terasic_de4led.h

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 /*-
    2  * Copyright (c) 2012 Robert N. M. Watson
    3  * All rights reserved.
    4  *
    5  * This software was developed by SRI International and the University of
    6  * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
    7  * ("CTSRD"), as part of the DARPA CRASH research programme.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   28  * SUCH DAMAGE.
   29  *
   30  * $FreeBSD: releng/11.0/sys/dev/terasic/de4led/terasic_de4led.h 245380 2013-01-13 16:57:11Z rwatson $
   31  */
   32 
   33 #ifndef _DEV_TERASIC_DE4LED_H_
   34 #define _DEV_TERASIC_DE4LED_H_
   35 
   36 #define TERASIC_DE4LED_NUMLEDS  8
   37 struct terasic_de4led_softc {
   38         device_t         tdl_dev;
   39         int              tdl_unit;
   40         struct resource *tdl_res;
   41         int              tdl_rid;
   42         struct mtx       tdl_lock;
   43         uint8_t          tdl_bits;
   44         struct cdev     *tdl_leds[TERASIC_DE4LED_NUMLEDS];
   45 };
   46 
   47 #define TERASIC_DE4LED_LOCK(sc)         mtx_lock(&(sc)->tdl_lock)
   48 #define TERASIC_DE4LED_LOCK_ASSERT(sc)  mtx_assert(&(sc)->tdl_lock, MA_OWNED)
   49 #define TERASIC_DE4LED_LOCK_DESTROY(sc) mtx_destroy(&(sc)->tdl_lock)
   50 #define TERASIC_DE4LED_LOCK_INIT(sc)    mtx_init(&(sc)->tdl_lock,       \
   51                                             "terasic_de4led", NULL, MTX_DEF)
   52 #define TERASIC_DE4LED_UNLOCK(sc)       mtx_unlock(&(sc)->tdl_lock)
   53 
   54 /*
   55  * Setting and clearing LEDs.  tdl_bits is in the bit order preferred for I/O.
   56  * The LED elements are labelled 1..8 on the DE-4, so bit 0 is LED 1, and so
   57  * on.
   58  */
   59 #define TERASIC_DE4LED_CLEARBAR(sc) do {                                \
   60         (sc)->tdl_bits = 0;                                             \
   61 } while (0)
   62 #define TERASIC_DE4LED_SETLED(sc, led, onoff) do {                      \
   63         (sc)->tdl_bits &= ~(1 << (led));                                \
   64         (sc)->tdl_bits |= ((onoff != 0) ? 1 : 0) << (led);              \
   65 } while (0)
   66 
   67 /*
   68  * Only one offset matters for this device -- 0.
   69  */
   70 #define TERASIC_DE4LED_OFF_LED          0
   71 
   72 void    terasic_de4led_attach(struct terasic_de4led_softc *sc);
   73 void    terasic_de4led_detach(struct terasic_de4led_softc *sc);
   74 
   75 extern devclass_t       terasic_de4led_devclass;
   76 
   77 #endif /* _DEV_TERASIC_DE4LED_H_ */

Cache object: b5985c6e3c58c7566eae0f831c52874c

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/dev/terasic/de4led/terasic_de4led.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/terasic/de4led/terasic_de4led.h