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 24static int debug; 25 26static 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, 0x9208)}, /* Generic Gobi 2000 QDL device */ 55 {USB_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */ 56 {USB_DEVICE(0x05c6, 0x9224)}, /* Sony Gobi 2000 QDL device (N0279, VU730) */ 57 {USB_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */ 58 {USB_DEVICE(0x05c6, 0x9244)}, /* Samsung Gobi 2000 QDL device (VL176) */ 59 {USB_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */ 60 {USB_DEVICE(0x03f0, 0x241d)}, /* HP Gobi 2000 QDL device (VP412) */ 61 {USB_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */ 62 {USB_DEVICE(0x05c6, 0x9214)}, /* Acer Gobi 2000 QDL device (VP413) */ 63 {USB_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */ 64 {USB_DEVICE(0x05c6, 0x9264)}, /* Asus Gobi 2000 QDL device (VR305) */ 65 {USB_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */ 66 {USB_DEVICE(0x05c6, 0x9234)}, /* Top Global Gobi 2000 QDL device (VR306) */ 67 {USB_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */ 68 {USB_DEVICE(0x05c6, 0x9274)}, /* iRex Technologies Gobi 2000 QDL device (VR307) */ 69 {USB_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */ 70 {USB_DEVICE(0x1199, 0x9000)}, /* Sierra Wireless Gobi 2000 QDL device (VT773) */ 71 {USB_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 72 {USB_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 73 {USB_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 74 {USB_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 75 {USB_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 76 {USB_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 77 {USB_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 78 {USB_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 79 {USB_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 80 {USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 81 {USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */ 82 {USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */ 83 {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */ 84 {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */ 85 { } /* Terminating entry */ 86}; 87MODULE_DEVICE_TABLE(usb, id_table); 88 89static struct usb_driver qcdriver = { 90 .name = "qcserial", 91 .probe = usb_serial_probe, 92 .disconnect = usb_serial_disconnect, 93 .id_table = id_table, 94 .suspend = usb_serial_suspend, 95 .resume = usb_serial_resume, 96 .supports_autosuspend = true, 97}; 98 99static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) 100{ 101 struct usb_wwan_intf_private *data; 102 struct usb_host_interface *intf = serial->interface->cur_altsetting; 103 int retval = -ENODEV; 104 __u8 nintf; 105 __u8 ifnum; 106 107 dbg("%s", __func__); 108 109 nintf = serial->dev->actconfig->desc.bNumInterfaces; 110 dbg("Num Interfaces = %d", nintf); 111 ifnum = intf->desc.bInterfaceNumber; 112 dbg("This Interface = %d", ifnum); 113 114 data = serial->private = kzalloc(sizeof(struct usb_wwan_intf_private), 115 GFP_KERNEL); 116 if (!data) 117 return -ENOMEM; 118 119 spin_lock_init(&data->susp_lock); 120 121 switch (nintf) { 122 case 1: 123 /* QDL mode */ 124 /* Gobi 2000 has a single altsetting, older ones have two */ 125 if (serial->interface->num_altsetting == 2) 126 intf = &serial->interface->altsetting[1]; 127 else if (serial->interface->num_altsetting > 2) 128 break; 129 130 if (intf->desc.bNumEndpoints == 2 && 131 usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) && 132 usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) { 133 dbg("QDL port found"); 134 135 if (serial->interface->num_altsetting == 1) 136 return 0; 137 138 retval = usb_set_interface(serial->dev, ifnum, 1); 139 if (retval < 0) { 140 dev_err(&serial->dev->dev, 141 "Could not set interface, error %d\n", 142 retval); 143 retval = -ENODEV; 144 kfree(data); 145 } 146 return retval; 147 } 148 break; 149 150 case 3: 151 case 4: 152 /* Composite mode */ 153 if (ifnum == 2) { 154 dbg("Modem port found"); 155 retval = usb_set_interface(serial->dev, ifnum, 0); 156 if (retval < 0) { 157 dev_err(&serial->dev->dev, 158 "Could not set interface, error %d\n", 159 retval); 160 retval = -ENODEV; 161 kfree(data); 162 } 163 return retval; 164 } 165 break; 166 167 default: 168 dev_err(&serial->dev->dev, 169 "unknown number of interfaces: %d\n", nintf); 170 kfree(data); 171 return -ENODEV; 172 } 173 174 return retval; 175} 176 177static struct usb_serial_driver qcdevice = { 178 .driver = { 179 .owner = THIS_MODULE, 180 .name = "qcserial", 181 }, 182 .description = "Qualcomm USB modem", 183 .id_table = id_table, 184 .usb_driver = &qcdriver, 185 .num_ports = 1, 186 .probe = qcprobe, 187 .open = usb_wwan_open, 188 .close = usb_wwan_close, 189 .write = usb_wwan_write, 190 .write_room = usb_wwan_write_room, 191 .chars_in_buffer = usb_wwan_chars_in_buffer, 192 .attach = usb_wwan_startup, 193 .disconnect = usb_wwan_disconnect, 194 .release = usb_wwan_release, 195#ifdef CONFIG_PM 196 .suspend = usb_wwan_suspend, 197 .resume = usb_wwan_resume, 198#endif 199}; 200 201static int __init qcinit(void) 202{ 203 int retval; 204 205 retval = usb_serial_register(&qcdevice); 206 if (retval) 207 return retval; 208 209 retval = usb_register(&qcdriver); 210 if (retval) { 211 usb_serial_deregister(&qcdevice); 212 return retval; 213 } 214 215 return 0; 216} 217 218static void __exit qcexit(void) 219{ 220 usb_deregister(&qcdriver); 221 usb_serial_deregister(&qcdevice); 222} 223 224module_init(qcinit); 225module_exit(qcexit); 226 227MODULE_AUTHOR(DRIVER_AUTHOR); 228MODULE_DESCRIPTION(DRIVER_DESC); 229MODULE_LICENSE("GPL v2"); 230 231module_param(debug, bool, S_IRUGO | S_IWUSR); 232MODULE_PARM_DESC(debug, "Debug enabled or not"); 233