Loosen up termios interfaces to allow more flexible baud settings; remove AIX-like interfaces of last check-in
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4969 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
parent
6e28bc9669
commit
369ef8947f
@ -3039,5 +3039,12 @@
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Add APIs to support setting non-standard BAUD values not supported by POSIX
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termios. These are non-standard interfaces but have a precedence: There are
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similar interfaces in AIX.
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* include/sys/str_tty.h, lib/lib_setspeed.c, lib_getspeed.c, and lib_resetspeed.c:
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Sigh... removed. We don't need any more almost standard interfaces.
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* include/termios.h and lib/termios/*: Open the existing, standard termios
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interfaces to permit some non-standard baud settings. The new termios definitions
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still supports the POSIX standard except that it does not strictly enforce
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baud rate settings, permitting some non-portable, but useful baud rate settings
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(this is what the short-lived AIX-like interfaces would have accomplished as well).
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@ -776,6 +776,10 @@ CONFIG_FTPD_CMDBUFFERSIZE=2048
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# CONFIG_MB_ASCII_ENABLED - Modbus ASCII support
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# CONFIG_MB_RTU_ENABLED - Modbus RTU support
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# CONFIG_MB_TCP_ENABLED - Modbus TCP support
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# CONFIG_MB_TERMIOS - Serial driver supports termios.h interfaces (tcsetattr,
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# tcflush, etc.). If this is not defined, then the terminal settings (baud,
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# parity, etc.) are not configurable at runtime; serial streams will not be
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# flushed when closed.
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# CONFIG_MB_ASCII_TIMEOUT_SEC - Character timeout value for Modbus ASCII. The
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# character timeout value is not fixed for Modbus ASCII and is therefore
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# a configuration option. It should be set to the maximum expected delay
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@ -822,6 +826,7 @@ CONFIG_MODBUS=n
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CONFIG_MB_ASCII_ENABLED=y
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CONFIG_MB_RTU_ENABLED=y
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CONFIG_MB_TCP_ENABLED=n
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CONFIG_MB_TERMIOS=n
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CONFIG_MB_ASCII_TIMEOUT_SEC=1
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CONFIG_MB_ASCII_TIMEOUT_WAIT_BEFORE_SEND_MS=0
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CONFIG_MB_FUNC_HANDLERS_MAX=16
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@ -1089,6 +1094,21 @@ CONFIG_EXAMPLE_IRQBUTTONS_MIN=0
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CONFIG_EXAMPLE_IRQBUTTONS_MAX=0
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CONFIG_EXAMPLE_BUTTONS_NAME1="SW2"
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#
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# examples/modbus
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#
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# CONFIG_EXAMPLES_MODBUS_PORT, Default 0 (for /dev/ttyS0)
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# CONFIG_EXAMPLES_MODBUS_BAUD, Default 38400
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# CONFIG_EXAMPLES_MODBUS_PARITY, Default MB_PAR_EVEN
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#
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# CONFIG_EXAMPLES_MODBUS_REG_INPUT_START, Default 1000
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# CONFIG_EXAMPLES_MODBUS_REG_INPUT_NREGS, Default 4
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# CONFIG_EXAMPLES_MODBUS_REG_HOLDING_START, Default 2000
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# CONFIG_EXAMPLES_MODBUS_REG_HOLDING_NREGS, Default 130
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#
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CONFIG_EXAMPLES_MODBUS_PORT=1
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CONFIG_EXAMPLES_MODBUS_BAUD=9600
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#
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# Settings for examples/usbserial
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#
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@ -65,60 +65,54 @@
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#define TIOCGLCKTRMIOS _TIOC(0x0009) /* Get termios lock status: FAR struct termios* */
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#define TIOCSLCKTRMIOS _TIOC(0x000a) /* Set termios lock status: FAR const struct termios* */
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/* Support for AIX-style get_speed, set_speed, and reset_speed operations (see sys/str_tty.h) */
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#define TIOCSETSPEED _TIOC(0x000b) /* Set speed, enter extended speed mode: int32_t */
