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-rw-r--r--include/linux/mfd/wm8994/registers.h16
-rw-r--r--sound/soc/codecs/wm8994.c264
-rw-r--r--sound/soc/codecs/wm8994.h3
3 files changed, 264 insertions, 19 deletions
diff --git a/include/linux/mfd/wm8994/registers.h b/include/linux/mfd/wm8994/registers.h
index 83a9caec0e43..ebfc92fdcd77 100644
--- a/include/linux/mfd/wm8994/registers.h
+++ b/include/linux/mfd/wm8994/registers.h
@@ -242,6 +242,7 @@
#define WM8994_GPIO_4 0x703
#define WM8994_GPIO_5 0x704
#define WM8994_GPIO_6 0x705
+#define WM1811_JACKDET_CTRL 0x705
#define WM8994_GPIO_7 0x706
#define WM8994_GPIO_8 0x707
#define WM8994_GPIO_9 0x708
@@ -1852,6 +1853,9 @@
/*
* R57 (0x39) - AntiPOP (2)
*/
+#define WM1811_JACKDET_MODE_MASK 0x0180 /* JACKDET_MODE - [8:7] */
+#define WM1811_JACKDET_MODE_SHIFT 7 /* JACKDET_MODE - [8:7] */
+#define WM1811_JACKDET_MODE_WIDTH 2 /* JACKDET_MODE - [8:7] */
#define WM8994_MICB2_DISCH 0x0100 /* MICB2_DISCH */
#define WM8994_MICB2_DISCH_MASK 0x0100 /* MICB2_DISCH */
#define WM8994_MICB2_DISCH_SHIFT 8 /* MICB2_DISCH */
@@ -4187,6 +4191,18 @@
#define WM8994_STL_SEL_WIDTH 1 /* STL_SEL */
/*
+ * R1797 (0x705) - JACKDET Ctrl
+ */
+#define WM1811_JACKDET_DB 0x0100 /* JACKDET_DB */
+#define WM1811_JACKDET_DB_MASK 0x0100 /* JACKDET_DB */
+#define WM1811_JACKDET_DB_SHIFT 8 /* JACKDET_DB */
+#define WM1811_JACKDET_DB_WIDTH 1 /* JACKDET_DB */
+#define WM1811_JACKDET_LVL 0x0040 /* JACKDET_LVL */
+#define WM1811_JACKDET_LVL_MASK 0x0040 /* JACKDET_LVL */
+#define WM1811_JACKDET_LVL_SHIFT 6 /* JACKDET_LVL */
+#define WM1811_JACKDET_LVL_WIDTH 1 /* JACKDET_LVL */
+
+/*
* R1824 (0x720) - Pull Control (1)
*/
#define WM8994_DMICDAT2_PU 0x0800 /* DMICDAT2_PU */
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index e65745bc1003..2e28f472b963 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -38,6 +38,11 @@
#include "wm8994.h"
#include "wm_hubs.h"
+#define WM1811_JACKDET_MODE_NONE 0x0000
+#define WM1811_JACKDET_MODE_JACK 0x0100
+#define WM1811_JACKDET_MODE_MIC 0x0080
+#define WM1811_JACKDET_MODE_AUDIO 0x0180
+
#define WM8994_NUM_DRC 3
#define WM8994_NUM_EQ 3
@@ -55,23 +60,34 @@ static int wm8994_retune_mobile_base[] = {
static void wm8958_default_micdet(u16 status, void *data);
-static const struct {
+struct wm8958_micd_rate {
int sysclk;
bool idle;
int start;
int rate;
-} wm8958_micd_rates[] = {
+};
+
+static const struct wm8958_micd_rate micdet_rates[] = {
{ 32768, true, 1, 4 },
{ 32768, false, 1, 1 },
{ 44100 * 256, true, 7, 10 },
{ 44100 * 256, false, 7, 10 },
};
+static const struct wm8958_micd_rate jackdet_rates[] = {
+ { 32768, true, 0, 1 },
+ { 32768, false, 0, 1 },
+ { 44100 * 256, true, 7, 10 },
+ { 44100 * 256, false, 7, 10 },
+};
+
static void wm8958_micd_set_rate(struct snd_soc_codec *codec)
{
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
int best, i, sysclk, val;
bool idle;
+ const struct wm8958_micd_rate *rates;
+ int num_rates;
if (wm8994->jack_cb != wm8958_default_micdet)
return;
@@ -84,19 +100,27 @@ static void wm8958_micd_set_rate(struct snd_soc_codec *codec)
else
sysclk = wm8994->aifclk[0];
+ if (wm8994->jackdet) {
+ rates = jackdet_rates;
+ num_rates = ARRAY_SIZE(jackdet_rates);
+ } else {
+ rates = micdet_rates;
+ num_rates = ARRAY_SIZE(micdet_rates);
+ }
+
best = 0;
- for (i = 0; i < ARRAY_SIZE(wm8958_micd_rates); i++) {
- if (wm8958_micd_rates[i].idle != idle)
+ for (i = 0; i < num_rates; i++) {
+ if (rates[i].idle != idle)
continue;
- if (abs(wm8958_micd_rates[i].sysclk - sysclk) <
- abs(wm8958_micd_rates[best].sysclk - sysclk))
+ if (abs(rates[i].sysclk - sysclk) <
+ abs(rates[best].sysclk - sysclk))
best = i;
- else if (wm8958_micd_rates[best].idle != idle)
+ else if (rates[best].idle != idle)
best = i;
}
- val = wm8958_micd_rates[best].start << WM8958_MICD_BIAS_STARTTIME_SHIFT
- | wm8958_micd_rates[best].rate << WM8958_MICD_RATE_SHIFT;
+ val = rates[best].start << WM8958_MICD_BIAS_STARTTIME_SHIFT
+ | rates[best].rate << WM8958_MICD_RATE_SHIFT;
snd_soc_update_bits(codec, WM8958_MIC_DETECT_1,
WM8958_MICD_BIAS_STARTTIME_MASK |
@@ -762,6 +786,74 @@ SOC_SINGLE_TLV("MIXINL IN1RP Boost Volume", WM8994_INPUT_MIXER_1, 8, 1, 0,
mixin_boost_tlv),
};
+/* We run all mode setting through a function to enforce audio mode */
+static void wm1811_jackdet_set_mode(struct snd_soc_codec *codec, u16 mode)
+{
+ struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
+
+ if (wm8994->active_refcount)
+ mode = WM1811_JACKDET_MODE_AUDIO;
+
+ snd_soc_update_bits(codec, WM8994_ANTIPOP_2,
+ WM1811_JACKDET_MODE_MASK, mode);
+
+ if (mode == WM1811_JACKDET_MODE_MIC)
+ msleep(2);
+}
+
+static void active_reference(struct snd_soc_codec *codec)
+{
+ struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
+
+ mutex_lock(&wm8994->accdet_lock);
+
+ wm8994->active_refcount++;
+
+ dev_dbg(codec->dev, "Active refcount incremented, now %d\n",
+ wm8994->active_refcount);
+
+ if (wm8994->active_refcount == 1) {
+ /* If we're using jack detection go into audio mode */
+ if (wm8994->jackdet && wm8994->jack_cb) {
+ snd_soc_update_bits(codec, WM8994_ANTIPOP_2,
+ WM1811_JACKDET_MODE_MASK,
+ WM1811_JACKDET_MODE_AUDIO);
+ msleep(2);
+ }
+ }
+
+ mutex_unlock(&wm8994->accdet_lock);
+}
+
+static void active_dereference(struct snd_soc_codec *codec)
+{
+ struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
+ u16 mode;
+
+ mutex_lock(&wm8994->accdet_lock);
+
+ wm8994->active_refcount--;
+
+ dev_dbg(codec->dev, "Active refcount decremented, now %d\n",
+ wm8994->active_refcount);
+
+ if (wm8994->active_refcount == 0) {
+ /* Go into appropriate detection only mode */
+ if (wm8994->jackdet && wm8994->jack_cb) {
+ if (wm8994->jack_mic || wm8994->mic_detecting)
+ mode = WM1811_JACKDET_MODE_MIC;
+ else
+ mode = WM1811_JACKDET_MODE_JACK;
+
+ snd_soc_update_bits(codec, WM8994_ANTIPOP_2,
+ WM1811_JACKDET_MODE_MASK,
+ mode);
+ }
+ }
+
+ mutex_unlock(&wm8994->accdet_lock);
+}
+
static int clk_sys_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
@@ -1919,6 +2011,8 @@ static int _wm8994_set_fll(struct snd_soc_codec *codec, int id, int src,
if (freq_out) {
/* Enable VMID if we need it */
if (!was_enabled) {
+ active_reference(codec);
+
switch (control->type) {
case WM8994:
vmid_reference(codec);
@@ -1962,6 +2056,8 @@ static int _wm8994_set_fll(struct snd_soc_codec *codec, int id, int src,
default:
break;
}
+
+ active_dereference(codec);
}
}
@@ -2091,6 +2187,9 @@ static int wm8994_set_bias_level(struct snd_soc_codec *codec,
default:
break;
}
+
+ if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY)
+ active_reference(codec);
break;
case SND_SOC_BIAS_STANDBY:
@@ -2143,6 +2242,9 @@ static int wm8994_set_bias_level(struct snd_soc_codec *codec,
WM8994_LINEOUT2_DISCH);
}
+ if (codec->dapm.bias_level == SND_SOC_BIAS_PREPARE)
+ active_dereference(codec);
+
/* MICBIAS into bypass mode on newer devices */
switch (control->type) {
case WM8958:
@@ -2168,6 +2270,7 @@ static int wm8994_set_bias_level(struct snd_soc_codec *codec,
break;
}
codec->dapm.bias_level = level;
+
return 0;
}
@@ -2715,6 +2818,9 @@ static int wm8994_suspend(struct snd_soc_codec *codec, pm_message_t state)
snd_soc_update_bits(codec, WM8994_MICBIAS, WM8994_MICD_ENA, 0);
break;
case WM1811:
+ snd_soc_update_bits(codec, WM8994_ANTIPOP_2,
+ WM1811_JACKDET_MODE_MASK, 0);
+ /* Fall through */
case WM8958:
snd_soc_update_bits(codec, WM8958_MIC_DETECT_1,
WM8958_MICD_ENA, 0);
@@ -2784,6 +2890,13 @@ static int wm8994_resume(struct snd_soc_codec *codec)
WM8994_MICD_ENA, WM8994_MICD_ENA);
break;
case WM1811:
+ if (wm8994->jackdet && wm8994->jack_cb) {
+ /* Restart from idle */
+ snd_soc_update_bits(codec, WM8994_ANTIPOP_2,
+ WM1811_JACKDET_MODE_MASK,
+ WM1811_JACKDET_MODE_JACK);
+ break;
+ }
case WM8958:
if (wm8994->jack_cb)
snd_soc_update_bits(codec, WM8958_MIC_DETECT_1,
@@ -3047,17 +3160,20 @@ static void wm8958_default_micdet(u16 status, void *data)
dev_dbg(codec->dev, "MICDET %x\n", status);
- /* If nothing present then clear our statuses */
+ /* Either nothing present or just starting detection */
if (!(status & WM8958_MICD_STS)) {
- dev_dbg(codec->dev, "Detected open circuit\n");
- wm8994->jack_mic = false;
- wm8994->mic_detecting = true;
+ if (!wm8994->jackdet) {
+ /* If nothing present then clear our statuses */
+ dev_dbg(codec->dev, "Detected open circuit\n");
+ wm8994->jack_mic = false;
+ wm8994->mic_detecting = true;
- wm8958_micd_set_rate(codec);
-
- snd_soc_jack_report(wm8994->micdet[0].jack, 0,
- wm8994->btn_mask | SND_JACK_HEADSET);
+ wm8958_micd_set_rate(codec);
+ snd_soc_jack_report(wm8994->micdet[0].jack, 0,
+ wm8994->btn_mask |
+ SND_JACK_HEADSET);
+ }
return;
}
@@ -3085,6 +3201,15 @@ static void wm8958_default_micdet(u16 status, void *data)
snd_soc_jack_report(wm8994->micdet[0].jack, SND_JACK_HEADPHONE,
SND_JACK_HEADSET);
+
+ /* If we have jackdet that will detect removal */
+ if (wm8994->jackdet) {
+ snd_soc_update_bits(codec, WM8958_MIC_DETECT_1,
+ WM8958_MICD_ENA, 0);
+
+ wm1811_jackdet_set_mode(codec,
+ WM1811_JACKDET_MODE_JACK);
+ }
}
/* Report short circuit as a button */
@@ -3113,6 +3238,56 @@ static void wm8958_default_micdet(u16 status, void *data)
}
}
+static irqreturn_t wm1811_jackdet_irq(int irq, void *data)
+{
+ struct wm8994_priv *wm8994 = data;
+ struct snd_soc_codec *codec = wm8994->codec;
+ int reg;
+
+ mutex_lock(&wm8994->accdet_lock);
+
+ reg = snd_soc_read(codec, WM1811_JACKDET_CTRL);
+ if (reg < 0) {
+ dev_err(codec->dev, "Failed to read jack status: %d\n", reg);
+ mutex_unlock(&wm8994->accdet_lock);
+ return IRQ_NONE;
+ }
+
+ dev_dbg(codec->dev, "JACKDET %x\n", reg);
+
+ if (reg & WM1811_JACKDET_LVL) {
+ dev_dbg(codec->dev, "Jack detected\n");
+
+ snd_soc_jack_report(wm8994->micdet[0].jack,
+ SND_JACK_MECHANICAL, SND_JACK_MECHANICAL);
+
+ /*
+ * Start off measument of microphone impedence to find
+ * out what's actually there.
+ */
+ wm8994->mic_detecting = true;
+ wm1811_jackdet_set_mode(codec, WM1811_JACKDET_MODE_MIC);
+ snd_soc_update_bits(codec, WM8958_MIC_DETECT_1,
+ WM8958_MICD_ENA, WM8958_MICD_ENA);
+ } else {
+ dev_dbg(codec->dev, "Jack not detected\n");
+
+ snd_soc_jack_report(wm8994->micdet[0].jack, 0,
+ SND_JACK_MECHANICAL | SND_JACK_HEADSET |
+ wm8994->btn_mask);
+
+ wm8994->mic_detecting = false;
+ wm8994->jack_mic = false;
+ snd_soc_update_bits(codec, WM8958_MIC_DETECT_1,
+ WM8958_MICD_ENA, 0);
+ wm1811_jackdet_set_mode(codec, WM1811_JACKDET_MODE_JACK);
+ }
+
+ mutex_unlock(&wm8994->accdet_lock);
+
+ return IRQ_HANDLED;
+}
+
/**
* wm8958_mic_detect - Enable microphone detection via the WM8958 IRQ
*
@@ -3175,8 +3350,22 @@ int wm8958_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
snd_soc_update_bits(codec, WM8958_MIC_DETECT_2,
WM8958_MICD_LVL_SEL_MASK, micd_lvl_sel);
- snd_soc_update_bits(codec, WM8958_MIC_DETECT_1,
- WM8958_MICD_ENA, WM8958_MICD_ENA);
+ WARN_ON(codec->dapm.bias_level > SND_SOC_BIAS_STANDBY);
+
+ /*
+ * If we can use jack detection start off with that,
+ * otherwise jump straight to microphone detection.
+ */
+ if (wm8994->jackdet) {
+ snd_soc_update_bits(codec, WM8994_LDO_1,
+ WM8994_LDO1_DISCH, 0);
+ wm1811_jackdet_set_mode(codec,
+ WM1811_JACKDET_MODE_JACK);
+ } else {
+ snd_soc_update_bits(codec, WM8958_MIC_DETECT_1,
+ WM8958_MICD_ENA, WM8958_MICD_ENA);
+ }
+
} else {
snd_soc_update_bits(codec, WM8958_MIC_DETECT_1,
WM8958_MICD_ENA, 0);
@@ -3193,6 +3382,18 @@ static irqreturn_t wm8958_mic_irq(int irq, void *data)
struct snd_soc_codec *codec = wm8994->codec;
int reg, count;
+ mutex_lock(&wm8994->accdet_lock);
+
+ /*
+ * Jack detection may have detected a removal simulataneously
+ * with an update of the MICDET status; if so it will have
+ * stopped detection and we can ignore this interrupt.
