+++ /dev/null
-// 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 consumer mode */
- if ((fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) != SND_SOC_DAIFMT_CBC_CFC) {
- printk(KERN_ERR "%s unsupported clocking 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 int 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,
-};
-
-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");
projects / linux-2.6-microblaze.git / commitdiff