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Diffstat (limited to 'sound/usb/pcm.c')
-rw-r--r--sound/usb/pcm.c71
1 files changed, 66 insertions, 5 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 160f52c4871b..382847154227 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -711,6 +711,54 @@ static int configure_endpoint(struct snd_usb_substream *subs)
return ret;
}
+static int snd_usb_pcm_change_state(struct snd_usb_substream *subs, int state)
+{
+ int ret;
+
+ if (!subs->str_pd)
+ return 0;
+
+ ret = snd_usb_power_domain_set(subs->stream->chip, subs->str_pd, state);
+ if (ret < 0) {
+ dev_err(&subs->dev->dev,
+ "Cannot change Power Domain ID: %d to state: %d. Err: %d\n",
+ subs->str_pd->pd_id, state, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+int snd_usb_pcm_suspend(struct snd_usb_stream *as)
+{
+ int ret;
+
+ ret = snd_usb_pcm_change_state(&as->substream[0], UAC3_PD_STATE_D2);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_usb_pcm_change_state(&as->substream[1], UAC3_PD_STATE_D2);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+int snd_usb_pcm_resume(struct snd_usb_stream *as)
+{
+ int ret;
+
+ ret = snd_usb_pcm_change_state(&as->substream[0], UAC3_PD_STATE_D1);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_usb_pcm_change_state(&as->substream[1], UAC3_PD_STATE_D1);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
/*
* hw_params callback
*
@@ -755,16 +803,22 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream,
ret = snd_usb_lock_shutdown(subs->stream->chip);
if (ret < 0)
return ret;
+
+ ret = snd_usb_pcm_change_state(subs, UAC3_PD_STATE_D0);
+ if (ret < 0)
+ goto unlock;
+
ret = set_format(subs, fmt);
- snd_usb_unlock_shutdown(subs->stream->chip);
if (ret < 0)
- return ret;
+ goto unlock;
subs->interface = fmt->iface;
subs->altset_idx = fmt->altset_idx;
subs->need_setup_ep = true;
- return 0;
+ unlock:
+ snd_usb_unlock_shutdown(subs->stream->chip);
+ return ret;
}
/*
@@ -821,6 +875,10 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
snd_usb_endpoint_sync_pending_stop(subs->sync_endpoint);
snd_usb_endpoint_sync_pending_stop(subs->data_endpoint);
+ ret = snd_usb_pcm_change_state(subs, UAC3_PD_STATE_D0);
+ if (ret < 0)
+ goto unlock;
+
ret = set_format(subs, subs->cur_audiofmt);
if (ret < 0)
goto unlock;
@@ -1265,6 +1323,7 @@ static int snd_usb_pcm_close(struct snd_pcm_substream *substream)
int direction = substream->stream;
struct snd_usb_stream *as = snd_pcm_substream_chip(substream);
struct snd_usb_substream *subs = &as->substream[direction];
+ int ret;
stop_endpoints(subs, true);
@@ -1273,7 +1332,10 @@ static int snd_usb_pcm_close(struct snd_pcm_substream *substream)
!snd_usb_lock_shutdown(subs->stream->chip)) {
usb_set_interface(subs->dev, subs->interface, 0);
subs->interface = -1;
+ ret = snd_usb_pcm_change_state(subs, UAC3_PD_STATE_D1);
snd_usb_unlock_shutdown(subs->stream->chip);
+ if (ret < 0)
+ return ret;
}
subs->pcm_substream = NULL;
@@ -1632,6 +1694,7 @@ static int snd_usb_substream_playback_trigger(struct snd_pcm_substream *substrea
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
subs->trigger_tstamp_pending_update = true;
+ /* fall through */
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
subs->data_endpoint->prepare_data_urb = prepare_playback_urb;
subs->data_endpoint->retire_data_urb = retire_playback_urb;
@@ -1694,7 +1757,6 @@ static const struct snd_pcm_ops snd_usb_playback_ops = {
.trigger = snd_usb_substream_playback_trigger,
.pointer = snd_usb_pcm_pointer,
.page = snd_pcm_lib_get_vmalloc_page,
- .mmap = snd_pcm_lib_mmap_vmalloc,
};
static const struct snd_pcm_ops snd_usb_capture_ops = {
@@ -1707,7 +1769,6 @@ static const struct snd_pcm_ops snd_usb_capture_ops = {
.trigger = snd_usb_substream_capture_trigger,
.pointer = snd_usb_pcm_pointer,
.page = snd_pcm_lib_get_vmalloc_page,
- .mmap = snd_pcm_lib_mmap_vmalloc,
};
static const struct snd_pcm_ops snd_usb_playback_dev_ops = {