The error processing order was wrong.
This patch modify it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
It was necessary to check pipe condition after disable fifo.
Current driver checked it in a wrong place.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The Droids MuIn LCD operates like a serial remote terminal.
Data received are displayed directly on the LCD. This patch
fixes the kernel null pointer oops when it is plugged in.
Add NO_DATA_INTERFACE quirk to tell the driver that "control"
and "data" interfaces are not separated for this device, which
prevents dereferencing a null pointer in the device probe code.
Signed-off-by: Erik Slagter <erik@slagter.name>
Signed-off-by: Maxin B. John <maxin.john@gmail.com>
Tested-by: Erik Slagter <erik@slagter.name>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The Samsung's S3C2416, S3C2443 and S3C2450 includes a USB High-Speed
device controller module. This driver enables support for USB high-speed
gadget functionality for the Samsung S3C24xx SoC's that include this
controller.
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Alexander Neumann <alexander@bumpern.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Comparing an unsigned integer with greater than or equal to zero is
always true. So, it is safe to remove similar checks from
'f_mass_storage.c' and 'file_storage.c'
Signed-off-by: Maxin B. John <maxin.john@gmail.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
On amd64 unsigned is not as wide as pointer and this causes a compiler
warning. Switching to unsigned long corrects the problem.
Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The __devinit and __devexit macros were added to probe and remove
functions. The macros move the probe and remove functions to the
devinit and devexit sections
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Defer the SET_CONFIG and SET_INTERFACE control transfer's data/status
stages till we are ready to process new CBW from the host. This way we
ensure that we don't loose any CBW during MSC compliance tests and cause
lock up.
Signed-off-by: Roger Quadros <roger.quadros@nokia.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some USB function drivers (e.g. f_mass_storage.c) need to delay or defer the
data/status stages of standard control requests like SET_CONFIGURATION or
SET_INTERFACE till they are done with their bookkeeping and are actually ready
for accepting new commands to their interface.
They can now achieve this functionality by returning USB_GADGET_DELAYED_STATUS
in their setup handlers (e.g. set_alt()). The composite framework will then
defer completion of the control transfer by not completing the data/status stages.
This ensures that the host does not send new packets to the interface till the
function driver is ready to take them.
When the function driver that requested for USB_GADGET_DELAYED_STATUS is done
with its bookkeeping, it should signal the composite framework to continue with
the data/status stages of the control transfer. It can do so by invoking
the new API usb_composite_setup_continue(). This is where the control transfer's
data/status stages are completed and host can initiate new transfers.
The DELAYED_STATUS mechanism is currently only supported if the expected data phase
is 0 bytes (i.e. w_length == 0). Since SET_CONFIGURATION and SET_INTERFACE are the
only cases that will use this mechanism, this is not a limitation.
Signed-off-by: Roger Quadros <roger.quadros@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'for-usb-next' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/sarah/xhci:
xHCI 1.0: Max Exit Latency Too Large Error
xHCI 1.0: TT_THINK_TIME set
xHCI 1.0: Block Interrupts for Isoch transfer
xHCI 1.0: Isoch endpoint CErr field set
xHCI 1.0: Control endpoint average TRB length field set
xHCI 1.0: Setup Stage TRB Transfer Type flag
This is a new TRB Completion Code of the xHCI spec 1.0.
Asserted by the Evalute Context Command if the proposed Max Exit Latency would
not allow the periodic endpoints of the Device Slot to be scheduled.
Signed-off-by: Alex He <alex.he@amd.com>
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
xHCI 1.0 spec says the TT Think Time field shall be set to zero if the device
is not a High-speed hub.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Currently an isoc URB is divided into multiple TDs, and every TD will
trigger an interrupt when it's processed. However, software can schedule
multiple TDs at a time, and it only needs an interrupt every URB.
xHCI 1.0 introduces the Block Event Interrupt(BEI) flag which allows Normal
and Isoch Transfer TRBs to place an Event TRB on an Event Ring but not
assert an intrrupt to the host, and the interrupt rate is significantly
reduced and the system performance is improved.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
xHCI 1.0 specification specifies that CErr does not apply to Isoch endpoints
and shall be set to '0' for Isoch endpoints.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
xHCI 1.0 specification indicates that software should set Average TRB Length
to '8' for control endpoints.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Setup Stage Transfer Type field is added to indicate the presence and the
direction of the Data Stage TD, and determines the direction of the Status
Stage TD so the wLength length field should be ignored by the xHC.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Implement good battery algorithm defined in the battery charging V1.2 spec
for detecting different charging ports. USB hardware is put into low power
mode when connected to a dedicated charging port. vbus_draw and set_power
methods are implemented for determining the allowed current from Host in
different states (un-configured/suspend/configured).
The charger block is implemented using vendor specific registers and the
PHY used in MSM8960(28nm PHY) different from older targets like MSM8x60
and MSM7x30(45nm PHY). The PHY vendor and product id registers are not
implemented in the above chipsets. Hence PHY type is passed via platform
data.
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
HSUSB core clock is derived from daytona fabric clock and for
HSUSB operational require minimum core clock at 55MHz. Since, HSUSB
cannot tolerate daytona fabric clock change in the middle of HSUSB
operational, vote for maximum Daytona fabric clock
while usb is operational
Signed-off-by: Anji jonnala <anjir@codeaurora.org>
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds support for the UHCI part of the GRLIB GRUSBHC controller
found on some LEON/GRLIB SoCs.
The UHCI HCD previously only supported controllers connected over PCI.
This patch adds support for the first non-PCI UHCI HC. I have tried to
replicate the solution used in ehci-hcd.c.
Tested on GR-LEON4-ITX board (LEON4/GRLIB with GRUSBHC) and x86 with Intel
UHCI HC.
Signed-off-by: Jan Andersson <jan@gaisler.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch is part of a series that extend the UHCI HCD to support
non-PCI host controllers.
This patch also extends the uhci_{read,write}* functions to allow accesses
to registers not mapped into PCI I/O space. This extension also includes
the addition of a void __iomem pointer to the uhci structure.
A new Kconfig option is added to signal that the system has a non-PCI HC.
If this Kconfig option is set, uhci-hcd.c will include generic reset functions
for systems that do not make use of keyboard and mouse legacy support. PCI
controllers will still always use the reset functions from pci-quirks
This patch is followed by a patch that adds bus glue for the first non-PCI
UHCI HC.
Signed-off-by: Jan Andersson <jan@gaisler.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch is part of a series that extend the UHCI HCD to support
non-PCI controllers.
This patch replaces in{b,w,l} and out{b,wl} with calls to local inline
functions. This is done so that the register access functions can be
extended to support register areas not mapped in PCI I/O space.
Signed-off-by: Jan Andersson <jan@gaisler.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch is part of a series that extend the UHCI HCD to support
non-PCI controllers.
This patch moves PCI specific functions to uhci-pci.c and includes
this file in uhci-hcd.c. It also renames the function uhci_init to
uhci_pci_init.
uhci_init/uhci_pci_init is modified so that the port-detection logic
is kept in a new separate function uhci_count_ports() in uhci-hcd.c.
Signed-off-by: Jan Andersson <jan@gaisler.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch is part of a series that extend the UHCI HCD to support
non-PCI host controllers.
This patch fixes the following warnings from checkpatch:
ERROR: switch and case should be at the same indent
+ switch (to_pci_dev(uhci_dev(uhci))->vendor) {
+ default:
[...]
+ case PCI_VENDOR_ID_GENESYS:
[...]
+ case PCI_VENDOR_ID_INTEL:
WARNING: static char array declaration should probably be static const char
+ static char bad_Asus_board[] = "A7V8X";
WARNING: Use DEFINE_PCI_DEVICE_TABLE for struct pci_device_id
+static const struct pci_device_id uhci_pci_ids[] = { {
Signed-off-by: Jan Andersson <jan@gaisler.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch is part of a series that extend the UHCI HCD to support
non-PCI controllers.
This patch changes calls to uhci_reset_hc, uhci_check_and_reset_hc,
configure_hc, resume_detect_interrupts_are_broken and
global_suspend_mode_is_broken so that they are made through pointers
in the uhci hcd struct. This will allow these functions to be replaced
with bus/arch specific functions.
Signed-off-by: Jan Andersson <jan@gaisler.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch is part of a series that extend the UHCI HCD to support
non-PCI host controllers.
uhci-hub.c contained two PCI vendor checks for silicon quirks. Move
these checks into uhci-hcd.c and use bits in uhci_hcd structure to
mark that we need to use the quirks.
This patch is followed by other patches that will remove PCI
dependencies from uhci-hcd.c as well.
Signed-off-by: Jan Andersson <jan@gaisler.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Though USB controller works without this most of the time, an issue was faced
where USB was configured as printer device and it was dropping first
packet(64 bytes) in full speed mode due to DATA PID mismatch.
The problem gets resolved once unused endpoints are configured as bulk.
As per P1020 RM (Table17-31, bits 19-18, bits 3-2) "When only one endpoint
(RX or TX, but not both) of an endpoint pair is used, the unused endpoint
should be configured as a bulk type endpoint." So according to the RM,
this patch is initializing TX and RX endpoints as bulk type
Signed-off-by: Suchit Lepcha <Suchit.Lepcha@freescale.com>
Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes the checkpatch errors ans warnings listed below:
ERROR: do not use assignment in if condition
WARNING: line over 80 characters
WARNING: braces {} are not necessary for single statement blocks
WARNING: space prohibited between function name and open parenthesis '('
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Remove a stray 'return 0' at the top of the suspend callback,
and move au1xxx_stop_ehc() out of the ehci spinlock since it takes
some time to complete.
