src/sbox.hpp

Idź do dokumentacji tego pliku.

#ifndef PCI_H
#define PCI_H

/*
** Support for NE2000 PCI clones added David Monro June 1997
** Generalised for other PCI NICs by Ken Yap July 1997
**
** Most of this is taken from:
**
** /usr/src/linux/drivers/pci/pci.c
** /usr/src/linux/include/linux/pci.h
** /usr/src/linux/arch/i386/bios32.c
** /usr/src/linux/include/linux/bios32.h
** /usr/src/linux/drivers/net/ne.c
*/

/*
 * 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, or (at
 * your option) any later version.
 */

#define PCI_COMMAND_IO                  0x1     /* Enable response in I/O space */
#define PCI_COMMAND_MEM                 0x2     /* Enable response in mem space */
#define PCI_COMMAND_MASTER              0x4     /* Enable bus mastering */
#define PCI_LATENCY_TIMER               0x0d    /* 8 bits */

#define PCIBIOS_PCI_FUNCTION_ID         0xb1XX
#define PCIBIOS_PCI_BIOS_PRESENT        0xb101
#define PCIBIOS_FIND_PCI_DEVICE         0xb102
#define PCIBIOS_FIND_PCI_CLASS_CODE     0xb103
#define PCIBIOS_GENERATE_SPECIAL_CYCLE  0xb106
#define PCIBIOS_READ_CONFIG_BYTE        0xb108
#define PCIBIOS_READ_CONFIG_WORD        0xb109
#define PCIBIOS_READ_CONFIG_DWORD       0xb10a
#define PCIBIOS_WRITE_CONFIG_BYTE       0xb10b
#define PCIBIOS_WRITE_CONFIG_WORD       0xb10c
#define PCIBIOS_WRITE_CONFIG_DWORD      0xb10d

#define PCI_VENDOR_ID           0x00    /* 16 bits */
#define PCI_DEVICE_ID           0x02    /* 16 bits */
#define PCI_COMMAND             0x04    /* 16 bits */

#define PCI_REVISION            0x08    /* 8 bits  */
#define PCI_CLASS_CODE          0x0b    /* 8 bits */
#define PCI_SUBCLASS_CODE       0x0a    /* 8 bits */
#define PCI_HEADER_TYPE         0x0e    /* 8 bits */

#define PCI_BASE_ADDRESS_0      0x10    /* 32 bits */
#define PCI_BASE_ADDRESS_1      0x14    /* 32 bits */
#define PCI_BASE_ADDRESS_2      0x18    /* 32 bits */
#define PCI_BASE_ADDRESS_3      0x1c    /* 32 bits */
#define PCI_BASE_ADDRESS_4      0x20    /* 32 bits */
#define PCI_BASE_ADDRESS_5      0x24    /* 32 bits */

#ifndef PCI_BASE_ADDRESS_IO_MASK
#define PCI_BASE_ADDRESS_IO_MASK       (~0x03)
#endif
#define PCI_BASE_ADDRESS_SPACE_IO       0x01
#define PCI_ROM_ADDRESS         0x30    /* 32 bits */
#define PCI_ROM_ADDRESS_ENABLE  0x01    /* Write 1 to enable ROM,
                                           bits 31..11 are address,
                                           10..2 are reserved */

#define PCI_FUNC(devfn)           ((devfn) & 0x07)

#define BIOS32_SIGNATURE        (('_' << 0) + ('3' << 8) + ('2' << 16) + ('_' << 24))

/* PCI signature: "PCI " */
#define PCI_SIGNATURE           (('P' << 0) + ('C' << 8) + ('I' << 16) + (' ' << 24))

/* PCI service signature: "$PCI" */
#define PCI_SERVICE             (('$' << 0) + ('P' << 8) + ('C' << 16) + ('I' << 24))

union bios32 {
        struct {
                unsigned long signature;        /* _32_ */
                unsigned long entry;            /* 32 bit physical address */
                unsigned char revision;         /* Revision level, 0 */
                unsigned char length;           /* Length in paragraphs should be 01 */
                unsigned char checksum;         /* All bytes must add up to zero */
                unsigned char reserved[5];      /* Must be zero */
        } fields;
        char chars[16];
};

