1 /*
2 * newport_con.c: Abscon for newport hardware
3 *
4 * (C) 1998 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
5 * (C) 1999 Ulf Carlsson (ulfc@thepuffingruop.com)
6 *
7 * This driver is based on sgicons.c and cons_newport.
8 *
9 * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
10 * Copyright (C) 1997 Miguel de Icaza (miguel@nuclecu.unam.mx)
11 */
12 #include <linux/init.h>
13 #include <linux/kernel.h>
14 #include <linux/errno.h>
15 #include <linux/kd.h>
16 #include <linux/selection.h>
17 #include <linux/console.h>
18 #include <linux/vt_kern.h>
19 #include <linux/mm.h>
20 #include <linux/module.h>
21 #include <linux/slab.h>
22
23 #include <asm/io.h>
24 #include <asm/uaccess.h>
25 #include <asm/page.h>
26 #include <asm/pgtable.h>
27 #include <asm/gio_device.h>
28
29 #include <video/newport.h>
30
31 #include <linux/linux_logo.h>
32 #include <linux/font.h>
33
34 #define NEWPORT_LEN 0x10000
35
36 #define FONT_DATA ((unsigned char *)font_vga_8x16.data)
37
38 static unsigned char *font_data[MAX_NR_CONSOLES];
39
40 static struct newport_regs *npregs;
41 static unsigned long newport_addr;
42
43 static int logo_active;
44 static int topscan;
45 static int xcurs_correction = 29;
46 static int newport_xsize;
47 static int newport_ysize;
48 static int newport_has_init;
49
50 static int newport_set_def_font(int unit, struct console_font *op);
51
52 #define BMASK(c) (c << 24)
53
54 #define RENDER(regs, cp) do { \
55 (regs)->go.zpattern = BMASK((cp)[0x0]); (regs)->go.zpattern = BMASK((cp)[0x1]); \
56 (regs)->go.zpattern = BMASK((cp)[0x2]); (regs)->go.zpattern = BMASK((cp)[0x3]); \
57 (regs)->go.zpattern = BMASK((cp)[0x4]); (regs)->go.zpattern = BMASK((cp)[0x5]); \
58 (regs)->go.zpattern = BMASK((cp)[0x6]); (regs)->go.zpattern = BMASK((cp)[0x7]); \
59 (regs)->go.zpattern = BMASK((cp)[0x8]); (regs)->go.zpattern = BMASK((cp)[0x9]); \
60 (regs)->go.zpattern = BMASK((cp)[0xa]); (regs)->go.zpattern = BMASK((cp)[0xb]); \
61 (regs)->go.zpattern = BMASK((cp)[0xc]); (regs)->go.zpattern = BMASK((cp)[0xd]); \
62 (regs)->go.zpattern = BMASK((cp)[0xe]); (regs)->go.zpattern = BMASK((cp)[0xf]); \
63 } while(0)
64
65 #define TESTVAL 0xdeadbeef
66 #define XSTI_TO_FXSTART(val) (((val) & 0xffff) << 11)
67
newport_render_background(int xstart,int ystart,int xend,int yend,int ci)68 static inline void newport_render_background(int xstart, int ystart,
69 int xend, int yend, int ci)
70 {
71 newport_wait(npregs);
72 npregs->set.wrmask = 0xffffffff;
73 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
74 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX
75 | NPORT_DMODE0_STOPY);
76 npregs->set.colori = ci;
77 npregs->set.xystarti =
78 (xstart << 16) | ((ystart + topscan) & 0x3ff);
79 npregs->go.xyendi =
80 ((xend + 7) << 16) | ((yend + topscan + 15) & 0x3ff);
81 }
82
newport_init_cmap(void)83 static inline void newport_init_cmap(void)
84 {
85 unsigned short i;
86
87 for (i = 0; i < 16; i++) {
88 newport_bfwait(npregs);
89 newport_cmap_setaddr(npregs, color_table[i]);
90 newport_cmap_setrgb(npregs,
91 default_red[i],
92 default_grn[i], default_blu[i]);
93 }
94 }
95
newport_show_logo(void)96 static const struct linux_logo *newport_show_logo(void)
97 {
98 #ifdef CONFIG_LOGO_SGI_CLUT224
99 const struct linux_logo *logo = fb_find_logo(8);
100 const unsigned char *clut;
101 const unsigned char *data;
102 unsigned long i;
103
104 if (!logo)
105 return NULL;
106 clut = logo->clut;
