From 0ffea87896696f4ced9ad7e1012fe8d5ec8712bd Mon Sep 17 00:00:00 2001
From: Arian <arian.kulmer@web.de>
Date: Sat, 1 Jun 2024 16:35:12 +0200
Subject: [PATCH] sm8450-common: udfps: Kill fod_status

Change-Id: I02cee1b4cb5207fed2da31302d9ecbb6b720b1d8
---
 udfps/UdfpsHandler.cpp | 51 +++---------------------------------------
 1 file changed, 3 insertions(+), 48 deletions(-)

diff --git a/udfps/UdfpsHandler.cpp b/udfps/UdfpsHandler.cpp
index 16e5d9c..0a6b850 100644
--- a/udfps/UdfpsHandler.cpp
+++ b/udfps/UdfpsHandler.cpp
@@ -33,10 +33,6 @@
 #define PARAM_FOD_PRESSED 1
 #define PARAM_FOD_RELEASED 0
 
-#define FOD_STATUS_OFF 0
-#define FOD_STATUS_ON 1
-#define FOD_STATUS_OFF_UNTIL_SUSPEND 3
-
 #define TOUCH_DEV_PATH "/dev/xiaomi-touch"
 #define TOUCH_MAGIC 'T'
 #define TOUCH_IOC_SET_CUR_VALUE _IO(TOUCH_MAGIC, SET_CUR_VALUE)
@@ -203,60 +199,26 @@ class XiaomiSm8450UdfpsHander : public UdfpsHandler {
         lastPressX = x;
         lastPressY = y;
 
-        /*
-         * On fpc_fod devices, the waiting for finger message is not reliably sent...
-         * The finger down message is only reliably sent when the screen is turned off, so enable
-         * fod_status better late than never.
-         */
-        if (isFpcFod) {
-            setFodStatus(FOD_STATUS_ON);
-        }
-
-        // Ensure touchscreen is aware of the press state, ideally this is not needed
+        // Notify touchscreen about press status
         setFingerDown(true);
     }
 
     void onFingerUp() {
         LOG(DEBUG) << __func__;
-        // Ensure touchscreen is aware of the press state, ideally this is not needed
+        // Notify touchscreen about press status
         setFingerDown(false);
     }
 
     void onAcquired(int32_t result, int32_t vendorCode) {
         LOG(DEBUG) << __func__ << " result: " << result << " vendorCode: " << vendorCode;
         if (result == FINGERPRINT_ACQUIRED_GOOD) {
-            // Request to disable HBM already, even if the finger is still pressed
-            disp_local_hbm_req req;
-            req.base.flag = 0;
-            req.base.disp_id = MI_DISP_PRIMARY;
-            req.local_hbm_value = LHBM_TARGET_BRIGHTNESS_OFF_FINGER_UP;
-            ioctl(disp_fd_.get(), MI_DISP_IOCTL_SET_LOCAL_HBM, &req);
-
-            if (!enrolling) {
-                setFodStatus(FOD_STATUS_OFF_UNTIL_SUSPEND);
-            }
-        }
-
-        /* vendorCode for goodix_fod devices:
-         * 21: waiting for finger
-         * 22: finger down
-         * 23: finger up
-         * On fpc_fod devices, the waiting for finger message is not reliably sent...
-         * The finger down message is only reliably sent when the screen is turned off, so enable
-         * fod_status better late than never.
-         */
-        if (!isFpcFod && vendorCode == 21) {
-            setFodStatus(FOD_STATUS_ON);
-        } else if (isFpcFod && vendorCode == 22) {
-            setFodStatus(FOD_STATUS_ON);
+            setFingerDown(false);
         }
     }
 
     void cancel() {
         LOG(DEBUG) << __func__;
         enrolling = false;
-
-        setFodStatus(FOD_STATUS_OFF_UNTIL_SUSPEND);
     }
 
     void preEnroll() {
@@ -272,8 +234,6 @@ class XiaomiSm8450UdfpsHander : public UdfpsHandler {
     void postEnroll() {
         LOG(DEBUG) << __func__;
         enrolling = false;
-
-        setFodStatus(FOD_STATUS_OFF_UNTIL_SUSPEND);
     }
 
   private:
@@ -284,11 +244,6 @@ class XiaomiSm8450UdfpsHander : public UdfpsHandler {
     bool enrolling = false;
     uint32_t lastPressX, lastPressY;
 
-    void setFodStatus(int value) {
-        int buf[MAX_BUF_SIZE] = {MI_DISP_PRIMARY, Touch_Fod_Enable, value};
-        ioctl(touch_fd_.get(), TOUCH_IOC_SET_CUR_VALUE, &buf);
-    }
-
     void setFingerDown(bool pressed) {
         int buf[MAX_BUF_SIZE] = {MI_DISP_PRIMARY, THP_FOD_DOWNUP_CTL, pressed ? 1 : 0};
         ioctl(touch_fd_.get(), TOUCH_IOC_SET_CUR_VALUE, &buf);