Annotation of sys/arch/hp300/dev/topcat.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: topcat.c,v 1.15 2006/08/11 18:33:13 miod Exp $ */
2:
3: /*
4: * Copyright (c) 2005, Miodrag Vallat.
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: *
16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26: * POSSIBILITY OF SUCH DAMAGE.
27: *
28: */
29: /*
30: * Copyright (c) 1996 Jason R. Thorpe. All rights reserved.
31: * Copyright (c) 1988 University of Utah.
32: * Copyright (c) 1990, 1993
33: * The Regents of the University of California. All rights reserved.
34: *
35: * This code is derived from software contributed to Berkeley by
36: * the Systems Programming Group of the University of Utah Computer
37: * Science Department.
38: *
39: * Redistribution and use in source and binary forms, with or without
40: * modification, are permitted provided that the following conditions
41: * are met:
42: * 1. Redistributions of source code must retain the above copyright
43: * notice, this list of conditions and the following disclaimer.
44: * 2. Redistributions in binary form must reproduce the above copyright
45: * notice, this list of conditions and the following disclaimer in the
46: * documentation and/or other materials provided with the distribution.
47: * 3. Neither the name of the University nor the names of its contributors
48: * may be used to endorse or promote products derived from this software
49: * without specific prior written permission.
50: *
51: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
52: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
53: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
54: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
55: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
56: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
57: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
58: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
59: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
60: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
61: * SUCH DAMAGE.
62: *
63: * from: Utah $Hdr: grf_tc.c 1.20 93/08/13$
64: *
65: * @(#)grf_tc.c 8.4 (Berkeley) 1/12/94
66: */
67:
68: /*
69: * Graphics routines for TOPCAT, CATSEYE and KATHMANDU frame buffers
70: */
71:
72: #include <sys/param.h>
73: #include <sys/systm.h>
74: #include <sys/conf.h>
75: #include <sys/device.h>
76: #include <sys/proc.h>
77: #include <sys/ioctl.h>
78:
79: #include <machine/autoconf.h>
80: #include <machine/bus.h>
81: #include <machine/cpu.h>
82:
83: #include <hp300/dev/dioreg.h>
84: #include <hp300/dev/diovar.h>
85: #include <hp300/dev/diodevs.h>
86: #include <hp300/dev/intiovar.h>
87:
88: #include <dev/wscons/wsconsio.h>
89: #include <dev/wscons/wsdisplayvar.h>
90: #include <dev/rasops/rasops.h>
91:
92: #include <hp300/dev/diofbreg.h>
93: #include <hp300/dev/diofbvar.h>
94: #include <hp300/dev/topcatreg.h>
95:
96: struct topcat_softc {
97: struct device sc_dev;
98: struct diofb *sc_fb;
99: struct diofb sc_fb_store;
100: int sc_scode;
101: };
102:
103: int topcat_dio_match(struct device *, void *, void *);
104: void topcat_dio_attach(struct device *, struct device *, void *);
105: int topcat_intio_match(struct device *, void *, void *);
106: void topcat_intio_attach(struct device *, struct device *, void *);
107:
108: struct cfattach topcat_dio_ca = {
109: sizeof(struct topcat_softc), topcat_dio_match, topcat_dio_attach
110: };
111:
112: struct cfattach topcat_intio_ca = {
113: sizeof(struct topcat_softc), topcat_intio_match, topcat_intio_attach
114: };
115:
116: struct cfdriver topcat_cd = {
117: NULL, "topcat", DV_DULL
118: };
119:
120: void topcat_end_attach(struct topcat_softc *, u_int8_t);
121: int topcat_reset(struct diofb *, int, struct diofbreg *);
122: void topcat_restore(struct diofb *);
