* 82801E (C-ICH) : document number 273599-001, 273645-002,
* 82801EB (ICH5) : document number 252516-001, 252517-003,
* 82801ER (ICH5R) : document number 252516-001, 252517-003,
- * 82801FB (ICH6) : document number 301473-002, 301474-007,
- * 82801FR (ICH6R) : document number 301473-002, 301474-007,
- * 82801FBM (ICH6-M) : document number 301473-002, 301474-007,
- * 82801FW (ICH6W) : document number 301473-001, 301474-007,
- * 82801FRW (ICH6RW) : document number 301473-001, 301474-007
*
* 20000710 Nils Faerber
* Initial Version 0.01
* 20050807 Wim Van Sebroeck <wim@iguana.be>
* 0.08 Make sure that the watchdog is only "armed" when started.
* (Kernel Bug 4251)
+ * 20060416 Wim Van Sebroeck <wim@iguana.be>
+ * 0.09 Remove support for the ICH6, ICH6R, ICH6-M, ICH6W and ICH6RW and
+ * ICH7 chipsets. (See Kernel Bug 6031 - other code will support these
+ * chipsets)
*/
/*
#include "i8xx_tco.h"
/* Module and version information */
-#define TCO_VERSION "0.08"
+#define TCO_VERSION "0.09"
#define TCO_MODULE_NAME "i8xx TCO timer"
#define TCO_DRIVER_NAME TCO_MODULE_NAME ", v" TCO_VERSION
#define PFX TCO_MODULE_NAME ": "
return 0;
}
+static int tco_timer_get_timeleft (int *time_left)
+{
+ unsigned char val;
+
+ spin_lock(&tco_lock);
+
+ /* read the TCO Timer */
+ val = inb (TCO1_RLD);
+ val &= 0x3f;
+
+ spin_unlock(&tco_lock);
+
+ *time_left = (int)((val * 6) / 10);
+
+ return 0;
+}
+
/*
* /dev/watchdog handling
*/
{
int new_options, retval = -EINVAL;
int new_heartbeat;
+ int time_left;
void __user *argp = (void __user *)arg;
int __user *p = argp;
static struct watchdog_info ident = {
return -EFAULT;
if (tco_timer_set_heartbeat(new_heartbeat))
- return -EINVAL;
+ return -EINVAL;
tco_timer_keepalive ();
/* Fall */
case WDIOC_GETTIMEOUT:
return put_user(heartbeat, p);
+ case WDIOC_GETTIMELEFT:
+ {
+ if (tco_timer_get_timeleft(&time_left))
+ return -EINVAL;
+
+ return put_user(time_left, p);
+ }
+
default:
- return -ENOIOCTLCMD;
+ return -ENOTTY;
}
}
* Kernel Interfaces
*/
-static struct file_operations i8xx_tco_fops = {
+static const struct file_operations i8xx_tco_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.write = i8xx_tco_write,
* want to register another driver on the same PCI id.
*/
static struct pci_device_id i8xx_tco_pci_tbl[] = {
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801E_0, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_2, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, PCI_ANY_ID, PCI_ANY_ID, },
- { 0, }, /* End of list */
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801E_0) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1) },
+ { }, /* End of list */
};
MODULE_DEVICE_TABLE (pci, i8xx_tco_pci_tbl);
* Find the PCI device
*/
- while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
+ for_each_pci_dev(dev)
if (pci_match_id(i8xx_tco_pci_tbl, dev)) {
i8xx_tco_pci = dev;
break;
}
- }
if (i8xx_tco_pci) {
/*
/* Something's wrong here, ACPIBASE has to be set */
if (badr == 0x0001 || badr == 0x0000) {
printk (KERN_ERR PFX "failed to get TCOBASE address\n");
+ pci_dev_put(i8xx_tco_pci);
return 0;
}
pci_read_config_byte (i8xx_tco_pci, 0xd4, &val1);
if (val1 & 0x02) {
printk (KERN_ERR PFX "failed to reset NO_REBOOT flag, reboot disabled by hardware\n");
+ pci_dev_put(i8xx_tco_pci);
return 0; /* Cannot reset NO_REBOOT bit */
}
}
if (!request_region (SMI_EN + 1, 1, "i8xx TCO")) {
printk (KERN_ERR PFX "I/O address 0x%04x already in use\n",
SMI_EN + 1);
+ pci_dev_put(i8xx_tco_pci);
return 0;
}
val1 = inb (SMI_EN + 1);
unreg_region:
release_region (TCOBASE, 0x10);
out:
+ pci_dev_put(i8xx_tco_pci);
return ret;
}
misc_deregister (&i8xx_tco_miscdev);
unregister_reboot_notifier(&i8xx_tco_notifier);
release_region (TCOBASE, 0x10);
+
+ pci_dev_put(i8xx_tco_pci);
}
module_init(watchdog_init);