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It will be required for exposing the channel(s) through WWAN framework. Signed-off-by: Loic Poulain --- drivers/net/usb/cdc_mbim.c | 1 + drivers/net/usb/huawei_cdc_ncm.c | 1 + drivers/net/usb/qmi_wwan.c | 3 ++- drivers/usb/class/cdc-wdm.c | 13 +++++++++---- include/linux/usb/cdc-wdm.h | 16 +++++++++++++++- 5 files changed, 28 insertions(+), 6 deletions(-) -- 2.7.4 diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c index 5db6627..63b134b 100644 --- a/drivers/net/usb/cdc_mbim.c +++ b/drivers/net/usb/cdc_mbim.c @@ -168,6 +168,7 @@ static int cdc_mbim_bind(struct usbnet *dev, struct usb_interface *intf) subdriver = usb_cdc_wdm_register(ctx->control, &dev->status->desc, le16_to_cpu(ctx->mbim_desc->wMaxControlMessage), + USB_CDC_WDM_MBIM, cdc_mbim_wdm_manage_power); if (IS_ERR(subdriver)) { ret = PTR_ERR(subdriver); diff --git a/drivers/net/usb/huawei_cdc_ncm.c b/drivers/net/usb/huawei_cdc_ncm.c index a87f0da..388a46b 100644 --- a/drivers/net/usb/huawei_cdc_ncm.c +++ b/drivers/net/usb/huawei_cdc_ncm.c @@ -96,6 +96,7 @@ static int huawei_cdc_ncm_bind(struct usbnet *usbnet_dev, subdriver = usb_cdc_wdm_register(ctx->control, &usbnet_dev->status->desc, 1024, /* wMaxCommand */ + USB_CDC_WDM_AT, huawei_cdc_ncm_wdm_manage_power); if (IS_ERR(subdriver)) { ret = PTR_ERR(subdriver); diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 17a0505..fa38471 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -724,7 +724,8 @@ static int qmi_wwan_register_subdriver(struct usbnet *dev) /* register subdriver */ subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc, - 4096, &qmi_wwan_cdc_wdm_manage_power); + 4096, USB_CDC_WDM_QMI, + &qmi_wwan_cdc_wdm_manage_power); if (IS_ERR(subdriver)) { dev_err(&info->control->dev, "subdriver registration failed\n"); rv = PTR_ERR(subdriver); diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 508b1c3..b59f146 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -106,6 +106,8 @@ struct wdm_device { struct list_head device_list; int (*manage_power)(struct usb_interface *, int); + + enum usb_cdc_wdm_type type; }; static struct usb_driver wdm_driver; @@ -836,7 +838,8 @@ static void service_interrupt_work(struct work_struct *work) /* --- hotplug --- */ static int wdm_create(struct usb_interface *intf, struct usb_endpoint_descriptor *ep, - u16 bufsize, int (*manage_power)(struct usb_interface *, int)) + u16 bufsize, enum usb_cdc_wdm_type type, + int (*manage_power)(struct usb_interface *, int)) { int rv = -ENOMEM; struct wdm_device *desc; @@ -853,6 +856,7 @@ static int wdm_create(struct usb_interface *intf, struct usb_endpoint_descriptor /* this will be expanded and needed in hardware endianness */ desc->inum = cpu_to_le16((u16)intf->cur_altsetting->desc.bInterfaceNumber); desc->intf = intf; + desc->type = type; INIT_WORK(&desc->rxwork, wdm_rxwork); INIT_WORK(&desc->service_outs_intr, service_interrupt_work); @@ -977,7 +981,7 @@ static int wdm_probe(struct usb_interface *intf, const struct usb_device_id *id) goto err; ep = &iface->endpoint[0].desc; - rv = wdm_create(intf, ep, maxcom, &wdm_manage_power); + rv = wdm_create(intf, ep, maxcom, USB_CDC_WDM_UNKNOWN, &wdm_manage_power); err: return rv; @@ -988,6 +992,7 @@ static int wdm_probe(struct usb_interface *intf, const struct usb_device_id *id) * @intf: usb interface the subdriver will associate with * @ep: interrupt endpoint to monitor for notifications * @bufsize: maximum message size to support for read/write + * @type: Type/protocol of the transported data (MBIM, QMI...) * @manage_power: call-back invoked during open and release to * manage the device's power * Create WDM usb class character device and associate it with intf @@ -1005,12 +1010,12 @@ static int wdm_probe(struct usb_interface *intf, const struct usb_device_id *id) */ struct usb_driver *usb_cdc_wdm_register(struct usb_interface *intf, struct usb_endpoint_descriptor *ep, - int bufsize, + int bufsize, enum usb_cdc_wdm_type type, int (*manage_power)(struct usb_interface *, int)) { int rv; - rv = wdm_create(intf, ep, bufsize, manage_power); + rv = wdm_create(intf, ep, bufsize, type, manage_power); if (rv < 0) goto err; diff --git a/include/linux/usb/cdc-wdm.h b/include/linux/usb/cdc-wdm.h index 9b895f9..ba9702d 100644 --- a/include/linux/usb/cdc-wdm.h +++ b/include/linux/usb/cdc-wdm.h @@ -14,9 +14,23 @@ #include +/** + * enum usb_cdc_wdm_type - CDC WDM endpoint type + * @USB_CDC_WDM_UNKNOWN: Unknown type + * @USB_CDC_WDM_MBIM: Mobile Broadband Interface Model control + * @USB_CDC_WDM_QMI: Qualcomm Modem Interface for modem control + * @USB_CDC_WDM_AT: AT commands interface + */ +enum usb_cdc_wdm_type { + USB_CDC_WDM_UNKNOWN, + USB_CDC_WDM_MBIM, + USB_CDC_WDM_QMI, + USB_CDC_WDM_AT +}; + extern struct usb_driver *usb_cdc_wdm_register(struct usb_interface *intf, struct usb_endpoint_descriptor *ep, - int bufsize, + int bufsize, enum usb_cdc_wdm_type type, int (*manage_power)(struct usb_interface *, int)); #endif /* __LINUX_USB_CDC_WDM_H */