/* * Copyright (c) 2012 Bjørn Mork * * 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 #include #include #include #include #include #include #include #include #include #include #include #include /* 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; struct pcpu_sw_netstats __percpu *stats64; }; 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; netdev_tx_t ret; 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; ret = dev_queue_xmit(skb); if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) { struct pcpu_sw_netstats *stats64 = this_cpu_ptr(priv->stats64); u64_stats_update_begin(&stats64->syncp); stats64->tx_packets++; stats64->tx_bytes += len; u64_stats_update_end(&stats64->syncp); } else { dev->stats.tx_dropped++; } return ret; } static void qmimux_get_stats64(struct net_device *net, struct rtnl_link_stats64 *stats) { struct qmimux_priv *priv = netdev_priv(net); unsigned int start; int cpu; netdev_stats_to_stats64(stats, &net->stats); for_each_possible_cpu(cpu) { struct pcpu_sw_netstats *stats64; u64 rx_packets, rx_bytes; u64 tx_packets, tx_bytes; stats64 = per_cpu_ptr(priv->stats64, cpu); do { start = u64_stats_fetch_begin_irq(&stats64->syncp); rx_packets = stats64->rx_packets; rx_bytes = stats64->rx_bytes; tx_packets = stats64->tx_packets; tx_bytes = stats64->tx_bytes; } while (u64_stats_fetch_retry_irq(&stats64->syncp, start)); stats->rx_packets += rx_packets; stats->rx_bytes += rx_bytes; stats->tx_packets += tx_packets; stats->tx_bytes += tx_bytes; } } static const struct net_device_ops qmimux_netdev_ops = { .ndo_open = qmimux_open, .ndo_stop = qmimux_stop, .ndo_start_xmit = qmimux_start_xmit, .ndo_get_stats64 = qmimux_get_stats64, }; 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->mtu = 1500; 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 = 0, pad_len, pkt_len; struct qmimux_hdr *hdr; struct net_device *net; struct sk_buff *skbn; u8 qmimux_hdr_sz = sizeof(*hdr); while (offset + qmimux_hdr_sz < skb->len) { hdr = (struct qmimux_hdr *)(skb->data + offset); len = be16_to_cpu(hdr->pkt_len); /* drop the packet, bogus length */ if (offset + len + qmimux_hdr_sz > skb->len) return 0; /* control packet, we do not know what to do */ if (hdr->pad & 0x80) goto skip; /* extract padding length and check for valid length info */ pad_len = hdr->pad & 0x3f; if (len == 0 || pad_len >= len) goto skip; pkt_len = len - pad_len; net = qmimux_find_dev(dev, hdr->mux_id); if (!net) goto skip; skbn = netdev_alloc_skb(net, pkt_len); if (!skbn) return 0; skbn->dev = net; switch (skb->data[offset + qmimux_hdr_sz] & 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 + qmimux_hdr_sz, pkt_len); if (netif_rx(skbn) != NET_RX_SUCCESS) { net->stats.rx_errors++; return 0; } else { struct pcpu_sw_netstats *stats64; struct qmimux_priv *priv = netdev_priv(net); stats64 = this_cpu_ptr(priv->stats64); u64_stats_update_begin(&stats64->syncp); stats64->rx_packets++; stats64->rx_bytes += pkt_len; u64_stats_update_end(&stats64->syncp); } skip: offset += len + qmimux_hdr_sz; } 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; priv->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); if (!priv->stats64) { err = -ENOBUFS; goto out_free_newdev; } 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, NULL); 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 list_head *head) { struct qmimux_priv *priv = netdev_priv(dev); struct net_device *real_dev = priv->real_dev; free_percpu(priv->stats64); netdev_upper_dev_unlink(real_dev, dev); unregister_netdevice_queue(dev, head); /* 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; set_bit(EVENT_NO_IP_ALIGN, &dev->flags); netdev_dbg(net, "mode: raw IP\n"); } else if (!net->header_ops) { /* don't bother if already set */ ether_setup(net); /* Restoring min/max mtu values set originally by usbnet */ net->min_mtu = 0; net->max_mtu = ETH_MAX_MTU; clear_bit(EVENT_NO_IP_ALIGN, &dev->flags); 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 - 254] for compatibility with ip(8) and the rmnet driver */ if (mux_id < 1 || mux_id > 254) 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; } 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(); 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, NULL); 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_reset_mac_header(skb); 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 && cdc_ether->wMaxSegmentSize) { 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 | FLAG_SEND_ZLP, .