2 Copyright 2011 Jun Wako <wakojun@gmail.com>
3 Copyright 2016 Ethan Apodaca <papodaca@gmail.com>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
29 static void matrix_make(uint8_t code);
30 static void matrix_break(uint8_t code);
32 static uint8_t matrix[MATRIX_ROWS];
33 #define ROW(code) (code>>3)
34 #define COL(code) (code&0x07)
37 void matrix_init(void)
42 // initialize matrix state: all keys off
43 for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
48 // convert E0-escaped codes into unused area
49 static uint8_t move_e0code(uint8_t code) {
51 // Original IBM XT keyboard has these keys
52 case 0x37: return 0x54; // Print Screen
53 case 0x46: return 0x55; // Ctrl + Pause
54 case 0x1C: return 0x6F; // Keypad Enter
55 case 0x35: return 0x7F; // Keypad /
57 // Any XT keyobard with these keys?
58 // http://download.microsoft.com/download/1/6/1/161ba512-40e2-4cc9-843a-923143f3456c/translate.pdf
59 // https://download.microsoft.com/download/1/6/1/161ba512-40e2-4cc9-843a-923143f3456c/scancode.doc
60 case 0x5B: return 0x5A; // Left GUI
61 case 0x5C: return 0x5B; // Right GUI
62 case 0x5D: return 0x5C; // Application
63 case 0x5E: return 0x5D; // Power(not used)
64 case 0x5F: return 0x5E; // Sleep(not used)
65 case 0x63: return 0x5F; // Wake (not used)
66 case 0x48: return 0x60; // Up
67 case 0x4B: return 0x61; // Left
68 case 0x50: return 0x62; // Down
69 case 0x4D: return 0x63; // Right
70 case 0x52: return 0x71; // Insert
71 case 0x53: return 0x72; // Delete
72 case 0x47: return 0x74; // Home
73 case 0x4F: return 0x75; // End
74 case 0x49: return 0x77; // Home
75 case 0x51: return 0x78; // End
76 case 0x1D: return 0x7A; // Right Ctrl
77 case 0x38: return 0x7C; // Right Alt
82 uint8_t matrix_scan(void)
87 // Pause: E1 1D 45, E1 9D C5
93 uint8_t code = xt_host_recv();
95 xprintf("%02X ", code);
109 matrix_break(code & 0x7F);
124 matrix_make(move_e0code(code));
126 matrix_break(move_e0code(code & 0x7F));
171 uint8_t matrix_get_row(uint8_t row)
177 static void matrix_make(uint8_t code)
179 if (!matrix_is_on(ROW(code), COL(code))) {
180 matrix[ROW(code)] |= 1<<COL(code);
185 static void matrix_break(uint8_t code)
187 if (matrix_is_on(ROW(code), COL(code))) {
188 matrix[ROW(code)] &= ~(1<<COL(code));
192 void matrix_clear(void)
194 for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
200 - http://download.microsoft.com/download/1/6/1/161ba512-40e2-4cc9-843a-923143f3456c/translate.pdf
201 - https://download.microsoft.com/download/1/6/1/161ba512-40e2-4cc9-843a-923143f3456c/scancode.doc
203 01-53: Normal codes used in original XT keyboard
204 54-7F: Not used in original XT keyboard
206 0 1 2 3 4 5 6 7 8 9 A B C D E F
207 50 - - - - * * x x x x * * * * * *
208 60 * * * * x x x x x x x x x x x *
209 70 x * * x * * x * * x * x * x x *
211 -: codes existed in original XT keyboard
212 *: E0-escaped codes converted into unused code area(internal use in TMK)
213 x: Non-espcaped codes(not used in real keyboards probably, for CodeSet2-CodeSet1 translation purpose)