107 data = logo->data;
108
109 for (i = 0; i < logo->clutsize; i++) {
110 newport_bfwait(npregs);
111 newport_cmap_setaddr(npregs, i + 0x20);
112 newport_cmap_setrgb(npregs, clut[0], clut[1], clut[2]);
113 clut += 3;
114 }
115
116 newport_wait(npregs);
117 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
118 NPORT_DMODE0_CHOST);
119
120 npregs->set.xystarti = ((newport_xsize - logo->width) << 16) | (0);
121 npregs->set.xyendi = ((newport_xsize - 1) << 16);
122 newport_wait(npregs);
123
124 for (i = 0; i < logo->width*logo->height; i++)
125 npregs->go.hostrw0 = *data++ << 24;
126
127 return logo;
128 #endif /* CONFIG_LOGO_SGI_CLUT224 */
129 }
130
newport_clear_screen(int xstart,int ystart,int xend,int yend,int ci)131 static inline void newport_clear_screen(int xstart, int ystart, int xend,
132 int yend, int ci)
133 {
134 if (logo_active)
135 return;
136
137 newport_wait(npregs);
138 npregs->set.wrmask = 0xffffffff;
139 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
140 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX
141 | NPORT_DMODE0_STOPY);
142 npregs->set.colori = ci;
143 npregs->set.xystarti = (xstart << 16) | ystart;
144 npregs->go.xyendi = (xend << 16) | yend;
145 }
146
newport_clear_lines(int ystart,int yend,int ci)147 static inline void newport_clear_lines(int ystart, int yend, int ci)
148 {
149 ystart = ((ystart << 4) + topscan) & 0x3ff;
150 yend = ((yend << 4) + topscan + 15) & 0x3ff;
151 newport_clear_screen(0, ystart, 1280 + 63, yend, ci);
152 }
153
newport_reset(void)154 static void newport_reset(void)
155 {
156 unsigned short treg;
157 int i;
158
159 newport_wait(npregs);
160 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
161 newport_vc2_set(npregs, VC2_IREG_CONTROL,
162 (treg | VC2_CTRL_EVIDEO));
163
164 treg = newport_vc2_get(npregs, VC2_IREG_CENTRY);
165 newport_vc2_set(npregs, VC2_IREG_RADDR, treg);
166 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM |
167 NPORT_DMODE_W2 | VC2_PROTOCOL);
168 for (i = 0; i < 128; i++) {
169 newport_bfwait(npregs);
170 if (i == 92 || i == 94)
171 npregs->set.dcbdata0.byshort.s1 = 0xff00;
172 else
173 npregs->set.dcbdata0.byshort.s1 = 0x0000;
174 }
175
176 newport_init_cmap();
177
178 /* turn off popup plane */
179 npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL |
180 XM9_CRS_CONFIG | NPORT_DMODE_W1);
181 npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE;
182 npregs->set.dcbmode = (DCB_XMAP1 | R_DCB_XMAP9_PROTOCOL |
183 XM9_CRS_CONFIG | NPORT_DMODE_W1);
184 npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE;
185
186 topscan = 0;
187 npregs->cset.topscan = 0x3ff;
188 npregs->cset.xywin = (4096 << 16) | 4096;
189
190 /* Clear the screen. */
191 newport_clear_screen(0, 0, 1280 + 63, 1024, 0);
192 }
193
194 /*
195 * calculate the actual screen size by reading
196 * the video timing out of the VC2
197 */
newport_get_screensize(void)198 static void newport_get_screensize(void)
199 {
200 int i, cols;
201 unsigned short ventry, treg;
202 unsigned short linetable[128]; /* should be enough */
203
204 ventry = newport_vc2_get(npregs, VC2_IREG_VENTRY);
205 newport_vc2_set(npregs, VC2_IREG_RADDR, ventry);
206 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM |
207 NPORT_DMODE_W2 | VC2_PROTOCOL);
208 for (i = 0; i < 128; i++) {
209 newport_bfwait(npregs);
210 linetable[i] = npregs->set.dcbdata0.byshort.s1;
211 }
212
213 newport_xsize = newport_ysize = 0;
