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Diffstat (limited to 'keyboards/duck/octagon/v1/matrix.c')
| -rw-r--r-- | keyboards/duck/octagon/v1/matrix.c | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/keyboards/duck/octagon/v1/matrix.c b/keyboards/duck/octagon/v1/matrix.c new file mode 100644 index 000000000..855534994 --- /dev/null +++ b/keyboards/duck/octagon/v1/matrix.c @@ -0,0 +1,227 @@ +/* +Copyright 2017 MechMerlin <mechmerlin@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 <util/delay.h> +#include <avr/io.h> +#include <stdio.h> +#include "matrix.h" +#include "util.h" +#include "print.h" +#include "debug.h" + +static uint8_t debouncing = DEBOUNCING_DELAY; + +/* matrix state(1:on, 0:off) */ +static matrix_row_t matrix[MATRIX_ROWS]; +static matrix_row_t matrix_debouncing[MATRIX_ROWS]; + +static uint8_t read_rows(uint8_t col); +static void init_rows(void); +static void unselect_cols(void); +static void select_col(uint8_t col); + + +__attribute__ ((weak)) +void matrix_init_kb(void) { + matrix_init_user(); +} + +__attribute__ ((weak)) +void matrix_scan_kb(void) { + matrix_scan_user(); +} + +__attribute__ ((weak)) +void matrix_init_user(void) { +} + +__attribute__ ((weak)) +void matrix_scan_user(void) { +} + +void backlight_init_ports(void) +{ + DDRB |= 0b00011111; // PB0 (caps), PB1 (alpha), PB2 (extra), PB3 (modnum), PB4 (caps) + DDRD |= 0b11010000; // PD4, (rgb blue), PD6 (rgb red), PD7 (rgb green) + DDRE |= 0b01000000; // PE6 (frow) +} + +void matrix_init(void) { + backlight_init_ports(); + unselect_cols(); + init_rows(); + + for (uint8_t i=0; i < MATRIX_ROWS; i++) { + matrix[i] = 0; + matrix_debouncing[i] = 0; + } + + matrix_init_quantum(); +} + +uint8_t matrix_scan(void) { + for (uint8_t col = 0; col < MATRIX_COLS; col++) { + select_col(col); + _delay_us(3); + + uint8_t rows = read_rows(col); + + for (uint8_t row = 0; row < MATRIX_ROWS; row++) { + bool prev_bit = matrix_debouncing[row] & ((matrix_row_t)1<<col); + bool curr_bit = rows & (1<<row); + if (prev_bit != curr_bit) { + matrix_debouncing[row] ^= ((matrix_row_t)1<<col); + debouncing = DEBOUNCING_DELAY; + } + } + unselect_cols(); + } + + if (debouncing) { + if (--debouncing) { + _delay_ms(1); + } else { + for (uint8_t i = 0; i < MATRIX_ROWS; i++) { + matrix[i] = matrix_debouncing[i]; + } + } + } + + matrix_scan_quantum(); + return 1; +} + +inline matrix_row_t matrix_get_row(uint8_t row) { + return matrix[row]; +} + +void matrix_print(void) { + print("\nr/c 0123456789ABCDEF\n"); + for (uint8_t row = 0; row < MATRIX_ROWS; row++) { + xprintf("%02X: %032lb\n", row, bitrev32(matrix_get_row(row))); + } +} + +/* Row pin configuration + * row: 0 1 2 3 4 5 + * pin: PB7 PD0 PD1 PD2 PD3 PD5 + * + * Esc uses its own pin PE2 + */ +static void init_rows(void) { + DDRD &= ~0b00101111; // PD0, PD1, PD2, PD3, PD5 input + PORTD &= ~0b00101111; // PD0, PD1, PD2, PD3, PD5 low + + DDRB &= ~0b10000000; // PB7 input + PORTB &= ~0b10000000; // PB7 low + + DDRE &= ~0b00000100; // PE2 input + PORTE |= 0b00000100; // PE2 high +} + +static uint8_t read_rows(uint8_t col) { + if (col == 14) { + return PINE&(1<<2) ? 0 : (1<<0); // PE2 (Row 0) + } else { + return (PIND&(1<<0) ? (1<<0) : 0) | // PD0 (Row 0) + (PIND&(1<<1) ? (1<<1) : 0) | // PD1 (Row 1) + (PIND&(1<<2) ? (1<<2) : 0) | // PD2 (Row 2) + (PIND&(1<<3) ? (1<<3) : 0) | // PD3 (Row 3) + (PIND&(1<<5) ? (1<<4) : 0) | // PD5 (Row 4) + (PINB&(1<<7) ? (1<<5) : 0); // PB7 (Row 5) + } +} + +uint8_t read_fwkey(void) +{ + return PINE&(1<<2) ? 0 : (1<<0); +} + +static void unselect_cols(void) { + DDRB |= 0b01000000; // PB6 (U2) output + PORTB &= ~0b01000000; // PB6 (U2) low + + DDRC |= 0b11000000; // PC6 (U1), PC7 (A2) output + PORTC &= ~0b11000000; // PC6 (U1), PC7 (A2) low + + DDRF |= 0b00000011; // PF0 (A0), PF1 (A1) output + PORTF &= ~0b00000011; // PF0 (A0), PF1 (A1) low +} + +static void select_col(uint8_t col) { + + switch (col) { + case 0: + PORTC |= 0b01000000; // PC6 high + break; + case 1: + PORTC |= 0b01000000; // PC6 high + PORTF |= 0b00000001; // PF0 high + break; + case 2: + PORTC |= 0b01000000; // PC6 high + PORTF |= 0b00000010; // PF1 high + break; + case 3: + PORTC |= 0b01000000; // PC6 high + PORTF |= 0b00000011; // PF0, PF1 high + break; + case 4: + PORTC |= 0b11000000; // PC6, PC7 high + break; + case 5: + PORTC |= 0b11000000; // PC6, PC7 high + PORTF |= 0b00000001; // PF0 high + break; + case 6: + PORTC |= 0b11000000; // PC6, PC7 high + PORTF |= 0b00000010; // PF1 high + break; + case 7: + PORTC |= 0b11000000; // PC6, PC7 high + PORTF |= 0b00000011; // PF0, PF1 high + break; + case 8: + PORTB |= 0b01000000; // PB6 high + break; + case 9: + PORTB |= 0b01000000; // PB6 high + PORTF |= 0b00000001; // PF0 high + break; + case 10: + PORTB |= 0b01000000; // PB6 high + PORTF |= 0b00000010; // PF1 high + break; + case 11: + PORTB |= 0b01000000; // PB6 high + PORTF |= 0b00000011; // PF0, PF1 high + break; + case 12: + PORTB |= 0b01000000; // PB6 high + PORTC |= 0b10000000; // PC7 high + break; + case 13: + PORTB |= 0b01000000; // PB6 high + PORTF |= 0b00000001; // PF0 high + PORTC |= 0b10000000; // PC7 high + break; + case 15: + PORTB |= 0b01000000; // PB6 high + PORTF |= 0b00000010; // PF1 high + PORTC |= 0b10000000; // PC7 high + break; + } +} |