ecore-drm: Add support for DPMS on an output

Summary: This commit adds support for setting DPMS level of an output.
This adds a new API function 'ecore_drm_output_dpms_set' to set the
level.

@feature

Signed-off-by: Chris Michael <cp.michael@samsung.com>

Conflicts:

	src/lib/ecore_drm/Ecore_Drm.h
	src/lib/ecore_drm/ecore_drm_output.c
	src/lib/ecore_drm/ecore_drm_private.h

Change-Id: Id544f862b2f76ff10a9a1142852b505d9c4d0fbb

3 files changed, 49 insertions, 0 deletions

diff --git a/src/lib/ecore_drm/Ecore_Drm.h b/src/lib/ecore_drm/Ecore_Drm.h
index da9aa5db1e..2ce3bf7571 100644
--- a/src/lib/ecore_drm/Ecore_Drm.h
+++ b/src/lib/ecore_drm/Ecore_Drm.h
@@ -256,4 +256,18 @@ EAPI void ecore_drm_fb_destroy(Ecore_Drm_Fb *fb);
 
 EAPI Eina_Bool ecore_drm_launcher_connect(Ecore_Drm_Device *dev);
 EAPI void ecore_drm_launcher_disconnect(Ecore_Drm_Device *dev);
+
+/**
+ * Set the dpms level of an Ecore_Drm_Output
+ *
+ * This function will set the DPMS level of an Ecore_Drm_Output
+ *
+ * @param output The Ecore_Drm_Output to set the dpms level on
+ * @param level The level to set
+ *
+ * @ingroup Ecore_Drm_Output_Group
+ * @since 1.15
+ */
+EAPI void ecore_drm_output_dpms_set(Ecore_Drm_Output *output, int level);
+
 #endif
diff --git a/src/lib/ecore_drm/ecore_drm_output.c b/src/lib/ecore_drm/ecore_drm_output.c
index 1b2f0aa51d..dfa9c031ea 100644
--- a/src/lib/ecore_drm/ecore_drm_output.c
+++ b/src/lib/ecore_drm/ecore_drm_output.c
@@ -17,6 +17,25 @@ EAPI int ECORE_DRM_EVENT_OUTPUT = 0;
 
 /* local functions */
 
+static drmModePropertyPtr
+_ecore_drm_output_property_get(int fd, drmModeConnectorPtr conn, const char *name)
+{
+   drmModePropertyPtr prop;
+   int i = 0;
+
+   for (; i < conn->count_props; i++)
+     {
+        if (!(prop = drmModeGetProperty(fd, conn->props[i])))
+          continue;
+
+        if (!strcmp(prop->name, name)) return prop;
+
+        drmModeFreeProperty(prop);
+     }
+
+   return NULL;
+}
+
 static Eina_Bool 
 _ecore_drm_output_software_setup(Ecore_Drm_Device *dev, Ecore_Drm_Output *output)
 {
@@ -319,6 +338,7 @@ _ecore_drm_output_create(Ecore_Drm_Device *dev, drmModeRes *res, drmModeConnecto
    output->conn_id = conn->connector_id;
    dev->conn_allocator |= (1 << output->conn_id);
    output->crtc = drmModeGetCrtc(dev->drm.fd, output->crtc_id);
+   output->dpms = _ecore_drm_output_property_get(dev->drm.fd, conn, "DPMS");
 
    memset(&mode, 0, sizeof(mode));
    if ((enc = drmModeGetEncoder(dev->drm.fd, conn->encoder_id)))
@@ -374,6 +394,7 @@ mode_err:
    eina_stringshare_del(output->name);
    EINA_LIST_FREE(output->modes, mode)
      free(mode);
+   drmModeFreeProperty(output->dpms);
    drmModeFreeCrtc(output->crtc);
    dev->crtc_allocator &= ~(1 << output->crtc_id);
    dev->conn_allocator &= ~(1 << output->conn_id);
@@ -414,6 +435,7 @@ _ecore_drm_output_free(Ecore_Drm_Output *output)
    if (output->model) eina_stringshare_del(output->model);
    if (output->make) eina_stringshare_del(output->make);
 
+   if (output->dpms) drmModeFreeProperty(output->dpms);
    if (output->crtc) drmModeFreeCrtc(output->crtc);
 
    free(output);
@@ -793,6 +815,8 @@ ecore_drm_output_enable(Ecore_Drm_Output *output)
 
    if ((!output) || (!output->current)) return EINA_FALSE;
 
+   ecore_drm_output_dpms_set(output, DRM_MODE_DPMS_ON);
+
    mode = output->current_mode;
    if (drmModeSetCrtc(output->drm_fd, output->crtc_id, output->current->id, 
                       0, 0, &output->conn_id, 1, &mode->info) < 0)
@@ -945,3 +969,13 @@ ecore_drm_outputs_geometry_get(Ecore_Drm_Device *dev, int *x, int *y, int *w, in
    if (w) *w = ow;
    if (h) *h = oh;
 }
+
+EAPI void
+ecore_drm_output_dpms_set(Ecore_Drm_Output *output, int level)
+{
+   EINA_SAFETY_ON_NULL_RETURN(output);
+   EINA_SAFETY_ON_NULL_RETURN(output->dpms);
+
+   drmModeConnectorSetProperty(output->dev->drm.fd, output->conn_id,
+                               output->dpms->prop_id, level);
+}
diff --git a/src/lib/ecore_drm/ecore_drm_private.h b/src/lib/ecore_drm/ecore_drm_private.h
index 5f3c1bc0b4..f5e3dadbfc 100644
--- a/src/lib/ecore_drm/ecore_drm_private.h
+++ b/src/lib/ecore_drm/ecore_drm_private.h
@@ -115,6 +115,7 @@ struct _Ecore_Drm_Output
    unsigned int conn_id;
    drmModeCrtcPtr crtc;
    Eeze_Udev_Watch *watch;
+   drmModePropertyPtr dpms;
 
    int x, y;
    int drm_fd;