- 13 Sep, 2012 1 commit
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Greg Kroah-Hartman authored
Now that we have a printk modifier for data streams, use it instead of rolling our own. Signed-off-by:Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 12 Sep, 2012 14 commits
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Richard Zhao authored
- let role driver handle irq before ID change check; this gives the role driver a chance to handle disconnect; - disable irq during switch role; no role driver to handle irq in the period. Tested-by:
Michael Grzeschik <m.grzeschik@pengutronix.de> Tested-by:
Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by:
Richard Zhao <richard.zhao@freescale.com> Signed-off-by:
Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by:
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Richard Zhao authored
This patch turns on debugging output if CONFIG_USB_CHIPIDEA_DEBUG is enabled. Signed-off-by:
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Richard Zhao authored
Using vbus valid interrupt to detect vbus. Tested-by:
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Richard Zhao authored
In order to avoid re-queueing of the role changing work, we need to clear the ID change interrupt bit right in the irq handler. Tested-by:
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Richard Zhao authored
The ID pin needs 1ms debounce time, even at probe time. We delay 2ms to be on the safe side. Tested-by:
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Richard Zhao authored
Some controllers may not need to setup pinctrl, so we don't fail the probe if pinctrl get/select failed. Tested-by:
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Richard Zhao authored
i.MX usb controllers share non-core registers, which may include SoC specific controls. We turn it into a usbmisc device and usbmisc driver set operations needed by ci13xxx_imx driver. For example, Sabrelite board has bad over-current design, we can usbmisc to disable over-current detection. Acked-by:
Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by:
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Greg Kroah-Hartman authored
These chipidea stable patches are needed for other chipidea patches to be applied properly. Signed-off-by: -
Michael Grzeschik authored
When attaching an imx28 or imx53 in USB gadget mode to a Windows host and starting a rndis connection we see this message every 4-10 seconds: g_ether gadget: high speed config #2: RNDIS Analysis shows that each time this message is printed, the rndis connection is re-establish due to a reset because of a stalled endpoint (ep 0, dir 1). The endpoint is stalled because the reqeust complete bit on that endpoint is set, but in isr_tr_complete_low() the endpoint request list (mEp->qh.queue) is empty. This patch removed this check, because the code doesn't take the following situation into account: The loop over all endpoints in isr_tr_complete_handler() will call ep_nuke() on both ep0/dir0 and ep/dir1 in the first loop. Pending reqeusts will be flushed and completed here. There seems to be a race condition, the request is nuked, but the request complete bit will be set, too. The subsequent check (in ep0/dir1's loop cycle) for endpoint request list (mEp->qh.queue) empty will fail. Both other mainline chipidea drivers (mv_udc_core.c and fsl_udc_core.c) don't have this check. Cc: stable <stable@vger.kernel.org> Signed-off-by: -
Marc Kleine-Budde authored
If udc_start() fails the qh_pool dma-pool cannot be closed because it's still in use. This patch factors out the dma_pool_free() loop into destroy_eps() and calls it in the error path of udc_start(), too. Cc: stable <stable@vger.kernel.org> Reviewed-by:
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Marc Kleine-Budde authored
This patch fixes the error path of udc_start(). Now NULL is used to unset the peripheral with otg_set_peripheral(). Cc: stable <stable@vger.kernel.org> Reviewed-by:
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Michael Grzeschik authored
Add function to physicaly enable or disable of pullup connection on the USB-D+ line. The uvc gaget will fail, if this function is not implemented. Cc: stable <stable@vger.kernel.org> Signed-off-by:
Felipe Balbi <balbi@ti.com> Signed-off-by:
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Michael Grzeschik authored
This patch changes the setup of the endpoint maxpacket size. All non control endpoints are initialized with an undefined ((unsigned short)~0) maxpacket size. The maxpacket size of Endpoint 0 will be kept at CTRL_PAYLOAD_MAX. Some gadget drivers check for the maxpacket size before they enable the endpoint, which leads to a wrong state in these drivers. Cc: stable <stable@vger.kernel.org> Signed-off-by:
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Alexander Shishkin authored
Commit ff823c79 ("usb: move children to struct usb_port") forgot to consider the hub_disconnect sequence, which releases ports before quiescing the hub, which will lead to a use-after-free, since hub_quiesce() will try to disconnect ports' children, which are already deallocated. Simple modprobe dummy_hcd && rmmod dummy_hcd will illustrate the problem. This patch moves deallocation of hub's ports after hub_quiesce() call in hub_disconnect(). Cc: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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- 11 Sep, 2012 14 commits
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Kuninori Morimoto authored
Signed-off-by:
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usbGreg Kroah-Hartman authored
usb: musb: patches for v3.7 merge window Here we have a bunch of miscellaneous cleanups and fixes to the musb driver. It fixes a bunch of mistakes errors which nobody has triggered before, so I'm not Ccing stable tree. We are finally improving OMAP's VBUS/ID Mailbox usage so that we can introduce our PHY drivers properly. Also, we're adding support for multiple instances of the MUSB IP in the same SoC, as seen on some platforms from TI which have 2 MUSB instances. Other than that, we have some small fixes like not kicking DMA for a zero byte transfer, or properly handling NAK timeout on MUSB's host side, and the enabling of DMA Mode1 for any transfers which are aligned to wMaxPacketSize. All patches have been pending on mailing list for a long time and I don't expect any big surprises with this pull request.
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usbGreg Kroah-Hartman authored
usb: dwc3: patches for v3.7 merge window Some much needed changes for our dwc3 driver. First there's a rework on the ep0 handling due to some Silicon issue we uncovered which affects all users of this IP core (there's a missing XferNotReady(DATA) event in some conditions). This issue which show up as a SETUP transfers which wouldn't complete ever and we would fail TD 7.06 of the Link Layer Test from USB-IF and Lecroy's USB3 Exerciser. We also fix a long standing bug regarding EP0 enable sequencing where we weren't setting a particular bit (Ignore Sequence Number). Since we never saw any problems caused by that, it didn't deserve being sent to stable tree. On this pull request we also fix Burst Size initialization which should be done only in SuperSpeed and we were mistakenly setting Burst Size to the maximum value on non-SuperSpeed mode. Again, since we never saw any problems caused by that, we're not sending this patch to stable. There's also a memory ordering fix regarding usage of bitmaps in dwc3 driver. You will also find some sparse warnings fix, a fix for missed isochronous packets when the endpoint is already busy, and a fix for synchronization delay on dwc3_stop_active_transfer().
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usbGreg Kroah-Hartman authored
usb: xceiv: patches for v3.7 merge window nop xceiv got its own header to avoid polluting otg.h. It has also learned to work as USB2 and USB3 phys so we can use it on USB3 controllers. Together with those two changes to nop xceiv, we're adding basic PHY support to dwc3 driver, this is to allow platforms which actually have a SW-controllable PHY talk to them through dwc3 driver. We're adding a new phy driver for the OMAP architecture. This driver is for the PHY found in OMAP4 SoCs, and a new phy driver for the marvell architecture. An extra phy driver - for Tegra SoCs - is now moving from arch/arm/mach-tegra* to drivers/usb/phy. Also here, there's the creation of <linux/usb/phy.h> which should be used from now on for PHY drivers, even those which don't support OTG.
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Greg Kroah-Hartman authored
Merge tag 'gadget-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next usb: gadget: patches for v3.7 merge window This pull request is large but the biggest part is the first part of the cleanup on the gadget framework so we have a saner setup to add configfs support for v3.8. We have also some more conversions to the new udc_start/udc_stop which makes us closer from dropping the old interfaces. USB_GADGET_DUALSPEED and USB_GADGET_SUPERSPEED are finally gone, thanks to Michal for his awesome work. Other than that, we have the usual set of miscellaneous changes and cleanups involving improvements to debug messages, removal of duplicated includes, moving dereference after NULL test, making renesas_hsbhs' irq handler Shared, unused code being dropped, prevention of sleep-inside-spinlock bugs and a race condition fix on udc-core.
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Ajay Kumar Gupta authored
As NOP device node is now added in am33xx tree so remove the call which creates the NOP platform_device. Signed-off-by:
Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by:
Santhapuri, Damodar <damodar.santhapuri@ti.com> Signed-off-by:
Ravi Babu <ravibabu@ti.com> Signed-off-by:
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Ajay Kumar Gupta authored
Added device tree support for dsps musb glue driver and updated the Documentation with device tree binding information. Signed-off-by:
Afzal Mohammed <afzal@ti.com> Signed-off-by:
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B, Ravi authored
AM335x and TI81xx platform has dual musb controller so updating the musb_dspc.c to support the same. Changes: - Moved otg_workaround timer to glue structure - Moved static local variable last_timer to glue structure - PHY on/off related cleanups Signed-off-by: -
Ajay Kumar Gupta authored
Moved global variable "musb_debugfs_root" and static variable "old_state" to 'struct musb' to help support multi instance of musb controller as present on AM335x platform. Also removed the global variable "orig_dma_mask" and filled the dev->dma_mask with parent device's dma_mask. Signed-off-by:
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B, Ravi authored
Added musb_ida in musb_core.c to manage the multi core ids. Signed-off-by:
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Kishon Vijay Abraham I authored
Added device tree support for omap musb driver and updated the Documentation with device tree binding information. Signed-off-by:
Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by:
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Kishon Vijay Abraham I authored
The glue layer should directly write to mailbox register (present in control module) instead of calling phy layer to write to mailbox register. Writing to mailbox register notifies the core of events like device connect/disconnect. Currently writing to control module register is taken care in this driver which will be removed once the control module driver is in place. Signed-off-by:
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Kishon Vijay Abraham I authored
The mailbox register for usb otg in omap is present in control module. On detection of any events VBUS or ID, this register should be written to send the notification to musb core. Till we have a separate control module driver to write to control module, omap2430 will handle the register writes to control module by itself. So a new address space to represent this control module register is added to usb_otg_hs. Acked-by:
Benoit Cousson <b-cousson@ti.com> Signed-off-by:
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Chuansheng Liu authored
Because the IRQF_DISABLED as the flag is now a NOOP and has been deprecated and in hardirq context the interrupt is disabled. so in usb/host code: Removing the usage of flag IRQF_DISABLED; Removing the calling local_irq save/restore actions in irq handler usb_hcd_irq(); Signed-off-by:
liu chuansheng <chuansheng.liu@intel.com> Acked-by:
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- 10 Sep, 2012 11 commits
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Lan Tianyu authored
Signed-off-by:
Lan Tianyu <tianyu.lan@intel.com> Signed-off-by:
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Lan Tianyu authored
This patch adds two sysfs files for each usb hub port to allow userspace to control the port power policy. For an upcoming Intel xHCI roothub, this will translate into ACPI calls to completely power off or power on the port. As a reminder, when these ports are completely powered off, the USB host and device will see a physical disconnect. All future USB device connections will be lost, and the device will not be able to signal a remote wakeup. The control sysfs file can be written to with two options: "on" - port power must be on. "off" - port must be off. The state sysfs file reports usb port's power state: "on" - powered on "off" - powered off "error" - can't get power state For now, let userspace dictate the port power off policy. Future patches may add an in-kernel policy. Acked-by:
Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by:
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Lan Tianyu authored
Alan Stern pointed out that a USB port could potentially get powered off when the attached USB device is in the middle of enumerating, due to race conditions: http://marc.info/?l=linux-usb&m=134130616707548&w=2 If that happens, we need to ensure the enumeration fails. If a call to usb_get_descriptor() fails for a reason other than a Stall, return an error. That should handle the case where the port is powered off. Acked-by:
