feat(port): implement usbd_ep_is_stalled api

core/usbd_core.c

@@ -99,9 +99,9 @@ static bool is_device_configured(uint8_t busid)
 static bool usbd_set_endpoint(uint8_t busid, const struct usb_endpoint_descriptor *ep)
 {
     USB_LOG_DBG("Open ep:0x%02x type:%u mps:%u\r\n",
-                 ep->bEndpointAddress,
-                 USB_GET_ENDPOINT_TYPE(ep->bmAttributes),
-                 USB_GET_MAXPACKETSIZE(ep->wMaxPacketSize));
+                ep->bEndpointAddress,
+                USB_GET_ENDPOINT_TYPE(ep->bmAttributes),
+                USB_GET_MAXPACKETSIZE(ep->wMaxPacketSize));
 
     if (ep->bEndpointAddress & 0x80) {
         g_usbd_core[busid].tx_msg[ep->bEndpointAddress & 0x7f].ep_mps = USB_GET_MAXPACKETSIZE(ep->wMaxPacketSize);
@@ -126,8 +126,8 @@ static bool usbd_set_endpoint(uint8_t busid, const struct usb_endpoint_descripto
 static bool usbd_reset_endpoint(uint8_t busid, const struct usb_endpoint_descriptor *ep)
 {
     USB_LOG_DBG("Close ep:0x%02x type:%u\r\n",
-                 ep->bEndpointAddress,
-                 USB_GET_ENDPOINT_TYPE(ep->bmAttributes));
+                ep->bEndpointAddress,
+                USB_GET_ENDPOINT_TYPE(ep->bmAttributes));
 
     return usbd_ep_close(busid, ep->bEndpointAddress) == 0 ? true : false;
 }
@@ -556,14 +556,16 @@ static bool usbd_std_device_req_handler(uint8_t busid, struct usb_setup_packet *
             break;
 
         case USB_REQUEST_GET_CONFIGURATION:
-            *data = (uint8_t *)&g_usbd_core[busid].configuration;
+            (*data)[0] = g_usbd_core[busid].configuration;
             *len = 1;
             break;
 
         case USB_REQUEST_SET_CONFIGURATION:
             value &= 0xFF;
 
-            if (!usbd_set_configuration(busid, value, 0)) {
+            if (value == 0) {
+                g_usbd_core[busid].configuration = 0;
+            } else if (!usbd_set_configuration(busid, value, 0)) {
                 ret = false;
             } else {
                 g_usbd_core[busid].configuration = value;
@@ -663,6 +665,7 @@ static bool usbd_std_endpoint_req_handler(uint8_t busid, struct usb_setup_packet
 {
     uint8_t ep = (uint8_t)setup->wIndex;
     bool ret = true;
+    uint8_t stalled;
 
     /* Only when device is configured, then endpoint requests can be valid. */
     if (!is_device_configured(busid)) {
@@ -671,7 +674,12 @@ static bool usbd_std_endpoint_req_handler(uint8_t busid, struct usb_setup_packet
 
     switch (setup->bRequest) {
         case USB_REQUEST_GET_STATUS:
-            (*data)[0] = 0x00;
+            usbd_ep_is_stalled(busid, ep, &stalled);
+            if (stalled) {
+                (*data)[0] = 0x01;
+            } else {
+                (*data)[0] = 0x00;
+            }
             (*data)[1] = 0x00;
             *len = 2;
             break;

port/bouffalolab/usb_dc_bl.c

@@ -822,6 +822,29 @@ int usbd_ep_clear_stall(uint8_t busid, const uint8_t ep)
 
 int usbd_ep_is_stalled(uint8_t busid, const uint8_t ep, uint8_t *stalled)
 {
+    uint32_t regval;
+
+    uint8_t ep_idx = USB_EP_GET_IDX(ep);
+
+    if (ep_idx == 0) {
+    } else {
+        if (USB_EP_DIR_IS_OUT(ep)) {
+            regval = getreg32(BFLB_USB_BASE + USB_DEV_OUTMPS1_OFFSET + (ep_idx - 1) * 4);
+            if (regval & USB_STL_OEP1) {
+                *stalled = 1;
+            } else {
+                *stalled = 0;
+            }
+        } else {
+            regval = getreg32(BFLB_USB_BASE + USB_DEV_INMPS1_OFFSET + (ep_idx - 1) * 4);
+            if (regval & USB_STL_IEP1) {
+                *stalled = 1;
+            } else {
+                *stalled = 0;
+            }
+        }
+    }
+
     return 0;
 }
 

port/dwc2/usb_dc_dwc2.c

@@ -834,8 +834,20 @@ int usbd_ep_clear_stall(uint8_t busid, const uint8_t ep)
 
 int usbd_ep_is_stalled(uint8_t busid, const uint8_t ep, uint8_t *stalled)
 {
+    uint8_t ep_idx = USB_EP_GET_IDX(ep);
+
     if (USB_EP_DIR_IS_OUT(ep)) {
+        if(USB_OTG_OUTEP(ep_idx)->DOEPCTL & USB_OTG_DOEPCTL_STALL) {
+            *stalled = 1;
+        } else {
+            *stalled = 0;
+        }
     } else {
+        if(USB_OTG_INEP(ep_idx)->DIEPCTL & USB_OTG_DIEPCTL_STALL) {
+            *stalled = 1;
+        } else {
+            *stalled = 0;
+        }
     }
     return 0;
 }

port/fsdev/usb_dc_fsdev.c

@@ -255,8 +255,20 @@ int usbd_ep_clear_stall(uint8_t busid, const uint8_t ep)
 
 int usbd_ep_is_stalled(uint8_t busid, const uint8_t ep, uint8_t *stalled)
 {
+    uint8_t ep_idx = USB_EP_GET_IDX(ep);
+
     if (USB_EP_DIR_IS_OUT(ep)) {
+        if (PCD_GET_EP_RX_STATUS(USB, ep_idx) & USB_EP_RX_STALL) {
+            *stalled = 1;
+        } else {
+            *stalled = 0;
+        }
     } else {
+        if (PCD_GET_EP_TX_STATUS(USB, ep_idx) & USB_EP_TX_STALL) {
+            *stalled = 1;
+        } else {
+            *stalled = 0;
+        }
     }
     return 0;
 }

port/musb/usb_dc_musb.c

@@ -501,6 +501,26 @@ int usbd_ep_clear_stall(uint8_t busid, const uint8_t ep)
 
 int usbd_ep_is_stalled(uint8_t busid, const uint8_t ep, uint8_t *stalled)
 {
+    uint8_t ep_idx = USB_EP_GET_IDX(ep);
+    uint8_t old_ep_idx;
+
+    old_ep_idx = musb_get_active_ep();
+    musb_set_active_ep(ep_idx);
+
+    if (USB_EP_DIR_IS_OUT(ep)) {
+        if(HWREGB(USB_BASE + MUSB_IND_RXCSRL_OFFSET) & USB_RXCSRL1_STALLED) {
+            *stalled = 1;
+        } else {
+            *stalled = 0;
+        }
+    } else {
+        if(HWREGB(USB_BASE + MUSB_IND_TXCSRL_OFFSET) & USB_TXCSRL1_STALLED) {
+            *stalled = 1;
+        } else {
+            *stalled = 0;
+        }
+    }
+    musb_set_active_ep(old_ep_idx);
     return 0;
 }