1 /* 2 * QEMU Cirrus CLGD 54xx VGA Emulator. 3 * 4 * Copyright (c) 2004 Fabrice Bellard 5 * Copyright (c) 2004 Makoto Suzuki (suzu) 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 /* 26 * Reference: Finn Thogersons' VGADOC4b 27 * available at http://home.worldonline.dk/~finth/ 28 */ 29 #include "qemu/osdep.h" 30 #include "qemu/units.h" 31 #include "qapi/error.h" 32 #include "trace.h" 33 #include "hw/hw.h" 34 #include "hw/pci/pci.h" 35 #include "ui/pixel_ops.h" 36 #include "vga_int.h" 37 #include "hw/loader.h" 38 39 /* 40 * TODO: 41 * - destination write mask support not complete (bits 5..7) 42 * - optimize linear mappings 43 * - optimize bitblt functions 44 */ 45 46 //#define DEBUG_CIRRUS 47 //#define DEBUG_BITBLT 48 49 /*************************************** 50 * 51 * definitions 52 * 53 ***************************************/ 54 55 // ID 56 #define CIRRUS_ID_CLGD5422 (0x23<<2) 57 #define CIRRUS_ID_CLGD5426 (0x24<<2) 58 #define CIRRUS_ID_CLGD5424 (0x25<<2) 59 #define CIRRUS_ID_CLGD5428 (0x26<<2) 60 #define CIRRUS_ID_CLGD5430 (0x28<<2) 61 #define CIRRUS_ID_CLGD5434 (0x2A<<2) 62 #define CIRRUS_ID_CLGD5436 (0x2B<<2) 63 #define CIRRUS_ID_CLGD5446 (0x2E<<2) 64 65 // sequencer 0x07 66 #define CIRRUS_SR7_BPP_VGA 0x00 67 #define CIRRUS_SR7_BPP_SVGA 0x01 68 #define CIRRUS_SR7_BPP_MASK 0x0e 69 #define CIRRUS_SR7_BPP_8 0x00 70 #define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02 71 #define CIRRUS_SR7_BPP_24 0x04 72 #define CIRRUS_SR7_BPP_16 0x06 73 #define CIRRUS_SR7_BPP_32 0x08 74 #define CIRRUS_SR7_ISAADDR_MASK 0xe0 75 76 // sequencer 0x0f 77 #define CIRRUS_MEMSIZE_512k 0x08 78 #define CIRRUS_MEMSIZE_1M 0x10 79 #define CIRRUS_MEMSIZE_2M 0x18 80 #define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled. 81 82 // sequencer 0x12 83 #define CIRRUS_CURSOR_SHOW 0x01 84 #define CIRRUS_CURSOR_HIDDENPEL 0x02 85 #define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear 86 87 // sequencer 0x17 88 #define CIRRUS_BUSTYPE_VLBFAST 0x10 89 #define CIRRUS_BUSTYPE_PCI 0x20 90 #define CIRRUS_BUSTYPE_VLBSLOW 0x30 91 #define CIRRUS_BUSTYPE_ISA 0x38 92 #define CIRRUS_MMIO_ENABLE 0x04 93 #define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared. 94 #define CIRRUS_MEMSIZEEXT_DOUBLE 0x80 95 96 // control 0x0b 97 #define CIRRUS_BANKING_DUAL 0x01 98 #define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k 99 100 // control 0x30 101 #define CIRRUS_BLTMODE_BACKWARDS 0x01 102 #define CIRRUS_BLTMODE_MEMSYSDEST 0x02 103 #define CIRRUS_BLTMODE_MEMSYSSRC 0x04 104 #define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08 105 #define CIRRUS_BLTMODE_PATTERNCOPY 0x40 106 #define CIRRUS_BLTMODE_COLOREXPAND 0x80 107 #define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30 108 #define CIRRUS_BLTMODE_PIXELWIDTH8 0x00 109 #define CIRRUS_BLTMODE_PIXELWIDTH16 0x10 110 #define CIRRUS_BLTMODE_PIXELWIDTH24 0x20 111 #define CIRRUS_BLTMODE_PIXELWIDTH32 0x30 112 113 // control 0x31 114 #define CIRRUS_BLT_BUSY 0x01 115 #define CIRRUS_BLT_START 0x02 116 #define CIRRUS_BLT_RESET 0x04 117 #define CIRRUS_BLT_FIFOUSED 0x10 118 #define CIRRUS_BLT_AUTOSTART 0x80 119 120 // control 0x32 121 #define CIRRUS_ROP_0 0x00 122 #define CIRRUS_ROP_SRC_AND_DST 0x05 123 #define CIRRUS_ROP_NOP 0x06 124 #define CIRRUS_ROP_SRC_AND_NOTDST 0x09 125 #define CIRRUS_ROP_NOTDST 0x0b 126 #define CIRRUS_ROP_SRC 0x0d 127 #define CIRRUS_ROP_1 0x0e 128 #define CIRRUS_ROP_NOTSRC_AND_DST 0x50 129 #define CIRRUS_ROP_SRC_XOR_DST 0x59 130 #define CIRRUS_ROP_SRC_OR_DST 0x6d 131 #define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90 132 #define CIRRUS_ROP_SRC_NOTXOR_DST 0x95 133 #define CIRRUS_ROP_SRC_OR_NOTDST 0xad 134 #define CIRRUS_ROP_NOTSRC 0xd0 135 #define CIRRUS_ROP_NOTSRC_OR_DST 0xd6 136 #define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda 137 138 #define CIRRUS_ROP_NOP_INDEX 2 139 #define CIRRUS_ROP_SRC_INDEX 5 140 141 // control 0x33 142 #define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04 143 #define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02 144 #define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01 145 146 // memory-mapped IO 147 #define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword 148 #define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword 149 #define CIRRUS_MMIO_BLTWIDTH 0x08 // word 150 #define CIRRUS_MMIO_BLTHEIGHT 0x0a // word 151 #define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word 152 #define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word 153 #define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword 154 #define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword 155 #define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte 156 #define CIRRUS_MMIO_BLTMODE 0x18 // byte 157 #define CIRRUS_MMIO_BLTROP 0x1a // byte 158 #define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte 159 #define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word? 160 #define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word? 161 #define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word 162 #define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word 163 #define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word 164 #define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word 165 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte 166 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte 167 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte 168 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte 169 #define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word 170 #define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word 171 #define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word 172 #define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word 173 #define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte 174 #define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte 175 #define CIRRUS_MMIO_BLTSTATUS 0x40 // byte 176 177 #define CIRRUS_PNPMMIO_SIZE 0x1000 178 179 struct CirrusVGAState; 180 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s, 181 uint32_t dstaddr, uint32_t srcaddr, 182 int dstpitch, int srcpitch, 183 int bltwidth, int bltheight); 184 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s, 185 uint32_t dstaddr, int dst_pitch, 186 int width, int height); 187 188 typedef struct CirrusVGAState { 189 VGACommonState vga; 190 191 MemoryRegion cirrus_vga_io; 192 MemoryRegion cirrus_linear_io; 193 MemoryRegion cirrus_linear_bitblt_io; 194 MemoryRegion cirrus_mmio_io; 195 MemoryRegion pci_bar; 196 bool linear_vram; /* vga.vram mapped over cirrus_linear_io */ 197 MemoryRegion low_mem_container; /* container for 0xa0000-0xc0000 */ 198 MemoryRegion low_mem; /* always mapped, overridden by: */ 199 MemoryRegion cirrus_bank[2]; /* aliases at 0xa0000-0xb0000 */ 200 uint32_t cirrus_addr_mask; 201 uint32_t linear_mmio_mask; 202 uint8_t cirrus_shadow_gr0; 203 uint8_t cirrus_shadow_gr1; 204 uint8_t cirrus_hidden_dac_lockindex; 205 uint8_t cirrus_hidden_dac_data; 206 uint32_t cirrus_bank_base[2]; 207 uint32_t cirrus_bank_limit[2]; 208 uint8_t cirrus_hidden_palette[48]; 209 bool enable_blitter; 210 int cirrus_blt_pixelwidth; 211 int cirrus_blt_width; 212 int cirrus_blt_height; 213 int cirrus_blt_dstpitch; 214 int cirrus_blt_srcpitch; 215 uint32_t cirrus_blt_fgcol; 216 uint32_t cirrus_blt_bgcol; 217 uint32_t cirrus_blt_dstaddr; 218 uint32_t cirrus_blt_srcaddr; 219 uint8_t cirrus_blt_mode; 220 uint8_t cirrus_blt_modeext; 221 cirrus_bitblt_rop_t cirrus_rop; 222 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */ 223 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE]; 224 uint8_t *cirrus_srcptr; 225 uint8_t *cirrus_srcptr_end; 226 uint32_t cirrus_srccounter; 227 /* hwcursor display state */ 228 int last_hw_cursor_size; 229 int last_hw_cursor_x; 230 int last_hw_cursor_y; 231 int last_hw_cursor_y_start; 232 int last_hw_cursor_y_end; 233 int real_vram_size; /* XXX: suppress that */ 234 int device_id; 235 int bustype; 236 } CirrusVGAState; 237 238 typedef struct PCICirrusVGAState { 239 PCIDevice dev; 240 CirrusVGAState cirrus_vga; 241 } PCICirrusVGAState; 242 243 #define TYPE_PCI_CIRRUS_VGA "cirrus-vga" 244 #define PCI_CIRRUS_VGA(obj) \ 245 OBJECT_CHECK(PCICirrusVGAState, (obj), TYPE_PCI_CIRRUS_VGA) 246 247 #define TYPE_ISA_CIRRUS_VGA "isa-cirrus-vga" 248 #define ISA_CIRRUS_VGA(obj) \ 249 OBJECT_CHECK(ISACirrusVGAState, (obj), TYPE_ISA_CIRRUS_VGA) 250 251 typedef struct ISACirrusVGAState { 252 ISADevice parent_obj; 253 254 CirrusVGAState cirrus_vga; 255 } ISACirrusVGAState; 256 257 static uint8_t rop_to_index[256]; 258 259 /*************************************** 260 * 261 * prototypes. 262 * 263 ***************************************/ 264 265 266 static void cirrus_bitblt_reset(CirrusVGAState *s); 267 static void cirrus_update_memory_access(CirrusVGAState *s); 268 269 /*************************************** 270 * 271 * raster operations 272 * 273 ***************************************/ 274 275 static bool blit_region_is_unsafe(struct CirrusVGAState *s, 276 int32_t pitch, int32_t addr) 277 { 278 if (!pitch) { 279 return true; 280 } 281 if (pitch < 0) { 282 int64_t min = addr 283 + ((int64_t)s->cirrus_blt_height - 1) * pitch 284 - s->cirrus_blt_width; 285 if (min < -1 || addr >= s->vga.vram_size) { 286 return true; 287 } 288 } else { 289 int64_t max = addr 290 + ((int64_t)s->cirrus_blt_height-1) * pitch 291 + s->cirrus_blt_width; 292 if (max > s->vga.vram_size) { 293 return true; 294 } 295 } 296 return false; 297 } 298 299 static bool blit_is_unsafe(struct CirrusVGAState *s, bool dst_only) 300 { 301 /* should be the case, see cirrus_bitblt_start */ 302 assert(s->cirrus_blt_width > 0); 303 assert(s->cirrus_blt_height > 0); 304 305 if (s->cirrus_blt_width > CIRRUS_BLTBUFSIZE) { 306 return true; 307 } 308 309 if (blit_region_is_unsafe(s, s->cirrus_blt_dstpitch, 310 s->cirrus_blt_dstaddr)) { 311 return true; 312 } 313 if (dst_only) { 314 return false; 315 } 316 if (blit_region_is_unsafe(s, s->cirrus_blt_srcpitch, 317 s->cirrus_blt_srcaddr)) { 318 return true; 319 } 320 321 return false; 322 } 323 324 static void cirrus_bitblt_rop_nop(CirrusVGAState *s, 325 uint32_t dstaddr, uint32_t srcaddr, 326 int dstpitch,int srcpitch, 327 int bltwidth,int bltheight) 328 { 329 } 330 331 static void cirrus_bitblt_fill_nop(CirrusVGAState *s, 332 uint32_t dstaddr, 333 int dstpitch, int bltwidth,int bltheight) 334 { 335 } 336 337 static inline uint8_t cirrus_src(CirrusVGAState *s, uint32_t srcaddr) 338 { 339 if (s->cirrus_srccounter) { 340 /* cputovideo */ 341 return s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1)]; 342 } else { 343 /* videotovideo */ 344 return s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask]; 345 } 346 } 347 348 static inline uint16_t cirrus_src16(CirrusVGAState *s, uint32_t srcaddr) 349 { 350 uint16_t *src; 351 352 if (s->cirrus_srccounter) { 353 /* cputovideo */ 354 src = (void *)&s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1) & ~1]; 355 } else { 356 /* videotovideo */ 357 src = (void *)&s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask & ~1]; 358 } 359 return *src; 360 } 361 362 static inline uint32_t cirrus_src32(CirrusVGAState *s, uint32_t srcaddr) 363 { 364 uint32_t *src; 365 366 if (s->cirrus_srccounter) { 367 /* cputovideo */ 368 src = (void *)&s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1) & ~3]; 369 } else { 370 /* videotovideo */ 371 src = (void *)&s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask & ~3]; 372 } 373 return *src; 374 } 375 376 #define ROP_NAME 0 377 #define ROP_FN(d, s) 0 378 #include "cirrus_vga_rop.h" 379 380 #define ROP_NAME src_and_dst 381 #define ROP_FN(d, s) (s) & (d) 382 #include "cirrus_vga_rop.h" 383 384 #define ROP_NAME src_and_notdst 385 #define ROP_FN(d, s) (s) & (~(d)) 386 #include "cirrus_vga_rop.h" 387 388 #define ROP_NAME notdst 389 #define ROP_FN(d, s) ~(d) 390 #include "cirrus_vga_rop.h" 391 392 #define ROP_NAME src 393 #define ROP_FN(d, s) s 