| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __USBAUDIO_ENDPOINT_H |
| 3 | #define __USBAUDIO_ENDPOINT_H |
| 4 | |
| 5 | #define SND_USB_ENDPOINT_TYPE_DATA 0 |
| 6 | #define SND_USB_ENDPOINT_TYPE_SYNC 1 |
| 7 | |
| 8 | struct snd_usb_endpoint *snd_usb_add_endpoint(struct snd_usb_audio *chip, |
| 9 | struct usb_host_interface *alts, |
| 10 | int ep_num, int direction, int type); |
| 11 | |
| 12 | int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep, |
| 13 | snd_pcm_format_t pcm_format, |
| 14 | unsigned int channels, |
| 15 | unsigned int period_bytes, |
| 16 | unsigned int period_frames, |
| 17 | unsigned int buffer_periods, |
| 18 | unsigned int rate, |
| 19 | struct audioformat *fmt, |
| 20 | struct snd_usb_endpoint *sync_ep); |
| 21 | |
| 22 | int snd_usb_endpoint_start(struct snd_usb_endpoint *ep); |
| 23 | void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep); |
| 24 | void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep); |
| 25 | int snd_usb_endpoint_activate(struct snd_usb_endpoint *ep); |
| 26 | void snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep); |
| 27 | void snd_usb_endpoint_release(struct snd_usb_endpoint *ep); |
| 28 | void snd_usb_endpoint_free(struct snd_usb_endpoint *ep); |
| 29 | |
| 30 | int snd_usb_endpoint_implicit_feedback_sink(struct snd_usb_endpoint *ep); |
| Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 31 | int snd_usb_endpoint_slave_next_packet_size(struct snd_usb_endpoint *ep); |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 32 | int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint *ep); |
| 33 | |
| 34 | void snd_usb_handle_sync_urb(struct snd_usb_endpoint *ep, |
| 35 | struct snd_usb_endpoint *sender, |
| 36 | const struct urb *urb); |
| 37 | |
| 38 | #endif /* __USBAUDIO_ENDPOINT_H */ |