Baud definitions (B9600 for example) are again encoded; Now supports the BOTHER settings which allows specifying the baud via c_ispeed and c_ospeed termios fields
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4970 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
parent
369ef8947f
commit
58864cc6e9
11 changed files with 316 additions and 205 deletions
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@ -3040,11 +3040,18 @@
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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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Sigh... removed. We don't need any more almost standard interfaces! (SVN
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revision 4968 if you want the short-lived code).
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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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* include/termios.h and lib/termios/*: Redesigned yet again (this is getting
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painful. NuttX now supports the BOTHER baud setting just as Linux does. termios
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Bxxx definitions are again encoded; cf[set|get][o|i]speed now deal with only the
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encoded values. If the encoed baud is set to BOTHER, then the values in the (non-
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standard) c_ispeed and c_ospeed baud values may be accessed directly.
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@ -485,5 +485,11 @@ config USART3_2STOP
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endmenu
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config SERIAL_TERMIOS
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bool "Serial driver TERMIOS supported"
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depends on LPC43_USART0 || LPC43_UART1 || LPC43_USART2 || LPC43_USART3
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default n
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---help---
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Serial driver supports termios.h interfaces (tcsetattr, tcflush, etc.).
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If this is not defined, then the terminal settings (baud, parity, etc).
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are not configurable at runtime; serial streams cannot be flushed, etc..
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@ -1756,6 +1756,15 @@ config USART6_RXDMA
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endmenu
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config SERIAL_TERMIOS
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bool "Serial driver TERMIOS supported"
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depends on STM32_USART1 || STM32_USART2 || STM32_USART3 || STM32_UART4 || STM32_UART5 || STM32_USART6
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default n
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---help---
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Serial driver supports termios.h interfaces (tcsetattr, tcflush, etc.).
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If this is not defined, then the terminal settings (baud, parity, etc).
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are not configurable at runtime; serial streams cannot be flushed, etc..
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menu "SPI Configuration"
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depends on STM32_SPI
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@ -53,6 +53,10 @@
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#include <nuttx/serial/serial.h>
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#include <nuttx/power/pm.h>
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#ifdef CONFIG_SERIAL_TERMIOS
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# include <termios.h>
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#endif
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#include <arch/serial.h>
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#include <arch/board/board.h>
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@ -149,11 +153,23 @@ struct up_dev_s
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uint16_t ie; /* Saved interrupt mask bits value */
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uint16_t sr; /* Saved status bits */
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const uint8_t irq; /* IRQ associated with this USART */
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/* If termios are supported, then the following fields may vary at
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* runtime.
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*/
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#ifdef CONFIG_SERIAL_TERMIOS
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uint8_t parity; /* 0=none, 1=odd, 2=even */
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uint8_t bits; /* Number of bits (7 or 8) */
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bool stopbits2; /* True: Configure with 2 stop bits instead of 1 */
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uint32_t baud; /* Configured baud */
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#else
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const uint8_t parity; /* 0=none, 1=odd, 2=even */
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const uint8_t bits; /* Number of bits (7 or 8) */
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const bool stopbits2; /* True: Configure with 2 stop bits instead of 1 */
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const uint32_t baud; /* Configured baud */
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#endif
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const uint8_t irq; /* IRQ associated with this USART */
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const uint32_t apbclock; /* PCLK 1 or 2 frequency */
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const uint32_t usartbase; /* Base address of USART registers */
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const uint32_t tx_gpio; /* U[S]ART TX GPIO pin configuration */
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@ -181,6 +197,7 @@ struct up_dev_s
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* Private Function Prototypes
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****************************************************************************/
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static void up_setspeed(struct uart_dev_s *dev);
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static int up_setup(struct uart_dev_s *dev);
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static void up_shutdown(struct uart_dev_s *dev);
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static int up_attach(struct uart_dev_s *dev);
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@ -770,6 +787,54 @@ static int up_dma_nextrx(struct up_dev_s *priv)
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}
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#endif
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/****************************************************************************
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* Name: up_setspeed
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*
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* Description:
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* Set the serial line speed.
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*
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****************************************************************************/
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#ifndef CONFIG_SUPPRESS_UART_CONFIG
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static void up_setspeed(struct uart_dev_s *dev)
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{
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struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
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uint32_t usartdiv32;
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uint32_t mantissa;
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uint32_t fraction;
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uint32_t brr;
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/* Configure the USART Baud Rate. The baud rate for the receiver and
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* transmitter (Rx and Tx) are both set to the same value as programmed
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* in the Mantissa and Fraction values of USARTDIV.
