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path: root/drivers/usb/dwc3/gadget.c
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Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
-rw-r--r--drivers/usb/dwc3/gadget.c82
1 files changed, 43 insertions, 39 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 8f65ab3a3b92..a03a485205c7 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -139,7 +139,8 @@ int dwc3_gadget_set_link_state(struct dwc3 *dwc, enum dwc3_link_state state)
udelay(5);
}
- dev_vdbg(dwc->dev, "link state change request timed out\n");
+ dwc3_trace(trace_dwc3_gadget,
+ "link state change request timed out");
return -ETIMEDOUT;
}
@@ -219,7 +220,7 @@ int dwc3_gadget_resize_tx_fifos(struct dwc3 *dwc)
fifo_size |= (last_fifo_depth << 16);
- dev_vdbg(dwc->dev, "%s: Fifo Addr %04x Size %d\n",
+ dwc3_trace(trace_dwc3_gadget, "%s: Fifo Addr %04x Size %d",
dep->name, last_fifo_depth, fifo_size & 0xffff);
dwc3_writel(dwc->regs, DWC3_GTXFIFOSIZ(num), fifo_size);
@@ -287,7 +288,8 @@ int dwc3_send_gadget_generic_command(struct dwc3 *dwc, unsigned cmd, u32 param)
do {
reg = dwc3_readl(dwc->regs, DWC3_DGCMD);
if (!(reg & DWC3_DGCMD_CMDACT)) {
- dev_vdbg(dwc->dev, "Command Complete --> %d\n",
+ dwc3_trace(trace_dwc3_gadget,
+ "Command Complete --> %d",
DWC3_DGCMD_STATUS(reg));
return 0;
}
@@ -297,8 +299,11 @@ int dwc3_send_gadget_generic_command(struct dwc3 *dwc, unsigned cmd, u32 param)
* interrupt context.
*/
timeout--;
- if (!timeout)
+ if (!timeout) {
+ dwc3_trace(trace_dwc3_gadget,
+ "Command Timed Out");
return -ETIMEDOUT;
+ }
udelay(1);
} while (1);
}
@@ -320,7 +325,8 @@ int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
do {
reg = dwc3_readl(dwc->regs, DWC3_DEPCMD(ep));
if (!(reg & DWC3_DEPCMD_CMDACT)) {
- dev_vdbg(dwc->dev, "Command Complete --> %d\n",
+ dwc3_trace(trace_dwc3_gadget,
+ "Command Complete --> %d",
DWC3_DEPCMD_STATUS(reg));
return 0;
}
@@ -330,8 +336,11 @@ int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
* interrupt context.
*/
timeout--;
- if (!timeout)
+ if (!timeout) {
+ dwc3_trace(trace_dwc3_gadget,
+ "Command Timed Out");
return -ETIMEDOUT;
+ }
udelay(1);
} while (1);
@@ -352,9 +361,6 @@ static int dwc3_alloc_trb_pool(struct dwc3_ep *dep)
if (dep->trb_pool)
return 0;
- if (dep->number == 0 || dep->number == 1)
- return 0;
-
dep->trb_pool = dma_alloc_coherent(dwc->dev,
sizeof(struct dwc3_trb) * DWC3_TRB_NUM,
&dep->trb_pool_dma, GFP_KERNEL);
@@ -492,7 +498,7 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
u32 reg;
int ret;
- dev_vdbg(dwc->dev, "Enabling %s\n", dep->name);
+ dwc3_trace(trace_dwc3_gadget, "Enabling %s", dep->name);
if (!(dep->flags & DWC3_EP_ENABLED)) {
ret = dwc3_gadget_start_config(dwc, dep);
@@ -729,10 +735,9 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep,
struct dwc3_request *req, dma_addr_t dma,
unsigned length, unsigned last, unsigned chain, unsigned node)
{
- struct dwc3 *dwc = dep->dwc;
