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usb: dwc3: gadget: keep track of allocated and queued reqs 

We will be using this information to change how we
figure out when we need LST bit. For now, just
update our counters.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
hifive-unleashed-5.1
Felipe Balbi 2016-05-30 13:34:58 +03:00
parent b6b1c6db4c
commit 68d34c8a74
3 changed files with 18 additions and 2 deletions
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4
drivers/usb/dwc3/core.h
View File

@ -497,6 +497,8 @@ struct dwc3_event_buffer {
* @type: set to bmAttributes & USB_ENDPOINT_XFERTYPE_MASK
* @resource_index: Resource transfer index
* @interval: the interval on which the ISOC transfer is started
* @allocated_requests: number of requests allocated
* @queued_requests: number of requests queued for transfer
* @name: a human readable name e.g. ep1out-bulk
* @direction: true for TX, false for RX
* @stream_capable: true when streams are enabled
@ -541,6 +543,8 @@ struct dwc3_ep {
u8 number;
u8 type;
u8 resource_index;
u32 allocated_requests;
u32 queued_requests;
u32 interval;
char name[20];

7
drivers/usb/dwc3/gadget.c
View File

@ -741,6 +741,8 @@ static struct usb_request *dwc3_gadget_ep_alloc_request(struct usb_ep *ep,
req->epnum = dep->number;
req->dep = dep;
dep->allocated_requests++;
trace_dwc3_alloc_request(req);
return &req->request;
@ -750,7 +752,9 @@ static void dwc3_gadget_ep_free_request(struct usb_ep *ep,
struct usb_request *request)
{
struct dwc3_request *req = to_dwc3_request(request);
struct dwc3_ep *dep = to_dwc3_ep(ep);
dep->allocated_requests--;
trace_dwc3_free_request(req);
kfree(req);
}
@ -831,6 +835,8 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep,
trb->ctrl |= DWC3_TRB_CTRL_HWO;
dep->queued_requests++;
trace_dwc3_prepare_trb(dep, trb);
}
@ -1936,6 +1942,7 @@ static int __dwc3_cleanup_done_trbs(struct dwc3 *dwc, struct dwc3_ep *dep,
unsigned int s_pkt = 0;
unsigned int trb_status;
dep->queued_requests--;
trace_dwc3_complete_trb(dep, trb);
if ((trb->ctrl & DWC3_TRB_CTRL_HWO) && status != -ESHUTDOWN)

9
drivers/usb/dwc3/trace.h
View File

@ -231,6 +231,8 @@ DECLARE_EVENT_CLASS(dwc3_log_trb,
TP_STRUCT__entry(
__dynamic_array(char, name, DWC3_MSG_MAX)
__field(struct dwc3_trb *, trb)
__field(u32, allocated)
__field(u32, queued)
__field(u32, bpl)
__field(u32, bph)
__field(u32, size)
@ -239,13 +241,16 @@ DECLARE_EVENT_CLASS(dwc3_log_trb,
TP_fast_assign(
snprintf(__get_str(name), DWC3_MSG_MAX, "%s", dep->name);
__entry->trb = trb;
__entry->allocated = dep->allocated_requests;
__entry->queued = dep->queued_requests;
__entry->bpl = trb->bpl;
__entry->bph = trb->bph;
__entry->size = trb->size;
__entry->ctrl = trb->ctrl;
),
TP_printk("%s: trb %p buf %08x%08x size %d ctrl %08x (%c%c%c%c:%c%c:%s)",
__get_str(name), __entry->trb, __entry->bph, __entry->bpl,
TP_printk("%s: %d/%d trb %p buf %08x%08x size %d ctrl %08x (%c%c%c%c:%c%c:%s)",
__get_str(name), __entry->queued, __entry->allocated,
__entry->trb, __entry->bph, __entry->bpl,
__entry->size, __entry->ctrl,
__entry->ctrl & DWC3_TRB_CTRL_HWO ? 'H' : 'h',
__entry->ctrl & DWC3_TRB_CTRL_LST ? 'L' : 'l',