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体验新版 GitCode,发现更多精彩内容 >>
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de0a201e
编写于
12月 07, 2017
作者:
J
JasonJiaJie
提交者:
Bernard Xiong
12月 07, 2017
浏览文件
操作
浏览文件
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电子邮件补丁
差异文件
[Termios]1. Add termios test. 2.Add termios.h
1. Add termios test. 2.Add termios.h
上级
049ed504
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
373 addition
and
8 deletion
+373
-8
components/libc/compilers/armlibc/termios.h
components/libc/compilers/armlibc/termios.h
+7
-0
components/libc/termios/posix_termios.c
components/libc/termios/posix_termios.c
+6
-8
examples/libc/termios_test.c
examples/libc/termios_test.c
+360
-0
未找到文件。
components/libc/compilers/armlibc/termios.h
0 → 100644
浏览文件 @
de0a201e
#ifndef _TERMIOS_H__
#define _TERMIOS_H__
#include <sys/types.h>
#include <posix_termios.h>
#endif
components/libc/termios/posix_termios.c
浏览文件 @
de0a201e
...
...
@@ -28,8 +28,6 @@
#include <termios.h>
#include "posix_termios.h"
int
tcgetattr
(
int
fd
,
struct
termios
*
tio
)
{
/* Get the current serial port settings. */
...
...
@@ -41,20 +39,20 @@ int tcgetattr(int fd, struct termios *tio)
int
tcsetattr
(
int
fd
,
int
act
,
const
struct
termios
*
tio
)
{
switch
(
act
)
switch
(
act
)
{
case
TCSANOW
:
/* make the change immediately */
return
(
ioctl
(
fd
,
TCSETA
,
(
void
*
)
tio
));
case
TCSADRAIN
:
/*
* Don't make the change until all currently written data
* Don't make the change until all currently written data
* has been transmitted.
*/
return
(
ioctl
(
fd
,
TCSETAW
,
(
void
*
)
tio
));
case
TCSAFLUSH
:
/* Don't make the change until all currently written data
* has been transmitted, at which point any received but
/* Don't make the change until all currently written data
* has been transmitted, at which point any received but
* unread data is also discarded.
*/
return
(
ioctl
(
fd
,
TCSETAF
,
(
void
*
)
tio
));
...
...
@@ -65,7 +63,7 @@ int tcsetattr(int fd, int act, const struct termios *tio)
}
/**
* this function gets process group ID for session leader for controlling
* this function gets process group ID for session leader for controlling
* terminal
*
* @return always 0
...
...
@@ -87,7 +85,7 @@ speed_t cfgetispeed(const struct termios *tio)
int
cfsetospeed
(
struct
termios
*
tio
,
speed_t
speed
)
{
if
(
speed
&
~
CBAUD
)
if
(
speed
&
~
CBAUD
)
{
errno
=
EINVAL
;
return
-
1
;
...
...
examples/libc/termios_test.c
0 → 100644
浏览文件 @
de0a201e
/*
* termios_test.c
*
* Created on: 2017-12-06
* Author: JasonJia
*/
#include <rtthread.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <sys/time.h>
#if defined (RT_USING_POSIX)
#include <dfs_posix.h>
#include <dfs_select.h>
#if defined (RT_USING_POSIX_TERMIOS)
#include <termios.h>
#else
#error "TERMIOS need RT_USING_POSIX_TERMIOS"
#endif
#else
#error "POSIX poll/select need RT_USING_POSIX"
#endif
#define JOINT(x,y) x##y
#define B(x) JOINT(B,x)
#define Default_baud_rate 115200
#define Default_parity 'n'
#define BUFFER_SIZE 64
struct
termios_test_s
{
int
baud_rate
;
const
char
*
dev
;
};
static
struct
termios_test_s
term_param
;
static
int
_check_baud_rate
(
int
baud_rate
)
{
#define BAUD_RATE(x) \
{\
if(x==baud_rate) \
{\
rt_kprintf("%d baud rate\n",baud_rate);\
return JOINT(B,x);\
}\
}
BAUD_RATE
(
110
);
BAUD_RATE
(
200
);
BAUD_RATE
(
300
);
BAUD_RATE
(
600
);
BAUD_RATE
(
1200
);
BAUD_RATE
(
1800
);
BAUD_RATE
(
2400
);
BAUD_RATE
(
4800
);
BAUD_RATE
(
9600
);
BAUD_RATE
(
19200
);
BAUD_RATE
(
38400
);
BAUD_RATE
(
57600
);
BAUD_RATE
(
115200
);
BAUD_RATE
(
230400
);
BAUD_RATE
(
460800
);
BAUD_RATE
(
921600
);
rt_kprintf
(
"%d is not support,use default %d value.
