1 /* 2 * QEMU ATI SVGA emulation 3 * 4 * Copyright (c) 2019 BALATON Zoltan 5 * 6 * This work is licensed under the GNU GPL license version 2 or later. 7 */ 8 9 /* 10 * WARNING: 11 * This is very incomplete and only enough for Linux console and some 12 * unaccelerated X output at the moment. 13 * Currently it's little more than a frame buffer with minimal functions, 14 * other more advanced features of the hardware are yet to be implemented. 15 * We only aim for Rage 128 Pro (and some RV100) and 2D only at first, 16 * No 3D at all yet (maybe after 2D works, but feel free to improve it) 17 */ 18 19 #include "qemu/osdep.h" 20 #include "ati_int.h" 21 #include "ati_regs.h" 22 #include "vga-access.h" 23 #include "hw/qdev-properties.h" 24 #include "vga_regs.h" 25 #include "qemu/log.h" 26 #include "qemu/module.h" 27 #include "qemu/error-report.h" 28 #include "qapi/error.h" 29 #include "ui/console.h" 30 #include "hw/display/i2c-ddc.h" 31 #include "trace.h" 32 33 #define ATI_DEBUG_HW_CURSOR 0 34 35 static const struct { 36 const char *name; 37 uint16_t dev_id; 38 } ati_model_aliases[] = { 39 { "rage128p", PCI_DEVICE_ID_ATI_RAGE128_PF }, 40 { "rv100", PCI_DEVICE_ID_ATI_RADEON_QY }, 41 }; 42 43 enum { VGA_MODE, EXT_MODE }; 44 45 static void ati_vga_switch_mode(ATIVGAState *s) 46 { 47 DPRINTF("%d -> %d\n", 48 s->mode, !!(s->regs.crtc_gen_cntl & CRTC2_EXT_DISP_EN)); 49 if (s->regs.crtc_gen_cntl & CRTC2_EXT_DISP_EN) { 50 /* Extended mode enabled */ 51 s->mode = EXT_MODE; 52 if (s->regs.crtc_gen_cntl & CRTC2_EN) { 53 /* CRT controller enabled, use CRTC values */ 54 /* FIXME Should these be the same as VGA CRTC regs? */ 55 uint32_t offs = s->regs.crtc_offset & 0x07ffffff; 56 int stride = (s->regs.crtc_pitch & 0x7ff) * 8; 57 int bpp = 0; 58 int h, v; 59 60 if (s->regs.crtc_h_total_disp == 0) { 61 s->regs.crtc_h_total_disp = ((640 / 8) - 1) << 16; 62 } 63 if (s->regs.crtc_v_total_disp == 0) { 64 s->regs.crtc_v_total_disp = (480 - 1) << 16; 65 } 66 h = ((s->regs.crtc_h_total_disp >> 16) + 1) * 8; 67 v = (s->regs.crtc_v_total_disp >> 16) + 1; 68 switch (s->regs.crtc_gen_cntl & CRTC_PIX_WIDTH_MASK) { 69 case CRTC_PIX_WIDTH_4BPP: 70 bpp = 4; 71 break; 72 case CRTC_PIX_WIDTH_8BPP: 73 bpp = 8; 74 break; 75 case CRTC_PIX_WIDTH_15BPP: 76 bpp = 15; 77 break; 78 case CRTC_PIX_WIDTH_16BPP: 79 bpp = 16; 80 break; 81 case CRTC_PIX_WIDTH_24BPP: 82 bpp = 24; 83 break; 84 case CRTC_PIX_WIDTH_32BPP: 85 bpp = 32; 86 break; 87 default: 88 qemu_log_mask(LOG_UNIMP, "Unsupported bpp value\n"); 89 } 90 assert(bpp != 0); 91 DPRINTF("Switching to %dx%d %d %d @ %x\n", h, v, stride, bpp, offs); 92 vbe_ioport_write_index(&s->vga, 0, VBE_DISPI_INDEX_ENABLE); 93 vbe_ioport_write_data(&s->vga, 0, VBE_DISPI_DISABLED); 94 s->vga.big_endian_fb = (s->regs.config_cntl & APER_0_ENDIAN || 95 s->regs.config_cntl & APER_1_ENDIAN ? 96 true : false); 97 /* reset VBE regs then set up mode */ 98 s->vga.vbe_regs[VBE_DISPI_INDEX_XRES] = h; 99 s->vga.vbe_regs[VBE_DISPI_INDEX_YRES] = v; 100 s->vga.vbe_regs[VBE_DISPI_INDEX_BPP] = bpp; 101 /* enable mode via ioport so it updates vga regs */ 102 vbe_ioport_write_index(&s->vga, 0, VBE_DISPI_INDEX_ENABLE); 103 vbe_ioport_write_data(&s->vga, 0, VBE_DISPI_ENABLED | 104 VBE_DISPI_LFB_ENABLED | VBE_DISPI_NOCLEARMEM | 105 (s->regs.dac_cntl & DAC_8BIT_EN ? VBE_DISPI_8BIT_DAC : 0)); 106 /* now set offset and stride after enable as that resets these */ 107 if (stride) { 108 int bypp = DIV_ROUND_UP(bpp, BITS_PER_BYTE); 109 110 vbe_ioport_write_index(&s->vga, 0, VBE_DISPI_INDEX_VIRT_WIDTH); 111 vbe_ioport_write_data(&s->vga, 0, stride); 112 stride *= bypp; 113 if (offs % stride) { 114 DPRINTF("CRTC offset is not multiple of pitch\n"); 115 vbe_ioport_write_index(&s->vga, 0, 116 VBE_DISPI_INDEX_X_OFFSET); 117 vbe_ioport_write_data(&s->vga, 0, offs % stride / bypp); 118 } 119 vbe_ioport_write_index(&s->vga, 0, VBE_DISPI_INDEX_Y_OFFSET); 120 vbe_ioport_write_data(&s->vga, 0, offs / stride); 121 DPRINTF("VBE offset (%d,%d), vbe_start_addr=%x\n", 122 s->vga.vbe_regs[VBE_DISPI_INDEX_X_OFFSET], 123 s->vga.vbe_regs[VBE_DISPI_INDEX_Y_OFFSET], 124 s->vga.vbe_start_addr); 125 } 126 } 127 } else { 128 /* VGA mode enabled */ 129 s->mode = VGA_MODE; 130 vbe_ioport_write_index(&s->vga, 0, VBE_DISPI_INDEX_ENABLE); 131 vbe_ioport_write_data(&s->vga, 0, VBE_DISPI_DISABLED); 132 } 133 } 134 135 /* Used by host side hardware cursor */ 136 static void ati_cursor_define(ATIVGAState *s) 137 { 138 uint8_t data[1024]; 139 uint32_t srcoff; 140 int i, j, idx = 0; 141 142 if ((s->regs.cur_offset & BIT(31)) || s->cursor_guest_mode) { 143 return; /* Do not update cursor if locked or rendered by guest */ 144 } 145 /* FIXME handle cur_hv_offs correctly */ 146 srcoff = s->regs.cur_offset - 147 (s->regs.cur_hv_offs >> 16) - (s->regs.cur_hv_offs & 0xffff) * 16; 148 for (i = 0; i < 64; i++) { 149 for (j = 0; j < 8; j++, idx++) { 150 data[idx] = vga_read_byte(&s->vga, srcoff + i * 16 + j); 151 data[512 + idx] = vga_read_byte(&s->vga, srcoff + i * 16 + j + 8); 152 } 153 } 154 if (!s->cursor) { 155 s->cursor = cursor_alloc(64, 64); 156 } 157 cursor_set_mono(s->cursor, s->regs.cur_color1, s->regs.cur_color0, 158 &data[512], 1, &data[0]); 159 dpy_cursor_define(s->vga.con, s->cursor); 160 } 161 162 /* Alternatively support guest rendered hardware cursor */ 163 static void ati_cursor_invalidate(VGACommonState *vga) 164 { 165 ATIVGAState *s = container_of(vga, ATIVGAState, vga); 166 int size = (s->regs.crtc_gen_cntl & CRTC2_CUR_EN) ? 64 : 0; 167 168 if (s->regs.cur_offset & BIT(31)) { 169 return; /* Do not update cursor if locked */ 170 } 171 if (s->cursor_size != size || 172 vga->hw_cursor_x != s->regs.cur_hv_pos >> 16 || 173 vga->hw_cursor_y != (s->regs.cur_hv_pos & 0xffff) || 174 s->cursor_offset != s->regs.cur_offset - (s->regs.cur_hv_offs >> 16) - 175 (s->regs.cur_hv_offs & 0xffff) * 16) { 176 /* Remove old cursor then update and show new one if needed */ 177 vga_invalidate_scanlines(vga, vga->hw_cursor_y, vga->hw_cursor_y + 63); 178 vga->hw_cursor_x = s->regs.cur_hv_pos >> 16; 179 vga->hw_cursor_y = s->regs.cur_hv_pos & 0xffff; 180 s->cursor_offset = s->regs.cur_offset - (s->regs.cur_hv_offs >> 16) - 181 (s->regs.cur_hv_offs & 0xffff) * 16; 182 s->cursor_size = size; 183 if (size) { 184 vga_invalidate_scanlines(vga, 185 vga->hw_cursor_y, vga->hw_cursor_y + 63); 186 } 187 } 188 } 189 190 static void ati_cursor_draw_line(VGACommonState *vga, uint8_t *d, int scr_y) 191 { 192 ATIVGAState *s = container_of(vga, ATIVGAState, vga); 193 uint32_t srcoff; 194 uint32_t *dp = (uint32_t *)d; 195 int i, j, h; 196 197 if (!(s->regs.crtc_gen_cntl & CRTC2_CUR_EN) || 198 scr_y < vga->hw_cursor_y || scr_y >= vga->hw_cursor_y + 64 || 199 scr_y > s->regs.crtc_v_total_disp >> 16) { 200 return; 201 } 202 /* FIXME handle cur_hv_offs correctly */ 203 srcoff = s->cursor_offset + (scr_y - vga->hw_cursor_y) * 16; 204 dp = &dp[vga->hw_cursor_x]; 205 h = ((s->regs.crtc_h_total_disp >> 16) + 1) * 8; 206 for (i = 0; i < 8; i++) { 207 uint32_t color; 208 uint8_t abits = vga_read_byte(vga, srcoff + i); 209 uint8_t xbits = vga_read_byte(vga, srcoff + i + 8); 210 for (j = 0; j < 8; j++, abits <<= 1, xbits <<= 1) { 211 if (abits & BIT(7)) { 212 if (xbits & BIT(7)) { 213 color = dp[i * 8 + j] ^ 0xffffffff; /* complement */ 214 } else { 215 continue; /* transparent, no change */ 216 } 217 } else { 218 color = (xbits & BIT(7) ? s->regs.cur_color1 : 219 s->regs.cur_color0) | 0xff000000; 220 } 221 if (vga->hw_cursor_x + i * 8 + j >= h) { 222 return; /* end of screen, don't span to next line */ 223 } 224 dp[i * 8 + j] = color; 225 } 226 } 227 } 228 229 static uint64_t ati_i2c(bitbang_i2c_interface *i2c, uint64_t data, int base) 230 { 231 bool c = (data & BIT(base + 17) ? !!