92 lines
3.5 KiB
C
92 lines
3.5 KiB
C
/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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*** To edit the content of this header, modify the corresponding
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*** source file (e.g. under external/kernel-headers/original/) then
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*** run bionic/libc/kernel/tools/update_all.py
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***
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*** Any manual change here will be lost the next time this script will
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*** be run. You've been warned!
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***
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****************************************************************************
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****************************************************************************/
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#ifndef __COMPRESS_OFFLOAD_H
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#define __COMPRESS_OFFLOAD_H
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#include <linux/types.h>
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#include <sound/asound.h>
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#include <sound/compress_params.h>
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#define SNDRV_COMPRESS_VERSION SNDRV_PROTOCOL_VERSION(0, 2, 0)
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struct snd_compressed_buffer {
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__u32 fragment_size;
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__u32 fragments;
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} __attribute__((packed, aligned(4)));
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struct snd_compr_params {
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struct snd_compressed_buffer buffer;
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struct snd_codec codec;
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__u8 no_wake_mode;
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} __attribute__((packed, aligned(4)));
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struct snd_compr_tstamp {
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__u32 byte_offset;
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__u32 copied_total;
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__u32 pcm_frames;
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__u32 pcm_io_frames;
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__u32 sampling_rate;
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} __attribute__((packed, aligned(4)));
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struct snd_compr_avail {
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__u64 avail;
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struct snd_compr_tstamp tstamp;
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} __attribute__((packed, aligned(4)));
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enum snd_compr_direction {
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SND_COMPRESS_PLAYBACK = 0,
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SND_COMPRESS_CAPTURE
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};
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struct snd_compr_caps {
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__u32 num_codecs;
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__u32 direction;
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__u32 min_fragment_size;
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__u32 max_fragment_size;
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__u32 min_fragments;
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__u32 max_fragments;
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__u32 codecs[MAX_NUM_CODECS];
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__u32 reserved[11];
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} __attribute__((packed, aligned(4)));
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struct snd_compr_codec_caps {
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__u32 codec;
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__u32 num_descriptors;
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struct snd_codec_desc descriptor[MAX_NUM_CODEC_DESCRIPTORS];
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} __attribute__((packed, aligned(4)));
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enum sndrv_compress_encoder {
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SNDRV_COMPRESS_ENCODER_PADDING = 1,
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SNDRV_COMPRESS_ENCODER_DELAY = 2,
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};
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struct snd_compr_metadata {
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__u32 key;
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__u32 value[8];
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} __attribute__((packed, aligned(4)));
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#define SNDRV_COMPRESS_IOCTL_VERSION _IOR('C', 0x00, int)
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#define SNDRV_COMPRESS_GET_CAPS _IOWR('C', 0x10, struct snd_compr_caps)
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#define SNDRV_COMPRESS_GET_CODEC_CAPS _IOWR('C', 0x11, struct snd_compr_codec_caps)
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#define SNDRV_COMPRESS_SET_PARAMS _IOW('C', 0x12, struct snd_compr_params)
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#define SNDRV_COMPRESS_GET_PARAMS _IOR('C', 0x13, struct snd_codec)
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#define SNDRV_COMPRESS_SET_METADATA _IOW('C', 0x14, struct snd_compr_metadata)
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#define SNDRV_COMPRESS_GET_METADATA _IOWR('C', 0x15, struct snd_compr_metadata)
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#define SNDRV_COMPRESS_TSTAMP _IOR('C', 0x20, struct snd_compr_tstamp)
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#define SNDRV_COMPRESS_AVAIL _IOR('C', 0x21, struct snd_compr_avail)
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#define SNDRV_COMPRESS_PAUSE _IO('C', 0x30)
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#define SNDRV_COMPRESS_RESUME _IO('C', 0x31)
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#define SNDRV_COMPRESS_START _IO('C', 0x32)
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#define SNDRV_COMPRESS_STOP _IO('C', 0x33)
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#define SNDRV_COMPRESS_DRAIN _IO('C', 0x34)
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#define SNDRV_COMPRESS_NEXT_TRACK _IO('C', 0x35)
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#define SNDRV_COMPRESS_PARTIAL_DRAIN _IO('C', 0x36)
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#define SND_COMPR_TRIGGER_DRAIN 7
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#define SND_COMPR_TRIGGER_NEXT_TRACK 8
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#define SND_COMPR_TRIGGER_PARTIAL_DRAIN 9
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#endif
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