Change the kernel dev_t, representing a pointer to a specinfo structure,
[dragonfly.git] / sys / dev / misc / mse / mse.c
CommitLineData
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1/*
2 * Copyright 1992 by the University of Guelph
3 *
4 * Permission to use, copy and modify this
5 * software and its documentation for any purpose and without
6 * fee is hereby granted, provided that the above copyright
7 * notice appear in all copies and that both that copyright
8 * notice and this permission notice appear in supporting
9 * documentation.
10 * University of Guelph makes no representations about the suitability of
11 * this software for any purpose. It is provided "as is"
12 * without express or implied warranty.
13 *
14 * $FreeBSD: src/sys/i386/isa/mse.c,v 1.49.2.1 2000/03/20 13:58:47 yokota Exp $
b13267a5 15 * $DragonFly: src/sys/dev/misc/mse/mse.c,v 1.18 2006/09/10 01:26:34 dillon Exp $
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16 */
17/*
18 * Driver for the Logitech and ATI Inport Bus mice for use with 386bsd and
19 * the X386 port, courtesy of
20 * Rick Macklem, rick@snowhite.cis.uoguelph.ca
21 * Caveats: The driver currently uses spltty(), but doesn't use any
22 * generic tty code. It could use splmse() (that only masks off the
23 * bus mouse interrupt, but that would require hacking in i386/isa/icu.s.
24 * (This may be worth the effort, since the Logitech generates 30/60
25 * interrupts/sec continuously while it is open.)
26 * NB: The ATI has NOT been tested yet!
27 */
28
29/*
30 * Modification history:
31 * Sep 6, 1994 -- Lars Fredriksen(fredriks@mcs.com)
32 * improved probe based on input from Logitech.
33 *
34 * Oct 19, 1992 -- E. Stark (stark@cs.sunysb.edu)
35 * fixes to make it work with Microsoft InPort busmouse
36 *
37 * Jan, 1993 -- E. Stark (stark@cs.sunysb.edu)
38 * added patches for new "select" interface
39 *
40 * May 4, 1993 -- E. Stark (stark@cs.sunysb.edu)
41 * changed position of some spl()'s in mseread
42 *
43 * October 8, 1993 -- E. Stark (stark@cs.sunysb.edu)
44 * limit maximum negative x/y value to -127 to work around XFree problem
45 * that causes spurious button pushes.
46 */
47
48#include <sys/param.h>
49#include <sys/systm.h>
50#include <sys/conf.h>
fef8985e 51#include <sys/device.h>
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52#include <sys/kernel.h>
53#include <sys/bus.h>
54#include <sys/poll.h>
9183fa5b 55#include <sys/selinfo.h>
ed2a6656 56#include <sys/thread2.h>
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57#include <sys/uio.h>
58
59#include <machine/bus_pio.h>
60#include <machine/bus.h>
61#include <machine/clock.h>
62#include <machine/mouse.h>
63#include <machine/resource.h>
64#include <sys/rman.h>
65
1f2de5d4 66#include <bus/isa/isavar.h>
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67
68/* driver configuration flags (config) */
69#define MSE_CONFIG_ACCEL 0x00f0 /* acceleration factor */
70#define MSE_CONFIG_FLAGS (MSE_CONFIG_ACCEL)
71
72/*
73 * Software control structure for mouse. The sc_enablemouse(),
74 * sc_disablemouse() and sc_getmouse() routines must be called spl'd().
