wavelan.h

优龙2410linux2.6.8内核源代码

/*
 *	WaveLAN ISA driver
 *
 *		Jean II - HPLB '96
 *
 * Reorganisation and extension of the driver.
 * Original copyright follows. See wavelan.p.h for details.
 *
 * This file contains the declarations for the WaveLAN hardware. Note that
 * the WaveLAN ISA includes a i82586 controller (see definitions in
 * file i82586.h).
 *
 * The main difference between the ISA hardware and the PCMCIA one is
 * the Ethernet controller (i82586 instead of i82593).
 * The i82586 allows multiple transmit buffers.  The PSA needs to be accessed
 * through the host interface.
 */

#ifndef _WAVELAN_H
#define	_WAVELAN_H

/************************** MAGIC NUMBERS ***************************/

/* Detection of the WaveLAN card is done by reading the MAC
 * address from the card and checking it.  If you have a non-AT&T
 * product (OEM, like DEC RoamAbout, Digital Ocean, or Epson),
 * you might need to modify this part to accommodate your hardware.
 */
static const char	MAC_ADDRESSES[][3] =
{
  { 0x08, 0x00, 0x0E },		/* AT&T WaveLAN (standard) & DEC RoamAbout */
  { 0x08, 0x00, 0x6A },		/* AT&T WaveLAN (alternate) */
  { 0x00, 0x00, 0xE1 },		/* Hitachi Wavelan */
  { 0x00, 0x60, 0x1D }		/* Lucent Wavelan (another one) */
  /* Add your card here and send me the patch! */
};

#define WAVELAN_ADDR_SIZE	6	/* Size of a MAC address */

#define WAVELAN_MTU		1500	/* Maximum size of WaveLAN packet */

#define	MAXDATAZ		(WAVELAN_ADDR_SIZE + WAVELAN_ADDR_SIZE + 2 + WAVELAN_MTU)

/*
 * Constants used to convert channels to frequencies
 */

/* Frequency available in the 2.0 modem, in units of 250 kHz
 * (as read in the offset register of the dac area).
 * Used to map channel numbers used by `wfreqsel' to frequencies
 */
static const short	channel_bands[] = { 0x30, 0x58, 0x64, 0x7A, 0x80, 0xA8,
				    0xD0, 0xF0, 0xF8, 0x150 };

/* Frequencies of the 1.0 modem (fixed frequencies).
 * Use to map the PSA `subband' to a frequency
 * Note : all frequencies apart from the first one need to be multiplied by 10
 */
static const int	fixed_bands[] = { 915e6, 2.425e8, 2.46e8, 2.484e8, 2.4305e8 };



/*************************** PC INTERFACE ****************************/

/*
 * Host Adaptor structure.
 * (base is board port address).
 */
typedef union hacs_u	hacs_u;
union hacs_u
{
	unsigned short	hu_command;		/* Command register */
#define		HACR_RESET		0x0001	/* Reset board */
#define		HACR_CA			0x0002	/* Set Channel Attention for 82586 */
#define		HACR_16BITS		0x0004	/* 16-bit operation (0 => 8bits) */
#define		HACR_OUT0		0x0008	/* General purpose output pin 0 */
						/* not used - must be 1 */
#define		HACR_OUT1		0x0010	/* General purpose output pin 1 */
						/* not used - must be 1 */
#define		HACR_82586_INT_ENABLE	0x0020	/* Enable 82586 interrupts */
#define		HACR_MMC_INT_ENABLE	0x0040	/* Enable MMC interrupts */
#define		HACR_INTR_CLR_ENABLE	0x0080	/* Enable interrupt status read/clear */
	unsigned short	hu_status;		/* Status Register */
#define		HASR_82586_INTR		0x0001	/* Interrupt request from 82586 */
#define		HASR_MMC_INTR		0x0002	/* Interrupt request from MMC */
#define		HASR_MMC_BUSY		0x0004	/* MMC busy indication */
#define		HASR_PSA_BUSY		0x0008	/* LAN parameter storage area busy */
};

typedef struct ha_t	ha_t;
struct ha_t
{
	hacs_u		ha_cs;		/* Command and status registers */
#define 		ha_command	ha_cs.hu_command
#define 		ha_status	ha_cs.hu_status
	unsigned short	ha_mmcr;	/* Modem Management Ctrl Register */
	unsigned short	ha_pior0;	/* Program I/O Address Register Port 0 */
	unsigned short	ha_piop0;	/* Program I/O Port 0 */
	unsigned short	ha_pior1;	/* Program I/O Address Register Port 1 */
	unsigned short	ha_piop1;	/* Program I/O Port 1 */
	unsigned short	ha_pior2;	/* Program I/O Address Register Port 2 */
	unsigned short	ha_piop2;	/* Program I/O Port 2 */
};

