Add gesture support for zinitix touch IC

Add single and double tap gesture support for
zinitix touch IC.

Change-Id: I23530196d21c8800845f2b5b81096006a7da2421
Signed-off-by: Wenge Zhu <zhuwg1@motorola.com>
Reviewed-on: https://gerrit.mot.com/2521947
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Jichao Zou <zoujc@motorola.com>
Submit-Approved: Jira Key

drivers/input/touchscreen/zinitix_ztw62x_mmi/zinitix.c

@@ -292,7 +292,6 @@ struct reg_ioctl {
 
 extern int get_lcd_attached(void);
 extern unsigned int system_rev;
-static volatile int __maybe_unused tpd_halt = 0;
 
 struct class *sec_class;
 /* end header file */
@@ -2096,7 +2095,7 @@ static irqreturn_t bt541_touch_work(int irq, void *data)
 	u32 tmp;
 	//u8 read_result = 1;
 	u8 palm = 0;
-#if USE_WAKEUP_GESTURE
+#if defined(USE_WAKEUP_GESTURE) || defined(CONFIG_INPUT_TOUCHSCREEN_MMI)
 	u16 gesture_flag=0;
 	int ret =0;
 #endif
@@ -2108,14 +2107,12 @@ static irqreturn_t bt541_touch_work(int irq, void *data)
 		return IRQ_HANDLED;
 	}
 
-
 #if ESD_TIMER_INTERVAL
 	esd_timer_stop(info);
 #endif
 #if USE_WAKEUP_GESTURE
 		if((tpd_halt)&&(info->work_state == SUSPEND)) //suspend state support gesture
 		{
-
 			dev_err(&client->dev," gesture wakeup ");
 			if (read_data(client, 0x126,(u8 *)&gesture_flag, 2) < 0) //0x126
 			{
@@ -2149,15 +2146,69 @@ static irqreturn_t bt541_touch_work(int irq, void *data)
 
 						ret=0;
 					}
-
 				}
-
 			}
 			goto out;
 		}
+#elif defined(CONFIG_INPUT_TOUCHSCREEN_MMI)
+		if((tpd_halt)&&(info->work_state == SUSPEND)) //suspend state support gesture
+		{
+			dev_info(&client->dev," gesture wakeup ");
+			if (read_data(client, 0x126,(u8 *)&gesture_flag, 2) < 0) //0x126
+			{
+				dev_err(&client->dev," gesture read reg error!!!\r\n");
+				ret=0;
+				/*eric add 20160920*/
+				write_cmd(client, BT541_CLEAR_INT_STATUS_CMD);
+			}
+			else
+			{
+				/*wake up*/
+				/*eric add 20160920*/
+				write_cmd(client, BT541_CLEAR_INT_STATUS_CMD);
 
+				/*1 single click*/
+				if(gesture_flag==1)
+				{
+					dev_info(&client->dev,"%s: got single tap event\n", __func__);
+					if (info->imports && info->imports->report_gesture) {
+						struct gesture_event_data event;
+
+						dev_info(&client->dev,"%s: report single tap gesture event\n", __func__);
+						event.evcode = 1;
+						/* call class method */
+						ret = info->imports->report_gesture(&event);
+					}
+				}
+				/*1 double click*/
+				else if (gesture_flag==2) {
+					dev_info(&client->dev,"%s: got double tap event\n", __func__);
+					if (info->imports && info->imports->report_gesture) {
+						struct gesture_event_data event;
+
+						dev_info(&client->dev,"%s: report double tap gesture event\n", __func__);
+						event.evcode = 4;
+						/* call class method */
+						ret = info->imports->report_gesture(&event);
+					}
+				}
+			        if (!ret) {
+#ifdef CONFIG_HAS_WAKELOCK
+					wake_lock_timeout(&info->gesture_wakelock, msecs_to_jiffies(3000));
+#else
+					PM_WAKEUP_EVENT(info->gesture_wakelock, 3000);
 #endif
+				}
 
+				if (write_reg(client, 0x126, 0) != 0)
+				{
+					dev_err(&client->dev," gesture write reg error!!!\r\n");
+					ret=0;
+				}
+			}
+			goto out;
+		}
+#endif
 
 	if (info->work_state != NOTHING) {
 		dev_err(&client->dev, "%s: Other process occupied\n", __func__);
@@ -2168,7 +2219,6 @@ static irqreturn_t bt541_touch_work(int irq, void *data)
 
 	info->work_state = NORMAL;
 
-
 	if (ts_read_coord(info) == false )
 	{
 		dev_err(&client->dev, "couldn't read touch_dev coord. read fail\r\n");
@@ -2453,25 +2503,10 @@ int zinitix_ts_mmi_gesture_suspend(struct device *dev)
 	struct bt541_ts_info *info = i2c_get_clientdata(client);
 
 	down(&info->work_lock);
-	//reset gesture register
-	if (write_reg(client, 0x126, 0) != I2C_SUCCESS) {
-		dev_err(dev, "%s: Reset gesture register error.\n", __func__);
-		up(&info->work_lock);
-		return -1;
-	}
-	//enable irq wake
-	enable_irq_wake(info->irq);
-	info->irq_enabled = true;
-	//send enable easy wake gesture cmd
-	if (write_reg(client, 0x011D, 0x0089) != I2C_SUCCESS) {
-		zinitix_printk("easy_wakeup_gesture write_reg[0x0089] failed!!!-------------\n");
-		up(&info->work_lock);
-		return -1;
-	}
-	//clear INT status
+	//software reset
 	for(i = 0; i < 3; i++) {
-		if (write_cmd(client, BT541_CLEAR_INT_STATUS_CMD) < 0) {
-			dev_err(&client->dev,"tpd_suspend fail to clear int(%d)\r\n", i);
+		if (write_cmd(client, BT541_SWRESET_CMD) < 0) {
+			dev_err(&client->dev,"tpd_suspend fail to sft  reset(%d)\r\n", i);
 			mdelay(10);
 			continue;
 		} else
@@ -2481,6 +2516,16 @@ int zinitix_ts_mmi_gesture_suspend(struct device *dev)
 		up(&info->work_lock);
 		return -1;
 	}
+	msleep(20);
+	//enable irq wake
+	enable_irq_wake(info->irq);
+	info->irq_enabled = true;
+	//send enable easy wake gesture cmd
+	if (write_reg(client, 0x011D, info->gesture_command) != I2C_SUCCESS) {
+		zinitix_printk("easy_wakeup_gesture write_reg[0x0089] failed!!!-------------\n");
+		up(&info->work_lock);
+		return -1;
+	}
 	//send idle cmd
 	for(i = 0; i < 3; i++) {
 		if (write_cmd(client, BT541_IDLE_CMD) < 0) {
@@ -6025,6 +6070,14 @@ static int bt541_ts_probe(struct i2c_client *client,
 	}
 #endif
 
+	PM_WAKEUP_REGISTER(&client->dev, info->gesture_wakelock,
+		"zinitix_gesture_wakelock");
+	if (!info->gesture_wakelock) {
+		dev_info(&client->dev, "%s: allocate gesture wakeup source err!\n", __func__);
+		ret = -ENOMEM;
+		goto err_register_gesture_wakelock;
+	}
+
 #ifdef SEC_FACTORY_TEST
 	init_completion(&info->builtin_cmcp_threshold_complete);
 	INIT_WORK(&info->cmcp_threshold_update,
@@ -6036,6 +6089,8 @@ static int bt541_ts_probe(struct i2c_client *client,
 
 	return ret;
 
