?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Ok. I didn't make 2.4.0 in 2000. Tough. I tried, but we had some
[davej-history.git] / drivers / video / leofb.c
blob6b233e5f81e2a3a5d1d2d76fa54bec3a0623ebaf
1 /* $Id: leofb.c,v 1.11 2000/07/26 23:02:52 davem Exp $
2 * leofb.c: Leo (ZX) 24/8bit frame buffer driver
3 *
4 * Copyright (C) 1996-1999 Jakub Jelinek (jj@ultra.linux.cz)
5 * Copyright (C) 1997 Michal Rehacek (Michal.Rehacek@st.mff.cuni.cz)
6 */
7
8 #include <linux/module.h>
9 #include <linux/sched.h>
10 #include <linux/kernel.h>
11 #include <linux/errno.h>
12 #include <linux/string.h>
13 #include <linux/mm.h>
14 #include <linux/tty.h>
15 #include <linux/malloc.h>
16 #include <linux/vmalloc.h>
17 #include <linux/delay.h>
18 #include <linux/interrupt.h>
19 #include <linux/fb.h>
20 #include <linux/init.h>
21 #include <linux/selection.h>
22
23 #include <video/sbusfb.h>
24 #include <asm/io.h>
25
26 #define LEO_OFF_LC_SS0_KRN 0x00200000UL
27 #define LEO_OFF_LC_SS0_USR 0x00201000UL
28 #define LEO_OFF_LC_SS1_KRN 0x01200000UL
29 #define LEO_OFF_LC_SS1_USR 0x01201000UL
30 #define LEO_OFF_LD_SS0 0x00400000UL
31 #define LEO_OFF_LD_SS1 0x01400000UL
32 #define LEO_OFF_LD_GBL 0x00401000UL
33 #define LEO_OFF_LX_KRN 0x00600000UL
34 #define LEO_OFF_LX_CURSOR 0x00601000UL
35 #define LEO_OFF_SS0 0x00800000UL
36 #define LEO_OFF_SS1 0x01800000UL
37 #define LEO_OFF_UNK 0x00602000UL
38 #define LEO_OFF_UNK2 0x00000000UL
39
40 #define LEO_CUR_ENABLE 0x00000080
41 #define LEO_CUR_UPDATE 0x00000030
42 #define LEO_CUR_PROGRESS 0x00000006
43 #define LEO_CUR_UPDATECMAP 0x00000003
44
45 #define LEO_CUR_TYPE_MASK 0x00000000
46 #define LEO_CUR_TYPE_IMAGE 0x00000020
47 #define LEO_CUR_TYPE_CMAP 0x00000050
48
49 struct leo_cursor {
50 u8 xxx0[16];
51 volatile u32 cur_type;
52 volatile u32 cur_misc;
53 volatile u32 cur_cursxy;
54 volatile u32 cur_data;
55 };
56
57 #define LEO_KRN_TYPE_CLUT0 0x00001000
58 #define LEO_KRN_TYPE_CLUT1 0x00001001
59 #define LEO_KRN_TYPE_CLUT2 0x00001002
60 #define LEO_KRN_TYPE_WID 0x00001003
61 #define LEO_KRN_TYPE_UNK 0x00001006
62 #define LEO_KRN_TYPE_VIDEO 0x00002003
63 #define LEO_KRN_TYPE_CLUTDATA 0x00004000
64 #define LEO_KRN_CSR_ENABLE 0x00000008
65 #define LEO_KRN_CSR_PROGRESS 0x00000004
66 #define LEO_KRN_CSR_UNK 0x00000002
67 #define LEO_KRN_CSR_UNK2 0x00000001
68
69 struct leo_lx_krn {
70 volatile u32 krn_type;
71 volatile u32 krn_csr;
72 volatile u32 krn_value;
73 };
74
75 struct leo_lc_ss0_krn {
76 volatile u32 misc;
77 u8 xxx0[0x800-4];
78 volatile u32 rev;
79 };
80
81 struct leo_lc_ss0_usr {
82 volatile u32 csr;
83 volatile u32 addrspace;
84 volatile u32 fontmsk;
85 volatile u32 fontt;
86 volatile u32 extent;
87 volatile u32 src;
88 u32 dst;
89 volatile u32 copy;
90 volatile u32 fill;
91 };
92
93 struct leo_lc_ss1_krn {
94 u8 unknown;
95 };
96
97 struct leo_lc_ss1_usr {
98 u8 unknown;
99 };
100
101 struct leo_ld {
102 u8 xxx0[0xe00];
103 volatile u32 csr;
104 volatile u32 wid;
