2 Copyright 2012 Jun Wako <wakojun@gmail.com>
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
29 #include "split_util.h"
30 #include "pro_micro.h"
33 #include "split_flags.h"
35 #ifdef RGBLIGHT_ENABLE
36 # include "rgblight.h"
38 #ifdef BACKLIGHT_ENABLE
39 # include "backlight.h"
40 extern backlight_config_t backlight_config;
43 #if defined(USE_I2C) || defined(EH)
49 #ifndef DEBOUNCING_DELAY
50 # define DEBOUNCING_DELAY 5
53 #if (DEBOUNCING_DELAY > 0)
54 static uint16_t debouncing_time;
55 static bool debouncing = false;
58 #if (MATRIX_COLS <= 8)
59 # define print_matrix_header() print("\nr/c 01234567\n")
60 # define print_matrix_row(row) print_bin_reverse8(matrix_get_row(row))
61 # define matrix_bitpop(i) bitpop(matrix[i])
62 # define ROW_SHIFTER ((uint8_t)1)
64 # error "Currently only supports 8 COLS"
66 static matrix_row_t matrix_debouncing[MATRIX_ROWS];
68 #define ERROR_DISCONNECT_COUNT 5
70 #define ROWS_PER_HAND (MATRIX_ROWS/2)
72 static uint8_t error_count = 0;
74 static uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
75 static uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
77 /* matrix state(1:on, 0:off) */
78 static matrix_row_t matrix[MATRIX_ROWS];
79 static matrix_row_t matrix_debouncing[MATRIX_ROWS];
81 #if (DIODE_DIRECTION == COL2ROW)
82 static void init_cols(void);
83 static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
84 static void unselect_rows(void);
85 static void select_row(uint8_t row);
86 static void unselect_row(uint8_t row);
87 #elif (DIODE_DIRECTION == ROW2COL)
88 static void init_rows(void);
89 static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
90 static void unselect_cols(void);
91 static void unselect_col(uint8_t col);
92 static void select_col(uint8_t col);
95 __attribute__ ((weak))
96 void matrix_init_kb(void) {
100 __attribute__ ((weak))
101 void matrix_scan_kb(void) {
105 __attribute__ ((weak))
106 void matrix_init_user(void) {
109 __attribute__ ((weak))
110 void matrix_scan_user(void) {
113 __attribute__ ((weak))
114 void matrix_slave_scan_user(void) {
118 uint8_t matrix_rows(void)
124 uint8_t matrix_cols(void)
129 void matrix_init(void)
135 // Set pinout for right half if pinout for that half is defined
137 #ifdef MATRIX_ROW_PINS_RIGHT
138 const uint8_t row_pins_right[MATRIX_ROWS] = MATRIX_ROW_PINS_RIGHT;
139 for (uint8_t i = 0; i < MATRIX_ROWS; i++)
140 row_pins[i] = row_pins_right[i];
142 #ifdef MATRIX_COL_PINS_RIGHT
143 const uint8_t col_pins_right[MATRIX_COLS] = MATRIX_COL_PINS_RIGHT;
144 for (uint8_t i = 0; i < MATRIX_COLS; i++)
145 col_pins[i] = col_pins_right[i];
149 // initialize row and col
150 #if (DIODE_DIRECTION == COL2ROW)
153 #elif (DIODE_DIRECTION == ROW2COL)
158 // initialize matrix state: all keys off
159 for (uint8_t i=0; i < MATRIX_ROWS; i++) {
161 matrix_debouncing[i] = 0;
164 matrix_init_quantum();
168 uint8_t _matrix_scan(void)
170 int offset = isLeftHand ? 0 : (ROWS_PER_HAND);
171 #if (DIODE_DIRECTION == COL2ROW)
172 // Set row, read cols
173 for (uint8_t current_row = 0; current_row < ROWS_PER_HAND; current_row++) {
174 # if (DEBOUNCING_DELAY > 0)
175 bool matrix_changed = read_cols_on_row(matrix_debouncing+offset, current_row);
177 if (matrix_changed) {
179 debouncing_time = timer_read();
183 read_cols_on_row(matrix+offset, current_row);
188 #elif (DIODE_DIRECTION == ROW2COL)
189 // Set col, read rows
190 for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
191 # if (DEBOUNCING_DELAY > 0)
192 bool matrix_changed = read_rows_on_col(matrix_debouncing+offset, current_col);
193 if (matrix_changed) {
195 debouncing_time = timer_read();
198 read_rows_on_col(matrix+offset, current_col);
204 # if (DEBOUNCING_DELAY > 0)
205 if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) {
206 for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
207 matrix[i+offset] = matrix_debouncing[i+offset];
216 #if defined(USE_I2C) || defined(EH)
218 // Get rows from other half over i2c
219 int i2c_transaction(void) {
220 int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
223 // write backlight info
224 #ifdef BACKLIGHT_ENABLE
226 err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
227 if (err) goto i2c_error;
229 // Backlight location
230 err = i2c_master_write(I2C_BACKLIT_START);
231 if (err) goto i2c_error;
234 i2c_master_write(get_backlight_level());
236 BACKLIT_DIRTY = false;
240 err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
241 if (err) goto i2c_error;
243 // start of matrix stored at I2C_KEYMAP_START
244 err = i2c_master_write(I2C_KEYMAP_START);
245 if (err) goto i2c_error;
248 err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ);
249 if (err) goto i2c_error;
253 for (i = 0; i < ROWS_PER_HAND-1; ++i) {
254 matrix[slaveOffset+i] = i2c_master_read(I2C_ACK);
256 matrix[slaveOffset+i] = i2c_master_read(I2C_NACK);
259 i2c_error: // the cable is disconnceted, or something else went wrong
264 #ifdef RGBLIGHT_ENABLE
266 err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
267 if (err) goto i2c_error;
270 err = i2c_master_write(I2C_RGB_START);
271 if (err) goto i2c_error;
273 uint32_t dword = eeconfig_read_rgblight();
276 err = i2c_master_write_data(&dword, 4);
277 if (err) goto i2c_error;
