--- /dev/null
+/*
+ * Force feedback support for GreenAsia (Product ID 0x12) based devices
+ *
+ * The devices are distributed under various names and the same USB device ID
+ * can be used in many game controllers.
+ *
+ *
+ * 0e8f:0012 "GreenAsia Inc. USB Joystick "
+ * - tested with MANTA Warior MM816 and SpeedLink Strike2 SL-6635.
+ *
+ * Copyright (c) 2008 Lukasz Lubojanski <lukasz@lubojanski.info>
+ */
+
+/*
+ * 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/usb.h>
+#include <linux/hid.h>
+#include "hid-ids.h"
+#include "usbhid/usbhid.h"
+
+struct gaff_device {
+ struct hid_report *report;
+};
+
+static int hid_gaff_play(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ struct hid_device *hid = input_get_drvdata(dev);
+ struct gaff_device *gaff = data;
+ int left, right;
+
+ left = effect->u.rumble.strong_magnitude;
+ right = effect->u.rumble.weak_magnitude;
+
+ dbg_hid("called with 0x%04x 0x%04x", left, right);
+
+ left = left * 0xfe / 0xffff;
+ right = right * 0xfe / 0xffff;
+
+ gaff->report->field[0]->value[0] = 0x51;
+ gaff->report->field[0]->value[1] = 0x0;
+ gaff->report->field[0]->value[2] = right;
+ gaff->report->field[0]->value[3] = 0;
+ gaff->report->field[0]->value[4] = left;
+ gaff->report->field[0]->value[5] = 0;
+ dbg_hid("running with 0x%02x 0x%02x", left, right);
+ usbhid_submit_report(hid, gaff->report, USB_DIR_OUT);
+
+ gaff->report->field[0]->value[0] = 0xfa;
+ gaff->report->field[0]->value[1] = 0xfe;
+ gaff->report->field[0]->value[2] = 0x0;
+ gaff->report->field[0]->value[4] = 0x0;
+
+ usbhid_submit_report(hid, gaff->report, USB_DIR_OUT);
+
+ return 0;
+}
+
+static int gaff_init(struct hid_device *hid)
+{
+ struct gaff_device *gaff;
+ struct hid_report *report;
+ struct hid_input *hidinput = list_entry(hid->inputs.next,
+ struct hid_input, list);
+ struct list_head *report_list =
+ &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct list_head *report_ptr = report_list;
+ struct input_dev *dev = hidinput->input;
+ int error;
+
+ if (list_empty(report_list)) {
+ dev_err(&hid->dev, "no output reports found\n");
+ return -ENODEV;
+ }
+
+ report_ptr = report_ptr->next;
+
+ report = list_entry(report_ptr, struct hid_report, list);
+ if (report->maxfield < 1) {
+ dev_err(&hid->dev, "no fields in the report\n");
+ return -ENODEV;
+ }
+
+ if (report->field[0]->report_count < 6) {
+ dev_err(&hid->dev, "not enough values in the field\n");
+ return -ENODEV;
+ }
+
+ gaff = kzalloc(sizeof(struct gaff_device), GFP_KERNEL);
+ if (!gaff)
+ return -ENOMEM;
+
+ set_bit(FF_RUMBLE, dev->ffbit);
+
+ error = input_ff_create_memless(dev, gaff, hid_gaff_play);
+ if (error) {
+ kfree(gaff);
+ return error;
+ }
+
+ gaff->report = report;
+ gaff->report->field[0]->value[0] = 0x51;
+ gaff->report->field[0]->value[1] = 0x00;
+ gaff->report->field[0]->value[2] = 0x00;
+ gaff->report->field[0]->value[3] = 0x00;
+ usbhid_submit_report(hid, gaff->report, USB_DIR_OUT);
+
+ gaff->report->field[0]->value[0] = 0xfa;
+ gaff->report->field[0]->value[1] = 0xfe;
+
+ usbhid_submit_report(hid, gaff->report, USB_DIR_OUT);
+
+ dev_info(&hid->dev, "Force Feedback for GreenAsia 0x12"
+ " devices by Lukasz Lubojanski <lukasz@lubojanski.info>\n");
+
+ return 0;
+}
+
+static int ga_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ int ret;
+
+ dev_dbg(&hdev->dev, "Greenasia HID hardware probe...");
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ dev_err(&hdev->dev, "parse failed\n");
+ goto err;
+ }
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
+ if (ret) {
+ dev_err(&hdev->dev, "hw start failed\n");
+ goto err;
+ }
+
+ gaff_init(hdev);
+
+ return 0;
+err:
+ return ret;
+}
+
+static const struct hid_device_id ga_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012), },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, ga_devices);
+
+static struct hid_driver ga_driver = {
+ .name = "greenasia",
+ .id_table = ga_devices,
+ .probe = ga_probe,
+};
+
+static int __init ga_init(void)
+{
+ return hid_register_driver(&ga_driver);
+}
+
+static void __exit ga_exit(void)
+{
+ hid_unregister_driver(&ga_driver);
+}
+
+module_init(ga_init);
+module_exit(ga_exit);
+MODULE_LICENSE("GPL");
+
+HID_COMPAT_LOAD_DRIVER(greenasia);
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff