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ACPI: video: fix LCD monitor seen as CRT

Browse source 
http://bugzilla.kernel.org/show_bug.cgi?id=7349

Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Rui Zhang 2007-01-03 23:40:53 -05:00 committed by Len Brown
parent 7523c4dd99
commit 82cae99980
1 changed files with 43 additions and 15 deletions
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58
drivers/acpi/video.c
View file

@ -57,6 +57,11 @@
#define ACPI_VIDEO_HEAD_INVALID (~0u - 1)
#define ACPI_VIDEO_HEAD_END (~0u)
#define ACPI_VIDEO_DISPLAY_CRT 1
#define ACPI_VIDEO_DISPLAY_TV 2
#define ACPI_VIDEO_DISPLAY_DVI 3
#define ACPI_VIDEO_DISPLAY_LCD 4
#define _COMPONENT ACPI_VIDEO_COMPONENT
ACPI_MODULE_NAME("acpi_video")
@ -133,9 +138,10 @@ struct acpi_video_device_flags {
u8 crt:1;
u8 lcd:1;
u8 tvout:1;
u8 dvi:1;
u8 bios:1;
u8 unknown:1;
u8 reserved:3;
u8 reserved:2;
};
struct acpi_video_device_cap {
@ -668,6 +674,8 @@ static int acpi_video_device_info_seq_show(struct seq_file *seq, void *offset)
seq_printf(seq, "LCD\n");
else if (dev->flags.tvout)
seq_printf(seq, "TVOUT\n");
else if (dev->flags.dvi)
seq_printf(seq, "DVI\n");
else
seq_printf(seq, "UNKNOWN\n");
@ -1242,6 +1250,16 @@ static int acpi_video_bus_remove_fs(struct acpi_device *device)
-------------------------------------------------------------------------- */
/* device interface */
static struct acpi_video_device_attrib*
acpi_video_get_device_attr(struct acpi_video_bus *video, unsigned long device_id)
{
int count;
for(count = 0; count < video->attached_count; count++)
if((video->attached_array[count].value.int_val & 0xffff) == device_id)
return &(video->attached_array[count].value.attrib);
return NULL;
}
static int
acpi_video_bus_get_one_device(struct acpi_device *device,
@ -1250,7 +1268,7 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
unsigned long device_id;
int status;
struct acpi_video_device *data;
struct acpi_video_device_attrib* attribute;
if (!device || !video)
return -EINVAL;
@ -1271,20 +1289,30 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
data->video = video;
data->dev = device;
switch (device_id & 0xffff) {
case 0x0100:
data->flags.crt = 1;
break;
case 0x0400:
data->flags.lcd = 1;
break;
case 0x0200:
data->flags.tvout = 1;
break;
default:
attribute = acpi_video_get_device_attr(video, device_id);
if((attribute != NULL) && attribute->device_id_scheme) {
switch (attribute->display_type) {
case ACPI_VIDEO_DISPLAY_CRT:
data->flags.crt = 1;
break;
case ACPI_VIDEO_DISPLAY_TV:
data->flags.tvout = 1;
break;
case ACPI_VIDEO_DISPLAY_DVI:
data->flags.dvi = 1;
break;
case ACPI_VIDEO_DISPLAY_LCD:
data->flags.lcd = 1;
break;
default:
data->flags.unknown = 1;
break;
}
if(attribute->bios_can_detect)
data->flags.bios = 1;
} else
data->flags.unknown = 1;
break;
}
acpi_video_device_bind(video, data);
acpi_video_device_find_cap(data);