a97fc401cf
"br" or "bridge" where - according to the terminology outlined in comments of bridge.h and mmcbr_if.m around since their addition in r163516 - the bus is meant and used instead. Some of these instances are also rather old, while those in e. g. mmc_subr.c are as new as r315430 and were caused by choosing mmc_wait_for_request(), i. e. the one pre-r315430 outliner existing in mmc.c, as template for function parameters in mmc_subr.c inadvertently. This correction translates to renaming "brdev" to "busdev" and "mmcbr" to "mmcbus" respectively as appropriate. While at it, also rename "reqdev" to just "dev" in mmc_subr.[c,h] for consistency with was already used in mmm.c pre-r315430, again modulo mmc_wait_for_request() that is. - Remove comment lines from bridge.h incorrectly suggesting that there would be a MMC bridge base class driver. - Update comments in bridge.h regarding the star topology of SD and SDIO; since version 3.00 of the SDHCI specification, for eSD and eSDIO bus topologies are actually possible in form of so called "shared buses" (in some subcontext later on renamed to "embedded" buses).
109 lines
3.8 KiB
Objective-C
109 lines
3.8 KiB
Objective-C
#-
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# Copyright (c) 2006 M. Warner Losh
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# Portions of this software may have been developed with reference to
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# the SD Simplified Specification. The following disclaimer may apply:
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#
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# The following conditions apply to the release of the simplified
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# specification ("Simplified Specification") by the SD Card Association and
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# the SD Group. The Simplified Specification is a subset of the complete SD
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# Specification which is owned by the SD Card Association and the SD
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# Group. This Simplified Specification is provided on a non-confidential
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# basis subject to the disclaimers below. Any implementation of the
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# Simplified Specification may require a license from the SD Card
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# Association, SD Group, SD-3C LLC or other third parties.
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#
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# Disclaimers:
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#
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# The information contained in the Simplified Specification is presented only
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# as a standard specification for SD Cards and SD Host/Ancillary products and
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# is provided "AS-IS" without any representations or warranties of any
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# kind. No responsibility is assumed by the SD Group, SD-3C LLC or the SD
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# Card Association for any damages, any infringements of patents or other
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# right of the SD Group, SD-3C LLC, the SD Card Association or any third
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# parties, which may result from its use. No license is granted by
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# implication, estoppel or otherwise under any patent or other rights of the
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# SD Group, SD-3C LLC, the SD Card Association or any third party. Nothing
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# herein shall be construed as an obligation by the SD Group, the SD-3C LLC
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# or the SD Card Association to disclose or distribute any technical
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# information, know-how or other confidential information to any third party.
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#
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# $FreeBSD$
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#
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#include <sys/types.h>
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#include <dev/mmc/mmcreg.h>
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#
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# This is the set of callbacks that the MMC subroutines and the mmc/sd card
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# driver call into the bus to make requests.
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#
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INTERFACE mmcbus;
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#
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# Pause re-tuning, optionally with triggering re-tuning up-front. Requires
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# the bus to be claimed.
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#
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METHOD void retune_pause {
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device_t busdev;
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device_t reqdev;
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bool retune;
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};
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#
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# Unpause re-tuning. Requires the bus to be claimed.
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#
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METHOD void retune_unpause {
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device_t busdev;
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device_t reqdev;
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};
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#
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# Queue and wait for a request. Requires the bus to be claimed.
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#
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METHOD int wait_for_request {
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device_t busdev;
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device_t reqdev;
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struct mmc_request *req;
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};
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#
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# Claim the current bus, blocking the current thread until the host is no
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# longer busy.
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#
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METHOD int acquire_bus {
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device_t busdev;
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device_t reqdev;
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};
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#
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# Release the current bus.
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#
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METHOD int release_bus {
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device_t busdev;
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device_t reqdev;
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};
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