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Code Issues Releases Wiki Activity

Merge branch 'acpi-video' into release

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This commit is contained in:
Len Brown 2011-01-12 05:02:10 -05:00
commit 9e0c20bceb
5 changed files with 7 additions and 146 deletions
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5
Documentation/kernel-parameters.txt
View file

@ -199,11 +199,6 @@ and is between 256 and 4096 characters. It is defined in the file
unusable. The "log_buf_len" parameter may be useful
if you need to capture more output.
acpi_display_output= [HW,ACPI]
acpi_display_output=vendor
acpi_display_output=video
See above.
acpi_irq_balance [HW,ACPI]
ACPI will balance active IRQs
default in APIC mode

89
drivers/acpi/video.c
View file

@ -33,7 +33,6 @@
#include <linux/input.h>
#include <linux/backlight.h>
#include <linux/thermal.h>
#include <linux/video_output.h>
#include <linux/sort.h>
#include <linux/pci.h>
#include <linux/pci_ids.h>
@ -172,9 +171,6 @@ struct acpi_video_device_cap {
u8 _BQC:1; /* Get current brightness level */
u8 _BCQ:1; /* Some buggy BIOS uses _BCQ instead of _BQC */
u8 _DDC:1; /*Return the EDID for this device */
u8 _DCS:1; /*Return status of output device */
u8 _DGS:1; /*Query graphics state */
u8 _DSS:1; /*Device state set */
};
struct acpi_video_brightness_flags {
@ -202,7 +198,6 @@ struct acpi_video_device {
struct acpi_video_device_brightness *brightness;
struct backlight_device *backlight;
struct thermal_cooling_device *cooling_dev;
struct output_device *output_dev;
};
static const char device_decode[][30] = {
@ -226,10 +221,6 @@ 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 int acpi_video_device_get_state(struct acpi_video_device *device,
unsigned long long *state);
static int acpi_video_output_get(struct output_device *od);
static int acpi_video_device_set_state(struct acpi_video_device *device, int state);
/*backlight device sysfs support*/
static int acpi_video_get_brightness(struct backlight_device *bd)
@ -265,30 +256,6 @@ static struct backlight_ops acpi_backlight_ops = {
.update_status = acpi_video_set_brightness,
};
/*video output device sysfs support*/
static int acpi_video_output_get(struct output_device *od)
{
unsigned long long state;
struct acpi_video_device *vd =
(struct acpi_video_device *)dev_get_drvdata(&od->dev);
acpi_video_device_get_state(vd, &state);
return (int)state;
}
static int acpi_video_output_set(struct output_device *od)
{
unsigned long state = od->request_state;
struct acpi_video_device *vd=
(struct acpi_video_device *)dev_get_drvdata(&od->dev);
return acpi_video_device_set_state(vd, state);
}
static struct output_properties acpi_output_properties = {
.set_state = acpi_video_output_set,
.get_status = acpi_video_output_get,
};
/* thermal cooling device callbacks */
static int video_get_max_state(struct thermal_cooling_device *cooling_dev, unsigned
long *state)
@ -344,34 +311,6 @@ static struct thermal_cooling_device_ops video_cooling_ops = {
Video Management
-------------------------------------------------------------------------- */
/* device */
static int
acpi_video_device_get_state(struct acpi_video_device *device,
unsigned long long *state)
{
int status;
status = acpi_evaluate_integer(device->dev->handle, "_DCS", NULL, state);
return status;
}
static int
acpi_video_device_set_state(struct acpi_video_device *device, int state)
{
int status;
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list args = { 1, &arg0 };
unsigned long long ret;
arg0.integer.value = state;
status = acpi_evaluate_integer(device->dev->handle, "_DSS", &args, &ret);
return status;
}
static int
acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
union acpi_object **levels)
@ -831,15 +770,6 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DDC", &h_dummy1))) {
device->cap._DDC = 1;
}
if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DCS", &h_dummy1))) {
device->cap._DCS = 1;
}
if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DGS", &h_dummy1))) {
device->cap._DGS = 1;
}
if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DSS", &h_dummy1))) {
device->cap._DSS = 1;
}
if (acpi_video_backlight_support()) {
struct backlight_properties props;
@ -904,21 +834,6 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
printk(KERN_ERR PREFIX "Create sysfs link\n");
}
if (acpi_video_display_switch_support()) {
if (device->cap._DCS && device->cap._DSS) {
static int count;
char *name;
name = kasprintf(GFP_KERNEL, "acpi_video%d", count);
if (!name)
return;
count++;
device->output_dev = video_output_register(name,
NULL, device, &acpi_output_properties);
kfree(name);
}
}
}
/*
@ -1360,6 +1275,9 @@ int acpi_video_get_edid(struct acpi_device *device, int type, int device_id,
if (!video_device)
continue;
if (!video_device->cap._DDC)
continue;
if (type) {
switch (type) {
case ACPI_VIDEO_DISPLAY_CRT:
@ -1452,7 +1370,6 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
thermal_cooling_device_unregister(device->cooling_dev);
device->cooling_dev = NULL;
}
video_output_unregister(device->output_dev);
return 0;
}

