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) 2008 Jiri Slaby
   8  *  Copyright (c) 2006-2008 Jiri Kosina
   9  */
  10
  11 /*
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License as published by the Free
  14  * Software Foundation; either version 2 of the License, or (at your option)
  15  * any later version.
  16  */
  17
  18 #include <linux/device.h>
  19 #include <linux/hid.h>
  20 #include <linux/module.h>
  21 #include <linux/slab.h>
  22 #include <linux/usb.h>
  23
  24 #include "hid-ids.h"
  25
  26 #define VAIO_RDESC_CONSTANT     (1 << 0)
  27 #define SIXAXIS_CONTROLLER_USB  (1 << 1)
  28 #define SIXAXIS_CONTROLLER_BT   (1 << 2)
  29
  30 static const u8 sixaxis_rdesc_fixup[] = {
  31         0x95, 0x13, 0x09, 0x01, 0x81, 0x02, 0x95, 0x0C,
  32         0x81, 0x01, 0x75, 0x10, 0x95, 0x04, 0x26, 0xFF,
  33         0x03, 0x46, 0xFF, 0x03, 0x09, 0x01, 0x81, 0x02
  34 };
  35
  36 struct sony_sc {
  37         unsigned long quirks;
  38 };
  39
  40 /* Sony Vaio VGX has wrongly mouse pointer declared as constant */
  41 static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  42                 unsigned int *rsize)
  43 {
  44         struct sony_sc *sc = hid_get_drvdata(hdev);
  45
  46         if ((sc->quirks & VAIO_RDESC_CONSTANT) &&
  47                         *rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) {
  48                 hid_info(hdev, "Fixing up Sony Vaio VGX report descriptor\n");
  49                 rdesc[55] = 0x06;
  50         }
  51
  52         /* The HID descriptor exposed over BT has a trailing zero byte */
  53         if ((((sc->quirks & SIXAXIS_CONTROLLER_USB) && *rsize == 148) ||
  54                         ((sc->quirks & SIXAXIS_CONTROLLER_BT) && *rsize == 149)) &&
  55                         rdesc[83] == 0x75) {
  56                 hid_info(hdev, "Fixing up Sony Sixaxis report descriptor\n");
  57                 memcpy((void *)&rdesc[83], (void *)&sixaxis_rdesc_fixup,
  58                         sizeof(sixaxis_rdesc_fixup));
  59         }
  60         return rdesc;
  61 }
  62
  63 static int sony_raw_event(struct hid_device *hdev, struct hid_report *report,
  64                 __u8 *rd, int size)
  65 {
  66         struct sony_sc *sc = hid_get_drvdata(hdev);
  67
  68         /* Sixaxis HID report has acclerometers/gyro with MSByte first, this
  69          * has to be BYTE_SWAPPED before passing up to joystick interface
  70          */
  71         if ((sc->quirks & (SIXAXIS_CONTROLLER_USB | SIXAXIS_CONTROLLER_BT)) &&
  72                         rd[0] == 0x01 && size == 49) {
  73                 swap(rd[41], rd[42]);
  74                 swap(rd[43], rd[44]);
  75                 swap(rd[45], rd[46]);
  76                 swap(rd[47], rd[48]);
  77         }
  78
  79         return 0;
  80 }
  81
  82 /*
  83  * The Sony Sixaxis does not handle HID Output Reports on the Interrupt EP
  84  * like it should according to usbhid/hid-core.c::usbhid_output_raw_report()
  85  * so we need to override that forcing HID Output Reports on the Control EP.
  86  *
  87  * There is also another issue about HID Output Reports via USB, the Sixaxis
  88  * does not want the report_id as part of the data packet, so we have to
  89  * discard buf[0] when sending the actual control message, even for numbered
  90  * reports, humpf!
  91  */
  92 static int sixaxis_usb_output_raw_report(struct hid_device *hid, __u8 *buf,
  93                 size_t count, unsigned char report_type)
  94 {
  95         struct usb_interface *intf = to_usb_interface(hid->dev.parent);
  96         struct usb_device *dev = interface_to_usbdev(intf);
  97         struct usb_host_interface *interface = intf->cur_altsetting;
  98         int report_id = buf[0];
  99         int ret;
 100
 101         if (report_type == HID_OUTPUT_REPORT) {
 102                 /* Don't send the Report ID */
 103                 buf++;
 104                 count--;
 105         }
 106
 107         ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 108                 HID_REQ_SET_REPORT,
 109                 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
 110                 ((report_type + 1) << 8) | report_id,
 111                 interface->desc.bInterfaceNumber, buf, count,
 112                 USB_CTRL_SET_TIMEOUT);
 113
 114         /* Count also the Report ID, in case of an Output report. */
 115         if (ret > 0 && report_type == HID_OUTPUT_REPORT)
 116                 ret++;
 117
 118         return ret;
 119 }
 120
 121 /*
 122  * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
 123  * to "operational".  Without this, the ps3 controller will not report any
 124  * events.
 125  */
 126 static int sixaxis_set_operational_usb(struct hid_device *hdev)
 127 {
 128         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 129         struct usb_device *dev = interface_to_usbdev(intf);
 130         __u16 ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
 131         int ret;
 132         char *buf = kmalloc(18, GFP_KERNEL);
 133
 134         if (!buf)
 135                 return -ENOMEM;
 136
 137         ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
 138                                  HID_REQ_GET_REPORT,
 139                                  USB_DIR_IN | USB_TYPE_CLASS |
 140                                  USB_RECIP_INTERFACE,
 141                                  (3 << 8) | 0xf2, ifnum, buf, 17,
 142                                  USB_CTRL_GET_TIMEOUT);
 143         if (ret < 0)
 144                 hid_err(hdev, "can't set operational mode\n");
 145
 146         kfree(buf);
 147
 148         return ret;
 149 }
 150
 151 static int sixaxis_set_operational_bt(struct hid_device *hdev)
 152 {
 153         unsigned char buf[] = { 0xf4,  0x42, 0x03, 0x00, 0x00 };
 154         return hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
 155 }
 156
 157 static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 158 {
 159         int ret;
 160         unsigned long quirks = id->driver_data;
 161         struct sony_sc *sc;
 162
 163         sc = kzalloc(sizeof(*sc), GFP_KERNEL);
 164         if (sc == NULL) {
 165                 hid_err(hdev, "can't alloc sony descriptor\n");
 166                 return -ENOMEM;
 167         }
 168
 169         sc->quirks = quirks;
 170         hid_set_drvdata(hdev, sc);
 171
 172         ret = hid_parse(hdev);
 173         if (ret) {
 174                 hid_err(hdev, "parse failed\n");
 175                 goto err_free;
 176         }
 177
 178         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
 179                         HID_CONNECT_HIDDEV_FORCE);
 180         if (ret) {
 181                 hid_err(hdev, "hw start failed\n");
 182                 goto err_free;
 183         }
 184
 185         if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
 186                 hdev->hid_output_raw_report = sixaxis_usb_output_raw_report;
 187                 ret = sixaxis_set_operational_usb(hdev);
 188         }
 189         else if (sc->quirks & SIXAXIS_CONTROLLER_BT)
 190                 ret = sixaxis_set_operational_bt(hdev);
 191         else
 192                 ret = 0;
 193
 194         if (ret < 0)
 195                 goto err_stop;
 196
 197         return 0;
 198 err_stop:
 199         hid_hw_stop(hdev);
 200 err_free:
 201         kfree(sc);
 202         return ret;
 203 }
 204
 205 static void sony_remove(struct hid_device *hdev)
 206 {
 207         hid_hw_stop(hdev);
 208         kfree(hid_get_drvdata(hdev));
 209 }
 210
 211 static const struct hid_device_id sony_devices[] = {
 212         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
 213                 .driver_data = SIXAXIS_CONTROLLER_USB },
 214         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER),
 215                 .driver_data = SIXAXIS_CONTROLLER_USB },
 216         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
 217                 .driver_data = SIXAXIS_CONTROLLER_BT },
 218         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
 219                 .driver_data = VAIO_RDESC_CONSTANT },
 220         { }
 221 };
 222 MODULE_DEVICE_TABLE(hid, sony_devices);
 223
 224 static struct hid_driver sony_driver = {
 225         .name = "sony",
 226         .id_table = sony_devices,
 227         .probe = sony_probe,
 228         .remove = sony_remove,
 229         .report_fixup = sony_report_fixup,
 230         .raw_event = sony_raw_event
 231 };
 232
 233 static int __init sony_init(void)
 234 {
 235         return hid_register_driver(&sony_driver);
 236 }
 237
 238 static void __exit sony_exit(void)
 239 {
 240         hid_unregister_driver(&sony_driver);
 241 }
 242
 243 module_init(sony_init);
 244 module_exit(sony_exit);
 245 MODULE_LICENSE("GPL");