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/>.
26 #include "split_util.h"
30 #include "transport.h"
36 #if (MATRIX_COLS <= 8)
37 # define print_matrix_header() print("\nr/c 01234567\n")
38 # define print_matrix_row(row) print_bin_reverse8(matrix_get_row(row))
39 # define matrix_bitpop(i) bitpop(matrix[i])
40 # define ROW_SHIFTER ((uint8_t)1)
41 #elif (MATRIX_COLS <= 16)
42 # define print_matrix_header() print("\nr/c 0123456789ABCDEF\n")
43 # define print_matrix_row(row) print_bin_reverse16(matrix_get_row(row))
44 # define matrix_bitpop(i) bitpop16(matrix[i])
45 # define ROW_SHIFTER ((uint16_t)1)
46 #elif (MATRIX_COLS <= 32)
47 # define print_matrix_header() print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
48 # define print_matrix_row(row) print_bin_reverse32(matrix_get_row(row))
49 # define matrix_bitpop(i) bitpop32(matrix[i])
50 # define ROW_SHIFTER ((uint32_t)1)
53 #define ERROR_DISCONNECT_COUNT 5
55 #define ROWS_PER_HAND (MATRIX_ROWS / 2)
58 static pin_t direct_pins[MATRIX_ROWS][MATRIX_COLS] = DIRECT_PINS;
60 static pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
61 static pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
64 /* matrix state(1:on, 0:off) */
65 static matrix_row_t matrix[MATRIX_ROWS];
66 static matrix_row_t raw_matrix[ROWS_PER_HAND];
68 // row offsets for each hand
69 uint8_t thisHand, thatHand;
71 // user-defined overridable functions
73 __attribute__((weak)) void matrix_init_kb(void) { matrix_init_user(); }
75 __attribute__((weak)) void matrix_scan_kb(void) { matrix_scan_user(); }
77 __attribute__((weak)) void matrix_init_user(void) {}
79 __attribute__((weak)) void matrix_scan_user(void) {}
81 __attribute__((weak)) void matrix_slave_scan_user(void) {}
85 inline uint8_t matrix_rows(void) { return MATRIX_ROWS; }
87 inline uint8_t matrix_cols(void) { return MATRIX_COLS; }
89 bool matrix_is_modified(void) {
90 if (debounce_active()) return false;
94 inline bool matrix_is_on(uint8_t row, uint8_t col) { return (matrix[row] & ((matrix_row_t)1 << col)); }
96 inline matrix_row_t matrix_get_row(uint8_t row) { return matrix[row]; }
98 void matrix_print(void) {
99 print_matrix_header();
101 for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
104 print_matrix_row(row);
109 uint8_t matrix_key_count(void) {
111 for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
112 count += matrix_bitpop(i);
121 static void init_pins(void) {
122 for (int row = 0; row < MATRIX_ROWS; row++) {
123 for (int col = 0; col < MATRIX_COLS; col++) {
124 pin_t pin = direct_pins[row][col];
126 setPinInputHigh(pin);
132 static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
133 matrix_row_t last_row_value = current_matrix[current_row];
134 current_matrix[current_row] = 0;
136 for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
137 pin_t pin = direct_pins[current_row][col_index];
139 current_matrix[current_row] |= readPin(pin) ? 0 : (ROW_SHIFTER << col_index);
143 return (last_row_value != current_matrix[current_row]);
146 #elif (DIODE_DIRECTION == COL2ROW)
148 static void select_row(uint8_t row) {
149 setPinOutput(row_pins[row]);
150 writePinLow(row_pins[row]);
153 static void unselect_row(uint8_t row) { setPinInputHigh(row_pins[row]); }
155 static void unselect_rows(void) {
156 for (uint8_t x = 0; x < ROWS_PER_HAND; x++) {
157 setPinInputHigh(row_pins[x]);
161 static void init_pins(void) {
163 for (uint8_t x = 0; x < MATRIX_COLS; x++) {
164 setPinInputHigh(col_pins[x]);
168 static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
169 // Store last value of row prior to reading
170 matrix_row_t last_row_value = current_matrix[current_row];
172 // Clear data in matrix row
173 current_matrix[current_row] = 0;
175 // Select row and wait for row selecton to stabilize
176 select_row(current_row);
180 for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
181 // Populate the matrix row with the state of the col pin
182 current_matrix[current_row] |= readPin(col_pins[col_index]) ? 0 : (ROW_SHIFTER << col_index);
186 unselect_row(current_row);
188 return (last_row_value != current_matrix[current_row]);
191 #elif (DIODE_DIRECTION == ROW2COL)
193 static void select_col(uint8_t col) {
194 setPinOutput(col_pins[col]);
195 writePinLow(col_pins[col]);
198 static void unselect_col(uint8_t col) { setPinInputHigh(col_pins[col]); }
200 static void unselect_cols(void) {
201 for (uint8_t x = 0; x < MATRIX_COLS; x++) {
202 setPinInputHigh(col_pins[x]);
206 static void init_pins(void) {
208 for (uint8_t x = 0; x < ROWS_PER_HAND; x++) {
209 setPinInputHigh(row_pins[x]);
213 static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) {
214 bool matrix_changed = false;
216 // Select col and wait for col selecton to stabilize
217 select_col(current_col);
221 for (uint8_t row_index = 0; row_index < ROWS_PER_HAND; row_index++) {
222 // Store last value of row prior to reading
223 matrix_row_t last_row_value = current_matrix[row_index];
225 // Check row pin state
226 if (readPin(row_pins[row_index])) {
227 // Pin HI, clear col bit
228 current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
230 // Pin LO, set col bit
231 current_matrix[row_index] |= (ROW_SHIFTER << current_col);
234 // Determine if the matrix changed state
235 if ((last_row_value != current_matrix[row_index]) && !(matrix_changed)) {
236 matrix_changed = true;
241 unselect_col(current_col);
243 return matrix_changed;
248 void matrix_init(void) {
253 // Set pinout for right half if pinout for that half is defined
255 #ifdef MATRIX_ROW_PINS_RIGHT
256 const uint8_t row_pins_right[MATRIX_ROWS] = MATRIX_ROW_PINS_RIGHT;
257 for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
258 row_pins[i] = row_pins_right[i];
261 #ifdef MATRIX_COL_PINS_RIGHT
262 const uint8_t col_pins_right[MATRIX_COLS] = MATRIX_COL_PINS_RIGHT;
263 for (uint8_t i = 0; i < MATRIX_COLS; i++) {
264 col_pins[i] = col_pins_right[i];
269 thisHand = isLeftHand ? 0 : (ROWS_PER_HAND);
270 thatHand = ROWS_PER_HAND - thisHand;
272 // initialize key pins
275 // initialize matrix state: all keys off
276 for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
280 debounce_init(ROWS_PER_HAND);
282 matrix_init_quantum();
285 uint8_t _matrix_scan(void) {
286 bool changed = false;
288 #if defined(DIRECT_PINS) || (DIODE_DIRECTION == COL2ROW)
289 // Set row, read cols
290 for (uint8_t current_row = 0; current_row < ROWS_PER_HAND; current_row++) {
291 changed |= read_cols_on_row(raw_matrix, current_row);
293 #elif (DIODE_DIRECTION == ROW2COL)
294 // Set col, read rows
295 for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
296 changed |= read_rows_on_col(raw_matrix, current_col);
300 debounce(raw_matrix, matrix + thisHand, ROWS_PER_HAND, changed);
302 return (uint8_t)changed;
305 uint8_t matrix_scan(void) {
306 uint8_t ret = _matrix_scan();
308 if (is_keyboard_master()) {
309 static uint8_t error_count;
311 if (!transport_master(matrix + thatHand)) {
314 if (error_count > ERROR_DISCONNECT_COUNT) {
315 // reset other half if disconnected
316 for (int i = 0; i < ROWS_PER_HAND; ++i) {
317 matrix[thatHand + i] = 0;
324 matrix_scan_quantum();
326 transport_slave(matrix + thisHand);
327 #ifdef ENCODER_ENABLE
330 matrix_slave_scan_user();