FreeBSD/Linux Kernel Cross Reference
sys/cam/mmc/mmc.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2014-2016 Ilya Bakulin.  All rights reserved.
      *
      * 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.
     *
     * Inspired coded in sys/dev/mmc. Thanks to Warner Losh <imp@FreeBSD.org>,
     * Bernd Walter <tisco@FreeBSD.org>, and other authors.
     *
     * $FreeBSD$
     */
    
    #ifndef CAM_MMC_H
    #define CAM_MMC_H
    
    #include <dev/mmc/mmcreg.h>
    /*
     * This structure describes an MMC/SD card
     */
    struct mmc_params {
            u_int8_t        model[40]; /* Card model */
    
            /* Card OCR */
            uint32_t card_ocr;
    
            /* OCR of the IO portion of the card */
            uint32_t io_ocr;
    
            /* Card CID -- raw and parsed */
            uint32_t card_cid[4];
            struct mmc_cid  cid;
    
            /* Card CSD -- raw */
            uint32_t card_csd[4];
    
            /* Card RCA */
            uint16_t card_rca;
    
            /* What kind of card is it */
            uint32_t card_features;
    #define CARD_FEATURE_MEMORY 0x1
    #define CARD_FEATURE_SDHC   0x1 << 1
    #define CARD_FEATURE_SDIO   0x1 << 2
    #define CARD_FEATURE_SD20   0x1 << 3
    #define CARD_FEATURE_MMC    0x1 << 4
    #define CARD_FEATURE_18V    0x1 << 5
    
            uint8_t sdio_func_count;
    } __packed;
    
    /*
     * Only one MMC card on bus is supported now.
     * If we ever want to support multiple MMC cards on the same bus,
    * mmc_xpt needs to be extended to issue new RCAs based on number
    * of already probed cards. Furthermore, retuning and high-speed
    * settings should also take all cards into account.
    */
   #define MMC_PROPOSED_RCA    2
   #endif

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