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[/] [or1k/] [trunk/] [or1ksim/] [peripheral/] [fb.c] - Blame information for rev 1748

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Line No. Rev Author Line
1 645 markom 
/* fb.c -- Simple frame buffer
2 1748 jeremybenn 
 
3 645 markom 
   Copyright (C) 2001 Marko Mlinar, markom@opencores.org
4 1748 jeremybenn 
   Copyright (C) 2008 Embecosm Limited
5 645 markom 
 
6 1748 jeremybenn 
   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
7 645 markom 
 
8 1748 jeremybenn 
   This file is part of Or1ksim, the OpenRISC 1000 Architectural Simulator.
9 645 markom 
 
10 1748 jeremybenn 
   This program is free software; you can redistribute it and/or modify it
11 
   under the terms of the GNU General Public License as published by the Free
12 
   Software Foundation; either version 3 of the License, or (at your option)
13 
   any later version.
14 645 markom 
 
15 1748 jeremybenn 
   This program is distributed in the hope that it will be useful, but WITHOUT
16 
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 
   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
18 
   more details.
19 645 markom 
 
20 1748 jeremybenn 
   You should have received a copy of the GNU General Public License along
21 
   with this program.  If not, see <http://www.gnu.org/licenses/>.  */
22 1350 nogj 
 
23 1748 jeremybenn 
/* This program is commented throughout in a fashion suitable for processing
24 
   with Doxygen. */
25 
 
26 
 
27 
/* Autoconf and/or portability configuration */
28 1350 nogj 
#include "config.h"
29 1748 jeremybenn 
#include "port.h"
30 1350 nogj 
 
31 1748 jeremybenn 
/* System includes */
32 
#include <stdlib.h>
33 
#include <stdio.h>
34 1350 nogj 
 
35 1748 jeremybenn 
/* Package includes */
36 1350 nogj 
#include "arch.h"
37 645 markom 
#include "sim-config.h"
38 
#include "abstract.h"
39 805 markom 
#include "sched.h"
40 1748 jeremybenn 
#include "toplevel-support.h"
41 645 markom 
 
42 1748 jeremybenn 
 
43 
#define FB_SIZEX           640
44 
#define FB_SIZEY           480
45 
 
46 
#define CAM_SIZEX          352
47 
#define CAM_SIZEY          288
48 
 
49 
/*! Relative amount of time spent in refresh */
50 
#define REFRESH_DIVIDER     20
51 
 
52 
#define FB_CTRL            0x0000
53 
#define FB_BUFADDR         0x0004
54 
#define FB_CAMBUFADDR      0x0008
55 
#define FB_CAMPOSADDR      0x000c
56 
#define FB_PAL             0x0400
57 
 
58 799 simons 
#define FB_WRAP (512*1024)
59 
 
60 1748 jeremybenn 
struct fb_state
61 
{
62 1461 nogj 
  int enabled;
63 1369 nogj 
  unsigned long pal[256];
64 
  int ctrl;
65 
  int pic;
66 
  int in_refresh;
67 
  int refresh_count;
68 
  oraddr_t addr;
69 
  oraddr_t cam_addr;
70 
  int camerax;
71 
  int cameray;
72 
  int camera_pos;
73 
  oraddr_t baseaddr;
74 
  int refresh;
75 
  int refresh_rate;
76 
  char *filename;
77 
};
78 645 markom 
 
79 1748 jeremybenn 
static void
80 
change_buf_addr (struct fb_state *fb, oraddr_t addr)
81 647 markom 
{
82 1369 nogj 
  fb->addr = addr;
83 647 markom 
}
84 
 
85 
/* Write a register */
86 1748 jeremybenn 
static void
87 
fb_write32 (oraddr_t addr, uint32_t value, void *dat)
88 647 markom 
{
89 1369 nogj 
  struct fb_state *fb = dat;
90 
 
