The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/ppbus/vpoio.h

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    1 /*-
    2  * Copyright (c) 1998 Nicolas Souchu
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/5.4/sys/dev/ppbus/vpoio.h 70608 2001-01-02 21:29:06Z nsouch $
   27  *
   28  */
   29 #ifndef __VP0IO_H
   30 #define __VP0IO_H
   31 
   32 /*
   33  * The ZIP drive cannot act as an initiator.
   34  */
   35 #define VP0_INITIATOR   0x7
   36 
   37 #define VP0_ESELECT_TIMEOUT     1
   38 #define VP0_ECMD_TIMEOUT        2
   39 #define VP0_ECONNECT            3
   40 #define VP0_ESTATUS_TIMEOUT     4
   41 #define VP0_EDATA_OVERFLOW      5       
   42 #define VP0_EDISCONNECT         6
   43 #define VP0_EPPDATA_TIMEOUT     7
   44 #define VP0_ENEGOCIATE          8
   45 #define VP0_ENOPORT             9
   46 #define VP0_EINITFAILED         10
   47 #define VP0_EINTR               12
   48 
   49 #define VP0_EOTHER              13
   50 
   51 #define VP0_OPENNINGS   1
   52 
   53 /*
   54  * Data structure used during microsequence execution
   55  * when characters are received in nibble mode
   56  */
   57 struct vpo_nibble {
   58         char h;                 /* most significant nibble */
   59         char l;                 /* less significant nibble */
   60 };
   61 
   62 /* Mode found during initialisation */
   63 #define VP0_MODE_UNDEFINED      0x0
   64 #define VP0_MODE_NIBBLE         0x1
   65 #define VP0_MODE_PS2            0x2
   66 #define VP0_MODE_EPP            0x3
   67 
   68 struct vpoio_data {
   69         unsigned short int vpo_unit;
   70         int vpo_mode_found;             /* Mode found during init */
   71 
   72         struct vpo_nibble vpo_nibble;
   73 
   74         /* each device must have its own nibble inbyte microsequence */
   75         struct ppb_microseq *vpo_nibble_inbyte_msq;
   76 
   77         device_t vpo_dev;
   78 };
   79 
   80 #define vpoio_set_unit(vpo,unit) ((vpo)->vpo_unit = unit)
   81 
   82 int vpoio_probe(device_t dev, struct vpoio_data *vpo);
   83 
   84 int vpoio_attach(struct vpoio_data *vpo);
   85 int vpoio_reset_bus(struct vpoio_data *vpo);
   86 
   87 int vpoio_do_scsi(struct vpoio_data *vpo, int host, int target, char *command,
   88                 int clen, char *buffer, int blen, int *result, int *count,
   89                 int *ret);
   90 
   91 int imm_probe(device_t dev, struct vpoio_data *vpo);
   92 
   93 int imm_attach(struct vpoio_data *vpo);
   94 int imm_reset_bus(struct vpoio_data *vpo);
   95 
   96 int imm_do_scsi(struct vpoio_data *vpo, int host, int target, char *command,
   97                 int clen, char *buffer, int blen, int *result, int *count,
   98                 int *ret);
   99 
  100 #endif

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