
+ pr_info("timeout value must be 1 <= x <= 3600, using %d\n",
+ timeout);
}
if (!request_region(ENABLE_W83877F_PORT, 2, "W83877F WDT")) {
- printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
- ENABLE_W83877F_PORT);
+ pr_err("I/O address 0x%04x already in use\n",
+ ENABLE_W83877F_PORT);
rc = -EIO;
goto err_out;
}
if (!request_region(WDT_PING, 1, "W8387FF WDT")) {
- printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
- WDT_PING);
+ pr_err("I/O address 0x%04x already in use\n", WDT_PING);
rc = -EIO;
goto err_out_region1;
}
rc = register_reboot_notifier(&wdt_notifier);
if (rc) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", rc);
+ pr_err("cannot register reboot notifier (err=%d)\n", rc);
goto err_out_region2;
}
rc = misc_register(&wdt_miscdev);
if (rc) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- wdt_miscdev.minor, rc);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ wdt_miscdev.minor, rc);
goto err_out_reboot;
}
- printk(KERN_INFO PFX
- "WDT driver for W83877F initialised. timeout=%d sec (nowayout=%d)\n",
+ pr_info("WDT driver for W83877F initialised. timeout=%d sec (nowayout=%d)\n",
timeout, nowayout);
return 0;
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#define WATCHDOG_VERSION "1.00"
#define WATCHDOG_NAME "W83977F WDT"
-#define PFX WATCHDOG_NAME ": "
-#define DRIVER_VERSION WATCHDOG_NAME " driver, v" WATCHDOG_VERSION "\n"
#define IO_INDEX_PORT 0x3F0
#define IO_DATA_PORT (IO_INDEX_PORT+1)
module_param(testmode, int, 0);
MODULE_PARM_DESC(testmode, "Watchdog testmode (1 = no reboot), default=0");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
spin_unlock_irqrestore(&spinlock, flags);
- printk(KERN_INFO PFX "activated.\n");
+ pr_info("activated\n");
return 0;
}
spin_unlock_irqrestore(&spinlock, flags);
- printk(KERN_INFO PFX "shutdown.\n");
+ pr_info("shutdown\n");
return 0;
}
clear_bit(0, &timer_alive);
} else {
wdt_keepalive();
- printk(KERN_CRIT PFX
- "unexpected close, not stopping watchdog!\n");
+ pr_crit("unexpected close, not stopping watchdog!\n");
}
expect_close = 0;
return 0;
{
int rc;
- printk(KERN_INFO PFX DRIVER_VERSION);
+ pr_info("driver v%s\n", WATCHDOG_VERSION);
/*
* Check that the timeout value is within it's range;
*/
if (wdt_set_timeout(timeout)) {
wdt_set_timeout(DEFAULT_TIMEOUT);
- printk(KERN_INFO PFX
- "timeout value must be 15 <= timeout <= 7635, using %d\n",
- DEFAULT_TIMEOUT);
+ pr_info("timeout value must be 15 <= timeout <= 7635, using %d\n",
+ DEFAULT_TIMEOUT);
}
if (!request_region(IO_INDEX_PORT, 2, WATCHDOG_NAME)) {
- printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
- IO_INDEX_PORT);
+ pr_err("I/O address 0x%04x already in use\n", IO_INDEX_PORT);
rc = -EIO;
goto err_out;
}
rc = register_reboot_notifier(&wdt_notifier);
if (rc) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", rc);
+ pr_err("cannot register reboot notifier (err=%d)\n", rc);
goto err_out_region;
}
rc = misc_register(&wdt_miscdev);
if (rc) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- wdt_miscdev.minor, rc);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ wdt_miscdev.minor, rc);
goto err_out_reboot;
}
- printk(KERN_INFO PFX
- "initialized. timeout=%d sec (nowayout=%d testmode=%d)\n",
- timeout, nowayout, testmode);
+ pr_info("initialized. timeout=%d sec (nowayout=%d testmode=%d)\n",
+ timeout, nowayout, testmode);
return 0;
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/miscdevice.h>
"Watchdog timeout in seconds. 1 <= timeout <= 255, default="
__MODULE_STRING(WD_TIMO) ".");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
if (expect_close == 42)
wafwdt_stop();
else {
- printk(KERN_CRIT PFX
- "WDT device closed unexpectedly. WDT will not stop!\n");
+ pr_crit("WDT device closed unexpectedly. WDT will not stop!\n");
wafwdt_ping();
}
clear_bit(0, &wafwdt_is_open);
{
int ret;
- printk(KERN_INFO
- "WDT driver for Wafer 5823 single board computer initialising.\n");
+ pr_info("WDT driver for Wafer 5823 single board computer initialising\n");
if (timeout < 1 || timeout > 255) {
timeout = WD_TIMO;
- printk(KERN_INFO PFX
- "timeout value must be 1 <= x <= 255, using %d\n",
- timeout);
