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/MdePkg/Include/IndustryStandard/SmBus.h | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/MdePkg/Include/IndustryStandard/SmBus.h')
| -rw-r--r-- | roms/edk2/MdePkg/Include/IndustryStandard/SmBus.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Include/IndustryStandard/SmBus.h b/roms/edk2/MdePkg/Include/IndustryStandard/SmBus.h new file mode 100644 index 000000000..024a7ba67 --- /dev/null +++ b/roms/edk2/MdePkg/Include/IndustryStandard/SmBus.h @@ -0,0 +1,75 @@ +/** @file
+ This file declares the SMBus definitions defined in SmBus Specification V2.0
+ and defined in PI1.0 specification volume 5.
+
+ Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _SMBUS_H_
+#define _SMBUS_H_
+
+
+///
+/// UDID of SMBUS device.
+///
+typedef struct {
+ UINT32 VendorSpecificId;
+ UINT16 SubsystemDeviceId;
+ UINT16 SubsystemVendorId;
+ UINT16 Interface;
+ UINT16 DeviceId;
+ UINT16 VendorId;
+ UINT8 VendorRevision;
+ UINT8 DeviceCapabilities;
+} EFI_SMBUS_UDID;
+
+///
+/// Smbus Device Address
+///
+typedef struct {
+ ///
+ /// The SMBUS hardware address to which the SMBUS device is preassigned or allocated.
+ ///
+ UINTN SmbusDeviceAddress : 7;
+} EFI_SMBUS_DEVICE_ADDRESS;
+
+typedef struct {
+ ///
+ /// The SMBUS hardware address to which the SMBUS device is preassigned or
+ /// allocated. Type EFI_SMBUS_DEVICE_ADDRESS is defined in EFI_PEI_SMBUS2_PPI.Execute().
+ ///
+ EFI_SMBUS_DEVICE_ADDRESS SmbusDeviceAddress;
+ ///
+ /// The SMBUS Unique Device Identifier (UDID) as defined in EFI_SMBUS_UDID.
+ /// Type EFI_SMBUS_UDID is defined in EFI_PEI_SMBUS2_PPI.ArpDevice().
+ ///
+ EFI_SMBUS_UDID SmbusDeviceUdid;
+} EFI_SMBUS_DEVICE_MAP;
+
+///
+/// Smbus Operations
+///
+typedef enum _EFI_SMBUS_OPERATION {
+ EfiSmbusQuickRead,
+ EfiSmbusQuickWrite,
+ EfiSmbusReceiveByte,
+ EfiSmbusSendByte,
+ EfiSmbusReadByte,
+ EfiSmbusWriteByte,
+ EfiSmbusReadWord,
+ EfiSmbusWriteWord,
+ EfiSmbusReadBlock,
+ EfiSmbusWriteBlock,
+ EfiSmbusProcessCall,
+ EfiSmbusBWBRProcessCall
+} EFI_SMBUS_OPERATION;
+
+///
+/// EFI_SMBUS_DEVICE_COMMAND
+///
+typedef UINTN EFI_SMBUS_DEVICE_COMMAND;
+
+#endif
+
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