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usb: dwc3: gadget: remove unnecessary 'dwc' parameter

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Endpoint handlers need to know about endpoints, not dwc. If they
really need access to dwc (e.g. for printing error messages) we have a
reference to it tucked inside the endpoint.

This patch has no functional changes, it's simply moving things around.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Felipe Balbi 2018-03-27 10:53:29 +03:00
parent 320338651d
commit 8f608e8ab6
1 changed files with 32 additions and 36 deletions
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68
drivers/usb/dwc3/gadget.c
View file

@ -703,12 +703,12 @@ out:
return 0;
}
static void dwc3_stop_active_transfer(struct dwc3 *dwc, u32 epnum, bool force);
static void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force);
static void dwc3_remove_requests(struct dwc3 *dwc, struct dwc3_ep *dep)
{
struct dwc3_request *req;
dwc3_stop_active_transfer(dwc, dep->number, true);
dwc3_stop_active_transfer(dep, true);
/* - giveback all requests to gadget driver */
while (!list_empty(&dep->started_list)) {
@ -1275,11 +1275,10 @@ static int __dwc3_gadget_get_frame(struct dwc3 *dwc)
return DWC3_DSTS_SOFFN(reg);
}
static void __dwc3_gadget_start_isoc(struct dwc3 *dwc,
struct dwc3_ep *dep, u32 cur_uf)
static void __dwc3_gadget_start_isoc(struct dwc3_ep *dep, u32 cur_uf)
{
if (list_empty(&dep->pending_list)) {
dev_info(dwc->dev, "%s: ran out of requests\n",
dev_info(dep->dwc->dev, "%s: ran out of requests\n",
dep->name);
dep->flags |= DWC3_EP_PENDING_REQUEST;
return;
@ -1329,13 +1328,13 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
if ((dep->flags & DWC3_EP_PENDING_REQUEST)) {
if (dep->flags & DWC3_EP_TRANSFER_STARTED) {
dwc3_stop_active_transfer(dwc, dep->number, true);
dwc3_stop_active_transfer(dep, true);
dep->flags = DWC3_EP_ENABLED;
} else {
u32 cur_uf;
cur_uf = __dwc3_gadget_get_frame(dwc);
__dwc3_gadget_start_isoc(dwc, dep, cur_uf);
__dwc3_gadget_start_isoc(dep, cur_uf);
dep->flags &= ~DWC3_EP_PENDING_REQUEST;
}
return 0;
@ -1398,7 +1397,7 @@ static int dwc3_gadget_ep_dequeue(struct usb_ep *ep,
}
if (r == req) {
/* wait until it is processed */
dwc3_stop_active_transfer(dwc, dep->number, true);
dwc3_stop_active_transfer(dep, true);
/*
* If request was already started, this means we had to
@ -2231,10 +2230,9 @@ static void dwc3_gadget_free_endpoints(struct dwc3 *dwc)
/* -------------------------------------------------------------------------- */
static int dwc3_gadget_ep_reclaim_completed_trb(struct dwc3 *dwc,
struct dwc3_ep *dep, struct dwc3_request *req,
struct dwc3_trb *trb, const struct dwc3_event_depevt *event,
int status, int chain)
static int dwc3_gadget_ep_reclaim_completed_trb(struct dwc3_ep *dep,
struct dwc3_request *req, struct dwc3_trb *trb,
const struct dwc3_event_depevt *event, int status, int chain)
{
unsigned int count;
unsigned int s_pkt = 0;
@ -2294,7 +2292,7 @@ static int dwc3_gadget_ep_reclaim_completed_trb(struct dwc3 *dwc,
*/
dep->flags |= DWC3_EP_MISSED_ISOC;
} else {
dev_err(dwc->dev, "incomplete IN transfer %s\n",
dev_err(dep->dwc->dev, "incomplete IN transfer %s\n",
dep->name);
status = -ECONNRESET;
}
@ -2316,9 +2314,8 @@ static int dwc3_gadget_ep_reclaim_completed_trb(struct dwc3 *dwc,
return 0;
}
static int dwc3_gadget_ep_cleanup_completed_requests(struct dwc3 *dwc,
struct dwc3_ep *dep, const struct dwc3_event_depevt *event,
int status)
static int dwc3_gadget_ep_cleanup_completed_requests(struct dwc3_ep *dep,
const struct dwc3_event_depevt *event, int status)
{
struct dwc3_request *req, *n;
struct dwc3_trb *trb;
