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