FreeBSD/Linux Kernel Cross Reference
sys/i386/isa/if_epreg.h

     /*
      * Copyright (c) 1993 Herb Peyerl (hpeyerl@novatel.ca) All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions are
      * met: 1. Redistributions of source code must retain the above copyright
      * notice, this list of conditions and the following disclaimer. 2. The name
      * of the author may not be used to endorse or promote products derived from
      * this software without specific prior written permission
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
     * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     *
     * if_epreg.h,v 1.4 1994/11/13 10:12:37 gibbs Exp Modified by:
     *
     October 2, 1994
    
     Modified by: Andres Vega Garcia
    
     INRIA - Sophia Antipolis, France
     e-mail: avega@sophia.inria.fr
     finger: avega@pax.inria.fr
    
     */
    /*
     * $FreeBSD: src/sys/i386/isa/if_epreg.h,v 1.17.2.4 1999/09/05 08:12:50 peter Exp $
     *
     *  Promiscuous mode added and interrupt logic slightly changed
     *  to reduce the number of adapter failures. Transceiver select
     *  logic changed to use value from EEPROM. Autoconfiguration
     *  features added.
     *  Done by:
     *          Serge Babkin
     *          Chelindbank (Chelyabinsk, Russia)
     *          babkin@hq.icb.chel.su
     */
    
    /*
     * Pccard support for 3C589 by:
     *              HAMADA Naoki
     *              nao@tom-yam.or.jp
     */
    
    /*
     * Ethernet software status per interface.
     */
    struct ep_softc {
        struct arpcom arpcom;       /* Ethernet common part          */
        int ep_io_addr;             /* i/o bus address               */
        struct mbuf *top, *mcur;
        short cur_len;
        u_short ep_connectors;      /* Connectors on this card.      */
        u_char ep_connector;        /* Configured connector.         */
        int stat;                   /* some flags */
        int gone;                   /* adapter is not present (for PCCARD) */
    #define         F_RX_FIRST   0x1
    #define         F_PROMISC    0x8
    
    #define         F_ACCESS_32_BITS 0x100
    
        struct ep_board *epb;
    
        int unit;
    
    #ifdef  EP_LOCAL_STATS
        short tx_underrun;
        short rx_no_first;
        short rx_no_mbuf;
        short rx_bpf_disc;
        short rx_overrunf;
        short rx_overrunl;
    #endif
    };
    
    struct ep_board {
            int epb_addr;   /* address of this board */
            char epb_used;  /* was this entry already used for configuring ? */
                                    /* data from EEPROM for later use */
            u_short eth_addr[3];    /* Ethernet address */
            u_short prod_id;        /* product ID */
            u_short res_cfg;        /* resource configuration */
    };
    
    
    /*
     * Some global constants
     */
    #define TX_INIT_RATE         16
    #define TX_INIT_MAX_RATE     64
    #define RX_INIT_LATENCY      64
    #define RX_INIT_EARLY_THRESH 208 /* not less than MINCLSIZE */
   #define RX_NEXT_EARLY_THRESH 500
   
   #define EEPROMSIZE      0x40
   #define MAX_EEPROMBUSY  1000
   #define EP_LAST_TAG     0xd7
   #define EP_MAX_BOARDS   16
   /*
    * This `ID' port is a mere hack.  There's currently no chance to register
    * it with config's idea of the ports that are in use.
    *
    * "After the automatic configuration is completed, the IDS is in it's initial
    * state (ID-WAIT), and it monitors all write access to I/O port 01x0h, where
    * 'x' is any hex digit.  If a zero is written to any one of these ports, then
    * that address is remembered and becomes the ID port.  A second zero written
    * to that port resets the ID sequence to its initial state.  The IDS watches
    * for the ID sequence to be written to the ID port."
    *
    * We prefer 0x110 over 0x100 so to not conflict with the Plaque&Pray
    * ports.
    */
   #define EP_ID_PORT      0x110
   #define EP_IOSIZE       16      /* 16 bytes of I/O space used. */
   
   /*
    * some macros to acces long named fields
    */
   #define IS_BASE (is->id_iobase)
   #define BASE    (sc->ep_io_addr)
   
   /*
    * Commands to read/write EEPROM trough EEPROM command register (Window 0,
    * Offset 0xa)
    */
   #define EEPROM_CMD_RD    0x0080 /* Read:  Address required (5 bits) */
   #define EEPROM_CMD_WR    0x0040 /* Write: Address required (5 bits) */
   #define EEPROM_CMD_ERASE 0x00c0 /* Erase: Address required (5 bits) */
   #define EEPROM_CMD_EWEN  0x0030 /* Erase/Write Enable: No data required */
   
