- 03 May, 2011 11 commits
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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:
Greg Kroah-Hartman <gregkh@suse.de>
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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
Signed-off-by:
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 9 commits
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Anatolij Gustschin authored
Signed-off-by:
Anatolij Gustschin <agust@denx.de> Cc: Li Yang <leoli@freescale.com> Signed-off-by:
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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
Signed-off-by:
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Anatolij Gustschin authored
Provide common otg_state_string() and use it in drivers. Signed-off-by:
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Sebastian Andrzej Siewior authored
dummy_hcd + g_zero: |./testusb -a -s 1024 -v 1024 -t 10 | usbtest 2-1:3.0: subtest 14 error, status 0 with patch: ./testusb -a -t 10 |unknown speed /proc/bus/usb/001/002 | dummy_udc dummy_udc: disabled ep-a | dummy_udc dummy_udc: disabled ep-b | dummy_udc dummy_udc: enabled ep-a (ep1in-bulk) maxpacket 1024 | dummy_udc dummy_udc: enabled ep-b (ep2out-bulk) maxpacket 1024 | zero gadget: source/sink enabled | usbtest 1-1:3.0: TEST 10: queue 32 control calls, 1000 times | dummy_hcd dummy_hcd: timer fired with no URBs pending? |/proc/bus/usb/001/002 test 10, 0.022370 secs Signed-off-by:
Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by:
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Sebastian Andrzej Siewior authored
Signed-off-by:
Felipe Balbi <balbi@ti.com> Signed-off-by:
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- 30 Apr, 2011 20 commits
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Ben Hutchings authored
Commit b02d0ed6 ('xhci: Change hcd_priv into a pointer') added calls to kzalloc() and kfree() in xhci-pci.c. On most architectures <linux/slab.h> is indirectly included, but on some it is not. Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>, Signed-off-by:
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Michal Nazarewicz authored
The usb_create_sysfs_intf_files() function always returned zero even if it failed to create sysfs fails. Since this is a desired behaviour there is no need to return return code at all. This commit changes function's return type (form int) to void. Signed-off-by:
Michal Nazarewicz <mina86@mina86.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by:
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Alan Stern authored
This patch (as1452b) adds a new test case to the usbtest driver. Test 24 exercises the unlink-from-queue pathways in the host. It queues a user-specified number of bulk-OUT URBs of user-specified size, unlinks the fourth- and second-from-last URBs in the queue, and then waits to see if all the URBs complete in the expected way (except of course that the unlinked URBs might complete normally, if they weren't unlinked soon enough). This new test has confirmed the existence of a bug in the ehci-hcd driver, to be fixed by a separate patch. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Jim Lin authored
Tegra USB1 port needs to issue Port Reset twice internally, otherwise it fails to enumerate devices attached to it Signed-off-by:
Jim Lin <jilin@nvidia.com> Signed-off-by:
Olof Johansson <olofj@chromium.org> [ squash two patches into one and minor style cleanups ] Signed-off-by:
Mike Rapoport <mike@compulab.co.il> Signed-off-by:
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Jingoo Han authored
This patch uses the resource_size help function instead of manually calculating the resource size. It can reduce the chance of introducing off-by-one errors. Signed-off-by:
Jingoo Han <jg1.han@samsung.com> Signed-off-by:
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Jingoo Han authored
The __devinit and __devexit macros were added to probe and remove functions. The macros move the probe and remove functions to the devinit and devexit sections. Signed-off-by:
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Michal Nazarewicz authored
This commit fixes an embarrassing bug in the "storage_common: use kstrto*()" patch which caused fsg_store_ro() to return zero instead of the length of the consumed buffer. Signed-off-by:
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Sebastian Andrzej Siewior authored
the_controller is allocated in dummy_hcd_probe() and is NULL if the allocation failed. The probe function of the udc driver is dereferencing this pointer and fault. Alan Stern suggested to abort the dummy_hcd driver probing so the module is not loaded. The is abort-on-error has been also added to the udc driver. Signed-off-by:
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Sebastian Andrzej Siewior authored
If USB type detections fails, we run into default and return 0. Signed-off-by:
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Kuninori Morimoto authored
Current renesas_usbhs was designed to save power when USB is not connected. And it assumed platform uses callback to notify connection/disconnection by external interrupt. But some SuperH / platform board doesn't have such feature. This patch adds autonomy mode which detect USB connection/disconnection by internal interrupt. But power will be always ON when autonomy mode is selected. Signed-off-by:
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by:
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Kuninori Morimoto authored
This delay is used to overjump debounce. And, this patch also move usbhsc_drvcllbck_notify_hotplug to global, because it will be called from other files. Signed-off-by:
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Kuninori Morimoto authored
usbhs_status_get_each_irq/usbhs_irq_callback_update might be called with mod == NULL Signed-off-by:
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Kuninori Morimoto authored
Signed-off-by:
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Kuninori Morimoto authored
usbhs_pdev_to_priv function will be used in other files. Signed-off-by:
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Kuninori Morimoto authored
Signed-off-by:
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Kuninori Morimoto authored
The callback function which is called from platform must be removed if module removed. Signed-off-by:
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Kuninori Morimoto authored
There are some USB Host which doesn't notice disconnection at once. And it might try some request after reconnection with old settings. Current renesas_usbhs will crash in such case. This patch prevent this issue. Signed-off-by:
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Kuninori Morimoto authored
Current renesas_usbhs driver was using spin_trylock to avoid dead lock / nest lock. But acording to CONFIG_DEBUG_SPINLOCK, it is BUG under UP environment. This patch add usbhsg_trylock to avoid this issue. Signed-off-by:
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Kuninori Morimoto authored
Because pipe buffer allocation is very picky and difficult, current renesas_usbhs driver is not caring pipe re-allocation. In this situation, driver will create new pipe without caring old pipe if "usbhsg_ep_enable" is called after "usbhsg_ep_disable" on current driver. This mean the limited pipe and buffer will be used as waste. But it is possible to re-use same buffer to same pipe. By this patch, driver will initialize pipe when it detected new connection or new gadget, and doesn't try re-allocation for same pipe in above case. Signed-off-by:
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Kuninori Morimoto authored
Pipe buffer should be cleaned before using it, but should NOT be cleaned in pipe "prepare" function. Because the pipe might be working in such timing. This patch fixup this issue. Signed-off-by:
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