75 */
76typedef struct mse_softc {
77 int sc_flags;
78 int sc_mousetype;
79 struct selinfo sc_selp;
80 struct resource *sc_port;
81 struct resource *sc_intr;
82 bus_space_tag_t sc_iot;
83 bus_space_handle_t sc_ioh;
84 void *sc_ih;
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85 void (*sc_enablemouse) (bus_space_tag_t t,
86 bus_space_handle_t h);
87 void (*sc_disablemouse) (bus_space_tag_t t,
88 bus_space_handle_t h);
89 void (*sc_getmouse) (bus_space_tag_t t,
984263bc 90 bus_space_handle_t h,
38e94a25 91 int *dx, int *dy, int *but);
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92 int sc_deltax;
93 int sc_deltay;
94 int sc_obuttons;
95 int sc_buttons;
96 int sc_bytesread;
97 u_char sc_bytes[MOUSE_SYS_PACKETSIZE];
da8ef4a8 98 struct callout sc_callout;
984263bc 99 int sc_watchdog;
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100 mousehw_t hw;
101 mousemode_t mode;
102 mousestatus_t status;
103} mse_softc_t;
104
105static devclass_t mse_devclass;
106
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107static int mse_probe (device_t dev);
108static int mse_attach (device_t dev);
109static int mse_detach (device_t dev);
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110
111static device_method_t mse_methods[] = {
112 DEVMETHOD(device_probe, mse_probe),
113 DEVMETHOD(device_attach, mse_attach),
114 DEVMETHOD(device_detach, mse_detach),
115 { 0, 0 }
116};
117
118static driver_t mse_driver = {
119 "mse",
120 mse_methods,
121 sizeof(mse_softc_t),
122};
123
124DRIVER_MODULE(mse, isa, mse_driver, mse_devclass, 0, 0);
125
126static struct isa_pnp_id mse_ids[] = {
127 { 0x000fd041, "Bus mouse" }, /* PNP0F00 */
128 { 0x020fd041, "InPort mouse" }, /* PNP0F02 */
129 { 0x0d0fd041, "InPort mouse compatible" }, /* PNP0F0D */
130 { 0x110fd041, "Bus mouse compatible" }, /* PNP0F11 */
131 { 0x150fd041, "Logitech bus mouse" }, /* PNP0F15 */
132 { 0x180fd041, "Logitech bus mouse compatible" },/* PNP0F18 */
133 { 0 }
134};
135
136static d_open_t mseopen;
137static d_close_t mseclose;
138static d_read_t mseread;
139static d_ioctl_t mseioctl;
140static d_poll_t msepoll;
141
142#define CDEV_MAJOR 27
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143static struct dev_ops mse_ops = {
144 { "mse", CDEV_MAJOR, 0 },
145 .d_open = mseopen,
146 .d_close = mseclose,
147 .d_read = mseread,
148 .d_ioctl = mseioctl,
149 .d_poll = msepoll,
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150};
151
38e94a25 152static void mseintr (void *);
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153static timeout_t msetimeout;
154
155/* Flags */
156#define MSESC_OPEN 0x1
157#define MSESC_WANT 0x2
158
159/* and Mouse Types */
160#define MSE_NONE 0 /* don't move this! */
161#define MSE_LOGITECH 0x1
162#define MSE_ATIINPORT 0x2
163#define MSE_LOGI_SIG 0xA5
164
165#define MSE_PORTA 0
166#define MSE_PORTB 1
167#define MSE_PORTC 2
168#define MSE_PORTD 3
169#define MSE_IOSIZE 4
170
171#define MSE_UNIT(dev) (minor(dev) >> 1)
172#define MSE_NBLOCKIO(dev) (minor(dev) & 0x1)
173
174/*
175 * Logitech bus mouse definitions
176 */
177#define MSE_SETUP 0x91 /* What does this mean? */
178 /* The definition for the control port */
179 /* is as follows: */
180
181 /* D7 = Mode set flag (1 = active) */
182 /* D6,D5 = Mode selection (port A) */
183 /* 00 = Mode 0 = Basic I/O */
184 /* 01 = Mode 1 = Strobed I/O */
185 /* 10 = Mode 2 = Bi-dir bus */
186 /* D4 = Port A direction (1 = input)*/
187 /* D3 = Port C (upper 4 bits) */
188 /* direction. (1 = input) */
189 /* D2 = Mode selection (port B & C) */
190 /* 0 = Mode 0 = Basic I/O */
191 /* 1 = Mode 1 = Strobed I/O */
192 /* D1 = Port B direction (1 = input)*/
193 /* D0 = Port C (lower 4 bits) */
194 /* direction. (1 = input) */
195
196 /* So 91 means Basic I/O on all 3 ports,*/
197 /* Port A is an input port, B is an */
