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authorDavid S. Miller <davem@davemloft.net>2009-09-15 20:04:38 -0400
committerDavid S. Miller <davem@davemloft.net>2009-09-15 20:04:38 -0400
commit09d3f3f0e02c8a900d076c302c5c02227f33572d (patch)
tree4114d7de68bc4579b03b8b5ac81483836412fd96 /drivers/video/console/promcon.c
parent0cb583fd2862f19ea88b02eb307d11c09e51e2f8 (diff)
sparc: Kill PROM console driver.
Many years ago when this driver was written, it had a use, but these days it's nothing but trouble and distributions should not enable it in any situation. Pretty much every console device a sparc machine could see has a bonafide real driver, making the PROM console hack unnecessary. If any new device shows up, we should write a driver instead of depending upon this crutch to save us. We've been able to take care of this even when no chip documentation exists (sunxvr500, sunxvr2500) so there are no excuses. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/video/console/promcon.c')
-rw-r--r--drivers/video/console/promcon.c598
1 files changed, 0 insertions, 598 deletions
diff --git a/drivers/video/console/promcon.c b/drivers/video/console/promcon.c
deleted file mode 100644
index ae02e4eb18e7..000000000000
--- a/drivers/video/console/promcon.c
+++ /dev/null
@@ -1,598 +0,0 @@
1/* $Id: promcon.c,v 1.17 2000/07/26 23:02:52 davem Exp $
2 * Console driver utilizing PROM sun terminal emulation
3 *
4 * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
5 * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
6 */
7
8#include <linux/module.h>
9#include <linux/kernel.h>
10#include <linux/errno.h>
11#include <linux/string.h>
12#include <linux/mm.h>
13#include <linux/slab.h>
14#include <linux/delay.h>
15#include <linux/console.h>
16#include <linux/vt_kern.h>
17#include <linux/selection.h>
18#include <linux/fb.h>
19#include <linux/init.h>
20#include <linux/kd.h>
21
22#include <asm/oplib.h>
23#include <asm/uaccess.h>
24
25static short pw = 80 - 1, ph = 34 - 1;
26static short px, py;
27static unsigned long promcon_uni_pagedir[2];
28
29extern u8 promfont_unicount[];
30extern u16 promfont_unitable[];
31
32#define PROMCON_COLOR 0
33
34#if PROMCON_COLOR
35#define inverted(s) ((((s) & 0x7700) == 0x0700) ? 0 : 1)
36#else
37#define inverted(s) (((s) & 0x0800) ? 1 : 0)
38#endif
39
40static __inline__ void
41promcon_puts(char *buf, int cnt)
42{
43 prom_printf("%*.*s", cnt, cnt, buf);
44}
45
46static int
47promcon_start(struct vc_data *conp, char *b)
48{
49 unsigned short *s = (unsigned short *)
50 (conp->vc_origin + py * conp->vc_size_row + (px << 1));
51 u16 cs;
52
53 cs = scr_readw(s);
54 if (px == pw) {
55 unsigned short *t = s - 1;
56 u16 ct = scr_readw(t);
57
58 if (inverted(cs) && inverted(ct))
