/* $NetBSD: dwiic_var.h,v 1.3 2022/10/19 22:34:10 riastradh Exp $ */

/* $NetBSD: dwiic_var.h,v 1.3 2022/10/19 22:34:10 riastradh 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);

struct i2cbus_attach_args sc_iba;
device_t sc_iic;

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 *);