diff options
Diffstat (limited to 'drivers/char/watchdog/pcwd.c')
-rw-r--r-- | drivers/char/watchdog/pcwd.c | 157 |
1 files changed, 79 insertions, 78 deletions
diff --git a/drivers/char/watchdog/pcwd.c b/drivers/char/watchdog/pcwd.c index 0549b2e89966..f8f80d52d4de 100644 --- a/drivers/char/watchdog/pcwd.c +++ b/drivers/char/watchdog/pcwd.c | |||
@@ -229,6 +229,83 @@ static inline void pcwd_check_temperature_support(void) | |||
229 | pcwd_private.supports_temp = 1; | 229 | pcwd_private.supports_temp = 1; |
230 | } | 230 | } |
231 | 231 | ||
232 | static inline char *get_firmware(void) | ||
233 | { | ||
234 | int one, ten, hund, minor; | ||
235 | char *ret; | ||
236 | |||
237 | ret = kmalloc(6, GFP_KERNEL); | ||
238 | if(ret == NULL) | ||
239 | return NULL; | ||
240 | |||
241 | if (set_command_mode()) { | ||
242 | one = send_isa_command(CMD_ISA_VERSION_INTEGER); | ||
243 | ten = send_isa_command(CMD_ISA_VERSION_TENTH); | ||
244 | hund = send_isa_command(CMD_ISA_VERSION_HUNDRETH); | ||
245 | minor = send_isa_command(CMD_ISA_VERSION_MINOR); | ||
246 | sprintf(ret, "%c.%c%c%c", one, ten, hund, minor); | ||
247 | } | ||
248 | else | ||
249 | sprintf(ret, "ERROR"); | ||
250 | |||
251 | unset_command_mode(); | ||
252 | return(ret); | ||
253 | } | ||
254 | |||
255 | static inline int pcwd_get_option_switches(void) | ||
256 | { | ||
257 | int option_switches=0; | ||
258 | |||
259 | if (set_command_mode()) { | ||
260 | /* Get switch settings */ | ||
261 | option_switches = send_isa_command(CMD_ISA_SWITCH_SETTINGS); | ||
262 | } | ||
263 | |||
264 | unset_command_mode(); | ||
265 | return(option_switches); | ||
266 | } | ||
267 | |||
268 | static void pcwd_show_card_info(void) | ||
269 | { | ||
270 | char *firmware; | ||
271 | int option_switches; | ||
272 | |||
273 | /* Get some extra info from the hardware (in command/debug/diag mode) */ | ||
274 | if (pcwd_private.revision == PCWD_REVISION_A) | ||
275 | printk(KERN_INFO PFX "ISA-PC Watchdog (REV.A) detected at port 0x%04x\n", pcwd_private.io_addr); | ||
276 | else if (pcwd_private.revision == PCWD_REVISION_C) { | ||
277 | firmware = get_firmware(); | ||
278 | printk(KERN_INFO PFX "ISA-PC Watchdog (REV.C) detected at port 0x%04x (Firmware version: %s)\n", | ||
279 | pcwd_private.io_addr, firmware); | ||
280 | kfree(firmware); | ||
281 | option_switches = pcwd_get_option_switches(); | ||
282 | printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n", | ||
283 | option_switches, | ||
284 | ((option_switches & 0x10) ? "ON" : "OFF"), | ||
285 | ((option_switches & 0x08) ? "ON" : "OFF")); | ||
286 | |||
287 | /* Reprogram internal heartbeat to 2 seconds */ | ||
288 | if (set_command_mode()) { | ||
289 | send_isa_command(CMD_ISA_DELAY_TIME_2SECS); | ||
290 | unset_command_mode(); | ||
291 | } | ||
292 | } | ||
293 | |||
294 | if (pcwd_private.supports_temp) | ||
295 | printk(KERN_INFO PFX "Temperature Option Detected\n"); | ||
296 | |||
297 | if (pcwd_private.boot_status & WDIOF_CARDRESET) | ||
298 | printk(KERN_INFO PFX "Previous reboot was caused by the card\n"); | ||
299 | |||
300 | if (pcwd_private.boot_status & WDIOF_OVERHEAT) { | ||
301 | printk(KERN_EMERG PFX "Card senses a CPU Overheat. Panicking!\n"); | ||
302 | printk(KERN_EMERG PFX "CPU Overheat\n"); | ||
303 | } | ||
304 | |||
305 | if (pcwd_private.boot_status == 0) | ||
306 | printk(KERN_INFO PFX "No previous trip detected - Cold boot or reset\n"); | ||
307 | } | ||
308 | |||
232 | static void pcwd_timer_ping(unsigned long data) | 309 | static void pcwd_timer_ping(unsigned long data) |
233 | { | 310 | { |
234 | int wdrst_stat; | 311 | int wdrst_stat; |
@@ -644,47 +721,9 @@ static inline int get_revision(void) | |||
644 | return r; | 721 | return r; |
645 | } | 722 | } |
646 | 723 | ||
647 | static inline char *get_firmware(void) | ||
648 | { | ||
649 | int one, ten, hund, minor; | ||
650 | char *ret; | ||
651 | |||