(data & BIT(base + 1)) : 1); 232 bool d = (data & BIT(base + 16) ? !!(data & BIT(base)) : 1); 233 234 bitbang_i2c_set(i2c, BITBANG_I2C_SCL, c); 235 d = bitbang_i2c_set(i2c, BITBANG_I2C_SDA, d); 236 237 data &= ~0xf00ULL; 238 if (c) { 239 data |= BIT(base + 9); 240 } 241 if (d) { 242 data |= BIT(base + 8); 243 } 244 return data; 245 } 246 247 static void ati_vga_update_irq(ATIVGAState *s) 248 { 249 pci_set_irq(&s->dev, !!(s->regs.gen_int_status & s->regs.gen_int_cntl)); 250 } 251 252 static void ati_vga_vblank_irq(void *opaque) 253 { 254 ATIVGAState *s = opaque; 255 256 timer_mod(&s->vblank_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 257 NANOSECONDS_PER_SECOND / 60); 258 s->regs.gen_int_status |= CRTC_VBLANK_INT; 259 ati_vga_update_irq(s); 260 } 261 262 static inline uint64_t ati_reg_read_offs(uint32_t reg, int offs, 263 unsigned int size) 264 { 265 if (offs == 0 && size == 4) { 266 return reg; 267 } else { 268 return extract32(reg, offs * BITS_PER_BYTE, size * BITS_PER_BYTE); 269 } 270 } 271 272 static uint64_t ati_mm_read(void *opaque, hwaddr addr, unsigned int size) 273 { 274 ATIVGAState *s = opaque; 275 uint64_t val = 0; 276 277 switch (addr) { 278 case MM_INDEX: 279 val = s->regs.mm_index; 280 break; 281 case MM_DATA ... MM_DATA + 3: 282 /* indexed access to regs or memory */ 283 if (s->regs.mm_index & BIT(31)) { 284 uint32_t idx = s->regs.mm_index & ~BIT(31); 285 if (idx <= s->vga.vram_size - size) { 286 val = ldn_le_p(s->vga.vram_ptr + idx, size); 287 } 288 } else if (s->regs.mm_index > MM_DATA + 3) { 289 val = ati_mm_read(s, s->regs.mm_index + addr - MM_DATA, size); 290 } else { 291 qemu_log_mask(LOG_GUEST_ERROR, 292 "ati_mm_read: mm_index too small: %u\n", s->regs.mm_index); 293 } 294 break; 295 case BIOS_0_SCRATCH ... BUS_CNTL - 1: 296 { 297 int i = (addr - BIOS_0_SCRATCH) / 4; 298 if (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF && i > 3) { 299 break; 300 } 301 val = ati_reg_read_offs(s->regs.bios_scratch[i], 302 addr - (BIOS_0_SCRATCH + i * 4), size); 303 break; 304 } 305 case GEN_INT_CNTL: 306 val = s->regs.gen_int_cntl; 307 break; 308 case GEN_INT_STATUS: 309 val = s->regs.gen_int_status; 310 break; 311 case CRTC_GEN_CNTL ... CRTC_GEN_CNTL + 3: 312 val = ati_reg_read_offs(s->regs.crtc_gen_cntl, 313 addr - CRTC_GEN_CNTL, size); 314 break; 315 case CRTC_EXT_CNTL ... CRTC_EXT_CNTL + 3: 316 val = ati_reg_read_offs(s->regs.crtc_ext_cntl, 317 addr - CRTC_EXT_CNTL, size); 318 break; 319 case DAC_CNTL: 320 val = s->regs.dac_cntl; 321 break; 322 case GPIO_VGA_DDC: 323 val = s->regs.gpio_vga_ddc; 324 break; 325 case GPIO_DVI_DDC: 326 val = s->regs.gpio_dvi_ddc; 327 break; 328 case GPIO_MONID ... GPIO_MONID + 3: 329 val = ati_reg_read_offs(s->regs.gpio_monid, 330 addr - GPIO_MONID, size); 331 break; 332 case PALETTE_INDEX: 333 /* FIXME unaligned access */ 334 val = vga_ioport_read(&s->vga, VGA_PEL_IR) << 16; 335 val |= vga_ioport_read(&s->vga, VGA_PEL_IW) & 0xff; 336 break; 337 case PALETTE_DATA: 338 val = vga_ioport_read(&s->vga, VGA_PEL_D); 339 break; 340 case CNFG_CNTL: 341 val = s->regs.config_cntl; 342 break; 343 case CNFG_MEMSIZE: 344 val = s->vga.vram_size; 345 break; 346 case CONFIG_APER_0_BASE: 347 case CONFIG_APER_1_BASE: 348 val = pci_default_read_config(&s->dev, 349 PCI_BASE_ADDRESS_0, size) & 0xfffffff0; 350 break; 351 case CONFIG_APER_SIZE: 352 val = s->vga.vram_size; 353 break; 354 case CONFIG_REG_1_BASE: 355 val = pci_default_read_config(&s->dev, 356 PCI_BASE_ADDRESS_2, size) & 0xfffffff0; 357 break; 358 case CONFIG_REG_APER_SIZE: 359 val = memory_region_size(&s->mm); 360 break; 361 case MC_STATUS: 362 val = 5; 363 break; 364 case RBBM_STATUS: 365 case GUI_STAT: 366 val = 64; /* free CMDFIFO entries */ 367 break; 368 case CRTC_H_TOTAL_DISP: 369 val = s->regs.crtc_h_total_disp; 370 break; 371 case CRTC_H_SYNC_STRT_WID: 372 val = s->regs.crtc_h_sync_strt_wid; 373 break; 374 case CRTC_V_TOTAL_DISP: 375 val = s->regs.crtc_v_total_disp; 376 break; 377 case CRTC_V_SYNC_STRT_WID: 378 val = s->regs.crtc_v_sync_strt_wid; 379 break; 380 case CRTC_OFFSET: 381 val = s->regs.crtc_offset; 382 break; 383 case CRTC_OFFSET_CNTL: 384 val = s->regs.crtc_offset_cntl; 385 break; 386 case CRTC_PITCH: 387 val = s->regs.crtc_pitch; 388 break; 389 case 0xf00 ... 