patch-2.4.0-test2 linux/drivers/char/joystick/tmdc.c

• Lines: 349
• Date: Wed Jun 21 08:22:21 2000
• Orig file: v2.4.0-test1/linux/drivers/char/joystick/tmdc.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.0-test1/linux/drivers/char/joystick/tmdc.c linux/drivers/char/joystick/tmdc.c
@@ -0,0 +1,348 @@
+/*
+ * $Id: tmdc.c,v 1.18 2000/06/08 19:59:59 vojtech Exp $
+ *
+ *  Copyright (c) 1998-2000 Vojtech Pavlik
+ *
+ *  Sponsored by SuSE
+ *
+ *   Based on the work of:
+ *	Trystan Larey-Williams 
+ *
+ */
+
+/*
+ * ThrustMaster DirectConnect (BSP) joystick family driver for Linux
+ */
+
+/*
+ * 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@suse.cz>, or by paper mail:
+ * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/malloc.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+
+#define TMDC_MAX_START		400	/* 400 us */
+#define TMDC_MAX_STROBE		45	/* 45 us */
+#define TMDC_MAX_LENGTH		13
+#define TMDC_REFRESH_TIME	HZ/50	/* 20 ms */
+
+#define TMDC_MODE_M3DI		1
+#define TMDC_MODE_3DRP		3
+#define TMDC_MODE_FGP		163
+
+#define TMDC_BYTE_ID		10
+#define TMDC_BYTE_REV		11
+#define TMDC_BYTE_DEF		12
+
+#define TMDC_ABS		7	
+#define TMDC_ABS_HAT		4
+#define TMDC_BTN_PAD		10
+#define TMDC_BTN_JOY		16
+
+static unsigned char tmdc_byte_a[16] = { 0, 1, 3, 4, 6, 7 };
+static unsigned char tmdc_byte_d[16] = { 2, 5, 8, 9 };
+
+static unsigned char tmdc_abs[TMDC_ABS] =
+	{ ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE, ABS_RX, ABS_RY, ABS_RZ };
+static unsigned char tmdc_abs_hat[TMDC_ABS_HAT] =
+	{ ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
+static unsigned short tmdc_btn_pad[TMDC_BTN_PAD] =
+	{ BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_START, BTN_SELECT, BTN_TL, BTN_TR };
+static unsigned short tmdc_btn_joy[TMDC_BTN_JOY] =
+	{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_THUMB2, BTN_PINKIE,
+ 	  BTN_BASE3, BTN_BASE4, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z };
+
+struct tmdc {
+	struct gameport *gameport;
+	struct timer_list timer;
+	struct input_dev dev[2];
+	char name[2][64];
+	int mode[2];
+	int used;
+	int reads;
+	int bads;	
+	unsigned char exists;
+};
+
+/*
+ * tmdc_read_packet() reads a ThrustMaster packet.
+ */
+
+static int tmdc_read_packet(struct gameport *gameport, unsigned char data[2][TMDC_MAX_LENGTH])
+{
+	unsigned char u, v, w, x;
+	unsigned long flags;
+	int i[2], j[2], t[2], p, k;
+
+	p = gameport_time(gameport, TMDC_MAX_STROBE);
+
+	for (k = 0; k < 2; k++) {
+		t[k] = gameport_time(gameport, TMDC_MAX_START);
+		i[k] = j[k] = 0;
+	}
+
+	__save_flags(flags);
+	__cli();
+	gameport_trigger(gameport);
+	
+	w = gameport_read(gameport) >> 4;
+
+	do {
+		x = w;
+		w = gameport_read(gameport) >> 4;
+
+		for (k = 0, v = w, u = x; k < 2; k++, v >>= 2, u >>= 2) {
+			if (~v & u & 2) {
+				if (t[k] <= 0 || i[k] >= TMDC_MAX_LENGTH) continue;
+				t[k] = p;
+				if (j[k] == 0) {				 /* Start bit */
+					if (~v & 1) t[k] = 0;
+					data[k][i[k]] = 0; j[k]++; continue;
+				}
+				if (j[k] == 9) {				/* Stop bit */
+					if (v & 1) t[k] = 0;
+					j[k] = 0; i[k]++; continue;
+				}
+				data[k][i[k]] |= (~v & 1) << (j[k]++ - 1);	/* Data bit */
+			}
+			t[k]--; 
+		}
+	} while (t[0] > 0 || t[1] > 0);
+
+	__restore_flags(flags);
+
+	return (i[0] == TMDC_MAX_LENGTH) | ((i[1] == TMDC_MAX_LENGTH) << 1);
+}
+
+/*
+ * tmdc_read() reads and analyzes ThrustMaster joystick data.
