+++ /dev/null
-/** @file\r
- "Terminal" Control functions for Interactive IO.\r
-\r
- Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>\r
- This program and the accompanying materials are licensed and made available under\r
- the terms and conditions of the BSD License that accompanies this distribution.\r
- The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.\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
-#include <Uefi.h>\r
-#include <Library/BaseMemoryLib.h>\r
-\r
-#include <LibConfig.h>\r
-\r
-#include <errno.h>\r
-#include <sys/termios.h>\r
-#include <Device/IIO.h>\r
-#include <MainData.h>\r
-\r
-/** Get input baud rate.\r
-\r
- Extracts the input baud rate from the termios structure pointed to by the\r
- pTermios argument.\r
-\r
- @param[in] pTermios A pointer to the termios structure from which to extract\r
- the input baud rate.\r
-\r
- @return The value of the input speed is returned exactly as it is contained\r
- in the termios structure, without interpretation.\r
-**/\r
-speed_t\r
-cfgetispeed (\r
- const struct termios *pTermios\r
- )\r
-{\r
- return pTermios->c_ispeed;\r
-}\r
-\r
-/** Get output baud rate.\r
-\r
- Extracts the output baud rate from the termios structure pointed to by the\r
- pTermios argument.\r
-\r
- @param[in] pTermios A pointer to the termios structure from which to extract\r
- the output baud rate.\r
-\r
- @return The value of the output speed is returned exactly as it is contained\r
- in the termios structure, without interpretation.\r
-**/\r
-speed_t\r
-cfgetospeed (\r
- const struct termios *pTermios\r
- )\r
-{\r
- return pTermios->c_ospeed;\r
-}\r
-\r
-/** Set input baud rate.\r
-\r
- Replaces the input baud rate, in the termios structure pointed to by the\r
- pTermios argument, with the value of NewSpeed.\r
-\r
- @param[out] pTermios A pointer to the termios structure into which to set\r
- the input baud rate.\r
- @param[in] NewSpeed The new input baud rate.\r
-\r
- @retval 0 The operation completed successfully.\r
- @retval -1 An error occured and errno is set to indicate the error.\r
- * EINVAL - The value of NewSpeed is outside the range of\r
- possible speed values as specified in <sys/termios.h>.\r
-**/\r
-int\r
-cfsetispeed (\r
- struct termios *pTermios,\r
- speed_t NewSpeed\r
- )\r
-{\r
- int RetVal;\r
-\r
- if(NewSpeed < B921600) {\r
- pTermios->c_ispeed = NewSpeed;\r
- RetVal = 0;\r
- }\r
- else {\r
- RetVal = -1;\r
- errno = EINVAL;\r
- }\r
- return RetVal;\r
-}\r
-\r
-/** Set output baud rate.\r
-\r
- Replaces the output baud rate, in the termios structure pointed to by the\r
- pTermios argument, with the value of NewSpeed.\r
-\r
- @param[out] pTermios A pointer to the termios structure into which to set\r
- the output baud rate.\r
- @param[in] NewSpeed The new output baud rate.\r
-\r
- @retval 0 The operation completed successfully.\r
- @retval -1 An error occured and errno is set to indicate the error.\r
- * EINVAL - The value of NewSpeed is outside the range of\r
- possible speed values as specified in <sys/termios.h>.\r
-**/\r
-int\r
-cfsetospeed (\r
- struct termios *pTermios,\r
- speed_t NewSpeed\r
- )\r
-{\r
- int RetVal;\r
-\r
- if(NewSpeed < B921600) {\r
- pTermios->c_ospeed = NewSpeed;\r
- RetVal = 0;\r
- }\r
- else {\r
- RetVal = -1;\r
- errno = EINVAL;\r
- }\r
- return RetVal;\r
-}\r
-\r
-/** Get the parameters associated with an interactive IO device.\r
-\r
- Get the parameters associated with the device referred to by\r
- fd and store them into the termios structure referenced by pTermios.\r
-\r
- @param[in] fd The file descriptor for an open interactive IO device.\r
- @param[out] pTermios A pointer to a termios structure into which to store\r
- attributes of the interactive IO device.\r
-\r
- @retval 0 The operation completed successfully.\r
- @retval -1 An error occured and errno is set to indicate the error.\r
