[PATCH 18/57] iTCO: unlocked_ioctl, coding style and cleanup

From: Alan Cox
Date: Mon May 19 2008 - 09:26:08 EST

From: Alan Cox <alan@xxxxxxxxxx>


---

drivers/watchdog/iTCO_vendor.h | 15 ++
drivers/watchdog/iTCO_vendor_support.c | 53 +++---
drivers/watchdog/iTCO_wdt.c | 294 ++++++++++++++++----------------
3 files changed, 188 insertions(+), 174 deletions(-)
create mode 100644 drivers/watchdog/iTCO_vendor.h


diff --git a/drivers/watchdog/iTCO_vendor.h b/drivers/watchdog/iTCO_vendor.h
new file mode 100644
index 0000000..9e27e64
--- /dev/null
+++ b/drivers/watchdog/iTCO_vendor.h
@@ -0,0 +1,15 @@
+/* iTCO Vendor Specific Support hooks */
+#ifdef CONFIG_ITCO_VENDOR_SUPPORT
+extern void iTCO_vendor_pre_start(unsigned long, unsigned int);
+extern void iTCO_vendor_pre_stop(unsigned long);
+extern void iTCO_vendor_pre_keepalive(unsigned long, unsigned int);
+extern void iTCO_vendor_pre_set_heartbeat(unsigned int);
+extern int iTCO_vendor_check_noreboot_on(void);
+#else
+#define iTCO_vendor_pre_start(acpibase, heartbeat) {}
+#define iTCO_vendor_pre_stop(acpibase) {}
+#define iTCO_vendor_pre_keepalive(acpibase, heartbeat) {}
+#define iTCO_vendor_pre_set_heartbeat(heartbeat) {}
+#define iTCO_vendor_check_noreboot_on() 1
+ /* 1=check noreboot; 0=don't check */
+#endif
diff --git a/drivers/watchdog/iTCO_vendor_support.c b/drivers/watchdog/iTCO_vendor_support.c
index cafc465..09e9534 100644
--- a/drivers/watchdog/iTCO_vendor_support.c
+++ b/drivers/watchdog/iTCO_vendor_support.c
@@ -32,7 +32,9 @@
#include <linux/init.h> /* For __init/__exit/... */
#include <linux/ioport.h> /* For io-port access */

-#include <asm/io.h> /* For inb/outb/... */
+#include <linux/io.h> /* For inb/outb/... */
+
+#include "iTCO_vendor.h"

/* iTCO defines */
#define SMI_EN acpibase + 0x30 /* SMI Control and Enable Register */
@@ -40,10 +42,12 @@
#define TCO1_STS TCOBASE + 0x04 /* TCO1 Status Register */

/* List of vendor support modes */
-#define SUPERMICRO_OLD_BOARD 1 /* SuperMicro Pentium 3 Era 370SSE+-OEM1/P3TSSE */
-#define SUPERMICRO_NEW_BOARD 2 /* SuperMicro Pentium 4 / Xeon 4 / EMT64T Era Systems */
+/* SuperMicro Pentium 3 Era 370SSE+-OEM1/P3TSSE */
+#define SUPERMICRO_OLD_BOARD 1
+/* SuperMicro Pentium 4 / Xeon 4 / EMT64T Era Systems */
+#define SUPERMICRO_NEW_BOARD 2

-static int vendorsupport = 0;
+static int vendorsupport;
module_param(vendorsupport, int, 0);
MODULE_PARM_DESC(vendorsupport, "iTCO vendor specific support mode, default=0 (none), 1=SuperMicro Pent3, 2=SuperMicro Pent4+");

@@ -143,34 +147,35 @@ static void supermicro_old_pre_keepalive(unsigned long acpibase)
*/

/* I/O Port's */
-#define SM_REGINDEX 0x2e /* SuperMicro ICH4+ Register Index */
-#define SM_DATAIO 0x2f /* SuperMicro ICH4+ Register Data I/O */
+#define SM_REGINDEX 0x2e /* SuperMicro ICH4+ Register Index */
+#define SM_DATAIO 0x2f /* SuperMicro ICH4+ Register Data I/O */

/* Control Register's */
-#define SM_CTLPAGESW 0x07 /* SuperMicro ICH4+ Control Page Switch */
-#define SM_CTLPAGE 0x08 /* SuperMicro ICH4+ Control Page Num */
+#define SM_CTLPAGESW 0x07 /* SuperMicro ICH4+ Control Page Switch */
+#define SM_CTLPAGE 0x08 /* SuperMicro ICH4+ Control Page Num */