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*
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* baud = fCK / (16 * usartdiv)
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* usartdiv = fCK / (16 * baud)
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*
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* Where fCK is the input clock to the peripheral (PCLK1 for USART2, 3, 4, 5
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* or PCLK2 for USART1)
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*
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* First calculate (NOTE: all stand baud values are even so dividing by two
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* does not lose precision):
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*
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* usartdiv32 = 32 * usartdiv = fCK / (baud/2)
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*/
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usartdiv32 = priv->apbclock / (priv->baud >> 1);
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/* The mantissa part is then */
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mantissa = usartdiv32 >> 5;
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brr = mantissa << USART_BRR_MANT_SHIFT;
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/* The fractional remainder (with rounding) */
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fraction = (usartdiv32 - (mantissa << 5) + 1) >> 1;
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brr |= fraction << USART_BRR_FRAC_SHIFT;
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up_serialout(priv, STM32_USART_BRR_OFFSET, brr);
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}
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#endif
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/****************************************************************************
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* Name: up_setup
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*
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@ -783,10 +848,6 @@ static int up_setup(struct uart_dev_s *dev)
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{
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struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
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#ifndef CONFIG_SUPPRESS_UART_CONFIG
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uint32_t usartdiv32;
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uint32_t mantissa;
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uint32_t fraction;
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uint32_t brr;
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uint32_t regval;
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/* Note: The logic here depends on the fact that that the USART module
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@ -858,34 +919,9 @@ static int up_setup(struct uart_dev_s *dev)
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up_serialout(priv, STM32_USART_CR3_OFFSET, regval);
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/* Configure the USART Baud Rate. The baud rate for the receiver and
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* transmitter (Rx and Tx) are both set to the same value as programmed
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* in the Mantissa and Fraction values of USARTDIV.
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*
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* baud = fCK / (16 * usartdiv)
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* usartdiv = fCK / (16 * baud)
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*
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* Where fCK is the input clock to the peripheral (PCLK1 for USART2, 3, 4, 5
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* or PCLK2 for USART1)
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*
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* First calculate (NOTE: all stand baud values are even so dividing by two
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* does not lose precision):
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*
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* usartdiv32 = 32 * usartdiv = fCK / (baud/2)
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*/
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/* Configure the USART Baud Rate. */
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usartdiv32 = priv->apbclock / (priv->baud >> 1);
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/* The mantissa part is then */
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mantissa = usartdiv32 >> 5;
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brr = mantissa << USART_BRR_MANT_SHIFT;
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/* The fractional remainder (with rounding) */
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fraction = (usartdiv32 - (mantissa << 5) + 1) >> 1;
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brr |= fraction << USART_BRR_FRAC_SHIFT;
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up_serialout(priv, STM32_USART_BRR_OFFSET, brr);
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up_setspeed(dev);
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/* Enable Rx, Tx, and the USART */
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@ -1182,26 +1218,75 @@ static int up_ioctl(struct file *filep, int cmd, unsigned long arg)
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{
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struct inode *inode = filep->f_inode;
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struct uart_dev_s *dev = inode->i_private;
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#ifdef CONFIG_USART_BREAKS
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struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
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#endif
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int ret = OK;
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switch (cmd)
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{
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case TIOCSERGSTRUCT:
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{
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struct up_dev_s *user = (struct up_dev_s*)arg;
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if (!user)
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{
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ret = -EINVAL;
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}
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else
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{
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memcpy(user, dev, sizeof(struct up_dev_s));
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}
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}
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break;
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struct up_dev_s *user = (struct up_dev_s*)arg;
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if (!user)
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{
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ret = -EINVAL;
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}
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else
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{
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memcpy(user, dev, sizeof(struct up_dev_s));
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}
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}
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break;
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#ifdef CONFIG_SERIAL_TERMIOS
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case TCGETS:
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{
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struct termios *termiosp = (struct termios*)arg;
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if (!termiosp)
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{
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ret = -EINVAL;
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break;
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}
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/* TODO: (1) Note that only the BOTHER baud is returned; (2) Other
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* termios fields are not yet initialized. Here we also exploit the
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* internal knowledge that ctfsetospeed() is equivalent to
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* cfsetispeed().