59 return sprintf(b, "\b\033[7m%c\b\033[@%c\033[m", cs,
60 ct);
61 else if (inverted(cs))
62 return sprintf(b, "\b\033[7m%c\033[m\b\033[@%c", cs,
63 ct);
64 else if (inverted(ct))
65 return sprintf(b, "\b%c\b\033[@\033[7m%c\033[m", cs,
66 ct);
67 else
68 return sprintf(b, "\b%c\b\033[@%c", cs, ct);
69 }
70
71 if (inverted(cs))
72 return sprintf(b, "\033[7m%c\033[m\b", cs);
73 else
74 return sprintf(b, "%c\b", cs);
75}
76
77static int
78promcon_end(struct vc_data *conp, char *b)
79{
80 unsigned short *s = (unsigned short *)
81 (conp->vc_origin + py * conp->vc_size_row + (px << 1));
82 char *p = b;
83 u16 cs;
84
85 b += sprintf(b, "\033[%d;%dH", py + 1, px + 1);
86
87 cs = scr_readw(s);
88 if (px == pw) {
89 unsigned short *t = s - 1;
90 u16 ct = scr_readw(t);
91
92 if (inverted(cs) && inverted(ct))
93 b += sprintf(b, "\b%c\b\033[@\033[7m%c\033[m", cs, ct);
94 else if (inverted(cs))
95 b += sprintf(b, "\b%c\b\033[@%c", cs, ct);
96 else if (inverted(ct))
97 b += sprintf(b, "\b\033[7m%c\b\033[@%c\033[m", cs, ct);
98 else
99 b += sprintf(b, "\b\033[7m%c\033[m\b\033[@%c", cs, ct);
100 return b - p;
101 }
102
103 if (inverted(cs))
104 b += sprintf(b, "%c\b", cs);
105 else
106 b += sprintf(b, "\033[7m%c\033[m\b", cs);
107 return b - p;
108}
109
110const char *promcon_startup(void)
111{
112 const char *display_desc = "PROM";
113 int node;
114 char buf[40];
115
116 node = prom_getchild(prom_root_node);
117 node = prom_searchsiblings(node, "options");
118 if (prom_getproperty(node, "screen-#columns", buf, 40) != -1) {
119 pw = simple_strtoul(buf, NULL, 0);
120 if (pw < 10 || pw > 256)
121 pw = 80;
122 pw--;
123 }
124 if (prom_getproperty(node, "screen-#rows", buf, 40) != -1) {
125 ph = simple_strtoul(buf, NULL, 0);
126 if (ph < 10 || ph > 256)
127 ph = 34;
128 ph--;
129 }
130 promcon_puts("\033[H\033[J", 6);
131 return display_desc;
132}
133
134static void
135promcon_init_unimap(struct vc_data *conp)
136{
137 mm_segment_t old_fs = get_fs();
138 struct unipair *p, *p1;
139 u16 *q;
140 int i, j, k;
141
142 p = kmalloc(256*sizeof(struct unipair), GFP_KERNEL);
143 if (!p) return;
144
145 q = promfont_unitable;
146 p1 = p;
147 k = 0;
148 for (i = 0; i < 256; i++)
149 for (j = promfont_unicount[i]; j; j--) {
150 p1->unicode = *q++;
151 p1->fontpos = i;
152 p1++;
153 k++;
154 }
155 set_fs(KERNEL_DS);
156 con_clear_unimap(conp, NULL);
157 con_set_unimap(conp, k, p);
158 con_protect_unimap(conp, 1);
159 set_fs(old_fs);
160 kfree(p);
161}
162
163static void
164promcon_init(struct vc_data *conp, int init)
165{
166 unsigned long p;
167
168 conp->vc_can_do_color = PROMCON_COLOR;
169 if (init) {
170 conp->vc_cols = pw + 1;
171 conp->vc_rows = ph + 1;
172 }
173 p = *conp->vc_uni_pagedir_loc;
174 if (conp->vc_uni_pagedir_loc == &conp->vc_uni_pagedir ||
175 !--conp->vc_uni_pagedir_loc[1])
176 con_free_unimap(conp);
177 conp->vc_uni_pagedir_loc = promcon_uni_pagedir;
178 promcon_uni_pagedir[1]++;
179 if (!promcon_uni_pagedir[0] && p) {
180 promcon_init_unimap(conp);
181 }
182 if (!init) {
183 if (conp->vc_cols != pw + 1 || conp->vc_rows != ph + 1)
184 vc_resize(conp, pw + 1, ph + 1);
185 }
186}
187
188static void
189promcon_deinit(struct vc_data *conp)
190{
191 /* When closing the last console, reset video origin */
192 if (!--promcon_uni_pagedir[1])
193 con_free_unimap(conp);
194 conp->vc_uni_pagedir_loc = &conp->vc_uni_pagedir;
195 con_set_default_unimap(conp);
196}
197
198static int
199promcon_switch(struct vc_data *conp)
200{
201 return 1;
202}
203
204static unsigned short *
205promcon_repaint_line(unsigned short *s, unsigned char *buf, unsigned char **bp)
206{
207 int cnt = pw + 1;
208 int attr = -1;
209 unsigned char *b = *bp;
210
211 while (cnt--) {
212 u16 c = scr_readw(s);
213 if (attr != inverted(c)) {
214 attr = inverted(c);
215 if (attr) {
216 strcpy (b, "\033[7m");
217 b += 4;
218 } else {
219 strcpy (b, "\033[m");
220 b += 3;
221 }
222 }
223 *b++ = c;
224 s++;
225 if (b - buf >= 224) {
226 promcon_puts(buf, b - buf);
227 b = buf;
228 }
229 }
230 *bp = b;
231 return s;
232}
233
234static void
235promcon_putcs(struct vc_data *conp, const unsigned short *s,
236 int count, int y, int x)
237{
238 unsigned char buf[256], *b = buf;
239 unsigned short attr = scr_readw(s);
240 unsigned char save;
241 int i, last = 0;
242
243 if (console_blanked)
244 return;
245
246 if (count <= 0)
247 return;
248
249 b += promcon_start(conp, b);
250
251 if (x + count >= pw + 1) {
252 if (count == 1) {
253 x -= 1;
254 save = scr_readw((unsigned short *)(conp->vc_origin
255 + y * conp->vc_size_row
256 + (x << 1)));
257
258 if (px != x || py != y) {
259 b += sprintf(b, "\033[%d;%dH", y + 1, x + 1);
260 px = x;
261 py = y;
262 }
263
264 if (inverted(attr))
265 b += sprintf(b, "\033[7m%c\033[m", scr_readw(s++));
266 else
267 b += sprintf(b, "%c", scr_readw(s++));
268
269 strcpy(b, "\b\033[@");
270 b += 4;
271
272 if (inverted(save))
273 b += sprintf(b, "\033[7m%c\033[m", save);
274 else
275 b += sprintf(b, "%c", save);
276
277 px++;
278
279 b += promcon_end(conp, b);
280 promcon_puts(buf, b - buf);
281 return;
282 } else {
283 last = 1;
284 count = pw - x - 1;
285 }
286 }
287
288 if (inverted(attr)) {
289 strcpy(b, "\033[7m");
290 b += 4;
291 }
292
293 if (px != x || py != y) {
294 b += sprintf(b, "\033[%d;%dH", y + 1, x + 1);
295 px = x;
296 py = y;
297 }
298
299 for (i = 0; i < count; i++) {
300 if (b - buf >= 224) {
301 promcon_puts(buf, b - buf);
302 b = buf;
303 }
304 *b++ = scr_readw(s++);
