freebsd-dev/sys/dev/nvram2env/nvram2env.h
Michael Zhilin 334453c5a9 [nvram2env] split implementation into generic & MIPS-based code
Split implementation of nvram2env to generic (MI) & MIPS-based code:

 - removed includes like "*siba*", because they are unused
 - added nvram2env_mips.c file with MIPS-specific code, code moved from nvram2env.c
 - added header file to shared defines/structures/function prototypes between MI and MIPS code

Also this fix allows to implement own nvram2env drivers.

Reviewed by:    ray, adrian (mentor)
Approved by:    adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D6513
2016-07-24 08:35:45 +00:00

89 lines
2.9 KiB
C

/*-
* Copyright (c) 2010 Aleksandr Rybalko.
* Copyright (c) 2016 Michael Zhilin.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef NVRAM2ENV_NVRAM2ENV_H_
#define NVRAM2ENV_NVRAM2ENV_H_
#define nvram2env_read_1(sc, reg) \
bus_space_read_1((sc)->sc_bt, (sc)->sc_bh,(reg))
#define nvram2env_read_2(sc, reg) \
bus_space_read_2((sc)->sc_bt, (sc)->sc_bh,(reg))
#define nvram2env_read_4(sc, reg) \
bus_space_read_4((sc)->sc_bt, (sc)->sc_bh,(reg))
#define nvram2env_write_1(sc, reg, val) \
bus_space_write_1((sc)->sc_bt, (sc)->sc_bh, \
(reg), (val))
#define nvram2env_write_2(sc, reg, val) \
bus_space_write_2((sc)->sc_bt, (sc)->sc_bh, \
(reg), (val))
#define nvram2env_write_4(sc, reg, val) \
bus_space_write_4((sc)->sc_bt, (sc)->sc_bh, \
(reg), (val))
struct nvram2env_softc {
bus_space_tag_t bst;
bus_space_handle_t bsh;
bus_addr_t addr;
int need_swap;
uint32_t sig;
uint32_t flags;
#define NVRAM_FLAGS_NOCHECK 0x0001 /* Do not check(CRC or somthing else)*/
#define NVRAM_FLAGS_GENERIC 0x0002 /* Format Generic, skip 4b and read */
#define NVRAM_FLAGS_BROADCOM 0x0004 /* Format Broadcom, use struct nvram */
#define NVRAM_FLAGS_UBOOT 0x0008 /* Format Generic, skip 4b of CRC and read */
uint32_t maxsize;
uint32_t crc;
};
#define NVRAM_MAX_SIZE 0x10000
#define CFE_NVRAM_SIGNATURE 0x48534c46
struct nvram {
u_int32_t sig;
u_int32_t size;
u_int32_t unknown1;
u_int32_t unknown2;
u_int32_t unknown3;
char data[];
};
int nvram2env_attach(device_t);
int nvram2env_probe(device_t);
extern devclass_t nvram2env_devclass;
extern driver_t nvram2env_driver;
#endif /* SYS_DEV_NVRAM2ENV_NVRAM2ENV_H_ */