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Annotation of sys/dev/ic/lm700x.h, Revision 1.1.1.1

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