hw/omap_dss.c

   1 /*
   2  * OMAP2 Display Subsystem.
   3  *
   4  * Copyright (C) 2008 Nokia Corporation
   5  * Written by Andrzej Zaborowski <andrew@openedhand.com>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 or
  10  * (at your option) version 3 of the License.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20 #include "hw.h"
  21 #include "console.h"
  22 #include "omap.h"
  23
  24 struct omap_dss_s {
  25     qemu_irq irq;
  26     qemu_irq drq;
  27     DisplayState *state;
  28
  29     int autoidle;
  30     int control;
  31     int enable;
  32
  33     struct omap_dss_panel_s {
  34         int enable;
  35         int nx;
  36         int ny;
  37
  38         int x;
  39         int y;
  40     } dig, lcd;
  41
  42     struct {
  43         uint32_t idlemode;
  44         uint32_t irqst;
  45         uint32_t irqen;
  46         uint32_t control;
  47         uint32_t config;
  48         uint32_t capable;
  49         uint32_t timing[4];
  50         int line;
  51         uint32_t bg[2];
  52         uint32_t trans[2];
  53
  54         struct omap_dss_plane_s {
  55             int enable;
  56             int bpp;
  57             int posx;
  58             int posy;
  59             int nx;
  60             int ny;
  61
  62             target_phys_addr_t addr[3];
  63
  64             uint32_t attr;
  65             uint32_t tresh;
  66             int rowinc;
  67             int colinc;
  68             int wininc;
  69         } l[3];
  70
  71         int invalidate;
  72         uint16_t palette[256];
  73     } dispc;
  74
  75     struct {
  76         int idlemode;
  77         uint32_t control;
  78         int enable;
  79         int pixels;
  80         int busy;
  81         int skiplines;
  82         uint16_t rxbuf;
  83         uint32_t config[2];
  84         uint32_t time[4];
  85         uint32_t data[6];
  86         uint16_t vsync;
  87         uint16_t hsync;
  88         struct rfbi_chip_s *chip[2];
  89     } rfbi;
  90 };
  91
  92 static void omap_dispc_interrupt_update(struct omap_dss_s *s)
  93 {
  94     qemu_set_irq(s->irq, s->dispc.irqst & s->dispc.irqen);
  95 }
  96
  97 static void omap_rfbi_reset(struct omap_dss_s *s)
  98 {
  99     s->rfbi.idlemode = 0;
 100     s->rfbi.control = 2;
 101     s->rfbi.enable = 0;
 102     s->rfbi.pixels = 0;
 103     s->rfbi.skiplines = 0;
 104     s->rfbi.busy = 0;
 105     s->rfbi.config[0] = 0x00310000;
 106     s->rfbi.config[1] = 0x00310000;
 107     s->rfbi.time[0] = 0;
 108     s->rfbi.time[1] = 0;
 109     s->rfbi.time[2] = 0;
 110     s->rfbi.time[3] = 0;
 111     s->rfbi.data[0] = 0;
 112     s->rfbi.data[1] = 0;
 113     s->rfbi.data[2] = 0;
 114     s->rfbi.data[3] = 0;
 115     s->rfbi.data[4] = 0;
 116     s->rfbi.data[5] = 0;
 117     s->rfbi.vsync = 0;
 118     s->rfbi.hsync = 0;
 119 }
 120
 121 void omap_dss_reset(struct omap_dss_s *s)
 122 {
 123     s->autoidle = 0;
 124     s->control = 0;
 125     s->enable = 0;
 126
 127     s->dig.enable = 0;
 128     s->dig.nx = 1;
 129     s->dig.ny = 1;
 130
 131     s->lcd.enable = 0;
 132     s->lcd.nx = 1;
 133     s->lcd.ny = 1;
 134
 135     s->dispc.idlemode = 0;
 136     s->dispc.irqst = 0;
 137     s->dispc.irqen = 0;
 138     s->dispc.control = 0;
 139     s->dispc.config = 0;
 140     s->dispc.capable = 0x161;
 141     s->dispc.timing[0] = 0;
 142     s->dispc.timing[1] = 0;
 143     s->dispc.timing[2] = 0;
 144     s->dispc.timing[3] = 0;
 145     s->dispc.line = 0;
 146     s->dispc.bg[0] = 0;
 147     s->dispc.bg[1] = 0;
 148     s->dispc.trans[0] = 0;
 149     s->dispc.trans[1] = 0;
 150
 151     s->dispc.l[0].enable = 0;
 152     s->dispc.l[0].bpp = 0;
 153     s->dispc.l[0].addr[0] = 0;
 154     s->dispc.l[0].addr[1] = 0;
 155     s->dispc.l[0].addr[2] = 0;
 156     s->dispc.l[0].posx = 0;
 157     s->dispc.l[0].posy = 0;
 158     s->dispc.l[0].nx = 1;
 159     s->dispc.l[0].ny = 1;
 160     s->dispc.l[0].attr = 0;
 161     s->dispc.l[0].tresh = 0;
 162     s->dispc.l[0].rowinc = 1;
 163     s->dispc.l[0].colinc = 1;
 164     s->dispc.l[0].wininc = 0;
 165
 166     omap_rfbi_reset(s);
 167     omap_dispc_interrupt_update(s);
 168 }
 169
 170 static uint32_t omap_diss_read(void *opaque, target_phys_addr_t addr)
 171 {
 172     struct omap_dss_s *s = (struct omap_dss_s *) opaque;
 173
 174     switch (addr) {
 175     case 0x00:  /* DSS_REVISIONNUMBER */
 176         return 0x20;
 177
 178     case 0x10:  /* DSS_SYSCONFIG */
 179         return s->autoidle;
