forked from Minki/linux
c4580f2097
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>
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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// dice-presonus.c - a part of driver for DICE based devices
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//
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// Copyright (c) 2019 Takashi Sakamoto
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//
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// Licensed under the terms of the GNU General Public License, version 2.
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#include "dice.h"
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struct dice_presonus_spec {
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unsigned int tx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
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unsigned int rx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
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bool has_midi;
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};
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static const struct dice_presonus_spec dice_presonus_firesutio = {
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.tx_pcm_chs = {{16, 16, 0}, {10, 2, 0} },
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.rx_pcm_chs = {{16, 16, 0}, {10, 2, 0} },
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.has_midi = true,
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};
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int snd_dice_detect_presonus_formats(struct snd_dice *dice)
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{
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static const struct {
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u32 model_id;
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const struct dice_presonus_spec *spec;
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} *entry, entries[] = {
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{0x000008, &dice_presonus_firesutio},
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};
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struct fw_csr_iterator it;
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int key, val, model_id;
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int i;
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model_id = 0;
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fw_csr_iterator_init(&it, dice->unit->directory);
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while (fw_csr_iterator_next(&it, &key, &val)) {
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if (key == CSR_MODEL) {
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model_id = val;
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break;
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}
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}
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for (i = 0; i < ARRAY_SIZE(entries); ++i) {
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entry = entries + i;
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if (entry->model_id == model_id)
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break;
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}
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if (i == ARRAY_SIZE(entries))
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return -ENODEV;
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memcpy(dice->tx_pcm_chs, entry->spec->tx_pcm_chs,
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MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
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memcpy(dice->rx_pcm_chs, entry->spec->rx_pcm_chs,
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MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
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if (entry->spec->has_midi) {
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dice->tx_midi_ports[0] = 1;
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dice->rx_midi_ports[0] = 1;
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}
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return 0;
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}
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