display/intel_sdvo.c

   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/drm_atomic_helper.h>
  35 #include <drm/drm_crtc.h>
  36 #include <drm/drm_edid.h>
  37
  38 #include "i915_drv.h"
  39 #include "intel_atomic.h"
  40 #include "intel_connector.h"
  41 #include "intel_display_types.h"
  42 #include "intel_fifo_underrun.h"
  43 #include "intel_gmbus.h"
  44 #include "intel_hdmi.h"
  45 #include "intel_hotplug.h"
  46 #include "intel_panel.h"
  47 #include "intel_sdvo.h"
  48 #include "intel_sdvo_regs.h"
  49
  50 #define SDVO_TMDS_MASK (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)
  51 #define SDVO_RGB_MASK  (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1)
  52 #define SDVO_LVDS_MASK (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1)
  53 #define SDVO_TV_MASK   (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_YPRPB0)
  54
  55 #define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK |\
  56                         SDVO_TV_MASK)
  57
  58 #define IS_TV(c)        (c->output_flag & SDVO_TV_MASK)
  59 #define IS_TMDS(c)      (c->output_flag & SDVO_TMDS_MASK)
  60 #define IS_LVDS(c)      (c->output_flag & SDVO_LVDS_MASK)
  61 #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
  62 #define IS_DIGITAL(c) (c->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK))
  63
  64
  65 static const char * const tv_format_names[] = {
  66         "NTSC_M"   , "NTSC_J"  , "NTSC_443",
  67         "PAL_B"    , "PAL_D"   , "PAL_G"   ,
  68         "PAL_H"    , "PAL_I"   , "PAL_M"   ,
  69         "PAL_N"    , "PAL_NC"  , "PAL_60"  ,
  70         "SECAM_B"  , "SECAM_D" , "SECAM_G" ,
  71         "SECAM_K"  , "SECAM_K1", "SECAM_L" ,
  72         "SECAM_60"
  73 };
  74
  75 #define TV_FORMAT_NUM  ARRAY_SIZE(tv_format_names)
  76
  77 struct intel_sdvo {
  78         struct intel_encoder base;
  79
  80         struct i2c_adapter *i2c;
  81         u8 slave_addr;
  82
  83         struct i2c_adapter ddc;
  84
  85         /* Register for the SDVO device: SDVOB or SDVOC */
  86         i915_reg_t sdvo_reg;
  87
  88         /* Active outputs controlled by this SDVO output */
  89         u16 controlled_output;
  90
  91         /*
  92          * Capabilities of the SDVO device returned by
  93          * intel_sdvo_get_capabilities()
  94          */
  95         struct intel_sdvo_caps caps;
  96
  97         u8 colorimetry_cap;
  98
  99         /* Pixel clock limitations reported by the SDVO device, in kHz */
 100         int pixel_clock_min, pixel_clock_max;
 101
 102         /*
 103         * For multiple function SDVO device,
 104         * this is for current attached outputs.
 105         */
 106         u16 attached_output;
 107
 108         /*
 109          * Hotplug activation bits for this device
 110          */
 111         u16 hotplug_active;
 112
 113         enum port port;
 114
 115         bool has_hdmi_monitor;
 116         bool has_hdmi_audio;
 117
 118         /* DDC bus used by this SDVO encoder */
 119         u8 ddc_bus;
 120
 121         /*
 122          * the sdvo flag gets lost in round trip: dtd->adjusted_mode->dtd
 123          */
 124         u8 dtd_sdvo_flags;
 125 };
 126
 127 struct intel_sdvo_connector {
 128         struct intel_connector base;
 129
 130         /* Mark the type of connector */
 131         u16 output_flag;
 132
 133         /* This contains all current supported TV format */
 134         u8 tv_format_supported[TV_FORMAT_NUM];
 135         int   format_supported_num;
 136         struct drm_property *tv_format;
 137
 138         /* add the property for the SDVO-TV */
 139         struct drm_property *left;
 140         struct drm_property *right;
 141         struct drm_property *top;
 142         struct drm_property *bottom;
 143         struct drm_property *hpos;
 144         struct drm_property *vpos;
 145         struct drm_property *contrast;
 146         struct drm_property *saturation;
 147         struct drm_property *hue;
 148         struct drm_property *sharpness;
 149         struct drm_property *flicker_filter;
 150         struct drm_property *flicker_filter_adaptive;
 151         struct drm_property *flicker_filter_2d;
 152         struct drm_property *tv_chroma_filter;
 153         struct drm_property *tv_luma_filter;
 154         struct drm_property *dot_crawl;
 155
 156         /* add the property for the SDVO-TV/LVDS */
 157         struct drm_property *brightness;
 158
 159         /* this is to get the range of margin.*/
 160         u32 max_hscan, max_vscan;
 161
 162         /**
 163          * This is set if we treat the device as HDMI, instead of DVI.
