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recording on Samsung YH-820/YH-92x
Change-Id: I6eac4cf6c16a322910ad17bfbf3105e330cd0e36 Reviewed-on: http://gerrit.rockbox.org/815 Reviewed-by: Szymon Dziok <b0hoon@o2.pl> Tested: Szymon Dziok <b0hoon@o2.pl>
This commit is contained in:
Sebastian Leonhardt
Szymon Dziok
parent
5237b36a85
commit
53efa59e12
6 changed files with 118 additions and 16 deletions
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@ -253,17 +253,14 @@ static const struct button_mapping button_context_pitchscreen[] = {
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static const struct button_mapping button_context_recscreen[] = {
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{ ACTION_REC_PAUSE, BUTTON_PLAY|BUTTON_REL, BUTTON_NONE },
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#ifdef SAMSUNG_YH820
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/* the yh-820 has a rec button */
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{ ACTION_REC_NEWFILE, BUTTON_REC, BUTTON_NONE },
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#else
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/* the yh-920 & yh-925 have a rec switch */
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{ ACTION_REC_NEWFILE, BUTTON_PLAY|BUTTON_REPEAT, BUTTON_NONE },
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#endif
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{ ACTION_REC_NEWFILE, BUTTON_FFWD|BUTTON_REL, BUTTON_NONE },
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{ ACTION_STD_MENU, BUTTON_REC, BUTTON_NONE },
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{ ACTION_STD_MENU, BUTTON_REW|BUTTON_REPEAT, BUTTON_REW },
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{ ACTION_STD_CANCEL, BUTTON_REW|BUTTON_REL, BUTTON_NONE },
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{ ACTION_SETTINGS_INC, BUTTON_RIGHT, BUTTON_NONE },
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{ ACTION_SETTINGS_INCREPEAT, BUTTON_RIGHT|BUTTON_REPEAT, BUTTON_NONE },
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{ ACTION_SETTINGS_DEC, BUTTON_LEFT, BUTTON_NONE },
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{ ACTION_SETTINGS_DECREPEAT, BUTTON_LEFT|BUTTON_REPEAT, BUTTON_NONE },
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@ -223,22 +223,116 @@ void audiohw_set_frequency(int fsel)
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#if defined(HAVE_RECORDING)
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void audiohw_enable_recording(bool source_mic)
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{
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(void)source_mic;
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if (source_mic)
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{
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/* enable mic power supply */
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#if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925)
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/* additionally select external mic */
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akc_set(AK4537_MIC, MPWRE | MSEL);
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#else
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akc_set(AK4537_MIC, MPWRI);
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#endif
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/* mic out is connected to line1 input */
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akc_clear(AK4537_PM3, INL | INR);
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/* route ALC output to ADC input */
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akc_set(AK4537_MIC, MICAD);
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/* set ALC (automatic level control) to manual mode */
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akc_clear(AK4537_ALC1, ALC1);
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/* set gain control to 'dependent' (left&right at the same time) */
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akc_clear(AK4537_MIC, IPGAC);
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/* power up mic preamp, left channel ADC and line in */
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akc_set(AK4537_PM1, PMMICL | PMIPGL | PMADL);
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/* power up right channel ADC and line in */
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akc_set(AK4537_PM3, PMADR | PMIPGR);
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}
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else
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{
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/* disable mic power supply */
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#if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925)
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akc_clear(AK4537_MIC, MPWRE);
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#else
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akc_clear(AK4537_MIC, MPWRI);
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#endif
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/* disable mic preamp */
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akc_clear(AK4537_PM1, PMMICL);
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/* Select line1 input */
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akc_clear(AK4537_PM3, INL | INR);
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/* route ALC output to ADC input */
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akc_set(AK4537_MIC, MICAD);
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/* set ALC (automatic level control) to manual mode */
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akc_clear(AK4537_ALC1, ALC1);
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/* set gain control to independent left & right gain */
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akc_set(AK4537_MIC, IPGAC);
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/* power up left channel input and ADC */
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akc_set(AK4537_PM1, PMADL | PMIPGL);
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/* power up right channel input and ADC */
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akc_set(AK4537_PM3, PMADR | PMIPGR);
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}
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}
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void audiohw_disable_recording(void)
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{
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/* disable mic power supply */
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#if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925)
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akc_clear(AK4537_MIC, MPWRE);
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#else
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akc_clear(AK4537_MIC, MPWRI);
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#endif
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/* power down ADC, mic preamp and line amp */
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akc_clear(AK4537_PM1, PMADL | PMMICL | PMIPGL);
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akc_clear(AK4537_PM3, PMADR | PMMICR | PMIPGR);
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}
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void audiohw_set_recvol(int left, int right, int type)
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{
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(void)left;
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(void)right;
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(void)type;
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switch (type)
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{
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case AUDIO_GAIN_MIC:
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/* the mic preamp has a fixed gain of +15 dB. There's an additional
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* activatable +20dB mic gain stage. The signal is then routed to
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* the Line1 input, where you find the line attenuator with a range
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* from -23.5 to +12dB, so we have a total gain range of -8.0 .. +47dB.
