89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
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/*-
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* Copyright (c) 2010 Aleksandr Rybalko.
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* Copyright (c) 2016 Michael Zhilin.
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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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef NVRAM2ENV_NVRAM2ENV_H_
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#define NVRAM2ENV_NVRAM2ENV_H_
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#define nvram2env_read_1(sc, reg) \
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bus_space_read_1((sc)->sc_bt, (sc)->sc_bh,(reg))
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#define nvram2env_read_2(sc, reg) \
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bus_space_read_2((sc)->sc_bt, (sc)->sc_bh,(reg))
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#define nvram2env_read_4(sc, reg) \
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bus_space_read_4((sc)->sc_bt, (sc)->sc_bh,(reg))
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#define nvram2env_write_1(sc, reg, val) \
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bus_space_write_1((sc)->sc_bt, (sc)->sc_bh, \
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(reg), (val))
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#define nvram2env_write_2(sc, reg, val) \
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bus_space_write_2((sc)->sc_bt, (sc)->sc_bh, \
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(reg), (val))
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#define nvram2env_write_4(sc, reg, val) \
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bus_space_write_4((sc)->sc_bt, (sc)->sc_bh, \
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(reg), (val))
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struct nvram2env_softc {
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bus_space_tag_t bst;
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bus_space_handle_t bsh;
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bus_addr_t addr;
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int need_swap;
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uint32_t sig;
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uint32_t flags;
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#define NVRAM_FLAGS_NOCHECK 0x0001 /* Do not check(CRC or somthing else)*/
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#define NVRAM_FLAGS_GENERIC 0x0002 /* Format Generic, skip 4b and read */
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#define NVRAM_FLAGS_BROADCOM 0x0004 /* Format Broadcom, use struct nvram */
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#define NVRAM_FLAGS_UBOOT 0x0008 /* Format Generic, skip 4b of CRC and read */
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uint32_t maxsize;
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uint32_t crc;
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};
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#define NVRAM_MAX_SIZE 0x10000
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#define CFE_NVRAM_SIGNATURE 0x48534c46
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struct nvram {
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u_int32_t sig;
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u_int32_t size;
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u_int32_t unknown1;
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u_int32_t unknown2;
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u_int32_t unknown3;
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char data[];
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};
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int nvram2env_attach(device_t);
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int nvram2env_probe(device_t);
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extern devclass_t nvram2env_devclass;
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extern driver_t nvram2env_driver;
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#endif /* SYS_DEV_NVRAM2ENV_NVRAM2ENV_H_ */
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