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1// SPDX-License-Identifier: GPL-2.02//3// Copyright (c) 2020 BayLibre, SAS.4// Author: Jerome Brunet <jbrunet@baylibre.com>5 6#include <linux/bitfield.h>7#include <sound/pcm_params.h>8#include <sound/soc.h>9#include <sound/soc-dai.h>10 11#include <dt-bindings/sound/meson-aiu.h>12#include "aiu.h"13#include "meson-codec-glue.h"14 15#define CTRL_CLK_SEL GENMASK(1, 0)16#define CTRL_DATA_SEL_SHIFT 417#define CTRL_DATA_SEL (0x3 << CTRL_DATA_SEL_SHIFT)18 19static const char * const aiu_codec_ctrl_mux_texts[] = {20 "DISABLED", "PCM", "I2S",21};22 23static int aiu_codec_ctrl_mux_put_enum(struct snd_kcontrol *kcontrol,24 struct snd_ctl_elem_value *ucontrol)25{26 struct snd_soc_component *component =27 snd_soc_dapm_kcontrol_component(kcontrol);28 struct snd_soc_dapm_context *dapm =29 snd_soc_dapm_kcontrol_dapm(kcontrol);30 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;31 unsigned int mux, changed;32 33 mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]);34 changed = snd_soc_component_test_bits(component, e->reg,35 CTRL_DATA_SEL,36 FIELD_PREP(CTRL_DATA_SEL, mux));37 38 if (!changed)39 return 0;40 41 /* Force disconnect of the mux while updating */42 snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);43 44 /* Reset the source first */45 snd_soc_component_update_bits(component, e->reg,46 CTRL_CLK_SEL |47 CTRL_DATA_SEL,48 FIELD_PREP(CTRL_CLK_SEL, 0) |49 FIELD_PREP(CTRL_DATA_SEL, 0));50 51 /* Set the appropriate source */52 snd_soc_component_update_bits(component, e->reg,53 CTRL_CLK_SEL |54 CTRL_DATA_SEL,55 FIELD_PREP(CTRL_CLK_SEL, mux) |56 FIELD_PREP(CTRL_DATA_SEL, mux));57 58 snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);59 60 return 1;61}62 63static SOC_ENUM_SINGLE_DECL(aiu_hdmi_ctrl_mux_enum, AIU_HDMI_CLK_DATA_CTRL,64 CTRL_DATA_SEL_SHIFT,65 aiu_codec_ctrl_mux_texts);66 67static const struct snd_kcontrol_new aiu_hdmi_ctrl_mux =68 SOC_DAPM_ENUM_EXT("HDMI Source", aiu_hdmi_ctrl_mux_enum,69 snd_soc_dapm_get_enum_double,70 aiu_codec_ctrl_mux_put_enum);71 72static const struct snd_soc_dapm_widget aiu_hdmi_ctrl_widgets[] = {73 SND_SOC_DAPM_MUX("HDMI CTRL SRC", SND_SOC_NOPM, 0, 0,74 &aiu_hdmi_ctrl_mux),75};76 77static const struct snd_soc_dai_ops aiu_codec_ctrl_input_ops = {78 .probe = meson_codec_glue_input_dai_probe,79 .remove = meson_codec_glue_input_dai_remove,80 .hw_params = meson_codec_glue_input_hw_params,81 .set_fmt = meson_codec_glue_input_set_fmt,82};83 84static const struct snd_soc_dai_ops aiu_codec_ctrl_output_ops = {85 .startup = meson_codec_glue_output_startup,86};87 88#define AIU_CODEC_CTRL_FORMATS \89 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \90 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE | \91 SNDRV_PCM_FMTBIT_S32_LE)92 93#define AIU_CODEC_CTRL_STREAM(xname, xsuffix) \94{ \95 .stream_name = xname " " xsuffix, \96 .channels_min = 1, \97 .channels_max = 8, \98 .rate_min = 5512, \99 .rate_max = 192000, \100 .formats = AIU_CODEC_CTRL_FORMATS, \101}102 103#define AIU_CODEC_CTRL_INPUT(xname) { \104 .name = "CODEC CTRL " xname, \105 .playback = AIU_CODEC_CTRL_STREAM(xname, "Playback"), \106 .ops = &aiu_codec_ctrl_input_ops, \107}108 109#define AIU_CODEC_CTRL_OUTPUT(xname) { \110 .name = "CODEC CTRL " xname, \111 .capture = AIU_CODEC_CTRL_STREAM(xname, "Capture"), \112 .ops = &aiu_codec_ctrl_output_ops, \113}114 115static struct snd_soc_dai_driver aiu_hdmi_ctrl_dai_drv[] = {116 [CTRL_I2S] = AIU_CODEC_CTRL_INPUT("HDMI I2S IN"),117 [CTRL_PCM] = AIU_CODEC_CTRL_INPUT("HDMI PCM IN"),118 [CTRL_OUT] = AIU_CODEC_CTRL_OUTPUT("HDMI OUT"),119};120 121static const struct snd_soc_dapm_route aiu_hdmi_ctrl_routes[] = {122 { "HDMI CTRL SRC", "I2S", "HDMI I2S IN Playback" },123 { "HDMI CTRL SRC", "PCM", "HDMI PCM IN Playback" },124 { "HDMI OUT Capture", NULL, "HDMI CTRL SRC" },125};126 127static int aiu_hdmi_of_xlate_dai_name(struct snd_soc_component *component,128 const struct of_phandle_args *args,129 const char **dai_name)130{131 return aiu_of_xlate_dai_name(component, args, dai_name, AIU_HDMI);132}133 134static const struct snd_soc_component_driver aiu_hdmi_ctrl_component = {135 .name = "AIU HDMI Codec Control",136 .dapm_widgets = aiu_hdmi_ctrl_widgets,137 .num_dapm_widgets = ARRAY_SIZE(aiu_hdmi_ctrl_widgets),138 .dapm_routes = aiu_hdmi_ctrl_routes,139 .num_dapm_routes = ARRAY_SIZE(aiu_hdmi_ctrl_routes),140 .of_xlate_dai_name = aiu_hdmi_of_xlate_dai_name,141 .endianness = 1,142#ifdef CONFIG_DEBUG_FS143 .debugfs_prefix = "hdmi",144#endif145};146 147int aiu_hdmi_ctrl_register_component(struct device *dev)148{149 return snd_soc_register_component(dev, &aiu_hdmi_ctrl_component,150 aiu_hdmi_ctrl_dai_drv,151 ARRAY_SIZE(aiu_hdmi_ctrl_dai_drv));152}153 154