+ pr_info("timeout value must be 1 <= x <= 255, using %d\n",
+ timeout);
}
if (wdt_stop != wdt_start) {
if (!request_region(wdt_stop, 1, "Wafer 5823 WDT")) {
- printk(KERN_ERR PFX
- "I/O address 0x%04x already in use\n",
- wdt_stop);
+ pr_err("I/O address 0x%04x already in use\n", wdt_stop);
ret = -EIO;
goto error;
}
}
if (!request_region(wdt_start, 1, "Wafer 5823 WDT")) {
- printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
- wdt_start);
+ pr_err("I/O address 0x%04x already in use\n", wdt_start);
ret = -EIO;
goto error2;
}
ret = register_reboot_notifier(&wafwdt_notifier);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", ret);
+ pr_err("cannot register reboot notifier (err=%d)\n", ret);
goto error3;
}
ret = misc_register(&wafwdt_miscdev);
if (ret != 0) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto error4;
}
- printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n",
+ pr_info("initialized. timeout=%d sec (nowayout=%d)\n",
timeout, nowayout);
return ret;
/* We only support 1 watchdog device via the /dev/watchdog interface */
ret = watchdog_dev_register(wdd);
if (ret) {
- pr_err("error registering /dev/watchdog (err=%d).\n", ret);
+ pr_err("error registering /dev/watchdog (err=%d)\n", ret);
return ret;
}
ret = watchdog_dev_unregister(wdd);
if (ret)
- pr_err("error unregistering /dev/watchdog (err=%d).\n", ret);
+ pr_err("error unregistering /dev/watchdog (err=%d)\n", ret);
}
EXPORT_SYMBOL_GPL(watchdog_unregister_device);
err = wdd->ops->set_timeout(wdd, val);
if (err < 0)
return err;
- wdd->timeout = val;
/* If the watchdog is active then we send a keepalive ping
* to make sure that the watchdog keep's running (and if
* possible that it takes the new timeout) */
if (wdd->timeout == 0)
return -EOPNOTSUPP;
return put_user(wdd->timeout, p);
+ case WDIOC_GETTIMELEFT:
+ if (!wdd->ops->get_timeleft)
+ return -EOPNOTSUPP;
+
+ return put_user(wdd->ops->get_timeleft(wdd), p);
default:
return -ENOTTY;
}
/* Only one device can register for /dev/watchdog */
if (test_and_set_bit(0, &watchdog_dev_busy)) {
- pr_err("only one watchdog can use /dev/watchdog.\n");
+ pr_err("only one watchdog can use /dev/watchdog\n");
return -EBUSY;
}
err = misc_register(&watchdog_miscdev);
if (err != 0) {
- pr_err("%s: cannot register miscdev on minor=%d (err=%d).\n",
- watchdog->info->identity, WATCHDOG_MINOR, err);
+ pr_err("%s: cannot register miscdev on minor=%d (err=%d)\n",
+ watchdog->info->identity, WATCHDOG_MINOR, err);
goto out;
}
/* We can only unregister the watchdog device that was registered */
if (watchdog != wdd) {
- pr_err("%s: watchdog was not registered as /dev/watchdog.\n",
- watchdog->info->identity);
+ pr_err("%s: watchdog was not registered as /dev/watchdog\n",
+ watchdog->info->identity);
return -ENODEV;
}
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/kernel.h>
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
MODULE_ALIAS_MISCDEV(TEMP_MINOR);
-static int wdrtas_nowayout = WATCHDOG_NOWAYOUT;
+static bool wdrtas_nowayout = WATCHDOG_NOWAYOUT;
static atomic_t wdrtas_miscdev_open = ATOMIC_INIT(0);
static char wdrtas_expect_close;
result = rtas_call(wdrtas_token_set_indicator, 3, 1, NULL,
WDRTAS_SURVEILLANCE_IND, 0, interval);
if (result < 0 && print_msg) {
- printk(KERN_ERR "wdrtas: setting the watchdog to %i "
- "timeout failed: %li\n", interval, result);
+ pr_err("setting the watchdog to %i timeout failed: %li\n",
+ interval, result);
print_msg--;
}
spin_unlock(&rtas_data_buf_lock);
if (value[0] != 0 || value[1] != 2 || value[3] != 0 || result < 0) {
- printk(KERN_WARNING "wdrtas: could not get sp_spi watchdog "
- "timeout (%li). Continuing\n", result);
+ pr_warn("could not get sp_spi watchdog timeout (%li). Continuing\n",
+ result);
return fallback_value;
}
int i;
for (i = 0; i < WDRTAS_LOGBUFFER_LEN; i += 16)
- printk(KERN_INFO "wdrtas: dumping event (line %i/%i), data = "
- "%02x %02x %02x %02x %02x %02x %02x %02x "
- "%02x %02x %02x %02x %02x %02x %02x %02x\n",
- (i / 16) + 1, (WDRTAS_LOGBUFFER_LEN / 16),
- wdrtas_logbuffer[i + 0], wdrtas_logbuffer[i + 1],
- wdrtas_logbuffer[i + 2], wdrtas_logbuffer[i + 3],
- wdrtas_logbuffer[i + 4], wdrtas_logbuffer[i + 5],
- wdrtas_logbuffer[i + 6], wdrtas_logbuffer[i + 7],
- wdrtas_logbuffer[i + 8], wdrtas_logbuffer[i + 9],
- wdrtas_logbuffer[i + 10], wdrtas_logbuffer[i + 11],
- wdrtas_logbuffer[i + 12], wdrtas_logbuffer[i + 13],
- wdrtas_logbuffer[i + 14], wdrtas_logbuffer[i + 15]);
+ pr_info("dumping event (line %i/%i), data = "
+ "%02x %02x %02x %02x %02x %02x %02x %02x "
+ "%02x %02x %02x %02x %02x %02x %02x %02x\n",
+ (i / 16) + 1, (WDRTAS_LOGBUFFER_LEN / 16),
+ wdrtas_logbuffer[i + 0], wdrtas_logbuffer[i + 1],
+ wdrtas_logbuffer[i + 2], wdrtas_logbuffer[i + 3],
+ wdrtas_logbuffer[i + 4], wdrtas_logbuffer[i + 5],
+ wdrtas_logbuffer[i + 6], wdrtas_logbuffer[i + 7],
+ wdrtas_logbuffer[i + 8], wdrtas_logbuffer[i + 9],
+ wdrtas_logbuffer[i + 10], wdrtas_logbuffer[i + 11],
+ wdrtas_logbuffer[i + 12], wdrtas_logbuffer[i + 13],
+ wdrtas_logbuffer[i + 14], wdrtas_logbuffer[i + 15]);
}
/**
(void *)__pa(wdrtas_logbuffer),
WDRTAS_LOGBUFFER_LEN);
if (result < 0)
- printk(KERN_ERR "wdrtas: event-scan failed: %li\n",
- result);
+ pr_err("event-scan failed: %li\n", result);
if (result == 0)
wdrtas_log_scanned_event();
} while (result == 0);
result = rtas_get_sensor(WDRTAS_THERMAL_SENSOR, 0, &temperature);
if (result < 0)
- printk(KERN_WARNING "wdrtas: reading the thermal sensor "
- "failed: %i\n", result);
+ pr_warn("reading the thermal sensor failed: %i\n", result);
else
temperature = ((temperature * 9) / 5) + 32; /* fahrenheit */
if (wdrtas_expect_close == WDRTAS_MAGIC_CHAR)
wdrtas_timer_stop();
else {
- printk(KERN_WARNING "wdrtas: got unexpected close. Watchdog "
- "not stopped.\n");
+ pr_warn("got unexpected close. Watchdog not stopped.\n");
wdrtas_timer_keepalive();
}
{
wdrtas_token_get_sensor_state = rtas_token("get-sensor-state");
if (wdrtas_token_get_sensor_state == RTAS_UNKNOWN_SERVICE) {
- printk(KERN_WARNING "wdrtas: couldn't get token for "
- "get-sensor-state. Trying to continue without "
- "temperature support.\n");
+ pr_warn("couldn't get token for get-sensor-state. Trying to continue without temperature support.\n");
}
wdrtas_token_get_sp = rtas_token("ibm,get-system-parameter");
if (wdrtas_token_get_sp == RTAS_UNKNOWN_SERVICE) {
- printk(KERN_WARNING "wdrtas: couldn't get token for "
- "ibm,get-system-parameter. Trying to continue with "
- "a default timeout value of %i seconds.\n",
- WDRTAS_DEFAULT_INTERVAL);
+ pr_warn("couldn't get token for ibm,get-system-parameter. Trying to continue with a default timeout value of %i seconds.\n",
+ WDRTAS_DEFAULT_INTERVAL);
}
wdrtas_token_set_indicator = rtas_token("set-indicator");
if (wdrtas_token_set_indicator == RTAS_UNKNOWN_SERVICE) {
- printk(KERN_ERR "wdrtas: couldn't get token for "
- "set-indicator. Terminating watchdog code.\n");
+ pr_err("couldn't get token for set-indicator. Terminating watchdog code.\n");
return -EIO;
}
wdrtas_token_event_scan = rtas_token("event-scan");
if (wdrtas_token_event_scan == RTAS_UNKNOWN_SERVICE) {
- printk(KERN_ERR "wdrtas: couldn't get token for event-scan. "
- "Terminating watchdog code.\n");
+ pr_err("couldn't get token for event-scan. Terminating watchdog code.\n");
return -EIO;
}
result = misc_register(&wdrtas_miscdev);
if (result) {
- printk(KERN_ERR "wdrtas: couldn't register watchdog misc "
- "device. Terminating watchdog code.\n");
+ pr_err("couldn't register watchdog misc device. Terminating watchdog code.\n");
return result;
}
if (wdrtas_token_get_sensor_state != RTAS_UNKNOWN_SERVICE) {
result = misc_register(&wdrtas_tempdev);
if (result) {
- printk(KERN_WARNING "wdrtas: couldn't register "
- "watchdog temperature misc device. Continuing "
- "without temperature support.\n");
+ pr_warn("couldn't register watchdog temperature misc device. Continuing without temperature support.\n");
wdrtas_token_get_sensor_state = RTAS_UNKNOWN_SERVICE;
}
}
return -ENODEV;
if (register_reboot_notifier(&wdrtas_notifier)) {
- printk(KERN_ERR "wdrtas: could not register reboot notifier. "
- "Terminating watchdog code.\n");
+ pr_err("could not register reboot notifier. Terminating watchdog code.\n");
wdrtas_unregister_devs();
return -ENODEV;
}
* Matt Domsch : Added nowayout module option
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
