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mms.c revision 1.10.6.2
      1 /*	$NetBSD: mms.c,v 1.10.6.2 2006/12/30 20:45:48 yamt Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: mms.c,v 1.10.6.2 2006/12/30 20:45:48 yamt Exp $");
     41 
     42 #include <sys/param.h>
     43 #include <sys/device.h>
     44 #include <sys/proc.h>
     45 #include <sys/systm.h>
     46 
     47 #include "wsmouse.h"
     48 
     49 #include <dev/wscons/wsconsio.h>
     50 #include <dev/wscons/wsmousevar.h>
     51 
     52 #include <dreamcast/dev/maple/maple.h>
     53 #include <dreamcast/dev/maple/mapleconf.h>
     54 
     55 struct mms_condition {
     56 	uint32_t func_code;	/* function code (big endian) */
     57 	uint32_t buttons;
     58 	uint16_t axis1;		/* X */
     59 	uint16_t axis2;		/* Y */
     60 	uint16_t axis3;		/* wheel */
     61 	uint16_t axis4;
     62 	uint16_t axis5;
     63 	uint16_t axis6;
     64 	uint16_t axis7;
     65 	uint16_t axis8;
     66 };
     67 
     68 #define	MMS_BUTTON_C		0x01	/* middle */
     69 #define	MMS_BUTTON_B		0x02	/* right */
     70 #define	MMS_BUTTON_A		0x04	/* left */
     71 #define	MMS_BUTTON_START	0x08	/* thumb */
     72 #define	MMS_BUTTON_MASK		0x0f
     73 
     74 #define	MMS_MOVEMENT_BASE	0x200
     75 #define	MMS_MOVEMENT_MAX	0x3ff
     76 
     77 #define	MMS_FUNCDATA_AXIS1	0x001
     78 #define	MMS_FUNCDATA_AXIS2	0x002
     79 #define	MMS_FUNCDATA_AXIS3	0x004
     80 #define	MMS_FUNCDATA_AXIS4	0x008
     81 #define	MMS_FUNCDATA_AXIS5	0x010
     82 #define	MMS_FUNCDATA_AXIS6	0x020
     83 #define	MMS_FUNCDATA_AXIS7	0x040
     84 #define	MMS_FUNCDATA_AXIS8	0x080
     85 #define	MMS_FUNCDATA_C		0x100
     86 #define	MMS_FUNCDATA_B		0x200
     87 #define	MMS_FUNCDATA_A		0x400
     88 #define	MMS_FUNCDATA_START	0x800
     89 
     90 struct mms_softc {
     91 	struct device sc_dev;
     92 
     93 	struct device *sc_parent;
     94 	struct maple_unit *sc_unit;
     95 
     96 	uint32_t sc_oldbuttons;
     97 
     98 	struct device *sc_wsmousedev;
     99 };
    100 
    101 int	mms_match(struct device *, struct cfdata *, void *);
    102 void	mms_attach(struct device *, struct device *, void *);
    103 int	mms_detach(struct device *, int);
    104 
    105 CFATTACH_DECL(mms, sizeof(struct mms_softc),
    106     mms_match, mms_attach, mms_detach, NULL);
    107 
    108 int	mms_enable(void *);
    109 int	mms_ioctl(void *, u_long, caddr_t, int, struct lwp *);
    110 void	mms_disable(void *);
    111 
    112 const struct wsmouse_accessops mms_accessops = {
    113 	mms_enable,
    114 	mms_ioctl,
    115 	mms_disable,
    116 };
    117 
    118 void	mms_intr(void *, struct maple_response *, int, int);
    119 
    120 int
    121 mms_match(struct device *parent, struct cfdata *cf, void *aux)
    122 {
    123 	struct maple_attach_args *ma = aux;
    124 
    125 	return ma->ma_function == MAPLE_FN_MOUSE ? MAPLE_MATCH_FUNC : 0;
    126 }
    127 
    128 void
    129 mms_attach(struct device *parent, struct device *self, void *aux)
    130 {
    131 	struct mms_softc *sc = (void *) self;
    132 	struct maple_attach_args *ma = aux;
    133 	struct wsmousedev_attach_args a;
    134 	uint32_t data;
    135 
    136 	printf(": SEGA Dreamcast Mouse\n");
    137 
    138 	sc->sc_parent = parent;
    139 	sc->sc_unit = ma->ma_unit;
    140 
    141 	data = maple_get_function_data(ma->ma_devinfo,
    142 	    MAPLE_FN_MOUSE);
    143 
    144 	printf("%s: buttons:", sc->sc_dev.dv_xname);
    145 	if (data & MMS_FUNCDATA_A)
    146 		printf(" left");
    147 	if (data & MMS_FUNCDATA_C)
    148 		printf(" middle");
    149 	if (data & MMS_FUNCDATA_B)
    150 		printf(" right");
    151 	if (data & MMS_FUNCDATA_START)
    152 		printf(" thumb");
    153 	printf("\n");
    154 
    155 	sc->sc_oldbuttons = 0;
    156 
    157 	a.accessops = &mms_accessops;
    158 	a.accesscookie = sc;
    159 
    160 	/*
    161 	 * Attach the mouse, saving a handle to it.
