main.h

WinAoE is an open source GPLv3 driver for using AoE (ATA over Ethernet) on Microsoft Windows

/*
  Copyright 2006-2008, V.
  For contact information, see http://winaoe.org/

  This file is part of WinAoE.

  WinAoE 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 3 of the License, or
  (at your option) any later version.

  WinAoE is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with WinAoE.  If not, see <http://www.gnu.org/licenses/>.
*/

asm(".code16gcc");
#ifndef _C_H
#define _C_H

#define MAXPACKETSIZE 1518
#define SECTORSIZE 512
#define PROMPTTIMEOUT (3 * 18.206)	// in ticks (18.206 ticks / sec)
#define RECEIVETIMEOUT 2		// in ticks

#define PNP_SIGNATURE 0x506e5024	// PnP$
#define ROM_SIGNATURE 0xaa55

#define AOE_PROTOCOL 0x88a2
#define AOE_VERSION 1

typedef struct s_abft {
  unsigned int signature;		// 0x54464261 (aBFT)
  unsigned int length;
  unsigned char revision;
  unsigned char checksum;
  unsigned char oemid[6];
  unsigned char oemtableid[8];
  unsigned char reserved1[12];
  unsigned short major;
  unsigned char minor;
  unsigned char reserved2;
  unsigned char clientmac[6];
  unsigned char reserved3[15];		// for alignment on segment
} __attribute__((__packed__)) t_abft;
                  
typedef struct s_pnp {
  unsigned int signature;
  unsigned char version;
  unsigned char length;
  unsigned short control;
  unsigned char checksum;
  unsigned int flags;
  struct {
    unsigned short offset;
    unsigned short segment;
  } __attribute__((__packed__)) RMentry;
  struct {
    unsigned short offset;
    unsigned int segment;
  } __attribute__((__packed__)) PMentry;
  unsigned int identifier;
  unsigned short RMdatasegment;
  unsigned int PMdatasegment;
} __attribute__((__packed__)) t_pnp;
						
typedef struct s_aoe {
  unsigned char dst[6];
  unsigned char src[6];
  unsigned short protocol;

  unsigned int flags:4;
  unsigned int ver:4;
  unsigned char error;
  unsigned short major;
  unsigned char minor;
  unsigned char command;
  unsigned int tag;

  unsigned char aflags;
  union {
    unsigned char err;
    unsigned char feature;
  };
  unsigned char count;
  union {
    unsigned char cmd;
    unsigned char status;
  };

  unsigned char lba0;
  unsigned char lba1;
  unsigned char lba2;
  unsigned char lba3;
  unsigned char lba4;
  unsigned char lba5;
  unsigned short reserved;

  unsigned char data[2 * SECTORSIZE];
} __attribute__((__packed__)) t_aoe;

typedef struct s_mbr {
  unsigned char reserved[446];
  struct {
    unsigned char active;
    unsigned char starthead;
    unsigned startsector:6;
    unsigned startcylinderhigh:2;
    unsigned char startcylinderlow;
    unsigned char type;
    unsigned char endhead;
    unsigned endsector:6;
    unsigned endcylinderhigh:2;
    unsigned char endcylinderlow;
    unsigned int startlba;
    unsigned int size;
  } __attribute__((__packed__)) partition[4];
  unsigned short magic;
} __attribute__((__packed__)) t_mbr;

typedef struct s_INT13_EXTENDED_READWRITE {
  unsigned char structsize;
  unsigned char reserved;
  unsigned short count;
  unsigned short bufferoffset;
  unsigned short buffersegment;
  unsigned long long lba;
} __attribute__((__packed__)) t_INT13_EXTENDED_READWRITE;

typedef struct s_INT13_EXTENDED_GET_PARAMETERS {
  unsigned short structsize;
  unsigned short flags;
  unsigned int cylinders;
  unsigned int heads;
  unsigned int sectors;
  unsigned long long disksize;
  unsigned short sectorsize;
} __attribute__((__packed__)) t_INT13_EXTENDED_GET_PARAMETERS;

typedef struct s_INT13_CDROM_EMULATION {
  unsigned char packetsize;
  unsigned char bootmediatype;
  unsigned char drivenumber;
  unsigned char controllernumber;
  unsigned int lbasize;
  unsigned short drivespecification;
  unsigned short cachesegment;
  unsigned short loadsegment;
  unsigned short sectorstoload;
  unsigned char cylinderslow;
  unsigned char sectors_cylindershigh;
  unsigned char heads;
} __attribute__((__packed__)) t_INT13_CDROM_EMULATION;
#endif