qmi_wwan.c 52.7 KB
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// SPDX-License-Identifier: GPL-2.0-only
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/*
 * Copyright (c) 2012  Bjørn Mork <bjorn@mork.no>
 *
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 * 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)
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 */

#include <linux/module.h>
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#include <linux/sched/signal.h>
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#include <linux/netdevice.h>
#include <linux/ethtool.h>
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#include <linux/etherdevice.h>
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#include <linux/if_arp.h>
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#include <linux/mii.h>
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#include <linux/rtnetlink.h>
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#include <linux/usb.h>
#include <linux/usb/cdc.h>
#include <linux/usb/usbnet.h>
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#include <linux/usb/cdc-wdm.h>
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#include <linux/u64_stats_sync.h>
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/* This driver supports wwan (3G/LTE/?) devices using a vendor
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 * 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
 *
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 * Alternatively, control and data functions can be combined in a
 * single USB interface.
 *
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 * Handling a protocol like QMI is out of the scope for any driver.
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 * It is exported as a character device using the cdc-wdm driver as
 * a subdriver, enabling userspace applications ("modem managers") to
 * handle it.
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 *
 * These devices may alternatively/additionally be configured using AT
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 * commands on a serial interface
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 */

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/* driver specific data */
struct qmi_wwan_state {
	struct usb_driver *subdriver;
	atomic_t pmcount;
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	unsigned long flags;
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	struct usb_interface *control;
	struct usb_interface *data;
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};

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enum qmi_wwan_flags {
	QMI_WWAN_FLAG_RAWIP = 1 << 0,
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	QMI_WWAN_FLAG_MUX = 1 << 1,
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};

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enum qmi_wwan_quirks {
	QMI_WWAN_QUIRK_DTR = 1 << 0,	/* needs "set DTR" request */
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	QMI_WWAN_QUIRK_QUECTEL_DYNCFG = 1 << 1,	/* check num. endpoints */
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};

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struct qmimux_hdr {
	u8 pad;
	u8 mux_id;
	__be16 pkt_len;
};

struct qmimux_priv {
	struct net_device *real_dev;
	u8 mux_id;
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	struct pcpu_sw_netstats __percpu *stats64;
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};

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;
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	netdev_tx_t ret;
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	hdr = skb_push(skb, sizeof(struct qmimux_hdr));
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	hdr->pad = 0;
	hdr->mux_id = priv->mux_id;
	hdr->pkt_len = cpu_to_be16(len);
	skb->dev = priv->real_dev;
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	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;
	}
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}

static const struct net_device_ops qmimux_netdev_ops = {
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	.ndo_open        = qmimux_open,
	.ndo_stop        = qmimux_stop,
	.ndo_start_xmit  = qmimux_start_xmit,
	.ndo_get_stats64 = qmimux_get_stats64,
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};

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;
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	dev->mtu             = 1500;
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	dev->needs_free_netdev = true;
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}

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)
{
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	unsigned int len, offset = 0, pad_len, pkt_len;
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	struct qmimux_hdr *hdr;
	struct net_device *net;
	struct sk_buff *skbn;
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	u8 qmimux_hdr_sz = sizeof(*hdr);
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	while (offset + qmimux_hdr_sz < skb->len) {
		hdr = (struct qmimux_hdr *)(skb->data + offset);
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		len = be16_to_cpu(hdr->pkt_len);

		/* drop the packet, bogus length */
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		if (offset + len + qmimux_hdr_sz > skb->len)
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			return 0;

		/* control packet, we do not know what to do */
		if (hdr->pad & 0x80)
			goto skip;

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		/* 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;

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		net = qmimux_find_dev(dev, hdr->mux_id);
		if (!net)
			goto skip;
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		skbn = netdev_alloc_skb(net, pkt_len);
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		if (!skbn)
			return 0;
		skbn->dev = net;

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		switch (skb->data[offset + qmimux_hdr_sz] & 0xf0) {
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		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;
		}

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		skb_put_data(skbn, skb->data + offset + qmimux_hdr_sz, pkt_len);
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		if (netif_rx(skbn) != NET_RX_SUCCESS) {
			net->stats.rx_errors++;
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			return 0;
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		} 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);
		}
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skip:
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		offset += len + qmimux_hdr_sz;
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	}
	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;

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	priv->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
	if (!priv->stats64) {
		err = -ENOBUFS;
		goto out_free_newdev;
	}

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	err = register_netdevice(new_dev);
	if (err < 0)
		goto out_free_newdev;

	/* Account for reference in struct qmimux_priv_priv */
	dev_hold(real_dev);

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	err = netdev_upper_dev_link(real_dev, new_dev, NULL);
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	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;
}

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static void qmimux_unregister_device(struct net_device *dev,
				     struct list_head *head)
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{
	struct qmimux_priv *priv = netdev_priv(dev);
	struct net_device *real_dev = priv->real_dev;

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	free_percpu(priv->stats64);
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	netdev_upper_dev_unlink(real_dev, dev);
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	unregister_netdevice_queue(dev, head);
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	/* Get rid of the reference to real_dev */
	dev_put(real_dev);
}

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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;
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		set_bit(EVENT_NO_IP_ALIGN, &dev->flags);
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		netdev_dbg(net, "mode: raw IP\n");
	} else if (!net->header_ops) { /* don't bother if already set */
		ether_setup(net);
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		clear_bit(EVENT_NO_IP_ALIGN, &dev->flags);
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		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;
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	int ret;
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	if (strtobool(buf, &enable))
		return -EINVAL;

	/* no change? */
	if (enable == (info->flags & QMI_WWAN_FLAG_RAWIP))
		return len;

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	if (!rtnl_trylock())
		return restart_syscall();

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	/* we don't want to modify a running netdev */
	if (netif_running(dev->net)) {
		netdev_err(dev->net, "Cannot change a running device\n");
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		ret = -EBUSY;
		goto err;
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	}

	/* let other drivers deny the change */
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	ret = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev->net);
	ret = notifier_to_errno(ret);
	if (ret) {
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		netdev_err(dev->net, "Type change was refused\n");
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		goto err;
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	}

	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);
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	ret = len;
err:
	rtnl_unlock();
	return ret;
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}

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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;

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	/* mux_id [1 - 254] for compatibility with ip(8) and the rmnet driver */
	if (mux_id < 1 || mux_id > 254)
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		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;
	}
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	qmimux_unregister_device(del_dev, NULL);
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	if (!qmimux_has_slaves(dev))
		info->flags &= ~QMI_WWAN_FLAG_MUX;
	ret = len;
err:
	rtnl_unlock();
	return ret;
}

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static DEVICE_ATTR_RW(raw_ip);
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static DEVICE_ATTR_RW(add_mux);
static DEVICE_ATTR_RW(del_mux);
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static struct attribute *qmi_wwan_sysfs_attrs[] = {
	&dev_attr_raw_ip.attr,
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	&dev_attr_add_mux.attr,
	&dev_attr_del_mux.attr,
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	NULL,
};

static struct attribute_group qmi_wwan_sysfs_attr_group = {
	.name = "qmi",
	.attrs = qmi_wwan_sysfs_attrs,
};

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/* default ethernet address used by the modem */
static const u8 default_modem_addr[ETH_ALEN] = {0x02, 0x50, 0xf3};

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static const u8 buggy_fw_addr[ETH_ALEN] = {0x00, 0xa0, 0xc6, 0x00, 0x00, 0x00};

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/* 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.
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 *
 * 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.
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 */
static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
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	struct qmi_wwan_state *info = (void *)&dev->data;
	bool rawip = info->flags & QMI_WWAN_FLAG_RAWIP;
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	__be16 proto;

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	/* This check is no longer done by usbnet */
	if (skb->len < dev->net->hard_header_len)
		return 0;

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	if (info->flags & QMI_WWAN_FLAG_MUX)
		return qmimux_rx_fixup(dev, skb);

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	switch (skb->data[0] & 0xf0) {
	case 0x40:
		proto = htons(ETH_P_IP);
		break;
	case 0x60:
		proto = htons(ETH_P_IPV6);
		break;
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	case 0x00:
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		if (rawip)
			return 0;
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		if (is_multicast_ether_addr(skb->data))
			return 1;
		/* possibly bogus destination - rewrite just in case */
		skb_reset_mac_header(skb);
		goto fix_dest;
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	default:
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		if (rawip)
			return 0;
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		/* pass along other packets without modifications */
		return 1;
	}
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	if (rawip) {
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		skb_reset_mac_header(skb);
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		skb->dev = dev->net; /* normally set by eth_type_trans */
		skb->protocol = proto;
		return 1;
	}

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	if (skb_headroom(skb) < ETH_HLEN)
		return 0;
	skb_push(skb, ETH_HLEN);
	skb_reset_mac_header(skb);
	eth_hdr(skb)->h_proto = proto;
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	eth_zero_addr(eth_hdr(skb)->h_source);
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fix_dest:
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	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,
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	.ndo_get_stats64	= usbnet_get_stats64,
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	.ndo_set_mac_address	= qmi_wwan_mac_addr,
	.ndo_validate_addr	= eth_validate_addr,
};

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/* using a counter to merge subdriver requests with our own into a
 * combined state
 */
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static int qmi_wwan_manage_power(struct usbnet *dev, int on)
{
	struct qmi_wwan_state *info = (void *)&dev->data;
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	int rv;
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	dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__,
		atomic_read(&info->pmcount), on);
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	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
		 */
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		rv = usb_autopm_get_interface(dev->intf);
		dev->intf->needs_remote_wakeup = on;
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		if (!rv)
			usb_autopm_put_interface(dev->intf);
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	}
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	return 0;
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}

static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on)
{
	struct usbnet *dev = usb_get_intfdata(intf);
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	/* can be called while disconnecting */
	if (!dev)
		return 0;
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	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 */
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	subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc,
					 4096, &qmi_wwan_cdc_wdm_manage_power);
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	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;
}

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/* 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);
}

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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;
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	struct usb_cdc_union_desc *cdc_union;
	struct usb_cdc_ether_desc *cdc_ether;
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	struct usb_driver *driver = driver_of(intf);
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	struct qmi_wwan_state *info = (void *)&dev->data;
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	struct usb_cdc_parsed_header hdr;
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	BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
		      sizeof(struct qmi_wwan_state)));
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	/* set up initial state */
	info->control = intf;
	info->data = intf;
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	/* and a number of CDC descriptors */
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	cdc_parse_cdc_header(&hdr, intf, buf, len);
	cdc_union = hdr.usb_cdc_union_desc;
	cdc_ether = hdr.usb_cdc_ether_desc;
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	/* Use separate control and data interfaces if we found a CDC Union */
	if (cdc_union) {
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		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);
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			/* ignore and continue... */
			cdc_union = NULL;
			info->data = intf;
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		}
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	}

	/* errors aren't fatal - we can live with the dynamic address */
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	if (cdc_ether && cdc_ether->wMaxSegmentSize) {
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		dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
		usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
	}

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	/* claim data interface and set it up */
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	if (info->control != info->data) {
		status = usb_driver_claim_interface(driver, info->data, dev);
		if (status < 0)
			goto err;
	}
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772
	status = qmi_wwan_register_subdriver(dev);
773
	if (status < 0 && info->control != info->data) {
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		usb_set_intfdata(info->data, NULL);
		usb_driver_release_interface(driver, info->data);
	}
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	/* 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
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	 * 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.
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	 */
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	if (dev->driver_info->data & QMI_WWAN_QUIRK_DTR ||
	    le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) {
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		qmi_wwan_manage_power(dev, 1);
		qmi_wwan_change_dtr(dev, true);
	}

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	/* 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,
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	 */
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	if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) ||
	    ether_addr_equal(dev->net->dev_addr, buggy_fw_addr))
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		eth_hw_addr_random(dev->net);

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	/* 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;
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	dev->net->sysfs_groups[0] = &qmi_wwan_sysfs_attr_group;
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err:
	return status;
}

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static void qmi_wwan_unbind(struct usbnet *dev, struct usb_interface *intf)
821
{
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	struct qmi_wwan_state *info = (void *)&dev->data;
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	struct usb_driver *driver = driver_of(intf);
	struct usb_interface *other;
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	if (info->subdriver && info->subdriver->disconnect)
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		info->subdriver->disconnect(info->control);

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	/* disable MDM9x30 quirk */
	if (le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) {
		qmi_wwan_change_dtr(dev, false);
		qmi_wwan_manage_power(dev, 0);
	}

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	/* 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);
	}
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	info->subdriver = NULL;
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	info->data = NULL;
	info->control = NULL;
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}

/* 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);
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	struct qmi_wwan_state *info = (void *)&dev->data;
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	int ret;

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	/* Both usbnet_suspend() and subdriver->suspend() MUST return 0
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	 * in system sleep context, otherwise, the resume callback has
	 * to recover device from previous suspend failure.
	 */
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	ret = usbnet_suspend(intf, message);
	if (ret < 0)
		goto err;

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	if (intf == info->control && info->subdriver &&
	    info->subdriver->suspend)
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		ret = info->subdriver->suspend(intf, message);
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	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);
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	struct qmi_wwan_state *info = (void *)&dev->data;
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	int ret = 0;
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	bool callsub = (intf == info->control && info->subdriver &&
			info->subdriver->resume);
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889
	if (callsub)
890
		ret = info->subdriver->resume(intf);
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	if (ret < 0)
		goto err;
	ret = usbnet_resume(intf);
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	if (ret < 0 && callsub)
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		info->subdriver->suspend(intf, PMSG_SUSPEND);
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err:
	return ret;
}

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static const struct driver_info	qmi_wwan_info = {
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	.description	= "WWAN/QMI device",
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	.flags		= FLAG_WWAN | FLAG_SEND_ZLP,
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	.bind		= qmi_wwan_bind,
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	.unbind		= qmi_wwan_unbind,
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	.manage_power	= qmi_wwan_manage_power,
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	.rx_fixup       = qmi_wwan_rx_fixup,
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};

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static const struct driver_info	qmi_wwan_info_quirk_dtr = {
	.description	= "WWAN/QMI device",
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	.flags		= FLAG_WWAN | FLAG_SEND_ZLP,
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	.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,
};

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static const struct driver_info	qmi_wwan_info_quirk_quectel_dyncfg = {
	.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 | QMI_WWAN_QUIRK_QUECTEL_DYNCFG,
};

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#define HUAWEI_VENDOR_ID	0x12D1
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/* map QMI/wwan function by a fixed interface number */
#define QMI_FIXED_INTF(vend, prod, num) \
	USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \
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	.driver_info = (unsigned long)&qmi_wwan_info
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/* 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

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/* Gobi 1000 QMI/wwan interface number is 3 according to qcserial */
#define QMI_GOBI1K_DEVICE(vend, prod) \
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	QMI_FIXED_INTF(vend, prod, 3)
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945
/* Gobi 2000/3000 QMI/wwan interface number is 0 according to qcserial */
946
#define QMI_GOBI_DEVICE(vend, prod) \
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	QMI_FIXED_INTF(vend, prod, 0)
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/* Quectel does not use fixed interface numbers on at least some of their
 * devices. We need to check the number of endpoints to ensure that we bind to
 * the correct interface.
 */
#define QMI_QUIRK_QUECTEL_DYNCFG(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_quectel_dyncfg

958
static const struct usb_device_id products[] = {
959
	/* 1. CDC ECM like devices match on the control interface */
960
	{	/* Huawei E392, E398 and possibly others sharing both device id and more... */
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		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 9),
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		.driver_info        = (unsigned long)&qmi_wwan_info,
	},
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	{	/* Vodafone/Huawei K5005 (12d1:14c8) and similar modems */
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		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 57),
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		.driver_info        = (unsigned long)&qmi_wwan_info,
	},
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	{	/* 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,
	},
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	{	/* Motorola Mapphone devices with MDM6600 */
		USB_VENDOR_AND_INTERFACE_INFO(0x22b8, USB_CLASS_VENDOR_SPEC, 0xfb, 0xff),
		.driver_info        = (unsigned long)&qmi_wwan_info,
	},
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	/* 2. Combined interface devices matching on class+protocol */
978
	{	/* Huawei E367 and possibly others in "Windows mode" */
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		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 7),
		.driver_info        = (unsigned long)&qmi_wwan_info,
	},
982
	{	/* Huawei E392, E398 and possibly others in "Windows mode" */
983
		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 17),
984
		.driver_info        = (unsigned long)&qmi_wwan_info,
985
	},
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	{	/* 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,
	},
994
	{	/* Pantech UML290, P4200 and more */
995
		USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf0, 0xff),
996
		.driver_info        = (unsigned long)&qmi_wwan_info,
997
	},
998
	{	/* Pantech UML290 - newer firmware */
999
		USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf1, 0xff),
1000
		.driver_info        = (unsigned long)&qmi_wwan_info,
1001
	},
1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015
	{	/* 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,
	},
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	{	/* 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,
	},
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	{	/* 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,
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					      USB_CDC_SUBCLASS_ETHERNET,
					      USB_CDC_PROTO_NONE),
		.driver_info        = (unsigned long)&qmi_wwan_info,
	},
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	{	/* 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,
	},
1044 1045 1046
	{	/* ADU960S */
		USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a,
					      USB_CLASS_COMM,
1047 1048 1049 1050
					      USB_CDC_SUBCLASS_ETHERNET,
					      USB_CDC_PROTO_NONE),
		.driver_info        = (unsigned long)&qmi_wwan_info,
	},
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	{	/* 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,
	},
1058 1059 1060 1061
	{	/* 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,
	},
1062 1063 1064
	{QMI_QUIRK_QUECTEL_DYNCFG(0x2c7c, 0x0125)},	/* Quectel EC25, EC20 R2.0  Mini PCIe */
	{QMI_QUIRK_QUECTEL_DYNCFG(0x2c7c, 0x0306)},	/* Quectel EP06/EG06/EM06 */
	{QMI_QUIRK_QUECTEL_DYNCFG(0x2c7c, 0x0512)},	/* Quectel EG12/EM12 */
1065

1066
	/* 3. Combined interface devices matching on interface number */
1067
	{QMI_FIXED_INTF(0x0408, 0xea42, 4)},	/* Yota / Megafon M100-1 */
1068
	{QMI_FIXED_INTF(0x05c6, 0x6001, 3)},	/* 4G LTE usb-modem U901 */
1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195
	{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)},
1196
	{QMI_FIXED_INTF(0x05c6, 0x90b2, 3)},    /* ublox R410M */
1197 1198
	{QMI_FIXED_INTF(0x05c6, 0x920d, 0)},
	{QMI_FIXED_INTF(0x05c6, 0x920d, 5)},
1199
	{QMI_QUIRK_SET_DTR(0x05c6, 0x9625, 4)},	/* YUGA CLM920-NC5 */
1200
	{QMI_FIXED_INTF(0x0846, 0x68a2, 8)},
1201
	{QMI_FIXED_INTF(0x0846, 0x68d3, 8)},	/* Netgear Aircard 779S */
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Bjørn Mork committed
1202
	{QMI_FIXED_INTF(0x12d1, 0x140c, 1)},	/* Huawei E173 */
1203
	{QMI_FIXED_INTF(0x12d1, 0x14ac, 1)},	/* Huawei E1820 */
1204 1205 1206 1207 1208
	{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 */
1209 1210 1211
	{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 */
1212 1213
	{QMI_FIXED_INTF(0x1435, 0xd182, 4)},	/* Wistron NeWeb D18 */
	{QMI_FIXED_INTF(0x1435, 0xd182, 5)},	/* Wistron NeWeb D18 */
1214
	{QMI_FIXED_INTF(0x1435, 0xd191, 4)},	/* Wistron NeWeb D19Q1 */
1215
	{QMI_QUIRK_SET_DTR(0x1508, 0x1001, 4)},	/* Fibocom NL668 series */
1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231
	{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 */
1232 1233 1234
	{QMI_FIXED_INTF(0x19d2, 0x0002, 1)},
	{QMI_FIXED_INTF(0x19d2, 0x0012, 1)},
	{QMI_FIXED_INTF(0x19d2, 0x0017, 3)},
1235
	{QMI_FIXED_INTF(0x19d2, 0x0019, 3)},	/* ONDA MT689DC */
1236 1237 1238 1239 1240 1241
	{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)},
1242
	{QMI_FIXED_INTF(0x19d2, 0x0055, 1)},	/* ZTE (Vodafone) K3520-Z */
1243
	{QMI_FIXED_INTF(0x19d2, 0x0058, 4)},
1244 1245
	{QMI_FIXED_INTF(0x19d2, 0x0063, 4)},	/* ZTE (Vodafone) K3565-Z */
	{QMI_FIXED_INTF(0x19d2, 0x0104, 4)},	/* ZTE (Vodafone) K4505-Z */
1246 1247 1248 1249 1250 1251 1252 1253 1254 1255
	{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)},
1256
	{QMI_FIXED_INTF(0x19d2, 0x0157, 5)},	/* ZTE MF683 */
1257
	{QMI_FIXED_INTF(0x19d2, 0x0158, 3)},
1258
	{QMI_FIXED_INTF(0x19d2, 0x0167, 4)},	/* ZTE MF820D */
1259 1260 1261 1262 1263 1264 1265
	{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 */
1266
	{QMI_FIXED_INTF(0x19d2, 0x0265, 4)},	/* ONDA MT8205 4G LTE */