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*/
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cfsetispeed(termiosp, BOTHER);
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termiosp->c_ispeed = priv->baud;
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termiosp->c_ospeed = priv->baud;
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}
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break;
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case TCSETS:
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{
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struct termios *termiosp = (struct termios*)arg;
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if (!termiosp)
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{
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ret = -EINVAL;
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break;
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}
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/* TODO: Only the BOTHER speed setting is supported. Here we
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* also exploit the internal knowledge that ctfgetospeed() is
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* equivalent to cfgetispeed().
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*/
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if (cfgetospeed(termiosp) != BOTHER ||
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termiosp->c_ispeed != termiosp->c_ospeed)
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{
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ret = -ENOSYS;
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break;
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}
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priv->baud = termiosp->c_ispeed;
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up_setspeed(dev);
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}
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break;
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#endif
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#ifdef CONFIG_USART_BREAKS
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case TIOCSBRK: /* BSD compatibility: Turn break on, unconditionally */
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@ -1188,6 +1188,15 @@ config UART6_2STOP
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endmenu
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config SERIAL_TERMIOS
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bool "Serial driver TERMIOS supported"
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depends on PIC32MX_UART1 || PIC32MX_UART2 || PIC32MX_UART3 || PIC32MX_UART4 || PIC32MX_UART5 || PIC32MX_UART6
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default n
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---help---
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Serial driver supports termios.h interfaces (tcsetattr, tcflush, etc.).
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If this is not defined, then the terminal settings (baud, parity, etc).
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are not configurable at runtime; serial streams cannot be flushed, etc..
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choice
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prompt "PIC32MX PHY Selection"
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depends on PIC32MX_ETHERNET
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@ -181,6 +181,11 @@ CONFIG_LPC43_WWDT=n
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#
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# LPC43xx specific serial device driver settings
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#
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# CONFIG_SERIAL_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 cannot be
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# flushed, etc.
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#
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# CONFIG_U[S]ARTn_SERIAL_CONSOLE - selects the UARTn for the
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# console and ttys0 (default is the UART1).
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# CONFIG_U[S]ARTn_RXBUFSIZE - Characters are buffered as received.
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@ -192,6 +197,8 @@ CONFIG_LPC43_WWDT=n
