HID: driver for Twinhan USB 6253:0100 remote control
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>
diff --git a/drivers/hid/hid-twinhan.c b/drivers/hid/hid-twinhan.c
new file mode 100644
index 0000000..b05f602
--- /dev/null
+++ b/drivers/hid/hid-twinhan.c
@@ -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");