diff options
60 files changed, 900 insertions, 1083 deletions
diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h index b877334..b1d1150 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> /** @@ -32,9 +33,6 @@ snd_pcm_substream_to_dma_direction(const struct snd_pcm_substream *substream) return DMA_DEV_TO_MEM; } -void snd_dmaengine_pcm_set_data(struct snd_pcm_substream *substream, void *data); -void *snd_dmaengine_pcm_get_data(struct snd_pcm_substream *substream); - int snd_hwparams_to_dma_slave_config(const struct snd_pcm_substream *substream, const struct snd_pcm_hw_params *params, struct dma_slave_config *slave_config); int snd_dmaengine_pcm_trigger(struct snd_pcm_substream *substream, int cmd); @@ -42,9 +40,95 @@ 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); +/** + * struct snd_dmaengine_dai_dma_data - DAI DMA configuration data + * @addr: Address of the DAI data source or destination register. + * @addr_width: Width of the DAI data source or destination register. + * @maxburst: Maximum number of words(note: words, as in units of the + * src_addr_width member, not bytes) that can be send to or received from the + * DAI in one burst. + * @slave_id: Slave requester id for the DMA channel. + * @filter_data: Custom DMA channel filter data, this will usually be used when + * requesting the DMA channel. + */ +struct snd_dmaengine_dai_dma_data { + dma_addr_t addr; + enum dma_slave_buswidth addr_width; + u32 maxburst; + unsigned int slave_id; + void *filter_data; +}; + +void snd_dmaengine_pcm_set_config_from_dai_data( + const struct snd_pcm_substream *substream, + 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) + +/** + * 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 f619905..4429254 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -373,6 +373,10 @@ 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 5da8ca7..9e675c7 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 99f32f7..197b6ae 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 30184a4..1d38fd0 100644 --- a/sound/soc/atmel/atmel-pcm-dma.c +++ b/sound/soc/atmel/atmel-pcm-dma.c @@ -67,9 +67,10 @@ static const struct snd_pcm_hardware atmel_pcm_dma_hardware = { static void atmel_pcm_dma_irq(u32 ssc_sr, struct snd_pcm_substream *substream) { + struct snd_soc_pcm_runtime *rtd = substream->private_data; struct atmel_pcm_dma_params *prtd; - prtd = snd_dmaengine_pcm_get_data(substream); + prtd = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); if (ssc_sr & prtd->mask->ssc_error) { if (snd_pcm_running(substream)) @@ -104,15 +105,13 @@ static bool filter(struct dma_chan *chan, void *slave) } static int atmel_pcm_configure_dma(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) + struct snd_pcm_hw_params *params, struct atmel_pcm_dma_params *prtd) { - struct atmel_pcm_dma_params *prtd; struct ssc_device *ssc; struct dma_chan *dma_chan; struct dma_slave_config slave_config; int ret; - prtd = snd_dmaengine_pcm_get_data(substream); ssc = prtd->ssc; ret = snd_hwparams_to_dma_slave_config(substream, params, @@ -130,8 +129,6 @@ static int atmel_pcm_configure_dma(struct snd_pcm_substream *substream, slave_config.src_maxburst = 1; } - slave_config.device_fc = false; - dma_chan = snd_dmaengine_pcm_get_chan(substream); if (dmaengine_slave_config(dma_chan, &slave_config)) { pr_err("atmel-pcm: failed to configure dma channel\n"); @@ -158,15 +155,13 @@ 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; } - snd_dmaengine_pcm_set_data(substream, prtd); - - ret = atmel_pcm_configure_dma(substream, params); + ret = atmel_pcm_configure_dma(substream, params, prtd); if (ret) { pr_err("atmel-pcm: failed to configure dmai\n"); goto err; @@ -176,15 +171,16 @@ 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; } static int atmel_pcm_dma_prepare(struct snd_pcm_substream *substream) { + struct snd_soc_pcm_runtime *rtd = substream->private_data; struct atmel_pcm_dma_params *prtd; - prtd = snd_dmaengine_pcm_get_data(substream); + prtd = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); ssc_writex(prtd->ssc->regs, SSC_IER, prtd->mask->ssc_error); ssc_writex(prtd->ssc->regs, SSC_CR, prtd->mask->ssc_enable); @@ -199,16 +195,9 @@ static int atmel_pcm_open(struct snd_pcm_substream *substream) return 0; } -static int atmel_pcm_close(struct snd_pcm_substream *substream) -{ - snd_dmaengine_pcm_close(substream); - - return 0; -} - static struct snd_pcm_ops atmel_pcm_ops = { .open = atmel_pcm_open, - .close = atmel_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/edb93xx.c b/sound/soc/cirrus/edb93xx.c index 5db68cf..c43fb21 100644 --- a/sound/soc/cirrus/edb93xx.c +++ b/sound/soc/cirrus/edb93xx.c @@ -27,7 +27,6 @@ #include <sound/soc.h> #include <asm/mach-types.h> #include <mach/hardware.h> -#include "ep93xx-pcm.h" static int edb93xx_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) diff --git a/sound/soc/cirrus/ep93xx-ac97.c b/sound/soc/cirrus/ep93xx-ac97.c index 1738d28..8d30886 100644 --- a/sound/soc/cirrus/ep93xx-ac97.c +++ b/sound/soc/cirrus/ep93xx-ac97.c @@ -23,7 +23,6 @@ #include <sound/soc.h> #include <linux/platform_data/dma-ep93xx.h> -#include "ep93xx-pcm.h" /* * Per channel (1-4) registers. @@ -101,14 +100,16 @@ struct ep93xx_ac97_info { /* currently ALSA only supports a single AC97 device */ static struct ep93xx_ac97_info *ep93xx_ac97_info; -static struct ep93xx_pcm_dma_params ep93xx_ac97_pcm_out = { +static struct ep93xx_dma_data ep93xx_ac97_pcm_out = { .name = "ac97-pcm-out", .dma_port = EP93XX_DMA_AAC1, + .direction = DMA_MEM_TO_DEV, }; -static struct ep93xx_pcm_dma_params ep93xx_ac97_pcm_in = { +static struct ep93xx_dma_data ep93xx_ac97_pcm_in = { .name = "ac97-pcm-in", .dma_port = EP93XX_DMA_AAC1, + .direction = DMA_DEV_TO_MEM, }; static inline unsigned ep93xx_ac97_read_reg(struct ep93xx_ac97_info *info, @@ -316,7 +317,7 @@ static int ep93xx_ac97_trigger(struct snd_pcm_substream *substream, static int ep93xx_ac97_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { - struct ep93xx_pcm_dma_params *dma_data; + struct ep93xx_dma_data *dma_data; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) dma_data = &ep93xx_ac97_pcm_out; diff --git a/sound/soc/cirrus/ep93xx-i2s.c b/sound/soc/cirrus/ep93xx-i2s.c index 323ed69..83075b3 100644 --- a/sound/soc/cirrus/ep93xx-i2s.c +++ b/sound/soc/cirrus/ep93xx-i2s.c @@ -30,8 +30,6 @@ #include <mach/ep93xx-regs.h> #include <linux/platform_data/dma-ep93xx.h> -#include "ep93xx-pcm.h" - #define EP93XX_I2S_TXCLKCFG 0x00 #define EP93XX_I2S_RXCLKCFG 0x04 #define EP93XX_I2S_GLCTRL 0x0C @@ -62,18 +60,20 @@ struct ep93xx_i2s_info { struct clk *mclk; struct clk *sclk; struct clk *lrclk; - struct ep93xx_pcm_dma_params *dma_params; + struct ep93xx_dma_data *dma_data; void __iomem *regs; }; -struct ep93xx_pcm_dma_params ep93xx_i2s_dma_params[] = { +struct ep93xx_dma_data ep93xx_i2s_dma_data[] = { [SNDRV_PCM_STREAM_PLAYBACK] = { .name = "i2s-pcm-out", - .dma_port = EP93XX_DMA_I2S1, + .port = EP93XX_DMA_I2S1, + .direction = DMA_MEM_TO_DEV, }, [SNDRV_PCM_STREAM_CAPTURE] = { .name = "i2s-pcm-in", - .dma_port = EP93XX_DMA_I2S1, + .port = EP93XX_DMA_I2S1, + .direction = DMA_DEV_TO_MEM, }, }; @@ -147,7 +147,7 @@ static int ep93xx_i2s_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai = rtd->cpu_dai; snd_soc_dai_set_dma_data(cpu_dai, substream, - &info->dma_params[substream->stream]); + &info->dma_data[substream->stream]); return 0; } @@ -403,7 +403,7 @@ static int ep93xx_i2s_probe(struct platform_device *pdev) } dev_set_drvdata(&pdev->dev, info); - info->dma_params = ep93xx_i2s_dma_params; + info->dma_data = ep93xx_i2s_dma_data; err = snd_soc_register_dai(&pdev->dev, &ep93xx_i2s_dai); if (err) diff --git a/sound/soc/cirrus/ep93xx-pcm.c b/sound/soc/cirrus/ep93xx-pcm.c index 72eb7a4..4880326 100644 --- a/sound/soc/cirrus/ep93xx-pcm.c +++ b/sound/soc/cirrus/ep93xx-pcm.c @@ -29,8 +29,6 @@ #include <mach/hardware.h> #include <mach/ep93xx-regs.h> -#include "ep93xx-pcm.h" - static const struct snd_pcm_hardware ep93xx_pcm_hardware = { .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | @@ -68,40 +66,12 @@ static bool ep93xx_pcm_dma_filter(struct dma_chan *chan, void *filter_param) static int ep93xx_pcm_open(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct ep93xx_pcm_dma_params *dma_params; - struct ep93xx_dma_data *dma_data; - int ret; snd_soc_set_runtime_hwparams(substream, &ep93xx_pcm_hardware); - dma_data = kmalloc(sizeof(*dma_data), GFP_KERNEL); - if (!dma_data) - return -ENOMEM; - - dma_params = snd_soc_dai_get_dma_data(cpu_dai, substream); - dma_data->port = dma_params->dma_port; - dma_data->name = dma_params->name; - dma_data->direction = snd_pcm_substream_to_dma_direction(substream); - - ret = snd_dmaengine_pcm_open(substream, ep93xx_pcm_dma_filter, dma_data); - if (ret) { - kfree(dma_data); - return ret; - } - - snd_dmaengine_pcm_set_data(substream, dma_data); - - return 0; -} - -static int ep93xx_pcm_close(struct snd_pcm_substream *substream) -{ - struct dma_data *dma_data = snd_dmaengine_pcm_get_data(substream); - - snd_dmaengine_pcm_close(substream); - kfree(dma_data); - return 0; + return snd_dmaengine_pcm_open_request_chan(substream, + ep93xx_pcm_dma_filter, + snd_soc_dai_get_dma_data(rtd->cpu_dai, substream)); } static int ep93xx_pcm_hw_params(struct snd_pcm_substream *substream, @@ -131,7 +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 = ep93xx_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/cirrus/ep93xx-pcm.h b/sound/soc/cirrus/ep93xx-pcm.h deleted file mode 100644 index 111e112..0000000 --- a/sound/soc/cirrus/ep93xx-pcm.h +++ /dev/null @@ -1,20 +0,0 @@ -/* - * sound/soc/ep93xx/ep93xx-pcm.h - EP93xx ALSA PCM interface - * - * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> - * Copyright (C) 2006 Applied Data Systems - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef _EP93XX_SND_SOC_PCM_H -#define _EP93XX_SND_SOC_PCM_H - -struct ep93xx_pcm_dma_params { - char *name; - int dma_port; -}; - -#endif /* _EP93XX_SND_SOC_PCM_H */ diff --git a/sound/soc/cirrus/simone.c b/sound/soc/cirrus/simone.c index a397bb0..4d094d0 100644 --- a/sound/soc/cirrus/simone.c +++ b/sound/soc/cirrus/simone.c @@ -21,8 +21,6 @@ #include <asm/mach-types.h> #include <mach/hardware.h> -#include "ep93xx-pcm.h" - static struct snd_soc_dai_link simone_dai = { .name = "AC97", .stream_name = "AC97 HiFi", diff --git a/sound/soc/cirrus/snappercl15.c b/sound/soc/cirrus/snappercl15.c index 9d77fe2..6904107 100644 --- a/sound/soc/cirrus/snappercl15.c +++ b/sound/soc/cirrus/snappercl15.c @@ -21,7 +21,6 @@ #include <mach/hardware.h> #include "../codecs/tlv320aic23.h" -#include "ep93xx-pcm.h" #define CODEC_CLOCK 5644800 diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 3b98159..3843a18 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 7decbd9..ab27ffa 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -27,6 +27,7 @@ #include <sound/pcm_params.h> #include <sound/initval.h> #include <sound/soc.h> +#include <sound/dmaengine_pcm.h> #include "fsl_ssi.h" #include "imx-pcm.h" @@ -122,8 +123,10 @@ struct fsl_ssi_private { bool ssi_on_imx; struct clk *clk; struct platform_device *imx_pcm_pdev; - struct imx_pcm_dma_params dma_params_tx; - struct imx_pcm_dma_params dma_params_rx; + struct snd_dmaengine_dai_dma_data dma_params_tx; + struct snd_dmaengine_dai_dma_data