diff options
author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-23 19:26:00 +0100 |
---|---|---|
committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-23 19:26:00 +0100 |
commit | 9eb8ae727dcb9f2530a895ee6b3496592853709d (patch) | |
tree | 2d72cfcad6f9a79074eaf180033706fd8aa600b5 | |
parent | 5561f17f2629cdacf5bc43e0f839ca6434db2c20 (diff) | |
parent | 6f1fd93e304f6f4f8b841e1b0124f3ab4c85ba2e (diff) |
Merge remote-tracking branch 'asoc/topic/dma' into asoc-next
-rw-r--r-- | include/sound/dmaengine_pcm.h | 70 | ||||
-rw-r--r-- | include/sound/soc.h | 4 | ||||
-rw-r--r-- | sound/soc/Kconfig | 4 | ||||
-rw-r--r-- | sound/soc/Makefile | 4 | ||||
-rw-r--r-- | sound/soc/atmel/atmel-pcm-dma.c | 6 | ||||
-rw-r--r-- | sound/soc/cirrus/ep93xx-pcm.c | 5 | ||||
-rw-r--r-- | sound/soc/fsl/Kconfig | 2 | ||||
-rw-r--r-- | sound/soc/fsl/fsl_ssi.c | 19 | ||||
-rw-r--r-- | sound/soc/fsl/imx-pcm-dma.c | 76 | ||||
-rw-r--r-- | sound/soc/fsl/imx-pcm.c | 6 | ||||
-rw-r--r-- | sound/soc/fsl/imx-pcm.h | 5 | ||||
-rw-r--r-- | sound/soc/fsl/imx-ssi.c | 22 | ||||
-rw-r--r-- | sound/soc/mxs/Kconfig | 2 | ||||
-rw-r--r-- | sound/soc/mxs/mxs-pcm.c | 139 | ||||
-rw-r--r-- | sound/soc/mxs/mxs-saif.c | 3 | ||||
-rw-r--r-- | sound/soc/omap/omap-pcm.c | 7 | ||||
-rw-r--r-- | sound/soc/pxa/mmp-pcm.c | 5 | ||||
-rw-r--r-- | sound/soc/soc-core.c | 85 | ||||
-rw-r--r-- | sound/soc/soc-dmaengine-pcm.c | 82 | ||||
-rw-r--r-- | sound/soc/soc-generic-dmaengine-pcm.c | 300 | ||||
-rw-r--r-- | sound/soc/spear/spear_pcm.c | 5 | ||||
-rw-r--r-- | sound/soc/tegra/Kconfig | 2 | ||||
-rw-r--r-- | sound/soc/tegra/tegra_pcm.c | 171 | ||||
-rw-r--r-- | sound/soc/ux500/Kconfig | 2 | ||||
-rw-r--r-- | sound/soc/ux500/ux500_pcm.c | 159 |
25 files changed, 605 insertions, 580 deletions
diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h index 95620428a59b..f11c35cd5532 100644 --- a/include/sound/dmaengine_pcm.h +++ b/include/sound/dmaengine_pcm.h @@ -16,6 +16,7 @@ #define __SOUND_DMAENGINE_PCM_H__ #include <sound/pcm.h> +#include <sound/soc.h> #include <linux/dmaengine.h> /** @@ -39,9 +40,15 @@ snd_pcm_uframes_t snd_dmaengine_pcm_pointer(struct snd_pcm_substream *substream) snd_pcm_uframes_t snd_dmaengine_pcm_pointer_no_residue(struct snd_pcm_substream *substream); int snd_dmaengine_pcm_open(struct snd_pcm_substream *substream, - dma_filter_fn filter_fn, void *filter_data); + struct dma_chan *chan); int snd_dmaengine_pcm_close(struct snd_pcm_substream *substream); +int snd_dmaengine_pcm_open_request_chan(struct snd_pcm_substream *substream, + dma_filter_fn filter_fn, void *filter_data); +int snd_dmaengine_pcm_close_release_chan(struct snd_pcm_substream *substream); + +struct dma_chan *snd_dmaengine_pcm_request_channel(dma_filter_fn filter_fn, + void *filter_data); struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream); /** @@ -68,4 +75,65 @@ void snd_dmaengine_pcm_set_config_from_dai_data( const struct snd_dmaengine_dai_dma_data *dma_data, struct dma_slave_config *config); + +/* + * Try to request the DMA channel using compat_request_channel or + * compat_filter_fn if it couldn't be requested through devicetree. + */ +#define SND_DMAENGINE_PCM_FLAG_COMPAT BIT(0) +/* + * Don't try to request the DMA channels through devicetree. This flag only + * makes sense if SND_DMAENGINE_PCM_FLAG_COMPAT is set as well. + */ +#define SND_DMAENGINE_PCM_FLAG_NO_DT BIT(1) +/* + * The platforms dmaengine driver does not support reporting the amount of + * bytes that