1/*
2 * Copyright (c) 2000 Nick Sayer
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * spic -- the Sony Programmable I/O Controller
27 *
28 * This device exists on most recent Sony laptops. It is the means by which
29 * you can watch the Jog Dial and some other functions.
30 *
31 * At the moment, this driver merely tries to turn the jog dial into a
32 * device that moused can park on, with the intent of supplying a Z axis
33 * and mouse button out of the jog dial. I suspect that this device will
34 * end up having to support at least 2 different minor devices: One to be
35 * the jog wheel device for moused to camp out on and the other to perform
36 * all of the other miscelaneous functions of this device. But for now,
37 * the jog wheel is all you get.
38 *
39 * At the moment, the data sent back by the device is rather primitive.
40 * It sends a single character per event:
41 * u = up, d = down -- that's the jog button
42 * l = left, r = right -- that's the dial.
43 * "left" and "right" are rather caprecious. They actually represent
44 * ccw and cw, respectively
45 *
46 * What documentation exists is thanks to Andrew Tridge, and his page at
47 * http://samba.org/picturebook/ Special thanks also to Ian Dowse, who
48 * also provided sample code upon which this driver was based.
49 *
50 * $FreeBSD: head/sys/i386/isa/spic.c 111748 2003-03-02 16:54:40Z des $
51 */
52
53#include <sys/param.h>
54#include <sys/systm.h>
55#include <sys/kernel.h>
56#include <sys/bus.h>
57#include <machine/bus.h>
58#include <sys/rman.h>
59#include <machine/resource.h>
60#include <isa/isavar.h>
61#include <sys/poll.h>
62#include <machine/pci_cfgreg.h>
63#include <machine/clock.h>
64#include <sys/tty.h>
65#include <sys/conf.h>
66#include <sys/fcntl.h>
67#include <sys/malloc.h>
68#include <sys/sysctl.h>
69#include <sys/uio.h>
70
71#include <i386/isa/spicreg.h>
72
73static int spic_pollrate;
74
75SYSCTL_INT(_machdep, OID_AUTO, spic_pollrate, CTLFLAG_RW, &spic_pollrate, 0, "")
76;
77
78devclass_t spic_devclass;
79
80static d_open_t spicopen;
81static d_close_t spicclose;
82static d_read_t spicread;
83static d_ioctl_t spicioctl;
84static d_poll_t spicpoll;
85
86static struct cdevsw spic_cdevsw = {
87 /* open */ spicopen,
88 /* close */ spicclose,
89 /* read */ spicread,
90 /* write */ nowrite,
91 /* ioctl */ spicioctl,
92 /* poll */ spicpoll,
93 /* mmap */ nommap,
94 /* strategy */ nostrategy,
95 /* name */ "spic",
96 /* maj */ CDEV_MAJOR,
97 /* dump */ nodump,
98 /* psize */ nopsize,
99 /* flags */ 0,
100};
101
102#define SCBUFLEN 128
103
104struct spic_softc {
105 u_short sc_port_addr;
106 u_char sc_intr;
107 struct resource *sc_port_res,*sc_intr_res;
108 int sc_port_rid,sc_intr_rid;
109 int sc_opened;
110 int sc_sleeping;
111 int sc_buttonlast;
112 struct callout_handle sc_timeout_ch;
113 device_t sc_dev;
114 struct selinfo sc_rsel;
115 u_char sc_buf[SCBUFLEN];
116 int sc_count;
117 int sc_model;
118};
119
120static void
121write_port1(struct spic_softc *sc, u_char val)
122{
123 DELAY(10);
124 outb(sc->sc_port_addr, val);
125}
126
127static void
128write_port2(struct spic_softc *sc, u_char val)
129{
130 DELAY(10);
131 outb(sc->sc_port_addr + 4, val);
132}
133
134static u_char
135read_port1(struct spic_softc *sc)
136{
137 DELAY(10);
138 return inb(sc->sc_port_addr);
139}
140
141static u_char
142read_port2(struct spic_softc *sc)
143{
144 DELAY(10);
145 return inb(sc->sc_port_addr + 4);
146}
147
148static u_char
149read_port_cst(struct spic_softc *sc)
150{
