| 1 | /* |
| 2 | * Copyright 2005-2006 Erik Waling |
| 3 | * Copyright 2006 Stephane Marchesin |
| 4 | * Copyright 2007-2009 Stuart Bennett |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 7 | * copy of this software and associated documentation files (the "Software"), |
| 8 | * to deal in the Software without restriction, including without limitation |
| 9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 10 | * and/or sell copies of the Software, and to permit persons to whom the |
| 11 | * Software is furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 20 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF |
| 21 | * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | |
| 25 | #include <drm/drmP.h> |
| 26 | |
| 27 | #include "nouveau_drm.h" |
| 28 | #include "nouveau_reg.h" |
| 29 | #include "dispnv04/hw.h" |
| 30 | #include "nouveau_encoder.h" |
| 31 | |
| 32 | #include <linux/io-mapping.h> |
| 33 | #include <linux/firmware.h> |
| 34 | |
| 35 | /* these defines are made up */ |
| 36 | #define NV_CIO_CRE_44_HEADA 0x0 |
| 37 | #define NV_CIO_CRE_44_HEADB 0x3 |
| 38 | #define FEATURE_MOBILE 0x10 /* also FEATURE_QUADRO for BMP */ |
| 39 | |
| 40 | #define EDID1_LEN 128 |
| 41 | |
| 42 | #define BIOSLOG(sip, fmt, arg...) NV_DEBUG(sip->dev, fmt, ##arg) |
| 43 | #define LOG_OLD_VALUE(x) |
| 44 | |
| 45 | struct init_exec { |
| 46 | bool execute; |
| 47 | bool repeat; |
| 48 | }; |
| 49 | |
| 50 | static bool nv_cksum(const uint8_t *data, unsigned int length) |
| 51 | { |
| 52 | /* |
| 53 | * There's a few checksums in the BIOS, so here's a generic checking |
| 54 | * function. |
| 55 | */ |
| 56 | int i; |
| 57 | uint8_t sum = 0; |
| 58 | |
| 59 | for (i = 0; i < length; i++) |
| 60 | sum += data[i]; |
| 61 | |
| 62 | if (sum) |
| 63 | return true; |
| 64 | |
| 65 | return false; |
| 66 | } |
| 67 | |
| 68 | static uint16_t clkcmptable(struct nvbios *bios, uint16_t clktable, int pxclk) |
| 69 | { |
| 70 | int compare_record_len, i = 0; |
| 71 | uint16_t compareclk, scriptptr = 0; |
| 72 | |
| 73 | if (bios->major_version < 5) /* pre BIT */ |
| 74 | compare_record_len = 3; |
| 75 | else |
| 76 | compare_record_len = 4; |
| 77 | |
| 78 | do { |
| 79 | compareclk = ROM16(bios->data[clktable + compare_record_len * i]); |
| 80 | if (pxclk >= compareclk * 10) { |
| 81 | if (bios->major_version < 5) { |
| 82 | uint8_t tmdssub = bios->data[clktable + 2 + compare_record_len * i]; |
| 83 | scriptptr = ROM16(bios->data[bios->init_script_tbls_ptr + tmdssub * 2]); |
| 84 | } else |
| 85 | scriptptr = ROM16(bios->data[clktable + 2 + compare_record_len * i]); |
| 86 | break; |
| 87 | } |
| 88 | i++; |
| 89 | } while (compareclk); |
| 90 | |
| 91 | return scriptptr; |
| 92 | } |
| 93 | |
| 94 | static void |
| 95 | run_digital_op_script(struct drm_device *dev, uint16_t scriptptr, |
| 96 | struct dcb_output *dcbent, int head, bool dl) |
| 97 | { |
| 98 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 99 | |
| 100 | NV_INFO(drm, "0x%04X: Parsing digital output script table\n", |
| 101 | scriptptr); |
| 102 | NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_44, head ? NV_CIO_CRE_44_HEADB : |
| 103 | NV_CIO_CRE_44_HEADA); |
| 104 | nouveau_bios_run_init_table(dev, scriptptr, dcbent, head); |
| 105 | |
| 106 | nv04_dfp_bind_head(dev, dcbent, head, dl); |
| 107 | } |
| 108 | |
| 109 | static int call_lvds_manufacturer_script(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script) |
| 110 | { |
| 111 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 112 | struct nvbios *bios = &drm->vbios; |
| 113 | uint8_t sub = bios->data[bios->fp.xlated_entry + script] + (bios->fp.link_c_increment && dcbent->or & DCB_OUTPUT_C ? 1 : 0); |
| 114 | uint16_t scriptofs = ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]); |
| 115 | |
| 116 | if (!bios->fp.xlated_entry || !sub || !scriptofs) |
| 117 | return -EINVAL; |
| 118 | |
| 119 | run_digital_op_script(dev, scriptofs, dcbent, head, bios->fp.dual_link); |
| 120 | |
| 121 | if (script == LVDS_PANEL_OFF) { |
| 122 | /* off-on delay in ms */ |
| 123 | mdelay(ROM16(bios->data[bios->fp.xlated_entry + 7])); |
| 124 | } |
| 125 | #ifdef __powerpc__ |
| 126 | /* Powerbook specific quirks */ |
| 127 | if (script == LVDS_RESET && |
| 128 | (dev->pdev->device == 0x0179 || dev->pdev->device == 0x0189 || |
| 129 | dev->pdev->device == 0x0329)) |
| 130 | nv_write_tmds(dev, dcbent->or, 0, 0x02, 0x72); |
| 131 | #endif |
| 132 | |
| 133 | return 0; |
| 134 | } |
| 135 | |
| 136 | static int run_lvds_table(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script, int pxclk) |
| 137 | { |
| 138 | /* |
| 139 | * The BIT LVDS table's header has the information to setup the |
| 140 | * necessary registers. Following the standard 4 byte header are: |
| 141 | * A bitmask byte and a dual-link transition pxclk value for use in |
| 142 | * selecting the init script when not using straps; 4 script pointers |
| 143 | * for panel power, selected by output and on/off; and 8 table pointers |
| 144 | * for panel init, the needed one determined by output, and bits in the |
| 145 | * conf byte. These tables are similar to the TMDS tables, consisting |
| 146 | * of a list of pxclks and script pointers. |
| 147 | */ |
| 148 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 149 | struct nvbios *bios = &drm->vbios; |
| 150 | unsigned int outputset = (dcbent->or == 4) ? 1 : 0; |
| 151 | uint16_t scriptptr = 0, clktable; |
| 152 | |
| 153 | /* |
| 154 | * For now we assume version 3.0 table - g80 support will need some |
| 155 | * changes |
| 156 | */ |
| 157 | |
| 158 | switch (script) { |
| 159 | case LVDS_INIT: |
| 160 | return -ENOSYS; |
| 161 | case LVDS_BACKLIGHT_ON: |
| 162 | case LVDS_PANEL_ON: |
| 163 | scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 7 + outputset * 2]); |
| 164 | break; |
| 165 | case LVDS_BACKLIGHT_OFF: |
| 166 | case LVDS_PANEL_OFF: |
| 167 | scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 11 + outputset * 2]); |
| 168 | break; |
| 169 | case LVDS_RESET: |
| 170 | clktable = bios->fp.lvdsmanufacturerpointer + 15; |
| 171 | if (dcbent->or == 4) |
| 172 | clktable += 8; |
| 173 | |
| 174 | if (dcbent->lvdsconf.use_straps_for_mode) { |
| 175 | if (bios->fp.dual_link) |
| 176 | clktable += 4; |
| 177 | if (bios->fp.if_is_24bit) |
| 178 | clktable += 2; |
| 179 | } else { |
| 180 | /* using EDID */ |
| 181 | int cmpval_24bit = (dcbent->or == 4) ? 4 : 1; |
| 182 | |
| 183 | if (bios->fp.dual_link) { |
| 184 | clktable += 4; |
| 185 | cmpval_24bit <<= 1; |
| 186 | } |
| 187 | |
| 188 | if (bios->fp.strapless_is_24bit & cmpval_24bit) |
| 189 | clktable += 2; |
| 190 | } |
| 191 | |
| 192 | clktable = ROM16(bios->data[clktable]); |
| 193 | if (!clktable) { |
| 194 | NV_ERROR(drm, "Pixel clock comparison table not found\n"); |
| 195 | return -ENOENT; |
| 196 | } |
| 197 | scriptptr = clkcmptable(bios, clktable, pxclk); |
| 198 | } |
| 199 | |
| 200 | if (!scriptptr) { |
| 201 | NV_ERROR(drm, "LVDS output init script not found\n"); |
| 202 | return -ENOENT; |
| 203 | } |
| 204 | run_digital_op_script(dev, scriptptr, dcbent, head, bios->fp.dual_link); |
| 205 | |
| 206 | return 0; |
| 207 | } |
| 208 | |
| 209 | int call_lvds_script(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script, int pxclk) |
| 210 | { |
| 211 | /* |
| 212 | * LVDS operations are multiplexed in an effort to present a single API |
| 213 | * which works with two vastly differing underlying structures. |
| 214 | * This acts as the demux |
| 215 | */ |
| 216 | |
| 217 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 218 | struct nvif_object *device = &drm->device.object; |
| 219 | struct nvbios *bios = &drm->vbios; |
| 220 | uint8_t lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer]; |
| 221 | uint32_t sel_clk_binding, sel_clk; |
| 222 | int ret; |
| 223 | |
| 224 | if (bios->fp.last_script_invoc == (script << 1 | head) || !lvds_ver || |
| 225 | (lvds_ver >= 0x30 && script == LVDS_INIT)) |
| 226 | return 0; |
| 227 | |
| 228 | if (!bios->fp.lvds_init_run) { |
| 229 | bios->fp.lvds_init_run = true; |
| 230 | call_lvds_script(dev, dcbent, head, LVDS_INIT, pxclk); |
| 231 | } |
| 232 | |
| 233 | if (script == LVDS_PANEL_ON && bios->fp.reset_after_pclk_change) |
| 234 | call_lvds_script(dev, dcbent, head, LVDS_RESET, pxclk); |
| 235 | if (script == LVDS_RESET && bios->fp.power_off_for_reset) |
| 236 | call_lvds_script(dev, dcbent, head, LVDS_PANEL_OFF, pxclk); |
| 237 | |
| 238 | NV_INFO(drm, "Calling LVDS script %d:\n", script); |
| 239 | |
| 240 | /* don't let script change pll->head binding */ |
| 241 | sel_clk_binding = nvif_rd32(device, NV_PRAMDAC_SEL_CLK) & 0x50000; |
| 242 | |
| 243 | if (lvds_ver < 0x30) |
| 244 | ret = call_lvds_manufacturer_script(dev, dcbent, head, script); |
| 245 | else |
| 246 | ret = run_lvds_table(dev, dcbent, head, script, pxclk); |
| 247 | |
| 248 | bios->fp.last_script_invoc = (script << 1 | head); |
| 249 | |
| 250 | sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000; |
| 251 | NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding); |
| 252 | /* some scripts set a value in NV_PBUS_POWERCTRL_2 and break video overlay */ |
| 253 | nvif_wr32(device, NV_PBUS_POWERCTRL_2, 0); |
| 254 | |
| 255 | return ret; |
| 256 | } |
| 257 | |
| 258 | struct lvdstableheader { |
| 259 | uint8_t lvds_ver, headerlen, recordlen; |
| 260 | }; |
| 261 | |
| 262 | static int parse_lvds_manufacturer_table_header(struct drm_device *dev, struct nvbios *bios, struct lvdstableheader *lth) |
| 263 | { |
| 264 | /* |
| 265 | * BMP version (0xa) LVDS table has a simple header of version and |
| 266 | * record length. The BIT LVDS table has the typical BIT table header: |
| 267 | * version byte, header length byte, record length byte, and a byte for |
