1 /* $NetBSD: iic.h,v 1.3 2010/11/29 16:16:27 skrll 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, int); 62 void iic_set_state_and_ack(int, int); 63 void iic_delay(int); 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 */ 72