2  * Force feedback support for hid-compliant for some of the devices from
4  * - WingMan Cordless RumblePad
5  * - WingMan Force 3D
7  *  Copyright (c) 2002-2004 Johann Deneux
13  * it under the terms of the GNU General Public License as published by
24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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>
37 #include "hid-lg.h"
42 	const signed short *ff;
45 static const signed short ff_rumble[] = {
47 	-1
50 static const signed short ff_joystick[] = {
52 	-1
55 static const signed short ff_joystick_ac[] = {
58 	-1
74 	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;  in hid_lgff_play()
75 	struct hid_report *report = list_entry(report_list->next, struct hid_report, list);  in hid_lgff_play()
81 	switch (effect->type) {  in hid_lgff_play()
83 		x = effect->u.ramp.start_level + 0x7f;	/* 0x7f is center */  in hid_lgff_play()
84 		y = effect->u.ramp.end_level + 0x7f;  in hid_lgff_play()
87 		report->field[0]->value[0] = 0x51;  in hid_lgff_play()
88 		report->field[0]->value[1] = 0x08;  in hid_lgff_play()
89 		report->field[0]->value[2] = x;  in hid_lgff_play()
90 		report->field[0]->value[3] = y;  in hid_lgff_play()
96 		right = effect->u.rumble.strong_magnitude;  in hid_lgff_play()
97 		left = effect->u.rumble.weak_magnitude;  in hid_lgff_play()
102 		report->field[0]->value[0] = 0x42;  in hid_lgff_play()
103 		report->field[0]->value[1] = 0x00;  in hid_lgff_play()
104 		report->field[0]->value[2] = left;  in hid_lgff_play()
105 		report->field[0]->value[3] = right;  in hid_lgff_play()
116 	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;  in hid_lgff_set_autocenter()
117 	struct hid_report *report = list_entry(report_list->next, struct hid_report, list);  in hid_lgff_set_autocenter()
118 	__s32 *value = report->field[0]->value;  in hid_lgff_set_autocenter()
123 	*value++ = magnitude;   /* counter-clockwise strength */  in hid_lgff_set_autocenter()
132 	struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);  in lgff_init()
133 	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;  in lgff_init()
134 	struct input_dev *dev = hidinput->input;  in lgff_init()
137 	const signed short *ff_bits = ff_joystick;  in lgff_init()
144 		return -1;  in lgff_init()
148 	report = list_entry(report_list->next, struct hid_report, list);  in lgff_init()
149 	field = report->field[0];  in lgff_init()
152 		return -1;  in lgff_init()
156 		if (dev->id.vendor == devices[i].idVendor &&  in lgff_init()
157 		    dev->id.product == devices[i].idProduct) {  in lgff_init()
164 		set_bit(ff_bits[i], dev->ffbit);  in lgff_init()
170 	if ( test_bit(FF_AUTOCENTER, dev->ffbit) )  in lgff_init()
171 		dev->ff->set_autocenter = hid_lgff_set_autocenter;  in lgff_init()
173 …pr_info("Force feedback for Logitech force feedback devices by Johann Deneux <johann.deneux@it.uu.…  in lgff_init()