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# CONFIG_U[S]ARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
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# CONFIG_U[S]ARTn_2STOP - Two stop bits
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#
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CONFIG_SERIAL_TERMIOS=n
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CONFIG_USART0_SERIAL_CONSOLE=y
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CONFIG_UART1_SERIAL_CONSOLE=n
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CONFIG_USART2_SERIAL_CONSOLE=n
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@ -776,10 +783,6 @@ 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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@ -826,7 +829,6 @@ 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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@ -50,131 +50,133 @@
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/* Terminal input modes (c_iflag in the termios structure) */
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#define BRKINT (1 << 0) /* Signal interrupt on break */
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#define ICRNL (1 << 1) /* Map CR to NL on input */
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#define IGNBRK (1 << 2) /* Ignore break condition */
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#define IGNCR (1 << 3) /* Ignore CR */
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#define IGNPAR (1 << 4) /* Ignore characters with parity errors */
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#define INLCR (1 << 5) /* Map NL to CR on input */
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#define INPCK (1 << 6) /* Enable input parity check */
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#define ISTRIP (1 << 7) /* Strip character */
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#define IUCLC (1 << 8) /* Map upper-case to lower-case on input (LEGACY) */
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#define IXANY (1 << 9) /* Enable any character to restart output */
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#define IXOFF (1 << 10) /* Enable start/stop input control */
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#define IXON (1 << 11) /* Enable start/stop output control */
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#define PARMRK (1 << 12) /* Mark parity errors */
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#define BRKINT (1 << 0) /* Bit 0: Signal interrupt on break */
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#define ICRNL (1 << 1) /* Bit 1: Map CR to NL on input */
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#define IGNBRK (1 << 2) /* Bit 2: Ignore break condition */
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#define IGNCR (1 << 3) /* Bit 3: Ignore CR */
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#define IGNPAR (1 << 4) /* Bit 4: Ignore characters with parity errors */
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#define INLCR (1 << 5) /* Bit 5: Map NL to CR on input */
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#define INPCK (1 << 6) /* Bit 6: Enable input parity check */
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#define ISTRIP (1 << 7) /* Bit 7: Strip character */
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#define IUCLC (1 << 8) /* Bit 8: Map upper-case to lower-case on input (LEGACY) */
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#define IXANY (1 << 9) /* Bit 9: Enable any character to restart output */
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#define IXOFF (1 << 10) /* Bit 10: Enable start/stop input control */
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#define IXON (1 << 11) /* Bit 11: Enable start/stop output control */
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#define PARMRK (1 << 12) /* Bit 12: Mark parity errors */
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/* Terminal output modes (c_oflag in the termios structure) */
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#define OPOST (1 << 0) /* Post-process output */
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#define OLCUC (1 << 1) /* Map lower-case to upper-case on output (LEGACY) */
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#define ONLCR (1 << 2) /* Map NL to CR-NL on output */
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#define OCRNL (1 << 3) /* Map CR to NL on output */
