drivers/net/arm/ether1.h - kernel/skids - Git at Google

 /*
  *  linux/drivers/acorn/net/ether1.h
  *
  *  Copyright (C) 1996 Russell King
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
  *  Network driver for Acorn Ether1 cards.
  */

 #ifndef _LINUX_ether1_H
 #define _LINUX_ether1_H

 #ifdef __ETHER1_C
 /* use 0 for production, 1 for verification, >2 for debug */
 #ifndef NET_DEBUG
 #define NET_DEBUG 0
 #endif

 #define priv(dev)	((struct ether1_priv *)netdev_priv(dev))

 /* Page register */
 #define REG_PAGE	(priv(dev)->base + 0x0000)

 /* Control register */
 #define REG_CONTROL	(priv(dev)->base + 0x0004)
 #define CTRL_RST	0x01
 #define CTRL_LOOPBACK	0x02
 #define CTRL_CA		0x04
 #define CTRL_ACK	0x08

 #define ETHER1_RAM	(priv(dev)->base + 0x2000)

 /* HW address */
 #define IDPROM_ADDRESS	(priv(dev)->base + 0x0024)

 struct ether1_priv {
 	void __iomem *base;
 	struct net_device_stats stats;
 	unsigned int tx_link;
 	unsigned int tx_head;
 	volatile unsigned int tx_tail;
 	volatile unsigned int rx_head;
 	volatile unsigned int rx_tail;
 	unsigned char bus_type;
 	unsigned char resetting;
 	unsigned char initialising : 1;
 	unsigned char restart      : 1;
 };

 #define I82586_NULL (-1)

 typedef struct { /* tdr */
 	unsigned short tdr_status;
 	unsigned short tdr_command;
 	unsigned short tdr_link;
 	unsigned short tdr_result;
 #define TDR_TIME	(0x7ff)
 #define TDR_SHORT	(1 << 12)
 #define TDR_OPEN	(1 << 13)
 #define TDR_XCVRPROB	(1 << 14)
 #define TDR_LNKOK	(1 << 15)
 } tdr_t;

 typedef struct { /* transmit */
 	unsigned short tx_status;
 	unsigned short tx_command;
 	unsigned short tx_link;
 	unsigned short tx_tbdoffset;
 } tx_t;

 typedef struct { /* tbd */
 	unsigned short tbd_opts;
 #define TBD_CNT		(0x3fff)
 #define TBD_EOL		(1 << 15)
 	unsigned short tbd_link;
 	unsigned short tbd_bufl;
 	unsigned short tbd_bufh;
 } tbd_t;

 typedef struct { /* rfd */
 	unsigned short rfd_status;
 #define RFD_NOEOF	(1 << 6)
 #define RFD_FRAMESHORT	(1 << 7)
 #define RFD_DMAOVRN	(1 << 8)
 #define RFD_NORESOURCES	(1 << 9)
 #define RFD_ALIGNERROR	(1 << 10)
 #define RFD_CRCERROR	(1 << 11)
 #define RFD_OK		(1 << 13)
 #define RFD_FDCONSUMED	(1 << 14)
 #define RFD_COMPLETE	(1 << 15)
 	unsigned short rfd_command;
 #define RFD_CMDSUSPEND	(1 << 14)
 #define RFD_CMDEL	(1 << 15)
 	unsigned short rfd_link;
 	unsigned short rfd_rbdoffset;
 	unsigned char  rfd_dest[6];
 	unsigned char  rfd_src[6];
 	unsigned short rfd_len;
 } rfd_t;

 typedef struct { /* rbd */
 	unsigned short rbd_status;
 #define RBD_ACNT	(0x3fff)
 #define RBD_ACNTVALID	(1 << 14)
 #define RBD_EOF		(1 << 15)
 	unsigned short rbd_link;
 	unsigned short rbd_bufl;
 	unsigned short rbd_bufh;
 	unsigned short rbd_len;
 } rbd_t;

