+++ /dev/null
-/*
-Copyright 2011 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 "debug.h"
-#include "ps2.h"
-#include "matrix.h"
-
-
-static void matrix_make(uint8_t code);
-static void matrix_break(uint8_t code);
-#ifdef MATRIX_HAS_GHOST
-static bool matrix_has_ghost_in_row(uint8_t row);
-#endif
-
-
-/*
- * Matrix Array usage:
- * 'Scan Code Set 3' is assigned into 17x8 cell matrix.
- *
- * 8bit wide
- * +---------+
- * 0| |
- * :| | 0x00-0x87
- * ;| |
- * 17| |
- * +---------+
- */
-static uint8_t matrix[MATRIX_ROWS];
-#define ROW(code) (code>>3)
-#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)
-{
- debug_enable = true;
- //debug_matrix = true;
- //debug_keyboard = true;
- //debug_mouse = false;
-
- ps2_host_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)
-{
-
- // scan code reading states
- static enum {
- RESET,
- RESET_RESPONSE,
- KBD_ID0,
- KBD_ID1,
- CONFIG,
- READY,
- F0,
- } state = RESET;
-
- is_modified = false;
-
- uint8_t code;
- if ((code = ps2_host_recv())) {
- debug("r"); debug_hex(code); debug(" ");
- }
-
- switch (state) {
- case RESET:
- debug("wFF ");
- if (ps2_host_send(0xFF) == 0xFA) {
- debug("[ack]\nRESET_RESPONSE: ");
- state = RESET_RESPONSE;
- }
- break;
- case RESET_RESPONSE:
- if (code == 0xAA) {
- debug("[ok]\nKBD_ID: ");
- state = KBD_ID0;
- } else if (code) {
- debug("err\nRESET: ");
- state = RESET;
- }
- break;
- // after reset receive keyboad ID(2 bytes)
- case KBD_ID0:
- if (code) {
- state = KBD_ID1;
- }
- break;
- case KBD_ID1:
- if (code) {
- debug("\nCONFIG: ");
- state = CONFIG;
- }
- break;
- case CONFIG:
- debug("wF8 ");
- if (ps2_host_send(0xF8) == 0xFA) {
- debug("[ack]\nREADY\n");
- state = READY;
- }
- break;
- case READY:
- switch (code) {
- case 0x00:
- break;
- case 0xF0:
- state = F0;
- debug(" ");
- break;
- default: // normal key make
- if (code < 0x88) {
- matrix_make(code);
- } else {
- debug("unexpected scan code at READY: "); debug_hex(code); debug("\n");
- }
- state = READY;
- debug("\n");
- }
- break;
- case F0: // Break code
- switch (code) {
- case 0x00:
- break;
- default:
- if (code < 0x88) {
- matrix_break(code);
- } else {
- debug("unexpected scan code at F0: "); debug_hex(code); debug("\n");
- }
- state = READY;
- debug("\n");
- }
- break;
- }
- return 1;
-}
-
-bool matrix_is_modified(void)
-{
- return is_modified;
-}
-
-inline
-bool matrix_has_ghost(void)
-{
-#ifdef MATRIX_HAS_GHOST
- for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
- if (matrix_has_ghost_in_row(i))
- return true;
- }
-#endif
- 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));
-#ifdef MATRIX_HAS_GHOST
- if (matrix_has_ghost_in_row(row)) {
- print(" <ghost");
- }
-#endif
- 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;
-}
-
-#ifdef MATRIX_HAS_GHOST
-inline
-static bool matrix_has_ghost_in_row(uint8_t row)
-{
- // no ghost exists in case less than 2 keys on
- if (((matrix[row] - 1) & matrix[row]) == 0)
- return false;
-
- // ghost exists in case same state as other row
- for (uint8_t i=0; i < MATRIX_ROWS; i++) {
- if (i != row && (matrix[i] & matrix[row]) == matrix[row])
- return true;
- }
- return false;
-}
-#endif
-
-
-inline
-static void matrix_make(uint8_t code)
-{
- if (!matrix_is_on(ROW(code), COL(code))) {
- matrix[ROW(code)] |= 1<<COL(code);
- is_modified = true;
- }
-}
-
-inline
-static void matrix_break(uint8_t code)
-{
- if (matrix_is_on(ROW(code), COL(code))) {
- matrix[ROW(code)] &= ~(1<<COL(code));
- is_modified = true;
- }
-}
projects / qmk_firmware.git / blobdiff