diff options
Diffstat (limited to 'keyboards/ergodox_ez/matrix.c')
| -rw-r--r-- | keyboards/ergodox_ez/matrix.c | 382 |
1 files changed, 0 insertions, 382 deletions
diff --git a/keyboards/ergodox_ez/matrix.c b/keyboards/ergodox_ez/matrix.c deleted file mode 100644 index dc29cf5cd..000000000 --- a/keyboards/ergodox_ez/matrix.c +++ /dev/null @@ -1,382 +0,0 @@ -/* - -Note for ErgoDox EZ customizers: Here be dragons! -This is not a file you want to be messing with. -All of the interesting stuff for you is under keymaps/ :) -Love, Erez - -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/>. -*/ - -/* - * scan matrix - */ -#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 "ergodox_ez.h" -#include "i2cmaster.h" -#ifdef DEBUG_MATRIX_SCAN_RATE -#include "timer.h" -#endif - -/* - * 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 -static uint8_t debouncing = DEBOUNCE; - -/* matrix state(1:on, 0:off) */ -static matrix_row_t matrix[MATRIX_ROWS]; -static matrix_row_t matrix_debouncing[MATRIX_ROWS]; - -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; - -#ifdef DEBUG_MATRIX_SCAN_RATE -uint32_t matrix_timer; -uint32_t matrix_scan_count; -#endif - - -__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; - matrix_debouncing[i] = 0; - } - -#ifdef DEBUG_MATRIX_SCAN_RATE - matrix_timer = timer_read32(); - matrix_scan_count = 0; -#endif - - matrix_init_kb(); - -} - -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; - matrix_debouncing[i] = 0; - } - -#ifdef DEBUG_MATRIX_SCAN_RATE - matrix_timer = timer_read32(); - matrix_scan_count = 0; -#endif - -} - -uint8_t matrix_scan(void) -{ - if (mcp23018_status) { // if there was an error - if (++mcp23018_reset_loop == 0) { - // 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"); - ergodox_blink_all_leds(); - } - } - } - -#ifdef DEBUG_MATRIX_SCAN_RATE - matrix_scan_count++; - - uint32_t timer_now = timer_read32(); - if (TIMER_DIFF_32(timer_now, matrix_timer)>1000) { - print("matrix scan frequency: "); - pdec(matrix_scan_count); - print("\n"); - - matrix_timer = timer_now; - matrix_scan_count = 0; - } -#endif - - for (uint8_t i = 0; i < MATRIX_ROWS; i++) { - select_row(i); - wait_us(30); // without this wait read unstable value. - matrix_row_t cols = read_cols(i); - if (matrix_debouncing[i] != cols) { - matrix_debouncing[i] = cols; - if (debouncing) { - debug("bounce!: "); debug_hex(debouncing); debug("\n"); - } - debouncing = DEBOUNCE; - } - unselect_rows(); - } - - if (debouncing) { - if (--debouncing) { - wait_us(1); - // this should be wait_ms(1) but has been left as-is at EZ's request - } 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 0123456789ABCDEF\n"); - for (uint8_t row = 0; row < MATRIX_ROWS; row++) { - phex(row); print(": "); - pbin_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 - * - * Teensy - * col: 0 1 2 3 4 5 - * pin: F0 F1 F4 F5 F6 F7 - * - * MCP23018 - * col: 0 1 2 3 4 5 - * pin: B5 B4 B3 B2 B1 B0 - */ -static void init_cols(void) -{ - // init on mcp23018 - // not needed, already done as part of init_mcp23018() - - // init on teensy - // Input with pull-up(DDR:0, PORT:1) - DDRF &= ~(1<<7 | 1<<6 | 1<<5 | 1<<4 | 1<<1 | 1<<0); - PORTF |= (1<<7 | 1<<6 | 1<<5 | 1<<4 | 1<<1 | 1<<0); -} - -static matrix_row_t read_cols(uint8_t row) -{ - if (row < 7) { - if (mcp23018_status) { // if there was an error - return 0; - } else { - uint8_t data = 0; - mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out; - mcp23018_status = i2c_write(GPIOB); if (mcp23018_status) goto out; - mcp23018_status = i2c_start(I2C_ADDR_READ); if (mcp23018_status) goto out; - data = i2c_readNak(); - data = ~data; - out: - i2c_stop(); - return data; - } - } else { - // read from teensy - return - (PINF&(1<<0) ? 0 : (1<<0)) | - (PINF&(1<<1) ? 0 : (1<<1)) | - (PINF&(1<<4) ? 0 : (1<<2)) | - (PINF&(1<<5) ? 0 : (1<<3)) | - (PINF&(1<<6) ? 0 : (1<<4)) | - (PINF&(1<<7) ? 0 : (1<<5)) ; - } -} - -/* Row pin configuration - * - * Teensy - * row: 7 8 9 10 11 12 13 - * pin: B0 B1 B2 B3 D2 D3 C6 - * - * MCP23018 - * row: 0 1 2 3 4 5 6 - * pin: A0 A1 A2 A3 A4 A5 A6 - */ -static void unselect_rows(void) -{ - // unselect on mcp23018 - if (mcp23018_status) { // if there was an error - // do nothing - } else { - // set all rows hi-Z : 1 - mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out; - mcp23018_status = i2c_write(GPIOA); if (mcp23018_status) goto out; - mcp23018_status = i2c_write( 0xFF - & ~(0<<7) - ); if (mcp23018_status) goto out; - out: - i2c_stop(); - } - - // unselect on teensy - // Hi-Z(DDR:0, PORT:0) to unselect - DDRB &= ~(1<<0 | 1<<1 | 1<<2 | 1<<3); - PORTB &= ~(1<<0 | 1<<1 | 1<<2 | 1<<3); - DDRD &= ~(1<<2 | 1<<3); - PORTD &= ~(1<<2 | 1<<3); - DDRC &= ~(1<<6); - PORTC &= ~(1<<6); -} - -static void select_row(uint8_t row) -{ - if (row < 7) { - // select on mcp23018 - if (mcp23018_status) { // if there was an error - // do nothing - } else { - // set active row low : 0 - // set other rows hi-Z : 1 - mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out; - mcp23018_status = i2c_write(GPIOA); if (mcp23018_status) goto out; - mcp23018_status = i2c_write( 0xFF & ~(1<<row) - & ~(0<<7) - ); if (mcp23018_status) goto out; - out: - i2c_stop(); - } - } else { - // select on teensy - // Output low(DDR:1, PORT:0) to select - switch (row) { - case 7: - DDRB |= (1<<0); - PORTB &= ~(1<<0); - break; - case 8: - DDRB |= (1<<1); - PORTB &= ~(1<<1); - break; - case 9: - DDRB |= (1<<2); - PORTB &= ~(1<<2); - break; - case 10: - DDRB |= (1<<3); - PORTB &= ~(1<<3); - break; - case 11: - DDRD |= (1<<2); - PORTD &= ~(1<<3); - break; - case 12: - DDRD |= (1<<3); - PORTD &= ~(1<<3); - break; - case 13: - DDRC |= (1<<6); - PORTC &= ~(1<<6); - break; - } - } -} - |