usbdev: support usb adb fastboot

Enable CONFIG_USBFASTBOOT to support fastboot driver.

Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>

drivers/usbdev/Kconfig

@@ -596,6 +596,12 @@ menuconfig USBADB
 
 if USBADB
 
+config USBFASTBOOT
+	bool "USB Android Debug Bridge (FASTBOOT) support"
+	default n
+	---help---
+		Enables USB Android Debug Bridge (FASTBOOT) support
+
 menuconfig USBADB_COMPOSITE
 	bool "USBADB composite support"
 	default n

drivers/usbdev/adb.c

@@ -48,7 +48,11 @@
 
 /* FIXME use minor for char device npath */
 
-#define USBADB_CHARDEV_PATH        "/dev/adb0"
+#ifdef CONFIG_USBFASTBOOT
+#  define USBADB_CHARDEV_PATH      "/dev/fastboot"
+#else
+#  define USBADB_CHARDEV_PATH      "/dev/adb0"
+#endif
 
 /* USB Controller */
 
@@ -98,6 +102,12 @@
 
 #define USBADB_NCONFIGS            (1)
 
+#ifdef CONFIG_USBFASTBOOT
+#  define USBADB_INTERFACEPROTOCOL (3)
+#else
+#  define USBADB_INTERFACEPROTOCOL (1)
+#endif
+
 /****************************************************************************
  * Private Data
  ****************************************************************************/
@@ -209,7 +219,7 @@ static const struct usb_ifdesc_s g_adb_ifdesc =
   .neps     = 2,
   .classid  = USB_CLASS_VENDOR_SPEC,
   .subclass = 0x42,
-  .protocol = 0x01,
+  .protocol = USBADB_INTERFACEPROTOCOL,
   .iif      = USBADB_INTERFACESTRID
 };