"Watchdog heartbeat in seconds. (0 < heartbeat < 65536, default="
__MODULE_STRING(WD_TIMO) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
static void wdt_decode_501(int status)
{
if (!(status & WDC_SR_TGOOD))
- printk(KERN_CRIT "Overheat alarm.(%d)\n", inb_p(WDT_RT));
+ pr_crit("Overheat alarm (%d)\n", inb_p(WDT_RT));
if (!(status & WDC_SR_PSUOVER))
- printk(KERN_CRIT "PSU over voltage.\n");
+ pr_crit("PSU over voltage\n");
if (!(status & WDC_SR_PSUUNDR))
- printk(KERN_CRIT "PSU under voltage.\n");
+ pr_crit("PSU under voltage\n");
}
/**
spin_lock(&wdt_lock);
status = inb_p(WDT_SR);
- printk(KERN_CRIT "WDT status %d\n", status);
+ pr_crit("WDT status %d\n", status);
if (type == 501) {
wdt_decode_501(status);
if (tachometer) {
if (!(status & WDC_SR_FANGOOD))
- printk(KERN_CRIT "Possible fan fault.\n");
+ pr_crit("Possible fan fault\n");
}
}
if (!(status & WDC_SR_WCCR)) {
#ifdef SOFTWARE_REBOOT
#ifdef ONLY_TESTING
- printk(KERN_CRIT "Would Reboot.\n");
+ pr_crit("Would Reboot\n");
#else
- printk(KERN_CRIT "Initiating system reboot.\n");
+ pr_crit("Initiating system reboot\n");
emergency_restart();
#endif
#else
- printk(KERN_CRIT "Reset in 5ms.\n");
+ pr_crit("Reset in 5ms\n");
#endif
}
spin_unlock(&wdt_lock);
wdt_stop();
clear_bit(0, &wdt_is_open);
} else {
- printk(KERN_CRIT
- "wdt: WDT device closed unexpectedly. WDT will not stop!\n");
+ pr_crit("WDT device closed unexpectedly. WDT will not stop!\n");
wdt_ping();
}
expect_close = 0;
int ret;
if (type != 500 && type != 501) {
- printk(KERN_ERR "wdt: unknown card type '%d'.\n", type);
+ pr_err("unknown card type '%d'\n", type);
return -ENODEV;
}
if not reset to the default */
if (wdt_set_heartbeat(heartbeat)) {
wdt_set_heartbeat(WD_TIMO);
- printk(KERN_INFO "wdt: heartbeat value must be "
- "0 < heartbeat < 65536, using %d\n", WD_TIMO);
+ pr_info("heartbeat value must be 0 < heartbeat < 65536, using %d\n",
+ WD_TIMO);
}
if (!request_region(io, 8, "wdt501p")) {
- printk(KERN_ERR
- "wdt: I/O address 0x%04x already in use\n", io);
+ pr_err("I/O address 0x%04x already in use\n", io);
ret = -EBUSY;
goto out;
}
ret = request_irq(irq, wdt_interrupt, 0, "wdt501p", NULL);
if (ret) {
- printk(KERN_ERR "wdt: IRQ %d is not free.\n", irq);
+ pr_err("IRQ %d is not free\n", irq);
goto outreg;
}
ret = register_reboot_notifier(&wdt_notifier);
if (ret) {
- printk(KERN_ERR
- "wdt: cannot register reboot notifier (err=%d)\n", ret);
+ pr_err("cannot register reboot notifier (err=%d)\n", ret);
goto outirq;
}
if (type == 501) {
ret = misc_register(&temp_miscdev);
if (ret) {
- printk(KERN_ERR "wdt: cannot register miscdev "
- "on minor=%d (err=%d)\n", TEMP_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ TEMP_MINOR, ret);
goto outrbt;
}
}
ret = misc_register(&wdt_miscdev);
if (ret) {
- printk(KERN_ERR
- "wdt: cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto outmisc;
}
- printk(KERN_INFO "WDT500/501-P driver 0.10 "
- "at 0x%04x (Interrupt %d). heartbeat=%d sec (nowayout=%d)\n",
+ pr_info("WDT500/501-P driver 0.10 at 0x%04x (Interrupt %d). heartbeat=%d sec (nowayout=%d)\n",
io, irq, heartbeat, nowayout);
if (type == 501)
- printk(KERN_INFO "wdt: Fan Tachometer is %s\n",
- (tachometer ? "Enabled" : "Disabled"));
+ pr_info("Fan Tachometer is %s\n",
+ tachometer ? "Enabled" : "Disabled");
return 0;
outmisc:
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
*/
static void watchdog_fire(int irq, void *dev_id)
{
- printk(KERN_CRIT "Watchdog: Would Reboot.\n");
+ pr_crit("Would Reboot\n");
*CSR_TIMER4_CNTL = 0;
*CSR_TIMER4_CLR = 0;
}
if (retval < 0)
return retval;
- printk(KERN_INFO
- "Footbridge Watchdog Timer: 0.01, timer margin: %d sec\n",
- soft_margin);
+ pr_info("Footbridge Watchdog Timer: 0.01, timer margin: %d sec\n",
+ soft_margin);
if (machine_is_cats())
- printk(KERN_WARNING
- "Warning: Watchdog reset may not work on this machine.\n");
+ pr_warn("Warning: Watchdog reset may not work on this machine\n");
return 0;
}
* Netwinders only
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#define WATCHDOG_VERSION "0.04"
#define WATCHDOG_NAME "Wdt977"
-#define PFX WATCHDOG_NAME ": "