394 #include "cirrus_vga_rop.h" 395 396 #define ROP_NAME 1 397 #define ROP_FN(d, s) ~0 398 #include "cirrus_vga_rop.h" 399 400 #define ROP_NAME notsrc_and_dst 401 #define ROP_FN(d, s) (~(s)) & (d) 402 #include "cirrus_vga_rop.h" 403 404 #define ROP_NAME src_xor_dst 405 #define ROP_FN(d, s) (s) ^ (d) 406 #include "cirrus_vga_rop.h" 407 408 #define ROP_NAME src_or_dst 409 #define ROP_FN(d, s) (s) | (d) 410 #include "cirrus_vga_rop.h" 411 412 #define ROP_NAME notsrc_or_notdst 413 #define ROP_FN(d, s) (~(s)) | (~(d)) 414 #include "cirrus_vga_rop.h" 415 416 #define ROP_NAME src_notxor_dst 417 #define ROP_FN(d, s) ~((s) ^ (d)) 418 #include "cirrus_vga_rop.h" 419 420 #define ROP_NAME src_or_notdst 421 #define ROP_FN(d, s) (s) | (~(d)) 422 #include "cirrus_vga_rop.h" 423 424 #define ROP_NAME notsrc 425 #define ROP_FN(d, s) (~(s)) 426 #include "cirrus_vga_rop.h" 427 428 #define ROP_NAME notsrc_or_dst 429 #define ROP_FN(d, s) (~(s)) | (d) 430 #include "cirrus_vga_rop.h" 431 432 #define ROP_NAME notsrc_and_notdst 433 #define ROP_FN(d, s) (~(s)) & (~(d)) 434 #include "cirrus_vga_rop.h" 435 436 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = { 437 cirrus_bitblt_rop_fwd_0, 438 cirrus_bitblt_rop_fwd_src_and_dst, 439 cirrus_bitblt_rop_nop, 440 cirrus_bitblt_rop_fwd_src_and_notdst, 441 cirrus_bitblt_rop_fwd_notdst, 442 cirrus_bitblt_rop_fwd_src, 443 cirrus_bitblt_rop_fwd_1, 444 cirrus_bitblt_rop_fwd_notsrc_and_dst, 445 cirrus_bitblt_rop_fwd_src_xor_dst, 446 cirrus_bitblt_rop_fwd_src_or_dst, 447 cirrus_bitblt_rop_fwd_notsrc_or_notdst, 448 cirrus_bitblt_rop_fwd_src_notxor_dst, 449 cirrus_bitblt_rop_fwd_src_or_notdst, 450 cirrus_bitblt_rop_fwd_notsrc, 451 cirrus_bitblt_rop_fwd_notsrc_or_dst, 452 cirrus_bitblt_rop_fwd_notsrc_and_notdst, 453 }; 454 455 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = { 456 cirrus_bitblt_rop_bkwd_0, 457 cirrus_bitblt_rop_bkwd_src_and_dst, 458 cirrus_bitblt_rop_nop, 459 cirrus_bitblt_rop_bkwd_src_and_notdst, 460 cirrus_bitblt_rop_bkwd_notdst, 461 cirrus_bitblt_rop_bkwd_src, 462 cirrus_bitblt_rop_bkwd_1, 463 cirrus_bitblt_rop_bkwd_notsrc_and_dst, 464 cirrus_bitblt_rop_bkwd_src_xor_dst, 465 cirrus_bitblt_rop_bkwd_src_or_dst, 466 cirrus_bitblt_rop_bkwd_notsrc_or_notdst, 467 cirrus_bitblt_rop_bkwd_src_notxor_dst, 468 cirrus_bitblt_rop_bkwd_src_or_notdst, 469 cirrus_bitblt_rop_bkwd_notsrc, 470 cirrus_bitblt_rop_bkwd_notsrc_or_dst, 471 cirrus_bitblt_rop_bkwd_notsrc_and_notdst, 472 }; 473 474 #define TRANSP_ROP(name) {\ 475 name ## _8,\ 476 name ## _16,\ 477 } 478 #define TRANSP_NOP(func) {\ 479 func,\ 480 func,\ 481 } 482 483 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = { 484 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0), 485 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst), 486 TRANSP_NOP(cirrus_bitblt_rop_nop), 487 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst), 488 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst), 489 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src), 490 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1), 491 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst), 492 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst), 493 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst), 494 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst), 495 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst), 496 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst), 497 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc), 498 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst), 499 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst), 500 }; 501 502 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = { 503 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0), 504 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst), 505 TRANSP_NOP(cirrus_bitblt_rop_nop), 506 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst), 507 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst), 508 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src), 509 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1), 510 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst), 511 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst), 512 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst), 513 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst), 514 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst), 515 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst), 516 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc), 517 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst), 518 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst), 519 }; 520 521 #define ROP2(name) {\ 522 name ## _8,\ 523 name ## _16,\ 524 name ## _24,\ 525 name ## _32,\ 526 } 527 528 #define ROP_NOP2(func) {\ 529 func,\ 530 func,\ 531 func,\ 532 func,\ 533 } 534 535 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = { 536 ROP2(cirrus_patternfill_0), 537 ROP2(cirrus_patternfill_src_and_dst), 538 ROP_NOP2(cirrus_bitblt_rop_nop), 539 ROP2(cirrus_patternfill_src_and_notdst), 540 ROP2(cirrus_patternfill_notdst), 541 ROP2(cirrus_patternfill_src), 542 ROP2(cirrus_patternfill_1), 543 ROP2(cirrus_patternfill_notsrc_and_dst), 544 ROP2(cirrus_patternfill_src_xor_dst), 545 ROP2(cirrus_patternfill_src_or_dst), 546 ROP2(cirrus_patternfill_notsrc_or_notdst), 547 ROP2(cirrus_patternfill_src_notxor_dst), 548 ROP2(cirrus_patternfill_src_or_notdst), 549 ROP2(cirrus_patternfill_notsrc), 550 ROP2(cirrus_patternfill_notsrc_or_dst), 551 ROP2(cirrus_patternfill_notsrc_and_notdst), 552 }; 553 554 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = { 555 ROP2(cirrus_colorexpand_transp_0), 556 ROP2(cirrus_colorexpand_transp_src_and_dst), 557 ROP_NOP2(cirrus_bitblt_rop_nop), 558 ROP2(cirrus_colorexpand_transp_src_and_notdst), 559 ROP2(cirrus_colorexpand_transp_notdst), 560 ROP2(cirrus_colorexpand_transp_src), 561 ROP2(cirrus_colorexpand_transp_1), 562 ROP2(cirrus_colorexpand_transp_notsrc_and_dst), 563 ROP2(cirrus_colorexpand_transp_src_xor_dst), 564 ROP2(cirrus_colorexpand_transp_src_or_dst), 565 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst), 566 ROP2(cirrus_colorexpand_transp_src_notxor_dst), 567 ROP2(cirrus_colorexpand_transp_src_or_notdst), 568 ROP2(cirrus_colorexpand_transp_notsrc), 569 ROP2(cirrus_colorexpand_transp_notsrc_or_dst), 570 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst), 571 }; 572 573 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = { 574 ROP2(cirrus_colorexpand_0), 575 ROP2(cirrus_colorexpand_src_and_dst), 576 ROP_NOP2(cirrus_bitblt_rop_nop), 577 ROP2(cirrus_colorexpand_src_and_notdst), 578 ROP2(cirrus_colorexpand_notdst), 579 ROP2(cirrus_colorexpand_src), 580 ROP2(cirrus_colorexpand_1), 581 ROP2(cirrus_colorexpand_notsrc_and_dst), 582 ROP2(cirrus_colorexpand_src_xor_dst), 583 ROP2(cirrus_colorexpand_src_or_dst), 584 ROP2(cirrus_colorexpand_notsrc_or_notdst), 585 ROP2(cirrus_colorexpand_src_notxor_dst), 586 ROP2(cirrus_colorexpand_src_or_notdst), 587 ROP2(cirrus_colorexpand_notsrc), 588 ROP2(cirrus_colorexpand_notsrc_or_dst), 589 ROP2(cirrus_colorexpand_notsrc_and_notdst), 590 }; 591 592 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = { 593 ROP2(cirrus_colorexpand_pattern_transp_0), 594 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst), 595 ROP_NOP2(cirrus_bitblt_rop_nop), 596 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst), 597 ROP2(cirrus_colorexpand_pattern_transp_notdst), 598 ROP2(cirrus_colorexpand_pattern_transp_src), 599 ROP2(cirrus_colorexpand_pattern_transp_1), 600 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst), 601 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst), 602 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst), 603 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst), 604 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst), 605 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst), 606 ROP2(cirrus_colorexpand_pattern_transp_notsrc), 607 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst), 608 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst), 609 }; 610 611 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = { 612 ROP2(cirrus_colorexpand_pattern_0), 613 ROP2(cirrus_colorexpand_pattern_src_and_dst), 614 ROP_NOP2(cirrus_bitblt_rop_nop), 615 ROP2(cirrus_colorexpand_pattern_src_and_notdst), 616 ROP2(cirrus_colorexpand_pattern_notdst), 617 ROP2(cirrus_colorexpand_pattern_src), 618 ROP2(cirrus_colorexpand_pattern_1), 619 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst), 620 ROP2(cirrus_colorexpand_pattern_src_xor_dst), 621 ROP2(cirrus_colorexpand_pattern_src_or_dst), 622 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst), 623 ROP2(cirrus_colorexpand_pattern_src_notxor_dst), 624 ROP2(cirrus_colorexpand_pattern_src_or_notdst), 625 ROP2(cirrus_colorexpand_pattern_notsrc), 626 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst), 627 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst), 628 }; 629 630 static const cirrus_fill_t cirrus_fill[16][4] = { 631 ROP2(cirrus_fill_0), 632 ROP2(cirrus_fill_src_and_dst), 633 ROP_NOP2(cirrus_bitblt_fill_nop), 634 ROP2(cirrus_fill_src_and_notdst), 635 ROP2(cirrus_fill_notdst), 636 ROP2(cirrus_fill_src), 637 ROP2(cirrus_fill_1), 638 ROP2(cirrus_fill_notsrc_and_dst), 639 ROP2(cirrus_fill_src_xor_dst), 640 ROP2(cirrus_fill_src_or_dst), 641 ROP2(cirrus_fill_notsrc_or_notdst), 642 ROP2(cirrus_fill_src_notxor_dst), 643 ROP2(cirrus_fill_src_or_notdst), 644 ROP2(cirrus_fill_notsrc), 645 ROP2(cirrus_fill_notsrc_or_dst), 646 ROP2(cirrus_fill_notsrc_and_notdst), 647 }; 648 649 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s) 650 { 651 unsigned int color; 652 switch (s->cirrus_blt_pixelwidth) { 653 case 1: 654 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1; 655 break; 656 case 2: 657 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8); 658 s->cirrus_blt_fgcol = le16_to_cpu(color); 659 break; 660 case 3: 661 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 | 662 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16); 663 break; 664 default: 665 case 4: 666 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) | 667 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24); 668 s->cirrus_blt_fgcol = le32_to_cpu(color); 669 break; 670 } 671 } 672 673 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s) 674 { 675 unsigned int color; 676 switch (s->cirrus_blt_pixelwidth) { 677 case 1: 678 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0; 679 break; 680 case 2: 681 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8); 682 s->cirrus_blt_bgcol = le16_to_cpu(color); 683 break; 684 case 3: 685 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 | 686 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16); 687 break; 688 default: 689 case 4: 690 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) | 691 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24); 692 s->cirrus_blt_bgcol = le32_to_cpu(color); 693 break; 694 } 695 } 696 697 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin, 698 int off_pitch, int bytesperline, 699 int lines) 700 { 701 int y; 702 int off_cur; 703 int off_cur_end; 704 705 if (off_pitch < 0) { 706 off_begin -= bytesperline - 1; 707 } 708 709 for (y = 0; y < lines; y++) { 710 off_cur = off_begin; 711 off_cur_end = ((off_cur + bytesperline - 1) & s->cirrus_addr_mask) + 1; 712 assert(off_cur_end >= off_cur); 713 memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur); 714 off_begin += off_pitch; 715 } 716 } 717 718 static int cirrus_bitblt_common_patterncopy(CirrusVGAState *s) 719 { 720 uint32_t patternsize; 721 bool videosrc = !s->cirrus_srccounter; 722 723 if (videosrc) { 724 switch (s->vga.get_bpp(&s->vga)) { 725 case 8: 726 patternsize = 64; 727 break; 728 case 15: 729 case 16: 730 patternsize = 128; 731 break; 732 case 24: 733 case 32: 734 default: 735 patternsize = 256; 736 break; 737 } 738 s->cirrus_blt_srcaddr &= ~(patternsize - 1); 