-#define SM_WATCHENABLE 0x30 /* Watchdog enable: Bit 0: 0=off, 1=on */
+#define SM_WATCHENABLE 0x30 /* Watchdog enable: Bit 0: 0=off, 1=on */

-#define SM_WATCHPAGE 0x87 /* Watchdog unlock control page */
+#define SM_WATCHPAGE 0x87 /* Watchdog unlock control page */

-#define SM_ENDWATCH 0xAA /* Watchdog lock control page */
+#define SM_ENDWATCH 0xAA /* Watchdog lock control page */

-#define SM_COUNTMODE 0xf5 /* Watchdog count mode select */
- /* (Bit 3: 0 = seconds, 1 = minutes */
+#define SM_COUNTMODE 0xf5 /* Watchdog count mode select */
+ /* (Bit 3: 0 = seconds, 1 = minutes */

-#define SM_WATCHTIMER 0xf6 /* 8-bits, Watchdog timer counter (RW) */
+#define SM_WATCHTIMER 0xf6 /* 8-bits, Watchdog timer counter (RW) */

-#define SM_RESETCONTROL 0xf7 /* Watchdog reset control */
- /* Bit 6: timer is reset by kbd interrupt */
- /* Bit 7: timer is reset by mouse interrupt */
+#define SM_RESETCONTROL 0xf7 /* Watchdog reset control */
+ /* Bit 6: timer is reset by kbd interrupt */
+ /* Bit 7: timer is reset by mouse interrupt */

static void supermicro_new_unlock_watchdog(void)
{
- outb(SM_WATCHPAGE, SM_REGINDEX); /* Write 0x87 to port 0x2e twice */
+ /* Write 0x87 to port 0x2e twice */
outb(SM_WATCHPAGE, SM_REGINDEX);
-
- outb(SM_CTLPAGESW, SM_REGINDEX); /* Switch to watchdog control page */
+ outb(SM_WATCHPAGE, SM_REGINDEX);
+ /* Switch to watchdog control page */
+ outb(SM_CTLPAGESW, SM_REGINDEX);
outb(SM_CTLPAGE, SM_DATAIO);
}

@@ -192,7 +197,7 @@ static void supermicro_new_pre_start(unsigned int heartbeat)
outb(val, SM_DATAIO);

/* Write heartbeat interval to WDOG */
- outb (SM_WATCHTIMER, SM_REGINDEX);
+ outb(SM_WATCHTIMER, SM_REGINDEX);
outb((heartbeat & 255), SM_DATAIO);

/* Make sure keyboard/mouse interrupts don't interfere */
@@ -277,7 +282,7 @@ EXPORT_SYMBOL(iTCO_vendor_pre_set_heartbeat);

int iTCO_vendor_check_noreboot_on(void)
{
- switch(vendorsupport) {
+ switch (vendorsupport) {
case SUPERMICRO_OLD_BOARD:
return 0;
default:
@@ -288,13 +293,13 @@ EXPORT_SYMBOL(iTCO_vendor_check_noreboot_on);

static int __init iTCO_vendor_init_module(void)
{
- printk (KERN_INFO PFX "vendor-support=%d\n", vendorsupport);
+ printk(KERN_INFO PFX "vendor-support=%d\n", vendorsupport);
return 0;
}

static void __exit iTCO_vendor_exit_module(void)
{
- printk (KERN_INFO PFX "Module Unloaded\n");
+ printk(KERN_INFO PFX "Module Unloaded\n");
}

module_init(iTCO_vendor_init_module);
diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
index a0e6809..6bcfbea 100644
--- a/drivers/watchdog/iTCO_wdt.c
+++ b/drivers/watchdog/iTCO_wdt.c
@@ -65,7 +65,8 @@
#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/miscdevice.h> /* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */
+#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV
+ (WATCHDOG_MINOR) */
#include <linux/watchdog.h> /* For the watchdog specific items */
#include <linux/init.h> /* For __init/__exit/... */
#include <linux/fs.h> /* For file operations */
@@ -73,9 +74,10 @@
#include <linux/pci.h> /* For pci functions */
#include <linux/ioport.h> /* For io-port access */
#include <linux/spinlock.h> /* For spin_lock/spin_unlock/... */
+#include <linux/uaccess.h> /* For copy_to_user/put_user/... */
+#include <linux/io.h> /* For inb/outb/... */

