1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * dice-tc_electronic.c - a part of driver for DICE based devices
4  *
5  * Copyright (c) 2018 Takashi Sakamoto
6  */
7 
8 #include "dice.h"
9 
10 struct dice_tc_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 
16 static const struct dice_tc_spec desktop_konnekt6 = {
17 	.tx_pcm_chs = {{6, 6, 2}, {0, 0, 0} },
18 	.rx_pcm_chs = {{6, 6, 4}, {0, 0, 0} },
19 	.has_midi = false,
20 };
21 
22 static const struct dice_tc_spec impact_twin = {
23 	.tx_pcm_chs = {{14, 10, 6}, {0, 0, 0} },
24 	.rx_pcm_chs = {{14, 10, 6}, {0, 0, 0} },
25 	.has_midi = true,
26 };
27 
28 static const struct dice_tc_spec konnekt_8 = {
29 	.tx_pcm_chs = {{4, 4, 3}, {0, 0, 0} },
30 	.rx_pcm_chs = {{4, 4, 3}, {0, 0, 0} },
31 	.has_midi = true,
32 };
33 
34 static const struct dice_tc_spec konnekt_24d = {
35 	.tx_pcm_chs = {{16, 16, 6}, {0, 0, 0} },
36 	.rx_pcm_chs = {{16, 16, 6}, {0, 0, 0} },
37 	.has_midi = true,
38 };
39 
40 static const struct dice_tc_spec konnekt_live = {
41 	.tx_pcm_chs = {{16, 16, 16}, {0, 0, 0} },
42 	.rx_pcm_chs = {{16, 16, 16}, {0, 0, 0} },
43 	.has_midi = true,
44 };
45 
46 static const struct dice_tc_spec studio_konnekt_48 = {
47 	.tx_pcm_chs = {{16, 16, 8}, {16, 16, 7} },
48 	.rx_pcm_chs = {{16, 16, 8}, {14, 14, 7} },
49 	.has_midi = true,
50 };
51 
52 static const struct dice_tc_spec digital_konnekt_x32 = {
53 	.tx_pcm_chs = {{16, 16, 4}, {0, 0, 0} },
54 	.rx_pcm_chs = {{16, 16, 4}, {0, 0, 0} },
55 	.has_midi = false,
56 };
57 
58 int snd_dice_detect_tcelectronic_formats(struct snd_dice *dice)
59 {
60 	static const struct {
61 		u32 model_id;
62 		const struct dice_tc_spec *spec;
63 	} *entry, entries[] = {
64 		{0x00000020, &konnekt_24d},
65 		{0x00000021, &konnekt_8},
66 		{0x00000022, &studio_konnekt_48},
67 		{0x00000023, &konnekt_live},
68 		{0x00000024, &desktop_konnekt6},
69 		{0x00000027, &impact_twin},
70 		{0x00000030, &digital_konnekt_x32},
71 	};
72 	struct fw_csr_iterator it;
73 	int key, val, model_id;
74 	int i;
75 
76 	model_id = 0;
77 	fw_csr_iterator_init(&it, dice->unit->directory);
78 	while (fw_csr_iterator_next(&it, &key, &val)) {
79 		if (key == CSR_MODEL) {
80 			model_id = val;
81 			break;
82 		}
83 	}
84 
85 	for (i = 0; i < ARRAY_SIZE(entries); ++i) {
86 		entry = entries + i;
87 		if (entry->model_id == model_id)
88 			break;
89 	}
90 	if (i == ARRAY_SIZE(entries))
91 		return -ENODEV;
92 
93 	memcpy(dice->tx_pcm_chs, entry->spec->tx_pcm_chs,
94 	       MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
95 	memcpy(dice->rx_pcm_chs, entry->spec->rx_pcm_chs,
96 	       MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
97 
98 	if (entry->spec->has_midi) {
99 		dice->tx_midi_ports[0] = 1;
100 		dice->rx_midi_ports[0] = 1;
101 	}
102 
103 	return 0;
104 }
105