739 if (s->cirrus_blt_srcaddr + patternsize > s->vga.vram_size) { 740 return 0; 741 } 742 } 743 744 if (blit_is_unsafe(s, true)) { 745 return 0; 746 } 747 748 (*s->cirrus_rop) (s, s->cirrus_blt_dstaddr, 749 videosrc ? s->cirrus_blt_srcaddr : 0, 750 s->cirrus_blt_dstpitch, 0, 751 s->cirrus_blt_width, s->cirrus_blt_height); 752 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 753 s->cirrus_blt_dstpitch, s->cirrus_blt_width, 754 s->cirrus_blt_height); 755 return 1; 756 } 757 758 /* fill */ 759 760 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop) 761 { 762 cirrus_fill_t rop_func; 763 764 if (blit_is_unsafe(s, true)) { 765 return 0; 766 } 767 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; 768 rop_func(s, s->cirrus_blt_dstaddr, 769 s->cirrus_blt_dstpitch, 770 s->cirrus_blt_width, s->cirrus_blt_height); 771 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 772 s->cirrus_blt_dstpitch, s->cirrus_blt_width, 773 s->cirrus_blt_height); 774 cirrus_bitblt_reset(s); 775 return 1; 776 } 777 778 /*************************************** 779 * 780 * bitblt (video-to-video) 781 * 782 ***************************************/ 783 784 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s) 785 { 786 return cirrus_bitblt_common_patterncopy(s); 787 } 788 789 static int cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h) 790 { 791 int sx = 0, sy = 0; 792 int dx = 0, dy = 0; 793 int depth = 0; 794 int notify = 0; 795 796 /* make sure to only copy if it's a plain copy ROP */ 797 if (*s->cirrus_rop == cirrus_bitblt_rop_fwd_src || 798 *s->cirrus_rop == cirrus_bitblt_rop_bkwd_src) { 799 800 int width, height; 801 802 depth = s->vga.get_bpp(&s->vga) / 8; 803 if (!depth) { 804 return 0; 805 } 806 s->vga.get_resolution(&s->vga, &width, &height); 807 808 /* extra x, y */ 809 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth; 810 sy = (src / ABS(s->cirrus_blt_srcpitch)); 811 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth; 812 dy = (dst / ABS(s->cirrus_blt_dstpitch)); 813 814 /* normalize width */ 815 w /= depth; 816 817 /* if we're doing a backward copy, we have to adjust 818 our x/y to be the upper left corner (instead of the lower 819 right corner) */ 820 if (s->cirrus_blt_dstpitch < 0) { 821 sx -= (s->cirrus_blt_width / depth) - 1; 822 dx -= (s->cirrus_blt_width / depth) - 1; 823 sy -= s->cirrus_blt_height - 1; 824 dy -= s->cirrus_blt_height - 1; 825 } 826 827 /* are we in the visible portion of memory? */ 828 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 && 829 (sx + w) <= width && (sy + h) <= height && 830 (dx + w) <= width && (dy + h) <= height) { 831 notify = 1; 832 } 833 } 834 835 (*s->cirrus_rop) (s, s->cirrus_blt_dstaddr, 836 s->cirrus_blt_srcaddr, 837 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch, 838 s->cirrus_blt_width, s->cirrus_blt_height); 839 840 if (notify) { 841 dpy_gfx_update(s->vga.con, dx, dy, 842 s->cirrus_blt_width / depth, 843 s->cirrus_blt_height); 844 } 845 846 /* we don't have to notify the display that this portion has 847 changed since qemu_console_copy implies this */ 848 849 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 850 s->cirrus_blt_dstpitch, s->cirrus_blt_width, 851 s->cirrus_blt_height); 852 853 return 1; 854 } 855 856 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s) 857 { 858 if (blit_is_unsafe(s, false)) 859 return 0; 860 861 return cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr, 862 s->cirrus_blt_srcaddr - s->vga.start_addr, 863 s->cirrus_blt_width, s->cirrus_blt_height); 864 } 865 866 /*************************************** 867 * 868 * bitblt (cpu-to-video) 869 * 870 ***************************************/ 871 872 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s) 873 { 874 int copy_count; 875 uint8_t *end_ptr; 876 877 if (s->cirrus_srccounter > 0) { 878 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) { 879 cirrus_bitblt_common_patterncopy(s); 880 the_end: 881 s->cirrus_srccounter = 0; 882 cirrus_bitblt_reset(s); 883 } else { 884 /* at least one scan line */ 885 do { 886 (*s->cirrus_rop)(s, s->cirrus_blt_dstaddr, 887 0, 0, 0, s->cirrus_blt_width, 1); 888 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0, 889 s->cirrus_blt_width, 1); 890 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch; 891 s->cirrus_srccounter -= s->cirrus_blt_srcpitch; 892 if (s->cirrus_srccounter <= 0) 893 goto the_end; 894 /* more bytes than needed can be transferred because of 895 word alignment, so we keep them for the next line */ 896 /* XXX: keep alignment to speed up transfer */ 897 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch; 898 copy_count = s->cirrus_srcptr_end - end_ptr; 899 memmove(s->cirrus_bltbuf, end_ptr, copy_count); 900 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count; 901 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch; 902 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end); 903 } 904 } 905 } 906 907 /*************************************** 908 * 909 * bitblt wrapper 910 * 911 ***************************************/ 912 913 static void cirrus_bitblt_reset(CirrusVGAState * s) 914 { 915 int need_update; 916 917 s->vga.gr[0x31] &= 918 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED); 919 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0] 920 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0]; 921 s->cirrus_srcptr = &s->cirrus_bltbuf[0]; 922 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0]; 923 s->cirrus_srccounter = 0; 924 if (!need_update) 925 return; 926 cirrus_update_memory_access(s); 927 } 928 929 static int cirrus_bitblt_cputovideo(CirrusVGAState * s) 930 { 931 int w; 932 933 if (blit_is_unsafe(s, true)) { 934 return 0; 935 } 936 937 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC; 938 s->cirrus_srcptr = &s->cirrus_bltbuf[0]; 939 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0]; 940 941 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) { 942 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) { 943 s->cirrus_blt_srcpitch = 8; 944 } else { 945 /* XXX: check for 24 bpp */ 946 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth; 947 } 948 s->cirrus_srccounter = s->cirrus_blt_srcpitch; 949 } else { 950 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) { 951 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth; 952 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY) 953 s->cirrus_blt_srcpitch = ((w + 31) >> 5); 954 else 955 s->cirrus_blt_srcpitch = ((w + 7) >> 3); 956 } else { 957 /* always align input size to 32 bits */ 958 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3; 959 } 960 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height; 961 } 962 963 /* the blit_is_unsafe call above should catch this */ 964 assert(s->cirrus_blt_srcpitch <= CIRRUS_BLTBUFSIZE); 965 966 s->cirrus_srcptr = s->cirrus_bltbuf; 967 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch; 968 cirrus_update_memory_access(s); 969 return 1; 970 } 971 972 static int cirrus_bitblt_videotocpu(CirrusVGAState * s) 973 { 974 /* XXX */ 975 #ifdef DEBUG_BITBLT 976 printf("cirrus: bitblt (video to cpu) is not implemented yet\n"); 977 #endif 978 return 0; 979 } 980 981 static int cirrus_bitblt_videotovideo(CirrusVGAState * s) 982 { 983 int ret; 984 985 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) { 986 ret = cirrus_bitblt_videotovideo_patterncopy(s); 987 } else { 988 ret = cirrus_bitblt_videotovideo_copy(s); 989 } 990 if (ret) 991 cirrus_bitblt_reset(s); 992 return ret; 993 } 994 995 static void cirrus_bitblt_start(CirrusVGAState * s) 996 { 997 uint8_t blt_rop; 998 999 if (!s->enable_blitter) { 1000 goto bitblt_ignore; 1001 } 1002 1003 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY; 1004 1005 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1; 1006 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1; 1007 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8)); 1008 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8)); 1009 s->cirrus_blt_dstaddr = 1010 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16)); 1011 s->cirrus_blt_srcaddr = 1012 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16)); 1013 s->cirrus_blt_mode = s->vga.gr[0x30]; 1014 s->cirrus_blt_modeext = s->vga.gr[0x33]; 1015 blt_rop = s->vga.gr[0x32]; 1016 1017 s->cirrus_blt_dstaddr &= s->cirrus_addr_mask; 1018 s->cirrus_blt_srcaddr &= s->cirrus_addr_mask; 1019 1020 #ifdef DEBUG_BITBLT 1021 printf("rop=0x%02x mode=0x%02x modeext=0x%02x w=%d h=%d dpitch=%d spitch=%d daddr=0x%08x saddr=0x%08x writemask=0x%02x\n", 1022 blt_rop, 1023 s->cirrus_blt_mode, 1024 s->cirrus_blt_modeext, 1025 s->cirrus_blt_width, 1026 s->cirrus_blt_height, 1027 s->cirrus_blt_dstpitch, 1028 s->cirrus_blt_srcpitch, 1029 s->cirrus_blt_dstaddr, 1030 s->cirrus_blt_srcaddr, 1031 s->vga.gr[0x2f]); 1032 #endif 1033 1034 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) { 1035 case CIRRUS_BLTMODE_PIXELWIDTH8: 1036 s->cirrus_blt_pixelwidth = 1; 1037 break; 1038 case CIRRUS_BLTMODE_PIXELWIDTH16: 1039 s->cirrus_blt_pixelwidth = 2; 1040 break; 1041 case CIRRUS_BLTMODE_PIXELWIDTH24: 1042 s->cirrus_blt_pixelwidth = 3; 1043 break; 1044 case CIRRUS_BLTMODE_PIXELWIDTH32: 1045 s->cirrus_blt_pixelwidth = 4; 1046 break; 1047 default: 1048 #ifdef DEBUG_BITBLT 1049 printf("cirrus: bitblt - pixel width is unknown\n"); 1050 #endif 1051 goto bitblt_ignore; 1052 } 1053 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK; 1054 1055 if ((s-> 1056 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC | 1057 CIRRUS_BLTMODE_MEMSYSDEST)) 1058 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) { 1059 #ifdef DEBUG_BITBLT 1060 printf("cirrus: bitblt - memory-to-memory copy is requested\n"); 1061 #endif 1062 goto bitblt_ignore; 1063 } 1064 1065 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) && 1066 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST | 1067 CIRRUS_BLTMODE_TRANSPARENTCOMP | 1068 CIRRUS_BLTMODE_PATTERNCOPY | 1069 CIRRUS_BLTMODE_COLOREXPAND)) == 1070 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) { 1071 cirrus_bitblt_fgcol(s); 1072 cirrus_bitblt_solidfill(s, blt_rop); 1073 } else { 1074 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND | 1075 CIRRUS_BLTMODE_PATTERNCOPY)) == 1076 CIRRUS_BLTMODE_COLOREXPAND) { 1077 1078 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) { 1079 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) 1080 cirrus_bitblt_bgcol(s); 1081 else 1082 cirrus_bitblt_fgcol(s); 1083 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; 1084 } else { 1085 cirrus_bitblt_fgcol(s); 1086 cirrus_bitblt_bgcol(s); 1087 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; 1088 } 1089 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) { 1090 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) { 1091 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) { 1092 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) 1093 cirrus_bitblt_bgcol(s); 1094 else 1095 cirrus_bitblt_fgcol(s); 1096 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; 1097 } else { 1098 cirrus_bitblt_fgcol(s); 1099 cirrus_bitblt_bgcol(s); 1100 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; 1101 } 1102 } else { 1103 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; 1104 } 1105 } else { 1106 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) { 1107 if (s->cirrus_blt_pixelwidth > 2) { 1108 printf("src transparent without colorexpand must be 8bpp or 16bpp\n"); 1109 goto bitblt_ignore; 1110 } 1111 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) { 1112 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch; 1113 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch; 1114 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; 1115 } else { 1116 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; 1117 } 1118 } else { 1119 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) { 1120 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch; 1121 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch; 1122 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]]; 1123 } else { 1124 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]]; 1125 } 1126 } 1127 } 1128 // setup bitblt engine. 