The hdmi routing mechanism used on g12a hdmi is also used: * other Amlogic SoC types * for the internal DAC path

Each of these codec glues are slightly different but the idea behind it remains the same. This change extract some helper functions from the g12a-tohdmitx driver to make them available for other Amlogic codecs.

Signed-off-by: Jerome Brunet jbrunet@baylibre.com --- sound/soc/meson/Kconfig | 4 + sound/soc/meson/Makefile | 2 + sound/soc/meson/g12a-tohdmitx.c | 219 ++++++----------------------- sound/soc/meson/meson-codec-glue.c | 149 ++++++++++++++++++++ sound/soc/meson/meson-codec-glue.h | 32 +++++ 5 files changed, 230 insertions(+), 176 deletions(-) create mode 100644 sound/soc/meson/meson-codec-glue.c create mode 100644 sound/soc/meson/meson-codec-glue.h

diff --git a/sound/soc/meson/Kconfig b/sound/soc/meson/Kconfig index 2e3676147cea..ee6d53949d45 100644 --- a/sound/soc/meson/Kconfig +++ b/sound/soc/meson/Kconfig @@ -85,9 +85,13 @@ config SND_MESON_AXG_PDM Select Y or M to add support for PDM input embedded in the Amlogic AXG SoC family

+config SND_MESON_CODEC_GLUE + tristate + config SND_MESON_G12A_TOHDMITX tristate "Amlogic G12A To HDMI TX Control Support" select REGMAP_MMIO + select SND_MESON_CODEC_GLUE imply SND_SOC_HDMI_CODEC help Select Y or M to add support for HDMI audio on the g12a SoC diff --git a/sound/soc/meson/Makefile b/sound/soc/meson/Makefile index 1a8b1470ed84..529a807b3f37 100644 --- a/sound/soc/meson/Makefile +++ b/sound/soc/meson/Makefile @@ -11,6 +11,7 @@ snd-soc-meson-axg-sound-card-objs := axg-card.o snd-soc-meson-axg-spdifin-objs := axg-spdifin.o snd-soc-meson-axg-spdifout-objs := axg-spdifout.o snd-soc-meson-axg-pdm-objs := axg-pdm.o +snd-soc-meson-codec-glue-objs := meson-codec-glue.o snd-soc-meson-g12a-tohdmitx-objs := g12a-tohdmitx.o

obj-$(CONFIG_SND_MESON_AXG_FIFO) += snd-soc-meson-axg-fifo.o @@ -24,4 +25,5 @@ obj-$(CONFIG_SND_MESON_AXG_SOUND_CARD) += snd-soc-meson-axg-sound-card.o obj-$(CONFIG_SND_MESON_AXG_SPDIFIN) += snd-soc-meson-axg-spdifin.o obj-$(CONFIG_SND_MESON_AXG_SPDIFOUT) += snd-soc-meson-axg-spdifout.o obj-$(CONFIG_SND_MESON_AXG_PDM) += snd-soc-meson-axg-pdm.o +obj-$(CONFIG_SND_MESON_CODEC_GLUE) += snd-soc-meson-codec-glue.o obj-$(CONFIG_SND_MESON_G12A_TOHDMITX) += snd-soc-meson-g12a-tohdmitx.o diff --git a/sound/soc/meson/g12a-tohdmitx.c b/sound/soc/meson/g12a-tohdmitx.c index 9cfbd343a00c..f8853f2fba08 100644 --- a/sound/soc/meson/g12a-tohdmitx.c +++ b/sound/soc/meson/g12a-tohdmitx.c @@ -12,112 +12,51 @@ #include <sound/soc-dai.h>

#include <dt-bindings/sound/meson-g12a-tohdmitx.h> +#include "meson-codec-glue.h"

#define G12A_TOHDMITX_DRV_NAME "g12a-tohdmitx"

#define TOHDMITX_CTRL0 0x0 #define CTRL0_ENABLE_SHIFT 31 -#define CTRL0_I2S_DAT_SEL GENMASK(13, 12) +#define CTRL0_I2S_DAT_SEL_SHIFT 12 +#define CTRL0_I2S_DAT_SEL (0x3 << CTRL0_I2S_DAT_SEL_SHIFT) #define CTRL0_I2S_LRCLK_SEL GENMASK(9, 8) #define CTRL0_I2S_BLK_CAP_INV BIT(7) #define CTRL0_I2S_BCLK_O_INV BIT(6) #define CTRL0_I2S_BCLK_SEL GENMASK(5, 4) #define CTRL0_SPDIF_CLK_CAP_INV BIT(3) #define CTRL0_SPDIF_CLK_O_INV BIT(2) -#define CTRL0_SPDIF_SEL BIT(1) +#define CTRL0_SPDIF_SEL_SHIFT 1 +#define CTRL0_SPDIF_SEL (0x1 << CTRL0_SPDIF_SEL_SHIFT) #define CTRL0_SPDIF_CLK_SEL BIT(0)

-struct g12a_tohdmitx_input { - struct snd_soc_pcm_stream params; - unsigned int fmt; -}; - -static struct snd_soc_dapm_widget * -g12a_tohdmitx_get_input(struct snd_soc_dapm_widget *w) -{ - struct snd_soc_dapm_path *p = NULL; - struct snd_soc_dapm_widget *in; - - snd_soc_dapm_widget_for_each_source_path(w, p) { - if (!p->connect) - continue; - - /* Check that we still are in the same component */ - if (snd_soc_dapm_to_component(w->dapm) != - snd_soc_dapm_to_component(p->source->dapm)) - continue; - - if (p->source->id == snd_soc_dapm_dai_in) - return p->source; - - in = g12a_tohdmitx_get_input(p->source); - if (in) - return in; - } - - return NULL; -} - -static struct g12a_tohdmitx_input * -g12a_tohdmitx_get_input_data(struct snd_soc_dapm_widget *w) -{ - struct snd_soc_dapm_widget *in = - g12a_tohdmitx_get_input(w); - struct snd_soc_dai *dai; - - if (WARN_ON(!in)) - return NULL; - - dai = in->priv; - - return dai->playback_dma_data; -} - static const char * const g12a_tohdmitx_i2s_mux_texts[] = { "I2S A", "I2S B", "I2S C", };

-static SOC_ENUM_SINGLE_EXT_DECL(g12a_tohdmitx_i2s_mux_enum, - g12a_tohdmitx_i2s_mux_texts); - -static int g12a_tohdmitx_get_input_val(struct snd_soc_component *component, - unsigned int mask) -{ - unsigned int val; - - snd_soc_component_read(component, TOHDMITX_CTRL0, &val); - return (val & mask) >> __ffs(mask); -} - -static int g12a_tohdmitx_i2s_mux_get_enum(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = - snd_soc_dapm_kcontrol_component(kcontrol); - - ucontrol->value.enumerated.item[0] = - g12a_tohdmitx_get_input_val(component, CTRL0_I2S_DAT_SEL); - - return 0; -} - static int g12a_tohdmitx_i2s_mux_put_enum(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) + struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol); struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned int mux = ucontrol->value.enumerated.item[0]; - unsigned int val = g12a_tohdmitx_get_input_val(component, - CTRL0_I2S_DAT_SEL); + unsigned int mux, changed; + + mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]); + changed = snd_soc_component_test_bits(component, e->reg, + CTRL0_I2S_DAT_SEL, + FIELD_PREP(CTRL0_I2S_DAT_SEL, + mux)); + + if (!changed) + return 0;

/* Force disconnect of the mux while updating */ - if (val != mux) - snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL); + snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);

- snd_soc_component_update_bits(component, TOHDMITX_CTRL0, + snd_soc_component_update_bits(component, e->reg, CTRL0_I2S_DAT_SEL | CTRL0_I2S_LRCLK_SEL | CTRL0_I2S_BCLK_SEL, @@ -130,30 +69,19 @@ static int g12a_tohdmitx_i2s_mux_put_enum(struct snd_kcontrol *kcontrol, return 0; }

+static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_i2s_mux_enum, TOHDMITX_CTRL0, + CTRL0_I2S_DAT_SEL_SHIFT, + g12a_tohdmitx_i2s_mux_texts); + static const struct snd_kcontrol_new g12a_tohdmitx_i2s_mux = SOC_DAPM_ENUM_EXT("I2S Source", g12a_tohdmitx_i2s_mux_enum, - g12a_tohdmitx_i2s_mux_get_enum, + snd_soc_dapm_get_enum_double, g12a_tohdmitx_i2s_mux_put_enum);

static const char * const g12a_tohdmitx_spdif_mux_texts[] = { "SPDIF A", "SPDIF B", };

-static SOC_ENUM_SINGLE_EXT_DECL(g12a_tohdmitx_spdif_mux_enum, - g12a_tohdmitx_spdif_mux_texts); - -static int g12a_tohdmitx_spdif_mux_get_enum(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = - snd_soc_dapm_kcontrol_component(kcontrol); - - ucontrol->value.enumerated.item[0] = - g12a_tohdmitx_get_input_val(component, CTRL0_SPDIF_SEL); - - return 0; -} - static int g12a_tohdmitx_spdif_mux_put_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { @@ -162,13 +90,18 @@ static int g12a_tohdmitx_spdif_mux_put_enum(struct snd_kcontrol *kcontrol, struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned int mux = ucontrol->value.enumerated.item[0]; - unsigned int val = g12a_tohdmitx_get_input_val(component, - CTRL0_SPDIF_SEL); + unsigned int mux, changed; + + mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]); + changed = snd_soc_component_test_bits(component, TOHDMITX_CTRL0, + CTRL0_SPDIF_SEL, + FIELD_PREP(CTRL0_SPDIF_SEL, mux)); + + if (!changed) + return 0;

/* Force disconnect of the mux while updating */ - if (val != mux) - snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL); + snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);

snd_soc_component_update_bits(component, TOHDMITX_CTRL0, CTRL0_SPDIF_SEL | @@ -181,9 +114,13 @@ static int g12a_tohdmitx_spdif_mux_put_enum(struct snd_kcontrol *kcontrol, return 0; }

+static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_spdif_mux_enum, TOHDMITX_CTRL0, + CTRL0_SPDIF_SEL_SHIFT, + g12a_tohdmitx_spdif_mux_texts); + static const struct snd_kcontrol_new g12a_tohdmitx_spdif_mux = SOC_DAPM_ENUM_EXT("SPDIF Source", g12a_tohdmitx_spdif_mux_enum, - g12a_tohdmitx_spdif_mux_get_enum, + snd_soc_dapm_get_enum_double, g12a_tohdmitx_spdif_mux_put_enum);

static const struct snd_kcontrol_new g12a_tohdmitx_out_enable = @@ -201,83 +138,13 @@ static const struct snd_soc_dapm_widget g12a_tohdmitx_widgets[] = { &g12a_tohdmitx_out_enable), };

