fc9695eb47
* Remove unused bits like the radio event and simplify basic radio interface. It can be more self-contained with rds.h only required by radio and tuner code. * Add post-processing to text a-la Silicon Labs AN243. The chip's error correction can only do so much; additional checks are highly recommended. Simply testing for two identical messages in a row is extremely effective and I've never seen corrupted text since doing that, even with mediocre reception. Groups segments must arrive in order, not randomly; logic change only accepts them in order, starting at 0. Time readout was made a bit better but really we'd need to use verbose mode and ensure that no errors were seen during receiving of time and more checks would be need to have a stable PI. The text is the important bit anyway. * Time out of stale text. * Text is no longer updated until a complete group has been received, as is specified in the standard. Perhaps go back to scrolling text lines in the radio screen? * Add proper character conversion to UTF-8. Only the default G0 table for the moment. The other two could be added in. * Add variants "RDS_CFG_PROCESS" and "RDS_CFG_PUSH" to allow the option for processed RDS data to be pushed to the driver and still do proper post-processing (only text conversion for now for the latter). Change-Id: I4d83f8b2e89a209a5096d15ec266477318c66925
68 lines
2 KiB
C
68 lines
2 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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*
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* $Id$
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*
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* Tuner header for the Silicon Labs SI4700
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*
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* Copyright (C) 2008 Dave Chapman
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef _SI4700_H_
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#define _SI4700_H_
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#include <stdint.h>
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#define HAVE_RADIO_REGION
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#define HAVE_RADIO_RSSI
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struct si4700_dbg_info
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{
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uint16_t regs[16]; /* Read registers */
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};
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bool si4700_detect(void);
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void si4700_init(void) INIT_ATTR;
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int si4700_set(int setting, int value);
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int si4700_get(int setting);
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void si4700_dbg_info(struct si4700_dbg_info *nfo);
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/* For interrupt-based mono/stereo indicator */
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bool si4700_st(void);
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#ifdef HAVE_RDS_CAP
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/** RDS support **/
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void si4700_rds_init(void) INIT_ATTR;
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/* Radio is fully powered up or about to be powered down */
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void si4700_rds_powerup(bool on);
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#if (CONFIG_RDS & RDS_CFG_ISR)
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/* Read raw RDS info for processing - asynchronously */
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void si4700_rds_read_raw_async(unsigned char *buf, int count); /* implemented by target */
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void si4700_rds_interrupt(void);
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#endif /* (CONFIG_RDS & RDS_CFG_ISR) */
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/* Read raw RDS info for processing */
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void si4700_rds_process(void);
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#endif /* HAVE_RDS_CAP */
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#ifndef CONFIG_TUNER_MULTI
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#define tuner_set si4700_set
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#define tuner_get si4700_get
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#endif
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#endif /* _SI4700_H_ */
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