| /* |
| * Copyright (c) 2012 Bjørn Mork <bjorn@mork.no> |
| * |
| * The probing code is heavily inspired by cdc_ether, which is: |
| * Copyright (C) 2003-2005 by David Brownell |
| * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync) |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * version 2 as published by the Free Software Foundation. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/sched/signal.h> |
| #include <linux/netdevice.h> |
| #include <linux/ethtool.h> |
| #include <linux/etherdevice.h> |
| #include <linux/if_arp.h> |
| #include <linux/mii.h> |
| #include <linux/rtnetlink.h> |
| #include <linux/usb.h> |
| #include <linux/usb/cdc.h> |
| #include <linux/usb/usbnet.h> |
| #include <linux/usb/cdc-wdm.h> |
| |
| /* This driver supports wwan (3G/LTE/?) devices using a vendor |
| * specific management protocol called Qualcomm MSM Interface (QMI) - |
| * in addition to the more common AT commands over serial interface |
| * management |
| * |
| * QMI is wrapped in CDC, using CDC encapsulated commands on the |
| * control ("master") interface of a two-interface CDC Union |
| * resembling standard CDC ECM. The devices do not use the control |
| * interface for any other CDC messages. Most likely because the |
| * management protocol is used in place of the standard CDC |
| * notifications NOTIFY_NETWORK_CONNECTION and NOTIFY_SPEED_CHANGE |
| * |
| * Alternatively, control and data functions can be combined in a |
| * single USB interface. |
| * |
| * Handling a protocol like QMI is out of the scope for any driver. |
| * It is exported as a character device using the cdc-wdm driver as |
| * a subdriver, enabling userspace applications ("modem managers") to |
| * handle it. |
| * |
| * These devices may alternatively/additionally be configured using AT |
| * commands on a serial interface |
| */ |
| |
| /* driver specific data */ |
| struct qmi_wwan_state { |
| struct usb_driver *subdriver; |
| atomic_t pmcount; |
| unsigned long flags; |
| struct usb_interface *control; |
| struct usb_interface *data; |
| }; |
| |
| enum qmi_wwan_flags { |
| QMI_WWAN_FLAG_RAWIP = 1 << 0, |
| QMI_WWAN_FLAG_MUX = 1 << 1, |
| }; |
| |
| enum qmi_wwan_quirks { |
| QMI_WWAN_QUIRK_DTR = 1 << 0, /* needs "set DTR" request */ |
| }; |
| |
| struct qmimux_hdr { |
| u8 pad; |
| u8 mux_id; |
| __be16 pkt_len; |
| }; |
| |
| struct qmimux_priv { |
| struct net_device *real_dev; |
| u8 mux_id; |
| }; |
| |
| static int qmimux_open(struct net_device *dev) |
| { |
| struct qmimux_priv *priv = netdev_priv(dev); |
| struct net_device *real_dev = priv->real_dev; |
| |
| if (!(priv->real_dev->flags & IFF_UP)) |
| return -ENETDOWN; |
| |
| if (netif_carrier_ok(real_dev)) |
| netif_carrier_on(dev); |
| return 0; |
| } |
| |
| static int qmimux_stop(struct net_device *dev) |
| { |
| netif_carrier_off(dev); |
| return 0; |
| } |
| |
| static netdev_tx_t qmimux_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| { |
| struct qmimux_priv *priv = netdev_priv(dev); |
| unsigned int len = skb->len; |
| struct qmimux_hdr *hdr; |
| |
| hdr = skb_push(skb, sizeof(struct qmimux_hdr)); |
| hdr->pad = 0; |
| hdr->mux_id = priv->mux_id; |
| hdr->pkt_len = cpu_to_be16(len); |
| skb->dev = priv->real_dev; |
| return dev_queue_xmit(skb); |
| } |
| |
| static const struct net_device_ops qmimux_netdev_ops = { |
| .ndo_open = qmimux_open, |
| .ndo_stop = qmimux_stop, |
| .ndo_start_xmit = qmimux_start_xmit, |
| }; |
| |
| static void qmimux_setup(struct net_device *dev) |
| { |
| dev->header_ops = NULL; /* No header */ |
| dev->type = ARPHRD_NONE; |
| dev->hard_header_len = 0; |
| dev->addr_len = 0; |
| dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST; |
| dev->netdev_ops = &qmimux_netdev_ops; |
| dev->needs_free_netdev = true; |
| } |
| |
| static struct net_device *qmimux_find_dev(struct usbnet *dev, u8 mux_id) |
| { |
| struct qmimux_priv *priv; |
| struct list_head *iter; |
| struct net_device *ldev; |
| |
| rcu_read_lock(); |
| netdev_for_each_upper_dev_rcu(dev->net, ldev, iter) { |
| priv = netdev_priv(ldev); |
| if (priv->mux_id == mux_id) { |
| rcu_read_unlock(); |
| return ldev; |
| } |
| } |
| rcu_read_unlock(); |
| return NULL; |
| } |
| |
| static bool qmimux_has_slaves(struct usbnet *dev) |
| { |
| return !list_empty(&dev->net->adj_list.upper); |
| } |
| |
| static int qmimux_rx_fixup(struct usbnet *dev, struct sk_buff *skb) |
| { |
| unsigned int len, offset = sizeof(struct qmimux_hdr); |
| struct qmimux_hdr *hdr; |
| struct net_device *net; |
| struct sk_buff *skbn; |
| |
| while (offset < skb->len) { |
| hdr = (struct qmimux_hdr *)skb->data; |
| len = be16_to_cpu(hdr->pkt_len); |
| |
| /* drop the packet, bogus length */ |
| if (offset + len > skb->len) |
| return 0; |
| |
| /* control packet, we do not know what to do */ |
| if (hdr->pad & 0x80) |
| goto skip; |
| |
| net = qmimux_find_dev(dev, hdr->mux_id); |
| if (!net) |
| goto skip; |
| skbn = netdev_alloc_skb(net, len); |
| if (!skbn) |
| return 0; |
| skbn->dev = net; |
| |
| switch (skb->data[offset] & 0xf0) { |
| case 0x40: |
| skbn->protocol = htons(ETH_P_IP); |
| break; |
| case 0x60: |
| skbn->protocol = htons(ETH_P_IPV6); |
| break; |
| default: |
| /* not ip - do not know what to do */ |
| goto skip; |
| } |
| |
| skb_put_data(skbn, skb->data + offset, len); |
| if (netif_rx(skbn) != NET_RX_SUCCESS) |
| return 0; |
| |
| skip: |
| offset += len + sizeof(struct qmimux_hdr); |
| } |
| return 1; |
| } |
| |
| static int qmimux_register_device(struct net_device *real_dev, u8 mux_id) |
| { |
| struct net_device *new_dev; |
| struct qmimux_priv *priv; |
| int err; |
| |
| new_dev = alloc_netdev(sizeof(struct qmimux_priv), |
| "qmimux%d", NET_NAME_UNKNOWN, qmimux_setup); |
| if (!new_dev) |
| return -ENOBUFS; |
| |
| dev_net_set(new_dev, dev_net(real_dev)); |
| priv = netdev_priv(new_dev); |
| priv->mux_id = mux_id; |
| priv->real_dev = real_dev; |
| |
| err = register_netdevice(new_dev); |
| if (err < 0) |
| goto out_free_newdev; |
| |
| /* Account for reference in struct qmimux_priv_priv */ |
| dev_hold(real_dev); |
| |
| err = netdev_upper_dev_link(real_dev, new_dev); |
| if (err) |
| goto out_unregister_netdev; |
| |
| netif_stacked_transfer_operstate(real_dev, new_dev); |
| |
| return 0; |
| |
| out_unregister_netdev: |
| unregister_netdevice(new_dev); |
| dev_put(real_dev); |
| |
| out_free_newdev: |
| free_netdev(new_dev); |
| return err; |
| } |
| |
| static void qmimux_unregister_device(struct net_device *dev) |
| { |
| struct qmimux_priv *priv = netdev_priv(dev); |
| struct net_device *real_dev = priv->real_dev; |
| |
| netdev_upper_dev_unlink(real_dev, dev); |
| unregister_netdevice(dev); |
| |
| /* Get rid of the reference to real_dev */ |
| dev_put(real_dev); |
| } |
| |
| static void qmi_wwan_netdev_setup(struct net_device *net) |
| { |
| struct usbnet *dev = netdev_priv(net); |
| struct qmi_wwan_state *info = (void *)&dev->data; |
| |
| if (info->flags & QMI_WWAN_FLAG_RAWIP) { |
| net->header_ops = NULL; /* No header */ |
| net->type = ARPHRD_NONE; |
| net->hard_header_len = 0; |
| net->addr_len = 0; |
| net->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST; |
| netdev_dbg(net, "mode: raw IP\n"); |
| } else if (!net->header_ops) { /* don't bother if already set */ |
| ether_setup(net); |
| netdev_dbg(net, "mode: Ethernet\n"); |
| } |
| |
| /* recalculate buffers after changing hard_header_len */ |
| usbnet_change_mtu(net, net->mtu); |
| } |
| |
| static ssize_t raw_ip_show(struct device *d, struct device_attribute *attr, char *buf) |
| { |
| struct usbnet *dev = netdev_priv(to_net_dev(d)); |
| struct qmi_wwan_state *info = (void *)&dev->data; |
| |
| return sprintf(buf, "%c\n", info->flags & QMI_WWAN_FLAG_RAWIP ? 'Y' : 'N'); |
| } |
| |
| static ssize_t raw_ip_store(struct device *d, struct device_attribute *attr, const char *buf, size_t len) |
| { |
| struct usbnet *dev = netdev_priv(to_net_dev(d)); |
| struct qmi_wwan_state *info = (void *)&dev->data; |
| bool enable; |
| int ret; |
| |
| if (strtobool(buf, &enable)) |
| return -EINVAL; |
| |
| /* no change? */ |
| if (enable == (info->flags & QMI_WWAN_FLAG_RAWIP)) |
| return len; |
| |
| if (!rtnl_trylock()) |
| return restart_syscall(); |
| |
| /* we don't want to modify a running netdev */ |
| if (netif_running(dev->net)) { |
| netdev_err(dev->net, "Cannot change a running device\n"); |
| ret = -EBUSY; |
| goto err; |
| } |
| |
| /* let other drivers deny the change */ |
| ret = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev->net); |
| ret = notifier_to_errno(ret); |
| if (ret) { |
| netdev_err(dev->net, "Type change was refused\n"); |
| goto err; |
| } |
| |
| if (enable) |
| info->flags |= QMI_WWAN_FLAG_RAWIP; |
| else |
| info->flags &= ~QMI_WWAN_FLAG_RAWIP; |
| qmi_wwan_netdev_setup(dev->net); |
| call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev->net); |
| ret = len; |
| err: |
| rtnl_unlock(); |
| return ret; |
| } |
| |
| static ssize_t add_mux_show(struct device *d, struct device_attribute *attr, char *buf) |
| { |
| struct net_device *dev = to_net_dev(d); |
| struct qmimux_priv *priv; |
| struct list_head *iter; |
| struct net_device *ldev; |
| ssize_t count = 0; |
| |
| rcu_read_lock(); |
| netdev_for_each_upper_dev_rcu(dev, ldev, iter) { |
| priv = netdev_priv(ldev); |
| count += scnprintf(&buf[count], PAGE_SIZE - count, |
| "0x%02x\n", priv->mux_id); |
| } |
| rcu_read_unlock(); |
| return count; |
| } |
| |
| static ssize_t add_mux_store(struct device *d, struct device_attribute *attr, const char *buf, size_t len) |
| { |
| struct usbnet *dev = netdev_priv(to_net_dev(d)); |
| struct qmi_wwan_state *info = (void *)&dev->data; |
| u8 mux_id; |
| int ret; |
| |
| if (kstrtou8(buf, 0, &mux_id)) |
| return -EINVAL; |
| |
| /* mux_id [1 - 0x7f] range empirically found */ |
| if (mux_id < 1 || mux_id > 0x7f) |
| return -EINVAL; |
| |
| if (!rtnl_trylock()) |
| return restart_syscall(); |
| |
| if (qmimux_find_dev(dev, mux_id)) { |
| netdev_err(dev->net, "mux_id already present\n"); |
| ret = -EINVAL; |
| goto err; |
| } |
| |
| /* we don't want to modify a running netdev */ |
| if (netif_running(dev->net)) { |
| netdev_err(dev->net, "Cannot change a running device\n"); |
| ret = -EBUSY; |
| goto err; |
| } |
| |
| ret = qmimux_register_device(dev->net, mux_id); |
| if (!ret) { |
| info->flags |= QMI_WWAN_FLAG_MUX; |
| ret = len; |
| } |
| err: |
| rtnl_unlock(); |
| return ret; |
| } |
| |
| static ssize_t del_mux_show(struct device *d, struct device_attribute *attr, char *buf) |
| { |
| return add_mux_show(d, attr, buf); |
| } |
| |
| static ssize_t del_mux_store(struct device *d, struct device_attribute *attr, const char *buf, size_t len) |
| { |
| struct usbnet *dev = netdev_priv(to_net_dev(d)); |
| struct qmi_wwan_state *info = (void *)&dev->data; |
| struct net_device *del_dev; |
| u8 mux_id; |
| int ret = 0; |
| |
| if (kstrtou8(buf, 0, &mux_id)) |
| return -EINVAL; |
| |
| if (!rtnl_trylock()) |
| return restart_syscall(); |
| |
| /* we don't want to modify a running netdev */ |
| if (netif_running(dev->net)) { |
| netdev_err(dev->net, "Cannot change a running device\n"); |
| ret = -EBUSY; |
| goto err; |
| } |
| |
| del_dev = qmimux_find_dev(dev, mux_id); |
| if (!del_dev) { |
| netdev_err(dev->net, "mux_id not present\n"); |
| ret = -EINVAL; |
| goto err; |
| } |
| qmimux_unregister_device(del_dev); |
| |
| if (!qmimux_has_slaves(dev)) |
| info->flags &= ~QMI_WWAN_FLAG_MUX; |
| ret = len; |
| err: |
| rtnl_unlock(); |
| return ret; |
| } |
| |
| static DEVICE_ATTR_RW(raw_ip); |
| static DEVICE_ATTR_RW(add_mux); |
| static DEVICE_ATTR_RW(del_mux); |
| |
| static struct attribute *qmi_wwan_sysfs_attrs[] = { |
| &dev_attr_raw_ip.attr, |
| &dev_attr_add_mux.attr, |
| &dev_attr_del_mux.attr, |
| NULL, |
| }; |
| |
| static struct attribute_group qmi_wwan_sysfs_attr_group = { |
| .name = "qmi", |
| .attrs = qmi_wwan_sysfs_attrs, |
| }; |
| |
| /* default ethernet address used by the modem */ |
| static const u8 default_modem_addr[ETH_ALEN] = {0x02, 0x50, 0xf3}; |
| |
| static const u8 buggy_fw_addr[ETH_ALEN] = {0x00, 0xa0, 0xc6, 0x00, 0x00, 0x00}; |
| |
| /* Make up an ethernet header if the packet doesn't have one. |
| * |
| * A firmware bug common among several devices cause them to send raw |
| * IP packets under some circumstances. There is no way for the |
| * driver/host to know when this will happen. And even when the bug |
| * hits, some packets will still arrive with an intact header. |
| * |
| * The supported devices are only capably of sending IPv4, IPv6 and |
| * ARP packets on a point-to-point link. Any packet with an ethernet |
| * header will have either our address or a broadcast/multicast |
| * address as destination. ARP packets will always have a header. |
| * |
| * This means that this function will reliably add the appropriate |
| * header iff necessary, provided our hardware address does not start |
| * with 4 or 6. |
| * |
| * Another common firmware bug results in all packets being addressed |
| * to 00:a0:c6:00:00:00 despite the host address being different. |
| * This function will also fixup such packets. |
| */ |
| static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb) |
| { |
| struct qmi_wwan_state *info = (void *)&dev->data; |
| bool rawip = info->flags & QMI_WWAN_FLAG_RAWIP; |
| __be16 proto; |
| |
| /* This check is no longer done by usbnet */ |
| if (skb->len < dev->net->hard_header_len) |
| return 0; |
| |
| if (info->flags & QMI_WWAN_FLAG_MUX) |
| return qmimux_rx_fixup(dev, skb); |
| |
| switch (skb->data[0] & 0xf0) { |
| case 0x40: |
| proto = htons(ETH_P_IP); |
| break; |
| case 0x60: |
| proto = htons(ETH_P_IPV6); |
| break; |
| case 0x00: |
| if (rawip) |
| return 0; |
| if (is_multicast_ether_addr(skb->data)) |
| return 1; |
| /* possibly bogus destination - rewrite just in case */ |
| skb_reset_mac_header(skb); |
| goto fix_dest; |
| default: |
| if (rawip) |
| return 0; |
| /* pass along other packets without modifications */ |
| return 1; |
| } |
| if (rawip) { |
| skb->dev = dev->net; /* normally set by eth_type_trans */ |
| skb->protocol = proto; |
| return 1; |
| } |
| |
| if (skb_headroom(skb) < ETH_HLEN) |
| return 0; |
| skb_push(skb, ETH_HLEN); |
| skb_reset_mac_header(skb); |
| eth_hdr(skb)->h_proto = proto; |
| eth_zero_addr(eth_hdr(skb)->h_source); |
| fix_dest: |
| memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN); |
| return 1; |
| } |
| |
| /* very simplistic detection of IPv4 or IPv6 headers */ |
| static bool possibly_iphdr(const char *data) |
| { |
| return (data[0] & 0xd0) == 0x40; |
| } |
| |
| /* disallow addresses which may be confused with IP headers */ |
| static int qmi_wwan_mac_addr(struct net_device *dev, void *p) |
| { |
| int ret; |
| struct sockaddr *addr = p; |
| |
| ret = eth_prepare_mac_addr_change(dev, p); |
| if (ret < 0) |
| return ret; |
| if (possibly_iphdr(addr->sa_data)) |
| return -EADDRNOTAVAIL; |
| eth_commit_mac_addr_change(dev, p); |
| return 0; |
| } |
| |
| static const struct net_device_ops qmi_wwan_netdev_ops = { |
| .ndo_open = usbnet_open, |
| .ndo_stop = usbnet_stop, |
| .ndo_start_xmit = usbnet_start_xmit, |
| .ndo_tx_timeout = usbnet_tx_timeout, |
| .ndo_change_mtu = usbnet_change_mtu, |
| .ndo_get_stats64 = usbnet_get_stats64, |
| .ndo_set_mac_address = qmi_wwan_mac_addr, |
| .ndo_validate_addr = eth_validate_addr, |
| }; |
| |
| /* using a counter to merge subdriver requests with our own into a |
| * combined state |
| */ |
| static int qmi_wwan_manage_power(struct usbnet *dev, int on) |
| { |
| struct qmi_wwan_state *info = (void *)&dev->data; |
| int rv; |
| |
| dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__, |
| atomic_read(&info->pmcount), on); |
| |
| if ((on && atomic_add_return(1, &info->pmcount) == 1) || |
| (!on && atomic_dec_and_test(&info->pmcount))) { |
| /* need autopm_get/put here to ensure the usbcore sees |
| * the new value |
| */ |
| rv = usb_autopm_get_interface(dev->intf); |
| dev->intf->needs_remote_wakeup = on; |
| if (!rv) |
| usb_autopm_put_interface(dev->intf); |
| } |
| return 0; |
| } |
| |
| static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on) |
| { |
| struct usbnet *dev = usb_get_intfdata(intf); |
| |
| /* can be called while disconnecting */ |
| if (!dev) |
| return 0; |
| return qmi_wwan_manage_power(dev, on); |
| } |
| |
| /* collect all three endpoints and register subdriver */ |
| static int qmi_wwan_register_subdriver(struct usbnet *dev) |
| { |
| int rv; |
| struct usb_driver *subdriver = NULL; |
| struct qmi_wwan_state *info = (void *)&dev->data; |
| |
| /* collect bulk endpoints */ |
| rv = usbnet_get_endpoints(dev, info->data); |
| if (rv < 0) |
| goto err; |
| |
| /* update status endpoint if separate control interface */ |
| if (info->control != info->data) |
| dev->status = &info->control->cur_altsetting->endpoint[0]; |
| |
| /* require interrupt endpoint for subdriver */ |
| if (!dev->status) { |
| rv = -EINVAL; |
| goto err; |
| } |
| |
| /* for subdriver power management */ |
| atomic_set(&info->pmcount, 0); |
| |
| /* register subdriver */ |
| subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc, |
| 4096, &qmi_wwan_cdc_wdm_manage_power); |
| if (IS_ERR(subdriver)) { |
| dev_err(&info->control->dev, "subdriver registration failed\n"); |
| rv = PTR_ERR(subdriver); |
| goto err; |
| } |
| |
| /* prevent usbnet from using status endpoint */ |
| dev->status = NULL; |
| |
| /* save subdriver struct for suspend/resume wrappers */ |
| info->subdriver = subdriver; |
| |
| err: |
| return rv; |
| } |
| |
| /* Send CDC SetControlLineState request, setting or clearing the DTR. |
| * "Required for Autoconnect and 9x30 to wake up" according to the |
| * GobiNet driver. The requirement has been verified on an MDM9230 |
| * based Sierra Wireless MC7455 |
| */ |
| static int qmi_wwan_change_dtr(struct usbnet *dev, bool on) |
| { |
| u8 intf = dev->intf->cur_altsetting->desc.bInterfaceNumber; |
| |
| return usbnet_write_cmd(dev, USB_CDC_REQ_SET_CONTROL_LINE_STATE, |
| USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
| on ? 0x01 : 0x00, intf, NULL, 0); |
| } |
| |
| static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf) |
| { |
| int status = -1; |
| u8 *buf = intf->cur_altsetting->extra; |
| int len = intf->cur_altsetting->extralen; |
| struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc; |
| struct usb_cdc_union_desc *cdc_union; |
| struct usb_cdc_ether_desc *cdc_ether; |
| struct usb_driver *driver = driver_of(intf); |
| struct qmi_wwan_state *info = (void *)&dev->data; |
| struct usb_cdc_parsed_header hdr; |
| |
| BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) < |
| sizeof(struct qmi_wwan_state))); |
| |
| /* set up initial state */ |
| info->control = intf; |
| info->data = intf; |
| |
| /* and a number of CDC descriptors */ |
| cdc_parse_cdc_header(&hdr, intf, buf, len); |
| cdc_union = hdr.usb_cdc_union_desc; |
| cdc_ether = hdr.usb_cdc_ether_desc; |
| |
| /* Use separate control and data interfaces if we found a CDC Union */ |
| if (cdc_union) { |
| info->data = usb_ifnum_to_if(dev->udev, |
| cdc_union->bSlaveInterface0); |
| if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 || |
| !info->data) { |
| dev_err(&intf->dev, |
| "bogus CDC Union: master=%u, slave=%u\n", |
| cdc_union->bMasterInterface0, |
| cdc_union->bSlaveInterface0); |
| |
| /* ignore and continue... */ |
| cdc_union = NULL; |
| info->data = intf; |
| } |
| } |
| |
| /* errors aren't fatal - we can live with the dynamic address */ |
| if (cdc_ether) { |
| dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize); |
| usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress); |
| } |
| |
| /* claim data interface and set it up */ |
| if (info->control != info->data) { |
| status = usb_driver_claim_interface(driver, info->data, dev); |
| if (status < 0) |
| goto err; |
| } |
| |
| status = qmi_wwan_register_subdriver(dev); |
| if (status < 0 && info->control != info->data) { |
| usb_set_intfdata(info->data, NULL); |
| usb_driver_release_interface(driver, info->data); |
| } |
| |
| /* disabling remote wakeup on MDM9x30 devices has the same |
| * effect as clearing DTR. The device will not respond to QMI |
| * requests until we set DTR again. This is similar to a |
| * QMI_CTL SYNC request, clearing a lot of firmware state |
| * including the client ID allocations. |
| * |
| * Our usage model allows a session to span multiple |
| * open/close events, so we must prevent the firmware from |
| * clearing out state the clients might need. |
| * |
| * MDM9x30 is the first QMI chipset with USB3 support. Abuse |
| * this fact to enable the quirk for all USB3 devices. |
| * |
| * There are also chipsets with the same "set DTR" requirement |
| * but without USB3 support. Devices based on these chips |
| * need a quirk flag in the device ID table. |
| */ |
| if (dev->driver_info->data & QMI_WWAN_QUIRK_DTR || |
| le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) { |
| qmi_wwan_manage_power(dev, 1); |
| qmi_wwan_change_dtr(dev, true); |
| } |
| |
| /* Never use the same address on both ends of the link, even if the |
| * buggy firmware told us to. Or, if device is assigned the well-known |
| * buggy firmware MAC address, replace it with a random address, |
| */ |
| if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) || |
| ether_addr_equal(dev->net->dev_addr, buggy_fw_addr)) |
| eth_hw_addr_random(dev->net); |
| |
| /* make MAC addr easily distinguishable from an IP header */ |
| if (possibly_iphdr(dev->net->dev_addr)) { |
| dev->net->dev_addr[0] |= 0x02; /* set local assignment bit */ |
| dev->net->dev_addr[0] &= 0xbf; /* clear "IP" bit */ |
| } |
| dev->net->netdev_ops = &qmi_wwan_netdev_ops; |
| dev->net->sysfs_groups[0] = &qmi_wwan_sysfs_attr_group; |
| err: |
| return status; |
| } |
| |
| static void qmi_wwan_unbind(struct usbnet *dev, struct usb_interface *intf) |
| { |
| struct qmi_wwan_state *info = (void *)&dev->data; |
| struct usb_driver *driver = driver_of(intf); |
| struct usb_interface *other; |
| |
| if (info->subdriver && info->subdriver->disconnect) |
| info->subdriver->disconnect(info->control); |
| |
| /* disable MDM9x30 quirk */ |
| if (le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) { |
| qmi_wwan_change_dtr(dev, false); |
| qmi_wwan_manage_power(dev, 0); |
| } |
| |
| /* allow user to unbind using either control or data */ |
| if (intf == info->control) |
| other = info->data; |
| else |
| other = info->control; |
| |
| /* only if not shared */ |
| if (other && intf != other) { |
| usb_set_intfdata(other, NULL); |
| usb_driver_release_interface(driver, other); |
| } |
| |
| info->subdriver = NULL; |
| info->data = NULL; |
| info->control = NULL; |
| } |
| |
| /* suspend/resume wrappers calling both usbnet and the cdc-wdm |
| * subdriver if present. |
| * |
| * NOTE: cdc-wdm also supports pre/post_reset, but we cannot provide |
| * wrappers for those without adding usbnet reset support first. |
| */ |
| static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message) |
| { |
| struct usbnet *dev = usb_get_intfdata(intf); |
| struct qmi_wwan_state *info = (void *)&dev->data; |
| int ret; |
| |
| /* Both usbnet_suspend() and subdriver->suspend() MUST return 0 |
| * in system sleep context, otherwise, the resume callback has |
| * to recover device from previous suspend failure. |
| */ |
| ret = usbnet_suspend(intf, message); |
| if (ret < 0) |
| goto err; |
| |
| if (intf == info->control && info->subdriver && |
| info->subdriver->suspend) |
| ret = info->subdriver->suspend(intf, message); |
| if (ret < 0) |
| usbnet_resume(intf); |
| err: |
| return ret; |
| } |
| |
| static int qmi_wwan_resume(struct usb_interface *intf) |
| { |
| struct usbnet *dev = usb_get_intfdata(intf); |
| struct qmi_wwan_state *info = (void *)&dev->data; |
| int ret = 0; |
| bool callsub = (intf == info->control && info->subdriver && |
| info->subdriver->resume); |
| |
| if (callsub) |
| ret = info->subdriver->resume(intf); |
| if (ret < 0) |
| goto err; |
| ret = usbnet_resume(intf); |
| if (ret < 0 && callsub) |
| info->subdriver->suspend(intf, PMSG_SUSPEND); |
| err: |
| return ret; |
| } |
| |
| static const struct driver_info qmi_wwan_info = { |
| .description = "WWAN/QMI device", |
| .flags = FLAG_WWAN, |
| .bind = qmi_wwan_bind, |
| .unbind = qmi_wwan_unbind, |
| .manage_power = qmi_wwan_manage_power, |
| .rx_fixup = qmi_wwan_rx_fixup, |
| }; |
| |
| static const struct driver_info qmi_wwan_info_quirk_dtr = { |
| .description = "WWAN/QMI device", |
| .flags = FLAG_WWAN, |
| .bind = qmi_wwan_bind, |
| .unbind = qmi_wwan_unbind, |
| .manage_power = qmi_wwan_manage_power, |
| .rx_fixup = qmi_wwan_rx_fixup, |
| .data = QMI_WWAN_QUIRK_DTR, |
| }; |
| |
| #define HUAWEI_VENDOR_ID 0x12D1 |
| |
| /* map QMI/wwan function by a fixed interface number */ |
| #define QMI_FIXED_INTF(vend, prod, num) \ |
| USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \ |
| .driver_info = (unsigned long)&qmi_wwan_info |
| |
| /* devices requiring "set DTR" quirk */ |
| #define QMI_QUIRK_SET_DTR(vend, prod, num) \ |
| USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \ |
| .driver_info = (unsigned long)&qmi_wwan_info_quirk_dtr |
| |
| /* Gobi 1000 QMI/wwan interface number is 3 according to qcserial */ |
| #define QMI_GOBI1K_DEVICE(vend, prod) \ |
| QMI_FIXED_INTF(vend, prod, 3) |
| |
| /* Gobi 2000/3000 QMI/wwan interface number is 0 according to qcserial */ |
| #define QMI_GOBI_DEVICE(vend, prod) \ |
| QMI_FIXED_INTF(vend, prod, 0) |
| |
| static const struct usb_device_id products[] = { |
| /* 1. CDC ECM like devices match on the control interface */ |
| { /* Huawei E392, E398 and possibly others sharing both device id and more... */ |
| USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 9), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* Vodafone/Huawei K5005 (12d1:14c8) and similar modems */ |
| USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 57), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* HUAWEI_INTERFACE_NDIS_CONTROL_QUALCOMM */ |
| USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x69), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* Motorola Mapphone devices with MDM6600 */ |
| USB_VENDOR_AND_INTERFACE_INFO(0x22b8, USB_CLASS_VENDOR_SPEC, 0xfb, 0xff), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| |
| /* 2. Combined interface devices matching on class+protocol */ |
| { /* Huawei E367 and possibly others in "Windows mode" */ |
| USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 7), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* Huawei E392, E398 and possibly others in "Windows mode" */ |
| USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 17), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* HUAWEI_NDIS_SINGLE_INTERFACE_VDF */ |
| USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x37), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* HUAWEI_INTERFACE_NDIS_HW_QUALCOMM */ |
| USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x67), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* Pantech UML290, P4200 and more */ |
| USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf0, 0xff), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* Pantech UML290 - newer firmware */ |
| USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf1, 0xff), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* Novatel USB551L and MC551 */ |
| USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0xb001, |
| USB_CLASS_COMM, |
| USB_CDC_SUBCLASS_ETHERNET, |
| USB_CDC_PROTO_NONE), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* Novatel E362 */ |
| USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0x9010, |
| USB_CLASS_COMM, |
| USB_CDC_SUBCLASS_ETHERNET, |
| USB_CDC_PROTO_NONE), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* Novatel Expedite E371 */ |
| USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0x9011, |
| USB_CLASS_COMM, |
| USB_CDC_SUBCLASS_ETHERNET, |
| USB_CDC_PROTO_NONE), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* Dell Wireless 5800 (Novatel E362) */ |
| USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x8195, |
| USB_CLASS_COMM, |
| USB_CDC_SUBCLASS_ETHERNET, |
| USB_CDC_PROTO_NONE), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* Dell Wireless 5800 V2 (Novatel E362) */ |
| USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x8196, |
| USB_CLASS_COMM, |
| USB_CDC_SUBCLASS_ETHERNET, |
| USB_CDC_PROTO_NONE), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* Dell Wireless 5804 (Novatel E371) */ |
| USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x819b, |
| USB_CLASS_COMM, |
| USB_CDC_SUBCLASS_ETHERNET, |
| USB_CDC_PROTO_NONE), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* ADU960S */ |
| USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, |
| USB_CLASS_COMM, |
| USB_CDC_SUBCLASS_ETHERNET, |
| USB_CDC_PROTO_NONE), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* HP lt2523 (Novatel E371) */ |
| USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x421d, |
| USB_CLASS_COMM, |
| USB_CDC_SUBCLASS_ETHERNET, |
| USB_CDC_PROTO_NONE), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| { /* HP lt4112 LTE/HSPA+ Gobi 4G Module (Huawei me906e) */ |
| USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7), |
| .driver_info = (unsigned long)&qmi_wwan_info, |
| }, |
| |
| /* 3. Combined interface devices matching on interface number */ |
| {QMI_FIXED_INTF(0x0408, 0xea42, 4)}, /* Yota / Megafon M100-1 */ |
| {QMI_FIXED_INTF(0x05c6, 0x6001, 3)}, /* 4G LTE usb-modem U901 */ |
| {QMI_FIXED_INTF(0x05c6, 0x7000, 0)}, |
| {QMI_FIXED_INTF(0x05c6, 0x7001, 1)}, |
| {QMI_FIXED_INTF(0x05c6, 0x7002, 1)}, |
| {QMI_FIXED_INTF(0x05c6, 0x7101, 1)}, |
| {QMI_FIXED_INTF(0x05c6, 0x7101, 2)}, |
| {QMI_FIXED_INTF(0x05c6, 0x7101, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x7102, 1)}, |
| {QMI_FIXED_INTF(0x05c6, 0x7102, 2)}, |
| {QMI_FIXED_INTF(0x05c6, 0x7102, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x8000, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x8001, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9000, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9003, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9005, 2)}, |
| {QMI_FIXED_INTF(0x05c6, 0x900a, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x900b, 2)}, |
| {QMI_FIXED_INTF(0x05c6, 0x900c, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x900c, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x900c, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x900d, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x900f, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x900f, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x900f, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9010, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9010, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9011, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9011, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9021, 1)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9022, 2)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9025, 4)}, /* Alcatel-sbell ASB TL131 TDD LTE (China Mobile) */ |
| {QMI_FIXED_INTF(0x05c6, 0x9026, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x902e, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9031, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9032, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9033, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9033, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9033, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9033, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9034, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9034, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9034, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9034, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9034, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9035, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9036, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9037, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9038, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x903b, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x903c, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x903d, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x903e, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9043, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9046, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9046, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9046, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9047, 2)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9047, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9047, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9048, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9048, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9048, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9048, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9048, 8)}, |
| {QMI_FIXED_INTF(0x05c6, 0x904c, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x904c, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x904c, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x904c, 8)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9050, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9052, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9053, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9053, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9054, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9054, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9055, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9055, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9055, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9055, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9055, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9056, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9062, 2)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9062, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9062, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9062, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9062, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9062, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9062, 8)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9062, 9)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9064, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9065, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9065, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9066, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9066, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9067, 1)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9068, 2)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9068, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9068, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9068, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9068, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9068, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9069, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9069, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9069, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9069, 8)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9070, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9070, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9075, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9076, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9076, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9076, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9076, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9076, 8)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9077, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9077, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9077, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9077, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9078, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9079, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9079, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9079, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9079, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9079, 8)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9080, 5)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9080, 6)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9080, 7)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9080, 8)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9083, 3)}, |
| {QMI_FIXED_INTF(0x05c6, 0x9084, 4)}, |
| {QMI_FIXED_INTF(0x05c6, 0x920d, 0)}, |
| {QMI_FIXED_INTF(0x05c6, 0x920d, 5)}, |
| {QMI_FIXED_INTF(0x0846, 0x68a2, 8)}, |
| {QMI_FIXED_INTF(0x12d1, 0x140c, 1)}, /* Huawei E173 */ |
| {QMI_FIXED_INTF(0x12d1, 0x14ac, 1)}, /* Huawei E1820 */ |
| {QMI_FIXED_INTF(0x16d8, 0x6003, 0)}, /* CMOTech 6003 */ |
| {QMI_FIXED_INTF(0x16d8, 0x6007, 0)}, /* CMOTech CHE-628S */ |
| {QMI_FIXED_INTF(0x16d8, 0x6008, 0)}, /* CMOTech CMU-301 */ |
| {QMI_FIXED_INTF(0x16d8, 0x6280, 0)}, /* CMOTech CHU-628 */ |
| {QMI_FIXED_INTF(0x16d8, 0x7001, 0)}, /* CMOTech CHU-720S */ |
| {QMI_FIXED_INTF(0x16d8, 0x7002, 0)}, /* CMOTech 7002 */ |
| {QMI_FIXED_INTF(0x16d8, 0x7003, 4)}, /* CMOTech CHU-629K */ |
| {QMI_FIXED_INTF(0x16d8, 0x7004, 3)}, /* CMOTech 7004 */ |
| {QMI_FIXED_INTF(0x16d8, 0x7006, 5)}, /* CMOTech CGU-629 */ |
| {QMI_FIXED_INTF(0x16d8, 0x700a, 4)}, /* CMOTech CHU-629S */ |
| {QMI_FIXED_INTF(0x16d8, 0x7211, 0)}, /* CMOTech CHU-720I */ |
| {QMI_FIXED_INTF(0x16d8, 0x7212, 0)}, /* CMOTech 7212 */ |
| {QMI_FIXED_INTF(0x16d8, 0x7213, 0)}, /* CMOTech 7213 */ |
| {QMI_FIXED_INTF(0x16d8, 0x7251, 1)}, /* CMOTech 7251 */ |
| {QMI_FIXED_INTF(0x16d8, 0x7252, 1)}, /* CMOTech 7252 */ |
| {QMI_FIXED_INTF(0x16d8, 0x7253, 1)}, /* CMOTech 7253 */ |
| {QMI_FIXED_INTF(0x19d2, 0x0002, 1)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0012, 1)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0017, 3)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0019, 3)}, /* ONDA MT689DC */ |
| {QMI_FIXED_INTF(0x19d2, 0x0021, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0025, 1)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0031, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0042, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0049, 5)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0052, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0055, 1)}, /* ZTE (Vodafone) K3520-Z */ |
| {QMI_FIXED_INTF(0x19d2, 0x0058, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0063, 4)}, /* ZTE (Vodafone) K3565-Z */ |
| {QMI_FIXED_INTF(0x19d2, 0x0104, 4)}, /* ZTE (Vodafone) K4505-Z */ |
| {QMI_FIXED_INTF(0x19d2, 0x0113, 5)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0118, 5)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0121, 5)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0123, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0124, 5)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0125, 6)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0126, 5)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0130, 1)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0133, 3)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0141, 5)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0157, 5)}, /* ZTE MF683 */ |
