static int oxfw_probe(struct fw_unit *unit,
const struct ieee1394_device_id *id)
{
struct snd_card *card;
struct snd_oxfw *oxfw;
int err;
if ((id->vendor_id == VENDOR_LOUD) && !detect_loud_models(unit))
return -ENODEV;
err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE,
sizeof(*oxfw), &card);
if (err < 0)
return err;
card->private_free = oxfw_card_free;
oxfw = card->private_data;
oxfw->card = card;
mutex_init(&oxfw->mutex);
oxfw->unit = fw_unit_get(unit);
oxfw->device_info = (const struct device_info *)id->driver_data;
spin_lock_init(&oxfw->lock);
init_waitqueue_head(&oxfw->hwdep_wait);
err = snd_oxfw_stream_discover(oxfw);
if (err < 0)
goto error;
err = name_card(oxfw);
if (err < 0)
goto error;
err = snd_oxfw_create_pcm(oxfw);
if (err < 0)
goto error;
if (oxfw->device_info) {
err = snd_oxfw_create_mixer(oxfw);
if (err < 0)
goto error;
}
snd_oxfw_proc_init(oxfw);
err = snd_oxfw_create_midi(oxfw);
if (err < 0)
goto error;
err = snd_oxfw_create_hwdep(oxfw);
if (err < 0)
goto error;
err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->rx_stream);
if (err < 0)
goto error;
if (oxfw->has_output) {
err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->tx_stream);
if (err < 0)
goto error;
}
err = snd_card_register(card);
if (err < 0) {
snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
if (oxfw->has_output)
snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
goto error;
}
dev_set_drvdata(&unit->device, oxfw);
return 0;
error:
snd_card_free(card);
return err;
}
static void do_registration(struct work_struct *work)
{
struct snd_oxfw *oxfw = container_of(work, struct snd_oxfw, dwork.work);
int err;
if (oxfw->registered)
return;
err = snd_card_new(&oxfw->unit->device, -1, NULL, THIS_MODULE, 0,
&oxfw->card);
if (err < 0)
return;
err = name_card(oxfw);
if (err < 0)
goto error;
err = detect_quirks(oxfw);
if (err < 0)
goto error;
err = snd_oxfw_stream_discover(oxfw);
if (err < 0)
goto error;
err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->rx_stream);
if (err < 0)
goto error;
if (oxfw->has_output) {
err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->tx_stream);
if (err < 0)
goto error;
}
err = snd_oxfw_create_pcm(oxfw);
if (err < 0)
goto error;
snd_oxfw_proc_init(oxfw);
err = snd_oxfw_create_midi(oxfw);
if (err < 0)
goto error;
err = snd_oxfw_create_hwdep(oxfw);
if (err < 0)
goto error;
err = snd_card_register(oxfw->card);
if (err < 0)
goto error;
/*
* After registered, oxfw instance can be released corresponding to
* releasing the sound card instance.
*/
oxfw->card->private_free = oxfw_card_free;
oxfw->card->private_data = oxfw;
oxfw->registered = true;
return;
error:
snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
if (oxfw->has_output)
snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
snd_card_free(oxfw->card);
dev_info(&oxfw->unit->device,
"Sound card registration failed: %d\n", err);
}