\n
"
,
baud_rate
,
Default_baud_rate
);
return
B
(
Default_baud_rate
);
}
int
open_comm
(
const
char
*
name
)
{
int
fd
;
fd
=
open
(
name
,
O_RDWR
|
O_NOCTTY
|
O_NONBLOCK
,
0
);
if
(
fd
==
-
1
)
{
rt_kprintf
(
"Open %s fail.
\n
"
,
name
);
return
-
1
;
}
else
{
rt_kprintf
(
"Open %s success,fd:%d
\n
"
,
name
,
fd
);
}
return
fd
;
}
void
close_comm
(
int
fd
)
{
if
(
fd
!=
-
1
)
{
close
(
fd
);
}
}
void
config_comm
(
int
fd
,
int
speed_baud_rate
,
char
parity
,
int
data_bits
,
int
stop_bits
)
{
int
valid_baud_rate
=
0
;
struct
termios
new_tc
;
memset
(
&
new_tc
,
0x00
,
sizeof
(
struct
termios
));
valid_baud_rate
=
_check_baud_rate
(
speed_baud_rate
);
new_tc
.
c_cflag
|=
(
CLOCAL
|
CREAD
);
//Enable in default.
/*
*Set baud rate. e.g B115200 is 115200 bauds.
*/
cfsetispeed
(
&
new_tc
,
valid_baud_rate
);
//input speed
cfsetospeed
(
&
new_tc
,
valid_baud_rate
);
//output speed
/*
*Set parity.
*/
switch
(
parity
)
{
case
'n'
:
case
'N'
:
new_tc
.
c_cflag
&=
~
PARENB
;
//Disable parity.
break
;
case
'o'
:
case
'O'
:
new_tc
.
c_cflag
|=
PARENB
;
//Enable parity.
new_tc
.
c_cflag
|=
PARODD
;
//Odd parity.
break
;
case
'e'
:
case
'E'
:
new_tc
.
c_cflag
|=
PARENB
;
//Enable parity.
new_tc
.
c_cflag
&=
~
PARODD
;
//even parity.
break
;
}
/*
*Set data bits.
*/
new_tc
.
c_cflag
&=
~
CSIZE
;
switch
(
data_bits
)
{
case
5
:
break
;
case
6
:
break
;
case
7
:
new_tc
.
c_cflag
|=
CS7
;
break
;
case
8
:
new_tc
.
c_cflag
|=
CS8
;
break
;
}
/*
*Set stop bits.
*/
(
stop_bits
==
2
)
?
(
new_tc
.
c_cflag
|=
CSTOPB
)
:
(
new_tc
.
c_cflag
&=
~
CSTOPB
);
tcflush
(
fd
,
TCIFLUSH
);
//new_tc.c_cc[VTIME] = 0;
//new_tc.c_cc[VMIN] = 1;
if
(
tcsetattr
(
fd
,
TCSANOW
,
&
new_tc
)
!=
0
)
{
rt_kprintf
(
"Set port config fail!
\n
"
);
}
}
int
recv_comm
(
int
fd
,
unsigned
char
*
buffer
,
rt_size_t
size
,
struct
timeval
*
timeout
)
{
struct
timeval
t
;
int
ret
=
0
;
rt_size_t
drv_recved
=
0
;
int
recved
=
0
,
need
=
size
;
int
timeout_cnt
=
0
;
unsigned
char
*
c
=
RT_NULL
;
fd_set
readSet
;
RT_ASSERT
(
RT_NULL
!=
buffer
);
if
(
fd
==
-
1
)
{
return
-
1
;
}
t
.
tv_sec
=
0
;
t
.
tv_usec
=
100000
;
if
(
RT_NULL
==
timeout
)
{
/* Wait forever approximate, it's a large time. */
timeout_cnt
=
0xffffffff
;
}
else
{
timeout_cnt
=
(
timeout
->
tv_sec
*
1000
*
1000
+
timeout
->
tv_usec
)
/
(
t
.
tv_sec
*
1000
*
1000
+
t
.
tv_usec
);
}
while
(
1
)
{
FD_ZERO
(
&
readSet
);
FD_SET
(
fd
,
&
readSet
);
ret
=
select
(
fd
+
1
,
&
readSet
,
RT_NULL
,
RT_NULL
,
&
t
);
if
(
ret
<
0
)
{
rt_kprintf
(
"select error %d
\n
"
,
ret
);
break
;
}
else
if
(
ret
==
0
)
{
/* timeout */
timeout_cnt
--
;
if
(
timeout_cnt
==
0
)
{
rt_kprintf
(
"need %d data in timeout %d ms,but only %d recved.
