spi.h

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    1 /*-
    2  * Copyright (c) 2006 M. Warner Losh <imp@FreeBSD.org>
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions
    6  * are met:
    7  * 1. Redistributions of source code must retain the above copyright
    8  *    notice, this list of conditions and the following disclaimer.
    9  * 2. Redistributions in binary form must reproduce the above copyright
   10  *    notice, this list of conditions and the following disclaimer in the
   11  *    documentation and/or other materials provided with the distribution.
   12  *
   13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   23  * SUCH DAMAGE.
   24  *
   25  * $FreeBSD$
   26  */
   27 
   28 struct spi_command {
   29         void    *tx_cmd;
   30         uint32_t tx_cmd_sz;
   31         void    *rx_cmd;
   32         uint32_t rx_cmd_sz;
   33         void    *tx_data;
   34         uint32_t tx_data_sz;
   35         void    *rx_data;
   36         uint32_t rx_data_sz;
   37 };
   38 #define SPI_COMMAND_INITIALIZER { 0 }
   39 
   40 #define SPI_CHIP_SELECT_HIGH    0x1             /* Chip select high (else low) */
   41 
   42 #ifdef FDT
   43 #define SPIBUS_FDT_PNP_INFO(t)  FDTCOMPAT_PNP_INFO(t, spibus)
   44 #else
   45 #define SPIBUS_FDT_PNP_INFO(t)
   46 #endif

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FreeBSD/Linux Kernel Cross Reference sys/dev/spibus/spi.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/spibus/spi.h