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      1 /*	$NetBSD: ams.c,v 1.28 2024/12/16 03:45:52 nat Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 1998	Colin Wood
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by Colin Wood.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 __KERNEL_RCSID(0, "$NetBSD: ams.c,v 1.28 2024/12/16 03:45:52 nat Exp $");
     35 
     36 #include <sys/param.h>
     37 #include <sys/device.h>
     38 #include <sys/fcntl.h>
     39 #include <sys/poll.h>
     40 #include <sys/select.h>
     41 #include <sys/proc.h>
     42 #include <sys/signalvar.h>
     43 #include <sys/systm.h>
     44 
     45 #include "aed.h"
     46 #include "wsmouse.h"
     47 
     48 #include <dev/wscons/wsconsio.h>
     49 #include <dev/wscons/wsmousevar.h>
     50 
     51 #include <machine/autoconf.h>
     52 #include <machine/keyboard.h>
     53 
     54 #include <mac68k/mac68k/macrom.h>
     55 #include <mac68k/dev/adbvar.h>
     56 #include <mac68k/dev/aedvar.h>
     57 #include <mac68k/dev/amsvar.h>
     58 
     59 /*
     60  * Function declarations.
     61  */
     62 static int	amsmatch(device_t, cfdata_t, void *);
     63 static void	amsattach(device_t, device_t, void *);
     64 static void	ems_init(struct ams_softc *);
     65 static void	ms_processevent(adb_event_t *, struct ams_softc *);
     66 
     67 /*
     68  * Global variables.
     69  */
     70 extern int	kbd_polling; /* Are we polling (Debugger mode)? from kbd.c */
     71 
     72 /*
     73  * Local variables.
     74  */
     75 
     76 /* Driver definition. */
     77 CFATTACH_DECL_NEW(ams, sizeof(struct ams_softc),
     78     amsmatch, amsattach, NULL, NULL);
     79 
     80 extern struct cfdriver ams_cd;
     81 
     82 int ams_enable(void *);
     83 int ams_ioctl(void *, u_long, void *, int, struct lwp *);
     84 void ams_disable(void *);
     85 
     86 const struct wsmouse_accessops ams_accessops = {
     87 	ams_enable,
     88 	ams_ioctl,
     89 	ams_disable,
     90 };
     91 
     92 static int
     93 amsmatch(device_t parent, cfdata_t cf, void *aux)
     94 {
     95 	struct adb_attach_args * aa_args = (struct adb_attach_args *)aux;
     96 
     97 	if (aa_args->origaddr == ADBADDR_MS)
     98 		return 1;
     99 	else
    100 		return 0;
    101 }
    102 
    103 static void
    104 amsattach(device_t parent, device_t self, void *aux)
    105 {
    106 	ADBSetInfoBlock adbinfo;
    107 	struct ams_softc *sc = device_private(self);
    108 	struct adb_attach_args * aa_args = (struct adb_attach_args *)aux;
    109 	int error __unused;
    110 #if NWSMOUSE > 0
    111 	struct wsmousedev_attach_args a;
    112 #endif
    113 
    114 	sc->origaddr = aa_args->origaddr;
    115 	sc->adbaddr = aa_args->adbaddr;
    116 	sc->handler_id = aa_args->handler_id;
    117 
    118 	sc->sc_class = MSCLASS_MOUSE;
    119 	sc->sc_buttons = 1;
    120 	sc->sc_res = 100;
    121 	sc->sc_devid[0] = 0;
    122 	sc->sc_devid[4] = 0;
    123 
    124 	adbinfo.siServiceRtPtr = (Ptr)adb_ms_asmcomplete;
    125 	adbinfo.siDataAreaAddr = (void *)sc;
    126 
    127 	ems_init(sc);
    128 
    129 	if (mac68k_machine.machineid == MACH_MACPB500 &&
    130 	    sc->sc_class == MSCLASS_MOUSE && sc->sc_devid[0] == '\0')
    131 		sc->handler_id = ADBMS_200DPI;
    132 
    133 	/* print out the type of mouse we have */
    134 	switch (sc->handler_id) {
    135 	case ADBMS_100DPI:
    136 		printf("%d-button, %d dpi mouse\n", sc->sc_buttons,
