firmware/export/si4700.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  *
   9  * $Id$
  10  *
  11  * Tuner header for the Silicon Labs SI4700
  12  *
  13  * Copyright (C) 2008 Dave Chapman
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  *
  20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  21  * KIND, either express or implied.
  22  *
  23  ****************************************************************************/
  24
  25 #ifndef _SI4700_H_
  26 #define _SI4700_H_
  27 #include <stdint.h>
  28
  29 #define HAVE_RADIO_REGION
  30 #define HAVE_RADIO_RSSI
  31
  32 struct si4700_dbg_info
  33 {
  34     uint16_t regs[16];  /* Read registers */
  35 };
  36
  37 bool si4700_detect(void);
  38 void si4700_init(void);
  39 int si4700_set(int setting, int value);
  40 int si4700_get(int setting);
  41 void si4700_dbg_info(struct si4700_dbg_info *nfo);
  42 /* For interrupt-based mono/stereo indicator */
  43 bool si4700_st(void);
  44
  45 /** RDS support **/
  46 void si4700_rds_init(void);
  47 /* Radio is fully powered up or about to be powered down */
  48 void si4700_rds_powerup(bool on);
  49 #ifdef RDS_ISR_PROCESSING
  50 /* Read raw RDS info for processing - asynchronously */
  51 void si4700_read_raw_async(int count); /* implemented by target */
  52 void si4700_rds_read_raw_async(void);
  53 void si4700_rds_read_raw_async_complete(unsigned char *regbuf,
  54                                         uint16_t data[4]);
  55 #else /* ndef RDS_ISR_PROCESSING */
  56 /* Read raw RDS info for processing */
  57 bool si4700_rds_read_raw(uint16_t data[4]);
  58 #endif /* RDS_ISR_PROCESSING */
  59 /* Obtain specified string */
  60 char* si4700_get_rds_info(int setting);
  61 /* Set the event flag */
  62 void si4700_rds_set_event(void);
  63
  64 #ifndef CONFIG_TUNER_MULTI
  65 #define tuner_set si4700_set
  66 #define tuner_get si4700_get
  67 #define tuner_get_rds_info si4700_get_rds_info
  68 #endif
  69
  70 #endif /* _SI4700_H_ */