Gecko [ 167.86.127.34 ]

Name	Size	Permission
ac97	[ DIR ]	drwxr-xr-x
ac97_codec.h	16.34 KB	-rw-r--r--
aci.h	2.4 KB	-rw-r--r--
ad1816a.h	5.38 KB	-rw-r--r--
ad1843.h	1.48 KB	-rw-r--r--
adau1373.h	699 B	-rw-r--r--
aess.h	1.63 KB	-rw-r--r--
ak4113.h	10.89 KB	-rw-r--r--
ak4114.h	10.22 KB	-rw-r--r--
ak4117.h	9.02 KB	-rw-r--r--
ak4531_codec.h	3.1 KB	-rw-r--r--
ak4641.h	622 B	-rw-r--r--
ak4xxx-adda.h	3.34 KB	-rw-r--r--
alc5623.h	536 B	-rw-r--r--
asequencer.h	3.58 KB	-rw-r--r--
asound.h	1.25 KB	-rw-r--r--
asoundef.h	16.7 KB	-rw-r--r--
compress_driver.h	6.93 KB	-rw-r--r--
control.h	8.84 KB	-rw-r--r--
core.h	13.84 KB	-rw-r--r--
cs35l33.h	1.01 KB	-rw-r--r--
cs35l34.h	887 B	-rw-r--r--
cs35l35.h	2.36 KB	-rw-r--r--
cs4231-regs.h	8.28 KB	-rw-r--r--
cs4271.h	1.38 KB	-rw-r--r--
cs42l52.h	738 B	-rw-r--r--
cs42l56.h	1.16 KB	-rw-r--r--
cs42l73.h	507 B	-rw-r--r--
cs8403.h	8.63 KB	-rw-r--r--
cs8427.h	10.4 KB	-rw-r--r--
da7213.h	1.15 KB	-rw-r--r--
da7218.h	2.62 KB	-rw-r--r--
da7219-aad.h	2.42 KB	-rw-r--r--
da7219.h	1.04 KB	-rw-r--r--
da9055.h	914 B	-rw-r--r--
designware_i2s.h	2.25 KB	-rw-r--r--
dmaengine_pcm.h	6.22 KB	-rw-r--r--
emu10k1.h	89.25 KB	-rw-r--r--
emu10k1_synth.h	1.35 KB	-rw-r--r--
emu8000.h	4.01 KB	-rw-r--r--
emu8000_reg.h	10.21 KB	-rw-r--r--
emux_legacy.h	5.37 KB	-rw-r--r--
emux_synth.h	7.46 KB	-rw-r--r--
es1688.h	3.53 KB	-rw-r--r--
gus.h	20.21 KB	-rw-r--r--
hda_chmap.h	2.6 KB	-rw-r--r--
hda_hwdep.h	1.38 KB	-rw-r--r--
hda_i915.h	1.64 KB	-rw-r--r--
hda_register.h	10 KB	-rw-r--r--
hda_regmap.h	6.59 KB	-rw-r--r--
hda_verbs.h	16.81 KB	-rw-r--r--
hdaudio.h	18.39 KB	-rw-r--r--
hdaudio_ext.h	6.99 KB	-rw-r--r--
hdmi-codec.h	2.42 KB	-rw-r--r--
hwdep.h	2.56 KB	-rw-r--r--
i2c.h	3.47 KB	-rw-r--r--
info.h	7.41 KB	-rw-r--r--
initval.h	3.08 KB	-rw-r--r--
jack.h	3.75 KB	-rw-r--r--
l3.h	524 B	-rw-r--r--
max9768.h	729 B	-rw-r--r--
max98088.h	1.26 KB	-rw-r--r--
max98090.h	754 B	-rw-r--r--
max98095.h	1.54 KB	-rw-r--r--
memalloc.h	4.41 KB	-rw-r--r--
minors.h	4.33 KB	-rw-r--r--
mixer_oss.h	2.41 KB	-rw-r--r--
mpu401.h	4.49 KB	-rw-r--r--
omap-hdmi-audio.h	1.34 KB	-rw-r--r--
omap-pcm.h	864 B	-rw-r--r--
opl3.h	12.31 KB	-rw-r--r--
opl4.h	1.1 KB	-rw-r--r--
pcm-indirect.h	5.7 KB	-rw-r--r--
pcm.h	47.51 KB	-rw-r--r--
pcm_drm_eld.h	183 B	-rw-r--r--
pcm_iec958.h	332 B	-rw-r--r--
pcm_oss.h	2.69 KB	-rw-r--r--
pcm_params.h	9.03 KB	-rw-r--r--
pt2258.h	1.18 KB	-rw-r--r--
pxa2xx-lib.h	1.48 KB	-rw-r--r--
rawmidi.h	6.17 KB	-rw-r--r--
rt286.h	460 B	-rw-r--r--
rt298.h	519 B	-rw-r--r--
rt5514.h	478 B	-rw-r--r--
rt5640.h	648 B	-rw-r--r--
rt5645.h	738 B	-rw-r--r--
rt5651.h	581 B	-rw-r--r--
rt5659.h	1003 B	-rw-r--r--
rt5660.h	724 B	-rw-r--r--
rt5663.h	622 B	-rw-r--r--
rt5665.h	907 B	-rw-r--r--
rt5670.h	679 B	-rw-r--r--
s3c24xx_uda134x.h	229 B	-rw-r--r--
sb.h	10.98 KB	-rw-r--r--
sb16_csp.h	2.71 KB	-rw-r--r--
seq_device.h	2.79 KB	-rw-r--r--
seq_kernel.h	3.96 KB	-rw-r--r--
seq_midi_emul.h	7.26 KB	-rw-r--r--
seq_midi_event.h	2.17 KB	-rw-r--r--
seq_oss.h	2.86 KB	-rw-r--r--
seq_oss_legacy.h	1 KB	-rw-r--r--
seq_virmidi.h	2.73 KB	-rw-r--r--
sh_dac_audio.h	587 B	-rw-r--r--
sh_fsi.h	847 B	-rw-r--r--
simple_card.h	683 B	-rw-r--r--
simple_card_utils.h	3.96 KB	-rw-r--r--
snd_wavefront.h	5.57 KB	-rw-r--r--
soc-acpi-intel-match.h	1.1 KB	-rw-r--r--
soc-acpi.h	3.6 KB	-rw-r--r--
soc-dai.h	11.13 KB	-rw-r--r--
soc-dapm.h	30.87 KB	-rw-r--r--
soc-dpcm.h	4.73 KB	-rw-r--r--
soc-topology.h	5.71 KB	-rw-r--r--
soc.h	63.47 KB	-rw-r--r--
soundfont.h	4.48 KB	-rw-r--r--
spear_dma.h	1003 B	-rw-r--r--
spear_spdif.h	1010 B	-rw-r--r--
sta32x.h	1.2 KB	-rw-r--r--
sta350.h	1.65 KB	-rw-r--r--
tas2552-plat.h	678 B	-rw-r--r--
tas5086.h	210 B	-rw-r--r--
tea6330t.h	1.14 KB	-rw-r--r--
timer.h	5.56 KB	-rw-r--r--
tlv.h	2.27 KB	-rw-r--r--
tlv320aic32x4.h	1.43 KB	-rw-r--r--
tlv320aic3x.h	1.88 KB	-rw-r--r--
tlv320dac33-plat.h	720 B	-rw-r--r--
tpa6130a2-plat.h	900 B	-rw-r--r--
uda134x.h	597 B	-rw-r--r--
uda1380.h	481 B	-rw-r--r--
util_mem.h	2.26 KB	-rw-r--r--
vx_core.h	15.34 KB	-rw-r--r--
wavefront.h	18.76 KB	-rw-r--r--
wm0010.h	679 B	-rw-r--r--
wm1250-ev1.h	656 B	-rw-r--r--
wm2000.h	625 B	-rw-r--r--
wm2200.h	1.46 KB	-rw-r--r--
wm5100.h	1.25 KB	-rw-r--r--
wm8903.h	15.16 KB	-rw-r--r--
wm8904.h	7.43 KB	-rw-r--r--
wm8955.h	662 B	-rw-r--r--
wm8960.h	603 B	-rw-r--r--
wm8962.h	1.8 KB	-rw-r--r--
wm8993.h	1.19 KB	-rw-r--r--
wm8996.h	1.4 KB	-rw-r--r--
wm9081.h	661 B	-rw-r--r--
wm9090.h	780 B	-rw-r--r--
wss.h	8.44 KB	-rw-r--r--

