// SPDX-License-Identifier: GPL-2.0 // // Copyright (c) 2019 BayLibre, SAS. // Author: Jerome Brunet #include #include #include #include #include #include #include #include #include #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_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_SHIFT 1 #define CTRL0_SPDIF_SEL (0x1 << CTRL0_SPDIF_SEL_SHIFT) #define CTRL0_SPDIF_CLK_SEL BIT(0) static const char * const g12a_tohdmitx_i2s_mux_texts[] = { "I2S A", "I2S B", "I2S C", }; static int g12a_tohdmitx_i2s_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; if (ucontrol->value.enumerated.item[0] >= e->items) return -EINVAL; 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 */ snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL); snd_soc_component_update_bits(component, e->reg, CTRL0_I2S_DAT_SEL | CTRL0_I2S_LRCLK_SEL | CTRL0_I2S_BCLK_SEL, FIELD_PREP(CTRL0_I2S_DAT_SEL, mux) | FIELD_PREP(CTRL0_I2S_LRCLK_SEL, mux) | FIELD_PREP(CTRL0_I2S_BCLK_SEL, mux)); snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL); return 1; } 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, 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 int g12a_tohdmitx_spdif_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; if (ucontrol->value.enumerated.item[0] >= e->items) return -EINVAL; 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 */ snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL); snd_soc_component_update_bits(component, TOHDMITX_CTRL0, CTRL0_SPDIF_SEL | CTRL0_SPDIF_CLK_SEL, FIELD_PREP(CTRL0_SPDIF_SEL, mux) | FIELD_PREP(CTRL0_SPDIF_CLK_SEL, mux)); snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL); return 1; } 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, snd_soc_dapm_get_enum_double, g12a_tohdmitx_spdif_mux_put_enum); static const struct snd_kcontrol_new g12a_tohdmitx_out_enable = SOC_DAPM_SINGLE_AUTODISABLE("Switch", TOHDMITX_CTRL0, CTRL0_ENABLE_SHIFT, 1, 0); static const struct snd_soc_dapm_widget g12a_tohdmitx_widgets[] = { SND_SOC_DAPM_MUX("I2S SRC", SND_SOC_NOPM, 0, 0, &g12a_tohdmitx_i2s_mux), SND_SOC_DAPM_SWITCH("I2S OUT EN", SND_SOC_NOPM, 0, 0, &g12a_tohdmitx_out_enable), SND_SOC_DAPM_MUX("SPDIF SRC", SND_SOC_NOPM, 0, 0, &g12a_tohdmitx_spdif_mux), SND_SOC_DAPM_SWITCH("SPDIF OUT EN", SND_SOC_NOPM, 0, 0, &g12a_tohdmitx_out_enable), }; static const struct snd_soc_dai_ops g12a_tohdmitx_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 g12a_tohdmitx_output_ops = { .startup = meson_codec_glue_output_startup, }; #define TOHDMITX_SPDIF_FORMATS \ (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE) #define TOHDMITX_I2S_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 TOHDMITX_STREAM(xname, xsuffix, xfmt, xchmax) \ { \ .stream_name = xname " " xsuffix, \ .channels_min = 1, \ .channels_max = (xchmax), \ .rate_min = 8000, \ .rate_max = 192000, \ .formats = (xfmt), \ } #define TOHDMITX_IN(xname, xid, xfmt, xchmax) { \ .name = xname, \ .id = (xid), \ .playback = TOHDMITX_STREAM(xname, "Playback", xfmt, xchmax), \ .ops = &g12a_tohdmitx_input_ops, \ .probe = meson_codec_glue_input_dai_probe, \ .remove = meson_codec_glue_input_dai_remove, \ } #define TOHDMITX_OUT(xname, xid, xfmt, xchmax) { \ .name = xname, \ .id = (xid), \ .capture = TOHDMITX_STREAM(xname, "Capture", xfmt, xchmax), \ .ops = &g12a_tohdmitx_output_ops, \ } static struct snd_soc_dai_driver g12a_tohdmitx_dai_drv[] = { TOHDMITX_IN("I2S IN A", TOHDMITX_I2S_IN_A, TOHDMITX_I2S_FORMATS, 8), TOHDMITX_IN("I2S IN B", TOHDMITX_I2S_IN_B, TOHDMITX_I2S_FORMATS, 8), TOHDMITX_IN("I2S IN C", TOHDMITX_I2S_IN_C, TOHDMITX_I2S_FORMATS, 8), TOHDMITX_OUT("I2S OUT", TOHDMITX_I2S_OUT, TOHDMITX_I2S_FORMATS, 8), TOHDMITX_IN("SPDIF IN A", TOHDMITX_SPDIF_IN_A, TOHDMITX_SPDIF_FORMATS, 2), TOHDMITX_IN("SPDIF IN B", TOHDMITX_SPDIF_IN_B, TOHDMITX_SPDIF_FORMATS, 2), TOHDMITX_OUT("SPDIF OUT", TOHDMITX_SPDIF_OUT, TOHDMITX_SPDIF_FORMATS, 2), }; static int g12a_tohdmi_component_probe(struct snd_soc_component *c) { /* Initialize the static clock parameters */ return snd_soc_component_write(c, TOHDMITX_CTRL0, CTRL0_I2S_BLK_CAP_INV | CTRL0_SPDIF_CLK_CAP_INV); } static const struct snd_soc_dapm_route g12a_tohdmitx_routes[] = { { "I2S SRC", "I2S A", "I2S IN A Playback" }, { "I2S SRC", "I2S B", "I2S IN B Playback" }, { "I2S SRC", "I2S C", "I2S IN C Playback" }, { "I2S OUT EN", "Switch", "I2S SRC" }, { "I2S OUT Capture", NULL, "I2S OUT EN" }, { "SPDIF SRC", "SPDIF A", "SPDIF IN A Playback" }, { "SPDIF SRC", "SPDIF B", "SPDIF IN B Playback" }, { "SPDIF OUT EN", "Switch", "SPDIF SRC" }, { "SPDIF OUT Capture", NULL, "SPDIF OUT EN" }, }; static const struct snd_soc_component_driver g12a_tohdmitx_component_drv = { .probe = g12a_tohdmi_component_probe, .dapm_widgets = g12a_tohdmitx_widgets, .num_dapm_widgets = ARRAY_SIZE(g12a_tohdmitx_widgets), .dapm_routes = g12a_tohdmitx_routes, .num_dapm_routes = ARRAY_SIZE(g12a_tohdmitx_routes), .endianness = 1, .non_legacy_dai_naming = 1, }; static const struct regmap_config g12a_tohdmitx_regmap_cfg = { .reg_bits = 32, .val_bits = 32, .reg_stride = 4, }; static const struct of_device_id g12a_tohdmitx_of_match[] = { { .compatible = "amlogic,g12a-tohdmitx", }, {} }; MODULE_DEVICE_TABLE(of, g12a_tohdmitx_of_match); static int g12a_tohdmitx_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; void __iomem *regs; struct regmap *map; int ret; ret = device_reset(dev); if (ret) return ret; regs = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(regs)) return PTR_ERR(regs); map = devm_regmap_init_mmio(dev, regs, &g12a_tohdmitx_regmap_cfg); if (IS_ERR(map)) { dev_err(dev, "failed to init regmap: %ld\n", PTR_ERR(map)); return PTR_ERR(map); } return devm_snd_soc_register_component(dev, &g12a_tohdmitx_component_drv, g12a_tohdmitx_dai_drv, ARRAY_SIZE(g12a_tohdmitx_dai_drv)); } static struct platform_driver g12a_tohdmitx_pdrv = { .driver = { .name = G12A_TOHDMITX_DRV_NAME, .of_match_table = g12a_tohdmitx_of_match, }, .probe = g12a_tohdmitx_probe, }; module_platform_driver(g12a_tohdmitx_pdrv); MODULE_AUTHOR("Jerome Brunet "); MODULE_DESCRIPTION("Amlogic G12a To HDMI Tx Control Codec Driver"); MODULE_LICENSE("GPL v2");