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      1 /* $NetBSD: motoi2cvar.h,v 1.11 2025/09/16 11:55:17 thorpej 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 	device_t		sc_dev;
     49 	bus_space_tag_t		sc_iot;
     50 	bus_space_handle_t	sc_ioh;
     51 	struct i2c_controller	sc_i2c;
     52 	motoi2c_iord_t		sc_iord;
     53 	motoi2c_iowr_t		sc_iowr;
     54 	struct motoi2c_settings	sc_settings;
     55 	int			sc_flags;
     56 #define	MOTOI2C_F_ENABLE_INV	__BIT(0)
     57 #define	MOTOI2C_F_STATUS_W1C	__BIT(1)
     58 	uint8_t			sc_enable_mask;
     59 	uint8_t			sc_disable_mask;
     60 };
     61 
     62 #define	MOTOI2C_ADR_DEFAULT	(0x7e << 1)
     63 #define	MOTOI2C_FDR_DEFAULT	0x31	/* 3072 */
     64 #define	MOTOI2C_DFSRR_DEFAULT	0x10
     65 
     66 #ifdef _KERNEL
     67 void	motoi2c_attach(struct motoi2c_softc *,
     68 	    const struct motoi2c_settings *);
     69 int	motoi2c_intr(void *);
     70 #endif
     71 
     72 #endif /* !_DEV_I2C_MOTOI2CVAR_H_ */
     73