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path: root/drivers/usb/dwc2
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2016-11-18usb: dwc2: gadget: Add DMA descriptor status quadlet fieldsVahram Aharonyan1-0/+37
Add device mode DMA transfer descriptor status quadlet field notations. Signed-off-by: Vahram Aharonyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: gadget: Add descriptor DMA parameterVahram Aharonyan3-0/+19
Add a parameter for descriptor DMA and set it based on hardware capabilities. This won't actually be used by the gadget until later, when the descriptor DMA code is in place. Signed-off-by: Vahram Aharonyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Make the DMA descriptor structure packedVahram Aharonyan1-1/+1
Make the DMA descriptor structure packed to guarantee alignment and size in memory. Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Update DMA descriptor structureVahram Aharonyan4-29/+30
Rename DMA descriptor structure from dwc2_hcd_dma_desc to dwc2_dma_desc as it is applies to both host and gadget. Signed-off-by: Vahram Aharonyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Deprecate g-use-dma bindingJohn Youn3-7/+15
This is not needed as the gadget now fully supports DMA and it can autodetect it. This was initially added because gadget DMA mode was only partially implemented so could not be automatically enabled. Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Fix coverity issue in hcd_queue.cVardan Mikayelyan1-33/+36
This fixes the coverity issues related to unreachable code with debugging off. Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Fix dead code in hcd.cVardan Mikayelyan1-5/+0
Because usb_pipetype() masks urb->pipe, the default case can never be hit. Remove it. This cleans up a coverity warning. Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: gadget: Update for new usb_endpoint_maxp()Vardan Mikayelyan1-19/+23
Update the dwc2 driver for the new behavior of the usb_endpoint_maxp() and also use the new usb_endpoint_maxp_mult() helper function. This commit fixes failures in high-badwith ISOC transfer tests. Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Add PCI propertiesVahram Aharonyan1-0/+19
Add device parameters handling in dwc2-pci similar what is done in dwc3. Signed-off-by: Vahram Aharonyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Get host DMA device propertiesJohn Youn2-31/+23
The driver will automatically enable host DMA and use it if available. This is consistent with the behavior of all existing platforms. Read in the "snps,host-dma-disable" device property to disable it. Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Rename the dma_enable parameter to host_dmaJohn Youn4-51/+51
Rename it so that it is more consistent with the gadget dma parameter. It only affects host-mode operation so prefix it with "host". Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Move gadget settings into core_paramsJohn Youn3-91/+296
Move the gadget devicetree settings into the core_params structure and document them. Then set and check them in params.c, with the addition of some helper functions, and remove the equivalent code in gadget.c. Because these parameters came from the standalone s3c driver, they have a fixed default value rather than an autodetected one. Preserve and document this behavior to avoid any compatibility issues. Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Rename host_rx_fifo_size hardware parameterJohn Youn2-6/+6
This hardware parameter is not host specific. It also applies to device mode. Drop the "host" from the name to make that clear. Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Remove unnecessary prototypesJohn Youn2-235/+54
Remove the unnecessary prototypes for all the parameter setting functions and declare those functions 'static' in the params.c file. Also remove the duplicate documentation that went along with them. They are already documented as part of the params structure definition. Then move the constants that went along with the prototype into the structure. Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Remove dwc2_set_all_params functionJohn Youn3-38/+44
Replace this by statically defining a function with defaults, and just assigning it. This will allow us to use parameters of any type and any default value. Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Move parameter initialization into params.cJohn Youn3-23/+36
Consolidate and move all the parameter initialization code from the probe function to params.c. Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Declare the core params struct staticallyJohn Youn10-181/+176
This makes it consistent with the hw_params struct and simplifies the memory management for future refactoring. Fix up usage in all files. Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Add params.c fileJohn Youn5-1089/+1133
Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Remove unused hardware parameterJohn Youn1-1/+0
The dma_desc_fs_enable does not correspond to any hardware parameter and is unused. Remove it. Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-18usb: dwc2: Remove unnecessary kfreeJohn Youn1-1/+0
This shouldn't be freed by the HCD as it is owned by the core and allocated with devm_kzalloc. Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-11-03usb: dwc2: cleanup with list_first_entry_or_null()Masahiro Yamada1-4/+2
The combo of list_empty() check and return list_first_entry() can be replaced with list_first_entry_or_null(). Signed-off-by: Masahiro Yamada <[email protected]> Acked-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-10-18Revert "usb: dwc2: gadget: fix TX FIFO size and address initialization"John Youn2-8/+46
This reverts commit aa381a7259c3 ("usb: dwc2: gadget: fix TX FIFO size and address initialization"). The original commit removed the FIFO size programming per endpoint. The DPTXFSIZn register is also used for DIEPTXFn and the SIZE field is r/w in dedicated fifo mode. So it isn't appropriate to simply remove this initialization as it might break existing behavior. Also, some cores might not have enough fifo space to handle the programming method used in the reverted patch, resulting in fifo initialization failure. Signed-off-by: John Youn <[email protected]> Cc: Robert Baldyga <[email protected]> Cc: Stefan Wahren <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-10-18Revert "usb: dwc2: gadget: change variable name to more meaningful"John Youn1-4/+4
This reverts commit ba48eab8866c ("usb: dwc2: gadget: change variable name to more meaningful"). This is needed to cleanly revert commit aa381a7259c3 ("usb: dwc2: gadget: fix TX FIFO size and address initialization") which may cause regressions on some platforms. Signed-off-by: John Youn <[email protected]> Cc: Robert Baldyga <[email protected]> Cc: Stefan Wahren <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-10-17usb: dwc2: Add msleep for host-onlyHeiko Stuebner1-1/+10
Although a host-only controller should not have any associated delay, some rockchip SOC platforms will not show the correct host-values of registers until after a delay. So add a 50 ms sleep when in host-only mode. Signed-off-by: John Youn <[email protected]> Signed-off-by: Heiko Stuebner <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-10-07Merge tag 'armsoc-late' of ↵Linus Torvalds1-0/+34
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC late DT updates from Arnd Bergmann: "These updates have been kept in a separate branch mostly because they rely on updates to the respective clk drivers to keep the shared header files in sync. - The Renesas r8a7796 (R-Car M3-W) platform gets added, this is an automotive SoC similar to the ⅹ8a7795 chip we already support, but the dts changes rely on a clock driver change that has been merged for v4.9 through the clk tree. - The Amlogic meson-gxbb (S905) platform gains support for a few drivers merged through our tree, in particular the network and usb driver changes are required and included here, and also the clk tree changes. - The Allwinner platforms have seen a large-scale change to their clk drivers and the dts file updates must come after that. This includes the newly added Nextthing GR8 platform, which is derived from sun5i/A13. - Some integrator (arm32) changes rely on clk driver changes. - A single patch for lpc32xx has no such dependency but wasn't added until just before the merge window" * tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (99 commits) ARM: dts: lpc32xx: add device node for IRAM on-chip memory ARM: dts: sun8i: Add accelerometer to polaroid-mid2407pxe03 ARM: dts: sun8i: enable UART1 for iNet D978 Rev2 board ARM: dts: sun8i: add pinmux for UART1 at PG dts: sun8i-h3: add I2C0-2 peripherals to H3 SOC dts: sun8i-h3: add pinmux definitions for I2C0-2 dts: sun8i-h3: associate exposed UARTs on Orange Pi Boards dts: sun8i-h3: split off RTS/CTS for UART1 in seperate pinmux dts: sun8i-h3: add pinmux definitions for UART2-3 ARM: dts: sun9i: a80-optimus: Disable EHCI1 ARM: dts: sun9i: cubieboard4: Add AXP806 PMIC device node and regulators ARM: dts: sun9i: a80-optimus: Add AXP806 PMIC device node and regulators ARM: dts: sun9i: cubieboard4: Declare AXP809 SW regulator as unused ARM: dts: sun9i: a80-optimus: Declare AXP809 SW regulator as unused ARM: dts: sun8i: Add touchscreen node for sun8i-a33-ga10h ARM: dts: sun8i: Add touchscreen node for sun8i-a23-polaroid-mid2809pxe04 ARM: dts: sun8i: Add touchscreen node for sun8i-a23-polaroid-mid2407pxe03 ARM: dts: sun8i: Add touchscreen node for sun8i-a23-inet86dz ARM: dts: sun8i: Add touchscreen node for sun8i-a23-gt90h ARM64: dts: meson-gxbb-vega-s95: Enable USB Nodes ...
