From f0fba2ad1b6b53d5360125c41953b7afcd6deff0 Mon Sep 17 00:00:00 2001 From: Liam Girdwood Date: Wed, 17 Mar 2010 20:15:21 +0000 Subject: ASoC: multi-component - ASoC Multi-Component Support 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: Timur Tabi Some TLV320aic23 and Cirrus platform fixes. Signed-off-by: Ryan Mallon TI CODEC and OMAP fixes Signed-off-by: Peter Ujfalusi Signed-off-by: Janusz Krzysztofik Signed-off-by: Jarkko Nikula Samsung platform and misc fixes :- Signed-off-by: Chanwoo Choi Signed-off-by: Joonyoung Shim Signed-off-by: Kyungmin Park Reviewed-by: Jassi Brar Signed-off-by: Seungwhan Youn MPC8610 and PPC fixes. Signed-off-by: Timur Tabi i.MX fixes and some core fixes. Signed-off-by: Sascha Hauer J4740 platform fixes:- Signed-off-by: Lars-Peter Clausen CC: Tony Lindgren CC: Nicolas Ferre CC: Kevin Hilman CC: Sascha Hauer CC: Atsushi Nemoto CC: Kuninori Morimoto CC: Daniel Gloeckner CC: Manuel Lauss CC: Mike Frysinger CC: Arnaud Patard CC: Wan ZongShun Acked-by: Mark Brown Signed-off-by: Liam Girdwood --- sound/soc/omap/omap-pcm.c | 47 ++++++++++++++++++++++++++++++++++------------- 1 file changed, 34 insertions(+), 13 deletions(-) (limited to 'sound/soc/omap/omap-pcm.c') diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c index 1e521904ea6..8caeb8d305c 100644 --- a/sound/soc/omap/omap-pcm.c +++ b/sound/soc/omap/omap-pcm.c @@ -101,9 +101,10 @@ static int omap_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_soc_pcm_runtime *rtd = substream->private_data; struct omap_runtime_data *prtd = runtime->private_data; struct omap_pcm_dma_data *dma_data; + int err = 0; - dma_data = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream); + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); /* return if this is a bufferless transfer e.g. * codec <--> BT codec or GSM modem -- lg FIXME */ @@ -374,14 +375,14 @@ static int omap_pcm_new(struct snd_card *card, struct snd_soc_dai *dai, if (!card->dev->coherent_dma_mask) card->dev->coherent_dma_mask = DMA_BIT_MASK(64); - if (dai->playback.channels_min) { + if (dai->driver->playback.channels_min) { ret = omap_pcm_preallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK); if (ret) goto out; } - if (dai->capture.channels_min) { + if (dai->driver->capture.channels_min) { ret = omap_pcm_preallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_CAPTURE); if (ret) @@ -392,25 +393,45 @@ out: return ret; } -struct snd_soc_platform omap_soc_platform = { - .name = "omap-pcm-audio", - .pcm_ops = &omap_pcm_ops, +static struct snd_soc_platform_driver omap_soc_platform = { + .ops = &omap_pcm_ops, .pcm_new = omap_pcm_new, .pcm_free = omap_pcm_free_dma_buffers, }; -EXPORT_SYMBOL_GPL(omap_soc_platform); -static int __init omap_soc_platform_init(void) +static __devinit int omap_pcm_probe(struct platform_device *pdev) +{ + return snd_soc_register_platform(&pdev->dev, + &omap_soc_platform); +} + +static int __devexit omap_pcm_remove(struct platform_device *pdev) +{ + snd_soc_unregister_platform(&pdev->dev); + return 0; +} + +static struct platform_driver omap_pcm_driver = { + .driver = { + .name = "omap-pcm-audio", + .owner = THIS_MODULE, + }, + + .probe = omap_pcm_probe, + .remove = __devexit_p(omap_pcm_remove), +}; + +static int __init snd_omap_pcm_init(void) { - return snd_soc_register_platform(&omap_soc_platform); + return platform_driver_register(&omap_pcm_driver); } -module_init(omap_soc_platform_init); +module_init(snd_omap_pcm_init); -static void __exit omap_soc_platform_exit(void) +static void __exit snd_omap_pcm_exit(void) { - snd_soc_unregister_platform(&omap_soc_platform); + platform_driver_unregister(&omap_pcm_driver); } -module_exit(omap_soc_platform_exit); +module_exit(snd_omap_pcm_exit); MODULE_AUTHOR("Jarkko Nikula "); MODULE_DESCRIPTION("OMAP PCM DMA module"); -- cgit v1.2.3-18-g5258