39 lines
1.4 KiB
C
39 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __USBAUDIO_ENDPOINT_H
|
|
#define __USBAUDIO_ENDPOINT_H
|
|
|
|
#define SND_USB_ENDPOINT_TYPE_DATA 0
|
|
#define SND_USB_ENDPOINT_TYPE_SYNC 1
|
|
|
|
struct snd_usb_endpoint *snd_usb_add_endpoint(struct snd_usb_audio *chip,
|
|
struct usb_host_interface *alts,
|
|
int ep_num, int direction, int type);
|
|
|
|
int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
|
|
snd_pcm_format_t pcm_format,
|
|
unsigned int channels,
|
|
unsigned int period_bytes,
|
|
unsigned int period_frames,
|
|
unsigned int buffer_periods,
|
|
unsigned int rate,
|
|
struct audioformat *fmt,
|
|
struct snd_usb_endpoint *sync_ep);
|
|
|
|
int snd_usb_endpoint_start(struct snd_usb_endpoint *ep);
|
|
void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep);
|
|
void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep);
|
|
int snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
|
|
void snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
|
|
void snd_usb_endpoint_release(struct snd_usb_endpoint *ep);
|
|
void snd_usb_endpoint_free(struct snd_usb_endpoint *ep);
|
|
|
|
int snd_usb_endpoint_implicit_feedback_sink(struct snd_usb_endpoint *ep);
|
|
int snd_usb_endpoint_slave_next_packet_size(struct snd_usb_endpoint *ep);
|
|
int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint *ep);
|
|
|
|
void snd_usb_handle_sync_urb(struct snd_usb_endpoint *ep,
|
|
struct snd_usb_endpoint *sender,
|
|
const struct urb *urb);
|
|
|
|
#endif /* __USBAUDIO_ENDPOINT_H */
|