#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
#define ACPI_SBS_CLASS "sbs"
#define ACPI_AC_CLASS "ac_adapter"
#define ACPI_BATTERY_CLASS "battery"
-#define ACPI_SBS_HID "ACPI0002"
#define ACPI_SBS_DEVICE_NAME "Smart Battery System"
#define ACPI_SBS_FILE_INFO "info"
#define ACPI_SBS_FILE_STATE "state"
#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 const struct acpi_device_id sbs_device_ids[] = {
+ {"ACPI0001", 0},
+ {"ACPI0005", 0},
+ {"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
static struct acpi_driver acpi_sbs_driver = {
.name = "sbs",
.class = ACPI_SBS_CLASS,
- .ids = ACPI_SBS_HID,
+ .ids = sbs_device_ids,
.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;
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 {
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;
};
struct acpi_sbs {
- acpi_handle handle;
int base;
struct acpi_device *device;
+ 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];
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
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)
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;
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
"acpi_sbs_read_word() failed"));
goto end;
}
-
+ sbs->sbsm_present = 1;
sbs->sbsm_batteries_supported = battery_system_info & 0x000f;
end:
&battery->info.design_capacity);
if (result) {
+ ACPI_EXCEPTION((AE_INFO, AE_ERROR,
+ "acpi_sbs_read_word() failed"));
goto end;
}
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;
}
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) {
goto end;
}
- acpi_update_delay(battery->sbs);
result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x0a,
&battery->state.amperage);
if (result) {
goto end;
}
- acpi_update_delay(battery->sbs);
result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x0f,
&battery->state.remaining_capacity);
if (result) {
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;
}
goto end;
}
- acpi_update_delay(battery->sbs);
-
end:
return result;
static int acpi_battery_set_mode(struct acpi_battery *battery)
{
+ struct acpi_sbs *sbs = battery->sbs;
int result = 0;
s16 battery_mode;
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,
} 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,
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,
result = acpi_battery_select(battery);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_init() failed"));
+ "acpi_battery_select() failed"));
goto end;
}
goto end;
}
- sbs->ac_present = (charger_status & 0x8000) >> 15;
+ sbs->ac.ac_present = (charger_status & 0x8000) >> 15;
end:
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");
} 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");
end:
- up(&sbs_sem);
+ sbs_mutex_unlock(sbs);
return result;
}
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");
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");
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;
}
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;
}
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;
}
{
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;
}
}
end:
- up(&sbs_sem);
+ sbs_mutex_unlock(sbs);
if (result) {
return result;
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"));
}
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;
}
goto end;
}
- is_present = acpi_battery_is_present(battery);
+ is_present = battery->battery_present;
if (is_present) {
result = acpi_battery_init(battery);
}
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;
}
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;
}
}
-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) {
"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 (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) {
+ 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;
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,
"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,
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;
- unsigned long sbs_obj;
+ int result = 0, remove_result = 0;
int id;
acpi_status status = AE_OK;
unsigned long val;
status =
- acpi_evaluate_integer(device->parent->handle, "_EC", NULL, &val);
+ acpi_evaluate_integer(device->handle, "_EC", NULL, &val);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR, "Error obtaining _EC"));
return -EIO;
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 = 0xff & (val >> 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,
- "acpi_evaluate_integer() failed"));
- result = -EIO;
- goto end;
- }
- if (sbs_obj > 0) {
- result = acpi_sbsm_get_info(sbs);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbsm_get_info() failed"));
- goto end;
- }
- sbs->sbsm_present = 1;
- }
- if (sbs->sbsm_present == 0) {
+ acpi_sbsm_get_info(sbs);
+
+ if (!sbs->sbsm_present) {
result = acpi_battery_add(sbs, 0);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
result = acpi_battery_add(sbs, id);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_add() "
- "failed"));
+ "acpi_battery_add() failed"));
goto end;
}
}
}
}
- 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;
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);
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;
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;
}
if (!acpi_battery_dir) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_lock_battery_dir() failed"));
+ acpi_sbs_rmdirs();
return -ENODEV;
}
if (result < 0) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_bus_register_driver() failed"));
+ acpi_sbs_rmdirs();
return -ENODEV;
}
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;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff