76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
|
|
* Copyright 2019 Sunjun Kim
|
|
* Copyright 2020 Ploopy Corporation
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <stdint.h>
|
|
|
|
#ifndef PMW3360_CPI
|
|
# define PMW3360_CPI 1600
|
|
#endif
|
|
|
|
#ifndef PMW3360_CLOCK_SPEED
|
|
# define PMW3360_CLOCK_SPEED 2000000
|
|
#endif
|
|
|
|
#ifndef PMW3360_SPI_LSBFIRST
|
|
# define PMW3360_SPI_LSBFIRST false
|
|
#endif
|
|
|
|
#ifndef PMW3360_SPI_MODE
|
|
# define PMW3360_SPI_MODE 3
|
|
#endif
|
|
|
|
#ifndef PMW3360_SPI_DIVISOR
|
|
# ifdef __AVR__
|
|
# define PMW3360_SPI_DIVISOR (F_CPU / PMW3360_CLOCK_SPEED)
|
|
# else
|
|
# define PMW3360_SPI_DIVISOR 64
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef PMW3360_LIFTOFF_DISTANCE
|
|
# define PMW3360_LIFTOFF_DISTANCE 0x02
|
|
#endif
|
|
|
|
#ifndef ROTATIONAL_TRANSFORM_ANGLE
|
|
# define ROTATIONAL_TRANSFORM_ANGLE 0x00
|
|
#endif
|
|
|
|
#ifndef PMW3360_CS_PIN
|
|
# error "No chip select pin defined -- missing PMW3360_CS_PIN"
|
|
#endif
|
|
|
|
typedef struct {
|
|
int8_t motion;
|
|
bool isMotion; // True if a motion is detected.
|
|
bool isOnSurface; // True when a chip is on a surface
|
|
int16_t dx; // displacement on x directions. Unit: Count. (CPI * Count = Inch value)
|
|
int8_t mdx;
|
|
int16_t dy; // displacement on y directions.
|
|
int8_t mdy;
|
|
} report_pmw3360_t;
|
|
|
|
bool pmw3360_init(void);
|
|
void pmw3360_upload_firmware(void);
|
|
bool pmw3360_check_signature(void);
|
|
uint16_t pmw3360_get_cpi(void);
|
|
void pmw3360_set_cpi(uint16_t cpi);
|
|
/* Reads and clears the current delta values on the sensor */
|
|
report_pmw3360_t pmw3360_read_burst(void);
|