652 | ret = kmalloc(6, GFP_KERNEL); | ||
653 | if(ret == NULL) | ||
654 | return NULL; | ||
655 | |||
656 | if (set_command_mode()) { | ||
657 | one = send_isa_command(CMD_ISA_VERSION_INTEGER); | ||
658 | ten = send_isa_command(CMD_ISA_VERSION_TENTH); | ||
659 | hund = send_isa_command(CMD_ISA_VERSION_HUNDRETH); | ||
660 | minor = send_isa_command(CMD_ISA_VERSION_MINOR); | ||
661 | sprintf(ret, "%c.%c%c%c", one, ten, hund, minor); | ||
662 | } | ||
663 | else | ||
664 | sprintf(ret, "ERROR"); | ||
665 | |||
666 | unset_command_mode(); | ||
667 | return(ret); | ||
668 | } | ||
669 | |||
670 | static inline int get_option_switches(void) | ||
671 | { | ||
672 | int rv=0; | ||
673 | |||
674 | if (set_command_mode()) { | ||
675 | /* Get switch settings */ | ||
676 | rv = send_isa_command(CMD_ISA_SWITCH_SETTINGS); | ||
677 | } | ||
678 | |||
679 | unset_command_mode(); | ||
680 | return(rv); | ||
681 | } | ||
682 | |||
683 | static int __devinit pcwatchdog_init(int base_addr) | 724 | static int __devinit pcwatchdog_init(int base_addr) |
684 | { | 725 | { |
685 | int ret; | 726 | int ret; |
686 | char *firmware; | ||
687 | int option_switches; | ||
688 | 727 | ||
689 | cards_found++; | 728 | cards_found++; |
690 | if (cards_found == 1) | 729 | if (cards_found == 1) |
@@ -732,46 +771,8 @@ static int __devinit pcwatchdog_init(int base_addr) | |||
732 | /* Check whether or not the card supports the temperature device */ | 771 | /* Check whether or not the card supports the temperature device */ |
733 | pcwd_check_temperature_support(); | 772 | pcwd_check_temperature_support(); |
734 | 773 | ||
735 | /* Get some extra info from the hardware (in command/debug/diag mode) */ | 774 | /* Show info about the card itself */ |
736 | if (pcwd_private.revision == PCWD_REVISION_A) | 775 | pcwd_show_card_info(); |
737 | printk(KERN_INFO PFX "ISA-PC Watchdog (REV.A) detected at port 0x%04x\n", pcwd_private.io_addr); | ||
738 | else if (pcwd_private.revision == PCWD_REVISION_C) { | ||
739 | firmware = get_firmware(); | ||
740 | printk(KERN_INFO PFX "ISA-PC Watchdog (REV.C) detected at port 0x%04x (Firmware version: %s)\n", | ||
741 | pcwd_private.io_addr, firmware); | ||
742 | kfree(firmware); | ||
743 | option_switches = get_option_switches(); | ||
744 | printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n", | ||
745 | option_switches, | ||
746 | ((option_switches & 0x10) ? "ON" : "OFF"), | ||
747 | ((option_switches & 0x08) ? "ON" : "OFF")); | ||
748 | |||
749 | /* Reprogram internal heartbeat to 2 seconds */ | ||
750 | if (set_command_mode()) { | ||
751 | send_isa_command(CMD_ISA_DELAY_TIME_2SECS); | ||
752 | unset_command_mode(); | ||
753 | } | ||
754 | } else { | ||
755 | /* Should NEVER happen, unless get_revision() fails. */ | ||
756 | printk(KERN_INFO PFX "Unable to get revision\n"); | ||
757 | release_region(pcwd_private.io_addr, (pcwd_private.revision == PCWD_REVISION_A) ? 2 : 4); | ||
758 | pcwd_private.io_addr = 0x0000; | ||
759 | return -1; | ||
760 | } | ||
761 | |||
762 | if (pcwd_private.supports_temp) | ||
763 | printk(KERN_INFO PFX "Temperature Option Detected\n"); | ||
764 | |||
765 | if (pcwd_private.boot_status & WDIOF_CARDRESET) | ||
766 | printk(KERN_INFO PFX "Previous reboot was caused by the card\n"); | ||
767 | |||
768 | if (pcwd_private.boot_status & WDIOF_OVERHEAT) { | ||
769 | printk(KERN_EMERG PFX "Card senses a CPU Overheat. Panicking!\n"); | ||
770 | printk(KERN_EMERG PFX "CPU Overheat\n"); | ||
771 | } | ||
772 | |||
773 | if (pcwd_private.boot_status == 0) | ||
774 | printk(KERN_INFO PFX "No previous trip detected - Cold boot or reset\n"); | ||
775 | 776 | ||
776 | /* Check that the heartbeat value is within it's range ; if not reset to the default */ | 777 | /* Check that the heartbeat value is within it's range ; if not reset to the default */ |
777 | if (pcwd_set_heartbeat(heartbeat)) { | 778 | if (pcwd_set_heartbeat(heartbeat)) { |