callback: add callback for key input signal

Key callback is exclusive for a specific target. Therefore, manages
regarding key enums using device_callback_internal_e, which ranges from
1000 to 1100.

Change-Id: I1f7b60e48407d379c6cdf1af4d18e14b1b9f7155
Signed-off-by: Youngjae Cho <y0.cho@samsung.com>

diff --git a/include/callback.h b/include/callback.h
index 977a36c..fad0d72 100644 (file)
--- a/include/callback.h
+++ b/include/callback.h
@@ -44,9 +44,14 @@ typedef enum {
     DEVICE_CALLBACK_BATTERY_CHARGING, /**< Called when battery charging state is changed */
     DEVICE_CALLBACK_DISPLAY_STATE, /**< Called when a display state is changed */
     DEVICE_CALLBACK_FLASH_BRIGHTNESS, /**< Called when a flash brightness is changed (Since Tizen @if Mobile 2.4 @elseif WEARABLE 3.0 @endif) */
-    DEVICE_CALLBACK_MAX
+    DEVICE_CALLBACK_MAX,
 } device_callback_e;
 
+typedef enum {
+    DEVICE_CALLBACK_KEY_INPUT_MIN = 1000,
+    DEVICE_CALLBACK_KEY_INPUT_MAX = 1100,
+} device_callback_internal_e;
+
 
 /**
  * @brief Called when a device status is changed.

diff --git a/src/callback.c b/src/callback.c
index 76c43d4..fd28ea6 100644 (file)
--- a/src/callback.c
+++ b/src/callback.c
@@ -36,10 +36,15 @@
 struct device_cb_info {
        device_changed_cb cb;
        void *data;
+       int type;
 };
 
+#define DEVICE_CALLBACK_KEY_INPUT_SIZE    (DEVICE_CALLBACK_KEY_INPUT_MAX - DEVICE_CALLBACK_KEY_INPUT_MIN)
+
 static GList *device_cb_list[DEVICE_CALLBACK_MAX];
+static GList *device_key_cb_list;
 static int flash_sigid;
+static int key_sigid;
 
 //LCOV_EXCL_START Not called Callback
 static void battery_capacity_cb(keynode_t *key, void *data)
@@ -160,6 +165,30 @@ static void flash_state_cb(GDBusConnection *conn,
 }
 //LCOV_EXCL_STOP
 
+//LCOV_EXCL_START Target specific callback
+static void key_input_cb(GDBusConnection *conn,
+               const gchar *sender,
+               const gchar *object,
+               const gchar *interface,
+               const gchar *signal,
+               GVariant *parameters,
+               gpointer user_data)
+{
+       struct device_cb_info *cb_info;
+       GList *elem, *elem_next;
+       int type = 0;
+
+       g_variant_get(parameters, "(i)", &type);
+       if (type < DEVICE_CALLBACK_KEY_INPUT_MIN || type >= DEVICE_CALLBACK_KEY_INPUT_MAX)
+               return;
+
+       SYS_G_LIST_FOREACH_SAFE(device_key_cb_list, elem, elem_next, cb_info) {
+               if (cb_info->type == type)
+                       cb_info->cb(type, NULL, cb_info->data);
+       }
+}
+//LCOV_EXCL_STOP
+
 static int register_signal(const char *bus_name,
                const char *object_path,
                const char *interface_name,
@@ -232,7 +261,7 @@ static int unregister_signal(int *sig_id)
        return 0;
 }
 
-static int register_request(device_callback_e type)
+static int register_request(int type)
 {
        switch (type) {
        case DEVICE_CALLBACK_BATTERY_CAPACITY:
@@ -256,13 +285,21 @@ static int register_request(device_callback_e type)
                                DEVICED_INTERFACE_LED,
                                SIGNAL_FLASH_STATE, flash_state_cb, &flash_sigid);
        default:
+               if (type >= DEVICE_CALLBACK_KEY_INPUT_MIN && type < DEVICE_CALLBACK_KEY_INPUT_MAX) {
+                       if (key_sigid)
+                               return -EEXIST;
+                       return register_signal(DEVICED_BUS_NAME,
+                               DEVICED_PATH_INPUT,
+                               DEVICED_INTERFACE_INPUT,
+                               "Key", key_input_cb, &key_sigid);
+               }
                break;
        }
 
        return -EINVAL;
 }
 
-static int release_request(device_callback_e type)
+static int release_request(int type)
 {
        switch (type) {
        case DEVICE_CALLBACK_BATTERY_CAPACITY:
@@ -282,13 +319,18 @@ static int release_request(device_callback_e type)
                        return -ENOENT;
                return unregister_signal(&flash_sigid);
        default:
+               if (type >= DEVICE_CALLBACK_KEY_INPUT_MIN && type < DEVICE_CALLBACK_KEY_INPUT_MAX) {
+                       if (!key_sigid)
+                               return -ENOENT;
+                       return unregister_signal(&key_sigid);
+               }
                break;
        }
 
        return -EINVAL;
 }
 
-static int device_callback_check_feature_supported(device_callback_e type)
+static int device_callback_check_feature_supported(int type)
 {
        static bool f_display = false;
        static bool f_battery = false;
@@ -334,17 +376,20 @@ static int device_callback_check_feature_supported(device_callback_e type)
                f_flash = true;
                return 0;
        default:
-               return -EINVAL;
+               return 0;
        }
 }
 
