pcm.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __USBAUDIO_PCM_H
 3#define __USBAUDIO_PCM_H
 4
 5void snd_usb_set_pcm_ops(struct snd_pcm *pcm, int stream);
 6int snd_usb_pcm_suspend(struct snd_usb_stream *as);
 7int snd_usb_pcm_resume(struct snd_usb_stream *as);
 8
 9bool snd_usb_pcm_has_fixed_rate(struct snd_usb_substream *as);
10
11int snd_usb_init_pitch(struct snd_usb_audio *chip,
12		       const struct audioformat *fmt);
13void snd_usb_preallocate_buffer(struct snd_usb_substream *subs);
14
15int snd_usb_audioformat_set_sync_ep(struct snd_usb_audio *chip,
16				    struct audioformat *fmt);
17
18const struct audioformat *
19snd_usb_find_format(struct list_head *fmt_list_head, snd_pcm_format_t format,
20		    unsigned int rate, unsigned int channels, bool strict_match,
21		    struct snd_usb_substream *subs);
22const struct audioformat *
23snd_usb_find_substream_format(struct snd_usb_substream *subs,
24			      const struct snd_pcm_hw_params *params);
25
26int snd_usb_hw_params(struct snd_usb_substream *subs,
27		      struct snd_pcm_hw_params *hw_params);
28int snd_usb_hw_free(struct snd_usb_substream *subs);
29#endif /* __USBAUDIO_PCM_H */