diff options
author | H. Peter Anvin <hpa@linux.intel.com> | 2013-04-20 20:16:44 +0400 |
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committer | H. Peter Anvin <hpa@linux.intel.com> | 2013-04-20 20:16:44 +0400 |
commit | f53f292eeaa234615c31a1306babe703fc4263f2 (patch) | |
tree | 707b0933a20f7dc05495e974243a23b5c9f8c918 /drivers/net/usb/cdc_ncm.c | |
parent | 15b9c359f288b09003cb70f7ed204affc0c6614d (diff) | |
parent | a9499fa7cd3fd4824a7202d00c766b269fa3bda6 (diff) | |
download | linux-f53f292eeaa234615c31a1306babe703fc4263f2.tar.xz |
Merge remote-tracking branch 'efi/chainsaw' into x86/efi
Resolved Conflicts:
drivers/firmware/efivars.c
fs/efivarsfs/file.c
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'drivers/net/usb/cdc_ncm.c')
-rw-r--r-- | drivers/net/usb/cdc_ncm.c | 61 |
1 files changed, 46 insertions, 15 deletions
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 9197b2c72ca3..4709fa3497cf 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -55,6 +55,14 @@ #define DRIVER_VERSION "14-Mar-2012" +#if IS_ENABLED(CONFIG_USB_NET_CDC_MBIM) +static bool prefer_mbim = true; +#else +static bool prefer_mbim; +#endif +module_param(prefer_mbim, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(prefer_mbim, "Prefer MBIM setting on dual NCM/MBIM functions"); + static void cdc_ncm_txpath_bh(unsigned long param); static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx); static enum hrtimer_restart cdc_ncm_tx_timer_cb(struct hrtimer *hr_timer); @@ -65,9 +73,9 @@ cdc_ncm_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) { struct usbnet *dev = netdev_priv(net); - strncpy(info->driver, dev->driver_name, sizeof(info->driver)); - strncpy(info->version, DRIVER_VERSION, sizeof(info->version)); - strncpy(info->fw_version, dev->driver_info->description, + strlcpy(info->driver, dev->driver_name, sizeof(info->driver)); + strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); + strlcpy(info->fw_version, dev->driver_info->description, sizeof(info->fw_version)); usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info)); } @@ -550,9 +558,12 @@ void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf) } EXPORT_SYMBOL_GPL(cdc_ncm_unbind); -static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf) +/* Select the MBIM altsetting iff it is preferred and available, + * returning the number of the corresponding data interface altsetting + */ +u8 cdc_ncm_select_altsetting(struct usbnet *dev, struct usb_interface *intf) { - int ret; + struct usb_host_interface *alt; /* The MBIM spec defines a NCM compatible default altsetting, * which we may have matched: @@ -568,18 +579,27 @@ static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf) * endpoint descriptors, shall be constructed according to * the rules given in section 6 (USB Device Model) of this * specification." - * - * Do not bind to such interfaces, allowing cdc_mbim to handle - * them */ -#if IS_ENABLED(CONFIG_USB_NET_CDC_MBIM) - if ((intf->num_altsetting == 2) && - !usb_set_interface(dev->udev, - intf->cur_altsetting->desc.bInterfaceNumber, - CDC_NCM_COMM_ALTSETTING_MBIM) && - cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) + if (prefer_mbim && intf->num_altsetting == 2) { + alt = usb_altnum_to_altsetting(intf, CDC_NCM_COMM_ALTSETTING_MBIM); + if (alt && cdc_ncm_comm_intf_is_mbim(alt) && + !usb_set_interface(dev->udev, + intf->cur_altsetting->desc.bInterfaceNumber, + CDC_NCM_COMM_ALTSETTING_MBIM)) + return CDC_NCM_DATA_ALTSETTING_MBIM; + } + return CDC_NCM_DATA_ALTSETTING_NCM; +} +EXPORT_SYMBOL_GPL(cdc_ncm_select_altsetting); + +static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf) +{ + int ret; + + /* MBIM backwards compatible function? */ + cdc_ncm_select_altsetting(dev, intf); + if (cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) return -ENODEV; -#endif /* NCM data altsetting is always 1 */ ret = cdc_ncm_bind_common(dev, intf, 1); @@ -1208,6 +1228,14 @@ static const struct usb_device_id cdc_devs[] = { .driver_info = (unsigned long) &wwan_info, }, + /* tag Huawei devices as wwan */ + { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, + USB_CLASS_COMM, + USB_CDC_SUBCLASS_NCM, + USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&wwan_info, + }, + /* Huawei NCM devices disguised as vendor specific */ { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x16), .driver_info = (unsigned long)&wwan_info, @@ -1215,6 +1243,9 @@ static const struct usb_device_id cdc_devs[] = { { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x46), .driver_info = (unsigned long)&wwan_info, }, + { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x76), + .driver_info = (unsigned long)&wwan_info, + }, /* Infineon(now Intel) HSPA Modem platform */ { USB_DEVICE_AND_INTERFACE_INFO(0x1519, 0x0443, |