91 1748 jeremybenn 
  switch (addr)
92 
    {
93 
    case FB_CTRL:
94 
      fb->ctrl = value;
95 
      break;
96 
    case FB_BUFADDR:
97 
      change_buf_addr (fb, value);
98 
      break;
99 
    case FB_CAMBUFADDR:
100 
      fb->cam_addr = value;
101 
      break;
102 
    case FB_CAMPOSADDR:
103 
      fb->camera_pos = value;
104 
      fb->camerax = value % FB_SIZEX;
105 
      fb->cameray = value / FB_SIZEX;
106 
      break;
107 647 markom 
    default:
108 1486 nogj 
      addr -= FB_PAL;
109 
      addr /= 4;
110 1748 jeremybenn 
      if (addr < 0 || addr >= 256)
111 
        {
112 
          fprintf (stderr, "Write out of palette buffer (0x%" PRIxADDR ")!\n",
113 
                   addr);
114 
        }
115 
      else
116 
        fb->pal[addr] = value;
117 647 markom 
      break;
118 1748 jeremybenn 
    }
119 647 markom 
}
120 
 
121 645 markom 
/* Read a register */
122 1748 jeremybenn 
static oraddr_t
123 
fb_read32 (oraddr_t addr, void *dat)
124 645 markom 
{
125 1369 nogj 
  struct fb_state *fb = dat;
126 
 
127 1748 jeremybenn 
  switch (addr)
128 
    {
129 845 markom 
    case FB_CTRL:
130 1748 jeremybenn 
      return (fb->ctrl & ~0xff000000) | (fb->
131 
                                         in_refresh ? 0x80000000 : 0) |
132 
        ((unsigned long) (fb->refresh_count & 0x7f) << 24);
133 845 markom 
      break;
134 1748 jeremybenn 
    case FB_BUFADDR:
135 
      return fb->addr;
136 
      break;
137 
    case FB_CAMBUFADDR:
138 
      return fb->cam_addr;
139 
      break;
140 
    case FB_CAMPOSADDR:
141 
      return fb->camera_pos;
142 
      break;
143 647 markom 
    default:
144 1486 nogj 
      addr -= FB_PAL;
145 
      addr /= 4;
146 1748 jeremybenn 
      if (addr < 0 || addr >= 256)
147 
        {
148 
          fprintf (stderr, "Read out of palette buffer (0x%" PRIxADDR ")!\n",
149 
                   addr);
150 
          return 0;
151 
        }
152 
      else
153 
        return fb->pal[addr];
154 
    }
155 645 markom 
}
156 
 
157 
/* define these also for big endian */
158 859 markom 
#if __BIG_ENDIAN__
159 1244 hpanther 
#define CNV32(x) (\
160 859 markom 
     ((((x) >> 24) & 0xff) << 0)\
161 
   | ((((x) >> 16) & 0xff) << 8)\
162 
   | ((((x) >> 8) & 0xff) << 16)\
163 
   | ((((x) >> 0) & 0xff) << 24))
164 1244 hpanther 
#define CNV16(x) (\
165 
     ((((x) >> 8) & 0xff) << 0)\
166 859 markom 
   | ((((x) >> 0) & 0xff) << 8))
167 
#else
168 645 markom 
#define CNV16(x) (x)
169 
#define CNV32(x) (x)
170 859 markom 
#endif
171 645 markom 
 
172 
/* Dumps a bmp file, based on current image */
173 1748 jeremybenn 
static int
174 
fb_dump_image8 (struct fb_state *fb, char *filename)
175 645 markom 
{
176 
  int sx = FB_SIZEX;
177 
  int sy = FB_SIZEY;
178 1557 nogj 
  int i, x = 0, y = 0;
179 645 markom 
  FILE *fo;
180 
 
181 
  unsigned short int u16;
182 
  unsigned long int u32;
183 1748 jeremybenn 
 
184 
  if (config.sim.verbose)
185 
    PRINTF ("Creating %s...", filename);
186 645 markom 
  fo = fopen (filename, "wb+");
187 1748 jeremybenn 
  u16 = CNV16 (19778);          /* BM */
188 
  if (!fwrite (&u16, 2, 1, fo))
189 
    return 1;
190 
  u32 = CNV32 (14 + 40 + sx * sy + 1024);       /* size */
191 
  if (!fwrite (&u32, 4, 1, fo))
192 
    return 1;
193 
  u32 = CNV32 (0);               /* reserved */
194 
  if (!fwrite (&u32, 4, 1, fo))
195 
    return 1;
196 
  u32 = 14 + 40 + 1024;         /* offset */
197 
  if (!fwrite (&u32, 4, 1, fo))
198 
    return 1;
199 645 markom 
 
