diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/char/watchdog/iTCO_wdt.c | 103 |
1 files changed, 79 insertions, 24 deletions
diff --git a/drivers/char/watchdog/iTCO_wdt.c b/drivers/char/watchdog/iTCO_wdt.c index c1a5787fde5b..cbdfbf00cfb7 100644 --- a/drivers/char/watchdog/iTCO_wdt.c +++ b/drivers/char/watchdog/iTCO_wdt.c | |||
@@ -45,28 +45,29 @@ | |||
45 | /* Module and version information */ | 45 | /* Module and version information */ |
46 | #define DRV_NAME "iTCO_wdt" | 46 | #define DRV_NAME "iTCO_wdt" |
47 | #define DRV_VERSION "1.00" | 47 | #define DRV_VERSION "1.00" |
48 | #define DRV_RELDATE "21-May-2006" | 48 | #define DRV_RELDATE "18-Jun-2006" |
49 | #define PFX DRV_NAME ": " | 49 | #define PFX DRV_NAME ": " |
50 | 50 | ||
51 | /* Includes */ | 51 | /* Includes */ |
52 | #include <linux/config.h> /* For CONFIG_WATCHDOG_NOWAYOUT/... */ | 52 | #include <linux/config.h> /* For CONFIG_WATCHDOG_NOWAYOUT/... */ |
53 | #include <linux/module.h> /* For module specific items */ | 53 | #include <linux/module.h> /* For module specific items */ |
54 | #include <linux/moduleparam.h> /* For new moduleparam's */ | 54 | #include <linux/moduleparam.h> /* For new moduleparam's */ |
55 | #include <linux/types.h> /* For standard types (like size_t) */ | 55 | #include <linux/types.h> /* For standard types (like size_t) */ |
56 | #include <linux/errno.h> /* For the -ENODEV/... values */ | 56 | #include <linux/errno.h> /* For the -ENODEV/... values */ |
57 | #include <linux/kernel.h> /* For printk/panic/... */ | 57 | #include <linux/kernel.h> /* For printk/panic/... */ |
58 | #include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */ | 58 | #include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */ |
59 | #include <linux/watchdog.h> /* For the watchdog specific items */ | 59 | #include <linux/watchdog.h> /* For the watchdog specific items */ |
60 | #include <linux/notifier.h> /* For notifier support */ | 60 | #include <linux/notifier.h> /* For notifier support */ |
61 | #include <linux/reboot.h> /* For reboot_notifier stuff */ | 61 | #include <linux/reboot.h> /* For reboot_notifier stuff */ |
62 | #include <linux/init.h> /* For __init/__exit/... */ | 62 | #include <linux/init.h> /* For __init/__exit/... */ |
63 | #include <linux/fs.h> /* For file operations */ | 63 | #include <linux/fs.h> /* For file operations */ |
64 | #include <linux/pci.h> /* For pci functions */ | 64 | #include <linux/platform_device.h> /* For platform_driver framework */ |
65 | #include <linux/ioport.h> /* For io-port access */ | 65 | #include <linux/pci.h> /* For pci functions */ |
66 | #include <linux/spinlock.h> /* For spin_lock/spin_unlock/... */ | 66 | #include <linux/ioport.h> /* For io-port access */ |
67 | 67 | #include <linux/spinlock.h> /* For spin_lock/spin_unlock/... */ | |
68 | #include <asm/uaccess.h> /* For copy_to_user/put_user/... */ | 68 | |
69 | #include <asm/io.h> /* For inb/outb/... */ | 69 | #include <asm/uaccess.h> /* For copy_to_user/put_user/... */ |
70 | #include <asm/io.h> /* For inb/outb/... */ | ||
70 | 71 | ||
71 | /* TCO related info */ | 72 | /* TCO related info */ |
72 | enum iTCO_chipsets { | 73 | enum iTCO_chipsets { |
@@ -166,6 +167,8 @@ static struct { /* this is private data for the iTCO_wdt device */ | |||
166 | struct pci_dev *pdev; /* the PCI-device */ | 167 | struct pci_dev *pdev; /* the PCI-device */ |
167 | } iTCO_wdt_private; | 168 | } iTCO_wdt_private; |
168 | 169 | ||
170 | static struct platform_device *iTCO_wdt_platform_device; /* the watchdog platform device */ | ||
171 | |||
169 | /* module parameters */ | 172 | /* module parameters */ |
170 | #define WATCHDOG_HEARTBEAT 30 /* 30 sec default heartbeat */ | 173 | #define WATCHDOG_HEARTBEAT 30 /* 30 sec default heartbeat */ |
171 | static int heartbeat = WATCHDOG_HEARTBEAT; /* in seconds */ | 174 | static int heartbeat = WATCHDOG_HEARTBEAT; /* in seconds */ |
@@ -538,7 +541,7 @@ static struct notifier_block iTCO_wdt_notifier = { | |||
538 | * Init & exit routines | 541 | * Init & exit routines |
539 | */ | 542 | */ |
540 | 543 | ||
541 | static int __init iTCO_wdt_init(struct pci_dev *pdev, const struct pci_device_id *ent) | 544 | static int iTCO_wdt_init(struct pci_dev *pdev, const struct pci_device_id *ent, struct platform_device *dev) |