0xfff: 390 val = pci_default_read_config(&s->dev, addr - 0xf00, size); 391 break; 392 case CUR_OFFSET: 393 val = s->regs.cur_offset; 394 break; 395 case CUR_HORZ_VERT_POSN: 396 val = s->regs.cur_hv_pos; 397 val |= s->regs.cur_offset & BIT(31); 398 break; 399 case CUR_HORZ_VERT_OFF: 400 val = s->regs.cur_hv_offs; 401 val |= s->regs.cur_offset & BIT(31); 402 break; 403 case CUR_CLR0: 404 val = s->regs.cur_color0; 405 break; 406 case CUR_CLR1: 407 val = s->regs.cur_color1; 408 break; 409 case DST_OFFSET: 410 val = s->regs.dst_offset; 411 break; 412 case DST_PITCH: 413 val = s->regs.dst_pitch; 414 if (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF) { 415 val &= s->regs.dst_tile << 16; 416 } 417 break; 418 case DST_WIDTH: 419 val = s->regs.dst_width; 420 break; 421 case DST_HEIGHT: 422 val = s->regs.dst_height; 423 break; 424 case SRC_X: 425 val = s->regs.src_x; 426 break; 427 case SRC_Y: 428 val = s->regs.src_y; 429 break; 430 case DST_X: 431 val = s->regs.dst_x; 432 break; 433 case DST_Y: 434 val = s->regs.dst_y; 435 break; 436 case DP_GUI_MASTER_CNTL: 437 val = s->regs.dp_gui_master_cntl; 438 break; 439 case SRC_OFFSET: 440 val = s->regs.src_offset; 441 break; 442 case SRC_PITCH: 443 val = s->regs.src_pitch; 444 if (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF) { 445 val &= s->regs.src_tile << 16; 446 } 447 break; 448 case DP_BRUSH_BKGD_CLR: 449 val = s->regs.dp_brush_bkgd_clr; 450 break; 451 case DP_BRUSH_FRGD_CLR: 452 val = s->regs.dp_brush_frgd_clr; 453 break; 454 case DP_SRC_FRGD_CLR: 455 val = s->regs.dp_src_frgd_clr; 456 break; 457 case DP_SRC_BKGD_CLR: 458 val = s->regs.dp_src_bkgd_clr; 459 break; 460 case DP_CNTL: 461 val = s->regs.dp_cntl; 462 break; 463 case DP_DATATYPE: 464 val = s->regs.dp_datatype; 465 break; 466 case DP_MIX: 467 val = s->regs.dp_mix; 468 break; 469 case DP_WRITE_MASK: 470 val = s->regs.dp_write_mask; 471 break; 472 case DEFAULT_OFFSET: 473 val = s->regs.default_offset; 474 if (s->dev_id != PCI_DEVICE_ID_ATI_RAGE128_PF) { 475 val >>= 10; 476 val |= s->regs.default_pitch << 16; 477 val |= s->regs.default_tile << 30; 478 } 479 break; 480 case DEFAULT_PITCH: 481 val = s->regs.default_pitch; 482 val |= s->regs.default_tile << 16; 483 break; 484 case DEFAULT_SC_BOTTOM_RIGHT: 485 val = s->regs.default_sc_bottom_right; 486 break; 487 default: 488 break; 489 } 490 if (addr < CUR_OFFSET || addr > CUR_CLR1 || ATI_DEBUG_HW_CURSOR) { 491 trace_ati_mm_read(size, addr, ati_reg_name(addr & ~3ULL), val); 492 } 493 return val; 494 } 495 496 static inline void ati_reg_write_offs(uint32_t *reg, int offs, 497 uint64_t data, unsigned int size) 498 { 499 if (offs == 0 && size == 4) { 500 *reg = data; 501 } else { 502 *reg = deposit32(*reg, offs * BITS_PER_BYTE, size * BITS_PER_BYTE, 503 data); 504 } 505 } 506 507 static void ati_mm_write(void *opaque, hwaddr addr, 508 uint64_t data, unsigned int size) 509 { 510 ATIVGAState *s = opaque; 511 512 if (addr < CUR_OFFSET || addr > CUR_CLR1 || ATI_DEBUG_HW_CURSOR) { 513 trace_ati_mm_write(size, addr, ati_reg_name(addr & ~3ULL), data); 514 } 515 switch (addr) { 516 case MM_INDEX: 517 s->regs.mm_index = data & ~3; 518 break; 519 case MM_DATA ... MM_DATA + 3: 520 /* indexed access to regs or memory */ 521 if (s->regs.mm_index & BIT(31)) { 522 uint32_t idx = s->regs.mm_index & ~BIT(31); 523 if (idx <= s->vga.vram_size - size) { 524 