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Date:      Mon, 13 Jul 2009 03:41:02 +0200
From:      Patrick Lamaiziere <patfbsd@davenulle.org>
To:        Hans Petter Selasky <hselasky@c2i.net>
Cc:        freebsd-current@freebsd.org
Subject:   Re: ulpt problem (USB_ERR_IOERROR)
Message-ID:  <20090713034102.1362d27d@baby-jane.lamaiziere.net>
In-Reply-To: <200907120952.30158.hselasky@c2i.net>
References:  <20090703172600.1971111e@baby-jane.lamaiziere.net> <200907072039.27811.hselasky@c2i.net> <20090711232635.24b28f1f@baby-jane.lamaiziere.net> <200907120952.30158.hselasky@c2i.net>
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Le Sun, 12 Jul 2009 09:52:29 +0200,
Hans Petter Selasky <hselasky@c2i.net> a =E9crit :

> > But the printer hangs after the first job (the data led on the
> > printer stay on):
> > unlpt_open: using defrag write mode
> > ulpt_write_callback:237: state=3D0x0 actlen=3D0
> > ulpt_write_callback:237: state=3D0x1 actlen=3D32768
> > ulpt_write_callback:237: state=3D0x1 actlen=3D32768
> > ulpt_write_callback:237: state=3D0x1 actlen=3D32768
> >
>=20
> The prints look good.
>=20
> Did you restart/repower the printer, before trying to print?

Oh yes, several times.

> What document format is being used on /dev/ulpt? Maybe you have to
> use another format. Did you use the correct PPD file for your
> printer? I have a brother printer here which uses USB, and claims to
> support PCL 6, but whenever I print something in PCL 6, it's not
> recognized. I found out I had to download a special PPD file, and
> install foomatic-rip, for cups. Then it worked using the GDI protocol.

No the format is good, I've saved the file sent by cups to unlpt0
and tried this file several times on a 7.0-RELEASE=20
(cat file > /dev/unlpt0). It works fine on 7.X.=20
Now, i use this file on 8.0 to test without cups.

But there was a small problem with your previous patch in usb_dev.c:
static int
usb_write(struct cdev *dev, struct uio *uio, int ioflag)
{
...
                if (f->flag_have_fragment =3D=3D 0) {
                        USB_MBUF_RESET(m);      =20
                        io_len =3D m->cur_data_len;
                        pdata =3D m->cur_data_ptr;
                        if (io_len > uio->uio_resid)
                                io_len =3D uio->uio_resid;
                        m->cur_data_len =3D io_len;
                } else {
                        io_len =3D m->max_data_len - m->cur_data_len;
---                     pdata =3D m->cur_data_ptr + io_len;
+++                     pdata =3D m->cur_data_ptr + m->cur_data_len;


Now I've got some USB_ERR_STALLED errors but I'm able to print 3 or
4 times.

unlpt_open: using defrag write mode=20
ulpt_write_callback:237: state=3D0x0 actlen=3D29561=20
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_status_callback:369: error=3DUSB_ERR_TIMEOUT
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_status_callback:369: error=3DUSB_ERR_STALLED
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_write_callback:237: state=3D0x1 actlen=3D32768
ulpt_status_callback:369: error=3DUSB_ERR_STALLED
ulpt_write_callback:237: state=3D0x1 actlen=3D29561
ulpt_status_callback:369: error=3DUSB_ERR_STALLED
ulpt_status_callback:369: error=3DUSB_ERR_STALLED
(...)

It looks like there is a probem to get the status. FreeBSD 7.0 uses a
flag USBD_SHORT_XFER_OK, so I tried to add a flag .short_xfer_ok =3D 1
and to increase the timeout. But without luck.
[ULPT_INTR_DT_RD] =3D { .type =3D UE_CONTROL,
                .endpoint =3D 0x00,       /* Control pipe */
                .direction =3D UE_DIR_ANY,
                .bufsize =3D sizeof(struct usb_device_request) + 1,
	        .flags =3D {.short_xfer_ok =3D 1},
                .callback =3D &ulpt_status_callback,
                .timeout =3D 5000,        /* 5 second */
        },

Thanks.

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