133 lines
3.3 KiB
C
133 lines
3.3 KiB
C
/*
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Copyright 2011 Jun Wako <wakojun@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <stdbool.h>
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#include "usb_hid.h"
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#include "usb_keycodes.h"
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#include "util.h"
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#include "print.h"
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#include "debug.h"
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#include "matrix.h"
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/* KEY CODE to Matrix
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*
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* HID keycode(1 byte):
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* Higher 5 bits indicates ROW and lower 3 bits COL.
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*
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* 7 6 5 4 3 2 1 0
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* +---------------+
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* | ROW | COL |
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* +---------------+
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*
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* Matrix space(32 * 8):
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* 01234567
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* 0 +--------+
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* : | |
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* : | |
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* 31 +--------+
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*/
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#define ROW_MASK 0xF8
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#define COL_MASK 0x07
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#define CODE(row, col) (((row) << 3) | (col))
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#define ROW(code) (((code) & ROW_MASK) >> 3)
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#define COL(code) ((code) & COL_MASK)
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#define ROW_BITS(code) (1 << COL(code))
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uint8_t matrix_rows(void) { return MATRIX_ROWS; }
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uint8_t matrix_cols(void) { return MATRIX_COLS; }
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void matrix_init(void) {}
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bool matrix_has_ghost(void) { return false; }
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static bool matrix_is_mod =false;
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uint8_t matrix_scan(void) {
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static uint16_t last_time_stamp = 0;
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if (last_time_stamp != usb_hid_time_stamp) {
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last_time_stamp = usb_hid_time_stamp;
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matrix_is_mod = true;
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} else {
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matrix_is_mod = false;
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}
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return 1;
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}
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bool matrix_is_modified(void) {
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return matrix_is_mod;
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}
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bool matrix_is_on(uint8_t row, uint8_t col) {
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uint8_t code = CODE(row, col);
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if (IS_MOD(code)) {
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if (usb_hid_keyboard_report.mods & ROW_BITS(code)) {
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return true;
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}
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}
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for (uint8_t i = 0; i < REPORT_KEYS; i++) {
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if (usb_hid_keyboard_report.keys[i] == code) {
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return true;
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}
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}
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return false;
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}
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uint8_t matrix_get_row(uint8_t row) {
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uint8_t row_bits = 0;
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if (IS_MOD(CODE(row, 0)) && usb_hid_keyboard_report.mods) {
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row_bits |= usb_hid_keyboard_report.mods;
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}
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for (uint8_t i = 0; i < REPORT_KEYS; i++) {
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if (IS_ANY(usb_hid_keyboard_report.keys[i])) {
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if (row == ROW(usb_hid_keyboard_report.keys[i])) {
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row_bits |= ROW_BITS(usb_hid_keyboard_report.keys[i]);
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}
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}
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}
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return row_bits;
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}
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uint8_t matrix_key_count(void) {
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uint8_t count = 0;
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count += bitpop(usb_hid_keyboard_report.mods);
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for (uint8_t i = 0; i < REPORT_KEYS; i++) {
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if (IS_ANY(usb_hid_keyboard_report.keys[i])) {
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count++;
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}
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}
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return count;
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}
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void matrix_print(void) {
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print("\nr/c 01234567\n");
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for (uint8_t row = 0; row < matrix_rows(); row++) {
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phex(row); print(": ");
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pbin_reverse(matrix_get_row(row));
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#ifdef MATRIX_HAS_GHOST
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if (matrix_has_ghost_in_row(row)) {
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print(" <ghost");
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}
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#endif
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print("\n");
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}
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}
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