1 /* 2 * Qualcomm Serial USB driver 3 * 4 * Copyright (c) 2008 QUALCOMM Incorporated. 5 * Copyright (c) 2009 Greg Kroah-Hartman <gregkh@suse.de> 6 * Copyright (c) 2009 Novell Inc. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License version 10 * 2 as published by the Free Software Foundation. 11 * 12 */ 13 14 #include <linux/tty.h> 15 #include <linux/tty_flip.h> 16 #include <linux/module.h> 17 #include <linux/usb.h> 18 #include <linux/usb/serial.h> 19 #include <linux/slab.h> 20 #include "usb-wwan.h" 21 22 #define DRIVER_AUTHOR "Qualcomm Inc" 23 #define DRIVER_DESC "Qualcomm USB Serial driver" 24 25 #define QUECTEL_EC20_PID 0x9215 26 27 /* standard device layouts supported by this driver */ 28 enum qcserial_layouts { 29 QCSERIAL_G2K = 0, /* Gobi 2000 */ 30 QCSERIAL_G1K = 1, /* Gobi 1000 */ 31 QCSERIAL_SWI = 2, /* Sierra Wireless */ 32 QCSERIAL_HWI = 3, /* Huawei */ 33 }; 34 35 #define DEVICE_G1K(v, p) \ 36 USB_DEVICE(v, p), .driver_info = QCSERIAL_G1K 37 #define DEVICE_SWI(v, p) \ 38 USB_DEVICE(v, p), .driver_info = QCSERIAL_SWI 39 #define DEVICE_HWI(v, p) \ 40 USB_DEVICE(v, p), .driver_info = QCSERIAL_HWI 41 42 static const struct usb_device_id id_table[] = { 43 /* Gobi 1000 devices */ 44 {DEVICE_G1K(0x05c6, 0x9211)}, /* Acer Gobi QDL device */ 45 {DEVICE_G1K(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ 46 {DEVICE_G1K(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */ 47 {DEVICE_G1K(0x03f0, 0x201d)}, /* HP un2400 Gobi QDL Device */ 48 {DEVICE_G1K(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */ 49 {DEVICE_G1K(0x04da, 0x250c)}, /* Panasonic Gobi QDL device */ 50 {DEVICE_G1K(0x413c, 0x8172)}, /* Dell Gobi Modem device */ 51 {DEVICE_G1K(0x413c, 0x8171)}, /* Dell Gobi QDL device */ 52 {DEVICE_G1K(0x1410, 0xa001)}, /* Novatel/Verizon USB-1000 */ 53 {DEVICE_G1K(0x1410, 0xa002)}, /* Novatel Gobi Modem device */ 54 {DEVICE_G1K(0x1410, 0xa003)}, /* Novatel Gobi Modem device */ 55 {DEVICE_G1K(0x1410, 0xa004)}, /* Novatel Gobi Modem device */ 56 {DEVICE_G1K(0x1410, 0xa005)}, /* Novatel Gobi Modem device */ 57 {DEVICE_G1K(0x1410, 0xa006)}, /* Novatel Gobi Modem device */ 58 {DEVICE_G1K(0x1410, 0xa007)}, /* Novatel Gobi Modem device */ 59 {DEVICE_G1K(0x1410, 0xa008)}, /* Novatel Gobi QDL device */ 60 {DEVICE_G1K(0x0b05, 0x1776)}, /* Asus Gobi Modem device */ 61 {DEVICE_G1K(0x0b05, 0x1774)}, /* Asus Gobi QDL device */ 62 {DEVICE_G1K(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */ 63 {DEVICE_G1K(0x19d2, 0xfff2)}, /* ONDA Gobi QDL device */ 64 {DEVICE_G1K(0x1557, 0x0a80)}, /* OQO Gobi QDL device */ 65 {DEVICE_G1K(0x05c6, 0x9001)}, /* Generic Gobi Modem device */ 66 {DEVICE_G1K(0x05c6, 0x9002)}, /* Generic Gobi Modem device */ 67 {DEVICE_G1K(0x05c6, 0x9202)}, /* Generic Gobi Modem device */ 68 {DEVICE_G1K(0x05c6, 0x9203)}, /* Generic Gobi Modem device */ 69 {DEVICE_G1K(0x05c6, 0x9222)}, /* Generic Gobi Modem device */ 70 {DEVICE_G1K(0x05c6, 0x9008)}, /* Generic Gobi QDL device */ 71 {DEVICE_G1K(0x05c6, 0x9009)}, /* Generic Gobi Modem device */ 72 {DEVICE_G1K(0x05c6, 0x9201)}, /* Generic Gobi QDL device */ 73 {DEVICE_G1K(0x05c6, 0x9221)}, /* Generic Gobi QDL device */ 74 {DEVICE_G1K(0x05c6, 0x9231)}, /* Generic Gobi QDL device */ 75 {DEVICE_G1K(0x1f45, 0x0001)}, /* Unknown Gobi QDL device */ 76 {DEVICE_G1K(0x1bc7, 0x900e)}, /* Telit Gobi QDL device */ 77 78 /* Gobi 2000 devices */ 79 {USB_DEVICE(0x1410, 0xa010)}, /* Novatel Gobi 2000 QDL device */ 80 {USB_DEVICE(0x1410, 