// SPDX-License-Identifier: GPL-2.0-only
#ifndef GXFP_PROTOCOL_H
#define GXFP_PROTOCOL_H

#include <stddef.h>
#include <stdint.h>

#define GXFP_MP_COMMAND			0xA0
#define GXFP_MP_RX_COMMAND		0x0A
#define GXFP_GOODIX_CHECKSUM_TARGET	0xAA
#define GXFP_GOODIX_ACK			0xB0
#define GXFP_CMD_IMAGE_CAPTURE		0x20

struct gxfp_frame_view {
	uint8_t command;
	const uint8_t *payload;
	size_t payload_len;
	uint8_t checksum;
};

int gxfp_frame_build(uint8_t command,
		     const void *payload, size_t payload_len,
		     uint8_t *output, size_t output_capacity,
		     size_t *output_len);

int gxfp_frame_parse(const void *frame, size_t frame_len,
		     struct gxfp_frame_view *view);

#endif