diff options
Diffstat (limited to 'kernel/sound/usb/usx2y/usb_stream.h')
| -rw-r--r-- | kernel/sound/usb/usx2y/usb_stream.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/kernel/sound/usb/usx2y/usb_stream.h b/kernel/sound/usb/usx2y/usb_stream.h new file mode 100644 index 000000000..90369001e --- /dev/null +++ b/kernel/sound/usb/usx2y/usb_stream.h @@ -0,0 +1,42 @@ +#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 */ |