~ruther/qmk_firmware

0b8d6df39037e58b6b699332d2bbbc448889c6b2 — Drashna Jaelre 4 years ago 60c5bd7
[Keyboard] Fix issues with 3w6 rev2 matrix (#14346)

1 files changed, 10 insertions(+), 11 deletions(-)

M keyboards/3w6/rev2/matrix.c
M keyboards/3w6/rev2/matrix.c => keyboards/3w6/rev2/matrix.c +10 -11
@@ 187,23 187,20 @@ static matrix_row_t read_cols(uint8_t row) {
        } else {
            uint8_t data    = 0;
            uint8_t port0   = 0;
            tca9555_status = i2c_readReg(I2C_ADDR, IREGP0, port0, 1, I2C_TIMEOUT);
            tca9555_status  = i2c_readReg(I2C_ADDR, IREGP0, &port0, 1, I2C_TIMEOUT);
            if (tca9555_status) {  // if there was an error
                // do nothing
                return 0;
            } else {
                uint8_t port0 = ports[0];
                uint8_t port1 = ports[1];

                // We read all the pins on GPIOA.
                // The initial state was all ones and any depressed key at a given column for the currently selected row will have its bit flipped to zero.
                // The return value is a row as represented in the generic matrix code were the rightmost bits represent the lower columns and zeroes represent non-depressed keys while ones represent depressed keys.
                // the pins connected to eact columns are sequential, but in reverse order, and counting from zero down (col 5 -> GPIO04, col6  -> GPIO03 and so on).
                data |= ( port0 & 0x01 ) << 4; 
                data |= ( port0 & 0x02 ) << 2; 
                data |= ( port0 & 0x04 ); 
                data |= ( port0 & 0x08 ) >> 2; 
                data |= ( port0 & 0x10 ) >> 4; 
                data |= (port0 & 0x01) << 4;
                data |= (port0 & 0x02) << 2;
                data |= (port0 & 0x04);
                data |= (port0 & 0x08) >> 2;
                data |= (port0 & 0x10) >> 4;

                tca9555_status = I2C_STATUS_SUCCESS;
                return data;


@@ 244,11 241,13 @@ static void select_row(uint8_t row) {
                case 4: port1 &= ~(1 << 0); break;
                case 5: port1 &= ~(1 << 1); break;
                case 6: port1 &= ~(1 << 2); break;
                case 7: port0 &= ~(1 << 5); break;
                case 7:
                    port1 &= ~(1 << 3);
                    break;
                default:                    break;
            }

            tca9555_status = i2c_writeReg(I2C_ADDR, OREGP1, port1, 2, I2C_TIMEOUT);
            tca9555_status = i2c_writeReg(I2C_ADDR, OREGP1, &port1, 2, I2C_TIMEOUT);
            // Select the desired row by writing a byte for the entire GPIOB bus where only the bit representing the row we want to select is a zero (write instruction) and every other bit is a one.
            // Note that the row - MATRIX_ROWS_PER_SIDE reflects the fact that being on the right hand, the columns are numbered from MATRIX_ROWS_PER_SIDE to MATRIX_ROWS, but the pins we want to write to are indexed from zero up on the GPIOB bus.
        }