diff options
Diffstat (limited to 'sound/soc/codecs/wcd-mbhc-v2.c')
| -rw-r--r-- | sound/soc/codecs/wcd-mbhc-v2.c | 76 |
1 files changed, 67 insertions, 9 deletions
diff --git a/sound/soc/codecs/wcd-mbhc-v2.c b/sound/soc/codecs/wcd-mbhc-v2.c index 405128ccb4b0..7488a150a138 100644 --- a/sound/soc/codecs/wcd-mbhc-v2.c +++ b/sound/soc/codecs/wcd-mbhc-v2.c @@ -1022,6 +1022,52 @@ static int wcd_mbhc_get_plug_from_adc(struct wcd_mbhc *mbhc, int adc_result) return plug_type; } +static int wcd_mbhc_get_spl_hs_thres(struct wcd_mbhc *mbhc) +{ + int hs_threshold, micbias_mv; + + micbias_mv = wcd_mbhc_get_micbias(mbhc); + if (mbhc->cfg->hs_thr && mbhc->cfg->micb_mv != WCD_MBHC_ADC_MICBIAS_MV) { + if (mbhc->cfg->micb_mv == micbias_mv) + hs_threshold = mbhc->cfg->hs_thr; + else + hs_threshold = (mbhc->cfg->hs_thr * micbias_mv) / mbhc->cfg->micb_mv; + } else { + hs_threshold = ((WCD_MBHC_ADC_HS_THRESHOLD_MV * micbias_mv) / + WCD_MBHC_ADC_MICBIAS_MV); + } + return hs_threshold; +} + +static bool wcd_mbhc_check_for_spl_headset(struct wcd_mbhc *mbhc) +{ + bool is_spl_hs = false; + int output_mv, hs_threshold, hph_threshold; + + if (!mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic) + return false; + + /* Bump up MIC_BIAS2 to 2.7V */ + mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic(mbhc->component, MIC_BIAS_2, true); + usleep_range(10000, 10100); + + output_mv = wcd_measure_adc_once(mbhc, MUX_CTL_IN2P); + hs_threshold = wcd_mbhc_get_spl_hs_thres(mbhc); + hph_threshold = wcd_mbhc_adc_get_hph_thres(mbhc); + + if (!(output_mv > hs_threshold || output_mv < hph_threshold)) + is_spl_hs = true; + + /* Back MIC_BIAS2 to 1.8v if the type is not special headset */ + if (!is_spl_hs) { + mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic(mbhc->component, MIC_BIAS_2, false); + /* Add 10ms delay for micbias to settle */ + usleep_range(10000, 10100); + } + + return is_spl_hs; +} + static void wcd_correct_swch_plug(struct work_struct *work) { struct wcd_mbhc *mbhc; @@ -1029,12 +1075,14 @@ static void wcd_correct_swch_plug(struct work_struct *work) enum wcd_mbhc_plug_type plug_type = MBHC_PLUG_TYPE_INVALID; unsigned long timeout; int pt_gnd_mic_swap_cnt = 0; - int output_mv, cross_conn, hs_threshold, try = 0; + int output_mv, cross_conn, hs_threshold, try = 0, micbias_mv; + bool is_spl_hs = false; bool is_pa_on; mbhc = container_of(work, struct wcd_mbhc, correct_plug_swch); component = mbhc->component; + micbias_mv = wcd_mbhc_get_micbias(mbhc); hs_threshold = wcd_mbhc_adc_get_hs_thres(mbhc); /* Mask ADC COMPLETE interrupt */ @@ -1097,6 +1145,16 @@ correct_plug_type: plug_type = wcd_mbhc_get_plug_from_adc(mbhc, output_mv); is_pa_on = wcd_mbhc_read_field(mbhc, WCD_MBHC_HPH_PA_EN); + if (output_mv > hs_threshold && !is_spl_hs) { + is_spl_hs = wcd_mbhc_check_for_spl_headset(mbhc); + output_mv = wcd_measure_adc_once(mbhc, MUX_CTL_IN2P); + + if (is_spl_hs) { + hs_threshold *= wcd_mbhc_get_micbias(mbhc); + hs_threshold /= micbias_mv; + } + } + if ((output_mv <= hs_threshold) && !is_pa_on) { /* Check for cross connection*/ cross_conn = wcd_check_cross_conn(mbhc); @@ -1122,14 +1180,19 @@ correct_plug_type: } } - if (output_mv > hs_threshold) /* cable is extension cable */ + /* cable is extension cable */ + if (output_mv > hs_threshold || mbhc->force_linein) plug_type = MBHC_PLUG_TYPE_HIGH_HPH; } wcd_mbhc_bcs_enable(mbhc, plug_type, true); - if (plug_type == MBHC_PLUG_TYPE_HIGH_HPH) - wcd_mbhc_write_field(mbhc, WCD_MBHC_ELECT_ISRC_EN, 1); + if (plug_type == MBHC_PLUG_TYPE_HIGH_HPH) { + if (is_spl_hs) + plug_type = MBHC_PLUG_TYPE_HEADSET; + else + wcd_mbhc_write_field(mbhc, WCD_MBHC_ELECT_ISRC_EN, 1); + } wcd_mbhc_write_field(mbhc, WCD_MBHC_ADC_MODE, 0); wcd_mbhc_write_field(mbhc, WCD_MBHC_ADC_EN, 0); @@ -1176,7 +1239,6 @@ static irqreturn_t wcd_mbhc_adc_hs_rem_irq(int irq, void *data) struct wcd_mbhc *mbhc = data; unsigned long timeout; int adc_threshold, output_mv, retry = 0; - bool hphpa_on = false; mutex_lock(&mbhc->lock); timeout = jiffies + msecs_to_jiffies(WCD_FAKE_REMOVAL_MIN_PERIOD_MS); @@ -1210,10 +1272,6 @@ static irqreturn_t wcd_mbhc_adc_hs_rem_irq(int irq, void *data) wcd_mbhc_elec_hs_report_unplug(mbhc); wcd_mbhc_write_field(mbhc, WCD_MBHC_BTN_ISRC_CTL, 0); - if (hphpa_on) { - hphpa_on = false; - wcd_mbhc_write_field(mbhc, WCD_MBHC_HPH_PA_EN, 3); - } exit: mutex_unlock(&mbhc->lock); return IRQ_HANDLED; |