0UT1S's

usr/include/sound/

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20.61 KB

21.96 KB

50.02 KB

3.55 KB

compress_offload.h

5.79 KB

compress_params.h

16.08 KB

18.38 KB

10.76 KB

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4.38 KB

3.48 KB

6.60 KB

skl-tplg-interface.h

5.20 KB

snd_sst_tokens.h

11.48 KB

3.98 KB

1.21 KB

/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
 * Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de>
 */

#ifndef __SOUND_USB_STREAM_H
#define __SOUND_USB_STREAM_H

#define USB_STREAM_INTERFACE_VERSION 2

#define SNDRV_USB_STREAM_IOCTL_SET_PARAMS \
	_IOW('H', 0x90, struct usb_stream_config)

struct usb_stream_packet {
	unsigned offset;
	unsigned length;
};

struct usb_stream_config {
	unsigned version;
	unsigned sample_rate;
	unsigned period_frames;
	unsigned frame_size;
};

struct usb_stream {
	struct usb_stream_config cfg;
	unsigned read_size;
	unsigned write_size;

int period_size;

unsigned state;

int idle_insize;
	int idle_outsize;
	int sync_packet;
	unsigned insize_done;
	unsigned periods_done;
	unsigned periods_polled;

struct usb_stream_packet outpacket[2];
	unsigned		 inpackets;
	unsigned		 inpacket_head;
	unsigned		 inpacket_split;
	unsigned		 inpacket_split_at;
	unsigned		 next_inpacket_split;
	unsigned		 next_inpacket_split_at;
	struct usb_stream_packet inpacket[0];
};

enum usb_stream_state {
	usb_stream_invalid,
	usb_stream_stopped,
	usb_stream_sync0,
	usb_stream_sync1,
	usb_stream_ready,
	usb_stream_running,
	usb_stream_xrun,
};

#endif /* __SOUND_USB_STREAM_H */