Callback to signal link state changes from minidriver to
'subminidrivers'.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@xxxxxxxx>
---
drivers/net/usb/rndis_host.c | 24 ++++++++++++++++++++----
drivers/net/usb/usbnet.h | 4 ++++
2 files changed, 24 insertions(+), 4 deletions(-)
diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index 0813903..800c9d0 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -148,10 +148,26 @@ int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf)
request_id, xid);
/* then likely retry */
} else switch (buf->msg_type) {
- case RNDIS_MSG_INDICATE: { /* fault */
- // struct rndis_indicate *msg = (void *)buf;
- dev_info(&info->control->dev,
- "rndis fault indication\n");
+ case RNDIS_MSG_INDICATE: { /* fault/event */
+ struct rndis_indicate *msg = (void *)buf;
+ int state = 0;
+
+ switch (msg->status) {
+ case RNDIS_STATUS_MEDIA_CONNECT:
+ state = 1;
+ case RNDIS_STATUS_MEDIA_DISCONNECT:
+ dev_info(&info->control->dev,
+ "rndis media %sconnect\n",
+ !state?"dis":"");
+ if (dev->driver_info->link_change)
+ dev->driver_info->link_change(
+ dev, state);
+ break;
+ default:
+ dev_info(&info->control->dev,
+ "rndis indication: 0x%08x\n",
+ le32_to_cpu(msg->status));
+ }
}
break;
case RNDIS_MSG_KEEPALIVE: { /* ping */
diff --git a/drivers/net/usb/usbnet.h b/drivers/net/usb/usbnet.h
index 25b63d3..e0501da 100644
--- a/drivers/net/usb/usbnet.h
+++ b/drivers/net/usb/usbnet.h
@@ -121,6 +121,10 @@ struct driver_info {
* right after minidriver have initialized hardware. */
int (*early_init)(struct usbnet *dev);
+ /* called by minidriver when link state changes, state: 0=disconnect,
+ * 1=connect */
+ void (*link_change)(struct usbnet *dev, int state);
+
/* for new devices, use the descriptor-reading code instead */
int in; /* rx endpoint */
int out; /* tx endpoint */
-
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