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Diffstat (limited to 'sound/soc/codecs/nau8821.c')
-rw-r--r--sound/soc/codecs/nau8821.c148
1 files changed, 104 insertions, 44 deletions
diff --git a/sound/soc/codecs/nau8821.c b/sound/soc/codecs/nau8821.c
index 2de818377484..4a72b94e8410 100644
--- a/sound/soc/codecs/nau8821.c
+++ b/sound/soc/codecs/nau8821.c
@@ -29,11 +29,14 @@
#define NAU_FVCO_MAX 100000000
#define NAU_FVCO_MIN 90000000
+#define NAU8821_BUTTON SND_JACK_BTN_0
+
/* the maximum frequency of CLK_ADC and CLK_DAC */
#define CLK_DA_AD_MAX 6144000
static int nau8821_configure_sysclk(struct nau8821 *nau8821,
int clk_id, unsigned int freq);
+static bool nau8821_is_jack_inserted(struct regmap *regmap);
struct nau8821_fll {
int mclk_src;
@@ -493,7 +496,33 @@ static int nau8821_output_dac_event(struct snd_soc_dapm_widget *w,
return 0;
}
+static int system_clock_control(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *k, int event)
+{
+ struct snd_soc_component *component =
+ snd_soc_dapm_to_component(w->dapm);
+ struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
+
+ if (SND_SOC_DAPM_EVENT_OFF(event)) {
+ dev_dbg(nau8821->dev, "system clock control : POWER OFF\n");
+ /* Set clock source to disable or internal clock before the
+ * playback or capture end. Codec needs clock for Jack
+ * detection and button press if jack inserted; otherwise,
+ * the clock should be closed.
+ */
+ if (nau8821_is_jack_inserted(nau8821->regmap)) {
+ nau8821_configure_sysclk(nau8821,
+ NAU8821_CLK_INTERNAL, 0);
+ } else {
+ nau8821_configure_sysclk(nau8821, NAU8821_CLK_DIS, 0);
+ }
+ }
+ return 0;
+}
+
static const struct snd_soc_dapm_widget nau8821_dapm_widgets[] = {
+ SND_SOC_DAPM_SUPPLY("System Clock", SND_SOC_NOPM, 0, 0,
+ system_clock_control, SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("MICBIAS", NAU8821_R74_MIC_BIAS,
NAU8821_MICBIAS_POWERUP_SFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("DMIC Clock", SND_SOC_NOPM, 0, 0,
@@ -605,6 +634,9 @@ static const struct snd_soc_dapm_route nau8821_dapm_routes[] = {
{"AIFTX", NULL, "ADCL Digital path"},
{"AIFTX", NULL, "ADCR Digital path"},
+ {"AIFTX", NULL, "System Clock"},
+ {"AIFRX", NULL, "System Clock"},
+
{"DDACL", NULL, "AIFRX"},
{"DDACR", NULL, "AIFRX"},
@@ -638,28 +670,40 @@ static const struct snd_soc_dapm_route nau8821_dapm_routes[] = {
{"HPOR", NULL, "Class G"},
};
-static int nau8821_clock_check(struct nau8821 *nau8821,
- int stream, int rate, int osr)
+static const struct nau8821_osr_attr *
+nau8821_get_osr(struct nau8821 *nau8821, int stream)
{
- int osrate = 0;
+ unsigned int osr;
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ regmap_read(nau8821->regmap, NAU8821_R2C_DAC_CTRL1, &osr);
+ osr &= NAU8821_DAC_OVERSAMPLE_MASK;
if (osr >= ARRAY_SIZE(osr_dac_sel))
- return -EINVAL;
- osrate = osr_dac_sel[osr].osr;
+ return NULL;
+ return &osr_dac_sel[osr];
} else {
+ regmap_read(nau8821->regmap, NAU8821_R2B_ADC_RATE, &osr);
+ osr &= NAU8821_ADC_SYNC_DOWN_MASK;
if (osr >= ARRAY_SIZE(osr_adc_sel))
- return -EINVAL;
- osrate = osr_adc_sel[osr].osr;
+ return NULL;
+ return &osr_adc_sel[osr];
}
+}
- if (!osrate || rate * osrate > CLK_DA_AD_MAX) {
- dev_err(nau8821->dev,
- "exceed the maximum frequency of CLK_ADC or CLK_DAC");
+static int nau8821_dai_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
+ const struct nau8821_osr_attr *osr;
+
+ osr = nau8821_get_osr(nau8821, substream->stream);
+ if (!osr || !osr->osr)
return -EINVAL;
- }
- return 0;
+ return snd_pcm_hw_constraint_minmax(substream->runtime,
+ SNDRV_PCM_HW_PARAM_RATE,
+ 0, CLK_DA_AD_MAX / osr->osr);
}
static int nau8821_hw_params(struct snd_pcm_substream *substream,
@@ -667,7 +711,8 @@ static int nau8821_hw_params(struct snd_pcm_substream *substream,
{
struct snd_soc_component *component = dai->component;
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
- unsigned int val_len = 0, osr, ctrl_val, bclk_fs, clk_div;
+ unsigned int val_len = 0, ctrl_val, bclk_fs, clk_div;
+ const struct nau8821_osr_attr *osr;
nau8821->fs = params_rate(params);
/* CLK_DAC or CLK_ADC = OSR * FS
@@ -676,27 +721,19 @@ static int nau8821_hw_params(struct snd_pcm_substream *substream,
* values must be selected such that the maximum frequency is less
* than 6.144 MHz.
