diff options
Diffstat (limited to 'keyboards/handwired/dactyl/dactyl.c')
| -rw-r--r-- | keyboards/handwired/dactyl/dactyl.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/keyboards/handwired/dactyl/dactyl.c b/keyboards/handwired/dactyl/dactyl.c new file mode 100644 index 0000000000..3f59154fdc --- /dev/null +++ b/keyboards/handwired/dactyl/dactyl.c @@ -0,0 +1,80 @@ +#include "dactyl.h" +#include "i2cmaster.h" + + +bool i2c_initialized = 0; +uint8_t mcp23018_status = 0x20; + +void matrix_init_kb(void) { + DDRB &= ~(1<<4); // set B(4) as input + PORTB &= ~(1<<4); // set B(4) internal pull-up disabled + + // unused pins - C7, D4, D5, D7, E6 + // set as input with internal pull-up enabled + DDRC &= ~(1<<7); + DDRD &= ~(1<<5 | 1<<4); + DDRE &= ~(1<<6); + PORTC |= (1<<7); + PORTD |= (1<<5 | 1<<4); + PORTE |= (1<<6); + + matrix_init_user(); +} + +uint8_t init_mcp23018(void) { + mcp23018_status = 0x20; + + // I2C subsystem + + if (i2c_initialized == 0) { + i2c_init(); // on pins D(1,0) + i2c_initialized = true; + _delay_ms(1000); + } + + // set pin direction + // - unused : input : 1 + // - input : input : 1 + // - driving : output : 0 + mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(IODIRA); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(0b00000000); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(0b00111111); if (mcp23018_status) goto out; + i2c_stop(); + + // set pull-up + // - unused : on : 1 + // - input : on : 1 + // - driving : off : 0 + mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(GPPUA); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(0b00000000); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(0b00111111); if (mcp23018_status) goto out; + +out: + i2c_stop(); + + return mcp23018_status; +} + +#ifdef ONEHAND_ENABLE +__attribute__ ((weak)) +// swap-hands action needs a matrix to define the swap +const keypos_t hand_swap_config[MATRIX_ROWS][MATRIX_COLS] = { + /* Left hand, matrix positions */ + {{0,11}, {1,11}, {2,11}, {3,11}, {4,11}, {5,11}}, + {{0,10}, {1,10}, {2,10}, {3,10}, {4,10}, {5,10}}, + {{0,9}, {1,9}, {2,9}, {3,9}, {4,9}, {5,9}}, + {{0,8}, {1,8}, {2,8}, {3,8}, {4,8}, {5,8}}, + {{0,7}, {1,7}, {2,7}, {3,7}, {4,7}, {5,7}}, + {{0,6}, {1,6}, {2,6}, {3,6}, {4,6}, {5,6}}, + + /* Right hand, matrix positions */ + {{0,5}, {1,5}, {2,5}, {3,5}, {4,5}, {5,5}}, + {{0,4}, {1,4}, {2,4}, {3,4}, {4,4}, {5,4}}, + {{0,3}, {1,3}, {2,3}, {3,3}, {4,3}, {5,3}}, + {{0,2}, {1,2}, {2,2}, {3,2}, {4,2}, {5,2}}, + {{0,1}, {1,1}, {2,1}, {3,1}, {4,1}, {5,1}}, + {{0,0}, {1,0}, {2,0}, {3,0}, {4,0}, {5,0}}, +}; +#endif |