181 lines
3.3 KiB
C
181 lines
3.3 KiB
C
/*
|
|
Copyright 2012 Jun Wako <wakojun@gmail.com>
|
|
|
|
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>
|
|
#include <util/delay.h>
|
|
#include "print.h"
|
|
#include "util.h"
|
|
#include "serial.h"
|
|
#include "matrix.h"
|
|
#include "debug.h"
|
|
|
|
|
|
/*
|
|
* Matrix Array usage:
|
|
*
|
|
* ROW: 16(4bits)
|
|
* COL: 8(3bits)
|
|
*
|
|
* 8bit wide
|
|
* +---------+
|
|
* 0|00 ... 07|
|
|
* 1|08 ... 0F|
|
|
* :| ... |
|
|
* :| ... |
|
|
* E|70 ... 77|
|
|
* F|78 ... 7F|
|
|
* +---------+
|
|
*
|
|
* Command From System To Keyboard
|
|
* 0x01 Reset
|
|
* 0x02 Bell On
|
|
* 0x03 Bell Off
|
|
* 0x0A Click On
|
|
* 0x0B Click Off
|
|
* 0x0E LED
|
|
* 0x0F Layout
|
|
*
|
|
* Command From Keyboard To System
|
|
* 0x7F Idle
|
|
* 0xFE Layout Response
|
|
* 0xFF Reset Response(followed by 0x04)
|
|
*
|
|
* bit: 3 2 1 0
|
|
* LED: CapsLk ScrLk Compose NumLk
|
|
*
|
|
* Connector
|
|
* 8Pin mini DIN
|
|
* 8 7 6
|
|
* 5 4 3
|
|
* 2 1
|
|
* receptacle
|
|
*
|
|
* 1: GND
|
|
* 2: GND
|
|
* 3: 5V
|
|
* 4: RX/TX(Mouse)
|
|
* 5: RX
|
|
* 6: TX
|
|
* 7: GND
|
|
* 8: 5V
|
|
*/
|
|
static uint8_t matrix[MATRIX_ROWS];
|
|
#define ROW(code) ((code>>3)&0xF)
|
|
#define COL(code) (code&0x07)
|
|
|
|
static bool is_modified = false;
|
|
|
|
|
|
inline
|
|
uint8_t matrix_rows(void)
|
|
{
|
|
return MATRIX_ROWS;
|
|
}
|
|
|
|
inline
|
|
uint8_t matrix_cols(void)
|
|
{
|
|
return MATRIX_COLS;
|
|
}
|
|
|
|
void matrix_init(void)
|
|
{
|
|
print_enable = true;
|
|
debug_enable = true;
|
|
|
|
serial_init();
|
|
|
|
// initialize matrix state: all keys off
|
|
for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
|
|
|
|
return;
|
|
}
|
|
|
|
uint8_t matrix_scan(void)
|
|
{
|
|
is_modified = false;
|
|
|
|
uint8_t code;
|
|
code = serial_recv();
|
|
if (code == 0) {
|
|
return 0;
|
|
}
|
|
|
|
phex(code); print("(");
|
|
code = ~code;
|
|
phex(code); print(")");
|
|
return 0;
|
|
if (code&0x80) {
|
|
// break code
|
|
if (matrix_is_on(ROW(code), COL(code))) {
|
|
matrix[ROW(code)] &= ~(1<<COL(code));
|
|
is_modified = true;
|
|
}
|
|
} else {
|
|
// make code
|
|
if (!matrix_is_on(ROW(code), COL(code))) {
|
|
matrix[ROW(code)] |= (1<<COL(code));
|
|
is_modified = true;
|
|
}
|
|
}
|
|
return code;
|
|
}
|
|
|
|
bool matrix_is_modified(void)
|
|
{
|
|
return is_modified;
|
|
}
|
|
|
|
inline
|
|
bool matrix_has_ghost(void)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
inline
|
|
bool matrix_is_on(uint8_t row, uint8_t col)
|
|
{
|
|
return (matrix[row] & (1<<col));
|
|
}
|
|
|
|
inline
|
|
uint8_t matrix_get_row(uint8_t row)
|
|
{
|
|
return matrix[row];
|
|
}
|
|
|
|
void matrix_print(void)
|
|
{
|
|
print("\nr/c 01234567\n");
|
|
for (uint8_t row = 0; row < matrix_rows(); row++) {
|
|
phex(row); print(": ");
|
|
pbin_reverse(matrix_get_row(row));
|
|
print("\n");
|
|
}
|
|
}
|
|
|
|
uint8_t matrix_key_count(void)
|
|
{
|
|
uint8_t count = 0;
|
|
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
|
|
count += bitpop(matrix[i]);
|
|
}
|
|
return count;
|
|
}
|