123: int topcat_setcmap(struct diofb *, struct wsdisplay_cmap *);
124: void topcat_setcolor(struct diofb *, u_int);
125: int topcat_windowmove(struct diofb *, u_int16_t, u_int16_t, u_int16_t,
126: u_int16_t, u_int16_t, u_int16_t, int16_t, int16_t);
127:
128: int topcat_ioctl(void *, u_long, caddr_t, int, struct proc *);
129: void topcat_burner(void *, u_int, u_int);
130:
131: struct wsdisplay_accessops topcat_accessops = {
132: topcat_ioctl,
133: diofb_mmap,
134: diofb_alloc_screen,
135: diofb_free_screen,
136: diofb_show_screen,
137: NULL, /* load_font */
138: NULL, /* scrollback */
139: NULL, /* getchar */
140: topcat_burner
141: };
142:
143: /*
144: * Attachment glue
145: */
146:
147: int
148: topcat_intio_match(struct device *parent, void *match, void *aux)
149: {
150: struct intio_attach_args *ia = aux;
151: struct diofbreg *fbr;
152:
153: fbr = (struct diofbreg *)IIOV(GRFIADDR);
154:
155: if (badaddr((caddr_t)fbr))
156: return (0);
157:
158: if (fbr->id == GRFHWID) {
159: switch (fbr->fbid) {
160: case GID_TOPCAT:
161: case GID_LRCATSEYE:
162: case GID_HRCCATSEYE:
163: case GID_HRMCATSEYE:
164: #if 0
165: case GID_XXXCATSEYE:
166: #endif
167: ia->ia_addr = (caddr_t)GRFIADDR;
168: return (1);
169: }
170: }
171:
172: return (0);
173: }
174:
175: void
176: topcat_intio_attach(struct device *parent, struct device *self, void *aux)
177: {
178: struct topcat_softc *sc = (struct topcat_softc *)self;
179: struct diofbreg *fbr;
180:
181: fbr = (struct diofbreg *)IIOV(GRFIADDR);
182: sc->sc_scode = CONSCODE_INTERNAL;
183:
184: if (sc->sc_scode == conscode) {
185: sc->sc_fb = &diofb_cn;
186: } else {
187: sc->sc_fb = &sc->sc_fb_store;
188: topcat_reset(sc->sc_fb, sc->sc_scode, fbr);
189: }
190:
191: topcat_end_attach(sc, fbr->fbid);
192: }
193:
194: int
195: topcat_dio_match(struct device *parent, void *match, void *aux)
196: {
197: struct dio_attach_args *da = aux;
198:
199: if (da->da_id == DIO_DEVICE_ID_FRAMEBUFFER) {
200: switch (da->da_secid) {
201: case DIO_DEVICE_SECID_TOPCAT:
202: case DIO_DEVICE_SECID_LRCATSEYE:
203: case DIO_DEVICE_SECID_HRCCATSEYE:
204: case DIO_DEVICE_SECID_HRMCATSEYE:
205: #if 0
206: case DIO_DEVICE_SECID_XXXCATSEYE:
207: #endif
208: return (1);
209: }
210: }
211:
212: return (0);
213: }
214:
215: void
216: topcat_dio_attach(struct device *parent, struct device *self, void *aux)
217: {
218: struct topcat_softc *sc = (struct topcat_softc *)self;
219: struct dio_attach_args *da = aux;
220: struct diofbreg *fbr;
221:
222: sc->sc_scode = da->da_scode;
223: if (sc->sc_scode == conscode) {
224: fbr = (struct diofbreg *)conaddr; /* already mapped */
225: sc->sc_fb = &diofb_cn;
226: } else {
227: sc->sc_fb = &sc->sc_fb_store;
228: fbr = (struct diofbreg *)
229: iomap(dio_scodetopa(sc->sc_scode), da->da_size);
230: if (fbr == NULL ||
231: topcat_reset(sc->sc_fb, sc->sc_scode, fbr) != 0) {
232: printf(": can't map framebuffer\n");
233: return;
234: }
235: }
236:
237: topcat_end_attach(sc, fbr->fbid);
238: }
239:
240: void
241: topcat_end_attach(struct topcat_softc *sc, u_int8_t id)
242: {
243: const char *fbname = "unknown";
244:
245: switch (id) {
246: case GID_TOPCAT:
247: switch (sc->sc_fb->planes) {
248: case 1:
249: fbname = "HP98544 topcat";
250: break;
251: case 4:
252: if (sc->sc_fb->dheight == 400)
253: fbname = "HP98543 topcat";
254: else
255: fbname = "HP98545 topcat";
256: break;
257: case 6:
258: fbname = "HP98547 topcat";
259: break;
260: }
261: break;
262: case GID_HRCCATSEYE:
263: fbname = "HP98550 catseye"; /* also A1416 kathmandu */
264: break;
265: case GID_LRCATSEYE:
266: fbname = "HP98549 catseye";
267: break;
268: case GID_HRMCATSEYE:
269: fbname = "HP98548 catseye";
270: break;
271: }
272:
273: diofb_end_attach(sc, &topcat_accessops, sc->sc_fb,
274: sc->sc_scode == conscode, fbname);
275: }
276:
277: /*
278: * Initialize hardware and display routines.
