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