firmware/export/ipod_remote_tuner.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id: ipod_remote_tuner.h
   9  * Tuner header for the ipod remote tuner and others remote tuners
  10  *
  11  * Copyright (C) 2009 Laurent Gautier
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19  * KIND, either express or implied.
  20  *
  21  ****************************************************************************/
  22
  23 #ifndef _IPOD_REMOTE_TUNER_H_
  24 #define _IPOD_REMOTE_TUNER_H_
  25
  26 #define HAVE_RADIO_REGION
  27 #define TIMEOUT_VALUE 20
  28
  29 extern int radio_present;
  30 extern int tuner_frequency;
  31 extern int tuner_signal_power;
  32 extern int radio_tuned;
  33
  34 /* update tuner state: plugged or unplugged when in radio mode */
  35 extern void rmt_tuner_region(int region);
  36 extern void rmt_tuner_set_freq(int curr_freq);
  37 extern void rmt_tuner_freq(void);
  38 extern void rmt_tuner_scan(int direction);
  39
  40 /* tuner mode state: ON or OFF */
  41 extern void rmt_tuner_sleep(int state);
  42
  43 /* parameters are stereo/mono, deemphasis, delta freq... */
  44 extern void rmt_tuner_set_param(unsigned char tuner_param);
  45
  46 extern void rmt_tuner_mute(int value);
  47 extern void rmt_tuner_signal_power(unsigned char value);
  48
  49 extern void rmt_tuner_rds_data(void);
  50
  51 struct rmt_tuner_region_data
  52 {
  53     /* 0: 50us, 1: 75us */
  54     unsigned char deemphasis;
  55     /* 0: europe, 1: japan (BL in TEA spec)*/
  56     unsigned char band;
  57     /* 0: us/australia (200kHz), 1: europe/japan (100kHz), 2: (50kHz) */
  58     unsigned char spacing;
  59 } __attribute__((packed));
  60
  61 extern const struct rmt_tuner_region_data
  62                                 rmt_tuner_region_data[TUNER_NUM_REGIONS];
  63
  64 int ipod_rmt_tuner_set(int setting, int value);
  65 int ipod_rmt_tuner_get(int setting);
  66 char* ipod_get_rds_info(int setting);
  67
  68
  69 #ifndef CONFIG_TUNER_MULTI
  70 #define tuner_set ipod_rmt_tuner_set
  71 #define tuner_get ipod_rmt_tuner_get
  72 #define tuner_get_rds_info ipod_get_rds_info
  73 #endif
  74
  75 #endif /* _IPOD_REMOTE_TUNER_H_ */