265 lines
7.0 KiB
C
265 lines
7.0 KiB
C
/*
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* Force feedback support for various HID compliant devices by ThrustMaster:
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* ThrustMaster FireStorm Dual Power 2
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* and possibly others whose device ids haven't been added.
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*
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* Modified to support ThrustMaster devices by Zinx Verituse
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* on 2003-01-25 from the Logitech force feedback driver,
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* which is by Johann Deneux.
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*
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* Copyright (c) 2003 Zinx Verituse <zinx@epicsol.org>
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* Copyright (c) 2002 Johann Deneux
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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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#include <linux/hid.h>
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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 "hid-ids.h"
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static const signed short ff_rumble[] = {
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FF_RUMBLE,
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-1
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};
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static const signed short ff_joystick[] = {
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FF_CONSTANT,
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-1
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};
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#ifdef CONFIG_THRUSTMASTER_FF
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/* Usages for thrustmaster devices I know about */
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#define THRUSTMASTER_USAGE_FF (HID_UP_GENDESK | 0xbb)
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struct tmff_device {
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struct hid_report *report;
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struct hid_field *ff_field;
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};
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/* Changes values from 0 to 0xffff into values from minimum to maximum */
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static inline int tmff_scale_u16(unsigned int in, int minimum, int maximum)
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{
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int ret;
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ret = (in * (maximum - minimum) / 0xffff) + minimum;
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if (ret < minimum)
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return minimum;
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if (ret > maximum)
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return maximum;
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return ret;
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}
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/* Changes values from -0x80 to 0x7f into values from minimum to maximum */
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static inline int tmff_scale_s8(int in, int minimum, int maximum)
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{
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int ret;
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ret = (((in + 0x80) * (maximum - minimum)) / 0xff) + minimum;
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if (ret < minimum)
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return minimum;
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if (ret > maximum)
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return maximum;
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return ret;
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}
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static int tmff_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 tmff_device *tmff = data;
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struct hid_field *ff_field = tmff->ff_field;
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int x, y;
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int left, right; /* Rumbling */
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switch (effect->type) {
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case FF_CONSTANT:
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x = tmff_scale_s8(effect->u.ramp.start_level,
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ff_field->logical_minimum,
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ff_field->logical_maximum);
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y = tmff_scale_s8(effect->u.ramp.end_level,
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ff_field->logical_minimum,
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ff_field->logical_maximum);
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dbg_hid("(x, y)=(%04x, %04x)\n", x, y);
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ff_field->value[0] = x;
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ff_field->value[1] = y;
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hid_hw_request(hid, tmff->report, HID_REQ_SET_REPORT);
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break;
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case FF_RUMBLE:
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left = tmff_scale_u16(effect->u.rumble.weak_magnitude,
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ff_field->logical_minimum,
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ff_field->logical_maximum);
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right = tmff_scale_u16(effect->u.rumble.strong_magnitude,
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ff_field->logical_minimum,
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ff_field->logical_maximum);
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dbg_hid("(left,right)=(%08x, %08x)\n", left, right);
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ff_field->value[0] = left;
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ff_field->value[1] = right;
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hid_hw_request(hid, tmff->report, HID_REQ_SET_REPORT);
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break;
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}
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return 0;
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}
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static int tmff_init(struct hid_device *hid, const signed short *ff_bits)
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{
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struct tmff_device *tmff;
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struct hid_report *report;
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struct list_head *report_list;
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struct hid_input *hidinput = list_entry(hid->inputs.next,
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struct hid_input, list);
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struct input_dev *input_dev = hidinput->input;
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int error;
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int i;
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tmff = kzalloc(sizeof(struct tmff_device), GFP_KERNEL);
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if (!tmff)
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return -ENOMEM;
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/* Find the report to use */
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report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
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list_for_each_entry(report, report_list, list) {
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int fieldnum;
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for (fieldnum = 0; fieldnum < report->maxfield; ++fieldnum) {
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struct hid_field *field = report->field[fieldnum];
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if (field->maxusage <= 0)
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continue;
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switch (field->usage[0].hid) {
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case THRUSTMASTER_USAGE_FF:
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if (field->report_count < 2) {
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hid_warn(hid, "ignoring FF field with report_count < 2\n");
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continue;
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}
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if (field->logical_maximum ==
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field->logical_minimum) {
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hid_warn(hid, "ignoring FF field with logical_maximum == logical_minimum\n");
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continue;
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}
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if (tmff->report && tmff->report != report) {
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hid_warn(hid, "ignoring FF field in other report\n");
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continue;
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}
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if (tmff->ff_field && tmff->ff_field != field) {
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hid_warn(hid, "ignoring duplicate FF field\n");
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continue;
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}
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tmff->report = report;
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tmff->ff_field = field;
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for (i = 0; ff_bits[i] >= 0; i++)
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set_bit(ff_bits[i], input_dev->ffbit);
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break;
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default:
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hid_warn(hid, "ignoring unknown output usage %08x\n",
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field->usage[0].hid);
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continue;
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}
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}
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}
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if (!tmff->report) {
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hid_err(hid, "can't find FF field in output reports\n");
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error = -ENODEV;
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goto fail;
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}
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error = input_ff_create_memless(input_dev, tmff, tmff_play);
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if (error)
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goto fail;
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hid_info(hid, "force feedback for ThrustMaster devices by Zinx Verituse <zinx@epicsol.org>\n");
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return 0;
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fail:
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kfree(tmff);
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return error;
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}
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#else
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static inline int tmff_init(struct hid_device *hid, const signed short *ff_bits)
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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 tm_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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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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tmff_init(hdev, (void *)id->driver_data);
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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 tm_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300),
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.driver_data = (unsigned long)ff_rumble },
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{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304), /* FireStorm Dual Power 2 (and 3) */
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.driver_data = (unsigned long)ff_rumble },
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{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323), /* Dual Trigger 3-in-1 (PC Mode) */
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.driver_data = (unsigned long)ff_rumble },
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{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324), /* Dual Trigger 3-in-1 (PS3 Mode) */
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.driver_data = (unsigned long)ff_rumble },
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{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651), /* FGT Rumble Force Wheel */
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.driver_data = (unsigned long)ff_rumble },
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{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653), /* RGT Force Feedback CLUTCH Raging Wheel */
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.driver_data = (unsigned long)ff_joystick },
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{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654), /* FGT Force Feedback Wheel */
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.driver_data = (unsigned long)ff_joystick },
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{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a), /* F430 Force Feedback Wheel */
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.driver_data = (unsigned long)ff_joystick },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, tm_devices);
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static struct hid_driver tm_driver = {
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.name = "thrustmaster",
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.id_table = tm_devices,
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.probe = tm_probe,
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};
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module_hid_driver(tm_driver);
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MODULE_LICENSE("GPL");
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