qmk_firmware/quantum/matrix.c

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/*
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Copyright 2012 Jun Wako
Copyright 2014 Jack Humbert
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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/>.
*/
#include <stdint.h>
#include <stdbool.h>
#include <avr/io.h>
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#include "wait.h"
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#include "print.h"
#include "debug.h"
#include "util.h"
#include "matrix.h"
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#ifdef MATRIX_HAS_GHOST
# error "The universal matrix.c file cannot be used for this keyboard."
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#endif
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#ifndef DEBOUNCING_DELAY
# define DEBOUNCING_DELAY 5
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#endif
static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
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/* matrix state */
#if DIODE_DIRECTION == COL2ROW
static matrix_row_t matrix[MATRIX_ROWS];
#else
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static matrix_col_t matrix[MATRIX_COLS];
#endif
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static int8_t debouncing_delay = -1;
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#if DIODE_DIRECTION == COL2ROW
static void toggle_row(uint8_t row);
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static matrix_row_t read_cols(void);
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#else
static void toggle_col(uint8_t col);
static matrix_col_t read_rows(void);
#endif
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__attribute__ ((weak))
void matrix_init_quantum(void) {
matrix_init_kb();
}
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__attribute__ ((weak))
void matrix_scan_quantum(void) {
matrix_scan_kb();
}
__attribute__ ((weak))
void matrix_init_kb(void) {
matrix_init_user();
}
__attribute__ ((weak))
void matrix_scan_kb(void) {
matrix_scan_user();
}
__attribute__ ((weak))
void matrix_init_user(void) {
}
__attribute__ ((weak))
void matrix_scan_user(void) {
}
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uint8_t matrix_rows(void) {
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return MATRIX_ROWS;
}
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uint8_t matrix_cols(void) {
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return MATRIX_COLS;
}
Implements subprojects and updates projects for this (#459) * non-working commit * working * subprojects implemented for planck * pass a subproject variable through to c * consolidates clueboard revisions * thanks for letting me know about conflicts.. * turn off audio for yang's * corrects starting paths for subprojects * messing around with travis * semicolon * travis script * travis script * script for travis * correct directory (probably), amend files to commit * remove origin before adding * git pull, correct syntax * git checkout * git pull origin branch * where are we? * where are we? * merging * force things to happen * adds commit message, adds add * rebase, no commit message * rebase branch * idk! * try just pull * fetch - merge * specify repo branch * checkout * goddammit * merge? idk * pls * after all * don't split up keyboards * syntax * adds quick for all-keyboards * trying out new script * script update * lowercase * all keyboards * stop replacing compiled.hex automatically * adds if statement * skip automated build branches * forces push to automated build branch * throw an add in there * upstream? * adds AUTOGEN * ignore all .hex files again * testing out new repo * global ident * generate script, keyboard_keymap.hex * skip generation for now, print pandoc info, submodule update * try trusty * and sudo * try generate * updates subprojects to keyboards * no idea * updates to keyboards * cleans up clueboard stuff * setup to use local readme * updates cluepad, planck experimental * remove extra led.c [ci skip] * disable power up for now * config files updates * makefile updates * .h file updates, config tuning * disable audio for yang
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// void matrix_power_up(void) {
// #if DIODE_DIRECTION == COL2ROW
// for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
// /* DDRxn */
// _SFR_IO8((row_pins[r] >> 4) + 1) |= _BV(row_pins[r] & 0xF);
// toggle_row(r);
// }
// for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
// /* PORTxn */
// _SFR_IO8((col_pins[c] >> 4) + 2) |= _BV(col_pins[c] & 0xF);
// }
// #else
// for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
// /* DDRxn */
// _SFR_IO8((col_pins[c] >> 4) + 1) |= _BV(col_pins[c] & 0xF);
// toggle_col(c);
// }
// for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
// /* PORTxn */
// _SFR_IO8((row_pins[r] >> 4) + 2) |= _BV(row_pins[r] & 0xF);
// }
// #endif
// }
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void matrix_init(void) {
/* frees PORTF by setting the JTD bit twice within four cycles */
#ifdef __AVR_ATmega32U4__
MCUCR |= _BV(JTD);
MCUCR |= _BV(JTD);
#endif
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/* initializes the I/O pins */
#if DIODE_DIRECTION == COL2ROW
for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
/* DDRxn */
_SFR_IO8((row_pins[r] >> 4) + 1) |= _BV(row_pins[r] & 0xF);
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toggle_row(r);
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}
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for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
/* PORTxn */
_SFR_IO8((col_pins[c] >> 4) + 2) |= _BV(col_pins[c] & 0xF);
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}
#else
for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
/* DDRxn */
_SFR_IO8((col_pins[c] >> 4) + 1) |= _BV(col_pins[c] & 0xF);
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toggle_col(c);
}
for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
/* PORTxn */
_SFR_IO8((row_pins[r] >> 4) + 2) |= _BV(row_pins[r] & 0xF);
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}
#endif
matrix_init_quantum();
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}
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#if DIODE_DIRECTION == COL2ROW
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uint8_t matrix_scan(void) {
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static matrix_row_t debouncing_matrix[MATRIX_ROWS];
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for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
toggle_row(r);
matrix_row_t state = read_cols();
if (debouncing_matrix[r] != state) {
debouncing_matrix[r] = state;
debouncing_delay = DEBOUNCING_DELAY;
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}
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toggle_row(r);
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}
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if (debouncing_delay >= 0) {
dprintf("Debouncing delay remaining: %X\n", debouncing_delay);
--debouncing_delay;
if (debouncing_delay >= 0) {
wait_ms(1);
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}
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else {
for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
matrix[r] = debouncing_matrix[r];
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}
}
}
matrix_scan_quantum();
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return 1;
}
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static void toggle_row(uint8_t row) {
/* PINxn */
_SFR_IO8((row_pins[row] >> 4)) = _BV(row_pins[row] & 0xF);
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}
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static matrix_row_t read_cols(void) {
matrix_row_t state = 0;
for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
/* PINxn */
if (!(_SFR_IO8((col_pins[c] >> 4)) & _BV(col_pins[c] & 0xF))) {
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state |= (matrix_row_t)1 << c;
}
}
return state;
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}
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matrix_row_t matrix_get_row(uint8_t row) {
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return matrix[row];
}
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#else
uint8_t matrix_scan(void) {
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static matrix_col_t debouncing_matrix[MATRIX_COLS];
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for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
toggle_col(c);
matrix_col_t state = read_rows();
if (debouncing_matrix[c] != state) {
debouncing_matrix[c] = state;
debouncing_delay = DEBOUNCING_DELAY;
}
toggle_col(c);
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}
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if (debouncing_delay >= 0) {
dprintf("Debouncing delay remaining: %X\n", debouncing_delay);
--debouncing_delay;
if (debouncing_delay >= 0) {
wait_ms(1);
}
else {
for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
matrix[c] = debouncing_matrix[c];
}
}
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}
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matrix_scan_quantum();
return 1;
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}
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static void toggle_col(uint8_t col) {
/* PINxn */
_SFR_IO8((col_pins[col] >> 4)) = _BV(col_pins[col] & 0xF);
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}
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static matrix_col_t read_rows(void) {
matrix_col_t state = 0;
for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
/* PINxn */
if (!(_SFR_IO8((row_pins[r] >> 4)) & _BV(row_pins[r] & 0xF))) {
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state |= (matrix_col_t)1 << r;
}
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}
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return state;
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}
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matrix_row_t matrix_get_row(uint8_t row) {
matrix_row_t state = 0;
matrix_col_t mask = (matrix_col_t)1 << row;
for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
if (matrix[c] & mask) {
state |= (matrix_row_t)1 << c;
}
}
return state;
}
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#endif
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bool matrix_is_modified(void) {
if (debouncing_delay >= 0) return false;
return true;
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}
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bool matrix_is_on(uint8_t row, uint8_t col) {
return matrix_get_row(row) & (matrix_row_t)1 << col;
}
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void matrix_print(void) {
dprintln("Human-readable matrix state:");
for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
dprintf("State of row %X: %016b\n", r, bitrev16(matrix_get_row(r)));
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}
}
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uint8_t matrix_key_count(void) {
uint8_t count = 0;
for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
count += bitpop16(matrix_get_row(r));
}
return count;
}