 180
 181     case 0x14:  /* DSS_SYSSTATUS */
 182         return 1;                                               /* RESETDONE */
 183
 184     case 0x40:  /* DSS_CONTROL */
 185         return s->control;
 186
 187     case 0x50:  /* DSS_PSA_LCD_REG_1 */
 188     case 0x54:  /* DSS_PSA_LCD_REG_2 */
 189     case 0x58:  /* DSS_PSA_VIDEO_REG */
 190         /* TODO: fake some values when appropriate s->control bits are set */
 191         return 0;
 192
 193     case 0x5c:  /* DSS_STATUS */
 194         return 1 + (s->control & 1);
 195
 196     default:
 197         break;
 198     }
 199     OMAP_BAD_REG(addr);
 200     return 0;
 201 }
 202
 203 static void omap_diss_write(void *opaque, target_phys_addr_t addr,
 204                 uint32_t value)
 205 {
 206     struct omap_dss_s *s = (struct omap_dss_s *) opaque;
 207
 208     switch (addr) {
 209     case 0x00:  /* DSS_REVISIONNUMBER */
 210     case 0x14:  /* DSS_SYSSTATUS */
 211     case 0x50:  /* DSS_PSA_LCD_REG_1 */
 212     case 0x54:  /* DSS_PSA_LCD_REG_2 */
 213     case 0x58:  /* DSS_PSA_VIDEO_REG */
 214     case 0x5c:  /* DSS_STATUS */
 215         OMAP_RO_REG(addr);
 216         break;
 217
 218     case 0x10:  /* DSS_SYSCONFIG */
 219         if (value & 2)                                          /* SOFTRESET */
 220             omap_dss_reset(s);
 221         s->autoidle = value & 1;
 222         break;
 223
 224     case 0x40:  /* DSS_CONTROL */
 225         s->control = value & 0x3dd;
 226         break;
 227
 228     default:
 229         OMAP_BAD_REG(addr);
 230     }
 231 }
 232
 233 static CPUReadMemoryFunc * const omap_diss1_readfn[] = {
 234     omap_badwidth_read32,
 235     omap_badwidth_read32,
 236     omap_diss_read,
 237 };
 238
 239 static CPUWriteMemoryFunc * const omap_diss1_writefn[] = {
 240     omap_badwidth_write32,
 241     omap_badwidth_write32,
 242     omap_diss_write,
 243 };
 244
 245 static uint32_t omap_disc_read(void *opaque, target_phys_addr_t addr)
 246 {
 247     struct omap_dss_s *s = (struct omap_dss_s *) opaque;
 248
 249     switch (addr) {
 250     case 0x000: /* DISPC_REVISION */
 251         return 0x20;
 252
 253     case 0x010: /* DISPC_SYSCONFIG */
 254         return s->dispc.idlemode;
 255
 256     case 0x014: /* DISPC_SYSSTATUS */
 257         return 1;                                               /* RESETDONE */
 258
 259     case 0x018: /* DISPC_IRQSTATUS */
 260         return s->dispc.irqst;
 261
 262     case 0x01c: /* DISPC_IRQENABLE */
 263         return s->dispc.irqen;
 264
 265     case 0x040: /* DISPC_CONTROL */
 266         return s->dispc.control;
 267
 268     case 0x044: /* DISPC_CONFIG */
 269         return s->dispc.config;
 270
 271     case 0x048: /* DISPC_CAPABLE */
 272         return s->dispc.capable;
 273
 274     case 0x04c: /* DISPC_DEFAULT_COLOR0 */
 275         return s->dispc.bg[0];
 276     case 0x050: /* DISPC_DEFAULT_COLOR1 */
 277         return s->dispc.bg[1];
 278     case 0x054: /* DISPC_TRANS_COLOR0 */
 279         return s->dispc.trans[0];
 280     case 0x058: /* DISPC_TRANS_COLOR1 */
 281         return s->dispc.trans[1];
 282
 283     case 0x05c: /* DISPC_LINE_STATUS */
 284         return 0x7ff;
 285     case 0x060: /* DISPC_LINE_NUMBER */
 286         return s->dispc.line;
 287
 288     case 0x064: /* DISPC_TIMING_H */
 289         return s->dispc.timing[0];
 290     case 0x068: /* DISPC_TIMING_V */
 291         return s->dispc.timing[1];
 292     case 0x06c: /* DISPC_POL_FREQ */
 293         return s->dispc.timing[2];
 294     case 0x070: /* DISPC_DIVISOR */
 295         return s->dispc.timing[3];
 296
 297     case 0x078: /* DISPC_SIZE_DIG */
 298         return ((s->dig.ny - 1) << 16) | (s->dig.nx - 1);
 299     case 0x07c: /* DISPC_SIZE_LCD */
 300         return ((s->lcd.ny - 1) << 16) | (s->lcd.nx - 1);
 301
 302     case 0x080: /* DISPC_GFX_BA0 */
 303         return s->dispc.l[0].addr[0];
 304     case 0x084: /* DISPC_GFX_BA1 */
 305         return s->dispc.l[0].addr[1];
 306     case 0x088: /* DISPC_GFX_POSITION */
 307         return (s->dispc.l[0].posy << 16) | s->dispc.l[0].posx;
 308     case 0x08c: /* DISPC_GFX_SIZE */
 309         return ((s->dispc.l[0].ny - 1) << 16) | (s->dispc.l[0].nx - 1);
 310     case 0x0a0: /* DISPC_GFX_ATTRIBUTES */
 311         return s->dispc.l[0].attr;
 312     case 0x0a4: /* DISPC_GFX_FIFO_TRESHOLD */
 313         return s->dispc.l[0].tresh;
 314     case 0x0a8: /* DISPC_GFX_FIFO_SIZE_STATUS */
 315         return 256;
 316     case 0x0ac: /* DISPC_GFX_ROW_INC */
 317         return s->dispc.l[0].rowinc;
 318     case 0x0b0: /* DISPC_GFX_PIXEL_INC */
 319         return s->dispc.l[0].colinc;
 320     case 0x0b4: /* DISPC_GFX_WINDOW_SKIP */
 321         return s->dispc.l[0].wininc;
 322     case 0x0b8: /* DISPC_GFX_TABLE_BA */
 323         return s->dispc.l[0].addr[2];
 324
 325     case 0x0bc: /* DISPC_VID1_BA0 */
 326     case 0x0c0: /* DISPC_VID1_BA1 */
 327     case 0x0c4: /* DISPC_VID1_POSITION */
 328     case 0x0c8: /* DISPC_VID1_SIZE */
 329     case 0x0cc: /* DISPC_VID1_ATTRIBUTES */
 330     case 0x0d0: /* DISPC_VID1_FIFO_TRESHOLD */
 331     case 0x0d4: /* DISPC_VID1_FIFO_SIZE_STATUS */
 332     case 0x0d8: /* DISPC_VID1_ROW_INC */
 333     case 0x0dc: /* DISPC_VID1_PIXEL_INC */
 334     case 0x0e0: /* DISPC_VID1_FIR */
 335     case 0x0e4: /* DISPC_VID1_PICTURE_SIZE */
 336     case 0x0e8: /* DISPC_VID1_ACCU0 */
 337     case 0x0ec: /* DISPC_VID1_ACCU1 */
 338     case 0x0f0 ... 0x140:       /* DISPC_VID1_FIR_COEF, DISPC_VID1_CONV_COEF */
 339     case 0x14c: /* DISPC_VID2_BA0 */
 340     case 0x150: /* DISPC_VID2_BA1 */
 341     case 0x154: /* DISPC_VID2_POSITION */
 342     case 0x158: /* DISPC_VID2_SIZE */
 343     case 0x15c: /* DISPC_VID2_ATTRIBUTES */
 344     case 0x160: /* DISPC_VID2_FIFO_TRESHOLD */
 345     case 0x164: /* DISPC_VID2_FIFO_SIZE_STATUS */
 346     case 0x168: /* DISPC_VID2_ROW_INC */
 347     case 0x16c: /* DISPC_VID2_PIXEL_INC */
 348     case 0x170: /* DISPC_VID2_FIR */
 349     case 0x174: /* DISPC_VID2_PICTURE_SIZE */
 350     case 0x178: /* DISPC_VID2_ACCU0 */
 351     case 0x17c: /* DISPC_VID2_ACCU1 */
 352     case 0x180 ... 0x1d0:       /* DISPC_VID2_FIR_COEF, DISPC_VID2_CONV_COEF */
 353     case 0x1d4: /* DISPC_DATA_CYCLE1 */
 354     case 0x1d8: /* DISPC_DATA_CYCLE2 */
 355     case 0x1dc: /* DISPC_DATA_CYCLE3 */
 356         return 0;
 357
 358     default:
 359         break;
 360     }
 361     OMAP_BAD_REG(addr);
 362     return 0;
 363 }
 364
 365 static void omap_disc_write(void *opaque, target_phys_addr_t addr,
 366                 uint32_t value)
 367 {
 368     struct omap_dss_s *s = (struct omap_dss_s *) opaque;
 369
 370     switch (addr) {
 371     case 0x010: /* DISPC_SYSCONFIG */
 372         if (value & 2)                                          /* SOFTRESET */
 373             omap_dss_reset(s);
 374         s->dispc.idlemode = value & 0x301b;
 375         break;
 376
 377     case 0x018: /* DISPC_IRQSTATUS */
 378         s->dispc.irqst &= ~value;
 379         omap_dispc_interrupt_update(s);
 380         break;
 381
 382     case 0x01c: /* DISPC_IRQENABLE */
 383         s->dispc.irqen = value & 0xffff;
 384         omap_dispc_interrupt_update(s);
 385         break;
 386
 387     case 0x040: /* DISPC_CONTROL */
 388         s->dispc.control = value & 0x07ff9fff;
 389         s->dig.enable = (value >> 1) & 1;
 390         s->lcd.enable = (value >> 0) & 1;
 391         if (value & (1 << 12))                  /* OVERLAY_OPTIMIZATION */
 392             if (~((s->dispc.l[1].attr | s->dispc.l[2].attr) & 1))
 393                  fprintf(stderr, "%s: Overlay Optimization when no overlay "
 394                                  "region effectively exists leads to "
 395                                  "unpredictable behaviour!\n", __FUNCTION__);
 396         if (value & (1 << 6)) {                         /* GODIGITAL */
 397             /* XXX: Shadowed fields are:
 398              * s->dispc.config
 399              * s->dispc.capable
 400              * s->dispc.bg[0]
 401              * s->dispc.bg[1]
 402              * s->dispc.trans[0]
 403              * s->dispc.trans[1]
 404              * s->dispc.line
 405              * s->dispc.timing[0]
 406              * s->dispc.timing[1]
 407              * s->dispc.timing[2]
 408              * s->dispc.timing[3]
 409              * s->lcd.nx
 410              * s->lcd.ny
 411              * s->dig.nx
 412              * s->dig.ny
 413              * s->dispc.l[0].addr[0]
 414              * s->dispc.l[0].addr[1]
 415              * s->dispc.l[0].addr[2]
 416              * s->dispc.l[0].posx
 417              * s->dispc.l[0].posy
 418              * s->dispc.l[0].nx
 419              * s->dispc.l[0].ny
 420              * s->dispc.l[0].tresh
 421              * s->dispc.l[0].rowinc
 422              * s->dispc.l[0].colinc
 423              * s->dispc.l[0].wininc
 424              * All they need to be loaded here from their shadow registers.
