AMD64 - Refactor uio_resid and size_t assumptions.
[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 $
e3869ec7 15 * $DragonFly: src/sys/dev/misc/mse/mse.c,v 1.20 2006/12/22 23:26:17 swildner 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>
984263bc 56#include <sys/uio.h>
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57#include <sys/rman.h>
58#include <sys/thread2.h>
984263bc 59
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60#include <machine/clock.h>
61#include <machine/mouse.h>
984263bc 62
1f2de5d4 63#include <bus/isa/isavar.h>
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64
65/* driver configuration flags (config) */
66#define MSE_CONFIG_ACCEL 0x00f0 /* acceleration factor */
67#define MSE_CONFIG_FLAGS (MSE_CONFIG_ACCEL)
68
69/*
70 * Software control structure for mouse. The sc_enablemouse(),
71 * sc_disablemouse() and sc_getmouse() routines must be called spl'd().
72 */
73typedef struct mse_softc {
74 int sc_flags;
75 int sc_mousetype;
76 struct selinfo sc_selp;
77 struct resource *sc_port;
78 struct resource *sc_intr;
79 bus_space_tag_t sc_iot;
80 bus_space_handle_t sc_ioh;
81 void *sc_ih;
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82 void (*sc_enablemouse) (bus_space_tag_t t,
83 bus_space_handle_t h);
84 void (*sc_disablemouse) (bus_space_tag_t t,
85 bus_space_handle_t h);
86 void (*sc_getmouse) (bus_space_tag_t t,
984263bc 87 bus_space_handle_t h,
38e94a25 88 int *dx, int *dy, int *but);
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89 int sc_deltax;
90 int sc_deltay;
91 int sc_obuttons;
92 int sc_buttons;
93 int sc_bytesread;
94 u_char sc_bytes[MOUSE_SYS_PACKETSIZE];
da8ef4a8 95 struct callout sc_callout;
984263bc 96 int sc_watchdog;
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97 mousehw_t hw;
98 mousemode_t mode;
99 mousestatus_t status;
100} mse_softc_t;
101
102static devclass_t mse_devclass;
103
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104static int mse_probe (device_t dev);
105static int mse_attach (device_t dev);
106static int mse_detach (device_t dev);
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107
108static device_method_t mse_methods[] = {
109 DEVMETHOD(device_probe, mse_probe),
110 DEVMETHOD(device_attach, mse_attach),
111 DEVMETHOD(device_detach, mse_detach),
112 { 0, 0 }
113};
114
115static driver_t mse_driver = {
116 "mse",
117 mse_methods,
118 sizeof(mse_softc_t),
119};
120
121DRIVER_MODULE(mse, isa, mse_driver, mse_devclass, 0, 0);
122
123static struct isa_pnp_id mse_ids[] = {
124 { 0x000fd041, "Bus mouse" }, /* PNP0F00 */
125 { 0x020fd041, "InPort mouse" }, /* PNP0F02 */
126 { 0x0d0fd041, "InPort mouse compatible" }, /* PNP0F0D */
127 { 0x110fd041, "Bus mouse compatible" }, /* PNP0F11 */
128 { 0x150fd041, "Logitech bus mouse" }, /* PNP0F15 */
129 { 0x180fd041, "Logitech bus mouse compatible" },/* PNP0F18 */
130 { 0 }
131};
132
133static d_open_t mseopen;
134static d_close_t mseclose;
135static d_read_t mseread;
136static d_ioctl_t mseioctl;
137static d_poll_t msepoll;
138
139#define CDEV_MAJOR 27
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140static struct dev_ops mse_ops = {
141 { "mse", CDEV_MAJOR, 0 },
142 .d_open = mseopen,
143 .d_close = mseclose,
144 .d_read = mseread,
