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3528f27a5d
linux/include/sound
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Lars-Peter Clausen 3528f27a5d ASoC: dmaengine-pcm: Add support for querying stream position from DMA driver 
Currently the sound dmaengine pcm helper functions implement the pcm_pointer
callback by trying to count the number of elapsed periods. This is done by
advancing the stream position in the dmaengine callback by one period.
Unfortunately there is no guarantee that the callback will be called for each
elapsed period. It may be possible that under high system load it is only called
once for multiple elapsed periods. This patch addresses the issue by
implementing support for querying the current stream position directly from the
dmaengine driver. Since not all dmaengine drivers support reporting the stream
position yet the old period counting implementation is kept for now.

Furthermore the new mechanism allows to report the stream position with a
sub-period granularity, given that the dmaengine driver supports this.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-20 15:39:05 +01:00
..
ac97_codec.h Fix common misspellings 2011-03-31 11:26:23 -03:00
aci.h ALSA: opti-miro: expose ACI mixer to outside drivers 2009-11-23 09:41:55 +01:00
ad1816a.h ALSA: ad1816a: enable hardware timer 2009-01-21 15:12:40 +01:00
ad1843.h
adau1373.h ASoC: Add ADAU1373 codec support 2011-08-17 00:53:54 +09:00
ak4xxx-adda.h ALSA: ak4620 support, codec regs listed in proc 2009-09-21 15:44:51 +02:00
ak4113.h ALSA: i2c: cleanup: change parameter to pointer 2010-04-04 12:21:39 +02:00
ak4114.h ALSA: ak4114 - fix errors in output selector bits 2009-09-21 15:44:39 +02:00
ak4117.h
ak4531_codec.h
ak4641.h ASoC: Asahi Kasei AK4641 codec driver 2011-05-19 14:10:45 -07:00
alc5623.h ASoC: add support for alc562[123] codecs 2010-10-21 13:51:13 -07:00
asequencer.h
asound_fm.h
asound.h ALSA: Add definitions for CEA-861 Audio InfoFrames 2012-04-18 08:00:36 +02:00
asoundef.h ALSA: Add definitions for CEA-861 Audio InfoFrames 2012-04-18 08:00:36 +02:00
atmel-abdac.h ALSA: Add ALSA driver for Atmel Audio Bitstream DAC 2009-02-05 15:08:48 +01:00
atmel-ac97c.h ALSA: Add ALSA driver for Atmel AC97 controller 2009-02-05 15:08:51 +01:00
compress_driver.h ALSA: core: add API header and driver header files 2011-12-23 10:08:11 +01:00
compress_offload.h ALSA: core: add API header and driver header files 2011-12-23 10:08:11 +01:00
compress_params.h headers: include linux/types.h where appropriate 2012-03-23 16:58:31 -07:00
control.h Merge branch 'topic/asoc' into for-linus 2012-03-18 18:22:37 +01:00
core.h ALSA: hda - hide HDMI/ELD printks unless snd.debug=2 2012-04-10 14:53:55 +02:00
cs42l52.h ASoC: Add support for CS42L52 Codec 2012-04-30 23:36:20 +01:00
cs46xx_dsp_scb_types.h
cs46xx_dsp_spos.h Fix common misspellings 2011-03-31 11:26:23 -03:00
cs46xx_dsp_task_types.h
cs46xx.h
cs4231-regs.h ALSA: cs4236: update control names 2009-11-18 07:23:16 +01:00
cs4271.h ASoC: CS4271: Move Chip Select control out of the CODEC code. 2011-02-08 11:26:14 +00:00
cs8403.h
cs8427.h
dmaengine_pcm.h ASoC: dmaengine-pcm: Add support for querying stream position from DMA driver 2012-06-20 15:39:05 +01:00
emu10k1_synth.h
emu10k1.h ALSA: emu10k1: Fix warning: "CCR" redefined 2010-10-18 07:45:44 +02:00
emu8000_reg.h
emu8000.h
emux_legacy.h
emux_synth.h
es1688.h ALSA: Merge es1688 and es968 drivers 2010-05-10 09:49:30 +02:00
gus.h
hda_hwdep.h
hdsp.h ALSA: hdsp - Add support for RPM io box 2010-12-01 12:14:47 +01:00
hdspm.h Fix common misspellings 2011-03-31 11:26:23 -03:00
hwdep.h ALSA: hwdep - Fix coding style 2009-02-05 09:17:50 +01:00
i2c.h
info.h switch procfs to umode_t use 2012-01-03 22:54:56 -05:00
initval.h sound: irq: Remove IRQF_DISABLED 2011-09-22 11:19:20 +02:00
jack.h ALSA: Use a define for the number of jack switch types 2012-02-27 17:34:44 +01:00
Kbuild ALSA: export compress headers 2011-12-31 17:53:52 +01:00
l3.h ASoC: UDA134x codec driver 2008-11-17 11:45:39 +00:00
max9768.h ASoC: max9768: add driver for max9768 amplifier 2012-01-30 21:50:55 +00:00
max98088.h ASoC: Restore MAX98088 CODEC driver 2010-10-18 16:46:27 -07:00
max98095.h ASoC: max98095: Single bit bitfields should be unsigned 2012-05-13 23:33:53 +01:00
memalloc.h ALSA: Fix SG-buffer DMA with non-coherent architectures 2009-07-08 14:20:20 +02:00
