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/*
* Copyright (c) 2019 Nutanix Inc. All rights reserved.
*
* Authors: Thanos Makatos <thanos@nutanix.com>
* Swapnil Ingle <swapnil.ingle@nutanix.com>
* Felipe Franciosi <felipe@nutanix.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Nutanix nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* 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 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, 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
* DAMAGE.
*
*/
#ifndef __CAP_H__
#define __CAP_H__
#include "muser.h"
struct caps;
/**
* Initializes PCI capabilities.
*
* Returns <0 on error, 0 if no capabilities are to be added, and >0 if all
* capabilities have been added.
*/
struct caps *
caps_create(lm_ctx_t *lm_ctx, lm_cap_t **caps, int nr_caps);
/*
* Conditionally accesses the PCI capabilities. Returns:
* 0: if no PCI capabilities are accessed,
* >0: if a PCI capability was accessed, with the return value indicating the
number of bytes accessed, and
* <0: negative error code on error.
*/
ssize_t
cap_maybe_access(lm_ctx_t *lm_ctx, struct caps *caps, char *buf, size_t count,
loff_t offset);
uint8_t *
cap_find_by_id(lm_ctx_t *lm_ctx, uint8_t id);
#endif /* __CAP_H__ */
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