diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/OvmfPkg/Include/Library/PciCapPciIoLib.h | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/OvmfPkg/Include/Library/PciCapPciIoLib.h')
| -rw-r--r-- | roms/edk2/OvmfPkg/Include/Library/PciCapPciIoLib.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/roms/edk2/OvmfPkg/Include/Library/PciCapPciIoLib.h b/roms/edk2/OvmfPkg/Include/Library/PciCapPciIoLib.h new file mode 100644 index 000000000..9524ff3e9 --- /dev/null +++ b/roms/edk2/OvmfPkg/Include/Library/PciCapPciIoLib.h @@ -0,0 +1,52 @@ +/** @file
+ Library class layered on top of PciCapLib that allows clients to plug an
+ EFI_PCI_IO_PROTOCOL backend into PciCapLib, for config space access.
+
+ Copyright (C) 2018, Red Hat, Inc.
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef __PCI_CAP_PCI_IO_LIB_H__
+#define __PCI_CAP_PCI_IO_LIB_H__
+
+#include <Protocol/PciIo.h>
+
+#include <Library/PciCapLib.h>
+
+
+/**
+ Create a PCI_CAP_DEV object from an EFI_PCI_IO_PROTOCOL instance. The config
+ space accessors are based upon EFI_PCI_IO_PROTOCOL.Pci.Read() and
+ EFI_PCI_IO_PROTOCOL.Pci.Write().
+
+ @param[in] PciIo EFI_PCI_IO_PROTOCOL representation of the PCI device.
+
+ @param[out] PciDevice The PCI_CAP_DEV object constructed as described above.
+ PciDevice can be passed to the PciCapLib APIs.
+
+ @retval EFI_SUCCESS PciDevice has been constructed and output.
+
+ @retval EFI_OUT_OF_RESOURCES Memory allocation failed.
+**/
+EFI_STATUS
+EFIAPI
+PciCapPciIoDeviceInit (
+ IN EFI_PCI_IO_PROTOCOL *PciIo,
+ OUT PCI_CAP_DEV **PciDevice
+ );
+
+
+/**
+ Free the resources used by PciDevice.
+
+ @param[in] PciDevice The PCI_CAP_DEV object to free, originally produced by
+ PciCapPciIoDeviceInit().
+**/
+VOID
+EFIAPI
+PciCapPciIoDeviceUninit (
+ IN PCI_CAP_DEV *PciDevice
+ );
+
+#endif // __PCI_CAP_PCI_IO_LIB_H__
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