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282 lines
8.7 KiB
282 lines
8.7 KiB
// SPDX-License-Identifier: GPL-2.0 |
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// |
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// Copyright (c) 2019 BayLibre, SAS. |
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// Author: Jerome Brunet <[email protected]> |
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#include <linux/bitfield.h> |
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#include <linux/clk.h> |
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#include <linux/module.h> |
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#include <sound/pcm_params.h> |
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#include <linux/regmap.h> |
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#include <linux/reset.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-g12a-tohdmitx.h> |
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#include "meson-codec-glue.h" |
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#define G12A_TOHDMITX_DRV_NAME "g12a-tohdmitx" |
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#define TOHDMITX_CTRL0 0x0 |
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#define CTRL0_ENABLE_SHIFT 31 |
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#define CTRL0_I2S_DAT_SEL_SHIFT 12 |
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#define CTRL0_I2S_DAT_SEL (0x3 << CTRL0_I2S_DAT_SEL_SHIFT) |
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#define CTRL0_I2S_LRCLK_SEL GENMASK(9, 8) |
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#define CTRL0_I2S_BLK_CAP_INV BIT(7) |
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#define CTRL0_I2S_BCLK_O_INV BIT(6) |
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#define CTRL0_I2S_BCLK_SEL GENMASK(5, 4) |
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#define CTRL0_SPDIF_CLK_CAP_INV BIT(3) |
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#define CTRL0_SPDIF_CLK_O_INV BIT(2) |
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#define CTRL0_SPDIF_SEL_SHIFT 1 |
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#define CTRL0_SPDIF_SEL (0x1 << CTRL0_SPDIF_SEL_SHIFT) |
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#define CTRL0_SPDIF_CLK_SEL BIT(0) |
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static const char * const g12a_tohdmitx_i2s_mux_texts[] = { |
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"I2S A", "I2S B", "I2S C", |
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}; |
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static int g12a_tohdmitx_i2s_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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CTRL0_I2S_DAT_SEL, |
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FIELD_PREP(CTRL0_I2S_DAT_SEL, |
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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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snd_soc_component_update_bits(component, e->reg, |
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CTRL0_I2S_DAT_SEL | |
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CTRL0_I2S_LRCLK_SEL | |
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CTRL0_I2S_BCLK_SEL, |
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FIELD_PREP(CTRL0_I2S_DAT_SEL, mux) | |
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FIELD_PREP(CTRL0_I2S_LRCLK_SEL, mux) | |
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FIELD_PREP(CTRL0_I2S_BCLK_SEL, mux)); |
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snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL); |
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return 0; |
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} |
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static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_i2s_mux_enum, TOHDMITX_CTRL0, |
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CTRL0_I2S_DAT_SEL_SHIFT, |
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g12a_tohdmitx_i2s_mux_texts); |
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static const struct snd_kcontrol_new g12a_tohdmitx_i2s_mux = |
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SOC_DAPM_ENUM_EXT("I2S Source", g12a_tohdmitx_i2s_mux_enum, |
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snd_soc_dapm_get_enum_double, |
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g12a_tohdmitx_i2s_mux_put_enum); |
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static const char * const g12a_tohdmitx_spdif_mux_texts[] = { |
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"SPDIF A", "SPDIF B", |
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}; |
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static int g12a_tohdmitx_spdif_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, TOHDMITX_CTRL0, |
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CTRL0_SPDIF_SEL, |
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FIELD_PREP(CTRL0_SPDIF_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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snd_soc_component_update_bits(component, TOHDMITX_CTRL0, |
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CTRL0_SPDIF_SEL | |
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CTRL0_SPDIF_CLK_SEL, |
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FIELD_PREP(CTRL0_SPDIF_SEL, mux) | |
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FIELD_PREP(CTRL0_SPDIF_CLK_SEL, mux)); |
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snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL); |
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return 0; |
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} |
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static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_spdif_mux_enum, TOHDMITX_CTRL0, |
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CTRL0_SPDIF_SEL_SHIFT, |
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g12a_tohdmitx_spdif_mux_texts); |
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static const struct snd_kcontrol_new g12a_tohdmitx_spdif_mux = |
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SOC_DAPM_ENUM_EXT("SPDIF Source", g12a_tohdmitx_spdif_mux_enum, |
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snd_soc_dapm_get_enum_double, |
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g12a_tohdmitx_spdif_mux_put_enum); |
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static const struct snd_kcontrol_new g12a_tohdmitx_out_enable = |
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SOC_DAPM_SINGLE_AUTODISABLE("Switch", TOHDMITX_CTRL0, |
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CTRL0_ENABLE_SHIFT, 1, 0); |
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static const struct snd_soc_dapm_widget g12a_tohdmitx_widgets[] = { |
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SND_SOC_DAPM_MUX("I2S SRC", SND_SOC_NOPM, 0, 0, |
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&g12a_tohdmitx_i2s_mux), |
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SND_SOC_DAPM_SWITCH("I2S OUT EN", SND_SOC_NOPM, 0, 0, |
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&g12a_tohdmitx_out_enable), |
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SND_SOC_DAPM_MUX("SPDIF SRC", SND_SOC_NOPM, 0, 0, |
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&g12a_tohdmitx_spdif_mux), |
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SND_SOC_DAPM_SWITCH("SPDIF OUT EN", SND_SOC_NOPM, 0, 0, |
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&g12a_tohdmitx_out_enable), |
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}; |
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static const struct snd_soc_dai_ops g12a_tohdmitx_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 g12a_tohdmitx_output_ops = { |
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.startup = meson_codec_glue_output_startup, |
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}; |
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#define TOHDMITX_SPDIF_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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#define TOHDMITX_I2S_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 TOHDMITX_STREAM(xname, xsuffix, xfmt, xchmax) \ |
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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 = (xchmax), \ |
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.rate_min = 8000, \ |
