/*begin mod by fuhua for task: 8668750 on 2019-12-03 task id :8668750 */qcom,msm-hac-pa = <&tlmm 127 0>;qcom,msm-hac-pa-gpio = <&cdc_hac_pa_gpio>;
/*end   mod by fuhua for task: 8668750 on 2019-12-03 task id :8668750 */qcom,msm-mclk-freq = <9600000>;qcom,msm-mbhc-hphl-swh = <1>;
/*Begin Modified by fuhua.wang for defect_id: 8751408 on 2019 02.25 */qcom,msm-mbhc-gnd-swh = <0>;
/*End   Modified by fuhua.wang for defect_id: 8751408 on 2019 02.25 */
/*begin mod by fuhua for 4-plog headset on 2019-08-30 task id :8293309 */qcom,msm-hs-micbias-type = "internal";
/*end mod by fuhua for 4-plog headset on 2019-08-30 task id :8293309 */

106 		qcom,audio-routing =
107 				"RX_BIAS", "MCLK",
108 				"SPK_RX_BIAS", "MCLK",
109 				"INT_LDO_H", "MCLK",
110 				"RX_I2S_CLK", "MCLK",
111 				"TX_I2S_CLK", "MCLK",
112 				"MIC BIAS External", "Handset Mic",
113 /*begin mod by fuhua for 4-plog headset on 2019-08-30 task id :8293309 */
114 				"MIC BIAS Internal2", "Headset Mic",
115 /*end mod by fuhua for 4-plog headset on 2019-08-30 task id :8293309 */
116 				"MIC BIAS External", "Secondary Mic",
117 				"AMIC1", "MIC BIAS External",
118 /*begin mod by fuhua for 4-plog headset on 2019-08-30 task id :8293309 */
119 				"AMIC2", "MIC BIAS Internal2",
120 /*end mod by fuhua for 4-plog headset on 2019-08-30 task id :8293309 */
121 				"AMIC3", "MIC BIAS External",
122 				"ADC1_IN", "ADC1_OUT",
123 				"ADC2_IN", "ADC2_OUT",
124 				"ADC3_IN", "ADC3_OUT",
125 				"PDM_IN_RX1", "PDM_OUT_RX1",
126 				"PDM_IN_RX2", "PDM_OUT_RX2",
127 				"PDM_IN_RX3", "PDM_OUT_RX3";

cross-conn-det {
qcom,pins = <&gp 97>;
qcom,num-grp-pins = <1>;
qcom,pin-func = <0>;
label = "cross-conn-det-sw";cross_conn_det_act: lines_on {drive-strength = <8>;output-low;bias-pull-down;};cross_conn_det_sus: lines_off {drive-strength = <2>;bias-disable;};
};

pinctrl-names = "cdc_lines_act",
"cdc_lines_sus",
//"cross_conn_det_act",
//"cross_conn_det_sus",
"vdd_spkdrv_act",
"vdd_spkdrv_sus";
pinctrl-0 = <&cdc_pdm_lines_act &vdd_spkdrv_act>;
pinctrl-1 = <&cdc_pdm_lines_sus &vdd_spkdrv_sus>;
// pinctrl-2 = <&cross_conn_det_act>;
// pinctrl-3 = <&cross_conn_det_sus>;
// qcom,cdc-us-euro-gpios = <&msm_gpio 97 0>;

595  static void wcd_correct_swch_plug(struct work_struct *work)
596  {......745  			if ((pt_gnd_mic_swap_cnt == mbhc->swap_thr) &&
746  				(plug_type == MBHC_PLUG_TYPE_GND_MIC_SWAP)) {
747  				/*
748  				 * if switch is toggled, check again,
749  				 * otherwise report unsupported plug
750  				 */
+++					plug_type = MBHC_PLUG_TYPE_HEADPHONE;
751  				if (mbhc->mbhc_cfg->swap_gnd_mic &&
752  					mbhc->mbhc_cfg->swap_gnd_mic(codec,
753  					true)) {
754  					pr_debug("%s: US_EU gpio present,flip switch\n"
755  						, __func__);
756  					continue;
757  				}
758  			}