+ */
+ if (!(snd_soc_read(codec, WM8958_MIC_DETECT_1) & WM8958_MICD_ENA)) {
+ mutex_unlock(&wm8994->accdet_lock);
+ return IRQ_HANDLED;
+ }
+
/* We may occasionally read a detection without an impedence
* range being provided - if that happens loop again.
*/
@@ -3200,6 +3401,7 @@ static irqreturn_t wm8958_mic_irq(int irq, void *data)
do {
reg = snd_soc_read(codec, WM8958_MIC_DETECT_3);
if (reg < 0) {
+ mutex_unlock(&wm8994->accdet_lock);
dev_err(codec->dev,
"Failed to read mic detect status: %d\n",
reg);
@@ -3230,6 +3432,8 @@ static irqreturn_t wm8958_mic_irq(int irq, void *data)
dev_warn(codec->dev, "Accessory detection with no callback\n");
out:
+ mutex_unlock(&wm8994->accdet_lock);
+
return IRQ_HANDLED;
}
@@ -3280,6 +3484,8 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec)
wm8994->pdata = dev_get_platdata(codec->dev->parent);
wm8994->codec = codec;
+ mutex_init(&wm8994->accdet_lock);
+
for (i = 0; i < ARRAY_SIZE(wm8994->fll_locked); i++)
init_completion(&wm8994->fll_locked[i]);
@@ -3428,6 +3634,21 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec)
}
}
+ switch (control->type) {
+ case WM1811:
+ if (wm8994->revision > 1) {
+ ret = wm8994_request_irq(wm8994->wm8994,
+ WM8994_IRQ_GPIO(6),
+ wm1811_jackdet_irq, "JACKDET",
+ wm8994);
+ if (ret == 0)
+ wm8994->jackdet = true;
+ }
+ break;
+ default:
+ break;
+ }
+
wm8994->fll_locked_irq = true;
for (i = 0; i < ARRAY_SIZE(wm8994->fll_locked); i++) {
ret = wm8994_request_irq(wm8994->wm8994,
@@ -3650,6 +3871,8 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec)
return 0;
err_irq:
+ if (wm8994->jackdet)
+ wm8994_free_irq(wm8994->wm8994, WM8994_IRQ_GPIO(6), wm8994);
wm8994_free_irq(wm8994->wm8994, WM8994_IRQ_MIC2_SHRT, wm8994);
wm8994_free_irq(wm8994->wm8994, WM8994_IRQ_MIC2_DET, wm8994);
wm8994_free_irq(wm8994->wm8994, WM8994_IRQ_MIC1_SHRT, wm8994);
@@ -3688,6 +3911,9 @@ static int wm8994_codec_remove(struct snd_soc_codec *codec)
wm8994_free_irq(wm8994->wm8994, WM8994_IRQ_TEMP_SHUT, codec);
wm8994_free_irq(wm8994->wm8994, WM8994_IRQ_TEMP_WARN, codec);
+ if (wm8994->jackdet)
+ wm8994_free_irq(wm8994->wm8994, WM8994_IRQ_GPIO(6), wm8994);
+
switch (control->type) {
case WM8994:
if (wm8994->micdet_irq)
diff --git a/sound/soc/codecs/wm8994.h b/sound/soc/codecs/wm8994.h
index 8622bc4db2fe..6ef3f11878c6 100644
--- a/sound/soc/codecs/wm8994.h
+++ b/sound/soc/codecs/wm8994.h
@@ -85,6 +85,7 @@ struct wm8994_priv {
bool fll_locked_irq;
int vmid_refcount;
+ int active_refcount;
int dac_rates[2];
int lrclk_shared[2];
@@ -126,10 +127,12 @@ struct wm8994_priv {
const char **enh_eq_texts;
struct soc_enum enh_eq_enum;
+ struct mutex accdet_lock;
struct wm8994_micdet micdet[2];
bool mic_detecting;
bool jack_mic;
int btn_mask;
+ bool jackdet;
wm8958_micdet_cb jack_cb;
void *jack_cb_data;
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-24 11:06:07 +0300