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authorClemens Ladisch <clemens@ladisch.de>2013-04-27 12:10:32 +0200
committerTakashi Iwai <tiwai@suse.de>2013-04-29 10:57:35 +0200
commitc75c5ab575af7db707689cdbb5a5c458e9a034bb (patch)
tree66bf7a427bcb7a46de41f58efdaa3be853b42e6f /sound/usb
parentfa92dd77ec5623cc0546acb77ee61a0a7ea4f0f0 (diff)
ALSA: USB: adjust for changed 3.8 USB API
The recent changes in the USB API ("implement new semantics for URB_ISO_ASAP") made the former meaning of the URB_ISO_ASAP flag the default, and changed this flag to mean that URBs can be delayed. This is not the behaviour wanted by any of the audio drivers because it leads to discontinuous playback with very small period sizes. Therefore, our URBs need to be submitted without this flag. Reported-by: Joe Rayhawk <jrayhawk@fairlystable.org> Cc: <stable@vger.kernel.org> # 3.8 only Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
-rw-r--r--sound/usb/6fire/pcm.c1
-rw-r--r--sound/usb/caiaq/audio.c3
-rw-r--r--sound/usb/endpoint.c5
-rw-r--r--sound/usb/misc/ua101.c3
-rw-r--r--sound/usb/usx2y/usb_stream.c1
-rw-r--r--sound/usb/usx2y/usbusx2yaudio.c1
-rw-r--r--sound/usb/usx2y/usx2yhwdeppcm.c1
7 files changed, 3 insertions, 12 deletions
diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c
index e2ca12fe92e..40dd50a80f5 100644
--- a/sound/usb/6fire/pcm.c
+++ b/sound/usb/6fire/pcm.c
@@ -575,7 +575,6 @@ static void usb6fire_pcm_init_urb(struct pcm_urb *urb,
urb->instance.pipe = in ? usb_rcvisocpipe(chip->dev, ep)
: usb_sndisocpipe(chip->dev, ep);
urb->instance.interval = 1;
- urb->instance.transfer_flags = URB_ISO_ASAP;
urb->instance.complete = handler;
urb->instance.context = urb;
urb->instance.number_of_packets = PCM_N_PACKETS_PER_URB;
diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c
index 67330af21b0..c1916184e2e 100644
--- a/sound/usb/caiaq/audio.c
+++ b/sound/usb/caiaq/audio.c
@@ -683,7 +683,6 @@ static void read_completed(struct urb *urb)
if (send_it) {
out->number_of_packets = outframe;
- out->transfer_flags = URB_ISO_ASAP;
usb_submit_urb(out, GFP_ATOMIC);
} else {
struct snd_usb_caiaq_cb_info *oinfo = out->context;
@@ -699,7 +698,6 @@ requeue:
}
urb->number_of_packets = FRAMES_PER_URB;
- urb->transfer_flags = URB_ISO_ASAP;
usb_submit_urb(urb, GFP_ATOMIC);
}
@@ -765,7 +763,6 @@ static struct urb **alloc_urbs(struct snd_usb_caiaqdev *cdev, int dir, int *ret)
* BYTES_PER_FRAME;
urbs[i]->context = &cdev->data_cb_info[i];
urbs[i]->interval = 1;
- urbs[i]->transfer_flags = URB_ISO_ASAP;
urbs[i]->number_of_packets = FRAMES_PER_URB;
urbs[i]->complete = (dir == SNDRV_PCM_STREAM_CAPTURE) ?
read_completed : write_completed;
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 32d0b41a1ff..7a444b5501d 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -684,7 +684,7 @@ static int data_ep_set_params(struct snd_usb_endpoint *ep,
if (!u->urb->transfer_buffer)
goto out_of_memory;
u->urb->pipe = ep->pipe;
- u->urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
+ u->urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
u->urb->interval = 1 << ep->datainterval;
u->urb->context = u;
u->urb->complete = snd_complete_urb;
@@ -723,8 +723,7 @@ static int sync_ep_set_params(struct snd_usb_endpoint *ep,
u->urb->transfer_dma = ep->sync_dma + i * 4;
u->urb->transfer_buffer_length = 4;
u->urb->pipe = ep->pipe;
- u->urb->transfer_flags = URB_ISO_ASAP |
- URB_NO_TRANSFER_DMA_MAP;
+ u->urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
u->urb->number_of_packets = 1;
u->urb->interval = 1 << ep->syncinterval;
u->urb->context = u;
diff --git a/sound/usb/misc/ua101.c b/sound/usb/misc/ua101.c
index 8b81cb54026..6ad617b9473 100644
--- a/sound/usb/misc/ua101.c
+++ b/sound/usb/misc/ua101.c
@@ -1120,8 +1120,7 @@ static int alloc_stream_urbs(struct ua101 *ua, struct ua101_stream *stream,
usb_init_urb(&urb->urb);
urb->urb.dev = ua->dev;
urb->urb.pipe = stream->usb_pipe;
- urb->urb.transfer_flags = URB_ISO_ASAP |
- URB_NO_TRANSFER_DMA_MAP;
+ urb->urb.transfer_flags = URB_NO_TRANSFER_DMA_MAP;
urb->urb.transfer_buffer = addr;
urb->urb.transfer_dma = dma;
urb->urb.transfer_buffer_length = max_packet_size;
diff --git a/sound/usb/usx2y/usb_stream.c b/sound/usb/usx2y/usb_stream.c
index 1e7a47a8660..bf618e1500a 100644
--- a/sound/usb/usx2y/usb_stream.c
+++ b/sound/usb/usx2y/usb_stream.c
@@ -69,7 +69,6 @@ static void init_pipe_urbs(struct usb_stream_kernel *sk, unsigned use_packsize,
++u, transfer += transfer_length) {
struct urb *urb = urbs[u];
struct usb_iso_packet_descriptor *desc;
- urb->transfer_flags = URB_ISO_ASAP;
urb->transfer_buffer = transfer;
urb->dev = dev;
urb->pipe = pipe;
diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c
index 520ef96d7c7..b37653247ef 100644
--- a/sound/usb/usx2y/usbusx2yaudio.c
+++ b/sound/usb/usx2y/usbusx2yaudio.c
@@ -503,7 +503,6 @@ static int usX2Y_urbs_start(struct snd_usX2Y_substream *subs)
if (0 == i)
atomic_set(&subs->state, state_STARTING3);
urb->dev = usX2Y->dev;
- urb->transfer_flags = URB_ISO_ASAP;
for (pack = 0; pack < nr_of_packs(); pack++) {
urb->iso_frame_desc[pack].offset = subs->maxpacksize * pack;
urb->iso_frame_desc[pack].length = subs->maxpacksize;
diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c
index cc56007791e..f2a1acdc4d8 100644
--- a/sound/usb/usx2y/usx2yhwdeppcm.c
+++ b/sound/usb/usx2y/usx2yhwdeppcm.c
@@ -443,7 +443,6 @@ static int usX2Y_usbpcm_urbs_start(struct snd_usX2Y_substream *subs)
if (0 == u)
atomic_set(&subs->state, state_STARTING3);
urb->dev = usX2Y->dev;
- urb->transfer_flags = URB_ISO_ASAP;
for (pack = 0; pack < nr_of_packs(); pack++) {
urb->iso_frame_desc[pack].offset = subs->maxpacksize * (pack + u * nr_of_packs());
urb->iso_frame_desc[pack].length = subs->maxpacksize;