From: Stefan Binding sbinding@opensource.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@opensource.cirrus.com Signed-off-by: Vitaly Rodionov vitalyr@opensource.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)