1 /* $NetBSD: motoi2cvar.h,v 1.3 2011/01/12 18:05:18 phx Exp $ */ 2 3 /*- 4 * Copyright (c) 2007, 2010 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Matt Thomas. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _DEV_I2C_MOTOI2CVAR_H_ 33 #define _DEV_I2C_MOTOI2CVAR_H_ 34 35 #include <dev/i2c/i2cvar.h> 36 37 struct motoi2c_softc; 38 typedef uint8_t (*motoi2c_iord_t)(struct motoi2c_softc *, bus_size_t); 39 typedef void (*motoi2c_iowr_t)(struct motoi2c_softc *, bus_size_t, uint8_t); 40 41 struct motoi2c_settings { 42 uint8_t i2c_adr; 43 uint8_t i2c_fdr; 44 uint8_t i2c_dfsrr; 45 }; 46 47 struct motoi2c_softc { 48 bus_space_tag_t sc_iot; 49 bus_space_handle_t sc_ioh; 50 struct i2c_controller sc_i2c; 51 kmutex_t sc_buslock; 52 bool sc_start; 53 motoi2c_iord_t sc_iord; 54 motoi2c_iowr_t sc_iowr; 55 }; 56 57 #define MOTOI2C_ADR_DEFAULT (0x7e << 1) 58 #define MOTOI2C_FDR_DEFAULT 0x31 /* 3072 */ 59 #define MOTOI2C_DFSRR_DEFAULT 0x10 60 61 #ifdef _KERNEL 62 void motoi2c_attach_common(device_t, struct motoi2c_softc *, 63 const struct motoi2c_settings *); 64 int motoi2c_intr(void *); 65 #endif 66 67 #endif /* !_DEV_I2C_MOTOI2CVAR_H_ */ 68