105 volatile u32 wmask;
106 volatile u32 widclip;
107 volatile u32 vclipmin;
108 volatile u32 vclipmax;
109 volatile u32 pickmin; /* SS1 only */
110 volatile u32 pickmax; /* SS1 only */
111 volatile u32 fg;
112 volatile u32 bg;
113 volatile u32 src; /* Copy/Scroll (SS0 only) */
114 volatile u32 dst; /* Copy/Scroll/Fill (SS0 only) */
115 volatile u32 extent; /* Copy/Scroll/Fill size (SS0 only) */
116 u32 xxx1[3];
117 volatile u32 setsem; /* SS1 only */
118 volatile u32 clrsem; /* SS1 only */
119 volatile u32 clrpick; /* SS1 only */
120 volatile u32 clrdat; /* SS1 only */
121 volatile u32 alpha; /* SS1 only */
122 u8 xxx2[0x2c];
123 volatile u32 winbg;
124 volatile u32 planemask;
125 volatile u32 rop;
126 volatile u32 z;
127 volatile u32 dczf; /* SS1 only */
128 volatile u32 dczb; /* SS1 only */
129 volatile u32 dcs; /* SS1 only */
130 volatile u32 dczs; /* SS1 only */
131 volatile u32 pickfb; /* SS1 only */
132 volatile u32 pickbb; /* SS1 only */
133 volatile u32 dcfc; /* SS1 only */
134 volatile u32 forcecol; /* SS1 only */
135 volatile u32 door[8]; /* SS1 only */
136 volatile u32 pick[5]; /* SS1 only */
137 };
138
139 #define LEO_SS1_MISC_ENABLE 0x00000001
140 #define LEO_SS1_MISC_STEREO 0x00000002
141 struct leo_ld_ss1 {
142 u8 xxx0[0xef4];
143 volatile u32 ss1_misc;
144 };
145
146 struct leo_ld_gbl {
147 u8 unknown;
148 };
149
150 static struct sbus_mmap_map leo_mmap_map[] = {
151 { LEO_SS0_MAP, LEO_OFF_SS0, 0x800000 },
152 { LEO_LC_SS0_USR_MAP, LEO_OFF_LC_SS0_USR, 0x1000 },
153 { LEO_LD_SS0_MAP, LEO_OFF_LD_SS0, 0x1000 },
154 { LEO_LX_CURSOR_MAP, LEO_OFF_LX_CURSOR, 0x1000 },
155 { LEO_SS1_MAP, LEO_OFF_SS1, 0x800000 },
156 { LEO_LC_SS1_USR_MAP, LEO_OFF_LC_SS1_USR, 0x1000 },
157 { LEO_LD_SS1_MAP, LEO_OFF_LD_SS1, 0x1000 },
158 { LEO_UNK_MAP, LEO_OFF_UNK, 0x1000 },
159 { LEO_LX_KRN_MAP, LEO_OFF_LX_KRN, 0x1000 },
160 { LEO_LC_SS0_KRN_MAP, LEO_OFF_LC_SS0_KRN, 0x1000 },
161 { LEO_LC_SS1_KRN_MAP, LEO_OFF_LC_SS1_KRN, 0x1000 },
162 { LEO_LD_GBL_MAP, LEO_OFF_LD_GBL, 0x1000 },
163 { LEO_UNK2_MAP, LEO_OFF_UNK2, 0x100000 },
164 { 0, 0, 0 }
165 };
166
167 static void leo_setup(struct display *p)
168 {
169 p->next_line = 8192;
170 p->next_plane = 0;
171 }
172
173 static void leo_clear(struct vc_data *conp, struct display *p, int sy, int sx,
174 int height, int width)
175 {
176 struct fb_info_sbusfb *fb = (struct fb_info_sbusfb *)p->fb_info;
177 register struct leo_lc_ss0_usr *us = fb->s.leo.lc_ss0_usr;
178 register struct leo_ld *ss = (struct leo_ld *) fb->s.leo.ld_ss0;
179 unsigned long flags;
180 int x, y, w, h;
181 int i;
182
183 spin_lock_irqsave(&fb->lock, flags);
184 do {
185 i = sbus_readl(&us->csr);
186 } while (i & 0x20000000);
187 sbus_writel((attr_bgcol_ec(p,conp)<<24), &ss->fg);
188 if (fontheightlog(p)) {
189 y = sy << fontheightlog(p); h = height << fontheightlog(p);
190 } else {
191 y = sy * fontheight(p); h = height * fontheight(p);
192 }
193 if (fontwidthlog(p)) {
194 x = sx << fontwidthlog(p); w = width << fontwidthlog(p);
