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2009-12-11USB: add devpath sysfs attributeGreg Kroah-Hartman
This is not exported from the usb core, yet we rely on it to create paths to interfaces for this device in sysfs. Export it to make userspace tools have an easier time to figure things out. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: twl4030: Enable USB regulators before enabling USB chargingAguilar Pena, Leed
For TWL family of power management ICs, USB charging works only when USB regulators are in enabled state: 3v1, 1v5, 1v8 On a USB cable attach, twl4030_phy_resume(twl) function enables the regulators. Enable USB charging, only after all regulators are enabled. Its observed that enabling USB charging before regulators are enabled, causes USB charging to fail. Tested on: Zoom2: omap3430: ES3.1 + TWL5030 Needs T2-MADC and T2-BCI drivers which are still not upstreamed. Signed-off-by: Moiz Sonasath <m-sonasath@ti.com> Signed-off-by: Leed Aguilar <leed.aguilar@ti.com> Acked-by: Vikram Pandita <vikram.pandita@ti.com> Acked-by: Anand Gadiyar <gadiyar@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Acked-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: usbtmc: repeat usb_bulk_msg until whole message is transferedAndre Herms
usb_bulk_msg() transfers only bytes up to the maximum packet size. It must be repeated by the usbtmc driver until all bytes of a TMC message are transfered. Without this patch, ETIMEDOUT is reported when writing TMC messages larger than the maximum USB bulk size and the transfer remains incomplete. The user will notice that the device hangs and must be reset by either closing the application or pulling the plug. Signed-off-by: Andre Herms <andre.herms@tec-venture.de> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb_gadget: remove pointless loopSergei Shtylyov
Remove the pointless 'do () while (0)' loop from musb_g_tx() -- it makes this function symmetric to musb_g_rx()... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb_gadget_ep0: stop abusing musb_gadget_set_halt()Sergei Shtylyov
Stop playing with musb->lock and abusing musb_gadget_set_halt() in the code clearing the endpoint halt feature -- instead, manipulate the registers directly. While at it, get rid uf unneeded line breaks and over-indentation in the code setting the endpoint halt feature. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb_gadget: implement set_wedge() methodSergei Shtylyov
Implement the driver's set_wedge() method by adding the 'wedged' flag to the 'struct musb_ep'. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb_gadget_ep0: fix unhandled endpoint 0 IRQs, againSergei Shtylyov
Commit a5073b52833e4df8e16c93dc4cbb7e0c558c74a2 (musb_gadget: fix unhandled endpoint 0 IRQs) somehow missed its key change: "The gadget EP0 code routinely ignores an interrupt at end of the data phase because of musb_g_ep0_giveback() resetting the state machine to "idle, waiting for SETUP" phase prematurely." So, the majority of the cases of unhandled IRQs is still unfixed... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: MUSB: save hardware revision at initAnand Gadiyar
MUSB: save hardware revision at init This can be used later to flag workarounds for issues affecting particular revisions. Saving this at init avoids having to read the HWVERS register multiple times in code. While at it, use macros to extract the version information instead of using hardcoded values. Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Cc: Ajay Kumar Gupta <ajay.gupta@ti.com> Acked-by: Felipe Balbi <felipe.balbi@nokia.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb: fix printf warning in debug codeMike Frysinger
The debug code in the DMA ISR uses a %d for a size_t when it should be using %zu. Otherwise gcc whines with: drivers/usb/musb/musbhsdma.c: In function 'dma_controller_irq': drivers/usb/musb/musbhsdma.c:288: warning: format '%d' expects type 'int', but argument 7 has type 'size_t' Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb: Blackfin code needs NOP_USB_XCEIV tooCliff Cai
Otherwise we get the link failure: drivers/built-in.o: In function 'musb_platform_init': drivers/usb/musb/blackfin.c:300: undefined reference to 'usb_nop_xceiv_register' make: *** [.tmp_vmlinux1] Error 1 Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb: error out when anomaly 05000380 is applicableSonic Zhang
Since we can't work around anomaly 05000380, throw a build error up and instruct the user to use a different mode. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb: clear the Blackfin interrupt pending bits early in the ISRCliff Cai
If we clear the interrupt pending bits at the end, we sometimes return too fast and have the same interrupt assert itself. There is no way in a Blackfin system to force a sync of this state, so the hardware manual instructs people to clear interrupt flags early in their ISR. Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb: fix musb_platform_set_mode() definitionBryan Wu
Update function definition to match latest MUSB framework. Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb: add work around for Blackfin anomaly 05000456Sonic Zhang
Only allow USE_MODE1 when the Blackfin part is not affected by anomaly 05000456 (USB Receive Interrupt Is Not Generated in DMA Mode 1) since we can't support the mode in that case. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb: add notes for Blackfin anomaliesSonic Zhang
