1 /* 2 * Copyright 2006 Dave Airlie <airlied@linux.ie> 3 * Copyright © 2006-2007 Intel Corporation 4 * Jesse Barnes <jesse.barnes@intel.com> 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 (including the next 14 * paragraph) shall be included in all copies or substantial portions of the 15 * Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 23 * DEALINGS IN THE SOFTWARE. 24 * 25 * Authors: 26 * Eric Anholt <eric@anholt.net> 27 */ 28 29 #include <linux/delay.h> 30 #include <linux/export.h> 31 #include <linux/i2c.h> 32 #include <linux/slab.h> 33 34 #include <drm/display/drm_hdmi_helper.h> 35 #include <drm/drm_atomic_helper.h> 36 #include <drm/drm_crtc.h> 37 #include <drm/drm_edid.h> 38 #include <drm/drm_eld.h> 39 40 #include "i915_drv.h" 41 #include "i915_reg.h" 42 #include "intel_atomic.h" 43 #include "intel_audio.h" 44 #include "intel_connector.h" 45 #include "intel_crtc.h" 46 #include "intel_de.h" 47 #include "intel_display_types.h" 48 #include "intel_fdi.h" 49 #include "intel_fifo_underrun.h" 50 #include "intel_gmbus.h" 51 #include "intel_hdmi.h" 52 #include "intel_hotplug.h" 53 #include "intel_panel.h" 54 #include "intel_sdvo.h" 55 #include "intel_sdvo_regs.h" 56 57 #define SDVO_TMDS_MASK (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1) 58 #define SDVO_RGB_MASK (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1) 59 #define SDVO_LVDS_MASK (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1) 60 #define SDVO_TV_MASK (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_YPRPB0) 61 62 #define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK | SDVO_TV_MASK) 63 64 #define IS_TV(c) ((c)->output_flag & SDVO_TV_MASK) 65 #define IS_TMDS(c) ((c)->output_flag & SDVO_TMDS_MASK) 66 #define IS_LVDS(c) ((c)->output_flag & SDVO_LVDS_MASK) 67 #define IS_TV_OR_LVDS(c) ((c)->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK)) 68 #define IS_DIGITAL(c) ((c)->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK)) 69 70 #define HAS_DDC(c) ((c)->output_flag & (SDVO_RGB_MASK | SDVO_TMDS_MASK | \ 71 SDVO_LVDS_MASK)) 72 73 static const char * const tv_format_names[] = { 74 "NTSC_M" , "NTSC_J" , "NTSC_443", 75 "PAL_B" , "PAL_D" , "PAL_G" , 76 "PAL_H" , "PAL_I" , "PAL_M" , 77 "PAL_N" , "PAL_NC" , "PAL_60" , 78 "SECAM_B" , "SECAM_D" , "SECAM_G" , 79 "SECAM_K" , "SECAM_K1", "SECAM_L" , 80 "SECAM_60" 81 }; 82 83 #define TV_FORMAT_NUM ARRAY_SIZE(tv_format_names) 84 85 struct intel_sdvo; 86 87 struct intel_sdvo_ddc { 88 struct i2c_adapter ddc; 89 struct intel_sdvo *sdvo; 90 u8 ddc_bus; 91 }; 92 93 struct intel_sdvo { 94 struct intel_encoder base; 95 96 struct i2c_adapter *i2c; 97 u8 slave_addr; 98 99 struct intel_sdvo_ddc ddc[3]; 100 101 /* Register for the SDVO device: SDVOB or SDVOC */ 102 i915_reg_t sdvo_reg; 103 104 /* 105 * Capabilities of the SDVO device returned by 106 * intel_sdvo_get_capabilities() 107 */ 108 struct intel_sdvo_caps caps; 109 110 u8 colorimetry_cap; 111 112 /* Pixel clock limitations reported by the SDVO device, in kHz */ 113 int pixel_clock_min, pixel_clock_max; 114 115 /* 116 * Hotplug activation bits for this device 117 */ 118 u16 hotplug_active; 119 120 /* 121 * the sdvo flag gets lost in round trip: dtd->adjusted_mode->dtd 122 */ 123 u8 dtd_sdvo_flags; 124 }; 125 126 struct intel_sdvo_connector { 127 struct intel_connector base; 128 129 /* Mark the type of connector */ 130 u16 output_flag; 131 132 /* This contains all current supported TV format */ 133 u8 tv_format_supported[TV_FORMAT_NUM]; 134 int format_supported_num; 135 struct drm_property *tv_format; 136 137 /* add the property for the SDVO-TV */ 138 struct drm_property *left; 139 struct drm_property *right; 140 struct drm_property *top; 141 struct drm_property *bottom; 142 struct drm_property *hpos; 143 struct drm_property *vpos; 144 struct drm_property *contrast; 145 struct drm_property *saturation; 146 struct drm_property *hue; 147 struct drm_property *sharpness; 148 struct drm_property *flicker_filter; 149 struct drm_property *flicker_filter_adaptive; 150 struct drm_property *flicker_filter_2d; 151 struct drm_property *tv_chroma_filter; 152 struct drm_property *tv_luma_filter; 153 struct drm_property *dot_crawl; 154 155 /* add the property for the SDVO-TV/LVDS */ 156 struct drm_property *brightness; 157 158 /* this is to get the range of margin.*/ 159 u32 max_hscan, max_vscan; 160 161 /** 162 * This is set if we treat the device as HDMI, instead of DVI. 163 */ 164 bool is_hdmi; 165 }; 166 167 struct intel_sdvo_connector_state { 168 /* base.base: tv.saturation/contrast/hue/brightness */ 169 struct intel_digital_connector_state base; 170 171 struct { 172 unsigned overscan_h, overscan_v, hpos, vpos, sharpness; 173 unsigned flicker_filter, flicker_filter_2d, flicker_filter_adaptive; 174 unsigned chroma_filter, luma_filter, dot_crawl; 175 } tv; 176 }; 177 178 static struct intel_sdvo *to_sdvo(struct intel_encoder *encoder) 179 { 180 return container_of(encoder, struct intel_sdvo, base); 181 } 182 183 static struct intel_sdvo *intel_attached_sdvo(struct intel_connector *connector) 184 { 185 return to_sdvo(intel_attached_encoder(connector)); 186 } 187 188 static struct intel_sdvo_connector * 189 to_intel_sdvo_connector(struct drm_connector *connector) 190 { 191 return container_of(connector, struct intel_sdvo_connector, base.base); 192 } 193 194 #define to_intel_sdvo_connector_state(conn_state) \ 195 container_of((conn_state), struct intel_sdvo_connector_state, base.base) 196 197 static bool 198 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo); 199 static bool 200 intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo, 201 struct intel_sdvo_connector *intel_sdvo_connector, 202 int type); 203 static bool 204 intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo, 205 struct intel_sdvo_connector *intel_sdvo_connector); 206 207 /* 208 * Writes the SDVOB or SDVOC with the given value, but always writes both 209 * SDVOB and SDVOC to work around apparent hardware issues (according to 210 * comments in the BIOS). 211 */ 212 static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val) 213 { 214 struct drm_device *dev = intel_sdvo->base.base.dev; 215 struct drm_i915_private *dev_priv = to_i915(dev); 216 u32 bval = val, cval = val; 217 int i; 218 219 if (HAS_PCH_SPLIT(dev_priv)) { 220 intel_de_write(dev_priv, intel_sdvo->sdvo_reg, val); 221 intel_de_posting_read(dev_priv, intel_sdvo->sdvo_reg); 222 /* 223 * HW workaround, need to write this twice for issue 224 * that may result in first write getting masked. 225 */ 226 if (HAS_PCH_IBX(dev_priv)) { 227 intel_de_write(dev_priv, intel_sdvo->sdvo_reg, val); 228 intel_de_posting_read(dev_priv, intel_sdvo->sdvo_reg); 229 } 230 return; 231 } 232 233 if (intel_sdvo->base.port == PORT_B) 234 cval = intel_de_read(dev_priv, GEN3_SDVOC); 235 else 236 bval = intel_de_read(dev_priv, GEN3_SDVOB); 237 238 /* 239 * Write the registers twice for luck. Sometimes, 240 * writing them only once doesn't appear to 'stick'. 241 * The BIOS does this too. Yay, magic 242 */ 243 for (i = 0; i < 2; i++) { 244 intel_de_write(dev_priv, GEN3_SDVOB, bval); 245 intel_de_posting_read(dev_priv, GEN3_SDVOB); 246 247 intel_de_write(dev_priv, GEN3_SDVOC, cval); 248 intel_de_posting_read(dev_priv, GEN3_SDVOC); 249 } 250 } 251 252 static bool intel_sdvo_read_byte(struct intel_sdvo *intel_sdvo, u8 addr, u8 *ch) 253 { 254 struct i2c_msg msgs[] = { 255 { 256 .addr = intel_sdvo->slave_addr, 257 .flags = 0, 258 .len = 1, 259 .buf = &addr, 260 }, 261 { 262 .addr = intel_sdvo->slave_addr, 263 .flags = I2C_M_RD, 264 .len = 1, 265 .buf = ch, 266 } 267 }; 268 int ret; 269 270 if ((ret = i2c_transfer(intel_sdvo->i2c, msgs, 2)) == 2) 271 return true; 272 273 DRM_DEBUG_KMS("i2c transfer returned %d\n", ret); 274 return false; 275 } 276 277 #define SDVO_CMD_NAME_ENTRY(cmd_) { .cmd = SDVO_CMD_ ## cmd_, .name = #cmd_ } 278 279 /** Mapping of command numbers to names, for debug output */ 280 static const struct { 281 u8 cmd; 282 const char *name; 283 } __packed sdvo_cmd_names[] = { 284 SDVO_CMD_NAME_ENTRY(RESET), 285 SDVO_CMD_NAME_ENTRY(GET_DEVICE_CAPS), 286 SDVO_CMD_NAME_ENTRY(GET_FIRMWARE_REV), 287 SDVO_CMD_NAME_ENTRY(GET_TRAINED_INPUTS), 288 SDVO_CMD_NAME_ENTRY(GET_ACTIVE_OUTPUTS), 289 SDVO_CMD_NAME_ENTRY(SET_ACTIVE_OUTPUTS), 290 SDVO_CMD_NAME_ENTRY(GET_IN_OUT_MAP), 291 SDVO_CMD_NAME_ENTRY(SET_IN_OUT_MAP), 292 SDVO_CMD_NAME_ENTRY(GET_ATTACHED_DISPLAYS), 293 SDVO_CMD_NAME_ENTRY(GET_HOT_PLUG_SUPPORT), 294 SDVO_CMD_NAME_ENTRY(SET_ACTIVE_HOT_PLUG), 295 SDVO_CMD_NAME_ENTRY(GET_ACTIVE_HOT_PLUG), 296 SDVO_CMD_NAME_ENTRY(GET_INTERRUPT_EVENT_SOURCE), 297 SDVO_CMD_NAME_ENTRY(SET_TARGET_INPUT), 298 SDVO_CMD_NAME_ENTRY(SET_TARGET_OUTPUT), 299 SDVO_CMD_NAME_ENTRY(GET_INPUT_TIMINGS_PART1), 300 SDVO_CMD_NAME_ENTRY(GET_INPUT_TIMINGS_PART2), 301 SDVO_CMD_NAME_ENTRY(SET_INPUT_TIMINGS_PART1), 302 SDVO_CMD_NAME_ENTRY(SET_INPUT_TIMINGS_PART2), 303 SDVO_CMD_NAME_ENTRY(SET_OUTPUT_TIMINGS_PART1), 304 SDVO_CMD_NAME_ENTRY(SET_OUTPUT_TIMINGS_PART2), 305 SDVO_CMD_NAME_ENTRY(GET_OUTPUT_TIMINGS_PART1), 306 SDVO_CMD_NAME_ENTRY(GET_OUTPUT_TIMINGS_PART2), 307 SDVO_CMD_NAME_ENTRY(CREATE_PREFERRED_INPUT_TIMING), 308 SDVO_CMD_NAME_ENTRY(GET_PREFERRED_INPUT_TIMING_PART1), 309 SDVO_CMD_NAME_ENTRY(GET_PREFERRED_INPUT_TIMING_PART2), 310 SDVO_CMD_NAME_ENTRY(GET_INPUT_PIXEL_CLOCK_RANGE), 311 SDVO_CMD_NAME_ENTRY(GET_OUTPUT_PIXEL_CLOCK_RANGE), 312 SDVO_CMD_NAME_ENTRY(GET_SUPPORTED_CLOCK_RATE_MULTS), 313 SDVO_CMD_NAME_ENTRY(GET_CLOCK_RATE_MULT), 314 SDVO_CMD_NAME_ENTRY(SET_CLOCK_RATE_MULT), 315 SDVO_CMD_NAME_ENTRY(GET_SUPPORTED_TV_FORMATS), 316 SDVO_CMD_NAME_ENTRY(GET_TV_FORMAT), 317 SDVO_CMD_NAME_ENTRY(SET_TV_FORMAT), 318 SDVO_CMD_NAME_ENTRY(GET_SUPPORTED_POWER_STATES), 319 SDVO_CMD_NAME_ENTRY(GET_POWER_STATE), 320 SDVO_CMD_NAME_ENTRY(SET_ENCODER_POWER_STATE), 321 SDVO_CMD_NAME_ENTRY(SET_DISPLAY_POWER_STATE), 322 SDVO_CMD_NAME_ENTRY(SET_CONTROL_BUS_SWITCH), 323 SDVO_CMD_NAME_ENTRY(GET_SDTV_RESOLUTION_SUPPORT), 324 SDVO_CMD_NAME_ENTRY(GET_SCALED_HDTV_RESOLUTION_SUPPORT), 325 SDVO_CMD_NAME_ENTRY(GET_SUPPORTED_ENHANCEMENTS), 326 327 /* Add the op code for SDVO enhancements */ 328 SDVO_CMD_NAME_ENTRY(GET_MAX_HPOS), 329 SDVO_CMD_NAME_ENTRY(GET_HPOS), 330 SDVO_CMD_NAME_ENTRY(SET_HPOS), 331 SDVO_CMD_NAME_ENTRY(GET_MAX_VPOS), 332 SDVO_CMD_NAME_ENTRY(GET_VPOS), 333 SDVO_CMD_NAME_ENTRY(SET_VPOS), 334 SDVO_CMD_NAME_ENTRY(GET_MAX_SATURATION), 335 SDVO_CMD_NAME_ENTRY(GET_SATURATION), 336 SDVO_CMD_NAME_ENTRY(SET_SATURATION), 337 SDVO_CMD_NAME_ENTRY(GET_MAX_HUE), 338 SDVO_CMD_NAME_ENTRY(GET_HUE), 339 SDVO_CMD_NAME_ENTRY(SET_HUE), 340 SDVO_CMD_NAME_ENTRY(GET_MAX_CONTRAST), 341 SDVO_CMD_NAME_ENTRY(GET_CONTRAST), 342 SDVO_CMD_NAME_ENTRY(SET_CONTRAST), 343 SDVO_CMD_NAME_ENTRY(GET_MAX_BRIGHTNESS), 344 SDVO_CMD_NAME_ENTRY(GET_BRIGHTNESS), 345 SDVO_CMD_NAME_ENTRY(SET_BRIGHTNESS), 346 SDVO_CMD_NAME_ENTRY(GET_MAX_OVERSCAN_H), 347 SDVO_CMD_NAME_ENTRY(GET_OVERSCAN_H), 348 SDVO_CMD_NAME_ENTRY(SET_OVERSCAN_H), 349 SDVO_CMD_NAME_ENTRY(GET_MAX_OVERSCAN_V), 350 SDVO_CMD_NAME_ENTRY(GET_OVERSCAN_V), 351 SDVO_CMD_NAME_ENTRY(SET_OVERSCAN_V), 352 SDVO_CMD_NAME_ENTRY(GET_MAX_FLICKER_FILTER), 353 SDVO_CMD_NAME_ENTRY(GET_FLICKER_FILTER), 354 SDVO_CMD_NAME_ENTRY(SET_FLICKER_FILTER), 355 SDVO_CMD_NAME_ENTRY(GET_MAX_FLICKER_FILTER_ADAPTIVE), 356 SDVO_CMD_NAME_ENTRY(GET_FLICKER_FILTER_ADAPTIVE), 357 SDVO_CMD_NAME_ENTRY(SET_FLICKER_FILTER_ADAPTIVE), 358 SDVO_CMD_NAME_ENTRY(GET_MAX_FLICKER_FILTER_2D), 359 SDVO_CMD_NAME_ENTRY(GET_FLICKER_FILTER_2D), 360 SDVO_CMD_NAME_ENTRY(SET_FLICKER_FILTER_2D), 361 SDVO_CMD_NAME_ENTRY(GET_MAX_SHARPNESS), 362 SDVO_CMD_NAME_ENTRY(GET_SHARPNESS), 363 SDVO_CMD_NAME_ENTRY(SET_SHARPNESS), 364 SDVO_CMD_NAME_ENTRY(GET_DOT_CRAWL), 365 SDVO_CMD_NAME_ENTRY(SET_DOT_CRAWL), 366 SDVO_CMD_NAME_ENTRY(GET_MAX_TV_CHROMA_FILTER), 367 SDVO_CMD_NAME_ENTRY(GET_TV_CHROMA_FILTER), 368 SDVO_CMD_NAME_ENTRY(SET_TV_CHROMA_FILTER), 369 SDVO_CMD_NAME_ENTRY(GET_MAX_TV_LUMA_FILTER), 370 SDVO_CMD_NAME_ENTRY(GET_TV_LUMA_FILTER), 371 SDVO_CMD_NAME_ENTRY(SET_TV_LUMA_FILTER), 372 373 /* HDMI op code */ 374 SDVO_CMD_NAME_ENTRY(GET_SUPP_ENCODE), 375 SDVO_CMD_NAME_ENTRY(GET_ENCODE), 376 SDVO_CMD_NAME_ENTRY(SET_ENCODE), 377 SDVO_CMD_NAME_ENTRY(SET_PIXEL_REPLI), 378 SDVO_CMD_NAME_ENTRY(GET_PIXEL_REPLI), 379 SDVO_CMD_NAME_ENTRY(GET_COLORIMETRY_CAP), 380 SDVO_CMD_NAME_ENTRY(SET_COLORIMETRY), 381 SDVO_CMD_NAME_ENTRY(GET_COLORIMETRY), 382 SDVO_CMD_NAME_ENTRY(GET_AUDIO_ENCRYPT_PREFER), 383 SDVO_CMD_NAME_ENTRY(SET_AUDIO_STAT), 384 SDVO_CMD_NAME_ENTRY(GET_AUDIO_STAT), 385 SDVO_CMD_NAME_ENTRY(GET_HBUF_INDEX), 386 SDVO_CMD_NAME_ENTRY(SET_HBUF_INDEX), 387 SDVO_CMD_NAME_ENTRY(GET_HBUF_INFO), 388 SDVO_CMD_NAME_ENTRY(GET_HBUF_AV_SPLIT), 389 SDVO_CMD_NAME_ENTRY(SET_HBUF_AV_SPLIT), 390 SDVO_CMD_NAME_ENTRY(GET_HBUF_TXRATE), 391 SDVO_CMD_NAME_ENTRY(SET_HBUF_TXRATE), 392 SDVO_CMD_NAME_ENTRY(SET_HBUF_DATA), 393 SDVO_CMD_NAME_ENTRY(GET_HBUF_DATA), 394 }; 395 396 #undef SDVO_CMD_NAME_ENTRY 397 398 static const char *sdvo_cmd_name(u8 cmd) 399 { 400 int i; 401 402 for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) { 403 if (cmd == sdvo_cmd_names[i].cmd) 404 return sdvo_cmd_names[i].name; 405 } 406 407 return NULL; 408 } 409 410 #define SDVO_NAME(svdo) ((svdo)->base.port == PORT_B ? "SDVOB" : "SDVOC") 411 412 static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd, 413 const void *args, int args_len) 414 { 415 struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev); 416 const char *cmd_name; 417 int i, pos = 0; 418 char buffer[64]; 419 420 #define BUF_PRINT(args...) \ 421 pos += snprintf(buffer + pos, max_t(int, sizeof(buffer) - pos, 0), args) 422 423 for (i = 0; i < args_len; i++) { 424 BUF_PRINT("%02X ", ((u8 *)args)[i]); 425 } 426 for (; i < 8; i++) { 427 BUF_PRINT(" "); 428 } 429 430 cmd_name = sdvo_cmd_name(cmd); 431 if (cmd_name) 432 BUF_PRINT("(%s)", cmd_name); 433 else 434 BUF_PRINT("(%02X)", cmd); 435 436 drm_WARN_ON(&dev_priv->drm, pos >= sizeof(buffer) - 1); 437 #undef BUF_PRINT 438 439 DRM_DEBUG_KMS("%s: W: %02X %s\n", SDVO_NAME(intel_sdvo), cmd, buffer); 440 } 441 442 static const char * const cmd_status_names[] = { 443 [SDVO_CMD_STATUS_POWER_ON] = "Power on", 444 [SDVO_CMD_STATUS_SUCCESS] = "Success", 445 [SDVO_CMD_STATUS_NOTSUPP] = "Not supported", 446 [SDVO_CMD_STATUS_INVALID_ARG] = "Invalid arg", 447 [SDVO_CMD_STATUS_PENDING] = "Pending", 