Revert "sm6250-common: power: Add support for DT2W feature"

This reverts commit a587e4ebb8e87c3eb5e41e9eafcca0511d4b76b6.

power/Android.bp

@@ -22,9 +22,6 @@ cc_binary {
         "Power.cpp",
         "service.cpp",
     ],
-    header_libs: [
-        "generated_kernel_headers",
-    ],
     shared_libs: [
         "liblog",
         "libhidlbase",

power/Power.cpp

@@ -16,14 +16,8 @@
 
 #define LOG_TAG "android.hardware.power@1.3-service.xiaomi_sm6250"
 
-#include <linux/input.h>
-
 #include "Power.h"
 
-constexpr static char const* inputDevicesDirectory = "/dev/input/";
-constexpr static int wakeupModeOn = 5;
-constexpr static int wakeupModeOff = 4;
-
 namespace android {
 namespace hardware {
 namespace power {
@@ -39,66 +33,7 @@ Return<void> Power::powerHint(PowerHint_1_0, int32_t) {
     return Void();
 }
 
-bool isSupportedInputName(char* name) {
+Return<void> Power::setFeature(Feature, bool) {
-    return false;
-}
-
-int openInputFd() {
-    DIR *dir = opendir(inputDevicesDirectory);
-    if (dir == NULL) {
-        return -1;
-    }
-
-    struct dirent *ent;
-    int fd;
-    int rc;
-
-    while ((ent = readdir(dir)) != NULL) {
-        if (ent->d_type != DT_CHR)
-            continue;
-
-        char absolute_path[PATH_MAX] = {0};
-        char name[80] = {0};
-
-        strcpy(absolute_path, inputDevicesDirectory);
-        strcat(absolute_path, ent->d_name);
-
-        fd = open(absolute_path, O_RDWR);
-        if (fd < 0)
-            continue;
-
-        rc = ioctl(fd, EVIOCGNAME(sizeof(name) - 1), &name);
-        if (rc > 0 && isSupportedInputName(name))
-            break;
-
-        close(fd);
-        fd = -1;
-    }
-
-    closedir(dir);
-
-    return fd;
-}
-
-Return<void> Power::setFeature(Feature feature, bool activate) {
-    switch (feature) {
-        case Feature::POWER_FEATURE_DOUBLE_TAP_TO_WAKE: {
-            int fd = openInputFd();
-            if (fd < 0) {
-                ALOGW("No touchscreen input devices that support DT2W were found");
-                return Void();
-            }
-
-            struct input_event ev;
-            ev.type = EV_SYN;
-            ev.code = SYN_CONFIG;
-            ev.value = activate ? wakeupModeOn : wakeupModeOff;
-            write(fd, &ev, sizeof(ev));
-            close(fd);
-            } break;
-        default:
-            break;
-    }
     return Void();
 }
 

power/android.hardware.power@1.3-service.xiaomi_sm6250.rc

@@ -1,4 +1,4 @@
 service vendor.power-hal-1-0 /vendor/bin/hw/android.hardware.power@1.3-service.xiaomi_sm6250
     class hal
     user system
-    group system input
+    group system

sepolicy/vendor/hal_power_default.te

@@ -1,3 +0,0 @@
-# Allow hal_power_default to write to dt2w nodes
-allow hal_power_default input_device:dir r_dir_perms;
-allow hal_power_default input_device:chr_file rw_file_perms;