396 lines
14 KiB
C
396 lines
14 KiB
C
// 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 <jbrunet@baylibre.com>
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/*
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* This driver implements the frontend playback DAI of AXG and G12A based SoCs
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*/
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#include <linux/clk.h>
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#include <linux/regmap.h>
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#include <linux/module.h>
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#include <linux/of_platform.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/soc-dai.h>
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#include "axg-fifo.h"
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#define CTRL0_FRDDR_PP_MODE BIT(30)
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#define CTRL0_SEL1_EN_SHIFT 3
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#define CTRL0_SEL2_SHIFT 4
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#define CTRL0_SEL2_EN_SHIFT 7
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#define CTRL0_SEL3_SHIFT 8
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#define CTRL0_SEL3_EN_SHIFT 11
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#define CTRL1_FRDDR_FORCE_FINISH BIT(12)
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#define CTRL2_SEL1_SHIFT 0
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#define CTRL2_SEL1_EN_SHIFT 4
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#define CTRL2_SEL2_SHIFT 8
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#define CTRL2_SEL2_EN_SHIFT 12
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#define CTRL2_SEL3_SHIFT 16
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#define CTRL2_SEL3_EN_SHIFT 20
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static int g12a_frddr_dai_prepare(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai);
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/* Reset the read pointer to the FIFO_INIT_ADDR */
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regmap_update_bits(fifo->map, FIFO_CTRL1,
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CTRL1_FRDDR_FORCE_FINISH, 0);
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regmap_update_bits(fifo->map, FIFO_CTRL1,
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CTRL1_FRDDR_FORCE_FINISH, CTRL1_FRDDR_FORCE_FINISH);
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regmap_update_bits(fifo->map, FIFO_CTRL1,
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CTRL1_FRDDR_FORCE_FINISH, 0);
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return 0;
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}
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static int axg_frddr_dai_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai);
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unsigned int period, depth, val;
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period = params_period_bytes(params);
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/* Trim the FIFO depth if the period is small to improve latency */
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depth = min(period, fifo->depth);
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val = (depth / AXG_FIFO_BURST) - 1;
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regmap_update_bits(fifo->map, FIFO_CTRL1, CTRL1_FRDDR_DEPTH_MASK,
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CTRL1_FRDDR_DEPTH(val));
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return 0;
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}
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static int axg_frddr_dai_startup(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai);
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int ret;
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/* Enable pclk to access registers and clock the fifo ip */
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ret = clk_prepare_enable(fifo->pclk);
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if (ret)
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return ret;
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/* Apply single buffer mode to the interface */
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regmap_update_bits(fifo->map, FIFO_CTRL0, CTRL0_FRDDR_PP_MODE, 0);
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return 0;
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}
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static void axg_frddr_dai_shutdown(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai);
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clk_disable_unprepare(fifo->pclk);
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}
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static int axg_frddr_pcm_new(struct snd_soc_pcm_runtime *rtd,
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struct snd_soc_dai *dai)
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{
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return axg_fifo_pcm_new(rtd, SNDRV_PCM_STREAM_PLAYBACK);
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}
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static const struct snd_soc_dai_ops axg_frddr_ops = {
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.hw_params = axg_frddr_dai_hw_params,
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.startup = axg_frddr_dai_startup,
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.shutdown = axg_frddr_dai_shutdown,
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};
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static struct snd_soc_dai_driver axg_frddr_dai_drv = {
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.name = "FRDDR",
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.playback = {
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.stream_name = "Playback",
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.channels_min = 1,
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.channels_max = AXG_FIFO_CH_MAX,
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.rates = AXG_FIFO_RATES,
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.formats = AXG_FIFO_FORMATS,
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},
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.ops = &axg_frddr_ops,
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.pcm_new = axg_frddr_pcm_new,
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};
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static const char * const axg_frddr_sel_texts[] = {
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"OUT 0", "OUT 1", "OUT 2", "OUT 3", "OUT 4", "OUT 5", "OUT 6", "OUT 7",
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};
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static SOC_ENUM_SINGLE_DECL(axg_frddr_sel_enum, FIFO_CTRL0, CTRL0_SEL_SHIFT,
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axg_frddr_sel_texts);
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static const struct snd_kcontrol_new axg_frddr_out_demux =
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SOC_DAPM_ENUM("Output Sink", axg_frddr_sel_enum);
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static const struct snd_soc_dapm_widget axg_frddr_dapm_widgets[] = {
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SND_SOC_DAPM_DEMUX("SINK SEL", SND_SOC_NOPM, 0, 0,
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&axg_frddr_out_demux),
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SND_SOC_DAPM_AIF_OUT("OUT 0", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 1", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 2", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 3", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 4", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 5", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 6", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 7", NULL, 0, SND_SOC_NOPM, 0, 0),
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};
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static const struct snd_soc_dapm_route axg_frddr_dapm_routes[] = {
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{ "SINK SEL", NULL, "Playback" },
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{ "OUT 0", "OUT 0", "SINK SEL" },
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{ "OUT 1", "OUT 1", "SINK SEL" },
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{ "OUT 2", "OUT 2", "SINK SEL" },
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{ "OUT 3", "OUT 3", "SINK SEL" },
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{ "OUT 4", "OUT 4", "SINK SEL" },
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{ "OUT 5", "OUT 5", "SINK SEL" },
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{ "OUT 6", "OUT 6", "SINK SEL" },
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{ "OUT 7", "OUT 7", "SINK SEL" },
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};
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static const struct snd_soc_component_driver axg_frddr_component_drv = {
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.dapm_widgets = axg_frddr_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(axg_frddr_dapm_widgets),
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.dapm_routes = axg_frddr_dapm_routes,
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.num_dapm_routes = ARRAY_SIZE(axg_frddr_dapm_routes),
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.open = axg_fifo_pcm_open,
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.close = axg_fifo_pcm_close,
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.hw_params = axg_fifo_pcm_hw_params,
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.hw_free = axg_fifo_pcm_hw_free,
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.pointer = axg_fifo_pcm_pointer,
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.trigger = axg_fifo_pcm_trigger,
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.legacy_dai_naming = 1,
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};
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static const struct axg_fifo_match_data axg_frddr_match_data = {
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.field_threshold = REG_FIELD(FIFO_CTRL1, 16, 23),
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.component_drv = &axg_frddr_component_drv,
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.dai_drv = &axg_frddr_dai_drv
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};
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static const struct snd_soc_dai_ops g12a_frddr_ops = {
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.prepare = g12a_frddr_dai_prepare,
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.hw_params = axg_frddr_dai_hw_params,
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.startup = axg_frddr_dai_startup,
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.shutdown = axg_frddr_dai_shutdown,
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};
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static struct snd_soc_dai_driver g12a_frddr_dai_drv = {
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.name = "FRDDR",
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.playback = {
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.stream_name = "Playback",
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.channels_min = 1,
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.channels_max = AXG_FIFO_CH_MAX,
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.rates = AXG_FIFO_RATES,
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.formats = AXG_FIFO_FORMATS,
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},
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.ops = &g12a_frddr_ops,
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.pcm_new = axg_frddr_pcm_new,
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};
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static SOC_ENUM_SINGLE_DECL(g12a_frddr_sel1_enum, FIFO_CTRL0, CTRL0_SEL_SHIFT,
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axg_frddr_sel_texts);
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static SOC_ENUM_SINGLE_DECL(g12a_frddr_sel2_enum, FIFO_CTRL0, CTRL0_SEL2_SHIFT,
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axg_frddr_sel_texts);
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static SOC_ENUM_SINGLE_DECL(g12a_frddr_sel3_enum, FIFO_CTRL0, CTRL0_SEL3_SHIFT,
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axg_frddr_sel_texts);
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static const struct snd_kcontrol_new g12a_frddr_out1_demux =
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SOC_DAPM_ENUM("Output Src 1", g12a_frddr_sel1_enum);
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static const struct snd_kcontrol_new g12a_frddr_out2_demux =
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SOC_DAPM_ENUM("Output Src 2", g12a_frddr_sel2_enum);
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static const struct snd_kcontrol_new g12a_frddr_out3_demux =
