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