Commit Graph

922 Commits

Author SHA1 Message Date
Alan Stern
ec6d67e39f USB: EHCI: report actual_length for iso transfers
This patch (as1259b) makes ehci-hcd return the total number of bytes
transferred in urb->actual_length for Isochronous transfers.
Until now, the actual_length value was unaccountably left at 0.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:40 -07:00
Alan Stern
ba516de332 USB: EHCI: check for STALL before other errors
This patch (as1257) revises the way ehci-hcd detects STALLs.  The
logic is a little peculiar because there's no hardware status bit
specifically meant to indicate a STALL.  You just have to guess that a
STALL was received if the BABBLE bit (which is fatal) isn't set and
the transfer stopped before all its retries were used up.

The existing code doesn't do this properly, because it tests for MMF
(Missed MicroFrame) and DBE (Data Buffer Error) before testing the
retry counter.  Thus, if a transaction gets either MMF or DBE the
corresponding flag is set and the transaction is retried.  If the
second attempt receives a STALL then -EPIPE is the correct return
value.  But the existing code would see the MMF or DBE flag instead
and return -EPROTO, -ENOSR, or -ECOMM.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:39 -07:00
Alan Stern
914b701280 USB: EHCI: use the new clear_tt_buffer interface
This patch (as1256) changes ehci-hcd and all the other drivers in the
EHCI family to make use of the new clear_tt_buffer callbacks.  When a
Clear-TT-Buffer request is in progress for a QH, the QH is not allowed
to be linked into the async schedule until the request is finished.
At that time, if there are any URBs queued for the QH, it is linked
into the async schedule.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:39 -07:00
Alan Stern
cb88a1b887 USB: fix the clear_tt_buffer interface
This patch (as1255) updates the interface for calling
usb_hub_clear_tt_buffer().  Even the name of the function is changed!

When an async URB (i.e., Control or Bulk) going through a high-speed
hub to a non-high-speed device is cancelled or fails, the hub's
Transaction Translator buffer may be left busy still trying to
complete the transaction.  The buffer has to be cleared; that's what
usb_hub_clear_tt_buffer() does.

It isn't safe to send any more URBs to the same endpoint until the TT
buffer is fully clear.  Therefore the HCD needs to be told when the
Clear-TT-Buffer request has finished.  This patch adds a callback
method to struct hc_driver for that purpose, and makes the hub driver
invoke the callback at the proper time.

The patch also changes a couple of names; "hub_tt_kevent" and
"tt.kevent" now look rather antiquated.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:38 -07:00
Arnd Bergmann
45e83889eb USB: buildfix ppc randconfig
We could just make the USB_OHCI_HCD_PPC_OF option implicit
and selected only if at least one of USB_OHCI_HCD_PPC_OF_BE
and USB_OHCI_HCD_PPC_OF_LE are set.

[ dbrownell@users.sourceforge.net: fix patch manglation and dependencies ]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Subrata Modak <subrata@linux.vnet.ibm.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
Mike Frysinger
4198e4f7e0 USB: isp1760: use __devexit_p() for remove function
The isp1760_plat_remove function is declared with __devexit, so the
.remove assignment needs to be wrapped with __devexit_p().

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Alan Stern
a455212d19 USB: EHCI: update toggle state for linked QHs
This is an update to the "usb-ehci-update-toggle-state-for-linked-qhs"
patch.  Since an HCD's endpoint_reset method can be called in
interrupt context, it mustn't assume that interrupts are enabled or
that it can sleep.

So we revert to the original way of refreshing QHs' toggle bits.  Now
the endpoint_reset method merely clears the toggle flag in the device
structure (as was done before) and starts an async QH unlink.  When the
QH is linked again, after the unlink finishes and an URB is queued,
the qh_refresh() routine will update the QH's toggle bit.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: David <david@unsolicited.net>
CC: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Roel Kluin
9525dcb30f USB: fhci: mutually exclusive port_status
FHCI_PORT_DISABLED, -LOW and -FULL are mutually exclusive as status.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Alexey Dobriyan
405f55712d headers: smp_lock.h redux
* Remove smp_lock.h from files which don't need it (including some headers!)
* Add smp_lock.h to files which do need it
* Make smp_lock.h include conditional in hardirq.h
  It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT

  This will make hardirq.h inclusion cheaper for every PREEMPT=n config
  (which includes allmodconfig/allyesconfig, BTW)

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-12 12:22:34 -07:00
Magnus Damm
64614e66fb usb: allow sh7724 to enable on-chip r8a66597
The sh7724 processor has two on-chip r8a66597 blocks, so add
it to the list of processors for SUPERH_ON_CHIP_R8A66597.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-05 00:23:50 +09:00
Benjamin Herrenschmidt
4b337c5f24 Merge commit 'origin/master' into next 2009-06-18 11:16:55 +10:00
Linus Torvalds
e1f5b94fd0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (143 commits)
  USB: xhci depends on PCI.
  USB: xhci: Add Makefile, MAINTAINERS, and Kconfig entries.
  USB: xhci: Respect critical sections.
  USB: xHCI: Fix interrupt moderation.
  USB: xhci: Remove packed attribute from structures.
  usb; xhci: Fix TRB offset calculations.
  USB: xhci: replace if-elseif-else with switch-case
  USB: xhci: Make xhci-mem.c include linux/dmapool.h
  USB: xhci: drop spinlock in xhci_urb_enqueue() error path.
  USB: Change names of SuperSpeed ep companion descriptor structs.
  USB: xhci: Avoid compiler reordering in Link TRB giveback.
  USB: xhci: Clean up xhci_irq() function.
  USB: xhci: Avoid global namespace pollution.
  USB: xhci: Fix Link TRB handoff bit twiddling.
  USB: xhci: Fix register write order.
  USB: xhci: fix some compiler warnings in xhci.h
  USB: xhci: fix lots of compiler warnings.
  USB: xhci: use xhci_handle_event instead of handle_event
  USB: xhci: URB cancellation support.
  USB: xhci: Scatter gather list support for bulk transfers.
  ...
2009-06-16 13:06:10 -07:00
Paul Mundt
1b6ed69f97 USB: xhci depends on PCI.
While it looks like xhci was written with both PCI and non-PCI in mind,
apparently only the former has seen any testing. xhci-mem.o can be "fixed"
with a linux/dmapool.h include, but there are still parts of the code that
make use of struct pci_dev directly. So, at least more work is needed before
this can be turned on for non-PCI builds:

  CC      drivers/usb/host/xhci-mem.o
drivers/usb/host/xhci-mem.c: In function 'xhci_segment_alloc':
drivers/usb/host/xhci-mem.c:45: error: implicit declaration of function 'dma_pool_alloc'
drivers/usb/host/xhci-mem.c:45: warning: assignment makes pointer from integer without a cast
drivers/usb/host/xhci-mem.c: In function 'xhci_segment_free':
drivers/usb/host/xhci-mem.c:67: error: implicit declaration of function 'dma_pool_free'
drivers/usb/host/xhci-mem.c: In function 'xhci_alloc_virt_device':
drivers/usb/host/xhci-mem.c:239: warning: assignment makes pointer from integer without a cast
drivers/usb/host/xhci-mem.c:248: warning: assignment makes pointer from integer without a cast
drivers/usb/host/xhci-mem.c: In function 'xhci_mem_cleanup':
drivers/usb/host/xhci-mem.c:578: error: implicit declaration of function 'dma_pool_destroy'
drivers/usb/host/xhci-mem.c: In function 'xhci_mem_init':
drivers/usb/host/xhci-mem.c:657: error: implicit declaration of function 'dma_pool_create'
drivers/usb/host/xhci-mem.c:658: warning: assignment makes pointer from integer without a cast
drivers/usb/host/xhci-mem.c:663: warning: assignment makes pointer from integer without a cast
make[3]: *** [drivers/usb/host/xhci-mem.o] Error 1

  CC      drivers/usb/host/xhci-pci.o
drivers/usb/host/xhci-pci.c: In function 'xhci_pci_reinit':
drivers/usb/host/xhci-pci.c:39: error: implicit declaration of function 'pci_set_mwi'
drivers/usb/host/xhci-pci.c: At top level:
drivers/usb/host/xhci-pci.c:151: error: 'usb_hcd_pci_probe' undeclared here (not in a function)
drivers/usb/host/xhci-pci.c:152: error: 'usb_hcd_pci_remove' undeclared here (not in a function)
drivers/usb/host/xhci-pci.c:155: error: 'usb_hcd_pci_shutdown' undeclared here (not in a function)
drivers/usb/host/xhci-pci.c:159: warning: function declaration isn't a prototype
drivers/usb/host/xhci-pci.c:164: warning: function declaration isn't a prototype
make[3]: *** [drivers/usb/host/xhci-pci.o] Error 1

Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:51 -07:00
Sarah Sharp
eb6bab138d USB: xhci: Add Makefile, MAINTAINERS, and Kconfig entries.
Add Makefile and Kconfig entries for the xHCI host controller driver.
List Sarah Sharp as the maintainer for the xHCI driver.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:51 -07:00
Sarah Sharp
f88ba78d9a USB: xhci: Respect critical sections.
Narrow down time spent holding the xHCI spinlock so that it's only used to
protect the xHCI rings, not as mutual exclusion.  Stop allocating memory
while holding the spinlock and calling xhci_alloc_virt_device() and
xhci_endpoint_init().

The USB core should have locking in it to prevent device state to be
manipulated by more than one kernel thread.  E.g. you can't free a device
while you're in the middle of setting a new configuration.  So removing
the locks from the sections where xhci_alloc_dev() and
xhci_reset_bandwidth() touch xHCI's representation of the device should be
OK.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:51 -07:00
Sarah Sharp
a4d8830226 USB: xHCI: Fix interrupt moderation.
Mask off the lower 16 bits of the interrupt control register, instead of
masking off the upper 16 bits.  The interrupt moderation interval field is
the lower 16 bytes, and is set to 0x4000 (1ms) by default.  The previous
code was adding 40 us to the default value, instead of setting it to 40
us.  This makes performance really bad.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:51 -07:00
Sarah Sharp
9844197310 USB: xhci: Remove packed attribute from structures.
The packed attribute allows gcc to muck with the alignment of data
structures, which may lead to byte-wise writes that break atomicity of
writes.  Packed should only be used when the compile may add undesired
padding to the structure.  Each element of the structure will be aligned
by C based on its size and the size of the elements around it.  E.g. a u64
would be aligned on an 8 byte boundary, the next u32 would be aligned on a
four byte boundary, etc.

Since most of the xHCI structures contain only u32 bit values, removing
the packed attribute for them should be harmless.  (A future patch will
change some of the twin 32-bit address fields to one 64-bit field, but all
those places have an even number of 32-bit fields before them, so the
alignment should be correct.)  Add BUILD_BUG_ON statements to check that
the compiler doesn't add padding to the data structures that have a
hardware-defined layout.

While we're modifying the registers, change the name of intr_reg to
xhci_intr_reg to avoid global conflicts.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:51 -07:00
Sarah Sharp
6071d8363b usb; xhci: Fix TRB offset calculations.
Greg KH introduced a bug into xhci_trb_virt_to_dma() when he changed the
type of offset to dma_addr_t from unsigned int and dropped the casts to
unsigned int around the virtual address pointer subtraction.

trb and seg->trbs are both valid pointers to virtual addresses, so the
compiler will mod the subtraction by the size of union trb (16 bytes).
segment_offset is an unsigned long, which is guaranteed to be at least as
big as a void *.

Drop the void * casts in the first if statement because trb and seg->trbs
are both pointers of the same type (pointers to union trb).

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:51 -07:00
Sarah Sharp
527c6d7f18 USB: xhci: Make xhci-mem.c include linux/dmapool.h
xhci-mem.c includes calls to dma_pool_alloc() and other functions defined
in linux/dmapool.h.  Make sure to include that header file.

Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:50 -07:00
Sarah Sharp
c7959fb265 USB: xhci: drop spinlock in xhci_urb_enqueue() error path.
Make sure the error path in xhci_urb_enqueue() releases the spinlock
before it returns.  Reported by Oliver in
	http://marc.info/?l=linux-usb&m=124091637311832&w=2

Reported-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:50 -07:00
Sarah Sharp
f0058c6278 USB: Change names of SuperSpeed ep companion descriptor structs.
Differentiate between SuperSpeed endpoint companion descriptor and the
wireless USB endpoint companion descriptor.  Make all structure names for
this descriptor have "ss" (SuperSpeed) in them.  David Vrabel asked for
this change in http://marc.info/?l=linux-usb&m=124091465109367&w=2

Reported-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:50 -07:00
Sarah Sharp
b7116ebca4 USB: xhci: Avoid compiler reordering in Link TRB giveback.
Force the compiler to write the cycle bit of the Link TRB last.  This
ensures that the hardware doesn't think it owns the Link TRB before we set
the chain bit.  Reported by Oliver in this thread:
	http://marc.info/?l=linux-usb&m=124091532410219&w=2

Reported-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:50 -07:00
Sarah Sharp
c96a2b81f3 USB: xhci: Clean up xhci_irq() function.
Drop spinlock in xhci_irq() error path.
This fixes the issue reported by Oliver Neukum on this thread:
	http://marc.info/?l=linux-usb&m=124090924401444&w=2

Remove unnecessary register read reported by Viral Mehta:
	http://marc.info/?l=linux-usb&m=124091326007398&w=2

Reported-by: Oliver Neukum <oliver@neukum.org>
Reported-by: Viral Mehta <viral.mehta@einfochips.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:50 -07:00
Sarah Sharp
23e3be113f USB: xhci: Avoid global namespace pollution.
Make all globally visible functions start with xhci_ and mark functions as
static if they're only called within the same C file.  Fix some long lines
while we're at it.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:50 -07:00
Sarah Sharp
06e7a1487b USB: xhci: Fix Link TRB handoff bit twiddling.
Make sure to preserve all bits *except* the TRB_CHAIN bit when giving a
Link TRB to the hardware.  We need to save things like TRB type and the
toggle bit in the control dword.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:50 -07:00
Sarah Sharp
3841d56ebb USB: xhci: Fix register write order.
The 0.95 xHCI spec says that if the xHCI HW support 64-bit addressing, you
must write the whole 64-bit address as one atomic operation, or write the
low 32 bits, and then the high 32 bits.  I had the register writes
swapped in some places.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:50 -07:00
Greg Kroah-Hartman
045f123d9c USB: xhci: fix some compiler warnings in xhci.h
This fixes the warning:
drivers/usb/host/xhci.h:1083: warning: passing argument 1 of ‘xhci_to_hcd’ discards qualifiers from pointer target type
drivers/usb/host/xhci.h:1083: warning: passing argument 1 of ‘xhci_to_hcd’ discards qualifiers from pointer target type

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:50 -07:00
Greg Kroah-Hartman
700e2052c6 USB: xhci: fix lots of compiler warnings.
Turns out someone never built this code on a 64bit platform.

Someone owes me a beer...

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:50 -07:00
Stephen Rothwell
b7258a4aba USB: xhci: use xhci_handle_event instead of handle_event
The former is way to generic for a global symbol.

Fixes this build error:

drivers/usb/built-in.o: In function `.handle_event': (.text+0x67dd0): multiple definition of `.handle_event'
drivers/pcmcia/built-in.o:(.text+0xcfcc): first defined here
drivers/usb/built-in.o: In function `handle_event': (.opd+0x5bc8): multiple definition of `handle_event'
drivers/pcmcia/built-in.o:(.opd+0xed0): first defined here

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:50 -07:00
Sarah Sharp
ae63674714 USB: xhci: URB cancellation support.
Add URB cancellation support to the xHCI host controller driver.  This
currently supports cancellation for endpoints that do not have streams
enabled.

An URB is represented by a number of Transaction Request Buffers (TRBs),
that are chained together to make one (or more) Transaction Descriptors
(TDs) on an endpoint ring.  The ring is comprised of contiguous segments,
linked together with Link TRBs (which may or may not be chained into a TD).

To cancel an URB, we must stop the endpoint ring, make the hardware skip
over the TDs in the URB (either by turning them into No-op TDs, or by
moving the hardware's ring dequeue pointer past the last TRB in the last
TD), and then restart the ring.

There are times when we must drop the xHCI lock during this process, like
when we need to complete cancelled URBs.  We must ensure that additional
URBs can be marked as cancelled, and that new URBs can be enqueued (since
the URB completion handlers can do either).  The new endpoint ring
variables cancels_pending and state (which can only be modified while
holding the xHCI lock) ensure that future cancellation and enqueueing do
not interrupt any pending cancellation code.

To facilitate cancellation, we must keep track of the starting ring
segment, first TRB, and last TRB for each URB.  We also need to keep track
of the list of TDs that have been marked as cancelled, separate from the
list of TDs that are queued for this endpoint.  The new variables and
cancellation list are stored in the xhci_td structure.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:49 -07:00
Sarah Sharp
8a96c05228 USB: xhci: Scatter gather list support for bulk transfers.
Add support for bulk URBs that pass scatter gather lists to xHCI.  This allows
xHCI to more efficiently enqueue these transfers, and allows the host
controller to take advantage of USB 3.0 "bursts" for bulk endpoints.

Use requested length to calculate the number of TRBs needed for a scatter gather
list transfer, instead of using the number of sglist entries.  The application
can pass down a scatter gather list that is bigger than it needs for the
requested transfer.

Scatter gather entries can cross 64KB boundaries, so be careful to setup TRBs
such that no buffer crosses a 64KB boundary.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:49 -07:00
Sarah Sharp
b10de14211 USB: xhci: Bulk transfer support
Allow device drivers to submit URBs to bulk endpoints on devices under an
xHCI host controller.  Share code between the control and bulk enqueueing
functions when it makes sense.

To get the best performance out of bulk transfers, SuperSpeed devices must
have the bMaxBurst size copied from their endpoint companion controller
into the xHCI device context.  This allows the host controller to "burst"
up to 16 packets before it has to wait for the device to acknowledge the
first packet.

The buffers in Transfer Request Blocks (TRBs) can cross page boundaries,
but they cannot cross 64KB boundaries.  The buffer must be broken into
multiple TRBs if a 64KB boundary is crossed.

The sum of buffer lengths in all the TRBs in a Transfer Descriptor (TD)
cannot exceed 64MB.  To work around this, the enqueueing code must enqueue
multiple TDs.  The transfer event handler may incorrectly give back the
URB in this case, if it gets a transfer event that points somewhere in the
first TD.  FIXME later.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:49 -07:00
Sarah Sharp
f94e018631 USB: xhci: Bandwidth allocation support
Since the xHCI host controller hardware (xHC) has an internal schedule, it
needs a better representation of what devices are consuming bandwidth on
the bus.  Each device is represented by a device context, with data about
the device, endpoints, and pointers to each endpoint ring.

We need to update the endpoint information for a device context before a
new configuration or alternate interface setting is selected.  We setup an
input device context with modified endpoint information and newly
allocated endpoint rings, and then submit a Configure Endpoint Command to
the hardware.

The host controller can reject the new configuration if it exceeds the bus
bandwidth, or the host controller doesn't have enough internal resources
for the configuration.  If the command fails, we still have the older
device context with the previous configuration.  If the command succeeds,
we free the old endpoint rings.

The root hub isn't a real device, so always say yes to any bandwidth
changes for it.

The USB core will enable, disable, and then enable endpoint 0 several
times during the initialization sequence.  The device will always have an
endpoint ring for endpoint 0 and bandwidth allocated for that, unless the
device is disconnected or gets a SetAddress 0 request.  So we don't pay
attention for when xhci_check_bandwidth() is called for a re-add of
endpoint 0.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:49 -07:00
Sarah Sharp
d0e96f5a71 USB: xhci: Control transfer support.
Allow device drivers to enqueue URBs to control endpoints on devices under
an xHCI host controller.  Each control transfer is represented by a
series of Transfer Descriptors (TDs) written to an endpoint ring.  There
is one TD for the Setup phase, (optionally) one TD for the Data phase, and
one TD for the Status phase.

Enqueue these TDs onto the endpoint ring that represents the control
endpoint.  The host controller hardware will return an event on the event
ring that points to the (DMA) address of one of the TDs on the endpoint
ring.  If the transfer was successful, the transfer event TRB will have a
completion code of success, and it will point to the Status phase TD.
Anything else is considered an error.

This should work for control endpoints besides the default endpoint, but
that hasn't been tested.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:49 -07:00
Sarah Sharp
3ffbba9511 USB: xhci: Allocate and address USB devices
xHCI needs to get a "Slot ID" from the host controller and allocate other
data structures for every USB device.  Make usb_alloc_dev() and
usb_release_dev() allocate and free these device structures.  After
setting up the xHC device structures, usb_alloc_dev() must wait for the
hardware to respond to an Enable Slot command.  usb_alloc_dev() fires off
a Disable Slot command and does not wait for it to complete.

When the USB core wants to choose an address for the device, the xHCI
driver must issue a Set Address command and wait for an event for that
command.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:49 -07:00
Sarah Sharp
0f2a79300a USB: xhci: Root hub support.
Add functionality for getting port status and hub descriptor for xHCI root
hubs.  This is WIP because the USB 3.0 hub descriptor is different from
the USB 2.0 hub descriptor.  For now, we lie about the root hub descriptor
because the changes won't effect how the core talks to the root hub.
Later we will need to add the USB 3.0 hub descriptor for real hubs, and
this code might change.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:48 -07:00
Sarah Sharp
7f84eef0da USB: xhci: No-op command queueing and irq handler.
xHCI host controllers can optionally implement a no-op test.  This
simple test ensures the OS has correctly setup all basic data structures
and can correctly respond to interrupts from the host controller
hardware.

There are two rings exercised by the no-op test:  the command ring, and
the event ring.

The host controller driver writes a no-op command TRB to the command
ring, and rings the doorbell for the command ring (the first entry in
the doorbell array).  The hardware receives this event, places a command
completion event on the event ring, and fires an interrupt.

The host controller driver sees the interrupt, and checks the event ring
for TRBs it can process, and sees the command completion event.  (See
the rules in xhci-ring.c for who "owns" a TRB.  This is a simplified set
of rules, and may not contain all the details that are in the xHCI 0.95
spec.)

A timer fires every 60 seconds to debug the state of the hardware and
command and event rings.  This timer only runs if
CONFIG_USB_XHCI_HCD_DEBUGGING is 'y'.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:48 -07:00
Sarah Sharp
a74588f946 USB: xhci: Device context array allocation.
Instead of keeping a "frame list" like older host controllers, the xHCI
host controller keeps internal representations of the USB devices, with a
transfer ring per endpoint.  The host controller queues Transfer Request
Blocks (TRBs) to the endpoint ring, and then "rings the doorbell" for that
device.  The host controller processes the transfer, places a transfer
completion event on the event ring, and interrupts the system.

The device context base address array must be allocated by the xHCI host
controller driver, along with the device contexts it points to.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:48 -07:00
Sarah Sharp
0ebbab3742 USB: xhci: Ring allocation and initialization.
Allocate basic xHCI host controller data structures.  For every xHC, there
is a command ring, an event ring, and a doorbell array.

The doorbell array is used to notify the host controller that work has
been enqueued onto one of the rings.  The host controller driver enqueues
commands on the command ring.  The HW enqueues command completion events
on the event ring and interrupts the system (currently using PCI
interrupts, although the xHCI HW will use MSI interrupts eventually).

All rings and the doorbell array must be allocated by the xHCI host
controller driver.

Each ring is comprised of one or more segments, which consists of 16-byte
Transfer Request Blocks (TRBs) that can be chained to form a Transfer
Descriptor (TD) that represents a multiple-buffer request.  Segments are
linked into a ring using Link TRBs, which means they are dynamically
growable.

The producer of the ring enqueues a TD by writing one or more TRBs in the
ring and toggling the TRB cycle bit for each TRB.  The consumer knows it
can process the TRB when the cycle bit matches its internal consumer cycle
state for the ring.  The consumer cycle state is toggled an odd amount of
times in the ring.