 typedef struct { /* nop */
 	unsigned short nop_status;
 	unsigned short nop_command;
 	unsigned short nop_link;
 } nop_t;

 typedef struct { /* set multicast */
 	unsigned short mc_status;
 	unsigned short mc_command;
 	unsigned short mc_link;
 	unsigned short mc_cnt;
 	unsigned char  mc_addrs[1][6];
 } mc_t;

 typedef struct { /* set address */
 	unsigned short sa_status;
 	unsigned short sa_command;
 	unsigned short sa_link;
 	unsigned char  sa_addr[6];
 } sa_t;

 typedef struct { /* config command */
 	unsigned short cfg_status;
 	unsigned short cfg_command;
 	unsigned short cfg_link;
 	unsigned char  cfg_bytecnt;	/* size foll data: 4 - 12		 */
 	unsigned char  cfg_fifolim;	/* FIFO threshold			 */
 	unsigned char  cfg_byte8;
 #define CFG8_SRDY	(1 << 6)
 #define CFG8_SAVEBADF	(1 << 7)
 	unsigned char  cfg_byte9;
 #define CFG9_ADDRLEN(x)	(x)
 #define CFG9_ADDRLENBUF	(1 << 3)
 #define CFG9_PREAMB2	(0 << 4)
 #define CFG9_PREAMB4	(1 << 4)
 #define CFG9_PREAMB8	(2 << 4)
 #define CFG9_PREAMB16	(3 << 4)
 #define CFG9_ILOOPBACK	(1 << 6)
 #define CFG9_ELOOPBACK	(1 << 7)
 	unsigned char  cfg_byte10;
 #define CFG10_LINPRI(x)	(x)
 #define CFG10_ACR(x)	(x << 4)
 #define CFG10_BOFMET	(1 << 7)
 	unsigned char  cfg_ifs;
 	unsigned char  cfg_slotl;
 	unsigned char  cfg_byte13;
 #define CFG13_SLOTH(x)	(x)
 #define CFG13_RETRY(x)	(x << 4)
 	unsigned char  cfg_byte14;
 #define CFG14_PROMISC	(1 << 0)
 #define CFG14_DISBRD	(1 << 1)
 #define CFG14_MANCH	(1 << 2)
 #define CFG14_TNCRS	(1 << 3)
 #define CFG14_NOCRC	(1 << 4)
 #define CFG14_CRC16	(1 << 5)
 #define CFG14_BTSTF	(1 << 6)
 #define CFG14_FLGPAD	(1 << 7)
 	unsigned char  cfg_byte15;
 #define CFG15_CSTF(x)	(x)
 #define CFG15_ICSS	(1 << 3)
 #define CFG15_CDTF(x)	(x << 4)
 #define CFG15_ICDS	(1 << 7)
 	unsigned short cfg_minfrmlen;
 } cfg_t;

