bcm2835_bscvar.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
    5  * Copyright (c) 2013 Luiz Otavio O Souza <loos@freebsd.org>
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  * $FreeBSD$
   30  */
   31 
   32 #ifndef _BCM2835_BSCVAR_H
   33 #define _BCM2835_BSCVAR_H
   34 
   35 struct iic_msg;
   36 
   37 struct bcm_bsc_softc {
   38         device_t                sc_dev;
   39         device_t                sc_iicbus;
   40         struct mtx              sc_mtx;
   41         struct resource *       sc_mem_res;
   42         struct resource *       sc_irq_res;
   43         void *                  sc_intrhand;
   44         struct iic_msg *        sc_curmsg;
   45         bus_space_tag_t         sc_bst;
   46         bus_space_handle_t      sc_bsh;
   47         int                     sc_debug;
   48         uint16_t                sc_replen;
   49         uint16_t                sc_totlen;
   50         uint16_t                sc_resid;
   51         uint16_t                sc_dlen;
   52         uint8_t *               sc_data;
   53         uint8_t                 sc_flags;
   54 };
   55 
   56 #define BCM_I2C_BUSY            0x01
   57 #define BCM_I2C_READ            0x02
   58 #define BCM_I2C_ERROR           0x04
   59 #define BCM_I2C_DONE            0x08
   60 
   61 #define BCM_BSC_WRITE(_sc, _off, _val)          \
   62     bus_space_write_4((_sc)->sc_bst, (_sc)->sc_bsh, _off, _val)
   63 #define BCM_BSC_READ(_sc, _off)                 \
   64     bus_space_read_4((_sc)->sc_bst, (_sc)->sc_bsh, _off)
   65 
   66 #define BCM_BSC_LOCK(_sc)                       \
   67     mtx_lock(&(_sc)->sc_mtx)
   68 #define BCM_BSC_UNLOCK(_sc)                     \
   69     mtx_unlock(&(_sc)->sc_mtx)
   70 
   71 #endif  /* _BCM2835_BSCVAR_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/arm/broadcom/bcm2835/bcm2835_bscvar.h

FreeBSD/Linux Kernel Cross Reference
sys/arm/broadcom/bcm2835/bcm2835_bscvar.h