codice:
/*
* snd_usb_interface_dsd_format_quirks() is called from format.c to
* augment the PCM format bit-field for DSD types. The UAC standards
* don't have a designated bit field to denote DSD-capable interfaces,
* hence all hardware that is known to support this format has to be
* listed here.
*/
u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
struct audioformat *fp,
unsigned int sample_bytes)
{
struct usb_interface *iface;
/* Playback Designs */
if (USB_ID_VENDOR(chip->usb_id) == 0x23ba) {
switch (fp->altsetting) {
case 1:
fp->dsd_dop = true;
return SNDRV_PCM_FMTBIT_DSD_U16_LE;
case 2:
fp->dsd_bitrev = true;
return SNDRV_PCM_FMTBIT_DSD_U8;
case 3:
fp->dsd_bitrev = true;
return SNDRV_PCM_FMTBIT_DSD_U16_LE;
}
}
/* XMOS based USB DACs */
switch (chip->usb_id) {
case USB_ID(0x1511, 0x0037): /* AURALiC VEGA */
case USB_ID(0x20b1, 0x0002): /* Wyred 4 Sound DAC-2 DSD */
case USB_ID(0x20b1, 0x2004): /* Matrix Audio X-SPDIF 2 */
case USB_ID(0x20b1, 0x2008): /* Matrix Audio X-Sabre */
case USB_ID(0x20b1, 0x300a): /* Matrix Audio Mini-i Pro */
case USB_ID(0x22d9, 0x0416): /* OPPO HA-1 */
case USB_ID(0x22d9, 0x0436): /* OPPO Sonica */
case USB_ID(0x22d9, 0x0461): /* OPPO UDP-205 */
case USB_ID(0x2522, 0x0012): /* LH Labs VI DAC Infinity */
case USB_ID(0x2772, 0x0230): /* Pro-Ject Pre Box S2 Digital */
if (fp->altsetting == 2)
return SNDRV_PCM_FMTBIT_DSD_U32_BE;
break;
case USB_ID(0x16d0, 0x09dd): /* Encore mDSD */
case USB_ID(0x0d8c, 0x0316): /* Hegel HD12 DSD */
case USB_ID(0x16b0, 0x06b2): /* NuPrime DAC-10 */
case USB_ID(0x16d0, 0x0733): /* Furutech ADL Stratos */
case USB_ID(0x16d0, 0x09db): /* NuPrime Audio DAC-9 */
case USB_ID(0x1db5, 0x0003): /* Bryston BDA3 */
case USB_ID(0x20b1, 0x000a): /* Gustard DAC-X20U */
case USB_ID(0x20b1, 0x2005): /* Denafrips Ares DAC */
case USB_ID(0x20b1, 0x2009): /* DIYINHK DSD DXD 384kHz USB to I2S/DSD */
case USB_ID(0x20b1, 0x2023): /* JLsounds I2SoverUSB */
case USB_ID(0x20b1, 0x3021): /* Eastern El. MiniMax Tube DAC Supreme */
case USB_ID(0x20b1, 0x3023): /* Aune X1S 32BIT/384 DSD DAC */
case USB_ID(0x20b1, 0x302d): /* Unison Research Unico CD Due */
case USB_ID(0x20b1, 0x307b): /* CH Precision C1 DAC */
case USB_ID(0x20b1, 0x3086): /* Singxer F-1 converter board */
case USB_ID(0x22d9, 0x0426): /* OPPO HA-2 */
case USB_ID(0x22e1, 0xca01): /* HDTA Serenade DSD */
case USB_ID(0x249c, 0x9326): /* M2Tech Young MkIII */
case USB_ID(0x2616, 0x0106): /* PS Audio NuWave DAC */
case USB_ID(0x2622, 0x0041): /* Audiolab M-DAC+ */
case USB_ID(0x27f7, 0x3002): /* W4S DAC-2v2SE */
case USB_ID(0x29a2, 0x0086): /* Mutec MC3+ USB */
case USB_ID(0x6b42, 0x0042): /* MSB Technology */
if (fp->altsetting == 3)
return SNDRV_PCM_FMTBIT_DSD_U32_BE;
break;
/* Amanero Combo384 USB based DACs with native DSD support */
case USB_ID(0x16d0, 0x071a): /* Amanero - Combo384 */
case USB_ID(0x2ab6, 0x0004): /* T+A DAC8DSD-V2.0, MP1000E-V2.0, MP2000R-V2.0, MP2500R-V2.0, MP3100HV-V2.0 */
case USB_ID(0x2ab6, 0x0005): /* T+A USB HD Audio 1 */
case USB_ID(0x2ab6, 0x0006): /* T+A USB HD Audio 2 */
if (fp->altsetting == 2) {
switch (le16_to_cpu(chip->dev->descriptor.bcdDevice)) {
case 0x199:
return SNDRV_PCM_FMTBIT_DSD_U32_LE;
case 0x19b:
case 0x203:
return SNDRV_PCM_FMTBIT_DSD_U32_BE;
default:
break;
}
}
break;
case USB_ID(0x16d0, 0x0a23):
if (fp->altsetting == 2)
return SNDRV_PCM_FMTBIT_DSD_U32_BE;
break;
default:
break;
}
/* ITF-USB DSD based DACs */
if (is_itf_usb_dsd_dac(chip->usb_id)) {
iface = usb_ifnum_to_if(chip->dev, fp->iface);
/* Altsetting 2 support native DSD if the num of altsets is
* three (0-2),
* Altsetting 3 support native DSD if the num of altsets is
* four (0-3).
*/
if (fp->altsetting == iface->num_altsetting - 1)
return SNDRV_PCM_FMTBIT_DSD_U32_BE;
}
/* Mostly generic method to detect many DSD-capable implementations -
* from XMOS/Thesycon
*/
switch (USB_ID_VENDOR(chip->usb_id)) {
case 0x20b1: /* XMOS based devices */
case 0x152a: /* Thesycon devices */
case 0x25ce: /* Mytek devices */
if (fp->dsd_raw)
return SNDRV_PCM_FMTBIT_DSD_U32_BE;
break;
default:
break;
}
return 0;
}
void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
struct audioformat *fp,
int stream)
{
switch (chip->usb_id) {
case USB_ID(0x0a92, 0x0053): /* AudioTrak Optoplay */
/* Optoplay sets the sample rate attribute although
* it seems not supporting it in fact.
*/
fp->attributes &= ~UAC_EP_CS_ATTR_SAMPLE_RATE;
break;
case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */
case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
/* doesn't set the sample rate attribute, but supports it */
fp->attributes |= UAC_EP_CS_ATTR_SAMPLE_RATE;
break;
case USB_ID(0x0763, 0x2001): /* M-Audio Quattro USB */
case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */
case USB_ID(0x047f, 0x0ca1): /* plantronics headset */
case USB_ID(0x077d, 0x07af): /* Griffin iMic (note that there is
an older model 77d:223) */
/*
* plantronics headset and Griffin iMic have set adaptive-in
* although it's really not...
*/
fp->ep_attr &= ~USB_ENDPOINT_SYNCTYPE;
if (stream == SNDRV_PCM_STREAM_PLAYBACK)
fp->ep_attr |= USB_ENDPOINT_SYNC_ADAPTIVE;
else
fp->ep_attr |= USB_ENDPOINT_SYNC_SYNC;
break;
}
}
Purtroppo l' ID del tuo dac (054c) mi sembra che non ci sia.... e i valori ammessi sono quelli indicati prima per il dsd nativo...