(not bug) reset EMU10K2 analog pins

Gunars · May 8, 2006, 01:22 PM

How to fire Reset signal on pin 87, which is conected to analog cards ADC and DAC?
Hopefully it should be possible by using ksdriver advanced microcode editor, or I am not right. Essentially I need driver routine for delayed reset, which could fire 87 pin and recallibrate ADC zerro offset.

see attached picture [color=#0000ff]
[/color]www.hardwareheaven.com/attachment.php?attachmentid=62&stc=1

Is that possible? If there is need for more discussion, my private e-mail is:
targen59@hotmail.com. You are the only hope.

Dear moderator, please excuse me for posting this message here.
But myself I could't locate beter place for EMU10K2 chipset itself, so please forward/remove message afterwards.

chipwizme · Apr 2, 2009, 02:29 AM

I'm not 100% positive, but from the ALSA source code, it looks like you can just repeat the initialization routines. What are you trying to accomplish? Why do you need to do this?

Quote:

static int snd_emu10k1_ecard_init(struct snd_emu10k1 *emu)
{
unsigned int hc_value;

/* Set up the initial settings */
emu->ecard_ctrl = EC_RAW_RUN_MODE |
EC_SPDIF0_SELECT(EC_DEFAULT_SPDIF0_SEL) |
EC_SPDIF1_SELECT(EC_DEFAULT_SPDIF1_SEL);

/* Step 0: Set the codec type in the hardware control register
* and enable audio output */
hc_value = inl(emu->port + HCFG);
outl(hc_value | HCFG_AUDIOENABLE | HCFG_CODECFORMAT_I2S, emu->port + HCFG);
inl(emu->port + HCFG);

/* Step 1: Turn off the led and deassert TRIM_CS */
snd_emu10k1_ecard_write(emu, EC_ADCCAL | EC_LEDN | EC_TRIM_CSN);

/* Step 2: Calibrate the ADC and DAC */
snd_emu10k1_ecard_write(emu, EC_DACCAL | EC_LEDN | EC_TRIM_CSN);

/* Step 3: Wait for awhile; XXX We can't get away with this
* under a real operating system; we'll need to block and wait that
* way. */
snd_emu10k1_wait(emu, 48000);

/* Step 4: Switch off the DAC and ADC calibration. Note
* That ADC_CAL is actually an inverted signal, so we assert
* it here to stop calibration. */
snd_emu10k1_ecard_write(emu, EC_ADCCAL | EC_LEDN | EC_TRIM_CSN);

/* Step 4: Switch into run mode */
snd_emu10k1_ecard_write(emu, emu->ecard_ctrl);

/* Step 5: Set the analog input gain */
snd_emu10k1_ecard_setadcgain(emu, EC_DEFAULT_ADC_GAIN);

return 0;
}

where:

Quote:

#define EC_ADCCAL 0x0400L
#define EC_ADCRSTN 0x0800L
#define EC_DACCAL 0x1000L

TravelRec. · Apr 2, 2009, 05:51 AM

I would suggest, you write an e-Mail to Eugene, go to Official kX Project Site -- News -> contact

May 8, 2006, 01:22 PM	#1
Gunars DriverHeaven Newbie Join Date: Nov 2005 Posts: 2 Rep Power: 0	(not bug) reset EMU10K2 analog pins How to fire Reset signal on pin 87, which is conected to analog cards ADC and DAC? Hopefully it should be possible by using ksdriver advanced microcode editor, or I am not right. Essentially I need driver routine for delayed reset, which could fire 87 pin and recallibrate ADC zerro offset. see attached picture [color=#0000ff] [/color]www.hardwareheaven.com/attachment.php?attachmentid=62&stc=1 Is that possible? If there is need for more discussion, my private e-mail is: targen59@hotmail.com. You are the only hope. Dear moderator, please excuse me for posting this message here. But myself I could't locate beter place for EMU10K2 chipset itself, so please forward/remove message afterwards. Attached Thumbnails Last edited by Gunars; May 8, 2006 at 01:37 PM.

Apr 2, 2009, 05:51 AM	#3
TravelRec. Alternative Audioproductions Join Date: Sep 2003 Location: Germany / Sachsen-Anhalt Posts: 1,710 Rep Power: 0	Re: (not bug) reset EMU10K2 analog pins I would suggest, you write an e-Mail to Eugene, go to Official kX Project Site -- News -> contact __________________ Always take a look behind.