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path: root/drivers/acpi/video.c
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Diffstat (limited to 'drivers/acpi/video.c')
-rw-r--r--drivers/acpi/video.c142
1 files changed, 121 insertions, 21 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index fb9ffe9adc64..826884392e6b 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -68,7 +68,7 @@ MODULE_AUTHOR("Bruno Ducrot");
MODULE_DESCRIPTION("ACPI Video Driver");
MODULE_LICENSE("GPL");
-static bool brightness_switch_enabled;
+static bool brightness_switch_enabled = 1;
module_param(brightness_switch_enabled, bool, 0644);
/*
@@ -204,6 +204,8 @@ struct acpi_video_device {
struct acpi_video_device_flags flags;
struct acpi_video_device_cap cap;
struct list_head entry;
+ struct delayed_work switch_brightness_work;
+ int switch_brightness_event;
struct acpi_video_bus *video;
struct acpi_device *dev;
struct acpi_video_device_brightness *brightness;
@@ -230,8 +232,7 @@ static int acpi_video_device_lcd_get_level_current(
unsigned long long *level, bool raw);
static int acpi_video_get_next_level(struct acpi_video_device *device,
u32 level_current, u32 event);
-static int acpi_video_switch_brightness(struct acpi_video_device *device,
- int event);
+static void acpi_video_switch_brightness(struct work_struct *work);
static bool acpi_video_use_native_backlight(void)
{
@@ -241,13 +242,14 @@ static bool acpi_video_use_native_backlight(void)
return use_native_backlight_dmi;
}
-static bool acpi_video_verify_backlight_support(void)
+bool acpi_video_verify_backlight_support(void)
{
if (acpi_osi_is_win8() && acpi_video_use_native_backlight() &&
backlight_device_registered(BACKLIGHT_RAW))
return false;
return acpi_video_backlight_support();
}
+EXPORT_SYMBOL_GPL(acpi_video_verify_backlight_support);
/* backlight device sysfs support */
static int acpi_video_get_brightness(struct backlight_device *bd)
@@ -274,6 +276,7 @@ static int acpi_video_set_brightness(struct backlight_device *bd)
int request_level = bd->props.brightness + 2;
struct acpi_video_device *vd = bl_get_data(bd);
+ cancel_delayed_work(&vd->switch_brightness_work);
return acpi_video_device_lcd_set_level(vd,
vd->brightness->levels[request_level]);
}
@@ -460,6 +463,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
},
{
.callback = video_set_use_native_backlight,
+ .ident = "ThinkPad X230",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X230"),
+ },
+ },
+ {
+ .callback = video_set_use_native_backlight,
.ident = "ThinkPad T430 and T430s",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
@@ -468,10 +479,42 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
},
{
.callback = video_set_use_native_backlight,
- .ident = "ThinkPad X230",
+ .ident = "ThinkPad T430",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X230"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "2349D15"),
+ },
+ },
+ {
+ .callback = video_set_use_native_backlight,
+ .ident = "ThinkPad T431s",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "20AACTO1WW"),
+ },
+ },
+ {
+ .callback = video_set_use_native_backlight,
+ .ident = "ThinkPad Edge E530",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "3259A2G"),
+ },
+ },
+ {
+ .callback = video_set_use_native_backlight,
+ .ident = "ThinkPad Edge E530",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "3259CTO"),
+ },
+ },
+ {
+ .callback = video_set_use_native_backlight,
+ .ident = "ThinkPad Edge E530",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "3259HJG"),
},
},
{
@@ -563,6 +606,38 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
},
},
{
+ .callback = video_set_use_native_backlight,
+ .ident = "Acer TravelMate B113",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate B113"),
+ },
+ },
+ {
+ .callback = video_set_use_native_backlight,
+ .ident = "Acer Aspire V5-572G",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer Aspire"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "V5-572G/Dazzle_CX"),
+ },
+ },
+ {
+ .callback = video_set_use_native_backlight,
+ .ident = "Acer Aspire V5-573G",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer Aspire"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "V5-573G/Dazzle_HW"),
