support can and add test case for xidatong-riscv64 on nuttx

Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/Kconfig

@@ -671,6 +671,10 @@ config NSH_DISABLE_MUSL_TEST
 	bool "Disable the musl test."
 	default n
 
+config NSH_NSH_DISABLE_CAN_TEST
+	bool "Disable the can test."
+	default n
+
 endmenu
 
 if MMCSD

Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh.h

@@ -1591,6 +1591,9 @@ int nsh_foreach_var(FAR struct nsh_vtbl_s *vtbl, nsh_foreach_var_t cb,
   int cmd_musl(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
 #endif
 
+#if defined(CONFIG_BSP_USING_CAN) && !defined(CONFIG_NSH_DISABLE_CAN_TEST)
+  int cmd_cantest(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
+#endif
 #if defined(__cplusplus)
 }
 #endif

Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh_Applicationscmd.c

@@ -509,4 +509,14 @@ int cmd_musl(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
     Testmusl();
     return OK;
 }
+#endif
+
+#if defined(CONFIG_BSP_USING_CAN) && !defined(CONFIG_NSH_DISABLE_CAN_TEST)
+extern void can_test(void);
+int cmd_cantest(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
+{
+    nsh_output(vtbl, "Hello, world!\n");
+    can_test();
+    return OK;
+}
 #endif

Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh_command.c

@@ -736,6 +736,10 @@ static const struct cmdmap_s g_cmdmap[] =
   { "testmusl",       cmd_musl,       1, 1, "[test musl function.]" },
 #endif
 
+#if defined(CONFIG_BSP_USING_CAN) && !defined(CONFIG_NSH_DISABLE_CAN_TEST)
+  { "cantest",       cmd_cantest,       1, 1, "[test can function.]" },
+#endif
+
   { NULL,       NULL,         1, 1, NULL }
 };