-static int g12a_tohdmitx_input_probe(struct snd_soc_dai *dai) -{ - struct g12a_tohdmitx_input *data; - - data = kzalloc(sizeof(*data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - dai->playback_dma_data = data; - return 0; -} - -static int g12a_tohdmitx_input_remove(struct snd_soc_dai *dai) -{ - kfree(dai->playback_dma_data); - return 0; -} - -static int g12a_tohdmitx_input_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct g12a_tohdmitx_input *data = dai->playback_dma_data; - - data->params.rates = snd_pcm_rate_to_rate_bit(params_rate(params)); - data->params.rate_min = params_rate(params); - data->params.rate_max = params_rate(params); - data->params.formats = 1 << params_format(params); - data->params.channels_min = params_channels(params); - data->params.channels_max = params_channels(params); - data->params.sig_bits = dai->driver->playback.sig_bits; - - return 0; -} - - -static int g12a_tohdmitx_input_set_fmt(struct snd_soc_dai *dai, - unsigned int fmt) -{ - struct g12a_tohdmitx_input *data = dai->playback_dma_data; - - /* Save the source stream format for the downstream link */ - data->fmt = fmt; - return 0; -} - -static int g12a_tohdmitx_output_startup(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct g12a_tohdmitx_input *in_data = - g12a_tohdmitx_get_input_data(dai->capture_widget); - - if (!in_data) - return -ENODEV; - - if (WARN_ON(!rtd->dai_link->params)) { - dev_warn(dai->dev, "codec2codec link expected\n"); - return -EINVAL; - } - - /* Replace link params with the input params */ - rtd->dai_link->params = &in_data->params; - - if (!in_data->fmt) - return 0; - - return snd_soc_runtime_set_dai_fmt(rtd, in_data->fmt); -} - static const struct snd_soc_dai_ops g12a_tohdmitx_input_ops = { - .hw_params = g12a_tohdmitx_input_hw_params, - .set_fmt = g12a_tohdmitx_input_set_fmt, + .hw_params = meson_codec_glue_input_hw_params, + .set_fmt = meson_codec_glue_input_set_fmt, };

static const struct snd_soc_dai_ops g12a_tohdmitx_output_ops = { - .startup = g12a_tohdmitx_output_startup, + .startup = meson_codec_glue_output_startup, };

#define TOHDMITX_SPDIF_FORMATS \ @@ -304,8 +171,8 @@ static const struct snd_soc_dai_ops g12a_tohdmitx_output_ops = { .id = (xid), \ .playback = TOHDMITX_STREAM(xname, "Playback", xfmt, xchmax), \ .ops = &g12a_tohdmitx_input_ops, \ - .probe = g12a_tohdmitx_input_probe, \ - .remove = g12a_tohdmitx_input_remove, \ + .probe = meson_codec_glue_input_dai_probe, \ + .remove = meson_codec_glue_input_dai_remove, \ }

#define TOHDMITX_OUT(xname, xid, xfmt, xchmax) { \ diff --git a/sound/soc/meson/meson-codec-glue.c b/sound/soc/meson/meson-codec-glue.c new file mode 100644 index 000000000000..97bbc967e176 --- /dev/null +++ b/sound/soc/meson/meson-codec-glue.c @@ -0,0 +1,149 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2019 BayLibre, SAS. +// Author: Jerome Brunet jbrunet@baylibre.com + +#include <linux/module.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> + +#include "meson-codec-glue.h" + +static struct snd_soc_dapm_widget * +meson_codec_glue_get_input(struct snd_soc_dapm_widget *w) +{ + struct snd_soc_dapm_path *p = NULL; + struct snd_soc_dapm_widget *in; + + snd_soc_dapm_widget_for_each_source_path(w, p) { + if (!p->connect) + continue; + + /* Check that we still are in the same component */ + if (snd_soc_dapm_to_component(w->dapm) != + snd_soc_dapm_to_component(p->source->dapm)) + continue; + + if (p->source->id == snd_soc_dapm_dai_in) + return p->source; + + in = meson_codec_glue_get_input(p->source); + if (in) + return in; + } + + return NULL; +} + +static void meson_codec_glue_input_set_data(struct snd_soc_dai *dai, + struct meson_codec_glue_input *data) +{ + dai->playback_dma_data = data; +} + +struct meson_codec_glue_input * +meson_codec_glue_input_get_data(struct snd_soc_dai *dai) +{ + return dai->playback_dma_data; +} +EXPORT_SYMBOL_GPL(meson_codec_glue_input_get_data); + +static struct meson_codec_glue_input * +meson_codec_glue_output_get_input_data(struct snd_soc_dapm_widget *w) +{ + struct snd_soc_dapm_widget *in = + meson_codec_glue_get_input(w); + struct snd_soc_dai *dai; + + if (WARN_ON(!in)) + return NULL; + + dai = in->priv; + + return meson_codec_glue_input_get_data(dai); +} + +int meson_codec_glue_input_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct meson_codec_glue_input *data = + meson_codec_glue_input_get_data(dai); + + data->params.rates = snd_pcm_rate_to_rate_bit(params_rate(params)); + data->params.rate_min = params_rate(params); + data->params.rate_max = params_rate(params); + data->params.formats = 1 << params_format(params); + data->params.channels_min = params_channels(params); + data->params.channels_max = params_channels(params); + data->params.sig_bits = dai->driver->playback.sig_bits; + + return 0; +} +EXPORT_SYMBOL_GPL(meson_codec_glue_input_hw_params); + +int meson_codec_glue_input_set_fmt(struct snd_soc_dai *dai, + unsigned int fmt) +{ + struct meson_codec_glue_input *data = + meson_codec_glue_input_get_data(dai); + + /* Save the source stream format for the downstream link */ + data->fmt = fmt; + return 0; +} +EXPORT_SYMBOL_GPL(meson_codec_glue_input_set_fmt); + +int meson_codec_glue_output_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct meson_codec_glue_input *in_data = + meson_codec_glue_output_get_input_data(dai->capture_widget); + + if (!in_data) + return -ENODEV; + + if (WARN_ON(!rtd->dai_link->params)) { + dev_warn(dai->dev, "codec2codec link expected\n"); + return -EINVAL; + } + + /* Replace link params with the input params */ + rtd->dai_link->params = &in_data->params; + + if (!in_data->fmt) + return 0; + + return snd_soc_runtime_set_dai_fmt(rtd, in_data->fmt); +} +EXPORT_SYMBOL_GPL(meson_codec_glue_output_startup); + +int meson_codec_glue_input_dai_probe(struct snd_soc_dai *dai) +{ + struct meson_codec_glue_input *data; + + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + meson_codec_glue_input_set_data(dai, data); + return 0; +} +EXPORT_SYMBOL_GPL(meson_codec_glue_input_dai_probe); + +int meson_codec_glue_input_dai_remove(struct snd_soc_dai *dai) +{ + struct meson_codec_glue_input *data = + meson_codec_glue_input_get_data(dai); + + kfree(data); + return 0; +} +EXPORT_SYMBOL_GPL(meson_codec_glue_input_dai_remove); + +MODULE_AUTHOR("Jerome Brunet jbrunet@baylibre.com"); +MODULE_DESCRIPTION("Amlogic Codec Glue Helpers"); +MODULE_LICENSE("GPL v2"); + diff --git a/sound/soc/meson/meson-codec-glue.h b/sound/soc/meson/meson-codec-glue.h new file mode 100644 index 000000000000..07f99446c0c6 --- /dev/null +++ b/sound/soc/meson/meson-codec-glue.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright (c) 2018 Baylibre SAS. + * Author: Jerome Brunet jbrunet@baylibre.com + */ + +#ifndef _MESON_CODEC_GLUE_H +#define _MESON_CODEC_GLUE_H + +#include <sound/soc.h> + +struct meson_codec_glue_input { + struct snd_soc_pcm_stream params; + unsigned int fmt; +}; + +/* Input helpers */ +struct meson_codec_glue_input * +meson_codec_glue_input_get_data(struct snd_soc_dai *dai); +int meson_codec_glue_input_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai); +int meson_codec_glue_input_set_fmt(struct snd_soc_dai *dai, + unsigned int fmt); +int meson_codec_glue_input_dai_probe(struct snd_soc_dai *dai); +int meson_codec_glue_input_dai_remove(struct snd_soc_dai *dai); + +/* Output helpers */ +int meson_codec_glue_output_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai); + +#endif /* _MESON_CODEC_GLUE_H */

Add the dt-bindings and documentation of the AIU audio controller. This component provides most of the audio outputs found on the Amlogic Gx SoC family.

Signed-off-by: Jerome Brunet jbrunet@baylibre.com --- .../bindings/sound/amlogic,aiu.yaml | 111 ++++++++++++++++++ include/dt-bindings/sound/meson-aiu.h | 18 +++ 2 files changed, 129 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/amlogic,aiu.yaml create mode 100644 include/dt-bindings/sound/meson-aiu.h

diff --git a/Documentation/devicetree/bindings/sound/amlogic,aiu.yaml b/Documentation/devicetree/bindings/sound/amlogic,aiu.yaml new file mode 100644 index 000000000000..3ef7632dcb59 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/amlogic,aiu.yaml @@ -0,0 +1,111 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/amlogic,aiu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Amlogic AIU audio output controller + +maintainers: + - Jerome Brunet jbrunet@baylibre.com + +properties: + $nodename: + pattern: "^audio-controller@.*" + + "#sound-dai-cells": + const: 2 + + compatible: + items: + - enum: + - amlogic,aiu-gxbb + - amlogic,aiu-gxl + - const: + amlogic,aiu + + clocks: + items: + - description: AIU peripheral clock + - description: I2S peripheral clock + - description: I2S output clock + - description: I2S master clock + - description: I2S mixer clock + - description: SPDIF peripheral clock + - description: SPDIF output clock + - description: SPDIF master clock + - description: SPDIF master clock multiplexer + + clock-names: + items: + - const: pclk + - const: i2s_pclk + - const: i2s_aoclk + - const: i2s_mclk + - const: i2s_mixer + - const: spdif_pclk + - const: spdif_aoclk + - const: spdif_mclk + - const: spdif_mclk_sel + + interrupts: + items: + - description: I2S interrupt line + - description: SPDIF interrupt line + + interrupt-names: + items: + - const: i2s + - const: spdif + + reg: + maxItems: 1 + + resets: + maxItems: 1 + +required: + - "#sound-dai-cells" + - compatible + - clocks + - clock-names + - interrupts + - interrupt-names + - reg + - resets + +examples: + - | + #include <dt-bindings/clock/gxbb-clkc.h> + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/reset/amlogic,meson-gxbb-reset.h> + + aiu: audio-controller@5400 { + compatible = "amlogic,aiu-gxl", "amlogic,aiu"; + #sound-dai-cells = <2>; + reg = <0x0 0x5400 0x0 0x2ac>; + interrupts = <GIC_SPI 48 IRQ_TYPE_EDGE_RISING>, + <GIC_SPI 50 IRQ_TYPE_EDGE_RISING>; + interrupt-names = "i2s", "spdif"; + clocks = <&clkc CLKID_AIU_GLUE>, + <&clkc CLKID_I2S_OUT>, + <&clkc CLKID_AOCLK_GATE>, + <&clkc CLKID_CTS_AMCLK>, + <&clkc CLKID_MIXER_IFACE>, + <&clkc CLKID_IEC958>, + <&clkc CLKID_IEC958_GATE>, + <&clkc CLKID_CTS_MCLK_I958>, + <&clkc CLKID_CTS_I958>; + clock-names = "pclk", + "i2s_pclk", + "i2s_aoclk", + "i2s_mclk", + "i2s_mixer", + "spdif_pclk", + "spdif_aoclk", + "spdif_mclk", + "spdif_mclk_sel"; + resets = <&reset RESET_AIU>; + }; + diff --git a/include/dt-bindings/sound/meson-aiu.h b/include/dt-bindings/sound/meson-aiu.h new file mode 100644 index 000000000000..1051b8af298b --- /dev/null +++ b/include/dt-bindings/sound/meson-aiu.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __DT_MESON_AIU_H +#define __DT_MESON_AIU_H + +#define AIU_CPU 0 +#define AIU_HDMI 1 +#define AIU_ACODEC 2 + +#define CPU_I2S_FIFO 0 +#define CPU_SPDIF_FIFO 1 +#define CPU_I2S_ENCODER 2 +#define CPU_SPDIF_ENCODER 3 + +#define CTRL_I2S 0 +#define CTRL_PCM 1 +#define CTRL_OUT 2 + +#endif /* __DT_MESON_AIU_H */

