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_ */
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