linux/drivers/hid/hid-sony.c
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   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
  30static 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
  36struct sony_sc {
  37        unsigned long quirks;
  38};
  39
  40/* Sony Vaio VGX has wrongly mouse pointer declared as constant */
  41static __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
  63static 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 */
  92static 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 */
 126static 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
 151static 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
 157static 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;
 198err_stop:
 199        hid_hw_stop(hdev);
 200err_free:
 201        kfree(sc);
 202        return ret;
 203}
 204
 205static void sony_remove(struct hid_device *hdev)
 206{
 207        hid_hw_stop(hdev);
 208        kfree(hid_get_drvdata(hdev));
 209}
 210
 211static 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};
 222MODULE_DEVICE_TABLE(hid, sony_devices);
 223
 224static 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
 233static int __init sony_init(void)
 234{
 235        return hid_register_driver(&sony_driver);
 236}
 237
 238static void __exit sony_exit(void)
 239{
 240        hid_unregister_driver(&sony_driver);
 241}
 242
 243module_init(sony_init);
 244module_exit(sony_exit);
 245MODULE_LICENSE("GPL");
 246
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