Add support for the i2s and spdif audio outputs (AIU) found in the amlogic Gx SoC family

Signed-off-by: Jerome Brunet jbrunet@baylibre.com --- sound/soc/meson/Kconfig | 7 + sound/soc/meson/Makefile | 7 + sound/soc/meson/aiu-encoder-i2s.c | 324 ++++++++++++++++++++++++++ sound/soc/meson/aiu-encoder-spdif.c | 209 +++++++++++++++++ sound/soc/meson/aiu-fifo-i2s.c | 153 ++++++++++++ sound/soc/meson/aiu-fifo-spdif.c | 186 +++++++++++++++ sound/soc/meson/aiu-fifo.c | 223 ++++++++++++++++++ sound/soc/meson/aiu-fifo.h | 50 ++++ sound/soc/meson/aiu.c | 348 ++++++++++++++++++++++++++++ sound/soc/meson/aiu.h | 82 +++++++ 10 files changed, 1589 insertions(+) create mode 100644 sound/soc/meson/aiu-encoder-i2s.c create mode 100644 sound/soc/meson/aiu-encoder-spdif.c create mode 100644 sound/soc/meson/aiu-fifo-i2s.c create mode 100644 sound/soc/meson/aiu-fifo-spdif.c create mode 100644 sound/soc/meson/aiu-fifo.c create mode 100644 sound/soc/meson/aiu-fifo.h create mode 100644 sound/soc/meson/aiu.c create mode 100644 sound/soc/meson/aiu.h

diff --git a/sound/soc/meson/Kconfig b/sound/soc/meson/Kconfig index ee6d53949d45..ca269dedfc7f 100644 --- a/sound/soc/meson/Kconfig +++ b/sound/soc/meson/Kconfig @@ -2,6 +2,13 @@ menu "ASoC support for Amlogic platforms" depends on ARCH_MESON || COMPILE_TEST

+config SND_MESON_AIU + tristate "Amlogic AIU" + select SND_PCM_IEC958 + help + Select Y or M to add support for the Audio output subsystem found + in the Amlogic GX SoC family + config SND_MESON_AXG_FIFO tristate select REGMAP_MMIO diff --git a/sound/soc/meson/Makefile b/sound/soc/meson/Makefile index 529a807b3f37..a7b79d717288 100644 --- a/sound/soc/meson/Makefile +++ b/sound/soc/meson/Makefile @@ -1,5 +1,11 @@ # SPDX-License-Identifier: (GPL-2.0 OR MIT)

+snd-soc-meson-aiu-objs := aiu.o +snd-soc-meson-aiu-objs += aiu-encoder-i2s.o +snd-soc-meson-aiu-objs += aiu-encoder-spdif.o +snd-soc-meson-aiu-objs += aiu-fifo.o +snd-soc-meson-aiu-objs += aiu-fifo-i2s.o +snd-soc-meson-aiu-objs += aiu-fifo-spdif.o snd-soc-meson-axg-fifo-objs := axg-fifo.o snd-soc-meson-axg-frddr-objs := axg-frddr.o snd-soc-meson-axg-toddr-objs := axg-toddr.o @@ -14,6 +20,7 @@ snd-soc-meson-axg-pdm-objs := axg-pdm.o snd-soc-meson-codec-glue-objs := meson-codec-glue.o snd-soc-meson-g12a-tohdmitx-objs := g12a-tohdmitx.o

