Reviewed-by: Zhiguang Liu <zhiguang....@intel.com>
> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Oleksiy
> Yakovlev
> Sent: Friday, May 8, 2020 3:03 AM
> To: devel@edk2.groups.io
> Cc: Gao, Liming <liming....@intel.com>; Kinney, Michael D
> <michael.d.kin...@intel.com>; fel...@ami.com; oleks...@ami.com;
> rob...@ami.com
> Subject: [edk2-devel] [PATCH 4/5] MdePkg: Added header file for Delayed
> Dispatch PPI
>
> From: Robert Phelps <rob...@ami.com>
>
> Created new header file for the new EFI_DELAYED_DISPATCH_PPI PPI (PI 1.7
> Mantis 1891)
>
> Signed-off-by: Robert Phelps <rob...@ami.com>
> ---
> MdePkg/Include/Ppi/DelayedDispatch.h | 79
> ++++++++++++++++++++++++++++
> MdePkg/MdePkg.dec | 3 ++
> 2 files changed, 82 insertions(+)
> create mode 100644 MdePkg/Include/Ppi/DelayedDispatch.h
>
> diff --git a/MdePkg/Include/Ppi/DelayedDispatch.h
> b/MdePkg/Include/Ppi/DelayedDispatch.h
> new file mode 100644
> index 0000000000..4f8b11bcf6
> --- /dev/null
> +++ b/MdePkg/Include/Ppi/DelayedDispatch.h
> @@ -0,0 +1,79 @@
> +/** @file
> + Provide timed event service in PEI
> +**/
> +#ifndef __DELAYED_DISPATCH_PPI_H__
> +#define __DELAYED_DISPATCH_PPI_H__
> +
> +///
> +/// Global ID for EFI_DELAYED_DISPATCH_PPI_GUID /// #define
> +EFI_DELAYED_DISPATCH_PPI_GUID \
> + { \
> + 0x869c711d, 0x649c, 0x44fe, { 0x8b, 0x9e, 0x2c, 0xbb, 0x29, 0x11,
> +0xc3, 0xe6} } \
> + }
> +
> +
> +/**
> + Delayed Dispatch function. This routine is called sometime after the
> +required
> + delay. Upon return, if NewDelay is 0, the function is unregistered.
> +If NewDelay
> + is not zero, this routine will be called again after the new delay period.
> +
> + @param[in,out] Context Pointer to Context. Can be updated by
> routine.
> + @param[out] NewDelay The new delay in us. Leave at 0 to
> unregister
> callback.
> +
> +**/
> +
> +typedef
> +VOID
> +(EFIAPI *EFI_DELAYED_DISPATCH_FUNCTION) (
> + IN OUT UINT64 *Context,
> + OUT UINT32 *NewDelay
> + );
> +
> +
> +///
> +/// The forward declaration for EFI_DELAYED_DISPATCH_PPI ///
> +
> +typedef struct _EFI_DELAYED_DISPATCH_PPI EFI_DELAYED_DISPATCH_PPI;
> +
> +
> +/**
> +Register a callback to be called after a minimum delay has occurred.
> +
> +This service is the single member function of the
> +EFI_DELAYED_DISPATCH_PPI
> +
> + @param This Pointer to the EFI_DELAYED_DISPATCH_PPI instance
> + @param Function Function to call back
> + @param Context Context data
> + @param Delay Delay interval
> +
> + @retval EFI_SUCCESS Function successfully loaded
> + @retval EFI_INVALID_PARAMETER One of the Arguments is not
> supported
> + @retval EFI_OUT_OF_RESOURCES No more entries
> +
> +**/
> +typedef
> +EFI_STATUS
> +(EFIAPI *EFI_DELAYED_DISPATCH_REGISTER)(
> + IN EFI_DELAYED_DISPATCH_PPI *This,
> + IN EFI_DELAYED_DISPATCH_FUNCTION Function,
> + IN UINT64 Context,
> + OUT UINT32 Delay
> + );
> +
> +
> +///
> +/// This PPI is a pointer to the Delayed Dispatch Service.
> +/// This service will be published by the Pei Foundation. The PEI
> +Foundation /// will use this service to relaunch a known function that
> +requests a delayed /// execution.
> +///
> +struct _EFI_DELAYED_DISPATCH_PPI {
> + EFI_DELAYED_DISPATCH_REGISTER Register;
> +};
> +
> +
> +extern EFI_GUID gEfiPeiDelayedDispatchPpiGuid;
> +
> +#endif
> diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec index
> c64cad75dd..6ab42b4bb5 100644
> --- a/MdePkg/MdePkg.dec
> +++ b/MdePkg/MdePkg.dec
> @@ -942,6 +942,9 @@
> ## Include/Ppi/PeiCoreFvLocation.h
> gEfiPeiCoreFvLocationPpiGuid = { 0x52888eae, 0x5b10, 0x47d0, { 0xa8,
> 0x7f,
> 0xb8, 0x22, 0xab, 0xa0, 0xca, 0xf4 }}
>
> + ## Include/Ppi/DelayedDispatch.h
> + gEfiPeiDelayedDispatchPpiGuid = { 0x869c711d, 0x649c, 0x44fe, {
> + 0x8b, 0x9e, 0x2c, 0xbb, 0x29, 0x11, 0xc3, 0xe6 }}
> +
> [Protocols]
> ## Include/Protocol/Pcd.h
> gPcdProtocolGuid = { 0x11B34006, 0xD85B, 0x4D0A, { 0xA2,
> 0x90,
> 0xD5, 0xA5, 0x71, 0x31, 0x0E, 0xF7 }}
> --
> 2.24.1.windows.2
>
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