Archived
1
0
This repo is archived. You can view files and clone it, but cannot push or open issues or pull requests.
controller/Output/pjrcUSB/arm/usb_mouse.c

303 lines
9.1 KiB
C
Raw Normal View History

/* Teensyduino Core Library
* http://www.pjrc.com/teensy/
* Copyright (c) 2013 PJRC.COM, LLC.
* Modified by Jacob Alexander (2015-2016)
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* 1. The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* 2. If the Software is incorporated into a build system that allows
* selection among a list of target devices, then similar target
* devices manufactured by PJRC.COM must be included in the list of
* target devices and selectable in the same manner.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
// ----- Includes -----
// Compiler Includes
#include <string.h> // for memcpy()
// Project Includes
#include <Lib/OutputLib.h>
#include <print.h>
// Local Includes
#include "usb_dev.h"
#include "usb_mouse.h"
// ----- Defines -----
// Maximum number of transmit packets to queue so we don't starve other endpoints for memory
#define TX_PACKET_LIMIT 3
// When the PC isn't listening, how long do we wait before discarding data?
#define TX_TIMEOUT_MSEC 30
#if F_CPU == 168000000
#define TX_TIMEOUT (TX_TIMEOUT_MSEC * 1100)
#elif F_CPU == 144000000
#define TX_TIMEOUT (TX_TIMEOUT_MSEC * 932)
#elif F_CPU == 120000000
#define TX_TIMEOUT (TX_TIMEOUT_MSEC * 764)
#elif F_CPU == 96000000
#define TX_TIMEOUT (TX_TIMEOUT_MSEC * 596)
#elif F_CPU == 72000000
#define TX_TIMEOUT (TX_TIMEOUT_MSEC * 512)
#elif F_CPU == 48000000
#define TX_TIMEOUT (TX_TIMEOUT_MSEC * 428)
#elif F_CPU == 24000000
#define TX_TIMEOUT (TX_TIMEOUT_MSEC * 262)
#endif
//#define DEFAULT_XRES 640
//#define DEFAULT_YRES 480
//#define DEFAULT_XRES 800
//#define DEFAULT_YRES 600
//#define DEFAULT_XRES 1024
//#define DEFAULT_YRES 768
//#define DEFAULT_XRES 1280
//#define DEFAULT_YRES 720
//#define DEFAULT_XRES 1280
//#define DEFAULT_YRES 800
#define DEFAULT_XRES 1366
#define DEFAULT_YRES 768
//#define DEFAULT_XRES 1440
//#define DEFAULT_YRES 900
//#define DEFAULT_XRES 1920
//#define DEFAULT_YRES 1080
//#define DEFAULT_XRES 2560
//#define DEFAULT_YRES 1440
//#define DEFAULT_XRES 2560
//#define DEFAULT_YRES 1600
//#define DEFAULT_XRES 2880
//#define DEFAULT_YRES 1800
//#define DEFAULT_XRES 3840
//#define DEFAULT_YRES 2160
//#define DEFAULT_XRES 7680
//#define DEFAULT_YRES 4320
#define DEFAULT_XSCALE ((0x80000000ul+DEFAULT_XRES/2)/DEFAULT_XRES)
#define DEFAULT_YSCALE ((0x80000000ul+DEFAULT_YRES/2)/DEFAULT_YRES)
// ----- Variables -----
static uint8_t transmit_previous_timeout = 0;
// which buttons are currently pressed
uint8_t usb_mouse_buttons_state = 0;
static uint16_t usb_mouse_resolution_x = DEFAULT_XRES;
static uint16_t usb_mouse_resolution_y = DEFAULT_YRES;
static uint16_t usb_mouse_position_x = DEFAULT_XRES / 2;
static uint16_t usb_mouse_position_y = DEFAULT_YRES / 2;
static uint32_t usb_mouse_scale_x = DEFAULT_XSCALE;
static uint32_t usb_mouse_scale_y = DEFAULT_YSCALE;
static uint32_t usb_mouse_offset_x = DEFAULT_XSCALE / 2 - 1;
static uint32_t usb_mouse_offset_y = DEFAULT_YSCALE / 2 - 1;
// ----- Functions -----
// Process pending mouse commands
// XXX Missing mouse movement and wheels
// Proper support will require KLL generation of the USB descriptors
// Similar support will be required for joystick control
void usb_mouse_send()
{
uint32_t wait_count = 0;
usb_packet_t *tx_packet;
// Wait till ready
while ( 1 )
{
if ( !usb_configuration )
{
erro_print("USB not configured...");
return;
}
// Attempt to acquire a USB packet for the mouse endpoint
if ( usb_tx_packet_count( MOUSE_ENDPOINT ) < TX_PACKET_LIMIT )
{
tx_packet = usb_malloc();
if ( tx_packet )
break;
}
if ( ++wait_count > TX_TIMEOUT || transmit_previous_timeout )
{
transmit_previous_timeout = 1;
warn_print("USB Transmit Timeout...");
// Clear status and state
USBMouse_Buttons = 0;
USBMouse_Relative_x = 0;
USBMouse_Relative_y = 0;
USBMouse_Changed = 0;
return;
}
yield();
}
transmit_previous_timeout = 0;
// Prepare USB Mouse Packet
// TODO Dynamically generate this code based on KLL requirements
uint16_t *packet_data = (uint16_t*)(&tx_packet->buf[0]);
packet_data[0] = USBMouse_Buttons;
packet_data[1] = USBMouse_Relative_x;
packet_data[2] = USBMouse_Relative_y;
tx_packet->len = 6;
usb_tx( MOUSE_ENDPOINT, tx_packet );
// Clear status and state
USBMouse_Buttons = 0;
USBMouse_Relative_x = 0;
USBMouse_Relative_y = 0;
USBMouse_Changed = 0;
}
// Move the mouse. x, y and wheel are -127 to 127. Use 0 for no movement.
