+++ /dev/null
-#/**@file\r
-# This library instance produce SerialIo library class for DUET platform.\r
-#\r
-# Copyright (c) 2006 - 2007, Intel Corporation \r
-# All rights reserved. This program and the accompanying materials \r
-# are licensed and made available under the terms and conditions of the BSD License \r
-# which accompanies this distribution. The full text of the license may be found at \r
-# http://opensource.org/licenses/bsd-license.php \r
-# \r
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-# \r
-#\r
-#**/\r
-\r
-[Defines]\r
- INF_VERSION = 0x00010005\r
- BASE_NAME = DuetSerialPortLib\r
- FILE_GUID = 1B25AF84-1EA8-4b52-894E-BFA6880B97FF\r
- MODULE_TYPE = DXE_DRIVER\r
- VERSION_STRING = 1.0\r
- LIBRARY_CLASS = SerialPortLib\r
- EDK_RELEASE_VERSION = 0x00020000\r
- EFI_SPECIFICATION_VERSION = 0x0002000A\r
-\r
-[Packages]\r
- MdePkg/MdePkg.dec\r
-\r
-[LibraryClasses]\r
- SerialPortLib\r
- IoLib\r
-\r
-[Sources.common]\r
- SerialPortLib.c\r
-\r
-\r
+++ /dev/null
-/** @file\r
- UART Serial Port library instance with empty functions.\r
-\r
- Copyright (c) 2006 - 2008, Intel Corporation\r
- All rights reserved. This program and the accompanying materials\r
- are licensed and made available under the terms and conditions of the BSD License\r
- which accompanies this distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-\r
-**/\r
-\r
-#include <Base.h>\r
-\r
-#include <Library/SerialPortLib.h>\r
-#include <Library/IoLib.h>\r
-\r
-//---------------------------------------------\r
-// UART Register Offsets\r
-//---------------------------------------------\r
-#define BAUD_LOW_OFFSET 0x00\r
-#define BAUD_HIGH_OFFSET 0x01\r
-#define IER_OFFSET 0x01\r
-#define LCR_SHADOW_OFFSET 0x01\r
-#define FCR_SHADOW_OFFSET 0x02\r
-#define IR_CONTROL_OFFSET 0x02\r
-#define FCR_OFFSET 0x02\r
-#define EIR_OFFSET 0x02\r
-#define BSR_OFFSET 0x03\r
-#define LCR_OFFSET 0x03\r
-#define MCR_OFFSET 0x04\r
-#define LSR_OFFSET 0x05\r
-#define MSR_OFFSET 0x06\r
-\r
-//---------------------------------------------\r
-// UART Register Bit Defines\r
-//---------------------------------------------\r
-#define LSR_TXRDY 0x20\r
-#define LSR_RXDA 0x01\r
-#define DLAB 0x01\r
-\r
-//---------------------------------------------\r
-// UART Settings\r
-//---------------------------------------------\r
-UINT16 gUartBase = 0x3F8;\r
-UINTN gBps = 115200;\r
-UINT8 gData = 8;\r
-UINT8 gStop = 1;\r
-UINT8 gParity = 0;\r
-UINT8 gBreakSet = 0;\r
-\r
-/**\r
- Initialize the serial device hardware.\r
- \r
- If no initialization is required, then return RETURN_SUCCESS.\r
- If the serial device was successfuly initialized, then return RETURN_SUCCESS.\r
- If the serial device could not be initialized, then return RETURN_DEVICE_ERROR.\r
- \r
- @retval RETURN_SUCCESS The serial device was initialized.\r
- @retval RETURN_DEVICE_ERROR The serail device could not be initialized.\r
-\r
-**/\r
-RETURN_STATUS\r
-EFIAPI\r
-SerialPortInitialize (\r
- VOID\r
- )\r
-{\r
- UINTN Divisor;\r
- UINT8 OutputData;\r
- UINT8 Data;\r
-\r
- //\r
- // Map 5..8 to 0..3\r
- //\r
- Data = (UINT8) (gData - (UINT8) 5);\r
-\r
- //\r
- // Calculate divisor for baud generator\r
- //\r
- Divisor = 115200 / gBps;\r
- \r
- //\r
- // Set communications format\r
- //\r
- OutputData = (UINT8) ((DLAB << 7) | (gBreakSet << 6) | (gParity << 3) | (gStop << 2) | Data);\r
- IoWrite8 ((UINTN) (gUartBase + LCR_OFFSET), OutputData);\r
-\r
- //\r
- // Configure baud rate\r
- //\r
- IoWrite8 ((UINTN) (gUartBase + BAUD_HIGH_OFFSET), (UINT8) (Divisor >> 8));\r
- IoWrite8 ((UINTN) (gUartBase + BAUD_LOW_OFFSET), (UINT8) (Divisor & 0xff));\r
-\r
- //\r
- // Switch back to bank 0\r
- //\r
- OutputData = (UINT8) ((~DLAB << 7) | (gBreakSet << 6) | (gParity << 3) | (gStop << 2) | Data);\r
- IoWrite8 ((UINTN) (gUartBase + LCR_OFFSET), OutputData);\r
-\r
- return RETURN_SUCCESS;\r
-}\r
-\r
-/**\r
- Write data from buffer to serial device. \r
- \r
- Writes NumberOfBytes data bytes from Buffer to the serial device. \r
- The number of bytes actually written to the serial device is returned.\r
- If the return value is less than NumberOfBytes, then the write operation failed.\r
-\r
- If Buffer is NULL, then ASSERT(). \r
-\r
- If NumberOfBytes is zero, then return 0.\r
-\r
- @param Buffer Pointer to the data buffer to be written.\r
- @param NumberOfBytes Number of bytes to written to the serial device.\r
-\r
- @retval 0 NumberOfBytes is 0.\r
- @retval >0 The number of bytes written to the serial device. \r
- If this value is less than NumberOfBytes, then the read operation failed.\r
-\r
-**/\r
-UINTN\r
-EFIAPI\r
-SerialPortWrite (\r
- IN UINT8 *Buffer,\r
- IN UINTN NumberOfBytes\r
-)\r
-{\r
- UINTN Result;\r
- UINT8 Data;\r
-\r
- if (Buffer == NULL) {\r
- return 0;\r
- }\r
-\r
- Result = NumberOfBytes;\r
-\r
- while (NumberOfBytes--) {\r
- //\r
- // Wait for the serail port to be ready.\r
- //\r
- do {\r
- Data = IoRead8 ((UINT16) gUartBase + LSR_OFFSET);\r
- } while ((Data & LSR_TXRDY) == 0);\r
- IoWrite8 ((UINT16) gUartBase, *Buffer++);\r
- }\r
-\r
- return Result;\r
-}\r
-\r
-\r
-/**\r
- Reads data from a serial device into a buffer.\r
-\r
- @param Buffer Pointer to the data buffer to store the data read from the serial device.\r
- @param NumberOfBytes Number of bytes to read from the serial device.\r
-\r
- @retval 0 NumberOfBytes is 0.\r
- @retval >0 The number of bytes read from the serial device. \r
- If this value is less than NumberOfBytes, then the read operation failed.\r
-\r
-**/\r
-UINTN\r
-EFIAPI\r
-SerialPortRead (\r
- OUT UINT8 *Buffer,\r
- IN UINTN NumberOfBytes\r
-)\r
-{\r
- UINTN Result;\r
- UINT8 Data;\r
-\r
- if (NULL == Buffer) {\r
- return 0;\r
- }\r
-\r
- Result = NumberOfBytes;\r
-\r
- while (NumberOfBytes--) {\r
- //\r
- // Wait for the serail port to be ready.\r
- //\r
- do {\r
- Data = IoRead8 ((UINT16) gUartBase + LSR_OFFSET);\r
- } while ((Data & LSR_RXDA) == 0);\r
-\r
- *Buffer++ = IoRead8 ((UINT16) gUartBase);\r
- }\r
-\r
- return Result;\r
-}\r
-\r
-/**\r
- Polls a serial device to see if there is any data waiting to be read.\r
-\r
- Polls aserial device to see if there is any data waiting to be read.\r
- If there is data waiting to be read from the serial device, then TRUE is returned.\r
- If there is no data waiting to be read from the serial device, then FALSE is returned.\r
-\r
- @retval TRUE Data is waiting to be read from the serial device.\r
- @retval FALSE There is no data waiting to be read from the serial device.\r
-\r
-**/\r
-BOOLEAN\r
-EFIAPI\r
-SerialPortPoll (\r
- VOID\r
- )\r
-{\r
- UINT8 Data;\r
-\r
- //\r
- // Read the serial port status.\r
- //\r
- Data = IoRead8 ((UINT16) gUartBase + LSR_OFFSET);\r
-\r
- return (BOOLEAN) ((Data & LSR_RXDA) != 0);\r
-}\r
-\r
--- /dev/null
