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Commit f8690450 authored by Marcel Hasler's avatar Marcel Hasler Committed by Jiri Kosina
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HID: Add new force feedback driver for Mayflash game controller adapters



Add a new module named hid-mf that implements force feedback for game
controller adapters manufactured by Mayflash. Currently only the PS3 adapter is
supported, other adapters still need to be tested.

Signed-off-by: default avatarMarcel Hasler <mahasler@gmail.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent b2554000
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+8 −0
Original line number Diff line number Diff line
@@ -512,6 +512,14 @@ config HID_MAGICMOUSE
	Say Y here if you want support for the multi-touch features of the
	Apple Wireless "Magic" Mouse and the Apple Wireless "Magic" Trackpad.

config HID_MAYFLASH
	tristate "Mayflash game controller adapter force feedback"
	depends on HID
	select INPUT_FF_MEMLESS
	---help---
	Say Y here if you have HJZ Mayflash PS3 game controller adapters
	and want to enable force feedback support.

config HID_MICROSOFT
	tristate "Microsoft non-fully HID-compliant devices"
	depends on HID
+1 −0
Original line number Diff line number Diff line
@@ -58,6 +58,7 @@ obj-$(CONFIG_HID_LOGITECH) += hid-logitech.o
obj-$(CONFIG_HID_LOGITECH_DJ)	+= hid-logitech-dj.o
obj-$(CONFIG_HID_LOGITECH_HIDPP)	+= hid-logitech-hidpp.o
obj-$(CONFIG_HID_MAGICMOUSE)	+= hid-magicmouse.o
obj-$(CONFIG_HID_MAYFLASH)	+= hid-mf.o
obj-$(CONFIG_HID_MICROSOFT)	+= hid-microsoft.o
obj-$(CONFIG_HID_MONTEREY)	+= hid-monterey.o
obj-$(CONFIG_HID_MULTITOUCH)	+= hid-multitouch.o
+3 −0
Original line number Diff line number Diff line
@@ -1883,6 +1883,9 @@ static const struct hid_device_id hid_have_special_driver[] = {
	{ HID_USB_DEVICE(USB_VENDOR_ID_DELCOM, USB_DEVICE_ID_DELCOM_VISUAL_IND) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
#if IS_ENABLED(CONFIG_HID_MAYFLASH)
	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3) },
#endif
	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, USB_DEVICE_ID_DREAM_CHEEKY_WN) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, USB_DEVICE_ID_DREAM_CHEEKY_FA) },
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },

drivers/hid/hid-mf.c

0 → 100644
+166 −0
Original line number Diff line number Diff line
/*
 * Force feedback support for Mayflash game controller adapters.
 *
 * These devices are manufactured by Mayflash but identify themselves
 * using the vendor ID of DragonRise Inc.
 *
 * Tested with:
 * 0079:1801 "DragonRise Inc. Mayflash PS3 Game Controller Adapter"
 *
 * The following adapters probably work too, but need to be tested:
 * 0079:1800 "DragonRise Inc. Mayflash WIIU Game Controller Adapter"
 * 0079:1843 "DragonRise Inc. Mayflash GameCube Game Controller Adapter"
 *
 * Copyright (c) 2016 Marcel Hasler <mahasler@gmail.com>
 */

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/input.h>
#include <linux/slab.h>
#include <linux/hid.h>
#include <linux/module.h>

#include "hid-ids.h"

struct mf_device {
	struct hid_report *report;
};

static int mf_play(struct input_dev *dev, void *data, struct ff_effect *effect)
{
	struct hid_device *hid = input_get_drvdata(dev);
	struct mf_device *mf = data;
	int strong, weak;

	strong = effect->u.rumble.strong_magnitude;
	weak = effect->u.rumble.weak_magnitude;

	dbg_hid("Called with 0x%04x 0x%04x.\n", strong, weak);

	strong = strong * 0xff / 0xffff;
	weak = weak * 0xff / 0xffff;

	dbg_hid("Running with 0x%02x 0x%02x.\n", strong, weak);

	mf->report->field[0]->value[0] = weak;
	mf->report->field[0]->value[1] = strong;
	hid_hw_request(hid, mf->report, HID_REQ_SET_REPORT);

	return 0;
}

static int mf_init(struct hid_device *hid)
{
	struct mf_device *mf;

	struct list_head *report_list =
			&hid->report_enum[HID_OUTPUT_REPORT].report_list;

	struct list_head *report_ptr;
	struct hid_report *report;

	struct list_head *input_ptr = &hid->inputs;
	struct hid_input *input;

	struct input_dev *dev;

	int error;

	/* Setup each of the four inputs */
	list_for_each(report_ptr, report_list) {
		report = list_entry(report_ptr, struct hid_report, list);

		if (report->maxfield < 1 || report->field[0]->report_count < 2) {
			hid_err(hid, "Invalid report, this should never happen!\n");
			return -ENODEV;
		}

		if (list_is_last(input_ptr, &hid->inputs)) {
			hid_err(hid, "Missing input, this should never happen!\n");
			return -ENODEV;
		}

		input_ptr = input_ptr->next;
		input = list_entry(input_ptr, struct hid_input, list);

		mf = kzalloc(sizeof(struct mf_device), GFP_KERNEL);
		if (!mf)
			return -ENOMEM;

		dev = input->input;
		set_bit(FF_RUMBLE, dev->ffbit);

		error = input_ff_create_memless(dev, mf, mf_play);
		if (error) {
			kfree(mf);
			return error;
		}

		mf->report = report;
		mf->report->field[0]->value[0] = 0x00;
		mf->report->field[0]->value[1] = 0x00;
		hid_hw_request(hid, mf->report, HID_REQ_SET_REPORT);
	}

	hid_info(hid, "Force feedback for HJZ Mayflash game controller "
		      "adapters by Marcel Hasler <mahasler@gmail.com>\n");

	return 0;
}

static int mf_probe(struct hid_device *hid, const struct hid_device_id *id)
{
	int error;

	dev_dbg(&hid->dev, "Mayflash HID hardware probe...\n");

	/* Split device into four inputs */
	hid->quirks |= HID_QUIRK_MULTI_INPUT;

	error = hid_parse(hid);
	if (error) {
		hid_err(hid, "HID parse failed.\n");
		return error;
	}

	error = hid_hw_start(hid, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
	if (error) {
		hid_err(hid, "HID hw start failed\n");
		return error;
	}

	error = mf_init(hid);
	if (error) {
		hid_err(hid, "Force feedback init failed.\n");
		hid_hw_stop(hid);
		return error;
	}

	return 0;
}

static const struct hid_device_id mf_devices[] = {
	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3),  },
	{ }
};
MODULE_DEVICE_TABLE(hid, mf_devices);

static struct hid_driver mf_driver = {
	.name = "hid_mf",
	.id_table = mf_devices,
	.probe = mf_probe,
};
module_hid_driver(mf_driver);

MODULE_LICENSE("GPL");