patch-2.4.0-test2 linux/drivers/char/joystick/joy-creative.c

• Lines: 288
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.0-test1/linux/drivers/char/joystick/joy-creative.c
• Orig date: Tue Feb 1 01:35:43 2000

diff -u --recursive --new-file v2.4.0-test1/linux/drivers/char/joystick/joy-creative.c linux/drivers/char/joystick/joy-creative.c
@@ -1,287 +0,0 @@
-/*
- *  joy-creative.c  Version 1.2
- *
- *  Copyright (c) 1999 Vojtech Pavlik
- *
- *  Sponsored by SuSE
- */
-
-/*
- * This is a module for the Linux joystick driver, supporting
- * Creative Labs Blaster gamepad family.
- */
-
-/*
- * 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 <asm/io.h>
-#include <asm/system.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/joystick.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/init.h>
-
-#define JS_CR_MAX_STROBE	100	/* 100 us max wait for first strobe */
-#define JS_CR_LENGTH		36
-
-#define JS_CR_MODE_BGPC		8
-
-static int js_cr_port_list[] __initdata = {0x201, 0};
-static struct js_port* js_cr_port __initdata = NULL;
-
-struct js_cr_info {
-	int io;
-	unsigned char mode[2];
-};
-
-/*
- * js_cr_read_packet() reads a Blaster gamepad packet.
- */
-
-static int js_cr_read_packet(int io, unsigned int *data)
-{
-	unsigned long flags;
-	unsigned char u, v, w;
-	__u64 buf[2];
-	int r[2], t[2], p[2];
-	int i, j, ret;
-
-	for (i = 0; i < 2; i++) {
-		r[i] = buf[i] = 0;
-		p[i] = t[i] = JS_CR_MAX_STROBE;
-		p[i] += JS_CR_MAX_STROBE;
-	}
-	
-	__save_flags(flags);
-	__cli();
-
-	u = inb(io);
-
-	do {
-		t[0]--; t[1]--;
-		v = inb(io);
-		for (i = 0, w = u ^ v; i < 2 && w; i++, w >>= 2)
-			if (w & 0x30) {
-				if ((w & 0x30) < 0x30 && r[i] < JS_CR_LENGTH && t[i] > 0) {
-					buf[i] |= (__u64)((w >> 5) & 1) << r[i]++;
-					p[i] = t[i] = (p[i] - t[i]) << 1;
-					u = v;
-				} else t[i] = 0;
-			}
-	} while (t[0] > 0 || t[1] > 0);
-
-	__restore_flags(flags);
-
-
-	ret = 0;
-
-	for (i = 0; i < 2; i++) {
-
-		if (r[i] != JS_CR_LENGTH) continue;
-
-		for (j = 0; j < JS_CR_LENGTH && (buf[i] & 0x04104107f) ^ 0x041041040; j++)
-			buf[i] = (buf[i] >> 1) | ((__u64)(buf[i] & 1) << (JS_CR_LENGTH - 1));
-
-		if (j < JS_CR_LENGTH) ret |= (1 << i);
-
-		data[i] = ((buf[i] >>  7) & 0x000001f) | ((buf[i] >>  8) & 0x00003e0)
-			| ((buf[i] >>  9) & 0x0007c00) | ((buf[i] >> 10) & 0x00f8000)
-			| ((buf[i] >> 11) & 0x1f00000);
-
-	}
-
-	return ret;
-}
-
-/*
- * js_cr_read() reads and analyzes Blaster gamepad data.
- */
-
-static int js_cr_read(void *xinfo, int **axes, int **buttons)
-{
-	struct js_cr_info *info = xinfo;
-	unsigned int data[2];
-	int i, r;
-
-	if (!(r = js_cr_read_packet(info->io, data)))
-		return -1;
-
-	for (i = 0; i < 2; i++)
-		if (r & (1 << i)) {
-			switch (info->mode[i]) {
-
-				case JS_CR_MODE_BGPC:
-
-					axes[i][0] = ((data[i] >> 4) & 1) - ((data[i] >> 3) & 1);
-					axes[i][1] = ((data[i] >> 2) & 1) - ((data[i] >> 1) & 1);
-
-					buttons[i][0] = ((data[i] >> 12) & 0x007) | ((data[i] >> 6) & 0x038)
-						      | ((data[i] >>  1) & 0x0c0) | ((data[i] >> 7) & 0x300)
-						      | ((data[i] <<  5) & 0xc00);
-
-					break;
-
-				default:
-					break;
-
-			}
-		}
-
-	return 0;
-}
-
-/*
- * js_cr_open() is a callback from the file open routine.
