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author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2017-08-20 21:25:04 +0900 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2017-08-21 12:24:23 +0200 |
commit | 3a93d082bacf887b47737c4b75c083dea7570832 (patch) | |
tree | ea029679f064aaab53be4bd4c824a3bea83323c5 /sound/firewire/motu/motu.c | |
parent | 8b460c76bd17128db90d69a3f8b4ad2ee744d118 (diff) |
ALSA: firewire-motu: add support for MOTU Audio Express
MOTU Audio Express is one of third generation in MOTU FireWire
series, produced in 2011. This model consists of three chips:
* TI TSB41AB2 (Physical layer for IEEE 1394 bus)
* Microchip USB3300 (Hi-Speed USB Device with ULPI interface)
* Xilinx Spartan-3A FPGA, XC3S400A (Link layer for IEEE 1394 bus, packet
processing and data block processing layer)
This commit adds support for this model. As I expected, it works with
current implementaion of protocol version 3. On the other hand, the unit
has a quirk to request subaction originated by any driver.
11:45:51.287643 firewire_ohci 0000:03:00.0: AT spd 2 tl 1f, ffc1 -> ffc0, -reserved-, QW req, fffff0000b14 = 02000200
11:45:51.289193 firewire_ohci 0000:03:00.0: AR spd 2 tl 1f, ffc0 -> ffc1, ack_complete, W resp
11:45:51.289381 fireire_core 0000:03:00.0: unsolicited response (source ffc0, tlabel 1f)
11:45:51.313071 firewire_ohci 0000:03:00.0: AT spd 2 tl 20, ffc1 -> ffc0, ack_pending , QW req, fffff0000b14 = 02000200
11:45:51.314539 firewire_ohci 0000:03:00.0: AR spd 2 tl 20, ffc0 -> ffc1, ack_complete, W resp
In 1394 OHCI (rev.1.1), after OUTPUT_LAST* descriptors is processed,
'xferStaus' field is filled with 'ContextControl[0:15]' (see clause 7.1.3).
5 bits in LSB side of the field has ack code in acknowledge from the unit
(see clause 7.2.2). A list of the code is shown in Table 3-2.
As long as I investigated, in a case of the '-reserved-' acknowledge
message from the unit, the field has 0x10. On the table, this value is
'Reserved for definition by future 1394 standards'. As long as I know,
any specifications of IEEE 1394 has no such extensions, thus the unit is
out of specification. Besides, I note that the unit does not always
acknowledge with the invalid code. I guess this is a bug of firmware. I
confirmed the bug in firmware version 1.04 and this is the latest one.
$ cd linux-firewire-utils
$ python2 ./src/crpp < /sys/bus/firewire/devices/fw1/config_rom
ROM header and bus information block
-----------------------------------------------------------------
400 0410a756 bus_info_length 4, crc_length 16, crc 42838
404 31333934 bus_name "1394"
408 20ff7000 irmc 0, cmc 0, isc 1, bmc 0, cyc_clk_acc 255, max_rec 7 (256)
40c 0001f200 company_id 0001f2 |
410 000a8a7b device_id 00000a8a7b | EUI-64 0001f200000a8a7b
root directory
-----------------------------------------------------------------
414 0004ef04 directory_length 4, crc 61188
418 030001f2 vendor
41c 0c0083c0 node capabilities per IEEE 1394
420 d1000002 --> unit directory at 428
424 8d000005 --> eui-64 leaf at 438
unit directory at 428
-----------------------------------------------------------------
428 00031680 directory_length 3, crc 5760
42c 120001f2 specifier id
430 13000033 version
434 17104800 model
eui-64 leaf at 438
-----------------------------------------------------------------
438 00025ef3 leaf_length 2, crc 24307
43c 0001f200 company_id 0001f2 |
440 000a8a7b device_id 00000a8a7b | EUI-64 0001f200000a8a7b
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/motu/motu.c')
-rw-r--r-- | sound/firewire/motu/motu.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/firewire/motu/motu.c b/sound/firewire/motu/motu.c index 13d26e36fe00..fddeb11283c3 100644 --- a/sound/firewire/motu/motu.c +++ b/sound/firewire/motu/motu.c @@ -224,6 +224,18 @@ static struct snd_motu_spec motu_828mk3 = { .analog_out_ports = 8, }; +static struct snd_motu_spec motu_audio_express = { + .name = "AudioExpress", + .protocol = &snd_motu_protocol_v3, + .flags = SND_MOTU_SPEC_SUPPORT_CLOCK_X2 | + SND_MOTU_SPEC_TX_MICINST_CHUNK | + SND_MOTU_SPEC_TX_RETURN_CHUNK | + SND_MOTU_SPEC_RX_MIDI_2ND_Q | + SND_MOTU_SPEC_TX_MIDI_3RD_Q, + .analog_in_ports = 2, + .analog_out_ports = 4, +}; + #define SND_MOTU_DEV_ENTRY(model, data) \ { \ .match_flags = IEEE1394_MATCH_VENDOR_ID | \ @@ -239,6 +251,7 @@ static const struct ieee1394_device_id motu_id_table[] = { SND_MOTU_DEV_ENTRY(0x101800, &motu_828mk2), SND_MOTU_DEV_ENTRY(0x106800, &motu_828mk3), /* FireWire only. */ SND_MOTU_DEV_ENTRY(0x100800, &motu_828mk3), /* Hybrid. */ + SND_MOTU_DEV_ENTRY(0x104800, &motu_audio_express), { } }; MODULE_DEVICE_TABLE(ieee1394, motu_id_table); |