int usb_mouse_move(int8_t x, int8_t y, int8_t wheel)
{
uint32_t wait_count=0;
usb_packet_t *tx_packet;
//serial_print("move");
//serial_print("\n");
if (x == -128) x = -127;
if (y == -128) y = -127;
if (wheel == -128) wheel = -127;
while (1) {
if (!usb_configuration) {
return -1;
}
if (usb_tx_packet_count(MOUSE_ENDPOINT) < TX_PACKET_LIMIT) {
tx_packet = usb_malloc();
if (tx_packet) break;
}
if (++wait_count > TX_TIMEOUT || transmit_previous_timeout) {
transmit_previous_timeout = 1;
return -1;
}
yield();
}
transmit_previous_timeout = 0;
*(tx_packet->buf + 0) = 1;
*(tx_packet->buf + 1) = usb_mouse_buttons_state;
*(tx_packet->buf + 2) = x;
*(tx_packet->buf + 3) = y;
*(tx_packet->buf + 4) = wheel;
tx_packet->len = 5;
usb_tx(MOUSE_ENDPOINT, tx_packet);
return 0;
}
int usb_mouse_position(uint16_t x, uint16_t y)
{
uint32_t wait_count=0, val32;
usb_packet_t *tx_packet;
if (x >= usb_mouse_resolution_x) x = usb_mouse_resolution_x - 1;
usb_mouse_position_x = x;
if (y >= usb_mouse_resolution_y) y = usb_mouse_resolution_y - 1;
usb_mouse_position_y = y;
while (1) {
if (!usb_configuration) {
return -1;
}
if (usb_tx_packet_count(MOUSE_ENDPOINT) < TX_PACKET_LIMIT) {
tx_packet = usb_malloc();
if (tx_packet) break;
}
if (++wait_count > TX_TIMEOUT || transmit_previous_timeout) {
transmit_previous_timeout = 1;
return -1;
}
yield();
}
transmit_previous_timeout = 0;
*(tx_packet->buf + 0) = 2;
val32 = usb_mouse_position_x * usb_mouse_scale_x + usb_mouse_offset_x;
//serial_print("position:");
//serial_phex16(usb_mouse_position_x);
//serial_print("->");
//serial_phex32(val32);
*(tx_packet->buf + 1) = val32 >> 16;
*(tx_packet->buf + 2) = val32 >> 24;
val32 = usb_mouse_position_y * usb_mouse_scale_y + usb_mouse_offset_y;
//serial_print(",");
//serial_phex16(usb_mouse_position_y);
//serial_print("->");
//serial_phex32(val32);
//serial_print("\n");
*(tx_packet->buf + 3) = val32 >> 16;
*(tx_packet->buf + 4) = val32 >> 24;
tx_packet->len = 5;
usb_tx(MOUSE_ENDPOINT, tx_packet);
return 0;
}
void usb_mouse_screen_size(uint16_t width, uint16_t height, uint8_t mac)
{
if (width < 128) width = 128;
else if (width > 7680) width = 7680;
if (height < 128) height = 128;
else if (height > 7680) height = 7680;
usb_mouse_resolution_x = width;
usb_mouse_resolution_y = height;
usb_mouse_position_x = width / 2;
usb_mouse_position_y = height / 2;
usb_mouse_scale_x = (0x80000000ul + (width >> 1)) / width;
usb_mouse_scale_y = (0x80000000ul + (height >> 1)) / height;
usb_mouse_offset_x = (usb_mouse_scale_x >> 1) - 1;
usb_mouse_offset_y = (usb_mouse_scale_y >> 1) - 1;
if (mac) {
// ugly workaround for Mac's HID coordinate scaling:
// http://lists.apple.com/archives/usb/2011/Jun/msg00032.html
usb_mouse_offset_x += 161061273ul;
usb_mouse_offset_y += 161061273ul;
usb_mouse_scale_x = (1825361101ul + (width >> 1)) / width;
usb_mouse_scale_y = (1825361101ul + (height >> 1)) / height;
}
}