FreeBSD/Linux Kernel Cross Reference
sys/dev/vx/if_vxreg.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.
     *
     October 2, 1994
    
     Modified by: Andres Vega Garcia
    
     INRIA - Sophia Antipolis, France
     e-mail: avega@sophia.inria.fr
     finger: avega@pax.inria.fr
    
     */
    
    /*
     * Created from if_epreg.h by Fred Gray (fgray@rice.edu) to support the
     * 3c590 family.
     */
    
    /*
     *  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
     */
    
    /*
     * Ethernet software status per interface.
     */
    struct vx_softc {
        struct arpcom arpcom;       /* Ethernet common part         */
        int unit;                   /* unit number */
        u_int vx_io_addr;           /* i/o bus address              */
    #define MAX_MBS  8              /* # of mbufs we keep around    */
        struct mbuf *mb[MAX_MBS];   /* spare mbuf storage.          */
        int next_mb;                /* Which mbuf to use next.      */
        int last_mb;                /* Last mbuf.                   */
        char vx_connectors;         /* Connectors on this card.     */
        char vx_connector;          /* Connector to use.            */
        short tx_start_thresh;      /* Current TX_start_thresh.     */
        int tx_succ_ok;             /* # packets sent in sequence   */
                                    /* w/o underrun                 */
        struct callout_handle ch;   /* Callout handle for timeouts  */
        int buffill_pending;
    };
    
    /*
     * Some global constants
     */
    
    #define TX_INIT_RATE         16
    #define TX_INIT_MAX_RATE     64
    #define RX_INIT_LATENCY      64
    #define RX_INIT_EARLY_THRESH 64
    #define MIN_RX_EARLY_THRESHF   16 /* not less than ether_header */
    #define MIN_RX_EARLY_THRESHL   4
    
    #define EEPROMSIZE      0x40
    #define MAX_EEPROMBUSY  1000
    #define VX_LAST_TAG     0xd7
    #define VX_MAX_BOARDS   16
    #define VX_ID_PORT      0x100
    
    /*
     * some macros to acces long named fields
     */
    #define BASE    (sc->vx_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)
   
   /*
    * Some short functions, worth to let them be a macro
    */
   
   /**************************************************************************
    *                                                                        *
    * 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 */
   #define EEPROM_OEM_ADDR_0       0xa     /* Word */
   #define EEPROM_OEM_ADDR_1       0xb     /* Word */
   #define EEPROM_OEM_ADDR_2       0xc     /* Word */
   #define EEPROM_SOFT_INFO_2      0xf     /* Software information 2 */
   
   #define NO_RX_OVN_ANOMALY       (1<<5)
   
   /**************************************************************************
    *                                                                                *
    * 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 VX_COMMAND              0x0e    /* Write. BASE+0x0e is always a
                                            * command reg. */
   #define VX_STATUS               0x0e    /* Read. BASE+0x0e is always status
                                            * reg. */
   #define VX_WINDOW               0x0f    /* Read. BASE+0x0f is always window
                                            * reg. */
   /*
    * Window 0 registers. Setup.
    */
   /* Write */
   #define VX_W0_EEPROM_DATA       0x0c
   #define VX_W0_EEPROM_COMMAND    0x0a
   #define VX_W0_RESOURCE_CFG      0x08
   #define VX_W0_ADDRESS_CFG       0x06 
   #define VX_W0_CONFIG_CTRL       0x04
           /* Read */
   #define VX_W0_PRODUCT_ID        0x02
   #define VX_W0_MFG_ID            0x00
   
   
   /*
    * Window 1 registers. Operating Set.
    */
   /* Write */
   #define VX_W1_TX_PIO_WR_2       0x02
   #define VX_W1_TX_PIO_WR_1       0x00
   /* Read */
   #define VX_W1_FREE_TX           0x0c
   #define VX_W1_TX_STATUS         0x0b    /* byte */
   #define VX_W1_TIMER             0x0a    /* byte */
   #define VX_W1_RX_STATUS         0x08
   #define VX_W1_RX_PIO_RD_2       0x02
   #define VX_W1_RX_PIO_RD_1       0x00
   
   /*
    * Window 2 registers. Station Address Setup/Read
    */
   /* Read/Write */
   #define VX_W2_ADDR_5            0x05
   #define VX_W2_ADDR_4            0x04
   #define VX_W2_ADDR_3            0x03
   #define VX_W2_ADDR_2            0x02
   #define VX_W2_ADDR_1            0x01
   #define VX_W2_ADDR_0            0x00
   
   /*
    * Window 3 registers. FIFO Management.
    */
   /* Read */
   #define VX_W3_INTERNAL_CFG      0x00
   #define VX_W3_RESET_OPT         0x08
   #define VX_W3_FREE_TX           0x0c
   #define VX_W3_FREE_RX           0x0a
   
   /*
    * Window 4 registers. Diagnostics.
    */
   /* Read/Write */
   #define VX_W4_MEDIA_TYPE        0x0a
   #define VX_W4_CTRLR_STATUS      0x08
   #define VX_W4_NET_DIAG          0x06
   #define VX_W4_FIFO_DIAG         0x04
   #define VX_W4_HOST_DIAG         0x02
   #define VX_W4_TX_DIAG           0x00
   
