1/****************************************************************************
2 ****************************************************************************
3 ***
4 ***   This header was automatically generated from a Linux kernel header
5 ***   of the same name, to make information necessary for userspace to
6 ***   call into the kernel available to libc.  It contains only constants,
7 ***   structures, and macros generated from the original header, and thus,
8 ***   contains no copyrightable information.
9 ***
10 ***   To edit the content of this header, modify the corresponding
11 ***   source file (e.g. under external/kernel-headers/original/) then
12 ***   run bionic/libc/kernel/tools/update_all.py
13 ***
14 ***   Any manual change here will be lost the next time this script will
15 ***   be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19#ifndef __COMPRESS_OFFLOAD_H
20#define __COMPRESS_OFFLOAD_H
21#include <linux/types.h>
22#include <sound/asound.h>
23#include <sound/compress_params.h>
24#define SNDRV_COMPRESS_VERSION SNDRV_PROTOCOL_VERSION(0, 1, 2)
25struct snd_compressed_buffer {
26  __u32 fragment_size;
27  __u32 fragments;
28} __attribute__((packed, aligned(4)));
29struct snd_compr_params {
30  struct snd_compressed_buffer buffer;
31  struct snd_codec codec;
32  __u8 no_wake_mode;
33} __attribute__((packed, aligned(4)));
34struct snd_compr_tstamp {
35  __u32 byte_offset;
36  __u32 copied_total;
37  __u32 pcm_frames;
38  __u32 pcm_io_frames;
39  __u32 sampling_rate;
40} __attribute__((packed, aligned(4)));
41struct snd_compr_avail {
42  __u64 avail;
43  struct snd_compr_tstamp tstamp;
44} __attribute__((packed, aligned(4)));
45enum snd_compr_direction {
46  SND_COMPRESS_PLAYBACK = 0,
47  SND_COMPRESS_CAPTURE
48};
49struct snd_compr_caps {
50  __u32 num_codecs;
51  __u32 direction;
52  __u32 min_fragment_size;
53  __u32 max_fragment_size;
54  __u32 min_fragments;
55  __u32 max_fragments;
56  __u32 codecs[MAX_NUM_CODECS];
57  __u32 reserved[11];
58} __attribute__((packed, aligned(4)));
59struct snd_compr_codec_caps {
60  __u32 codec;
61  __u32 num_descriptors;
62  struct snd_codec_desc descriptor[MAX_NUM_CODEC_DESCRIPTORS];
63} __attribute__((packed, aligned(4)));
64enum sndrv_compress_encoder {
65  SNDRV_COMPRESS_ENCODER_PADDING = 1,
66  SNDRV_COMPRESS_ENCODER_DELAY = 2,
67};
68struct snd_compr_metadata {
69  __u32 key;
70  __u32 value[8];
71} __attribute__((packed, aligned(4)));
72#define SNDRV_COMPRESS_IOCTL_VERSION _IOR('C', 0x00, int)
73#define SNDRV_COMPRESS_GET_CAPS _IOWR('C', 0x10, struct snd_compr_caps)
74#define SNDRV_COMPRESS_GET_CODEC_CAPS _IOWR('C', 0x11, struct snd_compr_codec_caps)
75#define SNDRV_COMPRESS_SET_PARAMS _IOW('C', 0x12, struct snd_compr_params)
76#define SNDRV_COMPRESS_GET_PARAMS _IOR('C', 0x13, struct snd_codec)
77#define SNDRV_COMPRESS_SET_METADATA _IOW('C', 0x14, struct snd_compr_metadata)
78#define SNDRV_COMPRESS_GET_METADATA _IOWR('C', 0x15, struct snd_compr_metadata)
79#define SNDRV_COMPRESS_TSTAMP _IOR('C', 0x20, struct snd_compr_tstamp)
80#define SNDRV_COMPRESS_AVAIL _IOR('C', 0x21, struct snd_compr_avail)
81#define SNDRV_COMPRESS_PAUSE _IO('C', 0x30)
82#define SNDRV_COMPRESS_RESUME _IO('C', 0x31)
83#define SNDRV_COMPRESS_START _IO('C', 0x32)
84#define SNDRV_COMPRESS_STOP _IO('C', 0x33)
85#define SNDRV_COMPRESS_DRAIN _IO('C', 0x34)
86#define SNDRV_COMPRESS_NEXT_TRACK _IO('C', 0x35)
87#define SNDRV_COMPRESS_PARTIAL_DRAIN _IO('C', 0x36)
88#define SND_COMPR_TRIGGER_DRAIN 7
89#define SND_COMPR_TRIGGER_NEXT_TRACK 8
90#define SND_COMPR_TRIGGER_PARTIAL_DRAIN 9
91#endif
92