214 for (i = 0; i < ARRAY_SIZE(linetable) - 1 && linetable[i + 1]; i += 2) {
215 cols = 0;
216 newport_vc2_set(npregs, VC2_IREG_RADDR, linetable[i]);
217 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM |
218 NPORT_DMODE_W2 | VC2_PROTOCOL);
219 do {
220 newport_bfwait(npregs);
221 treg = npregs->set.dcbdata0.byshort.s1;
222 if ((treg & 1) == 0)
223 cols += (treg >> 7) & 0xfe;
224 if ((treg & 0x80) == 0) {
225 newport_bfwait(npregs);
226 treg = npregs->set.dcbdata0.byshort.s1;
227 }
228 } while ((treg & 0x8000) == 0);
229 if (cols) {
230 if (cols > newport_xsize)
231 newport_xsize = cols;
232 newport_ysize += linetable[i + 1];
233 }
234 }
235 printk("NG1: Screensize %dx%d\n", newport_xsize, newport_ysize);
236 }
237
newport_get_revisions(void)238 static void newport_get_revisions(void)
239 {
240 unsigned int tmp;
241 unsigned int board_rev;
242 unsigned int rex3_rev;
243 unsigned int vc2_rev;
244 unsigned int cmap_rev;
245 unsigned int xmap9_rev;
246 unsigned int bt445_rev;
247 unsigned int bitplanes;
248
249 rex3_rev = npregs->cset.status & NPORT_STAT_VERS;
250
251 npregs->set.dcbmode = (DCB_CMAP0 | NCMAP_PROTOCOL |
252 NCMAP_REGADDR_RREG | NPORT_DMODE_W1);
253 tmp = npregs->set.dcbdata0.bybytes.b3;
254 cmap_rev = tmp & 7;
255 board_rev = (tmp >> 4) & 7;
256 bitplanes = ((board_rev > 1) && (tmp & 0x80)) ? 8 : 24;
257
258 npregs->set.dcbmode = (DCB_CMAP1 | NCMAP_PROTOCOL |
259 NCMAP_REGADDR_RREG | NPORT_DMODE_W1);
260 tmp = npregs->set.dcbdata0.bybytes.b3;
261 if ((tmp & 7) < cmap_rev)
262 cmap_rev = (tmp & 7);
263
264 vc2_rev = (newport_vc2_get(npregs, VC2_IREG_CONFIG) >> 5) & 7;
265
266 npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL |
267 XM9_CRS_REVISION | NPORT_DMODE_W1);
268 xmap9_rev = npregs->set.dcbdata0.bybytes.b3 & 7;
269
270 npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL |
271 BT445_CSR_ADDR_REG | NPORT_DMODE_W1);
272 npregs->set.dcbdata0.bybytes.b3 = BT445_REVISION_REG;
273 npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL |
274 BT445_CSR_REVISION | NPORT_DMODE_W1);
275 bt445_rev = (npregs->set.dcbdata0.bybytes.b3 >> 4) - 0x0a;
276
277 #define L(a) (char)('A'+(a))
278 printk
279 ("NG1: Revision %d, %d bitplanes, REX3 revision %c, VC2 revision %c, xmap9 revision %c, cmap revision %c, bt445 revision %c\n",
280 board_rev, bitplanes, L(rex3_rev), L(vc2_rev), L(xmap9_rev),
281 L(cmap_rev ? (cmap_rev + 1) : 0), L(bt445_rev));
282 #undef L
283
284 if (board_rev == 3) /* I don't know all affected revisions */
285 xcurs_correction = 21;
286 }
287
newport_exit(void)288 static void newport_exit(void)
289 {
290 int i;
291
292 /* free memory used by user font */
293 for (i = 0; i < MAX_NR_CONSOLES; i++)
294 newport_set_def_font(i, NULL);
295 }
296
297 /* Can't be __init, do_take_over_console may call it later */
newport_startup(void)298 static const char *newport_startup(void)
299 {
300 int i;
301
302 npregs->cset.config = NPORT_CFG_GD0;
303
304 if (newport_wait(npregs))
305 goto out_unmap;
306
307 npregs->set.xstarti = TESTVAL;
308 if (npregs->set._xstart.word != XSTI_TO_FXSTART(TESTVAL))
309 goto out_unmap;
310
311 for (i = 0; i < MAX_NR_CONSOLES; i++)
312 font_data[i] = FONT_DATA;
313
314 newport_reset();
315 newport_get_revisions();
316 newport_get_screensize();
317 newport_has_init = 1;
318
319 return "SGI Newport";
320
321 out_unmap:
322 return NULL;
323 }
324
newport_init(struct vc_data * vc,int init)325 static void newport_init(struct vc_data *vc, int init)
