| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Qualcomm Serial USB driver |
| * |
| * Copyright (c) 2008 QUALCOMM Incorporated. |
| * Copyright (c) 2009 Greg Kroah-Hartman <gregkh@suse.de> |
| * Copyright (c) 2009 Novell Inc. |
| */ |
| |
| #include <linux/tty.h> |
| #include <linux/tty_flip.h> |
| #include <linux/module.h> |
| #include <linux/usb.h> |
| #include <linux/usb/serial.h> |
| #include <linux/slab.h> |
| #include "usb-wwan.h" |
| |
| #define DRIVER_AUTHOR "Qualcomm Inc" |
| #define DRIVER_DESC "Qualcomm USB Serial driver" |
| |
| #define QUECTEL_EC20_PID 0x9215 |
| |
| /* standard device layouts supported by this driver */ |
| enum qcserial_layouts { |
| QCSERIAL_G2K = 0, /* Gobi 2000 */ |
| QCSERIAL_G1K = 1, /* Gobi 1000 */ |
| QCSERIAL_SWI = 2, /* Sierra Wireless */ |
| QCSERIAL_HWI = 3, /* Huawei */ |
| }; |
| |
| #define DEVICE_G1K(v, p) \ |
| USB_DEVICE(v, p), .driver_info = QCSERIAL_G1K |
| #define DEVICE_SWI(v, p) \ |
| USB_DEVICE(v, p), .driver_info = QCSERIAL_SWI |
| #define DEVICE_HWI(v, p) \ |
| USB_DEVICE(v, p), .driver_info = QCSERIAL_HWI |
| |
| static const struct usb_device_id id_table[] = { |
| /* Gobi 1000 devices */ |
| {DEVICE_G1K(0x05c6, 0x9211)}, /* Acer Gobi QDL device */ |
| {DEVICE_G1K(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ |
| {DEVICE_G1K(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */ |
| {DEVICE_G1K(0x03f0, 0x201d)}, /* HP un2400 Gobi QDL Device */ |
| {DEVICE_G1K(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */ |
| {DEVICE_G1K(0x04da, 0x250c)}, /* Panasonic Gobi QDL device */ |
| {DEVICE_G1K(0x413c, 0x8172)}, /* Dell Gobi Modem device */ |
| {DEVICE_G1K(0x413c, 0x8171)}, /* Dell Gobi QDL device */ |
| {DEVICE_G1K(0x1410, 0xa001)}, /* Novatel/Verizon USB-1000 */ |
| {DEVICE_G1K(0x1410, 0xa002)}, /* Novatel Gobi Modem device */ |
| {DEVICE_G1K(0x1410, 0xa003)}, /* Novatel Gobi Modem device */ |
| {DEVICE_G1K(0x1410, 0xa004)}, /* Novatel Gobi Modem device */ |
| {DEVICE_G1K(0x1410, 0xa005)}, /* Novatel Gobi Modem device */ |
| {DEVICE_G1K(0x1410, 0xa006)}, /* Novatel Gobi Modem device */ |
| {DEVICE_G1K(0x1410, 0xa007)}, /* Novatel Gobi Modem device */ |
| {DEVICE_G1K(0x1410, 0xa008)}, /* Novatel Gobi QDL device */ |
| {DEVICE_G1K(0x0b05, 0x1776)}, /* Asus Gobi Modem device */ |
| {DEVICE_G1K(0x0b05, 0x1774)}, /* Asus Gobi QDL device */ |
| {DEVICE_G1K(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */ |
| {DEVICE_G1K(0x19d2, 0xfff2)}, /* ONDA Gobi QDL device */ |
| {DEVICE_G1K(0x1557, 0x0a80)}, /* OQO Gobi QDL device */ |
| {DEVICE_G1K(0x05c6, 0x9001)}, /* Generic Gobi Modem device */ |
| {DEVICE_G1K(0x05c6, 0x9002)}, /* Generic Gobi Modem device */ |
| {DEVICE_G1K(0x05c6, 0x9202)}, /* Generic Gobi Modem device */ |
| {DEVICE_G1K(0x05c6, 0x9203)}, /* Generic Gobi Modem device */ |
| {DEVICE_G1K(0x05c6, 0x9222)}, /* Generic Gobi Modem device */ |
| {DEVICE_G1K(0x05c6, 0x9008)}, /* Generic Gobi QDL device */ |
| {DEVICE_G1K(0x05c6, 0x9009)}, /* Generic Gobi Modem device */ |
| {DEVICE_G1K(0x05c6, 0x9201)}, /* Generic Gobi QDL device */ |
| {DEVICE_G1K(0x05c6, 0x9221)}, /* Generic Gobi QDL device */ |
| {DEVICE_G1K(0x05c6, 0x9231)}, /* Generic Gobi QDL device */ |
| {DEVICE_G1K(0x1f45, 0x0001)}, /* Unknown Gobi QDL device */ |
| {DEVICE_G1K(0x1bc7, 0x900e)}, /* Telit Gobi QDL device */ |
| |
| /* Gobi 2000 devices */ |
| {USB_DEVICE(0x1410, 0xa010)}, /* Novatel Gobi 2000 QDL device */ |
| {USB_DEVICE(0x1410, 0xa011)}, /* Novatel Gobi 2000 QDL device */ |
| {USB_DEVICE(0x1410, 0xa012)}, /* Novatel Gobi 2000 QDL device */ |
| {USB_DEVICE(0x1410, 0xa013)}, /* Novatel Gobi 2000 QDL device */ |
| {USB_DEVICE(0x1410, 0xa014)}, /* Novatel Gobi 2000 QDL device */ |
| {USB_DEVICE(0x413c, 0x8185)}, /* Dell Gobi 2000 QDL device (N0218, VU936) */ |
| {USB_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */ |
| {USB_DEVICE(0x05c6, 0x9208)}, /* Generic Gobi 2000 QDL device */ |
| {USB_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */ |
| {USB_DEVICE(0x05c6, 0x9224)}, /* Sony Gobi 2000 QDL device (N0279, VU730) */ |
| {USB_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */ |
| {USB_DEVICE(0x05c6, 0x9244)}, /* Samsung Gobi 2000 QDL device (VL176) */ |
| {USB_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */ |
| {USB_DEVICE(0x03f0, 0x241d)}, /* HP Gobi 2000 QDL device (VP412) */ |
| {USB_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */ |
| {USB_DEVICE(0x05c6, 0x9214)}, /* Acer Gobi 2000 QDL device (VP413) */ |
| {USB_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */ |
| {USB_DEVICE(0x05c6, 0x9264)}, /* Asus Gobi 2000 QDL device (VR305) */ |
| {USB_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */ |
| {USB_DEVICE(0x05c6, 0x9234)}, /* Top Global Gobi 2000 QDL device (VR306) */ |
| {USB_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */ |
| {USB_DEVICE(0x05c6, 0x9274)}, /* iRex Technologies Gobi 2000 QDL device (VR307) */ |
| {USB_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */ |
| {USB_DEVICE(0x1199, 0x9000)}, /* Sierra Wireless Gobi 2000 QDL device (VT773) */ |
| {USB_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {USB_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {USB_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {USB_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {USB_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {USB_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {USB_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {USB_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {USB_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ |
| {USB_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */ |
| {USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */ |
| {USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */ |
| {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */ |
| {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */ |
| |
| /* Gobi 3000 devices */ |
| {USB_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Gobi 3000 QDL */ |
| {USB_DEVICE(0x05c6, 0x920c)}, /* Gobi 3000 QDL */ |
| {USB_DEVICE(0x05c6, 0x920d)}, /* Gobi 3000 Composite */ |
| {USB_DEVICE(0x1410, 0xa020)}, /* Novatel Gobi 3000 QDL */ |
| {USB_DEVICE(0x1410, 0xa021)}, /* Novatel Gobi 3000 Composite */ |
| {USB_DEVICE(0x413c, 0x8193)}, /* Dell Gobi 3000 QDL */ |
| {USB_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */ |
| {USB_DEVICE(0x413c, 0x81a6)}, /* Dell DW5570 QDL (MC8805) */ |
| {USB_DEVICE(0x1199, 0x68a4)}, /* Sierra Wireless QDL */ |
| {USB_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */ |
| {USB_DEVICE(0x1199, 0x68a8)}, /* Sierra Wireless QDL */ |
| {USB_DEVICE(0x1199, 0x68a9)}, /* Sierra Wireless Modem */ |
| {USB_DEVICE(0x1199, 0x9010)}, /* Sierra Wireless Gobi 3000 QDL */ |
| {USB_DEVICE(0x1199, 0x9012)}, /* Sierra Wireless Gobi 3000 QDL */ |
| {USB_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */ |
| {USB_DEVICE(0x1199, 0x9014)}, /* Sierra Wireless Gobi 3000 QDL */ |
| {USB_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */ |
| {USB_DEVICE(0x1199, 0x9018)}, /* Sierra Wireless Gobi 3000 QDL */ |
| {USB_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */ |
| {USB_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */ |
| {USB_DEVICE(0x12D1, 0x14F0)}, /* Sony Gobi 3000 QDL */ |
| {USB_DEVICE(0x12D1, 0x14F1)}, /* Sony Gobi 3000 Composite */ |
| {USB_DEVICE(0x0AF0, 0x8120)}, /* Option GTM681W */ |
| |
| /* non-Gobi Sierra Wireless devices */ |
| {DEVICE_SWI(0x03f0, 0x4e1d)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */ |
| {DEVICE_SWI(0x0f3d, 0x68a2)}, /* Sierra Wireless MC7700 */ |
| {DEVICE_SWI(0x114f, 0x68a2)}, /* Sierra Wireless MC7750 */ |
| {DEVICE_SWI(0x1199, 0x68a2)}, /* Sierra Wireless MC7710 */ |
| {DEVICE_SWI(0x1199, 0x68c0)}, /* Sierra Wireless MC7304/MC7354 */ |
| {DEVICE_SWI(0x1199, 0x901c)}, /* Sierra Wireless EM7700 */ |
| {DEVICE_SWI(0x1199, 0x901e)}, /* Sierra Wireless EM7355 QDL */ |
| {DEVICE_SWI(0x1199, 0x901f)}, /* Sierra Wireless EM7355 */ |
| {DEVICE_SWI(0x1199, 0x9040)}, /* Sierra Wireless Modem */ |
| {DEVICE_SWI(0x1199, 0x9041)}, /* Sierra Wireless MC7305/MC7355 */ |
| {DEVICE_SWI(0x1199, 0x9051)}, /* Netgear AirCard 340U */ |
| {DEVICE_SWI(0x1199, 0x9053)}, /* Sierra Wireless Modem */ |
| {DEVICE_SWI(0x1199, 0x9054)}, /* Sierra Wireless Modem */ |
| {DEVICE_SWI(0x1199, 0x9055)}, /* Netgear AirCard 341U */ |
| {DEVICE_SWI(0x1199, 0x9056)}, /* Sierra Wireless Modem */ |
| {DEVICE_SWI(0x1199, 0x9060)}, /* Sierra Wireless Modem */ |
| {DEVICE_SWI(0x1199, 0x9061)}, /* Sierra Wireless Modem */ |
| {DEVICE_SWI(0x1199, 0x9063)}, /* Sierra Wireless EM7305 */ |
| {DEVICE_SWI(0x1199, 0x9070)}, /* Sierra Wireless MC74xx */ |
| {DEVICE_SWI(0x1199, 0x9071)}, /* Sierra Wireless MC74xx */ |
| {DEVICE_SWI(0x1199, 0x9078)}, /* Sierra Wireless EM74xx */ |
| {DEVICE_SWI(0x1199, 0x9079)}, /* Sierra Wireless EM74xx */ |
| {DEVICE_SWI(0x1199, 0x907a)}, /* Sierra Wireless EM74xx QDL */ |
| {DEVICE_SWI(0x1199, 0x907b)}, /* Sierra Wireless EM74xx */ |
| {DEVICE_SWI(0x1199, 0x9090)}, /* Sierra Wireless EM7565 QDL */ |
| {DEVICE_SWI(0x1199, 0x9091)}, /* Sierra Wireless EM7565 */ |
| {DEVICE_SWI(0x413c, 0x81a2)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */ |
| {DEVICE_SWI(0x413c, 0x81a3)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */ |
| {DEVICE_SWI(0x413c, 0x81a4)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */ |
| {DEVICE_SWI(0x413c, 0x81a8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */ |
| {DEVICE_SWI(0x413c, 0x81a9)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */ |
| {DEVICE_SWI(0x413c, 0x81b1)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */ |
| {DEVICE_SWI(0x413c, 0x81b3)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */ |
| {DEVICE_SWI(0x413c, 0x81b5)}, /* Dell Wireless 5811e QDL */ |
| {DEVICE_SWI(0x413c, 0x81b6)}, /* Dell Wireless 5811e QDL */ |
| {DEVICE_SWI(0x413c, 0x81cf)}, /* Dell Wireless 5819 */ |
| {DEVICE_SWI(0x413c, 0x81d0)}, /* Dell Wireless 5819 */ |
| {DEVICE_SWI(0x413c, 0x81d1)}, /* Dell Wireless 5818 */ |
| {DEVICE_SWI(0x413c, 0x81d2)}, /* Dell Wireless 5818 */ |
| |
| /* Huawei devices */ |
| {DEVICE_HWI(0x03f0, 0x581d)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */ |
| |
| { } /* Terminating entry */ |
| }; |
| MODULE_DEVICE_TABLE(usb, id_table); |
| |
| static int handle_quectel_ec20(struct device *dev, int ifnum) |
| { |
| int altsetting = 0; |
| |
| /* |
| * Quectel EC20 Mini PCIe LTE module layout: |
| * 0: DM/DIAG (use libqcdm from ModemManager for communication) |
| * 1: NMEA |
| * 2: AT-capable modem port |
| * 3: Modem interface |
| * 4: NDIS |
| */ |
| switch (ifnum) { |
| case 0: |
| dev_dbg(dev, "Quectel EC20 DM/DIAG interface found\n"); |
| break; |
| case 1: |
| dev_dbg(dev, "Quectel EC20 NMEA GPS interface found\n"); |
| break; |
| case 2: |
| case 3: |
| dev_dbg(dev, "Quectel EC20 Modem port found\n"); |
| break; |
| case 4: |
| /* Don't claim the QMI/net interface */ |
| altsetting = -1; |
| break; |
| } |
| |
| return altsetting; |
| } |
| |
| static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) |
| { |
| struct usb_host_interface *intf = serial->interface->cur_altsetting; |
| struct device *dev = &serial->dev->dev; |
| int retval = -ENODEV; |
| __u8 nintf; |
| __u8 ifnum; |
| int altsetting = -1; |
| bool sendsetup = false; |
| |
| /* we only support vendor specific functions */ |
| if (intf->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC) |
| goto done; |
| |
| nintf = serial->dev->actconfig->desc.bNumInterfaces; |
| dev_dbg(dev, "Num Interfaces = %d\n", nintf); |
| ifnum = intf->desc.bInterfaceNumber; |
| dev_dbg(dev, "This Interface = %d\n", ifnum); |
| |
| if (nintf == 1) { |
| /* QDL mode */ |
| /* Gobi 2000 has a single altsetting, older ones have two */ |
| if (serial->interface->num_altsetting == 2) |
| intf = &serial->interface->altsetting[1]; |
| else if (serial->interface->num_altsetting > 2) |
| goto done; |
| |
| if (intf->desc.bNumEndpoints == 2 && |
| usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) && |
| usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) { |
| dev_dbg(dev, "QDL port found\n"); |
| |
| if (serial->interface->num_altsetting == 1) |
| retval = 0; /* Success */ |
| else |
| altsetting = 1; |
| } |
| goto done; |
| |
| } |
| |
| /* default to enabling interface */ |
| altsetting = 0; |
| |
| /* |
| * Composite mode; don't bind to the QMI/net interface as that |
| * gets handled by other drivers. |
| */ |
| |
| switch (id->driver_info) { |
| case QCSERIAL_G1K: |
| /* |
| * Gobi 1K USB layout: |
| * 0: DM/DIAG (use libqcdm from ModemManager for communication) |
| * 1: serial port (doesn't respond) |
| * 2: AT-capable modem port |
| * 3: QMI/net |
| */ |
| if (nintf < 3 || nintf > 4) { |
| dev_err(dev, "unknown number of interfaces: %d\n", nintf); |
| altsetting = -1; |
| goto done; |
| } |
| |
| if (ifnum == 0) { |
| dev_dbg(dev, "Gobi 1K DM/DIAG interface found\n"); |
| altsetting = 1; |
| } else if (ifnum == 2) |
| dev_dbg(dev, "Modem port found\n"); |
| else |
| altsetting = -1; |
| break; |
| case QCSERIAL_G2K: |
| /* handle non-standard layouts */ |
| if (nintf == 5 && id->idProduct == QUECTEL_EC20_PID) { |
| altsetting = handle_quectel_ec20(dev, ifnum); |
| goto done; |
| } |
| |
| /* |
| * Gobi 2K+ USB layout: |
| * 0: QMI/net |
| * 1: DM/DIAG (use libqcdm from ModemManager for communication) |
| * 2: AT-capable modem port |
| * 3: NMEA |
| */ |
| if (nintf < 3 || nintf > 4) { |
| dev_err(dev, "unknown number of interfaces: %d\n", nintf); |
| altsetting = -1; |
| goto done; |
| } |
| |
| switch (ifnum) { |
| case 0: |
| /* Don't claim the QMI/net interface */ |
| altsetting = -1; |
| break; |
| case 1: |
| dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n"); |
| break; |
| case 2: |
| dev_dbg(dev, "Modem port found\n"); |
| break; |
| case 3: |
| /* |
| * NMEA (serial line 9600 8N1) |
| * # echo "\$GPS_START" > /dev/ttyUSBx |
| * # echo "\$GPS_STOP" > /dev/ttyUSBx |
| */ |
| dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n"); |
| break; |
| } |
| break; |
| case QCSERIAL_SWI: |
| /* |
| * Sierra Wireless layout: |
| * 0: DM/DIAG (use libqcdm from ModemManager for communication) |
| * 2: NMEA |
| * 3: AT-capable modem port |
| * 8: QMI/net |
| */ |
| switch (ifnum) { |
| case 0: |
| dev_dbg(dev, "DM/DIAG interface found\n"); |
| break; |
| case 2: |
| dev_dbg(dev, "NMEA GPS interface found\n"); |
| sendsetup = true; |
| break; |
| case 3: |
| dev_dbg(dev, "Modem port found\n"); |
| sendsetup = true; |
| break; |
| default: |
| /* don't claim any unsupported interface */ |
| altsetting = -1; |
| break; |
| } |
| break; |
| case QCSERIAL_HWI: |
| /* |
| * Huawei devices map functions by subclass + protocol |
| * instead of interface numbers. The protocol identify |
