So that the driver can work on a certain hardware when a platform module
dynamically changes the PCD value.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu...@intel.com>
Cc: Feng Tian <feng.t...@intel.com>
---
.../Bus/Isa/IsaSerialDxe/IsaSerialDxe.inf | 12 +++++++-----
IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/Serial.c | 6 +++---
IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/Serial.h | 8 +-------
3 files changed, 11 insertions(+), 15 deletions(-)
diff --git a/IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/IsaSerialDxe.inf
b/IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/IsaSerialDxe.inf
index 064d4a0..4abaac9 100644
--- a/IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/IsaSerialDxe.inf
+++ b/IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/IsaSerialDxe.inf
@@ -4,7 +4,7 @@
# Produces the Serial I/O protocol for standard UARTS using ISA I/O. This
driver
# supports the 8250, 16450, 16550 and 16550A UART types.
#
-# Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR>
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD
License
@@ -42,6 +42,7 @@
[Packages]
MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
IntelFrameworkPkg/IntelFrameworkPkg.dec
IntelFrameworkModulePkg/IntelFrameworkModulePkg.dec
@@ -69,10 +70,11 @@
gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdIsaBusSerialUseHalfHandshake|FALSE
## CONSUMES
[Pcd]
- gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate|115200 ## CONSUMES
- gEfiMdePkgTokenSpaceGuid.PcdUartDefaultDataBits|8 ## CONSUMES
- gEfiMdePkgTokenSpaceGuid.PcdUartDefaultParity|1 ## CONSUMES
- gEfiMdePkgTokenSpaceGuid.PcdUartDefaultStopBits|1 ## CONSUMES
+ gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate|115200 ## CONSUMES
+ gEfiMdePkgTokenSpaceGuid.PcdUartDefaultDataBits|8 ## CONSUMES
+ gEfiMdePkgTokenSpaceGuid.PcdUartDefaultParity|1 ## CONSUMES
+ gEfiMdePkgTokenSpaceGuid.PcdUartDefaultStopBits|1 ## CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdSerialClockRate|1843200 ## CONSUMES
[UserExtensions.TianoCore."ExtraFiles"]
IsaSerialDxeExtra.uni
diff --git a/IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/Serial.c
b/IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/Serial.c
index 15d2bab..57ee669 100644
--- a/IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/Serial.c
+++ b/IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/Serial.c
@@ -1,7 +1,7 @@
/** @file
Serial driver for standard UARTS on an ISA bus.
-Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
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
@@ -1393,7 +1393,7 @@ IsaSerialSetAttributes (
// Compute divisor use to program the baud rate using a round determination
//
Divisor = (UINT32) DivU64x32Remainder (
- SERIAL_PORT_INPUT_CLOCK,
+ PcdGet32 (PcdSerialClockRate),
((UINT32) BaudRate * 16),
&Remained
);
@@ -1410,7 +1410,7 @@ IsaSerialSetAttributes (
//
// Compute the actual baud rate that the serial port will be programmed for.
//
- BaudRate = SERIAL_PORT_INPUT_CLOCK / Divisor / 16;
+ BaudRate = PcdGet32 (PcdSerialClockRate) / Divisor / 16;
//
// Put serial port on Divisor Latch Mode
diff --git a/IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/Serial.h
b/IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/Serial.h
index c8d9cb1..9d50ca9 100644
--- a/IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/Serial.h
+++ b/IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/Serial.h
@@ -1,7 +1,7 @@
/** @file
Include for Serial Driver
-Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
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
@@ -128,12 +128,6 @@ typedef struct {
EFI_SERIAL_OUTPUT_BUFFER_EMPTY | \
EFI_SERIAL_INPUT_BUFFER_EMPTY)
-
-//
-// (24000000/13)MHz input clock
-//
-#define SERIAL_PORT_INPUT_CLOCK 1843200
-
//
// 115200 baud with rounding errors
//
--
1.9.5.msysgit.1
------------------------------------------------------------------------------
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