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Commit 3dacdf11 "usb: factor out state_string() on otg drivers"
broke building musb drivers since there is already another
otg_state_string() function in musb drivers, but with different
prototype. Fix musb drivers to use common otg_state_string(), too.
Also provide a nop for otg_state_string() if CONFIG_USB_OTG_UTILS
is not defined.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Saves about 50KB of data.
Old/new size of all objects:
text data bss dec hex filename
563015 80096 130684 773795 bcea3 (TOTALS)
610916 32256 130632 773804 bceac (TOTALS)
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be> (for drivers/net/can/softing/softing_cs.c)
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This patch adds support for the GRLIB GRUSBHC EHCI controller from
Aeroflex Gaisler. The controller is typically found on LEON/GRLIB
SoCs.
Tested on GR-LEON4-ITX with with little endian interface and on
LEON3 system on GR-PCI-XC5V development board for big endian
controller.
Signed-off-by: Jan Andersson <jan@gaisler.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The two first HC capability registers (CAPLENGTH and HCIVERSION)
are defined as one 8-bit and one 16-bit register. Most HC
implementations have selected to treat these registers as part
of a 32-bit register, giving the same layout for both big and
small endian systems.
This patch adds a new quirk, big_endian_capbase, to support
controllers with big endian register interfaces that treat
HCIVERSION and CAPLENGTH as individual registers.
Signed-off-by: Jan Andersson <jan@gaisler.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch clears PORT_PLC if xhci_bus_resume() resumes a previous suspended
port, because if a port transition from U3 to U0 state, it will report a
port link state change, and software should clear the corresponding PLC bit.
It also uses hcd->speed to check if a port is a USB2 protocol port.
The patch fixes the issue that USB keyboard can not wakeup system from
hibernation.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
The current code is clearing in_lpm flag after enabling the IRQ.
If IRQ comes immediately before in_lpm flag is set, it thinks that
hardware is in low power mode and disables the IRQ. Fix this by
clearing in_lpm flag before enabling the IRQ.
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some of the simulators may cache the ep0 maxpacket size to zero
if the ep0 dQh is not setup before enabling the pullup. Hence
Setup ep0 and initialize the dQh fields once while registering the
gadget(before enabling the pullup).
HSUSB Chipidea link controller spec says ep0 is enabled always
in the HW. Hence disabling and enabling the ep0 as a part of
reset interrupt is unneccesary.
Remove the disable/enable ep0 logic from reset interrupt handling.
Signed-off-by: Anji jonnala <anjir@codeaurora.org>
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The current code queue the control OUT data request to ep0in instead of
ep0out. Check ep0_dir and use the correct control endpoint.
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The OUT endpoints are stored in 0 - hw_ep_max/2 and IN endpoints are
stored from hw_ep_max/2 - hw_ep_max in ci13xxx_ep array. Retrieve
the IN endpoint correctly while processing endpoint feature requests.
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ask for vbus_draw regulator before registering tranceiver to disallow possible
race between registration and set_power/etc.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Added several new devices to ldusb and excluded them from the HID driver.
Signed-off-by: Michael Hund <mhund@ld-didactic.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The reset value of the uSOF cycle period is incorrect. Set it to
60,000 bits. Without this, several commercial USB flash memory
devices and hubs fail to work properly.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The UCTL clock initialization will cause the ehci and ohci blocks to
become inoperable if the clocks are reinitialized.
Check to see if the clocks have already been initialized.
Also use a mutex to protect the clock initialization code so that
there can be no attempt to use the clocks before they are fully
configured.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes a bug in my previous (2.6.38) patch series which caused
urb->status value to be wrong after unlink (broke usbtest 11, 12).
Signed-off-by: Arvid Brodin <arvid.brodin@enea.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'for-usb-next' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/sarah/xhci:
xhci 1.0: Set transfer burst last packet count field.
xhci 1.0: Set transfer burst count field.
xhci 1.0: Update TD size field format.
xhci 1.0: Only interrupt on short packet for IN EPs.
xhci: Remove sparse warning about cmd_status.
usbcore: warm reset USB3 port in SS.Inactive state
usbcore: Refine USB3.0 device suspend and resume
xHCI: report USB3.0 portstatus comply with USB3.0 specification
xHCI: Set link state support
xHCI: Clear link state change support
xHCI: warm reset support
usb/ch9: use proper endianess for wBytesPerInterval
xhci: Remove recursive call to xhci_handle_event
xhci: Add an assertion to check for virt_dev=0 bug.
xhci: Add rmb() between reading event validity & event data access.
xhci: Make xHCI driver endian-safe
This patch replaces the code that handles qtds. Intead of directly allocating
chip mem and chip slot, enqueue the transfer in a list of queue heads. Use
a centralized function enqueue_qtds() to prioritize and enqueue transfers.
This removes all of the interrupt context BUG() calls when out of chip
mem or transfer slots. It also makes it possible to efficiently use the
dual-port mem on the chip for double-buffered transfers, which improve
transfer times to/from/between usb sticks by about 40 % on my HW.
With this patch it should also be possible to handle qtd scheduling outside
of the interrupt handler, for significantly improved kernel latency. I have
not implemented this since there are some locking issues which I haven't
had time to look at.
Signed-off-by: Arvid Brodin <arvid.brodin@enea.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes a bug in my previous (2.6.38) patch series which caused
urb->status value to be wrong after unlink (broke usbtest 11, 12).
Signed-off-by: Arvid Brodin <arvid.brodin@enea.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Since we always set the OR flag for each transfer, we can just as well set all
these bits to 1 at init and be done with it. Also, HcBufferStatus can be set
at init as per the ISP1761 datasheet page 47 with no loss of performance.
Signed-off-by: Arvid Brodin <arvid.brodin@enea.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This collects urb enqueue code that was spread out all over the place
into a couple of more readable functions.
Signed-off-by: Arvid Brodin <arvid.brodin@enea.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This removes the "qh is 0" printout. qh == NULL if the urb has
been unlinked, so this condition is normal.
Signed-off-by: Arvid Brodin <arvid.brodin@enea.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
When File Storage gadget receives SET CONFIGURATION request it tries
to cancel all pending transfers. If some request is in progress,
gadget waits for its completion. This commit allows gadget to dequeue
invalid requests in progress left after reset.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Reviewed-by: Kyoungil Kim<ki0351.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The following should be done for requests after endpoint stall
condition is cleared:
1) 'in progress' request (if any) should be completed since
Tx FIFO was flushed;
2) next request from queue (if any) should be started.
This commit does that.
Additionally set/clear stall condition code is fixed.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Reviewed-by: Kyoungil Kim<ki0351.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
UDC driver does not need to generate reply to host if request is
delivered to gadget. This is gadget's responsibility. This commit
fixes that.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Reviewed-by: Kyoungil Kim<ki0351.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit does the following:
1) clears all pending interrupts before unmasking;
2) clears interrupts as soon as possible to avoid missing
next coming that may occur during handling;
3) removes ineffective interrupt cleaning code.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Reviewed-by: Kyoungil Kim<ki0351.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Slightly reworked and cleaned up driver from Freescale LTIB
for MPC5121E. The driver has been ported to the current kernel,
proc interface "/proc/driver/fsl_usb2_otg" has been replaced by
sysfs interface.
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Extend the FSL UDC driver to support MPC5121E DR USB Controller
operation in device mode. Add MPC5121E specific init/uninit
at probe and remove and isolate system interface register accesses
when running on MPC5121E SoC, as these registers are not available
on this platform. This patch relies on previous patch for supporting
big endian registers and descriptors access in the FSL UDC driver.
Additionally support endpoint FIFO status operation by providing
appropriate callback in endpoint ops structure.
Also flush cache for the req buffer used for GetStatus reply.
Without this, the correct reply to an endpoint GetStatus
is written to 'req', but doesn't make it out to the USB bus
since the buffer hasn't been flushed. This would cause the
USBCV Halt Endpoint test to fail (according to changelog in
Freescale LTIB driver code).
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
On some SoCs, the USB controller registers and descriptors can be big
or little endian, depending on the version of the chip. In order to be
able to run the same kernel binary on different versions of an SoC, the
BE/LE decision must be made at run time. Provide appropriate register
and descriptor accessors which are configurable at run time using the
configuration flags from fsl_usb2_platform_data data structure.
This is in preparation for adding support for MPC5121E DR USB2 Controller
to the FSL UDC driver.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
When only FSL USB gadget driver is selected in the kernel
configuration the MPH DR OF driver for creation of FSL
USB platform devices from device tree won't be built.
As a result no USB platform devices for MPH DR USB controller
will be created at run time and no probing will be done in
the fsl_udc_core driver.
Add an entry to the Makefile to build the MPH DR OF
platform driver if CONFIG_USB_FSL_MPH_DR_OF is defined.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The xHCI 1.0 specification defines a new isochronous TRB field, called
transfer burst last packet count (TBLPC). This field defines the number
of packets in the last "burst" of packets in a TD. Only SuperSpeed
endpoints can handle more than one burst, so this is set to the number for
packets in a TD for all non-SuperSpeed devices (minus one, since the field
is zero based).
This patch should have no effect on host controllers that don't advertise
the xHCI 1.0 (0x100) version number in their hci_version field.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
The xHCI 1.0 specification adds a new field to the fourth dword in an
isochronous TRB: the transfer burst count (TBC). This field is only
non-zero for SuperSpeed devices. Each SS endpoint sets the bMaxBurst
field in the SuperSpeed endpoint companion descriptor, which indicates how
many max-packet-sized "bursts" it can handle in one service interval. The
device driver may choose to burst less max packet sized chunks each
service interval (which is defined by one TD). The xHCI driver indicates
to the host controller how many bursts it needs to schedule through the
transfer burst count field.
This patch will only effect xHCI hosts that advertise 1.0 support (0x100)
in the HCI version field of their capabilities register.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
The xHCI 1.0 specification changes the format of the TD size field in
Normal and Isochronous TRBs. The field in control TRBs is still set to
reserved zero. Instead of representing the number of bytes left to
transfer in the TD (including the current TRB's buffer), it now represents
the number of packets left to transfer (*not* including this TRB).
See section 4.11.2.4 of the xHCI 1.0 specification for details. The math
is basically copied straight from there.
Create a new function, xhci_v1_0_td_remainder(), that should be called for
all xHCI 1.0 host controllers. The field location and maximum value is
still the same, so reuse the old function, xhci_td_remainder(), to handle
the bit shifting.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
It doesn't make sense to set the interrupt on short packet (TRB_ISP) flag
for TRBs queued to endpoints that only receive packets from the host
controller (i.e. OUT endpoints). Packets can only be short when they are
sent from a USB device. Plus, the xHCI 1.0 specification forbids setting
the flag for anything but IN endpoints.
While we're at it, remove some of my snide remarks about the inefficiency
of event data TRBs.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Sparse complains about the arguments to xhci_evaluate_context_result() and
xhci_configure_endpoint_result():
CHECK drivers/usb/host/xhci.c
drivers/usb/host/xhci.c:1647:53: warning: incorrect type in argument 3 (different signedness)
drivers/usb/host/xhci.c:1647:53: expected int *cmd_status
drivers/usb/host/xhci.c:1647:53: got unsigned int [usertype] *[assigned] cmd_status
drivers/usb/host/xhci.c:1648:50: warning: incorrect type in argument 3 (different signedness)
drivers/usb/host/xhci.c:1648:50: expected int *cmd_status
drivers/usb/host/xhci.c:1648:50: got unsigned int [usertype] *[assigned] cmd_status
The command status is taken from the command completion event TRB, and
will always be a positive number. Change the signature of
xhci_evaluate_context_result() and xhci_configure_endpoint_result() to
take a u32 for cmd_status.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Some USB3.0 devices go to SS.Inactive state when hot plug to USB3 ports.
Warm reset the port to transition it to U0 state.
This patch fixes the issue that Kingston USB3.0 flash drive can not be
recognized when hot plug to USB3 port.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
In the past, we use USB2.0 request to suspend and resume a USB3.0 device.
Actually, USB3.0 hub does not support Set/Clear PORT_SUSPEND request,
instead, it uses Set PORT_LINK_STATE request. This patch makes USB3.0 device
suspend/resume comply with USB3.0 specification.
This patch fixes the issue that USB3.0 device can not be suspended when
connected to a USB3.0 external hub.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
USB3.0 specification has different wPortStatus and wPortChange definitions
from USB2.0 specification. Since USB3 root hub and USB2 root hub are split
now and USB3 hub only has USB3 protocol ports, we should modify the
portstatus and portchange report of USB3 ports to comply with USB3.0
specification.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This patch adds support for Set Port Feature(PORT_LINK_STATE) request.
The most significant byte (bits 15..8) of the wIndex field specifies
the U state the host software wants to put the link connected to the
port into. This request is only valid when the PORT_ENABLE bit is set
and the PORT_LINK_STATE should not be above value '5' (Rx.Detect).
This request will be later used to replace the set/clear suspend USB3
protocol ports in hub driver.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This patch adds support for Clear Port Feature(C_PORT_LINK_STATE)
request from usbcore.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This patch adds warm reset support to xhci hub control.
It handles Set Port Feature(BH_PORT_RESET) and Clear Port Feature
(C_BH_PORT_RESET) request from usbcore.
Note warm reset is called BH reset some places in USB3.0 specification.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
while going through Tatyana's changes for the gadget framework I noticed
that this type is not defined as __le16.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Make the caller loop while there are events to handle, instead.
Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
During a "plug-unplug" stress test on an NEC xHCI card, a null pointer
dereference was observed. xhci_address_device() dereferenced a null
virt_dev (possibly an erroneous udev->slot_id?); this patch adds a WARN_ON &
message to aid debug if it can be recreated.
Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
On weakly-ordered systems, the reading of an event's content must occur
after reading the event's validity.
Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This patch changes the struct members defining access to xHCI device-visible
memory to use __le32/__le64 where appropriate, and then adds swaps where
required. Checked with sparse that all accesses are correct.
MMIO accesses use readl/writel so already are performed LE, but prototypes
now reflect this with __le*.
There were a couple of (debug) instances of DMA pointers being truncated to
32bits which have been fixed too.
Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Provide common otg_state_string() and use
it in drivers.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
in case of ehci phy mode; regulator of phy
should be enabled before initializing the
usbhs core driver.
Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Tested-by: Steve Calfee <stevecalfee@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
If cable is not connected to peripheral only board when initializing the
gadget driver, then runtime pm calls are out-of-sync and the musb cannot
idle with omap2430.c. This was noted on Nokia N900 where musb prevented the
CPU to be able to enter deeper retention idle state.
This was working in 2.6.38 before runtime pm conversions but there musb
smart standby/idle modes were configured statically where they are now
updated runtime depending on use and cable status.
Reason for out-of-sync is that runtime pm is activated in function
musb_gadget.c: usb_gadget_probe_driver but suspended only in OTG mode if
cable is not connected when initializing. In peripheral only mode this leads
to out-of-sync runtime pm since runtime pm remain active and is activated
another time in omap2430.c: musb_otg_notifications for VBUS Connect event
and thus cannot suspend for VBUS Disconnect event since the use count remains
active.
Fix this by moving cable status check and pm_runtime_put call in
usb_gadget_probe_driver out of is_otg_enabled block.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Recent runtime pm and hwmod conversions for 2.6.39 broke the musb peripheral
mode OMAP retention idle on boards where the board mode in struct
musb_hdrc_platform_data is set to MUSB_PERIPHERAL.
These conversions changed the way how the OTG_SYSCONFIG register is
configured and used in runtime. Before 2.6.39 smart standby/idle modes were
activated statically in OTG_SYSCONFIG. Those modes allow that the musb is
able to idle when peripheral device is not connected to host.
In 2.6.39 the OTG_SYSCONFIG is updated runtime depending on VBUS status.
No standby/idle modes are used when device is connected and force
standby/idle when disconnected.
Unfortunately VBUS disconnect event that handles the disconnect case lets
the peripheral musb to idle only when board mode is MUSB_OTG. Fix this by
checking the peripheral mode also.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The isd200 sub-driver increments the command serial number despite not
using it at all in it's routine for sending internal scsi commands.
Remove the increment to prepare for removing the serial_number field.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Commit b02d0ed677 ('xhci: Change
hcd_priv into a pointer') added calls to kzalloc() and kfree() in
xhci-pci.c. On most architectures <linux/slab.h> is indirectly
included, but on some it is not.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>,
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The usb_create_sysfs_intf_files() function always returned zero even
if it failed to create sysfs fails. Since this is a desired behaviour
there is no need to return return code at all. This commit changes
function's return type (form int) to void.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1452b) adds a new test case to the usbtest driver. Test
24 exercises the unlink-from-queue pathways in the host. It queues a
user-specified number of bulk-OUT URBs of user-specified size, unlinks
the fourth- and second-from-last URBs in the queue, and then waits to
see if all the URBs complete in the expected way (except of course
that the unlinked URBs might complete normally, if they weren't
unlinked soon enough).
This new test has confirmed the existence of a bug in the ehci-hcd
driver, to be fixed by a separate patch.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tegra USB1 port needs to issue Port Reset twice internally, otherwise it
fails to enumerate devices attached to it
Signed-off-by: Jim Lin <jilin@nvidia.com>
Signed-off-by: Olof Johansson <olofj@chromium.org>
[ squash two patches into one and minor style cleanups ]
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch uses the resource_size help function instead of
manually calculating the resource size. It can reduce the chance
of introducing off-by-one errors.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The __devinit and __devexit macros were added to probe and remove
functions. The macros move the probe and remove functions to the
devinit and devexit sections.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit fixes an embarrassing bug in the "storage_common:
use kstrto*()" patch which caused fsg_store_ro() to return
zero instead of the length of the consumed buffer.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
the_controller is allocated in dummy_hcd_probe() and is NULL if the
allocation failed. The probe function of the udc driver is dereferencing
this pointer and fault.
Alan Stern suggested to abort the dummy_hcd driver probing so the module
is not loaded. The is abort-on-error has been also added to the udc
driver.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
If USB type detections fails, we run into default and return 0.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Current renesas_usbhs was designed to save power when USB is not connected.
And it assumed platform uses callback to notify connection/disconnection
by external interrupt.
But some SuperH / platform board doesn't have such feature.
This patch adds autonomy mode which detect USB connection/disconnection
by internal interrupt.
But power will be always ON when autonomy mode is selected.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This delay is used to overjump debounce.
And, this patch also move usbhsc_drvcllbck_notify_hotplug to global,
because it will be called from other files.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
usbhs_status_get_each_irq/usbhs_irq_callback_update might be called
with mod == NULL
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
usbhs_pdev_to_priv function will be used in other files.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The callback function which is called from platform must be removed
if module removed.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There are some USB Host which doesn't notice disconnection at once.
And it might try some request after reconnection with old settings.
Current renesas_usbhs will crash in such case.
This patch prevent this issue.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Current renesas_usbhs driver was using spin_trylock to avoid
dead lock / nest lock.
But acording to CONFIG_DEBUG_SPINLOCK, it is BUG under UP environment.
This patch add usbhsg_trylock to avoid this issue.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Because pipe buffer allocation is very picky and difficult,
current renesas_usbhs driver is not caring pipe re-allocation.
In this situation, driver will create new pipe without caring old pipe
if "usbhsg_ep_enable" is called after "usbhsg_ep_disable" on current driver.
This mean the limited pipe and buffer will be used as waste.
But it is possible to re-use same buffer to same pipe.
By this patch, driver will initialize pipe when it detected new connection or
new gadget, and doesn't try re-allocation for same pipe in above case.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Pipe buffer should be cleaned before using it,
but should NOT be cleaned in pipe "prepare" function.
Because the pipe might be working in such timing.
This patch fixup this issue.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
g_printer reqiured "set interface" request from host. Not all hosts send
this request. This patch enable the interface when it get "set
configuration" request from host.
Signed-off-by: Jonas Andersson <jonas@microbit.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Stripping the direction bit off will produce an
invalid descriptor.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The current code doesn't set it, so linux complains about
it when connected, and ignores the device:
[104611.068082] usb 1-5: new high speed USB device using ehci_hcd and address 127
[104611.088368] usb 1-5: Invalid ep0 maxpacket: 0
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Current code returns 0 even if it can't handle the request.
This leads to timeouts when an unhandled request is sent:
Bus 001 Device 003: ID 0525:c0de Netchip Technology, Inc.
Device Descriptor:
[..]
can't get device qualifier: Connection timed out
[..]
change the code to return EOPNOTSUPP in such cases.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Network interface is handled by upcoming gt_b3730 module.
Removed "GT-B3710" from comment, it is another modem with another USB ID.
Signed-off-by: Marius B. Kotsbak <marius@kotsbak.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch
- ensures no IO takes place during resets
- reports resets to user space
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes a problem where data received from the gps is sometimes
transferred incompletely to the serial port. If used in native mode now
all data received via the bulk queue will be forwarded to the serial
port.
Signed-off-by: Hermann Kneissel <herkne@gmx.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Adding support for the TavIR STK500 (id 0403:FA33)
Atmel AVR programmer device based on FTDI FT232RL.
Signed-off-by: Benedek László <benedekl@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tested on my phone, the ttyUSB device is created and is fully
functional.
Signed-off-by: Elizabeth Jennifer Myers <elizabeth@sporksirc.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds 4 device IDs for CP2102 based devices manufactured by
AC-Services. See http://www.ac-services.eu for further info.
Signed-off-by: Craig Shelley <craig@microtron.org.uk>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Using C line continuation inside format strings is error prone.
Clean up the unintended whitespace introduced by misuse of \.
Neaten correctly used line continations as well for consistency.
drivers/scsi/arcmsr/arcmsr_hba.c has these errors as well,
but arcmsr needs a lot more work and the driver should likely be
moved to staging instead.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This reverts commit 806e8f8fcc.
To quote Alan Stern:
The necessity for this patch has been under discussion.
It turns out the UDC that Mian has been working on and Felipe's
UDC have contradictory requirements. Mian's UDC driver wants a
bulk-OUT transfer length to be shorter than the maxpacket size
if a short packet is expected, whereas Felipe's UDC hardware
always needs bulk-OUT transfer lengths to be evenly divisible by
the maxpacket size.
Mian has agreed to go back over the driver to resolve this
conflict. This means we probably will not want this patch after
all. (In fact, we may ultimately decide to change the gadget
framework to require that bulk-OUT transfer lengths _always_ be
divisible by the maxpacket size -- only the g_file_storage and
g_mass_storage gadgets would need to be changed.)
Cc: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This reverts commit 5808544690.
To quote Richard:
I don't think this should be mainlined. It was a
misunderstanding on my part. If you see all the other hdc
drivers in the same location, they all do the same thing (i.e.
clear the interrupt status first, then do the work) that
"glitch" I think I saw was actually two back-to-back
interrupts.
Sebastian (the original author of isp1760) explained it to me a
few days after my submission.
sorry for the confusion
Cc: Richard Retanubun <RichardRetanubun@ruggedcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit replaces the usage of strict_strtoul() (which
became deprecated after commit 33ee3b2e) with kstrtouint().
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The Atheros AR71XX/AR7240 SoCs have a built-in OHCI controller.
This patch adds the necessary glue code to make the generic OHCI
driver usable for them.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
A Synopsys USB core used in various SoCs has a bug which might cause
that the host controller not issuing ping.
When software uses the Doorbell mechanism to remove queue heads, the
host controller still has references to the removed queue head even
after indicating an Interrupt on Async Advance. This happens if the last
executed queue head's Next Link queue head is removed.
Consequences of the defect:
The Host controller fetches the removed queue head, using memory that
would otherwise be deallocated.This results in incorrect transactions on
both the USB and system memory. This may result in undefined behavior.
Workarounds:
1) If no queue head is active (no Status field's Active bit is set)
after removing the queue heads, the software can write one of the valid
queue head addresses to the ASYNCLISTADDR register and deallocate the
removed queue head's memory after 2 microframes.
If one or more of the queue heads is active (the Active bit is set in
the Status field) after removing the queue heads, the software can delay
memory deallocation after time X, where X is the time required for the
Host Controller to go through all the queue heads once. X varies with
the number of queue heads and the time required to process periodic
transactions: if more periodic transactions must be performed, the Host
Controller has less time to process asynchronous transaction processing.
2) Do not use the Doorbell mechanism to remove the queue heads. Disable
the Asynchronous Schedule Enable bit instead.
The bug has been discussed on the linux-usb-devel mailing-list
four years ago, the original thread can be found here:
http://www.mail-archive.com/linux-usb-devel@lists.sourceforge.net/msg45345.html
This patch implements the first workaround as suggested by David Brownell.
The built-in USB host controller of the Atheros AR7130/AR7141/AR7161 SoCs
requires this to work properly.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The Atheros AR71XX/AR91XX SoCs have a built-in EHCI controller.
This patch adds the necessary glue code to make the generic EHCI
driver usable for them.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch disable the optional PM feature inside the Hudson3 platform under
the following conditions:
1. If an isochronous device is connected to xHCI port and is active;
2. Optional PM feature that powers down the internal Bus PLL when the link is
in low power state is enabled.
The PM feature needs to be disabled to eliminate PLL startup delays when the
link comes out of low power state. The performance of DMA data transfer could
be impacted if system delay were encountered and in addition to the PLL start
up delays. Disabling the PM would leave room for unpredictable system delays
in order to guarantee uninterrupted data transfer to isochronous audio or
video stream devices that require time sensitive information. If data in an
audio/video stream was interrupted then erratic audio or video performance
may be encountered.
AMD PLL quirk is already implemented in OHCI/EHCI driver. After moving the
quirk code to pci-quirks.c and export them, xHCI driver can call it directly
without having the quirk implementation in itself.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
On a resume, when the power is lost during hibernate, the USB core will
call hub_reset_resume for the xHCI USB 2.0 roothub, but not for the USB
3.0 roothub:
[ 164.748310] usb usb1: root hub lost power or was reset
[ 164.748353] usb usb2: root hub lost power or was reset
[ 164.748487] usb usb3: root hub lost power or was reset
[ 164.748488] xhci_hcd 0000:01:00.0: Stop HCD
...
[ 164.870039] hub 4-0:1.0: hub_resume
...
