1#- 2# Copyright (c) 2006 M. Warner Losh 3# 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 AND CONTRIBUTORS ``AS IS'' AND 15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24# SUCH DAMAGE. 25# 26# $FreeBSD$ 27# 28 29#include <sys/types.h> 30#include <dev/mmc/bridge.h> 31#include <dev/mmc/mmcreg.h> 32 33# 34# This is the interface that a mmc bridge chip gives to the mmc bus 35# that attaches to the mmc bridge. 36# 37 38INTERFACE mmcbr; 39 40# 41# Called by the mmcbus to setup the IO pins correctly, the voltage to use 42# for the card, the type of selects, power modes and bus width. 43# 44METHOD int update_ios { 45 device_t brdev; 46 device_t reqdev; 47}; 48 49# 50# Called by the mmcbus or its children to schedule a mmc request. These 51# requests are queued. Time passes. The bridge then gets notification 52# of the status of request, who then notifies the requesting device via 53# the xfer_done mmcbus method. 54# 55METHOD int request { 56 device_t brdev; 57 device_t reqdev; 58 struct mmc_request *req; 59}; 60 61# 62# Called by mmcbus to get the read only status bits. 63# 64METHOD int get_ro { 65 device_t brdev; 66 device_t reqdev; 67}; 68 69# 70# Claim the current bridge, blocking the current thread until the host 71# is no longer busy. 72# 73METHOD int acquire_host { 74 device_t brdev; 75 device_t reqdev; 76} 77 78# 79# Release the current bridge. 80# 81METHOD int release_host { 82 device_t brdev; 83 device_t reqdev; 84} 85