#include "helper.h"
#include "pcm.h"
#include "clock.h"
+#include "power.h"
/*
* return the current pcm pointer. just based on the hwptr_done value.
pt = 125 * (1 << fp->datainterval);
ptmin = min(ptmin, pt);
}
+ err = snd_usb_autoresume(subs->stream->chip);
+ if (err < 0)
+ return err;
param_period_time_if_needed = SNDRV_PCM_HW_PARAM_PERIOD_TIME;
if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL)
SNDRV_PCM_HW_PARAM_CHANNELS,
param_period_time_if_needed,
-1)) < 0)
- return err;
+ goto rep_err;
if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
hw_rule_channels, subs,
SNDRV_PCM_HW_PARAM_FORMAT,
SNDRV_PCM_HW_PARAM_RATE,
param_period_time_if_needed,
-1)) < 0)
- return err;
+ goto rep_err;
if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT,
hw_rule_format, subs,
SNDRV_PCM_HW_PARAM_RATE,
SNDRV_PCM_HW_PARAM_CHANNELS,
param_period_time_if_needed,
-1)) < 0)
- return err;
+ goto rep_err;
if (param_period_time_if_needed >= 0) {
err = snd_pcm_hw_rule_add(runtime, 0,
SNDRV_PCM_HW_PARAM_PERIOD_TIME,
SNDRV_PCM_HW_PARAM_RATE,
-1);
if (err < 0)
- return err;
+ goto rep_err;
}
if ((err = snd_usb_pcm_check_knot(runtime, subs)) < 0)
- return err;
+ goto rep_err;
return 0;
+
+rep_err:
+ snd_usb_autosuspend(subs->stream->chip);
+ return err;
}
static int snd_usb_pcm_open(struct snd_pcm_substream *substream, int direction)
runtime->hw = snd_usb_hardware;
runtime->private_data = subs;
subs->pcm_substream = substream;
+ /* runtime PM is also done there */
return setup_hw_info(runtime, subs);
}
subs->interface = -1;
}
subs->pcm_substream = NULL;
+ snd_usb_autosuspend(subs->stream->chip);
return 0;
}