ALSA: usb-audio: remove implicit_fb from quirk
Since the quirks all apply to implicit feedback (the source endpoint is always a data endpoint), there's no need to set and check a flag for it. Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -334,7 +334,6 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
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{
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struct usb_host_interface *alts;
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struct usb_interface *iface;
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int implicit_fb = 0;
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unsigned int ep;
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/* Implicit feedback sync EPs consumers are always playback EPs */
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@ -344,7 +343,6 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
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switch (subs->stream->chip->usb_id) {
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case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */
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case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */
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implicit_fb = 1;
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ep = 0x81;
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iface = usb_ifnum_to_if(dev, 3);
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@ -356,7 +354,6 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
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break;
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case USB_ID(0x0763, 0x2080): /* M-Audio FastTrack Ultra */
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case USB_ID(0x0763, 0x2081):
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implicit_fb = 1;
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ep = 0x81;
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iface = usb_ifnum_to_if(dev, 2);
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@ -374,7 +371,6 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
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search_roland_implicit_fb(dev, altsd->bInterfaceNumber + 1,
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altsd->bAlternateSetting,
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&alts, &ep) >= 0) {
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implicit_fb = 1;
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goto add_sync_ep;
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}
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@ -384,9 +380,7 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
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add_sync_ep:
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subs->sync_endpoint = snd_usb_add_endpoint(subs->stream->chip,
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alts, ep, !subs->direction,
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implicit_fb ?
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SND_USB_ENDPOINT_TYPE_DATA :
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SND_USB_ENDPOINT_TYPE_SYNC);
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SND_USB_ENDPOINT_TYPE_DATA);
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if (!subs->sync_endpoint)
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return -EINVAL;
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