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Diffstat (limited to 'converter/terminal_usb/matrix.c')
| -rw-r--r-- | converter/terminal_usb/matrix.c | 262 |
1 files changed, 0 insertions, 262 deletions
diff --git a/converter/terminal_usb/matrix.c b/converter/terminal_usb/matrix.c deleted file mode 100644 index 36901536f1..0000000000 --- a/converter/terminal_usb/matrix.c +++ /dev/null @@ -1,262 +0,0 @@ -/* -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; - } -} |