ALSA: usb-audio: Check Marantz/Denon USB DACs in a single place
There are three places doing the same check. Let's make them
together.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 753a47d..353532b 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1120,17 +1120,24 @@
/* Marantz/Denon USB DACs need a vendor cmd to switch
* between PCM and native DSD mode
*/
+static bool is_marantz_denon_dac(unsigned int id)
+{
+ switch (id) {
+ case USB_ID(0x154e, 0x1003): /* Denon DA-300USB */
+ case USB_ID(0x154e, 0x3005): /* Marantz HD-DAC1 */
+ case USB_ID(0x154e, 0x3006): /* Marantz SA-14S1 */
+ return true;
+ }
+ return false;
+}
+
int snd_usb_select_mode_quirk(struct snd_usb_substream *subs,
struct audioformat *fmt)
{
struct usb_device *dev = subs->dev;
int err;
- switch (subs->stream->chip->usb_id) {
- case USB_ID(0x154e, 0x1003): /* Denon DA-300USB */
- case USB_ID(0x154e, 0x3005): /* Marantz HD-DAC1 */
- case USB_ID(0x154e, 0x3006): /* Marantz SA-14S1 */
-
+ if (is_marantz_denon_dac(subs->stream->chip->usb_id)) {
/* First switch to alt set 0, otherwise the mode switch cmd
* will not be accepted by the DAC
*/
@@ -1203,17 +1210,10 @@
/* Marantz/Denon devices with USB DAC functionality need a delay
* after each class compliant request
*/
- if ((le16_to_cpu(dev->descriptor.idVendor) == 0x154e) &&
- (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) {
-
- switch (le16_to_cpu(dev->descriptor.idProduct)) {
- case 0x1003: /* Denon DA300-USB */
- case 0x3005: /* Marantz HD-DAC1 */
- case 0x3006: /* Marantz SA-14S1 */
- mdelay(20);
- break;
- }
- }
+ if (is_marantz_denon_dac(USB_ID(le16_to_cpu(dev->descriptor.idVendor),
+ le16_to_cpu(dev->descriptor.idProduct)))
+ && (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
+ mdelay(20);
/* Zoom R16/24 needs a tiny delay here, otherwise requests like
* get/set frequency return as failed despite actually succeeding.
@@ -1268,15 +1268,9 @@
}
/* Denon/Marantz devices with USB DAC functionality */
- switch (chip->usb_id) {
- case USB_ID(0x154e, 0x1003): /* Denon DA300-USB */
- case USB_ID(0x154e, 0x3005): /* Marantz HD-DAC1 */
- case USB_ID(0x154e, 0x3006): /* Marantz SA-14S1 */
+ if (is_marantz_denon_dac(chip->usb_id)) {
if (fp->altsetting == 2)
return SNDRV_PCM_FMTBIT_DSD_U32_BE;
- break;
- default:
- break;
}
return 0;