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c3a0f75a9f
In order to use platorm backend hardware driver should
impement three methods:
- platform_start_transfer and platform_finish_transfer
to start and finish transfer
- platform_will_handle - check whether transaction is
suitable for backend. If not - driver will fall back
to PIO mode.
Submitted by: Daisuke Aoyama <aoyama at peach.ne.jp>
Approved by: ian@
154 lines
4.5 KiB
Objective-C
154 lines
4.5 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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#
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# This is the set of callbacks that mmc bridges call into the bus, or
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# that mmc/sd card drivers call to make requests.
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#
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#include <sys/types.h>
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#include <sys/systm.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/taskqueue.h>
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#include <machine/bus.h>
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#include <dev/mmc/bridge.h>
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#include <dev/mmc/mmcreg.h>
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#include <dev/sdhci/sdhci.h>
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CODE {
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struct sdhci_slot;
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}
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INTERFACE sdhci;
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METHOD uint8_t read_1 {
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device_t brdev;
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struct sdhci_slot *slot;
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bus_size_t off;
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}
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METHOD uint16_t read_2 {
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device_t brdev;
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struct sdhci_slot *slot;
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bus_size_t off;
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}
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METHOD uint32_t read_4 {
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device_t brdev;
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struct sdhci_slot *slot;
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bus_size_t off;
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}
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METHOD void read_multi_4 {
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device_t brdev;
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struct sdhci_slot *slot;
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bus_size_t off;
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uint32_t *data;
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bus_size_t count;
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}
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METHOD void write_1 {
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device_t brdev;
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struct sdhci_slot *slot;
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bus_size_t off;
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uint8_t val;
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}
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METHOD void write_2 {
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device_t brdev;
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struct sdhci_slot *slot;
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bus_size_t off;
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uint16_t val;
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}
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METHOD void write_4 {
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device_t brdev;
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struct sdhci_slot *slot;
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bus_size_t off;
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uint32_t val;
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}
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METHOD void write_multi_4 {
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device_t brdev;
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struct sdhci_slot *slot;
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bus_size_t off;
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uint32_t *data;
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bus_size_t count;
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}
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METHOD int platform_will_handle {
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device_t brdev;
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struct sdhci_slot *slot;
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}
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METHOD void platform_start_transfer {
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device_t brdev;
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struct sdhci_slot *slot;
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uint32_t *intmask;
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}
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METHOD void platform_finish_transfer {
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device_t brdev;
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struct sdhci_slot *slot;
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}
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METHOD uint32_t min_freq {
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device_t brdev;
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struct sdhci_slot *slot;
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} DEFAULT sdhci_generic_min_freq;
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