summaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs/uda134x.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--sound/soc/codecs/uda134x.c588
1 files changed, 588 insertions, 0 deletions
diff --git a/sound/soc/codecs/uda134x.c b/sound/soc/codecs/uda134x.c
new file mode 100644
index 000000000..bf9182ced
--- /dev/null
+++ b/sound/soc/codecs/uda134x.c
@@ -0,0 +1,588 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * uda134x.c -- UDA134X ALSA SoC Codec driver
+ *
+ * Modifications by Christian Pellegrin <chripell@evolware.org>
+ *
+ * Copyright 2007 Dension Audio Systems Ltd.
+ * Author: Zoltan Devai
+ *
+ * Based on the WM87xx drivers by Liam Girdwood and Richard Purdie
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/initval.h>
+
+#include <sound/uda134x.h>
+#include <sound/l3.h>
+
+#include "uda134x.h"
+
+
+#define UDA134X_RATES SNDRV_PCM_RATE_8000_48000
+#define UDA134X_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S20_3LE)
+
+struct uda134x_priv {
+ int sysclk;
+ int dai_fmt;
+
+ struct snd_pcm_substream *master_substream;
+ struct snd_pcm_substream *slave_substream;
+
+ struct regmap *regmap;
+ struct uda134x_platform_data *pd;
+};
+
+static const struct reg_default uda134x_reg_defaults[] = {
+ { UDA134X_EA000, 0x04 },
+ { UDA134X_EA001, 0x04 },
+ { UDA134X_EA010, 0x04 },
+ { UDA134X_EA011, 0x00 },
+ { UDA134X_EA100, 0x00 },
+ { UDA134X_EA101, 0x00 },
+ { UDA134X_EA110, 0x00 },
+ { UDA134X_EA111, 0x00 },
+ { UDA134X_STATUS0, 0x00 },
+ { UDA134X_STATUS1, 0x03 },
+ { UDA134X_DATA000, 0x00 },
+ { UDA134X_DATA001, 0x00 },
+ { UDA134X_DATA010, 0x00 },
+ { UDA134X_DATA011, 0x00 },
+ { UDA134X_DATA1, 0x00 },
+};
+
+/*
+ * Write to the uda134x registers
+ *
+ */
+static int uda134x_regmap_write(void *context, unsigned int reg,
+ unsigned int value)
+{
+ struct uda134x_platform_data *pd = context;
+ int ret;
+ u8 addr;
+ u8 data = value;
+
+ switch (reg) {
+ case UDA134X_STATUS0:
+ case UDA134X_STATUS1:
+ addr = UDA134X_STATUS_ADDR;
+ data |= (reg - UDA134X_STATUS0) << 7;
+ break;
+ case UDA134X_DATA000:
+ case UDA134X_DATA001:
+ case UDA134X_DATA010:
+ case UDA134X_DATA011:
+ addr = UDA134X_DATA0_ADDR;
+ data |= (reg - UDA134X_DATA000) << 6;
+ break;
+ case UDA134X_DATA1:
+ addr = UDA134X_DATA1_ADDR;
+ break;
+ default:
+ /* It's an extended address register */
+ addr = (reg | UDA134X_EXTADDR_PREFIX);
+
+ ret = l3_write(&pd->l3,
+ UDA134X_DATA0_ADDR, &addr, 1);
+ if (ret != 1)
+ return -EIO;
+
+ addr = UDA134X_DATA0_ADDR;
+ data = (value | UDA134X_EXTDATA_PREFIX);
+ break;
+ }
+
+ ret = l3_write(&pd->l3,
+ addr, &data, 1);
+ if (ret != 1)
+ return -EIO;
+
+ return 0;
+}
+
+static inline void uda134x_reset(struct snd_soc_component *component)
+{
+ struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component);
+ unsigned int mask = 1<<6;
+
+ regmap_update_bits(uda134x->regmap, UDA134X_STATUS0, mask, mask);
+ msleep(1);
+ regmap_update_bits(uda134x->regmap, UDA134X_STATUS0, mask, 0);
+}
+
+static int uda134x_mute(struct snd_soc_dai *dai, int mute, int direction)