200 1748 jeremybenn 
  u32 = CNV32 (40);             /* header size */
201 
  if (!fwrite (&u32, 4, 1, fo))
202 
    return 1;
203 
  u32 = CNV32 (sx);             /* width */
204 
  if (!fwrite (&u32, 4, 1, fo))
205 
    return 1;
206 
  u32 = CNV32 (sy);             /* height */
207 
  if (!fwrite (&u32, 4, 1, fo))
208 
    return 1;
209 
  u16 = CNV16 (1);              /* planes */
210 
  if (!fwrite (&u16, 2, 1, fo))
211 
    return 1;
212 
  u16 = CNV16 (8);              /* bits */
213 
  if (!fwrite (&u16, 2, 1, fo))
214 
    return 1;
215 
  u32 = CNV32 (0);               /* compression */
216 
  if (!fwrite (&u32, 4, 1, fo))
217 
    return 1;
218 
  u32 = CNV32 (x * y);          /* image size */
219 
  if (!fwrite (&u32, 4, 1, fo))
220 
    return 1;
221 
  u32 = CNV32 (2835);           /* x resolution */
222 
  if (!fwrite (&u32, 4, 1, fo))
223 
    return 1;
224 
  u32 = CNV32 (2835);           /* y resolution */
225 
  if (!fwrite (&u32, 4, 1, fo))
226 
    return 1;
227 
  u32 = CNV32 (0);               /* ncolours = 0; should be generated */
228 
  if (!fwrite (&u32, 4, 1, fo))
229 
    return 1;
230 
  u32 = CNV32 (0);               /* important colours; all are important */
231 
  if (!fwrite (&u32, 4, 1, fo))
232 
    return 1;
233 
 
234 
  for (i = 0; i < 256; i++)
235 
    {
236 
      unsigned long val, d;
237 
      d = fb->pal[i];
238 766 simons 
#if 1
239 1748 jeremybenn 
      val = ((d >> 0) & 0x1f) << 3;      /* Blue */
240 
      val |= ((d >> 5) & 0x3f) << 10;   /* Green */
241 
      val |= ((d >> 11) & 0x1f) << 19;  /* Red */
242 
#else
243 
      val = CNV32 (pal[i]);
244 766 simons 
#endif
245 1748 jeremybenn 
      if (!fwrite (&val, 4, 1, fo))
246 
        return 1;
247 
    }
248 645 markom 
 
249 1748 jeremybenn 
  if (config.sim.verbose)
250 
    PRINTF ("(%i,%i)", sx, sy);
251 645 markom 
  /* Data is stored upside down */
252 1748 jeremybenn 
  for (y = sy - 1; y >= 0; y--)
253 
    {
254 
      int align = (4 - sx) % 4;
255 
      int zero = CNV32 (0);
256 
      int add;
257 
      while (align < 0)
258 
        align += 4;
259 
      for (x = 0; x < sx; x++)
260 
        {
261 
          add =
262 
            (fb->
263 
             addr & ~(FB_WRAP - 1)) | ((fb->addr + y * sx + x) & (FB_WRAP -
264 
                                                                  1));
265 
          fputc (eval_direct8 (add, 0, 0), fo);
266 
        }
267 
      if (align && !fwrite (&zero, align, 1, fo))
268 
        return 1;
269 799 simons 
    }
270 645 markom 
 
271 1748 jeremybenn 
  if (config.sim.verbose)
272 
    PRINTF ("DONE\n");
273 645 markom 
  fclose (fo);
274 
  return 0;
275 
}
276 
 
277 859 markom 
/* Dumps a bmp file, based on current image */
278 1748 jeremybenn 
static int
279 
fb_dump_image24 (struct fb_state *fb, char *filename)
280 859 markom 
{
281 
  int sx = FB_SIZEX;
282 
  int sy = FB_SIZEY;
283 1557 nogj 
  int x = 0, y = 0;
284 859 markom 
  FILE *fo;
285 
 