minors.h ALSA: core: add support for compressed devices 2011-12-23 10:07:46 +01:00
mixer_oss.h ALSA: core: sparse cleanups 2011-02-14 17:10:11 +01:00
mpu401.h ALSA: mpu401: clean up interrupt specification 2011-09-14 11:00:51 +02:00
opl3.h
opl4.h
pcm_oss.h ALSA: pcm_lib - cleanup & merge hw_ptr update functions 2010-01-07 15:47:38 +01:00
pcm_params.h ALSA: Make pcm.h self-contained 2011-07-26 17:21:24 +02:00
pcm-indirect.h
pcm.h ALSA: pcm: Add debug-print helper function 2012-06-03 13:06:38 +01:00
pt2258.h
pxa2xx-lib.h [ARM] pxa: merge AC97 platform data structures 2009-04-15 10:54:06 +08:00
rawmidi.h ALSA: rawmidi - Use workq for event handling 2011-06-14 14:37:06 +02:00
s3c24xx_uda134x.h ASoC: Machine driver for for s3c24xx with uda134x 2008-11-17 11:45:53 +00:00
saif.h ASoC: mxs-saif: remove function in platform_data 2011-12-02 13:56:42 +08:00
sb16_csp.h ALSA: sb16 - Fix build errors on MIPS and others with 13bit ioctl size 2011-06-30 15:33:57 +02:00
sb.h ALSA: jazz16: Add support for Media Vision Jazz16 chipset 2009-12-21 12:09:22 +01:00
seq_device.h
seq_kernel.h treewide: use __printf not __attribute__((format(printf,...))) 2011-10-31 17:30:54 -07:00
seq_midi_emul.h
seq_midi_event.h
seq_oss_legacy.h
seq_oss.h
seq_virmidi.h
sfnt_info.h ALSA: Use define for ioctl definitions 2009-03-11 09:55:03 +01:00
sh_dac_audio.h ALSA: sh: add SuperH DAC audio driver for ALSA V4 2009-11-04 09:17:40 +01:00
sh_fsi.h ASoC: sh: fsi: enable chip specific data transfer mode 2012-05-19 19:41:45 +01:00
simple_card.h ASoC: add generic simple-card support 2012-04-13 11:29:25 +01:00
snd_wavefront.h ALSA: wss_lib: rename cs4231.h into wss.h 2008-08-06 15:39:47 +02:00
soc-dai.h ASoC: core: Allow DAIs to specify a base address 2012-05-02 15:42:27 +01:00
soc-dapm.h ASoC: core: Add widget SND_SOC_DAPM_CLOCK_SUPPLY 2012-06-03 13:06:38 +01:00
soc-dpcm.h ASoC: dpcm: Add bespoke trigger() 2012-04-26 17:48:42 +01:00
soc.h ASoC: core: Add single controls with specified range of values 2012-06-03 13:06:41 +01:00
soundfont.h treewide: fix potentially dangerous trailing ';' in #defined values/expressions 2011-07-21 14:10:00 +02:00
sta32x.h ASoC: sta32x: add workaround for ESD reset issue 2011-11-14 21:36:43 +00:00
tea575x-tuner.h [media] tea575x-tuner: update to latest V4L2 framework requirements 2012-03-19 11:27:21 -03:00
tea6330t.h
timer.h
tlv320aic3x.h ASoC: omap: Update e-mail address of Jarkko Nikula 2011-08-12 11:45:10 +09:00
tlv320aic32x4.h ASoC: Add TI tlv320aic32x4 codec support. 2011-03-04 18:21:08 +00:00
tlv320dac33-plat.h ASoC: tlv320dac33: Update e-mail address 2011-05-11 16:12:35 +01:00
tlv.h ALSA: tlv - Define numbers in sound/tlv.h 2010-10-17 10:46:14 +02:00
tpa6130a2-plat.h ASoC: tpa6130a2: Remove model_id from platform data 2011-09-21 16:07:45 +01:00
trident.h
uda134x.h ASoC: uda134x: replace a macro with a value in platform struct. 2010-06-25 12:29:01 +01:00
uda1380.h ASoC: UDA1380: refactor device registration 2009-06-15 21:54:48 +01:00
util_mem.h
version.h ALSA: Release v1.0.25 2012-01-25 10:19:35 +01:00
vx_core.h ALSA: Kill snd_assert() in other places 2008-08-13 11:46:40 +02:00
wavefront.h
wm1250-ev1.h ASoC: Add platform data for WM1250 EV1 GPIOs 2011-09-23 17:05:38 +01:00
wm2000.h ASoC: Add WM2000 driver 2010-02-12 10:31:06 +00:00
wm2200.h ASoC: wm2200: Add WM2200 CODEC driver 2012-01-26 16:07:55 +00:00
wm5100.h ASoC: Add WM5100 driver 2011-09-20 16:02:16 +01:00
wm8903.h ASoC: WM8903: Fix platform data gpio_cfg confusion 2011-12-06 10:29:22 +00:00
wm8904.h ASoC: Support GPIO based microphone detection for WM8904 2010-03-16 16:03:30 +00:00
wm8955.h ASoC: Add initial WM8955 CODEC driver 2009-12-18 13:06:47 +00:00
wm8960.h ASoC: Add support for WM8960 capless mode 2010-03-03 17:08:43 +00:00
wm8962.h ASoC: wm8962: Optimise power consumption for IN4 DC measurement usage 2012-01-24 21:19:45 +00:00
wm8993.h tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
wm8996.h ASoC: Rename WM8915 to WM8996 2011-08-08 14:30:37 +09:00
wm9081.h ASoC: Add platform data for WM9081 IRQ pin configuration 2011-03-01 23:30:53 +00:00
wm9090.h ASoC: Add WM9090 amplifier driver 2010-04-30 16:12:44 +01:00
wss.h ALSA: cs4236: detect chip in one pass 2009-11-05 18:10:25 +01:00
ymfpci.h ALSA: ymfpci - Fix legacy registers on S3/S4 resume 2012-03-13 08:12:33 +01:00