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65ba325625
This patch syncs naming rule. - xxx_rates; + xxx_rate; - xxx_samplebits; + xxx_sample_bits; Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/r/87lfcun6tp.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown <broonie@kernel.org>
267 lines
6.9 KiB
C
267 lines
6.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// Lochnagar sound card driver
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//
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// Copyright (c) 2017-2019 Cirrus Logic, Inc. and
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// Cirrus Logic International Semiconductor Ltd.
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//
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// Author: Charles Keepax <ckeepax@opensource.cirrus.com>
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// Piotr Stankiewicz <piotrs@opensource.cirrus.com>
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#include <linux/clk.h>
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#include <linux/module.h>
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#include <sound/soc.h>
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#include <linux/mfd/lochnagar.h>
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#include <linux/mfd/lochnagar1_regs.h>
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#include <linux/mfd/lochnagar2_regs.h>
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struct lochnagar_sc_priv {
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struct clk *mclk;
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};
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static const struct snd_soc_dapm_widget lochnagar_sc_widgets[] = {
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SND_SOC_DAPM_LINE("Line Jack", NULL),
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SND_SOC_DAPM_LINE("USB Audio", NULL),
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};
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static const struct snd_soc_dapm_route lochnagar_sc_routes[] = {
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{ "Line Jack", NULL, "AIF1 Playback" },
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{ "AIF1 Capture", NULL, "Line Jack" },
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{ "USB Audio", NULL, "USB1 Playback" },
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{ "USB Audio", NULL, "USB2 Playback" },
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{ "USB1 Capture", NULL, "USB Audio" },
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{ "USB2 Capture", NULL, "USB Audio" },
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};
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static const unsigned int lochnagar_sc_chan_vals[] = {
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4, 8,
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};
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static const struct snd_pcm_hw_constraint_list lochnagar_sc_chan_constraint = {
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.count = ARRAY_SIZE(lochnagar_sc_chan_vals),
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.list = lochnagar_sc_chan_vals,
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};
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static const unsigned int lochnagar_sc_rate_vals[] = {
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8000, 16000, 24000, 32000, 48000, 96000, 192000,
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22050, 44100, 88200, 176400,
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};
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static const struct snd_pcm_hw_constraint_list lochnagar_sc_rate_constraint = {
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.count = ARRAY_SIZE(lochnagar_sc_rate_vals),
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.list = lochnagar_sc_rate_vals,
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};
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static int lochnagar_sc_hw_rule_rate(struct snd_pcm_hw_params *params,
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struct snd_pcm_hw_rule *rule)
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{
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struct snd_interval range = {
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.min = 8000,
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.max = 24576000 / hw_param_interval(params, rule->deps[0])->max,
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};
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return snd_interval_refine(hw_param_interval(params, rule->var),
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&range);
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}
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static int lochnagar_sc_startup(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_component *comp = dai->component;
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struct lochnagar_sc_priv *priv = snd_soc_component_get_drvdata(comp);
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int ret;
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ret = snd_pcm_hw_constraint_list(substream->runtime, 0,
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SNDRV_PCM_HW_PARAM_RATE,
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&lochnagar_sc_rate_constraint);
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if (ret)
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return ret;
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return snd_pcm_hw_rule_add(substream->runtime, 0,
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SNDRV_PCM_HW_PARAM_RATE,
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lochnagar_sc_hw_rule_rate, priv,
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SNDRV_PCM_HW_PARAM_FRAME_BITS, -1);
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}
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static int lochnagar_sc_line_startup(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_component *comp = dai->component;
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struct lochnagar_sc_priv *priv = snd_soc_component_get_drvdata(comp);
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int ret;
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ret = clk_prepare_enable(priv->mclk);
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if (ret < 0) {
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dev_err(dai->dev, "Failed to enable MCLK: %d\n", ret);
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return ret;
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}
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ret = lochnagar_sc_startup(substream, dai);
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if (ret)
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return ret;
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return snd_pcm_hw_constraint_list(substream->runtime, 0,
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SNDRV_PCM_HW_PARAM_CHANNELS,
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&lochnagar_sc_chan_constraint);
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}
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static void lochnagar_sc_line_shutdown(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_component *comp = dai->component;
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struct lochnagar_sc_priv *priv = snd_soc_component_get_drvdata(comp);
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clk_disable_unprepare(priv->mclk);
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}
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static int lochnagar_sc_check_fmt(struct snd_soc_dai *dai, unsigned int fmt,
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unsigned int tar)
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{
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tar |= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF;
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if ((fmt & ~SND_SOC_DAIFMT_CLOCK_MASK) != tar)
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return -EINVAL;
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return 0;
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}
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static int lochnagar_sc_set_line_fmt(struct snd_soc_dai *dai, unsigned int fmt)
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{
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return lochnagar_sc_check_fmt(dai, fmt, SND_SOC_DAIFMT_CBS_CFS);
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}
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static int lochnagar_sc_set_usb_fmt(struct snd_soc_dai *dai, unsigned int fmt)
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{
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return lochnagar_sc_check_fmt(dai, fmt, SND_SOC_DAIFMT_CBM_CFM);