are still left to transfer. + */ +#define SND_DMAENGINE_PCM_FLAG_NO_RESIDUE BIT(2) +/* + * The PCM is half duplex and the DMA channel is shared between capture and + * playback. + */ +#define SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX BIT(3) + +/** + * struct snd_dmaengine_pcm_config - Configuration data for dmaengine based PCM + * @prepare_slave_config: Callback used to fill in the DMA slave_config for a + * PCM substream. Will be called from the PCM drivers hwparams callback. + * @compat_request_channel: Callback to request a DMA channel for platforms + * which do not use devicetree. + * @compat_filter_fn: Will be used as the filter function when requesting a + * channel for platforms which do not use devicetree. The filter parameter + * will be the DAI's DMA data. + * @pcm_hardware: snd_pcm_hardware struct to be used for the PCM. + * @prealloc_buffer_size: Size of the preallocated audio buffer. + * + * Note: If both compat_request_channel and compat_filter_fn are set + * compat_request_channel will be used to request the channel and + * compat_filter_fn will be ignored. Otherwise the channel will be requested + * using dma_request_channel with compat_filter_fn as the filter function. + */ +struct snd_dmaengine_pcm_config { + int (*prepare_slave_config)(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct dma_slave_config *slave_config); + struct dma_chan *(*compat_request_channel)( + struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_substream *substream); + dma_filter_fn compat_filter_fn; + + const struct snd_pcm_hardware *pcm_hardware; + unsigned int prealloc_buffer_size; +}; + +int snd_dmaengine_pcm_register(struct device *dev, + const struct snd_dmaengine_pcm_config *config, + unsigned int flags); +void snd_dmaengine_pcm_unregister(struct device *dev); + +int snd_dmaengine_pcm_prepare_slave_config(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct dma_slave_config *slave_config); + #endif diff --git a/include/sound/soc.h b/include/sound/soc.h index 9eb0e4db4835..85c15226103b 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -375,6 +375,10 @@ int snd_soc_poweroff(struct device *dev); int snd_soc_register_platform(struct device *dev, const struct snd_soc_platform_driver *platform_drv); void snd_soc_unregister_platform(struct device *dev); +int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, + const struct snd_soc_platform_driver *platform_drv); +void snd_soc_remove_platform(struct snd_soc_platform *platform); +struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev); int snd_soc_register_codec(struct device *dev, const struct snd_soc_codec_driver *codec_drv, struct snd_soc_dai_driver *dai_drv, int num_dai); diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig index 5da8ca7aee05..9e675c76436c 100644 --- a/sound/soc/Kconfig +++ b/sound/soc/Kconfig @@ -29,6 +29,10 @@ config SND_SOC_AC97_BUS config SND_SOC_DMAENGINE_PCM bool +config SND_SOC_GENERIC_DMAENGINE_PCM + bool + select SND_SOC_DMAENGINE_PCM + # All the supported SoCs source "sound/soc/atmel/Kconfig" source "sound/soc/au1x/Kconfig" diff --git a/sound/soc/Makefile b/sound/soc/Makefile index 99f32f7c0692..197b6ae54c8d 100644 --- a/sound/soc/Makefile +++ b/sound/soc/Makefile @@ -5,6 +5,10 @@ ifneq ($(CONFIG_SND_SOC_DMAENGINE_PCM),) snd-soc-core-objs += soc-dmaengine-pcm.o endif +ifneq ($(CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM),) +snd-soc-core-objs += soc-generic-dmaengine-pcm.o +endif + obj-$(CONFIG_SND_SOC) += snd-soc-core.o obj-$(CONFIG_SND_SOC) += codecs/ obj-$(CONFIG_SND_SOC) += generic/ diff --git a/sound/soc/atmel/atmel-pcm-dma.c b/sound/soc/atmel/atmel-pcm-dma.c index bb07989762d5..1d38fd0bc4e2 100644 --- a/sound/soc/atmel/atmel-pcm-dma.c +++ b/sound/soc/atmel/atmel-pcm-dma.c @@ -155,7 +155,7 @@ static int atmel_pcm_hw_params(struct snd_pcm_substream *substream, if (ssc->pdev) sdata = ssc->pdev->dev.platform_data; - ret = snd_dmaengine_pcm_open(substream, filter, sdata); + ret = snd_dmaengine_pcm_open_request_chan(substream, filter, sdata); if (ret) { pr_err("atmel-pcm: dmaengine pcm open failed\n"); return -EINVAL; @@ -171,7 +171,7 @@ static int atmel_pcm_hw_params(struct snd_pcm_substream *substream, return 0; err: - snd_dmaengine_pcm_close(substream); + snd_dmaengine_pcm_close_release_chan(substream); return ret; } @@ -197,7 +197,7 @@ static int atmel_pcm_open(struct snd_pcm_substream *substream) static struct snd_pcm_ops atmel_pcm_ops = { .open = atmel_pcm_open, - .close = snd_dmaengine_pcm_close, + .close = snd_dmaengine_pcm_close_release_chan, .ioctl = snd_pcm_lib_ioctl, .hw_params = atmel_pcm_hw_params, .prepare = atmel_pcm_dma_prepare, diff --git a/sound/soc/cirrus/ep93xx-pcm.c b/sound/soc/cirrus/ep93xx-pcm.c index 298946f790eb..488032690378 100644 --- a/sound/soc/cirrus/ep93xx-pcm.c +++ b/sound/soc/cirrus/ep93xx-pcm.c @@ -69,7 +69,8 @@ static int ep93xx_pcm_open(struct snd_pcm_substream *substream) snd_soc_set_runtime_hwparams(substream, &ep93xx_pcm_hardware); - return snd_dmaengine_pcm_open(substream, ep93xx_pcm_dma_filter, + return snd_dmaengine_pcm_open_request_chan(substream, + ep93xx_pcm_dma_filter, snd_soc_dai_get_dma_data(rtd->cpu_dai, substream)); } @@ -100,7 +101,7 @@ static int ep93xx_pcm_mmap(struct snd_pcm_substream *substream, static struct snd_pcm_ops ep93xx_pcm_ops = { .open = ep93xx_pcm_open, - .close = snd_dmaengine_pcm_close, + .close = snd_dmaengine_pcm_close_release_chan, .ioctl = snd_pcm_lib_ioctl, .hw_params = ep93xx_pcm_hw_params, .hw_free = ep93xx_pcm_hw_free, diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 3b98159d9645..3843a18d4e56 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -118,7 +118,7 @@ config SND_SOC_IMX_PCM_FIQ config SND_SOC_IMX_PCM_DMA bool - select SND_SOC_DMAENGINE_PCM + select SND_SOC_GENERIC_DMAENGINE_PCM select SND_SOC_IMX_PCM config SND_SOC_IMX_AUDMUX diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index 42366d776f62..0f0bed6def9e 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -425,12 +425,6 @@ static int fsl_ssi_startup(struct snd_pcm_substream *substream, ssi_private->second_stream = substream; } - if (ssi_private->ssi_on_imx) - snd_soc_dai_set_dma_data(dai, substream, - (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? - &ssi_private->dma_params_tx : - &ssi_private->dma_params_rx); - return 0; } @@ -552,6 +546,18 @@ static void fsl_ssi_shutdown(struct snd_pcm_substream *substream, } } +static int fsl_ssi_dai_probe(struct snd_soc_dai *dai) +{ + struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(dai); + + if (ssi_private->ssi_on_imx) { + dai->playback_dma_data = &ssi_private->dma_params_tx; + dai->capture_dma_data = &ssi_private->dma_params_rx; + } + + return 0; +} + static const struct snd_soc_dai_ops fsl_ssi_dai_ops = { .startup = fsl_ssi_startup, .hw_params = fsl_ssi_hw_params, @@ -561,6 +567,7 @@ static const struct snd_soc_dai_ops fsl_ssi_dai_ops = { /* Template for the CPU dai driver structure */ static struct snd_soc_dai_driver fsl_ssi_dai_template = { + .probe = fsl_ssi_dai_probe, .playback = { /* The SSI does not support monaural audio. */ .channels_min = 2, diff --git a/sound/soc/fsl/imx-pcm-dma.c b/sound/soc/fsl/imx-pcm-dma.c index ee838c8a3b11..c246fb514930 100644 --- a/sound/soc/fsl/imx-pcm-dma.c +++ b/sound/soc/fsl/imx-pcm-dma.c @@ -11,22 +11,12 @@ * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ -#include <linux/clk.h> -#include <linux/delay.h> -#include <linux/device.h> -#include <linux/dma-mapping.