diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-13 16:10:08 -0800 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-13 16:10:08 -0800 |
commit | 58a3bb59973e33a428d72fa530a3d1d81feb0e8f (patch) | |
tree | 11a6f4838ec20d96bc287a62f21c4b10f0c86b1a /drivers/char/watchdog/pcwd_pci.c | |
parent | 7f1f86a0d04e79f8165e6f50d329a520b8cd11e5 (diff) | |
parent | 88d5a7bb75b5e8f600e79b16abaf008c7fdfd27d (diff) |
Merge master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
* master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: (23 commits)
[WATCHDOG] timers cleanup
[WATCHDOG] ib700wdt.c - convert to platform_device part 2
[WATCHDOG] ib700wdt.c - convert to platform_device
[WATCHDOG] ib700wdt.c spinlock/WDIOC_SETOPTIONS changes
[WATCHDOG] ib700wdt.c small clean-up's
[WATCHDOG] ib700wdt.c clean-up init and exit routines
[WATCHDOG] ib700_wdt.c stop + set_heartbeat operations
[WATCHDOG] show default value for nowayout in module parameter
[WATCHDOG] advantechwdt.c - convert to platform_device part 2
[WATCHDOG] advantechwdt.c - convert to platform_device
[WATCHDOG] advantechwdt.c - move set_heartbeat to a seperate function
[WATCHDOG] advantechwdt.c - cleanup before platform_device patches
[WATCHDOG] acquirewdt.c - convert to platform_device part 2
[WATCHDOG] acquirewdt.c - convert to platform_device
[WATCHDOG] acquirewdt.c - clean before platform_device patches
[WATCHDOG] pcwd_usb.c - get heartbeat from dip switches
[WATCHDOG] pcwd.c - e-mail adres update
[WATCHDOG] pcwd_usb.c - get heartbeat from dip switches
[WATCHDOG] pcwd_usb.c - document includes
[WATCHDOG] pcwd_pci.c - spinlock fixes
...
Diffstat (limited to 'drivers/char/watchdog/pcwd_pci.c')
-rw-r--r-- | drivers/char/watchdog/pcwd_pci.c | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/drivers/char/watchdog/pcwd_pci.c b/drivers/char/watchdog/pcwd_pci.c index f4872c87106..61a89e95964 100644 --- a/drivers/char/watchdog/pcwd_pci.c +++ b/drivers/char/watchdog/pcwd_pci.c @@ -1,7 +1,7 @@ /* * Berkshire PCI-PC Watchdog Card Driver * - * (c) Copyright 2003-2005 Wim Van Sebroeck <wim@iguana.be>. + * (c) Copyright 2003-2007 Wim Van Sebroeck <wim@iguana.be>. * * Based on source code of the following authors: * Ken Hollis <kenji@bitgate.com>, @@ -51,8 +51,8 @@ #include <asm/io.h> /* For inb/outb/... */ /* Module and version information */ -#define WATCHDOG_VERSION "1.02" -#define WATCHDOG_DATE "03 Sep 2005" +#define WATCHDOG_VERSION "1.03" +#define WATCHDOG_DATE "21 Jan 2007" #define WATCHDOG_DRIVER_NAME "PCI-PC Watchdog" #define WATCHDOG_NAME "pcwd_pci" #define PFX WATCHDOG_NAME ": " @@ -96,6 +96,18 @@ #define CMD_WRITE_WATCHDOG_TIMEOUT 0x19 #define CMD_GET_CLEAR_RESET_COUNT 0x84 +/* Watchdog's Dip Switch heartbeat values */ +static const int heartbeat_tbl [] = { + 5, /* OFF-OFF-OFF = 5 Sec */ + 10, /* OFF-OFF-ON = 10 Sec */ + 30, /* OFF-ON-OFF = 30 Sec */ + 60, /* OFF-ON-ON = 1 Min */ + 300, /* ON-OFF-OFF = 5 Min */ + 600, /* ON-OFF-ON = 10 Min */ + 1800, /* ON-ON-OFF = 30 Min */ + 3600, /* ON-ON-ON = 1 hour */ +}; + /* We can only use 1 card due to the /dev/watchdog restriction */ static int cards_found; @@ -119,14 +131,14 @@ static int debug = QUIET; module_param(debug, int, 0); MODULE_PARM_DESC(debug, "Debug level: 0=Quiet, 1=Verbose, 2=Debug (default=0)"); -#define WATCHDOG_HEARTBEAT 2 /* 2 sec default heartbeat */ +#define WATCHDOG_HEARTBEAT 0 /* default heartbeat = delay-time from dip-switches */ static int heartbeat = WATCHDOG_HEARTBEAT; module_param(heartbeat, int, 0); -MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0<heartbeat<65536, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); +MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0<heartbeat<65536 or 0=delay-time from dip-switches, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); static int nowayout = WATCHDOG_NOWAYOUT; module_param(nowayout, int, 0); -MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); /* * Internal functions @@ -286,7 +298,9 @@ static int pcipcwd_stop(void) static int pcipcwd_keepalive(void) { /* Re-trigger watchdog by writing to port 0 */ + spin_lock(&pcipcwd_private.io_lock); outb_p(0x42, pcipcwd_private.io_addr); /* send out any data */ + spin_unlock(&pcipcwd_private.io_lock); if (debug >= DEBUG) printk(KERN_DEBUG PFX "Watchdog keepalive signal send\n"); @@ -373,7 +387,9 @@ static int pcipcwd_get_temperature(int *temperature) if (!pcipcwd_private.supports_temp) return -ENODEV; + spin_lock(&pcipcwd_private.io_lock); *temperature = inb_p(pcipcwd_private.io_addr); + spin_unlock(&pcipcwd_private.io_lock); /* * Convert celsius to fahrenheit, since this was @@ -711,6 +727,10 @@ static int __devinit pcipcwd_card_init(struct pci_dev *pdev, /* Show info about the card itself */ pcipcwd_show_card_info(); + /* If heartbeat = 0 then we use the heartbeat from the dip-switches */ + if (heartbeat == 0) + heartbeat = heartbeat_tbl[(pcipcwd_get_option_switches() & 0x07)]; + /* Check that the heartbeat value is within it's range ; if not reset to the default */ if (pcipcwd_set_heartbeat(heartbeat)) { pcipcwd_set_heartbeat(WATCHDOG_HEARTBEAT); @@ -798,6 +818,8 @@ static int __init pcipcwd_init_module(void) static void __exit pcipcwd_cleanup_module(void) { pci_unregister_driver(&pcipcwd_driver); + + printk(KERN_INFO PFX "Watchdog Module Unloaded.\n"); } module_init(pcipcwd_init_module); |