[mirror_ubuntu-bionic-kernel.git] / drivers / macintosh / mac_hid.c

/*
 * drivers/macintosh/mac_hid.c
 *
 * HID support stuff for Macintosh computers.
 *
 * Copyright (C) 2000 Franz Sirl.
 *
 * This file will soon be removed in favor of an uinput userspace tool.
 */

#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/sysctl.h>
#include <linux/input.h>
#include <linux/module.h>


static struct input_dev *emumousebtn;
static int emumousebtn_input_register(void);
static int mouse_emulate_buttons = 0;
static int mouse_button2_keycode = KEY_RIGHTCTRL;	/* right control key */
static int mouse_button3_keycode = KEY_RIGHTALT;	/* right option key */
static int mouse_last_keycode = 0;

#if defined(CONFIG_SYSCTL)
/* file(s) in /proc/sys/dev/mac_hid */
ctl_table mac_hid_files[] = {
	{
		.ctl_name	= DEV_MAC_HID_MOUSE_BUTTON_EMULATION,
		.procname	= "mouse_button_emulation",
		.data		= &mouse_emulate_buttons,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= &proc_dointvec,
	},
	{
		.ctl_name	= DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE,
		.procname	= "mouse_button2_keycode",
		.data		= &mouse_button2_keycode,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= &proc_dointvec,
	},
	{
		.ctl_name	= DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE,
		.procname	= "mouse_button3_keycode",
		.data		= &mouse_button3_keycode,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= &proc_dointvec,
	},
	{ .ctl_name = 0 }
};

/* dir in /proc/sys/dev */
ctl_table mac_hid_dir[] = {
	{
		.ctl_name	= DEV_MAC_HID,
		.procname	= "mac_hid",
		.maxlen		= 0,
		.mode		= 0555,
		.child		= mac_hid_files,
	},
	{ .ctl_name = 0 }
};

/* /proc/sys/dev itself, in case that is not there yet */
ctl_table mac_hid_root_dir[] = {
	{
		.ctl_name	= CTL_DEV,
		.procname	= "dev",
		.maxlen		= 0,
		.mode		= 0555,
		.child		= mac_hid_dir,
	},
	{ .ctl_name = 0 }
};

static struct ctl_table_header *mac_hid_sysctl_header;

#endif /* endif CONFIG_SYSCTL */

int mac_hid_mouse_emulate_buttons(int caller, unsigned int keycode, int down)
{
	switch (caller) {
	case 1:
		/* Called from keyboard.c */
		if (mouse_emulate_buttons
		    && (keycode == mouse_button2_keycode
			|| keycode == mouse_button3_keycode)) {
			if (mouse_emulate_buttons == 1) {
				input_report_key(emumousebtn,
						 keycode == mouse_button2_keycode ? BTN_MIDDLE : BTN_RIGHT,
						 down);
				input_sync(emumousebtn);
				return 1;
			}
			mouse_last_keycode = down ? keycode : 0;
		}
		break;
	}
	return 0;
}

EXPORT_SYMBOL(mac_hid_mouse_emulate_buttons);

static int emumousebtn_input_register(void)
{
	emumousebtn = input_allocate_device();
	if (!emumousebtn)
		return -ENOMEM;

	emumousebtn->name = "Macintosh mouse button emulation";
	emumousebtn->id.bustype = BUS_ADB;
	emumousebtn->id.vendor = 0x0001;
	emumousebtn->id.product = 0x0001;
	emumousebtn->id.version = 0x0100;

	emumousebtn->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
	emumousebtn->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
	emumousebtn->relbit[0] = BIT(REL_X) | BIT(REL_Y);

	input_register_device(emumousebtn);

	return 0;
}

int __init mac_hid_init(void)
{
	int err;

	err = emumousebtn_input_register();
	if (err)
		return err;

#if defined(CONFIG_SYSCTL)
	mac_hid_sysctl_header = register_sysctl_table(mac_hid_root_dir, 1);
#endif /* CONFIG_SYSCTL */

	return 0;
}

device_initcall(mac_hid_init);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* drivers/macintosh/mac_hid.c
	3	*
	4	* HID support stuff for Macintosh computers.
	5	*
	6	* Copyright (C) 2000 Franz Sirl.
	7	*
	8	* This file will soon be removed in favor of an uinput userspace tool.
	9	*/
	10
1da177e4 LT	11	#include <linux/init.h>
	12	#include <linux/proc_fs.h>
	13	#include <linux/sysctl.h>
	14	#include <linux/input.h>
	15	#include <linux/module.h>
	16
	17
c7f7a569 DT	18	static struct input_dev *emumousebtn;
c7f7a569 DT	19	static int emumousebtn_input_register(void);
1da177e4 LT	20	static int mouse_emulate_buttons = 0;
	21	static int mouse_button2_keycode = KEY_RIGHTCTRL; /* right control key */
	22	static int mouse_button3_keycode = KEY_RIGHTALT; /* right option key */
	23	static int mouse_last_keycode = 0;
	24
	25	#if defined(CONFIG_SYSCTL)
	26	/* file(s) in /proc/sys/dev/mac_hid */
	27	ctl_table mac_hid_files[] = {
	28	{
	29	.ctl_name = DEV_MAC_HID_MOUSE_BUTTON_EMULATION,
	30	.procname = "mouse_button_emulation",
	31	.data = &mouse_emulate_buttons,
	32	.maxlen = sizeof(int),
	33	.mode = 0644,
	34	.proc_handler = &proc_dointvec,
	35	},
	36	{
	37	.ctl_name = DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE,
	38	.procname = "mouse_button2_keycode",
	39	.data = &mouse_button2_keycode,
	40	.maxlen = sizeof(int),
	41	.mode = 0644,
	42	.proc_handler = &proc_dointvec,
	43	},
	44	{
	45	.ctl_name = DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE,
	46	.procname = "mouse_button3_keycode",
	47	.data = &mouse_button3_keycode,
	48	.maxlen = sizeof(int),
	49	.mode = 0644,
	50	.proc_handler = &proc_dointvec,
	51	},
	52	{ .ctl_name = 0 }
	53	};
	54
	55	/* dir in /proc/sys/dev */
	56	ctl_table mac_hid_dir[] = {
	57	{
	58	.ctl_name = DEV_MAC_HID,
	59	.procname = "mac_hid",
	60	.maxlen = 0,
	61	.mode = 0555,
	62	.child = mac_hid_files,
	63	},
	64	{ .ctl_name = 0 }
	65	};
	66
	67	/* /proc/sys/dev itself, in case that is not there yet */
	68	ctl_table mac_hid_root_dir[] = {
	69	{
	70	.ctl_name = CTL_DEV,
	71	.procname = "dev",
	72	.maxlen = 0,
	73	.mode = 0555,
	74	.child = mac_hid_dir,
	75	},
	76	{ .ctl_name = 0 }
	77	};
	78
	79	static struct ctl_table_header *mac_hid_sysctl_header;
	80
	81	#endif /* endif CONFIG_SYSCTL */
	82
	83	int mac_hid_mouse_emulate_buttons(int caller, unsigned int keycode, int down)
84	{
85	switch (caller) {
86	case 1:
87	/* Called from keyboard.c */
88	if (mouse_emulate_buttons
89	&& (keycode == mouse_button2_keycode
90	\|\| keycode == mouse_button3_keycode)) {
91	if (mouse_emulate_buttons == 1) {
c7f7a569	92	input_report_key(emumousebtn,
1da177e4 LT	93	keycode == mouse_button2_keycode ? BTN_MIDDLE : BTN_RIGHT,
1da177e4 LT	94	down);
c7f7a569	95	input_sync(emumousebtn);
1da177e4 LT	96	return 1;
	97	}
	98	mouse_last_keycode = down ? keycode : 0;
	99	}
	100	break;
	101	}
	102	return 0;
	103	}
	104
	105	EXPORT_SYMBOL(mac_hid_mouse_emulate_buttons);
	106
c7f7a569	107	static int emumousebtn_input_register(void)
1da177e4	108	{
c7f7a569 DT	109	emumousebtn = input_allocate_device();
	110	if (!emumousebtn)
	111	return -ENOMEM;
1da177e4	112
c7f7a569 DT	113	emumousebtn->name = "Macintosh mouse button emulation";
	114	emumousebtn->id.bustype = BUS_ADB;
	115	emumousebtn->id.vendor = 0x0001;
	116	emumousebtn->id.product = 0x0001;
	117	emumousebtn->id.version = 0x0100;
1da177e4	118
c7f7a569 DT	119	emumousebtn->evbit[0] = BIT(EV_KEY) \| BIT(EV_REL);
	120	emumousebtn->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) \| BIT(BTN_MIDDLE) \| BIT(BTN_RIGHT);
	121	emumousebtn->relbit[0] = BIT(REL_X) \| BIT(REL_Y);
1da177e4	122
c7f7a569	123	input_register_device(emumousebtn);
1da177e4	124
c7f7a569	125	return 0;
1da177e4 LT	126	}
	127
	128	int __init mac_hid_init(void)
	129	{
c7f7a569	130	int err;
1da177e4	131
c7f7a569 DT	132	err = emumousebtn_input_register();
	133	if (err)
	134	return err;
1da177e4 LT	135
	136	#if defined(CONFIG_SYSCTL)
	137	mac_hid_sysctl_header = register_sysctl_table(mac_hid_root_dir, 1);
	138	#endif /* CONFIG_SYSCTL */
	139
	140	return 0;
	141	}
	142
	143	device_initcall(mac_hid_init);