195 } else {
196 x = sx * fontwidth(p); w = width * fontwidth(p);
197 }
198 sbus_writel((w - 1) | ((h - 1) << 11), &us->extent);
199 sbus_writel((x + fb->x_margin) | ((y + fb->y_margin) << 11) | 0x80000000,
200 &us->fill);
201 spin_unlock_irqrestore(&fb->lock, flags);
202 }
203
204 static void leo_fill(struct fb_info_sbusfb *fb, struct display *p, int s,
205 int count, unsigned short *boxes)
206 {
207 int i;
208 register struct leo_lc_ss0_usr *us = fb->s.leo.lc_ss0_usr;
209 register struct leo_ld *ss = (struct leo_ld *) fb->s.leo.ld_ss0;
210 unsigned long flags;
211
212 spin_lock_irqsave(&fb->lock, flags);
213 sbus_writel((attr_bgcol(p,s)<<24), &ss->fg);
214 while (count-- > 0) {
215 do {
216 i = sbus_readl(&us->csr);
217 } while (i & 0x20000000);
218 sbus_writel((boxes[2] - boxes[0] - 1) |
219 ((boxes[3] - boxes[1] - 1) << 11),
220 &us->extent);
221 sbus_writel(boxes[0] | (boxes[1] << 11) | 0x80000000,
222 &us->fill);
223 boxes += 4;
224 }
225 spin_unlock_irqrestore(&fb->lock, flags);
226 }
227
228 static void leo_putc(struct vc_data *conp, struct display *p, int c, int yy, int xx)
229 {
230 struct fb_info_sbusfb *fb = (struct fb_info_sbusfb *)p->fb_info;
231 register struct leo_lc_ss0_usr *us = fb->s.leo.lc_ss0_usr;
232 register struct leo_ld *ss = (struct leo_ld *) fb->s.leo.ld_ss0;
233 unsigned long flags;
234 int i, x, y;
235 u8 *fd;
236 u32 *u;
237
238 spin_lock_irqsave(&fb->lock, flags);
239 if (fontheightlog(p)) {
240 y = yy << (fontheightlog(p) + 11);
241 i = (c & p->charmask) << fontheightlog(p);
242 } else {
243 y = (yy * fontheight(p)) << 11;
244 i = (c & p->charmask) * fontheight(p);
245 }
246 if (fontwidth(p) <= 8)
247 fd = p->fontdata + i;
248 else
249 fd = p->fontdata + (i << 1);
250 if (fontwidthlog(p))
251 x = xx << fontwidthlog(p);
252 else
253 x = xx * fontwidth(p);
254 do {
255 i = sbus_readl(&us->csr);
256 } while (i & 0x20000000);
257 sbus_writel(attr_fgcol(p,c) << 24, &ss->fg);
258 sbus_writel(attr_bgcol(p,c) << 24, &ss->bg);
259 sbus_writel(0xFFFFFFFF<<(32-fontwidth(p)),
260 &us->fontmsk);
261 u = ((u32 *)p->screen_base) + y + x;
262 if (fontwidth(p) <= 8) {
263 for (i = 0; i < fontheight(p); i++, u += 2048) {
264 u32 val = *fd++ << 24;
265
266 sbus_writel(val, u);
267 }
268 } else {
269 for (i = 0; i < fontheight(p); i++, u += 2048) {
270 u32 val = *(u16 *)fd << 16;
271
272 sbus_writel(val, u);
273 fd += 2;
274 }
275 }
276 spin_unlock_irqrestore(&fb->lock, flags);
277 }
278
279 static void leo_putcs(struct vc_data *conp, struct display *p, const unsigned short *s,
280 int count, int yy, int xx)
281 {
282 struct fb_info_sbusfb *fb = (struct fb_info_sbusfb *)p->fb_info;
283 register struct leo_lc_ss0_usr *us = fb->s.leo.lc_ss0_usr;
284 register struct leo_ld *ss = (struct leo_ld *) fb->s.leo.ld_ss0;
285 unsigned long flags;
286 int i, x, y;
287 u8 *fd1, *fd2, *fd3, *fd4;
288 u32 *u;
289
290 spin_lock_irqsave(&fb->lock, flags);
291 do {
