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Message-ID: <20210916102750.9212-2-vitalyr@opensource.cirrus.com>
Date: Thu, 16 Sep 2021 11:27:50 +0100
From: Vitaly Rodionov <vitalyr@...nsource.cirrus.com>
To: James Schulman <james.schulman@...rus.com>,
David Rhodes <david.rhodes@...rus.com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
CC: <alsa-devel@...a-project.org>, <patches@...nsource.cirrus.com>,
<linux-kernel@...r.kernel.org>,
Stefan Binding <sbinding@...nsource.cirrus.com>
Subject: [PATCH v1 1/1] ASoC: cs42l42: Implement Manual Type detection as fallback
From: Stefan Binding <sbinding@...nsource.cirrus.com>
Some headsets are not detected correctly by Automatic Type Detection
on cs42l42. Instead, Manual Type Detection can be used to give a
more accurate value.
Signed-off-by: Stefan Binding <sbinding@...nsource.cirrus.com>
Signed-off-by: Vitaly Rodionov <vitalyr@...nsource.cirrus.com>
---
sound/soc/codecs/cs42l42.c | 104 ++++++++++++++++++++++++++++++++-----
sound/soc/codecs/cs42l42.h | 54 +++++++++++++++++++
2 files changed, 146 insertions(+), 12 deletions(-)
diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index fb1e4c33e27d..c586ebff45f7 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -1046,37 +1046,117 @@ static struct snd_soc_dai_driver cs42l42_dai = {
.ops = &cs42l42_ops,
};
-static void cs42l42_process_hs_type_detect(struct cs42l42_private *cs42l42)
+static void cs42l42_manual_hs_type_detect(struct cs42l42_private *cs42l42)
{
unsigned int hs_det_status;
- unsigned int int_status;
+ unsigned int hs_det_comp;
+ unsigned int hs_det_sw;
- /* Mask the auto detect interrupt */
+ /* Set hs detect to manual, active mode */
regmap_update_bits(cs42l42->regmap,
- CS42L42_CODEC_INT_MASK,
- CS42L42_PDN_DONE_MASK |
- CS42L42_HSDET_AUTO_DONE_MASK,
- (1 << CS42L42_PDN_DONE_SHIFT) |
- (1 << CS42L42_HSDET_AUTO_DONE_SHIFT));
+ CS42L42_HSDET_CTL2,
+ CS42L42_HSDET_CTRL_MASK |
+ CS42L42_HSDET_SET_MASK |
+ CS42L42_HSBIAS_REF_MASK |
+ CS42L42_HSDET_AUTO_TIME_MASK,
+ (1 << CS42L42_HSDET_CTRL_SHIFT) |
+ (0 << CS42L42_HSDET_SET_SHIFT) |
+ (0 << CS42L42_HSBIAS_REF_SHIFT) |
+ (0 << CS42L42_HSDET_AUTO_TIME_SHIFT));
+
+ /* Open the SW_HSB_HS3 switch and close SW_HSB_HS4 for a Type 1 headset. */
+ regmap_write(cs42l42->regmap, CS42L42_HS_SWITCH_CTL, CS42L42_HSDET_SW_COMP1);
+
+ regmap_read(cs42l42->regmap, CS42L42_HS_DET_STATUS, &hs_det_status);
+
+ hs_det_comp = (hs_det_status & CS42L42_HSDET_COMP1_OUT_MASK) >>
+ CS42L42_HSDET_COMP1_OUT_SHIFT;
+
+ /* Close the SW_HSB_HS3 switch for a Type 2 headset. */
+ regmap_write(cs42l42->regmap, CS42L42_HS_SWITCH_CTL, CS42L42_HSDET_SW_COMP2);
+
+ regmap_read(cs42l42->regmap, CS42L42_HS_DET_STATUS, &hs_det_status);
+
