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