292 i = sbus_readl(&us->csr);
293 } while (i & 0x20000000);
294 sbus_writel(attr_fgcol(p,scr_readw(s)) << 24, &ss->fg);
295 sbus_writel(attr_bgcol(p,scr_readw(s)) << 24, &ss->bg);
296 sbus_writel(0xFFFFFFFF<<(32-fontwidth(p)), &us->fontmsk);
297 if (fontwidthlog(p))
298 x = (xx << fontwidthlog(p));
299 else
300 x = xx * fontwidth(p);
301 if (fontheightlog(p))
302 y = yy << (fontheightlog(p) + 11);
303 else
304 y = (yy * fontheight(p)) << 11;
305 u = ((u32 *)p->screen_base) + y + x;
306 if (fontwidth(p) <= 8) {
307 sbus_writel(0xFFFFFFFF<<(32-4*fontwidth(p)), &us->fontmsk);
308 x = 4*fontwidth(p) - fontheight(p)*2048;
309 while (count >= 4) {
310 count -= 4;
311 if (fontheightlog(p)) {
312 fd1 = p->fontdata + ((scr_readw(s++) & p->charmask) << fontheightlog(p));
313 fd2 = p->fontdata + ((scr_readw(s++) & p->charmask) << fontheightlog(p));
314 fd3 = p->fontdata + ((scr_readw(s++) & p->charmask) << fontheightlog(p));
315 fd4 = p->fontdata + ((scr_readw(s++) & p->charmask) << fontheightlog(p));
316 } else {
317 fd1 = p->fontdata + ((scr_readw(s++) & p->charmask) * fontheight(p));
318 fd2 = p->fontdata + ((scr_readw(s++) & p->charmask) * fontheight(p));
319 fd3 = p->fontdata + ((scr_readw(s++) & p->charmask) * fontheight(p));
320 fd4 = p->fontdata + ((scr_readw(s++) & p->charmask) * fontheight(p));
321 }
322 if (fontwidth(p) == 8) {
323 for (i = 0; i < fontheight(p); i++, u += 2048) {
324 u32 val;
325
326 val = ((u32)*fd4++) | ((((u32)*fd3++) | ((((u32)*fd2++) | (((u32)*fd1++)
327 << 8)) << 8)) << 8);
328 sbus_writel(val, u);
329 }
330 u += x;
331 } else {
332 for (i = 0; i < fontheight(p); i++, u += 2048) {
333 u32 val;
334
335 val = (((u32)*fd4++) | ((((u32)*fd3++) | ((((u32)*fd2++) | (((u32)*fd1++)
336 << fontwidth(p))) << fontwidth(p))) << fontwidth(p))) << (24 - 3 * fontwidth(p));
337 sbus_writel(val, u);
338 }
339 u += x;
340 }
341 }
342 } else {
343 sbus_writel(0xFFFFFFFF<<(32-2*fontwidth(p)), &us->fontmsk);
344 x = 2*fontwidth(p) - fontheight(p)*2048;
345 while (count >= 2) {
346 count -= 2;
347 if (fontheightlog(p)) {
348 fd1 = p->fontdata + ((scr_readw(s++) & p->charmask) << (fontheightlog(p) + 1));
349 fd2 = p->fontdata + ((scr_readw(s++) & p->charmask) << (fontheightlog(p) + 1));
350 } else {
351 fd1 = p->fontdata + (((scr_readw(s++) & p->charmask) * fontheight(p)) << 1);
352 fd2 = p->fontdata + (((scr_readw(s++) & p->charmask) * fontheight(p)) << 1);
353 }
354 for (i = 0; i < fontheight(p); i++, u += 2048) {
355 u32 val;
356
357 val = ((((u32)*(u16 *)fd1) << fontwidth(p)) | ((u32)*(u16 *)fd2)) << (16 - fontwidth(p));
358 sbus_writel(val, u);
359 fd1 += 2; fd2 += 2;
360 }
361 u += x;
362 }
363 }
364 sbus_writel(0xFFFFFFFF<<(32-fontwidth(p)), &us->fontmsk);
365 x = fontwidth(p) - fontheight(p)*2048;
366 while (count) {
367 count--;
368 if (fontheightlog(p))
369 i = ((scr_readw(s++) & p->charmask) << fontheightlog(p));
370 else
371 i = ((scr_readw(s++) & p->charmask) * fontheight(p));
372 if (fontwidth(p) <= 8) {