 425              */
 426         }
 427         if (value & (1 << 5)) {                         /* GOLCD */
 428              /* XXX: Likewise for LCD here.  */
 429         }
 430         s->dispc.invalidate = 1;
 431         break;
 432
 433     case 0x044: /* DISPC_CONFIG */
 434         s->dispc.config = value & 0x3fff;
 435         /* XXX:
 436          * bits 2:1 (LOADMODE) reset to 0 after set to 1 and palette loaded
 437          * bits 2:1 (LOADMODE) reset to 2 after set to 3 and palette loaded
 438          */
 439         s->dispc.invalidate = 1;
 440         break;
 441
 442     case 0x048: /* DISPC_CAPABLE */
 443         s->dispc.capable = value & 0x3ff;
 444         break;
 445
 446     case 0x04c: /* DISPC_DEFAULT_COLOR0 */
 447         s->dispc.bg[0] = value & 0xffffff;
 448         s->dispc.invalidate = 1;
 449         break;
 450     case 0x050: /* DISPC_DEFAULT_COLOR1 */
 451         s->dispc.bg[1] = value & 0xffffff;
 452         s->dispc.invalidate = 1;
 453         break;
 454     case 0x054: /* DISPC_TRANS_COLOR0 */
 455         s->dispc.trans[0] = value & 0xffffff;
 456         s->dispc.invalidate = 1;
 457         break;
 458     case 0x058: /* DISPC_TRANS_COLOR1 */
 459         s->dispc.trans[1] = value & 0xffffff;
 460         s->dispc.invalidate = 1;
 461         break;
 462
 463     case 0x060: /* DISPC_LINE_NUMBER */
 464         s->dispc.line = value & 0x7ff;
 465         break;
 466
 467     case 0x064: /* DISPC_TIMING_H */
 468         s->dispc.timing[0] = value & 0x0ff0ff3f;
 469         break;
 470     case 0x068: /* DISPC_TIMING_V */
 471         s->dispc.timing[1] = value & 0x0ff0ff3f;
 472         break;
 473     case 0x06c: /* DISPC_POL_FREQ */
 474         s->dispc.timing[2] = value & 0x0003ffff;
 475         break;
 476     case 0x070: /* DISPC_DIVISOR */
 477         s->dispc.timing[3] = value & 0x00ff00ff;
 478         break;
 479
 480     case 0x078: /* DISPC_SIZE_DIG */
 481         s->dig.nx = ((value >>  0) & 0x7ff) + 1;                /* PPL */
 482         s->dig.ny = ((value >> 16) & 0x7ff) + 1;                /* LPP */
 483         s->dispc.invalidate = 1;
 484         break;
 485     case 0x07c: /* DISPC_SIZE_LCD */
 486         s->lcd.nx = ((value >>  0) & 0x7ff) + 1;                /* PPL */
 487         s->lcd.ny = ((value >> 16) & 0x7ff) + 1;                /* LPP */
 488         s->dispc.invalidate = 1;
 489         break;
 490     case 0x080: /* DISPC_GFX_BA0 */
 491         s->dispc.l[0].addr[0] = (target_phys_addr_t) value;
 492         s->dispc.invalidate = 1;
 493         break;
 494     case 0x084: /* DISPC_GFX_BA1 */
 495         s->dispc.l[0].addr[1] = (target_phys_addr_t) value;
 496         s->dispc.invalidate = 1;
 497         break;
 498     case 0x088: /* DISPC_GFX_POSITION */
 499         s->dispc.l[0].posx = ((value >>  0) & 0x7ff);           /* GFXPOSX */
 500         s->dispc.l[0].posy = ((value >> 16) & 0x7ff);           /* GFXPOSY */
 501         s->dispc.invalidate = 1;
 502         break;
 503     case 0x08c: /* DISPC_GFX_SIZE */
 504         s->dispc.l[0].nx = ((value >>  0) & 0x7ff) + 1;         /* GFXSIZEX */
 505         s->dispc.l[0].ny = ((value >> 16) & 0x7ff) + 1;         /* GFXSIZEY */
 506         s->dispc.invalidate = 1;
 507         break;
 508     case 0x0a0: /* DISPC_GFX_ATTRIBUTES */
 509         s->dispc.l[0].attr = value & 0x7ff;
 510         if (value & (3 << 9))
 511             fprintf(stderr, "%s: Big-endian pixel format not supported\n",
 512                             __FUNCTION__);
 513         s->dispc.l[0].enable = value & 1;
 514         s->dispc.l[0].bpp = (value >> 1) & 0xf;
 515         s->dispc.invalidate = 1;
 516         break;
 517     case 0x0a4: /* DISPC_GFX_FIFO_TRESHOLD */
 518         s->dispc.l[0].tresh = value & 0x01ff01ff;
 519         break;
 520     case 0x0ac: /* DISPC_GFX_ROW_INC */
 521         s->dispc.l[0].rowinc = value;
 522         s->dispc.invalidate = 1;
 523         break;
 524     case 0x0b0: /* DISPC_GFX_PIXEL_INC */
 525         s->dispc.l[0].colinc = value;
 526         s->dispc.invalidate = 1;
 527         break;
 528     case 0x0b4: /* DISPC_GFX_WINDOW_SKIP */
 529         s->dispc.l[0].wininc = value;
 530         break;
 531     case 0x0b8: /* DISPC_GFX_TABLE_BA */
 532         s->dispc.l[0].addr[2] = (target_phys_addr_t) value;
 533         s->dispc.invalidate = 1;
 534         break;
 535
 536     case 0x0bc: /* DISPC_VID1_BA0 */
 537     case 0x0c0: /* DISPC_VID1_BA1 */
 538     case 0x0c4: /* DISPC_VID1_POSITION */
 539     case 0x0c8: /* DISPC_VID1_SIZE */
 540     case 0x0cc: /* DISPC_VID1_ATTRIBUTES */
 541     case 0x0d0: /* DISPC_VID1_FIFO_TRESHOLD */
 542     case 0x0d8: /* DISPC_VID1_ROW_INC */
 543     case 0x0dc: /* DISPC_VID1_PIXEL_INC */
