diff options
Diffstat (limited to 'drivers/sensors/pmw3360.h')
| -rw-r--r-- | drivers/sensors/pmw3360.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/sensors/pmw3360.h b/drivers/sensors/pmw3360.h new file mode 100644 index 0000000000..124c62cf00 --- /dev/null +++ b/drivers/sensors/pmw3360.h @@ -0,0 +1,85 @@ +/* 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 "spi_master.h" + +#ifndef PMW3360_CPI +# define PMW3360_CPI 1600 +#endif + +#ifndef PMW3360_CLOCK_SPEED +# define PMW3360_CLOCK_SPEED 70000000 +#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 ROTATIONAL_TRANSFORM_ANGLE +# define ROTATIONAL_TRANSFORM_ANGLE 0x00 +#endif + +#ifndef PMW3360_CS_PIN +# error "No chip select pin defined -- missing PMW3360_CS_PIN" +#endif + +#ifdef CONSOLE_ENABLE +void print_byte(uint8_t byte); +#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_pmw_t; + + + +bool spi_start_adv(void); +void spi_stop_adv(void); +spi_status_t spi_write_adv(uint8_t reg_addr, uint8_t data); +uint8_t spi_read_adv(uint8_t reg_addr); +bool pmw_spi_init(void); +void pmw_set_cpi(uint16_t cpi); +uint16_t pmw_get_cpi(void); +void pmw_upload_firmware(void); +bool pmw_check_signature(void); +report_pmw_t pmw_read_burst(void); + + +#define degToRad(angleInDegrees) ((angleInDegrees)*M_PI / 180.0) +#define radToDeg(angleInRadians) ((angleInRadians)*180.0 / M_PI) +#define constrain(amt, low, high) ((amt) < (low) ? (low) : ((amt) > (high) ? (high) : (amt))) |