145 .d_ioctl = mseioctl,
146 .d_poll = msepoll,
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147};
148
38e94a25 149static void mseintr (void *);
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150static timeout_t msetimeout;
151
152/* Flags */
153#define MSESC_OPEN 0x1
154#define MSESC_WANT 0x2
155
156/* and Mouse Types */
157#define MSE_NONE 0 /* don't move this! */
158#define MSE_LOGITECH 0x1
159#define MSE_ATIINPORT 0x2
160#define MSE_LOGI_SIG 0xA5
161
162#define MSE_PORTA 0
163#define MSE_PORTB 1
164#define MSE_PORTC 2
165#define MSE_PORTD 3
166#define MSE_IOSIZE 4
167
168#define MSE_UNIT(dev) (minor(dev) >> 1)
169#define MSE_NBLOCKIO(dev) (minor(dev) & 0x1)
170
171/*
172 * Logitech bus mouse definitions
173 */
174#define MSE_SETUP 0x91 /* What does this mean? */
175 /* The definition for the control port */
176 /* is as follows: */
177
178 /* D7 = Mode set flag (1 = active) */
179 /* D6,D5 = Mode selection (port A) */
180 /* 00 = Mode 0 = Basic I/O */
181 /* 01 = Mode 1 = Strobed I/O */
182 /* 10 = Mode 2 = Bi-dir bus */
183 /* D4 = Port A direction (1 = input)*/
184 /* D3 = Port C (upper 4 bits) */
185 /* direction. (1 = input) */
186 /* D2 = Mode selection (port B & C) */
187 /* 0 = Mode 0 = Basic I/O */
188 /* 1 = Mode 1 = Strobed I/O */
189 /* D1 = Port B direction (1 = input)*/
190 /* D0 = Port C (lower 4 bits) */
191 /* direction. (1 = input) */
192
193 /* So 91 means Basic I/O on all 3 ports,*/
194 /* Port A is an input port, B is an */
195 /* output port, C is split with upper */
196 /* 4 bits being an output port and lower*/
197 /* 4 bits an input port, and enable the */
198 /* sucker. */
199 /* Courtesy Intel 8255 databook. Lars */
200#define MSE_HOLD 0x80
201#define MSE_RXLOW 0x00
202#define MSE_RXHIGH 0x20
203#define MSE_RYLOW 0x40
204#define MSE_RYHIGH 0x60
205#define MSE_DISINTR 0x10
206#define MSE_INTREN 0x00
207
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208static int mse_probelogi (device_t dev, mse_softc_t *sc);
209static void mse_disablelogi (bus_space_tag_t t,
210 bus_space_handle_t h);
211static void mse_getlogi (bus_space_tag_t t,
984263bc 212 bus_space_handle_t h,
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213 int *dx, int *dy, int *but);
214static void mse_enablelogi (bus_space_tag_t t,
215 bus_space_handle_t h);
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216
217/*
218 * ATI Inport mouse definitions
219 */
220#define MSE_INPORT_RESET 0x80
221#define MSE_INPORT_STATUS 0x00
222#define MSE_INPORT_DX 0x01
223#define MSE_INPORT_DY 0x02
224#define MSE_INPORT_MODE 0x07
225#define MSE_INPORT_HOLD 0x20
226#define MSE_INPORT_INTREN 0x09
227
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228static int mse_probeati (device_t dev, mse_softc_t *sc);
229static void mse_enableati (bus_space_tag_t t,
230 bus_space_handle_t h);
231static void mse_disableati (bus_space_tag_t t,
232 bus_space_handle_t h);
233static void mse_getati (bus_space_tag_t t,
984263bc 234 bus_space_handle_t h,
38e94a25 235 int *dx, int *dy, int *but);
984263bc 236
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237/*
238 * Table of mouse types.
239 * Keep the Logitech last, since I haven't figured out how to probe it
240 * properly yet. (Someday I'll have the documentation.)
