Annotation of sys/arch/hp300/dev/gbox.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: gbox.c,v 1.15 2007/01/07 15:13:52 miod Exp $ */
2:
3: /*
4: * Copyright (c) 2005, Miodrag Vallat
5: *
6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
9: * 1. Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
11: * 2. Redistributions in binary form must reproduce the above copyright
12: * notice, this list of conditions and the following disclaimer in the
13: * documentation and/or other materials provided with the distribution.
14: *
15: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
19: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
23: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25: * POSSIBILITY OF SUCH DAMAGE.
26: */
27: /*
28: * Copyright (c) 1996 Jason R. Thorpe. All rights reserved.
29: * Copyright (c) 1988 University of Utah.
30: * Copyright (c) 1990, 1993
31: * The Regents of the University of California. All rights reserved.
32: *
33: * This code is derived from software contributed to Berkeley by
34: * the Systems Programming Group of the University of Utah Computer
35: * Science Department.
36: *
37: * Redistribution and use in source and binary forms, with or without
38: * modification, are permitted provided that the following conditions
39: * are met:
40: * 1. Redistributions of source code must retain the above copyright
41: * notice, this list of conditions and the following disclaimer.
42: * 2. Redistributions in binary form must reproduce the above copyright
43: * notice, this list of conditions and the following disclaimer in the
44: * documentation and/or other materials provided with the distribution.
45: * 3. Neither the name of the University nor the names of its contributors
46: * may be used to endorse or promote products derived from this software
47: * without specific prior written permission.
48: *
49: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59: * SUCH DAMAGE.
60: *
61: * from: Utah $Hdr: grf_gb.c 1.18 93/08/13$
62: *
63: * @(#)grf_gb.c 8.4 (Berkeley) 1/12/94
64: */
65:
66: /*
67: * Graphics routines for the Gatorbox.
68: *
69: * Note: In the context of this system, "gator" and "gatorbox" both refer to
70: * HP 987x0 graphics systems. "Gator" is not used for high res mono.
71: * (as in 9837 Gator systems)
72: */
73:
74: #include <sys/param.h>
75: #include <sys/systm.h>
76: #include <sys/conf.h>
77: #include <sys/device.h>
78: #include <sys/proc.h>
79: #include <sys/ioctl.h>
80:
81: #include <machine/autoconf.h>
82: #include <machine/bus.h>
83: #include <machine/cpu.h>
84:
85: #include <hp300/dev/dioreg.h>
86: #include <hp300/dev/diovar.h>
87: #include <hp300/dev/diodevs.h>
88: #include <hp300/dev/intiovar.h>
89:
90: #include <dev/wscons/wsconsio.h>
91: #include <dev/wscons/wsdisplayvar.h>
92: #include <dev/rasops/rasops.h>
93:
94: #include <hp300/dev/diofbreg.h>
95: #include <hp300/dev/diofbvar.h>
96: #include <hp300/dev/gboxreg.h>
97:
98: struct gbox_softc {
99: struct device sc_dev;
100: struct diofb *sc_fb;
101: struct diofb sc_fb_store;
102: int sc_scode;
103: };
104:
105: int gbox_dio_match(struct device *, void *, void *);
106: void gbox_dio_attach(struct device *, struct device *, void *);
107: int gbox_intio_match(struct device *, void *, void *);
108: void gbox_intio_attach(struct device *, struct device *, void *);
109:
110: struct cfattach gbox_dio_ca = {
111: sizeof(struct gbox_softc), gbox_dio_match, gbox_dio_attach
112: };
113:
114: struct cfattach gbox_intio_ca = {
115: sizeof(struct gbox_softc), gbox_intio_match, gbox_intio_attach
116: };
117:
118: struct cfdriver gbox_cd = {
119: NULL, "gbox", DV_DULL
120: };
121:
122: int gbox_reset(struct diofb *, int, struct diofbreg *);
123: void gbox_restore(struct diofb *);
124: int gbox_setcmap(struct diofb *, struct wsdisplay_cmap *);
125: void gbox_setcolor(struct diofb *, u_int);
126: int gbox_windowmove(struct diofb *, u_int16_t, u_int16_t, u_int16_t,
127: u_int16_t, u_int16_t, u_int16_t, int16_t, int16_t);
128:
129: int gbox_ioctl(void *, u_long, caddr_t, int, struct proc *);
