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Commit eb9fecb9 authored by Ruslan Bilovol's avatar Ruslan Bilovol Committed by Felipe Balbi
Browse files

usb: gadget: f_uac2: split out audio core 



Abstract the peripheral side ALSA sound card code from
the f_uac2 function into a component that can be called
by various functions, so the various flavors can be split
apart and selectively reused.

Visible changes:
 - add uac_params structure to pass audio paramteres for
   g_audio_setup
 - make ALSA sound card's name configurable
 - add [in/out]_ep_maxpsize
 - allocate snd_uac_chip structure during g_audio_setup
 - add u_audio_[start/stop]_[capture/playback] functions

Signed-off-by: default avatarRuslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 7158b57a

drivers/usb/gadget/Kconfig

+4 −0
Original line number Original line Diff line number Diff line
@@ -158,6 +158,9 @@ config USB_U_SERIAL 
config USB_U_ETHER

config USB_U_ETHER

	tristate

	tristate





config USB_U_AUDIO

	tristate



config USB_F_SERIAL

config USB_F_SERIAL

	tristate

	tristate
@@ -381,6 +384,7 @@ config USB_CONFIGFS_F_UAC2 
	depends on SND

	depends on SND

	select USB_LIBCOMPOSITE

	select USB_LIBCOMPOSITE

	select SND_PCM

	select SND_PCM

	select USB_U_AUDIO

	select USB_F_UAC2

	select USB_F_UAC2

	help

	help

	  This Audio function is compatible with USB Audio Class

	  This Audio function is compatible with USB Audio Class

drivers/usb/gadget/function/Makefile

+1 −0
Original line number Original line Diff line number Diff line
@@ -32,6 +32,7 @@ usb_f_mass_storage-y := f_mass_storage.o storage_common.o 
obj-$(CONFIG_USB_F_MASS_STORAGE)+= usb_f_mass_storage.o

obj-$(CONFIG_USB_F_MASS_STORAGE)+= usb_f_mass_storage.o

usb_f_fs-y			:= f_fs.o

usb_f_fs-y			:= f_fs.o

obj-$(CONFIG_USB_F_FS)		+= usb_f_fs.o

obj-$(CONFIG_USB_F_FS)		+= usb_f_fs.o

obj-$(CONFIG_USB_U_AUDIO)	+= u_audio.o

usb_f_uac1-y			:= f_uac1.o u_uac1.o

usb_f_uac1-y			:= f_uac1.o u_uac1.o

obj-$(CONFIG_USB_F_UAC1)	+= usb_f_uac1.o

obj-$(CONFIG_USB_F_UAC1)	+= usb_f_uac1.o

usb_f_uac2-y			:= f_uac2.o

usb_f_uac2-y			:= f_uac2.o

drivers/usb/gadget/function/f_uac2.c

+82 −636

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drivers/usb/gadget/function/u_audio.c

0 → 100644
+662 −0

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drivers/usb/gadget/function/u_audio.h

0 → 100644
+95 −0

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