QemuVideo: prepare to support more hardware

[mirror_edk2.git] / OvmfPkg / QemuVideoDxe / Driver.c

diff --git a/OvmfPkg/QemuVideoDxe/Driver.c b/OvmfPkg/QemuVideoDxe/Driver.c
index cb3e34970dc0e1efe7f9d449230d150a1758ed8e..51929803b582e007727729497b57870c716c4e59 100644 (file)
--- a/OvmfPkg/QemuVideoDxe/Driver.c
+++ b/OvmfPkg/QemuVideoDxe/Driver.c
@@ -25,6 +25,45 @@ EFI_DRIVER_BINDING_PROTOCOL gQemuVideoDriverBinding = {
   NULL\r
 };\r
 \r
+QEMU_VIDEO_CARD gQemuVideoCardList[] = {\r
+    {\r
+        CIRRUS_LOGIC_VENDOR_ID,\r
+        CIRRUS_LOGIC_5430_DEVICE_ID,\r
+        QEMU_VIDEO_CIRRUS_5430,\r
+        L"Cirrus 5430"\r
+    },{\r
+        CIRRUS_LOGIC_VENDOR_ID,\r
+        CIRRUS_LOGIC_5430_ALTERNATE_DEVICE_ID,\r
+        QEMU_VIDEO_CIRRUS_5430,\r
+        L"Cirrus 5430"\r
+    },{\r
+        CIRRUS_LOGIC_VENDOR_ID,\r
+        CIRRUS_LOGIC_5446_DEVICE_ID,\r
+        QEMU_VIDEO_CIRRUS_5446,\r
+        L"Cirrus 5446"\r
+    },{\r
+        0 /* end of list */\r
+    }\r
+};\r
+\r
+static QEMU_VIDEO_CARD*\r
+QemuVideoDetect(\r
+  IN UINT16 VendorId,\r
+  IN UINT16 DeviceId\r
+  )\r
+{\r
+  UINTN Index = 0;\r
+\r
+  while (gQemuVideoCardList[Index].VendorId != 0) {\r
+    if (gQemuVideoCardList[Index].VendorId == VendorId &&\r
+        gQemuVideoCardList[Index].DeviceId == DeviceId) {\r
+      return gQemuVideoCardList + Index;\r
+    }\r
+    Index++;\r
+  }\r
+  return NULL;\r
+}\r
+\r
 /**\r
   Check if this device is supported.\r
 \r
@@ -48,6 +87,7 @@ QemuVideoControllerDriverSupported (
   EFI_PCI_IO_PROTOCOL *PciIo;\r
   PCI_TYPE00          Pci;\r
   EFI_DEV_PATH        *Node;\r
+  QEMU_VIDEO_CARD     *Card;\r
 \r
   //\r
   // Open the PCI I/O Protocol\r
@@ -87,35 +127,29 @@ QemuVideoControllerDriverSupported (
   //\r
   // See if this is a Cirrus Logic PCI controller\r
   //\r
-  if (Pci.Hdr.VendorId == CIRRUS_LOGIC_VENDOR_ID) {\r
+  Card = QemuVideoDetect(Pci.Hdr.VendorId, Pci.Hdr.DeviceId);\r
+  if (Card != NULL) {\r
+    DEBUG ((EFI_D_INFO, "QemuVideo: %s detected\n", Card->Name));\r
+    Status = EFI_SUCCESS;\r
     //\r
-    // See if this is a 5430 or a 5446 PCI controller\r
+    // If this is an Intel 945 graphics controller,\r
+    // go further check RemainingDevicePath validation\r
     //\r
-    if (Pci.Hdr.DeviceId == CIRRUS_LOGIC_5430_DEVICE_ID || \r
-        Pci.Hdr.DeviceId == CIRRUS_LOGIC_5430_ALTERNATE_DEVICE_ID ||\r
-        Pci.Hdr.DeviceId == CIRRUS_LOGIC_5446_DEVICE_ID) {\r
-        \r
-      Status = EFI_SUCCESS;\r
+    if (RemainingDevicePath != NULL) {\r
+      Node = (EFI_DEV_PATH *) RemainingDevicePath;\r
       //\r
-      // If this is an Intel 945 graphics controller,\r
-      // go further check RemainingDevicePath validation\r
+      // Check if RemainingDevicePath is the End of Device Path Node, \r
+      // if yes, return EFI_SUCCESS\r
       //\r
-      if (RemainingDevicePath != NULL) {\r
-        Node = (EFI_DEV_PATH *) RemainingDevicePath;\r
+      if (!IsDevicePathEnd (Node)) {\r
         //\r
-        // Check if RemainingDevicePath is the End of Device Path Node, \r
-        // if yes, return EFI_SUCCESS\r
+        // If RemainingDevicePath isn't the End of Device Path Node,\r
+        // check its validation\r
         //\r
-        if (!IsDevicePathEnd (Node)) {\r
-          //\r
-          // If RemainingDevicePath isn't the End of Device Path Node,\r