130: void gbox_burner(void *, u_int, u_int);
131:
132: struct wsdisplay_accessops gbox_accessops = {
133: gbox_ioctl,
134: diofb_mmap,
135: diofb_alloc_screen,
136: diofb_free_screen,
137: diofb_show_screen,
138: NULL, /* load_font */
139: NULL, /* scrollback */
140: NULL, /* getchar */
141: gbox_burner
142: };
143:
144: /*
145: * Attachment glue
146: */
147: int
148: gbox_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 && fbr->fbid == GID_GATORBOX) {
159: ia->ia_addr = (caddr_t)GRFIADDR;
160: return (1);
161: }
162:
163: return (0);
164: }
165:
166: void
167: gbox_intio_attach(struct device *parent, struct device *self, void *aux)
168: {
169: struct gbox_softc *sc = (struct gbox_softc *)self;
170: struct diofbreg *fbr;
171:
172: fbr = (struct diofbreg *)IIOV(GRFIADDR);
173: sc->sc_scode = CONSCODE_INTERNAL;
174:
175: if (sc->sc_scode == conscode) {
176: sc->sc_fb = &diofb_cn;
177: } else {
178: sc->sc_fb = &sc->sc_fb_store;
179: gbox_reset(sc->sc_fb, sc->sc_scode, fbr);
180: }
181:
182: diofb_end_attach(sc, &gbox_accessops, sc->sc_fb,
183: sc->sc_scode == conscode, NULL);
184: }
185:
186: int
187: gbox_dio_match(struct device *parent, void *match, void *aux)
188: {
189: struct dio_attach_args *da = aux;
190:
191: /* We can not appear in DIO-II space */
192: if (DIO_ISDIOII(da->da_scode))
193: return (0);
194:
195: if (da->da_id == DIO_DEVICE_ID_FRAMEBUFFER &&
196: da->da_secid == DIO_DEVICE_SECID_GATORBOX)
197: return (1);
198:
199: return (0);
200: }
201:
202: void
203: gbox_dio_attach(struct device *parent, struct device *self, void *aux)
204: {
205: struct gbox_softc *sc = (struct gbox_softc *)self;
206: struct dio_attach_args *da = aux;
207: struct diofbreg * fbr;
208:
209: sc->sc_scode = da->da_scode;
210: if (sc->sc_scode == conscode) {
211: fbr = (struct diofbreg *)conaddr; /* already mapped */
212: sc->sc_fb = &diofb_cn;
213: } else {
214: sc->sc_fb = &sc->sc_fb_store;
215: fbr = (struct diofbreg *)
216: iomap(dio_scodetopa(sc->sc_scode), da->da_size);
217: if (fbr == NULL ||
218: gbox_reset(sc->sc_fb, sc->sc_scode, fbr) != 0) {
219: printf(": can't map framebuffer\n");
220: return;
221: }
222: }
223:
224: diofb_end_attach(sc, &gbox_accessops, sc->sc_fb,
225: sc->sc_scode == conscode, NULL);
226: }
227:
228: /*
229: * Initialize hardware and display routines.
230: */
231:
232: const u_int8_t crtc_init_data[] = {
233: 0x29, 0x20, 0x23, 0x04, 0x30, 0x0b, 0x30,
234: 0x30, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x00
235: };
236:
237: int
238: gbox_reset(struct diofb *fb, int scode, struct diofbreg *fbr)
239: {
240: int rc;
241: u_int i;
242:
243: /* XXX don't trust hardware, force defaults */
244: fb->fbwidth = 1024;
245: fb->fbheight = 1024;
246: fb->dwidth = 1024;
247: fb->dheight = 768;
248: if ((rc = diofb_fbinquire(fb, scode, fbr)) != 0)
249: return (rc);
250:
251: fb->bmv = gbox_windowmove;
252: gbox_restore(fb);
253:
254: /*
255: * Find out how many colors are available by determining
256: * which planes are installed. That is, write all ones to
257: * a frame buffer location, see how many ones are read back.
258: */
259: if (1 /* fb->planes == 0 */) {
260: volatile u_int8_t *fbp;
261: u_int8_t save;
262:
263: fbp = (u_int8_t *)fb->fbkva;
264: save = *fbp;
265: *fbp = 0xff;
266: fb->planemask = *fbp;
267: *fbp = save;
268:
269: for (fb->planes = 1; fb->planemask >= (1 << fb->planes);
270: fb->planes++);
271: if (fb->planes > 8)
272: fb->planes = 8;
273: fb->planemask = (1 << fb->planes) - 1;
274: }
275:
276: diofb_fbsetup(fb);
277: for (i = 0; i <= fb->planemask; i++)
278: gbox_setcolor(fb, i);
279:
280: return (0);
281: }
282:
283: void
284: gbox_restore(struct diofb *fb)
285: {
286: volatile struct gboxfb *gb = (struct gboxfb *)fb->regkva;
287: u_int i;
288:
289: /*
290: * The minimal info here is from the Gatorbox X driver.
291: */
292: gb->write_protect = 0x0;
293: gb->regs.interrupt = 0x4;
294: gb->rep_rule = RR_COPY;
295: gb->blink1 = 0xff;
296: gb->blink2 = 0xff;
297:
298: /*
299: * Program the 6845.