Add some helpful notes about how the driver works around different anomalies that exist in the on-chip host controller. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb: update Blackfin processor dependencySonic Zhang
Do not allow MUSB driver to be selected on derivatives that don't have the MUSB controller on them. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb: kill some useless comments in Blackfin driverBryan Wu
Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb: kill compile warning for Blackfin systemsBryan Wu
The Blackfin version of musb_read_target_reg_base() returns a u16 when the common code expects a (void __iomem *), so update the Blackfin function to return the right value. This fixes the compile warning: drivers/usb/musb/musb_core.c: In function 'musb_core_init': drivers/usb/musb/musb_core.c:1448: warning: assignment makes pointer from integer without a cast Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: musb: tweak musb_read_fifo() to avoid unused warningsMike Frysinger
Otherwise gcc will whine about epnum/dma_reg being unused when building for BF54x parts. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Acked-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: xhci: Handle errors that cause endpoint halts.Sarah Sharp
The xHCI 0.95 and 0.96 specification defines several transfer buffer request completion codes that indicate a USB transaction error occurred. When a stall, babble, transaction, or split transaction error completion code is set, the xHCI has halted that endpoint ring. Software must issue a Reset Endpoint command and a Set Transfer Ring Dequeue Pointer command to clean up the halted ring. The USB device driver is supposed to call into usb_reset_endpoint() when an endpoint stalls. That calls into the xHCI driver to issue the proper commands. However, drivers don't call that function for the other errors that cause the xHC to halt the endpoint ring. If a babble, transaction, or split transaction error occurs, check if the endpoint context reports a halted condition, and clean up the endpoint ring if it does. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: xhci: Return success for vendor-specific info codes.Sarah Sharp
An xHCI host controller manufacturer can choose to implement several vendor-specific informational completion codes. These are all to be treated like a successful transfer completion. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: xhci: Return -EPROTO on a split transaction error.Sarah Sharp
When the xHCI hardware says a transfer completed with a split transaction error, set the URB status to -EPROTO. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: xhci: Set transfer descriptor size field correctly.Sarah Sharp
The transfer descriptor (TD) is a series of transfer request buffers (TRBs) that describe the buffer pointer, length, and other characteristics. The xHCI controllers want to know an estimate of how long the TD is, for caching reasons. In each TRB, there is a "TD size" field that provides a rough estimate of the remaining buffers to be transmitted, including the buffer pointed to by that TRB. The TD size is 5 bits long, and contains the remaining size in bytes, right shifted by 10 bits. So a remaining TD size less than 1024 would get a zero in the TD size field, and a remaining size greater than 32767 would get 31 in the field. This patches fixes a bug in the TD_REMAINDER macro that is triggered when the URB has a scatter gather list with a size bigger than 32767 bytes. Not all host controllers pay attention to the TD size field, so the bug will not appear on all USB 3.0 hosts. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: g_multi: Multifunction Composite Gadget addedMichal Nazarewicz
The Multifunction Composite Gadget has two configurations consisting of Ethernet (RNDIS in first and CDC Ethernet in second configuration), CDC Serial and File-backed Storage functions. When connected to a Windows host, the first configuration is chosen thus gadget provides RNDIS Ethernet, serial and mass storage whereas when connected to Linux host, second configuration is chosen thus providing CDC Ethernet, serial and mass storage. Which configurations are built can be configured via KConfig options. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: g_mass_storage: thread_exits callback addedMichal Nazarewicz
thread_exits callback has been added to fsg_common structure. This callback is called when MSF's thread exits (is terminated by a signal or function is unregistered). It's then gadget's responsibility to unregister the gadget. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: composite: usb_composite_unregister() no longer __exitMichal Nazarewicz
Changed definition of usb_composite_unregister() function removing __exit declaration. This way, the function is included even if the whole code was not compiled as module. This is required if a compiled-in code would like to unregister a composite gadget. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: g_mass_storage: most data moved to fsg_commonMichal Nazarewicz
Most of the data from fsg_dev have been moved to fsg_common structure. The fsg_dev structure holds only endpoint dependent data. The fsg_common structure has a fsg pointer which points to active fsg_dev structure -- endpoints are referenced via this pointer. This fixes the problem of several threads created when a single instance of MSF is used in several USB configurations. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: g_mass_storage: code cleaned up and comments updatedMichal Nazarewicz
