- 09 9月, 2011 38 次提交
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由 Felipe Balbi 提交于
This flag will tell us which direction we're expecting on the next (data or status) phase. It will help us catching errors of host going crazy and requesting data of the wrong direction. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
if we don't, the list will be busy forever. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
if req->dma isn't DMA_ADDR_INVALID it means gadget driver mapped the request or allocated from coherent, so it's unnecessary to do anything. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
ensure a few bits are cleared before enabling what we need. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
We must ensure that those bits aren't set as they should only be used in simulation. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
that should be 1 << 16, not 16. Caused so many problems and we never caught it before. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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If the gadget drivers sends a ZLP we are trying to map this this request which does not work on all implementations. So we simply skip mapping it. Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
In order to ACK the IRQ we must write back to the same register the bits we read. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
dwc3-wrapper can be used by any other wrapper, using dwc3-omap makes it clear that we're running on OMAP SoC. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
We need that header because of THIS_MODULE. Reported-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
The OMAP wrapper allows us to either control internal OTG signals via SW or HW. Different boards might wish to use one or the other mode of operation. Let's have have that information passed via platform_data for now. After DT conversion is finished for OMAP, we can easily convert this to a DT attribute. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
We need to have actual HW in order to implement and test that part of the code anyway. Until then it's best to remove it. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
trivial patch, no functional changes. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
Otherwise that IRQ will trigger forever. It's quite unnecessary. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
dev_dbg() macro expects a device pointer as argument, not a memory base address. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
Start tracking the next expected event and act on the error conditions as suggested by databook. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
this field will hold the next expected event. In certain cases, host might fall into some error condition and ask from us the wrong Control phase. On such situations, we should stall and restart. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
Whenever we issue a Set Stall command on EP0, the state machine will be restarted and Stall is cleared automatically, when core receives the next SETUP packet. There's no need to track that EP0_STALL state. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
when we're going to issue Set Stall command, we should clear DWC3_EP_STALL flag, but also we should clear BUSY, HALTED and all others. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
data was prepared on setup_buf but transfer was started on ctrl_req, fix it. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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There are two spots where we wait until the HW finishes processing a certain command. Initially we had a few problems and we used 500ms as a limit to be on a the safe side. Paul Zimmerman mentioned this is little too much. After a debugging session, we noticed that we hardly ever go over 20us and didn't pass 30usec so far. Using mdelay() seems way overloaded. Giving the current numbers 500usec as the upper limit is more than enough. Should it ever timeout then something is definitely wrong. While here, also replace the type with u32 since long does not really fit here. Cc: Paul Zimmerman <paul.zimmerman@synopsys.com> Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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- since a while we are disabling an endpoint and purging every requests on RESET and DISCONNECT which leads to a warning since the endpoint was disabled twice (once by the UDC, and second time by the gadget). I think UDC should nuke all requests because all those requests become invalid. It's gadget driver's responsability, though, to disable its used endpoints. This is done by merging dwc3_stop_active_transfer() and dwc3_gadget_nuke_reqs() into dwc3_remove_requests(). - dwc3_stop_active_transfer() is now no longer called unconditionaly. This has the advantage that it is always called to disable an active transfer which means if res_trans_idx 0 than something went wrong and it is an error condition because we can't clean up the requests. - Remove the DWC3_EP_WILL_SHUTDOWN which was introduced while introducing the command complete part for dequeue. All requests on req_queued list should be removed during the dwc3_cleanup_done_reqs() callback so there is no reason to go through the list again. We consider it an error condition if requests are still on this list since we never queue TRB without LST=1 (the last requests has always LST=1, there are no requests with LST=0 behind it). [ balbi@ti.com : reworked commit log a bit, made patch apply ] Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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We read the DWC3_GSNPSID register to make sure we got the correct register offset passed. One of the recent commits moved the soft reset before this so in case of the wrong offset we end up with "reset timed out". This patch moves the "id" check before the reset again. Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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There are some issues around for enabling/disabling this mode and handling it. It does not work perfectly (yet). However we have a few gadgets tested successfuly so far. That means we are quite confident that we won't need this in near future. So I'm for removing it and bringing a working version back once there is a need for it. Thanks to Dan Carpenter who spotted the wrong memory handling here. [ balbi@ti.com : made it actually apply ] Cc: Dan Carpenter <error27@gmail.com> Cc: wharms@bfs.de Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
The DesignWare USB3 core tells us which phase of a control transfer should be started, it also tells us which physical endpoint needs that transfer. With these two informations, we have all we need to simply EP0 handling quite a lot and get rid rid of the SW state machine tracking ep0 states. For achieving this perfectly, we needed to add support for situations where we get XferNotReady while endpoint is still busy and XferNotReady while gadget driver still hasn't queued a request. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
Add a flag to keep track of ep0 direction. This flag will be used on a following patch. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
In case we have transfers which aren't aligned to wMaxPacketSize, we need to be careful with how we start the transfer with the HW. OUT transfers _must_ be aligned with wMaxPacketSize and in order to guarantee that, we use a bounce buffer. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
This core cannot handle OUT transfers which aren't aligned to wMaxPacketSize, but that can happen at least on control endpoint with the USB Audio Class. This patch adds a bounce buffer to be used on the case of a non-aligned ep0out request is queued. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
The status field of the Transfer Not Read event is different on Control Endpoints. On this patch we are just adding the defines to be used on a later patch which will re-work the control endpoint handling. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
the previous message had too little meaning. Make it more human readable and use the macro we already had for extracting the command completion status out of DEPCMDn register. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
if we don't set DMA address to invalid when unmapping, we might fall in a situation where request buffer can't be mapped to DMA again. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
trivial patch. No functional changes. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
trivial patch, no functional changes Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Dan Carpenter 提交于
We may as well fix this potential leak so we don't have to listen to the static checkers complain. Signed-off-by: NDan Carpenter <error27@gmail.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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Without this patch we won't clear that bit and instead will clear all other bits on our endpoint flag. Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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Type 6 should be used for the first transfer during an interval. This is also what the reference driver is using. Type 7 seems to be for following or additional transfers within the same interval. Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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If we collected two requests together (i.e. only the last of them has LST=1) then we only have to stop transfer once: The clean-up code will cleanup everything until first TRB with the LST bit set. After XferComplete this index should be no longer valid since there is no transfer pending. Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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A TRB which is dequeued seems to have its HWO bits set to 1. Therefore we ignore it if we dequeue it after the command is completed. Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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- 25 8月, 2011 1 次提交
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由 Randy Dunlap 提交于
Fix build error when CONFIG_USB_GADGET_DWC3 is not enabled: ERROR: "dwc3_send_gadget_ep_cmd" [drivers/usb/dwc3/dwc3.ko] undefined! Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> Acked-by: NFelipe Balbi <balbi@ti.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 24 8月, 2011 1 次提交
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由 Kuninori Morimoto 提交于
Now ${LINUX}/drivers/usb/* can use usb_endpoint_maxp(desc) to get maximum packet size instead of le16_to_cpu(desc->wMaxPacketSize). This patch fix it up Cc: Armin Fuerst <fuerst@in.tum.de> Cc: Pavel Machek <pavel@ucw.cz> Cc: Johannes Erdfelt <johannes@erdfelt.com> Cc: Vojtech Pavlik <vojtech@suse.cz> Cc: Oliver Neukum <oliver@neukum.name> Cc: David Kubicek <dave@awk.cz> Cc: Johan Hovold <jhovold@gmail.com> Cc: Brad Hards <bhards@bigpond.net.au> Acked-by: NFelipe Balbi <balbi@ti.com> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Thomas Dahlmann <dahlmann.thomas@arcor.de> Cc: David Brownell <david-b@pacbell.net> Cc: David Lopo <dlopo@chipidea.mips.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Michal Nazarewicz <m.nazarewicz@samsung.com> Cc: Xie Xiaobo <X.Xie@freescale.com> Cc: Li Yang <leoli@freescale.com> Cc: Jiang Bo <tanya.jiang@freescale.com> Cc: Yuan-hsin Chen <yhchen@faraday-tech.com> Cc: Darius Augulis <augulis.darius@gmail.com> Cc: Xiaochen Shen <xiaochen.shen@intel.com> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: OKI SEMICONDUCTOR, <toshiharu-linux@dsn.okisemi.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Ben Dooks <ben@simtec.co.uk> Cc: Thomas Abraham <thomas.ab@samsung.com> Cc: Herbert Pötzl <herbert@13thfloor.at> Cc: Arnaud Patard <arnaud.patard@rtp-net.org> Cc: Roman Weissgaerber <weissg@vienna.at> Acked-by: NSarah Sharp <sarah.a.sharp@linux.intel.com> Cc: Tony Olech <tony.olech@elandigitalsystems.com> Cc: Florian Floe Echtler <echtler@fs.tum.de> Cc: Christian Lucht <lucht@codemercs.com> Cc: Juergen Stuber <starblue@sourceforge.net> Cc: Georges Toth <g.toth@e-biz.lu> Cc: Bill Ryder <bryder@sgi.com> Cc: Kuba Ober <kuba@mareimbrium.org> Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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