326 {
327 int cols, rows;
328
329 cols = newport_xsize / 8;
330 rows = newport_ysize / 16;
331 vc->vc_can_do_color = 1;
332 if (init) {
333 vc->vc_cols = cols;
334 vc->vc_rows = rows;
335 } else
336 vc_resize(vc, cols, rows);
337 }
338
newport_deinit(struct vc_data * c)339 static void newport_deinit(struct vc_data *c)
340 {
341 if (!con_is_bound(&newport_con) && newport_has_init) {
342 newport_exit();
343 newport_has_init = 0;
344 }
345 }
346
newport_clear(struct vc_data * vc,int sy,int sx,int height,int width)347 static void newport_clear(struct vc_data *vc, int sy, int sx, int height,
348 int width)
349 {
350 int xend = ((sx + width) << 3) - 1;
351 int ystart = ((sy << 4) + topscan) & 0x3ff;
352 int yend = (((sy + height) << 4) + topscan - 1) & 0x3ff;
353
354 if (logo_active)
355 return;
356
357 if (ystart < yend) {
358 newport_clear_screen(sx << 3, ystart, xend, yend,
359 (vc->vc_color & 0xf0) >> 4);
360 } else {
361 newport_clear_screen(sx << 3, ystart, xend, 1023,
362 (vc->vc_color & 0xf0) >> 4);
363 newport_clear_screen(sx << 3, 0, xend, yend,
364 (vc->vc_color & 0xf0) >> 4);
365 }
366 }
367
newport_putc(struct vc_data * vc,int charattr,int ypos,int xpos)368 static void newport_putc(struct vc_data *vc, int charattr, int ypos,
369 int xpos)
370 {
371 unsigned char *p;
372
373 p = &font_data[vc->vc_num][(charattr & 0xff) << 4];
374 charattr = (charattr >> 8) & 0xff;
375 xpos <<= 3;
376 ypos <<= 4;
377
378 newport_render_background(xpos, ypos, xpos, ypos,
379 (charattr & 0xf0) >> 4);
380
381 /* Set the color and drawing mode. */
382 newport_wait(npregs);
383 npregs->set.colori = charattr & 0xf;
384 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
385 NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB |
386 NPORT_DMODE0_L32);
387
388 /* Set coordinates for bitmap operation. */
389 npregs->set.xystarti = (xpos << 16) | ((ypos + topscan) & 0x3ff);
390 npregs->set.xyendi = ((xpos + 7) << 16);
391 newport_wait(npregs);
392
393 /* Go, baby, go... */
394 RENDER(npregs, p);
395 }
396
newport_putcs(struct vc_data * vc,const unsigned short * s,int count,int ypos,int xpos)397 static void newport_putcs(struct vc_data *vc, const unsigned short *s,
398 int count, int ypos, int xpos)
399 {
400 int i;
401 int charattr;
402 unsigned char *p;
403
404 charattr = (scr_readw(s) >> 8) & 0xff;
405
406 xpos <<= 3;
407 ypos <<= 4;
408
409 if (!logo_active)
410 /* Clear the area behing the string */
411 newport_render_background(xpos, ypos,
412 xpos + ((count - 1) << 3), ypos,
413 (charattr & 0xf0) >> 4);
414
415 newport_wait(npregs);
416
417 /* Set the color and drawing mode. */
418 npregs->set.colori = charattr & 0xf;
419 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
420 NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB |
421 NPORT_DMODE0_L32);
422
423 for (i = 0; i < count; i++, xpos += 8) {
424 p = &font_data[vc->vc_num][(scr_readw(s++) & 0xff) << 4];
425
426 newport_wait(npregs);
427
428 /* Set coordinates for bitmap operation. */
429 npregs->set.xystarti =
430 (xpos << 16) | ((ypos + topscan) & 0x3ff);
431 npregs->set.xyendi = ((xpos + 7) << 16);
432
433 /* Go, baby, go... */
434 RENDER(npregs, p);
435 }
436 }
437
newport_cursor(struct vc_data * vc,int mode)438 static void newport_cursor(struct vc_data *vc, int mode)
439 {
440 unsigned short treg;
441 int xcurs, ycurs;
442
443 switch (mode) {
444 case CM_ERASE:
