diff options
Diffstat (limited to 'drivers/net/usb/rndis_host.c')
| -rw-r--r-- | drivers/net/usb/rndis_host.c | 47 |
1 files changed, 43 insertions, 4 deletions
diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c index 247f58cb0f84..4e70dec30e5a 100644 --- a/drivers/net/usb/rndis_host.c +++ b/drivers/net/usb/rndis_host.c @@ -418,10 +418,7 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags) goto halt_fail_and_release; } - if (bp[0] & 0x02) - eth_hw_addr_random(net); - else - eth_hw_addr_set(net, bp); + eth_hw_addr_set(net, bp); /* set a nonzero filter to enable data transfers */ memset(u.set, 0, sizeof *u.set); @@ -463,6 +460,16 @@ static int rndis_bind(struct usbnet *dev, struct usb_interface *intf) return generic_rndis_bind(dev, intf, FLAG_RNDIS_PHYM_NOT_WIRELESS); } +static int zte_rndis_bind(struct usbnet *dev, struct usb_interface *intf) +{ + int status = rndis_bind(dev, intf); + + if (!status && (dev->net->dev_addr[0] & 0x02)) + eth_hw_addr_random(dev->net); + + return status; +} + void rndis_unbind(struct usbnet *dev, struct usb_interface *intf) { struct rndis_halt *halt; @@ -485,10 +492,14 @@ EXPORT_SYMBOL_GPL(rndis_unbind); */ int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb) { + bool dst_mac_fixup; + /* This check is no longer done by usbnet */ if (skb->len < dev->net->hard_header_len) return 0; + dst_mac_fixup = !!(dev->driver_info->data & RNDIS_DRIVER_DATA_DST_MAC_FIXUP); + /* peripheral may have batched packets to us... */ while (likely(skb->len)) { struct rndis_data_hdr *hdr = (void *)skb->data; @@ -523,10 +534,17 @@ int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb) break; skb_pull(skb, msg_len - sizeof *hdr); skb_trim(skb2, data_len); + + if (unlikely(dst_mac_fixup)) + usbnet_cdc_zte_rx_fixup(dev, skb2); + usbnet_skb_return(dev, skb2); } /* caller will usbnet_skb_return the remaining packet */ + if (unlikely(dst_mac_fixup)) + usbnet_cdc_zte_rx_fixup(dev, skb); + return 1; } EXPORT_SYMBOL_GPL(rndis_rx_fixup); @@ -600,6 +618,17 @@ static const struct driver_info rndis_poll_status_info = { .tx_fixup = rndis_tx_fixup, }; +static const struct driver_info zte_rndis_info = { + .description = "ZTE RNDIS device", + .flags = FLAG_ETHER | FLAG_POINTTOPOINT | FLAG_FRAMING_RN | FLAG_NO_SETINT, + .data = RNDIS_DRIVER_DATA_DST_MAC_FIXUP, + .bind = zte_rndis_bind, + .unbind = rndis_unbind, + .status = rndis_status, + .rx_fixup = rndis_rx_fixup, + .tx_fixup = rndis_tx_fixup, +}; + /*-------------------------------------------------------------------------*/ static const struct usb_device_id products [] = { @@ -614,6 +643,16 @@ static const struct usb_device_id products [] = { USB_CLASS_COMM, 2 /* ACM */, 0x0ff), .driver_info = (unsigned long)&rndis_info, }, { + /* ZTE WWAN modules */ + USB_VENDOR_AND_INTERFACE_INFO(0x19d2, + USB_CLASS_WIRELESS_CONTROLLER, 1, 3), + .driver_info = (unsigned long)&zte_rndis_info, +}, { + /* ZTE WWAN modules, ACM flavour */ + USB_VENDOR_AND_INTERFACE_INFO(0x19d2, + USB_CLASS_COMM, 2 /* ACM */, 0x0ff), + .driver_info = (unsigned long)&zte_rndis_info, +}, { /* RNDIS is MSFT's un-official variant of CDC ACM */ USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff), .driver_info = (unsigned long) &rndis_info, |