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author | Star Zeng <star.zeng@intel.com> | 2015-11-26 08:52:12 +0000 |
---|---|---|
committer | lzeng14 <lzeng14@Edk2> | 2015-11-26 08:52:12 +0000 |
commit | ad7f6bc2e1163125cdb26f6b0e6695554028626a (patch) | |
tree | c932d1bd7bb2dc8ea7123104503b030591ca5267 /ArmVirtPkg/Library/FdtPL011SerialPortLib/FdtPL011SerialPortLib.c | |
parent | ece2806d02a5a5fd863bf0911af0b795ddacf3b0 (diff) | |
download | edk2-ad7f6bc2e1163125cdb26f6b0e6695554028626a.zip edk2-ad7f6bc2e1163125cdb26f6b0e6695554028626a.tar.gz edk2-ad7f6bc2e1163125cdb26f6b0e6695554028626a.tar.bz2 |
ArmVirtPkg: Use SerialDxe in MdeModulePkg instead of EmbeddedPkg
Beyond just changing the directly related lines in the FDF and DSC files,
we have to adapt the EarlyFdtPL011SerialPortLib and FdtPL011SerialPortLib
instances as well, in the same patch. This is because the EmbeddedPkg
driver expects the SerialPortSetAttributes(),
SerialPortSetControl() and SerialPortGetControl() functions from
SerialPortExtLib, while the MdeModulePkg driver expects them from
SerialPortLib itself.
We cannot implement these functions in ArmVirtPkg's SerialPortLib
instances *before* flipping the driver, because it would cause double
function definitions in the EmbeddedPkg driver. We also can't implement
the functions *after* flipping the driver, because it would cause
unresolved function references in the MdeModulePkg driver. Therefore
we have to implement the functions simultaneously with the driver
replacement.
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18973 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmVirtPkg/Library/FdtPL011SerialPortLib/FdtPL011SerialPortLib.c')
-rw-r--r-- | ArmVirtPkg/Library/FdtPL011SerialPortLib/FdtPL011SerialPortLib.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/ArmVirtPkg/Library/FdtPL011SerialPortLib/FdtPL011SerialPortLib.c b/ArmVirtPkg/Library/FdtPL011SerialPortLib/FdtPL011SerialPortLib.c index aced666..b73ab8f 100644 --- a/ArmVirtPkg/Library/FdtPL011SerialPortLib/FdtPL011SerialPortLib.c +++ b/ArmVirtPkg/Library/FdtPL011SerialPortLib/FdtPL011SerialPortLib.c @@ -5,6 +5,7 @@ Copyright (c) 2012 - 2013, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2014, Linaro Ltd. All rights reserved.<BR>
Copyright (c) 2014, Red Hat, Inc.<BR>
+ Copyright (c) 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
@@ -148,3 +149,89 @@ SerialPortPoll ( }
return FALSE;
}
+
+/**
+ Sets the baud rate, receive FIFO depth, transmit/receice time out, parity,
+ data bits, and stop bits on a serial device.
+
+ @param BaudRate The requested baud rate. A BaudRate value of 0 will use the
+ device's default interface speed.
+ On output, the value actually set.
+ @param ReveiveFifoDepth The requested depth of the FIFO on the receive side of the
+ serial interface. A ReceiveFifoDepth value of 0 will use
+ the device's default FIFO depth.
+ On output, the value actually set.
+ @param Timeout The requested time out for a single character in microseconds.
+ This timeout applies to both the transmit and receive side of the
+ interface. A Timeout value of 0 will use the device's default time
+ out value.
+ On output, the value actually set.
+ @param Parity The type of parity to use on this serial device. A Parity value of
+ DefaultParity will use the device's default parity value.
+ On output, the value actually set.
+ @param DataBits The number of data bits to use on the serial device. A DataBits
+ vaule of 0 will use the device's default data bit setting.
+ On output, the value actually set.
+ @param StopBits The number of stop bits to use on this serial device. A StopBits
+ value of DefaultStopBits will use the device's default number of
+ stop bits.
+ On output, the value actually set.
+
+ @retval RETURN_SUCCESS The new attributes were set on the serial device.
+ @retval RETURN_UNSUPPORTED The serial device does not support this operation.
+ @retval RETURN_INVALID_PARAMETER One or more of the attributes has an unsupported value.
+ @retval RETURN_DEVICE_ERROR The serial device is not functioning correctly.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortSetAttributes (
+ IN OUT UINT64 *BaudRate,
+ IN OUT UINT32 *ReceiveFifoDepth,
+ IN OUT UINT32 *Timeout,
+ IN OUT EFI_PARITY_TYPE *Parity,
+ IN OUT UINT8 *DataBits,
+ IN OUT EFI_STOP_BITS_TYPE *StopBits
+ )
+{
+ return RETURN_UNSUPPORTED;
+}
+
+/**
+ Sets the control bits on a serial device.
+
+ @param Control Sets the bits of Control that are settable.
+
+ @retval RETURN_SUCCESS The new control bits were set on the serial device.
+ @retval RETURN_UNSUPPORTED The serial device does not support this operation.
+ @retval RETURN_DEVICE_ERROR The serial device is not functioning correctly.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortSetControl (
+ IN UINT32 Control
+ )
+{
+ return RETURN_UNSUPPORTED;
+}
+
+/**
+ Retrieve the status of the control bits on a serial device.
+
+ @param Control A pointer to return the current control signals from the serial device.
+
+ @retval RETURN_SUCCESS The control bits were read from the serial device.
+ @retval RETURN_UNSUPPORTED The serial device does not support this operation.
+ @retval RETURN_DEVICE_ERROR The serial device is not functioning correctly.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortGetControl (
+ OUT UINT32 *Control
+ )
+{
+ return RETURN_UNSUPPORTED;
+}
+
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