241 */
242static struct mse_types {
243 int m_type; /* Type of bus mouse */
38e94a25 244 int (*m_probe) (device_t dev, mse_softc_t *sc);
984263bc 245 /* Probe routine to test for it */
38e94a25 246 void (*m_enable) (bus_space_tag_t t, bus_space_handle_t h);
984263bc 247 /* Start routine */
38e94a25 248 void (*m_disable) (bus_space_tag_t t, bus_space_handle_t h);
984263bc 249 /* Disable interrupts routine */
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250 void (*m_get) (bus_space_tag_t t, bus_space_handle_t h,
251 int *dx, int *dy, int *but);
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252 /* and get mouse status */
253 mousehw_t m_hw; /* buttons iftype type model hwid */
254 mousemode_t m_mode; /* proto rate res accel level size mask */
255} mse_types[] = {
256 { MSE_ATIINPORT,
257 mse_probeati, mse_enableati, mse_disableati, mse_getati,
258 { 2, MOUSE_IF_INPORT, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, },
259 { MOUSE_PROTO_INPORT, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE,
260 { MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, },
261 { MSE_LOGITECH,
262 mse_probelogi, mse_enablelogi, mse_disablelogi, mse_getlogi,
263 { 2, MOUSE_IF_BUS, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, },
264 { MOUSE_PROTO_BUS, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE,
265 { MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, },
266 { 0, },
267};
268
269static int
c436375a 270mse_probe(device_t dev)
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271{
272 mse_softc_t *sc;
273 int error;
274 int rid;
275 int i;
276
277 /* check PnP IDs */
278 error = ISA_PNP_PROBE(device_get_parent(dev), dev, mse_ids);
279 if (error == ENXIO)
280 return ENXIO;
281
282 sc = device_get_softc(dev);
283 rid = 0;
284 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
285 MSE_IOSIZE, RF_ACTIVE);
286 if (sc->sc_port == NULL)
287 return ENXIO;
288 sc->sc_iot = rman_get_bustag(sc->sc_port);
289 sc->sc_ioh = rman_get_bushandle(sc->sc_port);
290
291 /*
292 * Check for each mouse type in the table.
293 */
294 i = 0;
295 while (mse_types[i].m_type) {
296 if ((*mse_types[i].m_probe)(dev, sc)) {
297 sc->sc_mousetype = mse_types[i].m_type;
298 sc->sc_enablemouse = mse_types[i].m_enable;
299 sc->sc_disablemouse = mse_types[i].m_disable;
300 sc->sc_getmouse = mse_types[i].m_get;
301 sc->hw = mse_types[i].m_hw;
302 sc->mode = mse_types[i].m_mode;
303 bus_release_resource(dev, SYS_RES_IOPORT, rid,
304 sc->sc_port);
305 device_set_desc(dev, "Bus/InPort Mouse");
306 return 0;
307 }
308 i++;
309 }
310 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
311 return ENXIO;
312}
313
314static int
c436375a 315mse_attach(device_t dev)
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316{
317 mse_softc_t *sc;
318 int flags;
319 int unit;
320 int rid;
321
322 sc = device_get_softc(dev);
323 unit = device_get_unit(dev);
324
325 rid = 0;
326 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
327 MSE_IOSIZE, RF_ACTIVE);
328 if (sc->sc_port == NULL)
329 return ENXIO;
330 sc->sc_intr = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
331 RF_ACTIVE);
332 if (sc->sc_intr == NULL) {
333 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
334 return ENXIO;
335 }
336 sc->sc_iot = rman_get_bustag(sc->sc_port);
337 sc->sc_ioh = rman_get_bushandle(sc->sc_port);
338
339 if (BUS_SETUP_INTR(device_get_parent(dev), dev, sc->sc_intr,
ee61f228 340 0, mseintr, sc, &sc->sc_ih, NULL)) {
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341 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
342 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr);
343 return ENXIO;
344 }
345
346 flags = device_get_flags(dev);
347 sc->mode.accelfactor = (flags & MSE_CONFIG_ACCEL) >> 4;
da8ef4a8 348 callout_init(&sc->sc_callout);
984263bc 349
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350 make_dev(&mse_ops, unit << 1, 0, 0, 0600, "mse%d", unit);
351 make_dev(&mse_ops, (unit<<1)+1, 0, 0, 0600, "nmse%d", unit);
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352
353 return 0;
354}
355
356static int
c436375a 357mse_detach(device_t dev)
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358{
359 mse_softc_t *sc;
360 int rid;
361
362 sc = device_get_softc(dev);
363 if (sc->sc_flags & MSESC_OPEN)
364 return EBUSY;
365
366 rid = 0;
367 BUS_TEARDOWN_INTR(device_get_parent(dev), dev, sc->sc_intr, sc->sc_ih);
368 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr);
369 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
cd29885a 370 dev_ops_remove_minor(&mse_ops, device_get_unit(dev) << 1);
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371
372 return 0;
373}
374
375/*
376 * Exclusive open the mouse, initialize it and enable interrupts.