   #define EEPROM_BUSY             (1<<15)
   #define EEPROM_TST_MODE         (1<<14)
   
   /*
    * Some short functions, worth to let them be a macro
    */
   #define is_eeprom_busy(b) (inw((b)+EP_W0_EEPROM_COMMAND)&EEPROM_BUSY)
   #define GO_WINDOW(x)      outw(BASE+EP_COMMAND, WINDOW_SELECT|(x))
   
   /**************************************************************************
    *                                                                        *
    * These define the EEPROM data structure.  They are used in the probe
    * function to verify the existence of the adapter after having sent
    * the ID_Sequence.
    *
    * There are others but only the ones we use are defined here.
    *
    **************************************************************************/
   
   #define EEPROM_NODE_ADDR_0      0x0     /* Word */
   #define EEPROM_NODE_ADDR_1      0x1     /* Word */
   #define EEPROM_NODE_ADDR_2      0x2     /* Word */
   #define EEPROM_PROD_ID          0x3     /* 0x9[0-f]50 */
   #define EEPROM_MFG_ID           0x7     /* 0x6d50 */
   #define EEPROM_ADDR_CFG         0x8     /* Base addr */
   #define EEPROM_RESOURCE_CFG     0x9     /* IRQ. Bits 12-15 */
   
   /**************************************************************************
    *                                                                                *
    * These are the registers for the 3Com 3c509 and their bit patterns when *
    * applicable.  They have been taken out the the "EtherLink III Parallel  *
    * Tasking EISA and ISA Technical Reference" "Beta Draft 10/30/92" manual *
    * from 3com.                                                             *
    *                                                                                *
    **************************************************************************/
   
   #define EP_COMMAND              0x0e    /* Write. BASE+0x0e is always a
                                            * command reg. */
   #define EP_STATUS               0x0e    /* Read. BASE+0x0e is always status
                                            * reg. */
   #define EP_WINDOW               0x0f    /* Read. BASE+0x0f is always window
                                            * reg. */
   /*
    * Window 0 registers. Setup.
    */
   /* Write */
   #define EP_W0_EEPROM_DATA       0x0c
   #define EP_W0_EEPROM_COMMAND    0x0a
   #define EP_W0_RESOURCE_CFG      0x08
   #define EP_W0_ADDRESS_CFG       0x06
   #define EP_W0_CONFIG_CTRL       0x04
   /* Read */
   #define EP_W0_PRODUCT_ID        0x02
   #define EP_W0_MFG_ID            0x00
   
   /*
    * Window 1 registers. Operating Set.
    */
   /* Write */
   #define EP_W1_TX_PIO_WR_2       0x02
   #define EP_W1_TX_PIO_WR_1       0x00
   /* Read */
   #define EP_W1_FREE_TX           0x0c
   #define EP_W1_TX_STATUS         0x0b    /* byte */
   #define EP_W1_TIMER             0x0a    /* byte */
   #define EP_W1_RX_STATUS         0x08
   #define EP_W1_RX_PIO_RD_2       0x02
   #define EP_W1_RX_PIO_RD_1       0x00
   
   /*
    * Window 2 registers. Station Address Setup/Read
    */
   /* Read/Write */
   #define EP_W2_ADDR_5            0x05
   #define EP_W2_ADDR_4            0x04
   #define EP_W2_ADDR_3            0x03
   #define EP_W2_ADDR_2            0x02
   #define EP_W2_ADDR_1            0x01
   #define EP_W2_ADDR_0            0x00
   
   /*
    * Window 3 registers.  FIFO Management.
    */
   /* Read */
   #define EP_W3_FREE_TX           0x0c
   #define EP_W3_FREE_RX           0x0a
   
   /*
    * Window 4 registers. Diagnostics.
    */
   /* Read/Write */
   #define EP_W4_MEDIA_TYPE        0x0a
   #define EP_W4_CTRLR_STATUS      0x08
   #define EP_W4_NET_DIAG          0x06
   #define EP_W4_FIFO_DIAG         0x04
   #define EP_W4_HOST_DIAG         0x02
   #define EP_W4_TX_DIAG           0x00
   
   /*
    * Window 5 Registers.  Results and Internal status.
    */
   /* Read */
   #define EP_W5_READ_0_MASK       0x0c
   #define EP_W5_INTR_MASK         0x0a
   #define EP_W5_RX_FILTER         0x08
   #define EP_W5_RX_EARLY_THRESH   0x06
   #define EP_W5_TX_AVAIL_THRESH   0x02
   #define EP_W5_TX_START_THRESH   0x00
   