| 268 | * the maximum number of records that can be held in the table. |
| 269 | */ |
| 270 | |
| 271 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 272 | uint8_t lvds_ver, headerlen, recordlen; |
| 273 | |
| 274 | memset(lth, 0, sizeof(struct lvdstableheader)); |
| 275 | |
| 276 | if (bios->fp.lvdsmanufacturerpointer == 0x0) { |
| 277 | NV_ERROR(drm, "Pointer to LVDS manufacturer table invalid\n"); |
| 278 | return -EINVAL; |
| 279 | } |
| 280 | |
| 281 | lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer]; |
| 282 | |
| 283 | switch (lvds_ver) { |
| 284 | case 0x0a: /* pre NV40 */ |
| 285 | headerlen = 2; |
| 286 | recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1]; |
| 287 | break; |
| 288 | case 0x30: /* NV4x */ |
| 289 | headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1]; |
| 290 | if (headerlen < 0x1f) { |
| 291 | NV_ERROR(drm, "LVDS table header not understood\n"); |
| 292 | return -EINVAL; |
| 293 | } |
| 294 | recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2]; |
| 295 | break; |
| 296 | case 0x40: /* G80/G90 */ |
| 297 | headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1]; |
| 298 | if (headerlen < 0x7) { |
| 299 | NV_ERROR(drm, "LVDS table header not understood\n"); |
| 300 | return -EINVAL; |
| 301 | } |
| 302 | recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2]; |
| 303 | break; |
| 304 | default: |
| 305 | NV_ERROR(drm, |
| 306 | "LVDS table revision %d.%d not currently supported\n", |
| 307 | lvds_ver >> 4, lvds_ver & 0xf); |
| 308 | return -ENOSYS; |
| 309 | } |
| 310 | |
| 311 | lth->lvds_ver = lvds_ver; |
| 312 | lth->headerlen = headerlen; |
| 313 | lth->recordlen = recordlen; |
| 314 | |
| 315 | return 0; |
| 316 | } |
| 317 | |
| 318 | static int |
| 319 | get_fp_strap(struct drm_device *dev, struct nvbios *bios) |
| 320 | { |
| 321 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 322 | struct nvif_object *device = &drm->device.object; |
| 323 | |
| 324 | /* |
| 325 | * The fp strap is normally dictated by the "User Strap" in |
| 326 | * PEXTDEV_BOOT_0[20:16], but on BMP cards when bit 2 of the |
| 327 | * Internal_Flags struct at 0x48 is set, the user strap gets overriden |
| 328 | * by the PCI subsystem ID during POST, but not before the previous user |
| 329 | * strap has been committed to CR58 for CR57=0xf on head A, which may be |
| 330 | * read and used instead |
| 331 | */ |
| 332 | |
| 333 | if (bios->major_version < 5 && bios->data[0x48] & 0x4) |
| 334 | return NVReadVgaCrtc5758(dev, 0, 0xf) & 0xf; |
| 335 | |
| 336 | if (drm->device.info.family >= NV_DEVICE_INFO_V0_MAXWELL) |
| 337 | return nvif_rd32(device, 0x001800) & 0x0000000f; |
| 338 | else |
| 339 | if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) |
| 340 | return (nvif_rd32(device, NV_PEXTDEV_BOOT_0) >> 24) & 0xf; |
| 341 | else |
| 342 | return (nvif_rd32(device, NV_PEXTDEV_BOOT_0) >> 16) & 0xf; |
| 343 | } |
| 344 | |
| 345 | static int parse_fp_mode_table(struct drm_device *dev, struct nvbios *bios) |
| 346 | { |
| 347 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 348 | uint8_t *fptable; |
| 349 | uint8_t fptable_ver, headerlen = 0, recordlen, fpentries = 0xf, fpindex; |
| 350 | int ret, ofs, fpstrapping; |
| 351 | struct lvdstableheader lth; |
| 352 | |
| 353 | if (bios->fp.fptablepointer == 0x0) { |
| 354 | /* Apple cards don't have the fp table; the laptops use DDC */ |
| 355 | /* The table is also missing on some x86 IGPs */ |
| 356 | #ifndef __powerpc__ |
| 357 | NV_ERROR(drm, "Pointer to flat panel table invalid\n"); |
| 358 | #endif |
| 359 | bios->digital_min_front_porch = 0x4b; |
| 360 | return 0; |
| 361 | } |
| 362 | |
| 363 | fptable = &bios->data[bios->fp.fptablepointer]; |
| 364 | fptable_ver = fptable[0]; |
| 365 | |
| 366 | switch (fptable_ver) { |
| 367 | /* |
| 368 | * BMP version 0x5.0x11 BIOSen have version 1 like tables, but no |
| 369 | * version field, and miss one of the spread spectrum/PWM bytes. |
| 370 | * This could affect early GF2Go parts (not seen any appropriate ROMs |
| 371 | * though). Here we assume that a version of 0x05 matches this case |
| 372 | * (combining with a BMP version check would be better), as the |
| 373 | * common case for the panel type field is 0x0005, and that is in |
| 374 | * fact what we are reading the first byte of. |
| 375 | */ |
| 376 | case 0x05: /* some NV10, 11, 15, 16 */ |
| 377 | recordlen = 42; |
| 378 | ofs = -1; |
| 379 | break; |
| 380 | case 0x10: /* some NV15/16, and NV11+ */ |
| 381 | recordlen = 44; |
| 382 | ofs = 0; |
| 383 | break; |
| 384 | case 0x20: /* NV40+ */ |
| 385 | headerlen = fptable[1]; |
| 386 | recordlen = fptable[2]; |
| 387 | fpentries = fptable[3]; |
| 388 | /* |
| 389 | * fptable[4] is the minimum |
| 390 | * RAMDAC_FP_HCRTC -> RAMDAC_FP_HSYNC_START gap |
| 391 | */ |
| 392 | bios->digital_min_front_porch = fptable[4]; |
| 393 | ofs = -7; |
| 394 | break; |
| 395 | default: |
| 396 | NV_ERROR(drm, |
| 397 | "FP table revision %d.%d not currently supported\n", |
| 398 | fptable_ver >> 4, fptable_ver & 0xf); |
| 399 | return -ENOSYS; |
| 400 | } |
| 401 | |
| 402 | if (!bios->is_mobile) /* !mobile only needs digital_min_front_porch */ |
| 403 | return 0; |
| 404 | |
| 405 | ret = parse_lvds_manufacturer_table_header(dev, bios, <h); |
| 406 | if (ret) |
| 407 | return ret; |
| 408 | |
| 409 | if (lth.lvds_ver == 0x30 || lth.lvds_ver == 0x40) { |
| 410 | bios->fp.fpxlatetableptr = bios->fp.lvdsmanufacturerpointer + |
| 411 | lth.headerlen + 1; |
| 412 | bios->fp.xlatwidth = lth.recordlen; |
| 413 | } |
| 414 | if (bios->fp.fpxlatetableptr == 0x0) { |
| 415 | NV_ERROR(drm, "Pointer to flat panel xlat table invalid\n"); |
| 416 | return -EINVAL; |
| 417 | } |
| 418 | |
| 419 | fpstrapping = get_fp_strap(dev, bios); |
| 420 | |
| 421 | fpindex = bios->data[bios->fp.fpxlatetableptr + |
| 422 | fpstrapping * bios->fp.xlatwidth]; |
| 423 | |
| 424 | if (fpindex > fpentries) { |
| 425 | NV_ERROR(drm, "Bad flat panel table index\n"); |
| 426 | return -ENOENT; |
| 427 | } |
| 428 | |
| 429 | /* nv4x cards need both a strap value and fpindex of 0xf to use DDC */ |
| 430 | if (lth.lvds_ver > 0x10) |
| 431 | bios->fp_no_ddc = fpstrapping != 0xf || fpindex != 0xf; |
| 432 | |
| 433 | /* |
| 434 | * If either the strap or xlated fpindex value are 0xf there is no |
| 435 | * panel using a strap-derived bios mode present. this condition |
| 436 | * includes, but is different from, the DDC panel indicator above |
| 437 | */ |
| 438 | if (fpstrapping == 0xf || fpindex == 0xf) |
| 439 | return 0; |
| 440 | |
| 441 | bios->fp.mode_ptr = bios->fp.fptablepointer + headerlen + |
| 442 | recordlen * fpindex + ofs; |
| 443 | |
| 444 | NV_INFO(drm, "BIOS FP mode: %dx%d (%dkHz pixel clock)\n", |
| 445 | ROM16(bios->data[bios->fp.mode_ptr + 11]) + 1, |
| 446 | ROM16(bios->data[bios->fp.mode_ptr + 25]) + 1, |
| 447 | ROM16(bios->data[bios->fp.mode_ptr + 7]) * 10); |
| 448 | |
| 449 | return 0; |
| 450 | } |
| 451 | |
| 452 | bool nouveau_bios_fp_mode(struct drm_device *dev, struct drm_display_mode *mode) |
| 453 | { |
| 454 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 455 | struct nvbios *bios = &drm->vbios; |
| 456 | uint8_t *mode_entry = &bios->data[bios->fp.mode_ptr]; |
| 457 | |
| 458 | if (!mode) /* just checking whether we can produce a mode */ |
| 459 | return bios->fp.mode_ptr; |
| 460 | |
| 461 | memset(mode, 0, sizeof(struct drm_display_mode)); |
| 462 | /* |
| 463 | * For version 1.0 (version in byte 0): |
| 464 | * bytes 1-2 are "panel type", including bits on whether Colour/mono, |
| 465 | * single/dual link, and type (TFT etc.) |
| 466 | * bytes 3-6 are bits per colour in RGBX |
| 467 | */ |
| 468 | mode->clock = ROM16(mode_entry[7]) * 10; |
| 469 | /* bytes 9-10 is HActive */ |
| 470 | mode->hdisplay = ROM16(mode_entry[11]) + 1; |
| 471 | /* |
| 472 | * bytes 13-14 is HValid Start |
| 473 | * bytes 15-16 is HValid End |
| 474 | */ |
| 475 | mode->hsync_start = ROM16(mode_entry[17]) + 1; |
| 476 | mode->hsync_end = ROM16(mode_entry[19]) + 1; |
| 477 | mode->htotal = ROM16(mode_entry[21]) + 1; |
| 478 | /* bytes 23-24, 27-30 similarly, but vertical */ |
| 479 | mode->vdisplay = ROM16(mode_entry[25]) + 1; |
| 480 | mode->vsync_start = ROM16(mode_entry[31]) + 1; |
| 481 | mode->vsync_end = ROM16(mode_entry[33]) + 1; |
| 482 | mode->vtotal = ROM16(mode_entry[35]) + 1; |
| 483 | mode->flags |= (mode_entry[37] & 0x10) ? |
| 484 | DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC; |
| 485 | mode->flags |= (mode_entry[37] & 0x1) ? |
| 486 | DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC; |
| 487 | /* |
| 488 | * bytes 38-39 relate to spread spectrum settings |
| 489 | * bytes 40-43 are something to do with PWM |
| 490 | */ |
| 491 | |
| 492 | mode->status = MODE_OK; |
| 493 | mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; |
| 494 | drm_mode_set_name(mode); |
| 495 | return bios->fp.mode_ptr; |
| 496 | } |
| 497 | |
| 498 | int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, bool *if_is_24bit) |
| 499 | { |
| 500 | /* |
| 501 | * The LVDS table header is (mostly) described in |
| 502 | * parse_lvds_manufacturer_table_header(): the BIT header additionally |
| 503 | * contains the dual-link transition pxclk (in 10s kHz), at byte 5 - if |
| 504 | * straps are not being used for the panel, this specifies the frequency |
| 505 | * at which modes should be set up in the dual link style. |
| 506 | * |
| 507 | * Following the header, the BMP (ver 0xa) table has several records, |
| 508 | * indexed by a separate xlat table, indexed in turn by the fp strap in |
| 509 | * EXTDEV_BOOT. Each record had a config byte, followed by 6 script |
| 510 | * numbers for use by INIT_SUB which controlled panel init and power, |
| 511 | * and finally a dword of ms to sleep between power off and on |
| 512 | * operations. |
