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) 25 struct snd_compressed_buffer { 26 __u32 fragment_size; 27 __u32 fragments; 28 } __attribute__((packed, aligned(4))); 29 struct snd_compr_params { 30 struct snd_compressed_buffer buffer; 31 struct snd_codec codec; 32 __u8 no_wake_mode; 33 } __attribute__((packed, aligned(4))); 34 struct snd_compr_tstamp { 35 __u32 byte_offset; 36 __u64 copied_total; 37 __u32 pcm_frames; 38 __u32 pcm_io_frames; 39 __u32 sampling_rate; 40 __u64 timestamp; 41 } __attribute__((packed, aligned(4))); 42 struct snd_compr_avail { 43 __u64 avail; 44 struct snd_compr_tstamp tstamp; 45 } __attribute__((packed, aligned(4))); 46 enum snd_compr_direction { 47 SND_COMPRESS_PLAYBACK = 0, 48 SND_COMPRESS_CAPTURE 49 }; 50 struct snd_compr_caps { 51 __u32 num_codecs; 52 __u32 direction; 53 __u32 min_fragment_size; 54 __u32 max_fragment_size; 55 __u32 min_fragments; 56 __u32 max_fragments; 57 __u32 codecs[MAX_NUM_CODECS]; 58 __u32 reserved[11]; 59 } __attribute__((packed, aligned(4))); 60 struct snd_compr_codec_caps { 61 __u32 codec; 62 __u32 num_descriptors; 63 struct snd_codec_desc descriptor[MAX_NUM_CODEC_DESCRIPTORS]; 64 } __attribute__((packed, aligned(4))); 65 struct snd_compr_audio_info { 66 __u32 frame_size; 67 __u32 reserved[15]; 68 } __attribute__((packed, aligned(4))); 69 #define SNDRV_COMPRESS_RENDER_MODE_AUDIO_MASTER 0 70 #define SNDRV_COMPRESS_RENDER_MODE_STC_MASTER 1 71 #define SNDRV_COMPRESS_RENDER_MODE_TTP 2 72 #define SNDRV_COMPRESS_CLK_REC_MODE_NONE 0 73 #define SNDRV_COMPRESS_CLK_REC_MODE_AUTO 1 74 #define SNDRV_COMPRESS_TIMESTAMP_VALID 0x00000000 75 #define SNDRV_COMPRESS_TIMESTAMP_CONTINUE 0x00000001 76 enum sndrv_compress_latency_mode { 77 SNDRV_COMPRESS_LEGACY_LATENCY_MODE = 0, 78 SNDRV_COMPRESS_LOW_LATENCY_MODE = 1, 79 }; 80 enum sndrv_compress_encoder { 81 SNDRV_COMPRESS_ENCODER_PADDING = 1, 82 SNDRV_COMPRESS_ENCODER_DELAY = 2, 83 SNDRV_COMPRESS_MIN_BLK_SIZE = 3, 84 SNDRV_COMPRESS_MAX_BLK_SIZE = 4, 85 SNDRV_COMPRESS_PATH_DELAY = 5, 86 SNDRV_COMPRESS_RENDER_MODE = 6, 87 SNDRV_COMPRESS_CLK_REC_MODE = 7, 88 SNDRV_COMPRESS_RENDER_WINDOW = 8, 89 SNDRV_COMPRESS_START_DELAY = 9, 90 SNDRV_COMPRESS_ENABLE_ADJUST_SESSION_CLOCK = 10, 91 SNDRV_COMPRESS_ADJUST_SESSION_CLOCK = 11, 92 SNDRV_COMPRESS_LATENCY_MODE = 12, 93 SNDRV_COMPRESS_IN_TTP_OFFSET = 13, 94 }; 95 #define SNDRV_COMPRESS_MIN_BLK_SIZE SNDRV_COMPRESS_MIN_BLK_SIZE 96 #define SNDRV_COMPRESS_MAX_BLK_SIZE SNDRV_COMPRESS_MAX_BLK_SIZE 97 #define SNDRV_COMPRESS_PATH_DELAY SNDRV_COMPRESS_PATH_DELAY 98 #define SNDRV_COMPRESS_RENDER_MODE SNDRV_COMPRESS_RENDER_MODE 99 #define SNDRV_COMPRESS_CLK_REC_MODE SNDRV_COMPRESS_CLK_REC_MODE 100 #define SNDRV_COMPRESS_RENDER_WINDOW SNDRV_COMPRESS_RENDER_WINDOW 101 #define SNDRV_COMPRESS_START_DELAY SNDRV_COMPRESS_START_DELAY 102 #define SNDRV_COMPRESS_ENABLE_ADJUST_SESSION_CLOCK SNDRV_COMPRESS_ENABLE_ADJUST_SESSION_CLOCK 103 #define SNDRV_COMPRESS_ADJUST_SESSION_CLOCK SNDRV_COMPRESS_ADJUST_SESSION_CLOCK 104 #define SNDRV_COMPRESS_LATENCY_MODE SNDRV_COMPRESS_LATENCY_MODE 105 #define SNDRV_COMPRESS_IN_TTP_OFFSET SNDRV_COMPRESS_IN_TTP_OFFSET 106 struct snd_compr_metadata { 107 __u32 key; 108 __u32 value[8]; 109 } __attribute__((packed, aligned(4))); 110 #define SNDRV_COMPRESS_IOCTL_VERSION _IOR('C', 0x00, int) 111 #define SNDRV_COMPRESS_GET_CAPS _IOWR('C', 0x10, struct snd_compr_caps) 112 #define SNDRV_COMPRESS_GET_CODEC_CAPS _IOWR('C', 0x11, struct snd_compr_codec_caps) 113 #define SNDRV_COMPRESS_SET_PARAMS _IOW('C', 0x12, struct snd_compr_params) 114 #define SNDRV_COMPRESS_GET_PARAMS _IOR('C', 0x13, struct snd_codec) 115 #define SNDRV_COMPRESS_SET_METADATA _IOW('C', 0x14, struct snd_compr_metadata) 116 #define SNDRV_COMPRESS_GET_METADATA _IOWR('C', 0x15, struct snd_compr_metadata) 117 #define SNDRV_COMPRESS_TSTAMP _IOR('C', 0x20, struct snd_compr_tstamp) 118 #define SNDRV_COMPRESS_AVAIL _IOR('C', 0x21, struct snd_compr_avail) 119 #define SNDRV_COMPRESS_PAUSE _IO('C', 0x30) 120 #define SNDRV_COMPRESS_RESUME _IO('C', 0x31) 121 #define SNDRV_COMPRESS_START _IO('C', 0x32) 122 #define SNDRV_COMPRESS_STOP _IO('C', 0x33) 123 #define SNDRV_COMPRESS_DRAIN _IO('C', 0x34) 124 #define SNDRV_COMPRESS_NEXT_TRACK _IO('C', 0x35) 125 #define SNDRV_COMPRESS_PARTIAL_DRAIN _IO('C', 0x36) 126 #define SNDRV_COMPRESS_SET_NEXT_TRACK_PARAM _IOW('C', 0x80, union snd_codec_options) 127 #define SND_COMPR_TRIGGER_DRAIN 7 128 #define SND_COMPR_TRIGGER_NEXT_TRACK 8 129 #define SND_COMPR_TRIGGER_PARTIAL_DRAIN 9 130 #define SNDRV_COMPRESS_DSP_POSITION 10 131 #endif 132