a852d78e4e
Previously I had made the struct device point to the input device, but after talking with Dmitry, he said that the USB device would make more sense for this driver to point to. So converted it to use that instead. Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
172 lines
5.1 KiB
C
172 lines
5.1 KiB
C
/*
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* Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
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* Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
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*
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* USB/RS232 I-Force joysticks and wheels.
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Should you need to contact me, the author, you can do so either by
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* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
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* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/input.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/spinlock.h>
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#include <linux/usb.h>
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#include <linux/serio.h>
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#include <linux/circ_buf.h>
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#include <linux/mutex.h>
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/* This module provides arbitrary resource management routines.
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* I use it to manage the device's memory.
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* Despite the name of this module, I am *not* going to access the ioports.
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*/
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#include <linux/ioport.h>
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#define IFORCE_MAX_LENGTH 16
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/* iforce::bus */
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#define IFORCE_232 1
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#define IFORCE_USB 2
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#define IFORCE_EFFECTS_MAX 32
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/* Each force feedback effect is made of one core effect, which can be
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* associated to at most to effect modifiers
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*/
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#define FF_MOD1_IS_USED 0
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#define FF_MOD2_IS_USED 1
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#define FF_CORE_IS_USED 2
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#define FF_CORE_IS_PLAYED 3 /* Effect is currently being played */
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#define FF_CORE_SHOULD_PLAY 4 /* User wants the effect to be played */
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#define FF_CORE_UPDATE 5 /* Effect is being updated */
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#define FF_MODCORE_CNT 6
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struct iforce_core_effect {
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/* Information about where modifiers are stored in the device's memory */
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struct resource mod1_chunk;
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struct resource mod2_chunk;
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unsigned long flags[BITS_TO_LONGS(FF_MODCORE_CNT)];
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};
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#define FF_CMD_EFFECT 0x010e
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#define FF_CMD_ENVELOPE 0x0208
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#define FF_CMD_MAGNITUDE 0x0303
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#define FF_CMD_PERIOD 0x0407
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#define FF_CMD_CONDITION 0x050a
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#define FF_CMD_AUTOCENTER 0x4002
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#define FF_CMD_PLAY 0x4103
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#define FF_CMD_ENABLE 0x4201
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#define FF_CMD_GAIN 0x4301
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#define FF_CMD_QUERY 0xff01
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/* Buffer for async write */
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#define XMIT_SIZE 256
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#define XMIT_INC(var, n) (var)+=n; (var)&= XMIT_SIZE -1
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/* iforce::xmit_flags */
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#define IFORCE_XMIT_RUNNING 0
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#define IFORCE_XMIT_AGAIN 1
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struct iforce_device {
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u16 idvendor;
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u16 idproduct;
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char *name;
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signed short *btn;
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signed short *abs;
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signed short *ff;
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};
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struct iforce {
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struct input_dev *dev; /* Input device interface */
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struct iforce_device *type;
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int bus;
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unsigned char data[IFORCE_MAX_LENGTH];
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unsigned char edata[IFORCE_MAX_LENGTH];
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u16 ecmd;
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u16 expect_packet;
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#ifdef CONFIG_JOYSTICK_IFORCE_232
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struct serio *serio; /* RS232 transfer */
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int idx, pkt, len, id;
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unsigned char csum;
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#endif
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#ifdef CONFIG_JOYSTICK_IFORCE_USB
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struct usb_device *usbdev; /* USB transfer */
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struct usb_interface *intf;
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struct urb *irq, *out, *ctrl;
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struct usb_ctrlrequest cr;
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#endif
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spinlock_t xmit_lock;
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/* Buffer used for asynchronous sending of bytes to the device */
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struct circ_buf xmit;
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unsigned char xmit_data[XMIT_SIZE];
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unsigned long xmit_flags[1];
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/* Force Feedback */
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wait_queue_head_t wait;
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struct resource device_memory;
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struct iforce_core_effect core_effects[IFORCE_EFFECTS_MAX];
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struct mutex mem_mutex;
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};
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/* Get hi and low bytes of a 16-bits int */
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#define HI(a) ((unsigned char)((a) >> 8))
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#define LO(a) ((unsigned char)((a) & 0xff))
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/* For many parameters, it seems that 0x80 is a special value that should
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* be avoided. Instead, we replace this value by 0x7f
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*/
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#define HIFIX80(a) ((unsigned char)(((a)<0? (a)+255 : (a))>>8))
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/* Encode a time value */
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#define TIME_SCALE(a) (a)
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/* Public functions */
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/* iforce-serio.c */
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void iforce_serial_xmit(struct iforce *iforce);
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/* iforce-usb.c */
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void iforce_usb_xmit(struct iforce *iforce);
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/* iforce-main.c */
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int iforce_init_device(struct iforce *iforce);
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/* iforce-packets.c */
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int iforce_control_playback(struct iforce*, u16 id, unsigned int);
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void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data);
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int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data);
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void iforce_dump_packet(char *msg, u16 cmd, unsigned char *data) ;
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int iforce_get_id_packet(struct iforce *iforce, char *packet);
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/* iforce-ff.c */
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int iforce_upload_periodic(struct iforce *, struct ff_effect *, struct ff_effect *);
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int iforce_upload_constant(struct iforce *, struct ff_effect *, struct ff_effect *);
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int iforce_upload_condition(struct iforce *, struct ff_effect *, struct ff_effect *);
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/* Public variables */
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extern struct serio_driver iforce_serio_drv;
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extern struct usb_driver iforce_usb_driver;
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