Fixed most of the errors and warnings in f_mass_storage.c and storage_common.c reported by checkpatch.pl as well as updated comments. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: g_mass_storage: lun_name_format and thread_name addedMichal Nazarewicz
A two fsg_config fields were added: * lun_name_format which lets one specify format of a name used when registering LUN devices. It is useful if there would be ever need for two MSFs to be used in a single composite gadget (as opposed to single MSF in two configuration); and * thread_name which lets one specify the name of a kernel thread used by MSF. This is not required since two or more threads can have the same name but nevertheless it's here for consistency. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: g_mass_storage: fsg_config added & module params handlig changedMichal Nazarewicz
Removed all references to mod_data in f_mass_storage.c and instead created fsg_config structure fsg_common_init() takes as an argument -- it stores all configuration options that were previously taken from mod_data. Moreover, The fsg_config structure allows per-LUN configuration of removable and CD-ROM emulation. Module parameters are handled by defining an object of fsg_module_parameters structure and then declaring module parameters via FSG_MODULE_PARAMETERS() macro. It adds proper declarations to the code making specified object be populated from module parameters. To use values stored there one may use either fsg_config_from_params() which will will a fsg_config structure with values taken from fsg_module_parameters structure or fsg_common_from_params() which will initialise fsg_common structure directly. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: g_mass_storage: Mass Storage Function createdMichal Nazarewicz
The f_mass_storage.c has been changed into a composite function. mass_storage.c file has been introduced which defines a g_mass_storage gadget based on composite framework. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: xhci: Add tests for TRB address translation.Sarah Sharp
It's not surprising that the transfer request buffer (TRB) physical to virtual address translation function has bugs in it, since I wrote most of it at 4am last October. Add a test suite to check the TRB math. This runs at memory initialization time, and causes the driver to fail to load if the TRB math fails. Please excuse the excessively long lines in the test vectors; they can't really be made shorter and still be readable. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11usbtest: make module param pattern writeableVikram Pandita
Allow module_param to be writeable. This allows us to change the parameter if usbtest is built-in in the kernel. Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: fix possible null deref in init_usb_class()Dan Carpenter
Add a missing goto. We dereference usb_class on the next line. Found by smatch static checker. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: r8a66597: clean up. remove unneeded null checksDan Carpenter
td and dev can not be null. Also they are dereferenced in list_for_each_entry_safe and list_for_each before the check happens so we would have an oops if it were possible for them to be null. Found using the smatch static checker. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: remove the auto_pm flagAlan Stern
This patch (as1302) removes the auto_pm flag from struct usb_device. The flag's only purpose was to distinguish between autosuspends and external suspends, but that information is now available in the pm_message_t argument passed to suspend methods. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: hcd.c: quiet NULL pointer sparse noiseH Hartley Sweeten
Quiet the following sparse noise: warning: Using plain integer as NULL pointer Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: option.c: add support for D-Link DWM-162-U5Zhang Le
Add D-Link DWM-162-U5 device id 1e0e:ce16 into option driver. The device has 4 interfaces, of which 1 is handled by storage and the other 3 by option driver. The device appears first as CD-only 05c6:2100 device and must be switched to 1e0e:ce16 mode either by using "eject CD" or usb_modeswitch. The MessageContent for usb_modeswitch.conf is: "55534243e0c26a85000000000000061b000000020000000000000000000000" Signed-off-by: Zhang Le <r0bertz@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: ark3116: Cleanup of now unneeded functionsbart.hartgers@gmail.com
Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com> Cc: Mike McCormack <mikem@ring3k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: ark3116: Callbacks for interrupt and bulk readbart.hartgers@gmail.com
Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com> Cc: Mike McCormack <mikem@ring3k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: ark3116: Add cmset and breakbart.hartgers@gmail.com
Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com> Cc: Mike McCormack <mikem@ring3k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: ark3116: Replace cmgetbart.hartgers@gmail.com
Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com> Cc: Mike McCormack <mikem@ring3k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: ark3116: Make existing functions 16450-aware and add close and release ↵bart.hartgers@gmail.com
functions. Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com> Cc: Mike McCormack <mikem@ring3k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: ark3116: Setup some basic infrastructure for new ark3116 driver.bart.hartgers@gmail.com
Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com> Cc: Mike McCormack <mikem@ring3k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: Close usb_find_interface raceRuss Dill
USB drivers that create character devices call usb_register_dev in their probe function. This associates the usb_interface device with that minor number and creates the character device and announces it to the world. However, the driver's probe function is called before the new usb_interface is added to the driver's klist_devices. This is a problem because userspace will respond to the character device creation announcement by opening the character device. The driver's open function will the call usb_find_interface to find the usb_interface associated with that minor number. usb_find_interface will walk the driver's list of devices and find the usb_interface with the matching minor number. Because the announcement happens before the usb_interface is added to the driver's klist_devices, a race condition exists. A straightforward fix is to walk the list of devices on usb_bus_type instead since the device is added to that list before the announcement occurs. bus_find_device calls get_device to bump the reference count on the found device. It is arguable that the reference count should be dropped by the caller of usb_find_interface instead of usb_find_interface, however, the current users of usb_find_interface do not expect this. Signed-off-by: Russ Dill <Russ.Dill@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: FIX bitfield istl_flip:1, make it unsigned.Roel Kluin
istl_flip is a signed bitfield of one bit so it can be -1 or 0. However in drivers/usb/host/isp1362-hcd.c:1103: finish_iso_transfers(isp1362_hcd, &isp1362_hcd->istl_queue[isp1362_hcd->istl_flip]); So if isp1362_hcd->istl_flip is set, the 2nd argument becomes &isp1362_hcd->istl_queue[-1], which is invalid. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: handle bcd incrementation in usb modalias generationNathaniel McCallum
This patch fixes a bug when incrementing/decrementing on a BCD formatted integer (i.e. 0x09++ should be 0x10 not 0x0A). It just adds a function for incrementing/decrementing BCD integers by converting to decimal, doing the increment/decrement and then converting back to BCD. Signed-off-by: Nathaniel McCallum <nathaniel@natemccallum.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: add hex/bcd detection to usb modalias generationNathaniel McCallum
The current code to generate usb modaliases from usb_device_id assumes that the device's bcdDevice descriptor will actually be in BCD format. While this should be a sane assumption, some devices don't follow spec and just use plain old hex. This causes drivers for these devices to generate invalid modalias lines which will never actually match for the hardware. The following patch adds hex support for bcdDevice in file2alias.c by detecting when a driver uses a hex formatted bcdDevice_(lo|hi) and adjusts the output to hex format accordingly. Drivers for devices which have bcdDevice conforming to BCD will have no change in modalias output. Drivers for devices which don't conform (i.e. ibmcam) should now generate valid modaliases. EXAMPLE OUTPUT (ibmcam; space added to highlight change) Old: usb:v0545p800D d030[10-9] dc*dsc*dp*ic*isc*ip* New: usb:v0545p800D d030a dc*dsc*dp*ic*isc*ip* Signed-off-by: Nathaniel McCallum <nathaniel@natemccallum.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: Exposing second ACM channel as tty for Nokia S60 phones.Adrian Taylor
Nokia S60 phones expose two ACM channels. The first is a modem and is picked up by the standard AT-command interface information in the CDC-ACM driver. The second is marked as having a vendor-specific protocol. Normally, we don't expose those as ttys. (On some other devices, they may be claimed by the rndis_host driver and used as a network interface). But on S60 this second ACM channel is the way that third-party S60 application developers are expected to communicate over USB. It acts as a serial device at the S60 end, and so it should on Linux too. The list of devices is largely derived from: http://wiki.forum.nokia.com/index.php/S60_Platform_and_device_identification_codes http://wiki.forum.nokia.com/index.php/Nokia_USB_Product_IDs and includes only the S60 3rd Edition+ devices documented there. There are many devices for which the USB device ID is not documented, including: Nokia 6290 Nokia E63 Nokia 5630 XpressMusic Nokia 5730 XpressMusic Nokia 6710 Navigator Nokia 6720 classic Nokia 6730 Classic Nokia 6760 slide Nokia 6790 slide Nokia 6790 Surge Nokia E52 Nokia E55 Nokia E71x (AT&T) Nokia E72 Nokia E75 Nokia E75 US+LTA variant Nokia N79 Nokia N86 8MP Nokia 5230 (RM-588) Nokia 5230 (RM-594) Nokia 5530 XpressMusic Nokia 5530 XpressMusic (china) Nokia 5800 XM Nokia N97 (RM-506) Nokia N97 mini Nokia X6 It would be good to add those subsequently. Signed-off-by: Adrian Taylor <aat@realvnc.com> Acked-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11USB: Check results of dma_map_singleLarry Finger
In map_urb_for_dma(), the DMA address returned by dma_map_single() is not checked to determine if it is legal. This lack of checking contributed to a problem with the libertas wireless driver (http://marc.info/?l=linux-wireless&m=125695331205062&w=2). The difficulty was not detected until the buffer was unmapped. By this time memory corruption had occurred. The situation is fixed by testing the returned DMA address, and returning -EAGAIN if the address is invalid. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 12:16:02 +0000