diff options
Diffstat (limited to 'sound/soc/codecs/wcd-mbhc-v2.c')
| -rw-r--r-- | sound/soc/codecs/wcd-mbhc-v2.c | 106 |
1 files changed, 95 insertions, 11 deletions
diff --git a/sound/soc/codecs/wcd-mbhc-v2.c b/sound/soc/codecs/wcd-mbhc-v2.c index 405128ccb4b0..1911750f7445 100644 --- a/sound/soc/codecs/wcd-mbhc-v2.c +++ b/sound/soc/codecs/wcd-mbhc-v2.c @@ -5,6 +5,7 @@ #include <linux/init.h> #include <linux/slab.h> #include <linux/device.h> +#include <linux/pm_runtime.h> #include <linux/printk.h> #include <linux/delay.h> #include <linux/kernel.h> @@ -711,6 +712,16 @@ static irqreturn_t wcd_mbhc_hphr_ocp_irq(int irq, void *data) static int wcd_mbhc_initialise(struct wcd_mbhc *mbhc) { struct snd_soc_component *component = mbhc->component; + int ret; + + ret = pm_runtime_get_sync(component->dev); + if (ret < 0 && ret != -EACCES) { + dev_err_ratelimited(component->dev, + "pm_runtime_get_sync failed in %s, ret %d\n", + __func__, ret); + pm_runtime_put_noidle(component->dev); + return ret; + } mutex_lock(&mbhc->lock); @@ -751,6 +762,9 @@ static int wcd_mbhc_initialise(struct wcd_mbhc *mbhc) mutex_unlock(&mbhc->lock); + pm_runtime_mark_last_busy(component->dev); + pm_runtime_put_autosuspend(component->dev); + return 0; } @@ -1022,6 +1036,52 @@ 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 +1089,23 @@ 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; + int ret; mbhc = container_of(work, struct wcd_mbhc, correct_plug_swch); component = mbhc->component; + ret = pm_runtime_get_sync(component->dev); + if (ret < 0 && ret != -EACCES) { + dev_err_ratelimited(component->dev, + "pm_runtime_get_sync failed in %s, ret %d\n", + __func__, ret); + pm_runtime_put_noidle(component->dev); + return; + } + micbias_mv = wcd_mbhc_get_micbias(mbhc); hs_threshold = wcd_mbhc_adc_get_hs_thres(mbhc); /* Mask ADC COMPLETE interrupt */ @@ -1097,6 +1168,16 @@ 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); @@ -1110,7 +1191,7 @@ correct_plug_type: pt_gnd_mic_swap_cnt = 0; plug_type = wcd_mbhc_get_plug_from_adc(mbhc, output_mv); continue; - } else if (cross_conn < 0) /* Error */ + } else /* Error if (cross_conn < 0) */ continue; if (pt_gnd_mic_swap_cnt == GND_MIC_SWAP_THRESHOLD) { @@ -1122,14 +1203,19 @@ 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); @@ -1169,6 +1255,9 @@ exit: if (mbhc->mbhc_cb->hph_pull_down_ctrl) mbhc->mbhc_cb->hph_pull_down_ctrl(component, true); + + pm_runtime_mark_last_busy(component->dev); + pm_runtime_put_autosuspend(component->dev); } static irqreturn_t wcd_mbhc_adc_hs_rem_irq(int irq, void *data) @@ -1176,7 +1265,6 @@ 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 +1298,6 @@ 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; @@ -1222,7 +1306,7 @@ exit: static irqreturn_t wcd_mbhc_adc_hs_ins_irq(int irq, void *data) { struct wcd_mbhc *mbhc = data; - u8 clamp_state = 0; + u8 clamp_state; u8 clamp_retry = WCD_MBHC_FAKE_INS_RETRY; /* |