711a680e35
Add explicit key mappings for TwinHan USB HID remote control. All dummy Ctrl, Alt, Meta, ... key press/release events generated by the remote are silenced by "unmapping" them. This makes Power and Volume keys single-key and strips the regular (even while idle) key release events for Ctrl, Alt, Meta, ... Signed-off-by: Bruno Premont <bonbons@linux-vserver.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
148 lines
4.8 KiB
C
148 lines
4.8 KiB
C
/*
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* HID driver for TwinHan IR remote control
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*
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* Based on hid-gyration.c
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*
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* Copyright (c) 2009 Bruno Prémont <bonbons@linux-vserver.org>
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*/
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/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License.
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*/
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#include <linux/device.h>
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#include <linux/input.h>
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#include <linux/hid.h>
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#include <linux/module.h>
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#include "hid-ids.h"
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/* Remote control key layout + listing:
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*
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* Full Screen Power
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* KEY_SCREEN KEY_POWER2
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*
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* 1 2 3
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* KEY_NUMERIC_1 KEY_NUMERIC_2 KEY_NUMERIC_3
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*
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* 4 5 6
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* KEY_NUMERIC_4 KEY_NUMERIC_5 KEY_NUMERIC_6
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*
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* 7 8 9
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* KEY_NUMERIC_7 KEY_NUMERIC_8 KEY_NUMERIC_9
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*
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* REC 0 Favorite
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* KEY_RECORD KEY_NUMERIC_0 KEY_FAVORITES
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*
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* Rewind Forward
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* KEY_REWIND CH+ KEY_FORWARD
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* KEY_CHANNELUP
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*
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* VOL- > VOL+
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* KEY_VOLUMEDOWN KEY_PLAY KEY_VOLUMEUP
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*
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* CH-
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* KEY_CHANNELDOWN
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* Recall Stop
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* KEY_RESTART KEY_STOP
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*
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* Timeshift/Pause Mute Cancel
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* KEY_PAUSE KEY_MUTE KEY_CANCEL
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*
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* Capture Preview EPG
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* KEY_PRINT KEY_PROGRAM KEY_EPG
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*
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* Record List Tab Teletext
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* KEY_LIST KEY_TAB KEY_TEXT
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*/
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#define th_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
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EV_KEY, (c))
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static int twinhan_input_mapping(struct hid_device *hdev, struct hid_input *hi,
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struct hid_field *field, struct hid_usage *usage,
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unsigned long **bit, int *max)
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{
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if ((usage->hid & HID_USAGE_PAGE) != HID_UP_KEYBOARD)
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return 0;
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switch (usage->hid & HID_USAGE) {
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/* Map all keys from Twinhan Remote */
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case 0x004: th_map_key_clear(KEY_TEXT); break;
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case 0x006: th_map_key_clear(KEY_RESTART); break;
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case 0x008: th_map_key_clear(KEY_EPG); break;
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case 0x00c: th_map_key_clear(KEY_REWIND); break;
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case 0x00e: th_map_key_clear(KEY_PROGRAM); break;
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case 0x00f: th_map_key_clear(KEY_LIST); break;
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case 0x010: th_map_key_clear(KEY_MUTE); break;
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case 0x011: th_map_key_clear(KEY_FORWARD); break;
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case 0x013: th_map_key_clear(KEY_PRINT); break;
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case 0x017: th_map_key_clear(KEY_PAUSE); break;
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case 0x019: th_map_key_clear(KEY_FAVORITES); break;
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case 0x01d: th_map_key_clear(KEY_SCREEN); break;
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case 0x01e: th_map_key_clear(KEY_NUMERIC_1); break;
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case 0x01f: th_map_key_clear(KEY_NUMERIC_2); break;
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case 0x020: th_map_key_clear(KEY_NUMERIC_3); break;
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case 0x021: th_map_key_clear(KEY_NUMERIC_4); break;
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case 0x022: th_map_key_clear(KEY_NUMERIC_5); break;
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case 0x023: th_map_key_clear(KEY_NUMERIC_6); break;
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case 0x024: th_map_key_clear(KEY_NUMERIC_7); break;
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case 0x025: th_map_key_clear(KEY_NUMERIC_8); break;
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case 0x026: th_map_key_clear(KEY_NUMERIC_9); break;
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case 0x027: th_map_key_clear(KEY_NUMERIC_0); break;
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case 0x028: th_map_key_clear(KEY_PLAY); break;
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case 0x029: th_map_key_clear(KEY_CANCEL); break;
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case 0x02b: th_map_key_clear(KEY_TAB); break;
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/* Power = 0x0e0 + 0x0e1 + 0x0e2 + 0x03f */
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case 0x03f: th_map_key_clear(KEY_POWER2); break;
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case 0x04a: th_map_key_clear(KEY_RECORD); break;
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case 0x04b: th_map_key_clear(KEY_CHANNELUP); break;
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case 0x04d: th_map_key_clear(KEY_STOP); break;
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case 0x04e: th_map_key_clear(KEY_CHANNELDOWN); break;
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/* Volume down = 0x0e1 + 0x051 */
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case 0x051: th_map_key_clear(KEY_VOLUMEDOWN); break;
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/* Volume up = 0x0e1 + 0x052 */
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case 0x052: th_map_key_clear(KEY_VOLUMEUP); break;
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/* Kill the extra keys used for multi-key "power" and "volume" keys
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* as well as continuously to release CTRL,ALT,META,... keys */
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case 0x0e0:
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case 0x0e1:
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case 0x0e2:
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case 0x0e3:
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case 0x0e4:
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case 0x0e5:
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case 0x0e6:
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case 0x0e7:
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default:
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return -1;
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}
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return 1;
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}
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static const struct hid_device_id twinhan_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, twinhan_devices);
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static struct hid_driver twinhan_driver = {
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.name = "twinhan",
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.id_table = twinhan_devices,
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.input_mapping = twinhan_input_mapping,
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};
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static int twinhan_init(void)
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{
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return hid_register_driver(&twinhan_driver);
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}
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static void twinhan_exit(void)
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{
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hid_unregister_driver(&twinhan_driver);
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}
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module_init(twinhan_init);
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module_exit(twinhan_exit);
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MODULE_LICENSE("GPL");
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