    162 	 */
    163 	sc->sc_wsmousedev = config_found(self, &a, wsmousedevprint);
    164 	if (sc->sc_wsmousedev == NULL) {
    165 		/* Nothing more to do here. */
    166 		return;
    167 	}
    168 
    169 	maple_set_callback(parent, sc->sc_unit, MAPLE_FN_MOUSE, mms_intr, sc);
    170 }
    171 
    172 int
    173 mms_detach(struct device *self, int flags)
    174 {
    175 	struct mms_softc *sc = (void *) self;
    176 	int rv = 0;
    177 
    178 	if (sc->sc_wsmousedev != NULL)
    179 		rv = config_detach(sc->sc_wsmousedev, flags);
    180 
    181 	return rv;
    182 }
    183 
    184 int
    185 mms_enable(void *v)
    186 {
    187 	struct mms_softc *sc = v;
    188 
    189 	maple_enable_periodic(sc->sc_parent, sc->sc_unit, MAPLE_FN_MOUSE, 1);
    190 	return 0;
    191 }
    192 
    193 void
    194 mms_disable(void *v)
    195 {
    196 	struct mms_softc *sc = v;
    197 
    198 	maple_enable_periodic(sc->sc_parent, sc->sc_unit, MAPLE_FN_MOUSE, 0);
    199 }
    200 
    201 int
    202 mms_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct lwp *l)
    203 {
    204 
    205 	switch (cmd) {
    206 	case WSMOUSEIO_GTYPE:
    207 		*(u_int *) data = WSMOUSE_TYPE_MAPLE;
    208 		break;
    209 
    210 	case WSMOUSEIO_SRES:
    211 		/* XXX */
    212 		return EOPNOTSUPP;
    213 
    214 	default:
    215 		return EPASSTHROUGH;
    216 	}
    217 
    218 	return 0;
    219 }
    220 
    221 void
    222 mms_intr(void *arg, struct maple_response *response, int size, int flags)
    223 {
    224 	struct mms_softc *sc = arg;
    225 	struct mms_condition *data = (void *) response->data;
    226 	int dx = 0, dy = 0, dz = 0, buttons = 0;
    227 	uint32_t buttonchg;
    228 
    229 	if ((flags & MAPLE_FLAG_PERIODIC) == 0 ||
    230 	    size < sizeof(*data))
    231 		return;
    232 
    233 	data->buttons &= MMS_BUTTON_MASK;
    234 	buttonchg = sc->sc_oldbuttons ^ data->buttons;
    235 	sc->sc_oldbuttons = data->buttons;
    236 
    237 	dx = (data->axis1 & MMS_MOVEMENT_MAX) - MMS_MOVEMENT_BASE;
    238 	dy = (data->axis2 & MMS_MOVEMENT_MAX) - MMS_MOVEMENT_BASE;
    239 	dz = (data->axis3 & MMS_MOVEMENT_MAX) - MMS_MOVEMENT_BASE;
    240 
    241 	if (dx || dy || dz || buttonchg) {
    242 		if ((data->buttons & MMS_BUTTON_A) == 0)
    243 			buttons |= 0x01;
    244 		if ((data->buttons & MMS_BUTTON_C) == 0)
    245 			buttons |= 0x02;
    246 		if ((data->buttons & MMS_BUTTON_B) == 0)
    247 			buttons |= 0x04;
    248 		if ((data->buttons & MMS_BUTTON_START) == 0)
    249 			buttons |= 0x08;
    250 
    251 		wsmouse_input(sc->sc_wsmousedev,
    252 				buttons,
    253 				dx, -dy, dz, 0,
    254 				WSMOUSE_INPUT_DELTA);
    255 	}
    256 }
    257