drivers/hid/hid-sony.c

   1 /*
   2  *  HID driver for some sony "special" devices
   3  *
   4  *  Copyright (c) 1999 Andreas Gal
   5  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
   6  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
   7  *  Copyright (c) 2007 Paul Walmsley
   8  *  Copyright (c) 2008 Jiri Slaby
   9  *  Copyright (c) 2006-2008 Jiri Kosina
  10  */
  11
  12 /*
  13  * This program is free software; you can redistribute it and/or modify it
  14  * under the terms of the GNU General Public License as published by the Free
  15  * Software Foundation; either version 2 of the License, or (at your option)
  16  * any later version.
  17  */
  18
  19 #include <linux/device.h>
  20 #include <linux/hid.h>
  21 #include <linux/module.h>
  22 #include <linux/slab.h>
  23 #include <linux/usb.h>
  24
  25 #include "hid-ids.h"
  26
  27 #define VAIO_RDESC_CONSTANT     (1 << 0)
  28 #define SIXAXIS_CONTROLLER_USB  (1 << 1)
  29 #define SIXAXIS_CONTROLLER_BT   (1 << 2)
  30
  31 struct sony_sc {
  32         unsigned long quirks;
  33 };
  34
  35 /* Sony Vaio VGX has wrongly mouse pointer declared as constant */
  36 static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  37                 unsigned int *rsize)
  38 {
  39         struct sony_sc *sc = hid_get_drvdata(hdev);
  40
  41         if ((sc->quirks & VAIO_RDESC_CONSTANT) &&
  42                         *rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) {
  43                 dev_info(&hdev->dev, "Fixing up Sony Vaio VGX report "
  44                                 "descriptor\n");
  45                 rdesc[55] = 0x06;
  46         }
  47         return rdesc;
  48 }
  49
  50 static int sixaxis_usb_output_raw_report(struct hid_device *hid, __u8 *buf,
  51                 size_t count, unsigned char report_type)
  52 {
  53         struct usb_interface *intf = to_usb_interface(hid->dev.parent);
  54         struct usb_device *dev = interface_to_usbdev(intf);
  55         struct usb_host_interface *interface = intf->cur_altsetting;
  56         int report_id = buf[0];
  57         int ret;
  58
  59         ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
  60                 HID_REQ_SET_REPORT,
  61                 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
  62                 ((report_type + 1) << 8) | report_id,
  63                 interface->desc.bInterfaceNumber, buf, count,
  64                 USB_CTRL_SET_TIMEOUT);
  65
  66         return ret;
  67 }
  68
  69 /*
  70  * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
  71  * to "operational".  Without this, the ps3 controller will not report any
  72  * events.
  73  */
  74 static int sixaxis_set_operational_usb(struct hid_device *hdev)
  75 {
  76         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
  77         struct usb_device *dev = interface_to_usbdev(intf);
  78         __u16 ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
  79         int ret;
  80         char *buf = kmalloc(18, GFP_KERNEL);
  81
  82         if (!buf)
  83                 return -ENOMEM;
  84
  85         ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
  86                                  HID_REQ_GET_REPORT,
  87                                  USB_DIR_IN | USB_TYPE_CLASS |
  88                                  USB_RECIP_INTERFACE,
  89                                  (3 << 8) | 0xf2, ifnum, buf, 17,
  90                                  USB_CTRL_GET_TIMEOUT);
  91         if (ret < 0)
  92                 dev_err(&hdev->dev, "can't set operational mode\n");
  93
  94         kfree(buf);
  95
  96         return ret;
  97 }
  98
  99 static int sixaxis_set_operational_bt(struct hid_device *hdev)
 100 {
 101         unsigned char buf[] = { 0xf4,  0x42, 0x03, 0x00, 0x00 };
 102         return hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
 103 }
 104
 105 static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 106 {
 107         int ret;
 108         unsigned long quirks = id->driver_data;
 109         struct sony_sc *sc;
 110
 111         sc = kzalloc(sizeof(*sc), GFP_KERNEL);
 112         if (sc == NULL) {
 113                 dev_err(&hdev->dev, "can't alloc sony descriptor\n");
 114                 return -ENOMEM;
 115         }
 116
 117         sc->quirks = quirks;
 118         hid_set_drvdata(hdev, sc);
 119
 120         ret = hid_parse(hdev);
 121         if (ret) {
 122                 dev_err(&hdev->dev, "parse failed\n");
 123                 goto err_free;
 124         }
 125
 126         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
 127                         HID_CONNECT_HIDDEV_FORCE);
 128         if (ret) {
 129                 dev_err(&hdev->dev, "hw start failed\n");
 130                 goto err_free;
 131         }
 132
 133         if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
 134                 hdev->hid_output_raw_report = sixaxis_usb_output_raw_report;
 135                 ret = sixaxis_set_operational_usb(hdev);
 136         }
 137         else if (sc->quirks & SIXAXIS_CONTROLLER_BT)
 138                 ret = sixaxis_set_operational_bt(hdev);
 139         else
 140                 ret = 0;
 141
 142         if (ret < 0)
 143                 goto err_stop;
 144
 145         return 0;
 146 err_stop:
 147         hid_hw_stop(hdev);
 148 err_free:
 149         kfree(sc);
 150         return ret;
 151 }
 152
 153 static void sony_remove(struct hid_device *hdev)
 154 {
 155         hid_hw_stop(hdev);
 156         kfree(hid_get_drvdata(hdev));
 157 }
 158
 159 static const struct hid_device_id sony_devices[] = {
 160         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
 161                 .driver_data = SIXAXIS_CONTROLLER_USB },
 162         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
 163                 .driver_data = SIXAXIS_CONTROLLER_BT },
 164         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
 165                 .driver_data = VAIO_RDESC_CONSTANT },
 166         { }
 167 };
 168 MODULE_DEVICE_TABLE(hid, sony_devices);
 169
 170 static struct hid_driver sony_driver = {
 171         .name = "sony",
 172         .id_table = sony_devices,
 173         .probe = sony_probe,
 174         .remove = sony_remove,
 175         .report_fixup = sony_report_fixup,
 176 };
 177
 178 static int __init sony_init(void)
 179 {
 180         return hid_register_driver(&sony_driver);
 181 }
 182
 183 static void __exit sony_exit(void)
 184 {
 185         hid_unregister_driver(&sony_driver);
 186 }
 187
 188 module_init(sony_init);
 189 module_exit(sony_exit);
 190 MODULE_LICENSE("GPL");