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#define TIOCGETSPEED _TIOC(0x000c) /* Get speed: int32_t* */
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#define TIOCRESETSPEED _TIOC(0x000d) /* Exit extended speed mode: None */
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/* Get and Set Window Size */
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#define TIOCGWINSZ _TIOC(0x000e) /* Get window size: FAR struct winsize */
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#define TIOCSWINSZ _TIOC(0x000f) /* Set window size: FAR const struct winsize */
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#define TIOCGWINSZ _TIOC(0x000b) /* Get window size: FAR struct winsize */
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#define TIOCSWINSZ _TIOC(0x000c) /* Set window size: FAR const struct winsize */
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/* Send a break */
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#define TCSBRK _TIOC(0x0010) /* Send a break: int */
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#define TCSBRKP _TIOC(0x0011) /* Send a POSIX break: int */
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#define TIOCSBRK _TIOC(0x0012) /* Turn break on: void */
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#define TIOCCBRK _TIOC(0x0013) /* Turn break off: void */
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#define TCSBRK _TIOC(0x000d) /* Send a break: int */
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#define TCSBRKP _TIOC(0x000e) /* Send a POSIX break: int */
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#define TIOCSBRK _TIOC(0x000f) /* Turn break on: void */
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#define TIOCCBRK _TIOC(0x0010) /* Turn break off: void */
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/* Software flow control */
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#define TCXONC _TIOC(0x0014) /* Control flow control: int */
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#define TCXONC _TIOC(0x0011) /* Control flow control: int */
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/* Buffer count and flushing */
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#define TIOCINQ _TIOC(0x0015) /* Bytes in input buffer: int */
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#define TIOCOUTQ _TIOC(0x0016) /* Bytes in output buffer: int */
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#define TCFLSH _TIOC(0x0017) /* Flush: int */
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#define TIOCINQ _TIOC(0x0012) /* Bytes in input buffer: int */
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#define TIOCOUTQ _TIOC(0x0013) /* Bytes in output buffer: int */
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#define TCFLSH _TIOC(0x0014) /* Flush: int */
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/* Faking input */
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#define TIOCSTI _TIOC(0x0018) /* Insert into input: const char */
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#define TIOCSTI _TIOC(0x0015) /* Insert into input: const char */
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/* Re-directing console output */
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#define TIOCCONS _TIOC(0x0019) /* Re-direct console output to device: void */
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#define TIOCCONS _TIOC(0x0016) /* Re-direct console output to device: void */
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/* Controlling TTY */
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#define TIOCSCTTY _TIOC(0x001a) /* Make controlling TTY: int */
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#define TIOCNOTTY _TIOC(0x001b) /* Give up controllinog TTY: void */
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#define TIOCSCTTY _TIOC(0x0017) /* Make controlling TTY: int */
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#define TIOCNOTTY _TIOC(0x0018) /* Give up controllinog TTY: void */
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/* Exclusive mode */
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#define TIOCEXCL _TIOC(0x001c) /* Put TTY in exclusive mode: void */
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#define TIOCNXCL _TIOC(0x001d) /* Disable exclusive mode: void */
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#define TIOCEXCL _TIOC(0x0019) /* Put TTY in exclusive mode: void */
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#define TIOCNXCL _TIOC(0x001a) /* Disable exclusive mode: void */
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/* Line discipline */
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#define TIOCGETD _TIOC(0x001e) /* Get line discipline: FAR int */
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#define TIOCSETD _TIOC(0x001f) /* Set line discipline: FAR const int */
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#define TIOCGETD _TIOC(0x001b) /* Get line discipline: FAR int */
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#define TIOCSETD _TIOC(0x001c) /* Set line discipline: FAR const int */
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/* Packet mode */
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#define TIOCPKT _TIOC(0x0020) /* Control packet mode: FAR const int */
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#define TIOCPKT _TIOC(0x001d) /* Control packet mode: FAR const int */
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# define TIOCPKT_FLUSHREAD (1 << 0) /* The read queue for the terminal is flushed */
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# define TIOCPKT_FLUSHWRITE (1 << 1) /* The write queue for the terminal is flushed */