2016-09-14Merge tag 'usb-for-v4.9' of ↵Greg Kroah-Hartman4-86/+135
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next Felipe writes: usb: patches for v4.9 merge window This time around we have 92 non-merge commits. Most of the changes are in drivers/usb/gadget (40.3%) with drivers/usb/gadget/function being the most active directory (27.2%). As for UDC drivers, only dwc3 (26.5%) and dwc2 (12.7%) have really been active. The most important changes for dwc3 are better support for scatterlist and, again, throughput improvements. While on dwc2 got some minor stability fixes related to soft reset and FIFO usage. Felipe Tonello has done some good work fixing up our f_midi gadget and Tal Shorer has implemented a nice API change for our ULPI bus. Apart from these, we have our usual set of non-critical fixes, spelling fixes, build warning fixes, etc.
2016-09-14usb: dwc2: add support for Meson8b and GXBB SoCsJerome Brunet1-0/+34
Add compatible strings for amlogic Meson8b and GXBB SoCs with the corresponding configuration parameters. Signed-off-by: Jerome Brunet <[email protected]> Signed-off-by: Martin Blumenstingl <[email protected]> Acked-by: John Youn <[email protected]> Signed-off-by: Kevin Hilman <[email protected]>
2016-09-08usb: dwc2: Properly account for the force mode delaysJohn Youn1-17/+14
When a force mode bit is set and the IDDIG debounce filter is enabled, there is a delay for the forced mode to take effect. This delay is due to the IDDIG debounce filter and is variable depending on the platform's PHY clock speed. To account for this delay we can poll for the expected mode. On a clear force mode, since we don't know what mode to poll for, delay for a fixed 100 ms. This is the maximum delay based on the slowest PHY clock speed. Tested-by: Stefan Wahren <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-09-08usb: dwc2: Add delay to core soft resetJohn Youn3-0/+97
Add a delay to the core soft reset function to account for the IDDIG debounce filter. If the current mode is host, either due to the force mode bit being set (which persists after core reset) or the connector id pin, a core soft reset will temporarily reset the mode to device and a delay from the IDDIG debounce filter will occur before going back to host mode. Tested-by: Stefan Wahren <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-09-08usb: dwc2: gadget: Only initialize device if in device modeJohn Youn1-2/+5
In dwc2_hsotg_udc_start(), don't initialize the controller for device mode unless we are actually in device mode. Tested-by: Heiko Stuebner <[email protected]> Tested-by: Stefan Wahren <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-09-05Merge 4.8-rc5 into usb-testingGreg Kroah-Hartman2-0/+23
We want the USB fixes in here for testing and merge issues. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-08-31usb: dwc2: gadget: free TX FIFO after killing requestsRobert Baldyga1-4/+4
As kill_all_requests() potentially flushes TX FIFO, we should should free FIFO after calling it. Otherwise FIFO could stay unflushed properly. Signed-off-by: Robert Baldyga <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-08-31usb: dwc2: gadget: remove dead code from dwc2_hsotg_ep_enable()Robert Baldyga1-12/+1
Since FIFO is always freed in dwc2_hsotg_ep_disable(), ep->fifo_index is always 0 in dwc2_hsotg_ep_enable(), hence code inside if() block is never executed. Signed-off-by: Robert Baldyga <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-08-31usb: dwc2: gadget: change variable name to more meaningfulRobert Baldyga1-4/+4
Since we handle FIFOs and endpoint separately, using variable named 'ep' in context of FIFO is misleading, hence we rename it to 'fifo'. Signed-off-by: Robert Baldyga <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-08-31usb: dwc2: gadget: fix TX FIFO size and address initializationRobert Baldyga2-46/+8
According to DWC2 documentation, DPTxFSize field of DPTXFSIZn register is read only, which means that software cannot change FIFO size. Register description says: "The value of this register is the Largest Device Mode Periodic Tx Data FIFO Depth (parameter OTG_TX_DPERIO_DFIFO_DEPTH_n), as specified during coreConsultant configuration." That means, that we have to setup only FIFO start addresses (DPTxFStAddr), taking into account reset values of DPTxFSize. Initialize FIFO start addresses properly and remove unneeded core related to incorrect FIFO size initialization. Signed-off-by: Robert Baldyga <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-08-31usb: dwc2: gadget: use ep->fifo_index in context of FIFO registersRobert Baldyga1-2/+3
In context of FIFO registers we use ep->fifo_index instead of ep->index. Signed-off-by: Robert Baldyga <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-08-30usb: dwc2: gadget: don't print on ENOMEMWolfram Sang1-6/+2
All kmalloc-based functions print enough information on failures. Signed-off-by: Wolfram Sang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-08-29usb: dwc2: gadget: don't print on ENOMEMWolfram Sang1-6/+2
All kmalloc-based functions print enough information on failures. Signed-off-by: Wolfram Sang <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-08-25usb: dwc2: Remove deprecated create_singlethread_workqueueBhaktipriya Shridhar1-1/+1
alloc_ordered_workqueue replaces the deprecated create_singlethread_workqueue. There are multiple work items on the work queue, which require ordering. Hence, an ordered workqueue has been used. The workqueue "wq_otg" is not being used on a memory reclaim path. Hence, WQ_MEM_RECLAIM has not been set. Acked-by: John Youn <[email protected]> Signed-off-by: Bhaktipriya Shridhar <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-08-22usb: dwc2: Add reset control to dwc2Dinh Nguyen2-0/+23
Allow for platforms that have a reset controller driver in place to bring the USB IP out of reset. Signed-off-by: Dinh Nguyen <[email protected]> Acked-by: John Youn <[email protected]> Tested-by: Stefan Wahren <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-08-09usb: dwc2: Remove deprecated create_singlethread_workqueueBhaktipriya Shridhar1-1/+1
alloc_ordered_workqueue replaces the deprecated create_singlethread_workqueue. There are multiple work items on the work queue, which require ordering. Hence, an ordered workqueue has been used. The workqueue "wq_otg" is not being used on a memory reclaim path. Hence, WQ_MEM_RECLAIM has not been set. Signed-off-by: Bhaktipriya Shridhar <[email protected]> Acked-by: Tejun Heo <[email protected]> Acked-by: John Youn <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-06-29USB: dwc2-usb: add USB_GADGET dependencyArnd Bergmann1-0/+1
The driver selects NOP_USB_XCEIV, which can only be built-in if USB_GADGET is either disabled or also built-in, so with USB_DWC2_PCI=y and USB_GADGET=m, NOP_USB_XCEIV is also built-in and we get this link error: drivers/usb/built-in.o: In function `nop_set_peripheral': (text+0x1927c): undefined reference to `usb_gadget_vbus_connect' drivers/usb/built-in.o: In function `nop_gpio_vbus_thread': (text+0x197a0): undefined reference to `usb_gadget_vbus_connect' (text+0x19830): undefined reference to `usb_gadget_vbus_disconnect' This adds the same dependency for the dwc2 driver to avoid that broken configuration. Signed-off-by: Arnd Bergmann <[email protected]> Acked-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-06-29usb: dwc2: add printf attribute to cat_printf()Nicolas Iooss1-1/+2
As cat_printf() uses printf format strings in its parameters, adding __printf attribute allows the compiler to detect at compile-time some errors related to format strings (with -Wformat warning flag). Signed-off-by: Nicolas Iooss <[email protected]> Acked-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-06-21usb: dwc2: gadget: Final fixes for BDMA ISOCVardan Mikayelyan3-28/+71
Done fixes and tested hsotg gadget's BDMA mode. Tested Control, Bulk, Isoc, Inter transfers. Added code for isoc transfers, removed unusable code, done minor fixes. Affected functions and IRQ handlers: - dwc2_hsotg_start_req(), - dwc2_hsotg_ep_enable(), - dwc2_hsotg_ep_queue(), - dwc2_hsotg_handle_outdone(), - GINTSTS_GOUTNAKEFF handler, Removed 'has_correct_parity' flag from 'dwc2_hsotg_ep' struct. Before this patch series, to set the data pid the DWC2 gadget driver was toggling the even/odd until it match, then were leaving it set. But now I have added mechanism to set pid and excluded all code where this flag was set. Tested-by: John Keeping <[email protected]> Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-06-21usb: dwc2: gadget: Add EP disabled interrupt handlerVardan Mikayelyan1-17/+70
Reimplemented EP disabled interrupt handler and moved to corresponding function. This interrupt indicates that the endpoint has been disabled per the application's request. For IN endpoints flushes txfifo, in case of BULK clears DCTL_CGNPINNAK, in case of ISOC completes current request. For ISOC-OUT endpoints completes expired requests. If there is remaining request starts it. This is the part of ISOC-OUT transfer drop flow. When ISOC-OUT transfer expired we must disable ep to drop ongoing transfer. Tested-by: John Keeping <[email protected]> Reviewed-by: Vahram Aharonyan <[email protected]> Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-06-21usb: dwc2: gadget: Add Incomplete ISO IN/OUT Interrupt handlersVardan Mikayelyan1-49/+124
Incomplete ISO IN interrupt indicates one of the following conditions occurred while transmitting an ISOC transaction. - Corrupted IN Token for ISOC EP. - Packet not complete in FIFO. Incomplete ISO OUT indicates that there is at least one isochronous OUT endpoint on which the transfer is not completed in the current microframe. The following actions will be taken: In case of EP-IN - Determine the EP - Disable EP directly from this handler; when "Endpoint Disabled" interrupt is received flush FIFO In case of EP-OUT - Determine the EP - If target frame elapsed set DCTL_SGOUTNAK, unmask GOUTNAKEFF and proceed as described in section 7.5.1 of DWC-HSOTG Programming Guide Also added dwc2_gadget_target_frame_elapsed() helper function which will be used in Incomplete ISO IN/OUT Interrupt handlers. Tested-by: John Keeping <[email protected]> Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-06-21usb: dwc2: gadget: Add OUTTKNEPDIS and NAKINTRPT handlersVardan Mikayelyan1-0/+94
NAKINTRPT interrupt is starting point for isoc-in transfer, synchronization done with first in token received from host, core asserts this interrupt when responds with 0 length data to in token, received from host. The first IN token is asynchronous for device - device does not know when first one token will arrive from host. On first token arrival HW generates 2 interrupts: 'in token received while FIFO empty' and 'NAK'. NAK interrupt for ISOC in means that token has arrived and ZLP was sent in response to that as there was no data in FIFO. SW is basing on this interrupt to obtain frame in which token has come and then based on the interval calculates next frame for transfer. OUTTKNEPDIS interrupt is starting point for isoc-out transfer, synchronization done with first out token received from host while corresponding ep is disabled. For OUTs the reason is same - device does not know initial frame in which out token will come. For this HW generates OUTTKNEPDIS - out token is received while EP is disabled. Upon getting this interrupt SW starts calculation for next transfer frame. Tested-by: John Keeping <[email protected]> Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-06-21usb: dwc2: gadget: Add dwc2_gadget_start_next_request functionVardan Mikayelyan1-13/+38
Replaced repeating code with function call. Starts next request from ep queue. If queue is empty and ep is isoc -In case of OUT-EP unmasks OUTTKNEPDIS. OUTTKNEPDIS is masked in it's handler, so we need to unmask it here to be able to do resynchronization. Tested-by: John Keeping <[email protected]> Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-06-21usb: dwc2: gadget: Add dwc2_gadget_read_ep_interrupts functionVardan Mikayelyan1-1/+29
Reads and returns interrupts for given endpoint, by masking epint_reg with corresponding mask. Tested-by: John Keeping <[email protected]> Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-06-21usb: dwc2: gadget: Corrected interval calculationVardan Mikayelyan2-5/+5
Calculate the interval according to the USB 2.0 specification section 9.6.6. Tested-by: John Keeping <[email protected]> Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
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