\n
"
,
size
,
timeout
->
tv_sec
*
1000
+
timeout
->
tv_usec
/
1000
,
recved
);
recved
=
0
;
break
;
}
}
else
{
if
(
FD_ISSET
(
fd
,
&
readSet
))
{
c
=
&
buffer
[
size
-
need
];
ioctl
(
fd
,
FIONREAD
,
&
drv_recved
);
/* check poll and ioctl */
RT_ASSERT
(
drv_recved
!=
0
);
drv_recved
=
(
drv_recved
>
need
?
need
:
drv_recved
);
recved
=
read
(
fd
,
c
,
drv_recved
);
if
(
recved
!=
drv_recved
)
{
rt_kprintf
(
"fatal error %s(%d).
\n
"
,
__FUNCTION__
,
__LINE__
);
RT_ASSERT
(
0
);
recved
=
0
;
break
;
}
need
-=
recved
;
if
(
need
)
{
continue
;
}
else
if
(
need
==
0
)
{
recved
=
size
;
break
;
}
else
{
rt_kprintf
(
"fatal error %s(%d).
\n
"
,
__FUNCTION__
,
__LINE__
);
RT_ASSERT
(
0
);
}
}
}
}
return
recved
;
}
int
send_comm
(
int
fd
,
const
unsigned
char
*
buffer
,
rt_size_t
size
)
{
RT_ASSERT
(
RT_NULL
!=
buffer
);
if
(
fd
==
-
1
)
{
return
-
1
;
}
//serial framework does not support poll out now
write
(
fd
,
buffer
,
size
);
return
0
;
}
int
flush_comm
(
int
fd
)
{
if
(
fd
==
-
1
)
{
return
-
1
;
}
tcflush
(
fd
,
TCIFLUSH
);
return
0
;
}
void
termios_test_entry
(
void
*
p
)
{
int
len
=
0
;
int
fd
=
-
1
;
unsigned
char
*
pBuf
=
RT_NULL
;
struct
termios_test_s
*
pTerm
=
(
struct
termios_test_s
*
)
p
;
if
((
fd
=
open_comm
(
pTerm
->
dev
))
==
-
1
)
{
rt_kprintf
(
"Check the device name...
\n
"
);
return
;
}
pBuf
=
(
unsigned
char
*
)
rt_malloc
(
BUFFER_SIZE
);
RT_ASSERT
(
pBuf
!=
RT_NULL
);
memset
(
pBuf
,
0x00
,
BUFFER_SIZE
);
config_comm
(
fd
,
pTerm
->
baud_rate
,
Default_parity
,
8
,
1
);
flush_comm
(
fd
);
rt_kprintf
(
"Block recv 10 bytes.
\n
"
);
/* Block recv 10 bytes */
len
=
recv_comm
(
fd
,
pBuf
,
10
,
RT_NULL
);
rt_kprintf
(
"Recv:%s
\n
"
,
pBuf
);
send_comm
(
fd
,
pBuf
,
len
);
rt_kprintf
(
"Termios test exit.
\n
"
);
close_comm
(
fd
);
rt_free
(
pBuf
);
pBuf
=
RT_NULL
;
}
int
termios_test
(
int
argc
,
char
**
argv
)
{
rt_thread_t
tid
;
if
(
argc
<
2
)
{
rt_kprintf
(
"Please input device name...
\n
"
);
return
-
1
;
}
term_param
.
dev
=
argv
[
1
];
term_param
.
baud_rate
=
((
argc
>=
3
)
?
atoi
(
argv
[
2
])
:
Default_baud_rate
);
tid
=
rt_thread_create
(
"termtest"
,
termios_test_entry
,
(
void
*
)
&
term_param
,
512
,
RT_THREAD_PRIORITY_MAX
/
3
,
20
);
if
(
tid
!=
RT_NULL
)
rt_thread_startup
(
tid
);
return
0
;
}
#ifdef RT_USING_FINSH
#include <finsh.h>
#ifdef FINSH_USING_MSH
MSH_CMD_EXPORT_ALIAS
(
termios_test
,
termtest
,
e
.
g
:
termtest
/
dev
/
uart4
115200
);
#endif
/* FINSH_USING_MSH */
#endif
/* RT_USING_FINSH */
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