#include "usb_dev.h"
#include "usb_mouse.h"
#include "core_pins.h"
#include "HardwareSerial.h"
#include <string.h>
#ifdef MOUSE_INTERFACE
#if F_CPU >= 20000000
uint8_t usb_mouse_buttons_state=0;
#define DEFAULT_XRES 1366
#define DEFAULT_YRES 768
#define DEFAULT_XSCALE ((0x80000000ul+DEFAULT_XRES/2)/DEFAULT_XRES)
#define DEFAULT_YSCALE ((0x80000000ul+DEFAULT_YRES/2)/DEFAULT_YRES)
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;
int usb_mouse_buttons(uint8_t left, uint8_t middle, uint8_t right, uint8_t back, uint8_t forward)
{
uint8_t mask=0;
if (left) mask |= 1;
if (middle) mask |= 4;
if (right) mask |= 2;
if (back) mask |= 8;
if (forward) mask |= 16;
usb_mouse_buttons_state = mask;
return usb_mouse_move(0, 0, 0, 0);
}
#define TX_PACKET_LIMIT 3
static uint8_t transmit_previous_timeout=0;
#define TX_TIMEOUT_MSEC 30
#if F_CPU == 240000000
#define TX_TIMEOUT (TX_TIMEOUT_MSEC * 1600)
#elif F_CPU == 216000000
#define TX_TIMEOUT (TX_TIMEOUT_MSEC * 1440)
#elif F_CPU == 192000000
#define TX_TIMEOUT (TX_TIMEOUT_MSEC * 1280)
#elif F_CPU == 180000000
#define TX_TIMEOUT (TX_TIMEOUT_MSEC * 1200)
#elif 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
int usb_mouse_move(int8_t x, int8_t y, int8_t wheel, int8_t horiz)
{
uint32_t wait_count=0;
usb_packet_t *tx_packet;
if (x == -128) x = -127;
if (y == -128) y = -127;
if (wheel == -128) wheel = -127;
if (horiz == -128) horiz = -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->buf + 5) = horiz; tx_packet->len = 6;
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;
*(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;
*(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) {
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;
}
}
#endif #endif