usb/138659: uftdi driver broken in RELENG_8/CURRENT
Hans Petter Selasky
hselasky at c2i.net
Mon Sep 21 17:32:03 UTC 2009
On Monday 21 September 2009 19:29:10 Pierre-Luc Drouin wrote:
> Hans Petter Selasky wrote:
> > On Monday 21 September 2009 03:44:25 Pierre-Luc Drouin wrote:
> >> Hi,
> >>
> >> I am also having troubles with the uftdi driver on 8.0-BETA4.
> >> I am trying to use a fan controller (mCubed bigNG) that uses a FT232BL
> >> chip and it does not seem to be responding on FreeBSD 8.0 while the same
> >> code works perfectly on Linux (I have not tried the code on RELENG_7 yet
> >> but I could install it if necessary).
> >>
> >> Here is the very simple code I am using for testing:
> >> #include <termios.h>
> >> #include <fcntl.h>
> >> #include <string.h>
> >> #include <unistd.h>
> >> #include <stdio.h>
> >>
> >> int main();
> >>
> >> #define DEV "/dev/ttyU0"
> >>
> >> #define TBAN_SER_SOURCE1 0x05 /* Primary source */
> >> #define TBAN_SER_SOURCE2 0x06 /* Alternative source (miniNG...)
> >> */
> >>
> >> #define TBAN_SER_REQUEST 0x36
> >>
> >> int main()
> >> {
> >> int fd;
> >> int result;
> >> struct termios oldtio, newtio;
> >> unsigned char buf[285];
> >>
> >> printf("Opening device\n");
> >> fd=open(DEV, O_RDWR | O_NOCTTY);
> >>
> >> if(fd<0) {
> >> perror(DEV);
> >> return 1;
> >> }
> >>
> >> result=tcgetattr(fd,&oldtio);
> >> if(result<0) {
> >> perror("tcgetattr");
> >> return 1;
> >> }
> >>
> >> memcpy(&newtio,&oldtio,sizeof(struct termios));
> >> newtio.c_cflag = B19200
> >>
> >> | CRTSCTS
> >> | CS8
> >> | CREAD;
> >>
> >> newtio.c_iflag = IGNPAR;
> >> newtio.c_oflag = 0;
> >> newtio.c_lflag = 0;
> >> newtio.c_cc[VMIN] = 1;
> >> newtio.c_cc[VTIME] = 0;
> >>
> >> result=tcflush(fd, TCIFLUSH);
> >> if(result<0) {
> >> perror("tcflush");
> >> return 1;
> >> }
> >>
> >> result=tcsetattr(fd,TCSANOW,&newtio);
> >> if(result<0) {
> >> perror("tcsetattr");
> >> return 1;
> >> }
> >>
> >> sleep(1);
> >>
> >> printf("Performing initial query\n");
> >> buf[0]=TBAN_SER_SOURCE1;
> >> buf[1]=TBAN_SER_REQUEST;
> >>
> >> printf("Requesting status\n");
> >> result=write(fd,buf,2);
> >> if(result<0) {
> >> perror("write");
> >> return 1;
> >> }
> >>
> >> sleep(1);
> >>
> >> printf("Reading status\n");
> >> result=read(fd,buf,32);
> >> if(result<0) {
> >> perror("read");
> >> return 1;
> >> }
> >>
> >> result=tcsetattr(fd,TCSANOW,&oldtio);
> >> if(result<0) {
> >> perror("tcsetattr");
> >> return 1;
> >> }
> >>
> >> result=close(fd);
> >> if(result<0) {
> >> perror("close");
> >> return 1;
> >> }
> >> return 0;
> >> }
> >>
> >> It hangs while reading independently of the number of bits I am reading.