 typedef struct { /* scb */
 	unsigned short scb_status;	/* status of 82586			*/
 #define SCB_STRXMASK		(7 << 4)	/* Receive unit status		*/
 #define SCB_STRXIDLE		(0 << 4)	/* Idle				*/
 #define SCB_STRXSUSP		(1 << 4)	/* Suspended			*/
 #define SCB_STRXNRES		(2 << 4)	/* No resources			*/
 #define SCB_STRXRDY		(4 << 4)	/* Ready			*/
 #define SCB_STCUMASK		(7 << 8)	/* Command unit status		*/
 #define SCB_STCUIDLE		(0 << 8)	/* Idle				*/
 #define SCB_STCUSUSP		(1 << 8)	/* Suspended			*/
 #define SCB_STCUACTV		(2 << 8)	/* Active			*/
 #define SCB_STRNR		(1 << 12)	/* Receive unit not ready	*/
 #define SCB_STCNA		(1 << 13)	/* Command unit not ready	*/
 #define SCB_STFR		(1 << 14)	/* Frame received		*/
 #define SCB_STCX		(1 << 15)	/* Command completed		*/
 	unsigned short scb_command;	/* Next command				*/
 #define SCB_CMDRXSTART		(1 << 4)	/* Start (at rfa_offset)	*/
 #define SCB_CMDRXRESUME		(2 << 4)	/* Resume reception		*/
 #define SCB_CMDRXSUSPEND	(3 << 4)	/* Suspend reception		*/
 #define SCB_CMDRXABORT		(4 << 4)	/* Abort reception		*/
 #define SCB_CMDCUCSTART		(1 << 8)	/* Start (at cbl_offset)	*/
 #define SCB_CMDCUCRESUME	(2 << 8)	/* Resume execution		*/
 #define SCB_CMDCUCSUSPEND	(3 << 8)	/* Suspend execution		*/
 #define SCB_CMDCUCABORT		(4 << 8)	/* Abort execution		*/
 #define SCB_CMDACKRNR		(1 << 12)	/* Ack RU not ready		*/
 #define SCB_CMDACKCNA		(1 << 13)	/* Ack CU not ready		*/
 #define SCB_CMDACKFR		(1 << 14)	/* Ack Frame received		*/
 #define SCB_CMDACKCX		(1 << 15)	/* Ack Command complete		*/
 	unsigned short scb_cbl_offset;	/* Offset of first command unit		*/
 	unsigned short scb_rfa_offset;	/* Offset of first receive frame area	*/
 	unsigned short scb_crc_errors;	/* Properly aligned frame with CRC error*/
 	unsigned short scb_aln_errors;	/* Misaligned frames			*/
 	unsigned short scb_rsc_errors;	/* Frames lost due to no space		*/
 	unsigned short scb_ovn_errors;	/* Frames lost due to slow bus		*/
 } scb_t;

 typedef struct { /* iscp */
 	unsigned short iscp_busy;	/* set by CPU before CA			*/
 	unsigned short iscp_offset;	/* offset of SCB			*/
 	unsigned short iscp_basel;	/* base of SCB				*/
 	unsigned short iscp_baseh;
 } iscp_t;

     /* this address must be 0xfff6 */
 typedef struct { /* scp */
 	unsigned short scp_sysbus;	/* bus size */
 #define SCP_SY_16BBUS	0x00
 #define SCP_SY_8BBUS	0x01
 	unsigned short scp_junk[2];	/* junk */
 	unsigned short scp_iscpl;	/* lower 16 bits of iscp */
 	unsigned short scp_iscph;	/* upper 16 bits of iscp */
 } scp_t;

 /* commands */
 #define CMD_NOP			0
 #define CMD_SETADDRESS		1
 #define CMD_CONFIG		2
 #define CMD_SETMULTICAST	3
 #define CMD_TX			4
 #define CMD_TDR			5
 #define CMD_DUMP		6
 #define CMD_DIAGNOSE		7

 #define CMD_MASK		7

 #define CMD_INTR		(1 << 13)
 #define CMD_SUSP		(1 << 14)
 #define CMD_EOL			(1 << 15)

 #define STAT_COLLISIONS		(15)
 #define STAT_COLLEXCESSIVE	(1 << 5)
 #define STAT_COLLAFTERTX	(1 << 6)
 #define STAT_TXDEFERRED		(1 << 7)
 #define STAT_TXSLOWDMA		(1 << 8)
 #define STAT_TXLOSTCTS		(1 << 9)
 #define STAT_NOCARRIER		(1 << 10)
 #define STAT_FAIL		(1 << 11)
 #define STAT_ABORTED		(1 << 12)
 #define STAT_OK			(1 << 13)
 #define STAT_BUSY		(1 << 14)
 #define STAT_COMPLETE		(1 << 15)
 #endif
 #endif

