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-rw-r--r--keyboards/converter/adb_usb/matrix.c267
1 files changed, 267 insertions, 0 deletions
diff --git a/keyboards/converter/adb_usb/matrix.c b/keyboards/converter/adb_usb/matrix.c
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+++ b/keyboards/converter/adb_usb/matrix.c
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+/*
+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);
+ }
+}