    137 		    (int)(sc->sc_res));
    138 		break;
    139 	case ADBMS_200DPI:
    140 		sc->sc_res = 200;
    141 		printf("%d-button, %d dpi mouse\n", sc->sc_buttons,
    142 		    (int)(sc->sc_res));
    143 		break;
    144 	case ADBMS_MSA3:
    145 		printf("Mouse Systems A3 mouse, %d-button, %d dpi\n",
    146 		    sc->sc_buttons, (int)(sc->sc_res));
    147 		break;
    148 	case ADBMS_USPEED:
    149 		printf("MicroSpeed mouse, default parameters\n");
    150 		break;
    151 	case ADBMS_UCONTOUR:
    152 		printf("Contour mouse, default parameters\n");
    153 		break;
    154 	case ADBMS_EXTENDED:
    155 		if (sc->sc_devid[0] == '\0') {
    156 			printf("Logitech ");
    157 			switch (sc->sc_class) {
    158 			case MSCLASS_MOUSE:
    159 				printf("MouseMan (non-EMP) mouse");
    160 				break;
    161 			case MSCLASS_TRACKBALL:
    162 				printf("TrackMan (non-EMP) trackball");
    163 				break;
    164 			default:
    165 				printf("non-EMP relative positioning device");
    166 				break;
    167 			}
    168 			printf("\n");
    169 		} else {
    170 			printf("EMP ");
    171 			switch (sc->sc_class) {
    172 			case MSCLASS_TABLET:
    173 				printf("tablet");
    174 				break;
    175 			case MSCLASS_MOUSE:
    176 				printf("mouse");
    177 				break;
    178 			case MSCLASS_TRACKBALL:
    179 				printf("trackball");
    180 				break;
    181 			default:
    182 				printf("unknown device");
    183 				break;
    184 			}
    185 			printf(" <%s> %d-button, %d dpi\n", sc->sc_devid,
    186 			    sc->sc_buttons, (int)(sc->sc_res));
    187 		}
    188 		break;
    189 	default:
    190 		printf("relative positioning device (mouse?) (%d)\n",
    191 			sc->handler_id);
    192 		break;
    193 	}
    194 	error = SetADBInfo(&adbinfo, sc->adbaddr);
    195 #ifdef ADB_DEBUG
    196 	if (adb_debug)
    197 		printf("ams: returned %d from SetADBInfo\n", error);
    198 #endif
    199 
    200 #if NWSMOUSE > 0
    201 	a.accessops = &ams_accessops;
    202 	a.accesscookie = sc;
    203 	sc->sc_wsmousedev = config_found(self, &a, wsmousedevprint, CFARGS_NONE);
    204 #endif
    205 }
    206 
    207 
    208 /*
    209  * Initialize extended mouse support -- probes devices as described
    210  * in Inside Macintosh: Devices, Chapter 5 "ADB Manager".
    211  *
    212  * Extended Mouse Protocol is documented in TechNote HW1:
    213  * 	"ADB - The Untold Story:  Space Aliens Ate My Mouse"
    214  *
    215  * Supports: Extended Mouse Protocol, MicroSpeed Mouse Deluxe,
    216  * 	     Mouse Systems A^3 Mouse, Logitech non-EMP MouseMan
    217  */
    218 void
    219 ems_init(struct ams_softc *sc)
    220 {
    221 	int adbaddr;
    222 	short cmd;
    223 	u_char buffer[9];
    224 
    225 	adbaddr = sc->adbaddr;
    226 	if (sc->origaddr != ADBADDR_MS)
    227 		return;
    228 	if (sc->handler_id == ADBMS_USPEED ||
    229 	    sc->handler_id == ADBMS_UCONTOUR) {
    230 		/* Found MicroSpeed Mouse Deluxe Mac or Contour Mouse */
    231 		cmd = ADBLISTEN(adbaddr, 1);
    232 
    233 		/*
    234 		 * To setup the MicroSpeed or the Contour, it appears
    235 		 * that we can send the following command to the mouse
    236 		 * and then expect data back in the form:
    237 		 *  buffer[0] = 4 (bytes)
    238 		 *  buffer[1], buffer[2] as std. mouse
    239 		 *  buffer[3] = buffer[4] = 0xff when no buttons
    240 		 *   are down.  When button N down, bit N is clear.