+obj-$(CONFIG_SND_MESON_AIU) += snd-soc-meson-aiu.o obj-$(CONFIG_SND_MESON_AXG_FIFO) += snd-soc-meson-axg-fifo.o obj-$(CONFIG_SND_MESON_AXG_FRDDR) += snd-soc-meson-axg-frddr.o obj-$(CONFIG_SND_MESON_AXG_TODDR) += snd-soc-meson-axg-toddr.o diff --git a/sound/soc/meson/aiu-encoder-i2s.c b/sound/soc/meson/aiu-encoder-i2s.c new file mode 100644 index 000000000000..13bf029086a9 --- /dev/null +++ b/sound/soc/meson/aiu-encoder-i2s.c @@ -0,0 +1,324 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2020 BayLibre, SAS. +// Author: Jerome Brunet jbrunet@baylibre.com + +#include <linux/bitfield.h> +#include <linux/clk.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> + +#include "aiu.h" + +#define AIU_I2S_SOURCE_DESC_MODE_8CH BIT(0) +#define AIU_I2S_SOURCE_DESC_MODE_24BIT BIT(5) +#define AIU_I2S_SOURCE_DESC_MODE_32BIT BIT(9) +#define AIU_I2S_SOURCE_DESC_MODE_SPLIT BIT(11) +#define AIU_RST_SOFT_I2S_FAST BIT(0) + +#define AIU_I2S_DAC_CFG_MSB_FIRST BIT(2) +#define AIU_I2S_MISC_HOLD_EN BIT(2) +#define AIU_CLK_CTRL_I2S_DIV_EN BIT(0) +#define AIU_CLK_CTRL_I2S_DIV GENMASK(3, 2) +#define AIU_CLK_CTRL_AOCLK_INVERT BIT(6) +#define AIU_CLK_CTRL_LRCLK_INVERT BIT(7) +#define AIU_CLK_CTRL_LRCLK_SKEW GENMASK(9, 8) +#define AIU_CLK_CTRL_MORE_HDMI_AMCLK BIT(6) +#define AIU_CLK_CTRL_MORE_I2S_DIV GENMASK(5, 0) +#define AIU_CODEC_DAC_LRCLK_CTRL_DIV GENMASK(11, 0) + +struct aiu_encoder_i2s { + struct clk *aoclk; + struct clk *mclk; + struct clk *mixer; + struct clk *pclk; +}; + +static void aiu_encoder_i2s_divider_enable(struct snd_soc_component *component, + bool enable) +{ + snd_soc_component_update_bits(component, AIU_CLK_CTRL, + AIU_CLK_CTRL_I2S_DIV_EN, + enable ? AIU_CLK_CTRL_I2S_DIV_EN : 0); +} + +static void aiu_encoder_i2s_hold(struct snd_soc_component *component, + bool enable) +{ + snd_soc_component_update_bits(component, AIU_I2S_MISC, + AIU_I2S_MISC_HOLD_EN, + enable ? AIU_I2S_MISC_HOLD_EN : 0); +} + +static int aiu_encoder_i2s_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + aiu_encoder_i2s_hold(component, false); + return 0; + + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + aiu_encoder_i2s_hold(component, true); + return 0; + + default: + return -EINVAL; + } +} + +static int aiu_encoder_i2s_setup_desc(struct snd_soc_component *component, + struct snd_pcm_hw_params *params) +{ + /* Always operate in split (classic interleaved) mode */ + unsigned int desc = AIU_I2S_SOURCE_DESC_MODE_SPLIT; + unsigned int val; + + /* Reset required to update the pipeline */ + snd_soc_component_write(component, AIU_RST_SOFT, AIU_RST_SOFT_I2S_FAST); + snd_soc_component_read(component, AIU_I2S_SYNC, &val); + + switch (params_physical_width(params)) { + case 16: /* Nothing to do */ + break; + + case 32: + desc |= (AIU_I2S_SOURCE_DESC_MODE_24BIT | + AIU_I2S_SOURCE_DESC_MODE_32BIT); + break; + + default: + return -EINVAL; + } + + switch (params_channels(params)) { + case 2: /* Nothing to do */ + break; + case 8: + desc |= AIU_I2S_SOURCE_DESC_MODE_8CH; + break; + default: + return -EINVAL; + } + + snd_soc_component_update_bits(component, AIU_I2S_SOURCE_DESC, + AIU_I2S_SOURCE_DESC_MODE_8CH | + AIU_I2S_SOURCE_DESC_MODE_24BIT | + AIU_I2S_SOURCE_DESC_MODE_32BIT | + AIU_I2S_SOURCE_DESC_MODE_SPLIT, + desc); + + return 0; +} + +static int aiu_encoder_i2s_set_clocks(struct snd_soc_component *component, + struct snd_pcm_hw_params *params) +{ + struct aiu *aiu = snd_soc_component_get_drvdata(component); + unsigned int srate = params_rate(params); + unsigned int fs, bs; + + /* Get the oversampling factor */ + fs = DIV_ROUND_CLOSEST(clk_get_rate(aiu->i2s.clks[MCLK].clk), srate); + + if (fs % 64) + return -EINVAL; + + /* Send data MSB first */ + snd_soc_component_update_bits(component, AIU_I2S_DAC_CFG, + AIU_I2S_DAC_CFG_MSB_FIRST, + AIU_I2S_DAC_CFG_MSB_FIRST); + + /* Set bclk to lrlck ratio */ + snd_soc_component_update_bits(component, AIU_CODEC_DAC_LRCLK_CTRL, + AIU_CODEC_DAC_LRCLK_CTRL_DIV, + FIELD_PREP(AIU_CODEC_DAC_LRCLK_CTRL_DIV, + 64 - 1)); + + /* Use CLK_MORE for mclk to bclk divider */ + snd_soc_component_update_bits(component, AIU_CLK_CTRL, + AIU_CLK_CTRL_I2S_DIV, 0); + + /* + * NOTE: this HW is odd. + * In most configuration, the i2s divider is 'mclk / blck'. + * However, in 16 bits - 8ch mode, this factor needs to be + * increased by 50% to get the correct output rate. + * No idea why ! + */ + bs = fs / 64; + if (params_width(params) == 16 && params_channels(params) == 8) { + if (bs % 2) { + dev_err(component->dev, + "Cannot increase i2s divider by 50%%\n"); + return -EINVAL; + } + bs += bs / 2; + } + + snd_soc_component_update_bits(component, AIU_CLK_CTRL_MORE, + AIU_CLK_CTRL_MORE_I2S_DIV, + FIELD_PREP(AIU_CLK_CTRL_MORE_I2S_DIV, + bs - 1)); + + /* Make sure amclk is used for HDMI i2s as well */ + snd_soc_component_update_bits(component, AIU_CLK_CTRL_MORE, + AIU_CLK_CTRL_MORE_HDMI_AMCLK, + AIU_CLK_CTRL_MORE_HDMI_AMCLK); + + return 0; +} + +static int aiu_encoder_i2s_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + int ret; + + /* Disable the clock while changing the settings */ + aiu_encoder_i2s_divider_enable(component, false); + + ret = aiu_encoder_i2s_setup_desc(component, params); + if (ret) { + dev_err(dai->dev, "setting i2s desc failed\n"); + return ret; + } + + ret = aiu_encoder_i2s_set_clocks(component, params); + if (ret) { + dev_err(dai->dev, "setting i2s clocks failed\n"); + return ret; + } + + aiu_encoder_i2s_divider_enable(component, true); + + return 0; +} + +static int aiu_encoder_i2s_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + + aiu_encoder_i2s_divider_enable(component, false); + + return 0; +} + +static int aiu_encoder_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_component *component = dai->component; + unsigned int inv = fmt & SND_SOC_DAIFMT_INV_MASK; + unsigned int val = 0; + unsigned int skew; + + /* Only CPU Master / Codec Slave supported ATM */ + if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) + return -EINVAL; + + if (inv == SND_SOC_DAIFMT_NB_IF || + inv == SND_SOC_DAIFMT_IB_IF) + val |= AIU_CLK_CTRL_LRCLK_INVERT; + + if (inv == SND_SOC_DAIFMT_IB_NF || + inv == SND_SOC_DAIFMT_IB_IF) + val |= AIU_CLK_CTRL_AOCLK_INVERT; + + /* Signal skew */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + /* Invert sample clock for i2s */ + val ^= AIU_CLK_CTRL_LRCLK_INVERT; + skew = 1; + break; + case SND_SOC_DAIFMT_LEFT_J: + skew = 0; + break; + default: + return -EINVAL; + } + + val |= FIELD_PREP(AIU_CLK_CTRL_LRCLK_SKEW, skew); + snd_soc_component_update_bits(component, AIU_CLK_CTRL, + AIU_CLK_CTRL_LRCLK_INVERT | + AIU_CLK_CTRL_AOCLK_INVERT | + AIU_CLK_CTRL_LRCLK_SKEW, + val); + + return 0; +} + +static int aiu_encoder_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, + unsigned int freq, int dir) +{ + struct aiu *aiu = snd_soc_component_get_drvdata(dai->component); + int ret; + + if (WARN_ON(clk_id != 0)) + return -EINVAL; + + if (dir == SND_SOC_CLOCK_IN) + return 0; + + ret = clk_set_rate(aiu->i2s.clks[MCLK].clk, freq); + if (ret) + dev_err(dai->dev, "Failed to set sysclk to %uHz", freq); + + return ret; +} + +static const unsigned int hw_channels[] = {2, 8}; +static const struct snd_pcm_hw_constraint_list hw_channel_constraints = { + .list = hw_channels, + .count = ARRAY_SIZE(hw_channels), + .mask = 0, +}; + +static int aiu_encoder_i2s_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct aiu *aiu = snd_soc_component_get_drvdata(dai->component); + int ret; + + /* Make sure the encoder gets either 2 or 8 channels */ + ret = snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &hw_channel_constraints); + if (ret) { + dev_err(dai->dev, "adding channels constraints failed\n"); + return ret; + } + + ret = clk_bulk_prepare_enable(aiu->i2s.clk_num, aiu->i2s.clks); + if (ret) + dev_err(dai->dev, "failed to enable i2s clocks\n"); + + return ret; +} + +static void aiu_encoder_i2s_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct aiu *aiu = snd_soc_component_get_drvdata(dai->component); + + clk_bulk_disable_unprepare(aiu->i2s.clk_num, aiu->i2s.clks); +} + +const struct snd_soc_dai_ops aiu_encoder_i2s_dai_ops = { + .trigger = aiu_encoder_i2s_trigger, + .hw_params = aiu_encoder_i2s_hw_params, + .hw_free = aiu_encoder_i2s_hw_free, + .set_fmt = aiu_encoder_i2s_set_fmt, + .set_sysclk = aiu_encoder_i2s_set_sysclk, + .startup = aiu_encoder_i2s_startup, + .shutdown = aiu_encoder_i2s_shutdown, +}; + diff --git a/sound/soc/meson/aiu-encoder-spdif.c b/sound/soc/meson/aiu-encoder-spdif.c new file mode 100644 index 000000000000..de850913975f --- /dev/null +++ b/sound/soc/meson/aiu-encoder-spdif.c @@ -0,0 +1,209 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2020 BayLibre, SAS. +// Author: Jerome Brunet jbrunet@baylibre.com + +#include <linux/bitfield.h> +#include <linux/clk.h> +#include <sound/pcm_params.h> +#include <sound/pcm_iec958.