Skip to content

Commit

Permalink
[WATCHDOG] pcwd.c show card info patch
Browse files Browse the repository at this point in the history 
Put all code for showing the card's boot info in
one sub-routine.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
  • Loading branch information
Wim Van Sebroeck committed Feb 12, 2006
1 parent 8587521 commit af3b38d
Showing 1 changed file with 79 additions and 78 deletions.
157 changes: 79 additions & 78 deletions drivers/char/watchdog/pcwd.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -229,6 +229,83 @@ static inline void pcwd_check_temperature_support(void)
pcwd_private.supports_temp = 1;
}

static inline char *get_firmware(void)
{
int one, ten, hund, minor;
char *ret;

ret = kmalloc(6, GFP_KERNEL);
if(ret == NULL)
return NULL;

if (set_command_mode()) {
one = send_isa_command(CMD_ISA_VERSION_INTEGER);
ten = send_isa_command(CMD_ISA_VERSION_TENTH);
hund = send_isa_command(CMD_ISA_VERSION_HUNDRETH);
minor = send_isa_command(CMD_ISA_VERSION_MINOR);
sprintf(ret, "%c.%c%c%c", one, ten, hund, minor);
}
else
sprintf(ret, "ERROR");

unset_command_mode();
return(ret);
}

static inline int pcwd_get_option_switches(void)
{
int option_switches=0;

if (set_command_mode()) {
/* Get switch settings */
option_switches = send_isa_command(CMD_ISA_SWITCH_SETTINGS);
}

unset_command_mode();
return(option_switches);
}

static void pcwd_show_card_info(void)
{
char *firmware;
int option_switches;

/* Get some extra info from the hardware (in command/debug/diag mode) */
if (pcwd_private.revision == PCWD_REVISION_A)
printk(KERN_INFO PFX "ISA-PC Watchdog (REV.A) detected at port 0x%04x\n", pcwd_private.io_addr);
else if (pcwd_private.revision == PCWD_REVISION_C) {
firmware = get_firmware();
printk(KERN_INFO PFX "ISA-PC Watchdog (REV.C) detected at port 0x%04x (Firmware version: %s)\n",
pcwd_private.io_addr, firmware);
kfree(firmware);
option_switches = pcwd_get_option_switches();
printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
option_switches,
((option_switches & 0x10) ? "ON" : "OFF"),
((option_switches & 0x08) ? "ON" : "OFF"));

/* Reprogram internal heartbeat to 2 seconds */
if (set_command_mode()) {
send_isa_command(CMD_ISA_DELAY_TIME_2SECS);
unset_command_mode();
}
}

if (pcwd_private.supports_temp)
printk(KERN_INFO PFX "Temperature Option Detected\n");

if (pcwd_private.boot_status & WDIOF_CARDRESET)
printk(KERN_INFO PFX "Previous reboot was caused by the card\n");

if (pcwd_private.boot_status & WDIOF_OVERHEAT) {
printk(KERN_EMERG PFX "Card senses a CPU Overheat. Panicking!\n");
printk(KERN_EMERG PFX "CPU Overheat\n");
}

if (pcwd_private.boot_status == 0)
printk(KERN_INFO PFX "No previous trip detected - Cold boot or reset\n");
}

static void pcwd_timer_ping(unsigned long data)
{
int wdrst_stat;
Expand Down Expand Up @@ -644,47 +721,9 @@ static inline int get_revision(void)
return r;
}

static inline char *get_firmware(void)
{
int one, ten, hund, minor;
char *ret;

ret = kmalloc(6, GFP_KERNEL);
if(ret == NULL)
return NULL;

if (set_command_mode()) {
one = send_isa_command(CMD_ISA_VERSION_INTEGER);
ten = send_isa_command(CMD_ISA_VERSION_TENTH);
hund = send_isa_command(CMD_ISA_VERSION_HUNDRETH);
minor = send_isa_command(CMD_ISA_VERSION_MINOR);
sprintf(ret, "%c.%c%c%c", one, ten, hund, minor);
}
else
sprintf(ret, "ERROR");

unset_command_mode();
return(ret);
}

static inline int get_option_switches(void)
{
int rv=0;

if (set_command_mode()) {
/* Get switch settings */
rv = send_isa_command(CMD_ISA_SWITCH_SETTINGS);
}

unset_command_mode();
return(rv);
}

static int __devinit pcwatchdog_init(int base_addr)
{
int ret;
char *firmware;
int option_switches;

cards_found++;
if (cards_found == 1)
Expand Down Expand Up @@ -732,46 +771,8 @@ static int __devinit pcwatchdog_init(int base_addr)
/* Check whether or not the card supports the temperature device */
pcwd_check_temperature_support();

/* Get some extra info from the hardware (in command/debug/diag mode) */
if (pcwd_private.revision == PCWD_REVISION_A)
printk(KERN_INFO PFX "ISA-PC Watchdog (REV.A) detected at port 0x%04x\n", pcwd_private.io_addr);
else if (pcwd_private.revision == PCWD_REVISION_C) {
firmware = get_firmware();
printk(KERN_INFO PFX "ISA-PC Watchdog (REV.C) detected at port 0x%04x (Firmware version: %s)\n",
pcwd_private.io_addr, firmware);
kfree(firmware);
option_switches = get_option_switches();
printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
option_switches,
((option_switches & 0x10) ? "ON" : "OFF"),
((option_switches & 0x08) ? "ON" : "OFF"));

/* Reprogram internal heartbeat to 2 seconds */
if (set_command_mode()) {
send_isa_command(CMD_ISA_DELAY_TIME_2SECS);
unset_command_mode();
}
} else {
/* Should NEVER happen, unless get_revision() fails. */
printk(KERN_INFO PFX "Unable to get revision\n");
release_region(pcwd_private.io_addr, (pcwd_private.revision == PCWD_REVISION_A) ? 2 : 4);
pcwd_private.io_addr = 0x0000;
return -1;
}

if (pcwd_private.supports_temp)
printk(KERN_INFO PFX "Temperature Option Detected\n");

if (pcwd_private.boot_status & WDIOF_CARDRESET)
printk(KERN_INFO PFX "Previous reboot was caused by the card\n");

if (pcwd_private.boot_status & WDIOF_OVERHEAT) {
printk(KERN_EMERG PFX "Card senses a CPU Overheat. Panicking!\n");
printk(KERN_EMERG PFX "CPU Overheat\n");
}

if (pcwd_private.boot_status == 0)
printk(KERN_INFO PFX "No previous trip detected - Cold boot or reset\n");
/* Show info about the card itself */
pcwd_show_card_info();

/* Check that the heartbeat value is within it's range ; if not reset to the default */
if (pcwd_set_heartbeat(heartbeat)) {
Expand Down

0 comments on commit af3b38d

Please sign in to comment.