Code Editor : compress_driver.h

/*
 *  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/core.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
 * @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
 * @private_data: driver private data pointer
 */
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 total_bytes_available;
	u64 total_bytes_transferred;
	wait_queue_head_t sleep;
	void *private_data;
};

/**
 * struct snd_compr_stream: compressed stream
 * @name: device name
 * @ops: pointer to DSP callbacks
 * @runtime: pointer to runtime structure
 * @device: device pointer
 * @error_work: delayed work used when closing the stream due to an error
 * @direction: stream direction, playback/recording
 * @metadata_set: metadata set flag, true when set
 * @next_track: has userspace signal next track transition, true when set
 * @partial_drain: undergoing partial_drain for stream, true when set
 * @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;
	struct delayed_work error_work;
	enum snd_compr_direction direction;
	bool metadata_set;
	bool next_track;
	bool partial_drain;
	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
 * @set_metadata: Set the metadata values for a stream
 * @get_metadata: retrieves the requested metadata values from stream
 * @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 (*set_metadata)(struct snd_compr_stream *stream,
			struct snd_compr_metadata *metadata);
	int (*get_metadata)(struct snd_compr_stream *stream,
			struct snd_compr_metadata *metadata);
	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, 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: associated device instance
 * @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;
#ifdef CONFIG_SND_VERBOSE_PROCFS
	/* private: */
	char id[64];
	struct snd_info_entry *proc_root;
	struct snd_info_entry *proc_info_entry;
#endif
};

/* 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, const char *id, 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);
}

static inline void snd_compr_drain_notify(struct snd_compr_stream *stream)
{
	if (snd_BUG_ON(!stream))
		return;

/* for partial_drain case we are back to running state on success */
	if (stream->partial_drain) {
		stream->runtime->state = SNDRV_PCM_STATE_RUNNING;
		stream->partial_drain = false; /* clear this flag as well */
	} else {
		stream->runtime->state = SNDRV_PCM_STATE_SETUP;
	}

wake_up(&stream->runtime->sleep);
}

int snd_compr_stop_error(struct snd_compr_stream *stream,
			 snd_pcm_state_t state);

#endif

${this.title}

Code Editor : compress_driver.h