diff options
Diffstat (limited to 'sound/firewire')
| -rw-r--r-- | sound/firewire/amdtp-am824.c | 8 | ||||
| -rw-r--r-- | sound/firewire/amdtp-stream.c | 3 | ||||
| -rw-r--r-- | sound/firewire/amdtp-stream.h | 5 | ||||
| -rw-r--r-- | sound/firewire/fireworks/fireworks_stream.c | 2 |
4 files changed, 11 insertions, 7 deletions
diff --git a/sound/firewire/amdtp-am824.c b/sound/firewire/amdtp-am824.c index fd5d6b8ac557..99c567ded7a3 100644 --- a/sound/firewire/amdtp-am824.c +++ b/sound/firewire/amdtp-am824.c @@ -315,12 +315,16 @@ static void read_midi_messages(struct amdtp_stream *s, __be32 *buffer, unsigned int frames) { struct amdtp_am824 *p = s->protocol; - unsigned int f, port; int len; u8 *b; + int f; for (f = 0; f < frames; f++) { - port = (8 - s->ctx_data.tx.first_dbc + s->data_block_counter + f) % 8; + unsigned int port = f; + + if (!(s->flags & CIP_UNALIGHED_DBC)) + port += s->data_block_counter; + port %= 8; b = (u8 *)&buffer[p->midi_position]; len = b[0] - 0x80; diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c index 4d71d74707cf..fc1e8e5b9429 100644 --- a/sound/firewire/amdtp-stream.c +++ b/sound/firewire/amdtp-stream.c @@ -584,8 +584,7 @@ static int check_cip_header(struct amdtp_stream *s, const __be32 *buf, s->data_block_counter != UINT_MAX) *dbc = s->data_block_counter; - if (((s->flags & CIP_SKIP_DBC_ZERO_CHECK) && - *dbc == s->ctx_data.tx.first_dbc) || + if ((*dbc == 0x00 && (s->flags & CIP_SKIP_DBC_ZERO_CHECK)) || s->data_block_counter == UINT_MAX) { lost = false; } else if (!(s->flags & CIP_DBC_IS_END_EVENT)) { diff --git a/sound/firewire/amdtp-stream.h b/sound/firewire/amdtp-stream.h index 3942894c11ac..5d611122312b 100644 --- a/sound/firewire/amdtp-stream.h +++ b/sound/firewire/amdtp-stream.h @@ -33,6 +33,8 @@ * @CIP_HEADER_WITHOUT_EOH: Only for in-stream. CIP Header doesn't include * valid EOH. * @CIP_NO_HEADERS: a lack of headers in packets + * @CIP_UNALIGHED_DBC: Only for in-stream. The value of dbc is not alighed to + * the value of current SYT_INTERVAL; e.g. initial value is not zero. */ enum cip_flags { CIP_NONBLOCKING = 0x00, @@ -45,6 +47,7 @@ enum cip_flags { CIP_JUMBO_PAYLOAD = 0x40, CIP_HEADER_WITHOUT_EOH = 0x80, CIP_NO_HEADER = 0x100, + CIP_UNALIGHED_DBC = 0x200, }; /** @@ -119,8 +122,6 @@ struct amdtp_stream { // Fixed interval of dbc between previos/current // packets. unsigned int dbc_interval; - // Indicate the value of dbc field in a first packet. - unsigned int first_dbc; } tx; struct { // To calculate CIP data blocks and tstamp. diff --git a/sound/firewire/fireworks/fireworks_stream.c b/sound/firewire/fireworks/fireworks_stream.c index e659a0b89ba5..385fc9686365 100644 --- a/sound/firewire/fireworks/fireworks_stream.c +++ b/sound/firewire/fireworks/fireworks_stream.c @@ -146,7 +146,7 @@ int snd_efw_stream_init_duplex(struct snd_efw *efw) (efw->firmware_version == 0x5070000 || efw->firmware_version == 0x5070300 || efw->firmware_version == 0x5080000)) - efw->tx_stream.ctx_data.tx.first_dbc = 0x02; + efw->tx_stream.flags |= CIP_UNALIGHED_DBC; /* AudioFire9 always reports wrong dbs. */ if (efw->is_af9) efw->tx_stream.flags |= CIP_WRONG_DBS; |