diff options
author | Jon Medhurst <tixy@linaro.org> | 2015-04-09 12:37:26 +0100 |
---|---|---|
committer | Jon Medhurst <tixy@linaro.org> | 2015-04-09 12:37:26 +0100 |
commit | 2c7554c9da93fd6a442cfa383eaba519e7e2b335 (patch) | |
tree | d19144b01d4b4e4575246532f87ae5c177a8150f | |
parent | 8a9024d86769573cbf5d2d7477b4d446c5309e7c (diff) | |
parent | 3fba00c16a96323fdeaca97d45d8ec11315f602a (diff) |
Merge branch 'lsk-3.10-armlt-asoc' into integration-lsk-3.10-juno-androidlsk-3.10-armlt-juno-20150409
Conflicts:
arch/arm64/boot/dts/juno.dts
linaro/configs/vexpress64.conf
-rw-r--r-- | Documentation/devicetree/bindings/sound/hdmi.txt | 17 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/sound/simple-card.txt | 77 | ||||
-rw-r--r-- | arch/arm64/boot/dts/juno.dts | 46 | ||||
-rw-r--r-- | include/sound/dmaengine_pcm.h | 12 | ||||
-rw-r--r-- | include/sound/soc-dai.h | 7 | ||||
-rw-r--r-- | include/sound/soc.h | 47 | ||||
-rw-r--r-- | linaro/configs/vexpress64.conf | 14 | ||||
-rw-r--r-- | sound/soc/Makefile | 2 | ||||
-rw-r--r-- | sound/soc/codecs/Kconfig | 4 | ||||
-rw-r--r-- | sound/soc/codecs/Makefile | 4 | ||||
-rw-r--r-- | sound/soc/codecs/hdmi.c | 107 | ||||
-rw-r--r-- | sound/soc/codecs/omap-hdmi.c | 69 | ||||
-rw-r--r-- | sound/soc/dwc/Kconfig | 1 | ||||
-rw-r--r-- | sound/soc/dwc/designware_i2s.c | 349 | ||||
-rw-r--r-- | sound/soc/fsl/imx-pcm-dma.c | 4 | ||||
-rw-r--r-- | sound/soc/generic/simple-card.c | 230 | ||||
-rw-r--r-- | sound/soc/omap/omap-hdmi-card.c | 2 | ||||
-rw-r--r-- | sound/soc/soc-core.c | 265 | ||||
-rw-r--r-- | sound/soc/soc-devres.c | 127 | ||||
-rw-r--r-- | sound/soc/soc-generic-dmaengine-pcm.c | 167 |
20 files changed, 1208 insertions, 343 deletions
diff --git a/Documentation/devicetree/bindings/sound/hdmi.txt b/Documentation/devicetree/bindings/sound/hdmi.txt new file mode 100644 index 000000000000..31af7bca3099 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/hdmi.txt @@ -0,0 +1,17 @@ +Device-Tree bindings for dummy HDMI codec + +Required properties: + - compatible: should be "linux,hdmi-audio". + +CODEC output pins: + * TX + +CODEC input pins: + * RX + +Example node: + + hdmi_audio: hdmi_audio@0 { + compatible = "linux,hdmi-audio"; + status = "okay"; + }; diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt b/Documentation/devicetree/bindings/sound/simple-card.txt new file mode 100644 index 000000000000..e9e20ec67d62 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/simple-card.txt @@ -0,0 +1,77 @@ +Simple-Card: + +Simple-Card specifies audio DAI connection of SoC <-> codec. + +Required properties: + +- compatible : "simple-audio-card" + +Optional properties: + +- simple-audio-card,format : CPU/CODEC common audio format. + "i2s", "right_j", "left_j" , "dsp_a" + "dsp_b", "ac97", "pdm", "msb", "lsb" +- simple-audio-card,routing : A list of the connections between audio components. + Each entry is a pair of strings, the first being the + connection's sink, the second being the connection's + source. + +Required subnodes: + +- simple-audio-card,cpu : CPU sub-node +- simple-audio-card,codec : CODEC sub-node + +Required CPU/CODEC subnodes properties: + +- sound-dai : phandle and port of CPU/CODEC + +Optional CPU/CODEC subnodes properties: + +- format : CPU/CODEC specific audio format if needed. + see simple-audio-card,format +- frame-master : bool property. add this if subnode is frame master +- bitclock-master : bool property. add this if subnode is bitclock master +- bitclock-inversion : bool property. add this if subnode has clock inversion +- frame-inversion : bool property. add this if subnode has frame inversion +- clocks / system-clock-frequency : specify subnode's clock if needed. + it can be specified via "clocks" if system has + clock node (= common clock), or "system-clock-frequency" + (if system doens't support common clock) + +Example: + +sound { + compatible = "simple-audio-card"; + simple-audio-card,format = "left_j"; + simple-audio-routing = + "MIC_IN", "Mic Jack", + "Headphone Jack", "HP_OUT", + "Ext Spk", "LINE_OUT"; + + simple-audio-card,cpu { + sound-dai = <&sh_fsi2 0>; + }; + + simple-audio-card,codec { + sound-dai = <&ak4648>; + bitclock-master; + frame-master; + clocks = <&osc>; + }; +}; + +&i2c0 { + ak4648: ak4648@12 { + #sound-dai-cells = <0>; + compatible = "asahi-kasei,ak4648"; + reg = <0x12>; + }; +}; + +sh_fsi2: sh_fsi2@ec230000 { + #sound-dai-cells = <1>; + compatible = "renesas,sh_fsi2"; + reg = <0xec230000 0x400>; + interrupt-parent = <&gic>; + interrupts = <0 146 0x4>; +}; diff --git a/arch/arm64/boot/dts/juno.dts b/arch/arm64/boot/dts/juno.dts index 1eee437d357f..9ad05e4e072b 100644 --- a/arch/arm64/boot/dts/juno.dts +++ b/arch/arm64/boot/dts/juno.dts @@ -289,12 +289,19 @@ /include/ "juno-clocks.dtsi" + soc_i2sclk: clki2s { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <2116800>; + clock-output-names = "i2sclk"; + }; + hwmon@1c010000 { compatible = "arm,v2m-juno-meters"; reg = <0x0 0x1c010000 0x0 0x1000>; }; - dma@7ff00000 { + dma0: dma@7ff00000 { compatible = "arm,pl330", "arm,primecell"; reg = <0x0 0x7ff00000 0 0x1000>; #dma-cells = <1>; @@ -333,11 +340,17 @@ dvi0: dvi-transmitter@70 { compatible = "nxp,tda998x"; reg = <0x70>; + audio-ports = <0x03>, <0x04>; + audio-port-names = "i2s", "spdif"; + #sound-dai-cells = <1>; }; dvi1: dvi-transmitter@71 { compatible = "nxp,tda998x"; reg = <0x71>; + audio-ports = <0x03>, <0x04>; + audio-port-names = "i2s", "spdif"; + #sound-dai-cells = <1>; }; }; @@ -431,6 +444,37 @@ clock-names = "clk_mali"; }; + soc_i2s: i2s@7ff90000 { + compatible = "snps,i2s"; + reg = <0x0 0x7ff90000 0x0 0x1000>; + clocks = <&scpi_i2sclk 0>, <&soc_refclk100mhz>; + clock-names = "i2sclk", "apb_pclk"; + #sound-dai-cells = <0>; + dmas = <&dma0 5>; + dma-names = "tx"; + }; + + hdmi_audio: hdmi_audio@0 { + compatible = "linux,hdmi-audio"; + #sound-dai-cells = <0>; + status = "okay"; + }; + + sound { + compatible = "simple-audio-card"; + + simple-audio-card,format = "i2s"; + + simple-audio-card,cpu { + sound-dai = <&soc_i2s>; + }; + + simple-audio-card,codec { + sound-dai = <&dvi0 0>; + }; + + }; + smb { compatible = "simple-bus"; #address-cells = <2>; diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h index f11c35cd5532..4ef986cab182 100644 --- a/include/sound/dmaengine_pcm.h +++ b/include/sound/dmaengine_pcm.h @@ -61,6 +61,8 @@ struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream) * @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. + * @chan_name: Custom channel name to use when requesting DMA channel. + * @fifo_size: FIFO size of the DAI controller in bytes */ struct snd_dmaengine_dai_dma_data { dma_addr_t addr; @@ -68,6 +70,8 @@ struct snd_dmaengine_dai_dma_data { u32 maxburst; unsigned int slave_id; void *filter_data; + const char *chan_name; + unsigned int fifo_size; }; void snd_dmaengine_pcm_set_config_from_dai_data( @@ -96,6 +100,10 @@ void snd_dmaengine_pcm_set_config_from_dai_data( * playback. */ #define SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX BIT(3) +/* + * The PCM streams have custom channel names specified. + */ +#define SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME BIT(4) /** * struct snd_dmaengine_pcm_config - Configuration data for dmaengine based PCM @@ -132,6 +140,10 @@ int snd_dmaengine_pcm_register(struct device *dev, unsigned int flags); void snd_dmaengine_pcm_unregister(struct device *dev); +int