stn_le_p(s->vga.vram_ptr + idx, size, data); 525 } 526 } else if (s->regs.mm_index > MM_DATA + 3) { 527 ati_mm_write(s, s->regs.mm_index + addr - MM_DATA, data, size); 528 } else { 529 qemu_log_mask(LOG_GUEST_ERROR, 530 "ati_mm_write: mm_index too small: %u\n", s->regs.mm_index); 531 } 532 break; 533 case BIOS_0_SCRATCH ... BUS_CNTL - 1: 534 { 535 int i = (addr - BIOS_0_SCRATCH) / 4; 536 if (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF && i > 3) { 537 break; 538 } 539 ati_reg_write_offs(&s->regs.bios_scratch[i], 540 addr - (BIOS_0_SCRATCH + i * 4), data, size); 541 break; 542 } 543 case GEN_INT_CNTL: 544 s->regs.gen_int_cntl = data; 545 if (data & CRTC_VBLANK_INT) { 546 ati_vga_vblank_irq(s); 547 } else { 548 timer_del(&s->vblank_timer); 549 ati_vga_update_irq(s); 550 } 551 break; 552 case GEN_INT_STATUS: 553 data &= (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF ? 554 0x000f040fUL : 0xfc080effUL); 555 s->regs.gen_int_status &= ~data; 556 ati_vga_update_irq(s); 557 break; 558 case CRTC_GEN_CNTL ... CRTC_GEN_CNTL + 3: 559 { 560 uint32_t val = s->regs.crtc_gen_cntl; 561 ati_reg_write_offs(&s->regs.crtc_gen_cntl, 562 addr - CRTC_GEN_CNTL, data, size); 563 if ((val & CRTC2_CUR_EN) != (s->regs.crtc_gen_cntl & CRTC2_CUR_EN)) { 564 if (s->cursor_guest_mode) { 565 s->vga.force_shadow = !!(s->regs.crtc_gen_cntl & CRTC2_CUR_EN); 566 } else { 567 if (s->regs.crtc_gen_cntl & CRTC2_CUR_EN) { 568 ati_cursor_define(s); 569 } 570 dpy_mouse_set(s->vga.con, s->regs.cur_hv_pos >> 16, 571 s->regs.cur_hv_pos & 0xffff, 572 (s->regs.crtc_gen_cntl & CRTC2_CUR_EN) != 0); 573 } 574 } 575 if ((val & (CRTC2_EXT_DISP_EN | CRTC2_EN)) != 576 (s->regs.crtc_gen_cntl & (CRTC2_EXT_DISP_EN | CRTC2_EN))) { 577 ati_vga_switch_mode(s); 578 } 579 break; 580 } 581 case CRTC_EXT_CNTL ... CRTC_EXT_CNTL + 3: 582 { 583 uint32_t val = s->regs.crtc_ext_cntl; 584 ati_reg_write_offs(&s->regs.crtc_ext_cntl, 585 addr - CRTC_EXT_CNTL, data, size); 586 if (s->regs.crtc_ext_cntl & CRT_CRTC_DISPLAY_DIS) { 587 DPRINTF("Display disabled\n"); 588 s->vga.ar_index &= ~BIT(5); 589 } else { 590 DPRINTF("Display enabled\n"); 591 s->vga.ar_index |= BIT(5); 592 ati_vga_switch_mode(s); 593 } 594 if ((val & CRT_CRTC_DISPLAY_DIS) != 595 (s->regs.crtc_ext_cntl & CRT_CRTC_DISPLAY_DIS)) { 596 ati_vga_switch_mode(s); 597 } 598 break; 599 } 600 case DAC_CNTL: 601 s->regs.dac_cntl = data & 0xffffe3ff; 602 s->vga.dac_8bit = !!(data & DAC_8BIT_EN); 603 break; 604 case GPIO_VGA_DDC: 605 if (s->dev_id != PCI_DEVICE_ID_ATI_RAGE128_PF) { 606 /* FIXME: Maybe add a property to select VGA or DVI port? */ 607 } 608 break; 609 case GPIO_DVI_DDC: 610 if (s->dev_id != PCI_DEVICE_ID_ATI_RAGE128_PF) { 611 s->regs.gpio_dvi_ddc = ati_i2c(&s->bbi2c, data, 0); 612 } 613 break; 614 case GPIO_MONID ... GPIO_MONID + 3: 615 /* FIXME What does Radeon have here? */ 616 if (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF) { 617 ati_reg_write_offs(&s->regs.gpio_monid, 618 addr - GPIO_MONID, data, size); 619 /* 620 * Rage128p accesses DDC used to get EDID via these bits. 621 * Because some drivers access this via multiple byte writes 622 * we have to be careful when we send bits to avoid spurious 623 * changes in bitbang_i2c state. So only do it when mask is set 624 * and either the enable bits are changed or output bits changed 625 * while enabled. 