151 DELAY(10);
152 return inb(SPIC_CST_IOPORT);
153}
154
155static void
156busy_wait(struct spic_softc *sc)
157{
158 int i=0;
159
160 while(read_port2(sc) & 2) {
161 DELAY(10);
162 if (i++>10000) {
163 printf("spic busy wait abort\n");
164 return;
165 }
166 }
167}
168
169static void
170busy_wait_cst(struct spic_softc *sc, int mask)
171{
172 int i=0;
173
174 while(read_port_cst(sc) & mask) {
175 DELAY(10);
176 if (i++>10000) {
177 printf("spic busy wait abort\n");
178 return;
179 }
180 }
181}
182
183static u_char
184spic_call1(struct spic_softc *sc, u_char dev) {
185 busy_wait(sc);
186 write_port2(sc, dev);
187 read_port2(sc);
188 return read_port1(sc);
189}
190
191static u_char
192spic_call2(struct spic_softc *sc, u_char dev, u_char fn)
193{
194 busy_wait(sc);
195 write_port2(sc, dev);
196 busy_wait(sc);
197 write_port1(sc, fn);
198 return read_port1(sc);
199}
200
201static void
202spic_ecrset(struct spic_softc *sc, u_int16_t addr, u_int16_t value)
203{
204 busy_wait_cst(sc, 3);
205 outb(SPIC_CST_IOPORT, 0x81);
206 busy_wait_cst(sc, 2);
207 outb(SPIC_DATA_IOPORT, addr);
208 busy_wait_cst(sc, 2);
209 outb(SPIC_DATA_IOPORT, value);
210 busy_wait_cst(sc, 2);
211}
212
213static void
214spic_type2_srs(struct spic_softc *sc)
215{
216 spic_ecrset(sc, SPIC_SHIB, (sc->sc_port_addr & 0xFF00) >> 8);
217 spic_ecrset(sc, SPIC_SLOB, sc->sc_port_addr & 0x00FF);
218 spic_ecrset(sc, SPIC_SIRQ, 0x00); /* using polling mode (IRQ=0)*/
219 DELAY(10);
220}
221
222static int
223spic_probe(device_t dev)
224{
225 struct spic_softc *sc;
226 u_char t, spic_irq;
227
228 sc = device_get_softc(dev);
229
230 /*
231 * We can only have 1 of these. Attempting to probe for a unit 1
232 * will destroy the work we did for unit 0
233 */
234 if (device_get_unit(dev))
235 return ENXIO;
236
237 bzero(sc, sizeof(struct spic_softc));
238
239 if (!(sc->sc_port_res = bus_alloc_resource(dev, SYS_RES_IOPORT,
240 &sc->sc_port_rid, 0, ~0, 5, RF_ACTIVE))) {
241 device_printf(dev,"Couldn't map I/O\n");
242 return ENXIO;
243 }
244 sc->sc_port_addr = (u_short)rman_get_start(sc->sc_port_res);
245
246#ifdef notyet
247 if (!(sc->sc_intr_res = bus_alloc_resource(dev, SYS_RES_IRQ,
248 &sc->sc_intr_rid, 0, ~0, 1, RF_ACTIVE))) {
249 device_printf(dev,"Couldn't map IRQ\n");
250 bus_release_resource(dev, SYS_RES_IOPORT,
251 sc->sc_port_rid, sc->sc_port_res);
252 return ENXIO;
253 }
254 sc->sc_intr = (u_short)rman_get_start(sc->sc_intr_res);
255
256 switch (sc->sc_intr) {
257 case 0: spic_irq = 3; break;
258 case 5: spic_irq = 0; break;
259 case 0xa: spic_irq = 1; break;
260 case 0xb: spic_irq = 2; break;
261 default: device_printf(dev,"Invalid IRQ\n");
262 bus_release_resource(dev, SYS_RES_IOPORT,
263 sc->sc_port_rid, sc->sc_port_res);
264 bus_release_resource(dev, SYS_RES_IRQ,
265 sc->sc_intr_rid, sc->sc_intr_res);
266 return ENXIO;
267 }
268#else
269 spic_irq = 3;
270#endif
271
272#if 0
273 if (sc->sc_port_addr != 0x10A0) {
274 bus_release_resource(dev, SYS_RES_IOPORT,
275 sc->sc_port_rid, sc->sc_port_res);
276 bus_release_resource(dev, SYS_RES_IRQ,
277 sc->sc_intr_rid, sc->sc_intr_res);
278 return ENXIO;
279 }
280#endif
281
282 /* PIIX4 chipset at least? */
283 if (pci_cfgregread(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, 0, 4) ==
284 PIIX4_DEVID) {
285 sc->sc_model = SPIC_DEVICE_MODEL_TYPE1;
286 } else {
287 /* For newer VAIOs (R505, SRX7, ...) */
288 sc->sc_model = SPIC_DEVICE_MODEL_TYPE2;
289 }
290
291 /*
292 * This is an ugly hack. It is necessary until ACPI works correctly.