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@ -129,10 +123,10 @@
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/* Modem control */
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#define TIOCMGET _TIOC(0x0021) /* Get modem status bits: FAR int */
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#define TIOCMSET _TIOC(0x0022) /* Set modem status bits: FAR const int */
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#define TIOCMBIC _TIOC(0x0023) /* Clear modem bits: FAR const int */
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#define TIOCMBIS _TIOC(0x0024) /* Set modem bits: FAR const int */
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#define TIOCMGET _TIOC(0x001e) /* Get modem status bits: FAR int */
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#define TIOCMSET _TIOC(0x001f) /* Set modem status bits: FAR const int */
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#define TIOCMBIC _TIOC(0x0020) /* Clear modem bits: FAR const int */
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#define TIOCMBIS _TIOC(0x0021) /* Set modem bits: FAR const int */
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# define TIOCM_LE (1 << 0) /* DSR (data set ready/line enable) */
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# define TIOCM_DTR (1 << 1) /* DTR (data terminal ready) */
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@ -148,32 +142,32 @@
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/* TTY shutdown */
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#define TIOCVHANGUP _TIOC(0x0025) /* Shutdown TTY: void */
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#define TIOCVHANGUP _TIOC(0x0022) /* Shutdown TTY: void */
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/* Marking a line as local */
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#define TIOCGSOFTCAR _TIOC(0x0026) /* Get software carrier flag: FAR int */
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#define TIOCSSOFTCAR _TIOC(0x0027) /* Set software carrier flag: FAR const int */
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#define TIOCGSOFTCAR _TIOC(0x0023) /* Get software carrier flag: FAR int */
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#define TIOCSSOFTCAR _TIOC(0x0024) /* Set software carrier flag: FAR const int */
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/* Get/set serial line info */
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#define TIOCGSERIAL _TIOC(0x0028) /* Get serial line info: FAR struct serial_struct */
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#define TIOCSSERIAL _TIOC(0x0029) /* Set serial line info: FAR const struct serial_struct */
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#define TIOCSERGETLSR _TIOC(0x002a) /* Get line status register: FAR int */
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#define TIOCGSERIAL _TIOC(0x0025) /* Get serial line info: FAR struct serial_struct */
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#define TIOCSSERIAL _TIOC(0x0026) /* Set serial line info: FAR const struct serial_struct */
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#define TIOCSERGETLSR _TIOC(0x0027) /* Get line status register: FAR int */
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/* Serial events */
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#define TIOCMIWAIT _TIOC(0x002b) /* Wait for a change on serial input line(s): void */
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#define TIOCGICOUNT _TIOC(0x002c) /* Read serial port interrupt count: FAR struct serial_icounter_struct */
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#define TIOCMIWAIT _TIOC(0x0028) /* Wait for a change on serial input line(s): void */
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#define TIOCGICOUNT _TIOC(0x0029) /* Read serial port interrupt count: FAR struct serial_icounter_struct */
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/* RS-485 Support */
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#define TIOCSRS485 _TIOC(0x002d) /* Set RS485 mode, arg: pointer to struct serial_rs485 */
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#define TIOCGRS485 _TIOC(0x002e) /* Get RS485 mode, arg: pointer to struct serial_rs485 */
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#define TIOCSRS485 _TIOC(0x002a) /* Set RS485 mode, arg: pointer to struct serial_rs485 */
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#define TIOCGRS485 _TIOC(0x002b) /* Get RS485 mode, arg: pointer to struct serial_rs485 */
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/* Debugging */
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#define TIOCSERGSTRUCT _TIOC(0x002f) /* Get device TTY structure */
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#define TIOCSERGSTRUCT _TIOC(0x002c) /* Get device TTY structure */
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/* Definitions used in struct serial_rs485 (Linux compatible) */
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@ -1,100 +0,0 @@
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/****************************************************************************
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* include/sys/str_tty.h
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_SYS_STR_TTY_H
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#define __INCLUDE_SYS_STR_TTY_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdint.h>
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Type Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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/* These are non-standard AIX-like interfaces to simplify TTY baud rate
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* operations.
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*
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* The baud rate functions set_speed() and get_speed() are provided to
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* allow the applications to program any value of the baud rate that is
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* supported by the serial driver, but that cannot be expressed using
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* the termios subroutines cfsetospeed, cfsetispeed, cfgetospeed,
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* and cfsgetispeed. Those subroutines are limited to the set of values
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* defined termios.h.
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*
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* Normal mode: This is the default mode, in which a termios supported
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* speed is in use.
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*
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* Speed-extended mode: This mode is entered by calling set_speed() with
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* a non-termios supported speed at the configuration of the line. In this
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* mode, all the calls to tcgetattr subroutine or TCGETS ioctl subroutine
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* will have B50 in the returned termios structure.
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*
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* If tcsetattr() or TCSETS, TCSETAF, or TCSETAW ioctl calls the driver
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* and attempts to set B50, the actual baud rate is not changed. If it
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* attempts to set any other termios-supported speed, will switch back
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* to the normal mode and the requested baud rate is set. Calling
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* reset_speed subroutine is another way to switch back to the
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* normal mode.
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*/
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EXTERN int32_t get_speed(int fd);
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EXTERN int set_speed(int fd, int32_t speed);
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EXTERN int reset_speed(int fd);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __INCLUDE_SYS_STR_TTY_H */
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@ -110,10 +110,6 @@
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#define HUPCL (1 << 6) /* Hang up on last close */
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#define CLOCAL (1 << 7) /* Ignore modem status lines */
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#define CBAUD (0x1f << 8) /* Baud mask (not POSIX) */
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#define CBAUDEX (0x10 << 8) /* Extra speed mask (not POSIX) */
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#define _CBAUD_SHIFT 8 /* So that we all agree where the baud code is stored */
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/* Local Modes (c_lflag in the termios structure) */
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#define ECHO (1 << 0) /* Enable echo */
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@ -142,29 +138,43 @@
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#define VSUSP 8 /* SUSP character */
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#define NCCS 9 /* Size of the array c_cc for control characters */
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/* Baud Rate Selection (objects of type speed_t) */
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/* Baud Rate Selection (objects of type speed_t). NOTE that as a simplification
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* in NuttX, the value of the baud symbol is the buad rate itself; not an encoded
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* value as you will see in most implementations of termios.h.
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*/
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#define B0 0 /* Hang up */
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#define B50 1 /* 50 baud */
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#define B75 2 /* 75 baud */
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#define B110 3 /* 110 baud */
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#define B134 4 /* 134.5 baud */
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#define B150 5 /* 150 baud */
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#define B200 6 /* 200 baud */
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#define B300 7 /* 300 baud */
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#define B600 8 /* 600 baud */
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#define B1200 9 /* 1,200 baud */
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#define B1800 10 /* 1,800 baud */
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#define B2400 11 /* 2,400 baud */
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#define B4800 12 /* 4,800 baud */
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#define B9600 13 /* 9,600 baud */
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#define B19200 14 /* 19,200 baud */
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#define B38400 15 /* 38,400 baud */
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#define B57600 16 /* 57,600 baud */
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#define B115200 17 /* 115,200 baud */
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#define B230400 18 /* 230,400 baud */
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#define B460800 19 /* 460,800 baud */