#define KERN_CODE_SEG   0x8     /* This _MUST_ match start.S */

/* Stuff for asm */
#define save_flags(x) \
__asm__ __volatile__("pushfl ; popl %0":"=g" (x): /* no input */ :"memory")

#define cli() __asm__ __volatile__ ("cli": : :"memory")

#define restore_flags(x) \
__asm__ __volatile__("pushl %0 ; popfl": /* no output */ :"g" (x):"memory")

#define PCI_VENDOR_ID_ADMTEK            0x1317
#define PCI_DEVICE_ID_ADMTEK_0985       0x0985
#define PCI_VENDOR_ID_REALTEK           0x10ec
#define PCI_DEVICE_ID_REALTEK_8029      0x8029
#define PCI_DEVICE_ID_REALTEK_8139      0x8139
#define PCI_VENDOR_ID_WINBOND2          0x1050
#define PCI_DEVICE_ID_WINBOND2_89C940   0x0940
#define PCI_DEVICE_ID_WINBOND2_89C840   0x0840
#define PCI_VENDOR_ID_COMPEX            0x11f6
#define PCI_DEVICE_ID_COMPEX_RL2000     0x1401
#define PCI_DEVICE_ID_COMPEX_RL100ATX   0x2011
#define PCI_VENDOR_ID_KTI               0x8e2e
#define PCI_DEVICE_ID_KTI_ET32P2        0x3000
#define PCI_VENDOR_ID_NETVIN            0x4a14
#define PCI_DEVICE_ID_NETVIN_NV5000SC   0x5000
#define PCI_VENDOR_ID_HOLTEK            0x12c3
#define PCI_DEVICE_ID_HOLTEK_HT80232    0x0058
#define PCI_VENDOR_ID_3COM              0x10b7
#define PCI_DEVICE_ID_3COM_3C590        0x5900
#define PCI_DEVICE_ID_3COM_3C595        0x5950
#define PCI_DEVICE_ID_3COM_3C595_1      0x5951
#define PCI_DEVICE_ID_3COM_3C595_2      0x5952
#define PCI_DEVICE_ID_3COM_3C900TPO     0x9000
#define PCI_DEVICE_ID_3COM_3C900COMBO   0x9001
#define PCI_DEVICE_ID_3COM_3C905TX      0x9050
#define PCI_DEVICE_ID_3COM_3C905T4      0x9051
#define PCI_DEVICE_ID_3COM_3C905B_TX    0x9055
#define PCI_DEVICE_ID_3COM_3C905C_TXM   0x9200
#define PCI_VENDOR_ID_INTEL             0x8086
#define PCI_DEVICE_ID_INTEL_82557       0x1229
#define PCI_DEVICE_ID_INTEL_82559ER     0x1209
#define PCI_DEVICE_ID_INTEL_ID1029      0x1029
#define PCI_DEVICE_ID_INTEL_ID1030      0x1030
#define PCI_DEVICE_ID_INTEL_82562       0x2449
#define PCI_VENDOR_ID_AMD               0x1022
#define PCI_DEVICE_ID_AMD_LANCE         0x2000
#define PCI_VENDOR_ID_AMD_HOMEPNA       0x1022
#define PCI_DEVICE_ID_AMD_HOMEPNA       0x2001
#define PCI_VENDOR_ID_SMC_1211          0x1113
#define PCI_DEVICE_ID_SMC_1211          0x1211
#define PCI_VENDOR_ID_DEC               0x1011
#define PCI_DEVICE_ID_DEC_TULIP         0x0002
#define PCI_DEVICE_ID_DEC_TULIP_FAST    0x0009
#define PCI_DEVICE_ID_DEC_TULIP_PLUS    0x0014
#define PCI_DEVICE_ID_DEC_21142         0x0019
#define PCI_VENDOR_ID_SMC               0x10B8
#ifndef PCI_DEVICE_ID_SMC_EPIC100
# define PCI_DEVICE_ID_SMC_EPIC100      0x0005
#endif
#define PCI_VENDOR_ID_MACRONIX          0x10d9
#define PCI_DEVICE_ID_MX987x5           0x0531
#define PCI_VENDOR_ID_LINKSYS           0x11AD
#define PCI_DEVICE_ID_LC82C115          0xC115
#define PCI_VENDOR_ID_VIATEC            0x1106
#define PCI_DEVICE_ID_VIA_RHINE_I       0x3043
#define PCI_DEVICE_ID_VIA_VT6102        0x3065
#define PCI_DEVICE_ID_VIA_86C100A       0x6100
#define PCI_VENDOR_ID_DAVICOM           0x1282
#define PCI_DEVICE_ID_DM9009            0x9009
#define PCI_DEVICE_ID_DM9102            0x9102
#define PCI_VENDOR_ID_SIS               0x1039
#define PCI_DEVICE_ID_SIS900            0x0900   
#define PCI_DEVICE_ID_SIS7016           0x7016  
#define PCI_VENDOR_ID_DLINK             0x1186
#define PCI_DEVICE_ID_DFE530TXP         0x1300
#define PCI_VENDOR_ID_NS                0x100B
#define PCI_DEVICE_ID_DP83815           0x0020
#define PCI_VENDOR_ID_OLICOM            0x108d
#define PCI_DEVICE_ID_OLICOM_OC3136     0x0001
#define PCI_DEVICE_ID_OLICOM_OC2315     0x0011
#define PCI_DEVICE_ID_OLICOM_OC2325     0x0012
#define PCI_DEVICE_ID_OLICOM_OC2183     0x0013
#define PCI_DEVICE_ID_OLICOM_OC2326     0x0014
#define PCI_DEVICE_ID_OLICOM_OC6151     0x0021

