hid-input.c 32.6 KB
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/*
 * $Id: hid-input.c,v 1.2 2002/04/23 00:59:25 rdamazio Exp $
 *
 *  Copyright (c) 2000-2001 Vojtech Pavlik
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 *  Copyright (c) 2006-2007 Jiri Kosina
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 *
 *  HID to Linux Input mapping
 */

/*
 * 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, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Should you need to contact me, the author, you can do so either by
 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
 */

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/kernel.h>

#include <linux/hid.h>
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#include <linux/hid-debug.h>
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static int hid_apple_fnmode = 1;
module_param_named(pb_fnmode, hid_apple_fnmode, int, 0644);
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MODULE_PARM_DESC(pb_fnmode,
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		"Mode of fn key on Apple keyboards (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)");
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#define unk	KEY_UNKNOWN

static const unsigned char hid_keyboard[256] = {
	  0,  0,  0,  0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
	 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44,  2,  3,
	  4,  5,  6,  7,  8,  9, 10, 11, 28,  1, 14, 15, 57, 12, 13, 26,
	 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
	 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
	105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
	 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
	191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
	115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
	122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
	unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
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	unk,unk,unk,unk,unk,unk,179,180,unk,unk,unk,unk,unk,unk,unk,unk,
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	unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
	unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
	 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
	150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
};

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/* extended mapping for certain Logitech hardware (Logitech cordless desktop LX500) */
#define LOGITECH_EXPANDED_KEYMAP_SIZE 80
static int logitech_expanded_keymap[LOGITECH_EXPANDED_KEYMAP_SIZE] = {
	  0,216,  0,213,175,156,  0,  0,  0,  0,
	144,  0,  0,  0,  0,  0,  0,  0,  0,212,
	174,167,152,161,112,  0,  0,  0,154,  0,
	  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
	  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
	  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
	  0,  0,  0,  0,  0,183,184,185,186,187,
	188,189,190,191,192,193,194,  0,  0,  0
};

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static const struct {
	__s32 x;
	__s32 y;
}  hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};

#define map_abs(c)	do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; max = ABS_MAX; } while (0)
#define map_rel(c)	do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0)
#define map_key(c)	do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0)
#define map_led(c)	do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)

#define map_abs_clear(c)	do { map_abs(c); clear_bit(c, bit); } while (0)
#define map_key_clear(c)	do { map_key(c); clear_bit(c, bit); } while (0)

#ifdef CONFIG_USB_HIDINPUT_POWERBOOK

struct hidinput_key_translation {
	u16 from;
	u16 to;
	u8 flags;
};

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#define APPLE_FLAG_FKEY 0x01
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static struct hidinput_key_translation apple_fn_keys[] = {
	{ KEY_F1,       KEY_BRIGHTNESSDOWN,     APPLE_FLAG_FKEY },
	{ KEY_F2,       KEY_BRIGHTNESSUP,       APPLE_FLAG_FKEY },
	{ KEY_F3,       KEY_CYCLEWINDOWS,       APPLE_FLAG_FKEY }, /* Exposé */
	{ KEY_F4,       KEY_FN_F4,              APPLE_FLAG_FKEY }, /* Dashboard */
	{ KEY_F5,       KEY_FN_F5 },
	{ KEY_F6,       KEY_FN_F6 },
	{ KEY_F7,       KEY_BACK,               APPLE_FLAG_FKEY },
	{ KEY_F8,       KEY_PLAYPAUSE,          APPLE_FLAG_FKEY },
	{ KEY_F9,       KEY_FORWARD,            APPLE_FLAG_FKEY },
	{ KEY_F10,      KEY_MUTE,               APPLE_FLAG_FKEY },
	{ KEY_F11,      KEY_VOLUMEDOWN,         APPLE_FLAG_FKEY },
	{ KEY_F12,      KEY_VOLUMEUP,           APPLE_FLAG_FKEY },
	{ }
};

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static struct hidinput_key_translation powerbook_fn_keys[] = {
	{ KEY_BACKSPACE, KEY_DELETE },
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	{ KEY_F1,       KEY_BRIGHTNESSDOWN,     APPLE_FLAG_FKEY },
	{ KEY_F2,       KEY_BRIGHTNESSUP,       APPLE_FLAG_FKEY },
	{ KEY_F3,       KEY_MUTE,               APPLE_FLAG_FKEY },
	{ KEY_F4,       KEY_VOLUMEDOWN,         APPLE_FLAG_FKEY },
	{ KEY_F5,       KEY_VOLUMEUP,           APPLE_FLAG_FKEY },
	{ KEY_F6,       KEY_NUMLOCK,            APPLE_FLAG_FKEY },
	{ KEY_F7,       KEY_SWITCHVIDEOMODE,    APPLE_FLAG_FKEY },
	{ KEY_F8,       KEY_KBDILLUMTOGGLE,     APPLE_FLAG_FKEY },
	{ KEY_F9,       KEY_KBDILLUMDOWN,       APPLE_FLAG_FKEY },
	{ KEY_F10,      KEY_KBDILLUMUP,         APPLE_FLAG_FKEY },
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	{ KEY_UP,       KEY_PAGEUP },
	{ KEY_DOWN,     KEY_PAGEDOWN },
	{ KEY_LEFT,     KEY_HOME },
	{ KEY_RIGHT,    KEY_END },
	{ }
};

