111d7cb2e3
Adds support for probing and initializing bhndb(4) bridge state using the bhnd_erom API, ensuring that full bridge configuration is available *prior* to actually attaching and enumerating the bhnd(4) child device, allowing us to safely allocate bus-level agent/device resources during bhnd(4) bus enumeration. - Add a bhnd_erom_probe() method usable by bhndb(4). This is an analogue to the existing bhnd_erom_probe_static() method, and allows the bhndb bridge to discover the best available erom parser class prior to newbus probing of its children. - Add support for supplying identification hints when probing erom devices. This is required on early EXTIF-only chipsets, where chip identification registers are not available. - Migrate bhndb over to the new bhnd_erom API, using bhnd_core_info records rather than bridged bhnd(4) device_t references to determine the bridged chipsets' capability/bridge configuration. - The bhndb parent (e.g. if_bwn) is now required to supply a hardware priority table to the bridge. The default table is currently sufficient for our supported devices. - Drop the two-pass attach approach we used for compatibility with bhndb(4) in the bhnd(4) bus drivers, and instead perform bus enumeration immediately, and allocate bridged per-child bus-level resources during that enumeration. Approved by: adrian (mentor) Differential Revision: https://reviews.freebsd.org/D7768
75 lines
2.8 KiB
C
75 lines
2.8 KiB
C
/*-
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* Copyright (c) 2015 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 _BCMA_BCMA_EROMVAR_H_
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#define _BCMA_BCMA_EROMVAR_H_
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#include <dev/bhnd/bhnd.h>
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#include <dev/bhnd/bhnd_erom.h>
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#include "bcmavar.h"
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struct bcma_erom;
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int bcma_erom_next_corecfg(struct bcma_erom *sc,
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struct bcma_corecfg **result);
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/** EROM core descriptor. */
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struct bcma_erom_core {
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uint16_t vendor; /**< core's designer */
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uint16_t device; /**< core's device identifier */
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uint16_t rev; /**< core's hardware revision */
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u_long num_mport; /**< number of master port descriptors */
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u_long num_dport; /**< number of slave port descriptors */
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u_long num_mwrap; /**< number of master wrapper slave port descriptors */
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u_long num_swrap; /**< number of slave wrapper slave port descriptors */
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};
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/** EROM master port descriptor. */
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struct bcma_erom_mport {
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uint8_t port_num; /**< the port number (bus-unique) */
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uint8_t port_vid; /**< the port VID. A single physical
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master port may have multiple VIDs;
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the canonical port address is
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composed of the port number + the
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port VID */
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};
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/** EROM slave port region descriptor. */
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struct bcma_erom_sport_region {
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uint8_t region_port; /**< the slave port mapping this region */
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uint8_t region_type; /**< the mapping port's type */
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bhnd_addr_t base_addr; /**< region base address */
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bhnd_addr_t size; /**< region size */
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};
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#endif /* _BCMA_BCMA_EROMVAR_H_ */
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