struct pci_device {
        unsigned short  vendor, dev_id;
        const char      *name;
        unsigned int    membase;
        unsigned short  ioaddr;
        unsigned char   devfn;
        unsigned char   bus;
};

extern void     eth_pci_init(struct pci_device *);

extern int pcibios_read_config_byte(unsigned int bus, unsigned int device_fn, unsigned int where, unsigned char *value);
extern int pcibios_write_config_byte (unsigned int bus, unsigned int device_fn, unsigned int where, unsigned char value);
extern int pcibios_read_config_word(unsigned int bus, unsigned int device_fn, unsigned int where, unsigned short *value);
extern int pcibios_write_config_word (unsigned int bus, unsigned int device_fn, unsigned int where, unsigned short value);
extern int pcibios_read_config_dword(unsigned int bus, unsigned int device_fn, unsigned int where, unsigned int *value);
extern int pcibios_write_config_dword(unsigned int bus, unsigned int device_fn, unsigned int where, unsigned int value);
void adjust_pci_device(struct pci_device *p);
#endif  /* PCI_H */
/*
 *  GRUB  --  GRand Unified Bootloader
 *  Copyright (C) 2000,2001,2002  Free Software Foundation, Inc.
 *
 *  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.
 *
 *  This program 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 this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/* RULE: You must define the macro ``GRUB'' when including this header
   file in GRUB code.  */

/* Based on "src/etherboot.h" in etherboot-5.0.5.  */

/**************************************************************************
ETHERBOOT -  BOOTP/TFTP Bootstrap Program

Author: Martin Renters
  Date: Dec/93

**************************************************************************/

/* Include GRUB-specific macros and prototypes here.  */
#include <shared.h>

/* FIXME: For now, enable the DHCP support. Perhaps I should segregate
   the DHCP support from the BOOTP support, and permit both to
   co-exist.  */
#undef NO_DHCP_SUPPORT

/* In GRUB, the relocated address in Etherboot doesn't have any sense.
   Just define it as a bogus value.  */
#define RELOC   0

/* FIXME: Should be an option.  */
#define BACKOFF_LIMIT   7

#include <osdep.h>

#define CTRL_C          3

#ifndef MAX_TFTP_RETRIES
# define MAX_TFTP_RETRIES       20
#endif

#ifndef MAX_BOOTP_RETRIES
# define MAX_BOOTP_RETRIES      20
#endif

#define MAX_BOOTP_EXTLEN        (ETH_FRAME_LEN - ETH_HLEN - \
                                 sizeof (struct bootp_t))

#ifndef MAX_ARP_RETRIES
# define MAX_ARP_RETRIES        20
#endif

#ifndef MAX_RPC_RETRIES
# define MAX_RPC_RETRIES        20
#endif

#define TICKS_PER_SEC           18

/* Inter-packet retry in ticks */
#define TIMEOUT                 (10 * TICKS_PER_SEC)

/* These settings have sense only if compiled with -DCONGESTED */
/* total retransmission timeout in ticks */
#define TFTP_TIMEOUT            (30 * TICKS_PER_SEC)
/* packet retransmission timeout in ticks */
#define TFTP_REXMT              (3 * TICKS_PER_SEC)

#ifndef NULL
# define NULL                   ((void *) 0)
#endif

/*
   I'm moving towards the defined names in linux/if_ether.h for clarity.
   The confusion between 60/64 and 1514/1518 arose because the NS8390
   counts the 4 byte frame checksum in the incoming packet, but not
   in the outgoing packet. 60/1514 are the correct numbers for most
   if not all of the other NIC controllers. I will be retiring the
   64/1518 defines in the lead-up to 5.0.
*/

#define ETH_ALEN                6       /* Size of Ethernet address */
#define ETH_HLEN                14      /* Size of ethernet header */
#define ETH_ZLEN                60      /* Minimum packet */
/*#define ETH_MIN_PACKET                64*/
#define ETH_FRAME_LEN           1514    /* Maximum packet */
/*#define ETH_MAX_PACKET                1518*/
/* Because some DHCP/BOOTP servers don't treat the maximum length the same
   as Etherboot, subtract the size of an IP header and that of an UDP
   header.  */
#define ETH_MAX_MTU             (ETH_FRAME_LEN - ETH_HLEN \
                                - sizeof (struct iphdr) \
                                - sizeof (struct udphdr))

#define ARP_CLIENT      0
#define ARP_SERVER      1
#define ARP_GATEWAY     2
#define ARP_ROOTSERVER  3
#define ARP_SWAPSERVER  4
#define MAX_ARP         ARP_SWAPSERVER+1

#define RARP_REQUEST    3
#define RARP_REPLY      4

#define IP              0x0800
#define ARP             0x0806
#define RARP            0x8035

#define BOOTP_SERVER    67
#define BOOTP_CLIENT    68
#define TFTP_PORT       69
#define SUNRPC_PORT     111

#define IP_UDP          17
/* Same after going through htonl */
#define IP_BROADCAST    0xFFFFFFFF

#define ARP_REQUEST     1
#define ARP_REPLY       2

#define BOOTP_REQUEST   1
#define BOOTP_REPLY     2

#define TAG_LEN(p)              (*((p) + 1))
#define RFC1533_COOKIE          99, 130, 83, 99
#define RFC1533_PAD             0
#define RFC1533_NETMASK         1
#define RFC1533_TIMEOFFSET      2
#define RFC1533_GATEWAY         3
#define RFC1533_TIMESERVER      4
#define RFC1533_IEN116NS        5
#define RFC1533_DNS             6
#define RFC1533_LOGSERVER       7
#define RFC1533_COOKIESERVER    8
#define RFC1533_LPRSERVER       9
#define RFC1533_IMPRESSSERVER   10
#define RFC1533_RESOURCESERVER  11
#define RFC1533_HOSTNAME        12
#define RFC1533_BOOTFILESIZE    13
#define RFC1533_MERITDUMPFILE   14
#define RFC1533_DOMAINNAME      15
#define RFC1533_SWAPSERVER      16
#define RFC1533_ROOTPATH        17
#define RFC1533_EXTENSIONPATH   18
#define RFC1533_IPFORWARDING    19
#define RFC1533_IPSOURCEROUTING 20
#define RFC1533_IPPOLICYFILTER  21
#define RFC1533_IPMAXREASSEMBLY 22
#define RFC1533_IPTTL           23
#define RFC1533_IPMTU           24
#define RFC1533_IPMTUPLATEAU    25
#define RFC1533_INTMTU          26
#define RFC1533_INTLOCALSUBNETS 27
#define RFC1533_INTBROADCAST    28
#define RFC1533_INTICMPDISCOVER 29
#define RFC1533_INTICMPRESPOND  30
#define RFC1533_INTROUTEDISCOVER 31
#define RFC1533_INTROUTESOLICIT 32
#define RFC1533_INTSTATICROUTES 33
#define RFC1533_LLTRAILERENCAP  34
#define RFC1533_LLARPCACHETMO   35
#define RFC1533_LLETHERNETENCAP 36
#define RFC1533_TCPTTL          37
#define RFC1533_TCPKEEPALIVETMO 38
#define RFC1533_TCPKEEPALIVEGB  39
#define RFC1533_NISDOMAIN       40
#define RFC1533_NISSERVER       41
#define RFC1533_NTPSERVER       42
#define RFC1533_VENDOR          43
#define RFC1533_NBNS            44
#define RFC1533_NBDD            45
#define RFC1533_NBNT            46
#define RFC1533_NBSCOPE         47
#define RFC1533_XFS             48
#define RFC1533_XDM             49
#ifndef NO_DHCP_SUPPORT
#define RFC2132_REQ_ADDR        50
#define RFC2132_MSG_TYPE        53
#define RFC2132_SRV_ID          54
#define RFC2132_PARAM_LIST      55
#define RFC2132_MAX_SIZE        57
#define RFC2132_VENDOR_CLASS_ID 60