[ 164.870054] hub 3-0:1.0: hub_reset_resume
This causes issues later, because the USB core assumes the USB 3.0 hub
attached to the USB 3.0 roothub is still active. It attempts to queue a
control URB for the external hub, which fails because all the device
slot contexts were released when the USB 3.0 roothub lost power:
[ 164.980044] hub 4-1:1.0: hub_resume
[ 164.980047] xhci_hcd 0000:01:00.0: Get port status returned 0x10101
[ 164.980049] xHCI xhci_urb_enqueue called with unaddressed device
[ 164.980053] hub 3-0:1.0: port 1: status 0101 change 0001
[ 164.980056] hub 4-1:1.0: hub_port_status failed (err = -22)
[ 164.980060] xhci_hcd 0000:01:00.0: `MEM_WRITE_DWORD(3'b000, 32'hffffc90008948440, 32'h202e1, 4'hf);
[ 164.980062] xHCI xhci_urb_enqueue called with unaddressed device
[ 164.980066] xhci_hcd 0000:01:00.0: clear port connect change, actual port 0 status = 0x2e1
[ 164.980069] hub 4-1:1.0: hub_port_status failed (err = -22)
[ 164.980072] xhci_hcd 0000:01:00.0: get port status, actual port 1 status = 0x2a0
[ 164.980074] xHCI xhci_urb_enqueue called with unaddressed device
[ 164.980077] xhci_hcd 0000:01:00.0: Get port status returned 0x100
[ 164.980079] hub 4-1:1.0: hub_port_status failed (err = -22)
[ 164.980082] xHCI xhci_urb_enqueue called with unaddressed device
[ 164.980085] hub 4-1:1.0: hub_port_status failed (err = -22)
[ 164.980088] hub 4-1:1.0: port 4: status 0000 change 0000
[ 164.980091] xHCI xhci_urb_enqueue called with unaddressed device
[ 164.980094] hub 4-1:1.0: activate --> -22
[ 164.980113] xHCI xhci_urb_enqueue called with unaddressed device
[ 164.980117] hub 4-1:1.0: hub_port_status failed (err = -22)
[ 164.980119] xHCI xhci_urb_enqueue called with unaddressed device
[ 164.980123] hub 4-1:1.0: can't resume port 4, status -22
[ 164.980126] hub 4-1:1.0: port 4 status ffff.ffff after resume, -22
[ 164.980129] usb 4-1.4: can't resume, status -22
[ 164.980131] hub 4-1:1.0: logical disconnect on port 4
This causes issues when a USB 3.0 hard drive is attached to the external
USB 3.0 hub when the system is hibernated:
[ 6249.849653] sd 8:0:0:0: [sdb] Unhandled error code
[ 6249.849659] sd 8:0:0:0: [sdb] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 6249.849663] sd 8:0:0:0: [sdb] CDB: Read(10): 28 00 00 00 2a 08 00 00 02 00
[ 6249.849671] end_request: I/O error, dev sdb, sector 10760
Make sure to inform the USB core that *both* xHCI roothubs lost power.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This patch clear PORT_POWER when suspend a USB3.0 device behind a USB3.0
external hub, so the system can suspend and resume.
Note USB3.0 device may not work after system resume and this is a temporary
workaround. The correct fix will be in future patches.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
If I unplug a device while the UAS driver is loaded, I get an oops
in usb_free_streams(). This is because usb_unbind_interface() calls
usb_disable_interface() which calls usb_disable_endpoint() which sets
ep_out and ep_in to NULL. Then the UAS driver calls usb_pipe_endpoint()
which returns a NULL pointer and passes an array of NULL pointers to
usb_free_streams().
I think the correct fix for this is to check for the NULL pointer
in usb_free_streams() rather than making the driver check for this
situation. My original patch for this checked for dev->state ==
USB_STATE_NOTATTACHED, but the call to usb_disable_interface() is
conditional, so not all drivers would want this check.
Note from Sarah Sharp: This patch does avoid a potential dereference,
but the real fix (which will be implemented later) is to set the
.soft_unbind flag in the usb_driver structure for the UAS driver, and
all drivers that allocate streams. The driver should free any streams
when it is unbound from the interface. This avoids leaking stream rings
in the xHCI driver when usb_disable_interface() is called.
This should be queued for stable trees back to 2.6.35.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
Currently, when resetting a device, xHCI driver disables all but one
endpoints and frees their rings, but leaves alone any streams that
might have been allocated. Later, when users try to free allocated
streams, we oops in xhci_setup_no_streams_ep_input_ctx() because
ep->ring is NULL.
Let's free not only rings but also stream data as well, so that
calling free_streams() on a device that was reset will be safe.
This should be queued for stable trees back to 2.6.35.
Reviewed-by: Micah Elizabeth Scott <micah@vmware.com>
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
This patch adds host USB high speed driver for samsung S5P series. This
is initial driver and we need additional implementation to support some
functions like power management.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This reverts commit 90593899de.
SAM-BA devices identify themselves CDC-ACM devices and should be using
the cdc-acm driver.
Since commit 5b239f0aeb (USB: cdc-acm: Add pseudo
modem without AT command capabilities) cdc-acm also binds to them.
Note that the Atmel SAM-BA tools expect to use a USB-serial driver and thus
require a symlink from /dev/ttyACMn to some /dev/ttyUSBm (with m < 30) to be
able to select the device. This is simply a UI-issue that should be
fixed by Atmel.
Tested with the SAM-BA 2.10 tools and an Atmel at91sam9260-ek.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: Sven Köhler <sven.koehler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The twl4030-usb driver exports the status of VBUS as sysfs attribute.
In case an accessory charger adapter (ACA) is connected to the OTG
transceiver the attribute is always 'off', even when the charger
provides VBUS. Added a variable to keep track of the status of VBUS
and report it correctly
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@tomtom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mark ehci_adjust_port_wakeup_flags as __maybe_unused to avoid the following
warning when building the ehci-mxc driver:
CC drivers/usb/host/ehci-hcd.o
drivers/usb/host/ehci-hub.c:130: warning: 'ehci_adjust_port_wakeup_flags' defined but not used
Current ehci-mxc driver implementation does not support suspend/resume.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix warning caused by stray semi-colon at end of macro:
drivers/usb/otg/twl6030-usb.c:183: warning: ISO C90 forbids mixed declarations and code
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Hema HK <hemahk@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
If we don't need Write access then attempt to open backing file in Read Only
mode instead of bailing out too soon.
Signed-off-by: Roger Quadros <roger.quadros@nokia.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The ep0 request tag was not recorded thus resulting in phase
problems while sending status/response in handle_execption() handler.
This was resulting in MSC compliance test failures with USBCV tool.
With this patch, the Bulk-Only Mass storage RESET request is
handled correctly and the MSC compliance tests pass.
Signed-off-by: Roger Quadros <roger.quadros@nokia.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The kernel already prints its build timestamp during boot, no need to
repeat it in random drivers and produce different object files each
time.
Cc: Tony Olech <tony.olech@elandigitalsystems.com>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The kernel already prints its build timestamp during boot, no need to
repeat it in random drivers and produce different object files each
time.
Cc: Tony Olech <tony.olech@elandigitalsystems.com>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1457) abandons the curious strategy of declaring a
controller dead following hibernation merely in order to reset and
then revive it. The core no longer allow dead controllers to spring
back to life when the system resumes, so there's no reason to declare
a working controller temporarily dead. Instead we do an explicit
reset.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1456) removes all uses of hcd->state from the uhci-hcd
driver, as part of the overall strategy to eliminate hcd->state
completely. Now when a controller dies we call usb_hc_died()
directly, instead of relying on the core interrupt handler to see that
hcd->state has changed to HC_STATE_HALT and make the call for us.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Instead, make we enter usb/ directory on all
needed cases and enter the subdirectories from
drivers/usb/Makefile.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some bluetooth dongles want ISO mode, and the limited support that the
sl811 offers today is sufficient. So add a Kconfig option for people
to optionally get access to the partial functionality.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1455) removes the extra padding sent by g_file_storage
and g_mass_storage when the gadget wants to send less data than
requested by the host and isn't allowed to halt the bulk-IN endpoint.
Although the Bulk-Only Transport specification requires the padding to
be present, it isn't truly needed since the transfer will be terminated
by a short packet anyway. Furthermore, many existing devices don't
bother to send any padding.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-By: Michal Nazarewicz <mina86@mina86.com>
CC: Roger Quadros <roger.quadros@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The `name' variable is unused in usb_deregister_dev() since commit d6e5bcf
(devfs: Remove the mode field from usb_class_driver as it's no longer needed).
Signed-off-by: Libor Pechacek <lpechacek@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mass-storage and file-storage gadgets align the length to maximum-packet-size
when preparing the request to receive CBW. This is unnecessary and prevents the
controller driver from knowing that a short-packet is expected.
It is incorrect to set short_not_ok when preparing the request to receive CBW.
CBW will be a short-packet so short_not_ok must not be set.
This makes bh->bulk_out_intended_length unnecessary so it is also removed.
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
When we get a port status change event, we need to figure out what type of
port it came from: a USB 3.0 port, or a USB 2.0/1.1 port. We can't know
which usb_hcd to use until that point, so hcd will be NULL for part of the
function. Unfortunately, if any of the sanity checks fail, we'll jump to
the cleanup label before hcd is set to a valid pointer, and then we'll
attempt to tell the USB core to kick the hcd, which is NULL.
Skip kicking the roothub if the sanity checks fail.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
When parsing exponent-expressed intervals we subtract 1 from the
value and then expect it to match with original + 1, which is
highly unlikely, and we end with frequent spew:
usb 3-4: ep 0x83 - rounding interval to 512 microframes
Also, parsing interval for fullspeed isochronous endpoints was
incorrect - according to USB spec they use exponent-based
intervals (but xHCI spec claims frame-based intervals). I trust
USB spec more, especially since USB core agrees with it.
This should be queued for stable kernels back to 2.6.31.
Reviewed-by: Micah Elizabeth Scott <micah@vmware.com>
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
The logic of the handling Missed Service Error Events was pretty
confusing as we were checking the same condition several times.
In addition, it caused compiler warning since the compiler could
not figure out that event_trb is actually unused in case we are
skipping current TD.
Fix that by rearranging "skip" condition checks, and factor out
skip_isoc_td() so that it is called explicitly.
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Remove 'inline' markings from file-local functions and let compiler
do its job and inline what makes sense for given architecture.
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
There were some places that compared port_speed == -1 where port_speed
is a u8. This doesn't work unless we cast the -1 to u8. Some places
did it correctly.
Instead of using -1 directly, I've created a DUPLICATE_ENTRY define
which does the cast and is more descriptive as well.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Macro arguments used in expressions need to be enclosed in parenthesis
to avoid unpleasant surprises.
