redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

ALSA: firewire-tascam: support AMDTP domain 

This commit adds AMDTP domain support for ALSA firewire-tascam 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 15:21:35 +09:00 committed by Takashi Iwai
parent 9a08067ec3
commit c281d46a51
2 changed files with 37 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
sound/firewire/tascam/tascam-stream.c
View File

@ -180,9 +180,6 @@ static void finish_session(struct snd_tscm *tscm)
{
__be32 reg;
amdtp_stream_stop(&tscm->rx_stream);
amdtp_stream_stop(&tscm->tx_stream);
reg = 0;
snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
TSCM_ADDR_BASE + TSCM_OFFSET_START_STREAMING,
@ -339,8 +336,16 @@ int snd_tscm_stream_init_duplex(struct snd_tscm *tscm)
return err;
err = init_stream(tscm, &tscm->rx_stream);
if (err < 0)
if (err < 0) {
destroy_stream(tscm, &tscm->tx_stream);
return err;
}
err = amdtp_domain_init(&tscm->domain);
if (err < 0) {
destroy_stream(tscm, &tscm->tx_stream);
destroy_stream(tscm, &tscm->rx_stream);
}
return err;
}
@ -348,17 +353,18 @@ int snd_tscm_stream_init_duplex(struct snd_tscm *tscm)
// At bus reset, streaming is stopped and some registers are clear.
void snd_tscm_stream_update_duplex(struct snd_tscm *tscm)
{
amdtp_stream_pcm_abort(&tscm->tx_stream);
amdtp_stream_stop(&tscm->tx_stream);
amdtp_domain_stop(&tscm->domain);
amdtp_stream_pcm_abort(&tscm->tx_stream);
amdtp_stream_pcm_abort(&tscm->rx_stream);
amdtp_stream_stop(&tscm->rx_stream);
}
// This function should be called before starting streams or after stopping
// streams.
void snd_tscm_stream_destroy_duplex(struct snd_tscm *tscm)
{
amdtp_domain_destroy(&tscm->domain);
destroy_stream(tscm, &tscm->rx_stream);
destroy_stream(tscm, &tscm->tx_stream);
}
@ -373,6 +379,8 @@ int snd_tscm_stream_reserve_duplex(struct snd_tscm *tscm, unsigned int rate)
return err;
if (tscm->substreams_counter == 0 || rate != curr_rate) {
amdtp_domain_stop(&tscm->domain);
finish_session(tscm);
fw_iso_resources_free(&tscm->tx_resources);
@ -405,8 +413,10 @@ int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate)
return 0;
if (amdtp_streaming_error(&tscm->rx_stream) ||
amdtp_streaming_error(&tscm->tx_stream))
amdtp_streaming_error(&tscm->tx_stream)) {
amdtp_domain_stop(&tscm->domain);
finish_session(tscm);
}
if (generation != fw_parent_device(tscm->unit)->card->generation) {
err = fw_iso_resources_update(&tscm->tx_resources);
@ -419,6 +429,8 @@ int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate)
}
if (!amdtp_stream_running(&tscm->rx_stream)) {
int spd = fw_parent_device(tscm->unit)->max_speed;
err = set_stream_formats(tscm, rate);
if (err < 0)
goto error;
@ -427,27 +439,23 @@ int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate)
if (err < 0)
goto error;
err = amdtp_stream_start(&tscm->rx_stream,
tscm->rx_resources.channel,
fw_parent_device(tscm->unit)->max_speed);
err = amdtp_domain_add_stream(&tscm->domain, &tscm->rx_stream,
tscm->rx_resources.channel, spd);
if (err < 0)
goto error;
err = amdtp_domain_add_stream(&tscm->domain, &tscm->tx_stream,
tscm->tx_resources.channel, spd);
if (err < 0)
goto error;
err = amdtp_domain_start(&tscm->domain);
if (err < 0)
return err;
if (!amdtp_stream_wait_callback(&tscm->rx_stream,
CALLBACK_TIMEOUT)) {
err = -ETIMEDOUT;
goto error;
}
}
if (!amdtp_stream_running(&tscm->tx_stream)) {
err = amdtp_stream_start(&tscm->tx_stream,
tscm->tx_resources.channel,
fw_parent_device(tscm->unit)->max_speed);
if (err < 0)
goto error;
if (!amdtp_stream_wait_callback(&tscm->tx_stream,
CALLBACK_TIMEOUT) ||
!amdtp_stream_wait_callback(&tscm->tx_stream,
CALLBACK_TIMEOUT)) {
err = -ETIMEDOUT;
goto error;
@ -456,6 +464,7 @@ int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate)
return 0;
error:
amdtp_domain_stop(&tscm->domain);
finish_session(tscm);
return err;
@ -464,6 +473,7 @@ error:
void snd_tscm_stream_stop_duplex(struct snd_tscm *tscm)
{
if (tscm->substreams_counter == 0) {
amdtp_domain_stop(&tscm->domain);
finish_session(tscm);
fw_iso_resources_free(&tscm->tx_resources);

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

@ -97,6 +97,8 @@ struct snd_tscm {
struct snd_firewire_tascam_change queue[SND_TSCM_QUEUE_COUNT];
unsigned int pull_pos;
unsigned int push_pos;
struct amdtp_domain domain;
};
#define TSCM_ADDR_BASE 0xffff00000000ull