88  	.key_code[0] = KEY_MEDIA,
89  	.key_code[1] = KEY_VOICECOMMAND,
90  	.key_code[2] = KEY_VOLUMEUP,
91  	.key_code[3] = KEY_VOLUMEDOWN,
92  	.key_code[4] = 0,
93  	.key_code[5] = 0,
94  	.key_code[6] = 0,
95  	.key_code[7] = 0,

1588  	/*
1589  	 * In SW we are maintaining two sets of threshold register
1590  	 * one for current source and another for Micbias.
1591  	 * all btn_low corresponds to threshold for current source
1592  	 * all bt_high corresponds to threshold for Micbias
1593  	 * Below thresholds are based on following resistances
1594  	 * 0-70    == Button 0
1595  	 * 110-180 == Button 1
1596  	 * 210-290 == Button 2
1597  	 * 360-680 == Button 3
1598  	 */
1599  	btn_low[0] = 75;
1600  	btn_high[0] = 75;
1601  /*Begin Modified by fuhua.wang for defect_id: 8697471 on 2019 12.19 */
1602  	btn_low[1] = 120;
1603  	btn_high[1] = 120;
1604  /*End   Modified by fuhua.wang for defect_id: 8697471 on 2019 12.19 */
1605  	btn_low[2] = 225;
1606  	btn_high[2] = 225;
1607  	btn_low[3] = 450;
1608  	btn_high[3] = 450;
1609  	btn_low[4] = 500;
1610  	btn_high[4] = 500;
1611  
1612  	return msm8952_wcd_cal;

/* called under codec_resource_lock acquisition */
static void wcd_mbhc_adc_detect_plug_type(struct wcd_mbhc *mbhc)
{struct snd_soc_codec *codec = mbhc->codec;pr_debug("%s: enter\n", __func__);WCD_MBHC_RSC_ASSERT_LOCKED(mbhc);if (mbhc->mbhc_cb->hph_pull_down_ctrl)mbhc->mbhc_cb->hph_pull_down_ctrl(codec, false);WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_DETECTION_DONE, 0);if (mbhc->mbhc_cb->mbhc_micbias_control) {mbhc->mbhc_cb->mbhc_micbias_control(codec, MIC_BIAS_2,MICB_ENABLE);} else {pr_err("%s: Mic Bias is not enabled\n", __func__);return;}/* Re-initialize button press completion object */reinit_completion(&mbhc->btn_press_compl);wcd_schedule_hs_detect_plug(mbhc, &mbhc->correct_plug_swch);pr_debug("%s: leave\n", __func__);
}

static void wcd_correct_swch_plug(struct work_struct *work)
{......do {cross_conn = wcd_check_cross_conn(mbhc);try++;} while (try < mbhc->swap_thr);if (cross_conn > 0) {plug_type = MBHC_PLUG_TYPE_GND_MIC_SWAP;pr_debug("%s: cross connection found, Plug type %d\n",__func__, plug_type);goto correct_plug_type;}//如果设置了交叉检测，即欧美标转换，那么则进入继续确认的步骤，否则直接通过`wcd_mbhc_find_plug_and_report`上报耳机type了。  ....../** Report plug type if it is either headset or headphone* else start the 3 sec loop*/if ((plug_type == MBHC_PLUG_TYPE_HEADSET ||plug_type == MBHC_PLUG_TYPE_HEADPHONE) &&(!wcd_swch_level_remove(mbhc))) {WCD_MBHC_RSC_LOCK(mbhc);wcd_mbhc_find_plug_and_report(mbhc, plug_type);//直接通过`wcd_mbhc_find_plug_and_report`上报耳机typeWCD_MBHC_RSC_UNLOCK(mbhc);}......//进入继续确认的步
correct_plug_type:timeout = jiffies + msecs_to_jiffies(HS_DETECT_PLUG_TIME_MS);while (!time_after(jiffies, timeout)) {

