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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Dear Jeferson,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>Well, let us try tty_driver
:-)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:18.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'>Put #include <bsp/tty_drv.h> in your include list before #include
<rtems/confdefs.h><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:18.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:18.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'>Rigth after </span></font><span lang=EN-US>CONFIGURE_NUMBER_OF_TERMIOS_PORTS
</span><font size=2 color=navy face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial;color:navy'>put the following:<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:54.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'>#define CONFIGURE_APPLICATION_EXTRA_DRIVERS \<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:54.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'> TTY1_DRIVER_TABLE_ENTRY, \<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:54.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'> TTY2_DRIVER_TABLE_ENTRY<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>Let me know if it works.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>Wendell.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:54.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'><o:p> </o:p></span></font></p>
<div>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>De:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Jeferson Luiz
Rodrigues Souza [mailto:jeferodrigues@gmail.com] <br>
<b><span style='font-weight:bold'>Enviada em:</span></b> terça-feira, 23 de
novembro de 2010 09:12<br>
<b><span style='font-weight:bold'>Para:</span></b> Wendell Pereira da Silva<br>
<b><span style='font-weight:bold'>Cc:</span></b> rtems-users@rtems.org<br>
<b><span style='font-weight:bold'>Assunto:</span></b> Re: Serial device access
with qemu!</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Hi Wendell, <br>
<br>
thanks for your reply.<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Tue, Nov 23, 2010 at 11:04 AM, Wendell Pereira da Silva <<a
href="mailto:wendell.silva@compsisnet.com.br">wendell.silva@compsisnet.com.br</a>>
wrote:<o:p></o:p></span></font></p>
<div link=blue vlink=purple>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Hi Jeferson,</span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-US style='font-size:10.0pt;
font-family:Arial;color:navy'>Note that “/dev/ttyS0” in the QEMU is
not the same path registered by the pc586 (pc386 variant) BSP.</span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-US style='font-size:10.0pt;
font-family:Arial;color:navy'>Do you have tried “/dev/ttyS1”?</span></font><o:p></o:p></p>
</div>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
Yes, I tried with "/dev/ttyS1" and the same problem happens. I also
tested the serial port in the host and it is ok. <br>
<br>
Any idea? <br>
<br>
Rest regards,<br>
Jeferson.<o:p></o:p></span></font></p>
</div>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;
margin-left:4.8pt;margin-right:0cm'>
<div link=blue vlink=purple>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-US style='font-size:10.0pt;
font-family:Arial;color:navy'> </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-US style='font-size:10.0pt;
font-family:Arial;color:navy'>Best regards,</span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-US style='font-size:10.0pt;
font-family:Arial;color:navy'> </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-US style='font-size:10.0pt;
font-family:Arial;color:navy'>Wendell.</span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span lang=EN-US style='font-size:10.0pt;
font-family:Arial;color:navy'> </span></font><o:p></o:p></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center>
</span></font></div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;font-weight:
bold'>De:</span></font></b><font size=2 face=Tahoma><span style='font-size:
10.0pt;font-family:Tahoma'> <a href="mailto:rtems-users-bounces@rtems.org"
target="_blank">rtems-users-bounces@rtems.org</a> [mailto:<a
href="mailto:rtems-users-bounces@rtems.org" target="_blank">rtems-users-bounces@rtems.org</a>]
<b><span style='font-weight:bold'>Em nome de </span></b>Jeferson Luiz Rodrigues
Souza<br>
<b><span style='font-weight:bold'>Enviada em:</span></b> terça-feira, 23 de
novembro de 2010 06:50<br>
<b><span style='font-weight:bold'>Para:</span></b> <a
href="mailto:rtems-users@rtems.org" target="_blank">rtems-users@rtems.org</a><br>
<b><span style='font-weight:bold'>Assunto:</span></b> Serial device access with
qemu!</span></font><o:p></o:p></p>
</div>
<div>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>Hi everyone,<br>
<br>
I am trying to access a serial port in RTEMS 4.9.4 using a pc586 bsp. However,
when I execute the application using qemu the code cannot open the device, and
the perror() function presents the following message: "No such file or
directory". It seems that RTEMS did not initialize a properly driver to
handle serial device. Is it right?<br>
<br>
The qemu command line is:<br>
<br>
sudo qemu -serial "/dev/ttyS0" -fda floppy.img -boot a<br>
<br>
I made a search in this list and I found references about serial port access
but nothing to help in my case. Could anyone help me or point me some
documentation about serial port access in RTEMS?<br>
<br>
The code used in the test is presented below. I do not have some experience
with RTEMS and I do not know the source of this problem.<br>
<br>
Thanks,<br>
jefecomp.<br>
<br>
<br>
</span></font><font size=2><span style='font-size:10.0pt'>#include
<signal.h><br>
#include <stdlib.h><br>
#include <stdio.h><br>
#include <pthread.h><br>
#include <uart.h><br>
#include <termios.h><br>
#include<sched.h><br>
#include <bsp.h><br>
#include <fcntl.h><br>
#include <sys/types.h><br>
#include <sys/stat.h><br>
<br>
#define CONFIGURE_INIT<br>
#include <rtems.h><br>
<br>
<br>
void *POSIX_Init();</span></font><br>
<br>
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER<br>
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER<br>
#define CONFIGURE_APPLICATIONS_NEEDS_RTC_DRIVER<br>
#define CONFIGURE_MICROSECONDS_PER_TICK 1000<br>
<br>
#define CONFIGURE_MAXIMUM_POSIX_THREADS 10<br>
#define CONFIGURE_MAXIMUM_POSIX_CONDITION_VARIABLES 10<br>
#define CONFIGURE_MAXIMUM_POSIX_MUTEXES 10<br>
#define CONFIGURE_MAXIMUM_POSIX_SEMAPHORES 10<br>
#define CONFIGURE_MAXIMUM_POSIX_TIMERS 10<br>
#define CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS 40<br>
#define CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES 10<br>
#define CONFIGURE_POSIX_INIT_THREAD_TABLE<br>
#define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 5<br>
#define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 3<br>
#include<rtems/confdefs.h><br>
<br>
void *POSIX_Init()<br>
{<br>
printf("Serial Port Test!!!\n");<br>
<br>
char buffer[255];<br>
int bytesRead;<br>
int serial_fp = open("/dev/ttyS0",O_RDONLY);<br>
<br>
printf("SERIAL_FP = %i\n",serial_fp);<br>
<br>
if(serial_fp < 0)<br>
{<br>
printf("FAILURE TO OPEN SERIAL
PORT\n");<br>
perror(serial_fp);<br>
exit(-1);<br>
}<br>
<br>
//write(serial_fp,buffer,strlen(buffer)+1);<br>
bytesRead = read(serial_fp, buffer, 255);<br>
<br>
<br>
if(bytesRead < 0)<br>
{<br>
printf("Problems in the read of
Serial Port");<br>
close(serial_fp);<br>
exit(1);<br>
}<br>
else<br>
buffer[bytesRead] = 0;<br>
<br>
<br>
printf(buffer);<br>
<br>
close(serial_fp);<br>
exit(0);<br>
}<o:p></o:p></p>
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</blockquote>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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