/* $NetBSD: motoi2cvar.h,v 1.9 2022/07/22 23:43:23 thorpej Exp $ */

/*-
* Copyright (c) 2007, 2010 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _DEV_I2C_MOTOI2CVAR_H_
#define _DEV_I2C_MOTOI2CVAR_H_

#include <dev/i2c/i2cvar.h>

struct motoi2c_softc;
typedef uint8_t (*motoi2c_iord_t)(struct motoi2c_softc *, bus_size_t);
typedef void (*motoi2c_iowr_t)(struct motoi2c_softc *, bus_size_t, uint8_t);

struct motoi2c_settings {
       uint8_t                 i2c_adr;
       uint8_t                 i2c_fdr;
       uint8_t                 i2c_dfsrr;
};

struct motoi2c_softc {
       device_t                sc_dev;
       bus_space_tag_t         sc_iot;
       bus_space_handle_t      sc_ioh;
       struct i2c_controller   sc_i2c;
       motoi2c_iord_t          sc_iord;
       motoi2c_iowr_t          sc_iowr;
       int                     sc_phandle;
       prop_array_t            sc_child_devices;
       struct motoi2c_settings sc_settings;
       int                     sc_flags;
#define MOTOI2C_F_ENABLE_INV    __BIT(0)
#define MOTOI2C_F_STATUS_W1C    __BIT(1)
       uint8_t                 sc_enable_mask;
       uint8_t                 sc_disable_mask;
};

#define MOTOI2C_ADR_DEFAULT     (0x7e << 1)
#define MOTOI2C_FDR_DEFAULT     0x31    /* 3072 */
#define MOTOI2C_DFSRR_DEFAULT   0x10

#ifdef _KERNEL
void    motoi2c_attach(struct motoi2c_softc *,
           const struct motoi2c_settings *);
int     motoi2c_intr(void *);
#endif

#endif /* !_DEV_I2C_MOTOI2CVAR_H_ */