373 fd1 = p->fontdata + i;
374 for (i = 0; i < fontheight(p); i++, u += 2048) {
375 u32 val = *fd1++ << 24;
376
377 sbus_writel(val, u);
378 }
379 } else {
380 fd1 = p->fontdata + (i << 1);
381 for (i = 0; i < fontheight(p); i++, u += 2048) {
382 u32 val = *(u16 *)fd1 << 16;
383
384 sbus_writel(val, u);
385 fd1 += 2;
386 }
387 }
388 u += x;
389 }
390 spin_unlock_irqrestore(&fb->lock, flags);
391 }
392
393 static void leo_revc(struct display *p, int xx, int yy)
394 {
395 /* Not used if hw cursor */
396 }
397
398 static int leo_wait (struct leo_lx_krn *lx_krn)
399 {
400 int i;
401
402 for (i = 0; (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) && i < 300000; i++)
403 udelay (1); /* Busy wait at most 0.3 sec */
404 if (i == 300000)
405 return -EFAULT; /* Timed out - should we print some message? */
406 return 0;
407 }
408
409 static void leo_loadcmap (struct fb_info_sbusfb *fb, struct display *p, int index, int count)
410 {
411 struct leo_lx_krn *lx_krn = fb->s.leo.lx_krn;
412 unsigned long flags;
413 u32 tmp;
414 int i;
415
416 spin_lock_irqsave(&fb->lock, flags);
417 sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type);
418 i = leo_wait (lx_krn);
419 if (i)
420 goto out;
421 sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type);
422 for (i = 0; i < 256; i++) {
423 u32 val;
424
425 val = fb->color_map CM(i,0) |
426 (fb->color_map CM(i,1) << 8) |
427 (fb->color_map CM(i,2) << 16);
428
429 sbus_writel(val, &lx_krn->krn_value); /* Throw colors there :)) */
430 }
431 sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type);
432 tmp = sbus_readl(&lx_krn->krn_csr);
433 tmp |= (LEO_KRN_CSR_UNK|LEO_KRN_CSR_UNK2);
434 sbus_writel(tmp, &lx_krn->krn_csr);
435 out:
436 spin_unlock_irqrestore(&fb->lock, flags);
437 }
438
439 static void leo_restore_palette (struct fb_info_sbusfb *fb)
440 {
441 u32 tmp;
442 unsigned long flags;
443
444 spin_lock_irqsave(&fb->lock, flags);
445 tmp = sbus_readl(&fb->s.leo.ld_ss1->ss1_misc);
446 tmp &= ~(LEO_SS1_MISC_ENABLE);
447 sbus_writel(tmp, &fb->s.leo.ld_ss1->ss1_misc);
448 spin_unlock_irqrestore(&fb->lock, flags);
449 }
450
451 static struct display_switch leo_dispsw __initdata = {
452 setup: leo_setup,
453 bmove: fbcon_redraw_bmove,
454 clear: leo_clear,
455 putc: leo_putc,
456 putcs: leo_putcs,
457 revc: leo_revc,
458 fontwidthmask: FONTWIDTHRANGE(1,16) /* Allow fontwidths up to 16 */
459 };
460
461 static void leo_setcursormap (struct fb_info_sbusfb *fb, u8 *red, u8 *green, u8 *blue)
462 {
463 struct leo_cursor *l = fb->s.leo.cursor;
464 unsigned long flags;
465 int i;
466
467 spin_lock_irqsave(&fb->lock, flags);
468 for (i = 0; (sbus_readl(&l->cur_misc) & LEO_CUR_PROGRESS) && i < 300000; i++)
469 udelay (1); /* Busy wait at most 0.3 sec */
470 if (i == 300000)
471 goto out; /* Timed out - should we print some message? */
472 sbus_writel(LEO_CUR_TYPE_CMAP, &l->cur_type);
473 sbus_writel((red[0] | (green[0]<<8) | (blue[0]<<16)), &l->cur_data);