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> + +#include "aiu.h" + +#define AIU_958_MISC_NON_PCM BIT(0) +#define AIU_958_MISC_MODE_16BITS BIT(1) +#define AIU_958_MISC_16BITS_ALIGN GENMASK(6, 5) +#define AIU_958_MISC_MODE_32BITS BIT(7) +#define AIU_958_MISC_U_FROM_STREAM BIT(12) +#define AIU_958_MISC_FORCE_LR BIT(13) +#define AIU_958_CTRL_HOLD_EN BIT(0) +#define AIU_CLK_CTRL_958_DIV_EN BIT(1) +#define AIU_CLK_CTRL_958_DIV GENMASK(5, 4) +#define AIU_CLK_CTRL_958_DIV_MORE BIT(12) + +#define AIU_CS_WORD_LEN 4 +#define AIU_958_INTERNAL_DIV 2 + +static void +aiu_encoder_spdif_divider_enable(struct snd_soc_component *component, + bool enable) +{ + snd_soc_component_update_bits(component, AIU_CLK_CTRL, + AIU_CLK_CTRL_958_DIV_EN, + enable ? AIU_CLK_CTRL_958_DIV_EN : 0); +} + +static void aiu_encoder_spdif_hold(struct snd_soc_component *component, + bool enable) +{ + snd_soc_component_update_bits(component, AIU_958_CTRL, + AIU_958_CTRL_HOLD_EN, + enable ? AIU_958_CTRL_HOLD_EN : 0); +} + +static int +aiu_encoder_spdif_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + aiu_encoder_spdif_hold(component, false); + return 0; + + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + aiu_encoder_spdif_hold(component, true); + return 0; + + default: + return -EINVAL; + } +} + +static int aiu_encoder_spdif_setup_cs_word(struct snd_soc_component *component, + struct snd_pcm_hw_params *params) +{ + u8 cs[AIU_CS_WORD_LEN]; + unsigned int val; + int ret; + + ret = snd_pcm_create_iec958_consumer_hw_params(params, cs, + AIU_CS_WORD_LEN); + if (ret < 0) + return ret; + + /* Write the 1st half word */ + val = cs[1] | cs[0] << 8; + snd_soc_component_write(component, AIU_958_CHSTAT_L0, val); + snd_soc_component_write(component, AIU_958_CHSTAT_R0, val); + + /* Write the 2nd half word */ + val = cs[3] | cs[2] << 8; + snd_soc_component_write(component, AIU_958_CHSTAT_L1, val); + snd_soc_component_write(component, AIU_958_CHSTAT_R1, val); + + return 0; +} + +static int aiu_encoder_spdif_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct aiu *aiu = snd_soc_component_get_drvdata(component); + unsigned int val = 0, mrate; + int ret; + + /* Disable the clock while changing the settings */ + aiu_encoder_spdif_divider_enable(component, false); + + switch (params_physical_width(params)) { + case 16: + val |= AIU_958_MISC_MODE_16BITS; + val |= FIELD_PREP(AIU_958_MISC_16BITS_ALIGN, 2); + break; + case 32: + val |= AIU_958_MISC_MODE_32BITS; + break; + default: + dev_err(dai->dev, "Unsupport physical width\n"); + return -EINVAL; + } + + snd_soc_component_update_bits(component, AIU_958_MISC, + AIU_958_MISC_NON_PCM | + AIU_958_MISC_MODE_16BITS | + AIU_958_MISC_16BITS_ALIGN | + AIU_958_MISC_MODE_32BITS | + AIU_958_MISC_FORCE_LR | + AIU_958_MISC_U_FROM_STREAM, + val); + + /* Set the stream channel status word */ + ret = aiu_encoder_spdif_setup_cs_word(component, params); + if (ret) { + dev_err(dai->dev, "failed to set channel status word\n"); + return ret; + } + + snd_soc_component_update_bits(component, AIU_CLK_CTRL, + AIU_CLK_CTRL_958_DIV | + AIU_CLK_CTRL_958_DIV_MORE, + FIELD_PREP(AIU_CLK_CTRL_958_DIV, + __ffs(AIU_958_INTERNAL_DIV))); + + /* 2 * 32bits per subframe * 2 channels = 128 */ + mrate = params_rate(params) * 128 * AIU_958_INTERNAL_DIV; + ret = clk_set_rate(aiu->spdif.clks[MCLK].clk, mrate); + if (ret) { + dev_err(dai->dev, "failed to set mclk rate\n"); + return ret; + } + + aiu_encoder_spdif_divider_enable(component, true); + + return 0; +} + +static int aiu_encoder_spdif_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + + aiu_encoder_spdif_divider_enable(component, false); + + return 0; +} + +static int aiu_encoder_spdif_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct aiu *aiu = snd_soc_component_get_drvdata(dai->component); + int ret; + + /* + * NOTE: Make sure the spdif block is on its own divider. + * + * The spdif can be clocked by the i2s master clock or its own + * clock. We should (in theory) change the source depending on the + * origin of the data. + * + * However, considering the clocking scheme used on these platforms, + * the master clocks will pick the same PLL source when they are + * playing from the same FIFO. The clock should be in sync so, it + * should not be necessary to reparent the spdif master clock. + */ + ret = clk_set_parent(aiu->spdif.clks[MCLK].clk, + aiu->spdif_mclk); + if (ret) + return ret; + + ret = clk_bulk_prepare_enable(aiu->spdif.clk_num, aiu->spdif.clks); + if (ret) + dev_err(dai->dev, "failed to enable spdif clocks\n"); + + return ret; +} + +static void aiu_encoder_spdif_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct aiu *aiu = snd_soc_component_get_drvdata(dai->component); + + clk_bulk_disable_unprepare(aiu->spdif.clk_num, aiu->spdif.clks); +} + +const struct snd_soc_dai_ops aiu_encoder_spdif_dai_ops = { + .trigger = aiu_encoder_spdif_trigger, + .hw_params = aiu_encoder_spdif_hw_params, + .hw_free = aiu_encoder_spdif_hw_free, + .startup = aiu_encoder_spdif_startup, + .shutdown = aiu_encoder_spdif_shutdown, +}; diff --git a/sound/soc/meson/aiu-fifo-i2s.c b/sound/soc/meson/aiu-fifo-i2s.c new file mode 100644 index 000000000000..9a5271ce80fe --- /dev/null +++ b/sound/soc/meson/aiu-fifo-i2s.c @@ -0,0 +1,153 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2020 BayLibre, SAS. +// Author: Jerome Brunet jbrunet@baylibre.com + +#include <linux/bitfield.h> +#include <linux/clk.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> + +#include "aiu.h" +#include "aiu-fifo.h" + +#define AIU_I2S_SOURCE_DESC_MODE_8CH BIT(0) +#define AIU_I2S_SOURCE_DESC_MODE_24BIT BIT(5) +#define AIU_I2S_SOURCE_DESC_MODE_32BIT BIT(9) +#define AIU_I2S_SOURCE_DESC_MODE_SPLIT BIT(11) +#define AIU_MEM_I2S_MASKS_IRQ_BLOCK GENMASK(31, 16) +#define AIU_MEM_I2S_CONTROL_MODE_16BIT BIT(6) +#define AIU_MEM_I2S_BUF_CNTL_INIT BIT(0) +#define AIU_RST_SOFT_I2S_FAST BIT(0) + +#define AIU_FIFO_I2S_BLOCK 256 + +static struct snd_pcm_hardware fifo_i2s_pcm = { + .info = (SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE), + .formats = AIU_FORMATS, + .rate_min = 5512, + .rate_max = 192000, + .channels_min = 2, + .channels_max = 8, + .period_bytes_min = AIU_FIFO_I2S_BLOCK, + .period_bytes_max = AIU_FIFO_I2S_BLOCK * USHRT_MAX, + .periods_min = 2, + .periods_max = UINT_MAX, + + /* No real justification for this */ + .buffer_bytes_max = 1 * 1024 * 1024, +}; + +static int aiu_fifo_i2s_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + unsigned int val; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + snd_soc_component_write(component, AIU_RST_SOFT, + AIU_RST_SOFT_I2S_FAST); + snd_soc_component_read(component, AIU_I2S_SYNC, &val); + break; + } + + return aiu_fifo_trigger(substream, cmd, dai); +} + +static int aiu_fifo_i2s_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + int ret; + + ret = aiu_fifo_prepare(substream, dai); + if (ret) + return ret; + + snd_soc_component_update_bits(component, + AIU_MEM_I2S_BUF_CNTL, + AIU_MEM_I2S_BUF_CNTL_INIT, + AIU_MEM_I2S_BUF_CNTL_INIT); + snd_soc_component_update_bits(component, + AIU_MEM_I2S_BUF_CNTL, + AIU_MEM_I2S_BUF_CNTL_INIT, 0); + + return 0; +} + +static int aiu_fifo_i2s_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct aiu_fifo *fifo = dai->playback_dma_data; + unsigned int val; + int ret; + + ret = aiu_fifo_hw_params(substream, params, dai); + if (ret) + return ret; + + switch (params_physical_width(params)) { + case 16: + val = AIU_MEM_I2S_CONTROL_MODE_16BIT; + break; + case 32: + val = 0; + break; + default: + dev_err(dai->dev, "Unsupported physical width %u\n", + params_physical_width(params)); + return -EINVAL; + } + + snd_soc_component_update_bits(component, AIU_MEM_I2S_CONTROL, + AIU_MEM_I2S_CONTROL_MODE_16BIT, + val); + + /* Setup the irq periodicity */ + val = params_period_bytes(params) / fifo->fifo_block; + val = FIELD_PREP(AIU_MEM_I2S_MASKS_IRQ_BLOCK, val); + snd_soc_component_update_bits(component, AIU_MEM_I2S_MASKS, + AIU_MEM_I2S_MASKS_IRQ_BLOCK, val); + + return 0; +} + +const struct snd_soc_dai_ops aiu_fifo_i2s_dai_ops = { + .trigger = aiu_fifo_i2s_trigger, + .prepare = aiu_fifo_i2s_prepare, + .hw_params = aiu_fifo_i2s_hw_params, + .hw_free = aiu_fifo_hw_free, + .startup = aiu_fifo_startup, + .shutdown = aiu_fifo_shutdown, +}; + +int aiu_fifo_i2s_dai_probe(struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct aiu *aiu = snd_soc_component_get_drvdata(component); + struct aiu_fifo *fifo; + int ret; + + ret = aiu_fifo_dai_probe(dai); + if (ret) + return ret; + + fifo = dai->playback_dma_data; + + fifo->pcm = &fifo_i2s_pcm; + fifo->mem_offset = AIU_MEM_I2S_START; + fifo->fifo_block = AIU_FIFO_I2S_BLOCK; + fifo->pclk = aiu->i2s.clks[PCLK].clk; + fifo->irq = aiu->i2s.irq; + + return 0; +} diff --git a/sound/soc/meson/aiu-fifo-spdif.c b/sound/soc/meson/aiu-fifo-spdif.c new file mode 100644 index 000000000000..44eb6faacf44 --- /dev/null +++ b/sound/soc/meson/aiu-fifo-spdif.c @@ -0,0 +1,186 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2020 BayLibre, SAS. +// Author: Jerome Brunet jbrunet@baylibre.com + +#include <linux/clk.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> + +#include "aiu.h" +#include "aiu-fifo.h" + +#define AIU_IEC958_DCU_FF_CTRL_EN BIT(0) +#define AIU_IEC958_DCU_FF_CTRL_AUTO_DISABLE BIT(1) +#define AIU_IEC958_DCU_FF_CTRL_IRQ_MODE GENMASK(3, 2) +#define AIU_IEC958_DCU_FF_CTRL_IRQ_OUT_THD BIT(2) +#define AIU_IEC958_DCU_FF_CTRL_IRQ_FRAME_READ BIT(3) +#define AIU_IEC958_DCU_FF_CTRL_SYNC_HEAD_EN BIT(4) +#define AIU_IEC958_DCU_FF_CTRL_BYTE_SEEK BIT(5) +#define AIU_IEC958_DCU_FF_CTRL_CONTINUE BIT(6) +#define AIU_MEM_IEC958_CONTROL_ENDIAN GENMASK(5, 3) +#define AIU_MEM_IEC958_CONTROL_RD_DDR BIT(6) +#define AIU_MEM_IEC958_CONTROL_MODE_16BIT BIT(7) +#define AIU_MEM_IEC958_CONTROL_MODE_LINEAR BIT(8) +#define AIU_MEM_IEC958_BUF_CNTL_INIT BIT(0) + +#define AIU_FIFO_SPDIF_BLOCK 8 + +static struct snd_pcm_hardware fifo_spdif_pcm = { + .info = (SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE), + .formats = AIU_FORMATS, + .rate_min = 5512, + .rate_max = 192000, + .channels_min = 2, + .channels_max = 2, + .period_bytes_min = AIU_FIFO_SPDIF_BLOCK, + .period_bytes_max = AIU_FIFO_SPDIF_BLOCK * USHRT_MAX, + .periods_min = 2, + .periods_max = UINT_MAX, + + /* No real justification for this */ + .buffer_bytes_max = 1 * 1024 * 1024, +}; + +static void fifo_spdif_dcu_enable(struct snd_soc_component *component, + bool enable) +{ + snd_soc_component_update_bits(component, AIU_IEC958_DCU_FF_CTRL, + AIU_IEC958_DCU_FF_CTRL_EN, + enable ? AIU_IEC958_DCU_FF_CTRL_EN : 0); +} + +static int fifo_spdif_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + int ret; + + ret = aiu_fifo_trigger(substream, cmd, dai); + if (ret) + return ret; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + fifo_spdif_dcu_enable(component, true); + break; + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_STOP: + fifo_spdif_dcu_enable(component, false); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int