// SPDX-License-Identifier: GPL-2.0-only /* * HID driver for the apple ir device * * Original driver written by James McKenzie * Ported to recent 2.6 kernel versions by Greg Kroah-Hartman <gregkh@suse.de> * Updated to support newer remotes by Bastien Nocera <hadess@hadess.net> * Ported to HID subsystem by Benjamin Tissoires <benjamin.tissoires@gmail.com> * * Copyright (C) 2006 James McKenzie * Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com> * Copyright (C) 2008 Novell Inc. * Copyright (C) 2010, 2012 Bastien Nocera <hadess@hadess.net> * Copyright (C) 2013 Benjamin Tissoires <benjamin.tissoires@gmail.com> * Copyright (C) 2013 Red Hat Inc. All Rights Reserved
*/
/* * James McKenzie has two devices both of which report the following * 25 87 ee 83 0a + * 25 87 ee 83 0c - * 25 87 ee 83 09 << * 25 87 ee 83 06 >> * 25 87 ee 83 05 >" * 25 87 ee 83 03 menu * 26 00 00 00 00 for key repeat
*/
/* * Thomas Glanzmann reports the following responses * 25 87 ee ca 0b + * 25 87 ee ca 0d - * 25 87 ee ca 08 << * 25 87 ee ca 07 >> * 25 87 ee ca 04 >" * 25 87 ee ca 02 menu * 26 00 00 00 00 for key repeat * * He also observes the following event sometimes * sent after a key is release, which I interpret * as a flat battery message * 25 87 e0 ca 06 flat battery
*/
/* * Alexandre Karpenko reports the following responses for Device ID 0x8242 * 25 87 ee 47 0b + * 25 87 ee 47 0d - * 25 87 ee 47 08 << * 25 87 ee 47 07 >> * 25 87 ee 47 04 >" * 25 87 ee 47 02 menu * 26 87 ee 47 ** for key repeat (** is the code of the key being held)
*/
/* * Bastien Nocera's remote * 25 87 ee 91 5f followed by * 25 87 ee 91 05 gives you >" * * 25 87 ee 91 5c followed by * 25 87 ee 91 05 gives you the middle button
*/
/* * Fabien Andre's remote * 25 87 ee a3 5e followed by * 25 87 ee a3 04 gives you >" * * 25 87 ee a3 5d followed by * 25 87 ee a3 04 gives you the middle button
*/
if (len != 5 || !(hid->claimed & HID_CLAIMED_INPUT)) goto out;
if (!memcmp(data, keydown, sizeof(keydown))) { int index;
spin_lock_irqsave(&appleir->lock, flags); /* * If we already have a key down, take it up before marking * this one down
*/ if (appleir->current_key)
key_up(hid, appleir, appleir->current_key);
/* Handle dual packet commands */ if (appleir->prev_key_idx > 0)
index = appleir->prev_key_idx; else
index = get_key(data[4]);
if (index >= 0) {
appleir->current_key = appleir->keymap[index];
key_down(hid, appleir, appleir->current_key); /* * Remote doesn't do key up, either pull them up, in * the test above, or here set a timer which pulls * them up after 1/8 s
*/
mod_timer(&appleir->key_up_timer, jiffies + HZ / 8);
appleir->prev_key_idx = 0;
} else /* Remember key for next packet */
appleir->prev_key_idx = -index;
spin_unlock_irqrestore(&appleir->lock, flags); goto out;
}
appleir->prev_key_idx = 0;
if (!memcmp(data, keyrepeat, sizeof(keyrepeat))) {
key_down(hid, appleir, appleir->current_key); /* * Remote doesn't do key up, either pull them up, in the test * above, or here set a timer which pulls them up after 1/8 s
*/
mod_timer(&appleir->key_up_timer, jiffies + HZ / 8); goto out;
}
if (!memcmp(data, flatbattery, sizeof(flatbattery))) {
battery_flat(appleir); /* Fall through */
}
out: /* let hidraw and hiddev handle the report */ return 0;
}
memcpy(appleir->keymap, appleir_key_table, sizeof(appleir->keymap)); for (i = 0; i < ARRAY_SIZE(appleir_key_table); i++)
set_bit(appleir->keymap[i], input_dev->keybit);
clear_bit(KEY_RESERVED, input_dev->keybit);
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