mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-11-27 13:40:14 +00:00
221 lines
7.3 KiB
C
221 lines
7.3 KiB
C
/*
|
|
Copyright 2011,2013 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/>.
|
|
*/
|
|
|
|
#include <stdbool.h>
|
|
#include<avr/io.h>
|
|
#include<util/delay.h>
|
|
#include "ps2.h"
|
|
#include "ps2_mouse.h"
|
|
#include "report.h"
|
|
#include "host.h"
|
|
#include "timer.h"
|
|
#include "print.h"
|
|
#include "debug.h"
|
|
|
|
|
|
static report_mouse_t mouse_report = {};
|
|
|
|
|
|
static void print_usb_data(void);
|
|
|
|
|
|
/* supports only 3 button mouse at this time */
|
|
uint8_t ps2_mouse_init(void) {
|
|
uint8_t rcv;
|
|
|
|
ps2_host_init();
|
|
|
|
_delay_ms(1000); // wait for powering up
|
|
|
|
// send Reset
|
|
rcv = ps2_host_send(0xFF);
|
|
print("ps2_mouse_init: send Reset: ");
|
|
phex(rcv); phex(ps2_error); print("\n");
|
|
|
|
// read completion code of BAT
|
|
rcv = ps2_host_recv_response();
|
|
print("ps2_mouse_init: read BAT: ");
|
|
phex(rcv); phex(ps2_error); print("\n");
|
|
|
|
// read Device ID
|
|
rcv = ps2_host_recv_response();
|
|
print("ps2_mouse_init: read DevID: ");
|
|
phex(rcv); phex(ps2_error); print("\n");
|
|
|
|
// send Set Remote mode
|
|
rcv = ps2_host_send(0xF0);
|
|
print("ps2_mouse_init: send 0xF0: ");
|
|
phex(rcv); phex(ps2_error); print("\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define X_IS_NEG (mouse_report.buttons & (1<<PS2_MOUSE_X_SIGN))
|
|
#define Y_IS_NEG (mouse_report.buttons & (1<<PS2_MOUSE_Y_SIGN))
|
|
#define X_IS_OVF (mouse_report.buttons & (1<<PS2_MOUSE_X_OVFLW))
|
|
#define Y_IS_OVF (mouse_report.buttons & (1<<PS2_MOUSE_Y_OVFLW))
|
|
void ps2_mouse_task(void)
|
|
{
|
|
enum { SCROLL_NONE, SCROLL_BTN, SCROLL_SENT };
|
|
static uint8_t scroll_state = SCROLL_NONE;
|
|
static uint8_t buttons_prev = 0;
|
|
|
|
/* receives packet from mouse */
|
|
uint8_t rcv;
|
|
rcv = ps2_host_send(PS2_MOUSE_READ_DATA);
|
|
if (rcv == PS2_ACK) {
|
|
mouse_report.buttons = ps2_host_recv_response();
|
|
mouse_report.x = ps2_host_recv_response();
|
|
mouse_report.y = ps2_host_recv_response();
|
|
} else {
|
|
if (debug_mouse) print("ps2_mouse: fail to get mouse packet\n");
|
|
return;
|
|
}
|
|
xprintf("%ud ", timer_read());
|
|
print("ps2_mouse raw: [");
|
|
phex(mouse_report.buttons); print("|");
|
|
print_hex8((uint8_t)mouse_report.x); print(" ");
|
|
print_hex8((uint8_t)mouse_report.y); print("]\n");
|
|
|
|
/* if mouse moves or buttons state changes */
|
|
if (mouse_report.x || mouse_report.y ||
|
|
((mouse_report.buttons ^ buttons_prev) & PS2_MOUSE_BTN_MASK)) {
|
|
|
|
#ifdef PS2_MOUSE_DEBUG
|
|
print("ps2_mouse raw: [");
|
|
phex(mouse_report.buttons); print("|");
|
|
print_hex8((uint8_t)mouse_report.x); print(" ");
|
|
print_hex8((uint8_t)mouse_report.y); print("]\n");
|
|
#endif
|
|
|
|
buttons_prev = mouse_report.buttons;
|
|
|
|
// PS/2 mouse data is '9-bit integer'(-256 to 255) which is comprised of sign-bit and 8-bit value.
|
|
// bit: 8 7 ... 0
|
|
// sign \8-bit/
|
|
//
|
|
// Meanwhile USB HID mouse indicates 8bit data(-127 to 127), note that -128 is not used.
|
|
//
|
|
// This converts PS/2 data into HID value. Use only -127-127 out of PS/2 9-bit.
|
|
mouse_report.x = X_IS_NEG ?
|
|
((!X_IS_OVF && -127 <= mouse_report.x && mouse_report.x <= -1) ? mouse_report.x : -127) :
|
|
((!X_IS_OVF && 0 <= mouse_report.x && mouse_report.x <= 127) ? mouse_report.x : 127);
|
|
mouse_report.y = Y_IS_NEG ?