fifo_spdif_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + int ret; + + ret = aiu_fifo_prepare(substream, dai); + if (ret) + return ret; + + snd_soc_component_update_bits(component, + AIU_MEM_IEC958_BUF_CNTL, + AIU_MEM_IEC958_BUF_CNTL_INIT, + AIU_MEM_IEC958_BUF_CNTL_INIT); + snd_soc_component_update_bits(component, + AIU_MEM_IEC958_BUF_CNTL, + AIU_MEM_IEC958_BUF_CNTL_INIT, 0); + + return 0; +} + +static int fifo_spdif_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + unsigned int val; + int ret; + + ret = aiu_fifo_hw_params(substream, params, dai); + if (ret) + return ret; + + val = AIU_MEM_IEC958_CONTROL_RD_DDR | + AIU_MEM_IEC958_CONTROL_MODE_LINEAR; + + switch (params_physical_width(params)) { + case 16: + val |= AIU_MEM_IEC958_CONTROL_MODE_16BIT; + break; + case 32: + break; + default: + dev_err(dai->dev, "Unsupported physical width %u\n", + params_physical_width(params)); + return -EINVAL; + } + + snd_soc_component_update_bits(component, AIU_MEM_IEC958_CONTROL, + AIU_MEM_IEC958_CONTROL_ENDIAN | + AIU_MEM_IEC958_CONTROL_RD_DDR | + AIU_MEM_IEC958_CONTROL_MODE_LINEAR | + AIU_MEM_IEC958_CONTROL_MODE_16BIT, + val); + + /* Number bytes read by the FIFO between each IRQ */ + snd_soc_component_write(component, AIU_IEC958_BPF, + params_period_bytes(params)); + + /* + * AUTO_DISABLE and SYNC_HEAD are enabled by default but + * this should be disabled in PCM (uncompressed) mode + */ + snd_soc_component_update_bits(component, AIU_IEC958_DCU_FF_CTRL, + AIU_IEC958_DCU_FF_CTRL_AUTO_DISABLE | + AIU_IEC958_DCU_FF_CTRL_IRQ_MODE | + AIU_IEC958_DCU_FF_CTRL_SYNC_HEAD_EN, + AIU_IEC958_DCU_FF_CTRL_IRQ_FRAME_READ); + + return 0; +} + +const struct snd_soc_dai_ops aiu_fifo_spdif_dai_ops = { + .trigger = fifo_spdif_trigger, + .prepare = fifo_spdif_prepare, + .hw_params = fifo_spdif_hw_params, + .hw_free = aiu_fifo_hw_free, + .startup = aiu_fifo_startup, + .shutdown = aiu_fifo_shutdown, +}; + +int aiu_fifo_spdif_dai_probe(struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct aiu *aiu = snd_soc_component_get_drvdata(component); + struct aiu_fifo *fifo; + int ret; + + ret = aiu_fifo_dai_probe(dai); + if (ret) + return ret; + + fifo = dai->playback_dma_data; + + fifo->pcm = &fifo_spdif_pcm; + fifo->mem_offset = AIU_MEM_IEC958_START; + fifo->fifo_block = 1; + fifo->pclk = aiu->spdif.clks[PCLK].clk; + fifo->irq = aiu->spdif.irq; + + return 0; +} diff --git a/sound/soc/meson/aiu-fifo.c b/sound/soc/meson/aiu-fifo.c new file mode 100644 index 000000000000..da8c098e8750 --- /dev/null +++ b/sound/soc/meson/aiu-fifo.c @@ -0,0 +1,223 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2020 BayLibre, SAS. +// Author: Jerome Brunet jbrunet@baylibre.com + +#include <linux/bitfield.h> +#include <linux/clk.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> + +#include "aiu-fifo.h" + +#define AIU_MEM_START 0x00 +#define AIU_MEM_RD 0x04 +#define AIU_MEM_END 0x08 +#define AIU_MEM_MASKS 0x0c +#define AIU_MEM_MASK_CH_RD GENMASK(7, 0) +#define AIU_MEM_MASK_CH_MEM GENMASK(15, 8) +#define AIU_MEM_CONTROL 0x10 +#define AIU_MEM_CONTROL_INIT BIT(0) +#define AIU_MEM_CONTROL_FILL_EN BIT(1) +#define AIU_MEM_CONTROL_EMPTY_EN BIT(2) + +static struct snd_soc_dai *aiu_fifo_dai(struct snd_pcm_substream *ss) +{ + struct snd_soc_pcm_runtime *rtd = ss->private_data; + + return rtd->cpu_dai; +} + +snd_pcm_uframes_t aiu_fifo_pointer(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct snd_soc_dai *dai = aiu_fifo_dai(substream); + struct aiu_fifo *fifo = dai->playback_dma_data; + struct snd_pcm_runtime *runtime = substream->runtime; + unsigned int addr; + + snd_soc_component_read(component, fifo->mem_offset + AIU_MEM_RD, + &addr); + + return bytes_to_frames(runtime, addr - (unsigned int)runtime->dma_addr); +} + +static void aiu_fifo_enable(struct snd_soc_dai *dai, bool enable) +{ + struct snd_soc_component *component = dai->component; + struct aiu_fifo *fifo = dai->playback_dma_data; + unsigned int en_mask = (AIU_MEM_CONTROL_FILL_EN | + AIU_MEM_CONTROL_EMPTY_EN); + + snd_soc_component_update_bits(component, + fifo->mem_offset + AIU_MEM_CONTROL, + en_mask, enable ? en_mask : 0); +} + +int aiu_fifo_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + aiu_fifo_enable(dai, true); + break; + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_STOP: + aiu_fifo_enable(dai, false); + break; + default: + return -EINVAL; + } + + return 0; +} + +int aiu_fifo_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct aiu_fifo *fifo = dai->playback_dma_data; + + snd_soc_component_update_bits(component, + fifo->mem_offset + AIU_MEM_CONTROL, + AIU_MEM_CONTROL_INIT, + AIU_MEM_CONTROL_INIT); + snd_soc_component_update_bits(component, + fifo->mem_offset + AIU_MEM_CONTROL, + AIU_MEM_CONTROL_INIT, 0); + return 0; +} + +int aiu_fifo_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_soc_component *component = dai->component; + struct aiu_fifo *fifo = dai->playback_dma_data; + dma_addr_t end; + int ret; + + ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); + if (ret < 0) + return ret; + + /* Setup the fifo boundaries */ + end = runtime->dma_addr + runtime->dma_bytes - fifo->fifo_block; + snd_soc_component_write(component, fifo->mem_offset + AIU_MEM_START, + runtime->dma_addr); + snd_soc_component_write(component, fifo->mem_offset + AIU_MEM_RD, + runtime->dma_addr); + snd_soc_component_write(component, fifo->mem_offset + AIU_MEM_END, + end); + + /* Setup the fifo to read all the memory - no skip */ + snd_soc_component_update_bits(component, + fifo->mem_offset + AIU_MEM_MASKS, + AIU_MEM_MASK_CH_RD | AIU_MEM_MASK_CH_MEM, + FIELD_PREP(AIU_MEM_MASK_CH_RD, 0xff) | + FIELD_PREP(AIU_MEM_MASK_CH_MEM, 0xff)); + + return 0; +} + +int aiu_fifo_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + return snd_pcm_lib_free_pages(substream); +} + +static irqreturn_t aiu_fifo_isr(int irq, void *dev_id) +{ + struct snd_pcm_substream *playback = dev_id; + + snd_pcm_period_elapsed(playback); + + return IRQ_HANDLED; +} + +int aiu_fifo_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct aiu_fifo *fifo = dai->playback_dma_data; + int ret; + + snd_soc_set_runtime_hwparams(substream, fifo->pcm); + + /* + * Make sure the buffer and period size are multiple of the fifo burst + * size + */ + ret = snd_pcm_hw_constraint_step(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_BUFFER_BYTES, + fifo->fifo_block); + if (ret) + return ret; + + ret = snd_pcm_hw_constraint_step(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_PERIOD_BYTES, + fifo->fifo_block); + if (ret) + return ret; + + ret = clk_prepare_enable(fifo->pclk); + if (ret) + return ret; + + ret = request_irq(fifo->irq, aiu_fifo_isr, 0, dev_name(dai->dev), + substream); + if (ret) + clk_disable_unprepare(fifo->pclk); + + return ret; +} + +void aiu_fifo_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct aiu_fifo *fifo = dai->playback_dma_data; + + free_irq(fifo->irq, substream); + clk_disable_unprepare(fifo->pclk); +} + +int aiu_fifo_pcm_new(struct snd_soc_pcm_runtime *rtd, + struct snd_soc_dai *dai) +{ + struct snd_pcm_substream *substream = + rtd->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; + struct snd_card *card = rtd->card->snd_card; + struct aiu_fifo *fifo = dai->playback_dma_data; + size_t size = fifo->pcm->buffer_bytes_max; + + snd_pcm_lib_preallocate_pages(substream, + SNDRV_DMA_TYPE_DEV, + card->dev, size, size); + + return 0; +} + +int aiu_fifo_dai_probe(struct snd_soc_dai *dai) +{ + struct aiu_fifo *fifo; + + fifo = kzalloc(sizeof(*fifo), GFP_KERNEL); + if (!fifo) + return -ENOMEM; + + dai->playback_dma_data = fifo; + + return 0; +} + +int aiu_fifo_dai_remove(struct snd_soc_dai *dai) +{ + kfree(dai->playback_dma_data); + + return 0; +} + diff --git a/sound/soc/meson/aiu-fifo.h b/sound/soc/meson/aiu-fifo.h new file mode 100644 index 000000000000..42ce266677cc --- /dev/null +++ b/sound/soc/meson/aiu-fifo.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */ +/* + * Copyright (c) 2020 BayLibre, SAS. + * Author: Jerome Brunet jbrunet@baylibre.com + */ + +#ifndef _MESON_AIU_FIFO_H +#define _MESON_AIU_FIFO_H + +struct snd_pcm_hardware; +struct snd_soc_component_driver; +struct snd_soc_dai_driver; +struct clk; +struct snd_pcm_ops; +struct snd_pcm_substream; +struct snd_soc_dai; +struct snd_pcm_hw_params; +struct platform_device; + +struct aiu_fifo { + struct snd_pcm_hardware *pcm; + unsigned int mem_offset; + unsigned int fifo_block; + struct clk *pclk; + int irq; +}; + +int aiu_fifo_dai_probe(struct snd_soc_dai *dai); +int aiu_fifo_dai_remove(struct snd_soc_dai *dai); + +snd_pcm_uframes_t aiu_fifo_pointer(struct snd_soc_component *component, + struct snd_pcm_substream *substream); + +int aiu_fifo_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai); +int aiu_fifo_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai); +int aiu_fifo_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai); +int aiu_fifo_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai); +int aiu_fifo_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai); +void aiu_fifo_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai); +int aiu_fifo_pcm_new(struct snd_soc_pcm_runtime *rtd, + struct snd_soc_dai *dai); + +#endif /* _MESON_AIU_FIFO_H */ diff --git a/sound/soc/meson/aiu.c b/sound/soc/meson/aiu.c new file mode 100644 index 000000000000..a62aced9b687 --- /dev/null +++ b/sound/soc/meson/aiu.c @@ -0,0 +1,348 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2020 BayLibre, SAS. +// Author: Jerome Brunet jbrunet@baylibre.com + +#include <linux/bitfield.h> +#include <linux/clk.h> +#include <linux/module.h> +#include <linux/of_platform.h> +#include <linux/regmap.h> +#include <linux/reset.