static struct hidinput_key_translation powerbook_numlock_keys[] = {
	{ KEY_J,        KEY_KP1 },
	{ KEY_K,        KEY_KP2 },
	{ KEY_L,        KEY_KP3 },
	{ KEY_U,        KEY_KP4 },
	{ KEY_I,        KEY_KP5 },
	{ KEY_O,        KEY_KP6 },
	{ KEY_7,        KEY_KP7 },
	{ KEY_8,        KEY_KP8 },
	{ KEY_9,        KEY_KP9 },
	{ KEY_M,        KEY_KP0 },
	{ KEY_DOT,      KEY_KPDOT },
	{ KEY_SLASH,    KEY_KPPLUS },
	{ KEY_SEMICOLON, KEY_KPMINUS },
	{ KEY_P,        KEY_KPASTERISK },
	{ KEY_MINUS,    KEY_KPEQUAL },
	{ KEY_0,        KEY_KPSLASH },
	{ KEY_F6,       KEY_NUMLOCK },
	{ KEY_KPENTER,  KEY_KPENTER },
	{ KEY_BACKSPACE, KEY_BACKSPACE },
	{ }
};

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static struct hidinput_key_translation apple_iso_keyboard[] = {
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	{ KEY_GRAVE,    KEY_102ND },
	{ KEY_102ND,    KEY_GRAVE },
	{ }
};

static struct hidinput_key_translation *find_translation(struct hidinput_key_translation *table, u16 from)
{
	struct hidinput_key_translation *trans;

	/* Look for the translation */
	for (trans = table; trans->from; trans++)
		if (trans->from == from)
			return trans;

	return NULL;
}

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int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
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		struct hid_usage *usage, __s32 value)
{
	struct hidinput_key_translation *trans;

	if (usage->code == KEY_FN) {
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		if (value) hid->quirks |=  HID_QUIRK_APPLE_FN_ON;
		else       hid->quirks &= ~HID_QUIRK_APPLE_FN_ON;
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		input_event(input, usage->type, usage->code, value);

		return 1;
	}

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	if (hid_apple_fnmode) {
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		int do_translate;

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		trans = find_translation((hid->product < 0x220 ||
					  hid->product >= 0x300) ?
					 powerbook_fn_keys : apple_fn_keys,
					 usage->code);
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		if (trans) {
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			if (test_bit(usage->code, hid->apple_pressed_fn))
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				do_translate = 1;
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			else if (trans->flags & APPLE_FLAG_FKEY)
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				do_translate =
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					(hid_apple_fnmode == 2 &&  (hid->quirks & HID_QUIRK_APPLE_FN_ON)) ||
					(hid_apple_fnmode == 1 && !(hid->quirks & HID_QUIRK_APPLE_FN_ON));
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			else
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				do_translate = (hid->quirks & HID_QUIRK_APPLE_FN_ON);
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			if (do_translate) {
				if (value)
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					set_bit(usage->code, hid->apple_pressed_fn);
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				else
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					clear_bit(usage->code, hid->apple_pressed_fn);
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				input_event(input, usage->type, trans->to, value);

				return 1;
			}
		}

		if (test_bit(usage->code, hid->pb_pressed_numlock) ||
				test_bit(LED_NUML, input->led)) {
			trans = find_translation(powerbook_numlock_keys, usage->code);

			if (trans) {
				if (value)
					set_bit(usage->code, hid->pb_pressed_numlock);
				else
					clear_bit(usage->code, hid->pb_pressed_numlock);

				input_event(input, usage->type, trans->to, value);
			}

			return 1;
		}
	}

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	if (hid->quirks & HID_QUIRK_APPLE_ISO_KEYBOARD) {
		trans = find_translation(apple_iso_keyboard, usage->code);
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		if (trans) {
			input_event(input, usage->type, trans->to, value);
			return 1;
		}
	}

	return 0;
}

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static void hidinput_apple_setup(struct input_dev *input)
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{
	struct hidinput_key_translation *trans;

	set_bit(KEY_NUMLOCK, input->keybit);

	/* Enable all needed keys */
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	for (trans = apple_fn_keys; trans->from; trans++)
		set_bit(trans->to, input->keybit);

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	for (trans = powerbook_fn_keys; trans->from; trans++)
		set_bit(trans->to, input->keybit);

	for (trans = powerbook_numlock_keys; trans->from; trans++)
		set_bit(trans->to, input->keybit);

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	for (trans = apple_iso_keyboard; trans->from; trans++)
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		set_bit(trans->to, input->keybit);

