1 // SPDX-License-Identifier: GPL-2.0-or-later
16 #include "hid-ids.h"
19 	struct hid_report *report;  member
29 	weak = effect->u.rumble.weak_magnitude;  in emsff_play()
30 	strong = effect->u.rumble.strong_magnitude;  in emsff_play()
37 	emsff->report->field[0]->value[1] = weak;  in emsff_play()
38 	emsff->report->field[0]->value[2] = strong;  in emsff_play()
41 	hid_hw_request(hid, emsff->report, HID_REQ_SET_REPORT);  in emsff_play()
49 	struct hid_report *report;  in emsff_init()  local
52 			&hid->report_enum[HID_OUTPUT_REPORT].report_list;  in emsff_init()
54 	int error;  in emsff_init()  local
56 	if (list_empty(&hid->inputs)) {  in emsff_init()
58 		return -ENODEV;  in emsff_init()
60 	hidinput = list_first_entry(&hid->inputs, struct hid_input, list);  in emsff_init()
61 	dev = hidinput->input;  in emsff_init()
65 		return -ENODEV;  in emsff_init()
68 	report = list_first_entry(report_list, struct hid_report, list);  in emsff_init()
69 	if (report->maxfield < 1) {  in emsff_init()
70 		hid_err(hid, "no fields in the report\n");  in emsff_init()
71 		return -ENODEV;  in emsff_init()
74 	if (report->field[0]->report_count < 7) {  in emsff_init()
76 		return -ENODEV;  in emsff_init()
81 		return -ENOMEM;  in emsff_init()
83 	set_bit(FF_RUMBLE, dev->ffbit);  in emsff_init()
85 	error = input_ff_create_memless(dev, emsff, emsff_play);  in emsff_init()
86 	if (error) {  in emsff_init()
88 		return error;  in emsff_init()
91 	emsff->report = report;  in emsff_init()
92 	emsff->report->field[0]->value[0] = 0x01;  in emsff_init()
93 	emsff->report->field[0]->value[1] = 0x00;  in emsff_init()
94 	emsff->report->field[0]->value[2] = 0x00;  in emsff_init()
95 	emsff->report->field[0]->value[3] = 0x00;  in emsff_init()
96 	emsff->report->field[0]->value[4] = 0x00;  in emsff_init()
97 	emsff->report->field[0]->value[5] = 0x00;  in emsff_init()
98 	emsff->report->field[0]->value[6] = 0x00;  in emsff_init()
99 	hid_hw_request(hid, emsff->report, HID_REQ_SET_REPORT);  in emsff_init()
124 		dev_err(&hdev->dev, "force feedback init failed\n");  in ems_probe()