 544     case 0x0e0: /* DISPC_VID1_FIR */
 545     case 0x0e4: /* DISPC_VID1_PICTURE_SIZE */
 546     case 0x0e8: /* DISPC_VID1_ACCU0 */
 547     case 0x0ec: /* DISPC_VID1_ACCU1 */
 548     case 0x0f0 ... 0x140:       /* DISPC_VID1_FIR_COEF, DISPC_VID1_CONV_COEF */
 549     case 0x14c: /* DISPC_VID2_BA0 */
 550     case 0x150: /* DISPC_VID2_BA1 */
 551     case 0x154: /* DISPC_VID2_POSITION */
 552     case 0x158: /* DISPC_VID2_SIZE */
 553     case 0x15c: /* DISPC_VID2_ATTRIBUTES */
 554     case 0x160: /* DISPC_VID2_FIFO_TRESHOLD */
 555     case 0x168: /* DISPC_VID2_ROW_INC */
 556     case 0x16c: /* DISPC_VID2_PIXEL_INC */
 557     case 0x170: /* DISPC_VID2_FIR */
 558     case 0x174: /* DISPC_VID2_PICTURE_SIZE */
 559     case 0x178: /* DISPC_VID2_ACCU0 */
 560     case 0x17c: /* DISPC_VID2_ACCU1 */
 561     case 0x180 ... 0x1d0:       /* DISPC_VID2_FIR_COEF, DISPC_VID2_CONV_COEF */
 562     case 0x1d4: /* DISPC_DATA_CYCLE1 */
 563     case 0x1d8: /* DISPC_DATA_CYCLE2 */
 564     case 0x1dc: /* DISPC_DATA_CYCLE3 */
 565         break;
 566
 567     default:
 568         OMAP_BAD_REG(addr);
 569     }
 570 }
 571
 572 static CPUReadMemoryFunc * const omap_disc1_readfn[] = {
 573     omap_badwidth_read32,
 574     omap_badwidth_read32,
 575     omap_disc_read,
 576 };
 577
 578 static CPUWriteMemoryFunc * const omap_disc1_writefn[] = {
 579     omap_badwidth_write32,
 580     omap_badwidth_write32,
 581     omap_disc_write,
 582 };
 583
 584 static void omap_rfbi_transfer_stop(struct omap_dss_s *s)
 585 {
 586     if (!s->rfbi.busy)
 587         return;
 588
 589     /* TODO: in non-Bypass mode we probably need to just deassert the DRQ.  */
 590
 591     s->rfbi.busy = 0;
 592 }
 593
 594 static void omap_rfbi_transfer_start(struct omap_dss_s *s)
 595 {
 596     void *data;
 597     target_phys_addr_t len;
 598     target_phys_addr_t data_addr;
 599     int pitch;
 600     static void *bounce_buffer;
 601     static target_phys_addr_t bounce_len;
 602
 603     if (!s->rfbi.enable || s->rfbi.busy)
 604         return;
 605
 606     if (s->rfbi.control & (1 << 1)) {                           /* BYPASS */
 607         /* TODO: in non-Bypass mode we probably need to just assert the
 608          * DRQ and wait for DMA to write the pixels.  */
 609         fprintf(stderr, "%s: Bypass mode unimplemented\n", __FUNCTION__);
 610         return;
 611     }
 612
 613     if (!(s->dispc.control & (1 << 11)))                        /* RFBIMODE */
 614         return;
 615     /* TODO: check that LCD output is enabled in DISPC.  */
 616
 617     s->rfbi.busy = 1;
 618
 619     len = s->rfbi.pixels * 2;
 620
 621     data_addr = s->dispc.l[0].addr[0];
 622     data = cpu_physical_memory_map(data_addr, &len, 0);
 623     if (data && len != s->rfbi.pixels * 2) {
 624         cpu_physical_memory_unmap(data, len, 0, 0);
 625         data = NULL;
 626         len = s->rfbi.pixels * 2;
 627     }
 628     if (!data) {
 629         if (len > bounce_len) {
 630             bounce_buffer = qemu_realloc(bounce_buffer, len);
 631         }
 632         data = bounce_buffer;
 633         cpu_physical_memory_read(data_addr, data, len);
 634     }
 635
 636     /* TODO bpp */
 637     s->rfbi.pixels = 0;
 638
 639     /* TODO: negative values */
 640     pitch = s->dispc.l[0].nx + (s->dispc.l[0].rowinc - 1) / 2;
 641
 642     if ((s->rfbi.control & (1 << 2)) && s->rfbi.chip[0])
 643         s->rfbi.chip[0]->block(s->rfbi.chip[0]->opaque, 1, data, len, pitch);
 644     if ((s->rfbi.control & (1 << 3)) && s->rfbi.chip[1])
 645         s->rfbi.chip[1]->block(s->rfbi.chip[1]->opaque, 1, data, len, pitch);
 646
 647     if (data != bounce_buffer) {
 648         cpu_physical_memory_unmap(data, len, 0, len);
 649     }
 650
 651     omap_rfbi_transfer_stop(s);
 652
 653     /* TODO */
 654     s->dispc.irqst |= 1;                                        /* FRAMEDONE */
 655     omap_dispc_interrupt_update(s);
 656 }
 657
 658 static uint32_t omap_rfbi_read(void *opaque, target_phys_addr_t addr)
 659 {
 660     struct omap_dss_s *s = (struct omap_dss_s *) opaque;
 661
 662     switch (addr) {
 663     case 0x00:  /* RFBI_REVISION */
 664         return 0x10;
 665
 666     case 0x10:  /* RFBI_SYSCONFIG */
 667         return s->rfbi.idlemode;
 668
 669     case 0x14:  /* RFBI_SYSSTATUS */
 670         return 1 | (s->rfbi.busy << 8);                         /* RESETDONE */
 671
 672     case 0x40:  /* RFBI_CONTROL */
 673         return s->rfbi.control;
 674
 675     case 0x44:  /* RFBI_PIXELCNT */
 676         return s->rfbi.pixels;
 677
 678     case 0x48:  /* RFBI_LINE_NUMBER */
 679         return s->rfbi.skiplines;
 680
 681     case 0x58:  /* RFBI_READ */
 682     case 0x5c:  /* RFBI_STATUS */
