path: root/drivers/hid/usbhid/hid-pidff.c

/*
 *  Force feedback driver for USB HID PID compliant devices
 *
 *  Copyright (c) 2005, 2006 Anssi Hannula <anssi.hannula@gmail.com>
 */

/*
 * 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
 */

/* #define DEBUG */

#define debug(format, arg...) pr_debug("hid-pidff: " format "\n" , ## arg)

#include <linux/input.h>
#include <linux/slab.h>
#include <linux/usb.h>

#include <linux/hid.h>

#include "usbhid.h"

#define	PID_EFFECTS_MAX		64

/* Report usage table used to put reports into an array */

#define PID_SET_EFFECT		0
#define PID_EFFECT_OPERATION	1
#define PID_DEVICE_GAIN		2
#define PID_POOL		3
#define PID_BLOCK_LOAD		4
#define PID_BLOCK_FREE		5
#define PID_DEVICE_CONTROL	6
#define PID_CREATE_NEW_EFFECT	7

#define PID_REQUIRED_REPORTS	7

#define PID_SET_ENVELOPE	8
#define PID_SET_CONDITION	9
#define PID_SET_PERIODIC	10
#define PID_SET_CONSTANT	11
#define PID_SET_RAMP		12
static const u8 pidff_reports[] = {
	0x21, 0x77, 0x7d, 0x7f, 0x89, 0x90, 0x96, 0xab,
	0x5a, 0x5f, 0x6e, 0x73, 0x74
};

/* device_control is really 0x95, but 0x96 specified as it is the usage of
the only field in that report */

/* Value usage tables used to put fields and values into arrays */

#define PID_EFFECT_BLOCK_INDEX	0

#define PID_DURATION		1
#define PID_GAIN		2
#define PID_TRIGGER_BUTTON	3
#define PID_TRIGGER_REPEAT_INT	4
#define PID_DIRECTION_ENABLE	5
#define PID_START_DELAY		6
static const u8 pidff_set_effect[] = {
	0x22, 0x50, 0x52, 0x53, 0x54, 0x56, 0xa7
};

#define PID_ATTACK_LEVEL	1
#define PID_ATTACK_TIME		2
#define PID_FADE_LEVEL		3
#define PID_FADE_TIME		4
static const u8 pidff_set_envelope[] = { 0x22, 0x5b, 0x5c, 0x5d, 0x5e };

#define PID_PARAM_BLOCK_OFFSET	1
#define PID_CP_OFFSET		2
#define PID_POS_COEFFICIENT	3
#define PID_NEG_COEFFICIENT	4
#define PID_POS_SATURATION	5
#define PID_NEG_SATURATION	6
#define PID_DEAD_BAND		7
static const u8 pidff_set_condition[] = {
	0x22, 0x23, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65
};

#define PID_MAGNITUDE		1
#define PID_OFFSET		2
#define PID_PHASE		3
#define PID_PERIOD		4
static const u8 pidff_set_periodic[] = { 0x22, 0x70, 0x6f, 0x71, 0x72 };
static const u8 pidff_set_constant[] = { 0x22, 0x70 };

#define PID_RAMP_START		1
#define PID_RAMP_END		2
static const u8 pidff_set_ramp[] = { 0x22, 0x75, 0x76 };

#define PID_RAM_POOL_AVAILABLE	1
static const u8 pidff_block_load[] = { 0x22, 0xac };

#define PID_LOOP_COUNT		1
static const u8 pidff_e