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* NOTE: the datasheet state's different attenuator levels for mic and
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* line input, but that's not precise. The +15dB difference result only
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* from the mic stage.
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* NOTE2: the mic is connected to the line1 input (via mic preamp),
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* so if a line signal is present, you will always record a mixup.
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*/
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/* If gain is > 20 dB we use the additional gain stage */
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if (left > 20) {
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akc_set(AK4537_MIC, MGAIN);
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left -= 20;
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}
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else {
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akc_clear(AK4537_MIC, MGAIN);
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}
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/* the remains is done by the line input amp */
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left = (left+8)*2;
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akc_write(AK4537_IPGAL, left);
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break;
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case AUDIO_GAIN_LINEIN:
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/* convert dB to register value */
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left = (left+23)*2+1;
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right = (right+23)*2+1;
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akc_write(AK4537_IPGAL, left);
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akc_write(AK4537_IPGAR, right);
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break;
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default:
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return;
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}
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}
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void audiohw_set_monitor(bool enable)
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{
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(void)enable;
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if (enable)
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/* mix input signal to headphone output */
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akc_set(AK4537_SIGSEL2, MICL);
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else
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akc_clear(AK4537_SIGSEL2, MICL);
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}
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#endif /* HAVE_RECORDING */
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@ -22,8 +22,19 @@
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#ifndef _AK4537_H
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#define _AK4537_H
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#define AUDIOHW_CAPS (LIN_GAIN_CAP | MIC_GAIN_CAP)
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/* Volume goes from -127.0 ... 0 dB in 0.5 dB increments */
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AUDIOHW_SETTING(VOLUME, "dB", 0, 1, -128, 0, -25)
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#ifdef HAVE_RECORDING
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/* line input: -23 .. +12dB */
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AUDIOHW_SETTING(LEFT_GAIN, "dB", 0, 1, -23, 12, 0)
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AUDIOHW_SETTING(RIGHT_GAIN, "dB", 0, 1, -23, 12, 0)
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/* mic gain: +15dB fixed +20dB switchable mic preamp gain
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and the line stage of -23..+12dB make a total range of -8..+47dB */
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AUDIOHW_SETTING(MIC_GAIN, "dB", 0, 1, -8, 47, 20)
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#endif /* HAVE_RECORDING */
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#define AKC_NUM_REGS 0x11
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@ -7,7 +7,7 @@
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#define MODEL_NAME "Samsung YH-820"
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/* define this if you have recording possibility */
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/* todo #define HAVE_RECORDING */
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#define HAVE_RECORDING
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/* Define bitmask of input sources - recordable bitmask can be defined
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explicitly if different */
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@ -7,7 +7,7 @@
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#define MODEL_NAME "Samsung YH-920"
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/* define this if you have recording possibility */
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/* todo #define HAVE_RECORDING */
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#define HAVE_RECORDING
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/* Define bitmask of input sources - recordable bitmask can be defined
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explicitly if different */
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@ -7,7 +7,7 @@
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#define MODEL_NAME "Samsung YH-925"
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/* define this if you have recording possibility */
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/* todo #define HAVE_RECORDING */
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#define HAVE_RECORDING
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/* Define bitmask of input sources - recordable bitmask can be defined
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explicitly if different */
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