279: */
280: int
281: topcat_reset(struct diofb *fb, int scode, struct diofbreg *fbr)
282: {
283: volatile struct tcboxfb *tc = (struct tcboxfb *)fbr;
284: int rc;
285: u_int i;
286:
287: if ((rc = diofb_fbinquire(fb, scode, fbr)) != 0)
288: return (rc);
289:
290: /*
291: * If we could not get a valid number of planes, determine it
292: * by writing to the first frame buffer display location,
293: * then reading it back.
294: */
295: if (fb->planes == 0) {
296: volatile u_int8_t *fbp;
297: u_int8_t save;
298:
299: fbp = (u_int8_t *)fb->fbkva;
300: tc->fben = ~0;
301: tc->wen = ~0;
302: tc->ren = ~0;
303: tc->prr = RR_COPY;
304: save = *fbp;
305: *fbp = 0xff;
306: fb->planemask = *fbp;
307: *fbp = save;
308:
309: for (fb->planes = 1; fb->planemask >= (1 << fb->planes);
310: fb->planes++);
311: if (fb->planes > 8)
312: fb->planes = 8;
313: fb->planemask = (1 << fb->planes) - 1;
314: }
315:
316: fb->bmv = topcat_windowmove;
317: topcat_restore(fb);
318: diofb_fbsetup(fb);
319: for (i = 0; i <= fb->planemask; i++)
320: topcat_setcolor(fb, i);
321:
322: return (0);
323: }
324:
325: void
326: topcat_restore(struct diofb *fb)
327: {
328: volatile struct tcboxfb *tc = (struct tcboxfb *)fb->regkva;
329:
330: /*
331: * Catseye looks a lot like a topcat, but not completely.
332: * So, we set some bits to make it work.
333: */
334: if (tc->regs.fbid != GID_TOPCAT) {
335: while ((tc->catseye_status & 1))
336: ;
337: tc->catseye_status = 0x0;
338: tc->vb_select = 0x0;
339: tc->tcntrl = 0x0;
340: tc->acntrl = 0x0;
341: tc->pncntrl = 0x0;
342: tc->rug_cmdstat = 0x90;
343: }
344:
345: /*
346: * Enable reading/writing of all the planes.
347: */
348: tc->fben = fb->planemask;
349: tc->wen = fb->planemask;
350: tc->ren = fb->planemask;
351: tc->prr = RR_COPY;
352:
353: /* Enable display */
354: tc->nblank = 0xff;
355: }
356:
357: int
358: topcat_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
359: {
360: struct diofb *fb = v;
361: struct wsdisplay_fbinfo *wdf;
362: u_int i;
363:
364: switch (cmd) {
365: case WSDISPLAYIO_GTYPE:
366: *(u_int *)data = WSDISPLAY_TYPE_TOPCAT;
367: break;
368: case WSDISPLAYIO_SMODE:
369: fb->mapmode = *(u_int *)data;
370: if (fb->mapmode == WSDISPLAYIO_MODE_EMUL) {
371: topcat_restore(fb);
372: for (i = 0; i <= fb->planemask; i++)
373: topcat_setcolor(fb, i);
374: }
375: break;
376: case WSDISPLAYIO_GINFO:
377: wdf = (void *)data;
378: wdf->width = fb->ri.ri_width;
379: wdf->height = fb->ri.ri_height;
380: wdf->depth = fb->ri.ri_depth;
381: wdf->cmsize = 1 << fb->planes;
382: break;
383: case WSDISPLAYIO_LINEBYTES:
384: *(u_int *)data = fb->ri.ri_stride;
385: break;
386: case WSDISPLAYIO_GETCMAP:
387: return (diofb_getcmap(fb, (struct wsdisplay_cmap *)data));
388: case WSDISPLAYIO_PUTCMAP:
389: return (topcat_setcmap(fb, (struct wsdisplay_cmap *)data));
390: case WSDISPLAYIO_GVIDEO:
391: case WSDISPLAYIO_SVIDEO:
392: break;
