[deliverable/linux.git] / drivers / usb / serial / qcserial.c

/*
 * Qualcomm Serial USB driver
 *
 *	Copyright (c) 2008 QUALCOMM Incorporated.
 *	Copyright (c) 2009 Greg Kroah-Hartman <gregkh@suse.de>
 *	Copyright (c) 2009 Novell Inc.
 *
 *	This program is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU General Public License version
 *	2 as published by the Free Software Foundation.
 *
 */

#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/slab.h>
#include "usb-wwan.h"

#define DRIVER_AUTHOR "Qualcomm Inc"
#define DRIVER_DESC "Qualcomm USB Serial driver"

static bool debug;

#define DEVICE_G1K(v, p) \
	USB_DEVICE(v, p), .driver_info = 1

static const struct usb_device_id id_table[] = {
	/* Gobi 1000 devices */
	{DEVICE_G1K(0x05c6, 0x9211)},	/* Acer Gobi QDL device */
	{DEVICE_G1K(0x05c6, 0x9212)},	/* Acer Gobi Modem Device */
	{DEVICE_G1K(0x03f0, 0x1f1d)},	/* HP un2400 Gobi Modem Device */
	{DEVICE_G1K(0x03f0, 0x201d)},	/* HP un2400 Gobi QDL Device */
	{DEVICE_G1K(0x04da, 0x250d)},	/* Panasonic Gobi Modem device */
	{DEVICE_G1K(0x04da, 0x250c)},	/* Panasonic Gobi QDL device */
	{DEVICE_G1K(0x413c, 0x8172)},	/* Dell Gobi Modem device */
	{DEVICE_G1K(0x413c, 0x8171)},	/* Dell Gobi QDL device */
	{DEVICE_G1K(0x1410, 0xa001)},	/* Novatel Gobi Modem device */
	{DEVICE_G1K(0x1410, 0xa008)},	/* Novatel Gobi QDL device */
	{DEVICE_G1K(0x0b05, 0x1776)},	/* Asus Gobi Modem device */
	{DEVICE_G1K(0x0b05, 0x1774)},	/* Asus Gobi QDL device */
	{DEVICE_G1K(0x19d2, 0xfff3)},	/* ONDA Gobi Modem device */
	{DEVICE_G1K(0x19d2, 0xfff2)},	/* ONDA Gobi QDL device */
	{DEVICE_G1K(0x1557, 0x0a80)},	/* OQO Gobi QDL device */
	{DEVICE_G1K(0x05c6, 0x9001)},   /* Generic Gobi Modem device */
	{DEVICE_G1K(0x05c6, 0x9002)},	/* Generic Gobi Modem device */
	{DEVICE_G1K(0x05c6, 0x9202)},	/* Generic Gobi Modem device */
	{DEVICE_G1K(0x05c6, 0x9203)},	/* Generic Gobi Modem device */
	{DEVICE_G1K(0x05c6, 0x9222)},	/* Generic Gobi Modem device */
	{DEVICE_G1K(0x05c6, 0x9008)},	/* Generic Gobi QDL device */
	{DEVICE_G1K(0x05c6, 0x9009)},	/* Generic Gobi Modem device */
	{DEVICE_G1K(0x05c6, 0x9201)},	/* Generic Gobi QDL device */
	{DEVICE_G1K(0x05c6, 0x9221)},	/* Generic Gobi QDL device */
	{DEVICE_G1K(0x05c6, 0x9231)},	/* Generic Gobi QDL device */
	{DEVICE_G1K(0x1f45, 0x0001)},	/* Unknown Gobi QDL device */

