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) 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
  31static 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
  37struct sony_sc {
  38        unsigned long quirks;
  39};
  40
  41/* Sony Vaio VGX has wrongly mouse pointer declared as constant */
  42static __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
  64static 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 */
  93static 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 */
 127static 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
 152static 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
 158static 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;
 199err_stop:
 200        hid_hw_stop(hdev);
 201err_free:
 202        kfree(sc);
 203        return ret;
 204}
 205
 206static void sony_remove(struct hid_device *hdev)
 207{
 208        hid_hw_stop(hdev);
 209        kfree(hid_get_drvdata(hdev));
 210}
 211
 212static 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};
 223MODULE_DEVICE_TABLE(hid, sony_devices);
 224
 225static 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
 234static int __init sony_init(void)
 235{
 236        return hid_register_driver(&sony_driver);
 237}
 238
 239static void __exit sony_exit(void)
 240{
 241        hid_unregister_driver(&sony_driver);
 242}
 243
 244module_init(sony_init);
 245module_exit(sony_exit);
 246MODULE_LICENSE("GPL");
 247
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