}
#else
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inline int hidinput_apple_event(struct hid_device *hid,
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				       struct input_dev *input,
				       struct hid_usage *usage, __s32 value)
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{
	return 0;
}

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static inline void hidinput_apple_setup(struct input_dev *input)
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{
}
#endif

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static inline int match_scancode(int code, int scancode)
{
	if (scancode == 0)
		return 1;
	return ((code & (HID_USAGE_PAGE | HID_USAGE)) == scancode);
}

static inline int match_keycode(int code, int keycode)
{
	if (keycode == 0)
		return 1;
	return (code == keycode);
}

static struct hid_usage *hidinput_find_key(struct hid_device *hid,
		int scancode, int keycode)
{
	int i, j, k;
	struct hid_report *report;
	struct hid_usage *usage;

	for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
		list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
			for (i = 0; i < report->maxfield; i++) {
				for ( j = 0; j < report->field[i]->maxusage; j++) {
					usage = report->field[i]->usage + j;
					if (usage->type == EV_KEY &&
						match_scancode(usage->hid, scancode) &&
						match_keycode(usage->code, keycode))
						return usage;
				}
			}
		}
	}
	return NULL;
}

static int hidinput_getkeycode(struct input_dev *dev, int scancode,
				int *keycode)
{
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	struct hid_device *hid = input_get_drvdata(dev);
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	struct hid_usage *usage;
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	usage = hidinput_find_key(hid, scancode, 0);
	if (usage) {
		*keycode = usage->code;
		return 0;
	}
	return -EINVAL;
}

static int hidinput_setkeycode(struct input_dev *dev, int scancode,
				int keycode)
{
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	struct hid_device *hid = input_get_drvdata(dev);
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	struct hid_usage *usage;
	int old_keycode;
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	if (keycode < 0 || keycode > KEY_MAX)
		return -EINVAL;
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	usage = hidinput_find_key(hid, scancode, 0);
	if (usage) {
		old_keycode = usage->code;
		usage->code = keycode;
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		clear_bit(old_keycode, dev->keybit);
		set_bit(usage->code, dev->keybit);
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		dbg_hid(KERN_DEBUG "Assigned keycode %d to HID usage code %x\n", keycode, scancode);
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		/* Set the keybit for the old keycode if the old keycode is used
		 * by another key */
		if (hidinput_find_key (hid, 0, old_keycode))
			set_bit(old_keycode, dev->keybit);
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		return 0;
	}
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	return -EINVAL;
}


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static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
				     struct hid_usage *usage)
{
	struct input_dev *input = hidinput->input;
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	struct hid_device *device = input_get_drvdata(input);
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	int max = 0, code, ret;
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	unsigned long *bit = NULL;

	field->hidinput = hidinput;

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	dbg_hid("Mapping: ");
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	hid_resolv_usage(usage->hid);
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	dbg_hid_line(" ---> ");
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	if (field->flags & HID_MAIN_ITEM_CONSTANT)
		goto ignore;

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	/* only LED usages are supported in output fields */
	if (field->report_type == HID_OUTPUT_REPORT &&
			(usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
		dbg_hid_line(" [non-LED output field] ");
		goto ignore;
	}

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	/* handle input mappings for quirky devices */
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	ret = hidinput_mapping_quirks(usage, input, &bit, &max);
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	if (ret)
		goto mapped;

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	switch (usage->hid & HID_USAGE_PAGE) {

		case HID_UP_UNDEFINED:
			goto ignore;

		case HID_UP_KEYBOARD:

			set_bit(EV_REP, input->evbit);

			if ((usage->hid & HID_USAGE) < 256) {
				if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
				map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
			} else
				map_key(KEY_UNKNOWN);

			break;

		case HID_UP_BUTTON:

			code = ((usage->hid - 1) & 0xf);

			switch (field->application) {
				case HID_GD_MOUSE:
				case HID_GD_POINTER:  code += 0x110; break;
				case HID_GD_JOYSTICK: code += 0x120; break;
				case HID_GD_GAMEPAD:  code += 0x130; break;
				default:
					switch (field->physical) {
						case HID_GD_MOUSE:
						case HID_GD_POINTER:  code += 0x110; break;
						case HID_GD_JOYSTICK: code += 0x120; break;
						case HID_GD_GAMEPAD:  code += 0x130; break;
						default:              code += 0x100;
					}
			}

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			/* Special handling for Logitech Cordless Desktop */
			if (field->application != HID_GD_MOUSE) {
				if (device->quirks & HID_QUIRK_LOGITECH_EXPANDED_KEYMAP) {
					int hid = usage->hid & HID_USAGE;
					if (hid < LOGITECH_EXPANDED_KEYMAP_SIZE && logitech_expanded_keymap[hid] != 0)
						code = logitech_expanded_keymap[hid];
				}
			} else {
				if (device->quirks & HID_QUIRK_LOGITECH_IGNORE_DOUBLED_WHEEL) {
					int hid = usage->hid & HID_USAGE;
					if (hid == 7 || hid == 8)
						goto ignore;
				}
			}