 /*
  * Ether1 card definitions:
  *
  * FAST accesses:
  *	+0	Page register
  * 			16 pages
  *	+4	Control
  *			'1' = reset
  *			'2' = loopback
  *			'4' = CA
  *			'8' = int ack
  *
  * RAM at address + 0x2000
  * Pod. Prod id = 3
  * Words after ID block [base + 8 words]
  *	+0 pcb issue (0x0c and 0xf3 invalid)
  *	+1 - +6 eth hw address
  */
	/*
	* linux/drivers/acorn/net/ether1.h
	*
	* Copyright (C) 1996 Russell King
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*
	* Network driver for Acorn Ether1 cards.
	*/

	#ifndef _LINUX_ether1_H
	#define _LINUX_ether1_H

	#ifdef __ETHER1_C
	/* use 0 for production, 1 for verification, >2 for debug */
	#ifndef NET_DEBUG
	#define NET_DEBUG 0
	#endif

	#define priv(dev) ((struct ether1_priv *)netdev_priv(dev))

	/* Page register */
	#define REG_PAGE (priv(dev)->base + 0x0000)

	/* Control register */
	#define REG_CONTROL (priv(dev)->base + 0x0004)
	#define CTRL_RST 0x01
	#define CTRL_LOOPBACK 0x02
	#define CTRL_CA 0x04
	#define CTRL_ACK 0x08

	#define ETHER1_RAM (priv(dev)->base + 0x2000)

	/* HW address */
	#define IDPROM_ADDRESS (priv(dev)->base + 0x0024)

	struct ether1_priv {
	void __iomem *base;
	struct net_device_stats stats;
	unsigned int tx_link;
	unsigned int tx_head;
	volatile unsigned int tx_tail;
	volatile unsigned int rx_head;
	volatile unsigned int rx_tail;
	unsigned char bus_type;
	unsigned char resetting;
	unsigned char initialising : 1;
	unsigned char restart : 1;
	};

	#define I82586_NULL (-1)

	typedef struct { /* tdr */
	unsigned short tdr_status;
	unsigned short tdr_command;
	unsigned short tdr_link;
	unsigned short tdr_result;
	#define TDR_TIME (0x7ff)
	#define TDR_SHORT (1 << 12)
	#define TDR_OPEN (1 << 13)
	#define TDR_XCVRPROB (1 << 14)
	#define TDR_LNKOK (1 << 15)
	} tdr_t;

	typedef struct { /* transmit */
	unsigned short tx_status;
	unsigned short tx_command;
	unsigned short tx_link;
	unsigned short tx_tbdoffset;
	} tx_t;

	typedef struct { /* tbd */
	unsigned short tbd_opts;
	#define TBD_CNT (0x3fff)
	#define TBD_EOL (1 << 15)
	unsigned short tbd_link;
	unsigned short tbd_bufl;
	unsigned short tbd_bufh;
	} tbd_t;

	typedef struct { /* rfd */
	unsigned short rfd_status;
	#define RFD_NOEOF (1 << 6)
	#define RFD_FRAMESHORT (1 << 7)
	#define RFD_DMAOVRN (1 << 8)
	#define RFD_NORESOURCES (1 << 9)
	#define RFD_ALIGNERROR (1 << 10)
	#define RFD_CRCERROR (1 << 11)
	#define RFD_OK (1 << 13)
	#define RFD_FDCONSUMED (1 << 14)
	#define RFD_COMPLETE (1 << 15)
	unsigned short rfd_command;
	#define RFD_CMDSUSPEND (1 << 14)
	#define RFD_CMDEL (1 << 15)
	unsigned short rfd_link;
	unsigned short rfd_rbdoffset;
	unsigned char rfd_dest[6];
	unsigned char rfd_src[6];
	unsigned short rfd_len;
	} rfd_t;