#define DHCPDISCOVER            1
#define DHCPOFFER               2
#define DHCPREQUEST             3
#define DHCPACK                 5
#endif  /* NO_DHCP_SUPPORT */

#define RFC1533_VENDOR_MAJOR    0
#define RFC1533_VENDOR_MINOR    0

#define RFC1533_VENDOR_MAGIC    128
#define RFC1533_VENDOR_ADDPARM  129
#define RFC1533_VENDOR_MNUOPTS  160
#define RFC1533_VENDOR_SELECTION 176
#define RFC1533_VENDOR_MOTD     184
#define RFC1533_VENDOR_NUMOFMOTD 8
#define RFC1533_VENDOR_IMG      192
#define RFC1533_VENDOR_NUMOFIMG 16

#define RFC1533_VENDOR_CONFIGFILE       150

#define RFC1533_END             255

#define BOOTP_VENDOR_LEN        64
#ifndef NO_DHCP_SUPPORT
#define DHCP_OPT_LEN            312
#endif  /* NO_DHCP_SUPPORT */

#define TFTP_DEFAULTSIZE_PACKET 512
#define TFTP_MAX_PACKET         1432 /* 512 */

#define TFTP_RRQ        1
#define TFTP_WRQ        2
#define TFTP_DATA       3
#define TFTP_ACK        4
#define TFTP_ERROR      5
#define TFTP_OACK       6

#define TFTP_CODE_EOF   1
#define TFTP_CODE_MORE  2
#define TFTP_CODE_ERROR 3
#define TFTP_CODE_BOOT  4
#define TFTP_CODE_CFG   5

#define AWAIT_ARP       0
#define AWAIT_BOOTP     1
#define AWAIT_TFTP      2
#define AWAIT_RARP      3
#define AWAIT_RPC       4
#define AWAIT_QDRAIN    5       /* drain queue, process ARP requests */

typedef struct
{
  unsigned long s_addr;
}
in_addr;

struct arptable_t
{
  in_addr ipaddr;
  unsigned char node[6];
};

/*
 * A pity sipaddr and tipaddr are not longword aligned or we could use
 * in_addr. No, I don't want to use #pragma packed.
 */
struct arprequest
{
  unsigned short hwtype;
  unsigned short protocol;
  char hwlen;
  char protolen;
  unsigned short opcode;
  char shwaddr[6];
  char sipaddr[4];
  char thwaddr[6];
  char tipaddr[4];
};

struct iphdr
{
  char verhdrlen;
  char service;
  unsigned short len;
  unsigned short ident;
  unsigned short frags;
  char ttl;
  char protocol;
  unsigned short chksum;
  in_addr src;
  in_addr dest;
};

struct udphdr
{
  unsigned short src;
  unsigned short dest;
  unsigned short len;
  unsigned short chksum;
};

/* Format of a bootp packet.  */
struct bootp_t
{
  char bp_op;
  char bp_htype;
  char bp_hlen;
  char bp_hops;
  unsigned long bp_xid;
  unsigned short bp_secs;
  unsigned short unused;
  in_addr bp_ciaddr;
  in_addr bp_yiaddr;
  in_addr bp_siaddr;
  in_addr bp_giaddr;
  char bp_hwaddr[16];
  char bp_sname[64];
  char bp_file[128];
#ifdef  NO_DHCP_SUPPORT
  char bp_vend[BOOTP_VENDOR_LEN];
#else
  char bp_vend[DHCP_OPT_LEN];
#endif  /* NO_DHCP_SUPPORT */
};