+#/**@file\r
+# This library instance produce SerialIo library class for DUET platform.\r
+#\r
+# Copyright (c) 2006 - 2007, Intel Corporation \r
+# All rights reserved. This program and the accompanying materials \r
+# are licensed and made available under the terms and conditions of the BSD License \r
+# which accompanies this distribution. The full text of the license may be found at \r
+# http://opensource.org/licenses/bsd-license.php \r
+# \r
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+# \r
+#\r
+#**/\r
+\r
+[Defines]\r
+ INF_VERSION = 0x00010005\r
+ BASE_NAME = DuetSerialPortLib\r
+ FILE_GUID = 1B25AF84-1EA8-4b52-894E-BFA6880B97FF\r
+ MODULE_TYPE = DXE_DRIVER\r
+ VERSION_STRING = 1.0\r
+ LIBRARY_CLASS = SerialPortLib\r
+ EDK_RELEASE_VERSION = 0x00020000\r
+ EFI_SPECIFICATION_VERSION = 0x0002000A\r
+\r
+[Packages]\r
+ MdePkg/MdePkg.dec\r
+\r
+[LibraryClasses]\r
+ SerialPortLib\r
+ IoLib\r
+\r
+[Sources.common]\r
+ SerialPortLib.c\r
+\r
+\r
--- /dev/null
+/** @file\r
+ UART Serial Port library instance with empty functions.\r
+\r
+ Copyright (c) 2006 - 2008, Intel Corporation\r
+ All rights reserved. This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this distribution. The full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.php\r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include <Base.h>\r
+\r
+#include <Library/SerialPortLib.h>\r
+#include <Library/IoLib.h>\r
+\r
+//---------------------------------------------\r
+// UART Register Offsets\r
+//---------------------------------------------\r
+#define BAUD_LOW_OFFSET 0x00\r
+#define BAUD_HIGH_OFFSET 0x01\r
+#define IER_OFFSET 0x01\r
+#define LCR_SHADOW_OFFSET 0x01\r
+#define FCR_SHADOW_OFFSET 0x02\r
+#define IR_CONTROL_OFFSET 0x02\r
+#define FCR_OFFSET 0x02\r
+#define EIR_OFFSET 0x02\r
+#define BSR_OFFSET 0x03\r
+#define LCR_OFFSET 0x03\r
+#define MCR_OFFSET 0x04\r
+#define LSR_OFFSET 0x05\r
+#define MSR_OFFSET 0x06\r
+\r
+//---------------------------------------------\r
+// UART Register Bit Defines\r
+//---------------------------------------------\r
+#define LSR_TXRDY 0x20\r
+#define LSR_RXDA 0x01\r
+#define DLAB 0x01\r
+\r
+//---------------------------------------------\r
+// UART Settings\r
+//---------------------------------------------\r
+UINT16 gUartBase = 0x3F8;\r
+UINTN gBps = 115200;\r
+UINT8 gData = 8;\r
+UINT8 gStop = 1;\r
+UINT8 gParity = 0;\r
+UINT8 gBreakSet = 0;\r
+\r
+/**\r
+ Initialize the serial device hardware.\r
+ \r
+ If no initialization is required, then return RETURN_SUCCESS.\r
+ If the serial device was successfuly initialized, then return RETURN_SUCCESS.\r
+ If the serial device could not be initialized, then return RETURN_DEVICE_ERROR.\r
+ \r
+ @retval RETURN_SUCCESS The serial device was initialized.\r
+ @retval RETURN_DEVICE_ERROR The serail device could not be initialized.\r
+\r
+**/\r
+RETURN_STATUS\r
+EFIAPI\r
+SerialPortInitialize (\r
+ VOID\r
+ )\r
+{\r
+ UINTN Divisor;\r
+ UINT8 OutputData;\r
+ UINT8 Data;\r
+\r
+ //\r
+ // Map 5..8 to 0..3\r
+ //\r
+ Data = (UINT8) (gData - (UINT8) 5);\r
+\r
+ //\r
+ // Calculate divisor for baud generator\r
+ //\r
+ Divisor = 115200 / gBps;\r
+ \r
+ //\r
+ // Set communications format\r
+ //\r
+ OutputData = (UINT8) ((DLAB << 7) | (gBreakSet << 6) | (gParity << 3) | (gStop << 2) | Data);\r
+ IoWrite8 ((UINTN) (gUartBase + LCR_OFFSET), OutputData);\r