An example ring (a ring must have a minimum of 16 TRBs on it, but that's
too big to draw in ASCII art):

              chain  cycle
               bit    bit
 ------------------------
| TD A TRB 1 |  1  |  1  |<-------------  <-- consumer dequeue ptr
 ------------------------               |     consumer cycle state = 1
| TD A TRB 2 |  1  |  1  |              |
 ------------------------               |
| TD A TRB 3 |  0  |  1  |  segment 1   |
 ------------------------               |
| TD B TRB 1 |  1  |  1  |              |
 ------------------------               |
| TD B TRB 2 |  0  |  1  |              |
 ------------------------               |
| Link TRB   |  0  |  1  |-----         |
 ------------------------     |         |
                              |         |
              chain  cycle    |         |
               bit    bit     |         |
 ------------------------     |         |
| TD C TRB 1 |  0  |  1  |<----         |
 ------------------------               |
| TD D TRB 1 |  1  |  1  |              |
 ------------------------               |
| TD D TRB 2 |  1  |  1  |   segment 2  |
 ------------------------               |
| TD D TRB 3 |  1  |  1  |              |
 ------------------------               |
| TD D TRB 4 |  1  |  1  |              |
 ------------------------               |
| Link TRB   |  1  |  1  |-----         |
 ------------------------     |         |
                              |         |
              chain  cycle    |         |
               bit    bit     |         |
 ------------------------     |         |
| TD D TRB 5 |  1  |  1  |<----         |
 ------------------------               |
| TD D TRB 6 |  0  |  1  |              |
 ------------------------               |
| TD E TRB 1 |  0  |  1  |   segment 3  |
 ------------------------               |
|            |  0  |  0  |              | <-- producer enqueue ptr
 ------------------------               |
|            |  0  |  0  |              |
 ------------------------               |
| Link TRB   |  0  |  0  |---------------
 ------------------------

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:48 -07:00
Sarah Sharp
66d4eadd8d USB: xhci: BIOS handoff and HW initialization.
Add PCI initialization code to take control of the xHCI host controller
away from the BIOS, halt, and reset the host controller.  The xHCI spec
says that BIOSes must give up the host controller within 5 seconds.

Add some host controller glue functions to handle hardware initialization
and memory allocation for the host controller.  The current xHCI
prototypes use PCI interrupts, but the xHCI spec requires MSI-X
interrupts.  Add code to support MSI-X interrupts, but use the PCI
interrupts for now.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:48 -07:00
Sarah Sharp
74c6874199 USB: xhci: Support xHCI host controllers and USB 3.0 devices.
This is the first of many patches to add support for USB 3.0 devices and
the hardware that implements the eXtensible Host Controller Interface
(xHCI) 0.95 specification.  This specification is not yet publicly
available, but companies can receive a copy by becoming an xHCI
Contributor (see http://www.intel.com/technology/usb/xhcispec.htm).

No xHCI hardware has made it onto the market yet, but these patches have
been tested under the Fresco Logic host controller prototype.

This patch adds the xHCI register sets, which are grouped into five sets:
 - Generic PCI registers
 - Host controller "capabilities" registers (cap_regs) short
 - Host controller "operational" registers (op_regs)
 - Host controller "runtime" registers (run_regs)
 - Host controller "doorbell" registers

These some of these registers may be virtualized if the Linux driver is
running under a VM.  Virtualization has not been tested for this patch.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:48 -07:00
Alan Stern
b18ffd49e8 USB: EHCI: update toggle state for linked QHs
This patch (as1245) fixes a bug in ehci-hcd.  When an URB is queued
for an endpoint whose QH is already in the LINKED state, the QH
doesn't get refreshed.  As a result, if usb_clear_halt() was called
during the time that the QH was linked but idle, the data toggle value
in the QH doesn't get reset.

The symptom is that after a clear_halt, data gets lost and transfers
time out.  This problem is starting to show up now because the
"ehci-hcd unlink speedups" patch causes QHs with no queued URBs to
remain linked for a suitable time.

The patch utilizes the new endpoint_reset mechanism to fix the
problem.  When an endpoint is reset, the new method forcibly unlinks
the QH (if necessary) and safely updates the toggle value.  This
allows qh_update() to be simplified and avoids using usb_device's
toggle bits in a rather unintuitive way.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: David Brownell <david-b@pacbell.net>
Tested-by: David <david@unsolicited.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:46 -07:00
Yoshihiro Shimoda
5effabbe9e USB: r8a66597-hcd: use platform_data instead of module_param
CPU/board specific parameters (PLL clock, vif etc...) can be set
by platform_data instead of module_param.

v2: remove irq_sense member in platform_data because it can OR in
    IRQF_TRIGGER_LOW or IRQF_TRIGGER_FALLING against IORESOURCE_IRQ in
    the struct resource.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Reviewed-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:46 -07:00
Alan Stern
68335e816a USB: EHCI: stagger frames for interrupt transfers
This patch (as1243) tries to improve ehci-hcd's scheduling of
interrupt transfers.  Instead of trying to cram all transfers with the
same period into the same frame, the new code will spread the
transfers out among lots of different frames.  This should reduce the
periodic schedule load in any one frame -- some host controllers have
trouble when there's too much work to do.

A more thorough approach would stagger the uframe values as well.  But
this is enough to make a big improvement.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Dwayne Fontenot <dwayne.fontenot@att.net>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:46 -07:00
Paul Mundt
5700f4c551 wusb: hwa-hc: Drop unused pci_suspend/resume hooks.
CC      drivers/usb/host/hwa-hc.o
drivers/usb/host/hwa-hc.c:601: warning: initialization from incompatible pointer type
drivers/usb/host/hwa-hc.c:602: warning: initialization from incompatible pointer type

The prototype for these changed, so the message itself was dropped. As the only
thing these hooks were doing was printing out the message for debugging, there
is not much point in keeping them around. So, just kill them off.

Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:44 -07:00
Alan Stern
6ec4beb5c7 USB: new flag for resume-from-hibernation
This patch (as1237) changes the way the PCI host controller drivers
avoid retaining bogus hardware states during resume-from-hibernation.
Previously we had reset the hardware as part of preparing to reinstate
the memory image.  But we can do better now with the new PM framework,
since we know exactly which resume operations are from hibernation.

The pci_resume method is changed to accept a flag indicating whether
the system is resuming from hibernation.  When this flag is set, the
drivers will reset the hardware to get rid of any existing state.

Similarly, the pci_suspend method is changed to remove the
pm_message_t argument.  It's no longer needed, since no special action
has to be taken when preparing to reinstate the memory image.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:44 -07:00
Alan Stern
abb306416a USB: move PCI host controllers to new PM framework
This patch (as1236) converts the USB PCI power management routines
over to the new PM framework.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:44 -07:00
Greg Kroah-Hartman
ed14f0340a USB: EHCI: create sysfs companion files directly in the controller device
The controller device is where we want this sysfs file, especially as
the dev pointer is about to go away...

Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:43 -07:00
Greg Kroah-Hartman
109833417c USB: OHCI: use the ohci structure directly in debugfs files.
Right now we jump through some hoops to get to the struct ohci_hcd
struct in the ohci debugfs files.  Remove all of the fun casting around
and just use the pointer directly.

This is needed as the dev pointer in the hcd structure is going away,
and it makes the code simpler and smaller

Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:43 -07:00
Greg Kroah-Hartman
ec20df2e89 USB: UHCI: use the new usb debugfs directory
All usb debugfs files should be behind the usb directory, not at the
root of debugfs.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:43 -07:00
Greg Kroah-Hartman
485f4f3975 USB: OHCI: use the new usb debugfs directory
All usb debugfs files should be behind the usb directory, not at the
root of debugfs.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:43 -07:00
Greg Kroah-Hartman
66536ab368 USB: FHCI: use the new usb debugfs directory
All usb debugfs files should be behind the usb directory, not at the
root of debugfs.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:43 -07:00
Greg Kroah-Hartman
08f4e586b9 USB: EHCI: use the new usb debugfs directory
All usb debugfs files should be behind the usb directory, not at the
root of debugfs.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:42 -07:00
H Hartley Sweeten
96f90a8b0d USB: host/ohci-hcd.c: fix sparse warnings
Fix sparse warnings in drivers/usb/host/ohci-hcd.c.

Four of the following sparse warning are seen when building on
ARM due do the macro raw_local_irq_save():

	warning: symbol 'temp' shadows an earlier one

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:42 -07:00
Matthias Kaehlcke
1eba67a60d USB: UHCI queue: use usb_endpoint_type()
use usb_endpoint_type() instead of fiddling manually with bmAttributes

Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:42 -07:00
Uwe Kleine-König
dc2f2b7505 USB: move orion-ehci's probe function to .devinit.text
A pointer to ehci_orion_drv_probe is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded.  Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.

An alternative to this patch is using platform_driver_probe instead of
platform_driver_register plus removing the pointer to the probe function
from the struct platform_driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Ronen Shitrit <rshitrit@marvell.com>
Cc: Lennert Buytenhek <buytenh@marvell.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Cc: Nicolas Pitre <nico@marvell.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Tzachi Perelstein <tzachi@marvell.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:40 -07:00
Uwe Kleine-König
8864bd8606 USB: move r8a66597_hcd's probe function to .devinit.text
A pointer to r8a66597_probe is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded.  Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.

An alternative to this patch is using platform_driver_probe instead of
platform_driver_register plus removing the pointer to the probe function
from the struct platform_driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Cc: Magnus Damm <damm@igel.co.jp>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:40 -07:00
Geert Uytterhoeven
313485175d usb/ps3: Add missing annotations
probe functions should be __devinit
initialization functions should be __init

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-16 14:17:32 +10:00
Geert Uytterhoeven
03fa68c245 ps3: shorten ps3_system_bus_[gs]et_driver_data to ps3_system_bus_[gs]et_drvdata
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: Jim Paris <jim@jtan.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 16:47:24 +10:00
Russell King
b0efb42478 Merge branch 'ep93xx' into devel 2009-06-10 22:40:04 +01:00
Hartley Sweeten
e3a6d01932 [ARM] 5526/1: ep93xx: usb driver cleanup
Cleanup the ohci-ep93xx driver.

1) Use the usb.h dbg() macro instead of pr_debug() so that
   the source filename is prefixed to the message and it is
   terminated with a linefeed.

2) Add error handling for the clk_get() call.

3) Update clkdev support so that the usb clock is matched by
   the dev_id instead of the con_id.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-05-29 20:16:29 +01:00
Warren Free
0afb20e00b USB: isp1760: urb_dequeue doesn't always find the urbs
The option driver (and presumably others) allocates several URBs when it
opens and tries to free them when it closes. The isp1760_urb_dequeue
function gets called, but the packet being dequeued is not necessarily at
the
front of one of the 32 queues. If not, the isp1760_urb_done function doesn't
get called for the URB and the process trying to free it hangs forever on a
wait_queue. This patch does two things. If the URB being dequeued has others
queued behind it, it re-queues them. And it searches the queues looking for
the URB being dequeued rather than just looking at the one at the front of
the queue.

[bigeasy@linutronix] whitespace fixes, reformating

Cc: stable <stable@kernel.org>
Signed-off-by: Warren Free <wfree@ipmn.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-05-28 13:54:43 -07:00
Dan Streetman
c065c60e83 USB: ehci-sched.c: EHCI SITD scheduling bugfix
Without this patch, the driver won't check that the last fully-occupied
uframe for a new split transaction was vacant beforehand.  This can
lead to a situation in which the first 188 bytes of a 192-byte
isochronous transfer are scheduled in the same uframe as an existing
interrupt transfer.  The resulting schedule looks like this:

       uframe 0: 188-byte isoc-OUT SSPLIT, 8-byte int-IN SSPLIT
       uframe 1: 4-byte isoc-OUT SSPLIT

The SSPLITs are intermingled, causing an error in the downstream hub's
TT.

If you are having problems with devices or hub ports resetting, or failed
interrupt transfers, when you start using a USB audio or video (Isochronous)
device, this patch may help.


Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Reported-by: Kung James <kong1191@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
2009-04-23 14:15:28 -07:00
David Vrabel
f720af91ec USB: whci-hcd: check return value of usb_hcd_link_urb_to_ep()
Check the return value of usb_hcd_link_urb_to_ep() and do not add the
urb to the ASL/PZL if it returns an error.

Omitting the check results in urbs that appear to be submitted
successfully but then cannot be unliked (because
usb_hcd_check_unlink_urb() returns an error).  This can cause khubd (for
example) to block forever in usb_kill_urb().