|
|
((!Y_IS_OVF && -127 <= mouse_report.y && mouse_report.y <= -1) ? mouse_report.y : -127) :
|
|
((!Y_IS_OVF && 0 <= mouse_report.y && mouse_report.y <= 127) ? mouse_report.y : 127);
|
|
|
|
// remove sign and overflow flags
|
|
mouse_report.buttons &= PS2_MOUSE_BTN_MASK;
|
|
|
|
// invert coordinate of y to conform to USB HID mouse
|
|
mouse_report.y = -mouse_report.y;
|
|
|
|
|
|
#if PS2_MOUSE_SCROLL_BTN_MASK
|
|
static uint16_t scroll_button_time = 0;
|
|
if ((mouse_report.buttons & (PS2_MOUSE_SCROLL_BTN_MASK)) == (PS2_MOUSE_SCROLL_BTN_MASK)) {
|
|
if (scroll_state == SCROLL_NONE) {
|
|
scroll_button_time = timer_read();
|
|
scroll_state = SCROLL_BTN;
|
|
}
|
|
|
|
// doesn't send Scroll Button
|
|
//mouse_report.buttons &= ~(PS2_MOUSE_SCROLL_BTN_MASK);
|
|
|
|
if (mouse_report.x || mouse_report.y) {
|
|
scroll_state = SCROLL_SENT;
|
|
|
|
mouse_report.v = -mouse_report.y/(PS2_MOUSE_SCROLL_DIVISOR_V);
|
|
mouse_report.h = mouse_report.x/(PS2_MOUSE_SCROLL_DIVISOR_H);
|
|
mouse_report.x = 0;
|
|
mouse_report.y = 0;
|
|
//host_mouse_send(&mouse_report);
|
|
}
|
|
}
|
|
else if ((mouse_report.buttons & (PS2_MOUSE_SCROLL_BTN_MASK)) == 0) {
|
|
#if PS2_MOUSE_SCROLL_BTN_SEND
|
|
if (scroll_state == SCROLL_BTN &&
|
|
TIMER_DIFF_16(timer_read(), scroll_button_time) < PS2_MOUSE_SCROLL_BTN_SEND) {
|
|
// send Scroll Button(down and up at once) when not scrolled
|
|
mouse_report.buttons |= (PS2_MOUSE_SCROLL_BTN_MASK);
|
|
host_mouse_send(&mouse_report);
|
|
_delay_ms(100);
|
|
mouse_report.buttons &= ~(PS2_MOUSE_SCROLL_BTN_MASK);
|
|
}
|
|
#endif
|
|
scroll_state = SCROLL_NONE;
|
|
}
|
|
// doesn't send Scroll Button
|
|
mouse_report.buttons &= ~(PS2_MOUSE_SCROLL_BTN_MASK);
|
|
#endif
|
|
|
|
|
|
host_mouse_send(&mouse_report);
|
|
print_usb_data();
|
|
}
|
|
// clear report
|
|
mouse_report.x = 0;
|
|
mouse_report.y = 0;
|
|
mouse_report.v = 0;
|
|
mouse_report.h = 0;
|
|
mouse_report.buttons = 0;
|
|
}
|
|
|
|
static void print_usb_data(void)
|
|
{
|
|
if (!debug_mouse) return;
|
|
print("ps2_mouse usb: [");
|
|
phex(mouse_report.buttons); print("|");
|
|
print_hex8((uint8_t)mouse_report.x); print(" ");
|
|
print_hex8((uint8_t)mouse_report.y); print(" ");
|
|
print_hex8((uint8_t)mouse_report.v); print(" ");
|
|
print_hex8((uint8_t)mouse_report.h); print("]\n");
|
|
}
|
|
|
|
|
|
/* PS/2 Mouse Synopsis
|
|
* http://www.computer-engineering.org/ps2mouse/
|
|
*
|
|
* Command:
|
|
* 0xFF: Reset
|
|
* 0xF6: Set Defaults Sampling; rate=100, resolution=4cnt/mm, scaling=1:1, reporting=disabled
|
|
* 0xF5: Disable Data Reporting
|
|
* 0xF4: Enable Data Reporting
|
|
* 0xF3: Set Sample Rate
|
|
* 0xF2: Get Device ID
|
|
* 0xF0: Set Remote Mode
|
|
* 0xEB: Read Data
|
|
* 0xEA: Set Stream Mode
|
|
* 0xE9: Status Request
|
|
* 0xE8: Set Resolution
|
|
* 0xE7: Set Scaling 2:1
|
|
* 0xE6: Set Scaling 1:1
|
|
*
|
|
* Mode:
|
|
* Stream Mode: devices sends the data when it changs its state
|
|
* Remote Mode: host polls the data periodically
|
|
*
|
|
* This code uses Remote Mode and polls the data with Read Data(0xEB).
|
|
*
|
|
* Data format:
|
|
* byte|7 6 5 4 3 2 1 0
|
|
* ----+--------------------------------------------------------------
|
|
* 0|Yovflw Xovflw Ysign Xsign 1 Middle Right Left
|
|
* 1| X movement
|
|
* 2| Y movement
|
|
*/
|