--- /dev/null
+From foo@baz Tue Feb 17 22:39:56 PST 2009
+Date: Tue, 17 Feb 2009 22:39:56 -0800
+To: Greg KH <greg@kroah.com>
+From: Greg Kroah-Hartman <gregkh@suse.de>
+Subject: USB: serial: add qualcomm wireless modem driver
+
+Driver originally written by Qualcomm, but rewritten by me due to the
+totally different coding style. Cleaned up the probe logic to make a
+bit more sense, this is one wierd device. They could have prevented all
+of this by just writing sane firmware for the modem.
+
+Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
+
+---
+ drivers/usb/serial/Kconfig | 9 ++
+ drivers/usb/serial/Makefile | 1
+ drivers/usb/serial/qcserial.c | 152 ++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 162 insertions(+)
+
+--- a/drivers/usb/serial/Kconfig
++++ b/drivers/usb/serial/Kconfig
+@@ -472,6 +472,15 @@ config USB_SERIAL_OTI6858
+ To compile this driver as a module, choose M here: the
+ module will be called oti6858.
+
++config USB_SERIAL_QUALCOMM
++ tristate "USB Qualcomm Serial modem"
++ help
++ Say Y here if you have a Qualcomm USB modem device. These are
++ usually wireless cellular modems.
++
++ To compile this driver as a module, choose M here: the
++ module will be called qcserial.
++
+ config USB_SERIAL_SPCP8X5
+ tristate "USB SPCP8x5 USB To Serial Driver"
+ help
+--- a/drivers/usb/serial/Makefile
++++ b/drivers/usb/serial/Makefile
+@@ -44,6 +44,7 @@ obj-$(CONFIG_USB_SERIAL_OMNINET) += omn
+ obj-$(CONFIG_USB_SERIAL_OPTION) += option.o
+ obj-$(CONFIG_USB_SERIAL_OTI6858) += oti6858.o
+ obj-$(CONFIG_USB_SERIAL_PL2303) += pl2303.o
++obj-$(CONFIG_USB_SERIAL_QUALCOMM) += qcserial.o
+ obj-$(CONFIG_USB_SERIAL_SAFE) += safe_serial.o
+ obj-$(CONFIG_USB_SERIAL_SIERRAWIRELESS) += sierra.o
+ obj-$(CONFIG_USB_SERIAL_SPCP8X5) += spcp8x5.o
+--- /dev/null
++++ b/drivers/usb/serial/qcserial.c
+@@ -0,0 +1,152 @@
++/*
++ * 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/usb.h>
++#include <linux/usb/serial.h>
++
++#define DRIVER_VERSION "v0.4"
++#define DRIVER_AUTHOR "Qualcomm Inc"
++#define DRIVER_DESC "Qualcomm USB Serial driver"
++
++#define NUM_BULK_EPS 1
++#define MAX_BULK_EPS 6
++
++static int debug;
++
++static struct usb_device_id id_table[] = {
++ {USB_DEVICE(0x05c6, 0x9211)}, /* Acer Gobi QDL device */
++ {USB_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
++ { } /* Terminating entry */
++};
++MODULE_DEVICE_TABLE(usb, id_table);
++
++static struct usb_driver qcdriver = {
++ .name = "qcserial",
++ .probe = usb_serial_probe,
++ .disconnect = usb_serial_disconnect,
++ .id_table = id_table,
++ .suspend = usb_serial_suspend,
++ .resume = usb_serial_resume,
++ .supports_autosuspend = true,
++};
++
++static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
++{
++ int retval = -ENODEV;
++ __u8 nintf;
++ __u8 ifnum;
++
++ dbg("%s", __func__);
++
++ nintf = serial->dev->actconfig->desc.bNumInterfaces;
++ dbg("Num Interfaces = %d", nintf);
++ ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
++ dbg("This Interface = %d", ifnum);
++
++ switch (nintf) {
++ case 1:
++ /* QDL mode */
++ if (serial->interface->num_altsetting == 2) {
++ struct usb_host_interface *intf;
++
++ intf = &serial->interface->altsetting[1];
++ if (intf->desc.bNumEndpoints == 2) {
++ if (usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
++ usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
++ dbg("QDL port found");
++ retval = usb_set_interface(serial->dev, ifnum, 1);
++ if (retval < 0) {
++ dev_err(&serial->dev->dev,
++ "Could not set interface, error %d\n",
++ retval);
++ retval = -ENODEV;
++ }
++ return retval;
++ }
++ }
++ }
++ break;
++
++ case 4:
++ /* Composite mode */
++ if (ifnum == 2) {
++ dbg("Modem port found");
++ retval = usb_set_interface(serial->dev, ifnum, 0);
++ if (retval < 0) {
++ dev_err(&serial->dev->dev,
++ "Could not set interface, error %d\n",
++ retval);
++ retval = -ENODEV;
++ }
++ return retval;
++ }
++ break;
++
++ default:
++ dev_err(&serial->dev->dev,
++ "unknown number of interfaces: %d\n", nintf);
++ return -ENODEV;
++ }
++
++ return retval;
++}
++
++static struct usb_serial_driver qcdevice = {
++ .driver = {
++ .owner = THIS_MODULE,
++ .name = "qcserial",
++ },
++ .description = "Qualcomm USB modem",
++ .id_table = id_table,
++ .usb_driver = &qcdriver,
++ .num_ports = 1,
++ .probe = qcprobe,
++};
++
++static int __init qcinit(void)
++{
++ int retval;
++
++ retval = usb_serial_register(&qcdevice);
++ if (retval)
++ return retval;
++
++ retval = usb_register(&qcdriver);
++ if (retval) {
++ usb_serial_deregister(&qcdevice);
++ return retval;
++ }
++
++ printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION "\n");
++
++ return 0;
++}
++
++static void __exit qcexit(void)
++{
++ usb_deregister(&qcdriver);
++ usb_serial_deregister(&qcdevice);
++}
++
++module_init(qcinit);
++module_exit(qcexit);
++
++MODULE_AUTHOR(DRIVER_AUTHOR);
++MODULE_DESCRIPTION(DRIVER_DESC);
++MODULE_LICENSE("GPL v2");
++MODULE_VERSION(DRIVER_VERSION);
++
++module_param(debug, bool, S_IRUGO | S_IWUSR);
++MODULE_PARM_DESC(debug, "Debug enabled or not");
projects / people / teissler / ipfire-2.x.git / blobdiff