HID: sony: fix sony_set_operational_bt
[linux-2.6.git] / 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 0x0001
28
29 struct sony_sc {
30         unsigned long quirks;
31 };
32
33 /* Sony Vaio VGX has wrongly mouse pointer declared as constant */
34 static 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  */
52 static 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
77 static 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
83 static 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;
126 err_stop:
127         hid_hw_stop(hdev);
128 err_free:
129         kfree(sc);
130         return ret;
131 }
132
133 static void sony_remove(struct hid_device *hdev)
134 {
135         hid_hw_stop(hdev);
136         kfree(hid_get_drvdata(hdev));
137 }
138
139 static 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 };
146 MODULE_DEVICE_TABLE(hid, sony_devices);
147
148 static 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
156 static int __init sony_init(void)
157 {
158         return hid_register_driver(&sony_driver);
159 }
160
161 static void __exit sony_exit(void)
162 {
163         hid_unregister_driver(&sony_driver);
164 }
165
166 module_init(sony_init);
167 module_exit(sony_exit);
168 MODULE_LICENSE("GPL");