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-04-17 10:50:27 -07:00
David Vrabel
7f0406db5f USB: whci-hcd: provide a endpoint_reset method
Provide a endpoint_reset method to reset sequence number and current
window.  This QHead information can only be changed while the qset is
not in a schedule.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-04-17 10:50:27 -07:00
Linus Torvalds
139ef17a46 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 5446/1: ohci-at91: Limit vbus_pin assignment to the size of the array
  [ARM] 5445/1: AT91: Remove flexible array from USBH platform data
  [ARM] 5447/1: Add SZ_32K
  [ARM] omap: fix omap1 clock usecount decrement bug
  [ARM] pxa: register AC97 controller devices
  [ARM] pxa/csb701: do not register devices on non-csb726 boads
  [ARM] pxa/colibri: get rid of set_irq_type()
  [ARM] pxa/colibri: provide MAC address from ATAG_SERIAL
  [ARM] pxa/cm-x2xx: fix ucb1400 not being registered
  [ARM] pxa: Add support for suspend on PalmTX, T5 and LD
  [ARM] pxa: PalmTE2 support for battery, UDC, IrDA and backlight
  [ARM] pxa: Palm Tungsten E2 basic support
  [ARM] pxa/em-x270: add libertas device registration
  [ARM] pxa/magician: Enable bq24022 regulator for gpio_vbus and pda_power
2009-04-08 15:24:09 -07:00
Justin Waters
3d6fdf7563 [ARM] 5446/1: ohci-at91: Limit vbus_pin assignment to the size of the array
Currently, the vbus_pin assignment loop is limited by the value of the "ports"
variable in the platform data.  Now that the vbus_pin array is no longer
flexible, we can use its actual size.

Signed-off-by: Justin Waters <justin.waters@timesys.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-04-08 20:36:18 +01:00
Yang Hongyang
929a22a558 dma-mapping: replace all DMA_31BIT_MASK macro with DMA_BIT_MASK(31)
Replace all DMA_31BIT_MASK macro with DMA_BIT_MASK(31)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:11 -07:00
Yang Hongyang
284901a90a dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)
Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:11 -07:00
Yang Hongyang
6a35528a83 dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)
Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:10 -07:00
Russell King
ed40d0c472 Merge branch 'origin' into devel
Conflicts:
	sound/soc/pxa/pxa2xx-i2s.c
2009-03-28 20:29:51 +00:00
Linus Torvalds
61a091827e Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (97 commits)
  USB: qcserial: add device id for HP devices
  USB: isp1760: Add a delay before reading the SKIPMAP registers in isp1760-hcd.c
  USB: allow malformed LANGID descriptors
  USB: pxa27x_udc: typo fixes and code cleanups
  USB: gadget: gadget zero uses new suspend/resume hooks
  USB: gadget: composite device-level suspend/resume hooks
  USB: r8a66597-hcd: suspend/resume support
  USB: more u32 conversion after transfer_buffer_length and actual_length
  USB: Fix cp2101 USB serial device driver termios functions for console use
  USB: CP2101 New Device ID
  USB: ipaq: handle 4 endpoint devices
  USB: S3C: Move usb-control.h to platform include
  USB: ohci-hcd: Add ARCH_S3C24XX to the ohci-s3c2410.c glue
  USB: pedantic: spelling correction in comment for ch9.h
  USB: host: fix sparse warning: Using plain integer as NULL pointer
  USB: ohci-s3c2410: fix name of bus clock
  USB: ohci-s3c2410: remove <mach/hardware.h> include
  USB: serial: rename cp2101 driver to cp210x
  USB: CP2101 Reduce Error Logging
  USB: CP2101 Support AN205 baud rates
  ...
2009-03-26 11:17:39 -07:00
Linus Torvalds
0c93ea4064 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (61 commits)
  Dynamic debug: fix pr_fmt() build error
  Dynamic debug: allow simple quoting of words
  dynamic debug: update docs
  dynamic debug: combine dprintk and dynamic printk
  sysfs: fix some bin_vm_ops errors
  kobject: don't block for each kobject_uevent
  sysfs: only allow one scheduled removal callback per kobj
  Driver core: Fix device_move() vs. dpm list ordering, v2
  Driver core: some cleanup on drivers/base/sys.c
  Driver core: implement uevent suppress in kobject
  vcs: hook sysfs devices into object lifetime instead of "binding"
  driver core: fix passing platform_data
  driver core: move platform_data into platform_device
  sysfs: don't block indefinitely for unmapped files.
  driver core: move knode_bus into private structure
  driver core: move knode_driver into private structure
  driver core: move klist_children into private structure
  driver core: create a private portion of struct device
  driver core: remove polling for driver_probe_done(v5)
  sysfs: reference sysfs_dirent from sysfs inodes
  ...

Fixed conflicts in drivers/sh/maple/maple.c manually
2009-03-26 11:17:04 -07:00
Linus Torvalds
928a726b0e Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (96 commits)
  sh: add support for SMSC Polaris platform
  sh: fix the HD64461 level-triggered interrupts handling
  sh: sh-rtc wakeup support
  sh: sh-rtc invalid time rework
  sh: sh-rtc carry interrupt rework
  sh: disallow kexec virtual entry
  sh: kexec jump: fix for ftrace.
  sh: kexec: Drop SR.BL bit toggling.
  sh: add kexec jump support
  sh: rework kexec segment code
  sh: simplify kexec vbr code
  sh: Flush only the needed range when unmapping a VMA.
  sh: Update debugfs ASID dumping for 16-bit ASID support.
  sh: tlb-pteaex: Kill off legacy PTEA updates.
  sh: Support for extended ASIDs on PTEAEX-capable SH-X3 cores.
  sh: sh7763rdp: Change IRQ number for sh_eth of sh7763rdp
  sh: espt-giga board support
  sh: dma: Make G2 DMA configurable.
  sh: dma: Make PVR2 DMA configurable.
  sh: Move IRQ multi definition of DMAC to defconfig
  ...
2009-03-26 11:11:23 -07:00
Russell King
8937b7349c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into devel 2009-03-25 18:31:35 +00:00
Sachin Sant
6866ac9db0 USB: FHCI: use dev_name() in place of bus_id.
Replace references to bus_id with dev_name() to fix fhci driver build break.

drivers/usb/host/fhci-hcd.c:586: error: struct device has no member named bus_id
drivers/usb/host/fhci-hcd.c:653: error: struct device has no member named bus_id
drivers/usb/host/fhci-dbg.c:111: error: struct device has no member named bus_id

Signed-off-by: Sachin Sant <sachinp@in.ibm.com>
Acked-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:38:23 -07:00
Catalin Marinas
e6bdfe36e5 USB: isp1760: Add a delay before reading the SKIPMAP registers in isp1760-hcd.c
The data read from the SKIPMAP registers is not immediately available
after writing and the driver panics when a packet is enqueued from the
interrupt handler. This patch adds an ndelay(195) before these registers
are read (delay value mentioned in section 15.1.1.3 of the ISP1760 data
sheet).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:46 -07:00
Yoshihiro Shimoda
e1e609be49 USB: r8a66597-hcd: suspend/resume support
Fix the problem that system cannot suspend.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:45 -07:00
Ben Dooks
49121aa14c USB: S3C: Move usb-control.h to platform include
The usb-control.h is needed by ohci-s3c2410.c for both S3C24XX and S3C64XX
architectures, so move it to <plat/usb-control.h>

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:45 -07:00
Ben Dooks
3ba5f38f3d USB: ohci-hcd: Add ARCH_S3C24XX to the ohci-s3c2410.c glue
The ohci-s3c2410.c glue supports both CONFIG_ARCH_S3C2410 and
CONFIG_ARCH_S3C64XX so add it to the build of ohci-s3c2410.c

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:44 -07:00
Hannes Eder
a9f8ec4db1 USB: host: fix sparse warning: Using plain integer as NULL pointer
Fix this sparse warning:
 drivers/usb/host/oxu210hp-hcd.c:2687:42: warning: Using plain integer as NULL pointer

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:44 -07:00
Ben Dooks
2dfa319a64 USB: ohci-s3c2410: fix name of bus clock
The USB bus clock is usb-bus-host, so print the correct name in the
dev_err() statement if we cannot find it.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
2009-03-24 16:20:44 -07:00
Ben Dooks
3edb8a208b USB: ohci-s3c2410: remove <mach/hardware.h> include
Remove the include of <mach/hardware.h>, as no definitions
from it are used by the OHCI driver.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:44 -07:00
Johannes Weiner
31dbb80346 USB: use kzfree()
Use kzfree() instead of memset() + kfree().

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:44 -07:00
Greg Kroah-Hartman
16e2e5f634 USB: make transfer_buffer_lengths in struct urb field u32
Roel Kluin pointed out that transfer_buffer_lengths in struct urb was
declared as an 'int'.  This patch changes this field to be 'u32' to
prevent any potential negative conversion and comparison errors.

This triggered a few compiler warning messages when these fields were
being used with the min macro, so they have also been fixed up in this
patch.

Cc: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:36 -07:00
Alan Stern
7ea0a2bcfe USB: uhci: don't use pseudo negative values
The code in uhci-q.c doesn't have to use pseudo-negative values.  I did
it that way because it was easy and because it would give the expected
output during debugging.  But it doesn't have to work that way.  Here's
another approach.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:36 -07:00
Randy Dunlap
d0626808f7 USB: fix ehci printk formats
Fix ehci printk formats:

drivers/usb/host/ehci-q.c:351: warning: format '%d' expects type 'int', but argument 4 has type 'size_t'
drivers/usb/host/ehci-q.c:351: warning: format '%d' expects type 'int', but argument 5 has type 'size_t'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:33 -07:00
Harvey Harrison
551509d267 USB: replace uses of __constant_{endian}
The base versions handle constant folding now.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:33 -07:00
Catalin Marinas
f7e7aa5850 USB: Add platform device support for the ISP1760 USB chip
Currently, the driver only supports PCI and PPC_OF but there are
boards like ARM RealView where this is a platform device. The patch adds
the necessary functions and registration to the isp1760-if.c file and
modifies the corresponding Makefile and Kconfig to be able to use this
driver even if PCI and PPC_OF are not enabled.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:31 -07:00
Catalin Marinas
f9031f2c42 USB: Make the isp1760_register function prototype more generic
The patch changes the prototype of the isp1760_register() function to use
predefined types like phys_addr_t and resource_size_t rather than u64

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:31 -07:00
Alan Stern
a2c2706e10 USB: EHCI: add software retry for transaction errors
This patch (as1204) adds a software retry mechanism to ehci-hcd.  It
gets invoked when the driver encounters transaction errors on an
asynchronous endpoint.  On many systems, hardware deficiencies cause
such errors to occur if one device is unplugged while the host is
communicating with another device.  With the patch, the failed
transactions are retried and generally succeed the second or third
time through.

This is based on code originally written by Koichiro Saito.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested by: Koichiro Saito <Saito.Koichiro@adniss.jp>
CC: David Brownell <david-b@pacbell.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:31 -07:00
Alan Stern
bc29847e16 USB: EHCI: Make timer_action out-of-line
This patch (as1205) moves timer_action() from ehci.h to ehci-hcd.c and
makes it out-of-line.  Over the years it has grown too big to be inline
any more.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:31 -07:00
Thierry Vignaud
b967c88ed1 usb: kill prehistorical comments about USB_EHCI_HCD
Remove old comments about USB_EHCI_HCD.

Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:31 -07:00
Frank Seidel
6f8aa65b52 USB: add missing KERN_* constants to printks
According to kerneljanitors todo list all printk calls (beginning
a new line) should have an according KERN_* constant.
Those are the missing peaces here for the usb subsystem.