+ */
+
+static void tmdc_timer(unsigned long private)
+{
+	unsigned char data[2][TMDC_MAX_LENGTH];
+	struct tmdc *tmdc = (void *) private;
+	struct input_dev *dev;
+	unsigned char r, bad = 0;
+	int i, j;
+
+	tmdc->reads++;
+
+	if ((r = tmdc_read_packet(tmdc->gameport, data)) != tmdc->exists)
+		bad = 1;
+
+	for (j = 0; j < 2; j++) 
+		if (r & (1 << j) & tmdc->exists) {
+
+			if (data[j][TMDC_BYTE_ID] != tmdc->mode[j]) {
+				bad = 1;
+				continue;
+			}
+
+			dev = tmdc->dev + j;
+
+			for (i = 0; i < data[j][TMDC_BYTE_DEF] >> 4; i++)
+				input_report_abs(dev, tmdc_abs[i], data[j][tmdc_byte_a[i]]);
+
+			switch (tmdc->mode[j]) {
+
+				case TMDC_MODE_M3DI:
+
+					i = tmdc_byte_d[0];
+
+					input_report_abs(dev, ABS_HAT0X, ((data[j][i] >> 3) & 1) - ((data[j][i] >> 1) & 1));
+					input_report_abs(dev, ABS_HAT0Y, ((data[j][i] >> 2) & 1) - ( data[j][i]       & 1));
+
+					for (i = 0; i < 4; i++)
+						input_report_key(dev, tmdc_btn_joy[i],
+							(data[j][tmdc_byte_d[0]] >> (i + 4)) & 1);
+					for (i = 0; i < 2; i++)
+						input_report_key(dev, tmdc_btn_joy[i + 4],
+							(data[j][tmdc_byte_d[1]] >> (i + 6)) & 1);
+
+					break;
+
+				case TMDC_MODE_3DRP:
+				case TMDC_MODE_FGP:
+
+					for (i = 0; i < 10; i++)
+						input_report_key(dev, tmdc_btn_pad[i],
+							(data[j][tmdc_byte_d[i >> 3]] >> (i & 7)) & 1);
+
+					break;
+
+				default:
+
+					for (i = 0; i < ((data[j][TMDC_BYTE_DEF] & 0xf) << 3) && i < TMDC_BTN_JOY; i++)
+						input_report_key(dev, tmdc_btn_joy[i],
+							(data[j][tmdc_byte_d[i >> 3]] >> (i & 7)) & 1);
+
+					break;
+
+			}
+	}
+
+	tmdc->bads += bad;
+
+	mod_timer(&tmdc->timer, jiffies + TMDC_REFRESH_TIME);
+}
+
+static int tmdc_open(struct input_dev *dev)
+{
+	struct tmdc *tmdc = dev->private;
+	if (!tmdc->used++)
+		mod_timer(&tmdc->timer, jiffies + TMDC_REFRESH_TIME);	
+	return 0;
+}
+
+static void tmdc_close(struct input_dev *dev)
+{
+	struct tmdc *tmdc = dev->private;
+	if (!--tmdc->used)
+		del_timer(&tmdc->timer);
+}
+
+/*
+ * tmdc_probe() probes for ThrustMaster type joysticks.
