| // SPDX-License-Identifier: (GPL-2.0 OR MIT) |
| // |
| // Copyright (c) 2018 BayLibre, SAS. |
| // Author: Jerome Brunet <jbrunet@baylibre.com> |
| |
| #include <linux/module.h> |
| #include <linux/of_platform.h> |
| #include <linux/regmap.h> |
| #include <sound/soc.h> |
| #include <sound/soc-dai.h> |
| |
| #include "axg-tdm-formatter.h" |
| |
| #define TDMOUT_CTRL0 0x00 |
| #define TDMOUT_CTRL0_BITNUM_MASK GENMASK(4, 0) |
| #define TDMOUT_CTRL0_BITNUM(x) ((x) << 0) |
| #define TDMOUT_CTRL0_SLOTNUM_MASK GENMASK(9, 5) |
| #define TDMOUT_CTRL0_SLOTNUM(x) ((x) << 5) |
| #define TDMOUT_CTRL0_INIT_BITNUM_MASK GENMASK(19, 15) |
| #define TDMOUT_CTRL0_INIT_BITNUM(x) ((x) << 15) |
| #define TDMOUT_CTRL0_ENABLE BIT(31) |
| #define TDMOUT_CTRL0_RST_OUT BIT(29) |
| #define TDMOUT_CTRL0_RST_IN BIT(28) |
| #define TDMOUT_CTRL1 0x04 |
| #define TDMOUT_CTRL1_TYPE_MASK GENMASK(6, 4) |
| #define TDMOUT_CTRL1_TYPE(x) ((x) << 4) |
| #define SM1_TDMOUT_CTRL1_GAIN_EN 7 |
| #define TDMOUT_CTRL1_MSB_POS_MASK GENMASK(12, 8) |
| #define TDMOUT_CTRL1_MSB_POS(x) ((x) << 8) |
| #define TDMOUT_CTRL1_SEL_SHIFT 24 |
| #define TDMOUT_CTRL1_GAIN_EN 26 |
| #define TDMOUT_CTRL1_WS_INV BIT(28) |
| #define TDMOUT_SWAP 0x08 |
| #define TDMOUT_MASK0 0x0c |
| #define TDMOUT_MASK1 0x10 |
| #define TDMOUT_MASK2 0x14 |
| #define TDMOUT_MASK3 0x18 |
| #define TDMOUT_STAT 0x1c |
| #define TDMOUT_GAIN0 0x20 |
| #define TDMOUT_GAIN1 0x24 |
| #define TDMOUT_MUTE_VAL 0x28 |
| #define TDMOUT_MUTE0 0x2c |
| #define TDMOUT_MUTE1 0x30 |
| #define TDMOUT_MUTE2 0x34 |
| #define TDMOUT_MUTE3 0x38 |
| #define TDMOUT_MASK_VAL 0x3c |
| |
| static const struct regmap_config axg_tdmout_regmap_cfg = { |
| .reg_bits = 32, |
| .val_bits = 32, |
| .reg_stride = 4, |
| .max_register = TDMOUT_MASK_VAL, |
| }; |
| |
| static struct snd_soc_dai * |
| axg_tdmout_get_be(struct snd_soc_dapm_widget *w) |
| { |
| struct snd_soc_dapm_path *p = NULL; |
| struct snd_soc_dai *be; |
| |
| snd_soc_dapm_widget_for_each_sink_path(w, p) { |
| if (!p->connect) |
| continue; |
| |
| if (p->sink->id == snd_soc_dapm_dai_in) |
| return (struct snd_soc_dai *)p->sink->priv; |
| |
| be = axg_tdmout_get_be(p->sink); |
| if (be) |
| return be; |
| } |
| |
| return NULL; |
| } |
| |
| static struct axg_tdm_stream * |
| axg_tdmout_get_tdm_stream(struct snd_soc_dapm_widget *w) |
| { |
| struct snd_soc_dai *be = axg_tdmout_get_be(w); |
| |
| if (!be) |
| return NULL; |
| |
| return be->playback_dma_data; |
| } |
| |
| static void axg_tdmout_enable(struct regmap *map) |
| { |
| /* Apply both reset */ |
| regmap_update_bits(map, TDMOUT_CTRL0, |
| TDMOUT_CTRL0_RST_OUT | TDMOUT_CTRL0_RST_IN, 0); |
| |
| /* Clear out reset before in reset */ |
| regmap_update_bits(map, TDMOUT_CTRL0, |
| TDMOUT_CTRL0_RST_OUT, TDMOUT_CTRL0_RST_OUT); |
| regmap_update_bits(map, TDMOUT_CTRL0, |
