shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 11:26:02 +09:00
Code Issues Packages Projects Releases Wiki Activity

FROMGIT: usb: gadget: u_audio: Add suspend call

Browse Source 
Add exported method u_audio_suspend which sets stream status to
inactive and sends notifications. The method does not free any
resources.

Change-Id: I09c9b18389f7a8970c5d5386ea08b88b3a099758
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20220121155308.48794-9-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: William Wu <william.wu@rock-chips.com>
(cherry picked from commit 62385cf158
 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-next)
This commit is contained in:
Pavel Hofman
2022-01-21 16:53:06 +01:00
committed by Tao Huang
parent e5ea5b99b7
commit 7559956d2c
2 changed files with 11 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/usb/gadget/function/u_audio.c
View File

@@ -757,6 +757,15 @@ void u_audio_stop_playback(struct g_audio *audio_dev)
}
EXPORT_SYMBOL_GPL(u_audio_stop_playback);
void u_audio_suspend(struct g_audio *audio_dev)
{
struct snd_uac_chip *uac = audio_dev->uac;
set_active(&uac->p_prm, false);
set_active(&uac->c_prm, false);
}
EXPORT_SYMBOL_GPL(u_audio_suspend);
int u_audio_get_volume(struct g_audio *audio_dev, int playback, s16 *val)
{
struct snd_uac_chip *uac = audio_dev->uac;

2
drivers/usb/gadget/function/u_audio.h
View File

@@ -130,4 +130,6 @@ int u_audio_set_volume(struct g_audio *g_audio, int playback, s16 val);
int u_audio_get_mute(struct g_audio *g_audio, int playback, int *val);
int u_audio_set_mute(struct g_audio *g_audio, int playback, int val);
void u_audio_suspend(struct g_audio *g_audio);
#endif /* __U_AUDIO_H */