448 [SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED] = "Target not specified", 449 [SDVO_CMD_STATUS_SCALING_NOT_SUPP] = "Scaling not supported", 450 }; 451 452 static const char *sdvo_cmd_status(u8 status) 453 { 454 if (status < ARRAY_SIZE(cmd_status_names)) 455 return cmd_status_names[status]; 456 else 457 return NULL; 458 } 459 460 static bool __intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd, 461 const void *args, int args_len, 462 bool unlocked) 463 { 464 u8 *buf, status; 465 struct i2c_msg *msgs; 466 int i, ret = true; 467 468 /* Would be simpler to allocate both in one go ? */ 469 buf = kzalloc(args_len * 2 + 2, GFP_KERNEL); 470 if (!buf) 471 return false; 472 473 msgs = kcalloc(args_len + 3, sizeof(*msgs), GFP_KERNEL); 474 if (!msgs) { 475 kfree(buf); 476 return false; 477 } 478 479 intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len); 480 481 for (i = 0; i < args_len; i++) { 482 msgs[i].addr = intel_sdvo->slave_addr; 483 msgs[i].flags = 0; 484 msgs[i].len = 2; 485 msgs[i].buf = buf + 2 *i; 486 buf[2*i + 0] = SDVO_I2C_ARG_0 - i; 487 buf[2*i + 1] = ((u8*)args)[i]; 488 } 489 msgs[i].addr = intel_sdvo->slave_addr; 490 msgs[i].flags = 0; 491 msgs[i].len = 2; 492 msgs[i].buf = buf + 2*i; 493 buf[2*i + 0] = SDVO_I2C_OPCODE; 494 buf[2*i + 1] = cmd; 495 496 /* the following two are to read the response */ 497 status = SDVO_I2C_CMD_STATUS; 498 msgs[i+1].addr = intel_sdvo->slave_addr; 499 msgs[i+1].flags = 0; 500 msgs[i+1].len = 1; 501 msgs[i+1].buf = &status; 502 503 msgs[i+2].addr = intel_sdvo->slave_addr; 504 msgs[i+2].flags = I2C_M_RD; 505 msgs[i+2].len = 1; 506 msgs[i+2].buf = &status; 507 508 if (unlocked) 509 ret = i2c_transfer(intel_sdvo->i2c, msgs, i+3); 510 else 511 ret = __i2c_transfer(intel_sdvo->i2c, msgs, i+3); 512 if (ret < 0) { 513 DRM_DEBUG_KMS("I2c transfer returned %d\n", ret); 514 ret = false; 515 goto out; 516 } 517 if (ret != i+3) { 518 /* failure in I2C transfer */ 519 DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3); 520 ret = false; 521 } 522 523 out: 524 kfree(msgs); 525 kfree(buf); 526 return ret; 527 } 528 529 static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd, 530 const void *args, int args_len) 531 { 532 return __intel_sdvo_write_cmd(intel_sdvo, cmd, args, args_len, true); 533 } 534 535 static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo, 536 void *response, int response_len) 537 { 538 struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev); 539 const char *cmd_status; 540 u8 retry = 15; /* 5 quick checks, followed by 10 long checks */ 541 u8 status; 542 int i, pos = 0; 543 char buffer[64]; 544 545 buffer[0] = '\0'; 546 547 /* 548 * The documentation states that all commands will be 549 * processed within 15µs, and that we need only poll 550 * the status byte a maximum of 3 times in order for the 551 * command to be complete. 552 * 553 * Check 5 times in case the hardware failed to read the docs. 554 * 555 * Also beware that the first response by many devices is to 556 * reply PENDING and stall for time. TVs are notorious for 557 * requiring longer than specified to complete their replies. 558 * Originally (in the DDX long ago), the delay was only ever 15ms 559 * with an additional delay of 30ms applied for TVs added later after 560 * many experiments. To accommodate both sets of delays, we do a 561 * sequence of slow checks if the device is falling behind and fails 562 * to reply within 5*15µs. 563 */ 564 if (!intel_sdvo_read_byte(intel_sdvo, 565 SDVO_I2C_CMD_STATUS, 566 &status)) 567 goto log_fail; 568 569 while ((status == SDVO_CMD_STATUS_PENDING || 570 status == SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED) && --retry) { 571 if (retry < 10) 572 msleep(15); 573 else 574 udelay(15); 575 576 if (!intel_sdvo_read_byte(intel_sdvo, 577 SDVO_I2C_CMD_STATUS, 578 &status)) 579 goto log_fail; 580 } 581 582 #define BUF_PRINT(args...) \ 583 pos += snprintf(buffer + pos, max_t(int, sizeof(buffer) - pos, 0), args) 584 585 cmd_status = sdvo_cmd_status(status); 586 if (cmd_status) 587 BUF_PRINT("(%s)", cmd_status); 588 else 589 BUF_PRINT("(??? %d)", status); 590 591 if (status != SDVO_CMD_STATUS_SUCCESS) 592 goto log_fail; 593 594 /* Read the command response */ 595 for (i = 0; i < response_len; i++) { 596 if (!intel_sdvo_read_byte(intel_sdvo, 597 SDVO_I2C_RETURN_0 + i, 598 &((u8 *)response)[i])) 599 goto log_fail; 600 BUF_PRINT(" %02X", ((u8 *)response)[i]); 601 } 602 603 drm_WARN_ON(&dev_priv->drm, pos >= sizeof(buffer) - 1); 604 #undef BUF_PRINT 605 606 DRM_DEBUG_KMS("%s: R: %s\n", SDVO_NAME(intel_sdvo), buffer); 607 return true; 608 609 log_fail: 610 DRM_DEBUG_KMS("%s: R: ... failed %s\n", 611 SDVO_NAME(intel_sdvo), buffer); 612 return false; 613 } 614 615 static int intel_sdvo_get_pixel_multiplier(const struct drm_display_mode *adjusted_mode) 616 { 617 if (adjusted_mode->crtc_clock >= 100000) 618 return 1; 619 else if (adjusted_mode->crtc_clock >= 50000) 620 return 2; 621 else 622 return 4; 623 } 624 625 static bool __intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo, 626 u8 ddc_bus) 627 { 628 /* This must be the immediately preceding write before the i2c xfer */ 629 return __intel_sdvo_write_cmd(intel_sdvo, 630 SDVO_CMD_SET_CONTROL_BUS_SWITCH, 631 &ddc_bus, 1, false); 632 } 633 634 static bool intel_sdvo_set_value(struct intel_sdvo *intel_sdvo, u8 cmd, const void *data, int len) 635 { 636 if (!intel_sdvo_write_cmd(intel_sdvo, cmd, data, len)) 637 return false; 638 639 return intel_sdvo_read_response(intel_sdvo, NULL, 0); 640 } 641 642 static bool 643 intel_sdvo_get_value(struct intel_sdvo *intel_sdvo, u8 cmd, void *value, int len) 644 { 645 if (!intel_sdvo_write_cmd(intel_sdvo, cmd, NULL, 0)) 646 return false; 647 648 return intel_sdvo_read_response(intel_sdvo, value, len); 649 } 650 651 static bool intel_sdvo_set_target_input(struct intel_sdvo *intel_sdvo) 652 { 653 struct intel_sdvo_set_target_input_args targets = {}; 654 return intel_sdvo_set_value(intel_sdvo, 655 SDVO_CMD_SET_TARGET_INPUT, 656 &targets, sizeof(targets)); 657 } 658 659 /* 660 * Return whether each input is trained. 661 * 662 * This function is making an assumption about the layout of the response, 663 * which should be checked against the docs. 664 */ 665 static bool intel_sdvo_get_trained_inputs(struct intel_sdvo *intel_sdvo, bool *input_1, bool *input_2) 666 { 667 struct intel_sdvo_get_trained_inputs_response response; 668 669 BUILD_BUG_ON(sizeof(response) != 1); 670 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_TRAINED_INPUTS, 671 &response, sizeof(response))) 672 return false; 673 674 *input_1 = response.input0_trained; 675 *input_2 = response.input1_trained; 676 return true; 677 } 678 679 static bool intel_sdvo_set_active_outputs(struct intel_sdvo *intel_sdvo, 680 u16 outputs) 681 { 682 return intel_sdvo_set_value(intel_sdvo, 683 SDVO_CMD_SET_ACTIVE_OUTPUTS, 684 &outputs, sizeof(outputs)); 685 } 686 687 static bool intel_sdvo_get_active_outputs(struct intel_sdvo *intel_sdvo, 688 u16 *outputs) 689 { 690 return intel_sdvo_get_value(intel_sdvo, 691 SDVO_CMD_GET_ACTIVE_OUTPUTS, 692 outputs, sizeof(*outputs)); 693 } 694 695 static bool intel_sdvo_set_encoder_power_state(struct intel_sdvo *intel_sdvo, 696 int mode) 697 { 698 u8 state = SDVO_ENCODER_STATE_ON; 699 700 switch (mode) { 701 case DRM_MODE_DPMS_ON: 702 state = SDVO_ENCODER_STATE_ON; 703 break; 704 case DRM_MODE_DPMS_STANDBY: 705 state = SDVO_ENCODER_STATE_STANDBY; 706 break; 707 case DRM_MODE_DPMS_SUSPEND: 708 state = SDVO_ENCODER_STATE_SUSPEND; 709 break; 710 case DRM_MODE_DPMS_OFF: 711 state = SDVO_ENCODER_STATE_OFF; 712 break; 713 } 714 715 return intel_sdvo_set_value(intel_sdvo, 716 SDVO_CMD_SET_ENCODER_POWER_STATE, &state, sizeof(state)); 717 } 718 719 static bool intel_sdvo_get_input_pixel_clock_range(struct intel_sdvo *intel_sdvo, 720 int *clock_min, 721 int *clock_max) 722 { 723 struct intel_sdvo_pixel_clock_range clocks; 724 725 BUILD_BUG_ON(sizeof(clocks) != 4); 726 if (!intel_sdvo_get_value(intel_sdvo, 727 SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE, 728 &clocks, sizeof(clocks))) 729 return false; 730 731 /* Convert the values from units of 10 kHz to kHz. */ 732 *clock_min = clocks.min * 10; 733 *clock_max = clocks.max * 10; 734 return true; 735 } 736 737 static bool intel_sdvo_set_target_output(struct intel_sdvo *intel_sdvo, 738 u16 outputs) 739 { 740 return intel_sdvo_set_value(intel_sdvo, 741 SDVO_CMD_SET_TARGET_OUTPUT, 742 &outputs, sizeof(outputs)); 743 } 744 745 static bool intel_sdvo_set_timing(struct intel_sdvo *intel_sdvo, u8 cmd, 746 struct intel_sdvo_dtd *dtd) 747 { 748 return intel_sdvo_set_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) && 749 intel_sdvo_set_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2)); 750 } 751 752 static bool intel_sdvo_get_timing(struct intel_sdvo *intel_sdvo, u8 cmd, 753 struct intel_sdvo_dtd *dtd) 754 { 755 return intel_sdvo_get_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) && 756 intel_sdvo_get_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2)); 757 } 758 759 static bool intel_sdvo_set_input_timing(struct intel_sdvo *intel_sdvo, 760 struct intel_sdvo_dtd *dtd) 761 { 762 return intel_sdvo_set_timing(intel_sdvo, 763 SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd); 764 } 765 766 static bool intel_sdvo_set_output_timing(struct intel_sdvo *intel_sdvo, 767 struct intel_sdvo_dtd *dtd) 768 { 769 return intel_sdvo_set_timing(intel_sdvo, 770 SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd); 771 } 772 773 static bool intel_sdvo_get_input_timing(struct intel_sdvo *intel_sdvo, 774 struct intel_sdvo_dtd *dtd) 775 { 776 return intel_sdvo_get_timing(intel_sdvo, 777 SDVO_CMD_GET_INPUT_TIMINGS_PART1, dtd); 778 } 779 780 static bool 781 intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo, 782 struct intel_sdvo_connector *intel_sdvo_connector, 783 const struct drm_display_mode *mode) 784 { 785 struct intel_sdvo_preferred_input_timing_args args; 786 787 memset(&args, 0, sizeof(args)); 788 args.clock = mode->clock / 10; 789 args.width = mode->hdisplay; 790 args.height = mode->vdisplay; 791 args.interlace = 0; 792 793 if (IS_LVDS(intel_sdvo_connector)) { 794 const struct drm_display_mode *fixed_mode = 795 intel_panel_fixed_mode(&intel_sdvo_connector->base, mode); 796 797 if (fixed_mode->hdisplay != args.width || 798 fixed_mode->vdisplay != args.height) 799 args.scaled = 1; 800 } 801 802 return intel_sdvo_set_value(intel_sdvo, 803 SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING, 804 &args, sizeof(args)); 805 } 806 807 static bool intel_sdvo_get_preferred_input_timing(struct intel_sdvo *intel_sdvo, 808 struct intel_sdvo_dtd *dtd) 809 { 810 BUILD_BUG_ON(sizeof(dtd->part1) != 8); 811 BUILD_BUG_ON(sizeof(dtd->part2) != 8); 812 return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1, 813 &dtd->part1, sizeof(dtd->part1)) && 814 intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2, 815 &dtd->part2, sizeof(dtd->part2)); 816 } 817 818 static bool intel_sdvo_set_clock_rate_mult(struct intel_sdvo *intel_sdvo, u8 val) 819 { 820 return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1); 821 } 822 823 static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd, 824 const struct drm_display_mode *mode) 825 { 826 u16 width, height; 827 u16 h_blank_len, h_sync_len, v_blank_len, v_sync_len; 828 u16 h_sync_offset, v_sync_offset; 829 int mode_clock; 830 831 memset(dtd, 0, sizeof(*dtd)); 832 833 width = mode->hdisplay; 834 height = mode->vdisplay; 835 836 /* do some mode translations */ 837 h_blank_len = mode->htotal - mode->hdisplay; 838 h_sync_len = mode->hsync_end - mode->hsync_start; 839 840 v_blank_len = mode->vtotal - mode->vdisplay; 841 v_sync_len = mode->vsync_end - mode->vsync_start; 842 843 h_sync_offset = mode->hsync_start - mode->hdisplay; 844 v_sync_offset = mode->vsync_start - mode->vdisplay; 845 846 mode_clock = mode->clock; 847 mode_clock /= 10; 848 dtd->part1.clock = mode_clock; 849 850 dtd->part1.h_active = width & 0xff; 851 dtd->part1.h_blank = h_blank_len & 0xff; 852 dtd->part1.h_high = (((width >> 8) & 0xf) << 4) | 853 ((h_blank_len >> 8) & 0xf); 854 dtd->part1.v_active = height & 0xff; 855 dtd->part1.v_blank = v_blank_len & 0xff; 856 dtd->part1.v_high = (((height >> 8) & 0xf) << 4) | 857 ((v_blank_len >> 8) & 0xf); 858 859 dtd->part2.h_sync_off = h_sync_offset & 0xff; 860 dtd->part2.h_sync_width = h_sync_len & 0xff; 861 dtd->part2.v_sync_off_width = (v_sync_offset & 0xf) << 4 | 862 (v_sync_len & 0xf); 863 dtd->part2.sync_off_width_high = ((h_sync_offset & 0x300) >> 2) | 864 ((h_sync_len & 0x300) >> 4) | ((v_sync_offset & 0x30) >> 2) | 865 ((v_sync_len & 0x30) >> 4); 866 867 dtd->part2.dtd_flags = 0x18; 868 if (mode->flags & DRM_MODE_FLAG_INTERLACE) 869 dtd->part2.dtd_flags |= DTD_FLAG_INTERLACE; 870 if (mode->flags & DRM_MODE_FLAG_PHSYNC) 871 dtd->part2.dtd_flags |= DTD_FLAG_HSYNC_POSITIVE; 872 if (mode->flags & DRM_MODE_FLAG_PVSYNC) 873 dtd->part2.dtd_flags |= DTD_FLAG_VSYNC_POSITIVE; 874 875 dtd->part2.v_sync_off_high = v_sync_offset & 0xc0; 876 } 877 878 static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode *pmode, 879 const struct intel_sdvo_dtd *dtd) 880 { 881 struct drm_display_mode mode = {}; 882 883 mode.hdisplay = dtd->part1.h_active; 884 mode.hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8; 885 mode.hsync_start = mode.hdisplay + dtd->part2.h_sync_off; 886 mode.hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2; 887 mode.hsync_end = mode.hsync_start + dtd->part2.h_sync_width; 888 mode.hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4; 889 mode.htotal = mode.hdisplay + dtd->part1.h_blank; 890 mode.htotal += (dtd->part1.h_high & 0xf) << 8; 891 892 mode.vdisplay = dtd->part1.v_active; 893 mode.vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8; 894 mode.vsync_start = mode.vdisplay; 895 mode.vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf; 896 mode.vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2; 897 mode.vsync_start += dtd->part2.v_sync_off_high & 0xc0; 898 mode.vsync_end = mode.vsync_start + 899 (dtd->part2.v_sync_off_width & 0xf); 900 mode.vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4; 901 mode.vtotal = mode.vdisplay + dtd->part1.v_blank; 902 mode.vtotal += (dtd->part1.v_high & 0xf) << 8; 903 904 