dma_params_rx; + struct imx_dma_data filter_data_tx; + struct imx_dma_data filter_data_rx; struct { unsigned int rfrc; @@ -422,12 +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; } @@ -549,6 +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, @@ -558,6 +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, @@ -649,6 +659,7 @@ static int fsl_ssi_probe(struct platform_device *pdev) const uint32_t *iprop; struct resource res; char name[64]; + bool shared; /* SSIs that are not connected on the board should have a * status = "disabled" @@ -737,14 +748,18 @@ static int fsl_ssi_probe(struct platform_device *pdev) * We have burstsize be "fifo_depth - 2" to match the SSI * watermark setting in fsl_ssi_startup(). */ - ssi_private->dma_params_tx.burstsize = + ssi_private->dma_params_tx.maxburst = ssi_private->fifo_depth - 2; - ssi_private->dma_params_rx.burstsize = + ssi_private->dma_params_rx.maxburst = ssi_private->fifo_depth - 2; - ssi_private->dma_params_tx.dma_addr = + ssi_private->dma_params_tx.addr = ssi_private->ssi_phys + offsetof(struct ccsr_ssi, stx0); - ssi_private->dma_params_rx.dma_addr = + ssi_private->dma_params_rx.addr = ssi_private->ssi_phys + offsetof(struct ccsr_ssi, srx0); + ssi_private->dma_params_tx.filter_data = + &ssi_private->filter_data_tx; + ssi_private->dma_params_rx.filter_data = + &ssi_private->filter_data_rx; /* * TODO: This is a temporary solution and should be changed * to use generic DMA binding later when the helplers get in. @@ -755,14 +770,14 @@ static int fsl_ssi_probe(struct platform_device *pdev) dev_err(&pdev->dev, "could not get dma events\n"); goto error_clk; } - ssi_private->dma_params_tx.dma = dma_events[0]; - ssi_private->dma_params_rx.dma = dma_events[1]; - - ssi_private->dma_params_tx.shared_peripheral = - of_device_is_compatible(of_get_parent(np), - "fsl,spba-bus"); - ssi_private->dma_params_rx.shared_peripheral = - ssi_private->dma_params_tx.shared_peripheral; + + shared = of_device_is_compatible(of_get_parent(np), + "fsl,spba-bus"); + + imx_pcm_dma_params_init_data(&ssi_private->filter_data_tx, + dma_events[0], shared); + imx_pcm_dma_params_init_data(&ssi_private->filter_data_rx, + dma_events[1], shared); } /* Initialize the the device_attribute structure */ diff --git a/sound/soc/fsl/imx-pcm-dma.c b/sound/soc/fsl/imx-pcm-dma.c index 500f8ce..c246fb5 100644 --- a/sound/soc/fsl/imx-pcm-dma.c +++ b/sound/soc/fsl/imx-pcm-dma.c @@ -11,74 +11,30 @@ * 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> -#include <linux/platform_data/dma-imx.h> - #include "imx-pcm.h" static bool filter(struct dma_chan *chan, void *param) { + struct snd_dmaengine_dai_dma_data *dma_data = param; + if (!imx_dma_is_general_purpose(chan)) return false; - chan->private = param; + chan->private = dma_data->filter_data; 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 imx_pcm_dma_params *dma_params; - struct dma_slave_config slave_config; - int ret; - - dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - - ret = snd_hwparams_to_dma_slave_config(substream, params, &slave_config); - if (ret) - return ret; - - slave_config.device_fc = false; - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - slave_config.dst_addr = dma_params->dma_addr; - slave_config.dst_maxburst = dma_params->burstsize; - } else { - slave_config.src_addr = dma_params->dma_addr; - slave_config.src_maxburst = dma_params->burstsize; - } - - 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 | @@ -97,64 +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; - struct imx_pcm_dma_params *dma_params; - struct imx_dma_data *dma_data; - int ret; - - snd_soc_set_runtime_hwparams(substream, &snd_imx_hardware); - - dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - - dma_data = kzalloc(sizeof(*dma_data), GFP_KERNEL); - if (!dma_data) - return -ENOMEM; - - dma_data->peripheral_type = dma_params->shared_peripheral ? - IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI; - dma_data->priority = DMA_PRIO_HIGH; - dma_data->dma_request = dma_params->dma; - - ret = snd_dmaengine_pcm_open(substream, filter, dma_data); - if (ret) { - kfree(dma_data); - return ret; - } - - snd_dmaengine_pcm_set_data(substream, dma_data); - - return 0; -} +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, +}; -static int snd_imx_close(struct snd_pcm_substream *substream) +int imx_pcm_dma_init(struct platform_device *pdev) { - struct imx_dma_data *dma_data = snd_dmaengine_pcm_get_data(substream); - - snd_dmaengine_pcm_close(substream); - kfree(dma_data); - - return 0; + 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); } -static struct snd_pcm_ops imx_pcm_ops = { - .open = snd_imx_open, - .close = snd_imx_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, -}; - -int imx_pcm_dma_init(struct platform_device *pdev) +void imx_pcm_dma_exit(struct platform_device *pdev) { - return snd_soc_register_platform(&pdev->dev, &imx_soc_platform_mx2); + snd_dmaengine_pcm_unregister(&pdev->dev); } diff --git a/sound/soc/fsl/imx-pcm-fiq.c b/sound/soc/fsl/imx-pcm-fiq.c index 920f945..025d0d9 100644 --- a/sound/soc/fsl/imx-pcm-fiq.c +++ b/sound/soc/fsl/imx-pcm-fiq.c @@ -299,8 +299,8 @@ int imx_pcm_fiq_init(struct platform_device *pdev) imx_ssi_fiq_base = (unsigned long)ssi->base; - ssi->dma_params_tx.burstsize = 4; - ssi->dma_params_rx.burstsize = 6; + ssi->dma_params_tx.maxburst = 4; + ssi->dma_params_rx.maxburst = 6; ret = snd_soc_register_platform(&pdev->dev, &imx_soc_platform_fiq); if (ret) diff --git a/sound/soc/fsl/imx-pcm.c b/sound/soc/fsl/imx-pcm.c index 0d0625b..c498964 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 5ae13a1..b7fa0d7 100644 --- a/sound/soc/fsl/imx-pcm.h +++ b/sound/soc/fsl/imx-pcm.h @@ -13,17 +13,24 @@ #ifndef _IMX_PCM_H #define _IMX_PCM_H +#include <linux/platform_data/dma-imx.h> + /* * Do not change this as the FIQ handler depends on this size */ #define IMX_SSI_DMABUF_SIZE (64 * 1024) -struct imx_pcm_dma_params { - int dma; - unsigned long dma_addr; - int burstsize; - bool shared_peripheral; /* The peripheral is on SPBA bus */ -}; +static inline void +imx_pcm_dma_params_init_data(struct imx_dma_data *dma_data, + int dma, bool shared) +{ + dma_data->dma_request = dma; + dma_data->priority = DMA_PRIO_HIGH; + if (shared) + dma_data->peripheral_type = IMX_DMATYPE_SSI_SP; + else + dma_data->peripheral_type = IMX_DMATYPE_SSI; +} int snd_imx_pcm_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *vma); @@ -32,11 +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 810c7ee..9128b7b 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 imx_pcm_dma_params *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, @@ -369,10 +351,14 @@ static int imx_ssi_dai_probe(struct snd_soc_dai *dai) snd_soc_dai_set_drvdata(dai, ssi); - val = SSI_SFCSR_TFWM0(ssi->dma_params_tx.burstsize) | - SSI_SFCSR_RFWM0(ssi->dma_params_rx.burstsize); + val = SSI_SFCSR_TFWM0(ssi->dma_params_tx.maxburst) | + 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; } @@ -575,19 +561,26 @@ static int imx_ssi_probe(struct platform_device *pdev) writel(0x0, ssi->base + SSI_SIER); - ssi->dma_params_rx.dma_addr = res->start + SSI_SRX0; - ssi->dma_params_tx.dma_addr = res->start + SSI_STX0; + ssi->dma_params_rx.addr = res->start + SSI_SRX0; + ssi->dma_params_tx.addr = res->start + SSI_STX0; + + ssi->dma_params_tx.maxburst = 6; + ssi->dma_params_rx.maxburst = 4; - ssi->dma_params_tx.burstsize = 6; - ssi->dma_params_rx.burstsize = 4; + ssi->dma_params_tx.filter_data = &ssi->filter_data_tx; + ssi->dma_params_rx.filter_data = &ssi->filter_data_rx; res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx0"); - if (res) - ssi->dma_params_tx.dma = res->start; + if (res) { + imx_pcm_dma_params_init_data(&ssi->filter_data_tx, res->start, + false); + } res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx0"); - if (res) - ssi->dma_params_rx.dma = res->start; + if (res) { + imx_pcm_dma_params_init_data(&ssi->filter_data_rx, res->start, + false); + } platform_set_drvdata(pdev, ssi); diff --git a/sound/soc/fsl/imx-ssi.h b/sound/soc/fsl/imx-ssi.h index dc114bd..bb6b3db 100644 --- a/sound/soc/fsl/imx-ssi.h +++ b/sound/soc/fsl/imx-ssi.h @@ -187,6 +187,7 @@ #include <linux/dmaengine.h> #include <linux/platform_data/dma-imx.h> +#include <sound/dmaengine_pcm.h> #include "imx-pcm.h" struct imx_ssi { @@ -204,8 +205,10 @@ struct imx_ssi { void (*ac97_reset) (struct snd_ac97 *ac97); void (*ac97_warm_reset)(struct snd_ac97 *ac97); - struct imx_pcm_dma_params dma_params_rx; - struct imx_pcm_dma_params dma_params_tx; + struct snd_dmaengine_dai_dma_data dma_params_rx; + struct snd_dmaengine_dai_dma_data dma_params_tx; + struct imx_dma_data filter_data_tx; + struct imx_dma_data filter_data_rx; int enabled; diff --git a/sound/soc/mxs/mxs-pcm.c b/sound/soc/mxs/mxs-pcm.c index 564b5b6..7bceb16 100644 --- a/sound/soc/mxs/mxs-pcm.c +++ b/sound/soc/mxs/mxs-pcm.c @@ -28,7 +28,6 @@ #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/dmaengine.h> -#include <linux/fsl/mxs-dma.h> #include <sound/core.h> #include <sound/initval.h> @@ -39,11 +38,6 @@ #include "mxs-pcm.h" -struct mxs_pcm_dma_data { - struct mxs_dma_data dma_data; - struct mxs_pcm_dma_params *dma_params; -}; - static struct snd_pcm_hardware snd_mxs_hardware = { .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | @@ -66,8 +60,7 @@ static struct snd_pcm_hardware snd_mxs_hardware = { static bool filter(struct dma_chan *chan, void *param) { - struct mxs_pcm_dma_data *pcm_dma_data = param; - struct mxs_pcm_dma_params *dma_params = pcm_dma_data->dma_params; + struct mxs_pcm_dma_params *dma_params = param; if (!mxs_dma_is_apbx(chan)) return false; @@ -75,7 +68,7 @@ static bool filter(struct dma_chan *chan, void *param) if (chan->chan_id != dma_params->chan_num) return false; - chan->private = &pcm_dma_data->dma_data; + chan->private = &dma_params->dma_data; return true; } @@ -91,37 +84,11 @@ static int snd_mxs_pcm_hw_params(struct snd_pcm_substream *substream, static int snd_mxs_open(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct mxs_pcm_dma_data *pcm_dma_data; - int ret; - - pcm_dma_data = kzalloc(sizeof(*pcm_dma_data), GFP_KERNEL); - if (pcm_dma_data == NULL) - return -ENOMEM; - - pcm_dma_data->dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - pcm_dma_data->dma_data.chan_irq = pcm_dma_data->dma_params->chan_irq; - - ret = snd_dmaengine_pcm_open(substream, filter, pcm_dma_data); - if (ret) { - kfree(pcm_dma_data); - return ret; - } snd_soc_set_runtime_hwparams(substream, &snd_mxs_hardware); - snd_dmaengine_pcm_set_data(substream, pcm_dma_data); - - return 0; -} - -static int snd_mxs_close(struct snd_pcm_substream *substream) -{ - struct mxs_pcm_dma_data *pcm_dma_data = snd_dmaengine_pcm_get_data(substream); - - snd_dmaengine_pcm_close(substream); - kfree(pcm_dma_data); - - return 0; + return snd_dmaengine_pcm_open_request_chan(substream, filter, + snd_soc_dai_get_dma_data(rtd->cpu_dai, substream)); } static int snd_mxs_pcm_mmap(struct snd_pcm_substream *substream, @@ -137,7 +104,7 @@ static int snd_mxs_pcm_mmap(struct snd_pcm_substream *substream, static struct snd_pcm_ops mxs_pcm_ops = { .open = snd_mxs_open, - .close = snd_mxs_close, + .close = snd_dmaengine_pcm_close_release_chan, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_mxs_pcm_hw_params, .trigger = snd_dmaengine_pcm_trigger, diff --git a/sound/soc/mxs/mxs-pcm.h b/sound/soc/mxs/mxs-pcm.h index 35ba2ca..3aa918f 100644 --- a/sound/soc/mxs/mxs-pcm.h +++ b/sound/soc/mxs/mxs-pcm.h @@ -19,8 +19,10 @@ #ifndef _MXS_PCM_H #define _MXS_PCM_H +#include <linux/fsl/mxs-dma.h> + struct mxs_pcm_dma_params { - int chan_irq; + struct mxs_dma_data dma_data; int chan_num; }; diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index 3a2aa1d..f13bd87 100644 --- a/sound/soc/mxs/mxs-saif.c +++ b/sound/soc/mxs/mxs-saif.c @@ -753,9 +753,9 @@ static int mxs_saif_probe(struct platform_device *pdev) return ret; } - saif->dma_param.chan_irq = platform_get_irq(pdev, 1); - if (saif->dma_param.chan_irq < 0) { - ret = saif->dma_param.chan_irq; + saif->dma_param.dma_data.chan_irq = platform_get_irq(pdev, 1); + if (saif->dma_param.dma_data.chan_irq < 0) { + ret = saif->dma_param.dma_data.chan_irq; dev_err(&pdev->dev, "failed to get dma irq resource: %d\n", ret); return ret; diff --git a/sound/soc/omap/am3517evm.c b/sound/soc/omap/am3517evm.c index c1900b2..994dcf3 100644 --- a/sound/soc/omap/am3517evm.c +++ b/sound/soc/omap/am3517evm.c @@ -28,7 +28,6 @@ #include <linux/platform_data/asoc-ti-mcbsp.h> #include "omap-mcbsp.h" -#include "omap-pcm.h" #include "../codecs/tlv320aic23.h" diff --git a/sound/soc/omap/ams-delta.c b/sound/soc/omap/ams-delta.c index 2600447..6294464 100644 --- a/sound/soc/omap/ams-delta.c +++ b/sound/soc/omap/ams-delta.c @@ -36,7 +36,6 @@ #include <linux/platform_data/asoc-ti-mcbsp.h> #include "omap-mcbsp.h" -#include "omap-pcm.h" #include "../codecs/cx20442.h" diff --git a/sound/soc/omap/mcbsp.c b/sound/soc/omap/mcbsp.c index 285c836..eb68c7d 100644 --- a/sound/soc/omap/mcbsp.c +++ b/sound/soc/omap/mcbsp.c @@ -1018,9 +1018,10 @@ int omap_mcbsp_init(struct platform_device *pdev) return -ENODEV; } /* RX DMA request number, and port address configuration */ - mcbsp->dma_data[1].name = "Audio Capture"; - mcbsp->dma_data[1].dma_req = res->start; - mcbsp->dma_data[1].port_addr = omap_mcbsp_dma_reg_params(mcbsp, 1); + mcbsp->dma_req[1] = res->start; + mcbsp->dma_data[1].filter_data = &mcbsp->dma_req[1]; + mcbsp->dma_data[1].addr = omap_mcbsp_dma_reg_params(mcbsp, 1); + mcbsp->dma_data[1].maxburst = 4; res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx"); if (!res) { @@ -1028,9 +1029,10 @@ int omap_mcbsp_init(struct platform_device *pdev) return -ENODEV; } /* TX DMA request number, and port address configuration */ - mcbsp->dma_data[0].name = "Audio Playback"; - mcbsp->dma_data[0].dma_req = res->start; - mcbsp->dma_data[0].port_addr = omap_mcbsp_dma_reg_params(mcbsp, 0); + mcbsp->dma_req[0] = res->start; + mcbsp->dma_data[0].filter_data = &mcbsp->dma_req[0]; + mcbsp->dma_data[0].addr = omap_mcbsp_dma_reg_params(mcbsp, 0); + mcbsp->dma_data[0].maxburst = 4; mcbsp->fclk = clk_get(&pdev->dev, "fck"); if (IS_ERR(mcbsp->fclk)) { diff --git a/sound/soc/omap/mcbsp.h b/sound/soc/omap/mcbsp.h index f93e0b0..96d1b08 100644 --- a/sound/soc/omap/mcbsp.h +++ b/sound/soc/omap/mcbsp.h @@ -24,14 +24,14 @@ #ifndef __ASOC_MCBSP_H #define __ASOC_MCBSP_H -#include "omap-pcm.h" - #ifdef CONFIG_ARCH_OMAP1 #define mcbsp_omap1() 1 #else #define mcbsp_omap1() 0 #endif +#include <sound/dmaengine_pcm.h> + /* McBSP register numbers. Register address offset = num * reg_step */ enum { /* Common registers */ @@ -312,7 +312,8 @@ struct omap_mcbsp { struct omap_mcbsp_platform_data *pdata; struct omap_mcbsp_st_data *st_data; struct omap_mcbsp_reg_cfg cfg_regs; - struct omap_pcm_dma_data dma_data[2]; + struct snd_dmaengine_dai_dma_data dma_data[2]; + unsigned int dma_req[2]; int dma_op_mode; u16 max_tx_thres; u16 max_rx_thres; diff --git a/sound/soc/omap/n810.c b/sound/soc/omap/n810.c index ee7cd53..5e8d640 100644 --- a/sound/soc/omap/n810.c +++ b/sound/soc/omap/n810.c @@ -34,7 +34,6 @@ #include <linux/platform_data/asoc-ti-mcbsp.h> #include "omap-mcbsp.h" -#include "omap-pcm.h" #define N810_HEADSET_AMP_GPIO 10 #define N810_SPEAKER_AMP_GPIO 101 diff --git a/sound/soc/omap/omap-abe-twl6040.c b/sound/soc/omap/omap-abe-twl6040.c index e7d93fa..70cd5c7 100644 --- a/sound/soc/omap/omap-abe-twl6040.c +++ b/sound/soc/omap/omap-abe-twl6040.c @@ -34,7 +34,6 @@ #include "omap-dmic.h" #include "omap-mcpdm.h" -#include "omap-pcm.h" #include "../codecs/twl6040.h" struct abe_twl6040 { diff --git a/sound/soc/omap/omap-dmic.c b/sound/soc/omap/omap-dmic.c index ba49ccd..a2597fa 100644 --- a/sound/soc/omap/omap-dmic.c +++ b/sound/soc/omap/omap-dmic.c @@ -39,8 +39,8 @@ #include <sound/pcm_params.h> #include <sound/initval.h> #include <sound/soc.h> +#include <sound/dmaengine_pcm.h> -#include "omap-pcm.h" #include "omap-dmic.h" struct omap_dmic { @@ -55,13 +55,9 @@ struct omap_dmic { u32 ch_enabled; bool active; struct mutex mutex; -}; -/* - * Stream DMA parameters - */ -static struct omap_pcm_dma_data omap_dmic_dai_dma_params = { - .name = "DMIC capture", + struct snd_dmaengine_dai_dma_data dma_data; + unsigned int dma_req; }; static inline void omap_dmic_write(struct omap_dmic *dmic, u16 reg, u32 val) @@ -118,7 +114,7 @@ static int omap_dmic_dai_startup(struct snd_pcm_substream *substream, mutex_unlock(&dmic->mutex); - snd_soc_dai_set_dma_data(dai, substream, &omap_dmic_dai_dma_params); + snd_soc_dai_set_dma_data(dai, substream, &dmic->dma_data); return ret; } @@ -203,7 +199,7 @@ static int omap_dmic_dai_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct omap_dmic *dmic = snd_soc_dai_get_drvdata(dai); - struct omap_pcm_dma_data *dma_data; + struct snd_dmaengine_dai_dma_data *dma_data; int channels; dmic->clk_div = omap_dmic_select_divider(dmic, params_rate(params)); @@ -230,7 +226,7 @@ static int omap_dmic_dai_hw_params(struct snd_pcm_substream *substream, /* packet size is threshold * channels */ dma_data = snd_soc_dai_get_dma_data(dai, substream); - dma_data->packet_size = dmic->threshold * channels; + dma_data->maxburst = dmic->threshold * channels; return 0; } @@ -476,7 +472,7 @@ static int asoc_dmic_probe(struct platform_device *pdev) ret = -ENODEV; goto err_put_clk; } - omap_dmic_dai_dma_params.port_addr = res->start + OMAP_DMIC_DATA_REG; + dmic->dma_data.addr = res->start + OMAP_DMIC_DATA_REG; res = platform_get_resource(pdev, IORESOURCE_DMA, 0); if (!res) { @@ -484,7 +480,9 @@ static int asoc_dmic_probe(struct platform_device *pdev) ret = -ENODEV; goto err_put_clk; } - omap_dmic_dai_dma_params.dma_req = res->start; + + dmic->dma_req = res->start; + dmic->dma_data.filter_data = &dmic->dma_req; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mpu"); if (!res) { @@ -493,19 +491,9 @@ static int asoc_dmic_probe(struct platform_device *pdev) goto err_put_clk; } - if (!devm_request_mem_region(&pdev->dev, res->start, - resource_size(res), pdev->name)) { - dev_err(dmic->dev, "memory region already claimed\n"); - ret = -ENODEV; - goto err_put_clk; - } - - dmic->io_base = devm_ioremap(&pdev->dev, res->start, - resource_size(res)); - if (!dmic->io_base) { - ret = -ENOMEM; - goto err_put_clk; - } + dmic->io_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(dmic->io_base)) + return PTR_ERR(dmic->io_base); ret = snd_soc_register_dai(&pdev->dev, &omap_dmic_dai); if (ret) diff --git a/sound/soc/omap/omap-hdmi.c b/sound/soc/omap/omap-hdmi.c index 32fa840..b4bfab9 100644 --- a/sound/soc/omap/omap-hdmi.c +++ b/sound/soc/omap/omap-hdmi.c @@ -32,15 +32,16 @@ #include <sound/soc.h> #include <sound/asound.h> #include <sound/asoundef.h> +#include <sound/dmaengine_pcm.h> #include <video/omapdss.h> -#include "omap-pcm.h" #include "omap-hdmi.h" #define DRV_NAME "omap-hdmi-audio-dai" struct hdmi_priv { - struct omap_pcm_dma_data dma_params; + struct snd_dmaengine_dai_dma_data dma_data; + unsigned int dma_req; struct omap_dss_audio dss_audio; struct snd_aes_iec958 iec; struct snd_cea_861_aud_if cea; @@ -68,7 +69,7 @@ static int omap_hdmi_dai_startup(struct snd_pcm_substream *substream, return -ENODEV; } - snd_soc_dai_set_dma_data(dai, substream, &priv->dma_params); + snd_soc_dai_set_dma_data(dai, substream, &priv->dma_data); return 0; } @@ -88,25 +89,20 @@ static int omap_hdmi_dai_hw_params(struct snd_pcm_substream *substream, struct hdmi_priv *priv = snd_soc_dai_get_drvdata(dai); struct snd_aes_iec958 *iec = &priv->iec; struct snd_cea_861_aud_if *cea = &priv->cea; - struct omap_pcm_dma_data *dma_data; int err = 0; - dma_data = snd_soc_dai_get_dma_data(dai, substream); - switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: - dma_data->packet_size = 16; + priv->dma_data.maxburst = 16; break; case SNDRV_PCM_FORMAT_S24_LE: - dma_data->packet_size = 32; + priv->dma_data.maxburst = 32; break; default: dev_err(dai->dev, "format not supported!\n"); return -EINVAL; } - dma_data->data_type = 32; - /* * fill the IEC-60958 channel status word */ @@ -283,8 +279,7 @@ static int omap_hdmi_probe(struct platform_device *pdev) return -ENODEV; } - hdmi_data->dma_params.port_addr = hdmi_rsrc->start - + OMAP_HDMI_AUDIO_DMA_PORT; + hdmi_data->dma_data.addr = hdmi_rsrc->start + OMAP_HDMI_AUDIO_DMA_PORT; hdmi_rsrc = platform_get_resource(pdev, IORESOURCE_DMA, 0); if (!hdmi_rsrc) { @@ -292,8 +287,9 @@ static int omap_hdmi_probe(struct platform_device *pdev) return -ENODEV; } - hdmi_data->dma_params.dma_req = hdmi_rsrc->start; - hdmi_data->dma_params.name = "HDMI playback"; + hdmi_data->dma_req = hdmi_rsrc->start; + hdmi_data->dma_data.filter_data = &hdmi_data->dma_req; + hdmi_data->dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; /* * TODO: We assume that there is only one DSS HDMI device. Future diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c index 8d2defd..1e7b3e8 100644 --- a/sound/soc/omap/omap-mcbsp.c +++ b/sound/soc/omap/omap-mcbsp.c @@ -33,11 +33,11 @@ #include <sound/pcm_params.h> #include <sound/initval.h> #include <sound/soc.h> +#include <sound/dmaengine_pcm.h> #include <linux/platform_data/asoc-ti-mcbsp.h> #include "mcbsp.h" #include "omap-mcbsp.h" -#include "omap-pcm.h" #define OMAP_MCBSP_RATES (SNDRV_PCM_RATE_8000_96000) @@ -62,24 +62,22 @@ enum { * Stream DMA parameters. DMA request line and port address are set runtime * since they are different between OMAP1 and later OMAPs */ -static void omap_mcbsp_set_threshold(struct snd_pcm_substream *substream) +static void omap_mcbsp_set_threshold(struct snd_pcm_substream *substream, + unsigned int packet_size) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); - struct omap_pcm_dma_data *dma_data; int words; - dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - /* * Configure McBSP threshold based on either: * packet_size, when the sDMA is in packet mode, or based on the * period size in THRESHOLD mode, otherwise use McBSP threshold = 1 * for mono streams. */ - if (dma_data->packet_size) - words = dma_data->packet_size; + if (packet_size) + words = packet_size; else words = 1; @@ -226,7 +224,7 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream, { struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); struct omap_mcbsp_reg_cfg *regs = &mcbsp->cfg_regs; - struct omap_pcm_dma_data *dma_data; + struct snd_dmaengine_dai_dma_data *dma_data; int wlen, channels, wpf; int pkt_size = 0; unsigned int format, div, framesize, master; @@ -245,7 +243,6 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } if (mcbsp->pdata->buffer_size) { - dma_data->set_threshold = omap_mcbsp_set_threshold; if (mcbsp->dma_op_mode == MCBSP_DMA_MODE_THRESHOLD) { int period_words, max_thrsh; int divider = 0; @@ -276,9 +273,10 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream, /* Use packet mode for non mono streams */ pkt_size = channels; } + omap_mcbsp_set_threshold(substream, pkt_size); } - dma_data->packet_size = pkt_size; + dma_data->maxburst = pkt_size; if (mcbsp->configured) { /* McBSP already configured by another stream */ diff --git a/sound/soc/omap/omap-mcpdm.c b/sound/soc/omap/omap-mcpdm.c index 5ca11bd..49f102a 100644 --- a/sound/soc/omap/omap-mcpdm.c +++ b/sound/soc/omap/omap-mcpdm.c @@ -39,11 +39,14 @@ #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> +#include <sound/dmaengine_pcm.h> #include "omap-mcpdm.h" -#include "omap-pcm.h" -#define OMAP44XX_MCPDM_L3_BASE 0x49032000 +struct mcpdm_link_config { + u32 link_mask; /* channel mask for the direction */ + u32 threshold; /* FIFO threshold */ +}; struct omap_mcpdm { struct device *dev; @@ -53,29 +56,22 @@ struct omap_mcpdm { struct mutex mutex; - /* channel data */ - u32 dn_channels; - u32 up_channels; - - /* McPDM FIFO thresholds */ - u32 dn_threshold; - u32 up_threshold; + /* Playback/Capture configuration */ + struct mcpdm_link_config config[2]; /* McPDM dn offsets for rx1, and 2 channels */ u32 dn_rx_offset; + + /* McPDM needs to be restarted due to runtime reconfiguration */ + bool restart; + + struct snd_dmaengine_dai_dma_data dma_data[2]; + unsigned int dma_req[2]; }; /* * Stream DMA parameters */ -static struct omap_pcm_dma_data omap_mcpdm_dai_dma_params[] = { - { - .name = "Audio playback", - }, - { - .name = "Audio capture", - }, -}; static inline void omap_mcpdm_write(struct omap_mcpdm *mcpdm, u16 reg, u32 val) { @@ -130,11 +126,12 @@ static void omap_mcpdm_reg_dump(struct omap_mcpdm *mcpdm) {} static void omap_mcpdm_start(struct omap_mcpdm *mcpdm) { u32 ctrl = omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL); + u32 link_mask = mcpdm->config[0].link_mask | mcpdm->config[1].link_mask; ctrl |= (MCPDM_SW_DN_RST | MCPDM_SW_UP_RST); omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl); - ctrl |= mcpdm->dn_channels | mcpdm->up_channels; + ctrl |= link_mask; omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl); ctrl &= ~(MCPDM_SW_DN_RST | MCPDM_SW_UP_RST); @@ -148,11 +145,12 @@ static void omap_mcpdm_start(struct omap_mcpdm *mcpdm) static void omap_mcpdm_stop(struct omap_mcpdm *mcpdm) { u32 ctrl = omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL); + u32 link_mask = MCPDM_PDM_DN_MASK | MCPDM_PDM_UP_MASK; ctrl |= (MCPDM_SW_DN_RST | MCPDM_SW_UP_RST); omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl); - ctrl &= ~(mcpdm->dn_channels | mcpdm->up_channels); + ctrl &= ~(link_mask); omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl); ctrl &= ~(MCPDM_SW_DN_RST | MCPDM_SW_UP_RST); @@ -188,8 +186,10 @@ static void omap_mcpdm_open_streams(struct omap_mcpdm *mcpdm) omap_mcpdm_write(mcpdm, MCPDM_REG_DN_OFFSET, dn_offset); } - omap_mcpdm_write(mcpdm, MCPDM_REG_FIFO_CTRL_DN, mcpdm->dn_threshold); - omap_mcpdm_write(mcpdm, MCPDM_REG_FIFO_CTRL_UP, mcpdm->up_threshold); + omap_mcpdm_write(mcpdm, MCPDM_REG_FIFO_CTRL_DN, + mcpdm->config[SNDRV_PCM_STREAM_PLAYBACK].threshold); + omap_mcpdm_write(mcpdm, MCPDM_REG_FIFO_CTRL_UP, + mcpdm->config[SNDRV_PCM_STREAM_CAPTURE].threshold); omap_mcpdm_write(mcpdm, MCPDM_REG_DMAENABLE_SET, MCPDM_DMA_DN_ENABLE | MCPDM_DMA_UP_ENABLE); @@ -267,7 +267,7 @@ static int omap_mcpdm_dai_startup(struct snd_pcm_substream *substream, mutex_unlock(&mcpdm->mutex); snd_soc_dai_set_dma_data(dai, substream, - &omap_mcpdm_dai_dma_params[substream->stream]); + &mcpdm->dma_data[substream->stream]); return 0; } @@ -283,6 +283,8 @@ static void omap_mcpdm_dai_shutdown(struct snd_pcm_substream *substream, if (omap_mcpdm_active(mcpdm)) { omap_mcpdm_stop(mcpdm); omap_mcpdm_close_streams(mcpdm); + mcpdm->config[0].link_mask = 0; + mcpdm->config[1].link_mask = 0; } } @@ -295,7 +297,8 @@ static int omap_mcpdm_dai_hw_params(struct snd_pcm_substream *substream, { struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai); int stream = substream->stream; - struct omap_pcm_dma_data *dma_data; + struct snd_dmaengine_dai_dma_data *dma_data; + u32 threshold; int channels; int link_mask = 0; @@ -325,16 +328,32 @@ static int omap_mcpdm_dai_hw_params(struct snd_pcm_substream *substream, dma_data = snd_soc_dai_get_dma_data(dai, substream); + threshold = mcpdm->config[stream].threshold; /* Configure McPDM channels, and DMA packet size */ if (stream == SNDRV_PCM_STREAM_PLAYBACK) { - mcpdm->dn_channels = link_mask << 3; - dma_data->packet_size = - (MCPDM_DN_THRES_MAX - mcpdm->dn_threshold) * channels; + link_mask <<= 3; + + /* If capture is not running assume a stereo stream to come */ + if (!mcpdm->config[!stream].link_mask) + mcpdm->config[!stream].link_mask = 0x3; + + dma_data->maxburst = + (MCPDM_DN_THRES_MAX - threshold) * channels; } else { - mcpdm->up_channels = link_mask << 0; - dma_data->packet_size = mcpdm->up_threshold * channels; + /* If playback is not running assume a stereo stream to come */ + if (!mcpdm->config[!stream].link_mask) + mcpdm->config[!stream].link_mask = (0x3 << 3); + + dma_data->maxburst = threshold * channels; } + /* Check if we need to restart McPDM with this stream */ + if (mcpdm->config[stream].link_mask && + mcpdm->config[stream].link_mask != link_mask) + mcpdm->restart = true; + + mcpdm->config[stream].link_mask = link_mask; + return 0; } @@ -346,6 +365,11 @@ static int omap_mcpdm_prepare(struct snd_pcm_substream *substream, if (!omap_mcpdm_active(mcpdm)) { omap_mcpdm_start(mcpdm); omap_mcpdm_reg_dump(mcpdm); + } else if (mcpdm->restart) { + omap_mcpdm_stop(mcpdm); + omap_mcpdm_start(mcpdm); + mcpdm->restart = false; + omap_mcpdm_reg_dump(mcpdm); } return 0; @@ -369,7 +393,7 @@ static int omap_mcpdm_probe(struct snd_soc_dai *dai) pm_runtime_get_sync(mcpdm->dev); omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, 0x00); - ret = request_irq(mcpdm->irq, omap_mcpdm_irq_handler, + ret = devm_request_irq(mcpdm->dev, mcpdm->irq, omap_mcpdm_irq_handler, 0, "McPDM", (void *)mcpdm); pm_runtime_put_sync(mcpdm->dev); @@ -380,8 +404,9 @@ static int omap_mcpdm_probe(struct snd_soc_dai *dai) } /* Configure McPDM threshold values */ - mcpdm->dn_threshold = 2; - mcpdm->up_threshold = MCPDM_UP_THRES_MAX - 3; + mcpdm->config[SNDRV_PCM_STREAM_PLAYBACK].threshold = 2; + mcpdm->config[SNDRV_PCM_STREAM_CAPTURE].threshold = + MCPDM_UP_THRES_MAX - 3; return ret; } @@ -389,7 +414,6 @@ static int omap_mcpdm_remove(struct snd_soc_dai *dai) { struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai); - free_irq(mcpdm->irq, (void *)mcpdm); pm_runtime_disable(mcpdm->dev); return 0; @@ -446,33 +470,30 @@ static int asoc_mcpdm_probe(struct platform_device *pdev) if (res == NULL) return -ENOMEM; - omap_mcpdm_dai_dma_params[0].port_addr = res->start + MCPDM_REG_DN_DATA; - omap_mcpdm_dai_dma_params[1].port_addr = res->start + MCPDM_REG_UP_DATA; + mcpdm->dma_data[0].addr = res->start + MCPDM_REG_DN_DATA; + mcpdm->dma_data[1].addr = res->start + MCPDM_REG_UP_DATA; res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "dn_link"); if (!res) return -ENODEV; - omap_mcpdm_dai_dma_params[0].dma_req = res->start; + mcpdm->dma_req[0] = res->start; + mcpdm->dma_data[0].filter_data = &mcpdm->dma_req[0]; res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "up_link"); if (!res) return -ENODEV; - omap_mcpdm_dai_dma_params[1].dma_req = res->start; + mcpdm->dma_req[1] = res->start; + mcpdm->dma_data[1].filter_data = &mcpdm->dma_req[1]; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mpu"); if (res == NULL) return -ENOMEM; - if (!devm_request_mem_region(&pdev->dev, res->start, - resource_size(res), "McPDM")) - return -EBUSY; - - mcpdm->io_base = devm_ioremap(&pdev->dev, res->start, - resource_size(res)); - if (!mcpdm->io_base) - return -ENOMEM; + mcpdm->io_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(mcpdm->io_base)) + return PTR_ERR(mcpdm->io_base); mcpdm->irq = platform_get_irq(pdev, 0); if (mcpdm->irq < 0) diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c index c722c2e..c28e042 100644 --- a/sound/soc/omap/omap-pcm.c +++ b/sound/soc/omap/omap-pcm.c @@ -32,8 +32,6 @@ #include <sound/dmaengine_pcm.h> #include <sound/soc.h> -#include "omap-pcm.h" - #ifdef CONFIG_ARCH_OMAP1 #define pcm_omap1510() cpu_is_omap1510() #else @@ -56,25 +54,6 @@ static const struct snd_pcm_hardware omap_pcm_hardware = { .buffer_bytes_max = 128 * 1024, }; -static int omap_pcm_get_dma_buswidth(int num_bits) -{ - int buswidth; - - switch (num_bits) { - case 16: - buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES; - break; - case 32: - buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES; - break; - default: - buswidth = -EINVAL; - break; - } - return buswidth; -} - - /* this may get called several times by oss emulation */ static int omap_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) @@ -105,20 +84,9 @@ static int omap_pcm_hw_params(struct snd_pcm_substream *substream, if (err) return err; - /* Override the *_dma addr_width if requested by the DAI driver */ - if (dma_data->data_type) { - int buswidth = omap_pcm_get_dma_buswidth(dma_data->data_type); - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - config.dst_addr_width = buswidth; - else - config.src_addr_width = buswidth; - } - - config.src_addr = dma_data->port_addr; - config.dst_addr = dma_data->port_addr; - config.src_maxburst = dma_data->packet_size; - config.dst_maxburst = dma_data->packet_size; + snd_dmaengine_pcm_set_config_from_dai_data(substream, + snd_soc_dai_get_dma_data(rtd->cpu_dai, substream), + &config); return dmaengine_slave_config(chan, &config); } @@ -129,37 +97,6 @@ static int omap_pcm_hw_free(struct snd_pcm_substream *substream) return 0; } -static int omap_pcm_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct omap_pcm_dma_data *dma_data; - int ret = 0; - - dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - /* Configure McBSP internal buffer usage */ - if (dma_data->set_threshold) - dma_data->set_threshold(substream); - break; - - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - break; - default: - ret = -EINVAL; - } - - if (ret == 0) - ret = snd_dmaengine_pcm_trigger(substream, cmd); - - return ret; -} - static snd_pcm_uframes_t omap_pcm_pointer(struct snd_pcm_substream *substream) { snd_pcm_uframes_t offset; @@ -175,20 +112,15 @@ static snd_pcm_uframes_t omap_pcm_pointer(struct snd_pcm_substream *substream) static int omap_pcm_open(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct omap_pcm_dma_data *dma_data; + struct snd_dmaengine_dai_dma_data *dma_data; snd_soc_set_runtime_hwparams(substream, &omap_pcm_hardware); dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - return snd_dmaengine_pcm_open(substream, omap_dma_filter_fn, - &dma_data->dma_req); -} - -static int omap_pcm_close(struct snd_pcm_substream *substream) -{ - snd_dmaengine_pcm_close(substream); - return 0; + 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, @@ -204,11 +136,11 @@ static int omap_pcm_mmap(struct snd_pcm_substream *substream, static struct snd_pcm_ops omap_pcm_ops = { .open = omap_pcm_open, - .close = omap_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, - .trigger = omap_pcm_trigger, + .trigger = snd_dmaengine_pcm_trigger, .pointer = omap_pcm_pointer, .mmap = omap_pcm_mmap, }; diff --git a/sound/soc/omap/omap-pcm.h b/sound/soc/omap/omap-pcm.h deleted file mode 100644 index cabe74c..0000000 --- a/sound/soc/omap/omap-pcm.h +++ /dev/null @@ -1,40 +0,0 @@ -/* - * omap-pcm.h - * - * Copyright (C) 2008 Nokia Corporation - * - * Contact: Jarkko Nikula <jarkko.nikula@bitmer.com> - * Peter Ujfalusi <peter.ujfalusi@ti.