lmc_var.h

hdlc wan 驱动程序

#ifndef _LMC_VAR_H_
#define _LMC_VAR_H_

/* $Id: lmc_var.h,v 1.17 2000/04/06 12:16:47 asj Exp $ */

 /*
  * Copyright (c) 1997-2000 LAN Media Corporation (LMC)
  * All rights reserved.  www.lanmedia.com
  *
  * This code is written by:
  * Andrew Stanley-Jones ([e-mail])
  * Rob Braun ([e-mail]),
  * Michael Graff ([e-mail]) and
  * Matt Thomas ([e-mail]).
  *
  * This software may be used and distributed according to the terms
  * of the GNU General Public License version 2, incorporated herein by reference.
  */

#include <linux/timer.h>

#ifndef __KERNEL__
typedef signed char s8;
typedef unsigned char u8;

typedef signed short s16;
typedef unsigned short u16;

typedef signed int s32;
typedef unsigned int u32;

typedef signed long long s64;
typedef unsigned long long u64;

#define BITS_PER_LONG 32 

#endif

/*
 * basic definitions used in lmc include files
 */

typedef struct lmc___softc lmc_softc_t;
typedef struct lmc___media lmc_media_t;
typedef struct lmc___ctl lmc_ctl_t;

#define lmc_csrptr_t    unsigned long
#define u_int16_t	u16
#define u_int8_t	u8
#define tulip_uint32_t	u32

#define LMC_REG_RANGE 0x80

#define LMC_PRINTF_FMT  "%s"
#define LMC_PRINTF_ARGS	(sc->lmc_device->name)

#define TX_TIMEOUT (2*HZ)

#define LMC_TXDESCS            32
#define LMC_RXDESCS            32

#define LMC_LINK_UP            1
#define LMC_LINK_DOWN          0

/* These macros for generic read and write to and from the dec chip */
#define LMC_CSR_READ(sc, csr) \
	inl((sc)->lmc_csrs.csr)
#define LMC_CSR_WRITE(sc, reg, val) \
	outl((val), (sc)->lmc_csrs.reg)

//#ifdef _LINUX_DELAY_H
//	#define SLOW_DOWN_IO udelay(2);
//	#undef __SLOW_DOWN_IO
//	#define __SLOW_DOWN_IO udelay(2);
//#endif

#define DELAY(n) SLOW_DOWN_IO

#define lmc_delay() inl(sc->lmc_csrs.csr_9)

/* This macro sync's up with the mii so that reads and writes can take place */
#define LMC_MII_SYNC(sc) do {int n=32; while( n >= 0 ) { \
                LMC_CSR_WRITE((sc), csr_9, 0x20000); \
		lmc_delay(); \
		LMC_CSR_WRITE((sc), csr_9, 0x30000); \
                lmc_delay(); \
		n--; }} while(0)

struct lmc_regfile_t {
    lmc_csrptr_t csr_busmode;                  /* CSR0 */
    lmc_csrptr_t csr_txpoll;                   /* CSR1 */
    lmc_csrptr_t csr_rxpoll;                   /* CSR2 */
    lmc_csrptr_t csr_rxlist;                   /* CSR3 */
    lmc_csrptr_t csr_txlist;                   /* CSR4 */
    lmc_csrptr_t csr_status;                   /* CSR5 */
    lmc_csrptr_t csr_command;                  /* CSR6 */
    lmc_csrptr_t csr_intr;                     /* CSR7 */
    lmc_csrptr_t csr_missed_frames;            /* CSR8 */
    lmc_csrptr_t csr_9;                        /* CSR9 */
    lmc_csrptr_t csr_10;                       /* CSR10 */
    lmc_csrptr_t csr_11;                       /* CSR11 */
    lmc_csrptr_t csr_12;                       /* CSR12 */
    lmc_csrptr_t csr_13;                       /* CSR13 */
    lmc_csrptr_t csr_14;                       /* CSR14 */
    lmc_csrptr_t csr_15;                       /* CSR15 */
};