-#define DRIVER_VERSION WATCHDOG_NAME " driver, v" WATCHDOG_VERSION "\n"
#define IO_INDEX_PORT 0x370 /* on some systems it can be 0x3F0 */
#define IO_DATA_PORT (IO_INDEX_PORT + 1)
module_param(testmode, int, 0);
MODULE_PARM_DESC(testmode, "Watchdog testmode (1 = no reboot), default=0");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
outb_p(LOCK_DATA, IO_INDEX_PORT);
spin_unlock_irqrestore(&spinlock, flags);
- printk(KERN_INFO PFX "activated.\n");
+ pr_info("activated\n");
return 0;
}
outb_p(LOCK_DATA, IO_INDEX_PORT);
spin_unlock_irqrestore(&spinlock, flags);
- printk(KERN_INFO PFX "shutdown.\n");
+ pr_info("shutdown\n");
return 0;
}
clear_bit(0, &timer_alive);
} else {
wdt977_keepalive();
- printk(KERN_CRIT PFX
- "Unexpected close, not stopping watchdog!\n");
+ pr_crit("Unexpected close, not stopping watchdog!\n");
}
expect_close = 0;
return 0;
{
int rc;
- printk(KERN_INFO PFX DRIVER_VERSION);
+ pr_info("driver v%s\n", WATCHDOG_VERSION);
/* Check that the timeout value is within its range;
if not reset to the default */
if (wdt977_set_timeout(timeout)) {
wdt977_set_timeout(DEFAULT_TIMEOUT);
- printk(KERN_INFO PFX
- "timeout value must be 60 < timeout < 15300, using %d\n",
- DEFAULT_TIMEOUT);
+ pr_info("timeout value must be 60 < timeout < 15300, using %d\n",
+ DEFAULT_TIMEOUT);
}
/* on Netwinder the IOports are already reserved by
*/
if (!machine_is_netwinder()) {
if (!request_region(IO_INDEX_PORT, 2, WATCHDOG_NAME)) {
- printk(KERN_ERR PFX
- "I/O address 0x%04x already in use\n",
- IO_INDEX_PORT);
+ pr_err("I/O address 0x%04x already in use\n",
+ IO_INDEX_PORT);
rc = -EIO;
goto err_out;
}
rc = register_reboot_notifier(&wdt977_notifier);
if (rc) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", rc);
+ pr_err("cannot register reboot notifier (err=%d)\n", rc);
goto err_out_region;
}
rc = misc_register(&wdt977_miscdev);
if (rc) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- wdt977_miscdev.minor, rc);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ wdt977_miscdev.minor, rc);
goto err_out_reboot;
}
- printk(KERN_INFO PFX
- "initialized. timeout=%d sec (nowayout=%d, testmode=%i)\n",
- timeout, nowayout, testmode);
+ pr_info("initialized. timeout=%d sec (nowayout=%d, testmode=%i)\n",
+ timeout, nowayout, testmode);
return 0;
* Matt Domsch : nowayout module option
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#define WDT_IS_PCI
#include "wd501p.h"
-#define PFX "wdt_pci: "
-
/* We can only use 1 card due to the /dev/watchdog restriction */
static int dev_count;
"Watchdog heartbeat in seconds. (0<heartbeat<65536, default="
__MODULE_STRING(WD_TIMO) ")");
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
status = inb(WDT_SR);
udelay(8);
- printk(KERN_CRIT PFX "status %d\n", status);
+ pr_crit("status %d\n", status);
if (type == 501) {
if (!(status & WDC_SR_TGOOD)) {
- printk(KERN_CRIT PFX "Overheat alarm.(%d)\n",
- inb(WDT_RT));
+ pr_crit("Overheat alarm (%d)\n", inb(WDT_RT));
udelay(8);
}
if (!(status & WDC_SR_PSUOVER))
- printk(KERN_CRIT PFX "PSU over voltage.\n");
+ pr_crit("PSU over voltage\n");
if (!(status & WDC_SR_PSUUNDR))
- printk(KERN_CRIT PFX "PSU under voltage.\n");
+ pr_crit("PSU under voltage\n");
if (tachometer) {
if (!(status & WDC_SR_FANGOOD))
- printk(KERN_CRIT PFX "Possible fan fault.\n");
+ pr_crit("Possible fan fault\n");
}
}
if (!(status & WDC_SR_WCCR)) {
#ifdef SOFTWARE_REBOOT
#ifdef ONLY_TESTING
- printk(KERN_CRIT PFX "Would Reboot.\n");
+ pr_crit("Would Reboot\n");
#else
- printk(KERN_CRIT PFX "Initiating system reboot.\n");
+ pr_crit("Initiating system reboot\n");
emergency_restart(NULL);
#endif
#else
- printk(KERN_CRIT PFX "Reset in 5ms.\n");
+ pr_crit("Reset in 5ms\n");
#endif
}
spin_unlock(&wdtpci_lock);
if (expect_close == 42) {
wdtpci_stop();
} else {
- printk(KERN_CRIT PFX "Unexpected close, not stopping timer!");
+ pr_crit("Unexpected close, not stopping timer!\n");
wdtpci_ping();
}
expect_close = 0;
dev_count++;
if (dev_count > 1) {
- printk(KERN_ERR PFX "This driver only supports one device\n");
+ pr_err("This driver only supports one device\n");
return -ENODEV;
}
if (type != 500 && type != 501) {
- printk(KERN_ERR PFX "unknown card type '%d'.\n", type);
