2 files changed, 239 insertions, 223 deletions

diff --git a/drivers/char/watchdog/pcwd.c b/drivers/char/watchdog/pcwd.c
index 37c9e13ad3ac..8d6b249ad66b 100644
--- a/drivers/char/watchdog/pcwd.c
+++ b/drivers/char/watchdog/pcwd.c
@@ -49,29 +49,37 @@
  *      More info available at http://www.berkprod.com/ or http://www.pcwatchdog.com/
  */
 
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/jiffies.h>
-#include <linux/config.h>
-#include <linux/wait.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-#include <linux/watchdog.h>
-#include <linux/notifier.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/reboot.h>
+#include <linux/config.h>       /* For CONFIG_WATCHDOG_NOWAYOUT/... */
+#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/errno.h>        /* For the -ENODEV/... values */
+#include <linux/kernel.h>       /* For printk/panic/... */
+#include <linux/delay.h>        /* For mdelay function */
+#include <linux/timer.h>        /* For timer related operations */
+#include <linux/jiffies.h>      /* For jiffies stuff */
+#include <linux/miscdevice.h>   /* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */
+#include <linux/watchdog.h>     /* For the watchdog specific items */
+#include <linux/notifier.h>     /* For notifier support */
+#include <linux/reboot.h>       /* For reboot_notifier stuff */
+#include <linux/init.h>         /* For __init/__exit/... */
+#include <linux/fs.h>           /* For file operations */
+#include <linux/ioport.h>       /* For io-port access */
+#include <linux/spinlock.h>     /* For spin_lock/spin_unlock/... */
 #include <linux/sched.h>        /* TASK_INTERRUPTIBLE, set_current_state() and friends */
-#include <asm/uaccess.h>
-#include <asm/io.h>
+#include <linux/slab.h>         /* For kmalloc */
 
-#define WD_VER                  "1.16 (06/12/2004)"
-#define PFX                     "pcwd: "
+#include <asm/uaccess.h>        /* For copy_to_user/put_user/... */
+#include <asm/io.h>             /* For inb/outb/... */
+
+/* Module and version information */
+#define WATCHDOG_VERSION "1.16"
+#define WATCHDOG_DATE "03 Jan 2006"
+#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 " (" WATCHDOG_DATE ")\n"
+#define WD_VER WATCHDOG_VERSION " (" WATCHDOG_DATE ")"
 
 /*
  * It should be noted that PCWD_REVISION_B was removed because A and B
@@ -85,36 +93,38 @@
 
 /*
  * These are the defines that describe the control status bits for the
- * PC Watchdog card, revision A.
- */
+ * PCI-PC Watchdog card.
+*/
+/* Port 1 : Control Status #1 for the PC Watchdog card, revision A. */
 #define WD_WDRST                0x01    /* Previously reset state */
 #define WD_T110                 0x02    /* Temperature overheat sense */
 #define WD_HRTBT                0x04    /* Heartbeat sense */
 #define WD_RLY2                 0x08    /* External relay triggered */
 #define WD_SRLY2                0x80    /* Software external relay triggered */
-
-/*
- * These are the defines that describe the control status bits for the
- * PC Watchdog card, revision C.
- */
+/* Port 1 : Control Status #1 for the PC Watchdog card, revision C. */
 #define WD_REVC_WTRP            0x01    /* Watchdog Trip status */
 #define WD_REVC_HRBT            0x02    /* Watchdog Heartbeat */
 #define WD_REVC_TTRP            0x04    /* Temperature Trip status */
+/* Port 2 : Control Status #2 */
+#define WD_WDIS                 0x10    /* Watchdog Disabled */
+#define WD_ENTP                 0x20    /* Watchdog Enable Temperature Trip */
+#define WD_SSEL                 0x40    /* Watchdog Switch Select (1:SW1 <-> 0:SW2) */
+#define WD_WCMD                 0x80    /* Watchdog Command Mode */
 
 /* max. time we give an ISA watchdog card to process a command */
 /* 500ms for each 4 bit response (according to spec.) */
 #define ISA_COMMAND_TIMEOUT     1000
 
