MdePkg/IndustryStandard/Pci23: add vendor-specific capability header

Revision 2.2 of the PCI Spec defines Capability IDs 0 through 6,
inclusive, in Appendix H. It reserves IDs 7 through 255.

Revision 2.3 of the PCI Spec adds Capability IDs 7 through 0xC, inclusive,
in Appendix H. Capability ID 9 stands for "Vendor Specific".

Add the EFI_PCI_CAPABILITY_ID_VENDOR macro and the
EFI_PCI_CAPABILITY_VENDOR_HDR structure type to MdePkg/IndustryStandard,
in order to describe this capability header.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/MdePkg/Include/IndustryStandard/Pci23.h b/MdePkg/Include/IndustryStandard/Pci23.h
index 4673544..87bd163 100644
--- a/MdePkg/Include/IndustryStandard/Pci23.h
+++ b/MdePkg/Include/IndustryStandard/Pci23.h
@@ -92,6 +92,7 @@
 /// PCI Capability List IDs and records.

 ///

 #define EFI_PCI_CAPABILITY_ID_PCIX    0x07

+#define EFI_PCI_CAPABILITY_ID_VENDOR  0x09

 

 #pragma pack(1)

 ///

@@ -116,6 +117,15 @@ typedef struct {
   UINT32                  SplitTransCtrlRegDn;

 } EFI_PCI_CAPABILITY_PCIX_BRDG;

 

+///

+/// Vendor Specific Capability Header

+/// Table H-1: Capability IDs, PCI Local Bus Specification, 2.3

+///

+typedef struct {

+  EFI_PCI_CAPABILITY_HDR  Hdr;

+  UINT8                   Length;

+} EFI_PCI_CAPABILITY_VENDOR_HDR;

+

 #pragma pack()

 

 #define PCI_CODE_TYPE_EFI_IMAGE       0x03