diff options
| author | Leif Lindholm <leif.lindholm@linaro.org> | 2017-08-03 12:24:30 +0100 |
|---|---|---|
| committer | Leif Lindholm <leif.lindholm@linaro.org> | 2017-08-03 12:24:30 +0100 |
| commit | 600081b52debde8d06585fdaf09fac16d323670f (patch) | |
| tree | fef3287095bb56eba411c0b31c525283978b71fb /Silicon/Hisilicon/Library/Dw8250SerialPortLib | |
| parent | f4d38e50c0f24eb78eb003a94f583025621c63db (diff) | |
| download | edk2-platforms-600081b52debde8d06585fdaf09fac16d323670f.tar.xz | |
Platform,Silicon: Import Hisilicon D02,D03,D05 and HiKey
Imported from commit efd798c1eb of
https://git.linaro.org/uefi/OpenPlatformPkg.git
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Diffstat (limited to 'Silicon/Hisilicon/Library/Dw8250SerialPortLib')
3 files changed, 463 insertions, 0 deletions
diff --git a/Silicon/Hisilicon/Library/Dw8250SerialPortLib/Dw8250SerialPortLib.c b/Silicon/Hisilicon/Library/Dw8250SerialPortLib/Dw8250SerialPortLib.c new file mode 100644 index 0000000000..ce70ca5ee1 --- /dev/null +++ b/Silicon/Hisilicon/Library/Dw8250SerialPortLib/Dw8250SerialPortLib.c @@ -0,0 +1,302 @@ +/** @file
+ UART Serial Port library functions
+
+ Copyright (c) 2006 - 2009, Intel Corporation
+ Copyright (c) 2015 - 2016, Hisilicon Limited. All rights reserved.
+ Copyright (c) 2015 - 2016, Linaro Limited. All rights reserved.
+ All rights reserved. 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
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+ Based on the files under ArmPlatformPkg/Library/PL011SerialPortLib/
+**/
+#include <Uefi.h>
+#include <Library/PcdLib.h>
+#include <Library/SerialPortLib.h>
+#include <Library/IoLib.h>
+#include <Protocol/SerialIo.h>
+
+#include "Dw8250SerialPortLib.h"
+
+
+/**
+ Initialize the serial device hardware.
+
+ If no initialization is required, then return RETURN_SUCCESS.
+ If the serial device was successfuly initialized, then return RETURN_SUCCESS.
+ If the serial device could not be initialized, then return RETURN_DEVICE_ERROR.
+
+ @retval RETURN_SUCCESS The serial device was initialized.
+ @retval RETURN_DEVICE_ERROR The serail device could not be initialized.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortInitialize (
+ VOID
+ )
+{
+ UINT32 ulUartClkFreq;
+
+ MmioWrite8 (UART_LCR_REG, UART_LCR_DLS8);
+ MmioWrite8 (UART_FCR_REG, UART_FCR_EN | UART_FCR_RXCLR | UART_FCR_TXCLR);
+ MmioWrite8 (UART_LCR_REG, UART_LCR_DLAB | UART_LCR_DLS8);
+
+ ulUartClkFreq = PcdGet32(PcdUartClkInHz);
+
+ MmioWrite8 (UART_DLL_REG, (ulUartClkFreq / (16 * (UINT32)BAUDRATE) ) & 0xff);
+ MmioWrite8 (UART_DLH_REG, ((ulUartClkFreq/ (16 * (UINT32)BAUDRATE) ) >> 8 ) & 0xff);
+ MmioWrite8 (UART_LCR_REG, UART_LCR_DLS8);
+ MmioWrite8 (UART_IEL_REG, 0x00);
+
+ return RETURN_SUCCESS;
+}
+
+
+/**
+ Write data from buffer to serial device.
+
+ Writes NumberOfBytes data bytes from Buffer to the serial device.
+ The number of bytes actually written to the serial device is returned.
+ If the return value is less than NumberOfBytes, then the write operation failed.
+
+ If Buffer is NULL, then ASSERT().
+
+ If NumberOfBytes is zero, then return 0.
+
+ @param Buffer Pointer to the data buffer to be written.
+ @param NumberOfBytes Number of bytes to written to the serial device.
+
+ @retval 0 NumberOfBytes is 0.
+ @retval >0 The number of bytes written to the serial device.
+ If this value is less than NumberOfBytes, then the read operation failed.
+
+**/
+UINTN
+EFIAPI
+SerialPortWrite (
+ IN UINT8 *Buffer,
+ IN UINTN NumberOfBytes
+)
+{
+ UINTN Result;
+
+ if (NULL == Buffer) {
+ return 0;
+ }
+
+ Result = NumberOfBytes;
+
+ while (NumberOfBytes--) {
+
+ SerialPortWriteChar(*Buffer);
+ Buffer++;
+ }
+
+ return Result;
+}
+
+
+/**
+ Reads data from a serial device into a buffer.
