freebsd-skq/sys/dev/bhnd/nvram/bhnd_nvram_plistvar.h
landonf 657ff5dd5d bhnd(4): Implement a new bhnd_nvram_plist and bhnd_nvram_prop API for
representing arbitrary Broadcom NVRAM key/value pairs.

This will be used to track pending changes in bhnd_nvram_store, and
provide support for exporting all or a device subpath for NVRAM (as
required by some fullmac wifi chipsets).

Approved by:	adrian (mentor)
Differential Revision:	https://reviews.freebsd.org/D8756
2016-12-19 20:11:48 +00:00

76 lines
2.5 KiB
C

/*-
* Copyright (c) 2015-2016 Landon Fuller <landon@landonf.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGES.
*
* $FreeBSD$
*/
#ifndef _BHND_NVRAM_BHND_PLISTVAR_H_
#define _BHND_NVRAM_BHND_PLISTVAR_H_
#include "bhnd_nvram_plist.h"
#include <sys/queue.h>
LIST_HEAD(bhnd_nvram_plist_entry_list, bhnd_nvram_plist_entry);
typedef struct bhnd_nvram_plist_entry bhnd_nvram_plist_entry;
typedef struct bhnd_nvram_plist_entry_list bhnd_nvram_plist_entry_list;
/**
* NVRAM property.
*/
struct bhnd_nvram_prop {
volatile u_int refs; /**< refcount */
char *name; /**< property name */
bhnd_nvram_val *val; /**< property value */
};
/**
* NVRAM property list entry.
*/
struct bhnd_nvram_plist_entry {
bhnd_nvram_prop *prop;
TAILQ_ENTRY(bhnd_nvram_plist_entry) pl_link;
LIST_ENTRY(bhnd_nvram_plist_entry) pl_hash_link;
};
/**
* NVRAM property list.
*
* Provides an ordered list of property values.
*/
struct bhnd_nvram_plist {
volatile u_int refs; /**< refcount */
TAILQ_HEAD(,bhnd_nvram_plist_entry) entries; /**< all properties */
size_t num_entries; /**< entry count */
bhnd_nvram_plist_entry_list names[16]; /**< name-based hash table */
};
#endif /* _BHND_NVRAM_BHND_PLISTVAR_H_ */