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/usb.h> 17 #include <linux/usb/serial.h> 18 #include <linux/slab.h> 19 #include "usb-wwan.h" 20 21 #define DRIVER_AUTHOR "Qualcomm Inc" 22 #define DRIVER_DESC "Qualcomm USB Serial driver" 23 24 static int debug; 25 26 static const struct usb_device_id id_table[] = { 27 {USB_DEVICE(0x05c6, 0x9211)}, /* Acer Gobi QDL device */ 28 {USB_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ 29 {USB_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */ 30 {USB_DEVICE(0x03f0, 0x201d)}, /* HP un2400 Gobi QDL Device */ 31 {USB_DEVICE(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */ 32 {USB_DEVICE(0x04da, 0x250c)}, /* Panasonic Gobi QDL device */ 33 {USB_DEVICE(0x413c, 0x8172)}, /* Dell Gobi Modem device */ 34 {USB_DEVICE(0x413c, 0x8171)}, /* Dell Gobi QDL device */ 35 {USB_DEVICE(0x1410, 0xa001)}, /* Novatel Gobi Modem device */ 36 {USB_DEVICE(0x1410, 0xa008)}, /* Novatel Gobi QDL device */ 37 {USB_DEVICE(0x0b05, 0x1776)}, /* Asus Gobi Modem device */ 38 {USB_DEVICE(0x0b05, 0x1774)}, /* Asus Gobi QDL device */ 39 {USB_DEVICE(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */ 40 {USB_DEVICE(0x19d2, 0xfff2)}, /* ONDA Gobi QDL device */ 41 {USB_DEVICE(0x1557, 0x0a80)}, /* OQO Gobi QDL device */ 42 {USB_DEVICE(0x05c6, 0x9001)}, /* Generic Gobi Modem device */ 43 {USB_DEVICE(0x05c6, 0x9002)}, /* Generic Gobi Modem device */ 44 {USB_DEVICE(0x05c6, 0x9202)}, /* Generic Gobi Modem device */ 45 {USB_DEVICE(0x05c6, 0x9203)}, /* Generic Gobi Modem device */ 46 {USB_DEVICE(0x05c6, 0x9222)}, /* Generic Gobi Modem device */ 47 {USB_DEVICE(0x05c6, 0x9008)}, /* Generic Gobi QDL device */ 48 {USB_DEVICE(0x05c6, 0x9009)}, /* Generic Gobi Modem device */ 49 {USB_DEVICE(0x05c6, 0x9201)}, /* Generic Gobi QDL device */ 50 {USB_DEVICE(0x05c6, 0x9221)}, /* Generic Gobi QDL device */ 51 {USB_DEVICE(0x05c6, 0x9231)}, /* Generic Gobi QDL device */ 52 {USB_DEVICE(0x1f45, 0x0001)}, /* Unknown Gobi QDL device */ 53 {USB_DEVICE(0x413c, 0x8185)}, /* Dell Gobi 2000 QDL device (N0218, VU936) */ 54 {USB_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */ 55 {USB_DEVICE(0x05c6, 0x9208)}, /* Generic Gobi 2000 QDL device */ 56 {USB_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */ 57 {USB_DEVICE(0x05c6, 0x9224)}, /* Sony Gobi 2000 QDL device (N0279, VU730) */ 58 {USB_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */ 59 {USB_DEVICE(0x05c6, 0x9244)}, /* Samsung Gobi 2000 QDL device (VL176) */ 60 {USB_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */ 61 {USB_DEVICE(0x03f0, 0x241d)}, /* HP Gobi 2000 QDL device (VP412) */ 62 {USB_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */ 63 {USB_DEVICE(0x05c6, 0x9214)}, /* Acer Gobi 2000 QDL device (VP413) */ 64 {USB_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */ 65 {USB_DEVICE(0x05c6, 0x9264)}, /* Asus Gobi 2000 QDL device (VR305) */ 66 {USB_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */ 67 {USB_DEVICE(0x05c6, 0x9234)}, /* Top Global Gobi 2000 QDL device (VR306) */ 68 {USB_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */ 69 {USB_DEVICE(0x05c6, 0x9274)}, /* iRex Technologies Gobi 2000 QDL device (VR307) */ 70 {USB_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */ 71 {USB_DEVICE(0x1199, 0x9000)}, /* Sierra Wireless Gobi 2000 QDL device (VT773) */ 72 {USB_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 73 {USB_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 74 {USB_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 75 {USB_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 76 {USB_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 77 {USB_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 78 {USB_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 79 {USB_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 80 {USB_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 81 {USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 82 {USB_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */ 83 {USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */ 84 {USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */ 85 {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */ 86 {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */ 87 { } /* Terminating entry */ 88 }; 89 MODULE_DEVICE_TABLE(usb, id_table); 90 91 static struct usb_driver qcdriver = { 92 .name = "qcserial", 93 .probe = usb_serial_probe, 94 .disconnect = usb_serial_disconnect, 95 .id_table = id_table, 96 .suspend = usb_serial_suspend, 