2 Copyright 2012 Jun Wako
3 Copyright 2014 Jack Humbert
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
29 #if (MATRIX_COLS <= 8)
30 # define print_matrix_header() print("\nr/c 01234567\n")
31 # define print_matrix_row(row) print_bin_reverse8(matrix_get_row(row))
32 # define matrix_bitpop(i) bitpop(matrix[i])
33 # define ROW_SHIFTER ((uint8_t)1)
34 #elif (MATRIX_COLS <= 16)
35 # define print_matrix_header() print("\nr/c 0123456789ABCDEF\n")
36 # define print_matrix_row(row) print_bin_reverse16(matrix_get_row(row))
37 # define matrix_bitpop(i) bitpop16(matrix[i])
38 # define ROW_SHIFTER ((uint16_t)1)
39 #elif (MATRIX_COLS <= 32)
40 # define print_matrix_header() print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
41 # define print_matrix_row(row) print_bin_reverse32(matrix_get_row(row))
42 # define matrix_bitpop(i) bitpop32(matrix[i])
43 # define ROW_SHIFTER ((uint32_t)1)
47 extern const matrix_row_t matrix_mask[];
50 /* Set 0 if debouncing isn't needed */
52 #ifndef DEBOUNCING_DELAY
53 # define DEBOUNCING_DELAY 5
55 static uint8_t debouncing = DEBOUNCING_DELAY;
57 static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
58 static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
60 /* matrix state(1:on, 0:off) */
61 static matrix_row_t matrix[MATRIX_ROWS];
63 static matrix_row_t matrix_raw[MATRIX_ROWS];
66 #if DIODE_DIRECTION == COL2ROW
67 static matrix_row_t matrix_debouncing[MATRIX_ROWS];
69 static matrix_col_t matrix_transposed[MATRIX_COLS];
70 static matrix_col_t matrix_transposed_debouncing[MATRIX_COLS];
73 #if (DIODE_DIRECTION == COL2ROW)
74 static void init_cols(void);
75 static void read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
76 static void unselect_rows(void);
77 static void select_row(uint8_t row);
78 static void unselect_row(uint8_t row);
80 static void init_rows(void);
81 static void read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
82 static void unselect_cols(void);
83 static void unselect_col(uint8_t col);
84 static void select_col(uint8_t col);
87 __attribute__ ((weak))
88 void matrix_init_quantum(void) {
92 __attribute__ ((weak))
93 void matrix_scan_quantum(void) {
97 __attribute__ ((weak))
98 void matrix_init_kb(void) {
102 __attribute__ ((weak))
103 void matrix_scan_kb(void) {
107 __attribute__ ((weak))
108 void matrix_init_user(void) {
111 __attribute__ ((weak))
112 void matrix_scan_user(void) {
116 uint8_t matrix_rows(void) {
121 uint8_t matrix_cols(void) {
125 // void matrix_power_up(void) {
126 // #if (DIODE_DIRECTION == COL2ROW)
127 // for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
129 // _SFR_IO8((row_pins[r] >> 4) + 1) |= _BV(row_pins[r] & 0xF);
132 // for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
134 // _SFR_IO8((col_pins[c] >> 4) + 2) |= _BV(col_pins[c] & 0xF);
137 // for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
139 // _SFR_IO8((col_pins[c] >> 4) + 1) |= _BV(col_pins[c] & 0xF);
142 // for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
144 // _SFR_IO8((row_pins[r] >> 4) + 2) |= _BV(row_pins[r] & 0xF);
149 void matrix_init(void) {
151 // To use PORTF disable JTAG with writing JTD bit twice within four cycles.
152 #if (defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) || defined(__AVR_ATmega32U4__))
157 // initialize row and col
158 #if (DIODE_DIRECTION == COL2ROW)
162 // initialize matrix state: all keys off
163 for (uint8_t i=0; i < MATRIX_ROWS; i++) {
166 matrix_debouncing[i] = 0;
173 // initialize matrix state: all keys off
174 for (uint8_t i=0; i < MATRIX_ROWS; i++) {
179 // initialize matrix state: all keys off
180 for (uint8_t i=0; i < MATRIX_COLS; i++) {
181 matrix_transposed_debouncing[i] = 0;
185 matrix_init_quantum();
188 uint8_t matrix_scan(void)
191 #if (DIODE_DIRECTION == COL2ROW)
193 // Set row, read cols
194 for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
195 read_cols_on_row(matrix, current_row);
199 // wait_us(30); // without this wait read unstable value.
200 // matrix_row_t current_row = read_cols();
201 // if (matrix_debouncing[i] != current_row) {
202 // matrix_debouncing[i] = current_row;
204 // debug("bounce!: "); debug_hex(debouncing); debug("\n");
206 // debouncing = DEBOUNCING_DELAY;
212 // if (--debouncing) {
215 // for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
216 // matrix[i] = matrix_debouncing[i];
223 // Set col, read rows
224 for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
225 read_rows_on_col(matrix, current_col);
229 // for (uint8_t i = 0; i < MATRIX_COLS; i++) {
231 // wait_us(30); // without this wait read unstable value.
232 // matrix_col_t current_col = read_rows();
233 // if (matrix_transposed_debouncing[i] != current_col) {
234 // matrix_transposed_debouncing[i] = current_col;
236 // debug("bounce!: "); debug_hex(debouncing); debug("\n");
238 // debouncing = DEBOUNCING_DELAY;
244 // if (--debouncing) {
247 // for (uint8_t i = 0; i < MATRIX_COLS; i++) {
248 // matrix_transposed[i] = matrix_transposed_debouncing[i];
253 // // Untranspose matrix
254 // for (uint8_t y = 0; y < MATRIX_ROWS; y++) {
255 // matrix_row_t row = 0;
256 // for (uint8_t x = 0; x < MATRIX_COLS; x++) {
257 // row |= ((matrix_transposed[x] & (1<<y)) >> y) << x;
264 matrix_scan_quantum();
269 bool matrix_is_modified(void)
271 if (debouncing) return false;
276 bool matrix_is_on(uint8_t row, uint8_t col)
278 return (matrix[row] & ((matrix_row_t)1<col));
282 matrix_row_t matrix_get_row(uint8_t row)
284 // Matrix mask lets you disable switches in the returned matrix data. For example, if you have a
285 // switch blocker installed and the switch is always pressed.
287 return matrix[row] & matrix_mask[row];
293 void matrix_print(void)
295 print_matrix_header();
297 for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
298 phex(row); print(": ");
299 print_matrix_row(row);
304 uint8_t matrix_key_count(void)
307 for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
308 count += matrix_bitpop(i);
315 #if (DIODE_DIRECTION == COL2ROW)
317 static void init_cols(void)
319 for(uint8_t x = 0; x < MATRIX_COLS; x++) {
320 uint8_t pin = col_pins[x];
321 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
322 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
326 static void read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
328 // Clear data in matrix row
329 current_matrix[current_row] = 0;
331 // Select row and wait for row selecton to stabilize
332 select_row(current_row);
336 for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
338 // Select the col pin to read (active low)
339 uint8_t pin = col_pins[col_index];
340 uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
342 // Populate the matrix row with the state of the col pin
343 current_matrix[current_row] |= pin_state ? 0 : (ROW_SHIFTER << col_index);
347 static void select_row(uint8_t row)
349 uint8_t pin = row_pins[row];
350 _SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT
351 _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
354 static void unselect_row(uint8_t row)
356 uint8_t pin = row_pins[row];
357 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
358 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
361 static void unselect_rows(void)
363 for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
364 uint8_t pin = row_pins[x];
365 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
366 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
372 static void init_rows(void)
374 for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
375 uint8_t pin = row_pins[x];
376 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
377 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
381 static void read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
384 // Select col and wait for col selecton to stabilize
385 select_col(current_col);
389 for(uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++) {
391 // Select the row pin to read (active low)
392 uint8_t pin = row_pins[row_index];
393 uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
395 // Populate the matrix row with the state of the col pin
396 current_matrix[row_index] &= pin_state ? ~(ROW_SHIFTER << current_col) : 0;
400 static void select_col(uint8_t col)
402 uint8_t pin = col_pins[col];
403 _SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT
404 _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
407 static void unselect_col(uint8_t col)
409 uint8_t pin = col_pins[col];
410 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
411 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
414 static void unselect_cols(void)
416 for(uint8_t x = 0; x < MATRIX_COLS; x++) {
417 uint8_t pin = col_pins[x];
418 _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
419 _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI