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Diffstat (limited to 'sound/soc/codecs/tas2562.c')
-rw-r--r--sound/soc/codecs/tas2562.c590
1 files changed, 590 insertions, 0 deletions
diff --git a/sound/soc/codecs/tas2562.c b/sound/soc/codecs/tas2562.c
new file mode 100644
index 000000000000..729acd874c48
--- /dev/null
+++ b/sound/soc/codecs/tas2562.c
@@ -0,0 +1,590 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Driver for the Texas Instruments TAS2562 CODEC
+// Copyright (C) 2019 Texas Instruments Inc.
+
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/gpio/consumer.h>
+#include <linux/regulator/consumer.h>
+#include <linux/delay.h>
+
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/tlv.h>
+
+#include "tas2562.h"
+
+#define TAS2562_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\
+ SNDRV_PCM_FORMAT_S32_LE)
+
+struct tas2562_data {
+ struct snd_soc_component *component;
+ struct gpio_desc *sdz_gpio;
+ struct regmap *regmap;
+ struct device *dev;
+ struct i2c_client *client;
+ int v_sense_slot;
+ int i_sense_slot;
+};
+
+static int tas2562_set_bias_level(struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
+{
+ struct tas2562_data *tas2562 =
+ snd_soc_component_get_drvdata(component);
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ snd_soc_component_update_bits(component,
+ TAS2562_PWR_CTRL,
+ TAS2562_MODE_MASK, TAS2562_ACTIVE);
+ break;
+ case SND_SOC_BIAS_STANDBY:
+ case SND_SOC_BIAS_PREPARE:
+ snd_soc_component_update_bits(component,
+ TAS2562_PWR_CTRL,
+ TAS2562_MODE_MASK, TAS2562_MUTE);
+ break;
+ case SND_SOC_BIAS_OFF:
+ snd_soc_component_update_bits(component,
+ TAS2562_PWR_CTRL,
+ TAS2562_MODE_MASK, TAS2562_SHUTDOWN);
+ break;
+
+ default:
+ dev_err(tas2562->dev,
+ "wrong power level setting %d\n", level);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
+{
+ int samp_rate;
+ int ramp_rate;
+
+ switch (samplerate) {
+ case 7350:
+ ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
+ break;
+ case 8000:
+ ramp_rate = 0;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
+ break;
+ case 14700:
+ ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
+ break;
+ case 16000:
+ ramp_rate = 0;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
+ break;
+ case 22050:
+ ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
+ break;
+ case 24000:
+ ramp_rate = 0;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
+ break;
+ case 29400:
+ ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
+ break;
+ case 32000:
+ ramp_rate = 0;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
+ break;
+ case 44100:
+ ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
+ break;
+ case 48000:
+ ramp_rate = 0;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
+ break;
+ case 88200:
+ ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
+ break;
+ case 96000:
+ ramp_rate = 0;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
+ break;
+ case 176400:
+ ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
+ break;
+ case 192000:
+ ramp_rate = 0;
+ samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
+ break;
+ default:
+ dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",
+ __func__, samplerate);
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
+ TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
+ snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
+ TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
+
+ return 0;
+}
+
+static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
+ unsigned int tx_mask, unsigned int rx_mask,
+ int slots, int slot_width)
+{
+ struct snd_soc_component *component = dai->component;
+ struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
+ int ret = 0;
+
+ switch (slot_width) {
+ case 16:
+ ret = snd_soc_component_update_bits(component,
+ TAS2562_TDM_CFG2,
+ TAS2562_TDM_CFG2_RXLEN_MASK,
+ TAS2562_TDM_CFG2_RXLEN_16B);
+ break;
+ case 24:
+ ret = snd_soc_component_update_bits(component,
+ TAS2562_TDM_CFG2,
+ TAS2562_TDM_CFG2_RXLEN_MASK,
+ TAS2562_TDM_CFG2_RXLEN_24B);
+ break;
+ case 32:
+ ret = snd_soc_component_update_bits(component,
+ TAS2562_TDM_CFG2,
+ TAS2562_TDM_CFG2_RXLEN_MASK,
+ TAS2562_TDM_CFG2_RXLEN_32B);
+ break;
+
+ case 0:
+ /* Do not change slot width */
+ break;
+ default:
+ dev_err(tas2562->dev, "slot width not supported");
+ ret = -EINVAL;
+ }
+
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
+{
+ int ret;
+
+ switch (bitwidth) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ snd_soc_component_update_bits(tas2562->component,
+ TAS2562_TDM_CFG2,
+ TAS2562_TDM_CFG2_RXWLEN_MASK,
+ TAS2562_TDM_CFG2_RXWLEN_16B);
+ tas2562->v_sense_slot = tas2562->i_sense_slot + 2;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ snd_soc_component_update_bits(tas2562->component,