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#ifndef __OMAP_PCM_H__ -#define __OMAP_PCM_H__ - -struct snd_pcm_substream; - -struct omap_pcm_dma_data { - char *name; /* stream identifier */ - int dma_req; /* DMA request line */ - unsigned long port_addr; /* transmit/receive register */ - void (*set_threshold)(struct snd_pcm_substream *substream); - int data_type; /* 8, 16, 32 (bits) or 0 to let omap-pcm - * to decide the sDMA data type */ - int packet_size; /* packet size only in PACKET mode */ -}; - -#endif diff --git a/sound/soc/omap/omap-twl4030.c b/sound/soc/omap/omap-twl4030.c index fd98509..2a9324f 100644 --- a/sound/soc/omap/omap-twl4030.c +++ b/sound/soc/omap/omap-twl4030.c @@ -43,7 +43,6 @@ #include <sound/jack.h> #include "omap-mcbsp.h" -#include "omap-pcm.h" struct omap_twl4030 { int jack_detect; /* board can detect jack events */ diff --git a/sound/soc/omap/omap3pandora.c b/sound/soc/omap/omap3pandora.c index 805512f..cf604a2 100644 --- a/sound/soc/omap/omap3pandora.c +++ b/sound/soc/omap/omap3pandora.c @@ -34,7 +34,6 @@ #include <linux/platform_data/asoc-ti-mcbsp.h> #include "omap-mcbsp.h" -#include "omap-pcm.h" #define OMAP3_PANDORA_DAC_POWER_GPIO 118 #define OMAP3_PANDORA_AMP_POWER_GPIO 14 @@ -80,12 +79,18 @@ static int omap3pandora_hw_params(struct snd_pcm_substream *substream, static int omap3pandora_dac_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { + int ret; + /* * The PCM1773 DAC datasheet requires 1ms delay between switching * VCC power on/off and /PD pin high/low */ if (SND_SOC_DAPM_EVENT_ON(event)) { - regulator_enable(omap3pandora_dac_reg); + ret = regulator_enable(omap3pandora_dac_reg); + if (ret) { + dev_err(w->dapm->dev, "Failed to power DAC: %d\n", ret); + return ret; + } mdelay(1); gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 1); } else { diff --git a/sound/soc/omap/osk5912.c b/sound/soc/omap/osk5912.c index 06ef8d6..d03e57d 100644 --- a/sound/soc/omap/osk5912.c +++ b/sound/soc/omap/osk5912.c @@ -33,7 +33,6 @@ #include <linux/platform_data/asoc-ti-mcbsp.h> #include "omap-mcbsp.h" -#include "omap-pcm.h" #include "../codecs/tlv320aic23.h" #define CODEC_CLOCK 12000000 diff --git a/sound/soc/omap/rx51.c b/sound/soc/omap/rx51.c index 3cd5257..249cd23 100644 --- a/sound/soc/omap/rx51.c +++ b/sound/soc/omap/rx51.c @@ -37,7 +37,6 @@ #include <asm/mach-types.h> #include "omap-mcbsp.h" -#include "omap-pcm.h" #define RX51_TVOUT_SEL_GPIO 40 #define RX51_JACK_DETECT_GPIO 177 diff --git a/sound/soc/pxa/mmp-pcm.c b/sound/soc/pxa/mmp-pcm.c index 190eb0b..3499300 100644 --- a/sound/soc/pxa/mmp-pcm.c +++ b/sound/soc/pxa/mmp-pcm.c @@ -118,9 +118,8 @@ static int mmp_pcm_open(struct snd_pcm_substream *substream) struct snd_soc_pcm_runtime *rtd = substream->private_data; struct platform_device *pdev = to_platform_device(rtd->platform->dev); struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct mmp_dma_data *dma_data; + struct mmp_dma_data dma_data; struct resource *r; - int ret; r = platform_get_resource(pdev, IORESOURCE_DMA, substream->stream); if (!r) @@ -128,33 +127,12 @@ static int mmp_pcm_open(struct snd_pcm_substream *substream) snd_soc_set_runtime_hwparams(substream, &mmp_pcm_hardware[substream->stream]); - dma_data = devm_kzalloc(&pdev->dev, - sizeof(struct mmp_dma_data), GFP_KERNEL); - if (dma_data == NULL) - return -ENOMEM; - dma_data->dma_res = r; - dma_data->ssp_id = cpu_dai->id; + dma_data.dma_res = r; + dma_data.ssp_id = cpu_dai->id; - ret = snd_dmaengine_pcm_open(substream, filter, dma_data); - if (ret) { - devm_kfree(&pdev->dev, dma_data); - return ret; - } - - snd_dmaengine_pcm_set_data(substream, dma_data); - return 0; -} - -static int mmp_pcm_close(struct snd_pcm_substream *substream) -{ - struct mmp_dma_data *dma_data = snd_dmaengine_pcm_get_data(substream); - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct platform_device *pdev = to_platform_device(rtd->platform->dev); - - snd_dmaengine_pcm_close(substream); - devm_kfree(&pdev->dev, dma_data); - return 0; + return snd_dmaengine_pcm_open_request_chan(substream, filter, + &dma_data); } static int mmp_pcm_mmap(struct snd_pcm_substream *substream, @@ -171,7 +149,7 @@ static int mmp_pcm_mmap(struct snd_pcm_substream *substream, struct snd_pcm_ops mmp_pcm_ops = { .open = mmp_pcm_open, - .close = mmp_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 c70f9e0..78468c6 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3903,21 +3903,14 @@ void snd_soc_unregister_dais(struct device *dev, size_t count) EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); /** - * 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) { @@ -3940,30 +3933,76 @@ 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 111b7d92..aa924d9 100644 --- a/sound/soc/soc-dmaengine-pcm.c +++ b/sound/soc/soc-dmaengine-pcm.c @@ -33,8 +33,6 @@ struct dmaengine_pcm_runtime_data { dma_cookie_t cookie; unsigned int pos; - - void *data; }; static inline struct dmaengine_pcm_runtime_data *substream_to_prtd( @@ -43,33 +41,6 @@ static inline struct dmaengine_pcm_runtime_data *substream_to_prtd( return substream->runtime->private_data; } -/** - * snd_dmaengine_pcm_set_data - Set dmaengine substream private data - * @substream: PCM substream - * @data: Data to set - */ -void snd_dmaengine_pcm_set_data(struct snd_pcm_substream *substream, void *data) -{ - struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); - - prtd->data = data; -} -EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_set_data); - -/** - * snd_dmaengine_pcm_get_data - Get dmaeinge substream private data - * @substream: PCM substream - * - * Returns the data previously set with snd_dmaengine_pcm_set_data - */ -void *snd_dmaengine_pcm_get_data(struct snd_pcm_substream *substream) -{ - struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); - - return prtd->data; -} -EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_get_data); - struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream) { struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); @@ -118,10 +89,49 @@ int snd_hwparams_to_dma_slave_config(const struct snd_pcm_substream *substream, slave_config->src_addr_width = buswidth; } + slave_config->device_fc = false; + return 0; } EXPORT_SYMBOL_GPL(snd_hwparams_to_dma_slave_config); +/** + * snd_dmaengine_pcm_set_config_from_dai_data() - Initializes a dma slave config + * using DAI DMA data. + * @substream: PCM substream + * @dma_data: DAI DMA data + * @slave_config: DMA slave configuration + * + * Initializes the {dst,src}_addr, {dst,src}_maxburst, {dst,src}_addr_width and + * slave_id fields of the DMA slave config from the same fields of the DAI DMA + * data struct. The src and dst fields will be initialized depending on the + * direction of the substream. If the substream is a playback stream the dst + * fields will be initialized, if it is a capture stream the src fields will be + * initialized. The {dst,src}_addr_width field will only be initialized if the + * addr_width field of the DAI DMA data struct is not equal to + * DMA_SLAVE_BUSWIDTH_UNDEFINED. + */ +void snd_dmaengine_pcm_set_config_from_dai_data( + const struct snd_pcm_substream *substream, + const struct snd_dmaengine_dai_dma_data *dma_data, + struct dma_slave_config *slave_config) +{ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + slave_config->dst_addr = dma_data->addr; + slave_config->dst_maxburst = dma_data->maxburst; + if (dma_data->addr_width != DMA_SLAVE_BUSWIDTH_UNDEFINED) + slave_config->dst_addr_width = dma_data->addr_width; + } else { + slave_config->src_addr = dma_data->addr; + slave_config->src_maxburst = dma_data->maxburst; + if (dma_data->addr_width != DMA_SLAVE_BUSWIDTH_UNDEFINED) + slave_config->src_addr_width = dma_data->addr_width; + } + + slave_config->slave_id = dma_data->slave_id; +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_set_config_from_dai_data); + static void dmaengine_pcm_dma_complete(void *arg) { struct snd_pcm_substream *substream = arg; @@ -244,44 +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; dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); dma_cap_set(DMA_CYCLIC, mask); - prtd->dma_chan = dma_request_channel(mask, filter_fn, filter_data); - if (!prtd->dma_chan) - return -ENXIO; - - return 0; + return dma_request_channel(mask, filter_fn, filter_data); } +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_request_channel); /** * snd_dmaengine_pcm_open - Open a dmaengine based PCM substream * @substream: PCM substream - * @filter_fn: Filter function used to request the DMA channel - * @filter_data: Data passed to the DMA filter function + * @chan: DMA channel to use for data transfers * * Returns 0 on success, a negative error code otherwise. * - * This function will request a DMA channel using the passed filter function and - * data. The function should usually be called from the pcm open callback. - * - * Note that this function will use private_data field of the substream's - * runtime. So it is not availabe to your pcm driver implementation. If you need - * to keep additional data attached to a substream use - * snd_dmaengine_pcm_{set,get}_data. + * The function should usually be called from the pcm open callback. Note that + * this function will use private_data field of the substream's runtime. So it + * is not availabe to your pcm driver implementation. */ int snd_dmaengine_pcm_open(struct snd_pcm_substream *substream, - dma_filter_fn filter_fn, void *filter_data) + struct dma_chan *chan) { struct dmaengine_pcm_runtime_data *prtd; int ret; + if (!chan) + return -ENXIO; + ret = snd_pcm_hw_constraint_integer(substream->runtime, SNDRV_PCM_HW_PARAM_PERIODS); if (ret < 0) @@ -291,11 +305,7 @@ int snd_dmaengine_pcm_open(struct snd_pcm_substream *substream, if (!prtd) return -ENOMEM; - ret = dmaengine_pcm_request_channel(prtd, filter_fn, filter_data); - if (ret < 0) { - kfree(prtd); - return ret; - } + prtd->dma_chan = chan; substream->runtime->private_data = prtd; @@ -304,6 +314,27 @@ int snd_dmaengine_pcm_open(struct snd_pcm_substream *substream, EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_open); /** + * snd_dmaengine_pcm_open_request_chan - Open a dmaengine based PCM substream and request channel + * @substream: PCM substream + * @filter_fn: Filter function used to request the DMA channel + * @filter_data: Data passed to the DMA filter function + * + * Returns 0 on success, a negative error code otherwise. + * + * This function will request a DMA channel using the passed filter function and + * data. The function should usually be called from the pcm open callback. Note + * that this function will use private_data field of the substream's runtime. So + * it is not availabe to your pcm driver implementation. + */ +int snd_dmaengine_pcm_open_request_chan(struct snd_pcm_substream *substream, + dma_filter_fn filter_fn, void *filter_data) +{ + return snd_dmaengine_pcm_open(substream, + snd_dmaengine_pcm_request_channel(filter_fn, filter_data)); +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_open_request_chan); + +/** * snd_dmaengine_pcm_close - Close a dmaengine based PCM substream * @substream: PCM substream */ @@ -311,11 +342,26 @@ int snd_dmaengine_pcm_close(struct snd_pcm_substream *substream) { struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); - dma_release_channel(prtd->dma_chan); kfree(prtd); return 0; } EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_close); +/** + * snd_dmaengine_pcm_release_chan_close - Close a dmaengine based PCM substream and release channel + * @substream: PCM substream + * + * Releases the DMA channel associated with the PCM substream. + */ +int snd_dmaengine_pcm_close_release_chan(struct snd_pcm_substream *substream) +{ + struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); + + dma_release_channel(prtd->dma_chan); + + return snd_dmaengine_pcm_close(substream); +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_close_release_chan); + MODULE_LICENSE("GPL"); diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c new file mode 100644 index 0000000..ae0c37e --- /dev/null +++ b/sound/soc/soc-generic-dmaengine-pcm.c @@ -0,0 +1,284 @@ +/* + * Copyright (C) 2013, Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/dmaengine.h> +#include <linux/slab.