-          // check its validation\r
-          //\r
-          if (Node->DevPath.Type != ACPI_DEVICE_PATH ||\r
-              Node->DevPath.SubType != ACPI_ADR_DP ||\r
-              DevicePathNodeLength(&Node->DevPath) != sizeof(ACPI_ADR_DEVICE_PATH)) {\r
-            Status = EFI_UNSUPPORTED;\r
-          }\r
+        if (Node->DevPath.Type != ACPI_DEVICE_PATH ||\r
+            Node->DevPath.SubType != ACPI_ADR_DP ||\r
+            DevicePathNodeLength(&Node->DevPath) != sizeof(ACPI_ADR_DEVICE_PATH)) {\r
+          Status = EFI_UNSUPPORTED;\r
         }\r
       }\r
     }\r
@@ -161,7 +195,9 @@ QemuVideoControllerDriverStart (
   BOOLEAN                         PciAttributesSaved;\r
   EFI_DEVICE_PATH_PROTOCOL        *ParentDevicePath;\r
   ACPI_ADR_DEVICE_PATH            AcpiDeviceNode;\r
-\r
+  PCI_TYPE00                      Pci;\r
+  QEMU_VIDEO_CARD                 *Card;\r
+  \r
   PciAttributesSaved = FALSE;\r
   //\r
   // Allocate Private context data for GOP inteface.\r
@@ -193,6 +229,27 @@ QemuVideoControllerDriverStart (
     goto Error;\r
   }\r
 \r
+  //\r
+  // Read the PCI Configuration Header from the PCI Device\r
+  //\r
+  Status = Private->PciIo->Pci.Read (\r
+                        Private->PciIo,\r
+                        EfiPciIoWidthUint32,\r
+                        0,\r
+                        sizeof (Pci) / sizeof (UINT32),\r
+                        &Pci\r
+                        );\r
+  if (EFI_ERROR (Status)) {\r
+    goto Error;\r
+  }\r
+\r
+  Card = QemuVideoDetect(Pci.Hdr.VendorId, Pci.Hdr.DeviceId);\r
+  if (Card == NULL) {\r
+    Status = EFI_DEVICE_ERROR;\r
+    goto Error;\r
+  }\r
+  Private->Variant = Card->Variant;\r
+\r
   //\r
   // Save original PCI attributes\r
   //\r
@@ -274,7 +331,16 @@ QemuVideoControllerDriverStart (
   //\r
   // Construct video mode buffer\r
   //\r
-  Status = QemuVideoVideoModeSetup (Private);\r
+  switch (Private->Variant) {\r
+  case QEMU_VIDEO_CIRRUS_5430:\r
+  case QEMU_VIDEO_CIRRUS_5446:\r
+    Status = QemuVideoCirrusModeSetup (Private);\r
+    break;\r
+  default:\r
+    ASSERT (FALSE);\r
+    Status = EFI_DEVICE_ERROR;\r
+    break;\r
+  }\r
   if (EFI_ERROR (Status)) {\r
     goto Error;\r
   }\r
@@ -640,27 +706,13 @@ DrawLogo (
 \r
 **/\r
 VOID\r
-InitializeGraphicsMode (\r
+InitializeCirrusGraphicsMode (\r
   QEMU_VIDEO_PRIVATE_DATA  *Private,\r
-  QEMU_VIDEO_VIDEO_MODES   *ModeData\r
+  QEMU_VIDEO_CIRRUS_MODES  *ModeData\r
   )\r
 {\r
   UINT8 Byte;\r
   UINTN Index;\r
-  UINT16 DeviceId;\r
-  EFI_STATUS Status;\r
-\r
-  Status = Private->PciIo->Pci.Read (\r
-             Private->PciIo,\r
-             EfiPciIoWidthUint16,\r
-             PCI_DEVICE_ID_OFFSET,\r
-             1,\r
-             &DeviceId\r
-             );\r
-  //\r
-  // Read the PCI Configuration Header from the PCI Device\r
-  //\r
-  ASSERT_EFI_ERROR (Status);\r
 \r
   outw (Private, SEQ_ADDRESS_REGISTER, 0x1206);\r
   outw (Private, SEQ_ADDRESS_REGISTER, 0x0012);\r
@@ -669,7 +721,7 @@ InitializeGraphicsMode (
     outw (Private, SEQ_ADDRESS_REGISTER, ModeData->SeqSettings[Index]);\r
   }\r
 \r
-  if (DeviceId != CIRRUS_LOGIC_5446_DEVICE_ID) {\r
+  if (Private->Variant == QEMU_VIDEO_CIRRUS_5430) {\r
     outb (Private, SEQ_ADDRESS_REGISTER, 0x0f);\r
     Byte = (UINT8) ((inb (Private, SEQ_DATA_REGISTER) & 0xc7) ^ 0x30);\r
     outb (Private, SEQ_DATA_REGISTER, Byte);\r