+ TAS2562_TDM_CFG2,
+ TAS2562_TDM_CFG2_RXWLEN_MASK,
+ TAS2562_TDM_CFG2_RXWLEN_24B);
+ tas2562->v_sense_slot = tas2562->i_sense_slot + 4;
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ snd_soc_component_update_bits(tas2562->component,
+ TAS2562_TDM_CFG2,
+ TAS2562_TDM_CFG2_RXWLEN_MASK,
+ TAS2562_TDM_CFG2_RXWLEN_32B);
+ tas2562->v_sense_slot = tas2562->i_sense_slot + 4;
+ break;
+
+ default:
+ dev_info(tas2562->dev, "Not supported params format\n");
+ }
+
+ ret = snd_soc_component_update_bits(tas2562->component,
+ TAS2562_TDM_CFG5,
+ TAS2562_TDM_CFG5_VSNS_EN | TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
+ TAS2562_TDM_CFG5_VSNS_EN | tas2562->v_sense_slot);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_component_update_bits(tas2562->component,
+ TAS2562_TDM_CFG6,
+ TAS2562_TDM_CFG6_ISNS_EN | TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
+ TAS2562_TDM_CFG6_ISNS_EN | tas2562->i_sense_slot);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int tas2562_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 tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
+ int ret;
+
+ ret = tas2562_set_bitwidth(tas2562, params_format(params));
+ if (ret) {
+ dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
+ return ret;
+ }
+
+ ret = tas2562_set_samplerate(tas2562, params_rate(params));
+ if (ret)
+ dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
+
+ return ret;
+}
+
+static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct snd_soc_component *component = dai->component;
+ struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
+ u8 tdm_rx_start_slot = 0, asi_cfg_1 = 0;
+ int ret;
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ asi_cfg_1 = 0;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
+ break;
+ default:
+ dev_err(tas2562->dev, "ASI format Inverse is not found\n");
+ return -EINVAL;
+ }
+
+ ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
+ TAS2562_TDM_CFG1_RX_EDGE_MASK,
+ asi_cfg_1);
+ if (ret < 0) {
+ dev_err(tas2562->dev, "Failed to set RX edge\n");
+ return ret;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case (SND_SOC_DAIFMT_I2S):
+ case (SND_SOC_DAIFMT_DSP_A):
+ case (SND_SOC_DAIFMT_DSP_B):
+ tdm_rx_start_slot = BIT(1);
+ break;
+ case (SND_SOC_DAIFMT_LEFT_J):
+ tdm_rx_start_slot = 0;
+ break;
+ default:
+ dev_err(tas2562->dev, "DAI Format is not found, fmt=0x%x\n",
+ fmt);
+ ret = -EINVAL;
+ break;
+ }
+
+ ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
+ TAS2562_TDM_CFG1_RX_OFFSET_MASK,
+ tdm_rx_start_slot);
+
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int tas2562_mute(struct snd_soc_dai *dai, int mute)
+{
+ struct snd_soc_component *component = dai->component;
+
+ return snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
+ TAS2562_MODE_MASK,
+ mute ? TAS2562_MUTE : 0);
+}
+
+static int tas2562_codec_probe(struct snd_soc_component *component)
+{
+ struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
+ int ret;
+
+ tas2562->component = component;
+
+ if (tas2562->sdz_gpio)
+ gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
+
+ ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
+ TAS2562_MODE_MASK, TAS2562_MUTE);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int tas2562_suspend(struct snd_soc_component *component)
+{
+ struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
+
+ regcache_cache_only(tas2562->regmap, true);
+ regcache_mark_dirty(tas2562->regmap);
+
+ if (tas2562->sdz_gpio)
+ gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);
+
+ return 0;
+}
+
+static int tas2562_resume(struct snd_soc_component *component)
+{
+ struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
+
+ if (tas2562->sdz_gpio)
+ gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
+
+ regcache_cache_only(tas2562->regmap, false);
+
+ return regcache_sync(tas2562->regmap);
+}
+#else
+#define tas2562_suspend NULL
+#define tas2562_resume NULL
+#endif
+
+static const char * const tas2562_ASI1_src[] = {
+ "I2C offset", "Left", "Right", "LeftRightDiv2",
+};
+
+static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,
+ tas2562_ASI1_src);
+
+static const struct snd_kcontrol_new tas2562_asi1_mux =
+ SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);
+
+static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_component *component =
+ snd_soc_dapm_to_component(w->dapm);
+ struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ dev_info(tas2562->dev, "SND_SOC_DAPM_POST_PMU\n");
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ dev_info(tas2562->dev, "SND_SOC_DAPM_PRE_PMD\n");
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);
+
+static const struct snd_kcontrol_new isense_switch =
+ SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
+ 1, 1);
+
