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authoroliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524>2012-09-28 10:56:12 +0000
committeroliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524>2012-09-28 10:56:12 +0000
commit7d49ced0cf64fbb3abf6b4d97dac4806bd1d9ee6 (patch)
tree3854e3307400ba2046bc4fa8f0337ea5a0bd729f /ArmPlatformPkg
parent21de944e0355f706fbbfc8c612b103a3b55dc3cb (diff)
downloadedk2-7d49ced0cf64fbb3abf6b4d97dac4806bd1d9ee6.tar.gz
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EmbeddedPkg: Introduced 'SerialPortExtLib.h'
EmbeddedPkg/SerialDxe was not allowing to set/get the control of the Serial connection because the needed functions were not exposed in SerialPortLib.h. This commit introduces an additional library to extend the SerialPort features. Signed-off-by: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13773 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPlatformPkg')
-rw-r--r--ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.c83
-rw-r--r--ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.inf1
2 files changed, 83 insertions, 1 deletions
diff --git a/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.c b/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.c
index 2395ffd6c8..7ccd09bd48 100644
--- a/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.c
+++ b/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.c
@@ -19,11 +19,12 @@
#include <Library/IoLib.h>
#include <Library/PcdLib.h>
#include <Library/SerialPortLib.h>
+#include <Library/SerialPortExtLib.h>
#include <Drivers/PL011Uart.h>
-/*
+/**
Programmed hardware of Serial port.
@@ -101,3 +102,83 @@ SerialPortPoll (
{
return PL011UartPoll ((UINTN)PcdGet64 (PcdSerialRegisterBase));
}
+
+/**
+ Set new attributes to PL011.
+
+ @param BaudRate The baud rate of the serial device. If the baud rate is not supported,
+ the speed will be reduced down to the nearest supported one and the
+ variable's value will be updated accordingly.
+ @param ReceiveFifoDepth The number of characters the device will buffer on input. If the specified
+ value is not supported, the variable's value will be reduced down to the
+ nearest supported one.
+ @param Timeout If applicable, the number of microseconds the device will wait
+ before timing out a Read or a Write operation.
+ @param Parity If applicable, this is the EFI_PARITY_TYPE that is computer or checked
+ as each character is transmitted or received. If the device does not
+ support parity, the value is the default parity value.
+ @param DataBits The number of data bits in each character
+ @param StopBits If applicable, the EFI_STOP_BITS_TYPE number of stop bits per character.
+ If the device does not support stop bits, the value is the default stop
+ bit value.
+
+ @retval EFI_SUCCESS All attributes were set correctly on the serial device.
+ @retval EFI_INVALID_PARAMETERS One or more of the attributes has an unsupported value.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortSetAttributes (
+ IN UINT64 BaudRate,
+ IN UINT32 ReceiveFifoDepth,
+ IN UINT32 Timeout,
+ IN EFI_PARITY_TYPE Parity,
+ IN UINT8 DataBits,
+ IN EFI_STOP_BITS_TYPE StopBits
+ )
+{
+ return PL011UartInitializePort (
+ (UINTN)PcdGet64 (PcdSerialRegisterBase),
+ BaudRate,
+ ReceiveFifoDepth,
+ Parity,
+ DataBits,
+ StopBits);
+}
+
+/**
+ Set the serial device control bits.
+
+ @param Control Control bits which are to be set on the serial device.
+
+ @retval EFI_SUCCESS The new control bits were set on the serial device.
+ @retval EFI_UNSUPPORTED The serial device does not support this operation.
+ @retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortSetControl (
+ IN UINT32 Control
+ )
+{
+ return PL011UartSetControl((UINTN)PcdGet64 (PcdSerialRegisterBase), Control);
+}
+
+/**
+ Get the serial device control bits.
+
+ @param Control Control signals read from the serial device.
+
+ @retval EFI_SUCCESS The control bits were read from the serial device.
+ @retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortGetControl (
+ OUT UINT32 *Control
+ )
+{
+ return PL011UartGetControl((UINTN)PcdGet64 (PcdSerialRegisterBase), Control);
+}
diff --git a/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.inf b/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.inf
index f3c7285af5..13168dfc4c 100644
--- a/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.inf
+++ b/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.inf
@@ -30,6 +30,7 @@
PcdLib
[Packages]
+ EmbeddedPkg/EmbeddedPkg.dec
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec