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iic.h revision 1.1.2.2
      1  1.1.2.2  nathanw /*	$NetBSD: iic.h,v 1.1.2.2 2002/02/28 04:11:44 nathanw Exp $	*/
      2  1.1.2.2  nathanw 
      3  1.1.2.2  nathanw /*
      4  1.1.2.2  nathanw  * Copyright (c) 1996 Mark Brinicombe.
      5  1.1.2.2  nathanw  * All rights reserved.
      6  1.1.2.2  nathanw  *
      7  1.1.2.2  nathanw  * Redistribution and use in source and binary forms, with or without
      8  1.1.2.2  nathanw  * modification, are permitted provided that the following conditions
      9  1.1.2.2  nathanw  * are met:
     10  1.1.2.2  nathanw  * 1. Redistributions of source code must retain the above copyright
     11  1.1.2.2  nathanw  *    notice, this list of conditions and the following disclaimer.
     12  1.1.2.2  nathanw  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1.2.2  nathanw  *    notice, this list of conditions and the following disclaimer in the
     14  1.1.2.2  nathanw  *    documentation and/or other materials provided with the distribution.
     15  1.1.2.2  nathanw  * 3. All advertising materials mentioning features or use of this software
     16  1.1.2.2  nathanw  *    must display the following acknowledgement:
     17  1.1.2.2  nathanw  *	This product includes software developed by Brini.
     18  1.1.2.2  nathanw  * 4. The name of the company nor the name of the author may be used to
     19  1.1.2.2  nathanw  *    endorse or promote products derived from this software without specific
     20  1.1.2.2  nathanw  *    prior written permission.
     21  1.1.2.2  nathanw  *
     22  1.1.2.2  nathanw  * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
     23  1.1.2.2  nathanw  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     24  1.1.2.2  nathanw  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  1.1.2.2  nathanw  * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
     26  1.1.2.2  nathanw  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     27  1.1.2.2  nathanw  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     28  1.1.2.2  nathanw  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  1.1.2.2  nathanw  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  1.1.2.2  nathanw  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  1.1.2.2  nathanw  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  1.1.2.2  nathanw  * SUCH DAMAGE.
     33  1.1.2.2  nathanw  *
     34  1.1.2.2  nathanw  * RiscBSD kernel project
     35  1.1.2.2  nathanw  *
     36  1.1.2.2  nathanw  * iic.h
     37  1.1.2.2  nathanw  *
     38  1.1.2.2  nathanw  * header file for IIC
     39  1.1.2.2  nathanw  *
     40  1.1.2.2  nathanw  * Created      : 15/04/96
     41  1.1.2.2  nathanw  */
     42  1.1.2.2  nathanw 
     43  1.1.2.2  nathanw /*
     44  1.1.2.2  nathanw  * IIC bus driver attach arguments
     45  1.1.2.2  nathanw  */
     46  1.1.2.2  nathanw 
     47  1.1.2.2  nathanw #ifdef _KERNEL
     48  1.1.2.2  nathanw 
     49  1.1.2.2  nathanw struct iicbus_attach_args {
     50  1.1.2.2  nathanw 	int	ib_addr;	/* i/o address */
     51  1.1.2.2  nathanw 	void	*ib_aux;	/* driver specific */
     52  1.1.2.2  nathanw };
     53  1.1.2.2  nathanw 
     54  1.1.2.2  nathanw #define iic_bitdelay 10
     55  1.1.2.2  nathanw 
     56  1.1.2.2  nathanw #define IIC_WRITE	0x00
     57  1.1.2.2  nathanw #define IIC_READ	0x01
     58  1.1.2.2  nathanw 
     59  1.1.2.2  nathanw /* Prototypes for assembly functions */
     60  1.1.2.2  nathanw 
     61  1.1.2.2  nathanw void iic_set_state		__P((int data, int clock));
     62  1.1.2.2  nathanw void iic_set_state_and_ack	__P((int data, int clock));
     63  1.1.2.2  nathanw void iic_delay			__P((int delay));
     64  1.1.2.2  nathanw 
     65  1.1.2.2  nathanw /* Prototype for kernel interface to IIC bus */
     66  1.1.2.2  nathanw 
     67  1.1.2.2  nathanw int iic_control __P((u_char address, u_char *buffer, int count));
     68  1.1.2.2  nathanw 
     69  1.1.2.2  nathanw #endif /* _KERNEL */
     70  1.1.2.2  nathanw 
     71  1.1.2.2  nathanw /* End of iic.h */
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