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Diffstat (limited to 'keyboards/kinesis/alvicstep/matrix.c')
| -rw-r--r-- | keyboards/kinesis/alvicstep/matrix.c | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/keyboards/kinesis/alvicstep/matrix.c b/keyboards/kinesis/alvicstep/matrix.c new file mode 100644 index 000000000..cb0d5ad7d --- /dev/null +++ b/keyboards/kinesis/alvicstep/matrix.c @@ -0,0 +1,228 @@ +/* +Copyright 2014 Warren Janssens <warren.janssens@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/>. +*/ + +/* + * scan matrix + */ +#include <stdint.h> +#include <stdbool.h> +#include <avr/io.h> +#include <util/delay.h> +#include "action_layer.h" +#include "print.h" +#include "debug.h" +#include "util.h" +#include "matrix.h" +#include "led.h" +#include "config.h" + +#ifndef DEBOUNCE +# define DEBOUNCE 5 +#endif +static uint8_t debouncing = DEBOUNCE; + +/* matrix state(1:on, 0:off) */ +static uint8_t matrix[MATRIX_ROWS]; +static uint8_t matrix_debouncing[MATRIX_ROWS]; + +static matrix_row_t read_row(uint8_t row); +static void unselect_rows(void); +static void select_rows(uint8_t row); + +__attribute__ ((weak)) +void matrix_init_quantum(void) { + matrix_init_kb(); +} + +__attribute__ ((weak)) +void matrix_scan_quantum(void) { + matrix_scan_kb(); +} + +__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) { +} + +inline +uint8_t matrix_rows(void) +{ + return MATRIX_ROWS; +} + + +inline +uint8_t matrix_cols(void) +{ + return MATRIX_COLS; +} + +void matrix_init(void) +{ + //debug_enable = true; + + //dprint("matrix_init"); dprintln(); + // output high (leds) + DDRD = 0xFF; + PORTD = 0xFF; + + // output low (multiplexers) + DDRF = 0xFF; + PORTF = 0x00; + + // input with pullup (matrix) + DDRB = 0x00; + PORTB = 0xFF; + + // input with pullup (program and keypad buttons) + DDRC = 0x00; + PORTC = 0xFF; + + // initialize row and col + unselect_rows(); + + // initialize matrix state: all keys off + for (uint8_t i=0; i < MATRIX_ROWS; i++) { + matrix[i] = 0; + matrix_debouncing[i] = 0; + } + +} + +uint8_t matrix_scan(void) +{ + + for (uint8_t i = 0; i < MATRIX_ROWS; i++) { + select_rows(i); + uint8_t row = read_row(i); + if (matrix_debouncing[i] != row) { + matrix_debouncing[i] = row; + if (debouncing) { + debug("bounce!: "); debug_hex(debouncing); debug("\n"); + } + debouncing = DEBOUNCE; + } + unselect_rows(); + } + + 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; +} + +bool matrix_is_modified(void) +{ + if (debouncing) return false; + return true; +} + +inline +bool matrix_is_on(uint8_t row, uint8_t col) +{ + return (matrix[row] & ((matrix_row_t)1<<col)); +} + +inline +matrix_row_t matrix_get_row(uint8_t row) +{ + return matrix[row]; +} + +void matrix_print(void) +{ + print("\nr/c 01234567\n"); + for (uint8_t row = 0; row < MATRIX_ROWS; row++) { + phex(row); print(": "); + pbin_reverse(matrix_get_row(row)); + print("\n"); + } +} + +uint8_t matrix_key_count(void) +{ + uint8_t count = 0; + for (uint8_t i = 0; i < MATRIX_ROWS; i++) { + count += bitpop16(matrix[i]); + } + return count; +} + +static matrix_row_t read_row(uint8_t row) +{ + _delay_us(30); // without this wait read unstable value. + + //keypad and program buttons + if (row == 12) + { + return ~(PINC | 0b00111111); + } + return ~PINB; +} + +static void unselect_rows(void) +{ + // set A,B,C,G to 0 (F4 - F7) + PORTF &= 0x0F; +} + +static void select_rows(uint8_t row) +{ + // set A,B,C,G to row value + PORTF |= row << 4; +} + + +/* Row pin configuration +PF0 A +PF1 B +PF2 C +PF3 G 0 = U4, 1 = U5 + + 4y0 4y1 4y2 4y3 4y4 4y5 4y6 4y7 5y0 5y1 5y2 5y3 5y4 5y5 5y6 5y7 + r1 r2 r3 r4 r5 r6 r7 r8 r9 r10 r11 r12 r13 r14 r15 r16 +PB0 21 c1 f6 f8 f7 5 4 3 2 1 =+ +PB1 22 c2 f3 f5 f4 t r e w q TAB +PB2 23 c3 ESC f2 f1 g f d s a CL +PB3 24 c4 f9 f11 f10 b v c x z LS UP DN [{ ]} +PB4 25 c5 f12 SL PS RT LT §± `~ 6 7 8 9 0 -_ +PB5 26 c6 PB PGM KPD y u i o p \ +PB6 27 c7 LC DL BS RC EN SP h j k l ;: '" +PB7 28 c8 RA PU PD n m ,< .> /? RS + */ + + |