2012/11/12 Bjørn Mork <bjorn mork no>:
> Olof Ermis <olof ermis gmail com> writes:
>
>> Hi!
>>
>> I can just verify that on the Huawei E3276 modem i can connect,
>> disconnect and query using the AT commands below.
>>
>> I however don't get any network. I have patched cdc_ncm with:
>>
>> /* Huawei NCM devices disguised as vendor specific */
>> { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x16),
>> .driver_info = (unsigned long)&wwan_info,
>> },
>> { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x46),
>> .driver_info = (unsigned long)&wwan_info,
>> },
>>
>> Any recommendations on what to debug / configure?
>
> Verify that you have built and installed the patched cdc_ncm by
> e.g. doing "modinfo cdc_ncm". You should see something like this:
>
> filename: /lib/modules/3.7.0-rc3+/kernel/drivers/net/usb/cdc_ncm.ko
> license: Dual BSD/GPL
> description: USB CDC NCM host driver
> author: Hans Petter Selasky
> alias: usb:v*p*d*dc*dsc*dp*ic02isc0Dip00in*
> alias: usb:v12D1p*d*dc*dsc*dp*icFFisc02ip46in*
> alias: usb:v12D1p*d*dc*dsc*dp*icFFisc02ip16in*
> alias: usb:v0930p*d*dc*dsc*dp*ic02isc0Dip00in*
> alias: usb:v413Cp*d*dc*dsc*dp*ic02isc0Dip00in*
> alias: usb:v0BDBp*d*dc*dsc*dp*ic02isc0Dip00in*
> depends: usbnet,usbcore
> vermagic: 3.7.0-rc3+ SMP mod_unload modversions
>
>
> The interesting part is of course the two aliases with 12D1. You can do a
>
> grep . /sys/bus/usb/devices/*/modalias
I get:
root@oloflinux:~# modinfo cdc_ncm
filename: /lib/modules/3.7.0-rc4+/kernel/drivers/net/usb/cdc_ncm.ko
license: Dual BSD/GPL
description: USB CDC NCM host driver
author: Hans Petter Selasky
srcversion: 93D35726A53CD81FD507A23
alias: usb:v*p*d*dc*dsc*dp*ic02isc0Dip00in*
alias: usb:v12D1p*d*dc*dsc*dp*icFFisc02ip46in*
alias: usb:v12D1p*d*dc*dsc*dp*icFFisc02ip16in*
alias: usb:v0930p*d*dc*dsc*dp*ic02isc0Dip00in*
alias: usb:v413Cp*d*dc*dsc*dp*ic02isc0Dip00in*
alias: usb:v0BDBp*d*dc*dsc*dp*ic02isc0Dip00in*
depends: usbnet
intree: Y
vermagic: 3.7.0-rc4+ SMP mod_unload modversions 686
root@oloflinux:~# grep . /sys/bus/usb/devices/*/modalias
/sys/bus/usb/devices/1-0:1.0/modalias:usb:v1D6Bp0002d0307dc09dsc00dp00ic09isc00ip00in00
/sys/bus/usb/devices/2-0:1.0/modalias:usb:v1D6Bp0002d0307dc09dsc00dp00ic09isc00ip00in00
/sys/bus/usb/devices/2-6:1.0/modalias:usb:v12D1p1506d0102dc00dsc00dp00icFFisc02ip12in00
/sys/bus/usb/devices/2-6:1.1/modalias:usb:v12D1p1506d0102dc00dsc00dp00icFFisc02ip16in01
/sys/bus/usb/devices/2-6:1.2/modalias:usb:v12D1p1506d0102dc00dsc00dp00ic08isc06ip50in02
/sys/bus/usb/devices/2-6:1.3/modalias:usb:v12D1p1506d0102dc00dsc00dp00ic08isc06ip50in03
/sys/bus/usb/devices/3-0:1.0/modalias:usb:v1D6Bp0001d0307dc09dsc00dp00ic09isc00ip00in00
/sys/bus/usb/devices/4-0:1.0/modalias:usb:v1D6Bp0001d0307dc09dsc00dp00ic09isc00ip00in00
/sys/bus/usb/devices/5-0:1.0/modalias:usb:v1D6Bp0001d0307dc09dsc00dp00ic09isc00ip00in00
/sys/bus/usb/devices/5-1:1.0/modalias:usb:v045Ep00B4d0143dc00dsc00dp00ic03isc01ip01in00
/sys/bus/usb/devices/5-1:1.1/modalias:usb:v045Ep00B4d0143dc00dsc00dp00ic03isc00ip00in01
/sys/bus/usb/devices/5-2:1.0/modalias:usb:v045Ep0039d0300dc00dsc00dp00ic03isc01ip02in00
/sys/bus/usb/devices/6-0:1.0/modalias:usb:v1D6Bp0001d0307dc09dsc00dp00ic09isc00ip00in00
/sys/bus/usb/devices/7-0:1.0/modalias:usb:v1D6Bp0001d0307dc09dsc00dp00ic09isc00ip00in00
/sys/bus/usb/devices/8-0:1.0/modalias:usb:v1D6Bp0001d0307dc09dsc00dp00ic09isc00ip00in00
So it looks like alias usb:v12D1p*d*dc*dsc*dp*icFFisc02ip16in* should match
/sys/bus/usb/devices/2-6:1.1/modalias:usb:v12D1p1506d0102dc00dsc00dp00icFFisc02ip16in01
>
> and verify that the "usb:v12D1p*d*dc*dsc*dp*icFFisc02ip16in*" one does
> in fact match the network function on your modem. Hmm, is there some
> smart shell utility which will do glob matching against a text file?
>
> Anything interesting in the logs if you load cdc_ncm manually?
Not as far as I can see:
root@oloflinux:~# modprobe -v -r cdc_ncm
rmmod /lib/modules/3.7.0-rc4+/kernel/drivers/net/usb/cdc_ncm.ko
rmmod /lib/modules/3.7.0-rc4+/kernel/drivers/net/usb/usbnet.ko
root@oloflinux:~# modprobe -v cdc_ncm
insmod /lib/modules/3.7.0-rc4+/kernel/drivers/net/usb/usbnet.ko
insmod /lib/modules/3.7.0-rc4+/kernel/drivers/net/usb/cdc_ncm.ko
lsmod gives
cdc_ncm 17247 0
usbnet 25331 1 cdc_ncm
option 29746 1
usb_wwan 14830 1 option
usbserial 27212 4 option,usb_wwan
One thing that is slightly different is that you in modinfo cdc_ncm have:
depends: usbnet,usbcore
but I have:
depends: usbnet
>
>
>> I can help out with testing an updated ModemManager as well I you
>> decide to do that.
>
> Did you try the "AT+CLAC" command and send the result of that to
> Aleksander?
Attached is the AT+CLAC output and the patched cdc_ncm.c file that is used.
>
>
>
> Bjørn
Olof
/* * cdc_ncm.c * * Copyright (C) ST-Ericsson 2010-2012 * Contact: Alexey Orishko <alexey orishko stericsson com> * Original author: Hans Petter Selasky <hans petter selasky stericsson com> * * USB Host Driver for Network Control Model (NCM) * http://www.usb.org/developers/devclass_docs/NCM10.zip * * The NCM encoding, decoding and initialization logic * derives from FreeBSD 8.x. if_cdce.c and if_cdcereg.h * * This software is available to you under a choice of one of two * licenses. You may choose this file to be licensed under the terms * of the GNU General Public License (GPL) Version 2 or the 2-clause * BSD license listed below: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <linux/module.h> #include <linux/init.h> #include <linux/netdevice.h> #include <linux/ctype.h> #include <linux/ethtool.h> #include <linux/workqueue.h> #include <linux/mii.h> #include <linux/crc32.h> #include <linux/usb.h> #include <linux/hrtimer.h> #include <linux/atomic.h> #include <linux/usb/usbnet.h> #include <linux/usb/cdc.h> #define DRIVER_VERSION "14-Mar-2012" /* CDC NCM subclass 3.2.1 */ #define USB_CDC_NCM_NDP16_LENGTH_MIN 0x10 /* Maximum NTB length */ #define CDC_NCM_NTB_MAX_SIZE_TX 32768 /* bytes */ #define CDC_NCM_NTB_MAX_SIZE_RX 32768 /* bytes */ /* Minimum value for MaxDatagramSize, ch. 6.2.9 */ #define CDC_NCM_MIN_DATAGRAM_SIZE 1514 /* bytes */ #define CDC_NCM_MIN_TX_PKT 512 /* bytes */ /* Default value for MaxDatagramSize */ #define CDC_NCM_MAX_DATAGRAM_SIZE 8192 /* bytes */ /* * Maximum amount of datagrams in NCM Datagram Pointer Table, not counting * the last NULL entry. */ #define CDC_NCM_DPT_DATAGRAMS_MAX 40 /* Restart the timer, if amount of datagrams is less than given value */ #define CDC_NCM_RESTART_TIMER_DATAGRAM_CNT 3 #define CDC_NCM_TIMER_PENDING_CNT 2 #define CDC_NCM_TIMER_INTERVAL (400UL * NSEC_PER_USEC) /* The following macro defines the minimum header space */ #define CDC_NCM_MIN_HDR_SIZE \ (sizeof(struct usb_cdc_ncm_nth16) + sizeof(struct usb_cdc_ncm_ndp16) + \ (CDC_NCM_DPT_DATAGRAMS_MAX + 1) * sizeof(struct usb_cdc_ncm_dpe16)) struct cdc_ncm_data { struct usb_cdc_ncm_nth16 nth16; struct usb_cdc_ncm_ndp16 ndp16; struct usb_cdc_ncm_dpe16 dpe16[CDC_NCM_DPT_DATAGRAMS_MAX + 1]; }; struct cdc_ncm_ctx { struct cdc_ncm_data tx_ncm; struct usb_cdc_ncm_ntb_parameters ncm_parm; struct hrtimer tx_timer; struct tasklet_struct bh; const struct usb_cdc_ncm_desc *func_desc; const struct usb_cdc_header_desc *header_desc; const struct usb_cdc_union_desc *union_desc; const struct usb_cdc_ether_desc *ether_desc; struct net_device *netdev; struct usb_device *udev; struct usb_host_endpoint *in_ep; struct usb_host_endpoint *out_ep; struct usb_host_endpoint *status_ep; struct usb_interface *intf; struct usb_interface *control; struct usb_interface *data; struct sk_buff *tx_curr_skb; struct sk_buff *tx_rem_skb; spinlock_t mtx; atomic_t stop; u32 tx_timer_pending; u32 tx_curr_offset; u32 tx_curr_last_offset; u32 tx_curr_frame_num; u32 rx_speed; u32 tx_speed; u32 rx_max; u32 tx_max; u32 max_datagram_size; u16 tx_max_datagrams; u16 tx_remainder; u16 tx_modulus; u16 tx_ndp_modulus; u16 tx_seq; u16 rx_seq; u16 connected; }; static void cdc_ncm_txpath_bh(unsigned long param); static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx); static enum hrtimer_restart cdc_ncm_tx_timer_cb(struct hrtimer *hr_timer); static struct usb_driver cdc_ncm_driver; static void cdc_ncm_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) { struct usbnet *dev = netdev_priv(net); strncpy(info->driver, dev->driver_name, sizeof(info->driver)); strncpy(info->version, DRIVER_VERSION, sizeof(info->version)); strncpy(info->fw_version, dev->driver_info->description, sizeof(info->fw_version)); usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info)); } static u8 cdc_ncm_setup(struct cdc_ncm_ctx *ctx) { u32 val; u8 flags; u8 iface_no; int err; u16 ntb_fmt_supported; iface_no = ctx->control->cur_altsetting->desc.bInterfaceNumber; err = usb_control_msg(ctx->udev, usb_rcvctrlpipe(ctx->udev, 0), USB_CDC_GET_NTB_PARAMETERS, USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, 0, iface_no, &ctx->ncm_parm, sizeof(ctx->ncm_parm), 10000); if (err < 0) { pr_debug("failed GET_NTB_PARAMETERS\n"); return 1; } /* read correct set of parameters according to device mode */ ctx->rx_max = le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize); ctx->tx_max = le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize); ctx->tx_remainder = le16_to_cpu(ctx->ncm_parm.wNdpOutPayloadRemainder); ctx->tx_modulus = le16_to_cpu(ctx->ncm_parm.wNdpOutDivisor); ctx->tx_ndp_modulus = le16_to_cpu(ctx->ncm_parm.wNdpOutAlignment); /* devices prior to NCM Errata shall set this field to zero */ ctx->tx_max_datagrams = le16_to_cpu(ctx->ncm_parm.wNtbOutMaxDatagrams); ntb_fmt_supported = le16_to_cpu(ctx->ncm_parm.bmNtbFormatsSupported); if (ctx->func_desc != NULL) flags = ctx->func_desc->bmNetworkCapabilities; else flags = 0; pr_debug("dwNtbInMaxSize=%u dwNtbOutMaxSize=%u " "wNdpOutPayloadRemainder=%u wNdpOutDivisor=%u " "wNdpOutAlignment=%u wNtbOutMaxDatagrams=%u flags=0x%x\n", ctx->rx_max, ctx->tx_max, ctx->tx_remainder, ctx->tx_modulus, ctx->tx_ndp_modulus, ctx->tx_max_datagrams, flags); /* max count of tx datagrams */ if ((ctx->tx_max_datagrams == 0) || (ctx->tx_max_datagrams > CDC_NCM_DPT_DATAGRAMS_MAX)) ctx->tx_max_datagrams = CDC_NCM_DPT_DATAGRAMS_MAX; /* verify maximum size of received NTB in bytes */ if (ctx->rx_max < USB_CDC_NCM_NTB_MIN_IN_SIZE) { pr_debug("Using min receive length=%d\n", USB_CDC_NCM_NTB_MIN_IN_SIZE); ctx->rx_max = USB_CDC_NCM_NTB_MIN_IN_SIZE; } if (ctx->rx_max > CDC_NCM_NTB_MAX_SIZE_RX) { pr_debug("Using default maximum receive length=%d\n", CDC_NCM_NTB_MAX_SIZE_RX); ctx->rx_max = CDC_NCM_NTB_MAX_SIZE_RX; } /* inform device about NTB input size changes */ if (ctx->rx_max != le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize)) { if (flags & USB_CDC_NCM_NCAP_NTB_INPUT_SIZE) { struct usb_cdc_ncm_ndp_input_size *ndp_in_sz; ndp_in_sz = kzalloc(sizeof(*ndp_in_sz), GFP_KERNEL); if (!ndp_in_sz) { err = -ENOMEM; goto size_err; } err = usb_control_msg(ctx->udev, usb_sndctrlpipe(ctx->udev, 0), USB_CDC_SET_NTB_INPUT_SIZE, USB_TYPE_CLASS | USB_DIR_OUT | USB_RECIP_INTERFACE, 0, iface_no, ndp_in_sz, 8, 1000); kfree(ndp_in_sz); } else { __le32 *dwNtbInMaxSize; dwNtbInMaxSize = kzalloc(sizeof(*dwNtbInMaxSize), GFP_KERNEL); if (!dwNtbInMaxSize) { err = -ENOMEM; goto size_err; } *dwNtbInMaxSize = cpu_to_le32(ctx->rx_max); err = usb_control_msg(ctx->udev, usb_sndctrlpipe(ctx->udev, 0), USB_CDC_SET_NTB_INPUT_SIZE, USB_TYPE_CLASS | USB_DIR_OUT | USB_RECIP_INTERFACE, 0, iface_no, dwNtbInMaxSize, 4, 1000); kfree(dwNtbInMaxSize); } size_err: if (err < 0) pr_debug("Setting NTB Input Size failed\n"); } /* verify maximum size of transmitted NTB in bytes */ if ((ctx->tx_max < (CDC_NCM_MIN_HDR_SIZE + CDC_NCM_MIN_DATAGRAM_SIZE)) || (ctx->tx_max > CDC_NCM_NTB_MAX_SIZE_TX)) { pr_debug("Using default maximum transmit length=%d\n", CDC_NCM_NTB_MAX_SIZE_TX); ctx->tx_max = CDC_NCM_NTB_MAX_SIZE_TX; } /* * verify that the structure alignment is: * - power of two * - not greater than the maximum transmit length * - not less than four bytes */ val = ctx->tx_ndp_modulus; if ((val < USB_CDC_NCM_NDP_ALIGN_MIN_SIZE) || (val != ((-val) & val)) || (val >= ctx->tx_max)) { pr_debug("Using default alignment: 4 bytes\n"); ctx->tx_ndp_modulus = USB_CDC_NCM_NDP_ALIGN_MIN_SIZE; } /* * verify that the payload alignment is: * - power of two * - not greater than the maximum transmit length * - not less than four bytes */ val = ctx->tx_modulus; if ((val < USB_CDC_NCM_NDP_ALIGN_MIN_SIZE) || (val != ((-val) & val)) || (val >= ctx->tx_max)) { pr_debug("Using default transmit modulus: 4 bytes\n"); ctx->tx_modulus = USB_CDC_NCM_NDP_ALIGN_MIN_SIZE; } /* verify the payload remainder */ if (ctx->tx_remainder >= ctx->tx_modulus) { pr_debug("Using default transmit remainder: 0 bytes\n"); ctx->tx_remainder = 0; } /* adjust TX-remainder according to NCM specification. */ ctx->tx_remainder = ((ctx->tx_remainder - ETH_HLEN) & (ctx->tx_modulus - 1)); /* additional configuration */ /* set CRC Mode */ if (flags & USB_CDC_NCM_NCAP_CRC_MODE) { err = usb_control_msg(ctx->udev, usb_sndctrlpipe(ctx->udev, 0), USB_CDC_SET_CRC_MODE, USB_TYPE_CLASS | USB_DIR_OUT | USB_RECIP_INTERFACE, USB_CDC_NCM_CRC_NOT_APPENDED, iface_no, NULL, 0, 1000); if (err < 0) pr_debug("Setting CRC mode off failed\n"); } /* set NTB format, if both formats are supported */ if (ntb_fmt_supported & USB_CDC_NCM_NTH32_SIGN) { err = usb_control_msg(ctx->udev, usb_sndctrlpipe(ctx->udev, 0), USB_CDC_SET_NTB_FORMAT, USB_TYPE_CLASS | USB_DIR_OUT | USB_RECIP_INTERFACE, USB_CDC_NCM_NTB16_FORMAT, iface_no, NULL, 0, 1000); if (err < 0) pr_debug("Setting NTB format to 16-bit failed\n"); } ctx->max_datagram_size = CDC_NCM_MIN_DATAGRAM_SIZE; /* set Max Datagram Size (MTU) */ if (flags & USB_CDC_NCM_NCAP_MAX_DATAGRAM_SIZE) { __le16 *max_datagram_size; u16 eth_max_sz = le16_to_cpu(ctx->ether_desc->wMaxSegmentSize); max_datagram_size = kzalloc(sizeof(*max_datagram_size), GFP_KERNEL); if (!max_datagram_size) { err = -ENOMEM; goto max_dgram_err; } err = usb_control_msg(ctx->udev, usb_rcvctrlpipe(ctx->udev, 0), USB_CDC_GET_MAX_DATAGRAM_SIZE, USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, 0, iface_no, max_datagram_size, 2, 1000); if (err < 0) { pr_debug("GET_MAX_DATAGRAM_SIZE failed, use size=%u\n", CDC_NCM_MIN_DATAGRAM_SIZE); } else { ctx->max_datagram_size = le16_to_cpu(*max_datagram_size); /* Check Eth descriptor value */ if (ctx->max_datagram_size > eth_max_sz) ctx->max_datagram_size = eth_max_sz; if (ctx->max_datagram_size > CDC_NCM_MAX_DATAGRAM_SIZE) ctx->max_datagram_size = CDC_NCM_MAX_DATAGRAM_SIZE; if (ctx->max_datagram_size < CDC_NCM_MIN_DATAGRAM_SIZE) ctx->max_datagram_size = CDC_NCM_MIN_DATAGRAM_SIZE; /* if value changed, update device */ if (ctx->max_datagram_size != le16_to_cpu(*max_datagram_size)) { err = usb_control_msg(ctx->udev, usb_sndctrlpipe(ctx->udev, 0), USB_CDC_SET_MAX_DATAGRAM_SIZE, USB_TYPE_CLASS | USB_DIR_OUT | USB_RECIP_INTERFACE, 0, iface_no, max_datagram_size, 2, 1000); if (err < 0) pr_debug("SET_MAX_DGRAM_SIZE failed\n"); } } kfree(max_datagram_size); } max_dgram_err: if (ctx->netdev->mtu != (ctx->max_datagram_size - ETH_HLEN)) ctx->netdev->mtu = ctx->max_datagram_size - ETH_HLEN; return 0; } static void cdc_ncm_find_endpoints(struct cdc_ncm_ctx *ctx, struct usb_interface *intf) { struct usb_host_endpoint *e; u8 ep; for (ep = 0; ep < intf->cur_altsetting->desc.bNumEndpoints; ep++) { e = intf->cur_altsetting->endpoint + ep; switch (e->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { case USB_ENDPOINT_XFER_INT: if (usb_endpoint_dir_in(&e->desc)) { if (ctx->status_ep == NULL) ctx->status_ep = e; } break; case USB_ENDPOINT_XFER_BULK: if (usb_endpoint_dir_in(&e->desc)) { if (ctx->in_ep == NULL) ctx->in_ep = e; } else { if (ctx->out_ep == NULL) ctx->out_ep = e; } break; default: break; } } } static void cdc_ncm_free(struct cdc_ncm_ctx *ctx) { if (ctx == NULL) return; if (ctx->tx_rem_skb != NULL) { dev_kfree_skb_any(ctx->tx_rem_skb); ctx->tx_rem_skb = NULL; } if (ctx->tx_curr_skb != NULL) { dev_kfree_skb_any(ctx->tx_curr_skb); ctx->tx_curr_skb = NULL; } kfree(ctx); } static const struct ethtool_ops cdc_ncm_ethtool_ops = { .get_drvinfo = cdc_ncm_get_drvinfo, .get_link = usbnet_get_link, .get_msglevel = usbnet_get_msglevel, .set_msglevel = usbnet_set_msglevel, .get_settings = usbnet_get_settings, .set_settings = usbnet_set_settings, .nway_reset = usbnet_nway_reset, }; static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf) { struct cdc_ncm_ctx *ctx; struct usb_driver *driver; u8 *buf; int len; int temp; u8 iface_no; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (ctx == NULL) return -ENODEV; hrtimer_init(&ctx->tx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); ctx->tx_timer.function = &cdc_ncm_tx_timer_cb; ctx->bh.data = (unsigned long)ctx; ctx->bh.func = cdc_ncm_txpath_bh; atomic_set(&ctx->stop, 0); spin_lock_init(&ctx->mtx); ctx->netdev = dev->net; /* store ctx pointer in device data field */ dev->data[0] = (unsigned long)ctx; /* get some pointers */ driver = driver_of(intf); buf = intf->cur_altsetting->extra; len = intf->cur_altsetting->extralen; ctx->udev = dev->udev; ctx->intf = intf; /* parse through descriptors associated with control interface */ while ((len > 0) && (buf[0] > 2) && (buf[0] <= len)) { if (buf[1] != USB_DT_CS_INTERFACE) goto advance; switch (buf[2]) { case USB_CDC_UNION_TYPE: if (buf[0] < sizeof(*(ctx->union_desc))) break; ctx->union_desc = (const struct usb_cdc_union_desc *)buf; ctx->control = usb_ifnum_to_if(dev->udev, ctx->union_desc->bMasterInterface0); ctx->data = usb_ifnum_to_if(dev->udev, ctx->union_desc->bSlaveInterface0); break; case USB_CDC_ETHERNET_TYPE: if (buf[0] < sizeof(*(ctx->ether_desc))) break; ctx->ether_desc = (const struct usb_cdc_ether_desc *)buf; dev->hard_mtu = le16_to_cpu(ctx->ether_desc->wMaxSegmentSize); if (dev->hard_mtu < CDC_NCM_MIN_DATAGRAM_SIZE) dev->hard_mtu = CDC_NCM_MIN_DATAGRAM_SIZE; else if (dev->hard_mtu > CDC_NCM_MAX_DATAGRAM_SIZE) dev->hard_mtu = CDC_NCM_MAX_DATAGRAM_SIZE; break; case USB_CDC_NCM_TYPE: if (buf[0] < sizeof(*(ctx->func_desc))) break; ctx->func_desc = (const struct usb_cdc_ncm_desc *)buf; break; default: break; } advance: /* advance to next descriptor */ temp = buf[0]; buf += temp; len -= temp; } /* check if we got everything */ if ((ctx->control == NULL) || (ctx->data == NULL) || (ctx->ether_desc == NULL) || (ctx->control != intf)) goto error; /* claim interfaces, if any */ temp = usb_driver_claim_interface(driver, ctx->data, dev); if (temp) goto error; iface_no = ctx->data->cur_altsetting->desc.bInterfaceNumber; /* reset data interface */ temp = usb_set_interface(dev->udev, iface_no, 0); if (temp) goto error2; /* initialize data interface */ if (cdc_ncm_setup(ctx)) goto error2; /* configure data interface */ temp = usb_set_interface(dev->udev, iface_no, 1); if (temp) goto error2; cdc_ncm_find_endpoints(ctx, ctx->data); cdc_ncm_find_endpoints(ctx, ctx->control); if ((ctx->in_ep == NULL) || (ctx->out_ep == NULL) || (ctx->status_ep == NULL)) goto error2; dev->net->ethtool_ops = &cdc_ncm_ethtool_ops; usb_set_intfdata(ctx->data, dev); usb_set_intfdata(ctx->control, dev); usb_set_intfdata(ctx->intf, dev); temp = usbnet_get_ethernet_addr(dev, ctx->ether_desc->iMACAddress); if (temp) goto error2; dev_info(&dev->udev->dev, "MAC-Address: %pM\n", dev->net->dev_addr); dev->in = usb_rcvbulkpipe(dev->udev, ctx->in_ep->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); dev->out = usb_sndbulkpipe(dev->udev, ctx->out_ep->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); dev->status = ctx->status_ep; dev->rx_urb_size = ctx->rx_max; /* * We should get an event when network connection is "connected" or * "disconnected". Set network connection in "disconnected" state * (carrier is OFF) during attach, so the IP network stack does not * start IPv6 negotiation and more. */ netif_carrier_off(dev->net); ctx->tx_speed = ctx->rx_speed = 0; return 0; error2: usb_set_intfdata(ctx->control, NULL); usb_set_intfdata(ctx->data, NULL); usb_driver_release_interface(driver, ctx->data); error: cdc_ncm_free((struct cdc_ncm_ctx *)dev->data[0]); dev->data[0] = 0; dev_info(&dev->udev->dev, "bind() failure\n"); return -ENODEV; } static void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf) { struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; struct usb_driver *driver = driver_of(intf); if (ctx == NULL) return; /* no setup */ atomic_set(&ctx->stop, 1); if (hrtimer_active(&ctx->tx_timer)) hrtimer_cancel(&ctx->tx_timer); tasklet_kill(&ctx->bh); /* disconnect master --> disconnect slave */ if (intf == ctx->control && ctx->data) { usb_set_intfdata(ctx->data, NULL); usb_driver_release_interface(driver, ctx->data); ctx->data = NULL; } else if (intf == ctx->data && ctx->control) { usb_set_intfdata(ctx->control, NULL); usb_driver_release_interface(driver, ctx->control); ctx->control = NULL; } usb_set_intfdata(ctx->intf, NULL); cdc_ncm_free(ctx); } static void cdc_ncm_zero_fill(u8 *ptr, u32 first, u32 end, u32 max) { if (first >= max) return; if (first >= end) return; if (end > max) end = max; memset(ptr + first, 0, end - first); } static struct sk_buff * cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb) { struct sk_buff *skb_out; u32 rem; u32 offset; u32 last_offset; u16 n = 0, index; u8 ready2send = 0; /* if there is a remaining skb, it gets priority */ if (skb != NULL) swap(skb, ctx->tx_rem_skb); else ready2send = 1; /* * +----------------+ * | skb_out | * +----------------+ * ^ offset * ^ last_offset */ /* check if we are resuming an OUT skb */ if (ctx->tx_curr_skb != NULL) { /* pop variables */ skb_out = ctx->tx_curr_skb; offset = ctx->tx_curr_offset; last_offset = ctx->tx_curr_last_offset; n = ctx->tx_curr_frame_num; } else { /* reset variables */ skb_out = alloc_skb((ctx->tx_max + 1), GFP_ATOMIC); if (skb_out == NULL) { if (skb != NULL) { dev_kfree_skb_any(skb); ctx->netdev->stats.tx_dropped++; } goto exit_no_skb; } /* make room for NTH and NDP */ offset = ALIGN(sizeof(struct usb_cdc_ncm_nth16), ctx->tx_ndp_modulus) + sizeof(struct usb_cdc_ncm_ndp16) + (ctx->tx_max_datagrams + 1) * sizeof(struct usb_cdc_ncm_dpe16); /* store last valid offset before alignment */ last_offset = offset; /* align first Datagram offset correctly */ offset = ALIGN(offset, ctx->tx_modulus) + ctx->tx_remainder; /* zero buffer till the first IP datagram */ cdc_ncm_zero_fill(skb_out->data, 0, offset, offset); n = 0; ctx->tx_curr_frame_num = 0; } for (; n < ctx->tx_max_datagrams; n++) { /* check if end of transmit buffer is reached */ if (offset >= ctx->tx_max) { ready2send = 1; break; } /* compute maximum buffer size */ rem = ctx->tx_max - offset; if (skb == NULL) { skb = ctx->tx_rem_skb; ctx->tx_rem_skb = NULL; /* check for end of skb */ if (skb == NULL) break; } if (skb->len > rem) { if (n == 0) { /* won't fit, MTU problem? */ dev_kfree_skb_any(skb); skb = NULL; ctx->netdev->stats.tx_dropped++; } else { /* no room for skb - store for later */ if (ctx->tx_rem_skb != NULL) { dev_kfree_skb_any(ctx->tx_rem_skb); ctx->netdev->stats.tx_dropped++; } ctx->tx_rem_skb = skb; skb = NULL; ready2send = 1; } break; } memcpy(((u8 *)skb_out->data) + offset, skb->data, skb->len); ctx->tx_ncm.dpe16[n].wDatagramLength = cpu_to_le16(skb->len); ctx->tx_ncm.dpe16[n].wDatagramIndex = cpu_to_le16(offset); /* update offset */ offset += skb->len; /* store last valid offset before alignment */ last_offset = offset; /* align offset correctly */ offset = ALIGN(offset, ctx->tx_modulus) + ctx->tx_remainder; /* zero padding */ cdc_ncm_zero_fill(skb_out->data, last_offset, offset, ctx->tx_max); dev_kfree_skb_any(skb); skb = NULL; } /* free up any dangling skb */ if (skb != NULL) { dev_kfree_skb_any(skb); skb = NULL; ctx->netdev->stats.tx_dropped++; } ctx->tx_curr_frame_num = n; if (n == 0) { /* wait for more frames */ /* push variables */ ctx->tx_curr_skb = skb_out; ctx->tx_curr_offset = offset; ctx->tx_curr_last_offset = last_offset; goto exit_no_skb; } else if ((n < ctx->tx_max_datagrams) && (ready2send == 0)) { /* wait for more frames */ /* push variables */ ctx->tx_curr_skb = skb_out; ctx->tx_curr_offset = offset; ctx->tx_curr_last_offset = last_offset; /* set the pending count */ if (n < CDC_NCM_RESTART_TIMER_DATAGRAM_CNT) ctx->tx_timer_pending = CDC_NCM_TIMER_PENDING_CNT; goto exit_no_skb; } else { /* frame goes out */ /* variables will be reset at next call */ } /* check for overflow */ if (last_offset > ctx->tx_max) last_offset = ctx->tx_max; /* revert offset */ offset = last_offset; /* * If collected data size is less or equal CDC_NCM_MIN_TX_PKT bytes, * we send buffers as it is. If we get more data, it would be more * efficient for USB HS mobile device with DMA engine to receive a full * size NTB, than canceling DMA transfer and receiving a short packet. */ if (offset > CDC_NCM_MIN_TX_PKT) offset = ctx->tx_max; /* final zero padding */ cdc_ncm_zero_fill(skb_out->data, last_offset, offset, ctx->tx_max); /* store last offset */ last_offset = offset; if (((last_offset < ctx->tx_max) && ((last_offset % le16_to_cpu(ctx->out_ep->desc.wMaxPacketSize)) == 0)) || (((last_offset == ctx->tx_max) && ((ctx->tx_max % le16_to_cpu(ctx->out_ep->desc.wMaxPacketSize)) == 0)) && (ctx->tx_max < le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize)))) { /* force short packet */ *(((u8 *)skb_out->data) + last_offset) = 0; last_offset++; } /* zero the rest of the DPEs plus the last NULL entry */ for (; n <= CDC_NCM_DPT_DATAGRAMS_MAX; n++) { ctx->tx_ncm.dpe16[n].wDatagramLength = 0; ctx->tx_ncm.dpe16[n].wDatagramIndex = 0; } /* fill out 16-bit NTB header */ ctx->tx_ncm.nth16.dwSignature = cpu_to_le32(USB_CDC_NCM_NTH16_SIGN); ctx->tx_ncm.nth16.wHeaderLength = cpu_to_le16(sizeof(ctx->tx_ncm.nth16)); ctx->tx_ncm.nth16.wSequence = cpu_to_le16(ctx->tx_seq); ctx->tx_ncm.nth16.wBlockLength = cpu_to_le16(last_offset); index = ALIGN(sizeof(struct usb_cdc_ncm_nth16), ctx->tx_ndp_modulus); ctx->tx_ncm.nth16.wNdpIndex = cpu_to_le16(index); memcpy(skb_out->data, &(ctx->tx_ncm.nth16), sizeof(ctx->tx_ncm.nth16)); ctx->tx_seq++; /* fill out 16-bit NDP table */ ctx->tx_ncm.ndp16.dwSignature = cpu_to_le32(USB_CDC_NCM_NDP16_NOCRC_SIGN); rem = sizeof(ctx->tx_ncm.ndp16) + ((ctx->tx_curr_frame_num + 1) * sizeof(struct usb_cdc_ncm_dpe16)); ctx->tx_ncm.ndp16.wLength = cpu_to_le16(rem); ctx->tx_ncm.ndp16.wNextNdpIndex = 0; /* reserved */ memcpy(((u8 *)skb_out->data) + index, &(ctx->tx_ncm.ndp16), sizeof(ctx->tx_ncm.ndp16)); memcpy(((u8 *)skb_out->data) + index + sizeof(ctx->tx_ncm.ndp16), &(ctx->tx_ncm.dpe16), (ctx->tx_curr_frame_num + 1) * sizeof(struct usb_cdc_ncm_dpe16)); /* set frame length */ skb_put(skb_out, last_offset); /* return skb */ ctx->tx_curr_skb = NULL; ctx->netdev->stats.tx_packets += ctx->tx_curr_frame_num; return skb_out; exit_no_skb: /* Start timer, if there is a remaining skb */ if (ctx->tx_curr_skb != NULL) cdc_ncm_tx_timeout_start(ctx); return NULL; } static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx) { /* start timer, if not already started */ if (!(hrtimer_active(&ctx->tx_timer) || atomic_read(&ctx->stop))) hrtimer_start(&ctx->tx_timer, ktime_set(0, CDC_NCM_TIMER_INTERVAL), HRTIMER_MODE_REL); } static enum hrtimer_restart cdc_ncm_tx_timer_cb(struct hrtimer *timer) { struct cdc_ncm_ctx *ctx = container_of(timer, struct cdc_ncm_ctx, tx_timer); if (!atomic_read(&ctx->stop)) tasklet_schedule(&ctx->bh); return HRTIMER_NORESTART; } static void cdc_ncm_txpath_bh(unsigned long param) { struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)param; spin_lock_bh(&ctx->mtx); if (ctx->tx_timer_pending != 0) { ctx->tx_timer_pending--; cdc_ncm_tx_timeout_start(ctx); spin_unlock_bh(&ctx->mtx); } else if (ctx->netdev != NULL) { spin_unlock_bh(&ctx->mtx); netif_tx_lock_bh(ctx->netdev); usbnet_start_xmit(NULL, ctx->netdev); netif_tx_unlock_bh(ctx->netdev); } } static struct sk_buff * cdc_ncm_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags) { struct sk_buff *skb_out; struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; /* * The Ethernet API we are using does not support transmitting * multiple Ethernet frames in a single call. This driver will * accumulate multiple Ethernet frames and send out a larger * USB frame when the USB buffer is full or when a single jiffies * timeout happens. */ if (ctx == NULL) goto error; spin_lock_bh(&ctx->mtx); skb_out = cdc_ncm_fill_tx_frame(ctx, skb); spin_unlock_bh(&ctx->mtx); return skb_out; error: if (skb != NULL) dev_kfree_skb_any(skb); return NULL; } static int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in) { struct sk_buff *skb; struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; int len; int nframes; int x; int offset; struct usb_cdc_ncm_nth16 *nth16; struct usb_cdc_ncm_ndp16 *ndp16; struct usb_cdc_ncm_dpe16 *dpe16; if (ctx == NULL) goto error; if (skb_in->len < (sizeof(struct usb_cdc_ncm_nth16) + sizeof(struct usb_cdc_ncm_ndp16))) { pr_debug("frame too short\n"); goto error; } nth16 = (struct usb_cdc_ncm_nth16 *)skb_in->data; if (le32_to_cpu(nth16->dwSignature) != USB_CDC_NCM_NTH16_SIGN) { pr_debug("invalid NTH16 signature <%u>\n", le32_to_cpu(nth16->dwSignature)); goto error; } len = le16_to_cpu(nth16->wBlockLength); if (len > ctx->rx_max) { pr_debug("unsupported NTB block length %u/%u\n", len, ctx->rx_max); goto error; } if ((ctx->rx_seq + 1) != le16_to_cpu(nth16->wSequence) && (ctx->rx_seq || le16_to_cpu(nth16->wSequence)) && !((ctx->rx_seq == 0xffff) && !le16_to_cpu(nth16->wSequence))) { pr_debug("sequence number glitch prev=%d curr=%d\n", ctx->rx_seq, le16_to_cpu(nth16->wSequence)); } ctx->rx_seq = le16_to_cpu(nth16->wSequence); len = le16_to_cpu(nth16->wNdpIndex); if ((len + sizeof(struct usb_cdc_ncm_ndp16)) > skb_in->len) { pr_debug("invalid DPT16 index <%u>\n", le16_to_cpu(nth16->wNdpIndex)); goto error; } ndp16 = (struct usb_cdc_ncm_ndp16 *)(((u8 *)skb_in->data) + len); if (le32_to_cpu(ndp16->dwSignature) != USB_CDC_NCM_NDP16_NOCRC_SIGN) { pr_debug("invalid DPT16 signature <%u>\n", le32_to_cpu(ndp16->dwSignature)); goto error; } if (le16_to_cpu(ndp16->wLength) < USB_CDC_NCM_NDP16_LENGTH_MIN) { pr_debug("invalid DPT16 length <%u>\n", le32_to_cpu(ndp16->dwSignature)); goto error; } nframes = ((le16_to_cpu(ndp16->wLength) - sizeof(struct usb_cdc_ncm_ndp16)) / sizeof(struct usb_cdc_ncm_dpe16)); nframes--; /* we process NDP entries except for the last one */ len += sizeof(struct usb_cdc_ncm_ndp16); if ((len + nframes * (sizeof(struct usb_cdc_ncm_dpe16))) > skb_in->len) { pr_debug("Invalid nframes = %d\n", nframes); goto error; } dpe16 = (struct usb_cdc_ncm_dpe16 *)(((u8 *)skb_in->data) + len); for (x = 0; x < nframes; x++, dpe16++) { offset = le16_to_cpu(dpe16->wDatagramIndex); len = le16_to_cpu(dpe16->wDatagramLength); /* * CDC NCM ch. 3.7 * All entries after first NULL entry are to be ignored */ if ((offset == 0) || (len == 0)) { if (!x) goto error; /* empty NTB */ break; } /* sanity checking */ if (((offset + len) > skb_in->len) || (len > ctx->rx_max) || (len < ETH_HLEN)) { pr_debug("invalid frame detected (ignored)" "offset[%u]=%u, length=%u, skb=%p\n", x, offset, len, skb_in); if (!x) goto error; break; } else { skb = skb_clone(skb_in, GFP_ATOMIC); if (!skb) goto error; skb->len = len; skb->data = ((u8 *)skb_in->data) + offset; skb_set_tail_pointer(skb, len); usbnet_skb_return(dev, skb); } } return 1; error: return 0; } static void cdc_ncm_speed_change(struct cdc_ncm_ctx *ctx, struct usb_cdc_speed_change *data) { uint32_t rx_speed = le32_to_cpu(data->DLBitRRate); uint32_t tx_speed = le32_to_cpu(data->ULBitRate); /* * Currently the USB-NET API does not support reporting the actual * device speed. Do print it instead. */ if ((tx_speed != ctx->tx_speed) || (rx_speed != ctx->rx_speed)) { ctx->tx_speed = tx_speed; ctx->rx_speed = rx_speed; if ((tx_speed > 1000000) && (rx_speed > 1000000)) { printk(KERN_INFO KBUILD_MODNAME ": %s: %u mbit/s downlink " "%u mbit/s uplink\n", ctx->netdev->name, (unsigned int)(rx_speed / 1000000U), (unsigned int)(tx_speed / 1000000U)); } else { printk(KERN_INFO KBUILD_MODNAME ": %s: %u kbit/s downlink " "%u kbit/s uplink\n", ctx->netdev->name, (unsigned int)(rx_speed / 1000U), (unsigned int)(tx_speed / 1000U)); } } } static void cdc_ncm_status(struct usbnet *dev, struct urb *urb) { struct cdc_ncm_ctx *ctx; struct usb_cdc_notification *event; ctx = (struct cdc_ncm_ctx *)dev->data[0]; if (urb->actual_length < sizeof(*event)) return; /* test for split data in 8-byte chunks */ if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) { cdc_ncm_speed_change(ctx, (struct usb_cdc_speed_change *)urb->transfer_buffer); return; } event = urb->transfer_buffer; switch (event->bNotificationType) { case USB_CDC_NOTIFY_NETWORK_CONNECTION: /* * According to the CDC NCM specification ch.7.1 * USB_CDC_NOTIFY_NETWORK_CONNECTION notification shall be * sent by device after USB_CDC_NOTIFY_SPEED_CHANGE. */ ctx->connected = event->wValue; printk(KERN_INFO KBUILD_MODNAME ": %s: network connection:" " %sconnected\n", ctx->netdev->name, ctx->connected ? "" : "dis"); if (ctx->connected) netif_carrier_on(dev->net); else { netif_carrier_off(dev->net); ctx->tx_speed = ctx->rx_speed = 0; } break; case USB_CDC_NOTIFY_SPEED_CHANGE: if (urb->actual_length < (sizeof(*event) + sizeof(struct usb_cdc_speed_change))) set_bit(EVENT_STS_SPLIT, &dev->flags); else cdc_ncm_speed_change(ctx, (struct usb_cdc_speed_change *) &event[1]); break; default: dev_err(&dev->udev->dev, "NCM: unexpected " "notification 0x%02x!\n", event->bNotificationType); break; } } static int cdc_ncm_check_connect(struct usbnet *dev) { struct cdc_ncm_ctx *ctx; ctx = (struct cdc_ncm_ctx *)dev->data[0]; if (ctx == NULL) return 1; /* disconnected */ return !ctx->connected; } static int cdc_ncm_probe(struct usb_interface *udev, const struct usb_device_id *prod) { return usbnet_probe(udev, prod); } static void cdc_ncm_disconnect(struct usb_interface *intf) { struct usbnet *dev = usb_get_intfdata(intf); if (dev == NULL) return; /* already disconnected */ usbnet_disconnect(intf); } static int cdc_ncm_manage_power(struct usbnet *dev, int status) { dev->intf->needs_remote_wakeup = status; return 0; } static const struct driver_info cdc_ncm_info = { .description = "CDC NCM", .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET, .bind = cdc_ncm_bind, .unbind = cdc_ncm_unbind, .check_connect = cdc_ncm_check_connect, .manage_power = cdc_ncm_manage_power, .status = cdc_ncm_status, .rx_fixup = cdc_ncm_rx_fixup, .tx_fixup = cdc_ncm_tx_fixup, }; /* Same as cdc_ncm_info, but with FLAG_WWAN */ static const struct driver_info wwan_info = { .description = "Mobile Broadband Network Device", .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN, .bind = cdc_ncm_bind, .unbind = cdc_ncm_unbind, .check_connect = cdc_ncm_check_connect, .manage_power = cdc_ncm_manage_power, .status = cdc_ncm_status, .rx_fixup = cdc_ncm_rx_fixup, .tx_fixup = cdc_ncm_tx_fixup, }; static const struct usb_device_id cdc_devs[] = { /* Ericsson MBM devices like F5521gw */ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_VENDOR, .idVendor = 0x0bdb, .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_NCM, .bInterfaceProtocol = USB_CDC_PROTO_NONE, .driver_info = (unsigned long) &wwan_info, }, /* Dell branded MBM devices like DW5550 */ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_VENDOR, .idVendor = 0x413c, .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_NCM, .bInterfaceProtocol = USB_CDC_PROTO_NONE, .driver_info = (unsigned long) &wwan_info, }, /* Toshiba branded MBM devices */ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_VENDOR, .idVendor = 0x0930, .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_NCM, .bInterfaceProtocol = USB_CDC_PROTO_NONE, .driver_info = (unsigned long) &wwan_info, }, /* Huawei NCM devices disguised as vendor specific */ { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x16), .driver_info = (unsigned long)&wwan_info, }, { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x46), .driver_info = (unsigned long)&wwan_info, }, /* Generic CDC-NCM devices */ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&cdc_ncm_info, }, { }, }; MODULE_DEVICE_TABLE(usb, cdc_devs); static struct usb_driver cdc_ncm_driver = { .name = "cdc_ncm", .id_table = cdc_devs, .probe = cdc_ncm_probe, .disconnect = cdc_ncm_disconnect, .suspend = usbnet_suspend, .resume = usbnet_resume, .reset_resume = usbnet_resume, .supports_autosuspend = 1, .disable_hub_initiated_lpm = 1, }; module_usb_driver(cdc_ncm_driver); MODULE_AUTHOR("Hans Petter Selasky"); MODULE_DESCRIPTION("USB CDC NCM host driver"); MODULE_LICENSE("Dual BSD/GPL");
Attachment:
at_clac.log
Description: Binary data