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- /* 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...");
- 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;
- }
- }
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