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ASoC: codecs: Add uda1334 codec driver
The UDA1334BTS supports the I2S-bus data format with word lengths of up to 24 bits serial data format and has basic features such as de-emphasis (at 44.1 kHz sampling rate) and mute. Datasheet can be found at: https://www.nxp.com/docs/en/data-sheet/UDA1334BTS.pdf Cc: Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by: Andra Danciu <andradanciu1997@gmail.com> Link: https://lore.kernel.org/r/20190731111930.20230-3-andradanciu1997@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andra Danciu
Mark Brown
parent
d6de65fde5
commit
caa918ef14
@ -199,6 +199,7 @@ config SND_SOC_ALL_CODECS
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select SND_SOC_TS3A227E if I2C
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select SND_SOC_TWL4030 if TWL4030_CORE
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select SND_SOC_TWL6040 if TWL6040_CORE
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select SND_SOC_UDA1334 if GPIOLIB
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select SND_SOC_UDA134X
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select SND_SOC_UDA1380 if I2C
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select SND_SOC_WCD9335 if SLIMBUS
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@ -1207,6 +1208,14 @@ config SND_SOC_TWL4030
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config SND_SOC_TWL6040
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tristate
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config SND_SOC_UDA1334
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tristate "NXP UDA1334 DAC"
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depends on GPIOLIB
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help
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The UDA1334 is an NXP audio codec, supports the I2S-bus data format
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and has basic features such as de-emphasis (at 44.1 kHz sampling
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rate) and mute.
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config SND_SOC_UDA134X
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tristate
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@ -212,6 +212,7 @@ snd-soc-tscs454-objs := tscs454.o
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snd-soc-ts3a227e-objs := ts3a227e.o
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snd-soc-twl4030-objs := twl4030.o
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snd-soc-twl6040-objs := twl6040.o
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snd-soc-uda1334-objs := uda1334.o
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snd-soc-uda134x-objs := uda134x.o
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snd-soc-uda1380-objs := uda1380.o
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snd-soc-wcd9335-objs := wcd-clsh-v2.o wcd9335.o
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@ -494,6 +495,7 @@ obj-$(CONFIG_SND_SOC_TSCS454) += snd-soc-tscs454.o
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obj-$(CONFIG_SND_SOC_TS3A227E) += snd-soc-ts3a227e.o
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obj-$(CONFIG_SND_SOC_TWL4030) += snd-soc-twl4030.o
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obj-$(CONFIG_SND_SOC_TWL6040) += snd-soc-twl6040.o
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obj-$(CONFIG_SND_SOC_UDA1334) += snd-soc-uda1334.o
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obj-$(CONFIG_SND_SOC_UDA134X) += snd-soc-uda134x.o
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obj-$(CONFIG_SND_SOC_UDA1380) += snd-soc-uda1380.o
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obj-$(CONFIG_SND_SOC_WCD9335) += snd-soc-wcd9335.o
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295
sound/soc/codecs/uda1334.c
Normal file
295
sound/soc/codecs/uda1334.c
Normal file
@ -0,0 +1,295 @@
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// SPDX-License-Identifier: GPL-2.0-only
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//
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// uda1334.c -- UDA1334 ALSA SoC Audio driver
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//
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// Based on WM8523 ALSA SoC Audio driver written by Mark Brown
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/gpio/consumer.h>
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#include <linux/of_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/initval.h>
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#define UDA1334_NUM_RATES 6
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/* codec private data */
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struct uda1334_priv {
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struct gpio_desc *mute;
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struct gpio_desc *deemph;
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unsigned int sysclk;
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unsigned int rate_constraint_list[UDA1334_NUM_RATES];
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struct snd_pcm_hw_constraint_list rate_constraint;
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};
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static const struct snd_soc_dapm_widget uda1334_dapm_widgets[] = {
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SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_OUTPUT("LINEVOUTL"),
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SND_SOC_DAPM_OUTPUT("LINEVOUTR"),
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};
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static const struct snd_soc_dapm_route uda1334_dapm_routes[] = {
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{ "LINEVOUTL", NULL, "DAC" },