| 513 | * |
| 514 | * In the BIT versions, the table following the header serves as an |
| 515 | * integrated config and xlat table: the records in the table are |
| 516 | * indexed by the FP strap nibble in EXTDEV_BOOT, and each record has |
| 517 | * two bytes - the first as a config byte, the second for indexing the |
| 518 | * fp mode table pointed to by the BIT 'D' table |
| 519 | * |
| 520 | * DDC is not used until after card init, so selecting the correct table |
| 521 | * entry and setting the dual link flag for EDID equipped panels, |
| 522 | * requiring tests against the native-mode pixel clock, cannot be done |
| 523 | * until later, when this function should be called with non-zero pxclk |
| 524 | */ |
| 525 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 526 | struct nvbios *bios = &drm->vbios; |
| 527 | int fpstrapping = get_fp_strap(dev, bios), lvdsmanufacturerindex = 0; |
| 528 | struct lvdstableheader lth; |
| 529 | uint16_t lvdsofs; |
| 530 | int ret, chip_version = bios->chip_version; |
| 531 | |
| 532 | ret = parse_lvds_manufacturer_table_header(dev, bios, <h); |
| 533 | if (ret) |
| 534 | return ret; |
| 535 | |
| 536 | switch (lth.lvds_ver) { |
| 537 | case 0x0a: /* pre NV40 */ |
| 538 | lvdsmanufacturerindex = bios->data[ |
| 539 | bios->fp.fpxlatemanufacturertableptr + |
| 540 | fpstrapping]; |
| 541 | |
| 542 | /* we're done if this isn't the EDID panel case */ |
| 543 | if (!pxclk) |
| 544 | break; |
| 545 | |
| 546 | if (chip_version < 0x25) { |
| 547 | /* nv17 behaviour |
| 548 | * |
| 549 | * It seems the old style lvds script pointer is reused |
| 550 | * to select 18/24 bit colour depth for EDID panels. |
| 551 | */ |
| 552 | lvdsmanufacturerindex = |
| 553 | (bios->legacy.lvds_single_a_script_ptr & 1) ? |
| 554 | 2 : 0; |
| 555 | if (pxclk >= bios->fp.duallink_transition_clk) |
| 556 | lvdsmanufacturerindex++; |
| 557 | } else if (chip_version < 0x30) { |
| 558 | /* nv28 behaviour (off-chip encoder) |
| 559 | * |
| 560 | * nv28 does a complex dance of first using byte 121 of |
| 561 | * the EDID to choose the lvdsmanufacturerindex, then |
| 562 | * later attempting to match the EDID manufacturer and |
| 563 | * product IDs in a table (signature 'pidt' (panel id |
| 564 | * table?)), setting an lvdsmanufacturerindex of 0 and |
| 565 | * an fp strap of the match index (or 0xf if none) |
| 566 | */ |
| 567 | lvdsmanufacturerindex = 0; |
| 568 | } else { |
| 569 | /* nv31, nv34 behaviour */ |
| 570 | lvdsmanufacturerindex = 0; |
| 571 | if (pxclk >= bios->fp.duallink_transition_clk) |
| 572 | lvdsmanufacturerindex = 2; |
| 573 | if (pxclk >= 140000) |
| 574 | lvdsmanufacturerindex = 3; |
| 575 | } |
| 576 | |
| 577 | /* |
| 578 | * nvidia set the high nibble of (cr57=f, cr58) to |
| 579 | * lvdsmanufacturerindex in this case; we don't |
| 580 | */ |
| 581 | break; |
| 582 | case 0x30: /* NV4x */ |
| 583 | case 0x40: /* G80/G90 */ |
| 584 | lvdsmanufacturerindex = fpstrapping; |
| 585 | break; |
| 586 | default: |
| 587 | NV_ERROR(drm, "LVDS table revision not currently supported\n"); |
| 588 | return -ENOSYS; |
| 589 | } |
| 590 | |
| 591 | lvdsofs = bios->fp.xlated_entry = bios->fp.lvdsmanufacturerpointer + lth.headerlen + lth.recordlen * lvdsmanufacturerindex; |
| 592 | switch (lth.lvds_ver) { |
| 593 | case 0x0a: |
| 594 | bios->fp.power_off_for_reset = bios->data[lvdsofs] & 1; |
| 595 | bios->fp.reset_after_pclk_change = bios->data[lvdsofs] & 2; |
| 596 | bios->fp.dual_link = bios->data[lvdsofs] & 4; |
| 597 | bios->fp.link_c_increment = bios->data[lvdsofs] & 8; |
| 598 | *if_is_24bit = bios->data[lvdsofs] & 16; |
| 599 | break; |
| 600 | case 0x30: |
| 601 | case 0x40: |
| 602 | /* |
| 603 | * No sign of the "power off for reset" or "reset for panel |
| 604 | * on" bits, but it's safer to assume we should |
| 605 | */ |
| 606 | bios->fp.power_off_for_reset = true; |
| 607 | bios->fp.reset_after_pclk_change = true; |
| 608 | |
| 609 | /* |
| 610 | * It's ok lvdsofs is wrong for nv4x edid case; dual_link is |
| 611 | * over-written, and if_is_24bit isn't used |
| 612 | */ |
| 613 | bios->fp.dual_link = bios->data[lvdsofs] & 1; |
| 614 | bios->fp.if_is_24bit = bios->data[lvdsofs] & 2; |
| 615 | bios->fp.strapless_is_24bit = bios->data[bios->fp.lvdsmanufacturerpointer + 4]; |
| 616 | bios->fp.duallink_transition_clk = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 5]) * 10; |
| 617 | break; |
| 618 | } |
| 619 | |
| 620 | /* set dual_link flag for EDID case */ |
| 621 | if (pxclk && (chip_version < 0x25 || chip_version > 0x28)) |
| 622 | bios->fp.dual_link = (pxclk >= bios->fp.duallink_transition_clk); |
| 623 | |
| 624 | *dl = bios->fp.dual_link; |
| 625 | |
| 626 | return 0; |
| 627 | } |
| 628 | |
| 629 | int run_tmds_table(struct drm_device *dev, struct dcb_output *dcbent, int head, int pxclk) |
| 630 | { |
| 631 | /* |
| 632 | * the pxclk parameter is in kHz |
| 633 | * |
| 634 | * This runs the TMDS regs setting code found on BIT bios cards |
| 635 | * |
| 636 | * For ffs(or) == 1 use the first table, for ffs(or) == 2 and |
| 637 | * ffs(or) == 3, use the second. |
| 638 | */ |
| 639 | |
| 640 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 641 | struct nvif_object *device = &drm->device.object; |
| 642 | struct nvbios *bios = &drm->vbios; |
| 643 | int cv = bios->chip_version; |
| 644 | uint16_t clktable = 0, scriptptr; |
| 645 | uint32_t sel_clk_binding, sel_clk; |
| 646 | |
| 647 | /* pre-nv17 off-chip tmds uses scripts, post nv17 doesn't */ |
| 648 | if (cv >= 0x17 && cv != 0x1a && cv != 0x20 && |
| 649 | dcbent->location != DCB_LOC_ON_CHIP) |
| 650 | return 0; |
| 651 | |
| 652 | switch (ffs(dcbent->or)) { |
| 653 | case 1: |
| 654 | clktable = bios->tmds.output0_script_ptr; |
| 655 | break; |
| 656 | case 2: |
| 657 | case 3: |
| 658 | clktable = bios->tmds.output1_script_ptr; |
| 659 | break; |
| 660 | } |
| 661 | |
| 662 | if (!clktable) { |
| 663 | NV_ERROR(drm, "Pixel clock comparison table not found\n"); |
| 664 | return -EINVAL; |
| 665 | } |
| 666 | |
| 667 | scriptptr = clkcmptable(bios, clktable, pxclk); |
| 668 | |
| 669 | if (!scriptptr) { |
| 670 | NV_ERROR(drm, "TMDS output init script not found\n"); |
| 671 | return -ENOENT; |
| 672 | } |
| 673 | |
| 674 | /* don't let script change pll->head binding */ |
| 675 | sel_clk_binding = nvif_rd32(device, NV_PRAMDAC_SEL_CLK) & 0x50000; |
| 676 | run_digital_op_script(dev, scriptptr, dcbent, head, pxclk >= 165000); |
| 677 | sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000; |
| 678 | NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding); |
| 679 | |
| 680 | return 0; |
| 681 | } |
| 682 | |
| 683 | static void parse_script_table_pointers(struct nvbios *bios, uint16_t offset) |
| 684 | { |
| 685 | /* |
| 686 | * Parses the init table segment for pointers used in script execution. |
| 687 | * |
| 688 | * offset + 0 (16 bits): init script tables pointer |
| 689 | * offset + 2 (16 bits): macro index table pointer |
| 690 | * offset + 4 (16 bits): macro table pointer |
| 691 | * offset + 6 (16 bits): condition table pointer |
| 692 | * offset + 8 (16 bits): io condition table pointer |
| 693 | * offset + 10 (16 bits): io flag condition table pointer |
| 694 | * offset + 12 (16 bits): init function table pointer |
| 695 | */ |
| 696 | |
| 697 | bios->init_script_tbls_ptr = ROM16(bios->data[offset]); |
| 698 | } |
| 699 | |
| 700 | static int parse_bit_A_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) |
| 701 | { |
| 702 | /* |
| 703 | * Parses the load detect values for g80 cards. |
| 704 | * |
| 705 | * offset + 0 (16 bits): loadval table pointer |
| 706 | */ |
| 707 | |
| 708 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 709 | uint16_t load_table_ptr; |
| 710 | uint8_t version, headerlen, entrylen, num_entries; |
| 711 | |
| 712 | if (bitentry->length != 3) { |
| 713 | NV_ERROR(drm, "Do not understand BIT A table\n"); |
| 714 | return -EINVAL; |
| 715 | } |
| 716 | |
| 717 | load_table_ptr = ROM16(bios->data[bitentry->offset]); |
| 718 | |
| 719 | if (load_table_ptr == 0x0) { |
| 720 | NV_DEBUG(drm, "Pointer to BIT loadval table invalid\n"); |
| 721 | return -EINVAL; |
| 722 | } |
| 723 | |
| 724 | version = bios->data[load_table_ptr]; |
| 725 | |
| 726 | if (version != 0x10) { |
| 727 | NV_ERROR(drm, "BIT loadval table version %d.%d not supported\n", |
| 728 | version >> 4, version & 0xF); |
| 729 | return -ENOSYS; |
| 730 | } |
| 731 | |
| 732 | headerlen = bios->data[load_table_ptr + 1]; |
| 733 | entrylen = bios->data[load_table_ptr + 2]; |
| 734 | num_entries = bios->data[load_table_ptr + 3]; |
| 735 | |
| 736 | if (headerlen != 4 || entrylen != 4 || num_entries != 2) { |
| 737 | NV_ERROR(drm, "Do not understand BIT loadval table\n"); |
| 738 | return -EINVAL; |
| 739 | } |
| 740 | |
| 741 | /* First entry is normal dac, 2nd tv-out perhaps? */ |
| 742 | bios->dactestval = ROM32(bios->data[load_table_ptr + headerlen]) & 0x3ff; |
| 743 | |
| 744 | return 0; |
| 745 | } |
| 746 | |
| 747 | static int parse_bit_display_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) |
| 748 | { |
| 749 | /* |
| 750 | * Parses the flat panel table segment that the bit entry points to. |
| 751 | * Starting at bitentry->offset: |
| 752 | * |
| 753 | * offset + 0 (16 bits): ??? table pointer - seems to have 18 byte |
| 754 | * records beginning with a freq. |
| 755 | * offset + 2 (16 bits): mode table pointer |
| 756 | */ |
| 757 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 758 | |
| 759 | if (bitentry->length != 4) { |
| 760 | NV_ERROR(drm, "Do not understand BIT display table\n"); |
| 761 | return -EINVAL; |
| 762 | } |
| 763 | |
| 764 | bios->fp.fptablepointer = ROM16(bios->data[bitentry->offset + 2]); |
| 765 | |
| 766 | return 0; |
| 767 | } |
| 768 | |
