edcd3633e7
With the previous commit that added the new streaming model, all endpoint and streaming related code is now in endpoint.c, and pcm.c only acts as a wrapper for handling the packet's payload. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
#ifndef __USBAUDIO_ENDPOINT_H
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#define __USBAUDIO_ENDPOINT_H
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void snd_usb_init_substream(struct snd_usb_stream *as,
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int stream,
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struct audioformat *fp);
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int snd_usb_init_substream_urbs(struct snd_usb_substream *subs,
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unsigned int period_bytes,
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unsigned int rate,
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unsigned int frame_bits);
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void snd_usb_release_substream_urbs(struct snd_usb_substream *subs, int force);
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int snd_usb_substream_prepare(struct snd_usb_substream *subs,
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struct snd_pcm_runtime *runtime);
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#define SND_USB_ENDPOINT_TYPE_DATA 0
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#define SND_USB_ENDPOINT_TYPE_SYNC 1
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struct snd_usb_endpoint *snd_usb_add_endpoint(struct snd_usb_audio *chip,
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struct usb_host_interface *alts,
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int ep_num, int direction, int type);
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int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
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struct snd_pcm_hw_params *hw_params,
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struct audioformat *fmt,
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struct snd_usb_endpoint *sync_ep);
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int snd_usb_endpoint_start(struct snd_usb_endpoint *ep);
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void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
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int force, int can_sleep, int wait);
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int snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
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int snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
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void snd_usb_endpoint_free(struct list_head *head);
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int snd_usb_endpoint_implict_feedback_sink(struct snd_usb_endpoint *ep);
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void snd_usb_handle_sync_urb(struct snd_usb_endpoint *ep,
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struct snd_usb_endpoint *sender,
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const struct urb *urb);
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#endif /* __USBAUDIO_ENDPOINT_H */
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