The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/mmc/mmcbrvar.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2006 Bernd Walter.  All rights reserved.
    5  * Copyright (c) 2006 M. Warner Losh.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   26  *
   27  * Portions of this software may have been developed with reference to
   28  * the SD Simplified Specification.  The following disclaimer may apply:
   29  *
   30  * The following conditions apply to the release of the simplified
   31  * specification ("Simplified Specification") by the SD Card Association and
   32  * the SD Group. The Simplified Specification is a subset of the complete SD
   33  * Specification which is owned by the SD Card Association and the SD
   34  * Group. This Simplified Specification is provided on a non-confidential
   35  * basis subject to the disclaimers below. Any implementation of the
   36  * Simplified Specification may require a license from the SD Card
   37  * Association, SD Group, SD-3C LLC or other third parties.
   38  *
   39  * Disclaimers:
   40  *
   41  * The information contained in the Simplified Specification is presented only
   42  * as a standard specification for SD Cards and SD Host/Ancillary products and
   43  * is provided "AS-IS" without any representations or warranties of any
   44  * kind. No responsibility is assumed by the SD Group, SD-3C LLC or the SD
   45  * Card Association for any damages, any infringements of patents or other
   46  * right of the SD Group, SD-3C LLC, the SD Card Association or any third
   47  * parties, which may result from its use. No license is granted by
   48  * implication, estoppel or otherwise under any patent or other rights of the
   49  * SD Group, SD-3C LLC, the SD Card Association or any third party. Nothing
   50  * herein shall be construed as an obligation by the SD Group, the SD-3C LLC
   51  * or the SD Card Association to disclose or distribute any technical
   52  * information, know-how or other confidential information to any third party.
   53  *
   54  * $FreeBSD: head/sys/dev/mmc/mmcbrvar.h 343811 2019-02-05 21:37:34Z imp $
   55  */
   56 
   57 #ifndef DEV_MMC_MMCBRVAR_H
   58 #define DEV_MMC_MMCBRVAR_H
   59 
   60 #include <dev/mmc/mmcreg.h>
   61 
   62 #include "mmcbr_if.h"
   63 
   64 enum mmcbr_device_ivars {
   65     MMCBR_IVAR_BUS_MODE,
   66     MMCBR_IVAR_BUS_WIDTH,
   67     MMCBR_IVAR_CHIP_SELECT,
   68     MMCBR_IVAR_CLOCK,
   69     MMCBR_IVAR_F_MIN,
   70     MMCBR_IVAR_F_MAX,
   71     MMCBR_IVAR_HOST_OCR,
   72     MMCBR_IVAR_MODE,
   73     MMCBR_IVAR_OCR,
   74     MMCBR_IVAR_POWER_MODE,
   75     MMCBR_IVAR_RETUNE_REQ,
   76     MMCBR_IVAR_VDD,
   77     MMCBR_IVAR_VCCQ,
   78     MMCBR_IVAR_CAPS,
   79     MMCBR_IVAR_TIMING,
   80     MMCBR_IVAR_MAX_DATA,
   81     MMCBR_IVAR_MAX_BUSY_TIMEOUT
   82 };
   83 
   84 /*
   85  * Simplified accessors for bridge devices
   86  */
   87 #define MMCBR_ACCESSOR(var, ivar, type)                                 \
   88         __BUS_ACCESSOR(mmcbr, var, MMCBR, ivar, type)
   89 
   90 MMCBR_ACCESSOR(bus_mode, BUS_MODE, int)
   91 MMCBR_ACCESSOR(bus_width, BUS_WIDTH, int)
   92 MMCBR_ACCESSOR(chip_select, CHIP_SELECT, int)
   93 MMCBR_ACCESSOR(clock, CLOCK, int)
   94 MMCBR_ACCESSOR(f_max, F_MAX, int)
   95 MMCBR_ACCESSOR(f_min, F_MIN, int)
   96 MMCBR_ACCESSOR(host_ocr, HOST_OCR, int)
   97 MMCBR_ACCESSOR(mode, MODE, int)
   98 MMCBR_ACCESSOR(ocr, OCR, int)
   99 MMCBR_ACCESSOR(power_mode, POWER_MODE, int)
  100 MMCBR_ACCESSOR(vdd, VDD, int)
  101 MMCBR_ACCESSOR(vccq, VCCQ, int)
  102 MMCBR_ACCESSOR(caps, CAPS, int)
  103 MMCBR_ACCESSOR(timing, TIMING, int)
  104 MMCBR_ACCESSOR(max_data, MAX_DATA, int)
  105 MMCBR_ACCESSOR(max_busy_timeout, MAX_BUSY_TIMEOUT, u_int)
  106 
  107 static int __inline
  108 mmcbr_get_retune_req(device_t dev)
  109 {
  110         uintptr_t v;
  111 
  112         if (__predict_false(BUS_READ_IVAR(device_get_parent(dev), dev,
  113             MMCBR_IVAR_RETUNE_REQ, &v) != 0))
  114                 return (retune_req_none);
  115         return ((int)v);
  116 }
  117 
  118 /*
  119  * Convenience wrappers for the mmcbr interface
  120  */
  121 static int __inline
  122 mmcbr_update_ios(device_t dev)
  123 {
  124 
  125         return (MMCBR_UPDATE_IOS(device_get_parent(dev), dev));
  126 }
  127 
  128 static int __inline
  129 mmcbr_tune(device_t dev, bool hs400)
  130 {
  131 
  132         return (MMCBR_TUNE(device_get_parent(dev), dev, hs400));
  133 }
  134 
  135 static int __inline
  136 mmcbr_retune(device_t dev, bool reset)
  137 {
  138 
  139         return (MMCBR_RETUNE(device_get_parent(dev), dev, reset));
  140 }
  141 
  142 static int __inline
  143 mmcbr_switch_vccq(device_t dev)
  144 {
  145 
  146         return (MMCBR_SWITCH_VCCQ(device_get_parent(dev), dev));
  147 }
  148 
  149 static int __inline
  150 mmcbr_get_ro(device_t dev)
  151 {
  152 
  153         return (MMCBR_GET_RO(device_get_parent(dev), dev));
  154 }
  155 
  156 #endif /* DEV_MMC_MMCBRVAR_H */

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