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, 0x9010)}, /* Sierra Wireless Gobi 3000 QDL */ 109 {USB_DEVICE(0x1199, 0x9012)}, /* Sierra Wireless Gobi 3000 QDL */ 110 {USB_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */ 111 {USB_DEVICE(0x1199, 0x9014)}, /* Sierra Wireless Gobi 3000 QDL */ 112 {USB_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */ 113 {USB_DEVICE(0x1199, 0x9018)}, /* Sierra Wireless Gobi 3000 QDL */ 114 {USB_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */ 115 {USB_DEVICE(0x12D1, 0x14F0)}, /* Sony Gobi 3000 QDL */ 116 {USB_DEVICE(0x12D1, 0x14F1)}, /* Sony Gobi 3000 Composite */ 117 { } /* Terminating entry */ 118 }; 119 MODULE_DEVICE_TABLE(usb, id_table); 120 121 static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) 122 { 123 struct usb_wwan_intf_private *data; 124 struct usb_host_interface *intf = serial->interface->cur_altsetting; 125 struct device *dev = &serial->dev->dev; 126 int retval = -ENODEV; 127 __u8 nintf; 128 __u8 ifnum; 129 bool is_gobi1k = id->driver_info ? true : false; 130 131 dev_dbg(dev, "Is Gobi 1000 = %d\n", is_gobi1k); 132 133 nintf = serial->dev->actconfig->desc.bNumInterfaces; 134 dev_dbg(dev, "Num Interfaces = %d\n", nintf); 135 ifnum = intf->desc.bInterfaceNumber; 136 dev_dbg(dev, "This Interface = %d\n", ifnum); 137 138 data = kzalloc(sizeof(struct usb_wwan_intf_private), 139 GFP_KERNEL); 140 if (!data) 141 return -ENOMEM; 142 143 spin_lock_init(&data->susp_lock); 144 145 switch (nintf) { 146 case 1: 147 /* QDL mode */ 148 /* Gobi 2000 has a single altsetting, older ones have two */ 149 if (serial->interface->num_altsetting == 2) 150 intf = &serial->interface->altsetting[1]; 151 else if (serial->interface->num_altsetting > 2) 152 break; 153 154 if (intf->desc.bNumEndpoints == 2 && 155 usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) && 156 usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) { 157 dev_dbg(dev, "QDL port found\n"); 158 159 if (serial->interface->num_altsetting == 1) { 160 retval = 0; /* Success */ 161 break; 162 } 163 164 retval = usb_set_interface(serial->dev, ifnum, 1); 165 if (retval < 0) { 166 dev_err(dev, 167 "Could not set interface, error %d\n", 168 retval); 169 retval = -ENODEV; 170 kfree(data); 171 } 172 } 173 break; 174 175 case 3: 176 case 4: 177 /* Composite mode; don't bind to the QMI/net interface as that 178 * gets handled by other drivers. 179 */ 180 181 /* Gobi 1K USB layout: 182 * 0: serial port (doesn't respond) 183 * 1: serial port (doesn't respond) 184 * 2: AT-capable modem port 185 * 3: QMI/net 186 * 187 * Gobi 2K+ USB layout: 188 * 0: QMI/net 189 * 1: DM/DIAG (use libqcdm from ModemManager for communication) 190 * 2: AT-capable modem port 191 * 3: NMEA 192 */ 193 194 if (ifnum == 1 && !is_gobi1k) { 195 dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n"); 196 retval = usb_set_interface(serial->dev, ifnum, 0); 197 if (retval < 0) { 198 dev_err(dev, 199 "Could not set interface, error %d\n", 200 retval); 201 retval = -ENODEV; 202 kfree(data); 203 } 204 } else if (ifnum == 2) { 205 dev_dbg(dev, "Modem port found\n"); 206 retval = usb_set_interface(serial->dev, ifnum, 0); 207 if (retval < 0) { 208 dev_err(dev, 209 "Could not set interface, error %d\n", 210 retval); 211 retval = -ENODEV; 212 kfree(data); 213 } 214 } else if (ifnum==3 && !is_gobi1k) { 215 /* 216 * NMEA (serial line 9600 8N1) 217 * # echo "\$GPS_START" > /dev/ttyUSBx 218 * # echo "\$GPS_STOP" > /dev/ttyUSBx 219 */ 220 dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n"); 221 retval = usb_set_interface(serial->dev, ifnum, 0); 222 if (retval < 0) { 223 dev_err(dev, 224 "Could not set interface, error %d\n", 225 retval); 226 retval = -ENODEV; 227 kfree(data); 228 } 229 } 230 break; 231 232 default: 233 dev_err(dev, "unknown number of interfaces: %d\n", nintf); 234 kfree(data); 235 retval = -ENODEV; 236 } 237 238 /* Set serial->private if not returning -ENODEV */ 239 if (retval != -ENODEV) 240 usb_set_serial_data(serial, data); 241 return retval; 242 } 243 244 static void qc_release(struct usb_serial *serial) 245 { 246 struct usb_wwan_intf_private *priv = usb_get_serial_data(serial); 247 248 /* Call usb_wwan release & free the private data allocated in qcprobe */ 249 usb_wwan_release(serial); 250 usb_set_serial_data(serial, NULL); 251 kfree(priv); 252 } 253 254 static struct usb_serial_driver qcdevice = { 255 .driver = { 256 .owner = THIS_MODULE, 257 .name = "qcserial", 258 }, 259 .description = "Qualcomm USB modem", 260 .id_table = id_table, 261 .num_ports = 1, 262 .probe = qcprobe, 263 .open = usb_wwan_open, 264 .close = usb_wwan_close, 265 .write = usb_wwan_write, 266 .write_room = usb_wwan_write_room, 267 .chars_in_buffer = usb_wwan_chars_in_buffer, 268 .attach = usb_wwan_startup, 269 .disconnect = usb_wwan_disconnect, 270 .release = qc_release, 271 #ifdef CONFIG_PM 272 .suspend = usb_wwan_suspend, 273 .resume = usb_wwan_resume, 274 #endif 275 }; 276 277 static struct usb_serial_driver * const serial_drivers[] = { 278 &qcdevice, NULL 279 }; 280 281 module_usb_serial_driver(serial_drivers, id_table); 282 283 MODULE_AUTHOR(DRIVER_AUTHOR); 284 MODULE_DESCRIPTION(DRIVER_DESC); 285 MODULE_LICENSE("GPL v2"); 286 287 module_param(debug, bool, S_IRUGO | S_IWUSR); 288 MODULE_PARM_DESC(debug, "Debug enabled or not"); 289