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ecore-drm: Added private functions to get brightness levels in backlight 

Summary:
 Added private internal functions to get various brightness levels
   1) Added _ecore_drm_actual_brightness_get to get Actual brightness
   2) Added _ecore_drm_max_brightness_get to get Max brightness
   3) Added _ecore_drm_brightness_get to get Brightness
 These functions will eventually be exposed with an API for ecore-drm
to get/set the backlight level for an output.

@feature

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

Reviewers: devilhorns

Subscribers: cedric

Differential Revision: https://phab.enlightenment.org/D1482
This commit is contained in:
vivek 2014-09-24 09:58:57 -04:00 committed by Chris Michael
parent e3c3ba4811
commit af6cb4e84a
2 changed files with 60 additions and 17 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

@ -290,14 +290,62 @@ _ecore_drm_output_mode_add(Ecore_Drm_Output *output, drmModeModeInfo *info)
return mode;
}
static double
_ecore_drm_output_brightness_get(Ecore_Drm_Backlight *backlight)
{
const char *brightness = NULL;
double ret;
brightness = eeze_udev_syspath_get_sysattr(backlight->device, "brightness");
if (!brightness) return 0;
ret = strtod(brightness, NULL);
if (ret < 0)
ret = 0;
return ret;
}
static double
_ecore_drm_output_actual_brightness_get(Ecore_Drm_Backlight *backlight)
{
const char *brightness = NULL;
double ret;
brightness = eeze_udev_syspath_get_sysattr(backlight->device, "actual_brightness");
if (!brightness) return 0;
ret = strtod(brightness, NULL);
if (ret < 0)
ret = 0;
return ret;
}
static double
_ecore_drm_output_max_brightness_get(Ecore_Drm_Backlight *backlight)
{
const char *brightness = NULL;
double ret;
brightness = eeze_udev_syspath_get_sysattr(backlight->device, "max_brightness");
if (!brightness) return 0;
ret = strtod(brightness, NULL);
if (ret < 0)
ret = 0;
return ret;
}
static Ecore_Drm_Backlight *
_ecore_drm_backlight_init(Ecore_Drm_Device *dev EINA_UNUSED, uint32_t conn_type)
_ecore_drm_output_backlight_init(Ecore_Drm_Output *output EINA_UNUSED, uint32_t conn_type)
{
Ecore_Drm_Backlight *backlight = NULL;
Ecore_Drm_Backlight_Type type = 0;
Eina_List *devs, *l;
Eina_Bool found = EINA_FALSE;
const char *device, *devtype, *tmpdevice;
const char *device, *devtype;
if (!(devs = eeze_udev_find_by_type(EEZE_UDEV_TYPE_BACKLIGHT, NULL)))
devs = eeze_udev_find_by_type(EEZE_UDEV_TYPE_LEDS, NULL);
@ -327,27 +375,20 @@ cont:
eina_stringshare_del(devtype);
if (found)
{
tmpdevice = eina_stringshare_add(device);
break;
}
}
EINA_LIST_FREE(devs, device)
eina_stringshare_del(device);
if (!found) return NULL;
if (!found) goto out;
if ((backlight = calloc(1, sizeof(Ecore_Drm_Backlight))))
{
backlight->type = type;
/* NB: This sets backlight directory path to /dev/...
* Am not sure yet if this is the desired path, or if we want the
* actual /sys path. If we want Just the syspath then 'tmpdevice' is
* already equal to that */
backlight->dir_path = eeze_udev_syspath_get_devpath(tmpdevice);
backlight->device = eina_stringshare_add(device);
}
eina_stringshare_del(tmpdevice);
out:
EINA_LIST_FREE(devs, device);
eina_stringshare_del(device);
return backlight;
}

8
src/lib/ecore_drm/ecore_drm_private.h
View File

@ -103,9 +103,11 @@ typedef enum _Ecore_Drm_Backlight_Type
typedef struct _Ecore_Drm_Backlight
{
const char *dir_path;
int brightness_max;
int brightness;
const char *device;
double brightness_max;
double brightness_actual;
double brightness;
Ecore_Drm_Backlight_Type type;
} Ecore_Drm_Backlight;