Bjørn Mork's avatar
Bjørn Mork committed
1267
	{QMI_FIXED_INTF(0x19d2, 0x0284, 4)},	/* ZTE MF880 */
1268
	{QMI_FIXED_INTF(0x19d2, 0x0326, 4)},	/* ZTE MF821D */
1269
	{QMI_FIXED_INTF(0x19d2, 0x0396, 3)},	/* ZTE ZM8620 */
1270
	{QMI_FIXED_INTF(0x19d2, 0x0412, 4)},	/* Telewell TW-LTE 4G */
1271 1272
	{QMI_FIXED_INTF(0x19d2, 0x1008, 4)},	/* ZTE (Vodafone) K3570-Z */
	{QMI_FIXED_INTF(0x19d2, 0x1010, 4)},	/* ZTE (Vodafone) K3571-Z */
1273
	{QMI_FIXED_INTF(0x19d2, 0x1012, 4)},
1274
	{QMI_FIXED_INTF(0x19d2, 0x1018, 3)},	/* ZTE (Vodafone) K5006-Z */
1275 1276 1277 1278 1279 1280 1281 1282
	{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)},
1283
	{QMI_FIXED_INTF(0x19d2, 0x1270, 5)},	/* ZTE MF667 */
1284
	{QMI_FIXED_INTF(0x19d2, 0x1401, 2)},
1285
	{QMI_FIXED_INTF(0x19d2, 0x1402, 2)},	/* ZTE MF60 */
1286 1287 1288
	{QMI_FIXED_INTF(0x19d2, 0x1424, 2)},
	{QMI_FIXED_INTF(0x19d2, 0x1425, 2)},
	{QMI_FIXED_INTF(0x19d2, 0x1426, 2)},	/* ZTE MF91 */
1289
	{QMI_FIXED_INTF(0x19d2, 0x1428, 2)},	/* Telewell TW-LTE 4G v2 */
1290
	{QMI_FIXED_INTF(0x19d2, 0x1432, 3)},	/* ZTE ME3620 */
1291
	{QMI_FIXED_INTF(0x19d2, 0x2002, 4)},	/* ZTE (Vodafone) K3765-Z */
1292
	{QMI_FIXED_INTF(0x2001, 0x7e16, 3)},	/* D-Link DWM-221 */
1293
	{QMI_FIXED_INTF(0x2001, 0x7e19, 4)},	/* D-Link DWM-221 B1 */
1294
	{QMI_FIXED_INTF(0x2001, 0x7e35, 4)},	/* D-Link DWM-222 */
Bjørn Mork's avatar
Bjørn Mork committed
1295
	{QMI_FIXED_INTF(0x2020, 0x2031, 4)},	/* Olicard 600 */
1296 1297
	{QMI_FIXED_INTF(0x2020, 0x2033, 4)},	/* BroadMobi BM807U */
	{QMI_FIXED_INTF(0x2020, 0x2060, 4)},	/* BroadMobi BM818 */
1298 1299
	{QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)},    /* Sierra Wireless MC7700 */
	{QMI_FIXED_INTF(0x114f, 0x68a2, 8)},    /* Sierra Wireless MC7750 */
1300 1301
	{QMI_FIXED_INTF(0x1199, 0x68a2, 8)},	/* Sierra Wireless MC7710 in QMI mode */
	{QMI_FIXED_INTF(0x1199, 0x68a2, 19)},	/* Sierra Wireless MC7710 in QMI mode */
1302 1303
	{QMI_QUIRK_SET_DTR(0x1199, 0x68c0, 8)},	/* Sierra Wireless MC7304/MC7354, WP76xx */
	{QMI_QUIRK_SET_DTR(0x1199, 0x68c0, 10)},/* Sierra Wireless MC7304/MC7354 */
1304
	{QMI_FIXED_INTF(0x1199, 0x901c, 8)},    /* Sierra Wireless EM7700 */
1305
	{QMI_FIXED_INTF(0x1199, 0x901f, 8)},    /* Sierra Wireless EM7355 */
1306
	{QMI_FIXED_INTF(0x1199, 0x9041, 8)},	/* Sierra Wireless MC7305/MC7355 */
1307