- */
-
-static int js_cr_open(struct js_dev *jd)
-{
-	MOD_INC_USE_COUNT;
-	return 0;
-}
-
-/*
- * js_cr_close() is a callback from the file release routine.
- */
-
-static int js_cr_close(struct js_dev *jd)
-{
-	MOD_DEC_USE_COUNT;
-	return 0;
-}
-
-/*
- * js_cr_init_corr() initializes correction values of
- * Blaster gamepads.
- */
-
-static void __init js_cr_init_corr(int mode, struct js_corr *corr)
-{
-	int i;
-
-	switch (mode) {
-
-		case JS_CR_MODE_BGPC:
-
-			for (i = 0; i < 2; i++) {
-				corr[i].type = JS_CORR_BROKEN;
-				corr[i].prec = 0;
-				corr[i].coef[0] = 0;
-				corr[i].coef[1] = 0;
-				corr[i].coef[2] = (1 << 29);
-				corr[i].coef[3] = (1 << 29);
-			}
-
-			break;
-
-	}
-}
-
-/*
- * js_cr_probe() probes for Blaster gamepads.
- */
-
-static struct js_port __init *js_cr_probe(int io, struct js_port *port)
-{
-	struct js_cr_info info;
-	char *names[] = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "Blaster GamePad Cobra" };
-	char axes[] = { 0, 0, 0, 0, 0, 0, 0, 0, 2 };
-	char buttons[] = { 0, 0, 0, 0, 0, 0, 0, 0, 12 };
-	unsigned int data[2];
-	int i, r;
-
-	if (check_region(io, 1)) return port;
-
-	info.mode[0] = info.mode[1] = 0;
-
-	if (!(r = js_cr_read_packet(io, data)))
-		return port;
-
-	for (i = 0; i < 2; i++) {
-		if (r & (1 << i)) {
-			if (~data[i] & 1) {
-				info.mode[i] = JS_CR_MODE_BGPC;
-			} else {
-				info.mode[i] = (data[i] >> 2) & 7;
-			}
-			if (!names[info.mode[i]]) {
-				printk(KERN_WARNING "joy-creative: Unknown Creative device %d at %#x\n",
-					info.mode[i], io);
-				info.mode[i] = 0;
-			}
-		}
-	}
-
-	if (!info.mode[0] && !info.mode[1]) return port;
-
-	info.io = io;
-
-	request_region(io, 1, "joystick (creative)");
-	port = js_register_port(port, &info, 2, sizeof(struct js_cr_info), js_cr_read);
-
-	for (i = 0; i < 2; i++)
-		if (info.mode[i]) {
-			printk(KERN_INFO "js%d: %s at %#x\n",
-				js_register_device(port, i, axes[info.mode[i]], buttons[info.mode[i]],
-					names[info.mode[i]], js_cr_open, js_cr_close),
-				names[info.mode[i]], io);
-			js_cr_init_corr(info.mode[i], port->corr[i]);
-		}
-
-	return port;
-}
-
-#ifdef MODULE
-int init_module(void)
-#else
-int __init js_cr_init(void)
-#endif
-{
-	int *p;
-
-	for (p = js_cr_port_list; *p; p++) js_cr_port = js_cr_probe(*p, js_cr_port);
-	if (js_cr_port) return 0;
-
-#ifdef MODULE
-	printk(KERN_WARNING "joy-creative: no joysticks found\n");
-#endif
-
-	return -ENODEV;
-}
-
-#ifdef MODULE
-void cleanup_module(void)
-{
-	int i;
-	struct js_cr_info *info;
-
-	while (js_cr_port) {
-		for (i = 0; i < js_cr_port->ndevs; i++)
-			if (js_cr_port->devs[i])
-				js_unregister_device(js_cr_port->devs[i]);
-		info = js_cr_port->info;
-		release_region(info->io, 1);
-		js_cr_port = js_unregister_port(js_cr_port);
-	}
-}
-#endif