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <linux/dma-mapping.h> +#include <linux/of.h> +#include <linux/of_dma.h> + +#include <sound/dmaengine_pcm.h> + +struct dmaengine_pcm { + struct dma_chan *chan[SNDRV_PCM_STREAM_CAPTURE + 1]; + const struct snd_dmaengine_pcm_config *config; + struct snd_soc_platform platform; + bool compat; +}; + +static struct dmaengine_pcm *soc_platform_to_pcm(struct snd_soc_platform *p) +{ + return container_of(p, struct dmaengine_pcm, platform); +} + +/** + * snd_dmaengine_pcm_prepare_slave_config() - Generic prepare_slave_config callback + * @substream: PCM substream + * @params: hw_params + * @slave_config: DMA slave config to prepare + * + * This function can be used as a generic prepare_slave_config callback for + * platforms which make use of the snd_dmaengine_dai_dma_data struct for their + * DAI DMA data. Internally the function will first call + * snd_hwparams_to_dma_slave_config to fill in the slave config based on the + * hw_params, followed by snd_dmaengine_set_config_from_dai_data to fill in the + * remaining fields based on the DAI DMA data. + */ +int snd_dmaengine_pcm_prepare_slave_config(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, struct dma_slave_config *slave_config) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_dmaengine_dai_dma_data *dma_data; + int ret; + + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + + ret = snd_hwparams_to_dma_slave_config(substream, params, slave_config); + if (ret) + return ret; + + snd_dmaengine_pcm_set_config_from_dai_data(substream, dma_data, + slave_config); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_prepare_slave_config); + +static int dmaengine_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform); + struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream); + struct dma_slave_config slave_config; + int ret; + + if (pcm->config->prepare_slave_config) { + ret = pcm->config->prepare_slave_config(substream, params, + &slave_config); + if (ret) + return ret; + + ret = dmaengine_slave_config(chan, &slave_config); + if (ret) + return ret; + } + + return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); +} + +static int dmaengine_pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform); + struct dma_chan *chan = pcm->chan[substream->stream]; + int ret; + + ret = snd_soc_set_runtime_hwparams(substream, + pcm->config->pcm_hardware); + if (ret) + return ret; + + return snd_dmaengine_pcm_open(substream, chan); +} + +static struct device *dmaengine_dma_dev(struct dmaengine_pcm *pcm, + struct snd_pcm_substream *substream) +{ + if (!pcm->chan[substream->stream]) + return NULL; + + return pcm->chan[substream->stream]->device->dev; +} + +static void dmaengine_pcm_free(struct snd_pcm *pcm) +{ + snd_pcm_lib_preallocate_free_for_all(pcm); +} + +static struct dma_chan *dmaengine_pcm_compat_request_channel( + struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_substream *substream) +{ + struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform); + + if (pcm->config->compat_request_channel) + return pcm->config->compat_request_channel(rtd, substream); + + return snd_dmaengine_pcm_request_channel(pcm->config->compat_filter_fn, + snd_soc_dai_get_dma_data(rtd->cpu_dai, substream)); +} + +static int dmaengine_pcm_new(struct snd_soc_pcm_runtime *rtd) +{ + struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform); + const struct snd_dmaengine_pcm_config *config = pcm->config; + struct snd_pcm_substream *substream; + unsigned int i; + int ret; + + for (i = SNDRV_PCM_STREAM_PLAYBACK; i <= SNDRV_PCM_STREAM_CAPTURE; i++) { + substream = rtd->pcm->streams[i].substream; + if (!substream) + continue; + + if (!pcm->chan[i] && pcm->compat) { + pcm->chan[i] = dmaengine_pcm_compat_request_channel(rtd, + substream); + } + + if (!pcm->chan[i]) { + dev_err(rtd->platform->dev, + "Missing dma channel for stream: %d\n", i); + ret = -EINVAL; + goto err_free; + } + + ret = snd_pcm_lib_preallocate_pages(substream, + SNDRV_DMA_TYPE_DEV, + dmaengine_dma_dev(pcm, substream), + config->prealloc_buffer_size, + config->pcm_hardware->buffer_bytes_max); + if (ret) + goto err_free; + } + + return 0; + +err_free: + dmaengine_pcm_free(rtd->pcm); + return ret; +} + +static const struct snd_pcm_ops dmaengine_pcm_ops = { + .open = dmaengine_pcm_open, + .close = snd_dmaengine_pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = dmaengine_pcm_hw_params, + .hw_free = snd_pcm_lib_free_pages, + .trigger = snd_dmaengine_pcm_trigger, + .pointer = snd_dmaengine_pcm_pointer, +}; + +static const struct snd_soc_platform_driver dmaengine_pcm_platform = { + .ops = &dmaengine_pcm_ops, + .pcm_new = dmaengine_pcm_new, + .pcm_free = dmaengine_pcm_free, + .probe_order = SND_SOC_COMP_ORDER_LATE, +}; + +static const struct snd_pcm_ops dmaengine_no_residue_pcm_ops = { + .open = dmaengine_pcm_open, + .close = snd_dmaengine_pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = dmaengine_pcm_hw_params, + .hw_free = snd_pcm_lib_free_pages, + .trigger = snd_dmaengine_pcm_trigger, + .pointer = snd_dmaengine_pcm_pointer_no_residue, +}; + +static const struct snd_soc_platform_driver dmaengine_no_residue_pcm_platform = { + .ops = &dmaengine_no_residue_pcm_ops, + .pcm_new = dmaengine_pcm_new, + .pcm_free = dmaengine_pcm_free, + .probe_order = SND_SOC_COMP_ORDER_LATE, +}; + +static const char * const dmaengine_pcm_dma_channel_names[] = { + [SNDRV_PCM_STREAM_PLAYBACK] = "tx", + [SNDRV_PCM_STREAM_CAPTURE] = "rx", +}; + +/** + * snd_dmaengine_pcm_register - Register a dmaengine based PCM device + * @dev: The parent device for the PCM device + * @config: Platform specific PCM configuration + * @flags: Platform specific quirks + */ +int snd_dmaengine_pcm_register(struct device *dev, + const struct snd_dmaengine_pcm_config *config, unsigned int flags) +{ + struct dmaengine_pcm *pcm; + unsigned int i; + + pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); + if (!pcm) + return -ENOMEM; + + pcm->config = config; + + if (flags & SND_DMAENGINE_PCM_FLAG_COMPAT) + pcm->compat = true; + + if (!(flags & SND_DMAENGINE_PCM_FLAG_NO_DT) && dev->of_node) { + for (i = SNDRV_PCM_STREAM_PLAYBACK; i <= SNDRV_PCM_STREAM_CAPTURE; i++) { + pcm->chan[i] = of_dma_request_slave_channel(dev->of_node, + dmaengine_pcm_dma_channel_names[i]); + } + } + + if (flags & SND_DMAENGINE_PCM_FLAG_NO_RESIDUE) + return snd_soc_add_platform(dev, &pcm->platform, + &dmaengine_no_residue_pcm_platform); + else + return snd_soc_add_platform(dev, &pcm->platform, + &dmaengine_pcm_platform); +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_register); + +/** + * snd_dmaengine_pcm_unregister - Removes a dmaengine based PCM device + * @dev: Parent device the PCM was register with + * + * Removes a dmaengine based PCM device previously registered with + * snd_dmaengine_pcm_register. + */ +void snd_dmaengine_pcm_unregister(struct device *dev) +{ + struct snd_soc_platform *platform; + struct dmaengine_pcm *pcm; + unsigned int i; + + platform = snd_soc_lookup_platform(dev); + if (!platform) + return; + + pcm = soc_platform_to_pcm(platform); + + for (i = SNDRV_PCM_STREAM_PLAYBACK; i <= SNDRV_PCM_STREAM_CAPTURE; i++) { + if (pcm->chan[i]) + dma_release_channel(pcm->chan[i]); + } + + snd_soc_remove_platform(platform); + kfree(pcm); +} +EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_unregister); + +MODULE_LICENSE("GPL"); diff --git a/sound/soc/spear/spear_pcm.c b/sound/soc/spear/spear_pcm.c index 5e7aebe..d653763 100644 --- a/sound/soc/spear/spear_pcm.c +++ b/sound/soc/spear/spear_pcm.c @@ -64,21 +64,8 @@ static int spear_pcm_open(struct snd_pcm_substream *substream) if (ret) return ret; - ret = snd_dmaengine_pcm_open(substream, dma_data->filter, dma_data); - if (ret) - return ret; - - snd_dmaengine_pcm_set_data(substream, dma_data); - - return 0; -} - -static int spear_pcm_close(struct snd_pcm_substream *substream) -{ - - snd_dmaengine_pcm_close(substream); - - return 0; + return snd_dmaengine_pcm_open_request_chan(substream, dma_data->filter, + dma_data); } static int spear_pcm_mmap(struct snd_pcm_substream *substream, @@ -93,7 +80,7 @@ static int spear_pcm_mmap(struct snd_pcm_substream *substream, static struct snd_pcm_ops spear_pcm_ops = { .open = spear_pcm_open, - .close = spear_pcm_close, + .close = snd_dmaengine_pcm_close_release_chan, .ioctl = snd_pcm_lib_ioctl, .hw_params = spear_pcm_hw_params, .hw_free = spear_pcm_hw_free, diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig index dbc27ce..b1c9d57 100644 --- a/sound/soc/tegra/Kconfig +++ b/sound/soc/tegra/Kconfig @@ -2,7 +2,7 @@ config SND_SOC_TEGRA tristate "SoC Audio for the Tegra System-on-Chip" depends on ARCH_TEGRA && TEGRA20_APB_DMA select REGMAP_MMIO - select SND_SOC_DMAENGINE_PCM if TEGRA20_APB_DMA + select SND_SOC_GENERIC_DMAENGINE_PCM if TEGRA20_APB_DMA help Say Y or M here if you want support for SoC audio on Tegra. diff --git a/sound/soc/tegra/tegra20_ac97.c b/sound/soc/tegra/tegra20_ac97.c index 336dcdd..2d7b8c2 100644 --- a/sound/soc/tegra/tegra20_ac97.c +++ b/sound/soc/tegra/tegra20_ac97.c @@ -35,6 +35,7 @@ #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> +#include <sound/dmaengine_pcm.h> #include "tegra_asoc_utils.h" #include "tegra20_ac97.h" @@ -389,14 +390,14 @@ static int tegra20_ac97_platform_probe(struct platform_device *pdev) } ac97->capture_dma_data.addr = mem->start + TEGRA20_AC97_FIFO_RX1; - ac97->capture_dma_data.wrap = 4; - ac97->capture_dma_data.width = 32; - ac97->capture_dma_data.req_sel = of_dma[1]; + ac97->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + ac97->capture_dma_data.maxburst = 4; + ac97->capture_dma_data.slave_id = of_dma[1]; ac97->playback_dma_data.addr = mem->start + TEGRA20_AC97_FIFO_TX1; - ac97->playback_dma_data.wrap = 4; - ac97->playback_dma_data.width = 32; - ac97->playback_dma_data.req_sel = of_dma[1]; + ac97->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + ac97->capture_dma_data.maxburst = 4; + ac97->capture_dma_data.slave_id = of_dma[0]; ret = snd_soc_register_dais(&pdev->dev, &tegra20_ac97_dai, 1); if (ret) { diff --git a/sound/soc/tegra/tegra20_ac97.h b/sound/soc/tegra/tegra20_ac97.h index dddc682..4acb3aa 100644 --- a/sound/soc/tegra/tegra20_ac97.h +++ b/sound/soc/tegra/tegra20_ac97.h @@ -85,8 +85,8 @@ struct tegra20_ac97 { struct clk *clk_ac97; - struct tegra_pcm_dma_params capture_dma_data; - struct tegra_pcm_dma_params playback_dma_data; + struct snd_dmaengine_dai_dma_data capture_dma_data; + struct snd_dmaengine_dai_dma_data playback_dma_data; struct regmap *regmap; int reset_gpio; int sync_gpio; diff --git a/sound/soc/tegra/tegra20_i2s.c b/sound/soc/tegra/tegra20_i2s.c index caa772d..e6651e0 100644 --- a/sound/soc/tegra/tegra20_i2s.c +++ b/sound/soc/tegra/tegra20_i2s.c @@ -41,6 +41,7 @@ #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> +#include <sound/dmaengine_pcm.h> #include "tegra20_i2s.h" @@ -403,14 +404,14 @@ static int tegra20_i2s_platform_probe(struct platform_device *pdev) } i2s->capture_dma_data.addr = mem->start + TEGRA20_I2S_FIFO2; - i2s->capture_dma_data.wrap = 4; - i2s->capture_dma_data.width = 32; - i2s->capture_dma_data.req_sel = dma_ch; + i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + i2s->capture_dma_data.maxburst = 4; + i2s->capture_dma_data.slave_id = dma_ch; i2s->playback_dma_data.addr = mem->start + TEGRA20_I2S_FIFO1; - i2s->playback_dma_data.wrap = 4; - i2s->playback_dma_data.width = 32; - i2s->playback_dma_data.req_sel = dma_ch; + i2s->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + i2s->playback_dma_data.maxburst = 4; + i2s->playback_dma_data.slave_id = dma_ch; pm_runtime_enable(&pdev->dev); if (!pm_runtime_enabled(&pdev->dev)) { diff --git a/sound/soc/tegra/tegra20_i2s.h b/sound/soc/tegra/tegra20_i2s.h index 7299587..fa6c29c 100644 --- a/sound/soc/tegra/tegra20_i2s.h +++ b/sound/soc/tegra/tegra20_i2s.h @@ -155,8 +155,8 @@ struct tegra20_i2s { struct snd_soc_dai_driver dai; struct clk *clk_i2s; - struct tegra_pcm_dma_params capture_dma_data; - struct tegra_pcm_dma_params playback_dma_data; + struct snd_dmaengine_dai_dma_data capture_dma_data; + struct snd_dmaengine_dai_dma_data playback_dma_data; struct regmap *regmap; }; diff --git a/sound/soc/tegra/tegra20_spdif.c b/sound/soc/tegra/tegra20_spdif.c index 04771d1..b7b4743 100644 --- a/sound/soc/tegra/tegra20_spdif.c +++ b/sound/soc/tegra/tegra20_spdif.c @@ -32,6 +32,7 @@ #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> +#include <sound/dmaengine_pcm.h> #include "tegra20_spdif.h" @@ -318,9 +319,9 @@ static int tegra20_spdif_platform_probe(struct platform_device *pdev) } spdif->playback_dma_data.addr = mem->start + TEGRA20_SPDIF_DATA_OUT; - spdif->playback_dma_data.wrap = 4; - spdif->playback_dma_data.width = 32; - spdif->playback_dma_data.req_sel = dmareq->start; + spdif->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + spdif->capture_dma_data.maxburst = 4; + spdif->playback_dma_data.slave_id = dmareq->start; pm_runtime_enable(&pdev->dev); if (!pm_runtime_enabled(&pdev->dev)) { diff --git a/sound/soc/tegra/tegra20_spdif.h b/sound/soc/tegra/tegra20_spdif.h index b48d699..85a9aef 100644 --- a/sound/soc/tegra/tegra20_spdif.h +++ b/sound/soc/tegra/tegra20_spdif.h @@ -462,8 +462,8 @@ struct tegra20_spdif { struct clk *clk_spdif_out; - struct tegra_pcm_dma_params capture_dma_data; - struct tegra_pcm_dma_params playback_dma_data; + struct snd_dmaengine_dai_dma_data capture_dma_data; + struct snd_dmaengine_dai_dma_data playback_dma_data; struct regmap *regmap; }; diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c index e5cfb4a..5e08f3e 100644 --- a/sound/soc/tegra/tegra30_ahub.c +++ b/sound/soc/tegra/tegra30_ahub.c @@ -95,8 +95,8 @@ static int tegra30_ahub_runtime_resume(struct device *dev) } int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif, - unsigned long *fiforeg, - unsigned long *reqsel) + dma_addr_t *fiforeg, + unsigned int *reqsel) { int channel; u32 reg, val; @@ -178,8 +178,8 @@ int tegra30_ahub_free_rx_fifo(enum tegra30_ahub_rxcif rxcif) EXPORT_SYMBOL_GPL(tegra30_ahub_free_rx_fifo); int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif, - unsigned long *fiforeg, - unsigned long *reqsel) + dma_addr_t *fiforeg, + unsigned int *reqsel) { int channel; u32 reg, val; diff --git a/sound/soc/tegra/tegra30_ahub.h b/sound/soc/tegra/tegra30_ahub.h index e690e2e..b7d7c1a 100644 --- a/sound/soc/tegra/tegra30_ahub.h +++ b/sound/soc/tegra/tegra30_ahub.h @@ -451,15 +451,15 @@ enum tegra30_ahub_rxcif { }; extern int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif, - unsigned long *fiforeg, - unsigned long *reqsel); + dma_addr_t *fiforeg, + unsigned int *reqsel); extern int tegra30_ahub_enable_rx_fifo(enum tegra30_ahub_rxcif rxcif); extern int tegra30_ahub_disable_rx_fifo(enum tegra30_ahub_rxcif rxcif); extern int tegra30_ahub_free_rx_fifo(enum tegra30_ahub_rxcif rxcif); extern int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif, - unsigned long *fiforeg, - unsigned long *reqsel); + dma_addr_t *fiforeg, + unsigned int *reqsel); extern int tegra30_ahub_enable_tx_fifo(enum tegra30_ahub_txcif txcif); extern int tegra30_ahub_disable_tx_fifo(enum tegra30_ahub_txcif txcif); extern int tegra30_ahub_free_tx_fifo(enum tegra30_ahub_txcif txcif); diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c index f4e1ce8..857ec21 100644 --- a/sound/soc/tegra/tegra30_i2s.c +++ b/sound/soc/tegra/tegra30_i2s.c @@ -38,6 +38,7 @@ #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> +#include <sound/dmaengine_pcm.h> #include "tegra30_ahub.h" #include "tegra30_i2s.h" @@ -80,17 +81,17 @@ static int tegra30_i2s_startup(struct snd_pcm_substream *substream, if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { ret = tegra30_ahub_allocate_tx_fifo(&i2s->playback_fifo_cif, &i2s->playback_dma_data.addr, - &i2s->playback_dma_data.req_sel); - i2s->playback_dma_data.wrap = 4; - i2s->playback_dma_data.width = 32; + &i2s->playback_dma_data.slave_id); + i2s->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + i2s->playback_dma_data.maxburst = 4; tegra30_ahub_set_rx_cif_source(i2s->playback_i2s_cif, i2s->playback_fifo_cif); } else { ret = tegra30_ahub_allocate_rx_fifo(&i2s->capture_fifo_cif, &i2s->capture_dma_data.addr, - &i2s->capture_dma_data.req_sel); - i2s->capture_dma_data.wrap = 4; - i2s->capture_dma_data.width = 32; + &i2s->capture_dma_data.slave_id); + i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + i2s->capture_dma_data.maxburst = 4; tegra30_ahub_set_rx_cif_source(i2s->capture_fifo_cif, i2s->capture_i2s_cif); } diff --git a/sound/soc/tegra/tegra30_i2s.h b/sound/soc/tegra/tegra30_i2s.h index a294d94..bea23af 100644 --- a/sound/soc/tegra/tegra30_i2s.h +++ b/sound/soc/tegra/tegra30_i2s.h @@ -231,10 +231,10 @@ struct tegra30_i2s { struct clk *clk_i2s; enum tegra30_ahub_txcif capture_i2s_cif; enum tegra30_ahub_rxcif capture_fifo_cif; - struct tegra_pcm_dma_params capture_dma_data; + struct snd_dmaengine_dai_dma_data capture_dma_data; enum tegra30_ahub_rxcif playback_i2s_cif; enum tegra30_ahub_txcif playback_fifo_cif; - struct tegra_pcm_dma_params playback_dma_data; + struct snd_dmaengine_dai_dma_data playback_dma_data; struct regmap *regmap; }; diff --git a/sound/soc/tegra/tegra_pcm.c b/sound/soc/tegra/tegra_pcm.c index 5e2c55c..f056f63 100644 --- a/sound/soc/tegra/tegra_pcm.c +++ b/sound/soc/tegra/tegra_pcm.c @@ -29,9 +29,7 @@ * */ -#include <linux/dma-mapping.h> #include <linux/module.h> -#include <linux/slab.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -55,191 +53,24 @@ static const struct snd_pcm_hardware tegra_pcm_hardware = { .fifo_size = 4, }; -static int tegra_pcm_open(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct device *dev = rtd->platform->dev; - int ret; - - /* Set HW params now that initialization is complete */ - snd_soc_set_runtime_hwparams(substream, &tegra_pcm_hardware); - - ret = snd_dmaengine_pcm_open(substream, NULL, NULL); - if (ret) { - dev_err(dev, "dmaengine pcm open failed with err %d\n", ret); - return ret; - } - - return 0; -} - -static int tegra_pcm_close(struct snd_pcm_substream *substream) -{ - snd_dmaengine_pcm_close(substream); - return 0; -} - -static int tegra_pcm_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct device *dev = rtd->platform->dev; - struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream); - struct tegra_pcm_dma_params *dmap; - struct dma_slave_config slave_config; - int ret; - - dmap = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - - ret = snd_hwparams_to_dma_slave_config(substream, params, - &slave_config); - if (ret) { - dev_err(dev, "hw params config failed with err %d\n", ret); - return ret; - } - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - slave_config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - slave_config.dst_addr = dmap->addr; - slave_config.dst_maxburst = 4; - } else { - slave_config.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - slave_config.src_addr = dmap->addr; - slave_config.src_maxburst = 4; - } - slave_config.slave_id = dmap->req_sel; - - ret = dmaengine_slave_config(chan, &slave_config); - if (ret < 0) { - dev_err(dev, "dma slave config failed with err %d\n", ret); - return ret; - } - - snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); - return 0; -} - -static int tegra_pcm_hw_free(struct snd_pcm_substream *substream) -{ - snd_pcm_set_runtime_buffer(substream, NULL); - return 0; -} - -static int tegra_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 tegra_pcm_ops = { - .open = tegra_pcm_open, - .close = tegra_pcm_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = tegra_pcm_hw_params, - .hw_free = tegra_pcm_hw_free, - .trigger = snd_dmaengine_pcm_trigger, - .pointer = snd_dmaengine_pcm_pointer, - .mmap = tegra_pcm_mmap, -}; - -static int tegra_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 = tegra_pcm_hardware.buffer_bytes_max; - - buf->area = dma_alloc_writecombine(pcm->card->dev, size, - &buf->addr, GFP_KERNEL); - if (!buf->area) - return -ENOMEM; - - buf->dev.type = SNDRV_DMA_TYPE_DEV; - buf->dev.dev = pcm->card->dev; - buf->private_data = NULL; - buf->bytes = size; - - return 0; -} - -static void tegra_pcm_deallocate_dma_buffer(struct snd_pcm *pcm, int stream) -{ - struct snd_pcm_substream *substream; - struct snd_dma_buffer *buf; - - substream = pcm->streams[stream].substream; - if (!substream) - return; - - buf = &substream->dma_buffer; - if (!buf->area) - return; - - dma_free_writecombine(pcm->card->dev, buf->bytes, - buf->area, buf->addr); - buf->area = NULL; -} - -static u64 tegra_dma_mask = DMA_BIT_MASK(32); - -static int tegra_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 = &tegra_dma_mask; - if (!card->dev->coherent_dma_mask) - card->dev->coherent_dma_mask = DMA_BIT_MASK(32); - - if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) { - ret = tegra_pcm_preallocate_dma_buffer(pcm, - SNDRV_PCM_STREAM_PLAYBACK); - if (ret) - goto err; - } - - if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) { - ret = tegra_pcm_preallocate_dma_buffer(pcm, - SNDRV_PCM_STREAM_CAPTURE); - if (ret) - goto err_free_play; - } - - return 0; - -err_free_play: - tegra_pcm_deallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK); -err: - return ret; -} - -static void tegra_pcm_free(struct snd_pcm *pcm) -{ - tegra_pcm_deallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_CAPTURE); - tegra_pcm_deallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK); -} - -static struct snd_soc_platform_driver tegra_pcm_platform = { - .ops = &tegra_pcm_ops, - .pcm_new = tegra_pcm_new, - .pcm_free = tegra_pcm_free, +static const struct snd_dmaengine_pcm_config tegra_dmaengine_pcm_config = { + .pcm_hardware = &tegra_pcm_hardware, + .