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/module.h> #include <linux/platform_device.h> -#include <linux/slab.h> #include <linux/dmaengine.h> #include <linux/types.h> #include <sound/core.h> -#include <sound/initval.h> #include <sound/pcm.h> -#include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/dmaengine_pcm.h> @@ -44,32 +34,7 @@ static bool filter(struct dma_chan *chan, void *param) return true; } -static int snd_imx_pcm_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream); - struct dma_slave_config slave_config; - int ret; - - ret = snd_hwparams_to_dma_slave_config(substream, params, &slave_config); - if (ret) - return ret; - - snd_dmaengine_pcm_set_config_from_dai_data(substream, - snd_soc_dai_get_dma_data(rtd->cpu_dai, substream), - &slave_config); - - ret = dmaengine_slave_config(chan, &slave_config); - if (ret) - return ret; - - snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); - - return 0; -} - -static struct snd_pcm_hardware snd_imx_hardware = { +static const struct snd_pcm_hardware imx_pcm_hardware = { .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP | @@ -88,33 +53,22 @@ static struct snd_pcm_hardware snd_imx_hardware = { .fifo_size = 0, }; -static int snd_imx_open(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - - snd_soc_set_runtime_hwparams(substream, &snd_imx_hardware); - - return snd_dmaengine_pcm_open(substream, filter, - snd_soc_dai_get_dma_data(rtd->cpu_dai, substream)); -} - -static struct snd_pcm_ops imx_pcm_ops = { - .open = snd_imx_open, - .close = snd_dmaengine_pcm_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = snd_imx_pcm_hw_params, - .trigger = snd_dmaengine_pcm_trigger, - .pointer = snd_dmaengine_pcm_pointer_no_residue, - .mmap = snd_imx_pcm_mmap, -}; - -static struct snd_soc_platform_driver imx_soc_platform_mx2 = { - .ops = &imx_pcm_ops, - .pcm_new = imx_pcm_new, - .pcm_free = imx_pcm_free, +static const struct snd_dmaengine_pcm_config imx_dmaengine_pcm_config = { + .pcm_hardware = &imx_pcm_hardware, + .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, + .compat_filter_fn = filter, + .prealloc_buffer_size = IMX_SSI_DMABUF_SIZE, }; int imx_pcm_dma_init(struct platform_device *pdev) { - return snd_soc_register_platform(&pdev->dev, &imx_soc_platform_mx2); + return snd_dmaengine_pcm_register(&pdev->dev, &imx_dmaengine_pcm_config, + SND_DMAENGINE_PCM_FLAG_NO_RESIDUE | + SND_DMAENGINE_PCM_FLAG_NO_DT | + SND_DMAENGINE_PCM_FLAG_COMPAT); +} + +void imx_pcm_dma_exit(struct platform_device *pdev) +{ + snd_dmaengine_pcm_unregister(&pdev->dev); } diff --git a/sound/soc/fsl/imx-pcm.c b/sound/soc/fsl/imx-pcm.c index 0d0625bfcb65..c49896442d8e 100644 --- a/sound/soc/fsl/imx-pcm.c +++ b/sound/soc/fsl/imx-pcm.c @@ -114,7 +114,11 @@ static int imx_pcm_probe(struct platform_device *pdev) static int imx_pcm_remove(struct platform_device *pdev) { - snd_soc_unregister_platform(&pdev->dev); + if (strcmp(pdev->id_entry->name, "imx-fiq-pcm-audio") == 