286 
  unsigned short int u16;
287 
  unsigned long int u32;
288 1484 nogj 
 
289 1748 jeremybenn 
  if (config.sim.verbose)
290 
    PRINTF ("Creating %s...", filename);
291 859 markom 
  fo = fopen (filename, "wb+");
292 1748 jeremybenn 
  u16 = CNV16 (19778);          /* BM */
293 
  if (!fwrite (&u16, 2, 1, fo))
294 
    return 1;
295 
  u32 = CNV32 (14 + 40 + sx * sy * 3);  /* size */
296 
  if (!fwrite (&u32, 4, 1, fo))
297 
    return 1;
298 
  u32 = CNV32 (0);               /* reserved */
299 
  if (!fwrite (&u32, 4, 1, fo))
300 
    return 1;
301 
  u32 = 14 + 40;                /* offset */
302 
  if (!fwrite (&u32, 4, 1, fo))
303 
    return 1;
304 859 markom 
 
305 1748 jeremybenn 
  u32 = CNV32 (40);             /* header size */
306 
  if (!fwrite (&u32, 4, 1, fo))
307 
    return 1;
308 
  u32 = CNV32 (sx);             /* width */
309 
  if (!fwrite (&u32, 4, 1, fo))
310 
    return 1;
311 
  u32 = CNV32 (sy);             /* height */
312 
  if (!fwrite (&u32, 4, 1, fo))
313 
    return 1;
314 
  u16 = CNV16 (1);              /* planes */
315 
  if (!fwrite (&u16, 2, 1, fo))
316 
    return 1;
317 
  u16 = CNV16 (24);             /* bits */
318 
  if (!fwrite (&u16, 2, 1, fo))
319 
    return 1;
320 
  u32 = CNV32 (0);               /* compression */
321 
  if (!fwrite (&u32, 4, 1, fo))
322 
    return 1;
323 
  u32 = CNV32 (x * y * 3);      /* image size */
324 
  if (!fwrite (&u32, 4, 1, fo))
325 
    return 1;
326 
  u32 = CNV32 (2835);           /* x resolution */
327 
  if (!fwrite (&u32, 4, 1, fo))
328 
    return 1;
329 
  u32 = CNV32 (2835);           /* y resolution */
330 
  if (!fwrite (&u32, 4, 1, fo))
331 
    return 1;
332 
  u32 = CNV32 (0);               /* ncolours = 0; should be generated */
333 
  if (!fwrite (&u32, 4, 1, fo))
334 
    return 1;
335 
  u32 = CNV32 (0);               /* important colours; all are important */
336 
  if (!fwrite (&u32, 4, 1, fo))
337 
    return 1;
338 
 
339 
  if (config.sim.verbose)
340 
    PRINTF ("(%i,%i)", sx, sy);
341 859 markom 
  /* Data is stored upside down */
342 1748 jeremybenn 
  for (y = sy - 1; y >= 0; y--)
343 
    {
344 
      unsigned char line[FB_SIZEX][3];
345 
      for (x = 0; x < sx; x++)
346 
        if (y >= fb->cameray && x >= fb->camerax
347 
            && y < fb->cameray + CAM_SIZEY && x < fb->camerax + CAM_SIZEX)
348 
          {
349 
            int add =
350 
              (fb->cam_addr +
351 
               (x - fb->camerax + (y - fb->cameray) * CAM_SIZEX) * 2) ^ 2;
352 
            unsigned short d = eval_direct16 (add, 0, 0);
353 
            line[x][0] = ((d >> 0) & 0x1f) << 3;  /* Blue */
354 
            line[x][1] = ((d >> 5) & 0x3f) << 2;        /* Green */
355 
            line[x][2] = ((d >> 11) & 0x1f) << 3;       /* Red */
356 
          }
357 
        else
358 
          {
359 
            int add =
360 
              (fb->
361 
               addr & ~(FB_WRAP - 1)) | ((fb->addr + y * sx + x) & (FB_WRAP -
362 
                                                                    1));
363 
            unsigned short d = fb->pal[eval_direct8 (add, 0, 0)];
364 
            line[x][0] = ((d >> 0) & 0x1f) << 3;  /* Blue */
365 
            line[x][1] = ((d >> 5) & 0x3f) << 2;        /* Green */
366 
            line[x][2] = ((d >> 11) & 0x1f) << 3;       /* Red */
367 
          }
368 
      if (!fwrite (line, sizeof (line), 1, fo))
369 
        return 1;
370 
    }
371 859 markom 
 
