HID: magicmouse: ignore 'ivalid report id' while switching modes
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / hid / hid-lgff.c
1 /*
2 * Force feedback support for hid-compliant for some of the devices from
3 * Logitech, namely:
4 * - WingMan Cordless RumblePad
5 * - WingMan Force 3D
6 *
7 * Copyright (c) 2002-2004 Johann Deneux
8 * Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
9 */
10
11 /*
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 *
26 * Should you need to contact me, the author, you can do so by
27 * e-mail - mail your message to <johann.deneux@it.uu.se>
28 */
29
30 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
31
32 #include <linux/input.h>
33 #include <linux/usb.h>
34 #include <linux/hid.h>
35
36 #include "usbhid/usbhid.h"
37 #include "hid-lg.h"
38
39 struct dev_type {
40 u16 idVendor;
41 u16 idProduct;
42 const signed short *ff;
43 };
44
45 static const signed short ff_rumble[] = {
46 FF_RUMBLE,
47 -1
48 };
49
50 static const signed short ff_joystick[] = {
51 FF_CONSTANT,
52 -1
53 };
54
55 static const signed short ff_joystick_ac[] = {
56 FF_CONSTANT,
57 FF_AUTOCENTER,
58 -1
59 };
60
61 static const signed short ff_wheel[] = {
62 FF_CONSTANT,
63 FF_AUTOCENTER,
64 -1
65 };
66
67 static const struct dev_type devices[] = {
68 { 0x046d, 0xc211, ff_rumble },
69 { 0x046d, 0xc219, ff_rumble },
70 { 0x046d, 0xc283, ff_joystick },
71 { 0x046d, 0xc286, ff_joystick_ac },
72 { 0x046d, 0xc287, ff_joystick_ac },
73 { 0x046d, 0xc293, ff_joystick },
74 { 0x046d, 0xc294, ff_wheel },
75 { 0x046d, 0xc298, ff_wheel },
76 { 0x046d, 0xc299, ff_wheel },
77 { 0x046d, 0xc29b, ff_wheel },
78 { 0x046d, 0xc295, ff_joystick },
79 { 0x046d, 0xca03, ff_wheel },
80 };
81
82 static int hid_lgff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
83 {
84 struct hid_device *hid = input_get_drvdata(dev);
85 struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
86 struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
87 int x, y;
88 unsigned int left, right;
89
90 #define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
91
92 switch (effect->type) {
93 case FF_CONSTANT:
94 x = effect->u.ramp.start_level + 0x7f; /* 0x7f is center */
95 y = effect->u.ramp.end_level + 0x7f;
96 CLAMP(x);
97 CLAMP(y);
98 report->field[0]->value[0] = 0x51;
99 report->field[0]->value[1] = 0x08;
100 report->field[0]->value[2] = x;
101 report->field[0]->value[3] = y;
102 dbg_hid("(x, y)=(%04x, %04x)\n", x, y);
103 usbhid_submit_report(hid, report, USB_DIR_OUT);
104 break;
105
106 case FF_RUMBLE:
107 right = effect->u.rumble.strong_magnitude;
108 left = effect->u.rumble.weak_magnitude;
109 right = right * 0xff / 0xffff;
110 left = left * 0xff / 0xffff;
111 CLAMP(left);
112 CLAMP(right);
113 report->field[0]->value[0] = 0x42;
114 report->field[0]->value[1] = 0x00;
115 report->field[0]->value[2] = left;
116 report->field[0]->value[3] = right;
117 dbg_hid("(left, right)=(%04x, %04x)\n", left, right);
118 usbhid_submit_report(hid, report, USB_DIR_OUT);
119 break;
120 }
121 return 0;
122 }
123
124 static void hid_lgff_set_autocenter(struct input_dev *dev, u16 magnitude)
125 {
126 struct hid_device *hid = input_get_drvdata(dev);
127 struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
128 struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
129 __s32 *value = report->field[0]->value;
130 magnitude = (magnitude >> 12) & 0xf;
131 *value++ = 0xfe;
132 *value++ = 0x0d;
133 *value++ = magnitude; /* clockwise strength */
134 *value++ = magnitude; /* counter-clockwise strength */
135 *value++ = 0x80;
136 *value++ = 0x00;
137 *value = 0x00;
138 usbhid_submit_report(hid, report, USB_DIR_OUT);
139 }
140
141 int lgff_init(struct hid_device* hid)
142 {
143 struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
144 struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
145 struct input_dev *dev = hidinput->input;
146 struct hid_report *report;
147 struct hid_field *field;
148 const signed short *ff_bits = ff_joystick;
149 int error;
150 int i;
151
152 /* Find the report to use */
153 if (list_empty(report_list)) {
154 hid_err(hid, "No output report found\n");
155 return -1;
156 }
157
158 /* Check that the report looks ok */
159 report = list_entry(report_list->next, struct hid_report, list);
160 field = report->field[0];
161 if (!field) {
162 hid_err(hid, "NULL field\n");
163 return -1;
164 }
165
166 for (i = 0; i < ARRAY_SIZE(devices); i++) {
167 if (dev->id.vendor == devices[i].idVendor &&
168 dev->id.product == devices[i].idProduct) {
169 ff_bits = devices[i].ff;
170 break;
171 }
172 }
173
174 for (i = 0; ff_bits[i] >= 0; i++)
175 set_bit(ff_bits[i], dev->ffbit);
176
177 error = input_ff_create_memless(dev, NULL, hid_lgff_play);
178 if (error)
179 return error;
180
181 if ( test_bit(FF_AUTOCENTER, dev->ffbit) )
182 dev->ff->set_autocenter = hid_lgff_set_autocenter;
183
184 pr_info("Force feedback for Logitech force feedback devices by Johann Deneux <johann.deneux@it.uu.se>\n");
185
186 return 0;
187 }