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/*
Copyright 2011 Jun Wako <wakojun@gmail.com>
Copyright 2016 Ethan Apodaca <papodaca@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 "action.h"
#include "print.h"
#include "util.h"
#include "debug.h"
#include "xt.h"
#include "matrix.h"
static void matrix_make(uint8_t code);
static void matrix_break(uint8_t code);
static uint8_t matrix[MATRIX_ROWS];
#define ROW(code) (code >> 3)
#define COL(code) (code & 0x07)
__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) { }
void matrix_init(void) {
debug_enable = true;
xt_host_init();
// initialize matrix state: all keys off
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix[i] = 0x00;
}
matrix_init_kb();
}
// convert E0-escaped codes into unused area
static uint8_t move_e0code(uint8_t code) {
switch(code) {
// Original IBM XT keyboard has these keys
case 0x37: return 0x54; // Print Screen
case 0x46: return 0x55; // Ctrl + Pause
case 0x1C: return 0x6F; // Keypad Enter
case 0x35: return 0x7F; // Keypad /
// Any XT keyboard with these keys?
// http://download.microsoft.com/download/1/6/1/161ba512-40e2-4cc9-843a-923143f3456c/translate.pdf
// https://download.microsoft.com/download/1/6/1/161ba512-40e2-4cc9-843a-923143f3456c/scancode.doc
case 0x5B: return 0x5A; // Left GUI
case 0x5C: return 0x5B; // Right GUI
case 0x5D: return 0x5C; // Application
case 0x5E: return 0x5D; // Power(not used)
case 0x5F: return 0x5E; // Sleep(not used)
case 0x63: return 0x5F; // Wake (not used)
case 0x48: return 0x60; // Up
case 0x4B: return 0x61; // Left
case 0x50: return 0x62; // Down
case 0x4D: return 0x63; // Right
case 0x52: return 0x71; // Insert
case 0x53: return 0x72; // Delete
case 0x47: return 0x74; // Home
case 0x4F: return 0x75; // End
case 0x49: return 0x77; // Home
case 0x51: return 0x78; // End
case 0x1D: return 0x7A; // Right Ctrl
case 0x38: return 0x7C; // Right Alt
}
return 0x00;
}
uint8_t matrix_scan(void) {
static enum {
XT_STATE_INIT,
XT_STATE_E0,
// Pause: E1 1D 45, E1 9D C5
XT_STATE_E1,
XT_STATE_E1_1D,
XT_STATE_E1_9D,
} state = XT_STATE_INIT;
uint8_t code = xt_host_recv();
if (!code) {
return 0;
}
xprintf("%02X ", code);
switch (state) {
case XT_STATE_INIT:
switch (code) {
case 0xE0:
state = XT_STATE_E0;
break;
case 0xE1:
state = XT_STATE_E1;
break;
default:
if (code < 0x80) {
matrix_make(code);
} else {
matrix_break(code & 0x7F);
}
break;
}
break;
case XT_STATE_E0:
switch (code) {
case 0x2A:
case 0xAA:
case 0x36:
case 0xB6:
//ignore fake shift
state = XT_STATE_INIT;
break;
default:
if (code < 0x80) {
matrix_make(move_e0code(code));
} else {
matrix_break(move_e0code(code & 0x7F));
}
state = XT_STATE_INIT;
break;
}
break;
case XT_STATE_E1:
switch (code) {
case 0x1D:
state = XT_STATE_E1_1D;
break;
case 0x9D:
state = XT_STATE_E1_9D;
break;
default:
state = XT_STATE_INIT;
break;
}
break;
case XT_STATE_E1_1D:
switch (code) {
case 0x45:
matrix_make(0x55);
break;
default:
state = XT_STATE_INIT;
break;
}
break;
case XT_STATE_E1_9D:
switch (code) {
case 0x45:
matrix_break(0x55);
break;
default:
state = XT_STATE_INIT;
break;
}
break;
default:
state = XT_STATE_INIT;
}
matrix_scan_kb();
return 1;
}
inline
uint8_t matrix_get_row(uint8_t row) {
return matrix[row];
}
inline static void matrix_make(uint8_t code) {
if (!matrix_is_on(ROW(code), COL(code))) {
matrix[ROW(code)] |= 1 << COL(code);
}
}
inline static void matrix_break(uint8_t code) {
if (matrix_is_on(ROW(code), COL(code))) {
matrix[ROW(code)] &= ~(1 << COL(code));
}
}
void matrix_clear(void) {
for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
}
bool matrix_is_on(uint8_t row, uint8_t col) {
return (matrix_get_row(row) & (1 << col));
}
#if (MATRIX_COLS <= 8)
# define print_matrix_header() print("\nr/c 01234567\n")
# define print_matrix_row(row) print_bin_reverse8(matrix_get_row(row))
#elif (MATRIX_COLS <= 16)
# define print_matrix_header() print("\nr/c 0123456789ABCDEF\n")
# define print_matrix_row(row) print_bin_reverse16(matrix_get_row(row))
#elif (MATRIX_COLS <= 32)
# define print_matrix_header() print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
# define print_matrix_row(row) print_bin_reverse32(matrix_get_row(row))
#endif
void matrix_print(void) {
print_matrix_header();
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
print_hex8(row);
print(": ");
print_matrix_row(row);
print("\n");
}
}
/*
XT Scancodes
============
- http://download.microsoft.com/download/1/6/1/161ba512-40e2-4cc9-843a-923143f3456c/translate.pdf
- https://download.microsoft.com/download/1/6/1/161ba512-40e2-4cc9-843a-923143f3456c/scancode.doc
01-53: Normal codes used in original XT keyboard
54-7F: Not used in original XT keyboard
0 1 2 3 4 5 6 7 8 9 A B C D E F
50 - - - - * * x x x x * * * o o o
60 * * * * x x x x x x x x x x x *
70 x * * x * * x * * x * x * x x *
-: codes existed in original XT keyboard
*: E0-escaped codes converted into unused code area(internal use in TMK)
x: Non-espcaped codes(not used in real keyboards probably, for CodeSet2-CodeSet1 translation purpose)
o: reserved
Usage in TMK:
00 (reserved) DO NOT USE
54 PrintScr*
55 Pause*
56 Euro2
57 F11
58 F12
59 Keypad =
5A LGUI*
5B RGUI*
5C APP*
5D (reserved)
5E (reserved)
5F (reserved)
60 cursor*
61 cursor*
62 cursor*
63 cursor*
64 F13
65 F14
66 F15
67 F16
68 F17
69 F18
6A F19
6B F20
6C F21
6D F22
6E F23
6F Keypad Enter*
70 KANA
71 nav*
72 nav*
73 RO
74 nav*
75 nav*
76 F24
77 nav*
78 nav*
79 HENKAN
7A RCTL*
7B MUHENKAN
7C RALT*
7D JPY
7E Keypad ,
7F Keypad / *
*/
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