cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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hid-tivo.c (2120B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 *  HID driver for TiVo Slide Bluetooth remote
      4 *
      5 *  Copyright (c) 2011 Jarod Wilson <jarod@redhat.com>
      6 *  based on the hid-topseed driver, which is in turn, based on hid-cherry...
      7 */
      8
      9/*
     10 */
     11
     12#include <linux/device.h>
     13#include <linux/hid.h>
     14#include <linux/module.h>
     15
     16#include "hid-ids.h"
     17
     18#define HID_UP_TIVOVENDOR	0xffff0000
     19#define tivo_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
     20					EV_KEY, (c))
     21
     22static int tivo_input_mapping(struct hid_device *hdev, struct hid_input *hi,
     23		struct hid_field *field, struct hid_usage *usage,
     24		unsigned long **bit, int *max)
     25{
     26	switch (usage->hid & HID_USAGE_PAGE) {
     27	case HID_UP_TIVOVENDOR:
     28		switch (usage->hid & HID_USAGE) {
     29		/* TiVo button */
     30		case 0x3d: tivo_map_key_clear(KEY_MEDIA);	break;
     31		/* Live TV */
     32		case 0x3e: tivo_map_key_clear(KEY_TV);		break;
     33		/* Red thumbs down */
     34		case 0x41: tivo_map_key_clear(KEY_KPMINUS);	break;
     35		/* Green thumbs up */
     36		case 0x42: tivo_map_key_clear(KEY_KPPLUS);	break;
     37		default:
     38			return 0;
     39		}
     40		break;
     41	case HID_UP_CONSUMER:
     42		switch (usage->hid & HID_USAGE) {
     43		/* Enter/Last (default mapping: KEY_LAST) */
     44		case 0x083: tivo_map_key_clear(KEY_ENTER);	break;
     45		/* Info (default mapping: KEY_PROPS) */
     46		case 0x209: tivo_map_key_clear(KEY_INFO);	break;
     47		default:
     48			return 0;
     49		}
     50		break;
     51	default:
     52		return 0;
     53	}
     54
     55	/* This means we found a matching mapping here, else, look in the
     56	 * standard hid mappings in hid-input.c */
     57	return 1;
     58}
     59
     60static const struct hid_device_id tivo_devices[] = {
     61	/* TiVo Slide Bluetooth remote, pairs with a Broadcom dongle */
     62	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
     63	{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
     64	{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_PRO) },
     65	{ }
     66};
     67MODULE_DEVICE_TABLE(hid, tivo_devices);
     68
     69static struct hid_driver tivo_driver = {
     70	.name = "tivo_slide",
     71	.id_table = tivo_devices,
     72	.input_mapping = tivo_input_mapping,
     73};
     74module_hid_driver(tivo_driver);
     75
     76MODULE_LICENSE("GPL");
     77MODULE_AUTHOR("Jarod Wilson <jarod@redhat.com>");