 683         return s->rfbi.rxbuf;
 684
 685     case 0x60:  /* RFBI_CONFIG0 */
 686         return s->rfbi.config[0];
 687     case 0x64:  /* RFBI_ONOFF_TIME0 */
 688         return s->rfbi.time[0];
 689     case 0x68:  /* RFBI_CYCLE_TIME0 */
 690         return s->rfbi.time[1];
 691     case 0x6c:  /* RFBI_DATA_CYCLE1_0 */
 692         return s->rfbi.data[0];
 693     case 0x70:  /* RFBI_DATA_CYCLE2_0 */
 694         return s->rfbi.data[1];
 695     case 0x74:  /* RFBI_DATA_CYCLE3_0 */
 696         return s->rfbi.data[2];
 697
 698     case 0x78:  /* RFBI_CONFIG1 */
 699         return s->rfbi.config[1];
 700     case 0x7c:  /* RFBI_ONOFF_TIME1 */
 701         return s->rfbi.time[2];
 702     case 0x80:  /* RFBI_CYCLE_TIME1 */
 703         return s->rfbi.time[3];
 704     case 0x84:  /* RFBI_DATA_CYCLE1_1 */
 705         return s->rfbi.data[3];
 706     case 0x88:  /* RFBI_DATA_CYCLE2_1 */
 707         return s->rfbi.data[4];
 708     case 0x8c:  /* RFBI_DATA_CYCLE3_1 */
 709         return s->rfbi.data[5];
 710
 711     case 0x90:  /* RFBI_VSYNC_WIDTH */
 712         return s->rfbi.vsync;
 713     case 0x94:  /* RFBI_HSYNC_WIDTH */
 714         return s->rfbi.hsync;
 715     }
 716     OMAP_BAD_REG(addr);
 717     return 0;
 718 }
 719
 720 static void omap_rfbi_write(void *opaque, target_phys_addr_t addr,
 721                 uint32_t value)
 722 {
 723     struct omap_dss_s *s = (struct omap_dss_s *) opaque;
 724
 725     switch (addr) {
 726     case 0x10:  /* RFBI_SYSCONFIG */
 727         if (value & 2)                                          /* SOFTRESET */
 728             omap_rfbi_reset(s);
 729         s->rfbi.idlemode = value & 0x19;
 730         break;
 731
 732     case 0x40:  /* RFBI_CONTROL */
 733         s->rfbi.control = value & 0xf;
 734         s->rfbi.enable = value & 1;
 735         if (value & (1 << 4) &&                                 /* ITE */
 736                         !(s->rfbi.config[0] & s->rfbi.config[1] & 0xc))
 737             omap_rfbi_transfer_start(s);
 738         break;
 739
 740     case 0x44:  /* RFBI_PIXELCNT */
 741         s->rfbi.pixels = value;
 742         break;
 743
 744     case 0x48:  /* RFBI_LINE_NUMBER */
 745         s->rfbi.skiplines = value & 0x7ff;
 746         break;
 747
 748     case 0x4c:  /* RFBI_CMD */
 749         if ((s->rfbi.control & (1 << 2)) && s->rfbi.chip[0])
 750             s->rfbi.chip[0]->write(s->rfbi.chip[0]->opaque, 0, value & 0xffff);
 751         if ((s->rfbi.control & (1 << 3)) && s->rfbi.chip[1])
 752             s->rfbi.chip[1]->write(s->rfbi.chip[1]->opaque, 0, value & 0xffff);
 753         break;
 754     case 0x50:  /* RFBI_PARAM */
 755         if ((s->rfbi.control & (1 << 2)) && s->rfbi.chip[0])
 756             s->rfbi.chip[0]->write(s->rfbi.chip[0]->opaque, 1, value & 0xffff);
 757         if ((s->rfbi.control & (1 << 3)) && s->rfbi.chip[1])
 758             s->rfbi.chip[1]->write(s->rfbi.chip[1]->opaque, 1, value & 0xffff);
 759         break;
 760     case 0x54:  /* RFBI_DATA */
 761         /* TODO: take into account the format set up in s->rfbi.config[?] and
 762          * s->rfbi.data[?], but special-case the most usual scenario so that
 763          * speed doesn't suffer.  */
 764         if ((s->rfbi.control & (1 << 2)) && s->rfbi.chip[0]) {
 765             s->rfbi.chip[0]->write(s->rfbi.chip[0]->opaque, 1, value & 0xffff);
 766             s->rfbi.chip[0]->write(s->rfbi.chip[0]->opaque, 1, value >> 16);
 767         }
 768         if ((s->rfbi.control & (1 << 3)) && s->rfbi.chip[1]) {
 769             s->rfbi.chip[1]->write(s->rfbi.chip[1]->opaque, 1, value & 0xffff);
 770             s->rfbi.chip[1]->write(s->rfbi.chip[1]->opaque, 1, value >> 16);
 771         }
 772         if (!-- s->rfbi.pixels)
 773             omap_rfbi_transfer_stop(s);
 774         break;
 775     case 0x58:  /* RFBI_READ */
 776         if ((s->rfbi.control & (1 << 2)) && s->rfbi.chip[0])
 777             s->rfbi.rxbuf = s->rfbi.chip[0]->read(s->rfbi.chip[0]->opaque, 1);
 778         else if ((s->rfbi.control & (1 << 3)) && s->rfbi.chip[1])
 779             s->rfbi.rxbuf = s->rfbi.chip[0]->read(s->rfbi.chip[0]->opaque, 1);
 780         if (!-- s->rfbi.pixels)
 781             omap_rfbi_transfer_stop(s);
 782         break;
 783
 784     case 0x5c:  /* RFBI_STATUS */
 785         if ((s->rfbi.control & (1 << 2)) && s->rfbi.chip[0])
 786             s->rfbi.rxbuf = s->rfbi.chip[0]->read(s->rfbi.chip[0]->opaque, 0);
 787         else if ((s->rfbi.control & (1 << 3)) && s->rfbi.chip[1])
 788             s->rfbi.rxbuf = s->rfbi.chip[0]->read(s->rfbi.chip[0]->opaque, 0);
 789         if (!-- s->rfbi.pixels)
 790             omap_rfbi_transfer_stop(s);
 791         break;
 792
