2 # Copyright (c) 2006 M. Warner Losh <imp@FreeBSD.org>
4 # Redistribution and use in source and binary forms, with or without
5 # modification, are permitted provided that the following conditions
7 # 1. Redistributions of source code must retain the above copyright
8 # notice, this list of conditions and the following disclaimer.
9 # 2. Redistributions in binary form must reproduce the above copyright
10 # notice, this list of conditions and the following disclaimer in the
11 # documentation and/or other materials provided with the distribution.
13 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 # Portions of this software may have been developed with reference to
26 # the SD Simplified Specification. The following disclaimer may apply:
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.
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.
55 #include <sys/types.h>
56 #include <dev/mmc/mmcreg.h>
59 # This is the set of callbacks that the MMC subroutines and the mmc/sd card
60 # driver call into the bus to make requests.
66 # Pause re-tuning, optionally with triggering re-tuning up-front. Requires
67 # the bus to be claimed.
69 METHOD void retune_pause {
76 # Unpause re-tuning. Requires the bus to be claimed.
78 METHOD void retune_unpause {
84 # Queue and wait for a request. Requires the bus to be claimed.
86 METHOD int wait_for_request {
89 struct mmc_request *req;
93 # Claim the current bus, blocking the current thread until the host is no
96 METHOD int acquire_bus {
102 # Release the current bus.
104 METHOD int release_bus {