+ */
+
+static void tmdc_connect(struct gameport *gameport, struct gameport_dev *dev)
+{
+	struct tmdc *tmdc;
+	struct js_tm_models {
+		unsigned char id;
+		char *name;
+		char abs;
+		char hats;
+		char joybtn;
+		char padbtn;
+	} models[] = {	{   1, "ThrustMaster Millenium 3D Inceptor",	  6, 0, 6,  0 },
+			{   3, "ThrustMaster Rage 3D Gamepad",		  2, 0, 0, 10 },
+			{ 163, "Thrustmaster Fusion GamePad",		  2, 0, 0, 10 },
+			{   0, "Unknown %d-axis, %d-button TM device %d", 0, 0, 0,  0 }};
+	unsigned char data[2][TMDC_MAX_LENGTH];
+	int i, j, m;
+
+	if (!(tmdc = kmalloc(sizeof(struct tmdc), GFP_KERNEL)))
+		return;
+	memset(tmdc, 0, sizeof(struct tmdc));
+
+	gameport->private = tmdc;
+
+	tmdc->gameport = gameport;
+	init_timer(&tmdc->timer);
+	tmdc->timer.data = (long) tmdc;
+	tmdc->timer.function = tmdc_timer;
+
+	if (gameport_open(gameport, dev, GAMEPORT_MODE_RAW))
+		goto fail1;
+
+	if (!(tmdc->exists = tmdc_read_packet(gameport, data)))
+		goto fail2;
+
+	for (j = 0; j < 2; j++)
+		if (tmdc->exists & (1 << j)) {
+
+			tmdc->mode[j] = data[j][TMDC_BYTE_ID];
+
+			for (m = 0; models[m].id && models[m].id != tmdc->mode[j]; m++);
+
+			if (!models[m].id) {
+				models[m].abs = data[j][TMDC_BYTE_DEF] >> 4;
+				models[m].joybtn = (data[j][TMDC_BYTE_DEF] & 0xf) << 3;
+			}
+
+			sprintf(tmdc->name[j], models[m].name, models[m].abs, models[m].joybtn, tmdc->mode[j]);
+
+			tmdc->dev[j].private = tmdc;
+			tmdc->dev[j].open = tmdc_open;
+			tmdc->dev[j].close = tmdc_close;
+
+			tmdc->dev[j].name = tmdc->name[j];
+			tmdc->dev[j].idbus = BUS_GAMEPORT;
+			tmdc->dev[j].idvendor = GAMEPORT_ID_VENDOR_THRUSTMASTER;
+			tmdc->dev[j].idproduct = models[m].id;
+			tmdc->dev[j].idversion = 0x0100;
+
+			tmdc->dev[j].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+
+			for (i = 0; i < models[m].abs && i < TMDC_ABS; i++) {
+				set_bit(tmdc_abs[i], tmdc->dev[j].absbit);
+				tmdc->dev[j].absmin[tmdc_abs[i]] = 8;
+				tmdc->dev[j].absmax[tmdc_abs[i]] = 248;
+				tmdc->dev[j].absfuzz[tmdc_abs[i]] = 2;
+				tmdc->dev[j].absflat[tmdc_abs[i]] = 4;
+			}
+
+			for (i = 0; i < models[m].hats && i < TMDC_ABS_HAT; i++) {
+				set_bit(tmdc_abs_hat[i], tmdc->dev[j].absbit);
+				tmdc->dev[j].absmin[tmdc_abs_hat[i]] = -1;
+				tmdc->dev[j].absmax[tmdc_abs_hat[i]] = 1;
+			}
+
+			for (i = 0; i < models[m].joybtn && i < TMDC_BTN_JOY; i++)
+				set_bit(tmdc_btn_joy[i], tmdc->dev[j].keybit);
+
+			for (i = 0; i < models[m].padbtn && i < TMDC_BTN_PAD; i++)
+				set_bit(tmdc_btn_pad[i], tmdc->dev[j].keybit);
+
+			input_register_device(tmdc->dev + j);
+			printk(KERN_INFO "input%d: %s on gameport%d.%d\n",
+				tmdc->dev[j].number, tmdc->name[j], gameport->number, j);
+		}
+
+	return;
+fail2:	gameport_close(gameport);
+fail1:	kfree(tmdc);
+}
+
+static void tmdc_disconnect(struct gameport *gameport)
+{
+	struct tmdc *tmdc = gameport->private;
+	int i;
+	for (i = 0; i < 2; i++)
+		if (tmdc->exists & (1 << i)) 
+			input_unregister_device(tmdc->dev + i);
+	gameport_close(gameport);
+	kfree(tmdc);
+}
+
+static struct gameport_dev tmdc_dev = {
+	connect:	tmdc_connect,
+	disconnect:	tmdc_disconnect,
+};
+
+int __init tmdc_init(void)
+{
+	gameport_register_device(&tmdc_dev);
+	return 0;
+}
+
+void __exit tmdc_exit(void)
+{
+	gameport_unregister_device(&tmdc_dev);
+}
+
+module_init(tmdc_init);
+module_exit(tmdc_exit);