+{
+ struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(dai->component);
+ unsigned int mask = 1<<2;
+ unsigned int val;
+
+ pr_debug("%s mute: %d\n", __func__, mute);
+
+ if (mute)
+ val = mask;
+ else
+ val = 0;
+
+ return regmap_update_bits(uda134x->regmap, UDA134X_DATA010, mask, val);
+}
+
+static int uda134x_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component);
+ struct snd_pcm_runtime *master_runtime;
+
+ if (uda134x->master_substream) {
+ master_runtime = uda134x->master_substream->runtime;
+
+ pr_debug("%s constraining to %d bits at %d\n", __func__,
+ master_runtime->sample_bits,
+ master_runtime->rate);
+
+ snd_pcm_hw_constraint_single(substream->runtime,
+ SNDRV_PCM_HW_PARAM_RATE,
+ master_runtime->rate);
+
+ snd_pcm_hw_constraint_single(substream->runtime,
+ SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
+ master_runtime->sample_bits);
+
+ uda134x->slave_substream = substream;
+ } else
+ uda134x->master_substream = substream;
+
+ return 0;
+}
+
+static void uda134x_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component);
+
+ if (uda134x->master_substream == substream)
+ uda134x->master_substream = uda134x->slave_substream;
+
+ uda134x->slave_substream = NULL;
+}
+
+static int uda134x_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component);
+ unsigned int hw_params = 0;
+
+ if (substream == uda134x->slave_substream) {
+ pr_debug("%s ignoring hw_params for slave substream\n",
+ __func__);
+ return 0;
+ }
+
+ pr_debug("%s sysclk: %d, rate:%d\n", __func__,
+ uda134x->sysclk, params_rate(params));
+
+ /* set SYSCLK / fs ratio */
+ switch (uda134x->sysclk / params_rate(params)) {
+ case 512:
+ break;
+ case 384:
+ hw_params |= (1<<4);
+ break;
+ case 256:
+ hw_params |= (1<<5);
+ break;
+ default:
+ printk(KERN_ERR "%s unsupported fs\n", __func__);
+ return -EINVAL;
+ }
+
+ pr_debug("%s dai_fmt: %d, params_format:%d\n", __func__,
+ uda134x->dai_fmt, params_format(params));
+
+ /* set DAI format and word length */
+ switch (uda134x->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ switch (params_width(params)) {
+ case 16:
+ hw_params |= (1<<1);
+ break;
+ case 18:
+ hw_params |= (1<<2);
+ break;
+ case 20:
+ hw_params |= ((1<<2) | (1<<1));
+ break;
+ default:
+ printk(KERN_ERR "%s unsupported format (right)\n",
+ __func__);
+ return -EINVAL;
+ }
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ hw_params |= (1<<3);
+ break;
+ default:
+ printk(KERN_ERR "%s unsupported format\n", __func__);
+ return -EINVAL;
+ }
+
+ return regmap_update_bits(uda134x->regmap, UDA134X_STATUS0,
+ STATUS0_SYSCLK_MASK | STATUS0_DAIFMT_MASK, hw_params);
+}
+
+static int uda134x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component);
+
+ pr_debug("%s clk_id: %d, freq: %u, dir: %d\n", __func__,
+ clk_id, freq, dir);
+
+ /* Anything between 256fs*8Khz and 512fs*48Khz should be acceptable
+ because the codec is slave. Of course limitations of the clock
+ master (the IIS controller) apply.