474 sbus_writel((red[1] | (green[1]<<8) | (blue[1]<<16)), &l->cur_data);
475 sbus_writel(LEO_CUR_UPDATECMAP, &l->cur_misc);
476 out:
477 spin_unlock_irqrestore(&fb->lock, flags);
478 }
479
480 /* Set cursor shape */
481 static void leo_setcurshape (struct fb_info_sbusfb *fb)
482 {
483 int i, j, k;
484 u32 m, n, mask;
485 struct leo_cursor *l = fb->s.leo.cursor;
486 u32 tmp;
487 unsigned long flags;
488
489 spin_lock_irqsave(&fb->lock, flags);
490 tmp = sbus_readl(&l->cur_misc);
491 tmp &= ~LEO_CUR_ENABLE;
492 sbus_writel(tmp, &l->cur_misc);
493 for (k = 0; k < 2; k ++) {
494 sbus_writel((k * LEO_CUR_TYPE_IMAGE), &l->cur_type);
495 for (i = 0; i < 32; i++) {
496 mask = 0;
497 m = fb->cursor.bits[k][i];
498 /* mask = m with reversed bit order */
499 for (j = 0, n = 1; j < 32; j++, n <<= 1)
500 if (m & n)
501 mask |= (0x80000000 >> j);
502 sbus_writel(mask, &l->cur_data);
503 }
504 }
505 tmp = sbus_readl(&l->cur_misc);
506 tmp |= LEO_CUR_ENABLE;
507 sbus_writel(tmp, &l->cur_misc);
508 spin_unlock_irqrestore(&fb->lock, flags);
509 }
510
511 /* Load cursor information */
512 static void leo_setcursor (struct fb_info_sbusfb *fb)
513 {
514 struct cg_cursor *c = &fb->cursor;
515 struct leo_cursor *l = fb->s.leo.cursor;
516 unsigned long flags;
517 u32 tmp;
518
519 spin_lock_irqsave(&fb->lock, flags);
520 tmp = sbus_readl(&l->cur_misc);
521 tmp &= ~LEO_CUR_ENABLE;
522 sbus_writel(tmp, &l->cur_misc);
523
524 sbus_writel(((c->cpos.fbx - c->chot.fbx) & 0x7ff) |
525 (((c->cpos.fby - c->chot.fby) & 0x7ff) << 11),
526 &l->cur_cursxy);
527
528 tmp = sbus_readl(&l->cur_misc);
529 tmp |= LEO_CUR_UPDATE;
530 if (c->enable)
531 tmp |= LEO_CUR_ENABLE;
532 sbus_writel(tmp, &l->cur_misc);
533 spin_unlock_irqrestore(&fb->lock, flags);
534 }
535
536 static void leo_blank (struct fb_info_sbusfb *fb)
537 {
538 unsigned long flags;
539 u32 tmp;
540
541 spin_lock_irqsave(&fb->lock, flags);
542 sbus_writel(LEO_KRN_TYPE_VIDEO, &fb->s.leo.lx_krn->krn_type);
543
544 tmp = sbus_readl(&fb->s.leo.lx_krn->krn_csr);
545 tmp &= ~LEO_KRN_CSR_ENABLE;
546 sbus_writel(tmp, &fb->s.leo.lx_krn->krn_csr);
547 spin_unlock_irqrestore(&fb->lock, flags);
548 }
549
550 static void leo_unblank (struct fb_info_sbusfb *fb)
551 {
552 unsigned long flags;
553 u32 tmp;
554
555 spin_lock_irqsave(&fb->lock, flags);
556 sbus_writel(LEO_KRN_TYPE_VIDEO, &fb->s.leo.lx_krn->krn_type);
557
558 tmp = sbus_readl(&fb->s.leo.lx_krn->krn_csr);
559 if (!(tmp & LEO_KRN_CSR_ENABLE)) {
560 tmp |= LEO_KRN_CSR_ENABLE;
561 sbus_writel(tmp, &fb->s.leo.lx_krn->krn_csr);
562 }
563 spin_unlock_irqrestore(&fb->lock, flags);
564 }
565
566 static int __init
567 leo_wid_put (struct fb_info_sbusfb *fb, struct fb_wid_list *wl)
568 {
569 struct leo_lx_krn *lx_krn = fb->s.leo.lx_krn;
570 struct fb_wid_item *wi;
571 int i, j;
572
573 sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type);
574 i = leo_wait (lx_krn);
575 if (i)
576 return i;
577 for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) {
