3c58f98929
* PMW33XX drivers overhaul This combines the PMW3389 and PM3360 drivers as they only differ in the firmware blobs and CPI get and set functions. The following changes have been made: * PMW3389 now gets the same multi-sensor feature that is already available on the PMW3360. * Introduced a shared pmw33xx_report_t struct is now directly readable via SPI transactions instead of individual byte-sized reads, saving multiple copies and bitshift operations. * pmw33(89/60)_get_report functions had unreachable branches in their motion detection logic these have been simplied as much as possible. * The fast firmware upload option has been removed as this becomes obsolete by the newly introduced polled waiting functions for ChibiOS polled waiting * PMW33(60/89)_SPI_LSBFIRST and PMW33(60/89)_SPI_MODE config options have been removed as they don't need to be configurable. * All PMW3389 and PMW3360 defines have been unified to a PMW33XX prefix to reduce code duplication and make the defines interchangeable * Adjust keyboards to PMW33XX naming scheme
145 lines
4.9 KiB
C
145 lines
4.9 KiB
C
// Copyright 2022 Stefan Kerkmann (KarlK90)
|
|
// Copyright 2022 Ulrich Spörlein (@uqs)
|
|
// 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
|
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
#pragma once
|
|
|
|
#include <stdint.h>
|
|
#include "spi_master.h"
|
|
#include "util.h"
|
|
|
|
#if defined(POINTING_DEVICE_DRIVER_pmw3360)
|
|
# include "pmw3360.h"
|
|
#elif defined(POINTING_DEVICE_DRIVER_pmw3389)
|
|
# include "pmw3389.h"
|
|
#endif
|
|
|
|
typedef struct __attribute__((packed)) {
|
|
union {
|
|
struct {
|
|
bool capture_from_raw_data : 1; // FRAME_RData_1st
|
|
uint8_t operation_mode : 2; // OP_MODE
|
|
bool is_lifted : 1; // Lift_stat
|
|
bool raw_data_grab_is_raw_data : 1; // RData_1st
|
|
uint8_t _reserved : 2; // 1 + Reserved
|
|
bool is_motion : 1; // MOT
|
|
} b;
|
|
uint8_t w;
|
|
} motion;
|
|
uint8_t observation;
|
|
int16_t delta_x; // displacement on x directions. Unit: Count. (CPI * Count = Inch value)
|
|
int16_t delta_y; // displacement on y directions.
|
|
} pmw33xx_report_t;
|
|
|
|
_Static_assert(sizeof(pmw33xx_report_t) == 6, "pmw33xx_report_t must be 6 bytes in size");
|
|
_Static_assert(sizeof((pmw33xx_report_t){0}.motion) == 1, "pmw33xx_report_t.motion must be 1 byte in size");
|
|
|
|
#if !defined(PMW33XX_CLOCK_SPEED)
|
|
# define PMW33XX_CLOCK_SPEED 2000000
|
|
#endif
|
|
|
|
#if !defined(PMW33XX_SPI_DIVISOR)
|
|
# ifdef __AVR__
|
|
# define PMW33XX_SPI_DIVISOR (F_CPU / PMW33XX_CLOCK_SPEED)
|
|
# else
|
|
# define PMW33XX_SPI_DIVISOR 64
|
|
# endif
|
|
#endif
|
|
|
|
#if !defined(PMW33XX_LIFTOFF_DISTANCE)
|
|
# define PMW33XX_LIFTOFF_DISTANCE 0x02
|
|
#endif
|
|
|
|
#if !defined(ROTATIONAL_TRANSFORM_ANGLE)
|
|
# define ROTATIONAL_TRANSFORM_ANGLE 0x00
|
|
#endif
|
|
|
|
// Support single and plural spellings
|
|
#ifndef PMW33XX_CS_PINS
|
|
# ifndef PMW33XX_CS_PIN
|
|
# error "No chip select pin defined -- missing PMW33XX_CS_PIN or PMW33XX_CS_PINS"
|
|
# else
|
|
# define PMW33XX_CS_PINS \
|
|
{ PMW33XX_CS_PIN }
|
|
# endif
|
|
#endif
|
|
|
|
#if PMW33XX_CPI > PMW33XX_CPI_MAX || PMW33XX_CPI < PMW33XX_CPI_MIN || (PMW33XX_CPI % PMW33XX_CPI_STEP) != 0U
|
|
# pragma message "PMW33XX_CPI has to be in the range of " STR(PMW33XX_CPI_MAX) "-" STR(PMW33XX_CPI_MIN) " in increments of " STR(PMW33XX_CPI_STEP) ". But it is " STR(PMW33XX_CPI) "."