| 769 | static int parse_bit_init_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) |
| 770 | { |
| 771 | /* |
| 772 | * Parses the init table segment that the bit entry points to. |
| 773 | * |
| 774 | * See parse_script_table_pointers for layout |
| 775 | */ |
| 776 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 777 | |
| 778 | if (bitentry->length < 14) { |
| 779 | NV_ERROR(drm, "Do not understand init table\n"); |
| 780 | return -EINVAL; |
| 781 | } |
| 782 | |
| 783 | parse_script_table_pointers(bios, bitentry->offset); |
| 784 | return 0; |
| 785 | } |
| 786 | |
| 787 | static int parse_bit_i_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) |
| 788 | { |
| 789 | /* |
| 790 | * BIT 'i' (info?) table |
| 791 | * |
| 792 | * offset + 0 (32 bits): BIOS version dword (as in B table) |
| 793 | * offset + 5 (8 bits): BIOS feature byte (same as for BMP?) |
| 794 | * offset + 13 (16 bits): pointer to table containing DAC load |
| 795 | * detection comparison values |
| 796 | * |
| 797 | * There's other things in the table, purpose unknown |
| 798 | */ |
| 799 | |
| 800 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 801 | uint16_t daccmpoffset; |
| 802 | uint8_t dacver, dacheaderlen; |
| 803 | |
| 804 | if (bitentry->length < 6) { |
| 805 | NV_ERROR(drm, "BIT i table too short for needed information\n"); |
| 806 | return -EINVAL; |
| 807 | } |
| 808 | |
| 809 | /* |
| 810 | * bit 4 seems to indicate a mobile bios (doesn't suffer from BMP's |
| 811 | * Quadro identity crisis), other bits possibly as for BMP feature byte |
| 812 | */ |
| 813 | bios->feature_byte = bios->data[bitentry->offset + 5]; |
| 814 | bios->is_mobile = bios->feature_byte & FEATURE_MOBILE; |
| 815 | |
| 816 | if (bitentry->length < 15) { |
| 817 | NV_WARN(drm, "BIT i table not long enough for DAC load " |
| 818 | "detection comparison table\n"); |
| 819 | return -EINVAL; |
| 820 | } |
| 821 | |
| 822 | daccmpoffset = ROM16(bios->data[bitentry->offset + 13]); |
| 823 | |
| 824 | /* doesn't exist on g80 */ |
| 825 | if (!daccmpoffset) |
| 826 | return 0; |
| 827 | |
| 828 | /* |
| 829 | * The first value in the table, following the header, is the |
| 830 | * comparison value, the second entry is a comparison value for |
| 831 | * TV load detection. |
| 832 | */ |
| 833 | |
| 834 | dacver = bios->data[daccmpoffset]; |
| 835 | dacheaderlen = bios->data[daccmpoffset + 1]; |
| 836 | |
| 837 | if (dacver != 0x00 && dacver != 0x10) { |
| 838 | NV_WARN(drm, "DAC load detection comparison table version " |
| 839 | "%d.%d not known\n", dacver >> 4, dacver & 0xf); |
| 840 | return -ENOSYS; |
| 841 | } |
| 842 | |
| 843 | bios->dactestval = ROM32(bios->data[daccmpoffset + dacheaderlen]); |
| 844 | bios->tvdactestval = ROM32(bios->data[daccmpoffset + dacheaderlen + 4]); |
| 845 | |
| 846 | return 0; |
| 847 | } |
| 848 | |
| 849 | static int parse_bit_lvds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) |
| 850 | { |
| 851 | /* |
| 852 | * Parses the LVDS table segment that the bit entry points to. |
| 853 | * Starting at bitentry->offset: |
| 854 | * |
| 855 | * offset + 0 (16 bits): LVDS strap xlate table pointer |
| 856 | */ |
| 857 | |
| 858 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 859 | |
| 860 | if (bitentry->length != 2) { |
| 861 | NV_ERROR(drm, "Do not understand BIT LVDS table\n"); |
| 862 | return -EINVAL; |
| 863 | } |
| 864 | |
| 865 | /* |
| 866 | * No idea if it's still called the LVDS manufacturer table, but |
| 867 | * the concept's close enough. |
| 868 | */ |
| 869 | bios->fp.lvdsmanufacturerpointer = ROM16(bios->data[bitentry->offset]); |
| 870 | |
| 871 | return 0; |
| 872 | } |
| 873 | |
| 874 | static int |
| 875 | parse_bit_M_tbl_entry(struct drm_device *dev, struct nvbios *bios, |
| 876 | struct bit_entry *bitentry) |
| 877 | { |
| 878 | /* |
| 879 | * offset + 2 (8 bits): number of options in an |
| 880 | * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode option set |
| 881 | * offset + 3 (16 bits): pointer to strap xlate table for RAM |
| 882 | * restrict option selection |
| 883 | * |
| 884 | * There's a bunch of bits in this table other than the RAM restrict |
| 885 | * stuff that we don't use - their use currently unknown |
| 886 | */ |
| 887 | |
| 888 | /* |
| 889 | * Older bios versions don't have a sufficiently long table for |
| 890 | * what we want |
| 891 | */ |
| 892 | if (bitentry->length < 0x5) |
| 893 | return 0; |
| 894 | |
| 895 | if (bitentry->version < 2) { |
| 896 | bios->ram_restrict_group_count = bios->data[bitentry->offset + 2]; |
| 897 | bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 3]); |
| 898 | } else { |
| 899 | bios->ram_restrict_group_count = bios->data[bitentry->offset + 0]; |
| 900 | bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 1]); |
| 901 | } |
| 902 | |
| 903 | return 0; |
| 904 | } |
| 905 | |
| 906 | static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) |
| 907 | { |
| 908 | /* |
| 909 | * Parses the pointer to the TMDS table |
| 910 | * |
| 911 | * Starting at bitentry->offset: |
| 912 | * |
| 913 | * offset + 0 (16 bits): TMDS table pointer |
| 914 | * |
| 915 | * The TMDS table is typically found just before the DCB table, with a |
| 916 | * characteristic signature of 0x11,0x13 (1.1 being version, 0x13 being |
| 917 | * length?) |
| 918 | * |
| 919 | * At offset +7 is a pointer to a script, which I don't know how to |
| 920 | * run yet. |
| 921 | * At offset +9 is a pointer to another script, likewise |
| 922 | * Offset +11 has a pointer to a table where the first word is a pxclk |
| 923 | * frequency and the second word a pointer to a script, which should be |
| 924 | * run if the comparison pxclk frequency is less than the pxclk desired. |
| 925 | * This repeats for decreasing comparison frequencies |
| 926 | * Offset +13 has a pointer to a similar table |
| 927 | * The selection of table (and possibly +7/+9 script) is dictated by |
| 928 | * "or" from the DCB. |
| 929 | */ |
| 930 | |
| 931 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 932 | uint16_t tmdstableptr, script1, script2; |
| 933 | |
| 934 | if (bitentry->length != 2) { |
| 935 | NV_ERROR(drm, "Do not understand BIT TMDS table\n"); |
| 936 | return -EINVAL; |
| 937 | } |
| 938 | |
| 939 | tmdstableptr = ROM16(bios->data[bitentry->offset]); |
| 940 | if (!tmdstableptr) { |
| 941 | NV_ERROR(drm, "Pointer to TMDS table invalid\n"); |
| 942 | return -EINVAL; |
| 943 | } |
| 944 | |
| 945 | NV_INFO(drm, "TMDS table version %d.%d\n", |
| 946 | bios->data[tmdstableptr] >> 4, bios->data[tmdstableptr] & 0xf); |
| 947 | |
| 948 | /* nv50+ has v2.0, but we don't parse it atm */ |
| 949 | if (bios->data[tmdstableptr] != 0x11) |
| 950 | return -ENOSYS; |
| 951 | |
| 952 | /* |
| 953 | * These two scripts are odd: they don't seem to get run even when |
| 954 | * they are not stubbed. |
| 955 | */ |
| 956 | script1 = ROM16(bios->data[tmdstableptr + 7]); |
| 957 | script2 = ROM16(bios->data[tmdstableptr + 9]); |
| 958 | if (bios->data[script1] != 'q' || bios->data[script2] != 'q') |
| 959 | NV_WARN(drm, "TMDS table script pointers not stubbed\n"); |
| 960 | |
| 961 | bios->tmds.output0_script_ptr = ROM16(bios->data[tmdstableptr + 11]); |
| 962 | bios->tmds.output1_script_ptr = ROM16(bios->data[tmdstableptr + 13]); |
| 963 | |
| 964 | return 0; |
| 965 | } |
| 966 | |
| 967 | struct bit_table { |
| 968 | const char id; |
| 969 | int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *); |
| 970 | }; |
| 971 | |
| 972 | #define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry }) |
| 973 | |
| 974 | int |
| 975 | bit_table(struct drm_device *dev, u8 id, struct bit_entry *bit) |
| 976 | { |
| 977 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 978 | struct nvbios *bios = &drm->vbios; |
| 979 | u8 entries, *entry; |
| 980 | |
| 981 | if (bios->type != NVBIOS_BIT) |
| 982 | return -ENODEV; |
| 983 | |
| 984 | entries = bios->data[bios->offset + 10]; |
| 985 | entry = &bios->data[bios->offset + 12]; |
| 986 | while (entries--) { |
| 987 | if (entry[0] == id) { |
| 988 | bit->id = entry[0]; |
| 989 | bit->version = entry[1]; |
| 990 | bit->length = ROM16(entry[2]); |
| 991 | bit->offset = ROM16(entry[4]); |
| 992 | bit->data = ROMPTR(dev, entry[4]); |
| 993 | return 0; |
| 994 | } |
| 995 | |
| 996 | entry += bios->data[bios->offset + 9]; |
| 997 | } |
| 998 | |
| 999 | return -ENOENT; |
| 1000 | } |
| 1001 | |
| 1002 | static int |
| 1003 | parse_bit_table(struct nvbios *bios, const uint16_t bitoffset, |
| 1004 | struct bit_table *table) |
| 1005 | { |
| 1006 | struct drm_device *dev = bios->dev; |
| 1007 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 1008 | struct bit_entry bitentry; |
| 1009 | |
| 1010 | if (bit_table(dev, table->id, &bitentry) == 0) |
| 1011 | return table->parse_fn(dev, bios, &bitentry); |
| 1012 | |
| 1013 | NV_INFO(drm, "BIT table '%c' not found\n", table->id); |
| 1014 | return -ENOSYS; |
| 1015 | } |
| 1016 | |
| 1017 | static int |
| 1018 | parse_bit_structure(struct nvbios *bios, const uint16_t bitoffset) |
| 1019 | { |
| 1020 | int ret; |
| 1021 | |
| 1022 | /* |
| 1023 | * The only restriction on parsing order currently is having 'i' first |
| 1024 | * for use of bios->*_version or bios->feature_byte while parsing; |
| 1025 | * functions shouldn't be actually *doing* anything apart from pulling |
| 1026 | * data from the image into the bios struct, thus no interdependencies |
| 1027 | */ |
| 1028 | ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('i', i)); |
| 1029 | if (ret) /* info? */ |
| 1030 | return ret; |
| 1031 | if (bios->major_version >= 0x60) /* g80+ */ |
| 1032 | parse_bit_table(bios, bitoffset, &BIT_TABLE('A', A)); |
| 1033 | parse_bit_table(bios, bitoffset, &BIT_TABLE('D', display)); |
| 1034 | ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('I', init)); |
