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