#define HA_SIZE		16

#define	hoff(p,f) 	(unsigned short)((void *)(&((ha_t *)((void *)0 + (p)))->f) - (void *)0)
#define	HACR(p)		hoff(p, ha_command)
#define	HASR(p)		hoff(p, ha_status)
#define	MMCR(p)		hoff(p, ha_mmcr)
#define	PIOR0(p)	hoff(p, ha_pior0)
#define	PIOP0(p)	hoff(p, ha_piop0)
#define	PIOR1(p)	hoff(p, ha_pior1)
#define	PIOP1(p)	hoff(p, ha_piop1)
#define	PIOR2(p)	hoff(p, ha_pior2)
#define	PIOP2(p)	hoff(p, ha_piop2)

/*
 * Program I/O Mode Register values.
 */
#define STATIC_PIO		0	/* Mode 1: static mode */
					/* RAM access ??? */
#define AUTOINCR_PIO		1	/* Mode 2: auto increment mode */
					/* RAM access ??? */
#define AUTODECR_PIO		2	/* Mode 3: auto decrement mode */
					/* RAM access ??? */
#define PARAM_ACCESS_PIO	3	/* Mode 4: LAN parameter access mode */
					/* Parameter access. */
#define PIO_MASK		3	/* register mask */
#define PIOM(cmd,piono)		((u_short)cmd << 10 << (piono * 2))

#define	HACR_DEFAULT		(HACR_OUT0 | HACR_OUT1 | HACR_16BITS | PIOM(STATIC_PIO, 0) | PIOM(AUTOINCR_PIO, 1) | PIOM(PARAM_ACCESS_PIO, 2))
#define	HACR_INTRON		(HACR_82586_INT_ENABLE | HACR_MMC_INT_ENABLE | HACR_INTR_CLR_ENABLE)

/************************** MEMORY LAYOUT **************************/

/*
 * Onboard 64 k RAM layout.
 * (Offsets from 0x0000.)
 */
#define OFFSET_RU		0x0000		/* 75% memory */
#define OFFSET_CU		0xC000		/* 25% memory */
#define OFFSET_SCB		(OFFSET_ISCP - sizeof(scb_t))
#define OFFSET_ISCP		(OFFSET_SCP - sizeof(iscp_t))
#define OFFSET_SCP		I82586_SCP_ADDR

#define	RXBLOCKZ		(sizeof(fd_t) + sizeof(rbd_t) + MAXDATAZ)
#define	TXBLOCKZ		(sizeof(ac_tx_t) + sizeof(ac_nop_t) + sizeof(tbd_t) + MAXDATAZ)

#define	NRXBLOCKS		((OFFSET_CU - OFFSET_RU) / RXBLOCKZ)
#define	NTXBLOCKS		((OFFSET_SCB - OFFSET_CU) / TXBLOCKZ)

/********************** PARAMETER STORAGE AREA **********************/

/*
 * Parameter Storage Area (PSA).
 */
typedef struct psa_t	psa_t;
struct psa_t
{
  unsigned char	psa_io_base_addr_1;	/* [0x00] Base address 1 ??? */
  unsigned char	psa_io_base_addr_2;	/* [0x01] Base address 2 */
  unsigned char	psa_io_base_addr_3;	/* [0x02] Base address 3 */
  unsigned char	psa_io_base_addr_4;	/* [0x03] Base address 4 */
  unsigned char	psa_rem_boot_addr_1;	/* [0x04] Remote Boot Address 1 */
  unsigned char	psa_rem_boot_addr_2;	/* [0x05] Remote Boot Address 2 */
  unsigned char	psa_rem_boot_addr_3;	/* [0x06] Remote Boot Address 3 */
  unsigned char	psa_holi_params;	/* [0x07] HOst Lan Interface (HOLI) Parameters */
  unsigned char	psa_int_req_no;		/* [0x08] Interrupt Request Line */
  unsigned char	psa_unused0[7];		/* [0x09-0x0F] unused */

  unsigned char	psa_univ_mac_addr[WAVELAN_ADDR_SIZE];	/* [0x10-0x15] Universal (factory) MAC Address */
  unsigned char	psa_local_mac_addr[WAVELAN_ADDR_SIZE];	/* [0x16-1B] Local MAC Address */
  unsigned char	psa_univ_local_sel;	/* [0x1C] Universal Local Selection */
#define		PSA_UNIVERSAL	0		/* Universal (factory) */
#define		PSA_LOCAL	1		/* Local */
  unsigned char	psa_comp_number;	/* [0x1D] Compatibility Number:	 */
#define		PSA_COMP_PC_AT_915	0 	/* PC-AT 915 MHz 	 */
#define		PSA_COMP_PC_MC_915	1 	/* PC-MC 915 MHz	 */
#define		PSA_COMP_PC_AT_2400	2 	/* PC-AT 2.4 GHz	 */
#define		PSA_COMP_PC_MC_2400	3 	/* PC-MC 2.4 GHz 	 */
#define		PSA_COMP_PCMCIA_915	4 	/* PCMCIA 915 MHz or 2.0 */
  unsigned char	psa_thr_pre_set;	/* [0x1E] Modem Threshold Preset */
  unsigned char	psa_feature_select;	/* [0x1F] Call code required (1=on) */
#define		PSA_FEATURE_CALL_CODE	0x01 	/* Call code required (Japan) */
  unsigned char	psa_subband;		/* [0x20] Subband	  */