[hle/service] stub missing homebrew services, fix NPad/caps crashes (#4264)

Signed-off-by: lizzie <lizzie@eden-emu.dev>

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md)
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

this PR adds various missing services (acc:e, acc:e:u1)
to expand homebrew compatibility
notably this also fixes NPad related crashes due to nullref

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4264
Reviewed-by: Maufeat <sahyno1996@gmail.com>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>

3 files changed, 15 insertions, 6 deletions

diff --git a/src/hid_core/resources/abstracted_pad/abstract_battery_handler.cpp b/src/hid_core/resources/abstracted_pad/abstract_battery_handler.cpp
index a80f8271f9..e84f38f2e9 100644
--- a/src/hid_core/resources/abstracted_pad/abstract_battery_handler.cpp
+++ b/src/hid_core/resources/abstracted_pad/abstract_battery_handler.cpp
@@ -53,12 +53,11 @@ Result NpadAbstractBatteryHandler::DecrementRefCounter() {
 Result NpadAbstractBatteryHandler::UpdateBatteryState(u64 aruid) {
     const auto npad_index = NpadIdTypeToIndex(properties_handler->GetNpadId());
     AruidData* aruid_data = applet_resource_holder->applet_resource->GetAruidData(aruid);
-    if (aruid_data == nullptr) {
+    if (aruid_data == nullptr || aruid_data->shared_memory_format == nullptr) {
         return ResultSuccess;
     }
 
-    auto& npad_internal_state =
-        aruid_data->shared_memory_format->npad.npad_entry[npad_index].internal_state;
+    auto& npad_internal_state = aruid_data->shared_memory_format->npad.npad_entry[npad_index].internal_state;
     auto& system_properties = npad_internal_state.system_properties;
 
     system_properties.is_charging_joy_dual.Assign(dual_battery.is_charging);
diff --git a/src/hid_core/resources/npad/npad.cpp b/src/hid_core/resources/npad/npad.cpp
index a2fd23b534..e7a1ee2bf3 100644
--- a/src/hid_core/resources/npad/npad.cpp
+++ b/src/hid_core/resources/npad/npad.cpp
@@ -80,7 +80,11 @@ Result NPad::Activate(u64 aruid) {
     std::scoped_lock shared_lock{*applet_resource_holder.shared_mutex};
 
     auto* data = applet_resource_holder.applet_resource->GetAruidData(aruid);
-    const auto aruid_index = applet_resource_holder.applet_resource->GetIndexFromAruid(aruid);
+    auto aruid_index = applet_resource_holder.applet_resource->GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        LOG_ERROR(Service_HID, "Invalid aruid:{:016X}", aruid);
+        aruid_index = 0;
+    }
 
     if (data == nullptr || !data->flag.is_assigned) {
         return ResultSuccess;
@@ -1099,13 +1103,16 @@ Result NPad::RegisterAppletResourceUserId(u64 aruid) {
 
 void NPad::UnregisterAppletResourceUserId(u64 aruid) {
     // TODO: Remove this once abstract pad is emulated properly
-    const auto aruid_index = npad_resource.GetIndexFromAruid(aruid);
+    auto aruid_index = npad_resource.GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        LOG_ERROR(Service_HID, "Invalid aruid:{:016X}", aruid);
+        aruid_index = 0;
+    }
     for (auto& controller : controller_data[aruid_index]) {
         controller.is_active = false;
         controller.is_connected = false;
         controller.shared_memory = nullptr;
     }
-
     npad_resource.UnregisterAppletResourceUserId(aruid);
 }
 
diff --git a/src/hid_core/resources/npad/npad_resource.cpp b/src/hid_core/resources/npad/npad_resource.cpp
index 54f7acab12..a1b483d7b8 100644
--- a/src/hid_core/resources/npad/npad_resource.cpp
+++ b/src/hid_core/resources/npad/npad_resource.cpp
@@ -71,6 +71,9 @@ Result NPadResource::RegisterAppletResourceUserId(u64 aruid) {
 
 void NPadResource::UnregisterAppletResourceUserId(u64 aruid) {
     const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return;
+    }
 
     FreeAppletResourceId(aruid);
     if (aruid_index < AruidIndexMax) {