- 09 6月, 2011 1 次提交
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由 Mika Westerberg 提交于
Now that we have the EP93xx DMA engine driver in place, we convert the ASoC drivers (I2S, AC97 and PCM) to take advantage of this new API. There are no functional changes. Signed-off-by: NMika Westerberg <mika.westerberg@iki.fi> Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: NLiam Girdwood <lrg@ti.com> Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: NVinod Koul <vinod.koul@intel.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 09 3月, 2011 2 次提交
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由 Alexander Sverdlin 提交于
Enable 192kHz sample rate for EP93xx. Signed-off-by: NAlexander Sverdlin <subaparts@yandex.ru> Acked-by: NLiam Girdwood <lrg@ti.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Alexander Sverdlin 提交于
Improve EP93xx I2S clocks management. Some freqs values are set not exact as they requested for MCLK and original code was not able to find divisors for SCLK and LRCLK. This code just picks up nearest value from 3 possible variants. This patch makes 44100 and 192000 rates working and fixes capture function (by selecting SCLK/LRCLK=64 where possible). All other rates should work as before. Signed-off-by: NAlexander Sverdlin <subaparts@yandex.ru> Acked-by: NLiam Girdwood <lrg@ti.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 08 3月, 2011 1 次提交
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由 Alexander Sverdlin 提交于
Remove warnings in ep93xx-i2s.c Signed-off-by: NAlexander Sverdlin <subaparts@yandex.ru> Acked-by: NRyan Mallon <ryan@bluewatersys.com> Acked-by: NLiam Girdwood <lrg@ti.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 17 1月, 2011 1 次提交
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由 Alexander Sverdlin 提交于
Changelog: 1. I2S module of EP93xx should be feed by 32bit DMA transfers. This is hardware limitation and that's the way original Cirrus's driver worked. This will fix distorted sound playback and make capture actually work in present ep93xx drivers. I've found, that author of code, on which modern ep93xx-i2s.c and ep93xx-pcm.c are based, had faced this problem also in 2007: http://blog.gmane.org/gmane.linux.ports.arm.cirrus/month=20070101/page=3 Now SoC code uses his developments, but not overcomes the hardware issues. Some details from EP93xx users guide: Both I2S transmitter and receiver have similar 16x32bit FIFO, where they store 8 samples for both left and right channels. The FIFO is always 32bit wide and should be properly aligned if you use samples of other width. Transmitter and receiver have configuration registers for selection of I2S word length (16, 24, 32). They are I2STXWrdLen and I2SRXWrdLen. Yes, EP93xx DMA can do byte, word and quad-word transfers. The width for transfers to and from peripherals is selected by particular module configuration. Lucky AC97 module has such configuration: AC97RXCRx registers, bit CM (Compact mode enable) switches between 16 and 32 bit samples. AC97TXCRx registers have the same bits for transmitters. ep93xx-ac97.c enables this compact mode and so has all the rights to use S16_LE format. No one has found such a configuration in I2S module until now in any Cirrus manuals. I2S module always feeds it's 32bit wide FIFO with 32bit samples consecutively for left and right channels. You cannot use 32-bit DMA transfers to transfer two 16-bit samples. So we can use two formats for AC97, but should remove all but S32_LE for I2S. Always using 32 bit chunks is not a problem for I2S, the codec I use uses less bits too (24), it's permitted by I2S standard. In proposed patch formats list shortened to just S32_LE, this makes all the DMA transactions right, while ALSA will do all sample format translation for us. 2. Incorrect setting of LRCLK (2 times slower) in original ep93xx-i2s.c masks the first problem. DMA takes two 16 bit samples instead of one, overall sound speed seems to be normal, but you get actually 4000 sampling rate instead of requested 8000 and therefore some noise... This is also the reason why the capture function not worked at all in this driver... If we take a look into I2S specification, we will figure that LRCLK MUST be equal to sample rate, if we are talking about stereo (in mono too, but it's not our case at all). In proposed patch SCLK and LRCLK rates are corrected, assuming we always send 32 bits * 2 channels to codec. Signed-off-by: NAlexander Sverdlin <subaparts@yandex.ru> Acked-by: NLiam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 09 12月, 2010 1 次提交