1129 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) { 1130 if (!cirrus_bitblt_cputovideo(s)) 1131 goto bitblt_ignore; 1132 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) { 1133 if (!cirrus_bitblt_videotocpu(s)) 1134 goto bitblt_ignore; 1135 } else { 1136 if (!cirrus_bitblt_videotovideo(s)) 1137 goto bitblt_ignore; 1138 } 1139 } 1140 return; 1141 bitblt_ignore:; 1142 cirrus_bitblt_reset(s); 1143 } 1144 1145 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value) 1146 { 1147 unsigned old_value; 1148 1149 old_value = s->vga.gr[0x31]; 1150 s->vga.gr[0x31] = reg_value; 1151 1152 if (((old_value & CIRRUS_BLT_RESET) != 0) && 1153 ((reg_value & CIRRUS_BLT_RESET) == 0)) { 1154 cirrus_bitblt_reset(s); 1155 } else if (((old_value & CIRRUS_BLT_START) == 0) && 1156 ((reg_value & CIRRUS_BLT_START) != 0)) { 1157 cirrus_bitblt_start(s); 1158 } 1159 } 1160 1161 1162 /*************************************** 1163 * 1164 * basic parameters 1165 * 1166 ***************************************/ 1167 1168 static void cirrus_get_offsets(VGACommonState *s1, 1169 uint32_t *pline_offset, 1170 uint32_t *pstart_addr, 1171 uint32_t *pline_compare) 1172 { 1173 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga); 1174 uint32_t start_addr, line_offset, line_compare; 1175 1176 line_offset = s->vga.cr[0x13] 1177 | ((s->vga.cr[0x1b] & 0x10) << 4); 1178 line_offset <<= 3; 1179 *pline_offset = line_offset; 1180 1181 start_addr = (s->vga.cr[0x0c] << 8) 1182 | s->vga.cr[0x0d] 1183 | ((s->vga.cr[0x1b] & 0x01) << 16) 1184 | ((s->vga.cr[0x1b] & 0x0c) << 15) 1185 | ((s->vga.cr[0x1d] & 0x80) << 12); 1186 *pstart_addr = start_addr; 1187 1188 line_compare = s->vga.cr[0x18] | 1189 ((s->vga.cr[0x07] & 0x10) << 4) | 1190 ((s->vga.cr[0x09] & 0x40) << 3); 1191 *pline_compare = line_compare; 1192 } 1193 1194 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s) 1195 { 1196 uint32_t ret = 16; 1197 1198 switch (s->cirrus_hidden_dac_data & 0xf) { 1199 case 0: 1200 ret = 15; 1201 break; /* Sierra HiColor */ 1202 case 1: 1203 ret = 16; 1204 break; /* XGA HiColor */ 1205 default: 1206 #ifdef DEBUG_CIRRUS 1207 printf("cirrus: invalid DAC value %x in 16bpp\n", 1208 (s->cirrus_hidden_dac_data & 0xf)); 1209 #endif 1210 ret = 15; /* XXX */ 1211 break; 1212 } 1213 return ret; 1214 } 1215 1216 static int cirrus_get_bpp(VGACommonState *s1) 1217 { 1218 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga); 1219 uint32_t ret = 8; 1220 1221 if ((s->vga.sr[0x07] & 0x01) != 0) { 1222 /* Cirrus SVGA */ 1223 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) { 1224 case CIRRUS_SR7_BPP_8: 1225 ret = 8; 1226 break; 1227 case CIRRUS_SR7_BPP_16_DOUBLEVCLK: 1228 ret = cirrus_get_bpp16_depth(s); 1229 break; 1230 case CIRRUS_SR7_BPP_24: 1231 ret = 24; 1232 break; 1233 case CIRRUS_SR7_BPP_16: 1234 ret = cirrus_get_bpp16_depth(s); 1235 break; 1236 case CIRRUS_SR7_BPP_32: 1237 ret = 32; 1238 break; 1239 default: 1240 #ifdef DEBUG_CIRRUS 1241 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]); 1242 #endif 1243 ret = 8; 1244 break; 1245 } 1246 } else { 1247 /* VGA */ 1248 ret = 0; 1249 } 1250 1251 return ret; 1252 } 1253 1254 static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight) 1255 { 1256 int width, height; 1257 1258 width = (s->cr[0x01] + 1) * 8; 1259 height = s->cr[0x12] | 1260 ((s->cr[0x07] & 0x02) << 7) | 1261 ((s->cr[0x07] & 0x40) << 3); 1262 height = (height + 1); 1263 /* interlace support */ 1264 if (s->cr[0x1a] & 0x01) 1265 height = height * 2; 1266 *pwidth = width; 1267 *pheight = height; 1268 } 1269 1270 /*************************************** 1271 * 1272 * bank memory 1273 * 1274 ***************************************/ 1275 1276 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index) 1277 { 1278 unsigned offset; 1279 unsigned limit; 1280 1281 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */ 1282 offset = s->vga.gr[0x09 + bank_index]; 1283 else /* single bank */ 1284 offset = s->vga.gr[0x09]; 1285 1286 if ((s->vga.gr[0x0b] & 0x20) != 0) 1287 offset <<= 14; 1288 else 1289 offset <<= 12; 1290 1291 if (s->real_vram_size <= offset) 1292 limit = 0; 1293 else 1294 limit = s->real_vram_size - offset; 1295 1296 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) { 1297 if (limit > 0x8000) { 1298 offset += 0x8000; 1299 limit -= 0x8000; 1300 } else { 1301 limit = 0; 1302 } 1303 } 1304 1305 if (limit > 0) { 1306 s->cirrus_bank_base[bank_index] = offset; 1307 s->cirrus_bank_limit[bank_index] = limit; 1308 } else { 1309 s->cirrus_bank_base[bank_index] = 0; 1310 s->cirrus_bank_limit[bank_index] = 0; 1311 } 1312 } 1313 1314 /*************************************** 1315 * 1316 * I/O access between 0x3c4-0x3c5 1317 * 1318 ***************************************/ 1319 1320 static int cirrus_vga_read_sr(CirrusVGAState * s) 1321 { 1322 switch (s->vga.sr_index) { 1323 case 0x00: // Standard VGA 1324 case 0x01: // Standard VGA 1325 case 0x02: // Standard VGA 1326 case 0x03: // Standard VGA 1327 case 0x04: // Standard VGA 1328 return s->vga.sr[s->vga.sr_index]; 1329 case 0x06: // Unlock Cirrus extensions 1330 return s->vga.sr[s->vga.sr_index]; 1331 case 0x10: 1332 case 0x30: 1333 case 0x50: 1334 case 0x70: // Graphics Cursor X 1335 case 0x90: 1336 case 0xb0: 1337 case 0xd0: 1338 case 0xf0: // Graphics Cursor X 1339 return s->vga.sr[0x10]; 1340 case 0x11: 1341 case 0x31: 1342 case 0x51: 1343 case 0x71: // Graphics Cursor Y 1344 case 0x91: 1345 case 0xb1: 1346 case 0xd1: 1347 case 0xf1: // Graphics Cursor Y 1348 return s->vga.sr[0x11]; 1349 case 0x05: // ??? 1350 case 0x07: // Extended Sequencer Mode 1351 case 0x08: // EEPROM Control 1352 case 0x09: // Scratch Register 0 1353 case 0x0a: // Scratch Register 1 1354 case 0x0b: // VCLK 0 1355 case 0x0c: // VCLK 1 1356 case 0x0d: // VCLK 2 1357 case 0x0e: // VCLK 3 1358 case 0x0f: // DRAM Control 1359 case 0x12: // Graphics Cursor Attribute 1360 case 0x13: // Graphics Cursor Pattern Address 1361 case 0x14: // Scratch Register 2 1362 case 0x15: // Scratch Register 3 1363 case 0x16: // Performance Tuning Register 1364 case 0x17: // Configuration Readback and Extended Control 1365 case 0x18: // Signature Generator Control 1366 case 0x19: // Signal Generator Result 1367 case 0x1a: // Signal Generator Result 1368 case 0x1b: // VCLK 0 Denominator & Post 1369 case 0x1c: // VCLK 1 Denominator & Post 1370 case 0x1d: // VCLK 2 Denominator & Post 1371 case 0x1e: // VCLK 3 Denominator & Post 1372 case 0x1f: // BIOS Write Enable and MCLK select 1373 #ifdef DEBUG_CIRRUS 1374 printf("cirrus: handled inport sr_index %02x\n", s->vga.sr_index); 1375 #endif 1376 return s->vga.sr[s->vga.sr_index]; 1377 default: 1378 #ifdef DEBUG_CIRRUS 1379 printf("cirrus: inport sr_index %02x\n", s->vga.sr_index); 1380 #endif 1381 return 0xff; 1382 break; 1383 } 1384 } 1385 1386 static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val) 1387 { 1388 switch (s->vga.sr_index) { 1389 case 0x00: // Standard VGA 1390 case 0x01: // Standard VGA 1391 case 0x02: // Standard VGA 1392 case 0x03: // Standard VGA 1393 case 0x04: // Standard VGA 1394 s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index]; 1395 if (s->vga.sr_index == 1) 1396 s->vga.update_retrace_info(&s->vga); 1397 break; 1398 case 0x06: // Unlock Cirrus extensions 1399 val &= 0x17; 1400 if (val == 0x12) { 1401 s->vga.sr[s->vga.sr_index] = 0x12; 1402 } else { 1403 s->vga.sr[s->vga.sr_index] = 0x0f; 1404 } 1405 break; 1406 case 0x10: 1407 case 0x30: 1408 case 0x50: 1409 case 0x70: // Graphics Cursor X 1410 case 0x90: 1411 case 0xb0: 1412 case 0xd0: 1413 case 0xf0: // Graphics Cursor X 1414 s->vga.sr[0x10] = val; 1415 s->vga.hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5); 1416 break; 1417 case 0x11: 1418 case 0x31: 1419 case 0x51: 1420 case 0x71: // Graphics Cursor Y 1421 case 0x91: 1422 case 0xb1: 1423 case 0xd1: 1424 case 0xf1: // Graphics Cursor Y 1425 s->vga.sr[0x11] = val; 1426 s->vga.hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5); 1427 break; 1428 case 0x07: // Extended Sequencer Mode 1429 cirrus_update_memory_access(s); 1430 case 0x08: // EEPROM Control 1431 case 0x09: // Scratch Register 0 1432 case 0x0a: // Scratch Register 1 1433 case 0x0b: // VCLK 0 1434 case 0x0c: // VCLK 1 1435 case 0x0d: // VCLK 2 1436 case 0x0e: // VCLK 3 1437 case 0x0f: // DRAM Control 1438 case 0x13: // Graphics Cursor Pattern Address 1439 case 0x14: // Scratch Register 2 1440 case 0x15: // Scratch Register 3 1441 case 0x16: // Performance Tuning Register 1442 case 0x18: // Signature Generator Control 1443 case 0x19: // Signature Generator Result 1444 case 0x1a: // Signature Generator Result 1445 case 0x1b: // VCLK 0 Denominator & Post 1446 case 0x1c: // VCLK 1 Denominator & Post 1447 case 0x1d: // VCLK 2 Denominator & Post 1448 case 0x1e: // VCLK 3 Denominator & Post 1449 case 0x1f: // BIOS Write Enable and MCLK select 1450 s->vga.sr[s->vga.sr_index] = val; 1451 #ifdef DEBUG_CIRRUS 1452 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n", 1453 s->vga.sr_index, val); 1454 #endif 1455 break; 1456 case 0x12: // Graphics Cursor Attribute 1457 s->vga.sr[0x12] = val; 1458 s->vga.force_shadow = !!(val & CIRRUS_CURSOR_SHOW); 1459 #ifdef DEBUG_CIRRUS 1460 printf("cirrus: cursor ctl SR12=%02x (force shadow: %d)\n", 1461 val, s->vga.force_shadow); 1462 #endif 1463 break; 1464 case 0x17: // Configuration Readback and Extended Control 1465 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38) 1466 | (val & 0xc7); 1467 cirrus_update_memory_access(s); 1468 break; 1469 default: 1470 #ifdef DEBUG_CIRRUS 1471 printf("cirrus: outport sr_index %02x, sr_value %02x\n", 1472 s->vga.sr_index, val); 1473 #endif 1474 break; 1475 } 1476 } 1477 1478 /*************************************** 1479 * 1480 * I/O access at 0x3c6 1481 * 1482 ***************************************/ 1483 1484 static int cirrus_read_hidden_dac(CirrusVGAState * s) 1485 { 1486 if (++s->cirrus_hidden_dac_lockindex == 5) { 1487 s->cirrus_hidden_dac_lockindex = 0; 1488 return s->cirrus_hidden_dac_data; 1489 } 1490 return 0xff; 1491 } 1492 1493 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value) 1494 { 1495 if (s->cirrus_hidden_dac_lockindex == 4) { 1496 s->cirrus_hidden_dac_data = reg_value; 1497 #if defined(DEBUG_CIRRUS) 1498 printf("cirrus: outport hidden DAC, value %02x\n", reg_value); 1499 #endif 1500 } 1501 s->cirrus_hidden_dac_lockindex = 0; 1502 } 1503 1504 /*************************************** 1505 * 1506 * I/O access at 0x3c9 1507 * 1508 ***************************************/ 1509 1510 static int cirrus_vga_read_palette(CirrusVGAState * s) 1511 { 1512 int val; 1513 1514 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) { 1515 val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 + 1516 s->vga.dac_sub_index]; 1517 } else { 1518 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index]; 1519 } 1520 if (++s->vga.dac_sub_index == 3) { 1521 s->vga.dac_sub_index = 0; 1522 s->vga.dac_read_index++; 1523 } 1524 return val; 1525 } 1526 1527 static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value) 1528 { 1529 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value; 1530 if (++s->vga.dac_sub_index == 3) { 1531 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) { 1532 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3], 1533 s->vga.dac_cache, 3); 1534 } else { 1535 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3); 1536 } 1537 /* XXX update cursor */ 1538 s->vga.dac_sub_index = 0; 1539 s->vga.dac_write_index++; 1540 } 1541 } 1542 1543 /*************************************** 1544 * 1545 * I/O access between 0x3ce-0x3cf 1546 * 1547 ***************************************/ 1548 1549 static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index) 1550 { 1551 switch (reg_index) { 1552 case 0x00: // Standard VGA, BGCOLOR 0x000000ff 1553 