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, + .compat_filter_fn = NULL, + .prealloc_buffer_size = PAGE_SIZE * 8, }; int tegra_pcm_platform_register(struct device *dev) { - return snd_soc_register_platform(dev, &tegra_pcm_platform); + return snd_dmaengine_pcm_register(dev, &tegra_dmaengine_pcm_config, + SND_DMAENGINE_PCM_FLAG_NO_DT | + SND_DMAENGINE_PCM_FLAG_COMPAT); } EXPORT_SYMBOL_GPL(tegra_pcm_platform_register); void tegra_pcm_platform_unregister(struct device *dev) { - snd_soc_unregister_platform(dev); + return snd_dmaengine_pcm_unregister(dev); } EXPORT_SYMBOL_GPL(tegra_pcm_platform_unregister); diff --git a/sound/soc/tegra/tegra_pcm.h b/sound/soc/tegra/tegra_pcm.h index bc8b46a..68ad901 100644 --- a/sound/soc/tegra/tegra_pcm.h +++ b/sound/soc/tegra/tegra_pcm.h @@ -31,13 +31,6 @@ #ifndef __TEGRA_PCM_H__ #define __TEGRA_PCM_H__ -struct tegra_pcm_dma_params { - unsigned long addr; - unsigned long wrap; - unsigned long width; - unsigned long req_sel; -}; - int tegra_pcm_platform_register(struct device *dev); void tegra_pcm_platform_unregister(struct device *dev); diff --git a/sound/soc/ux500/Kconfig b/sound/soc/ux500/Kconfig index 069330d..c73c590 100644 --- a/sound/soc/ux500/Kconfig +++ b/sound/soc/ux500/Kconfig @@ -16,7 +16,7 @@ config SND_SOC_UX500_PLAT_MSP_I2S config SND_SOC_UX500_PLAT_DMA tristate "Platform - DB8500 (DMA)" depends on SND_SOC_UX500 - select SND_SOC_DMAENGINE_PCM + select SND_SOC_GENERIC_DMAENGINE_PCM help Say Y if you want to enable the Ux500 platform-driver. diff --git a/sound/soc/ux500/ux500_pcm.c b/sound/soc/ux500/ux500_pcm.c index 846fa82..b6e5ae2 100644 --- a/sound/soc/ux500/ux500_pcm.c +++ b/sound/soc/ux500/ux500_pcm.c @@ -28,28 +28,19 @@ #include "ux500_msp_i2s.h" #include "ux500_pcm.h" -static struct snd_pcm_hardware ux500_pcm_hw_playback = { - .info = SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_RESUME | - SNDRV_PCM_INFO_PAUSE, - .formats = SNDRV_PCM_FMTBIT_S16_LE | - SNDRV_PCM_FMTBIT_U16_LE | - SNDRV_PCM_FMTBIT_S16_BE | - SNDRV_PCM_FMTBIT_U16_BE, - .rates = SNDRV_PCM_RATE_KNOT, - .rate_min = UX500_PLATFORM_MIN_RATE_PLAYBACK, - .rate_max = UX500_PLATFORM_MAX_RATE_PLAYBACK, - .channels_min = UX500_PLATFORM_MIN_CHANNELS, - .channels_max = UX500_PLATFORM_MAX_CHANNELS, - .buffer_bytes_max = UX500_PLATFORM_BUFFER_BYTES_MAX, - .period_bytes_min = UX500_PLATFORM_PERIODS_BYTES_MIN, - .period_bytes_max = UX500_PLATFORM_PERIODS_BYTES_MAX, - .periods_min = UX500_PLATFORM_PERIODS_MIN, - .periods_max = UX500_PLATFORM_PERIODS_MAX, -}; +#define UX500_PLATFORM_MIN_RATE 8000 +#define UX500_PLATFORM_MAX_RATE 48000 + +#define UX500_PLATFORM_MIN_CHANNELS 1 +#define UX500_PLATFORM_MAX_CHANNELS 8 -static struct snd_pcm_hardware ux500_pcm_hw_capture = { +#define UX500_PLATFORM_PERIODS_BYTES_MIN 128 +#define UX500_PLATFORM_PERIODS_BYTES_MAX (64 * PAGE_SIZE) +#define UX500_PLATFORM_PERIODS_MIN 2 +#define UX500_PLATFORM_PERIODS_MAX 48 +#define UX500_PLATFORM_BUFFER_BYTES_MAX (2048 * PAGE_SIZE) + +static const struct snd_pcm_hardware ux500_pcm_hw = { .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_RESUME | @@ -59,8 +50,8 @@ static struct snd_pcm_hardware ux500_pcm_hw_capture = { SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_U16_BE, .rates = SNDRV_PCM_RATE_KNOT, - .rate_min = UX500_PLATFORM_MIN_RATE_CAPTURE, - .rate_max = UX500_PLATFORM_MAX_RATE_CAPTURE, + .rate_min = UX500_PLATFORM_MIN_RATE, + .rate_max = UX500_PLATFORM_MAX_RATE, .channels_min = UX500_PLATFORM_MIN_CHANNELS, .channels_max = UX500_PLATFORM_MAX_CHANNELS, .buffer_bytes_max = UX500_PLATFORM_BUFFER_BYTES_MAX, @@ -70,64 +61,23 @@ static struct snd_pcm_hardware ux500_pcm_hw_capture = { .periods_max = UX500_PLATFORM_PERIODS_MAX, }; -static void ux500_pcm_dma_hw_free(struct device *dev, - struct snd_pcm_substream *substream) +static struct dma_chan *ux500_pcm_request_chan(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_substream *substream) { - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_dma_buffer *buf = runtime->dma_buffer_p; - - if (runtime->dma_area == NULL) - return; - - if (buf != &substream->dma_buffer) { - dma_free_coherent(buf->dev.dev, buf->bytes, buf->area, - buf->addr); - kfree(runtime->dma_buffer_p); - } - - snd_pcm_set_runtime_buffer(substream, NULL); -} - -static int ux500_pcm_open(struct snd_pcm_substream *substream) -{ - int stream_id = substream->pstr->stream; - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *dai = rtd->cpu_dai; struct device *dev = dai->dev; - int ret; - struct ux500_msp_dma_params *dma_params; u16 per_data_width, mem_data_width; struct stedma40_chan_cfg *dma_cfg; + struct ux500_msp_dma_params *dma_params; dev_dbg(dev, "%s: MSP %d (%s): Enter.\n", __func__, dai->id, snd_pcm_stream_str(substream)); - dev_dbg(dev, "%s: Set runtime hwparams.\n", __func__); - if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) - snd_soc_set_runtime_hwparams(substream, - &ux500_pcm_hw_playback); - else - snd_soc_set_runtime_hwparams(substream, - &ux500_pcm_hw_capture); - - /* ensure that buffer size is a multiple of period size */ - ret = snd_pcm_hw_constraint_integer(runtime, - SNDRV_PCM_HW_PARAM_PERIODS); - if (ret < 0) { - dev_err(dev, "%s: Error: snd_pcm_hw_constraints failed (%d)\n", - __func__, ret); - return ret; - } - - dev_dbg(dev, "%s: Set hw-struct for %s.\n", __func__, - snd_pcm_stream_str(substream)); - runtime->hw = (stream_id == SNDRV_PCM_STREAM_PLAYBACK) ? - ux500_pcm_hw_playback : ux500_pcm_hw_capture; + dma_params = snd_soc_dai_get_dma_data(dai, substream); + dma_cfg = dma_params->dma_cfg; mem_data_width = STEDMA40_HALFWORD_WIDTH; - dma_params = snd_soc_dai_get_dma_data(dai, substream); switch (dma_params->data_size) { case 32: per_data_width = STEDMA40_WORD_WIDTH; @@ -140,13 +90,8 @@ static int ux500_pcm_open(struct snd_pcm_substream *substream) break; default: per_data_width = STEDMA40_WORD_WIDTH; - dev_warn(rtd->platform->dev, - "%s: Unknown data-size (%d)! Assuming 32 bits.\n", - __func__, dma_params->data_size); } - dma_cfg = dma_params->dma_cfg; - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { dma_cfg->src_info.data_width = mem_data_width; dma_cfg->dst_info.data_width = per_data_width; @@ -155,137 +100,24 @@ static int ux500_pcm_open(struct snd_pcm_substream *substream) dma_cfg->dst_info.data_width = mem_data_width; } - - ret = snd_dmaengine_pcm_open(substream, stedma40_filter, dma_cfg); - if (ret) { - dev_dbg(dai->dev, - "%s: ERROR: snd_dmaengine_pcm_open failed (%d)!\n", - __func__, ret); - return ret; - } - - snd_dmaengine_pcm_set_data(substream, dma_cfg); - - return 0; -} - -static int ux500_pcm_close(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *dai = rtd->cpu_dai; - - dev_dbg(dai->dev, "%s: Enter\n", __func__); - - snd_dmaengine_pcm_close(substream); - - return 0; -} - -static int ux500_pcm_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_dma_buffer *buf = runtime->dma_buffer_p; - struct snd_soc_pcm_runtime *rtd = substream->private_data; - int ret = 0; - int size; - - dev_dbg(rtd->platform->dev, "%s: Enter\n", __func__); - - size = params_buffer_bytes(hw_params); - - if (buf) { - if (buf->bytes >= size) - goto out; - ux500_pcm_dma_hw_free(NULL, substream); - } - - if (substream->dma_buffer.area != NULL && - substream->dma_buffer.bytes >= size) { - buf = &substream->dma_buffer; - } else { - buf = kmalloc(sizeof(struct snd_dma_buffer), GFP_KERNEL); - if (!buf) - goto nomem; - - buf->dev.type = SNDRV_DMA_TYPE_DEV; - buf->dev.dev = NULL; - buf->area = dma_alloc_coherent(NULL, size, &buf->addr, - GFP_KERNEL); - buf->bytes = size; - buf->private_data = NULL; - - if (!buf->area) - goto free; - } - snd_pcm_set_runtime_buffer(substream, buf); - ret = 1; - out: - runtime->dma_bytes = size; - return ret; - - free: - kfree(buf); - nomem: - return -ENOMEM; + return snd_dmaengine_pcm_request_channel(stedma40_filter, dma_cfg); } -static int ux500_pcm_hw_free(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - - dev_dbg(rtd->platform->dev, "%s: Enter\n", __func__); - - ux500_pcm_dma_hw_free(NULL, substream); - - return 0; -} - -static int ux500_pcm_mmap(struct snd_pcm_substream *substream, - struct vm_area_struct *vma) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_soc_pcm_runtime *rtd = substream->private_data; - - dev_dbg(rtd->platform->dev, "%s: Enter.\n", __func__); - - return dma_mmap_coherent(NULL, vma, runtime->dma_area, - runtime->dma_addr, runtime->dma_bytes); -} - -static struct snd_pcm_ops ux500_pcm_ops = { - .open = ux500_pcm_open, - .close = ux500_pcm_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = ux500_pcm_hw_params, - .hw_free = ux500_pcm_hw_free, - .trigger = snd_dmaengine_pcm_trigger, - .pointer = snd_dmaengine_pcm_pointer_no_residue, - .mmap = ux500_pcm_mmap -}; - -int ux500_pcm_new(struct snd_soc_pcm_runtime *rtd) -{ - struct snd_pcm *pcm = rtd->pcm; - - dev_dbg(rtd->platform->dev, "%s: Enter (id = '%s').\n", __func__, - pcm->id); - - pcm->info_flags = 0; - - return 0; -} - -static struct snd_soc_platform_driver ux500_pcm_soc_drv = { - .ops = &ux500_pcm_ops, - .pcm_new = ux500_pcm_new, +static const struct snd_dmaengine_pcm_config ux500_dmaengine_pcm_config = { + .pcm_hardware = &ux500_pcm_hw, + .compat_request_channel = ux500_pcm_request_chan, + .prealloc_buffer_size = 128 * 1024, }; int ux500_pcm_register_platform(struct platform_device *pdev) { int ret; - ret = snd_soc_register_platform(&pdev->dev, &ux500_pcm_soc_drv); + ret = snd_dmaengine_pcm_register(&pdev->dev, + &ux500_dmaengine_pcm_config, + SND_DMAENGINE_PCM_FLAG_NO_RESIDUE | + SND_DMAENGINE_PCM_FLAG_COMPAT | + SND_DMAENGINE_PCM_FLAG_NO_DT); if (ret < 0) { dev_err(&pdev->dev, "%s: ERROR: Failed to register platform '%s' (%d)!\n", @@ -299,8 +131,7 @@ EXPORT_SYMBOL_GPL(ux500_pcm_register_platform); int ux500_pcm_unregister_platform(struct platform_device *pdev) { - snd_soc_unregister_platform(&pdev->dev); - + snd_dmaengine_pcm_unregister(&pdev->dev); return 0; } EXPORT_SYMBOL_GPL(ux500_pcm_unregister_platform); diff --git a/sound/soc/ux500/ux500_pcm.h b/sound/soc/ux500/ux500_pcm.h index 76d3444..d76e1af 100644 --- a/sound/soc/ux500/ux500_pcm.h +++ b/sound/soc/ux500/ux500_pcm.h @@ -18,20 +18,6 @@ #include <linux/workqueue.h> -#define UX500_PLATFORM_MIN_RATE_PLAYBACK 8000 -#define UX500_PLATFORM_MAX_RATE_PLAYBACK 48000 -#define UX500_PLATFORM_MIN_RATE_CAPTURE 8000 -#define UX500_PLATFORM_MAX_RATE_CAPTURE 48000 - -#define UX500_PLATFORM_MIN_CHANNELS 1 -#define UX500_PLATFORM_MAX_CHANNELS 8 - -#define UX500_PLATFORM_PERIODS_BYTES_MIN 128 -#define UX500_PLATFORM_PERIODS_BYTES_MAX (64 * PAGE_SIZE) -#define UX500_PLATFORM_PERIODS_MIN 2 -#define UX500_PLATFORM_PERIODS_MAX 48 -#define UX500_PLATFORM_BUFFER_BYTES_MAX (2048 * PAGE_SIZE) - int ux500_pcm_register_platform(struct platform_device *pdev); int ux500_pcm_unregister_platform(struct platform_device *pdev); |