Signed-off-by: Frank Seidel <frank@f-seidel.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:30 -07:00
Roel Kluin
6e14bda1b1 USB: count reaches -1, tested 0
With a postfix decrement count will reach -1 rather than 0,
so the warning will not be issued.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:29 -07:00
Julia Lawall
2e0fe70968 USB: drivers: use USB API functions rather than constants
This set of patches introduces calls to the following set of functions:

usb_endpoint_dir_in(epd)
usb_endpoint_dir_out(epd)
usb_endpoint_is_bulk_in(epd)
usb_endpoint_is_bulk_out(epd)
usb_endpoint_is_int_in(epd)
usb_endpoint_is_int_out(epd)
usb_endpoint_num(epd)
usb_endpoint_type(epd)
usb_endpoint_xfer_bulk(epd)
usb_endpoint_xfer_control(epd)
usb_endpoint_xfer_int(epd)
usb_endpoint_xfer_isoc(epd)

In some cases, introducing one of these functions is not possible, and it
just replaces an explicit integer value by one of the following constants:

USB_ENDPOINT_XFER_BULK
USB_ENDPOINT_XFER_CONTROL
USB_ENDPOINT_XFER_INT
USB_ENDPOINT_XFER_ISOC

An extract of the semantic patch that makes these changes is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r1@ struct usb_endpoint_descriptor *epd; @@

- ((epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) ==
- \(USB_ENDPOINT_XFER_CONTROL\|0\))
+ usb_endpoint_xfer_control(epd)

@r5@ struct usb_endpoint_descriptor *epd; @@

- ((epd->bEndpointAddress & \(USB_ENDPOINT_DIR_MASK\|0x80\)) ==
-  \(USB_DIR_IN\|0x80\))
+ usb_endpoint_dir_in(epd)

@inc@
@@

#include <linux/usb.h>

@depends on !inc && (r1||r5)@
@@

+ #include <linux/usb.h>
  #include <linux/usb/...>
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:28 -07:00
Alan Stern
391016f6e2 USB: EHCI: expedite unlinks when the root hub is suspended
This patch (as1225) fixes a bug in ehci-hcd.  The condition for
whether unlinked QHs can become IDLE should not be that the controller
is halted, but rather that the controller isn't running.  In other
words when the root hub is suspended, the hardware doesn't own any
QHs.

This fixes a problem that can show up during hibernation: If a QH is
only partially unlinked when the root hub is frozen, then when the
root hub is thawed the QH won't be in the IDLE state.  As a result it
can't be used properly for new URB submissions.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Brandon Philips <brandon@ifup.org>
Tested-by: Brandon Philips <brandon@ifup.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-17 14:01:29 -07:00
Karsten Wiese
508db8c954 USB: EHCI: Fix isochronous URB leak
ehci-hcd uses usb_get_urb() and usb_put_urb() in an unbalanced way causing
isochronous URB's kref.counts incrementing once per usb_submit_urb() call.
The culprit is *usb being set to NULL when usb_put_urb() is called after URB
is given back.
Due to other fixes there is no need for ehci-hcd to deal with usb_get_urb()
nor usb_put_urb() anymore, so patch removes their usages in ehci-hcd.
Patch also makes ehci_to_hcd(ehci)->self.bandwidth_allocated adjust, if a
stream finishes.

Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Cc: David Brownell <david-b@pacbell.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-17 14:01:29 -07:00
Kuninori Morimoto
4c3f450ba4 sh: Add OHCI USB support for SH7786
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16 19:40:34 +09:00
Russell King
97fb44eb6b Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into devel
Conflicts:

	arch/arm/mach-at91/gpio.c
2009-03-13 21:44:51 +00:00
Karsten Wiese
9aa09d2f8f USB: EHCI: slow down ITD reuse
Currently ITDs are immediately recycled whenever their URB completes.
However, EHCI hardware can sometimes remember some ITD state.  This
means that when the ITD is reused before end-of-frame it may sometimes
cause the hardware to reference bogus state.

This patch defers reusing such ITDs by moving them into a new ehci member
cached_itd_list. ITDs resting in cached_itd_list are moved back into their
stream's free_list once scan_periodic() detects that the active frame has
elapsed.

This makes the snd_usb_us122l driver (in kernel since .28) work right
when it's hooked up through EHCI.

[ dbrownell@users.sourceforge.net: comment fixups ]

Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Tested-by: Philippe Carriere <philippe-f.carriere@wanadoo.fr>
Tested-by: Federico Briata <federicobriata@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-27 14:40:50 -08:00
Hartley Sweeten
1c7880dffc [ARM] 5406/1: ep93xx: remove unneeded header in ohci-ep93xx.c
Remove the unneeded #include <mach/hardware.h>

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-21 16:39:06 +00:00
Rafael J. Wysocki
3494252d56 USB/PCI: Fix resume breakage of controllers behind cardbus bridges
If a USB PCI controller is behind a cardbus bridge, we are trying to
restore its configuration registers too early, before the cardbus
bridge is operational.  To fix this, call pci_restore_state() from
usb_hcd_pci_resume() and remove usb_hcd_pci_resume_early() which is
no longer necessary (the configuration spaces of USB controllers that
are not behind cardbus bridges will be restored by the PCI PM core
with interrupts disabled anyway).

This patch fixes the regression from 2.6.28 tracked as
http://bugzilla.kernel.org/show_bug.cgi?id=12659

[ Side note: the proper long-term fix is probably to just force the
  unplug event at suspend time instead of doing a plug/unplug at resume
  time, but this patch is fine regardless  - Linus ]

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-17 16:56:31 -08:00
David Vrabel
a3c1239eb5 wusb: whci-hcd: always lock whc->lock with interrupts disabled
Always lock whc->lock with spin_lock_irq() or spin_lock_irqsave().

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2009-02-16 14:37:12 +00:00
David Vrabel
8f04915532 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream 2009-02-02 17:52:39 +00:00
Anton Vorontsov
236dd4d18f USB: Driver for Freescale QUICC Engine USB Host Controller
This patch adds support for the FHCI USB controller, as found
in the Freescale MPC836x and MPC832x processors. It can support
Full or Low speed modes.

Quite a lot the hardware is doing by itself (SOF generation, CRC
generation and checking), though scheduling and retransmission is on
software's shoulders.

This controller does not integrate the root hub, so this driver also
fakes one-port hub. External hub is required to support more than
one device.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-27 16:15:38 -08:00
David Brownell
2bf5fa13fc USB: omap1 ohci buildfix (otg related)
> > drivers/built-in.o: In function `ohci_omap_init':
 > > hid-quirks.c:(.text+0x6c608): undefined reference to `otg_get_transceiver'
 > > drivers/built-in.o: In function `omap_udc_probe':
 > > hid-quirks.c:(.init.text+0x34c0): undefined reference to `otg_get_transceiver'
 > > hid-quirks.c:(.init.text+0x3d40): undefined reference to `otg_put_transceiver'

Reported-by: Russell King <linux@arm.linux.org.uk>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-27 16:15:32 -08:00
Rafael J. Wysocki
a15d95a003 USB: Fix suspend-resume of PCI USB controllers
Commit a0d4922da2
(USB: fix up suspend and resume for PCI host controllers) attempted
to fix the suspend-resume of PCI USB controllers, but unfortunately
it did that incorrectly and interrupts are left enabled by the USB
controllers' ->suspend_late() callback as a result.  This leads to
serious problems during suspend which are very difficult to debug.

Fix the issue by removing the ->suspend_late() callback of PCI
USB controllers and moving the code from there to the ->suspend()
callback executed with interrupts enabled.  Additionally, make
the ->resume() callback of PCI USB controllers execute
pci_enable_wake(dev, PCI_D0, false) to disable wake-up from the
full power state (PCI_D0).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: Andrey Borzenkov <arvidjaar@mail.ru>
Tested-by: "Jeff Chua" <jeff.chua.linux@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: "Zdenek Kabelac" <zdenek.kabelac@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-27 16:15:32 -08:00
Alan Stern
bcca06efea USB: don't enable wakeup by default for PCI host controllers
This patch (as1199) changes the initial wakeup settings for PCI USB
host controllers.  The controllers are marked as capable of waking the
system, but wakeup is not enabled by default.

It turns out that enabling wakeup for USB host controllers has a lot
of bad consequences.  As the simplest example, if a USB mouse or
keyboard is unplugged immediately after the computer is put to sleep,
the unplug will cause the system to wake back up again!  We are better
off marking them as wakeup-capable and leaving wakeup disabled.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Rafael J. Wysocki <rjw@sisk.pl>
CC: David Brownell <david-b@pacbell.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-27 16:15:32 -08:00
Russell King
953a7e8476 [ARM] omap: ensure OMAP drivers pass a struct device to clk_get()
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 11:41:16 +00:00
David Vrabel
dff243f7cb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream 2009-01-22 19:12:32 +00:00
Alan Stern
6fd9086a51 USB: automatically enable wakeup for PCI host controllers
This patch (as1193b) enables wakeup during initialization for all PCI
host controllers, and it removes some code (and comments!) that are no
longer needed now that the PCI core automatically initializes wakeup
settings for all new devices.

The idea is that the bus should initialize wakeup, and the bus glue
or controller driver should enable it.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:12 -08:00
Alan Stern
a0d4922da2 USB: fix up suspend and resume for PCI host controllers
This patch (as1192) rearranges the USB PCI host controller suspend and
resume and resume routines:

	Use pci_wake_from_d3() for enabling and disabling wakeup,
	instead of pci_enable_wake().

	Carry out the actual state change while interrupts are
	disabled.

	Change the order of the preparations to agree with the
	general recommendation for PCI devices, instead of
	messing around with the wakeup settings while the device
	is in D3.

		In .suspend:
			Call the underlying driver to disable IRQ
				generation;
			pci_wake_from_d3(device_may_wakeup());
			pci_disable_device();

		In .suspend_late:
			pci_save_state();
			pci_set_power_state(D3hot);
			(for PPC_PMAC) Disable ASIC clocks

		In .resume_early:
			(for PPC_PMAC) Enable ASIC clocks
			pci_set_power_state(D0);
			pci_restore_state();

		In .resume:
			pci_enable_device();
			pci_set_master();
			pci_wake_from_d3(0);
			Call the underlying driver to reenable IRQ
				generation

	Add the necessary .suspend_late and .resume_early method
	pointers to the PCI host controller drivers.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:12 -08:00
Thomas Hommel
42c65396d4 USB: isp1760: don't auto disable Port1 on ISP1761
There is no need to disable port 1 on ISP1761. That port could
be used as an OTG port which would require a different init
sequence. However we don't have OTG support (yet) so we can use
it as a normal USB port.
This patch allows port 1 to be used a normal Port on the ISP1761.

Signed-off-by: Thomas Hommel <Thomas.Hommel@gefanuc.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:09 -08:00
Karl Bongers
6013bbbab0 USB: isp1760: Fix probe in PCI glue code
Contains fixes so probe on x86 PCI runs, apparently I'm first to try
this. Several fixes to memory access to probe host scratch register.
Previously would bug check on chip_addr var used uninitialized.
Scratch reg write failed in one instance due to 16-bit initial access
mode, so added "& 0x0000ffff" to the readl as fix.
Includes some general cleanup - remove global vars, organize memory map
resource use.

Signed-off-by: Karl Bongers <kbongers@jged.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:04 -08:00
Sebastian Andrzej Siewior
6c0735687d USB: isp1760: use a specific PLX bridge instead of any bdridge
this driver can't handle (of course) any brdige class devices. So we
now are just active on one specific bridge which should be only the
isp1761 chip behind a PLX bridge.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Karl Bongers <kblists08@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:04 -08:00
Magnus Damm
0a2e5b9b8a USB: m66592 and r8a66597 resource changes
Use the more common platform_get_resource() together with index instead
of depending on the resource name and platform_get_resource_by_name().
Replace the resource_len() implementation with resource_size().

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:53 -08:00
Jean Delvare
3a407e7391 USB: Convert ohci-pnx4008 to a new-style i2c driver
The legacy i2c binding model will go away soon, convert ohci-pnx4008
to use the new binding model instead.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:53 -08:00
Kay Sievers
74c71ebd8d oxu210hp-hcd.c: struct device - replace bus_id with dev_name(), dev_set_name()
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:52 -08:00
Kay Sievers
427c4f3334 usb: struct device - replace bus_id with dev_name(), dev_set_name()
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:52 -08:00
Vitaly Bordug
796bcae736 USB: powerpc: Workaround for the PPC440EPX USBH_23 errata [take 3]
A published errata for ppc440epx states, that when running Linux with
both EHCI and OHCI modules loaded, the EHCI module experiences a fatal
error when a high-speed device is connected to the USB2.0, and
functions normally if OHCI module is not loaded.

There used to be recommendation to use only hi-speed or full-speed
devices with specific conditions, when respective module was unloaded.
Later, it was observed that ohci suspend is enough to keep things
going, and it was turned into workaround, as explained below.

