/* $NetBSD: dwiic_var.h,v 1.4 2025/09/15 15:18:42 thorpej Exp $ */

/*-
 * Copyright (c) 2017 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Manuel Bouyer.
 *
 * 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.
 */

#include <dev/i2c/i2cvar.h>

enum dwiic_type {
        dwiic_type_generic,
        dwiic_type_sunrisepoint
};

struct dwiic_softc {
        device_t                sc_dev;

        bus_space_tag_t         sc_iot;
        bus_space_handle_t      sc_ioh;
        void                    *sc_ih;

        enum dwiic_type         sc_type;

        bool                    (*sc_power)(struct dwiic_softc *, bool);

        int                     sc_poll;
        kmutex_t                sc_int_lock;
        kcondvar_t              sc_int_readwait;
        kcondvar_t              sc_int_writewait;
        kcondvar_t              sc_int_stopwait;

        uint32_t                master_cfg;
        uint16_t                ss_hcnt, ss_lcnt, fs_hcnt, fs_lcnt;
        uint32_t                sda_hold_time;
        int                     tx_fifo_depth;
        int                     rx_fifo_depth;

        struct i2c_controller   sc_i2c_tag;
        kmutex_t                sc_i2c_lock;
        struct {
                i2c_op_t        op;
                void            *buf;
                size_t          len;
                int             flags;
                volatile int    error;
        } sc_i2c_xfer;

        volatile bool           sc_attached;
};

bool            dwiic_attach(struct dwiic_softc *);
int             dwiic_detach(device_t, int);
bool            dwiic_suspend(device_t, const pmf_qual_t *);
bool            dwiic_resume(device_t, const pmf_qual_t *);

int             dwiic_intr(void *);