1 // SPDX-License-Identifier: GPL-2.0 2 #include <asm-generic/errno-base.h> 3 #include <asm-generic/int-ll64.h> 4 #include <linux/bitops.h> 5 #include <linux/input.h> 6 #include <linux/input-event-codes.h> 7 #include <linux/module.h> 8 #include <linux/hid.h> 9 #include <linux/usb.h> 10 11 #include "hid-ids.h" 12 13 #define RAPOO_BTN_BACK 0x08 14 #define RAPOO_BTN_FORWARD 0x10 15 16 static const struct hid_device_id rapoo_devices[] = { 17 { HID_USB_DEVICE(USB_VENDOR_ID_RAPOO, USB_DEVICE_ID_RAPOO_2_4G_RECEIVER) }, 18 { } 19 }; 20 MODULE_DEVICE_TABLE(hid, rapoo_devices); 21 22 static int rapoo_probe(struct hid_device *hdev, const struct hid_device_id *id) 23 { 24 int ret; 25 struct input_dev *input; 26 27 ret = hid_parse(hdev); 28 if (ret) { 29 hid_err(hdev, "parse failed\n"); 30 return ret; 31 } 32 33 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 34 if (ret) { 35 hid_err(hdev, "start failed\n"); 36 return ret; 37 } 38 39 if (hdev->bus == BUS_USB) { 40 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 41 42 if (intf->cur_altsetting->desc.bInterfaceNumber != 1) 43 return 0; 44 } 45 46 input = devm_input_allocate_device(&hdev->dev); 47 if (!input) 48 return -ENOMEM; 49 50 input->name = "Rapoo 2.4G Wireless Mouse"; 51 input->phys = "rapoo/input1"; 52 input->id.bustype = hdev->bus; 53 input->id.vendor = hdev->vendor; 54 input->id.product = hdev->product; 55 input->id.version = hdev->version; 56 57 __set_bit(EV_KEY, input->evbit); 58 __set_bit(KEY_BACK, input->keybit); 59 __set_bit(KEY_FORWARD, input->keybit); 60 61 ret = input_register_device(input); 62 if (ret) 63 return ret; 64 65 hid_set_drvdata(hdev, input); 66 67 return ret; 68 } 69 70 static int rapoo_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data, int size) 71 { 72 struct input_dev *input = hid_get_drvdata(hdev); 73 74 if (!input) 75 return 0; 76 77 if (report->id == 1 && size >= 2) { 78 u8 btn = data[1]; 79 80 input_report_key(input, KEY_BACK, btn & RAPOO_BTN_BACK); 81 input_report_key(input, KEY_FORWARD, btn & RAPOO_BTN_FORWARD); 82 input_sync(input); 83 return 1; 84 } 85 86 return 0; 87 } 88 89 static struct hid_driver rapoo_driver = { 90 .name = "hid-rapoo", 91 .id_table = rapoo_devices, 92 .probe = rapoo_probe, 93 .raw_event = rapoo_raw_event, 94 }; 95 96 module_hid_driver(rapoo_driver); 97 98 MODULE_LICENSE("GPL"); 99 MODULE_AUTHOR("Nguyen Dinh Dang Duong <dangduong31205@gmail.com>"); 100 MODULE_DESCRIPTION("RAPOO 2.4G Wireless Device Driver"); 101 102