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kernel / pub / scm / linux / kernel / git / dlemoal / zonefs / cf556edfde6cfc293ce63de02ac23f725e41dfb1 / . / drivers / net / usb / qmi_wwan.c
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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2012 Bjørn Mork <bjorn@mork.no>
*
* The probing code is heavily inspired by cdc_ether, which is:
* Copyright (C) 2003-2005 by David Brownell
* Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
*/
#include <linux/module.h>
#include <linux/sched/signal.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/etherdevice.h>
#include <linux/if_arp.h>
#include <linux/mii.h>
#include <linux/rtnetlink.h>
#include <linux/usb.h>
#include <linux/usb/cdc.h>
#include <linux/usb/usbnet.h>
#include <linux/usb/cdc-wdm.h>
#include <linux/u64_stats_sync.h>
/* This driver supports wwan (3G/LTE/?) devices using a vendor
* specific management protocol called Qualcomm MSM Interface (QMI) -
* in addition to the more common AT commands over serial interface
* management
*
* QMI is wrapped in CDC, using CDC encapsulated commands on the
* control ("master") interface of a two-interface CDC Union
* resembling standard CDC ECM. The devices do not use the control
* interface for any other CDC messages. Most likely because the
* management protocol is used in place of the standard CDC
* notifications NOTIFY_NETWORK_CONNECTION and NOTIFY_SPEED_CHANGE
*
* Alternatively, control and data functions can be combined in a
* single USB interface.
*
* Handling a protocol like QMI is out of the scope for any driver.
* It is exported as a character device using the cdc-wdm driver as
* a subdriver, enabling userspace applications ("modem managers") to
* handle it.
*
* These devices may alternatively/additionally be configured using AT
* commands on a serial interface
*/
/* driver specific data */
struct qmi_wwan_state {
struct usb_driver *subdriver;
atomic_t pmcount;
unsigned long flags;
struct usb_interface *control;
struct usb_interface *data;
};
enum qmi_wwan_flags {
QMI_WWAN_FLAG_RAWIP = 1 << 0,
QMI_WWAN_FLAG_MUX = 1 << 1,
};
enum qmi_wwan_quirks {
QMI_WWAN_QUIRK_DTR = 1 << 0, /* needs "set DTR" request */
};
struct qmimux_hdr {
u8 pad;
u8 mux_id;
__be16 pkt_len;
};
struct qmimux_priv {
struct net_device *real_dev;
u8 mux_id;
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);
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;
}
/* we don't want to modify a running netdev */
if (netif_running(dev->net)) {
netdev_err(dev->net, "Cannot change a running device\n");
ret = -EBUSY;
goto err;
}
ret = qmimux_register_device(dev->net, mux_id);
if (!ret) {
info->flags |= QMI_WWAN_FLAG_MUX;
ret = len;
}
err:
rtnl_unlock();
return ret;
}
static ssize_t del_mux_show(struct device *d, struct device_attribute *attr, char *buf)
{
return add_mux_show(d, attr, buf);
}
static ssize_t del_mux_store(struct device *d, struct device_attribute *attr, const char *buf, size_t len)
{
struct usbnet *dev = netdev_priv(to_net_dev(d));
struct qmi_wwan_state *info = (void *)&dev->data;
struct net_device *del_dev;
u8 mux_id;
int ret = 0;
if (kstrtou8(buf, 0, &mux_id))
return -EINVAL;
if (!rtnl_trylock())
return restart_syscall();
/* we don't want to modify a running netdev */
if (netif_running(dev->net)) {
netdev_err(dev->net, "Cannot change a running device\n");
ret = -EBUSY;
goto err;
}
del_dev = qmimux_find_dev(dev, mux_id);
if (!del_dev) {
netdev_err(dev->net, "mux_id not present\n");
ret = -EINVAL;
goto err;
}
qmimux_unregister_device(del_dev, 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, 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_FIXED_INTF(0x05c6, 0x9025, 4)}, /* Alcatel-sbell ASB TL131 TDD LTE (China Mobile) */
{QMI_FIXED_INTF(0x05c6, 0x9026, 3)},
{QMI_FIXED_INTF(0x05c6, 0x902e, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9031, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9032, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9033, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9033, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9033, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9033, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9034, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9034, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9034, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9034, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9034, 7)},
{QMI_FIXED_INTF(0x05c6, 0x9035, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9036, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9037, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9038, 4)},
{QMI_FIXED_INTF(0x05c6, 0x903b, 7)},
{QMI_FIXED_INTF(0x05c6, 0x903c, 6)},
{QMI_FIXED_INTF(0x05c6, 0x903d, 6)},
{QMI_FIXED_INTF(0x05c6, 0x903e, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9043, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9046, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9046, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9046, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9047, 2)},
{QMI_FIXED_INTF(0x05c6, 0x9047, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9047, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9048, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9048, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9048, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9048, 7)},
{QMI_FIXED_INTF(0x05c6, 0x9048, 8)},
{QMI_FIXED_INTF(0x05c6, 0x904c, 5)},
{QMI_FIXED_INTF(0x05c6, 0x904c, 6)},
{QMI_FIXED_INTF(0x05c6, 0x904c, 7)},
{QMI_FIXED_INTF(0x05c6, 0x904c, 8)},
{QMI_FIXED_INTF(0x05c6, 0x9050, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9052, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9053, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9053, 7)},
{QMI_FIXED_INTF(0x05c6, 0x9054, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9054, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9055, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9055, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9055, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9055, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9055, 7)},
{QMI_FIXED_INTF(0x05c6, 0x9056, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9062, 2)},
{QMI_FIXED_INTF(0x05c6, 0x9062, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9062, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9062, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9062, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9062, 7)},
{QMI_FIXED_INTF(0x05c6, 0x9062, 8)},
{QMI_FIXED_INTF(0x05c6, 0x9062, 9)},
{QMI_FIXED_INTF(0x05c6, 0x9064, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9065, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9065, 7)},
{QMI_FIXED_INTF(0x05c6, 0x9066, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9066, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9067, 1)},
{QMI_FIXED_INTF(0x05c6, 0x9068, 2)},
{QMI_FIXED_INTF(0x05c6, 0x9068, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9068, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9068, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9068, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9068, 7)},
{QMI_FIXED_INTF(0x05c6, 0x9069, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9069, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9069, 7)},
{QMI_FIXED_INTF(0x05c6, 0x9069, 8)},
{QMI_FIXED_INTF(0x05c6, 0x9070, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9070, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9075, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9076, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9076, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9076, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9076, 7)},
{QMI_FIXED_INTF(0x05c6, 0x9076, 8)},
{QMI_FIXED_INTF(0x05c6, 0x9077, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9077, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9077, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9077, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9078, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9079, 4)},
{QMI_FIXED_INTF(0x05c6, 0x9079, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9079, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9079, 7)},
{QMI_FIXED_INTF(0x05c6, 0x9079, 8)},
{QMI_FIXED_INTF(0x05c6, 0x9080, 5)},
{QMI_FIXED_INTF(0x05c6, 0x9080, 6)},
{QMI_FIXED_INTF(0x05c6, 0x9080, 7)},
{QMI_FIXED_INTF(0x05c6, 0x9080, 8)},
{QMI_FIXED_INTF(0x05c6, 0x9083, 3)},
{QMI_FIXED_INTF(0x05c6, 0x9084, 4)},
{QMI_FIXED_INTF(0x05c6, 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(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, 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, 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, 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_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(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, 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(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_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*/
/* 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 <bjorn@mork.no>");
MODULE_DESCRIPTION("Qualcomm MSM Interface (QMI) WWAN driver");
MODULE_LICENSE("GPL");