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			map_key(code);
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			break;


		case HID_UP_SIMULATION:

			switch (usage->hid & 0xffff) {
				case 0xba: map_abs(ABS_RUDDER);   break;
				case 0xbb: map_abs(ABS_THROTTLE); break;
				case 0xc4: map_abs(ABS_GAS);      break;
				case 0xc5: map_abs(ABS_BRAKE);    break;
				case 0xc8: map_abs(ABS_WHEEL);    break;
				default:   goto ignore;
			}
			break;

		case HID_UP_GENDESK:

			if ((usage->hid & 0xf0) == 0x80) {	/* SystemControl */
				switch (usage->hid & 0xf) {
					case 0x1: map_key_clear(KEY_POWER);  break;
					case 0x2: map_key_clear(KEY_SLEEP);  break;
					case 0x3: map_key_clear(KEY_WAKEUP); break;
					default: goto unknown;
				}
				break;
			}

			if ((usage->hid & 0xf0) == 0x90) {	/* D-pad */
				switch (usage->hid) {
					case HID_GD_UP:	   usage->hat_dir = 1; break;
					case HID_GD_DOWN:  usage->hat_dir = 5; break;
					case HID_GD_RIGHT: usage->hat_dir = 3; break;
					case HID_GD_LEFT:  usage->hat_dir = 7; break;
					default: goto unknown;
				}
				if (field->dpad) {
					map_abs(field->dpad);
					goto ignore;
				}
				map_abs(ABS_HAT0X);
				break;
			}

			switch (usage->hid) {

				/* These usage IDs map directly to the usage codes. */
				case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
				case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
				case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
					if (field->flags & HID_MAIN_ITEM_RELATIVE)
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						map_rel(usage->hid & 0xf);
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					else
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						map_abs(usage->hid & 0xf);
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					break;

				case HID_GD_HATSWITCH:
					usage->hat_min = field->logical_minimum;
					usage->hat_max = field->logical_maximum;
					map_abs(ABS_HAT0X);
					break;

				case HID_GD_START:	map_key_clear(BTN_START);	break;
				case HID_GD_SELECT:	map_key_clear(BTN_SELECT);	break;

				default: goto unknown;
			}

			break;

		case HID_UP_LED:
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			switch (usage->hid & 0xffff) {                        /* HID-Value:                   */
				case 0x01:  map_led (LED_NUML);     break;    /*   "Num Lock"                 */
				case 0x02:  map_led (LED_CAPSL);    break;    /*   "Caps Lock"                */
				case 0x03:  map_led (LED_SCROLLL);  break;    /*   "Scroll Lock"              */
				case 0x04:  map_led (LED_COMPOSE);  break;    /*   "Compose"                  */
				case 0x05:  map_led (LED_KANA);     break;    /*   "Kana"                     */
				case 0x27:  map_led (LED_SLEEP);    break;    /*   "Stand-By"                 */
				case 0x4c:  map_led (LED_SUSPEND);  break;    /*   "System Suspend"           */
				case 0x09:  map_led (LED_MUTE);     break;    /*   "Mute"                     */
				case 0x4b:  map_led (LED_MISC);     break;    /*   "Generic Indicator"        */
				case 0x19:  map_led (LED_MAIL);     break;    /*   "Message Waiting"          */
				case 0x4d:  map_led (LED_CHARGING); break;    /*   "External Power Connected" */

				default: goto ignore;
			}
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			break;

		case HID_UP_DIGITIZER:

			switch (usage->hid & 0xff) {

				case 0x30: /* TipPressure */
					if (!test_bit(BTN_TOUCH, input->keybit)) {
						device->quirks |= HID_QUIRK_NOTOUCH;
						set_bit(EV_KEY, input->evbit);
						set_bit(BTN_TOUCH, input->keybit);
					}

					map_abs_clear(ABS_PRESSURE);
					break;

				case 0x32: /* InRange */
					switch (field->physical & 0xff) {
						case 0x21: map_key(BTN_TOOL_MOUSE); break;
						case 0x22: map_key(BTN_TOOL_FINGER); break;
						default: map_key(BTN_TOOL_PEN); break;
					}
					break;

				case 0x3c: /* Invert */
					map_key_clear(BTN_TOOL_RUBBER);
					break;

				case 0x33: /* Touch */
				case 0x42: /* TipSwitch */
				case 0x43: /* TipSwitch2 */
					device->quirks &= ~HID_QUIRK_NOTOUCH;
					map_key_clear(BTN_TOUCH);
					break;

				case 0x44: /* BarrelSwitch */
					map_key_clear(BTN_STYLUS);
					break;

				default:  goto unknown;
			}
			break;

		case HID_UP_CONSUMER:	/* USB HUT v1.1, pages 56-62 */

			switch (usage->hid & HID_USAGE) {
				case 0x000: goto ignore;
				case 0x034: map_key_clear(KEY_SLEEP);		break;
				case 0x036: map_key_clear(BTN_MISC);		break;
576