Quote from original descriprion:

The 440EPx USB 2.0 Host controller is an EHCI compliant controller.  In
USB 2.0 Host controllers, each EHCI controller has one or more companion
controllers, which may be OHCI or UHCI.  An USB 2.0 Host controller will
contain one or more ports.  For each port, only one of the controllers
is connected at any one time. In the 440EPx, there is only one OHCI
companion controller, and only one USB 2.0 Host port.
All ports on an USB 2.0 controller default to the companion
controller.  If you load only an ohci driver, it will have control of
the ports and any deviceplugged in will operate, although high speed
devices will be forced to operate at full speed.  When an ehci driver
is loaded, it explicitly takes control of the ports.  If there is a
device connected, and / or every time there is a new device connected,
the ehci driver determines if the device is high speed or not.  If it
is high speed, the driver retains control of the port.  If it is not,
the driver explicitly gives the companion controller control of the
port.

The is a software workaround that uses
Initial version of the software workaround was posted to
linux-usb-devel:

http://www.mail-archive.com/linux-usb-devel@lists.sourceforge.net/msg54019.html

and later available from amcc.com:
http://www.amcc.com/Embedded/Downloads/download.html?cat=1&family=15&ins=2

The patch below is generally based on the latter, but reworked to
powerpc/of_device USB drivers, and uses a few devicetree inquiries to
get rid of (some) hardcoded defines.

Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:52 -08:00
Steven Noonan
d859bffc66 USB: EHCI pci-quirks.c: don't wait so long for BIOS handoff
Instead of waiting a painful 5000ms, quirk_usb_disable_ehci() now does a
1000ms loop to wait for the BIOS to acknowledge the handoff.

The five second delay is really quite irritating to have to deal with
every boot up, and I very seriously doubt any non-broken bios takes more
than a second to do the actual handoff.

Signed-off-by: Steven Noonan <steven@uplinklabs.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:50 -08:00
Rodolfo Giometti
b92a78e582 usb host: Oxford OXU210HP HCD driver.
This driver implements the support for Oxford OXU210HP USB high-speed host,
no peripheral nor OTG.

Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Cc: Kan Liu <kan.k.liu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:50 -08:00
Vikram Pandita
3a4e72cbf2 USB: Avoid 20ms delay in EHCI resume
For function ehci_bus_resume()
- Added flag resume_needed
  No need to wait for 20ms if no port was suspended

- Change mdelay to msleep

- release and reacquire the spinlock around mdelay

Signed-off-by: vikram pandita <vikram.pandita@ti.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:50 -08:00
Arjan van de Ven
8e8ce4b642 USB: use pci_ioremap_bar() in drivers/usb
Use the newly introduced pci_ioremap_bar() function in drivers/usb.
pci_ioremap_bar() just takes a pci device and a bar number, with the goal
of making it really hard to get wrong, while also having a central place
to stick sanity checks.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:49 -08:00
roel kluin
e64a521929 USB: clean up redundant tests on unsigned
temp, bytes and param->{length,sglen,vary} are unsigned so
these tests do nothing.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:49 -08:00
David Vrabel
a5e6ced58d wusb: timeout when waiting for ASL/PZL updates in whci-hcd
Timeout if an ASL or PZL update doesn't not complete and reset the
hardware.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2009-01-07 10:54:22 +00:00
David Vrabel
b21a207141 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
Conflicts:

	drivers/uwb/wlp/eda.c
2009-01-02 13:17:13 +00:00
Linus Torvalds
14a3c4ab0e Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (407 commits)
  [ARM] pxafb: add support for overlay1 and overlay2 as framebuffer devices
  [ARM] pxafb: cleanup of the timing checking code
  [ARM] pxafb: cleanup of the color format manipulation code
  [ARM] pxafb: add palette format support for LCCR4_PAL_FOR_3
  [ARM] pxafb: add support for FBIOPAN_DISPLAY by dma braching
  [ARM] pxafb: allow pxafb_set_par() to start from arbitrary yoffset
  [ARM] pxafb: allow video memory size to be configurable
  [ARM] pxa: add document on the MFP design and how to use it
  [ARM] sa1100_wdt: don't assume CLOCK_TICK_RATE to be a constant
  [ARM] rtc-sa1100: don't assume CLOCK_TICK_RATE to be a constant
  [ARM] pxa/tavorevb: update board support (smartpanel LCD + keypad)
  [ARM] pxa: Update eseries defconfig
  [ARM] 5352/1: add w90p910-plat config file
  [ARM] s3c: S3C options should depend on PLAT_S3C
  [ARM] mv78xx0: implement GPIO and GPIO interrupt support
  [ARM] Kirkwood: implement GPIO and GPIO interrupt support
  [ARM] Orion: share GPIO IRQ handling code
  [ARM] Orion: share GPIO handling code
  [ARM] s3c: define __io using the typesafe version
  [ARM] S3C64XX: Ensure CPU_V6 is selected
  ...
2008-12-30 17:36:49 -08:00
David Vrabel
bce83697c5 uwb: use dev_dbg() for debug messages
Instead of the home-grown d_fnstart(), d_fnend() and d_printf() macros,
use dev_dbg() or remove the message entirely.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-12-22 18:22:50 +00:00
Paul Mundt
d6435102d4 usb: Fix up sh_mobile usbf clock framework warnings.
drivers/usb/gadget/m66592-udc.c: In function 'm66592_probe':
drivers/usb/gadget/m66592-udc.c:1672: warning: label 'clean_up2' defined but not used
drivers/usb/host/r8a66597-hcd.c: In function 'r8a66597_probe':
drivers/usb/host/r8a66597-hcd.c:2401: warning: label 'clean_up2' defined but not used

Added by commit 985fc7c81c7852f2e104c71cbe913ace683c9e6a ("sh: sh_mobile
usbf clock framework support").

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:52 +09:00
Magnus Damm
765786e0ae sh: sh_mobile usb clock framework support
Add clock framework support to the usb/r8a66597 driver and
adjust the cpu specific code accordingly.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:51 +09:00
Russell King
7e1548a597 Merge branch 'omap3-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into devel 2008-12-15 22:13:26 +00:00
Russell King
72aaf09fda Merge git://git.marvell.com/orion into devel 2008-12-13 09:12:51 +00:00
Jarkko Nikula
944e1bffb6 ARM: OMAP: Switch ohci-omap to gpio_request/free calls
Switch to gpio_request/free calls

Cc: linux-usb@vger.kernel.org
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-10 17:35:31 -08:00
David Brownell
40e3925ba1 ARM: OMAP: switch to gpio_direction_input
More switchover to the cross-platform GPIO interface:
use gpio_direction_input(), not an OMAP-specific call.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-10 17:35:26 -08:00
David Vrabel
c35fa3ea1a Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream 2008-12-08 16:18:47 +00:00
Ronen Shitrit
fb6f552930 [ARM] Orion: add the option to support different ehci phy initialization
The Orion ehci driver serves the Orion, kirkwood and DD Soc families.
Since each of those integrate a different USB phy we should have the
ability to use few initialization sequences or to leave the boot loader
phy settings as is.

Signed-off-by: Ronen Shitrit <rshitrit@marvell.com>
2008-12-04 01:28:14 -05:00
Shane Huang
0a99e8ac43 USB: fix SB600 USB subsystem hang bug
This patch is required for all AMD SB600 revisions to avoid USB subsystem hang
symptom. The USB subsystem hang symptom is observed when the system has
multiple USB devices connected to it. In some cases a USB hub may be required
to observe this symptom.

Reported in bugzilla as #11599, the similar patch for SB700 old revision is:
commit b09bc6cbae

Reported-by: raffaele <ralfconn@tele2.it>
Tested-by: Roman Mamedov <roman@rm.pp.ru>
Signed-off-by: Shane Huang <shane.huang@amd.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-11-30 22:24:02 -08:00
Greg Kroah-Hartman
269f053233 Revert "USB: improve ehci_watchdog's side effect in CPU power management"
This reverts commit f0d781d59c.

It was the wrong thing to do, and does not really do what it said
it did.

Cc: Yi Yang <yi.y.yang@intel.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-11-30 22:24:02 -08:00
Russell King
e0d8b13ae1 [ARM] pxa: don't pass a consumer clock name for devices with unique clocks
Where devices only have one consumer, passing a consumer clock ID
has no real benefit.  Remove it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-27 12:38:23 +00:00
David Vrabel
dcc7461eef wusb: add debug files for ASL, PZL and DI to the whci-hcd driver
Add asl, pzl and di debugfs files to uwb/uwbN/wusbhc for WHCI host
controller.  These dump the current ASL, PZL and DI buffer.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-11-26 13:36:59 +00:00
David Vrabel
56968d0c1a wusb: whci-hcd shouldn't do ASL/PZL updates while channel is inactive
ASL/PZL updates while the WUSB channel is inactive (i.e., the PZL and
ASL are stopped) may not complete.  This causes hangs when removing the
whci-hcd module if a device is still connected (removing the device
does an endpoint_disable which results in an ASL update to remove the
qset).

If the WUSB channel is inactive the update can simply be skipped as the
WHC doesn't care about the state of the ASL/PZL.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-11-25 14:23:40 +00:00
David Vrabel
65d76f3682 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream 2008-11-25 13:52:56 +00:00
Andiry Xu
b09bc6cbae USB: fix SB700 usb subsystem hang bug
This patch is required for AMD SB700 south bridge revision A12 and A13 to avoid
USB subsystem hang symptom. The USB subsystem hang symptom is observed when the
system has multiple USB devices connected to it. In some cases a USB hub may be
required to observe this symptom.

This patch works around the problem by correcting the internal register setting
that will help by changing the behavior of the internal logic to avoid the
USB subsystem hang issue. The change in the behavior of the logic does not
impact the normal operation of the USB subsystem.

Reported-by: Volker Armin Hemmann <volker.armin.hemmann@tu-clausthal.de>
Tested-by: Volker Armin Hemmann <volker.armin.hemmann@tu-clausthal.de>
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Libin Yang <libin.yang@amd.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-11-19 22:01:34 -08:00
David Vrabel
dba0a91872 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream 2008-11-19 14:48:07 +00:00
David Vrabel
6fae35f9ce uwb: add basic radio manager
The UWB radio manager coordinates the use of the radio between the
PALs that may be using it.  PALs request use of the radio with
uwb_radio_start() and the radio manager will start beaconing if its
not already doing so.  When the last PAL has called uwb_radio_stop()
beaconing will be stopped.

In the future, the radio manager will have a more sophisticated channel
selection algorithm, probably following the Channel Selection Policy
from the WiMedia Alliance when it is finalized.  For now, channel 9
(BG1, TFC1) is selected.

The user may override the channel selected by the radio manager and may
force the radio to stop beaconing.

The WUSB Host Controller PAL makes use of this and there are two new
debug PAL commands that can be used for testing.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-11-19 14:46:33 +00:00
Alan Stern
372dd6e8ed USB: EHCI: fix divide-by-zero bug
This patch (as1164) fixes a bug in the EHCI scheduler.  The interval
value it uses is already in linear format, not logarithmically coded.
The existing code can sometimes crash the system by trying to divide
by zero.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Cc: Stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-11-13 14:45:06 -08:00
Alan Stern
67b2e02974 USB: EHCI: fix handling of dead controllers
This patch (as1165) makes a few small changes in the logic used by
ehci-hcd when it encounters a controller error:

	Instead of printing out the masked status, it prints the
	original status as read directly from the hardware.

	It doesn't check for the STS_HALT status bit before taking
	action.  The mere fact that the STS_FATAL bit is set means
	that something bad has happened and the controller needs to
	be reset.  With the old code this test could never succeed
	because the STS_HALT bit was masked out from the status.