//wcd-mbhc-v2.c
void wcd_mbhc_report_plug(struct wcd_mbhc *mbhc, int insertion,enum snd_jack_types jack_type)
{......else{jack_type = SND_JACK_LINEOUT;mbhc->force_linein = true;mbhc->current_plug = MBHC_PLUG_TYPE_HIGH_HPH;if (mbhc->hph_status) {mbhc->hph_status &= ~(SND_JACK_HEADSET |SND_JACK_LINEOUT |SND_JACK_UNSUPPORTED);wcd_mbhc_jack_report(mbhc,&mbhc->headset_jack,mbhc->hph_status,WCD_MBHC_JACK_MASK);}

int wcd_mbhc_init(struct wcd_mbhc *mbhc, struct snd_soc_codec *codec,const struct wcd_mbhc_cb *mbhc_cb,const struct wcd_mbhc_intr *mbhc_cdc_intr_ids,struct wcd_mbhc_register *wcd_mbhc_regs,bool impedance_det_en)
{......ret = mbhc->mbhc_cb->request_irq(codec,mbhc->intr_ids->mbhc_btn_press_intr,wcd_mbhc_btn_press_handler,"Button Press detect", mbhc);

mbhc->is_btn_press = true;
msec_val = jiffies_to_msecs(jiffies - mbhc->jiffies_atreport);....../* If switch interrupt already kicked in, ignore button press */
if (mbhc->in_swch_irq_handler) {pr_debug("%s: Swtich level changed, ignore button press\n",__func__);goto done;
}
mask = wcd_mbhc_get_button_mask(mbhc);
if (mask == SND_JACK_BTN_0)mbhc->btn_press_intr = true;//Begin-modify-by-fuhua.wang-for-task 8384912 on 20190926//if (mbhc->current_plug != MBHC_PLUG_TYPE_HEADSET) {if (mbhc->current_plug != MBHC_PLUG_TYPE_HEADSET && !mbhc->is_selfie_stick_insert) { //End-add-by-fuhua.wang-for-task 8384912 on 20190926pr_err("%s: Plug isn't headset, ignore button press\n",__func__);goto done;
}

static irqreturn_t wcd_mbhc_release_handler(int irq, void *data)
{......wcd_mbhc_jack_report(mbhc, &mbhc->button_jack,0, mbhc->buttons_pressed);} else {if (mbhc->in_swch_irq_handler) {pr_debug("%s: Switch irq kicked in, ignore\n",__func__);} else {pr_debug("%s: Reporting btn press\n",__func__);wcd_mbhc_jack_report(mbhc,&mbhc->button_jack,mbhc->buttons_pressed,mbhc->buttons_pressed);pr_debug("%s: Reporting btn release\n",__func__);wcd_mbhc_jack_report(mbhc,&mbhc->button_jack,0, mbhc->buttons_pressed);

static void wcd_btn_lpress_fn(struct work_struct *work)
{struct delayed_work *dwork;struct wcd_mbhc *mbhc;s16 btn_result = 0;pr_debug("%s: Enter\n", __func__);dwork = to_delayed_work(work);mbhc = container_of(dwork, struct wcd_mbhc, mbhc_btn_dwork);WCD_MBHC_REG_READ(WCD_MBHC_BTN_RESULT, btn_result);if (mbhc->current_plug == MBHC_PLUG_TYPE_HEADSET) {pr_debug("%s: Reporting long button press event, btn_result: %d\n",__func__, btn_result);wcd_mbhc_jack_report(mbhc, &mbhc->button_jack,mbhc->buttons_pressed, mbhc->buttons_pressed);}pr_debug("%s: leave\n", __func__);mbhc->mbhc_cb->lock_sleep(mbhc, false);
}