1 // SPDX-License-Identifier: GPL-2.0-only
3  * tascam.c - a part of driver for TASCAM FireWire series
11 MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
16 		.name = "FW-1884",
25 		.name = "FW-1082",
34 		.name = "FW-1804",
46 	struct fw_device *fw_dev = fw_parent_device(tscm->unit);  in identify_model()
47 	const u32 *config_rom = fw_dev->config_rom;  in identify_model()
52 	if (fw_dev->config_rom_length < 30) {  in identify_model()
53 		dev_err(&tscm->unit->device,  in identify_model()
55 		return -ENODEV;  in identify_model()
58 	/* Pick up model name from certain addresses. */  in identify_model()
60 		c = config_rom[28 + i / 4] >> (24 - 8 * (i % 4));  in identify_model()
69 			tscm->spec = &model_specs[i];  in identify_model()
73 	if (tscm->spec == NULL)  in identify_model()
74 		return -ENODEV;  in identify_model()
76 	strcpy(tscm->card->driver, "FW-TASCAM");  in identify_model()
77 	strcpy(tscm->card->shortname, model);  in identify_model()
78 	strcpy(tscm->card->mixername, model);  in identify_model()
79 	snprintf(tscm->card->longname, sizeof(tscm->card->longname),  in identify_model()
81 		 fw_dev->config_rom[3], fw_dev->config_rom[4],  in identify_model()
82 		 dev_name(&tscm->unit->device), 100 << fw_dev->max_speed);  in identify_model()
89 	struct snd_tscm *tscm = card->private_data;  in tscm_card_free()
100 	err = snd_card_new(&tscm->unit->device, -1, NULL, THIS_MODULE, 0,  in do_registration()
101 			   &tscm->card);  in do_registration()
104 	tscm->card->private_free = tscm_card_free;  in do_registration()
105 	tscm->card->private_data = tscm;  in do_registration()
133 	err = snd_card_register(tscm->card);  in do_registration()
137 	tscm->registered = true;  in do_registration()
141 	snd_card_free(tscm->card);  in do_registration()
142 	dev_info(&tscm->unit->device,  in do_registration()
146 static int snd_tscm_probe(struct fw_unit *unit,  in snd_tscm_probe()  argument
152 	tscm = devm_kzalloc(&unit->device, sizeof(struct snd_tscm), GFP_KERNEL);  in snd_tscm_probe()
154 		return -ENOMEM;  in snd_tscm_probe()
155 	tscm->unit = fw_unit_get(unit);  in snd_tscm_probe()
156 	dev_set_drvdata(&unit->device, tscm);  in snd_tscm_probe()
158 	mutex_init(&tscm->mutex);  in snd_tscm_probe()
159 	spin_lock_init(&tscm->lock);  in snd_tscm_probe()
160 	init_waitqueue_head(&tscm->hwdep_wait);  in snd_tscm_probe()
163 	INIT_DEFERRABLE_WORK(&tscm->dwork, do_registration);  in snd_tscm_probe()
164 	snd_fw_schedule_registration(unit, &tscm->dwork);  in snd_tscm_probe()
169 static void snd_tscm_update(struct fw_unit *unit)  in snd_tscm_update()  argument
171 	struct snd_tscm *tscm = dev_get_drvdata(&unit->device);  in snd_tscm_update()
174 	if (!tscm->registered)  in snd_tscm_update()
175 		snd_fw_schedule_registration(unit, &tscm->dwork);  in snd_tscm_update()
183 	if (tscm->registered) {  in snd_tscm_update()
184 		mutex_lock(&tscm->mutex);  in snd_tscm_update()
186 		mutex_unlock(&tscm->mutex);  in snd_tscm_update()
190 static void snd_tscm_remove(struct fw_unit *unit)  in snd_tscm_remove()  argument
192 	struct snd_tscm *tscm = dev_get_drvdata(&unit->device);  in snd_tscm_remove()
199 	cancel_delayed_work_sync(&tscm->dwork);  in snd_tscm_remove()
201 	if (tscm->registered) {  in snd_tscm_remove()
203 		snd_card_free(tscm->card);  in snd_tscm_remove()
206 	mutex_destroy(&tscm->mutex);  in snd_tscm_remove()
207 	fw_unit_put(tscm->unit);  in snd_tscm_remove()
211 	// Tascam, FW-1884.
220 	// Tascam, FE-8 (.version = 0x800001)
221 	// This kernel module doesn't support FE-8 because the most of features
227 	// Tascam, FW-1082.
236 	// Tascam, FW-1804.