-#include <asm/uaccess.h> /* For copy_to_user/put_user/... */
-#include <asm/io.h> /* For inb/outb/... */
+#include "iTCO_vendor.h"

/* TCO related info */
enum iTCO_chipsets {
@@ -137,7 +139,7 @@ static struct {
{"ICH9R", 2},
{"ICH9DH", 2},
{"631xESB/632xESB", 2},
- {NULL,0}
+ {NULL, 0}
};

#define ITCO_PCI_DEVICE(dev, data) \
@@ -156,31 +158,31 @@ static struct {
* functions that probably will be registered by other drivers.
*/
static struct pci_device_id iTCO_wdt_pci_tbl[] = {
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801AA_0, TCO_ICH )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801AB_0, TCO_ICH0 )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801BA_0, TCO_ICH2 )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801BA_10, TCO_ICH2M )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801CA_0, TCO_ICH3 )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801CA_12, TCO_ICH3M )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801DB_0, TCO_ICH4 )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801DB_12, TCO_ICH4M )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801E_0, TCO_CICH )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801EB_0, TCO_ICH5 )},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801AA_0, TCO_ICH)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801AB_0, TCO_ICH0)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801BA_0, TCO_ICH2)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801BA_10, TCO_ICH2M)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801CA_0, TCO_ICH3)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801CA_12, TCO_ICH3M)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801DB_0, TCO_ICH4)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801DB_12, TCO_ICH4M)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801E_0, TCO_CICH)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801EB_0, TCO_ICH5)},
{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ESB_1, TCO_6300ESB)},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH6_0, TCO_ICH6 )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH6_1, TCO_ICH6M )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH6_2, TCO_ICH6W )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_0, TCO_ICH7 )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_1, TCO_ICH7M )},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH6_0, TCO_ICH6)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH6_1, TCO_ICH6M)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH6_2, TCO_ICH6W)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_0, TCO_ICH7)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_1, TCO_ICH7M)},
{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_31, TCO_ICH7MDH)},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_0, TCO_ICH8 )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_1, TCO_ICH8ME )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_2, TCO_ICH8DH )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_3, TCO_ICH8DO )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_4, TCO_ICH8M )},
- { ITCO_PCI_DEVICE(0x2918, TCO_ICH9 )},
- { ITCO_PCI_DEVICE(0x2916, TCO_ICH9R )},
- { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH9_2, TCO_ICH9DH )},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_0, TCO_ICH8)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_1, TCO_ICH8ME)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_2, TCO_ICH8DH)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_3, TCO_ICH8DO)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_4, TCO_ICH8M)},
+ { ITCO_PCI_DEVICE(0x2918, TCO_ICH9)},
+ { ITCO_PCI_DEVICE(0x2916, TCO_ICH9R)},
+ { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH9_2, TCO_ICH9DH)},
{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ESB2_0, TCO_631XESB)},
{ ITCO_PCI_DEVICE(0x2671, TCO_631XESB)},
{ ITCO_PCI_DEVICE(0x2672, TCO_631XESB)},
@@ -199,13 +201,15 @@ static struct pci_device_id iTCO_wdt_pci_tbl[] = {
{ ITCO_PCI_DEVICE(0x267f, TCO_631XESB)},
{ 0, }, /* End of list */
};
-MODULE_DEVICE_TABLE (pci, iTCO_wdt_pci_tbl);
+MODULE_DEVICE_TABLE(pci, iTCO_wdt_pci_tbl);

/* Address definitions for the TCO */
-#define TCOBASE iTCO_wdt_private.ACPIBASE + 0x60 /* TCO base address */
-#define SMI_EN iTCO_wdt_private.ACPIBASE + 0x30 /* SMI Control and Enable Register */
+/* TCO base address */
+#define TCOBASE iTCO_wdt_private.ACPIBASE + 0x60
+/* SMI Control and Enable Register */
+#define SMI_EN iTCO_wdt_private.ACPIBASE + 0x30