0) + snd_soc_unregister_platform(&pdev->dev); + else + imx_pcm_dma_exit(pdev); + return 0; } diff --git a/sound/soc/fsl/imx-pcm.h b/sound/soc/fsl/imx-pcm.h index be9cc64a208b..b7fa0d75c687 100644 --- a/sound/soc/fsl/imx-pcm.h +++ b/sound/soc/fsl/imx-pcm.h @@ -39,11 +39,16 @@ void imx_pcm_free(struct snd_pcm *pcm); #ifdef CONFIG_SND_SOC_IMX_PCM_DMA int imx_pcm_dma_init(struct platform_device *pdev); +void imx_pcm_dma_exit(struct platform_device *pdev); #else static inline int imx_pcm_dma_init(struct platform_device *pdev) { return -ENODEV; } + +static inline void imx_pcm_dma_exit(struct platform_device *pdev) +{ +} #endif #ifdef CONFIG_SND_SOC_IMX_PCM_FIQ diff --git a/sound/soc/fsl/imx-ssi.c b/sound/soc/fsl/imx-ssi.c index 4ce2d608b37a..902fab02b851 100644 --- a/sound/soc/fsl/imx-ssi.c +++ b/sound/soc/fsl/imx-ssi.c @@ -232,23 +232,6 @@ static int imx_ssi_set_dai_clkdiv(struct snd_soc_dai *cpu_dai, return 0; } -static int imx_ssi_startup(struct snd_pcm_substream *substream, - struct snd_soc_dai *cpu_dai) -{ - struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai); - struct snd_dmaengine_dai_dma_data *dma_data; - - /* Tx/Rx config */ - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - dma_data = &ssi->dma_params_tx; - else - dma_data = &ssi->dma_params_rx; - - snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data); - - return 0; -} - /* * Should only be called when port is inactive (i.e. SSIEN = 0), * although can be called multiple times by upper layers. @@ -353,7 +336,6 @@ static int imx_ssi_trigger(struct snd_pcm_substream *substream, int cmd, } static const struct snd_soc_dai_ops imx_ssi_pcm_dai_ops = { - .startup = imx_ssi_startup, .hw_params = imx_ssi_hw_params, .set_fmt = imx_ssi_set_dai_fmt, .set_clkdiv = imx_ssi_set_dai_clkdiv, @@ -373,6 +355,10 @@ static int imx_ssi_dai_probe(struct snd_soc_dai *dai) SSI_SFCSR_RFWM0(ssi->dma_params_rx.maxburst); writel(val, ssi->base + SSI_SFCSR); + /* Tx/Rx config */ + dai->playback_dma_data = &ssi->dma_params_tx; + dai->capture_dma_data = &ssi->dma_params_rx; + return 0; } diff --git a/sound/soc/mxs/Kconfig b/sound/soc/mxs/Kconfig index b6fa77678d97..78d321cbe8b4 100644 --- a/sound/soc/mxs/Kconfig +++ b/sound/soc/mxs/Kconfig @@ -1,7 +1,7 @@ menuconfig SND_MXS_SOC tristate "SoC Audio for Freescale MXS CPUs" depends on ARCH_MXS - select SND_SOC_DMAENGINE_PCM + select SND_SOC_GENERIC_DMAENGINE_PCM help Say Y or M if you want to add support for codecs attached to the MXS SAIF interface. diff --git a/sound/soc/mxs/mxs-pcm.c b/sound/soc/mxs/mxs-pcm.c index ebbef8597554..b41fffc056fb 100644 --- a/sound/soc/mxs/mxs-pcm.c +++ b/sound/soc/mxs/mxs-pcm.c @@ -18,32 +18,24 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#include <linux/clk.h> -#include <linux/delay.h> #include <linux/device.h> -#include <linux/dma-mapping.h> #include <linux/init.h> -#include <linux/interrupt.h> #include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/slab.h> -#include <linux/dmaengine.h> #include <sound/core.h> -#include <sound/initval.h> #include <sound/pcm.h> -#include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/dmaengine_pcm.h> #include "mxs-pcm.h" -static struct snd_pcm_hardware snd_mxs_hardware = { +static const struct snd_pcm_hardware snd_mxs_hardware = { .