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提交 0e6fa3fb 编写于 作者: A Alan Cox 提交者： Wim Van Sebroeck
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[WATCHDOG 18/57] iTCO: unlocked_ioctl, coding style and cleanup 

Review and switch to unlocked_ioctl
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
上级 30abcec1
隐藏空白更改
内联 并排
Showing with 189 addition and 175 deletion
drivers/watchdog/iTCO_vendor.h 0 → 100644
浏览文件 @ 0e6fa3fb
/* 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
drivers/watchdog/iTCO_vendor_support.c
浏览文件 @ 0e6fa3fb
......@@ -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);
......
drivers/watchdog/iTCO_wdt.c
浏览文件 @ 0e6fa3fb
......@@ -66,7 +66,8 @@
#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 */
......@@ -74,9 +75,10 @@
#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 {
......@@ -140,7 +142,7 @@ static struct {
{"ICH9DH", 2},
{"ICH9DO", 2},
{"631xESB/632xESB", 2},
{NULL,0}
{NULL, 0}
};
#define ITCO_PCI_DEVICE(dev, data) \
......@@ -159,32 +161,32 @@ 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_ICH9_4, TCO_ICH9DO )},
{ 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_ICH9_4, TCO_ICH9DO)},
{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ESB2_0, TCO_631XESB)},
{ ITCO_PCI_DEVICE(0x2671, TCO_631XESB)},
{ ITCO_PCI_DEVICE(0x2672, TCO_631XESB)},
......@@ -203,13 +205,15 @@ 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 */
......@@ -222,15 +226,21 @@ 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 */
......@@ -240,22 +250,9 @@ 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
......@@ -369,11 +366,10 @@ 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;
......@@ -425,7 +421,7 @@ 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;
......@@ -454,7 +450,7 @@ 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))
......@@ -468,7 +464,7 @@ 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.
......@@ -476,7 +472,8 @@ 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);
......@@ -484,19 +481,20 @@ 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))
......@@ -512,8 +510,8 @@ 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;
......@@ -528,64 +526,52 @@ 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;
}
}
......@@ -594,12 +580,12 @@ 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 = {
......@@ -612,7 +598,8 @@ 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;
......@@ -632,17 +619,19 @@ 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 */
......@@ -657,8 +646,8 @@ 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;
}
......@@ -667,18 +656,20 @@ 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);
......@@ -687,27 +678,29 @@ 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);
......@@ -796,7 +789,8 @@ 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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