	typedef struct { /* rbd */
	unsigned short rbd_status;
	#define RBD_ACNT (0x3fff)
	#define RBD_ACNTVALID (1 << 14)
	#define RBD_EOF (1 << 15)
	unsigned short rbd_link;
	unsigned short rbd_bufl;
	unsigned short rbd_bufh;
	unsigned short rbd_len;
	} rbd_t;

	typedef struct { /* nop */
	unsigned short nop_status;
	unsigned short nop_command;
	unsigned short nop_link;
	} nop_t;

	typedef struct { /* set multicast */
	unsigned short mc_status;
	unsigned short mc_command;
	unsigned short mc_link;
	unsigned short mc_cnt;
	unsigned char mc_addrs[1][6];
	} mc_t;

	typedef struct { /* set address */
	unsigned short sa_status;
	unsigned short sa_command;
	unsigned short sa_link;
	unsigned char sa_addr[6];
	} sa_t;

	typedef struct { /* config command */
	unsigned short cfg_status;
	unsigned short cfg_command;
	unsigned short cfg_link;
	unsigned char cfg_bytecnt; /* size foll data: 4 - 12 */
	unsigned char cfg_fifolim; /* FIFO threshold */
	unsigned char cfg_byte8;
	#define CFG8_SRDY (1 << 6)
	#define CFG8_SAVEBADF (1 << 7)
	unsigned char cfg_byte9;
	#define CFG9_ADDRLEN(x) (x)
	#define CFG9_ADDRLENBUF (1 << 3)
	#define CFG9_PREAMB2 (0 << 4)
	#define CFG9_PREAMB4 (1 << 4)
	#define CFG9_PREAMB8 (2 << 4)
	#define CFG9_PREAMB16 (3 << 4)
	#define CFG9_ILOOPBACK (1 << 6)
	#define CFG9_ELOOPBACK (1 << 7)
	unsigned char cfg_byte10;
	#define CFG10_LINPRI(x) (x)
	#define CFG10_ACR(x) (x << 4)
	#define CFG10_BOFMET (1 << 7)
	unsigned char cfg_ifs;
	unsigned char cfg_slotl;
	unsigned char cfg_byte13;
	#define CFG13_SLOTH(x) (x)
	#define CFG13_RETRY(x) (x << 4)
	unsigned char cfg_byte14;
	#define CFG14_PROMISC (1 << 0)
	#define CFG14_DISBRD (1 << 1)
	#define CFG14_MANCH (1 << 2)
	#define CFG14_TNCRS (1 << 3)
	#define CFG14_NOCRC (1 << 4)
	#define CFG14_CRC16 (1 << 5)
	#define CFG14_BTSTF (1 << 6)
	#define CFG14_FLGPAD (1 << 7)
	unsigned char cfg_byte15;
	#define CFG15_CSTF(x) (x)
	#define CFG15_ICSS (1 << 3)
	#define CFG15_CDTF(x) (x << 4)
	#define CFG15_ICDS (1 << 7)
	unsigned short cfg_minfrmlen;
	} cfg_t;

