bcm570x_lm.h

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/******************************************************************************/
/*                                                                            */
/* Broadcom BCM5700 Linux Network Driver, Copyright (c) 2000 Broadcom         */
/* Corporation.                                                               */
/* All rights reserved.                                                       */
/*                                                                            */
/* 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, located in the file LICENSE.                 */
/*                                                                            */
/* History:                                                                   */
/*    02/25/00 Hav Khauv        Initial version.                              */
/******************************************************************************/

#ifndef LM_H
#define LM_H

#include "bcm570x_queue.h"
#include "bcm570x_bits.h"


/******************************************************************************/
/* Basic types. */
/******************************************************************************/

typedef char           LM_CHAR,    *PLM_CHAR;
typedef unsigned int   LM_UINT,    *PLM_UINT;
typedef unsigned char  LM_UINT8,   *PLM_UINT8;
typedef unsigned short LM_UINT16,  *PLM_UINT16;
typedef unsigned int   LM_UINT32,  *PLM_UINT32;
typedef unsigned int   LM_COUNTER, *PLM_COUNTER;
typedef void           LM_VOID,    *PLM_VOID;
typedef char           LM_BOOL,    *PLM_BOOL;

/* 64bit value. */
typedef struct {
#ifdef BIG_ENDIAN_HOST
    LM_UINT32 High;
    LM_UINT32 Low;
#else /* BIG_ENDIAN_HOST */
    LM_UINT32 Low;
    LM_UINT32 High;
#endif /* !BIG_ENDIAN_HOST */
} LM_UINT64, *PLM_UINT64;

typedef LM_UINT64 LM_PHYSICAL_ADDRESS, *PLM_PHYSICAL_ADDRESS;

/* void LM_INC_PHYSICAL_ADDRESS(PLM_PHYSICAL_ADDRESS pAddr,LM_UINT32 IncSize) */
#define LM_INC_PHYSICAL_ADDRESS(pAddr, IncSize)             \
    {                                                       \
	LM_UINT32 OrgLow;                                   \
							    \
	OrgLow = (pAddr)->Low;                              \
	(pAddr)->Low += IncSize;                            \
	if((pAddr)->Low < OrgLow) {                         \
	    (pAddr)->High++; /* Wrap around. */             \
	}                                                   \
    }


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

#ifndef OFFSETOF
#define OFFSETOF(_s, _m)    (MM_UINT_PTR(&(((_s *) 0)->_m)))
#endif /* OFFSETOF */


/******************************************************************************/
/* Simple macros. */
/******************************************************************************/

#define IS_ETH_BROADCAST(_pEthAddr)                                         \
    (((unsigned char *) (_pEthAddr))[0] == ((unsigned char) 0xff))

#define IS_ETH_MULTICAST(_pEthAddr)                                         \
    (((unsigned char *) (_pEthAddr))[0] & ((unsigned char) 0x01))

#define IS_ETH_ADDRESS_EQUAL(_pEtherAddr1, _pEtherAddr2)                    \
    ((((unsigned char *) (_pEtherAddr1))[0] ==                              \
    ((unsigned char *) (_pEtherAddr2))[0]) &&                               \
    (((unsigned char *) (_pEtherAddr1))[1] ==                               \
    ((unsigned char *) (_pEtherAddr2))[1]) &&                               \
    (((unsigned char *) (_pEtherAddr1))[2] ==                               \
    ((unsigned char *) (_pEtherAddr2))[2]) &&                               \
    (((unsigned char *) (_pEtherAddr1))[3] ==                               \
    ((unsigned char *) (_pEtherAddr2))[3]) &&                               \
    (((unsigned char *) (_pEtherAddr1))[4] ==                               \
    ((unsigned char *) (_pEtherAddr2))[4]) &&                               \
    (((unsigned char *) (_pEtherAddr1))[5] ==                               \
    ((unsigned char *) (_pEtherAddr2))[5]))

#define COPY_ETH_ADDRESS(_Src, _Dst)                                        \
    ((unsigned char *) (_Dst))[0] = ((unsigned char *) (_Src))[0];          \
    ((unsigned char *) (_Dst))[1] = ((unsigned char *) (_Src))[1];          \
    ((unsigned char *) (_Dst))[2] = ((unsigned char *) (_Src))[2];          \
    ((unsigned char *) (_Dst))[3] = ((unsigned char *) (_Src))[3];          \
    ((unsigned char *) (_Dst))[4] = ((unsigned char *) (_Src))[4];          \
    ((unsigned char *) (_Dst))[5] = ((unsigned char *) (_Src))[5];


/******************************************************************************/
/* Constants. */
/******************************************************************************/

#define ETHERNET_ADDRESS_SIZE           6
#define ETHERNET_PACKET_HEADER_SIZE     14
#define MIN_ETHERNET_PACKET_SIZE        64      /* with 4 byte crc. */
#define MAX_ETHERNET_PACKET_SIZE        1518    /* with 4 byte crc. */
#define MIN_ETHERNET_PACKET_SIZE_NO_CRC 60
#define MAX_ETHERNET_PACKET_SIZE_NO_CRC 1514
#define MAX_ETHERNET_PACKET_BUFFER_SIZE 1536    /* A nice even number. */