This should be queued for kernels back to 2.6.31
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
Kill rx tasklet, which is no longer needed, and re-write read processing.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Allocate read urbs and read buffers in the same loop during probe.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
No need to kill ctrl urb on errors as this is done later during close.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The drain-delay code is no longer used, so remove it.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Remove driver version and changelog which can be retrieved from git
history.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Replace dev_dbg with verbose dev_vdbg in read/write paths where
appropriate.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Replace all remaining instances of dbg with dev_dbg.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Clean up some dev_err and dev_dbg messages and make sure that the
appropriate interface device is used for reporting consistently
throughout.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add missing newline to two dev_dbg and dev_err messages.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Isochronous and interrupt SuperSpeed endpoints use the same mechanisms
for decoding bInterval values as HighSpeed ones so adjust the code
accordingly.
Also bandwidth reservation for SuperSpeed matches highspeed, not
low/full speed.
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Renesas SuperH has USBHS IP which can switch Host / Function.
This driver is designed so that Host / Function may dynamically change.
This patch add usb/renesas_usbhs and common code for SuperH USBHS.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch moves the HcInterrupt register write to clear the
pending interrupt to after the isr work is done, doing this removes
glitches in the irq line.
Signed-off-by: Richard Retanubun <richardretanubun@ruggedcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The driver did not take the zero flag in the USB request. If the
request length is the same as the endpoint's maxpacket, an additional
ZLP with no data has to be transmitted.
The method used here is inspired to what is done in fsl_udc_core.c
(and pxa27x_udc.c and at91_udc.c) where this is supported.
There already was a discussion about this topic with people from
Keymile, and I propose here a better implementation:
http://thread.gmane.org/gmane.linux.usb.general/38951
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There are two -ENODEV error paths in qcprobe where the allocated private
data is not freed, this patch adds the two missing kfrees to avoid
leaking memory on the error path
Signed-off-by: Steven Hardy <shardy@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Rework the qcprobe logic such that serial->private is not set when
qcprobe exits with -ENODEV, otherwise serial->private will point to freed
memory on -ENODEV
Signed-off-by: Steven Hardy <shardy@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
qcprobe function allocates serial->private but this is never freed, this
patch adds a new function qc_release() which frees serial->private, after
calling usb_wwan_release
Signed-off-by: Steven Hardy <shardy@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
usb serial: ftdi_sio: add two missing USB ID's for Hameg interfaces HO720
and HO730
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Bind only modem AT command endpoint to option.
Signed-off-by: Marius B. Kotsbak <marius@kotsbak.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There was an unlock missing on the error path.
Also I did a small cleanup by changing ep->dev->lock for just dev->lock.
They're the same lock, but dev->lock is shorter and that's how it is
used for the spin_unlock_irqrestore() call.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Booting latest kernel on my test machine produces a lockdep
warning from the usb_amd_find_chipset_info() function:
WARNING: at /data/lemmy/linux.trees.git/kernel/lockdep.c:2465 lockdep_trace_alloc+0x95/0xc2()
Hardware name: Snook
Modules linked in:
Pid: 959, comm: work_for_cpu Not tainted 2.6.39-rc2+ #22
Call Trace:
[<ffffffff8103c0d4>] warn_slowpath_common+0x80/0x98
[<ffffffff812387e6>] ? T.492+0x24/0x26
[<ffffffff8103c101>] warn_slowpath_null+0x15/0x17
[<ffffffff81068667>] lockdep_trace_alloc+0x95/0xc2
[<ffffffff810ed9ac>] slab_pre_alloc_hook+0x18/0x3b
[<ffffffff810ef227>] kmem_cache_alloc_trace+0x25/0xba
[<ffffffff812387e6>] T.492+0x24/0x26
[<ffffffff81238816>] pci_get_subsys+0x2e/0x73
[<ffffffff8123886c>] pci_get_device+0x11/0x13
[<ffffffff814082a9>] usb_amd_find_chipset_info+0x3f/0x18a
...
It turns out that this function calls pci_get_device under a spin_lock
with irqs disabled, but the pci_get_device function is only allowed in
preemptible context.
This patch fixes the warning by making all data-structure
modifications on temporal storage and commiting this back
into the visible structure at the end. While at it, this
patch also moves the pci_dev_put calls out of the spinlocks
because this function might sleep too.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In file included from drivers/usb/host/ohci-hcd.c:1028:0:
drivers/usb/host/ohci-au1xxx.c:36:7: warning: "__BIG_ENDIAN" is not defined
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add PID 0x0103 for serial port of the OCT DK201 docking station.
Reported-by: Jan Hoogenraad <jan@hoogenraad.net>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix build failure introduced by commit
7acc6197b7 (usb: musb: Idle path retention
and offmode support for OMAP3) when building without gadget
support.
CC drivers/usb/musb/omap2430.o
drivers/usb/musb/omap2430.c: In function ‘musb_otg_notifications’:
drivers/usb/musb/omap2430.c:262: error: ‘struct musb’ has no member named ‘gadget_driver’
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1458) fixes a problem affecting ultra-reliable systems:
When hardware failover of an EHCI controller occurs, the data
structures do not get released correctly. This is because the routine
responsible for removing unused QHs from the async schedule assumes
the controller is running properly (the frame counter is used in
determining how long the QH has been idle) -- but when a failover
causes the controller to be electronically disconnected from the PCI
bus, obviously it stops running.
The solution is simple: Allow scan_async() to remove a QH from the
async schedule if it has been idle for long enough _or_ if the
controller is stopped.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-Tested-by: Dan Duval <dan.duval@stratus.com>
CC: <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
During processing of bunch of eem frames if "echo" command is found
skb is cloned and the cloned version should be used to send reply.
Unfortunately, the data of the original skb were actually used and
the cloned skb is never freed.
Using the cloned skb and freeing the skb in the completion callback
for usb request.
Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@nokia.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I added new ProdutIds for two devices from CTI GmbH Leipzig.
Signed-off-by: Christian Simon <simon@swine.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Because the disconnect function in the composite driver will call spin_lock,
this driver has to call spin_unlock before calling driver->disconnet().
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Disable USB_ARCH_HAS_EHCI in arch Kconfig and enable it in usb Kconfig
Warning log:
warning: (MICROBLAZE) selects USB_ARCH_HAS_EHCI which has unmet
direct dependencies (USB_SUPPORT)
Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
ep_read() acquires data->lock mutex in get_ready_ep() and releases it on
all paths except for one: when usb_endpoint_xfer_isoc() failed. The
patch adds mutex_unlock(&data->lock) at that path.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix printk format build warning and grammar typo on same line.
drivers/usb/host/isp1760-hcd.c:300: warning: format '%lu' expects type 'long unsigned int', but argument 4 has type 'size_t'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'for-greg' of git://gitorious.org/usb/usb:
USB: musb: blackfin: work around anomaly 05000450
usb: musb: Fix the crash issue during reboot
usb: musb: gadget: check the correct list_head
usb: musb: temporarily make it bool
USB: musb: dereferencing an iomem pointer
USB: musb: silence printk format warning
USB: musb: using 0 instead of NULL
USB: musb: add missing unlock in cppi_interrupt()
usb: musb: ux500: copy dma mask from platform device to musb device
usb: musb: clear AUTOSET while clearing DMAENAB
DMA mode 1 data corruption anomaly on Blackfin systems. This issue is
specific to the Blackfin silicon as the bug appears to be related to the
connection of the musb ip to the bus/dma fabric.
Data corruption when using USB DMA mode 1. (Issue manager 17-01-0105)
DMA mode 1 allows large size transfers to generate a single interrupt
at the end of the entire transfer. The transfer is split up in packets
of length specified in the Maximum Packet Size field for that endpoint.
If the transfer size is not an integer multiple of the Maximum Packet
Size, a short packet will be present at the end of the transfer.
Under certain conditions this packet may be corrupted in the USB FIFO.
Workaround:
Use DMA mode 1 to transfer (n* Maximum Packet Size) and schedule DMA
mode 0 to transfer the short packet.
As an example if your transfer size is 33168 bytes and Maximum Packet
Size equals 512, schedule [33168 - (33168 mod 512)] in DMA mode 1 and
the remainder (33168 mod 512) in DMA mode 0.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
We are now using our own list_head, so we should
be checking against that, not the gadget driver's
list_head.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Due to the recent changes to musb's glue layers,
we can't compile musb-hdrc as a module - compilation
will break due to undefined symbol musb_debug. In
order to fix that, we need a big re-work of the
debug support on the MUSB driver.
Because that would mean a lot of new code coming
into the -rc series, it's best to defer that to
next merge window and for now just disable module
support for MUSB.
Once we get the refactor of the debugging support
done, we can simply revert this patch and things
will go back to normal again.