#define csr_enetrom             csr_9   /* 21040 */
#define csr_reserved            csr_10  /* 21040 */
#define csr_full_duplex         csr_11  /* 21040 */
#define csr_bootrom             csr_10  /* 21041/21140A/?? */
#define csr_gp                  csr_12  /* 21140* */
#define csr_watchdog            csr_15  /* 21140* */
#define csr_gp_timer            csr_11  /* 21041/21140* */
#define csr_srom_mii            csr_9   /* 21041/21140* */
#define csr_sia_status          csr_12  /* 2104x */
#define csr_sia_connectivity    csr_13  /* 2104x */
#define csr_sia_tx_rx           csr_14  /* 2104x */
#define csr_sia_general         csr_15  /* 2104x */

/* tulip length/control transmit descriptor definitions
 *  used to define bits in the second tulip_desc_t field (length)
 *  for the transmit descriptor -baz */

#define LMC_TDES_FIRST_BUFFER_SIZE       ((u_int32_t)(0x000007FF))
#define LMC_TDES_SECOND_BUFFER_SIZE      ((u_int32_t)(0x003FF800))
#define LMC_TDES_HASH_FILTERING          ((u_int32_t)(0x00400000))
#define LMC_TDES_DISABLE_PADDING         ((u_int32_t)(0x00800000))
#define LMC_TDES_SECOND_ADDR_CHAINED     ((u_int32_t)(0x01000000))
#define LMC_TDES_END_OF_RING             ((u_int32_t)(0x02000000))
#define LMC_TDES_ADD_CRC_DISABLE         ((u_int32_t)(0x04000000))
#define LMC_TDES_SETUP_PACKET            ((u_int32_t)(0x08000000))
#define LMC_TDES_INVERSE_FILTERING       ((u_int32_t)(0x10000000))
#define LMC_TDES_FIRST_SEGMENT           ((u_int32_t)(0x20000000))
#define LMC_TDES_LAST_SEGMENT            ((u_int32_t)(0x40000000))
#define LMC_TDES_INTERRUPT_ON_COMPLETION ((u_int32_t)(0x80000000))

#define TDES_SECOND_BUFFER_SIZE_BIT_NUMBER  11
#define TDES_COLLISION_COUNT_BIT_NUMBER     3

/* Constants for the RCV descriptor RDES */

#define LMC_RDES_OVERFLOW             ((u_int32_t)(0x00000001))
#define LMC_RDES_CRC_ERROR            ((u_int32_t)(0x00000002))
#define LMC_RDES_DRIBBLING_BIT            ((u_int32_t)(0x00000004))
#define LMC_RDES_REPORT_ON_MII_ERR    ((u_int32_t)(0x00000008))
#define LMC_RDES_RCV_WATCHDOG_TIMEOUT ((u_int32_t)(0x00000010))
#define LMC_RDES_FRAME_TYPE           ((u_int32_t)(0x00000020))
#define LMC_RDES_COLLISION_SEEN       ((u_int32_t)(0x00000040))
#define LMC_RDES_FRAME_TOO_LONG       ((u_int32_t)(0x00000080))
#define LMC_RDES_LAST_DESCRIPTOR      ((u_int32_t)(0x00000100))
#define LMC_RDES_FIRST_DESCRIPTOR     ((u_int32_t)(0x00000200))
#define LMC_RDES_MULTICAST_FRAME      ((u_int32_t)(0x00000400))
#define LMC_RDES_RUNT_FRAME           ((u_int32_t)(0x00000800))
#define LMC_RDES_DATA_TYPE            ((u_int32_t)(0x00003000))
#define LMC_RDES_LENGTH_ERROR         ((u_int32_t)(0x00004000))
#define LMC_RDES_ERROR_SUMMARY        ((u_int32_t)(0x00008000))
#define LMC_RDES_FRAME_LENGTH         ((u_int32_t)(0x3FFF0000))
#define LMC_RDES_OWN_BIT              ((u_int32_t)(0x80000000))

#define RDES_FRAME_LENGTH_BIT_NUMBER       16

#define LMC_RDES_ERROR_MASK ( (u_int32_t)( \
	  LMC_RDES_OVERFLOW \
	| LMC_RDES_DRIBBLING_BIT \
	| LMC_RDES_REPORT_ON_MII_ERR \
        | LMC_RDES_COLLISION_SEEN ) )


