Merge branch 'fluff' into release
[linux-2.6/sactl.git] / drivers / hid / hid-pl.c
blob46941f979b9d058202f9ce71f8b70e341457c62a
1 /*
2 * Force feedback support for PantherLord/GreenAsia based devices
4 * The devices are distributed under various names and the same USB device ID
5 * can be used in both adapters and actual game controllers.
7 * 0810:0001 "Twin USB Joystick"
8 * - tested with PantherLord USB/PS2 2in1 Adapter
9 * - contains two reports, one for each port (HID_QUIRK_MULTI_INPUT)
11 * 0e8f:0003 "GreenAsia Inc. USB Joystick "
12 * - tested with K??ng Gaming gamepad
14 * Copyright (c) 2007 Anssi Hannula <anssi.hannula@gmail.com>
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License as published by
20 * the Free Software Foundation; either version 2 of the License, or
21 * (at your option) any later version.
23 * This program is distributed in the hope that it will be useful,
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 * GNU General Public License for more details.
28 * You should have received a copy of the GNU General Public License
29 * along with this program; if not, write to the Free Software
30 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
34 /* #define DEBUG */
36 #define debug(format, arg...) pr_debug("hid-plff: " format "\n" , ## arg)
38 #include <linux/input.h>
39 #include <linux/usb.h>
40 #include <linux/hid.h>
42 #include "hid-ids.h"
44 #ifdef CONFIG_PANTHERLORD_FF
45 #include "usbhid/usbhid.h"
47 struct plff_device {
48 struct hid_report *report;
51 static int hid_plff_play(struct input_dev *dev, void *data,
52 struct ff_effect *effect)
54 struct hid_device *hid = input_get_drvdata(dev);
55 struct plff_device *plff = data;
56 int left, right;
58 left = effect->u.rumble.strong_magnitude;
59 right = effect->u.rumble.weak_magnitude;
60 debug("called with 0x%04x 0x%04x", left, right);
62 left = left * 0x7f / 0xffff;
63 right = right * 0x7f / 0xffff;
65 plff->report->field[0]->value[2] = left;
66 plff->report->field[0]->value[3] = right;
67 debug("running with 0x%02x 0x%02x", left, right);
68 usbhid_submit_report(hid, plff->report, USB_DIR_OUT);
70 return 0;
73 static int plff_init(struct hid_device *hid)
75 struct plff_device *plff;
76 struct hid_report *report;
77 struct hid_input *hidinput;
78 struct list_head *report_list =
79 &hid->report_enum[HID_OUTPUT_REPORT].report_list;
80 struct list_head *report_ptr = report_list;
81 struct input_dev *dev;
82 int error;
84 /* The device contains one output report per physical device, all
85 containing 1 field, which contains 4 ff00.0002 usages and 4 16bit
86 absolute values.
88 The input reports also contain a field which contains
89 8 ff00.0001 usages and 8 boolean values. Their meaning is
90 currently unknown. */
92 if (list_empty(report_list)) {
93 dev_err(&hid->dev, "no output reports found\n");
94 return -ENODEV;
97 list_for_each_entry(hidinput, &hid->inputs, list) {
99 report_ptr = report_ptr->next;
101 if (report_ptr == report_list) {
102 dev_err(&hid->dev, "required output report is "
103 "missing\n");
104 return -ENODEV;
107 report = list_entry(report_ptr, struct hid_report, list);
108 if (report->maxfield < 1) {
109 dev_err(&hid->dev, "no fields in the report\n");
110 return -ENODEV;
113 if (report->field[0]->report_count < 4) {
114 dev_err(&hid->dev, "not enough values in the field\n");
115 return -ENODEV;
118 plff = kzalloc(sizeof(struct plff_device), GFP_KERNEL);
119 if (!plff)
120 return -ENOMEM;
122 dev = hidinput->input;
124 set_bit(FF_RUMBLE, dev->ffbit);
126 error = input_ff_create_memless(dev, plff, hid_plff_play);
127 if (error) {
128 kfree(plff);
129 return error;
132 plff->report = report;
133 plff->report->field[0]->value[0] = 0x00;
134 plff->report->field[0]->value[1] = 0x00;
135 plff->report->field[0]->value[2] = 0x00;
136 plff->report->field[0]->value[3] = 0x00;
137 usbhid_submit_report(hid, plff->report, USB_DIR_OUT);
140 dev_info(&hid->dev, "Force feedback for PantherLord/GreenAsia "
141 "devices by Anssi Hannula <anssi.hannula@gmail.com>\n");
143 return 0;
145 #else
146 static inline int plff_init(struct hid_device *hid)
148 return 0;
150 #endif
152 static int pl_probe(struct hid_device *hdev, const struct hid_device_id *id)
154 int ret;
156 if (id->driver_data)
157 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
159 ret = hid_parse(hdev);
160 if (ret) {
161 dev_err(&hdev->dev, "parse failed\n");
162 goto err;
165 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
166 if (ret) {
167 dev_err(&hdev->dev, "hw start failed\n");
168 goto err;
171 plff_init(hdev);
173 return 0;
174 err:
175 return ret;
178 static const struct hid_device_id pl_devices[] = {
179 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR),
180 .driver_data = 1 }, /* Twin USB Joystick */
181 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR),
182 .driver_data = 1 }, /* Twin USB Joystick */
183 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003), }, /* GreenAsia Inc. USB Joystick */
186 MODULE_DEVICE_TABLE(hid, pl_devices);
188 static struct hid_driver pl_driver = {
189 .name = "pantherlord",
190 .id_table = pl_devices,
191 .probe = pl_probe,
194 static int pl_init(void)
196 return hid_register_driver(&pl_driver);
199 static void pl_exit(void)
201 hid_unregister_driver(&pl_driver);
204 module_init(pl_init);
205 module_exit(pl_exit);
206 MODULE_LICENSE("GPL");
208 HID_COMPAT_LOAD_DRIVER(pantherlord);