drivers/hid/hid-gyration.c

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  *  HID driver for some gyration "special" devices
0004  *
0005  *  Copyright (c) 1999 Andreas Gal
0006  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
0007  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
0008  *  Copyright (c) 2008 Jiri Slaby
0009  *  Copyright (c) 2006-2008 Jiri Kosina
0010  */
0011
0012 /*
0013  */
0014
0015 #include <linux/device.h>
0016 #include <linux/input.h>
0017 #include <linux/hid.h>
0018 #include <linux/module.h>
0019
0020 #include "hid-ids.h"
0021
0022 #define gy_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
0023                     EV_KEY, (c))
0024 static int gyration_input_mapping(struct hid_device *hdev, struct hid_input *hi,
0025         struct hid_field *field, struct hid_usage *usage,
0026         unsigned long **bit, int *max)
0027 {
0028     if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
0029         return 0;
0030
0031     set_bit(EV_REP, hi->input->evbit);
0032     switch (usage->hid & HID_USAGE) {
0033     /* Reported on Gyration MCE Remote */
0034     case 0x00d: gy_map_key_clear(KEY_HOME);     break;
0035     case 0x024: gy_map_key_clear(KEY_DVD);      break;
0036     case 0x025: gy_map_key_clear(KEY_PVR);      break;
0037     case 0x046: gy_map_key_clear(KEY_MEDIA);    break;
0038     case 0x047: gy_map_key_clear(KEY_MP3);      break;
0039     case 0x048: gy_map_key_clear(KEY_MEDIA);    break;
0040     case 0x049: gy_map_key_clear(KEY_CAMERA);   break;
0041     case 0x04a: gy_map_key_clear(KEY_VIDEO);    break;
0042     case 0x05a: gy_map_key_clear(KEY_TEXT);     break;
0043     case 0x05b: gy_map_key_clear(KEY_RED);      break;
0044     case 0x05c: gy_map_key_clear(KEY_GREEN);    break;
0045     case 0x05d: gy_map_key_clear(KEY_YELLOW);   break;
0046     case 0x05e: gy_map_key_clear(KEY_BLUE);     break;
0047
0048     default:
0049         return 0;
0050     }
0051     return 1;
0052 }
0053
0054 static int gyration_event(struct hid_device *hdev, struct hid_field *field,
0055         struct hid_usage *usage, __s32 value)
0056 {
0057
0058     if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)
0059         return 0;
0060
0061     if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK &&
0062             (usage->hid & 0xff) == 0x82) {
0063         struct input_dev *input = field->hidinput->input;
0064         input_event(input, usage->type, usage->code, 1);
0065         input_sync(input);
0066         input_event(input, usage->type, usage->code, 0);
0067         input_sync(input);
0068         return 1;
0069     }
0070
0071     return 0;
0072 }
0073
0074 static const struct hid_device_id gyration_devices[] = {
0075     { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
0076     { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
0077     { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
0078     { }
0079 };
0080 MODULE_DEVICE_TABLE(hid, gyration_devices);
0081
0082 static struct hid_driver gyration_driver = {
0083     .name = "gyration",
0084     .id_table = gyration_devices,
0085     .input_mapping = gyration_input_mapping,
0086     .event = gyration_event,
0087 };
0088 module_hid_driver(gyration_driver);
0089
0090 MODULE_LICENSE("GPL");