57
drivers/acpi/video_detect.c
View file

@ -17,15 +17,14 @@
* capabilities the graphics cards plugged in support. The check for general
* video capabilities will be triggered by the first caller of
* acpi_video_get_capabilities(NULL); which will happen when the first
* backlight (or display output) switching supporting driver calls:
* backlight switching supporting driver calls:
* acpi_video_backlight_support();
*
* Depending on whether ACPI graphics extensions (cmp. ACPI spec Appendix B)
* are available, video.ko should be used to handle the device.
*
* Otherwise vendor specific drivers like thinkpad_acpi, asus_acpi,
* sony_acpi,... can take care about backlight brightness and display output
* switching.
* sony_acpi,... can take care about backlight brightness.
*
* If CONFIG_ACPI_VIDEO is neither set as "compiled in" (y) nor as a module (m)
* this file will not be compiled, acpi_video_get_capabilities() and
@ -83,11 +82,6 @@ long acpi_is_video_device(struct acpi_device *device)
if (!device)
return 0;
/* Is this device able to support video switching ? */
if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOD", &h_dummy)) ||
ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOS", &h_dummy)))
video_caps |= ACPI_VIDEO_OUTPUT_SWITCHING;
/* Is this device able to retrieve a video ROM ? */
if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_ROM", &h_dummy)))
video_caps |= ACPI_VIDEO_ROM_AVAILABLE;
@ -161,8 +155,6 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
*
* if (dmi_name_in_vendors("XY")) {
* acpi_video_support |=
* ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR;
* acpi_video_support |=
* ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
*}
*/
@ -212,33 +204,8 @@ int acpi_video_backlight_support(void)
EXPORT_SYMBOL(acpi_video_backlight_support);
/*
* Returns true if video.ko can do display output switching.
* This does not work well/at all with binary graphics drivers
* which disable system io ranges and do it on their own.
*/
int acpi_video_display_switch_support(void)
{
if (!acpi_video_caps_checked)
acpi_video_get_capabilities(NULL);
if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR)
return 0;
else if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO)
return 1;
if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR)
return 0;
else if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO)
return 1;
return acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING;
}
EXPORT_SYMBOL(acpi_video_display_switch_support);
/*
* Use acpi_display_output=vendor/video or acpi_backlight=vendor/video
* To force that backlight or display output switching is processed by vendor
* specific acpi drivers or video.ko driver.
* Use acpi_backlight=vendor/video to force that backlight switching
* is processed by vendor specific acpi drivers or video.ko driver.
*/
static int __init acpi_backlight(char *str)
{
@ -255,19 +222,3 @@ static int __init acpi_backlight(char *str)
return 1;
}
__setup("acpi_backlight=", acpi_backlight);
static int __init acpi_display_output(char *str)
{
if (str == NULL || *str == '\0')
return 1;
else {
if (!strcmp("vendor", str))
acpi_video_support |=
ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR;
if (!strcmp("video", str))
acpi_video_support |=
ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO;
}
return 1;
}
__setup("acpi_display_output=", acpi_display_output);

1
drivers/gpu/drm/Kconfig
View file

@ -107,7 +107,6 @@ config DRM_I915
select FB_CFB_IMAGEBLIT
# i915 depends on ACPI_VIDEO when ACPI is enabled
# but for select to work, need to select ACPI_VIDEO's dependencies, ick
select VIDEO_OUTPUT_CONTROL if ACPI
select BACKLIGHT_CLASS_DEVICE if ACPI
select INPUT if ACPI
select ACPI_VIDEO if ACPI

1
drivers/gpu/stub/Kconfig
View file

@ -3,7 +3,6 @@ config STUB_POULSBO
depends on PCI
# Poulsbo stub depends on ACPI_VIDEO when ACPI is enabled
# but for select to work, need to select ACPI_VIDEO's dependencies, ick
select VIDEO_OUTPUT_CONTROL if ACPI
select BACKLIGHT_CLASS_DEVICE if ACPI
select INPUT if ACPI
select ACPI_VIDEO if ACPI