	/* Gobi 2000 devices */
	{USB_DEVICE(0x1410, 0xa010)},	/* Novatel Gobi 2000 QDL device */
	{USB_DEVICE(0x1410, 0xa011)},	/* Novatel Gobi 2000 QDL device */
	{USB_DEVICE(0x1410, 0xa012)},	/* Novatel Gobi 2000 QDL device */
	{USB_DEVICE(0x1410, 0xa013)},	/* Novatel Gobi 2000 QDL device */
	{USB_DEVICE(0x1410, 0xa014)},	/* Novatel Gobi 2000 QDL device */
	{USB_DEVICE(0x413c, 0x8185)},	/* Dell Gobi 2000 QDL device (N0218, VU936) */
	{USB_DEVICE(0x413c, 0x8186)},	/* Dell Gobi 2000 Modem device (N0218, VU936) */
	{USB_DEVICE(0x05c6, 0x9208)},	/* Generic Gobi 2000 QDL device */
	{USB_DEVICE(0x05c6, 0x920b)},	/* Generic Gobi 2000 Modem device */
	{USB_DEVICE(0x05c6, 0x9224)},	/* Sony Gobi 2000 QDL device (N0279, VU730) */
	{USB_DEVICE(0x05c6, 0x9225)},	/* Sony Gobi 2000 Modem device (N0279, VU730) */
	{USB_DEVICE(0x05c6, 0x9244)},	/* Samsung Gobi 2000 QDL device (VL176) */
	{USB_DEVICE(0x05c6, 0x9245)},	/* Samsung Gobi 2000 Modem device (VL176) */
	{USB_DEVICE(0x03f0, 0x241d)},	/* HP Gobi 2000 QDL device (VP412) */
	{USB_DEVICE(0x03f0, 0x251d)},	/* HP Gobi 2000 Modem device (VP412) */
	{USB_DEVICE(0x05c6, 0x9214)},	/* Acer Gobi 2000 QDL device (VP413) */
	{USB_DEVICE(0x05c6, 0x9215)},	/* Acer Gobi 2000 Modem device (VP413) */
	{USB_DEVICE(0x05c6, 0x9264)},	/* Asus Gobi 2000 QDL device (VR305) */
	{USB_DEVICE(0x05c6, 0x9265)},	/* Asus Gobi 2000 Modem device (VR305) */
	{USB_DEVICE(0x05c6, 0x9234)},	/* Top Global Gobi 2000 QDL device (VR306) */
	{USB_DEVICE(0x05c6, 0x9235)},	/* Top Global Gobi 2000 Modem device (VR306) */
	{USB_DEVICE(0x05c6, 0x9274)},	/* iRex Technologies Gobi 2000 QDL device (VR307) */
	{USB_DEVICE(0x05c6, 0x9275)},	/* iRex Technologies Gobi 2000 Modem device (VR307) */
	{USB_DEVICE(0x1199, 0x9000)},	/* Sierra Wireless Gobi 2000 QDL device (VT773) */
	{USB_DEVICE(0x1199, 0x9001)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9002)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9003)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9004)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9005)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9006)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9007)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9008)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9009)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x900a)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9011)},   /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
	{USB_DEVICE(0x16d8, 0x8001)},	/* CMDTech Gobi 2000 QDL device (VU922) */
	{USB_DEVICE(0x16d8, 0x8002)},	/* CMDTech Gobi 2000 Modem device (VU922) */
	{USB_DEVICE(0x05c6, 0x9204)},	/* Gobi 2000 QDL device */
	{USB_DEVICE(0x05c6, 0x9205)},	/* Gobi 2000 Modem device */