mode.clock = dtd->part1.clock * 10; 905 906 if (dtd->part2.dtd_flags & DTD_FLAG_INTERLACE) 907 mode.flags |= DRM_MODE_FLAG_INTERLACE; 908 if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE) 909 mode.flags |= DRM_MODE_FLAG_PHSYNC; 910 else 911 mode.flags |= DRM_MODE_FLAG_NHSYNC; 912 if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE) 913 mode.flags |= DRM_MODE_FLAG_PVSYNC; 914 else 915 mode.flags |= DRM_MODE_FLAG_NVSYNC; 916 917 drm_mode_set_crtcinfo(&mode, 0); 918 919 drm_mode_copy(pmode, &mode); 920 } 921 922 static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo) 923 { 924 struct intel_sdvo_encode encode; 925 926 BUILD_BUG_ON(sizeof(encode) != 2); 927 return intel_sdvo_get_value(intel_sdvo, 928 SDVO_CMD_GET_SUPP_ENCODE, 929 &encode, sizeof(encode)); 930 } 931 932 static bool intel_sdvo_set_encode(struct intel_sdvo *intel_sdvo, 933 u8 mode) 934 { 935 return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_ENCODE, &mode, 1); 936 } 937 938 static bool intel_sdvo_set_colorimetry(struct intel_sdvo *intel_sdvo, 939 u8 mode) 940 { 941 return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1); 942 } 943 944 static bool intel_sdvo_set_pixel_replication(struct intel_sdvo *intel_sdvo, 945 u8 pixel_repeat) 946 { 947 return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_PIXEL_REPLI, 948 &pixel_repeat, 1); 949 } 950 951 static bool intel_sdvo_set_audio_state(struct intel_sdvo *intel_sdvo, 952 u8 audio_state) 953 { 954 return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_AUDIO_STAT, 955 &audio_state, 1); 956 } 957 958 static bool intel_sdvo_get_hbuf_size(struct intel_sdvo *intel_sdvo, 959 u8 *hbuf_size) 960 { 961 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HBUF_INFO, 962 hbuf_size, 1)) 963 return false; 964 965 /* Buffer size is 0 based, hooray! However zero means zero. */ 966 if (*hbuf_size) 967 (*hbuf_size)++; 968 969 return true; 970 } 971 972 #if 0 973 static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo) 974 { 975 int i, j; 976 u8 set_buf_index[2]; 977 u8 av_split; 978 u8 buf_size; 979 u8 buf[48]; 980 u8 *pos; 981 982 intel_sdvo_get_value(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, &av_split, 1); 983 984 for (i = 0; i <= av_split; i++) { 985 set_buf_index[0] = i; set_buf_index[1] = 0; 986 intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX, 987 set_buf_index, 2); 988 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0); 989 intel_sdvo_read_response(encoder, &buf_size, 1); 990 991 pos = buf; 992 for (j = 0; j <= buf_size; j += 8) { 993 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA, 994 NULL, 0); 995 intel_sdvo_read_response(encoder, pos, 8); 996 pos += 8; 997 } 998 } 999 } 1000 #endif 1001 1002 static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo, 1003 unsigned int if_index, u8 tx_rate, 1004 const u8 *data, unsigned int length) 1005 { 1006 u8 set_buf_index[2] = { if_index, 0 }; 1007 u8 hbuf_size, tmp[8]; 1008 int i; 1009 1010 if (!intel_sdvo_set_value(intel_sdvo, 1011 SDVO_CMD_SET_HBUF_INDEX, 1012 set_buf_index, 2)) 1013 return false; 1014 1015 if (!intel_sdvo_get_hbuf_size(intel_sdvo, &hbuf_size)) 1016 return false; 1017 1018 DRM_DEBUG_KMS("writing sdvo hbuf: %i, length %u, hbuf_size: %i\n", 1019 if_index, length, hbuf_size); 1020 1021 if (hbuf_size < length) 1022 return false; 1023 1024 for (i = 0; i < hbuf_size; i += 8) { 1025 memset(tmp, 0, 8); 1026 if (i < length) 1027 memcpy(tmp, data + i, min_t(unsigned, 8, length - i)); 1028 1029 if (!intel_sdvo_set_value(intel_sdvo, 1030 SDVO_CMD_SET_HBUF_DATA, 1031 tmp, 8)) 1032 return false; 1033 } 1034 1035 return intel_sdvo_set_value(intel_sdvo, 1036 SDVO_CMD_SET_HBUF_TXRATE, 1037 &tx_rate, 1); 1038 } 1039 1040 static ssize_t intel_sdvo_read_infoframe(struct intel_sdvo *intel_sdvo, 1041 unsigned int if_index, 1042 u8 *data, unsigned int length) 1043 { 1044 u8 set_buf_index[2] = { if_index, 0 }; 1045 u8 hbuf_size, tx_rate, av_split; 1046 int i; 1047 1048 if (!intel_sdvo_get_value(intel_sdvo, 1049 SDVO_CMD_GET_HBUF_AV_SPLIT, 1050 &av_split, 1)) 1051 return -ENXIO; 1052 1053 if (av_split < if_index) 1054 return 0; 1055 1056 if (!intel_sdvo_set_value(intel_sdvo, 1057 SDVO_CMD_SET_HBUF_INDEX, 1058 set_buf_index, 2)) 1059 return -ENXIO; 1060 1061 if (!intel_sdvo_get_value(intel_sdvo, 1062 SDVO_CMD_GET_HBUF_TXRATE, 1063 &tx_rate, 1)) 1064 return -ENXIO; 1065 1066 /* TX_DISABLED doesn't mean disabled for ELD */ 1067 if (if_index != SDVO_HBUF_INDEX_ELD && tx_rate == SDVO_HBUF_TX_DISABLED) 1068 return 0; 1069 1070 if (!intel_sdvo_get_hbuf_size(intel_sdvo, &hbuf_size)) 1071 return false; 1072 1073 DRM_DEBUG_KMS("reading sdvo hbuf: %i, length %u, hbuf_size: %i\n", 1074 if_index, length, hbuf_size); 1075 1076 hbuf_size = min_t(unsigned int, length, hbuf_size); 1077 1078 for (i = 0; i < hbuf_size; i += 8) { 1079 if (!intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_GET_HBUF_DATA, NULL, 0)) 1080 return -ENXIO; 1081 if (!intel_sdvo_read_response(intel_sdvo, &data[i], 1082 min_t(unsigned int, 8, hbuf_size - i))) 1083 return -ENXIO; 1084 } 1085 1086 return hbuf_size; 1087 } 1088 1089 static bool intel_sdvo_compute_avi_infoframe(struct intel_sdvo *intel_sdvo, 1090 struct intel_crtc_state *crtc_state, 1091 struct drm_connector_state *conn_state) 1092 { 1093 struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev); 1094 struct hdmi_avi_infoframe *frame = &crtc_state->infoframes.avi.avi; 1095 const struct drm_display_mode *adjusted_mode = 1096 &crtc_state->hw.adjusted_mode; 1097 int ret; 1098 1099 if (!crtc_state->has_hdmi_sink) 1100 return true; 1101 1102 crtc_state->infoframes.enable |= 1103 intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_AVI); 1104 1105 ret = drm_hdmi_avi_infoframe_from_display_mode(frame, 1106 conn_state->connector, 1107 adjusted_mode); 1108 if (ret) 1109 return false; 1110 1111 drm_hdmi_avi_infoframe_quant_range(frame, 1112 conn_state->connector, 1113 adjusted_mode, 1114 crtc_state->limited_color_range ? 1115 HDMI_QUANTIZATION_RANGE_LIMITED : 1116 HDMI_QUANTIZATION_RANGE_FULL); 1117 1118 ret = hdmi_avi_infoframe_check(frame); 1119 if (drm_WARN_ON(&dev_priv->drm, ret)) 1120 return false; 1121 1122 return true; 1123 } 1124 1125 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo, 1126 const struct intel_crtc_state *crtc_state) 1127 { 1128 struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev); 1129 u8 sdvo_data[HDMI_INFOFRAME_SIZE(AVI)]; 1130 const union hdmi_infoframe *frame = &crtc_state->infoframes.avi; 1131 ssize_t len; 1132 1133 if ((crtc_state->infoframes.enable & 1134 intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_AVI)) == 0) 1135 return true; 1136 1137 if (drm_WARN_ON(&dev_priv->drm, 1138 frame->any.type != HDMI_INFOFRAME_TYPE_AVI)) 1139 return false; 1140 1141 len = hdmi_infoframe_pack_only(frame, sdvo_data, sizeof(sdvo_data)); 1142 if (drm_WARN_ON(&dev_priv->drm, len < 0)) 1143 return false; 1144 1145 return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF, 1146 SDVO_HBUF_TX_VSYNC, 1147 sdvo_data, len); 1148 } 1149 1150 static void intel_sdvo_get_avi_infoframe(struct intel_sdvo *intel_sdvo, 1151 struct intel_crtc_state *crtc_state) 1152 { 1153 u8 sdvo_data[HDMI_INFOFRAME_SIZE(AVI)]; 1154 union hdmi_infoframe *frame = &crtc_state->infoframes.avi; 1155 ssize_t len; 1156 int ret; 1157 1158 if (!crtc_state->has_hdmi_sink) 1159 return; 1160 1161 len = intel_sdvo_read_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF, 1162 sdvo_data, sizeof(sdvo_data)); 1163 if (len < 0) { 1164 DRM_DEBUG_KMS("failed to read AVI infoframe\n"); 1165 return; 1166 } else if (len == 0) { 1167 return; 1168 } 1169 1170 crtc_state->infoframes.enable |= 1171 intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_AVI); 1172 1173 ret = hdmi_infoframe_unpack(frame, sdvo_data, len); 1174 if (ret) { 1175 DRM_DEBUG_KMS("Failed to unpack AVI infoframe\n"); 1176 return; 1177 } 1178 1179 if (frame->any.type != HDMI_INFOFRAME_TYPE_AVI) 1180 DRM_DEBUG_KMS("Found the wrong infoframe type 0x%x (expected 0x%02x)\n", 1181 frame->any.type, HDMI_INFOFRAME_TYPE_AVI); 1182 } 1183 1184 static void intel_sdvo_get_eld(struct intel_sdvo *intel_sdvo, 1185 struct intel_crtc_state *crtc_state) 1186 { 1187 struct drm_i915_private *i915 = to_i915(intel_sdvo->base.base.dev); 1188 ssize_t len; 1189 u8 val; 1190 1191 if (!crtc_state->has_audio) 1192 return; 1193 1194 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_AUDIO_STAT, &val, 1)) 1195 return; 1196 1197 if ((val & SDVO_AUDIO_ELD_VALID) == 0) 1198 return; 1199 1200 len = intel_sdvo_read_infoframe(intel_sdvo, SDVO_HBUF_INDEX_ELD, 1201 crtc_state->eld, sizeof(crtc_state->eld)); 1202 if (len < 0) 1203 drm_dbg_kms(&i915->drm, "failed to read ELD\n"); 1204 } 1205 1206 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo, 1207 const struct drm_connector_state *conn_state) 1208 { 1209 struct intel_sdvo_tv_format format; 1210 u32 format_map; 1211 1212 format_map = 1 << conn_state->tv.mode; 1213 memset(&format, 0, sizeof(format)); 1214 memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map))); 1215 1216 BUILD_BUG_ON(sizeof(format) != 6); 1217 return intel_sdvo_set_value(intel_sdvo, 1218 SDVO_CMD_SET_TV_FORMAT, 1219 &format, sizeof(format)); 1220 } 1221 1222 static bool 1223 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo, 1224 struct intel_sdvo_connector *intel_sdvo_connector, 1225 const struct drm_display_mode *mode) 1226 { 1227 struct intel_sdvo_dtd output_dtd; 1228 1229 if (!intel_sdvo_set_target_output(intel_sdvo, 1230 intel_sdvo_connector->output_flag)) 1231 return false; 1232 1233 intel_sdvo_get_dtd_from_mode(&output_dtd, mode); 1234 if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd)) 1235 return false; 1236 1237 return true; 1238 } 1239 1240 /* 1241 * Asks the sdvo controller for the preferred input mode given the output mode. 1242 * Unfortunately we have to set up the full output mode to do that. 1243 */ 1244 static bool 1245 intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo, 1246 struct intel_sdvo_connector *intel_sdvo_connector, 1247 const struct drm_display_mode *mode, 1248 struct drm_display_mode *adjusted_mode) 1249 { 1250 struct intel_sdvo_dtd input_dtd; 1251 1252 /* Reset the input timing to the screen. Assume always input 0. */ 1253 if (!intel_sdvo_set_target_input(intel_sdvo)) 1254 return false; 1255 1256 if (!intel_sdvo_create_preferred_input_timing(intel_sdvo, 1257 intel_sdvo_connector, 1258 mode)) 1259 return false; 1260 1261 if (!intel_sdvo_get_preferred_input_timing(intel_sdvo, 1262 &input_dtd)) 1263 return false; 1264 1265 intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd); 1266 intel_sdvo->dtd_sdvo_flags = input_dtd.part2.sdvo_flags; 1267 1268 return true; 1269 } 1270 1271 static int i9xx_adjust_sdvo_tv_clock(struct intel_crtc_state *pipe_config) 1272 { 1273 struct drm_i915_private *dev_priv = to_i915(pipe_config->uapi.crtc->dev); 1274 unsigned int dotclock = pipe_config->hw.adjusted_mode.crtc_clock; 1275 struct dpll *clock = &pipe_config->dpll; 1276 1277 /* 1278 * SDVO TV has fixed PLL values depend on its clock range, 1279 * this mirrors vbios setting. 1280 */ 1281 if (dotclock >= 100000 && dotclock < 140500) { 1282 clock->p1 = 2; 1283 clock->p2 = 10; 1284 clock->n = 3; 1285 clock->m1 = 16; 1286 clock->m2 = 8; 1287 } else if (dotclock >= 140500 && dotclock <= 200000) { 1288 clock->p1 = 1; 1289 clock->p2 = 10; 1290 clock->n = 6; 1291 clock->m1 = 12; 1292 clock->m2 = 8; 1293 } else { 1294 drm_dbg_kms(&dev_priv->drm, 1295 "SDVO TV clock out of range: %i\n", dotclock); 1296 return -EINVAL; 1297 } 1298 1299 pipe_config->clock_set = true; 1300 1301 return 0; 1302 } 1303 1304 static bool intel_has_hdmi_sink(struct intel_sdvo_connector *intel_sdvo_connector, 1305 const struct drm_connector_state *conn_state) 1306 { 1307 struct drm_connector *connector = conn_state->connector; 1308 1309 return intel_sdvo_connector->is_hdmi && 1310 connector->display_info.is_hdmi && 1311 READ_ONCE(to_intel_digital_connector_state(conn_state)->force_audio) != HDMI_AUDIO_OFF_DVI; 1312 } 1313 1314 static bool intel_sdvo_limited_color_range(struct intel_encoder *encoder, 1315 const struct intel_crtc_state *crtc_state, 1316 const struct drm_connector_state *conn_state) 1317 { 1318 struct intel_sdvo *intel_sdvo = to_sdvo(encoder); 1319 1320 if ((intel_sdvo->colorimetry_cap & SDVO_COLORIMETRY_RGB220) == 0) 1321 return false; 1322 1323 return intel_hdmi_limited_color_range(crtc_state, conn_state); 1324 } 1325 1326 static bool intel_sdvo_has_audio(struct intel_encoder *encoder, 1327 const struct intel_crtc_state *crtc_state, 1328 const struct drm_connector_state *conn_state) 1329 { 1330 struct drm_connector *connector = conn_state->connector; 1331 struct intel_sdvo_connector *intel_sdvo_connector = 1332 to_intel_sdvo_connector(connector); 1333 const struct intel_digital_connector_state *intel_conn_state = 1334 to_intel_digital_connector_state(conn_state); 1335 1336 if (!crtc_state->has_hdmi_sink) 1337 return false; 1338 1339 if (intel_conn_state->force_audio == HDMI_AUDIO_AUTO) 1340 return intel_sdvo_connector->is_hdmi && 1341 connector->display_info.has_audio; 1342 else 1343 return intel_conn_state->force_audio == HDMI_AUDIO_ON; 1344 } 1345 1346 static int intel_sdvo_compute_config(struct intel_encoder *encoder, 1347 struct intel_crtc_state *pipe_config, 1348 struct drm_connector_state *conn_state) 1349 { 1350 struct intel_sdvo *intel_sdvo = to_sdvo(encoder); 1351 struct intel_sdvo_connector *intel_sdvo_connector = 1352 to_intel_sdvo_connector(conn_state->connector); 1353 struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode; 1354 struct drm_display_mode *mode = &pipe_config->hw.mode; 1355 1356 if (HAS_PCH_SPLIT(to_i915(encoder->base.dev))) { 1357 pipe_config->has_pch_encoder = true; 1358 if (!intel_fdi_compute_pipe_bpp(pipe_config)) 1359 return -EINVAL; 1360 } 1361 1362 DRM_DEBUG_KMS("forcing bpc to 8 for SDVO\n"); 1363 /* FIXME: Don't increase pipe_bpp */ 1364 pipe_config->pipe_bpp = 8*3; 1365 pipe_config->sink_format = INTEL_OUTPUT_FORMAT_RGB; 1366 pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB; 1367 1368 /* 1369 * We need to construct preferred input timings based on our 1370 * output timings. To do that, we have to set the output 1371 * timings, even though this isn't really the right place in 1372 * the sequence