gergo.c (2203B)
1 // Jane Bernhardt (https://github.com/germ) 2 // SPDX-License-Identifier: GPL-2.0+ 3 4 #include "gergo.h" 5 6 bool i2c_initialized = 0; 7 i2c_status_t mcp23018_status = 0x20; 8 9 void matrix_init_kb(void) { 10 // (tied to Vcc for hardware convenience) 11 //gpio_set_pin_input(B4); // set B(4) as input, internal pull-up disabled 12 13 // unused pins - C7, D4, D5, D6, D7, E6 14 // set as input with internal pull-up enabled 15 gpio_set_pin_input_high(C7); 16 gpio_set_pin_input_high(D4); 17 gpio_set_pin_input_high(D5); 18 gpio_set_pin_input_high(D6); 19 gpio_set_pin_input_high(D7); 20 gpio_set_pin_input_high(E6); 21 22 matrix_init_user(); 23 } 24 25 26 uint8_t init_mcp23018(void) { 27 print("starting init"); 28 mcp23018_status = 0x20; 29 30 // I2C subsystem 31 32 // uint8_t sreg_prev; 33 // sreg_prev=SREG; 34 // cli(); 35 36 if (i2c_initialized == 0) { 37 i2c_init(); // on pins D(1,0) 38 i2c_initialized = true; 39 _delay_ms(1000); 40 } 41 // i2c_init(); // on pins D(1,0) 42 // _delay_ms(1000); 43 44 // set pin direction 45 // - unused : input : 1 46 // - input : input : 1 47 // - driving : output : 0 48 uint8_t data[] = {0b10000000, 0b11111111}; 49 mcp23018_status = i2c_write_register(I2C_ADDR, IODIRA, data, sizeof(data), I2C_TIMEOUT); 50 51 if (!mcp23018_status) { 52 // set pull-up 53 // - unused : on : 1 54 // - input : on : 1 55 // - driving : off : 0 56 mcp23018_status = i2c_write_register(I2C_ADDR, GPPUA, data, sizeof(data), I2C_TIMEOUT); 57 } 58 59 // SREG=sreg_prev; 60 //uprintf("Init %x\n", mcp23018_status); 61 return mcp23018_status; 62 } 63 64 const keypos_t PROGMEM hand_swap_config[MATRIX_ROWS][MATRIX_COLS] = { 65 { {0,0}, {0,7}, {2,7}, {3,7} }, 66 { {0,8}, {1,8}, {2,8}, {3,8} }, 67 { {0,9}, {1,9}, {2,9}, {3,9} }, 68 { {0,10}, {1,10}, {2,10}, {3,10} }, 69 { {0,11}, {1,11}, {2,11}, {3,11} }, 70 { {0,12}, {1,12}, {2,12}, {0,0} }, 71 { {0,13}, {1,13}, {2,13}, {0,0} }, 72 73 { {1,0}, {0,0}, {2,0}, {3,0} }, 74 { {0,1}, {1,1}, {2,1}, {3,1} }, 75 { {0,2}, {1,2}, {2,2}, {3,2} }, 76 { {0,3}, {1,3}, {2,3}, {3,3} }, 77 { {0,4}, {1,4}, {2,4}, {3,4} }, 78 { {0,5}, {1,5}, {2,5}, {3,5} }, 79 { {0,6}, {1,6}, {2,6}, {3,6} } 80 };