2 * tascam.c - a part of driver for TASCAM FireWire series
4 * Copyright (c) 2015 Takashi Sakamoto
6 * Licensed under the terms of the GNU General Public License, version 2.
11 MODULE_DESCRIPTION("TASCAM FireWire series Driver");
12 MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
13 MODULE_LICENSE("GPL v2");
15 static struct snd_tscm_spec model_specs
[] = {
20 .pcm_capture_analog_channels
= 8,
21 .pcm_playback_analog_channels
= 8,
22 .midi_capture_ports
= 4,
23 .midi_playback_ports
= 4,
24 .is_controller
= true,
30 .pcm_capture_analog_channels
= 8,
31 .pcm_playback_analog_channels
= 2,
32 .midi_capture_ports
= 2,
33 .midi_playback_ports
= 2,
34 .is_controller
= true,
36 /* FW-1804 may be supported. */
39 static int identify_model(struct snd_tscm
*tscm
)
41 struct fw_device
*fw_dev
= fw_parent_device(tscm
->unit
);
42 const u32
*config_rom
= fw_dev
->config_rom
;
47 if (fw_dev
->config_rom_length
< 30) {
48 dev_err(&tscm
->unit
->device
,
49 "Configuration ROM is too short.\n");
53 /* Pick up model name from certain addresses. */
54 for (i
= 0; i
< 8; i
++) {
55 c
= config_rom
[28 + i
/ 4] >> (24 - 8 * (i
% 4));
62 for (i
= 0; i
< ARRAY_SIZE(model_specs
); i
++) {
63 if (strcmp(model
, model_specs
[i
].name
) == 0) {
64 tscm
->spec
= &model_specs
[i
];
68 if (tscm
->spec
== NULL
)
71 strcpy(tscm
->card
->driver
, "FW-TASCAM");
72 strcpy(tscm
->card
->shortname
, model
);
73 strcpy(tscm
->card
->mixername
, model
);
74 snprintf(tscm
->card
->longname
, sizeof(tscm
->card
->longname
),
75 "TASCAM %s, GUID %08x%08x at %s, S%d", model
,
76 fw_dev
->config_rom
[3], fw_dev
->config_rom
[4],
77 dev_name(&tscm
->unit
->device
), 100 << fw_dev
->max_speed
);
82 static void tscm_card_free(struct snd_card
*card
)
84 struct snd_tscm
*tscm
= card
->private_data
;
86 snd_tscm_transaction_unregister(tscm
);
87 snd_tscm_stream_destroy_duplex(tscm
);
89 fw_unit_put(tscm
->unit
);
91 mutex_destroy(&tscm
->mutex
);
94 static int snd_tscm_probe(struct fw_unit
*unit
,
95 const struct ieee1394_device_id
*entry
)
97 struct snd_card
*card
;
98 struct snd_tscm
*tscm
;
102 err
= snd_card_new(&unit
->device
, -1, NULL
, THIS_MODULE
,
103 sizeof(struct snd_tscm
), &card
);
106 card
->private_free
= tscm_card_free
;
108 /* initialize myself */
109 tscm
= card
->private_data
;
111 tscm
->unit
= fw_unit_get(unit
);
113 mutex_init(&tscm
->mutex
);
114 spin_lock_init(&tscm
->lock
);
115 init_waitqueue_head(&tscm
->hwdep_wait
);
117 err
= identify_model(tscm
);
121 snd_tscm_proc_init(tscm
);
123 err
= snd_tscm_stream_init_duplex(tscm
);
127 err
= snd_tscm_create_pcm_devices(tscm
);
131 err
= snd_tscm_transaction_register(tscm
);
135 err
= snd_tscm_create_midi_devices(tscm
);
139 err
= snd_tscm_create_hwdep_device(tscm
);
143 err
= snd_card_register(card
);
147 dev_set_drvdata(&unit
->device
, tscm
);
155 static void snd_tscm_update(struct fw_unit
*unit
)
157 struct snd_tscm
*tscm
= dev_get_drvdata(&unit
->device
);
159 snd_tscm_transaction_reregister(tscm
);
161 mutex_lock(&tscm
->mutex
);
162 snd_tscm_stream_update_duplex(tscm
);
163 mutex_unlock(&tscm
->mutex
);
166 static void snd_tscm_remove(struct fw_unit
*unit
)
168 struct snd_tscm
*tscm
= dev_get_drvdata(&unit
->device
);
170 /* No need to wait for releasing card object in this context. */
171 snd_card_free_when_closed(tscm
->card
);
174 static const struct ieee1394_device_id snd_tscm_id_table
[] = {
176 .match_flags
= IEEE1394_MATCH_VENDOR_ID
|
177 IEEE1394_MATCH_SPECIFIER_ID
,
178 .vendor_id
= 0x00022e,
179 .specifier_id
= 0x00022e,
181 /* FE-08 requires reverse-engineering because it just has faders. */
184 MODULE_DEVICE_TABLE(ieee1394
, snd_tscm_id_table
);
186 static struct fw_driver tscm_driver
= {
188 .owner
= THIS_MODULE
,
189 .name
= "snd-firewire-tascam",
192 .probe
= snd_tscm_probe
,
193 .update
= snd_tscm_update
,
194 .remove
= snd_tscm_remove
,
195 .id_table
= snd_tscm_id_table
,
198 static int __init
snd_tscm_init(void)
200 return driver_register(&tscm_driver
.driver
);
203 static void __exit
snd_tscm_exit(void)
205 driver_unregister(&tscm_driver
.driver
);
208 module_init(snd_tscm_init
);
209 module_exit(snd_tscm_exit
);