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Diffstat (limited to 'keyboards/converter/adb_usb/matrix.c')
| -rw-r--r-- | keyboards/converter/adb_usb/matrix.c | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/keyboards/converter/adb_usb/matrix.c b/keyboards/converter/adb_usb/matrix.c new file mode 100644 index 0000000000..8ee48bf23f --- /dev/null +++ b/keyboards/converter/adb_usb/matrix.c @@ -0,0 +1,267 @@ +/* +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/>. + +Ported to QMK by Peter Roe <pete@13bit.me> +*/ + +#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" +#include "led.h" +#include "timer.h" + +static bool is_iso_layout = false; + +// matrix state buffer(1:on, 0:off) +static matrix_row_t matrix[MATRIX_ROWS]; + +static void register_key(uint8_t key); + +__attribute__ ((weak)) +void matrix_init_kb(void) { + matrix_init_user(); +} + +__attribute__ ((weak)) +void matrix_scan_kb(void) { + matrix_scan_user(); +} + +__attribute__ ((weak)) +void matrix_init_user(void) { +} + +__attribute__ ((weak)) +void matrix_scan_user(void) { +} + +void matrix_init(void) +{ + // LED on + DDRD |= (1<<6); PORTD |= (1<<6); + + adb_host_init(); + // wait for keyboard to boot up and receive command + _delay_ms(2000); + + // initialize matrix state: all keys off + for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00; + + led_set(host_keyboard_leds()); + + // debug_enable = false; + // debug_matrix = true; + // debug_keyboard = true; + // debug_mouse = true; + // print("debug enabled.\n"); + + // LED off + DDRD |= (1<<6); PORTD &= ~(1<<6); + matrix_init_quantum(); +} + +#ifdef ADB_MOUSE_ENABLE + +#ifdef MAX +#undef MAX +#endif +#define MAX(X, Y) ((X) > (Y) ? (X) : (Y)) + +static report_mouse_t mouse_report = {}; + +void adb_mouse_task(void) +{ + uint16_t codes; + int16_t x, y; + static int8_t mouseacc; + + /* tick of last polling */ + static uint16_t tick_ms; + + // polling with 12ms interval + if (timer_elapsed(tick_ms) < 12) return; + tick_ms = timer_read(); + + 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; + + /* tick of last polling */ + static uint16_t tick_ms; + + codes = extra_key; + extra_key = 0xFFFF; + + if ( codes == 0xFFFF ) + { + // polling with 12ms interval + if (timer_elapsed(tick_ms) < 12) return 0; + tick_ms = timer_read(); + + 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); + // something wrong or plug-in + matrix_init(); + return key1; + } else { + /* Swap codes for ISO keyboard + * https://github.com/tmk/tmk_keyboard/issues/35 + * + * ANSI + * ,----------- ----------. + * | *a| 1| 2 =|Backspa| + * |----------- ----------| + * |Tab | Q| | ]| *c| + * |----------- ----------| + * |CapsLo| A| '|Return | + * |----------- ----------| + * |Shift | Shift | + * `----------- ----------' + * + * ISO + * ,----------- ----------. + * | *a| 1| 2 =|Backspa| + * |----------- ----------| + * |Tab | Q| | ]|Retur| + * |----------- -----` | + * |CapsLo| A| '| *c| | + * |----------- ----------| + * |Shif| *b| Shift | + * `----------- ----------' + * + * ADB scan code USB usage + * ------------- --------- + * Key ANSI ISO ANSI ISO + * --------------------------------------------- + * *a 0x32 0x0A 0x35 0x35 + * *b ---- 0x32 ---- 0x64 + * *c 0x2A 0x2A 0x31 0x31(or 0x32) + */ + if (is_iso_layout) { + if ((key0 & 0x7F) == 0x32) { + key0 = (key0 & 0x80) | 0x0A; + } else if ((key0 & 0x7F) == 0x0A) { + key0 = (key0 & 0x80) | 0x32; + } + } + register_key(key0); + if (key1 != 0xFF) // key1 is 0xFF when no second key. + extra_key = key1<<8 | 0xFF; // process in a separate call + } + + matrix_scan_quantum(); + return 1; +} + +void matrix_print(void){ + +} + +inline +matrix_row_t matrix_get_row(uint8_t row) +{ + return matrix[row]; +} + +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); + } +} |