diff options
Diffstat (limited to 'drivers/acpi/thermal.c')
| -rw-r--r-- | drivers/acpi/thermal.c | 801 |
1 files changed, 400 insertions, 401 deletions
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 79c3a686bc4..a24847c08f7 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -70,9 +70,9 @@ #define CELSIUS_TO_KELVIN(t) ((t+273)*10) #define _COMPONENT ACPI_THERMAL_COMPONENT -ACPI_MODULE_NAME ("acpi_thermal") +ACPI_MODULE_NAME("acpi_thermal") -MODULE_AUTHOR("Paul Diefenbaugh"); + MODULE_AUTHOR("Paul Diefenbaugh"); MODULE_DESCRIPTION(ACPI_THERMAL_DRIVER_NAME); MODULE_LICENSE("GPL"); @@ -80,143 +80,145 @@ static int tzp; module_param(tzp, int, 0); MODULE_PARM_DESC(tzp, "Thermal zone polling frequency, in 1/10 seconds.\n"); - -static int acpi_thermal_add (struct acpi_device *device); -static int acpi_thermal_remove (struct acpi_device *device, int type); +static int acpi_thermal_add(struct acpi_device *device); +static int acpi_thermal_remove(struct acpi_device *device, int type); static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file); static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file); static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file); -static ssize_t acpi_thermal_write_trip_points (struct file*,const char __user *,size_t,loff_t *); +static ssize_t acpi_thermal_write_trip_points(struct file *, + const char __user *, size_t, + loff_t *); static int acpi_thermal_cooling_open_fs(struct inode *inode, struct file *file); -static ssize_t acpi_thermal_write_cooling_mode (struct file*,const char __user *,size_t,loff_t *); +static ssize_t acpi_thermal_write_cooling_mode(struct file *, + const char __user *, size_t, + loff_t *); static int acpi_thermal_polling_open_fs(struct inode *inode, struct file *file); -static ssize_t acpi_thermal_write_polling(struct file*,const char __user *,size_t,loff_t *); +static ssize_t acpi_thermal_write_polling(struct file *, const char __user *, + size_t, loff_t *); static struct acpi_driver acpi_thermal_driver = { - .name = ACPI_THERMAL_DRIVER_NAME, - .class = ACPI_THERMAL_CLASS, - .ids = ACPI_THERMAL_HID, - .ops = { - .add = acpi_thermal_add, - .remove = acpi_thermal_remove, - }, + .name = ACPI_THERMAL_DRIVER_NAME, + .class = ACPI_THERMAL_CLASS, + .ids = ACPI_THERMAL_HID, + .ops = { + .add = acpi_thermal_add, + .remove = acpi_thermal_remove, + }, }; struct acpi_thermal_state { - u8 critical:1; - u8 hot:1; - u8 passive:1; - u8 active:1; - u8 reserved:4; - int active_index; + u8 critical:1; + u8 hot:1; + u8 passive:1; + u8 active:1; + u8 reserved:4; + int active_index; }; struct acpi_thermal_state_flags { - u8 valid:1; - u8 enabled:1; - u8 reserved:6; + u8 valid:1; + u8 enabled:1; + u8 reserved:6; }; struct acpi_thermal_critical { struct acpi_thermal_state_flags flags; - unsigned long temperature; + unsigned long temperature; }; struct acpi_thermal_hot { struct acpi_thermal_state_flags flags; - unsigned long temperature; + unsigned long temperature; }; struct acpi_thermal_passive { struct acpi_thermal_state_flags flags; - unsigned long temperature; - unsigned long tc1; - unsigned long tc2; - unsigned long tsp; - struct acpi_handle_list devices; + unsigned long temperature; + unsigned long tc1; + unsigned long tc2; + unsigned long tsp; + struct acpi_handle_list devices; }; struct acpi_thermal_active { struct acpi_thermal_state_flags flags; - unsigned long temperature; - struct acpi_handle_list devices; + unsigned long temperature; + struct acpi_handle_list devices; }; struct acpi_thermal_trips { struct acpi_thermal_critical critical; - struct acpi_thermal_hot hot; + struct acpi_thermal_hot hot; struct acpi_thermal_passive passive; struct acpi_thermal_active active[ACPI_THERMAL_MAX_ACTIVE]; }; struct acpi_thermal_flags { - u8 cooling_mode:1; /* _SCP */ - u8 devices:1; /* _TZD */ - u8 reserved:6; + u8 cooling_mode:1; /* _SCP */ + u8 devices:1; /* _TZD */ + u8 reserved:6; }; struct acpi_thermal { - acpi_handle handle; - acpi_bus_id name; - unsigned long temperature; - unsigned long last_temperature; - unsigned long polling_frequency; - u8 cooling_mode; - volatile u8 zombie; + acpi_handle handle; + acpi_bus_id name; + unsigned long temperature; + unsigned long last_temperature; + unsigned long polling_frequency; + u8 cooling_mode; + volatile u8 zombie; struct acpi_thermal_flags flags; struct acpi_thermal_state state; struct acpi_thermal_trips trips; - struct acpi_handle_list devices; - struct timer_list timer; + struct acpi_handle_list devices; + struct timer_list timer; }; static struct file_operations acpi_thermal_state_fops = { - .open = acpi_thermal_state_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, + .open = acpi_thermal_state_open_fs, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, }; static struct file_operations acpi_thermal_temp_fops = { - .open = acpi_thermal_temp_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, + .open = acpi_thermal_temp_open_fs, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, }; static struct file_operations acpi_thermal_trip_fops = { - .open = acpi_thermal_trip_open_fs, - .read = seq_read, - .write = acpi_thermal_write_trip_points, - .llseek = seq_lseek, - .release = single_release, + .open = acpi_thermal_trip_open_fs, + .read = seq_read, + .write = acpi_thermal_write_trip_points, + .llseek = seq_lseek, + .release = single_release, }; static struct file_operations acpi_thermal_cooling_fops = { - .open = acpi_thermal_cooling_open_fs, - .read = seq_read, - .write = acpi_thermal_write_cooling_mode, - .llseek = seq_lseek, - .release = single_release, + .open = acpi_thermal_cooling_open_fs, + .read = seq_read, + .write = acpi_thermal_write_cooling_mode, + .llseek = seq_lseek, + .release = single_release, }; static struct file_operations acpi_thermal_polling_fops = { - .open = acpi_thermal_polling_open_fs, - .read = seq_read, - .write = acpi_thermal_write_polling, - .llseek = seq_lseek, - .release = single_release, + .open = acpi_thermal_polling_open_fs, + .read = seq_read, + .write = acpi_thermal_write_polling, + .llseek = seq_lseek, + .release = single_release, }; /* -------------------------------------------------------------------------- Thermal Zone Management -------------------------------------------------------------------------- */ -static int -acpi_thermal_get_temperature ( - struct acpi_thermal *tz) +static int acpi_thermal_get_temperature(struct acpi_thermal *tz) { - acpi_status status = AE_OK; + acpi_status status = AE_OK; ACPI_FUNCTION_TRACE("acpi_thermal_get_temperature"); @@ -225,41 +227,39 @@ acpi_thermal_get_temperature ( tz->last_temperature = tz->temperature; - status = acpi_evaluate_integer(tz->handle, "_TMP", NULL, &tz->temperature); + status = + acpi_evaluate_integer(tz->handle, "_TMP", NULL, &tz->temperature); if (ACPI_FAILURE(status)) return_VALUE(-ENODEV); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Temperature is %lu dK\n", tz->temperature)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Temperature is %lu dK\n", + tz->temperature)); return_VALUE(0); } - -static int -acpi_thermal_get_polling_frequency ( - struct acpi_thermal *tz) +static int acpi_thermal_get_polling_frequency(struct acpi_thermal *tz) { - acpi_status status = AE_OK; + acpi_status status = AE_OK; ACPI_FUNCTION_TRACE("acpi_thermal_get_polling_frequency"); if (!tz) return_VALUE(-EINVAL); - status = acpi_evaluate_integer(tz->handle, "_TZP", NULL, &tz->polling_frequency); + status = + acpi_evaluate_integer(tz->handle, "_TZP", NULL, + &tz->polling_frequency); if (ACPI_FAILURE(status)) return_VALUE(-ENODEV); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Polling frequency is %lu dS\n", tz->polling_frequency)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Polling frequency is %lu dS\n", + tz->polling_frequency)); return_VALUE(0); } - -static int -acpi_thermal_set_polling ( - struct acpi_thermal *tz, - int seconds) +static int acpi_thermal_set_polling(struct acpi_thermal *tz, int seconds) { ACPI_FUNCTION_TRACE("acpi_thermal_set_polling"); @@ -268,21 +268,19 @@ acpi_thermal_set_polling ( tz->polling_frequency = seconds * 10; /* Convert value to deci-seconds */ - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Polling frequency set to %lu seconds\n", tz->polling_frequency)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Polling frequency set to %lu seconds\n", + tz->polling_frequency)); return_VALUE(0); } - -static int -acpi_thermal_set_cooling_mode ( - struct acpi_thermal *tz, - int mode) +static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode) { - acpi_status status = AE_OK; - union acpi_object arg0 = {ACPI_TYPE_INTEGER}; - struct acpi_object_list arg_list = {1, &arg0}; - acpi_handle handle = NULL; + acpi_status status = AE_OK; + union acpi_object arg0 = { ACPI_TYPE_INTEGER }; + struct acpi_object_list arg_list = { 1, &arg0 }; + acpi_handle handle = NULL; ACPI_FUNCTION_TRACE("acpi_thermal_set_cooling_mode"); @@ -303,19 +301,16 @@ acpi_thermal_set_cooling_mode ( tz->cooling_mode = mode; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Cooling mode [%s]\n", - mode?"passive":"active")); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Cooling mode [%s]\n", + mode ? "passive" : "active")); return_VALUE(0); } - -static int -acpi_thermal_get_trip_points ( - struct acpi_thermal *tz) +static int acpi_thermal_get_trip_points(struct acpi_thermal *tz) { - acpi_status status = AE_OK; - int i = 0; + acpi_status status = AE_OK; + int i = 0; ACPI_FUNCTION_TRACE("acpi_thermal_get_trip_points"); @@ -324,111 +319,128 @@ acpi_thermal_get_trip_points ( /* Critical Shutdown (required) */ - status = acpi_evaluate_integer(tz->handle, "_CRT", NULL, - &tz->trips.critical.temperature); + status = acpi_evaluate_integer(tz->handle, "_CRT", NULL, + &tz->trips.critical.temperature); if (ACPI_FAILURE(status)) { tz->trips.critical.flags.valid = 0; ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "No critical threshold\n")); return_VALUE(-ENODEV); - } - else { + } else { tz->trips.critical.flags.valid = 1; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found critical threshold [%lu]\n", tz->trips.critical.temperature)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Found critical threshold [%lu]\n", + tz->trips.critical.temperature)); } /* Critical Sleep (optional) */ - status = acpi_evaluate_integer(tz->handle, "_HOT", NULL, &tz->trips.hot.temperature); + status = + acpi_evaluate_integer(tz->handle, "_HOT", NULL, + &tz->trips.hot.temperature); if (ACPI_FAILURE(status)) { tz->trips.hot.flags.valid = 0; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No hot threshold\n")); - } - else { + } else { tz->trips.hot.flags.valid = 1; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found hot threshold [%lu]\n", tz->trips.hot.temperature)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found hot threshold [%lu]\n", + tz->trips.hot.temperature)); } /* Passive: Processors (optional) */ - status = acpi_evaluate_integer(tz->handle, "_PSV", NULL, &tz->trips.passive.temperature); + status = + acpi_evaluate_integer(tz->handle, "_PSV", NULL, + &tz->trips.passive.temperature); if (ACPI_FAILURE(status)) { tz->trips.passive.flags.valid = 0; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No passive threshold\n")); - } - else { + } else { tz->trips.passive.flags.valid = 1; - status = acpi_evaluate_integer(tz->handle, "_TC1", NULL, &tz->trips.passive.tc1); + status = + acpi_evaluate_integer(tz->handle, "_TC1", NULL, + &tz->trips.passive.tc1); if (ACPI_FAILURE(status)) tz->trips.passive.flags.valid = 0; - status = acpi_evaluate_integer(tz->handle, "_TC2", NULL, &tz->trips.passive.tc2); + status = + acpi_evaluate_integer(tz->handle, "_TC2", NULL, + &tz->trips.passive.tc2); if (ACPI_FAILURE(status)) tz->trips.passive.flags.valid = 0; - status = acpi_evaluate_integer(tz->handle, "_TSP", NULL, &tz->trips.passive.tsp); + status = + acpi_evaluate_integer(tz->handle, "_TSP", NULL, + &tz->trips.passive.tsp); if (ACPI_FAILURE(status)) tz->trips.passive.flags.valid = 0; - status = acpi_evaluate_reference(tz->handle, "_PSL", NULL, &tz->trips.passive.devices); + status = + acpi_evaluate_reference(tz->handle, "_PSL", NULL, + &tz->trips.passive.devices); if (ACPI_FAILURE(status)) tz->trips.passive.flags.valid = 0; if (!tz->trips.passive.flags.valid) - ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Invalid passive threshold\n")); + ACPI_DEBUG_PRINT((ACPI_DB_WARN, + "Invalid passive threshold\n")); else - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found passive threshold [%lu]\n", tz->trips.passive.temperature)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Found passive threshold [%lu]\n", + tz->trips.passive.temperature)); } /* Active: Fans, etc. (optional) */ - for (i=0; i<ACPI_THERMAL_MAX_ACTIVE; i++) { + for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) { - char name[5] = {'_','A','C',('0'+i),'\0'}; + char name[5] = { '_', 'A', 'C', ('0' + i), '\0' }; - status = acpi_evaluate_integer(tz->handle, name, NULL, &tz->trips.active[i].temperature); + status = + acpi_evaluate_integer(tz->handle, name, NULL, + &tz->trips.active[i].temperature); if (ACPI_FAILURE(status)) break; name[2] = 'L'; - status = acpi_evaluate_reference(tz->handle, name, NULL, &tz->trips.active[i].devices); + status = + acpi_evaluate_reference(tz->handle, name, NULL, + &tz->trips.active[i].devices); if (ACPI_SUCCESS(status)) { tz->trips.active[i].flags.valid = 1; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found active threshold [%d]:[%lu]\n", i, tz->trips.active[i].temperature)); - } - else - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid active threshold [%d]\n", i)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Found active threshold [%d]:[%lu]\n", + i, tz->trips.active[i].temperature)); + } else + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Invalid active threshold [%d]\n", + i)); } return_VALUE(0); } - -static int -acpi_thermal_get_devices ( - struct acpi_thermal *tz) +static int acpi_thermal_get_devices(struct acpi_thermal *tz) { - acpi_status status = AE_OK; + acpi_status status = AE_OK; ACPI_FUNCTION_TRACE("acpi_thermal_get_devices"); if (!tz) return_VALUE(-EINVAL); - status = acpi_evaluate_reference(tz->handle, "_TZD", NULL, &tz->devices); + status = + acpi_evaluate_reference(tz->handle, "_TZD", NULL, &tz->devices); if (ACPI_FAILURE(status)) return_VALUE(-ENODEV); return_VALUE(0); } - -static int -acpi_thermal_call_usermode ( - char *path) +static int acpi_thermal_call_usermode(char *path) { - char *argv[2] = {NULL, NULL}; - char *envp[3] = {NULL, NULL, NULL}; + char *argv[2] = { NULL, NULL }; + char *envp[3] = { NULL, NULL, NULL }; ACPI_FUNCTION_TRACE("acpi_thermal_call_usermode"); @@ -440,19 +452,16 @@ acpi_thermal_call_usermode ( /* minimal command environment */ envp[0] = "HOME=/"; envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin"; - + call_usermodehelper(argv[0], argv, envp, 0); return_VALUE(0); } - -static int -acpi_thermal_critical ( - struct acpi_thermal *tz) +static int acpi_thermal_critical(struct acpi_thermal *tz) { - int result = 0; - struct acpi_device *device = NULL; + int result = 0; + struct acpi_device *device = NULL; ACPI_FUNCTION_TRACE("acpi_thermal_critical"); @@ -462,29 +471,28 @@ acpi_thermal_critical ( if (tz->temperature >= tz->trips.critical.temperature) { ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Critical trip point\n")); tz->trips.critical.flags.enabled = 1; - } - else if (tz->trips.critical.flags.enabled) + } else if (tz->trips.critical.flags.enabled) tz->trips.critical.flags.enabled = 0; result = acpi_bus_get_device(tz->handle, &device); if (result) return_VALUE(result); - printk(KERN_EMERG "Critical temperature reached (%ld C), shutting down.\n", KELVIN_TO_CELSIUS(tz->temperature)); - acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_CRITICAL, tz->trips.critical.flags.enabled); + printk(KERN_EMERG + "Critical temperature reached (%ld C), shutting down.