577
				case 0x040: map_key_clear(KEY_MENU);		break;
578
				case 0x045: map_key_clear(KEY_RADIO);		break;
579

580
				case 0x083: map_key_clear(KEY_LAST);		break;
581 582
				case 0x088: map_key_clear(KEY_PC);		break;
				case 0x089: map_key_clear(KEY_TV);		break;
583
				case 0x08a: map_key_clear(KEY_WWW);		break;
584 585
				case 0x08b: map_key_clear(KEY_DVD);		break;
				case 0x08c: map_key_clear(KEY_PHONE);		break;
586
				case 0x08d: map_key_clear(KEY_PROGRAM);		break;
587 588 589 590 591 592 593
				case 0x08e: map_key_clear(KEY_VIDEOPHONE);	break;
				case 0x08f: map_key_clear(KEY_GAMES);		break;
				case 0x090: map_key_clear(KEY_MEMO);		break;
				case 0x091: map_key_clear(KEY_CD);		break;
				case 0x092: map_key_clear(KEY_VCR);		break;
				case 0x093: map_key_clear(KEY_TUNER);		break;
				case 0x094: map_key_clear(KEY_EXIT);		break;
594
				case 0x095: map_key_clear(KEY_HELP);		break;
595 596 597
				case 0x096: map_key_clear(KEY_TAPE);		break;
				case 0x097: map_key_clear(KEY_TV2);		break;
				case 0x098: map_key_clear(KEY_SAT);		break;
598
				case 0x09a: map_key_clear(KEY_PVR);		break;
599

600 601
				case 0x09c: map_key_clear(KEY_CHANNELUP);	break;
				case 0x09d: map_key_clear(KEY_CHANNELDOWN);	break;
602 603
				case 0x0a0: map_key_clear(KEY_VCR2);		break;

604 605 606 607 608 609 610 611 612
				case 0x0b0: map_key_clear(KEY_PLAY);		break;
				case 0x0b1: map_key_clear(KEY_PAUSE);		break;
				case 0x0b2: map_key_clear(KEY_RECORD);		break;
				case 0x0b3: map_key_clear(KEY_FASTFORWARD);	break;
				case 0x0b4: map_key_clear(KEY_REWIND);		break;
				case 0x0b5: map_key_clear(KEY_NEXTSONG);	break;
				case 0x0b6: map_key_clear(KEY_PREVIOUSSONG);	break;
				case 0x0b7: map_key_clear(KEY_STOPCD);		break;
				case 0x0b8: map_key_clear(KEY_EJECTCD);		break;
613

614 615 616 617 618 619
				case 0x0cd: map_key_clear(KEY_PLAYPAUSE);	break;
			        case 0x0e0: map_abs_clear(ABS_VOLUME);		break;
				case 0x0e2: map_key_clear(KEY_MUTE);		break;
				case 0x0e5: map_key_clear(KEY_BASSBOOST);	break;
				case 0x0e9: map_key_clear(KEY_VOLUMEUP);	break;
				case 0x0ea: map_key_clear(KEY_VOLUMEDOWN);	break;
620