	typedef struct { /* scb */
	unsigned short scb_status; /* status of 82586 */
	#define SCB_STRXMASK (7 << 4) /* Receive unit status */
	#define SCB_STRXIDLE (0 << 4) /* Idle */
	#define SCB_STRXSUSP (1 << 4) /* Suspended */
	#define SCB_STRXNRES (2 << 4) /* No resources */
	#define SCB_STRXRDY (4 << 4) /* Ready */
	#define SCB_STCUMASK (7 << 8) /* Command unit status */
	#define SCB_STCUIDLE (0 << 8) /* Idle */
	#define SCB_STCUSUSP (1 << 8) /* Suspended */
	#define SCB_STCUACTV (2 << 8) /* Active */
	#define SCB_STRNR (1 << 12) /* Receive unit not ready */
	#define SCB_STCNA (1 << 13) /* Command unit not ready */
	#define SCB_STFR (1 << 14) /* Frame received */
	#define SCB_STCX (1 << 15) /* Command completed */
	unsigned short scb_command; /* Next command */
	#define SCB_CMDRXSTART (1 << 4) /* Start (at rfa_offset) */
	#define SCB_CMDRXRESUME (2 << 4) /* Resume reception */
	#define SCB_CMDRXSUSPEND (3 << 4) /* Suspend reception */
	#define SCB_CMDRXABORT (4 << 4) /* Abort reception */
	#define SCB_CMDCUCSTART (1 << 8) /* Start (at cbl_offset) */
	#define SCB_CMDCUCRESUME (2 << 8) /* Resume execution */
	#define SCB_CMDCUCSUSPEND (3 << 8) /* Suspend execution */
	#define SCB_CMDCUCABORT (4 << 8) /* Abort execution */
	#define SCB_CMDACKRNR (1 << 12) /* Ack RU not ready */
	#define SCB_CMDACKCNA (1 << 13) /* Ack CU not ready */
	#define SCB_CMDACKFR (1 << 14) /* Ack Frame received */
	#define SCB_CMDACKCX (1 << 15) /* Ack Command complete */
	unsigned short scb_cbl_offset; /* Offset of first command unit */
	unsigned short scb_rfa_offset; /* Offset of first receive frame area */
	unsigned short scb_crc_errors; /* Properly aligned frame with CRC error*/
	unsigned short scb_aln_errors; /* Misaligned frames */
	unsigned short scb_rsc_errors; /* Frames lost due to no space */
	unsigned short scb_ovn_errors; /* Frames lost due to slow bus */
	} scb_t;

	typedef struct { /* iscp */
	unsigned short iscp_busy; /* set by CPU before CA */
	unsigned short iscp_offset; /* offset of SCB */
	unsigned short iscp_basel; /* base of SCB */
	unsigned short iscp_baseh;
	} iscp_t;

	/* this address must be 0xfff6 */
	typedef struct { /* scp */
	unsigned short scp_sysbus; /* bus size */
	#define SCP_SY_16BBUS 0x00
	#define SCP_SY_8BBUS 0x01
	unsigned short scp_junk[2]; /* junk */
	unsigned short scp_iscpl; /* lower 16 bits of iscp */
	unsigned short scp_iscph; /* upper 16 bits of iscp */
	} scp_t;

	/* commands */
	#define CMD_NOP 0
	#define CMD_SETADDRESS 1
	#define CMD_CONFIG 2
	#define CMD_SETMULTICAST 3
	#define CMD_TX 4
	#define CMD_TDR 5
	#define CMD_DUMP 6
	#define CMD_DIAGNOSE 7

	#define CMD_MASK 7

	#define CMD_INTR (1 << 13)
	#define CMD_SUSP (1 << 14)
	#define CMD_EOL (1 << 15)

	#define STAT_COLLISIONS (15)
	#define STAT_COLLEXCESSIVE (1 << 5)
	#define STAT_COLLAFTERTX (1 << 6)
	#define STAT_TXDEFERRED (1 << 7)
	#define STAT_TXSLOWDMA (1 << 8)
	#define STAT_TXLOSTCTS (1 << 9)
	#define STAT_NOCARRIER (1 << 10)
	#define STAT_FAIL (1 << 11)
	#define STAT_ABORTED (1 << 12)
	#define STAT_OK (1 << 13)
	#define STAT_BUSY (1 << 14)
	#define STAT_COMPLETE (1 << 15)
	#endif
	#endif

	/*
	* Ether1 card definitions:
	*
	* FAST accesses:
	* +0 Page register
	* 16 pages
	* +4 Control
	* '1' = reset
	* '2' = loopback
	* '4' = CA
	* '8' = int ack
	*
	* RAM at address + 0x2000
	* Pod. Prod id = 3
	* Words after ID block [base + 8 words]
	* +0 pcb issue (0x0c and 0xf3 invalid)
	* +1 - +6 eth hw address
	*/