/*
 * Ioctl info
 */

typedef struct {
	u_int32_t	n;
	u_int32_t	m;
	u_int32_t	v;
	u_int32_t	x;
	u_int32_t	r;
	u_int32_t	f;
	u_int32_t	exact;
} lmc_av9110_t;

/*
 * Common structure passed to the ioctl code.
 */
struct lmc___ctl {
	u_int32_t	cardtype;
	u_int32_t	clock_source;		/* HSSI, T1 */
	u_int32_t	clock_rate;		/* T1 */
	u_int32_t	crc_length;
	u_int32_t	cable_length;		/* DS3 */
	u_int32_t	scrambler_onoff;	/* DS3 */
	u_int32_t	cable_type;		/* T1 */
	u_int32_t	keepalive_onoff;	/* protocol */
	u_int32_t	ticks;			/* ticks/sec */
	union {
		lmc_av9110_t	ssi;
	} cardspec;
	u_int32_t       circuit_type;   /* T1 or E1 */
};


/*
 * Carefull, look at the data sheet, there's more to this
 * structure than meets the eye.  It should probably be:
 *
 * struct tulip_desc_t {
 *         u8  own:1;
 *         u32 status:31;
 *         u32 control:10;
 *         u32 buffer1;
 *         u32 buffer2;
 * };
 * You could also expand status control to provide more bit information
 */

struct tulip_desc_t {
	s32 status;
	s32 length;
	u32 buffer1;
	u32 buffer2;
};

/*
 * media independent methods to check on media status, link, light LEDs,
 * etc.
 */
struct lmc___media {
	void	(* init)(lmc_softc_t * const);
	void	(* defaults)(lmc_softc_t * const);
	void	(* set_status)(lmc_softc_t * const, lmc_ctl_t *);
	void	(* set_clock_source)(lmc_softc_t * const, int);
	void	(* set_speed)(lmc_softc_t * const, lmc_ctl_t *);
	void	(* set_cable_length)(lmc_softc_t * const, int);
	void	(* set_scrambler)(lmc_softc_t * const, int);
	int	(* get_link_status)(lmc_softc_t * const);
	void	(* set_link_status)(lmc_softc_t * const, int);
	void	(* set_crc_length)(lmc_softc_t * const, int);
        void    (* set_circuit_type)(lmc_softc_t * const, int);
        void	(* watchdog)(lmc_softc_t * const);
};


#define STATCHECK     0xBEEFCAFE

/*  Included in this structure are first
 *   - standard net_device_stats
 *   - some other counters used for debug and driver performance
 *  evaluation -baz
 */
struct lmc_statistics
{
        unsigned long     rx_packets;             /* total packets received       */
        unsigned long     tx_packets;             /* total packets transmitted    */
	unsigned long     rx_bytes;
        unsigned long     tx_bytes;
        
        unsigned long     rx_errors;              /* bad packets received         */
        unsigned long     tx_errors;              /* packet transmit problems     */
        unsigned long     rx_dropped;             /* no space in linux buffers    */
        unsigned long     tx_dropped;             /* no space available in linux  */
        unsigned long     multicast;              /* multicast packets received   */
        unsigned long     collisions;

        /* detailed rx_errors: */
        unsigned long     rx_length_errors;
        unsigned long     rx_over_errors;         /* receiver ring buff overflow  */
        unsigned long     rx_crc_errors;          /* recved pkt with crc error    */
        unsigned long     rx_frame_errors;        /* recv'd frame alignment error */
        unsigned long     rx_fifo_errors;         /* recv'r fifo overrun          */
        unsigned long     rx_missed_errors;       /* receiver missed packet       */

        /* detailed tx_errors */
        unsigned long     tx_aborted_errors;
        unsigned long     tx_carrier_errors;
        unsigned long     tx_fifo_errors;
        unsigned long     tx_heartbeat_errors;
        unsigned long     tx_window_errors;

        /* for cslip etc */
        unsigned long rx_compressed;
        unsigned long tx_compressed;

        /* -------------------------------------
         * Custom stats & counters follow -baz */