- 15 Dec, 2010 6 commits
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Matthew Wilcox authored
If swap is on a UAS device, we could recurse into the driver by using GFP_KERNEL. Using GFP_NOIO ensures we won't. Reported-by:
James Bottomley <James.Bottomley@suse.de> Signed-off-by:
Matthew Wilcox <willy@linux.intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Matthew Wilcox authored
While all existing UAS devices use alternate interface 1, this is not guaranteed, and it has caused confusion with people trying to bind the uas driver to non-uas devices. Signed-off-by:
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Matthew Wilcox authored
The spec calls this the status pipe. While it is used to receive sense IUs, it is also used to receive other IUs, so this can be confusing. Reported-by:
Luben Tuikov <ltuikov@yahoo.com> Signed-off-by:
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Matthew Wilcox authored
The IUs are not being fully initialised by the driver (due to the reserved space). Since we should be zeroing reserved fields, use kzalloc to do it for us. Reported-by:
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Matthew Wilcox authored
Add a comment to the Sense IU data structure that it's also used for Read Ready and Write Ready. Remove the 'service response' element since it's gone from the current draft (04). Signed-off-by:
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git://gitorious.org/usb/usbGreg Kroah-Hartman authored
* 'musb-hw' of git://gitorious.org/usb/usb: (43 commits) usb: musb: core: kill unneeded #include's DA8xx: assign name to MUSB IRQ resource arm: OMAP4430: musb: Configure musb to OTG mode usb: musb: Adding musb support for OMAP4430 usb: otg: TWL6030: Add twl6030_usb file for compilation mfd: TWL6030: OMAP4: Registering the TWL6030-usb device usb: musb: TWL6030: Selecting TWL6030_USB transceiver usb: otg: Kconfig: Add Kconfig option for TWL6030 transceiver. usb: otg: Adding twl6030-usb transceiver driver for OMAP4430 mfd: TWL6030: USBOTG VBUS event generation on usb: musb: add support for ux500 platform musb: am35x: fix compile error due to control apis arm: omap4: enable usb on 4430sdp usb: musb: drop board_set_vbus usb: musb: drop musb_platform_suspend/resume usb: musb: blackfin: usb dev_pm_ops structure usb: musb: am35x: usb dev_pm_ops structure usb: musb: omap2430: use dev_pm_ops structure usb: musb: omap2430: drop the nops usb: musb: mark musb_save/restore_context static ...
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- 11 Dec, 2010 2 commits
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Sergei Shtylyov authored
musb_core.c #include's a bunch of ARM and DaVinci specific headers, goodness knows why -- it happily compiles without them... Signed-off-by:
Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by:
Felipe Balbi <balbi@ti.com>
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Sergei Shtylyov authored
Commit fcf173e4 (usb: musb: add names for IRQs in structure resource) forgot to assign name to the DA8xx MUSB IRQ resource. Because of that MUSB driver fails to load on DA8xx machines. Signed-off-by:
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- 10 Dec, 2010 32 commits
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Yauheni Kaliuta authored
This patches makes possible to use composite framework and f_ncm NCM function driver to build a standalone NCM gadget device. Signed-off-by:
Yauheni Kaliuta <yauheni.kaliuta@nokia.com> Signed-off-by:
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Yauheni Kaliuta authored
Initial submittion of NCM link function driver. The driver's logic is based on f_ecm driver and does not use most of the NCM advantages like frame grouping and alignment. Signed-off-by:
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Yauheni Kaliuta authored
NCM is a Network Control Model, subclass of USB CDC class, specification is available at http://www.usb.org/developers/devclass_docs This patch makes possible for u_ether to use multiply of wMaxPacketSize predefined size transfers without ZLP (Zero Length Packet), required by NCM spec. Signed-off-by:
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Richard Röjfors authored
This patch fixes an issue where the driver does not handle out data in setup transactions. The per endpoint cached status register is cleared in the pch_udc_svc_control_out function. When there is out data available the function pch_udc_svc_data_out is called which tries to pick it up the status, which now is cleared to 0. When the status is 0, the function doesn't start reading the data from the FIFO. There is a second bug in all this, pch_udc_svc_data_out takes the endpoint number (0 for EP0), while pch_udc_svc_control_out passes the endpoint index (1 for EP0). Effectively pch_udc_svc_data_out picks up the wrong internal ep structure. This patch makes sure to put back the cached status and pass the endpoint number rather than index when calling pch_udc_svc_data_out. Signed-off-by:
Richard Röjfors <richard.rojfors@pelagicore.com> Signed-off-by:
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Richard Röjfors authored
Building pch_udc in linux-next fails, this patch fixes the a compile error: drivers/usb/gadget/pch_udc.c: In function ‘usb_gadget_register_driver’: drivers/usb/gadget/pch_udc.c:2645: error: ‘struct usb_gadget_driver’ has no member named ‘bind’ drivers/usb/gadget/pch_udc.c:2664: error: ‘struct usb_gadget_driver’ has no member named ‘bind’ And a couple of compiler warnings and checkpatch warnings. Signed-off-by:
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Mian Yousaf Kaukab authored
Basic driver for ab8500 usb otg transceiver TODO: -Regulators support -Host and OTG testing -Interface with PRCMU -Charging support Signed-off-by:
Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> Acked-by:
Linus Walleij <linus.walleij@stericsson.com> Signed-off-by:
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Pavankumar Kondeti authored
OTG driver takes care of putting hardware in low power mode. Hence not registered for any runtime PM callbacks. Signed-off-by:
Pavankumar Kondeti <pkondeti@codeaurora.org> Signed-off-by:
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Pavankumar Kondeti authored
The actual suspend/resume work is delegated to bus glue driver, which is responsible for putting hardware in low power mode. Signed-off-by:
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Pavankumar Kondeti authored
MSM SoC has chipidea USB controller. So use ci13xxx_udc core. This driver depends on transceiver driver for clock control, PHY initialization, VBUS detection. Register for notify_event callback to perform MSM specific quirks after controller is reset and stopped. Signed-off-by:
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Pavankumar Kondeti authored
Introduces ci13xxx_udc_driver struct for bus glue drivers to hint ci13xxx_udc core about their special requirements. The flags include avoiding hardware register access when controller is not in peripheral mode, enabling pull-up upon VBUS, disabling streaming mode and dependency on transceiver driver. Initialize gadget_ops in udc_probe so that transceiver can notify VBUS presence even when no gadget driver is bounded. A notify_event callback is embedded in the same struct. This patch implements two events called CONTROLLER_RESET_EVENT and CONTROLLER_STOPPED_EVENT to notify the bus glue driver after resetting and stopping the controller for performing SoC specific quirks. Signed-off-by:
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Pavankumar Kondeti authored
dma_alloc_coherent() which is internally called by dma_pool_alloc() flags a warning if device's coherent DMA mask. Hence initialize gadget device's coherent DMA mask to it's parent mask. Signed-off-by:
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Pavankumar Kondeti authored
dma_pool_alloc() require sleeping context when called with GFP_KERNEL argument. Hence release the spin lock before calling dma_pool_alloc(). usb_ep_alloc_request can also be called with non-atomic GFP flags. Hence get rid off spin lock while allocation request memory. Use GFP_ATOMIC flag for allocating request for ep0 in interrupt handler. Signed-off-by:
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Pavankumar Kondeti authored
Move PCI bus code from ci13xxx_udc to a new file ci13xxx_pci. SoC's which has MIPS USB core can include the ci13xxx_udc and keep bus glue code in their respective gadget controller drivers. Signed-off-by:
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Pavankumar Kondeti authored
Implement runtime and system pm ops to put hardware into low power mode (LPM). As part of LPM, USB clocks are turned off, PHY is put into suspend state and PHY comparators are turned off if VBUS/Id notifications are not required from PHY. Signed-off-by:
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Pavankumar Kondeti authored
Enable runtime PM and mark no_callbacks flag. OTG device, parent of HCD takes care of putting hardware into low power mode. Adjust port power wakeup flags during system suspend and resume. Signed-off-by:
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Pavankumar Kondeti authored
This patch adds support for EHCI compliant HSUSB Host controller found on MSM chips. The root hub has a single port and TT is built into it. This driver depends on OTG driver for PHY initialization, clock management and powering up VBUS. Signed-off-by:
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Pavankumar Kondeti authored
This driver implements PHY initialization, clock management, ULPI IO ops and simple OTG state machine to kick host/peripheral based on Id/VBUS line status. VBUS/Id lines are tied to a reference voltage on some boards. Hence provide debugfs interface to select host/peripheral mode. Signed-off-by:
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Alex He authored
When ASPM PM Feature is enabled on UMI link, devices that use ISOC stream of data transfer may be exposed to longer latency causing less than optimal per- formance of the device. The longer latencies are normal and are due to link wake time coming out of low power state which happens frequently to save power when the link is not active. The following code will make exception for certain features of ASPM to be by passed and keep the logic normal state only when the ISOC device is connected and active. This change will allow the device to run at optimal performance yet minimize the impact on overall power savings. Signed-off-by:
Alex He <alex.he@amd.com> Acked-by:
David Brownell <dbrownell@users.sourceforge.net> Cc: stable <stable@kernel.org> Signed-off-by:
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Peter Huewe authored
This patch fixes a build failure[1] by adding the missing uaccess.h needed for copy_from_user and copy_to_user References: http://kisskb.ellerman.id.au/kisskb/buildresult/3607218/Signed-off-by:
Peter Huewe <peterhuewe@gmx.de> Signed-off-by:
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Guennadi Liakhovetski authored
If the NOP USB OTG transceiver driver is built as a module, the otg.h header declares external functions, but if they are referenced from the kernel proper, as, e.g., in the OMAP3 case, where the omap3evm board is calling the usb_nop_xceiv_register() function, linkage breaks. This patch fixes this problem. Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
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Tobias Klauser authored
IS_ERR() already implies unlikely(), so it can be omitted here. Signed-off-by:
Tobias Klauser <tklauser@distanz.ch> Signed-off-by:
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Tobias Ollmann authored