 /* Watchdog's internal commands */
-#define CMD_ISA_IDLE                    0x00
-#define CMD_ISA_VERSION_INTEGER         0x01
-#define CMD_ISA_VERSION_TENTH           0x02
-#define CMD_ISA_VERSION_HUNDRETH        0x03
-#define CMD_ISA_VERSION_MINOR           0x04
-#define CMD_ISA_SWITCH_SETTINGS         0x05
-#define CMD_ISA_DELAY_TIME_2SECS        0x0A
-#define CMD_ISA_DELAY_TIME_4SECS        0x0B
-#define CMD_ISA_DELAY_TIME_8SECS        0x0C
+#define CMD_ISA_IDLE                    0x00
+#define CMD_ISA_VERSION_INTEGER         0x01
+#define CMD_ISA_VERSION_TENTH           0x02
+#define CMD_ISA_VERSION_HUNDRETH        0x03
+#define CMD_ISA_VERSION_MINOR           0x04
+#define CMD_ISA_SWITCH_SETTINGS         0x05
+#define CMD_ISA_DELAY_TIME_2SECS        0x0A
+#define CMD_ISA_DELAY_TIME_4SECS        0x0B
+#define CMD_ISA_DELAY_TIME_8SECS        0x0C
 
 /*
  * We are using an kernel timer to do the pinging of the watchdog
@@ -130,15 +140,17 @@ static int cards_found;
 /* internal variables */
 static atomic_t open_allowed = ATOMIC_INIT(1);
 static char expect_close;
-static struct timer_list timer;
-static unsigned long next_heartbeat;
 static int temp_panic;
-static int revision;                    /* The card's revision */
-static int supports_temp;               /* Wether or not the card has a temperature device */
-static int command_mode;                /* Wether or not the card is in command mode */
-static int initial_status;              /* The card's boot status */
-static int current_readport;            /* The cards I/O address */
-static spinlock_t io_lock;
+static struct {                         /* this is private data for each ISA-PC watchdog card */
+        int revision;                   /* The card's revision */
+        int supports_temp;              /* Wether or not the card has a temperature device */
+        int command_mode;               /* Wether or not the card is in command mode */
+        int boot_status;                /* The card's boot status */
+        int io_addr;                    /* The cards I/O address */
+        spinlock_t io_lock;             /* the lock for io operations */
+        struct timer_list timer;        /* The timer that pings the watchdog */
+        unsigned long next_heartbeat;   /* the next_heartbeat for the timer */
+} pcwd_private;
 
 /* module parameters */
 #define WATCHDOG_HEARTBEAT 60           /* 60 sec default heartbeat */
@@ -161,14 +173,14 @@ static int send_isa_command(int cmd)
         int port0, last_port0;  /* Double read for stabilising */
 
         /* The WCMD bit must be 1 and the command is only 4 bits in size */
-        control_status = (cmd & 0x0F) | 0x80;
-        outb_p(control_status, current_readport + 2);
+        control_status = (cmd & 0x0F) | WD_WCMD;
+        outb_p(control_status, pcwd_private.io_addr + 2);
         udelay(ISA_COMMAND_TIMEOUT);
 
-        port0 = inb_p(current_readport);
+        port0 = inb_p(pcwd_private.io_addr);
         for (i = 0; i < 25; ++i) {
                 last_port0 = port0;
-                port0 = inb_p(current_readport);
+                port0 = inb_p(pcwd_private.io_addr);
 
                 if (port0 == last_port0)
                         break;  /* Data is stable */
@@ -184,7 +196,7 @@ static int set_command_mode(void)
         int i, found=0, count=0;
 
         /* Set the card into command mode */
-        spin_lock(&io_lock);
+        spin_lock(&pcwd_private.io_lock);
         while ((!found) && (count < 3)) {
                 i = send_isa_command(CMD_ISA_IDLE);
 
@@ -192,15 +204,15 @@ static int set_command_mode(void)
                         found = 1;
                 else if (i == 0xF3) {
                         /* Card does not like what we've done to it */
-                        outb_p(0x00, current_readport + 2);
+                        outb_p(0x00, pcwd_private.io_addr + 2);
                         udelay(1200);   /* Spec says wait 1ms */
-                        outb_p(0x00, current_readport + 2);
+                        outb_p(0x00, pcwd_private.io_addr + 2);
                         udelay(ISA_COMMAND_TIMEOUT);
                 }
                 count++;
         }
-        spin_unlock(&io_lock);
-        command_mode = found;
+        spin_unlock(&pcwd_private.io_lock);
+        pcwd_private.command_mode = found;
 