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{ "LINEVOUTR", NULL, "DAC" },
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};
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static int uda1334_put_deemph(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
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struct uda1334_priv *uda1334 = snd_soc_component_get_drvdata(component);
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int deemph = ucontrol->value.integer.value[0];
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if (deemph > 1)
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return -EINVAL;
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gpiod_set_value_cansleep(uda1334->deemph, deemph);
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return 0;
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};
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static int uda1334_get_deemph(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
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struct uda1334_priv *uda1334 = snd_soc_component_get_drvdata(component);
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int ret;
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ret = gpiod_get_value_cansleep(uda1334->deemph);
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if (ret < 0)
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return -EINVAL;
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ucontrol->value.integer.value[0] = ret;
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return 0;
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};
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static const struct snd_kcontrol_new uda1334_snd_controls[] = {
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SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0,
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uda1334_get_deemph, uda1334_put_deemph),
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};
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static const struct {
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int value;
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int ratio;
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} lrclk_ratios[UDA1334_NUM_RATES] = {
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{ 1, 128 },
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{ 2, 192 },
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{ 3, 256 },
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{ 4, 384 },
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{ 5, 512 },
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{ 6, 768 },
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};
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static int uda1334_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 *component = dai->component;
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struct uda1334_priv *uda1334 = snd_soc_component_get_drvdata(component);
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/*
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* The set of sample rates that can be supported depends on the
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* MCLK supplied to the CODEC - enforce this.
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*/
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if (!uda1334->sysclk) {
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dev_err(component->dev,
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"No MCLK configured, call set_sysclk() on init\n");
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return -EINVAL;
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}
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snd_pcm_hw_constraint_list(substream->runtime, 0,
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SNDRV_PCM_HW_PARAM_RATE,
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&uda1334->rate_constraint);
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gpiod_set_value_cansleep(uda1334->mute, 1);
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return 0;
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}
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static void uda1334_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 *component = dai->component;
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struct uda1334_priv *uda1334 = snd_soc_component_get_drvdata(component);
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gpiod_set_value_cansleep(uda1334->mute, 0);
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}
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static int uda1334_set_dai_sysclk(struct snd_soc_dai *codec_dai,
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int clk_id, unsigned int freq, int dir)
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{
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struct snd_soc_component *component = codec_dai->component;
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struct uda1334_priv *uda1334 = snd_soc_component_get_drvdata(component);
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unsigned int val;
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int i, j = 0;
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uda1334->sysclk = freq;
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uda1334->rate_constraint.count = 0;
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for (i = 0; i < ARRAY_SIZE(lrclk_ratios); i++) {
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val = freq / lrclk_ratios[i].ratio;
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/*
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* Check that it's a standard rate since core can't
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* cope with others and having the odd rates confuses
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* constraint matching.
