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/usb.h>
  23
  24 #include "hid-ids.h"
  25
  26 #define VAIO_RDESC_CONSTANT 0x0001
  27
  28 struct sony_sc {
  29         unsigned long quirks;
  30 };
  31
  32 /* Sony Vaio VGX has wrongly mouse pointer declared as constant */
  33 static void sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  34                 unsigned int rsize)
  35 {
  36         struct sony_sc *sc = hid_get_drvdata(hdev);
  37
  38         if ((sc->quirks & VAIO_RDESC_CONSTANT) &&
  39                         rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) {
  40                 dev_info(&hdev->dev, "Fixing up Sony Vaio VGX report "
  41                                 "descriptor\n");
  42                 rdesc[55] = 0x06;
  43         }
  44 }
  45
  46 /*
  47  * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
  48  * to "operational".  Without this, the ps3 controller will not report any
  49  * events.
  50  */
  51 static int sony_set_operational_usb(struct hid_device *hdev)
  52 {
  53         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
  54         struct usb_device *dev = interface_to_usbdev(intf);
  55         __u16 ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
  56         int ret;
  57         char *buf = kmalloc(18, GFP_KERNEL);
  58
  59         if (!buf)
  60                 return -ENOMEM;
  61
  62         ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
  63                                  HID_REQ_GET_REPORT,
  64                                  USB_DIR_IN | USB_TYPE_CLASS |
  65                                  USB_RECIP_INTERFACE,
  66                                  (3 << 8) | 0xf2, ifnum, buf, 17,
  67                                  USB_CTRL_GET_TIMEOUT);
  68         if (ret < 0)
  69                 dev_err(&hdev->dev, "can't set operational mode\n");
  70
  71         kfree(buf);
  72
  73         return ret;
  74 }
  75
  76 static int sony_set_operational_bt(struct hid_device *hdev)
  77 {
  78         unsigned char buf[] = { 0x53, 0xf4,  0x42, 0x03, 0x00, 0x00 };
  79         return hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
  80 }
  81
  82 static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
  83 {
  84         int ret;
  85         unsigned long quirks = id->driver_data;
  86         struct sony_sc *sc;
  87
  88         sc = kzalloc(sizeof(*sc), GFP_KERNEL);
  89         if (sc == NULL) {
  90                 dev_err(&hdev->dev, "can't alloc sony descriptor\n");
  91                 return -ENOMEM;
  92         }
  93
  94         sc->quirks = quirks;
  95         hid_set_drvdata(hdev, sc);
  96
  97         ret = hid_parse(hdev);
  98         if (ret) {
  99                 dev_err(&hdev->dev, "parse failed\n");
 100                 goto err_free;
 101         }
 102
 103         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
 104                         HID_CONNECT_HIDDEV_FORCE);
 105         if (ret) {
 106                 dev_err(&hdev->dev, "hw start failed\n");
 107                 goto err_free;
 108         }
 109
 110         switch (hdev->bus) {
 111         case BUS_USB:
 112                 ret = sony_set_operational_usb(hdev);
 113                 break;
 114         case BUS_BLUETOOTH:
 115                 ret = sony_set_operational_bt(hdev);
 116                 break;
 117         default:
 118                 ret = 0;
 119         }
 120
 121         if (ret < 0)
 122                 goto err_stop;
 123
 124         return 0;
 125 err_stop:
 126         hid_hw_stop(hdev);
 127 err_free:
 128         kfree(sc);
 129         return ret;
 130 }
 131
 132 static void sony_remove(struct hid_device *hdev)
 133 {
 134         hid_hw_stop(hdev);
 135         kfree(hid_get_drvdata(hdev));
 136 }
 137
 138 static const struct hid_device_id sony_devices[] = {
 139         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
 140         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
 141         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
 142                 .driver_data = VAIO_RDESC_CONSTANT },
 143         { }
 144 };
 145 MODULE_DEVICE_TABLE(hid, sony_devices);
 146
 147 static struct hid_driver sony_driver = {
 148         .name = "sony",
 149         .id_table = sony_devices,
 150         .probe = sony_probe,
 151         .remove = sony_remove,
 152         .report_fixup = sony_report_fixup,
 153 };
 154
 155 static int __init sony_init(void)
 156 {
 157         return hid_register_driver(&sony_driver);
 158 }
 159
 160 static void __exit sony_exit(void)
 161 {
 162         hid_unregister_driver(&sony_driver);
 163 }
 164
 165 module_init(sony_init);
 166 module_exit(sony_exit);
 167 MODULE_LICENSE("GPL");