diff options
Diffstat (limited to 'ANDROID_3.4.5/include/sound/compress_driver.h')
| -rw-r--r-- | ANDROID_3.4.5/include/sound/compress_driver.h | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/ANDROID_3.4.5/include/sound/compress_driver.h b/ANDROID_3.4.5/include/sound/compress_driver.h deleted file mode 100644 index 48f2a1ff..00000000 --- a/ANDROID_3.4.5/include/sound/compress_driver.h +++ /dev/null @@ -1,167 +0,0 @@ -/* - * compress_driver.h - compress offload driver definations - * - * Copyright (C) 2011 Intel Corporation - * Authors: Vinod Koul <vinod.koul@linux.intel.com> - * Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - */ -#ifndef __COMPRESS_DRIVER_H -#define __COMPRESS_DRIVER_H - -#include <linux/types.h> -#include <linux/sched.h> -#include <sound/compress_offload.h> -#include <sound/asound.h> -#include <sound/pcm.h> - -struct snd_compr_ops; - -/** - * struct snd_compr_runtime: runtime stream description - * @state: stream state - * @ops: pointer to DSP callbacks - * @buffer: pointer to kernel buffer, valid only when not in mmap mode or - * DSP doesn't implement copy - * @buffer_size: size of the above buffer - * @fragment_size: size of buffer fragment in bytes - * @fragments: number of such fragments - * @hw_pointer: offset of last location in buffer where DSP copied data - * @app_pointer: offset of last location in buffer where app wrote data - * @total_bytes_available: cumulative number of bytes made available in - * the ring buffer - * @total_bytes_transferred: cumulative bytes transferred by offload DSP - * @sleep: poll sleep - */ -struct snd_compr_runtime { - snd_pcm_state_t state; - struct snd_compr_ops *ops; - void *buffer; - u64 buffer_size; - u32 fragment_size; - u32 fragments; - u64 hw_pointer; - u64 app_pointer; - u64 total_bytes_available; - u64 total_bytes_transferred; - wait_queue_head_t sleep; -}; - -/** - * struct snd_compr_stream: compressed stream - * @name: device name - * @ops: pointer to DSP callbacks - * @runtime: pointer to runtime structure - * @device: device pointer - * @direction: stream direction, playback/recording - * @private_data: pointer to DSP private data - */ -struct snd_compr_stream { - const char *name; - struct snd_compr_ops *ops; - struct snd_compr_runtime *runtime; - struct snd_compr *device; - enum snd_compr_direction direction; - void *private_data; -}; - -/** - * struct snd_compr_ops: compressed path DSP operations - * @open: Open the compressed stream - * This callback is mandatory and shall keep dsp ready to receive the stream - * parameter - * @free: Close the compressed stream, mandatory - * @set_params: Sets the compressed stream parameters, mandatory - * This can be called in during stream creation only to set codec params - * and the stream properties - * @get_params: retrieve the codec parameters, mandatory - * @trigger: Trigger operations like start, pause, resume, drain, stop. - * This callback is mandatory - * @pointer: Retrieve current h/w pointer information. Mandatory - * @copy: Copy the compressed data to/from userspace, Optional - * Can't be implemented if DSP supports mmap - * @mmap: DSP mmap method to mmap DSP memory - * @ack: Ack for DSP when data is written to audio buffer, Optional - * Not valid if copy is implemented - * @get_caps: Retrieve DSP capabilities, mandatory - * @get_codec_caps: Retrieve capabilities for a specific codec, mandatory - */ -struct snd_compr_ops { - int (*open)(struct snd_compr_stream *stream); - int (*free)(struct snd_compr_stream *stream); - int (*set_params)(struct snd_compr_stream *stream, - struct snd_compr_params *params); - int (*get_params)(struct snd_compr_stream *stream, - struct snd_codec *params); - int (*trigger)(struct snd_compr_stream *stream, int cmd); - int (*pointer)(struct snd_compr_stream *stream, - struct snd_compr_tstamp *tstamp); - int (*copy)(struct snd_compr_stream *stream, const char __user *buf, - size_t count); - int (*mmap)(struct snd_compr_stream *stream, - struct vm_area_struct *vma); - int (*ack)(struct snd_compr_stream *stream, size_t bytes); - int (*get_caps) (struct snd_compr_stream *stream, - struct snd_compr_caps *caps); - int (*get_codec_caps) (struct snd_compr_stream *stream, - struct snd_compr_codec_caps *codec); -}; - -/** - * struct snd_compr: Compressed device - * @name: DSP device name - * @dev: Device pointer - * @ops: pointer to DSP callbacks - * @private_data: pointer to DSP pvt data - * @card: sound card pointer - * @direction: Playback or capture direction - * @lock: device lock - * @device: device id - */ -struct snd_compr { - const char *name; - struct device *dev; - struct snd_compr_ops *ops; - void *private_data; - struct snd_card *card; - unsigned int direction; - struct mutex lock; - int device; -}; - -/* compress device register APIs */ -int snd_compress_register(struct snd_compr *device); -int snd_compress_deregister(struct snd_compr *device); -int snd_compress_new(struct snd_card *card, int device, - int type, struct snd_compr *compr); - -/* dsp driver callback apis - * For playback: driver should call snd_compress_fragment_elapsed() to let the - * framework know that a fragment has been consumed from the ring buffer - * - * For recording: we want to know when a frame is available or when - * at least one frame is available so snd_compress_frame_elapsed() - * callback should be called when a encodeded frame is available - */ -static inline void snd_compr_fragment_elapsed(struct snd_compr_stream *stream) -{ - wake_up(&stream->runtime->sleep); -} - -#endif |