Merge tag 'for-5.11/dm-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/device...
[linux-2.6-microblaze.git] / sound / usb / endpoint.h
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_get_endpoint(struct snd_usb_audio *chip,
9                                               int ep_num);
10
11 int snd_usb_add_endpoint(struct snd_usb_audio *chip, int ep_num, int type);
12
13 struct snd_usb_endpoint *
14 snd_usb_endpoint_open(struct snd_usb_audio *chip,
15                       const struct audioformat *fp,
16                       const struct snd_pcm_hw_params *params,
17                       bool is_sync_ep);
18 void snd_usb_endpoint_close(struct snd_usb_audio *chip,
19                             struct snd_usb_endpoint *ep);
20 int snd_usb_endpoint_configure(struct snd_usb_audio *chip,
21                                struct snd_usb_endpoint *ep);
22 void snd_usb_endpoint_suspend(struct snd_usb_endpoint *ep);
23
24 bool snd_usb_endpoint_compatible(struct snd_usb_audio *chip,
25                                  struct snd_usb_endpoint *ep,
26                                  const struct audioformat *fp,
27                                  const struct snd_pcm_hw_params *params);
28
29 void snd_usb_endpoint_set_sync(struct snd_usb_audio *chip,
30                                struct snd_usb_endpoint *data_ep,
31                                struct snd_usb_endpoint *sync_ep);
32 void snd_usb_endpoint_set_callback(struct snd_usb_endpoint *ep,
33                                    void (*prepare)(struct snd_usb_substream *subs,
34                                                    struct urb *urb),
35                                    void (*retire)(struct snd_usb_substream *subs,
36                                                   struct urb *urb),
37                                    struct snd_usb_substream *data_subs);
38
39 int snd_usb_endpoint_start(struct snd_usb_endpoint *ep);
40 void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep);
41 void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep);
42 void snd_usb_endpoint_suspend(struct snd_usb_endpoint *ep);
43 int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
44 void snd_usb_endpoint_release(struct snd_usb_endpoint *ep);
45 void snd_usb_endpoint_free(struct snd_usb_endpoint *ep);
46
47 int snd_usb_endpoint_implicit_feedback_sink(struct snd_usb_endpoint *ep);
48 int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint *ep,
49                                       struct snd_urb_ctx *ctx, int idx);
50
51 #endif /* __USBAUDIO_ENDPOINT_H */