summaryrefslogtreecommitdiffstats
path: root/sound/usb/endpoint.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/usb/endpoint.c')
-rw-r--r--sound/usb/endpoint.c39
1 files changed, 26 insertions, 13 deletions
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 060dccb9ec7..7f78c6d782b 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -31,6 +31,7 @@
#include "card.h"
#include "endpoint.h"
#include "pcm.h"
+#include "quirks.h"
#define EP_FLAG_ACTIVATED 0
#define EP_FLAG_RUNNING 1
@@ -170,6 +171,11 @@ static void retire_inbound_urb(struct snd_usb_endpoint *ep,
{
struct urb *urb = urb_ctx->urb;
+ if (unlikely(ep->skip_packets > 0)) {
+ ep->skip_packets--;
+ return;
+ }
+
if (ep->sync_slave)
snd_usb_handle_sync_urb(ep->sync_slave, ep, urb);
@@ -567,20 +573,19 @@ static void release_urbs(struct snd_usb_endpoint *ep, int force)
* configure a data endpoint
*/
static int data_ep_set_params(struct snd_usb_endpoint *ep,
- struct snd_pcm_hw_params *hw_params,
+ snd_pcm_format_t pcm_format,
+ unsigned int channels,
+ unsigned int period_bytes,
struct audioformat *fmt,
struct snd_usb_endpoint *sync_ep)
{
unsigned int maxsize, i, urb_packs, total_packs, packs_per_ms;
- int period_bytes = params_period_bytes(hw_params);
- int format = params_format(hw_params);
int is_playback = usb_pipeout(ep->pipe);
- int frame_bits = snd_pcm_format_physical_width(params_format(hw_params)) *
- params_channels(hw_params);
+ int frame_bits = snd_pcm_format_physical_width(pcm_format) * channels;
ep->datainterval = fmt->datainterval;
ep->stride = frame_bits >> 3;
- ep->silence_value = format == SNDRV_PCM_FORMAT_U8 ? 0x80 : 0;
+ ep->silence_value = pcm_format == SNDRV_PCM_FORMAT_U8 ? 0x80 : 0;
/* calculate max. frequency */
if (ep->maxpacksize) {
@@ -693,7 +698,6 @@ out_of_memory:
* configure a sync endpoint
*/
static int sync_ep_set_params(struct snd_usb_endpoint *ep,
- struct snd_pcm_hw_params *hw_params,
struct audioformat *fmt)
{
int i;
@@ -736,7 +740,10 @@ out_of_memory:
* snd_usb_endpoint_set_params: configure an snd_usb_endpoint
*
* @ep: the snd_usb_endpoint to configure
- * @hw_params: the hardware parameters
+ * @pcm_format: the audio fomat.
+ * @channels: the number of audio channels.
+ * @period_bytes: the number of bytes in one alsa period.
+ * @rate: the frame rate.
* @fmt: the USB audio format information
* @sync_ep: the sync endpoint to use, if any
*
@@ -745,7 +752,10 @@ out_of_memory:
* An endpoint that is already running can not be reconfigured.
*/
int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
- struct snd_pcm_hw_params *hw_params,
+ snd_pcm_format_t pcm_format,
+ unsigned int channels,
+ unsigned int period_bytes,
+ unsigned int rate,
struct audioformat *fmt,
struct snd_usb_endpoint *sync_ep)
{
@@ -765,9 +775,9 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
ep->fill_max = !!(fmt->attributes & UAC_EP_CS_ATTR_FILL_MAX);
if (snd_usb_get_speed(ep->chip->dev) == USB_SPEED_FULL)
- ep->freqn = get_usb_full_speed_rate(params_rate(hw_params));
+ ep->freqn = get_usb_full_speed_rate(rate);
else
- ep->freqn = get_usb_high_speed_rate(params_rate(hw_params));
+ ep->freqn = get_usb_high_speed_rate(rate);
/* calculate the frequency in 16.16 format */
ep->freqm = ep->freqn;
@@ -777,10 +787,11 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
switch (ep->type) {
case SND_USB_ENDPOINT_TYPE_DATA:
- err = data_ep_set_params(ep, hw_params, fmt, sync_ep);
+ err = data_ep_set_params(ep, pcm_format, channels,
+ period_bytes, fmt, sync_ep);
break;
case SND_USB_ENDPOINT_TYPE_SYNC:
- err = sync_ep_set_params(ep, hw_params, fmt);
+ err = sync_ep_set_params(ep, fmt);
break;
default:
err = -EINVAL;
@@ -828,6 +839,8 @@ int snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep)
ep->unlink_mask = 0;
ep->phase = 0;
+ snd_usb_endpoint_start_quirk(ep);
+
/*
* If this endpoint has a data endpoint as implicit feedback source,
* don't start the urbs here. Instead, mark them all as available,