devm_snd_dmaengine_pcm_register(struct device *dev, + const struct snd_dmaengine_pcm_config *config, + unsigned int flags); + int snd_dmaengine_pcm_prepare_slave_config(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct dma_slave_config *slave_config); diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index ae9a227d35d3..97943fd397cc 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -276,6 +276,13 @@ static inline void snd_soc_dai_set_dma_data(struct snd_soc_dai *dai, dai->capture_dma_data = data; } +static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai, + void *playback, void *capture) +{ + dai->playback_dma_data = playback; + dai->capture_dma_data = capture; +} + static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai, void *data) { diff --git a/include/sound/soc.h b/include/sound/soc.h index 5bbdc653a826..929f793de318 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -13,6 +13,7 @@ #ifndef __LINUX_SND_SOC_H #define __LINUX_SND_SOC_H +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/types.h> #include <linux/notifier.h> @@ -369,6 +370,7 @@ int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, int snd_soc_register_card(struct snd_soc_card *card); int snd_soc_unregister_card(struct snd_soc_card *card); +int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card); int snd_soc_suspend(struct device *dev); int snd_soc_resume(struct device *dev); int snd_soc_poweroff(struct device *dev); @@ -386,6 +388,9 @@ void snd_soc_unregister_codec(struct device *dev); int snd_soc_register_component(struct device *dev, const struct snd_soc_component_driver *cmpnt_drv, struct snd_soc_dai_driver *dai_drv, int num_dai); +int devm_snd_soc_register_component(struct device *dev, + const struct snd_soc_component_driver *cmpnt_drv, + struct snd_soc_dai_driver *dai_drv, int num_dai); void snd_soc_unregister_component(struct device *dev); int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, unsigned int reg); @@ -668,6 +673,28 @@ struct snd_soc_cache_ops { int (*sync)(struct snd_soc_codec *codec); }; +/* component interface */ +struct snd_soc_component_driver { + const char *name; + + /* DT */ + int (*of_xlate_dai_name)(struct snd_soc_component *component, + struct of_phandle_args *args, + const char **dai_name); +}; + +struct snd_soc_component { + const char *name; + int id; + struct device *dev; + struct list_head list; + + struct snd_soc_dai_driver *dai_drv; + int num_dai; + + const struct snd_soc_component_driver *driver; +}; + /* SoC Audio Codec device */ struct snd_soc_codec { const char *name; @@ -715,6 +742,9 @@ struct snd_soc_codec { struct mutex cache_rw_mutex; int val_bytes; + /* component */ + struct snd_soc_component component; + /* dapm */ struct snd_soc_dapm_context dapm; unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */ @@ -734,6 +764,7 @@ struct snd_soc_codec_driver { int (*remove)(struct snd_soc_codec *); int (*suspend)(struct snd_soc_codec *); int (*resume)(struct snd_soc_codec *); + struct snd_soc_component_driver component_driver; /* Default control and setup, added after probe() is run */ const struct snd_kcontrol_new *controls; @@ -851,20 +882,6 @@ struct snd_soc_platform { #endif }; -struct snd_soc_component_driver { - const char *name; -}; - -struct snd_soc_component { - const char *name; - int id; - int num_dai; - struct device *dev; - struct list_head list; - - const struct snd_soc_component_driver *driver; -}; - struct snd_soc_dai_link { /* config - must be set by machine driver */ const char *name; /* Codec name */ @@ -1197,6 +1214,8 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, const char *propname); unsigned int snd_soc_of_parse_daifmt(struct device_node *np, const char *prefix); +int snd_soc_of_get_dai_name(struct device_node *of_node, + const char **dai_name); #include <sound/soc-dai.h> diff --git a/linaro/configs/vexpress64.conf b/linaro/configs/vexpress64.conf index 929e64cf4ad3..b84cc8c30996 100644 --- a/linaro/configs/vexpress64.conf +++ b/linaro/configs/vexpress64.conf @@ -83,3 +83,17 @@ CONFIG_MALI_PLATFORM_THIRDPARTY_NAME="juno_soc" CONFIG_MALI_PLATFORM_FAKE=y CONFIG_DMADEVICES=y CONFIG_PL330_DMA=y +CONFIG_SOUND=y +CONFIG_SND=y +CONFIG_SND_SEQUENCER=y +CONFIG_SND_SEQ_DUMMY=y +CONFIG_SND_MIXER_OSS=y +CONFIG_SND_PCM_OSS=y +CONFIG_SND_SEQUENCER_OSS=y +# CONFIG_SND_USB is not set +CONFIG_SND_SOC=y +CONFIG_SND_DESIGNWARE_I2S=y +CONFIG_SND_SOC_ALL_CODECS=y +CONFIG_SND_SOC_HDMI_CODEC=y +CONFIG_SND_SOC_SPDIF=y +CONFIG_SND_SIMPLE_CARD=y diff --git a/sound/soc/Makefile b/sound/soc/Makefile index 197b6ae54c8d..e85fb6df689d 100644 --- a/sound/soc/Makefile +++ b/sound/soc/Makefile @@ -1,5 +1,5 @@ snd-soc-core-objs := soc-core.o soc-dapm.o soc-jack.o soc-cache.o soc-utils.o -snd-soc-core-objs += soc-pcm.o soc-compress.o soc-io.o +snd-soc-core-objs += soc-pcm.o soc-compress.o soc-io.o soc-devres.o ifneq ($(CONFIG_SND_SOC_DMAENGINE_PCM),) snd-soc-core-objs += soc-dmaengine-pcm.o diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 2f45f00e31b0..d8c4f3dcf4a1 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -53,7 +53,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_MAX9877 if I2C select SND_SOC_MC13783 if MFD_MC13XXX select SND_SOC_ML26124 if I2C - select SND_SOC_OMAP_HDMI_CODEC if OMAP4_DSS_HDMI + select SND_SOC_HDMI_CODEC select SND_SOC_PCM3008 select SND_SOC_RT5631 if I2C select SND_SOC_SGTL5000 if I2C @@ -287,7 +287,7 @@ config SND_SOC_MAX98095 config SND_SOC_MAX9850 tristate -config SND_SOC_OMAP_HDMI_CODEC +config SND_SOC_HDMI_CODEC tristate config SND_SOC_PCM3008 diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index b9e41c9a1f4c..49ff12718bed 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -41,7 +41,7 @@ snd-soc-max98095-objs := max98095.o snd-soc-max9850-objs := max9850.o snd-soc-mc13783-objs := mc13783.o snd-soc-ml26124-objs := ml26124.o -snd-soc-omap-hdmi-codec-objs := omap-hdmi.o +snd-soc-hdmi-codec-objs := hdmi.o snd-soc-pcm3008-objs := pcm3008.o snd-soc-rt5631-objs := rt5631.o snd-soc-sgtl5000-objs := sgtl5000.o @@ -168,7 +168,7 @@ obj-$(CONFIG_SND_SOC_MAX98095) += snd-soc-max98095.o obj-$(CONFIG_SND_SOC_MAX9850) += snd-soc-max9850.o obj-$(CONFIG_SND_SOC_MC13783) += snd-soc-mc13783.o obj-$(CONFIG_SND_SOC_ML26124) += snd-soc-ml26124.o -obj-$(CONFIG_SND_SOC_OMAP_HDMI_CODEC) += snd-soc-omap-hdmi-codec.o +obj-$(CONFIG_SND_SOC_HDMI_CODEC) += snd-soc-hdmi-codec.o obj-$(CONFIG_SND_SOC_PCM3008) += snd-soc-pcm3008.o obj-$(CONFIG_SND_SOC_RT5631) += snd-soc-rt5631.o obj-$(CONFIG_SND_SOC_SGTL5000) += snd-soc-sgtl5000.o diff --git a/sound/soc/codecs/hdmi.c b/sound/soc/codecs/hdmi.c new file mode 100644 index 000000000000..9cb1c7d3e1dc --- /dev/null +++ b/sound/soc/codecs/hdmi.c @@ -0,0 +1,107 @@ +/* + * ALSA SoC codec driver for HDMI audio codecs. + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + * Author: Ricardo Neri <ricardo.neri@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 + * + */ +#include <linux/module.h> +#include <sound/soc.h> +#include <linux/of_device.h> + +#define DRV_NAME "hdmi-audio-codec" + +static const struct snd_soc_dapm_widget hdmi_widgets[] = { + SND_SOC_DAPM_INPUT("RX"), + SND_SOC_DAPM_OUTPUT("TX"), +}; + +static const struct snd_soc_dapm_route hdmi_routes[] = { + { "Capture", NULL, "RX" }, + { "TX", NULL, "Playback" }, +}; + +static struct snd_soc_dai_driver hdmi_codec_dai = { + .name = "hdmi-hifi", + .playback = { + .stream_name = "Playback", + .channels_min = 2, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_32000 | + SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | + SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_32000 | + SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | + SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S24_LE, + }, + +}; + +#ifdef CONFIG_OF +static const struct of_device_id hdmi_audio_codec_ids[] = { + { .compatible = "linux,hdmi-audio", }, + { } +}; +MODULE_DEVICE_TABLE(of, hdmi_audio_codec_ids); +#endif + +static struct snd_soc_codec_driver hdmi_codec = { + .dapm_widgets = hdmi_widgets, + .num_dapm_widgets = ARRAY_SIZE(hdmi_widgets), + .dapm_routes = hdmi_routes, + .num_dapm_routes = ARRAY_SIZE(hdmi_routes), +}; + +static int hdmi_codec_probe(struct platform_device *pdev) +{ + return snd_soc_register_codec(&pdev->dev, &hdmi_codec, + &hdmi_codec_dai, 1); +} + +static int hdmi_codec_remove(struct platform_device *pdev) +{ + snd_soc_unregister_codec(&pdev->dev); + return 0; +} + +static struct platform_driver hdmi_codec_driver = { + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(hdmi_audio_codec_ids), + }, + + .probe = hdmi_codec_probe, + .remove = hdmi_codec_remove, +}; + +module_platform_driver(hdmi_codec_driver); + +MODULE_AUTHOR("Ricardo Neri <ricardo.neri@ti.com>"); +MODULE_DESCRIPTION("ASoC generic HDMI codec driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_NAME); diff --git a/sound/soc/codecs/omap-hdmi.c b/sound/soc/codecs/omap-hdmi.c deleted file mode 100644 index 529d06444c54..000000000000 --- a/sound/soc/codecs/omap-hdmi.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * ALSA SoC codec driver for HDMI audio on OMAP processors. - * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ - * Author: Ricardo Neri <ricardo.neri@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 - * - */ -#include <linux/module.h> -#include <sound/soc.h> - -#define DRV_NAME "hdmi-audio-codec" - -static struct snd_soc_codec_driver omap_hdmi_codec; - -static struct snd_soc_dai_driver omap_hdmi_codec_dai = { - .name = "omap-hdmi-hifi", - .playback = { - .channels_min = 2, - .channels_max = 8, - .rates = SNDRV_PCM_RATE_32000 | - SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | - SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | - SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000, - .formats = SNDRV_PCM_FMTBIT_S16_LE | - SNDRV_PCM_FMTBIT_S24_LE, - }, -}; - -static int omap_hdmi_codec_probe(struct platform_device *pdev) -{ - return snd_soc_register_codec(&pdev->dev, &omap_hdmi_codec, - &omap_hdmi_codec_dai, 1); -} - -static int omap_hdmi_codec_remove(struct platform_device *pdev) -{ - snd_soc_unregister_codec(&pdev->dev); - return 0; -} - -static struct platform_driver omap_hdmi_codec_driver = { - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, - - .probe = omap_hdmi_codec_probe, - .remove = omap_hdmi_codec_remove, -}; - -module_platform_driver(omap_hdmi_codec_driver); - -MODULE_AUTHOR("Ricardo Neri <ricardo.neri@ti.com>"); -MODULE_DESCRIPTION("ASoC OMAP HDMI codec driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:" DRV_NAME); diff --git a/sound/soc/dwc/Kconfig b/sound/soc/dwc/Kconfig index e334900cf0b8..d50e08517dce 100644 --- a/sound/soc/dwc/Kconfig +++ b/sound/soc/dwc/Kconfig @@ -1,6 +1,7 @@ config SND_DESIGNWARE_I2S tristate "Synopsys I2S Device Driver" depends on CLKDEV_LOOKUP + select SND_SOC_GENERIC_DMAENGINE_PCM help Say Y or M if you want to add support for I2S driver for Synopsys desigwnware I2S device. The device supports upto diff --git a/sound/soc/dwc/designware_i2s.c b/sound/soc/dwc/designware_i2s.c index 489a9abf112b..e83a7b359d59 100644 --- a/sound/soc/dwc/designware_i2s.c +++ b/sound/soc/dwc/designware_i2s.c @@ -1,7 +1,7 @@ /* * ALSA SoC Synopsys I2S Audio Layer * - * sound/soc/spear/designware_i2s.c + * sound/soc/dwc/designware_i2s.c * * Copyright (C) 2010 ST Microelectronics * Rajeev Kumar <rajeev-dlh.kumar@st.com> @@ -17,11 +17,13 @@ #include <linux/io.h> #include <linux/interrupt.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/slab.h> #include <sound/designware_i2s.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> +#include <sound/dmaengine_pcm.h> /* common register for all channel */ #define IER 0x000 @@ -54,19 +56,46 @@ #define I2S_COMP_VERSION 0x01F8 #define I2S_COMP_TYPE 0x01FC +/* + * Component parameter register fields - define the I2S block's + * configuration. + */ +#define COMP1_TX_WORDSIZE_3(r) (((r) & GENMASK(27, 25)) >> 25) +#define COMP1_TX_WORDSIZE_2(r) (((r) & GENMASK(24, 22)) >> 22) +#define COMP1_TX_WORDSIZE_1(r) (((r) & GENMASK(21, 19)) >> 19) +#define COMP1_TX_WORDSIZE_0(r) (((r) & GENMASK(18, 16)) >> 16) +#define COMP1_TX_CHANNELS(r) (((r) & GENMASK(10, 9)) >> 9) +#define COMP1_RX_CHANNELS(r) (((r) & GENMASK(8, 7)) >> 7) +#define COMP1_RX_ENABLED(r) (((r) & BIT(6)) >> 6) +#define COMP1_TX_ENABLED(r) (((r) & BIT(5)) >> 5) +#define COMP1_MODE_EN(r) (((r) & BIT(4)) >> 4) +#define COMP1_FIFO_DEPTH_GLOBAL(r) (((r) & GENMASK(3, 2)) >> 2) +#define COMP1_APB_DATA_WIDTH(r) (((r) & GENMASK(1, 0)) >> 0) + +#define COMP2_RX_WORDSIZE_3(r) (((r) & GENMASK(12, 10)) >> 10) +#define COMP2_RX_WORDSIZE_2(r) (((r) & GENMASK(9, 7)) >> 7) +#define COMP2_RX_WORDSIZE_1(r) (((r) & GENMASK(5, 3)) >> 3) +#define COMP2_RX_WORDSIZE_0(r) (((r) & GENMASK(2, 0)) >> 0) + #define MAX_CHANNEL_NUM 8 #define MIN_CHANNEL_NUM 2 +union snd_dma_data { + struct i2s_dma_data pd; + struct snd_dmaengine_dai_dma_data dt; +}; + struct dw_i2s_dev { void __iomem *i2s_base; struct clk *clk; int active; unsigned int capability; struct device *dev; + bool using_pd; /* data related to DMA transfers b/w i2s and DMAC */ - struct i2s_dma_data play_dma_data; - struct i2s_dma_data capture_dma_data; + union snd_dma_data play_dma_data; + union snd_dma_data capture_dma_data; struct i2s_clk_config_data config; int (*i2s_clk_cfg)(struct i2s_clk_config_data *config); }; @@ -153,7 +182,7 @@ static int dw_i2s_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai) { struct dw_i2s_dev *dev = snd_soc_dai_get_drvdata(cpu_dai); - struct i2s_dma_data *dma_data = NULL; + union snd_dma_data *dma_data = NULL; if (!(dev->capability & DWC_I2S_RECORD) && (substream->stream == SNDRV_PCM_STREAM_CAPTURE)) @@ -227,31 +256,44 @@ static int dw_i2s_hw_params(struct snd_pcm_substream *substream, i2s_disable_channels(dev, substream->stream); - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - i2s_write_reg(dev->i2s_base, TCR(ch_reg), xfer_resolution); - i2s_write_reg(dev->i2s_base, TFCR(ch_reg), 0x02); - irq = i2s_read_reg(dev->i2s_base, IMR(ch_reg)); - i2s_write_reg(dev->i2s_base, IMR(ch_reg), irq & ~0x30); - i2s_write_reg(dev->i2s_base, TER(ch_reg), 1); - } else { - i2s_write_reg(dev->i2s_base, RCR(ch_reg), xfer_resolution); - i2s_write_reg(dev->i2s_base, RFCR(ch_reg), 0x07); - irq = i2s_read_reg(dev->i2s_base, IMR(ch_reg)); - i2s_write_reg(dev->i2s_base, IMR(ch_reg), irq & ~0x03); - i2s_write_reg(dev->i2s_base, RER(ch_reg), 1); - } + /* Iterate over set of channels - independently controlled. + */ + do { + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + i2s_write_reg(dev->i2s_base, TXFFR, 1); + i2s_write_reg(dev->i2s_base, TCR(ch_reg), + xfer_resolution); + i2s_write_reg(dev->i2s_base, TFCR(ch_reg), 0x02); + irq = i2s_read_reg(dev->i2s_base, IMR(ch_reg)); + i2s_write_reg(dev->i2s_base, IMR(ch_reg), irq & ~0x30); + i2s_write_reg(dev->i2s_base, TER(ch_reg), 