    241 		 * buffer[4]'s locking mask enables a
    242 		 * click to toggle the button down state--sort of
    243 		 * like the "Easy Access" shift/control/etc. keys.
    244 		 * buffer[3]'s alternative speed mask enables using
    245 		 * different speed when the corr. button is down
    246 		 */
    247 		buffer[0] = 4;
    248 		buffer[1] = 0x00;	/* Alternative speed */
    249 		buffer[2] = 0x00;	/* speed = maximum */
    250 		buffer[3] = 0x10;	/* enable extended protocol,
    251 					 * lower bits = alt. speed mask
    252 					 *            = 0000b
    253 					 */
    254 		buffer[4] = 0x07;	/* Locking mask = 0000b,
    255 					 * enable buttons = 0111b
    256 					 */
    257 		adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd);
    258 
    259 		sc->sc_buttons = 3;
    260 		sc->sc_res = 200;
    261 		return;
    262 	}
    263 	if ((sc->handler_id == ADBMS_100DPI) ||
    264 	    (sc->handler_id == ADBMS_200DPI)) {
    265 		/* found a mouse */
    266 		cmd = ADBTALK(adbaddr, 3);
    267 		if (adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd)) {
    268 #ifdef ADB_DEBUG
    269 			if (adb_debug)
    270 				printf("adb: ems_init timed out\n");
    271 #endif
    272 			return;
    273 		}
    274 
    275 		/* Attempt to initialize Extended Mouse Protocol */
    276 		buffer[2] = 4; /* make handler ID 4 */
    277 		cmd = ADBLISTEN(adbaddr, 3);
    278 		if (adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd)) {
    279 #ifdef ADB_DEBUG
    280 			if (adb_debug)
    281 				printf("adb: ems_init timed out\n");
    282 #endif
    283 			return;
    284 		}
    285 
    286 		/*
    287 		 * Check to see if successful, if not
    288 		 * try to initialize it as other types
    289 		 */
    290 		cmd = ADBTALK(adbaddr, 3);
    291 		if (adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd) == 0 &&
    292 		    buffer[2] == ADBMS_EXTENDED) {
    293 			sc->handler_id = ADBMS_EXTENDED;
    294 			cmd = ADBTALK(adbaddr, 1);
    295 			if (adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd)) {
    296 #ifdef ADB_DEBUG
    297 				if (adb_debug)
    298 					printf("adb: ems_init timed out\n");
    299 #endif
    300 			} else if (buffer[0] == 8) {
    301 				/* we have a true EMP device */
    302 				sc->sc_class = buffer[7];
    303 				sc->sc_buttons = buffer[8];
    304 				sc->sc_res = (int)*(short *)&buffer[5];
    305 				memcpy(sc->sc_devid, &(buffer[1]), 4);
    306 			} else if (buffer[1] == 0x9a &&
    307 			    ((buffer[2] == 0x20) || (buffer[2] == 0x21))) {
    308 				/*
    309 				 * Set up non-EMP Mouseman/Trackman to put
    310 				 * button bits in 3rd byte instead of sending
    311 				 * via pseudo keyboard device.