621
				case 0x182: map_key_clear(KEY_BOOKMARKS);	break;
622
				case 0x183: map_key_clear(KEY_CONFIG);		break;
623 624 625 626 627 628
				case 0x184: map_key_clear(KEY_WORDPROCESSOR);	break;
				case 0x185: map_key_clear(KEY_EDITOR);		break;
				case 0x186: map_key_clear(KEY_SPREADSHEET);	break;
				case 0x187: map_key_clear(KEY_GRAPHICSEDITOR);	break;
				case 0x188: map_key_clear(KEY_PRESENTATION);	break;
				case 0x189: map_key_clear(KEY_DATABASE);	break;
629
				case 0x18a: map_key_clear(KEY_MAIL);		break;
630 631 632 633 634
				case 0x18b: map_key_clear(KEY_NEWS);		break;
				case 0x18c: map_key_clear(KEY_VOICEMAIL);	break;
				case 0x18d: map_key_clear(KEY_ADDRESSBOOK);	break;
				case 0x18e: map_key_clear(KEY_CALENDAR);	break;
				case 0x191: map_key_clear(KEY_FINANCE);		break;
635 636
				case 0x192: map_key_clear(KEY_CALC);		break;
				case 0x194: map_key_clear(KEY_FILE);		break;
637
				case 0x196: map_key_clear(KEY_WWW);		break;
638
				case 0x19c: map_key_clear(KEY_LOGOFF);		break;
639 640
				case 0x19e: map_key_clear(KEY_COFFEE);		break;
				case 0x1a6: map_key_clear(KEY_HELP);		break;
641
				case 0x1a7: map_key_clear(KEY_DOCUMENTS);	break;
642
				case 0x1ab: map_key_clear(KEY_SPELLCHECK);	break;
643 644
				case 0x1b6: map_key_clear(KEY_MEDIA);		break;
				case 0x1b7: map_key_clear(KEY_SOUND);		break;
645 646
				case 0x1bc: map_key_clear(KEY_MESSENGER);	break;
				case 0x1bd: map_key_clear(KEY_INFO);		break;
647
				case 0x201: map_key_clear(KEY_NEW);		break;
648 649 650
				case 0x202: map_key_clear(KEY_OPEN);		break;
				case 0x203: map_key_clear(KEY_CLOSE);		break;
				case 0x204: map_key_clear(KEY_EXIT);		break;
651 652 653 654 655 656 657
				case 0x207: map_key_clear(KEY_SAVE);		break;
				case 0x208: map_key_clear(KEY_PRINT);		break;
				case 0x209: map_key_clear(KEY_PROPS);		break;
				case 0x21a: map_key_clear(KEY_UNDO);		break;
				case 0x21b: map_key_clear(KEY_COPY);		break;
				case 0x21c: map_key_clear(KEY_CUT);		break;
				case 0x21d: map_key_clear(KEY_PASTE);		break;
658 659 660
				case 0x21f: map_key_clear(KEY_FIND);		break;
				case 0x221: map_key_clear(KEY_SEARCH);		break;
				case 0x222: map_key_clear(KEY_GOTO);		break;
661 662 663 664 665 666
				case 0x223: map_key_clear(KEY_HOMEPAGE);	break;
				case 0x224: map_key_clear(KEY_BACK);		break;
				case 0x225: map_key_clear(KEY_FORWARD);		break;
				case 0x226: map_key_clear(KEY_STOP);		break;
				case 0x227: map_key_clear(KEY_REFRESH);		break;
				case 0x22a: map_key_clear(KEY_BOOKMARKS);	break;
667 668 669
				case 0x22d: map_key_clear(KEY_ZOOMIN);		break;
				case 0x22e: map_key_clear(KEY_ZOOMOUT);		break;
				case 0x22f: map_key_clear(KEY_ZOOMRESET);	break;
670 671
				case 0x233: map_key_clear(KEY_SCROLLUP);	break;
				case 0x234: map_key_clear(KEY_SCROLLDOWN);	break;
672
				case 0x238: map_rel(REL_HWHEEL);		break;
673
				case 0x25f: map_key_clear(KEY_CANCEL);		break;
674
				case 0x279: map_key_clear(KEY_REDO);		break;
675

676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704
				case 0x289: map_key_clear(KEY_REPLY);		break;
				case 0x28b: map_key_clear(KEY_FORWARDMAIL);	break;
				case 0x28c: map_key_clear(KEY_SEND);		break;

				default:    goto ignore;
			}
			break;

		case HID_UP_HPVENDOR:	/* Reported on a Dutch layout HP5308 */

			set_bit(EV_REP, input->evbit);
			switch (usage->hid & HID_USAGE) {
			        case 0x021: map_key_clear(KEY_PRINT);           break;
				case 0x070: map_key_clear(KEY_HP);		break;
				case 0x071: map_key_clear(KEY_CAMERA);		break;
				case 0x072: map_key_clear(KEY_SOUND);		break;
				case 0x073: map_key_clear(KEY_QUESTION);	break;
				case 0x080: map_key_clear(KEY_EMAIL);		break;
				case 0x081: map_key_clear(KEY_CHAT);		break;
				case 0x082: map_key_clear(KEY_SEARCH);		break;
				case 0x083: map_key_clear(KEY_CONNECT);	        break;
				case 0x084: map_key_clear(KEY_FINANCE);		break;
				case 0x085: map_key_clear(KEY_SPORT);		break;
				case 0x086: map_key_clear(KEY_SHOP);	        break;
				default:    goto ignore;
			}
			break;

		case HID_UP_MSVENDOR:
705

706
			goto ignore;
707

708
		case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
709 710 711 712

			set_bit(EV_REP, input->evbit);
			switch(usage->hid & HID_USAGE) {
				case 0x003:
713
					/* The fn key on Apple USB keyboards */
714
					map_key_clear(KEY_FN);
715
					hidinput_apple_setup(input);
716 717 718 719 720 721
					break;

				default:    goto ignore;
			}
			break;

722
		case HID_UP_LOGIVENDOR:
723

724 725
			goto ignore;
		
726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751
		case HID_UP_PID:

			switch(usage->hid & HID_USAGE) {
				case 0xa4: map_key_clear(BTN_DEAD);	break;
				default: goto ignore;
			}
			break;

		default:
		unknown:
			if (field->report_size == 1) {
				if (field->report->type == HID_OUTPUT_REPORT) {
					map_led(LED_MISC);
					break;
				}
				map_key(BTN_MISC);
				break;
			}
			if (field->flags & HID_MAIN_ITEM_RELATIVE) {
				map_rel(REL_MISC);
				break;
			}
			map_abs(ABS_MISC);
			break;
	}