         return(found);
 }
@@ -208,12 +220,95 @@ static int set_command_mode(void)
 static void unset_command_mode(void)
 {
         /* Set the card into normal mode */
-        spin_lock(&io_lock);
-        outb_p(0x00, current_readport + 2);
+        spin_lock(&pcwd_private.io_lock);
+        outb_p(0x00, pcwd_private.io_addr + 2);
         udelay(ISA_COMMAND_TIMEOUT);
-        spin_unlock(&io_lock);
+        spin_unlock(&pcwd_private.io_lock);
+
+        pcwd_private.command_mode = 0;
+}
+
+static inline void pcwd_check_temperature_support(void)
+{
+        if (inb(pcwd_private.io_addr) != 0xF0)
+                pcwd_private.supports_temp = 1;
+}
+
+static inline char *get_firmware(void)
+{
+        int one, ten, hund, minor;
+        char *ret;
+
+        ret = kmalloc(6, GFP_KERNEL);
+        if(ret == NULL)
+                return NULL;
+
+        if (set_command_mode()) {
+                one = send_isa_command(CMD_ISA_VERSION_INTEGER);
+                ten = send_isa_command(CMD_ISA_VERSION_TENTH);
+                hund = send_isa_command(CMD_ISA_VERSION_HUNDRETH);
+                minor = send_isa_command(CMD_ISA_VERSION_MINOR);
+                sprintf(ret, "%c.%c%c%c", one, ten, hund, minor);
+        }
+        else
+                sprintf(ret, "ERROR");
+
+        unset_command_mode();
+        return(ret);
+}
+
+static inline int pcwd_get_option_switches(void)
+{
+        int option_switches=0;
+
+        if (set_command_mode()) {
+                /* Get switch settings */
+                option_switches = send_isa_command(CMD_ISA_SWITCH_SETTINGS);
+        }
+
+        unset_command_mode();
+        return(option_switches);
+}
+
+static void pcwd_show_card_info(void)
+{
+        char *firmware;
+        int option_switches;
+
+        /* 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);
+        else if (pcwd_private.revision == PCWD_REVISION_C) {
+                firmware = get_firmware();
+                printk(KERN_INFO PFX "ISA-PC Watchdog (REV.C) detected at port 0x%04x (Firmware version: %s)\n",
+                        pcwd_private.io_addr, firmware);
+                kfree(firmware);
+                option_switches = pcwd_get_option_switches();
+                printk(KERN_INFO PFX "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"));
+
+                /* Reprogram internal heartbeat to 2 seconds */
+                if (set_command_mode()) {
+                        send_isa_command(CMD_ISA_DELAY_TIME_2SECS);
+                        unset_command_mode();
+                }
+        }
+
+        if (pcwd_private.supports_temp)
+                printk(KERN_INFO PFX "Temperature Option Detected\n");
+
+        if (pcwd_private.boot_status & WDIOF_CARDRESET)
+                printk(KERN_INFO PFX "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");
+        }
 
-        command_mode = 0;
+        if (pcwd_private.boot_status == 0)
+                printk(KERN_INFO PFX "No previous trip detected - Cold boot or reset\n");
 }
 
 static void pcwd_timer_ping(unsigned long data)
@@ -222,25 +317,25 @@ static void pcwd_timer_ping(unsigned long data)
 
         /* If we got a heartbeat pulse within the WDT_INTERVAL
          * we agree to ping the WDT */
-        if(time_before(jiffies, next_heartbeat)) {
+        if(time_before(jiffies, pcwd_private.next_heartbeat)) {
                 /* Ping the watchdog */
-                spin_lock(&io_lock);
-                if (revision == PCWD_REVISION_A) {
+                spin_lock(&pcwd_private.io_lock);
+                if (pcwd_private.revision == PCWD_REVISION_A) {
                         /*  Rev A cards are reset by setting the WD_WDRST bit in register 1 */
-                        wdrst_stat = inb_p(current_readport);
+                        wdrst_stat = inb_p(pcwd_private.io_addr);
                         wdrst_stat &= 0x0F;
                         wdrst_stat |= WD_WDRST;
 
-                        outb_p(wdrst_stat, current_readport + 1);
+                        outb_p(wdrst_stat, pcwd_private.io_addr + 1);
                 } else {
                         /* Re-trigger watchdog by writing to port 0 */
-                        outb_p(0x00, current_readport);
+                        outb_p(0x00, pcwd_private.io_addr);
                 }
 