+ We'll error out on set_hw_params if it's not OK */
+ if ((freq >= (256 * 8000)) && (freq <= (512 * 48000))) {
+ uda134x->sysclk = freq;
+ return 0;
+ }
+
+ printk(KERN_ERR "%s unsupported sysclk\n", __func__);
+ return -EINVAL;
+}
+
+static int uda134x_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component);
+
+ pr_debug("%s fmt: %08X\n", __func__, fmt);
+
+ /* codec supports only full slave mode */
+ if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) {
+ printk(KERN_ERR "%s unsupported slave mode\n", __func__);
+ return -EINVAL;
+ }
+
+ /* no support for clock inversion */
+ if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) {
+ printk(KERN_ERR "%s unsupported clock inversion\n", __func__);
+ return -EINVAL;
+ }
+
+ /* We can't setup DAI format here as it depends on the word bit num */
+ /* so let's just store the value for later */
+ uda134x->dai_fmt = fmt;
+
+ return 0;
+}
+
+static int uda134x_set_bias_level(struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
+{
+ struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component);
+ struct uda134x_platform_data *pd = uda134x->pd;
+ pr_debug("%s bias level %d\n", __func__, level);
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ break;
+ case SND_SOC_BIAS_PREPARE:
+ /* power on */
+ if (pd->power) {
+ pd->power(1);
+ regcache_sync(uda134x->regmap);
+ }
+ break;
+ case SND_SOC_BIAS_STANDBY:
+ break;
+ case SND_SOC_BIAS_OFF:
+ /* power off */
+ if (pd->power) {
+ pd->power(0);
+ regcache_mark_dirty(uda134x->regmap);
+ }
+ break;
+ }
+ return 0;
+}
+
+static const char *uda134x_dsp_setting[] = {"Flat", "Minimum1",
+ "Minimum2", "Maximum"};
+static const char *uda134x_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
+static const char *uda134x_mixmode[] = {"Differential", "Analog1",
+ "Analog2", "Both"};
+
+static const struct soc_enum uda134x_mixer_enum[] = {
+SOC_ENUM_SINGLE(UDA134X_DATA010, 0, 0x04, uda134x_dsp_setting),
+SOC_ENUM_SINGLE(UDA134X_DATA010, 3, 0x04, uda134x_deemph),
+SOC_ENUM_SINGLE(UDA134X_EA010, 0, 0x04, uda134x_mixmode),
+};
+
+static const struct snd_kcontrol_new uda1341_snd_controls[] = {
+SOC_SINGLE("Master Playback Volume", UDA134X_DATA000, 0, 0x3F, 1),
+SOC_SINGLE("Capture Volume", UDA134X_EA010, 2, 0x07, 0),
+SOC_SINGLE("Analog1 Volume", UDA134X_EA000, 0, 0x1F, 1),
+SOC_SINGLE("Analog2 Volume", UDA134X_EA001, 0, 0x1F, 1),
+
+SOC_SINGLE("Mic Sensitivity", UDA134X_EA010, 2, 7, 0),
+SOC_SINGLE("Mic Volume", UDA134X_EA101, 0, 0x1F, 0),
+
+SOC_SINGLE("Tone Control - Bass", UDA134X_DATA001, 2, 0xF, 0),
+SOC_SINGLE("Tone Control - Treble", UDA134X_DATA001, 0, 3, 0),
+
+SOC_ENUM("Sound Processing Filter", uda134x_mixer_enum[0]),
+SOC_ENUM("PCM Playback De-emphasis", uda134x_mixer_enum[1]),
+SOC_ENUM("Input Mux", uda134x_mixer_enum[2]),
+
+SOC_SINGLE("AGC Switch", UDA134X_EA100, 4, 1, 0),
+SOC_SINGLE("AGC Target Volume", UDA134X_EA110, 0, 0x03, 1),
+SOC_SINGLE("AGC Timing", UDA134X_EA110, 2, 0x07, 0),
+
+SOC_SINGLE("DAC +6dB Switch", UDA134X_STATUS1, 6, 1, 0),
+SOC_SINGLE("ADC +6dB Switch", UDA134X_STATUS1, 5, 1, 0),
+SOC_SINGLE("ADC Polarity Switch", UDA134X_STATUS1, 4, 1, 0),
+SOC_SINGLE("DAC Polarity Switch", UDA134X_STATUS1, 3, 1, 0),