578 switch (wi->wi_type) {
579 case FB_WID_DBL_8: j = (wi->wi_index & 0xf) + 0x40; break;
580 case FB_WID_DBL_24: j = wi->wi_index & 0x3f; break;
581 default: return -EINVAL;
582 }
583 sbus_writel(0x5800 + j, &lx_krn->krn_type);
584 sbus_writel(wi->wi_values[0], &lx_krn->krn_value);
585 }
586 sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type);
587 sbus_writel(3, &lx_krn->krn_csr);
588 return 0;
589 }
590
591 static void leo_margins (struct fb_info_sbusfb *fb, struct display *p, int x_margin, int y_margin)
592 {
593 p->screen_base += 8192 * (y_margin - fb->y_margin) + 4 * (x_margin - fb->x_margin);
594 }
595
596 static void leo_switch_from_graph (struct fb_info_sbusfb *fb)
597 {
598 register struct leo_lc_ss0_usr *us = fb->s.leo.lc_ss0_usr;
599 register struct leo_ld *ss = (struct leo_ld *) fb->s.leo.ld_ss0;
600 unsigned long flags;
601
602 spin_lock_irqsave(&fb->lock, flags);
603 sbus_writel(0xffffffff, &ss->wid);
604 sbus_writel(0xffff, &ss->wmask);
605 sbus_writel(0, &ss->vclipmin);
606 sbus_writel(fb->s.leo.extent, &ss->vclipmax);
607 sbus_writel(0xff000000, &ss->planemask);
608 sbus_writel(0x310850, &ss->rop);
609 sbus_writel(0, &ss->widclip);
610 sbus_writel(4, &us->addrspace);
611 sbus_writel(0, &us->fontt);
612 spin_unlock_irqrestore(&fb->lock, flags);
613 }
614
615 static int __init leo_rasterimg (struct fb_info *info, int start)
616 {
617 struct fb_info_sbusfb *fb = sbusfbinfo(info);
618 register struct leo_lc_ss0_usr *us = fb->s.leo.lc_ss0_usr;
619 register struct leo_ld *ss = (struct leo_ld *) fb->s.leo.ld_ss0;
620
621 if (start) {
622 sbus_writel(1, &ss->wid);
623 sbus_writel(0xffffff, &ss->planemask);
624 sbus_writel(0x310b90, &ss->rop);
625 sbus_writel(0, &us->addrspace);
626 } else {
627 sbus_writel(0xffffffff, &ss->wid);
628 sbus_writel(0xff000000, &ss->planemask);
629 sbus_writel(0x310850, &ss->rop);
630 sbus_writel(4, &us->addrspace);
631 }
632 return 0;
633 }
634
635 static char idstring[40] __initdata = { 0 };
636
637 char * __init leofb_init(struct fb_info_sbusfb *fb)
638 {
639 struct fb_fix_screeninfo *fix = &fb->fix;
640 struct fb_var_screeninfo *var = &fb->var;
641 struct display *disp = &fb->disp;
642 struct fbtype *type = &fb->type;
643 struct sbus_dev *sdev = fb->sbdp;
644 unsigned long phys = sdev->reg_addrs[0].phys_addr;
645 struct fb_wid_item wi;
646 struct fb_wid_list wl;
647 int i;
648 register struct leo_lc_ss0_usr *us;
649 register struct leo_ld *ss;
650 struct fb_ops *fbops;
651 u32 tmp;
652
653 strcpy(fb->info.modename, "Leo");
654
655 strcpy(fix->id, "Leo");
656 fix->visual = FB_VISUAL_TRUECOLOR;
657 fix->line_length = 8192;
658 fix->accel = FB_ACCEL_SUN_LEO;
659
660 var->bits_per_pixel = 32;
661 var->green.offset = 8;
662 var->blue.offset = 16;
663 var->accel_flags = FB_ACCELF_TEXT;
664
665 fbops = kmalloc(sizeof(*fbops), GFP_KERNEL);
666 if (fbops == NULL)
667 return NULL;
668
669 *fbops = *fb->info.fbops;
