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/*
* 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;
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
*/
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