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*/
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switch (val) {
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case 8000:
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case 32000:
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case 44100:
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case 48000:
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case 64000:
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case 88200:
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case 96000:
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dev_dbg(component->dev, "Supported sample rate: %dHz\n",
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val);
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uda1334->rate_constraint_list[j++] = val;
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uda1334->rate_constraint.count++;
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break;
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default:
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dev_dbg(component->dev, "Skipping sample rate: %dHz\n",
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val);
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}
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}
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/* Need at least one supported rate... */
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if (uda1334->rate_constraint.count == 0)
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return -EINVAL;
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return 0;
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}
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static int uda1334_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
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{
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fmt &= (SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK |
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SND_SOC_DAIFMT_MASTER_MASK);
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if (fmt != (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS)) {
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dev_err(codec_dai->dev, "Invalid DAI format\n");
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return -EINVAL;
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}
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return 0;
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}
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static int uda1334_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
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{
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struct uda1334_priv *uda1334 = snd_soc_component_get_drvdata(dai->component);
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if (uda1334->mute)
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gpiod_set_value_cansleep(uda1334->mute, mute);
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return 0;
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}
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#define UDA1334_RATES SNDRV_PCM_RATE_8000_96000
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#define UDA1334_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
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static const struct snd_soc_dai_ops uda1334_dai_ops = {
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.startup = uda1334_startup,
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.shutdown = uda1334_shutdown,
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.set_sysclk = uda1334_set_dai_sysclk,
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.set_fmt = uda1334_set_fmt,
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.mute_stream = uda1334_mute_stream,
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};
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static struct snd_soc_dai_driver uda1334_dai = {
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.name = "uda1334-hifi",
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.playback = {
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.stream_name = "Playback",
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.channels_min = 2,
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.channels_max = 2,
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.rates = UDA1334_RATES,
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.formats = UDA1334_FORMATS,
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},
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.ops = &uda1334_dai_ops,
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};
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static int uda1334_probe(struct snd_soc_component *component)
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{
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struct uda1334_priv *uda1334 = snd_soc_component_get_drvdata(component);
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uda1334->rate_constraint.list = &uda1334->rate_constraint_list[0];
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uda1334->rate_constraint.count =
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ARRAY_SIZE(uda1334->rate_constraint_list);
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return 0;
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}
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static const struct snd_soc_component_driver soc_component_dev_uda1334 = {
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.probe = uda1334_probe,
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.controls = uda1334_snd_controls,
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.num_controls = ARRAY_SIZE(uda1334_snd_controls),
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.dapm_widgets = uda1334_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(uda1334_dapm_widgets),
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.dapm_routes = uda1334_dapm_routes,
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.num_dapm_routes = ARRAY_SIZE(uda1334_dapm_routes),
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.idle_bias_on = 1,
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.use_pmdown_time = 1,
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.endianness = 1,
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.non_legacy_dai_naming = 1,
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};
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static const struct of_device_id uda1334_of_match[] = {
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{ .compatible = "nxp,uda1334" },
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{ /* sentinel*/ }
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};
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MODULE_DEVICE_TABLE(of, uda1334_of_match);
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static int uda1334_codec_probe(struct platform_device *pdev)
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{
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struct uda1334_priv *uda1334;
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int ret;
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uda1334 = devm_kzalloc(&pdev->dev, sizeof(struct uda1334_priv),
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GFP_KERNEL);
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if (!uda1334)
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return -ENOMEM;
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platform_set_drvdata(pdev, uda1334);
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uda1334->mute = devm_gpiod_get(&pdev->dev, "nxp,mute", GPIOD_OUT_LOW);
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if (IS_ERR(uda1334->mute)) {
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ret = PTR_ERR(uda1334->mute);
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dev_err(&pdev->dev, "Failed to get mute line: %d\n", ret);
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return ret;
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}
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uda1334->deemph = devm_gpiod_get(&pdev->dev, "nxp,deemph", GPIOD_OUT_LOW);
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if (IS_ERR(uda1334->deemph)) {
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ret = PTR_ERR(uda1334->deemph);
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dev_err(&pdev->dev, "Failed to get deemph line: %d\n", ret);
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return ret;
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}
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ret = devm_snd_soc_register_component(&pdev->dev,
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&soc_component_dev_uda1334,
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&uda1334_dai, 1);
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if (ret < 0)
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dev_err(&pdev->dev, "Failed to register component: %d\n", ret);
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return ret;
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}
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static struct platform_driver uda1334_codec_driver = {
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.probe = uda1334_codec_probe,
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.driver = {
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.name = "uda1334-codec",
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.of_match_table = uda1334_of_match,
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},
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};
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module_platform_driver(uda1334_codec_driver);
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MODULE_DESCRIPTION("ASoC UDA1334 driver");
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MODULE_AUTHOR("Andra Danciu <andradanciu1997@gmail.com>");
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MODULE_ALIAS("platform:uda1334-codec");
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MODULE_LICENSE("GPL v2");
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