\n", + KELVIN_TO_CELSIUS(tz->temperature)); + acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_CRITICAL, + tz->trips.critical.flags.enabled); acpi_thermal_call_usermode(ACPI_THERMAL_PATH_POWEROFF); return_VALUE(0); } - -static int -acpi_thermal_hot ( - struct acpi_thermal *tz) +static int acpi_thermal_hot(struct acpi_thermal *tz) { - int result = 0; - struct acpi_device *device = NULL; + int result = 0; + struct acpi_device *device = NULL; ACPI_FUNCTION_TRACE("acpi_thermal_hot"); @@ -494,30 +502,27 @@ acpi_thermal_hot ( if (tz->temperature >= tz->trips.hot.temperature) { ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Hot trip point\n")); tz->trips.hot.flags.enabled = 1; - } - else if (tz->trips.hot.flags.enabled) + } else if (tz->trips.hot.flags.enabled) tz->trips.hot.flags.enabled = 0; result = acpi_bus_get_device(tz->handle, &device); if (result) return_VALUE(result); - acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_HOT, tz->trips.hot.flags.enabled); + acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_HOT, + tz->trips.hot.flags.enabled); /* TBD: Call user-mode "sleep(S4)" function */ return_VALUE(0); } - -static int -acpi_thermal_passive ( - struct acpi_thermal *tz) +static int acpi_thermal_passive(struct acpi_thermal *tz) { - int result = 0; + int result = 0; struct acpi_thermal_passive *passive = NULL; - int trend = 0; - int i = 0; + int trend = 0; + int i = 0; ACPI_FUNCTION_TRACE("acpi_thermal_passive"); @@ -534,25 +539,29 @@ acpi_thermal_passive ( * accordingly. Note that we assume symmetry. */ if (tz->temperature >= passive->temperature) { - trend = (passive->tc1 * (tz->temperature - tz->last_temperature)) + (passive->tc2 * (tz->temperature - passive->temperature)); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "trend[%d]=(tc1[%lu]*(tmp[%lu]-last[%lu]))+(tc2[%lu]*(tmp[%lu]-psv[%lu]))\n", - trend, passive->tc1, tz->temperature, - tz->last_temperature, passive->tc2, - tz->temperature, passive->temperature)); + trend = + (passive->tc1 * (tz->temperature - tz->last_temperature)) + + (passive->tc2 * (tz->temperature - passive->temperature)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "trend[%d]=(tc1[%lu]*(tmp[%lu]-last[%lu]))+(tc2[%lu]*(tmp[%lu]-psv[%lu]))\n", + trend, passive->tc1, tz->temperature, + tz->last_temperature, passive->tc2, + tz->temperature, passive->temperature)); tz->trips.passive.flags.enabled = 1; /* Heating up? */ if (trend > 0) - for (i=0; i<passive->devices.count; i++) - acpi_processor_set_thermal_limit( - passive->devices.handles[i], - ACPI_PROCESSOR_LIMIT_INCREMENT); + for (i = 0; i < passive->devices.count; i++) + acpi_processor_set_thermal_limit(passive-> + devices. + handles[i], + ACPI_PROCESSOR_LIMIT_INCREMENT); /* Cooling off? */ else if (trend < 0) - for (i=0; i<passive->devices.count; i++) - acpi_processor_set_thermal_limit( - passive->devices.handles[i], - ACPI_PROCESSOR_LIMIT_DECREMENT); + for (i = 0; i < passive->devices.count; i++) + acpi_processor_set_thermal_limit(passive-> + devices. + handles[i], + ACPI_PROCESSOR_LIMIT_DECREMENT); } /* @@ -563,37 +572,35 @@ acpi_thermal_passive ( * assume symmetry. */ else if (tz->trips.passive.flags.enabled) { - for (i=0; i<passive->devices.count; i++) - result = acpi_processor_set_thermal_limit( - passive->devices.handles[i], - ACPI_PROCESSOR_LIMIT_DECREMENT); + for (i = 0; i < passive->devices.count; i++) + result = + acpi_processor_set_thermal_limit(passive->devices. + handles[i], + ACPI_PROCESSOR_LIMIT_DECREMENT); if (result == 1) { tz->trips.passive.flags.enabled = 0; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Disabling passive cooling (zone is cool)\n")); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Disabling passive cooling (zone is cool)\n")); } } return_VALUE(0); } - -static int -acpi_thermal_active ( - struct acpi_thermal *tz) +static int acpi_thermal_active(struct acpi_thermal *tz) { - int result = 0; + int result = 0; struct acpi_thermal_active *active = NULL; - int i = 0; - int j = 0; - unsigned long maxtemp = 0; + int i = 0; + int j = 0; + unsigned long maxtemp = 0; ACPI_FUNCTION_TRACE("acpi_thermal_active"); if (!tz) return_VALUE(-EINVAL); - for (i=0; i<ACPI_THERMAL_MAX_ACTIVE; i++) { + for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) { active = &(tz->trips.active[i]); if (!active || !active->flags.valid) @@ -607,16 +614,27 @@ acpi_thermal_active ( */ if (tz->temperature >= active->temperature) { if (active->temperature > maxtemp) - tz->state.active_index = i, maxtemp = active->temperature; + tz->state.active_index = i, maxtemp = + active->temperature; if (!active->flags.enabled) { for (j = 0; j < active->devices.count; j++) { - result = acpi_bus_set_power(active->devices.handles[j], ACPI_STATE_D0); + result = + acpi_bus_set_power(active->devices. + handles[j], + ACPI_STATE_D0); if (result) { - ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Unable to turn cooling device [%p] 'on'\n", active->devices.handles[j])); + ACPI_DEBUG_PRINT((ACPI_DB_WARN, + "Unable to turn cooling device [%p] 'on'\n", + active-> + devices. + handles[j])); continue; } active->flags.enabled = 1; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Cooling device [%p] now 'on'\n", active->devices.handles[j])); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Cooling device [%p] now 'on'\n", + active->devices. + handles[j])); } } } @@ -628,13 +646,21 @@ acpi_thermal_active ( */ else if (active->flags.enabled) { for (j = 0; j < active->devices.count; j++) { - result = acpi_bus_set_power(active->devices.handles[j], ACPI_STATE_D3); + result = + acpi_bus_set_power(active->devices. + handles[j], + ACPI_STATE_D3); if (result) { - ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Unable to turn cooling device [%p] 'off'\n", active->devices.handles[j])); + ACPI_DEBUG_PRINT((ACPI_DB_WARN, + "Unable to turn cooling device [%p] 'off'\n", + active->devices. + handles[j])); continue; } active->flags.enabled = 0; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Cooling device [%p] now 'off'\n", active->devices.handles[j])); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Cooling device [%p] now 'off'\n", + active->devices.handles[j])); } } } @@ -642,28 +668,22 @@ acpi_thermal_active ( return_VALUE(0); } +static void acpi_thermal_check(void *context); -static void acpi_thermal_check (void *context); - -static void -acpi_thermal_run ( - unsigned long data) +static void acpi_thermal_run(unsigned long data) { struct acpi_thermal *tz = (struct acpi_thermal *)data; if (!tz->zombie) - acpi_os_queue_for_execution(OSD_PRIORITY_GPE, - acpi_thermal_check, (void *) data); + acpi_os_queue_for_execution(OSD_PRIORITY_GPE, + acpi_thermal_check, (void *)data); } - -static void -acpi_thermal_check ( - void *data) +static void acpi_thermal_check(void *data) { - int result = 0; - struct acpi_thermal *tz = (struct acpi_thermal *) data; - unsigned long sleep_time = 0; - int i = 0; + int result = 0; + struct acpi_thermal *tz = (struct acpi_thermal *)data; + unsigned long sleep_time = 0; + int i = 0; struct acpi_thermal_state state; ACPI_FUNCTION_TRACE("acpi_thermal_check"); @@ -678,9 +698,9 @@ acpi_thermal_check ( result = acpi_thermal_get_temperature(tz); if (result) return_VOID; - + memset(&tz->state, 0, sizeof(tz->state)); - + /* * Check Trip Points * ----------------- @@ -690,14 +710,18 @@ acpi_thermal_check ( * individual policy decides when it is exited (e.g. hysteresis). */ if (tz->trips.critical.flags.valid) - state.critical |= (tz->temperature >= tz->trips.critical.temperature); + state.critical |= + (tz->temperature >= tz->trips.critical.temperature); if (tz->trips.hot.flags.valid) state.hot |= (tz->temperature >= tz->trips.hot.temperature); if (tz->trips.passive.flags.valid) - state.passive |= (tz->temperature >= tz->trips.passive.temperature); - for (i=0; i<ACPI_THERMAL_MAX_ACTIVE; i++) + state.passive |= + (tz->temperature >= tz->trips.passive.temperature); + for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) if (tz->trips.active[i].flags.valid) - state.active |= (tz->temperature >= tz->trips.active[i].temperature); + state.active |= + (tz->temperature >= + tz->trips.active[i].temperature); /* * Invoke Policy @@ -726,7 +750,7 @@ acpi_thermal_check ( tz->state.hot = 1; if (tz->trips.passive.flags.enabled) tz->state.passive = 1; - for (i=0; i<ACPI_THERMAL_MAX_ACTIVE; i++) + for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) if (tz->trips.active[i].flags.enabled) tz->state.active = 1; @@ -744,8 +768,8 @@ acpi_thermal_check ( else if (tz->polling_frequency > 0) sleep_time = tz->polling_frequency * 100; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: temperature[%lu] sleep[%lu]\n", - tz->name, tz->temperature, sleep_time)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: temperature[%lu] sleep[%lu]\n", + tz->name, tz->temperature, sleep_time)); /* * Schedule Next Poll @@ -754,12 +778,11 @@ acpi_thermal_check ( if (!sleep_time) { if (timer_pending(&(tz->timer))) del_timer(&(tz->timer)); - } - else { + } else { if (timer_pending(&(tz->timer))) mod_timer(&(tz->timer), (HZ * sleep_time) / 1000); else { - tz->timer.data = (unsigned long) tz; + tz->timer.data = (unsigned long)tz; tz->timer.function = acpi_thermal_run; tz->timer.expires = jiffies + (HZ * sleep_time) / 1000; add_timer(&(tz->timer)); @@ -769,16 +792,15 @@ acpi_thermal_check ( return_VOID; } - /* -------------------------------------------------------------------------- FS Interface (/proc) -------------------------------------------------------------------------- */ -static struct proc_dir_entry *acpi_thermal_dir; +static struct proc_dir_entry *acpi_thermal_dir; static int acpi_thermal_state_seq_show(struct seq_file *seq, void *offset) { - struct acpi_thermal *tz = (struct acpi_thermal *)seq->private; + struct acpi_thermal *tz = (struct acpi_thermal *)seq->private; ACPI_FUNCTION_TRACE("acpi_thermal_state_seq_show"); @@ -787,7 +809,8 @@ static int acpi_thermal_state_seq_show(struct seq_file *seq, void *offset) seq_puts(seq, "state: "); - if (!tz->state.critical && !tz->state.hot && !tz->state.passive && !tz->state.active) + if (!tz->state.critical && !tz->state.hot && !tz->state.passive + && !tz->state.active) seq_puts(seq, "ok\n"); else { if (tz->state.critical) @@ -801,7 +824,7 @@ static int acpi_thermal_state_seq_show(struct seq_file *seq, void *offset) seq_puts(seq, "\n"); } -end: + end: return_VALUE(0); } @@ -810,11 +833,10 @@ static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file) return single_open(file, acpi_thermal_state_seq_show, PDE(inode)->data); } - static int acpi_thermal_temp_seq_show(struct seq_file *seq, void *offset) { - int result = 0; - struct acpi_thermal *tz = (struct acpi_thermal *)seq->private; + int result = 0; + struct acpi_thermal *tz = (struct acpi_thermal *)seq->private; ACPI_FUNCTION_TRACE("acpi_thermal_temp_seq_show"); @@ -825,10 +847,10 @@ static int acpi_thermal_temp_seq_show(struct seq_file *seq, void *offset) if (result) goto end; - seq_printf(seq, "temperature: %ld C\n", - KELVIN_TO_CELSIUS(tz->temperature)); + seq_printf(seq, "temperature: %ld C\n", + KELVIN_TO_CELSIUS(tz->temperature)); -end: + end: return_VALUE(0); } @@ -837,12 +859,11 @@ static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file) return single_open(file, acpi_thermal_temp_seq_show, PDE(inode)->data); } - static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset) { - struct acpi_thermal *tz = (struct acpi_thermal *)seq->private; - int i = 0; - int j = 0; + struct acpi_thermal *tz = (struct acpi_thermal *)seq->private; + int i = 0; + int j = 0; ACPI_FUNCTION_TRACE("acpi_thermal_trip_seq_show"); @@ -851,21 +872,22 @@ static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset) if (tz->trips.critical.flags.valid) seq_printf(seq, "critical (S5): %ld C\n", - KELVIN_TO_CELSIUS(tz->trips.critical.temperature)); + KELVIN_TO_CELSIUS(tz->trips.critical.temperature)); if (tz->trips.hot.flags.valid) seq_printf(seq, "hot (S4): %ld C\n", - KELVIN_TO_CELSIUS(tz->trips.hot.temperature)); + KELVIN_TO_CELSIUS(tz->trips.hot.temperature)); if (tz->trips.passive.flags.valid) { - seq_printf(seq, "passive: %ld C: tc1=%lu tc2=%lu tsp=%lu devices=", - KELVIN_TO_CELSIUS(tz->trips.passive.temperature), - tz->trips.passive.tc1, - tz->trips.passive.tc2, - tz->trips.passive.tsp); - for (j=0; j<tz->trips.passive.devices.count; j++) { - - seq_printf(seq, "0x%p ", tz->trips.passive.devices.handles[j]); + seq_printf(seq, + "passive: %ld C: tc1=%lu tc2=%lu tsp=%lu devices=", + KELVIN_TO_CELSIUS(tz->trips.passive.temperature), + tz->trips.passive.tc1, tz->trips.passive.tc2, + tz->trips.passive.tsp); + for (j = 0; j < tz->trips.passive.devices.count; j++) { + + seq_printf(seq, "0x%p ", + tz->trips.passive.devices.handles[j]); } seq_puts(seq, "\n"); } @@ -874,14 +896,15 @@ static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset) if (!(tz->trips.active[i].flags.valid)) break; seq_printf(seq, "active[%d]: %ld C: devices=", - i, KELVIN_TO_CELSIUS(tz->trips.active[i].temperature)); - for (j = 0; j < tz->trips.active[i].devices.count; j++) + i, + KELVIN_TO_CELSIUS(tz->trips.active[i].temperature)); + for (j = 0; j < tz->trips.active[i].devices.count; j++) seq_printf(seq, "0x%p ", - tz->trips.active[i].devices.handles[j]); + tz->trips.active[i].devices.handles[j]); seq_puts(seq, "\n"); } -end: + end: return_VALUE(0); } @@ -891,30 +914,28 @@ static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file) } static ssize_t -acpi_thermal_write_trip_points ( - struct file *file, - const char __user *buffer, - size_t count, - loff_t *ppos) +acpi_thermal_write_trip_points(struct file *file, + const char __user * buffer, + size_t count, loff_t * ppos) { - struct seq_file *m = (struct seq_file *)file->private_data; - struct acpi_thermal *tz = (struct acpi_thermal *)m->private; + struct seq_file *m = (struct seq_file *)file->private_data; + struct acpi_thermal *tz = (struct acpi_thermal *)m->private; - char *limit_string; - int num, critical, hot, passive; - int *active; - int i = 0; + char *limit_string; + int num, critical, hot, passive; + int *active; + int i = 0; ACPI_FUNCTION_TRACE("acpi_thermal_write_trip_points"); limit_string = kmalloc(ACPI_THERMAL_MAX_LIMIT_STR_LEN, GFP_KERNEL); - if(!limit_string) + if (!limit_string) return_VALUE(-ENOMEM); memset(limit_string, 0, ACPI_THERMAL_MAX_LIMIT_STR_LEN); - active = kmalloc(ACPI_THERMAL_MAX_ACTIVE *sizeof(int), GFP_KERNEL); - if(!active) + active = kmalloc(ACPI_THERMAL_MAX_ACTIVE * sizeof(int), GFP_KERNEL); + if (!active) return_VALUE(-ENOMEM); if (!tz || (count > ACPI_THERMAL_MAX_LIMIT_STR_LEN - 1)) { @@ -922,20 +943,21 @@ acpi_thermal_write_trip_points ( count = -EINVAL; goto end; } - + if (copy_from_user(limit_string, buffer, count)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid data\n")); count = -EFAULT; goto end; } - + limit_string[count] = '\0'; num = sscanf(limit_string, "%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d", - &critical, &hot, &passive, - &active[0], &active[1], &active[2], &active[3], &active[4], - &active[5], &active[6], &active[7], &active[8], &active[9]); - if(!(num >=5 && num < (ACPI_THERMAL_MAX_ACTIVE + 3))) { + &critical, &hot, &passive, + &active[0], &active[1], &active[2], &active[3], &active[4], + &active[5], &active[6], &active[7], &active[8], + &active[9]); + if (!(num >= 5 && num < (ACPI_THERMAL_MAX_ACTIVE + 3))) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid data format\n")); count = -EINVAL; goto end; @@ -949,17 +971,16 @@ acpi_thermal_write_trip_points ( break; tz->trips.active[i].temperature = CELSIUS_TO_KELVIN(active[i]); } - -end: + + end: kfree(active); kfree(limit_string); return_VALUE(count); } - static int acpi_thermal_cooling_seq_show(struct seq_file *seq, void *offset) { - struct acpi_thermal *tz = (struct acpi_thermal *)seq->private; + struct acpi_thermal *tz = (struct acpi_thermal *)seq->private; ACPI_FUNCTION_TRACE("acpi_thermal_cooling_seq_show"); @@ -970,33 +991,31 @@ static int acpi_thermal_cooling_seq_show(struct seq_file *seq, void *offset) seq_puts(seq, "<setting not supported>\n"); } - if ( tz->cooling_mode == ACPI_THERMAL_MODE_CRITICAL ) + if (tz->cooling_mode == ACPI_THERMAL_MODE_CRITICAL) seq_printf(seq, "cooling mode: critical\n"); else seq_printf(seq, "cooling mode: %s\n", - tz->cooling_mode?"passive":"active"); + tz->cooling_mode ? "passive" : "active"); -end: + end: return_VALUE(0); } static int acpi_thermal_cooling_open_fs(struct inode *inode, struct file *file) { return single_open(file, acpi_thermal_cooling_seq_show, - PDE(inode)->data); + PDE(inode)->data); } static ssize_t -acpi_thermal_write_cooling_mode ( - struct file *file, - const char __user *buffer, - size_t count, - loff_t *ppos) +acpi_thermal_write_cooling_mode(struct file *file, + const char __user * buffer, + size_t count, loff_t * ppos) { - struct seq_file *m = (struct seq_file *)file->private_data; - struct acpi_thermal *tz = (struct acpi_thermal *)m->private; - int result = 0; - char mode_string[12] = {'\0'}; + struct seq_file *m = (struct seq_file *)file->private_data; + struct acpi_thermal *tz = (struct acpi_thermal *)m->private; + int result = 0; + char mode_string[12] = { '\0' }; ACPI_FUNCTION_TRACE("acpi_thermal_write_cooling_mode"); @@ -1008,11 +1027,12 @@ acpi_thermal_write_cooling_mode ( if (copy_from_user(mode_string, buffer, count)) return_VALUE(-EFAULT); - + mode_string[count] = '\0'; - - result = acpi_thermal_set_cooling_mode(tz, - simple_strtoul(mode_string, NULL, 0)); + + result = acpi_thermal_set_cooling_mode(tz, + simple_strtoul(mode_string, NULL, + 0)); if (result) return_VALUE(result); @@ -1021,10 +1041,9 @@ acpi_thermal_write_cooling_mode ( return_VALUE(count); } - static int acpi_thermal_polling_seq_show(struct seq_file *seq, void *offset) { - struct acpi_thermal *tz = (struct acpi_thermal *)seq->private; + struct acpi_thermal *tz = (struct acpi_thermal *)seq->private; ACPI_FUNCTION_TRACE("acpi_thermal_polling_seq_show"); @@ -1037,43 +1056,41 @@ static int acpi_thermal_polling_seq_show(struct seq_file *seq, void *offset) } seq_printf(seq, "polling frequency: %lu seconds\n", - (tz->polling_frequency / 10)); + (tz->polling_frequency / 10)); -end: + end: return_VALUE(0); } static int acpi_thermal_polling_open_fs(struct inode *inode, struct file *file) { return single_open(file, acpi_thermal_polling_seq_show, - PDE(inode)->data); + PDE(inode)->data); } static ssize_t -acpi_thermal_write_polling ( - struct file *file, - const char __user *buffer, - size_t count, - loff_t *ppos) +acpi_thermal_write_polling(struct file *file, + const char __user * buffer, + size_t count, loff_t * ppos) { - struct seq_file *m = (struct seq_file *)file->private_data; - struct acpi_thermal *tz = (struct acpi_thermal *)m->private; - int result = 0; - char polling_string[12] = {'\0'}; - int seconds = 0; + struct seq_file *m = (struct seq_file *)file->private_data; + struct acpi_thermal *tz = (struct acpi_thermal *)m->private; + int result = 0; + char polling_string[12] = { '\0' }; + int seconds = 0; ACPI_FUNCTION_TRACE("acpi_thermal_write_polling"); if (!tz || (count > sizeof(polling_string) - 1)) return_VALUE(-EINVAL); - + if (copy_from_user(polling_string, buffer, count)) return_VALUE(-EFAULT); - + polling_string[count] = '\0'; seconds = simple_strtoul(polling_string, NULL, 0); - + result = acpi_thermal_set_polling(tz, seconds); if (result) return_VALUE(result); @@ -1083,18 +1100,15 @@ acpi_thermal_write_polling ( return_VALUE(count); } - -static int -acpi_thermal_add_fs ( - struct acpi_device *device) +static int acpi_thermal_add_fs(struct acpi_device *device) { - struct proc_dir_entry *entry = NULL; + struct proc_dir_entry *entry = NULL; ACPI_FUNCTION_TRACE("acpi_thermal_add_fs"); if (!acpi_device_dir(device)) { acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), - acpi_thermal_dir); + acpi_thermal_dir); if (!acpi_device_dir(device)) return_VALUE(-ENODEV); acpi_device_dir(device)->owner = THIS_MODULE; @@ -1102,11 +1116,11 @@ acpi_thermal_add_fs ( /* 'state' [R] */ entry = create_proc_entry(ACPI_THERMAL_FILE_STATE, - S_IRUGO, acpi_device_dir(device)); + S_IRUGO, acpi_device_dir(device)); if (!entry) ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Unable to create '%s' fs entry\n", - ACPI_THERMAL_FILE_STATE)); + "Unable to create '%s' fs entry\n", + ACPI_THERMAL_FILE_STATE)); else { entry->proc_fops = &acpi_thermal_state_fops; entry->data = acpi_driver_data(device); @@ -1115,11 +1129,11 @@ acpi_thermal_add_fs ( /* 'temperature' [R] */ entry = create_proc_entry(ACPI_THERMAL_FILE_TEMPERATURE, - S_IRUGO, acpi_device_dir(device)); + S_IRUGO, acpi_device_dir(device)); if (!entry) ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Unable to create '%s' fs entry\n", - ACPI_THERMAL_FILE_TEMPERATURE)); + "Unable to create '%s' fs entry\n", + ACPI_THERMAL_FILE_TEMPERATURE)); else { entry->proc_fops = &acpi_thermal_temp_fops; entry->data = acpi_driver_data(device); @@ -1128,11 +1142,12 @@ acpi_thermal_add_fs ( /* 'trip_points' [R/W] */ entry = create_proc_entry(ACPI_THERMAL_FILE_TRIP_POINTS, - S_IFREG|S_IRUGO|S_IWUSR, acpi_device_dir(device)); + S_IFREG | S_IRUGO | S_IWUSR, + acpi_device_dir(device)); if (!entry) ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Unable to create '%s' fs entry\n", - ACPI_THERMAL_FILE_TRIP_POINTS)); + "Unable to create '%s' fs entry\n", + ACPI_THERMAL_FILE_TRIP_POINTS)); else { entry->proc_fops = &acpi_thermal_trip_fops; entry->data = acpi_driver_data(device); @@ -1141,11 +1156,12 @@ acpi_thermal_add_fs ( /* 'cooling_mode' [R/W] */ entry = create_proc_entry(ACPI_THERMAL_FILE_COOLING_MODE, - S_IFREG|S_IRUGO|S_IWUSR, acpi_device_dir(device)); + S_IFREG | S_IRUGO | S_IWUSR, + acpi_device_dir(device)); if (!entry) ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Unable to create '%s' fs entry\n", - ACPI_THERMAL_FILE_COOLING_MODE)); + "Unable to create '%s' fs entry\n", + ACPI_THERMAL_FILE_COOLING_MODE)); else { entry->proc_fops = &acpi_thermal_cooling_fops; entry->data = acpi_driver_data(device); @@ -1154,11 +1170,12 @@ acpi_thermal_add_fs ( /* 'polling_frequency' [R/W] */ entry = create_proc_entry(ACPI_THERMAL_FILE_POLLING_FREQ, - S_IFREG|S_IRUGO|S_IWUSR, acpi_device_dir(device)); + S_IFREG | S_IRUGO | S_IWUSR, + acpi_device_dir(device)); if (!entry) ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Unable to create '%s' fs entry\n", - ACPI_THERMAL_FILE_POLLING_FREQ)); + "Unable to create '%s' fs entry\n", + ACPI_THERMAL_FILE_POLLING_FREQ)); else { entry->proc_fops = &acpi_thermal_polling_fops; entry->data = acpi_driver_data(device); @@ -1168,10 +1185,7 @@ acpi_thermal_add_fs ( return_VALUE(0); } - -static int -acpi_thermal_remove_fs ( - struct acpi_device *device) +static int