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// Copyright (c) 2018 Cirque Corp. Restrictions apply. See: www.cirque.com/sw-license
#pragma once
#include "cirque_pinnacle_regdefs.h"
#include <stdint.h>
#include <stdbool.h>
#ifndef CIRQUE_PINNACLE_TIMEOUT
# define CIRQUE_PINNACLE_TIMEOUT 20 // I2C timeout in milliseconds
#endif
#define CIRQUE_PINNACLE_ABSOLUTE_MODE 1
#define CIRQUE_PINNACLE_RELATIVE_MODE 0
#ifndef CIRQUE_PINNACLE_POSITION_MODE
# 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
#if CIRQUE_PINNACLE_POSITION_MODE
// Coordinate scaling values
# ifndef CIRQUE_PINNACLE_X_LOWER
# define CIRQUE_PINNACLE_X_LOWER 127 // min "reachable" X value
# endif
# ifndef CIRQUE_PINNACLE_X_UPPER
# define CIRQUE_PINNACLE_X_UPPER 1919 // max "reachable" X value
# endif
# ifndef CIRQUE_PINNACLE_Y_LOWER
# define CIRQUE_PINNACLE_Y_LOWER 63 // min "reachable" Y value
# endif
# ifndef CIRQUE_PINNACLE_Y_UPPER
# define CIRQUE_PINNACLE_Y_UPPER 1471 // max "reachable" Y value
# endif
# ifndef CIRQUE_PINNACLE_X_RANGE
# define CIRQUE_PINNACLE_X_RANGE (CIRQUE_PINNACLE_X_UPPER - CIRQUE_PINNACLE_X_LOWER)
# endif
# ifndef CIRQUE_PINNACLE_Y_RANGE
# define CIRQUE_PINNACLE_Y_RANGE (CIRQUE_PINNACLE_Y_UPPER - CIRQUE_PINNACLE_Y_LOWER)
# endif
# if defined(POINTING_DEVICE_GESTURES_SCROLL_ENABLE)
# define CIRQUE_PINNACLE_CIRCULAR_SCROLL_ENABLE
# endif
#else
# define CIRQUE_PINNACLE_X_RANGE 256
# define CIRQUE_PINNACLE_Y_RANGE 256
# if defined(POINTING_DEVICE_GESTURES_SCROLL_ENABLE)
# define CIRQUE_PINNACLE_SIDE_SCROLL_ENABLE
# endif
#endif
#if !defined(POINTING_DEVICE_TASK_THROTTLE_MS)
# define POINTING_DEVICE_TASK_THROTTLE_MS 10 // Cirque Pinnacle in normal operation produces data every 10ms. Advanced configuration for pen/stylus usage might require lower values.
#endif
#if defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_i2c)
# include "i2c_master.h"
// Cirque's 7-bit I2C Slave Address
# ifndef CIRQUE_PINNACLE_ADDR
# define CIRQUE_PINNACLE_ADDR I2C_ADDRESS_DEFAULT
# endif
#elif defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_spi)
# include "spi_master.h"
# ifndef CIRQUE_PINNACLE_CLOCK_SPEED
# define CIRQUE_PINNACLE_CLOCK_SPEED 10000000
# endif
# ifndef CIRQUE_PINNACLE_SPI_LSBFIRST
# define CIRQUE_PINNACLE_SPI_LSBFIRST false
# endif
# ifndef CIRQUE_PINNACLE_SPI_MODE
# define CIRQUE_PINNACLE_SPI_MODE 1
# endif
# ifndef CIRQUE_PINNACLE_SPI_DIVISOR
# ifdef __AVR__
# define CIRQUE_PINNACLE_SPI_DIVISOR (F_CPU / CIRQUE_PINNACLE_CLOCK_SPEED)
# else
# define CIRQUE_PINNACLE_SPI_DIVISOR 64
# endif
# ifndef CIRQUE_PINNACLE_SPI_CS_PIN
# ifdef POINTING_DEVICE_CS_PIN
# define CIRQUE_PINNACLE_SPI_CS_PIN POINTING_DEVICE_CS_PIN
# else
# error "No Chip Select pin has been defined -- missing POINTING_DEVICE_CS_PIN or CIRQUE_PINNACLE_SPI_CS_PIN define"
# endif
# endif
# 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
#if CIRQUE_PINNACLE_POSITION_MODE
uint16_t xValue;
uint16_t yValue;
uint16_t zValue;
uint8_t buttonFlags;
bool touchDown;
#else
int16_t xDelta;
int16_t yDelta;
int8_t wheelCount;
uint8_t buttons;
#endif
} 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);
void cirque_pinnacle_set_scale(uint16_t scale);
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