diff options
| author | Albecki, Mateusz <mateusz.albecki@intel.com> | 2019-08-09 22:36:17 +0800 |
|---|---|---|
| committer | Hao A Wu <hao.a.wu@intel.com> | 2019-08-13 10:54:35 +0800 |
| commit | 1bfd58c22e1e123b2219ca2f21163c5ab7a7f62f (patch) | |
| tree | d2c9b10ec019a8c1240d1a2ea41059e5e4246e42 /MdeModulePkg/Include/Protocol | |
| parent | 12dcad5b1ec58eb33c351854ae37942b996ed2e5 (diff) | |
| download | edk2-1bfd58c22e1e123b2219ca2f21163c5ab7a7f62f.tar.gz | |
MdeModulePkg: Add definition of the EDKII_UFS_HC_PLATFORM_PROTOCOL
https://bugzilla.tianocore.org/show_bug.cgi?id=1343
EDKII_UFS_HC_PLATFORM_PROTOCOL will allow the platform to inject
platform specific logic into standard UFS flows. Right now we
support callbacks pre and post host controller enable and pre
and post link startup. Provided callbacks allow the platform
driver to inject UIC programming after HCE is set which is
a standard initialization step covered by UFS specification as
well as cover some additional use cases during other callbacks.
For instance platform driver may switch to fast mode after link
startup.
We also allow the platform to override host controller capabilities
and version which might be useful to manage silicon bugs or
allow testing experimental features from new versions of the
specification.
Signed-off-by: Mateusz Albecki <mateusz.albecki@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Diffstat (limited to 'MdeModulePkg/Include/Protocol')
| -rw-r--r-- | MdeModulePkg/Include/Protocol/UfsHostControllerPlatform.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/MdeModulePkg/Include/Protocol/UfsHostControllerPlatform.h b/MdeModulePkg/Include/Protocol/UfsHostControllerPlatform.h new file mode 100644 index 0000000000..0f6732a1f8 --- /dev/null +++ b/MdeModulePkg/Include/Protocol/UfsHostControllerPlatform.h @@ -0,0 +1,124 @@ +/** @file
+ EDKII_UFS_HC_PLATFORM_PROTOCOL definition.
+
+Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __EDKII_UFS_HC_PLATFORM_PROTOCOL_H__
+#define __EDKII_UFS_HC_PLATFORM_PROTOCOL_H__
+
+#include <Protocol/UfsHostController.h>
+
+#define EDKII_UFS_HC_PLATFORM_PROTOCOL_VERSION 1
+
+extern EFI_GUID gEdkiiUfsHcPlatformProtocolGuid;
+
+typedef struct _EDKII_UFS_HC_PLATFORM_PROTOCOL EDKII_UFS_HC_PLATFORM_PROTOCOL;
+
+typedef struct _EDKII_UFS_HC_DRIVER_INTERFACE EDKII_UFS_HC_DRIVER_INTERFACE;
+
+typedef struct {
+ UINT32 Opcode;
+ UINT32 Arg1;
+ UINT32 Arg2;
+ UINT32 Arg3;
+} EDKII_UIC_COMMAND;
+
+/**
+ Execute UIC command
+
+ @param[in] This Pointer to driver interface produced by the UFS controller.
+ @param[in, out] UicCommand Descriptor of the command that will be executed.
+
+ @retval EFI_SUCCESS Command executed successfully.
+ @retval EFI_INVALID_PARAMETER This or UicCommand is NULL.
+ @retval Others Command failed to execute.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_UFS_EXEC_UIC_COMMAND) (
+ IN EDKII_UFS_HC_DRIVER_INTERFACE *This,
+ IN OUT EDKII_UIC_COMMAND *UicCommand
+);
+
+struct _EDKII_UFS_HC_DRIVER_INTERFACE {
+ ///
+ /// Protocol to accesss host controller MMIO and PCI registers.
+ ///
+ EDKII_UFS_HOST_CONTROLLER_PROTOCOL *UfsHcProtocol;
+ ///
+ /// Function implementing UIC command execution.
+ ///
+ EDKII_UFS_EXEC_UIC_COMMAND UfsExecUicCommand;
+};
+
+typedef struct {
+ UINT32 Capabilities;
+ UINT32 Version;
+} EDKII_UFS_HC_INFO;
+
+/**
+ Allows platform protocol to override host controller information
+
+ @param[in] ControllerHandle Handle of the UFS controller.
+ @param[in, out] HcInfo Pointer EDKII_UFS_HC_INFO associated with host controller.
+
+ @retval EFI_SUCCESS Function completed successfully.
+ @retval EFI_INVALID_PARAMETER HcInfo is NULL.
+ @retval Others Function failed to complete.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_UFS_HC_PLATFORM_OVERRIDE_HC_INFO) (
+ IN EFI_HANDLE ControllerHandle,
+ IN OUT EDKII_UFS_HC_INFO *HcInfo
+);
+
+typedef enum {
+ EdkiiUfsHcPreHce,
+ EdkiiUfsHcPostHce,
+ EdkiiUfsHcPreLinkStartup,
+ EdkiiUfsHcPostLinkStartup
+} EDKII_UFS_HC_PLATFORM_CALLBACK_PHASE;
+
+/**
+ Callback function for platform driver.
+
+ @param[in] ControllerHandle Handle of the UFS controller.
+ @param[in] CallbackPhase Specifies when the platform protocol is called
+ @param[in, out] CallbackData Data specific to the callback phase.
+ For PreHce and PostHce - EDKII_UFS_HC_DRIVER_INTERFACE.
+ For PreLinkStartup and PostLinkStartup - EDKII_UFS_HC_DRIVER_INTERFACE.
+
+ @retval EFI_SUCCESS Override function completed successfully.
+ @retval EFI_INVALID_PARAMETER CallbackPhase is invalid or CallbackData is NULL when phase expects valid data.
+ @retval Others Function failed to complete.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_UFS_HC_PLATFORM_CALLBACK) (
+ IN EFI_HANDLE ControllerHandle,
+ IN EDKII_UFS_HC_PLATFORM_CALLBACK_PHASE CallbackPhase,
+ IN OUT VOID *CallbackData
+);
+
+struct _EDKII_UFS_HC_PLATFORM_PROTOCOL {
+ ///
+ /// Version of the protocol.
+ ///
+ UINT32 Version;
+ ///
+ /// Allows platform driver to override host controller information.
+ ///
+ EDKII_UFS_HC_PLATFORM_OVERRIDE_HC_INFO OverrideHcInfo;
+ ///
+ /// Allows platform driver to implement platform specific flows
+ /// for host controller.
+ ///
+ EDKII_UFS_HC_PLATFORM_CALLBACK Callback;
+};
+
+#endif
+
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