- 04 Aug, 2015 38 commits
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
Robert Baldyga <r.baldyga@samsung.com> Signed-off-by:
Felipe Balbi <balbi@ti.com>
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Signed-off-by:
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Robert Baldyga authored
Convert endpoint configuration to new capabilities model. Fixed typo in "epc-nulk" to "epc-bulk". Signed-off-by:
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Robert Baldyga authored
Add macros useful while initializing array of endpoint capabilities structures. These macros makes structure initialization more compact to decrease number of code lines and increase readability of code. Signed-off-by:
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Robert Baldyga authored
Introduce struct usb_ep_caps which contains information about capabilities of usb endpoints - supported transfer types and directions. This structure should be filled by UDC driver for each of its endpoints, and will be used in epautoconf in new ep matching mechanism which will replace ugly guessing of endpoint capabilities basing on its name. Signed-off-by:
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Robert Baldyga authored
So far it was necessary for usb functions to set ep->driver_data in endpoint obtained from autoconfig to non-null value, to indicate that endpoint is claimed by function (in autoconfig it was checked if endpoint has set this field to non-null value, and if it has, it was assumed that it is claimed). It could cause bugs because if some function doesn't set this field autoconfig could return the same endpoint more than one time. To help to avoid such bugs this patch adds claimed flag to struct usb_ep, and encapsulates endpoint claiming mechanism inside usb_ep_autoconfig_ss() and usb_ep_autoconfig_reset(), so now usb functions don't need to perform any additional actions to mark endpoint obtained from autoconfig as claimed. Signed-off-by:
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Felipe Balbi authored
commit 913e4a90 ("usb: gadget: f_uac2: finalize wMaxPacketSize according to bandwidth") added a possible build warning when calling min(). In order to fix the warning, we just make sure to call min_t() and tell that its arguments should be u16. Cc: Peter Chen <peter.chen@freescale.com> Signed-off-by:
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Saurabh Karajgaonkar authored
Replace redundant variable use in return statement. Signed-off-by:
Saurabh Karajgaonkar <skarajga@visteon.com> Signed-off-by:
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Saurabh Karajgaonkar authored
Replace redundant variable use in return statement. Signed-off-by:
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Saurabh Karajgaonkar authored
Replace redundant variable use in return statement. Signed-off-by:
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- 03 Aug, 2015 2 commits
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Li Jun authored
Since some chipidea based controller is not otg capable, add ci->is_otg condition when setting is_otg flag for gadget. Signed-off-by:
Li Jun <jun.li@freescale.com> Reviewed-by:
Roger Quadros <rogerq@ti.com> Acked-by:
Peter Chen <peter.chen@freescale.com> Signed-off-by:
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Fupan Li authored
Function printer_func_disable() has called spinlock on printer_dev->lock, and it'll call function chain of printer_reset_interface() | +---dwc3_gadget_ep_disable() | +---__dwc3_gadget_ep_disable() | +---dwc3_remove_requests() | +---dwc3_gadget_giveback() | +---rx_complete() in the protected block. However, rx_complete() in f_printer.c calls spinlock on printer_dev->lock again, which will cause system hang. The following steps can reproduce this hang: 1. Build the test program from Documentation/usb/gadget_printer.txt as g_printer 2. Plug in the USB device to a host(such as Ubuntu). 3. on the USB device system run: #modprobe g_printer.ko #./g_printer -read_data 4. Unplug the USB device from the host The system will hang later. In order to avoid this deadlock, moving the spinlock from printer_func_disable() into printer_reset_interface() and excluding the block of calling dwc3_gadget_ep_disable(), in which the critical resource will be protected by its spinlock in rx_complete(). This commit will fix the system hang with the following calltrace: INFO: rcu_preempt detected stalls on CPUs/tasks: { 3} (detected by 0, t=21006 jiffies, g=524, c=523, q=2) sending NMI to all CPUs: NMI backtrace for cpu 3 CPU: 3 PID: 718 Comm: irq/22-dwc3 Not tainted 3.10.38-ltsi-WR6.0.0.11_standard #2 Hardware name: Intel Corp. VALLEYVIEW B3 PLATFORM/NOTEBOOK, BIOS BYTICRB1.86C.0092.R32.1410021707 10/02/2014 task: f44f4c20 ti: f40f6000 task.ti: f40f6000 EIP: 0060:[<c1824955>] EFLAGS: 00000097 CPU: 3 EIP is at _raw_spin_lock_irqsave+0x35/0x40 EAX: 00000076 EBX: f80fad00 ECX: 00000076 EDX: 00000075 ESI: 00000096 EDI: ffffff94 EBP: f40f7e20 ESP: f40f7e18 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 CR0: 8005003b CR2: b77ac000 CR3: 01c30000 CR4: 001007f0 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 Stack: f474a720 f80fad00 f40f7e3c f80f93cc c135d486 00000000 f474a720 f468fb00 f4bea894 f40f7e54 f7e35f19 ffffff00 f468fb00 f468fb24 00000086 f40f7e64 f7e36577 f468fb00 f4bea810 f40f7e74 f7e365a8 f468fb00 f4bea894 f40f7e9c Call Trace: [<f80f93cc>] rx_complete+0x1c/0xb0 [g_printer] [<c135d486>] ? vsnprintf+0x166/0x390 [<f7e35f19>] dwc3_gadget_giveback+0xc9/0xf0 [dwc3] [<f7e36577>] dwc3_remove_requests+0x57/0x70 [dwc3] [<f7e365a8>] __dwc3_gadget_ep_disable+0x18/0x60 [dwc3] [<f7e366e9>] dwc3_gadget_ep_disable+0x89/0xf0 [dwc3] [<f80f9031>] printer_reset_interface+0x31/0x50 [g_printer] [<f80f9270>] printer_func_disable+0x20/0x30 [g_printer] [<f80e6d8b>] composite_disconnect+0x4b/0x90 [libcomposite] [<f7e39a8b>] dwc3_disconnect_gadget+0x38/0x43 [dwc3] [<f7e39ad4>] dwc3_gadget_disconnect_interrupt+0x3e/0x5a [dwc3] [<f7e373b8>] dwc3_thread_interrupt+0x5c8/0x610 [dwc3] [<c10ac518>] irq_thread_fn+0x18/0x30 [<c10ac800>] irq_thread+0x100/0x130 [<c10ac500>] ? irq_finalize_oneshot.part.29+0xb0/0xb0 [<c10ac650>] ? wake_threads_waitq+0x40/0x40 [<c10ac700>] ? irq_thread_dtor+0xb0/0xb0 [<c1057224>] kthread+0x94/0xa0 [<c182b337>] ret_from_kernel_thread+0x1b/0x28 [<c1057190>] ? kthread_create_on_node+0xc0/0xc0 Signed-off-by:Fupan Li <fupan.li@windriver.com> Signed-off-by:
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