198 /* output port, C is split with upper */
199 /* 4 bits being an output port and lower*/
200 /* 4 bits an input port, and enable the */
201 /* sucker. */
202 /* Courtesy Intel 8255 databook. Lars */
203#define MSE_HOLD 0x80
204#define MSE_RXLOW 0x00
205#define MSE_RXHIGH 0x20
206#define MSE_RYLOW 0x40
207#define MSE_RYHIGH 0x60
208#define MSE_DISINTR 0x10
209#define MSE_INTREN 0x00
210
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211static int mse_probelogi (device_t dev, mse_softc_t *sc);
212static void mse_disablelogi (bus_space_tag_t t,
213 bus_space_handle_t h);
214static void mse_getlogi (bus_space_tag_t t,
984263bc 215 bus_space_handle_t h,
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216 int *dx, int *dy, int *but);
217static void mse_enablelogi (bus_space_tag_t t,
218 bus_space_handle_t h);
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219
220/*
221 * ATI Inport mouse definitions
222 */
223#define MSE_INPORT_RESET 0x80
224#define MSE_INPORT_STATUS 0x00
225#define MSE_INPORT_DX 0x01
226#define MSE_INPORT_DY 0x02
227#define MSE_INPORT_MODE 0x07
228#define MSE_INPORT_HOLD 0x20
229#define MSE_INPORT_INTREN 0x09
230
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231static int mse_probeati (device_t dev, mse_softc_t *sc);
232static void mse_enableati (bus_space_tag_t t,
233 bus_space_handle_t h);
234static void mse_disableati (bus_space_tag_t t,
235 bus_space_handle_t h);
236static void mse_getati (bus_space_tag_t t,
984263bc 237 bus_space_handle_t h,
38e94a25 238 int *dx, int *dy, int *but);
984263bc 239
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240/*
241 * Table of mouse types.
242 * Keep the Logitech last, since I haven't figured out how to probe it
243 * properly yet. (Someday I'll have the documentation.)
244 */
245static struct mse_types {
246 int m_type; /* Type of bus mouse */
38e94a25 247 int (*m_probe) (device_t dev, mse_softc_t *sc);
984263bc 248 /* Probe routine to test for it */
38e94a25 249 void (*m_enable) (bus_space_tag_t t, bus_space_handle_t h);
984263bc 250 /* Start routine */
38e94a25 251 void (*m_disable) (bus_space_tag_t t, bus_space_handle_t h);
984263bc 252 /* Disable interrupts routine */
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253 void (*m_get) (bus_space_tag_t t, bus_space_handle_t h,
254 int *dx, int *dy, int *but);
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255 /* and get mouse status */
256 mousehw_t m_hw; /* buttons iftype type model hwid */
257 mousemode_t m_mode; /* proto rate res accel level size mask */
258} mse_types[] = {
259 { MSE_ATIINPORT,
260 mse_probeati, mse_enableati, mse_disableati, mse_getati,
261 { 2, MOUSE_IF_INPORT, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, },
262 { MOUSE_PROTO_INPORT, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE,
263 { MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, },
264 { MSE_LOGITECH,
265 mse_probelogi, mse_enablelogi, mse_disablelogi, mse_getlogi,
266 { 2, MOUSE_IF_BUS, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, },
267 { MOUSE_PROTO_BUS, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE,
268 { MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, },
269 { 0, },
270};
271
272static int
c436375a 273mse_probe(device_t dev)
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274{
275 mse_softc_t *sc;
276 int error;
277 int rid;
278 int i;
279
280 /* check PnP IDs */
281 error = ISA_PNP_PROBE(device_get_parent(dev), dev, mse_ids);
282 if (error == ENXIO)
283 return ENXIO;
284
285 sc = device_get_softc(dev);
286 rid = 0;
287 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
288 MSE_IOSIZE, RF_ACTIVE);
289 if (sc->sc_port == NULL)
290 return ENXIO;
291 sc->sc_iot = rman_get_bustag(sc->sc_port);
292 sc->sc_ioh = rman_get_bushandle(sc->sc_port);
293
294 /*
295 * Check for each mouse type in the table.