626 */ 627 if ((s->regs.gpio_monid & BIT(25)) && 628 ((addr <= GPIO_MONID + 2 && addr + size > GPIO_MONID + 2) || 629 (addr == GPIO_MONID && (s->regs.gpio_monid & 0x60000)))) { 630 s->regs.gpio_monid = ati_i2c(&s->bbi2c, s->regs.gpio_monid, 1); 631 } 632 } 633 break; 634 case PALETTE_INDEX ... PALETTE_INDEX + 3: 635 if (size == 4) { 636 vga_ioport_write(&s->vga, VGA_PEL_IR, (data >> 16) & 0xff); 637 vga_ioport_write(&s->vga, VGA_PEL_IW, data & 0xff); 638 } else { 639 if (addr == PALETTE_INDEX) { 640 vga_ioport_write(&s->vga, VGA_PEL_IW, data & 0xff); 641 } else { 642 vga_ioport_write(&s->vga, VGA_PEL_IR, data & 0xff); 643 } 644 } 645 break; 646 case PALETTE_DATA ... PALETTE_DATA + 3: 647 data <<= addr - PALETTE_DATA; 648 data = bswap32(data) >> 8; 649 vga_ioport_write(&s->vga, VGA_PEL_D, data & 0xff); 650 data >>= 8; 651 vga_ioport_write(&s->vga, VGA_PEL_D, data & 0xff); 652 data >>= 8; 653 vga_ioport_write(&s->vga, VGA_PEL_D, data & 0xff); 654 break; 655 case CNFG_CNTL: 656 s->regs.config_cntl = data; 657 break; 658 case CRTC_H_TOTAL_DISP: 659 s->regs.crtc_h_total_disp = data & 0x07ff07ff; 660 break; 661 case CRTC_H_SYNC_STRT_WID: 662 s->regs.crtc_h_sync_strt_wid = data & 0x17bf1fff; 663 break; 664 case CRTC_V_TOTAL_DISP: 665 s->regs.crtc_v_total_disp = data & 0x0fff0fff; 666 break; 667 case CRTC_V_SYNC_STRT_WID: 668 s->regs.crtc_v_sync_strt_wid = data & 0x9f0fff; 669 break; 670 case CRTC_OFFSET: 671 s->regs.crtc_offset = data & 0xc7ffffff; 672 break; 673 case CRTC_OFFSET_CNTL: 674 s->regs.crtc_offset_cntl = data; /* FIXME */ 675 break; 676 case CRTC_PITCH: 677 s->regs.crtc_pitch = data & 0x07ff07ff; 678 break; 679 case 0xf00 ... 0xfff: 680 /* read-only copy of PCI config space so ignore writes */ 681 break; 682 case CUR_OFFSET: 683 if (s->regs.cur_offset != (data & 0x87fffff0)) { 684 s->regs.cur_offset = data & 0x87fffff0; 685 ati_cursor_define(s); 686 } 687 break; 688 case CUR_HORZ_VERT_POSN: 689 s->regs.cur_hv_pos = data & 0x3fff0fff; 690 if (data & BIT(31)) { 691 s->regs.cur_offset |= data & BIT(31); 692 } else if (s->regs.cur_offset & BIT(31)) { 693 s->regs.cur_offset &= ~BIT(31); 694 ati_cursor_define(s); 695 } 696 if (!s->cursor_guest_mode && 697 (s->regs.crtc_gen_cntl & CRTC2_CUR_EN) && !(data & BIT(31))) { 698 dpy_mouse_set(s->vga.con, s->regs.cur_hv_pos >> 16, 699 s->regs.cur_hv_pos & 0xffff, 1); 700 } 701 break; 702 case CUR_HORZ_VERT_OFF: 703 s->regs.cur_hv_offs = data & 0x3f003f; 704 if (data & BIT(31)) { 705 s->regs.cur_offset |= data & BIT(31); 706 } else if (s->regs.cur_offset & BIT(31)) { 707 s->regs.cur_offset &= ~BIT(31); 708 ati_cursor_define(s); 709 } 710 break; 711 case CUR_CLR0: 712 if (s->regs.cur_color0 != (data & 0xffffff)) { 713 s->regs.cur_color0 = data & 0xffffff; 714 ati_cursor_define(s); 715 } 716 break; 717 case CUR_CLR1: 718 /* 719 * Update cursor unconditionally here because some clients set up 720 * other registers before actually writing cursor data to memory at 721 * offset so we would miss cursor change unless always updating here 722 */ 723 s->regs.cur_color1 = data & 0xffffff; 724 ati_cursor_define(s); 725 break; 726 case DST_OFFSET: 727 if (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF) { 728 s->regs.dst_offset = data & 0xfffffff0; 729 } else { 730 s->regs.dst_offset = data & 0xfffffc00; 731 } 732 break; 733 case DST_PITCH: 734 if (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF) { 735 s->regs.dst_pitch = data & 0x3fff; 736 s->regs.dst_tile = (data >> 16) & 1; 737 } else { 738 s->regs.dst_pitch = data & 0x3ff0; 739 } 740 break; 741 case DST_TILE: 742 if (s->dev_id == PCI_DEVICE_ID_ATI_RADEON_QY) { 743 s->regs.dst_tile = data & 3; 744 } 745 break; 746 case DST_WIDTH: 747 s->regs.dst_width = data & 0x3fff; 748 ati_2d_blt(s); 749 break; 750 case DST_HEIGHT: 751 s->regs.dst_height = data & 0x3fff; 752 break; 753 case SRC_X: 754 s->regs.src_x = data & 0x3fff; 755 break; 756 case SRC_Y: 757 s->regs.src_y = data & 0x3fff; 758 break; 759 case DST_X: 760 s->regs.dst_x = data & 0x3fff; 761 break; 762 case DST_Y: 763 s->regs.dst_y = data & 0x3fff; 764 break; 765 case SRC_PITCH_OFFSET: 766 if (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF) { 767 s->regs.src_offset = (data & 0x1fffff) << 5; 768 s->regs.src_pitch = (data & 0x7fe00000) >> 21; 769 s->regs.src_tile = data >> 31; 770 } else { 771 s->regs.src_offset = (data & 0x3fffff) << 10; 772 s->regs.src_pitch = (data & 0x3fc00000) >> 16; 773 s->regs.src_tile = (data >> 30) & 1; 774 } 775 break; 776 case DST_PITCH_OFFSET: 777 if (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF) { 778 s->regs.dst_offset = (data & 0x1fffff) << 5; 779 s->regs.dst_pitch = (data & 0x7fe00000) >> 21; 780 s->regs.dst_tile = data >> 31; 781 } else { 782 s->regs.dst_offset = (data & 0x3fffff) << 10; 783 s->regs.dst_pitch = (data & 0x3fc00000) >> 16; 784 s->regs.dst_tile = data >> 30; 785 } 786 break; 787 case SRC_Y_X: 788 s->regs.src_x = data & 0x3fff; 789 s->regs.src_y = (data >> 16) & 0x3fff; 790 break; 791 case DST_Y_X: 792 s->regs.dst_x = data & 0x3fff; 793 s->regs.dst_y = (data >> 16) & 0x3fff; 794 break; 795 case DST_HEIGHT_WIDTH: 796 s->regs.dst_width = data & 0x3fff; 797 s->regs.dst_height = (data >> 16) & 0x3fff; 798 ati_2d_blt(s); 799 break; 800 case DP_GUI_MASTER_CNTL: 801 s->regs.dp_gui_master_cntl = data & 0xf800000f; 802 s->regs.dp_datatype = (data & 0x0f00) >> 8 | (data & 0x30f0) << 4 | 803 (data & 0x4000) << 16; 804 s->regs.dp_mix = (data & GMC_ROP3_MASK) | (data & 0x7000000) >> 16; 805 break; 806 case DST_WIDTH_X: 807 s->regs.dst_x = data & 0x3fff; 808 s->regs.dst_width = (data >> 16) & 0x3fff; 809 ati_2d_blt(s); 810 break; 811 case SRC_X_Y: 812 s->regs.src_y = data & 0x3fff; 813 s->regs.src_x = (data >> 16) & 0x3fff; 814 break; 815 case DST_X_Y: 816 s->regs.dst_y = data & 0x3fff; 817 s->regs.dst_x = (data >> 16) & 0x3fff; 818 break; 819 case DST_WIDTH_HEIGHT: 820 s->regs.dst_height = data & 0x3fff; 821 s->regs.dst_width = (data >> 16) & 0x3fff; 822 ati_2d_blt(s); 823 break; 824 case DST_HEIGHT_Y: 825 s->regs.dst_y = data & 0x3fff; 826 s->regs.dst_height = (data >> 16) & 0x3fff; 827 break; 828 case SRC_OFFSET: 829 if (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF) { 830 s->regs.src_offset = data & 0xfffffff0; 831 } else { 832 s->regs.src_offset = data & 0xfffffc00; 833 } 834 break; 835 case SRC_PITCH: 836 if (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF) { 837 s->regs.src_pitch = data & 0x3fff; 838 s->regs.src_tile = (data >> 16) & 1; 839 } else { 840 s->regs.src_pitch = data & 0x3ff0; 841 } 842 break; 843 case DP_BRUSH_BKGD_CLR: 844 s->regs.dp_brush_bkgd_clr = data; 845 break; 846 case DP_BRUSH_FRGD_CLR: 847 s->regs.dp_brush_frgd_clr = data; 848 break; 849 case DP_CNTL: 850 s->regs.dp_cntl = data; 851 break; 852 case DP_DATATYPE: 853 s->regs.dp_datatype = data & 0xe0070f0f; 854 break; 855 case DP_MIX: 856 s->regs.dp_mix = data & 0x00ff0700; 857 break; 858 case DP_WRITE_MASK: 859 s->regs.dp_write_mask = data; 860 break; 861 case DEFAULT_OFFSET: 862 if (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF) { 863 s->regs.default_offset = data & 0xfffffff0; 864 } else { 865 /* Radeon has DEFAULT_PITCH_OFFSET here like DST_PITCH_OFFSET */ 866 s->regs.default_offset = (data & 0x3fffff) << 10; 867 s->regs.default_pitch = (data & 0x3fc00000) >> 16; 868 s->regs.default_tile = data >> 30; 869 } 870 break; 871 case DEFAULT_PITCH: 872 if (s->dev_id == PCI_DEVICE_ID_ATI_RAGE128_PF) { 873 s->regs.default_pitch = data & 0x3fff; 874 s->regs.default_tile = (data >> 16) & 1; 875 } 876 break; 877 case DEFAULT_SC_BOTTOM_RIGHT: 878 s->regs.default_sc_bottom_right = data & 0x3fff3fff; 879 break; 880 default: 881 break; 882 } 883 } 884 885 static const MemoryRegionOps ati_mm_ops = { 886 .read = ati_mm_read, 887 .write = ati_mm_write, 888 .endianness = DEVICE_LITTLE_ENDIAN, 889 }; 890 891 static void ati_vga_realize(PCIDevice *dev, Error **errp) 892 { 893 ATIVGAState *s = ATI_VGA(dev); 894 VGACommonState *vga = &s->vga; 895 896 if (s->model) { 897 int i; 898 for (i = 0; i < ARRAY_SIZE(ati_model_aliases); i++) { 899 if (!strcmp(s->model, ati_model_aliases[i].name)) { 900 s->dev_id = ati_model_aliases[i].dev_id; 901 break; 