293 *
294 * The SPIC consists of 2 registers. They are mapped onto I/O by the
295 * PIIX4's General Device 10 function. There is also an interrupt
296 * control port at a somewhat magic location, but this first pass is
297 * polled.
298 *
299 * So the first thing we need to do is map the G10 space in.
300 *
301 */
302
303 /* Enable ACPI mode to get Fn key events */
304 /* XXX This may slow down your VAIO if ACPI is not supported in the kernel.
305 outb(0xb2, 0xf0);
306 */
307
308 device_printf(dev,"device model type = %d\n", sc->sc_model);
309
310 if(sc->sc_model == SPIC_DEVICE_MODEL_TYPE1) {
311 pci_cfgregwrite(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10A,
312 sc->sc_port_addr, 2);
313 t = pci_cfgregread(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, 1);
314 t &= 0xf0;
315 t |= 4;
316 pci_cfgregwrite(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, t, 1);
317 outw(SPIC_IRQ_PORT, (inw(SPIC_IRQ_PORT) & ~(0x3 << SPIC_IRQ_SHIFT)) | (spic_irq << SPIC_IRQ_SHIFT));
318 t = pci_cfgregread(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, 1);
319 t &= 0x1f;
320 t |= 0xc0;
321 pci_cfgregwrite(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, t, 1);
322 } else {
323 spic_type2_srs(sc);
324 }
325
326 /*
327 * XXX: Should try and see if there's anything actually there.
328 */
329
330 device_set_desc(dev, "Sony Programmable I/O Controller");
331
332 return 0;
333}
334
335static int
336spic_attach(device_t dev)
337{
338 struct spic_softc *sc;
339
340 sc = device_get_softc(dev);
341
342 sc->sc_dev = dev;
343
344 spic_pollrate = (hz/50); /* Every 50th of a second */
345
346 spic_call1(sc, 0x82);
347 spic_call2(sc, 0x81, 0xff);
348 spic_call1(sc, 0x92);
349
350 /* There can be only one */
351 make_dev(&spic_cdevsw, 0, 0, 0, 0600, "jogdial");
352
353 return 0;
354}
355
356static void
357spictimeout(void *arg)
358{
359 struct spic_softc *sc = arg;
360 u_char b, event, param;
361 int j;
362
363 if (!sc->sc_opened) {
364 device_printf(sc->sc_dev, "timeout called while closed!\n");
365 return;
366 }
367
368 event = read_port2(sc);
369 param = read_port1(sc);
370
371 if ((event != 4) && (!(event & 0x1)))
372 switch(event) {
373 case 0x10: /* jog wheel event (type1) */
374 if (sc->sc_model == SPIC_DEVICE_MODEL_TYPE1) {
375 b = !!(param & 0x40);
376 if (b != sc->sc_buttonlast) {
377 sc->sc_buttonlast = b;
378 sc->sc_buf[sc->sc_count++] =
379 b?'d':'u';
380 }
381 j = (param & 0xf) | ((param & 0x10)? ~0xf:0);
382 if (j<0)
383 while(j++!=0) {
384 sc->sc_buf[sc->sc_count++] =
385 'l';
386 }
387 else if (j>0)
388 while(j--!=0) {
389 sc->sc_buf[sc->sc_count++] =
390 'r';
391 }
392 }
393 break;
394 case 0x08: /* jog wheel event (type2) */
395 case 0x00:
396 /* SPIC_DEVICE_MODEL_TYPE2 returns jog wheel event=0x00 */
397 if (sc->sc_model == SPIC_DEVICE_MODEL_TYPE2) {
398 b = !!(param & 0x40);
399 if (b != sc->sc_buttonlast) {
400 sc->sc_buttonlast = b;
401 sc->sc_buf[sc->sc_count++] =
402 b?'d':'u';
403 }
404 j = (param & 0xf) | ((param & 0x10)? ~0xf:0);
405 if (j<0)
406 while(j++!=0) {
407 sc->sc_buf[sc->sc_count++] =
408 'l';
409 }
410 else if (j>0)
411 while(j--!=0) {
412 sc->sc_buf[sc->sc_count++] =
413 'r';
414 }
415 }
416 break;
417 case 0x60: /* Capture button */
418 printf("Capture button event: %x\n",param);
419 break;