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.rate_max = 192000, \ |
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.formats = (xfmt), \ |
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} |
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#define TOHDMITX_IN(xname, xid, xfmt, xchmax) { \ |
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.name = xname, \ |
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.id = (xid), \ |
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.playback = TOHDMITX_STREAM(xname, "Playback", xfmt, xchmax), \ |
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.ops = &g12a_tohdmitx_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 TOHDMITX_OUT(xname, xid, xfmt, xchmax) { \ |
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.name = xname, \ |
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.id = (xid), \ |
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.capture = TOHDMITX_STREAM(xname, "Capture", xfmt, xchmax), \ |
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.ops = &g12a_tohdmitx_output_ops, \ |
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} |
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static struct snd_soc_dai_driver g12a_tohdmitx_dai_drv[] = { |
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TOHDMITX_IN("I2S IN A", TOHDMITX_I2S_IN_A, |
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TOHDMITX_I2S_FORMATS, 8), |
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TOHDMITX_IN("I2S IN B", TOHDMITX_I2S_IN_B, |
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TOHDMITX_I2S_FORMATS, 8), |
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TOHDMITX_IN("I2S IN C", TOHDMITX_I2S_IN_C, |
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TOHDMITX_I2S_FORMATS, 8), |
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TOHDMITX_OUT("I2S OUT", TOHDMITX_I2S_OUT, |
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TOHDMITX_I2S_FORMATS, 8), |
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TOHDMITX_IN("SPDIF IN A", TOHDMITX_SPDIF_IN_A, |
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TOHDMITX_SPDIF_FORMATS, 2), |
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TOHDMITX_IN("SPDIF IN B", TOHDMITX_SPDIF_IN_B, |
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TOHDMITX_SPDIF_FORMATS, 2), |
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TOHDMITX_OUT("SPDIF OUT", TOHDMITX_SPDIF_OUT, |
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TOHDMITX_SPDIF_FORMATS, 2), |
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}; |
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static int g12a_tohdmi_component_probe(struct snd_soc_component *c) |
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{ |
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/* Initialize the static clock parameters */ |
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return snd_soc_component_write(c, TOHDMITX_CTRL0, |
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CTRL0_I2S_BLK_CAP_INV | CTRL0_SPDIF_CLK_CAP_INV); |
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} |
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static const struct snd_soc_dapm_route g12a_tohdmitx_routes[] = { |
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{ "I2S SRC", "I2S A", "I2S IN A Playback" }, |
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{ "I2S SRC", "I2S B", "I2S IN B Playback" }, |
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{ "I2S SRC", "I2S C", "I2S IN C Playback" }, |
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{ "I2S OUT EN", "Switch", "I2S SRC" }, |
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{ "I2S OUT Capture", NULL, "I2S OUT EN" }, |
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{ "SPDIF SRC", "SPDIF A", "SPDIF IN A Playback" }, |
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{ "SPDIF SRC", "SPDIF B", "SPDIF IN B Playback" }, |
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{ "SPDIF OUT EN", "Switch", "SPDIF SRC" }, |
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{ "SPDIF OUT Capture", NULL, "SPDIF OUT EN" }, |
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}; |
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static const struct snd_soc_component_driver g12a_tohdmitx_component_drv = { |
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.probe = g12a_tohdmi_component_probe, |
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.dapm_widgets = g12a_tohdmitx_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(g12a_tohdmitx_widgets), |
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.dapm_routes = g12a_tohdmitx_routes, |
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.num_dapm_routes = ARRAY_SIZE(g12a_tohdmitx_routes), |
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.endianness = 1, |
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.non_legacy_dai_naming = 1, |
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}; |
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static const struct regmap_config g12a_tohdmitx_regmap_cfg = { |
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.reg_bits = 32, |
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.val_bits = 32, |
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.reg_stride = 4, |
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}; |
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static const struct of_device_id g12a_tohdmitx_of_match[] = { |
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{ .compatible = "amlogic,g12a-tohdmitx", }, |
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{} |
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}; |
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MODULE_DEVICE_TABLE(of, g12a_tohdmitx_of_match); |
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static int g12a_tohdmitx_probe(struct platform_device *pdev) |
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{ |
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struct device *dev = &pdev->dev; |
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void __iomem *regs; |
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struct regmap *map; |
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int ret; |
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ret = device_reset(dev); |
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if (ret) |
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return ret; |
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regs = devm_platform_ioremap_resource(pdev, 0); |
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if (IS_ERR(regs)) |
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return PTR_ERR(regs); |
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map = devm_regmap_init_mmio(dev, regs, &g12a_tohdmitx_regmap_cfg); |
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if (IS_ERR(map)) { |
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dev_err(dev, "failed to init regmap: %ld\n", |
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PTR_ERR(map)); |
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return PTR_ERR(map); |
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} |
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return devm_snd_soc_register_component(dev, |
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&g12a_tohdmitx_component_drv, g12a_tohdmitx_dai_drv, |
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ARRAY_SIZE(g12a_tohdmitx_dai_drv)); |
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} |
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static struct platform_driver g12a_tohdmitx_pdrv = { |
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.driver = { |
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.name = G12A_TOHDMITX_DRV_NAME, |
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.of_match_table = g12a_tohdmitx_of_match, |
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}, |
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.probe = g12a_tohdmitx_probe, |
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}; |
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module_platform_driver(g12a_tohdmitx_pdrv); |
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MODULE_AUTHOR("Jerome Brunet <[email protected]>"); |
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MODULE_DESCRIPTION("Amlogic G12a To HDMI Tx Control Codec Driver"); |
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MODULE_LICENSE("GPL v2");
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