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, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */ 109 {USB_DEVICE(0x12D1, 0x14F0)}, /* Sony Gobi 3000 QDL */ 110 {USB_DEVICE(0x12D1, 0x14F1)}, /* Sony Gobi 3000 Composite */ 111 { } /* Terminating entry */ 112 }; 113 MODULE_DEVICE_TABLE(usb, id_table); 114 115 static struct usb_driver qcdriver = { 116 .name = "qcserial", 117 .probe = usb_serial_probe, 118 .disconnect = usb_serial_disconnect, 119 .id_table = id_table, 120 .suspend = usb_serial_suspend, 121 .resume = usb_serial_resume, 122 .supports_autosuspend = true, 123 }; 124 125 static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) 126 { 127 struct usb_wwan_intf_private *data; 128 struct usb_host_interface *intf = serial->interface->cur_altsetting; 129 int retval = -ENODEV; 130 __u8 nintf; 131 __u8 ifnum; 132 bool is_gobi1k = id->driver_info ? true : false; 133 134 dbg("%s", __func__); 135 dbg("Is Gobi 1000 = %d", is_gobi1k); 136 137 nintf = serial->dev->actconfig->desc.bNumInterfaces; 138 dbg("Num Interfaces = %d", nintf); 139 ifnum = intf->desc.bInterfaceNumber; 140 dbg("This Interface = %d", ifnum); 141 142 data = kzalloc(sizeof(struct usb_wwan_intf_private), 143 GFP_KERNEL); 144 if (!data) 145 return -ENOMEM; 146 147 spin_lock_init(&data->susp_lock); 148 149 switch (nintf) { 150 case 1: 151 /* QDL mode */ 152 /* Gobi 2000 has a single altsetting, older ones have two */ 153 if (serial->interface->num_altsetting == 2) 154 intf = &serial->interface->altsetting[1]; 155 else if (serial->interface->num_altsetting > 2) 156 break; 157 158 if (intf->desc.bNumEndpoints == 2 && 159 usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) && 160 usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) { 161 dbg("QDL port found"); 162 163 if (serial->interface->num_altsetting == 1) { 164 retval = 0; /* Success */ 165 break; 166 } 167 168 retval = usb_set_interface(serial->dev, ifnum, 1); 169 if (retval < 0) { 170 dev_err(&serial->dev->dev, 171 "Could not set interface, error %d\n", 172 retval); 173 retval = -ENODEV; 174 kfree(data); 175 } 176 } 177 break; 178 179 case 3: 180 case 4: 181 /* Composite mode; don't bind to the QMI/net interface as that 182 * gets handled by other drivers. 183 */ 184 185 /* Gobi 1K USB layout: 186 * 0: serial port (doesn't respond) 187 * 1: serial port (doesn't respond) 188 * 2: AT-capable modem port 189 * 3: QMI/net 190 * 191 * Gobi 2K+ USB layout: 192 * 0: QMI/net 193 * 1: DM/DIAG (use libqcdm from ModemManager for communication) 194 * 2: AT-capable modem port 195 * 3: NMEA 196 */ 197 198 if (ifnum == 1 && !is_gobi1k) { 199 dbg("Gobi 2K+ DM/DIAG interface found"); 200 retval = usb_set_interface(serial->dev, ifnum, 0); 201 if (retval < 0) { 202 dev_err(&serial->dev->dev, 203 "Could not set interface, error %d\n", 204 retval); 205 retval = -ENODEV; 206 kfree(data); 207 } 208 } else if (ifnum == 2) { 209 dbg("Modem port found"); 210 retval = usb_set_interface(serial->dev, ifnum, 0); 211 if (retval < 0) { 212 dev_err(&serial->dev->dev, 213 "Could not set interface, error %d\n", 214 retval); 215 retval = -ENODEV; 216 kfree(data); 217 } 218 } else if (ifnum==3 && !is_gobi1k) { 219 /* 220 * NMEA (serial line 9600 8N1) 221 * # echo "\$GPS_START" > /dev/ttyUSBx 222 * # echo "\$GPS_STOP" > /dev/ttyUSBx 223 */ 224 dbg("Gobi 2K+ NMEA GPS interface found"); 225 retval = usb_set_interface(serial->dev, ifnum, 0); 226 if (retval < 0) { 227 dev_err(&serial->dev->dev, 228 "Could not set interface, error %d\n", 229 retval); 230 retval = -ENODEV; 231 kfree(data); 232 } 233 } 234 break; 235 236 default: 237 dev_err(&serial->dev->dev, 238 "unknown number of interfaces: %d\n", nintf); 239 kfree(data); 240 retval = -ENODEV; 241 } 242 243 /* Set serial->private if not returning -ENODEV */ 244 if (retval != -ENODEV) 245 usb_set_serial_data(serial, data); 246 return retval; 247 } 248 249 static void qc_release(struct usb_serial *serial) 250 { 251 struct usb_wwan_intf_private *priv = usb_get_serial_data(serial); 252 253 dbg("%s", __func__); 254 255 /* Call usb_wwan release & free the private data allocated in qcprobe */ 256 usb_wwan_release(serial); 257 usb_set_serial_data(serial, NULL); 258 kfree(priv); 259 } 260 261 static struct usb_serial_driver qcdevice = { 262 .driver = { 263 .owner = THIS_MODULE, 264 .name = "qcserial", 265 }, 266 .description = "Qualcomm USB modem", 267 .id_table = id_table, 268 .num_ports = 1, 269 .probe = qcprobe, 270 .open = usb_wwan_open, 271 .close = usb_wwan_close, 272 .write = usb_wwan_write, 273 .write_room = usb_wwan_write_room, 274 .chars_in_buffer = usb_wwan_chars_in_buffer, 275 .attach = usb_wwan_startup, 276 .disconnect = usb_wwan_disconnect, 277 .release = qc_release, 278 #ifdef CONFIG_PM 279 .suspend = usb_wwan_suspend, 280 .resume = usb_wwan_resume, 281 #endif 282 }; 283 284 static struct usb_serial_driver * const serial_drivers[] = { 285 &qcdevice, NULL 286 }; 287 288 module_usb_serial_driver(qcdriver, serial_drivers); 289 290 MODULE_AUTHOR(DRIVER_AUTHOR); 291 MODULE_DESCRIPTION(DRIVER_DESC); 292 MODULE_LICENSE("GPL v2"); 293 294 module_param(debug, bool, S_IRUGO | S_IWUSR); 295 MODULE_PARM_DESC(debug, "Debug enabled or not"); 296