/* Format of a bootp IP packet.  */
struct bootpip_t
{
  struct iphdr ip;
  struct udphdr udp;
  struct bootp_t bp;
};

/* Format of bootp packet with extensions.  */
struct bootpd_t
{
  struct bootp_t bootp_reply;
  unsigned char  bootp_extension[MAX_BOOTP_EXTLEN];
};

struct tftp_t
{
  struct iphdr ip;
  struct udphdr udp;
  unsigned short opcode;
  union
  {
    char rrq[TFTP_DEFAULTSIZE_PACKET];
    
    struct
    {
      unsigned short block;
      char download[TFTP_MAX_PACKET];
    }
    data;
    
    struct
    {
      unsigned short block;
    }
    ack;
    
    struct
    {
      unsigned short errcode;
      char errmsg[TFTP_DEFAULTSIZE_PACKET];
    }
    err;
    
    struct
    {
      char data[TFTP_DEFAULTSIZE_PACKET+2];
    }
    oack;
  }
  u;
};

/* Define a smaller tftp packet solely for making requests to conserve stack
   512 bytes should be enough.  */
struct tftpreq_t
{
  struct iphdr ip;
  struct udphdr udp;
  unsigned short opcode;
  union
  {
    char rrq[512];
    
    struct
    {
      unsigned short block;
    }
    ack;
    
    struct
    {
      unsigned short errcode;
      char errmsg[512-2];
    }
    err;
  }
  u;
};

#define TFTP_MIN_PACKET (sizeof(struct iphdr) + sizeof(struct udphdr) + 4)

struct rpc_t
{
  struct iphdr ip;
  struct udphdr udp;
  union
  {
    char data[300];             /* longest RPC call must fit!!!! */
    
    struct
    {
      long id;
      long type;
      long rpcvers;
      long prog;
      long vers;
      long proc;
      long data[1];
    }
    call;
    
    struct
    {
      long id;
      long type;
      long rstatus;
      long verifier;
      long v2;
      long astatus;
      long data[1];
    }
    reply;
  }
  u;
};

#define PROG_PORTMAP    100000
#define PROG_NFS        100003
#define PROG_MOUNT      100005

#define MSG_CALL        0
#define MSG_REPLY       1

#define PORTMAP_GETPORT 3

#define MOUNT_ADDENTRY  1
#define MOUNT_UMOUNTALL 4

#define NFS_LOOKUP      4
#define NFS_READ        6

#define NFS_FHSIZE      32

#define NFSERR_PERM     1
#define NFSERR_NOENT    2
#define NFSERR_ACCES    13

/* Block size used for NFS read accesses.  A RPC reply packet (including  all
 * headers) must fit within a single Ethernet frame to avoid fragmentation.
 * Chosen to be a power of two, as most NFS servers are optimized for this.  */
#define NFS_READ_SIZE   1024

#define FLOPPY_BOOT_LOCATION    0x7c00
/* Must match offsets in loader.S */
#define ROM_SEGMENT             0x1fa
#define ROM_LENGTH              0x1fc

#define ROM_INFO_LOCATION       (FLOPPY_BOOT_LOCATION + ROM_SEGMENT)
/* at end of floppy boot block */

struct rom_info
{
  unsigned short        rom_segment;
  unsigned short        rom_length;
};

static inline int
rom_address_ok (struct rom_info *rom, int assigned_rom_segment)
{
  return (assigned_rom_segment < 0xC000
          || assigned_rom_segment == rom->rom_segment);
}

/* Define a type for passing info to a loaded program.  */
struct ebinfo
{
  unsigned char major, minor;   /* Version */
  unsigned short        flags;          /* Bit flags */
};

/***************************************************************************
External prototypes
***************************************************************************/
/* main.c */
extern void print_network_configuration (void);
extern int ifconfig (char *ip, char *sm, char *gw, char *svr);
extern int udp_transmit (unsigned long destip, unsigned int srcsock,
                         unsigned int destsock, int len, const void *buf);
extern int await_reply (int type, int ival, void *ptr, int timeout);
extern int decode_rfc1533 (unsigned char *, int, int, int);
extern long rfc2131_sleep_interval (int base, int exp);
extern void cleanup (void);
extern int rarp (void);
extern int bootp (void);
extern void cleanup_net (void);