377 */
378static int
fef8985e 379mseopen(struct dev_open_args *ap)
984263bc 380{
b13267a5 381 cdev_t dev = ap->a_head.a_dev;
984263bc 382 mse_softc_t *sc;
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383
384 sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
385 if (sc == NULL)
386 return (ENXIO);
387 if (sc->sc_mousetype == MSE_NONE)
388 return (ENXIO);
389 if (sc->sc_flags & MSESC_OPEN)
390 return (EBUSY);
391 sc->sc_flags |= MSESC_OPEN;
392 sc->sc_obuttons = sc->sc_buttons = MOUSE_MSC_BUTTONS;
393 sc->sc_deltax = sc->sc_deltay = 0;
394 sc->sc_bytesread = sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
395 sc->sc_watchdog = FALSE;
da8ef4a8 396 callout_reset(&sc->sc_callout, hz * 2, msetimeout, dev);
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397 sc->mode.level = 0;
398 sc->status.flags = 0;
399 sc->status.button = sc->status.obutton = 0;
400 sc->status.dx = sc->status.dy = sc->status.dz = 0;
401
402 /*
403 * Initialize mouse interface and enable interrupts.
404 */
ed2a6656 405 crit_enter();
984263bc 406 (*sc->sc_enablemouse)(sc->sc_iot, sc->sc_ioh);
ed2a6656 407 crit_exit();
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408 return (0);
409}
410
411/*
412 * mseclose: just turn off mouse innterrupts.
413 */
414static int
fef8985e 415mseclose(struct dev_close_args *ap)
984263bc 416{
b13267a5 417 cdev_t dev = ap->a_head.a_dev;
984263bc 418 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
984263bc 419
ed2a6656 420 crit_enter();
da8ef4a8 421 callout_stop(&sc->sc_callout);
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422 (*sc->sc_disablemouse)(sc->sc_iot, sc->sc_ioh);
423 sc->sc_flags &= ~MSESC_OPEN;
ed2a6656 424 crit_exit();
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425 return(0);
426}
427
428/*
429 * mseread: return mouse info using the MSC serial protocol, but without
430 * using bytes 4 and 5.
431 * (Yes this is cheesy, but it makes the X386 server happy, so...)
432 */
433static int
fef8985e 434mseread(struct dev_read_args *ap)
984263bc 435{
b13267a5 436 cdev_t dev = ap->a_head.a_dev;
fef8985e 437 struct uio *uio = ap->a_uio;
984263bc 438 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
ed2a6656 439 int xfer, error;
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440
441 /*
442 * If there are no protocol bytes to be read, set up a new protocol
443 * packet.
444 */
ed2a6656 445 crit_enter(); /* XXX Should be its own spl, but where is imlXX() */
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446 if (sc->sc_bytesread >= sc->mode.packetsize) {
447 while (sc->sc_deltax == 0 && sc->sc_deltay == 0 &&
448 (sc->sc_obuttons ^ sc->sc_buttons) == 0) {
449 if (MSE_NBLOCKIO(dev)) {
ed2a6656 450 crit_exit();
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451 return (0);
452 }
453 sc->sc_flags |= MSESC_WANT;
377d4740 454 error = tsleep((caddr_t)sc, PCATCH, "mseread", 0);
984263bc 455 if (error) {
ed2a6656 456 crit_exit();
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457 return (error);
458 }
459 }
460
461 /*
462 * Generate protocol bytes.
463 * For some reason X386 expects 5 bytes but never uses
464 * the fourth or fifth?
465 */
466 sc->sc_bytes[0] = sc->mode.syncmask[1]
467 | (sc->sc_buttons & ~sc->mode.syncmask[0]);
468 if (sc->sc_deltax > 127)
469 sc->sc_deltax = 127;
470 if (sc->sc_deltax < -127)
471 sc->sc_deltax = -127;
472 sc->sc_deltay = -sc->sc_deltay; /* Otherwise mousey goes wrong way */
473 if (sc->sc_deltay > 127)
474 sc->sc_deltay = 127;
475 if (sc->sc_deltay < -127)
476 sc->sc_deltay = -127;
477 sc->sc_bytes[1] = sc->sc_deltax;
478 sc->sc_bytes[2] = sc->sc_deltay;
479 sc->sc_bytes[3] = sc->sc_bytes[4] = 0;
480 sc->sc_bytes[5] = sc->sc_bytes[6] = 0;
481 sc->sc_bytes[7] = MOUSE_SYS_EXTBUTTONS;
482 sc->sc_obuttons = sc->sc_buttons;
483 sc->sc_deltax = sc->sc_deltay = 0;
484 sc->sc_bytesread = 0;
485 }
ed2a6656 486 crit_exit();
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487 xfer = (int)szmin(uio->uio_resid,
488 sc->mode.packetsize - sc->sc_bytesread);
489 error = uiomove(&sc->sc_bytes[sc->sc_bytesread], (size_t)xfer, uio);
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490 if (error)
491 return (error);
492 sc->sc_bytesread += xfer;
493 return(0);
494}
495
496/*
497 * mseioctl: process ioctl commands.
498 */
499static int
fef8985e 500mseioctl(struct dev_ioctl_args *ap)
984263bc 501{
b13267a5 502 cdev_t dev = ap->a_head.a_dev;
fef8985e 503 caddr_t addr = ap->a_data;
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504 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
505 mousestatus_t status;
506 int err = 0;
984263bc 507
fef8985e 508 switch (ap->a_cmd) {
984263bc 509 case MOUSE_GETHWINFO:
ed2a6656 510 crit_enter();
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511 *(mousehw_t *)addr = sc->hw;
512 if (sc->mode.level == 0)
513 ((mousehw_t *)addr)->model = MOUSE_MODEL_GENERIC;
ed2a6656 514 crit_exit();
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515 break;
516
517 case MOUSE_GETMODE:
ed2a6656 518 crit_enter();
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519 *(mousemode_t *)addr = sc->mode;
520 switch (sc->mode.level) {
521 case 0:
522 break;
523 case 1:
524 ((mousemode_t *)addr)->protocol = MOUSE_PROTO_SYSMOUSE;
525 ((mousemode_t *)addr)->syncmask[0] = MOUSE_SYS_SYNCMASK;
526 ((mousemode_t *)addr)->syncmask[1] = MOUSE_SYS_SYNC;
527 break;
528 }
ed2a6656 529 crit_exit();
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530 break;
531
532 case MOUSE_SETMODE:
533 switch (((mousemode_t *)addr)->level) {
534 case 0:
535 case 1:
536 break;
537 default:
538 return (EINVAL);
539 }
540 if (((mousemode_t *)addr)->accelfactor < -1)
541 return (EINVAL);
542 else if (((mousemode_t *)addr)->accelfactor >= 0)
543 sc->mode.accelfactor =
544 ((mousemode_t *)addr)->accelfactor;
545 sc->mode.level = ((mousemode_t *)addr)->level;
546 switch (sc->mode.level) {
547 case 0:
548 sc->sc_bytesread = sc->mode.packetsize
549 = MOUSE_MSC_PACKETSIZE;
550 break;
551 case 1:
552 sc->sc_bytesread = sc->mode.packetsize
553 = MOUSE_SYS_PACKETSIZE;
554 break;
555 }
556 break;
557
558 case MOUSE_GETLEVEL:
559 *(int *)addr = sc->mode.level;
560 break;
561
562 case MOUSE_SETLEVEL:
563 switch (*(int *)addr) {
564 case 0:
565 sc->mode.level = *(int *)addr;
566 sc->sc_bytesread = sc->mode.packetsize
567 = MOUSE_MSC_PACKETSIZE;
568 break;
569 case 1:
570 sc->mode.level = *(int *)addr;
571 sc->sc_bytesread = sc->mode.packetsize
572 = MOUSE_SYS_PACKETSIZE;
573 break;
574 default:
575 return (EINVAL);
576 }
577 break;
578
579 case MOUSE_GETSTATUS:
ed2a6656 580 crit_enter();
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581 status = sc->status;
582 sc->status.flags = 0;
583 sc->status.obutton = sc->status.button;
584 sc->status.button = 0;
585 sc->status.dx = 0;
586 sc->status.dy = 0;
587 sc->status.dz = 0;
ed2a6656 588 crit_exit();
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589 *(mousestatus_t *)addr = status;
590 break;
591
592 case MOUSE_READSTATE:
593 case MOUSE_READDATA:
594 return (ENODEV);
595
596#if (defined(MOUSE_GETVARS))
597 case MOUSE_GETVARS:
598 case MOUSE_SETVARS:
599 return (ENODEV);
600#endif
601
602 default:
603 return (ENOTTY);
604 }
605 return (err);
606}
607
608/*
609 * msepoll: check for mouse input to be processed.
