void snd_bebob_stream_destroy(struct snd_bebob *bebob, struct amdtp_stream *stream)
{
snd_bebob_stream_stop(bebob, stream);
if (stream == &bebob->tx_stream)
cmp_connection_destroy(&bebob->out_conn);
else
cmp_connection_destroy(&bebob->in_conn);
return;
}
static void
destroy_stream(struct snd_efw *efw, struct amdtp_stream *stream)
{
stop_stream(efw, stream);
amdtp_stream_destroy(stream);
if (stream == &efw->tx_stream)
cmp_connection_destroy(&efw->out_conn);
else
cmp_connection_destroy(&efw->in_conn);
}
static int
init_stream(struct snd_efw *efw, struct amdtp_stream *stream)
{
struct cmp_connection *conn;
enum cmp_direction c_dir;
enum amdtp_stream_direction s_dir;
int err;
if (stream == &efw->tx_stream) {
conn = &efw->out_conn;
c_dir = CMP_OUTPUT;
s_dir = AMDTP_IN_STREAM;
} else {
conn = &efw->in_conn;
c_dir = CMP_INPUT;
s_dir = AMDTP_OUT_STREAM;
}
err = cmp_connection_init(conn, efw->unit, c_dir, 0);
if (err < 0)
goto end;
err = amdtp_stream_init(stream, efw->unit, s_dir, CIP_BLOCKING);
if (err < 0) {
amdtp_stream_destroy(stream);
cmp_connection_destroy(conn);
}
end:
return err;
}
int snd_bebob_stream_init(struct snd_bebob *bebob, struct amdtp_stream *stream)
{
struct cmp_connection *conn;
enum cmp_direction c_dir;
enum amdtp_stream_direction s_dir;
int err;
if (stream == &bebob->tx_stream) {
conn= &bebob->out_conn;
c_dir = CMP_OUTPUT;
s_dir = AMDTP_IN_STREAM;
} else {
conn= &bebob->in_conn;
c_dir = CMP_INPUT;
s_dir = AMDTP_OUT_STREAM;
}
err = cmp_connection_init(conn, bebob->unit, c_dir, 0);
if (err < 0)
goto end;
err = amdtp_stream_init(stream, bebob->unit, s_dir, CIP_NONBLOCKING);
if (err < 0) {
cmp_connection_destroy(conn);
goto end;
}
end:
return err;
}
void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw)
{
stop_stream(oxfw);
amdtp_stream_destroy(&oxfw->rx_stream);
cmp_connection_destroy(&oxfw->in_conn);
}
/*
* This function should be called before starting the stream or after stopping
* the streams.
*/
void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw,
struct amdtp_stream *stream)
{
struct cmp_connection *conn;
if (stream == &oxfw->tx_stream)
conn = &oxfw->out_conn;
else
conn = &oxfw->in_conn;
amdtp_stream_destroy(stream);
cmp_connection_destroy(conn);
}
static int
init_both_connections(struct snd_bebob *bebob)
{
int err;
err = cmp_connection_init(&bebob->in_conn,
bebob->unit, CMP_INPUT, 0);
if (err < 0)
goto end;
err = cmp_connection_init(&bebob->out_conn,
bebob->unit, CMP_OUTPUT, 0);
if (err < 0)
cmp_connection_destroy(&bebob->in_conn);
end:
return err;
}
int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw)
{
int err;
err = cmp_connection_init(&oxfw->in_conn, oxfw->unit,
CMP_INPUT, 0);
if (err < 0)
goto end;
err = amdtp_stream_init(&oxfw->rx_stream, oxfw->unit,
AMDTP_OUT_STREAM, CIP_NONBLOCKING);
if (err < 0) {
amdtp_stream_destroy(&oxfw->rx_stream);
cmp_connection_destroy(&oxfw->in_conn);
}
end:
return err;
}
int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw,
struct amdtp_stream *stream)
{
struct cmp_connection *conn;
enum cmp_direction c_dir;
enum amdtp_stream_direction s_dir;
int err;
if (stream == &oxfw->tx_stream) {
conn = &oxfw->out_conn;
c_dir = CMP_OUTPUT;
s_dir = AMDTP_IN_STREAM;
} else {
conn = &oxfw->in_conn;
c_dir = CMP_INPUT;
s_dir = AMDTP_OUT_STREAM;
}
err = cmp_connection_init(conn, oxfw->unit, c_dir, 0);
if (err < 0)
goto end;
err = amdtp_am824_init(stream, oxfw->unit, s_dir, CIP_NONBLOCKING);
if (err < 0) {
amdtp_stream_destroy(stream);
cmp_connection_destroy(conn);
goto end;
}
/*
* OXFW starts to transmit packets with non-zero dbc.
* OXFW postpone transferring packets till handling any asynchronous
* packets. As a result, next isochronous packet includes more data
* blocks than IEC 61883-6 defines.
*/
if (stream == &oxfw->tx_stream) {
oxfw->tx_stream.flags |= CIP_JUMBO_PAYLOAD;
if (oxfw->wrong_dbs)
oxfw->tx_stream.flags |= CIP_WRONG_DBS;
}
end:
return err;
}
static void
destroy_both_connections(struct snd_bebob *bebob)
{
cmp_connection_destroy(&bebob->in_conn);
cmp_connection_destroy(&bebob->out_conn);
}