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 | FLAG_SEND_ZLP, .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) /* Many devices have QMI and DIAG functions which are distinguishable * from other vendor specific functions by class, subclass and * protocol all being 0xff. The DIAG function has exactly 2 endpoints * and is silently rejected when probed. * * This makes it possible to match dynamically numbered QMI functions * as seen on e.g. many Quectel modems. */ #define QMI_MATCH_FF_FF_FF(vend, prod) \ USB_DEVICE_AND_INTERFACE_INFO(vend, prod, USB_CLASS_VENDOR_SPEC, \ USB_SUBCLASS_VENDOR_SPEC, 0xff), \ .driver_info = (unsigned long)&qmi_wwan_info_quirk_dtr 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, }, {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0125)}, /* Quectel EC25, EC20 R2.0 Mini PCIe */ {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0306)}, /* Quectel EP06/EG06/EM06 */ {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0512)}, /* Quectel EG12/EM12 */ {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0620)}, /* Quectel EM160R-GL */ {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0800)}, /* Quectel RM500Q-GL */ /* 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_QUIRK_SET_DTR(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, 0x90b2, 3)}, /* ublox R410M */ {QMI_FIXED_INTF(0x05c6, 0x920d, 0)}, {QMI_FIXED_INTF(0x05c6, 0x920d, 5)}, {QMI_QUIRK_SET_DTR(0x05c6, 0x9625, 4)}, /* YUGA CLM920-NC5 */ {QMI_FIXED_INTF(0x0846, 0x68a2, 8)}, {QMI_FIXED_INTF(0x0846, 0x68d3, 8)}, /* Netgear Aircard 779S */ {QMI_FIXED_INTF(0x12d1, 0x140c, 1)}, /* Huawei E173 */ {QMI_FIXED_INTF(0x12d1, 0x14ac, 1)}, /* Huawei E1820 */ {QMI_FIXED_INTF(0x1435, 0x0918, 3)}, /* Wistron NeWeb D16Q1 */ {QMI_FIXED_INTF(0x1435, 0x0918, 4)}, /* Wistron NeWeb D16Q1 */ {QMI_FIXED_INTF(0x1435, 0x0918, 5)}, /* Wistron NeWeb D16Q1 */ {QMI_FIXED_INTF(0x1435, 0x3185, 4)}, /* Wistron NeWeb M18Q5 */ {QMI_FIXED_INTF(0x1435, 0xd111, 4)}, /* M9615A DM11-1 D51QC */ {QMI_FIXED_INTF(0x1435, 0xd181, 3)}, /* Wistron NeWeb D18Q1 */ {QMI_FIXED_INTF(0x1435, 0xd181, 4)}, /* Wistron NeWeb D18Q1 */ {QMI_FIXED_INTF(0x1435, 0xd181, 5)}, /* Wistron NeWeb D18Q1 */ {QMI_FIXED_INTF(0x1435, 0xd182, 4)}, /* Wistron NeWeb D18 */ {QMI_FIXED_INTF(0x1435, 0xd182, 5)}, /* Wistron NeWeb D18 */ {QMI_FIXED_INTF(0x1435, 0xd191, 4)}, /* Wistron NeWeb D19Q1 */ {QMI_QUIRK_SET_DTR(0x1508, 0x1001, 4)}, /* Fibocom NL668 series */ {QMI_FIXED_INTF(0x1690, 0x7588, 4)}, /* ASKEY WWHC050 */ {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, 0x0396, 3)}, /* ZTE ZM8620 */ {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, 0x1275, 3)}, /* ZTE P685M */ {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, 0x1432, 3)}, /* ZTE ME3620 */ {QMI_FIXED_INTF(0x19d2, 0x2002, 4)}, /* ZTE (Vodafone) K3765-Z */ {QMI_FIXED_INTF(0x2001, 0x7e16, 3)}, /* D-Link DWM-221 */ {QMI_FIXED_INTF(0x2001, 0x7e19, 4)}, /* D-Link DWM-221 B1 */ {QMI_FIXED_INTF(0x2001, 0x7e35, 4)}, /* D-Link DWM-222 */ {QMI_FIXED_INTF(0x2001, 0x7e3d, 4)}, /* D-Link DWM-222 A2 */ {QMI_FIXED_INTF(0x2020, 0x2031, 4)}, /* Olicard 600 */ {QMI_FIXED_INTF(0x2020, 0x2033, 4)}, /* BroadMobi BM806U */ {QMI_FIXED_INTF(0x2020, 0x2060, 4)}, /* BroadMobi BM818 */ {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_QUIRK_SET_DTR(0x1199, 0x68c0, 8)}, /* Sierra Wireless MC7304/MC7354, WP76xx */ {QMI_QUIRK_SET_DTR(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_QUIRK_SET_DTR(0x1199, 0x9071, 8)}, /* Sierra Wireless MC74xx */ {QMI_QUIRK_SET_DTR(0x1199, 0x9071, 10)},/* Sierra Wireless MC74xx */ {QMI_QUIRK_SET_DTR(0x1199, 0x9079, 8)}, /* Sierra Wireless EM74xx */ {QMI_QUIRK_SET_DTR(0x1199, 0x9079, 10)},/* Sierra Wireless EM74xx */ {QMI_QUIRK_SET_DTR(0x1199, 0x907b, 8)}, /* Sierra Wireless EM74xx */ {QMI_QUIRK_SET_DTR(0x1199, 0x907b, 10)},/* Sierra Wireless EM74xx */ {QMI_QUIRK_SET_DTR(0x1199, 0x9091, 8)}, /* Sierra Wireless EM7565 */ {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, 0x1031, 3)}, /* Telit LE910C1-EUX */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)}, /* Telit LE922A */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1050, 2)}, /* Telit FN980 */ {QMI_FIXED_INTF(0x1bc7, 0x1100, 3)}, /* Telit ME910 */ {QMI_FIXED_INTF(0x1bc7, 0x1101, 3)}, /* Telit ME910 dual modem */ {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1201, 2)}, /* Telit LE920, LE920A4 */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1230, 2)}, /* Telit LE910Cx */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1260, 2)}, /* Telit LE910Cx */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1261, 2)}, /* Telit LE910Cx */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1900, 1)}, /* Telit LN940 series */ {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_QUIRK_SET_DTR(0x1e2d, 0x006f, 8)}, /* Cinterion PLS83/PLS63 */ {QMI_FIXED_INTF(0x1e2d, 0x0053, 4)}, /* Cinterion PHxx,PXxx */ {QMI_FIXED_INTF(0x1e2d, 0x0063, 10)}, /* Cinterion ALASxx (1 RmNet) */ {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_QUIRK_SET_DTR(0x1e2d, 0x00b0, 4)}, /* Cinterion CLS8 */ {QMI_FIXED_INTF(0x1e2d, 0x00b7, 0)}, /* Cinterion MV31 RmNet */ {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(0x413c, 0x81cc, 8)}, /* Dell Wireless 5816e */ {QMI_FIXED_INTF(0x413c, 0x81d7, 0)}, /* Dell Wireless 5821e */ {QMI_FIXED_INTF(0x413c, 0x81d7, 1)}, /* Dell Wireless 5821e preproduction config */ {QMI_FIXED_INTF(0x413c, 0x81e0, 0)}, /* Dell Wireless 5821e with eSIM support*/ {QMI_FIXED_INTF(0x413c, 0x81e4, 0)}, /* Dell Wireless 5829e with eSIM support*/ {QMI_FIXED_INTF(0x413c, 0x81e6, 0)}, /* Dell Wireless 5829e */ {QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */ {QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)}, /* HP lt4120 Snapdragon X5 LTE */ {QMI_FIXED_INTF(0x22de, 0x9061, 3)}, /* WeTelecom WPD-600N */ {QMI_QUIRK_SET_DTR(0x1e0e, 0x9001, 5)}, /* SIMCom 7100E, 7230E, 7600E ++ */ {QMI_QUIRK_SET_DTR(0x2c7c, 0x0121, 4)}, /* Quectel EC21 Mini PCIe */ {QMI_QUIRK_SET_DTR(0x2c7c, 0x0191, 4)}, /* Quectel EG91 */ {QMI_QUIRK_SET_DTR(0x2c7c, 0x0195, 4)}, /* Quectel EG95 */ {QMI_FIXED_INTF(0x2c7c, 0x0296, 4)}, /* Quectel BG96 */ {QMI_QUIRK_SET_DTR(0x2cb7, 0x0104, 4)}, /* Fibocom NL678 series */ {QMI_FIXED_INTF(0x0489, 0xe0b4, 0)}, /* Foxconn T77W968 LTE */ {QMI_FIXED_INTF(0x0489, 0xe0b5, 0)}, /* Foxconn T77W968 LTE with eSIM support*/ {QMI_FIXED_INTF(0x2692, 0x9025, 4)}, /* Cellient MPL200 (rebranded Qualcomm 05c6:9025) */ /* 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; } /* There are devices where the same interface number can be * configured as different functions. We should only bind to * vendor specific functions when matching on interface number */ if (id->match_flags & USB_DEVICE_ID_MATCH_INT_NUMBER && desc->bInterfaceClass != USB_CLASS_VENDOR_SPEC) { dev_dbg(&intf->dev, "Rejecting interface number match for class %02x\n", desc->bInterfaceClass); return -ENODEV; } /* 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; } /* Several Quectel modems supports dynamic interface configuration, so * we need to match on class/subclass/protocol. These values are * identical for the diagnostic- and QMI-interface, but bNumEndpoints is * different. Ignore the current interface if the number of endpoints * equals the number for the diag interface (two). */ if (desc->bNumEndpoints == 2) 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; struct list_head *iter; struct net_device *ldev; LIST_HEAD(list); /* called twice if separate control and data intf */ if (!dev) return; info = (void *)&dev->data; 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, &list); rcu_read_unlock(); unregister_netdevice_many(&list); 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 "); MODULE_DESCRIPTION("Qualcomm MSM Interface (QMI) WWAN driver"); MODULE_LICENSE("GPL");