	/* Gobi 3000 devices */
	{USB_DEVICE(0x03f0, 0x371d)},	/* HP un2430 Gobi 3000 QDL */
	{USB_DEVICE(0x05c6, 0x920c)},	/* Gobi 3000 QDL */
	{USB_DEVICE(0x05c6, 0x920d)},	/* Gobi 3000 Composite */
	{USB_DEVICE(0x1410, 0xa020)},   /* Novatel Gobi 3000 QDL */
	{USB_DEVICE(0x1410, 0xa021)},	/* Novatel Gobi 3000 Composite */
	{USB_DEVICE(0x413c, 0x8193)},	/* Dell Gobi 3000 QDL */
	{USB_DEVICE(0x413c, 0x8194)},	/* Dell Gobi 3000 Composite */
	{USB_DEVICE(0x1199, 0x68a4)},	/* Sierra Wireless QDL */
	{USB_DEVICE(0x1199, 0x68a5)},	/* Sierra Wireless Modem */
	{USB_DEVICE(0x1199, 0x68a8)},	/* Sierra Wireless QDL */
	{USB_DEVICE(0x1199, 0x68a9)},	/* Sierra Wireless Modem */
	{USB_DEVICE(0x1199, 0x9010)},	/* Sierra Wireless Gobi 3000 QDL */
	{USB_DEVICE(0x1199, 0x9012)},	/* Sierra Wireless Gobi 3000 QDL */
	{USB_DEVICE(0x1199, 0x9013)},	/* Sierra Wireless Gobi 3000 Modem device (MC8355) */
	{USB_DEVICE(0x1199, 0x9014)},	/* Sierra Wireless Gobi 3000 QDL */
	{USB_DEVICE(0x1199, 0x9015)},	/* Sierra Wireless Gobi 3000 Modem device */
	{USB_DEVICE(0x1199, 0x9018)},	/* Sierra Wireless Gobi 3000 QDL */
	{USB_DEVICE(0x1199, 0x9019)},	/* Sierra Wireless Gobi 3000 Modem device */
	{USB_DEVICE(0x1199, 0x901b)},	/* Sierra Wireless MC7770 */
	{USB_DEVICE(0x12D1, 0x14F0)},	/* Sony Gobi 3000 QDL */
	{USB_DEVICE(0x12D1, 0x14F1)},	/* Sony Gobi 3000 Composite */

	/* non Gobi Qualcomm serial devices */
	{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 0)},	/* Sierra Wireless MC7700 Device Management */
	{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 2)},	/* Sierra Wireless MC7700 NMEA */
	{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 3)},	/* Sierra Wireless MC7700 Modem */
	{USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 0)},	/* Sierra Wireless MC7750 Device Management */
	{USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 2)},	/* Sierra Wireless MC7750 NMEA */
	{USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 3)},	/* Sierra Wireless MC7750 Modem */
	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 0)},	/* Sierra Wireless MC7710 Device Management */
	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 2)},	/* Sierra Wireless MC7710 NMEA */
	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 3)},	/* Sierra Wireless MC7710 Modem */
	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 0)},	/* Sierra Wireless EM7700 Device Management */
	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 2)},	/* Sierra Wireless EM7700 NMEA */
	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 3)},	/* Sierra Wireless EM7700 Modem */

	{ }				/* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);

static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
{
	struct usb_wwan_intf_private *data;
	struct usb_host_interface *intf = serial->interface->cur_altsetting;
	struct device *dev = &serial->dev->dev;
	int retval = -ENODEV;
	__u8 nintf;
	__u8 ifnum;
	bool is_gobi1k = id->driver_info ? true : false;
	int altsetting = -1;

	dev_dbg(dev, "Is Gobi 1000 = %d\n", is_gobi1k);

	nintf = serial->dev->actconfig->desc.bNumInterfaces;
	dev_dbg(dev, "Num Interfaces = %d\n", nintf);
	ifnum = intf->desc.bInterfaceNumber;
	dev_dbg(dev, "This Interface = %d\n", ifnum);

	data = kzalloc(sizeof(struct usb_wwan_intf_private),
					 GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	spin_lock_init(&data->susp_lock);

	if (nintf == 1) {
		/* QDL mode */
		/* Gobi 2000 has a single altsetting, older ones have two */
		if (serial->interface->num_altsetting == 2)
			intf = &serial->interface->altsetting[1];
		else if (serial->interface->num_altsetting > 2)
			goto done;

		if (intf->desc.bNumEndpoints == 2 &&
		    usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
		    usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
			dev_dbg(dev, "QDL port found\n");

			if (serial->interface->num_altsetting == 1)
				retval = 0; /* Success */
			else
				altsetting = 1;
		}
		goto done;