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#define B921600 20 /* 921,600 baud */
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#define B50 50 /* 50 baud */
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#define B75 75 /* 75 baud */
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#define B110 110 /* 110 baud */
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#define B134 134 /* 134.5 baud */
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#define B150 150 /* 150 baud */
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#define B200 200 /* 200 baud */
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#define B300 300 /* 300 baud */
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#define B600 600 /* 600 baud */
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#define B1200 1200 /* 1,200 baud */
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#define B1800 1800 /* 1,800 baud */
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#define B2400 2400 /* 2,400 baud */
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#define B4800 4800 /* 4,800 baud */
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#define B9600 9600 /* 9,600 baud */
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#define B19200 19200 /* 19,200 baud */
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#define B38400 38400 /* 38,400 baud */
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#define B57600 57600 /* 57,600 baud */
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#define B115200 115200 /* 115,200 baud */
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#define B128000 128000 /* 128,000 baud */
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#define B230400 230400 /* 230,400 baud */
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#define B256000 256000 /* 256,000 baud */
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#define B460800 460800 /* 460,800 baud */
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#define B500000 500000 /* 500,000 baud */
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#define B576000 576000 /* 576,000 baud */
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#define B921600 921600 /* 921,600 baud */
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#define B1000000 1000000 /* 1,000,000 baud */
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#define B1152000 1152000 /* 1,152,000 baud */
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#define B1500000 1500000 /* 1,500,000 baud */
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#define B2000000 2000000 /* 2,000,000 baud */
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#define B2500000 2500000 /* 2,500,000 baud */
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#define B3000000 3000000 /* 3,000,000 baud */
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/* Attribute Selection (used with tcsetattr()) */
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@ -191,7 +201,7 @@
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/* Baud rate selection */
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typedef uint8_t speed_t; /* Used for terminal baud rates */
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typedef uint32_t speed_t; /* Used for terminal baud rates */
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/* Types used within the termios structure */
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@ -202,11 +212,21 @@ typedef int cc_t; /* Used for terminal special characters */
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struct termios
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{
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/* Exposed fields defined by POSIX */
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tcflag_t c_iflag; /* Input modes */
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tcflag_t c_oflag; /* Output modes */
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tcflag_t c_cflag; /* Control modes */
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tcflag_t c_lflag; /* Local modes */
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||||
cc_t c_cc[NCCS]; /* Control chars */
|
||||
|
||||
/* Implementation specific fields. For portability reasons, these fields
|
||||
* should not be accessed directly, but rather through only through the
|
||||
* cf[set|get][o|i]speed() POSIX interfaces.
|
||||
*/
|
||||
|
||||
speed_t c_ispeed; /* Input speed */
|
||||
speed_t c_ospeed; /* Output speed */
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
|
||||
@ -37,14 +37,8 @@ TERMIOS_SRCS =
|
||||
|
||||
ifneq ($(CONFIG_NFILE_DESCRIPTORS),0)
|
||||
|
||||
# POSIX standard interfaces
|
||||
|
||||
TERMIOS_SRCS += lib_cfgetispeed.c lib_cfgetospeed.c lib_cfsetispeed.c
|
||||
TERMIOS_SRCS += lib_cfsetospeed.c lib_tcflush.c lib_tcgetattr.c
|
||||
TERMIOS_SRCS += lib_tcsetattr.c
|
||||
|
||||
# Non-standard AIX-like interfaces
|
||||
|
||||
TERMIOS_SRCS += lib_getspeed.c lib_resetspeed.c lib_setspeed.c
|
||||
|
||||
endif
|
||||
|
||||
@ -70,8 +70,13 @@
|
||||
* This function shall return exactly the value in the termios data
|
||||
* structure, without interpretation.
|
||||
*
|
||||
* NOTE: NuttX does not no control input/output baud rates independently
|
||||
* This function is *identical* to cfgetospeed
|
||||
* NON STANDARD BEHAVIOR. In Nuttx, the speed_t is defined to be uint32_t
|
||||
* and the baud encodings of termios.h are the actual baud values
|
||||
* themselves. Therefore, any baud value can be provided as the speed
|
||||
* argument here. However, if you do so, your code will *NOT* be portable
|
||||
* to other environments where speed_t is smaller and where the termios.h
|
||||
* baud values are encoded! To avoid portability issues, use the baud
|
||||
* definitions in termios.h!
|
||||
*
|
||||
* Input Parameters:
|
||||
* termiosp - The termiosp argument is a pointer to a termios structure.
