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path: root/drivers/usb/host/whci
AgeCommit message (Collapse)Author
2009-09-23USB: whci-hcd: make endpoint_reset method asyncDavid Vrabel
usb_hcd_endpoint_reset() may be called in atomic context and must not sleep. So make whci-hcd's endpoint_reset() asynchronous. URBs submitted while the reset is in progress will be queued (on the std list) and transfers will resume once the reset is complete. Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-04-17USB: whci-hcd: check return value of usb_hcd_link_urb_to_ep()David Vrabel
Check the return value of usb_hcd_link_urb_to_ep() and do not add the urb to the ASL/PZL if it returns an error. Omitting the check results in urbs that appear to be submitted successfully but then cannot be unliked (because usb_hcd_check_unlink_urb() returns an error). This can cause khubd (for example) to block forever in usb_kill_urb(). Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-04-17USB: whci-hcd: provide a endpoint_reset methodDavid Vrabel
Provide a endpoint_reset method to reset sequence number and current window. This QHead information can only be changed while the qset is not in a schedule. Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-16wusb: whci-hcd: always lock whc->lock with interrupts disabledDavid Vrabel
Always lock whc->lock with spin_lock_irq() or spin_lock_irqsave(). Signed-off-by: David Vrabel <david.vrabel@csr.com>
2009-01-07wusb: timeout when waiting for ASL/PZL updates in whci-hcdDavid Vrabel
Timeout if an ASL or PZL update doesn't not complete and reset the hardware. Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-11-26wusb: add debug files for ASL, PZL and DI to the whci-hcd driverDavid Vrabel
Add asl, pzl and di debugfs files to uwb/uwbN/wusbhc for WHCI host controller. These dump the current ASL, PZL and DI buffer. Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-11-25wusb: whci-hcd shouldn't do ASL/PZL updates while channel is inactiveDavid Vrabel
ASL/PZL updates while the WUSB channel is inactive (i.e., the PZL and ASL are stopped) may not complete. This causes hangs when removing the whci-hcd module if a device is still connected (removing the device does an endpoint_disable which results in an ASL update to remove the qset). If the WUSB channel is inactive the update can simply be skipped as the WHC doesn't care about the state of the ASL/PZL. Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-11-19uwb: add basic radio managerDavid Vrabel
The UWB radio manager coordinates the use of the radio between the PALs that may be using it. PALs request use of the radio with uwb_radio_start() and the radio manager will start beaconing if its not already doing so. When the last PAL has called uwb_radio_stop() beaconing will be stopped. In the future, the radio manager will have a more sophisticated channel selection algorithm, probably following the Channel Selection Policy from the WiMedia Alliance when it is finalized. For now, channel 9 (BG1, TFC1) is selected. The user may override the channel selected by the radio manager and may force the radio to stop beaconing. The WUSB Host Controller PAL makes use of this and there are two new debug PAL commands that can be used for testing. Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-31wusb: remove unused #include <version.h>Huang Weiyi
The file(s) below do not use LINUX_VERSION_CODE nor KERNEL_VERSION. drivers/usb/host/hwa-hc.c drivers/usb/host/whci/hcd.c drivers/usb/host/whci/int.c drivers/usb/host/whci/wusb.c drivers/usb/wusbcore/cbaf.c This patch removes the said #include <version.h>. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-28wusb: do a proper channel stopDavid Vrabel
When stopping the WUSB channel the host should send Channel Stop IEs giving the WUSB Channel Time of the last MMC. Both WHCI and HWA hosts provide a channel stop command for this. Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-28wusb: release mutex in the error path of whci-hcd's whc_do_gencmd()David Vrabel
Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17wusb: WHCI host controller driverDavid Vrabel
A driver for Wireless USB host controllers that comply with the Wireless Host Controller Interface (HCI) specification as published by Intel. The latest publically available version of the specification (0.95) is supported (except for isochronous transfers). Build fixes by Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: David Vrabel <david.vrabel@csr.com>