                 /* Re-set the timer interval */
-                mod_timer(&timer, jiffies + WDT_INTERVAL);
+                mod_timer(&pcwd_private.timer, jiffies + WDT_INTERVAL);
 
-                spin_unlock(&io_lock);
+                spin_unlock(&pcwd_private.io_lock);
         } else {
                 printk(KERN_WARNING PFX "Heartbeat lost! Will not ping the watchdog\n");
         }
@@ -250,19 +345,19 @@ static int pcwd_start(void)
 {
         int stat_reg;
 
-        next_heartbeat = jiffies + (heartbeat * HZ);
+        pcwd_private.next_heartbeat = jiffies + (heartbeat * HZ);
 
         /* Start the timer */
-        mod_timer(&timer, jiffies + WDT_INTERVAL);
+        mod_timer(&pcwd_private.timer, jiffies + WDT_INTERVAL);
 
         /* Enable the port */
-        if (revision == PCWD_REVISION_C) {
-                spin_lock(&io_lock);
-                outb_p(0x00, current_readport + 3);
+        if (pcwd_private.revision == PCWD_REVISION_C) {
+                spin_lock(&pcwd_private.io_lock);
+                outb_p(0x00, pcwd_private.io_addr + 3);
                 udelay(ISA_COMMAND_TIMEOUT);
-                stat_reg = inb_p(current_readport + 2);
-                spin_unlock(&io_lock);
-                if (stat_reg & 0x10) {
+                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");
                         return -EIO;
                 }
@@ -275,18 +370,18 @@ static int pcwd_stop(void)
         int stat_reg;
 
         /* Stop the timer */
-        del_timer(&timer);
+        del_timer(&pcwd_private.timer);
 
         /*  Disable the board  */
-        if (revision == PCWD_REVISION_C) {
-                spin_lock(&io_lock);
-                outb_p(0xA5, current_readport + 3);
+        if (pcwd_private.revision == PCWD_REVISION_C) {
+                spin_lock(&pcwd_private.io_lock);
+                outb_p(0xA5, pcwd_private.io_addr + 3);
                 udelay(ISA_COMMAND_TIMEOUT);
-                outb_p(0xA5, current_readport + 3);
+                outb_p(0xA5, pcwd_private.io_addr + 3);
                 udelay(ISA_COMMAND_TIMEOUT);
-                stat_reg = inb_p(current_readport + 2);
-                spin_unlock(&io_lock);
-                if ((stat_reg & 0x10) == 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");
                         return -EIO;
                 }
@@ -297,7 +392,7 @@ static int pcwd_stop(void)
 static int pcwd_keepalive(void)
 {
         /* user land ping */
-        next_heartbeat = jiffies + (heartbeat * HZ);
+        pcwd_private.next_heartbeat = jiffies + (heartbeat * HZ);
         return 0;
 }
 
@@ -315,23 +410,23 @@ static int pcwd_get_status(int *status)
         int card_status;
 
         *status=0;
-        spin_lock(&io_lock);
-        if (revision == PCWD_REVISION_A)
+        spin_lock(&pcwd_private.io_lock);
+        if (pcwd_private.revision == PCWD_REVISION_A)
                 /* Rev A cards return status information from
                  * the base register, which is used for the
                  * temperature in other cards. */
-                card_status = inb(current_readport);
+                card_status = inb(pcwd_private.io_addr);
         else {
                 /* Rev C cards return card status in the base
                  * address + 1 register. And use different bits
                  * to indicate a card initiated reset, and an
                  * over-temperature condition. And the reboot
                  * status can be reset. */
-                card_status = inb(current_readport + 1);
+                card_status = inb(pcwd_private.io_addr + 1);
         }
-        spin_unlock(&io_lock);
+        spin_unlock(&pcwd_private.io_lock);
 
-        if (revision == PCWD_REVISION_A) {
+        if (pcwd_private.revision == PCWD_REVISION_A) {
                 if (card_status & WD_WDRST)
                         *status |= WDIOF_CARDRESET;
 
@@ -360,10 +455,10 @@ static int pcwd_get_status(int *status)
 
 static int pcwd_clear_status(void)
 {
-        if (revision == PCWD_REVISION_C) {
-                spin_lock(&io_lock);
-                outb_p(0x00, current_readport + 1); /* clear reset status */
-                spin_unlock(&io_lock);
+        if (pcwd_private.revision == PCWD_REVISION_C) {
+                spin_lock(&pcwd_private.io_lock);
+                outb_p(0x00, pcwd_private.io_addr + 1); /* clear reset status */
+                spin_unlock(&pcwd_private.io_lock);
         }
         return 0;
 }
@@ -371,20 +466,20 @@ static int pcwd_clear_status(void)
 static int pcwd_get_temperature(int *temperature)
 {
         /* check that port 0 gives temperature info and no command results */
-        if (command_mode)
+        if (pcwd_private.command_mode)
                 return -1;
 
         *temperature = 0;
-        if (!supports_temp)
+        if (!pcwd_private.supports_temp)
                 return -ENODEV;
 
         /*
          * Convert celsius to fahrenheit, since this was
          * the decided 'standard' for this return value.
          */
-        spin_lock(&io_lock);
-        *temperature = ((inb(current_readport)) * 9 / 5) + 32;
-        spin_unlock(&io_lock);
+        spin_lock(&pcwd_private.io_lock);
+        *temperature = ((inb(pcwd_private.io_addr)) * 9 / 5) + 32;
+        spin_unlock(&pcwd_private.io_lock);
 
         return 0;
 }
@@ -425,7 +520,7 @@ static int pcwd_ioctl(struct inode *inode, struct file *file,
                 return put_user(status, argp);
 
         case WDIOC_GETBOOTSTATUS:
-                return put_user(initial_status, argp);
+                return put_user(pcwd_private.boot_status, argp);
 
         case WDIOC_GETTEMP:
                 if (pcwd_get_temperature(&temperature))
@@ -434,7 +529,7 @@ static int pcwd_ioctl(struct inode *inode, struct file *file,
                 return put_user(temperature, argp);
 
         case WDIOC_SETOPTIONS:
-                if (revision == PCWD_REVISION_C)
+                if (pcwd_private.revision == PCWD_REVISION_C)
                 {
                         if(copy_from_user(&rv, argp, sizeof(int)))
                                 return -EFAULT;
@@ -550,7 +645,7 @@ static ssize_t pcwd_temp_read(struct file *file, char __user *buf, size_t count,
 
 static int pcwd_temp_open(struct inode *inode, struct file *file)
 {
-        if (!supports_temp)
+        if (!pcwd_private.supports_temp)
                 return -ENODEV;
 
         return nonseekable_open(inode, file);
@@ -616,68 +711,24 @@ static struct notifier_block pcwd_notifier = {
  *      Init & exit routines
  */
 
-static inline void get_support(void)
-{
-        if (inb(current_readport) != 0xF0)
-                supports_temp = 1;
-}
-
 static inline int get_revision(void)
 {
         int r = PCWD_REVISION_C;
 
-        spin_lock(&io_lock);
+        spin_lock(&pcwd_private.io_lock);
         /* REV A cards use only 2 io ports; test
          * presumes a floating bus reads as 0xff. */
-        if ((inb(current_readport + 2) == 0xFF) ||
-            (inb(current_readport + 3) == 0xFF))
+        if ((inb(pcwd_private.io_addr + 2) == 0xFF) ||
+            (inb(pcwd_private.io_addr + 3) == 0xFF))
                 r=PCWD_REVISION_A;
-        spin_unlock(&io_lock);
+        spin_unlock(&pcwd_private.io_lock);
 
         return r;
 }
 
-static inline char *get_firmware(void)
-{
-        int one, ten, hund, minor;
-        char *ret;
-
-        ret = kmalloc(6, GFP_KERNEL);
-        if(ret == NULL)
-                return NULL;
-
-        if (set_command_mode()) {
-                one = send_isa_command(CMD_ISA_VERSION_INTEGER);
-                ten = send_isa_command(CMD_ISA_VERSION_TENTH);
-                hund = send_isa_command(CMD_ISA_VERSION_HUNDRETH);
-                minor = send_isa_command(CMD_ISA_VERSION_MINOR);
-                sprintf(ret, "%c.%c%c%c", one, ten, hund, minor);
-        }
-        else
-                sprintf(ret, "ERROR");
-
-        unset_command_mode();
-        return(ret);
-}
-
-static inline int get_option_switches(void)
-{
-        int rv=0;
-
-        if (set_command_mode()) {
-                /* Get switch settings */
-                rv = send_isa_command(CMD_ISA_SWITCH_SETTINGS);
-        }
-
-        unset_command_mode();
-        return(rv);
-}
-
 static int __devinit pcwatchdog_init(int base_addr)
 {
         int ret;
-        char *firmware;
-        int option_switches;
 
         cards_found++;
         if (cards_found == 1)
@@ -692,104 +743,66 @@ static int __devinit pcwatchdog_init(int base_addr)
                 printk(KERN_ERR PFX "No I/O-Address for card detected\n");
                 return -ENODEV;
         }
-        current_readport = base_addr;
+        pcwd_private.io_addr = base_addr;
 
         /* Check card's revision */
-        revision = get_revision();
+        pcwd_private.revision = get_revision();
 
-        if (!request_region(current_readport, (revision == PCWD_REVISION_A) ? 2 : 4, "PCWD")) {
+        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",
-                        current_readport);
-                current_readport = 0x0000;
+                        pcwd_private.io_addr);
+                pcwd_private.io_addr = 0x0000;
                 return -EIO;
         }
 
         /* Initial variables */
-        supports_temp = 0;
+        pcwd_private.supports_temp = 0;
         temp_panic = 0;
-        initial_status = 0x0000;
+        pcwd_private.boot_status = 0x0000;
 
         /* get the boot_status */
-        pcwd_get_status(&initial_status);
+        pcwd_get_status(&pcwd_private.boot_status);
 
         /* clear the "card caused reboot" flag */
         pcwd_clear_status();
 
-        init_timer(&timer);
-        timer.function = pcwd_timer_ping;
-        timer.data = 0;
+        init_timer(&pcwd_private.timer);
+        pcwd_private.timer.function = pcwd_timer_ping;
+        pcwd_private.timer.data = 0;
 
         /*  Disable the board  */
         pcwd_stop();
 
         /*  Check whether or not the card supports the temperature device */
-        get_support();
-
-        /* Get some extra info from the hardware (in command/debug/diag mode) */
-        if (revision == PCWD_REVISION_A)
-                printk(KERN_INFO PFX "ISA-PC Watchdog (REV.A) detected at port 0x%04x\n", current_readport);
-        else if (revision == PCWD_REVISION_C) {
-                firmware = get_firmware();
-                printk(KERN_INFO PFX "ISA-PC Watchdog (REV.C) detected at port 0x%04x (Firmware version: %s)\n",
-                        current_readport, firmware);
-                kfree(firmware);
-                option_switches = get_option_switches();
-                printk(KERN_INFO PFX "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"));
-
-                /* Reprogram internal heartbeat to 2 seconds */
-                if (set_command_mode()) {
-                        send_isa_command(CMD_ISA_DELAY_TIME_2SECS);
-                        unset_command_mode();
-                }
-        } else {
-                /* Should NEVER happen, unless get_revision() fails. */
-                printk(KERN_INFO PFX "Unable to get revision\n");
-                release_region(current_readport, (revision == PCWD_REVISION_A) ? 2 : 4);
-                current_readport = 0x0000;
-                return -1;
-        }
+        pcwd_check_temperature_support();
 
-        if (supports_temp)
-                printk(KERN_INFO PFX "Temperature Option Detected\n");
-
-        if (initial_status & WDIOF_CARDRESET)
-                printk(KERN_INFO PFX "Previous reboot was caused by the card\n");
-
-        if (initial_status & WDIOF_OVERHEAT) {
-                printk(KERN_EMERG PFX "Card senses a CPU Overheat. Panicking!\n");
-                printk(KERN_EMERG PFX "CPU Overheat\n");
-        }
-
-        if (initial_status == 0)
-                printk(KERN_INFO PFX "No previous trip detected - Cold boot or reset\n");
+        /* Show info about the card itself */
+        pcwd_show_card_info();
 
         /* Check that the heartbeat value is within it's range ; 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);
+        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);
         }
 
         ret = register_reboot_notifier(&pcwd_notifier);
         if (ret) {
                 printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
                         ret);
-                release_region(current_readport, (revision == PCWD_REVISION_A) ? 2 : 4);
-                current_readport = 0x0000;
+                release_region(pcwd_private.io_addr, (pcwd_private.revision == PCWD_REVISION_A) ? 2 : 4);
+                pcwd_private.io_addr = 0x0000;
                 return ret;
         }
 