|
||||
@ -84,5 +89,5 @@
|
||||
speed_t cfgetispeed(const struct termios *termios_p)
|
||||
{
|
||||
DEBUGASSERT(termios_p);
|
||||
return (speed_t)((termios_p->c_cflag & CBAUD) >> _CBAUD_SHIFT);
|
||||
return termios_p->c_ispeed;
|
||||
}
|
||||
|
||||
@ -70,8 +70,13 @@
|
||||
* This function shall return exactly the value in the termios data
|
||||
* structure, without interpretation.
|
||||
*
|
||||
* NOTE: NuttX does not no control input/output baud rates independently
|
||||
* This function is *identical* to cfgetispeed
|
||||
* NON STANDARD BEHAVIOR. In Nuttx, the speed_t is defined to be uint32_t
|
||||
* and the baud encodings of termios.h are the actual baud values
|
||||
* themselves. Therefore, any baud value can be provided as the speed
|
||||
* argument here. However, if you do so, your code will *NOT* be portable
|
||||
* to other environments where speed_t is smaller and where the termios.h
|
||||
* baud values are encoded! To avoid portability issues, use the baud
|
||||
* definitions in termios.h!
|
||||
*
|
||||
* Input Parameters:
|
||||
* termiosp - The termiosp argument is a pointer to a termios structure.
|
||||
@ -84,5 +89,5 @@
|
||||
speed_t cfgetospeed(const struct termios *termios_p)
|
||||
{
|
||||
DEBUGASSERT(termios_p);
|
||||
return (speed_t)((termios_p->c_cflag & CBAUD) >> _CBAUD_SHIFT);
|
||||
return termios_p->c_ospeed;
|
||||
}
|
||||
|
||||
@ -71,8 +71,13 @@
|
||||
* There is no effect on the baud rates set in the hardware until a
|
||||
* subsequent successful call to tcsetattr() on the same termios structure.
|
||||
*
|
||||
* NOTE: NuttX does not no control input/output baud rates independently
|
||||
* This function is *identical* to cfsetospeed
|
||||
* NON STANDARD BEHAVIOR. In Nuttx, the speed_t is defined to be uint32_t
|
||||
* and the baud encodings of termios.h are the actual baud values
|
||||
* themselves. Therefore, any baud value can be provided as the speed
|
||||
* argument here. However, if you do so, your code will *NOT* be portable
|
||||
* to other environments where speed_t is smaller and where the termios.h
|
||||
* baud values are encoded! To avoid portability issues, use the baud
|
||||
* definitions in termios.h!
|
||||
*
|
||||
* Input Parameters:
|
||||
* termiosp - The termiosp argument is a pointer to a termios structure.
|
||||
@ -86,8 +91,6 @@
|
||||
int cfsetispeed(struct termios *termios_p, speed_t speed)
|
||||
{
|
||||
DEBUGASSERT(termios_p);
|
||||
|
||||
termios_p->c_cflag &= ~CBAUD;
|
||||
termios_p->c_cflag |= ((tcflag_t)speed << _CBAUD_SHIFT);
|
||||
termios_p->c_ispeed = speed;
|
||||
return OK;
|
||||
}
|
||||
|
||||
@ -71,8 +71,13 @@
|
||||
* There is no effect on the baud rates set in the hardware until a
|
||||
* subsequent successful call to tcsetattr() on the same termios structure.
|
||||
*
|
||||
* NOTE: NuttX does not no control input/output baud rates independently
|
||||
* This function is *identical* to cfsetispeed
|
||||
* NON STANDARD BEHAVIOR. In Nuttx, the speed_t is defined to be uint32_t
|
||||
* and the baud encodings of termios.h are the actual baud values
|
||||
* themselves. Therefore, any baud value can be provided as the speed
|
||||
* argument here. However, if you do so, your code will *NOT* be portable
|
||||
* to other environments where speed_t is smaller and where the termios.h
|
||||
* baud values are encoded! To avoid portability issues, use the baud
|
||||
* definitions in termios.h!