@ -2346,22 +2343,22 @@ static int dwc3_gadget_ep_cleanup_completed_requests(struct dwc3 *dwc,
req->sg = sg_next(s);
req->num_pending_sgs--;
ret = dwc3_gadget_ep_reclaim_completed_trb(dwc,
dep, req, trb, event, status,
ret = dwc3_gadget_ep_reclaim_completed_trb(dep,
req, trb, event, status,
chain);
if (ret)
break;
}
} else {
trb = &dep->trb_pool[dep->trb_dequeue];
ret = dwc3_gadget_ep_reclaim_completed_trb(dwc, dep,
req, trb, event, status, chain);
ret = dwc3_gadget_ep_reclaim_completed_trb(dep, req,
trb, event, status, chain);
}
if (req->unaligned || req->zero) {
trb = &dep->trb_pool[dep->trb_dequeue];
ret = dwc3_gadget_ep_reclaim_completed_trb(dwc, dep,
req, trb, event, status, false);
ret = dwc3_gadget_ep_reclaim_completed_trb(dep, req,
trb, event, status, false);
req->unaligned = false;
req->zero = false;
}
@ -2375,7 +2372,7 @@ static int dwc3_gadget_ep_cleanup_completed_requests(struct dwc3 *dwc,
* to kick transfer again if (req->num_pending_sgs > 0)
*/
if (req->num_pending_sgs) {
dev_WARN_ONCE(dwc->dev,
dev_WARN_ONCE(dep->dwc->dev,
(req->request.actual == length),
"There are some pending sg's that needs to be queued again\n");
return __dwc3_gadget_kick_transfer(dep);
@ -2411,7 +2408,7 @@ static int dwc3_gadget_ep_cleanup_completed_requests(struct dwc3 *dwc,
*/
dep->flags = DWC3_EP_PENDING_REQUEST;
} else {
dwc3_stop_active_transfer(dwc, dep->number, true);
dwc3_stop_active_transfer(dep, true);
dep->flags = DWC3_EP_ENABLED;
}
return 1;
@ -2423,16 +2420,17 @@ static int dwc3_gadget_ep_cleanup_completed_requests(struct dwc3 *dwc,
return 1;
}
static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3 *dwc,
struct dwc3_ep *dep, const struct dwc3_event_depevt *event)
static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3_ep *dep,
const struct dwc3_event_depevt *event)
{
struct dwc3 *dwc = dep->dwc;
unsigned status = 0;
int clean_busy;
if (event->status & DEPEVT_STATUS_BUSERR)
status = -ECONNRESET;
clean_busy = dwc3_gadget_ep_cleanup_completed_requests(dwc, dep, event,
clean_busy = dwc3_gadget_ep_cleanup_completed_requests(dep, event,
status);
if (clean_busy && (!dep->endpoint.desc ||
usb_endpoint_xfer_isoc(dep->endpoint.desc)))
@ -2464,15 +2462,15 @@ static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3 *dwc,
}
}
static void dwc3_gadget_endpoint_transfer_not_ready(struct dwc3 *dwc,
struct dwc3_ep *dep, const struct dwc3_event_depevt *event)
static void dwc3_gadget_endpoint_transfer_not_ready(struct dwc3_ep *dep,
const struct dwc3_event_depevt *event)
{
u32 cur_uf, mask;
mask = ~(dep->interval - 1);
cur_uf = event->parameters & mask;
__dwc3_gadget_start_isoc(dwc, dep, cur_uf);
__dwc3_gadget_start_isoc(dep, cur_uf);
}
static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
@ -2500,10 +2498,10 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
switch (event->endpoint_event) {
case DWC3_DEPEVT_XFERINPROGRESS:
dwc3_gadget_endpoint_transfer_in_progress(dwc, dep, event);
dwc3_gadget_endpoint_transfer_in_progress(dep, event);
break;
case DWC3_DEPEVT_XFERNOTREADY:
dwc3_gadget_endpoint_transfer_not_ready(dwc, dep, event);
dwc3_gadget_endpoint_transfer_not_ready(dep, event);
break;
case DWC3_DEPEVT_EPCMDCMPLT:
cmd = DEPEVT_PARAMETER_CMD(event->parameters);
@ -2559,15 +2557,13 @@ static void dwc3_reset_gadget(struct dwc3 *dwc)
}
}
static void dwc3_stop_active_transfer(struct dwc3 *dwc, u32 epnum, bool force)
static void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force)
{
struct dwc3_ep *dep;
struct dwc3 *dwc = dep->dwc;
struct dwc3_gadget_ep_cmd_params params;
u32 cmd;
int ret;
dep = dwc->eps[epnum];
if ((dep->flags & DWC3_EP_END_TRANSFER_PENDING) ||
!dep->resource_index)
return;