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, 0x9201)}, /* Generic Gobi QDL device */ 49 {USB_DEVICE(0x05c6, 0x9221)}, /* Generic Gobi QDL device */ 50 {USB_DEVICE(0x05c6, 0x9231)}, /* Generic Gobi QDL device */ 51 {USB_DEVICE(0x1f45, 0x0001)}, /* Unknown Gobi QDL device */ 52 {USB_DEVICE(0x413c, 0x8185)}, /* Dell Gobi 2000 QDL device (N0218, VU936) */ 53 {USB_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */ 54 {USB_DEVICE(0x05c6, 0x9224)}, /* Sony Gobi 2000 QDL device (N0279, VU730) */ 55 {USB_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */ 56 {USB_DEVICE(0x05c6, 0x9244)}, /* Samsung Gobi 2000 QDL device (VL176) */ 57 {USB_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */ 58 {USB_DEVICE(0x03f0, 0x241d)}, /* HP Gobi 2000 QDL device (VP412) */ 59 {USB_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */ 60 {USB_DEVICE(0x05c6, 0x9214)}, /* Acer Gobi 2000 QDL device (VP413) */ 61 {USB_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */ 62 {USB_DEVICE(0x05c6, 0x9264)}, /* Asus Gobi 2000 QDL device (VR305) */ 63 {USB_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */ 64 {USB_DEVICE(0x05c6, 0x9234)}, /* Top Global Gobi 2000 QDL device (VR306) */ 65 {USB_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */ 66 {USB_DEVICE(0x05c6, 0x9274)}, /* iRex Technologies Gobi 2000 QDL device (VR307) */ 67 {USB_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */ 68 {USB_DEVICE(0x1199, 0x9000)}, /* Sierra Wireless Gobi 2000 QDL device (VT773) */ 69 {USB_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 70 {USB_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 71 {USB_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 72 {USB_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 73 {USB_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 74 {USB_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 75 {USB_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 76 {USB_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 77 {USB_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 78 {USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 79 {USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */ 80 {USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */ 81 {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */ 82 {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */ 83 { } /* Terminating entry */ 84 }; 85 MODULE_DEVICE_TABLE(usb, id_table); 86 87 static struct usb_driver qcdriver = { 88 .name = "qcserial", 89 .probe = usb_serial_probe, 90 .disconnect = usb_serial_disconnect, 91 .id_table = id_table, 92 .suspend = usb_serial_suspend, 93 .resume = usb_serial_resume, 94 .supports_autosuspend = true, 95 }; 96 97 static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) 98 { 99 struct usb_wwan_intf_private *data; 100 struct usb_host_interface *intf = serial->interface->cur_altsetting; 101 int retval = -ENODEV; 102 __u8 nintf; 103 __u8 ifnum; 104 105 dbg("%s", __func__); 106 107 nintf = serial->dev->actconfig->desc.bNumInterfaces; 108 dbg("Num Interfaces = %d", nintf); 109 ifnum = intf->desc.bInterfaceNumber; 110 dbg("This Interface = %d", ifnum); 111 112 data = serial->private = kzalloc(sizeof(struct usb_wwan_intf_private), 113 GFP_KERNEL); 114 if (!data) 115 return -ENOMEM; 116 117 spin_lock_init(&data->susp_lock); 118 119 switch (nintf) { 120 case 1: 121 /* QDL mode */ 122 /* Gobi 2000 has a single altsetting, older ones have two */ 123 if (serial->interface->num_altsetting == 2) 124 intf = &serial->interface->altsetting[1]; 125 else if (serial->interface->num_altsetting > 2) 126 break; 127 128 if (intf->desc.bNumEndpoints == 2 && 129 usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) && 130 usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) { 131 dbg("QDL port found"); 132 133 if (serial->interface->num_altsetting == 1) 134 return 0; 135 136 retval = usb_set_interface(serial->dev, ifnum, 1); 137 if (retval < 0) { 138 dev_err(&serial->dev->dev, 139 "Could not set interface, error %d\n", 140 retval); 141 retval = -ENODEV; 142 } 143 return retval; 144 } 145 break; 146 147 case 3: 148 case 4: 149 /* Composite mode */ 150 if (ifnum == 2) { 151 dbg("Modem port found"); 152 retval = usb_set_interface(serial->dev, ifnum, 0); 153 if (retval < 0) { 154 dev_err(&serial->dev->dev, 155 "Could not set interface, error %d\n", 156 retval); 157 retval = -ENODEV; 158 } 159 return retval; 160 } 161 break; 162 163 default: 164 dev_err(&serial->dev->dev, 165 "unknown number of interfaces: %d\n", nintf); 166 return -ENODEV; 167 } 168 169 return retval; 170 } 171 172 static struct usb_serial_driver qcdevice = { 173 .driver = { 174 .owner = THIS_MODULE, 175 .name = "qcserial", 176 }, 177 .description = "Qualcomm USB modem", 178 .id_table = id_table, 179 .usb_driver = &qcdriver, 180 .num_ports = 1, 181 .probe = qcprobe, 182 .open = usb_wwan_open, 183 .close = usb_wwan_close, 184 .write = usb_wwan_write, 185 .write_room = usb_wwan_write_room, 186 .chars_in_buffer = usb_wwan_chars_in_buffer, 187 .attach = usb_wwan_startup, 188 .disconnect = usb_wwan_disconnect, 189 .release = usb_wwan_release, 190 #ifdef CONFIG_PM 191 .suspend = usb_wwan_suspend, 192 .resume = usb_wwan_resume, 193 #endif 194 }; 195 196 static int __init qcinit(void) 197 { 198 int retval; 199 200 retval = usb_serial_register(&qcdevice); 201 if (retval) 202 return retval; 203 204 retval = usb_register(&qcdriver); 205 if (retval) { 206 usb_serial_deregister(&qcdevice); 207 return retval; 208 } 209 210 return 0; 211 } 212 213 static void __exit qcexit(void) 214 { 215 usb_deregister(&qcdriver); 216 usb_serial_deregister(&qcdevice); 217 } 218 219 module_init(qcinit); 220 module_exit(qcexit); 221 222 MODULE_AUTHOR(DRIVER_AUTHOR); 223 MODULE_DESCRIPTION(DRIVER_DESC); 224 MODULE_LICENSE("GPL v2"); 225 226 module_param(debug, bool, S_IRUGO | S_IWUSR); 227 MODULE_PARM_DESC(debug, "Debug enabled or not"); 228