-int device_add_callback(device_callback_e type, device_changed_cb cb, void *data)
+int device_add_callback(device_callback_e enumtype, device_changed_cb cb, void *data)
 {
        struct device_cb_info *cb_info;
        GList *elem, *elem_next;
+       GList **cb_list;
        int ret_request, n;
+       int type = (int) enumtype;
 
-       if (type < 0 || type >= DEVICE_CALLBACK_MAX)
+       if ((type < 0 || type >= DEVICE_CALLBACK_MAX)
+               && (type < DEVICE_CALLBACK_KEY_INPUT_MIN || type >= DEVICE_CALLBACK_KEY_INPUT_MAX))
                return DEVICE_ERROR_INVALID_PARAMETER;
 
        if (!cb)
@@ -353,8 +398,15 @@ int device_add_callback(device_callback_e type, device_changed_cb cb, void *data
        if (device_callback_check_feature_supported(type) != 0)
                return DEVICE_ERROR_NOT_SUPPORTED;
 
+       if (type >= 0 && type < DEVICE_CALLBACK_MAX)
+               cb_list = &device_cb_list[type];
+       else if (type >= DEVICE_CALLBACK_KEY_INPUT_MIN && type < DEVICE_CALLBACK_KEY_INPUT_MAX)
+               cb_list = &device_key_cb_list;
+       else
+               return DEVICE_ERROR_INVALID_PARAMETER;
+
        /* check if it is the first request */
-       n = SYS_G_LIST_LENGTH(device_cb_list[type]);
+       n = SYS_G_LIST_LENGTH(*cb_list);
        if (n == 0) {
                ret_request = register_request(type);
                if (ret_request < 0)
@@ -362,7 +414,7 @@ int device_add_callback(device_callback_e type, device_changed_cb cb, void *data
        }
 
        /* check for the same request */
-       SYS_G_LIST_FOREACH_SAFE(device_cb_list[type], elem, elem_next, cb_info) {
+       SYS_G_LIST_FOREACH_SAFE(*cb_list, elem, elem_next, cb_info) {
                if (cb_info->cb == cb)
                        return DEVICE_ERROR_ALREADY_IN_PROGRESS;
        }
@@ -374,19 +426,23 @@ int device_add_callback(device_callback_e type, device_changed_cb cb, void *data
 
        cb_info->cb = cb;
        cb_info->data = data;
+       cb_info->type = type;
 
-       SYS_G_LIST_APPEND(device_cb_list[type], cb_info);
+       SYS_G_LIST_APPEND(*cb_list, cb_info);
 
        return DEVICE_ERROR_NONE;
 }
 
-int device_remove_callback(device_callback_e type, device_changed_cb cb)
+int device_remove_callback(device_callback_e enumtype, device_changed_cb cb)
 {
        struct device_cb_info *cb_info;
        GList *elem, *elem_next;
+       GList **cb_list;
        int ret_request, n;
+       int type = (int) enumtype;
 
-       if (type < 0 || type >= DEVICE_CALLBACK_MAX)
+       if ((type < 0 || type >= DEVICE_CALLBACK_MAX)
+               && (type < DEVICE_CALLBACK_KEY_INPUT_MIN || type >= DEVICE_CALLBACK_KEY_INPUT_MAX))
                return DEVICE_ERROR_INVALID_PARAMETER;
 
        if (!cb)
@@ -395,8 +451,15 @@ int device_remove_callback(device_callback_e type, device_changed_cb cb)
        if (device_callback_check_feature_supported(type) != 0)
                return DEVICE_ERROR_NOT_SUPPORTED;
 
+       if (type >= 0 && type < DEVICE_CALLBACK_MAX)
+               cb_list = &device_cb_list[type];
+       else if (type >= DEVICE_CALLBACK_KEY_INPUT_MIN && type < DEVICE_CALLBACK_KEY_INPUT_MAX)
+               cb_list = &device_key_cb_list;
+       else
+               return DEVICE_ERROR_INVALID_PARAMETER;
+
        /* search for the same element with callback */
-       SYS_G_LIST_FOREACH_SAFE(device_cb_list[type], elem, elem_next, cb_info) {
+       SYS_G_LIST_FOREACH_SAFE(*cb_list, elem, elem_next, cb_info) {
                if (cb_info->cb == cb)
                        break;
        }
@@ -405,11 +468,11 @@ int device_remove_callback(device_callback_e type, device_changed_cb cb)
                return DEVICE_ERROR_INVALID_PARAMETER;
 
        /* remove device callback from list (local) */
-       SYS_G_LIST_REMOVE(device_cb_list[type], cb_info);
+       SYS_G_LIST_REMOVE(*cb_list, cb_info);
        free(cb_info);
 
        /* check if this callback is last element */
-       n = SYS_G_LIST_LENGTH(device_cb_list[type]);
+       n = SYS_G_LIST_LENGTH(*cb_list);
        if (n == 0) {
                ret_request = release_request(type);
                if (ret_request < 0)