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ALSA: fireface: support AMDTP domain 

This commit adds AMDTP domain support for ALSA fireface driver.

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 15:21:37 +09:00 committed by Takashi Iwai
parent ccc6c1b0e6
commit c9a9ce899c
2 changed files with 36 additions and 25 deletions
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59
sound/firewire/fireface/ff-stream.c
View File

@ -32,9 +32,6 @@ int snd_ff_stream_get_multiplier_mode(enum cip_sfc sfc,
static inline void finish_session(struct snd_ff *ff)
{
amdtp_stream_stop(&ff->tx_stream);
amdtp_stream_stop(&ff->rx_stream);
ff->spec->protocol->finish_session(ff);
ff->spec->protocol->switch_fetching_mode(ff, false);
}
@ -83,8 +80,16 @@ int snd_ff_stream_init_duplex(struct snd_ff *ff)
return err;
err = init_stream(ff, &ff->tx_stream);
if (err < 0)
if (err < 0) {
destroy_stream(ff, &ff->rx_stream);
return err;
}
err = amdtp_domain_init(&ff->domain);
if (err < 0) {
destroy_stream(ff, &ff->rx_stream);
destroy_stream(ff, &ff->tx_stream);
}
return err;
}
@ -95,6 +100,8 @@ int snd_ff_stream_init_duplex(struct snd_ff *ff)
*/
void snd_ff_stream_destroy_duplex(struct snd_ff *ff)
{
amdtp_domain_destroy(&ff->domain);
destroy_stream(ff, &ff->rx_stream);
destroy_stream(ff, &ff->tx_stream);
}
@ -113,6 +120,7 @@ int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate)
enum snd_ff_stream_mode mode;
int i;
amdtp_domain_stop(&ff->domain);
finish_session(ff);
fw_iso_resources_free(&ff->tx_resources);
@ -155,25 +163,39 @@ int snd_ff_stream_start_duplex(struct snd_ff *ff, unsigned int rate)
return 0;
if (amdtp_streaming_error(&ff->tx_stream) ||
amdtp_streaming_error(&ff->rx_stream))
amdtp_streaming_error(&ff->rx_stream)) {
amdtp_domain_stop(&ff->domain);
finish_session(ff);
}
/*
* Regardless of current source of clock signal, drivers transfer some
* packets. Then, the device transfers packets.
*/
if (!amdtp_stream_running(&ff->rx_stream)) {
int spd = fw_parent_device(ff->unit)->max_speed;
err = ff->spec->protocol->begin_session(ff, rate);
if (err < 0)
goto error;
err = amdtp_stream_start(&ff->rx_stream,
ff->rx_resources.channel,
fw_parent_device(ff->unit)->max_speed);
err = amdtp_domain_add_stream(&ff->domain, &ff->rx_stream,
ff->rx_resources.channel, spd);
if (err < 0)
goto error;
err = amdtp_domain_add_stream(&ff->domain, &ff->tx_stream,
ff->tx_resources.channel, spd);
if (err < 0)
goto error;
err = amdtp_domain_start(&ff->domain);
if (err < 0)
goto error;
if (!amdtp_stream_wait_callback(&ff->rx_stream,
CALLBACK_TIMEOUT_MS) ||
!amdtp_stream_wait_callback(&ff->tx_stream,
CALLBACK_TIMEOUT_MS)) {
err = -ETIMEDOUT;
goto error;
@ -184,22 +206,9 @@ int snd_ff_stream_start_duplex(struct snd_ff *ff, unsigned int rate)
goto error;
}
if (!amdtp_stream_running(&ff->tx_stream)) {
err = amdtp_stream_start(&ff->tx_stream,
ff->tx_resources.channel,
fw_parent_device(ff->unit)->max_speed);
if (err < 0)
goto error;
if (!amdtp_stream_wait_callback(&ff->tx_stream,
CALLBACK_TIMEOUT_MS)) {
err = -ETIMEDOUT;
goto error;
}
}
return 0;
error:
amdtp_domain_stop(&ff->domain);
finish_session(ff);
return err;
@ -208,6 +217,7 @@ error:
void snd_ff_stream_stop_duplex(struct snd_ff *ff)
{
if (ff->substreams_counter == 0) {
amdtp_domain_stop(&ff->domain);
finish_session(ff);
fw_iso_resources_free(&ff->tx_resources);
@ -217,12 +227,11 @@ void snd_ff_stream_stop_duplex(struct snd_ff *ff)
void snd_ff_stream_update_duplex(struct snd_ff *ff)
{
amdtp_domain_stop(&ff->domain);
// The device discontinue to transfer packets.
amdtp_stream_pcm_abort(&ff->tx_stream);
amdtp_stream_stop(&ff->tx_stream);
amdtp_stream_pcm_abort(&ff->rx_stream);
amdtp_stream_stop(&ff->rx_stream);
}
void snd_ff_stream_lock_changed(struct snd_ff *ff)

2
sound/firewire/fireface/ff.h
View File

@ -91,6 +91,8 @@ struct snd_ff {
int dev_lock_count;
bool dev_lock_changed;
wait_queue_head_t hwdep_wait;
struct amdtp_domain domain;
};
enum snd_ff_clock_src {