+ hs_det_comp |= ((hs_det_status & CS42L42_HSDET_COMP2_OUT_MASK) >>
+ CS42L42_HSDET_COMP2_OUT_SHIFT) << 1;
+
+ switch (hs_det_comp) {
+ case CS42L42_HSDET_COMP_TYPE1:
+ cs42l42->hs_type = CS42L42_PLUG_CTIA;
+ hs_det_sw = CS42L42_HSDET_SW_TYPE1;
+ break;
+ case CS42L42_HSDET_COMP_TYPE2:
+ cs42l42->hs_type = CS42L42_PLUG_OMTP;
+ hs_det_sw = CS42L42_HSDET_SW_TYPE2;
+ break;
+ case CS42L42_HSDET_COMP_TYPE3:
+ cs42l42->hs_type = CS42L42_PLUG_HEADPHONE;
+ hs_det_sw = CS42L42_HSDET_SW_TYPE3;
+ break;
+ default:
+ cs42l42->hs_type = CS42L42_PLUG_INVALID;
+ hs_det_sw = CS42L42_HSDET_SW_TYPE4;
+ break;
+ }
- /* Set hs detect to automatic, disabled mode */
+ /* Set Switches */
+ regmap_write(cs42l42->regmap, CS42L42_HS_SWITCH_CTL, hs_det_sw);
+
+ /* Set HSDET mode to Manual—Disabled */
regmap_update_bits(cs42l42->regmap,
CS42L42_HSDET_CTL2,
CS42L42_HSDET_CTRL_MASK |
CS42L42_HSDET_SET_MASK |
CS42L42_HSBIAS_REF_MASK |
CS42L42_HSDET_AUTO_TIME_MASK,
- (2 << CS42L42_HSDET_CTRL_SHIFT) |
- (2 << CS42L42_HSDET_SET_SHIFT) |
+ (0 << CS42L42_HSDET_CTRL_SHIFT) |
+ (0 << CS42L42_HSDET_SET_SHIFT) |
(0 << CS42L42_HSBIAS_REF_SHIFT) |
- (3 << CS42L42_HSDET_AUTO_TIME_SHIFT));
+ (0 << CS42L42_HSDET_AUTO_TIME_SHIFT));
+}
+
+static void cs42l42_process_hs_type_detect(struct cs42l42_private *cs42l42)
+{
+ unsigned int hs_det_status;
+ unsigned int int_status;
/* Read and save the hs detection result */
regmap_read(cs42l42->regmap, CS42L42_HS_DET_STATUS, &hs_det_status);
+ /* Mask the auto detect interrupt */
+ regmap_update_bits(cs42l42->regmap,
+ CS42L42_CODEC_INT_MASK,
+ CS42L42_PDN_DONE_MASK |
+ CS42L42_HSDET_AUTO_DONE_MASK,
+ (1 << CS42L42_PDN_DONE_SHIFT) |
+ (1 << CS42L42_HSDET_AUTO_DONE_SHIFT));
+
+
cs42l42->hs_type = (hs_det_status & CS42L42_HSDET_TYPE_MASK) >>
CS42L42_HSDET_TYPE_SHIFT;
+ /* Run Manual detection if auto detect has not found a headset.
+ * We Re-Run with Manual Detection if the original detection was invalid or headphones,
+ * to ensure that a headset mic is detected in all cases.
+ */
+ if (cs42l42->hs_type == CS42L42_PLUG_INVALID ||
+ cs42l42->hs_type == CS42L42_PLUG_HEADPHONE) {
+ dev_dbg(cs42l42->component->dev, "Running Manual Detection Fallback\n");
+ cs42l42_manual_hs_type_detect(cs42l42);
+ } else {
+ /* Set hs detect to automatic, disabled mode */
+ regmap_update_bits(cs42l42->regmap,
+ CS42L42_HSDET_CTL2,
+ CS42L42_HSDET_CTRL_MASK |
+ CS42L42_HSDET_SET_MASK |
+ CS42L42_HSBIAS_REF_MASK |
+ CS42L42_HSDET_AUTO_TIME_MASK,
+ (2 << CS42L42_HSDET_CTRL_SHIFT) |
+ (2 << CS42L42_HSDET_SET_SHIFT) |
+ (0 << CS42L42_HSBIAS_REF_SHIFT) |
+ (3 << CS42L42_HSDET_AUTO_TIME_SHIFT));
+ }
+
/* Set up button detection */
if ((cs42l42->hs_type == CS42L42_PLUG_CTIA) ||
(cs42l42->hs_type == CS42L42_PLUG_OMTP)) {
diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h
index 8734f6828f3e..2aeabba73e05 100644
--- a/sound/soc/codecs/cs42l42.h
+++ b/sound/soc/codecs/cs42l42.h
@@ -228,6 +228,60 @@
#define CS42L42_PLUG_HEADPHONE 2
#define CS42L42_PLUG_INVALID 3
+#define CS42L42_HSDET_SW_COMP1 ((0 << CS42L42_SW_GNDHS_HS4_SHIFT) | \
+ (1 << CS42L42_SW_GNDHS_HS3_SHIFT) | \
+ (1 << CS42L42_SW_HSB_HS4_SHIFT) | \
+ (0 << CS42L42_SW_HSB_HS3_SHIFT) | \
+ (0 << CS42L42_SW_HSB_FILT_HS4_SHIFT) | \
+ (1 << CS42L42_SW_HSB_FILT_HS3_SHIFT) | \
+ (0 << CS42L42_SW_REF_HS4_SHIFT) | \
+ (1 << CS42L42_SW_REF_HS3_SHIFT))
+#define CS42L42_HSDET_SW_COMP2 ((1 << CS42L42_SW_GNDHS_HS4_SHIFT) | \
+ (0 << CS42L42_SW_GNDHS_HS3_SHIFT) | \
+ (0 << CS42L42_SW_HSB_HS4_SHIFT) | \
+ (1 << CS42L42_SW_HSB_HS3_SHIFT) | \
+ (1 << CS42L42_SW_HSB_FILT_HS4_SHIFT) | \
+ (0 << CS42L42_SW_HSB_FILT_HS3_SHIFT) | \
+ (1 << CS42L42_SW_REF_HS4_SHIFT) | \
+ (0 << CS42L42_SW_REF_HS3_SHIFT))
+#define CS42L42_HSDET_SW_TYPE1 ((0 << CS42L42_SW_GNDHS_HS4_SHIFT) | \
+ (1 << CS42L42_SW_GNDHS_HS3_SHIFT) | \
+ (1 << CS42L42_SW_HSB_HS4_SHIFT) | \
+ (0 << CS42L42_SW_HSB_HS3_SHIFT) | \
+ (0 << CS42L42_SW_HSB_FILT_HS4_SHIFT) | \
+ (1 << CS42L42_SW_HSB_FILT_HS3_SHIFT) | \
+ (0 << CS42L42_SW_REF_HS4_SHIFT) | \
+ (1 << CS42L42_SW_REF_HS3_SHIFT))
+#define CS42L42_HSDET_SW_TYPE2 ((1 << CS42L42_SW_GNDHS_HS4_SHIFT) | \
+ (0 << CS42L42_SW_GNDHS_HS3_SHIFT) | \
+ (0 << CS42L42_SW_HSB_HS4_SHIFT) | \
+ (1 << CS42L42_SW_HSB_HS3_SHIFT) | \
+ (1 << CS42L42_SW_HSB_FILT_HS4_SHIFT) | \
+ (0 << CS42L42_SW_HSB_FILT_HS3_SHIFT) | \
+ (1 << CS42L42_SW_REF_HS4_SHIFT) | \
+ (0 << CS42L42_SW_REF_HS3_SHIFT))
+#define CS42L42_HSDET_SW_TYPE3 ((1 << CS42L42_SW_GNDHS_HS4_SHIFT) | \
+ (1 << CS42L42_SW_GNDHS_HS3_SHIFT) | \
+ (0 << CS42L42_SW_HSB_HS4_SHIFT) | \
+ (0 << CS42L42_SW_HSB_HS3_SHIFT) | \
+ (1 << CS42L42_SW_HSB_FILT_HS4_SHIFT) | \
+ (1 << CS42L42_SW_HSB_FILT_HS3_SHIFT) | \
+ (1 << CS42L42_SW_REF_HS4_SHIFT) | \
+ (1 << CS42L42_SW_REF_HS3_SHIFT))
+#define CS42L42_HSDET_SW_TYPE4 ((0 << CS42L42_SW_GNDHS_HS4_SHIFT) | \
+ (1 << CS42L42_SW_GNDHS_HS3_SHIFT) | \
+ (1 << CS42L42_SW_HSB_HS4_SHIFT) | \
+ (0 << CS42L42_SW_HSB_HS3_SHIFT) | \
+ (0 << CS42L42_SW_HSB_FILT_HS4_SHIFT) | \
+ (1 << CS42L42_SW_HSB_FILT_HS3_SHIFT) | \
+ (0 << CS42L42_SW_REF_HS4_SHIFT) | \
+ (1 << CS42L42_SW_REF_HS3_SHIFT))
+
+#define CS42L42_HSDET_COMP_TYPE1 1
+#define CS42L42_HSDET_COMP_TYPE2 2
+#define CS42L42_HSDET_COMP_TYPE3 0
+#define CS42L42_HSDET_COMP_TYPE4 3
+
#define CS42L42_HS_CLAMP_DISABLE (CS42L42_PAGE_11 + 0x29)
#define CS42L42_HS_CLAMP_DISABLE_SHIFT 0
#define CS42L42_HS_CLAMP_DISABLE_MASK (1 << CS42L42_HS_CLAMP_DISABLE_SHIFT)
--
2.25.1
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