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Diffstat (limited to 'converter/adb_usb/matrix.c')
-rw-r--r-- | converter/adb_usb/matrix.c | 296 |
1 files changed, 0 insertions, 296 deletions
diff --git a/converter/adb_usb/matrix.c b/converter/adb_usb/matrix.c deleted file mode 100644 index 6220ee6e1c..0000000000 --- a/converter/adb_usb/matrix.c +++ /dev/null @@ -1,296 +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/>. -*/ - -/* - * scan matrix - */ -#include <stdint.h> -#include <stdbool.h> -#include <avr/io.h> -#include <util/delay.h> -#include "print.h" -#include "util.h" -#include "debug.h" -#include "adb.h" -#include "matrix.h" -#include "report.h" -#include "host.h" - - -#if (MATRIX_COLS > 16) -# error "MATRIX_COLS must not exceed 16" -#endif -#if (MATRIX_ROWS > 255) -# error "MATRIX_ROWS must not exceed 255" -#endif - - -static bool is_modified = false; -static report_mouse_t mouse_report = {}; - -// matrix state buffer(1:on, 0:off) -#if (MATRIX_COLS <= 8) -static uint8_t matrix[MATRIX_ROWS]; -#else -static uint16_t matrix[MATRIX_ROWS]; -#endif - -#ifdef MATRIX_HAS_GHOST -static bool matrix_has_ghost_in_row(uint8_t row); -#endif -static void register_key(uint8_t key); - - -inline -uint8_t matrix_rows(void) -{ - return MATRIX_ROWS; -} - -inline -uint8_t matrix_cols(void) -{ - return MATRIX_COLS; -} - -void matrix_init(void) -{ - adb_host_init(); - // wait for keyboard to boot up and receive command - _delay_ms(1000); - // Enable keyboard left/right modifier distinction - // Addr:Keyboard(0010), Cmd:Listen(10), Register3(11) - // upper byte: reserved bits 0000, device address 0010 - // lower byte: device handler 00000011 - adb_host_listen(0x2B,0x02,0x03); - - // initialize matrix state: all keys off - for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00; - - debug_enable = true; - //debug_matrix = true; - //debug_keyboard = true; - //debug_mouse = true; - print("debug enabled.\n"); - return; -} - -#ifdef ADB_MOUSE_ENABLE - -#ifdef MAX -#undef MAX -#endif -#define MAX(X, Y) ((X) > (Y) ? (X) : (Y)) - -void adb_mouse_task(void) -{ - uint16_t codes; - int16_t x, y; - static int8_t mouseacc; - _delay_ms(12); // delay for preventing overload of poor ADB keyboard controller - codes = adb_host_mouse_recv(); - // If nothing received reset mouse acceleration, and quit. - if (!codes) { - mouseacc = 1; - return; - }; - // Bit sixteen is button. - if (~codes & (1 << 15)) - mouse_report.buttons |= MOUSE_BTN1; - if (codes & (1 << 15)) - mouse_report.buttons &= ~MOUSE_BTN1; - // lower seven bits are movement, as signed int_7. - // low byte is X-axis, high byte is Y. - y = (codes>>8 & 0x3F); - x = (codes>>0 & 0x3F); - // bit seven and fifteen is negative - // usb does not use int_8, but int_7 (measuring distance) with sign-bit. - if (codes & (1 << 6)) - x = (x-0x40); - if (codes & (1 << 14)) - y = (y-0x40); - // Accelerate mouse. (They weren't meant to be used on screens larger than 320x200). - x *= mouseacc; - y *= mouseacc; - // Cap our two bytes per axis to one byte. - // Easier with a MIN-function, but since -MAX(-a,-b) = MIN(a,b)... - // I.E. MIN(MAX(x,-127),127) = -MAX(-MAX(x, -127), -127) = MIN(-MIN(-x,127),127) - mouse_report.x = -MAX(-MAX(x, -127), -127); - mouse_report.y = -MAX(-MAX(y, -127), -127); - if (debug_mouse) { - print("adb_host_mouse_recv: "); print_bin16(codes); print("\n"); - print("adb_mouse raw: ["); - phex(mouseacc); print(" "); - phex(mouse_report.buttons); print("|"); - print_decs(mouse_report.x); print(" "); - print_decs(mouse_report.y); print("]\n"); - } - // Send result by usb. - host_mouse_send(&mouse_report); - // increase acceleration of mouse - mouseacc += ( mouseacc < ADB_MOUSE_MAXACC ? 1 : 0 ); - return; -} -#endif - -uint8_t matrix_scan(void) -{ - /* extra_key is volatile and more convoluted than necessary because gcc refused - to generate valid code otherwise. Making extra_key uint8_t and constructing codes - here via codes = extra_key<<8 | 0xFF; would consistently fail to even LOAD - extra_key from memory, and leave garbage in the high byte of codes. I tried - dozens of code variations and it kept generating broken assembly output. So - beware if attempting to make extra_key code more logical and efficient. */ - static volatile uint16_t extra_key = 0xFFFF; - uint16_t codes; - uint8_t key0, key1; - - is_modified = false; - - codes = extra_key; - extra_key = 0xFFFF; - - if ( codes == 0xFFFF ) - { - _delay_ms(12); // delay for preventing overload of poor ADB keyboard controller - codes = adb_host_kbd_recv(); - } - key0 = codes>>8; - key1 = codes&0xFF; - - if (debug_matrix && codes) { - print("adb_host_kbd_recv: "); phex16(codes); print("\n"); - } - - if (codes == 0) { // no keys - return 0; - } else if (codes == 0x7F7F) { // power key press - register_key(0x7F); - } else if (codes == 0xFFFF) { // power key release - register_key(0xFF); - } else if (key0 == 0xFF) { // error - xprintf("adb_host_kbd_recv: ERROR(%d)\n", codes); - return key1; - } else { - register_key(key0); - if (key1 != 0xFF) // key1 is 0xFF when no second key. - extra_key = key1<<8 | 0xFF; // process in a separate call - } - - 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 -#if (MATRIX_COLS <= 8) -uint8_t matrix_get_row(uint8_t row) -#else -uint16_t matrix_get_row(uint8_t row) -#endif -{ - return matrix[row]; -} - -void matrix_print(void) -{ - if (!debug_matrix) return; -#if (MATRIX_COLS <= 8) - print("r/c 01234567\n"); -#else - print("r/c 0123456789ABCDEF\n"); -#endif - for (uint8_t row = 0; row < matrix_rows(); row++) { - phex(row); print(": "); -#if (MATRIX_COLS <= 8) - pbin_reverse(matrix_get_row(row)); -#else - pbin_reverse16(matrix_get_row(row)); -#endif -#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++) { -#if (MATRIX_COLS <= 8) - count += bitpop(matrix[i]); -#else - count += bitpop16(matrix[i]); -#endif - } - 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 register_key(uint8_t key) -{ - uint8_t col, row; - col = key&0x07; - row = (key>>3)&0x0F; - if (key&0x80) { - matrix[row] &= ~(1<<col); - } else { - matrix[row] |= (1<<col); - } - is_modified = true; -} |