1 // Copyright 2016 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 2 switches. 28 29 #ifndef PLAITS_DRIVERS_SWITCHES_H_ 30 #define PLAITS_DRIVERS_SWITCHES_H_ 31 32 #include "stmlib/stmlib.h" 33 34 #include <stm32f37x_conf.h> 35 36 namespace plaits { 37 38 enum Switch { 39 SWITCH_ROW_1, 40 SWITCH_ROW_2, 41 SWITCH_LAST 42 }; 43 44 class Switches { 45 public: Switches()46 Switches() { } ~Switches()47 ~Switches() { } 48 49 void Init(); 50 void Debounce(); 51 released(Switch s)52 inline bool released(Switch s) const { 53 return switch_state_[s] == 0x7f; 54 } 55 just_pressed(Switch s)56 inline bool just_pressed(Switch s) const { 57 return switch_state_[s] == 0x80; 58 } 59 pressed(Switch s)60 inline bool pressed(Switch s) const { 61 return switch_state_[s] == 0x00; 62 } 63 pressed_immediate(Switch s)64 inline bool pressed_immediate(Switch s) const { 65 if (s == SWITCH_ROW_1) { 66 return !GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_7); 67 } else if (s == SWITCH_ROW_2) { 68 return !GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_6); 69 } else { 70 return false; 71 } 72 } 73 74 private: 75 uint8_t switch_state_[SWITCH_LAST]; 76 77 DISALLOW_COPY_AND_ASSIGN(Switches); 78 }; 79 80 } // namespace plaits 81 82 #endif // PLAITS_DRIVERS_SWITCHES_H_ 83