The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/slicer.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2012 Semihalf.
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  *
   28  * $FreeBSD: stable/12/sys/sys/slicer.h 326256 2017-11-27 15:01:59Z pfg $
   29  */
   30 
   31 #ifndef _FLASH_SLICER_H_
   32 #define _FLASH_SLICER_H_
   33 
   34 #include <sys/types.h>
   35 
   36 #define FLASH_SLICES_MAX_NUM            8
   37 #define FLASH_SLICES_MAX_NAME_LEN       (32 + 1)
   38 
   39 #define FLASH_SLICES_FLAG_NONE          0
   40 #define FLASH_SLICES_FLAG_RO            1       /* Read only */
   41 
   42 #define FLASH_SLICES_FMT                "%ss.%s"
   43 
   44 struct flash_slice {
   45         off_t           base;
   46         off_t           size;
   47         const char      *label;
   48         unsigned int    flags;
   49 };
   50 
   51 #ifdef _KERNEL
   52 
   53 typedef int (*flash_slicer_t)(device_t dev, const char *provider,
   54     struct flash_slice *slices, int *slices_num);
   55 
   56 #define FLASH_SLICES_TYPE_NAND          0
   57 #define FLASH_SLICES_TYPE_CFI           1
   58 #define FLASH_SLICES_TYPE_SPI           2
   59 #define FLASH_SLICES_TYPE_MMC           3
   60 
   61 /* Use NULL for deregistering a slicer */
   62 void flash_register_slicer(flash_slicer_t slicer, u_int type, bool force);
   63 
   64 #endif /* _KERNEL */
   65 
   66 #endif /* _FLASH_SLICER_H_ */

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