fly316/PX4-Autopilot
7
0
Fork 0
mirror of https://gitee.com/mirrors_PX4/PX4-Autopilot.git synced 2026-11-03 03:11:37 +08:00
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source 
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4970 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
2012-07-23 15:37:13 +00:00
parent fce36677c1
commit 1e15a6d1cf
14 changed files with 342 additions and 253 deletions
Download Patch File Download Diff File Expand all files Collapse all files
nuttx/lib/termios/lib_cfgetispeed.c
+6 -9
View File
@@ -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));
}
nuttx/lib/termios/lib_cfgetospeed.c
+6 -9
View File
@@ -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));
}
nuttx/lib/termios/lib_cfsetispeed.c
+9 -9
View File
@@ -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;
}
nuttx/lib/termios/lib_cfsetospeed.c
+9 -9
View File
@@ -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;
}