    312 				 */
    313 				cmd = ADBLISTEN(adbaddr, 1);
    314 				buffer[0]=2;
    315 				buffer[1]=0x00;
    316 				buffer[2]=0x81;
    317 				adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd);
    318 
    319 				cmd = ADBLISTEN(adbaddr, 1);
    320 				buffer[0]=2;
    321 				buffer[1]=0x01;
    322 				buffer[2]=0x81;
    323 				adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd);
    324 
    325 				cmd = ADBLISTEN(adbaddr, 1);
    326 				buffer[0]=2;
    327 				buffer[1]=0x02;
    328 				buffer[2]=0x81;
    329 				adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd);
    330 
    331 				cmd = ADBLISTEN(adbaddr, 1);
    332 				buffer[0]=2;
    333 				buffer[1]=0x03;
    334 				buffer[2]=0x38;
    335 				adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd);
    336 
    337 				sc->sc_buttons = 3;
    338 				sc->sc_res = 400;
    339 				if (buffer[2] == 0x21)
    340 					sc->sc_class = MSCLASS_TRACKBALL;
    341 				else
    342 					sc->sc_class = MSCLASS_MOUSE;
    343 			} else
    344 				/* unknown device? */;
    345 		} else {
    346 			/* Attempt to initialize as an A3 mouse */
    347 			buffer[2] = 0x03; /* make handler ID 3 */
    348 			cmd = ADBLISTEN(adbaddr, 3);
    349 			if (adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd)) {
    350 #ifdef ADB_DEBUG
    351 				if (adb_debug)
    352 					printf("adb: ems_init timed out\n");
    353 #endif
    354 				return;
    355 			}
    356 
    357 			/*
    358 			 * Check to see if successful, if not
    359 			 * try to initialize it as other types
    360 			 */
    361 			cmd = ADBTALK(adbaddr, 3);
    362 			if (adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd) == 0
    363 			    && buffer[2] == ADBMS_MSA3) {
    364 				sc->handler_id = ADBMS_MSA3;
    365 				/* Initialize as above */
    366 				cmd = ADBLISTEN(adbaddr, 2);
    367 				/* listen 2 */
    368 				buffer[0] = 3;
    369 				buffer[1] = 0x00;
    370 				/* Irrelevant, buffer has 0x77 */
    371 				buffer[2] = 0x07;
    372 				/*
    373 				 * enable 3 button mode = 0111b,
    374 				 * speed = normal
    375 				 */
    376 				adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd);
    377 				sc->sc_buttons = 3;
    378 				sc->sc_res = 300;
    379 			} else {
    380 				/* No special support for this mouse */
    381 			}
    382 		}
    383 	}
    384 }
    385 
    386 /*
    387  * Handle putting the mouse data received from the ADB into
    388  * an ADB event record.
    389  */
    390 void
    391 ms_adbcomplete(void *buffer, void *data_area, int adb_command)
    392 {
    393 	adb_event_t event;
    394 	struct ams_softc *amsc;
    395 	uint8_t *buf = (uint8_t*)buffer;
    396 	int adbaddr;
    397 #ifdef ADB_DEBUG
    398 	int i;
    399 
    400 	if (adb_debug)
    401 		printf("adb: transaction completion\n");
    402 #endif
    403 
    404 	adbaddr = ADB_CMDADDR(adb_command);
    405 	amsc = (struct ams_softc *)data_area;
    406 
    407 	if ((amsc->handler_id == ADBMS_EXTENDED) && (amsc->sc_devid[0] == 0)) {
    408 		/* massage the data to look like EMP data */
    409 		if ((buf[3] & 0x04) == 0x04)
    410 			buf[1] &= 0x7f;
    411 		else
    412 			buf[1] |= 0x80;
    413 		if ((buf[3] & 0x02) == 0x02)
    414 			buf[2] &= 0x7f;
    415 		else
    416 			buf[2] |= 0x80;
    417 		if ((buf[3] & 0x01) == 0x01)
    418 			buf[3] = 0x00;
    419 		else
    420 			buf[3] = 0x80;
    421 	}
    422 
    423 	event.addr = adbaddr;
    424 	event.hand_id = amsc->handler_id;
    425 	event.def_addr = amsc->origaddr;
    426 	event.byte_count = buf[0];
    427 	memcpy(event.bytes, buf + 1, event.byte_count);
    428 
    429 #ifdef ADB_DEBUG
    430 	if (adb_debug) {
    431 		printf("ams: from %d at %d (org %d) %u:", event.addr,
    432 		    event.hand_id, event.def_addr, buf[0]);
    433 		for (i = 1; i <= buf[0]; i++)
    434 			printf(" %x", buf[i]);
    435 		printf("\n");
    436 	}
    437 #endif
    438 
    439 	microtime(&event.timestamp);
    440 
    441 	ms_processevent(&event, amsc);
    442 }
    443 
    444 /*
    445  * Given a mouse ADB event, record the button settings, calculate the
    446  * x- and y-axis motion, and handoff the event to the appropriate subsystem.
