Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * HID driver for the apple ir device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Original driver written by James McKenzie
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Ported to recent 2.6 kernel versions by Greg Kroah-Hartman <gregkh@suse.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * Updated to support newer remotes by Bastien Nocera <hadess@hadess.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * Ported to HID subsystem by Benjamin Tissoires <benjamin.tissoires@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  * Copyright (C) 2006 James McKenzie
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  * Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  * Copyright (C) 2008 Novell Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  * Copyright (C) 2010, 2012 Bastien Nocera <hadess@hadess.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  * Copyright (C) 2013 Benjamin Tissoires <benjamin.tissoires@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  * Copyright (C) 2013 Red Hat Inc. All Rights Reserved
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/hid.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include "hid-ids.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) MODULE_AUTHOR("James McKenzie");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@redhat.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) MODULE_DESCRIPTION("HID Apple IR remote controls");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #define KEY_MASK		0x0F
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define TWO_PACKETS_MASK	0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32)  * James McKenzie has two devices both of which report the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33)  * 25 87 ee 83 0a	+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34)  * 25 87 ee 83 0c	-
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35)  * 25 87 ee 83 09	<<
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36)  * 25 87 ee 83 06	>>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37)  * 25 87 ee 83 05	>"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38)  * 25 87 ee 83 03	menu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39)  * 26 00 00 00 00	for key repeat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43)  * Thomas Glanzmann reports the following responses
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44)  * 25 87 ee ca 0b	+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45)  * 25 87 ee ca 0d	-
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46)  * 25 87 ee ca 08	<<
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47)  * 25 87 ee ca 07	>>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48)  * 25 87 ee ca 04	>"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49)  * 25 87 ee ca 02	menu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50)  * 26 00 00 00 00       for key repeat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52)  * He also observes the following event sometimes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53)  * sent after a key is release, which I interpret
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54)  * as a flat battery message
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55)  * 25 87 e0 ca 06	flat battery
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59)  * Alexandre Karpenko reports the following responses for Device ID 0x8242
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60)  * 25 87 ee 47 0b	+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61)  * 25 87 ee 47 0d	-
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62)  * 25 87 ee 47 08	<<
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63)  * 25 87 ee 47 07	>>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64)  * 25 87 ee 47 04	>"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65)  * 25 87 ee 47 02	menu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66)  * 26 87 ee 47 **	for key repeat (** is the code of the key being held)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70)  * Bastien Nocera's remote
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71)  * 25 87 ee 91 5f	followed by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72)  * 25 87 ee 91 05	gives you >"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74)  * 25 87 ee 91 5c	followed by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75)  * 25 87 ee 91 05	gives you the middle button
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79)  * Fabien Andre's remote
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80)  * 25 87 ee a3 5e	followed by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81)  * 25 87 ee a3 04	gives you >"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83)  * 25 87 ee a3 5d	followed by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84)  * 25 87 ee a3 04	gives you the middle button
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) static const unsigned short appleir_key_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	KEY_MENU,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	KEY_PLAYPAUSE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	KEY_FORWARD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	KEY_BACK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	KEY_VOLUMEUP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	KEY_VOLUMEDOWN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	KEY_ENTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	KEY_PLAYPAUSE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) struct appleir {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	struct input_dev *input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	struct hid_device *hid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	unsigned short keymap[ARRAY_SIZE(appleir_key_table)];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	struct timer_list key_up_timer;	/* timer for key up */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	spinlock_t lock;		/* protects .current_key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	int current_key;		/* the currently pressed key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	int prev_key_idx;		/* key index in a 2 packets message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static int get_key(int data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	 * The key is coded accross bits 2..9:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	 *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	 * 0x00 or 0x01 (        )	key:  0		-> KEY_RESERVED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	 * 0x02 or 0x03 (  menu  )	key:  1		-> KEY_MENU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	 * 0x04 or 0x05 (   >"   )	key:  2		-> KEY_PLAYPAUSE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	 * 0x06 or 0x07 (   >>   )	key:  3		-> KEY_FORWARD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	 * 0x08 or 0x09 (   <<   )	key:  4		-> KEY_BACK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	 * 0x0a or 0x0b (    +   )	key:  5		-> KEY_VOLUMEUP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	 * 0x0c or 0x0d (    -   )	key:  6		-> KEY_VOLUMEDOWN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	 * 0x0e or 0x0f (        )	key:  7		-> KEY_RESERVED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	 * 0x50 or 0x51 (        )	key:  8		-> KEY_RESERVED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	 * 0x52 or 0x53 (        )	key:  9		-> KEY_RESERVED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	 * 0x54 or 0x55 (        )	key: 10		-> KEY_RESERVED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	 * 0x56 or 0x57 (        )	key: 11		-> KEY_RESERVED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	 * 0x58 or 0x59 (        )	key: 12		-> KEY_RESERVED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	 * 0x5a or 0x5b (        )	key: 13		-> KEY_RESERVED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	 * 0x5c or 0x5d ( middle )	key: 14		-> KEY_ENTER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	 * 0x5e or 0x5f (   >"   )	key: 15		-> KEY_PLAYPAUSE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	 *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	 * Packets starting with 0x5 are part of a two-packets message,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	 * we notify the caller by sending a negative value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	int key = (data >> 1) & KEY_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	if ((data & TWO_PACKETS_MASK))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		/* Part of a 2 packets-command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		key = -key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	return key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) static void key_up(struct hid_device *hid, struct appleir *appleir, int key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	input_report_key(appleir->input_dev, key, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	input_sync(appleir->input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) static void key_down(struct hid_device *hid, struct appleir *appleir, int key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	input_report_key(appleir->input_dev, key, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	input_sync(appleir->input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) static void battery_flat(struct appleir *appleir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	dev_err(&appleir->input_dev->dev, "possible flat battery?