|
||||
*
|
||||
* Input Parameters:
|
||||
* termiosp - The termiosp argument is a pointer to a termios structure.
|
||||
@ -86,8 +91,6 @@
|
||||
int cfsetospeed(struct termios *termios_p, speed_t speed)
|
||||
{
|
||||
DEBUGASSERT(termios_p);
|
||||
|
||||
termios_p->c_cflag &= ~CBAUD;
|
||||
termios_p->c_cflag |= ((tcflag_t)speed << _CBAUD_SHIFT);
|
||||
termios_p->c_ospeed = speed;
|
||||
return OK;
|
||||
}
|
||||
|
||||
@ -1,118 +0,0 @@
|
||||
/****************************************************************************
|
||||
* lib/termios/lib_getspeed.c
|
||||
*
|
||||
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <sys/str_tty.h>
|
||||
#include <sys/ioctl.h>
|
||||
|
||||
#include <nuttx/serial/tioctl.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Variables
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Variables
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: get_speed
|
||||
*
|
||||
* Descripton:
|
||||
* set_speed(), get_speed(), and reset_speed are non-standard AIX-like
|
||||
* interfaces to simplify TTY baud rate operations.
|
||||
*
|
||||
* The baud rate functions set_speed() and get_speed() are provided to
|
||||
* allow the applications to program any value of the baud rate that is
|
||||
* supported by the serial driver, but that cannot be expressed using
|
||||
* the termios subroutines cfsetospeed, cfsetispeed, cfgetospeed,
|
||||
* and cfsgetispeed. Those subroutines are limited to the set of values
|
||||
* defined termios.h.
|
||||
*
|
||||
* Normal mode: This is the default mode, in which a termios supported
|
||||
* speed is in use.
|
||||
*
|
||||
* Speed-extended mode: This mode is entered by calling set_speed() with
|
||||
* a non-termios supported speed at the configuration of the line. In this
|
||||
* mode, all the calls to tcgetattr subroutine or TCGETS ioctl subroutine
|
||||
* will have B50 in the returned termios structure.
|
||||
*
|
||||
* If tcsetattr() or TCSETS, TCSETAF, or TCSETAW ioctl calls the driver
|
||||
* and attempts to set B50, the actual baud rate is not changed. If it
|
||||
* attempts to set any other termios-supported speed, will switch back
|
||||
* to the normal mode and the requested baud rate is set. Calling
|
||||
* reset_speed subroutine is another way to switch back to the
|
||||
* normal mode.
|
||||
*
|
||||
* Input Parameters:
|
||||
* fd - The 'fd' argument is an open file descriptor associated with a
|
||||
* terminal.
|
||||
*
|
||||
* Returned Value:
|
||||
* Upon successful completion, the extended baud is returned. Otherwise,
|
||||
* -1 is returned and errno is set to indicate the error.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int32_t get_speed(int fd)
|
||||
{
|
||||
int32_t speed;
|
||||
int ret;
|
||||
|
||||
ret = ioctl(fd, TIOCGETSPEED, (unsigned long)((uintptr_t)&speed));
|
||||
if (ret < 0)
|
||||
{
|
||||
return (int32_t)ret;
|
||||
}
|
||||
|
||||
return speed;
|
||||
}
|
||||
@ -1,109 +0,0 @@
|
||||
/****************************************************************************
|
||||
* lib/termios/lib_resetspeed.c
|
||||
*
|
||||
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <sys/str_tty.h>
|
||||
#include <sys/ioctl.h>
|
||||
|
||||
#include <nuttx/serial/tioctl.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Variables
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Variables
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: reset_speed
|
||||
*
|
||||
* Descripton:
|
||||
* set_speed(), get_speed(), and reset_speed are non-standard AIX-like
|
||||
* interfaces to simplify TTY baud rate operations.
|
||||
*
|
||||
* The baud rate functions set_speed() and get_speed() are provided to
|
||||
* allow the applications to program any value of the baud rate that is
|
||||
* supported by the serial driver, but that cannot be expressed using
|
||||
* the termios subroutines cfsetospeed, cfsetispeed, cfgetospeed,
|
||||
* and cfsgetispeed. Those subroutines are limited to the set of values
|
||||
* defined termios.h.