445 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
446 newport_vc2_set(npregs, VC2_IREG_CONTROL,
447 (treg & ~(VC2_CTRL_ECDISP)));
448 break;
449
450 case CM_MOVE:
451 case CM_DRAW:
452 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
453 newport_vc2_set(npregs, VC2_IREG_CONTROL,
454 (treg | VC2_CTRL_ECDISP));
455 xcurs = (vc->vc_pos - vc->vc_visible_origin) / 2;
456 ycurs = ((xcurs / vc->vc_cols) << 4) + 31;
457 xcurs = ((xcurs % vc->vc_cols) << 3) + xcurs_correction;
458 newport_vc2_set(npregs, VC2_IREG_CURSX, xcurs);
459 newport_vc2_set(npregs, VC2_IREG_CURSY, ycurs);
460 }
461 }
462
newport_switch(struct vc_data * vc)463 static int newport_switch(struct vc_data *vc)
464 {
465 static int logo_drawn = 0;
466
467 topscan = 0;
468 npregs->cset.topscan = 0x3ff;
469
470 if (!logo_drawn) {
471 if (newport_show_logo()) {
472 logo_drawn = 1;
473 logo_active = 1;
474 }
475 }
476
477 return 1;
478 }
479
newport_blank(struct vc_data * c,int blank,int mode_switch)480 static int newport_blank(struct vc_data *c, int blank, int mode_switch)
481 {
482 unsigned short treg;
483
484 if (blank == 0) {
485 /* unblank console */
486 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
487 newport_vc2_set(npregs, VC2_IREG_CONTROL,
488 (treg | VC2_CTRL_EDISP));
489 } else {
490 /* blank console */
491 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
492 newport_vc2_set(npregs, VC2_IREG_CONTROL,
493 (treg & ~(VC2_CTRL_EDISP)));
494 }
495 return 1;
496 }
497
newport_set_font(int unit,struct console_font * op)498 static int newport_set_font(int unit, struct console_font *op)
499 {
500 int w = op->width;
501 int h = op->height;
502 int size = h * op->charcount;
503 int i;
504 unsigned char *new_data, *data = op->data, *p;
505
506 /* ladis: when I grow up, there will be a day... and more sizes will
507 * be supported ;-) */
508 if ((w != 8) || (h != 16)
509 || (op->charcount != 256 && op->charcount != 512))
510 return -EINVAL;
511
512 if (!(new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size,
513 GFP_USER))) return -ENOMEM;
514
515 new_data += FONT_EXTRA_WORDS * sizeof(int);
516 FNTSIZE(new_data) = size;
517 FNTCHARCNT(new_data) = op->charcount;
518 REFCOUNT(new_data) = 0; /* usage counter */
519 FNTSUM(new_data) = 0;
520
521 p = new_data;
522 for (i = 0; i < op->charcount; i++) {
523 memcpy(p, data, h);
524 data += 32;
525 p += h;
526 }
527
528 /* check if font is already used by other console */
529 for (i = 0; i < MAX_NR_CONSOLES; i++) {
530 if (font_data[i] != FONT_DATA
531 && FNTSIZE(font_data[i]) == size
532 && !memcmp(font_data[i], new_data, size)) {
533 kfree(new_data - FONT_EXTRA_WORDS * sizeof(int));
534 /* current font is the same as the new one */
535 if (i == unit)
536 return 0;
537 new_data = font_data[i];
538 break;
539 }
540 }
541 /* old font is user font */
542 if (font_data[unit] != FONT_DATA) {
543 if (--REFCOUNT(font_data[unit]) == 0)
544 kfree(font_data[unit] -
545 FONT_EXTRA_WORDS * sizeof(int));
546 }
547 REFCOUNT(new_data)++;
548 font_data[unit] = new_data;
549
550 return 0;
551 }
552
newport_set_def_font(int unit,struct console_font * op)553 static int newport_set_def_font(int unit, struct console_font *op)
554 {
555 if (font_data[unit] != FONT_DATA) {
556 if (--REFCOUNT(font_data[unit]) == 0)
557 kfree(font_data[unit] -
558 FONT_EXTRA_WORDS * sizeof(int));
559 font_data[unit] = FONT_DATA;
560 }
561
562 return 0;
563 }
564
