/*
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)
{
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 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);
}
}