1 // Copyright 2014 Emilie Gillet. 2 // 3 // Author: Emilie Gillet (emilie.o.gillet@gmail.com) 4 // 5 // Permission is hereby granted, free of charge, to any person obtaining a copy 6 // of this software and associated documentation files (the "Software"), to deal 7 // in the Software without restriction, including without limitation the rights 8 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 // copies of the Software, and to permit persons to whom the Software is 10 // furnished to do so, subject to the following conditions: 11 // 12 // The above copyright notice and this permission notice shall be included in 13 // all copies or substantial portions of the Software. 14 // 15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21 // THE SOFTWARE. 22 // 23 // See http://creativecommons.org/licenses/MIT/ for more information. 24 // 25 // ----------------------------------------------------------------------------- 26 // 27 // Driver for the front panel switches. 28 29 #ifndef CLOUDS_DRIVERS_SWITCHES_H_ 30 #define CLOUDS_DRIVERS_SWITCHES_H_ 31 32 #include "stmlib/stmlib.h" 33 34 #include <stm32f4xx_conf.h> 35 36 namespace clouds { 37 38 const uint8_t kNumSwitches = 3; 39 40 class Switches { 41 public: Switches()42 Switches() { } ~Switches()43 ~Switches() { } 44 45 void Init(); 46 void Debounce(); 47 released(uint8_t index)48 inline bool released(uint8_t index) const { 49 return switch_state_[index] == 0x7f; 50 } 51 just_pressed(uint8_t index)52 inline bool just_pressed(uint8_t index) const { 53 return switch_state_[index] == 0x80; 54 } 55 pressed(uint8_t index)56 inline bool pressed(uint8_t index) const { 57 return switch_state_[index] == 0x00; 58 } 59 pressed_immediate(uint8_t index)60 inline bool pressed_immediate(uint8_t index) const { 61 if (index == kNumSwitches - 1) { 62 return !GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_8); 63 } else { 64 const uint16_t pins[] = { GPIO_Pin_11, GPIO_Pin_10 }; 65 return !GPIO_ReadInputDataBit(GPIOC, pins[index]); 66 } 67 } 68 69 private: 70 uint8_t switch_state_[kNumSwitches]; 71 72 DISALLOW_COPY_AND_ASSIGN(Switches); 73 }; 74 75 } // namespace clouds 76 77 #endif // CLOUDS_DRIVERS_SWITCHES_H_ 78