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  1. 13 10月, 2007 12 次提交
    • A
      USB: avoid using urb->pipe in usbcore · 5e60a161
      由 Alan Stern 提交于 
      This patch (as946) eliminates many of the uses of urb->pipe in
usbcore.  Unfortunately there will have to be a significant API
change, affecting all USB drivers, before we can remove it entirely.
This patch contents itself with changing only the interface to
usb_buffer_map_sg() and friends: The pipe argument is replaced with a
direction flag.  That can be done easily because those routines get
used in only one place.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      5e60a161
    • A
      USB: add direction bit to urb->transfer_flags · fea34091
      由 Alan Stern 提交于 
      This patch (as945) adds a bit to urb->transfer_flags for recording the
direction of the URB.  The bit is set/cleared automatically in
usb_submit_urb() so drivers don't have to worry about it (although as
a result, it isn't valid until the URB has been submitted).  Inline
routines are added for easily checking an URB's direction.  They
replace calls to usb_pipein in the DMA-mapping parts of hcd.c.

For non-control endpoints, the direction is determined directly from
the endpoint descriptor.  However control endpoints are
bi-directional; for them the direction is determined from the
bRequestType byte and the wLength value in the setup packet.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      fea34091
    • A
      USB: add ep->enable · bdd016ba
      由 Alan Stern 提交于 
      This patch (as944) adds an explicit "enabled" field to the
usb_host_endpoint structure and uses it in place of the current
mechanism.  This is merely a time-space tradeoff; it makes checking
whether URBs may be submitted to an endpoint simpler.  The existing
mechanism is efficient when converting urb->pipe to an endpoint
pointer, but it's not so efficient when urb->ep is used instead.

As a side effect, the procedure for enabling an endpoint is now a
little more complicated.  The ad-hoc inline code in usb.c and hub.c
for enabling ep0 is now replaced with calls to usb_enable_endpoint,
which is no longer static.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      bdd016ba
    • A
      USB: add urb->ep · 5b653c79
      由 Alan Stern 提交于 
      This patch (as943) prepares the way for eliminating urb->pipe by
introducing an endpoint pointer into struct urb.  For now urb->ep
is set by usb_submit_urb() from the pipe value; eventually drivers
will set it themselves and we will remove urb->pipe completely.

The patch also adds new inline routines to retrieve an endpoint
descriptor's number and transfer type, essentially as replacements for
usb_pipeendpoint and usb_pipetype.

usb_submit_urb(), usb_hcd_submit_urb(), and usb_hcd_unlink_urb() are
converted to use the new field and new routines.  Other parts of
usbcore will be converted in later patches.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      5b653c79
    • A
      USB: Storage: usbat_check_status(): fix check-after-use · a96173af
      由 Adrian Bunk 提交于 
      The Coverity checker spotted that we have already oops'ed if "us"
was NULL.

Since "us" can't be NULL in the only caller this patch removes the
NULL check.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NMatthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      a96173af
    • D
      USB: usb_gadget.h whitespace fixes · efc9052e
      由 David Brownell 提交于 
      This just fixes some whitespace bugs in <linux/usb_gadget.h>,
mostly extraneous spaces where a single tab suffices.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      efc9052e
    • R
      USB: Remove dead references to "SAFE_SERIAL" CONFIG variables. · 9f705bde
      由 Robert P. J. Day 提交于 
      Remove the references to CONFIG_USBD_SAFE_SERIAL_{VENDOR,PRODUCT},
which aren't defined in any Kconfig file.
Signed-off-by: NRobert P. J. Day <rpjday@mindspring.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      9f705bde
    • M
      USB: OHCI handles more ZFMicro quirks · 89a0fd18
      由 Mike Nuss 提交于 
      The ZF Micro OHCI controller exhibits unexpected behavior that seems to be
related to high load.  Under certain conditions, the controller will
complete a TD, remove it from the endpoint's queue, and fail to add it to
the donelist. This causes the endpoint to appear to stop responding. Worse,
if the device is removed while in that state, OHCI will hang while waiting
for the orphaned TD to complete.  The situation is not recoverable without
rebooting.

This fix enhances the scope of the existing OHCI_QUIRK_ZFMICRO flag:

 1. A watchdog routine periodically scans the OHCI structures to check
    for orphaned TDs. In these cases the TD is taken back from the
    controller and completed normally.

 2. If a device is removed while the endpoint is hung but before the
    watchdog catches the situation, any outstanding TDs are taken back
    from the controller in the 'sanitize' phase.

The ohci-hcd driver used to print "INTR_SF lossage" in this situation;
this changes it to the universally accurate "ED unlink timeout".  Other
instances of this message presumably have different root causes.

Both this Compaq quirk and a NEC quirk are now properly compiled out for
non-PCI builds of this driver.
Signed-off-by: NMike Nuss <mike@terascala.com>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      89a0fd18
    • P
      usblp: Make use of URB_FREE_BUFFER · e8fa0ce6
      由 Pete Zaitcev 提交于 
      Employ the new API URB_FREE_BUFFER that we've got. There was talk of a combined
constructor for this case, but apparently it's not happening, so just set the
flag explicitly for now.
Signed-off-by: NPete Zaitcev <zaitcev@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      e8fa0ce6
    • P
      usblp: Implement the ENOSPC convention · 7f477358
      由 Pete Zaitcev 提交于 
      This patch implements a mode when a printer returns ENOSPC when it runs
out of paper. The default remains the same as before. An application which
wishes to use this function has to enable it explicitly with an ioctl
LPABORT.

This is done on a request by our (Fedora) CUPS guy, Tim Waugh. The API is
similar enough to the lp0's one that CUPS works with both (but see below),
but it's has some differences.

Most importantly, the abort mode is persistent in case of lp0: once tunelp
was run your cat fill blow up until you reboot or run tunelp again. For
usblp, I made it so the abort mode is only in effect as long as device
is open. This way you can mix and match CUPS and cat(1) freely and nothing
bad happens even if you run out of paper. It is also safer in the face
of any unexpected crashes.

It has to be noted that mixing LPABORT and O_NONBLOCK is not advised.
It probably does not do what you want: instead of returning -ENOSPC
it will always return -EAGAIN (because it would otherwise block while
waiting for the paper). Applications which use O_NONBLOCK should continue
to use LPGETSTATUS like before.

Finally, CUPS actually requires patching to take full advantage of this.
It has several components; those which invoke LPABORT work, but some of
them need the ioctl added. This is completely compatible, you can mix
old CUPS and new kernels or vice versa.
Signed-off-by: NPete Zaitcev <zaitcev@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      7f477358
    • J
      USB: Clean up duplicate includes in drivers/usb/ · ca337db6
      由 Jesper Juhl 提交于 
      This patch cleans up duplicate includes in
	drivers/usb/
Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      ca337db6
    • M
      USB: Remove unneeded pointer intf from speedtch_upload_firmware() · 011db815
      由 Micah Gruber 提交于 
      This trivial patch removes the unneeded pointer intf returned from
usb_ifnum_to_if(), which is never used. The check for NULL can be simply done
by if (!usb_ifnum_to_if(usb_dev, 2)).
Signed-off-by: NMicah Gruber <micah.gruber@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      011db815
  3. 12 10月, 2007 28 次提交