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#define ONOCR (1 << 4) /* No CR output at column 0 */
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#define ONLRET (1 << 5) /* NL performs CR function */
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#define OFILL (1 << 6) /* Use fill characters for delay */
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#define NLDLY (1 << 7) /* Select newline delays: */
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# define NL0 (0 << 7) /* Newline character type 0 */
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# define NL1 (1 << 7) /* Newline character type 1 */
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#define CRDLY (3 << 8) /* Select carriage-return delays: */
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# define CR0 (0 << 8) /* Carriage-return delay type 0 */
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# define CR1 (1 << 8) /* Carriage-return delay type 1 */
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# define CR2 (2 << 8) /* Carriage-return delay type 2 */
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# define CR3 (3 << 8) /* Carriage-return delay type 3 */
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#define TABDLY (3 << 10) /* Select horizontal-tab delays: */
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# define TAB0 (0 << 10) /* Horizontal-tab delay type 0 */
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# define TAB1 (1 << 10) /* Horizontal-tab delay type 1 */
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# define TAB2 (2 << 10) /* Horizontal-tab delay type 2 */
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# define TAB3 (3 << 10) /* Expand tabs to spaces */
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#define BSDLY (1 << 12) /* Select backspace delays: */
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# define BS0 (0 << 12) /* Backspace-delay type 0 */
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# define BS1 (1 << 12) /* Backspace-delay type 1 */
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#define VTDLY (1 << 13) /* Select vertical-tab delays: */
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# define VT0 (0 << 13) /* Vertical-tab delay type 0 */
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# define VT1 (1 << 13) /* Vertical-tab delay type 1 */
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#define FFDLY (1 << 14) /* Select form-feed delays: */
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# define FF0 (0 << 14) /* Form-feed delay type 0 */
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# define FF1 (1 << 14) /* Form-feed delay type 1 */
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#define OPOST (1 << 0) /* Bit 0: Post-process output */
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#define OLCUC (1 << 1) /* Bit 1: Map lower-case to upper-case on output (LEGACY) */
|
||||
#define ONLCR (1 << 2) /* Bit 2: Map NL to CR-NL on output */
|
||||
#define OCRNL (1 << 3) /* Bit 3: Map CR to NL on output */
|
||||
#define ONOCR (1 << 4) /* Bit 4: No CR output at column 0 */
|
||||
#define ONLRET (1 << 5) /* Bit 5: NL performs CR function */
|
||||
#define OFILL (1 << 6) /* Bit 6: Use fill characters for delay */
|
||||
#define NLDLY (1 << 7) /* Bit 7: Select newline delays: */
|
||||
# define NL0 (0 << 7) /* Newline character type 0 */
|
||||
# define NL1 (1 << 7) /* Newline character type 1 */
|
||||
#define CRDLY (3 << 8) /* Bits 8-9: Select carriage-return delays: */
|
||||
# define CR0 (0 << 8) /* Carriage-return delay type 0 */
|
||||
# define CR1 (1 << 8) /* Carriage-return delay type 1 */
|
||||
# define CR2 (2 << 8) /* Carriage-return delay type 2 */
|
||||
# define CR3 (3 << 8) /* Carriage-return delay type 3 */
|
||||
#define TABDLY (3 << 10) /* Bit 10-11: Select horizontal-tab delays: */
|
||||
# define TAB0 (0 << 10) /* Horizontal-tab delay type 0 */
|
||||
# define TAB1 (1 << 10) /* Horizontal-tab delay type 1 */
|
||||
# define TAB2 (2 << 10) /* Horizontal-tab delay type 2 */
|
||||
# define TAB3 (3 << 10) /* Expand tabs to spaces */
|
||||
#define BSDLY (1 << 12) /* Bit 12: Select backspace delays: */
|
||||
# define BS0 (0 << 12) /* Backspace-delay type 0 */
|
||||
# define BS1 (1 << 12) /* Backspace-delay type 1 */
|
||||
#define VTDLY (1 << 13) /* Bit 13: Select vertical-tab delays: */
|
||||
# define VT0 (0 << 13) /* Vertical-tab delay type 0 */
|
||||
# define VT1 (1 << 13) /* Vertical-tab delay type 1 */
|
||||