296 */
297 i = 0;
298 while (mse_types[i].m_type) {
299 if ((*mse_types[i].m_probe)(dev, sc)) {
300 sc->sc_mousetype = mse_types[i].m_type;
301 sc->sc_enablemouse = mse_types[i].m_enable;
302 sc->sc_disablemouse = mse_types[i].m_disable;
303 sc->sc_getmouse = mse_types[i].m_get;
304 sc->hw = mse_types[i].m_hw;
305 sc->mode = mse_types[i].m_mode;
306 bus_release_resource(dev, SYS_RES_IOPORT, rid,
307 sc->sc_port);
308 device_set_desc(dev, "Bus/InPort Mouse");
309 return 0;
310 }
311 i++;
312 }
313 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
314 return ENXIO;
315}
316
317static int
c436375a 318mse_attach(device_t dev)
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319{
320 mse_softc_t *sc;
321 int flags;
322 int unit;
323 int rid;
324
325 sc = device_get_softc(dev);
326 unit = device_get_unit(dev);
327
328 rid = 0;
329 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
330 MSE_IOSIZE, RF_ACTIVE);
331 if (sc->sc_port == NULL)
332 return ENXIO;
333 sc->sc_intr = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
334 RF_ACTIVE);
335 if (sc->sc_intr == NULL) {
336 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
337 return ENXIO;
338 }
339 sc->sc_iot = rman_get_bustag(sc->sc_port);
340 sc->sc_ioh = rman_get_bushandle(sc->sc_port);
341
342 if (BUS_SETUP_INTR(device_get_parent(dev), dev, sc->sc_intr,
ee61f228 343 0, mseintr, sc, &sc->sc_ih, NULL)) {
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344 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
345 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr);
346 return ENXIO;
347 }
348
349 flags = device_get_flags(dev);
350 sc->mode.accelfactor = (flags & MSE_CONFIG_ACCEL) >> 4;
da8ef4a8 351 callout_init(&sc->sc_callout);
984263bc 352
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353 dev_ops_add(&mse_ops, ~1, unit << 1);
354 make_dev(&mse_ops, unit << 1, 0, 0, 0600, "mse%d", unit);
355 make_dev(&mse_ops, (unit<<1)+1, 0, 0, 0600, "nmse%d", unit);
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356
357 return 0;
358}
359
360static int
c436375a 361mse_detach(device_t dev)
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362{
363 mse_softc_t *sc;
364 int rid;
365
366 sc = device_get_softc(dev);
367 if (sc->sc_flags & MSESC_OPEN)
368 return EBUSY;
369
370 rid = 0;
371 BUS_TEARDOWN_INTR(device_get_parent(dev), dev, sc->sc_intr, sc->sc_ih);
372 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr);
373 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
fef8985e 374 dev_ops_remove(&mse_ops, ~1, device_get_unit(dev) << 1);
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375
376 return 0;
377}
378
379/*
380 * Exclusive open the mouse, initialize it and enable interrupts.
381 */
382static int
fef8985e 383mseopen(struct dev_open_args *ap)
984263bc 384{
b13267a5 385 cdev_t dev = ap->a_head.a_dev;
984263bc 386 mse_softc_t *sc;
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387
388 sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
389 if (sc == NULL)
390 return (ENXIO);
391 if (sc->sc_mousetype == MSE_NONE)
392 return (ENXIO);
393 if (sc->sc_flags & MSESC_OPEN)
394 return (EBUSY);
395 sc->sc_flags |= MSESC_OPEN;
396 sc->sc_obuttons = sc->sc_buttons = MOUSE_MSC_BUTTONS;
397 sc->sc_deltax = sc->sc_deltay = 0;
398 sc->sc_bytesread = sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
399 sc->sc_watchdog = FALSE;
da8ef4a8 400 callout_reset(&sc->sc_callout, hz * 2, msetimeout, dev);
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401 sc->mode.level = 0;
402 sc->status.flags = 0;
403 sc->status.button = sc->status.obutton = 0;
404 sc->status.dx = sc->status.dy = sc->status.dz = 0;
405
406 /*
407 * Initialize mouse interface and enable interrupts.
