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(&it, dice->unit->directory);
34	while (fw_csr_iterator_next(&it, &key, &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