420 case 0x30: /* Lid switch */
421 printf("Lid switch event: %x\n",param);
422 break;
423 case 0x0c: /* We must ignore these type of event for C1VP... */
424 case 0x70: /* Closing/Opening the lid on C1VP */
425 break;
426 default:
427 printf("Unknown event: event %02x param %02x\n", event, param);
428 break;
429 }
430 else {
431 /* No event. Wait some more */
432 sc->sc_timeout_ch = timeout(spictimeout, sc, spic_pollrate);
433 return;
434 }
435
436 if (sc->sc_count) {
437 if (sc->sc_sleeping) {
438 sc->sc_sleeping = 0;
439 wakeup( sc);
440 }
441 selwakeup(&sc->sc_rsel);
442 }
443 spic_call2(sc, 0x81, 0xff); /* Clear event */
444
445 sc->sc_timeout_ch = timeout(spictimeout, sc, spic_pollrate);
446}
447
448static int
449spicopen(dev_t dev, int flag, int fmt, struct thread *td)
450{
451 struct spic_softc *sc;
452
453 sc = devclass_get_softc(spic_devclass, 0);
454
455 if (sc->sc_opened)
456 return EBUSY;
457
458 sc->sc_opened++;
459 sc->sc_count=0;
460
461 /* Start the polling */
462 timeout(spictimeout, sc, spic_pollrate);
463 return 0;
464}
465
466static int
467spicclose(dev_t dev, int flag, int fmt, struct thread *td)
468{
469 struct spic_softc *sc;
470
471 sc = devclass_get_softc(spic_devclass, 0);
472
473 /* Stop polling */
474 untimeout(spictimeout, sc, sc->sc_timeout_ch);
475 sc->sc_opened = 0;
476 return 0;
477}
478
479static int
480spicread(dev_t dev, struct uio *uio, int flag)
481{
482 struct spic_softc *sc;
483 int l, s, error;
484 u_char buf[SCBUFLEN];
485
486 sc = devclass_get_softc(spic_devclass, 0);
487
488 if (uio->uio_resid <= 0) /* What kind of a read is this?! */
489 return 0;
490
491 s = spltty();
492 while (!(sc->sc_count)) {
493 sc->sc_sleeping=1;
494 error = tsleep( sc, PZERO | PCATCH, "jogrea", 0);
495 sc->sc_sleeping=0;
496 if (error) {
497 splx(s);
498 return error;
499 }
500 }
501 splx(s);
502
503 s = spltty();
504 l = min(uio->uio_resid, sc->sc_count);
505 bcopy(sc->sc_buf, buf, l);
506 sc->sc_count -= l;
507 bcopy(sc->sc_buf + l, sc->sc_buf, l);
508 splx(s);
509 return uiomove(buf, l, uio);
510
511}
512
513static int
514spicioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
515{
516 struct spic_softc *sc;
517
518 sc = devclass_get_softc(spic_devclass, 0);
519
520 return EIO;
521}
522
523static int
524spicpoll(dev_t dev, int events, struct thread *td)
525{
526 struct spic_softc *sc;
527 int revents = 0, s;
528
529 sc = devclass_get_softc(spic_devclass, 0);
530 s = spltty();
531 if (events & (POLLIN | POLLRDNORM)) {
532 if (sc->sc_count)
533 revents |= events & (POLLIN | POLLRDNORM);
534 else
535 selrecord(td, &sc->sc_rsel); /* Who shall we wake? */
536 }
537 splx(s);
538
539 return revents;
540}
541
542
543static device_method_t spic_methods[] = {
544 DEVMETHOD(device_probe, spic_probe),
545 DEVMETHOD(device_attach, spic_attach),
546
547 { 0, 0 }
548};
549
550static driver_t spic_driver = {
551 "spic",
552 spic_methods,
553 sizeof(struct spic_softc),
554};
555
556DRIVER_MODULE(spic, isa, spic_driver, spic_devclass, 0, 0);
557
2 * Copyright (c) 2000 Nick Sayer
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * spic -- the Sony Programmable I/O Controller
27 *
28 * This device exists on most recent Sony laptops. It is the means by which
29 * you can watch the Jog Dial and some other functions.