372 1748 jeremybenn 
  if (config.sim.verbose)
373 
    PRINTF ("DONE\n");
374 859 markom 
  fclose (fo);
375 
  return 0;
376 
}
377 
 
378 1748 jeremybenn 
static void
379 
fb_job (void *dat)
380 805 markom 
{
381 1369 nogj 
  struct fb_state *fb = dat;
382 
 
383 1748 jeremybenn 
  if (fb->refresh)
384 
    {
385 
      /* dump the image? */
386 
      if (fb->ctrl & 1)
387 
        {
388 
          char temp[STR_SIZE];
389 
          sprintf (temp, "%s%04i.bmp", fb->filename, fb->pic);
390 
          if (fb->ctrl & 2)
391 
            fb_dump_image24 (fb, temp);
392 
          else
393 
            fb_dump_image8 (fb, temp);
394 
          fb->pic++;
395 
        }
396 
      SCHED_ADD (fb_job, dat, fb->refresh_rate / REFRESH_DIVIDER);
397 
      fb->in_refresh = 0;
398 
      fb->refresh = 0;
399 845 markom 
    }
400 1748 jeremybenn 
  else
401 
    {
402 
      fb->refresh_count++;
403 
      fb->refresh = 1;
404 
      SCHED_ADD (fb_job, dat, fb->refresh_rate / REFRESH_DIVIDER);
405 
    }
406 805 markom 
}
407 
 
408 1446 nogj 
/* Reset all FBs */
409 1748 jeremybenn 
static void
410 
fb_reset (void *dat)
411 645 markom 
{
412 1369 nogj 
  struct fb_state *fb = dat;
413 645 markom 
  int i;
414 647 markom 
 
415 1369 nogj 
  fb->pic = 0;
416 
  fb->addr = 0;
417 
  fb->ctrl = 0;
418 645 markom 
 
419 1369 nogj 
  for (i = 0; i < 256; i++)
420 
    fb->pal[i] = (i << 16) | (i << 8) | (i << 0);
421 647 markom 
 
422 1748 jeremybenn 
  SCHED_ADD (fb_job, dat, fb->refresh_rate);
423 1369 nogj 
  fb->refresh = 0;
424 645 markom 
}
425 1358 nogj 
 
426 
/*-----------------------------------------------------[ FB configuration ]---*/
427 1748 jeremybenn 
static void
428 
fb_enabled (union param_val val, void *dat)
429 1358 nogj 
{
430 1369 nogj 
  struct fb_state *fb = dat;
431 1748 jeremybenn 
  fb->enabled = val.int_val;
432 1358 nogj 
}
433 
 
434 1748 jeremybenn 
 
435 
static void
436 
fb_baseaddr (union param_val val, void *dat)
437 1358 nogj 
{
438 1369 nogj 
  struct fb_state *fb = dat;
439 1748 jeremybenn 
  fb->baseaddr = val.addr_val;
440 1358 nogj 
}
441 
 
442 1748 jeremybenn 
 
443 
static void
444 
fb_refresh_rate (union param_val val, void *dat)
445 1358 nogj 
{
446 1369 nogj 
  struct fb_state *fb = dat;
447 1748 jeremybenn 
  fb->refresh_rate = val.int_val;
448 1358 nogj 
}
449 
 
450 1748 jeremybenn 
 
451 
/*---------------------------------------------------------------------------*/
452 
/*!Set the frame buffer output file
453 
 
