BMC/Intel-BMC/linux.git/drivers/usb/dwc3/core.h, branch dev-5.3

usb: dwc3: remove unused @lock member of dwc3_ep struct

2019-06-20T08:50:19+00:00

The member @lock of dwc3_ep struct is only initialized, and not used elsewhere, so remove it. Signed-off-by: Chunfeng Yun Signed-off-by: Felipe Balbi

usb: dwc3: gadget: Add support for disabling U1 and U2 entries

2019-06-18T08:58:30+00:00

Gadget applications may have a requirement to disable the U1 and U2 entry based on the usecase. Below are few usecases where the disabling U1/U2 entries may be possible. Usecase 1: When combining dwc3 with an redriver for a USB Type-C device solution, it sometimes have problems with leaving U1/U2 for certain hosts, resulting in link training errors and reconnects. For this U1/U2 state entries may be avoided. Usecase 2: When performing performance benchmarking on mass storage gadget the U1 and U2 entries can be disabled. Usecase 3: When periodic transfers like ISOC transfers are used with bInterval of 1 which doesn't require the link to enter into U1 or U2 state entry (since ping is issued from host for every uframe interval). In this case the U1 and U2 entry can be disabled. Disablement of U1/U2 can be done by setting U1DevExitLat and U2DevExitLat values to 0 in the BOS descriptor. Host on seeing 0 value for U1DevExitLat and U2DevExitLat, it doesn't send SET_SEL requests to the gadget. There may be some hosts which may send SET_SEL requests even after seeing 0 in the UxDevExitLat of BOS descriptor. To aviod U1/U2 entries for these type of hosts, dwc3 controller can be programmed to reject those U1/U2 requests by not enabling ACCEPTUxENA bits in DCTL register. This patch updates the same. Signed-off-by: Anurag Kumar Vulisha Signed-off-by: Claus H. Stovgaard Signed-off-by: Felipe Balbi

usb: dwc3: Rename DWC3_DCTL_LPM_ERRATA

2019-05-03T06:13:49+00:00

The macro name DWC3_DCTL_LPM_ERRATA is uninformative and does not do masking. Remove DWC3_DCTL_LPM_ERRATA_MASK and rename DWC3_DCTL_LPM_ERRATA to DWC3_DCTL_NYET_THRES with proper masking. Signed-off-by: Thinh Nguyen Signed-off-by: Felipe Balbi

usb: dwc3: gadget: remove DWC3_EP_END_TRANSFER_PENDING

2019-02-04T06:46:22+00:00

Now that we modified the code to fix a race condition, it's clear that DWC3_EP_END_TRANSFER_PENDING is unnecessary, considering that DWC3_EP_TRANSFER_STARTED will remain set until End Transfer completes. Tested-by: Thinh Nguyen Signed-off-by: Felipe Balbi

usb: dwc3: gadget: remove req->started flag

2019-01-28T10:53:15+00:00

Now that we have req->status, we don't need this extra flag anymore. It's safe to remove it. Signed-off-by: Felipe Balbi

usb: dwc3: gadget: add dwc3_request status tracking

2019-01-28T10:53:15+00:00

This patch starts tracking dwc3_request status. A following patch will build on top of this to prevent a request from being queued twice. Signed-off-by: Felipe Balbi

usb: dwc3: gadget: Report isoc transfer frame number

2018-12-05T09:14:15+00:00

Implement the new frame_number API to report the isochronous interval frame number. This patch checks and reports the interval in which the isoc transfer was transmitted or received via the Isoc-First TRB SOF number field. Signed-off-by: Thinh Nguyen Signed-off-by: Felipe Balbi

usb: dwc3: gadget: check if dep->frame_number is still valid

2018-11-27T13:01:41+00:00

Gadget driver may take an unbounded amount of time to queue requests after XferNotReady. This is important for isochronous endpoints which need to be started for a specific (micro-)frame. If we fail to start a transfer for isochronous endpoint, let's try queueing to a future interval and see if that helps. We will stop trying if we fail a start transfer for 5 intervals in the future. Signed-off-by: Felipe Balbi

usb: dwc3: gadget: remove wait_end_transfer

2018-11-26T07:08:30+00:00

Now that we have a list of cancelled requests, we can skip over TRBs when END_TRANSFER command completes. Signed-off-by: Felipe Balbi

usb: dwc3: gadget: introduce cancelled_list

2018-11-26T07:08:29+00:00

This list will host cancelled requests who still have TRBs being processed. Signed-off-by: Felipe Balbi