30 *
31 * At the moment, this driver merely tries to turn the jog dial into a
32 * device that moused can park on, with the intent of supplying a Z axis
33 * and mouse button out of the jog dial. I suspect that this device will
34 * end up having to support at least 2 different minor devices: One to be
35 * the jog wheel device for moused to camp out on and the other to perform
36 * all of the other miscelaneous functions of this device. But for now,
37 * the jog wheel is all you get.
38 *
39 * At the moment, the data sent back by the device is rather primitive.
40 * It sends a single character per event:
41 * u = up, d = down -- that's the jog button
42 * l = left, r = right -- that's the dial.
43 * "left" and "right" are rather caprecious. They actually represent
44 * ccw and cw, respectively
45 *
46 * What documentation exists is thanks to Andrew Tridge, and his page at
47 * http://samba.org/picturebook/ Special thanks also to Ian Dowse, who
48 * also provided sample code upon which this driver was based.
49 *
50 * $FreeBSD: head/sys/i386/isa/spic.c 111748 2003-03-02 16:54:40Z des $
51 */
52
53#include <sys/param.h>
54#include <sys/systm.h>
55#include <sys/kernel.h>
56#include <sys/bus.h>
57#include <machine/bus.h>
58#include <sys/rman.h>
59#include <machine/resource.h>
60#include <isa/isavar.h>
61#include <sys/poll.h>
62#include <machine/pci_cfgreg.h>
63#include <machine/clock.h>
64#include <sys/tty.h>
65#include <sys/conf.h>
66#include <sys/fcntl.h>
67#include <sys/malloc.h>
68#include <sys/sysctl.h>
69#include <sys/uio.h>
70
71#include <i386/isa/spicreg.h>
72
73static int spic_pollrate;
74
75SYSCTL_INT(_machdep, OID_AUTO, spic_pollrate, CTLFLAG_RW, &spic_pollrate, 0, "")
76;
77
78devclass_t spic_devclass;
79
80static d_open_t spicopen;
81static d_close_t spicclose;
82static d_read_t spicread;
83static d_ioctl_t spicioctl;
84static d_poll_t spicpoll;
85
86static struct cdevsw spic_cdevsw = {
87 /* open */ spicopen,
88 /* close */ spicclose,
89 /* read */ spicread,
90 /* write */ nowrite,
91 /* ioctl */ spicioctl,
92 /* poll */ spicpoll,
93 /* mmap */ nommap,
94 /* strategy */ nostrategy,
95 /* name */ "spic",
96 /* maj */ CDEV_MAJOR,
97 /* dump */ nodump,
98 /* psize */ nopsize,
99 /* flags */ 0,
100};
101
102#define SCBUFLEN 128
103
104struct spic_softc {
105 u_short sc_port_addr;
106 u_char sc_intr;
107 struct resource *sc_port_res,*sc_intr_res;
108 int sc_port_rid,sc_intr_rid;
109 int sc_opened;
110 int sc_sleeping;
111 int sc_buttonlast;
112 struct callout_handle sc_timeout_ch;
113 device_t sc_dev;
114 struct selinfo sc_rsel;
115 u_char sc_buf[SCBUFLEN];
116 int sc_count;
117 int sc_model;
118};
119
120static void
121write_port1(struct spic_softc *sc, u_char val)
122{
123 DELAY(10);
124 outb(sc->sc_port_addr, val);
125}
126
127static void
128write_port2(struct spic_softc *sc, u_char val)
129{
130 DELAY(10);
131 outb(sc->sc_port_addr + 4, val);
132}
133
134static u_char
135read_port1(struct spic_softc *sc)
136{
137 DELAY(10);
138 return inb(sc->sc_port_addr);
139}
140
141static u_char
142read_port2(struct spic_softc *sc)
143{
144 DELAY(10);
145 return inb(sc->sc_port_addr + 4);
146}
147
148static u_char
149read_port_cst(struct spic_softc *sc)
150{
151 DELAY(10);
152 return inb(SPIC_CST_IOPORT);
153}
154
155static void
156busy_wait(struct spic_softc *sc)
157{
158 int i=0;
159
160 while(read_port2(sc) & 2) {
161 DELAY(10);
162 if (i++>10000) {
163 printf("spic busy wait abort\n");
164 return;
165 }
166 }
167}
168
169static void
170busy_wait_cst(struct spic_softc *sc, int mask)
171{
172 int i=0;
173
174 while(read_port_cst(sc) & mask) {
175 DELAY(10);
176 if (i++>10000) {
177 printf("spic busy wait abort\n");
178 return;
179 }
180 }
181}
182
183static u_char
184spic_call1(struct spic_softc *sc, u_char dev) {
185 busy_wait(sc);
186 write_port2(sc, dev);
187 read_port2(sc);
188 return read_port1(sc);
189}
190
191static u_char
192spic_call2(struct spic_softc *sc, u_char dev, u_char fn)
193{
194 busy_wait(sc);
195 write_port2(sc, dev);
196 busy_wait(sc);
197 write_port1(sc, fn);
198 return read_port1(sc);
199}
200
201static void
202spic_ecrset(struct spic_softc *sc, u_int16_t addr, u_int16_t value)
203{
204 busy_wait_cst(sc, 3);
205 outb(SPIC_CST_IOPORT, 0x81);
206 busy_wait_cst(sc, 2);
207 outb(SPIC_DATA_IOPORT, addr);
208 busy_wait_cst(sc, 2);
209 outb(SPIC_DATA_IOPORT, value);
210 busy_wait_cst(sc, 2);
211}
212
213static void
214spic_type2_srs(struct spic_softc *sc)
215{
216 spic_ecrset(sc, SPIC_SHIB, (sc->sc_port_addr & 0xFF00) >> 8);
217 spic_ecrset(sc, SPIC_SLOB, sc->sc_port_addr & 0x00FF);
218 spic_ecrset(sc, SPIC_SIRQ, 0x00); /* using polling mode (IRQ=0)*/
219 DELAY(10);
220}
221
222static int
223spic_probe(device_t dev)
224{
225 struct spic_softc *sc;
226 u_char t, spic_irq;
227
228 sc = device_get_softc(dev);
229
230 /*
231 * We can only have 1 of these. Attempting to probe for a unit 1
232 * will destroy the work we did for unit 0
233 */
234 if (device_get_unit(dev))
235 return ENXIO;
236
237 bzero(sc, sizeof(struct spic_softc));
238
239 if (!(sc->sc_port_res = bus_alloc_resource(dev, SYS_RES_IOPORT,
240 &sc->sc_port_rid, 0, ~0, 5, RF_ACTIVE))) {
241 device_printf(dev,"Couldn't map I/O\n");
242 return ENXIO;
243 }
244 sc->sc_port_addr = (u_short)rman_get_start(sc->sc_port_res);
245
246#ifdef notyet
247 if (!(sc->sc_intr_res = bus_alloc_resource(dev, SYS_RES_IRQ,
248 &sc->sc_intr_rid, 0, ~0, 1, RF_ACTIVE))) {
249 device_printf(dev,"Couldn't map IRQ\n");
250 bus_release_resource(dev, SYS_RES_IOPORT,
251 sc->sc_port_rid, sc->sc_port_res);
252 return ENXIO;
253 }
254 sc->sc_intr = (u_short)rman_get_start(sc->sc_intr_res);
255
256 switch (sc->sc_intr) {
257 case 0: spic_irq = 3; break;
258 case 5: spic_irq = 0; break;
259 case 0xa: spic_irq = 1; break;
260 case 0xb: spic_irq = 2; break;
261 default: device_printf(dev,"Invalid IRQ\n");
262 bus_release_resource(dev, SYS_RES_IOPORT,
263 sc->sc_port_rid, sc->sc_port_res);
264 bus_release_resource(dev, SYS_RES_IRQ,
265 sc->sc_intr_rid, sc->sc_intr_res);
266 return ENXIO;
267 }
268#else
269 spic_irq = 3;
270#endif
271
272#if 0
273 if (sc->sc_port_addr != 0x10A0) {
274 bus_release_resource(dev, SYS_RES_IOPORT,
275 sc->sc_port_rid, sc->sc_port_res);
276 bus_release_resource(dev, SYS_RES_IRQ,
277 sc->sc_intr_rid, sc->sc_intr_res);
278 return ENXIO;
279 }
280#endif
281
282 /* PIIX4 chipset at least? */
283 if (pci_cfgregread(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, 0, 4) ==
284 PIIX4_DEVID) {
285 sc->sc_model = SPIC_DEVICE_MODEL_TYPE1;
286 } else {
287 /* For newer VAIOs (R505, SRX7, ...) */
288 sc->sc_model = SPIC_DEVICE_MODEL_TYPE2;
289 }
290
291 /*
292 * This is an ugly hack. It is necessary until ACPI works correctly.
