mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-05 02:19:51 +00:00
Code Issues Releases Wiki Activity

ALSA: fireworks: code refactoring for initialization/destruction of AMDTP streams

Browse source 
This commit is a preparation to support AMDTP domain.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2019-08-04 15:21:24 +09:00 committed by Takashi Iwai
parent 9b4702b06c
commit 94491c175d
1 changed files with 36 additions and 41 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

77
sound/firewire/fireworks/fireworks_stream.c
View file

@ -8,8 +8,7 @@
#define CALLBACK_TIMEOUT 100
static int
init_stream(struct snd_efw *efw, struct amdtp_stream *stream)
static int init_stream(struct snd_efw *efw, struct amdtp_stream *stream)
{
struct cmp_connection *conn;
enum cmp_direction c_dir;
@ -28,14 +27,37 @@ init_stream(struct snd_efw *efw, struct amdtp_stream *stream)
err = cmp_connection_init(conn, efw->unit, c_dir, 0);
if (err < 0)
goto end;
return err;
err = amdtp_am824_init(stream, efw->unit, s_dir, CIP_BLOCKING);
if (err < 0) {
amdtp_stream_destroy(stream);
cmp_connection_destroy(conn);
return err;
}
end:
if (stream == &efw->tx_stream) {
// Fireworks transmits NODATA packets with TAG0.
efw->tx_stream.flags |= CIP_EMPTY_WITH_TAG0;
// Fireworks has its own meaning for dbc.
efw->tx_stream.flags |= CIP_DBC_IS_END_EVENT;
// Fireworks reset dbc at bus reset.
efw->tx_stream.flags |= CIP_SKIP_DBC_ZERO_CHECK;
// But Recent firmwares starts packets with non-zero dbc.
// Driver version 5.7.6 installs firmware version 5.7.3.
if (efw->is_fireworks3 &&
(efw->firmware_version == 0x5070000 ||
efw->firmware_version == 0x5070300 ||
efw->firmware_version == 0x5080000))
efw->tx_stream.flags |= CIP_UNALIGHED_DBC;
// AudioFire9 always reports wrong dbs.
if (efw->is_af9)
efw->tx_stream.flags |= CIP_WRONG_DBS;
// Firmware version 5.5 reports fixed interval for dbc.
if (efw->firmware_version == 0x5050000)
efw->tx_stream.ctx_data.tx.dbc_interval = 8;
}
return err;
}
@ -83,22 +105,16 @@ static int start_stream(struct snd_efw *efw, struct amdtp_stream *stream,
return 0;
}
/*
* This function should be called before starting the stream or after stopping
* the streams.
*/
static void
destroy_stream(struct snd_efw *efw, struct amdtp_stream *stream)
// This function should be called before starting the stream or after stopping
// the streams.
static void destroy_stream(struct snd_efw *efw, struct amdtp_stream *stream)
{
struct cmp_connection *conn;
amdtp_stream_destroy(stream);
if (stream == &efw->tx_stream)
conn = &efw->out_conn;
cmp_connection_destroy(&efw->out_conn);
else
conn = &efw->in_conn;
amdtp_stream_destroy(stream);
cmp_connection_destroy(conn);
cmp_connection_destroy(&efw->in_conn);
}
static int
@ -131,42 +147,21 @@ int snd_efw_stream_init_duplex(struct snd_efw *efw)
err = init_stream(efw, &efw->tx_stream);
if (err < 0)
goto end;
/* Fireworks transmits NODATA packets with TAG0. */
efw->tx_stream.flags |= CIP_EMPTY_WITH_TAG0;
/* Fireworks has its own meaning for dbc. */
efw->tx_stream.flags |= CIP_DBC_IS_END_EVENT;
/* Fireworks reset dbc at bus reset. */
efw->tx_stream.flags |= CIP_SKIP_DBC_ZERO_CHECK;
/*
* But Recent firmwares starts packets with non-zero dbc.
* Driver version 5.7.6 installs firmware version 5.7.3.
*/
if (efw->is_fireworks3 &&
(efw->firmware_version == 0x5070000 ||
efw->firmware_version == 0x5070300 ||
efw->firmware_version == 0x5080000))
efw->tx_stream.flags |= CIP_UNALIGHED_DBC;
/* AudioFire9 always reports wrong dbs. */
if (efw->is_af9)
efw->tx_stream.flags |= CIP_WRONG_DBS;
/* Firmware version 5.5 reports fixed interval for dbc. */
if (efw->firmware_version == 0x5050000)
efw->tx_stream.ctx_data.tx.dbc_interval = 8;
return err;
err = init_stream(efw, &efw->rx_stream);
if (err < 0) {
destroy_stream(efw, &efw->tx_stream);
goto end;
return err;
}
/* set IEC61883 compliant mode (actually not fully compliant...) */
// set IEC61883 compliant mode (actually not fully compliant...).
err = snd_efw_command_set_tx_mode(efw, SND_EFW_TRANSPORT_MODE_IEC61883);
if (err < 0) {
destroy_stream(efw, &efw->tx_stream);
destroy_stream(efw, &efw->rx_stream);
}
end:
return err;
}