I anticipate that this will prevent the occasional "irq X: nobody cared"
problem people encounter when their EHCI controllers die.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-11-13 14:45:05 -08:00
Yoshihiro Shimoda
5863964608 usb: r8a66597-hcd: fix wrong data access in SuperH on-chip USB
When I used SuperH on-chip USB, there was the problem that accessed
r8a66597_root_hub which was not allocated.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-11-13 14:45:04 -08:00
Sebastian Andrzej Siewior
ff30bf1ca4 USB: remove optional bus bindings in isp1760, fixing runtime warning
Roland Reported the following:
| kmem_cache_create: duplicate cache isp1760_qtd
| Pid: 461, comm: modprobe Tainted: G        W  2.6.28-rc2-git3-default #4
| Call Trace:
|  [<c017540e>] kmem_cache_create+0xc9/0x3a3
|  [<c0159a8d>] free_pages_bulk+0x16c/0x1c9
|  [<f165c05f>] isp1760_init+0x0/0xb [isp1760]
|  [<f165c018>] init_kmem_once+0x18/0x5f [isp1760]
|  [<f165c064>] isp1760_init+0x5/0xb [isp1760]
|  [<c010113d>] _stext+0x4d/0x148
|  [<c0142936>] load_module+0x12cd/0x142e
|  [<c01743c4>] kmem_cache_destroy+0x0/0xd7
|  [<c0142b1e>] sys_init_module+0x87/0x176
|  [<c01039eb>] sysenter_do_call+0x12/0x2f

The reason, is that ret is initialized with ENODEV instead of 0 _or_
the kmem cache is not freed in error case with no bus binding.

The difference between OF+PCI and OF only is
| 15148     804      32   15984    3e70 isp1760-of-pci.o
| 13748     676       8   14432    3860 isp1760-of.o

about 1.5 KiB.

Until there is a checkbox where the user *must* select atleast one item,
and may select multiple entries I don't make it selectable anymore.
Having a driver which can't be used under any circumstances is broken
anyway and I've seen distros shipping it that way.

Reported-by: Roland Kletzing <devzero@web.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>a
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-11-13 14:45:03 -08:00
Geoff Levand
ddcb01ff9b USB: Fix PS3 USB shutdown problems
Add ehci_shutdown() or ohci_shutdown() calls to the USB
PS3 bus glue.  ehci_shutdown() and ohci_shutdown() do some
controller specific cleanups not done by usb_remove_hcd().

Fixes errors on shutdown or reboot similar to these:

  ps3-ehci-driver sb_07: HC died; cleaning up
  irq 51: nobody cared (try booting with the "irqpoll" option)

Related bugzilla reports:

  http://bugzilla.kernel.org/show_bug.cgi?id=11819
  http://bugzilla.terrasoftsolutions.com/show_bug.cgi?id=317

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-11-13 14:45:02 -08:00
Huang Weiyi
f88518d122 wusb: remove unused #include <version.h>
The file(s) below do not use LINUX_VERSION_CODE nor KERNEL_VERSION.
  drivers/usb/host/hwa-hc.c
  drivers/usb/host/whci/hcd.c
  drivers/usb/host/whci/int.c
  drivers/usb/host/whci/wusb.c
  drivers/usb/wusbcore/cbaf.c

This patch removes the said #include <version.h>.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-31 15:10:27 +00:00
David Vrabel
4d2bea4ca0 wusb: do a proper channel stop
When stopping the WUSB channel the host should send Channel Stop IEs giving
the WUSB Channel Time of the last MMC.  Both WHCI and HWA hosts provide a
channel stop command for this.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-28 12:08:46 +00:00
David Vrabel
b09ac64b7b wusb: release mutex in the error path of whci-hcd's whc_do_gencmd()
Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-28 12:06:59 +00:00
Linus Torvalds
a27028349c Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: don't rebind drivers after failed resume or reset
  USB: fix memory leak in cdc-acm
  USB: Unusual dev for Mio moov 330 gps
  USB: cdc-wdm: make module autoload work
  USB: Fix unneeded endpoint check in pxa27x_udc
  usb/gadget: fix kernel-doc warning
  USB: Speedtouch: add pre_reset and post_reset routines
  USB: usbtest.c: length, sglen and vary are unsigned, so cannot be negative
  USB: support Huawei data card product IDs
  USB: add ZTE MF626 USB GSM modem entry
  USB: storage: Avoid I/O errors when issuing SCSI ioctls to JMicron USB/ATA bridge
  USB: Fix debugfs_create_file's error checking method for usb/gadget/s3c2410_udc
  USB: ohci: add support for tmio-ohci cell
2008-10-23 10:09:50 -07:00
Linus Torvalds
9779a8325a Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb
* 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb: (47 commits)
  uwb: wrong sizeof argument in mac address compare
  uwb: don't use printk_ratelimit() so often
  uwb: use kcalloc where appropriate
  uwb: use time_after() when purging stale beacons
  uwb: add credits for the original developers of the UWB/WUSB/WLP subsystems
  uwb: add entries in the MAINTAINERS file
  uwb: depend on EXPERIMENTAL
  wusb: wusb-cbaf (CBA driver) sysfs ABI simplification
  uwb: document UWB and WUSB sysfs files
  uwb: add symlinks in sysfs between radio controllers and PALs
  uwb: dont tranmit identification IEs
  uwb: i1480/GUWA100U: fix firmware download issues
  uwb: i1480: remove MAC/PHY information checking function
  uwb: add Intel i1480 HWA to the UWB RC quirk table
  uwb: disable command/event filtering for D-Link DUB-1210
  uwb: initialize the debug sub-system
  uwb: Fix handling IEs with empty IE data in uwb_est_get_size()
  wusb: fix bmRequestType for Abort RPipe request
  wusb: fix error path for wusb_set_dev_addr()
  wusb: add HWA host controller driver
  ...
2008-10-23 08:20:34 -07:00
Dmitry Baryshkov
78c73414f4 USB: ohci: add support for tmio-ohci cell
Some Toshiba Mobile I/O chips have OHCI controller built in.
E.g. the tc6393xb chip found in several Toshiba e-Series PDAs
and in Sharp Zaurus SL-6000 PDA. This adds platform glue
to support OHCI function of the chip.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Acked-by: Ian Molton <spyro@f2s.com>
Cc: Ian Molton <spyro@f2s.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-22 10:05:27 -07:00
Linus Torvalds
a9b6148d25 USB: Fix unused label warnings in drivers/usb/host/ehci-hcd.c
This gets rid of an annoying warning in ehci-hcd.c when DEBUG isn't
enabled:

    warning: label 'err_debug' defined but not used

by moving it inside the already-existing #ifdef DEBUG, so that it
matches the goto.  And now my regular build is warning-free again.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 14:23:29 -07:00
David Vrabel
61e0e79ee3 Merge branch 'master' into for-upstream
Conflicts:

	Documentation/ABI/testing/sysfs-bus-usb
	drivers/Makefile
2008-10-20 16:07:19 +01:00
Greg Kroah-Hartman
802f389a2c USB: remove err() macro from more usb drivers
USB should not be having it's own printk macros, so remove err() and
use the system-wide standard of dev_err() wherever possible.  In the
few places that will not work out, use a basic printk().

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:14 -07:00
Greg Kroah-Hartman
5909f6ea2b USB: remove info() macro from remaining usb drivers
USB should not be having it's own printk macros, so remove info() and
use the system-wide standard of dev_info() wherever possible.  In the
few places that will not work out, use a basic printk().

Clean up the remaining usages of this in the drivers/usb/ directory.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:09 -07:00
Alan Stern
71b7497c07 USB: OHCI: fix endless polling behavior
This patch (as1149) fixes an obscure problem in OHCI polling.  In the
current code, if the RHSC interrupt status flag turns on at a time
when RHSC interrupts are disabled, it will remain on forever:

	The interrupt handler is the only place where RHSC status
	gets turned back off;

	The interrupt handler won't turn RHSC status off because it
	doesn't turn off status flags if the corresponding interrupt
	isn't enabled;

	RHSC interrupts will never get enabled because
	ohci_root_hub_state_changes() doesn't reenable RHSC if RHSC
	status is on!

As a result we will continue polling indefinitely instead of reverting
to interrupt-driven operation, and the root hub will not autosuspend.
This particular sequence of events is not at all unusual; in fact
plugging a USB device into an OHCI controller will usually cause it to
occur.

Of course, this is a bug.  The proper thing to do is to turn off RHSC
status just before reading the actual port status values.  That way
either a port status change will be detected (if it occurs before the
status read) or it will turn RHSC back on.  Possibly both, but that
won't hurt anything.

We can still check for systems in which RHSC is totally broken, by
re-reading RHSC after clearing it and before reading the port
statuses.  (This re-read has to be done anyway, to post the earlier
write.)  If RHSC is on but no port-change statuses are set, then we
know that RHSC is broken and we can avoid re-enabling it.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:04 -07:00
Alan Stern
eafe5b99f2 USB: EHCI: fix remote-wakeup support for ARC/TDI core
This patch (as1147) fixes the remote-wakeup support for EHCI
controllers using the ARC/TDI "embedded-TT" core.  These controllers
turn off the RESUME bit by themselves when a port resume is complete;
hence we need to keep separate track of which ports are suspended or
in the process of resuming.

The patch also makes a couple of small improvements in ehci_irq(),
replacing reads of the command register with the value already stored
in a local variable.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Thomas Reitmayr <treitmayr@devbase.at>
CC: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:03 -07:00
Alan Stern
9beeee6584 USB: EHCI: log a warning if ehci-hcd is not loaded first
This patch (as1139) adds a warning to the system log whenever ehci-hcd
is loaded after ohci-hcd or uhci-hcd.  Nowadays most distributions are
pretty good about not doing this; maybe the warning will help convince
anyone still doing it wrong.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>  [2.6.27]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:03 -07:00
Alan Stern
2b70f07343 USB: EHCI, OHCI, UHCI: remove version numbers
This patch (as1145) removes the essentially useless driver-version
strings from ehci-hcd, ohci-hcd, and uhci-hcd.  It also unifies the
form of the banner lines they display upon loading and adds a missing
test for usb_disabled() to ehci-hcd.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:02 -07:00
Julien Brunel
ce5dee50ed USB: isp1760: Use an IS_ERR test rather than a NULL test
In case of error, the function isp1760_register returns an ERR
pointer, but never returns a NULL pointer. So after a call to this
function, a NULL test should be replaced by an IS_ERR test. Moreover,
we have noticed that:
(1) the result of isp1760_register is assigned through the function
pci_set_drvdata without an error test,
(2) if the call to isp1760_register fails, the current function
(isp1761_pci_probe) returns 0, and if it succeeds, it returns -ENOMEM,
which seems odd.

Thus, we suggest to move the test before the call to pci_set_drvdata
to correct (1), and to turn it into a non IS_ERR test to correct (2).

The semantic match that finds this problem is as follows: 
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@bad_null_test@
expression x,E;
statement S1, S2;
@@
x =  isp1760_register(...)
... when != x = E
* if (x == NULL)
S1 else S2
// </smpl>

Signed-off-by: Julien Brunel <brunel@diku.dk>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:02 -07:00
Yi Yang
f0d781d59c USB: improve ehci_watchdog's side effect in CPU power management
ehci_watchdog will wake up CPU very frequently so that CPU
stays at C3 very short, average residence time is about 50
ms on Aspire One, but we expect it should be about 1 second
or more, so this kind of periodic timer is very bad for power
saving.

We can't remove this timer because of some bad USB controller
chipset, but at least we should reduce its side effect to as
possible as low.

This patch can make CPU stay at C3 longer, average residence time
is about twice as long as original. 

Please consider to apply it, thanks

Signed-off-by: Yi Yang <yi.y.yang@intel.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:02 -07:00
Alan Stern
e58dcebcd8 USB: UHCI: improve scheduling of interrupt URBs
This patch (as1140) adds a little intelligence to the interrupt-URB
scheduler in uhci-hcd.  Right now the scheduler is stupid; every URB
having the same period is assigned to the same slot.  Thus a large
group of period-N URBs can fill their slot and cause -ENOSPC errors
even when all the lower-period slots are empty.

With the patch, if an URB doesn't fit in its assigned slot then the
scheduler will try using lower-period slots.  This will provide
greater flexibility.  As an example, the driver will be able to handle
more than just three or four mice, which the current driver cannot.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:01 -07:00
Tony Lindgren
9b466c3b82 USB: ohci-omap: handle other omap15xx chips
Sync up USB parts of the ohci-omap support in mainline with the OMAP tree.
This patch supports another first generation OMAP1 part: not just the
OMAP 1510 (and its catalog version, the OMAP 5910), but also OMAP 310.

