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// Licensed under the terms of the GNU General Public License, version 2.
7
8#include "dice.h"
9
10struct dice_presonus_spec {
11	unsigned int tx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
12	unsigned int rx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
13	bool has_midi;
14};
15
16static const struct dice_presonus_spec dice_presonus_firesutio = {
17	.tx_pcm_chs = {{16, 16, 0}, {10, 2, 0} },
18	.rx_pcm_chs = {{16, 16, 0}, {10, 2, 0} },
19	.has_midi = true,
20};
21
22int snd_dice_detect_presonus_formats(struct snd_dice *dice)
23{
24	static const struct {
25		u32 model_id;
26		const struct dice_presonus_spec *spec;
27	} *entry, entries[] = {
28		{0x000008, &dice_presonus_firesutio},
29	};
30	struct fw_csr_iterator it;
31	int key, val, model_id;
32	int i;
33
34	model_id = 0;
35	fw_csr_iterator_init(&it, dice->unit->directory);
36	while (fw_csr_iterator_next(&it, &key, &val)) {
37		if (key == CSR_MODEL) {
38			model_id = val;
39			break;
40		}
41	}
42
43	for (i = 0; i < ARRAY_SIZE(entries); ++i) {
44		entry = entries + i;
45		if (entry->model_id == model_id)
46			break;
47	}
48	if (i == ARRAY_SIZE(entries))
49		return -ENODEV;
50
51	memcpy(dice->tx_pcm_chs, entry->spec->tx_pcm_chs,
52	       MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
53	memcpy(dice->rx_pcm_chs, entry->spec->rx_pcm_chs,
54	       MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
55
56	if (entry->spec->has_midi) {
57		dice->tx_midi_ports[0] = 1;
58		dice->rx_midi_ports[0] = 1;
59	}
60
61	return 0;
62}
63