Cc: stable@kernel.org # v2.6.38
Signed-off-by: Felipe Balbi <balbi@ti.com>
"tx_ram" points to io memory. We can't dereference it directly. Sparse
complains about this: "drivers/usb/musb/cppi_dma.c:1205:25: warning:
dereference of noderef expression"
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Gcc gives the following warnings:
drivers/usb/musb/cppi_dma.c: In function ‘cppi_next_tx_segment’:
drivers/usb/musb/cppi_dma.c:600: warning: format ‘%x’ expects type ‘unsigned int’, but argument 8 has type ‘dma_addr_t’
drivers/usb/musb/cppi_dma.c: In function ‘cppi_next_rx_segment’:
drivers/usb/musb/cppi_dma.c:822: warning: format ‘%x’ expects type ‘unsigned int’, but argument 9 has type ‘dma_addr_t’
drivers/usb/musb/cppi_dma.c: In function ‘cppi_rx_scan’:
drivers/usb/musb/cppi_dma.c:1042: warning: format ‘%08x’ expects type ‘unsigned int’, but argument 4 has type ‘dma_addr_t’
drivers/usb/musb/cppi_dma.c:1114: warning: format ‘%08x’ expects type ‘unsigned int’, but argument 7 has type ‘dma_addr_t’
dma_addr_t is sometimes 32 bit and sometimes 64. We normally cast them
to unsigned long long for printk().
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
On the completion of tx dma, dma is disabled by clearing MUSB_TXCSR_DMAENAB in
TXCSR. If MUSB_TXCSR_AUTOSET was set in txstate() it will remain set although
it is not needed in PIO mode. Clear it as soon as it is not needed.
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Fix build warnings caused by removal of *filp arg in struct
usb_serial_driver.
These changes were missed somehow in commits 00a0d0d65b ("tty: remove
filp from the USB tty ioctls") and 60b33c133c ("tiocmget: kill off
the passing of the struct file")
drivers/usb/serial/mct_u232.c:159: warning: initialization from incompatible pointer type
drivers/usb/serial/opticon.c:627: warning: initialization from incompatible pointer type
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: cdc-acm: fix potential null-pointer dereference on disconnect
USB: cdc-acm: fix potential null-pointer dereference
USB: cdc-acm: fix memory corruption / panic
USB: Fix 'bad dma' problem on WDM device disconnect
usb: wwan: fix compilation without CONFIG_PM_RUNTIME
USB: uss720 fixup refcount position
usb: musb: blackfin: fix typo in new bfin_musb_vbus_status func
usb: musb: blackfin: fix typo in new dev_pm_ops struct
usb: musb: blackfin: fix typo in platform driver name
usb: musb: Fix for merge issue
ehci-hcd: Bug fix: don't set a QH's Halt bit
USB: Do not pass negative length to snoop_urb()
Fix potential null-pointer exception on disconnect introduced by commit
11ea859d64 (USB: additional power savings
for cdc-acm devices that support remote wakeup).
Only access acm->dev after making sure it is non-null in control urb
completion handler.
Cc: stable <stable@kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Must check return value of tty_port_tty_get.
Cc: stable <stable@kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In the WDM class driver a disconnect event leads to calls to
usb_free_coherent to put back two USB DMA buffers allocated earlier.
The call to usb_free_coherent uses a different size parameter
(desc->wMaxCommand) than the corresponding call to usb_alloc_coherent
(desc->bMaxPacketSize0).
When a disconnect event occurs, this leads to 'bad dma' complaints
from usb core because the USB DMA buffer is being pushed back to the
'buffer-2048' pool from which it has not been allocated.
This patch against the most recent linux-2.6 kernel ensures that the
parameters used by usb_alloc_coherent & usb_free_coherent calls in
cdc-wdm.c match.
Signed-off-by: Robert Lukassen <robert.lukassen@tomtom.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The pm usage counter must be accessed with the proper wrappers
to allow compilation under all configurations.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Reported-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
My testprog do a lot of bitbang - after hours i got following warning and my machine lockups:
WARNING: at /build/buildd/linux-2.6.38/lib/kref.c:34
After debugging uss720 driver i discovered that the completion callback was called before
usb_submit_urb returns. The callback frees the request structure that is krefed on return by
usb_submit_urb.
Signed-off-by: Peter Holik <peter@holik.at>
Acked-by: Thomas Sailer <t.sailer@alumni.ethz.ch>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The common code has a "get" in the middle, but each implementation
does not have it.
Cc: stable@kernel.org
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Cc: stable@kernel.org
Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The modularization of the Blackfin driver set the name to "musb-blackfin"
in all the boards, but "musb-bfin" in the driver itself. Since the driver
file name uses "blackfin", change the driver to "musb-blackfin". This is
also easier as it's only one file to change.
Cc: stable@kernel.org
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There was conflict while merging 2 patches. Enabling vbus code
is wrongly moved to error check if loop.
This is a fix to resolve the merge issue.
Signed-off-by: Hema HK <hemahk@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1453) fixes a long-standing bug in the ehci-hcd driver.
There is no need to set the Halt bit in the overlay region for an
unlinked or blocked QH. Contrary to what the comment says, setting
the Halt bit does not cause the QH to be patched later; that decision
(made in qh_refresh()) depends only on whether the QH is currently
pointing to a valid qTD. Likewise, setting the Halt bit does not
prevent completions from activating the QH while it is "stopped"; they
are prevented by the fact that qh_completions() temporarily changes
qh->qh_state to QH_STATE_COMPLETING.
On the other hand, there are circumstances in which the QH will be
reactivated _without_ being patched; this happens after an URB beyond
the head of the queue is unlinked. Setting the Halt bit will then
cause the hardware to see the QH with both the Active and Halt bits
set, an invalid combination that will prevent the queue from
advancing and may even crash some controllers.
Apparently the only reason this hasn't been reported before is that
unlinking URBs from the middle of a running queue is quite uncommon.
However Test 17, recently added to the usbtest driver, does exactly
this, and it confirms the presence of the bug.
In short, there is no reason to set the Halt bit for an unlinked or
blocked QH, and there is a very good reason not to set it. Therefore
the code that sets it is removed.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Andiry Xu <andiry.xu@amd.com>
CC: David Brownell <david-b@pacbell.net>
CC: <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
When `echo Y > /sys/module/usbcore/parameters/usbfs_snoop` and
usb_control_msg() returns error, a lot of kernel memory is dumped to dmesg
until unhandled kernel paging request occurs.
Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This silences warnings such as
drivers/video/tmiofb.c: In function 'tmiofb_hw_init':
drivers/video/tmiofb.c:270: warning: initialization discards qualifiers from pointer target type
These were added by me in commit 2a79bb1d.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
No need to explicitly set the cell's platform_data/data_size.
Modify clients to use mfd_get_cell helper function instead of
accessing platform_data directly.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
There may be multiple ways of controlling the backlight on a given
machine. Allow drivers to expose the type of interface they are
providing, making it possible for userspace to make appropriate policy
decisions.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexdeucher@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
USB defines usb_device_type pointing to usb_device_pm_ops that
provides system-wide PM callbacks only and usb_bus_type pointing to
usb_bus_pm_ops that provides runtime PM callbacks only. However,
the USB runtime PM callbacks may be defined in usb_device_pm_ops
which makes it possible to drop usb_bus_pm_ops and will allow us
to consolidate the handling of subsystems by the PM core code.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (258 commits)
omap: zoom: host should not pull up wl1271's irq line
arm: plat-omap: iommu: fix request_mem_region() error path
OMAP2+: Common CPU DIE ID reading code reads wrong registers for OMAP4430
omap4: mux: Remove duplicate mux modes
omap: iovmm: don't check 'da' to set IOVMF_DA_FIXED flag
omap: iovmm: disallow mapping NULL address when IOVMF_DA_ANON is set
omap2+: mux: Fix compile when CONFIG_OMAP_MUX is not selected
omap4: board-omap4panda: Initialise the serial pads
omap3: board-3430sdp: Initialise the serial pads
omap4: board-4430sdp: Initialise the serial pads
omap2+: mux: Add macro for configuring static with omap_hwmod_mux_init
omap2+: mux: Remove the use of IDLE flag
omap2+: Add separate list for dynamic pads to mux
perf: add OMAP support for the new power events
OMAP4: Add IVA OPP enteries.
OMAP4: Update Voltage Rail Values for MPU, IVA and CORE
OMAP4: Enable 800 MHz and 1 GHz MPU-OPP
OMAP3+: OPP: Replace voltage values with Macros
OMAP3: wdtimer: Fix CORE idle transition
Watchdog: omap_wdt: add fine grain runtime-pm
...
Fix up various conflicts in
- arch/arm/mach-omap2/board-omap3evm.c
- arch/arm/mach-omap2/clock3xxx_data.c
- arch/arm/mach-omap2/usb-musb.c
- arch/arm/plat-omap/include/plat/usb.h
- drivers/usb/musb/musb_core.h
* 'devel-stable' of master.kernel.org:/home/rmk/linux-2.6-arm: (289 commits)
davinci: DM644x EVM: register MUSB device earlier
davinci: add spi devices on tnetv107x evm
davinci: add ssp config for tnetv107x evm board
davinci: add tnetv107x ssp platform device
spi: add ti-ssp spi master driver
mfd: add driver for sequencer serial port
ARM: EXYNOS4: Implement Clock gating for System MMU
ARM: EXYNOS4: Enhancement of System MMU driver
ARM: EXYNOS4: Add support for gpio interrupts
ARM: S5P: Add function to register gpio interrupt bank data
ARM: S5P: Cleanup S5P gpio interrupt code
ARM: EXYNOS4: Add missing GPYx banks
ARM: S3C64XX: Fix section mismatch from cpufreq init
ARM: EXYNOS4: Add keypad device to the SMDKV310
ARM: EXYNOS4: Update clocks for keypad
ARM: EXYNOS4: Update keypad base address
ARM: EXYNOS4: Add keypad device helpers
ARM: EXYNOS4: Add support for SATA on ARMLEX4210
plat-nomadik: make GPIO interrupts work with cpuidle ApSleep
mach-u300: define a dummy filter function for coh901318
...
