diff options
| -rw-r--r-- | sound/usb/card.c | 9 | ||||
| -rw-r--r-- | sound/usb/midi.c | 28 | ||||
| -rw-r--r-- | sound/usb/midi.h | 2 |
3 files changed, 39 insertions, 0 deletions
diff --git a/sound/usb/card.c b/sound/usb/card.c index a09e5f3519e3..7ecd0e8a5c51 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -680,6 +680,7 @@ static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message) struct snd_usb_audio *chip = usb_get_intfdata(intf); struct snd_usb_stream *as; struct usb_mixer_interface *mixer; + struct list_head *p; if (chip == (void *)-1L) return 0; @@ -692,6 +693,9 @@ static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message) as->substream[0].need_setup_ep = as->substream[1].need_setup_ep = true; } + list_for_each(p, &chip->midi_list) { + snd_usbmidi_suspend(p); + } } } else { /* @@ -713,6 +717,7 @@ static int __usb_audio_resume(struct usb_interface *intf, bool reset_resume) { struct snd_usb_audio *chip = usb_get_intfdata(intf); struct usb_mixer_interface *mixer; + struct list_head *p; int err = 0; if (chip == (void *)-1L) @@ -731,6 +736,10 @@ static int __usb_audio_resume(struct usb_interface *intf, bool reset_resume) goto err_out; } + list_for_each(p, &chip->midi_list) { + snd_usbmidi_resume(p); + } + if (!chip->autosuspended) snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); chip->autosuspended = 0; diff --git a/sound/usb/midi.c b/sound/usb/midi.c index 9da74d2e8eee..9a4e82cf4ef9 100644 --- a/sound/usb/midi.c +++ b/sound/usb/midi.c @@ -2187,6 +2187,34 @@ void snd_usbmidi_input_start(struct list_head* p) EXPORT_SYMBOL(snd_usbmidi_input_start); /* + * Prepare for suspend. Typically called from the USB suspend callback. + */ +void snd_usbmidi_suspend(struct list_head *p) +{ + struct snd_usb_midi *umidi; + + umidi = list_entry(p, struct snd_usb_midi, list); + mutex_lock(&umidi->mutex); + snd_usbmidi_input_stop(p); + mutex_unlock(&umidi->mutex); +} +EXPORT_SYMBOL(snd_usbmidi_suspend); + +/* + * Resume. Typically called from the USB resume callback. + */ +void snd_usbmidi_resume(struct list_head *p) +{ + struct snd_usb_midi *umidi; + + umidi = list_entry(p, struct snd_usb_midi, list); + mutex_lock(&umidi->mutex); + snd_usbmidi_input_start(p); + mutex_unlock(&umidi->mutex); +} +EXPORT_SYMBOL(snd_usbmidi_resume); + +/* * Creates and registers everything needed for a MIDI streaming interface. */ int snd_usbmidi_create(struct snd_card *card, diff --git a/sound/usb/midi.h b/sound/usb/midi.h index 2fca80b744c0..46e5b65e81e7 100644 --- a/sound/usb/midi.h +++ b/sound/usb/midi.h @@ -46,5 +46,7 @@ int snd_usbmidi_create(struct snd_card *card, void snd_usbmidi_input_stop(struct list_head* p); void snd_usbmidi_input_start(struct list_head* p); void snd_usbmidi_disconnect(struct list_head *p); +void snd_usbmidi_suspend(struct list_head *p); +void snd_usbmidi_resume(struct list_head *p); #endif /* __USBMIDI_H */ |