diff options
Diffstat (limited to 'keyboards/bpiphany/ghost_squid/matrix.c')
| -rw-r--r-- | keyboards/bpiphany/ghost_squid/matrix.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/keyboards/bpiphany/ghost_squid/matrix.c b/keyboards/bpiphany/ghost_squid/matrix.c new file mode 100644 index 0000000000..b0ad607555 --- /dev/null +++ b/keyboards/bpiphany/ghost_squid/matrix.c @@ -0,0 +1,97 @@ +/* + Copyright 2014 Ralf Schmitt <ralf@bunkertor.net> + Copyright 2016 Daniel Svensson <dsvensson@gmail.com> + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "matrix.h" +#include "quantum.h" + +matrix_row_t read_rows(void) { + return + (PINB & (1 << 1) ? 0 : ((matrix_row_t)1 << 0)) | + (PINC & (1 << 2) ? 0 : ((matrix_row_t)1 << 1)) | + (PINB & (1 << 6) ? 0 : ((matrix_row_t)1 << 2)) | + (PINB & (1 << 4) ? 0 : ((matrix_row_t)1 << 3)) | + (PINB & (1 << 3) ? 0 : ((matrix_row_t)1 << 4)) | + (PINB & (1 << 2) ? 0 : ((matrix_row_t)1 << 5)) | + (PINB & (1 << 0) ? 0 : ((matrix_row_t)1 << 6)) | + (PINB & (1 << 5) ? 0 : ((matrix_row_t)1 << 7)); +} + +void select_col(uint8_t col) { + switch (col) { + case 0: PORTD = (PORTD & ~0b01111110) | 0b01100010; break; + case 1: PORTD = (PORTD & ~0b01111110) | 0b01101000; break; + case 2: PORTD = (PORTD & ~0b01111110) | 0b01101100; break; + case 3: PORTD = (PORTD & ~0b01111110) | 0b01110000; break; + case 4: PORTD = (PORTD & ~0b01111110) | 0b01111000; break; + case 5: PORTD = (PORTD & ~0b01111110) | 0b01100000; break; + case 6: PORTD = (PORTD & ~0b01111110) | 0b01110100; break; + case 7: PORTD = (PORTD & ~0b01111110) | 0b01100100; break; + case 8: PORTD = (PORTD & ~0b01111110) | 0b01111100; break; + case 9: PORTD = (PORTD & ~0b01111110) | 0b01101010; break; + case 10: PORTD = (PORTD & ~0b01111110) | 0b00110110; break; + case 11: PORTD = (PORTD & ~0b01111110) | 0b00010110; break; + case 12: PORTD = (PORTD & ~0b01111110) | 0b01001110; break; + case 13: PORTD = (PORTD & ~0b01111110) | 0b00111110; break; + case 14: PORTD = (PORTD & ~0b01111110) | 0b00011110; break; + case 15: PORTD = (PORTD & ~0b01111110) | 0b01000110; break; + case 16: PORTD = (PORTD & ~0b01111110) | 0b00100110; break; + case 17: PORTD = (PORTD & ~0b01111110) | 0b00101110; break; + } +} + +void matrix_init_custom(void) { + /* Column output pins */ + setPinOutput(D1); + setPinOutput(D2); + setPinOutput(D3); + setPinOutput(D4); + setPinOutput(D5); + setPinOutput(D6); + + /* Row input pins */ + writePinHigh(B0); + writePinHigh(B1); + writePinHigh(B2); + writePinHigh(B3); + writePinHigh(B4); + writePinHigh(B5); + writePinHigh(B6); + writePinHigh(C2); +} + +bool matrix_scan_custom(matrix_row_t current_matrix[]) { + bool changed = false; + + for (uint8_t col = 0; col < MATRIX_COLS; col++) { + select_col(col); + matrix_io_delay(); + matrix_row_t rows = read_rows(); + + for (uint8_t row = 0; row < MATRIX_ROWS; row++) { + bool prev_bit = current_matrix[row] & ((matrix_row_t)1 << col); + bool curr_bit = rows & (1 << row); + + if (prev_bit != curr_bit) { + current_matrix[row] ^= (matrix_row_t)1 << col; + changed = true; + } + } + } + + return changed; +} |