300: */
301: for (i = 0; i < sizeof(crtc_init_data); i++) {
302: gb->crtc_address = i;
303: gb->crtc_data = crtc_init_data[i];
304: }
305:
306: tile_mover_waitbusy(gb);
307:
308: /* Enable display */
309: gb->regs.sec_interrupt = 0x01;
310: }
311:
312: int
313: gbox_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
314: {
315: struct diofb *fb = v;
316: struct wsdisplay_fbinfo *wdf;
317: u_int i;
318:
319: switch (cmd) {
320: case WSDISPLAYIO_GTYPE:
321: *(u_int *)data = WSDISPLAY_TYPE_GBOX;
322: break;
323: case WSDISPLAYIO_SMODE:
324: fb->mapmode = *(u_int *)data;
325: if (fb->mapmode == WSDISPLAYIO_MODE_EMUL) {
326: gbox_restore(fb);
327: for (i = 0; i <= fb->planemask; i++)
328: gbox_setcolor(fb, i);
329: }
330: break;
331: case WSDISPLAYIO_GINFO:
332: wdf = (void *)data;
333: wdf->width = fb->ri.ri_width;
334: wdf->height = fb->ri.ri_height;
335: wdf->depth = fb->ri.ri_depth;
336: wdf->cmsize = 1 << fb->planes;
337: break;
338: case WSDISPLAYIO_LINEBYTES:
339: *(u_int *)data = fb->ri.ri_stride;
340: break;
341: case WSDISPLAYIO_GETCMAP:
342: return (diofb_getcmap(fb, (struct wsdisplay_cmap *)data));
343: case WSDISPLAYIO_PUTCMAP:
344: return (gbox_setcmap(fb, (struct wsdisplay_cmap *)data));
345: case WSDISPLAYIO_GVIDEO:
346: case WSDISPLAYIO_SVIDEO:
347: break;
348: default:
349: return (-1);
350: }
351:
352: return (0);
353: }
354:
355: void
356: gbox_burner(void *v, u_int on, u_int flags)
357: {
358: struct diofb *fb = v;
359: volatile struct gboxfb *gb = (struct gboxfb *)fb->regkva;
360:
361: if (on)
362: gb->regs.sec_interrupt = 0x01;
363: else
364: gb->regs.sec_interrupt = 0x00;
365: }
366:
367: void
368: gbox_setcolor(struct diofb *fb, u_int index)
369: {
370: volatile struct gboxfb *gb = (struct gboxfb *)fb->regkva;
371:
372: gb->creg_select = index;
373: gb->cmap_red = fb->cmap.r[index];
374: gb->cmap_grn = fb->cmap.g[index];
375: gb->cmap_blu = fb->cmap.b[index];
376: gb->cmap_write = !!index;
377: gbcm_waitbusy(gb);
378: }
379:
380: int
381: gbox_setcmap(struct diofb *fb, struct wsdisplay_cmap *cm)
382: {
383: u_int8_t r[256], g[256], b[256];
384: u_int index = cm->index, count = cm->count;
385: u_int colcount = 1 << fb->planes;
386: int error;
387:
388: if (index >= colcount || count > colcount - index)
389: return (EINVAL);
390:
391: if ((error = copyin(cm->red, r, count)) != 0)
392: return (error);
393: if ((error = copyin(cm->green, g, count)) != 0)
394: return (error);
395: if ((error = copyin(cm->blue, b, count)) != 0)
396: return (error);
397:
398: bcopy(r, fb->cmap.r + index, count);
399: bcopy(g, fb->cmap.g + index, count);
400: bcopy(b, fb->cmap.b + index, count);
401:
402: while (count-- != 0)
403: gbox_setcolor(fb, index++);
404:
405: return (0);
406: }
407:
408: int
409: gbox_windowmove(struct diofb *fb, u_int16_t sx, u_int16_t sy,
410: u_int16_t dx, u_int16_t dy, u_int16_t cx, u_int16_t cy, int16_t rop,
411: int16_t planemask)
412: {
413: volatile struct gboxfb *gb = (struct gboxfb *)fb->regkva;
414: int src, dest;
415:
416: if (planemask != 0xff)
417: return (EINVAL);
418:
419: src = (sy * 1024) + sx; /* upper left corner in pixels */
420: dest = (dy * 1024) + dx;
421:
422: tile_mover_waitbusy(gb);
423:
424: gb->width = -(cx / 4);
425: gb->height = -(cy / 4);
426: if (src < dest)
427: gb->rep_rule = MOVE_DOWN_RIGHT | rop;
428: else {
429: gb->rep_rule = MOVE_UP_LEFT | rop;
430: /*
431: * Adjust to top of lower right tile of the block.
432: */
433: src = src + ((cy - 4) * 1024) + (cx - 4);
434: dest= dest + ((cy - 4) * 1024) + (cx - 4);
435: }
436: *(volatile u_int8_t *)(fb->fbkva + dest) =
437: *(volatile u_int8_t *)(fb->fbkva + src);
438:
439: tile_mover_waitbusy(gb);
440:
441: return (0);
442: }
443:
444: /*
445: * Gatorbox console support
446: */
447:
448: void
449: gboxcninit()
450: {
451: gbox_reset(&diofb_cn, conscode, (struct diofbreg *)conaddr);
452: diofb_cnattach(&diofb_cn);
453: }
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