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path: root/drivers/watchdog/pcwd_pci.c
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Diffstat (limited to 'drivers/watchdog/pcwd_pci.c')
-rw-r--r--drivers/watchdog/pcwd_pci.c113
1 files changed, 48 insertions, 65 deletions
diff --git a/drivers/watchdog/pcwd_pci.c b/drivers/watchdog/pcwd_pci.c
index b8d14f88f0b5..c891399bed6a 100644
--- a/drivers/watchdog/pcwd_pci.c
+++ b/drivers/watchdog/pcwd_pci.c
@@ -32,6 +32,8 @@
* 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) */
@@ -54,8 +56,7 @@
#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
@@ -145,8 +146,8 @@ MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. "
"(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) ")");
@@ -159,8 +160,8 @@ static int send_command(int cmd, int *msb, int *lsb)
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.
@@ -185,12 +186,10 @@ static int send_command(int cmd, int *msb, int *lsb)
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");
}
}
@@ -203,9 +202,8 @@ static int send_command(int cmd, int *msb, int *lsb)
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);
@@ -243,27 +241,23 @@ static void pcipcwd_show_card_info(void)
/* 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)
@@ -278,12 +272,12 @@ 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;
}
@@ -303,13 +297,12 @@ static int pcipcwd_stop(void)
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;
}
@@ -322,7 +315,7 @@ static int pcipcwd_keepalive(void)
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;
}
@@ -340,8 +333,7 @@ static int pcipcwd_set_heartbeat(int t)
heartbeat = t;
if (debug >= VERBOSE)
- printk(KERN_DEBUG PFX "New heartbeat: %d\n",
- heartbeat);
+ pr_debug("New heartbeat: %d\n", heartbeat);
return 0;
}
@@ -357,12 +349,11 @@ static int pcipcwd_get_status(int *status)
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;
}
@@ -374,14 +365,14 @@ static int pcipcwd_clear_status(void)
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 */
@@ -394,8 +385,7 @@ static int pcipcwd_clear_status(void)
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;
@@ -418,8 +408,7 @@ static int pcipcwd_get_temperature(int *temperature)
*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;
@@ -437,8 +426,7 @@ static int pcipcwd_get_timeleft(int *time_left)
*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;
}
@@ -583,8 +571,7 @@ static int pcipcwd_open(struct inode *inode, struct file *file)
/* /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;
}
@@ -602,8 +589,7 @@ static int pcipcwd_release(struct inode *inode, struct file *file)
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;
@@ -703,20 +689,20 @@ static int __devinit pcipcwd_card_init(struct pci_dev *pdev,
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;
}
@@ -725,8 +711,8 @@ static int __devinit pcipcwd_card_init(struct pci_dev *pdev,
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;
}
@@ -755,36 +741,33 @@ static int __devinit pcipcwd_card_init(struct pci_dev *pdev,
* 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;
@@ -842,7 +825,7 @@ static void __exit pcipcwd_cleanup_module(void)
{
pci_unregister_driver(&pcipcwd_driver);
- printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
+ pr_info("Watchdog Module Unloaded\n");
}
module_init(pcipcwd_init_module);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.