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> + +#include <dt-bindings/sound/meson-aiu.h> +#include "aiu.h" +#include "aiu-fifo.h" + +#define AIU_I2S_MISC_958_SRC_SHIFT 3 + +static const char * const aiu_spdif_encode_sel_texts[] = { + "SPDIF", "I2S", +}; + +static SOC_ENUM_SINGLE_DECL(aiu_spdif_encode_sel_enum, AIU_I2S_MISC, + AIU_I2S_MISC_958_SRC_SHIFT, + aiu_spdif_encode_sel_texts); + +static const struct snd_kcontrol_new aiu_spdif_encode_mux = + SOC_DAPM_ENUM("SPDIF Buffer Src", aiu_spdif_encode_sel_enum); + +static const struct snd_soc_dapm_widget aiu_cpu_dapm_widgets[] = { + SND_SOC_DAPM_MUX("SPDIF SRC SEL", SND_SOC_NOPM, 0, 0, + &aiu_spdif_encode_mux), +}; + +static const struct snd_soc_dapm_route aiu_cpu_dapm_routes[] = { + { "I2S Encoder Playback", NULL, "I2S FIFO Playback" }, + { "SPDIF SRC SEL", "SPDIF", "SPDIF FIFO Playback" }, + { "SPDIF SRC SEL", "I2S", "I2S FIFO Playback" }, + { "SPDIF Encoder Playback", NULL, "SPDIF SRC SEL" }, +}; + +int aiu_of_xlate_dai_name(struct snd_soc_component *component, + struct of_phandle_args *args, + const char **dai_name, + unsigned int component_id) +{ + struct snd_soc_dai *dai; + int id; + + if (args->args_count != 2) + return -EINVAL; + + if (args->args[0] != component_id) + return -EINVAL; + + id = args->args[1]; + + if (id < 0 || id >= component->num_dai) + return -EINVAL; + + for_each_component_dais(component, dai) { + if (id == 0) + break; + id--; + } + + *dai_name = dai->driver->name; + + return 0; +} + +static int aiu_cpu_of_xlate_dai_name(struct snd_soc_component *component, + struct of_phandle_args *args, + const char **dai_name) +{ + return aiu_of_xlate_dai_name(component, args, dai_name, AIU_CPU); +} + +static int aiu_cpu_component_probe(struct snd_soc_component *component) +{ + struct aiu *aiu = snd_soc_component_get_drvdata(component); + + /* Required for the SPDIF Source control operation */ + return clk_prepare_enable(aiu->i2s.clks[PCLK].clk); +} + +static void aiu_cpu_component_remove(struct snd_soc_component *component) +{ + struct aiu *aiu = snd_soc_component_get_drvdata(component); + + clk_disable_unprepare(aiu->i2s.clks[PCLK].clk); +} + +static const struct snd_soc_component_driver aiu_cpu_component = { + .name = "AIU CPU", + .dapm_widgets = aiu_cpu_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(aiu_cpu_dapm_widgets), + .dapm_routes = aiu_cpu_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(aiu_cpu_dapm_routes), + .of_xlate_dai_name = aiu_cpu_of_xlate_dai_name, + .pointer = aiu_fifo_pointer, + .probe = aiu_cpu_component_probe, + .remove = aiu_cpu_component_remove, +}; + +static struct snd_soc_dai_driver aiu_cpu_dai_drv[] = { + [CPU_I2S_FIFO] = { + .name = "I2S FIFO", + .playback = { + .stream_name = "I2S FIFO Playback", + .channels_min = 2, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 5512, + .rate_max = 192000, + .formats = AIU_FORMATS, + }, + .ops = &aiu_fifo_i2s_dai_ops, + .pcm_new = aiu_fifo_pcm_new, + .probe = aiu_fifo_i2s_dai_probe, + .remove = aiu_fifo_dai_remove, + }, + [CPU_SPDIF_FIFO] = { + .name = "SPDIF FIFO", + .playback = { + .stream_name = "SPDIF FIFO Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 5512, + .rate_max = 192000, + .formats = AIU_FORMATS, + }, + .ops = &aiu_fifo_spdif_dai_ops, + .pcm_new = aiu_fifo_pcm_new, + .probe = aiu_fifo_spdif_dai_probe, + .remove = aiu_fifo_dai_remove, + }, + [CPU_I2S_ENCODER] = { + .name = "I2S Encoder", + .playback = { + .stream_name = "I2S Encoder Playback", + .channels_min = 2, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = AIU_FORMATS, + }, + .ops = &aiu_encoder_i2s_dai_ops, + }, + [CPU_SPDIF_ENCODER] = { + .name = "SPDIF Encoder", + .playback = { + .stream_name = "SPDIF Encoder Playback", + .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 = AIU_FORMATS, + }, + .ops = &aiu_encoder_spdif_dai_ops, + } +}; + +static const struct regmap_config aiu_regmap_cfg = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .max_register = 0x2ac, +}; + +static int aiu_clk_bulk_get(struct device *dev, + const char * const *ids, + unsigned int num, + struct aiu_interface *interface) +{ + struct clk_bulk_data *clks; + int i, ret; + + clks = devm_kcalloc(dev, num, sizeof(clks), GFP_KERNEL); + if (!clks) + return -ENOMEM; + + for (i = 0; i < num; i++) + clks[i].id = ids[i]; + + ret = devm_clk_bulk_get(dev, num, clks); + if (ret < 0) + return ret; + + interface->clks = clks; + interface->clk_num = num; + return 0; +} + +static const char * const aiu_i2s_ids[] = { + [PCLK] = "i2s_pclk", + [AOCLK] = "i2s_aoclk", + [MCLK] = "i2s_mclk", + [MIXER] = "i2s_mixer", +}; + +static const char * const aiu_spdif_ids[] = { + [PCLK] = "spdif_pclk", + [AOCLK] = "spdif_aoclk", + [MCLK] = "spdif_mclk_sel" +}; + +static int aiu_clk_get(struct device *dev) +{ + struct aiu *aiu = dev_get_drvdata(dev); + int ret; + + aiu->pclk = devm_clk_get(dev, "pclk"); + if (IS_ERR(aiu->pclk)) { + if (PTR_ERR(aiu->pclk) != -EPROBE_DEFER) + dev_err(dev, "Can't get the aiu pclk\n"); + return PTR_ERR(aiu->pclk); + } + + aiu->spdif_mclk = devm_clk_get(dev, "spdif_mclk"); + if (IS_ERR(aiu->spdif_mclk)) { + if (PTR_ERR(aiu->spdif_mclk) != -EPROBE_DEFER) + dev_err(dev, "Can't get the aiu spdif master clock\n"); + return PTR_ERR(aiu->spdif_mclk); + } + + ret = aiu_clk_bulk_get(dev, aiu_i2s_ids, ARRAY_SIZE(aiu_i2s_ids), + &aiu->i2s); + if (ret) { + if (ret != -EPROBE_DEFER) + dev_err(dev, "Can't get the i2s clocks\n"); + return ret; + } + + ret = aiu_clk_bulk_get(dev, aiu_spdif_ids, ARRAY_SIZE(aiu_spdif_ids), + &aiu->spdif); + if (ret) { + if (ret != -EPROBE_DEFER) + dev_err(dev, "Can't get the spdif clocks\n"); + return ret; + } + + ret = clk_prepare_enable(aiu->pclk); + if (ret) { + dev_err(dev, "peripheral clock enable failed\n"); + return ret; + } + + ret = devm_add_action_or_reset(dev, + (void(*)(void *))clk_disable_unprepare, + aiu->pclk); + if (ret) + dev_err(dev, "failed to add reset action on pclk"); + + return ret; +} + +static int aiu_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + void __iomem *regs; + struct regmap *map; + struct aiu *aiu; + int ret; + + aiu = devm_kzalloc(dev, sizeof(*aiu), GFP_KERNEL); + if (!aiu) + return -ENOMEM; + platform_set_drvdata(pdev, aiu); + + ret = device_reset(dev); + if (ret) { + if (ret != -EPROBE_DEFER) + dev_err(dev, "Failed to reset device\n"); + return ret; + } + + regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + map = devm_regmap_init_mmio(dev, regs, &aiu_regmap_cfg); + if (IS_ERR(map)) { + dev_err(dev, "failed to init regmap: %ld\n", + PTR_ERR(map)); + return PTR_ERR(map); + } + + aiu->i2s.irq = platform_get_irq_byname(pdev, "i2s"); + if (aiu->i2s.irq < 0) { + dev_err(dev, "Can't get i2s irq\n"); + return aiu->i2s.irq; + } + + aiu->spdif.irq = platform_get_irq_byname(pdev, "spdif"); + if (aiu->spdif.irq < 0) { + dev_err(dev, "Can't get spdif irq\n"); + return aiu->spdif.irq; + } + + ret = aiu_clk_get(dev); + if (ret) + return ret; + + /* Register the cpu component of the aiu */ + ret = snd_soc_register_component(dev, &aiu_cpu_component, + aiu_cpu_dai_drv, + ARRAY_SIZE(aiu_cpu_dai_drv)); + if (ret) + dev_err(dev, "Failed to register cpu component\n"); + + return ret; +} + +static int aiu_remove(struct platform_device *pdev) +{ + snd_soc_unregister_component(&pdev->dev); + + return 0; +} + +static const struct of_device_id aiu_of_match[] = { + { .compatible = "amlogic,aiu-gxbb", }, + { .compatible = "amlogic,aiu-gxl", }, + {} +}; +MODULE_DEVICE_TABLE(of, aiu_of_match); + +static struct platform_driver aiu_pdrv = { + .probe = aiu_probe, + .remove = aiu_remove, + .driver = { + .name = "meson-aiu", + .of_match_table = aiu_of_match, + }, +}; +module_platform_driver(aiu_pdrv); + +MODULE_DESCRIPTION("Meson AIU Driver"); +MODULE_AUTHOR("Jerome Brunet jbrunet@baylibre.com"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/meson/aiu.h b/sound/soc/meson/aiu.h new file mode 100644 index 000000000000..a3488027b9d5 --- /dev/null +++ b/sound/soc/meson/aiu.h @@ -0,0 +1,82 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */ +/* + * Copyright (c) 2018 BayLibre, SAS. + * Author: Jerome Brunet jbrunet@baylibre.com + */ + +#ifndef _MESON_AIU_H +#define _MESON_AIU_H + +struct clk; +struct clk_bulk_data; +struct device; +struct of_phandle_args; +struct snd_soc_component_driver; +struct snd_soc_dai; +struct snd_soc_dai_driver; +struct snd_soc_dai_ops; + +enum aiu_clk_ids { + PCLK = 0, + AOCLK, + MCLK, + MIXER +}; + +struct aiu_interface { + struct clk_bulk_data *clks; + unsigned int clk_num; + unsigned int irq; +}; + +struct aiu { + struct clk *pclk; + struct clk *spdif_mclk; + struct aiu_interface i2s; + struct aiu_interface spdif; +}; + +#define AIU_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S20_LE | \ + SNDRV_PCM_FMTBIT_S24_LE) + +int aiu_of_xlate_dai_name(struct snd_soc_component *component, + struct of_phandle_args *args, + const char **dai_name, + unsigned int component_id); + +int aiu_fifo_i2s_dai_probe(struct snd_soc_dai *dai); +int aiu_fifo_spdif_dai_probe(struct snd_soc_dai *dai); + +extern const struct snd_soc_dai_ops aiu_fifo_i2s_dai_ops; +extern const struct snd_soc_dai_ops aiu_fifo_spdif_dai_ops; +extern const struct snd_soc_dai_ops aiu_encoder_i2s_dai_ops; +extern const struct snd_soc_dai_ops aiu_encoder_spdif_dai_ops; + +#define AIU_IEC958_BPF 0x000 +#define AIU_958_MISC 0x010 +#define AIU_IEC958_DCU_FF_CTRL 0x01c +#define AIU_958_CHSTAT_L0 0x020 +#define AIU_958_CHSTAT_L1 0x024 +#define AIU_958_CTRL 0x028 +#define AIU_I2S_SOURCE_DESC 0x034 +#define AIU_I2S_DAC_CFG 0x040 +#define AIU_I2S_SYNC 0x044 +#define AIU_I2S_MISC 0x048 +#define AIU_RST_SOFT 0x054 +#define AIU_CLK_CTRL 0x058 +#define AIU_CLK_CTRL_MORE 0x064 +#define AIU_CODEC_DAC_LRCLK_CTRL 0x0a0 +#define AIU_HDMI_CLK_DATA_CTRL 0x0a8 +#define AIU_ACODEC_CTRL 0x0b0 +#define AIU_958_CHSTAT_R0 0x0c0 +#define AIU_958_CHSTAT_R1 0x0c4 +#define AIU_MEM_I2S_START 0x180 +#define AIU_MEM_I2S_MASKS 0x18c +#define AIU_MEM_I2S_CONTROL 0x190 +#define AIU_MEM_IEC958_START 0x194 +#define AIU_MEM_IEC958_CONTROL 0x1a4 +#define AIU_MEM_I2S_BUF_CNTL 0x1d8 +#define AIU_MEM_IEC958_BUF_CNTL 0x1fc + +#endif /* _MESON_AIU_H */

