hid: egalax: Correct for device resolution report error
[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     (1 << 0)
28 #define SIXAXIS_CONTROLLER_USB  (1 << 1)
29 #define SIXAXIS_CONTROLLER_BT   (1 << 2)
30
31 struct sony_sc {
32         unsigned long quirks;
33 };
34
35 /* Sony Vaio VGX has wrongly mouse pointer declared as constant */
36 static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
37                 unsigned int *rsize)
38 {
39         struct sony_sc *sc = hid_get_drvdata(hdev);
40
41         if ((sc->quirks & VAIO_RDESC_CONSTANT) &&
42                         *rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) {
43                 dev_info(&hdev->dev, "Fixing up Sony Vaio VGX report "
44                                 "descriptor\n");
45                 rdesc[55] = 0x06;
46         }
47         return rdesc;
48 }
49
50 static int sixaxis_usb_output_raw_report(struct hid_device *hid, __u8 *buf,
51                 size_t count, unsigned char report_type)
52 {
53         struct usb_interface *intf = to_usb_interface(hid->dev.parent);
54         struct usb_device *dev = interface_to_usbdev(intf);
55         struct usb_host_interface *interface = intf->cur_altsetting;
56         int report_id = buf[0];
57         int ret;
58
59         ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
60                 HID_REQ_SET_REPORT,
61                 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
62                 ((report_type + 1) << 8) | report_id,
63                 interface->desc.bInterfaceNumber, buf, count,
64                 USB_CTRL_SET_TIMEOUT);
65
66         return ret;
67 }
68
69 /*
70  * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
71  * to "operational".  Without this, the ps3 controller will not report any
72  * events.
73  */
74 static int sixaxis_set_operational_usb(struct hid_device *hdev)
75 {
76         struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
77         struct usb_device *dev = interface_to_usbdev(intf);
78         __u16 ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
79         int ret;
80         char *buf = kmalloc(18, GFP_KERNEL);
81
82         if (!buf)
83                 return -ENOMEM;
84
85         ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
86                                  HID_REQ_GET_REPORT,
87                                  USB_DIR_IN | USB_TYPE_CLASS |
88                                  USB_RECIP_INTERFACE,
89                                  (3 << 8) | 0xf2, ifnum, buf, 17,
90                                  USB_CTRL_GET_TIMEOUT);
91         if (ret < 0)
92                 dev_err(&hdev->dev, "can't set operational mode\n");
93
94         kfree(buf);
95
96         return ret;
97 }
98
99 static int sixaxis_set_operational_bt(struct hid_device *hdev)
100 {
101         unsigned char buf[] = { 0xf4,  0x42, 0x03, 0x00, 0x00 };
102         return hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
103 }
104
105 static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
106 {
107         int ret;
108         unsigned long quirks = id->driver_data;
109         struct sony_sc *sc;
110
111         sc = kzalloc(sizeof(*sc), GFP_KERNEL);
112         if (sc == NULL) {
113                 dev_err(&hdev->dev, "can't alloc sony descriptor\n");
114                 return -ENOMEM;
115         }
116
117         sc->quirks = quirks;
118         hid_set_drvdata(hdev, sc);
119
120         ret = hid_parse(hdev);
121         if (ret) {
122                 dev_err(&hdev->dev, "parse failed\n");
123                 goto err_free;
124         }
125
126         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
127                         HID_CONNECT_HIDDEV_FORCE);
128         if (ret) {
129                 dev_err(&hdev->dev, "hw start failed\n");
130                 goto err_free;
131         }
132
133         if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
134                 hdev->hid_output_raw_report = sixaxis_usb_output_raw_report;
135                 ret = sixaxis_set_operational_usb(hdev);
136         }
137         else if (sc->quirks & SIXAXIS_CONTROLLER_BT)
138                 ret = sixaxis_set_operational_bt(hdev);
139         else
140                 ret = 0;
141
142         if (ret < 0)
143                 goto err_stop;
144
145         return 0;
146 err_stop:
147         hid_hw_stop(hdev);
148 err_free:
149         kfree(sc);
150         return ret;
151 }
152
153 static void sony_remove(struct hid_device *hdev)
154 {
155         hid_hw_stop(hdev);
156         kfree(hid_get_drvdata(hdev));
157 }
158
159 static const struct hid_device_id sony_devices[] = {
160         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
161                 .driver_data = SIXAXIS_CONTROLLER_USB },
162         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
163                 .driver_data = SIXAXIS_CONTROLLER_BT },
164         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
165                 .driver_data = VAIO_RDESC_CONSTANT },
166         { }
167 };
168 MODULE_DEVICE_TABLE(hid, sony_devices);
169
170 static struct hid_driver sony_driver = {
171         .name = "sony",
172         .id_table = sony_devices,
173         .probe = sony_probe,
174         .remove = sony_remove,
175         .report_fixup = sony_report_fixup,
176 };
177
178 static int __init sony_init(void)
179 {
180         return hid_register_driver(&sony_driver);
181 }
182
183 static void __exit sony_exit(void)
184 {
185         hid_unregister_driver(&sony_driver);
186 }
187
188 module_init(sony_init);
189 module_exit(sony_exit);
190 MODULE_LICENSE("GPL");