289 int serial_transaction(void) {
290 int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
292 if (serial_update_buffers()) {
296 for (int i = 0; i < ROWS_PER_HAND; ++i) {
297 matrix[slaveOffset+i] = serial_slave_buffer[i];
300 #ifdef RGBLIGHT_ENABLE
301 // Code to send RGB over serial goes here (not implemented yet)
304 #ifdef BACKLIGHT_ENABLE
305 // Write backlight level for slave to read
306 serial_master_buffer[SERIAL_BACKLIT_START] = backlight_config.enable ? backlight_config.level : 0;
313 uint8_t matrix_scan(void)
315 uint8_t ret = _matrix_scan();
317 #if defined(USE_I2C) || defined(EH)
318 if( i2c_transaction() ) {
320 if( serial_transaction() ) {
325 if (error_count > ERROR_DISCONNECT_COUNT) {
326 // reset other half if disconnected
327 int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
328 for (int i = 0; i < ROWS_PER_HAND; ++i) {
329 matrix[slaveOffset+i] = 0;
335 matrix_scan_quantum();
339 void matrix_slave_scan(void) {
342 int offset = (isLeftHand) ? 0 : ROWS_PER_HAND;
344 #if defined(USE_I2C) || defined(EH)
345 for (int i = 0; i < ROWS_PER_HAND; ++i) {
346 i2c_slave_buffer[I2C_KEYMAP_START+i] = matrix[offset+i];
349 for (int i = 0; i < ROWS_PER_HAND; ++i) {
350 serial_slave_buffer[i] = matrix[offset+i];
353 matrix_slave_scan_user();
356 bool matrix_is_modified(void)
358 if (debouncing) return false;
363 bool matrix_is_on(uint8_t row, uint8_t col)
365 return (matrix[row] & ((matrix_row_t)1<<col));
369 matrix_row_t matrix_get_row(uint8_t row)
374 void matrix_print(void)
376 print("\nr/c 0123456789ABCDEF\n");
377 for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
378 phex(row); print(": ");
379 pbin_reverse16(matrix_get_row(row));
384 uint8_t matrix_key_count(void)
387 for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
388 count += bitpop16(matrix[i]);
393 #if (DIODE_DIRECTION == COL2ROW)
395 static void init_cols(void)
397 for(uint8_t x = 0; x < MATRIX_COLS; x++) {
398 uint8_t pin = col_pins[x];
399 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
400 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
404 static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
406 // Store last value of row prior to reading
407 matrix_row_t last_row_value = current_matrix[current_row];
409 // Clear data in matrix row
410 current_matrix[current_row] = 0;
412 // Select row and wait for row selecton to stabilize
413 select_row(current_row);
417 for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
419 // Select the col pin to read (active low)
420 uint8_t pin = col_pins[col_index];
421 uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
423 // Populate the matrix row with the state of the col pin
424 current_matrix[current_row] |= pin_state ? 0 : (ROW_SHIFTER << col_index);
428 unselect_row(current_row);
430 return (last_row_value != current_matrix[current_row]);
433 static void select_row(uint8_t row)
435 uint8_t pin = row_pins[row];
436 _SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT
437 _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
440 static void unselect_row(uint8_t row)
442 uint8_t pin = row_pins[row];
443 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
444 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
447 static void unselect_rows(void)
449 for(uint8_t x = 0; x < ROWS_PER_HAND; x++) {
450 uint8_t pin = row_pins[x];
451 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
452 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
456 #elif (DIODE_DIRECTION == ROW2COL)
458 static void init_rows(void)
460 for(uint8_t x = 0; x < ROWS_PER_HAND; x++) {
461 uint8_t pin = row_pins[x];
462 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
463 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
467 static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
469 bool matrix_changed = false;
471 // Select col and wait for col selecton to stabilize
472 select_col(current_col);
476 for(uint8_t row_index = 0; row_index < ROWS_PER_HAND; row_index++)
479 // Store last value of row prior to reading
480 matrix_row_t last_row_value = current_matrix[row_index];
482 // Check row pin state
483 if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
485 // Pin LO, set col bit
486 current_matrix[row_index] |= (ROW_SHIFTER << current_col);
490 // Pin HI, clear col bit
491 current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
494 // Determine if the matrix changed state
495 if ((last_row_value != current_matrix[row_index]) && !(matrix_changed))
497 matrix_changed = true;
502 unselect_col(current_col);
504 return matrix_changed;
507 static void select_col(uint8_t col)
509 uint8_t pin = col_pins[col];
510 _SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT
511 _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
514 static void unselect_col(uint8_t col)
516 uint8_t pin = col_pins[col];
517 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
518 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
521 static void unselect_cols(void)
523 for(uint8_t x = 0; x < MATRIX_COLS; x++) {
524 uint8_t pin = col_pins[x];
525 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
526 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI