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