|
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245 |
- /*
- Copyright 2011 Jun Wako <[email protected]>
- Copyright 2016 Ethan Apodaca <[email protected]>
-
- 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)
-
- // matrix positions for exceptional keys
- #define PRINT_SCREEN (0x7C)
- #define PAUSE (0x7D)
-
-
- 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;
-
- return;
- }
-
- static uint8_t move_codes(uint8_t code) {
- switch(code) {
- case 0x10:
- code += 0x5E;
- break;
- case 0x19:
- code += 0x41;
- break;
- case 0x1C:
- case 0x1D:
- code += 0x38;
- break;
- case 0x20:
- case 0x21:
- case 0x22:
- case 0x24:
- code += 0x40;
- break;
- case 0x2E:
- case 0x30:
- case 0x32:
- code += 0x44;
- break;
- case 0x35:
- case 0x38:
- code += 0x21;
- break;
- case 0x47:
- case 0x48:
- case 0x49:
- case 0x4B:
- case 0x4D:
- case 0x4F:
- case 0x50:
- case 0x51:
- case 0x52:
- case 0x53:
- code += 0x28;
- break;
- }
- return code;
- }
-
- uint8_t matrix_scan(void)
- {
-
- // scan code reading states
- static enum {
- INIT,
- E0,
- E0_2A,
- E0_2A_E0,
- E0_B7,
- E0_B7_E0,
-
- // print screen
- E1,
- E1_1D,
- E1_1D_45,
- E1_1D_45_E1,
- E1_1D_45_E1_9D,
- // pause
- } state = INIT;
-
-
- // 'pseudo break code' hack
- if (matrix_is_on(ROW(PAUSE), COL(PAUSE))) {
- matrix_break(PAUSE);
- }
-
- uint8_t code = xt_host_recv();
- switch (state) {
- case INIT:
- switch (code) {
- case 0xE0:
- state = E0;
- break;
- case 0xE1:
- state = E1;
- break;
- default: // normal key make
- if (code < 0x80 && code != 0x00) {
- xprintf("make: %X\r\n", code);
- matrix_make(code);
- } else if (code > 0x80 && code < 0xFF && code != 0x00) {
- xprintf("break %X\r\n", code);
- matrix_break(code - 0x80);
- }
- state = INIT;
- }
- break;
- case E0: // E0-Prefixed
- switch (code) { //move these codes to unused places on the matrix
- case 0x2A:
- state = E0_2A;
- break;
- case 0xB7:
- state = E0_B7;
- break;
- default:
- if (code < 0x80 && code != 0x00) {
- matrix_make(move_codes(code));
- } else if (code > 0x80 && code < 0xFF && code != 0x00) {
- matrix_break(move_codes(code - 0x80));
- }
- state = INIT;
- }
- break;
- case E0_2A:
- if(code == 0xE0)
- state = E0_2A_E0;
- else
- state = INIT;
- break;
- case E0_2A_E0:
- if(code == 0x37)
- matrix_make(PRINT_SCREEN);
- else
- state = INIT;
- break;
- case E0_B7:
- if(code == 0xE0)
- state = E0_B7;
- else
- state = INIT;
- break;
- case E0_B7_E0:
- if(code == 0xAA)
- matrix_break(PRINT_SCREEN);
- else
- state = INIT;
- break;
- case E1:
- if (code == 0x1D)
- state = E1_1D;
- else
- state = INIT;
- break;
- case E1_1D:
- if(code == 0x45)
- state = E1_1D_45;
- else
- state = INIT;
- break;
- case E1_1D_45:
- if(code == 0xE1)
- state = E1_1D_45_E1;
- else
- state = INIT;
- break;
- case E1_1D_45_E1:
- if(code == 0x9D)
- state = E1_1D_45_E1_9D;
- else
- state = INIT;
- break;
- case E1_1D_45_E1_9D:
- if(code == 0xC5)
- matrix_make(PAUSE);
- else
- state = INIT;
- break;
- default:
- state = INIT;
- }
- 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;
- }
|