56a4cdd131
Add support for fetching SPROM data from OTP on chipsets with an IPX OTP controller (including the BCM43225). This integrates the NVRAM data source into the chipc_caps capability structure, and adds a sprom_offset field that can be used with OTP to locate the SPROM image data (found within the general use region, H/W subregion). This also removes one of two duplicate parse error messages reported by both the bhnd_sprom driver and the underlying SPROM parsing API. Approved by: adrian (mentor) Differential Revision: https://reviews.freebsd.org/D6729
85 lines
3.0 KiB
C
85 lines
3.0 KiB
C
/*-
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* Copyright (c) 2015-2016 Landon Fuller <landon@landonf.org>
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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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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD$
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*/
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#ifndef _BHND_NVRAM_BHND_SPROMVAR_H_
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#define _BHND_NVRAM_BHND_SPROMVAR_H_
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#include <dev/bhnd/bhnd.h>
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DECLARE_CLASS(bhnd_sprom_driver);
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struct bhnd_sprom;
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int bhnd_sprom_probe(device_t dev);
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int bhnd_sprom_attach(device_t dev, bus_size_t offset);
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int bhnd_sprom_resume(device_t dev);
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int bhnd_sprom_suspend(device_t dev);
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int bhnd_sprom_detach(device_t dev);
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int bhnd_sprom_init(struct bhnd_sprom *sprom, struct bhnd_resource *r,
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bus_size_t offset);
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void bhnd_sprom_fini(struct bhnd_sprom *sprom);
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int bhnd_sprom_getvar(struct bhnd_sprom *sc, const char *name, void *buf,
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size_t *len);
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int bhnd_sprom_setvar(struct bhnd_sprom *sc, const char *name,
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const void *buf, size_t len);
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/**
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* bhnd sprom parser instance state.
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*/
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struct bhnd_sprom {
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device_t dev; /**< sprom parent device */
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uint8_t sp_rev; /**< sprom revision */
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struct bhnd_resource *sp_res; /**< sprom resource. */
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bus_size_t sp_res_off; /**< offset to sprom image */
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uint8_t *sp_shadow; /**< sprom shadow */
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bus_size_t sp_size_max; /**< maximum possible sprom length */
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size_t sp_size; /**< shadow size */
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size_t sp_capacity; /**< shadow buffer capacity */
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};
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/**
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* bhnd_sprom driver instance state. Must be first member of all subclass
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* softc structures.
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*/
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struct bhnd_sprom_softc {
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device_t dev;
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struct bhnd_resource *sprom_res; /**< SPROM resource */
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int sprom_rid; /**< SPROM RID */
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struct bhnd_sprom shadow; /**< SPROM shadow */
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struct mtx mtx; /**< SPROM shadow mutex */
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};
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#endif /* _BHND_NVRAM_BHND_SPROMVAR_H_ */
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