77 lines
2.5 KiB
Diff
77 lines
2.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Felipe Balbi <felipe.balbi@linux.intel.com>
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Date: Wed, 1 Aug 2018 13:53:29 +0300
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Subject: [PATCH] usb: dwc3: gadget: introduce cancelled_list
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This list will host cancelled requests who still have TRBs being
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processed.
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Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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---
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drivers/usb/dwc3/core.h | 2 ++
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drivers/usb/dwc3/gadget.c | 1 +
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drivers/usb/dwc3/gadget.h | 15 +++++++++++++++
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3 files changed, 18 insertions(+)
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diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
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index 0de78cb..24f0b10 100644
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--- a/drivers/usb/dwc3/core.h
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+++ b/drivers/usb/dwc3/core.h
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@@ -636,6 +636,7 @@ struct dwc3_event_buffer {
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/**
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* struct dwc3_ep - device side endpoint representation
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* @endpoint: usb endpoint
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+ * @cancelled_list: list of cancelled requests for this endpoint
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* @pending_list: list of pending requests for this endpoint
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* @started_list: list of started requests on this endpoint
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* @wait_end_transfer: wait_queue_head_t for waiting on End Transfer complete
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@@ -659,6 +660,7 @@ struct dwc3_event_buffer {
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*/
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struct dwc3_ep {
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struct usb_ep endpoint;
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+ struct list_head cancelled_list;
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struct list_head pending_list;
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struct list_head started_list;
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diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
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index 3d4bcba..1a77099 100644
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--- a/drivers/usb/dwc3/gadget.c
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+++ b/drivers/usb/dwc3/gadget.c
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@@ -2171,6 +2171,7 @@ static int dwc3_gadget_init_endpoint(struct dwc3 *dwc, u8 epnum)
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INIT_LIST_HEAD(&dep->pending_list);
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INIT_LIST_HEAD(&dep->started_list);
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+ INIT_LIST_HEAD(&dep->cancelled_list);
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return 0;
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}
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diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h
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index 2aacd1a..023a473 100644
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--- a/drivers/usb/dwc3/gadget.h
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+++ b/drivers/usb/dwc3/gadget.h
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@@ -79,6 +79,21 @@ static inline void dwc3_gadget_move_started_request(struct dwc3_request *req)
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list_move_tail(&req->list, &dep->started_list);
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}
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+/**
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+ * dwc3_gadget_move_cancelled_request - move @req to the cancelled_list
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+ * @req: the request to be moved
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+ *
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+ * Caller should take care of locking. This function will move @req from its
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+ * current list to the endpoint's cancelled_list.
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+ */
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+static inline void dwc3_gadget_move_cancelled_request(struct dwc3_request *req)
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+{
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+ struct dwc3_ep *dep = req->dep;
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+
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+ req->started = false;
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+ list_move_tail(&req->list, &dep->cancelled_list);
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+}
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+
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void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
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int status);
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--
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https://clearlinux.org
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