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8#include "tascam.h"
9
10MODULE_DESCRIPTION("TASCAM FireWire series Driver");
11MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
12MODULE_LICENSE("GPL v2");
13
14static const struct snd_tscm_spec model_specs[] = {
15 {
16 .name = "FW-1884",
17 .has_adat = true,
18 .has_spdif = true,
19 .pcm_capture_analog_channels = 8,
20 .pcm_playback_analog_channels = 8,
21 .midi_capture_ports = 4,
22 .midi_playback_ports = 4,
23 },
24 {
25 .name = "FW-1082",
26 .has_adat = false,
27 .has_spdif = true,
28 .pcm_capture_analog_channels = 8,
29 .pcm_playback_analog_channels = 2,
30 .midi_capture_ports = 2,
31 .midi_playback_ports = 2,
32 },
33 {
34 .name = "FW-1804",
35 .has_adat = true,
36 .has_spdif = true,
37 .pcm_capture_analog_channels = 8,
38 .pcm_playback_analog_channels = 2,
39 .midi_capture_ports = 2,
40 .midi_playback_ports = 4,
41 },
42};
43
44static int identify_model(struct snd_tscm *tscm)
45{
46 struct fw_device *fw_dev = fw_parent_device(tscm->unit);
47 const u32 *config_rom = fw_dev->config_rom;
48 char model[9];
49 unsigned int i;
50 u8 c;
51
52 if (fw_dev->config_rom_length < 30) {
53 dev_err(&tscm->unit->device,
54 "Configuration ROM is too short.\n");
55 return -ENODEV;
56 }
57
58
59 for (i = 0; i < 8; i++) {
60 c = config_rom[28 + i / 4] >> (24 - 8 * (i % 4));
61 if (c == '\0')
62 break;
63 model[i] = c;
64 }
65 model[i] = '\0';
66
67 for (i = 0; i < ARRAY_SIZE(model_specs); i++) {
68 if (strcmp(model, model_specs[i].name) == 0) {
69 tscm->spec = &model_specs[i];
70 break;
71 }
72 }
73 if (tscm->spec == NULL)
74 return -ENODEV;
75
76 strcpy(tscm->card->driver, "FW-TASCAM");
77 strcpy(tscm->card->shortname, model);
78 strcpy(tscm->card->mixername, model);
79 snprintf(tscm->card->longname, sizeof(tscm->card->longname),
80 "TASCAM %s, GUID %08x%08x at %s, S%d", model,
81 fw_dev->config_rom[3], fw_dev->config_rom[4],
82 dev_name(&tscm->unit->device), 100 << fw_dev->max_speed);
83
84 return 0;
85}
86
87static void tscm_card_free(struct snd_card *card)
88{
89 struct snd_tscm *tscm = card->private_data;
90
91 snd_tscm_transaction_unregister(tscm);
92 snd_tscm_stream_destroy_duplex(tscm);
93}
94
95static void do_registration(struct work_struct *work)
96{
97 struct snd_tscm *tscm = container_of(work, struct snd_tscm, dwork.work);
98 int err;
99
100 err = snd_card_new(&tscm->unit->device, -1, NULL, THIS_MODULE, 0,
101 &tscm->card);
102 if (err < 0)
103 return;
104 tscm->card->private_free = tscm_card_free;
105 tscm->card->private_data = tscm;
106
107 err = identify_model(tscm);
108 if (err < 0)
109 goto error;
110
111 err = snd_tscm_transaction_register(tscm);
112 if (err < 0)
113 goto error;
114
115 err = snd_tscm_stream_init_duplex(tscm);
116 if (err < 0)
117 goto error;
118
119 snd_tscm_proc_init(tscm);
120
121 err = snd_tscm_create_pcm_devices(tscm);
122 if (err < 0)
123 goto error;
124
125 err = snd_tscm_create_midi_devices(tscm);
126 if (err < 0)
127 goto error;
128
129 err = snd_tscm_create_hwdep_device(tscm);
