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 0x0001 28 29struct sony_sc { 30 unsigned long quirks; 31}; 32 33/* Sony Vaio VGX has wrongly mouse pointer declared as constant */ 34static void sony_report_fixup(struct hid_device *hdev, __u8 *rdesc, 35 unsigned int rsize) 36{ 37 struct sony_sc *sc = hid_get_drvdata(hdev); 38 39 if ((sc->quirks & VAIO_RDESC_CONSTANT) && 40 rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) { 41 dev_info(&hdev->dev, "Fixing up Sony Vaio VGX report " 42 "descriptor\n"); 43 rdesc[55] = 0x06; 44 } 45} 46 47/* 48 * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller 49 * to "operational". Without this, the ps3 controller will not report any 50 * events. 51 */ 52static int sony_set_operational_usb(struct hid_device *hdev) 53{ 54 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 55 struct usb_device *dev = interface_to_usbdev(intf); 56 __u16 ifnum = intf->cur_altsetting->desc.bInterfaceNumber; 57 int ret; 58 char *buf = kmalloc(18, GFP_KERNEL); 59 60 if (!buf) 61 return -ENOMEM; 62 63 ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 64 HID_REQ_GET_REPORT, 65 USB_DIR_IN | USB_TYPE_CLASS | 66 USB_RECIP_INTERFACE, 67 (3 << 8) | 0xf2, ifnum, buf, 17, 68 USB_CTRL_GET_TIMEOUT); 69 if (ret < 0) 70 dev_err(&hdev->dev, "can't set operational mode\n"); 71 72 kfree(buf); 73 74 return ret; 75} 76 77static int sony_set_operational_bt(struct hid_device *hdev) 78{ 79 unsigned char buf[] = { 0xf4, 0x42, 0x03, 0x00, 0x00 }; 80 return hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT); 81} 82 83static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id) 84{ 85 int ret; 86 unsigned long quirks = id->driver_data; 87 struct sony_sc *sc; 88 89 sc = kzalloc(sizeof(*sc), GFP_KERNEL); 90 if (sc == NULL) { 91 dev_err(&hdev->dev, "can't alloc sony descriptor\n"); 92 return -ENOMEM; 93 } 94 95 sc->quirks = quirks; 96 hid_set_drvdata(hdev, sc); 97 98 ret = hid_parse(hdev); 99 if (ret) { 100 dev_err(&hdev->dev, "parse failed\n"); 101 goto err_free; 102 } 103 104 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | 105 HID_CONNECT_HIDDEV_FORCE); 106 if (ret) { 107 dev_err(&hdev->dev, "hw start failed\n"); 108 goto err_free; 109 } 110 111 switch (hdev->bus) { 112 case BUS_USB: 113 ret = sony_set_operational_usb(hdev); 114 break; 115 case BUS_BLUETOOTH: 116 ret = sony_set_operational_bt(hdev); 117 break; 118 default: 119 ret = 0; 120 } 121 122 if (ret < 0) 123 goto err_stop; 124 125 return 0; 126err_stop: 127 hid_hw_stop(hdev); 128err_free: 129 kfree(sc); 130 return ret; 131} 132 133static void sony_remove(struct hid_device *hdev) 134{ 135 hid_hw_stop(hdev); 136 kfree(hid_get_drvdata(hdev)); 137} 138 139static const struct hid_device_id sony_devices[] = { 140 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 141 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 142 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE), 143 .driver_data = VAIO_RDESC_CONSTANT }, 144 { } 145}; 146MODULE_DEVICE_TABLE(hid, sony_devices); 147 148static struct hid_driver sony_driver = { 149 .name = "sony", 150 .id_table = sony_devices, 151 .probe = sony_probe, 152 .remove = sony_remove, 153 .report_fixup = sony_report_fixup, 154}; 155 156static int __init sony_init(void) 157{ 158 return hid_register_driver(&sony_driver); 159} 160 161static void __exit sony_exit(void) 162{ 163 hid_unregister_driver(&sony_driver); 164} 165 166module_init(sony_init); 167module_exit(sony_exit); 168MODULE_LICENSE("GPL"); 169