    447  */
    448 static void
    449 ms_processevent(adb_event_t *event, struct ams_softc *amsc)
    450 {
    451 	adb_event_t new_event;
    452 	int i, button_bit, max_byte, mask, buttons;
    453 
    454 	new_event = *event;
    455 	buttons = 0;
    456 
    457 	/*
    458 	 * This should handle both plain ol' Apple mice and mice
    459 	 * that claim to support the Extended Apple Mouse Protocol.
    460 	 */
    461 	max_byte = event->byte_count;
    462 	button_bit = 1;
    463 	switch (event->hand_id) {
    464 	case ADBMS_USPEED:
    465 	case ADBMS_UCONTOUR:
    466 		/* MicroSpeed mouse and Contour mouse */
    467 		if (max_byte == 4)
    468 			buttons = (~event->bytes[2]) & 0xff;
    469 		else
    470 			buttons = (event->bytes[0] & 0x80) ? 0 : 1;
    471 		break;
    472 	case ADBMS_MSA3:
    473 		/* Mouse Systems A3 mouse */
    474 		if (max_byte == 3)
    475 			buttons = (~event->bytes[2]) & 0x07;
    476 		else
    477 			buttons = (event->bytes[0] & 0x80) ? 0 : 1;
    478 		break;
    479 	default:
    480 		/* Classic Mouse Protocol (up to 2 buttons) */
    481 		for (i = 0; i < 2; i++, button_bit <<= 1)
    482 			/* 0 when button down */
    483 			if (!(event->bytes[i] & 0x80))
    484 				buttons |= button_bit;
    485 			else
    486 				buttons &= ~button_bit;
    487 		/* Extended Protocol (up to 6 more buttons) */
    488 		for (mask = 0x80; i < max_byte;
    489 		     i += (mask == 0x80), button_bit <<= 1) {
    490 			/* 0 when button down */
    491 			if (!(event->bytes[i] & mask))
    492 				buttons |= button_bit;
    493 			else
    494 				buttons &= ~button_bit;
    495 			mask = ((mask >> 4) & 0xf)
    496 				| ((mask & 0xf) << 4);
    497 		}
    498 		break;
    499 	}
    500 	new_event.u.m.buttons = amsc->sc_mb | buttons;
    501 	new_event.u.m.dx = ((signed int) (event->bytes[1] & 0x3f)) -
    502 				((event->bytes[1] & 0x40) ? 64 : 0);
    503 	new_event.u.m.dy = ((signed int) (event->bytes[0] & 0x3f)) -
    504 				((event->bytes[0] & 0x40) ? 64 : 0);
    505 
    506 	int phys_buttons = new_event.u.m.buttons;
    507 #if NAED > 0
    508 	if (!aed_input(&new_event))
    509 #endif
    510 #if NWSMOUSE > 0
    511 		if (amsc->sc_wsmousedev != NULL)  { /* wsmouse is attached? */
    512 			if ((phys_buttons != new_event.u.m.buttons) &&
    513 							    (phys_buttons & 1))
    514 				amsc->sc_oldbuttons =
    515 				    new_event.u.m.buttons & ~1;
    516 			else if ((phys_buttons == new_event.u.m.buttons) &&
    517 						    (amsc->sc_oldbuttons == 0))
    518 				amsc->sc_oldbuttons = phys_buttons;
    519 
    520 			if (phys_buttons == 0)
    521 				amsc->sc_oldbuttons = 0;
    522 			wsmouse_input(amsc->sc_wsmousedev,
    523 			    amsc->sc_oldbuttons,
    524 			    new_event.u.m.dx, -new_event.u.m.dy, 0, 0,
    525 			    WSMOUSE_INPUT_DELTA);
    526 		}
    527 #else
    528 		/* do nothing */ ;
    529 #endif
    530 }
    531 
    532 int
    533 ams_enable(void *v)
    534 {
    535 	return 0;
    536 }
    537 
    538 int
    539 ams_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
    540 {
    541 
    542 	switch (cmd) {
    543 	case WSMOUSEIO_GTYPE:
    544 		*(u_int *)data = WSMOUSE_TYPE_ADB;
    545 		return 0;
    546 	}
    547 	return EPASSTHROUGH;
    548 }
    549 
    550 void
    551 ams_disable(void *v)
    552 {
    553 }
    554