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Diffstat (limited to 'keyboards/ergotaco/matrix.c')
| -rw-r--r-- | keyboards/ergotaco/matrix.c | 331 |
1 files changed, 0 insertions, 331 deletions
diff --git a/keyboards/ergotaco/matrix.c b/keyboards/ergotaco/matrix.c deleted file mode 100644 index e5af1c27fd..0000000000 --- a/keyboards/ergotaco/matrix.c +++ /dev/null @@ -1,331 +0,0 @@ -/* - -Copyright 2013 Oleg Kostyuk <cub.uanic@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 <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 QMK_KEYBOARD_H - -#ifndef DEBOUNCE -# define DEBOUNCE 5 -#endif - -// ATmega pin defs -#define ROW1 (1<<5) -#define COL6 (1<<0) -#define COL7 (1<<1) -#define COL8 (1<<2) -#define COL9 (1<<3) -#define COL10 (1<<2) -#define COL11 (1<<3) - - -// bit masks -#define BMASK (COL7 | COL8 | COL9 | COL6) -#define DMASK (COL10 | COL11) -#define FMASK (ROW1) - -/* matrix state(1:on, 0:off) */ -static matrix_row_t matrix[MATRIX_ROWS]; -/* - * matrix state(1:on, 0:off) - * contains the raw values without debounce filtering of the last read cycle. - */ -static matrix_row_t raw_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); - -static uint8_t mcp23018_reset_loop; -// static uint16_t mcp23018_reset_loop; - -__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) -{ - // initialize row and col - mcp23018_status = init_mcp23018(); - unselect_rows(); - init_cols(); - - // initialize matrix state: all keys off - for (uint8_t i=0; i < MATRIX_ROWS; i++) { - matrix[i] = 0; - raw_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) { - mcp23018_status = init_mcp23018(); - - 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(matrix_row_t rawcols, uint8_t row) { - matrix_row_t result = 0; - matrix_row_t change = rawcols ^ raw_matrix[row]; - raw_matrix[row] = rawcols; - for (uint8_t i = 0; i < MATRIX_COLS; ++i) { - if (debounce_matrix[row * MATRIX_COLS + i]) { - --debounce_matrix[row * MATRIX_COLS + i]; - } else { - result |= (1 << i); - } - if (change & (1 << i)) { - debounce_matrix[row * MATRIX_COLS + i] = DEBOUNCE; - } - } - return result; -} - -matrix_row_t debounce_read_cols(uint8_t row) { - // Read the row without debouncing filtering and store it for later usage. - matrix_row_t cols = read_cols(row); - // Get the Debounce mask. - matrix_row_t mask = debounce_mask(cols, row); - // debounce the row and return the result. - return (cols & mask) | (matrix[row] & ~mask);; -} - -uint8_t matrix_scan(void) -{ - // Then the keyboard - if (mcp23018_status) { // if there was an error - if (++mcp23018_reset_loop == 0) { - // if (++mcp23018_reset_loop >= 1300) { - // since mcp23018_reset_loop is 8 bit - we'll try to reset once in 255 matrix scans - // this will be approx bit more frequent than once per second - print("trying to reset mcp23018\n"); - mcp23018_status = init_mcp23018(); - if (mcp23018_status) { - print("left side not responding\n"); - } else { - print("left side attached\n"); - } - } - } - - for (uint8_t i = 0; i < MATRIX_ROWS_PER_SIDE; i++) { - select_row(i); - // and select on left hand - select_row(i + MATRIX_ROWS_PER_SIDE); - // we don't need a 30us delay anymore, because selecting a - // left-hand row requires more than 30us for i2c. - - // grab cols from left hand - matrix[i] = debounce_read_cols(i); - // grab cols from right hand - matrix[i + MATRIX_ROWS_PER_SIDE] = debounce_read_cols(i + MATRIX_ROWS_PER_SIDE); - - unselect_rows(); - } - - matrix_scan_quantum(); - -#ifdef DEBUG_MATRIX - for (uint8_t c = 0; c < MATRIX_COLS; c++) - for (uint8_t r = 0; r < MATRIX_ROWS; r++) - if (matrix_is_on(r, c)) xprintf("r:%d c:%d \n", r, c); -#endif - - return 1; -} - -bool matrix_is_modified(void) // deprecated and evidently not called. -{ - 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 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; -} - -// Remember this means ROWS -static void init_cols(void) -{ - // init on mcp23018 - // not needed, already done as part of init_mcp23018() - - // Input with pull-up(DDR:0, PORT:1) - DDRF &= ~FMASK; - PORTF |= FMASK; -} - -static matrix_row_t read_cols(uint8_t row) -{ - if (row < 6) { - if (mcp23018_status) { // if there was an error - return 0; - } else { - uint8_t data = 0; - mcp23018_status = i2c_start(I2C_ADDR_WRITE, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out; - mcp23018_status = i2c_write(GPIOB, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out; - mcp23018_status = i2c_start(I2C_ADDR_READ, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out; - mcp23018_status = i2c_read_nack(ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status < 0) goto out; - data = (~((uint8_t)mcp23018_status) >> 2) & 0x01 ; - mcp23018_status = I2C_STATUS_SUCCESS; - out: - i2c_stop(); - -#ifdef DEBUG_MATRIX - if (data != 0x00) xprintf("I2C: %d\n", data); -#endif - return data; - } - } else { - // Read using bitmask - return ~((((PINF & ROW1) >> 5)) & 0x1); - } -} - -// Row pin configuration -static void unselect_rows(void) -{ - // no need to unselect on mcp23018, because the select step sets all - // the other row bits high, and it's not changing to a different - // direction - // Hi-Z(DDR:0, PORT:0) to unselect - DDRB &= ~BMASK; - PORTB &= ~BMASK; - DDRD &= ~DMASK; - PORTD &= ~DMASK; -} - -static void select_row(uint8_t row) -{ - if (row < 6) { - // select on mcp23018 - if (mcp23018_status) { // do nothing on error - // Read using bitmask - } else { // set active row low : 0 // set other rows hi-Z : 1 - mcp23018_status = i2c_start(I2C_ADDR_WRITE, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out; - mcp23018_status = i2c_write(GPIOA, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out; - mcp23018_status = i2c_write(~(1<<row), ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out; - out: - i2c_stop(); - } - } else { - // Output low(DDR:1, PORT:0) to select - switch (row) { - case 6: - DDRB |= COL6; - PORTB &= ~COL6; - break; - case 7: - DDRB |= COL7; - PORTB &= ~COL7; - break; - case 8: - DDRB |= COL8; - PORTB &= ~COL8; - break; - case 9: - DDRB |= COL9; - PORTB &= ~COL9; - break; - case 10: - DDRD |= COL10; - PORTD &= ~COL10; - break; - case 11: - DDRD |= COL11; - PORTD &= ~COL11; - break; - } - } -} |