1 /*- 2 * Copyright (c) 2016 Landon Fuller <landonf@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 15 * 16 * NO WARRANTY 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. 28 * 29 * $FreeBSD$ 30 */ 31 32 #ifndef _BHND_NVRAM_BHND_NVRAM_IO_H_ 33 #define _BHND_NVRAM_BHND_NVRAM_IO_H_ 34 35 #ifdef _KERNEL 36 #include <sys/param.h> 37 38 #include <dev/bhnd/bhnd.h> 39 #else /* !_KERNEL */ 40 #include <errno.h> 41 42 #include <stdbool.h> 43 #include <stdint.h> 44 #include <stdlib.h> 45 #endif /* _KERNEL */ 46 47 struct bhnd_nvram_io; 48 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); 54 55 #ifdef _KERNEL 56 struct bhnd_nvram_io *bhnd_nvram_iores_new(struct bhnd_resource *r, 57 bus_size_t offset, bus_size_t size, 58 u_int bus_width); 59 #endif /* _KERNEL */ 60 61 size_t bhnd_nvram_io_getsize(struct bhnd_nvram_io *io); 62 int bhnd_nvram_io_setsize(struct bhnd_nvram_io *io, 63 size_t size); 64 65 int bhnd_nvram_io_read(struct bhnd_nvram_io *io, 66 size_t offset, void *buffer, size_t nbytes); 67 int bhnd_nvram_io_read_ptr(struct bhnd_nvram_io *io, 68 size_t offset, const void **ptr, size_t nbytes, 69 size_t *navail); 70 71 int bhnd_nvram_io_write(struct bhnd_nvram_io *io, 72 size_t offset, void *buffer, size_t nbytes); 73 int bhnd_nvram_io_write_ptr(struct bhnd_nvram_io *io, 74 size_t offset, void **ptr, size_t nbytes, 75 size_t *navail); 76 77 void bhnd_nvram_io_free(struct bhnd_nvram_io *io); 78 79 #endif /* _BHND_NVRAM_BHND_NVRAM_IO_H_ */ 80