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  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2004-2005 M. Warner Losh <imp@FreeBSD.org>
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  *
   27  * $FreeBSD$
   28  */
   29 
   30 /* XXX should audit this file to see if additional copyrights needed */
   31 
   32 enum fdc_type {
   33         FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1
   34 };
   35 
   36 /*
   37  * Per controller structure (softc).
   38  */
   39 struct fdc_data {
   40         int     fdcu;           /* our unit number */
   41         int     dmachan;
   42         int     flags;
   43 #define FDC_HASDMA      0x01
   44 #define FDC_STAT_VALID  0x08
   45 #define FDC_HAS_FIFO    0x10
   46 #define FDC_NEEDS_RESET 0x20
   47 #define FDC_NODMA       0x40    /* Don't do DMA */
   48 #define FDC_NOFAST      0x80    /* Don't register isr as a fast one */
   49 #define FDC_KTHREAD_EXIT        0x1000 /* request worker thread to stop */
   50 #define FDC_KTHREAD_ALIVE       0x2000 /* worker thread is alive */
   51         struct  fd_data *fd;    /* The active drive */
   52         int     retry;
   53         int     fdout;          /* mirror of the w/o digital output reg */
   54         u_int   status[7];      /* copy of the registers */
   55         enum    fdc_type fdct;  /* chip version of FDC */
   56         int     fdc_errs;       /* number of logged errors */
   57         struct  bio_queue_head head;
   58         struct  bio *bp;        /* active buffer */
   59         struct  resource *res_irq, *res_drq;
   60         int     rid_irq, rid_drq;
   61 #define FDC_MAXREG      8
   62         int     ridio[FDC_MAXREG];
   63         struct  resource *resio[FDC_MAXREG];
   64         bus_space_tag_t iot;
   65         bus_space_handle_t ioh[FDC_MAXREG];
   66         int     ioff[FDC_MAXREG];
   67         void    *fdc_intr;
   68         device_t fdc_dev;
   69         struct mtx fdc_mtx;
   70         struct proc *fdc_thread;
   71 };
   72 
   73 enum fdc_device_ivars {
   74         FDC_IVAR_FDUNIT,
   75         FDC_IVAR_FDTYPE,
   76 };
   77 
   78 __BUS_ACCESSOR(fdc, fdunit, FDC, FDUNIT, int);
   79 __BUS_ACCESSOR(fdc, fdtype, FDC, FDTYPE, int);
   80 
   81 void fdc_release_resources(struct fdc_data *);
   82 int fdc_attach(device_t);
   83 void fdc_start_worker(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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