to do it. Oh well. 1373 */ 1374 if (IS_TV(intel_sdvo_connector)) { 1375 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, 1376 intel_sdvo_connector, 1377 mode)) 1378 return -EINVAL; 1379 1380 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo, 1381 intel_sdvo_connector, 1382 mode, 1383 adjusted_mode); 1384 pipe_config->sdvo_tv_clock = true; 1385 } else if (IS_LVDS(intel_sdvo_connector)) { 1386 const struct drm_display_mode *fixed_mode = 1387 intel_panel_fixed_mode(&intel_sdvo_connector->base, mode); 1388 int ret; 1389 1390 ret = intel_panel_compute_config(&intel_sdvo_connector->base, 1391 adjusted_mode); 1392 if (ret) 1393 return ret; 1394 1395 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, 1396 intel_sdvo_connector, 1397 fixed_mode)) 1398 return -EINVAL; 1399 1400 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo, 1401 intel_sdvo_connector, 1402 mode, 1403 adjusted_mode); 1404 } 1405 1406 if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN) 1407 return -EINVAL; 1408 1409 /* 1410 * Make the CRTC code factor in the SDVO pixel multiplier. The 1411 * SDVO device will factor out the multiplier during mode_set. 1412 */ 1413 pipe_config->pixel_multiplier = 1414 intel_sdvo_get_pixel_multiplier(adjusted_mode); 1415 1416 pipe_config->has_hdmi_sink = intel_has_hdmi_sink(intel_sdvo_connector, conn_state); 1417 1418 pipe_config->has_audio = 1419 intel_sdvo_has_audio(encoder, pipe_config, conn_state) && 1420 intel_audio_compute_config(encoder, pipe_config, conn_state); 1421 1422 pipe_config->limited_color_range = 1423 intel_sdvo_limited_color_range(encoder, pipe_config, 1424 conn_state); 1425 1426 /* Clock computation needs to happen after pixel multiplier. */ 1427 if (IS_TV(intel_sdvo_connector)) { 1428 int ret; 1429 1430 ret = i9xx_adjust_sdvo_tv_clock(pipe_config); 1431 if (ret) 1432 return ret; 1433 } 1434 1435 if (conn_state->picture_aspect_ratio) 1436 adjusted_mode->picture_aspect_ratio = 1437 conn_state->picture_aspect_ratio; 1438 1439 if (!intel_sdvo_compute_avi_infoframe(intel_sdvo, 1440 pipe_config, conn_state)) { 1441 DRM_DEBUG_KMS("bad AVI infoframe\n"); 1442 return -EINVAL; 1443 } 1444 1445 return 0; 1446 } 1447 1448 #define UPDATE_PROPERTY(input, NAME) \ 1449 do { \ 1450 val = input; \ 1451 intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_##NAME, &val, sizeof(val)); \ 1452 } while (0) 1453 1454 static void intel_sdvo_update_props(struct intel_sdvo *intel_sdvo, 1455 const struct intel_sdvo_connector_state *sdvo_state) 1456 { 1457 const struct drm_connector_state *conn_state = &sdvo_state->base.base; 1458 struct intel_sdvo_connector *intel_sdvo_conn = 1459 to_intel_sdvo_connector(conn_state->connector); 1460 u16 val; 1461 1462 if (intel_sdvo_conn->left) 1463 UPDATE_PROPERTY(sdvo_state->tv.overscan_h, OVERSCAN_H); 1464 1465 if (intel_sdvo_conn->top) 1466 UPDATE_PROPERTY(sdvo_state->tv.overscan_v, OVERSCAN_V); 1467 1468 if (intel_sdvo_conn->hpos) 1469 UPDATE_PROPERTY(sdvo_state->tv.hpos, HPOS); 1470 1471 if (intel_sdvo_conn->vpos) 1472 UPDATE_PROPERTY(sdvo_state->tv.vpos, VPOS); 1473 1474 if (intel_sdvo_conn->saturation) 1475 UPDATE_PROPERTY(conn_state->tv.saturation, SATURATION); 1476 1477 if (intel_sdvo_conn->contrast) 1478 UPDATE_PROPERTY(conn_state->tv.contrast, CONTRAST); 1479 1480 if (intel_sdvo_conn->hue) 1481 UPDATE_PROPERTY(conn_state->tv.hue, HUE); 1482 1483 if (intel_sdvo_conn->brightness) 1484 UPDATE_PROPERTY(conn_state->tv.brightness, BRIGHTNESS); 1485 1486 if (intel_sdvo_conn->sharpness) 1487 UPDATE_PROPERTY(sdvo_state->tv.sharpness, SHARPNESS); 1488 1489 if (intel_sdvo_conn->flicker_filter) 1490 UPDATE_PROPERTY(sdvo_state->tv.flicker_filter, FLICKER_FILTER); 1491 1492 if (intel_sdvo_conn->flicker_filter_2d) 1493 UPDATE_PROPERTY(sdvo_state->tv.flicker_filter_2d, FLICKER_FILTER_2D); 1494 1495 if (intel_sdvo_conn->flicker_filter_adaptive) 1496 UPDATE_PROPERTY(sdvo_state->tv.flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE); 1497 1498 if (intel_sdvo_conn->tv_chroma_filter) 1499 UPDATE_PROPERTY(sdvo_state->tv.chroma_filter, TV_CHROMA_FILTER); 1500 1501 if (intel_sdvo_conn->tv_luma_filter) 1502 UPDATE_PROPERTY(sdvo_state->tv.luma_filter, TV_LUMA_FILTER); 1503 1504 if (intel_sdvo_conn->dot_crawl) 1505 UPDATE_PROPERTY(sdvo_state->tv.dot_crawl, DOT_CRAWL); 1506 1507 #undef UPDATE_PROPERTY 1508 } 1509 1510 static void intel_sdvo_pre_enable(struct intel_atomic_state *state, 1511 struct intel_encoder *intel_encoder, 1512 const struct intel_crtc_state *crtc_state, 1513 const struct drm_connector_state *conn_state) 1514 { 1515 struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev); 1516 struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); 1517 const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; 1518 const struct intel_sdvo_connector_state *sdvo_state = 1519 to_intel_sdvo_connector_state(conn_state); 1520 struct intel_sdvo_connector *intel_sdvo_connector = 1521 to_intel_sdvo_connector(conn_state->connector); 1522 const struct drm_display_mode *mode = &crtc_state->hw.mode; 1523 struct intel_sdvo *intel_sdvo = to_sdvo(intel_encoder); 1524 u32 sdvox; 1525 struct intel_sdvo_in_out_map in_out; 1526 struct intel_sdvo_dtd input_dtd, output_dtd; 1527 int rate; 1528 1529 intel_sdvo_update_props(intel_sdvo, sdvo_state); 1530 1531 /* 1532 * First, set the input mapping for the first input to our controlled 1533 * output. This is only correct if we're a single-input device, in 1534 * which case the first input is the output from the appropriate SDVO 1535 * channel on the motherboard. In a two-input device, the first input 1536 * will be SDVOB and the second SDVOC. 1537 */ 1538 in_out.in0 = intel_sdvo_connector->output_flag; 1539 in_out.in1 = 0; 1540 1541 intel_sdvo_set_value(intel_sdvo, 1542 SDVO_CMD_SET_IN_OUT_MAP, 1543 &in_out, sizeof(in_out)); 1544 1545 /* Set the output timings to the screen */ 1546 if (!intel_sdvo_set_target_output(intel_sdvo, 1547 intel_sdvo_connector->output_flag)) 1548 return; 1549 1550 /* lvds has a special fixed output timing. */ 1551 if (IS_LVDS(intel_sdvo_connector)) { 1552 const struct drm_display_mode *fixed_mode = 1553 intel_panel_fixed_mode(&intel_sdvo_connector->base, mode); 1554 1555 intel_sdvo_get_dtd_from_mode(&output_dtd, fixed_mode); 1556 } else { 1557 intel_sdvo_get_dtd_from_mode(&output_dtd, mode); 1558 } 1559 if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd)) 1560 drm_info(&dev_priv->drm, 1561 "Setting output timings on %s failed\n", 1562 SDVO_NAME(intel_sdvo)); 1563 1564 /* Set the input timing to the screen. Assume always input 0. */ 1565 if (!intel_sdvo_set_target_input(intel_sdvo)) 1566 return; 1567 1568 if (crtc_state->has_hdmi_sink) { 1569 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI); 1570 intel_sdvo_set_colorimetry(intel_sdvo, 1571 crtc_state->limited_color_range ? 1572 SDVO_COLORIMETRY_RGB220 : 1573 SDVO_COLORIMETRY_RGB256); 1574 intel_sdvo_set_avi_infoframe(intel_sdvo, crtc_state); 1575 intel_sdvo_set_pixel_replication(intel_sdvo, 1576 !!(adjusted_mode->flags & 1577 DRM_MODE_FLAG_DBLCLK)); 1578 } else 1579 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI); 1580 1581 if (IS_TV(intel_sdvo_connector) && 1582 !intel_sdvo_set_tv_format(intel_sdvo, conn_state)) 1583 return; 1584 1585 intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode); 1586 1587 if (IS_TV(intel_sdvo_connector) || IS_LVDS(intel_sdvo_connector)) 1588 input_dtd.part2.sdvo_flags = intel_sdvo->dtd_sdvo_flags; 1589 if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd)) 1590 drm_info(&dev_priv->drm, 1591 "Setting input timings on %s failed\n", 1592 SDVO_NAME(intel_sdvo)); 1593 1594 switch (crtc_state->pixel_multiplier) { 1595 default: 1596 drm_WARN(&dev_priv->drm, 1, 1597 "unknown pixel multiplier specified\n"); 1598 fallthrough; 1599 case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break; 1600 case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break; 1601 case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break; 1602 } 1603 if (!intel_sdvo_set_clock_rate_mult(intel_sdvo, rate)) 1604 return; 1605 1606 /* Set the SDVO control regs. */ 1607 if (DISPLAY_VER(dev_priv) >= 4) { 1608 /* The real mode polarity is set by the SDVO commands, using 1609 * struct intel_sdvo_dtd. */ 1610 sdvox = SDVO_VSYNC_ACTIVE_HIGH | SDVO_HSYNC_ACTIVE_HIGH; 1611 if (DISPLAY_VER(dev_priv) < 5) 1612 sdvox |= SDVO_BORDER_ENABLE; 1613 } else { 1614 sdvox = intel_de_read(dev_priv, intel_sdvo->sdvo_reg); 1615 if (intel_sdvo->base.port == PORT_B) 1616 sdvox &= SDVOB_PRESERVE_MASK; 1617 else 1618 sdvox &= SDVOC_PRESERVE_MASK; 1619 sdvox |= (9 << 19) | SDVO_BORDER_ENABLE; 1620 } 1621 1622 if (HAS_PCH_CPT(dev_priv)) 1623 sdvox |= SDVO_PIPE_SEL_CPT(crtc->pipe); 1624 else 1625 sdvox |= SDVO_PIPE_SEL(crtc->pipe); 1626 1627 if (DISPLAY_VER(dev_priv) >= 4) { 1628 /* done in crtc_mode_set as the dpll_md reg must be written early */ 1629 } else if (IS_I945G(dev_priv) || IS_I945GM(dev_priv) || 1630 IS_G33(dev_priv) || IS_PINEVIEW(dev_priv)) { 1631 /* done in crtc_mode_set as it lives inside the dpll register */ 1632 } else { 1633 sdvox |= (crtc_state->pixel_multiplier - 1) 1634 << SDVO_PORT_MULTIPLY_SHIFT; 1635 } 1636 1637 if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL && 1638 DISPLAY_VER(dev_priv) < 5) 1639 sdvox |= SDVO_STALL_SELECT; 1640 intel_sdvo_write_sdvox(intel_sdvo, sdvox); 1641 } 1642 1643 static bool intel_sdvo_connector_get_hw_state(struct intel_connector *connector) 1644 { 1645 struct intel_sdvo_connector *intel_sdvo_connector = 1646 to_intel_sdvo_connector(&connector->base); 1647 struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector); 1648 u16 active_outputs = 0; 1649 1650 intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs); 1651 1652 return active_outputs & intel_sdvo_connector->output_flag; 1653 } 1654 1655 bool intel_sdvo_port_enabled(struct drm_i915_private *dev_priv, 1656 i915_reg_t sdvo_reg, enum pipe *pipe) 1657 { 1658 u32 val; 1659 1660 val = intel_de_read(dev_priv, sdvo_reg); 1661 1662 /* asserts want to know the pipe even if the port is disabled */ 1663 if (HAS_PCH_CPT(dev_priv)) 1664 *pipe = (val & SDVO_PIPE_SEL_MASK_CPT) >> SDVO_PIPE_SEL_SHIFT_CPT; 1665 else if (IS_CHERRYVIEW(dev_priv)) 1666 *pipe = (val & SDVO_PIPE_SEL_MASK_CHV) >> SDVO_PIPE_SEL_SHIFT_CHV; 1667 else 1668 *pipe = (val & SDVO_PIPE_SEL_MASK) >> SDVO_PIPE_SEL_SHIFT; 1669 1670 return val & SDVO_ENABLE; 1671 } 1672 1673 static bool intel_sdvo_get_hw_state(struct intel_encoder *encoder, 1674 enum pipe *pipe) 1675 { 1676 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); 1677 struct intel_sdvo *intel_sdvo = to_sdvo(encoder); 1678 u16 active_outputs = 0; 1679 bool ret; 1680 1681 intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs); 1682 1683 ret = intel_sdvo_port_enabled(dev_priv, intel_sdvo->sdvo_reg, pipe); 1684 1685 return ret || active_outputs; 1686 } 1687 1688 static void intel_sdvo_get_config(struct intel_encoder *encoder, 1689 struct intel_crtc_state *pipe_config) 1690 { 1691 struct drm_device *dev = encoder->base.dev; 1692 struct drm_i915_private *dev_priv = to_i915(dev); 1693 struct intel_sdvo *intel_sdvo = to_sdvo(encoder); 1694 struct intel_sdvo_dtd dtd; 1695 int encoder_pixel_multiplier = 0; 1696 int dotclock; 1697 u32 flags = 0, sdvox; 1698 u8 val; 1699 bool ret; 1700 1701 pipe_config->output_types |= BIT(INTEL_OUTPUT_SDVO); 1702 1703 sdvox = intel_de_read(dev_priv, intel_sdvo->sdvo_reg); 1704 1705 ret = intel_sdvo_get_input_timing(intel_sdvo, &dtd); 1706 if (!ret) { 1707 /* 1708 * Some sdvo encoders are not spec compliant and don't 1709 * implement the mandatory get_timings function. 1710 */ 1711 drm_dbg(&dev_priv->drm, "failed to retrieve SDVO DTD\n"); 1712 pipe_config->quirks |= PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS; 1713 } else { 1714 if (dtd.part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE) 1715 flags |= DRM_MODE_FLAG_PHSYNC; 1716 else 1717 flags |= DRM_MODE_FLAG_NHSYNC; 1718 1719 if (dtd.part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE) 1720 flags |= DRM_MODE_FLAG_PVSYNC; 1721 else 1722 flags |= DRM_MODE_FLAG_NVSYNC; 1723 } 1724 1725 pipe_config->hw.adjusted_mode.flags |= flags; 1726 1727 /* 1728 * pixel multiplier readout is tricky: Only on i915g/gm it is stored in 1729 * the sdvo port register, on all other platforms it is part of the dpll 1730 * state. Since the general pipe state readout happens before the 1731 * encoder->get_config we so already have a valid pixel multplier on all 1732 * other platfroms. 