	}

	/* allow any number of interfaces when doing direct interface match */
	if (id->match_flags & USB_DEVICE_ID_MATCH_INT_NUMBER) {
		dev_dbg(dev, "Generic Qualcomm serial interface found\n");
		altsetting = 0;
		goto done;
	}

	if (nintf < 3 || nintf > 4) {
		dev_err(dev, "unknown number of interfaces: %d\n", nintf);
		goto done;
	}

	/* default to enabling interface */
	altsetting = 0;

	/* Composite mode; don't bind to the QMI/net interface as that
	 * gets handled by other drivers.
	 */

	if (is_gobi1k) {
		/* Gobi 1K USB layout:
		 * 0: serial port (doesn't respond)
		 * 1: serial port (doesn't respond)
		 * 2: AT-capable modem port
		 * 3: QMI/net
		 */
		if (ifnum == 2)
			dev_dbg(dev, "Modem port found\n");
		else
			altsetting = -1;
	} else {
		/* Gobi 2K+ USB layout:
		 * 0: QMI/net
		 * 1: DM/DIAG (use libqcdm from ModemManager for communication)
		 * 2: AT-capable modem port
		 * 3: NMEA
		 */
		switch (ifnum) {
		case 0:
			/* Don't claim the QMI/net interface */
			altsetting = -1;
			break;
		case 1:
			dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n");
			break;
		case 2:
			dev_dbg(dev, "Modem port found\n");
			break;
		case 3:
			/*
			 * NMEA (serial line 9600 8N1)
			 * # echo "\$GPS_START" > /dev/ttyUSBx
			 * # echo "\$GPS_STOP"  > /dev/ttyUSBx
			 */
			dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n");
			break;
		}
	}

done:
	if (altsetting >= 0) {
		retval = usb_set_interface(serial->dev, ifnum, altsetting);
		if (retval < 0) {
			dev_err(dev,
				"Could not set interface, error %d\n",
				retval);
			retval = -ENODEV;
		}
	}

	/* Set serial->private if not returning error */
	if (retval == 0)
		usb_set_serial_data(serial, data);
	else
		kfree(data);

	return retval;
}

static void qc_release(struct usb_serial *serial)
{
	struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);

	/* Free the private data allocated in qcprobe */
	usb_set_serial_data(serial, NULL);
	kfree(priv);
}

static struct usb_serial_driver qcdevice = {
	.driver = {
		.owner     = THIS_MODULE,
		.name      = "qcserial",
	},
	.description         = "Qualcomm USB modem",
	.id_table            = id_table,
	.num_ports           = 1,
	.probe               = qcprobe,
	.open		     = usb_wwan_open,
	.close		     = usb_wwan_close,
	.write		     = usb_wwan_write,
	.write_room	     = usb_wwan_write_room,
	.chars_in_buffer     = usb_wwan_chars_in_buffer,
	.attach		     = usb_wwan_startup,
	.release	     = qc_release,
	.port_remove	     = usb_wwan_port_remove,
#ifdef CONFIG_PM
	.suspend	     = usb_wwan_suspend,
	.resume		     = usb_wwan_resume,
#endif
};

static struct usb_serial_driver * const serial_drivers[] = {
	&qcdevice, NULL
};

module_usb_serial_driver(serial_drivers, id_table);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL v2");

