diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/acpi/ac.c | 25 | ||||
| -rw-r--r-- | drivers/acpi/battery.c | 7 | ||||
| -rw-r--r-- | drivers/acpi/battery.h | 10 | ||||
| -rw-r--r-- | drivers/acpi/sbs.c | 2 |
5 files changed, 40 insertions, 6 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index f60f11d7e489..c205653e9644 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -102,7 +102,7 @@ config ACPI_BUTTON config ACPI_VIDEO tristate "Video" - depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL + depends on X86 && BACKLIGHT_CLASS_DEVICE depends on INPUT select THERMAL help diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 6f190bc2b8b7..2c01c1da29ce 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -33,6 +33,7 @@ #include <linux/platform_device.h> #include <linux/power_supply.h> #include <linux/acpi.h> +#include "battery.h" #define PREFIX "ACPI: " @@ -57,6 +58,7 @@ struct acpi_ac { struct power_supply charger; struct platform_device *pdev; unsigned long long state; + struct notifier_block battery_nb; }; #define to_acpi_ac(x) container_of(x, struct acpi_ac, charger) @@ -152,6 +154,26 @@ static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data) return; } +static int acpi_ac_battery_notify(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct acpi_ac *ac = container_of(nb, struct acpi_ac, battery_nb); + struct acpi_bus_event *event = (struct acpi_bus_event *)data; + + /* + * On HP Pavilion dv6-6179er AC status notifications aren't triggered + * when adapter is plugged/unplugged. However, battery status + * notifcations are triggered when battery starts charging or + * discharging. Re-reading AC status triggers lost AC notifications, + * if AC status has changed. + */ + if (strcmp(event->device_class, ACPI_BATTERY_CLASS) == 0 && + event->type == ACPI_BATTERY_NOTIFY_STATUS) + acpi_ac_get_state(ac); + + return NOTIFY_OK; +} + static int thinkpad_e530_quirk(const struct dmi_system_id *d) { ac_sleep_before_get_state_ms = 1000; @@ -215,6 +237,8 @@ static int acpi_ac_probe(struct platform_device *pdev) acpi_device_name(adev), acpi_device_bid(adev), ac->state ? "on-line" : "off-line"); + ac->battery_nb.notifier_call = acpi_ac_battery_notify; + register_acpi_notifier(&ac->battery_nb); end: if (result) kfree(ac); @@ -261,6 +285,7 @@ static int acpi_ac_remove(struct platform_device *pdev) ac = platform_get_drvdata(pdev); if (ac->charger.dev) power_supply_unregister(&ac->charger); + unregister_acpi_notifier(&ac->battery_nb); kfree(ac); diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 797a6938d051..9a2c63b20050 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -39,15 +39,13 @@ #include <linux/acpi.h> #include <linux/power_supply.h> +#include "battery.h" + #define PREFIX "ACPI: " #define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF -#define ACPI_BATTERY_CLASS "battery" #define ACPI_BATTERY_DEVICE_NAME "Battery" -#define ACPI_BATTERY_NOTIFY_STATUS 0x80 -#define ACPI_BATTERY_NOTIFY_INFO 0x81 -#define ACPI_BATTERY_NOTIFY_THRESHOLD 0x82 /* Battery power unit: 0 means mW, 1 means mA */ #define ACPI_BATTERY_POWER_UNIT_MA 1 @@ -736,6 +734,7 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event) acpi_bus_generate_netlink_event(device->pnp.device_class, dev_name(&device->dev), event, acpi_battery_present(battery)); + acpi_notifier_call_chain(device, event, acpi_battery_present(battery)); /* acpi_battery_update could remove power_supply object */ if (old && battery->bat.dev) power_supply_changed(&battery->bat); diff --git a/drivers/acpi/battery.h b/drivers/acpi/battery.h new file mode 100644 index 000000000000..6c084976987d --- /dev/null +++ b/drivers/acpi/battery.h @@ -0,0 +1,10 @@ +#ifndef __ACPI_BATTERY_H +#define __ACPI_BATTERY_H + +#define ACPI_BATTERY_CLASS "battery" + +#define ACPI_BATTERY_NOTIFY_STATUS 0x80 +#define ACPI_BATTERY_NOTIFY_INFO 0x81 +#define ACPI_BATTERY_NOTIFY_THRESHOLD 0x82 + +#endif diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index dbd48498b938..366ca40a6f70 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -37,12 +37,12 @@ #include <linux/power_supply.h> #include "sbshc.h" +#include "battery.h" #define PREFIX "ACPI: " #define ACPI_SBS_CLASS "sbs" #define ACPI_AC_CLASS "ac_adapter" -#define ACPI_BATTERY_CLASS "battery" #define ACPI_SBS_DEVICE_NAME "Smart Battery System" #define ACPI_SBS_FILE_INFO "info" #define ACPI_SBS_FILE_STATE "state" |