|
|
# error Use correct PMW33XX_CPI value.
|
|
#endif
|
|
|
|
#define CONSTRAIN(amt, low, high) ((amt) < (low) ? (low) : ((amt) > (high) ? (high) : (amt)))
|
|
|
|
/**
|
|
* @brief Initializes the given sensor so it is in a working state and ready to
|
|
* be polled for data.
|
|
*
|
|
* @param sensor Index of the sensors chip select pin
|
|
* @return true Initialization was a success
|
|
* @return false Initialization failed, do not proceed operation
|
|
*/
|
|
bool __attribute__((cold)) pmw33xx_init(uint8_t sensor);
|
|
|
|
/**
|
|
* @brief Gets the currently set CPI value from the sensor. CPI is often
|
|
* refereed to as the sensors sensitivity.
|
|
*
|
|
* @param sensor Index of the sensors chip select pin
|
|
* @return uint16_t Current CPI value of the sensor
|
|
*/
|
|
uint16_t pmw33xx_get_cpi(uint8_t sensor);
|
|
|
|
/**
|
|
* @brief Sets the given CPI value for the given PMW33XX sensor. CIP is often
|
|
* refereed to as the sensors sensitivity. Values outside of the allow range are
|
|
* constrained into legal values.
|
|
*
|
|
* @param sensor Index of the sensors chip select pin
|
|
* @param cpi CPI value to set, legal range depends on the PMW sensor type
|
|
*/
|
|
void pmw33xx_set_cpi(uint8_t sensor, uint16_t cpi);
|
|
|
|
/**
|
|
* @brief Sets the given CPI value to all registered PMW33XX sensors. CPI is
|
|
* often refereed to as the sensors sensitivity. Values outside of the allow
|
|
* range are constrained into legal values.
|
|
*
|
|
* @param sensor Index of the sensors chip select pin
|
|
* @param cpi CPI value to set, legal range depends on the PMW sensor type
|
|
*/
|
|
void pmw33xx_set_cpi_all_sensors(uint16_t cpi);
|
|
|
|
/**
|
|
* @brief Reads and clears the current delta, and motion register values on the
|
|
* given sensor.
|
|
*
|
|
* @param sensor Index of the sensors chip select pin
|
|
* @return pmw33xx_report_t Current values of the sensor, if errors occurred all
|
|
* fields are set to zero
|
|
*/
|
|
pmw33xx_report_t pmw33xx_read_burst(uint8_t sensor);
|
|
|
|
/**
|
|
* @brief Read one byte of data from the given register on the sensor
|
|
*
|
|
* @param sensor Index of the sensors chip select pin
|
|
* @param reg_addr Register address to read from
|
|
* @return uint8_t
|
|
*/
|
|
uint8_t pmw33xx_read(uint8_t sensor, uint8_t reg_addr);
|
|
|
|
/**
|
|
* @brief Writes one byte of data to the given register on the sensor
|
|
*
|
|
* @param sensor Index of the sensors chip select pin
|
|
* @param reg_addr Registers address to write to
|
|
* @param data Data to write to the register
|
|
* @return true Write was a success
|
|
* @return false Write failed, do not proceed operation
|
|
*/
|
|
bool pmw33xx_write(uint8_t sensor, uint8_t reg_addr, uint8_t data);
|