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SOC_DAPM_ENUM("Output Src 3", g12a_frddr_sel3_enum);
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static const struct snd_kcontrol_new g12a_frddr_out1_enable =
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SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL0,
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CTRL0_SEL1_EN_SHIFT, 1, 0);
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static const struct snd_kcontrol_new g12a_frddr_out2_enable =
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SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL0,
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CTRL0_SEL2_EN_SHIFT, 1, 0);
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static const struct snd_kcontrol_new g12a_frddr_out3_enable =
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SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL0,
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CTRL0_SEL3_EN_SHIFT, 1, 0);
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static const struct snd_soc_dapm_widget g12a_frddr_dapm_widgets[] = {
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SND_SOC_DAPM_AIF_OUT("SRC 1", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("SRC 2", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("SRC 3", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_SWITCH("SRC 1 EN", SND_SOC_NOPM, 0, 0,
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&g12a_frddr_out1_enable),
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SND_SOC_DAPM_SWITCH("SRC 2 EN", SND_SOC_NOPM, 0, 0,
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&g12a_frddr_out2_enable),
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SND_SOC_DAPM_SWITCH("SRC 3 EN", SND_SOC_NOPM, 0, 0,
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&g12a_frddr_out3_enable),
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SND_SOC_DAPM_DEMUX("SINK 1 SEL", SND_SOC_NOPM, 0, 0,
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&g12a_frddr_out1_demux),
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SND_SOC_DAPM_DEMUX("SINK 2 SEL", SND_SOC_NOPM, 0, 0,
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&g12a_frddr_out2_demux),
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SND_SOC_DAPM_DEMUX("SINK 3 SEL", SND_SOC_NOPM, 0, 0,
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&g12a_frddr_out3_demux),
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SND_SOC_DAPM_AIF_OUT("OUT 0", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 1", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 2", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 3", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 4", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 5", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 6", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 7", NULL, 0, SND_SOC_NOPM, 0, 0),
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};
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static const struct snd_soc_dapm_route g12a_frddr_dapm_routes[] = {
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{ "SRC 1", NULL, "Playback" },
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{ "SRC 2", NULL, "Playback" },
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{ "SRC 3", NULL, "Playback" },
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{ "SRC 1 EN", "Switch", "SRC 1" },
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{ "SRC 2 EN", "Switch", "SRC 2" },
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{ "SRC 3 EN", "Switch", "SRC 3" },
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{ "SINK 1 SEL", NULL, "SRC 1 EN" },
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{ "SINK 2 SEL", NULL, "SRC 2 EN" },
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{ "SINK 3 SEL", NULL, "SRC 3 EN" },
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{ "OUT 0", "OUT 0", "SINK 1 SEL" },
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{ "OUT 1", "OUT 1", "SINK 1 SEL" },
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{ "OUT 2", "OUT 2", "SINK 1 SEL" },
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{ "OUT 3", "OUT 3", "SINK 1 SEL" },
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{ "OUT 4", "OUT 4", "SINK 1 SEL" },
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{ "OUT 5", "OUT 5", "SINK 1 SEL" },
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{ "OUT 6", "OUT 6", "SINK 1 SEL" },
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{ "OUT 7", "OUT 7", "SINK 1 SEL" },
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{ "OUT 0", "OUT 0", "SINK 2 SEL" },
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{ "OUT 1", "OUT 1", "SINK 2 SEL" },
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{ "OUT 2", "OUT 2", "SINK 2 SEL" },
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{ "OUT 3", "OUT 3", "SINK 2 SEL" },
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{ "OUT 4", "OUT 4", "SINK 2 SEL" },
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{ "OUT 5", "OUT 5", "SINK 2 SEL" },
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{ "OUT 6", "OUT 6", "SINK 2 SEL" },
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{ "OUT 7", "OUT 7", "SINK 2 SEL" },
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{ "OUT 0", "OUT 0", "SINK 3 SEL" },
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{ "OUT 1", "OUT 1", "SINK 3 SEL" },
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{ "OUT 2", "OUT 2", "SINK 3 SEL" },
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{ "OUT 3", "OUT 3", "SINK 3 SEL" },
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{ "OUT 4", "OUT 4", "SINK 3 SEL" },
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{ "OUT 5", "OUT 5", "SINK 3 SEL" },
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{ "OUT 6", "OUT 6", "SINK 3 SEL" },
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{ "OUT 7", "OUT 7", "SINK 3 SEL" },
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};
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static const struct snd_soc_component_driver g12a_frddr_component_drv = {
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.dapm_widgets = g12a_frddr_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(g12a_frddr_dapm_widgets),
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.dapm_routes = g12a_frddr_dapm_routes,
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.num_dapm_routes = ARRAY_SIZE(g12a_frddr_dapm_routes),
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.open = axg_fifo_pcm_open,
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.close = axg_fifo_pcm_close,