902 } 903 } 904 if (i >= ARRAY_SIZE(ati_model_aliases)) { 905 warn_report("Unknown ATI VGA model name, " 906 "using default rage128p"); 907 } 908 } 909 if (s->dev_id != PCI_DEVICE_ID_ATI_RAGE128_PF && 910 s->dev_id != PCI_DEVICE_ID_ATI_RADEON_QY) { 911 error_setg(errp, "Unknown ATI VGA device id, " 912 "only 0x5046 and 0x5159 are supported"); 913 return; 914 } 915 pci_set_word(dev->config + PCI_DEVICE_ID, s->dev_id); 916 917 if (s->dev_id == PCI_DEVICE_ID_ATI_RADEON_QY && 918 s->vga.vram_size_mb < 16) { 919 warn_report("Too small video memory for device id"); 920 s->vga.vram_size_mb = 16; 921 } 922 923 /* init vga bits */ 924 vga_common_init(vga, OBJECT(s)); 925 vga_init(vga, OBJECT(s), pci_address_space(dev), 926 pci_address_space_io(dev), true); 927 vga->con = graphic_console_init(DEVICE(s), 0, s->vga.hw_ops, &s->vga); 928 if (s->cursor_guest_mode) { 929 vga->cursor_invalidate = ati_cursor_invalidate; 930 vga->cursor_draw_line = ati_cursor_draw_line; 931 } 932 933 /* ddc, edid */ 934 I2CBus *i2cbus = i2c_init_bus(DEVICE(s), "ati-vga.ddc"); 935 bitbang_i2c_init(&s->bbi2c, i2cbus); 936 I2CSlave *i2cddc = I2C_SLAVE(qdev_new(TYPE_I2CDDC)); 937 i2c_set_slave_address(i2cddc, 0x50); 938 qdev_realize_and_unref(DEVICE(i2cddc), BUS(i2cbus), &error_abort); 939 940 /* mmio register space */ 941 memory_region_init_io(&s->mm, OBJECT(s), &ati_mm_ops, s, 942 "ati.mmregs", 0x4000); 943 /* io space is alias to beginning of mmregs */ 944 memory_region_init_alias(&s->io, OBJECT(s), "ati.io", &s->mm, 0, 0x100); 945 946 pci_register_bar(dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &vga->vram); 947 pci_register_bar(dev, 1, PCI_BASE_ADDRESS_SPACE_IO, &s->io); 948 pci_register_bar(dev, 2, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mm); 949 950 /* most interrupts are not yet emulated but MacOS needs at least VBlank */ 951 dev->config[PCI_INTERRUPT_PIN] = 1; 952 timer_init_ns(&s->vblank_timer, QEMU_CLOCK_VIRTUAL, ati_vga_vblank_irq, s); 953 } 954 955 static void ati_vga_reset(DeviceState *dev) 956 { 957 ATIVGAState *s = ATI_VGA(dev); 958 959 timer_del(&s->vblank_timer); 960 ati_vga_update_irq(s); 961 962 /* reset vga */ 963 vga_common_reset(&s->vga); 964 s->mode = VGA_MODE; 965 } 966 967 static void ati_vga_exit(PCIDevice *dev) 968 { 969 ATIVGAState *s = ATI_VGA(dev); 970 971 timer_del(&s->vblank_timer); 972 graphic_console_close(s->vga.con); 973 } 974 975 static Property ati_vga_properties[] = { 976 DEFINE_PROP_UINT32("vgamem_mb", ATIVGAState, vga.vram_size_mb, 16), 977 DEFINE_PROP_STRING("model", ATIVGAState, model), 978 DEFINE_PROP_UINT16("x-device-id", ATIVGAState, dev_id, 979 PCI_DEVICE_ID_ATI_RAGE128_PF), 980 DEFINE_PROP_BOOL("guest_hwcursor", ATIVGAState, cursor_guest_mode, false), 981 DEFINE_PROP_END_OF_LIST() 982 }; 983 984 static void ati_vga_class_init(ObjectClass *klass, void *data) 985 { 986 DeviceClass *dc = DEVICE_CLASS(klass); 987 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 988 989 dc->reset = ati_vga_reset; 990 device_class_set_props(dc, ati_vga_properties); 991 dc->hotpluggable = false; 992 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); 993 994 k->class_id = PCI_CLASS_DISPLAY_VGA; 995 k->vendor_id = PCI_VENDOR_ID_ATI; 996 k->device_id = PCI_DEVICE_ID_ATI_RAGE128_PF; 997 k->romfile = "vgabios-ati.bin"; 998 k->realize = ati_vga_realize; 999 k->exit = ati_vga_exit; 1000 } 1001 1002 static const TypeInfo ati_vga_info = { 1003 .name = TYPE_ATI_VGA, 1004 .parent = TYPE_PCI_DEVICE, 1005 .instance_size = sizeof(ATIVGAState), 1006 .class_init = ati_vga_class_init, 1007 .interfaces = (InterfaceInfo[]) { 1008 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 1009 { }, 1010 }, 1011 }; 1012 1013 static void ati_vga_register_types(void) 1014 { 1015 type_register_static(&ati_vga_info); 1016 } 1017 1018 type_init(ati_vga_register_types) 1019