305 }
306
307 px += count;
308
309 if (last) {
310 save = scr_readw(s++);
311 b += sprintf(b, "%c\b\033[@%c", scr_readw(s++), save);
312 px++;
313 }
314
315 if (inverted(attr)) {
316 strcpy(b, "\033[m");
317 b += 3;
318 }
319
320 b += promcon_end(conp, b);
321 promcon_puts(buf, b - buf);
322}
323
324static void
325promcon_putc(struct vc_data *conp, int c, int y, int x)
326{
327 unsigned short s;
328
329 if (console_blanked)
330 return;
331
332 scr_writew(c, &s);
333 promcon_putcs(conp, &s, 1, y, x);
334}
335
336static void
337promcon_clear(struct vc_data *conp, int sy, int sx, int height, int width)
338{
339 unsigned char buf[256], *b = buf;
340 int i, j;
341
342 if (console_blanked)
343 return;
344
345 b += promcon_start(conp, b);
346
347 if (!sx && width == pw + 1) {
348
349 if (!sy && height == ph + 1) {
350 strcpy(b, "\033[H\033[J");
351 b += 6;
352 b += promcon_end(conp, b);
353 promcon_puts(buf, b - buf);
354 return;
355 } else if (sy + height == ph + 1) {
356 b += sprintf(b, "\033[%dH\033[J", sy + 1);
357 b += promcon_end(conp, b);
358 promcon_puts(buf, b - buf);
359 return;
360 }
361
362 b += sprintf(b, "\033[%dH", sy + 1);
363 for (i = 1; i < height; i++) {
364 strcpy(b, "\033[K\n");
365 b += 4;
366 }
367
368 strcpy(b, "\033[K");
369 b += 3;
370
371 b += promcon_end(conp, b);
372 promcon_puts(buf, b - buf);
373 return;
374
375 } else if (sx + width == pw + 1) {
376
377 b += sprintf(b, "\033[%d;%dH", sy + 1, sx + 1);
378 for (i = 1; i < height; i++) {
379 strcpy(b, "\033[K\n");
380 b += 4;
381 }
382
383 strcpy(b, "\033[K");
384 b += 3;
385
386 b += promcon_end(conp, b);
387 promcon_puts(buf, b - buf);
388 return;
389 }
390
391 for (i = sy + 1; i <= sy + height; i++) {
392 b += sprintf(b, "\033[%d;%dH", i, sx + 1);
393 for (j = 0; j < width; j++)
394 *b++ = ' ';
395 if (b - buf + width >= 224) {
396 promcon_puts(buf, b - buf);
397 b = buf;
398 }
399 }
400
401 b += promcon_end(conp, b);
402 promcon_puts(buf, b - buf);
403}
404
405static void
406promcon_bmove(struct vc_data *conp, int sy, int sx, int dy, int dx,
407 int height, int width)
408{
409 char buf[256], *b = buf;
410
411 if (console_blanked)
412 return;
413
414 b += promcon_start(conp, b);
415 if (sy == dy && height == 1) {
416 if (dx > sx && dx + width == conp->vc_cols)
417 b += sprintf(b, "\033[%d;%dH\033[%d@\033[%d;%dH",
418 sy + 1, sx + 1, dx - sx, py + 1, px + 1);
419 else if (dx < sx && sx + width == conp->vc_cols)
420 b += sprintf(b, "\033[%d;%dH\033[%dP\033[%d;%dH",
421 dy + 1, dx + 1, sx - dx, py + 1, px + 1);
422
423 b += promcon_end(conp, b);
424 promcon_puts(buf, b - buf);
425 return;
426 }
427
428 /*
429 * FIXME: What to do here???
430 * Current console.c should not call it like that ever.
