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