670 fbops->fb_rasterimg = leo_rasterimg;
671 fb->info.fbops = fbops;
672
673 disp->scrollmode = SCROLL_YREDRAW;
674 if (!disp->screen_base) {
675 disp->screen_base = (char *)
676 sbus_ioremap(&sdev->resource[0], LEO_OFF_SS0,
677 0x800000, "leo ram");
678 }
679 disp->screen_base += 8192 * fb->y_margin + 4 * fb->x_margin;
680 us = fb->s.leo.lc_ss0_usr = (struct leo_lc_ss0_usr *)
681 sbus_ioremap(&sdev->resource[0], LEO_OFF_LC_SS0_USR,
682 0x1000, "leolc ss0usr");
683 fb->s.leo.ld_ss0 = (struct leo_ld_ss0 *)
684 sbus_ioremap(&sdev->resource[0], LEO_OFF_LD_SS0,
685 0x1000, "leold ss0");
686 ss = (struct leo_ld *) fb->s.leo.ld_ss0;
687 fb->s.leo.ld_ss1 = (struct leo_ld_ss1 *)
688 sbus_ioremap(&sdev->resource[0], LEO_OFF_LD_SS1,
689 0x1000, "leold ss1");
690 fb->s.leo.lx_krn = (struct leo_lx_krn *)
691 sbus_ioremap(&sdev->resource[0], LEO_OFF_LX_KRN,
692 0x1000, "leolx krn");
693 fb->s.leo.cursor = (struct leo_cursor *)
694 sbus_ioremap(&sdev->resource[0], LEO_OFF_LX_CURSOR,
695 sizeof(struct leo_cursor), "leolx cursor");
696 fb->dispsw = leo_dispsw;
697
698 fb->s.leo.extent = (type->fb_width-1) | ((type->fb_height-1) << 16);
699
700 wl.wl_count = 1;
701 wl.wl_list = &wi;
702 wi.wi_type = FB_WID_DBL_8;
703 wi.wi_index = 0;
704 wi.wi_values [0] = 0x2c0;
705 leo_wid_put (fb, &wl);
706 wi.wi_index = 1;
707 wi.wi_values [0] = 0x30;
708 leo_wid_put (fb, &wl);
709 wi.wi_index = 2;
710 wi.wi_values [0] = 0x20;
711 leo_wid_put (fb, &wl);
712 wi.wi_type = FB_WID_DBL_24;
713 wi.wi_index = 1;
714 wi.wi_values [0] = 0x30;
715 leo_wid_put (fb, &wl);
716
717 tmp = sbus_readl(&fb->s.leo.ld_ss1->ss1_misc);
718 tmp |= LEO_SS1_MISC_ENABLE;
719 sbus_writel(tmp, &fb->s.leo.ld_ss1->ss1_misc);
720
721 sbus_writel(0xffffffff, &ss->wid);
722 sbus_writel(0xffff, &ss->wmask);
723 sbus_writel(0, &ss->vclipmin);
724 sbus_writel(fb->s.leo.extent, &ss->vclipmax);
725 sbus_writel(0, &ss->fg);
726 sbus_writel(0xff000000, &ss->planemask);
727 sbus_writel(0x310850, &ss->rop);
728 sbus_writel(0, &ss->widclip);
729 sbus_writel((type->fb_width-1) | ((type->fb_height-1) << 11), &us->extent);
730 sbus_writel(4, &us->addrspace);
731 sbus_writel(0x80000000, &us->fill);
732 sbus_writel(0, &us->fontt);
733 do {
734 i = sbus_readl(&us->csr);
735 } while (i & 0x20000000);
736
737 fb->margins = leo_margins;
738 fb->loadcmap = leo_loadcmap;
739 fb->setcursor = leo_setcursor;
740 fb->setcursormap = leo_setcursormap;
741 fb->setcurshape = leo_setcurshape;
742 fb->restore_palette = leo_restore_palette;
743 fb->switch_from_graph = leo_switch_from_graph;
744 fb->fill = leo_fill;
745 fb->blank = leo_blank;
746 fb->unblank = leo_unblank;
747
748 fb->physbase = phys;
749 fb->mmap_map = leo_mmap_map;
750
751 #ifdef __sparc_v9__
752 sprintf(idstring, "leo at %016lx", phys);
753 #else
754 sprintf(idstring, "leo at %x.%08lx", fb->iospace, phys);
755 #endif
756
757 return idstring;
758 }
Copy of Dave Jones history.git as used by http://archive.org/details/git-history-of-linux