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,
29 .pcm_capture_analog_channels
= 8,
30 .pcm_playback_analog_channels
= 2,
31 .midi_capture_ports
= 2,
32 .midi_playback_ports
= 2,
38 .pcm_capture_analog_channels
= 8,
39 .pcm_playback_analog_channels
= 2,
40 .midi_capture_ports
= 2,
41 .midi_playback_ports
= 4,
45 static int identify_model(struct snd_tscm
*tscm
)
47 struct fw_device
*fw_dev
= fw_parent_device(tscm
->unit
);
48 const u32
*config_rom
= fw_dev
->config_rom
;
53 if (fw_dev
->config_rom_length
< 30) {
54 dev_err(&tscm
->unit
->device
,
55 "Configuration ROM is too short.\n");
59 /* Pick up model name from certain addresses. */
60 for (i
= 0; i
< 8; i
++) {
61 c
= config_rom
[28 + i
/ 4] >> (24 - 8 * (i
% 4));
68 for (i
= 0; i
< ARRAY_SIZE(model_specs
); i
++) {
69 if (strcmp(model
, model_specs
[i
].name
) == 0) {
70 tscm
->spec
= &model_specs
[i
];
74 if (tscm
->spec
== NULL
)
77 strcpy(tscm
->card
->driver
, "FW-TASCAM");
78 strcpy(tscm
->card
->shortname
, model
);
79 strcpy(tscm
->card
->mixername
, model
);
80 snprintf(tscm
->card
->longname
, sizeof(tscm
->card
->longname
),
81 "TASCAM %s, GUID %08x%08x at %s, S%d", model
,
82 fw_dev
->config_rom
[3], fw_dev
->config_rom
[4],
83 dev_name(&tscm
->unit
->device
), 100 << fw_dev
->max_speed
);
88 static void tscm_card_free(struct snd_card
*card
)
90 struct snd_tscm
*tscm
= card
->private_data
;
92 snd_tscm_transaction_unregister(tscm
);
93 snd_tscm_stream_destroy_duplex(tscm
);
95 fw_unit_put(tscm
->unit
);
97 mutex_destroy(&tscm
->mutex
);
100 static int snd_tscm_probe(struct fw_unit
*unit
,
101 const struct ieee1394_device_id
*entry
)
103 struct snd_card
*card
;
104 struct snd_tscm
*tscm
;
108 err
= snd_card_new(&unit
->device
, -1, NULL
, THIS_MODULE
,
109 sizeof(struct snd_tscm
), &card
);
112 card
->private_free
= tscm_card_free
;
114 /* initialize myself */
115 tscm
= card
->private_data
;
117 tscm
->unit
= fw_unit_get(unit
);
119 mutex_init(&tscm
->mutex
);
120 spin_lock_init(&tscm
->lock
);
121 init_waitqueue_head(&tscm
->hwdep_wait
);
123 err
= identify_model(tscm
);
127 snd_tscm_proc_init(tscm
);
129 err
= snd_tscm_stream_init_duplex(tscm
);
133 err
= snd_tscm_create_pcm_devices(tscm
);
137 err
= snd_tscm_transaction_register(tscm
);
141 err
= snd_tscm_create_midi_devices(tscm
);
145 err
= snd_tscm_create_hwdep_device(tscm
);
149 err
= snd_card_register(card
);
153 dev_set_drvdata(&unit
->device
, tscm
);
161 static void snd_tscm_update(struct fw_unit
*unit
)
163 struct snd_tscm
*tscm
= dev_get_drvdata(&unit
->device
);
165 snd_tscm_transaction_reregister(tscm
);
167 mutex_lock(&tscm
->mutex
);
168 snd_tscm_stream_update_duplex(tscm
);
169 mutex_unlock(&tscm
->mutex
);
172 static void snd_tscm_remove(struct fw_unit
*unit
)
174 struct snd_tscm
*tscm
= dev_get_drvdata(&unit
->device
);
176 /* No need to wait for releasing card object in this context. */
177 snd_card_free_when_closed(tscm
->card
);
180 static const struct ieee1394_device_id snd_tscm_id_table
[] = {
182 .match_flags
= IEEE1394_MATCH_VENDOR_ID
|
183 IEEE1394_MATCH_SPECIFIER_ID
,
184 .vendor_id
= 0x00022e,
185 .specifier_id
= 0x00022e,
187 /* FE-08 requires reverse-engineering because it just has faders. */
190 MODULE_DEVICE_TABLE(ieee1394
, snd_tscm_id_table
);
192 static struct fw_driver tscm_driver
= {
194 .owner
= THIS_MODULE
,
195 .name
= "snd-firewire-tascam",
198 .probe
= snd_tscm_probe
,
199 .update
= snd_tscm_update
,
200 .remove
= snd_tscm_remove
,
201 .id_table
= snd_tscm_id_table
,
204 static int __init
snd_tscm_init(void)
206 return driver_register(&tscm_driver
.driver
);
209 static void __exit
snd_tscm_exit(void)
211 driver_unregister(&tscm_driver
.driver
);
214 module_init(snd_tscm_init
);
215 module_exit(snd_tscm_exit
);