Modify xhci functions for USB core

Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/usb_hc_xhci.c

@@ -791,7 +791,64 @@ int xhci_usbh_ep_pipe_reconfigure(struct usbh_bus *usb, usbh_pipe_t pipe, uint8_
 
 
 int xhci_usbh_pipe_alloc(usbh_pipe_t *pipe, const struct usbh_endpoint_cfg *ep_cfg){
-    return 0;
+    int rc = 0;
+    int slot_id = 0;
+    struct xhci_host *xhci = xhci_get_inst_of_port(ep_cfg->hport);
+    struct usbh_hubport *hport = ep_cfg->hport;
+    struct xhci_endpoint *ppipe = usb_align(XHCI_RING_SIZE, sizeof(struct xhci_endpoint));
+    struct xhci_slot *slot;
+
+    if (NULL == ppipe) {
+        return -ENOMEM;
+    }
+
+    memset(ppipe, 0, sizeof(struct xhci_endpoint));
+
+    ppipe->waitsem = usb_osal_sem_create(0);
+    ppipe->waiter = false;
+    ppipe->urb = NULL;
+    ppipe->hport = hport;
+
+    ppipe->address = ep_cfg->ep_addr;
+    ppipe->mtu = ep_cfg->ep_mps;
+    ppipe->interval = ep_cfg->ep_interval;
+    ppipe->ep_type = ep_cfg->ep_type;
+    ppipe->burst = 0U;
+
+    if (ppipe->address == 0) { /* if try to allocate ctrl ep, open device first */
+        USB_LOG_DBG("allocate device for port-%d \r\n", hport->port);
+        rc = xhci_device_open(xhci, ppipe, &slot_id);
+        if (rc) {
+            goto failed;
+        }
+
+        slot = xhci->slot[slot_id];
+        USB_ASSERT(slot);
+        rc = xhci_ctrl_endpoint_open(xhci, slot, ppipe);
+        if (rc) {
+            goto failed;
+        }
+
+        rc = xhci_device_address(xhci, slot, ppipe);
+        if (rc) {
+            goto failed;
+        }
+    } else {
+        slot_id = hport->dev_addr;
+        slot = xhci->slot[slot_id];
+
+        rc = xhci_work_endpoint_open(xhci, slot, ppipe);
+        if (rc) {
+            goto failed;
+        }
+    }
+
+    *pipe = (usbh_pipe_t)ppipe;
+    return rc;
+failed:
+    usb_free(ppipe);
+    *pipe = NULL;
+    return rc;
 }