+
+ @param Buffer Pointer to the data buffer to store the data read from the serial device.
+ @param NumberOfBytes Number of bytes to read from the serial device.
+
+ @retval 0 NumberOfBytes is 0.
+ @retval >0 The number of bytes read from the serial device.
+ If this value is less than NumberOfBytes, then the read operation failed.
+
+**/
+UINTN
+EFIAPI
+SerialPortRead (
+ OUT UINT8 *Buffer,
+ IN UINTN NumberOfBytes
+)
+{
+ UINTN Result;
+
+ if (NULL == Buffer) {
+ return 0;
+ }
+
+ Result = 0;
+
+ while (NumberOfBytes--) {
+ //
+ // Wait for the serail port to be ready.
+ //
+ *Buffer=SerialPortReadChar();
+ Buffer++ ;
+ Result++;
+ }
+
+ return Result;
+}
+
+/**
+ Polls a serial device to see if there is any data waiting to be read.
+
+ Polls aserial device to see if there is any data waiting to be read.
+ If there is data waiting to be read from the serial device, then TRUE is returned.
+ If there is no data waiting to be read from the serial device, then FALSE is returned.
+
+ @retval TRUE Data is waiting to be read from the serial device.
+ @retval FALSE There is no data waiting to be read from the serial device.
+
+**/
+BOOLEAN
+EFIAPI
+SerialPortPoll (
+ VOID
+ )
+{
+
+ return (BOOLEAN) ((MmioRead8 (UART_LSR_REG) & UART_LSR_DR) == UART_LSR_DR);
+
+}
+
+
+VOID SerialPortWriteChar(UINT8 scShowChar)
+{
+ UINT32 ulLoop = 0;
+
+ while(ulLoop < (UINT32)UART_SEND_DELAY)
+ {
+
+ if ((MmioRead8 (UART_USR_REG) & 0x02) == 0x02)
+ {
+ break;
+ }
+
+ ulLoop++;
+ }
+ MmioWrite8 (UART_THR_REG, (UINT8)scShowChar);
+
+ ulLoop = 0;
+ while(ulLoop < (UINT32)UART_SEND_DELAY)
+ {
+ if ((MmioRead8 (UART_USR_REG) & 0x04) == 0x04)
+ {
+ break;
+ }
+ ulLoop++;
+ }
+
+ return;
+}
+
+
+UINT8 SerialPortReadChar(VOID)
+{
+ UINT8 recvchar = 0;
+
+ while(1)
+ {
+ if ((MmioRead8 (UART_LSR_REG) & UART_LSR_DR) == UART_LSR_DR)
+ {
+ break;
+ }
+ }
+
+ recvchar = MmioRead8 (UART_RBR_REG);
+
+ return recvchar;
+}
+
+/**
+ 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;
+}
+
+/**
+ 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 EFI_UNSUPPORTED;
+}
+
+/**
+ 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
+ )
+{
+
+ if (SerialPortPoll ()) {
+ // If a character is pending don't set EFI_SERIAL_INPUT_BUFFER_EMPTY
+ *Control = EFI_SERIAL_OUTPUT_BUFFER_EMPTY;
+ } else {
+ *Control = EFI_SERIAL_INPUT_BUFFER_EMPTY | EFI_SERIAL_OUTPUT_BUFFER_EMPTY;
+ }
+ return EFI_SUCCESS;
+}
+
diff --git a/Silicon/Hisilicon/Library/Dw8250SerialPortLib/Dw8250SerialPortLib.h b/Silicon/Hisilicon/Library/Dw8250SerialPortLib/Dw8250SerialPortLib.h new file mode 100644 index 0000000000..5e80257289 --- /dev/null +++ b/Silicon/Hisilicon/Library/Dw8250SerialPortLib/Dw8250SerialPortLib.h @@ -0,0 +1,116 @@ +/** @file
+*
+* Copyright (c) 2011-2015, ARM Limited. All rights reserved.
+* Copyright (c) 2015-2016, Hisilicon Limited. All rights reserved.
+* Copyright (c) 2015-2016, Linaro Limited. All rights reserved.
