diff options
Diffstat (limited to 'drivers/acpi/sbs.c')
| -rw-r--r-- | drivers/acpi/sbs.c | 577 |
1 files changed, 319 insertions, 258 deletions
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index 395664528dd1..c1bae106833c 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -31,6 +31,7 @@ #include <asm/uaccess.h> #include <linux/acpi.h> #include <linux/timer.h> +#include <linux/jiffies.h> #include <linux/delay.h> #define ACPI_SBS_COMPONENT 0x00080000 @@ -109,29 +110,19 @@ extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir); #define ACPI_SBS_WORD_DATA 1 #define ACPI_SBS_BLOCK_DATA 2 -static struct semaphore sbs_sem; +#define UPDATE_DELAY 10 -#define UPDATE_MODE QUEUE_UPDATE_MODE -/* REQUEST_UPDATE_MODE QUEUE_UPDATE_MODE */ -#define UPDATE_INFO_MODE 0 -#define UPDATE_TIME 60 -#define UPDATE_TIME2 0 +/* 0 - every time, > 0 - by update_time */ +static unsigned int update_time = 120; -static int capacity_mode = CAPACITY_UNIT; -static int update_mode = UPDATE_MODE; -static int update_info_mode = UPDATE_INFO_MODE; -static int update_time = UPDATE_TIME; -static int update_time2 = UPDATE_TIME2; +static unsigned int capacity_mode = CAPACITY_UNIT; -module_param(capacity_mode, int, 0); -module_param(update_mode, int, 0); -module_param(update_info_mode, int, 0); -module_param(update_time, int, 0); -module_param(update_time2, int, 0); +module_param(update_time, uint, 0644); +module_param(capacity_mode, uint, 0444); static int acpi_sbs_add(struct acpi_device *device); static int acpi_sbs_remove(struct acpi_device *device, int type); -static void acpi_sbs_update_queue(void *data); +static int acpi_sbs_resume(struct acpi_device *device); static struct acpi_driver acpi_sbs_driver = { .name = "sbs", @@ -140,9 +131,14 @@ static struct acpi_driver acpi_sbs_driver = { .ops = { .add = acpi_sbs_add, .remove = acpi_sbs_remove, + .resume = acpi_sbs_resume, }, }; +struct acpi_ac { + int ac_present; +}; + struct acpi_battery_info { int capacity_mode; s16 full_charge_capacity; @@ -160,9 +156,7 @@ struct acpi_battery_state { s16 voltage; s16 amperage; s16 remaining_capacity; - s16 average_time_to_empty; - s16 average_time_to_full; - s16 battery_status; + s16 battery_state; }; struct acpi_battery_alarm { @@ -171,9 +165,9 @@ struct acpi_battery_alarm { struct acpi_battery { int alive; - int battery_present; int id; int init_state; + int battery_present; struct acpi_sbs *sbs; struct acpi_battery_info info; struct acpi_battery_state state; @@ -185,18 +179,22 @@ struct acpi_sbs { acpi_handle handle; int base; struct acpi_device *device; + struct acpi_ec_smbus *smbus; + struct mutex mutex; int sbsm_present; int sbsm_batteries_supported; - int ac_present; struct proc_dir_entry *ac_entry; + struct acpi_ac ac; struct acpi_battery battery[MAX_SBS_BAT]; - int update_info_mode; int zombie; - int update_time; - int update_time2; struct timer_list update_timer; + int run_cnt; + int update_proc_flg; }; +static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type); +static void acpi_sbs_update_time(void *data); + union sbs_rw_data { u16 word; u8 block[ACPI_SBS_BLOCK_MAX + 2]; @@ -205,8 +203,6 @@ union sbs_rw_data { static int acpi_ec_sbs_access(struct acpi_sbs *sbs, u16 addr, char read_write, u8 command, int size, union sbs_rw_data *data); -static void acpi_update_delay(struct acpi_sbs *sbs); -static int acpi_sbs_update_run(struct acpi_sbs *sbs, int data_type); /* -------------------------------------------------------------------------- SMBus Communication @@ -383,11 +379,49 @@ acpi_sbs_write_word(struct acpi_sbs *sbs, int addr, int func, int word) return result; } +static int sbs_zombie(struct acpi_sbs *sbs) +{ + return (sbs->zombie); +} + +static int sbs_mutex_lock(struct acpi_sbs *sbs) +{ + if (sbs_zombie(sbs)) { + return -ENODEV; + } + mutex_lock(&sbs->mutex); + return 0; +} + +static void sbs_mutex_unlock(struct acpi_sbs *sbs) +{ + mutex_unlock(&sbs->mutex); +} + /* -------------------------------------------------------------------------- Smart Battery System Management -------------------------------------------------------------------------- */ -/* Smart Battery */ +static int acpi_check_update_proc(struct acpi_sbs *sbs) +{ + acpi_status status = AE_OK; + + if (update_time == 0) { + sbs->update_proc_flg = 0; + return 0; + } + if (sbs->update_proc_flg == 0) { + status = acpi_os_execute(OSL_GPE_HANDLER, + acpi_sbs_update_time, sbs); + if (status != AE_OK) { + ACPI_EXCEPTION((AE_INFO, status, + "acpi_os_execute() failed")); + return 1; + } + sbs->update_proc_flg = 1; + } + return 0; +} static int acpi_sbs_generate_event(struct acpi_device *device, int event, int state, char *bid, char *class) @@ -430,16 +464,6 @@ static int acpi_battery_get_present(struct acpi_battery *battery) return result; } -static int acpi_battery_is_present(struct acpi_battery *battery) -{ - return (battery->battery_present); -} - -static int acpi_ac_is_present(struct acpi_sbs *sbs) -{ - return (sbs->ac_present); -} - static int acpi_battery_select(struct acpi_battery *battery) { struct acpi_sbs *sbs = battery->sbs; @@ -447,7 +471,7 @@ static int acpi_battery_select(struct acpi_battery *battery) s16 state; int foo; - if (battery->sbs->sbsm_present) { + if (sbs->sbsm_present) { /* Take special care not to knobble other nibbles of * state (aka selector_state), since @@ -523,6 +547,8 @@ static int acpi_battery_get_info(struct acpi_battery *battery) &battery->info.design_capacity); if (result) { + ACPI_EXCEPTION((AE_INFO, AE_ERROR, + "acpi_sbs_read_word() failed")); goto end; } @@ -573,6 +599,8 @@ static int acpi_battery_get_info(struct acpi_battery *battery) result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x1c, &battery->info.serial_number); if (result) { + ACPI_EXCEPTION((AE_INFO, AE_ERROR, + "acpi_sbs_read_word() failed")); goto end; } @@ -604,22 +632,11 @@ static int acpi_battery_get_info(struct acpi_battery *battery) return result; } -static void acpi_update_delay(struct acpi_sbs *sbs) -{ - if (sbs->zombie) { - return; - } - if (sbs->update_time2 > 0) { - msleep(sbs->update_time2 * 1000); - } -} - static int acpi_battery_get_state(struct acpi_battery *battery) { struct acpi_sbs *sbs = battery->sbs; int result = 0; - acpi_update_delay(battery->sbs); result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x09, &battery->state.voltage); if (result) { @@ -628,7 +645,6 @@ static int acpi_battery_get_state(struct acpi_battery *battery) goto end; } - acpi_update_delay(battery->sbs); result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x0a, &battery->state.amperage); if (result) { @@ -637,7 +653,6 @@ static int acpi_battery_get_state(struct acpi_battery *battery) goto end; } - acpi_update_delay(battery->sbs); result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x0f, &battery->state.remaining_capacity); if (result) { @@ -646,35 +661,14 @@ static int acpi_battery_get_state(struct acpi_battery *battery) goto end; } - acpi_update_delay(battery->sbs); - result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x12, - &battery->state.average_time_to_empty); - if (result) { - ACPI_EXCEPTION((AE_INFO, AE_ERROR, - "acpi_sbs_read_word() failed")); - goto end; - } - - acpi_update_delay(battery->sbs); - result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x13, - &battery->state.average_time_to_full); - if (result) { - ACPI_EXCEPTION((AE_INFO, AE_ERROR, - "acpi_sbs_read_word() failed")); - goto end; - } - - acpi_update_delay(battery->sbs); result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x16, - &battery->state.battery_status); + &battery->state.battery_state); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_sbs_read_word() failed")); goto end; } - acpi_update_delay(battery->sbs); - end: return result; } @@ -692,8 +686,6 @@ static int acpi_battery_get_alarm(struct acpi_battery *battery) goto end; } - acpi_update_delay(battery->sbs); - end: return result; @@ -751,6 +743,7 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery, static int acpi_battery_set_mode(struct acpi_battery *battery) { + struct acpi_sbs *sbs = battery->sbs; int result = 0; s16 battery_mode; @@ -758,7 +751,7 @@ static int acpi_battery_set_mode(struct acpi_battery *battery) goto end; } - result = acpi_sbs_read_word(battery->sbs, + result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x03, &battery_mode); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, @@ -771,7 +764,7 @@ static int acpi_battery_set_mode(struct acpi_battery *battery) } else { battery_mode |= 0x8000; } - result = acpi_sbs_write_word(battery->sbs, + result = acpi_sbs_write_word(sbs, ACPI_SB_SMBUS_ADDR, 0x03, battery_mode); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, @@ -779,7 +772,7 @@ static int acpi_battery_set_mode(struct acpi_battery *battery) goto end; } - result = acpi_sbs_read_word(battery->sbs, + result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x03, &battery_mode); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, @@ -798,7 +791,7 @@ static int acpi_battery_init(struct acpi_battery *battery) result = acpi_battery_select(battery); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, - "acpi_battery_init() failed")); + "acpi_battery_select() failed")); goto end; } @@ -848,7 +841,7 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs) goto end; } - sbs->ac_present = (charger_status & 0x8000) >> 15; + sbs->ac.ac_present = (charger_status & 0x8000) >> 15; end: @@ -945,24 +938,27 @@ static struct proc_dir_entry *acpi_battery_dir = NULL; static int acpi_battery_read_info(struct seq_file *seq, void *offset) { struct acpi_battery *battery = seq->private; + struct acpi_sbs *sbs = battery->sbs; int cscale; int result = 0; - if (battery->sbs->zombie) { + if (sbs_mutex_lock(sbs)) { return -ENODEV; } - down(&sbs_sem); + result = acpi_check_update_proc(sbs); + if (result) + goto end; - if (update_mode == REQUEST_UPDATE_MODE) { - result = acpi_sbs_update_run(battery->sbs, DATA_TYPE_INFO); + if (update_time == 0) { + result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_INFO); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_sbs_update_run() failed")); } } - if (acpi_battery_is_present(battery)) { + if (battery->battery_present) { seq_printf(seq, "present: yes\n"); } else { seq_printf(seq, "present: no\n"); @@ -974,13 +970,13 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset) } else { cscale = battery->info.ipscale; } - seq_printf(seq, "design capacity: %i%s", + seq_printf(seq, "design capacity: %i%s\n", battery->info.design_capacity * cscale, - battery->info.capacity_mode ? "0 mWh\n" : " mAh\n"); + battery->info.capacity_mode ? "0 mWh" : " mAh"); - seq_printf(seq, "last full capacity: %i%s", + seq_printf(seq, "last full capacity: %i%s\n", battery->info.full_charge_capacity * cscale, - battery->info.capacity_mode ? "0 mWh\n" : " mAh\n"); + battery->info.capacity_mode ? "0 mWh" : " mAh"); seq_printf(seq, "battery technology: rechargeable\n"); @@ -1006,7 +1002,7 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset) end: - up(&sbs_sem); + sbs_mutex_unlock(sbs); return result; } @@ -1018,26 +1014,29 @@ static int acpi_battery_info_open_fs(struct inode *inode, struct file *file) static int acpi_battery_read_state(struct seq_file *seq, void *offset) { - struct acpi_battery *battery = (struct acpi_battery *)seq->private; + struct acpi_battery *battery = seq->private; + struct acpi_sbs *sbs = battery->sbs; int result = 0; int cscale; int foo; - if (battery->sbs->zombie) { + if (sbs_mutex_lock(sbs)) { return -ENODEV; } - down(&sbs_sem); + result = acpi_check_update_proc(sbs); + if (result) + goto end; - if (update_mode == REQUEST_UPDATE_MODE) { - result = acpi_sbs_update_run(battery->sbs, DATA_TYPE_STATE); + if (update_time == 0) { + result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_STATE); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_sbs_update_run() failed")); } } - if (acpi_battery_is_present(battery)) { + if (battery->battery_present) { seq_printf(seq, "present: yes\n"); } else { seq_printf(seq, "present: no\n"); @@ -1050,7 +1049,7 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset) cscale = battery->info.ipscale; } - if (battery->state.battery_status & 0x0010) { + if (battery->state.battery_state & 0x0010) { seq_printf(seq, "capacity state: critical\n"); } else { seq_printf(seq, "capacity state: ok\n"); @@ -1074,16 +1073,16 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset) battery->info.capacity_mode ? "mW" : "mA"); } - seq_printf(seq, "remaining capacity: %i%s", + seq_printf(seq, "remaining capacity: %i%s\n", battery->state.remaining_capacity * cscale, - battery->info.capacity_mode ? "0 mWh\n" : " mAh\n"); + battery->info.capacity_mode ? "0 mWh" : " mAh"); seq_printf(seq, "present voltage: %i mV\n", battery->state.voltage * battery->info.vscale); end: - up(&sbs_sem); + sbs_mutex_unlock(sbs); return result; } @@ -1096,24 +1095,27 @@ static int acpi_battery_state_open_fs(struct inode *inode, struct file *file) static int acpi_battery_read_alarm(struct seq_file *seq, void *offset) { struct acpi_battery *battery = seq->private; + struct acpi_sbs *sbs = battery->sbs; int result = 0; int cscale; - if (battery->sbs->zombie) { + if (sbs_mutex_lock(sbs)) { return -ENODEV; } - down(&sbs_sem); + result = acpi_check_update_proc(sbs); + if (result) + goto end; - if (update_mode == REQUEST_UPDATE_MODE) { - result = acpi_sbs_update_run(battery->sbs, DATA_TYPE_ALARM); + if (update_time == 0) { + result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_ALARM); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_sbs_update_run() failed")); } } - if (!acpi_battery_is_present(battery)) { + if (!battery->battery_present) { seq_printf(seq, "present: no\n"); goto end; } @@ -1126,16 +1128,16 @@ static int acpi_battery_read_alarm(struct seq_file *seq, void *offset) seq_printf(seq, "alarm: "); if (battery->alarm.remaining_capacity) { - seq_printf(seq, "%i%s", + seq_printf(seq, "%i%s\n", battery->alarm.remaining_capacity * cscale, - battery->info.capacity_mode ? "0 mWh\n" : " mAh\n"); + battery->info.capacity_mode ? "0 mWh" : " mAh"); } else { seq_printf(seq, "disabled\n"); } end: - up(&sbs_sem); + sbs_mutex_unlock(sbs); return result; } @@ -1146,16 +1148,19 @@ acpi_battery_write_alarm(struct file *file, const char __user * buffer, { struct seq_file *seq = file->private_data; struct acpi_battery *battery = seq->private; + struct acpi_sbs *sbs = battery->sbs; char alarm_string[12] = { '\0' }; int result, old_alarm, new_alarm; - if (battery->sbs->zombie) { + if (sbs_mutex_lock(sbs)) { return -ENODEV; } - down(&sbs_sem); + result = acpi_check_update_proc(sbs); + if (result) + goto end; - if (!acpi_battery_is_present(battery)) { + if (!battery->battery_present) { result = -ENODEV; goto end; } @@ -1191,7 +1196,7 @@ acpi_battery_write_alarm(struct file *file, const char __user * buffer, } end: - up(&sbs_sem); + sbs_mutex_unlock(sbs); if (result) { return result; @@ -1239,14 +1244,12 @@ static int acpi_ac_read_state(struct seq_file *seq, void *offset) struct acpi_sbs *sbs = seq->private; int result; - if (sbs->zombie) { + if (sbs_mutex_lock(sbs)) { return -ENODEV; } - down(&sbs_sem); - - if (update_mode == REQUEST_UPDATE_MODE) { - result = acpi_sbs_update_run(sbs, DATA_TYPE_AC_STATE); + if (update_time == 0) { + result = acpi_sbs_update_run(sbs, -1, DATA_TYPE_AC_STATE); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_sbs_update_run() failed")); @@ -1254,9 +1257,9 @@ static int acpi_ac_read_state(struct seq_file *seq, void *offset) } seq_printf(seq, "state: %s\n", - sbs->ac_present ? "on-line" : "off-line"); + sbs->ac.ac_present ? "on-line" : "off-line"); - up(&sbs_sem); + sbs_mutex_unlock(sbs); return 0; } @@ -1309,7 +1312,7 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id) goto end; } - is_present = acpi_battery_is_present(battery); + is_present = battery->battery_present; if (is_present) { result = acpi_battery_init(battery); @@ -1336,6 +1339,10 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id) } battery->alive = 1; + printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n", + ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), dir_name, + sbs->battery->battery_present ? "present" : "absent"); + end: return result; } @@ -1370,6 +1377,10 @@ static int acpi_ac_add(struct acpi_sbs *sbs) goto end; } + printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n", + ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), + ACPI_AC_DIR_NAME, sbs->ac.ac_present ? "on-line" : "off-line"); + end: return result; @@ -1383,29 +1394,48 @@ static void acpi_ac_remove(struct acpi_sbs *sbs) } } -static void acpi_sbs_update_queue_run(unsigned long data) +static void acpi_sbs_update_time_run(unsigned long data) { - acpi_os_execute(OSL_GPE_HANDLER, acpi_sbs_update_queue, (void *)data); + acpi_os_execute(OSL_GPE_HANDLER, acpi_sbs_update_time, (void *)data); } -static int acpi_sbs_update_run(struct acpi_sbs *sbs, int data_type) +static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type) { struct acpi_battery *battery; - int result = 0; - int old_ac_present; - int old_battery_present; - int new_ac_present; - int new_battery_present; - int id; + int result = 0, cnt; + int old_ac_present = -1; + int old_battery_present = -1; + int new_ac_present = -1; + int new_battery_present = -1; + int id_min = 0, id_max = MAX_SBS_BAT - 1; char dir_name[32]; - int do_battery_init, do_ac_init; - s16 old_remaining_capacity; + int do_battery_init = 0, do_ac_init = 0; + int old_remaining_capacity = 0; + int update_ac = 1, update_battery = 1; + int up_tm = update_time; + + if (sbs_zombie(sbs)) { + goto end; + } - if (sbs->zombie) { + if (id >= 0) { + id_min = id_max = id; + } + + if (data_type == DATA_TYPE_COMMON && up_tm > 0) { + cnt = up_tm / (up_tm > UPDATE_DELAY ? UPDATE_DELAY : up_tm); + if (sbs->run_cnt % cnt != 0) { + update_battery = 0; + } + } + + sbs->run_cnt++; + + if (!update_ac && !update_battery) { goto end; } - old_ac_present = acpi_ac_is_present(sbs); + old_ac_present = sbs->ac.ac_present; result = acpi_ac_get_present(sbs); if (result) { @@ -1413,15 +1443,36 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int data_type) "acpi_ac_get_present() failed")); } - new_ac_present = acpi_ac_is_present(sbs); + new_ac_present = sbs->ac.ac_present; do_ac_init = (old_ac_present != new_ac_present); + if (sbs->run_cnt == 1 && data_type == DATA_TYPE_COMMON) { + do_ac_init = 1; + } - if (data_type == DATA_TYPE_AC_STATE) { + if (do_ac_init) { + result = acpi_sbs_generate_event(sbs->device, + ACPI_SBS_AC_NOTIFY_STATUS, + new_ac_present, + ACPI_AC_DIR_NAME, + ACPI_AC_CLASS); + if (result) { + ACPI_EXCEPTION((AE_INFO, AE_ERROR, + "acpi_sbs_generate_event() failed")); + } + } + + if (data_type == DATA_TYPE_COMMON) { + if (!do_ac_init && !update_battery) { + goto end; + } + } + + if (data_type == DATA_TYPE_AC_STATE && !do_ac_init) { goto end; } - for (id = 0; id < MAX_SBS_BAT; id++) { + for (id = id_min; id <= id_max; id++) { battery = &sbs->battery[id]; if (battery->alive == 0) { continue; @@ -1429,41 +1480,27 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int data_type) old_remaining_capacity = battery->state.remaining_capacity; - old_battery_present = acpi_battery_is_present(battery); + old_battery_present = battery->battery_present; result = acpi_battery_select(battery); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_battery_select() failed")); } - if (sbs->zombie) { - goto end; - } result = acpi_battery_get_present(battery); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_battery_get_present() failed")); } - if (sbs->zombie) { - goto end; - } - new_battery_present = acpi_battery_is_present(battery); + new_battery_present = battery->battery_present; do_battery_init = ((old_battery_present != new_battery_present) && new_battery_present); - - if (sbs->zombie) { - goto end; - } - if (do_ac_init || do_battery_init || - update_info_mode || sbs->update_info_mode) { - if (sbs->update_info_mode) { - sbs->update_info_mode = 0; - } else { - sbs->update_info_mode = 1; - } + if (!new_battery_present) + goto event; + if (do_ac_init || do_battery_init) { result = acpi_battery_init(battery); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, @@ -1471,52 +1508,64 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int data_type) "failed")); } } - if (data_type == DATA_TYPE_INFO) { - continue; - } - - if (sbs->zombie) { + if (sbs_zombie(sbs)) { goto end; } - if (new_battery_present) { - result = acpi_battery_get_alarm(battery); + + if ((data_type == DATA_TYPE_COMMON + || data_type == DATA_TYPE_INFO) + && new_battery_present) { + result = acpi_battery_get_info(battery); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, - "acpi_battery_get_alarm() " - "failed")); - } - if (data_type == DATA_TYPE_ALARM) { - continue; + "acpi_battery_get_info() failed")); } + } + if (data_type == DATA_TYPE_INFO) { + continue; + } + if (sbs_zombie(sbs)) { + goto end; + } + if ((data_type == DATA_TYPE_COMMON + || data_type == DATA_TYPE_STATE) + && new_battery_present) { result = acpi_battery_get_state(battery); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, - "acpi_battery_get_state() " - "failed")); + "acpi_battery_get_state() failed")); } } - if (sbs->zombie) { - goto end; + if (data_type == DATA_TYPE_STATE) { + goto event; } - if (data_type != DATA_TYPE_COMMON) { - continue; + if (sbs_zombie(sbs)) { + goto end; } - if (old_battery_present != new_battery_present) { - sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id); - result = acpi_sbs_generate_event(sbs->device, - ACPI_SBS_BATTERY_NOTIFY_STATUS, - new_battery_present, - dir_name, - ACPI_BATTERY_CLASS); + if ((data_type == DATA_TYPE_COMMON + || data_type == DATA_TYPE_ALARM) + && new_battery_present) { + result = acpi_battery_get_alarm(battery); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, - "acpi_sbs_generate_event() " + "acpi_battery_get_alarm() " "failed")); } } - if (old_remaining_capacity != battery->state.remaining_capacity) { + if (data_type == DATA_TYPE_ALARM) { + continue; + } + if (sbs_zombie(sbs)) { + goto end; + } + + event: + + if (old_battery_present != new_battery_present || do_ac_init || + old_remaining_capacity != + battery->state.remaining_capacity) { sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id); result = acpi_sbs_generate_event(sbs->device, ACPI_SBS_BATTERY_NOTIFY_STATUS, @@ -1525,71 +1574,62 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int data_type) ACPI_BATTERY_CLASS); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, - "acpi_sbs_generate_event() failed")); + "acpi_sbs_generate_event() " + "failed")); } } - - } - if (sbs->zombie) { - goto end; - } - if (data_type != DATA_TYPE_COMMON) { - goto end; - } - - if (old_ac_present != new_ac_present) { - result = acpi_sbs_generate_event(sbs->device, - ACPI_SBS_AC_NOTIFY_STATUS, - new_ac_present, - ACPI_AC_DIR_NAME, - ACPI_AC_CLASS); - if (result) { - ACPI_EXCEPTION((AE_INFO, AE_ERROR, - "acpi_sbs_generate_event() failed")); - } } end: + return result; } -static void acpi_sbs_update_queue(void *data) +static void acpi_sbs_update_time(void *data) { struct acpi_sbs *sbs = data; unsigned long delay = -1; int result; + unsigned int up_tm = update_time; - if (sbs->zombie) { - goto end; - } + if (sbs_mutex_lock(sbs)) + return; - result = acpi_sbs_update_run(sbs, DATA_TYPE_COMMON); + result = acpi_sbs_update_run(sbs, -1, DATA_TYPE_COMMON); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_sbs_update_run() failed")); } - if (sbs->zombie) { + if (sbs_zombie(sbs)) { goto end; } - if (update_mode == REQUEST_UPDATE_MODE) { - goto end; + if (!up_tm) { + if (timer_pending(&sbs->update_timer)) + del_timer(&sbs->update_timer); + } else { + delay = (up_tm > UPDATE_DELAY ? UPDATE_DELAY : up_tm); + delay = jiffies + HZ * delay; + if (timer_pending(&sbs->update_timer)) { + mod_timer(&sbs->update_timer, delay); + } else { + sbs->update_timer.data = (unsigned long)data; + sbs->update_timer.function = acpi_sbs_update_time_run; + sbs->update_timer.expires = delay; + add_timer(&sbs->update_timer); + } } - delay = jiffies + HZ * update_time; - sbs->update_timer.data = (unsigned long)data; - sbs->update_timer.function = acpi_sbs_update_queue_run; - sbs->update_timer.expires = delay; - add_timer(&sbs->update_timer); end: - ; + + sbs_mutex_unlock(sbs); } static int acpi_sbs_add(struct acpi_device *device) { struct acpi_sbs *sbs = NULL; - int result; + int result = 0, remove_result = 0; unsigned long sbs_obj; int id; acpi_status status = AE_OK; @@ -1604,33 +1644,34 @@ static int acpi_sbs_add(struct acpi_device *device) sbs = kzalloc(sizeof(struct acpi_sbs), GFP_KERNEL); if (!sbs) { - ACPI_EXCEPTION((AE_INFO, AE_ERROR, "kmalloc() failed")); - return -ENOMEM; + ACPI_EXCEPTION((AE_INFO, AE_ERROR, "kzalloc() failed")); + result = -ENOMEM; + goto end; } - sbs->base = (val & 0xff00ull) >> 8; + mutex_init(&sbs->mutex); + + sbs_mutex_lock(sbs); + + sbs->base = (val & 0xff00ull) >> 8; sbs->device = device; strcpy(acpi_device_name(device), ACPI_SBS_DEVICE_NAME); strcpy(acpi_device_class(device), ACPI_SBS_CLASS); acpi_driver_data(device) = sbs; - sbs->update_time = 0; - sbs->update_time2 = 0; - result = acpi_ac_add(sbs); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_ac_add() failed")); goto end; } - result = acpi_evaluate_integer(device->handle, "_SBS", NULL, &sbs_obj); - if (ACPI_FAILURE(result)) { - ACPI_EXCEPTION((AE_INFO, AE_ERROR, + status = acpi_evaluate_integer(device->handle, "_SBS", NULL, &sbs_obj); + if (status) { + ACPI_EXCEPTION((AE_INFO, status, "acpi_evaluate_integer() failed")); result = -EIO; goto end; } - if (sbs_obj > 0) { result = acpi_sbsm_get_info(sbs); if (result) { @@ -1640,6 +1681,7 @@ static int acpi_sbs_add(struct acpi_device *device) } sbs->sbsm_present = 1; } + if (sbs->sbsm_present == 0) { result = acpi_battery_add(sbs, 0); if (result) { @@ -1653,8 +1695,7 @@ static int acpi_sbs_add(struct acpi_device *device) result = acpi_battery_add(sbs, id); if (result) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, - "acpi_battery_add() " - "failed")); + "acpi_battery_add() failed")); goto end; } } @@ -1664,29 +1705,26 @@ static int acpi_sbs_add(struct acpi_device *device) sbs->handle = device->handle; init_timer(&sbs->update_timer); - if (update_mode == QUEUE_UPDATE_MODE) { - status = acpi_os_execute(OSL_GPE_HANDLER, - acpi_sbs_update_queue, sbs); - if (status != AE_OK) { - ACPI_EXCEPTION((AE_INFO, AE_ERROR, - "acpi_os_execute() failed")); - } - } - sbs->update_time = update_time; - sbs->update_time2 = update_time2; - - printk(KERN_INFO PREFIX "%s [%s]\n", - acpi_device_name(device), acpi_device_bid(device)); + result = acpi_check_update_proc(sbs); + if (result) + goto end; end: + + sbs_mutex_unlock(sbs); + if (result) { - acpi_sbs_remove(device, 0); + remove_result = acpi_sbs_remove(device, 0); + if (remove_result) { + ACPI_EXCEPTION((AE_INFO, AE_ERROR, + "acpi_sbs_remove() failed")); + } } return result; } -int acpi_sbs_remove(struct acpi_device *device, int type) +static int acpi_sbs_remove(struct acpi_device *device, int type) { struct acpi_sbs *sbs; int id; @@ -1695,15 +1733,14 @@ int acpi_sbs_remove(struct acpi_device *device, int type) return -EINVAL; } - sbs = (struct acpi_sbs *)acpi_driver_data(device); - + sbs = acpi_driver_data(device); if (!sbs) { return -EINVAL; } + sbs_mutex_lock(sbs); + sbs->zombie = 1; - sbs->update_time = 0; - sbs->update_time2 = 0; del_timer_sync(&sbs->update_timer); acpi_os_wait_events_complete(NULL); del_timer_sync(&sbs->update_timer); @@ -1714,13 +1751,41 @@ int acpi_sbs_remove(struct acpi_device *device, int type) acpi_ac_remove(sbs); - acpi_driver_data(device) = NULL; + sbs_mutex_unlock(sbs); + + mutex_destroy(&sbs->mutex); kfree(sbs); return 0; } +static void acpi_sbs_rmdirs(void) +{ + if (acpi_ac_dir) { + acpi_unlock_ac_dir(acpi_ac_dir); + acpi_ac_dir = NULL; + } + if (acpi_battery_dir) { + acpi_unlock_battery_dir(acpi_battery_dir); + acpi_battery_dir = NULL; + } +} + +static int acpi_sbs_resume(struct acpi_device *device) +{ + struct acpi_sbs *sbs; + + if (!device) + return -EINVAL; + + sbs = device->driver_data; + + sbs->run_cnt = 0; + + return 0; +} + static int __init acpi_sbs_init(void) { int result = 0; @@ -1728,12 +1793,10 @@ static int __init acpi_sbs_init(void) if (acpi_disabled) return -ENODEV; - init_MUTEX(&sbs_sem); - if (capacity_mode != DEF_CAPACITY_UNIT && capacity_mode != MAH_CAPACITY_UNIT && capacity_mode != MWH_CAPACITY_UNIT) { - ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_sbs_init: " + ACPI_EXCEPTION((AE_INFO, AE_ERROR, "invalid capacity_mode = %d", capacity_mode)); return -EINVAL; } @@ -1749,6 +1812,7 @@ static int __init acpi_sbs_init(void) if (!acpi_battery_dir) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_lock_battery_dir() failed")); + acpi_sbs_rmdirs(); return -ENODEV; } @@ -1756,6 +1820,7 @@ static int __init acpi_sbs_init(void) if (result < 0) { ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_bus_register_driver() failed")); + acpi_sbs_rmdirs(); return -ENODEV; } @@ -1764,13 +1829,9 @@ static int __init acpi_sbs_init(void) static void __exit acpi_sbs_exit(void) { - acpi_bus_unregister_driver(&acpi_sbs_driver); - acpi_unlock_ac_dir(acpi_ac_dir); - acpi_ac_dir = NULL; - acpi_unlock_battery_dir(acpi_battery_dir); - acpi_battery_dir = NULL; + acpi_sbs_rmdirs(); return; } |