acpi_thermal_remove_fs(struct acpi_device *device) { ACPI_FUNCTION_TRACE("acpi_thermal_remove_fs"); @@ -1193,19 +1207,14 @@ acpi_thermal_remove_fs ( return_VALUE(0); } - /* -------------------------------------------------------------------------- Driver Interface -------------------------------------------------------------------------- */ -static void -acpi_thermal_notify ( - acpi_handle handle, - u32 event, - void *data) +static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data) { - struct acpi_thermal *tz = (struct acpi_thermal *) data; - struct acpi_device *device = NULL; + struct acpi_thermal *tz = (struct acpi_thermal *)data; + struct acpi_device *device = NULL; ACPI_FUNCTION_TRACE("acpi_thermal_notify"); @@ -1231,19 +1240,16 @@ acpi_thermal_notify ( break; default: ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Unsupported event [0x%x]\n", event)); + "Unsupported event [0x%x]\n", event)); break; } return_VOID; } - -static int -acpi_thermal_get_info ( - struct acpi_thermal *tz) +static int acpi_thermal_get_info(struct acpi_thermal *tz) { - int result = 0; + int result = 0; ACPI_FUNCTION_TRACE("acpi_thermal_get_info"); @@ -1262,20 +1268,24 @@ acpi_thermal_get_info ( /* Set the cooling mode [_SCP] to active cooling (default) */ result = acpi_thermal_set_cooling_mode(tz, ACPI_THERMAL_MODE_ACTIVE); - if (!result) + if (!result) tz->flags.cooling_mode = 1; - else { + else { /* Oh,we have not _SCP method. - Generally show cooling_mode by _ACx, _PSV,spec 12.2*/ + Generally show cooling_mode by _ACx, _PSV,spec 12.2 */ tz->flags.cooling_mode = 0; - if ( tz->trips.active[0].flags.valid && tz->trips.passive.flags.valid ) { - if ( tz->trips.passive.temperature > tz->trips.active[0].temperature ) + if (tz->trips.active[0].flags.valid + && tz->trips.passive.flags.valid) { + if (tz->trips.passive.temperature > + tz->trips.active[0].temperature) tz->cooling_mode = ACPI_THERMAL_MODE_ACTIVE; - else + else tz->cooling_mode = ACPI_THERMAL_MODE_PASSIVE; - } else if ( !tz->trips.active[0].flags.valid && tz->trips.passive.flags.valid ) { + } else if (!tz->trips.active[0].flags.valid + && tz->trips.passive.flags.valid) { tz->cooling_mode = ACPI_THERMAL_MODE_PASSIVE; - } else if ( tz->trips.active[0].flags.valid && !tz->trips.passive.flags.valid ) { + } else if (tz->trips.active[0].flags.valid + && !tz->trips.passive.flags.valid) { tz->cooling_mode = ACPI_THERMAL_MODE_ACTIVE; } else { /* _ACx and _PSV are optional, but _CRT is required */ @@ -1297,14 +1307,11 @@ acpi_thermal_get_info ( return_VALUE(0); } - -static int -acpi_thermal_add ( - struct acpi_device *device) +static int acpi_thermal_add(struct acpi_device *device) { - int result = 0; - acpi_status status = AE_OK; - struct acpi_thermal *tz = NULL; + int result = 0; + acpi_status status = AE_OK; + struct acpi_thermal *tz = NULL; ACPI_FUNCTION_TRACE("acpi_thermal_add"); @@ -1335,19 +1342,20 @@ acpi_thermal_add ( acpi_thermal_check(tz); status = acpi_install_notify_handler(tz->handle, - ACPI_DEVICE_NOTIFY, acpi_thermal_notify, tz); + ACPI_DEVICE_NOTIFY, + acpi_thermal_notify, tz); if (ACPI_FAILURE(status)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Error installing notify handler\n")); + "Error installing notify handler\n")); result = -ENODEV; goto end; } printk(KERN_INFO PREFIX "%s [%s] (%ld C)\n", - acpi_device_name(device), acpi_device_bid(device), - KELVIN_TO_CELSIUS(tz->temperature)); + acpi_device_name(device), acpi_device_bid(device), + KELVIN_TO_CELSIUS(tz->temperature)); -end: + end: if (result) { acpi_thermal_remove_fs(device); kfree(tz); @@ -1356,21 +1364,17 @@ end: return_VALUE(result); } - -static int -acpi_thermal_remove ( - struct acpi_device *device, - int type) +static int acpi_thermal_remove(struct acpi_device *device, int type) { - acpi_status status = AE_OK; - struct acpi_thermal *tz = NULL; + acpi_status status = AE_OK; + struct acpi_thermal *tz = NULL; ACPI_FUNCTION_TRACE("acpi_thermal_remove"); if (!device || !acpi_driver_data(device)) return_VALUE(-EINVAL); - tz = (struct acpi_thermal *) acpi_driver_data(device); + tz = (struct acpi_thermal *)acpi_driver_data(device); /* avoid timer adding new defer task */ tz->zombie = 1; @@ -1382,19 +1386,19 @@ acpi_thermal_remove ( del_timer_sync(&(tz->timer)); status = acpi_remove_notify_handler(tz->handle, - ACPI_DEVICE_NOTIFY, acpi_thermal_notify); + ACPI_DEVICE_NOTIFY, + acpi_thermal_notify); if (ACPI_FAILURE(status)) ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Error removing notify handler\n")); + "Error removing notify handler\n")); /* Terminate policy */ - if (tz->trips.passive.flags.valid - && tz->trips.passive.flags.enabled) { + if (tz->trips.passive.flags.valid && tz->trips.passive.flags.enabled) { tz->trips.passive.flags.enabled = 0; acpi_thermal_passive(tz); } if (tz->trips.active[0].flags.valid - && tz->trips.active[0].flags.enabled) { + && tz->trips.active[0].flags.enabled) { tz->trips.active[0].flags.enabled = 0; acpi_thermal_active(tz); } @@ -1405,11 +1409,9 @@ acpi_thermal_remove ( return_VALUE(0); } - -static int __init -acpi_thermal_init (void) +static int __init acpi_thermal_init(void) { - int result = 0; + int result = 0; ACPI_FUNCTION_TRACE("acpi_thermal_init"); @@ -1427,9 +1429,7 @@ acpi_thermal_init (void) return_VALUE(0); } - -static void __exit -acpi_thermal_exit (void) +static void __exit acpi_thermal_exit(void) { ACPI_FUNCTION_TRACE("acpi_thermal_exit"); @@ -1440,6 +1440,5 @@ acpi_thermal_exit (void) return_VOID; } - module_init(acpi_thermal_init); module_exit(acpi_thermal_exit); |