293 *
294 * The SPIC consists of 2 registers. They are mapped onto I/O by the
295 * PIIX4's General Device 10 function. There is also an interrupt
296 * control port at a somewhat magic location, but this first pass is
297 * polled.
298 *
299 * So the first thing we need to do is map the G10 space in.
300 *
301 */
302
303 /* Enable ACPI mode to get Fn key events */
304 /* XXX This may slow down your VAIO if ACPI is not supported in the kernel.
305 outb(0xb2, 0xf0);
306 */
307
308 device_printf(dev,"device model type = %d\n", sc->sc_model);
309
310 if(sc->sc_model == SPIC_DEVICE_MODEL_TYPE1) {
311 pci_cfgregwrite(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10A,
312 sc->sc_port_addr, 2);
313 t = pci_cfgregread(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, 1);
314 t &= 0xf0;
315 t |= 4;
316 pci_cfgregwrite(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, t, 1);
317 outw(SPIC_IRQ_PORT, (inw(SPIC_IRQ_PORT) & ~(0x3 << SPIC_IRQ_SHIFT)) | (spic_irq << SPIC_IRQ_SHIFT));
318 t = pci_cfgregread(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, 1);
319 t &= 0x1f;
320 t |= 0xc0;
321 pci_cfgregwrite(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, t, 1);
322 } else {
323 spic_type2_srs(sc);
324 }
325
326 /*
327 * XXX: Should try and see if there's anything actually there.
328 */
329
330 device_set_desc(dev, "Sony Programmable I/O Controller");
331
332 return 0;
333}
334
335static int
336spic_attach(device_t dev)
337{
338 struct spic_softc *sc;
339
340 sc = device_get_softc(dev);
341
342 sc->sc_dev = dev;
343
344 spic_pollrate = (hz/50); /* Every 50th of a second */
345
346 spic_call1(sc, 0x82);
347 spic_call2(sc, 0x81, 0xff);
348 spic_call1(sc, 0x92);
349
350 /* There can be only one */
351 make_dev(&spic_cdevsw, 0, 0, 0, 0600, "jogdial");
352
353 return 0;
354}
355
356static void
357spictimeout(void *arg)
358{
359 struct spic_softc *sc = arg;
360 u_char b, event, param;
361 int j;
362
363 if (!sc->sc_opened) {
364 device_printf(sc->sc_dev, "timeout called while closed!\n");
365 return;
366 }
367
368 event = read_port2(sc);
369 param = read_port1(sc);
370
371 if ((event != 4) && (!(event & 0x1)))
372 switch(event) {
373 case 0x10: /* jog wheel event (type1) */
374 if (sc->sc_model == SPIC_DEVICE_MODEL_TYPE1) {
375 b = !!(param & 0x40);
376 if (b != sc->sc_buttonlast) {
377 sc->sc_buttonlast = b;
378 sc->sc_buf[sc->sc_count++] =
379 b?'d':'u';
380 }
381 j = (param & 0xf) | ((param & 0x10)? ~0xf:0);
382 if (j<0)
383 while(j++!=0) {
384 sc->sc_buf[sc->sc_count++] =
385 'l';
386 }
387 else if (j>0)
388 while(j--!=0) {
389 sc->sc_buf[sc->sc_count++] =
390 'r';
391 }
392 }
393 break;
394 case 0x08: /* jog wheel event (type2) */
395 case 0x00:
396 /* SPIC_DEVICE_MODEL_TYPE2 returns jog wheel event=0x00 */
397 if (sc->sc_model == SPIC_DEVICE_MODEL_TYPE2) {
398 b = !!(param & 0x40);
399 if (b != sc->sc_buttonlast) {
400 sc->sc_buttonlast = b;
401 sc->sc_buf[sc->sc_count++] =
402 b?'d':'u';
403 }
404 j = (param & 0xf) | ((param & 0x10)? ~0xf:0);
405 if (j<0)
406 while(j++!=0) {
407 sc->sc_buf[sc->sc_count++] =
408 'l';
409 }
410 else if (j>0)
411 while(j--!=0) {
412 sc->sc_buf[sc->sc_count++] =
