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Cirque trackpad features: circular scroll, inertial cursor (#17482)

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Daniel Kao 2022-07-12 21:17:40 -07:00 • committed by GitHub
parent 904ec0ce78
commit 5db705d054
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GPG key ID: 4AEE18F83AFDEB23
11 changed files with 1122 additions and 148 deletions
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14
drivers/sensors/cirque_pinnacle.h
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@ -2,6 +2,7 @@
#pragma once
#include "cirque_pinnacle_regdefs.h"
#include <stdint.h>
#include <stdbool.h>
@ -15,6 +16,11 @@
# define CIRQUE_PINNACLE_POSITION_MODE CIRQUE_PINNACLE_ABSOLUTE_MODE
#endif
#define CIRQUE_PINNACLE_DEFAULT_SCALE 1024
#ifndef CIRQUE_PINNACLE_DIAMETER_MM
# define CIRQUE_PINNACLE_DIAMETER_MM 40
#endif
// Coordinate scaling values
#ifndef CIRQUE_PINNACLE_X_LOWER
# define CIRQUE_PINNACLE_X_LOWER 127 // min "reachable" X value
@ -41,7 +47,7 @@
# include "i2c_master.h"
// Cirque's 7-bit I2C Slave Address
# ifndef CIRQUE_PINNACLE_ADDR
# define CIRQUE_PINNACLE_ADDR 0x2A
# define CIRQUE_PINNACLE_ADDR I2C_ADDRESS_DEFAULT
# endif
#elif defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_spi)
# include "spi_master.h"
@ -66,6 +72,10 @@
# endif
#endif
#define DIVIDE_UNSIGNED_ROUND(numerator, denominator) (((numerator) + ((denominator) / 2)) / (denominator))
#define CIRQUE_PINNACLE_INCH_TO_PX(inch) (DIVIDE_UNSIGNED_ROUND((inch) * (uint32_t)CIRQUE_PINNACLE_DIAMETER_MM * 10, 254))
#define CIRQUE_PINNACLE_PX_TO_INCH(px) (DIVIDE_UNSIGNED_ROUND((px) * (uint32_t)254, CIRQUE_PINNACLE_DIAMETER_MM * 10))
// Convenient way to store and access measurements
typedef struct {
bool valid; // true if valid data was read, false if no data was ready
@ -84,6 +94,8 @@ typedef struct {
} pinnacle_data_t;
void cirque_pinnacle_init(void);
void cirque_pinnacle_calibrate(void);
void cirque_pinnacle_cursor_smoothing(bool enable);
pinnacle_data_t cirque_pinnacle_read_data(void);
void cirque_pinnacle_scale_data(pinnacle_data_t* coordinates, uint16_t xResolution, uint16_t yResolution);
uint16_t cirque_pinnacle_get_scale(void);