 793     case 0x60:  /* RFBI_CONFIG0 */
 794         s->rfbi.config[0] = value & 0x003f1fff;
 795         break;
 796
 797     case 0x64:  /* RFBI_ONOFF_TIME0 */
 798         s->rfbi.time[0] = value & 0x3fffffff;
 799         break;
 800     case 0x68:  /* RFBI_CYCLE_TIME0 */
 801         s->rfbi.time[1] = value & 0x0fffffff;
 802         break;
 803     case 0x6c:  /* RFBI_DATA_CYCLE1_0 */
 804         s->rfbi.data[0] = value & 0x0f1f0f1f;
 805         break;
 806     case 0x70:  /* RFBI_DATA_CYCLE2_0 */
 807         s->rfbi.data[1] = value & 0x0f1f0f1f;
 808         break;
 809     case 0x74:  /* RFBI_DATA_CYCLE3_0 */
 810         s->rfbi.data[2] = value & 0x0f1f0f1f;
 811         break;
 812     case 0x78:  /* RFBI_CONFIG1 */
 813         s->rfbi.config[1] = value & 0x003f1fff;
 814         break;
 815
 816     case 0x7c:  /* RFBI_ONOFF_TIME1 */
 817         s->rfbi.time[2] = value & 0x3fffffff;
 818         break;
 819     case 0x80:  /* RFBI_CYCLE_TIME1 */
 820         s->rfbi.time[3] = value & 0x0fffffff;
 821         break;
 822     case 0x84:  /* RFBI_DATA_CYCLE1_1 */
 823         s->rfbi.data[3] = value & 0x0f1f0f1f;
 824         break;
 825     case 0x88:  /* RFBI_DATA_CYCLE2_1 */
 826         s->rfbi.data[4] = value & 0x0f1f0f1f;
 827         break;
 828     case 0x8c:  /* RFBI_DATA_CYCLE3_1 */
 829         s->rfbi.data[5] = value & 0x0f1f0f1f;
 830         break;
 831
 832     case 0x90:  /* RFBI_VSYNC_WIDTH */
 833         s->rfbi.vsync = value & 0xffff;
 834         break;
 835     case 0x94:  /* RFBI_HSYNC_WIDTH */
 836         s->rfbi.hsync = value & 0xffff;
 837         break;
 838
 839     default:
 840         OMAP_BAD_REG(addr);
 841     }
 842 }
 843
 844 static CPUReadMemoryFunc * const omap_rfbi1_readfn[] = {
 845     omap_badwidth_read32,
 846     omap_badwidth_read32,
 847     omap_rfbi_read,
 848 };
 849
 850 static CPUWriteMemoryFunc * const omap_rfbi1_writefn[] = {
 851     omap_badwidth_write32,
 852     omap_badwidth_write32,
 853     omap_rfbi_write,
 854 };
 855
 856 static uint32_t omap_venc_read(void *opaque, target_phys_addr_t addr)
 857 {
 858     switch (addr) {
 859     case 0x00:  /* REV_ID */
 860     case 0x04:  /* STATUS */
 861     case 0x08:  /* F_CONTROL */
 862     case 0x10:  /* VIDOUT_CTRL */
 863     case 0x14:  /* SYNC_CTRL */
 864     case 0x1c:  /* LLEN */
 865     case 0x20:  /* FLENS */
 866     case 0x24:  /* HFLTR_CTRL */
 867     case 0x28:  /* CC_CARR_WSS_CARR */
 868     case 0x2c:  /* C_PHASE */
 869     case 0x30:  /* GAIN_U */
 870     case 0x34:  /* GAIN_V */
 871     case 0x38:  /* GAIN_Y */
 872     case 0x3c:  /* BLACK_LEVEL */
 873     case 0x40:  /* BLANK_LEVEL */
 874     case 0x44:  /* X_COLOR */
 875     case 0x48:  /* M_CONTROL */
 876     case 0x4c:  /* BSTAMP_WSS_DATA */
 877     case 0x50:  /* S_CARR */
 878     case 0x54:  /* LINE21 */
 879     case 0x58:  /* LN_SEL */
 880     case 0x5c:  /* L21__WC_CTL */
 881     case 0x60:  /* HTRIGGER_VTRIGGER */
 882     case 0x64:  /* SAVID__EAVID */
 883     case 0x68:  /* FLEN__FAL */
 884     case 0x6c:  /* LAL__PHASE_RESET */
 885     case 0x70:  /* HS_INT_START_STOP_X */
 886     case 0x74:  /* HS_EXT_START_STOP_X */
 887     case 0x78:  /* VS_INT_START_X */
 888     case 0x7c:  /* VS_INT_STOP_X__VS_INT_START_Y */
 889     case 0x80:  /* VS_INT_STOP_Y__VS_INT_START_X */
 890     case 0x84:  /* VS_EXT_STOP_X__VS_EXT_START_Y */
 891     case 0x88:  /* VS_EXT_STOP_Y */
 892     case 0x90:  /* AVID_START_STOP_X */
 893     case 0x94:  /* AVID_START_STOP_Y */
 894     case 0xa0:  /* FID_INT_START_X__FID_INT_START_Y */
 895     case 0xa4:  /* FID_INT_OFFSET_Y__FID_EXT_START_X */
 896     case 0xa8:  /* FID_EXT_START_Y__FID_EXT_OFFSET_Y */
 897     case 0xb0:  /* TVDETGP_INT_START_STOP_X */
 898     case 0xb4:  /* TVDETGP_INT_START_STOP_Y */
 899     case 0xb8:  /* GEN_CTRL */
 900     case 0xc4:  /* DAC_TST__DAC_A */
 901     case 0xc8:  /* DAC_B__DAC_C */
 902         return 0;
 903
 904     default:
 905         break;
 906     }
 907     OMAP_BAD_REG(addr);
 908     return 0;
 909 }
 910
 911 static void omap_venc_write(void *opaque, target_phys_addr_t addr,
 912                 uint32_t value)
 913 {
 914     switch (addr) {
 915     case 0x08:  /* F_CONTROL */
 916     case 0x10:  /* VIDOUT_CTRL */
 917     case 0x14:  /* SYNC_CTRL */
 918     case 0x1c:  /* LLEN */
 919     case 0x20:  /* FLENS */
 920     case 0x24:  /* HFLTR_CTRL */
 921     case 0x28:  /* CC_CARR_WSS_CARR */
 922     case 0x2c:  /* C_PHASE */
 923     case 0x30:  /* GAIN_U */
 924     case 0x34:  /* GAIN_V */
 925     case 0x38:  /* GAIN_Y */
 926     case 0x3c:  /* BLACK_LEVEL */
 927     case 0x40:  /* BLANK_LEVEL */
 928     case 0x44:  /* X_COLOR */
 929     case 0x48:  /* M_CONTROL */