1); + } else { + i2s_write_reg(dev->i2s_base, RXFFR, 1); + i2s_write_reg(dev->i2s_base, RCR(ch_reg), + xfer_resolution); + i2s_write_reg(dev->i2s_base, RFCR(ch_reg), 0x07); + irq = i2s_read_reg(dev->i2s_base, IMR(ch_reg)); + i2s_write_reg(dev->i2s_base, IMR(ch_reg), irq & ~0x03); + i2s_write_reg(dev->i2s_base, RER(ch_reg), 1); + } + } while (ch_reg-- > 0); i2s_write_reg(dev->i2s_base, CCR, ccr); config->sample_rate = params_rate(params); - if (!dev->i2s_clk_cfg) - return -EINVAL; + if (dev->using_pd) { + ret = dev->i2s_clk_cfg(config); + if (ret < 0) { + dev_err(dev->dev, "runtime audio clk config fail\n"); + return ret; + } + } else { + u32 bitclk; - ret = dev->i2s_clk_cfg(config); - if (ret < 0) { - dev_err(dev->dev, "runtime audio clk config fail\n"); - return ret; + /* TODO: Validate sample rate against permissible set */ + bitclk = config->sample_rate * config->data_width * 2; + clk_set_rate(dev->clk, bitclk); } return 0; @@ -293,7 +335,8 @@ static int dw_i2s_trigger(struct snd_pcm_substream *substream, case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - dev->active--; + if (dev->active > 0) + dev->active--; i2s_stop(dev, substream); break; default: @@ -338,6 +381,61 @@ static int dw_i2s_resume(struct snd_soc_dai *dai) #define dw_i2s_resume NULL #endif +#ifdef CONFIG_OF +static const struct of_device_id dw_i2s_of_match[] = { + { .compatible = "snps,i2s", }, + {}, +}; + +MODULE_DEVICE_TABLE(of, dw_i2s_of_match); +#endif + +/* Maximum resolution of a channel - not uniformly spaced */ +static const u32 fifo_width [] = { + 12, 16, 20, 24, 32, 0, 0, 0 +}; + +/* Width of (DMA) bus */ +static const u32 bus_widths [] = { + DMA_SLAVE_BUSWIDTH_1_BYTE, + DMA_SLAVE_BUSWIDTH_2_BYTES, + DMA_SLAVE_BUSWIDTH_4_BYTES, + DMA_SLAVE_BUSWIDTH_UNDEFINED +}; + +/* PCM format to support channel resolution */ +static const u32 formats [] = { + SNDRV_PCM_FMTBIT_S16_LE, + SNDRV_PCM_FMTBIT_S16_LE, + SNDRV_PCM_FMTBIT_S24_LE, + SNDRV_PCM_FMTBIT_S24_LE, + SNDRV_PCM_FMTBIT_S32_LE, + 0, + 0, + 0 +}; + +/* Find the DMA channel ID allocated for playback or record */ +static int find_dma_channel(struct platform_device *pdev, const char *name, + u32 *channel) +{ + int ret; + struct of_phandle_args dma_spec; + + ret = of_property_match_string(pdev->dev.of_node, "dma-names", name); + if (ret < 0) + return ret; + + ret = of_parse_phandle_with_args(pdev->dev.of_node, + "dmas", "#dma-cells", ret, + &dma_spec); + if (ret < 0) + return ret; + + *channel = dma_spec.args[0]; + return 0; +} + static int dw_i2s_probe(struct platform_device *pdev) { const struct i2s_platform_data *pdata = pdev->dev.platform_data; @@ -347,101 +445,168 @@ static int dw_i2s_probe(struct platform_device *pdev) unsigned int cap; struct snd_soc_dai_driver *dw_i2s_dai; - if (!pdata) { - dev_err(&pdev->dev, "Invalid platform data\n"); - return -EINVAL; + dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); + if (!dev) { + dev_warn(&pdev->dev, "kzalloc fail\n"); + return -ENOMEM; } + dw_i2s_dai = devm_kzalloc(&pdev->dev, sizeof(*dw_i2s_dai), GFP_KERNEL); + if (!dw_i2s_dai) { + dev_err(&pdev->dev, "mem allocation failed for dai driver\n"); + return -ENOMEM; + } + + dw_i2s_dai->ops = &dw_i2s_dai_ops; + dw_i2s_dai->suspend = dw_i2s_suspend; + dw_i2s_dai->resume = dw_i2s_resume; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(&pdev->dev, "no i2s resource defined\n"); return -ENODEV; } - if (!devm_request_mem_region(&pdev->dev, res->start, - resource_size(res), pdev->name)) { - dev_err(&pdev->dev, "i2s region already claimed\n"); - return -EBUSY; - } - - dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); - if (!dev) { - dev_warn(&pdev->dev, "kzalloc fail\n"); - return -ENOMEM; - } - - dev->i2s_base = devm_ioremap(&pdev->dev, res->start, - resource_size(res)); - if (!dev->i2s_base) { + dev->i2s_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(dev->i2s_base)) { dev_err(&pdev->dev, "ioremap fail for i2s_region\n"); - return -ENOMEM; + return PTR_ERR(dev->i2s_base); } - cap = pdata->cap; - dev->capability = cap; - dev->i2s_clk_cfg = pdata->i2s_clk_cfg; + if (pdata) { + dev->using_pd = true; + cap = pdata->cap; + dev->capability = cap; + dev->i2s_clk_cfg = pdata->i2s_clk_cfg; + if (!dev->i2s_clk_cfg) { + dev_err(&pdev->dev, "no clock device\n"); + return -ENODEV; + } - /* Set DMA slaves info */ + /* Set DMA slaves info */ + + dev->play_dma_data.pd.data = pdata->play_dma_data; + dev->capture_dma_data.pd.data = pdata->capture_dma_data; + dev->play_dma_data.pd.addr = res->start + I2S_TXDMA; + dev->capture_dma_data.pd.addr = res->start + I2S_RXDMA; + dev->play_dma_data.pd.max_burst = 16; + dev->capture_dma_data.pd.max_burst = 16; + dev->play_dma_data.pd.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; + dev->capture_dma_data.pd.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; + dev->play_dma_data.pd.filter = pdata->filter; + dev->capture_dma_data.pd.filter = pdata->filter; + + dev->clk = clk_get(&pdev->dev, NULL); + if (IS_ERR(dev->clk)) + return PTR_ERR(dev->clk); + + if (cap & DWC_I2S_PLAY) { + dev_dbg(&pdev->dev, " designware: play supported\n"); + dw_i2s_dai->playback.channels_min = MIN_CHANNEL_NUM; + dw_i2s_dai->playback.channels_max = pdata->channel; + dw_i2s_dai->playback.formats = pdata->snd_fmts; + dw_i2s_dai->playback.rates = pdata->snd_rates; + } - dev->play_dma_data.data = pdata->play_dma_data; - dev->capture_dma_data.data = pdata->capture_dma_data; - dev->play_dma_data.addr = res->start + I2S_TXDMA; - dev->capture_dma_data.addr = res->start + I2S_RXDMA; - dev->play_dma_data.max_burst = 16; - dev->capture_dma_data.max_burst = 16; - dev->play_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; - dev->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; - dev->play_dma_data.filter = pdata->filter; - dev->capture_dma_data.filter = pdata->filter; + if (cap & DWC_I2S_RECORD) { + dev_dbg(&pdev->dev, "designware: record supported\n"); + dw_i2s_dai->capture.channels_min = MIN_CHANNEL_NUM; + dw_i2s_dai->capture.channels_max = pdata->channel; + dw_i2s_dai->capture.formats = pdata->snd_fmts; + dw_i2s_dai->capture.rates = pdata->snd_rates; + } + } else { + /* Read component parameter registers to extract + * the I2S block's configuration. + */ + u32 comp1 = i2s_read_reg(dev->i2s_base, I2S_COMP_PARAM_1); + u32 comp2 = i2s_read_reg(dev->i2s_base, I2S_COMP_PARAM_2); + u32 bus_width = bus_widths [COMP1_APB_DATA_WIDTH(comp1)]; + u32 fifo_depth = 1 << (1 + COMP1_FIFO_DEPTH_GLOBAL(comp1)); + u32 max_size; + u32 slave_id; + + dev->using_pd = false; + + dev->clk = devm_clk_get(&pdev->dev, "i2sclk"); + if (IS_ERR(dev->clk)) + return PTR_ERR(dev->clk); + + /* Code presumes all channels are configured with the same + * word size. + */ + if (COMP1_TX_ENABLED(comp1)) { + dev_dbg(&pdev->dev, "playback capable\n"); + + ret = find_dma_channel(pdev, "tx", &slave_id); + if (ret < 0) + return ret; + dev->capability |= DWC_I2S_PLAY; + max_size = COMP1_TX_WORDSIZE_0(comp1); + dev->play_dma_data.dt.addr = res->start + I2S_TXDMA; + dev->play_dma_data.dt.addr_width = bus_width; + dev->play_dma_data.dt.chan_name = "TX"; + dev->play_dma_data.dt.fifo_size = fifo_depth * + (fifo_width[max_size]) >> 8; + dev->play_dma_data.dt.maxburst = 16; + dev->play_dma_data.dt.slave_id = slave_id; + dw_i2s_dai->playback.channels_min = MIN_CHANNEL_NUM; + dw_i2s_dai->playback.channels_max = + 1 << (COMP1_TX_CHANNELS(comp1) + 1); + dw_i2s_dai->playback.formats = formats[max_size]; + dw_i2s_dai->playback.rates = SNDRV_PCM_RATE_8000_192000; + } + if (COMP1_RX_ENABLED(comp1)) { + dev_dbg(&pdev->dev, "record capable\n"); + + ret = find_dma_channel(pdev, "rx", &slave_id); + if (ret < 0) + return ret; + dev->capability |= DWC_I2S_RECORD; + max_size = COMP2_RX_WORDSIZE_0(comp2); + dev->capture_dma_data.dt.addr = res->start + I2S_RXDMA; + dev->capture_dma_data.dt.addr_width = bus_width; + dev->capture_dma_data.dt.chan_name = "RX"; + dev->capture_dma_data.dt.fifo_size = fifo_depth * + (fifo_width[max_size] >> 8); + dev->capture_dma_data.dt.maxburst = 16; + dev->capture_dma_data.dt.slave_id = slave_id; + dw_i2s_dai->capture.channels_min = MIN_CHANNEL_NUM; + dw_i2s_dai->capture.channels_max = + 1 << (COMP1_RX_CHANNELS(comp1) + 1); + dw_i2s_dai->capture.formats = formats[max_size]; + dw_i2s_dai->capture.rates = SNDRV_PCM_RATE_8000_192000; + } + } - dev->clk = clk_get(&pdev->dev, NULL); - if (IS_ERR(dev->clk)) - return PTR_ERR(dev->clk); + ret = clk_prepare(dev->clk); + if (ret < 0) + goto err_clk_put; ret = clk_enable(dev->clk); if (ret < 0) goto err_clk_put; - dw_i2s_dai = devm_kzalloc(&pdev->dev, sizeof(*dw_i2s_dai), GFP_KERNEL); - if (!dw_i2s_dai) { - dev_err(&pdev->dev, "mem allocation failed for dai driver\n"); - ret = -ENOMEM; - goto err_clk_disable; - } - - if (cap & DWC_I2S_PLAY) { - dev_dbg(&pdev->dev, " SPEAr: play supported\n"); - dw_i2s_dai->playback.channels_min = MIN_CHANNEL_NUM; - dw_i2s_dai->playback.channels_max = pdata->channel; - dw_i2s_dai->playback.formats = pdata->snd_fmts; - dw_i2s_dai->playback.rates = pdata->snd_rates; - } - - if (cap & DWC_I2S_RECORD) { - dev_dbg(&pdev->dev, "SPEAr: record supported\n"); - dw_i2s_dai->capture.channels_min = MIN_CHANNEL_NUM; - dw_i2s_dai->capture.channels_max = pdata->channel; - dw_i2s_dai->capture.formats = pdata->snd_fmts; - dw_i2s_dai->capture.rates = pdata->snd_rates; - } - - dw_i2s_dai->ops = &dw_i2s_dai_ops; - dw_i2s_dai->suspend = dw_i2s_suspend; - dw_i2s_dai->resume = dw_i2s_resume; - dev->dev = &pdev->dev; dev_set_drvdata(&pdev->dev, dev); ret = snd_soc_register_component(&pdev->dev, &dw_i2s_component, dw_i2s_dai, 1); if (ret != 0) { dev_err(&pdev->dev, "not able to register dai\n"); - goto err_set_drvdata; + goto err_clk_disable; + } + + if (!dev->using_pd) { + ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0); + if (ret) { + dev_err(&pdev->dev, + "Could not register PCM: %d\n", ret); + return ret; + } } return 0; -err_set_drvdata: - dev_set_drvdata(&pdev->dev, NULL); err_clk_disable: clk_disable(dev->clk); err_clk_put: @@ -454,7 +619,6 @@ static int dw_i2s_remove(struct platform_device *pdev) struct dw_i2s_dev *dev = dev_get_drvdata(&pdev->dev); snd_soc_unregister_component(&pdev->dev); - dev_set_drvdata(&pdev->dev, NULL); clk_put(dev->clk); @@ -467,6 +631,9 @@ static struct platform_driver dw_i2s_driver = { .driver = { .name = "designware-i2s", .owner = THIS_MODULE, +#ifdef CONFIG_OF + .of_match_table = dw_i2s_of_match, +#endif }, }; diff --git a/sound/soc/fsl/imx-pcm-dma.c b/sound/soc/fsl/imx-pcm-dma.c index c246fb514930..9e410ecab613 100644 --- a/sound/soc/fsl/imx-pcm-dma.c +++ b/sound/soc/fsl/imx-pcm-dma.c @@ -24,12 +24,10 @@ 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 = dma_data->filter_data; + chan->private = param; return true; } diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index 6cf8355a8542..b193265cf47a 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -8,34 +8,47 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ - -#include <linux/platform_device.h> +#include <linux/clk.h> #include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/string.h> #include <sound/simple_card.h> -#define asoc_simple_get_card_info(p) \ - container_of(p->dai_link, struct asoc_simple_card_info, snd_link) - static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai, struct asoc_simple_dai *set, unsigned int daifmt) { - int ret = 0; + int ret; daifmt |= set->fmt; - if (!ret && daifmt) + if (daifmt) { ret = snd_soc_dai_set_fmt(dai, daifmt); + if (ret && ret != -ENOTSUPP) { + dev_err(dai->dev, "simple-card: set_fmt error\n"); + goto err; + } + } - if (!ret && set->sysclk) + if (set->sysclk) { ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0); + if (ret && ret != -ENOTSUPP) { + dev_err(dai->dev, "simple-card: set_sysclk error\n"); + goto err; + } + } + + ret = 0; +err: return ret; } static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd) { - struct asoc_simple_card_info *info = asoc_simple_get_card_info(rtd); + struct asoc_simple_card_info *info = + snd_soc_card_get_drvdata(rtd->card); struct snd_soc_dai *codec = rtd->codec_dai; struct snd_soc_dai *cpu = rtd->cpu_dai; unsigned int daifmt = info->daifmt; @@ -52,22 +65,182 @@ static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd) return 0; } +static int +asoc_simple_card_sub_parse_of(struct device_node *np, + struct asoc_simple_dai *dai, + struct device_node **node) +{ + struct clk *clk; + int ret; + + /* + * get node via "sound-dai = <&phandle port>" + * it will be used as xxx_of_node on soc_bind_dai_link() + */ + *node = of_parse_phandle(np, "sound-dai", 0); + if (!*node) + return -ENODEV; + + /* get dai->name */ + ret = snd_soc_of_get_dai_name(np, &dai->name); + if (ret < 0) + goto parse_error; + + /* + * bitclock-inversion, frame-inversion + * bitclock-master, frame-master + * and specific "format" if it has + */ + dai->fmt = snd_soc_of_parse_daifmt(np, NULL); + + /* + * dai->sysclk come from + * "clocks = <&xxx>" (if system has common clock) + * or "system-clock-frequency = <xxx>" + * or device's module clock. + */ + if (of_property_read_bool(np, "clocks")) { + clk = of_clk_get(np, 0); + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); + goto parse_error; + } + + dai->sysclk = clk_get_rate(clk); + } else if (of_property_read_bool(np, "system-clock-frequency")) { + of_property_read_u32(np, + "system-clock-frequency", + &dai->sysclk); + } else { + clk = of_clk_get(*node, 0); + if (!IS_ERR(clk)) + dai->sysclk = clk_get_rate(clk); + } + + ret = 0; + +parse_error: + of_node_put(*node); + + return ret; +} + +static int asoc_simple_card_parse_of(struct device_node *node, + struct asoc_simple_card_info *info, + struct device *dev, + struct device_node **of_cpu, + struct device_node **of_codec, + struct device_node **of_platform) +{ + struct device_node *np; + char *name; + int ret; + + /* get CPU/CODEC common format via simple-audio-card,format */ + info->daifmt = snd_soc_of_parse_daifmt(node, "simple-audio-card,") & + (SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK); + + /* DAPM routes */ + if (of_property_read_bool(node, "simple-audio-card,routing")) { + ret = snd_soc_of_parse_audio_routing(&info->snd_card, + "simple-audio-card,routing"); + if (ret) + return ret; + } + + /* CPU sub-node */ + ret = -EINVAL; + np = of_get_child_by_name(node, "simple-audio-card,cpu"); + if (np) + ret = asoc_simple_card_sub_parse_of(np, + &info->cpu_dai, + of_cpu); + if (ret < 0) + return ret; + + /* CODEC sub-node */ + ret = -EINVAL; + np = of_get_child_by_name(node, "simple-audio-card,codec"); + if (np) + ret = asoc_simple_card_sub_parse_of(np, + &info->codec_dai, + of_codec); + if (ret < 0) + return ret; + + if (!info->cpu_dai.name || !info->codec_dai.name) + return -EINVAL; + + /* card name is created from CPU/CODEC dai name */ + name = devm_kzalloc(dev, + strlen(info->cpu_dai.name) + + strlen(info->codec_dai.name) + 