235 lines
6.1 KiB
C
235 lines
6.1 KiB
C
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/*
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* Force feedback support for PantherLord/GreenAsia based devices
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*
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* The devices are distributed under various names and the same USB device ID
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* can be used in both adapters and actual game controllers.
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*
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* 0810:0001 "Twin USB Joystick"
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* - tested with PantherLord USB/PS2 2in1 Adapter
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* - contains two reports, one for each port (HID_QUIRK_MULTI_INPUT)
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*
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* 0e8f:0003 "GreenAsia Inc. USB Joystick "
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* - tested with König Gaming gamepad
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*
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* 0e8f:0003 "GASIA USB Gamepad"
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* - another version of the König gamepad
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*
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* 0f30:0111 "Saitek Color Rumble Pad"
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*
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* Copyright (c) 2007, 2009 Anssi Hannula <anssi.hannula@gmail.com>
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* #define DEBUG */
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#define debug(format, arg...) pr_debug("hid-plff: " format "\n" , ## arg)
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#include <linux/input.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/hid.h>
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#include "hid-ids.h"
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#ifdef CONFIG_PANTHERLORD_FF
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struct plff_device {
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struct hid_report *report;
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s32 maxval;
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s32 *strong;
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s32 *weak;
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};
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static int hid_plff_play(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 plff_device *plff = data;
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int left, right;
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left = effect->u.rumble.strong_magnitude;
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right = effect->u.rumble.weak_magnitude;
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debug("called with 0x%04x 0x%04x", left, right);
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left = left * plff->maxval / 0xffff;
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right = right * plff->maxval / 0xffff;
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*plff->strong = left;
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*plff->weak = right;
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debug("running with 0x%02x 0x%02x", left, right);
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hid_hw_request(hid, plff->report, HID_REQ_SET_REPORT);
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return 0;
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}
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static int plff_init(struct hid_device *hid)
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{
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struct plff_device *plff;
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struct hid_report *report;
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struct hid_input *hidinput;
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struct list_head *report_list =
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&hid->report_enum[HID_OUTPUT_REPORT].report_list;
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struct list_head *report_ptr = report_list;
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struct input_dev *dev;
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int error;
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s32 maxval;
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s32 *strong;
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s32 *weak;
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/* The device contains one output report per physical device, all
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containing 1 field, which contains 4 ff00.0002 usages and 4 16bit
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absolute values.
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The input reports also contain a field which contains
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8 ff00.0001 usages and 8 boolean values. Their meaning is
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currently unknown.
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A version of the 0e8f:0003 exists that has all the values in
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separate fields and misses the extra input field, thus resembling
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Zeroplus (hid-zpff) devices.
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*/
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if (list_empty(report_list)) {
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hid_err(hid, "no output reports found\n");
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return -ENODEV;
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}
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list_for_each_entry(hidinput, &hid->inputs, list) {
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report_ptr = report_ptr->next;
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if (report_ptr == report_list) {
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hid_err(hid, "required output report is missing\n");
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return -ENODEV;
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}
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report = list_entry(report_ptr, struct hid_report, list);
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if (report->maxfield < 1) {
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hid_err(hid, "no fields in the report\n");
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return -ENODEV;
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}
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maxval = 0x7f;
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if (report->field[0]->report_count >= 4) {
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report->field[0]->value[0] = 0x00;
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report->field[0]->value[1] = 0x00;
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strong = &report->field[0]->value[2];
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weak = &report->field[0]->value[3];
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debug("detected single-field device");
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} else if (report->field[0]->maxusage == 1 &&
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report->field[0]->usage[0].hid ==
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(HID_UP_LED | 0x43) &&
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report->maxfield >= 4 &&
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report->field[0]->report_count >= 1 &&
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report->field[1]->report_count >= 1 &&
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report->field[2]->report_count >= 1 &&
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report->field[3]->report_count >= 1) {
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report->field[0]->value[0] = 0x00;
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report->field[1]->value[0] = 0x00;
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strong = &report->field[2]->value[0];
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weak = &report->field[3]->value[0];
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if (hid->vendor == USB_VENDOR_ID_JESS2)
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maxval = 0xff;
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debug("detected 4-field device");
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} else {
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hid_err(hid, "not enough fields or values\n");
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return -ENODEV;
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}
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plff = kzalloc(sizeof(struct plff_device), GFP_KERNEL);
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if (!plff)
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return -ENOMEM;
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dev = hidinput->input;
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set_bit(FF_RUMBLE, dev->ffbit);
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error = input_ff_create_memless(dev, plff, hid_plff_play);
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if (error) {
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kfree(plff);
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return error;
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}
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plff->report = report;
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plff->strong = strong;
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plff->weak = weak;
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plff->maxval = maxval;
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*strong = 0x00;
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*weak = 0x00;
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hid_hw_request(hid, plff->report, HID_REQ_SET_REPORT);
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}
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hid_info(hid, "Force feedback for PantherLord/GreenAsia devices by Anssi Hannula <anssi.hannula@gmail.com>\n");
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return 0;
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}
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#else
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static inline int plff_init(struct hid_device *hid)
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{
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return 0;
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}
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#endif
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static int pl_probe(struct hid_device *hdev, const struct hid_device_id *id)
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{
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int ret;
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if (id->driver_data)
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hdev->quirks |= HID_QUIRK_MULTI_INPUT;
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ret = hid_parse(hdev);
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if (ret) {
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hid_err(hdev, "parse failed\n");
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goto err;
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}
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ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
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if (ret) {
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hid_err(hdev, "hw start failed\n");
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goto err;
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}
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plff_init(hdev);
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return 0;
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err:
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return ret;
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}
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static const struct hid_device_id pl_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR),
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.driver_data = 1 }, /* Twin USB Joystick */
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{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR),
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.driver_data = 1 }, /* Twin USB Joystick */
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{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003), },
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{ HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD), },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, pl_devices);
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static struct hid_driver pl_driver = {
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.name = "pantherlord",
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.id_table = pl_devices,
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.probe = pl_probe,
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};
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module_hid_driver(pl_driver);
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MODULE_LICENSE("GPL");
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