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/*
* HID driver for some sony "special" devices
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
* Copyright (c) 2007 Paul Walmsley
* Copyright (c) 2008 Jiri Slaby
* Copyright (c) 2006-2008 Jiri Kosina
*/
/*
* 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; either version 2 of the License, or (at your option)
* any later version.
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/usb.h>
#include "hid-ids.h"
#define VAIO_RDESC_CONSTANT 0x0001
struct sony_sc {
unsigned long quirks;
};
/* Sony Vaio VGX has wrongly mouse pointer declared as constant */
static void sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int rsize)
{
struct sony_sc *sc = hid_get_drvdata(hdev);
if ((sc->quirks & VAIO_RDESC_CONSTANT) &&
rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) {
dev_info(&hdev->dev, "Fixing up Sony Vaio VGX report "
"descriptor\n");
rdesc[55] = 0x06;
}
}
/*
* Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
* to "operational". Without this, the ps3 controller will not report any
* events.
*/
static int sony_set_operational(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct usb_device *dev = interface_to_usbdev(intf);
__u16 ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
int ret;
char *buf = kmalloc(18, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
HID_REQ_GET_REPORT,
USB_DIR_IN | USB_TYPE_CLASS |
USB_RECIP_INTERFACE,
(3 << 8) | 0xf2, ifnum, buf, 17,
USB_CTRL_GET_TIMEOUT);
if (ret < 0)
dev_err(&hdev->dev, "can't set operational mode\n");
kfree(buf);
return ret;
}
static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
unsigned long quirks = id->driver_data;
struct sony_sc *sc;
sc = kzalloc(sizeof(*sc), GFP_KERNEL);
if (sc == NULL) {
dev_err(&hdev->dev, "can't alloc apple descriptor\n");
return -ENOMEM;
}
sc->quirks = quirks;
hid_set_drvdata(hdev, sc);
ret = hid_parse(hdev);
if (ret) {
dev_err(&hdev->dev, "parse failed\n");
goto err_free;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
HID_CONNECT_HIDDEV_FORCE);
if (ret) {
dev_err(&hdev->dev, "hw start failed\n");
goto err_free;
}
ret = sony_set_operational(hdev);
if (ret < 0)
goto err_stop;
return 0;
err_stop:
hid_hw_stop(hdev);
err_free:
kfree(sc);
return ret;
}
static void sony_remove(struct hid_device *hdev)
{
hid_hw_stop(hdev);
kfree(hid_get_drvdata(hdev));
}
static const struct hid_device_id sony_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
.driver_data = VAIO_RDESC_CONSTANT },
{ }
};
MODULE_DEVICE_TABLE(hid, sony_devices);
static struct hid_driver sony_driver = {
.name = "sony",
.id_table = sony_devices,
.probe = sony_probe,
.remove = sony_remove,
.report_fixup = sony_report_fixup,
};
static int sony_init(void)
{
return hid_register_driver(&sony_driver);
}
static void sony_exit(void)
{
hid_unregister_driver(&sony_driver);
}
module_init(sony_init);
module_exit(sony_exit);
MODULE_LICENSE("GPL");
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