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 /*
  65  * The Sony Sixaxis does not handle HID Output Reports on the Interrupt EP
  66  * like it should according to usbhid/hid-core.c::usbhid_output_raw_report()
  67  * so we need to override that forcing HID Output Reports on the Control EP.
  68  *
  69  * There is also another issue about HID Output Reports via USB, the Sixaxis
  70  * does not want the report_id as part of the data packet, so we have to
  71  * discard buf[0] when sending the actual control message, even for numbered
  72  * reports, humpf!
  73  */
  74 static int sixaxis_usb_output_raw_report(struct hid_device *hid, __u8 *buf,
  75                 size_t count, unsigned char report_type)
  76 {
  77         struct usb_interface *intf = to_usb_interface(hid->dev.parent);
  78         struct usb_device *dev = interface_to_usbdev(intf);
  79         struct usb_host_interface *interface = intf->cur_altsetting;
  80         int report_id = buf[0];
  81         int ret;
  82
  83         if (report_type == HID_OUTPUT_REPORT) {
  84                 /* Don't send the Report ID */
  85                 buf++;
  86                 count--;
  87         }
  88
  89         ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
  90                 HID_REQ_SET_REPORT,
  91                 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
  92                 ((report_type + 1) << 8) | report_id,
  93                 interface->desc.bInterfaceNumber, buf, count,
  94                 USB_CTRL_SET_TIMEOUT);
  95
  96         /* Count also the Report ID, in case of an Output report. */
  97         if (ret > 0 && report_type == HID_OUTPUT_REPORT)
  98                 ret++;
  99
 100         return ret;
 101 }
 102
 103 /*
 104  * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
 105  * to "operational".  Without this, the ps3 controller will not report any
 106  * events.
 107  */
 108 static int sixaxis_set_operational_usb(struct hid_device *hdev)
 109 {
 110         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 111         struct usb_device *dev = interface_to_usbdev(intf);
 112         __u16 ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
 113         int ret;
 114         char *buf = kmalloc(18, GFP_KERNEL);
 115
 116         if (!buf)
 117                 return -ENOMEM;
 118
 119         ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
 120                                  HID_REQ_GET_REPORT,
 121                                  USB_DIR_IN | USB_TYPE_CLASS |
 122                                  USB_RECIP_INTERFACE,
 123                                  (3 << 8) | 0xf2, ifnum, buf, 17,
 124                                  USB_CTRL_GET_TIMEOUT);
 125         if (ret < 0)
 126                 hid_err(hdev, "can't set operational mode\n");
 127
 128         kfree(buf);
 129
 130         return ret;
 131 }
 132
 133 static int sixaxis_set_operational_bt(struct hid_device *hdev)
 134 {
 135         unsigned char buf[] = { 0xf4,  0x42, 0x03, 0x00, 0x00 };
 136         return hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
 137 }
 138
 139 static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 140 {
 141         int ret;
 142         unsigned long quirks = id->driver_data;
 143         struct sony_sc *sc;
 144
 145         sc = kzalloc(sizeof(*sc), GFP_KERNEL);
 146         if (sc == NULL) {
 147                 hid_err(hdev, "can't alloc sony descriptor\n");
 148                 return -ENOMEM;
 149         }
 150
 151         sc->quirks = quirks;
 152         hid_set_drvdata(hdev, sc);
 153
 154         ret = hid_parse(hdev);
 155         if (ret) {
 156                 hid_err(hdev, "parse failed\n");
 157                 goto err_free;
 158         }
 159
 160         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
 161                         HID_CONNECT_HIDDEV_FORCE);
 162         if (ret) {
 163                 hid_err(hdev, "hw start failed\n");
 164                 goto err_free;
 165         }
 166
 167         if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
 168                 hdev->hid_output_raw_report = sixaxis_usb_output_raw_report;
 169                 ret = sixaxis_set_operational_usb(hdev);
 170         }
 171         else if (sc->quirks & SIXAXIS_CONTROLLER_BT)
 172                 ret = sixaxis_set_operational_bt(hdev);
 173         else
 174                 ret = 0;
 175
 176         if (ret < 0)
 177                 goto err_stop;
 178
 179         return 0;
 180 err_stop:
 181         hid_hw_stop(hdev);
 182 err_free:
 183         kfree(sc);
 184         return ret;
 185 }
 186
 187 static void sony_remove(struct hid_device *hdev)
 188 {
 189         hid_hw_stop(hdev);
 190         kfree(hid_get_drvdata(hdev));
 191 }
 192
 193 static const struct hid_device_id sony_devices[] = {
 194         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
 195                 .driver_data = SIXAXIS_CONTROLLER_USB },
 196         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER),
 197                 .driver_data = SIXAXIS_CONTROLLER_USB },
 198         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
 199                 .driver_data = SIXAXIS_CONTROLLER_BT },
 200         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
 201                 .driver_data = VAIO_RDESC_CONSTANT },
 202         { }
 203 };
 204 MODULE_DEVICE_TABLE(hid, sony_devices);
 205
 206 static struct hid_driver sony_driver = {
 207         .name = "sony",
 208         .id_table = sony_devices,
 209         .probe = sony_probe,
 210         .remove = sony_remove,
 211         .report_fixup = sony_report_fixup,
 212 };
 213
 214 static int __init sony_init(void)
 215 {
 216         return hid_register_driver(&sony_driver);
 217 }
 218
 219 static void __exit sony_exit(void)
 220 {
 221         hid_unregister_driver(&sony_driver);
 222 }
 223
 224 module_init(sony_init);
 225 module_exit(sony_exit);
 226 MODULE_LICENSE("GPL");