mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-21 18:14:48 +08:00
5da7f924a4
The user-space API definition for usb_stream stuff should be moved to include/uapi/sound to be exposed publicly. While we're at it, add the missing ifdef guard for double inclusion, too. Signed-off-by: Takashi Iwai <tiwai@suse.de>
43 lines
990 B
C
43 lines
990 B
C
#ifndef __USB_STREAM_H
|
|
#define __USB_STREAM_H
|
|
|
|
#include <uapi/sound/usb_stream.h>
|
|
|
|
#define USB_STREAM_NURBS 4
|
|
#define USB_STREAM_URBDEPTH 4
|
|
|
|
struct usb_stream_kernel {
|
|
struct usb_stream *s;
|
|
|
|
void *write_page;
|
|
|
|
unsigned n_o_ps;
|
|
|
|
struct urb *inurb[USB_STREAM_NURBS];
|
|
struct urb *idle_inurb;
|
|
struct urb *completed_inurb;
|
|
struct urb *outurb[USB_STREAM_NURBS];
|
|
struct urb *idle_outurb;
|
|
struct urb *completed_outurb;
|
|
struct urb *i_urb;
|
|
|
|
int iso_frame_balance;
|
|
|
|
wait_queue_head_t sleep;
|
|
|
|
unsigned out_phase;
|
|
unsigned out_phase_peeked;
|
|
unsigned freqn;
|
|
};
|
|
|
|
struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk,
|
|
struct usb_device *dev,
|
|
unsigned in_endpoint, unsigned out_endpoint,
|
|
unsigned sample_rate, unsigned use_packsize,
|
|
unsigned period_frames, unsigned frame_size);
|
|
void usb_stream_free(struct usb_stream_kernel *);
|
|
int usb_stream_start(struct usb_stream_kernel *);
|
|
void usb_stream_stop(struct usb_stream_kernel *);
|
|
|
|
#endif /* __USB_STREAM_H */
|