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| author | Torstein Hegge <hegge@resisty.net> | 2013-05-16 20:26:17 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-05-17 08:05:34 +0200 |
| commit | e6135fe960bba1d1a3a6b6818839e6d8d3f21293 (patch) | |
| tree | 332122e4ca8fb42f59db1cd44c869d920578649d /sound/usb | |
| parent | 436c4a0cfbc4c7a95c4ea37dbd9f697d5dfd553f (diff) | |
| download | linux-e6135fe960bba1d1a3a6b6818839e6d8d3f21293.tar.bz2 | |
ALSA: usb-audio: proc: use found syncmaxsize to determine feedback format
freqshift is only set for the data endpoint and syncmaxsize is only set
for the sync endpoint. This results in a syncmaxsize of zero used in the
proc output feedback format calculation, which gives a feedback format
incorrectly shown as 8.16 for UAC2 devices.
As neither the data nor the sync endpoint gives all the relevant
content, output the two combined.
Also remove the sync_endpoint "packet size" which is always zero
and the sync_endpoint "momentary freq" which is constant.
Tested with UAC2 async and UAC1 adaptive, not tested with UAC1 async.
Reported-by: B. Zhang <bb.zhang@free.fr>
Signed-off-by: Torstein Hegge <hegge@resisty.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/proc.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/sound/usb/proc.c b/sound/usb/proc.c index 135c76871063..5f761ab34c01 100644 --- a/sound/usb/proc.c +++ b/sound/usb/proc.c @@ -116,21 +116,22 @@ static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct s } static void proc_dump_ep_status(struct snd_usb_substream *subs, - struct snd_usb_endpoint *ep, + struct snd_usb_endpoint *data_ep, + struct snd_usb_endpoint *sync_ep, struct snd_info_buffer *buffer) { - if (!ep) + if (!data_ep) return; - snd_iprintf(buffer, " Packet Size = %d\n", ep->curpacksize); + snd_iprintf(buffer, " Packet Size = %d\n", data_ep->curpacksize); snd_iprintf(buffer, " Momentary freq = %u Hz (%#x.%04x)\n", subs->speed == USB_SPEED_FULL - ? get_full_speed_hz(ep->freqm) - : get_high_speed_hz(ep->freqm), - ep->freqm >> 16, ep->freqm & 0xffff); - if (ep->freqshift != INT_MIN) { - int res = 16 - ep->freqshift; + ? get_full_speed_hz(data_ep->freqm) + : get_high_speed_hz(data_ep->freqm), + data_ep->freqm >> 16, data_ep->freqm & 0xffff); + if (sync_ep && data_ep->freqshift != INT_MIN) { + int res = 16 - data_ep->freqshift; snd_iprintf(buffer, " Feedback Format = %d.%d\n", - (ep->syncmaxsize > 3 ? 32 : 24) - res, res); + (sync_ep->syncmaxsize > 3 ? 32 : 24) - res, res); } } @@ -140,8 +141,7 @@ static void proc_dump_substream_status(struct snd_usb_substream *subs, struct sn snd_iprintf(buffer, " Status: Running\n"); snd_iprintf(buffer, " Interface = %d\n", subs->interface); snd_iprintf(buffer, " Altset = %d\n", subs->altset_idx); - proc_dump_ep_status(subs, subs->data_endpoint, buffer); - proc_dump_ep_status(subs, subs->sync_endpoint, buffer); + proc_dump_ep_status(subs, subs->data_endpoint, subs->sync_endpoint, buffer); } else { snd_iprintf(buffer, " Status: Stop\n"); } |