752
mapped:
753 754 755 756 757 758 759 760 761
	if (device->quirks & HID_QUIRK_MIGHTYMOUSE) {
		if (usage->hid == HID_GD_Z)
			map_rel(REL_HWHEEL);
		else if (usage->code == BTN_1)
			map_key(BTN_2);
		else if (usage->code == BTN_2)
			map_key(BTN_1);
	}

762 763 764 765
	if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5 |
			HID_QUIRK_2WHEEL_MOUSE_HACK_B8)) && (usage->type == EV_REL) &&
			(usage->code == REL_WHEEL))
		set_bit(REL_HWHEEL, bit);
766 767 768 769 770 771 772 773 774 775 776

	if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
		|| ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
		goto ignore;

	if ((device->quirks & HID_QUIRK_BAD_RELATIVE_KEYS) &&
		usage->type == EV_KEY && (field->flags & HID_MAIN_ITEM_RELATIVE))
		field->flags &= ~HID_MAIN_ITEM_RELATIVE;

	set_bit(usage->type, input->evbit);

777 778 779 780 781 782
	if (device->quirks & HID_QUIRK_DUPLICATE_USAGES &&
			(usage->type == EV_KEY ||
			 usage->type == EV_REL ||
			 usage->type == EV_ABS))
		clear_bit(usage->code, bit);

783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816
	while (usage->code <= max && test_and_set_bit(usage->code, bit))
		usage->code = find_next_zero_bit(bit, max + 1, usage->code);

	if (usage->code > max)
		goto ignore;


	if (usage->type == EV_ABS) {

		int a = field->logical_minimum;
		int b = field->logical_maximum;

		if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
			a = field->logical_minimum = 0;
			b = field->logical_maximum = 255;
		}

		if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
			input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
		else	input_set_abs_params(input, usage->code, a, b, 0, 0);

	}

	if (usage->type == EV_ABS &&
	    (usage->hat_min < usage->hat_max || usage->hat_dir)) {
		int i;
		for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
			input_set_abs_params(input, i, -1, 1, 0, 0);
			set_bit(i, input->absbit);
		}
		if (usage->hat_dir && !field->dpad)
			field->dpad = usage->code;
	}

817 818 819 820 821 822 823 824 825 826
	/* for those devices which produce Consumer volume usage as relative,
	 * we emulate pressing volumeup/volumedown appropriate number of times
	 * in hidinput_hid_event()
	 */
	if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
			(usage->code == ABS_VOLUME)) {
		set_bit(KEY_VOLUMEUP, input->keybit);
		set_bit(KEY_VOLUMEDOWN, input->keybit);
	}

827 828 829 830 831
	if (usage->type == EV_KEY) {
		set_bit(EV_MSC, input->evbit);
		set_bit(MSC_SCAN, input->mscbit);
	}

832
	hid_resolv_event(usage->type, usage->code);
833 834 835

	dbg_hid_line("\n");

836 837 838
	return;

ignore:
839
	dbg_hid_line("IGNORED\n");
840 841 842 843 844 845
	return;
}

void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
{
	struct input_dev *input;
A
Al Viro 已提交
846
	unsigned *quirks = &hid->quirks;
847 848 849 850 851 852 853 854 855

	if (!field->hidinput)
		return;

	input = field->hidinput->input;

	if (!usage->type)
		return;

856
	/* handle input events for quirky devices */
857 858
	if (hidinput_event_quirks(hid, field, usage, value))
		return;
859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891

	if (usage->hat_min < usage->hat_max || usage->hat_dir) {
		int hat_dir = usage->hat_dir;
		if (!hat_dir)
			hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
		if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
		input_event(input, usage->type, usage->code    , hid_hat_to_axis[hat_dir].x);
                input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
                return;
        }

	if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
		*quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
		return;
	}

	if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
		if (value) {
			input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
			return;
		}
		input_event(input, usage->type, usage->code, 0);
		input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
		return;
	}

	if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
		int a = field->logical_minimum;
		int b = field->logical_maximum;
		input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
	}

	if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
892
		dbg_hid("Maximum Effects - %d\n",value);
893 894 895 896
		return;
	}

	if (usage->hid == (HID_UP_PID | 0x7fUL)) {
897
		dbg_hid("PID Pool Report\n");
898 899 900 901 902 903
		return;
	}

	if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
		return;

904 905 906 907 908 909 910 911 912 913 914 915 916 917 918
	if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
			(usage->code == ABS_VOLUME)) {
		int count = abs(value);
		int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
		int i;

		for (i = 0; i < count; i++) {
			input_event(input, EV_KEY, direction, 1);
			input_sync(input);
			input_event(input, EV_KEY, direction, 0);
			input_sync(input);
		}
		return;
	}

919 920 921
	/* report the usage code as scancode if the key status has changed */
	if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
		input_event(input, EV_MSC, MSC_SCAN, usage->hid);
922

923 924 925 926 927 928 929 930 931 932 933 934 935
	input_event(input, usage->type, usage->code, value);

	if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
		input_event(input, usage->type, usage->code, 0);
}

void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
{
	struct hid_input *hidinput;

	list_for_each_entry(hidinput, &hid->inputs, list)
		input_sync(hidinput->input);
}
J
Jiri Kosina 已提交
936
EXPORT_SYMBOL_GPL(hidinput_report_event);
937