	{QMI_FIXED_INTF(0x1199, 0x9041, 10)},	/* Sierra Wireless MC7305/MC7355 */
1308
	{QMI_FIXED_INTF(0x1199, 0x9051, 8)},	/* Netgear AirCard 340U */
1309 1310
	{QMI_FIXED_INTF(0x1199, 0x9053, 8)},	/* Sierra Wireless Modem */
	{QMI_FIXED_INTF(0x1199, 0x9054, 8)},	/* Sierra Wireless Modem */
1311
	{QMI_FIXED_INTF(0x1199, 0x9055, 8)},	/* Netgear AirCard 341U */
1312
	{QMI_FIXED_INTF(0x1199, 0x9056, 8)},	/* Sierra Wireless Modem */
1313
	{QMI_FIXED_INTF(0x1199, 0x9057, 8)},
1314
	{QMI_FIXED_INTF(0x1199, 0x9061, 8)},	/* Sierra Wireless Modem */
1315 1316
	{QMI_FIXED_INTF(0x1199, 0x9063, 8)},	/* Sierra Wireless EM7305 */
	{QMI_FIXED_INTF(0x1199, 0x9063, 10)},	/* Sierra Wireless EM7305 */
1317 1318 1319 1320 1321 1322 1323
	{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 */
1324
	{QMI_FIXED_INTF(0x1bbb, 0x011e, 4)},	/* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */
1325
	{QMI_FIXED_INTF(0x1bbb, 0x0203, 2)},	/* Alcatel L800MA */
1326
	{QMI_FIXED_INTF(0x2357, 0x0201, 4)},	/* TP-LINK HSUPA Modem MA180 */
1327
	{QMI_FIXED_INTF(0x2357, 0x9000, 4)},	/* TP-LINK MA260 */
1328
	{QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)},	/* Telit LE922A */
1329
	{QMI_FIXED_INTF(0x1bc7, 0x1100, 3)},	/* Telit ME910 */
1330
	{QMI_FIXED_INTF(0x1bc7, 0x1101, 3)},	/* Telit ME910 dual modem */
1331
	{QMI_FIXED_INTF(0x1bc7, 0x1200, 5)},	/* Telit LE920 */
1332
	{QMI_QUIRK_SET_DTR(0x1bc7, 0x1201, 2)},	/* Telit LE920, LE920A4 */
1333 1334
	{QMI_QUIRK_SET_DTR(0x1bc7, 0x1260, 2)},	/* Telit LE910Cx */
	{QMI_QUIRK_SET_DTR(0x1bc7, 0x1261, 2)},	/* Telit LE910Cx */
1335
	{QMI_QUIRK_SET_DTR(0x1bc7, 0x1900, 1)},	/* Telit LN940 series */
1336 1337
	{QMI_FIXED_INTF(0x1c9e, 0x9801, 3)},	/* Telewell TW-3G HSPA+ */
	{QMI_FIXED_INTF(0x1c9e, 0x9803, 4)},	/* Telewell TW-3G HSPA+ */
1338
	{QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)},	/* XS Stick W100-2 from 4G Systems */
1339 1340 1341 1342 1343 1344
	{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 */
1345
	{QMI_FIXED_INTF(0x0b3c, 0xc00b, 4)},	/* Olivetti Olicard 500 */
1346
	{QMI_FIXED_INTF(0x1e2d, 0x0060, 4)},	/* Cinterion PLxx */
1347
	{QMI_FIXED_INTF(0x1e2d, 0x0053, 4)},	/* Cinterion PHxx,PXxx */
1348
	{QMI_FIXED_INTF(0x1e2d, 0x0063, 10)},	/* Cinterion ALASxx (1 RmNet) */
1349 1350 1351
	{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)*/
1352 1353 1354 1355 1356
	{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 */