newport_font_default(struct vc_data * vc,struct console_font * op,char * name)565 static int newport_font_default(struct vc_data *vc, struct console_font *op, char *name)
566 {
567 return newport_set_def_font(vc->vc_num, op);
568 }
569
newport_font_set(struct vc_data * vc,struct console_font * font,unsigned flags)570 static int newport_font_set(struct vc_data *vc, struct console_font *font, unsigned flags)
571 {
572 return newport_set_font(vc->vc_num, font);
573 }
574
newport_set_palette(struct vc_data * vc,unsigned char * table)575 static int newport_set_palette(struct vc_data *vc, unsigned char *table)
576 {
577 return -EINVAL;
578 }
579
newport_scrolldelta(struct vc_data * vc,int lines)580 static int newport_scrolldelta(struct vc_data *vc, int lines)
581 {
582 /* there is (nearly) no off-screen memory, so we can't scroll back */
583 return 0;
584 }
585
newport_scroll(struct vc_data * vc,int t,int b,int dir,int lines)586 static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
587 int lines)
588 {
589 int count, x, y;
590 unsigned short *s, *d;
591 unsigned short chattr;
592
593 logo_active = 0; /* it's time to disable the logo now.. */
594
595 if (t == 0 && b == vc->vc_rows) {
596 if (dir == SM_UP) {
597 topscan = (topscan + (lines << 4)) & 0x3ff;
598 newport_clear_lines(vc->vc_rows - lines,
599 vc->vc_rows - 1,
600 (vc->vc_color & 0xf0) >> 4);
601 } else {
602 topscan = (topscan + (-lines << 4)) & 0x3ff;
603 newport_clear_lines(0, lines - 1,
604 (vc->vc_color & 0xf0) >> 4);
605 }
606 npregs->cset.topscan = (topscan - 1) & 0x3ff;
607 return 0;
608 }
609
610 count = (b - t - lines) * vc->vc_cols;
611 if (dir == SM_UP) {
612 x = 0;
613 y = t;
614 s = (unsigned short *) (vc->vc_origin +
615 vc->vc_size_row * (t + lines));
616 d = (unsigned short *) (vc->vc_origin +
617 vc->vc_size_row * t);
618 while (count--) {
619 chattr = scr_readw(s++);
620 if (chattr != scr_readw(d)) {
621 newport_putc(vc, chattr, y, x);
622 scr_writew(chattr, d);
623 }
624 d++;
625 if (++x == vc->vc_cols) {
626 x = 0;
627 y++;
628 }
629 }
630 d = (unsigned short *) (vc->vc_origin +
631 vc->vc_size_row * (b - lines));
632 x = 0;
633 y = b - lines;
634 for (count = 0; count < (lines * vc->vc_cols); count++) {
635 if (scr_readw(d) != vc->vc_video_erase_char) {
636 newport_putc(vc, vc->vc_video_erase_char,
637 y, x);
638 scr_writew(vc->vc_video_erase_char, d);
639 }
640 d++;
641 if (++x == vc->vc_cols) {
642 x = 0;
643 y++;
644 }
645 }
646 } else {
647 x = vc->vc_cols - 1;
648 y = b - 1;
649 s = (unsigned short *) (vc->vc_origin +
650 vc->vc_size_row * (b - lines) - 2);
651 d = (unsigned short *) (vc->vc_origin +
652 vc->vc_size_row * b - 2);
653 while (count--) {
654 chattr = scr_readw(s--);
655 if (chattr != scr_readw(d)) {
656 newport_putc(vc, chattr, y, x);
657 scr_writew(chattr, d);
658 }
659 d--;
660 if (x-- == 0) {
661 x = vc->vc_cols - 1;
662 y--;
663 }
664 }
665 d = (unsigned short *) (vc->vc_origin +
666 vc->vc_size_row * t);
667 x = 0;
668 y = t;
669 for (count = 0; count < (lines * vc->vc_cols); count++) {
670 if (scr_readw(d) != vc->vc_video_erase_char) {
671 newport_putc(vc, vc->vc_video_erase_char,
672 y, x);
673 scr_writew(vc->vc_video_erase_char, d);
674 }
675 d++;
676 if (++x == vc->vc_cols) {
677 x = 0;
678 y++;
679 }
680 }
681 }
682 return 1;
683 }
684
newport_bmove(struct vc_data * vc,int sy,int sx,int dy,int dx,int h,int w)685 static void newport_bmove(struct vc_data *vc, int sy, int sx, int dy,