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}
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static const struct snd_soc_dai_ops lochnagar_sc_line_ops = {
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.startup = lochnagar_sc_line_startup,
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.shutdown = lochnagar_sc_line_shutdown,
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.set_fmt = lochnagar_sc_set_line_fmt,
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};
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static const struct snd_soc_dai_ops lochnagar_sc_usb_ops = {
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.startup = lochnagar_sc_startup,
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.set_fmt = lochnagar_sc_set_usb_fmt,
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};
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static struct snd_soc_dai_driver lochnagar_sc_dai[] = {
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{
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.name = "lochnagar-line",
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.playback = {
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.stream_name = "AIF1 Playback",
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.channels_min = 4,
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.channels_max = 8,
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.rates = SNDRV_PCM_RATE_KNOT,
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.formats = SNDRV_PCM_FMTBIT_S32_LE,
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},
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.capture = {
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.stream_name = "AIF1 Capture",
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.channels_min = 4,
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.channels_max = 8,
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.rates = SNDRV_PCM_RATE_KNOT,
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.formats = SNDRV_PCM_FMTBIT_S32_LE,
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},
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.ops = &lochnagar_sc_line_ops,
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.symmetric_rate = true,
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.symmetric_sample_bits = true,
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},
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{
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.name = "lochnagar-usb1",
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.playback = {
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.stream_name = "USB1 Playback",
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.channels_min = 1,
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.channels_max = 8,
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.rates = SNDRV_PCM_RATE_KNOT,
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.formats = SNDRV_PCM_FMTBIT_S32_LE,
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},
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.capture = {
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.stream_name = "USB1 Capture",
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.channels_min = 1,
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.channels_max = 8,
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.rates = SNDRV_PCM_RATE_KNOT,
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.formats = SNDRV_PCM_FMTBIT_S32_LE,
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},
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.ops = &lochnagar_sc_usb_ops,
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.symmetric_rate = true,
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.symmetric_sample_bits = true,
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},
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{
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.name = "lochnagar-usb2",
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.playback = {
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.stream_name = "USB2 Playback",
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.channels_min = 1,
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.channels_max = 8,
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.rates = SNDRV_PCM_RATE_KNOT,
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.formats = SNDRV_PCM_FMTBIT_S32_LE,
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},
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.capture = {
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.stream_name = "USB2 Capture",
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.channels_min = 1,
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.channels_max = 8,
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.rates = SNDRV_PCM_RATE_KNOT,
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.formats = SNDRV_PCM_FMTBIT_S32_LE,
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},
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.ops = &lochnagar_sc_usb_ops,
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.symmetric_rate = true,
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.symmetric_sample_bits = true,
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},
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};
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static const struct snd_soc_component_driver lochnagar_sc_driver = {
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.non_legacy_dai_naming = 1,
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.dapm_widgets = lochnagar_sc_widgets,
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.num_dapm_widgets = ARRAY_SIZE(lochnagar_sc_widgets),
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.dapm_routes = lochnagar_sc_routes,
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.num_dapm_routes = ARRAY_SIZE(lochnagar_sc_routes),
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};
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static int lochnagar_sc_probe(struct platform_device *pdev)
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{
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struct lochnagar_sc_priv *priv;
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int ret;
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priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
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if (!priv)
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return -ENOMEM;
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priv->mclk = devm_clk_get(&pdev->dev, "mclk");
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if (IS_ERR(priv->mclk)) {
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ret = PTR_ERR(priv->mclk);
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dev_err(&pdev->dev, "Failed to get MCLK: %d\n", ret);
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return ret;
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}
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platform_set_drvdata(pdev, priv);
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return devm_snd_soc_register_component(&pdev->dev,
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&lochnagar_sc_driver,
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lochnagar_sc_dai,
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ARRAY_SIZE(lochnagar_sc_dai));
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}
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static const struct of_device_id lochnagar_of_match[] = {
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{ .compatible = "cirrus,lochnagar2-soundcard" },
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{}
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};
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MODULE_DEVICE_TABLE(of, lochnagar_of_match);
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static struct platform_driver lochnagar_sc_codec_driver = {
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.driver = {
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.name = "lochnagar-soundcard",
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.of_match_table = of_match_ptr(lochnagar_of_match),
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},
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.probe = lochnagar_sc_probe,
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};
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module_platform_driver(lochnagar_sc_codec_driver);
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MODULE_DESCRIPTION("ASoC Lochnagar Sound Card Driver");
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MODULE_AUTHOR("Piotr Stankiewicz <piotrs@opensource.cirrus.com>");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:lochnagar-soundcard");
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