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.hw_params = g12a_fifo_pcm_hw_params,
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.hw_free = axg_fifo_pcm_hw_free,
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.pointer = axg_fifo_pcm_pointer,
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.trigger = axg_fifo_pcm_trigger,
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.legacy_dai_naming = 1,
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};
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static const struct axg_fifo_match_data g12a_frddr_match_data = {
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.field_threshold = REG_FIELD(FIFO_CTRL1, 16, 23),
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.component_drv = &g12a_frddr_component_drv,
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.dai_drv = &g12a_frddr_dai_drv
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};
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/* On SM1, the output selection in on CTRL2 */
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static const struct snd_kcontrol_new sm1_frddr_out1_enable =
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SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL2,
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CTRL2_SEL1_EN_SHIFT, 1, 0);
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static const struct snd_kcontrol_new sm1_frddr_out2_enable =
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SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL2,
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CTRL2_SEL2_EN_SHIFT, 1, 0);
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static const struct snd_kcontrol_new sm1_frddr_out3_enable =
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SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL2,
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CTRL2_SEL3_EN_SHIFT, 1, 0);
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static SOC_ENUM_SINGLE_DECL(sm1_frddr_sel1_enum, FIFO_CTRL2, CTRL2_SEL1_SHIFT,
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axg_frddr_sel_texts);
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static SOC_ENUM_SINGLE_DECL(sm1_frddr_sel2_enum, FIFO_CTRL2, CTRL2_SEL2_SHIFT,
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axg_frddr_sel_texts);
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static SOC_ENUM_SINGLE_DECL(sm1_frddr_sel3_enum, FIFO_CTRL2, CTRL2_SEL3_SHIFT,
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axg_frddr_sel_texts);
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static const struct snd_kcontrol_new sm1_frddr_out1_demux =
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SOC_DAPM_ENUM("Output Src 1", sm1_frddr_sel1_enum);
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static const struct snd_kcontrol_new sm1_frddr_out2_demux =
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SOC_DAPM_ENUM("Output Src 2", sm1_frddr_sel2_enum);
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static const struct snd_kcontrol_new sm1_frddr_out3_demux =
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SOC_DAPM_ENUM("Output Src 3", sm1_frddr_sel3_enum);
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static const struct snd_soc_dapm_widget sm1_frddr_dapm_widgets[] = {
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SND_SOC_DAPM_AIF_OUT("SRC 1", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("SRC 2", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("SRC 3", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_SWITCH("SRC 1 EN", SND_SOC_NOPM, 0, 0,
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&sm1_frddr_out1_enable),
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SND_SOC_DAPM_SWITCH("SRC 2 EN", SND_SOC_NOPM, 0, 0,
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&sm1_frddr_out2_enable),
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SND_SOC_DAPM_SWITCH("SRC 3 EN", SND_SOC_NOPM, 0, 0,
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&sm1_frddr_out3_enable),
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SND_SOC_DAPM_DEMUX("SINK 1 SEL", SND_SOC_NOPM, 0, 0,
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&sm1_frddr_out1_demux),
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SND_SOC_DAPM_DEMUX("SINK 2 SEL", SND_SOC_NOPM, 0, 0,
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&sm1_frddr_out2_demux),
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SND_SOC_DAPM_DEMUX("SINK 3 SEL", SND_SOC_NOPM, 0, 0,
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&sm1_frddr_out3_demux),
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SND_SOC_DAPM_AIF_OUT("OUT 0", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 1", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 2", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 3", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 4", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 5", NULL, 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("OUT 6", NULL, 0, SND_SOC_NOPM, 0, 0),
|
|
SND_SOC_DAPM_AIF_OUT("OUT 7", NULL, 0, SND_SOC_NOPM, 0, 0),
|
|
};
|
|
|
|
static const struct snd_soc_component_driver sm1_frddr_component_drv = {
|
|
.dapm_widgets = sm1_frddr_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(sm1_frddr_dapm_widgets),
|
|
.dapm_routes = g12a_frddr_dapm_routes,
|
|
.num_dapm_routes = ARRAY_SIZE(g12a_frddr_dapm_routes),
|
|
.open = axg_fifo_pcm_open,
|
|
.close = axg_fifo_pcm_close,
|
|
.hw_params = g12a_fifo_pcm_hw_params,
|
|
.hw_free = axg_fifo_pcm_hw_free,
|
|
.pointer = axg_fifo_pcm_pointer,
|
|
.trigger = axg_fifo_pcm_trigger,
|
|
.legacy_dai_naming = 1,
|
|
};
|
|
|
|
static const struct axg_fifo_match_data sm1_frddr_match_data = {
|
|
.field_threshold = REG_FIELD(FIFO_CTRL1, 16, 23),
|
|
.component_drv = &sm1_frddr_component_drv,
|
|
.dai_drv = &g12a_frddr_dai_drv
|
|
};
|
|
|
|
static const struct of_device_id axg_frddr_of_match[] = {
|
|
{
|
|
.compatible = "amlogic,axg-frddr",
|
|
.data = &axg_frddr_match_data,
|
|
}, {
|
|
.compatible = "amlogic,g12a-frddr",
|
|
.data = &g12a_frddr_match_data,
|
|
}, {
|
|
.compatible = "amlogic,sm1-frddr",
|
|
.data = &sm1_frddr_match_data,
|
|
}, {}
|
|
};
|
|
MODULE_DEVICE_TABLE(of, axg_frddr_of_match);
|
|
|
|
static struct platform_driver axg_frddr_pdrv = {
|
|
.probe = axg_fifo_probe,
|
|
.driver = {
|
|
.name = "axg-frddr",
|
|
.of_match_table = axg_frddr_of_match,
|
|
},
|
|
};
|
|
module_platform_driver(axg_frddr_pdrv);
|
|
|
|
MODULE_DESCRIPTION("Amlogic AXG/G12A playback fifo driver");
|
|
MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
|
|
MODULE_LICENSE("GPL v2");
|