sys/arch/shark/include/iic.h

   1 /*      $NetBSD: iic.h,v 1.1 2002/02/10 01:57:17 thorpej Exp $  */
   2
   3 /*
   4  * Copyright (c) 1996 Mark Brinicombe.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Brini.
  18  * 4. The name of the company nor the name of the author may be used to
  19  *    endorse or promote products derived from this software without specific
  20  *    prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
  23  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  24  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  25  * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  26  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  27  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  28  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * RiscBSD kernel project
  35  *
  36  * iic.h
  37  *
  38  * header file for IIC
  39  *
  40  * Created      : 15/04/96
  41  */
  42
  43 /*
  44  * IIC bus driver attach arguments
  45  */
  46
  47 #ifdef _KERNEL
  48
  49 struct iicbus_attach_args {
  50         int     ib_addr;        /* i/o address */
  51         void    *ib_aux;        /* driver specific */
  52 };
  53
  54 #define iic_bitdelay 10
  55
  56 #define IIC_WRITE       0x00
  57 #define IIC_READ        0x01
  58
  59 /* Prototypes for assembly functions */
  60
  61 void iic_set_state(int data, int clock);
  62 void iic_set_state_and_ack(int data, int clock);
  63 void iic_delay(int delay);
  64
  65 /* Prototype for kernel interface to IIC bus */
  66
  67 int iic_control(u_char address, u_char *buffer, int count);
  68
  69 #endif /* _KERNEL */
  70
  71 /* End of iic.h */