return s->cirrus_shadow_gr0; 1554 case 0x01: // Standard VGA, FGCOLOR 0x000000ff 1555 return s->cirrus_shadow_gr1; 1556 case 0x02: // Standard VGA 1557 case 0x03: // Standard VGA 1558 case 0x04: // Standard VGA 1559 case 0x06: // Standard VGA 1560 case 0x07: // Standard VGA 1561 case 0x08: // Standard VGA 1562 return s->vga.gr[s->vga.gr_index]; 1563 case 0x05: // Standard VGA, Cirrus extended mode 1564 default: 1565 break; 1566 } 1567 1568 if (reg_index < 0x3a) { 1569 return s->vga.gr[reg_index]; 1570 } else { 1571 #ifdef DEBUG_CIRRUS 1572 printf("cirrus: inport gr_index %02x\n", reg_index); 1573 #endif 1574 return 0xff; 1575 } 1576 } 1577 1578 static void 1579 cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value) 1580 { 1581 #if defined(DEBUG_BITBLT) && 0 1582 printf("gr%02x: %02x\n", reg_index, reg_value); 1583 #endif 1584 switch (reg_index) { 1585 case 0x00: // Standard VGA, BGCOLOR 0x000000ff 1586 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index]; 1587 s->cirrus_shadow_gr0 = reg_value; 1588 break; 1589 case 0x01: // Standard VGA, FGCOLOR 0x000000ff 1590 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index]; 1591 s->cirrus_shadow_gr1 = reg_value; 1592 break; 1593 case 0x02: // Standard VGA 1594 case 0x03: // Standard VGA 1595 case 0x04: // Standard VGA 1596 case 0x06: // Standard VGA 1597 case 0x07: // Standard VGA 1598 case 0x08: // Standard VGA 1599 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index]; 1600 break; 1601 case 0x05: // Standard VGA, Cirrus extended mode 1602 s->vga.gr[reg_index] = reg_value & 0x7f; 1603 cirrus_update_memory_access(s); 1604 break; 1605 case 0x09: // bank offset #0 1606 case 0x0A: // bank offset #1 1607 s->vga.gr[reg_index] = reg_value; 1608 cirrus_update_bank_ptr(s, 0); 1609 cirrus_update_bank_ptr(s, 1); 1610 cirrus_update_memory_access(s); 1611 break; 1612 case 0x0B: 1613 s->vga.gr[reg_index] = reg_value; 1614 cirrus_update_bank_ptr(s, 0); 1615 cirrus_update_bank_ptr(s, 1); 1616 cirrus_update_memory_access(s); 1617 break; 1618 case 0x10: // BGCOLOR 0x0000ff00 1619 case 0x11: // FGCOLOR 0x0000ff00 1620 case 0x12: // BGCOLOR 0x00ff0000 1621 case 0x13: // FGCOLOR 0x00ff0000 1622 case 0x14: // BGCOLOR 0xff000000 1623 case 0x15: // FGCOLOR 0xff000000 1624 case 0x20: // BLT WIDTH 0x0000ff 1625 case 0x22: // BLT HEIGHT 0x0000ff 1626 case 0x24: // BLT DEST PITCH 0x0000ff 1627 case 0x26: // BLT SRC PITCH 0x0000ff 1628 case 0x28: // BLT DEST ADDR 0x0000ff 1629 case 0x29: // BLT DEST ADDR 0x00ff00 1630 case 0x2c: // BLT SRC ADDR 0x0000ff 1631 case 0x2d: // BLT SRC ADDR 0x00ff00 1632 case 0x2f: // BLT WRITEMASK 1633 case 0x30: // BLT MODE 1634 case 0x32: // RASTER OP 1635 case 0x33: // BLT MODEEXT 1636 case 0x34: // BLT TRANSPARENT COLOR 0x00ff 1637 case 0x35: // BLT TRANSPARENT COLOR 0xff00 1638 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff 1639 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00 1640 s->vga.gr[reg_index] = reg_value; 1641 break; 1642 case 0x21: // BLT WIDTH 0x001f00 1643 case 0x23: // BLT HEIGHT 0x001f00 1644 case 0x25: // BLT DEST PITCH 0x001f00 1645 case 0x27: // BLT SRC PITCH 0x001f00 1646 s->vga.gr[reg_index] = reg_value & 0x1f; 1647 break; 1648 case 0x2a: // BLT DEST ADDR 0x3f0000 1649 s->vga.gr[reg_index] = reg_value & 0x3f; 1650 /* if auto start mode, starts bit blt now */ 1651 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) { 1652 cirrus_bitblt_start(s); 1653 } 1654 break; 1655 case 0x2e: // BLT SRC ADDR 0x3f0000 1656 s->vga.gr[reg_index] = reg_value & 0x3f; 1657 break; 1658 case 0x31: // BLT STATUS/START 1659 cirrus_write_bitblt(s, reg_value); 1660 break; 1661 default: 1662 #ifdef DEBUG_CIRRUS 1663 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index, 1664 reg_value); 1665 #endif 1666 break; 1667 } 1668 } 1669 1670 /*************************************** 1671 * 1672 * I/O access between 0x3d4-0x3d5 1673 * 1674 ***************************************/ 1675 1676 static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index) 1677 { 1678 switch (reg_index) { 1679 case 0x00: // Standard VGA 1680 case 0x01: // Standard VGA 1681 case 0x02: // Standard VGA 1682 case 0x03: // Standard VGA 1683 case 0x04: // Standard VGA 1684 case 0x05: // Standard VGA 1685 case 0x06: // Standard VGA 1686 case 0x07: // Standard VGA 1687 case 0x08: // Standard VGA 1688 case 0x09: // Standard VGA 1689 case 0x0a: // Standard VGA 1690 case 0x0b: // Standard VGA 1691 case 0x0c: // Standard VGA 1692 case 0x0d: // Standard VGA 1693 case 0x0e: // Standard VGA 1694 case 0x0f: // Standard VGA 1695 case 0x10: // Standard VGA 1696 case 0x11: // Standard VGA 1697 case 0x12: // Standard VGA 1698 case 0x13: // Standard VGA 1699 case 0x14: // Standard VGA 1700 case 0x15: // Standard VGA 1701 case 0x16: // Standard VGA 1702 case 0x17: // Standard VGA 1703 case 0x18: // Standard VGA 1704 return s->vga.cr[s->vga.cr_index]; 1705 case 0x24: // Attribute Controller Toggle Readback (R) 1706 return (s->vga.ar_flip_flop << 7); 1707 case 0x19: // Interlace End 1708 case 0x1a: // Miscellaneous Control 1709 case 0x1b: // Extended Display Control 1710 case 0x1c: // Sync Adjust and Genlock 1711 case 0x1d: // Overlay Extended Control 1712 case 0x22: // Graphics Data Latches Readback (R) 1713 case 0x25: // Part Status 1714 case 0x27: // Part ID (R) 1715 return s->vga.cr[s->vga.cr_index]; 1716 case 0x26: // Attribute Controller Index Readback (R) 1717 return s->vga.ar_index & 0x3f; 1718 break; 1719 default: 1720 #ifdef DEBUG_CIRRUS 1721 printf("cirrus: inport cr_index %02x\n", reg_index); 1722 #endif 1723 return 0xff; 1724 } 1725 } 1726 1727 static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value) 1728 { 1729 switch (s->vga.cr_index) { 1730 case 0x00: // Standard VGA 1731 case 0x01: // Standard VGA 1732 case 0x02: // Standard VGA 1733 case 0x03: // Standard VGA 1734 case 0x04: // Standard VGA 1735 case 0x05: // Standard VGA 1736 case 0x06: // Standard VGA 1737 case 0x07: // Standard VGA 1738 case 0x08: // Standard VGA 1739 case 0x09: // Standard VGA 1740 case 0x0a: // Standard VGA 1741 case 0x0b: // Standard VGA 1742 case 0x0c: // Standard VGA 1743 case 0x0d: // Standard VGA 1744 case 0x0e: // Standard VGA 1745 case 0x0f: // Standard VGA 1746 case 0x10: // Standard VGA 1747 case 0x11: // Standard VGA 1748 case 0x12: // Standard VGA 1749 case 0x13: // Standard VGA 1750 case 0x14: // Standard VGA 1751 case 0x15: // Standard VGA 1752 case 0x16: // Standard VGA 1753 case 0x17: // Standard VGA 1754 case 0x18: // Standard VGA 1755 /* handle CR0-7 protection */ 1756 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) { 1757 /* can always write bit 4 of CR7 */ 1758 if (s->vga.cr_index == 7) 1759 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10); 1760 return; 1761 } 1762 s->vga.cr[s->vga.cr_index] = reg_value; 1763 switch(s->vga.cr_index) { 1764 case 0x00: 1765 case 0x04: 1766 case 0x05: 1767 case 0x06: 1768 case 0x07: 1769 case 0x11: 1770 case 0x17: 1771 s->vga.update_retrace_info(&s->vga); 1772 break; 1773 } 1774 break; 1775 case 0x19: // Interlace End 1776 case 0x1a: // Miscellaneous Control 1777 case 0x1b: // Extended Display Control 1778 case 0x1c: // Sync Adjust and Genlock 1779 case 0x1d: // Overlay Extended Control 1780 s->vga.cr[s->vga.cr_index] = reg_value; 1781 #ifdef DEBUG_CIRRUS 1782 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n", 1783 s->vga.cr_index, reg_value); 1784 #endif 1785 break; 1786 case 0x22: // Graphics Data Latches Readback (R) 1787 case 0x24: // Attribute Controller Toggle Readback (R) 1788 case 0x26: // Attribute Controller Index Readback (R) 1789 case 0x27: // Part ID (R) 1790 break; 1791 case 0x25: // Part Status 1792 default: 1793 #ifdef DEBUG_CIRRUS 1794 printf("cirrus: outport cr_index %02x, cr_value %02x\n", 1795 s->vga.cr_index, reg_value); 1796 #endif 1797 break; 1798 } 1799 } 1800 1801 /*************************************** 1802 * 1803 * memory-mapped I/O (bitblt) 1804 * 1805 ***************************************/ 1806 1807 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address) 1808 { 1809 int value = 0xff; 1810 1811 switch (address) { 1812 case (CIRRUS_MMIO_BLTBGCOLOR + 0): 1813 value = cirrus_vga_read_gr(s, 0x00); 1814 break; 1815 case (CIRRUS_MMIO_BLTBGCOLOR + 1): 1816 value = cirrus_vga_read_gr(s, 0x10); 1817 break; 1818 case (CIRRUS_MMIO_BLTBGCOLOR + 2): 1819 value = cirrus_vga_read_gr(s, 0x12); 1820 break; 1821 case (CIRRUS_MMIO_BLTBGCOLOR + 3): 1822 value = cirrus_vga_read_gr(s, 0x14); 1823 break; 1824 case (CIRRUS_MMIO_BLTFGCOLOR + 0): 1825 value = cirrus_vga_read_gr(s, 0x01); 1826 break; 1827 case (CIRRUS_MMIO_BLTFGCOLOR + 1): 1828 value = cirrus_vga_read_gr(s, 0x11); 1829 break; 1830 case (CIRRUS_MMIO_BLTFGCOLOR + 2): 1831 value = cirrus_vga_read_gr(s, 0x13); 1832 break; 1833 case (CIRRUS_MMIO_BLTFGCOLOR + 3): 1834 value = cirrus_vga_read_gr(s, 0x15); 1835 break; 1836 case (CIRRUS_MMIO_BLTWIDTH + 0): 1837 value = cirrus_vga_read_gr(s, 0x20); 1838 break; 1839 case (CIRRUS_MMIO_BLTWIDTH + 1): 1840 value = cirrus_vga_read_gr(s, 0x21); 1841 break; 1842 case (CIRRUS_MMIO_BLTHEIGHT + 0): 1843 value = cirrus_vga_read_gr(s, 0x22); 1844 break; 1845 case (CIRRUS_MMIO_BLTHEIGHT + 1): 1846 value = cirrus_vga_read_gr(s, 0x23); 1847 break; 1848 case (CIRRUS_MMIO_BLTDESTPITCH + 0): 1849 value = cirrus_vga_read_gr(s, 0x24); 1850 break; 1851 case (CIRRUS_MMIO_BLTDESTPITCH + 1): 1852 value = cirrus_vga_read_gr(s, 0x25); 1853 break; 1854 case (CIRRUS_MMIO_BLTSRCPITCH + 0): 1855 value = cirrus_vga_read_gr(s, 0x26); 1856 break; 1857 case (CIRRUS_MMIO_BLTSRCPITCH + 1): 1858 value = cirrus_vga_read_gr(s, 0x27); 1859 break; 1860 case (CIRRUS_MMIO_BLTDESTADDR + 0): 1861 value = cirrus_vga_read_gr(s, 0x28); 1862 break; 1863 case (CIRRUS_MMIO_BLTDESTADDR + 1): 1864 value = cirrus_vga_read_gr(s, 0x29); 1865 break; 1866 case (CIRRUS_MMIO_BLTDESTADDR + 2): 1867 value = cirrus_vga_read_gr(s, 0x2a); 1868 break; 1869 case (CIRRUS_MMIO_BLTSRCADDR + 0): 1870 value = cirrus_vga_read_gr(s, 0x2c); 1871 break; 1872 case (CIRRUS_MMIO_BLTSRCADDR + 1): 1873 value = cirrus_vga_read_gr(s, 0x2d); 1874 break; 1875 case (CIRRUS_MMIO_BLTSRCADDR + 2): 1876 value = cirrus_vga_read_gr(s, 0x2e); 1877 break; 1878 case CIRRUS_MMIO_BLTWRITEMASK: 1879 value = cirrus_vga_read_gr(s, 0x2f); 1880 break; 1881 case CIRRUS_MMIO_BLTMODE: 1882 value = cirrus_vga_read_gr(s, 0x30); 1883 break; 1884 case CIRRUS_MMIO_BLTROP: 1885 value = cirrus_vga_read_gr(s, 0x32); 1886 break; 1887 case CIRRUS_MMIO_BLTMODEEXT: 1888 value = cirrus_vga_read_gr(s, 0x33); 1889 break; 1890 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0): 1891 value = cirrus_vga_read_gr(s, 0x34); 1892 break; 1893 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1): 1894 value = cirrus_vga_read_gr(s, 0x35); 1895 break; 1896 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0): 1897 value = cirrus_vga_read_gr(s, 0x38); 1898 break; 1899 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1): 1900 value = cirrus_vga_read_gr(s, 0x39); 1901 break; 1902 case CIRRUS_MMIO_BLTSTATUS: 1903 value = cirrus_vga_read_gr(s, 0x31); 1904 break; 1905 default: 1906 #ifdef DEBUG_CIRRUS 1907 printf("cirrus: mmio read - address 0x%04x\n", address); 1908 #endif 1909 break; 1910 } 1911 1912 trace_vga_cirrus_write_blt(address, value); 1913 return (uint8_t) value; 1914 } 1915 1916 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address, 1917 uint8_t value) 1918 { 1919 trace_vga_cirrus_write_blt(address, value); 1920 switch (address) { 1921 case (CIRRUS_MMIO_BLTBGCOLOR + 0): 1922 cirrus_vga_write_gr(s, 0x00, value); 1923 break; 1924 case (CIRRUS_MMIO_BLTBGCOLOR + 1): 1925 cirrus_vga_write_gr(s, 0x10, value); 1926 break; 1927 case (CIRRUS_MMIO_BLTBGCOLOR + 2): 1928 cirrus_vga_write_gr(s, 0x12, value); 1929 break; 1930 case (CIRRUS_MMIO_BLTBGCOLOR + 3): 1931 cirrus_vga_write_gr(s, 0x14, value); 1932 break; 1933 case (CIRRUS_MMIO_BLTFGCOLOR + 0): 1934 cirrus_vga_write_gr(s, 0x01, value); 1935 break; 1936 case (CIRRUS_MMIO_BLTFGCOLOR + 1): 1937 