Update Metronome driver to use the IoLib instead of the CPU I/O Protocol.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6242 6f19259b-4bc3-4df7-8a09-765794883524

2 files changed, 3 insertions, 79 deletions

diff --git a/DuetPkg/LegacyMetronome/Metronome.c b/DuetPkg/LegacyMetronome/Metronome.c
index acc0dad45c..2307529e2a 100644
--- a/DuetPkg/LegacyMetronome/Metronome.c
+++ b/DuetPkg/LegacyMetronome/Metronome.c
@@ -34,74 +34,8 @@ EFI_METRONOME_ARCH_PROTOCOL mMetronome = {
 };

 

 //

-// The CPU I/O Protocol used to access system hardware

-//

-EFI_CPU_IO_PROTOCOL         *mCpuIo = NULL;

-

-//

 // Worker Functions

 //

-VOID

-IoWrite8 (

-  UINT16  Port,

-  UINT8   Data

-  )

-/*++

-

-Routine Description:

-

-  Write an 8 bit value to an I/O port and save it to the S3 script

-

-Arguments:

-

-Returns: 

-

-  None.

-

---*/

-// TODO:    Port - add argument and description to function comment

-// TODO:    Data - add argument and description to function comment

-{

-  mCpuIo->Io.Write (

-              mCpuIo,

-              EfiCpuIoWidthUint8,

-              Port,

-              1,

-              &Data

-              );

-

-}

-

-UINT8

-ReadRefresh (

-  VOID

-  )

-/*++

-

-Routine Description:

-

-  Read the refresh bit from the REFRESH_PORT

-

-Arguments:

-

-Returns: 

-

-  None.

-

---*/

-{

-  UINT8 Data;

-

-  mCpuIo->Io.Read (

-              mCpuIo,

-              EfiCpuIoWidthUint8,

-              REFRESH_PORT,

-              1,

-              &Data

-              );

-  return (UINT8) (Data & REFRESH_ON);

-}

-

 EFI_STATUS

 EFIAPI

 WaitForTick (

@@ -130,10 +64,8 @@ Returns:
   // Wait for TickNumber toggles of the Refresh bit

   //

   for (; TickNumber != 0x00; TickNumber--) {

-    while (ReadRefresh () == REFRESH_ON)

-      ;

-    while (ReadRefresh () == REFRESH_OFF)

-      ;

+    while ((IoRead8(REFRESH_PORT) & REFRESH_ON) == REFRESH_ON);

+    while ((IoRead8(REFRESH_PORT) & REFRESH_ON) == REFRESH_OFF);

   }

 

   return EFI_SUCCESS;

@@ -172,14 +104,6 @@ Returns:
   ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiMetronomeArchProtocolGuid);

 

   //

-  // Get the CPU I/O Protocol that this driver requires

-  // If the CPU I/O Protocol is not found, then ASSERT because the dependency expression

-  // should guarantee that it is present in the handle database.

-  //

-  Status = gBS->LocateProtocol (&gEfiCpuIoProtocolGuid, NULL, &mCpuIo);

-  ASSERT_EFI_ERROR (Status);

-

-  //

   // Program port 61 timer 1 as refresh timer. We could use ACPI timer in the

   // future.

   //

diff --git a/DuetPkg/LegacyMetronome/Metronome.h b/DuetPkg/LegacyMetronome/Metronome.h
index 87a12cbc34..df8d58d05c 100644
--- a/DuetPkg/LegacyMetronome/Metronome.h
+++ b/DuetPkg/LegacyMetronome/Metronome.h
@@ -27,11 +27,11 @@ Abstract:
 //

 #include <PiDxe.h>

 

-#include <Protocol/CpuIo.h>

 #include <Protocol/Metronome.h>

 

 #include <Library/DebugLib.h>

 #include <Library/UefiBootServicesTableLib.h>

+#include <Library/IoLib.h>

 

 //

 // Private definitions