   /*
    * Window 6 registers. Statistics.
    */
   /* Read/Write */
   #define TX_TOTAL_OK             0x0c
   #define RX_TOTAL_OK             0x0a
   #define TX_DEFERRALS            0x08
   #define RX_FRAMES_OK            0x07
   #define TX_FRAMES_OK            0x06
   #define RX_OVERRUNS             0x05
   #define TX_COLLISIONS           0x04
   #define TX_AFTER_1_COLLISION    0x03
   #define TX_AFTER_X_COLLISIONS   0x02
   #define TX_NO_SQE               0x01
   #define TX_CD_LOST              0x00
   
   /****************************************
    *
    * Register definitions.
    *
    ****************************************/
   
   /*
    * Command register. All windows.
    *
    * 16 bit register.
    *     15-11:  5-bit code for command to be executed.
    *     10-0:   11-bit arg if any. For commands with no args;
    *            this can be set to anything.
    */
   #define GLOBAL_RESET            (u_short) 0x0000        /* Wait at least 1ms
                                                            * after issuing */
   #define WINDOW_SELECT           (u_short) (0x1<<11)
   #define START_TRANSCEIVER       (u_short) (0x2<<11)     /* Read ADDR_CFG reg to
                                                            * determine whether
                                                            * this is needed. If
                                                            * so; wait 800 uSec
                                                            * before using trans-
                                                            * ceiver. */
   #define RX_DISABLE              (u_short) (0x3<<11)     /* state disabled on
                                                            * power-up */
   #define RX_ENABLE               (u_short) (0x4<<11)
   #define RX_RESET                (u_short) (0x5<<11)
   #define RX_DISCARD_TOP_PACK     (u_short) (0x8<<11)
   #define TX_ENABLE               (u_short) (0x9<<11)
   #define TX_DISABLE              (u_short) (0xa<<11)
   #define TX_RESET                (u_short) (0xb<<11)
   #define REQ_INTR                (u_short) (0xc<<11)
   #define SET_INTR_MASK           (u_short) (0xe<<11)
   #define SET_RD_0_MASK           (u_short) (0xf<<11)
   #define SET_RX_FILTER           (u_short) (0x10<<11)
   #define FIL_INDIVIDUAL  (u_short) (0x1)
   #define FIL_GROUP               (u_short) (0x2)
   #define FIL_BRDCST      (u_short) (0x4)
   #define FIL_ALL         (u_short) (0x8)
   #define SET_RX_EARLY_THRESH     (u_short) (0x11<<11)
   #define SET_TX_AVAIL_THRESH     (u_short) (0x12<<11)
   #define SET_TX_START_THRESH     (u_short) (0x13<<11)
   #define STATS_ENABLE            (u_short) (0x15<<11)
   #define STATS_DISABLE           (u_short) (0x16<<11)
   #define STOP_TRANSCEIVER        (u_short) (0x17<<11)
   /*
    * The following C_* acknowledge the various interrupts. Some of them don't
    * do anything.  See the manual.
    */
   #define ACK_INTR                (u_short) (0x6800)
   #define C_INTR_LATCH    (u_short) (ACK_INTR|0x1)
   #define C_CARD_FAILURE  (u_short) (ACK_INTR|0x2)
   #define C_TX_COMPLETE   (u_short) (ACK_INTR|0x4)
   #define C_TX_AVAIL      (u_short) (ACK_INTR|0x8)
   #define C_RX_COMPLETE   (u_short) (ACK_INTR|0x10)
   #define C_RX_EARLY      (u_short) (ACK_INTR|0x20)
   #define C_INT_RQD               (u_short) (ACK_INTR|0x40)
   #define C_UPD_STATS     (u_short) (ACK_INTR|0x80)
   #define C_MASK  (u_short) 0xFF /* mask of C_* */
   
   /*
    * Status register. All windows.
    *
    *     15-13:  Window number(0-7).
    *     12:     Command_in_progress.
    *     11:     reserved.
    *     10:     reserved.
    *     9:      reserved.
    *     8:      reserved.
    *     7:      Update Statistics.
    *     6:      Interrupt Requested.
    *     5:      RX Early.
    *     4:      RX Complete.
    *     3:      TX Available.
    *     2:      TX Complete.
    *     1:      Adapter Failure.
    *     0:      Interrupt Latch.
    */
   #define S_INTR_LATCH            (u_short) (0x1)
   #define S_CARD_FAILURE          (u_short) (0x2)
   #define S_TX_COMPLETE           (u_short) (0x4)
   #define S_TX_AVAIL              (u_short) (0x8)
   #define S_RX_COMPLETE           (u_short) (0x10)
   #define S_RX_EARLY              (u_short) (0x20)
   #define S_INT_RQD               (u_short) (0x40)
   #define S_UPD_STATS             (u_short) (0x80)
   #define S_MASK  (u_short) 0xFF /* mask of S_* */
   #define S_5_INTS                (S_CARD_FAILURE|S_TX_COMPLETE|\
                                    S_TX_AVAIL|S_RX_COMPLETE|S_RX_EARLY)
   #define S_COMMAND_IN_PROGRESS   (u_short) (0x1000)
   