#define FFDLY (1 << 14) /* Bit 14: Select form-feed delays: */
|
||||
# define FF0 (0 << 14) /* Form-feed delay type 0 */
|
||||
# define FF1 (1 << 14) /* Form-feed delay type 1 */
|
||||
|
||||
/* Control Modes (c_cflag in the termios structure) */
|
||||
|
||||
#define CSIZE (3 << 0) /* Character size: */
|
||||
# define CS5 (0 << 0) /* 5 bits */
|
||||
# define CS6 (1 << 0) /* 6 bits */
|
||||
# define CS7 (2 << 0) /* 7 bits */
|
||||
# define CS8 (3 << 0) /* 8 bits */
|
||||
#define CSTOPB (1 << 2) /* Send two stop bits, else one */
|
||||
#define CREAD (1 << 3) /* Enable receiver */
|
||||
#define PARENB (1 << 4) /* Parity enable */
|
||||
#define PARODD (1 << 5) /* Odd parity, else even */
|
||||
#define HUPCL (1 << 6) /* Hang up on last close */
|
||||
#define CLOCAL (1 << 7) /* Ignore modem status lines */
|
||||
#define CBAUD (0x0f) /* Bits 0-3: baud */
|
||||
#define CBAUDEX (1 << 4) /* Bit 4: Extended baud */
|
||||
#define CSIZE (3 << 5) /* Bits 5-6: Character size: */
|
||||
# define CS5 (0 << 5) /* 5 bits */
|
||||
# define CS6 (1 << 5) /* 6 bits */
|
||||
# define CS7 (2 << 5) /* 7 bits */
|
||||
# define CS8 (3 << 5) /* 8 bits */
|
||||
#define CSTOPB (1 << 7) /* Bit 7: Send two stop bits, else one */
|
||||
#define CREAD (1 << 8) /* Bit 8: Enable receiver */
|
||||
#define PARENB (1 << 9) /* Bit 9: Parity enable */
|
||||
#define PARODD (1 << 10) /* Bit 10: Odd parity, else even */
|
||||
#define HUPCL (1 << 11) /* Bit 11: Hang up on last close */
|
||||
#define CLOCAL (1 << 12) /* Bit 12: Ignore modem status lines */
|
||||
|
||||
/* Local Modes (c_lflag in the termios structure) */
|
||||
|
||||
#define ECHO (1 << 0) /* Enable echo */
|
||||
#define ECHOE (1 << 1) /* Echo erase character as error-correcting backspace */
|
||||
#define ECHOK (1 << 2) /* Echo KILL */
|
||||
#define ECHONL (1 << 3) /* Echo NL */
|
||||
#define ICANON (1 << 4) /* Canonical input (erase and kill processing) */
|
||||
#define IEXTEN (1 << 5) /* Enable extended input character processing */
|
||||
#define ISIG (1 << 6) /* Enable signals */
|
||||
#define NOFLSH (1 << 7) /* Disable flush after interrupt or quit */
|
||||
#define TOSTOP (1 << 8) /* Send SIGTTOU for background output */
|
||||
#define XCASE (1 << 9) /* Canonical upper/lower presentation (LEGACY) */
|
||||
#define ECHO (1 << 0) /* Bit 0: Enable echo */
|
||||
#define ECHOE (1 << 1) /* Bit 1: Echo erase character as error-correcting backspace */
|
||||
#define ECHOK (1 << 2) /* Bit 2: Echo KILL */
|
||||
#define ECHONL (1 << 3) /* Bit 3: Echo NL */
|
||||
#define ICANON (1 << 4) /* Bit 4: Canonical input (erase and kill processing) */
|
||||
#define IEXTEN (1 << 5) /* Bit 5: Enable extended input character processing */
|
||||
#define ISIG (1 << 6) /* Bit 6: Enable signals */
|
||||
#define NOFLSH (1 << 7) /* Bit 7: Disable flush after interrupt or quit */
|
||||
#define TOSTOP (1 << 8) /* Bit 8: Send SIGTTOU for background output */
|
||||
#define XCASE (1 << 9) /* Bit 9: Canonical upper/lower presentation (LEGACY) */
|
||||
|
||||
/* The following are subscript names for the termios c_cc array */
|
||||
|
||||
#define VEOF 0 /* EOF character (canonical mode) */
|
||||
#define VMIN VEOF /* MIN value (Non-canonical mode) */
|
||||
#define VEOL 1 /* EOL character (canonical mode) */
|
||||
#define VTIME VEOL /* TIME value (Non-canonical mode) */
|
||||
#define VERASE 2 /* ERASE character (canonical mode) */
|
||||
#define VINTR 3 /* INTR character */
|
||||
#define VKILL 4 /* KILL character (canonical mode) */
|
||||
#define VQUIT 5 /* QUIT character */
|
||||
#define VSTART 6 /* START character */
|
||||
#define VSTOP 7 /* STOP character */
|
||||
#define VSUSP 8 /* SUSP character */
|
||||
#define NCCS 9 /* Size of the array c_cc for control characters */
|
||||
#define VEOF 0 /* Bit 0: EOF character (canonical mode) */
|
||||
#define VMIN VEOF /* Bit 0: MIN value (Non-canonical mode) */
|
||||
#define VEOL 1 /* Bit 1: EOL character (canonical mode) */
|
||||
#define VTIME VEOL /* Bit 1: TIME value (Non-canonical mode) */
|
||||
#define VERASE 2 /* Bit 2: ERASE character (canonical mode) */
|
||||
#define VINTR 3 /* Bit 3: INTR character */
|
||||
#define VKILL 4 /* Bit 4: KILL character (canonical mode) */
|
||||
#define VQUIT 5 /* Bit 5: QUIT character */
|
||||
#define VSTART 6 /* Bit 6: START character */
|
||||
#define VSTOP 7 /* Bit 7: STOP character */
|
||||
#define VSUSP 8 /* Bit 8: SUSP character */
|
||||
#define NCCS 9 /* Bit 9: Size of the array c_cc for control characters */
|
||||
|
||||
