Add new pre-built EC SSDTs

Universal/ec-fix.md

@@ -3,13 +3,24 @@
 
 What we'll be doing is creating a fake Embedded Controller (EC) to satisfy macOS Catalina's EC addiction, and disabling the EC on desktops to prevent panics and crashes.
 
-You'll want to begin by grabbing either one of these uncompiled SSDT files:
+For desktops, you'll want to begin by grabbing either one of these uncompiled SSDT files:
 
 * [SSDT-EC-USBX](https://github.com/acidanthera/OpenCorePkg/blob/master/Docs/AcpiSamples/SSDT-EC-USBX.dsl)
   * For Skylake and newer and all AMD systems
 * [SSDT-EC](https://github.com/acidanthera/OpenCorePkg/blob/master/Docs/AcpiSamples/SSDT-EC.dsl)
   * For Broadwell and older
 
+For laptops, you'll can actually use the pre-builts:
+
+* [SSDT-EC-USBX-LAPTOP.aml](https://github.com/dortania/Getting-Started-With-ACPI/blob/master/extra-files/SSDT-EC-USBX-LAPTOP.aml)
+  * For Skylake and newer
+* [SSDT-EC-LAPTOP.aml](https://github.com/dortania/Getting-Started-With-ACPI/blob/master/extra-files/SSDT-EC-LAPTOP.aml)
+  * For Broadwell and older
+
+With laptops it's a simple as that, all this does is check for an existing `EC__` and if one doesn't appear then create a fake EC to make macOS happy.
+
+Desktops however will need to follow below on creating a proper SSDT.
+
 ### Fixing the Path
 
 For Intel systems, the path is *likely* correct, though it's worth double checking. You will want to find your current EC by opening your decompiled DSDT and searching for `PNP0C09`. You should get a result similar to this:

extra-files/SSDT-EC-LAPTOP.dsl

@@ -0,0 +1,36 @@
+/* Purpose of this SSDT is to:
+ * 
+ *   - Find references of devices named EC__
+ *   - If none are found, only then create a new EC
+ * 
+ * Reason for this is to avoid having multiple EC__ in devices
+ * like Lenovo who already use the name EC__
+ */
+DefinitionBlock ("", "SSDT", 2, "DRTNIA", "SsdtEC", 0x00001000)
+{
+    External (_SB_.PCI0.LPC_.EC__, DeviceObj)
+    External (_SB_.PCI0.LPCB.EC__, DeviceObj)
+
+    If ((!CondRefOf (\_SB.PCI0.LPCB.EC) && !CondRefOf (\_SB.PCI0.LPC.EC)))
+    {
+        Scope (\_SB)
+        {
+            Device (EC)
+            {
+                Name (_HID, "ACID0001")  // _HID: Hardware ID
+                Method (_STA, 0, NotSerialized)  // _STA: Status
+                {
+                    If (_OSI ("Darwin"))
+                    {
+                        Return (0x0F)
+                    }
+                    Else
+                    {
+                        Return (Zero)
+                    }
+                }
+            }
+        }
+    }
+}
+

extra-files/SSDT-EC-USBX-LAPTOP.dsl

@@ -0,0 +1,62 @@
+/* Purpose of this SSDT is to:
+ * 
+ *   - Find references of devices named EC__
+ *   - If none are found, only then create a new EC
+ * 
+ * Reason for this is to avoid having multiple EC__ in devices
+ * like Lenovo who already use the name EC__
+ */
+DefinitionBlock ("", "SSDT", 2, "DRTNIA", "SsdtEC", 0x00001000)
+{
+    External (_SB_.PCI0.LPC_.EC__, DeviceObj)
+    External (_SB_.PCI0.LPCB.EC__, DeviceObj)
+
+    If ((!CondRefOf (\_SB.PCI0.LPCB.EC) && !CondRefOf (\_SB.PCI0.LPC.EC)))
+    {
+        Scope (\_SB)
+        {
+            Device (EC)
+            {
+                Name (_HID, "ACID0001")  // _HID: Hardware ID
+                Method (_STA, 0, NotSerialized)  // _STA: Status
+                {
+                    If (_OSI ("Darwin"))
+                    {
+                        Return (0x0F)
+                    }
+                    Else
+                    {
+                        Return (Zero)
+                    }
+                }
+            }
+        }
+    }
+
+    Device (USBX)
+    {
+        Name (_ADR, Zero)  // _ADR: Address
+        Method (_DSM, 4, NotSerialized)  // _DSM: Device-Specific Method
+        {
+            If ((Arg2 == Zero))
+            {
+                Return (Buffer (One)
+                {
+                     0x03                                             // .
+                })
+            }
+
+            Return (Package (0x08)
+            {
+                "kUSBSleepPowerSupply", 
+                0x13EC, 
+                "kUSBSleepPortCurrentLimit", 
+                0x0834, 
+                "kUSBWakePowerSupply", 
+                0x13EC, 
+                "kUSBWakePortCurrentLimit", 
+                0x0834
+            })
+        }
+    }
+}