1733 */ 1734 if (IS_I915G(dev_priv) || IS_I915GM(dev_priv)) { 1735 pipe_config->pixel_multiplier = 1736 ((sdvox & SDVO_PORT_MULTIPLY_MASK) 1737 >> SDVO_PORT_MULTIPLY_SHIFT) + 1; 1738 } 1739 1740 dotclock = pipe_config->port_clock; 1741 1742 if (pipe_config->pixel_multiplier) 1743 dotclock /= pipe_config->pixel_multiplier; 1744 1745 pipe_config->hw.adjusted_mode.crtc_clock = dotclock; 1746 1747 /* Cross check the port pixel multiplier with the sdvo encoder state. */ 1748 if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_CLOCK_RATE_MULT, 1749 &val, 1)) { 1750 switch (val) { 1751 case SDVO_CLOCK_RATE_MULT_1X: 1752 encoder_pixel_multiplier = 1; 1753 break; 1754 case SDVO_CLOCK_RATE_MULT_2X: 1755 encoder_pixel_multiplier = 2; 1756 break; 1757 case SDVO_CLOCK_RATE_MULT_4X: 1758 encoder_pixel_multiplier = 4; 1759 break; 1760 } 1761 } 1762 1763 drm_WARN(dev, 1764 encoder_pixel_multiplier != pipe_config->pixel_multiplier, 1765 "SDVO pixel multiplier mismatch, port: %i, encoder: %i\n", 1766 pipe_config->pixel_multiplier, encoder_pixel_multiplier); 1767 1768 if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_COLORIMETRY, 1769 &val, 1)) { 1770 if (val == SDVO_COLORIMETRY_RGB220) 1771 pipe_config->limited_color_range = true; 1772 } 1773 1774 if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_AUDIO_STAT, 1775 &val, 1)) { 1776 if (val & SDVO_AUDIO_PRESENCE_DETECT) 1777 pipe_config->has_audio = true; 1778 } 1779 1780 if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ENCODE, 1781 &val, 1)) { 1782 if (val == SDVO_ENCODE_HDMI) 1783 pipe_config->has_hdmi_sink = true; 1784 } 1785 1786 intel_sdvo_get_avi_infoframe(intel_sdvo, pipe_config); 1787 1788 intel_sdvo_get_eld(intel_sdvo, pipe_config); 1789 } 1790 1791 static void intel_sdvo_disable_audio(struct intel_encoder *encoder, 1792 const struct intel_crtc_state *old_crtc_state, 1793 const struct drm_connector_state *old_conn_state) 1794 { 1795 struct intel_sdvo *intel_sdvo = to_sdvo(encoder); 1796 1797 if (!old_crtc_state->has_audio) 1798 return; 1799 1800 intel_sdvo_set_audio_state(intel_sdvo, 0); 1801 } 1802 1803 static void intel_sdvo_enable_audio(struct intel_encoder *encoder, 1804 const struct intel_crtc_state *crtc_state, 1805 const struct drm_connector_state *conn_state) 1806 { 1807 struct intel_sdvo *intel_sdvo = to_sdvo(encoder); 1808 const u8 *eld = crtc_state->eld; 1809 1810 if (!crtc_state->has_audio) 1811 return; 1812 1813 intel_sdvo_set_audio_state(intel_sdvo, 0); 1814 1815 intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_ELD, 1816 SDVO_HBUF_TX_DISABLED, 1817 eld, drm_eld_size(eld)); 1818 1819 intel_sdvo_set_audio_state(intel_sdvo, SDVO_AUDIO_ELD_VALID | 1820 SDVO_AUDIO_PRESENCE_DETECT); 1821 } 1822 1823 static void intel_disable_sdvo(struct intel_atomic_state *state, 1824 struct intel_encoder *encoder, 1825 const struct intel_crtc_state *old_crtc_state, 1826 const struct drm_connector_state *conn_state) 1827 { 1828 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); 1829 struct intel_sdvo *intel_sdvo = to_sdvo(encoder); 1830 struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->uapi.crtc); 1831 u32 temp; 1832 1833 encoder->audio_disable(encoder, old_crtc_state, conn_state); 1834 1835 intel_sdvo_set_active_outputs(intel_sdvo, 0); 1836 if (0) 1837 intel_sdvo_set_encoder_power_state(intel_sdvo, 1838 DRM_MODE_DPMS_OFF); 1839 1840 temp = intel_de_read(dev_priv, intel_sdvo->sdvo_reg); 1841 1842 temp &= ~SDVO_ENABLE; 1843 intel_sdvo_write_sdvox(intel_sdvo, temp); 1844 1845 /* 1846 * HW workaround for IBX, we need to move the port 1847 * to transcoder A after disabling it to allow the 1848 * matching DP port to be enabled on transcoder A. 1849 */ 1850 if (HAS_PCH_IBX(dev_priv) && crtc->pipe == PIPE_B) { 1851 /* 1852 * We get CPU/PCH FIFO underruns on the other pipe when 1853 * doing the workaround. Sweep them under the rug. 1854 */ 1855 intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, false); 1856 intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false); 1857 1858 temp &= ~SDVO_PIPE_SEL_MASK; 1859 temp |= SDVO_ENABLE | SDVO_PIPE_SEL(PIPE_A); 1860 intel_sdvo_write_sdvox(intel_sdvo, temp); 1861 1862 temp &= ~SDVO_ENABLE; 1863 intel_sdvo_write_sdvox(intel_sdvo, temp); 1864 1865 intel_wait_for_vblank_if_active(dev_priv, PIPE_A); 1866 intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, true); 1867 intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true); 1868 } 1869 } 1870 1871 static void pch_disable_sdvo(struct intel_atomic_state *state, 1872 struct intel_encoder *encoder, 1873 const struct intel_crtc_state *old_crtc_state, 1874 const struct drm_connector_state *old_conn_state) 1875 { 1876 } 1877 1878 static void pch_post_disable_sdvo(struct intel_atomic_state *state, 1879 struct intel_encoder *encoder, 1880 const struct intel_crtc_state *old_crtc_state, 1881 const struct drm_connector_state *old_conn_state) 1882 { 1883 intel_disable_sdvo(state, encoder, old_crtc_state, old_conn_state); 1884 } 1885 1886 static void intel_enable_sdvo(struct intel_atomic_state *state, 1887 struct intel_encoder *encoder, 1888 const struct intel_crtc_state *pipe_config, 1889 const struct drm_connector_state *conn_state) 1890 { 1891 struct drm_device *dev = encoder->base.dev; 1892 struct drm_i915_private *dev_priv = to_i915(dev); 1893 struct intel_sdvo *intel_sdvo = to_sdvo(encoder); 1894 struct intel_sdvo_connector *intel_sdvo_connector = 1895 to_intel_sdvo_connector(conn_state->connector); 1896 struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc); 1897 u32 temp; 1898 bool input1, input2; 1899 int i; 1900 bool success; 1901 1902 temp = intel_de_read(dev_priv, intel_sdvo->sdvo_reg); 1903 temp |= SDVO_ENABLE; 1904 intel_sdvo_write_sdvox(intel_sdvo, temp); 1905 1906 for (i = 0; i < 2; i++) 1907 intel_crtc_wait_for_next_vblank(crtc); 1908 1909 success = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2); 1910 /* 1911 * Warn if the device reported failure to sync. 1912 * 1913 * A lot of SDVO devices fail to notify of sync, but it's 1914 * a given it the status is a success, we succeeded. 1915 */ 1916 if (success && !input1) { 1917 drm_dbg_kms(&dev_priv->drm, 1918 "First %s output reported failure to " 1919 "sync\n", SDVO_NAME(intel_sdvo)); 1920 } 1921 1922 if (0) 1923 intel_sdvo_set_encoder_power_state(intel_sdvo, 1924 DRM_MODE_DPMS_ON); 1925 intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo_connector->output_flag); 1926 1927 encoder->audio_enable(encoder, pipe_config, conn_state); 1928 } 1929 1930 static enum drm_mode_status 1931 intel_sdvo_mode_valid(struct drm_connector *connector, 1932 struct drm_display_mode *mode) 1933 { 1934 struct drm_i915_private *i915 = to_i915(connector->dev); 1935 struct intel_sdvo *intel_sdvo = intel_attached_sdvo(to_intel_connector(connector)); 1936 struct intel_sdvo_connector *intel_sdvo_connector = 1937 to_intel_sdvo_connector(connector); 1938 bool has_hdmi_sink = intel_has_hdmi_sink(intel_sdvo_connector, connector->state); 1939 int max_dotclk = i915->max_dotclk_freq; 1940 enum drm_mode_status status; 1941 int clock = mode->clock; 1942 1943 status = intel_cpu_transcoder_mode_valid(i915, mode); 1944 if (status != MODE_OK) 1945 return status; 1946 1947 if (mode->flags & DRM_MODE_FLAG_DBLSCAN) 1948 return MODE_NO_DBLESCAN; 1949 1950 if (clock > max_dotclk) 1951 return MODE_CLOCK_HIGH; 1952 1953 if (mode->flags & DRM_MODE_FLAG_DBLCLK) { 1954 if (!has_hdmi_sink) 1955 return MODE_CLOCK_LOW; 1956 clock *= 2; 1957 } 1958 1959 if (intel_sdvo->pixel_clock_min > clock) 1960 return MODE_CLOCK_LOW; 1961 1962 if (intel_sdvo->pixel_clock_max < clock) 1963 return MODE_CLOCK_HIGH; 1964 1965 if (IS_LVDS(intel_sdvo_connector)) { 1966 enum drm_mode_status status; 1967 1968 status = intel_panel_mode_valid(&intel_sdvo_connector->base, mode); 1969 if (status != MODE_OK) 1970 return status; 1971 } 1972 1973 return MODE_OK; 1974 } 1975 1976 static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct intel_sdvo_caps *caps) 1977 { 1978 BUILD_BUG_ON(sizeof(*caps) != 8); 1979 if (!intel_sdvo_get_value(intel_sdvo, 1980 SDVO_CMD_GET_DEVICE_CAPS, 1981 caps, sizeof(*caps))) 1982 return false; 1983 1984 DRM_DEBUG_KMS("SDVO capabilities:\n" 1985 " vendor_id: %d\n" 1986 " device_id: %d\n" 1987 " device_rev_id: %d\n" 1988 " sdvo_version_major: %d\n" 1989 " sdvo_version_minor: %d\n" 1990 " sdvo_num_inputs: %d\n" 1991 " smooth_scaling: %d\n" 1992 " sharp_scaling: %d\n" 1993 " up_scaling: %d\n" 1994 " down_scaling: %d\n" 1995 " stall_support: %d\n" 1996 " output_flags: %d\n", 1997 caps->vendor_id, 1998 caps->device_id, 1999 caps->device_rev_id, 2000 caps->sdvo_version_major, 2001 caps->sdvo_version_minor, 2002 caps->sdvo_num_inputs, 2003 caps->smooth_scaling, 2004 caps->sharp_scaling, 2005 caps->up_scaling, 2006 caps->down_scaling, 2007 caps->stall_support, 2008 caps->output_flags); 2009 2010 return true; 2011 } 2012 2013 static u8 intel_sdvo_get_colorimetry_cap(struct intel_sdvo *intel_sdvo) 2014 { 2015 u8 cap; 2016 2017 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_COLORIMETRY_CAP, 2018 &cap, sizeof(cap))) 2019 return SDVO_COLORIMETRY_RGB256; 2020 2021 return cap; 2022 } 2023 2024 static u16 intel_sdvo_get_hotplug_support(struct intel_sdvo *intel_sdvo) 2025 { 2026 struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev); 2027 u16 hotplug; 2028 2029 if (!I915_HAS_HOTPLUG(dev_priv)) 2030 return 0; 2031 2032 /* 2033 * HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise 2034 * on the line. 2035 */ 2036 if (IS_I945G(dev_priv) || IS_I945GM(dev_priv)) 2037 return 0; 2038 2039 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT, 2040 &hotplug, sizeof(hotplug))) 2041 return 0; 2042 2043 return hotplug; 2044 } 2045 2046 static void intel_sdvo_enable_hotplug(struct intel_encoder *encoder) 2047 { 2048 struct intel_sdvo *intel_sdvo = to_sdvo(encoder); 2049 2050 intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG, 2051 &intel_sdvo->hotplug_active, 2); 2052 } 2053 2054 static enum intel_hotplug_state 2055 intel_sdvo_hotplug(struct intel_encoder *encoder, 2056 struct intel_connector *connector) 2057 { 2058 intel_sdvo_enable_hotplug(encoder); 2059 2060 return intel_encoder_hotplug(encoder, connector); 2061 } 2062 2063 static const struct drm_edid * 2064 intel_sdvo_get_edid(struct drm_connector *connector) 2065 { 2066 struct i2c_adapter *ddc = connector->ddc; 2067 2068 if (!ddc) 2069 return NULL; 2070 2071 return drm_edid_read_ddc(connector, ddc); 2072 } 2073 2074 /* Mac mini hack -- use the same DDC as the analog connector */ 2075 static const struct drm_edid * 2076 intel_sdvo_get_analog_edid(struct drm_connector *connector) 2077 { 2078 struct drm_i915_private *i915 = to_i915(connector->dev); 2079 struct i2c_adapter *ddc; 2080 2081 ddc = intel_gmbus_get_adapter(i915, i915->display.vbt.crt_ddc_pin); 2082 if (!ddc) 2083 return NULL; 2084 2085 return drm_edid_read_ddc(connector, ddc); 2086 } 2087 2088 static enum drm_connector_status 2089 intel_sdvo_tmds_sink_detect(struct drm_connector *connector) 2090 { 2091 enum drm_connector_status status; 2092 const struct drm_edid *drm_edid; 2093 2094 drm_edid = intel_sdvo_get_edid(connector); 2095 2096 /* 2097 * When there is no edid and no monitor is connected with VGA 2098 * port, try to use the CRT ddc to read the EDID for DVI-connector. 2099 */ 2100 if (!drm_edid) 2101 drm_edid = intel_sdvo_get_analog_edid(connector); 2102 2103 status = connector_status_unknown; 2104 if (drm_edid) { 2105 /* DDC bus is shared, match EDID to connector type */ 2106 if (drm_edid_is_digital(drm_edid)) 2107 status = connector_status_connected; 2108 else 2109 status = connector_status_disconnected; 2110 drm_edid_free(drm_edid); 2111 } 2112 2113 return status; 2114 } 2115 2116 static bool 2117 intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo, 2118 const struct drm_edid *drm_edid) 2119 { 2120 bool monitor_is_digital = drm_edid_is_digital(drm_edid); 2121 bool connector_is_digital = !!IS_DIGITAL(sdvo); 2122 2123 DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n", 2124 connector_is_digital, monitor_is_digital); 2125 return connector_is_digital == monitor_is_digital; 2126 } 2127 2128 static enum drm_connector_status 2129 intel_sdvo_detect(struct drm_connector *connector, bool force) 2130 { 2131 struct drm_i915_private *i915 = to_i915(connector->dev); 2132 struct intel_sdvo *intel_sdvo = intel_attached_sdvo(to_intel_connector(connector)); 2133 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector); 2134 enum drm_connector_status ret; 2135 u16 response; 2136 2137 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 2138 connector->base.id, connector->name); 2139 2140 if (!intel_display_device_enabled(i915)) 2141 return connector_status_disconnected; 2142 2143 if (!intel_sdvo_set_target_output(intel_sdvo, 2144 intel_sdvo_connector->output_flag)) 2145 return connector_status_unknown; 2146 2147 if (!intel_sdvo_get_value(intel_sdvo, 2148 SDVO_CMD_GET_ATTACHED_DISPLAYS, 2149 &response, 2)) 2150 return connector_status_unknown; 2151 2152 DRM_DEBUG_KMS("SDVO response %d %d [%x]\n", 2153 response & 0xff, response >> 8, 2154 intel_sdvo_connector->output_flag); 2155 2156 if (response == 0) 2157 return connector_status_disconnected; 2158 2159 if ((intel_sdvo_connector->output_flag & response) == 0) 2160 ret = connector_status_disconnected; 2161 else if (IS_TMDS(intel_sdvo_connector)) 2162 ret = intel_sdvo_tmds_sink_detect(connector); 2163 else { 2164 const struct drm_edid *drm_edid; 2165 2166 /* if we have an edid check it matches the connection */ 2167 drm_edid = intel_sdvo_get_edid(connector); 2168 if (!drm_edid) 2169 drm_edid = intel_sdvo_get_analog_edid(connector); 2170 if (drm_edid) { 2171 if (intel_sdvo_connector_matches_edid(intel_sdvo_connector, 2172 drm_edid)) 2173 ret = connector_status_connected; 2174 else 2175 ret = connector_status_disconnected; 2176 2177 drm_edid_free(drm_edid); 2178 } else { 2179 ret = connector_status_connected; 2180 } 2181 } 2182 2183 return ret; 2184 } 2185 2186 static int intel_sdvo_get_ddc_modes(struct drm_connector *connector) 2187 { 2188 int num_modes = 0; 2189 const struct drm_edid *drm_edid; 2190 2191 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 2192 connector->base.id, connector->name); 2193 2194 /* set the bus switch and get the modes */ 2195 drm_edid = intel_sdvo_get_edid(connector); 2196 2197 /* 2198 * Mac mini hack. On this device, the DVI-I connector shares one DDC 2199 * link between analog and digital outputs. So, if the regular SDVO 2200 * DDC fails, check to see if the analog output is disconnected, in 2201 * which case we'll look there for the digital DDC data. 2202 */ 2203 if (!drm_edid) 2204 drm_edid = intel_sdvo_get_analog_edid(connector); 2205 2206 if (!drm_edid) 2207 return 0; 2208 2209 if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector), 2210 drm_edid)) 2211 num_modes += intel_connector_update_modes(connector, drm_edid); 2212 2213 drm_edid_free(drm_edid); 2214 2215 return num_modes; 2216 } 2217 2218 /* 2219 * Set of SDVO TV modes. 2220 * Note! This is in reply order (see loop in get_tv_modes). 2221 * XXX: all 60Hz refresh? 