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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/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"); |