- * EBADF - The fd argument is not a valid file descriptor.\r
- * ENOTTY - The file associated with fd is not an interactive IO device.\r
-**/\r
-int\r
-tcgetattr (\r
- int fd,\r
- struct termios *pTermios\r
- )\r
-{\r
- cIIO *IIO;\r
- int RetVal;\r
- struct __filedes *filp;\r
- struct termios *Termio;\r
-\r
- RetVal = 0;\r
- if(ValidateFD( fd, VALID_OPEN)) {\r
- filp = &gMD->fdarray[fd];\r
-\r
- if((filp->f_iflags & _S_ITTY) != 0) {\r
- // fd is for a TTY or "Interactive IO" device\r
- IIO = (cIIO *)filp->devdata;\r
- Termio = &IIO->Termio;\r
- (void)CopyMem((void *)pTermios, (const void *)Termio, sizeof(struct termios));\r
- }\r
- else {\r
- errno = ENOTTY;\r
- RetVal = -1;\r
- }\r
- }\r
- else {\r
- errno = EBADF;\r
- RetVal = -1;\r
- }\r
- return RetVal;\r
-}\r
-\r
-/** Set the parameters associated with an interactive IO device.\r
-\r
- Set the parameters associated with the device referred to by\r
- fd to the values in the termios structure referenced by pTermios.\r
-\r
- Behavior is modified by the value of the OptAct parameter:\r
- * TCSANOW: The change shall occur immediately.\r
- * TCSADRAIN: The change shall occur after all output written to fd is\r
- transmitted. This action should be used when changing parameters which\r
- affect output.\r
- * TCSAFLUSH: The change shall occur after all output written to fd is\r
- transmitted, and all input so far received but not read shall be\r
- discarded before the change is made.\r
-\r
- @param[in] fd The file descriptor for an open interactive IO device.\r
- @param[in] OptAct Currently has no effect.\r
- @param[in] pTermios A pointer to a termios structure into which to retrieve\r
- attributes to set in the interactive IO device.\r
-\r
- @retval 0 The operation completed successfully.\r
- @retval -1 An error occured and errno is set to indicate the error.\r
- * EBADF - The fd argument is not a valid file descriptor.\r
- * ENOTTY - The file associated with fd is not an interactive IO device.\r
-**/\r
-int\r
-tcsetattr (\r
- int fd,\r
- int OptAct, // Currently ignored\r
- const struct termios *pTermios\r
- )\r
-{\r
- cIIO *IIO;\r
- int RetVal;\r
- struct __filedes *filp;\r
- struct termios *Termio;\r
-\r
- RetVal = 0;\r
- if(ValidateFD( fd, VALID_OPEN)) {\r
- filp = &gMD->fdarray[fd];\r
-\r
- if((filp->f_iflags & _S_ITTY) != 0) {\r
- // fd is for a TTY or "Interactive IO" device\r
- IIO = (cIIO *)filp->devdata;\r
- Termio = &IIO->Termio;\r
- (void)CopyMem((void *)Termio, (const void *)pTermios, sizeof(struct termios));\r
- }\r
- else {\r
- errno = ENOTTY;\r
- RetVal = -1;\r
- }\r
- }\r
- else {\r
- errno = EBADF;\r
- RetVal = -1;\r
- }\r
- return RetVal;\r
-}\r
-\r
-/** Transmit pending output.\r
-\r
- Function is not yet implemented for UEFI.\r
-\r
- @param[in] fd Ignored\r
-\r
- @retval -1 This function is not yet supported. errno is set to ENOTSUP.\r
-**/\r
-int\r
-tcdrain (int fd)\r
-{\r
- errno = ENOTSUP;\r
- return -1;\r
-}\r
-\r
-/** Suspend or restart the transmission or reception of data.\r
-\r
- This function will suspend or resume transmission or reception of data on\r
- the file referred to by fd, depending on the value of Action.\r
-\r
- Function is not yet implemented for UEFI.\r
-\r
- @param[in] fd Ignored\r
- @param[in] Action Ignored\r
-\r
- @retval -1 This function is not yet supported. errno is set to ENOTSUP.\r
-**/\r
-int\r
-tcflow (\r
- int fd,\r
- int Action)\r
-{\r
- errno = ENOTSUP;\r
- return -1;\r
-}\r
-\r
-/** Discard non-transmitted output data, non-read input data, or both.\r
-\r
- Function is not yet implemented for UEFI.\r
-\r
- @param[in] fd Ignored\r
- @param[in] QueueSelector Ignored\r
-\r
- @retval -1 This function is not yet supported. errno is set to ENOTSUP.\r
-**/\r
-int\r
-tcflush (\r
- int fd,\r
- int QueueSelector)\r
-{\r
- errno = ENOTSUP;\r
- return -1;\r
-}\r
-\r
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