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RetroArch/input/wiimote.h

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/*
* This file is part of iMAME4all.
*
* Copyright (C) 2010 David Valdeita (Seleuco)
*
* based on:
*
* wiiuse
*
* Written By:
* Michael Laforest < para >
* Email: < thepara (--AT--) g m a i l [--DOT--] com >
*
* Copyright 2006-2007
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* In addition, as a special exception, Seleuco
* gives permission to link the code of this program with
* the MAME library (or with modified versions of MAME that use the
* same license as MAME), and distribute linked combinations including
* the two. You must obey the GNU General Public License in all
* respects for all of the code used other than MAME. If you modify
* this file, you may extend this exception to your version of the
* file, but you are not obligated to do so. If you do not wish to
* do so, delete this exception statement from your version.
*/
#ifndef __WIIMOTE_H__
#define __WIIMOTE_H__
#if defined(__cplusplus)
extern "C" {
#endif
typedef unsigned char byte;
typedef char sbyte;
/* Convert to big endian */
#define BIG_ENDIAN_LONG(i) (htonl(i))
#define BIG_ENDIAN_SHORT(i) (htons(i))
#define absf(x) ((x >= 0) ? (x) : (x * -1.0f))
#define diff_f(x, y) ((x >= y) ? (absf(x - y)) : (absf(y - x)))
/* wiimote state flags*/
#define WIIMOTE_STATE_DEV_FOUND 0x0001
#define WIIMOTE_STATE_HANDSHAKE 0x0002 /* actual connection exists but no handshake yet */
#define WIIMOTE_STATE_HANDSHAKE_COMPLETE 0x0004
#define WIIMOTE_STATE_CONNECTED 0x0008
#define WIIMOTE_STATE_EXP 0x0040
/* Communication channels */
#define WM_SET_REPORT 0x50
/* commands */
#define WM_CMD_LED 0x11
#define WM_CMD_REPORT_TYPE 0x12
#define WM_CMD_RUMBLE 0x13
#define WM_CMD_IR 0x13
#define WM_CMD_CTRL_STATUS 0x15
#define WM_CMD_WRITE_DATA 0x16
#define WM_CMD_READ_DATA 0x17
#define WM_CMD_IR_2 0x1A
/* input report ids */
#define WM_RPT_CTRL_STATUS 0x20
#define WM_RPT_READ 0x21
#define WM_RPT_WRITE 0x22
#define WM_RPT_BTN 0x30
#define WM_RPT_BTN_ACC 0x31
#define WM_RPT_BTN_ACC_IR 0x33
#define WM_RPT_BTN_EXP 0x34
#define WM_RPT_BTN_ACC_EXP 0x35
#define WM_RPT_BTN_IR_EXP 0x36
#define WM_RPT_BTN_ACC_IR_EXP 0x37
#define WM_BT_INPUT 0x01
#define WM_BT_OUTPUT 0x02
/* controller status stuff */
#define WM_MAX_BATTERY_CODE 0xC8
#define EXP_ID_CODE_CLASSIC_CONTROLLER 0x9A1EFDFD
/* offsets in wiimote memory */
#define WM_MEM_OFFSET_CALIBRATION 0x16
#define WM_EXP_MEM_BASE 0x04A40000
#define WM_EXP_MEM_ENABLE 0x04A40040
#define WM_EXP_MEM_CALIBR 0x04A40020
#define EXP_HANDSHAKE_LEN 224
/* controller status flags for the first message byte */
/* bit 1 is unknown */
#define WM_CTRL_STATUS_BYTE1_ATTACHMENT 0x02
#define WM_CTRL_STATUS_BYTE1_SPEAKER_ENABLED 0x04
#define WM_CTRL_STATUS_BYTE1_IR_ENABLED 0x08
#define WM_CTRL_STATUS_BYTE1_LED_1 0x10
#define WM_CTRL_STATUS_BYTE1_LED_2 0x20
#define WM_CTRL_STATUS_BYTE1_LED_3 0x40
#define WM_CTRL_STATUS_BYTE1_LED_4 0x80
/* led bit masks */
#define WIIMOTE_LED_NONE 0x00
#define WIIMOTE_LED_1 0x10
#define WIIMOTE_LED_2 0x20
#define WIIMOTE_LED_3 0x40
#define WIIMOTE_LED_4 0x80
/* button masks */
#define WIIMOTE_BUTTON_ALL 0x1F9F
#define CLASSIC_CTRL_BUTTON_ALL 0xFEFF
/* expansion codes */
#define EXP_NONE 0
#define EXP_CLASSIC 2
typedef struct axis_t {
bool has_center;
byte min;
byte center;
byte max;
byte raw_value;
float value;
} axis_t;
typedef struct joystick_t {
axis_t x;
axis_t y;
} joystick_t;
typedef struct classic_ctrl_t {
short btns;
struct joystick_t ljs;
struct joystick_t rjs;
} classic_ctrl_t;
/**
* @struct expansion_t
* @brief Generic expansion device plugged into wiimote.
*/
typedef struct expansion_t {
int type; /**< type of expansion attached */
union {
struct classic_ctrl_t classic;
} cc;
} expansion_t;
/**
* @struct wiimote_t
* @brief Wiimote structure.
*/
typedef struct wiimote_t {
int unid; /**< user specified id */
struct apple_pad_connection* connection;
int state; /**< various state flags */
byte leds; /**< currently lit leds */
float battery_level; /**< battery level */
byte handshake_state; /**< the state of the connection handshake */
struct expansion_t exp; /**< wiimote expansion device */
unsigned short btns; /**< what buttons have just been pressed */
} wiimote;
/* macro to manage states */
#define WIIMOTE_IS_SET(wm, s) ((wm->state & (s)) == (s))
#define WIIMOTE_ENABLE_STATE(wm, s) (wm->state |= (s))
#define WIIMOTE_DISABLE_STATE(wm, s) (wm->state &= ~(s))
#define WIIMOTE_TOGGLE_STATE(wm, s) ((wm->state & (s)) ? WIIMOTE_DISABLE_STATE(wm, s) : WIIMOTE_ENABLE_STATE(wm, s))
#define WIIMOTE_IS_CONNECTED(wm) (WIIMOTE_IS_SET(wm, WIIMOTE_STATE_CONNECTED))
int wiimote_handshake(struct wiimote_t* wm, byte event, byte* data, unsigned short len);
void wiimote_status(struct wiimote_t* wm);
void wiimote_data_report(struct wiimote_t* wm, byte type);
void wiimote_pressed_buttons(struct wiimote_t* wm, byte* msg);
void wiimote_handle_expansion(struct wiimote_t* wm, byte* msg);
#if defined(__cplusplus)
}
#endif
#endif
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