- 07 May, 2011 5 commits
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Ramneek Mehresh authored
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>
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Jingoo Han authored
Return PTR_ERR(clk) instead of -ENOENT if clk_get fails Signed-off-by:
Jingoo Han <jg1.han@samsung.com> Signed-off-by:
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Jingoo Han authored
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: -
Manuel Lauss authored
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:
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Anatolij Gustschin authored
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:
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- 03 May, 2011 27 commits
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Jan Andersson authored
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:
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Jan Andersson authored
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:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Pavankumar Kondeti authored
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:
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Anji jonnala authored
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:
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Pavankumar Kondeti authored
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:
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Pavankumar Kondeti authored
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:
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Pavankumar Kondeti authored
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Pavankumar Kondeti authored
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Pavankumar Kondeti authored
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Dmitry Eremin-Solenikov authored
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:
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Michael Hund authored
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:
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Rabin Vincent authored
As pointed out by Arnd Bergmann, in include/linux/usb/ehci_def.h, struct ehci_caps is defined with __attribute__((packed)) for no good reason, and this triggers undefined behaviour when using ARM's readl() on pointers to elements of this structure: http://lkml.kernel.org/r/201102021700.20683.arnd@arndb.de The same problem exists with the other two structures in ehci_def.h too, so remove the __attribute__((packed)) from all of them. Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Rabin Vincent <rabin@rab.in> Signed-off-by:
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David Daney authored
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:
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David Daney authored
Additional PHY tuning is needed to obtain compliant 'eye' diagram electrical characteristics. Signed-off-by:
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David Daney authored
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:
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Greg Kroah-Hartman authored
Merge branch 'for-usb-next' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-next * '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
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Arvid Brodin authored
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:
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Arvid Brodin authored
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:
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Arvid Brodin authored
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:
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Arvid Brodin authored
This collects urb enqueue code that was spread out all over the place into a couple of more readable functions. Signed-off-by:
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Arvid Brodin authored
This removes the "qh is 0" printout. qh == NULL if the urb has been unlinked, so this condition is normal. Signed-off-by:
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Anton Tikhomirov authored
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Anton Tikhomirov <av.tikhomirov@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by:
Kukjin Kim <kgene.kim@samsung.com> Signed-off-by:
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Anton Tikhomirov authored
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:
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Anton Tikhomirov authored
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:
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Anton Tikhomirov authored
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:
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Anton Tikhomirov authored
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:
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Anton Tikhomirov authored
This patch fixes code responsible for core reset. Signed-off-by:
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- 02 May, 2011 8 commits
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Anatolij Gustschin authored
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Li Yang authored
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:
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Anatolij Gustschin authored
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:
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Anatolij Gustschin authored
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:
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Anatolij Gustschin authored
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:
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Anatolij Gustschin authored
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Sarah Sharp authored
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>
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Sarah Sharp authored
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:
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