78167236e2
Fix various issues pointed by sparse: - module_param_array_named() takes unsigned int as number of parameters argument - shadowing of global variables is not healthy. I think there was once a bug in db9 caused by it. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
175 lines
5.2 KiB
C
175 lines
5.2 KiB
C
/*
|
|
* $Id: iforce.h,v 1.13 2002/07/07 10:22:50 jdeneux Exp $
|
|
*
|
|
* Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
|
|
* Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
|
|
*
|
|
* USB/RS232 I-Force joysticks and wheels.
|
|
*/
|
|
|
|
/*
|
|
* 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/kernel.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/input.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/usb.h>
|
|
#include <linux/serio.h>
|
|
#include <linux/circ_buf.h>
|
|
#include <linux/mutex.h>
|
|
|
|
/* This module provides arbitrary resource management routines.
|
|
* I use it to manage the device's memory.
|
|
* Despite the name of this module, I am *not* going to access the ioports.
|
|
*/
|
|
#include <linux/ioport.h>
|
|
|
|
|
|
#define IFORCE_MAX_LENGTH 16
|
|
|
|
/* iforce::bus */
|
|
#define IFORCE_232 1
|
|
#define IFORCE_USB 2
|
|
|
|
#define IFORCE_EFFECTS_MAX 32
|
|
|
|
/* Each force feedback effect is made of one core effect, which can be
|
|
* associated to at most to effect modifiers
|
|
*/
|
|
#define FF_MOD1_IS_USED 0
|
|
#define FF_MOD2_IS_USED 1
|
|
#define FF_CORE_IS_USED 2
|
|
#define FF_CORE_IS_PLAYED 3 /* Effect is currently being played */
|
|
#define FF_CORE_SHOULD_PLAY 4 /* User wants the effect to be played */
|
|
#define FF_CORE_UPDATE 5 /* Effect is being updated */
|
|
#define FF_MODCORE_MAX 5
|
|
|
|
struct iforce_core_effect {
|
|
/* Information about where modifiers are stored in the device's memory */
|
|
struct resource mod1_chunk;
|
|
struct resource mod2_chunk;
|
|
unsigned long flags[NBITS(FF_MODCORE_MAX)];
|
|
};
|
|
|
|
#define FF_CMD_EFFECT 0x010e
|
|
#define FF_CMD_ENVELOPE 0x0208
|
|
#define FF_CMD_MAGNITUDE 0x0303
|
|
#define FF_CMD_PERIOD 0x0407
|
|
#define FF_CMD_CONDITION 0x050a
|
|
|
|
#define FF_CMD_AUTOCENTER 0x4002
|
|
#define FF_CMD_PLAY 0x4103
|
|
#define FF_CMD_ENABLE 0x4201
|
|
#define FF_CMD_GAIN 0x4301
|
|
|
|
#define FF_CMD_QUERY 0xff01
|
|
|
|
/* Buffer for async write */
|
|
#define XMIT_SIZE 256
|
|
#define XMIT_INC(var, n) (var)+=n; (var)&= XMIT_SIZE -1
|
|
/* iforce::xmit_flags */
|
|
#define IFORCE_XMIT_RUNNING 0
|
|
#define IFORCE_XMIT_AGAIN 1
|
|
|
|
struct iforce_device {
|
|
u16 idvendor;
|
|
u16 idproduct;
|
|
char *name;
|
|
signed short *btn;
|
|
signed short *abs;
|
|
signed short *ff;
|
|
};
|
|
|
|
struct iforce {
|
|
struct input_dev *dev; /* Input device interface */
|
|
struct iforce_device *type;
|
|
int bus;
|
|
|
|
unsigned char data[IFORCE_MAX_LENGTH];
|
|
unsigned char edata[IFORCE_MAX_LENGTH];
|
|
u16 ecmd;
|
|
u16 expect_packet;
|
|
|
|
#ifdef CONFIG_JOYSTICK_IFORCE_232
|
|
struct serio *serio; /* RS232 transfer */
|
|
int idx, pkt, len, id;
|
|
unsigned char csum;
|
|
#endif
|
|
#ifdef CONFIG_JOYSTICK_IFORCE_USB
|
|
struct usb_device *usbdev; /* USB transfer */
|
|
struct urb *irq, *out, *ctrl;
|
|
struct usb_ctrlrequest cr;
|
|
#endif
|
|
spinlock_t xmit_lock;
|
|
/* Buffer used for asynchronous sending of bytes to the device */
|
|
struct circ_buf xmit;
|
|
unsigned char xmit_data[XMIT_SIZE];
|
|
unsigned long xmit_flags[1];
|
|
|
|
/* Force Feedback */
|
|
wait_queue_head_t wait;
|
|
struct resource device_memory;
|
|
struct iforce_core_effect core_effects[IFORCE_EFFECTS_MAX];
|
|
struct mutex mem_mutex;
|
|
};
|
|
|
|
/* Get hi and low bytes of a 16-bits int */
|
|
#define HI(a) ((unsigned char)((a) >> 8))
|
|
#define LO(a) ((unsigned char)((a) & 0xff))
|
|
|
|
/* For many parameters, it seems that 0x80 is a special value that should
|
|
* be avoided. Instead, we replace this value by 0x7f
|
|
*/
|
|
#define HIFIX80(a) ((unsigned char)(((a)<0? (a)+255 : (a))>>8))
|
|
|
|
/* Encode a time value */
|
|
#define TIME_SCALE(a) (a)
|
|
|
|
|
|
/* Public functions */
|
|
/* iforce-serio.c */
|
|
void iforce_serial_xmit(struct iforce *iforce);
|
|
|
|
/* iforce-usb.c */
|
|
void iforce_usb_xmit(struct iforce *iforce);
|
|
void iforce_usb_delete(struct iforce *iforce);
|
|
|
|
/* iforce-main.c */
|
|
int iforce_init_device(struct iforce *iforce);
|
|
void iforce_delete_device(struct iforce *iforce);
|
|
|
|
/* iforce-packets.c */
|
|
int iforce_control_playback(struct iforce*, u16 id, unsigned int);
|
|
void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data);
|
|
int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data);
|
|
void iforce_dump_packet(char *msg, u16 cmd, unsigned char *data) ;
|
|
int iforce_get_id_packet(struct iforce *iforce, char *packet);
|
|
|
|
/* iforce-ff.c */
|
|
int iforce_upload_periodic(struct iforce *, struct ff_effect *, struct ff_effect *);
|
|
int iforce_upload_constant(struct iforce *, struct ff_effect *, struct ff_effect *);
|
|
int iforce_upload_condition(struct iforce *, struct ff_effect *, struct ff_effect *);
|
|
|
|
/* Public variables */
|
|
extern struct serio_driver iforce_serio_drv;
|
|
extern struct usb_driver iforce_usb_driver;
|