module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug enabled or not");
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>
6eb0de82	16	#include <linux/module.h>
a78b4282 GKH	17	#include <linux/usb.h>
a78b4282 GKH	18	#include <linux/usb/serial.h>
3d7e59ad MG	19	#include <linux/slab.h>
3d7e59ad MG	20	#include "usb-wwan.h"
a78b4282 GKH	21
	22	#define DRIVER_AUTHOR "Qualcomm Inc"
	23	#define DRIVER_DESC "Qualcomm USB Serial driver"
	24
90ab5ee9	25	static bool debug;
a78b4282	26
c192c8e7 DW	27	#define DEVICE_G1K(v, p) \
	28	USB_DEVICE(v, p), .driver_info = 1
	29
7d40d7e8	30	static const struct usb_device_id id_table[] = {
c192c8e7 DW	31	/* Gobi 1000 devices */
	32	{DEVICE_G1K(0x05c6, 0x9211)}, /* Acer Gobi QDL device */
	33	{DEVICE_G1K(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
	34	{DEVICE_G1K(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */
	35	{DEVICE_G1K(0x03f0, 0x201d)}, /* HP un2400 Gobi QDL Device */
	36	{DEVICE_G1K(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */
	37	{DEVICE_G1K(0x04da, 0x250c)}, /* Panasonic Gobi QDL device */
	38	{DEVICE_G1K(0x413c, 0x8172)}, /* Dell Gobi Modem device */
	39	{DEVICE_G1K(0x413c, 0x8171)}, /* Dell Gobi QDL device */
	40	{DEVICE_G1K(0x1410, 0xa001)}, /* Novatel Gobi Modem device */
	41	{DEVICE_G1K(0x1410, 0xa008)}, /* Novatel Gobi QDL device */
	42	{DEVICE_G1K(0x0b05, 0x1776)}, /* Asus Gobi Modem device */
	43	{DEVICE_G1K(0x0b05, 0x1774)}, /* Asus Gobi QDL device */
	44	{DEVICE_G1K(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */
	45	{DEVICE_G1K(0x19d2, 0xfff2)}, /* ONDA Gobi QDL device */
	46	{DEVICE_G1K(0x1557, 0x0a80)}, /* OQO Gobi QDL device */
	47	{DEVICE_G1K(0x05c6, 0x9001)}, /* Generic Gobi Modem device */
	48	{DEVICE_G1K(0x05c6, 0x9002)}, /* Generic Gobi Modem device */
	49	{DEVICE_G1K(0x05c6, 0x9202)}, /* Generic Gobi Modem device */
	50	{DEVICE_G1K(0x05c6, 0x9203)}, /* Generic Gobi Modem device */
	51	{DEVICE_G1K(0x05c6, 0x9222)}, /* Generic Gobi Modem device */
	52	{DEVICE_G1K(0x05c6, 0x9008)}, /* Generic Gobi QDL device */
	53	{DEVICE_G1K(0x05c6, 0x9009)}, /* Generic Gobi Modem device */
	54	{DEVICE_G1K(0x05c6, 0x9201)}, /* Generic Gobi QDL device */
	55	{DEVICE_G1K(0x05c6, 0x9221)}, /* Generic Gobi QDL device */
	56	{DEVICE_G1K(0x05c6, 0x9231)}, /* Generic Gobi QDL device */
	57	{DEVICE_G1K(0x1f45, 0x0001)}, /* Unknown Gobi QDL device */
	58
	59	/* Gobi 2000 devices */
	60	{USB_DEVICE(0x1410, 0xa010)}, /* Novatel Gobi 2000 QDL device */
	61	{USB_DEVICE(0x1410, 0xa011)}, /* Novatel Gobi 2000 QDL device */
	62	{USB_DEVICE(0x1410, 0xa012)}, /* Novatel Gobi 2000 QDL device */
	63	{USB_DEVICE(0x1410, 0xa013)}, /* Novatel Gobi 2000 QDL device */
	64	{USB_DEVICE(0x1410, 0xa014)}, /* Novatel Gobi 2000 QDL device */
0725e95e BR	65	{USB_DEVICE(0x413c, 0x8185)}, /* Dell Gobi 2000 QDL device (N0218, VU936) */
0725e95e BR	66	{USB_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */
bec25b89 AB	67	{USB_DEVICE(0x05c6, 0x9208)}, /* Generic Gobi 2000 QDL device */
bec25b89 AB	68	{USB_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */
0725e95e BR	69	{USB_DEVICE(0x05c6, 0x9224)}, /* Sony Gobi 2000 QDL device (N0279, VU730) */
	70	{USB_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */
	71	{USB_DEVICE(0x05c6, 0x9244)}, /* Samsung Gobi 2000 QDL device (VL176) */
	72	{USB_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */
	73	{USB_DEVICE(0x03f0, 0x241d)}, /* HP Gobi 2000 QDL device (VP412) */
	74	{USB_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */
	75	{USB_DEVICE(0x05c6, 0x9214)}, /* Acer Gobi 2000 QDL device (VP413) */
	76	{USB_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */
	77	{USB_DEVICE(0x05c6, 0x9264)}, /* Asus Gobi 2000 QDL device (VR305) */
	78	{USB_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */
	79	{USB_DEVICE(0x05c6, 0x9234)}, /* Top Global Gobi 2000 QDL device (VR306) */
	80	{USB_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */
	81	{USB_DEVICE(0x05c6, 0x9274)}, /* iRex Technologies Gobi 2000 QDL device (VR307) */
	82	{USB_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */
	83	{USB_DEVICE(0x1199, 0x9000)}, /* Sierra Wireless Gobi 2000 QDL device (VT773) */
	84	{USB_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
	85	{USB_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
	86	{USB_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
	87	{USB_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
	88	{USB_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
	89	{USB_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
	90	{USB_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
	91	{USB_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
	92	{USB_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
	93	{USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
2f1def26	94	{USB_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
0725e95e BR	95	{USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */
0725e95e BR	96	{USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */
e07896e6 AH	97	{USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */
e07896e6 AH	98	{USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */
2db4d870	99
c192c8e7 DW	100	/* Gobi 3000 devices */
c192c8e7 DW	101	{USB_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Gobi 3000 QDL */
2db4d870 TT	102	{USB_DEVICE(0x05c6, 0x920c)}, /* Gobi 3000 QDL */
	103	{USB_DEVICE(0x05c6, 0x920d)}, /* Gobi 3000 Composite */
	104	{USB_DEVICE(0x1410, 0xa020)}, /* Novatel Gobi 3000 QDL */
	105	{USB_DEVICE(0x1410, 0xa021)}, /* Novatel Gobi 3000 Composite */
	106	{USB_DEVICE(0x413c, 0x8193)}, /* Dell Gobi 3000 QDL */
	107	{USB_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */
1937131a BM	108	{USB_DEVICE(0x1199, 0x68a4)}, /* Sierra Wireless QDL */
	109	{USB_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */
	110	{USB_DEVICE(0x1199, 0x68a8)}, /* Sierra Wireless QDL */
	111	{USB_DEVICE(0x1199, 0x68a9)}, /* Sierra Wireless Modem */
c41444cc BM	112	{USB_DEVICE(0x1199, 0x9010)}, /* Sierra Wireless Gobi 3000 QDL */
c41444cc BM	113	{USB_DEVICE(0x1199, 0x9012)}, /* Sierra Wireless Gobi 3000 QDL */
68c79e57	114	{USB_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */
c41444cc BM	115	{USB_DEVICE(0x1199, 0x9014)}, /* Sierra Wireless Gobi 3000 QDL */
	116	{USB_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */
	117	{USB_DEVICE(0x1199, 0x9018)}, /* Sierra Wireless Gobi 3000 QDL */
	118	{USB_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */
1937131a	119	{USB_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */
2db4d870 TT	120	{USB_DEVICE(0x12D1, 0x14F0)}, /* Sony Gobi 3000 QDL */
2db4d870 TT	121	{USB_DEVICE(0x12D1, 0x14F1)}, /* Sony Gobi 3000 Composite */
1937131a BM	122
	123	/* non Gobi Qualcomm serial devices */
