mirror of https://github.com/qmk/qmk_firmware
81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
#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
|