This commit adds enumeration to describe quirks of OXFW ASICs.
Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp --- sound/firewire/oxfw/oxfw-stream.c | 20 +++++++------------- sound/firewire/oxfw/oxfw.c | 3 +++ sound/firewire/oxfw/oxfw.h | 8 ++++++++ 3 files changed, 18 insertions(+), 13 deletions(-)
diff --git a/sound/firewire/oxfw/oxfw-stream.c b/sound/firewire/oxfw/oxfw-stream.c index 80c9dc13f1b5..65b458da2796 100644 --- a/sound/firewire/oxfw/oxfw-stream.c +++ b/sound/firewire/oxfw/oxfw-stream.c @@ -153,12 +153,18 @@ static int init_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream) struct cmp_connection *conn; enum cmp_direction c_dir; enum amdtp_stream_direction s_dir; + int flags = CIP_NONBLOCKING; int err;
if (stream == &oxfw->tx_stream) { conn = &oxfw->out_conn; c_dir = CMP_OUTPUT; s_dir = AMDTP_IN_STREAM; + + if (oxfw->quirks & SND_OXFW_QUIRK_JUMBO_PAYLOAD) + flags |= CIP_JUMBO_PAYLOAD; + if (oxfw->wrong_dbs) + flags |= CIP_WRONG_DBS; } else { conn = &oxfw->in_conn; c_dir = CMP_INPUT; @@ -169,24 +175,12 @@ static int init_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream) if (err < 0) return err;
- err = amdtp_am824_init(stream, oxfw->unit, s_dir, CIP_NONBLOCKING); + err = amdtp_am824_init(stream, oxfw->unit, s_dir, flags); if (err < 0) { cmp_connection_destroy(conn); return err; }
- /* - * 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; - } - return 0; }
diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c index 9a9c84bc811a..90a66e1312fe 100644 --- a/sound/firewire/oxfw/oxfw.c +++ b/sound/firewire/oxfw/oxfw.c @@ -86,6 +86,9 @@ static int name_card(struct snd_oxfw *oxfw) goto end; be32_to_cpus(&firmware);
+ if (firmware >> 20 == 0x970) + oxfw->quirks |= SND_OXFW_QUIRK_JUMBO_PAYLOAD; + /* to apply card definitions */ if (oxfw->entry->vendor_id == VENDOR_GRIFFIN || oxfw->entry->vendor_id == VENDOR_LACIE) { diff --git a/sound/firewire/oxfw/oxfw.h b/sound/firewire/oxfw/oxfw.h index fa2d7f9e2dc3..bc6706984fbb 100644 --- a/sound/firewire/oxfw/oxfw.h +++ b/sound/firewire/oxfw/oxfw.h @@ -32,6 +32,12 @@ #include "../amdtp-am824.h" #include "../cmp.h"
+enum snd_oxfw_quirk { + // Postpone transferring packets during handling asynchronous transaction. As a result, + // next isochronous packet includes more events than one packet can include. + SND_OXFW_QUIRK_JUMBO_PAYLOAD = 0x01, +}; + /* This is an arbitrary number for convinience. */ #define SND_OXFW_STREAM_FORMAT_ENTRIES 10 struct snd_oxfw { @@ -43,6 +49,8 @@ struct snd_oxfw { bool registered; struct delayed_work dwork;
+ // The combination of snd_oxfw_quirk enumeration-constants. + int quirks; bool wrong_dbs; bool has_output; bool has_input;