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HID: driver for Twinhan USB 6253:0100 remote control
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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>
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Bruno Premont authored and Jiri Kosina committed Jul 22, 2009
1 parent a24f423 commit 711a680
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Showing 5 changed files with 159 additions and 0 deletions.
7 changes: 7 additions & 0 deletions drivers/hid/Kconfig
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Expand Up @@ -152,6 +152,13 @@ config HID_GYRATION
---help---
Support for Gyration remote control.

config HID_TWINHAN
tristate "Twinhan" if EMBEDDED
depends on USB_HID
default !EMBEDDED
---help---
Support for Twinhan IR remote control.

config HID_KENSINGTON
tristate "Kensington" if EMBEDDED
depends on USB_HID
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1 change: 1 addition & 0 deletions drivers/hid/Makefile
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Expand Up @@ -40,6 +40,7 @@ obj-$(CONFIG_HID_SUNPLUS) += hid-sunplus.o
obj-$(CONFIG_HID_GREENASIA) += hid-gaff.o
obj-$(CONFIG_HID_THRUSTMASTER) += hid-tmff.o
obj-$(CONFIG_HID_TOPSEED) += hid-topseed.o
obj-$(CONFIG_HID_TWINHAN) += hid-twinhan.o
obj-$(CONFIG_HID_ZEROPLUS) += hid-zpff.o
obj-$(CONFIG_HID_WACOM) += hid-wacom.o

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1 change: 1 addition & 0 deletions drivers/hid/hid-core.c
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Expand Up @@ -1317,6 +1317,7 @@ static const struct hid_device_id hid_blacklist[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
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3 changes: 3 additions & 0 deletions drivers/hid/hid-ids.h
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Expand Up @@ -404,6 +404,9 @@
#define USB_VENDOR_ID_TURBOX 0x062a
#define USB_DEVICE_ID_TURBOX_KEYBOARD 0x0201

#define USB_VENDOR_ID_TWINHAN 0x6253
#define USB_DEVICE_ID_TWINHAN_IR_REMOTE 0x0100

#define USB_VENDOR_ID_UCLOGIC 0x5543
#define USB_DEVICE_ID_UCLOGIC_TABLET_PF1209 0x0042

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147 changes: 147 additions & 0 deletions drivers/hid/hid-twinhan.c
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@@ -0,0 +1,147 @@
/*
* HID driver for TwinHan IR remote control
*
* Based on hid-gyration.c
*
* Copyright (c) 2009 Bruno Prémont <bonbons@linux-vserver.org>
*/

/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License.
*/

#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>

#include "hid-ids.h"

/* Remote control key layout + listing:
*
* Full Screen Power
* KEY_SCREEN KEY_POWER2
*
* 1 2 3
* KEY_NUMERIC_1 KEY_NUMERIC_2 KEY_NUMERIC_3
*
* 4 5 6
* KEY_NUMERIC_4 KEY_NUMERIC_5 KEY_NUMERIC_6
*
* 7 8 9
* KEY_NUMERIC_7 KEY_NUMERIC_8 KEY_NUMERIC_9
*
* REC 0 Favorite
* KEY_RECORD KEY_NUMERIC_0 KEY_FAVORITES
*
* Rewind Forward
* KEY_REWIND CH+ KEY_FORWARD
* KEY_CHANNELUP
*
* VOL- > VOL+
* KEY_VOLUMEDOWN KEY_PLAY KEY_VOLUMEUP
*
* CH-
* KEY_CHANNELDOWN
* Recall Stop
* KEY_RESTART KEY_STOP
*
* Timeshift/Pause Mute Cancel
* KEY_PAUSE KEY_MUTE KEY_CANCEL
*
* Capture Preview EPG
* KEY_PRINT KEY_PROGRAM KEY_EPG
*
* Record List Tab Teletext
* KEY_LIST KEY_TAB KEY_TEXT
*/

#define th_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int twinhan_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_KEYBOARD)
return 0;

switch (usage->hid & HID_USAGE) {
/* Map all keys from Twinhan Remote */
case 0x004: th_map_key_clear(KEY_TEXT); break;
case 0x006: th_map_key_clear(KEY_RESTART); break;
case 0x008: th_map_key_clear(KEY_EPG); break;
case 0x00c: th_map_key_clear(KEY_REWIND); break;
case 0x00e: th_map_key_clear(KEY_PROGRAM); break;
case 0x00f: th_map_key_clear(KEY_LIST); break;
case 0x010: th_map_key_clear(KEY_MUTE); break;
case 0x011: th_map_key_clear(KEY_FORWARD); break;
case 0x013: th_map_key_clear(KEY_PRINT); break;
case 0x017: th_map_key_clear(KEY_PAUSE); break;
case 0x019: th_map_key_clear(KEY_FAVORITES); break;
case 0x01d: th_map_key_clear(KEY_SCREEN); break;
case 0x01e: th_map_key_clear(KEY_NUMERIC_1); break;
case 0x01f: th_map_key_clear(KEY_NUMERIC_2); break;
case 0x020: th_map_key_clear(KEY_NUMERIC_3); break;
case 0x021: th_map_key_clear(KEY_NUMERIC_4); break;
case 0x022: th_map_key_clear(KEY_NUMERIC_5); break;
case 0x023: th_map_key_clear(KEY_NUMERIC_6); break;
case 0x024: th_map_key_clear(KEY_NUMERIC_7); break;
case 0x025: th_map_key_clear(KEY_NUMERIC_8); break;
case 0x026: th_map_key_clear(KEY_NUMERIC_9); break;
case 0x027: th_map_key_clear(KEY_NUMERIC_0); break;
case 0x028: th_map_key_clear(KEY_PLAY); break;
case 0x029: th_map_key_clear(KEY_CANCEL); break;
case 0x02b: th_map_key_clear(KEY_TAB); break;
/* Power = 0x0e0 + 0x0e1 + 0x0e2 + 0x03f */
case 0x03f: th_map_key_clear(KEY_POWER2); break;
case 0x04a: th_map_key_clear(KEY_RECORD); break;
case 0x04b: th_map_key_clear(KEY_CHANNELUP); break;
case 0x04d: th_map_key_clear(KEY_STOP); break;
case 0x04e: th_map_key_clear(KEY_CHANNELDOWN); break;
/* Volume down = 0x0e1 + 0x051 */
case 0x051: th_map_key_clear(KEY_VOLUMEDOWN); break;
/* Volume up = 0x0e1 + 0x052 */
case 0x052: th_map_key_clear(KEY_VOLUMEUP); break;
/* Kill the extra keys used for multi-key "power" and "volume" keys
* as well as continuously to release CTRL,ALT,META,... keys */
case 0x0e0:
case 0x0e1:
case 0x0e2:
case 0x0e3:
case 0x0e4:
case 0x0e5:
case 0x0e6:
case 0x0e7:
default:
return -1;
}
return 1;
}

static const struct hid_device_id twinhan_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
{ }
};
MODULE_DEVICE_TABLE(hid, twinhan_devices);

static struct hid_driver twinhan_driver = {
.name = "twinhan",
.id_table = twinhan_devices,
.input_mapping = twinhan_input_mapping,
};

static int twinhan_init(void)
{
return hid_register_driver(&twinhan_driver);
}

static void twinhan_exit(void)
{
hid_unregister_driver(&twinhan_driver);
}

module_init(twinhan_init);
module_exit(twinhan_exit);
MODULE_LICENSE("GPL");

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