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// SPDX-License-Identifier: GPL-2.0
#include <asm-generic/errno-base.h>
#include <asm-generic/int-ll64.h>
#include <linux/bitops.h>
#include <linux/input.h>
#include <linux/input-event-codes.h>
#include <linux/module.h>
#include <linux/hid.h>
#include <linux/usb.h>
#include "hid-ids.h"
#define RAPOO_BTN_BACK 0x08
#define RAPOO_BTN_FORWARD 0x10
static const struct hid_device_id rapoo_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_RAPOO, USB_DEVICE_ID_RAPOO_2_4G_RECEIVER) },
{ }
};
MODULE_DEVICE_TABLE(hid, rapoo_devices);
static int rapoo_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
struct input_dev *input;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "start failed\n");
return ret;
}
if (hdev->bus == BUS_USB) {
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
if (intf->cur_altsetting->desc.bInterfaceNumber != 1)
return 0;
}
input = devm_input_allocate_device(&hdev->dev);
if (!input)
return -ENOMEM;
input->name = "Rapoo 2.4G Wireless Mouse";
input->phys = "rapoo/input1";
input->id.bustype = hdev->bus;
input->id.vendor = hdev->vendor;
input->id.product = hdev->product;
input->id.version = hdev->version;
__set_bit(EV_KEY, input->evbit);
__set_bit(KEY_BACK, input->keybit);
__set_bit(KEY_FORWARD, input->keybit);
ret = input_register_device(input);
if (ret)
return ret;
hid_set_drvdata(hdev, input);
return ret;
}
static int rapoo_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data, int size)
{
struct input_dev *input = hid_get_drvdata(hdev);
if (!input)
return 0;
if (report->id == 1 && size >= 2) {
u8 btn = data[1];
input_report_key(input, KEY_BACK, btn & RAPOO_BTN_BACK);
input_report_key(input, KEY_FORWARD, btn & RAPOO_BTN_FORWARD);
input_sync(input);
return 1;
}
return 0;
}
static struct hid_driver rapoo_driver = {
.name = "hid-rapoo",
.id_table = rapoo_devices,
.probe = rapoo_probe,
.raw_event = rapoo_raw_event,
};
module_hid_driver(rapoo_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Nguyen Dinh Dang Duong <dangduong31205@gmail.com>");
MODULE_DESCRIPTION("RAPOO 2.4G Wireless Device Driver");
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