return false;
}
+/* TEAC UD-501/UD-503/NT-503 USB DACs need a vendor cmd to switch
+ * between PCM/DOP and native DSD mode
+ */
+static bool is_teac_50X_dac(unsigned int id)
+{
+ switch (id) {
+ case USB_ID(0x0644, 0x8043): /* TEAC UD-501/UD-503/NT-503 */
+ return true;
+ }
+ return false;
+}
+
int snd_usb_select_mode_quirk(struct snd_usb_substream *subs,
struct audioformat *fmt)
{
break;
}
mdelay(20);
+ } else if (is_teac_50X_dac(subs->stream->chip->usb_id)) {
+ /* Vendor mode switch cmd is required. */
+ switch (fmt->altsetting) {
+ case 3: /* DSD mode (DSD_U32) requested */
+ err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
+ USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
+ 1, 1, NULL, 0);
+ if (err < 0)
+ return err;
+ break;
+
+ case 2: /* PCM or DOP mode (S32) requested */
+ case 1: /* PCM mode (S16) requested */
+ err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
+ USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
+ 0, 1, NULL, 0);
+ if (err < 0)
+ return err;
+ break;
+ }
}
return 0;
}
ep->chip->usb_id == USB_ID(0x0763, 0x2031)) &&
ep->type == SND_USB_ENDPOINT_TYPE_DATA)
ep->skip_packets = 16;
+
+ /* Work around devices that report unreasonable feedback data */
+ if ((ep->chip->usb_id == USB_ID(0x0644, 0x8038) || /* TEAC UD-H01 */
+ ep->chip->usb_id == USB_ID(0x1852, 0x5034)) && /* T+A Dac8 */
+ ep->syncmaxsize == 4)
+ ep->tenor_fb_quirk = 1;
}
void snd_usb_set_interface_quirk(struct usb_device *dev)
return SNDRV_PCM_FMTBIT_DSD_U32_BE;
}
+ /* TEAC devices with USB DAC functionality */
+ if (is_teac_50X_dac(chip->usb_id)) {
+ if (fp->altsetting == 3)
+ return SNDRV_PCM_FMTBIT_DSD_U32_BE;
+ }
+
return 0;
}