Fixed coding style issues (delete trailing whitespaces, break long line) Signed-off-by:
Tobias Ollmann <tobias.ollmann@gmx.at> Signed-off-by:
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Uwe Kleine-König authored
Commit 06c3859f (usb: gadget/imx-udc: remove usage of deprecated symbol USBD_INT0) was a bit precipitant because the name used instead didn't match the usual naming scheme for irqs on arm/imx. I renamed the irq to the right name in e0830004 (ARM: imx: dynamically allocate imx_udc device) when 06c3859f didn't hit Linus' tree, so I missed to add a compat #define. This patch allows compiling imx_udc.c with and without e0830004. Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by:
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Namhyung Kim authored
Annotate whci_hcd_id_table as '__used' to fix following warning: CC drivers/usb/host/whci/hcd.o drivers/usb/host/whci/hcd.c:359: warning: ‘whci_hcd_id_table’ defined but not used Signed-off-by:
Namhyung Kim <namhyung@gmail.com> Signed-off-by:
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Hema HK authored
Enabling the musb OTG mode for SDP and PANDA boards. Signed-off-by:
Hema HK <hemahk@ti.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by:
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Hema HK authored
OMAP4430 supports UTMI and ULPI types of transceiver interface. In UTMI mode: The PHY is embedded within OMAP4430. The transceiver functionality is split between the twl6030 PMIC chip and OMAP4430. The VBUS, ID pin sensing and OTG SRP generation part is integrated in TWL6030 and UTMI PHY functionality is embedded within the OMAP4430. There is no direct interactions between the MUSB controller and TWL6030 chip to communicate the session-valid, session-end and ID-GND events. It has to be done through a software by setting/resetting bits in one of the control module register of OMAP4430 which in turn toggles the appropriate signals to MUSB controller. musb driver is register for blocking notifications from the transceiver driver to get the event notifications for connect/disconnect and ID-GND. Based on these events call the transceiver init/shutdown function to configure the transceiver to toggle the VBUS valid, session end and ID_GND signals to musb and power on/off the internal PHY. For ID_GND event notifications, toggle the ID_GND signal and then wait for musb to be configured as "A" device, and then call the transceiver function to set the VBUS. In OTG mode and musb as a host, When the Micro A connector used, VBUS is turned on and session bit set. When the device is connected, enumeration goes through. When the device disconnected from the other end of the connector(ID is still grounded), link will detect the disconnect and end the session. When the device is connected back, there are no events generated in the TWL6030-usb, and link is already down. So the device is not detected. Removed the session bit disable code which will recognize the connect of the device. Limitation: In OTG host mode, if device is connected during boot, it does not get detected. If disconnect and connect it back or connect after boot only it works. Fix for this, I will submit seperate patch later. Signed-off-by:
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Hema HK authored
Add the twl6030_usb transceiver file for compilation. Signed-off-by:
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Hema HK authored
Registering the twl6030-usb transceiver device as a child to twl6030 core. Removed the NOP transceiver init call from board file. Populated twl4030_usb_data platform data structure with the function pointers for OMAP4430 internal PHY operation to be used by twl630-usb driver. Signed-off-by:
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Hema HK authored
Selecting the twl6030-usb for OMAP4430SDP and OMAP4PANDA boards and adding OMAP4 internal phy code for compilation Signed-off-by:
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Hema HK authored
Added the TWL6030-usb transceiver option in the Kconfig Signed-off-by:
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Hema HK authored
Adding the twl6030-usb transceiver support for OMAP4 musb driver. OMAP4 supports 2 types of transceiver interface. 1. UTMI: The PHY is embedded within OMAP4. The transceiver functionality is split between the twl6030 PMIC chip and OMAP4430. The VBUS, ID pin sensing and OTG SRP generation part is integrated in TWL6030 and UTMI PHY functionality is embedded within the OMAP4430. There is no direct interactions between the MUSB controller and TWL6030 chip to communicate the session-valid, session-end and ID-GND events. It has to be done through a software by setting/resetting bits in one of the control module register of OMAP4430 which in turn toggles the appropriate signals to MUSB controller. The internal transceiver has functional clocks and powerdown bits to powerdown the PHY for power saving. Since there is no option available for having 2 transceiver drivers for one USB controller, internal PHY specific APIs are passed through plaform_data function pointers to use in the twl6030-usb transceiver driver. 2. ULPI interface is provided for off-chip transceivers. Signed-off-by:
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Hema HK authored
With TWL6030-usb, VBUS SESS_VLD and SESS_END events are not generated as expected. When these interrupts are enabled, charger VBUS detection interrupt does not get generated. So USBOTG has to be dependent on charger VBUS interrupts. So added one bit for USBOTG and changed the handler to call the USBOTG handler whenever there is a charger VBUS interrpt. VBUS SESS_VLD and SESS_END event generation issue is under debug with HW team. This fix might not be required once after fixing the issue. Signed-off-by:
Balaji TK <balajitk@ti.com> Signed-off-by:
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