xref: /freebsd-src/sys/dev/mmc/mmcbrvar.h (revision 95ee2897e98f5d444f26ed2334cc7c439f9c16c6)

/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2006 Bernd Walter.  All rights reserved.
 * Copyright (c) 2006 M. Warner Losh <imp@FreeBSD.org>
 *
 * 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 AUTHOR ``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 AUTHOR 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.
 *
 * Portions of this software may have been developed with reference to
 * the SD Simplified Specification.  The following disclaimer may apply:
 *
 * The following conditions apply to the release of the simplified
 * specification ("Simplified Specification") by the SD Card Association and
 * the SD Group. The Simplified Specification is a subset of the complete SD
 * Specification which is owned by the SD Card Association and the SD
 * Group. This Simplified Specification is provided on a non-confidential
 * basis subject to the disclaimers below. Any implementation of the
 * Simplified Specification may require a license from the SD Card
 * Association, SD Group, SD-3C LLC or other third parties.
 *
 * Disclaimers:
 *
 * The information contained in the Simplified Specification is presented only
 * as a standard specification for SD Cards and SD Host/Ancillary products and
 * is provided "AS-IS" without any representations or warranties of any
 * kind. No responsibility is assumed by the SD Group, SD-3C LLC or the SD
 * Card Association for any damages, any infringements of patents or other
 * right of the SD Group, SD-3C LLC, the SD Card Association or any third
 * parties, which may result from its use. No license is granted by
 * implication, estoppel or otherwise under any patent or other rights of the
 * SD Group, SD-3C LLC, the SD Card Association or any third party. Nothing
 * herein shall be construed as an obligation by the SD Group, the SD-3C LLC
 * or the SD Card Association to disclose or distribute any technical
 * information, know-how or other confidential information to any third party.
 */

#ifndef DEV_MMC_MMCBRVAR_H
#define	DEV_MMC_MMCBRVAR_H

#include <dev/mmc/mmcreg.h>

#include "mmcbr_if.h"

enum mmcbr_device_ivars {
    MMCBR_IVAR_BUS_MODE,
    MMCBR_IVAR_BUS_WIDTH,
    MMCBR_IVAR_CHIP_SELECT,
    MMCBR_IVAR_CLOCK,
    MMCBR_IVAR_F_MIN,
    MMCBR_IVAR_F_MAX,
    MMCBR_IVAR_HOST_OCR,
    MMCBR_IVAR_MODE,
    MMCBR_IVAR_OCR,
    MMCBR_IVAR_POWER_MODE,
    MMCBR_IVAR_RETUNE_REQ,
    MMCBR_IVAR_VDD,
    MMCBR_IVAR_VCCQ,
    MMCBR_IVAR_CAPS,
    MMCBR_IVAR_TIMING,
    MMCBR_IVAR_MAX_DATA,
    MMCBR_IVAR_MAX_BUSY_TIMEOUT
};

/*
 * Simplified accessors for bridge devices
 */
#define	MMCBR_ACCESSOR(var, ivar, type)					\
	__BUS_ACCESSOR(mmcbr, var, MMCBR, ivar, type)

MMCBR_ACCESSOR(bus_mode, BUS_MODE, int)
MMCBR_ACCESSOR(bus_width, BUS_WIDTH, int)
MMCBR_ACCESSOR(chip_select, CHIP_SELECT, int)
MMCBR_ACCESSOR(clock, CLOCK, int)
MMCBR_ACCESSOR(f_max, F_MAX, int)
MMCBR_ACCESSOR(f_min, F_MIN, int)
MMCBR_ACCESSOR(host_ocr, HOST_OCR, int)
MMCBR_ACCESSOR(mode, MODE, int)
MMCBR_ACCESSOR(ocr, OCR, int)
MMCBR_ACCESSOR(power_mode, POWER_MODE, int)
MMCBR_ACCESSOR(vdd, VDD, int)
MMCBR_ACCESSOR(vccq, VCCQ, int)
MMCBR_ACCESSOR(caps, CAPS, int)
MMCBR_ACCESSOR(timing, TIMING, int)
MMCBR_ACCESSOR(max_data, MAX_DATA, int)
MMCBR_ACCESSOR(max_busy_timeout, MAX_BUSY_TIMEOUT, u_int)

static int __inline
mmcbr_get_retune_req(device_t dev)
{
	uintptr_t v;

	if (__predict_false(BUS_READ_IVAR(device_get_parent(dev), dev,
	    MMCBR_IVAR_RETUNE_REQ, &v) != 0))
		return (retune_req_none);
	return ((int)v);
}

/*
 * Convenience wrappers for the mmcbr interface
 */
static int __inline
mmcbr_update_ios(device_t dev)
{

	return (MMCBR_UPDATE_IOS(device_get_parent(dev), dev));
}

static int __inline
mmcbr_tune(device_t dev, bool hs400)
{

	return (MMCBR_TUNE(device_get_parent(dev), dev, hs400));
}

static int __inline
mmcbr_retune(device_t dev, bool reset)
{

	return (MMCBR_RETUNE(device_get_parent(dev), dev, reset));
}

static int __inline
mmcbr_switch_vccq(device_t dev)
{

	return (MMCBR_SWITCH_VCCQ(device_get_parent(dev), dev));
}

static int __inline
mmcbr_get_ro(device_t dev)
{

	return (MMCBR_GET_RO(device_get_parent(dev), dev));
}

#endif /* DEV_MMC_MMCBRVAR_H */