413 'r';
414 }
415 }
416 break;
417 case 0x60: /* Capture button */
418 printf("Capture button event: %x\n",param);
419 break;
420 case 0x30: /* Lid switch */
421 printf("Lid switch event: %x\n",param);
422 break;
423 case 0x0c: /* We must ignore these type of event for C1VP... */
424 case 0x70: /* Closing/Opening the lid on C1VP */
425 break;
426 default:
427 printf("Unknown event: event %02x param %02x\n", event, param);
428 break;
429 }
430 else {
431 /* No event. Wait some more */
432 sc->sc_timeout_ch = timeout(spictimeout, sc, spic_pollrate);
433 return;
434 }
435
436 if (sc->sc_count) {
437 if (sc->sc_sleeping) {
438 sc->sc_sleeping = 0;
439 wakeup( sc);
440 }
441 selwakeup(&sc->sc_rsel);
442 }
443 spic_call2(sc, 0x81, 0xff); /* Clear event */
444
445 sc->sc_timeout_ch = timeout(spictimeout, sc, spic_pollrate);
446}
447
448static int
449spicopen(dev_t dev, int flag, int fmt, struct thread *td)
450{
451 struct spic_softc *sc;
452
453 sc = devclass_get_softc(spic_devclass, 0);
454
455 if (sc->sc_opened)
456 return EBUSY;
457
458 sc->sc_opened++;
459 sc->sc_count=0;
460
461 /* Start the polling */
462 timeout(spictimeout, sc, spic_pollrate);
463 return 0;
464}
465
466static int
467spicclose(dev_t dev, int flag, int fmt, struct thread *td)
468{
469 struct spic_softc *sc;
470
471 sc = devclass_get_softc(spic_devclass, 0);
472
473 /* Stop polling */
474 untimeout(spictimeout, sc, sc->sc_timeout_ch);
475 sc->sc_opened = 0;
476 return 0;
477}
478
479static int
480spicread(dev_t dev, struct uio *uio, int flag)
481{
482 struct spic_softc *sc;
483 int l, s, error;
484 u_char buf[SCBUFLEN];
485
486 sc = devclass_get_softc(spic_devclass, 0);
487
488 if (uio->uio_resid <= 0) /* What kind of a read is this?! */
489 return 0;
490
491 s = spltty();
492 while (!(sc->sc_count)) {
493 sc->sc_sleeping=1;
494 error = tsleep( sc, PZERO | PCATCH, "jogrea", 0);
495 sc->sc_sleeping=0;
496 if (error) {
497 splx(s);
498 return error;
499 }
500 }
501 splx(s);
502
503 s = spltty();
504 l = min(uio->uio_resid, sc->sc_count);
505 bcopy(sc->sc_buf, buf, l);
506 sc->sc_count -= l;
507 bcopy(sc->sc_buf + l, sc->sc_buf, l);
508 splx(s);
509 return uiomove(buf, l, uio);
510
511}
512
513static int
514spicioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
515{
516 struct spic_softc *sc;
517
518 sc = devclass_get_softc(spic_devclass, 0);
519
520 return EIO;
521}
522
523static int
524spicpoll(dev_t dev, int events, struct thread *td)
525{
526 struct spic_softc *sc;
527 int revents = 0, s;
528
529 sc = devclass_get_softc(spic_devclass, 0);
530 s = spltty();
531 if (events & (POLLIN | POLLRDNORM)) {
532 if (sc->sc_count)
533 revents |= events & (POLLIN | POLLRDNORM);
534 else
535 selrecord(td, &sc->sc_rsel); /* Who shall we wake? */
536 }
537 splx(s);
538
539 return revents;
540}
541
542
543static device_method_t spic_methods[] = {
544 DEVMETHOD(device_probe, spic_probe),
545 DEVMETHOD(device_attach, spic_attach),
546
547 { 0, 0 }
548};
549
550static driver_t spic_driver = {
551 "spic",
552 spic_methods,
553 sizeof(struct spic_softc),
554};
555
556DRIVER_MODULE(spic, isa, spic_driver, spic_devclass, 0, 0);
557