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https://github.com/torvalds/linux
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f0fba2ad1b
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 <timur@freescale.com>
Some TLV320aic23 and Cirrus platform fixes.
Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>
TI CODEC and OMAP fixes
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Samsung platform and misc fixes :-
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Seungwhan Youn <sw.youn@samsung.com>
MPC8610 and PPC fixes.
Signed-off-by: Timur Tabi <timur@freescale.com>
i.MX fixes and some core fixes.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
J4740 platform fixes:-
Signed-off-by: Lars-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: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
/*
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* Freescale MPC5200 Audio DMA driver
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*/
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#ifndef __SOUND_SOC_FSL_MPC5200_DMA_H__
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#define __SOUND_SOC_FSL_MPC5200_DMA_H__
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#define PSC_STREAM_NAME_LEN 32
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/**
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* psc_ac97_stream - Data specific to a single stream (playback or capture)
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* @active: flag indicating if the stream is active
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* @psc_dma: pointer back to parent psc_dma data structure
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* @bcom_task: bestcomm task structure
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* @irq: irq number for bestcomm task
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* @period_end: physical address of end of DMA region
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* @period_next_pt: physical address of next DMA buffer to enqueue
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* @period_bytes: size of DMA period in bytes
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* @ac97_slot_bits: Enable bits for turning on the correct AC97 slot
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*/
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struct psc_dma_stream {
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struct snd_pcm_runtime *runtime;
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int active;
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struct psc_dma *psc_dma;
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struct bcom_task *bcom_task;
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int irq;
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struct snd_pcm_substream *stream;
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int period_next;
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int period_current;
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int period_bytes;
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int period_count;
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/* AC97 state */
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u32 ac97_slot_bits;
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};
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/**
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* psc_dma - Private driver data
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* @name: short name for this device ("PSC0", "PSC1", etc)
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* @psc_regs: pointer to the PSC's registers
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* @fifo_regs: pointer to the PSC's FIFO registers
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* @irq: IRQ of this PSC
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* @dev: struct device pointer
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* @dai: the CPU DAI for this device
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* @sicr: Base value used in serial interface control register; mode is ORed
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* with this value.
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* @playback: Playback stream context data
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* @capture: Capture stream context data
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*/
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struct psc_dma {
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char name[32];
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struct mpc52xx_psc __iomem *psc_regs;
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struct mpc52xx_psc_fifo __iomem *fifo_regs;
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unsigned int irq;
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struct device *dev;
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spinlock_t lock;
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struct mutex mutex;
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u32 sicr;
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uint sysclk;
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int imr;
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int id;
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unsigned int slots;
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/* per-stream data */
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struct psc_dma_stream playback;
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struct psc_dma_stream capture;
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/* Statistics */
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struct {
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unsigned long overrun_count;
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unsigned long underrun_count;
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} stats;
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};
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/* Utility for retrieving psc_dma_stream structure from a substream */
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inline struct psc_dma_stream *
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to_psc_dma_stream(struct snd_pcm_substream *substream, struct psc_dma *psc_dma)
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{
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if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
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return &psc_dma->capture;
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return &psc_dma->playback;
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}
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#endif /* __SOUND_SOC_FSL_MPC5200_DMA_H__ */
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