+ pr_err("unknown card type '%d'\n", type);
return -ENODEV;
}
if (pci_enable_device(dev)) {
- printk(KERN_ERR PFX "Not possible to enable PCI Device\n");
+ pr_err("Not possible to enable PCI Device\n");
return -ENODEV;
}
if (pci_resource_start(dev, 2) == 0x0000) {
- printk(KERN_ERR PFX "No I/O-Address for card detected\n");
+ pr_err("No I/O-Address for card detected\n");
ret = -ENODEV;
goto out_pci;
}
if (pci_request_region(dev, 2, "wdt_pci")) {
- printk(KERN_ERR PFX "I/O address 0x%llx already in use\n",
- (unsigned long long)pci_resource_start(dev, 2));
+ pr_err("I/O address 0x%llx already in use\n",
+ (unsigned long long)pci_resource_start(dev, 2));
goto out_pci;
}
if (request_irq(irq, wdtpci_interrupt, IRQF_SHARED,
"wdt_pci", &wdtpci_miscdev)) {
- printk(KERN_ERR PFX "IRQ %d is not free\n", irq);
+ pr_err("IRQ %d is not free\n", irq);
goto out_reg;
}
- printk(KERN_INFO
- "PCI-WDT500/501 (PCI-WDG-CSM) driver 0.10 at 0x%llx (Interrupt %d)\n",
- (unsigned long long)io, irq);
+ pr_info("PCI-WDT500/501 (PCI-WDG-CSM) driver 0.10 at 0x%llx (Interrupt %d)\n",
+ (unsigned long long)io, irq);
/* Check that the heartbeat value is within its range;
if not reset to the default */
if (wdtpci_set_heartbeat(heartbeat)) {
wdtpci_set_heartbeat(WD_TIMO);
- printk(KERN_INFO PFX
- "heartbeat value must be 0 < heartbeat < 65536, using %d\n",
- WD_TIMO);
+ pr_info("heartbeat value must be 0 < heartbeat < 65536, using %d\n",
+ WD_TIMO);
}
ret = register_reboot_notifier(&wdtpci_notifier);
if (ret) {
- printk(KERN_ERR PFX
- "cannot register reboot notifier (err=%d)\n", ret);
+ pr_err("cannot register reboot notifier (err=%d)\n", ret);
goto out_irq;
}
if (type == 501) {
ret = misc_register(&temp_miscdev);
if (ret) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- TEMP_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ TEMP_MINOR, ret);
goto out_rbt;
}
}
ret = misc_register(&wdtpci_miscdev);
if (ret) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
+ pr_err("cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
goto out_misc;
}
- printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
+ pr_info("initialized. heartbeat=%d sec (nowayout=%d)\n",
heartbeat, nowayout);
if (type == 501)
- printk(KERN_INFO "wdt: Fan Tachometer is %s\n",
- (tachometer ? "Enabled" : "Disabled"));
+ pr_info("Fan Tachometer is %s\n",
+ tachometer ? "Enabled" : "Disabled");
ret = 0;
out:
#include <linux/mfd/wm831x/pdata.h>
#include <linux/mfd/wm831x/watchdog.h>
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
ret);
}
+ wdt_dev->timeout = timeout;
+
return ret;
}
* as published by the Free Software Foundation
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
#include <linux/platform_device.h>
#include <linux/watchdog.h>
#include <linux/uaccess.h>
#include <linux/mfd/wm8350/core.h>
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-static unsigned long wm8350_wdt_users;
-static struct miscdevice wm8350_wdt_miscdev;
-static int wm8350_wdt_expect_close;
static DEFINE_MUTEX(wdt_mutex);
static struct {
- int time; /* Seconds */
- u16 val; /* To be set in WM8350_SYSTEM_CONTROL_2 */
+ unsigned int time; /* Seconds */
+ u16 val; /* To be set in WM8350_SYSTEM_CONTROL_2 */
} wm8350_wdt_cfgs[] = {
{ 1, 0x02 },
{ 2, 0x04 },
{ 4, 0x05 },
};
-static struct wm8350 *get_wm8350(void)
-{
- return dev_get_drvdata(wm8350_wdt_miscdev.parent);
-}
-
-static int wm8350_wdt_set_timeout(struct wm8350 *wm8350, u16 value)
+static int wm8350_wdt_set_timeout(struct watchdog_device *wdt_dev,
+ unsigned int timeout)
{
- int ret;
+ struct wm8350 *wm8350 = watchdog_get_drvdata(wdt_dev);
+ int ret, i;
u16 reg;
+ for (i = 0; i < ARRAY_SIZE(wm8350_wdt_cfgs); i++)
+ if (wm8350_wdt_cfgs[i].time == timeout)
+ break;
+ if (i == ARRAY_SIZE(wm8350_wdt_cfgs))
+ return -EINVAL;
+
mutex_lock(&wdt_mutex);
wm8350_reg_unlock(wm8350);
reg = wm8350_reg_read(wm8350, WM8350_SYSTEM_CONTROL_2);
reg &= ~WM8350_WDOG_TO_MASK;
- reg |= value;
+ reg |= wm8350_wdt_cfgs[i].val;
ret = wm8350_reg_write(wm8350, WM8350_SYSTEM_CONTROL_2, reg);
wm8350_reg_lock(wm8350);
mutex_unlock(&wdt_mutex);
+ wdt_dev->timeout = timeout;
return ret;
}
