The delayed registration of sound card instance brings less benefit than
complication of kobject management. This commit ceases from it.
Signed-off-by: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>
---
sound/firewire/dice/dice.c | 138 +++++++++++++------------------------
sound/firewire/dice/dice.h | 4 --
2 files changed, 48 insertions(+), 94 deletions(-)
diff --git a/sound/firewire/dice/dice.c b/sound/firewire/dice/dice.c
index 239d164b0eea..f75902bc8e74 100644
--- a/sound/firewire/dice/dice.c
+++ b/sound/firewire/dice/dice.c
@@ -135,22 +135,51 @@ static void dice_card_free(struct snd_card *card)
snd_dice_stream_destroy_duplex(dice);
snd_dice_transaction_destroy(dice);
+
+ mutex_destroy(&dice->mutex);
+ fw_unit_put(dice->unit);
}
-static void do_registration(struct work_struct *work)
+static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *entry)
{
- struct snd_dice *dice = container_of(work, struct snd_dice, dwork.work);
+ struct snd_card *card;
+ struct snd_dice *dice;
+ snd_dice_detect_formats_t detect_formats;
int err;
- if (dice->registered)
- return;
+ if (!entry->driver_data && entry->vendor_id != OUI_SSL) {
+ err = check_dice_category(unit);
+ if (err < 0)
+ return -ENODEV;
+ }
- err = snd_card_new(&dice->unit->device, -1, NULL, THIS_MODULE, 0,
- &dice->card);
+ err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE, sizeof(*dice), &card);
if (err < 0)
- return;
- dice->card->private_free = dice_card_free;
- dice->card->private_data = dice;
+ return err;
+ card->private_free = dice_card_free;
+
+ dice = card->private_data;
+ dice->unit = fw_unit_get(unit);
+ dev_set_drvdata(&unit->device, dice);
+ dice->card = card;
+
+ if (!entry->driver_data)
+ detect_formats = snd_dice_stream_detect_current_formats;
+ else
+ detect_formats = (snd_dice_detect_formats_t)entry->driver_data;
+
+ // Below models are compliant to IEC 61883-1/6 and have no quirk at high sampling transfer
+ // frequency.
+ // * Avid M-Box 3 Pro
+ // * M-Audio Profire 610
+ // * M-Audio Profire 2626
+ if (entry->vendor_id == OUI_MAUDIO || entry->vendor_id == OUI_AVID)
+ dice->disable_double_pcm_frames = true;
+
+ spin_lock_init(&dice->lock);
+ mutex_init(&dice->mutex);
+ init_completion(&dice->clock_accepted);
+ init_waitqueue_head(&dice->hwdep_wait);
err = snd_dice_transaction_init(dice);
if (err < 0)
@@ -162,7 +191,7 @@ static void do_registration(struct work_struct *work)
dice_card_strings(dice);
- err = dice->detect_formats(dice);
+ err = detect_formats(dice);
if (err < 0)
goto error;
@@ -184,105 +213,34 @@ static void do_registration(struct work_struct *work)
if (err < 0)
goto error;
- err = snd_card_register(dice->card);
+ err = snd_card_register(card);
if (err < 0)
goto error;
- dice->registered = true;
-
- return;
-error:
- snd_card_free(dice->card);
- dev_info(&dice->unit->device,
- "Sound card registration failed: %d\n", err);
-}
-
-static int dice_probe(struct fw_unit *unit,
- const struct ieee1394_device_id *entry)
-{
- struct snd_dice *dice;
- int err;
-
- if (!entry->driver_data && entry->vendor_id != OUI_SSL) {
- err = check_dice_category(unit);
- if (err < 0)
- return -ENODEV;
- }
-
- /* Allocate this independent of sound card instance. */
- dice = devm_kzalloc(&unit->device, sizeof(struct snd_dice), GFP_KERNEL);
- if (!dice)
- return -ENOMEM;
- dice->unit = fw_unit_get(unit);
- dev_set_drvdata(&unit->device, dice);
-
- if (!entry->driver_data) {
- dice->detect_formats = snd_dice_stream_detect_current_formats;
- } else {
- dice->detect_formats =
- (snd_dice_detect_formats_t)entry->driver_data;
- }
-
- // Below models are compliant to IEC 61883-1/6 and have no quirk at high sampling transfer
- // frequency.
- // * Avid M-Box 3 Pro
- // * M-Audio Profire 610
- // * M-Audio Profire 2626
- if (entry->vendor_id == OUI_MAUDIO || entry->vendor_id == OUI_AVID)
- dice->disable_double_pcm_frames = true;
-
- spin_lock_init(&dice->lock);
- mutex_init(&dice->mutex);
- init_completion(&dice->clock_accepted);
- init_waitqueue_head(&dice->hwdep_wait);
-
- /* Allocate and register this sound card later. */
- INIT_DEFERRABLE_WORK(&dice->dwork, do_registration);
- snd_fw_schedule_registration(unit, &dice->dwork);
-
return 0;
+error:
+ snd_card_free(card);
+ return err;
}
static void dice_remove(struct fw_unit *unit)
{
struct snd_dice *dice = dev_get_drvdata(&unit->device);
- /*
- * Confirm to stop the work for registration before the sound card is
- * going to be released. The work is not scheduled again because bus
- * reset handler is not called anymore.
- */
- cancel_delayed_work_sync(&dice->dwork);
-
- if (dice->registered) {
- // Block till all of ALSA character devices are released.
- snd_card_free(dice->card);
- }
-
- mutex_destroy(&dice->mutex);
- fw_unit_put(dice->unit);
+ // Block till all of ALSA character devices are released.
+ snd_card_free(dice->card);
}
static void dice_bus_reset(struct fw_unit *unit)
{
struct snd_dice *dice = dev_get_drvdata(&unit->device);
- /* Postpone a workqueue for deferred registration. */
- if (!dice->registered)
- snd_fw_schedule_registration(unit, &dice->dwork);
-
/* The handler address register becomes initialized. */
snd_dice_transaction_reinit(dice);
- /*
- * After registration, userspace can start packet streaming, then this
- * code block works fine.
- */
- if (dice->registered) {
- mutex_lock(&dice->mutex);
- snd_dice_stream_update_duplex(dice);
- mutex_unlock(&dice->mutex);
- }
+ mutex_lock(&dice->mutex);
+ snd_dice_stream_update_duplex(dice);
+ mutex_unlock(&dice->mutex);
}
#define DICE_INTERFACE 0x000001
diff --git a/sound/firewire/dice/dice.h b/sound/firewire/dice/dice.h
index 3c967d1b3605..fd440cc625f9 100644
--- a/sound/firewire/dice/dice.h
+++ b/sound/firewire/dice/dice.h
@@ -78,9 +78,6 @@ struct snd_dice {
spinlock_t lock;
struct mutex mutex;
- bool registered;
- struct delayed_work dwork;
-
/* Offsets for sub-addresses */
unsigned int global_offset;
unsigned int rx_offset;
@@ -93,7 +90,6 @@ struct snd_dice {
unsigned int rx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
unsigned int tx_midi_ports[MAX_STREAMS];
unsigned int rx_midi_ports[MAX_STREAMS];
- snd_dice_detect_formats_t detect_formats;
struct fw_address_handler notification_handler;
int owner_generation;
--
2.27.0
