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/dev/ic/lm700x.h

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    1 /* $NetBSD: lm700x.h,v 1.2 2007/10/19 11:59:55 ad Exp $ */
    2 /*      $OpenBSD: lm700x.h,v 1.2 2001/12/06 16:28:18 mickey Exp $       */
    3 /* $RuOBSD: lm700x.h,v 1.2 2001/10/18 16:51:36 pva Exp $ */
    4 
    5 /*
    6  * Copyright (c) 2001 Vladimir Popov <jumbo@narod.ru>
    7  * All rights reserved.
    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 ``AS IS'' AND ANY EXPRESS OR
   19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
   24  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   26  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   27  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   28  */
   29 
   30 #ifndef _LM700X_H_
   31 #define _LM700X_H_
   32 
   33 #include <sys/types.h>
   34 
   35 #include <sys/bus.h>
   36 
   37 #define LM700X_REGISTER_LENGTH  24
   38 
   39 #define LM700X_DATA_MASK        0xFFC000
   40 #define LM700X_FREQ_MASK        0x003FFF
   41 
   42 #define LM700X_FREQ(x)          (x << 0)        /* 0x003FFF */
   43 #define LM700X_LSI(x)           (x << 14)       /* 0x00C000 */ /* always zero */
   44 #define LM700X_BAND(x)          (x << 16)       /* 0x070000 */
   45 #define         LM700X_STEREO   LM700X_BAND(3)
   46 #define         LM700X_MONO     LM700X_BAND(1)
   47 #define LM700X_TIME_BASE(x)     (x << 19)       /* 0x080000 */ /* always zero */
   48 #define LM700X_REF_FREQ(x)      (x << 20)       /* 0x700000 */
   49 #define         LM700X_REF_100  LM700X_REF_FREQ(0)
   50 #define         LM700X_REF_025  LM700X_REF_FREQ(2)
   51 #define         LM700X_REF_050  LM700X_REF_FREQ(4)
   52 /* The rest is for an AM band */
   53 
   54 #define LM700X_DIVIDER_AM       (0 << 23)       /* 0x000000 */
   55 #define LM700X_DIVIDER_FM       (1 << 23)       /* 0x800000 */
   56 
   57 #define LM700X_WRITE_DELAY      6               /* 6 microseconds */
   58 
   59 struct lm700x_t {
   60         bus_space_tag_t iot;
   61         bus_space_handle_t      ioh;
   62         bus_size_t      offset;
   63 
   64         u_int32_t       wzcl;   /* write zero clock low */
   65         u_int32_t       wzch;   /* write zero clock high */
   66         u_int32_t       wocl;   /* write one clock low */
   67         u_int32_t       woch;   /* write one clock high */
   68         u_int32_t       initdata;
   69         u_int32_t       rsetdata;
   70 
   71         void (*init)(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t);
   72         void (*rset)(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t);
   73 };
   74 
   75 u_int32_t       lm700x_encode_freq(u_int32_t, u_int32_t);
   76 u_int32_t       lm700x_encode_ref(u_int8_t);
   77 u_int8_t        lm700x_decode_ref(u_int32_t);
   78 void    lm700x_hardware_write(struct lm700x_t *, u_int32_t, u_int32_t);
   79 
   80 #endif /* _LM700X_H_ */

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