686 int dx, int h, int w)
687 {
688 short xs, ys, xe, ye, xoffs, yoffs;
689
690 xs = sx << 3;
691 xe = ((sx + w) << 3) - 1;
692 /*
693 * as bmove is only used to move stuff around in the same line
694 * (h == 1), we don't care about wrap arounds caused by topscan != 0
695 */
696 ys = ((sy << 4) + topscan) & 0x3ff;
697 ye = (((sy + h) << 4) - 1 + topscan) & 0x3ff;
698 xoffs = (dx - sx) << 3;
699 yoffs = (dy - sy) << 4;
700 if (xoffs > 0) {
701 /* move to the right, exchange starting points */
702 swap(xe, xs);
703 }
704 newport_wait(npregs);
705 npregs->set.drawmode0 = (NPORT_DMODE0_S2S | NPORT_DMODE0_BLOCK |
706 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX
707 | NPORT_DMODE0_STOPY);
708 npregs->set.xystarti = (xs << 16) | ys;
709 npregs->set.xyendi = (xe << 16) | ye;
710 npregs->go.xymove = (xoffs << 16) | yoffs;
711 }
712
newport_dummy(struct vc_data * c)713 static int newport_dummy(struct vc_data *c)
714 {
715 return 0;
716 }
717
718 #define DUMMY (void *) newport_dummy
719
720 const struct consw newport_con = {
721 .owner = THIS_MODULE,
722 .con_startup = newport_startup,
723 .con_init = newport_init,
724 .con_deinit = newport_deinit,
725 .con_clear = newport_clear,
726 .con_putc = newport_putc,
727 .con_putcs = newport_putcs,
728 .con_cursor = newport_cursor,
729 .con_scroll = newport_scroll,
730 .con_bmove = newport_bmove,
731 .con_switch = newport_switch,
732 .con_blank = newport_blank,
733 .con_font_set = newport_font_set,
734 .con_font_default = newport_font_default,
735 .con_set_palette = newport_set_palette,
736 .con_scrolldelta = newport_scrolldelta,
737 .con_set_origin = DUMMY,
738 .con_save_screen = DUMMY
739 };
740
newport_probe(struct gio_device * dev,const struct gio_device_id * id)741 static int newport_probe(struct gio_device *dev,
742 const struct gio_device_id *id)
743 {
744 int err;
745
746 if (!dev->resource.start)
747 return -EINVAL;
748
749 if (npregs)
750 return -EBUSY; /* we only support one Newport as console */
751
752 newport_addr = dev->resource.start + 0xF0000;
753 if (!request_mem_region(newport_addr, NEWPORT_LEN, "Newport"))
754 return -ENODEV;
755
756 npregs = (struct newport_regs *)/* ioremap cannot fail */
757 ioremap(newport_addr, sizeof(struct newport_regs));
758 console_lock();
759 err = do_take_over_console(&newport_con, 0, MAX_NR_CONSOLES - 1, 1);
760 console_unlock();
761
762 if (err) {
763 iounmap((void *)npregs);
764 release_mem_region(newport_addr, NEWPORT_LEN);
765 }
766 return err;
767 }
768
newport_remove(struct gio_device * dev)769 static void newport_remove(struct gio_device *dev)
770 {
771 give_up_console(&newport_con);
772 iounmap((void *)npregs);
773 release_mem_region(newport_addr, NEWPORT_LEN);
774 }
775
776 static struct gio_device_id newport_ids[] = {
777 { .id = 0x7e },
778 { .id = 0xff }
779 };
780
781 MODULE_ALIAS("gio:7e");
782
783 static struct gio_driver newport_driver = {
784 .name = "newport",
785 .id_table = newport_ids,
786 .probe = newport_probe,
787 .remove = newport_remove,
788 };
789
newport_console_init(void)790 int __init newport_console_init(void)
791 {
792 return gio_register_driver(&newport_driver);
793 }
794
newport_console_exit(void)795 void __exit newport_console_exit(void)
796 {
797 gio_unregister_driver(&newport_driver);
798 }
799
800 module_init(newport_console_init);
801 module_exit(newport_console_exit);
802
803 MODULE_LICENSE("GPL");
804