internals/src/Tizen.Peripheral/Interop/Gpio.cs

   1 /*
   2 * Copyright (c) 2020 Samsung Electronics Co., Ltd All Rights Reserved
   3 *
   4 * Licensed under the Apache License, Version 2.0 (the License);
   5 * you may not use this file except in compliance with the License.
   6 * You may obtain a copy of the License at
   7 *
   8 * http://www.apache.org/licenses/LICENSE-2.0
   9 *
  10 * Unless required by applicable law or agreed to in writing, software
  11 * distributed under the License is distributed on an AS IS BASIS,
  12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 * See the License for the specific language governing permissions and
  14 * limitations under the License.
  15 */
  16
  17 using System;
  18 using System.Runtime.InteropServices;
  19 using Tizen.Internals.Errors;
  20
  21 internal static partial class Interop
  22 {
  23     internal static partial class Peripheral
  24     {
  25         internal static partial class Gpio
  26         {
  27             public enum Direction
  28             {
  29                 In = 0,
  30                 OutHigh,
  31                 OutLow
  32             }
  33
  34             public enum EdgeType
  35             {
  36                 None = 0,
  37                 Rising,
  38                 Falling,
  39                 Both
  40             }
  41
  42             [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
  43             internal delegate void InterruptedEventCallback(IntPtr handle, ErrorCode error, IntPtr data);
  44
  45             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_gpio_open")]
  46             internal static extern ErrorCode Open(int pin, out IntPtr handle);
  47
  48             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_gpio_close")]
  49             internal static extern ErrorCode Close(IntPtr handle);
  50
  51             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_gpio_set_direction")]
  52             internal static extern ErrorCode SetDirection(IntPtr handle, Direction direction);
  53
  54             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_gpio_write")]
  55             internal static extern ErrorCode Write(IntPtr handle, uint value);
  56
  57             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_gpio_read")]
  58             internal static extern ErrorCode Read(IntPtr handle, out uint value);
  59
  60             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_gpio_set_edge_mode")]
  61             internal static extern ErrorCode SetEdgeMode(IntPtr handle, EdgeType type);
  62
  63             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_gpio_set_interrupted_cb")]
  64             internal static extern ErrorCode SetInterruptedCb(IntPtr handle, InterruptedEventCallback callback, IntPtr data);
  65
  66             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_gpio_unset_interrupted_cb")]
  67             internal static extern ErrorCode UnsetInterruptedCb(IntPtr handle);
  68         }
  69     }
  70 }