130 if (err < 0)
131 goto error;
132
133 err = snd_card_register(tscm->card);
134 if (err < 0)
135 goto error;
136
137 tscm->registered = true;
138
139 return;
140error:
141 snd_card_free(tscm->card);
142 dev_info(&tscm->unit->device,
143 "Sound card registration failed: %d\n", err);
144}
145
146static int snd_tscm_probe(struct fw_unit *unit,
147 const struct ieee1394_device_id *entry)
148{
149 struct snd_tscm *tscm;
150
151
152 tscm = devm_kzalloc(&unit->device, sizeof(struct snd_tscm), GFP_KERNEL);
153 if (!tscm)
154 return -ENOMEM;
155 tscm->unit = fw_unit_get(unit);
156 dev_set_drvdata(&unit->device, tscm);
157
158 mutex_init(&tscm->mutex);
159 spin_lock_init(&tscm->lock);
160 init_waitqueue_head(&tscm->hwdep_wait);
161
162
163 INIT_DEFERRABLE_WORK(&tscm->dwork, do_registration);
164 snd_fw_schedule_registration(unit, &tscm->dwork);
165
166 return 0;
167}
168
169static void snd_tscm_update(struct fw_unit *unit)
170{
171 struct snd_tscm *tscm = dev_get_drvdata(&unit->device);
172
173
174 if (!tscm->registered)
175 snd_fw_schedule_registration(unit, &tscm->dwork);
176
177 snd_tscm_transaction_reregister(tscm);
178
179
180
181
182
183 if (tscm->registered) {
184 mutex_lock(&tscm->mutex);
185 snd_tscm_stream_update_duplex(tscm);
186 mutex_unlock(&tscm->mutex);
187 }
188}
189
190static void snd_tscm_remove(struct fw_unit *unit)
191{
192 struct snd_tscm *tscm = dev_get_drvdata(&unit->device);
193
194
195
196
197
198
199 cancel_delayed_work_sync(&tscm->dwork);
200
201 if (tscm->registered) {
202
203 snd_card_free(tscm->card);
204 }
205
206 mutex_destroy(&tscm->mutex);
207 fw_unit_put(tscm->unit);
208}
209
210static const struct ieee1394_device_id snd_tscm_id_table[] = {
211
212 {
213 .match_flags = IEEE1394_MATCH_VENDOR_ID |
214 IEEE1394_MATCH_SPECIFIER_ID |
215 IEEE1394_MATCH_VERSION,
216 .vendor_id = 0x00022e,
217 .specifier_id = 0x00022e,
218 .version = 0x800000,
219 },
220
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225
226
227
228 {
229 .match_flags = IEEE1394_MATCH_VENDOR_ID |
230 IEEE1394_MATCH_SPECIFIER_ID |
231 IEEE1394_MATCH_VERSION,
232 .vendor_id = 0x00022e,
233 .specifier_id = 0x00022e,
234 .version = 0x800003,
235 },
236
237 {
238 .match_flags = IEEE1394_MATCH_VENDOR_ID |
239 IEEE1394_MATCH_SPECIFIER_ID |
240 IEEE1394_MATCH_VERSION,
241 .vendor_id = 0x00022e,
242 .specifier_id = 0x00022e,
243 .version = 0x800004,
244 },
245 {}
246};
247MODULE_DEVICE_TABLE(ieee1394, snd_tscm_id_table);
248
249static struct fw_driver tscm_driver = {
250 .driver = {
251 .owner = THIS_MODULE,
252 .name = KBUILD_MODNAME,
253 .bus = &fw_bus_type,
254 },
255 .probe = snd_tscm_probe,
256 .update = snd_tscm_update,
257 .remove = snd_tscm_remove,
258 .id_table = snd_tscm_id_table,
259};
260
261static int __init snd_tscm_init(void)
262{
263 return driver_register(&tscm_driver.driver);
264}
265
266static void __exit snd_tscm_exit(void)
267{
268 driver_unregister(&tscm_driver.driver);
269}
270
271module_init(snd_tscm_init);
272module_exit(snd_tscm_exit);
273