+err_register_gesture_wakelock:
+	PM_WAKEUP_UNREGISTER(info->gesture_wakelock);
 err_ts_mmi_register:
 #ifdef SEC_FACTORY_TEST
 err_kthread_create_failed:

drivers/input/touchscreen/zinitix_ztw62x_mmi/zinitix_touch.h

@@ -122,6 +122,8 @@
 #define MAX_TRAW_DATA_SZ	\
 	(MAX_RAW_DATA_SZ + 4*MAX_SUPPORTED_FINGER_NUM + 2)
 
+extern volatile int tpd_halt;
+
 enum power_control {
 	POWER_OFF,
 	POWER_ON,
@@ -290,6 +292,12 @@ struct bt541_ts_info {
 	bool checkUMSmode;
 	bool irq_enabled;
 	bool gesture_enabled;
+	u16 gesture_command;
+#ifdef CONFIG_HAS_WAKELOCK
+	struct wake_lock gesture_wakelock;
+#else
+	struct wakeup_source *gesture_wakelock;
+#endif
 
 #if defined(CONFIG_INPUT_TOUCHSCREEN_MMI)
 	struct ts_mmi_class_methods *imports;

drivers/input/touchscreen/zinitix_ztw62x_mmi/zinitix_ts_mmi.c

@@ -21,6 +21,8 @@
 		return -ENODEV; \
 	}
 
+volatile int tpd_halt = 0;
+
 static int zinitix_ts_mmi_methods_get_vendor(struct device *dev, void *cdata)
 {
 	return scnprintf(TO_CHARP(cdata), TS_MMI_MAX_VENDOR_LEN, "%s", "zinitix");
@@ -219,11 +221,31 @@ static int zinitix_ts_mmi_methods_drv_irq(struct device *dev, int state)
 static int zinitix_ts_mmi_panel_state(struct device *dev,
     enum ts_mmi_pm_mode from, enum ts_mmi_pm_mode to)
 {
+	unsigned char gesture_type = 0;
 	struct bt541_ts_info *info = dev_get_drvdata(dev);
 	ASSERT_PTR(info);
 
 	switch (to) {
 	case TS_MMI_PM_GESTURE:
+		if (info->imports && info->imports->get_gesture_type) {
+			if (info->imports->get_gesture_type(dev, &gesture_type) < 0) {
+				dev_err(dev, "%s: get gesture type error.\n", __func__);
+				return -EINVAL;
+			}
+		}
+
+		info->gesture_command = 0;
+
+		if (gesture_type & TS_MMI_GESTURE_SINGLE) {
+		    info->gesture_command |= 0x0089;
+		    dev_info(dev, "Enable GESTURE_CLI_SINGLE command: 0x%04x", info->gesture_command);
+		}
+		if (gesture_type & TS_MMI_GESTURE_DOUBLE) {
+		    info->gesture_command |= 0x0091;
+		    dev_info(dev, "Enable GESTURE_CLI_DOUBLE command: 0x%04x", info->gesture_command);
+		}
+		dev_info(dev, "CLI GESTURE SWITCH command: 0x%04x", info->gesture_command);
+
 		if (zinitix_ts_mmi_gesture_suspend(dev) < 0) {
 			dev_err(dev, "%s: Gesture suspend error.\n", __func__);
 			return -EINVAL;
@@ -264,6 +286,7 @@ static int zinitix_ts_mmi_pre_suspend(struct device *dev)
 	dev_info(dev, "%s: Suspend start \n", __func__);
 
 	down(&info->work_lock);
+	tpd_halt = 1;
 	//stop ESD
 	#if ESD_TIMER_INTERVAL
 		flush_work(&info->tmr_work);
@@ -313,6 +336,7 @@ static int zinitix_ts_mmi_post_resume(struct device *dev)
 	#if ESD_TIMER_INTERVAL
 		esd_timer_start(CHECK_ESD_TIMER, info);
 	#endif
+	tpd_halt = 0;
 	info->work_state = NOTHING;
 	up(&info->work_lock);
 	dev_info(dev, "%s: Resume end\n", __func__);