From 3726bf62d341a586ba74a1dfeb5608efee342ca1 Mon Sep 17 00:00:00 2001
From: Koen Zandberg <koen@bergzand.net>
Date: Wed, 27 Feb 2019 22:23:14 +0100
Subject: [PATCH] usbus_cdc_ecm: provide auto init integration

---
 sys/auto_init/auto_init.c              |  5 +++
 sys/auto_init/netif/auto_init_cdcecm.c | 59 ++++++++++++++++++++++++++
 sys/auto_init/usb/auto_init_usb.c      |  9 ++++
 3 files changed, 73 insertions(+)
 create mode 100644 sys/auto_init/netif/auto_init_cdcecm.c

diff --git a/sys/auto_init/auto_init.c b/sys/auto_init/auto_init.c
index 30a2106e7c..8a75f881c6 100644
--- a/sys/auto_init/auto_init.c
+++ b/sys/auto_init/auto_init.c
@@ -261,6 +261,11 @@ void auto_init(void)
     auto_init_kw2xrf();
 #endif
 
+#ifdef MODULE_USBUS_CDC_ECM
+    extern void auto_init_netdev_cdcecm(void);
+    auto_init_netdev_cdcecm();
+#endif
+
 #ifdef MODULE_NETDEV_TAP
     extern void auto_init_netdev_tap(void);
     auto_init_netdev_tap();
diff --git a/sys/auto_init/netif/auto_init_cdcecm.c b/sys/auto_init/netif/auto_init_cdcecm.c
new file mode 100644
index 0000000000..5bf9e2229c
--- /dev/null
+++ b/sys/auto_init/netif/auto_init_cdcecm.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2019 Koen Zandberg
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ *
+ */
+
+/**
+ * @ingroup sys_auto_init_gnrc_netif
+ * @{
+ *
+ * @file
+ * @brief   Auto initialization for USB CDC ECM module
+ *
+ * @author  Koen Zandberg <koen@bergzand.net>
+ */
+
+#ifdef MODULE_USBUS_CDC_ECM
+
+#include "log.h"
+#include "usb/usbus/cdc/ecm.h"
+#include "net/gnrc/netif/ethernet.h"
+
+/**
+ * @brief global cdc ecm object, declared in the usb auto init file
+ */
+extern usbus_cdcecm_device_t cdcecm;
+
+/**
+ * @brief   Define stack parameters for the MAC layer thread
+ * @{
+ */
+#define CDCECM_MAC_STACKSIZE (THREAD_STACKSIZE_DEFAULT)
+#ifndef CDCECM_MAC_PRIO
+#define CDCECM_MAC_PRIO      (GNRC_NETIF_PRIO)
+#endif
+
+/**
+ * @brief   Stacks for the MAC layer threads
+ */
+static char _netdev_eth_stack[CDCECM_MAC_STACKSIZE];
+extern void cdcecm_netdev_setup(usbus_cdcecm_device_t *cdcecm);
+
+void auto_init_netdev_cdcecm(void)
+{
+    LOG_DEBUG("[auto_init_netif] initializing cdc ecm #0\n");
+
+    cdcecm_netdev_setup(&cdcecm);
+    /* initialize netdev<->gnrc adapter state */
+    gnrc_netif_ethernet_create(_netdev_eth_stack, CDCECM_MAC_STACKSIZE,
+                               CDCECM_MAC_PRIO, "cdcecm", &cdcecm.netdev);
+}
+
+#else
+typedef int dont_be_pedantic;
+#endif /* MODULE_CDC_ECM */
+/** @} */
diff --git a/sys/auto_init/usb/auto_init_usb.c b/sys/auto_init/usb/auto_init_usb.c
index 5eb5d1edad..6d85d3622b 100644
--- a/sys/auto_init/usb/auto_init_usb.c
+++ b/sys/auto_init/usb/auto_init_usb.c
@@ -24,6 +24,11 @@
 
 #include "usb/usbus.h"
 
+#ifdef MODULE_USBUS_CDC_ECM
+#include "usb/usbus/cdc/ecm.h"
+usbus_cdcecm_device_t cdcecm;
+#endif
+
 static char _stack[USBUS_STACKSIZE];
 static usbus_t usbus;
 
@@ -36,6 +41,10 @@ void auto_init_usb(void)
     /* Initialize basic usbus struct, don't start the thread yet */
     usbus_init(&usbus, usbdev);
 
+    /* USBUS function handlers initialization */
+#ifdef MODULE_USBUS_CDC_ECM
+    usbus_cdcecm_init(&usbus, &cdcecm);
+#endif
 
     /* Finally initialize USBUS thread */
     usbus_create(_stack, USBUS_STACKSIZE, USBUS_PRIO, USBUS_TNAME, &usbus);