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Lan Tianyu authored
Upcoming Intel systems will have an ACPI method to control whether a USB port can be completely powered off. The implication of powering off a USB port is that the device and host sees a physical disconnect, and subsequent port connections and remote wakeups will be lost. Add a new function, usb_acpi_power_manageable(), that can be used to find whether the usb port has ACPI power resources that can be used to power on and off the port on these machines. Also add a new function called usb_acpi_set_power_state() that controls the port power via these ACPI methods. When the USB core calls into the xHCI hub driver to power off a port, check whether the port can be completely powered off via this new ACPI mechanism. If so, call into these new ACPI methods. Also use the ACPI methods when the USB core asks to power on a port. Signed-off-by:
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Lan Tianyu authored
This patch makes the xHCI roothub code handle the clear PORT_POWER feature request. Setting port power is already handled. Signed-off-by:
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Lan Tianyu authored
In the upcoming USB port power off patches, we need to know whether a USB port can ever see a disconnect event. Often USB ports are internal to a system, and users can't disconnect USB devices from that port. Sometimes those ports will remain empty, because the OEM chose not to connect an internal USB device to that port. According to ACPI Spec 9.13, PLD indicates whether USB port is user visible and _UPC indicates whether a USB device can be connected to the USB port (we'll call this "connectible"). Here's a matrix of the possible combinations: Visible Connectible Name Example ------------------------------------------------------------------------- Yes No Unknown (Invalid state.) Yes Yes Hot-plug USB ports on the outside of a laptop. A user could freely connect and disconnect USB devices. No Yes Hard-wired A USB modem hard-wired to a port on the inside of a laptop. No No Not used The port is internal to the system and will remain empty. Represent each of these four states with an enum usb_port_connect_type. The four states are USB_PORT_CONNECT_TYPE_UNKNOWN, USB_PORT_CONNECT_TYPE_HOT_PLUG, USB_PORT_CONNECT_TYPE_HARD_WIRED, and USB_PORT_NOT_USED. When we get the USB port's acpi_handle, store the state in connect_type in struct usb_port. Signed-off-by:
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Lan Tianyu authored
In the ACPI DSDT table, only usb root hub and usb ports are ACPI device nodes. Originally, we bound the usb port's ACPI node to the usb device attached to the port. However, we want to access those ACPI port methods when the port is empty, and there's no usb_device associated with that port. Now that the usb port is a real device, we can bind the port's ACPI node to struct usb_port instead. Signed-off-by:
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Lan Tianyu authored
The usb_device structure contains an array of usb_device "children". This array is only valid if the usb_device is a hub, so it makes no sense to store it there. Instead, store the usb_device child in its parent usb_port structure. Since usb_port is an internal USB core structure, add a new function to get the USB device child, usb_hub_find_child(). Add a new macro, usb_hub_get_each_child(), to iterate over all the children attached to a particular USB hub. Remove the printing the USB children array pointer from the usb-ip driver, since it's really not necessary. Acked-by:
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Lan Tianyu authored
This patch turns each USB port on a hub into a new struct device. This new device has the USB hub interface device as its parent. The port devices are stored in a new structure (usb_port), and an array of usb_ports are dynamically allocated once we know how many ports the USB hub has. Move the port_owner variable out of usb_hub and into this new structure. A new file will be created in the hub interface sysfs directory, so add documentation. Acked-by:
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Lan Tianyu authored
DeviceRemovalbe and wHubDelay for usb3.0 hub are little-endian and so define them as _le16. Signed-off-by:
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Sebastian Andrzej Siewior authored
The kernel's version number is used as decimal in the bcdDevice field of the RH descriptor. For kernel version v3.12 we would see 3.0c in lsusb. I am not sure how important it is to stick with bcd values since this is this way since we started git history and nobody complained (however back then we reported only 2.6). Signed-off-by:
Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by:
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