1 #ifndef __USBAUDIO_ENDPOINT_H
2 #define __USBAUDIO_ENDPOINT_H
4 #define SND_USB_ENDPOINT_TYPE_DATA 0
5 #define SND_USB_ENDPOINT_TYPE_SYNC 1
7 struct snd_usb_endpoint
*snd_usb_add_endpoint(struct snd_usb_audio
*chip
,
8 struct usb_host_interface
*alts
,
9 int ep_num
, int direction
, int type
);
11 int snd_usb_endpoint_set_params(struct snd_usb_endpoint
*ep
,
12 snd_pcm_format_t pcm_format
,
13 unsigned int channels
,
14 unsigned int period_bytes
,
15 unsigned int period_frames
,
16 unsigned int buffer_periods
,
18 struct audioformat
*fmt
,
19 struct snd_usb_endpoint
*sync_ep
);
21 int snd_usb_endpoint_start(struct snd_usb_endpoint
*ep
, bool can_sleep
);
22 void snd_usb_endpoint_stop(struct snd_usb_endpoint
*ep
);
23 void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint
*ep
);
24 int snd_usb_endpoint_activate(struct snd_usb_endpoint
*ep
);
25 void snd_usb_endpoint_deactivate(struct snd_usb_endpoint
*ep
);
26 void snd_usb_endpoint_free(struct list_head
*head
);
28 int snd_usb_endpoint_implicit_feedback_sink(struct snd_usb_endpoint
*ep
);
29 int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint
*ep
);
31 void snd_usb_handle_sync_urb(struct snd_usb_endpoint
*ep
,
32 struct snd_usb_endpoint
*sender
,
33 const struct urb
*urb
);
35 #endif /* __USBAUDIO_ENDPOINT_H */