nvram2env.h

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    1 /*-
    2  * Copyright (c) 2010 Aleksandr Rybalko.
    3  * Copyright (c) 2016 Michael Zhilin.
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  * 
   27  * $FreeBSD$
   28  */
   29 
   30 #ifndef NVRAM2ENV_NVRAM2ENV_H_
   31 #define NVRAM2ENV_NVRAM2ENV_H_
   32 
   33 #define nvram2env_read_1(sc, reg)                               \
   34         bus_space_read_1((sc)->sc_bt, (sc)->sc_bh,(reg))
   35 
   36 #define nvram2env_read_2(sc, reg)                               \
   37         bus_space_read_2((sc)->sc_bt, (sc)->sc_bh,(reg))
   38 
   39 #define nvram2env_read_4(sc, reg)                               \
   40         bus_space_read_4((sc)->sc_bt, (sc)->sc_bh,(reg))
   41 
   42 #define nvram2env_write_1(sc, reg, val)                 \
   43         bus_space_write_1((sc)->sc_bt, (sc)->sc_bh,     \
   44                          (reg), (val))
   45 
   46 #define nvram2env_write_2(sc, reg, val)                 \
   47         bus_space_write_2((sc)->sc_bt, (sc)->sc_bh,     \
   48                          (reg), (val))
   49 
   50 #define nvram2env_write_4(sc, reg, val)                 \
   51         bus_space_write_4((sc)->sc_bt, (sc)->sc_bh,     \
   52                          (reg), (val))
   53 
   54 struct nvram2env_softc {
   55         bus_space_tag_t bst;
   56         bus_space_handle_t bsh;
   57         bus_addr_t addr;
   58         int need_swap;
   59         uint32_t sig;
   60         uint32_t flags;
   61 #define NVRAM_FLAGS_NOCHECK     0x0001  /* Do not check(CRC or somthing else)*/
   62 #define NVRAM_FLAGS_GENERIC     0x0002  /* Format Generic, skip 4b and read */
   63 #define NVRAM_FLAGS_BROADCOM    0x0004  /* Format Broadcom, use struct nvram */
   64 #define NVRAM_FLAGS_UBOOT       0x0008  /* Format Generic, skip 4b of CRC and read */
   65         uint32_t maxsize;
   66         uint32_t crc;
   67 };
   68 
   69 #define NVRAM_MAX_SIZE  0x10000
   70 #define CFE_NVRAM_SIGNATURE 0x48534c46
   71 
   72 struct nvram {
   73         u_int32_t sig;
   74         u_int32_t size;
   75         u_int32_t unknown1;
   76         u_int32_t unknown2;
   77         u_int32_t unknown3;
   78         char data[];
   79 };
   80 
   81 int             nvram2env_attach(device_t);
   82 int             nvram2env_probe(device_t);
   83 
   84 extern driver_t         nvram2env_driver;
   85 
   86 #endif /* SYS_DEV_NVRAM2ENV_NVRAM2ENV_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/dev/nvram2env/nvram2env.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/nvram2env/nvram2env.h