Add the codec to codec component which handles the routing between the audio producers (PCM and I2S) and the synopsys hdmi controller on the amlogic GX SoC family

Signed-off-by: Jerome Brunet jbrunet@baylibre.com --- sound/soc/meson/Kconfig | 2 + sound/soc/meson/Makefile | 1 + sound/soc/meson/aiu-codec-ctrl.c | 152 +++++++++++++++++++++++++++++++ sound/soc/meson/aiu.c | 34 ++++++- sound/soc/meson/aiu.h | 8 ++ 5 files changed, 196 insertions(+), 1 deletion(-) create mode 100644 sound/soc/meson/aiu-codec-ctrl.c

diff --git a/sound/soc/meson/Kconfig b/sound/soc/meson/Kconfig index ca269dedfc7f..19de97ae4ce9 100644 --- a/sound/soc/meson/Kconfig +++ b/sound/soc/meson/Kconfig @@ -4,7 +4,9 @@ menu "ASoC support for Amlogic platforms"

config SND_MESON_AIU tristate "Amlogic AIU" + select SND_MESON_CODEC_GLUE select SND_PCM_IEC958 + imply SND_SOC_HDMI_CODEC if DRM_MESON_DW_HDMI help Select Y or M to add support for the Audio output subsystem found in the Amlogic GX SoC family diff --git a/sound/soc/meson/Makefile b/sound/soc/meson/Makefile index a7b79d717288..3b21f648e322 100644 --- a/sound/soc/meson/Makefile +++ b/sound/soc/meson/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: (GPL-2.0 OR MIT)

snd-soc-meson-aiu-objs := aiu.o +snd-soc-meson-aiu-objs += aiu-codec-ctrl.o snd-soc-meson-aiu-objs += aiu-encoder-i2s.o snd-soc-meson-aiu-objs += aiu-encoder-spdif.o snd-soc-meson-aiu-objs += aiu-fifo.o diff --git a/sound/soc/meson/aiu-codec-ctrl.c b/sound/soc/meson/aiu-codec-ctrl.c new file mode 100644 index 000000000000..8646a953e3b3 --- /dev/null +++ b/sound/soc/meson/aiu-codec-ctrl.c @@ -0,0 +1,152 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2020 BayLibre, SAS. +// Author: Jerome Brunet jbrunet@baylibre.com + +#include <linux/bitfield.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> + +#include <dt-bindings/sound/meson-aiu.h> +#include "aiu.h" +#include "meson-codec-glue.h" + +#define CTRL_CLK_SEL GENMASK(1, 0) +#define CTRL_DATA_SEL_SHIFT 4 +#define CTRL_DATA_SEL (0x3 << CTRL_DATA_SEL_SHIFT) + +static const char * const aiu_codec_ctrl_mux_texts[] = { + "DISABLED", "PCM", "I2S", +}; + +static int aiu_codec_ctrl_mux_put_enum(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = + snd_soc_dapm_kcontrol_component(kcontrol); + struct snd_soc_dapm_context *dapm = + snd_soc_dapm_kcontrol_dapm(kcontrol); + struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; + unsigned int mux, changed; + + mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]); + changed = snd_soc_component_test_bits(component, e->reg, + CTRL_DATA_SEL, + FIELD_PREP(CTRL_DATA_SEL, mux)); + + if (!changed) + return 0; + + /* Force disconnect of the mux while updating */ + snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL); + + /* Reset the source first */ + snd_soc_component_update_bits(component, e->reg, + CTRL_CLK_SEL | + CTRL_DATA_SEL, + FIELD_PREP(CTRL_CLK_SEL, 0) | + FIELD_PREP(CTRL_DATA_SEL, 0)); + + /* Set the appropriate source */ + snd_soc_component_update_bits(component, e->reg, + CTRL_CLK_SEL | + CTRL_DATA_SEL, + FIELD_PREP(CTRL_CLK_SEL, mux) | + FIELD_PREP(CTRL_DATA_SEL, mux)); + + snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL); + + return 0; +} + +static SOC_ENUM_SINGLE_DECL(aiu_hdmi_ctrl_mux_enum, AIU_HDMI_CLK_DATA_CTRL, + CTRL_DATA_SEL_SHIFT, + aiu_codec_ctrl_mux_texts); + +static const struct snd_kcontrol_new aiu_hdmi_ctrl_mux = + SOC_DAPM_ENUM_EXT("HDMI Source", aiu_hdmi_ctrl_mux_enum, + snd_soc_dapm_get_enum_double, + aiu_codec_ctrl_mux_put_enum); + +static const struct snd_soc_dapm_widget aiu_hdmi_ctrl_widgets[] = { + SND_SOC_DAPM_MUX("HDMI CTRL SRC", SND_SOC_NOPM, 0, 0, + &aiu_hdmi_ctrl_mux), +}; + +static const struct snd_soc_dai_ops aiu_codec_ctrl_input_ops = { + .hw_params = meson_codec_glue_input_hw_params, + .set_fmt = meson_codec_glue_input_set_fmt, +}; + +static const struct snd_soc_dai_ops aiu_codec_ctrl_output_ops = { + .startup = meson_codec_glue_output_startup, +}; + +#define AIU_CODEC_CTRL_FORMATS \ + (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ + SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE) + +#define AIU_CODEC_CTRL_STREAM(xname, xsuffix) \ +{ \ + .stream_name = xname " " xsuffix, \ + .channels_min = 1, \ + .channels_max = 8, \ + .rate_min = 5512, \ + .rate_max = 192000, \ + .formats = AIU_CODEC_CTRL_FORMATS, \ +} + +#define AIU_CODEC_CTRL_INPUT(xname) { \ + .name = "CODEC CTRL " xname, \ + .playback = AIU_CODEC_CTRL_STREAM(xname, "Playback"), \ + .ops = &aiu_codec_ctrl_input_ops, \ + .probe = meson_codec_glue_input_dai_probe, \ + .remove = meson_codec_glue_input_dai_remove, \ +} + +#define AIU_CODEC_CTRL_OUTPUT(xname) { \ + .name = "CODEC CTRL " xname, \ + .capture = AIU_CODEC_CTRL_STREAM(xname, "Capture"), \ + .ops = &aiu_codec_ctrl_output_ops, \ +} + +static struct snd_soc_dai_driver aiu_hdmi_ctrl_dai_drv[] = { + [CTRL_I2S] = AIU_CODEC_CTRL_INPUT("HDMI I2S IN"), + [CTRL_PCM] = AIU_CODEC_CTRL_INPUT("HDMI PCM IN"), + [CTRL_OUT] = AIU_CODEC_CTRL_OUTPUT("HDMI OUT"), +}; + +static const struct snd_soc_dapm_route aiu_hdmi_ctrl_routes[] = { + { "HDMI CTRL SRC", "I2S", "HDMI I2S IN Playback" }, + { "HDMI CTRL SRC", "PCM", "HDMI PCM IN Playback" }, + { "HDMI OUT Capture", NULL, "HDMI CTRL SRC" }, +}; + +static int aiu_hdmi_of_xlate_dai_name(struct snd_soc_component *component, + struct of_phandle_args *args, + const char **dai_name) +{ + return aiu_of_xlate_dai_name(component, args, dai_name, AIU_HDMI); +} + +static const struct snd_soc_component_driver aiu_hdmi_ctrl_component = { + .name = "AIU HDMI Codec Control", + .dapm_widgets = aiu_hdmi_ctrl_widgets, + .num_dapm_widgets = ARRAY_SIZE(aiu_hdmi_ctrl_widgets), + .dapm_routes = aiu_hdmi_ctrl_routes, + .num_dapm_routes = ARRAY_SIZE(aiu_hdmi_ctrl_routes), + .of_xlate_dai_name = aiu_hdmi_of_xlate_dai_name, + .endianness = 1, + .non_legacy_dai_naming = 1, +}; + +int aiu_hdmi_ctrl_register_component(struct device *dev) +{ + return aiu_add_component(dev, &aiu_hdmi_ctrl_component, + aiu_hdmi_ctrl_dai_drv, + ARRAY_SIZE(aiu_hdmi_ctrl_dai_drv), + "hdmi"); +} + diff --git a/sound/soc/meson/aiu.c b/sound/soc/meson/aiu.c index a62aced9b687..b765dfb70726 100644 --- a/sound/soc/meson/aiu.c +++ b/sound/soc/meson/aiu.c @@ -71,6 +71,26 @@ int aiu_of_xlate_dai_name(struct snd_soc_component *component, return 0; }

+int aiu_add_component(struct device *dev, + const struct snd_soc_component_driver *component_driver, + struct snd_soc_dai_driver *dai_drv, + int num_dai, + const char *debugfs_prefix) +{ + struct snd_soc_component *component; + + component = devm_kzalloc(dev, sizeof(*component), GFP_KERNEL); + if (!component) + return -ENOMEM; + +#ifdef CONFIG_DEBUG_FS + component->debugfs_prefix = debugfs_prefix; +#endif + + return snd_soc_add_component(dev, component, component_driver, + dai_drv, num_dai); +} + static int aiu_cpu_of_xlate_dai_name(struct snd_soc_component *component, struct of_phandle_args *args, const char **dai_name) @@ -313,9 +333,21 @@ static int aiu_probe(struct platform_device *pdev) ret = snd_soc_register_component(dev, &aiu_cpu_component, aiu_cpu_dai_drv, ARRAY_SIZE(aiu_cpu_dai_drv)); - if (ret) + if (ret) { dev_err(dev, "Failed to register cpu component\n"); + return ret; + }

+ /* Register the hdmi codec control component */ + ret = aiu_hdmi_ctrl_register_component(dev); + if (ret) { + dev_err(dev, "Failed to register hdmi control component\n"); + goto err; + } + + return 0; +err: + snd_soc_unregister_component(dev); return ret; }

diff --git a/sound/soc/meson/aiu.h b/sound/soc/meson/aiu.h index a3488027b9d5..9242ab1ab64b 100644 --- a/sound/soc/meson/aiu.h +++ b/sound/soc/meson/aiu.h @@ -45,6 +45,14 @@ int aiu_of_xlate_dai_name(struct snd_soc_component *component, const char **dai_name, unsigned int component_id);

+int aiu_add_component(struct device *dev, + const struct snd_soc_component_driver *component_driver, + struct snd_soc_dai_driver *dai_drv, + int num_dai, + const char *debugfs_prefix); + +int aiu_hdmi_ctrl_register_component(struct device *dev); + int aiu_fifo_i2s_dai_probe(struct snd_soc_dai *dai); int aiu_fifo_spdif_dai_probe(struct snd_soc_dai *dai);