/* Baud Rate Selection (objects of type speed_t). NOTE that as a simplification
|
||||
* in NuttX, the value of the baud symbol is the buad rate itself; not an encoded
|
||||
* value as you will see in most implementations of termios.h.
|
||||
*/
|
||||
/* Baud Rate Selection. */
|
||||
|
||||
#define B0 0 /* Hang up */
|
||||
#define B50 50 /* 50 baud */
|
||||
#define B75 75 /* 75 baud */
|
||||
#define B110 110 /* 110 baud */
|
||||
#define B134 134 /* 134.5 baud */
|
||||
#define B150 150 /* 150 baud */
|
||||
#define B200 200 /* 200 baud */
|
||||
#define B300 300 /* 300 baud */
|
||||
#define B600 600 /* 600 baud */
|
||||
#define B1200 1200 /* 1,200 baud */
|
||||
#define B1800 1800 /* 1,800 baud */
|
||||
#define B2400 2400 /* 2,400 baud */
|
||||
#define B4800 4800 /* 4,800 baud */
|
||||
#define B9600 9600 /* 9,600 baud */
|
||||
#define B19200 19200 /* 19,200 baud */
|
||||
#define B38400 38400 /* 38,400 baud */
|
||||
#define B0 (0x00) /* Hang up */
|
||||
#define B50 (0x01) /* 50 baud */
|
||||
#define B75 (0x02) /* 75 baud */
|
||||
#define B110 (0x03) /* 110 baud */
|
||||
#define B134 (0x04) /* 134.5 baud */
|
||||
#define B150 (0x05) /* 150 baud */
|
||||
#define B200 (0x06) /* 200 baud */
|
||||
#define B300 (0x07) /* 300 baud */
|
||||
#define B600 (0x08) /* 600 baud */
|
||||
#define B1200 (0x09) /* 1,200 baud */
|
||||
#define B1800 (0x0a) /* 1,800 baud */
|
||||
#define B2400 (0x0b) /* 2,400 baud */
|
||||
#define B4800 (0x0c) /* 4,800 baud */
|
||||
#define B9600 (0x0d) /* 9,600 baud */
|
||||
#define B19200 (0x0e) /* 19,200 baud */
|
||||
#define B38400 (0x0f) /* 38,400 baud */
|
||||
|
||||
#define B57600 57600 /* 57,600 baud */
|
||||
#define B115200 115200 /* 115,200 baud */
|
||||
#define B128000 128000 /* 128,000 baud */
|
||||
#define B230400 230400 /* 230,400 baud */
|
||||
#define B256000 256000 /* 256,000 baud */
|
||||
#define B460800 460800 /* 460,800 baud */
|
||||
#define B500000 500000 /* 500,000 baud */
|
||||
#define B576000 576000 /* 576,000 baud */
|
||||
#define B921600 921600 /* 921,600 baud */
|
||||
#define B1000000 1000000 /* 1,000,000 baud */
|
||||
#define B1152000 1152000 /* 1,152,000 baud */
|
||||
#define B1500000 1500000 /* 1,500,000 baud */
|
||||
#define B2000000 2000000 /* 2,000,000 baud */
|
||||
#define B2500000 2500000 /* 2,500,000 baud */
|
||||
#define B3000000 3000000 /* 3,000,000 baud */
|
||||
/* "Extended" baud rates above 37K include the CBAUDEX bit */
|
||||
|
||||
#define BOTHER (CBAUDEX | 0x00) /* Use baud values in c_ispeed and c_ospeed */
|
||||
#define B57600 (CBAUDEX | 0x01) /* 57,600 baud */
|
||||
#define B115200 (CBAUDEX | 0x02) /* 115,200 baud */
|
||||
#define B128000 (CBAUDEX | 0x03) /* 128,000 baud */
|
||||
#define B230400 (CBAUDEX | 0x04) /* 230,400 baud */
|
||||
#define B256000 (CBAUDEX | 0x05) /* 256,000 baud */
|
||||
#define B460800 (CBAUDEX | 0x06) /* 460,800 baud */
|
||||
#define B500000 (CBAUDEX | 0x07) /* 500,000 baud */
|
||||
#define B576000 (CBAUDEX | 0x08) /* 576,000 baud */
|
||||
#define B921600 (CBAUDEX | 0x09) /* 921,600 baud */
|
||||
#define B1000000 (CBAUDEX | 0x0a) /* 1,000,000 baud */
|
||||
#define B1152000 (CBAUDEX | 0x0b) /* 1,152,000 baud */
|
||||
#define B1500000 (CBAUDEX | 0x0c) /* 1,500,000 baud */
|
||||
#define B2000000 (CBAUDEX | 0x0d) /* 2,000,000 baud */
|
||||
#define B2500000 (CBAUDEX | 0x0e) /* 2,500,000 baud */
|
||||
#define B3000000 (CBAUDEX | 0x0f) /* 3,000,000 baud */
|
||||
|
||||
/* Attribute Selection (used with tcsetattr()) */
|
||||
|
||||
|
|
@ -220,13 +222,10 @@ struct termios
|
|||
tcflag_t c_lflag; /* Local modes */
|
||||
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.
|
||||
*/
|
||||
/* If CBAUD == BOTHER, then these fields hold the input/output BAUD. */
|
||||
|
||||
speed_t c_ispeed; /* Input speed */
|
||||
speed_t c_ospeed; /* Output speed */
|
||||
speed_t c_ispeed; /* Input speed (non-POSIX)*/
|
||||
speed_t c_ospeed; /* Output speed (non-POSIX) */
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
|
|
|
|||
|
|
@ -70,24 +70,21 @@
|
|||
* This function shall return exactly the value in the termios data
|
||||
* structure, without interpretation.
|
||||
*
|
||||
* 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!
|
||||
* NOTE 1: NuttX does not not control input/output baud rates independently
|
||||
* Hense, this function is *identical* to cfgetospeed.
|
||||
* NOTE 2: If this function returns BOTHER and the more flexible input
|
||||
* speed can be obtained from the Linux-like c_ispeed field.