2222 */ 2223 static const struct drm_display_mode sdvo_tv_modes[] = { 2224 { DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 5815, 320, 321, 384, 2225 416, 0, 200, 201, 232, 233, 0, 2226 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2227 { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 6814, 320, 321, 384, 2228 416, 0, 240, 241, 272, 273, 0, 2229 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2230 { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 9910, 400, 401, 464, 2231 496, 0, 300, 301, 332, 333, 0, 2232 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2233 { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 16913, 640, 641, 704, 2234 736, 0, 350, 351, 382, 383, 0, 2235 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2236 { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 19121, 640, 641, 704, 2237 736, 0, 400, 401, 432, 433, 0, 2238 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2239 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 22654, 640, 641, 704, 2240 736, 0, 480, 481, 512, 513, 0, 2241 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2242 { DRM_MODE("704x480", DRM_MODE_TYPE_DRIVER, 24624, 704, 705, 768, 2243 800, 0, 480, 481, 512, 513, 0, 2244 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2245 { DRM_MODE("704x576", DRM_MODE_TYPE_DRIVER, 29232, 704, 705, 768, 2246 800, 0, 576, 577, 608, 609, 0, 2247 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2248 { DRM_MODE("720x350", DRM_MODE_TYPE_DRIVER, 18751, 720, 721, 784, 2249 816, 0, 350, 351, 382, 383, 0, 2250 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2251 { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 21199, 720, 721, 784, 2252 816, 0, 400, 401, 432, 433, 0, 2253 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2254 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 25116, 720, 721, 784, 2255 816, 0, 480, 481, 512, 513, 0, 2256 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2257 { DRM_MODE("720x540", DRM_MODE_TYPE_DRIVER, 28054, 720, 721, 784, 2258 816, 0, 540, 541, 572, 573, 0, 2259 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2260 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 29816, 720, 721, 784, 2261 816, 0, 576, 577, 608, 609, 0, 2262 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2263 { DRM_MODE("768x576", DRM_MODE_TYPE_DRIVER, 31570, 768, 769, 832, 2264 864, 0, 576, 577, 608, 609, 0, 2265 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2266 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 34030, 800, 801, 864, 2267 896, 0, 600, 601, 632, 633, 0, 2268 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2269 { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 36581, 832, 833, 896, 2270 928, 0, 624, 625, 656, 657, 0, 2271 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2272 { DRM_MODE("920x766", DRM_MODE_TYPE_DRIVER, 48707, 920, 921, 984, 2273 1016, 0, 766, 767, 798, 799, 0, 2274 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2275 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 53827, 1024, 1025, 1088, 2276 1120, 0, 768, 769, 800, 801, 0, 2277 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2278 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 87265, 1280, 1281, 1344, 2279 1376, 0, 1024, 1025, 1056, 1057, 0, 2280 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 2281 }; 2282 2283 static int intel_sdvo_get_tv_modes(struct drm_connector *connector) 2284 { 2285 struct intel_sdvo *intel_sdvo = intel_attached_sdvo(to_intel_connector(connector)); 2286 struct intel_sdvo_connector *intel_sdvo_connector = 2287 to_intel_sdvo_connector(connector); 2288 const struct drm_connector_state *conn_state = connector->state; 2289 struct intel_sdvo_sdtv_resolution_request tv_res; 2290 u32 reply = 0, format_map = 0; 2291 int num_modes = 0; 2292 int i; 2293 2294 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 2295 connector->base.id, connector->name); 2296 2297 /* 2298 * Read the list of supported input resolutions for the selected TV 2299 * format. 2300 */ 2301 format_map = 1 << conn_state->tv.mode; 2302 memcpy(&tv_res, &format_map, 2303 min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request))); 2304 2305 if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo_connector->output_flag)) 2306 return 0; 2307 2308 BUILD_BUG_ON(sizeof(tv_res) != 3); 2309 if (!intel_sdvo_write_cmd(intel_sdvo, 2310 SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT, 2311 &tv_res, sizeof(tv_res))) 2312 return 0; 2313 if (!intel_sdvo_read_response(intel_sdvo, &reply, 3)) 2314 return 0; 2315 2316 for (i = 0; i < ARRAY_SIZE(sdvo_tv_modes); i++) { 2317 if (reply & (1 << i)) { 2318 struct drm_display_mode *nmode; 2319 nmode = drm_mode_duplicate(connector->dev, 2320 &sdvo_tv_modes[i]); 2321 if (nmode) { 2322 drm_mode_probed_add(connector, nmode); 2323 num_modes++; 2324 } 2325 } 2326 } 2327 2328 return num_modes; 2329 } 2330 2331 static int intel_sdvo_get_lvds_modes(struct drm_connector *connector) 2332 { 2333 struct drm_i915_private *dev_priv = to_i915(connector->dev); 2334 2335 drm_dbg_kms(&dev_priv->drm, "[CONNECTOR:%d:%s]\n", 2336 connector->base.id, connector->name); 2337 2338 return intel_panel_get_modes(to_intel_connector(connector)); 2339 } 2340 2341 static int intel_sdvo_get_modes(struct drm_connector *connector) 2342 { 2343 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector); 2344 2345 if (IS_TV(intel_sdvo_connector)) 2346 return intel_sdvo_get_tv_modes(connector); 2347 else if (IS_LVDS(intel_sdvo_connector)) 2348 return intel_sdvo_get_lvds_modes(connector); 2349 else 2350 return intel_sdvo_get_ddc_modes(connector); 2351 } 2352 2353 static int 2354 intel_sdvo_connector_atomic_get_property(struct drm_connector *connector, 2355 const struct drm_connector_state *state, 2356 struct drm_property *property, 2357 u64 *val) 2358 { 2359 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector); 2360 const struct intel_sdvo_connector_state *sdvo_state = to_intel_sdvo_connector_state((void *)state); 2361 2362 if (property == intel_sdvo_connector->tv_format) { 2363 int i; 2364 2365 for (i = 0; i < intel_sdvo_connector->format_supported_num; i++) 2366 if (state->tv.mode == intel_sdvo_connector->tv_format_supported[i]) { 2367 *val = i; 2368 2369 return 0; 2370 } 2371 2372 drm_WARN_ON(connector->dev, 1); 2373 *val = 0; 2374 } else if (property == intel_sdvo_connector->top || 2375 property == intel_sdvo_connector->bottom) 2376 *val = intel_sdvo_connector->max_vscan - sdvo_state->tv.overscan_v; 2377 else if (property == intel_sdvo_connector->left || 2378 property == intel_sdvo_connector->right) 2379 *val = intel_sdvo_connector->max_hscan - sdvo_state->tv.overscan_h; 2380 else if (property == intel_sdvo_connector->hpos) 2381 *val = sdvo_state->tv.hpos; 2382 else if (property == intel_sdvo_connector->vpos) 2383 *val = sdvo_state->tv.vpos; 2384 else if (property == intel_sdvo_connector->saturation) 2385 *val = state->tv.saturation; 2386 else if (property == intel_sdvo_connector->contrast) 2387 *val = state->tv.contrast; 2388 else if (property == intel_sdvo_connector->hue) 2389 *val = state->tv.hue; 2390 else if (property == intel_sdvo_connector->brightness) 2391 *val = state->tv.brightness; 2392 else if (property == intel_sdvo_connector->sharpness) 2393 *val = sdvo_state->tv.sharpness; 2394 else if (property == intel_sdvo_connector->flicker_filter) 2395 *val = sdvo_state->tv.flicker_filter; 2396 else if (property == intel_sdvo_connector->flicker_filter_2d) 2397 *val = sdvo_state->tv.flicker_filter_2d; 2398 else if (property == intel_sdvo_connector->flicker_filter_adaptive) 2399 *val = sdvo_state->tv.flicker_filter_adaptive; 2400 else if (property == intel_sdvo_connector->tv_chroma_filter) 2401 *val = sdvo_state->tv.chroma_filter; 2402 else if (property == intel_sdvo_connector->tv_luma_filter) 2403 *val = sdvo_state->tv.luma_filter; 2404 else if (property == intel_sdvo_connector->dot_crawl) 2405 *val = sdvo_state->tv.dot_crawl; 2406 else 2407 return intel_digital_connector_atomic_get_property(connector, state, property, val); 2408 2409 return 0; 2410 } 2411 2412 static int 2413 intel_sdvo_connector_atomic_set_property(struct drm_connector *connector, 2414 struct drm_connector_state *state, 2415 struct drm_property *property, 2416 u64 val) 2417 { 2418 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector); 2419 struct intel_sdvo_connector_state *sdvo_state = to_intel_sdvo_connector_state(state); 2420 2421 if (property == intel_sdvo_connector->tv_format) { 2422 state->tv.mode = intel_sdvo_connector->tv_format_supported[val]; 2423 2424 if (state->crtc) { 2425 struct drm_crtc_state *crtc_state = 2426 drm_atomic_get_new_crtc_state(state->state, state->crtc); 2427 2428 crtc_state->connectors_changed = true; 2429 } 2430 } else if (property == intel_sdvo_connector->top || 2431 property == intel_sdvo_connector->bottom) 2432 /* Cannot set these independent from each other */ 2433 sdvo_state->tv.overscan_v = intel_sdvo_connector->max_vscan - val; 2434 else if (property == intel_sdvo_connector->left || 2435 property == intel_sdvo_connector->right) 2436 /* Cannot set these independent from each other */ 2437 sdvo_state->tv.overscan_h = intel_sdvo_connector->max_hscan - val; 2438 else if (property == intel_sdvo_connector->hpos) 2439 sdvo_state->tv.hpos = val; 2440 else if (property == intel_sdvo_connector->vpos) 2441 sdvo_state->tv.vpos = val; 2442 else if (property == intel_sdvo_connector->saturation) 2443 state->tv.saturation = val; 2444 else if (property == intel_sdvo_connector->contrast) 2445 state->tv.contrast = val; 2446 else if (property == intel_sdvo_connector->hue) 2447 state->tv.hue = val; 2448 else if (property == intel_sdvo_connector->brightness) 2449 state->tv.brightness = val; 2450 else if (property == intel_sdvo_connector->sharpness) 2451 sdvo_state->tv.sharpness = val; 2452 else if (property == intel_sdvo_connector->flicker_filter) 2453 sdvo_state->tv.flicker_filter = val; 2454 else if (property == intel_sdvo_connector->flicker_filter_2d) 2455 sdvo_state->tv.flicker_filter_2d = val; 2456 else if (property == intel_sdvo_connector->flicker_filter_adaptive) 2457 sdvo_state->tv.flicker_filter_adaptive = val; 2458 else if (property == intel_sdvo_connector->tv_chroma_filter) 2459 sdvo_state->tv.chroma_filter = val; 2460 else if (property == intel_sdvo_connector->tv_luma_filter) 2461 sdvo_state->tv.luma_filter = val; 2462 else if (property == intel_sdvo_connector->dot_crawl) 2463 sdvo_state->tv.dot_crawl = val; 2464 else 2465 return intel_digital_connector_atomic_set_property(connector, state, property, val); 2466 2467 return 0; 2468 } 2469 2470 static struct drm_connector_state * 2471 intel_sdvo_connector_duplicate_state(struct drm_connector *connector) 2472 { 2473 struct intel_sdvo_connector_state *state; 2474 2475 state = kmemdup(connector->state, sizeof(*state), GFP_KERNEL); 2476 if (!state) 2477 return NULL; 2478 2479 __drm_atomic_helper_connector_duplicate_state(connector, &state->base.base); 2480 return &state->base.base; 2481 } 2482 2483 static const struct drm_connector_funcs intel_sdvo_connector_funcs = { 2484 .detect = intel_sdvo_detect, 2485 .fill_modes = drm_helper_probe_single_connector_modes, 2486 .atomic_get_property = intel_sdvo_connector_atomic_get_property, 2487 .atomic_set_property = intel_sdvo_connector_atomic_set_property, 2488 .late_register = intel_connector_register, 2489 .early_unregister = intel_connector_unregister, 2490 .destroy = intel_connector_destroy, 2491 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 2492 .atomic_duplicate_state = intel_sdvo_connector_duplicate_state, 2493 }; 2494 2495 static int intel_sdvo_atomic_check(struct drm_connector *conn, 2496 struct drm_atomic_state *state) 2497 { 2498 struct drm_connector_state *new_conn_state = 2499 drm_atomic_get_new_connector_state(state, conn); 2500 struct drm_connector_state *old_conn_state = 2501 drm_atomic_get_old_connector_state(state, conn); 2502 struct intel_sdvo_connector_state *old_state = 2503 to_intel_sdvo_connector_state(old_conn_state); 2504 struct intel_sdvo_connector_state *new_state = 2505 to_intel_sdvo_connector_state(new_conn_state); 2506 2507 if (new_conn_state->crtc && 2508 (memcmp(&old_state->tv, &new_state->tv, sizeof(old_state->tv)) || 2509 memcmp(&old_conn_state->tv, &new_conn_state->tv, sizeof(old_conn_state->tv)))) { 2510 struct drm_crtc_state *crtc_state = 2511 drm_atomic_get_new_crtc_state(state, 2512 new_conn_state->crtc); 2513 2514 crtc_state->connectors_changed = true; 2515 } 2516 2517 return intel_digital_connector_atomic_check(conn, state); 2518 } 2519 2520 static const struct drm_connector_helper_funcs intel_sdvo_connector_helper_funcs = { 2521 .get_modes = intel_sdvo_get_modes, 2522 .mode_valid = intel_sdvo_mode_valid, 2523 .atomic_check = intel_sdvo_atomic_check, 2524 }; 2525 2526 static void intel_sdvo_encoder_destroy(struct drm_encoder *_encoder) 2527 { 2528 struct intel_encoder *encoder = to_intel_encoder(_encoder); 2529 struct intel_sdvo *sdvo = to_sdvo(encoder); 2530 int i; 2531 2532 for (i = 0; i < ARRAY_SIZE(sdvo->ddc); i++) { 2533 if (sdvo->ddc[i].ddc_bus) 2534 i2c_del_adapter(&sdvo->ddc[i].ddc); 2535 } 2536 2537 drm_encoder_cleanup(&encoder->base); 2538 kfree(sdvo); 2539 }; 2540 2541 static const struct drm_encoder_funcs intel_sdvo_enc_funcs = { 2542 .destroy = intel_sdvo_encoder_destroy, 2543 }; 2544 2545 static int 2546 intel_sdvo_guess_ddc_bus(struct intel_sdvo *sdvo, 2547 struct intel_sdvo_connector *connector) 2548 { 2549 u16 mask = 0; 2550 int num_bits; 2551 2552 /* 2553 * Make a mask of outputs less than or equal to our own priority in the 2554 * list. 2555 */ 2556 switch (connector->output_flag) { 2557 case SDVO_OUTPUT_LVDS1: 2558 mask |= SDVO_OUTPUT_LVDS1; 2559 fallthrough; 2560 case SDVO_OUTPUT_LVDS0: 2561 mask |= SDVO_OUTPUT_LVDS0; 2562 fallthrough; 2563 case SDVO_OUTPUT_TMDS1: 2564 mask |= SDVO_OUTPUT_TMDS1; 2565 fallthrough; 2566 case SDVO_OUTPUT_TMDS0: 2567 mask |= SDVO_OUTPUT_TMDS0; 2568 fallthrough; 2569 case SDVO_OUTPUT_RGB1: 2570 mask |= SDVO_OUTPUT_RGB1; 2571 fallthrough; 2572 case SDVO_OUTPUT_RGB0: 2573 mask |= SDVO_OUTPUT_RGB0; 2574 break; 2575 } 2576 2577 /* Count bits to find what number we are in the priority list. */ 2578 mask &= sdvo->caps.output_flags; 2579 num_bits = hweight16(mask); 2580 /* If more than 3 outputs, default to DDC bus 3 for now. */ 2581 if (num_bits > 3) 2582 num_bits = 3; 2583 2584 /* Corresponds to SDVO_CONTROL_BUS_DDCx */ 2585 return num_bits; 2586 } 2587 2588 /* 2589 * Choose the appropriate DDC bus for control bus switch command for this 2590 * SDVO output based on the controlled output. 2591 * 2592 * DDC bus number assignment is in a priority order of RGB outputs, then TMDS 2593 * outputs, then LVDS outputs. 