408 */
ed2a6656 409 crit_enter();
984263bc 410 (*sc->sc_enablemouse)(sc->sc_iot, sc->sc_ioh);
ed2a6656 411 crit_exit();
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412 return (0);
413}
414
415/*
416 * mseclose: just turn off mouse innterrupts.
417 */
418static int
fef8985e 419mseclose(struct dev_close_args *ap)
984263bc 420{
b13267a5 421 cdev_t dev = ap->a_head.a_dev;
984263bc 422 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
984263bc 423
ed2a6656 424 crit_enter();
da8ef4a8 425 callout_stop(&sc->sc_callout);
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426 (*sc->sc_disablemouse)(sc->sc_iot, sc->sc_ioh);
427 sc->sc_flags &= ~MSESC_OPEN;
ed2a6656 428 crit_exit();
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429 return(0);
430}
431
432/*
433 * mseread: return mouse info using the MSC serial protocol, but without
434 * using bytes 4 and 5.
435 * (Yes this is cheesy, but it makes the X386 server happy, so...)
436 */
437static int
fef8985e 438mseread(struct dev_read_args *ap)
984263bc 439{
b13267a5 440 cdev_t dev = ap->a_head.a_dev;
fef8985e 441 struct uio *uio = ap->a_uio;
984263bc 442 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
ed2a6656 443 int xfer, error;
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444
445 /*
446 * If there are no protocol bytes to be read, set up a new protocol
447 * packet.
448 */
ed2a6656 449 crit_enter(); /* XXX Should be its own spl, but where is imlXX() */
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450 if (sc->sc_bytesread >= sc->mode.packetsize) {
451 while (sc->sc_deltax == 0 && sc->sc_deltay == 0 &&
452 (sc->sc_obuttons ^ sc->sc_buttons) == 0) {
453 if (MSE_NBLOCKIO(dev)) {
ed2a6656 454 crit_exit();
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455 return (0);
456 }
457 sc->sc_flags |= MSESC_WANT;
377d4740 458 error = tsleep((caddr_t)sc, PCATCH, "mseread", 0);
984263bc 459 if (error) {
ed2a6656 460 crit_exit();
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461 return (error);
462 }
463 }
464
465 /*
466 * Generate protocol bytes.
467 * For some reason X386 expects 5 bytes but never uses
468 * the fourth or fifth?
469 */
470 sc->sc_bytes[0] = sc->mode.syncmask[1]
471 | (sc->sc_buttons & ~sc->mode.syncmask[0]);
472 if (sc->sc_deltax > 127)
473 sc->sc_deltax = 127;
474 if (sc->sc_deltax < -127)
475 sc->sc_deltax = -127;
476 sc->sc_deltay = -sc->sc_deltay; /* Otherwise mousey goes wrong way */
477 if (sc->sc_deltay > 127)
478 sc->sc_deltay = 127;
479 if (sc->sc_deltay < -127)
480 sc->sc_deltay = -127;
481 sc->sc_bytes[1] = sc->sc_deltax;
482 sc->sc_bytes[2] = sc->sc_deltay;
483 sc->sc_bytes[3] = sc->sc_bytes[4] = 0;
484 sc->sc_bytes[5] = sc->sc_bytes[6] = 0;
485 sc->sc_bytes[7] = MOUSE_SYS_EXTBUTTONS;
486 sc->sc_obuttons = sc->sc_buttons;
487 sc->sc_deltax = sc->sc_deltay = 0;
488 sc->sc_bytesread = 0;
489 }
ed2a6656 490 crit_exit();
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491 xfer = min(uio->uio_resid, sc->mode.packetsize - sc->sc_bytesread);
492 error = uiomove(&sc->sc_bytes[sc->sc_bytesread], xfer, uio);
493 if (error)
494 return (error);
495 sc->sc_bytesread += xfer;
496 return(0);
497}
498
499/*
500 * mseioctl: process ioctl commands.
