diff options
Diffstat (limited to 'drivers/net/wireless/zd1211rw/zd_usb.c')
| -rw-r--r-- | drivers/net/wireless/zd1211rw/zd_usb.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c index 347ebc17bd74..83e23c320ece 100644 --- a/drivers/net/wireless/zd1211rw/zd_usb.c +++ b/drivers/net/wireless/zd1211rw/zd_usb.c @@ -48,6 +48,8 @@ static struct usb_device_id usb_ids[] = { { USB_DEVICE(0x0ace, 0x1215), .driver_info = DEVICE_ZD1211B }, { USB_DEVICE(0x157e, 0x300d), .driver_info = DEVICE_ZD1211B }, { USB_DEVICE(0x079b, 0x0062), .driver_info = DEVICE_ZD1211B }, + /* "Driverless" devices that need ejecting */ + { USB_DEVICE(0x0ace, 0x2011), .driver_info = DEVICE_INSTALLER }, {} }; @@ -951,6 +953,55 @@ static void print_id(struct usb_device *udev) #define print_id(udev) do { } while (0) #endif +static int eject_installer(struct usb_interface *intf) +{ + struct usb_device *udev = interface_to_usbdev(intf); + struct usb_host_interface *iface_desc = &intf->altsetting[0]; + struct usb_endpoint_descriptor *endpoint; + unsigned char *cmd; + u8 bulk_out_ep; + int r; + + /* Find bulk out endpoint */ + endpoint = &iface_desc->endpoint[1].desc; + if ((endpoint->bEndpointAddress & USB_TYPE_MASK) == USB_DIR_OUT && + (endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_BULK) { + bulk_out_ep = endpoint->bEndpointAddress; + } else { + dev_err(&udev->dev, + "zd1211rw: Could not find bulk out endpoint\n"); + return -ENODEV; + } + + cmd = kzalloc(31, GFP_KERNEL); + if (cmd == NULL) + return -ENODEV; + + /* USB bulk command block */ + cmd[0] = 0x55; /* bulk command signature */ + cmd[1] = 0x53; /* bulk command signature */ + cmd[2] = 0x42; /* bulk command signature */ + cmd[3] = 0x43; /* bulk command signature */ + cmd[14] = 6; /* command length */ + + cmd[15] = 0x1b; /* SCSI command: START STOP UNIT */ + cmd[19] = 0x2; /* eject disc */ + + dev_info(&udev->dev, "Ejecting virtual installer media...\n"); + r = usb_bulk_msg(udev, usb_sndbulkpipe(udev, bulk_out_ep), + cmd, 31, NULL, 2000); + kfree(cmd); + if (r) + return r; + + /* At this point, the device disconnects and reconnects with the real + * ID numbers. */ + + usb_set_intfdata(intf, NULL); + return 0; +} + static int probe(struct usb_interface *intf, const struct usb_device_id *id) { int r; @@ -959,6 +1010,9 @@ static int probe(struct usb_interface *intf, const struct usb_device_id *id) print_id(udev); + if (id->driver_info & DEVICE_INSTALLER) + return eject_installer(intf); + switch (udev->speed) { case USB_SPEED_LOW: case USB_SPEED_FULL: @@ -1024,6 +1078,11 @@ static void disconnect(struct usb_interface *intf) struct zd_mac *mac = zd_netdev_mac(netdev); struct zd_usb *usb = &mac->chip.usb; + /* Either something really bad happened, or we're just dealing with + * a DEVICE_INSTALLER. */ + if (netdev == NULL) + return; + dev_dbg_f(zd_usb_dev(usb), "\n"); zd_netdev_disconnect(netdev); |