431 */
432 prom_printf("\033[7mFIXME: bmove not handled\033[m\n");
433}
434
435static void
436promcon_cursor(struct vc_data *conp, int mode)
437{
438 char buf[32], *b = buf;
439
440 switch (mode) {
441 case CM_ERASE:
442 break;
443
444 case CM_MOVE:
445 case CM_DRAW:
446 b += promcon_start(conp, b);
447 if (px != conp->vc_x || py != conp->vc_y) {
448 px = conp->vc_x;
449 py = conp->vc_y;
450 b += sprintf(b, "\033[%d;%dH", py + 1, px + 1);
451 }
452 promcon_puts(buf, b - buf);
453 break;
454 }
455}
456
457static int
458promcon_blank(struct vc_data *conp, int blank, int mode_switch)
459{
460 if (blank) {
461 promcon_puts("\033[H\033[J\033[7m \033[m\b", 15);
462 return 0;
463 } else {
464 /* Let console.c redraw */
465 return 1;
466 }
467}
468
469static int
470promcon_scroll(struct vc_data *conp, int t, int b, int dir, int count)
471{
472 unsigned char buf[256], *p = buf;
473 unsigned short *s;
474 int i;
475
476 if (console_blanked)
477 return 0;
478
479 p += promcon_start(conp, p);
480
481 switch (dir) {
482 case SM_UP:
483 if (b == ph + 1) {
484 p += sprintf(p, "\033[%dH\033[%dM", t + 1, count);
485 px = 0;
486 py = t;
487 p += promcon_end(conp, p);
488 promcon_puts(buf, p - buf);
489 break;
490 }
491
492 s = (unsigned short *)(conp->vc_origin
493 + (t + count) * conp->vc_size_row);
494
495 p += sprintf(p, "\033[%dH", t + 1);
496
497 for (i = t; i < b - count; i++)
498 s = promcon_repaint_line(s, buf, &p);
499
500 for (; i < b - 1; i++) {
501 strcpy(p, "\033[K\n");
502 p += 4;
503 if (p - buf >= 224) {
504 promcon_puts(buf, p - buf);
505 p = buf;
506 }
507 }
508
509 strcpy(p, "\033[K");
510 p += 3;
511
512 p += promcon_end(conp, p);
513 promcon_puts(buf, p - buf);
514 break;
515
516 case SM_DOWN:
517 if (b == ph + 1) {
518 p += sprintf(p, "\033[%dH\033[%dL", t + 1, count);
519 px = 0;
520 py = t;
521 p += promcon_end(conp, p);
522 promcon_puts(buf, p - buf);
523 break;
524 }
525
526 s = (unsigned short *)(conp->vc_origin + t * conp->vc_size_row);
527
528 p += sprintf(p, "\033[%dH", t + 1);
529
530 for (i = t; i < t + count; i++) {
531 strcpy(p, "\033[K\n");
532 p += 4;
533 if (p - buf >= 224) {
534 promcon_puts(buf, p - buf);
535 p = buf;
536 }
537 }
538
539 for (; i < b; i++)
540 s = promcon_repaint_line(s, buf, &p);
541
542 p += promcon_end(conp, p);
543 promcon_puts(buf, p - buf);
544 break;
545 }
546
547 return 0;
548}
549
550#if !(PROMCON_COLOR)
551static u8 promcon_build_attr(struct vc_data *conp, u8 _color, u8 _intensity,
552 u8 _blink, u8 _underline, u8 _reverse, u8 _italic)
553{
554 return (_reverse) ? 0xf : 0x7;
555}
556#endif
557
558/*
559 * The console 'switch' structure for the VGA based console
560 */
561
562static int promcon_dummy(void)
563{
564 return 0;
565}
566
567#define DUMMY (void *) promcon_dummy
568
569const struct consw prom_con = {
570 .owner = THIS_MODULE,
571 .con_startup = promcon_startup,
572 .con_init = promcon_init,
573 .con_deinit = promcon_deinit,
574 .con_clear = promcon_clear,
575 .con_putc = promcon_putc,
576 .con_putcs = promcon_putcs,
577 .con_cursor = promcon_cursor,
578 .con_scroll = promcon_scroll,
579 .con_bmove = promcon_bmove,
580 .con_switch = promcon_switch,
581 .con_blank = promcon_blank,
582 .con_set_palette = DUMMY,
583 .con_scrolldelta = DUMMY,
584#if !(PROMCON_COLOR)
585 .con_build_attr = promcon_build_attr,
586#endif
587};
588
589void __init prom_con_init(void)
590{
591#ifdef CONFIG_DUMMY_CONSOLE
592 if (conswitchp == &dummy_con)
593 take_over_console(&prom_con, 0, MAX_NR_CONSOLES-1, 1);
594 else
595#endif
596 if (conswitchp == &prom_con)
597 promcon_init_unimap(vc_cons[fg_console].d);
598}
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