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path: root/drivers/usb/dwc3/ep0.c
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Diffstat (limited to 'drivers/usb/dwc3/ep0.c')
-rw-r--r--drivers/usb/dwc3/ep0.c98
1 files changed, 54 insertions, 44 deletions
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index c8df1dd967ef..25910e251c04 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -76,8 +76,7 @@ static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
u32 len, u32 type)
{
struct dwc3_gadget_ep_cmd_params params;
- struct dwc3_trb_hw *trb_hw;
- struct dwc3_trb trb;
+ struct dwc3_trb *trb;
struct dwc3_ep *dep;
int ret;
@@ -88,19 +87,17 @@ static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
return 0;
}
- trb_hw = dwc->ep0_trb;
- memset(&trb, 0, sizeof(trb));
+ trb = dwc->ep0_trb;
- trb.trbctl = type;
- trb.bplh = buf_dma;
- trb.length = len;
+ trb->bpl = lower_32_bits(buf_dma);
+ trb->bph = upper_32_bits(buf_dma);
+ trb->size = len;
+ trb->ctrl = type;
- trb.hwo = 1;
- trb.lst = 1;
- trb.ioc = 1;
- trb.isp_imi = 1;
-
- dwc3_trb_to_hw(&trb, trb_hw);
+ trb->ctrl |= (DWC3_TRB_CTRL_HWO
+ | DWC3_TRB_CTRL_LST
+ | DWC3_TRB_CTRL_IOC
+ | DWC3_TRB_CTRL_ISP_IMI);
memset(&params, 0, sizeof(params));
params.param0 = upper_32_bits(dwc->ep0_trb_addr);
@@ -302,7 +299,7 @@ static int dwc3_ep0_handle_status(struct dwc3 *dwc,
dep = dwc->eps[0];
dwc->ep0_usb_req.dep = dep;
dwc->ep0_usb_req.request.length = sizeof(*response_pkt);
- dwc->ep0_usb_req.request.dma = dwc->setup_buf_addr;
+ dwc->ep0_usb_req.request.buf = dwc->setup_buf;
dwc->ep0_usb_req.request.complete = dwc3_ep0_status_cmpl;
return __dwc3_gadget_ep0_queue(dep, &dwc->ep0_usb_req);
@@ -315,9 +312,7 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc,
u32 recip;
u32 wValue;
u32 wIndex;
- u32 reg;
int ret;
- u32 mode;
wValue = le16_to_cpu(ctrl->wValue);
wIndex = le16_to_cpu(ctrl->wIndex);
@@ -356,25 +351,8 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc,
if (!set)
return -EINVAL;
- mode = wIndex >> 8;
- reg = dwc3_readl(dwc->regs, DWC3_DCTL);
- reg &= ~DWC3_DCTL_TSTCTRL_MASK;
-
- switch (mode) {
- case TEST_J:
- case TEST_K:
- case TEST_SE0_NAK:
- case TEST_PACKET:
- case TEST_FORCE_EN:
- reg |= mode << 1;
- break;
- default:
- return -EINVAL;
- }
- dwc3_writel(dwc->regs, DWC3_DCTL, reg);
- break;
- default:
- return -EINVAL;
+ dwc->test_mode_nr = wIndex >> 8;
+ dwc->test_mode = true;
}
break;
@@ -396,7 +374,7 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc,
case USB_RECIP_ENDPOINT:
switch (wValue) {
case USB_ENDPOINT_HALT:
- dep = dwc3_wIndex_to_dep(dwc, wIndex);
+ dep = dwc3_wIndex_to_dep(dwc, wIndex);
if (!dep)
return -EINVAL;
ret = __dwc3_gadget_ep_set_halt(dep, set);
@@ -470,8 +448,11 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
case DWC3_ADDRESS_STATE:
ret = dwc3_ep0_delegate_req(dwc, ctrl);
/* if the cfg matches and the cfg is non zero */
- if (!ret && cfg)
+ if (cfg && (!ret || (ret == USB_GADGET_DELAYED_STATUS))) {
dwc->dev_state = DWC3_CONFIGURED_STATE;
+ dwc->resize_fifos = true;
+ dev_dbg(dwc->dev, "resize fifos flag SET\n");
+ }
break;
case DWC3_CONFIGURED_STATE:
@@ -560,9 +541,10 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
{
struct dwc3_request *r = NULL;
struct usb_request *ur;
- struct dwc3_trb trb;
+ struct dwc3_trb *trb;
struct dwc3_ep *ep0;
u32 transferred;
+ u32 length;
u8 epnum;
epnum = event->endpoint_number;
@@ -573,16 +555,16 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
r = next_request(&ep0->request_list);
ur = &r->request;
- dwc3_trb_to_nat(dwc->ep0_trb, &trb);
+ trb = dwc->ep0_trb;
+ length = trb->size & DWC3_TRB_SIZE_MASK;
if (dwc->ep0_bounced) {
-
transferred = min_t(u32, ur->length,
- ep0->endpoint.maxpacket - trb.length);
+ ep0->endpoint.maxpacket - length);
memcpy(ur->buf, dwc->ep0_bounce, transferred);
dwc->ep0_bounced = false;
} else {
- transferred = ur->length - trb.length;
+ transferred = ur->length - length;
ur->actual += transferred;
}
@@ -614,6 +596,17 @@ static void dwc3_ep0_complete_req(struct dwc3 *dwc,
dwc3_gadget_giveback(dep, r, 0);
}
+ if (dwc->test_mode) {
+ int ret;
+
+ ret = dwc3_gadget_set_test_mode(dwc, dwc->test_mode_nr);
+ if (ret < 0) {
+ dev_dbg(dwc->dev, "Invalid Test #%d\n",
+ dwc->test_mode_nr);
+ dwc3_ep0_stall_and_restart(dwc);
+ }
+ }
+
dwc->ep0state = EP0_SETUP_PHASE;
dwc3_ep0_out_start(dwc);
}
@@ -624,6 +617,7 @@ static void dwc3_ep0_xfer_complete(struct dwc3 *dwc,
struct dwc3_ep *dep = dwc->eps[event->endpoint_number];
dep->flags &= ~DWC3_EP_BUSY;
+ dep->res_trans_idx = 0;
dwc->setup_packet_pending = false;
switch (dwc->ep0state) {
@@ -679,7 +673,12 @@ static void dwc3_ep0_do_control_data(struct dwc3 *dwc,
DWC3_TRBCTL_CONTROL_DATA);
} else if ((req->request.length % dep->endpoint.maxpacket)
&& (event->endpoint_number == 0)) {
- dwc3_map_buffer_to_dma(req);
+ ret = usb_gadget_map_request(&dwc->gadget, &req->request,
+ event->endpoint_number);
+ if (ret) {
+ dev_dbg(dwc->dev, "failed to map request\n");
+ return;
+ }
WARN_ON(req->request.length > dep->endpoint.maxpacket);
@@ -694,7 +693,12 @@ static void dwc3_ep0_do_control_data(struct dwc3 *dwc,
dwc->ep0_bounce_addr, dep->endpoint.maxpacket,
DWC3_TRBCTL_CONTROL_DATA);
} else {
- dwc3_map_buffer_to_dma(req);
+ ret = usb_gadget_map_request(&dwc->gadget, &req->request,
+ event->endpoint_number);
+ if (ret) {
+ dev_dbg(dwc->dev, "failed to map request\n");
+ return;
+ }
ret = dwc3_ep0_start_trans(dwc, event->endpoint_number,
req->request.dma, req->request.length,
@@ -720,6 +724,12 @@ static void dwc3_ep0_do_control_status(struct dwc3 *dwc, u32 epnum)
{
struct dwc3_ep *dep = dwc->eps[epnum];
+ if (dwc->resize_fifos) {
+ dev_dbg(dwc->dev, "starting to resize fifos\n");
+ dwc3_gadget_resize_tx_fifos(dwc);
+ dwc->resize_fifos = 0;
+ }
+
WARN_ON(dwc3_ep0_start_control_status(dep));
}
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