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