|
||||
*
|
||||
* Normal mode: This is the default mode, in which a termios supported
|
||||
* speed is in use.
|
||||
*
|
||||
* Speed-extended mode: This mode is entered by calling set_speed() with
|
||||
* a non-termios supported speed at the configuration of the line. In this
|
||||
* mode, all the calls to tcgetattr subroutine or TCGETS ioctl subroutine
|
||||
* will have B50 in the returned termios structure.
|
||||
*
|
||||
* If tcsetattr() or TCSETS, TCSETAF, or TCSETAW ioctl calls the driver
|
||||
* and attempts to set B50, the actual baud rate is not changed. If it
|
||||
* attempts to set any other termios-supported speed, will switch back
|
||||
* to the normal mode and the requested baud rate is set. Calling
|
||||
* reset_speed subroutine is another way to switch back to the
|
||||
* normal mode.
|
||||
*
|
||||
* Input Parameters:
|
||||
* fd - The 'fd' argument is an open file descriptor associated with a terminal.
|
||||
* cmd - The TCFLSH ioctl argument.
|
||||
*
|
||||
* Returned Value:
|
||||
* Upon successful completion, 0 is returned. Otherwise, -1 is returned and
|
||||
* errno is set to indicate the error.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int reset_speed(int fd)
|
||||
{
|
||||
return ioctl(fd, TIOCRESETSPEED, 0L);
|
||||
}
|
||||
@ -1,110 +0,0 @@
|
||||
/****************************************************************************
|
||||
* lib/termios/lib_setspeed.c
|
||||
*
|
||||
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <sys/str_tty.h>
|
||||
#include <sys/ioctl.h>
|
||||
|
||||
#include <nuttx/serial/tioctl.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Variables
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Variables
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: set_speed
|
||||
*
|
||||
* Descripton:
|
||||
* set_speed(), get_speed(), and reset_speed are non-standard AIX-like
|
||||
* interfaces to simplify TTY baud rate operations.
|
||||
*
|
||||
* The baud rate functions set_speed() and get_speed() are provided to
|
||||
* allow the applications to program any value of the baud rate that is
|
||||
* supported by the serial driver, but that cannot be expressed using
|
||||
* the termios subroutines cfsetospeed, cfsetispeed, cfgetospeed,
|
||||
* and cfsgetispeed. Those subroutines are limited to the set of values
|
||||
* defined termios.h.
|
||||
*
|
||||
* Normal mode: This is the default mode, in which a termios supported
|
||||
* speed is in use.
|
||||
*
|
||||
* Speed-extended mode: This mode is entered by calling set_speed() with
|
||||
* a non-termios supported speed at the configuration of the line. In this
|
||||
* mode, all the calls to tcgetattr subroutine or TCGETS ioctl subroutine
|
||||
* will have B50 in the returned termios structure.
|
||||
*
|
||||
* If tcsetattr() or TCSETS, TCSETAF, or TCSETAW ioctl calls the driver
|
||||
* and attempts to set B50, the actual baud rate is not changed. If it
|
||||
* attempts to set any other termios-supported speed, will switch back
|
||||
* to the normal mode and the requested baud rate is set. Calling
|
||||
* reset_speed subroutine is another way to switch back to the
|
||||
* normal mode.
|
||||
*
|
||||
* Input Parameters:
|
||||
* fd - The 'fd' argument is an open file descriptor associated with a
|
||||
* terminal.
|
||||
* speed - The new, extended baud
|
||||
*
|
||||
* Returned Value:
|
||||
* Upon successful completion, 0 is returned. Otherwise, -1 is returned and
|
||||
* errno is set to indicate the error.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int set_speed(int fd, int32_t speed)
|
||||
{
|
||||
return ioctl(fd, TIOCSETSPEED, (unsigned long)speed);
|
||||
}
|
||||
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Reference in New Issue
Block a user