diff options
Diffstat (limited to 'keyboards/ergodone/matrix.c')
| -rw-r--r-- | keyboards/ergodone/matrix.c | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/keyboards/ergodone/matrix.c b/keyboards/ergodone/matrix.c deleted file mode 100644 index 3973ff3484..0000000000 --- a/keyboards/ergodone/matrix.c +++ /dev/null @@ -1,256 +0,0 @@ -#include <stdint.h> -#include <stdbool.h> -#include <avr/io.h> -#include "wait.h" -#include "action_layer.h" -#include "print.h" -#include "debug.h" -#include "util.h" -#include "matrix.h" -#include "ergodone.h" -#include "expander.h" - -/* - * This constant define not debouncing time in msecs, but amount of matrix - * scan loops which should be made to get stable debounced results. - * - * On Ergodox matrix scan rate is relatively low, because of slow I2C. - * Now it's only 317 scans/second, or about 3.15 msec/scan. - * According to Cherry specs, debouncing time is 5 msec. - * - * And so, there is no sense to have DEBOUNCE higher than 2. - */ - -#ifndef DEBOUNCE -# define DEBOUNCE 5 -#endif - -/* matrix state(1:on, 0:off) */ -static matrix_row_t matrix[MATRIX_ROWS]; - -// Debouncing: store for each key the number of scans until it's eligible to -// change. When scanning the matrix, ignore any changes in keys that have -// already changed in the last DEBOUNCE scans. -static uint8_t debounce_matrix[MATRIX_ROWS * MATRIX_COLS]; - -static matrix_row_t read_cols(uint8_t row); -static void init_cols(void); -static void unselect_rows(void); -static void select_row(uint8_t row); - -__attribute__ ((weak)) -void matrix_init_user(void) {} - -__attribute__ ((weak)) -void matrix_scan_user(void) {} - -__attribute__ ((weak)) -void matrix_init_kb(void) { - matrix_init_user(); -} - -__attribute__ ((weak)) -void matrix_scan_kb(void) { - matrix_scan_user(); -} - -inline -uint8_t matrix_rows(void) -{ - return MATRIX_ROWS; -} - -inline -uint8_t matrix_cols(void) -{ - return MATRIX_COLS; -} - -void matrix_init(void) -{ - unselect_rows(); - init_cols(); - - // initialize matrix state: all keys off - for (uint8_t i=0; i < MATRIX_ROWS; i++) { - matrix[i] = 0; - for (uint8_t j=0; j < MATRIX_COLS; ++j) { - debounce_matrix[i * MATRIX_COLS + j] = 0; - } - } - - matrix_init_quantum(); -} - -void matrix_power_up(void) { - unselect_rows(); - init_cols(); - - // initialize matrix state: all keys off - for (uint8_t i=0; i < MATRIX_ROWS; i++) { - matrix[i] = 0; - } -} - -// Returns a matrix_row_t whose bits are set if the corresponding key should be -// eligible to change in this scan. -matrix_row_t debounce_mask(uint8_t row) { - matrix_row_t result = 0; - for (uint8_t j=0; j < MATRIX_COLS; ++j) { - if (debounce_matrix[row * MATRIX_COLS + j]) { - --debounce_matrix[row * MATRIX_COLS + j]; - } else { - result |= (1 << j); - } - } - return result; -} - -// Report changed keys in the given row. Resets the debounce countdowns -// corresponding to each set bit in 'change' to DEBOUNCE. -void debounce_report(matrix_row_t change, uint8_t row) { - for (uint8_t i = 0; i < MATRIX_COLS; ++i) { - if (change & (1 << i)) { - debounce_matrix[row * MATRIX_COLS + i] = DEBOUNCE; - } - } -} - -uint8_t matrix_scan(void) -{ - expander_scan(); - - for (uint8_t i = 0; i < MATRIX_ROWS; i++) { - select_row(i); - wait_us(30); // without this wait read unstable value. - matrix_row_t mask = debounce_mask(i); - matrix_row_t cols = (read_cols(i) & mask) | (matrix[i] & ~mask); - debounce_report(cols ^ matrix[i], i); - matrix[i] = cols; - - unselect_rows(); - } - - matrix_scan_quantum(); - - return 1; -} - -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 0123456789ABCDEF\n"); - for (uint8_t row = 0; row < MATRIX_ROWS; row++) { - print_hex8(row); print(": "); - print_bin_reverse16(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; -} - -/* Column pin configuration - * - * Pro Micro: 6 5 4 3 2 1 0 - * PD3 PD2 PD4 PC6 PD7 PE6 PB4 - * - * Expander: 13 12 11 10 9 8 7 - */ -static void init_cols(void) -{ - // Pro Micro - DDRE &= ~(1<<PE6); - PORTE |= (1<<PE6); - DDRD &= ~(1<<PD2 | 1<<PD3 | 1<<PD4 | 1<<PD7); - PORTD |= (1<<PD2 | 1<<PD3 | 1<<PD4 | 1<<PD7); - DDRC &= ~(1<<PC6); - PORTC |= (1<<PC6); - DDRB &= ~(1<<PB4); - PORTB |= (1<<PB4); - - // MCP23017 - expander_init(); -} - -static matrix_row_t read_cols(uint8_t row) -{ - return expander_read_row() | - (PIND&(1<<PD3) ? 0 : (1<<6)) | - (PIND&(1<<PD2) ? 0 : (1<<5)) | - (PIND&(1<<PD4) ? 0 : (1<<4)) | - (PINC&(1<<PC6) ? 0 : (1<<3)) | - (PIND&(1<<PD7) ? 0 : (1<<2)) | - (PINE&(1<<PE6) ? 0 : (1<<1)) | - (PINB&(1<<PB4) ? 0 : (1<<0)) ; -} - -/* Row pin configuration - * - * Pro Micro: 0 1 2 3 4 5 - * F4 F5 F6 F7 B1 B2 - * - * Expander: 0 1 2 3 4 5 - */ -static void unselect_rows(void) -{ - // Pro Micro - DDRF &= ~(1<<PF4 | 1<<PF5 | 1<<PF6 | 1<<PF7); - PORTF &= ~(1<<PF4 | 1<<PF5 | 1<<PF6 | 1<<PF7); - DDRB &= ~(1<<PB1 | 1<<PB2); - PORTB &= ~(1<<PB1 | 1<<PB2); - - // Expander - expander_unselect_rows(); -} - -static void select_row(uint8_t row) -{ - // Pro Micro - switch (row) { - case 0: - DDRF |= (1<<PF4); - PORTF &= ~(1<<PF4); - break; - case 1: - DDRF |= (1<<PF5); - PORTF &= ~(1<<PF5); - break; - case 2: - DDRF |= (1<<PF6); - PORTF &= ~(1<<PF6); - break; - case 3: - DDRF |= (1<<PF7); - PORTF &= ~(1<<PF7); - break; - case 4: - DDRB |= (1<<PB1); - PORTB &= ~(1<<PB1); - break; - case 5: - DDRB |= (1<<PB2); - PORTB &= ~(1<<PB2); - break; - } - - expander_select_row(row); -} - |