--- /dev/null
+/*
+ * 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/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_CNT 6
+
+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[BITS_TO_LONGS(FF_MODCORE_CNT)];
+};
+
+#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 usb_interface *intf;
+ 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);
+
+/* iforce-main.c */
+int iforce_init_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;
Code Review / kvmfornfv.git / blobdiff