393: default:
394: return (-1);
395: }
396:
397: return (0);
398: }
399:
400: void
401: topcat_burner(void *v, u_int on, u_int flags)
402: {
403: struct diofb *fb = v;
404: volatile struct tcboxfb *tc = (struct tcboxfb *)fb->regkva;
405:
406: if (on) {
407: tc->nblank = 0xff;
408: } else {
409: tc->nblank = 0;
410: }
411: }
412:
413: void
414: topcat_setcolor(struct diofb *fb, u_int index)
415: {
416: volatile struct tcboxfb *tc = (struct tcboxfb *)fb->regkva;
417:
418: if (tc->regs.fbid != GID_TOPCAT) {
419: tccm_waitbusy(tc);
420: tc->plane_mask = 0xff;
421: tc->cindex = ~index;
422: tc->rdata = fb->cmap.r[index];
423: tc->gdata = fb->cmap.g[index];
424: tc->bdata = fb->cmap.b[index];
425: tc->strobe = 0xff;
426:
427: tccm_waitbusy(tc);
428: tc->cindex = 0;
429: } else {
430: tccm_waitbusy(tc);
431: tc->plane_mask = 0xff;
432: tc->rdata = fb->cmap.r[index];
433: tc->gdata = fb->cmap.g[index];
434: tc->bdata = fb->cmap.b[index];
435: tc->cindex = ~index;
436: tc->strobe = 0xff;
437:
438: tccm_waitbusy(tc);
439: tc->rdata = 0;
440: tc->gdata = 0;
441: tc->bdata = 0;
442: tc->cindex = 0;
443: }
444: }
445:
446: int
447: topcat_setcmap(struct diofb *fb, struct wsdisplay_cmap *cm)
448: {
449: u_int8_t r[256], g[256], b[256];
450: u_int index = cm->index, count = cm->count;
451: u_int colcount = 1 << fb->planes;
452: int error;
453:
454: if (index >= colcount || count > colcount - index)
455: return (EINVAL);
456:
457: if ((error = copyin(cm->red, r, count)) != 0)
458: return (error);
459: if ((error = copyin(cm->green, g, count)) != 0)
460: return (error);
461: if ((error = copyin(cm->blue, b, count)) != 0)
462: return (error);
463:
464: bcopy(r, fb->cmap.r + index, count);
465: bcopy(g, fb->cmap.g + index, count);
466: bcopy(b, fb->cmap.b + index, count);
467:
468: while (count-- != 0)
469: topcat_setcolor(fb, index++);
470:
471: return (0);
472: }
473:
474: /*
475: * Accelerated routines
476: */
477:
478: int
479: topcat_windowmove(struct diofb *fb, u_int16_t sx, u_int16_t sy,
480: u_int16_t dx, u_int16_t dy, u_int16_t cx, u_int16_t cy, int16_t rop,
481: int16_t planemask)
482: {
483: volatile struct tcboxfb *tc = (struct tcboxfb *)fb->regkva;
484:
485: tc_waitbusy(tc, fb->planemask);
486:
487: tc->wen = planemask;
488: tc->wmrr = rop;
489: if (planemask != 0xff) {
490: tc->wen = planemask ^ 0xff;
491: tc->wmrr = rop ^ 0x0f;
492: tc->wen = fb->planemask;
493: }
494: tc->source_y = sy;
495: tc->source_x = sx;
496: tc->dest_y = dy;
497: tc->dest_x = dx;
498: tc->wheight = cy;
499: tc->wwidth = cx;
500: tc->wmove = fb->planemask;
501:
502: tc_waitbusy(tc, fb->planemask);
503:
504: return (0);
505: }
506:
507: /*
508: * Topcat/catseye console support
509: */
510:
511: void
512: topcatcninit()
513: {
514: topcat_reset(&diofb_cn, conscode, (struct diofbreg *)conaddr);
515: diofb_cnattach(&diofb_cn);
516: }
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