#ifndef LM_MAX_MC_TABLE_SIZE
#define LM_MAX_MC_TABLE_SIZE            32
#endif /* LM_MAX_MC_TABLE_SIZE */
#define LM_MC_ENTRY_SIZE                (ETHERNET_ADDRESS_SIZE+1)
#define LM_MC_INSTANCE_COUNT_INDEX      (LM_MC_ENTRY_SIZE-1)


/* Receive filter masks. */
#define LM_ACCEPT_UNICAST               0x0001
#define LM_ACCEPT_MULTICAST             0x0002
#define LM_ACCEPT_ALL_MULTICAST         0x0004
#define LM_ACCEPT_BROADCAST             0x0008
#define LM_ACCEPT_ERROR_PACKET          0x0010

#define LM_PROMISCUOUS_MODE             0x10000


/******************************************************************************/
/* PCI registers. */
/******************************************************************************/

#define PCI_VENDOR_ID_REG               0x00
#define PCI_DEVICE_ID_REG               0x02

#define PCI_COMMAND_REG                 0x04
#define PCI_IO_SPACE_ENABLE             0x0001
#define PCI_MEM_SPACE_ENABLE            0x0002
#define PCI_BUSMASTER_ENABLE            0x0004
#define PCI_MEMORY_WRITE_INVALIDATE     0x0010
#define PCI_PARITY_ERROR_ENABLE         0x0040
#define PCI_SYSTEM_ERROR_ENABLE         0x0100
#define PCI_FAST_BACK_TO_BACK_ENABLE    0x0200

#define PCI_STATUS_REG                  0x06
#define PCI_REV_ID_REG                  0x08

#define PCI_CACHE_LINE_SIZE_REG         0x0c

#define PCI_IO_BASE_ADDR_REG            0x10
#define PCI_IO_BASE_ADDR_MASK           0xfffffff0

#define PCI_MEM_BASE_ADDR_LOW           0x10
#define PCI_MEM_BASE_ADDR_HIGH          0x14

#define PCI_SUBSYSTEM_VENDOR_ID_REG     0x2c
#define PCI_SUBSYSTEM_ID_REG            0x2e
#define PCI_INT_LINE_REG                0x3c

#define PCIX_CAP_REG                    0x40
#define PCIX_ENABLE_RELAXED_ORDERING    BIT_17

/******************************************************************************/
/* Fragment structure. */
/******************************************************************************/

typedef struct {
    LM_UINT32 FragSize;
    LM_PHYSICAL_ADDRESS FragBuf;
} LM_FRAG, *PLM_FRAG;

typedef struct {
    /* FragCount is initialized for the caller to the maximum array size, on */
    /* return FragCount is the number of the actual fragments in the array. */
    LM_UINT32 FragCount;

    /* Total buffer size. */
    LM_UINT32 TotalSize;

    /* Fragment array buffer. */
    LM_FRAG Fragments[1];
} LM_FRAG_LIST, *PLM_FRAG_LIST;

#define DECLARE_FRAG_LIST_BUFFER_TYPE(_FRAG_LIST_TYPE_NAME, _MAX_FRAG_COUNT) \
    typedef struct {                                                         \
	LM_FRAG_LIST FragList;                                               \
	LM_FRAG FragListBuffer[_MAX_FRAG_COUNT-1];                           \
    } _FRAG_LIST_TYPE_NAME, *P##_FRAG_LIST_TYPE_NAME


/******************************************************************************/
/* Status codes. */
/******************************************************************************/

#define LM_STATUS_SUCCESS                                       0
#define LM_STATUS_FAILURE                                       1

#define LM_STATUS_INTERRUPT_ACTIVE                              2
#define LM_STATUS_INTERRUPT_NOT_ACTIVE                          3

#define LM_STATUS_LINK_ACTIVE                                   4
#define LM_STATUS_LINK_DOWN                                     5
#define LM_STATUS_LINK_SETTING_MISMATCH                         6

#define LM_STATUS_TOO_MANY_FRAGMENTS                            7
#define LM_STATUS_TRANSMIT_ABORTED                              8
#define LM_STATUS_TRANSMIT_ERROR                                9
#define LM_STATUS_RECEIVE_ABORTED                               10
#define LM_STATUS_RECEIVE_ERROR                                 11
#define LM_STATUS_INVALID_PACKET_SIZE                           12
#define LM_STATUS_OUT_OF_MAP_REGISTERS                          13
#define LM_STATUS_UNKNOWN_ADAPTER                               14

typedef LM_UINT LM_STATUS, *PLM_STATUS;


/******************************************************************************/
/* Requested media type. */
/******************************************************************************/

#define LM_REQUESTED_MEDIA_TYPE_AUTO                            0
#define LM_REQUESTED_MEDIA_TYPE_BNC                             1