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ANDROID: sound: usb: Export symbols for endpoint management

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Export the following symbols which are needed to support
USB audio offload to a co-processor.

snd_usb_autoresume
snd_usb_autosuspend
snd_usb_endpoint_open
snd_usb_endpoint_close
snd_usb_endpoint_configure

Bug: 224904393
Change-Id: I8feaa225c7b869592b395815b3a7be47813c7aac
Signed-off-by: Jack Pham <quic_jackp@quicinc.com>
This commit is contained in:
Jack Pham
2022-04-05 11:16:16 -07:00
parent 982c7ee3e3
commit 4dad64ab32
2 changed files with 5 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
sound/usb/card.c
View File

@@ -1018,6 +1018,7 @@ int snd_usb_autoresume(struct snd_usb_audio *chip)
}
return 0;
}
EXPORT_SYMBOL_GPL(snd_usb_autoresume);
void snd_usb_autosuspend(struct snd_usb_audio *chip)
{
@@ -1031,6 +1032,7 @@ void snd_usb_autosuspend(struct snd_usb_audio *chip)
for (i = 0; i < chip->num_interfaces; i++)
usb_autopm_put_interface(chip->intf[i]);
}
EXPORT_SYMBOL_GPL(snd_usb_autosuspend);
static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
{

3
sound/usb/endpoint.c
View File

@@ -819,6 +819,7 @@ snd_usb_endpoint_open(struct snd_usb_audio *chip,
mutex_unlock(&chip->mutex);
return ep;
}
EXPORT_SYMBOL_GPL(snd_usb_endpoint_open);
/*
* snd_usb_endpoint_set_sync: Link data and sync endpoints
@@ -902,6 +903,7 @@ void snd_usb_endpoint_close(struct snd_usb_audio *chip,
}
mutex_unlock(&chip->mutex);
}
EXPORT_SYMBOL_GPL(snd_usb_endpoint_close);
/* Prepare for suspening EP, called from the main suspend handler */
void snd_usb_endpoint_suspend(struct snd_usb_endpoint *ep)
@@ -1405,6 +1407,7 @@ unlock:
mutex_unlock(&chip->mutex);
return err;
}
EXPORT_SYMBOL_GPL(snd_usb_endpoint_configure);
/* get the current rate set to the given clock by any endpoint */
int snd_usb_endpoint_get_clock_rate(struct snd_usb_audio *chip, int clock)