2594 */ 2595 static struct intel_sdvo_ddc * 2596 intel_sdvo_select_ddc_bus(struct intel_sdvo *sdvo, 2597 struct intel_sdvo_connector *connector) 2598 { 2599 struct drm_i915_private *dev_priv = to_i915(sdvo->base.base.dev); 2600 const struct sdvo_device_mapping *mapping; 2601 int ddc_bus; 2602 2603 if (sdvo->base.port == PORT_B) 2604 mapping = &dev_priv->display.vbt.sdvo_mappings[0]; 2605 else 2606 mapping = &dev_priv->display.vbt.sdvo_mappings[1]; 2607 2608 if (mapping->initialized) 2609 ddc_bus = (mapping->ddc_pin & 0xf0) >> 4; 2610 else 2611 ddc_bus = intel_sdvo_guess_ddc_bus(sdvo, connector); 2612 2613 if (ddc_bus < 1 || ddc_bus > 3) 2614 return NULL; 2615 2616 return &sdvo->ddc[ddc_bus - 1]; 2617 } 2618 2619 static void 2620 intel_sdvo_select_i2c_bus(struct intel_sdvo *sdvo) 2621 { 2622 struct drm_i915_private *dev_priv = to_i915(sdvo->base.base.dev); 2623 const struct sdvo_device_mapping *mapping; 2624 u8 pin; 2625 2626 if (sdvo->base.port == PORT_B) 2627 mapping = &dev_priv->display.vbt.sdvo_mappings[0]; 2628 else 2629 mapping = &dev_priv->display.vbt.sdvo_mappings[1]; 2630 2631 if (mapping->initialized && 2632 intel_gmbus_is_valid_pin(dev_priv, mapping->i2c_pin)) 2633 pin = mapping->i2c_pin; 2634 else 2635 pin = GMBUS_PIN_DPB; 2636 2637 drm_dbg_kms(&dev_priv->drm, "[ENCODER:%d:%s] I2C pin %d, slave addr 0x%x\n", 2638 sdvo->base.base.base.id, sdvo->base.base.name, 2639 pin, sdvo->slave_addr); 2640 2641 sdvo->i2c = intel_gmbus_get_adapter(dev_priv, pin); 2642 2643 /* 2644 * With gmbus we should be able to drive sdvo i2c at 2MHz, but somehow 2645 * our code totally fails once we start using gmbus. Hence fall back to 2646 * bit banging for now. 2647 */ 2648 intel_gmbus_force_bit(sdvo->i2c, true); 2649 } 2650 2651 /* undo any changes intel_sdvo_select_i2c_bus() did to sdvo->i2c */ 2652 static void 2653 intel_sdvo_unselect_i2c_bus(struct intel_sdvo *sdvo) 2654 { 2655 intel_gmbus_force_bit(sdvo->i2c, false); 2656 } 2657 2658 static bool 2659 intel_sdvo_is_hdmi_connector(struct intel_sdvo *intel_sdvo) 2660 { 2661 return intel_sdvo_check_supp_encode(intel_sdvo); 2662 } 2663 2664 static u8 2665 intel_sdvo_get_slave_addr(struct intel_sdvo *sdvo) 2666 { 2667 struct drm_i915_private *dev_priv = to_i915(sdvo->base.base.dev); 2668 const struct sdvo_device_mapping *my_mapping, *other_mapping; 2669 2670 if (sdvo->base.port == PORT_B) { 2671 my_mapping = &dev_priv->display.vbt.sdvo_mappings[0]; 2672 other_mapping = &dev_priv->display.vbt.sdvo_mappings[1]; 2673 } else { 2674 my_mapping = &dev_priv->display.vbt.sdvo_mappings[1]; 2675 other_mapping = &dev_priv->display.vbt.sdvo_mappings[0]; 2676 } 2677 2678 /* If the BIOS described our SDVO device, take advantage of it. */ 2679 if (my_mapping->slave_addr) 2680 return my_mapping->slave_addr; 2681 2682 /* 2683 * If the BIOS only described a different SDVO device, use the 2684 * address that it isn't using. 2685 */ 2686 if (other_mapping->slave_addr) { 2687 if (other_mapping->slave_addr == 0x70) 2688 return 0x72; 2689 else 2690 return 0x70; 2691 } 2692 2693 /* 2694 * No SDVO device info is found for another DVO port, 2695 * so use mapping assumption we had before BIOS parsing. 2696 */ 2697 if (sdvo->base.port == PORT_B) 2698 return 0x70; 2699 else 2700 return 0x72; 2701 } 2702 2703 static int 2704 intel_sdvo_init_ddc_proxy(struct intel_sdvo_ddc *ddc, 2705 struct intel_sdvo *sdvo, int bit); 2706 2707 static int 2708 intel_sdvo_connector_init(struct intel_sdvo_connector *connector, 2709 struct intel_sdvo *encoder) 2710 { 2711 struct drm_i915_private *i915 = to_i915(encoder->base.base.dev); 2712 struct intel_sdvo_ddc *ddc = NULL; 2713 int ret; 2714 2715 if (HAS_DDC(connector)) 2716 ddc = intel_sdvo_select_ddc_bus(encoder, connector); 2717 2718 ret = drm_connector_init_with_ddc(encoder->base.base.dev, 2719 &connector->base.base, 2720 &intel_sdvo_connector_funcs, 2721 connector->base.base.connector_type, 2722 ddc ? &ddc->ddc : NULL); 2723 if (ret < 0) 2724 return ret; 2725 2726 drm_connector_helper_add(&connector->base.base, 2727 &intel_sdvo_connector_helper_funcs); 2728 2729 connector->base.base.display_info.subpixel_order = SubPixelHorizontalRGB; 2730 connector->base.base.interlace_allowed = true; 2731 connector->base.get_hw_state = intel_sdvo_connector_get_hw_state; 2732 2733 intel_connector_attach_encoder(&connector->base, &encoder->base); 2734 2735 if (ddc) 2736 drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] using %s\n", 2737 connector->base.base.base.id, connector->base.base.name, 2738 ddc->ddc.name); 2739 2740 return 0; 2741 } 2742 2743 static void 2744 intel_sdvo_add_hdmi_properties(struct intel_sdvo *intel_sdvo, 2745 struct intel_sdvo_connector *connector) 2746 { 2747 intel_attach_force_audio_property(&connector->base.base); 2748 if (intel_sdvo->colorimetry_cap & SDVO_COLORIMETRY_RGB220) 2749 intel_attach_broadcast_rgb_property(&connector->base.base); 2750 intel_attach_aspect_ratio_property(&connector->base.base); 2751 } 2752 2753 static struct intel_sdvo_connector *intel_sdvo_connector_alloc(void) 2754 { 2755 struct intel_sdvo_connector *sdvo_connector; 2756 struct intel_sdvo_connector_state *conn_state; 2757 2758 sdvo_connector = kzalloc(sizeof(*sdvo_connector), GFP_KERNEL); 2759 if (!sdvo_connector) 2760 return NULL; 2761 2762 conn_state = kzalloc(sizeof(*conn_state), GFP_KERNEL); 2763 if (!conn_state) { 2764 kfree(sdvo_connector); 2765 return NULL; 2766 } 2767 2768 __drm_atomic_helper_connector_reset(&sdvo_connector->base.base, 2769 &conn_state->base.base); 2770 2771 intel_panel_init_alloc(&sdvo_connector->base); 2772 2773 return sdvo_connector; 2774 } 2775 2776 static bool 2777 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, u16 type) 2778 { 2779 struct drm_encoder *encoder = &intel_sdvo->base.base; 2780 struct drm_connector *connector; 2781 struct intel_encoder *intel_encoder = to_intel_encoder(encoder); 2782 struct intel_connector *intel_connector; 2783 struct intel_sdvo_connector *intel_sdvo_connector; 2784 2785 DRM_DEBUG_KMS("initialising DVI type 0x%x\n", type); 2786 2787 intel_sdvo_connector = intel_sdvo_connector_alloc(); 2788 if (!intel_sdvo_connector) 2789 return false; 2790 2791 intel_sdvo_connector->output_flag = type; 2792 2793 intel_connector = &intel_sdvo_connector->base; 2794 connector = &intel_connector->base; 2795 if (intel_sdvo_get_hotplug_support(intel_sdvo) & 2796 intel_sdvo_connector->output_flag) { 2797 intel_sdvo->hotplug_active |= intel_sdvo_connector->output_flag; 2798 /* 2799 * Some SDVO devices have one-shot hotplug interrupts. 2800 * Ensure that they get re-enabled when an interrupt happens. 2801 */ 2802 intel_connector->polled = DRM_CONNECTOR_POLL_HPD; 2803 intel_encoder->hotplug = intel_sdvo_hotplug; 2804 intel_sdvo_enable_hotplug(intel_encoder); 2805 } else { 2806 intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT; 2807 } 2808 encoder->encoder_type = DRM_MODE_ENCODER_TMDS; 2809 connector->connector_type = DRM_MODE_CONNECTOR_DVID; 2810 2811 if (intel_sdvo_is_hdmi_connector(intel_sdvo)) { 2812 connector->connector_type = DRM_MODE_CONNECTOR_HDMIA; 2813 intel_sdvo_connector->is_hdmi = true; 2814 } 2815 2816 if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) { 2817 kfree(intel_sdvo_connector); 2818 return false; 2819 } 2820 2821 if (intel_sdvo_connector->is_hdmi) 2822 intel_sdvo_add_hdmi_properties(intel_sdvo, intel_sdvo_connector); 2823 2824 return true; 2825 } 2826 2827 static bool 2828 intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, u16 type) 2829 { 2830 struct drm_encoder *encoder = &intel_sdvo->base.base; 2831 struct drm_connector *connector; 2832 struct intel_connector *intel_connector; 2833 struct intel_sdvo_connector *intel_sdvo_connector; 2834 2835 DRM_DEBUG_KMS("initialising TV type 0x%x\n", type); 2836 2837 intel_sdvo_connector = intel_sdvo_connector_alloc(); 2838 if (!intel_sdvo_connector) 2839 return false; 2840 2841 intel_connector = &intel_sdvo_connector->base; 2842 connector = &intel_connector->base; 2843 encoder->encoder_type = DRM_MODE_ENCODER_TVDAC; 2844 connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO; 2845 2846 intel_sdvo_connector->output_flag = type; 2847 2848 if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) { 2849 kfree(intel_sdvo_connector); 2850 return false; 2851 } 2852 2853 if (!intel_sdvo_tv_create_property(intel_sdvo, intel_sdvo_connector, type)) 2854 goto err; 2855 2856 if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector)) 2857 goto err; 2858 2859 return true; 2860 2861 err: 2862 intel_connector_destroy(connector); 2863 return false; 2864 } 2865 2866 static bool 2867 intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, u16 type) 2868 { 2869 struct drm_encoder *encoder = &intel_sdvo->base.base; 2870 struct drm_connector *connector; 2871 struct intel_connector *intel_connector; 2872 struct intel_sdvo_connector *intel_sdvo_connector; 2873 2874 DRM_DEBUG_KMS("initialising analog type 0x%x\n", type); 2875 2876 intel_sdvo_connector = intel_sdvo_connector_alloc(); 2877 if (!intel_sdvo_connector) 2878 return false; 2879 2880 intel_connector = &intel_sdvo_connector->base; 2881 connector = &intel_connector->base; 2882 intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT; 2883 encoder->encoder_type = DRM_MODE_ENCODER_DAC; 2884 connector->connector_type = DRM_MODE_CONNECTOR_VGA; 2885 2886 intel_sdvo_connector->output_flag = type; 2887 2888 if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) { 2889 kfree(intel_sdvo_connector); 2890 return false; 2891 } 2892 2893 return true; 2894 } 2895 2896 static bool 2897 intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, u16 type) 2898 { 2899 struct drm_encoder *encoder = &intel_sdvo->base.base; 2900 struct drm_i915_private *i915 = to_i915(encoder->dev); 2901 struct drm_connector *connector; 2902 struct intel_connector *intel_connector; 2903 struct intel_sdvo_connector *intel_sdvo_connector; 2904 2905 DRM_DEBUG_KMS("initialising LVDS type 0x%x\n", type); 2906 2907 intel_sdvo_connector = intel_sdvo_connector_alloc(); 2908 if (!intel_sdvo_connector) 2909 return false; 2910 2911 intel_connector = &intel_sdvo_connector->base; 2912 connector = &intel_connector->base; 2913 encoder->encoder_type = DRM_MODE_ENCODER_LVDS; 2914 connector->connector_type = DRM_MODE_CONNECTOR_LVDS; 2915 2916 intel_sdvo_connector->output_flag = type; 2917 2918 if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) { 2919 kfree(intel_sdvo_connector); 2920 return false; 2921 } 2922 2923 if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector)) 2924 goto err; 2925 2926 intel_bios_init_panel_late(i915, &intel_connector->panel, NULL, NULL); 2927 2928 /* 2929 * Fetch modes from VBT. For SDVO prefer the VBT mode since some 2930 * SDVO->LVDS transcoders can't cope with the EDID mode. 2931 */ 2932 intel_panel_add_vbt_sdvo_fixed_mode(intel_connector); 2933 2934 if (!intel_panel_preferred_fixed_mode(intel_connector)) { 2935 mutex_lock(&i915->drm.mode_config.mutex); 2936 2937 intel_ddc_get_modes(connector, connector->ddc); 2938 intel_panel_add_edid_fixed_modes(intel_connector, false); 2939 2940 mutex_unlock(&i915->drm.mode_config.mutex); 2941 } 2942 2943 intel_panel_init(intel_connector, NULL); 2944 2945 if (!intel_panel_preferred_fixed_mode(intel_connector)) 2946 goto err; 2947 2948 return true; 2949 2950 err: 2951 intel_connector_destroy(connector); 2952 return false; 2953 } 2954 2955 static u16 intel_sdvo_filter_output_flags(u16 flags) 2956 { 2957 flags &= SDVO_OUTPUT_MASK; 2958 2959 /* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/ 2960 if (!(flags & SDVO_OUTPUT_TMDS0)) 2961 flags &= ~SDVO_OUTPUT_TMDS1; 2962 2963 if (!(flags & SDVO_OUTPUT_RGB0)) 2964 flags &= ~SDVO_OUTPUT_RGB1; 2965 2966 if (!(flags & SDVO_OUTPUT_LVDS0)) 2967 flags &= ~SDVO_OUTPUT_LVDS1; 2968 2969 return flags; 2970 } 2971 2972 static bool intel_sdvo_output_init(struct intel_sdvo *sdvo, u16 type) 2973 { 2974 if (type & SDVO_TMDS_MASK) 2975 return intel_sdvo_dvi_init(sdvo, type); 2976 else if (type & SDVO_TV_MASK) 2977 return intel_sdvo_tv_init(sdvo, type); 2978 else if (type & SDVO_RGB_MASK) 2979 return intel_sdvo_analog_init(sdvo, type); 2980 else if (type & SDVO_LVDS_MASK) 2981 return intel_sdvo_lvds_init(sdvo, type); 2982 else 2983 return false; 2984 } 2985 2986 static bool 2987 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo) 2988 { 2989 static const u16 probe_order[] = { 2990 SDVO_OUTPUT_TMDS0, 2991 SDVO_OUTPUT_TMDS1, 2992 /* TV has no XXX1 function block */ 2993 SDVO_OUTPUT_SVID0, 2994 SDVO_OUTPUT_CVBS0, 2995 SDVO_OUTPUT_YPRPB0, 2996 SDVO_OUTPUT_RGB0, 2997 SDVO_OUTPUT_RGB1, 2998 SDVO_OUTPUT_LVDS0, 2999 SDVO_OUTPUT_LVDS1, 3000 }; 3001 u16 flags; 3002 int i; 3003 3004 flags = intel_sdvo_filter_output_flags(intel_sdvo->caps.output_flags); 3005 3006 if (flags == 0) { 3007 DRM_DEBUG_KMS("%s: Unknown SDVO output type (0x%04x)\n", 3008 SDVO_NAME(intel_sdvo), intel_sdvo->caps.output_flags); 3009 return false; 3010 } 3011 3012 for (i = 0; i < ARRAY_SIZE(probe_order); i++) { 3013 u16 type = flags & probe_order[i]; 3014 3015 if (!type) 3016 continue; 3017 3018 if (!intel_sdvo_output_init(intel_sdvo, type)) 3019 return false; 3020 } 3021 3022 intel_sdvo->base.pipe_mask = ~0; 3023 3024 return true; 3025 } 3026 3027 static void intel_sdvo_output_cleanup(struct intel_sdvo *intel_sdvo) 3028 { 3029 struct drm_device *dev = intel_sdvo->base.base.dev; 3030 struct drm_connector *connector, *tmp; 3031 3032 list_for_each_entry_safe(connector, tmp, 3033 &dev->mode_config.connector_list, head) { 3034 if (intel_attached_encoder(to_intel_connector(connector)) == &intel_sdvo->base) { 3035 drm_connector_unregister(connector); 3036 intel_connector_destroy(connector); 3037 } 3038 } 3039 } 3040 3041 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo, 3042 struct intel_sdvo_connector *intel_sdvo_connector, 3043 int type) 3044 { 3045 struct drm_device *dev = intel_sdvo->base.base.dev; 3046 struct intel_sdvo_tv_format format; 3047 u32 format_map, i; 3048 3049 if (!intel_sdvo_set_target_output(intel_sdvo, type)) 3050 return false; 3051 3052 BUILD_BUG_ON(sizeof(format) != 6); 3053 if (!intel_sdvo_get_value(intel_sdvo, 3054 SDVO_CMD_GET_SUPPORTED_TV_FORMATS, 3055 &format, sizeof(format))) 3056 return false; 3057 3058 memcpy(&format_map, &format, min(sizeof(format_map), sizeof(format))); 3059 3060 if (format_map == 0) 3061 return false; 3062 3063 intel_sdvo_connector->format_supported_num = 0; 3064 for (i = 0 ; i < TV_FORMAT_NUM; i++) 3065 if (format_map & (1 << i)) 3066 intel_sdvo_connector->tv_format_supported[intel_sdvo_connector->format_supported_num++] = i; 3067 3068 3069 intel_sdvo_connector->tv_format = 3070 drm_property_create(dev, DRM_MODE_PROP_ENUM, 3071 "mode", intel_sdvo_connector->format_supported_num); 3072 if (!intel_sdvo_connector->tv_format) 3073 return false; 3074 3075 for (i = 0; i < intel_sdvo_connector->format_supported_num; i++) 