// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  HID driver for some gyration "special" devices
 *
 *  Copyright (c) 1999 Andreas Gal
 *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
 *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
 *  Copyright (c) 2008 Jiri Slaby
 *  Copyright (c) 2006-2008 Jiri Kosina
 */

/*
 */

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

#include "hid-ids.h"

#define gy_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
                                        EV_KEY, (c))
static int gyration_input_mapping(struct hid_device *hdev, struct hid_input *hi,
                struct hid_field *field, struct hid_usage *usage,
                unsigned long **bit, int *max)
{
        if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
                return 0;

        set_bit(EV_REP, hi->input->evbit);
        switch (usage->hid & HID_USAGE) {
        /* Reported on Gyration MCE Remote */
        case 0x00d: gy_map_key_clear(KEY_HOME);         break;
        case 0x024: gy_map_key_clear(KEY_DVD);          break;
        case 0x025: gy_map_key_clear(KEY_PVR);          break;
        case 0x046: gy_map_key_clear(KEY_MEDIA);        break;
        case 0x047: gy_map_key_clear(KEY_MP3);          break;
        case 0x048: gy_map_key_clear(KEY_MEDIA);        break;
        case 0x049: gy_map_key_clear(KEY_CAMERA);       break;
        case 0x04a: gy_map_key_clear(KEY_VIDEO);        break;
        case 0x05a: gy_map_key_clear(KEY_TEXT);         break;
        case 0x05b: gy_map_key_clear(KEY_RED);          break;
        case 0x05c: gy_map_key_clear(KEY_GREEN);        break;
        case 0x05d: gy_map_key_clear(KEY_YELLOW);       break;
        case 0x05e: gy_map_key_clear(KEY_BLUE);         break;

        default:
                return 0;
        }
        return 1;
}

static int gyration_event(struct hid_device *hdev, struct hid_field *field,
                struct hid_usage *usage, __s32 value)
{

        if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)
                return 0;

        if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK &&
                        (usage->hid & 0xff) == 0x82) {
                struct input_dev *input = field->hidinput->input;
                input_event(input, usage->type, usage->code, 1);
                input_sync(input);
                input_event(input, usage->type, usage->code, 0);
                input_sync(input);
                return 1;
        }

        return 0;
}

static const struct hid_device_id gyration_devices[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
        { }
};
MODULE_DEVICE_TABLE(hid, gyration_devices);

static struct hid_driver gyration_driver = {
        .name = "gyration",
        .id_table = gyration_devices,
        .input_mapping = gyration_input_mapping,
        .event = gyration_event,
};
module_hid_driver(gyration_driver);

MODULE_DESCRIPTION("HID driver for some gyration \"special\" devices");
MODULE_LICENSE("GPL");