patch-2.4.0-test2 linux/drivers/char/joystick/joy-analog.h

• Lines: 288
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.0-test1/linux/drivers/char/joystick/joy-analog.h
• Orig date: Wed Dec 8 14:11:26 1999

diff -u --recursive --new-file v2.4.0-test1/linux/drivers/char/joystick/joy-analog.h linux/drivers/char/joystick/joy-analog.h
@@ -1,287 +0,0 @@
-/*
- *  joy-analog.h  Version 1.2
- *
- *  Copyright (c) 1996-1999 Vojtech Pavlik
- *
- *  Sponsored by SuSE
- */
-
-/*
- * This file is designed to be included in any joystick driver
- * that communicates with standard analog joysticks. This currently
- * is: joy-analog.c, joy-assassin.c, and joy-lightning.c
- */
-
-/*
- * 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/bitops.h>
-
-#define JS_AN_AXES_STD		0x0f
-#define JS_AN_BUTTONS_STD	0xf0
-
-#define JS_AN_BUTTONS_CHF	0x01
-#define JS_AN_HAT1_CHF		0x02
-#define JS_AN_HAT2_CHF		0x04
-#define JS_AN_ANY_CHF		0x07
-#define JS_AN_HAT_FCS		0x08
-#define JS_AN_HATS_ALL		0x0e
-#define JS_AN_BUTTON_PXY_X	0x10
-#define JS_AN_BUTTON_PXY_Y	0x20
-#define JS_AN_BUTTON_PXY_U	0x40
-#define JS_AN_BUTTON_PXY_V	0x80
-#define JS_AN_BUTTONS_PXY_XY	0x30
-#define JS_AN_BUTTONS_PXY_UV	0xc0
-#define JS_AN_BUTTONS_PXY	0xf0
-
-static struct {
-	int x;
-	int y;
-} js_an_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1, 0}, { 0, 1}, {-1, 0}};
-
-struct js_an_info {
-	unsigned char mask[2];
-	unsigned int extensions;
-	int axes[4];
-	int initial[4];
-	unsigned char buttons;
-};
-
-/*
- * js_an_decode() decodes analog joystick data.
- */
-
-static void js_an_decode(struct js_an_info *info, int **axes, int **buttons)
-{
-	int i, j, k;
-	int hat1, hat2, hat3;
-
-	hat1 = hat2 = hat3 = 0;
-	if (info->mask[0] & JS_AN_BUTTONS_STD) buttons[0][0] = 0;
-	if (info->mask[1] & JS_AN_BUTTONS_STD) buttons[1][0] = 0;
-
-	if (info->extensions & JS_AN_ANY_CHF) {
-		switch (info->buttons & 0xf) {
-			case 0x1: buttons[0][0] = 0x01; break;
-			case 0x2: buttons[0][0] = 0x02; break;
-			case 0x4: buttons[0][0] = 0x04; break;
-			case 0x8: buttons[0][0] = 0x08; break;
-			case 0x5: buttons[0][0] = 0x10; break;
-			case 0x9: buttons[0][0] = 0x20; break;
-			case 0xf: hat1 = 1; break;
-			case 0xb: hat1 = 2; break;
-			case 0x7: hat1 = 3; break;
-			case 0x3: hat1 = 4; break;
-			case 0xe: hat2 = 1; break;
-			case 0xa: hat2 = 2; break;
-			case 0x6: hat2 = 3; break;
-			case 0xc: hat2 = 4; break;
-		}
-		k = info->extensions & JS_AN_BUTTONS_CHF ? 6 : 4;
-	} else {
-		for (i = 1; i >= 0; i--)
-			for (j = k = 0; j < 4; j++)
-				if (info->mask[i] & (0x10 << j))
-					buttons[i][0] |= ((info->buttons >> j) & 1) << k++;
-	}
-
-	if (info->extensions & JS_AN_BUTTON_PXY_X)
-		buttons[0][0] |= (info->axes[2] < (info->initial[2] >> 1)) << k++;
-	if (info->extensions & JS_AN_BUTTON_PXY_Y)
-		buttons[0][0] |= (info->axes[3] < (info->initial[3] >> 1)) << k++;
-	if (info->extensions & JS_AN_BUTTON_PXY_U)
-		buttons[0][0] |= (info->axes[2] > (info->initial[2] + (info->initial[2] >> 1))) << k++;
-	if (info->extensions & JS_AN_BUTTON_PXY_V)
-		buttons[0][0] |= (info->axes[3] > (info->initial[3] + (info->initial[3] >> 1))) << k++;
-
-	if (info->extensions & JS_AN_HAT_FCS)
-		for (j = 0; j < 4; j++)
-			if (info->axes[3] < ((info->initial[3] * ((j << 1) + 1)) >> 3)) {
-				hat3 = j + 1;
-				break;
-			}
-
-	for (i = 1; i >= 0; i--)
-		for (j = k = 0; j < 4; j++)
-			if (info->mask[i] & (1 << j))
-				axes[i][k++] = info->axes[j];
-
-	if (info->extensions & JS_AN_HAT1_CHF) {
-		axes[0][k++] = js_an_hat_to_axis[hat1].x;
-		axes[0][k++] = js_an_hat_to_axis[hat1].y;
-	}
-	if (info->extensions & JS_AN_HAT2_CHF) {
-		axes[0][k++] = js_an_hat_to_axis[hat2].x;
-		axes[0][k++] = js_an_hat_to_axis[hat2].y;
-	}
-	if (info->extensions & JS_AN_HAT_FCS) {
-		axes[0][k++] = js_an_hat_to_axis[hat3].x;
-		axes[0][k++] = js_an_hat_to_axis[hat3].y;
-	}
-}
-
-
-/*
- * js_an_init_corr() initializes the correction values for
- * analog joysticks.
- */
-
-static void __init js_an_init_corr(struct js_an_info *info, int **axes, struct js_corr **corr, int prec)
-{
-	int i, j, t;
-
-	for (i = 0; i < 2; i++)
-	for (j = 0; j < hweight8(info->mask[i] & 0xf); j++) {
-
-		if ((j == 2 && (info->mask[i] & 0xb) == 0xb) ||
-		    (j == 3 && (info->mask[i] & 0xf) == 0xf)) {
-			t = (axes[i][0] + axes[i][1]) >> 1;
-		} else {
-			t = axes[i][j];
-		}
-
-		corr[i][j].type = JS_CORR_BROKEN;
-		corr[i][j].prec = prec;
-		corr[i][j].coef[0] = t - (t >> 3);
-		corr[i][j].coef[1] = t + (t >> 3);
-		corr[i][j].coef[2] = (1 << 29) / (t - (t >> 2) + 1);
-		corr[i][j].coef[3] = (1 << 29) / (t - (t >> 2) + 1);
-	}
-
-	i = hweight8(info->mask[0] & 0xf);
-
-	for (j = i; j < i + (hweight8(info->extensions & JS_AN_HATS_ALL) << 1); j++) {
-		corr[0][j].type = JS_CORR_BROKEN;
-		corr[0][j].prec = 0;
-		corr[0][j].coef[0] = 0;
-		corr[0][j].coef[1] = 0;
-		corr[0][j].coef[2] = (1 << 29);
-		corr[0][j].coef[3] = (1 << 29);
-	}
-
-	for (i = 0; i < 4; i++)
-		info->initial[i] = info->axes[i];
-}
-
-
-/*
- * js_an_probe_devs() probes for analog joysticks.
- */
-
-static int __init js_an_probe_devs(struct js_an_info *info, int exist, int mask0, int mask1, struct js_port *port)
-{
-	info->mask[0] = info->mask[1] = info->extensions = 0;
-
-	if (mask0 || mask1) {
-		info->mask[0] = mask0 & (exist | 0xf0);
-		info->mask[1] = mask1 & (exist | 0xf0) & ~info->mask[0];
-		info->extensions = (mask0 >> 8) & ((exist & JS_AN_HAT_FCS) | ((exist << 2) & JS_AN_BUTTONS_PXY_XY) |
-					((exist << 4) & JS_AN_BUTTONS_PXY_UV) | JS_AN_ANY_CHF);
-
-		if (info->extensions & JS_AN_BUTTONS_PXY) {
-			info->mask[0] &= ~((info->extensions & JS_AN_BUTTONS_PXY_XY) >> 2);
-			info->mask[0] &= ~((info->extensions & JS_AN_BUTTONS_PXY_UV) >> 4);
-			info->mask[1] = 0;
-		}
-		if (info->extensions & JS_AN_HAT_FCS) {
-			info->mask[0] &= ~JS_AN_HAT_FCS;
-			info->mask[1] = 0;
-			info->extensions &= ~(JS_AN_BUTTON_PXY_Y | JS_AN_BUTTON_PXY_V);
-		}
-		if (info->extensions & JS_AN_ANY_CHF) {
-			info->mask[0] |= 0xf0;
-			info->mask[1] = 0;
-		}
-		if (!(info->mask[0] | info->mask[1])) return -1;
-	} else {
-		switch (exist) {
-			case 0x0:
-				return -1;
-			case 0x3:
-				info->mask[0] = 0xf3; /* joystick 0, assuming 4-button */
-				break;
-			case 0xb:
-				info->mask[0] = 0xfb; /* 3-axis, 4-button joystick */
-				break;
-			case 0xc:
-				info->mask[0] = 0xcc; /* joystick 1 */
-				break;
-			case 0xf:
-				info->mask[0] = 0xff; /* 4-axis 4-button joystick */
-				break;
-			default:
-				printk(KERN_WARNING "joy-analog: Unknown joystick device detected "
-					"(data=%#x), contact <vojtech@suse.cz>\n", exist);
-				return -1;
-		}
-	}
-
-	return !!info->mask[0] + !!info->mask[1];
-}
-
-/*
- * js_an_axes() returns the number of axes for an analog joystick.
- */
-
-static inline int js_an_axes(int i, struct js_an_info *info)
-{
-	return hweight8(info->mask[i] & 0x0f) + hweight8(info->extensions & JS_AN_HATS_ALL) * 2;
-}
-
-/*
- * js_an_buttons() returns the number of buttons for an analog joystick.
- */
-
-static inline int js_an_buttons(int i, struct js_an_info *info)
-{
-	return hweight8(info->mask[i] & 0xf0) +
-	       (info->extensions & JS_AN_BUTTONS_CHF) * 2 +
-	       hweight8(info->extensions & JS_AN_BUTTONS_PXY);
-}
-
-/*
- * js_an_name() constructs a name for an analog joystick.
- */
-
-static char js_an_name_buf[128] __initdata = "";
-
-static char __init *js_an_name(int i, struct js_an_info *info)
-{
-
-	sprintf(js_an_name_buf, "Analog %d-axis %d-button",
-		hweight8(info->mask[i] & 0x0f),
-		js_an_buttons(i, info));
-
-	if (info->extensions & JS_AN_HATS_ALL)
-		sprintf(js_an_name_buf, "%s %d-hat",
-			js_an_name_buf,
-			hweight8(info->extensions & JS_AN_HATS_ALL));
-
-	strcat(js_an_name_buf, " joystick");
-
-	if (info->extensions)
-		sprintf(js_an_name_buf, "%s with%s%s%s extensions",
-			js_an_name_buf,
-			info->extensions & JS_AN_ANY_CHF ? " CHF" : "",
-			info->extensions & JS_AN_HAT_FCS ? " FCS" : "",
-			info->extensions & JS_AN_BUTTONS_PXY ? " XY/UV" : "");
-
-	return js_an_name_buf;
-}