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 static bool debug; 26 27 #define DEVICE_G1K(v, p) \ 28 USB_DEVICE(v, p), .driver_info = 1 29 30 static const struct usb_device_id id_table[] = { 31 /* Gobi 1000 devices */ 32 {DEVICE_G1K(0x05c6, 0x9211)}, /* Acer Gobi QDL device */ 33 {DEVICE_G1K(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ 34 {DEVICE_G1K(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */ 35 {DEVICE_G1K(0x03f0, 0x201d)}, /* HP un2400 Gobi QDL Device */ 36 {DEVICE_G1K(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */ 37 {DEVICE_G1K(0x04da, 0x250c)}, /* Panasonic Gobi QDL device */ 38 {DEVICE_G1K(0x413c, 0x8172)}, /* Dell Gobi Modem device */ 39 {DEVICE_G1K(0x413c, 0x8171)}, /* Dell Gobi QDL device */ 40 {DEVICE_G1K(0x1410, 0xa001)}, /* Novatel Gobi Modem device */ 41 {DEVICE_G1K(0x1410, 0xa008)}, /* Novatel Gobi QDL device */ 42 {DEVICE_G1K(0x0b05, 0x1776)}, /* Asus Gobi Modem device */ 43 {DEVICE_G1K(0x0b05, 0x1774)}, /* Asus Gobi QDL device */ 44 {DEVICE_G1K(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */ 45 {DEVICE_G1K(0x19d2, 0xfff2)}, /* ONDA Gobi QDL device */ 46 {DEVICE_G1K(0x1557, 0x0a80)}, /* OQO Gobi QDL device */ 47 {DEVICE_G1K(0x05c6, 0x9001)}, /* Generic Gobi Modem device */ 48 {DEVICE_G1K(0x05c6, 0x9002)}, /* Generic Gobi Modem device */ 49 {DEVICE_G1K(0x05c6, 0x9202)}, /* Generic Gobi Modem device */ 50 {DEVICE_G1K(0x05c6, 0x9203)}, /* Generic Gobi Modem device */ 51 {DEVICE_G1K(0x05c6, 0x9222)}, /* Generic Gobi Modem device */ 52 {DEVICE_G1K(0x05c6, 0x9008)}, /* Generic Gobi QDL device */ 53 {DEVICE_G1K(0x05c6, 0x9009)}, /* Generic Gobi Modem device */ 54 {DEVICE_G1K(0x05c6, 0x9201)}, /* Generic Gobi QDL device */ 55 {DEVICE_G1K(0x05c6, 0x9221)}, /* Generic Gobi QDL device */ 56 {DEVICE_G1K(0x05c6, 0x9231)}, /* Generic Gobi QDL device */ 57 {DEVICE_G1K(0x1f45, 0x0001)}, /* Unknown Gobi QDL device */ 58 59 /* Gobi 2000 devices */ 60 {USB_DEVICE(0x1410, 0xa010)}, /* Novatel Gobi 2000 QDL device */ 61 {USB_DEVICE(0x1410, 0xa011)}, /* Novatel Gobi 2000 QDL device */ 62 {USB_DEVICE(0x1410, 0xa012)}, /* Novatel Gobi 2000 QDL device */ 63 {USB_DEVICE(0x1410, 0xa013)}, /* Novatel Gobi 2000 QDL device */ 64 {USB_DEVICE(0x1410, 0xa014)}, /* Novatel Gobi 2000 QDL device */ 65 {USB_DEVICE(0x413c, 0x8185)}, /* Dell Gobi 2000 QDL device (N0218, VU936) */ 66 {USB_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */ 67 {USB_DEVICE(0x05c6, 0x9208)}, /* Generic Gobi 2000 QDL device */ 68 {USB_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */ 69 {USB_DEVICE(0x05c6, 0x9224)}, /* Sony Gobi 2000 QDL device (N0279, VU730) */ 70 {USB_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */ 71 {USB_DEVICE(0x05c6, 0x9244)}, /* Samsung Gobi 2000 QDL device (VL176) */ 72 {USB_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */ 73 {USB_DEVICE(0x03f0, 0x241d)}, /* HP Gobi 2000 QDL device (VP412) */ 74 {USB_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */ 75 {USB_DEVICE(0x05c6, 0x9214)}, /* Acer Gobi 2000 QDL device (VP413) */ 76 {USB_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */ 77 {USB_DEVICE(0x05c6, 0x9264)}, /* Asus Gobi 2000 QDL device (VR305) */ 78 {USB_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */ 79 {USB_DEVICE(0x05c6, 0x9234)}, /* Top Global Gobi 2000 QDL device (VR306) */ 80 {USB_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */ 81 {USB_DEVICE(0x05c6, 0x9274)}, /* iRex Technologies Gobi 2000 QDL device (VR307) */ 82 {USB_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */ 83 {USB_DEVICE(0x1199, 0x9000)}, /* Sierra Wireless Gobi 2000 QDL device (VT773) */ 84 {USB_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 85 {USB_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 86 {USB_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 87 {USB_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 88 {USB_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 89 {USB_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 90 {USB_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 91 {USB_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 92 {USB_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 93 {USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 94 {USB_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */ 95 {USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */ 96 {USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */ 97 {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */ 98 {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */ 99 100 /* Gobi 3000 devices */ 101 {USB_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Gobi 3000 QDL */ 102 {USB_DEVICE(0x05c6, 0x920c)}, /* Gobi 3000 QDL */ 103 {USB_DEVICE(0x05c6, 0x920d)}, /* Gobi 3000 Composite */ 104 {USB_DEVICE(0x1410, 0xa020)}, /* Novatel Gobi 3000 QDL */ 105 {USB_DEVICE(0x1410, 0xa021)}, /* Novatel Gobi 3000 Composite */ 106 {USB_DEVICE(0x413c, 0x8193)}, /* Dell Gobi 3000 QDL */ 107 {USB_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */ 108 {USB_DEVICE(0x1199, 0x68a4)}, /* Sierra Wireless QDL */ 109 {USB_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */ 110 {USB_DEVICE(0x1199, 0x68a8)}, /* Sierra Wireless QDL */ 111 {USB_DEVICE(0x1199, 0x68a9)}, /* Sierra Wireless Modem */ 112 {USB_DEVICE(0x1199, 0x9010)}, /* Sierra Wireless Gobi 3000 QDL */ 113 {USB_DEVICE(0x1199, 0x9012)}, /* Sierra Wireless Gobi 3000 QDL */ 114 {USB_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */ 115 {USB_DEVICE(0x1199, 0x9014)}, /* Sierra Wireless Gobi 3000 QDL */ 116 {USB_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */ 117 {USB_DEVICE(0x1199, 0x9018)}, /* Sierra Wireless Gobi 3000 QDL */ 118 {USB_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */ 119 {USB_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */ 120 {USB_DEVICE(0x12D1, 0x14F0)}, /* Sony Gobi 3000 QDL */ 121 {USB_DEVICE(0x12D1, 0x14F1)}, /* Sony Gobi 3000 Composite */ 122 123 /* non Gobi Qualcomm serial devices */ 124 {USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 0)}, /* Sierra Wireless MC7700 Device Management */ 125 {USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 2)}, /* Sierra Wireless MC7700 NMEA */ 126 {USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 3)}, /* Sierra Wireless MC7700 Modem */ 127 {USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 0)}, /* Sierra Wireless MC7750 Device Management */ 128 {USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 2)}, /* Sierra Wireless MC7750 NMEA */ 129 {USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 3)}, /* Sierra Wireless MC7750 Modem */ 130 {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 0)}, /* Sierra Wireless MC7710 Device Management */ 131 {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 2)}, /* Sierra Wireless MC7710 NMEA */ 132 {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 3)}, /* Sierra Wireless MC7710 Modem */ 133 {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 0)}, /* Sierra Wireless EM7700 Device Management */ 134 {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 2)}, /* Sierra Wireless EM7700 NMEA */ 135 {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 3)}, /* Sierra Wireless EM7700 Modem */ 136 137 { } /* Terminating entry */ 138 }; 139 MODULE_DEVICE_TABLE(usb, id_table); 140 141 static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) 142 { 143 struct usb_wwan_intf_private *data; 144 struct usb_host_interface *intf = serial->interface->cur_altsetting; 145 struct device *dev = &serial->dev->dev; 146 int retval = -ENODEV; 147 __u8 nintf; 148 __u8 ifnum; 149 bool is_gobi1k = id->driver_info ? true : false; 150 int altsetting = -1; 151 152 dev_dbg(dev, "Is Gobi 1000 = %d\n", is_gobi1k); 153 154 nintf = serial->dev->actconfig->desc.bNumInterfaces; 155 dev_dbg(dev, "Num Interfaces = %d\n", nintf); 156 ifnum = intf->desc.bInterfaceNumber; 157 