501 */
502static int
fef8985e 503mseioctl(struct dev_ioctl_args *ap)
984263bc 504{
b13267a5 505 cdev_t dev = ap->a_head.a_dev;
fef8985e 506 caddr_t addr = ap->a_data;
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507 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
508 mousestatus_t status;
509 int err = 0;
984263bc 510
fef8985e 511 switch (ap->a_cmd) {
984263bc 512 case MOUSE_GETHWINFO:
ed2a6656 513 crit_enter();
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514 *(mousehw_t *)addr = sc->hw;
515 if (sc->mode.level == 0)
516 ((mousehw_t *)addr)->model = MOUSE_MODEL_GENERIC;
ed2a6656 517 crit_exit();
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518 break;
519
520 case MOUSE_GETMODE:
ed2a6656 521 crit_enter();
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522 *(mousemode_t *)addr = sc->mode;
523 switch (sc->mode.level) {
524 case 0:
525 break;
526 case 1:
527 ((mousemode_t *)addr)->protocol = MOUSE_PROTO_SYSMOUSE;
528 ((mousemode_t *)addr)->syncmask[0] = MOUSE_SYS_SYNCMASK;
529 ((mousemode_t *)addr)->syncmask[1] = MOUSE_SYS_SYNC;
530 break;
531 }
ed2a6656 532 crit_exit();
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533 break;
534
535 case MOUSE_SETMODE:
536 switch (((mousemode_t *)addr)->level) {
537 case 0:
538 case 1:
539 break;
540 default:
541 return (EINVAL);
542 }
543 if (((mousemode_t *)addr)->accelfactor < -1)
544 return (EINVAL);
545 else if (((mousemode_t *)addr)->accelfactor >= 0)
546 sc->mode.accelfactor =
547 ((mousemode_t *)addr)->accelfactor;
548 sc->mode.level = ((mousemode_t *)addr)->level;
549 switch (sc->mode.level) {
550 case 0:
551 sc->sc_bytesread = sc->mode.packetsize
552 = MOUSE_MSC_PACKETSIZE;
553 break;
554 case 1:
555 sc->sc_bytesread = sc->mode.packetsize
556 = MOUSE_SYS_PACKETSIZE;
557 break;
558 }
559 break;
560
561 case MOUSE_GETLEVEL:
562 *(int *)addr = sc->mode.level;
563 break;
564
565 case MOUSE_SETLEVEL:
566 switch (*(int *)addr) {
567 case 0:
568 sc->mode.level = *(int *)addr;
569 sc->sc_bytesread = sc->mode.packetsize
570 = MOUSE_MSC_PACKETSIZE;
571 break;
572 case 1:
573 sc->mode.level = *(int *)addr;
574 sc->sc_bytesread = sc->mode.packetsize
575 = MOUSE_SYS_PACKETSIZE;
576 break;
577 default:
578 return (EINVAL);
579 }
580 break;
581
582 case MOUSE_GETSTATUS:
ed2a6656 583 crit_enter();
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584 status = sc->status;
585 sc->status.flags = 0;
586 sc->status.obutton = sc->status.button;
587 sc->status.button = 0;
588 sc->status.dx = 0;
589 sc->status.dy = 0;
590 sc->status.dz = 0;
ed2a6656 591 crit_exit();
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592 *(mousestatus_t *)addr = status;
593 break;
594
595 case MOUSE_READSTATE:
596 case MOUSE_READDATA:
597 return (ENODEV);
598
599#if (defined(MOUSE_GETVARS))
600 case MOUSE_GETVARS:
601 case MOUSE_SETVARS:
602 return (ENODEV);
603#endif
604
605 default:
606 return (ENOTTY);
607 }
608 return (err);
609}
610
611/*
612 * msepoll: check for mouse input to be processed.
613 */
614static int
fef8985e 615msepoll(struct dev_poll_args *ap)
984263bc 616{
b13267a5 617 cdev_t dev = ap->a_head.a_dev;
984263bc 618 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
984263bc
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619 int revents = 0;
620
ed2a6656 621 crit_enter();
fef8985e 622 if (ap->a_events & (POLLIN | POLLRDNORM)) {
984263bc
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623 if (sc->sc_bytesread != sc->mode.packetsize ||
624 sc->sc_deltax != 0 || sc->sc_deltay != 0 ||
625 (sc->sc_obuttons ^ sc->sc_buttons) != 0)
fef8985e 626 revents |= ap->a_events & (POLLIN | POLLRDNORM);
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627 else {
628 /*
629 * Since this is an exclusive open device, any previous
630 * proc pointer is trash now, so we can just assign it.