|
||||
*
|
||||
* Input Parameters:
|
||||
* termiosp - The termiosp argument is a pointer to a termios structure.
|
||||
*
|
||||
* Returned Value:
|
||||
* Baud value in the termios structure (not verified).
|
||||
* Encoded baud value from the termios structure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
speed_t cfgetispeed(const struct termios *termios_p)
|
||||
{
|
||||
DEBUGASSERT(termios_p);
|
||||
return termios_p->c_ispeed;
|
||||
return (termios_p->c_cflag & (CBAUD | CBAUDEX));
|
||||
}
|
||||
|
|
|
|||
|
|
@ -70,24 +70,21 @@
|
|||
* This function shall return exactly the value in the termios data
|
||||
* structure, without interpretation.
|
||||
*
|
||||
* 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!
|
||||
* NOTE 1: NuttX does not not control input/output baud rates independently
|
||||
* Hense, this function is *identical* to cfgetispeed.
|
||||
* NOTE 2: If this function returns BOTHER and the more flexible input
|
||||
* speed can be obtained from the Linux-like c_ospeed field.
|
||||
*
|
||||
* Input Parameters:
|
||||
* termiosp - The termiosp argument is a pointer to a termios structure.
|
||||
*
|
||||
* Returned Value:
|
||||
* Baud value in the termios structure (not verified).
|
||||
* Encoded baud value from the termios structure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
speed_t cfgetospeed(const struct termios *termios_p)
|
||||
{
|
||||
DEBUGASSERT(termios_p);
|
||||
return termios_p->c_ospeed;
|
||||
return (termios_p->c_cflag & (CBAUD | CBAUDEX));
|
||||
}
|
||||
|
|
|
|||
|
|
@ -71,26 +71,26 @@
|
|||
* There is no effect on the baud rates set in the hardware until a
|
||||
* subsequent successful call to tcsetattr() on the same termios structure.
|
||||
*
|
||||
* 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!
|
||||
* NOTE 1: NuttX does not not control input/output baud rates independently
|
||||
* Hense, this function is *identical* to cfsetospeed.
|
||||
* NOTE 2: If the specia value BOTHER is used, then the actual input baud
|
||||
* must also be provided in the (non-standard) c_ispeed field.
|
||||
*
|
||||
* Input Parameters:
|
||||
* termiosp - The termiosp argument is a pointer to a termios structure.
|
||||
* speed - The new input speed
|
||||
*
|
||||
* Returned Value:
|
||||
* Baud is not checked... OK is always returned.
|
||||
* Baud is not checked... OK is always returned (this is non-standard
|
||||
* behavior).
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int cfsetispeed(struct termios *termios_p, speed_t speed)
|
||||
{
|
||||
DEBUGASSERT(termios_p);
|
||||
termios_p->c_ispeed = speed;
|
||||
speed &= (CBAUD | CBAUDEX);
|
||||
termios_p->c_cflag &= ~(CBAUD | CBAUDEX);
|
||||
termios_p->c_cflag |= speed;
|
||||
return OK;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -71,26 +71,26 @@
|
|||
* There is no effect on the baud rates set in the hardware until a
|
||||
* subsequent successful call to tcsetattr() on the same termios structure.
|
||||
*
|
||||
* 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!
|
||||
* NOTE 1: NuttX does not not control input/output baud rates independently
|
||||
* Hense, this function is *identical* to cfsetispeed.
|
||||
* NOTE 2: If the specia value BOTHER is used, then the actual input baud
|
||||
* must also be provided in the (non-standard) c_ospeed field.
|
||||
*
|
||||
* Input Parameters:
|
||||
* termiosp - The termiosp argument is a pointer to a termios structure.
|
||||
* speed - The new output speed
|
||||
*
|
||||
* Returned Value:
|
||||
* Baud is not checked... OK is always returned.
|
||||
* Baud is not checked... OK is always returned (this is non-standard
|
||||
* behavior).
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int cfsetospeed(struct termios *termios_p, speed_t speed)
|
||||
{
|
||||
DEBUGASSERT(termios_p);
|
||||
termios_p->c_ospeed = speed;
|
||||
speed &= (CBAUD | CBAUDEX);
|
||||
termios_p->c_cflag &= ~(CBAUD | CBAUDEX);
|
||||
termios_p->c_cflag |= speed;
|
||||
return OK;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue