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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
 * cycx_cfm.h	Cyclom 2X WAN Link Driver.
 *		Definitions for the Cyclom 2X Firmware Module (CFM).
 *
 * Author:	Arnaldo Carvalho de Melo <acme@conectiva.com.br>
 *
 * Copyright:	(c) 1998-2003 Arnaldo Carvalho de Melo
 *
 * Based on sdlasfm.h by Gene Kozin <74604.152@compuserve.com>
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 * ============================================================================
 * 1998/08/08	acme		Initial version.
 */
#ifndef _CYCX_CFM_H
#define _CYCX_CFM_H

/* Defines */

#define CFM_VERSION   2
#define CFM_SIGNATURE "CFM - Cyclades CYCX Firmware Module"

/* min/max */
#define CFM_IMAGE_SIZE 0x20000 /* max size of CYCX code image file */
#define CFM_DESCR_LEN  256     /* max length of description string */
#define CFM_MAX_CYCX   1       /* max number of compatible adapters */
#define CFM_LOAD_BUFSZ 0x400   /* buffer size for reset code (buffer_load) */

/* Firmware Commands */
#define GEN_POWER_ON 0x1280

#define GEN_SET_SEG  0x1401 /* boot segment setting. */
#define GEN_BOOT_DAT 0x1402 /* boot data. */
#define GEN_START    0x1403 /* board start. */
#define GEN_DEFPAR   0x1404 /* buffer length for boot. */

/* Adapter Types */
#define CYCX_2X 2
/* for now only the 2X is supported, no plans to support 8X or 16X */
#define CYCX_8X	 8
#define CYCX_16X 16

#define CFID_X25_2X 5200

/**
 *	struct cycx_fw_info - firmware module information.
 *	@codeid - firmware ID
 *	@version - firmware version number
 *	@adapter - compatible adapter types
 *	@memsize - minimum memory size
 *	@reserved - reserved
 *	@startoffs - entry point offset
 *	@winoffs - dual-port memory window offset
 *	@codeoffs - code load offset
 *	@codesize - code size
 *	@dataoffs - configuration data load offset
 *	@datasize - configuration data size
 */
struct cycx_fw_info {
	unsigned short codeid;
	unsigned short version;
	unsigned short adapter[CFM_MAX_CYCX];
	unsigned long memsize;
	unsigned short reserved[2];
	unsigned short startoffs;
	unsigned short winoffs;
	unsigned short codeoffs;
	unsigned long codesize;
	unsigned short dataoffs;
	unsigned long datasize;
};

/**
 *	struct cycx_firmware - CYCX firmware file structure
 *	@signature - CFM file signature
 *	@version - file format version
 *	@checksum - info + image
 *	@reserved - reserved
 *	@descr - description string
 *	@info - firmware module info
 *	@image - code image (variable size)
 */
struct cycx_firmware {
	char signature[80];
	unsigned short version;
	unsigned short checksum;
	unsigned short reserved[6];
	char descr[CFM_DESCR_LEN];
	struct cycx_fw_info info;
	unsigned char image[];
};

struct cycx_fw_header {
	unsigned long reset_size;
	unsigned long data_size;
	unsigned long code_size;
};
#endif /* _CYCX_CFM_H */