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