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/*
 * ADIS16497.hpp
 *
 */

#pragma once

#include <drivers/device/spi.h>
#include <ecl/geo/geo.h>
#include <lib/conversion/rotation.h>
#include <lib/drivers/accelerometer/PX4Accelerometer.hpp>
#include <lib/drivers/gyroscope/PX4Gyroscope.hpp>
#include <perf/perf_counter.h>
#include <px4_platform_common/getopt.h>
#include <px4_platform_common/i2c_spi_buses.h>

// TODO : This is a copy of the NuttX CRC32 table
static constexpr uint32_t crc32_tab[] = {
	0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
	0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
	0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
	0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
	0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
	0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
	0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
	0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
	0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
	0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
	0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
	0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
	0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
	0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
	0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
	0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
	0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
	0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
	0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
	0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
	0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
	0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
	0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
	0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
	0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
	0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
	0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
	0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
	0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
	0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
	0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
	0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
};

class ADIS16497 : public device::SPI, public I2CSPIDriver<ADIS16497>
{
public:
	ADIS16497(I2CSPIBusOption bus_option, int bus, int32_t device, enum Rotation rotation, int bus_frequency,
		  spi_mode_e spi_mode, spi_drdy_gpio_t drdy_gpio);
	virtual ~ADIS16497();

	static I2CSPIDriverBase *instantiate(const BusCLIArguments &cli, const BusInstanceIterator &iterator,
					     int runtime_instance);
	static void print_usage();

	int		init() override;

	void			print_status() override;

	void			RunImpl();
protected:
	int		probe() override;
	void exit_and_cleanup() override;

private:

	PX4Accelerometer	_px4_accel;
	PX4Gyroscope		_px4_gyro;

	perf_counter_t		_sample_perf;
	perf_counter_t		_bad_transfers;

	const spi_drdy_gpio_t _drdy_gpio;

#pragma pack(push, 1)
	// Report conversation with the ADIS16497, including command byte.
	struct ADISReport {
		uint16_t	cmd;
		uint16_t	ZEROES;
		uint16_t	BURST_ID;
		uint16_t	SYS_E_FLAG;
		uint16_t	TEMP_OUT;
		uint16_t	X_GYRO_LOW;
		uint16_t	X_GYRO_OUT;
		uint16_t	Y_GYRO_LOW;
		uint16_t	Y_GYRO_OUT;
		uint16_t	Z_GYRO_LOW;
		uint16_t	Z_GYRO_OUT;
		uint16_t	X_ACCEL_LOW;
		uint16_t	X_ACCEL_OUT;
		uint16_t	Y_ACCEL_LOW;
		uint16_t	Y_ACCEL_OUT;
		uint16_t	Z_ACCEL_LOW;
		uint16_t	Z_ACCEL_OUT;
		uint16_t	DATA_CNT;
		uint16_t	CRC_LWR;
		uint16_t	CRC_UPR;
	};
#pragma pack(pop)

	/**
	 * Start automatic measurement.
	 */
	void			start();

	/**
	 * Reset chip.
	 *
	 * Resets the chip and measurements ranges, but not scale and offset.
	 */
	int			reset();

	static int		data_ready_interrupt(int irq, void *context, void *arg);

	/**
	 * Fetch measurements from the sensor and update the report buffers.
	 */
	int			measure();

	uint16_t		read_reg16(uint8_t reg);

	void			write_reg(uint8_t reg, uint8_t value);
	void			write_reg16(uint8_t reg, uint16_t value);

	// ADIS16497 onboard self test
	bool 			self_test();

	/**
	 * Set measurement range based on the sensor model.
	 */
	bool 			set_measurement_range(uint16_t model);

	uint32_t crc32(const uint16_t *data, size_t len) const
	{
		uint32_t crc = 0xffffffff;
		uint8_t tbl_idx;
		uint8_t b;

		while (len--) {
			b = *data;
			tbl_idx = crc ^ b;
			crc = (crc32_tab[tbl_idx] ^ (crc >> 8));

			b = *data >> 8;
			tbl_idx = crc ^ b;
			crc = (crc32_tab[tbl_idx] ^ (crc >> 8));

			data++;
		}

		return crc ^ 0xffffffff;
	}

};