   /* Address Config. Register.
    * Window 0/Port 06
    */
   
   #define ACF_CONNECTOR_BITS      14
   #define ACF_CONNECTOR_UTP       0
   #define ACF_CONNECTOR_AUI       1
   #define ACF_CONNECTOR_BNC       3
   
   /* Resource configuration register.
    * Window 0/Port 08
    *
    */
   
   #define SET_IRQ(base,irq)     outw((base) + EP_W0_RESOURCE_CFG, \
                                 ((inw((base) + EP_W0_RESOURCE_CFG) & 0x0fff) | \
                                 ((u_short)(irq)<<12))  ) /* set IRQ i */
   
   /*
    * FIFO Registers.
    * RX Status. Window 1/Port 08
    *
    *     15:     Incomplete or FIFO empty.
    *     14:     1: Error in RX Packet   0: Incomplete or no error.
    *     13-11:  Type of error.
    *            1000 = Overrun.
    *            1011 = Run Packet Error.
    *            1100 = Alignment Error.
    *            1101 = CRC Error.
    *            1001 = Oversize Packet Error (>1514 bytes)
    *            0010 = Dribble Bits.
    *            (all other error codes, no errors.)
    *
    *     10-0:   RX Bytes (0-1514)
    */
   #define ERR_RX_INCOMPLETE  (u_short) (0x1<<15)
   #define ERR_RX             (u_short) (0x1<<14)
   #define ERR_RX_OVERRUN     (u_short) (0x8<<11)
   #define ERR_RX_RUN_PKT     (u_short) (0xb<<11)
   #define ERR_RX_ALIGN       (u_short) (0xc<<11)
   #define ERR_RX_CRC         (u_short) (0xd<<11)
   #define ERR_RX_OVERSIZE    (u_short) (0x9<<11)
   #define ERR_RX_DRIBBLE     (u_short) (0x2<<11)
   
   /*
    * FIFO Registers.
    * TX Status. Window 1/Port 0B
    *
    *   Reports the transmit status of a completed transmission. Writing this
    *   register pops the transmit completion stack.
    *
    *   Window 1/Port 0x0b.
    *
    *     7:      Complete
    *     6:      Interrupt on successful transmission requested.
    *     5:      Jabber Error (TP Only, TX Reset required. )
    *     4:      Underrun (TX Reset required. )
    *     3:      Maximum Collisions.
    *     2:      TX Status Overflow.
    *     1-0:    Undefined.
    *
    */
   #define TXS_COMPLETE            0x80
   #define TXS_SUCCES_INTR_REQ             0x40
   #define TXS_JABBER              0x20
   #define TXS_UNDERRUN            0x10
   #define TXS_MAX_COLLISION       0x8
   #define TXS_STATUS_OVERFLOW     0x4
   
   /*
    * Configuration control register.
    * Window 0/Port 04
    */
   /* Read */
   #define IS_AUI                          (1<<13)
   #define IS_BNC                          (1<<12)
   #define IS_UTP                          (1<<9)
   /* Write */
   #define ENABLE_DRQ_IRQ                  0x0001
   #define W0_P4_CMD_RESET_ADAPTER       0x4
   #define W0_P4_CMD_ENABLE_ADAPTER      0x1
   /*
    * Media type and status.
    * Window 4/Port 0A
    */
   #define ENABLE_UTP                      0xc0
   #define DISABLE_UTP                     0x0
   
   /*
    * Misc defines for various things.
    */
   #define ACTIVATE_ADAPTER_TO_CONFIG      0xff /* to the id_port */
   #define MFG_ID                          0x6d50 /* in EEPROM and W0 ADDR_CONFIG */
   #define PROD_ID                         0x9150
   
   #define AUI                             0x1
   #define BNC                             0x2
   #define UTP                             0x4
   
   #define RX_BYTES_MASK                   (u_short) (0x07ff)
   
   extern  struct ep_board ep_board[];
   extern  int ep_boards;
   extern  u_long ep_unit;
   extern  struct ep_softc *ep_alloc __P((int unit, struct ep_board *epb));
   extern  void ep_free __P((struct ep_softc *sc));
   extern  void  ep_intr __P((void *sc));
   extern  int ep_attach __P((struct ep_softc *sc));
   
   extern  u_int16_t get_e __P((struct ep_softc *sc, int offset));

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