610 */
611static int
fef8985e 612msepoll(struct dev_poll_args *ap)
984263bc 613{
b13267a5 614 cdev_t dev = ap->a_head.a_dev;
984263bc 615 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
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616 int revents = 0;
617
ed2a6656 618 crit_enter();
fef8985e 619 if (ap->a_events & (POLLIN | POLLRDNORM)) {
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620 if (sc->sc_bytesread != sc->mode.packetsize ||
621 sc->sc_deltax != 0 || sc->sc_deltay != 0 ||
622 (sc->sc_obuttons ^ sc->sc_buttons) != 0)
fef8985e 623 revents |= ap->a_events & (POLLIN | POLLRDNORM);
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624 else {
625 /*
626 * Since this is an exclusive open device, any previous
627 * proc pointer is trash now, so we can just assign it.
628 */
fef8985e 629 selrecord(curthread, &sc->sc_selp);
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630 }
631 }
ed2a6656 632 crit_exit();
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633 ap->a_events = revents;
634 return (0);
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635}
636
637/*
638 * msetimeout: watchdog timer routine.
639 */
640static void
c436375a 641msetimeout(void *arg)
984263bc 642{
b13267a5 643 cdev_t dev;
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644 mse_softc_t *sc;
645
b13267a5 646 dev = (cdev_t)arg;
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647 sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
648 if (sc->sc_watchdog) {
649 if (bootverbose)
e3869ec7 650 kprintf("mse%d: lost interrupt?\n", MSE_UNIT(dev));
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651 mseintr(sc);
652 }
653 sc->sc_watchdog = TRUE;
da8ef4a8 654 callout_reset(&sc->sc_callout, hz, msetimeout, dev);
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655}
656
657/*
658 * mseintr: update mouse status. sc_deltax and sc_deltay are accumulative.
659 */
660static void
c436375a 661mseintr(void *arg)
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662{
663 /*
664 * the table to turn MouseSystem button bits (MOUSE_MSC_BUTTON?UP)
665 * into `mousestatus' button bits (MOUSE_BUTTON?DOWN).
666 */
667 static int butmap[8] = {
668 0,
669 MOUSE_BUTTON3DOWN,
670 MOUSE_BUTTON2DOWN,
671 MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
672 MOUSE_BUTTON1DOWN,
673 MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
674 MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
675 MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
676 };
677 mse_softc_t *sc = arg;
678 int dx, dy, but;
679 int sign;
680
681#ifdef DEBUG
682 static int mse_intrcnt = 0;
683 if((mse_intrcnt++ % 10000) == 0)
e3869ec7 684 kprintf("mseintr\n");
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685#endif /* DEBUG */
686 if ((sc->sc_flags & MSESC_OPEN) == 0)
687 return;
688
689 (*sc->sc_getmouse)(sc->sc_iot, sc->sc_ioh, &dx, &dy, &but);
690 if (sc->mode.accelfactor > 0) {
691 sign = (dx < 0);
692 dx = dx * dx / sc->mode.accelfactor;
693 if (dx == 0)
694 dx = 1;
695 if (sign)
696 dx = -dx;
697 sign = (dy < 0);
698 dy = dy * dy / sc->mode.accelfactor;
699 if (dy == 0)
700 dy = 1;
701 if (sign)
702 dy = -dy;
703 }
704 sc->sc_deltax += dx;
705 sc->sc_deltay += dy;
706 sc->sc_buttons = but;
707
708 but = butmap[~but & MOUSE_MSC_BUTTONS];
709 sc->status.dx += dx;
710 sc->status.dy += dy;
711 sc->status.flags |= ((dx || dy) ? MOUSE_POSCHANGED : 0)
712 | (sc->status.button ^ but);
713 sc->status.button = but;
714
715 sc->sc_watchdog = FALSE;
716
717 /*
718 * If mouse state has changed, wake up anyone wanting to know.
719 */
720 if (sc->sc_deltax != 0 || sc->sc_deltay != 0 ||
721 (sc->sc_obuttons ^ sc->sc_buttons) != 0) {
722 if (sc->sc_flags & MSESC_WANT) {
723 sc->sc_flags &= ~MSESC_WANT;
724 wakeup((caddr_t)sc);
725 }
726 selwakeup(&sc->sc_selp);
727 }
728}
729
730/*
731 * Routines for the Logitech mouse.
732 */
733/*
734 * Test for a Logitech bus mouse and return 1 if it is.