| 1035 | if (ret) |
| 1036 | return ret; |
| 1037 | parse_bit_table(bios, bitoffset, &BIT_TABLE('M', M)); /* memory? */ |
| 1038 | parse_bit_table(bios, bitoffset, &BIT_TABLE('L', lvds)); |
| 1039 | parse_bit_table(bios, bitoffset, &BIT_TABLE('T', tmds)); |
| 1040 | |
| 1041 | return 0; |
| 1042 | } |
| 1043 | |
| 1044 | static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsigned int offset) |
| 1045 | { |
| 1046 | /* |
| 1047 | * Parses the BMP structure for useful things, but does not act on them |
| 1048 | * |
| 1049 | * offset + 5: BMP major version |
| 1050 | * offset + 6: BMP minor version |
| 1051 | * offset + 9: BMP feature byte |
| 1052 | * offset + 10: BCD encoded BIOS version |
| 1053 | * |
| 1054 | * offset + 18: init script table pointer (for bios versions < 5.10h) |
| 1055 | * offset + 20: extra init script table pointer (for bios |
| 1056 | * versions < 5.10h) |
| 1057 | * |
| 1058 | * offset + 24: memory init table pointer (used on early bios versions) |
| 1059 | * offset + 26: SDR memory sequencing setup data table |
| 1060 | * offset + 28: DDR memory sequencing setup data table |
| 1061 | * |
| 1062 | * offset + 54: index of I2C CRTC pair to use for CRT output |
| 1063 | * offset + 55: index of I2C CRTC pair to use for TV output |
| 1064 | * offset + 56: index of I2C CRTC pair to use for flat panel output |
| 1065 | * offset + 58: write CRTC index for I2C pair 0 |
| 1066 | * offset + 59: read CRTC index for I2C pair 0 |
| 1067 | * offset + 60: write CRTC index for I2C pair 1 |
| 1068 | * offset + 61: read CRTC index for I2C pair 1 |
| 1069 | * |
| 1070 | * offset + 67: maximum internal PLL frequency (single stage PLL) |
| 1071 | * offset + 71: minimum internal PLL frequency (single stage PLL) |
| 1072 | * |
| 1073 | * offset + 75: script table pointers, as described in |
| 1074 | * parse_script_table_pointers |
| 1075 | * |
| 1076 | * offset + 89: TMDS single link output A table pointer |
| 1077 | * offset + 91: TMDS single link output B table pointer |
| 1078 | * offset + 95: LVDS single link output A table pointer |
| 1079 | * offset + 105: flat panel timings table pointer |
| 1080 | * offset + 107: flat panel strapping translation table pointer |
| 1081 | * offset + 117: LVDS manufacturer panel config table pointer |
| 1082 | * offset + 119: LVDS manufacturer strapping translation table pointer |
| 1083 | * |
| 1084 | * offset + 142: PLL limits table pointer |
| 1085 | * |
| 1086 | * offset + 156: minimum pixel clock for LVDS dual link |
| 1087 | */ |
| 1088 | |
| 1089 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 1090 | uint8_t *bmp = &bios->data[offset], bmp_version_major, bmp_version_minor; |
| 1091 | uint16_t bmplength; |
| 1092 | uint16_t legacy_scripts_offset, legacy_i2c_offset; |
| 1093 | |
| 1094 | /* load needed defaults in case we can't parse this info */ |
| 1095 | bios->digital_min_front_porch = 0x4b; |
| 1096 | bios->fmaxvco = 256000; |
| 1097 | bios->fminvco = 128000; |
| 1098 | bios->fp.duallink_transition_clk = 90000; |
| 1099 | |
| 1100 | bmp_version_major = bmp[5]; |
| 1101 | bmp_version_minor = bmp[6]; |
| 1102 | |
| 1103 | NV_INFO(drm, "BMP version %d.%d\n", |
| 1104 | bmp_version_major, bmp_version_minor); |
| 1105 | |
| 1106 | /* |
| 1107 | * Make sure that 0x36 is blank and can't be mistaken for a DCB |
| 1108 | * pointer on early versions |
| 1109 | */ |
| 1110 | if (bmp_version_major < 5) |
| 1111 | *(uint16_t *)&bios->data[0x36] = 0; |
| 1112 | |
| 1113 | /* |
| 1114 | * Seems that the minor version was 1 for all major versions prior |
| 1115 | * to 5. Version 6 could theoretically exist, but I suspect BIT |
| 1116 | * happened instead. |
| 1117 | */ |
| 1118 | if ((bmp_version_major < 5 && bmp_version_minor != 1) || bmp_version_major > 5) { |
| 1119 | NV_ERROR(drm, "You have an unsupported BMP version. " |
| 1120 | "Please send in your bios\n"); |
| 1121 | return -ENOSYS; |
| 1122 | } |
| 1123 | |
| 1124 | if (bmp_version_major == 0) |
| 1125 | /* nothing that's currently useful in this version */ |
| 1126 | return 0; |
| 1127 | else if (bmp_version_major == 1) |
| 1128 | bmplength = 44; /* exact for 1.01 */ |
| 1129 | else if (bmp_version_major == 2) |
| 1130 | bmplength = 48; /* exact for 2.01 */ |
| 1131 | else if (bmp_version_major == 3) |
| 1132 | bmplength = 54; |
| 1133 | /* guessed - mem init tables added in this version */ |
| 1134 | else if (bmp_version_major == 4 || bmp_version_minor < 0x1) |
| 1135 | /* don't know if 5.0 exists... */ |
| 1136 | bmplength = 62; |
| 1137 | /* guessed - BMP I2C indices added in version 4*/ |
| 1138 | else if (bmp_version_minor < 0x6) |
| 1139 | bmplength = 67; /* exact for 5.01 */ |
| 1140 | else if (bmp_version_minor < 0x10) |
| 1141 | bmplength = 75; /* exact for 5.06 */ |
| 1142 | else if (bmp_version_minor == 0x10) |
| 1143 | bmplength = 89; /* exact for 5.10h */ |
| 1144 | else if (bmp_version_minor < 0x14) |
| 1145 | bmplength = 118; /* exact for 5.11h */ |
| 1146 | else if (bmp_version_minor < 0x24) |
| 1147 | /* |
| 1148 | * Not sure of version where pll limits came in; |
| 1149 | * certainly exist by 0x24 though. |
| 1150 | */ |
| 1151 | /* length not exact: this is long enough to get lvds members */ |
| 1152 | bmplength = 123; |
| 1153 | else if (bmp_version_minor < 0x27) |
| 1154 | /* |
| 1155 | * Length not exact: this is long enough to get pll limit |
| 1156 | * member |
| 1157 | */ |
| 1158 | bmplength = 144; |
| 1159 | else |
| 1160 | /* |
| 1161 | * Length not exact: this is long enough to get dual link |
| 1162 | * transition clock. |
| 1163 | */ |
| 1164 | bmplength = 158; |
| 1165 | |
| 1166 | /* checksum */ |
| 1167 | if (nv_cksum(bmp, 8)) { |
| 1168 | NV_ERROR(drm, "Bad BMP checksum\n"); |
| 1169 | return -EINVAL; |
| 1170 | } |
| 1171 | |
| 1172 | /* |
| 1173 | * Bit 4 seems to indicate either a mobile bios or a quadro card -- |
| 1174 | * mobile behaviour consistent (nv11+), quadro only seen nv18gl-nv36gl |
| 1175 | * (not nv10gl), bit 5 that the flat panel tables are present, and |
| 1176 | * bit 6 a tv bios. |
| 1177 | */ |
| 1178 | bios->feature_byte = bmp[9]; |
| 1179 | |
| 1180 | if (bmp_version_major < 5 || bmp_version_minor < 0x10) |
| 1181 | bios->old_style_init = true; |
| 1182 | legacy_scripts_offset = 18; |
| 1183 | if (bmp_version_major < 2) |
| 1184 | legacy_scripts_offset -= 4; |
| 1185 | bios->init_script_tbls_ptr = ROM16(bmp[legacy_scripts_offset]); |
| 1186 | bios->extra_init_script_tbl_ptr = ROM16(bmp[legacy_scripts_offset + 2]); |
| 1187 | |
| 1188 | if (bmp_version_major > 2) { /* appears in BMP 3 */ |
| 1189 | bios->legacy.mem_init_tbl_ptr = ROM16(bmp[24]); |
| 1190 | bios->legacy.sdr_seq_tbl_ptr = ROM16(bmp[26]); |
| 1191 | bios->legacy.ddr_seq_tbl_ptr = ROM16(bmp[28]); |
| 1192 | } |
| 1193 | |
| 1194 | legacy_i2c_offset = 0x48; /* BMP version 2 & 3 */ |
| 1195 | if (bmplength > 61) |
| 1196 | legacy_i2c_offset = offset + 54; |
| 1197 | bios->legacy.i2c_indices.crt = bios->data[legacy_i2c_offset]; |
| 1198 | bios->legacy.i2c_indices.tv = bios->data[legacy_i2c_offset + 1]; |
| 1199 | bios->legacy.i2c_indices.panel = bios->data[legacy_i2c_offset + 2]; |
| 1200 | |
| 1201 | if (bmplength > 74) { |
| 1202 | bios->fmaxvco = ROM32(bmp[67]); |
| 1203 | bios->fminvco = ROM32(bmp[71]); |
| 1204 | } |
| 1205 | if (bmplength > 88) |
| 1206 | parse_script_table_pointers(bios, offset + 75); |
| 1207 | if (bmplength > 94) { |
| 1208 | bios->tmds.output0_script_ptr = ROM16(bmp[89]); |
| 1209 | bios->tmds.output1_script_ptr = ROM16(bmp[91]); |
| 1210 | /* |
| 1211 | * Never observed in use with lvds scripts, but is reused for |
| 1212 | * 18/24 bit panel interface default for EDID equipped panels |
| 1213 | * (if_is_24bit not set directly to avoid any oscillation). |
| 1214 | */ |
| 1215 | bios->legacy.lvds_single_a_script_ptr = ROM16(bmp[95]); |
| 1216 | } |
| 1217 | if (bmplength > 108) { |
| 1218 | bios->fp.fptablepointer = ROM16(bmp[105]); |
| 1219 | bios->fp.fpxlatetableptr = ROM16(bmp[107]); |
| 1220 | bios->fp.xlatwidth = 1; |
| 1221 | } |
| 1222 | if (bmplength > 120) { |
| 1223 | bios->fp.lvdsmanufacturerpointer = ROM16(bmp[117]); |
| 1224 | bios->fp.fpxlatemanufacturertableptr = ROM16(bmp[119]); |
| 1225 | } |
| 1226 | #if 0 |
| 1227 | if (bmplength > 143) |
| 1228 | bios->pll_limit_tbl_ptr = ROM16(bmp[142]); |
| 1229 | #endif |
| 1230 | |
| 1231 | if (bmplength > 157) |
| 1232 | bios->fp.duallink_transition_clk = ROM16(bmp[156]) * 10; |
| 1233 | |
| 1234 | return 0; |
| 1235 | } |
| 1236 | |
| 1237 | static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len) |
| 1238 | { |
| 1239 | int i, j; |
| 1240 | |
| 1241 | for (i = 0; i <= (n - len); i++) { |
| 1242 | for (j = 0; j < len; j++) |
| 1243 | if (data[i + j] != str[j]) |
| 1244 | break; |
| 1245 | if (j == len) |
| 1246 | return i; |
| 1247 | } |
| 1248 | |
| 1249 | return 0; |
| 1250 | } |
| 1251 | |
| 1252 | void * |
| 1253 | olddcb_table(struct drm_device *dev) |
| 1254 | { |
| 1255 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 1256 | u8 *dcb = NULL; |
| 1257 | |
| 1258 | if (drm->device.info.family > NV_DEVICE_INFO_V0_TNT) |
| 1259 | dcb = ROMPTR(dev, drm->vbios.data[0x36]); |
| 1260 | if (!dcb) { |
| 1261 | NV_WARN(drm, "No DCB data found in VBIOS\n"); |
| 1262 | return NULL; |
| 1263 | } |
| 1264 | |
| 1265 | if (dcb[0] >= 0x42) { |
| 1266 | NV_WARN(drm, "DCB version 0x%02x unknown\n", dcb[0]); |
| 1267 | return NULL; |
| 1268 | } else |
| 1269 | if (dcb[0] >= 0x30) { |
| 1270 | if (ROM32(dcb[6]) == 0x4edcbdcb) |
| 1271 | return dcb; |
| 1272 | } else |
| 1273 | if (dcb[0] >= 0x20) { |
| 1274 | if (ROM32(dcb[4]) == 0x4edcbdcb) |
| 1275 | return dcb; |
| 1276 | } else |
| 1277 | if (dcb[0] >= 0x15) { |
| 1278 | if (!memcmp(&dcb[-7], "DEV_REC", 7)) |
| 1279 | return dcb; |
| 1280 | } else { |
| 1281 | /* |
