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at91twivar.h revision 1.3 
      1 /*	$Id: at91twivar.h,v 1.3 2019/12/22 23:23:29 thorpej Exp $	*/
      2 /*	$NetBSD: at91twivar.h,v 1.3 2019/12/22 23:23:29 thorpej Exp $	*/
      3 
      4 /*-
      5  * Copyright (c) 2007 Embedtronics Oy. All rights reserved.
      6  *
      7  * Based on arch/macppc/dev/ki2c.c,
      8  * Copyright (c) 2001 Tsubai Masanari.  All rights reserved.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #ifndef	_AT91TWIVAR_H_
     34 #define	_AT91TWIVAR_H_	1
     35 
     36 struct at91twi_softc {
     37 	device_t		sc_dev;		/* generic device	*/
     38 	bus_space_tag_t		sc_iot;		/* I/O space tag	*/
     39 	bus_space_handle_t	sc_ioh;		/* I/O space handle	*/
     40 
     41 	int			sc_pid;		/* peripheral id	*/
     42 	struct i2c_controller	sc_i2c;		/* I2C device desc	*/
     43 
     44 	void			*sc_ih;		/* interrupt handle	*/
     45 
     46 	int			sc_flags;
     47 #define	I2C_BUSY	0x0001
     48 #define	I2C_READING	0x0002
     49 #define	I2C_ERROR	0x8000
     50 	u_char			*sc_data;
     51 	int			sc_resid;
     52 };
     53 
     54 #endif	// !_AT91TWIVAR_H_
     55