From 067630aef3880cded94804d527ffcfec47169e25 Mon Sep 17 00:00:00 2001
From: "John \"Nielk1\" Klein" <John "Nielk1" Klein@localhost>
Date: Wed, 11 Nov 2020 03:47:08 -0600
Subject: [PATCH] Fix hidapi for unhandled DS4 headset microphone data
 corrupting controller state

---
 src/joystick/hidapi/SDL_hidapi_ps4.c | 26 ++++++++++++++++++++++----
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/joystick/hidapi/SDL_hidapi_ps4.c b/src/joystick/hidapi/SDL_hidapi_ps4.c
index 173e1ed12..ebf3a6490 100644
--- a/src/joystick/hidapi/SDL_hidapi_ps4.c
+++ b/src/joystick/hidapi/SDL_hidapi_ps4.c
@@ -41,7 +41,15 @@ typedef enum
 {
     k_EPS4ReportIdUsbState = 1,
     k_EPS4ReportIdUsbEffects = 5,
-    k_EPS4ReportIdBluetoothState = 17,
+    k_EPS4ReportIdBluetoothState1 = 17,
+    k_EPS4ReportIdBluetoothState2 = 18,
+    k_EPS4ReportIdBluetoothState3 = 19,
+    k_EPS4ReportIdBluetoothState4 = 20,
+    k_EPS4ReportIdBluetoothState5 = 21,
+    k_EPS4ReportIdBluetoothState6 = 22,
+    k_EPS4ReportIdBluetoothState7 = 23,
+    k_EPS4ReportIdBluetoothState8 = 24,
+    k_EPS4ReportIdBluetoothState9 = 25,
     k_EPS4ReportIdBluetoothEffects = 17,
     k_EPS4ReportIdDisconnectMessage = 226,
 } EPS4ReportId;
@@ -524,9 +532,19 @@ HIDAPI_DriverPS4_UpdateDevice(SDL_HIDAPI_Device *device)
         case k_EPS4ReportIdUsbState:
             HIDAPI_DriverPS4_HandleStatePacket(joystick, device->dev, ctx, (PS4StatePacket_t *)&data[1]);
             break;
-        case k_EPS4ReportIdBluetoothState:
-            /* Bluetooth state packets have two additional bytes at the beginning */
-            HIDAPI_DriverPS4_HandleStatePacket(joystick, device->dev, ctx, (PS4StatePacket_t *)&data[3]);
+        case k_EPS4ReportIdBluetoothState1:
+        case k_EPS4ReportIdBluetoothState2:
+        case k_EPS4ReportIdBluetoothState3:
+        case k_EPS4ReportIdBluetoothState4:
+        case k_EPS4ReportIdBluetoothState5:
+        case k_EPS4ReportIdBluetoothState6:
+        case k_EPS4ReportIdBluetoothState7:
+        case k_EPS4ReportIdBluetoothState8:
+        case k_EPS4ReportIdBluetoothState9:
+            /* Bluetooth state packets have two additional bytes at the beginning, the first notes if HID is present */
+            if (data[1] & 0x80) {
+                HIDAPI_DriverPS4_HandleStatePacket(joystick, device->dev, ctx, (PS4StatePacket_t*)&data[3]);
+            }
             break;
         default:
 #ifdef DEBUG_JOYSTICK