| 1282 | * v1.4 (some NV15/16, NV11+) seems the same as v1.5, but |
| 1283 | * always has the same single (crt) entry, even when tv-out |
| 1284 | * present, so the conclusion is this version cannot really |
| 1285 | * be used. |
| 1286 | * |
| 1287 | * v1.2 tables (some NV6/10, and NV15+) normally have the |
| 1288 | * same 5 entries, which are not specific to the card and so |
| 1289 | * no use. |
| 1290 | * |
| 1291 | * v1.2 does have an I2C table that read_dcb_i2c_table can |
| 1292 | * handle, but cards exist (nv11 in #14821) with a bad i2c |
| 1293 | * table pointer, so use the indices parsed in |
| 1294 | * parse_bmp_structure. |
| 1295 | * |
| 1296 | * v1.1 (NV5+, maybe some NV4) is entirely unhelpful |
| 1297 | */ |
| 1298 | NV_WARN(drm, "No useful DCB data in VBIOS\n"); |
| 1299 | return NULL; |
| 1300 | } |
| 1301 | |
| 1302 | NV_WARN(drm, "DCB header validation failed\n"); |
| 1303 | return NULL; |
| 1304 | } |
| 1305 | |
| 1306 | void * |
| 1307 | olddcb_outp(struct drm_device *dev, u8 idx) |
| 1308 | { |
| 1309 | u8 *dcb = olddcb_table(dev); |
| 1310 | if (dcb && dcb[0] >= 0x30) { |
| 1311 | if (idx < dcb[2]) |
| 1312 | return dcb + dcb[1] + (idx * dcb[3]); |
| 1313 | } else |
| 1314 | if (dcb && dcb[0] >= 0x20) { |
| 1315 | u8 *i2c = ROMPTR(dev, dcb[2]); |
| 1316 | u8 *ent = dcb + 8 + (idx * 8); |
| 1317 | if (i2c && ent < i2c) |
| 1318 | return ent; |
| 1319 | } else |
| 1320 | if (dcb && dcb[0] >= 0x15) { |
| 1321 | u8 *i2c = ROMPTR(dev, dcb[2]); |
| 1322 | u8 *ent = dcb + 4 + (idx * 10); |
| 1323 | if (i2c && ent < i2c) |
| 1324 | return ent; |
| 1325 | } |
| 1326 | |
| 1327 | return NULL; |
| 1328 | } |
| 1329 | |
| 1330 | int |
| 1331 | olddcb_outp_foreach(struct drm_device *dev, void *data, |
| 1332 | int (*exec)(struct drm_device *, void *, int idx, u8 *outp)) |
| 1333 | { |
| 1334 | int ret, idx = -1; |
| 1335 | u8 *outp = NULL; |
| 1336 | while ((outp = olddcb_outp(dev, ++idx))) { |
| 1337 | if (ROM32(outp[0]) == 0x00000000) |
| 1338 | break; /* seen on an NV11 with DCB v1.5 */ |
| 1339 | if (ROM32(outp[0]) == 0xffffffff) |
| 1340 | break; /* seen on an NV17 with DCB v2.0 */ |
| 1341 | |
| 1342 | if ((outp[0] & 0x0f) == DCB_OUTPUT_UNUSED) |
| 1343 | continue; |
| 1344 | if ((outp[0] & 0x0f) == DCB_OUTPUT_EOL) |
| 1345 | break; |
| 1346 | |
| 1347 | ret = exec(dev, data, idx, outp); |
| 1348 | if (ret) |
| 1349 | return ret; |
| 1350 | } |
| 1351 | |
| 1352 | return 0; |
| 1353 | } |
| 1354 | |
| 1355 | u8 * |
| 1356 | olddcb_conntab(struct drm_device *dev) |
| 1357 | { |
| 1358 | u8 *dcb = olddcb_table(dev); |
| 1359 | if (dcb && dcb[0] >= 0x30 && dcb[1] >= 0x16) { |
| 1360 | u8 *conntab = ROMPTR(dev, dcb[0x14]); |
| 1361 | if (conntab && conntab[0] >= 0x30 && conntab[0] <= 0x40) |
| 1362 | return conntab; |
| 1363 | } |
| 1364 | return NULL; |
| 1365 | } |
| 1366 | |
| 1367 | u8 * |
| 1368 | olddcb_conn(struct drm_device *dev, u8 idx) |
| 1369 | { |
| 1370 | u8 *conntab = olddcb_conntab(dev); |
| 1371 | if (conntab && idx < conntab[2]) |
| 1372 | return conntab + conntab[1] + (idx * conntab[3]); |
| 1373 | return NULL; |
| 1374 | } |
| 1375 | |
| 1376 | static struct dcb_output *new_dcb_entry(struct dcb_table *dcb) |
| 1377 | { |
| 1378 | struct dcb_output *entry = &dcb->entry[dcb->entries]; |
| 1379 | |
| 1380 | memset(entry, 0, sizeof(struct dcb_output)); |
| 1381 | entry->index = dcb->entries++; |
| 1382 | |
| 1383 | return entry; |
| 1384 | } |
| 1385 | |
| 1386 | static void fabricate_dcb_output(struct dcb_table *dcb, int type, int i2c, |
| 1387 | int heads, int or) |
| 1388 | { |
| 1389 | struct dcb_output *entry = new_dcb_entry(dcb); |
| 1390 | |
| 1391 | entry->type = type; |
| 1392 | entry->i2c_index = i2c; |
| 1393 | entry->heads = heads; |
| 1394 | if (type != DCB_OUTPUT_ANALOG) |
| 1395 | entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */ |
| 1396 | entry->or = or; |
| 1397 | } |
| 1398 | |
| 1399 | static bool |
| 1400 | parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb, |
| 1401 | uint32_t conn, uint32_t conf, struct dcb_output *entry) |
| 1402 | { |
| 1403 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 1404 | int link = 0; |
| 1405 | |
| 1406 | entry->type = conn & 0xf; |
| 1407 | entry->i2c_index = (conn >> 4) & 0xf; |
| 1408 | entry->heads = (conn >> 8) & 0xf; |
| 1409 | entry->connector = (conn >> 12) & 0xf; |
| 1410 | entry->bus = (conn >> 16) & 0xf; |
| 1411 | entry->location = (conn >> 20) & 0x3; |
| 1412 | entry->or = (conn >> 24) & 0xf; |
| 1413 | |
| 1414 | switch (entry->type) { |
| 1415 | case DCB_OUTPUT_ANALOG: |
| 1416 | /* |
| 1417 | * Although the rest of a CRT conf dword is usually |
| 1418 | * zeros, mac biosen have stuff there so we must mask |
| 1419 | */ |
| 1420 | entry->crtconf.maxfreq = (dcb->version < 0x30) ? |
| 1421 | (conf & 0xffff) * 10 : |
| 1422 | (conf & 0xff) * 10000; |
| 1423 | break; |
| 1424 | case DCB_OUTPUT_LVDS: |
| 1425 | { |
| 1426 | uint32_t mask; |
| 1427 | if (conf & 0x1) |
| 1428 | entry->lvdsconf.use_straps_for_mode = true; |
| 1429 | if (dcb->version < 0x22) { |
| 1430 | mask = ~0xd; |
| 1431 | /* |
| 1432 | * The laptop in bug 14567 lies and claims to not use |
| 1433 | * straps when it does, so assume all DCB 2.0 laptops |
| 1434 | * use straps, until a broken EDID using one is produced |
| 1435 | */ |
| 1436 | entry->lvdsconf.use_straps_for_mode = true; |
| 1437 | /* |
| 1438 | * Both 0x4 and 0x8 show up in v2.0 tables; assume they |
| 1439 | * mean the same thing (probably wrong, but might work) |
| 1440 | */ |
| 1441 | if (conf & 0x4 || conf & 0x8) |
| 1442 | entry->lvdsconf.use_power_scripts = true; |
| 1443 | } else { |
| 1444 | mask = ~0x7; |
| 1445 | if (conf & 0x2) |
| 1446 | entry->lvdsconf.use_acpi_for_edid = true; |
| 1447 | if (conf & 0x4) |
| 1448 | entry->lvdsconf.use_power_scripts = true; |
| 1449 | entry->lvdsconf.sor.link = (conf & 0x00000030) >> 4; |
| 1450 | link = entry->lvdsconf.sor.link; |
| 1451 | } |
| 1452 | if (conf & mask) { |
| 1453 | /* |
| 1454 | * Until we even try to use these on G8x, it's |
| 1455 | * useless reporting unknown bits. They all are. |
| 1456 | */ |
| 1457 | if (dcb->version >= 0x40) |
| 1458 | break; |
| 1459 | |
| 1460 | NV_ERROR(drm, "Unknown LVDS configuration bits, " |
| 1461 | "please report\n"); |
| 1462 | } |
| 1463 | break; |
| 1464 | } |
| 1465 | case DCB_OUTPUT_TV: |
| 1466 | { |
| 1467 | if (dcb->version >= 0x30) |
| 1468 | entry->tvconf.has_component_output = conf & (0x8 << 4); |
| 1469 | else |
| 1470 | entry->tvconf.has_component_output = false; |
| 1471 | |
| 1472 | break; |
| 1473 | } |
| 1474 | case DCB_OUTPUT_DP: |
| 1475 | entry->dpconf.sor.link = (conf & 0x00000030) >> 4; |
| 1476 | entry->extdev = (conf & 0x0000ff00) >> 8; |
| 1477 | switch ((conf & 0x00e00000) >> 21) { |
| 1478 | case 0: |
| 1479 | entry->dpconf.link_bw = 162000; |
| 1480 | break; |
| 1481 | case 1: |
| 1482 | entry->dpconf.link_bw = 270000; |
| 1483 | break; |
| 1484 | default: |
| 1485 | entry->dpconf.link_bw = 540000; |
| 1486 | break; |
| 1487 | } |
| 1488 | switch ((conf & 0x0f000000) >> 24) { |
| 1489 | case 0xf: |
| 1490 | case 0x4: |
| 1491 | entry->dpconf.link_nr = 4; |
| 1492 | break; |
| 1493 | case 0x3: |
| 1494 | case 0x2: |
| 1495 | entry->dpconf.link_nr = 2; |
| 1496 | break; |
| 1497 | default: |
| 1498 | entry->dpconf.link_nr = 1; |
| 1499 | break; |
| 1500 | } |
| 1501 | link = entry->dpconf.sor.link; |
| 1502 | break; |
| 1503 | case DCB_OUTPUT_TMDS: |
| 1504 | if (dcb->version >= 0x40) { |
| 1505 | entry->tmdsconf.sor.link = (conf & 0x00000030) >> 4; |
| 1506 | entry->extdev = (conf & 0x0000ff00) >> 8; |
| 1507 | link = entry->tmdsconf.sor.link; |
| 1508 | } |
| 1509 | else if (dcb->version >= 0x30) |
| 1510 | entry->tmdsconf.slave_addr = (conf & 0x00000700) >> 8; |
| 1511 | else if (dcb->version >= 0x22) |
| 1512 | entry->tmdsconf.slave_addr = (conf & 0x00000070) >> 4; |
| 1513 | break; |
| 1514 | case DCB_OUTPUT_EOL: |
| 1515 | /* weird g80 mobile type that "nv" treats as a terminator */ |
| 1516 | dcb->entries--; |
| 1517 | return false; |
| 1518 | default: |
| 1519 | break; |
| 1520 | } |
| 1521 | |
| 1522 | if (dcb->version < 0x40) { |
| 1523 | /* Normal entries consist of a single bit, but dual link has |
| 1524 | * the next most significant bit set too |
| 1525 | */ |
| 1526 | entry->duallink_possible = |
| 1527 | ((1 << (ffs(entry->or) - 1)) * 3 == entry->or); |
| 1528 | } else { |
| 1529 | entry->duallink_possible = (entry->sorconf.link == 3); |
| 1530 | } |
| 1531 | |
| 1532 | /* unsure what DCB version introduces this, 3.0? */ |
| 1533 | if (conf & 0x100000) |
| 1534 | entry->i2c_upper_default = true; |
| 1535 | |
| 1536 | entry->hasht = (entry->location << 4) | entry->type; |
| 1537 | entry->hashm = (entry->heads << 8) | (link << 6) | entry->or; |
| 1538 | return true; |
| 1539 | } |
| 1540 | |
| 1541 | static bool |
| 1542 | parse_dcb15_entry(struct drm_device *dev, struct dcb_table *dcb, |
| 1543 | uint32_t conn, uint32_t conf, struct dcb_output *entry) |
| 1544 | { |
| 1545 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 1546 | |
| 1547 | switch (conn & 0x0000000f) { |
| 1548 | case 0: |
| 1549 | entry->type = DCB_OUTPUT_ANALOG; |
| 1550 | break; |
| 1551 | case 1: |
| 1552 | entry->type = DCB_OUTPUT_TV; |
| 1553 | break; |
| 1554 | case 2: |
| 1555 | case 4: |
| 1556 | if (conn & 0x10) |
| 1557 | entry->type = DCB_OUTPUT_LVDS; |
| 1558 | else |
| 1559 | entry->type = DCB_OUTPUT_TMDS; |
| 1560 | break; |
| 1561 | case 3: |
| 1562 | entry->type = DCB_OUTPUT_LVDS; |
| 1563 | break; |
| 1564 | default: |
| 1565 | NV_ERROR(drm, "Unknown DCB type %d\n", conn & 0x0000000f); |
| 1566 | return false; |
| 1567 | } |
| 1568 | |
| 1569 | entry->i2c_index = (conn & 0x0003c000) >> 14; |
| 1570 | entry->heads = ((conn & 0x001c0000) >> 18) + 1; |
| 1571 | entry->or = entry->heads; /* same as heads, hopefully safe enough */ |
| 1572 | entry->location = (conn & 0x01e00000) >> 21; |
| 1573 | entry->bus = (conn & 0x0e000000) >> 25; |
| 1574 | entry->duallink_possible = false; |
| 1575 | |
| 1576 | switch (entry->type) { |
| 1577 | case DCB_OUTPUT_ANALOG: |
| 1578 | entry->crtconf.maxfreq = (conf & 0xffff) * 10; |
| 1579 | break; |
| 1580 | case DCB_OUTPUT_TV: |
| 1581 | entry->tvconf.has_component_output = false; |
| 1582 | break; |
| 1583 | case DCB_OUTPUT_LVDS: |
| 1584 | if ((conn & 0x00003f00) >> 8 != 0x10) |
| 1585 | entry->lvdsconf.use_straps_for_mode = true; |
| 1586 | entry->lvdsconf.use_power_scripts = true; |
| 1587 | break; |
| 1588 | default: |
| 1589 | break; |
| 1590 | } |
| 1591 | |
| 1592 | return true; |
| 1593 | } |
| 1594 | |
| 1595 | static |
| 1596 | void merge_like_dcb_entries(struct drm_device *dev, struct dcb_table *dcb) |
| 1597 | { |
| 1598 | /* |
| 1599 | * DCB v2.0 lists each output combination separately. |
| 1600 | * Here we merge compatible entries to have fewer outputs, with |
| 1601 | * more options |
| 1602 | */ |
| 1603 | |
| 1604 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 1605 | int i, newentries = 0; |
| 1606 | |
| 1607 | for (i = 0; i < dcb->entries; i++) { |
| 1608 | struct dcb_output *ient = &dcb->entry[i]; |
| 1609 | int j; |
| 1610 | |
| 1611 | for (j = i + 1; j < dcb->entries; j++) { |
| 1612 | struct dcb_output *jent = &dcb->entry[j]; |
| 1613 | |
| 1614 | if (jent->type == 100) /* already merged entry */ |
| 1615 | continue; |
| 1616 | |
| 1617 | /* merge heads field when all other fields the same */ |
| 1618 | if (jent->i2c_index == ient->i2c_index && |
| 1619 | jent->type == ient->type && |
| 1620 | jent->location == ient->location && |
| 1621 | jent->or == ient->or) { |
| 1622 | NV_INFO(drm, "Merging DCB entries %d and %d\n", |
| 1623 | i, j); |
| 1624 | ient->heads |= jent->heads; |
| 1625 | jent->type = 100; /* dummy value */ |
| 1626 | } |
| 1627 | } |
| 1628 | } |
| 1629 | |
| 1630 | /* Compact entries merged into others out of dcb */ |
| 1631 | for (i = 0; i < dcb->entries; i++) { |
| 1632 | if (dcb->entry[i].type == 100) |
| 1633 | continue; |
| 1634 | |
| 1635 | if (newentries != i) { |
| 1636 | dcb->entry[newentries] = dcb->entry[i]; |
| 1637 | dcb->entry[newentries].index = newentries; |
| 1638 | } |
| 1639 | newentries++; |
| 1640 | } |
| 1641 | |
| 1642 | dcb->entries = newentries; |
| 1643 | } |
| 1644 | |
| 1645 | static bool |
| 1646 | apply_dcb_encoder_quirks(struct drm_device *dev, int idx, u32 *conn, u32 *conf) |
| 1647 | { |
| 1648 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 1649 | struct dcb_table *dcb = &drm->vbios.dcb; |
| 1650 | |
| 1651 | /* Dell Precision M6300 |
| 1652 | * DCB entry 2: 02025312 00000010 |
| 1653 | * DCB entry 3: 02026312 00000020 |
| 1654 | * |
| 1655 | * Identical, except apparently a different connector on a |
| 1656 | * different SOR link. Not a clue how we're supposed to know |
| 1657 | * which one is in use if it even shares an i2c line... |
| 1658 | * |
| 1659 | * Ignore the connector on the second SOR link to prevent |
| 1660 | * nasty problems until this is sorted (assuming it's not a |
| 1661 | * VBIOS bug). |
| 1662 | */ |
| 1663 | if (nv_match_device(dev, 0x040d, 0x1028, 0x019b)) { |
| 1664 | if (*conn == 0x02026312 && *conf == 0x00000020) |
| 1665 | return false; |
| 1666 | } |
| 1667 | |
| 1668 | /* GeForce3 Ti 200 |
| 1669 | * |
| 1670 | * DCB reports an LVDS output that should be TMDS: |
| 1671 | * DCB entry 1: f2005014 ffffffff |
| 1672 | */ |
| 1673 | if (nv_match_device(dev, 0x0201, 0x1462, 0x8851)) { |
| 1674 | if (*conn == 0xf2005014 && *conf == 0xffffffff) { |
| 1675 | fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, 1, 1); |
| 1676 | return false; |
| 1677 | } |
| 1678 | } |
| 1679 | |
| 1680 | /* XFX GT-240X-YA |
| 1681 | * |
| 1682 | * So many things wrong here, replace the entire encoder table.. |
| 1683 | */ |
| 1684 | if (nv_match_device(dev, 0x0ca3, 0x1682, 0x3003)) { |
| 1685 | if (idx == 0) { |
| 1686 | *conn = 0x02001300; /* VGA, connector 1 */ |
| 1687 | *conf = 0x00000028; |
| 1688 | } else |
| 1689 | if (idx == 1) { |
| 1690 | *conn = 0x01010312; /* DVI, connector 0 */ |
| 1691 | *conf = 0x00020030; |
| 1692 | } else |
| 1693 | if (idx == 2) { |
| 1694 | *conn = 0x01010310; /* VGA, connector 0 */ |
| 1695 | *conf = 0x00000028; |
| 1696 | } else |
| 1697 | if (idx == 3) { |
| 1698 | *conn = 0x02022362; /* HDMI, connector 2 */ |
| 1699 | *conf = 0x00020010; |
| 1700 | } else { |
| 1701 | *conn = 0x0000000e; /* EOL */ |
| 1702 | *conf = 0x00000000; |
| 1703 | } |
| 1704 | } |
| 1705 | |
| 1706 | /* Some other twisted XFX board (rhbz#694914) |
| 1707 | * |
| 1708 | * The DVI/VGA encoder combo that's supposed to represent the |
| 1709 | * DVI-I connector actually point at two different ones, and |
| 1710 | * the HDMI connector ends up paired with the VGA instead. |
| 1711 | * |
| 1712 | * Connector table is missing anything for VGA at all, pointing it |
| 1713 | * an invalid conntab entry 2 so we figure it out ourself. |
| 1714 | */ |
| 1715 | if (nv_match_device(dev, 0x0615, 0x1682, 0x2605)) { |
| 1716 | if (idx == 0) { |
| 1717 | *conn = 0x02002300; /* VGA, connector 2 */ |
| 1718 | *conf = 0x00000028; |
| 1719 | } else |
| 1720 | if (idx == 1) { |
| 1721 | *conn = 0x01010312; /* DVI, connector 0 */ |
| 1722 | *conf = 0x00020030; |
| 1723 | } else |
| 1724 | if (idx == 2) { |
| 1725 | *conn = 0x04020310; /* VGA, connector 0 */ |
| 1726 | *conf = 0x00000028; |
| 1727 | } else |
| 1728 | if (idx == 3) { |
| 1729 | *conn = 0x02021322; /* HDMI, connector 1 */ |
| 1730 | *conf = 0x00020010; |
| 1731 | } else { |
| 1732 | *conn = 0x0000000e; /* EOL */ |
| 1733 | *conf = 0x00000000; |
| 1734 | } |
| 1735 | } |
| 1736 | |
| 1737 | /* fdo#50830: connector indices for VGA and DVI-I are backwards */ |
| 1738 | if (nv_match_device(dev, 0x0421, 0x3842, 0xc793)) { |
| 1739 | if (idx == 0 && *conn == 0x02000300) |
| 1740 | *conn = 0x02011300; |
| 1741 | else |
| 1742 | if (idx == 1 && *conn == 0x04011310) |
| 1743 | *conn = 0x04000310; |
| 1744 | else |
| 1745 | if (idx == 2 && *conn == 0x02011312) |
| 1746 | *conn = 0x02000312; |
| 1747 | } |
| 1748 | |
| 1749 | return true; |
| 1750 | } |
| 1751 | |
| 1752 | static void |
| 1753 | fabricate_dcb_encoder_table(struct drm_device *dev, struct nvbios *bios) |
| 1754 | { |
| 1755 | struct dcb_table *dcb = &bios->dcb; |
| 1756 | int all_heads = (nv_two_heads(dev) ? 3 : 1); |
| 1757 | |
| 1758 | #ifdef __powerpc__ |
| 1759 | /* Apple iMac G4 NV17 */ |
| 1760 | if (of_machine_is_compatible("PowerMac4,5")) { |
| 1761 | fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 0, all_heads, 1); |
| 1762 | fabricate_dcb_output(dcb, DCB_OUTPUT_ANALOG, 1, all_heads, 2); |
| 1763 | return; |
| 1764 | } |
| 1765 | #endif |
| 1766 | |
| 1767 | /* Make up some sane defaults */ |
| 1768 | fabricate_dcb_output(dcb, DCB_OUTPUT_ANALOG, |
| 1769 | bios->legacy.i2c_indices.crt, 1, 1); |
| 1770 | |
| 1771 | if (nv04_tv_identify(dev, bios->legacy.i2c_indices.tv) >= 0) |
| 1772 | fabricate_dcb_output(dcb, DCB_OUTPUT_TV, |
| 1773 | bios->legacy.i2c_indices.tv, |
| 1774 | all_heads, 0); |
| 1775 | |
| 1776 | else if (bios->tmds.output0_script_ptr || |
| 1777 | bios->tmds.output1_script_ptr) |
| 1778 | fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, |
| 1779 | bios->legacy.i2c_indices.panel, |
| 1780 | all_heads, 1); |
| 1781 | } |
| 1782 | |
| 1783 | static int |
| 1784 | parse_dcb_entry(struct drm_device *dev, void *data, int idx, u8 *outp) |
| 1785 | { |
| 1786 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 1787 | struct dcb_table *dcb = &drm->vbios.dcb; |
| 1788 | u32 conf = (dcb->version >= 0x20) ? ROM32(outp[4]) : ROM32(outp[6]); |
| 1789 | u32 conn = ROM32(outp[0]); |
| 1790 | bool ret; |
| 1791 | |
| 1792 | if (apply_dcb_encoder_quirks(dev, idx, &conn, &conf)) { |
| 1793 | struct dcb_output *entry = new_dcb_entry(dcb); |
| 1794 | |
| 1795 | NV_INFO(drm, "DCB outp %02d: %08x %08x\n", idx, conn, conf); |
| 1796 | |
| 1797 | if (dcb->version >= 0x20) |
| 1798 | ret = parse_dcb20_entry(dev, dcb, conn, conf, entry); |
| 1799 | else |
| 1800 | ret = parse_dcb15_entry(dev, dcb, conn, conf, entry); |
| 1801 | if (!ret) |
| 1802 | return 1; /* stop parsing */ |
| 1803 | |
| 1804 | /* Ignore the I2C index for on-chip TV-out, as there |
| 1805 | * are cards with bogus values (nv31m in bug 23212), |
| 1806 | * and it's otherwise useless. |
| 1807 | */ |
| 1808 | if (entry->type == DCB_OUTPUT_TV && |
| 1809 | entry->location == DCB_LOC_ON_CHIP) |
| 1810 | entry->i2c_index = 0x0f; |
| 1811 | } |
| 1812 | |
| 1813 | return 0; |
| 1814 | } |
| 1815 | |
| 1816 | static void |
| 1817 | dcb_fake_connectors(struct nvbios *bios) |
| 1818 | { |
| 1819 | struct dcb_table *dcbt = &bios->dcb; |
| 1820 | u8 map[16] = { }; |
| 1821 | int i, idx = 0; |
| 1822 | |
| 1823 | /* heuristic: if we ever get a non-zero connector field, assume |
| 1824 | * that all the indices are valid and we don't need fake them. |
| 1825 | * |
| 1826 | * and, as usual, a blacklist of boards with bad bios data.. |
| 1827 | */ |
| 1828 | if (!nv_match_device(bios->dev, 0x0392, 0x107d, 0x20a2)) { |
| 1829 | for (i = 0; i < dcbt->entries; i++) { |
| 1830 | if (dcbt->entry[i].connector) |
| 1831 | return; |
| 1832 | } |
| 1833 | } |
| 1834 | |
| 1835 | /* no useful connector info available, we need to make it up |
| 1836 | * ourselves. the rule here is: anything on the same i2c bus |
| 1837 | * is considered to be on the same connector. any output |
| 1838 | * without an associated i2c bus is assigned its own unique |
| 1839 | * connector index. |
| 1840 | */ |
| 1841 | for (i = 0; i < dcbt->entries; i++) { |
| 1842 | u8 i2c = dcbt->entry[i].i2c_index; |
| 1843 | if (i2c == 0x0f) { |
