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  * Copyright (c) 2012 Semihalf.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/11.1/sys/sys/slicer.h 318158 2017-05-10 21:42:12Z marius $
   27  */
   28 
   29 #ifndef _FLASH_SLICER_H_
   30 #define _FLASH_SLICER_H_
   31 
   32 #include <sys/types.h>
   33 
   34 #define FLASH_SLICES_MAX_NUM            8
   35 #define FLASH_SLICES_MAX_NAME_LEN       (32 + 1)
   36 
   37 #define FLASH_SLICES_FLAG_NONE          0
   38 #define FLASH_SLICES_FLAG_RO            1       /* Read only */
   39 
   40 #define FLASH_SLICES_FMT                "%ss.%s"
   41 
   42 struct flash_slice {
   43         off_t           base;
   44         off_t           size;
   45         const char      *label;
   46         unsigned int    flags;
   47 };
   48 
   49 #ifdef _KERNEL
   50 
   51 typedef int (*flash_slicer_t)(device_t dev, const char *provider,
   52     struct flash_slice *slices, int *slices_num);
   53 
   54 #define FLASH_SLICES_TYPE_NAND          0
   55 #define FLASH_SLICES_TYPE_CFI           1
   56 #define FLASH_SLICES_TYPE_SPI           2
   57 #define FLASH_SLICES_TYPE_MMC           3
   58 
   59 /* Use NULL for deregistering a slicer */
   60 void flash_register_slicer(flash_slicer_t slicer, u_int type, bool force);
   61 
   62 #endif /* _KERNEL */
   63 
   64 #endif /* _FLASH_SLICER_H_ */

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