Fix up various conflicts in
- arch/arm/mach-exynos4/cpufreq.c
- arch/arm/mach-mxs/gpio.c
- drivers/net/Kconfig
- drivers/tty/serial/Kconfig
- drivers/tty/serial/Makefile
- drivers/usb/gadget/fsl_mxc_udc.c
- drivers/video/Kconfig
* 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (961 commits)
staging: hv: fix memory leaks
staging: hv: Remove NULL check before kfree
Staging: hv: Get rid of vmbus_child_dev_add()
Staging: hv: Change the signature for vmbus_child_device_register()
Staging: hv: Get rid of vmbus_cleanup() function
Staging: hv: Get rid of vmbus_dev_rm() function
Staging: hv: Change the signature for vmbus_on_isr()
Staging: hv: Eliminate vmbus_event_dpc()
Staging: hv: Get rid of the function vmbus_msg_dpc()
Staging: hv: Change the signature for vmbus_cleanup()
Staging: hv: Simplify root device management
staging: rtl8192e: Don't copy dev pointer to skb
staging: rtl8192e: Pass priv to cmdpkt functions
staging: rtl8192e: Pass priv to firmware download functions
staging: rtl8192e: Pass priv to rtl8192_interrupt
staging: rtl8192e: Pass rtl8192_priv to dm functions
staging: rtl8192e: Pass ieee80211_device to callbacks
staging: rtl8192e: Pass ieee80211_device to callbacks
staging: rtl8192e: Pass ieee80211_device to callbacks
staging: rtl8192e: Pass ieee80211_device to callbacks
...
* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (76 commits)
pch_uart: reference clock on CM-iTC
pch_phub: add new device ML7213
n_gsm: fix UIH control byte : P bit should be 0
n_gsm: add a documentation
serial: msm_serial_hs: Add MSM high speed UART driver
tty_audit: fix tty_audit_add_data live lock on audit disabled
tty: move cd1865.h to drivers/staging/tty/
Staging: tty: fix build with epca.c driver
pcmcia: synclink_cs: fix prototype for mgslpc_ioctl()
Staging: generic_serial: fix double locking bug
nozomi: don't use flush_scheduled_work()
tty/serial: Relax the device_type restriction from of_serial
MAINTAINERS: Update HVC file patterns
tty: phase out of ioctl file pointer for tty3270 as well
tty: forgot to remove ipwireless from drivers/char/pcmcia/Makefile
pch_uart: Fix DMA channel miss-setting issue.
pch_uart: fix exclusive access issue
pch_uart: fix auto flow control miss-setting issue
pch_uart: fix uart clock setting issue
pch_uart : Use dev_xxx not pr_xxx
...
Fix up trivial conflicts in drivers/misc/pch_phub.c (same patch applied
twice, then changes to the same area in one branch)
* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (172 commits)
USB: Add support for SuperSpeed isoc endpoints
xhci: Clean up cycle bit math used during stalls.
xhci: Fix cycle bit calculation during stall handling.
xhci: Update internal dequeue pointers after stalls.
USB: Disable auto-suspend for USB 3.0 hubs.
USB: Remove bogus USB_PORT_STAT_SUPER_SPEED symbol.
xhci: Return canceled URBs immediately when host is halted.
xhci: Fixes for suspend/resume of shared HCDs.
xhci: Fix re-init on power loss after resume.
xhci: Make roothub functions deal with device removal.
xhci: Limit roothub ports to 15 USB3 & 31 USB2 ports.
xhci: Return a USB 3.0 hub descriptor for USB3 roothub.
xhci: Register second xHCI roothub.
xhci: Change xhci_find_slot_id_by_port() API.
xhci: Refactor bus suspend state into a struct.
xhci: Index with a port array instead of PORTSC addresses.
USB: Set usb_hcd->state and flags for shared roothubs.
usb: Make core allocate resources per PCI-device.
usb: Store bus type in usb_hcd, not in driver flags.
usb: Change usb_hcd->bandwidth_mutex to a pointer.
...
Stop handling gpio-vbus internally. All boards that depended on this
functionality have been converted to use gpio-vbus tranceiver. All
new boards can use it right from the start. Drop unused code.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
After redefining CONFIG_PM to depend on (CONFIG_PM_SLEEP ||
CONFIG_PM_RUNTIME) the CONFIG_PM_OPS option is redundant and can be
replaced with CONFIG_PM.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
A subsequent patch will modify device_set_wakeup_capable() in such
a way that it will call functions which may sleep and therefore it
shouldn't be called under spinlocks. In preparation to that, modify
usb_set_device_state() to avoid calling device_set_wakeup_capable()
under device_state_lock.
Tested-by: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Use the Mult and bMaxBurst values from the endpoint companion
descriptor to calculate the max length of an isoc transfer.
Add USB_SS_MULT macro to access Mult field of bmAttributes, at
Sarah's suggestion.
This patch should be queued for the 2.6.36 and 2.6.37 stable trees, since
those were the first kernels to have isochronous support for SuperSpeed
devices.
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
Use XOR to invert the cycle bit, instead of a more complicated
calculation. Eliminate a check for the link TRB type in find_trb_seg().
We know that there will always be a link TRB at the end of a segment, so
xhci_segment->trbs[TRBS_PER_SEGMENT - 1] will always have a link TRB type.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
When an endpoint stalls, we need to update the xHCI host's internal
dequeue pointer to move it past the stalled transfer. This includes
updating the cycle bit (TRB ownership bit) if we have moved the dequeue
pointer past a link TRB with the toggle cycle bit set.
When we're trying to find the new dequeue segment, find_trb_seg() is
supposed to keep track of whether we've passed any link TRBs with the
toggle cycle bit set. However, this while loop's body
while (cur_seg->trbs > trb ||
&cur_seg->trbs[TRBS_PER_SEGMENT - 1] < trb) {
Will never get executed if the ring only contains one segment.
find_trb_seg() will return immediately, without updating the new cycle
bit. Since find_trb_seg() has no idea where in the segment the TD that
stalled was, make the caller, xhci_find_new_dequeue_state(), check for
this special case and update the cycle bit accordingly.
This patch should be queued to kernels all the way back to 2.6.31.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Cc: stable@kernel.org
When an endpoint stalls, the xHCI driver must move the endpoint ring's
dequeue pointer past the stalled transfer. To do that, the driver issues
a Set TR Dequeue Pointer command, which will complete some time later.
Takashi was having issues with USB 1.1 audio devices that stalled, and his
analysis of the code was that the old code would not update the xHCI
driver's ring dequeue pointer after the command completes. However, the
dequeue pointer is set in xhci_find_new_dequeue_state(), just before the
set command is issued to the hardware.
Setting the dequeue pointer before the Set TR Dequeue Pointer command
completes is a dangerous thing to do, since the xHCI hardware can fail the
command. Instead, store the new dequeue pointer in the xhci_virt_ep
structure, and update the ring's dequeue pointer when the Set TR dequeue
pointer command completes.
While we're at it, make sure we can't queue another Set TR Dequeue Command
while the first one is still being processed. This just won't work with
the internal xHCI state code. I'm still not sure if this is the right
thing to do, since we might have a case where a driver queues multiple
URBs to a control ring, one of the URBs Stalls, and then the driver tries
to cancel the second URB. There may be a race condition there where the
xHCI driver might try to issue multiple Set TR Dequeue Pointer commands,
but I would have to think very hard about how the Stop Endpoint and
cancellation code works. Keep the fix simple until when/if we run into
that case.
This patch should be queued to kernels all the way back to 2.6.31.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Cc: stable@kernel.org
USB 3.0 devices have a slightly different suspend sequence than USB
2.0/1.1 devices. There isn't support for USB 3.0 device suspend yet, so
make khubd leave autosuspend disabled for USB 3.0 hubs. Make sure that
USB 3.0 roothubs still have autosuspend enabled, since that path in the
xHCI driver works fine.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
USB_PORT_STAT_SUPER_SPEED is a made up symbol that the USB core used to
track whether USB ports had a SuperSpeed device attached. This is a
linux-internal symbol that was used when SuperSpeed and non-SuperSpeed
devices would show up under the same xHCI roothub. This particular
port status is never returned by external USB 3.0 hubs. (Instead they
have a USB_PORT_STAT_SPEED_5GBPS that uses a completely different speed
mask.)
Now that the xHCI driver registers two roothubs, USB 3.0 devices will only
show up under USB 3.0 hubs. Rip out USB_PORT_STAT_SUPER_SPEED and replace
it with calls to hub_is_superspeed().
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
When the xHCI host controller is halted, it won't respond to commands
placed on the command ring. So if an URB is cancelled after the first
roothub is deallocated, it will try to place a stop endpoint command on
the command ring, which will fail. The command watchdog timer will fire
after five seconds, and the host controller will be marked as dying, and
all URBs will be completed.
Add a flag to the xHCI's internal state variable for when the host
controller is halted. Immediately return the canceled URB if the host
controller is halted.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Make sure the HCD_FLAG_HW_ACCESSIBLE flag is mirrored by both roothubs,
since it refers to whether the shared hardware is accessible. Make sure
each bus is marked as suspended by setting usb_hcd->state to
HC_STATE_SUSPENDED when the PCI host controller is resumed.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
