src/libdeviced/led.c

   1 /*
   2  * deviced
   3  *
   4  * Copyright (c) 2012 - 2013 Samsung Electronics Co., Ltd.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the License);
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *       http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18
  19
  20 #include <stdio.h>
  21 #include <stdbool.h>
  22 #include <errno.h>
  23 #include <libsyscommon/dbus-system.h>
  24
  25 #include "log.h"
  26 #include "common.h"
  27
  28 #define METHOD_GET_BRIGHTNESS           "GetBrightness"
  29 #define METHOD_GET_MAX_BRIGHTNESS       "GetMaxBrightness"
  30 #define METHOD_SET_BRIGHTNESS           "SetBrightness"
  31 #define METHOD_SET_IR_COMMAND           "SetIrCommand"
  32
  33 API int led_get_brightness(void)
  34 {
  35         GVariant *reply = NULL;
  36         int reply_val = 0;
  37         int ret_dbus;
  38
  39         ret_dbus = dbus_handle_method_sync_with_reply_var(DEVICED_BUS_NAME,
  40                                         DEVICED_PATH_LED,
  41                                         DEVICED_INTERFACE_LED,
  42                                         METHOD_GET_BRIGHTNESS,
  43                                         NULL,
  44                                         &reply);
  45         if (ret_dbus < 0)
  46                 return -EBADMSG;
  47
  48         if (!g_variant_get_safe(reply, "(i)", &reply_val)) {
  49                 _E("Failed to get signature(%s): no message", g_variant_get_type_string(reply));
  50                 reply_val = -EBADMSG;
  51         }
  52
  53         g_variant_unref(reply);
  54
  55         return reply_val;
  56 }
  57
  58 API int led_get_max_brightness(void)
  59 {
  60         GVariant *reply = NULL;
  61         int reply_val, ret_dbus;
  62
  63         ret_dbus = dbus_handle_method_sync_with_reply_var(DEVICED_BUS_NAME,
  64                                         DEVICED_PATH_LED,
  65                                         DEVICED_INTERFACE_LED,
  66                                         METHOD_GET_MAX_BRIGHTNESS,
  67                                         NULL,
  68                                         &reply);
  69         if (ret_dbus < 0)
  70                 return -EBADMSG;
  71
  72         if (!g_variant_get_safe(reply, "(i)", &reply_val)) {
  73                 _E("Failed to get signature(%s): no message", g_variant_get_type_string(reply));
  74                 reply_val = -EBADMSG;
  75         }
  76
  77         g_variant_unref(reply);
  78
  79         return reply_val;
  80 }
  81
  82 API int led_set_brightness_with_noti(int val, bool enable)
  83 {
  84         GVariant *reply = NULL;
  85         int reply_val, ret_dbus;
  86
  87         ret_dbus = dbus_handle_method_sync_with_reply_var(DEVICED_BUS_NAME,
  88                                                 DEVICED_PATH_LED,
  89                                                 DEVICED_INTERFACE_LED,
  90                                                 METHOD_SET_BRIGHTNESS,
  91                                                 g_variant_new("(ii)", val, enable),
  92                                                 &reply);
  93         if (ret_dbus < 0)
  94                 return -EBADMSG;
  95
  96         if (!g_variant_get_safe(reply, "(i)", &reply_val)) {
  97                 _E("Failed to get signature(%s): no message", g_variant_get_type_string(reply));
  98                 reply_val = -EBADMSG;
  99         }
 100
 101         g_variant_unref(reply);
 102
 103         return reply_val;
 104 }