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) 2004-2005 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  * 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/9.0/sys/dev/fdc/fdcvar.h 140469 2005-01-19 07:46:38Z imp $
   27  */
   28 
   29 /* XXX should audit this file to see if additional copyrights needed */
   30 
   31 enum fdc_type {
   32         FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1
   33 };
   34 
   35 /*
   36  * Per controller structure (softc).
   37  */
   38 struct fdc_data {
   39         int     fdcu;           /* our unit number */
   40         int     dmachan;
   41         int     flags;
   42 #define FDC_HASDMA      0x01
   43 #define FDC_STAT_VALID  0x08
   44 #define FDC_HAS_FIFO    0x10
   45 #define FDC_NEEDS_RESET 0x20
   46 #define FDC_NODMA       0x40    /* Don't do DMA */
   47 #define FDC_NOFAST      0x80    /* Don't register isr as a fast one */
   48 #define FDC_KTHREAD_EXIT        0x1000 /* request worker thread to stop */
   49 #define FDC_KTHREAD_ALIVE       0x2000 /* worker thread is alive */
   50         struct  fd_data *fd;    /* The active drive */
   51         int     retry;
   52         int     fdout;          /* mirror of the w/o digital output reg */
   53         u_int   status[7];      /* copy of the registers */
   54         enum    fdc_type fdct;  /* chip version of FDC */
   55         int     fdc_errs;       /* number of logged errors */
   56         struct  bio_queue_head head;
   57         struct  bio *bp;        /* active buffer */
   58         struct  resource *res_irq, *res_drq;
   59         int     rid_irq, rid_drq;
   60 #define FDC_MAXREG      8
   61         int     ridio[FDC_MAXREG];
   62         struct  resource *resio[FDC_MAXREG];
   63         bus_space_tag_t iot;
   64         bus_space_handle_t ioh[FDC_MAXREG];
   65         int     ioff[FDC_MAXREG];
   66         void    *fdc_intr;
   67         struct  device *fdc_dev;
   68         struct mtx fdc_mtx;
   69         struct proc *fdc_thread;
   70 };
   71 
   72 extern devclass_t fdc_devclass;
   73 
   74 enum fdc_device_ivars {
   75         FDC_IVAR_FDUNIT,
   76         FDC_IVAR_FDTYPE,
   77 };
   78 
   79 __BUS_ACCESSOR(fdc, fdunit, FDC, FDUNIT, int);
   80 __BUS_ACCESSOR(fdc, fdtype, FDC, FDTYPE, int);
   81 
   82 void fdc_release_resources(struct fdc_data *);
   83 int fdc_attach(device_t);
   84 int fdc_hints_probe(device_t);
   85 int fdc_detach(device_t dev);
   86 device_t fdc_add_child(device_t, const char *, int);
   87 int fdc_initial_reset(device_t, struct fdc_data *);
   88 int fdc_print_child(device_t, device_t);
   89 int fdc_read_ivar(device_t, device_t, int, uintptr_t *);
   90 int fdc_write_ivar(device_t, device_t, int, uintptr_t);
   91 int fdc_isa_alloc_resources(device_t, struct fdc_data *);

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