diff options
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/caiaq/caiaq-device.c | 6 | ||||
| -rw-r--r-- | sound/usb/usbaudio.c | 38 | ||||
| -rw-r--r-- | sound/usb/usbmidi.c | 19 |
3 files changed, 57 insertions, 6 deletions
diff --git a/sound/usb/caiaq/caiaq-device.c b/sound/usb/caiaq/caiaq-device.c index 58d25e4e7d6c..7c44a2c7f963 100644 --- a/sound/usb/caiaq/caiaq-device.c +++ b/sound/usb/caiaq/caiaq-device.c @@ -245,7 +245,7 @@ int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev, tmp, sizeof(tmp)); } -static void setup_card(struct snd_usb_caiaqdev *dev) +static void __devinit setup_card(struct snd_usb_caiaqdev *dev) { int ret; char val[4]; @@ -359,7 +359,7 @@ static struct snd_card* create_card(struct usb_device* usb_dev) return card; } -static int init_card(struct snd_usb_caiaqdev *dev) +static int __devinit init_card(struct snd_usb_caiaqdev *dev) { char *c; struct usb_device *usb_dev = dev->chip.dev; @@ -428,7 +428,7 @@ static int init_card(struct snd_usb_caiaqdev *dev) return 0; } -static int snd_probe(struct usb_interface *intf, +static int __devinit snd_probe(struct usb_interface *intf, const struct usb_device_id *id) { int ret; diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c index 8fa935665702..675672f313be 100644 --- a/sound/usb/usbaudio.c +++ b/sound/usb/usbaudio.c @@ -479,6 +479,33 @@ static int retire_playback_sync_urb_hs(struct snd_usb_substream *subs, return 0; } +/* + * process after E-Mu 0202/0404 high speed playback sync complete + * + * These devices return the number of samples per packet instead of the number + * of samples per microframe. + */ +static int retire_playback_sync_urb_hs_emu(struct snd_usb_substream *subs, + struct snd_pcm_runtime *runtime, + struct urb *urb) +{ + unsigned int f; + unsigned long flags; + + if (urb->iso_frame_desc[0].status == 0 && + urb->iso_frame_desc[0].actual_length == 4) { + f = combine_quad((u8*)urb->transfer_buffer) & 0x0fffffff; + f >>= subs->datainterval; + if (f >= subs->freqn - subs->freqn / 8 && f <= subs->freqmax) { + spin_lock_irqsave(&subs->lock, flags); + subs->freqm = f; + spin_unlock_irqrestore(&subs->lock, flags); + } + } + + return 0; +} + /* determine the number of frames in the next packet */ static int snd_usb_audio_next_packet_size(struct snd_usb_substream *subs) { @@ -2219,10 +2246,17 @@ static void init_substream(struct snd_usb_stream *as, int stream, struct audiofo subs->stream = as; subs->direction = stream; subs->dev = as->chip->dev; - if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) + if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) { subs->ops = audio_urb_ops[stream]; - else + } else { subs->ops = audio_urb_ops_high_speed[stream]; + switch (as->chip->usb_id) { + case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */ + case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */ + subs->ops.retire_sync = retire_playback_sync_urb_hs_emu; + break; + } + } snd_pcm_set_ops(as->pcm, stream, stream == SNDRV_PCM_STREAM_PLAYBACK ? &snd_usb_playback_ops : &snd_usb_capture_ops); diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c index 750e929d5870..6676a177c99e 100644 --- a/sound/usb/usbmidi.c +++ b/sound/usb/usbmidi.c @@ -104,12 +104,14 @@ struct snd_usb_midi { struct usb_protocol_ops* usb_protocol_ops; struct list_head list; struct timer_list error_timer; + spinlock_t disc_lock; struct snd_usb_midi_endpoint { struct snd_usb_midi_out_endpoint *out; struct snd_usb_midi_in_endpoint *in; } endpoints[MIDI_MAX_ENDPOINTS]; unsigned long input_triggered; + unsigned char disconnected; }; struct snd_usb_midi_out_endpoint { @@ -306,6 +308,11 @@ static void snd_usbmidi_error_timer(unsigned long data) struct snd_usb_midi *umidi = (struct snd_usb_midi *)data; int i; + spin_lock(&umidi->disc_lock); + if (umidi->disconnected) { + spin_unlock(&umidi->disc_lock); + return; + } for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { struct snd_usb_midi_in_endpoint *in = umidi->endpoints[i].in; if (in && in->error_resubmit) { @@ -316,6 +323,7 @@ static void snd_usbmidi_error_timer(unsigned long data) if (umidi->endpoints[i].out) snd_usbmidi_do_output(umidi->endpoints[i].out); } + spin_unlock(&umidi->disc_lock); } /* helper function to send static data that may not DMA-able */ @@ -1049,7 +1057,14 @@ void snd_usbmidi_disconnect(struct list_head* p) int i; umidi = list_entry(p, struct snd_usb_midi, list); - del_timer_sync(&umidi->error_timer); + /* + * an URB's completion handler may start the timer and + * a timer may submit an URB. To reliably break the cycle + * a flag under lock must be used + */ + spin_lock_irq(&umidi->disc_lock); + umidi->disconnected = 1; + spin_unlock_irq(&umidi->disc_lock); for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i]; if (ep->out) @@ -1062,6 +1077,7 @@ void snd_usbmidi_disconnect(struct list_head* p) if (ep->in) usb_kill_urb(ep->in->urb); } + del_timer_sync(&umidi->error_timer); } static void snd_usbmidi_rawmidi_free(struct snd_rawmidi *rmidi) @@ -1685,6 +1701,7 @@ int snd_usb_create_midi_interface(struct snd_usb_audio* chip, umidi->quirk = quirk; umidi->usb_protocol_ops = &snd_usbmidi_standard_ops; init_timer(&umidi->error_timer); + spin_lock_init(&umidi->disc_lock); umidi->error_timer.function = snd_usbmidi_error_timer; umidi->error_timer.data = (unsigned long)umidi; |