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Diffstat (limited to 'keyboards/duck/tcv3/matrix.c')
| -rw-r--r-- | keyboards/duck/tcv3/matrix.c | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/keyboards/duck/tcv3/matrix.c b/keyboards/duck/tcv3/matrix.c new file mode 100644 index 000000000..38bc5c882 --- /dev/null +++ b/keyboards/duck/tcv3/matrix.c @@ -0,0 +1,272 @@ +/* +Copyright 2019 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" +#include "debounce.h" +#include "wait.h" + +/* 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) +{ + // DDRD |= 0b11010000; + // PORTD &= ~0b01010000; + // PORTD |= 0b10000000; + // DDRB |= 0b00011111; + // PORTB &= ~0b00001110; + // PORTB |= 0b00010001; + // DDRE |= 0b01000000; + // PORTE &= ~0b01000000; +} + +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; + } + + debounce_init(MATRIX_ROWS); + + matrix_init_quantum(); +} +uint8_t matrix_scan(void) { + bool changed = false; + + for (uint8_t col = 0; col < MATRIX_COLS; col++) { + select_col(col); + wait_us(30); + + 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); + changed = true; + } + } + unselect_cols(); + } + + debounce(matrix, matrix_debouncing, MATRIX_ROWS, changed); + + matrix_scan_quantum(); + return (uint8_t)changed; +} + +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 + * + * Reset Key uses its own pin PE2 + */ +static void init_rows(void) { + DDRD &= ~0b00101111; + PORTD &= ~0b00101111; + + DDRB &= ~0b10000000; + PORTB &= ~0b10000000; + + DDRE &= ~0b00000100; + PORTE |= 0b00000100; +} + +static uint8_t read_rows(uint8_t col) { + if (col == 20) { + return PINE&(1<<2) ? 0 : (1<<0); + } else { + return (PIND&(1<<0) ? (1<<1) : 0) | + (PIND&(1<<1) ? (1<<2) : 0) | + (PIND&(1<<2) ? (1<<3) : 0) | + (PIND&(1<<3) ? (1<<4) : 0) | + (PIND&(1<<5) ? (1<<5) : 0) | + (PINB&(1<<7) ? (1<<0) : 0); + } +} + + +/* Columns 0 - G + * These columns uses two 74HC237D 3 to 8 bit demultiplexers. + * + * atmega32u4 decoder pin + * C6 U1 E2 + * B6 U2 E2 + * F0 U1, U2 A0 + * F1 U1, U2 A1 + * C7 U1, U2 A2 + * + * col 0: B4 + * col 1: D7 + * col I: B5 + * + * col / pin: PC6 PB6 PF0 PF1 PC7 Decoder Pin + * 2: 1 0 0 0 0 U1 Y0 + * 3: 1 0 1 0 0 U1 Y1 + * 4: 1 0 0 1 0 U1 Y2 + * 5: 1 0 1 1 0 U1 Y3 + * 6: 1 0 0 0 1 U1 Y4 + * 7: 1 0 1 0 1 U1 Y5 + * 8: 1 0 0 1 1 U1 Y6 + * 9: 1 0 1 1 1 U1 Y7 + * A: 0 1 0 0 0 U2 Y0 + * B: 0 1 1 0 0 U2 Y1 + * C: 0 1 0 1 0 U2 Y2 + * D: 0 1 1 1 0 U2 Y3 + * E: 0 1 0 0 1 U2 Y4 + * F: 0 1 1 0 1 U2 Y5 + * G: 0 1 0 1 1 U2 Y6 + * H: 0 1 1 1 1 U2 Y7 + * + */ +static void unselect_cols(void) { + DDRB |= 0b01110000; + PORTB &= ~0b01110000; + + DDRC |= 0b11000000; + PORTC &= ~0b11000000; + + DDRD |= 0b10000000; + PORTD &= ~0b10000000; + + DDRF |= 0b00000011; + PORTF &= ~0b00000011; +} + +static void select_col(uint8_t col) { + + switch (col) { + case 0: + PORTB |= 0b00010000; + break; + case 1: + PORTD |= 0b10000000; + break; + case 2: // U1 Y0 + PORTC |= 0b01000000; + break; + case 3: // U1 Y1 + PORTC |= 0b01000000; + PORTF |= 0b00000001; + break; + case 4: // U1 Y2 + PORTC |= 0b01000000; + PORTF |= 0b00000010; + break; + case 5: // U1 Y3 + PORTC |= 0b01000000; + PORTF |= 0b00000011; + break; + case 6: // U1 Y4 + PORTC |= 0b11000000; + break; + case 7: // U1 Y5 + PORTC |= 0b11000000; + PORTF |= 0b00000001; + break; + case 8: // U1 Y6 + PORTC |= 0b11000000; + PORTF |= 0b00000010; + break; + case 9: // U1 Y7 + PORTC |= 0b11000000; + PORTF |= 0b00000011; + break; + case 10: // U2 Y0 + PORTB |= 0b01000000; + break; + case 11: // U2 Y1 + PORTB |= 0b01000000; + PORTF |= 0b00000001; + break; + case 12: // U2 Y2 + PORTB |= 0b01000000; + PORTF |= 0b00000010; + break; + case 13: // U2 Y3 + PORTB |= 0b01000000; + PORTF |= 0b00000011; + break; + case 14: // U2 Y4 + PORTB |= 0b01000000; + PORTC |= 0b10000000; + break; + case 15: // U2 Y5 + PORTB |= 0b01000000; + PORTC |= 0b10000000; + PORTF |= 0b00000001; + break; + case 16: // U2 Y6 + PORTB |= 0b01000000; + PORTC |= 0b10000000; + PORTF |= 0b00000010; + break; + case 17: // U2 Y7 + PORTB |= 0b01000000; + PORTC |= 0b10000000; + PORTF |= 0b00000011; + break; + case 18: + PORTB |= 0b00100000; + break; + } +} |