1// SPDX-License-Identifier: GPL-2.0
2// dice-presonus.c - a part of driver for DICE based devices
3//
4// Copyright (c) 2019 Takashi Sakamoto
5
6#include "dice.h"
7
8struct dice_presonus_spec {
9 unsigned int tx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
10 unsigned int rx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
11 bool has_midi;
12};
13
14static const struct dice_presonus_spec dice_presonus_firesutio = {
15 .tx_pcm_chs = {{16, 16, 0}, {10, 2, 0} },
16 .rx_pcm_chs = {{16, 16, 0}, {10, 2, 0} },
17 .has_midi = true,
18};
19
20int snd_dice_detect_presonus_formats(struct snd_dice *dice)
21{
22 static const struct {
23 u32 model_id;
24 const struct dice_presonus_spec *spec;
25 } *entry, entries[] = {
26 {0x000008, &dice_presonus_firesutio},
27 };
28 struct fw_csr_iterator it;
29 int key, val, model_id;
30 int i;
31
32 model_id = 0;
33 fw_csr_iterator_init(ci: &it, p: dice->unit->directory);
34 while (fw_csr_iterator_next(ci: &it, key: &key, value: &val)) {
35 if (key == CSR_MODEL) {
36 model_id = val;
37 break;
38 }
39 }
40
41 for (i = 0; i < ARRAY_SIZE(entries); ++i) {
42 entry = entries + i;
43 if (entry->model_id == model_id)
44 break;
45 }
46 if (i == ARRAY_SIZE(entries))
47 return -ENODEV;
48
49 memcpy(dice->tx_pcm_chs, entry->spec->tx_pcm_chs,
50 MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
51 memcpy(dice->rx_pcm_chs, entry->spec->rx_pcm_chs,
52 MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
53
54 if (entry->spec->has_midi) {
55 dice->tx_midi_ports[0] = 1;
56 dice->rx_midi_ports[0] = 1;
57 }
58
59 return 0;
60}
61

source code of linux/sound/firewire/dice/dice-presonus.c