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ALSA: firewire-lib: localize kernel APIs to start/stop each AMDTP stream 

As a result to support AMDTP domain, no drivers call kernel APIs to
start/stop each AMDTP stream. This commit localize these APIs.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
alistair/sunxi64-5.4-dsi
Takashi Sakamoto 2019-08-04 15:21:38 +09:00 committed by Takashi Iwai
parent c9a9ce899c
commit 74f94e4182
2 changed files with 2 additions and 6 deletions
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6
sound/firewire/amdtp-stream.c
View File

@ -894,7 +894,7 @@ static void amdtp_stream_first_callback(struct fw_iso_context *context,
* amdtp_stream_set_parameters() and it must be started before any PCM or MIDI
* device can be started.
*/
int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
static int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
{
static const struct {
unsigned int data_block;
@ -1027,7 +1027,6 @@ err_unlock:
return err;
}
EXPORT_SYMBOL(amdtp_stream_start);
/**
* amdtp_stream_pcm_pointer - get the PCM buffer position
@ -1098,7 +1097,7 @@ EXPORT_SYMBOL(amdtp_stream_update);
* All PCM and MIDI devices of the stream must be stopped before the stream
* itself can be stopped.
*/
void amdtp_stream_stop(struct amdtp_stream *s)
static void amdtp_stream_stop(struct amdtp_stream *s)
{
mutex_lock(&s->mutex);
@ -1118,7 +1117,6 @@ void amdtp_stream_stop(struct amdtp_stream *s)
mutex_unlock(&s->mutex);
}
EXPORT_SYMBOL(amdtp_stream_stop);
/**
* amdtp_stream_pcm_abort - abort the running PCM device

2
sound/firewire/amdtp-stream.h
View File

@ -188,9 +188,7 @@ int amdtp_stream_set_parameters(struct amdtp_stream *s, unsigned int rate,
unsigned int data_block_quadlets);
unsigned int amdtp_stream_get_max_payload(struct amdtp_stream *s);
int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed);
void amdtp_stream_update(struct amdtp_stream *s);
void amdtp_stream_stop(struct amdtp_stream *s);
int amdtp_stream_add_pcm_hw_constraints(struct amdtp_stream *s,
struct snd_pcm_runtime *runtime);