/*      $OpenBSD: tea5757.h,v 1.3 2002/01/07 18:32:19 mickey Exp $      */
/* $RuOBSD: tea5757.h,v 1.2 2001/10/18 16:51:36 pva Exp $ */

/*
 * Copyright (c) 2001 Vladimir Popov <jumbo@narod.ru>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _TEA5757_H_
#define _TEA5757_H_

#include <sys/types.h>

#include <machine/bus.h>

#define TEA5757_REGISTER_LENGTH         25
#define TEA5757_FREQ                    0x0007FFF
#define TEA5757_DATA                    0x1FF8000

#define TEA5757_SEARCH_START            (1 << 24) /* 0x1000000 */
#define TEA5757_SEARCH_END              (0 << 24) /* 0x0000000 */

#define TEA5757_SEARCH_UP               (1 << 23) /* 0x0800000 */
#define TEA5757_SEARCH_DOWN             (0 << 23) /* 0x0000000 */
#define TEA5757_ACQUISITION_DELAY       100000
#define TEA5757_WAIT_DELAY              1000
#define TEA5757_SEARCH_DELAY            14        /* 14 microseconds */

#define TEA5757_STEREO                  (0 << 22) /* 0x0000000 */
#define TEA5757_MONO                    (1 << 22) /* 0x0400000 */

#define TEA5757_BAND_FM                 (0 << 20)
#define TEA5757_BAND_MW                 (1 << 20)
#define TEA5757_BAND_LW                 (2 << 20)
#define TEA5757_BAND_SW                 (3 << 20)

#define TEA5757_USER_PORT               (0 << 18)
#define TEA5757_DUMMY                   (0 << 15)

#define TEA5757_S005                    (0 << 16) /* 0x0000000 * > 5 mkV */
#define TEA5757_S010                    (2 << 16) /* 0x0020000 * > 10 mkV */
#define TEA5757_S030                    (1 << 16) /* 0x0010000 * > 30 mkV */
#define TEA5757_S150                    (3 << 16) /* 0x0030000 * > 150 mkV */

#define TEA5757_TEA5759                 (1 << 0)

struct tea5757_t {
        bus_space_tag_t iot;
        bus_space_handle_t      ioh;
        bus_size_t      offset;
        int     flags;

        void    (*init)(bus_space_tag_t, bus_space_handle_t, bus_size_t,
                        u_int32_t); /* init value */
        void    (*rset)(bus_space_tag_t, bus_space_handle_t, bus_size_t,
                        u_int32_t); /* reset value */
        void    (*write_bit)(bus_space_tag_t, bus_space_handle_t, bus_size_t,
                        int); /* the bit */
        u_int32_t       (*read)(bus_space_tag_t, bus_space_handle_t, bus_size_t);
};

u_int32_t       tea5757_encode_freq(u_int32_t, int);
u_int32_t       tea5757_decode_freq(u_int32_t, int);
u_int32_t       tea5757_encode_lock(u_int8_t);
u_int8_t        tea5757_decode_lock(u_int32_t);

u_int32_t       tea5757_set_freq(struct tea5757_t *, u_int32_t, u_int32_t, u_int32_t);
void    tea5757_search(struct tea5757_t *, u_int32_t, u_int32_t, int);

void    tea5757_hardware_write(struct tea5757_t *, u_int32_t);

#endif /* _TEA5757_H_ */