1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * digi00x.c - a part of driver for Digidesign Digi 002/003 family
4 *
5 * Copyright (c) 2014-2015 Takashi Sakamoto
6 */
7
8 #include "digi00x.h"
9
10 MODULE_DESCRIPTION("Digidesign Digi 002/003 family Driver");
11 MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
12 MODULE_LICENSE("GPL v2");
13
14 #define VENDOR_DIGIDESIGN 0x00a07e
15 #define MODEL_CONSOLE 0x000001
16 #define MODEL_RACK 0x000002
17 #define SPEC_VERSION 0x000001
18
name_card(struct snd_dg00x * dg00x)19 static int name_card(struct snd_dg00x *dg00x)
20 {
21 struct fw_device *fw_dev = fw_parent_device(dg00x->unit);
22 char name[32] = {0};
23 char *model;
24 int err;
25
26 err = fw_csr_string(dg00x->unit->directory, CSR_MODEL, name,
27 sizeof(name));
28 if (err < 0)
29 return err;
30
31 model = skip_spaces(name);
32
33 strcpy(dg00x->card->driver, "Digi00x");
34 strcpy(dg00x->card->shortname, model);
35 strcpy(dg00x->card->mixername, model);
36 snprintf(dg00x->card->longname, sizeof(dg00x->card->longname),
37 "Digidesign %s, GUID %08x%08x at %s, S%d", model,
38 fw_dev->config_rom[3], fw_dev->config_rom[4],
39 dev_name(&dg00x->unit->device), 100 << fw_dev->max_speed);
40
41 return 0;
42 }
43
dg00x_card_free(struct snd_card * card)44 static void dg00x_card_free(struct snd_card *card)
45 {
46 struct snd_dg00x *dg00x = card->private_data;
47
48 snd_dg00x_stream_destroy_duplex(dg00x);
49 snd_dg00x_transaction_unregister(dg00x);
50
51 mutex_destroy(&dg00x->mutex);
52 fw_unit_put(dg00x->unit);
53 }
54
snd_dg00x_probe(struct fw_unit * unit,const struct ieee1394_device_id * entry)55 static int snd_dg00x_probe(struct fw_unit *unit, const struct ieee1394_device_id *entry)
56 {
57 struct snd_card *card;
58 struct snd_dg00x *dg00x;
59 int err;
60
61 err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE, sizeof(*dg00x), &card);
62 if (err < 0)
63 return err;
64 card->private_free = dg00x_card_free;
65
66 dg00x = card->private_data;
67 dg00x->unit = fw_unit_get(unit);
68 dev_set_drvdata(&unit->device, dg00x);
69 dg00x->card = card;
70
71 mutex_init(&dg00x->mutex);
72 spin_lock_init(&dg00x->lock);
73 init_waitqueue_head(&dg00x->hwdep_wait);
74
75 dg00x->is_console = entry->model_id == MODEL_CONSOLE;
76
77 err = name_card(dg00x);
78 if (err < 0)
79 goto error;
80
81 err = snd_dg00x_stream_init_duplex(dg00x);
82 if (err < 0)
83 goto error;
84
85 snd_dg00x_proc_init(dg00x);
86
87 err = snd_dg00x_create_pcm_devices(dg00x);
88 if (err < 0)
89 goto error;
90
91 err = snd_dg00x_create_midi_devices(dg00x);
92 if (err < 0)
93 goto error;
94
95 err = snd_dg00x_create_hwdep_device(dg00x);
96 if (err < 0)
97 goto error;
98
99 err = snd_dg00x_transaction_register(dg00x);
100 if (err < 0)
101 goto error;
102
103 err = snd_card_register(card);
104 if (err < 0)
105 goto error;
106
107 return 0;
108 error:
109 snd_card_free(card);
110 return err;
111 }
112
snd_dg00x_update(struct fw_unit * unit)113 static void snd_dg00x_update(struct fw_unit *unit)
114 {
115 struct snd_dg00x *dg00x = dev_get_drvdata(&unit->device);
116
117 snd_dg00x_transaction_reregister(dg00x);
118
119 mutex_lock(&dg00x->mutex);
120 snd_dg00x_stream_update_duplex(dg00x);
121 mutex_unlock(&dg00x->mutex);
122 }
123
snd_dg00x_remove(struct fw_unit * unit)124 static void snd_dg00x_remove(struct fw_unit *unit)
125 {
126 struct snd_dg00x *dg00x = dev_get_drvdata(&unit->device);
127
128 // Block till all of ALSA character devices are released.
129 snd_card_free(dg00x->card);
130 }
131
132 static const struct ieee1394_device_id snd_dg00x_id_table[] = {
133 /* Both of 002/003 use the same ID. */
134 {
135 .match_flags = IEEE1394_MATCH_VENDOR_ID |
136 IEEE1394_MATCH_VERSION |
137 IEEE1394_MATCH_MODEL_ID,
138 .vendor_id = VENDOR_DIGIDESIGN,
139 .version = SPEC_VERSION,
140 .model_id = MODEL_CONSOLE,
141 },
142 {
143 .match_flags = IEEE1394_MATCH_VENDOR_ID |
144 IEEE1394_MATCH_VERSION |
145 IEEE1394_MATCH_MODEL_ID,
146 .vendor_id = VENDOR_DIGIDESIGN,
147 .version = SPEC_VERSION,
148 .model_id = MODEL_RACK,
149 },
150 {}
151 };
152 MODULE_DEVICE_TABLE(ieee1394, snd_dg00x_id_table);
153
154 static struct fw_driver dg00x_driver = {
155 .driver = {
156 .owner = THIS_MODULE,
157 .name = KBUILD_MODNAME,
158 .bus = &fw_bus_type,
159 },
160 .probe = snd_dg00x_probe,
161 .update = snd_dg00x_update,
162 .remove = snd_dg00x_remove,
163 .id_table = snd_dg00x_id_table,
164 };
165
snd_dg00x_init(void)166 static int __init snd_dg00x_init(void)
167 {
168 return driver_register(&dg00x_driver.driver);
169 }
170
snd_dg00x_exit(void)171 static void __exit snd_dg00x_exit(void)
172 {
173 driver_unregister(&dg00x_driver.driver);
174 }
175
176 module_init(snd_dg00x_init);
177 module_exit(snd_dg00x_exit);
178