0xa011)}, /* Novatel Gobi 2000 QDL device */ 81 {USB_DEVICE(0x1410, 0xa012)}, /* Novatel Gobi 2000 QDL device */ 82 {USB_DEVICE(0x1410, 0xa013)}, /* Novatel Gobi 2000 QDL device */ 83 {USB_DEVICE(0x1410, 0xa014)}, /* Novatel Gobi 2000 QDL device */ 84 {USB_DEVICE(0x413c, 0x8185)}, /* Dell Gobi 2000 QDL device (N0218, VU936) */ 85 {USB_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */ 86 {USB_DEVICE(0x05c6, 0x9208)}, /* Generic Gobi 2000 QDL device */ 87 {USB_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */ 88 {USB_DEVICE(0x05c6, 0x9224)}, /* Sony Gobi 2000 QDL device (N0279, VU730) */ 89 {USB_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */ 90 {USB_DEVICE(0x05c6, 0x9244)}, /* Samsung Gobi 2000 QDL device (VL176) */ 91 {USB_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */ 92 {USB_DEVICE(0x03f0, 0x241d)}, /* HP Gobi 2000 QDL device (VP412) */ 93 {USB_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */ 94 {USB_DEVICE(0x05c6, 0x9214)}, /* Acer Gobi 2000 QDL device (VP413) */ 95 {USB_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */ 96 {USB_DEVICE(0x05c6, 0x9264)}, /* Asus Gobi 2000 QDL device (VR305) */ 97 {USB_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */ 98 {USB_DEVICE(0x05c6, 0x9234)}, /* Top Global Gobi 2000 QDL device (VR306) */ 99 {USB_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */ 100 {USB_DEVICE(0x05c6, 0x9274)}, /* iRex Technologies Gobi 2000 QDL device (VR307) */ 101 {USB_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */ 102 {USB_DEVICE(0x1199, 0x9000)}, /* Sierra Wireless Gobi 2000 QDL device (VT773) */ 103 {USB_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 104 {USB_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 105 {USB_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 106 {USB_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 107 {USB_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 108 {USB_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 109 {USB_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 110 {USB_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 111 {USB_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 112 {USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 113 {USB_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */ 114 {USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */ 115 {USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */ 116 {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */ 117 {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */ 118 119 /* Gobi 3000 devices */ 120 {USB_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Gobi 3000 QDL */ 121 {USB_DEVICE(0x05c6, 0x920c)}, /* Gobi 3000 QDL */ 122 {USB_DEVICE(0x05c6, 0x920d)}, /* Gobi 3000 Composite */ 123 {USB_DEVICE(0x1410, 0xa020)}, /* Novatel Gobi 3000 QDL */ 124 {USB_DEVICE(0x1410, 0xa021)}, /* Novatel Gobi 3000 Composite */ 125 {USB_DEVICE(0x413c, 0x8193)}, /* Dell Gobi 3000 QDL */ 126 {USB_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */ 127 {USB_DEVICE(0x413c, 0x81a6)}, /* Dell DW5570 QDL (MC8805) */ 128 {USB_DEVICE(0x1199, 0x68a4)}, /* Sierra Wireless QDL */ 129 {USB_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */ 130 {USB_DEVICE(0x1199, 0x68a8)}, /* Sierra Wireless QDL */ 131 {USB_DEVICE(0x1199, 0x68a9)}, /* Sierra Wireless Modem */ 132 {USB_DEVICE(0x1199, 0x9010)}, /* Sierra Wireless Gobi 3000 QDL */ 133 {USB_DEVICE(0x1199, 0x9012)}, /* Sierra Wireless Gobi 3000 QDL */ 134 {USB_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */ 135 {USB_DEVICE(0x1199, 0x9014)}, /* Sierra Wireless Gobi 3000 QDL */ 136 {USB_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */ 137 {USB_DEVICE(0x1199, 0x9018)}, /* Sierra Wireless Gobi 3000 QDL */ 138 {USB_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */ 139 {USB_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */ 140 {USB_DEVICE(0x12D1, 0x14F0)}, /* Sony Gobi 3000 QDL */ 141 {USB_DEVICE(0x12D1, 0x14F1)}, /* Sony Gobi 3000 Composite */ 142 {USB_DEVICE(0x0AF0, 0x8120)}, /* Option GTM681W */ 143 144 /* non-Gobi Sierra Wireless devices */ 145 {DEVICE_SWI(0x03f0, 0x4e1d)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */ 146 {DEVICE_SWI(0x0f3d, 0x68a2)}, /* Sierra Wireless MC7700 */ 147 {DEVICE_SWI(0x114f, 0x68a2)}, /* Sierra Wireless MC7750 */ 148 {DEVICE_SWI(0x1199, 0x68a2)}, /* Sierra Wireless MC7710 */ 149 {DEVICE_SWI(0x1199, 0x68c0)}, /* Sierra Wireless MC7304/MC7354 */ 150 {DEVICE_SWI(0x1199, 0x901c)}, /* Sierra Wireless EM7700 */ 151 {DEVICE_SWI(0x1199, 0x901f)}, /* Sierra Wireless EM7355 */ 152 {DEVICE_SWI(0x1199, 0x9040)}, /* Sierra Wireless Modem */ 153 {DEVICE_SWI(0x1199, 0x9041)}, /* Sierra Wireless MC7305/MC7355 */ 154 {DEVICE_SWI(0x1199, 0x9051)}, /* Netgear AirCard 340U */ 155 {DEVICE_SWI(0x1199, 0x9053)}, /* Sierra Wireless Modem */ 156 {DEVICE_SWI(0x1199, 0x9054)}, /* Sierra Wireless Modem */ 157 {DEVICE_SWI(0x1199, 0x9055)}, /* Netgear AirCard 341U */ 158 {DEVICE_SWI(0x1199, 0x9056)}, /* Sierra Wireless Modem */ 159 {DEVICE_SWI(0x1199, 0x9060)}, /* Sierra Wireless Modem */ 160 {DEVICE_SWI(0x1199, 0x9061)}, /* Sierra Wireless Modem */ 161 {DEVICE_SWI(0x1199, 0x9070)}, /* Sierra Wireless MC74xx */ 162 {DEVICE_SWI(0x1199, 0x9071)}, /* Sierra Wireless MC74xx */ 163 {DEVICE_SWI(0x1199, 0x9078)}, /* Sierra Wireless EM74xx */ 164 {DEVICE_SWI(0x1199, 0x9079)}, /* Sierra Wireless EM74xx */ 165 {DEVICE_SWI(0x1199, 0x907a)}, /* Sierra Wireless EM74xx QDL */ 166 {DEVICE_SWI(0x1199, 0x907b)}, /* Sierra Wireless EM74xx */ 167 {DEVICE_SWI(0x413c, 0x81a2)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */ 168 {DEVICE_SWI(0x413c, 0x81a3)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */ 169 {DEVICE_SWI(0x413c, 0x81a4)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */ 170 {DEVICE_SWI(0x413c, 0x81a8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */ 171 {DEVICE_SWI(0x413c, 0x81a9)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */ 172 {DEVICE_SWI(0x413c, 0x81b1)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */ 173 {DEVICE_SWI(0x413c, 0x81b3)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */ 174 {DEVICE_SWI(0x413c, 0x81b5)}, /* Dell Wireless 5811e QDL */ 175 {DEVICE_SWI(0x413c, 0x81b6)}, /* Dell Wireless 5811e QDL */ 176 177 /* Huawei devices */ 178 {DEVICE_HWI(0x03f0, 0x581d)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */ 179 180 { } /* Terminating entry */ 181 }; 182 MODULE_DEVICE_TABLE(usb, id_table); 183 184 static int handle_quectel_ec20(struct device *dev, int ifnum) 185 { 186 int altsetting = 0; 187 188 /* 189 * Quectel EC20 Mini PCIe LTE module layout: 190 * 0: DM/DIAG (use libqcdm from ModemManager for communication) 191 * 1: NMEA 192 * 2: AT-capable modem port 193 * 3: Modem interface 194 * 4: NDIS 195 */ 196 switch (ifnum) { 197 case 0: 198 dev_dbg(dev, "Quectel EC20 DM/DIAG interface found\n"); 199 break; 200 case 1: 201 