OvmfPkg/SioBusDxe/SioService.c: Add support for 4 COM ports

Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Dasharo · Feb 19, 2024 · a97af26 · a97af26
1 parent 9e8f8c8
commit a97af26
Showing 1 changed file with 28 additions and 0 deletions.
diff --git a/OvmfPkg/SioBusDxe/SioService.c b/OvmfPkg/SioBusDxe/SioService.c
@@ -39,6 +39,24 @@ SIO_RESOURCES_IO mCom2Resources = {
   { ACPI_END_TAG_DESCRIPTOR,                    0        }
 };
 
+//
+// COM 3 UART Controller
+//
+GLOBAL_REMOVE_IF_UNREFERENCED
+SIO_RESOURCES_IO mCom3Resources = {
+  { { ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR }, 0x3E8, 8 },
+  { ACPI_END_TAG_DESCRIPTOR,                    0        }
+};
+
+//
+// COM 4 UART Controller
+//
+GLOBAL_REMOVE_IF_UNREFERENCED
+SIO_RESOURCES_IO mCom4Resources = {
+  { { ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR }, 0x2E8, 8 },
+  { ACPI_END_TAG_DESCRIPTOR,                    0        }
+};
+
 //
 // PS/2 Keyboard Controller
 //
@@ -63,6 +81,16 @@ SIO_DEVICE_INFO mDevicesInfo[] = {
     1,
     { (ACPI_SMALL_RESOURCE_HEADER *) &mCom2Resources }
   },  // COM 2 UART Controller
+  {
+    EISA_PNP_ID (0x501),
+    0,
+    { (ACPI_SMALL_RESOURCE_HEADER *) &mCom3Resources }
+  },  // COM 3 UART Controller
+  {
+    EISA_PNP_ID (0x501),
+    1,
+    { (ACPI_SMALL_RESOURCE_HEADER *) &mCom4Resources }
+  },  // COM 4 UART Controller
   {
     EISA_PNP_ID(0x303),
     0,