| {QMI_FIXED_INTF(0x19d2, 0x0158, 3)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0167, 4)}, /* ZTE MF820D */ |
| {QMI_FIXED_INTF(0x19d2, 0x0168, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0176, 3)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0178, 3)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0191, 4)}, /* ZTE EuFi890 */ |
| {QMI_FIXED_INTF(0x19d2, 0x0199, 1)}, /* ZTE MF820S */ |
| {QMI_FIXED_INTF(0x19d2, 0x0200, 1)}, |
| {QMI_FIXED_INTF(0x19d2, 0x0257, 3)}, /* ZTE MF821 */ |
| {QMI_FIXED_INTF(0x19d2, 0x0265, 4)}, /* ONDA MT8205 4G LTE */ |
| {QMI_FIXED_INTF(0x19d2, 0x0284, 4)}, /* ZTE MF880 */ |
| {QMI_FIXED_INTF(0x19d2, 0x0326, 4)}, /* ZTE MF821D */ |
| {QMI_FIXED_INTF(0x19d2, 0x0412, 4)}, /* Telewell TW-LTE 4G */ |
| {QMI_FIXED_INTF(0x19d2, 0x1008, 4)}, /* ZTE (Vodafone) K3570-Z */ |
| {QMI_FIXED_INTF(0x19d2, 0x1010, 4)}, /* ZTE (Vodafone) K3571-Z */ |
| {QMI_FIXED_INTF(0x19d2, 0x1012, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x1018, 3)}, /* ZTE (Vodafone) K5006-Z */ |
| {QMI_FIXED_INTF(0x19d2, 0x1021, 2)}, |
| {QMI_FIXED_INTF(0x19d2, 0x1245, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x1247, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x1252, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x1254, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x1255, 3)}, |
| {QMI_FIXED_INTF(0x19d2, 0x1255, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x1256, 4)}, |
| {QMI_FIXED_INTF(0x19d2, 0x1270, 5)}, /* ZTE MF667 */ |
| {QMI_FIXED_INTF(0x19d2, 0x1401, 2)}, |
| {QMI_FIXED_INTF(0x19d2, 0x1402, 2)}, /* ZTE MF60 */ |
| {QMI_FIXED_INTF(0x19d2, 0x1424, 2)}, |
| {QMI_FIXED_INTF(0x19d2, 0x1425, 2)}, |
| {QMI_FIXED_INTF(0x19d2, 0x1426, 2)}, /* ZTE MF91 */ |
| {QMI_FIXED_INTF(0x19d2, 0x1428, 2)}, /* Telewell TW-LTE 4G v2 */ |
| {QMI_FIXED_INTF(0x19d2, 0x2002, 4)}, /* ZTE (Vodafone) K3765-Z */ |
| {QMI_FIXED_INTF(0x2001, 0x7e19, 4)}, /* D-Link DWM-221 B1 */ |
| {QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)}, /* Sierra Wireless MC7700 */ |
| {QMI_FIXED_INTF(0x114f, 0x68a2, 8)}, /* Sierra Wireless MC7750 */ |
| {QMI_FIXED_INTF(0x1199, 0x68a2, 8)}, /* Sierra Wireless MC7710 in QMI mode */ |
| {QMI_FIXED_INTF(0x1199, 0x68a2, 19)}, /* Sierra Wireless MC7710 in QMI mode */ |
| {QMI_FIXED_INTF(0x1199, 0x68c0, 8)}, /* Sierra Wireless MC7304/MC7354 */ |
| {QMI_FIXED_INTF(0x1199, 0x68c0, 10)}, /* Sierra Wireless MC7304/MC7354 */ |
| {QMI_FIXED_INTF(0x1199, 0x901c, 8)}, /* Sierra Wireless EM7700 */ |
| {QMI_FIXED_INTF(0x1199, 0x901f, 8)}, /* Sierra Wireless EM7355 */ |
| {QMI_FIXED_INTF(0x1199, 0x9041, 8)}, /* Sierra Wireless MC7305/MC7355 */ |
| {QMI_FIXED_INTF(0x1199, 0x9041, 10)}, /* Sierra Wireless MC7305/MC7355 */ |
| {QMI_FIXED_INTF(0x1199, 0x9051, 8)}, /* Netgear AirCard 340U */ |
| {QMI_FIXED_INTF(0x1199, 0x9053, 8)}, /* Sierra Wireless Modem */ |
| {QMI_FIXED_INTF(0x1199, 0x9054, 8)}, /* Sierra Wireless Modem */ |
| {QMI_FIXED_INTF(0x1199, 0x9055, 8)}, /* Netgear AirCard 341U */ |
| {QMI_FIXED_INTF(0x1199, 0x9056, 8)}, /* Sierra Wireless Modem */ |
| {QMI_FIXED_INTF(0x1199, 0x9057, 8)}, |
| {QMI_FIXED_INTF(0x1199, 0x9061, 8)}, /* Sierra Wireless Modem */ |
| {QMI_FIXED_INTF(0x1199, 0x9063, 8)}, /* Sierra Wireless EM7305 */ |
| {QMI_FIXED_INTF(0x1199, 0x9063, 10)}, /* Sierra Wireless EM7305 */ |
| {QMI_FIXED_INTF(0x1199, 0x9071, 8)}, /* Sierra Wireless MC74xx */ |
| {QMI_FIXED_INTF(0x1199, 0x9071, 10)}, /* Sierra Wireless MC74xx */ |
| {QMI_FIXED_INTF(0x1199, 0x9079, 8)}, /* Sierra Wireless EM74xx */ |
| {QMI_FIXED_INTF(0x1199, 0x9079, 10)}, /* Sierra Wireless EM74xx */ |
| {QMI_FIXED_INTF(0x1199, 0x907b, 8)}, /* Sierra Wireless EM74xx */ |
| {QMI_FIXED_INTF(0x1199, 0x907b, 10)}, /* Sierra Wireless EM74xx */ |
| {QMI_FIXED_INTF(0x1bbb, 0x011e, 4)}, /* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */ |
| {QMI_FIXED_INTF(0x1bbb, 0x0203, 2)}, /* Alcatel L800MA */ |
| {QMI_FIXED_INTF(0x2357, 0x0201, 4)}, /* TP-LINK HSUPA Modem MA180 */ |
| {QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */ |
| {QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)}, /* Telit LE922A */ |
| {QMI_FIXED_INTF(0x1bc7, 0x1100, 3)}, /* Telit ME910 */ |
| {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */ |
| {QMI_QUIRK_SET_DTR(0x1bc7, 0x1201, 2)}, /* Telit LE920, LE920A4 */ |
| {QMI_FIXED_INTF(0x1c9e, 0x9801, 3)}, /* Telewell TW-3G HSPA+ */ |
| {QMI_FIXED_INTF(0x1c9e, 0x9803, 4)}, /* Telewell TW-3G HSPA+ */ |
| {QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)}, /* XS Stick W100-2 from 4G Systems */ |
| {QMI_FIXED_INTF(0x0b3c, 0xc000, 4)}, /* Olivetti Olicard 100 */ |
| {QMI_FIXED_INTF(0x0b3c, 0xc001, 4)}, /* Olivetti Olicard 120 */ |
| {QMI_FIXED_INTF(0x0b3c, 0xc002, 4)}, /* Olivetti Olicard 140 */ |
| {QMI_FIXED_INTF(0x0b3c, 0xc004, 6)}, /* Olivetti Olicard 155 */ |
| {QMI_FIXED_INTF(0x0b3c, 0xc005, 6)}, /* Olivetti Olicard 200 */ |
| {QMI_FIXED_INTF(0x0b3c, 0xc00a, 6)}, /* Olivetti Olicard 160 */ |
| {QMI_FIXED_INTF(0x0b3c, 0xc00b, 4)}, /* Olivetti Olicard 500 */ |
| {QMI_FIXED_INTF(0x1e2d, 0x0060, 4)}, /* Cinterion PLxx */ |
| {QMI_FIXED_INTF(0x1e2d, 0x0053, 4)}, /* Cinterion PHxx,PXxx */ |
| {QMI_FIXED_INTF(0x1e2d, 0x0082, 4)}, /* Cinterion PHxx,PXxx (2 RmNet) */ |
| {QMI_FIXED_INTF(0x1e2d, 0x0082, 5)}, /* Cinterion PHxx,PXxx (2 RmNet) */ |
| {QMI_FIXED_INTF(0x1e2d, 0x0083, 4)}, /* Cinterion PHxx,PXxx (1 RmNet + USB Audio)*/ |
| {QMI_FIXED_INTF(0x413c, 0x81a2, 8)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */ |
| {QMI_FIXED_INTF(0x413c, 0x81a3, 8)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */ |
| {QMI_FIXED_INTF(0x413c, 0x81a4, 8)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */ |
| {QMI_FIXED_INTF(0x413c, 0x81a8, 8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */ |
| {QMI_FIXED_INTF(0x413c, 0x81a9, 8)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */ |
| {QMI_FIXED_INTF(0x413c, 0x81b1, 8)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */ |
| {QMI_FIXED_INTF(0x413c, 0x81b3, 8)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */ |
| {QMI_FIXED_INTF(0x413c, 0x81b6, 8)}, /* Dell Wireless 5811e */ |
| {QMI_FIXED_INTF(0x413c, 0x81b6, 10)}, /* Dell Wireless 5811e */ |
| {QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */ |
| {QMI_FIXED_INTF(0x22de, 0x9061, 3)}, /* WeTelecom WPD-600N */ |
| {QMI_FIXED_INTF(0x1e0e, 0x9001, 5)}, /* SIMCom 7230E */ |
| {QMI_QUIRK_SET_DTR(0x2c7c, 0x0125, 4)}, /* Quectel EC25, EC20 R2.0 Mini PCIe */ |
| {QMI_QUIRK_SET_DTR(0x2c7c, 0x0121, 4)}, /* Quectel EC21 Mini PCIe */ |
| |
| /* 4. Gobi 1000 devices */ |
| {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ |
| {QMI_GOBI1K_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */ |
| {QMI_GOBI1K_DEVICE(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x413c, 0x8172)}, /* Dell Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x1410, 0xa001)}, /* Novatel/Verizon USB-1000 */ |
| {QMI_GOBI1K_DEVICE(0x1410, 0xa002)}, /* Novatel Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x1410, 0xa003)}, /* Novatel Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x1410, 0xa004)}, /* Novatel Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x1410, 0xa005)}, /* Novatel Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x1410, 0xa006)}, /* Novatel Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x1410, 0xa007)}, /* Novatel Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x0b05, 0x1776)}, /* Asus Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x05c6, 0x9001)}, /* Generic Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x05c6, 0x9002)}, /* Generic Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x05c6, 0x9202)}, /* Generic Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x05c6, 0x9203)}, /* Generic Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x05c6, 0x9222)}, /* Generic Gobi Modem device */ |
| {QMI_GOBI1K_DEVICE(0x05c6, 0x9009)}, /* Generic Gobi Modem device */ |
| |
| /* 5. Gobi 2000 and 3000 devices */ |
| {QMI_GOBI_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */ |
| {QMI_GOBI_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */ |
| {QMI_GOBI_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */ |
| {QMI_GOBI_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */ |
| {QMI_GOBI_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */ |
| {QMI_GOBI_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */ |
| {QMI_GOBI_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */ |
| {QMI_FIXED_INTF(0x05c6, 0x9215, 4)}, /* Quectel EC20 Mini PCIe */ |
| {QMI_GOBI_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */ |
| {QMI_GOBI_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */ |
| {QMI_GOBI_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */ |
| {QMI_GOBI_DEVICE(0x0af0, 0x8120)}, /* Option GTM681W */ |
| {QMI_GOBI_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */ |
| {QMI_GOBI_DEVICE(0x1199, 0x68a9)}, /* Sierra Wireless Modem */ |
| {QMI_GOBI_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {QMI_GOBI_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {QMI_GOBI_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {QMI_GOBI_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {QMI_GOBI_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {QMI_GOBI_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {QMI_GOBI_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {QMI_GOBI_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {QMI_GOBI_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {QMI_GOBI_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {QMI_GOBI_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */ |
| {QMI_GOBI_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */ |
| {QMI_GOBI_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */ |
| {QMI_GOBI_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */ |
| {QMI_GOBI_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Mobile Broadband Module */ |
| {QMI_GOBI_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */ |
| {QMI_GOBI_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */ |
| {QMI_GOBI_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */ |
| {QMI_GOBI_DEVICE(0x12d1, 0x14f1)}, /* Sony Gobi 3000 Composite */ |
| {QMI_GOBI_DEVICE(0x1410, 0xa021)}, /* Foxconn Gobi 3000 Modem device (Novatel E396) */ |
| |
| { } /* END */ |
| }; |
| MODULE_DEVICE_TABLE(usb, products); |
| |
| static bool quectel_ec20_detected(struct usb_interface *intf) |
| { |
| struct usb_device *dev = interface_to_usbdev(intf); |
| |
| if (dev->actconfig && |
| le16_to_cpu(dev->descriptor.idVendor) == 0x05c6 && |
| le16_to_cpu(dev->descriptor.idProduct) == 0x9215 && |
| dev->actconfig->desc.bNumInterfaces == 5) |
| return true; |
| |
| return false; |
| } |
| |
| static int qmi_wwan_probe(struct usb_interface *intf, |
| const struct usb_device_id *prod) |
| { |
| struct usb_device_id *id = (struct usb_device_id *)prod; |
| struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc; |
| |
| /* Workaround to enable dynamic IDs. This disables usbnet |
| * blacklisting functionality. Which, if required, can be |
| * reimplemented here by using a magic "blacklist" value |
| * instead of 0 in the static device id table |
| */ |
| if (!id->driver_info) { |
| dev_dbg(&intf->dev, "setting defaults for dynamic device id\n"); |
| id->driver_info = (unsigned long)&qmi_wwan_info; |
| } |
| |
| /* Quectel EC20 quirk where we've QMI on interface 4 instead of 0 */ |
| if (quectel_ec20_detected(intf) && desc->bInterfaceNumber == 0) { |
| dev_dbg(&intf->dev, "Quectel EC20 quirk, skipping interface 0\n"); |
| return -ENODEV; |
| } |
| |
| return usbnet_probe(intf, id); |
| } |
| |
| static void qmi_wwan_disconnect(struct usb_interface *intf) |
| { |
| struct usbnet *dev = usb_get_intfdata(intf); |
| struct qmi_wwan_state *info = (void *)&dev->data; |
| struct list_head *iter; |
| struct net_device *ldev; |
| |
| if (info->flags & QMI_WWAN_FLAG_MUX) { |
| if (!rtnl_trylock()) { |
| restart_syscall(); |
| return; |
| } |
| rcu_read_lock(); |
| netdev_for_each_upper_dev_rcu(dev->net, ldev, iter) |
| qmimux_unregister_device(ldev); |
| rcu_read_unlock(); |
| rtnl_unlock(); |
| info->flags &= ~QMI_WWAN_FLAG_MUX; |
| } |
| usbnet_disconnect(intf); |
| } |
| |
| static struct usb_driver qmi_wwan_driver = { |
| .name = "qmi_wwan", |
| .id_table = products, |
| .probe = qmi_wwan_probe, |
| .disconnect = qmi_wwan_disconnect, |
| .suspend = qmi_wwan_suspend, |
| .resume = qmi_wwan_resume, |
| .reset_resume = qmi_wwan_resume, |
| .supports_autosuspend = 1, |
| .disable_hub_initiated_lpm = 1, |
| }; |
| |
| module_usb_driver(qmi_wwan_driver); |
| |
| MODULE_AUTHOR("Bjørn Mork <bjorn@mork.no>"); |
| MODULE_DESCRIPTION("Qualcomm MSM Interface (QMI) WWAN driver"); |
| MODULE_LICENSE("GPL"); |