+*
+* 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
+* http://opensource.org/licenses/bsd-license.php
+*
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+* Based on the files under ArmPlatformPkg/Library/PL011SerialPortLib/
+**/
+
+#ifndef __DW8250_SERIALPORTLIB_H__
+#define __DW8250_SERIALPORTLIB_H__
+
+
+#define SERIAL_0_BASE_ADR (PcdGet64(PcdSerialRegisterBase))
+
+
+#define UART_SEND_DELAY (PcdGet32(PcdSerialPortSendDelay))
+#define BAUDRATE (PcdGet64(PcdUartDefaultBaudRate))
+
+
+#define UART_THR_REG (SERIAL_0_BASE_ADR + UART_THR)
+#define UART_RBR_REG (SERIAL_0_BASE_ADR + UART_RBR)
+#define UART_DLL_REG (SERIAL_0_BASE_ADR + UART_DLL)
+#define UART_DLH_REG (SERIAL_0_BASE_ADR + UART_DLH)
+#define UART_IEL_REG (SERIAL_0_BASE_ADR + UART_IEL)
+#define UART_IIR_REG (SERIAL_0_BASE_ADR + UART_IIR)
+#define UART_FCR_REG (SERIAL_0_BASE_ADR + UART_FCR)
+#define UART_LCR_REG (SERIAL_0_BASE_ADR + UART_LCR)
+#define UART_LSR_REG (SERIAL_0_BASE_ADR + UART_LSR)
+#define UART_USR_REG (SERIAL_0_BASE_ADR + UART_USR)
+
+
+#define UART_RBR 0x00
+#define UART_THR 0x00
+#define UART_DLL 0x00
+#define UART_DLH 0x04
+#define UART_IEL 0x04
+#define UART_IIR 0x08
+#define UART_FCR 0x08
+#define UART_LCR 0x0C
+#define UART_MCR 0x10
+#define UART_LSR 0x14
+#define UART_USR 0x7C
+
+/* register definitions */
+
+#define UART_FCR_EN 0x01
+#define UART_FCR_RXCLR 0x02
+#define UART_FCR_TXCLR 0x04
+#define UART_FCR_CLEARFIFO 0x00
+#define UART_FCR_RXL1 0x00
+#define UART_FCR_RXL4 0x40
+#define UART_FCR_RXL8 0x80
+#define UART_FCR_RXL14 0xc0
+#define UART_FCR_TXL0 0x00
+#define UART_FCR_TXL4 0x20
+#define UART_FCR_TXL8 0x30
+#define UART_FCR_TXL14 0x10
+
+/*LCR Name: Line Control Register fields*/
+#define UART_LCR_DLAB 0x80
+#define UART_LCR_EPS 0x10
+#define UART_LCR_PEN 0x08
+#define UART_LCR_STOP 0x04
+#define UART_LCR_DLS8 0x03
+#define UART_LCR_DLS7 0x02
+#define UART_LCR_DLS6 0x01
+#define UART_LCR_DLS5 0x00
+
+
+#define UART_DLH_AND_DLL_WIDTH 0xFF
+
+
+#define UART_IER_PTIME 0x80
+#define UART_IER_ELSI 0x04
+#define UART_IER_ETBEI 0x02
+#define UART_IER_ERBFI 0x01
+
+
+#define UART_IIR_FIFOSE 0xC0
+
+
+#define UART_IIR_InterruptID 0x01
+#define UART_IIR_INTIDTE 0x02
+#define UART_IIR_INTIDRA 0x04
+#define UART_IIR_INTIDRLS 0x06
+#define UART_IIR_INTMASK 0x0f
+#define UART_IIR_RDA 0x04
+#define UART_IIR_TE 0x02
+
+#define UART_LSR_TEMT 0x40
+#define UART_LSR_THRE 0x20
+#define UART_LSR_BI 0x10
+#define UART_LSR_FE 0x08
+#define UART_LSR_PE 0x04
+#define UART_LSR_R 0x02
+#define UART_LSR_DR 0x01
+
+
+#define UART_USR_BUSY 0x01
+
+#define FIFO_MAXSIZE 32
+
+extern UINT8 SerialPortReadChar(VOID);
+extern VOID SerialPortWriteChar(UINT8 scShowChar);
+
+#endif
+
diff --git a/Silicon/Hisilicon/Library/Dw8250SerialPortLib/Dw8250SerialPortLib.inf b/Silicon/Hisilicon/Library/Dw8250SerialPortLib/Dw8250SerialPortLib.inf new file mode 100644 index 0000000000..d7957ea499 --- /dev/null +++ b/Silicon/Hisilicon/Library/Dw8250SerialPortLib/Dw8250SerialPortLib.inf @@ -0,0 +1,45 @@ +#/** @file
+#
+# Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
+# Copyright (c) 2015-2016, Hisilicon Limited. All rights reserved.<BR>
+# Copyright (c) 2015-2016, Linaro Limited. 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
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+# Based on the files under ArmPlatformPkg/Library/PL011SerialPortLib/
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = Dw8250SerialPortLib
+ FILE_GUID = 16D53E86-7EA6-47bd-861F-511ED9B8ABE0
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = SerialPortLib
+
+
+[Sources.common]
+ Dw8250SerialPortLib.c
+
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ ArmPlatformPkg/ArmPlatformPkg.dec
+
+ Silicon/Hisilicon/HisiPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ IoLib
+
+[Pcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdSerialRegisterBase
+ gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate
+ gHisiTokenSpaceGuid.PcdSerialPortSendDelay
+ gHisiTokenSpaceGuid.PcdUartClkInHz
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