usb_cdcmbim: add mbim device driver

./build.sh sim:usbdev -j12
sudo gdb nuttx/nuttx -ex "source nuttx/tools/gdb/__init__.py"

below command to create mbim NIC on host
nsh> conn 3

NuttX's MBIM device implementation adds an additional MBIM network
card to the NuttX system, which can debug the data communication with
the host, but this network card is unnecessary and needs to be removed
when the business actually uses this driver, And the cdcncm_receive
method needs to be re-implemented.

Signed-off-by: zhanghongyu <[email protected]>

Author: zhhyu7

boards/sim/sim/sim/configs/usbdev/defconfig

@@ -57,6 +57,7 @@ CONFIG_NETUTILS_TELNETD=y
 CONFIG_NET_BINDTODEVICE=y
 CONFIG_NET_BROADCAST=y
 CONFIG_NET_CDCECM=y
+CONFIG_NET_CDCMBIM=y
 CONFIG_NET_CDCNCM=y
 CONFIG_NET_ETH_PKTSIZE=1518
 CONFIG_NET_ICMP_SOCKET=y
@@ -71,6 +72,7 @@ CONFIG_NET_IPFORWARD_NSTRUCT=100
 CONFIG_NET_IPv6=y
 CONFIG_NET_MAX_RECV_BUFSIZE=65535
 CONFIG_NET_MAX_SEND_BUFSIZE=65535
+CONFIG_NET_MBIM=y
 CONFIG_NET_NAT=y
 CONFIG_NET_RECV_BUFSIZE=16384
 CONFIG_NET_SEND_BUFSIZE=16384

boards/sim/sim/sim/src/sim_composite.c

@@ -258,6 +258,53 @@ static void *board_composite2_connect(int port)
   return composite_initialize(composite_getdevdescs(), dev, dev_idx);
 }
 
+/****************************************************************************
+ * Name:  board_composite3_connect
+ *
+ * Description:
+ *   Connect the USB composite device on the specified USB device port for
+ *   configuration 3.
+ *
+ * Input Parameters:
+ *   port     - The USB device port.
+ *
+ * Returned Value:
+ *   A non-NULL handle value is returned on success.  NULL is returned on
+ *   any failure.
+ *
+ ****************************************************************************/
+
+static void *board_composite3_connect(int port)
+{
+  struct composite_devdesc_s dev[1];
+  int dev_idx = 0;
+
+#ifdef CONFIG_NET_CDCMBIM
+  /* Configure the CDC/NCM device */
+
+  cdcmbim_get_composite_devdesc(&dev[dev_idx]);
+
+  /* Interfaces */
+
+  dev[dev_idx].devinfo.ifnobase = 0;
+  dev[dev_idx].minor = 0;
+
+  /* Strings */
+
+  dev[dev_idx].devinfo.strbase = COMPOSITE_NSTRIDS - 1;
+
+  /* Endpoints */
+
+  dev[dev_idx].devinfo.epno[CDCNCM_EP_INTIN_IDX] = 5;
+  dev[dev_idx].devinfo.epno[CDCNCM_EP_BULKIN_IDX] = 6;
+  dev[dev_idx].devinfo.epno[CDCNCM_EP_BULKOUT_IDX] = 7;
+
+  dev_idx += 1;
+#endif
+
+  return composite_initialize(composite_getdevdescs(), dev, dev_idx);
+}
+
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -303,10 +350,14 @@ void *board_composite_connect(int port, int configid)
     {
       return board_composite1_connect(port);
     }
-  else
+  else if (configid == 2)
     {
       return board_composite2_connect(port);
     }
+  else
+    {
+      return board_composite3_connect(port);
+    }
 }
 
 #endif /* CONFIG_BOARDCTL_USBDEVCTRL && CONFIG_USBDEV_COMPOSITE */

drivers/usbdev/Kconfig

@@ -1248,6 +1248,16 @@ menuconfig NET_CDCNCM
 
 if NET_CDCNCM
 
+config NET_CDCMBIM
+	bool "CDC-MBIM Ethernet-over-USB"
+	default n
+	---help---
+		This option may require CONFIG_NETDEV_LATEINIT=y, otherwise the
+		power-up initialization may call the non-existent xxx_netinitialize().
+		This option is not automatically selected because it may be that
+		you have an additional network device that requires the early
+		xxx_netinitialize() call.
+
 menuconfig CDCNCM_COMPOSITE
 	bool "CDC/NCM composite support"
 	default n
@@ -1385,9 +1395,17 @@ config CDCNCM_VENDORSTR
 	default "NuttX"
 
 config CDCNCM_PRODUCTSTR
-	string "Product string"
+	string "CDCNCM Product string"
 	default "CDC/NCM Ethernet"
 
+if NET_CDCMBIM
+
+config CDCMBIM_PRODUCTSTR
+	string "CDCMBIM Product string"
+	default "CDC/MBIM Ethernet"
+
+endif # NET_CDCMBIM
+
 endif # !CDCNCM_COMPOSITE
 
 config CDCNCM_QUOTA_TX