dev_dbg(dev, "This Interface = %d\n", ifnum); 158 159 data = kzalloc(sizeof(struct usb_wwan_intf_private), 160 GFP_KERNEL); 161 if (!data) 162 return -ENOMEM; 163 164 spin_lock_init(&data->susp_lock); 165 166 if (nintf == 1) { 167 /* QDL mode */ 168 /* Gobi 2000 has a single altsetting, older ones have two */ 169 if (serial->interface->num_altsetting == 2) 170 intf = &serial->interface->altsetting[1]; 171 else if (serial->interface->num_altsetting > 2) 172 goto done; 173 174 if (intf->desc.bNumEndpoints == 2 && 175 usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) && 176 usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) { 177 dev_dbg(dev, "QDL port found\n"); 178 179 if (serial->interface->num_altsetting == 1) 180 retval = 0; /* Success */ 181 else 182 altsetting = 1; 183 } 184 goto done; 185 186 } 187 188 /* allow any number of interfaces when doing direct interface match */ 189 if (id->match_flags & USB_DEVICE_ID_MATCH_INT_NUMBER) { 190 dev_dbg(dev, "Generic Qualcomm serial interface found\n"); 191 altsetting = 0; 192 goto done; 193 } 194 195 if (nintf < 3 || nintf > 4) { 196 dev_err(dev, "unknown number of interfaces: %d\n", nintf); 197 goto done; 198 } 199 200 /* default to enabling interface */ 201 altsetting = 0; 202 203 /* Composite mode; don't bind to the QMI/net interface as that 204 * gets handled by other drivers. 205 */ 206 207 if (is_gobi1k) { 208 /* Gobi 1K USB layout: 209 * 0: serial port (doesn't respond) 210 * 1: serial port (doesn't respond) 211 * 2: AT-capable modem port 212 * 3: QMI/net 213 */ 214 if (ifnum == 2) 215 dev_dbg(dev, "Modem port found\n"); 216 else 217 altsetting = -1; 218 } else { 219 /* Gobi 2K+ USB layout: 220 * 0: QMI/net 221 * 1: DM/DIAG (use libqcdm from ModemManager for communication) 222 * 2: AT-capable modem port 223 * 3: NMEA 224 */ 225 switch (ifnum) { 226 case 0: 227 /* Don't claim the QMI/net interface */ 228 altsetting = -1; 229 break; 230 case 1: 231 dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n"); 232 break; 233 case 2: 234 dev_dbg(dev, "Modem port found\n"); 235 break; 236 case 3: 237 /* 238 * NMEA (serial line 9600 8N1) 239 * # echo "\$GPS_START" > /dev/ttyUSBx 240 * # echo "\$GPS_STOP" > /dev/ttyUSBx 241 */ 242 dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n"); 243 break; 244 } 245 } 246 247 done: 248 if (altsetting >= 0) { 249 retval = usb_set_interface(serial->dev, ifnum, altsetting); 250 if (retval < 0) { 251 dev_err(dev, 252 "Could not set interface, error %d\n", 253 retval); 254 retval = -ENODEV; 255 } 256 } 257 258 /* Set serial->private if not returning error */ 259 if (retval == 0) 260 usb_set_serial_data(serial, data); 261 else 262 kfree(data); 263 264 return retval; 265 } 266 267 static void qc_release(struct usb_serial *serial) 268 { 269 struct usb_wwan_intf_private *priv = usb_get_serial_data(serial); 270 271 /* Free the private data allocated in qcprobe */ 272 usb_set_serial_data(serial, NULL); 273 kfree(priv); 274 } 275 276 static struct usb_serial_driver qcdevice = { 277 .driver = { 278 .owner = THIS_MODULE, 279 .name = "qcserial", 280 }, 281 .description = "Qualcomm USB modem", 282 .id_table = id_table, 283 .num_ports = 1, 284 .probe = qcprobe, 285 .open = usb_wwan_open, 286 .close = usb_wwan_close, 287 .write = usb_wwan_write, 288 .write_room = usb_wwan_write_room, 289 .chars_in_buffer = usb_wwan_chars_in_buffer, 290 .attach = usb_wwan_startup, 291 .release = qc_release, 292 .port_remove = usb_wwan_port_remove, 293 #ifdef CONFIG_PM 294 .suspend = usb_wwan_suspend, 295 .resume = usb_wwan_resume, 296 #endif 297 }; 298 299 static struct usb_serial_driver * const serial_drivers[] = { 300 &qcdevice, NULL 301 }; 302 303 module_usb_serial_driver(serial_drivers, id_table); 304 305 MODULE_AUTHOR(DRIVER_AUTHOR); 306 MODULE_DESCRIPTION(DRIVER_DESC); 307 MODULE_LICENSE("GPL v2"); 308 309 module_param(debug, bool, S_IRUGO | S_IWUSR); 310 MODULE_PARM_DESC(debug, "Debug enabled or not"); 311