-#define TCO_RLD TCOBASE + 0x00 /* TCO Timer Reload and Current Value */
+#define TCO_RLD TCOBASE + 0x00 /* TCO Timer Reload and Curr. Value */
#define TCOv1_TMR TCOBASE + 0x01 /* TCOv1 Timer Initial Value */
#define TCO_DAT_IN TCOBASE + 0x02 /* TCO Data In Register */
#define TCO_DAT_OUT TCOBASE + 0x03 /* TCO Data Out Register */
@@ -218,15 +222,21 @@ MODULE_DEVICE_TABLE (pci, iTCO_wdt_pci_tbl);
/* internal variables */
static unsigned long is_active;
static char expect_release;
-static struct { /* this is private data for the iTCO_wdt device */
- unsigned int iTCO_version; /* TCO version/generation */
- unsigned long ACPIBASE; /* The cards ACPIBASE address (TCOBASE = ACPIBASE+0x60) */
- unsigned long __iomem *gcs; /* NO_REBOOT flag is Memory-Mapped GCS register bit 5 (TCO version 2) */
- spinlock_t io_lock; /* the lock for io operations */
- struct pci_dev *pdev; /* the PCI-device */
+static struct { /* this is private data for the iTCO_wdt device */
+ /* TCO version/generation */
+ unsigned int iTCO_version;
+ /* The cards ACPIBASE address (TCOBASE = ACPIBASE+0x60) */
+ unsigned long ACPIBASE;
+ /* NO_REBOOT flag is Memory-Mapped GCS register bit 5 (TCO version 2)*/
+ unsigned long __iomem *gcs;
+ /* the lock for io operations */
+ spinlock_t io_lock;
+ /* the PCI-device */
+ struct pci_dev *pdev;
} iTCO_wdt_private;

-static struct platform_device *iTCO_wdt_platform_device; /* the watchdog platform device */
+/* the watchdog platform device */
+static struct platform_device *iTCO_wdt_platform_device;

/* module parameters */
#define WATCHDOG_HEARTBEAT 30 /* 30 sec default heartbeat */
@@ -236,22 +246,9 @@ MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (2<heartbeat<39 (TCO

static int nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, int, 0);
-MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-
-/* iTCO Vendor Specific Support hooks */
-#ifdef CONFIG_ITCO_VENDOR_SUPPORT
-extern void iTCO_vendor_pre_start(unsigned long, unsigned int);
-extern void iTCO_vendor_pre_stop(unsigned long);
-extern void iTCO_vendor_pre_keepalive(unsigned long, unsigned int);
-extern void iTCO_vendor_pre_set_heartbeat(unsigned int);
-extern int iTCO_vendor_check_noreboot_on(void);
-#else
-#define iTCO_vendor_pre_start(acpibase, heartbeat) {}
-#define iTCO_vendor_pre_stop(acpibase) {}
-#define iTCO_vendor_pre_keepalive(acpibase,heartbeat) {}
-#define iTCO_vendor_pre_set_heartbeat(heartbeat) {}
-#define iTCO_vendor_check_noreboot_on() 1 /* 1=check noreboot; 0=don't check */
-#endif
+MODULE_PARM_DESC(nowayout,
+ "Watchdog cannot be stopped once started (default="
+ __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");

/*
* Some TCO specific functions
@@ -365,11 +362,10 @@ static int iTCO_wdt_keepalive(void)
iTCO_vendor_pre_keepalive(iTCO_wdt_private.ACPIBASE, heartbeat);

/* Reload the timer by writing to the TCO Timer Counter register */
- if (iTCO_wdt_private.iTCO_version == 2) {
+ if (iTCO_wdt_private.iTCO_version == 2)
outw(0x01, TCO_RLD);
- } else if (iTCO_wdt_private.iTCO_version == 1) {
+ else if (iTCO_wdt_private.iTCO_version == 1)
outb(0x01, TCO_RLD);
- }

spin_unlock(&iTCO_wdt_private.io_lock);
return 0;
@@ -421,7 +417,7 @@ static int iTCO_wdt_set_heartbeat(int t)
return 0;
}

-static int iTCO_wdt_get_timeleft (int *time_left)
+static int iTCO_wdt_get_timeleft(int *time_left)
{
unsigned int val16;
unsigned char val8;
@@ -450,7 +446,7 @@ static int iTCO_wdt_get_timeleft (int *time_left)
* /dev/watchdog handling
*/

-static int iTCO_wdt_open (struct inode *inode, struct file *file)
+static int iTCO_wdt_open(struct inode *inode, struct file *file)
{
/* /dev/watchdog can only be opened once */
if (test_and_set_bit(0, &is_active))
@@ -464,7 +460,7 @@ static int iTCO_wdt_open (struct inode *inode, struct file *file)
return nonseekable_open(inode, file);
}