From: Tony Lindgren <tony@atomide.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:59 -07:00
Kumar Gala
cede969fe2 usb: remove code associated with !CONFIG_PPC_MERGE
Now that arch/ppc is gone we don't need CONFIG_PPC_MERGE anymore remove
the dead code associated with !CONFIG_PPC_MERGE.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:57 -07:00
Ming Lei
3c4bb71f96 USB: ehci-dbg: fix reading less content of periodic file
This patch fix 2 problems about reading periodic file:

1. The "..." after a interrupt qh is missed because buffer pointer is
   not moved.

2. After setting p.ptr as NULL, its next qh or itd will be omited and
   can't be stored in debug buffer.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:57 -07:00
Ming Lei
3c04e20ea9 USB: ehci-dbg: increase debug buffer size for periodic file
This patch is based on the following ideas:

1. Some usb devices (such as usb video class) have endpoints of high
   interval attribute, so reading "periodic" file need more debug buffer
   to accommodate the qh or itd schedule information.  For example, 4KB
   buffer is not enough for a single interrupt qh of 2ms period.

2. print a %p need 16 byte buffer on 64-bits arch, but 8 byte on 32-bits
   arch. Add a extra bonus for 64-bits arch.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:57 -07:00
Alan Stern
4a511bc3f5 OHCI: Allow broken controllers to auto-stop
This patch (as1134) attempts to improve the way we handle OHCI
controllers with broken Root Hub Status Change interrupt support.  In
these controllers the RHSC interrupt bit essentially never turns off,
making RHSC interrupts useless -- they have to remain permanently
disabled.

Such controllers should still be allowed to turn off their root hubs
when no devices are attached.  Polling for new connections can
continue while the root hub is suspended.  The patch implements this
feature.  (It won't have much effect unless CONFIG_PM is enabled and
CONFIG_USB_SUSPEND is disabled, but since the overhead is very small
we may as well do it.)

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:54 -07:00
Marc Zyngier
2714021937 USB: Let some USB host controllers get IRQ flags from resource
[This version fixes a thinko in the r8a66597 driver]

This patch let a few discrete USB host controllers drivers (isp116x-hcd,
r8a66597-hcd and sl811-hcd) obtain IRQ flags from their IORESOURCE_IRQ
resource if configured as such, much like it's been done for the smc91x
driver.

It spares people writing support for specific boards the burden to
configure the interrupt controller independantly, and keeps all IRQ
related information in a single resource.

HCD that are integrally part of a SoC have been left aside, as there
is probably no "wiring" options...

Tested on an Xscale PXA-255 based platform with isp116x-hcd.

Signed-off-by: Marc Zyngier <marc.zyngier@altran.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:40:52 -07:00
Linus Torvalds
c813b4e16e Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (46 commits)
  UIO: Fix mapping of logical and virtual memory
  UIO: add automata sercos3 pci card support
  UIO: Change driver name of uio_pdrv
  UIO: Add alignment warnings for uio-mem
  Driver core: add bus_sort_breadthfirst() function
  NET: convert the phy_device file to use bus_find_device_by_name
  kobject: Cleanup kobject_rename and !CONFIG_SYSFS
  kobject: Fix kobject_rename and !CONFIG_SYSFS
  sysfs: Make dir and name args to sysfs_notify() const
  platform: add new device registration helper
  sysfs: use ilookup5() instead of ilookup5_nowait()
  PNP: create device attributes via default device attributes
  Driver core: make bus_find_device_by_name() more robust
  usb: turn dev_warn+WARN_ON combos into dev_WARN
  debug: use dev_WARN() rather than WARN_ON() in device_pm_add()
  debug: Introduce a dev_WARN() function
  sysfs: fix deadlock
  device model: Do a quickcheck for driver binding before doing an expensive check
  Driver core: Fix cleanup in device_create_vargs().
  Driver core: Clarify device cleanup.
  ...
2008-10-16 12:40:26 -07:00
Arjan van de Ven
5172046d96 usb: turn dev_warn+WARN_ON combos into dev_WARN
dev_WARN is both compacter and gives better debug information
than just a WARN_ON, since people and tools will copy the device
information message together with the WARN_ON in bug reports.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-16 09:24:50 -07:00
Russell King
2502991560 Merge branch 'fixes' into for-linus
Conflicts:

	arch/arm/mach-versatile/core.c
2008-10-15 23:16:07 +01:00
Russell King
7e69a8c4d0 Merge branch 's3c-move' into devel
Conflicts:

	arch/arm/mach-versatile/core.c
2008-10-14 22:24:51 +01:00
Russell King
b6825d2df5 Merge branch 'omap-all' into devel
Conflicts:

	arch/arm/mach-omap2/gpmc.c
	arch/arm/mach-omap2/irq.c
2008-10-14 22:24:42 +01:00
Linus Torvalds
2be4ff2f08 Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: (49 commits)
  pcmcia: ioctl-internal definitions
  pcmcia: cistpl header cleanup
  pcmcia: remove unused argument to pcmcia_parse_tuple()
  pcmcia: card services header cleanup
  pcmcia: device_id header cleanup
  pcmcia: encapsulate ioaddr_t
  pcmcia: cleanup device driver header file
  pcmcia: cleanup socket services header file
  pcmcia: merge ds_internal.h into cs_internal.h
  pcmcia: cleanup cs_internal.h
  pcmcia: cs_internal.h is internal
  pcmcia: use dev_printk for cs_error()
  pcmcia: remove CS_ error codes alltogether
  pcmcia: deprecate CS_BAD_TUPLE
  pcmcia: deprecate CS_BAD_ARGS
  pcmcia: deprecate CS_BAD_BASE, CS_BAD_IRQ, CS_BAD_OFFSET and CS_BAD_SIZE
  pcmcia: deprecate CS_BAD_ATTRIBUTE, CS_BAD_TYPE and CS_BAD_PAGE
  pcmcia: deprecate CS_NO_MORE_ITEMS
  pcmcia: deprecate CS_IN_USE
  pcmcia: deprecate CS_CONFIGURATION_LOCKED
  ...

Fix trivial conflict in drivers/pcmcia/ds.c manually
2008-10-13 14:12:40 -07:00
Ingo Molnar
8daf14cf56 Merge branches 'x86/xen', 'x86/build', 'x86/microcode', 'x86/mm-debug-v2', 'x86/memory-corruption-check', 'x86/early-printk', 'x86/xsave', 'x86/ptrace-v2', 'x86/quirks', 'x86/setup', 'x86/spinlocks' and 'x86/signal' into x86/core-v2 2008-10-12 15:50:02 +02:00
Linus Torvalds
7cc4e87f91 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (236 commits)
  [ARM] 5300/1: fixup spitz reset during boot
  [ARM] 5295/1: make ZONE_DMA optional
  [ARM] 5239/1: Palm Zire 72 power management support
  [ARM] 5298/1: Drop desc_handle_irq()
  [ARM] 5297/1: [KS8695] Fix two compile-time warnings
  [ARM] 5296/1: [KS8695] Replace macro's with trailing underscores.
  [ARM] pxa: allow multi-machine PCMCIA builds
  [ARM] pxa: add preliminary CPUFREQ support for PXA3xx
  [ARM] pxa: add missing ACCR bit definitions to pxa3xx-regs.h
  [ARM] pxa: rename cpu-pxa.c to cpufreq-pxa2xx.c
  [ARM] pxa/zylonite: add support for USB OHCI
  [ARM] ohci-pxa27x: use ioremap() and offset for register access
  [ARM] ohci-pxa27x: introduce pxa27x_clear_otgph()
  [ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resource
  [ARM] ohci-pxa27x: move OHCI controller specific registers into the driver
  [ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registers
  [ARM] pxa: move I2S register and bit definitions into pxa2xx-i2s.c
  [ARM] pxa: simplify DMA register definitions
  [ARM] pxa: make additional DCSR bits valid for PXA3xx
  [ARM] pxa: move i2c register and bit definitions into i2c-pxa.c
  ...

Fixed up conflicts in
	arch/arm/mach-versatile/core.c
	sound/soc/pxa/pxa2xx-ac97.c
	sound/soc/pxa/pxa2xx-i2s.c
manually.
2008-10-11 10:09:45 -07:00
Vladimir Barinov
d6b52039c9 ALSA: Correct Vladimir Barinov's e-mail address
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-10-10 13:41:45 +02:00
David Vrabel
99ee3a6d45 Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb into for-upstream 2008-10-10 11:47:31 +01:00
Eric Miao
0c392ed9a7 [ARM] ohci-pxa27x: use ioremap() and offset for register access
This avoid the pre-mapping of OHCI controller register space, and the
mapping is made only when necessary (OHCI is probed).

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-07 19:12:58 +01:00
Eric Miao
0cb0b0d3c6 [ARM] ohci-pxa27x: introduce pxa27x_clear_otgph()
Direct access to pxa27x specific register PSSR in a generic ohci driver
is no good, introduce pxa27x_clear_otgph() and move the implementation
into processor specific code.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-07 19:12:58 +01:00
Eric Miao
84bab7393b [ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resource
Depending on the order of how resource is defined in the platform
device is not good, use platform_get_{irq,resource} for the IRQ
and memory resources.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-07 19:12:58 +01:00
Eric Miao
596050bc75 [ARM] ohci-pxa27x: move OHCI controller specific registers into the driver
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-07 19:12:57 +01:00
Eric Miao
097b53348f [ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registers
Direct access to USB host controller registers is considered to be not
portable, and is usually a bad sign for poorly abstracted interface.
Introduce .flags and .power_on_delay to "struct pxaohci_platform_data"
so that most platforms don't bother to write their own .init/.exit()
sequences.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-07 19:12:57 +01:00
David Brownell
01c1714265 USB: fix EHCI periodic transfers
As noted by Stefan Neis <Stefan.Neis@kobil.com>, we had a recent
regression with EHCI periodic transfers, in some (seemingly not
all that common) cases.

The root cause was that the schedule activation was only loosely
coupled to the addition or removal of transfers, so two different
execution contexts could both think they had to deactivate (or
conversely activate) the schedule.  So this fix tightens that
coupling, managing it more like a refcount.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-09-23 13:58:08 -07:00
David Brownell
0bcfeb3ec9 USB: ehci: fix some ehci hangs and crashes
I noticed that the "Refactor "if (handshake()) state = HC_STATE_HALT"
patch from earlier this year perpetuated a potential problem:  it can
mark the controller as halted when it's still running (but not acting
as, perhaps wrongly, expected).

That caused some hangs and crashes, rather than more polite failure
modes of a truly halted controller.  This patch forces a true halt,
and emits a (previously missing) diagnostic.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-09-23 13:58:06 -07:00
David Vrabel
6a7c3e464e uwb: depend on EXPERIMENTAL
The UWB stack has some sysfs APIs that will change thus it's best
marked as EXPERIMENTAL until these APIs are finalized.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:36 +01:00
Inaky Perez-Gonzalez
d09318b8ab wusb: add HWA host controller driver
Add a driver for Wireless USB host controllers connected via USB (a
Host Wire Adapter or HWA).

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:31 +01:00
David Vrabel
7e6133aa42 wusb: WHCI host controller driver
A driver for Wireless USB host controllers that comply with the
Wireless Host Controller Interface (HCI) specification as published by
Intel.

The latest publically available version of the specification (0.95) is
supported (except for isochronous transfers).

Build fixes by Randy Dunlap <rdunlap@xenotime.net>

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:31 +01:00
Russell King
55c381e489 [ARM] omap: convert OMAP drivers to use ioremap()
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-05 17:02:30 +01:00
Russell King
c3df1a2685 [ARM] omap: fix build error in ohci-omap.c
drivers/usb/host/ohci-omap.c: In function 'ohci_omap_init':
drivers/usb/host/ohci-omap.c:228: error: 'start_hnp' undeclared (first use in this function)

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-04 09:45:47 +01:00
Dominik Brodowski
d39bd56452 pcmcia: encapsulate ioaddr_t
By now, ioaddr_t should only be used by the deprecated ioctl, as it does not
correctly reflect the maximum ioport range at least on some architectures.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2008-08-29 09:43:14 +02:00
Dominik Brodowski
ad913c1192 pcmcia: pcmcia_config_loop() improvement by passing vcc
By passing the current Vcc setting to the pcmcia_config_loop callback
function, we can remove pcmcia_get_configuration_info() calls from many
drivers.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2008-08-23 01:22:52 +02:00
Dominik Brodowski
8e2fc39dde pcmcia: pcmcia_config_loop() default CIS entry handling
Many drivers use the default CIS entry within their pcmcia_config_loop()
callback function. Therefore, factor the default CIS entry handling out.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2008-08-23 01:22:00 +02:00