	124	{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 0)}, /* Sierra Wireless MC7700 Device Management */
	125	{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 2)}, /* Sierra Wireless MC7700 NMEA */
	126	{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 3)}, /* Sierra Wireless MC7700 Modem */
	127	{USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 0)}, /* Sierra Wireless MC7750 Device Management */
	128	{USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 2)}, /* Sierra Wireless MC7750 NMEA */
	129	{USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 3)}, /* Sierra Wireless MC7750 Modem */
	130	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 0)}, /* Sierra Wireless MC7710 Device Management */
	131	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 2)}, /* Sierra Wireless MC7710 NMEA */
	132	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 3)}, /* Sierra Wireless MC7710 Modem */
	133	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 0)}, /* Sierra Wireless EM7700 Device Management */
	134	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 2)}, /* Sierra Wireless EM7700 NMEA */
	135	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 3)}, /* Sierra Wireless EM7700 Modem */
	136
a78b4282 GKH	137	{ } /* Terminating entry */
	138	};
	139	MODULE_DEVICE_TABLE(usb, id_table);
	140
a78b4282 GKH	141	static int qcprobe(struct usb_serial serial, const struct usb_device_id id)
a78b4282 GKH	142	{
3d7e59ad	143	struct usb_wwan_intf_private *data;
e07896e6	144	struct usb_host_interface *intf = serial->interface->cur_altsetting;
9760b283	145	struct device *dev = &serial->dev->dev;
a78b4282 GKH	146	int retval = -ENODEV;
	147	__u8 nintf;
	148	__u8 ifnum;
c192c8e7	149	bool is_gobi1k = id->driver_info ? true : false;
2cf69930	150	int altsetting = -1;
a78b4282	151
9760b283	152	dev_dbg(dev, "Is Gobi 1000 = %d\n", is_gobi1k);
a78b4282 GKH	153
a78b4282 GKH	154	nintf = serial->dev->actconfig->desc.bNumInterfaces;
9760b283	155	dev_dbg(dev, "Num Interfaces = %d\n", nintf);
e07896e6	156	ifnum = intf->desc.bInterfaceNumber;
9760b283	157	dev_dbg(dev, "This Interface = %d\n", ifnum);
a78b4282	158
99ab3f9e	159	data = kzalloc(sizeof(struct usb_wwan_intf_private),
3d7e59ad MG	160	GFP_KERNEL);
	161	if (!data)
	162	return -ENOMEM;
	163
	164	spin_lock_init(&data->susp_lock);
	165
0dfbf65e	166	if (nintf == 1) {
a78b4282	167	/* QDL mode */
e07896e6 AH	168	/* Gobi 2000 has a single altsetting, older ones have two */
e07896e6 AH	169	if (serial->interface->num_altsetting == 2)
a78b4282	170	intf = &serial->interface->altsetting[1];
e07896e6	171	else if (serial->interface->num_altsetting > 2)
0dfbf65e	172	goto done;
e07896e6 AH	173
	174	if (intf->desc.bNumEndpoints == 2 &&
	175	usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
	176	usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
9760b283	177	dev_dbg(dev, "QDL port found\n");
e07896e6	178
d25d5f28	179	if (serial->interface->num_altsetting == 1)
99ab3f9e	180	retval = 0; /* Success */
d25d5f28 BM	181	else
d25d5f28 BM	182	altsetting = 1;
a78b4282	183	}
0dfbf65e	184	goto done;
a78b4282	185
0dfbf65e BM	186	}
0dfbf65e BM	187
e7ad21e0 BM	188	/* allow any number of interfaces when doing direct interface match */
	189	if (id->match_flags & USB_DEVICE_ID_MATCH_INT_NUMBER) {
	190	dev_dbg(dev, "Generic Qualcomm serial interface found\n");
	191	altsetting = 0;
	192	goto done;
	193	}
	194
0dfbf65e BM	195	if (nintf < 3 \|\| nintf > 4) {
	196	dev_err(dev, "unknown number of interfaces: %d\n", nintf);
	197	goto done;
	198	}
	199
	200	/* default to enabling interface */
	201	altsetting = 0;
c192c8e7	202
731879f8 DW	203	/* Composite mode; don't bind to the QMI/net interface as that
	204	* gets handled by other drivers.
	205	*/
	206
	207	if (is_gobi1k) {
c192c8e7 DW	208	/* Gobi 1K USB layout:
	209	* 0: serial port (doesn't respond)
	210	* 1: serial port (doesn't respond)
	211	* 2: AT-capable modem port
	212	* 3: QMI/net
731879f8 DW	213	*/
	214	if (ifnum == 2)
	215	dev_dbg(dev, "Modem port found\n");
	216	else
	217	altsetting = -1;
	218	} else {
	219	/* Gobi 2K+ USB layout:
c192c8e7 DW	220	* 0: QMI/net
	221	* 1: DM/DIAG (use libqcdm from ModemManager for communication)
	222	* 2: AT-capable modem port
	223	* 3: NMEA
	224	*/
731879f8 DW	225	switch (ifnum) {
	226	case 0:
	227	/* Don't claim the QMI/net interface */
0dfbf65e	228	altsetting = -1;
731879f8 DW	229	break;
731879f8 DW	230	case 1:
9760b283	231	dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n");
731879f8 DW	232	break;
	233	case 2:
	234	dev_dbg(dev, "Modem port found\n");
	235	break;
	236	case 3:
1992de83 ME	237	/*
	238	* NMEA (serial line 9600 8N1)
	239	* # echo "\$GPS_START" > /dev/ttyUSBx
	240	* # echo "\$GPS_STOP" > /dev/ttyUSBx
	241	*/
9760b283	242	dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n");
731879f8 DW	243	break;
731879f8 DW	244	}
a78b4282 GKH	245	}
a78b4282 GKH	246
0dfbf65e	247	done:
2cf69930 BM	248	if (altsetting >= 0) {
	249	retval = usb_set_interface(serial->dev, ifnum, altsetting);
	250	if (retval < 0) {
	251	dev_err(dev,
	252	"Could not set interface, error %d\n",
	253	retval);
	254	retval = -ENODEV;
2cf69930 BM	255	}
	256	}
	257
d25d5f28 BM	258	/* Set serial->private if not returning error */
d25d5f28 BM	259	if (retval == 0)
99ab3f9e	260	usb_set_serial_data(serial, data);
d25d5f28 BM	261	else
	262	kfree(data);
	263
a78b4282 GKH	264	return retval;
	265	}
	266
10c9ab15 SH	267	static void qc_release(struct usb_serial *serial)
	268	{
	269	struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
	270
a1028f0a	271	/* Free the private data allocated in qcprobe */
10c9ab15 SH	272	usb_set_serial_data(serial, NULL);
	273	kfree(priv);
	274	}
	275
a78b4282 GKH	276	static struct usb_serial_driver qcdevice = {
	277	.driver = {
	278	.owner = THIS_MODULE,
	279	.name = "qcserial",
	280	},
	281	.description = "Qualcomm USB modem",
	282	.id_table = id_table,
a78b4282 GKH	283	.num_ports = 1,
a78b4282 GKH	284	.probe = qcprobe,
3d7e59ad MG	285	.open = usb_wwan_open,
	286	.close = usb_wwan_close,
	287	.write = usb_wwan_write,
	288	.write_room = usb_wwan_write_room,
	289	.chars_in_buffer = usb_wwan_chars_in_buffer,
	290	.attach = usb_wwan_startup,
10c9ab15	291	.release = qc_release,
a1028f0a	292	.port_remove = usb_wwan_port_remove,
3d7e59ad MG	293	#ifdef CONFIG_PM
	294	.suspend = usb_wwan_suspend,
	295	.resume = usb_wwan_resume,
	296	#endif
a78b4282 GKH	297	};
a78b4282 GKH	298
d860322f AS	299	static struct usb_serial_driver * const serial_drivers[] = {
	300	&qcdevice, NULL
	301	};
	302
68e24113	303	module_usb_serial_driver(serial_drivers, id_table);
a78b4282 GKH	304
	305	MODULE_AUTHOR(DRIVER_AUTHOR);
	306	MODULE_DESCRIPTION(DRIVER_DESC);
	307	MODULE_LICENSE("GPL v2");
	308
	309	module_param(debug, bool, S_IRUGO \| S_IWUSR);
	310	MODULE_PARM_DESC(debug, "Debug enabled or not");