   /*
    * Window 5 Registers.  Results and Internal status.
    */
   /* Read */
   #define VX_W5_READ_0_MASK       0x0c
   #define VX_W5_INTR_MASK         0x0a
   #define VX_W5_RX_FILTER         0x08
   #define VX_W5_RX_EARLY_THRESH   0x06
   #define VX_W5_TX_AVAIL_THRESH   0x02
   #define VX_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)
   /*
    * 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 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_MULTICAST     (u_short) (0x02)
   #       define FIL_BRDCST        (u_short) (0x04)
   #       define FIL_PROMISC       (u_short) (0x08)
   #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)
   
   /*
    * 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_COMMAND_IN_PROGRESS   (u_short) (0x1000)
   
   #define VX_BUSY_WAIT while (inw(BASE + VX_STATUS) & S_COMMAND_IN_PROGRESS)
   
   /* 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
      
   #define INTERNAL_CONNECTOR_BITS 20
   #define INTERNAL_CONNECTOR_MASK 0x01700000
   
   /*
    * FIFO Registers. RX Status.
    *
    *     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_INCOMPLETE  (u_short) (0x8000)
   #define ERR_RX          (u_short) (0x4000)
   #define ERR_MASK        (u_short) (0x7800)
   #define ERR_OVERRUN     (u_short) (0x4000)
   #define ERR_RUNT        (u_short) (0x5800)
   #define ERR_ALIGNMENT   (u_short) (0x6000)
   #define ERR_CRC         (u_short) (0x6800)
   #define ERR_OVERSIZE    (u_short) (0x4800)
   #define ERR_DRIBBLE     (u_short) (0x1000)
   
   /*
    * TX Status. 
    *
    *   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_INTR_REQ            0x40
   #define TXS_JABBER              0x20
   #define TXS_UNDERRUN            0x10
   #define TXS_MAX_COLLISION       0x8
   #define TXS_STATUS_OVERFLOW     0x4
   
   #define RS_AUI                  (1<<5)
   #define RS_BNC                  (1<<4)
   #define RS_UTP                  (1<<3)
   #define RS_T4                   (1<<0)
   #define RS_TX                   (1<<1)
   #define RS_FX                   (1<<2)
   #define RS_MII                  (1<<6)
   
   
   /*
    * FIFO Status (Window 4)
    *
    *   Supports FIFO diagnostics
    *
    *   Window 4/Port 0x04.1
    *
    *     15:      1=RX receiving (RO). Set when a packet is being received
    *              into the RX FIFO.
    *     14:      Reserved
    *     13:      1=RX underrun (RO). Generates Adapter Failure interrupt.
    *              Requires RX Reset or Global Reset command to recover.
    *              It is generated when you read past the end of a packet -
    *              reading past what has been received so far will give bad
    *              data.
    *     12:      1=RX status overrun (RO). Set when there are already 8
    *              packets in the RX FIFO. While this bit is set, no additional
    *              packets are received. Requires no action on the part of
    *              the host. The condition is cleared once a packet has been
    *              read out of the RX FIFO.
    *     11:      1=RX overrun (RO). Set when the RX FIFO is full (there
    *              may not be an overrun packet yet). While this bit is set,
    *              no additional packets will be received (some additional
    *              bytes can still be pending between the wire and the RX
    *              FIFO). Requires no action on the part of the host. The
    *              condition is cleared once a few bytes have been read out
    *              from the RX FIFO.
    *     10:      1=TX overrun (RO). Generates adapter failure interrupt.
    *              Requires TX Reset or Global Reset command to recover.
    *              Disables Transmitter.
    *     9-8:     Unassigned.
    *     7-0:     Built in self test bits for the RX and TX FIFO's.
    */
   #define FIFOS_RX_RECEIVING      (u_short) 0x8000
   #define FIFOS_RX_UNDERRUN       (u_short) 0x2000
   #define FIFOS_RX_STATUS_OVERRUN (u_short) 0x1000
   #define FIFOS_RX_OVERRUN        (u_short) 0x0800
   #define FIFOS_TX_OVERRUN        (u_short) 0x0400
   
   /*
    * Misc defines for various things.
    */
   #define TAG_ADAPTER                     0xd0
   #define ACTIVATE_ADAPTER_TO_CONFIG      0xff
   #define ENABLE_DRQ_IRQ                  0x0001
   #define MFG_ID                          0x506d  /* `TCM' */
   #define PROD_ID                         0x5090
   #define GO_WINDOW(x)            outw(BASE+VX_COMMAND, WINDOW_SELECT|(x))
   #define JABBER_GUARD_ENABLE     0x40
   #define LINKBEAT_ENABLE         0x80
   #define ENABLE_UTP              (JABBER_GUARD_ENABLE | LINKBEAT_ENABLE)
   #define DISABLE_UTP             0x0
   #define RX_BYTES_MASK           (u_short) (0x07ff)
   #define TX_INDICATE             1<<15
   
   #define VX_IOSIZE       0x20
   
   #define VX_CONNECTORS 8
   
   extern struct vx_softc *vx_softc[];
   extern u_long vx_count;
   extern struct vx_softc *vxalloc __P((int));
   extern void vxfree __P((struct vx_softc *));
   extern int vxattach __P((struct vx_softc *));
   extern void vxstop __P((struct vx_softc *));
   extern void vxintr __P((void *));
   extern int vxbusyeeprom __P((struct vx_softc *));

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