735 * (until I know how to use the signature port properly, just disable
736 * interrupts and return 1)
737 */
738static int
c436375a 739mse_probelogi(device_t dev, mse_softc_t *sc)
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740{
741
742 int sig;
743
744 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTD, MSE_SETUP);
745 /* set the signature port */
746 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTB, MSE_LOGI_SIG);
747
748 DELAY(30000); /* 30 ms delay */
749 sig = bus_space_read_1(sc->sc_iot, sc->sc_ioh, MSE_PORTB) & 0xFF;
750 if (sig == MSE_LOGI_SIG) {
751 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTC,
752 MSE_DISINTR);
753 return(1);
754 } else {
755 if (bootverbose)
756 device_printf(dev, "wrong signature %x\n", sig);
757 return(0);
758 }
759}
760
761/*
762 * Initialize Logitech mouse and enable interrupts.
763 */
764static void
c436375a 765mse_enablelogi(bus_space_tag_t tag, bus_space_handle_t handle)
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766{
767 int dx, dy, but;
768
769 bus_space_write_1(tag, handle, MSE_PORTD, MSE_SETUP);
770 mse_getlogi(tag, handle, &dx, &dy, &but);
771}
772
773/*
774 * Disable interrupts for Logitech mouse.
775 */
776static void
c436375a 777mse_disablelogi(bus_space_tag_t tag, bus_space_handle_t handle)
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778{
779
780 bus_space_write_1(tag, handle, MSE_PORTC, MSE_DISINTR);
781}
782
783/*
784 * Get the current dx, dy and button up/down state.
785 */
786static void
c436375a
SW
787mse_getlogi(bus_space_tag_t tag, bus_space_handle_t handle, int *dx, int *dy,
788 int *but)
984263bc 789{
506ac56b 790 char x, y;
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791
792 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RXLOW);
793 x = bus_space_read_1(tag, handle, MSE_PORTA);
794 *but = (x >> 5) & MOUSE_MSC_BUTTONS;
795 x &= 0xf;
796 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RXHIGH);
797 x |= (bus_space_read_1(tag, handle, MSE_PORTA) << 4);
798 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RYLOW);
799 y = (bus_space_read_1(tag, handle, MSE_PORTA) & 0xf);
800 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RYHIGH);
801 y |= (bus_space_read_1(tag, handle, MSE_PORTA) << 4);
802 *dx = x;
803 *dy = y;
804 bus_space_write_1(tag, handle, MSE_PORTC, MSE_INTREN);
805}
806
807/*
808 * Routines for the ATI Inport bus mouse.
809 */
810/*
811 * Test for a ATI Inport bus mouse and return 1 if it is.
812 * (do not enable interrupts)
813 */
814static int
c436375a 815mse_probeati(device_t dev, mse_softc_t *sc)
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816{
817 int i;
818
819 for (i = 0; i < 2; i++)
820 if (bus_space_read_1(sc->sc_iot, sc->sc_ioh, MSE_PORTC) == 0xde)
821 return (1);
822 return (0);
823}
824
825/*
826 * Initialize ATI Inport mouse and enable interrupts.
827 */
828static void
c436375a 829mse_enableati(bus_space_tag_t tag, bus_space_handle_t handle)
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830{
831
832 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_RESET);
833 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
834 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_INTREN);
835}
836
837/*
838 * Disable interrupts for ATI Inport mouse.
839 */
840static void
c436375a 841mse_disableati(bus_space_tag_t tag, bus_space_handle_t handle)
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842{
843
844 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
845 bus_space_write_1(tag, handle, MSE_PORTB, 0);
846}
847
848/*
849 * Get current dx, dy and up/down button state.
850 */
851static void
c436375a
SW
852mse_getati(bus_space_tag_t tag, bus_space_handle_t handle, int *dx, int *dy,
853 int *but)
984263bc 854{
506ac56b 855 char byte;
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856
857 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
858 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_HOLD);
859 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_STATUS);
860 *but = ~bus_space_read_1(tag, handle, MSE_PORTB) & MOUSE_MSC_BUTTONS;
861 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_DX);
862 byte = bus_space_read_1(tag, handle, MSE_PORTB);
863 *dx = byte;
864 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_DY);
865 byte = bus_space_read_1(tag, handle, MSE_PORTB);
866 *dy = byte;
867 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
868 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_INTREN);
869}