631 */
fef8985e 632 selrecord(curthread, &sc->sc_selp);
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633 }
634 }
ed2a6656 635 crit_exit();
fef8985e
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636 ap->a_events = revents;
637 return (0);
984263bc
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638}
639
640/*
641 * msetimeout: watchdog timer routine.
642 */
643static void
c436375a 644msetimeout(void *arg)
984263bc 645{
b13267a5 646 cdev_t dev;
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647 mse_softc_t *sc;
648
b13267a5 649 dev = (cdev_t)arg;
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650 sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
651 if (sc->sc_watchdog) {
652 if (bootverbose)
653 printf("mse%d: lost interrupt?\n", MSE_UNIT(dev));
654 mseintr(sc);
655 }
656 sc->sc_watchdog = TRUE;
da8ef4a8 657 callout_reset(&sc->sc_callout, hz, msetimeout, dev);
984263bc
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658}
659
660/*
661 * mseintr: update mouse status. sc_deltax and sc_deltay are accumulative.
662 */
663static void
c436375a 664mseintr(void *arg)
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665{
666 /*
667 * the table to turn MouseSystem button bits (MOUSE_MSC_BUTTON?UP)
668 * into `mousestatus' button bits (MOUSE_BUTTON?DOWN).
669 */
670 static int butmap[8] = {
671 0,
672 MOUSE_BUTTON3DOWN,
673 MOUSE_BUTTON2DOWN,
674 MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
675 MOUSE_BUTTON1DOWN,
676 MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
677 MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
678 MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
679 };
680 mse_softc_t *sc = arg;
681 int dx, dy, but;
682 int sign;
683
684#ifdef DEBUG
685 static int mse_intrcnt = 0;
686 if((mse_intrcnt++ % 10000) == 0)
687 printf("mseintr\n");
688#endif /* DEBUG */
689 if ((sc->sc_flags & MSESC_OPEN) == 0)
690 return;
691
692 (*sc->sc_getmouse)(sc->sc_iot, sc->sc_ioh, &dx, &dy, &but);
693 if (sc->mode.accelfactor > 0) {
694 sign = (dx < 0);
695 dx = dx * dx / sc->mode.accelfactor;
696 if (dx == 0)
697 dx = 1;
698 if (sign)
699 dx = -dx;
700 sign = (dy < 0);
701 dy = dy * dy / sc->mode.accelfactor;
702 if (dy == 0)
703 dy = 1;
704 if (sign)
705 dy = -dy;
706 }
707 sc->sc_deltax += dx;
708 sc->sc_deltay += dy;
709 sc->sc_buttons = but;
710
711 but = butmap[~but & MOUSE_MSC_BUTTONS];
712 sc->status.dx += dx;
713 sc->status.dy += dy;
714 sc->status.flags |= ((dx || dy) ? MOUSE_POSCHANGED : 0)
715 | (sc->status.button ^ but);
716 sc->status.button = but;
717
718 sc->sc_watchdog = FALSE;
719
720 /*
721 * If mouse state has changed, wake up anyone wanting to know.
722 */
723 if (sc->sc_deltax != 0 || sc->sc_deltay != 0 ||
724 (sc->sc_obuttons ^ sc->sc_buttons) != 0) {
725 if (sc->sc_flags & MSESC_WANT) {
726 sc->sc_flags &= ~MSESC_WANT;
727 wakeup((caddr_t)sc);
728 }
729 selwakeup(&sc->sc_selp);
730 }
731}
732
733/*
734 * Routines for the Logitech mouse.
735 */
736/*
737 * Test for a Logitech bus mouse and return 1 if it is.
