^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * compress_driver.h - compress offload driver definations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2011 Intel Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Authors: Vinod Koul <vinod.koul@linux.intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #ifndef __COMPRESS_DRIVER_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define __COMPRESS_DRIVER_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/android_kabi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <sound/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <sound/compress_offload.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <sound/asound.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <sound/pcm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) struct snd_compr_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * struct snd_compr_runtime: runtime stream description
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * @state: stream state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * @ops: pointer to DSP callbacks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * @buffer: pointer to kernel buffer, valid only when not in mmap mode or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * DSP doesn't implement copy
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * @buffer_size: size of the above buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * @fragment_size: size of buffer fragment in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * @fragments: number of such fragments
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * @total_bytes_available: cumulative number of bytes made available in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * the ring buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * @total_bytes_transferred: cumulative bytes transferred by offload DSP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * @sleep: poll sleep
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * @private_data: driver private data pointer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * @dma_area: virtual buffer address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * @dma_addr: physical buffer address (not accessible from main CPU)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * @dma_bytes: size of DMA area
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * @dma_buffer_p: runtime dma buffer pointer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct snd_compr_runtime {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) snd_pcm_state_t state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct snd_compr_ops *ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) void *buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) u64 buffer_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) u32 fragment_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) u32 fragments;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) u64 total_bytes_available;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) u64 total_bytes_transferred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) wait_queue_head_t sleep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) void *private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) unsigned char *dma_area;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) dma_addr_t dma_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) size_t dma_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct snd_dma_buffer *dma_buffer_p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) ANDROID_KABI_RESERVE(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * struct snd_compr_stream: compressed stream
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * @name: device name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) * @ops: pointer to DSP callbacks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * @runtime: pointer to runtime structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * @device: device pointer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * @error_work: delayed work used when closing the stream due to an error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * @direction: stream direction, playback/recording
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * @metadata_set: metadata set flag, true when set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) * @next_track: has userspace signal next track transition, true when set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) * @partial_drain: undergoing partial_drain for stream, true when set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) * @private_data: pointer to DSP private data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) * @dma_buffer: allocated buffer if any
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) struct snd_compr_stream {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct snd_compr_ops *ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct snd_compr_runtime *runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) struct snd_compr *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct delayed_work error_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) enum snd_compr_direction direction;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) bool metadata_set;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) bool next_track;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) bool partial_drain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) void *private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct snd_dma_buffer dma_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) ANDROID_KABI_RESERVE(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) * struct snd_compr_ops: compressed path DSP operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * @open: Open the compressed stream
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * This callback is mandatory and shall keep dsp ready to receive the stream
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) * parameter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * @free: Close the compressed stream, mandatory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * @set_params: Sets the compressed stream parameters, mandatory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * This can be called in during stream creation only to set codec params
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) * and the stream properties
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) * @get_params: retrieve the codec parameters, mandatory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) * @set_metadata: Set the metadata values for a stream
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * @get_metadata: retrieves the requested metadata values from stream
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * @trigger: Trigger operations like start, pause, resume, drain, stop.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) * This callback is mandatory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) * @pointer: Retrieve current h/w pointer information. Mandatory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) * @copy: Copy the compressed data to/from userspace, Optional
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) * Can't be implemented if DSP supports mmap
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) * @mmap: DSP mmap method to mmap DSP memory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) * @ack: Ack for DSP when data is written to audio buffer, Optional
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) * Not valid if copy is implemented
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) * @get_caps: Retrieve DSP capabilities, mandatory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) * @get_codec_caps: Retrieve capabilities for a specific codec, mandatory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct snd_compr_ops {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) int (*open)(struct snd_compr_stream *stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) int (*free)(struct snd_compr_stream *stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) int (*set_params)(struct snd_compr_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) struct snd_compr_params *params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) int (*get_params)(struct snd_compr_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) struct snd_codec *params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) int (*set_metadata)(struct snd_compr_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) struct snd_compr_metadata *metadata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) int (*get_metadata)(struct snd_compr_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct snd_compr_metadata *metadata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) int (*trigger)(struct snd_compr_stream *stream, int cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) int (*pointer)(struct snd_compr_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct snd_compr_tstamp *tstamp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) int (*copy)(struct snd_compr_stream *stream, char __user *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) size_t count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) int (*mmap)(struct snd_compr_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) struct vm_area_struct *vma);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) int (*ack)(struct snd_compr_stream *stream, size_t bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) int (*get_caps) (struct snd_compr_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) struct snd_compr_caps *caps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) int (*get_codec_caps) (struct snd_compr_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) struct snd_compr_codec_caps *codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) ANDROID_KABI_RESERVE(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) * struct snd_compr: Compressed device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) * @name: DSP device name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) * @dev: associated device instance
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * @ops: pointer to DSP callbacks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) * @private_data: pointer to DSP pvt data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) * @card: sound card pointer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) * @direction: Playback or capture direction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) * @lock: device lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) * @device: device id
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) struct snd_compr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct device dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct snd_compr_ops *ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) void *private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) struct snd_card *card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) unsigned int direction;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) struct mutex lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) int device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) #ifdef CONFIG_SND_VERBOSE_PROCFS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) /* private: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) char id[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) struct snd_info_entry *proc_root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) struct snd_info_entry *proc_info_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) ANDROID_KABI_RESERVE(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) /* compress device register APIs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) int snd_compress_register(struct snd_compr *device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) int snd_compress_deregister(struct snd_compr *device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) int snd_compress_new(struct snd_card *card, int device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) int type, const char *id, struct snd_compr *compr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) /* dsp driver callback apis
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * For playback: driver should call snd_compress_fragment_elapsed() to let the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) * framework know that a fragment has been consumed from the ring buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) * For recording: we want to know when a frame is available or when
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) * at least one frame is available so snd_compress_frame_elapsed()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) * callback should be called when a encodeded frame is available
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) static inline void snd_compr_fragment_elapsed(struct snd_compr_stream *stream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) wake_up(&stream->runtime->sleep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) static inline void snd_compr_drain_notify(struct snd_compr_stream *stream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) if (snd_BUG_ON(!stream))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) /* for partial_drain case we are back to running state on success */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (stream->partial_drain) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) stream->runtime->state = SNDRV_PCM_STATE_RUNNING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) stream->partial_drain = false; /* clear this flag as well */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) stream->runtime->state = SNDRV_PCM_STATE_SETUP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) wake_up(&stream->runtime->sleep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) * snd_compr_set_runtime_buffer - Set the Compress runtime buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) * @stream: compress stream to set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) * @bufp: the buffer information, NULL to clear
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * Copy the buffer information to runtime buffer when @bufp is non-NULL.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) * Otherwise it clears the current buffer information.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) snd_compr_set_runtime_buffer(struct snd_compr_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) struct snd_dma_buffer *bufp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) struct snd_compr_runtime *runtime = stream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) if (bufp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) runtime->dma_buffer_p = bufp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) runtime->dma_area = bufp->area;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) runtime->dma_addr = bufp->addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) runtime->dma_bytes = bufp->bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) runtime->dma_buffer_p = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) runtime->dma_area = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) runtime->dma_addr = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) runtime->dma_bytes = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) int snd_compr_malloc_pages(struct snd_compr_stream *stream, size_t size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) int snd_compr_free_pages(struct snd_compr_stream *stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) int snd_compr_stop_error(struct snd_compr_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) snd_pcm_state_t state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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