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- /* Copyright 2021 Alabastard (@Alabastard-64)
- * 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 PMW3389_CPI
- # define PMW3389_CPI 2000
- #endif
-
- #ifndef PMW3389_CLOCK_SPEED
- # define PMW3389_CLOCK_SPEED 2000000
- #endif
-
- #ifndef PMW3389_SPI_LSBFIRST
- # define PMW3389_SPI_LSBFIRST false
- #endif
-
- #ifndef PMW3389_SPI_MODE
- # define PMW3389_SPI_MODE 3
- #endif
-
- #ifndef PMW3389_SPI_DIVISOR
- # ifdef __AVR__
- # define PMW3389_SPI_DIVISOR (F_CPU / PMW3389_CLOCK_SPEED)
- # else
- # define PMW3389_SPI_DIVISOR 64
- # endif
- #endif
-
- #ifndef PMW3389_LIFTOFF_DISTANCE
- # define PMW3389_LIFTOFF_DISTANCE 0x02
- #endif
-
- #ifndef ROTATIONAL_TRANSFORM_ANGLE
- # define ROTATIONAL_TRANSFORM_ANGLE 0x00
- #endif
-
- #ifndef PMW3389_CS_PIN
- # error "No chip select pin defined -- missing PMW3389_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_pmw3389_t;
-
- bool pmw3389_init(void);
- void pmw3389_upload_firmware(void);
- bool pmw3389_check_signature(void);
- uint16_t pmw3389_get_cpi(void);
- void pmw3389_set_cpi(uint16_t cpi);
- /* Reads and clears the current delta values on the sensor */
- report_pmw3389_t pmw3389_read_burst(void);
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