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tusb_hid_mouse.h
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#pragma once
#include "class/hid/hid_device.h"
#if !defined TUD_HID_REPORT_DESC_ABSMOUSE
// This version of arduino-esp32 does not handle absolute mouse natively.
// Let's throw a minimalistic implementation of absmouse driver.
// See: https://github.com/hathach/tinyusb/pull/1363
// Also see: https://github.com/espressif/arduino-esp32/pull/6331
extern "C" {
// Absolute Mouse data struct is a copy of the relative mouse struct
// with int16_t instead of int8_t for X and Y coordinates.
typedef struct TU_ATTR_PACKED
{
uint8_t buttons = 0;
int16_t x = 0;
int16_t y = 0;
int8_t wheel = 0;
int8_t pan = 0;
} hid_abs_mouse_report_t;
// Absolute Mouse Report Descriptor Template applies those datatype changes too
#define TUD_HID_REPORT_DESC_ABSMOUSE(...) \
HID_USAGE_PAGE ( HID_USAGE_PAGE_DESKTOP ) ,\
HID_USAGE ( HID_USAGE_DESKTOP_MOUSE ) ,\
HID_COLLECTION ( HID_COLLECTION_APPLICATION ) ,\
/* Report ID if any */\
__VA_ARGS__ \
HID_USAGE ( HID_USAGE_DESKTOP_POINTER ) ,\
HID_COLLECTION ( HID_COLLECTION_PHYSICAL ) ,\
HID_USAGE_PAGE ( HID_USAGE_PAGE_BUTTON ) ,\
HID_USAGE_MIN ( 1 ) ,\
HID_USAGE_MAX ( 5 ) ,\
HID_LOGICAL_MIN ( 0 ) ,\
HID_LOGICAL_MAX ( 1 ) ,\
/* Left, Right, Middle, Backward, Forward buttons */ \
HID_REPORT_COUNT( 5 ) ,\
HID_REPORT_SIZE ( 1 ) ,\
HID_INPUT ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE ) ,\
/* 3 bit padding */ \
HID_REPORT_COUNT( 1 ) ,\
HID_REPORT_SIZE ( 3 ) ,\
HID_INPUT ( HID_CONSTANT ) ,\
HID_USAGE_PAGE ( HID_USAGE_PAGE_DESKTOP ) ,\
/* X, Y absolute position [0, 32767] */ \
HID_USAGE ( HID_USAGE_DESKTOP_X ) ,\
HID_USAGE ( HID_USAGE_DESKTOP_Y ) ,\
HID_LOGICAL_MIN ( 0x00 ) ,\
HID_LOGICAL_MAX_N( 0x7FFF, 2 ) ,\
HID_REPORT_SIZE ( 16 ) ,\
HID_REPORT_COUNT ( 2 ) ,\
HID_INPUT ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE ) ,\
/* Vertical wheel scroll [-127, 127] */ \
HID_USAGE ( HID_USAGE_DESKTOP_WHEEL ) ,\
HID_LOGICAL_MIN ( 0x81 ) ,\
HID_LOGICAL_MAX ( 0x7f ) ,\
HID_REPORT_COUNT( 1 ) ,\
HID_REPORT_SIZE ( 8 ) ,\
HID_INPUT ( HID_DATA | HID_VARIABLE | HID_RELATIVE ) ,\
HID_USAGE_PAGE ( HID_USAGE_PAGE_CONSUMER ), \
/* Horizontal wheel scroll [-127, 127] */ \
HID_USAGE_N ( HID_USAGE_CONSUMER_AC_PAN, 2 ), \
HID_LOGICAL_MIN ( 0x81 ), \
HID_LOGICAL_MAX ( 0x7f ), \
HID_REPORT_COUNT( 1 ), \
HID_REPORT_SIZE ( 8 ), \
HID_INPUT ( HID_DATA | HID_VARIABLE | HID_RELATIVE ), \
HID_COLLECTION_END , \
HID_COLLECTION_END \
static inline bool tud_hid_n_abs_mouse_report(uint8_t instance, uint8_t report_id, uint8_t buttons, int16_t x, int16_t y, int8_t vertical, int8_t horizontal)
{
hid_abs_mouse_report_t report =
{
.buttons = buttons,
.x = x,
.y = y,
.wheel = vertical,
.pan = horizontal
};
return tud_hid_n_report(instance, report_id, &report, sizeof(report));
}
static inline bool tud_hid_abs_mouse_report(uint8_t report_id, uint8_t buttons, int16_t x, int16_t y, int8_t vertical, int8_t horizontal)
{
return tud_hid_n_abs_mouse_report(0, report_id, buttons, x, y, vertical, horizontal);
}
} // end extern "C"
#else
#pragma message "This file is now safe to delete along with its include from USBHIDMouse.h"
#endif