738 * (until I know how to use the signature port properly, just disable
739 * interrupts and return 1)
740 */
741static int
c436375a 742mse_probelogi(device_t dev, mse_softc_t *sc)
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743{
744
745 int sig;
746
747 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTD, MSE_SETUP);
748 /* set the signature port */
749 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTB, MSE_LOGI_SIG);
750
751 DELAY(30000); /* 30 ms delay */
752 sig = bus_space_read_1(sc->sc_iot, sc->sc_ioh, MSE_PORTB) & 0xFF;
753 if (sig == MSE_LOGI_SIG) {
754 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTC,
755 MSE_DISINTR);
756 return(1);
757 } else {
758 if (bootverbose)
759 device_printf(dev, "wrong signature %x\n", sig);
760 return(0);
761 }
762}
763
764/*
765 * Initialize Logitech mouse and enable interrupts.
766 */
767static void
c436375a 768mse_enablelogi(bus_space_tag_t tag, bus_space_handle_t handle)
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769{
770 int dx, dy, but;
771
772 bus_space_write_1(tag, handle, MSE_PORTD, MSE_SETUP);
773 mse_getlogi(tag, handle, &dx, &dy, &but);
774}
775
776/*
777 * Disable interrupts for Logitech mouse.
778 */
779static void
c436375a 780mse_disablelogi(bus_space_tag_t tag, bus_space_handle_t handle)
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781{
782
783 bus_space_write_1(tag, handle, MSE_PORTC, MSE_DISINTR);
784}
785
786/*
787 * Get the current dx, dy and button up/down state.
788 */
789static void
c436375a
SW
790mse_getlogi(bus_space_tag_t tag, bus_space_handle_t handle, int *dx, int *dy,
791 int *but)
984263bc 792{
506ac56b 793 char x, y;
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794
795 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RXLOW);
796 x = bus_space_read_1(tag, handle, MSE_PORTA);
797 *but = (x >> 5) & MOUSE_MSC_BUTTONS;
798 x &= 0xf;
799 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RXHIGH);
800 x |= (bus_space_read_1(tag, handle, MSE_PORTA) << 4);
801 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RYLOW);
802 y = (bus_space_read_1(tag, handle, MSE_PORTA) & 0xf);
803 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RYHIGH);
804 y |= (bus_space_read_1(tag, handle, MSE_PORTA) << 4);
805 *dx = x;
806 *dy = y;
807 bus_space_write_1(tag, handle, MSE_PORTC, MSE_INTREN);
808}
809
810/*
811 * Routines for the ATI Inport bus mouse.
812 */
813/*
814 * Test for a ATI Inport bus mouse and return 1 if it is.
815 * (do not enable interrupts)
816 */
817static int
c436375a 818mse_probeati(device_t dev, mse_softc_t *sc)
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819{
820 int i;
821
822 for (i = 0; i < 2; i++)
823 if (bus_space_read_1(sc->sc_iot, sc->sc_ioh, MSE_PORTC) == 0xde)
824 return (1);
825 return (0);
826}
827
828/*
829 * Initialize ATI Inport mouse and enable interrupts.
830 */
831static void
c436375a 832mse_enableati(bus_space_tag_t tag, bus_space_handle_t handle)
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833{
834
835 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_RESET);
836 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
837 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_INTREN);
838}
839
840/*
841 * Disable interrupts for ATI Inport mouse.
842 */
843static void
c436375a 844mse_disableati(bus_space_tag_t tag, bus_space_handle_t handle)
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845{
846
847 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
848 bus_space_write_1(tag, handle, MSE_PORTB, 0);
849}
850
851/*
852 * Get current dx, dy and up/down button state.
853 */
854static void
c436375a
SW
855mse_getati(bus_space_tag_t tag, bus_space_handle_t handle, int *dx, int *dy,
856 int *but)
984263bc 857{
506ac56b 858 char byte;
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859
860 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
861 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_HOLD);
862 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_STATUS);
863 *but = ~bus_space_read_1(tag, handle, MSE_PORTB) & MOUSE_MSC_BUTTONS;
864 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_DX);
865 byte = bus_space_read_1(tag, handle, MSE_PORTB);
866 *dx = byte;
867 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_DY);
868 byte = bus_space_read_1(tag, handle, MSE_PORTB);
869 *dy = byte;
870 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
871 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_INTREN);
872}