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Ecore_drm: Added initial support for backlight in ecore_drm module 

Summary:
Added initial support for backlight in drm by adding various structures
and provided api for initializing the backlight struct.

Signed-off-by: vivek <vivek.ellur@samsung.com>

Reviewers: devilhorns, stefan_schmidt

Subscribers: stefan_schmidt, cedric

Differential Revision: https://phab.enlightenment.org/D1448
This commit is contained in:
vivek 2014-09-23 08:28:08 -04:00 committed by Chris Michael
parent 13295d7350
commit 05ea3edda5
2 changed files with 85 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

69
src/lib/ecore_drm/ecore_drm_output.c
View File

@ -290,6 +290,75 @@ _ecore_drm_output_mode_add(Ecore_Drm_Output *output, drmModeModeInfo *info)
return mode;
}
static Ecore_Drm_Backlight *
_ecore_drm_backlight_init(Ecore_Drm_Device *dev, uint32_t conn_type)
{
Ecore_Drm_Backlight *backlight = NULL;
Ecore_Drm_Backlight_Type type = 0;
struct udev_enumerate *enumerate;
struct udev_device *device;
struct udev_list_entry *item, *first;
const char *dev_type, *backlight_path;
int ret;
enumerate = udev_enumerate_new(udev);
if (!enumerate)
return NULL;
udev_enumerate_add_match_subsystem(enumerate, "backlight");
ret = udev_enumerate_scan_devices(enumerate);
if (ret < 0)
{
udev_enumerate_add_match_subsystem(enumerate, "leds");
ret = udev_enumerate_scan_devices(enumerate);
if (ret < 0)
{
udev_enumerate_unref(enumerate);
return NULL;
}
}
first = udev_enumerate_get_list_entry(enumerate);
udev_list_entry_foreach(item, first)
{
backlight_path = udev_list_entry_get_name(item);
device = udev_device_new_from_syspath(udev, backlight_path);
dev_type = udev_device_get_sysattr_value(device, "type");
if (!dev_type)
{
udev_device_unref(device);
udev_enumerate_unref(enumerate);
return NULL;
}
if (!strcmp(dev_type, "raw"))
type = ECORE_DRM_BACKLIGHT_RAW;
else if (!strcmp(dev_type, "platform"))
type = ECORE_DRM_BACKLIGHT_PLATFORM;
else if (!strcmp(dev_type, "firmware"))
type = ECORE_DRM_BACKLIGHT_FIRMWARE;
if (conn_type != DRM_MODE_CONNECTOR_LVDS &&
conn_type != DRM_MODE_CONNECTOR_eDP)
{
if (type != ECORE_DRM_BACKLIGHT_RAW)
{
udev_device_unref(device);
udev_enumerate_unref(enumerate);
return NULL;
}
}
udev_device_unref(device);
}
udev_enumerate_unref(enumerate);
backlight = (Ecore_Drm_Backlight *)malloc(sizeof(Ecore_Drm_Backlight));
backlight->type = type;
backlight->dir_path = eina_stringshare_add(backlight_path);
return backlight;
}
static Ecore_Drm_Output *
_ecore_drm_output_create(Ecore_Drm_Device *dev, drmModeRes *res, drmModeConnector *conn, int x, int y)
{

16
src/lib/ecore_drm/ecore_drm_private.h
View File

@ -96,6 +96,21 @@ struct _Ecore_Drm_Output_Mode
drmModeModeInfo info;
};
typedef enum _Ecore_Drm_Backlight_Type
{
ECORE_DRM_BACKLIGHT_RAW,
ECORE_DRM_BACKLIGHT_PLATFORM,
ECORE_DRM_BACKLIGHT_FIRMWARE
} Ecore_Drm_Backlight_Type;
typedef struct _Ecore_Drm_Backlight
{
const char *dir_path;
int brightness_max;
int brightness;
Ecore_Drm_Backlight_Type type;
} Ecore_Drm_Backlight;
struct _Ecore_Drm_Output
{
Ecore_Drm_Device *dev;
@ -120,6 +135,7 @@ struct _Ecore_Drm_Output
Ecore_Drm_Fb *current, *next;
Ecore_Drm_Fb *dumb[NUM_FRAME_BUFFERS];
Ecore_Drm_Backlight *backlight;
/* # ifdef HAVE_GBM */
/* struct gbm_surface *surface; */