J
Jiri Kosina 已提交
938
int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
939 940 941 942 943 944 945 946 947 948 949 950 951 952
{
	struct hid_report *report;
	int i, j;

	list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
		for (i = 0; i < report->maxfield; i++) {
			*field = report->field[i];
			for (j = 0; j < (*field)->maxusage; j++)
				if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
					return j;
		}
	}
	return -1;
}
J
Jiri Kosina 已提交
953
EXPORT_SYMBOL_GPL(hidinput_find_field);
954

955 956
static int hidinput_open(struct input_dev *dev)
{
957 958
	struct hid_device *hid = input_get_drvdata(dev);

959 960 961 962 963
	return hid->hid_open(hid);
}

static void hidinput_close(struct input_dev *dev)
{
964 965
	struct hid_device *hid = input_get_drvdata(dev);

966 967 968
	hid->hid_close(hid);
}

969 970 971 972 973 974 975 976 977 978 979 980
/*
 * Register the input device; print a message.
 * Configure the input layer interface
 * Read all reports and initialize the absolute field values.
 */

int hidinput_connect(struct hid_device *hid)
{
	struct hid_report *report;
	struct hid_input *hidinput = NULL;
	struct input_dev *input_dev;
	int i, j, k;
981
	int max_report_type = HID_OUTPUT_REPORT;
982

983 984 985
	if (hid->quirks & HID_QUIRK_IGNORE_HIDINPUT)
		return -1;

986 987 988 989 990 991 992 993
	INIT_LIST_HEAD(&hid->inputs);

	for (i = 0; i < hid->maxcollection; i++)
		if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
		    hid->collection[i].type == HID_COLLECTION_PHYSICAL)
			if (IS_INPUT_APPLICATION(hid->collection[i].usage))
				break;

994
	if (i == hid->maxcollection && (hid->quirks & HID_QUIRK_HIDINPUT) == 0)
995 996
		return -1;

997 998 999 1000
	if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
		max_report_type = HID_INPUT_REPORT;

	for (k = HID_INPUT_REPORT; k <= max_report_type; k++)
1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011
		list_for_each_entry(report, &hid->report_enum[k].report_list, list) {

			if (!report->maxfield)
				continue;

			if (!hidinput) {
				hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
				input_dev = input_allocate_device();
				if (!hidinput || !input_dev) {
					kfree(hidinput);
					input_free_device(input_dev);
1012
					err_hid("Out of memory during hid input probe");
1013
					goto out_unwind;
1014 1015
				}

1016
				input_set_drvdata(input_dev, hid);
J
Jiri Kosina 已提交
1017
				input_dev->event = hid->hidinput_input_event;
1018 1019
				input_dev->open = hidinput_open;
				input_dev->close = hidinput_close;
1020 1021
				input_dev->setkeycode = hidinput_setkeycode;
				input_dev->getkeycode = hidinput_getkeycode;
1022 1023 1024 1025

				input_dev->name = hid->name;
				input_dev->phys = hid->phys;
				input_dev->uniq = hid->uniq;
J
Jiri Kosina 已提交
1026 1027 1028 1029
				input_dev->id.bustype = hid->bus;
				input_dev->id.vendor  = hid->vendor;
				input_dev->id.product = hid->product;
				input_dev->id.version = hid->version;
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				input_dev->dev.parent = hid->dev;
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				hidinput->input = input_dev;
				list_add_tail(&hidinput->list, &hid->inputs);
			}

			for (i = 0; i < report->maxfield; i++)
				for (j = 0; j < report->field[i]->maxusage; j++)
					hidinput_configure_usage(hidinput, report->field[i],
								 report->field[i]->usage + j);

			if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
				/* This will leave hidinput NULL, so that it
				 * allocates another one if we have more inputs on
				 * the same interface. Some devices (e.g. Happ's
				 * UGCI) cram a lot of unrelated inputs into the
				 * same interface. */
				hidinput->report = report;
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				if (input_register_device(hidinput->input))
					goto out_cleanup;
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				hidinput = NULL;
			}
		}

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	if (hidinput && input_register_device(hidinput->input))
		goto out_cleanup;
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	return 0;
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out_cleanup:
	input_free_device(hidinput->input);
	kfree(hidinput);
out_unwind:
	/* unwind the ones we already registered */
	hidinput_disconnect(hid);

	return -1;
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}
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EXPORT_SYMBOL_GPL(hidinput_connect);
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void hidinput_disconnect(struct hid_device *hid)
{
	struct hid_input *hidinput, *next;

	list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
		list_del(&hidinput->list);
		input_unregister_device(hidinput->input);
		kfree(hidinput);
	}
}
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Jiri Kosina 已提交
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EXPORT_SYMBOL_GPL(hidinput_disconnect);