linux-imx

/*

 *  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 pr_fmt(fmt) KBUILD_MODNAME ": " fmt

​

#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

};