97 .resume = usb_serial_resume, 98 .supports_autosuspend = true, 99 }; 100 101 static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) 102 { 103 struct usb_wwan_intf_private *data; 104 struct usb_host_interface *intf = serial->interface->cur_altsetting; 105 int retval = -ENODEV; 106 __u8 nintf; 107 __u8 ifnum; 108 109 dbg("%s", __func__); 110 111 nintf = serial->dev->actconfig->desc.bNumInterfaces; 112 dbg("Num Interfaces = %d", nintf); 113 ifnum = intf->desc.bInterfaceNumber; 114 dbg("This Interface = %d", ifnum); 115 116 data = kzalloc(sizeof(struct usb_wwan_intf_private), 117 GFP_KERNEL); 118 if (!data) 119 return -ENOMEM; 120 121 spin_lock_init(&data->susp_lock); 122 123 usb_enable_autosuspend(serial->dev); 124 125 switch (nintf) { 126 case 1: 127 /* QDL mode */ 128 /* Gobi 2000 has a single altsetting, older ones have two */ 129 if (serial->interface->num_altsetting == 2) 130 intf = &serial->interface->altsetting[1]; 131 else if (serial->interface->num_altsetting > 2) 132 break; 133 134 if (intf->desc.bNumEndpoints == 2 && 135 usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) && 136 usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) { 137 dbg("QDL port found"); 138 139 if (serial->interface->num_altsetting == 1) { 140 retval = 0; /* Success */ 141 break; 142 } 143 144 retval = usb_set_interface(serial->dev, ifnum, 1); 145 if (retval < 0) { 146 dev_err(&serial->dev->dev, 147 "Could not set interface, error %d\n", 148 retval); 149 retval = -ENODEV; 150 kfree(data); 151 } 152 } 153 break; 154 155 case 3: 156 case 4: 157 /* Composite mode */ 158 /* ifnum == 0 is a broadband network adapter */ 159 if (ifnum == 1) { 160 /* 161 * Diagnostics Monitor (serial line 9600 8N1) 162 * Qualcomm DM protocol 163 * use "libqcdm" (ModemManager) for communication 164 */ 165 dbg("Diagnostics Monitor found"); 166 retval = usb_set_interface(serial->dev, ifnum, 0); 167 if (retval < 0) { 168 dev_err(&serial->dev->dev, 169 "Could not set interface, error %d\n", 170 retval); 171 retval = -ENODEV; 172 kfree(data); 173 } 174 } else if (ifnum == 2) { 175 dbg("Modem port found"); 176 retval = usb_set_interface(serial->dev, ifnum, 0); 177 if (retval < 0) { 178 dev_err(&serial->dev->dev, 179 "Could not set interface, error %d\n", 180 retval); 181 retval = -ENODEV; 182 kfree(data); 183 } 184 } else if (ifnum==3) { 185 /* 186 * NMEA (serial line 9600 8N1) 187 * # echo "\$GPS_START" > /dev/ttyUSBx 188 * # echo "\$GPS_STOP" > /dev/ttyUSBx 189 */ 190 dbg("NMEA GPS interface 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 } 200 break; 201 202 default: 203 dev_err(&serial->dev->dev, 204 "unknown number of interfaces: %d\n", nintf); 205 kfree(data); 206 retval = -ENODEV; 207 } 208 209 /* Set serial->private if not returning -ENODEV */ 210 if (retval != -ENODEV) 211 usb_set_serial_data(serial, data); 212 return retval; 213 } 214 215 static void qc_release(struct usb_serial *serial) 216 { 217 struct usb_wwan_intf_private *priv = usb_get_serial_data(serial); 218 219 dbg("%s", __func__); 220 221 /* Call usb_wwan release & free the private data allocated in qcprobe */ 222 usb_wwan_release(serial); 223 usb_set_serial_data(serial, NULL); 224 kfree(priv); 225 } 226 227 static struct usb_serial_driver qcdevice = { 228 .driver = { 229 .owner = THIS_MODULE, 230 .name = "qcserial", 231 }, 232 .description = "Qualcomm USB modem", 233 .id_table = id_table, 234 .usb_driver = &qcdriver, 235 .num_ports = 1, 236 .probe = qcprobe, 237 .open = usb_wwan_open, 238 .close = usb_wwan_close, 239 .write = usb_wwan_write, 240 .write_room = usb_wwan_write_room, 241 .chars_in_buffer = usb_wwan_chars_in_buffer, 242 .attach = usb_wwan_startup, 243 .disconnect = usb_wwan_disconnect, 244 .release = qc_release, 245 #ifdef CONFIG_PM 246 .suspend = usb_wwan_suspend, 247 .resume = usb_wwan_resume, 248 #endif 249 }; 250 251 static int __init qcinit(void) 252 { 253 int retval; 254 255 retval = usb_serial_register(&qcdevice); 256 if (retval) 257 return retval; 258 259 retval = usb_register(&qcdriver); 260 if (retval) { 261 usb_serial_deregister(&qcdevice); 262 return retval; 263 } 264 265 return 0; 266 } 267 268 static void __exit qcexit(void) 269 { 270 usb_deregister(&qcdriver); 271 usb_serial_deregister(&qcdevice); 272 } 273 274 module_init(qcinit); 275 module_exit(qcexit); 276 277 MODULE_AUTHOR(DRIVER_AUTHOR); 278 MODULE_DESCRIPTION(DRIVER_DESC); 279 MODULE_LICENSE("GPL v2"); 280 281 module_param(debug, bool, S_IRUGO | S_IWUSR); 282 MODULE_PARM_DESC(debug, "Debug enabled or not"); 283