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ALSA: firewire-motu: support AMDTP domain 

This commit adds AMDTP domain support for ALSA firewire-motu 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 15:21:36 +09:00 committed by Takashi Iwai
parent c281d46a51
commit ccc6c1b0e6
2 changed files with 42 additions and 43 deletions
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83
sound/firewire/motu/motu-stream.c
View File

@ -92,9 +92,6 @@ static void finish_session(struct snd_motu *motu)
if (err < 0)
return;
amdtp_stream_stop(&motu->tx_stream);
amdtp_stream_stop(&motu->rx_stream);
err = snd_motu_transaction_read(motu, ISOC_COMM_CONTROL_OFFSET, &reg,
sizeof(reg));
if (err < 0)
@ -109,27 +106,6 @@ static void finish_session(struct snd_motu *motu)
sizeof(reg));
}
static int start_isoc_ctx(struct snd_motu *motu, struct amdtp_stream *stream)
{
struct fw_iso_resources *resources;
int err;
if (stream == &motu->rx_stream)
resources = &motu->rx_resources;
else
resources = &motu->tx_resources;
err = amdtp_stream_start(stream, resources->channel,
fw_parent_device(motu->unit)->max_speed);
if (err < 0)
return err;
if (!amdtp_stream_wait_callback(stream, CALLBACK_TIMEOUT))
return -ETIMEDOUT;
return 0;
}
int snd_motu_stream_cache_packet_formats(struct snd_motu *motu)
{
int err;
@ -169,6 +145,7 @@ int snd_motu_stream_reserve_duplex(struct snd_motu *motu, unsigned int rate)
rate = curr_rate;
if (motu->substreams_counter == 0 || curr_rate != rate) {
amdtp_domain_stop(&motu->domain);
finish_session(motu);
fw_iso_resources_free(&motu->tx_resources);
@ -234,8 +211,10 @@ int snd_motu_stream_start_duplex(struct snd_motu *motu)
return 0;
if (amdtp_streaming_error(&motu->rx_stream) ||
amdtp_streaming_error(&motu->tx_stream))
amdtp_streaming_error(&motu->tx_stream)) {
amdtp_domain_stop(&motu->domain);
finish_session(motu);
}
if (generation != fw_parent_device(motu->unit)->card->generation) {
err = fw_iso_resources_update(&motu->rx_resources);
@ -248,6 +227,8 @@ int snd_motu_stream_start_duplex(struct snd_motu *motu)
}
if (!amdtp_stream_running(&motu->rx_stream)) {
int spd = fw_parent_device(motu->unit)->max_speed;
err = ensure_packet_formats(motu);
if (err < 0)
return err;
@ -259,10 +240,25 @@ int snd_motu_stream_start_duplex(struct snd_motu *motu)
goto stop_streams;
}
err = start_isoc_ctx(motu, &motu->rx_stream);
if (err < 0) {
dev_err(&motu->unit->device,
"fail to start IT context: %d\n", err);
err = amdtp_domain_add_stream(&motu->domain, &motu->tx_stream,
motu->tx_resources.channel, spd);
if (err < 0)
goto stop_streams;
err = amdtp_domain_add_stream(&motu->domain, &motu->rx_stream,
motu->rx_resources.channel, spd);
if (err < 0)
goto stop_streams;
err = amdtp_domain_start(&motu->domain);
if (err < 0)
goto stop_streams;
if (!amdtp_stream_wait_callback(&motu->tx_stream,
CALLBACK_TIMEOUT) ||
!amdtp_stream_wait_callback(&motu->rx_stream,
CALLBACK_TIMEOUT)) {
err = -ETIMEDOUT;
goto stop_streams;
}
@ -274,18 +270,10 @@ int snd_motu_stream_start_duplex(struct snd_motu *motu)
}
}
if (!amdtp_stream_running(&motu->tx_stream)) {
err = start_isoc_ctx(motu, &motu->tx_stream);
if (err < 0) {
dev_err(&motu->unit->device,
"fail to start IR context: %d", err);
goto stop_streams;
}
}
return 0;
stop_streams:
amdtp_domain_stop(&motu->domain);
finish_session(motu);
return err;
}
@ -293,6 +281,7 @@ stop_streams:
void snd_motu_stream_stop_duplex(struct snd_motu *motu)
{
if (motu->substreams_counter == 0) {
amdtp_domain_stop(&motu->domain);
finish_session(motu);
fw_iso_resources_free(&motu->tx_resources);
@ -344,18 +333,26 @@ int snd_motu_stream_init_duplex(struct snd_motu *motu)
return err;
err = init_stream(motu, &motu->rx_stream);
if (err < 0)
if (err < 0) {
destroy_stream(motu, &motu->tx_stream);
return err;
}
err = amdtp_domain_init(&motu->domain);
if (err < 0) {
destroy_stream(motu, &motu->tx_stream);
destroy_stream(motu, &motu->rx_stream);
}
return err;
}
/*
* This function should be called before starting streams or after stopping
* streams.
*/
// This function should be called before starting streams or after stopping
// streams.
void snd_motu_stream_destroy_duplex(struct snd_motu *motu)
{
amdtp_domain_destroy(&motu->domain);
destroy_stream(motu, &motu->rx_stream);
destroy_stream(motu, &motu->tx_stream);

2
sound/firewire/motu/motu.h
View File

@ -69,6 +69,8 @@ struct snd_motu {
int dev_lock_count;
bool dev_lock_changed;
wait_queue_head_t hwdep_wait;
struct amdtp_domain domain;
};
enum snd_motu_spec_flags {