| /* 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_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 */ |