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