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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
96 lines
2.2 KiB
C
96 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Force feedback support for Logitech RumblePad and Rumblepad 2
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*
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* Copyright (c) 2008 Anssi Hannula <anssi.hannula@gmail.com>
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*/
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/*
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*/
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#include <linux/input.h>
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#include <linux/slab.h>
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#include <linux/hid.h>
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#include "hid-lg.h"
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struct lg2ff_device {
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struct hid_report *report;
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};
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static int play_effect(struct input_dev *dev, void *data,
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struct ff_effect *effect)
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{
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struct hid_device *hid = input_get_drvdata(dev);
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struct lg2ff_device *lg2ff = data;
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int weak, strong;
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strong = effect->u.rumble.strong_magnitude;
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weak = effect->u.rumble.weak_magnitude;
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if (weak || strong) {
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weak = weak * 0xff / 0xffff;
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strong = strong * 0xff / 0xffff;
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lg2ff->report->field[0]->value[0] = 0x51;
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lg2ff->report->field[0]->value[2] = weak;
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lg2ff->report->field[0]->value[4] = strong;
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} else {
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lg2ff->report->field[0]->value[0] = 0xf3;
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lg2ff->report->field[0]->value[2] = 0x00;
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lg2ff->report->field[0]->value[4] = 0x00;
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}
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hid_hw_request(hid, lg2ff->report, HID_REQ_SET_REPORT);
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return 0;
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}
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int lg2ff_init(struct hid_device *hid)
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{
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struct lg2ff_device *lg2ff;
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struct hid_report *report;
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struct hid_input *hidinput;
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struct input_dev *dev;
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int error;
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if (list_empty(&hid->inputs)) {
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hid_err(hid, "no inputs found\n");
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return -ENODEV;
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}
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hidinput = list_entry(hid->inputs.next, struct hid_input, list);
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dev = hidinput->input;
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/* Check that the report looks ok */
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report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7);
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if (!report)
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return -ENODEV;
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lg2ff = kmalloc_obj(struct lg2ff_device);
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if (!lg2ff)
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return -ENOMEM;
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set_bit(FF_RUMBLE, dev->ffbit);
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error = input_ff_create_memless(dev, lg2ff, play_effect);
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if (error) {
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kfree(lg2ff);
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return error;
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}
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lg2ff->report = report;
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report->field[0]->value[0] = 0xf3;
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report->field[0]->value[1] = 0x00;
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report->field[0]->value[2] = 0x00;
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report->field[0]->value[3] = 0x00;
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report->field[0]->value[4] = 0x00;
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report->field[0]->value[5] = 0x00;
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report->field[0]->value[6] = 0x00;
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hid_hw_request(hid, report, HID_REQ_SET_REPORT);
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hid_info(hid, "Force feedback for Logitech variant 2 rumble devices by Anssi Hannula <anssi.hannula@gmail.com>\n");
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return 0;
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}
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