Re: Input driver for Twinhan USB 6253:0100 remote control
From: Bruno Prémont <bonbons@linux-vserver.org>
Date: 2009-07-12 16:27:55
Also in:
lkml
Subsystem:
hid core layer, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds
On Thu, 16 April 2009 Jiri Kosina [off-list ref] wrote:
On Wed, 15 Apr 2009, Mark Lord wrote:quoted
quoted
Yes, hid-belking is a good example of trivial driver that sits on a HID bus for you, as it utilizes the ->input_mapping() callback, which is probably the only callback from HID core you'd need.Actually, the input-mapping() alone won't do the job here. This Twinhan remote control sends single-byte codes for most buttons, but some buttons send multi-byte codes, and we have to discard the extraneous bytes somehow.If the usages make it through the generic HID layer (depends on the report descriptor of the device), then just registering hid_driver with ->event() set to your callback and fixing this on the fly could be enough.
I do have such a remote around. I wrote the below patch to adjust it's key mappings, though I'm not sure if/how I should deal with the number keys (0..9) with regard to keyboard layout and/or numlock key. I tried with KEY_0..KEY_9 (default) as well as KEY_KP0..KEY_KP9 but neither produces optimal results on my machine (laptop with numlock disabled and belgian keyboard layout, e.g. KEY_1 => '&' unless shift is down) KEY_NUMERIC_0..KEY_NUMERIC_9 are not recognized by Linux console (don't know if/how userspace understands them) To disable the dummy ctrl/alt/meta keys the remote sends all the time as release events (and as press event around power and volume keys) I do return -1 in input_mapping() and 1 in event(), looking at what reaches listener on event device this seems to work. Possibly the whole event() callback is not even needed. If someone has a better idea for the mapping of some of the keys, please tell me, especially for the following keys I just took what did look like eventually matching: Recall -> KEY_RESTART Capture -> KEY_PRINT Record List -> KEY_LIST Preview -> KEY_PROGRAM Teletext -> KEY_TEXT Bruno ---
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 7831a03..d972c7d 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig@@ -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
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index db35151..9b9271d 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile@@ -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
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index f2c21d5..ed8766f 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c@@ -1312,6 +1312,7 @@ 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) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 6301010..a20fef8 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h@@ -403,6 +403,9 @@ #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
diff --git a/drivers/hid/hid-twinhan.c b/drivers/hid/hid-twinhan.c
new file mode 100644
index 0000000..6f00a67
--- /dev/null
+++ b/drivers/hid/hid-twinhan.c@@ -0,0 +1,170 @@ +/* + * 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_1 KEY_2 KEY_3 + * + * 4 5 6 + * KEY_4 KEY_5 KEY_6 + * + * 7 8 9 + * KEY_7 KEY_8 KEY_9 + * + * REC 0 Favorite + * KEY_RECORD KEY_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; + + // set_bit(EV_REP, hi->input->evbit); + switch (usage->hid & HID_USAGE) { + /* 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: + return -1; + + /* Map all keys from Twinhan Remote */ + case 0x01d: th_map_key_clear(KEY_SCREEN); break; + case 0x01e: th_map_key_clear(KEY_KP1); break; + case 0x01f: th_map_key_clear(KEY_KP2); break; + case 0x020: th_map_key_clear(KEY_KP3); break; + case 0x021: th_map_key_clear(KEY_KP4); break; + case 0x022: th_map_key_clear(KEY_KP5); break; + case 0x023: th_map_key_clear(KEY_KP6); break; + case 0x024: th_map_key_clear(KEY_KP7); break; + case 0x025: th_map_key_clear(KEY_KP8); break; + case 0x026: th_map_key_clear(KEY_KP9); break; + case 0x027: th_map_key_clear(KEY_KP0); break; + case 0x04a: th_map_key_clear(KEY_RECORD); break; + case 0x019: th_map_key_clear(KEY_FAVORITES); break; + case 0x00c: th_map_key_clear(KEY_REWIND); break; + case 0x011: th_map_key_clear(KEY_FORWARD); break; + case 0x04b: th_map_key_clear(KEY_CHANNELUP); break; + case 0x04e: th_map_key_clear(KEY_CHANNELDOWN); break; + case 0x028: th_map_key_clear(KEY_PLAY); break; + case 0x006: th_map_key_clear(KEY_RESTART); break; + case 0x04d: th_map_key_clear(KEY_STOP); break; + case 0x017: th_map_key_clear(KEY_PAUSE); break; + case 0x010: th_map_key_clear(KEY_MUTE); break; + case 0x029: th_map_key_clear(KEY_CANCEL); break; + case 0x013: th_map_key_clear(KEY_PRINT); break; + case 0x00e: th_map_key_clear(KEY_PROGRAM); break; + case 0x008: th_map_key_clear(KEY_EPG); break; + case 0x00f: th_map_key_clear(KEY_LIST); break; + case 0x02b: th_map_key_clear(KEY_TAB); break; + case 0x004: th_map_key_clear(KEY_TEXT); break; + /* Power = 0x0e0 + 0x0e1 + 0x0e2 + 0x03f */ + case 0x03f: th_map_key_clear(KEY_POWER2); 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; + default: + return 0; + } + return 1; +} + +static int twinhan_event(struct hid_device *hdev, struct hid_field *field, + struct hid_usage *usage, __s32 value) +{ + if ((usage->hid & HID_USAGE_PAGE) == HID_UP_KEYBOARD) + switch (usage->hid & HID_USAGE) { + case 0x0e0: + case 0x0e1: + case 0x0e2: + case 0x0e3: + case 0x0e4: + case 0x0e5: + case 0x0e6: + case 0x0e7: + return 1; + } + + return 0; +} + +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, + .event = twinhan_event, +}; + +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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