1 // SPDX-License-Identifier: GPL-2.0-or-later
8  *  on 2003-01-25 from the Logitech force feedback driver,
23 #include "hid-ids.h"
29 	-1
34 	-1
43 	struct hid_report *report;  member
52 	ret = (in * (maximum - minimum) / 0xffff) + minimum;  in tmff_scale_u16()
60 /* Changes values from -0x80 to 0x7f into values from minimum to maximum */
65 	ret = (((in + 0x80) * (maximum - minimum)) / 0xff) + minimum;  in tmff_scale_s8()
78 	struct hid_field *ff_field = tmff->ff_field;  in tmff_play()
83 	switch (effect->type) {  in tmff_play()
85 		x = tmff_scale_s8(effect->u.ramp.start_level,  in tmff_play()
86 					ff_field->logical_minimum,  in tmff_play()
87 					ff_field->logical_maximum);  in tmff_play()
88 		y = tmff_scale_s8(effect->u.ramp.end_level,  in tmff_play()
89 					ff_field->logical_minimum,  in tmff_play()
90 					ff_field->logical_maximum);  in tmff_play()
93 		ff_field->value[0] = x;  in tmff_play()
94 		ff_field->value[1] = y;  in tmff_play()
95 		hid_hw_request(hid, tmff->report, HID_REQ_SET_REPORT);  in tmff_play()
99 		left = tmff_scale_u16(effect->u.rumble.weak_magnitude,  in tmff_play()
100 					ff_field->logical_minimum,  in tmff_play()
101 					ff_field->logical_maximum);  in tmff_play()
102 		right = tmff_scale_u16(effect->u.rumble.strong_magnitude,  in tmff_play()
103 					ff_field->logical_minimum,  in tmff_play()
104 					ff_field->logical_maximum);  in tmff_play()
106 		/* 2-in-1 strong motor is left */  in tmff_play()
107 		if (hid->product == THRUSTMASTER_DEVICE_ID_2_IN_1_DT) {  in tmff_play()
114 		ff_field->value[0] = left;  in tmff_play()
115 		ff_field->value[1] = right;  in tmff_play()
116 		hid_hw_request(hid, tmff->report, HID_REQ_SET_REPORT);  in tmff_play()
125 	struct hid_report *report;  in tmff_init()  local
129 	int error;  in tmff_init()  local
132 	if (list_empty(&hid->inputs)) {  in tmff_init()
134 		return -ENODEV;  in tmff_init()
136 	hidinput = list_entry(hid->inputs.next, struct hid_input, list);  in tmff_init()
137 	input_dev = hidinput->input;  in tmff_init()
141 		return -ENOMEM;  in tmff_init()
143 	/* Find the report to use */  in tmff_init()
144 	report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;  in tmff_init()
145 	list_for_each_entry(report, report_list, list) {  in tmff_init()
148 		for (fieldnum = 0; fieldnum < report->maxfield; ++fieldnum) {  in tmff_init()
149 			struct hid_field *field = report->field[fieldnum];  in tmff_init()
151 			if (field->maxusage <= 0)  in tmff_init()
154 			switch (field->usage[0].hid) {  in tmff_init()
156 				if (field->report_count < 2) {  in tmff_init()
161 				if (field->logical_maximum ==  in tmff_init()
162 						field->logical_minimum) {  in tmff_init()
167 				if (tmff->report && tmff->report != report) {  in tmff_init()
168 					hid_warn(hid, "ignoring FF field in other report\n");  in tmff_init()
172 				if (tmff->ff_field && tmff->ff_field != field) {  in tmff_init()
177 				tmff->report = report;  in tmff_init()
178 				tmff->ff_field = field;  in tmff_init()
181 					set_bit(ff_bits[i], input_dev->ffbit);  in tmff_init()
187 					 field->usage[0].hid);  in tmff_init()
193 	if (!tmff->report) {  in tmff_init()
195 		error = -ENODEV;  in tmff_init()
199 	error = input_ff_create_memless(input_dev, tmff, tmff_play);  in tmff_init()
200 	if (error)  in tmff_init()
208 	return error;  in tmff_init()
233 	tmff_init(hdev, (void *)id->driver_data);  in tm_probe()
245 …B_DEVICE(USB_VENDOR_ID_THRUSTMASTER, THRUSTMASTER_DEVICE_ID_2_IN_1_DT),   /* Dual Trigger 2-in-1 */
247 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323),   /* Dual Trigger 3-in-1 (PC Mode) */
249 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324),   /* Dual Trigger 3-in-1 (PS3 Mode) */