| TDMOUT_CTRL0_RST_IN, TDMOUT_CTRL0_RST_IN); |
| |
| /* Actually enable tdmout */ |
| regmap_update_bits(map, TDMOUT_CTRL0, |
| TDMOUT_CTRL0_ENABLE, TDMOUT_CTRL0_ENABLE); |
| } |
| |
| static void axg_tdmout_disable(struct regmap *map) |
| { |
| regmap_update_bits(map, TDMOUT_CTRL0, TDMOUT_CTRL0_ENABLE, 0); |
| } |
| |
| static int axg_tdmout_prepare(struct regmap *map, |
| const struct axg_tdm_formatter_hw *quirks, |
| struct axg_tdm_stream *ts) |
| { |
| unsigned int val, skew = quirks->skew_offset; |
| |
| /* Set the stream skew */ |
| switch (ts->iface->fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| case SND_SOC_DAIFMT_I2S: |
| case SND_SOC_DAIFMT_DSP_A: |
| break; |
| |
| case SND_SOC_DAIFMT_LEFT_J: |
| case SND_SOC_DAIFMT_DSP_B: |
| skew += 1; |
| break; |
| |
| default: |
| pr_err("Unsupported format: %u\n", |
| ts->iface->fmt & SND_SOC_DAIFMT_FORMAT_MASK); |
| return -EINVAL; |
| } |
| |
| val = TDMOUT_CTRL0_INIT_BITNUM(skew); |
| |
| /* Set the slot width */ |
| val |= TDMOUT_CTRL0_BITNUM(ts->iface->slot_width - 1); |
| |
| /* Set the slot number */ |
| val |= TDMOUT_CTRL0_SLOTNUM(ts->iface->slots - 1); |
| |
| regmap_update_bits(map, TDMOUT_CTRL0, |
| TDMOUT_CTRL0_INIT_BITNUM_MASK | |
| TDMOUT_CTRL0_BITNUM_MASK | |
| TDMOUT_CTRL0_SLOTNUM_MASK, val); |
| |
| /* Set the sample width */ |
| val = TDMOUT_CTRL1_MSB_POS(ts->width - 1); |
| |
| /* FIFO data are arranged in chunks of 64bits */ |
| switch (ts->physical_width) { |
| case 8: |
| /* 8 samples of 8 bits */ |
| val |= TDMOUT_CTRL1_TYPE(0); |
| break; |
| case 16: |
| /* 4 samples of 16 bits - right justified */ |
| val |= TDMOUT_CTRL1_TYPE(2); |
| break; |
| case 32: |
| /* 2 samples of 32 bits - right justified */ |
| val |= TDMOUT_CTRL1_TYPE(4); |
| break; |
| default: |
| pr_err("Unsupported physical width: %u\n", |
| ts->physical_width); |
| return -EINVAL; |
| } |
| |
| /* If the sample clock is inverted, invert it back for the formatter */ |
| if (axg_tdm_lrclk_invert(ts->iface->fmt)) |
| val |= TDMOUT_CTRL1_WS_INV; |
| |
| regmap_update_bits(map, TDMOUT_CTRL1, |
| (TDMOUT_CTRL1_TYPE_MASK | TDMOUT_CTRL1_MSB_POS_MASK | |
| TDMOUT_CTRL1_WS_INV), val); |
| |
| /* Set static swap mask configuration */ |
| regmap_write(map, TDMOUT_SWAP, 0x76543210); |
| |
| return axg_tdm_formatter_set_channel_masks(map, ts, TDMOUT_MASK0); |
| } |
| |
| static const struct snd_kcontrol_new axg_tdmout_controls[] = { |
| SOC_DOUBLE("Lane 0 Volume", TDMOUT_GAIN0, 0, 8, 255, 0), |
| SOC_DOUBLE("Lane 1 Volume", TDMOUT_GAIN0, 16, 24, 255, 0), |
| SOC_DOUBLE("Lane 2 Volume", TDMOUT_GAIN1, 0, 8, 255, 0), |
| SOC_DOUBLE("Lane 3 Volume", TDMOUT_GAIN1, 16, 24, 255, 0), |
| SOC_SINGLE("Gain Enable Switch", TDMOUT_CTRL1, |
| TDMOUT_CTRL1_GAIN_EN, 1, 0), |
| }; |
| |
| static const char * const axg_tdmout_sel_texts[] = { |