-static int iTCO_wdt_release (struct inode *inode, struct file *file)
+static int iTCO_wdt_release(struct inode *inode, struct file *file)
{
/*
* Shut off the timer.
@@ -472,7 +468,8 @@ static int iTCO_wdt_release (struct inode *inode, struct file *file)
if (expect_release == 42) {
iTCO_wdt_stop();
} else {
- printk(KERN_CRIT PFX "Unexpected close, not stopping watchdog!\n");
+ printk(KERN_CRIT PFX
+ "Unexpected close, not stopping watchdog!\n");
iTCO_wdt_keepalive();
}
clear_bit(0, &is_active);
@@ -480,19 +477,20 @@ static int iTCO_wdt_release (struct inode *inode, struct file *file)
return 0;
}

-static ssize_t iTCO_wdt_write (struct file *file, const char __user *data,
- size_t len, loff_t * ppos)
+static ssize_t iTCO_wdt_write(struct file *file, const char __user *data,
+ size_t len, loff_t *ppos)
{
/* See if we got the magic character 'V' and reload the timer */
if (len) {
if (!nowayout) {
size_t i;

- /* note: just in case someone wrote the magic character
- * five months ago... */
+ /* note: just in case someone wrote the magic
+ character five months ago... */
expect_release = 0;

- /* scan to see whether or not we got the magic character */
+ /* scan to see whether or not we got the
+ magic character */
for (i = 0; i != len; i++) {
char c;
if (get_user(c, data+i))
@@ -508,8 +506,8 @@ static ssize_t iTCO_wdt_write (struct file *file, const char __user *data,
return len;
}

-static int iTCO_wdt_ioctl (struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static long iTCO_wdt_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
{
int new_options, retval = -EINVAL;
int new_heartbeat;
@@ -524,64 +522,52 @@ static int iTCO_wdt_ioctl (struct inode *inode, struct file *file,
};

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:
- iTCO_wdt_keepalive();
- return 0;
+ 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_SETOPTIONS:
- {
- if (get_user(new_options, p))
- return -EFAULT;
-
- if (new_options & WDIOS_DISABLECARD) {
- iTCO_wdt_stop();
- retval = 0;
- }
+ case WDIOC_KEEPALIVE:
+ iTCO_wdt_keepalive();
+ return 0;

- if (new_options & WDIOS_ENABLECARD) {
- iTCO_wdt_keepalive();
- iTCO_wdt_start();
- retval = 0;
- }
+ case WDIOC_SETOPTIONS:
+ {
+ if (get_user(new_options, p))
+ return -EFAULT;

- return retval;
+ if (new_options & WDIOS_DISABLECARD) {
+ iTCO_wdt_stop();
+ retval = 0;
}
-
- case WDIOC_SETTIMEOUT:
- {
- if (get_user(new_heartbeat, p))
- return -EFAULT;
-
- if (iTCO_wdt_set_heartbeat(new_heartbeat))
- return -EINVAL;
-
+ if (new_options & WDIOS_ENABLECARD) {
iTCO_wdt_keepalive();
- /* Fall */
+ iTCO_wdt_start();
+ retval = 0;
}
-
- case WDIOC_GETTIMEOUT:
- return put_user(heartbeat, p);
-
- case WDIOC_GETTIMELEFT:
- {
- int time_left;
-
- if (iTCO_wdt_get_timeleft(&time_left))
- return -EINVAL;
-
- return put_user(time_left, p);
- }
-
- default:
- return -ENOTTY;
+ return retval;
+ }
+ case WDIOC_SETTIMEOUT:
+ {
+ if (get_user(new_heartbeat, p))
+ return -EFAULT;
+ if (iTCO_wdt_set_heartbeat(new_heartbeat))
+ return -EINVAL;
+ iTCO_wdt_keepalive();
+ /* Fall */
+ }
+ case WDIOC_GETTIMEOUT:
+ return put_user(heartbeat, p);
+ case WDIOC_GETTIMELEFT:
+ {
+ int time_left;
+ if (iTCO_wdt_get_timeleft(&time_left))
+ return -EINVAL;
+ return put_user(time_left, p);
+ }
+ default:
+ return -ENOTTY;
}
}

@@ -590,12 +576,12 @@ static int iTCO_wdt_ioctl (struct inode *inode, struct file *file,
*/

static const struct file_operations iTCO_wdt_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = iTCO_wdt_write,
- .ioctl = iTCO_wdt_ioctl,
- .open = iTCO_wdt_open,
- .release = iTCO_wdt_release,
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .write = iTCO_wdt_write,
+ .unlocked_ioctl = iTCO_wdt_ioctl,
+ .open = iTCO_wdt_open,
+ .release = iTCO_wdt_release,
};

static struct miscdevice iTCO_wdt_miscdev = {
@@ -608,7 +594,8 @@ static struct miscdevice iTCO_wdt_miscdev = {
* Init & exit routines
*/