/* config.c */
extern void print_config (void);
extern void eth_reset (void);
extern int eth_probe (void);
extern int eth_poll (void);
extern void eth_transmit (const char *d, unsigned int t,
                          unsigned int s, const void *p);
extern void eth_disable (void);

/* misc.c */
extern void twiddle (void);
extern void sleep (int secs);
extern int getdec (char **s);
extern void etherboot_printf (const char *, ...);
extern int etherboot_sprintf (char *, const char *, ...);
extern int inet_aton (char *p, in_addr *i);

/***************************************************************************
External variables
***************************************************************************/
/* main.c */
extern int ip_abort;
extern int network_ready;
extern struct rom_info rom;
extern struct arptable_t arptable[MAX_ARP];
extern struct bootpd_t bootp_data;
#define BOOTP_DATA_ADDR (&bootp_data)
extern unsigned char *end_of_rfc1533;

/* config.c */
extern struct nic nic;

/* Local hack - define some macros to use etherboot source files "as is".  */
#ifndef GRUB
# undef printf
# define printf etherboot_printf
# undef sprintf
# define sprintf etherboot_sprintf
#endif /* GRUB */
 /*
 * 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, or (at
 * your option) any later version.
 */

#ifndef NIC_H
#define NIC_H

/*
 *      Structure returned from eth_probe and passed to other driver
 *      functions.
 */

struct nic
{
        void            (*reset)((struct nic *));
        int             (*poll)P((struct nic *));
        void            (*transmit)P((struct nic *, const char *d,
                                unsigned int t, unsigned int s, const char *p));
        void            (*disable)P((struct nic *));
        int             flags;  /* driver specific flags */
        struct rom_info *rom_info;      /* -> rom_info from main */
        unsigned char   *node_addr;
        char            *packet;
        unsigned int    packetlen;
        void            *priv_data;     /* driver can hang private data here */
};

#endif  /* NIC_H */
#ifndef CARDS_H
#define CARDS_H

/*
 * 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, or (at
 * your option) any later version.
 */

#include "nic.h"

/* OK, this is how the PCI support hack works:  if pci.h is included before
 * this file is included, assume that the driver supports PCI.  This means that
 * this file is usually included last.  */

#ifdef  PCI_H
#define PCI_ARG(x) ,x
#else
#define PCI_ARG(x)
#endif

#ifdef  INCLUDE_WD
extern struct nic       *wd_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_3C503
extern struct nic       *t503_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_VIA_RHINE
extern struct nic       *rhine_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_NE
extern struct nic       *ne_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_NS8390
extern struct nic       *nepci_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_3C509
extern struct nic       *t509_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_3C529
extern struct nic       *t529_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_3C595
extern struct nic       *t595_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_3C90X
extern struct nic       *a3c90x_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_EEPRO
extern struct nic       *eepro_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_EEPRO100
extern struct nic       *eepro100_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_EPIC100
extern struct nic       *epic100_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_OTULIP
extern struct nic       *otulip_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_TULIP
extern struct nic       *tulip_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_DAVICOM
extern struct nic       *davicom_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_CS89X0
extern struct nic       *cs89x0_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_LANCE
extern struct nic       *lancepci_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_NE2100
extern struct nic       *ne2100_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_NI6510
extern struct nic       *ni6510_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_SK_G16
extern struct nic       *SK_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_3C507
extern struct nic       *t507_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_NI5010
extern struct nic       *ni5010_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_NI5210
extern struct nic       *ni5210_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_EXOS205
extern struct nic       *exos205_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_SMC9000
extern struct nic       *smc9000_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_TIARA
extern struct nic       *tiara_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_DEPCA
extern struct nic       *depca_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_RTL8139
extern struct nic       *rtl8139_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_W89C840
extern struct nic       *w89c840_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_SIS900
extern struct nic       *sis900_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_NATSEMI
extern struct nic       *natsemi_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#ifdef  INCLUDE_TLAN
extern struct nic       *tlan_probe(struct nic *, unsigned short *
        PCI_ARG(struct pci_device *));
#endif

#endif  /* CARDS_H */
/* Defines for routines to implement a low-overhead timer for drivers */

 /*
 * 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, or (at
 * your option) any later version.
 */