+static const struct snd_kcontrol_new vsense_switch =
+ SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
+ 1, 1);
+
+static const struct snd_kcontrol_new tas2562_snd_controls[] = {
+ SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 0, 0x1c, 0,
+ tas2562_dac_tlv),
+};
+
+static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
+ SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
+ SND_SOC_DAPM_AIF_IN("DAC IN", "Playback", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+ SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),
+ SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),
+ SND_SOC_DAPM_SIGGEN("VMON"),
+ SND_SOC_DAPM_SIGGEN("IMON"),
+ SND_SOC_DAPM_OUTPUT("OUT"),
+};
+
+static const struct snd_soc_dapm_route tas2562_audio_map[] = {
+ {"ASI1 Sel", "I2C offset", "ASI1"},
+ {"ASI1 Sel", "Left", "ASI1"},
+ {"ASI1 Sel", "Right", "ASI1"},
+ {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
+ { "DAC", NULL, "DAC IN" },
+ { "OUT", NULL, "DAC" },
+ {"ISENSE", "Switch", "IMON"},
+ {"VSENSE", "Switch", "VMON"},
+};
+
+static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
+ .probe = tas2562_codec_probe,
+ .suspend = tas2562_suspend,
+ .resume = tas2562_resume,
+ .set_bias_level = tas2562_set_bias_level,
+ .controls = tas2562_snd_controls,
+ .num_controls = ARRAY_SIZE(tas2562_snd_controls),
+ .dapm_widgets = tas2562_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(tas2562_dapm_widgets),
+ .dapm_routes = tas2562_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(tas2562_audio_map),
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+ .non_legacy_dai_naming = 1,
+};
+
+static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
+ .hw_params = tas2562_hw_params,
+ .set_fmt = tas2562_set_dai_fmt,
+ .set_tdm_slot = tas2562_set_dai_tdm_slot,
+ .digital_mute = tas2562_mute,
+};
+
+static struct snd_soc_dai_driver tas2562_dai[] = {
+ {
+ .name = "tas2562-amplifier",
+ .id = 0,
+ .playback = {
+ .stream_name = "ASI1 Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = TAS2562_FORMATS,
+ },
+ .ops = &tas2562_speaker_dai_ops,
+ },
+};
+
+static const struct regmap_range_cfg tas2562_ranges[] = {
+ {
+ .range_min = 0,
+ .range_max = 5 * 128,
+ .selector_reg = TAS2562_PAGE_CTRL,
+ .selector_mask = 0xff,
+ .selector_shift = 0,
+ .window_start = 0,
+ .window_len = 128,
+ },
+};
+
+static const struct reg_default tas2562_reg_defaults[] = {
+ { TAS2562_PAGE_CTRL, 0x00 },
+ { TAS2562_SW_RESET, 0x00 },
+ { TAS2562_PWR_CTRL, 0x0e },
+ { TAS2562_PB_CFG1, 0x20 },
+ { TAS2562_TDM_CFG0, 0x09 },
+ { TAS2562_TDM_CFG1, 0x02 },
+};
+
+static const struct regmap_config tas2562_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = 5 * 128,
+ .cache_type = REGCACHE_RBTREE,
+ .reg_defaults = tas2562_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
+ .ranges = tas2562_ranges,
+ .num_ranges = ARRAY_SIZE(tas2562_ranges),
+};
+
+static int tas2562_parse_dt(struct tas2562_data *tas2562)
+{
+ struct device *dev = tas2562->dev;
+ int ret = 0;
+
+ tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down-gpio",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(tas2562->sdz_gpio)) {
+ if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER) {
+ tas2562->sdz_gpio = NULL;
+ return -EPROBE_DEFER;
+ }
+ }
+
+ ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
+ &tas2562->i_sense_slot);
+ if (ret)
+ dev_err(dev, "Looking up %s property failed %d\n",
+ "ti,imon-slot-no", ret);
+
+ return ret;
+}
+
+static int tas2562_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = &client->dev;
+ struct tas2562_data *data;
+ int ret;
+
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->client = client;
+ data->dev = &client->dev;
+
+ tas2562_parse_dt(data);
+
+ data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
+ if (IS_ERR(data->regmap)) {
+ ret = PTR_ERR(data->regmap);
+ dev_err(dev, "failed to allocate register map: %d\n", ret);
+ return ret;
+ }
+
+ dev_set_drvdata(&client->dev, data);
+
+ return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
+ tas2562_dai,
+ ARRAY_SIZE(tas2562_dai));
+
+}
+
+static const struct i2c_device_id tas2562_id[] = {
+ { "tas2562", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, tas2562_id);
+
+static const struct of_device_id tas2562_of_match[] = {
+ { .compatible = "ti,tas2562", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, tas2562_of_match);
+
+static struct i2c_driver tas2562_i2c_driver = {
+ .driver = {
+ .name = "tas2562",
+ .of_match_table = of_match_ptr(tas2562_of_match),
+ },
+ .probe = tas2562_probe,
+ .id_table = tas2562_id,
+};
+
+module_i2c_driver(tas2562_i2c_driver);
+
+MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
+MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-03 02:50:57 +0000