-static int wm8350_wdt_start(struct wm8350 *wm8350)
+static int wm8350_wdt_start(struct watchdog_device *wdt_dev)
{
+ struct wm8350 *wm8350 = watchdog_get_drvdata(wdt_dev);
int ret;
u16 reg;
return ret;
}
-static int wm8350_wdt_stop(struct wm8350 *wm8350)
+static int wm8350_wdt_stop(struct watchdog_device *wdt_dev)
{
+ struct wm8350 *wm8350 = watchdog_get_drvdata(wdt_dev);
int ret;
u16 reg;
return ret;
}
-static int wm8350_wdt_kick(struct wm8350 *wm8350)
+static int wm8350_wdt_ping(struct watchdog_device *wdt_dev)
{
+ struct wm8350 *wm8350 = watchdog_get_drvdata(wdt_dev);
int ret;
u16 reg;
return ret;
}
-static int wm8350_wdt_open(struct inode *inode, struct file *file)
-{
- struct wm8350 *wm8350 = get_wm8350();
- int ret;
-
- if (!wm8350)
- return -ENODEV;
-
- if (test_and_set_bit(0, &wm8350_wdt_users))
- return -EBUSY;
-
- ret = wm8350_wdt_start(wm8350);
- if (ret != 0)
- return ret;
-
- return nonseekable_open(inode, file);
-}
-
-static int wm8350_wdt_release(struct inode *inode, struct file *file)
-{
- struct wm8350 *wm8350 = get_wm8350();
-
- if (wm8350_wdt_expect_close)
- wm8350_wdt_stop(wm8350);
- else {
- dev_warn(wm8350->dev, "Watchdog device closed uncleanly\n");
- wm8350_wdt_kick(wm8350);
- }
-
- clear_bit(0, &wm8350_wdt_users);
-
- return 0;
-}
-
-static ssize_t wm8350_wdt_write(struct file *file,
- const char __user *data, size_t count,
- loff_t *ppos)
-{
- struct wm8350 *wm8350 = get_wm8350();
- size_t i;
-
- if (count) {
- wm8350_wdt_kick(wm8350);
-
- if (!nowayout) {
- /* In case it was set long ago */
- wm8350_wdt_expect_close = 0;
-
- /* scan to see whether or not we got the magic
- character */
- for (i = 0; i != count; i++) {
- char c;
- if (get_user(c, data + i))
- return -EFAULT;
- if (c == 'V')
- wm8350_wdt_expect_close = 42;
- }
- }
- }
- return count;
-}
-
-static const struct watchdog_info ident = {
+static const struct watchdog_info wm8350_wdt_info = {
.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
.identity = "WM8350 Watchdog",
};
-static long wm8350_wdt_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- struct wm8350 *wm8350 = get_wm8350();
- int ret = -ENOTTY, time, i;
- void __user *argp = (void __user *)arg;
- int __user *p = argp;
- u16 reg;
-
- switch (cmd) {
- case WDIOC_GETSUPPORT:
- ret = copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
- break;
-
- case WDIOC_GETSTATUS:
- case WDIOC_GETBOOTSTATUS:
- ret = put_user(0, p);
- break;
-
- case WDIOC_SETOPTIONS:
- {
- int options;
-
- if (get_user(options, p))
- return -EFAULT;
-
- ret = -EINVAL;
-
- /* Setting both simultaneously means at least one must fail */
- if (options == WDIOS_DISABLECARD)
- ret = wm8350_wdt_stop(wm8350);
-
- if (options == WDIOS_ENABLECARD)
- ret = wm8350_wdt_start(wm8350);
- break;
- }
-
- case WDIOC_KEEPALIVE:
- ret = wm8350_wdt_kick(wm8350);
- break;
-
- case WDIOC_SETTIMEOUT:
- ret = get_user(time, p);
- if (ret)
- break;
-
- if (time == 0) {
- if (nowayout)
- ret = -EINVAL;
- else
- wm8350_wdt_stop(wm8350);
- break;
- }
-
- for (i = 0; i < ARRAY_SIZE(wm8350_wdt_cfgs); i++)
- if (wm8350_wdt_cfgs[i].time == time)
- break;
- if (i == ARRAY_SIZE(wm8350_wdt_cfgs))
- ret = -EINVAL;
- else
- ret = wm8350_wdt_set_timeout(wm8350,
- wm8350_wdt_cfgs[i].val);
- break;
-
- case WDIOC_GETTIMEOUT:
- reg = wm8350_reg_read(wm8350, WM8350_SYSTEM_CONTROL_2);
- reg &= WM8350_WDOG_TO_MASK;
- for (i = 0; i < ARRAY_SIZE(wm8350_wdt_cfgs); i++)
- if (wm8350_wdt_cfgs[i].val == reg)
- break;
- if (i == ARRAY_SIZE(wm8350_wdt_cfgs)) {
- dev_warn(wm8350->dev,
- "Unknown watchdog configuration: %x\n", reg);
- ret = -EINVAL;
- } else
- ret = put_user(wm8350_wdt_cfgs[i].time, p);
-
- }
-
- return ret;
-}
-
-static const struct file_operations wm8350_wdt_fops = {
+static const struct watchdog_ops wm8350_wdt_ops = {
.owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = wm8350_wdt_write,
- .unlocked_ioctl = wm8350_wdt_ioctl,
- .open = wm8350_wdt_open,
- .release = wm8350_wdt_release,
+ .start = wm8350_wdt_start,
+ .stop = wm8350_wdt_stop,
+ .ping = wm8350_wdt_ping,
+ .set_timeout = wm8350_wdt_set_timeout,
};
-static struct miscdevice wm8350_wdt_miscdev = {
- .minor = WATCHDOG_MINOR,
