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/spigenio.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2000 Doug Rabson
    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/spigenio.h 332240 2018-04-07 20:53:34Z ian $
   29  */
   30 
   31 #ifndef _SYS_SPIGENIO_H_
   32 #define _SYS_SPIGENIO_H_
   33 
   34 #include <sys/_iovec.h>
   35 
   36 struct spigen_transfer {
   37         struct iovec st_command; /* master to slave */
   38         struct iovec st_data;    /* slave to master and/or master to slave */
   39 };
   40 
   41 struct spigen_transfer_mmapped {
   42         size_t stm_command_length; /* at offset 0 in mmap(2) area */
   43         size_t stm_data_length;    /* at offset stm_command_length */
   44 };
   45 
   46 #define SPIGENIOC_BASE     'S'
   47 #define SPIGENIOC_TRANSFER         _IOW(SPIGENIOC_BASE, 0, \
   48             struct spigen_transfer)
   49 #define SPIGENIOC_TRANSFER_MMAPPED _IOW(SPIGENIOC_BASE, 1, \
   50             struct spigen_transfer_mmapped)
   51 #define SPIGENIOC_GET_CLOCK_SPEED  _IOR(SPIGENIOC_BASE, 2, uint32_t)
   52 #define SPIGENIOC_SET_CLOCK_SPEED  _IOW(SPIGENIOC_BASE, 3, uint32_t)
   53 #define SPIGENIOC_GET_SPI_MODE     _IOR(SPIGENIOC_BASE, 4, uint32_t)
   54 #define SPIGENIOC_SET_SPI_MODE     _IOW(SPIGENIOC_BASE, 5, uint32_t)
   55 
   56 #endif /* !_SYS_SPIGENIO_H_ */

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