Takashi Sakamoto
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c4580f2097
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ALSA: dice: add stream format parameters for PreSonus FireStudio
FireStudio was launched by PreSonus 2009. This model consists of three
ICs for its packet processing on IEEE 1394 bus:
- Texus Instruments TSB41AB2 for physical layer of IEEE 1394 bus
- WaveFront semiconductor, Dice II STD ASIC for link layer of IEEE 1394
bus and protocol layer
- Xilinx Spartan XG3S500E FPGA for signal processing
This model don't support TCAT extended application protocol. For such
devices, ALSA dice driver needs to have hard-coded parameters for stream
formats.
This commit adds hard-coded table for this model. As a result, sampling
transfer frequencies of 88.2/96.0 kHz are supported. I note that this
patch can be backported to Linux kernel v4.18 and later.
$ python2 crpp < /sys/bus/firewire/devices/fw1/config_rom
ROM header and bus information block
-----------------------------------------------------------------
400 04042eda bus_info_length 4, crc_length 4, crc 11994
404 31333934 bus_name "1394"
408 e0ff8112 irmc 1, cmc 1, isc 1, bmc 0, pmc 0, cyc_clk_acc 255,
max_rec 8 (512), max_rom 1, gen 1, spd 2 (S400)
40c 000a9204 company_id 000a92 |
410 023a8b7f device_id 04023a8b7f | EUI-64 000a9204023a8b7f
root directory
-----------------------------------------------------------------
414 000661b6 directory_length 6, crc 25014
418 03000a92 vendor
41c 8100000a --> descriptor leaf at 444
420 17000008 model
424 8100000d --> descriptor leaf at 458
428 0c0087c0 node capabilities per IEEE 1394
42c d1000001 --> unit directory at 430
unit directory at 430
-----------------------------------------------------------------
430 00041c75 directory_length 4, crc 7285
434 12000a92 specifier id
438 13000001 version
43c 17000008 model
440 8100000c --> descriptor leaf at 470
descriptor leaf at 444
-----------------------------------------------------------------
444 00047c11 leaf_length 4, crc 31761
448 00000000 textual descriptor
44c 00000000 minimal ASCII
450 50726553 "PreS"
454 6f6e7573 "onus"
descriptor leaf at 458
-----------------------------------------------------------------
458 0005d7b3 leaf_length 5, crc 55219
45c 00000000 textual descriptor
460 00000000 minimal ASCII
464 46495245 "FIRE"
468 53545544 "STUD"
46c 494f0000 "IO"
descriptor leaf at 470
-----------------------------------------------------------------
470 0005d7b3 leaf_length 5, crc 55219
474 00000000 textual descriptor
478 00000000 minimal ASCII
47c 46495245 "FIRE"
480 53545544 "STUD"
484 494f0000 "IO"
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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2019-05-20 07:46:43 +02:00 |
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