1 files changed, 269 insertions, 0 deletions

diff --git a/keyboards/converter/adb_usb/matrix.c b/keyboards/converter/adb_usb/matrix.c
new file mode 100644
index 000000000..e6a492196
--- /dev/null
+++ b/keyboards/converter/adb_usb/matrix.c
@@ -0,0 +1,269 @@
+/*
+Copyright 2011 Jun Wako <[email protected]>
+
+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 <[email protected]>
+*/
+
+#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"
+
+#ifndef ADB_MOUSE_MAXACC
+#    define ADB_MOUSE_MAXACC 8
+#endif
+
+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)
+{
+    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;
+
+    // debug_enable = true;
+    // debug_matrix = true;
+    // debug_keyboard = true;
+    // debug_mouse = true;
+    // print("debug enabled.\n");
+
+    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 housekeeping_task_kb(void) {
+    adb_mouse_task();
+}
+
+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: [");
+            print_hex8(mouseacc); print(" ");
+            print_hex8(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: "); print_hex16(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);
+    }
+}