-        if (supports_temp) {
+        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);
                         unregister_reboot_notifier(&pcwd_notifier);
-                        release_region(current_readport, (revision == PCWD_REVISION_A) ? 2 : 4);
-                        current_readport = 0x0000;
+                        release_region(pcwd_private.io_addr, (pcwd_private.revision == PCWD_REVISION_A) ? 2 : 4);
+                        pcwd_private.io_addr = 0x0000;
                         return ret;
                 }
         }
@@ -798,11 +811,11 @@ static int __devinit pcwatchdog_init(int base_addr)
         if (ret) {
                 printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
                         WATCHDOG_MINOR, ret);
-                if (supports_temp)
+                if (pcwd_private.supports_temp)
                         misc_deregister(&temp_miscdev);
                 unregister_reboot_notifier(&pcwd_notifier);
-                release_region(current_readport, (revision == PCWD_REVISION_A) ? 2 : 4);
-                current_readport = 0x0000;
+                release_region(pcwd_private.io_addr, (pcwd_private.revision == PCWD_REVISION_A) ? 2 : 4);
+                pcwd_private.io_addr = 0x0000;
                 return ret;
         }
 
@@ -820,11 +833,12 @@ static void __devexit pcwatchdog_exit(void)
 
         /* Deregister */
         misc_deregister(&pcwd_miscdev);
-        if (supports_temp)
+        if (pcwd_private.supports_temp)
                 misc_deregister(&temp_miscdev);
         unregister_reboot_notifier(&pcwd_notifier);
-        release_region(current_readport, (revision == PCWD_REVISION_A) ? 2 : 4);
-        current_readport = 0x0000;
+        release_region(pcwd_private.io_addr, (pcwd_private.revision == PCWD_REVISION_A) ? 2 : 4);
+        pcwd_private.io_addr = 0x0000;
+        cards_found--;
 }
 
 /*
@@ -887,7 +901,7 @@ static int __init pcwd_init_module(void)
 {
         int i, found = 0;
 
-        spin_lock_init(&io_lock);
+        spin_lock_init(&pcwd_private.io_lock);
 
         for (i = 0; pcwd_ioports[i] != 0; i++) {
                 if (pcwd_checkcard(pcwd_ioports[i])) {
@@ -906,7 +920,7 @@ static int __init pcwd_init_module(void)
 
 static void __exit pcwd_cleanup_module(void)
 {
-        if (current_readport)
+        if (pcwd_private.io_addr)
                 pcwatchdog_exit();
         return;
 }
diff --git a/drivers/char/watchdog/sa1100_wdt.c b/drivers/char/watchdog/sa1100_wdt.c
index b474ea52d6e8..522a9370db94 100644
--- a/drivers/char/watchdog/sa1100_wdt.c
+++ b/drivers/char/watchdog/sa1100_wdt.c
@@ -93,23 +93,25 @@ static int sa1100dog_ioctl(struct inode *inode, struct file *file,
 {
         int ret = -ENOIOCTLCMD;
         int time;
+        void __user *argp = (void __user *)arg;
+        int __user *p = argp;
 
         switch (cmd) {
         case WDIOC_GETSUPPORT:
-                ret = copy_to_user((struct watchdog_info __user *)arg, &ident,
+                ret = copy_to_user(argp, &ident,
                                    sizeof(ident)) ? -EFAULT : 0;
                 break;
 
         case WDIOC_GETSTATUS:
-                ret = put_user(0, (int __user *)arg);
+                ret = put_user(0, p);
                 break;
 
         case WDIOC_GETBOOTSTATUS:
-                ret = put_user(boot_status, (int __user *)arg);
+                ret = put_user(boot_status, p);
                 break;
 
         case WDIOC_SETTIMEOUT:
-                ret = get_user(time, (int __user *)arg);
+                ret = get_user(time, p);
                 if (ret)
                         break;
 
@@ -123,7 +125,7 @@ static int sa1100dog_ioctl(struct inode *inode, struct file *file,
                 /*fall through*/
 
         case WDIOC_GETTIMEOUT:
-                ret = put_user(pre_margin / OSCR_FREQ, (int __user *)arg);
+                ret = put_user(pre_margin / OSCR_FREQ, p);
                 break;
 
         case WDIOC_KEEPALIVE: