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185 lines
3.9 KiB
185 lines
3.9 KiB
/*
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Copyright 2012 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 "matrix.h"
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#include "host.h"
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#include "led.h"
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#include "debug.h"
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#include "wait.h"
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#include "uart.h"
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/*
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* Matrix Array usage:
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*
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* ROW: 16(4bits)
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* COL: 8(3bits)
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*
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* 8bit wide
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* +---------+
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* 0|00 ... 07|
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* 1|08 ... 0F|
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* :| ... |
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* :| ... |
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* E|70 ... 77|
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* F|78 ... 7F|
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* +---------+
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*/
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static uint8_t matrix[MATRIX_ROWS];
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#define ROW(code) ((code>>3)&0xF)
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#define COL(code) (code&0x07)
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__attribute__ ((weak))
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void matrix_init_kb(void) {
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matrix_init_user();
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}
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__attribute__ ((weak))
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void matrix_scan_kb(void) {
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matrix_scan_user();
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}
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__attribute__ ((weak))
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void matrix_init_user(void) {
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}
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__attribute__ ((weak))
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void matrix_scan_user(void) {
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}
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inline
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uint8_t matrix_rows(void)
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{
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return MATRIX_ROWS;
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}
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inline
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uint8_t matrix_cols(void)
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{
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return MATRIX_COLS;
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}
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void matrix_init(void)
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{
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/* DDRD |= (1<<6); */
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/* PORTD |= (1<<6); */
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debug_enable = true;
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uart_init(1200);
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// initialize matrix state: all keys off
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for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
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/* // wait for keyboard coming up */
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/* // otherwise LED status update fails */
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/* print("Reseting "); */
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/* while (1) { */
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/* print("."); */
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/* while (uart_read()); */
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/* uart_write(0x01); */
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/* wait_ms(500); */
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/* if (uart_read() == 0xFF) { */
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/* wait_ms(500); */
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/* if (uart_read() == 0x04) */
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/* break; */
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/* } */
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/* } */
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/* print(" Done\n"); */
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/* PORTD &= ~(1<<6); */
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matrix_init_kb();
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return;
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}
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uint8_t matrix_scan(void)
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{
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uint8_t code;
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code = uart_read();
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if (!code) return 0;
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debug_hex(code); debug(" ");
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switch (code) {
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case 0xFF: // reset success: FF 04
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print("reset: ");
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wait_ms(500);
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code = uart_read();
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xprintf("%02X\n", code);
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if (code == 0x04) {
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// LED status
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led_set(host_keyboard_leds());
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}
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return 0;
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case 0xFE: // layout: FE <layout>
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print("layout: ");
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wait_ms(500);
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xprintf("%02X\n", uart_read());
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return 0;
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case 0x7E: // reset fail: 7E 01
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print("reset fail: ");
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wait_ms(500);
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xprintf("%02X\n", uart_read());
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return 0;
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case 0x7F:
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// all keys up
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for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
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return 0;
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}
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if (code&0x80) {
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// break code
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if (matrix_is_on(ROW(code), COL(code))) {
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matrix[ROW(code)] &= ~(1<<COL(code));
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}
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} else {
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// make code
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if (!matrix_is_on(ROW(code), COL(code))) {
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matrix[ROW(code)] |= (1<<COL(code));
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}
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}
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matrix_scan_kb();
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return code;
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}
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inline
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bool matrix_has_ghost(void)
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{
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return false;
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}
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inline
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bool matrix_is_on(uint8_t row, uint8_t col)
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{
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return (matrix[row] & (1<<col));
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}
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inline
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uint8_t matrix_get_row(uint8_t row)
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{
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return matrix[row];
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}
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void matrix_print(void)
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{
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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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print_hex8(row); print(": ");
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print_bin_reverse8(matrix_get_row(row));
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print("\n");
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}
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}
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