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authorandrewfish <andrewfish@6f19259b-4bc3-4df7-8a09-765794883524>2010-01-28 21:32:01 +0000
committerandrewfish <andrewfish@6f19259b-4bc3-4df7-8a09-765794883524>2010-01-28 21:32:01 +0000
commita3f98646f68239bf9c577b24689bc69cbcde1b47 (patch)
tree5aadfc72e0170e433b621de4da245a906c8c13f6 /Omap35xxPkg/TPS65950Dxe
parent759f21f1d17ce52a05eea31e9ddd1efb4ec68bbb (diff)
downloadedk2-platforms-a3f98646f68239bf9c577b24689bc69cbcde1b47.tar.xz
Moving OMAP 3530 code out of BeagleBoard package into its own package
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9854 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'Omap35xxPkg/TPS65950Dxe')
-rw-r--r--Omap35xxPkg/TPS65950Dxe/TPS65950.c116
-rw-r--r--Omap35xxPkg/TPS65950Dxe/TPS65950.inf48
2 files changed, 164 insertions, 0 deletions
diff --git a/Omap35xxPkg/TPS65950Dxe/TPS65950.c b/Omap35xxPkg/TPS65950Dxe/TPS65950.c
new file mode 100644
index 0000000000..f47f795a1d
--- /dev/null
+++ b/Omap35xxPkg/TPS65950Dxe/TPS65950.c
@@ -0,0 +1,116 @@
+/** @file
+
+ Copyright (c) 2008-2009, Apple Inc. All rights reserved.
+
+ All rights reserved. This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Uefi.h>
+
+#include <TPS65950.h>
+
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+
+#include <Protocol/EmbeddedExternalDevice.h>
+#include <Protocol/SmbusHc.h>
+
+EFI_SMBUS_HC_PROTOCOL *Smbus;
+
+EFI_STATUS
+Read (
+ IN EMBEDDED_EXTERNAL_DEVICE *This,
+ IN UINTN Register,
+ IN UINTN Length,
+ OUT VOID *Buffer
+ )
+{
+ EFI_STATUS Status;
+ EFI_SMBUS_DEVICE_ADDRESS SlaveAddress;
+ UINT8 DeviceRegister;
+ UINTN DeviceRegisterLength = 1;
+
+ SlaveAddress.SmbusDeviceAddress = EXTERNAL_DEVICE_REGISTER_TO_SLAVE_ADDRESS(Register);
+ DeviceRegister = (UINT8)EXTERNAL_DEVICE_REGISTER_TO_REGISTER(Register);
+
+ //Write DeviceRegister.
+ Status = Smbus->Execute(Smbus, SlaveAddress, 0, EfiSmbusWriteBlock, FALSE, &DeviceRegisterLength, &DeviceRegister);
+ if (EFI_ERROR(Status)) {
+ return Status;
+ }
+
+ //Read Data
+ Status = Smbus->Execute(Smbus, SlaveAddress, 0, EfiSmbusReadBlock, FALSE, &Length, Buffer);
+ return Status;
+}
+
+EFI_STATUS
+Write (
+ IN EMBEDDED_EXTERNAL_DEVICE *This,
+ IN UINTN Register,
+ IN UINTN Length,
+ IN VOID *Buffer
+ )
+{
+ EFI_STATUS Status;
+ EFI_SMBUS_DEVICE_ADDRESS SlaveAddress;
+ UINT8 DeviceRegister;
+ UINTN DeviceBufferLength = Length + 1;
+ UINT8 *DeviceBuffer;
+
+ SlaveAddress.SmbusDeviceAddress = EXTERNAL_DEVICE_REGISTER_TO_SLAVE_ADDRESS(Register);
+ DeviceRegister = (UINT8)EXTERNAL_DEVICE_REGISTER_TO_REGISTER(Register);
+
+ //Prepare buffer for writing
+ DeviceBuffer = (UINT8 *)AllocatePool(DeviceBufferLength);
+ if (DeviceBuffer == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto exit;
+ }
+
+ //Set Device register followed by data to write.
+ DeviceBuffer[0] = DeviceRegister;
+ CopyMem(&DeviceBuffer[1], Buffer, Length);
+
+ //Write Data
+ Status = Smbus->Execute(Smbus, SlaveAddress, 0, EfiSmbusWriteBlock, FALSE, &DeviceBufferLength, DeviceBuffer);
+ if (EFI_ERROR(Status)) {
+ goto exit;
+ }
+
+exit:
+ if (DeviceBuffer) {
+ FreePool(DeviceBuffer);
+ }
+
+ return Status;
+}
+
+EMBEDDED_EXTERNAL_DEVICE ExternalDevice = {
+ Read,
+ Write
+};
+
+EFI_STATUS
+TPS65950Initialize (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ Status = gBS->LocateProtocol(&gEfiSmbusHcProtocolGuid, NULL, (VOID **)&Smbus);
+ ASSERT_EFI_ERROR(Status);
+
+ Status = gBS->InstallMultipleProtocolInterfaces(&ImageHandle, &gEmbeddedExternalDeviceProtocolGuid, &ExternalDevice, NULL);
+ return Status;
+}
diff --git a/Omap35xxPkg/TPS65950Dxe/TPS65950.inf b/Omap35xxPkg/TPS65950Dxe/TPS65950.inf
new file mode 100644
index 0000000000..be8ddb2837
--- /dev/null
+++ b/Omap35xxPkg/TPS65950Dxe/TPS65950.inf
@@ -0,0 +1,48 @@
+#/** @file
+#
+# Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.
+# All rights reserved. This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = TPS65950
+ FILE_GUID = 71fe861a-5450-48b6-bfb0-b93522616f99
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+
+ ENTRY_POINT = TPS65950Initialize
+
+
+[Sources.common]
+ TPS65950.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ EmbeddedPkg/EmbeddedPkg.dec
+ Omap35xxPkg/Omap35xxPkg.dec
+
+[LibraryClasses]
+ BaseMemoryLib
+ PcdLib
+ UefiLib
+ UefiDriverEntryPoint
+ MemoryAllocationLib
+
+[Guids]
+
+[Protocols]
+ gEfiSmbusHcProtocolGuid
+ gEmbeddedExternalDeviceProtocolGuid
+
+[Pcd]
+
+[depex]
+ gEfiSmbusHcProtocolGuid