Cirque trackpad features: circular scroll, inertial cursor (#17482)
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11 changed files with 1122 additions and 148 deletions
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@ -2,6 +2,7 @@
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#pragma once
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#include "cirque_pinnacle_regdefs.h"
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#include <stdint.h>
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#include <stdbool.h>
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@ -15,6 +16,11 @@
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# define CIRQUE_PINNACLE_POSITION_MODE CIRQUE_PINNACLE_ABSOLUTE_MODE
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#endif
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#define CIRQUE_PINNACLE_DEFAULT_SCALE 1024
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#ifndef CIRQUE_PINNACLE_DIAMETER_MM
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# define CIRQUE_PINNACLE_DIAMETER_MM 40
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#endif
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// Coordinate scaling values
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#ifndef CIRQUE_PINNACLE_X_LOWER
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# define CIRQUE_PINNACLE_X_LOWER 127 // min "reachable" X value
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# include "i2c_master.h"
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// Cirque's 7-bit I2C Slave Address
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# ifndef CIRQUE_PINNACLE_ADDR
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# define CIRQUE_PINNACLE_ADDR 0x2A
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# define CIRQUE_PINNACLE_ADDR I2C_ADDRESS_DEFAULT
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# endif
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#elif defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_spi)
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# include "spi_master.h"
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@ -66,6 +72,10 @@
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# endif
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#endif
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#define DIVIDE_UNSIGNED_ROUND(numerator, denominator) (((numerator) + ((denominator) / 2)) / (denominator))
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#define CIRQUE_PINNACLE_INCH_TO_PX(inch) (DIVIDE_UNSIGNED_ROUND((inch) * (uint32_t)CIRQUE_PINNACLE_DIAMETER_MM * 10, 254))
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#define CIRQUE_PINNACLE_PX_TO_INCH(px) (DIVIDE_UNSIGNED_ROUND((px) * (uint32_t)254, CIRQUE_PINNACLE_DIAMETER_MM * 10))
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// Convenient way to store and access measurements
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typedef struct {
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bool valid; // true if valid data was read, false if no data was ready
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@ -84,6 +94,8 @@ typedef struct {
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} pinnacle_data_t;
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void cirque_pinnacle_init(void);
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void cirque_pinnacle_calibrate(void);
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void cirque_pinnacle_cursor_smoothing(bool enable);
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pinnacle_data_t cirque_pinnacle_read_data(void);
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void cirque_pinnacle_scale_data(pinnacle_data_t* coordinates, uint16_t xResolution, uint16_t yResolution);
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uint16_t cirque_pinnacle_get_scale(void);
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