evdev: add an api(pepper_evdev_device_probe) and function for opening given device

Change-Id: I14ab71e6c6c87a8f87f1d39b68913e6cd740233f
Signed-off-by: Sung-Jin Park <sj76.park@samsung.com>

diff --git a/src/lib/evdev/evdev.c b/src/lib/evdev/evdev.c
index 7083290..719c086 100644 (file)
--- a/src/lib/evdev/evdev.c
+++ b/src/lib/evdev/evdev.c
@@ -21,8 +21,94 @@
 * DEALINGS IN THE SOFTWARE.
 */
 
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
 #include <evdev-internal.h>
 #include <pepper-evdev.h>
+#include <pepper-input-backend.h>
+
+static int
+_evdev_keyboard_event_fd_read(int fd, unsigned int mask, void *data)
+{
+       /* FIXME : read events from given fd and create pepper key event(s) */
+
+       return 0;
+}
+
+static int
+_evdev_keyboard_device_open(pepper_evdev_t *evdev, const char *path)
+{
+       int fd;
+       unsigned int event_mask;
+       evdev_device_info_t *device_info = NULL;
+       pepper_input_device_t *device = NULL;
+
+       PEPPER_CHECK(path, return 0, "[%s] Given path is NULL.\n", __FUNCTION__);
+
+       fd = open(path, O_RDONLY | O_NONBLOCK | O_CLOEXEC);
+       PEPPER_CHECK(fd>=0, return 0, "[%s] Failed to open Given path of device.\n", __FUNCTION__);
+
+       device = pepper_input_device_create(evdev->compositor, WL_SEAT_CAPABILITY_KEYBOARD,
+                       NULL, NULL);
+       PEPPER_CHECK(device, goto error, "[%s] Failed to create pepper input device.\n", __FUNCTION__);
+
+       device_info = (evdev_device_info_t *)calloc(1, sizeof(evdev_device_info_t));
+       PEPPER_CHECK(device_info, goto error, "[%s] Failed to allocate memory for device info...\n", __FUNCTION__);
+
+       pepper_list_init(&device_info->link);
+
+       event_mask = WL_EVENT_ERROR | WL_EVENT_HANGUP | WL_EVENT_READABLE;
+       device_info->evdev = evdev;
+       device_info->device = device;
+       device_info->event_source = wl_event_loop_add_fd(evdev->event_loop,
+                       fd, event_mask, _evdev_keyboard_event_fd_read, device_info);
+       PEPPER_CHECK(device_info->event_source, goto error, "[%s] Failed to add fd as an event source...\n", __FUNCTION__);
+
+       pepper_list_insert(&evdev->device_list, &device_info->link);
+
+       return 1;
+
+error:
+       if (device)
+       {
+               pepper_input_device_destroy(device);
+               device = NULL;
+       }
+
+       if (device_info)
+       {
+               if (device_info->event_source)
+                       wl_event_source_remove(device_info->event_source);
+
+               free(device_info);
+               device_info = NULL;
+       }
+
+       if (fd >=0)
+               close(fd);
+
+       return 0;
+}
+
+PEPPER_API int
+pepper_evdev_device_probe(pepper_evdev_t *evdev, uint32_t caps)
+{
+       int probed = 0;
+
+       /* FIXME : probe input device under /dev/input directory */
+
+       /* Open specific device node for example */
+       if (caps & WL_SEAT_CAPABILITY_KEYBOARD)
+       {
+               probed += _evdev_keyboard_device_open(evdev, "/dev/input/event0");
+               probed += _evdev_keyboard_device_open(evdev, "/dev/input/event1");
+       }
+
+       return probed;
+}
 
 PEPPER_API pepper_evdev_t *
 pepper_evdev_create(pepper_compositor_t *compositor)
@@ -45,11 +131,29 @@ pepper_evdev_create(pepper_compositor_t *compositor)
 PEPPER_API void
 pepper_evdev_destroy(pepper_evdev_t *evdev)
 {
+       evdev_device_info_t *device_info = NULL;
+       evdev_device_info_t *tmp = NULL;
+
        if (!evdev)
                return;
 
        pepper_list_remove(&evdev->key_event_queue);
-       pepper_list_remove(&evdev->device_list);
+
+       if (!pepper_list_empty(&evdev->device_list))
+       {
+               pepper_list_for_each_safe(device_info, tmp, &evdev->device_list, link)
+               {
+                       if (device_info->device)
+                               pepper_input_device_destroy(device_info->device);
+                       if (device_info->event_source)
+                               wl_event_source_remove(device_info->event_source);
+
+                       pepper_list_remove(&device_info->link);
+                       free(device_info);
+               }
+
+               pepper_list_remove(&evdev->device_list);
+       }
 
        free(evdev);
 }

diff --git a/src/lib/evdev/pepper-evdev.h b/src/lib/evdev/pepper-evdev.h
index f7b52ae..b39a499 100644 (file)
--- a/src/lib/evdev/pepper-evdev.h
+++ b/src/lib/evdev/pepper-evdev.h
@@ -30,6 +30,9 @@
 extern "C" {
 #endif
 
+PEPPER_API int
+pepper_evdev_device_probe(pepper_evdev_t *evdev, uint32_t caps);
+
 PEPPER_API pepper_evdev_t *
 pepper_evdev_create(pepper_compositor_t *compositor);