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usbdev/cdcncm: fix notify overwrite issue

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we need to wait until the previous notify message is done to
send a new notify message

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
This commit is contained in:
zhanghongyu 2024-08-05 17:37:26 +08:00 committed by Xiang Xiao
parent 9f9075c48c
commit 3a25286862
1 changed files with 42 additions and 16 deletions
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58
drivers/usbdev/cdcncm.c
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@ -417,6 +417,8 @@ static void cdcncm_disconnect(FAR struct usbdevclass_driver_s *driver,
static void cdcncm_ep0incomplete(FAR struct usbdev_ep_s *ep,
FAR struct usbdev_req_s *req);
static void cdcncm_intcomplete(FAR struct usbdev_ep_s *ep,
FAR struct usbdev_req_s *req);
static void cdcncm_rdcomplete(FAR struct usbdev_ep_s *ep,
FAR struct usbdev_req_s *req);
static void cdcncm_wrcomplete(FAR struct usbdev_ep_s *ep,
@ -1424,6 +1426,39 @@ static void cdcncm_ep0incomplete(FAR struct usbdev_ep_s *ep,
}
}
/****************************************************************************
* Name: cdcncm_intcomplete
*
* Description:
* Handle completion of interrupt write request. This function probably
* executes in the context of an interrupt handler.
*
****************************************************************************/
static void cdcncm_intcomplete(FAR struct usbdev_ep_s *ep,
FAR struct usbdev_req_s *req)
{
FAR struct cdcncm_driver_s *self = (FAR struct cdcncm_driver_s *)ep->priv;
if (req->result || req->xfrd != req->len)
{
uerr("result: %hd, xfrd: %hu\n", req->result, req->xfrd);
}
if (self->notify != NCM_NOTIFY_NONE)
{
cdcncm_notify_worker(self);
}
else if (!self->isncm)
{
/* After the NIC information is synchronized, subsequent
* notifications are all related to the mbim control.
*/
self->notify = NCM_NOTIFY_RESPONSE_AVAILABLE;
}
}
/****************************************************************************
* Name: cdcncm_rdcomplete
*
@ -1715,25 +1750,16 @@ static void cdcncm_notify_worker(FAR void *arg)
FAR struct cdcncm_driver_s *self = arg;
int ret;
while (self->notify != NCM_NOTIFY_NONE)
ret = cdcncm_notify(self);
if (ret > 0)
{
ret = cdcncm_notify(self);
if (ret > 0)
{
FAR struct usbdev_req_s *notifyreq = self->notifyreq;
FAR struct usbdev_req_s *notifyreq = self->notifyreq;
notifyreq->len = ret;
notifyreq->flags = USBDEV_REQFLAGS_NULLPKT;
notifyreq->len = ret;
notifyreq->flags = USBDEV_REQFLAGS_NULLPKT;
EP_SUBMIT(self->epint, notifyreq);
}
EP_SUBMIT(self->epint, notifyreq);
}
/* After the NIC information is synchronized, subsequent notifications
* are all related to the mbim control
*/
self->notify = NCM_NOTIFY_RESPONSE_AVAILABLE;
}
/****************************************************************************
@ -2399,7 +2425,7 @@ static int cdcncm_bind(FAR struct usbdevclass_driver_s *driver,
goto error;
}
self->notifyreq->callback = cdcncm_wrcomplete;
self->notifyreq->callback = cdcncm_intcomplete;
/* Pre-allocate read requests. The buffer size is NTB_DEFAULT_IN_SIZE. */