2, + GFP_KERNEL); + sprintf(name, "%s-%s", info->cpu_dai.name, info->codec_dai.name); + info->name = info->card = name; + + /* simple-card assumes platform == cpu */ + *of_platform = *of_cpu; + + dev_dbg(dev, "card-name : %s\n", info->card); + dev_dbg(dev, "platform : %04x\n", info->daifmt); + dev_dbg(dev, "cpu : %s / %04x / %d\n", + info->cpu_dai.name, + info->cpu_dai.fmt, + info->cpu_dai.sysclk); + dev_dbg(dev, "codec : %s / %04x / %d\n", + info->codec_dai.name, + info->codec_dai.fmt, + info->codec_dai.sysclk); + + return 0; +} + static int asoc_simple_card_probe(struct platform_device *pdev) { - struct asoc_simple_card_info *cinfo = pdev->dev.platform_data; + struct asoc_simple_card_info *cinfo; + struct device_node *np = pdev->dev.of_node; + struct device_node *of_cpu, *of_codec, *of_platform; struct device *dev = &pdev->dev; + int ret; - if (!cinfo) { - dev_err(dev, "no info for asoc-simple-card\n"); - return -EINVAL; + cinfo = NULL; + of_cpu = NULL; + of_codec = NULL; + of_platform = NULL; + + cinfo = devm_kzalloc(dev, sizeof(*cinfo), GFP_KERNEL); + if (!cinfo) + return -ENOMEM; + + if (np && of_device_is_available(np)) { + cinfo->snd_card.dev = dev; + + ret = asoc_simple_card_parse_of(np, cinfo, dev, + &of_cpu, + &of_codec, + &of_platform); + if (ret < 0) { + if (ret != -EPROBE_DEFER) + dev_err(dev, "parse error %d\n", ret); + return ret; + } + } else { + if (!dev->platform_data) { + dev_err(dev, "no info for asoc-simple-card\n"); + return -EINVAL; + } + + memcpy(cinfo, dev->platform_data, sizeof(*cinfo)); + cinfo->snd_card.dev = dev; } if (!cinfo->name || !cinfo->card || - !cinfo->codec || - !cinfo->platform || - !cinfo->cpu_dai.name || - !cinfo->codec_dai.name) { + !cinfo->codec_dai.name || + !(cinfo->codec || of_codec) || + !(cinfo->platform || of_platform) || + !(cinfo->cpu_dai.name || of_cpu)) { dev_err(dev, "insufficient asoc_simple_card_info settings\n"); return -EINVAL; } @@ -81,6 +254,9 @@ static int asoc_simple_card_probe(struct platform_device *pdev) cinfo->snd_link.platform_name = cinfo->platform; cinfo->snd_link.codec_name = cinfo->codec; cinfo->snd_link.codec_dai_name = cinfo->codec_dai.name; + cinfo->snd_link.cpu_of_node = of_cpu; + cinfo->snd_link.codec_of_node = of_codec; + cinfo->snd_link.platform_of_node = of_platform; cinfo->snd_link.init = asoc_simple_card_dai_init; /* @@ -90,28 +266,30 @@ static int asoc_simple_card_probe(struct platform_device *pdev) cinfo->snd_card.owner = THIS_MODULE; cinfo->snd_card.dai_link = &cinfo->snd_link; cinfo->snd_card.num_links = 1; - cinfo->snd_card.dev = &pdev->dev; - return snd_soc_register_card(&cinfo->snd_card); -} + snd_soc_card_set_drvdata(&cinfo->snd_card, cinfo); -static int asoc_simple_card_remove(struct platform_device *pdev) -{ - struct asoc_simple_card_info *cinfo = pdev->dev.platform_data; - - return snd_soc_unregister_card(&cinfo->snd_card); + return devm_snd_soc_register_card(&pdev->dev, &cinfo->snd_card); } +static const struct of_device_id asoc_simple_of_match[] = { + { .compatible = "simple-audio-card", }, + {}, +}; +MODULE_DEVICE_TABLE(of, asoc_simple_of_match); + static struct platform_driver asoc_simple_card = { .driver = { .name = "asoc-simple-card", + .owner = THIS_MODULE, + .of_match_table = asoc_simple_of_match, }, .probe = asoc_simple_card_probe, - .remove = asoc_simple_card_remove, }; module_platform_driver(asoc_simple_card); +MODULE_ALIAS("platform:asoc-simple-card"); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("ASoC Simple Sound Card"); MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); diff --git a/sound/soc/omap/omap-hdmi-card.c b/sound/soc/omap/omap-hdmi-card.c index d4eaa92e518e..7e66e9cba5a8 100644 --- a/sound/soc/omap/omap-hdmi-card.c +++ b/sound/soc/omap/omap-hdmi-card.c @@ -35,7 +35,7 @@ static struct snd_soc_dai_link omap_hdmi_dai = { .cpu_dai_name = "omap-hdmi-audio-dai", .platform_name = "omap-pcm-audio", .codec_name = "hdmi-audio-codec", - .codec_dai_name = "omap-hdmi-hifi", + .codec_dai_name = "hdmi-hifi", }; static struct snd_soc_card snd_soc_omap_hdmi = { diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index d56bbea6e75e..1f0f4a7c5657 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3372,7 +3372,7 @@ int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, freq, dir); else - return -EINVAL; + return -ENOTSUPP; } EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); @@ -3393,7 +3393,7 @@ int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, return codec->driver->set_sysclk(codec, clk_id, source, freq, dir); else - return -EINVAL; + return -ENOTSUPP; } EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); @@ -3900,6 +3900,113 @@ static void snd_soc_unregister_dais(struct device *dev, size_t count) } /** + * snd_soc_register_component - Register a component with the ASoC core + * + */ +static int +__snd_soc_register_component(struct device *dev, + struct snd_soc_component *cmpnt, + const struct snd_soc_component_driver *cmpnt_drv, + struct snd_soc_dai_driver *dai_drv, + int num_dai, bool allow_single_dai) +{ + int ret; + + dev_dbg(dev, "component register %s\n", dev_name(dev)); + + if (!cmpnt) { + dev_err(dev, "ASoC: Failed to connecting component\n"); + return -ENOMEM; + } + + cmpnt->name = fmt_single_name(dev, &cmpnt->id); + if (!cmpnt->name) { + dev_err(dev, "ASoC: Failed to simplifying name\n"); + return -ENOMEM; + } + + cmpnt->dev = dev; + cmpnt->driver = cmpnt_drv; + cmpnt->dai_drv = dai_drv; + cmpnt->num_dai = num_dai; + + /* + * snd_soc_register_dai() uses fmt_single_name(), and + * snd_soc_register_dais() uses fmt_multiple_name() + * for dai->name which is used for name based matching + * + * this function is used from cpu/codec. + * allow_single_dai flag can ignore "codec" driver reworking + * since it had been used snd_soc_register_dais(), + */ + if ((1 == num_dai) && allow_single_dai) + ret = snd_soc_register_dai(dev, dai_drv); + else + ret = snd_soc_register_dais(dev, dai_drv, num_dai); + if (ret < 0) { + dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret); + goto error_component_name; + } + + mutex_lock(&client_mutex); + list_add(&cmpnt->list, &component_list); + mutex_unlock(&client_mutex); + + dev_dbg(cmpnt->dev, "ASoC: Registered component '%s'\n", cmpnt->name); + + return ret; + +error_component_name: + kfree(cmpnt->name); + + return ret; +} + +int snd_soc_register_component(struct device *dev, + const struct snd_soc_component_driver *cmpnt_drv, + struct snd_soc_dai_driver *dai_drv, + int num_dai) +{ + struct snd_soc_component *cmpnt; + + cmpnt = devm_kzalloc(dev, sizeof(*cmpnt), GFP_KERNEL); + if (!cmpnt) { + dev_err(dev, "ASoC: Failed to allocate memory\n"); + return -ENOMEM; + } + + return __snd_soc_register_component(dev, cmpnt, cmpnt_drv, + dai_drv, num_dai, true); +} +EXPORT_SYMBOL_GPL(snd_soc_register_component); + +/** + * snd_soc_unregister_component - Unregister a component from the ASoC core + * + */ +void snd_soc_unregister_component(struct device *dev) +{ + struct snd_soc_component *cmpnt; + + list_for_each_entry(cmpnt, &component_list, list) { + if (dev == cmpnt->dev) + goto found; + } + return; + +found: + snd_soc_unregister_dais(dev, cmpnt->num_dai); + + mutex_lock(&client_mutex); + list_del(&cmpnt->list); + mutex_unlock(&client_mutex); + + dev_dbg(dev, "ASoC: Unregistered component '%s'\n", cmpnt->name); + kfree(cmpnt->name); +} +EXPORT_SYMBOL_GPL(snd_soc_unregister_component); + +/** * snd_soc_add_platform - Add a platform to the ASoC core * @dev: The parent device for the platform * @platform: The platform to add @@ -4123,10 +4230,12 @@ int snd_soc_register_codec(struct device *dev, list_add(&codec->list, &codec_list); mutex_unlock(&client_mutex); - /* register any DAIs */ - ret = snd_soc_register_dais(dev, dai_drv, num_dai); + /* register component */ + ret = __snd_soc_register_component(dev, &codec->component, + &codec_drv->component_driver, + dai_drv, num_dai, false); if (ret < 0) { - dev_err(codec->dev, "ASoC: Failed to regster DAIs: %d\n", ret); + dev_err(codec->dev, "ASoC: Failed to regster component: %d\n", ret); goto fail_codec_name; } @@ -4161,7 +4270,7 @@ void snd_soc_unregister_codec(struct device *dev) return; found: - snd_soc_unregister_dais(dev, codec->num_dai); + snd_soc_unregister_component(dev); mutex_lock(&client_mutex); list_del(&codec->list); @@ -4176,92 +4285,6 @@ found: } EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); - -/** - * snd_soc_register_component - Register a component with the ASoC core - * - */ -int snd_soc_register_component(struct device *dev, - const struct snd_soc_component_driver *cmpnt_drv, - struct snd_soc_dai_driver *dai_drv, - int num_dai) -{ - struct snd_soc_component *cmpnt; - int ret; - - dev_dbg(dev, "component register %s\n", dev_name(dev)); - - cmpnt = devm_kzalloc(dev, sizeof(*cmpnt), GFP_KERNEL); - if (!cmpnt) { - dev_err(dev, "ASoC: Failed to allocate memory\n"); - return -ENOMEM; - } - - cmpnt->name = fmt_single_name(dev, &cmpnt->id); - if (!cmpnt->name) { - dev_err(dev, "ASoC: Failed to simplifying name\n"); - return -ENOMEM; - } - - cmpnt->dev = dev; - cmpnt->driver = cmpnt_drv; - cmpnt->num_dai = num_dai; - - /* - * snd_soc_register_dai() uses fmt_single_name(), and - * snd_soc_register_dais() uses fmt_multiple_name() - * for dai->name which is used for name based matching - */ - if (1 == num_dai) - ret = snd_soc_register_dai(dev, dai_drv); - else - ret = snd_soc_register_dais(dev, dai_drv, num_dai); - if (ret < 0) { - dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret); - goto error_component_name; - } - - mutex_lock(&client_mutex); - list_add(&cmpnt->list, &component_list); - mutex_unlock(&client_mutex); - - dev_dbg(cmpnt->dev, "ASoC: Registered component '%s'\n", cmpnt->name); - - return ret; - -error_component_name: - kfree(cmpnt->name); - - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_register_component); - -/** - * snd_soc_unregister_component - Unregister a component from the ASoC core - * - */ -void snd_soc_unregister_component(struct device *dev) -{ - struct snd_soc_component *cmpnt; - - list_for_each_entry(cmpnt, &component_list, list) { - if (dev == cmpnt->dev) - goto found; - } - return; - -found: - snd_soc_unregister_dais(dev, cmpnt->num_dai); - - mutex_lock(&client_mutex); - list_del(&cmpnt->list); - mutex_unlock(&client_mutex); - - dev_dbg(dev, "ASoC: Unregistered component '%s'\n", cmpnt->name); - kfree(cmpnt->name); -} -EXPORT_SYMBOL_GPL(snd_soc_unregister_component); - /* Retrieve a card's name from device tree */ int snd_soc_of_parse_card_name(struct snd_soc_card *card, const char *propname) @@ -4448,6 +4471,64 @@ unsigned int snd_soc_of_parse_daifmt(struct device_node *np, } EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); +int snd_soc_of_get_dai_name(struct device_node *of_node, + const char **dai_name) +{ + struct snd_soc_component *pos; + struct of_phandle_args args; + int ret; + + ret = of_parse_phandle_with_args(of_node, "sound-dai", + "#sound-dai-cells", 0, &args); + if (ret) + return ret; + + ret = -EPROBE_DEFER; + + mutex_lock(&client_mutex); + list_for_each_entry(pos, &component_list, list) { + if (pos->dev->of_node != args.np) + continue; + + if (pos->driver->of_xlate_dai_name) { + ret = pos->driver->of_xlate_dai_name(pos, &args, dai_name); + } else { + int id = -1; + + switch (args.args_count) { + case 0: + id = 0; /* same as dai_drv[0] */ + break; + case 1: + id = args.args[0]; + break; + default: + /* not supported */ + break; + } + + if (id < 0 || id >= pos->num_dai) { + ret = -EINVAL; + break; + } + + ret = 0; + + *dai_name = pos->dai_drv[id].name; + if (!*dai_name) + *dai_name = pos->name; + } + + break; + } + mutex_unlock(&client_mutex); + + of_node_put(args.np); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); + static int __init snd_soc_init(void) { #ifdef CONFIG_DEBUG_FS diff --git a/sound/soc/soc-devres.c b/sound/soc/soc-devres.c new file mode 100644 index 000000000000..999861942d28 --- /dev/null +++ b/sound/soc/soc-devres.c @@ -0,0 +1,127 @@ +/* + * soc-devres.c -- ALSA SoC Audio Layer devres functions + * + * Copyright (C) 2013 Linaro Ltd + * + * 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. + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <sound/soc.h> +#include <sound/dmaengine_pcm.h> + +static void devm_component_release(struct device *dev, void *res) +{ + snd_soc_unregister_component(*(struct device **)res); +} + +/** + * devm_snd_soc_register_component - resource managed component registration + * @dev: Device used to manage component + * @cmpnt_drv: Component driver + * @dai_drv: DAI driver + * @num_dai: Number of DAIs to register + * + * Register a component with automatic unregistration when the device is + * unregistered. + */ +int devm_snd_soc_register_component(struct device *dev, + const struct snd_soc_component_driver *cmpnt_drv, + struct snd_soc_dai_driver *dai_drv, int num_dai) +{ + struct device **ptr; + int ret; + + ptr = devres_alloc(devm_component_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return -ENOMEM; + + ret = snd_soc_register_component(dev, cmpnt_drv, dai_drv, num_dai); + if (ret == 0) { + *ptr = dev; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return ret; +} +EXPORT_SYMBOL_GPL(devm_snd_soc_register_component); + +static void devm_card_release(struct device *dev, void *res) +{ + snd_soc_unregister_card(*(struct snd_soc_card **)res); +} + +/** + * devm_snd_soc_register_card - resource managed card registration + * @dev: Device used to manage card + * @card: Card to register + * + * Register a card with automatic unregistration when the device is + * unregistered. + */ +int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card) +{ + struct device **ptr; + int ret; + + ptr = devres_alloc(devm_card_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return -ENOMEM; + + ret = snd_soc_register_card(card); + if (ret == 0) { + *ptr = dev; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return ret; +} +EXPORT_SYMBOL_GPL(devm_snd_soc_register_card); + +#ifdef CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM + +static void devm_dmaengine_pcm_release(struct device *dev, void *res) +{ + snd_dmaengine_pcm_unregister(*(struct device **)res); +} + +/** + * devm_snd_dmaengine_pcm_register - resource managed dmaengine PCM registration + * @dev: The parent device for the PCM device + * @config: Platform specific PCM configuration + * @flags: Platform specific quirks + * + * Register a dmaengine based PCM device with automatic unregistration when the + * device is unregistered. + */ +int devm_snd_dmaengine_pcm_register(struct device *dev, + const struct snd_dmaengine_pcm_config *config, unsigned int flags) +{ + struct device **ptr; + int ret; + + ptr = devres_alloc(devm_dmaengine_pcm_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return -ENOMEM; + + ret = snd_dmaengine_pcm_register(dev, config, flags); + if (ret == 0) { + *ptr = dev; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return ret; +} +EXPORT_SYMBOL_GPL(devm_snd_dmaengine_pcm_register); + +#endif diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c index e29ec3cd84b1..36f6f1b67fab 100644 --- a/sound/soc/soc-generic-dmaengine-pcm.c +++ b/sound/soc/soc-generic-dmaengine-pcm.c @@ -36,6 +36,15 @@ static struct dmaengine_pcm *soc_platform_to_pcm(struct snd_soc_platform *p) return container_of(p, struct dmaengine_pcm, platform); } +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; +} + /** * snd_dmaengine_pcm_prepare_slave_config() - Generic prepare_slave_config callback * @substream: PCM substream @@ -75,12 +84,19 @@ static int dmaengine_pcm_hw_params(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 = snd_dmaengine_pcm_get_chan(substream); + int (*prepare_slave_config)(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct dma_slave_config *slave_config); 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 (!pcm->config) + prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config; + else + prepare_slave_config = pcm->config->prepare_slave_config; + + if (prepare_slave_config) { + ret = prepare_slave_config(substream, params, &slave_config); if (ret) return ret; @@ -92,28 +108,56 @@ static int dmaengine_pcm_hw_params(struct snd_pcm_substream *substream, return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); } -static int dmaengine_pcm_open(struct snd_pcm_substream *substream) +static int dmaengine_pcm_set_runtime_hwparams(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 device *dma_dev = dmaengine_dma_dev(pcm, substream); struct dma_chan *chan = pcm->chan[substream->stream]; + struct snd_dmaengine_dai_dma_data *dma_data; + struct dma_slave_caps dma_caps; + struct snd_pcm_hardware hw; int ret; - ret = snd_soc_set_runtime_hwparams(substream, + if (pcm->config && pcm->config->pcm_hardware) + return snd_soc_set_runtime_hwparams(substream, pcm->config->pcm_hardware); - if (ret) - return ret; - return snd_dmaengine_pcm_open(substream, chan); + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + + memset(&hw, 0, sizeof(hw)); + hw.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED; + hw.periods_min = 2; + hw.periods_max = UINT_MAX; + hw.period_bytes_min = 256; + hw.period_bytes_max = dma_get_max_seg_size(dma_dev); + hw.buffer_bytes_max = SIZE_MAX; + hw.fifo_size = dma_data->fifo_size; + + ret = dma_get_slave_caps(chan, &dma_caps); + if (ret == 0) { + if (dma_caps.cmd_pause) + hw.info |= SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME; + if (dma_caps.residue_granularity <= DMA_RESIDUE_GRANULARITY_SEGMENT) + hw.info |= SNDRV_PCM_INFO_BATCH; + } + + return snd_soc_set_runtime_hwparams(substream, &hw); } -static struct device *dmaengine_dma_dev(struct dmaengine_pcm *pcm, - struct snd_pcm_substream *substream) +static int dmaengine_pcm_open(struct snd_pcm_substream *substream) { - if (!pcm->chan[substream->stream]) - return NULL; + 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; - return pcm->chan[substream->stream]->device->dev; + ret = dmaengine_pcm_set_runtime_hwparams(substream); + if (ret) + return ret; + + return snd_dmaengine_pcm_open(substream, chan); } static void dmaengine_pcm_free(struct snd_pcm *pcm) @@ -126,6 +170,9 @@ static struct dma_chan *dmaengine_pcm_compat_request_channel( struct snd_pcm_substream *substream) { struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform); + struct snd_dmaengine_dai_dma_data *dma_data; + + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) && pcm->chan[0]) return pcm->chan[0]; @@ -134,22 +181,57 @@ static struct dma_chan *dmaengine_pcm_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)); + dma_data->filter_data); +} + +static bool dmaengine_pcm_can_report_residue(struct dma_chan *chan) +{ + struct dma_slave_caps dma_caps; + int ret; + + ret = dma_get_slave_caps(chan, &dma_caps); + if (ret != 0) + return true; + + if (dma_caps.residue_granularity == DMA_RESIDUE_GRANULARITY_DESCRIPTOR) + return false; + + return true; } 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 device *dev = rtd->platform->dev; + struct snd_dmaengine_dai_dma_data *dma_data; struct snd_pcm_substream *substream; + size_t prealloc_buffer_size; + size_t max_buffer_size; unsigned int i; int ret; + if (config && config->prealloc_buffer_size) { + prealloc_buffer_size = config->prealloc_buffer_size; + max_buffer_size = config->pcm_hardware->buffer_bytes_max; + } else { + prealloc_buffer_size = 512 * 1024; + max_buffer_size = SIZE_MAX; + } + + for (i = SNDRV_PCM_STREAM_PLAYBACK; i <= SNDRV_PCM_STREAM_CAPTURE; i++) { substream = rtd->pcm->streams[i].substream; if (!substream) continue; + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + + if (!pcm->chan[i] && + (pcm->flags & SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME)) + pcm->chan[i] = dma_request_slave_channel(dev, + dma_data->chan_name); + if (!pcm->chan[i] && (pcm->flags & SND_DMAENGINE_PCM_FLAG_COMPAT)) { pcm->chan[i] = dmaengine_pcm_compat_request_channel(rtd, substream); @@ -165,10 +247,20 @@ static int dmaengine_pcm_new(struct snd_soc_pcm_runtime *rtd) 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); + prealloc_buffer_size, + max_buffer_size); if (ret) goto err_free; + + /* + * This will only return false if we know for sure that at least + * one channel does not support residue reporting. If the DMA + * driver does not implement the slave_caps API we rely having + * the NO_RESIDUE flag set manually in case residue reporting is + * not supported. + */ + if (!dmaengine_pcm_can_report_residue(pcm->chan[i])) + pcm->flags |= SND_DMAENGINE_PCM_FLAG_NO_RESIDUE; } return 0; @@ -178,6 +270,18 @@ err_free: return ret; } +static snd_pcm_uframes_t dmaengine_pcm_pointer( + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform); + + if (pcm->flags & SND_DMAENGINE_PCM_FLAG_NO_RESIDUE) + return snd_dmaengine_pcm_pointer_no_residue(substream); + else + return snd_dmaengine_pcm_pointer(substream); +} + static const struct snd_pcm_ops dmaengine_pcm_ops = { .open = dmaengine_pcm_open, .close = snd_dmaengine_pcm_close, @@ -185,7 +289,7 @@ static const struct snd_pcm_ops dmaengine_pcm_ops = { .hw_params = dmaengine_pcm_hw_params, .hw_free = snd_pcm_lib_free_pages, .trigger = snd_dmaengine_pcm_trigger, - .pointer = snd_dmaengine_pcm_pointer, + .pointer = dmaengine_pcm_pointer, }; static const struct snd_soc_platform_driver dmaengine_pcm_platform = { @@ -195,23 +299,6 @@ static const struct snd_soc_platform_driver dmaengine_pcm_platform = { .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", @@ -222,7 +309,9 @@ static void dmaengine_pcm_request_chan_of(struct dmaengine_pcm *pcm, { unsigned int i; - if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_NO_DT) || !dev->of_node) + if ((pcm->flags & (SND_DMAENGINE_PCM_FLAG_NO_DT | + SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME)) || + !dev->of_node) return; if (pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) { @@ -256,12 +345,8 @@ int snd_dmaengine_pcm_register(struct device *dev, dmaengine_pcm_request_chan_of(pcm, dev); - 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); + return snd_soc_add_platform(dev, &pcm->platform, + &dmaengine_pcm_platform); } EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_register); |