+\r
+ //\r
+ // Configure baud rate\r
+ //\r
+ IoWrite8 ((UINTN) (gUartBase + BAUD_HIGH_OFFSET), (UINT8) (Divisor >> 8));\r
+ IoWrite8 ((UINTN) (gUartBase + BAUD_LOW_OFFSET), (UINT8) (Divisor & 0xff));\r
+\r
+ //\r
+ // Switch back to bank 0\r
+ //\r
+ OutputData = (UINT8) ((~DLAB << 7) | (gBreakSet << 6) | (gParity << 3) | (gStop << 2) | Data);\r
+ IoWrite8 ((UINTN) (gUartBase + LCR_OFFSET), OutputData);\r
+\r
+ return RETURN_SUCCESS;\r
+}\r
+\r
+/**\r
+ Write data from buffer to serial device. \r
+ \r
+ Writes NumberOfBytes data bytes from Buffer to the serial device. \r
+ The number of bytes actually written to the serial device is returned.\r
+ If the return value is less than NumberOfBytes, then the write operation failed.\r
+\r
+ If Buffer is NULL, then ASSERT(). \r
+\r
+ If NumberOfBytes is zero, then return 0.\r
+\r
+ @param Buffer Pointer to the data buffer to be written.\r
+ @param NumberOfBytes Number of bytes to written to the serial device.\r
+\r
+ @retval 0 NumberOfBytes is 0.\r
+ @retval >0 The number of bytes written to the serial device. \r
+ If this value is less than NumberOfBytes, then the read operation failed.\r
+\r
+**/\r
+UINTN\r
+EFIAPI\r
+SerialPortWrite (\r
+ IN UINT8 *Buffer,\r
+ IN UINTN NumberOfBytes\r
+)\r
+{\r
+ UINTN Result;\r
+ UINT8 Data;\r
+\r
+ if (Buffer == NULL) {\r
+ return 0;\r
+ }\r
+\r
+ Result = NumberOfBytes;\r
+\r
+ while (NumberOfBytes--) {\r
+ //\r
+ // Wait for the serail port to be ready.\r
+ //\r
+ do {\r
+ Data = IoRead8 ((UINT16) gUartBase + LSR_OFFSET);\r
+ } while ((Data & LSR_TXRDY) == 0);\r
+ IoWrite8 ((UINT16) gUartBase, *Buffer++);\r
+ }\r
+\r
+ return Result;\r
+}\r
+\r
+\r
+/**\r
+ Reads data from a serial device into a buffer.\r
+\r
+ @param Buffer Pointer to the data buffer to store the data read from the serial device.\r
+ @param NumberOfBytes Number of bytes to read from the serial device.\r
+\r
+ @retval 0 NumberOfBytes is 0.\r
+ @retval >0 The number of bytes read from the serial device. \r
+ If this value is less than NumberOfBytes, then the read operation failed.\r
+\r
+**/\r
+UINTN\r
+EFIAPI\r
+SerialPortRead (\r
+ OUT UINT8 *Buffer,\r
+ IN UINTN NumberOfBytes\r
+)\r
+{\r
+ UINTN Result;\r
+ UINT8 Data;\r
+\r
+ if (NULL == Buffer) {\r
+ return 0;\r
+ }\r
+\r
+ Result = NumberOfBytes;\r
+\r
+ while (NumberOfBytes--) {\r
+ //\r
+ // Wait for the serail port to be ready.\r
+ //\r
+ do {\r
+ Data = IoRead8 ((UINT16) gUartBase + LSR_OFFSET);\r
+ } while ((Data & LSR_RXDA) == 0);\r
+\r
+ *Buffer++ = IoRead8 ((UINT16) gUartBase);\r
+ }\r
+\r
+ return Result;\r
+}\r
+\r
+/**\r
+ Polls a serial device to see if there is any data waiting to be read.\r
+\r
+ Polls aserial device to see if there is any data waiting to be read.\r
+ If there is data waiting to be read from the serial device, then TRUE is returned.\r
+ If there is no data waiting to be read from the serial device, then FALSE is returned.\r
+\r
+ @retval TRUE Data is waiting to be read from the serial device.\r
+ @retval FALSE There is no data waiting to be read from the serial device.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+SerialPortPoll (\r
+ VOID\r
+ )\r
+{\r
+ UINT8 Data;\r
+\r
+ //\r
+ // Read the serial port status.\r
+ //\r
+ Data = IoRead8 ((UINT16) gUartBase + LSR_OFFSET);\r
+\r
+ return (BOOLEAN) ((Data & LSR_RXDA) != 0);\r
+}\r
+\r
projects / mirror_edk2.git / commitdiff