47bde7925b
This adds a generic sim that abstract a lot of what needs to be implemented in a driver for mmccam support. A new interface with three methods is added : - mmc_sim_get_tran_settings: Use to get what the controller supports in term of capabilities, freq etc ... - mmc_sim_set_tran_settings: Use to change the speed/freq/etc of the sdcard host controller - mmc_sim_cam_request: Used for MMCIO requests Differential Revision: https://reviews.freebsd.org/D27485 Reviewed by: kibab
44 lines
1.7 KiB
C
44 lines
1.7 KiB
C
/*-
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* Copyright (c) 2020 Emmanuel Vadot <manu@FreeBSD.org>
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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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* 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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* $FreeBSD$
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*/
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#ifndef __MMC_SIM_H__
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#define __MMC_SIM_H__
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struct mmc_sim {
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struct mmc_cam_sim_softc *sc;
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struct mtx mtx;
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struct cam_devq *devq;
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struct cam_sim *sim;
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device_t dev;
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};
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int mmc_cam_sim_alloc(device_t dev, const char *name, struct mmc_sim *mmc_sim);
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void mmc_cam_sim_free(struct mmc_sim *sim);
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void mmc_cam_sim_discover(struct mmc_sim *mmc_sim);
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#endif /* __MMC_SIM_H__ */
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