cmxvar.h

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    1 /*-
    2  * Copyright (c) 2006-2007 Daniel Roethlisberger <daniel@roe.ch>
    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/8.3/sys/dev/cmx/cmxvar.h 176868 2008-03-06 08:09:45Z rink $
   27  */
   28 
   29 /*#define       CMX_DEBUG*/
   30 /*#define       CMX_INTR*/
   31 
   32 #define CMX_MIN_RDLEN   10              /* min read length */
   33 #define CMX_MIN_WRLEN   5               /* min write length */
   34 #define CMX_BUFSZ       512             /* I/O block size */
   35 
   36 struct cmx_softc {
   37         device_t dev;                   /* pccard device */
   38         struct cdev *cdev;              /* character device */
   39 
   40         struct resource *ioport;        /* io port resource descriptor */
   41         int ioport_rid;                 /* io port resource identification */
   42 
   43         bus_space_tag_t bst;            /* bus space tag */
   44         bus_space_handle_t bsh;         /* bus space handle */
   45 
   46 #ifdef CMX_INTR
   47         struct resource* irq;           /* irq resource descriptor */
   48         int irq_rid;                    /* irq resource identification */
   49         void *ih;                       /* intr handle */
   50 #endif
   51 
   52         struct mtx mtx;                 /* per-unit lock */
   53         struct callout ch;              /* callout handle */
   54         struct selinfo sel;             /* select/poll queue handle */
   55 
   56         int open;                       /* is chardev open? */
   57         int polling;                    /* are we polling? */
   58         int dying;                      /* are we detaching? */
   59 
   60         unsigned long timeout;          /* response timeout */
   61 
   62         uint8_t buf[CMX_BUFSZ];         /* read/write buffer */
   63 };
   64 
   65 extern devclass_t cmx_devclass;
   66 
   67 void    cmx_init_softc(device_t);
   68 int     cmx_alloc_resources(device_t);
   69 void    cmx_release_resources(device_t);
   70 int     cmx_attach(device_t);
   71 int     cmx_detach(device_t);
   72 
   73 #define CMX_READ_1(sc, off)                                             \
   74         (bus_space_read_1((sc)->bst, (sc)->bsh, off))
   75 #define CMX_WRITE_1(sc, off, val)                                       \
   76         (bus_space_write_1((sc)->bst, (sc)->bsh, off, val))
   77 
   78 #define cmx_read_BSR(sc)                                                \
   79         CMX_READ_1(sc, REG_OFFSET_BSR)
   80 #define cmx_write_BSR(sc, val)                                          \
   81         CMX_WRITE_1(sc, REG_OFFSET_BSR, val)
   82 #define cmx_read_SCR(sc)                                                \
   83         CMX_READ_1(sc, REG_OFFSET_SCR)
   84 #define cmx_write_SCR(sc, val)                                          \
   85         CMX_WRITE_1(sc, REG_OFFSET_SCR, val)
   86 #define cmx_read_DTR(sc)                                                \
   87         CMX_READ_1(sc, REG_OFFSET_DTR)
   88 #define cmx_write_DTR(sc, val)                                          \
   89         CMX_WRITE_1(sc, REG_OFFSET_DTR, val)
   90 
   91 #define cmx_test(byte, flags, test)                                     \
   92         (((byte) & (flags)) == ((test) ? (flags) : 0))
   93 
   94 #define cmx_test_BSR(sc, flags, test)                                   \
   95         cmx_test(cmx_read_BSR(sc), flags, test)
   96 
   97 #define CMX_LOCK(sc)                    mtx_lock(&(sc)->mtx)
   98 #define CMX_UNLOCK(sc)                  mtx_unlock(&(sc)->mtx)
   99 #define CMX_LOCK_ASSERT(sc, what)       mtx_assert(&(sc)->mtx, (what))

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FreeBSD/Linux Kernel Cross Reference sys/dev/cmx/cmxvar.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/cmx/cmxvar.h