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ASoC: wcd-mbhc: add support to read new headset detection parameters

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To config different headset detection parameters for different hardware, add
two new headset detection parameters in device tree and read it in mbhc driver.

Change-Id: I10457b7d5eae54eba8a4cd273885a63ebad3ccb3
Signed-off-by: Meng Wang <mwang@codeaurora.org>
This commit is contained in:
Meng Wang 2017-09-15 10:35:44 +08:00
parent 383f3df747
commit 4d6a6bef32
3 changed files with 49 additions and 13 deletions
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46
asoc/codecs/wcd-mbhc-adc.c
View file

@ -370,11 +370,18 @@ static bool wcd_mbhc_adc_check_for_spl_headset(struct wcd_mbhc *mbhc,
* btn press/relesae for HEADSET type during correct work.
*/
output_mv = wcd_measure_adc_once(mbhc, MUX_CTL_IN2P);
adc_threshold = ((WCD_MBHC_ADC_HS_THRESHOLD_MV *
if (mbhc->hs_thr)
adc_threshold = mbhc->hs_thr;
else
adc_threshold = ((WCD_MBHC_ADC_HS_THRESHOLD_MV *
wcd_mbhc_get_micbias(mbhc))/WCD_MBHC_ADC_MICBIAS_MV);
adc_hph_threshold = ((WCD_MBHC_ADC_HPH_THRESHOLD_MV *
wcd_mbhc_get_micbias(mbhc))/
WCD_MBHC_ADC_MICBIAS_MV);
if (mbhc->hph_thr)
adc_hph_threshold = mbhc->hph_thr;
else
adc_hph_threshold = ((WCD_MBHC_ADC_HPH_THRESHOLD_MV *
wcd_mbhc_get_micbias(mbhc))/
WCD_MBHC_ADC_MICBIAS_MV);
if (output_mv > adc_threshold || output_mv < adc_hph_threshold) {
spl_hs = false;
@ -426,8 +433,10 @@ static bool wcd_is_special_headset(struct wcd_mbhc *mbhc)
return false;
}
}
adc_threshold = ((WCD_MBHC_ADC_HS_THRESHOLD_MV *
if (mbhc->hs_thr)
adc_threshold = mbhc->hs_thr;
else
adc_threshold = ((WCD_MBHC_ADC_HS_THRESHOLD_MV *
wcd_mbhc_get_micbias(mbhc)) /
WCD_MBHC_ADC_MICBIAS_MV);
@ -556,14 +565,25 @@ static void wcd_micbias_disable(struct wcd_mbhc *mbhc)
}
}
static int wcd_mbhc_get_plug_from_adc(int adc_result)
static int wcd_mbhc_get_plug_from_adc(struct wcd_mbhc *mbhc, int adc_result)
{
enum wcd_mbhc_plug_type plug_type = MBHC_PLUG_TYPE_INVALID;
u32 hph_thr = 0, hs_thr = 0;
if (adc_result < WCD_MBHC_ADC_HPH_THRESHOLD_MV)
if (mbhc->hs_thr)
hs_thr = mbhc->hs_thr;
else
hs_thr = WCD_MBHC_ADC_HS_THRESHOLD_MV;
if (mbhc->hph_thr)
hph_thr = mbhc->hph_thr;
else
hph_thr = WCD_MBHC_ADC_HPH_THRESHOLD_MV;
if (adc_result < hph_thr)
plug_type = MBHC_PLUG_TYPE_HEADPHONE;
else if (adc_result > WCD_MBHC_ADC_HS_THRESHOLD_MV)
else if (adc_result > hs_thr)
plug_type = MBHC_PLUG_TYPE_HIGH_HPH;
else
plug_type = MBHC_PLUG_TYPE_HEADSET;
@ -612,7 +632,7 @@ static void wcd_correct_swch_plug(struct work_struct *work)
}
/* Find plug type */
output_mv = wcd_measure_adc_continuous(mbhc);
plug_type = wcd_mbhc_get_plug_from_adc(output_mv);
plug_type = wcd_mbhc_get_plug_from_adc(mbhc, output_mv);
/*
* Report plug type if it is either headset or headphone
@ -667,7 +687,7 @@ static void wcd_correct_swch_plug(struct work_struct *work)
* instead of hogging system by contineous polling, wait for
* sometime and re-check stop request again.
*/
plug_type = wcd_mbhc_get_plug_from_adc(output_mv);
plug_type = wcd_mbhc_get_plug_from_adc(mbhc, output_mv);
if ((output_mv > WCD_MBHC_ADC_HS_THRESHOLD_MV) &&
(spl_hs_count < WCD_MBHC_SPL_HS_CNT)) {
@ -713,7 +733,7 @@ static void wcd_correct_swch_plug(struct work_struct *work)
no_gnd_mic_swap_cnt++;
pt_gnd_mic_swap_cnt = 0;
plug_type = wcd_mbhc_get_plug_from_adc(
output_mv);
mbhc, output_mv);
if ((no_gnd_mic_swap_cnt <
GND_MIC_SWAP_THRESHOLD) &&
(spl_hs_count != WCD_MBHC_SPL_HS_CNT)) {
@ -747,7 +767,7 @@ static void wcd_correct_swch_plug(struct work_struct *work)
plug_type);
if (plug_type != MBHC_PLUG_TYPE_GND_MIC_SWAP) {
plug_type = wcd_mbhc_get_plug_from_adc(
output_mv);
mbhc, output_mv);
if (!spl_hs_reported &&
spl_hs_count == WCD_MBHC_SPL_HS_CNT) {
spl_hs_reported = true;

14
asoc/codecs/wcd-mbhc-v2.c
View file

@ -1838,6 +1838,8 @@ int wcd_mbhc_init(struct wcd_mbhc *mbhc, struct snd_soc_codec *codec,
struct snd_soc_card *card = codec->component.card;
const char *hph_switch = "qcom,msm-mbhc-hphl-swh";
const char *gnd_switch = "qcom,msm-mbhc-gnd-swh";
const char *hs_thre = "qcom,msm-mbhc-hs-mic-max-threshold-mv";
const char *hph_thre = "qcom,msm-mbhc-hs-mic-min-threshold-mv";
pr_debug("%s: enter\n", __func__);
@ -1855,6 +1857,18 @@ int wcd_mbhc_init(struct wcd_mbhc *mbhc, struct snd_soc_codec *codec,
goto err;
}
ret = of_property_read_u32(card->dev->of_node, hs_thre,
&(mbhc->hs_thr));
if (ret)
dev_dbg(card->dev,
"%s: missing %s in dt node\n", __func__, hs_thre);
ret = of_property_read_u32(card->dev->of_node, hph_thre,
&(mbhc->hph_thr));
if (ret)
dev_dbg(card->dev,
"%s: missing %s in dt node\n", __func__, hph_thre);
ret = of_property_read_u32_array(card->dev->of_node,
"qcom,msm-mbhc-moist-cfg",
hph_moist_config, 3);

2
asoc/codecs/wcd-mbhc-v2.h
View file

@ -518,6 +518,8 @@ struct wcd_mbhc {
bool in_swch_irq_handler;
bool hphl_swh; /*track HPHL switch NC / NO */
bool gnd_swh; /*track GND switch NC / NO */
u32 hs_thr;
u32 hph_thr;
u32 moist_vref;
u32 moist_iref;
u32 moist_rref;