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/usb.h> 23 24 #include "hid-ids.h" 25 26 #define VAIO_RDESC_CONSTANT 0x0001 27 28 struct sony_sc { 29 unsigned long quirks; 30 }; 31 32 /* Sony Vaio VGX has wrongly mouse pointer declared as constant */ 33 static void sony_report_fixup(struct hid_device *hdev, __u8 *rdesc, 34 unsigned int rsize) 35 { 36 struct sony_sc *sc = hid_get_drvdata(hdev); 37 38 if ((sc->quirks & VAIO_RDESC_CONSTANT) && 39 rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) { 40 dev_info(&hdev->dev, "Fixing up Sony Vaio VGX report " 41 "descriptor\n"); 42 rdesc[55] = 0x06; 43 } 44 } 45 46 /* 47 * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller 48 * to "operational". Without this, the ps3 controller will not report any 49 * events. 50 */ 51 static int sony_set_operational(struct hid_device *hdev) 52 { 53 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 54 struct usb_device *dev = interface_to_usbdev(intf); 55 __u16 ifnum = intf->cur_altsetting->desc.bInterfaceNumber; 56 int ret; 57 char *buf = kmalloc(18, GFP_KERNEL); 58 59 if (!buf) 60 return -ENOMEM; 61 62 ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 63 HID_REQ_GET_REPORT, 64 USB_DIR_IN | USB_TYPE_CLASS | 65 USB_RECIP_INTERFACE, 66 (3 << 8) | 0xf2, ifnum, buf, 17, 67 USB_CTRL_GET_TIMEOUT); 68 if (ret < 0) 69 dev_err(&hdev->dev, "can't set operational mode\n"); 70 71 kfree(buf); 72 73 return ret; 74 } 75 76 static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id) 77 { 78 int ret; 79 unsigned long quirks = id->driver_data; 80 struct sony_sc *sc; 81 82 sc = kzalloc(sizeof(*sc), GFP_KERNEL); 83 if (sc == NULL) { 84 dev_err(&hdev->dev, "can't alloc apple descriptor\n"); 85 return -ENOMEM; 86 } 87 88 sc->quirks = quirks; 89 hid_set_drvdata(hdev, sc); 90 91 ret = hid_parse(hdev); 92 if (ret) { 93 dev_err(&hdev->dev, "parse failed\n"); 94 goto err_free; 95 } 96 97 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | 98 HID_CONNECT_HIDDEV_FORCE); 99 if (ret) { 100 dev_err(&hdev->dev, "hw start failed\n"); 101 goto err_free; 102 } 103 104 ret = sony_set_operational(hdev); 105 if (ret < 0) 106 goto err_stop; 107 108 return 0; 109 err_stop: 110 hid_hw_stop(hdev); 111 err_free: 112 kfree(sc); 113 return ret; 114 } 115 116 static void sony_remove(struct hid_device *hdev) 117 { 118 hid_hw_stop(hdev); 119 kfree(hid_get_drvdata(hdev)); 120 } 121 122 static const struct hid_device_id sony_devices[] = { 123 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 124 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE), 125 .driver_data = VAIO_RDESC_CONSTANT }, 126 { } 127 }; 128 MODULE_DEVICE_TABLE(hid, sony_devices); 129 130 static struct hid_driver sony_driver = { 131 .name = "sony", 132 .id_table = sony_devices, 133 .probe = sony_probe, 134 .remove = sony_remove, 135 .report_fixup = sony_report_fixup, 136 }; 137 138 static int sony_init(void) 139 { 140 return hid_register_driver(&sony_driver); 141 } 142 143 static void sony_exit(void) 144 { 145 hid_unregister_driver(&sony_driver); 146 } 147 148 module_init(sony_init); 149 module_exit(sony_exit); 150 MODULE_LICENSE("GPL"); 151