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trezor-firmware/embed/trezorhal/touch.h
2017-11-21 10:22:16 -05:00

35 lines
889 B
C

/*
* Copyright (c) Pavol Rusnak, SatoshiLabs
*
* Licensed under TREZOR License
* see LICENSE file for details
*/
#ifndef TREZORHAL_TOUCH_H
#define TREZORHAL_TOUCH_H
#include <stdint.h>
#define TOUCH_START (1U << 24)
#define TOUCH_MOVE (2U << 24)
#define TOUCH_END (4U << 24)
#define TOUCH_ADDRESS (0x38U << 1) // the HAL requires the 7-bit address to be shifted by one bit
#define TOUCH_PACKET_SIZE 7U
#define EVENT_PRESS_DOWN 0x00U
#define EVENT_CONTACT 0x80U
#define EVENT_LIFT_UP 0x40U
#define EVENT_NO_EVENT 0xC0U
#define GESTURE_NO_GESTURE 0x00U
#define X_POS_MSB (touch_data[3] & 0xFU)
#define X_POS_LSB (touch_data[4])
#define Y_POS_MSB (touch_data[5] & 0xFU)
#define Y_POS_LSB (touch_data[6])
#define X_Y_POS ((X_POS_MSB << 20) | (X_POS_LSB << 12) | (Y_POS_MSB << 8) | (Y_POS_LSB))
void touch_init(void);
uint32_t touch_read(void);
uint32_t touch_click(void);
#endif