3076 drm_property_add_enum(intel_sdvo_connector->tv_format, i, 3077 tv_format_names[intel_sdvo_connector->tv_format_supported[i]]); 3078 3079 intel_sdvo_connector->base.base.state->tv.mode = intel_sdvo_connector->tv_format_supported[0]; 3080 drm_object_attach_property(&intel_sdvo_connector->base.base.base, 3081 intel_sdvo_connector->tv_format, 0); 3082 return true; 3083 3084 } 3085 3086 #define _ENHANCEMENT(state_assignment, name, NAME) do { \ 3087 if (enhancements.name) { \ 3088 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_MAX_##NAME, &data_value, 4) || \ 3089 !intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_##NAME, &response, 2)) \ 3090 return false; \ 3091 intel_sdvo_connector->name = \ 3092 drm_property_create_range(dev, 0, #name, 0, data_value[0]); \ 3093 if (!intel_sdvo_connector->name) return false; \ 3094 state_assignment = response; \ 3095 drm_object_attach_property(&connector->base, \ 3096 intel_sdvo_connector->name, 0); \ 3097 DRM_DEBUG_KMS(#name ": max %d, default %d, current %d\n", \ 3098 data_value[0], data_value[1], response); \ 3099 } \ 3100 } while (0) 3101 3102 #define ENHANCEMENT(state, name, NAME) _ENHANCEMENT((state)->name, name, NAME) 3103 3104 static bool 3105 intel_sdvo_create_enhance_property_tv(struct intel_sdvo *intel_sdvo, 3106 struct intel_sdvo_connector *intel_sdvo_connector, 3107 struct intel_sdvo_enhancements_reply enhancements) 3108 { 3109 struct drm_device *dev = intel_sdvo->base.base.dev; 3110 struct drm_connector *connector = &intel_sdvo_connector->base.base; 3111 struct drm_connector_state *conn_state = connector->state; 3112 struct intel_sdvo_connector_state *sdvo_state = 3113 to_intel_sdvo_connector_state(conn_state); 3114 u16 response, data_value[2]; 3115 3116 /* when horizontal overscan is supported, Add the left/right property */ 3117 if (enhancements.overscan_h) { 3118 if (!intel_sdvo_get_value(intel_sdvo, 3119 SDVO_CMD_GET_MAX_OVERSCAN_H, 3120 &data_value, 4)) 3121 return false; 3122 3123 if (!intel_sdvo_get_value(intel_sdvo, 3124 SDVO_CMD_GET_OVERSCAN_H, 3125 &response, 2)) 3126 return false; 3127 3128 sdvo_state->tv.overscan_h = response; 3129 3130 intel_sdvo_connector->max_hscan = data_value[0]; 3131 intel_sdvo_connector->left = 3132 drm_property_create_range(dev, 0, "left_margin", 0, data_value[0]); 3133 if (!intel_sdvo_connector->left) 3134 return false; 3135 3136 drm_object_attach_property(&connector->base, 3137 intel_sdvo_connector->left, 0); 3138 3139 intel_sdvo_connector->right = 3140 drm_property_create_range(dev, 0, "right_margin", 0, data_value[0]); 3141 if (!intel_sdvo_connector->right) 3142 return false; 3143 3144 drm_object_attach_property(&connector->base, 3145 intel_sdvo_connector->right, 0); 3146 DRM_DEBUG_KMS("h_overscan: max %d, " 3147 "default %d, current %d\n", 3148 data_value[0], data_value[1], response); 3149 } 3150 3151 if (enhancements.overscan_v) { 3152 if (!intel_sdvo_get_value(intel_sdvo, 3153 SDVO_CMD_GET_MAX_OVERSCAN_V, 3154 &data_value, 4)) 3155 return false; 3156 3157 if (!intel_sdvo_get_value(intel_sdvo, 3158 SDVO_CMD_GET_OVERSCAN_V, 3159 &response, 2)) 3160 return false; 3161 3162 sdvo_state->tv.overscan_v = response; 3163 3164 intel_sdvo_connector->max_vscan = data_value[0]; 3165 intel_sdvo_connector->top = 3166 drm_property_create_range(dev, 0, 3167 "top_margin", 0, data_value[0]); 3168 if (!intel_sdvo_connector->top) 3169 return false; 3170 3171 drm_object_attach_property(&connector->base, 3172 intel_sdvo_connector->top, 0); 3173 3174 intel_sdvo_connector->bottom = 3175 drm_property_create_range(dev, 0, 3176 "bottom_margin", 0, data_value[0]); 3177 if (!intel_sdvo_connector->bottom) 3178 return false; 3179 3180 drm_object_attach_property(&connector->base, 3181 intel_sdvo_connector->bottom, 0); 3182 DRM_DEBUG_KMS("v_overscan: max %d, " 3183 "default %d, current %d\n", 3184 data_value[0], data_value[1], response); 3185 } 3186 3187 ENHANCEMENT(&sdvo_state->tv, hpos, HPOS); 3188 ENHANCEMENT(&sdvo_state->tv, vpos, VPOS); 3189 ENHANCEMENT(&conn_state->tv, saturation, SATURATION); 3190 ENHANCEMENT(&conn_state->tv, contrast, CONTRAST); 3191 ENHANCEMENT(&conn_state->tv, hue, HUE); 3192 ENHANCEMENT(&conn_state->tv, brightness, BRIGHTNESS); 3193 ENHANCEMENT(&sdvo_state->tv, sharpness, SHARPNESS); 3194 ENHANCEMENT(&sdvo_state->tv, flicker_filter, FLICKER_FILTER); 3195 ENHANCEMENT(&sdvo_state->tv, flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE); 3196 ENHANCEMENT(&sdvo_state->tv, flicker_filter_2d, FLICKER_FILTER_2D); 3197 _ENHANCEMENT(sdvo_state->tv.chroma_filter, tv_chroma_filter, TV_CHROMA_FILTER); 3198 _ENHANCEMENT(sdvo_state->tv.luma_filter, tv_luma_filter, TV_LUMA_FILTER); 3199 3200 if (enhancements.dot_crawl) { 3201 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_DOT_CRAWL, &response, 2)) 3202 return false; 3203 3204 sdvo_state->tv.dot_crawl = response & 0x1; 3205 intel_sdvo_connector->dot_crawl = 3206 drm_property_create_range(dev, 0, "dot_crawl", 0, 1); 3207 if (!intel_sdvo_connector->dot_crawl) 3208 return false; 3209 3210 drm_object_attach_property(&connector->base, 3211 intel_sdvo_connector->dot_crawl, 0); 3212 DRM_DEBUG_KMS("dot crawl: current %d\n", response); 3213 } 3214 3215 return true; 3216 } 3217 3218 static bool 3219 intel_sdvo_create_enhance_property_lvds(struct intel_sdvo *intel_sdvo, 3220 struct intel_sdvo_connector *intel_sdvo_connector, 3221 struct intel_sdvo_enhancements_reply enhancements) 3222 { 3223 struct drm_device *dev = intel_sdvo->base.base.dev; 3224 struct drm_connector *connector = &intel_sdvo_connector->base.base; 3225 u16 response, data_value[2]; 3226 3227 ENHANCEMENT(&connector->state->tv, brightness, BRIGHTNESS); 3228 3229 return true; 3230 } 3231 #undef ENHANCEMENT 3232 #undef _ENHANCEMENT 3233 3234 static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo, 3235 struct intel_sdvo_connector *intel_sdvo_connector) 3236 { 3237 union { 3238 struct intel_sdvo_enhancements_reply reply; 3239 u16 response; 3240 } enhancements; 3241 3242 BUILD_BUG_ON(sizeof(enhancements) != 2); 3243 3244 if (!intel_sdvo_get_value(intel_sdvo, 3245 SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS, 3246 &enhancements, sizeof(enhancements)) || 3247 enhancements.response == 0) { 3248 DRM_DEBUG_KMS("No enhancement is supported\n"); 3249 return true; 3250 } 3251 3252 if (IS_TV(intel_sdvo_connector)) 3253 return intel_sdvo_create_enhance_property_tv(intel_sdvo, intel_sdvo_connector, enhancements.reply); 3254 else if (IS_LVDS(intel_sdvo_connector)) 3255 return intel_sdvo_create_enhance_property_lvds(intel_sdvo, intel_sdvo_connector, enhancements.reply); 3256 else 3257 return true; 3258 } 3259 3260 static int intel_sdvo_ddc_proxy_xfer(struct i2c_adapter *adapter, 3261 struct i2c_msg *msgs, 3262 int num) 3263 { 3264 struct intel_sdvo_ddc *ddc = adapter->algo_data; 3265 struct intel_sdvo *sdvo = ddc->sdvo; 3266 3267 if (!__intel_sdvo_set_control_bus_switch(sdvo, 1 << ddc->ddc_bus)) 3268 return -EIO; 3269 3270 return sdvo->i2c->algo->master_xfer(sdvo->i2c, msgs, num); 3271 } 3272 3273 static u32 intel_sdvo_ddc_proxy_func(struct i2c_adapter *adapter) 3274 { 3275 struct intel_sdvo_ddc *ddc = adapter->algo_data; 3276 struct intel_sdvo *sdvo = ddc->sdvo; 3277 3278 return sdvo->i2c->algo->functionality(sdvo->i2c); 3279 } 3280 3281 static const struct i2c_algorithm intel_sdvo_ddc_proxy = { 3282 .master_xfer = intel_sdvo_ddc_proxy_xfer, 3283 .functionality = intel_sdvo_ddc_proxy_func 3284 }; 3285 3286 static void proxy_lock_bus(struct i2c_adapter *adapter, 3287 unsigned int flags) 3288 { 3289 struct intel_sdvo_ddc *ddc = adapter->algo_data; 3290 struct intel_sdvo *sdvo = ddc->sdvo; 3291 3292 sdvo->i2c->lock_ops->lock_bus(sdvo->i2c, flags); 3293 } 3294 3295 static int proxy_trylock_bus(struct i2c_adapter *adapter, 3296 unsigned int flags) 3297 { 3298 struct intel_sdvo_ddc *ddc = adapter->algo_data; 3299 struct intel_sdvo *sdvo = ddc->sdvo; 3300 3301 return sdvo->i2c->lock_ops->trylock_bus(sdvo->i2c, flags); 3302 } 3303 3304 static void proxy_unlock_bus(struct i2c_adapter *adapter, 3305 unsigned int flags) 3306 { 3307 struct intel_sdvo_ddc *ddc = adapter->algo_data; 3308 struct intel_sdvo *sdvo = ddc->sdvo; 3309 3310 sdvo->i2c->lock_ops->unlock_bus(sdvo->i2c, flags); 3311 } 3312 3313 static const struct i2c_lock_operations proxy_lock_ops = { 3314 .lock_bus = proxy_lock_bus, 3315 .trylock_bus = proxy_trylock_bus, 3316 .unlock_bus = proxy_unlock_bus, 3317 }; 3318 3319 static int 3320 intel_sdvo_init_ddc_proxy(struct intel_sdvo_ddc *ddc, 3321 struct intel_sdvo *sdvo, int ddc_bus) 3322 { 3323 struct drm_i915_private *dev_priv = to_i915(sdvo->base.base.dev); 3324 struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); 3325 3326 ddc->sdvo = sdvo; 3327 ddc->ddc_bus = ddc_bus; 3328 3329 ddc->ddc.owner = THIS_MODULE; 3330 snprintf(ddc->ddc.name, I2C_NAME_SIZE, "SDVO %c DDC%d", 3331 port_name(sdvo->base.port), ddc_bus); 3332 ddc->ddc.dev.parent = &pdev->dev; 3333 ddc->ddc.algo_data = ddc; 3334 ddc->ddc.algo = &intel_sdvo_ddc_proxy; 3335 ddc->ddc.lock_ops = &proxy_lock_ops; 3336 3337 return i2c_add_adapter(&ddc->ddc); 3338 } 3339 3340 static bool is_sdvo_port_valid(struct drm_i915_private *dev_priv, enum port port) 3341 { 3342 if (HAS_PCH_SPLIT(dev_priv)) 3343 return port == PORT_B; 3344 else 3345 return port == PORT_B || port == PORT_C; 3346 } 3347 3348 static bool assert_sdvo_port_valid(struct drm_i915_private *dev_priv, 3349 enum port port) 3350 { 3351 return !drm_WARN(&dev_priv->drm, !is_sdvo_port_valid(dev_priv, port), 3352 "Platform does not support SDVO %c\n", port_name(port)); 3353 } 3354 3355 bool intel_sdvo_init(struct drm_i915_private *dev_priv, 3356 i915_reg_t sdvo_reg, enum port port) 3357 { 3358 struct intel_encoder *intel_encoder; 3359 struct intel_sdvo *intel_sdvo; 3360 int i; 3361 3362 if (!assert_port_valid(dev_priv, port)) 3363 return false; 3364 3365 if (!assert_sdvo_port_valid(dev_priv, port)) 3366 return false; 3367 3368 intel_sdvo = kzalloc(sizeof(*intel_sdvo), GFP_KERNEL); 3369 if (!intel_sdvo) 3370 return false; 3371 3372 /* encoder type will be decided later */ 3373 intel_encoder = &intel_sdvo->base; 3374 intel_encoder->type = INTEL_OUTPUT_SDVO; 3375 intel_encoder->power_domain = POWER_DOMAIN_PORT_OTHER; 3376 intel_encoder->port = port; 3377 3378 drm_encoder_init(&dev_priv->drm, &intel_encoder->base, 3379 &intel_sdvo_enc_funcs, 0, 3380 "SDVO %c", port_name(port)); 3381 3382 intel_sdvo->sdvo_reg = sdvo_reg; 3383 intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(intel_sdvo) >> 1; 3384 3385 intel_sdvo_select_i2c_bus(intel_sdvo); 3386 3387 /* Read the regs to test if we can talk to the device */ 3388 for (i = 0; i < 0x40; i++) { 3389 u8 byte; 3390 3391 if (!intel_sdvo_read_byte(intel_sdvo, i, &byte)) { 3392 drm_dbg_kms(&dev_priv->drm, 3393 "No SDVO device found on %s\n", 3394 SDVO_NAME(intel_sdvo)); 3395 goto err; 3396 } 3397 } 3398 3399 intel_encoder->compute_config = intel_sdvo_compute_config; 3400 if (HAS_PCH_SPLIT(dev_priv)) { 3401 intel_encoder->disable = pch_disable_sdvo; 3402 intel_encoder->post_disable = pch_post_disable_sdvo; 3403 } else { 3404 intel_encoder->disable = intel_disable_sdvo; 3405 } 3406 intel_encoder->pre_enable = intel_sdvo_pre_enable; 3407 intel_encoder->enable = intel_enable_sdvo; 3408 intel_encoder->audio_enable = intel_sdvo_enable_audio; 3409 intel_encoder->audio_disable = intel_sdvo_disable_audio; 3410 intel_encoder->get_hw_state = intel_sdvo_get_hw_state; 3411 intel_encoder->get_config = intel_sdvo_get_config; 3412 3413 /* In default case sdvo lvds is false */ 3414 if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps)) 3415 goto err; 3416 3417 intel_sdvo->colorimetry_cap = 3418 intel_sdvo_get_colorimetry_cap(intel_sdvo); 3419 3420 for (i = 0; i < ARRAY_SIZE(intel_sdvo->ddc); i++) { 3421 int ret; 3422 3423 ret = intel_sdvo_init_ddc_proxy(&intel_sdvo->ddc[i], 3424 intel_sdvo, i + 1); 3425 if (ret) 3426 goto err; 3427 } 3428 3429 if (!intel_sdvo_output_setup(intel_sdvo)) { 3430 drm_dbg_kms(&dev_priv->drm, 3431 "SDVO output failed to setup on %s\n", 3432 SDVO_NAME(intel_sdvo)); 3433 /* Output_setup can leave behind connectors! */ 3434 goto err_output; 3435 } 3436 3437 /* 3438 * Only enable the hotplug irq if we need it, to work around noisy 3439 * hotplug lines. 3440 */ 3441 if (intel_sdvo->hotplug_active) { 3442 if (intel_sdvo->base.port == PORT_B) 3443 intel_encoder->hpd_pin = HPD_SDVO_B; 3444 else 3445 intel_encoder->hpd_pin = HPD_SDVO_C; 3446 } 3447 3448 /* 3449 * Cloning SDVO with anything is often impossible, since the SDVO 3450 * encoder can request a special input timing mode. And even if that's 3451 * not the case we have evidence that cloning a plain unscaled mode with 3452 * VGA doesn't really work. Furthermore the cloning flags are way too 3453 * simplistic anyway to express such constraints, so just give up on 3454 * cloning for SDVO encoders. 3455 */ 3456 intel_sdvo->base.cloneable = 0; 3457 3458 /* Set the input timing to the screen. Assume always input 0. */ 3459 if (!intel_sdvo_set_target_input(intel_sdvo)) 3460 goto err_output; 3461 3462 if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo, 3463 &intel_sdvo->pixel_clock_min, 3464 &intel_sdvo->pixel_clock_max)) 3465 goto err_output; 3466 3467 drm_dbg_kms(&dev_priv->drm, "%s device VID/DID: %02X:%02X.%02X, " 3468 "clock range %dMHz - %dMHz, " 3469 "num inputs: %d, " 3470 "output 1: %c, output 2: %c\n", 3471 SDVO_NAME(intel_sdvo), 3472 intel_sdvo->caps.vendor_id, intel_sdvo->caps.device_id, 3473 intel_sdvo->caps.device_rev_id, 3474 intel_sdvo->pixel_clock_min / 1000, 3475 intel_sdvo->pixel_clock_max / 1000, 3476 intel_sdvo->caps.sdvo_num_inputs, 3477 /* check currently supported outputs */ 3478 intel_sdvo->caps.output_flags & 3479 (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0 | 3480 SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_SVID0 | 3481 SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_YPRPB0) ? 'Y' : 'N', 3482 intel_sdvo->caps.output_flags & 3483 (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1 | 3484 SDVO_OUTPUT_LVDS1) ? 'Y' : 'N'); 3485 return true; 3486 3487 err_output: 3488 intel_sdvo_output_cleanup(intel_sdvo); 3489 err: 3490 intel_sdvo_unselect_i2c_bus(intel_sdvo); 3491 intel_sdvo_encoder_destroy(&intel_encoder->base); 3492 3493 return false; 3494 } 3495