cirrus_vga_write_gr(s, 0x11, value); 1938 break; 1939 case (CIRRUS_MMIO_BLTFGCOLOR + 2): 1940 cirrus_vga_write_gr(s, 0x13, value); 1941 break; 1942 case (CIRRUS_MMIO_BLTFGCOLOR + 3): 1943 cirrus_vga_write_gr(s, 0x15, value); 1944 break; 1945 case (CIRRUS_MMIO_BLTWIDTH + 0): 1946 cirrus_vga_write_gr(s, 0x20, value); 1947 break; 1948 case (CIRRUS_MMIO_BLTWIDTH + 1): 1949 cirrus_vga_write_gr(s, 0x21, value); 1950 break; 1951 case (CIRRUS_MMIO_BLTHEIGHT + 0): 1952 cirrus_vga_write_gr(s, 0x22, value); 1953 break; 1954 case (CIRRUS_MMIO_BLTHEIGHT + 1): 1955 cirrus_vga_write_gr(s, 0x23, value); 1956 break; 1957 case (CIRRUS_MMIO_BLTDESTPITCH + 0): 1958 cirrus_vga_write_gr(s, 0x24, value); 1959 break; 1960 case (CIRRUS_MMIO_BLTDESTPITCH + 1): 1961 cirrus_vga_write_gr(s, 0x25, value); 1962 break; 1963 case (CIRRUS_MMIO_BLTSRCPITCH + 0): 1964 cirrus_vga_write_gr(s, 0x26, value); 1965 break; 1966 case (CIRRUS_MMIO_BLTSRCPITCH + 1): 1967 cirrus_vga_write_gr(s, 0x27, value); 1968 break; 1969 case (CIRRUS_MMIO_BLTDESTADDR + 0): 1970 cirrus_vga_write_gr(s, 0x28, value); 1971 break; 1972 case (CIRRUS_MMIO_BLTDESTADDR + 1): 1973 cirrus_vga_write_gr(s, 0x29, value); 1974 break; 1975 case (CIRRUS_MMIO_BLTDESTADDR + 2): 1976 cirrus_vga_write_gr(s, 0x2a, value); 1977 break; 1978 case (CIRRUS_MMIO_BLTDESTADDR + 3): 1979 /* ignored */ 1980 break; 1981 case (CIRRUS_MMIO_BLTSRCADDR + 0): 1982 cirrus_vga_write_gr(s, 0x2c, value); 1983 break; 1984 case (CIRRUS_MMIO_BLTSRCADDR + 1): 1985 cirrus_vga_write_gr(s, 0x2d, value); 1986 break; 1987 case (CIRRUS_MMIO_BLTSRCADDR + 2): 1988 cirrus_vga_write_gr(s, 0x2e, value); 1989 break; 1990 case CIRRUS_MMIO_BLTWRITEMASK: 1991 cirrus_vga_write_gr(s, 0x2f, value); 1992 break; 1993 case CIRRUS_MMIO_BLTMODE: 1994 cirrus_vga_write_gr(s, 0x30, value); 1995 break; 1996 case CIRRUS_MMIO_BLTROP: 1997 cirrus_vga_write_gr(s, 0x32, value); 1998 break; 1999 case CIRRUS_MMIO_BLTMODEEXT: 2000 cirrus_vga_write_gr(s, 0x33, value); 2001 break; 2002 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0): 2003 cirrus_vga_write_gr(s, 0x34, value); 2004 break; 2005 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1): 2006 cirrus_vga_write_gr(s, 0x35, value); 2007 break; 2008 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0): 2009 cirrus_vga_write_gr(s, 0x38, value); 2010 break; 2011 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1): 2012 cirrus_vga_write_gr(s, 0x39, value); 2013 break; 2014 case CIRRUS_MMIO_BLTSTATUS: 2015 cirrus_vga_write_gr(s, 0x31, value); 2016 break; 2017 default: 2018 #ifdef DEBUG_CIRRUS 2019 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n", 2020 address, value); 2021 #endif 2022 break; 2023 } 2024 } 2025 2026 /*************************************** 2027 * 2028 * write mode 4/5 2029 * 2030 ***************************************/ 2031 2032 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s, 2033 unsigned mode, 2034 unsigned offset, 2035 uint32_t mem_value) 2036 { 2037 int x; 2038 unsigned val = mem_value; 2039 uint8_t *dst; 2040 2041 for (x = 0; x < 8; x++) { 2042 dst = s->vga.vram_ptr + ((offset + x) & s->cirrus_addr_mask); 2043 if (val & 0x80) { 2044 *dst = s->cirrus_shadow_gr1; 2045 } else if (mode == 5) { 2046 *dst = s->cirrus_shadow_gr0; 2047 } 2048 val <<= 1; 2049 } 2050 memory_region_set_dirty(&s->vga.vram, offset, 8); 2051 } 2052 2053 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s, 2054 unsigned mode, 2055 unsigned offset, 2056 uint32_t mem_value) 2057 { 2058 int x; 2059 unsigned val = mem_value; 2060 uint8_t *dst; 2061 2062 for (x = 0; x < 8; x++) { 2063 dst = s->vga.vram_ptr + ((offset + 2 * x) & s->cirrus_addr_mask & ~1); 2064 if (val & 0x80) { 2065 *dst = s->cirrus_shadow_gr1; 2066 *(dst + 1) = s->vga.gr[0x11]; 2067 } else if (mode == 5) { 2068 *dst = s->cirrus_shadow_gr0; 2069 *(dst + 1) = s->vga.gr[0x10]; 2070 } 2071 val <<= 1; 2072 } 2073 memory_region_set_dirty(&s->vga.vram, offset, 16); 2074 } 2075 2076 /*************************************** 2077 * 2078 * memory access between 0xa0000-0xbffff 2079 * 2080 ***************************************/ 2081 2082 static uint64_t cirrus_vga_mem_read(void *opaque, 2083 hwaddr addr, 2084 uint32_t size) 2085 { 2086 CirrusVGAState *s = opaque; 2087 unsigned bank_index; 2088 unsigned bank_offset; 2089 uint32_t val; 2090 2091 if ((s->vga.sr[0x07] & 0x01) == 0) { 2092 return vga_mem_readb(&s->vga, addr); 2093 } 2094 2095 if (addr < 0x10000) { 2096 /* XXX handle bitblt */ 2097 /* video memory */ 2098 bank_index = addr >> 15; 2099 bank_offset = addr & 0x7fff; 2100 if (bank_offset < s->cirrus_bank_limit[bank_index]) { 2101 bank_offset += s->cirrus_bank_base[bank_index]; 2102 if ((s->vga.gr[0x0B] & 0x14) == 0x14) { 2103 bank_offset <<= 4; 2104 } else if (s->vga.gr[0x0B] & 0x02) { 2105 bank_offset <<= 3; 2106 } 2107 bank_offset &= s->cirrus_addr_mask; 2108 val = *(s->vga.vram_ptr + bank_offset); 2109 } else 2110 val = 0xff; 2111 } else if (addr >= 0x18000 && addr < 0x18100) { 2112 /* memory-mapped I/O */ 2113 val = 0xff; 2114 if ((s->vga.sr[0x17] & 0x44) == 0x04) { 2115 val = cirrus_mmio_blt_read(s, addr & 0xff); 2116 } 2117 } else { 2118 val = 0xff; 2119 #ifdef DEBUG_CIRRUS 2120 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr); 2121 #endif 2122 } 2123 return val; 2124 } 2125 2126 static void cirrus_vga_mem_write(void *opaque, 2127 hwaddr addr, 2128 uint64_t mem_value, 2129 uint32_t size) 2130 { 2131 CirrusVGAState *s = opaque; 2132 unsigned bank_index; 2133 unsigned bank_offset; 2134 unsigned mode; 2135 2136 if ((s->vga.sr[0x07] & 0x01) == 0) { 2137 vga_mem_writeb(&s->vga, addr, mem_value); 2138 return; 2139 } 2140 2141 if (addr < 0x10000) { 2142 if (s->cirrus_srcptr != s->cirrus_srcptr_end) { 2143 /* bitblt */ 2144 *s->cirrus_srcptr++ = (uint8_t) mem_value; 2145 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) { 2146 cirrus_bitblt_cputovideo_next(s); 2147 } 2148 } else { 2149 /* video memory */ 2150 bank_index = addr >> 15; 2151 bank_offset = addr & 0x7fff; 2152 if (bank_offset < s->cirrus_bank_limit[bank_index]) { 2153 bank_offset += s->cirrus_bank_base[bank_index]; 2154 if ((s->vga.gr[0x0B] & 0x14) == 0x14) { 2155 bank_offset <<= 4; 2156 } else if (s->vga.gr[0x0B] & 0x02) { 2157 bank_offset <<= 3; 2158 } 2159 bank_offset &= s->cirrus_addr_mask; 2160 mode = s->vga.gr[0x05] & 0x7; 2161 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) { 2162 *(s->vga.vram_ptr + bank_offset) = mem_value; 2163 memory_region_set_dirty(&s->vga.vram, bank_offset, 2164 sizeof(mem_value)); 2165 } else { 2166 if ((s->vga.gr[0x0B] & 0x14) != 0x14) { 2167 cirrus_mem_writeb_mode4and5_8bpp(s, mode, 2168 bank_offset, 2169 mem_value); 2170 } else { 2171 cirrus_mem_writeb_mode4and5_16bpp(s, mode, 2172 bank_offset, 2173 mem_value); 2174 } 2175 } 2176 } 2177 } 2178 } else if (addr >= 0x18000 && addr < 0x18100) { 2179 /* memory-mapped I/O */ 2180 if ((s->vga.sr[0x17] & 0x44) == 0x04) { 2181 cirrus_mmio_blt_write(s, addr & 0xff, mem_value); 2182 } 2183 } else { 2184 #ifdef DEBUG_CIRRUS 2185 printf("cirrus: mem_writeb " TARGET_FMT_plx " value 0x%02" PRIu64 "\n", addr, 2186 mem_value); 2187 #endif 2188 } 2189 } 2190 2191 static const MemoryRegionOps cirrus_vga_mem_ops = { 2192 .read = cirrus_vga_mem_read, 2193 .write = cirrus_vga_mem_write, 2194 .endianness = DEVICE_LITTLE_ENDIAN, 2195 .impl = { 2196 .min_access_size = 1, 2197 .max_access_size = 1, 2198 }, 2199 }; 2200 2201 /*************************************** 2202 * 2203 * hardware cursor 2204 * 2205 ***************************************/ 2206 2207 static inline void invalidate_cursor1(CirrusVGAState *s) 2208 { 2209 if (s->last_hw_cursor_size) { 2210 vga_invalidate_scanlines(&s->vga, 2211 s->last_hw_cursor_y + s->last_hw_cursor_y_start, 2212 s->last_hw_cursor_y + s->last_hw_cursor_y_end); 2213 } 2214 } 2215 2216 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s) 2217 { 2218 const uint8_t *src; 2219 uint32_t content; 2220 int y, y_min, y_max; 2221 2222 src = s->vga.vram_ptr + s->real_vram_size - 16 * KiB; 2223 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) { 2224 src += (s->vga.sr[0x13] & 0x3c) * 256; 2225 y_min = 64; 2226 y_max = -1; 2227 for(y = 0; y < 64; y++) { 2228 content = ((uint32_t *)src)[0] | 2229 ((uint32_t *)src)[1] | 2230 ((uint32_t *)src)[2] | 2231 ((uint32_t *)src)[3]; 2232 if (content) { 2233 if (y < y_min) 2234 y_min = y; 2235 if (y > y_max) 2236 y_max = y; 2237 } 2238 src += 16; 2239 } 2240 } else { 2241 src += (s->vga.sr[0x13] & 0x3f) * 256; 2242 y_min = 32; 2243 y_max = -1; 2244 for(y = 0; y < 32; y++) { 2245 content = ((uint32_t *)src)[0] | 2246 ((uint32_t *)(src + 128))[0]; 2247 if (content) { 2248 if (y < y_min) 2249 y_min = y; 2250 if (y > y_max) 2251 y_max = y; 2252 } 2253 src += 4; 2254 } 2255 } 2256 if (y_min > y_max) { 2257 s->last_hw_cursor_y_start = 0; 2258 s->last_hw_cursor_y_end = 0; 2259 } else { 2260 s->last_hw_cursor_y_start = y_min; 2261 s->last_hw_cursor_y_end = y_max + 1; 2262 } 2263 } 2264 2265 /* NOTE: we do not currently handle the cursor bitmap change, so we 2266 update the cursor only if it moves. */ 2267 static void cirrus_cursor_invalidate(VGACommonState *s1) 2268 { 2269 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga); 2270 int size; 2271 2272 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) { 2273 size = 0; 2274 } else { 2275 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) 2276 size = 64; 2277 else 2278 size = 32; 2279 } 2280 /* invalidate last cursor and new cursor if any change */ 2281 if (s->last_hw_cursor_size != size || 2282 s->last_hw_cursor_x != s->vga.hw_cursor_x || 2283 s->last_hw_cursor_y != s->vga.hw_cursor_y) { 2284 2285 invalidate_cursor1(s); 2286 2287 s->last_hw_cursor_size = size; 2288 s->last_hw_cursor_x = s->vga.hw_cursor_x; 2289 s->last_hw_cursor_y = s->vga.hw_cursor_y; 2290 /* compute the real cursor min and max y */ 2291 cirrus_cursor_compute_yrange(s); 2292 invalidate_cursor1(s); 2293 } 2294 } 2295 2296 static void vga_draw_cursor_line(uint8_t *d1, 2297 const uint8_t *src1, 2298 int poffset, int w, 2299 unsigned int color0, 2300 unsigned int color1, 2301 unsigned int color_xor) 2302 { 2303 const uint8_t *plane0, *plane1; 2304 int x, b0, b1; 2305 uint8_t *d; 2306 2307 d = d1; 2308 plane0 = src1; 2309 plane1 = src1 + poffset; 2310 for (x = 0; x < w; x++) { 2311 b0 = (plane0[x >> 3] >> (7 - (x & 7))) & 1; 2312 b1 = (plane1[x >> 3] >> (7 - (x & 7))) & 1; 2313 switch (b0 | (b1 << 1)) { 2314 case 0: 2315 break; 2316 case 1: 2317 ((uint32_t *)d)[0] ^= color_xor; 2318 break; 2319 case 2: 2320 ((uint32_t *)d)[0] = color0; 2321 break; 2322 case 3: 2323 ((uint32_t *)d)[0] = color1; 2324 break; 2325 } 2326 d += 4; 2327 } 2328 } 2329 2330 static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y) 2331 { 2332 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga); 2333 int w, h, x1, x2, poffset; 2334 unsigned int color0, color1; 2335 const uint8_t *palette, *src; 2336 uint32_t content; 2337 2338 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) 2339 return; 2340 /* fast test to see if the cursor intersects with the scan line */ 2341 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) { 2342 h = 64; 2343 } else { 2344 h = 32; 2345 } 2346 if (scr_y < s->vga.hw_cursor_y || 2347 scr_y >= (s->vga.hw_cursor_y + h)) { 2348 return; 2349 } 2350 2351 src = s->vga.vram_ptr + s->real_vram_size - 16 * KiB; 2352 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) { 2353 src += (s->vga.sr[0x13] & 0x3c) * 256; 2354 src += (scr_y - s->vga.hw_cursor_y) * 16; 2355 poffset = 8; 2356 content = ((uint32_t *)src)[0] | 2357 ((uint32_t *)src)[1] | 2358 ((uint32_t *)src)[2] | 2359 ((uint32_t *)src)[3]; 2360 } else { 2361 src += (s->vga.sr[0x13] & 0x3f) * 256; 2362 src += (scr_y - s->vga.hw_cursor_y) * 4; 2363 2364 2365 poffset = 128; 2366 content = ((uint32_t *)src)[0] | 2367 ((uint32_t *)(src + 128))[0]; 2368 } 2369 /* if nothing to draw, no need to continue */ 2370 if (!content) 2371 return; 2372 w = h; 2373 2374 x1 = s->vga.hw_cursor_x; 2375 if (x1 >= s->vga.last_scr_width) 2376 return; 2377 x2 = s->vga.hw_cursor_x + w; 2378 if (x2 > s->vga.last_scr_width) 2379 x2 = s->vga.last_scr_width; 2380 w = x2 - x1; 2381 palette = s->cirrus_hidden_palette; 2382 color0 = rgb_to_pixel32(c6_to_8(palette[0x0 * 3]), 2383 c6_to_8(palette[0x0 * 3 + 1]), 2384 c6_to_8(palette[0x0 * 3 + 2])); 2385 color1 = rgb_to_pixel32(c6_to_8(palette[0xf * 3]), 2386 c6_to_8(palette[0xf * 3 + 1]), 2387 c6_to_8(palette[0xf * 3 + 2])); 2388 d1 += x1 * 4; 2389 vga_draw_cursor_line(d1, src, poffset, w, color0, color1, 0xffffff); 2390 } 2391 2392 /*************************************** 2393 * 2394 * LFB memory access 2395 * 2396 ***************************************/ 2397 2398 static uint64_t cirrus_linear_read(void *opaque, hwaddr addr, 2399 unsigned size) 2400 { 2401 CirrusVGAState *s = opaque; 2402 uint32_t ret; 2403 2404 addr &= s->cirrus_addr_mask; 2405 2406 if (((s->vga.sr[0x17] & 0x44) == 0x44) && 2407 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) { 2408 /* memory-mapped I/O */ 2409 ret = cirrus_mmio_blt_read(s, addr & 0xff); 2410 } else if (0) { 2411 /* XXX handle bitblt */ 2412 ret = 0xff; 2413 } else { 2414 /* video memory */ 2415 if ((s->vga.gr[0x0B] & 0x14) == 0x14) { 2416 addr <<= 4; 2417 } else if (s->vga.gr[0x0B] & 0x02) { 2418 addr <<= 3; 2419 } 2420 addr &= s->cirrus_addr_mask; 2421 ret = *(s->vga.vram_ptr + addr); 2422 } 2423 2424 return ret; 2425 } 2426 2427 static void cirrus_linear_write(void *opaque, hwaddr addr, 2428 uint64_t val, unsigned size) 2429 { 2430 CirrusVGAState *s = opaque; 2431 unsigned mode; 2432 2433 addr &= s->cirrus_addr_mask; 2434 2435 if (((s->vga.sr[0x17] & 0x44) == 0x44) && 2436 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) { 2437 /* memory-mapped I/O */ 2438 cirrus_mmio_blt_write(s, addr & 0xff, val); 2439 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) { 2440 /* bitblt */ 2441 *s->cirrus_srcptr++ = (uint8_t) val; 2442 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) { 2443 cirrus_bitblt_cputovideo_next(s); 2444 } 2445 } else { 2446 /* video memory */ 2447 if ((s->vga.gr[0x0B] & 0x14) == 0x14) { 2448 addr <<= 4; 2449 } else if (s->vga.gr[0x0B] & 0x02) { 2450 addr <<= 3; 2451 } 2452 addr &= s->cirrus_addr_mask; 2453 2454 mode = s->vga.gr[0x05] & 0x7; 2455 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) { 2456 *(s->vga.vram_ptr + addr) = (uint8_t) val; 2457 memory_region_set_dirty(&s->vga.vram, addr, 1); 2458 } else { 2459 if ((s->vga.gr[0x0B] & 0x14) != 0x14) { 2460 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val); 2461 } else { 2462 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val); 2463 } 2464 } 2465 } 2466 } 2467 2468 /*************************************** 2469 * 2470 * system to screen memory access 2471 * 2472 ***************************************/ 2473 2474 2475 static uint64_t cirrus_linear_bitblt_read(void *opaque, 2476 hwaddr addr, 2477 unsigned size) 2478 { 2479 CirrusVGAState *s = opaque; 2480 uint32_t ret; 2481 2482 /* XXX handle bitblt */ 2483 (void)s; 2484 ret = 0xff; 2485 return ret; 2486 } 2487 2488 static void cirrus_linear_bitblt_write(void *opaque, 2489 hwaddr addr, 2490 uint64_t val, 2491 unsigned size) 2492 { 2493 CirrusVGAState *s = opaque; 2494 2495 if (s->cirrus_srcptr != s->cirrus_srcptr_end) { 2496 /* bitblt */ 2497 *s->cirrus_srcptr++ = (uint8_t) val; 2498 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) { 2499 cirrus_bitblt_cputovideo_next(s); 2500 } 2501 } 2502 } 2503 2504 static const MemoryRegionOps cirrus_linear_bitblt_io_ops = { 2505 .read = cirrus_linear_bitblt_read, 2506 .write = cirrus_linear_bitblt_write, 2507 .endianness = DEVICE_LITTLE_ENDIAN, 2508 .impl = { 2509 .min_access_size = 1, 2510 .max_access_size = 1, 2511 }, 2512 }; 2513 2514 static void map_linear_vram_bank(CirrusVGAState *s, unsigned bank) 2515 { 2516 MemoryRegion *mr = &s->cirrus_bank[bank]; 2517 bool enabled = !(s->cirrus_srcptr != s->cirrus_srcptr_end) 2518 && !((s->vga.sr[0x07] & 0x01) == 0) 2519 && !((s->vga.gr[0x0B] & 0x14) == 0x14) 2520 && !(s->vga.gr[0x0B] & 0x02); 2521 2522 memory_region_set_enabled(mr, enabled); 2523 memory_region_set_alias_offset(mr, s->cirrus_bank_base[bank]); 2524 } 2525 2526 static void map_linear_vram(CirrusVGAState *s) 2527 { 2528 if (s->bustype == CIRRUS_BUSTYPE_PCI && !s->linear_vram) { 2529 s->linear_vram = true; 2530 memory_region_add_subregion_overlap(&s->pci_bar, 0, &s->vga.vram, 1); 2531 } 2532 map_linear_vram_bank(s, 0); 2533 map_linear_vram_bank(s, 1); 2534 } 2535 2536 static void unmap_linear_vram(CirrusVGAState *s) 2537 { 2538 if (s->bustype == CIRRUS_BUSTYPE_PCI && s->linear_vram) { 2539 s->linear_vram = false; 2540 memory_region_del_subregion(&s->pci_bar, &s->vga.vram); 2541 } 2542 memory_region_set_enabled(&s->cirrus_bank[0], false); 2543 memory_region_set_enabled(&s->cirrus_bank[1], false); 2544 } 2545 2546 /* Compute the memory access functions */ 2547 static void cirrus_update_memory_access(CirrusVGAState *s) 2548 { 2549 unsigned mode; 2550 2551 memory_region_transaction_begin(); 2552 if ((s->vga.sr[0x17] & 0x44) == 0x44) { 2553 goto generic_io; 2554 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) { 2555 goto generic_io; 2556 } else { 2557 if ((s->vga.gr[0x0B] & 0x14) == 0x14) { 2558 goto generic_io; 2559 } else if (s->vga.gr[0x0B] & 0x02) { 2560 goto generic_io; 2561 } 2562 2563 mode = s->vga.gr[0x05] & 0x7; 2564 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) { 2565 map_linear_vram(s); 2566 } else { 2567 generic_io: 2568 unmap_linear_vram(s); 2569 } 2570 } 2571 memory_region_transaction_commit(); 2572 } 2573 2574 2575 /* I/O ports */ 2576 2577 static uint64_t cirrus_vga_ioport_read(void *opaque, hwaddr addr, 2578 unsigned size) 2579 { 2580 CirrusVGAState *c = opaque; 2581 VGACommonState *s = &c->vga; 2582 int val, index; 2583 2584 addr += 0x3b0; 2585 2586 if (vga_ioport_invalid(s, addr)) { 2587 val = 0xff; 2588 } else { 2589 switch (addr) { 2590 case 0x3c0: 2591 if (s->ar_flip_flop == 0) { 2592 val = s->ar_index; 2593 } else { 2594 val = 0; 2595 } 2596 break; 2597 case 0x3c1: 2598 index = s->ar_index & 0x1f; 2599 if (index < 21) 2600 val = s->ar[index]; 2601 else 2602 val = 0; 2603 break; 2604 case 0x3c2: 2605 val = s->st00; 2606 break; 2607 case 0x3c4: 2608 val = s->sr_index; 2609 break; 2610 case 0x3c5: 2611 val = cirrus_vga_read_sr(c); 2612 break; 2613 #ifdef DEBUG_VGA_REG 2614 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val); 2615 #endif 2616 break; 2617 case 0x3c6: 2618 val = cirrus_read_hidden_dac(c); 2619 break; 2620 case 0x3c7: 2621 val = s->dac_state; 2622 break; 2623 case 0x3c8: 2624 val = s->dac_write_index; 2625 c->cirrus_hidden_dac_lockindex = 0; 2626 break; 2627 case 0x3c9: 2628 val = cirrus_vga_read_palette(c); 2629 break; 2630 case 0x3ca: 2631 val = s->fcr; 2632 break; 2633 case 0x3cc: 2634 val = s->msr; 2635 break; 2636 case 0x3ce: 2637 val = s->gr_index; 2638 break; 2639 case 0x3cf: 2640 val = cirrus_vga_read_gr(c, s->gr_index); 2641 #ifdef DEBUG_VGA_REG 2642 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val); 2643 #endif 2644 break; 2645 case 0x3b4: 2646 case 0x3d4: 2647 val = s->cr_index; 2648 break; 2649 case 0x3b5: 2650 case 0x3d5: 2651 val = cirrus_vga_read_cr(c, s->cr_index); 2652 #ifdef DEBUG_VGA_REG 2653 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val); 2654 #endif 2655 break; 2656 case 0x3ba: 2657 case 0x3da: 2658 /* just toggle to fool polling */ 2659 val = s->st01 = s->retrace(s); 2660 s->ar_flip_flop = 0; 2661 break; 2662 default: 2663 val = 0x00; 2664 break; 2665 } 2666 } 2667 trace_vga_cirrus_read_io(addr, val); 2668 return val; 2669 } 2670 2671 static void cirrus_vga_ioport_write(void *opaque, hwaddr addr, uint64_t val, 2672 unsigned size) 2673 { 2674 CirrusVGAState *c = opaque; 2675 VGACommonState *s = &c->vga; 2676 int index; 2677 2678 addr += 0x3b0; 2679 2680 /* check port range access depending on color/monochrome mode */ 2681 if (vga_ioport_invalid(s, addr)) { 2682 return; 2683 } 2684 trace_vga_cirrus_write_io(addr, val); 2685 2686 switch (addr) { 2687 case 0x3c0: 2688 if (s->ar_flip_flop == 0) { 2689 val &= 0x3f; 2690 s->ar_index = val; 2691 } else { 2692 index = s->ar_index & 0x1f; 2693 switch (index) { 2694 case 0x00 ... 0x0f: 2695 s->ar[index] = val & 0x3f; 2696 break; 2697 case 0x10: 2698 s->ar[index] = val & ~0x10; 2699 break; 2700 case 0x11: 2701 s->ar[index] = val; 2702 break; 2703 case 0x12: 2704 s->ar[index] = val & ~0xc0; 2705 break; 2706 case 0x13: 2707 s->ar[index] = val & ~0xf0; 2708 break; 2709 case 0x14: 2710 s->ar[index] = val & ~0xf0; 2711 break; 2712 default: 2713 break; 2714 } 2715 } 2716 s->ar_flip_flop ^= 1; 2717 break; 2718 case 0x3c2: 2719 s->msr = val & ~0x10; 2720 s->update_retrace_info(s); 2721 break; 2722 case 0x3c4: 2723 s->sr_index = val; 2724 break; 2725 case 0x3c5: 2726 #ifdef DEBUG_VGA_REG 2727 printf("vga: write SR%x = 0x%02" PRIu64 "\n", s->sr_index, val); 2728 #endif 2729 cirrus_vga_write_sr(c, val); 2730 break; 2731 case 0x3c6: 2732 cirrus_write_hidden_dac(c, val); 2733 break; 2734 case 0x3c7: 2735 s->dac_read_index = val; 2736 s->dac_sub_index = 0; 2737 s->dac_state = 3; 2738 break; 2739 case 0x3c8: 2740 s->dac_write_index = val; 2741 s->dac_sub_index = 0; 2742 s->dac_state = 0; 2743 break; 2744 case 0x3c9: 2745 cirrus_vga_write_palette(c, val); 2746 break; 2747 case 0x3ce: 2748 s->gr_index = val; 2749 break; 2750 case 0x3cf: 2751 #ifdef DEBUG_VGA_REG 2752 printf("vga: write GR%x = 0x%02" PRIu64 "\n", s->gr_index, val); 2753 #endif 2754 cirrus_vga_write_gr(c, s->gr_index, val); 2755 break; 2756 case 0x3b4: 2757 case 0x3d4: 2758 s->cr_index = val; 2759 break; 2760 case 0x3b5: 2761 case 0x3d5: 2762 #ifdef DEBUG_VGA_REG 2763 printf("vga: write CR%x = 0x%02"PRIu64"\n", s->cr_index, val); 2764 #endif 2765 cirrus_vga_write_cr(c, val); 2766 break; 2767 case 0x3ba: 2768 case 0x3da: 2769 s->fcr = val & 0x10; 2770 break; 2771 } 2772 } 2773 2774 /*************************************** 2775 * 2776 * memory-mapped I/O access 2777 * 2778 ***************************************/ 2779 2780 static uint64_t cirrus_mmio_read(void *opaque, hwaddr addr, 2781 unsigned size) 2782 { 2783 CirrusVGAState *s = opaque; 2784 2785 if (addr >= 0x100) { 2786 return cirrus_mmio_blt_read(s, addr - 0x100); 2787 } else { 2788 return cirrus_vga_ioport_read(s, addr + 0x10, size); 2789 } 2790 } 2791 2792 static void cirrus_mmio_write(void *opaque, hwaddr addr, 2793 uint64_t val, unsigned size) 2794 { 2795 CirrusVGAState *s = opaque; 2796 2797 if (addr >= 0x100) { 2798 cirrus_mmio_blt_write(s, addr - 0x100, val); 2799 } else { 2800 cirrus_vga_ioport_write(s, addr + 0x10, val, size); 2801 } 2802 } 2803 2804 static const MemoryRegionOps cirrus_mmio_io_ops = { 2805 .read = cirrus_mmio_read, 2806 .write = cirrus_mmio_write, 2807 .endianness = DEVICE_LITTLE_ENDIAN, 2808 .impl = { 2809 .min_access_size = 1, 2810 .max_access_size = 1, 2811 }, 2812 }; 2813 2814 /* load/save state */ 2815 2816 static int cirrus_post_load(void *opaque, int version_id) 2817 { 2818 CirrusVGAState *s = opaque; 2819 2820 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f; 2821 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f; 2822 2823 cirrus_update_memory_access(s); 2824 /* force refresh */ 2825 s->vga.graphic_mode = -1; 2826 cirrus_update_bank_ptr(s, 0); 2827 cirrus_update_bank_ptr(s, 1); 2828 return 0; 2829 } 2830 2831 static const VMStateDescription vmstate_cirrus_vga = { 2832 .name = "cirrus_vga", 2833 .version_id = 2, 2834 .minimum_version_id = 1, 2835 .post_load = cirrus_post_load, 2836 .fields = (VMStateField[]) { 2837 VMSTATE_UINT32(vga.latch, CirrusVGAState), 2838 VMSTATE_UINT8(vga.sr_index, CirrusVGAState), 2839 VMSTATE_BUFFER(vga.sr, CirrusVGAState), 2840 VMSTATE_UINT8(vga.gr_index, CirrusVGAState), 2841 VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState), 2842 VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState), 2843 VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2), 2844 VMSTATE_UINT8(vga.ar_index, CirrusVGAState), 