1 /*- 2 * Copyright (c) 2015-2016 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_BCMVAR_H_ 33 #define _BHND_NVRAM_BHND_NVRAM_BCMVAR_H_ 34 35 #define BCM_NVRAM_ENCODE_OPT_VERSION "bcm_version" 36 37 /** 38 * BCM NVRAM header value data. 39 */ 40 union bhnd_nvram_bcm_hvar_value { 41 uint16_t u16; 42 uint32_t u32; 43 }; 44 45 /** 46 * Internal representation of BCM NVRAM values that mirror (and must be 47 * vended as) NVRAM variables. 48 */ 49 struct bhnd_nvram_bcm_hvar { 50 const char *name; /**< variable name */ 51 bhnd_nvram_type type; /**< value type */ 52 size_t nelem; /**< value element count */ 53 size_t len; /**< value length */ 54 const char *envp; /**< Pointer to the NVRAM variable mirroring 55 this header value, or NULL. */ 56 bool stale; /**< header value does not match 57 mirrored NVRAM value */ 58 59 /** variable data */ 60 union bhnd_nvram_bcm_hvar_value value; 61 }; 62 63 /** BCM NVRAM header */ 64 struct bhnd_nvram_bcmhdr { 65 uint32_t magic; 66 uint32_t size; 67 uint32_t cfg0; /**< crc:8, version:8, sdram_init:16 */ 68 uint32_t cfg1; /**< sdram_config:16, sdram_refresh:16 */ 69 uint32_t sdram_ncdl; /**< sdram_ncdl */ 70 } __packed; 71 72 #endif /* _BHND_NVRAM_BHND_NVRAM_BCMVAR_H_ */ 73