| "IN 0", "IN 1", "IN 2", |
| }; |
| |
| static SOC_ENUM_SINGLE_DECL(axg_tdmout_sel_enum, TDMOUT_CTRL1, |
| TDMOUT_CTRL1_SEL_SHIFT, axg_tdmout_sel_texts); |
| |
| static const struct snd_kcontrol_new axg_tdmout_in_mux = |
| SOC_DAPM_ENUM("Input Source", axg_tdmout_sel_enum); |
| |
| static const struct snd_soc_dapm_widget axg_tdmout_dapm_widgets[] = { |
| SND_SOC_DAPM_AIF_IN("IN 0", NULL, 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_AIF_IN("IN 1", NULL, 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_AIF_IN("IN 2", NULL, 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_MUX("SRC SEL", SND_SOC_NOPM, 0, 0, &axg_tdmout_in_mux), |
| SND_SOC_DAPM_PGA_E("ENC", SND_SOC_NOPM, 0, 0, NULL, 0, |
| axg_tdm_formatter_event, |
| (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD)), |
| SND_SOC_DAPM_AIF_OUT("OUT", NULL, 0, SND_SOC_NOPM, 0, 0), |
| }; |
| |
| static const struct snd_soc_dapm_route axg_tdmout_dapm_routes[] = { |
| { "SRC SEL", "IN 0", "IN 0" }, |
| { "SRC SEL", "IN 1", "IN 1" }, |
| { "SRC SEL", "IN 2", "IN 2" }, |
| { "ENC", NULL, "SRC SEL" }, |
| { "OUT", NULL, "ENC" }, |
| }; |
| |
| static const struct snd_soc_component_driver axg_tdmout_component_drv = { |
| .controls = axg_tdmout_controls, |
| .num_controls = ARRAY_SIZE(axg_tdmout_controls), |
| .dapm_widgets = axg_tdmout_dapm_widgets, |
| .num_dapm_widgets = ARRAY_SIZE(axg_tdmout_dapm_widgets), |
| .dapm_routes = axg_tdmout_dapm_routes, |
| .num_dapm_routes = ARRAY_SIZE(axg_tdmout_dapm_routes), |
| }; |
| |
| static const struct axg_tdm_formatter_ops axg_tdmout_ops = { |
| .get_stream = axg_tdmout_get_tdm_stream, |
| .prepare = axg_tdmout_prepare, |
| .enable = axg_tdmout_enable, |
| .disable = axg_tdmout_disable, |
| }; |
| |
| static const struct axg_tdm_formatter_driver axg_tdmout_drv = { |
| .component_drv = &axg_tdmout_component_drv, |
| .regmap_cfg = &axg_tdmout_regmap_cfg, |
| .ops = &axg_tdmout_ops, |
| .quirks = &(const struct axg_tdm_formatter_hw) { |
| .invert_sclk = true, |
| .skew_offset = 1, |
| }, |
| }; |
| |
| static const struct axg_tdm_formatter_driver g12a_tdmout_drv = { |
| .component_drv = &axg_tdmout_component_drv, |
| .regmap_cfg = &axg_tdmout_regmap_cfg, |
| .ops = &axg_tdmout_ops, |
| .quirks = &(const struct axg_tdm_formatter_hw) { |
| .invert_sclk = true, |
| .skew_offset = 2, |
| }, |
| }; |
| |
| static const struct snd_kcontrol_new sm1_tdmout_controls[] = { |
| SOC_DOUBLE("Lane 0 Volume", TDMOUT_GAIN0, 0, 8, 255, 0), |
| SOC_DOUBLE("Lane 1 Volume", TDMOUT_GAIN0, 16, 24, 255, 0), |
| SOC_DOUBLE("Lane 2 Volume", TDMOUT_GAIN1, 0, 8, 255, 0), |
| SOC_DOUBLE("Lane 3 Volume", TDMOUT_GAIN1, 16, 24, 255, 0), |
| SOC_SINGLE("Gain Enable Switch", TDMOUT_CTRL1, |
| SM1_TDMOUT_CTRL1_GAIN_EN, 1, 0), |
| }; |
| |
| static const char * const sm1_tdmout_sel_texts[] = { |