\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) static void key_up_tick(struct timer_list *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	struct appleir *appleir = from_timer(appleir, t, key_up_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	struct hid_device *hid = appleir->hid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	spin_lock_irqsave(&appleir->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	if (appleir->current_key) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		key_up(hid, appleir, appleir->current_key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		appleir->current_key = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	spin_unlock_irqrestore(&appleir->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) static int appleir_raw_event(struct hid_device *hid, struct hid_report *report,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	 u8 *data, int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	struct appleir *appleir = hid_get_drvdata(hid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	static const u8 keydown[] = { 0x25, 0x87, 0xee };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	static const u8 keyrepeat[] = { 0x26, };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	static const u8 flatbattery[] = { 0x25, 0x87, 0xe0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	if (len != 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	if (!memcmp(data, keydown, sizeof(keydown))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		int index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 		spin_lock_irqsave(&appleir->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		 * If we already have a key down, take it up before marking
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		 * this one down
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		if (appleir->current_key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 			key_up(hid, appleir, appleir->current_key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		/* Handle dual packet commands */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 		if (appleir->prev_key_idx > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 			index = appleir->prev_key_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 			index = get_key(data[4]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 		if (index >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 			appleir->current_key = appleir->keymap[index];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 			key_down(hid, appleir, appleir->current_key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 			/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 			 * Remote doesn't do key up, either pull them up, in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 			 * the test above, or here set a timer which pulls
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 			 * them up after 1/8 s
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 			 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 			mod_timer(&appleir->key_up_timer, jiffies + HZ / 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 			appleir->prev_key_idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		} else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 			/* Remember key for next packet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 			appleir->prev_key_idx = -index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		spin_unlock_irqrestore(&appleir->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	appleir->prev_key_idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	if (!memcmp(data, keyrepeat, sizeof(keyrepeat))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 		key_down(hid, appleir, appleir->current_key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 		 * Remote doesn't do key up, either pull them up, in the test
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 		 * above, or here set a timer which pulls them up after 1/8 s
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		mod_timer(&appleir->key_up_timer, jiffies + HZ / 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	if (!memcmp(data, flatbattery, sizeof(flatbattery))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 		battery_flat(appleir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		/* Fall through */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	/* let hidraw and hiddev handle the report */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) static int appleir_input_configured(struct hid_device *hid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		struct hid_input *hidinput)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	struct input_dev *input_dev = hidinput->input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	struct appleir *appleir = hid_get_drvdata(hid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	appleir->input_dev = input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	input_dev->keycode = appleir->keymap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	input_dev->keycodesize = sizeof(unsigned short);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	input_dev->keycodemax = ARRAY_SIZE(appleir->keymap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	memcpy(appleir->keymap, appleir_key_table, sizeof(appleir->keymap));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	for (i = 0; i < ARRAY_SIZE(appleir_key_table); i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 		set_bit(appleir->keymap[i], input_dev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	clear_bit(KEY_RESERVED, input_dev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) static int appleir_input_mapping(struct hid_device *hid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		struct hid_input *hi, struct hid_field *field,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 		struct hid_usage *usage, unsigned long **bit, int *max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) static int appleir_probe(struct hid_device *hid, const struct hid_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	struct appleir *appleir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	appleir = devm_kzalloc(&hid->dev, sizeof(struct appleir), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	if (!appleir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	appleir->hid = hid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	/* force input as some remotes bypass the input registration */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	hid->quirks |= HID_QUIRK_HIDINPUT_FORCE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	spin_lock_init(&appleir->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	timer_setup(&appleir->key_up_timer, key_up_tick, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	hid_set_drvdata(hid, appleir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	ret = hid_parse(hid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 		hid_err(hid, "parse failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 		goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	ret = hid_hw_start(hid, HID_CONNECT_DEFAULT | HID_CONNECT_HIDDEV_FORCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 		hid_err(hid, "hw start failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 		goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 	devm_kfree(&hid->dev, appleir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) static void appleir_remove(struct hid_device *hid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	struct appleir *appleir = hid_get_drvdata(hid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	hid_hw_stop(hid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	del_timer_sync(&appleir->key_up_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) static const struct hid_device_id appleir_devices[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) MODULE_DEVICE_TABLE(hid, appleir_devices);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) static struct hid_driver appleir_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	.name = "appleir",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 	.id_table = appleir_devices,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	.raw_event = appleir_raw_event,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	.input_configured = appleir_input_configured,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	.probe = appleir_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	.remove = appleir_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	.input_mapping = appleir_input_mapping,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) module_hid_driver(appleir_driver);