internals/src/Tizen.Peripheral/Interop/Pwm.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 internal static partial class Interop
  21 {
  22     internal static partial class Peripheral
  23     {
  24         internal static partial class Pwm
  25         {
  26             public enum Polarity
  27             {
  28                 ActiveHigh = 0,
  29                 ActiveLow
  30             }
  31
  32             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_pwm_open")]
  33             internal static extern ErrorCode Open(int chip, int pin, out IntPtr handle);
  34
  35             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_pwm_close")]
  36             internal static extern ErrorCode Close(IntPtr handle);
  37
  38             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_pwm_set_period")]
  39             internal static extern ErrorCode SetPeriod(IntPtr handle, uint period);
  40
  41             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_pwm_set_duty_cycle")]
  42             internal static extern ErrorCode SetDutyCycle(IntPtr handle, uint dutyCycle);
  43
  44             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_pwm_set_polarity")]
  45             internal static extern ErrorCode SetPolarity(IntPtr handle, Polarity polarity);
  46
  47             [DllImport(Libraries.Peripherial, EntryPoint = "peripheral_pwm_set_enabled")]
  48             internal static extern ErrorCode SetEnabled(IntPtr handle, bool enabled);
  49         }
  50     }
  51 }