> >>
> >> Here is the output from dmesg when I load the uftdi module:
> >> Sep 20 21:31:31 ldaemon kernel: uftdi0: <USB - Serial> on usbus6
> >> Sep 20 21:31:31 ldaemon kernel: ucom_attach_tty:317: tp =
> >> 0xffffff001f12b400, unit = 0 Sep 20 21:31:31 ldaemon kernel:
> >> ucom_attach_tty:346: ttycreate: U0 Sep 20 21:31:34 ldaemon root: Unknown
> >> USB device: vendor 0x051d product 0x0002 bus uhub0
> >>
> >> Here is the output in /var/log/messages when I enable the debug output
> >> for ucom and uftdi: Sep 20 21:33:30 ldaemon kernel: ucom_open:554: tp =
> >> 0xffffff001f12b400 Sep 20 21:33:30 ldaemon kernel: ucom_dtr:827: onoff =
> >> 1 Sep 20 21:33:30 ldaemon kernel: ucom_line_state:799: on=0x01, off=0x00
> >> Sep 20 21:33:30 ldaemon kernel: ucom_rts:838: onoff = 1
> >> Sep 20 21:33:30 ldaemon kernel: ucom_line_state:799: on=0x02, off=0x00
> >> Sep 20 21:33:30 ldaemon kernel: ucom_break:816: onoff = 0
> >> Sep 20 21:33:30 ldaemon kernel: ucom_line_state:799: on=0x00, off=0x04
> >> Sep 20 21:33:30 ldaemon kernel: ucom_status_change:901:
> >> Sep 20 21:33:30 ldaemon kernel: ucom_param:950: sc = 0xffffff001f12ac58
> >> Sep 20 21:33:30 ldaemon kernel: uftdi_pre_param:653:
> >> Sep 20 21:33:30 ldaemon kernel: ucom_dtr:827: onoff = 1
> >> Sep 20 21:33:30 ldaemon kernel: ucom_line_state:799: on=0x01, off=0x00
> >> Sep 20 21:33:30 ldaemon kernel: ucom_rts:838: onoff = 1
> >> Sep 20 21:33:30 ldaemon kernel: ucom_line_state:799: on=0x02, off=0x00
> >> Sep 20 21:33:30 ldaemon kernel: ucom_cfg_open:520:
> >> Sep 20 21:33:30 ldaemon kernel: uftdi_cfg_open:354:
> >> Sep 20 21:33:30 ldaemon kernel: uftdi_read_callback:459: status change
> >> msr=0xf0 (0x00) lsr=0x60 (0x00) Sep 20 21:33:30 ldaemon kernel:
> >> ucom_status_change:901:
> >> Sep 20 21:33:30 ldaemon kernel: uftdi_cfg_get_status:705: msr=0xf0
> >> lsr=0x60 Sep 20 21:33:30 ldaemon kernel: ucom_cfg_status_change:887: DCD
> >> changed to 1 Sep 20 21:33:30 ldaemon kernel: uftdi_cfg_param:672:
> >> Sep 20 21:33:30 ldaemon kernel: ucom_ioctl:653: cmd = 0x402c7413
> >> Sep 20 21:33:30 ldaemon kernel: ucom_ioctl:653: cmd = 0x80047410
> >> Sep 20 21:33:30 ldaemon kernel: ucom_ioctl:653: cmd = 0x802c7414
> >> Sep 20 21:33:30 ldaemon kernel: ucom_param:950: sc = 0xffffff001f12ac58
> >> Sep 20 21:33:30 ldaemon kernel: uftdi_pre_param:653:
> >> Sep 20 21:33:30 ldaemon kernel: uftdi_cfg_get_status:705: msr=0xf0
> >> lsr=0x60 Sep 20 21:33:30 ldaemon kernel: uftdi_cfg_param:672:
> >> Sep 20 21:33:30 ldaemon kernel: ucom_get_data:1064: cnt=0
> >> Sep 20 21:33:31 ldaemon kernel: ucom_ioctl:653: cmd = 0x80047410
> >> Sep 20 21:33:32 ldaemon kernel: ucom_outwakeup:1009: sc =
> >> 0xffffff001f12ac58 Sep 20 21:33:32 ldaemon kernel: ucom_get_data:1064:
> >> cnt=2
> >> Sep 20 21:33:32 ldaemon kernel: ucom_get_data:1064: cnt=0
> >>
> >> I really need to get this working so I am ready to test things as much
> >> as I can...
> >
> > Hi,
> >
> > You need to set raw mode for the TTY device I think. Maybe Ed can give
> > you the function name you need to call to do that?
> >
> > --HPS
>
> Do I need to do something like that?
> ioctl(fileno(stdin), TIOCGETP, &tty_org);
> tty = tty_org;
>
> /* set terminal to raw mode ... */
> tty.sg_flags |= CRMOD;
> tty.sg_flags &= ~ECHO;
> tty.sg_flags &= ~XTABS;
> tty.sg_flags |= RAW;
>
> Thanks!
> Pierre-Luc Drouin
Hi,
You need to call this function:
void
cfmakeraw(struct termios *t);
--HPS
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