// SPDX-License-Identifier: GPL-2.0+
/*
 *  HID driver for quirky Macally devices
 *
 *  Copyright (c) 2019 Alex Henrie <alexhenrie24@gmail.com>
 */

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

#include "hid-ids.h"

MODULE_AUTHOR("Alex Henrie <alexhenrie24@gmail.com>");
MODULE_DESCRIPTION("Macally devices");
MODULE_LICENSE("GPL");

/*
 * The Macally ikey keyboard says that its logical and usage maximums are both
 * 101, but the power key is 102 and the equals key is 103
 */
static const __u8 *macally_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                                        unsigned int *rsize)
{
        if (*rsize >= 60 && rdesc[53] == 0x65 && rdesc[59] == 0x65) {
                hid_info(hdev,
                        "fixing up Macally ikey keyboard report descriptor\n");
                rdesc[53] = rdesc[59] = 0x67;
        }
        return rdesc;
}

static const struct hid_device_id macally_id_table[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_SOLID_YEAR,
                         USB_DEVICE_ID_MACALLY_IKEY_KEYBOARD) },
        { }
};
MODULE_DEVICE_TABLE(hid, macally_id_table);

static struct hid_driver macally_driver = {
        .name                   = "macally",
        .id_table               = macally_id_table,
        .report_fixup           = macally_report_fixup,
};

module_hid_driver(macally_driver);