dev_dbg(dev, "Quectel EC20 NMEA GPS interface found\n"); 202 break; 203 case 2: 204 case 3: 205 dev_dbg(dev, "Quectel EC20 Modem port found\n"); 206 break; 207 case 4: 208 /* Don't claim the QMI/net interface */ 209 altsetting = -1; 210 break; 211 } 212 213 return altsetting; 214 } 215 216 static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) 217 { 218 struct usb_host_interface *intf = serial->interface->cur_altsetting; 219 struct device *dev = &serial->dev->dev; 220 int retval = -ENODEV; 221 __u8 nintf; 222 __u8 ifnum; 223 int altsetting = -1; 224 bool sendsetup = false; 225 226 /* we only support vendor specific functions */ 227 if (intf->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC) 228 goto done; 229 230 nintf = serial->dev->actconfig->desc.bNumInterfaces; 231 dev_dbg(dev, "Num Interfaces = %d\n", nintf); 232 ifnum = intf->desc.bInterfaceNumber; 233 dev_dbg(dev, "This Interface = %d\n", ifnum); 234 235 if (nintf == 1) { 236 /* QDL mode */ 237 /* Gobi 2000 has a single altsetting, older ones have two */ 238 if (serial->interface->num_altsetting == 2) 239 intf = &serial->interface->altsetting[1]; 240 else if (serial->interface->num_altsetting > 2) 241 goto done; 242 243 if (intf->desc.bNumEndpoints == 2 && 244 usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) && 245 usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) { 246 dev_dbg(dev, "QDL port found\n"); 247 248 if (serial->interface->num_altsetting == 1) 249 retval = 0; /* Success */ 250 else 251 altsetting = 1; 252 } 253 goto done; 254 255 } 256 257 /* default to enabling interface */ 258 altsetting = 0; 259 260 /* 261 * Composite mode; don't bind to the QMI/net interface as that 262 * gets handled by other drivers. 263 */ 264 265 switch (id->driver_info) { 266 case QCSERIAL_G1K: 267 /* 268 * Gobi 1K USB layout: 269 * 0: DM/DIAG (use libqcdm from ModemManager for communication) 270 * 1: serial port (doesn't respond) 271 * 2: AT-capable modem port 272 * 3: QMI/net 273 */ 274 if (nintf < 3 || nintf > 4) { 275 dev_err(dev, "unknown number of interfaces: %d\n", nintf); 276 altsetting = -1; 277 goto done; 278 } 279 280 if (ifnum == 0) { 281 dev_dbg(dev, "Gobi 1K DM/DIAG interface found\n"); 282 altsetting = 1; 283 } else if (ifnum == 2) 284 dev_dbg(dev, "Modem port found\n"); 285 else 286 altsetting = -1; 287 break; 288 case QCSERIAL_G2K: 289 /* handle non-standard layouts */ 290 if (nintf == 5 && id->idProduct == QUECTEL_EC20_PID) { 291 altsetting = handle_quectel_ec20(dev, ifnum); 292 goto done; 293 } 294 295 /* 296 * Gobi 2K+ USB layout: 297 * 0: QMI/net 298 * 1: DM/DIAG (use libqcdm from ModemManager for communication) 299 * 2: AT-capable modem port 300 * 3: NMEA 301 */ 302 if (nintf < 3 || nintf > 4) { 303 dev_err(dev, "unknown number of interfaces: %d\n", nintf); 304 altsetting = -1; 305 goto done; 306 } 307 308 switch (ifnum) { 309 case 0: 310 /* Don't claim the QMI/net interface */ 311 altsetting = -1; 312 break; 313 case 1: 314 dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n"); 315 break; 316 case 2: 317 dev_dbg(dev, "Modem port found\n"); 318 break; 319 case 3: 320 /* 321 * NMEA (serial line 9600 8N1) 322 * # echo "\$GPS_START" > /dev/ttyUSBx 323 * # echo "\$GPS_STOP" > /dev/ttyUSBx 324 */ 325 dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n"); 326 break; 327 } 328 break; 329 case QCSERIAL_SWI: 330 /* 331 * Sierra Wireless layout: 332 * 0: DM/DIAG (use libqcdm from ModemManager for communication) 333 * 2: NMEA 334 * 3: AT-capable modem port 335 * 8: QMI/net 336 */ 337 switch (ifnum) { 338 case 0: 339 dev_dbg(dev, "DM/DIAG interface found\n"); 340 break; 341 case 2: 342 dev_dbg(dev, "NMEA GPS interface found\n"); 343 break; 344 case 3: 345 dev_dbg(dev, "Modem port found\n"); 346 sendsetup = true; 347 break; 348 default: 349 /* don't claim any unsupported interface */ 350 altsetting = -1; 351 break; 352 } 353 break; 354 case QCSERIAL_HWI: 355 /* 356 * Huawei devices map functions by subclass + protocol 357 * instead of interface numbers. The protocol identify 358 * a specific function, while the subclass indicate a 359 * specific firmware source 360 * 361 * This is a blacklist of functions known to be 362 * non-serial. The rest are assumed to be serial and 363 * will be handled by this driver 364 */ 365 switch (intf->desc.bInterfaceProtocol) { 366 /* QMI combined (qmi_wwan) */ 367 case 0x07: 368 case 0x37: 369 case 0x67: 370 /* QMI data (qmi_wwan) */ 371 case 0x08: 372 case 0x38: 373 case 0x68: 374 /* QMI control (qmi_wwan) */ 375 case 0x09: 376 case 0x39: 377 case 0x69: 378 /* NCM like (huawei_cdc_ncm) */ 379 case 0x16: 380 case 0x46: 381 case 0x76: 382 altsetting = -1; 383 break; 384 default: 385 dev_dbg(dev, "Huawei type serial port found (%02x/%02x/%02x)\n", 386 intf->desc.bInterfaceClass, 387 intf->desc.bInterfaceSubClass, 388 intf->desc.bInterfaceProtocol); 389 } 390 break; 391 default: 392 dev_err(dev, "unsupported device layout type: %lu\n", 393 id->driver_info); 394 break; 395 } 396 397 done: 398 if (altsetting >= 0) { 399 retval = usb_set_interface(serial->dev, ifnum, altsetting); 400 if (retval < 0) { 401 dev_err(dev, 402 "Could not set interface, error %d\n", 403 retval); 404 retval = -ENODEV; 405 } 406 } 407 408 if (!retval) 409 usb_set_serial_data(serial, (void *)(unsigned long)sendsetup); 410 411 return retval; 412 } 413 414 static int qc_attach(struct usb_serial *serial) 415 { 416 struct usb_wwan_intf_private *data; 417 bool sendsetup; 418 419 data = kzalloc(sizeof(*data), GFP_KERNEL); 420 if (!data) 421 return -ENOMEM; 422 423 sendsetup = !!(unsigned long)(usb_get_serial_data(serial)); 424 if (sendsetup) 425 data->use_send_setup = 1; 426 427 spin_lock_init(&data->susp_lock); 428 429 usb_set_serial_data(serial, data); 430 431 return 0; 432 } 433 434 static void qc_release(struct usb_serial *serial) 435 { 436 struct usb_wwan_intf_private *priv = usb_get_serial_data(serial); 437 438 usb_set_serial_data(serial, NULL); 439 kfree(priv); 440 } 441 442 static struct usb_serial_driver qcdevice = { 443 .driver = { 444 .owner = THIS_MODULE, 445 .name = "qcserial", 446 }, 447 .description = "Qualcomm USB modem", 448 .id_table = id_table, 449 .num_ports = 1, 450 .probe = qcprobe, 451 .open = usb_wwan_open, 452 .close = usb_wwan_close, 453 .dtr_rts = usb_wwan_dtr_rts, 454 .write = usb_wwan_write, 455 .write_room = usb_wwan_write_room, 456 .chars_in_buffer = usb_wwan_chars_in_buffer, 457 .attach = qc_attach, 458 .release = qc_release, 459 .port_probe = usb_wwan_port_probe, 460 .port_remove = usb_wwan_port_remove, 461 #ifdef CONFIG_PM 462 .suspend = usb_wwan_suspend, 463 .resume = usb_wwan_resume, 464 #endif 465 }; 466 467 static struct usb_serial_driver * const serial_drivers[] = { 468 &qcdevice, NULL 469 }; 470 471 module_usb_serial_driver(serial_drivers, id_table); 472 473 MODULE_AUTHOR(DRIVER_AUTHOR); 474 MODULE_DESCRIPTION(DRIVER_DESC); 475 MODULE_LICENSE("GPL v2"); 476