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)
132 // JTAG disable for PORT F. write JTD bit twice within four cycles.
141 // Set pinout for right half if pinout for that half is defined
143 #ifdef MATRIX_ROW_PINS_RIGHT
144 const uint8_t row_pins_right[MATRIX_ROWS] = MATRIX_ROW_PINS_RIGHT;
145 for (uint8_t i = 0; i < MATRIX_ROWS; i++)
146 row_pins[i] = row_pins_right[i];
148 #ifdef MATRIX_COL_PINS_RIGHT
149 const uint8_t col_pins_right[MATRIX_COLS] = MATRIX_COL_PINS_RIGHT;
150 for (uint8_t i = 0; i < MATRIX_COLS; i++)
151 col_pins[i] = col_pins_right[i];
155 // initialize row and col
156 #if (DIODE_DIRECTION == COL2ROW)
159 #elif (DIODE_DIRECTION == ROW2COL)
164 // initialize matrix state: all keys off
165 for (uint8_t i=0; i < MATRIX_ROWS; i++) {
167 matrix_debouncing[i] = 0;
170 matrix_init_quantum();
174 uint8_t _matrix_scan(void)
176 int offset = isLeftHand ? 0 : (ROWS_PER_HAND);
177 #if (DIODE_DIRECTION == COL2ROW)
178 // Set row, read cols
179 for (uint8_t current_row = 0; current_row < ROWS_PER_HAND; current_row++) {
180 # if (DEBOUNCING_DELAY > 0)
181 bool matrix_changed = read_cols_on_row(matrix_debouncing+offset, current_row);
183 if (matrix_changed) {
185 debouncing_time = timer_read();
189 read_cols_on_row(matrix+offset, current_row);
194 #elif (DIODE_DIRECTION == ROW2COL)
195 // Set col, read rows
196 for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
197 # if (DEBOUNCING_DELAY > 0)
198 bool matrix_changed = read_rows_on_col(matrix_debouncing+offset, current_col);
199 if (matrix_changed) {
201 debouncing_time = timer_read();
204 read_rows_on_col(matrix+offset, current_col);
210 # if (DEBOUNCING_DELAY > 0)
211 if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) {
212 for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
213 matrix[i+offset] = matrix_debouncing[i+offset];
222 #if defined(USE_I2C) || defined(EH)
224 // Get rows from other half over i2c
225 int i2c_transaction(void) {
226 int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
229 // write backlight info
230 #ifdef BACKLIGHT_ENABLE
232 err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
233 if (err) goto i2c_error;
235 // Backlight location
236 err = i2c_master_write(I2C_BACKLIT_START);
237 if (err) goto i2c_error;
240 i2c_master_write(get_backlight_level());
242 BACKLIT_DIRTY = false;
246 err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
247 if (err) goto i2c_error;
249 // start of matrix stored at I2C_KEYMAP_START
250 err = i2c_master_write(I2C_KEYMAP_START);
251 if (err) goto i2c_error;
254 err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ);
255 if (err) goto i2c_error;
259 for (i = 0; i < ROWS_PER_HAND-1; ++i) {
260 matrix[slaveOffset+i] = i2c_master_read(I2C_ACK);
262 matrix[slaveOffset+i] = i2c_master_read(I2C_NACK);
265 i2c_error: // the cable is disconnceted, or something else went wrong
270 #ifdef RGBLIGHT_ENABLE
272 err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
273 if (err) goto i2c_error;
276 err = i2c_master_write(I2C_RGB_START);
277 if (err) goto i2c_error;
279 uint32_t dword = eeconfig_read_rgblight();
282 err = i2c_master_write_data(&dword, 4);
283 if (err) goto i2c_error;
295 int serial_transaction(void) {
296 int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
298 if (serial_update_buffers()) {
302 for (int i = 0; i < ROWS_PER_HAND; ++i) {
303 matrix[slaveOffset+i] = serial_slave_buffer[i];
306 #ifdef RGBLIGHT_ENABLE
307 // Code to send RGB over serial goes here (not implemented yet)
310 #ifdef BACKLIGHT_ENABLE
311 // Write backlight level for slave to read
312 serial_master_buffer[SERIAL_BACKLIT_START] = backlight_config.enable ? backlight_config.level : 0;
319 uint8_t matrix_scan(void)
321 uint8_t ret = _matrix_scan();
323 #if defined(USE_I2C) || defined(EH)
324 if( i2c_transaction() ) {
326 if( serial_transaction() ) {
331 if (error_count > ERROR_DISCONNECT_COUNT) {
332 // reset other half if disconnected
333 int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
334 for (int i = 0; i < ROWS_PER_HAND; ++i) {
335 matrix[slaveOffset+i] = 0;
341 matrix_scan_quantum();
345 void matrix_slave_scan(void) {
348 int offset = (isLeftHand) ? 0 : ROWS_PER_HAND;
350 #if defined(USE_I2C) || defined(EH)
351 for (int i = 0; i < ROWS_PER_HAND; ++i) {
352 i2c_slave_buffer[I2C_KEYMAP_START+i] = matrix[offset+i];
355 for (int i = 0; i < ROWS_PER_HAND; ++i) {
356 serial_slave_buffer[i] = matrix[offset+i];
360 #ifdef BACKLIGHT_ENABLE
361 // Read backlight level sent from master and update level on slave
362 backlight_set(i2c_slave_buffer[0]);
364 for (int i = 0; i < ROWS_PER_HAND; ++i) {
365 i2c_slave_buffer[i+1] = matrix[offset+i];
368 for (int i = 0; i < ROWS_PER_HAND; ++i) {
369 serial_slave_buffer[i] = matrix[offset+i];
372 #ifdef BACKLIGHT_ENABLE
373 // Read backlight level sent from master and update level on slave
374 backlight_set(serial_master_buffer[SERIAL_BACKLIT_START]);
377 matrix_slave_scan_user();
380 bool matrix_is_modified(void)
382 if (debouncing) return false;
387 bool matrix_is_on(uint8_t row, uint8_t col)
389 return (matrix[row] & ((matrix_row_t)1<<col));
393 matrix_row_t matrix_get_row(uint8_t row)
398 void matrix_print(void)
400 print("\nr/c 0123456789ABCDEF\n");
401 for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
402 phex(row); print(": ");
403 pbin_reverse16(matrix_get_row(row));
408 uint8_t matrix_key_count(void)
411 for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
412 count += bitpop16(matrix[i]);
417 #if (DIODE_DIRECTION == COL2ROW)
419 static void init_cols(void)
421 for(uint8_t x = 0; x < MATRIX_COLS; x++) {
422 uint8_t pin = col_pins[x];
423 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
424 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
428 static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
430 // Store last value of row prior to reading
431 matrix_row_t last_row_value = current_matrix[current_row];
433 // Clear data in matrix row
434 current_matrix[current_row] = 0;
436 // Select row and wait for row selecton to stabilize
437 select_row(current_row);
441 for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
443 // Select the col pin to read (active low)
444 uint8_t pin = col_pins[col_index];
445 uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
447 // Populate the matrix row with the state of the col pin
448 current_matrix[current_row] |= pin_state ? 0 : (ROW_SHIFTER << col_index);
452 unselect_row(current_row);
454 return (last_row_value != current_matrix[current_row]);
457 static void select_row(uint8_t row)
459 uint8_t pin = row_pins[row];
460 _SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT
461 _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
464 static void unselect_row(uint8_t row)
466 uint8_t pin = row_pins[row];
467 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
468 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
471 static void unselect_rows(void)
473 for(uint8_t x = 0; x < ROWS_PER_HAND; x++) {
474 uint8_t pin = row_pins[x];
475 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
476 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
480 #elif (DIODE_DIRECTION == ROW2COL)
482 static void init_rows(void)
484 for(uint8_t x = 0; x < ROWS_PER_HAND; x++) {
485 uint8_t pin = row_pins[x];
486 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
487 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
491 static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
493 bool matrix_changed = false;
495 // Select col and wait for col selecton to stabilize
496 select_col(current_col);
500 for(uint8_t row_index = 0; row_index < ROWS_PER_HAND; row_index++)
503 // Store last value of row prior to reading
504 matrix_row_t last_row_value = current_matrix[row_index];
506 // Check row pin state
507 if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
509 // Pin LO, set col bit
510 current_matrix[row_index] |= (ROW_SHIFTER << current_col);
514 // Pin HI, clear col bit
515 current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
518 // Determine if the matrix changed state
519 if ((last_row_value != current_matrix[row_index]) && !(matrix_changed))
521 matrix_changed = true;
526 unselect_col(current_col);
528 return matrix_changed;
531 static void select_col(uint8_t col)
533 uint8_t pin = col_pins[col];
534 _SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT
535 _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
538 static void unselect_col(uint8_t col)
540 uint8_t pin = col_pins[col];
541 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
542 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
545 static void unselect_cols(void)
547 for(uint8_t x = 0; x < MATRIX_COLS; x++) {
548 uint8_t pin = col_pins[x];
549 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
550 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI