ecore-drm: add ecore_drm_devices_get to get the list of drm devices

Summary:
    when enlightenment is working as wayland display server, enlightenment
    changes KDSETMODE to KD_GRAPHICS in _ecore_drm_tty_setup(). However,
    when enlightenment is killed by SIGSEGV, it doesn't changes KDSETMODE
    to KD_TEXT because englightenment process doesn't call ecore_drm_tty_close().
    To make possible enlightenment call ecore_drm_tty_close(), drm devices
    should be exposed.
    When enlightenment is killed by SIGSEGV, it will get drm devices with
    ecore_drm_device_get_list(), and will call ecore_drm_launcher_disconnect(),
    and ecore_drm_launcher_disconnect will call ecore_drm_tty_close() internally.

@feature

Change-Id: I1c594739ec96660a09cee77b823ace6548ee5282

Reviewers: zmike, cedric, raster, gwanglim, devilhorns

Subscribers: cedric

Differential Revision: https://phab.enlightenment.org/D2159

1 files changed, 12 insertions, 0 deletions

diff --git a/src/lib/ecore_drm/ecore_drm_device.c b/src/lib/ecore_drm/ecore_drm_device.c
index 89c6b86485..917a02b117 100644
--- a/src/lib/ecore_drm/ecore_drm_device.c
+++ b/src/lib/ecore_drm/ecore_drm_device.c
@@ -5,6 +5,8 @@
 #include "ecore_drm_private.h"
 #include <dlfcn.h>
 
+static Eina_List *drm_devices;
+
 static void 
 _ecore_drm_device_cb_page_flip(int fd EINA_UNUSED, unsigned int frame EINA_UNUSED, unsigned int sec EINA_UNUSED, unsigned int usec EINA_UNUSED, void *data)
 {
@@ -191,6 +193,8 @@ cont:
         dev->session = NULL;
 
         DBG("Using Drm Device: %s", dev->drm.name);
+
+        drm_devices = eina_list_append(drm_devices, dev);
      }
 
 out:
@@ -236,6 +240,8 @@ ecore_drm_device_free(Ecore_Drm_Device *dev)
    /* free session */
    free(dev->session);
 
+   drm_devices = eina_list_remove(drm_devices, dev);
+
    /* free structure */
    free(dev);
 }
@@ -334,6 +340,12 @@ ecore_drm_device_close(Ecore_Drm_Device *dev)
    return EINA_TRUE;
 }
 
+EAPI Eina_List *
+ecore_drm_devices_get(void)
+{
+   return drm_devices;
+}
+
 /**
  * Get if a given Ecore_Drm_Device is master
  *