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