*/
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- regmap_read(nau8821->regmap, NAU8821_R2C_DAC_CTRL1, &osr);
- osr &= NAU8821_DAC_OVERSAMPLE_MASK;
- if (nau8821_clock_check(nau8821, substream->stream,
- nau8821->fs, osr)) {
- return -EINVAL;
- }
+ osr = nau8821_get_osr(nau8821, substream->stream);
+ if (!osr || !osr->osr)
+ return -EINVAL;
+ if (nau8821->fs * osr->osr > CLK_DA_AD_MAX)
+ return -EINVAL;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
regmap_update_bits(nau8821->regmap, NAU8821_R03_CLK_DIVIDER,
NAU8821_CLK_DAC_SRC_MASK,
- osr_dac_sel[osr].clk_src << NAU8821_CLK_DAC_SRC_SFT);
- } else {
- regmap_read(nau8821->regmap, NAU8821_R2B_ADC_RATE, &osr);
- osr &= NAU8821_ADC_SYNC_DOWN_MASK;
- if (nau8821_clock_check(nau8821, substream->stream,
- nau8821->fs, osr)) {
- return -EINVAL;
- }
+ osr->clk_src << NAU8821_CLK_DAC_SRC_SFT);
+ else
regmap_update_bits(nau8821->regmap, NAU8821_R03_CLK_DIVIDER,
NAU8821_CLK_ADC_SRC_MASK,
- osr_adc_sel[osr].clk_src << NAU8821_CLK_ADC_SRC_SFT);
- }
+ osr->clk_src << NAU8821_CLK_ADC_SRC_SFT);
/* make BCLK and LRC divde configuration if the codec as master. */
regmap_read(nau8821->regmap, NAU8821_R1D_I2S_PCM_CTRL2, &ctrl_val);
@@ -811,9 +848,11 @@ static int nau8821_digital_mute(struct snd_soc_dai *dai, int mute,
}
static const struct snd_soc_dai_ops nau8821_dai_ops = {
+ .startup = nau8821_dai_startup,
.hw_params = nau8821_hw_params,
.set_fmt = nau8821_set_dai_fmt,
.mute_stream = nau8821_digital_mute,
+ .no_capture_mute = 1,
};
#define NAU8821_RATES SNDRV_PCM_RATE_8000_192000
@@ -910,6 +949,20 @@ static void nau8821_eject_jack(struct nau8821 *nau8821)
/* Recover to normal channel input */
regmap_update_bits(regmap, NAU8821_R2B_ADC_RATE,
NAU8821_ADC_R_SRC_EN, 0);
+ if (nau8821->key_enable) {
+ regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK,
+ NAU8821_IRQ_KEY_RELEASE_EN |
+ NAU8821_IRQ_KEY_PRESS_EN,
+ NAU8821_IRQ_KEY_RELEASE_EN |
+ NAU8821_IRQ_KEY_PRESS_EN);
+ regmap_update_bits(regmap,
+ NAU8821_R12_INTERRUPT_DIS_CTRL,
+ NAU8821_IRQ_KEY_RELEASE_DIS |
+ NAU8821_IRQ_KEY_PRESS_DIS,
+ NAU8821_IRQ_KEY_RELEASE_DIS |
+ NAU8821_IRQ_KEY_PRESS_DIS);
+ }
+
}
static void nau8821_jdet_work(struct work_struct *work)
@@ -939,6 +992,15 @@ static void nau8821_jdet_work(struct work_struct *work)
*/
regmap_update_bits(regmap, NAU8821_R2B_ADC_RATE,
NAU8821_ADC_R_SRC_EN, NAU8821_ADC_R_SRC_EN);
+ if (nau8821->key_enable) {
+ regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK,
+ NAU8821_IRQ_KEY_RELEASE_EN |
+ NAU8821_IRQ_KEY_PRESS_EN, 0);
+ regmap_update_bits(regmap,
+ NAU8821_R12_INTERRUPT_DIS_CTRL,
+ NAU8821_IRQ_KEY_RELEASE_DIS |
+ NAU8821_IRQ_KEY_PRESS_DIS, 0);
+ }
} else {
dev_dbg(nau8821->dev, "Headphone connected\n");
event |= SND_JACK_HEADPHONE;
@@ -998,6 +1060,13 @@ static irqreturn_t nau8821_interrupt(int irq, void *data)
nau8821_eject_jack(nau8821);
event_mask |= SND_JACK_HEADSET;
clear_irq = NAU8821_JACK_EJECT_IRQ_MASK;
+ } else if (active_irq & NAU8821_KEY_SHORT_PRESS_IRQ) {
+ event |= NAU8821_BUTTON;
+ event_mask |= NAU8821_BUTTON;
+ clear_irq = NAU8821_KEY_SHORT_PRESS_IRQ;
+ } else if (active_irq & NAU8821_KEY_RELEASE_IRQ) {
+ event_mask = NAU8821_BUTTON;
+ clear_irq = NAU8821_KEY_RELEASE_IRQ;
} else if ((active_irq & NAU8821_JACK_INSERT_IRQ_MASK) ==
NAU8821_JACK_INSERT_DETECTED) {
regmap_update_bits(regmap, NAU8821_R71_ANALOG_ADC_1,
@@ -1429,7 +1498,6 @@ static const struct snd_soc_component_driver nau8821_component_driver = {
.dapm_routes = nau8821_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(nau8821_dapm_routes),
.suspend_bias_off = 1,
- .non_legacy_dai_naming = 1,
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
@@ -1489,6 +1557,7 @@ static void nau8821_print_device_properties(struct nau8821 *nau8821)
nau8821->jack_eject_debounce);
dev_dbg(dev, "dmic-clk-threshold: %d\n",
nau8821->dmic_clk_threshold);
+ dev_dbg(dev, "key_enable: %d\n", nau8821->key_enable);
}
static int nau8821_read_device_properties(struct device *dev,
@@ -1502,6 +1571,8 @@ static int nau8821_read_device_properties(struct device *dev,
"nuvoton,jkdet-pull-enable");
nau8821->jkdet_pull_up = device_property_read_bool(dev,
"nuvoton,jkdet-pull-up");
+ nau8821->key_enable = device_property_read_bool(dev,
+ "nuvoton,key-enable");
ret = device_property_read_u32(dev, "nuvoton,jkdet-polarity",
&nau8821->jkdet_polarity);
if (ret)
@@ -1625,8 +1696,7 @@ static int nau8821_setup_irq(struct nau8821 *nau8821)
return 0;
}
-static int nau8821_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int nau8821_i2c_probe(struct i2c_client *i2c)
{
struct device *dev = &i2c->dev;
struct nau8821 *nau8821 = dev_get_platdata(&i2c->dev);
@@ -1665,15 +1735,6 @@ static int nau8821_i2c_probe(struct i2c_client *i2c,
return ret;
}
-static int nau8821_i2c_remove(struct i2c_client *i2c_client)
-{
- struct nau8821 *nau8821 = i2c_get_clientdata(i2c_client);
-
- devm_free_irq(nau8821->dev, nau8821->irq, nau8821);
-
- return 0;
-}
-
static const struct i2c_device_id nau8821_i2c_ids[] = {
{ "nau8821", 0 },
{ }
@@ -1702,8 +1763,7 @@ static struct i2c_driver nau8821_driver = {
.of_match_table = of_match_ptr(nau8821_of_ids),
.acpi_match_table = ACPI_PTR(nau8821_acpi_match),
},
- .probe = nau8821_i2c_probe,
- .remove = nau8821_i2c_remove,
+ .probe_new = nau8821_i2c_probe,
.id_table = nau8821_i2c_ids,
};
module_i2c_driver(nau8821_driver);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.