-/*
- * USB BlackBerry charging module
- *
- * Copyright (C) 2007 Greg Kroah-Hartman <gregkh@suse.de>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2.
- *
- * Information on how to switch configs was taken by the bcharge.cc file
- * created by the barry.sf.net project.
- *
- * bcharge.cc has the following copyright:
- * Copyright (C) 2006, Net Direct Inc. (http://www.netdirect.ca/)
- * and is released under the GPLv2.
- *
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/usb.h>
-
-#define RIM_VENDOR 0x0fca
-#define BLACKBERRY 0x0001
-#define BLACKBERRY_PEARL_DUAL 0x0004
-#define BLACKBERRY_PEARL 0x0006
-
-static int debug;
-static int pearl_dual_mode = 1;
-
-#ifdef dbg
-#undef dbg
-#endif
-#define dbg(dev, format, arg...) \
- if (debug) \
- dev_printk(KERN_DEBUG , dev , format , ## arg)
-
-static const struct usb_device_id id_table[] = {
- { USB_DEVICE(RIM_VENDOR, BLACKBERRY) },
- { USB_DEVICE(RIM_VENDOR, BLACKBERRY_PEARL) },
- { USB_DEVICE(RIM_VENDOR, BLACKBERRY_PEARL_DUAL) },
- { }, /* Terminating entry */
-};
-MODULE_DEVICE_TABLE(usb, id_table);
-
-static int magic_charge(struct usb_device *udev)
-{
- char *dummy_buffer = kzalloc(2, GFP_KERNEL);
- int retval;
-
- if (!dummy_buffer)
- return -ENOMEM;
-
- /* send two magic commands and then set the configuration. The device
- * will then reset itself with the new power usage and should start
- * charging. */
-
- /* Note, with testing, it only seems that the first message is really
- * needed (at least for the 8700c), but to be safe, we emulate what
- * other operating systems seem to be sending to their device. We
- * really need to get some specs for this device to be sure about what
- * is going on here.
- */
- dbg(&udev->dev, "Sending first magic command\n");
- retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- 0xa5, 0xc0, 0, 1, dummy_buffer, 2, 100);
- if (retval != 2) {
- dev_err(&udev->dev, "First magic command failed: %d.\n",
- retval);
- goto exit;
- }
-
- dbg(&udev->dev, "Sending second magic command\n");
- retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- 0xa2, 0x40, 0, 1, dummy_buffer, 0, 100);
- if (retval != 0) {
- dev_err(&udev->dev, "Second magic command failed: %d.\n",
- retval);
- goto exit;
- }
-
- dbg(&udev->dev, "Calling set_configuration\n");
- retval = usb_driver_set_configuration(udev, 1);
- if (retval)
- dev_err(&udev->dev, "Set Configuration failed :%d.\n", retval);
-
-exit:
- kfree(dummy_buffer);
- return retval;
-}
-
-static int magic_dual_mode(struct usb_device *udev)
-{
- char *dummy_buffer = kzalloc(2, GFP_KERNEL);
- int retval;
-
- if (!dummy_buffer)
- return -ENOMEM;
-
- /* send magic command so that the Blackberry Pearl device exposes
- * two interfaces: both the USB mass-storage one and one which can
- * be used for database access. */
- dbg(&udev->dev, "Sending magic pearl command\n");
- retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- 0xa9, 0xc0, 1, 1, dummy_buffer, 2, 100);
- dbg(&udev->dev, "Magic pearl command returned %d\n", retval);
-
- dbg(&udev->dev, "Calling set_configuration\n");
- retval = usb_driver_set_configuration(udev, 1);
- if (retval)
- dev_err(&udev->dev, "Set Configuration failed :%d.\n", retval);
-
- kfree(dummy_buffer);
- return retval;
-}
-
-static int berry_probe(struct usb_interface *intf,
- const struct usb_device_id *id)
-{
- struct usb_device *udev = interface_to_usbdev(intf);
-
- if (udev->bus_mA < 500) {
- dbg(&udev->dev, "Not enough power to charge available\n");
- return -ENODEV;
- }
-
- dbg(&udev->dev, "Power is set to %dmA\n",
- udev->actconfig->desc.bMaxPower * 2);
-
- /* check the power usage so we don't try to enable something that is
- * already enabled */
- if ((udev->actconfig->desc.bMaxPower * 2) == 500) {
- dbg(&udev->dev, "device is already charging, power is "
- "set to %dmA\n", udev->actconfig->desc.bMaxPower * 2);
- return -ENODEV;
- }
-
- /* turn the power on */
- magic_charge(udev);
-
- if ((le16_to_cpu(udev->descriptor.idProduct) == BLACKBERRY_PEARL) &&
- (pearl_dual_mode))
- magic_dual_mode(udev);
-
- /* we don't really want to bind to the device, userspace programs can
- * handle the syncing just fine, so get outta here. */
- return -ENODEV;
-}
-
-static void berry_disconnect(struct usb_interface *intf)
-{
-}
-
-static struct usb_driver berry_driver = {
- .name = "berry_charge",
- .probe = berry_probe,
- .disconnect = berry_disconnect,
- .id_table = id_table,
-};
-
-static int __init berry_init(void)
-{
- return usb_register(&berry_driver);
-}
-
-static void __exit berry_exit(void)
-{
- usb_deregister(&berry_driver);
-}
-
-module_init(berry_init);
-module_exit(berry_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@suse.de>");
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
-module_param(pearl_dual_mode, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(pearl_dual_mode, "Change Blackberry Pearl to run in dual mode");
git.openpandora.org / pandora-kernel.git / commitdiff