| "IN 0", "IN 1", "IN 2", "IN 3", "IN 4", |
| }; |
| |
| static SOC_ENUM_SINGLE_DECL(sm1_tdmout_sel_enum, TDMOUT_CTRL1, |
| TDMOUT_CTRL1_SEL_SHIFT, sm1_tdmout_sel_texts); |
| |
| static const struct snd_kcontrol_new sm1_tdmout_in_mux = |
| SOC_DAPM_ENUM("Input Source", sm1_tdmout_sel_enum); |
| |
| static const struct snd_soc_dapm_widget sm1_tdmout_dapm_widgets[] = { |
| SND_SOC_DAPM_AIF_IN("IN 0", NULL, 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_AIF_IN("IN 1", NULL, 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_AIF_IN("IN 2", NULL, 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_AIF_IN("IN 3", NULL, 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_AIF_IN("IN 4", NULL, 0, SND_SOC_NOPM, 0, 0), |
| SND_SOC_DAPM_MUX("SRC SEL", SND_SOC_NOPM, 0, 0, &sm1_tdmout_in_mux), |
| SND_SOC_DAPM_PGA_E("ENC", SND_SOC_NOPM, 0, 0, NULL, 0, |
| axg_tdm_formatter_event, |
| (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD)), |
| SND_SOC_DAPM_AIF_OUT("OUT", NULL, 0, SND_SOC_NOPM, 0, 0), |
| }; |
| |
| static const struct snd_soc_dapm_route sm1_tdmout_dapm_routes[] = { |
| { "SRC SEL", "IN 0", "IN 0" }, |
| { "SRC SEL", "IN 1", "IN 1" }, |
| { "SRC SEL", "IN 2", "IN 2" }, |
| { "SRC SEL", "IN 3", "IN 3" }, |
| { "SRC SEL", "IN 4", "IN 4" }, |
| { "ENC", NULL, "SRC SEL" }, |
| { "OUT", NULL, "ENC" }, |
| }; |
| |
| static const struct snd_soc_component_driver sm1_tdmout_component_drv = { |
| .controls = sm1_tdmout_controls, |
| .num_controls = ARRAY_SIZE(sm1_tdmout_controls), |
| .dapm_widgets = sm1_tdmout_dapm_widgets, |
| .num_dapm_widgets = ARRAY_SIZE(sm1_tdmout_dapm_widgets), |
| .dapm_routes = sm1_tdmout_dapm_routes, |
| .num_dapm_routes = ARRAY_SIZE(sm1_tdmout_dapm_routes), |
| }; |
| |
| static const struct axg_tdm_formatter_driver sm1_tdmout_drv = { |
| .component_drv = &sm1_tdmout_component_drv, |
| .regmap_cfg = &axg_tdmout_regmap_cfg, |
| .ops = &axg_tdmout_ops, |
| .quirks = &(const struct axg_tdm_formatter_hw) { |
| .invert_sclk = true, |
| .skew_offset = 2, |
| }, |
| }; |
| |
| static const struct of_device_id axg_tdmout_of_match[] = { |
| { |
| .compatible = "amlogic,axg-tdmout", |
| .data = &axg_tdmout_drv, |
| }, { |
| .compatible = "amlogic,g12a-tdmout", |
| .data = &g12a_tdmout_drv, |
| }, { |
| .compatible = "amlogic,sm1-tdmout", |
| .data = &sm1_tdmout_drv, |
| }, {} |
| }; |
| MODULE_DEVICE_TABLE(of, axg_tdmout_of_match); |
| |
| static struct platform_driver axg_tdmout_pdrv = { |
| .probe = axg_tdm_formatter_probe, |
| .driver = { |
| .name = "axg-tdmout", |
| .of_match_table = axg_tdmout_of_match, |
| }, |
| }; |
| module_platform_driver(axg_tdmout_pdrv); |
| |
| MODULE_DESCRIPTION("Amlogic AXG TDM output formatter driver"); |
| MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>"); |
| MODULE_LICENSE("GPL v2"); |