projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| a78b4282 GKH |
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 | ||
| 19 | #define DRIVER_AUTHOR "Qualcomm Inc" | |
| 20 | #define DRIVER_DESC "Qualcomm USB Serial driver" | |
| 21 | ||
| 22 | static int debug; | |
| 23 | ||
| 24 | static struct usb_device_id id_table[] = { | |
| 25 | {USB_DEVICE(0x05c6, 0x9211)}, /* Acer Gobi QDL device */ | |
| 26 | {USB_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ | |
| 27 | { } /* Terminating entry */ | |
| 28 | }; | |
| 29 | MODULE_DEVICE_TABLE(usb, id_table); | |
| 30 | ||
| 31 | static struct usb_driver qcdriver = { | |
| 32 | .name = "qcserial", | |
| 33 | .probe = usb_serial_probe, | |
| 34 | .disconnect = usb_serial_disconnect, | |
| 35 | .id_table = id_table, | |
| 36 | .suspend = usb_serial_suspend, | |
| 37 | .resume = usb_serial_resume, | |
| 38 | .supports_autosuspend = true, | |
| 39 | }; | |
| 40 | ||
| 41 | static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) | |
| 42 | { | |
| 43 | int retval = -ENODEV; | |
| 44 | __u8 nintf; | |
| 45 | __u8 ifnum; | |
| 46 | ||
| 47 | dbg("%s", __func__); | |
| 48 | ||
| 49 | nintf = serial->dev->actconfig->desc.bNumInterfaces; | |
| 50 | dbg("Num Interfaces = %d", nintf); | |
| 51 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; | |
| 52 | dbg("This Interface = %d", ifnum); | |
| 53 | ||
| 54 | switch (nintf) { | |
| 55 | case 1: | |
| 56 | /* QDL mode */ | |
| 57 | if (serial->interface->num_altsetting == 2) { | |
| 58 | struct usb_host_interface *intf; | |
| 59 | ||
| 60 | intf = &serial->interface->altsetting[1]; | |
| 61 | if (intf->desc.bNumEndpoints == 2) { | |
| 62 | if (usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) && | |
| 63 | usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) { | |
| 64 | dbg("QDL port found"); | |
| 65 | retval = usb_set_interface(serial->dev, ifnum, 1); | |
| 66 | if (retval < 0) { | |
| 67 | dev_err(&serial->dev->dev, | |
| 68 | "Could not set interface, error %d\n", | |
| 69 | retval); | |
| 70 | retval = -ENODEV; | |
| 71 | } | |
| 72 | return retval; | |
| 73 | } | |
| 74 | } | |
| 75 | } | |
| 76 | break; | |
| 77 | ||
| 78 | case 4: | |
| 79 | /* Composite mode */ | |
| 80 | if (ifnum == 2) { | |
| 81 | dbg("Modem port found"); | |
| 82 | retval = usb_set_interface(serial->dev, ifnum, 0); | |
| 83 | if (retval < 0) { | |
| 84 | dev_err(&serial->dev->dev, | |
| 85 | "Could not set interface, error %d\n", | |
| 86 | retval); | |
| 87 | retval = -ENODEV; | |
| 88 | } | |
| 89 | return retval; | |
| 90 | } | |
| 91 | break; | |
| 92 | ||
| 93 | default: | |
| 94 | dev_err(&serial->dev->dev, | |
| 95 | "unknown number of interfaces: %d\n", nintf); | |
| 96 | return -ENODEV; | |
| 97 | } | |
| 98 | ||
| 99 | return retval; | |
| 100 | } | |
| 101 | ||
| 102 | static struct usb_serial_driver qcdevice = { | |
| 103 | .driver = { | |
| 104 | .owner = THIS_MODULE, | |
| 105 | .name = "qcserial", | |
| 106 | }, | |
| 107 | .description = "Qualcomm USB modem", | |
| 108 | .id_table = id_table, | |
| 109 | .usb_driver = &qcdriver, | |
| 110 | .num_ports = 1, | |
| 111 | .probe = qcprobe, | |
| 112 | }; | |
| 113 | ||
| 114 | static int __init qcinit(void) | |
| 115 | { | |
| 116 | int retval; | |
| 117 | ||
| 118 | retval = usb_serial_register(&qcdevice); | |
| 119 | if (retval) | |
| 120 | return retval; | |
| 121 | ||
| 122 | retval = usb_register(&qcdriver); | |
| 123 | if (retval) { | |
| 124 | usb_serial_deregister(&qcdevice); | |
| 125 | return retval; | |
| 126 | } | |
| 127 | ||
| 128 | return 0; | |
| 129 | } | |
| 130 | ||
| 131 | static void __exit qcexit(void) | |
| 132 | { | |
| 133 | usb_deregister(&qcdriver); | |
| 134 | usb_serial_deregister(&qcdevice); | |
| 135 | } | |
| 136 | ||
| 137 | module_init(qcinit); | |
| 138 | module_exit(qcexit); | |
| 139 | ||
| 140 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
| 141 | MODULE_DESCRIPTION(DRIVER_DESC); | |
| 142 | MODULE_LICENSE("GPL v2"); | |
| 143 | ||
| 144 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
| 145 | MODULE_PARM_DESC(debug, "Debug enabled or not"); |