542 | { | 545 | { |
543 | int ret; | 546 | int ret; |
544 | u32 base_address; | 547 | u32 base_address; |
@@ -649,7 +652,7 @@ out: | |||
649 | return ret; | 652 | return ret; |
650 | } | 653 | } |
651 | 654 | ||
652 | static void __exit iTCO_wdt_cleanup(void) | 655 | static void iTCO_wdt_cleanup(void) |
653 | { | 656 | { |
654 | /* Stop the timer before we leave */ | 657 | /* Stop the timer before we leave */ |
655 | if (!nowayout) | 658 | if (!nowayout) |
@@ -663,7 +666,7 @@ static void __exit iTCO_wdt_cleanup(void) | |||
663 | iounmap(iTCO_wdt_private.gcs); | 666 | iounmap(iTCO_wdt_private.gcs); |
664 | } | 667 | } |
665 | 668 | ||
666 | static int __init iTCO_wdt_init_module(void) | 669 | static int iTCO_wdt_probe(struct platform_device *dev) |
667 | { | 670 | { |
668 | int found = 0; | 671 | int found = 0; |
669 | struct pci_dev *pdev = NULL; | 672 | struct pci_dev *pdev = NULL; |
@@ -674,7 +677,7 @@ static int __init iTCO_wdt_init_module(void) | |||
674 | for_each_pci_dev(pdev) { | 677 | for_each_pci_dev(pdev) { |
675 | ent = pci_match_id(iTCO_wdt_pci_tbl, pdev); | 678 | ent = pci_match_id(iTCO_wdt_pci_tbl, pdev); |
676 | if (ent) { | 679 | if (ent) { |
677 | if (!(iTCO_wdt_init(pdev, ent))) { | 680 | if (!(iTCO_wdt_init(pdev, ent, dev))) { |
678 | found++; | 681 | found++; |
679 | break; | 682 | break; |
680 | } | 683 | } |
@@ -689,11 +692,62 @@ static int __init iTCO_wdt_init_module(void) | |||
689 | return 0; | 692 | return 0; |
690 | } | 693 | } |
691 | 694 | ||
692 | static void __exit iTCO_wdt_cleanup_module(void) | 695 | static int iTCO_wdt_remove(struct platform_device *dev) |
693 | { | 696 | { |
694 | if (iTCO_wdt_private.ACPIBASE) | 697 | if (iTCO_wdt_private.ACPIBASE) |
695 | iTCO_wdt_cleanup(); | 698 | iTCO_wdt_cleanup(); |
696 | 699 | ||
700 | return 0; | ||
701 | } | ||
702 | |||
703 | static void iTCO_wdt_shutdown(struct platform_device *dev) | ||
704 | { | ||
705 | iTCO_wdt_stop(); | ||
706 | } | ||
707 | |||
708 | #define iTCO_wdt_suspend NULL | ||
709 | #define iTCO_wdt_resume NULL | ||
710 | |||
711 | static struct platform_driver iTCO_wdt_driver = { | ||
712 | .probe = iTCO_wdt_probe, | ||
713 | .remove = iTCO_wdt_remove, | ||
714 | .shutdown = iTCO_wdt_shutdown, | ||
715 | .suspend = iTCO_wdt_suspend, | ||
716 | .resume = iTCO_wdt_resume, | ||
717 | .driver = { | ||
718 | .owner = THIS_MODULE, | ||
719 | .name = DRV_NAME, | ||
720 | }, | ||
721 | }; | ||
722 | |||
723 | static int __init iTCO_wdt_init_module(void) | ||
724 | { | ||
725 | int err; | ||
726 | |||
727 | printk(KERN_INFO PFX "Intel TCO WatchDog Timer Driver v%s (%s)\n", | ||
728 | DRV_VERSION, DRV_RELDATE); | ||
729 | |||
730 | err = platform_driver_register(&iTCO_wdt_driver); | ||
731 | if (err) | ||
732 | return err; | ||
733 | |||
734 | iTCO_wdt_platform_device = platform_device_register_simple(DRV_NAME, -1, NULL, 0); | ||
735 | if (IS_ERR(iTCO_wdt_platform_device)) { | ||
736 | err = PTR_ERR(iTCO_wdt_platform_device); | ||
737 | goto unreg_platform_driver; | ||
738 | } | ||
739 | |||
740 | return 0; | ||
741 | |||
742 | unreg_platform_driver: | ||
743 | platform_driver_unregister(&iTCO_wdt_driver); | ||
744 | return err; | ||
745 | } | ||
746 | |||
747 | static void __exit iTCO_wdt_cleanup_module(void) | ||
748 | { | ||
749 | platform_device_unregister(iTCO_wdt_platform_device); | ||
750 | platform_driver_unregister(&iTCO_wdt_driver); | ||
697 | printk(KERN_INFO PFX "Watchdog Module Unloaded.\n"); | 751 | printk(KERN_INFO PFX "Watchdog Module Unloaded.\n"); |
698 | } | 752 | } |
699 | 753 | ||
@@ -702,5 +756,6 @@ module_exit(iTCO_wdt_cleanup_module); | |||
702 | 756 | ||
703 | MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>"); | 757 | MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>"); |
704 | MODULE_DESCRIPTION("Intel TCO WatchDog Timer Driver"); | 758 | MODULE_DESCRIPTION("Intel TCO WatchDog Timer Driver"); |
759 | MODULE_VERSION(DRV_VERSION); | ||
705 | MODULE_LICENSE("GPL"); | 760 | MODULE_LICENSE("GPL"); |
706 | MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); | 761 | MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); |