diff options
| author | Alberto Aguirre <albaguirre@gmail.com> | 2018-04-18 09:35:34 -0500 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-04-19 11:49:22 +0200 |
| commit | 103e9625647ad74d201e26fb74afcd8479142a37 (patch) | |
| tree | 8b652c5278ef5ca83590c5d4c01f40f846eb66bd /sound/usb/pcm.c | |
| parent | c99c5a3bb575f67700f9d1b216652750ea4a31a5 (diff) | |
| download | linux-103e9625647ad74d201e26fb74afcd8479142a37.tar.bz2 | |
ALSA: usb-audio: simplify set_sync_ep_implicit_fb_quirk
Signed-off-by: Alberto Aguirre <albaguirre@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/pcm.c')
| -rw-r--r-- | sound/usb/pcm.c | 52 |
1 files changed, 20 insertions, 32 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 3cbfae6604f9..c0746cc20ac4 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -321,6 +321,7 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs, struct usb_host_interface *alts; struct usb_interface *iface; unsigned int ep; + unsigned int ifnum; /* Implicit feedback sync EPs consumers are always playback EPs */ if (subs->direction != SNDRV_PCM_STREAM_PLAYBACK) @@ -330,44 +331,23 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs, case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ ep = 0x81; - iface = usb_ifnum_to_if(dev, 3); - - if (!iface || iface->num_altsetting == 0) - return -EINVAL; - - alts = &iface->altsetting[1]; - goto add_sync_ep; - break; + ifnum = 3; + goto add_sync_ep_from_ifnum; case USB_ID(0x0763, 0x2080): /* M-Audio FastTrack Ultra */ case USB_ID(0x0763, 0x2081): ep = 0x81; - iface = usb_ifnum_to_if(dev, 2); - - if (!iface || iface->num_altsetting == 0) - return -EINVAL; - - alts = &iface->altsetting[1]; - goto add_sync_ep; - case USB_ID(0x2466, 0x8003): + ifnum = 2; + goto add_sync_ep_from_ifnum; + case USB_ID(0x2466, 0x8003): /* Fractal Audio Axe-Fx II */ ep = 0x86; - iface = usb_ifnum_to_if(dev, 2); - - if (!iface || iface->num_altsetting == 0) - return -EINVAL; - - alts = &iface->altsetting[1]; - goto add_sync_ep; - case USB_ID(0x1397, 0x0002): + ifnum = 2; + goto add_sync_ep_from_ifnum; + case USB_ID(0x1397, 0x0002): /* Behringer UFX1204 */ ep = 0x81; - iface = usb_ifnum_to_if(dev, 1); - - if (!iface || iface->num_altsetting == 0) - return -EINVAL; - - alts = &iface->altsetting[1]; - goto add_sync_ep; - + ifnum = 1; + goto add_sync_ep_from_ifnum; } + if (attr == USB_ENDPOINT_SYNC_ASYNC && altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC && altsd->bInterfaceProtocol == 2 && @@ -382,6 +362,14 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs, /* No quirk */ return 0; +add_sync_ep_from_ifnum: + iface = usb_ifnum_to_if(dev, ifnum); + + if (!iface || iface->num_altsetting == 0) + return -EINVAL; + + alts = &iface->altsetting[1]; + add_sync_ep: subs->sync_endpoint = snd_usb_add_endpoint(subs->stream->chip, alts, ep, !subs->direction, |