#ifndef TIMER_H
#define TIMER_H

/* Ports for the 8254 timer chip */
#define TIMER2_PORT     0x42
#define TIMER_MODE_PORT 0x43

/* Meaning of the mode bits */
#define TIMER0_SEL      0x00
#define TIMER1_SEL      0x40
#define TIMER2_SEL      0x80
#define READBACK_SEL    0xC0

#define LATCH_COUNT     0x00
#define LOBYTE_ACCESS   0x10
#define HIBYTE_ACCESS   0x20
#define WORD_ACCESS     0x30

#define MODE0           0x00
#define MODE1           0x02
#define MODE2           0x04
#define MODE3           0x06
#define MODE4           0x08
#define MODE5           0x0A

#define BINARY_COUNT    0x00
#define BCD_COUNT       0x01

/* Timers tick over at this rate */
#define TICKS_PER_MS    1193

/* Parallel Peripheral Controller Port B */
#define PPC_PORTB       0x61

/* Meaning of the port bits */
#define PPCB_T2OUT      0x20    /* Bit 5 */
#define PPCB_SPKR       0x02    /* Bit 1 */
#define PPCB_T2GATE     0x01    /* Bit 0 */

/* Ticks must be between 0 and 65535 (0 == 65536)
   because it is a 16 bit counter */
extern void load_timer2(unsigned int ticks);
extern inline int timer2_running(void)
{
        return ((inb(PPC_PORTB) & PPCB_T2OUT) == 0);
}

extern inline void waiton_timer2(unsigned int ticks)
{
        load_timer2(ticks);
        while ((inb(PPC_PORTB) & PPCB_T2OUT) == 0)
                ;
}

#endif  /* TIMER_H */
#ifndef __OSDEP_H__
#define __OSDEP_H__

/*
 * 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, or (at
 * your option) any later version.
 */

#define __LITTLE_ENDIAN         /* x86 */

/* Taken from /usr/include/linux/hfs_sysdep.h */
#if defined(__BIG_ENDIAN)
#       if !defined(__constant_htonl)
#               define __constant_htonl(x) (x)
#       endif
#       if !defined(__constant_htons)
#               define __constant_htons(x) (x)
#       endif
#elif defined(__LITTLE_ENDIAN)
#       if !defined(__constant_htonl)
#               define __constant_htonl(x) \
        ((unsigned long int)((((unsigned long int)(x) & 0x000000ffU) << 24) | \
                             (((unsigned long int)(x) & 0x0000ff00U) <<  8) | \
                             (((unsigned long int)(x) & 0x00ff0000U) >>  8) | \
                             (((unsigned long int)(x) & 0xff000000U) >> 24)))
#       endif
#       if !defined(__constant_htons)
#               define __constant_htons(x) \
        ((unsigned short int)((((unsigned short int)(x) & 0x00ff) << 8) | \
                              (((unsigned short int)(x) & 0xff00) >> 8)))
#       endif
#else
#       error "Don't know if bytes are big- or little-endian!"
#endif

#define ntohl(x) \
(__builtin_constant_p(x) ? \
 __constant_htonl((x)) : \
 __swap32(x))
#define htonl(x) \
(__builtin_constant_p(x) ? \
 __constant_htonl((x)) : \
 __swap32(x))
#define ntohs(x) \
(__builtin_constant_p(x) ? \
 __constant_htons((x)) : \
 __swap16(x))
#define htons(x) \
(__builtin_constant_p(x) ? \
 __constant_htons((x)) : \
 __swap16(x))

static inline unsigned long int __swap32(unsigned long int x)
{
        __asm__("xchgb %b0,%h0\n\t"
                "rorl $16,%0\n\t"
                "xchgb %b0,%h0"
                : "=q" (x)
                : "0" (x));
        return x;
}

static inline unsigned short int __swap16(unsigned short int x)
{
        __asm__("xchgb %b0,%h0"
                : "=q" (x)
                : "0" (x));
        return x;
}

/* Make routines available to all */
#define swap32(x)       __swap32(x)
#define swap16(x)       __swap16(x)

#include "linux-asm-io.h"

typedef unsigned long Address;

/* ANSI prototyping macro */
#ifdef  __STDC__
#define P(x)    x
#else
#define P(x)    ()
#endif

#endif

/*
 * Local variables:
 *  c-basic-offset: 8
 * End:
 */

---