diff options
Diffstat (limited to 'sys/dev/bhnd/nvram/bhnd_nvramvar.h')
| -rw-r--r-- | sys/dev/bhnd/nvram/bhnd_nvramvar.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/sys/dev/bhnd/nvram/bhnd_nvramvar.h b/sys/dev/bhnd/nvram/bhnd_nvramvar.h new file mode 100644 index 000000000000..890bd2e31741 --- /dev/null +++ b/sys/dev/bhnd/nvram/bhnd_nvramvar.h @@ -0,0 +1,68 @@ +/*- + * Copyright (c) 2015-2016 Landon Fuller <landonf@FreeBSD.org> + * 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, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any + * redistribution must be conditioned upon including a substantially + * similar Disclaimer requirement for further binary redistribution. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY + * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES. + * + * $FreeBSD$ + */ + +#ifndef _BHND_NVRAM_BHND_NVRAMVAR_H_ +#define _BHND_NVRAM_BHND_NVRAMVAR_H_ + +#include <sys/param.h> +#include <sys/bus.h> + +#include "bhnd_nvram_parser.h" + +DECLARE_CLASS(bhnd_nvram_driver); + +int bhnd_nvram_probe(device_t dev); +int bhnd_nvram_attach(device_t dev, void *data, size_t size, + bhnd_nvram_format fmt); +int bhnd_nvram_resume(device_t dev); +int bhnd_nvram_suspend(device_t dev); +int bhnd_nvram_detach(device_t dev); + +/** + * bhnd_nvram driver instance state. Must be first member of all subclass + * softc structures. + */ +struct bhnd_nvram_softc { + device_t dev; + struct mtx mtx; /**< nvram mutex */ + struct bhnd_nvram nvram; /**< nvram shadow */ +}; + + +#define BHND_NVRAM_LOCK_INIT(sc) \ + mtx_init(&(sc)->mtx, device_get_nameunit((sc)->dev), \ + "bhnd_nvram lock", MTX_DEF) +#define BHND_NVRAM_LOCK(sc) mtx_lock(&(sc)->mtx) +#define BHND_NVRAM_UNLOCK(sc) mtx_unlock(&(sc)->mtx) +#define BHND_NVRAM_LOCK_ASSERT(sc, what) mtx_assert(&(sc)->mtx, what) +#define BHND_NVRAM_LOCK_DESTROY(sc) mtx_destroy(&(sc)->mtx) + +#endif /* _BHND_NVRAM_BHND_NVRAMVAR_H_ */ |