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

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