| * a specific function, while the subclass indicate a |
| * specific firmware source |
| * |
| * This is a blacklist of functions known to be |
| * non-serial. The rest are assumed to be serial and |
| * will be handled by this driver |
| */ |
| switch (intf->desc.bInterfaceProtocol) { |
| /* QMI combined (qmi_wwan) */ |
| case 0x07: |
| case 0x37: |
| case 0x67: |
| /* QMI data (qmi_wwan) */ |
| case 0x08: |
| case 0x38: |
| case 0x68: |
| /* QMI control (qmi_wwan) */ |
| case 0x09: |
| case 0x39: |
| case 0x69: |
| /* NCM like (huawei_cdc_ncm) */ |
| case 0x16: |
| case 0x46: |
| case 0x76: |
| altsetting = -1; |
| break; |
| default: |
| dev_dbg(dev, "Huawei type serial port found (%02x/%02x/%02x)\n", |
| intf->desc.bInterfaceClass, |
| intf->desc.bInterfaceSubClass, |
| intf->desc.bInterfaceProtocol); |
| } |
| break; |
| default: |
| dev_err(dev, "unsupported device layout type: %lu\n", |
| id->driver_info); |
| break; |
| } |
| |
| done: |
| if (altsetting >= 0) { |
| retval = usb_set_interface(serial->dev, ifnum, altsetting); |
| if (retval < 0) { |
| dev_err(dev, |
| "Could not set interface, error %d\n", |
| retval); |
| retval = -ENODEV; |
| } |
| } |
| |
| if (!retval) |
| usb_set_serial_data(serial, (void *)(unsigned long)sendsetup); |
| |
| return retval; |
| } |
| |
| static int qc_attach(struct usb_serial *serial) |
| { |
| struct usb_wwan_intf_private *data; |
| bool sendsetup; |
| |
| data = kzalloc(sizeof(*data), GFP_KERNEL); |
| if (!data) |
| return -ENOMEM; |
| |
| sendsetup = !!(unsigned long)(usb_get_serial_data(serial)); |
| if (sendsetup) |
| data->use_send_setup = 1; |
| |
| spin_lock_init(&data->susp_lock); |
| |
| usb_set_serial_data(serial, data); |
| |
| return 0; |
| } |
| |
| static void qc_release(struct usb_serial *serial) |
| { |
| struct usb_wwan_intf_private *priv = usb_get_serial_data(serial); |
| |
| usb_set_serial_data(serial, NULL); |
| kfree(priv); |
| } |
| |
| static struct usb_serial_driver qcdevice = { |
| .driver = { |
| .owner = THIS_MODULE, |
| .name = "qcserial", |
| }, |
| .description = "Qualcomm USB modem", |
| .id_table = id_table, |
| .num_ports = 1, |
| .probe = qcprobe, |
| .open = usb_wwan_open, |
| .close = usb_wwan_close, |
| .dtr_rts = usb_wwan_dtr_rts, |
| .write = usb_wwan_write, |
| .write_room = usb_wwan_write_room, |
| .chars_in_buffer = usb_wwan_chars_in_buffer, |
| .tiocmget = usb_wwan_tiocmget, |
| .tiocmset = usb_wwan_tiocmset, |
| .attach = qc_attach, |
| .release = qc_release, |
| .port_probe = usb_wwan_port_probe, |
| .port_remove = usb_wwan_port_remove, |
| #ifdef CONFIG_PM |
| .suspend = usb_wwan_suspend, |
| .resume = usb_wwan_resume, |
| #endif |
| }; |
| |
| static struct usb_serial_driver * const serial_drivers[] = { |
| &qcdevice, NULL |
| }; |
| |
| module_usb_serial_driver(serial_drivers, id_table); |
| |
| MODULE_AUTHOR(DRIVER_AUTHOR); |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_LICENSE("GPL v2"); |