 930     case 0x4c:  /* BSTAMP_WSS_DATA */
 931     case 0x50:  /* S_CARR */
 932     case 0x54:  /* LINE21 */
 933     case 0x58:  /* LN_SEL */
 934     case 0x5c:  /* L21__WC_CTL */
 935     case 0x60:  /* HTRIGGER_VTRIGGER */
 936     case 0x64:  /* SAVID__EAVID */
 937     case 0x68:  /* FLEN__FAL */
 938     case 0x6c:  /* LAL__PHASE_RESET */
 939     case 0x70:  /* HS_INT_START_STOP_X */
 940     case 0x74:  /* HS_EXT_START_STOP_X */
 941     case 0x78:  /* VS_INT_START_X */
 942     case 0x7c:  /* VS_INT_STOP_X__VS_INT_START_Y */
 943     case 0x80:  /* VS_INT_STOP_Y__VS_INT_START_X */
 944     case 0x84:  /* VS_EXT_STOP_X__VS_EXT_START_Y */
 945     case 0x88:  /* VS_EXT_STOP_Y */
 946     case 0x90:  /* AVID_START_STOP_X */
 947     case 0x94:  /* AVID_START_STOP_Y */
 948     case 0xa0:  /* FID_INT_START_X__FID_INT_START_Y */
 949     case 0xa4:  /* FID_INT_OFFSET_Y__FID_EXT_START_X */
 950     case 0xa8:  /* FID_EXT_START_Y__FID_EXT_OFFSET_Y */
 951     case 0xb0:  /* TVDETGP_INT_START_STOP_X */
 952     case 0xb4:  /* TVDETGP_INT_START_STOP_Y */
 953     case 0xb8:  /* GEN_CTRL */
 954     case 0xc4:  /* DAC_TST__DAC_A */
 955     case 0xc8:  /* DAC_B__DAC_C */
 956         break;
 957
 958     default:
 959         OMAP_BAD_REG(addr);
 960     }
 961 }
 962
 963 static CPUReadMemoryFunc * const omap_venc1_readfn[] = {
 964     omap_badwidth_read32,
 965     omap_badwidth_read32,
 966     omap_venc_read,
 967 };
 968
 969 static CPUWriteMemoryFunc * const omap_venc1_writefn[] = {
 970     omap_badwidth_write32,
 971     omap_badwidth_write32,
 972     omap_venc_write,
 973 };
 974
 975 static uint32_t omap_im3_read(void *opaque, target_phys_addr_t addr)
 976 {
 977     switch (addr) {
 978     case 0x0a8: /* SBIMERRLOGA */
 979     case 0x0b0: /* SBIMERRLOG */
 980     case 0x190: /* SBIMSTATE */
 981     case 0x198: /* SBTMSTATE_L */
 982     case 0x19c: /* SBTMSTATE_H */
 983     case 0x1a8: /* SBIMCONFIG_L */
 984     case 0x1ac: /* SBIMCONFIG_H */
 985     case 0x1f8: /* SBID_L */
 986     case 0x1fc: /* SBID_H */
 987         return 0;
 988
 989     default:
 990         break;
 991     }
 992     OMAP_BAD_REG(addr);
 993     return 0;
 994 }
 995
 996 static void omap_im3_write(void *opaque, target_phys_addr_t addr,
 997                 uint32_t value)
 998 {
 999     switch (addr) {
1000     case 0x0b0: /* SBIMERRLOG */
1001     case 0x190: /* SBIMSTATE */
1002     case 0x198: /* SBTMSTATE_L */
1003     case 0x19c: /* SBTMSTATE_H */
1004     case 0x1a8: /* SBIMCONFIG_L */
1005     case 0x1ac: /* SBIMCONFIG_H */
1006         break;
1007
1008     default:
1009         OMAP_BAD_REG(addr);
1010     }
1011 }
1012
1013 static CPUReadMemoryFunc * const omap_im3_readfn[] = {
1014     omap_badwidth_read32,
1015     omap_badwidth_read32,
1016     omap_im3_read,
1017 };
1018
1019 static CPUWriteMemoryFunc * const omap_im3_writefn[] = {
1020     omap_badwidth_write32,
1021     omap_badwidth_write32,
1022     omap_im3_write,
1023 };
1024
1025 struct omap_dss_s *omap_dss_init(struct omap_target_agent_s *ta,
1026                 target_phys_addr_t l3_base,
1027                 qemu_irq irq, qemu_irq drq,
1028                 omap_clk fck1, omap_clk fck2, omap_clk ck54m,
1029                 omap_clk ick1, omap_clk ick2)
1030 {
1031     int iomemtype[5];
1032     struct omap_dss_s *s = (struct omap_dss_s *)
1033             qemu_mallocz(sizeof(struct omap_dss_s));
1034
1035     s->irq = irq;
1036     s->drq = drq;
1037     omap_dss_reset(s);
1038
1039     iomemtype[0] = l4_register_io_memory(omap_diss1_readfn,
1040                     omap_diss1_writefn, s);
1041     iomemtype[1] = l4_register_io_memory(omap_disc1_readfn,
1042                     omap_disc1_writefn, s);
1043     iomemtype[2] = l4_register_io_memory(omap_rfbi1_readfn,
1044                     omap_rfbi1_writefn, s);
1045     iomemtype[3] = l4_register_io_memory(omap_venc1_readfn,
1046                     omap_venc1_writefn, s);
1047     iomemtype[4] = cpu_register_io_memory(omap_im3_readfn,
1048                     omap_im3_writefn, s);
1049     omap_l4_attach(ta, 0, iomemtype[0]);
1050     omap_l4_attach(ta, 1, iomemtype[1]);
1051     omap_l4_attach(ta, 2, iomemtype[2]);
1052     omap_l4_attach(ta, 3, iomemtype[3]);
1053     cpu_register_physical_memory(l3_base, 0x1000, iomemtype[4]);
1054
1055 #if 0
1056     s->state = graphic_console_init(omap_update_display,
1057                                     omap_invalidate_display, omap_screen_dump, s);
1058 #endif
1059
1060     return s;
1061 }
1062
1063 void omap_rfbi_attach(struct omap_dss_s *s, int cs, struct rfbi_chip_s *chip)
1064 {
1065     if (cs < 0 || cs > 1)
1066         hw_error("%s: wrong CS %i\n", __FUNCTION__, cs);
1067     s->rfbi.chip[cs] = chip;
1068 }