struct dwc3_trb *trb;
- dev_vdbg(dwc->dev, "%s: req %p dma %08llx length %d%s%s\n",
+ dwc3_trace(trace_dwc3_gadget, "%s: req %p dma %08llx length %d%s%s",
dep->name, req, (unsigned long long) dma,
length, last ? " last" : "",
chain ? " chain" : "");
@@ -934,7 +939,7 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param,
u32 cmd;
if (start_new && (dep->flags & DWC3_EP_BUSY)) {
- dev_vdbg(dwc->dev, "%s: endpoint busy\n", dep->name);
+ dwc3_trace(trace_dwc3_gadget, "%s: endpoint busy", dep->name);
return -EBUSY;
}
dep->flags &= ~DWC3_EP_PENDING_REQUEST;
@@ -1005,8 +1010,9 @@ static void __dwc3_gadget_start_isoc(struct dwc3 *dwc,
u32 uf;
if (list_empty(&dep->request_list)) {
- dev_vdbg(dwc->dev, "ISOC ep %s run out for requests.\n",
- dep->name);
+ dwc3_trace(trace_dwc3_gadget,
+ "ISOC ep %s run out for requests",
+ dep->name);
dep->flags |= DWC3_EP_PENDING_REQUEST;
return;
}
@@ -1113,15 +1119,10 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
* handled.
*/
if (dep->stream_capable) {
- int ret;
-
ret = __dwc3_gadget_kick_transfer(dep, 0, true);
- if (ret && ret != -EBUSY) {
- struct dwc3 *dwc = dep->dwc;
-
+ if (ret && ret != -EBUSY)
dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
dep->name);
- }
}
return 0;
@@ -1152,8 +1153,6 @@ static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
goto out;
}
- dev_vdbg(dwc->dev, "queing request %p to %s length %d\n",
- request, ep->name, request->length);
trace_dwc3_ep_queue(req);
ret = __dwc3_gadget_ep_queue(dep, req);
@@ -1416,7 +1415,7 @@ static int dwc3_gadget_set_selfpowered(struct usb_gadget *g,
unsigned long flags;
spin_lock_irqsave(&dwc->lock, flags);
- dwc->is_selfpowered = !!is_selfpowered;
+ g->is_selfpowered = !!is_selfpowered;
spin_unlock_irqrestore(&dwc->lock, flags);
return 0;
@@ -1468,7 +1467,7 @@ static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on, int suspend)
udelay(1);
} while (1);
- dev_vdbg(dwc->dev, "gadget %s data soft-%s\n",
+ dwc3_trace(trace_dwc3_gadget, "gadget %s data soft-%s",
dwc->gadget_driver
? dwc->gadget_driver->function : "no-function",
is_on ? "connect" : "disconnect");
@@ -1688,7 +1687,7 @@ static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc,
dep->endpoint.name = dep->name;
- dev_vdbg(dwc->dev, "initializing %s\n", dep->name);
+ dwc3_trace(trace_dwc3_gadget, "initializing %s", dep->name);
if (epnum == 0 || epnum == 1) {
usb_ep_set_maxpacket_limit(&dep->endpoint, 512);
@@ -1725,13 +1724,15 @@ static int dwc3_gadget_init_endpoints(struct dwc3 *dwc)
ret = dwc3_gadget_init_hw_endpoints(dwc, dwc->num_out_eps, 0);
if (ret < 0) {
- dev_vdbg(dwc->dev, "failed to allocate OUT endpoints\n");
+ dwc3_trace(trace_dwc3_gadget,
+ "failed to allocate OUT endpoints");
return ret;
}
ret = dwc3_gadget_init_hw_endpoints(dwc, dwc->num_in_eps, 1);
if (ret < 0) {
- dev_vdbg(dwc->dev, "failed to allocate IN endpoints\n");
+ dwc3_trace(trace_dwc3_gadget,
+ "failed to allocate IN endpoints");
return ret;
}
@@ -1977,7 +1978,7 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
} else {
int ret;
- dev_vdbg(dwc->dev, "%s: reason %s\n",
+ dwc3_trace(trace_dwc3_gadget, "%s: reason %s",
dep->name, event->status &
DEPEVT_STATUS_TRANSFER_ACTIVE
? "Transfer Active"
@@ -2001,7 +2002,8 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
switch (event->status) {
case DEPEVT_STREAMEVT_FOUND:
- dev_vdbg(dwc->dev, "Stream %d found and started\n",
+ dwc3_trace(trace_dwc3_gadget,
+ "Stream %d found and started",
event->parameters);
break;
@@ -2015,7 +2017,7 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
dev_dbg(dwc->dev, "%s FIFO Overrun\n", dep->name);
break;
case DWC3_DEPEVT_EPCMDCMPLT:
- dev_vdbg(dwc->dev, "Endpoint Command Complete\n");
+ dwc3_trace(trace_dwc3_gadget, "Endpoint Command Complete");
break;
}
}
@@ -2043,6 +2045,7 @@ static void dwc3_resume_gadget(struct dwc3 *dwc)
if (dwc->gadget_driver && dwc->gadget_driver->resume) {
spin_unlock(&dwc->lock);
dwc->gadget_driver->resume(&dwc->gadget);
+ spin_lock(&dwc->lock);
}
}
@@ -2079,7 +2082,7 @@ static void dwc3_stop_active_transfer(struct dwc3 *dwc, u32 epnum, bool force)
* We have discussed this with the IP Provider and it was
* suggested to giveback all requests here, but give HW some
* extra time to synchronize with the interconnect. We're using
- * an arbitraty 100us delay for that.
+ * an arbitrary 100us delay for that.
*
* Note also that a similar handling was tested by Synopsys
* (thanks a lot Paul) and nothing bad has come out of it.
@@ -2389,7 +2392,8 @@ static void dwc3_gadget_linksts_change_interrupt(struct dwc3 *dwc,
(pwropt != DWC3_GHWPARAMS1_EN_PWROPT_HIB)) {
if ((dwc->link_state == DWC3_LINK_STATE_U3) &&
(next == DWC3_LINK_STATE_RESUME)) {
- dev_vdbg(dwc->dev, "ignoring transition U3 -> Resume\n");
+ dwc3_trace(trace_dwc3_gadget,
+ "ignoring transition U3 -> Resume");
return;
}
}
@@ -2511,22 +2515,22 @@ static void dwc3_gadget_interrupt(struct dwc3 *dwc,
dwc3_gadget_linksts_change_interrupt(dwc, event->event_info);
break;
case DWC3_DEVICE_EVENT_EOPF:
- dev_vdbg(dwc->dev, "End of Periodic Frame\n");
+ dwc3_trace(trace_dwc3_gadget, "End of Periodic Frame");
break;
case DWC3_DEVICE_EVENT_SOF:
- dev_vdbg(dwc->dev, "Start of Periodic Frame\n");
+ dwc3_trace(trace_dwc3_gadget, "Start of Periodic Frame");
break;
case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
- dev_vdbg(dwc->dev, "Erratic Error\n");
+ dwc3_trace(trace_dwc3_gadget, "Erratic Error");
break;
case DWC3_DEVICE_EVENT_CMD_CMPL:
- dev_vdbg(dwc->dev, "Command Complete\n");
+ dwc3_trace(trace_dwc3_gadget, "Command Complete");
break;
case DWC3_DEVICE_EVENT_OVERFLOW:
- dev_vdbg(dwc->dev, "Overflow\n");
+ dwc3_trace(trace_dwc3_gadget, "Overflow");
break;
default:
- dev_dbg(dwc->dev, "UNKNOWN IRQ %d\n", event->type);
+ dev_WARN(dwc->dev, "UNKNOWN IRQ %d\n", event->type);
}
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.