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/fdc/fdcvar.h

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    1 /*-
    2  * Copyright (c) 2004 M. Warner Losh.
    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  *    without modification, immediately at the beginning of the file.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in
   13  *    the documentation and/or other materials provided with the
   14  *    distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
   20  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  *
   28  * $FreeBSD: releng/5.3/sys/dev/fdc/fdcvar.h 135415 2004-09-18 04:57:55Z imp $
   29  */
   30 
   31 /* XXX should audit this file to see if additional copyrights needed */
   32 
   33 enum fdc_type {
   34         FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1
   35 };
   36 
   37 /*
   38  * Per controller structure (softc).
   39  */
   40 struct fdc_data {
   41         int     fdcu;           /* our unit number */
   42         int     dmachan;
   43         int     flags;
   44 #define FDC_HASDMA      0x01
   45 #define FDC_STAT_VALID  0x08
   46 #define FDC_HAS_FIFO    0x10
   47 #define FDC_NEEDS_RESET 0x20
   48 #define FDC_NODMA       0x40
   49         struct  fd_data *fd;    /* The active drive */
   50         int     retry;
   51         int     fdout;          /* mirror of the w/o digital output reg */
   52         u_int   status[7];      /* copy of the registers */
   53         enum    fdc_type fdct;  /* chip version of FDC */
   54         int     fdc_errs;       /* number of logged errors */
   55         struct  bio_queue_head head;
   56         struct  bio *bp;        /* active buffer */
   57         struct  resource *res_ioport, *res_sts, *res_ctl, *res_irq, *res_drq;
   58         int     rid_ioport, rid_sts, rid_ctl, rid_irq, rid_drq;
   59         bus_space_tag_t portt;
   60         bus_space_handle_t porth;
   61         bus_space_tag_t stst;
   62         bus_space_handle_t stsh;
   63         bus_space_tag_t ctlt;
   64         bus_space_handle_t ctlh;
   65         int     port_off;
   66         int     ctl_off;
   67         int     sts_off;
   68         void    *fdc_intr;
   69         struct  device *fdc_dev;
   70         struct mtx fdc_mtx;
   71         struct proc *fdc_thread;
   72 };
   73 
   74 extern devclass_t fdc_devclass;
   75 
   76 enum fdc_device_ivars {
   77         FDC_IVAR_FDUNIT,
   78         FDC_IVAR_FDTYPE,
   79 };
   80 
   81 __BUS_ACCESSOR(fdc, fdunit, FDC, FDUNIT, int);
   82 __BUS_ACCESSOR(fdc, fdtype, FDC, FDTYPE, int);
   83 
   84 void fdc_release_resources(struct fdc_data *);
   85 int fdc_attach(device_t);
   86 int fdc_hints_probe(device_t);
   87 int fdc_detach(device_t dev);
   88 device_t fdc_add_child(device_t, const char *, int);
   89 int fdc_initial_reset(device_t, struct fdc_data *);
   90 int fdc_print_child(device_t, device_t);
   91 int fdc_read_ivar(device_t, device_t, int, uintptr_t *);
   92 int fdc_write_ivar(device_t, device_t, int, uintptr_t);
   93 int fdc_isa_alloc_resources(device_t, struct fdc_data *);

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