mirror of
https://github.com/Keychron/qmk_firmware.git
synced 2024-12-27 11:38:58 +06:00
125 lines
3.0 KiB
C
125 lines
3.0 KiB
C
/*
|
|
Copyright 2014 Robin Haberkorn <robin.haberkorn@googlemail.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/>.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <avr/io.h>
|
|
#include <util/delay.h>
|
|
|
|
#include "serial.h"
|
|
#include "serial_mouse.h"
|
|
#include "report.h"
|
|
#include "host.h"
|
|
#include "timer.h"
|
|
#include "print.h"
|
|
#include "debug.h"
|
|
|
|
#ifdef MAX
|
|
#undef MAX
|
|
#endif
|
|
#define MAX(X, Y) ((X) > (Y) ? (X) : (Y))
|
|
|
|
static void print_usb_data(const report_mouse_t *report);
|
|
|
|
void serial_mouse_task(void)
|
|
{
|
|
/* 3 byte ring buffer */
|
|
static uint8_t buffer[3];
|
|
static int buffer_cur = 0;
|
|
|
|
static report_mouse_t report = {};
|
|
|
|
int16_t rcv;
|
|
|
|
rcv = serial_recv2();
|
|
if (rcv < 0)
|
|
/* no new data */
|
|
return;
|
|
|
|
if (debug_mouse)
|
|
xprintf("serial_mouse: byte: %04X\n", rcv);
|
|
|
|
/*
|
|
* If bit 6 is one, this signals the beginning
|
|
* of a 3 byte sequence/packet.
|
|
*/
|
|
if (rcv & (1 << 6))
|
|
buffer_cur = 0;
|
|
|
|
buffer[buffer_cur] = (uint8_t)rcv;
|
|
|
|
if (buffer_cur == 0 && buffer[buffer_cur] == 0x20) {
|
|
/*
|
|
* Logitech extension: This must be a follow-up on
|
|
* the last 3-byte packet signaling a middle button click
|
|
*/
|
|
report.buttons |= MOUSE_BTN3;
|
|
report.x = report.y = 0;
|
|
|
|
print_usb_data(&report);
|
|
host_mouse_send(&report);
|
|
return;
|
|
}
|
|
|
|
buffer_cur++;
|
|
|
|
if (buffer_cur < 3)
|
|
return;
|
|
buffer_cur = 0;
|
|
|
|
/*
|
|
* parse 3 byte packet.
|
|
* NOTE: We only get a complete packet
|
|
* if the mouse moved or the button states
|
|
* change.
|
|
*/
|
|
report.buttons = 0;
|
|
if (buffer[0] & (1 << 5))
|
|
report.buttons |= MOUSE_BTN1;
|
|
if (buffer[0] & (1 << 4))
|
|
report.buttons |= MOUSE_BTN2;
|
|
|
|
report.x = (buffer[0] << 6) | buffer[1];
|
|
report.y = ((buffer[0] << 4) & 0xC0) | buffer[2];
|
|
|
|
/* USB HID uses values from -127 to 127 only */
|
|
report.x = MAX(report.x, -127);
|
|
report.y = MAX(report.y, -127);
|
|
|
|
#if 0
|
|
if (!report.buttons && !report.x && !report.y) {
|
|
/*
|
|
* Microsoft extension: Middle mouse button pressed
|
|
* FIXME: I don't know how exactly this extension works.
|
|
*/
|
|
report.buttons |= MOUSE_BTN3;
|
|
}
|
|
#endif
|
|
|
|
print_usb_data(&report);
|
|
host_mouse_send(&report);
|
|
}
|
|
|
|
static void print_usb_data(const report_mouse_t *report)
|
|
{
|
|
if (!debug_mouse)
|
|
return;
|
|
|
|
xprintf("serial_mouse usb: [%02X|%d %d %d %d]\n",
|
|
report->buttons, report->x, report->y,
|
|
report->v, report->h);
|
|
}
|