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME | - SNDRV_PCM_INFO_INTERLEAVED, + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_HALF_DUPLEX, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, @@ -55,7 +47,6 @@ static struct snd_pcm_hardware snd_mxs_hardware = { .periods_max = 52, .buffer_bytes_max = 64 * 1024, .fifo_size = 32, - }; static bool filter(struct dma_chan *chan, void *param) @@ -73,129 +64,25 @@ static bool filter(struct dma_chan *chan, void *param) return true; } -static int snd_mxs_pcm_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) -{ - snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); - - return 0; -} - -static int snd_mxs_open(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - - snd_soc_set_runtime_hwparams(substream, &snd_mxs_hardware); - - return snd_dmaengine_pcm_open(substream, filter, - snd_soc_dai_get_dma_data(rtd->cpu_dai, substream)); -} - -static int snd_mxs_pcm_mmap(struct snd_pcm_substream *substream, - struct vm_area_struct *vma) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - - return dma_mmap_writecombine(substream->pcm->card->dev, vma, - runtime->dma_area, - runtime->dma_addr, - runtime->dma_bytes); -} - -static struct snd_pcm_ops mxs_pcm_ops = { - .open = snd_mxs_open, - .close = snd_dmaengine_pcm_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = snd_mxs_pcm_hw_params, - .trigger = snd_dmaengine_pcm_trigger, - .pointer = snd_dmaengine_pcm_pointer_no_residue, - .mmap = snd_mxs_pcm_mmap, -}; - -static int mxs_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream) -{ - struct snd_pcm_substream *substream = pcm->streams[stream].substream; - struct snd_dma_buffer *buf = &substream->dma_buffer; - size_t size = snd_mxs_hardware.buffer_bytes_max; - - buf->dev.type = SNDRV_DMA_TYPE_DEV; - buf->dev.dev = pcm->card->dev; - buf->private_data = NULL; - buf->area = dma_alloc_writecombine(pcm->card->dev, size, - &buf->addr, GFP_KERNEL); - if (!buf->area) - return -ENOMEM; - buf->bytes = size; - - return 0; -} - -static u64 mxs_pcm_dmamask = DMA_BIT_MASK(32); -static int mxs_pcm_new(struct snd_soc_pcm_runtime *rtd) -{ - struct snd_card *card = rtd->card->snd_card; - struct snd_pcm *pcm = rtd->pcm; - int ret = 0; - - if (!card->dev->dma_mask) - card->dev->dma_mask = &mxs_pcm_dmamask; - if (!card->dev->coherent_dma_mask) - card->dev->coherent_dma_mask = DMA_BIT_MASK(32); - - if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) { - ret = mxs_pcm_preallocate_dma_buffer(pcm, - SNDRV_PCM_STREAM_PLAYBACK); - if (ret) - goto out; - } - - if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) { - ret = mxs_pcm_preallocate_dma_buffer(pcm, - SNDRV_PCM_STREAM_CAPTURE); - if (ret) - goto out; - } - -out: - return ret; -} - -static void mxs_pcm_free(struct snd_pcm *pcm) -{ - struct snd_pcm_substream *substream; - struct snd_dma_buffer *buf; - int stream; - - for (stream = 0; stream < 2; stream++) { - substream = pcm->streams[stream].substream; - if (!substream) - continue; - - buf = &substream->dma_buffer; - if (!buf->area) - continue; - - dma_free_writecombine(pcm->card->dev, buf->bytes, - buf->area, buf->addr); - buf->area = NULL; - } -} - -static struct snd_soc_platform_driver mxs_soc_platform = { - .ops = &mxs_pcm_ops, - .pcm_new = mxs_pcm_new, - .pcm_free = mxs_pcm_free, +static const struct snd_dmaengine_pcm_config mxs_dmaengine_pcm_config = { + .pcm_hardware = &snd_mxs_hardware, + .compat_filter_fn = filter, + .prealloc_buffer_size = 64 * 1024, }; int mxs_pcm_platform_register(struct device *dev) { - return snd_soc_register_platform(dev, &mxs_soc_platform); + return snd_dmaengine_pcm_register(dev, &mxs_dmaengine_pcm_config, + SND_DMAENGINE_PCM_FLAG_NO_RESIDUE | + SND_DMAENGINE_PCM_FLAG_NO_DT | + SND_DMAENGINE_PCM_FLAG_COMPAT | + SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX); } EXPORT_SYMBOL_GPL(mxs_pcm_platform_register); void mxs_pcm_platform_unregister(struct device *dev) { - snd_soc_unregister_platform(dev); + snd_dmaengine_pcm_unregister(dev); } EXPORT_SYMBOL_GPL(mxs_pcm_platform_unregister); diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index abf4ddf4ed89..b563141a6543 100644 --- a/sound/soc/mxs/mxs-saif.c +++ b/sound/soc/mxs/mxs-saif.c @@ -369,7 +369,6 @@ static int mxs_saif_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai) { struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai); - snd_soc_dai_set_dma_data(cpu_dai, substream, &saif->dma_param); /* clear error status to 0 for each re-open */ saif->fifo_underrun = 0; @@ -605,6 +604,8 @@ static int mxs_saif_dai_probe(struct snd_soc_dai *dai) struct mxs_saif *saif = dev_get_drvdata(dai->dev); snd_soc_dai_set_drvdata(dai, saif); + dai->playback_dma_data = &saif->dma_param; + dai->capture_dma_data = &saif->dma_param; return 0; } diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c index c8e272f9c2de..c28e042f2208 100644 --- a/sound/soc/omap/omap-pcm.c +++ b/sound/soc/omap/omap-pcm.c @@ -118,8 +118,9 @@ static int omap_pcm_open(struct snd_pcm_substream *substream) dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - return snd_dmaengine_pcm_open(substream, omap_dma_filter_fn, - dma_data->filter_data); + return snd_dmaengine_pcm_open_request_chan(substream, + omap_dma_filter_fn, + dma_data->filter_data); } static int omap_pcm_mmap(struct snd_pcm_substream *substream, @@ -135,7 +136,7 @@ static int omap_pcm_mmap(struct snd_pcm_substream *substream, static struct snd_pcm_ops omap_pcm_ops = { .open = omap_pcm_open, - .close = snd_dmaengine_pcm_close, + .close = snd_dmaengine_pcm_close_release_chan, .ioctl = snd_pcm_lib_ioctl, .hw_params = omap_pcm_hw_params, .hw_free = omap_pcm_hw_free, diff --git a/sound/soc/pxa/mmp-pcm.c b/sound/soc/pxa/mmp-pcm.c index 6c3980252bf6..349930015264 100644 --- a/sound/soc/pxa/mmp-pcm.c +++ b/sound/soc/pxa/mmp-pcm.c @@ -131,7 +131,8 @@ static int mmp_pcm_open(struct snd_pcm_substream *substream) dma_data.dma_res = r; dma_data.ssp_id = cpu_dai->id; - return snd_dmaengine_pcm_open(substream, filter, &dma_data); + return snd_dmaengine_pcm_open_request_chan(substream, filter, + &dma_data); } static int mmp_pcm_mmap(struct snd_pcm_substream *substream, @@ -148,7 +149,7 @@ static int mmp_pcm_mmap(struct snd_pcm_substream *substream, struct snd_pcm_ops mmp_pcm_ops = { .open = mmp_pcm_open, - .close = snd_dmaengine_pcm_close, + .close = snd_dmaengine_pcm_close_release_chan, .ioctl = snd_pcm_lib_ioctl, .hw_params = mmp_pcm_hw_params, .trigger = snd_dmaengine_pcm_trigger, diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 7bf21a1035ea..d56bbea6e75e 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3900,21 +3900,14 @@ static void snd_soc_unregister_dais(struct device *dev, size_t count) } /** - * snd_soc_register_platform - Register a platform with the ASoC core - * - * @platform: platform to register + * snd_soc_add_platform - Add a platform to the ASoC core + * @dev: The parent device for the platform + * @platform: The platform to add + * @platform_driver: The driver for the platform */ -int snd_soc_register_platform(struct device *dev, +int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, const struct snd_soc_platform_driver *platform_drv) { - struct snd_soc_platform *platform; - - dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev)); - - platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); - if (platform == NULL) - return -ENOMEM; - /* create platform component name */ platform->name = fmt_single_name(dev, &platform->id); if (platform->name == NULL) { @@ -3937,30 +3930,76 @@ int snd_soc_register_platform(struct device *dev, return 0; } -EXPORT_SYMBOL_GPL(snd_soc_register_platform); +EXPORT_SYMBOL_GPL(snd_soc_add_platform); /** - * snd_soc_unregister_platform - Unregister a platform from the ASoC core + * snd_soc_register_platform - Register a platform with the ASoC core * - * @platform: platform to unregister + * @platform: platform to register */ -void snd_soc_unregister_platform(struct device *dev) +int snd_soc_register_platform(struct device *dev, + const struct snd_soc_platform_driver *platform_drv) { struct snd_soc_platform *platform; + int ret; - list_for_each_entry(platform, &platform_list, list) { - if (dev == platform->dev) - goto found; - } - return; + dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev)); -found: + platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); + if (platform == NULL) + return -ENOMEM; + + ret = snd_soc_add_platform(dev, platform, platform_drv); + if (ret) + kfree(platform); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_register_platform); + +/** + * snd_soc_remove_platform - Remove a platform from the ASoC core + * @platform: the platform to remove + */ +void snd_soc_remove_platform(struct snd_soc_platform *platform) +{ mutex_lock(&client_mutex); list_del(&platform->list); mutex_unlock(&client_mutex); - dev_dbg(dev, "ASoC: Unregistered platform '%s'\n", platform->name); + dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n", + platform->name); kfree(platform->name); +} +EXPORT_SYMBOL_GPL(snd_soc_remove_platform); + +struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev) +{ + struct snd_soc_platform *platform; + + list_for_each_entry(platform, &platform_list, list) { + if (dev == platform->dev) + return platform; + } + + return NULL; +} +EXPORT_SYMBOL_GPL(snd_soc_lookup_platform); + +/** + * snd_soc_unregister_platform - Unregister a platform from the ASoC core + * + * @platform: platform to unregister + */ +void snd_soc_unregister_platform(struct device *dev) +{ + struct snd_soc_platform *platform; + + platform = snd_soc_lookup_platform(dev); + if (!platform) + return; + + snd_soc_remove_platform(platform); kfree(platform); } EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); diff --git a/sound/soc/soc-dmaengine-pcm.c b/sound/soc/soc-dmaengine-pcm.c index a9a300acb506..aa924d9b7986 100644 --- a/sound/soc/soc-dmaengine-pcm.c +++ b/sound/soc/soc-dmaengine-pcm.c @@ -254,44 +254,48 @@ snd_pcm_uframes_t snd_dmaengine_pcm_pointer(struct snd_pcm_substream *substream) } EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_pointer); -static int dmaengine_pcm_request_channel(struct dmaengine_pcm_runtime_data *prtd, - dma_filter_fn filter_fn, void *filter_data) +/** + * snd_dmaengine_pcm_request_channel - Request channel for the dmaengine PCM + * @filter_fn: Filter function used to request the DMA channel + * @filter_data: Data passed to the DMA filter function + * + * Returns NULL or the requested DMA channel. + * + * This function request a DMA channel for usage with dmaengine PCM. + */ +struct dma_chan *snd_dmaengine_pcm_request_channel(dma_filter_fn filter_fn, + void *filter_data) { dma_cap_mask_t mask; d |