454 
   Free any previously allocated value.
455 
 
456 
   @param[in] val  The value to use
457 
   @param[in] dat  The config data structure                                 */
458 
/*---------------------------------------------------------------------------*/
459 
static void
460 
fb_filename (union param_val  val,
461 
             void            *dat)
462 1461 nogj 
{
463 
  struct fb_state *fb = dat;
464 
 
465 1748 jeremybenn 
  if (NULL != fb->filename)
466 
    {
467 
      free (fb->filename);
468 
      fb->filename = NULL;
469 
    }
470 
 
471 
  if (!(fb->filename = strdup (val.str_val)))
472 
    {
473 
      fprintf (stderr, "Peripheral FB: Run out of memory\n");
474 
      exit (-1);
475 
    }
476 
}       /* fb_filename() */
477 
 
478 
 
479 
/*---------------------------------------------------------------------------*/
480 
/*!Initialize a new frame buffer configuration
481 
 
482 
   ALL parameters are set explicitly to default values.                      */
483 
/*---------------------------------------------------------------------------*/
484 
static void *
485 
fb_sec_start ()
486 1369 nogj 
{
487 1748 jeremybenn 
  struct fb_state *new = malloc (sizeof (struct fb_state));
488 1369 nogj 
 
489 1748 jeremybenn 
  if (!new)
490 
    {
491 
      fprintf (stderr, "Peripheral FB: Run out of memory\n");
492 
      exit (-1);
493 
    }
494 1369 nogj 
 
495 1748 jeremybenn 
  new->enabled       = 1;
496 
  new->baseaddr      = 0;
497 
  new->refresh_rate  = 1000000000000ULL / 50ULL / config.sim.clkcycle_ps;
498 
  new->filename      = strdup ("fb_out");
499 
 
500 
  new->ctrl          = 0;
501 
  new->pic           = 0;
502 
  new->in_refresh    = 1;
503 1369 nogj 
  new->refresh_count = 0;
504 1748 jeremybenn 
  new->addr          = 0;
505 
  new->cam_addr      = 0;
506 
  new->camerax       = 0;
507 
  new->cameray       = 0;
508 
  new->camera_pos    = 0;
509 1369 nogj 
 
510 
  return new;
511 
 
512 1748 jeremybenn 
}       /* fb_sec_start() */
513 
 
514 
 
515 
static void
516 
fb_sec_end (void *dat)
517 1369 nogj 
{
518 
  struct fb_state *fb = dat;
519 1486 nogj 
  struct mem_ops ops;
520 1369 nogj 
 
521 1748 jeremybenn 
  if (!fb->enabled)
522 
    {
523 
      free (fb->filename);
524 
      free (fb);
525 
      return;
526 
    }
527 1461 nogj 
 
528 1748 jeremybenn 
  memset (&ops, 0, sizeof (struct mem_ops));
529 1369 nogj 
 
530 1486 nogj 
  ops.readfunc32 = fb_read32;
531 
  ops.writefunc32 = fb_write32;
532 
  ops.write_dat32 = dat;
533 
  ops.read_dat32 = dat;
534 
 
535 
  /* FIXME: Correct delay? */
536 
  ops.delayr = 2;
537 
  ops.delayw = 2;
538 
 
539 1748 jeremybenn 
  reg_mem_area (fb->baseaddr, FB_PAL + 256 * 4, 0, &ops);
540 1486 nogj 
 
541 1748 jeremybenn 
  reg_sim_reset (fb_reset, dat);
542 1369 nogj 
}
543 
 
544 1748 jeremybenn 
void
545 
reg_fb_sec ()
546 1358 nogj 
{
547 1748 jeremybenn 
  struct config_section *sec =
548 
    reg_config_sec ("fb", fb_sec_start, fb_sec_end);
549 1358 nogj 
 
550 1748 jeremybenn 
  reg_config_param (sec, "baseaddr", paramt_addr, fb_baseaddr);
551 
  reg_config_param (sec, "enabled", paramt_int, fb_enabled);
552 
  reg_config_param (sec, "refresh_rate", paramt_int, fb_refresh_rate);
553 
  reg_config_param (sec, "txfile", paramt_str, fb_filename);
554 
  reg_config_param (sec, "filename", paramt_str, fb_filename);
555 1358 nogj 
}

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