1 // SPDX-License-Identifier: GPL-2.0-or-later
9  *   - tested with PantherLord USB/PS2 2in1 Adapter
10  *   - contains two reports, one for each port (HID_QUIRK_MULTI_INPUT)
13  *   - tested with König Gaming gamepad
16  *   - another version of the König gamepad
29 #define debug(format, arg...) pr_debug("hid-plff: " format "\n" , ## arg)
36 #include "hid-ids.h"
41 	struct hid_report *report;  member
54 	left = effect->u.rumble.strong_magnitude;  in hid_plff_play()
55 	right = effect->u.rumble.weak_magnitude;  in hid_plff_play()
58 	left = left * plff->maxval / 0xffff;  in hid_plff_play()
59 	right = right * plff->maxval / 0xffff;  in hid_plff_play()
61 	*plff->strong = left;  in hid_plff_play()
62 	*plff->weak = right;  in hid_plff_play()
64 	hid_hw_request(hid, plff->report, HID_REQ_SET_REPORT);  in hid_plff_play()
72 	struct hid_report *report;  in plff_init()  local
75 			&hid->report_enum[HID_OUTPUT_REPORT].report_list;  in plff_init()
78 	int error;  in plff_init()  local
83 	/* The device contains one output report per physical device, all  in plff_init()
93 	   Zeroplus (hid-zpff) devices.  in plff_init()
98 		return -ENODEV;  in plff_init()
101 	list_for_each_entry(hidinput, &hid->inputs, list) {  in plff_init()
103 		report_ptr = report_ptr->next;  in plff_init()
106 			hid_err(hid, "required output report is missing\n");  in plff_init()
107 			return -ENODEV;  in plff_init()
110 		report = list_entry(report_ptr, struct hid_report, list);  in plff_init()
111 		if (report->maxfield < 1) {  in plff_init()
112 			hid_err(hid, "no fields in the report\n");  in plff_init()
113 			return -ENODEV;  in plff_init()
117 		if (report->field[0]->report_count >= 4) {  in plff_init()
118 			report->field[0]->value[0] = 0x00;  in plff_init()
119 			report->field[0]->value[1] = 0x00;  in plff_init()
120 			strong = &report->field[0]->value[2];  in plff_init()
121 			weak = &report->field[0]->value[3];  in plff_init()
122 			debug("detected single-field device");  in plff_init()
123 		} else if (report->field[0]->maxusage == 1 &&  in plff_init()
124 			   report->field[0]->usage[0].hid ==  in plff_init()
126 			   report->maxfield >= 4 &&  in plff_init()
127 			   report->field[0]->report_count >= 1 &&  in plff_init()
128 			   report->field[1]->report_count >= 1 &&  in plff_init()
129 			   report->field[2]->report_count >= 1 &&  in plff_init()
130 			   report->field[3]->report_count >= 1) {  in plff_init()
131 			report->field[0]->value[0] = 0x00;  in plff_init()
132 			report->field[1]->value[0] = 0x00;  in plff_init()
133 			strong = &report->field[2]->value[0];  in plff_init()
134 			weak = &report->field[3]->value[0];  in plff_init()
135 			if (hid->vendor == USB_VENDOR_ID_JESS2)  in plff_init()
137 			debug("detected 4-field device");  in plff_init()
140 			return -ENODEV;  in plff_init()
145 			return -ENOMEM;  in plff_init()
147 		dev = hidinput->input;  in plff_init()
149 		set_bit(FF_RUMBLE, dev->ffbit);  in plff_init()
151 		error = input_ff_create_memless(dev, plff, hid_plff_play);  in plff_init()
152 		if (error) {  in plff_init()
154 			return error;  in plff_init()
157 		plff->report = report;  in plff_init()
158 		plff->strong = strong;  in plff_init()
159 		plff->weak = weak;  in plff_init()
160 		plff->maxval = maxval;  in plff_init()
164 		hid_hw_request(hid, plff->report, HID_REQ_SET_REPORT);  in plff_init()
182 	if (id->driver_data)  in pl_probe()
183 		hdev->quirks |= HID_QUIRK_MULTI_INPUT;  in pl_probe()