- .name = "watchdog",
- .fops = &wm8350_wdt_fops,
+static struct watchdog_device wm8350_wdt = {
+ .info = &wm8350_wdt_info,
+ .ops = &wm8350_wdt_ops,
+ .timeout = 4,
+ .min_timeout = 1,
+ .max_timeout = 4,
};
static int __devinit wm8350_wdt_probe(struct platform_device *pdev)
return -ENODEV;
}
- /* Default to 4s timeout */
- wm8350_wdt_set_timeout(wm8350, 0x05);
+ watchdog_set_nowayout(&wm8350_wdt, nowayout);
+ watchdog_set_drvdata(&wm8350_wdt, wm8350);
- wm8350_wdt_miscdev.parent = &pdev->dev;
+ /* Default to 4s timeout */
+ wm8350_wdt_set_timeout(&wm8350_wdt, 4);
- return misc_register(&wm8350_wdt_miscdev);
+ return watchdog_register_device(&wm8350_wdt);
}
static int __devexit wm8350_wdt_remove(struct platform_device *pdev)
{
- misc_deregister(&wm8350_wdt_miscdev);
-
+ watchdog_unregister_device(&wm8350_wdt);
return 0;
}
* 2 of the License, or (at your option) any later version.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#define DRV_NAME "wdt"
#define DRV_VERSION "0.01"
-#define PFX DRV_NAME ": "
#include <linux/bug.h>
#include <linux/errno.h>
static int xen_wdt_release(struct inode *inode, struct file *file)
{
+ int err = 0;
+
if (expect_release)
- xen_wdt_stop();
+ err = xen_wdt_stop();
else {
- printk(KERN_CRIT PFX
- "unexpected close, not stopping watchdog!\n");
+ pr_crit("unexpected close, not stopping watchdog!\n");
xen_wdt_kick();
}
- is_active = false;
+ is_active = err;
expect_release = false;
- return 0;
+ return err;
}
static ssize_t xen_wdt_write(struct file *file, const char __user *data,
case -EINVAL:
if (!timeout) {
timeout = WATCHDOG_TIMEOUT;
- printk(KERN_INFO PFX
- "timeout value invalid, using %d\n", timeout);
+ pr_info("timeout value invalid, using %d\n", timeout);
}
ret = misc_register(&xen_wdt_miscdev);
if (ret) {
- printk(KERN_ERR PFX
- "cannot register miscdev on minor=%d (%d)\n",
+ pr_err("cannot register miscdev on minor=%d (%d)\n",
WATCHDOG_MINOR, ret);
break;
}
- printk(KERN_INFO PFX
- "initialized (timeout=%ds, nowayout=%d)\n",
- timeout, nowayout);
+ pr_info("initialized (timeout=%ds, nowayout=%d)\n",
+ timeout, nowayout);
break;
case -ENOSYS:
- printk(KERN_INFO PFX "not supported\n");
+ pr_info("not supported\n");
ret = -ENODEV;
break;
default:
- printk(KERN_INFO PFX "bogus return value %d\n", ret);
+ pr_info("bogus return value %d\n", ret);
break;
}
static int xen_wdt_suspend(struct platform_device *dev, pm_message_t state)
{
- return xen_wdt_stop();
+ typeof(wdt.id) id = wdt.id;
+ int rc = xen_wdt_stop();
+
+ wdt.id = id;
+ return rc;
}
static int xen_wdt_resume(struct platform_device *dev)
{
+ if (!wdt.id)
+ return 0;
+ wdt.id = 0;
return xen_wdt_start();
}
if (!xen_domain())
return -ENODEV;
- printk(KERN_INFO PFX "Xen WatchDog Timer Driver v%s\n", DRV_VERSION);
+ pr_info("Xen WatchDog Timer Driver v%s\n", DRV_VERSION);
err = platform_driver_register(&xen_wdt_driver);
if (err)
{
platform_device_unregister(platform_device);
platform_driver_unregister(&xen_wdt_driver);
- printk(KERN_INFO PFX "module unloaded\n");
+ pr_info("module unloaded\n");
}
module_init(xen_wdt_init_module);
* @ping: The routine that sends a keepalive ping to the watchdog device.
* @status: The routine that shows the status of the watchdog device.
* @set_timeout:The routine for setting the watchdog devices timeout value.
+ * @get_timeleft:The routine that get's the time that's left before a reset.
* @ioctl: The routines that handles extra ioctl calls.
*
* The watchdog_ops structure contains a list of low-level operations
int (*ping)(struct watchdog_device *);
unsigned int (*status)(struct watchdog_device *);
int (*set_timeout)(struct watchdog_device *, unsigned int);
+ unsigned int (*get_timeleft)(struct watchdog_device *);
long (*ioctl)(struct watchdog_device *, unsigned int, unsigned long);
};
#endif
/* Use the following function to set the nowayout feature */
-static inline void watchdog_set_nowayout(struct watchdog_device *wdd, int nowayout)
+static inline void watchdog_set_nowayout(struct watchdog_device *wdd, bool nowayout)
{
if (nowayout)
set_bit(WDOG_NO_WAY_OUT, &wdd->status);
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / commitdiff