2845 VMSTATE_BUFFER(vga.ar, CirrusVGAState), 2846 VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState), 2847 VMSTATE_UINT8(vga.cr_index, CirrusVGAState), 2848 VMSTATE_BUFFER(vga.cr, CirrusVGAState), 2849 VMSTATE_UINT8(vga.msr, CirrusVGAState), 2850 VMSTATE_UINT8(vga.fcr, CirrusVGAState), 2851 VMSTATE_UINT8(vga.st00, CirrusVGAState), 2852 VMSTATE_UINT8(vga.st01, CirrusVGAState), 2853 VMSTATE_UINT8(vga.dac_state, CirrusVGAState), 2854 VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState), 2855 VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState), 2856 VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState), 2857 VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState), 2858 VMSTATE_BUFFER(vga.palette, CirrusVGAState), 2859 VMSTATE_INT32(vga.bank_offset, CirrusVGAState), 2860 VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState), 2861 VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState), 2862 VMSTATE_UINT32(vga.hw_cursor_x, CirrusVGAState), 2863 VMSTATE_UINT32(vga.hw_cursor_y, CirrusVGAState), 2864 /* XXX: we do not save the bitblt state - we assume we do not save 2865 the state when the blitter is active */ 2866 VMSTATE_END_OF_LIST() 2867 } 2868 }; 2869 2870 static const VMStateDescription vmstate_pci_cirrus_vga = { 2871 .name = "cirrus_vga", 2872 .version_id = 2, 2873 .minimum_version_id = 2, 2874 .fields = (VMStateField[]) { 2875 VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState), 2876 VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0, 2877 vmstate_cirrus_vga, CirrusVGAState), 2878 VMSTATE_END_OF_LIST() 2879 } 2880 }; 2881 2882 /*************************************** 2883 * 2884 * initialize 2885 * 2886 ***************************************/ 2887 2888 static void cirrus_reset(void *opaque) 2889 { 2890 CirrusVGAState *s = opaque; 2891 2892 vga_common_reset(&s->vga); 2893 unmap_linear_vram(s); 2894 s->vga.sr[0x06] = 0x0f; 2895 if (s->device_id == CIRRUS_ID_CLGD5446) { 2896 /* 4MB 64 bit memory config, always PCI */ 2897 s->vga.sr[0x1F] = 0x2d; // MemClock 2898 s->vga.gr[0x18] = 0x0f; // fastest memory configuration 2899 s->vga.sr[0x0f] = 0x98; 2900 s->vga.sr[0x17] = 0x20; 2901 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */ 2902 } else { 2903 s->vga.sr[0x1F] = 0x22; // MemClock 2904 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M; 2905 s->vga.sr[0x17] = s->bustype; 2906 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */ 2907 } 2908 s->vga.cr[0x27] = s->device_id; 2909 2910 s->cirrus_hidden_dac_lockindex = 5; 2911 s->cirrus_hidden_dac_data = 0; 2912 } 2913 2914 static const MemoryRegionOps cirrus_linear_io_ops = { 2915 .read = cirrus_linear_read, 2916 .write = cirrus_linear_write, 2917 .endianness = DEVICE_LITTLE_ENDIAN, 2918 .impl = { 2919 .min_access_size = 1, 2920 .max_access_size = 1, 2921 }, 2922 }; 2923 2924 static const MemoryRegionOps cirrus_vga_io_ops = { 2925 .read = cirrus_vga_ioport_read, 2926 .write = cirrus_vga_ioport_write, 2927 .endianness = DEVICE_LITTLE_ENDIAN, 2928 .impl = { 2929 .min_access_size = 1, 2930 .max_access_size = 1, 2931 }, 2932 }; 2933 2934 static void cirrus_init_common(CirrusVGAState *s, Object *owner, 2935 int device_id, int is_pci, 2936 MemoryRegion *system_memory, 2937 MemoryRegion *system_io) 2938 { 2939 int i; 2940 static int inited; 2941 2942 if (!inited) { 2943 inited = 1; 2944 for(i = 0;i < 256; i++) 2945 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */ 2946 rop_to_index[CIRRUS_ROP_0] = 0; 2947 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1; 2948 rop_to_index[CIRRUS_ROP_NOP] = 2; 2949 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3; 2950 rop_to_index[CIRRUS_ROP_NOTDST] = 4; 2951 rop_to_index[CIRRUS_ROP_SRC] = 5; 2952 rop_to_index[CIRRUS_ROP_1] = 6; 2953 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7; 2954 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8; 2955 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9; 2956 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10; 2957 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11; 2958 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12; 2959 rop_to_index[CIRRUS_ROP_NOTSRC] = 13; 2960 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14; 2961 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15; 2962 s->device_id = device_id; 2963 if (is_pci) 2964 s->bustype = CIRRUS_BUSTYPE_PCI; 2965 else 2966 s->bustype = CIRRUS_BUSTYPE_ISA; 2967 } 2968 2969 /* Register ioport 0x3b0 - 0x3df */ 2970 memory_region_init_io(&s->cirrus_vga_io, owner, &cirrus_vga_io_ops, s, 2971 "cirrus-io", 0x30); 2972 memory_region_set_flush_coalesced(&s->cirrus_vga_io); 2973 memory_region_add_subregion(system_io, 0x3b0, &s->cirrus_vga_io); 2974 2975 memory_region_init(&s->low_mem_container, owner, 2976 "cirrus-lowmem-container", 2977 0x20000); 2978 2979 memory_region_init_io(&s->low_mem, owner, &cirrus_vga_mem_ops, s, 2980 "cirrus-low-memory", 0x20000); 2981 memory_region_add_subregion(&s->low_mem_container, 0, &s->low_mem); 2982 for (i = 0; i < 2; ++i) { 2983 static const char *names[] = { "vga.bank0", "vga.bank1" }; 2984 MemoryRegion *bank = &s->cirrus_bank[i]; 2985 memory_region_init_alias(bank, owner, names[i], &s->vga.vram, 2986 0, 0x8000); 2987 memory_region_set_enabled(bank, false); 2988 memory_region_add_subregion_overlap(&s->low_mem_container, i * 0x8000, 2989 bank, 1); 2990 } 2991 memory_region_add_subregion_overlap(system_memory, 2992 0x000a0000, 2993 &s->low_mem_container, 2994 1); 2995 memory_region_set_coalescing(&s->low_mem); 2996 2997 /* I/O handler for LFB */ 2998 memory_region_init_io(&s->cirrus_linear_io, owner, &cirrus_linear_io_ops, s, 2999 "cirrus-linear-io", s->vga.vram_size_mb * MiB); 3000 memory_region_set_flush_coalesced(&s->cirrus_linear_io); 3001 3002 /* I/O handler for LFB */ 3003 memory_region_init_io(&s->cirrus_linear_bitblt_io, owner, 3004 &cirrus_linear_bitblt_io_ops, 3005 s, 3006 "cirrus-bitblt-mmio", 3007 0x400000); 3008 memory_region_set_flush_coalesced(&s->cirrus_linear_bitblt_io); 3009 3010 /* I/O handler for memory-mapped I/O */ 3011 memory_region_init_io(&s->cirrus_mmio_io, owner, &cirrus_mmio_io_ops, s, 3012 "cirrus-mmio", CIRRUS_PNPMMIO_SIZE); 3013 memory_region_set_flush_coalesced(&s->cirrus_mmio_io); 3014 3015 s->real_vram_size = 3016 (s->device_id == CIRRUS_ID_CLGD5446) ? 4 * MiB : 2 * MiB; 3017 3018 /* XXX: s->vga.vram_size must be a power of two */ 3019 s->cirrus_addr_mask = s->real_vram_size - 1; 3020 s->linear_mmio_mask = s->real_vram_size - 256; 3021 3022 s->vga.get_bpp = cirrus_get_bpp; 3023 s->vga.get_offsets = cirrus_get_offsets; 3024 s->vga.get_resolution = cirrus_get_resolution; 3025 s->vga.cursor_invalidate = cirrus_cursor_invalidate; 3026 s->vga.cursor_draw_line = cirrus_cursor_draw_line; 3027 3028 qemu_register_reset(cirrus_reset, s); 3029 } 3030 3031 /*************************************** 3032 * 3033 * ISA bus support 3034 * 3035 ***************************************/ 3036 3037 static void isa_cirrus_vga_realizefn(DeviceState *dev, Error **errp) 3038 { 3039 ISADevice *isadev = ISA_DEVICE(dev); 3040 ISACirrusVGAState *d = ISA_CIRRUS_VGA(dev); 3041 VGACommonState *s = &d->cirrus_vga.vga; 3042 3043 /* follow real hardware, cirrus card emulated has 4 MB video memory. 3044 Also accept 8 MB/16 MB for backward compatibility. */ 3045 if (s->vram_size_mb != 4 && s->vram_size_mb != 8 && 3046 s->vram_size_mb != 16) { 3047 error_setg(errp, "Invalid cirrus_vga ram size '%u'", 3048 s->vram_size_mb); 3049 return; 3050 } 3051 s->global_vmstate = true; 3052 vga_common_init(s, OBJECT(dev)); 3053 cirrus_init_common(&d->cirrus_vga, OBJECT(dev), CIRRUS_ID_CLGD5430, 0, 3054 isa_address_space(isadev), 3055 isa_address_space_io(isadev)); 3056 s->con = graphic_console_init(dev, 0, s->hw_ops, s); 3057 rom_add_vga(VGABIOS_CIRRUS_FILENAME); 3058 /* XXX ISA-LFB support */ 3059 /* FIXME not qdev yet */ 3060 } 3061 3062 static Property isa_cirrus_vga_properties[] = { 3063 DEFINE_PROP_UINT32("vgamem_mb", struct ISACirrusVGAState, 3064 cirrus_vga.vga.vram_size_mb, 4), 3065 DEFINE_PROP_BOOL("blitter", struct ISACirrusVGAState, 3066 cirrus_vga.enable_blitter, true), 3067 DEFINE_PROP_END_OF_LIST(), 3068 }; 3069 3070 static void isa_cirrus_vga_class_init(ObjectClass *klass, void *data) 3071 { 3072 DeviceClass *dc = DEVICE_CLASS(klass); 3073 3074 dc->vmsd = &vmstate_cirrus_vga; 3075 dc->realize = isa_cirrus_vga_realizefn; 3076 dc->props = isa_cirrus_vga_properties; 3077 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); 3078 } 3079 3080 static const TypeInfo isa_cirrus_vga_info = { 3081 .name = TYPE_ISA_CIRRUS_VGA, 3082 .parent = TYPE_ISA_DEVICE, 3083 .instance_size = sizeof(ISACirrusVGAState), 3084 .class_init = isa_cirrus_vga_class_init, 3085 }; 3086 3087 /*************************************** 3088 * 3089 * PCI bus support 3090 * 3091 ***************************************/ 3092 3093 static void pci_cirrus_vga_realize(PCIDevice *dev, Error **errp) 3094 { 3095 PCICirrusVGAState *d = PCI_CIRRUS_VGA(dev); 3096 CirrusVGAState *s = &d->cirrus_vga; 3097 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); 3098 int16_t device_id = pc->device_id; 3099 3100 /* follow real hardware, cirrus card emulated has 4 MB video memory. 3101 Also accept 8 MB/16 MB for backward compatibility. */ 3102 if (s->vga.vram_size_mb != 4 && s->vga.vram_size_mb != 8 && 3103 s->vga.vram_size_mb != 16) { 3104 error_setg(errp, "Invalid cirrus_vga ram size '%u'", 3105 s->vga.vram_size_mb); 3106 return; 3107 } 3108 /* setup VGA */ 3109 vga_common_init(&s->vga, OBJECT(dev)); 3110 cirrus_init_common(s, OBJECT(dev), device_id, 1, pci_address_space(dev), 3111 pci_address_space_io(dev)); 3112 s->vga.con = graphic_console_init(DEVICE(dev), 0, s->vga.hw_ops, &s->vga); 3113 3114 /* setup PCI */ 3115 3116 memory_region_init(&s->pci_bar, OBJECT(dev), "cirrus-pci-bar0", 0x2000000); 3117 3118 /* XXX: add byte swapping apertures */ 3119 memory_region_add_subregion(&s->pci_bar, 0, &s->cirrus_linear_io); 3120 memory_region_add_subregion(&s->pci_bar, 0x1000000, 3121 &s->cirrus_linear_bitblt_io); 3122 3123 /* setup memory space */ 3124 /* memory #0 LFB */ 3125 /* memory #1 memory-mapped I/O */ 3126 /* XXX: s->vga.vram_size must be a power of two */ 3127 pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->pci_bar); 3128 if (device_id == CIRRUS_ID_CLGD5446) { 3129 pci_register_bar(&d->dev, 1, 0, &s->cirrus_mmio_io); 3130 } 3131 } 3132 3133 static Property pci_vga_cirrus_properties[] = { 3134 DEFINE_PROP_UINT32("vgamem_mb", struct PCICirrusVGAState, 3135 cirrus_vga.vga.vram_size_mb, 4), 3136 DEFINE_PROP_BOOL("blitter", struct PCICirrusVGAState, 3137 cirrus_vga.enable_blitter, true), 3138 DEFINE_PROP_BOOL("global-vmstate", struct PCICirrusVGAState, 3139 cirrus_vga.vga.global_vmstate, false), 3140 DEFINE_PROP_END_OF_LIST(), 3141 }; 3142 3143 static void cirrus_vga_class_init(ObjectClass *klass, void *data) 3144 { 3145 DeviceClass *dc = DEVICE_CLASS(klass); 3146 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 3147 3148 k->realize = pci_cirrus_vga_realize; 3149 k->romfile = VGABIOS_CIRRUS_FILENAME; 3150 k->vendor_id = PCI_VENDOR_ID_CIRRUS; 3151 k->device_id = CIRRUS_ID_CLGD5446; 3152 k->class_id = PCI_CLASS_DISPLAY_VGA; 3153 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); 3154 dc->desc = "Cirrus CLGD 54xx VGA"; 3155 dc->vmsd = &vmstate_pci_cirrus_vga; 3156 dc->props = pci_vga_cirrus_properties; 3157 dc->hotpluggable = false; 3158 } 3159 3160 static const TypeInfo cirrus_vga_info = { 3161 .name = TYPE_PCI_CIRRUS_VGA, 3162 .parent = TYPE_PCI_DEVICE, 3163 .instance_size = sizeof(PCICirrusVGAState), 3164 .class_init = cirrus_vga_class_init, 3165 .interfaces = (InterfaceInfo[]) { 3166 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 3167 { }, 3168 }, 3169 }; 3170 3171 static void cirrus_vga_register_types(void) 3172 { 3173 type_register_static(&isa_cirrus_vga_info); 3174 type_register_static(&cirrus_vga_info); 3175 } 3176 3177 type_init(cirrus_vga_register_types) 3178