| 1844 | dcbt->entry[i].connector = idx++; |
| 1845 | } else { |
| 1846 | if (!map[i2c]) |
| 1847 | map[i2c] = ++idx; |
| 1848 | dcbt->entry[i].connector = map[i2c] - 1; |
| 1849 | } |
| 1850 | } |
| 1851 | |
| 1852 | /* if we created more than one connector, destroy the connector |
| 1853 | * table - just in case it has random, rather than stub, entries. |
| 1854 | */ |
| 1855 | if (i > 1) { |
| 1856 | u8 *conntab = olddcb_conntab(bios->dev); |
| 1857 | if (conntab) |
| 1858 | conntab[0] = 0x00; |
| 1859 | } |
| 1860 | } |
| 1861 | |
| 1862 | static int |
| 1863 | parse_dcb_table(struct drm_device *dev, struct nvbios *bios) |
| 1864 | { |
| 1865 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 1866 | struct dcb_table *dcb = &bios->dcb; |
| 1867 | u8 *dcbt, *conn; |
| 1868 | int idx; |
| 1869 | |
| 1870 | dcbt = olddcb_table(dev); |
| 1871 | if (!dcbt) { |
| 1872 | /* handle pre-DCB boards */ |
| 1873 | if (bios->type == NVBIOS_BMP) { |
| 1874 | fabricate_dcb_encoder_table(dev, bios); |
| 1875 | return 0; |
| 1876 | } |
| 1877 | |
| 1878 | return -EINVAL; |
| 1879 | } |
| 1880 | |
| 1881 | NV_INFO(drm, "DCB version %d.%d\n", dcbt[0] >> 4, dcbt[0] & 0xf); |
| 1882 | |
| 1883 | dcb->version = dcbt[0]; |
| 1884 | olddcb_outp_foreach(dev, NULL, parse_dcb_entry); |
| 1885 | |
| 1886 | /* |
| 1887 | * apart for v2.1+ not being known for requiring merging, this |
| 1888 | * guarantees dcbent->index is the index of the entry in the rom image |
| 1889 | */ |
| 1890 | if (dcb->version < 0x21) |
| 1891 | merge_like_dcb_entries(dev, dcb); |
| 1892 | |
| 1893 | /* dump connector table entries to log, if any exist */ |
| 1894 | idx = -1; |
| 1895 | while ((conn = olddcb_conn(dev, ++idx))) { |
| 1896 | if (conn[0] != 0xff) { |
| 1897 | if (olddcb_conntab(dev)[3] < 4) |
| 1898 | NV_INFO(drm, "DCB conn %02d: %04x\n", |
| 1899 | idx, ROM16(conn[0])); |
| 1900 | else |
| 1901 | NV_INFO(drm, "DCB conn %02d: %08x\n", |
| 1902 | idx, ROM32(conn[0])); |
| 1903 | } |
| 1904 | } |
| 1905 | dcb_fake_connectors(bios); |
| 1906 | return 0; |
| 1907 | } |
| 1908 | |
| 1909 | static int load_nv17_hwsq_ucode_entry(struct drm_device *dev, struct nvbios *bios, uint16_t hwsq_offset, int entry) |
| 1910 | { |
| 1911 | /* |
| 1912 | * The header following the "HWSQ" signature has the number of entries, |
| 1913 | * and the entry size |
| 1914 | * |
| 1915 | * An entry consists of a dword to write to the sequencer control reg |
| 1916 | * (0x00001304), followed by the ucode bytes, written sequentially, |
| 1917 | * starting at reg 0x00001400 |
| 1918 | */ |
| 1919 | |
| 1920 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 1921 | struct nvif_object *device = &drm->device.object; |
| 1922 | uint8_t bytes_to_write; |
| 1923 | uint16_t hwsq_entry_offset; |
| 1924 | int i; |
| 1925 | |
| 1926 | if (bios->data[hwsq_offset] <= entry) { |
| 1927 | NV_ERROR(drm, "Too few entries in HW sequencer table for " |
| 1928 | "requested entry\n"); |
| 1929 | return -ENOENT; |
| 1930 | } |
| 1931 | |
| 1932 | bytes_to_write = bios->data[hwsq_offset + 1]; |
| 1933 | |
| 1934 | if (bytes_to_write != 36) { |
| 1935 | NV_ERROR(drm, "Unknown HW sequencer entry size\n"); |
| 1936 | return -EINVAL; |
| 1937 | } |
| 1938 | |
| 1939 | NV_INFO(drm, "Loading NV17 power sequencing microcode\n"); |
| 1940 | |
| 1941 | hwsq_entry_offset = hwsq_offset + 2 + entry * bytes_to_write; |
| 1942 | |
| 1943 | /* set sequencer control */ |
| 1944 | nvif_wr32(device, 0x00001304, ROM32(bios->data[hwsq_entry_offset])); |
| 1945 | bytes_to_write -= 4; |
| 1946 | |
| 1947 | /* write ucode */ |
| 1948 | for (i = 0; i < bytes_to_write; i += 4) |
| 1949 | nvif_wr32(device, 0x00001400 + i, ROM32(bios->data[hwsq_entry_offset + i + 4])); |
| 1950 | |
| 1951 | /* twiddle NV_PBUS_DEBUG_4 */ |
| 1952 | nvif_wr32(device, NV_PBUS_DEBUG_4, nvif_rd32(device, NV_PBUS_DEBUG_4) | 0x18); |
| 1953 | |
| 1954 | return 0; |
| 1955 | } |
| 1956 | |
| 1957 | static int load_nv17_hw_sequencer_ucode(struct drm_device *dev, |
| 1958 | struct nvbios *bios) |
| 1959 | { |
| 1960 | /* |
| 1961 | * BMP based cards, from NV17, need a microcode loading to correctly |
| 1962 | * control the GPIO etc for LVDS panels |
| 1963 | * |
| 1964 | * BIT based cards seem to do this directly in the init scripts |
| 1965 | * |
| 1966 | * The microcode entries are found by the "HWSQ" signature. |
| 1967 | */ |
| 1968 | |
| 1969 | const uint8_t hwsq_signature[] = { 'H', 'W', 'S', 'Q' }; |
| 1970 | const int sz = sizeof(hwsq_signature); |
| 1971 | int hwsq_offset; |
| 1972 | |
| 1973 | hwsq_offset = findstr(bios->data, bios->length, hwsq_signature, sz); |
| 1974 | if (!hwsq_offset) |
| 1975 | return 0; |
| 1976 | |
| 1977 | /* always use entry 0? */ |
| 1978 | return load_nv17_hwsq_ucode_entry(dev, bios, hwsq_offset + sz, 0); |
| 1979 | } |
| 1980 | |
| 1981 | uint8_t *nouveau_bios_embedded_edid(struct drm_device *dev) |
| 1982 | { |
| 1983 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 1984 | struct nvbios *bios = &drm->vbios; |
| 1985 | const uint8_t edid_sig[] = { |
| 1986 | 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 }; |
| 1987 | uint16_t offset = 0; |
| 1988 | uint16_t newoffset; |
| 1989 | int searchlen = NV_PROM_SIZE; |
| 1990 | |
| 1991 | if (bios->fp.edid) |
| 1992 | return bios->fp.edid; |
| 1993 | |
| 1994 | while (searchlen) { |
| 1995 | newoffset = findstr(&bios->data[offset], searchlen, |
| 1996 | edid_sig, 8); |
| 1997 | if (!newoffset) |
| 1998 | return NULL; |
| 1999 | offset += newoffset; |
| 2000 | if (!nv_cksum(&bios->data[offset], EDID1_LEN)) |
| 2001 | break; |
| 2002 | |
| 2003 | searchlen -= offset; |
| 2004 | offset++; |
| 2005 | } |
| 2006 | |
| 2007 | NV_INFO(drm, "Found EDID in BIOS\n"); |
| 2008 | |
| 2009 | return bios->fp.edid = &bios->data[offset]; |
| 2010 | } |
| 2011 | |
| 2012 | static bool NVInitVBIOS(struct drm_device *dev) |
| 2013 | { |
| 2014 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 2015 | struct nvkm_bios *bios = nvxx_bios(&drm->device); |
| 2016 | struct nvbios *legacy = &drm->vbios; |
| 2017 | |
| 2018 | memset(legacy, 0, sizeof(struct nvbios)); |
| 2019 | spin_lock_init(&legacy->lock); |
| 2020 | legacy->dev = dev; |
| 2021 | |
| 2022 | legacy->data = bios->data; |
| 2023 | legacy->length = bios->size; |
| 2024 | legacy->major_version = bios->version.major; |
| 2025 | legacy->chip_version = bios->version.chip; |
| 2026 | if (bios->bit_offset) { |
| 2027 | legacy->type = NVBIOS_BIT; |
| 2028 | legacy->offset = bios->bit_offset; |
| 2029 | return !parse_bit_structure(legacy, legacy->offset + 6); |
| 2030 | } else |
| 2031 | if (bios->bmp_offset) { |
| 2032 | legacy->type = NVBIOS_BMP; |
| 2033 | legacy->offset = bios->bmp_offset; |
| 2034 | return !parse_bmp_structure(dev, legacy, legacy->offset); |
| 2035 | } |
| 2036 | |
| 2037 | return false; |
| 2038 | } |
| 2039 | |
| 2040 | int |
| 2041 | nouveau_run_vbios_init(struct drm_device *dev) |
| 2042 | { |
| 2043 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 2044 | struct nvbios *bios = &drm->vbios; |
| 2045 | int ret = 0; |
| 2046 | |
| 2047 | /* Reset the BIOS head to 0. */ |
| 2048 | bios->state.crtchead = 0; |
| 2049 | |
| 2050 | if (bios->major_version < 5) /* BMP only */ |
| 2051 | load_nv17_hw_sequencer_ucode(dev, bios); |
| 2052 | |
| 2053 | if (bios->execute) { |
| 2054 | bios->fp.last_script_invoc = 0; |
| 2055 | bios->fp.lvds_init_run = false; |
| 2056 | } |
| 2057 | |
| 2058 | return ret; |
| 2059 | } |
| 2060 | |
| 2061 | static bool |
| 2062 | nouveau_bios_posted(struct drm_device *dev) |
| 2063 | { |
| 2064 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 2065 | unsigned htotal; |
| 2066 | |
| 2067 | if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) |
| 2068 | return true; |
| 2069 | |
| 2070 | htotal = NVReadVgaCrtc(dev, 0, 0x06); |
| 2071 | htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x01) << 8; |
| 2072 | htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x20) << 4; |
| 2073 | htotal |= (NVReadVgaCrtc(dev, 0, 0x25) & 0x01) << 10; |
| 2074 | htotal |= (NVReadVgaCrtc(dev, 0, 0x41) & 0x01) << 11; |
| 2075 | return (htotal != 0); |
| 2076 | } |
| 2077 | |
| 2078 | int |
| 2079 | nouveau_bios_init(struct drm_device *dev) |
| 2080 | { |
| 2081 | struct nouveau_drm *drm = nouveau_drm(dev); |
| 2082 | struct nvbios *bios = &drm->vbios; |
| 2083 | int ret; |
| 2084 | |
| 2085 | /* only relevant for PCI devices */ |
| 2086 | if (!dev->pdev) |
| 2087 | return 0; |
| 2088 | |
| 2089 | if (!NVInitVBIOS(dev)) |
| 2090 | return -ENODEV; |
| 2091 | |
| 2092 | ret = parse_dcb_table(dev, bios); |
| 2093 | if (ret) |
| 2094 | return ret; |
| 2095 | |
| 2096 | if (!bios->major_version) /* we don't run version 0 bios */ |
| 2097 | return 0; |
| 2098 | |
| 2099 | /* init script execution disabled */ |
| 2100 | bios->execute = false; |
| 2101 | |
| 2102 | /* ... unless card isn't POSTed already */ |
| 2103 | if (!nouveau_bios_posted(dev)) { |
| 2104 | NV_INFO(drm, "Adaptor not initialised, " |
| 2105 | "running VBIOS init tables.\n"); |
| 2106 | bios->execute = true; |
| 2107 | } |
| 2108 | |
| 2109 | ret = nouveau_run_vbios_init(dev); |
| 2110 | if (ret) |
| 2111 | return ret; |
| 2112 | |
| 2113 | /* feature_byte on BMP is poor, but init always sets CR4B */ |
| 2114 | if (bios->major_version < 5) |
| 2115 | bios->is_mobile = NVReadVgaCrtc(dev, 0, NV_CIO_CRE_4B) & 0x40; |
| 2116 | |
| 2117 | /* all BIT systems need p_f_m_t for digital_min_front_porch */ |
| 2118 | if (bios->is_mobile || bios->major_version >= 5) |
| 2119 | ret = parse_fp_mode_table(dev, bios); |
| 2120 | |
| 2121 | /* allow subsequent scripts to execute */ |
| 2122 | bios->execute = true; |
| 2123 | |
| 2124 | return 0; |
| 2125 | } |
| 2126 | |
| 2127 | void |
| 2128 | nouveau_bios_takedown(struct drm_device *dev) |
| 2129 | { |
| 2130 | } |