f76db8de03
context. Approved by: adrian (mentor) Differential Revision: https://reviews.freebsd.org/D8759
91 lines
3.2 KiB
C
91 lines
3.2 KiB
C
/*-
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* Copyright (c) 2016 Landon Fuller <landonf@FreeBSD.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_NVRAM_IO_H_
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#define _BHND_NVRAM_BHND_NVRAM_IO_H_
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#ifdef _KERNEL
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#include <sys/param.h>
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#include <dev/bhnd/bhnd.h>
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#else /* !_KERNEL */
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#include <errno.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdlib.h>
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#endif /* _KERNEL */
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struct bhnd_nvram_io;
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struct bhnd_nvram_io *bhnd_nvram_iobuf_new(const void *buffer, size_t size);
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struct bhnd_nvram_io *bhnd_nvram_iobuf_empty(size_t size, size_t capacity);
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struct bhnd_nvram_io *bhnd_nvram_iobuf_copy(struct bhnd_nvram_io *src);
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struct bhnd_nvram_io *bhnd_nvram_iobuf_copy_range(struct bhnd_nvram_io *src,
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size_t offset, size_t size);
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struct bhnd_nvram_io *bhnd_nvram_ioptr_new(const void *ptr, size_t size,
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size_t capacity, uint32_t flags);
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#ifdef _KERNEL
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struct bhnd_nvram_io *bhnd_nvram_iores_new(struct bhnd_resource *r,
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bus_size_t offset, bus_size_t size,
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u_int bus_width);
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#endif /* _KERNEL */
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size_t bhnd_nvram_io_getsize(struct bhnd_nvram_io *io);
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int bhnd_nvram_io_setsize(struct bhnd_nvram_io *io,
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size_t size);
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int bhnd_nvram_io_read(struct bhnd_nvram_io *io,
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size_t offset, void *buffer, size_t nbytes);
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int bhnd_nvram_io_read_ptr(struct bhnd_nvram_io *io,
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size_t offset, const void **ptr, size_t nbytes,
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size_t *navail);
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int bhnd_nvram_io_write(struct bhnd_nvram_io *io,
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size_t offset, void *buffer, size_t nbytes);
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int bhnd_nvram_io_write_ptr(struct bhnd_nvram_io *io,
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size_t offset, void **ptr, size_t nbytes,
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size_t *navail);
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void bhnd_nvram_io_free(struct bhnd_nvram_io *io);
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/**
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* bhnd_nvram_ioptr flags
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*/
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enum {
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BHND_NVRAM_IOPTR_RDONLY = (1<<0), /**< read-only */
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BHND_NVRAM_IOPTR_RDWR = (1<<1), /**< read/write */
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};
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#endif /* _BHND_NVRAM_BHND_NVRAM_IO_H_ */
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