-static int __devinit iTCO_wdt_init(struct pci_dev *pdev, const struct pci_device_id *ent, struct platform_device *dev)
+static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
+ const struct pci_device_id *ent, struct platform_device *dev)
{
int ret;
u32 base_address;
@@ -628,17 +615,19 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev, const struct pci_device
pci_dev_put(pdev);
return -ENODEV;
}
- iTCO_wdt_private.iTCO_version = iTCO_chipset_info[ent->driver_data].iTCO_version;
+ iTCO_wdt_private.iTCO_version =
+ iTCO_chipset_info[ent->driver_data].iTCO_version;
iTCO_wdt_private.ACPIBASE = base_address;
iTCO_wdt_private.pdev = pdev;

- /* Get the Memory-Mapped GCS register, we need it for the NO_REBOOT flag (TCO v2) */
- /* To get access to it you have to read RCBA from PCI Config space 0xf0
- and use it as base. GCS = RCBA + ICH6_GCS(0x3410). */
+ /* Get the Memory-Mapped GCS register, we need it for the
+ NO_REBOOT flag (TCO v2). To get access to it you have to
+ read RCBA from PCI Config space 0xf0 and use it as base.
+ GCS = RCBA + ICH6_GCS(0x3410). */
if (iTCO_wdt_private.iTCO_version == 2) {
pci_read_config_dword(pdev, 0xf0, &base_address);
RCBA = base_address & 0xffffc000;
- iTCO_wdt_private.gcs = ioremap((RCBA + 0x3410),4);
+ iTCO_wdt_private.gcs = ioremap((RCBA + 0x3410), 4);
}

/* Check chipset's NO_REBOOT bit */
@@ -653,8 +642,8 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev, const struct pci_device

/* Set the TCO_EN bit in SMI_EN register */
if (!request_region(SMI_EN, 4, "iTCO_wdt")) {
- printk(KERN_ERR PFX "I/O address 0x%04lx already in use\n",
- SMI_EN );
+ printk(KERN_ERR PFX
+ "I/O address 0x%04lx already in use\n", SMI_EN);
ret = -EIO;
goto out;
}
@@ -663,18 +652,20 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev, const struct pci_device
outl(val32, SMI_EN);
release_region(SMI_EN, 4);

- /* 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\n",
+ /* 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\n",
TCOBASE);
ret = -EIO;
goto out;
}

- 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);
+ 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);

/* Clear out the (probably old) status */
outb(0, TCO1_STS);
@@ -683,27 +674,29 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev, const struct pci_device
/* Make sure the watchdog is not running */
iTCO_wdt_stop();

- /* Check that the heartbeat value is within it's range ; if not reset to the default */
+ /* Check that the heartbeat value is within it's range;
+ if not reset to the default */
if (iTCO_wdt_set_heartbeat(heartbeat)) {
iTCO_wdt_set_heartbeat(WATCHDOG_HEARTBEAT);
- printk(KERN_INFO PFX "heartbeat value must be 2<heartbeat<39 (TCO v1) or 613 (TCO v2), using %d\n",
- heartbeat);
+ printk(KERN_INFO PFX "heartbeat value must be 2 < heartbeat < 39 (TCO v1) or 613 (TCO v2), 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);
+ printk(KERN_ERR PFX
+ "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);
+ printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
+ heartbeat, nowayout);

return 0;

unreg_region:
- release_region (TCOBASE, 0x20);
+ release_region(TCOBASE, 0x20);
out:
if (iTCO_wdt_private.iTCO_version == 2)
iounmap(iTCO_wdt_private.gcs);
@@ -792,7 +785,8 @@ static int __init iTCO_wdt_init_module(void)
if (err)
return err;

- iTCO_wdt_platform_device = platform_device_register_simple(DRV_NAME, -1, NULL, 0);
+ iTCO_wdt_platform_device = platform_device_register_simple(DRV_NAME,
+ -1, NULL, 0);
if (IS_ERR(iTCO_wdt_platform_device)) {
err = PTR_ERR(iTCO_wdt_platform_device);
goto unreg_platform_driver;

--
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