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由 Alexander Sverdlin 提交于
Changes to both I2S and PCM code: - Rates list extended up to 96kHz, it's tested on EDB9302 and works for both capture and playback. Signed-off-by: NAlexander Sverdlin <subaparts@yandex.ru> Acked-by: NLiam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 12 8月, 2010 1 次提交
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由 Liam Girdwood 提交于
This patch extends the ASoC API to allow sound cards to have more than one CODEC and more than one platform DMA controller. This is achieved by dividing some current ASoC structures that contain both driver data and device data into structures that only either contain device data or driver data. i.e. struct snd_soc_codec ---> struct snd_soc_codec (device data) +-> struct snd_soc_codec_driver (driver data) struct snd_soc_platform ---> struct snd_soc_platform (device data) +-> struct snd_soc_platform_driver (driver data) struct snd_soc_dai ---> struct snd_soc_dai (device data) +-> struct snd_soc_dai_driver (driver data) struct snd_soc_device ---> deleted This now allows ASoC to be more tightly aligned with the Linux driver model and also means that every ASoC codec, platform and (platform) DAI is a kernel device. ASoC component private data is now stored as device private data. The ASoC sound card struct snd_soc_card has also been updated to store lists of it's components rather than a pointer to a codec and platform. The PCM runtime struct soc_pcm_runtime now has pointers to all its components. This patch adds DAPM support for ASoC multi-component and removes struct snd_soc_socdev from DAPM core. All DAPM calls are now made on a card, codec or runtime PCM level basis rather than using snd_soc_socdev. Other notable multi-component changes:- * Stream operations now de-reference less structures. * close_delayed work() now runs on a DAI basis rather than looping all DAIs in a card. * PM suspend()/resume() operations can now handle N CODECs and Platforms per sound card. * Added soc_bind_dai_link() to bind the component devices to the sound card. * Added soc_dai_link_probe() and soc_dai_link_remove() to probe and remove DAI link components. * sysfs entries can now be registered per component per card. * snd_soc_new_pcms() functionailty rolled into dai_link_probe(). * snd_soc_register_codec() now does all the codec list and mutex init. This patch changes the probe() and remove() of the CODEC drivers as follows:- o Make CODEC driver a platform driver o Moved all struct snd_soc_codec list, mutex, etc initialiasation to core. o Removed all static codec pointers (drivers now support > 1 codec dev) o snd_soc_register_pcms() now done by core. o snd_soc_register_dai() folded into snd_soc_register_codec(). CS4270 portions: Acked-by: NTimur Tabi <timur@freescale.com> Some TLV320aic23 and Cirrus platform fixes. Signed-off-by: NRyan Mallon <ryan@bluewatersys.com> TI CODEC and OMAP fixes Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: NJanusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: NJarkko Nikula <jhnikula@gmail.com> Samsung platform and misc fixes :- Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com> Signed-off-by: NJoonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Reviewed-by: NJassi Brar <jassi.brar@samsung.com> Signed-off-by: NSeungwhan Youn <sw.youn@samsung.com> MPC8610 and PPC fixes. Signed-off-by: NTimur Tabi <timur@freescale.com> i.MX fixes and some core fixes. Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de> J4740 platform fixes:- Signed-off-by: NLars-Peter Clausen <lars@metafoo.de> CC: Tony Lindgren <tony@atomide.com> CC: Nicolas Ferre <nicolas.ferre@atmel.com> CC: Kevin Hilman <khilman@deeprootsystems.com> CC: Sascha Hauer <s.hauer@pengutronix.de> CC: Atsushi Nemoto <anemo@mba.ocn.ne.jp> CC: Kuninori Morimoto <morimoto.kuninori@renesas.com> CC: Daniel Gloeckner <dg@emlix.com> CC: Manuel Lauss <mano@roarinelk.homelinux.net> CC: Mike Frysinger <vapier.adi@gmail.com> CC: Arnaud Patard <apatard@mandriva.com> CC: Wan ZongShun <mcuos.com@gmail.com> Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NLiam Girdwood <lrg@slimlogic.co.uk>
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- 07 6月, 2010 1 次提交
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由 Ryan Mallon 提交于
Add ep93xx i2s audio driver Signed-off-by: NRyan Mallon <ryan@bluewatersys.com> Acked-by: NLiam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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