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Radio and radio recording for Samsung YH-920.

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There is no simple method to detect radio through the 3-wire interface, so it's
not implemented for the YH-925 for now. YH-920 always has a radio.

Change-Id: Iea484d752915fcd40dbbbd7dbbf13e81aaf548db
This commit is contained in:
Szymon Dziok 2014-06-17 23:13:15 +00:00
parent 0c3dca1f33
commit eacd76cb80
11 changed files with 335 additions and 44 deletions
Download patch file Download diff file Expand all files Collapse all files

114
firmware/drivers/audio/ak4537.c
View file

@ -221,34 +221,64 @@ void audiohw_set_frequency(int fsel)
}
#if defined(HAVE_RECORDING)
void audiohw_enable_recording(bool source_mic)
void audiohw_set_recsrc(int source)
{
if (source_mic)
switch(source)
{
/* enable mic power supply */
case AUDIO_SRC_PLAYBACK:
/* disable mic power supply */
#if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925)
/* additionally select external mic */
akc_set(AK4537_MIC, MPWRE | MSEL);
akc_clear(AK4537_MIC, MPWRE);
#else
akc_set(AK4537_MIC, MPWRI);
akc_clear(AK4537_MIC, MPWRI);
#endif
/* power down ADC, mic preamp and line amp */
akc_clear(AK4537_PM1, PMADL | PMMICL | PMIPGL);
akc_clear(AK4537_PM3, PMADR | PMMICR | PMIPGR);
/* mic out is connected to line1 input */
akc_clear(AK4537_PM3, INL | INR);
/* break ADC -> DAC connection */
akc_clear(AK4537_MODE2, LOOP);
break;
#if (INPUT_SRC_CAPS & SRC_CAP_FMRADIO)
case AUDIO_SRC_FMRADIO:
/* disable mic power supply */
#if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925)
akc_clear(AK4537_MIC, MPWRE);
#else
akc_clear(AK4537_MIC, MPWRI);
#endif
/* disable mic preamp */
akc_clear(AK4537_PM1, PMMICL);
/* Select line2 input: Radio */
akc_set(AK4537_PM3, INL | INR);
/* route ALC output to ADC input */
akc_set(AK4537_MIC, MICAD);
/* set ALC (automatic level control) to manual mode */
akc_clear(AK4537_ALC1, ALC1);
/* set gain control to 'dependent' (left&right at the same time) */
akc_clear(AK4537_MIC, IPGAC);
/* power up mic preamp, left channel ADC and line in */
akc_set(AK4537_PM1, PMMICL | PMIPGL | PMADL);
/* power up right channel ADC and line in */
/* set gain control to independent left & right gain */
akc_set(AK4537_MIC, IPGAC);
/* power up left channel input and ADC */
akc_set(AK4537_PM1, PMADL | PMIPGL);
/* power up right channel input and ADC */
akc_set(AK4537_PM3, PMADR | PMIPGR);
}
else
{
/* set line in vol = 0 dB */
akc_write(AK4537_IPGAL, 0x2f);
akc_write(AK4537_IPGAR, 0x2f);
/* ADC -> DAC, external data to DAC ignored */
akc_set(AK4537_MODE2, LOOP);
break;
#endif /* INPUT_SRC_CAPS & SRC_CAP_FMRADIO */
#if (INPUT_SRC_CAPS & SRC_CAP_LINEIN)
case AUDIO_SRC_LINEIN:
/* disable mic power supply */
#if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925)
akc_clear(AK4537_MIC, MPWRE);
@ -272,25 +302,44 @@ void audiohw_enable_recording(bool source_mic)
akc_set(AK4537_PM1, PMADL | PMIPGL);
/* power up right channel input and ADC */
akc_set(AK4537_PM3, PMADR | PMIPGR);
}
/* ADC -> DAC, external data to DAC ignored */
akc_set(AK4537_MODE2, LOOP);
}
void audiohw_disable_recording(void)
{
/* disable mic power supply */
/* ADC -> DAC, external data to DAC ignored */
akc_set(AK4537_MODE2, LOOP);
break;
#endif /* INPUT_SRC_CAPS & SRC_CAP_LINEIN */
#if (INPUT_SRC_CAPS & SRC_CAP_MIC)
case AUDIO_SRC_MIC:
/* enable mic power supply */
#if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925)
akc_clear(AK4537_MIC, MPWRE);
/* additionally select external mic */
akc_set(AK4537_MIC, MPWRE | MSEL);
#else
akc_clear(AK4537_MIC, MPWRI);
akc_set(AK4537_MIC, MPWRI);
#endif
/* power down ADC, mic preamp and line amp */
akc_clear(AK4537_PM1, PMADL | PMMICL | PMIPGL);
akc_clear(AK4537_PM3, PMADR | PMMICR | PMIPGR);
/* break ADC -> DAC connection */
akc_clear(AK4537_MODE2, LOOP);
/* mic out is connected to line1 input */
akc_clear(AK4537_PM3, INL | INR);
/* route ALC output to ADC input */
akc_set(AK4537_MIC, MICAD);
/* set ALC (automatic level control) to manual mode */
akc_clear(AK4537_ALC1, ALC1);
/* set gain control to 'dependent' (left&right at the same time) */
akc_clear(AK4537_MIC, IPGAC);
/* power up mic preamp, left channel ADC and line in */
akc_set(AK4537_PM1, PMMICL | PMIPGL | PMADL);
/* power up right channel ADC and line in */
akc_set(AK4537_PM3, PMADR | PMIPGR);
/* ADC -> DAC, external data to DAC ignored */
akc_set(AK4537_MODE2, LOOP);
break;
#endif /* INPUT_SRC_CAPS & SRC_CAP_MIC) */
} /* switch(source) */
}
void audiohw_set_recvol(int left, int right, int type)
@ -331,9 +380,4 @@ void audiohw_set_recvol(int left, int right, int type)
return;
}
}
void audiohw_set_monitor(bool enable)
{
(void)enable;
}
#endif /* HAVE_RECORDING */