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Sergei Kolzun
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Jiri Kosina
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Jul 19, 2010
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| --- | ||
| refs/heads/master: 9929ffed889b4861b52ba648a44fa4add945c4d1 | ||
| refs/heads/master: c0dbcc33c652a0646542560de29a1c3f1ab7169f |
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| /* | ||
| * Force feedback support for ACRUX game controllers | ||
| * | ||
| * From what I have gathered, these devices are mass produced in China | ||
| * by several vendors. They often share the same design as the original | ||
| * Xbox 360 controller. | ||
| * | ||
| * 1a34:0802 "ACRUX USB GAMEPAD 8116" | ||
| * - tested with a EXEQ EQ-PCU-02090 game controller. | ||
| * | ||
| * Copyright (c) 2010 Sergei Kolzun <x0r@dv-life.ru> | ||
| */ | ||
|
|
||
| /* | ||
| * 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. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program; if not, write to the Free Software | ||
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| */ | ||
|
|
||
| #include <linux/input.h> | ||
| #include <linux/slab.h> | ||
| #include <linux/usb.h> | ||
| #include <linux/hid.h> | ||
|
|
||
| #include "hid-ids.h" | ||
| #include "usbhid/usbhid.h" | ||
|
|
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| struct axff_device { | ||
| struct hid_report *report; | ||
| }; | ||
|
|
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| static int axff_play(struct input_dev *dev, void *data, struct ff_effect *effect) | ||
| { | ||
| struct hid_device *hid = input_get_drvdata(dev); | ||
| struct axff_device *axff = data; | ||
| int left, right; | ||
|
|
||
| left = effect->u.rumble.strong_magnitude; | ||
| right = effect->u.rumble.weak_magnitude; | ||
|
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| dbg_hid("called with 0x%04x 0x%04x", left, right); | ||
|
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| left = left * 0xff / 0xffff; | ||
| right = right * 0xff / 0xffff; | ||
|
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| axff->report->field[0]->value[0] = left; | ||
| axff->report->field[1]->value[0] = right; | ||
| axff->report->field[2]->value[0] = left; | ||
| axff->report->field[3]->value[0] = right; | ||
| dbg_hid("running with 0x%02x 0x%02x", left, right); | ||
| usbhid_submit_report(hid, axff->report, USB_DIR_OUT); | ||
|
|
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| return 0; | ||
| } | ||
|
|
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| static int axff_init(struct hid_device *hid) | ||
| { | ||
| struct axff_device *axff; | ||
| struct hid_report *report; | ||
| struct hid_input *hidinput = list_first_entry(&hid->inputs, struct hid_input, list); | ||
| struct list_head *report_list =&hid->report_enum[HID_OUTPUT_REPORT].report_list; | ||
| struct input_dev *dev = hidinput->input; | ||
| int error; | ||
|
|
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| if (list_empty(report_list)) { | ||
| dev_err(&hid->dev, "no output reports found\n"); | ||
| return -ENODEV; | ||
| } | ||
|
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| report = list_first_entry(report_list, struct hid_report, list); | ||
|
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| if (report->maxfield < 4) { | ||
| dev_err(&hid->dev, "no fields in the report: %d\n", report->maxfield); | ||
| return -ENODEV; | ||
| } | ||
|
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| axff = kzalloc(sizeof(struct axff_device), GFP_KERNEL); | ||
| if (!axff) | ||
| return -ENOMEM; | ||
|
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| set_bit(FF_RUMBLE, dev->ffbit); | ||
|
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| error = input_ff_create_memless(dev, axff, axff_play); | ||
| if (error) | ||
| goto err_free_mem; | ||
|
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| axff->report = report; | ||
| axff->report->field[0]->value[0] = 0x00; | ||
| axff->report->field[1]->value[0] = 0x00; | ||
| axff->report->field[2]->value[0] = 0x00; | ||
| axff->report->field[3]->value[0] = 0x00; | ||
| usbhid_submit_report(hid, axff->report, USB_DIR_OUT); | ||
|
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| dev_info(&hid->dev, "Force Feedback for ACRUX game controllers by Sergei Kolzun<x0r@dv-life.ru>\n"); | ||
|
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| return 0; | ||
|
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| err_free_mem: | ||
| kfree(axff); | ||
| return error; | ||
| } | ||
|
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| static int ax_probe(struct hid_device *hdev, const struct hid_device_id *id) | ||
| { | ||
| int error; | ||
|
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| dev_dbg(&hdev->dev, "ACRUX HID hardware probe..."); | ||
|
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| error = hid_parse(hdev); | ||
| if (error) { | ||
| dev_err(&hdev->dev, "parse failed\n"); | ||
| return error; | ||
| } | ||
|
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| error = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); | ||
| if (error) { | ||
| dev_err(&hdev->dev, "hw start failed\n"); | ||
| return error; | ||
| } | ||
|
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| error = axff_init(hdev); | ||
| if (error) { | ||
| /* | ||
| * Do not fail device initialization completely as device | ||
| * may still be partially operable, just warn. | ||
| */ | ||
| dev_warn(&hdev->dev, | ||
| "Failed to enable force feedback support, error: %d\n", | ||
| error); | ||
| } | ||
|
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| return 0; | ||
| } | ||
|
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| static const struct hid_device_id ax_devices[] = { | ||
| { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802), }, | ||
| { } | ||
| }; | ||
| MODULE_DEVICE_TABLE(hid, ax_devices); | ||
|
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| static struct hid_driver ax_driver = { | ||
| .name = "acrux", | ||
| .id_table = ax_devices, | ||
| .probe = ax_probe, | ||
| }; | ||
|
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| static int __init ax_init(void) | ||
| { | ||
| return hid_register_driver(&ax_driver); | ||
| } | ||
|
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| static void __exit ax_exit(void) | ||
| { | ||
| hid_unregister_driver(&ax_driver); | ||
| } | ||
|
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| module_init(ax_init); | ||
| module_exit(ax_exit); | ||
|
|
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| MODULE_AUTHOR("Sergei Kolzun"); | ||
| MODULE_DESCRIPTION("Force feedback support for ACRUX game controllers"); | ||
| MODULE_LICENSE("GPL"); |
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