2 * Copyright (c) 2016 Landon Fuller <landonf@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification.
11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
13 * redistribution must be conditioned upon including a substantially
14 * similar Disclaimer requirement for further binary redistribution.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
20 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
22 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
27 * THE POSSIBILITY OF SUCH DAMAGES.
32 #ifndef _BHND_NVRAM_BHND_NVRAM_IO_H_
33 #define _BHND_NVRAM_BHND_NVRAM_IO_H_
36 #include <sys/param.h>
38 #include <dev/bhnd/bhnd.h>
49 struct bhnd_nvram_io *bhnd_nvram_iobuf_new(const void *buffer, size_t size);
50 struct bhnd_nvram_io *bhnd_nvram_iobuf_empty(size_t size, size_t capacity);
51 struct bhnd_nvram_io *bhnd_nvram_iobuf_copy(struct bhnd_nvram_io *src);
52 struct bhnd_nvram_io *bhnd_nvram_iobuf_copy_range(struct bhnd_nvram_io *src,
53 size_t offset, size_t size);
55 struct bhnd_nvram_io *bhnd_nvram_ioptr_new(const void *ptr, size_t size,
56 size_t capacity, uint32_t flags);
59 struct bhnd_nvram_io *bhnd_nvram_iores_new(struct bhnd_resource *r,
60 bus_size_t offset, bus_size_t size,
64 size_t bhnd_nvram_io_getsize(struct bhnd_nvram_io *io);
65 int bhnd_nvram_io_setsize(struct bhnd_nvram_io *io,
68 int bhnd_nvram_io_read(struct bhnd_nvram_io *io,
69 size_t offset, void *buffer, size_t nbytes);
70 int bhnd_nvram_io_read_ptr(struct bhnd_nvram_io *io,
71 size_t offset, const void **ptr, size_t nbytes,
74 int bhnd_nvram_io_write(struct bhnd_nvram_io *io,
75 size_t offset, void *buffer, size_t nbytes);
76 int bhnd_nvram_io_write_ptr(struct bhnd_nvram_io *io,
77 size_t offset, void **ptr, size_t nbytes,
80 void bhnd_nvram_io_free(struct bhnd_nvram_io *io);
83 * bhnd_nvram_ioptr flags
86 BHND_NVRAM_IOPTR_RDONLY = (1<<0), /**< read-only */
87 BHND_NVRAM_IOPTR_RDWR = (1<<1), /**< read/write */
90 #endif /* _BHND_NVRAM_BHND_NVRAM_IO_H_ */