+SOC_SINGLE("Double Speed Playback Switch", UDA134X_STATUS1, 2, 1, 0),
+SOC_SINGLE("DC Filter Enable Switch", UDA134X_STATUS0, 0, 1, 0),
+};
+
+static const struct snd_kcontrol_new uda1340_snd_controls[] = {
+SOC_SINGLE("Master Playback Volume", UDA134X_DATA000, 0, 0x3F, 1),
+
+SOC_SINGLE("Tone Control - Bass", UDA134X_DATA001, 2, 0xF, 0),
+SOC_SINGLE("Tone Control - Treble", UDA134X_DATA001, 0, 3, 0),
+
+SOC_ENUM("Sound Processing Filter", uda134x_mixer_enum[0]),
+SOC_ENUM("PCM Playback De-emphasis", uda134x_mixer_enum[1]),
+
+SOC_SINGLE("DC Filter Enable Switch", UDA134X_STATUS0, 0, 1, 0),
+};
+
+static const struct snd_kcontrol_new uda1345_snd_controls[] = {
+SOC_SINGLE("Master Playback Volume", UDA134X_DATA000, 0, 0x3F, 1),
+
+SOC_ENUM("PCM Playback De-emphasis", uda134x_mixer_enum[1]),
+
+SOC_SINGLE("DC Filter Enable Switch", UDA134X_STATUS0, 0, 1, 0),
+};
+
+/* UDA1341 has the DAC/ADC power down in STATUS1 */
+static const struct snd_soc_dapm_widget uda1341_dapm_widgets[] = {
+ SND_SOC_DAPM_DAC("DAC", "Playback", UDA134X_STATUS1, 0, 0),
+ SND_SOC_DAPM_ADC("ADC", "Capture", UDA134X_STATUS1, 1, 0),
+};
+
+/* UDA1340/4/5 has the DAC/ADC pwoer down in DATA0 11 */
+static const struct snd_soc_dapm_widget uda1340_dapm_widgets[] = {
+ SND_SOC_DAPM_DAC("DAC", "Playback", UDA134X_DATA011, 0, 0),
+ SND_SOC_DAPM_ADC("ADC", "Capture", UDA134X_DATA011, 1, 0),
+};
+
+/* Common DAPM widgets */
+static const struct snd_soc_dapm_widget uda134x_dapm_widgets[] = {
+ SND_SOC_DAPM_INPUT("VINL1"),
+ SND_SOC_DAPM_INPUT("VINR1"),
+ SND_SOC_DAPM_INPUT("VINL2"),
+ SND_SOC_DAPM_INPUT("VINR2"),
+ SND_SOC_DAPM_OUTPUT("VOUTL"),
+ SND_SOC_DAPM_OUTPUT("VOUTR"),
+};
+
+static const struct snd_soc_dapm_route uda134x_dapm_routes[] = {
+ { "ADC", NULL, "VINL1" },
+ { "ADC", NULL, "VINR1" },
+ { "ADC", NULL, "VINL2" },
+ { "ADC", NULL, "VINR2" },
+ { "VOUTL", NULL, "DAC" },
+ { "VOUTR", NULL, "DAC" },
+};
+
+static const struct snd_soc_dai_ops uda134x_dai_ops = {
+ .startup = uda134x_startup,
+ .shutdown = uda134x_shutdown,
+ .hw_params = uda134x_hw_params,
+ .mute_stream = uda134x_mute,
+ .set_sysclk = uda134x_set_dai_sysclk,
+ .set_fmt = uda134x_set_dai_fmt,
+ .no_capture_mute = 1,
+};
+
+static struct snd_soc_dai_driver uda134x_dai = {
+ .name = "uda134x-hifi",
+ /* playback capabilities */
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = UDA134X_RATES,
+ .formats = UDA134X_FORMATS,
+ },
+ /* capture capabilities */
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = UDA134X_RATES,
+ .formats = UDA134X_FORMATS,
+ },
+ /* pcm operations */
+ .ops = &uda134x_dai_ops,
+};
+
+static int uda134x_soc_probe(struct snd_soc_component *component)
+{
+ struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+ struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component);
+ struct uda134x_platform_data *pd = uda134x->pd;
+ const struct snd_soc_dapm_widget *widgets;
+ unsigned num_widgets;
+ int ret;
+
+ printk(KERN_INFO "UDA134X SoC Audio Codec\n");
+
+ switch (pd->model) {
+ case UDA134X_UDA1340:
+ case UDA134X_UDA1341:
+ case UDA134X_UDA1344:
+ case UDA134X_UDA1345:
+ break;
+ default:
+ printk(KERN_ERR "UDA134X SoC codec: "
