From 55d43ce7cda30f0ab06c24c438350360576bef20 Mon Sep 17 00:00:00 2001
From: litong <litong20@lenovo.com>
Date: Sat, 9 May 2020 18:04:01 +0800
Subject: [PATCH] touchscreen_mmi: exports touch events handler

1. Exports touch events handler in order to obtain the touch events
reported by vendor.
2. Add debug options to control whether to print log.

Change-Id: I3bb89cfe5c7a5a55ca01b3a93488558db4358445
Reviewed-on: https://gerrit.mot.com/1550603
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Reviewed-by: Konstantin Makariev <kmakariev@motorola.com>
Tested-by: Jira Key
Reviewed-by: Jialei Hao <haojl2@motorola.com>
Submit-Approved: Jira Key
---
 .../touchscreen/touchscreen_mmi/Android.mk    |  4 +++
 .../input/touchscreen/touchscreen_mmi/Kbuild  |  3 +++
 .../touchscreen_mmi/touchscreen_mmi_gesture.c | 26 +++++++++++++++++++
 include/linux/touchscreen_mmi.h               | 14 ++++++++--
 4 files changed, 45 insertions(+), 2 deletions(-)

diff --git a/drivers/input/touchscreen/touchscreen_mmi/Android.mk b/drivers/input/touchscreen/touchscreen_mmi/Android.mk
index 1d2ea412c5c1..109b72934906 100644
--- a/drivers/input/touchscreen/touchscreen_mmi/Android.mk
+++ b/drivers/input/touchscreen/touchscreen_mmi/Android.mk
@@ -5,6 +5,10 @@ ifeq ($(DRM_DYNAMIC_REFRESH_RATE),true)
 	KERNEL_CFLAGS += CONFIG_DRM_DYNAMIC_REFRESH_RATE=y
 endif
 
+ifeq ($(TOUCHCLASS_MMI_DEBUG_INFO),true)
+	KERNEL_CFLAGS += CONFIG_TOUCHCLASS_MMI_DEBUG_INFO=y
+endif
+
 include $(CLEAR_VARS)
 LOCAL_MODULE := touchscreen_mmi.ko
 LOCAL_MODULE_TAGS := optional
diff --git a/drivers/input/touchscreen/touchscreen_mmi/Kbuild b/drivers/input/touchscreen/touchscreen_mmi/Kbuild
index 80516a615134..0b8d43326424 100644
--- a/drivers/input/touchscreen/touchscreen_mmi/Kbuild
+++ b/drivers/input/touchscreen/touchscreen_mmi/Kbuild
@@ -8,6 +8,9 @@ endif
 ifneq ($(filter m y, $(CONFIG_DRM_DYNAMIC_REFRESH_RATE)),)
 	EXTRA_CFLAGS += -DCONFIG_DRM_DYNAMIC_REFRESH_RATE
 endif
+ifneq ($(filter m y, $(CONFIG_TOUCHCLASS_MMI_DEBUG_INFO)),)
+	EXTRA_CFLAGS += -DCONFIG_TOUCHCLASS_MMI_DEBUG_INFO
+endif
 
 obj-m := touchscreen_mmi.o
 touchscreen_mmi-objs := touchscreen_mmi_class.o touchscreen_mmi_panel.o touchscreen_mmi_notif.o touchscreen_mmi_gesture.o
diff --git a/drivers/input/touchscreen/touchscreen_mmi/touchscreen_mmi_gesture.c b/drivers/input/touchscreen/touchscreen_mmi/touchscreen_mmi_gesture.c
index 9c474d3cbdc9..72f10dc9fdae 100644
--- a/drivers/input/touchscreen/touchscreen_mmi/touchscreen_mmi_gesture.c
+++ b/drivers/input/touchscreen/touchscreen_mmi/touchscreen_mmi_gesture.c
@@ -60,6 +60,30 @@ static int ts_mmi_gesture_handler(struct gesture_event_data *gev)
 	return 0;
 }
 
+static int ts_mmi_touch_event_handler(struct touch_event_data *tev)
+{
+	switch (tev->type) {
+	case TS_COORDINATE_ACTION_PRESS:
+#if defined(CONFIG_TOUCHCLASS_MMI_DEBUG_INFO)
+		pr_info("%s: [P]Finger %d: Down, x=%d, y=%d, major=%d, minor=%d",
+				__func__, tev->id, tev->x, tev->y, tev->major, tev->minor);
+#endif
+		break;
+
+	case TS_COORDINATE_ACTION_RELEASE:
+#if defined(CONFIG_TOUCHCLASS_MMI_DEBUG_INFO)
+		pr_info("%s: [R]Finger %d: UP", __func__, tev->id);
+#endif
+		break;
+
+	default:
+		pr_info("%s: unsupport type=%d\n", __func__, tev->type);
+
+	}
+
+	return 0;
+}
+
 bool ts_mmi_is_sensor_enable(void)
 {
 	struct ts_mmi_dev *touch_cdev;
@@ -156,6 +180,8 @@ int ts_mmi_gesture_init(struct ts_mmi_dev *touch_cdev)
 
 	/* export report gesture function to vendor */
 	touch_cdev->mdata->exports.report_gesture = ts_mmi_gesture_handler;
+	/* export report touch event function to vendor */
+	touch_cdev->mdata->exports.report_touch_event = ts_mmi_touch_event_handler;
 
 	return 0;
 
diff --git a/include/linux/touchscreen_mmi.h b/include/linux/touchscreen_mmi.h
index daa53d326d3c..aae64bd3e698 100644
--- a/include/linux/touchscreen_mmi.h
+++ b/include/linux/touchscreen_mmi.h
@@ -109,9 +109,18 @@ struct msm_drm_notifier *evdata = evd; \
 #define TS_MMI_MAX_PANEL_LEN		16
 #define TS_MMI_PILL_REGION_REQ_ARGS_NUM	3
 
+enum touch_event_mode {
+	TS_COORDINATE_ACTION_NONE = 0,
+	TS_COORDINATE_ACTION_PRESS,
+	TS_COORDINATE_ACTION_RELEASE,
+	TS_COORDINATE_ACTION_MOVE
+};
+
 struct touch_event_data {
-	int type;			/* TS_TOUCH, TS_RELEASE */
-	int x, y, w, p, m;	/* X, Y, area, pressure and major */
+	enum touch_event_mode type;		/* TS_TOUCH, TS_RELEASE */
+	int id;             			/* Finger id */
+	int x, y, w, p;        			/* X, Y, Area, Pressure */
+	int major, minor;   			/* Major, Minor */
 };
 
 struct gesture_event_data {
@@ -129,6 +138,7 @@ struct gesture_event_data {
 struct ts_mmi_class_methods {
 	int     (*report_gesture)(struct gesture_event_data *gev);
 	int     (*get_class_fname)(struct device *dev , const char **fname);
+	int     (*report_touch_event)(struct touch_event_data *tev);
 	struct kobject *kobj_notify;
 };