+ },
+ },
+ {
+ .callback = video_set_use_native_backlight,
+ .ident = "ASUS Zenbook Prime UX31A",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "UX31A"),
+ },
+ },
+ {
.callback = video_set_use_native_backlight,
.ident = "HP ProBook 4340s",
.matches = {
@@ -572,6 +647,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
},
{
.callback = video_set_use_native_backlight,
+ .ident = "HP ProBook 4540s",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "HP ProBook 4540s"),
+ },
+ },
+ {
+ .callback = video_set_use_native_backlight,
.ident = "HP ProBook 2013 models",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
@@ -590,6 +673,15 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
},
{
.callback = video_set_use_native_backlight,
+ .ident = "HP EliteBook 2014 models",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook "),
+ DMI_MATCH(DMI_PRODUCT_NAME, " G2"),
+ },
+ },
+ {
+ .callback = video_set_use_native_backlight,
.ident = "HP ZBook 14",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
@@ -1171,6 +1263,8 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
data->device_id = device_id;
data->video = video;
data->dev = device;
+ INIT_DELAYED_WORK(&data->switch_brightness_work,
+ acpi_video_switch_brightness);
attribute = acpi_video_get_device_attr(video, device_id);
@@ -1393,15 +1487,18 @@ acpi_video_get_next_level(struct acpi_video_device *device,
}
}
-static int
-acpi_video_switch_brightness(struct acpi_video_device *device, int event)
+static void
+acpi_video_switch_brightness(struct work_struct *work)
{
+ struct acpi_video_device *device = container_of(to_delayed_work(work),
+ struct acpi_video_device, switch_brightness_work);
unsigned long long level_current, level_next;
+ int event = device->switch_brightness_event;
int result = -EINVAL;
/* no warning message if acpi_backlight=vendor or a quirk is used */
if (!acpi_video_verify_backlight_support())
- return 0;
+ return;
if (!device->brightness)
goto out;
@@ -1423,8 +1520,6 @@ acpi_video_switch_brightness(struct acpi_video_device *device, int event)
out:
if (result)
printk(KERN_ERR PREFIX "Failed to switch the brightness\n");
-
- return result;
}
int acpi_video_get_edid(struct acpi_device *device, int type, int device_id,
@@ -1592,6 +1687,16 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event)
return;
}
+static void brightness_switch_event(struct acpi_video_device *video_device,
+ u32 event)
+{
+ if (!brightness_switch_enabled)
+ return;
+
+ video_device->switch_brightness_event = event;
+ schedule_delayed_work(&video_device->switch_brightness_work, HZ / 10);
+}
+
static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
{
struct acpi_video_device *video_device = data;
@@ -1609,28 +1714,23 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
switch (event) {
case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: /* Cycle brightness */
- if (brightness_switch_enabled)
- acpi_video_switch_brightness(video_device, event);
+ brightness_switch_event(video_device, event);
keycode = KEY_BRIGHTNESS_CYCLE;
break;
case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS: /* Increase brightness */
- if (brightness_switch_enabled)
- acpi_video_switch_brightness(video_device, event);
+ brightness_switch_event(video_device, event);
keycode = KEY_BRIGHTNESSUP;
break;
case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS: /* Decrease brightness */
- if (brightness_switch_enabled)
- acpi_video_switch_brightness(video_device, event);
+ brightness_switch_event(video_device, event);
keycode = KEY_BRIGHTNESSDOWN;
break;
case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: /* zero brightness */
- if (brightness_switch_enabled)
- acpi_video_switch_brightness(video_device, event);
+ brightness_switch_event(video_device, event);
keycode = KEY_BRIGHTNESS_ZERO;
break;
case ACPI_VIDEO_NOTIFY_DISPLAY_OFF: /* display device off */
- if (brightness_switch_enabled)
- acpi_video_switch_brightness(video_device, event);
+ brightness_switch_event(video_device, event);
keycode = KEY_DISPLAY_OFF;
break;
default:
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-21 05:01:18 +0300