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| author |   Clemens Ladisch <clemens@ladisch.de> | 2011-09-04 22:12:48 +0200 |
|---|---|---|
| committer | Clemens Ladisch <clemens@ladisch.de> | 2013-10-20 22:07:57 +0200 |
| commit | e84d15f619c13e83b33023c84527ee35ef01b6b4 (patch) | |
| tree | a5d06e046895ebc5a14d06c93fdd4f39eb7c840a /sound/firewire/amdtp.h | |
| parent | ALSA: dice: reduce noisy logging (diff) | |
| download | linux-dev-e84d15f619c13e83b33023c84527ee35ef01b6b4.tar.xz linux-dev-e84d15f619c13e83b33023c84527ee35ef01b6b4.zip | |
ALSA: dice, firewire-lib: add blocking mode
Allow AMDTP output streams to use blocking mode.
Use it for DICE devices, because the old DICE-II chip will in some cases
not be able to lock to non-blocking streams (erratum E7).
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'sound/firewire/amdtp.h')
| -rw-r--r-- | sound/firewire/amdtp.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h index f6103d68c4b1..fd4ce3030279 100644 --- a/sound/firewire/amdtp.h +++ b/sound/firewire/amdtp.h @@ -11,9 +11,13 @@ * sample_rate/8000 samples, with rounding up or down to adjust * for clock skew and left-over fractional samples. This should * be used if supported by the device. + * @CIP_BLOCKING: In blocking mode, each packet contains either zero or + * SYT_INTERVAL samples, with these two types alternating so that + * the overall sample rate comes out right. */ enum cip_out_flags { - CIP_NONBLOCKING = 0, + CIP_NONBLOCKING = 0x00, + CIP_BLOCKING = 0x01, }; /** @@ -51,6 +55,7 @@ struct amdtp_out_stream { __be32 *buffer, unsigned int frames); unsigned int syt_interval; + unsigned int transfer_delay; unsigned int source_node_id_field; struct iso_packets_buffer buffer; |