root/kern/dev/lamebus/lhd.h

INCLUDED FROM

   1 /*
   2  * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
   3  *      The President and Fellows of Harvard College.
   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  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  30 #ifndef _LAMEBUS_LHD_H_
  31 #define _LAMEBUS_LHD_H_
  33 #include <device.h>
  35 /*
  36  * Our sector size
  37  */
  38 #define LHD_SECTSIZE  512
  40 /*
  41  * Hardware device data associated with lhd (LAMEbus hard disk)
  42  */
  43 struct lhd_softc {
  44         /* Initialized by lower-level attach code */
  45         void *lh_busdata;               /* The bus we're on */ 
uint32_t lh_buspos;             /* Our slot on that bus */
  47         int lh_unit;                    /* What number lhd we are */
  49         /*
  50          * Initialized by config_lhd 
  51          */
  53         void *lh_buf;                   /* Pointer to on-card I/O buffer */
  54         int lh_result;                  /* Result from I/O operation */
  55         struct semaphore *lh_clear;     /* Synchronization */
  56         struct semaphore *lh_done;
  58         struct device lh_dev;           /* VFS device structure */
  59 };
  61 /* Functions called by lower-level drivers */
  62 void lhd_irq(/*struct lhd_softc*/ void *);      /* Interrupt handler */
  64 #endif /* _LAMEBUS_LHD_H_ */