+ "unsupported model %d\n",
+ pd->model);
+ return -EINVAL;
+ }
+
+ if (pd->power)
+ pd->power(1);
+
+ uda134x_reset(component);
+
+ if (pd->model == UDA134X_UDA1341) {
+ widgets = uda1341_dapm_widgets;
+ num_widgets = ARRAY_SIZE(uda1341_dapm_widgets);
+ } else {
+ widgets = uda1340_dapm_widgets;
+ num_widgets = ARRAY_SIZE(uda1340_dapm_widgets);
+ }
+
+ ret = snd_soc_dapm_new_controls(dapm, widgets, num_widgets);
+ if (ret) {
+ printk(KERN_ERR "%s failed to register dapm controls: %d",
+ __func__, ret);
+ return ret;
+ }
+
+ switch (pd->model) {
+ case UDA134X_UDA1340:
+ case UDA134X_UDA1344:
+ ret = snd_soc_add_component_controls(component, uda1340_snd_controls,
+ ARRAY_SIZE(uda1340_snd_controls));
+ break;
+ case UDA134X_UDA1341:
+ ret = snd_soc_add_component_controls(component, uda1341_snd_controls,
+ ARRAY_SIZE(uda1341_snd_controls));
+ break;
+ case UDA134X_UDA1345:
+ ret = snd_soc_add_component_controls(component, uda1345_snd_controls,
+ ARRAY_SIZE(uda1345_snd_controls));
+ break;
+ default:
+ printk(KERN_ERR "%s unknown codec type: %d",
+ __func__, pd->model);
+ return -EINVAL;
+ }
+
+ if (ret < 0) {
+ printk(KERN_ERR "UDA134X: failed to register controls\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_component_driver soc_component_dev_uda134x = {
+ .probe = uda134x_soc_probe,
+ .set_bias_level = uda134x_set_bias_level,
+ .dapm_widgets = uda134x_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(uda134x_dapm_widgets),
+ .dapm_routes = uda134x_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(uda134x_dapm_routes),
+ .suspend_bias_off = 1,
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+ .non_legacy_dai_naming = 1,
+};
+
+static const struct regmap_config uda134x_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = UDA134X_DATA1,
+ .reg_defaults = uda134x_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(uda134x_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
+
+ .reg_write = uda134x_regmap_write,
+};
+
+static int uda134x_codec_probe(struct platform_device *pdev)
+{
+ struct uda134x_platform_data *pd = pdev->dev.platform_data;
+ struct uda134x_priv *uda134x;
+ int ret;
+
+ if (!pd) {
+ dev_err(&pdev->dev, "Missing L3 bitbang function\n");
+ return -ENODEV;
+ }
+
+ uda134x = devm_kzalloc(&pdev->dev, sizeof(*uda134x), GFP_KERNEL);
+ if (!uda134x)
+ return -ENOMEM;
+
+ uda134x->pd = pd;
+ platform_set_drvdata(pdev, uda134x);
+
+ if (pd->l3.use_gpios) {
+ ret = l3_set_gpio_ops(&pdev->dev, &uda134x->pd->l3);
+ if (ret < 0)
+ return ret;
+ }
+
+ uda134x->regmap = devm_regmap_init(&pdev->dev, NULL, pd,
+ &uda134x_regmap_config);
+ if (IS_ERR(uda134x->regmap))
+ return PTR_ERR(uda134x->regmap);
+
+ return devm_snd_soc_register_component(&pdev->dev,
+ &soc_component_dev_uda134x, &uda134x_dai, 1);
+}
+
+static struct platform_driver uda134x_codec_driver = {
+ .driver = {
+ .name = "uda134x-codec",
+ },
+ .probe = uda134x_codec_probe,
+};
+
+module_platform_driver(uda134x_codec_driver);
+
+MODULE_DESCRIPTION("UDA134X ALSA soc codec driver");
+MODULE_AUTHOR("Zoltan Devai, Christian Pellegrin <chripell@evolware.org>");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 18:27:24 +0000