Date: Mon, 21 Sep 2009 13:29:10 -0400 From: Pierre-Luc Drouin <pldrouin@pldrouin.net> To: Hans Petter Selasky <hselasky@c2i.net> Cc: ed@freebsd.org, freebsd-usb@freebsd.org Subject: Re: usb/138659: uftdi driver broken in RELENG_8/CURRENT Message-ID: <4AB7B7E6.9070005@pldrouin.net> In-Reply-To: <200909211827.53014.hselasky@c2i.net> References: <4AB6DA79.7050209@pldrouin.net> <200909211827.53014.hselasky@c2i.net>
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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
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