Added link status call to the device driver interface

tass-belgium · Jan 28, 2015 · 0a3b361 · 0a3b361
1 parent ca74557
commit 0a3b361
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diff --git a/include/pico_device.h b/include/pico_device.h
@@ -26,6 +26,7 @@ struct pico_device {
     struct pico_ethdev *eth; /* Null if non-ethernet */
     struct pico_queue *q_in;
     struct pico_queue *q_out;
+    int (*link_state)(struct pico_device *self);
     int (*send)(struct pico_device *self, void *buf, int len); /* Send function. Return 0 if busy */
     int (*poll)(struct pico_device *self, int loop_score);
     void (*destroy)(struct pico_device *self);
@@ -44,5 +45,6 @@ void pico_device_destroy(struct pico_device *dev);
 int pico_devices_loop(int loop_score, int direction);
 struct pico_device*pico_get_device(const char*name);
 int32_t pico_device_broadcast(struct pico_frame *f);
+int pico_device_link_state(struct pico_device *dev);
 
 #endif
diff --git a/stack/pico_device.c b/stack/pico_device.c
@@ -369,3 +369,10 @@ int32_t pico_device_broadcast(struct pico_frame *f)
     }
     return ret;
 }
+
+int pico_device_link_state(struct pico_device *dev)
+{
+    if (!dev->link_state)
+        return 1; /* Not supported, assuming link is always up */
+    return dev->link_state(dev);
+}