 164          */
 165         bool is_hdmi;
 166 };
 167
 168 struct intel_sdvo_connector_state {
 169         /* base.base: tv.saturation/contrast/hue/brightness */
 170         struct intel_digital_connector_state base;
 171
 172         struct {
 173                 unsigned overscan_h, overscan_v, hpos, vpos, sharpness;
 174                 unsigned flicker_filter, flicker_filter_2d, flicker_filter_adaptive;
 175                 unsigned chroma_filter, luma_filter, dot_crawl;
 176         } tv;
 177 };
 178
 179 static struct intel_sdvo *to_sdvo(struct intel_encoder *encoder)
 180 {
 181         return container_of(encoder, struct intel_sdvo, base);
 182 }
 183
 184 static struct intel_sdvo *intel_attached_sdvo(struct intel_connector *connector)
 185 {
 186         return to_sdvo(intel_attached_encoder(connector));
 187 }
 188
 189 static struct intel_sdvo_connector *
 190 to_intel_sdvo_connector(struct drm_connector *connector)
 191 {
 192         return container_of(connector, struct intel_sdvo_connector, base.base);
 193 }
 194
 195 #define to_intel_sdvo_connector_state(conn_state) \
 196         container_of((conn_state), struct intel_sdvo_connector_state, base.base)
 197
 198 static bool
 199 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, u16 flags);
 200 static bool
 201 intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
 202                               struct intel_sdvo_connector *intel_sdvo_connector,
 203                               int type);
 204 static bool
 205 intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
 206                                    struct intel_sdvo_connector *intel_sdvo_connector);
 207
 208 /*
 209  * Writes the SDVOB or SDVOC with the given value, but always writes both
 210  * SDVOB and SDVOC to work around apparent hardware issues (according to
 211  * comments in the BIOS).
 212  */
 213 static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val)
 214 {
 215         struct drm_device *dev = intel_sdvo->base.base.dev;
 216         struct drm_i915_private *dev_priv = to_i915(dev);
 217         u32 bval = val, cval = val;
 218         int i;
 219
 220         if (HAS_PCH_SPLIT(dev_priv)) {
 221                 intel_de_write(dev_priv, intel_sdvo->sdvo_reg, val);
 222                 intel_de_posting_read(dev_priv, intel_sdvo->sdvo_reg);
 223                 /*
 224                  * HW workaround, need to write this twice for issue
 225                  * that may result in first write getting masked.
 226                  */
 227                 if (HAS_PCH_IBX(dev_priv)) {
 228                         intel_de_write(dev_priv, intel_sdvo->sdvo_reg, val);
 229                         intel_de_posting_read(dev_priv, intel_sdvo->sdvo_reg);
 230                 }
 231                 return;
 232         }
 233
 234         if (intel_sdvo->port == PORT_B)
 235                 cval = intel_de_read(dev_priv, GEN3_SDVOC);
 236         else
 237                 bval = intel_de_read(dev_priv, GEN3_SDVOB);
 238
 239         /*
 240          * Write the registers twice for luck. Sometimes,
 241          * writing them only once doesn't appear to 'stick'.
 242          * The BIOS does this too. Yay, magic
 243          */
 244         for (i = 0; i < 2; i++) {
 245                 intel_de_write(dev_priv, GEN3_SDVOB, bval);
 246                 intel_de_posting_read(dev_priv, GEN3_SDVOB);
 247
 248                 intel_de_write(dev_priv, GEN3_SDVOC, cval);
 249                 intel_de_posting_read(dev_priv, GEN3_SDVOC);
 250         }
 251 }
 252
 253 static bool intel_sdvo_read_byte(struct intel_sdvo *intel_sdvo, u8 addr, u8 *ch)
 254 {
 255         struct i2c_msg msgs[] = {
 256                 {
 257                         .addr = intel_sdvo->slave_addr,
 258                         .flags = 0,
 259                         .len = 1,
 260                         .buf = &addr,
 261                 },
 262                 {
 263                         .addr = intel_sdvo->slave_addr,
 264                         .flags = I2C_M_RD,
 265                         .len = 1,
 266                         .buf = ch,
 267                 }
 268         };
 269         int ret;
 270
 271         if ((ret = i2c_transfer(intel_sdvo->i2c, msgs, 2)) == 2)
 272                 return true;
 273
 274         DRM_DEBUG_KMS("i2c transfer returned %d\n", ret);
 275         return false;
 276 }
 277
 278 #define SDVO_CMD_NAME_ENTRY(cmd_) { .cmd = SDVO_CMD_ ## cmd_, .name = #cmd_ }
 279
 280 /** Mapping of command numbers to names, for debug output */
 281 static const struct {
 282         u8 cmd;
 283         const char *name;
 284 } __attribute__ ((packed)) sdvo_cmd_names[] = {
 285         SDVO_CMD_NAME_ENTRY(RESET),
 286         SDVO_CMD_NAME_ENTRY(GET_DEVICE_CAPS),
 287         SDVO_CMD_NAME_ENTRY(GET_FIRMWARE_REV),
 288         SDVO_CMD_NAME_ENTRY(GET_TRAINED_INPUTS),
 289         SDVO_CMD_NAME_ENTRY(GET_ACTIVE_OUTPUTS),
 290         SDVO_CMD_NAME_ENTRY(SET_ACTIVE_OUTPUTS),
 291         SDVO_CMD_NAME_ENTRY(GET_IN_OUT_MAP),
 292         SDVO_CMD_NAME_ENTRY(SET_IN_OUT_MAP),
 293         SDVO_CMD_NAME_ENTRY(GET_ATTACHED_DISPLAYS),
 294         SDVO_CMD_NAME_ENTRY(GET_HOT_PLUG_SUPPORT),
 295         SDVO_CMD_NAME_ENTRY(SET_ACTIVE_HOT_PLUG),
 296         SDVO_CMD_NAME_ENTRY(GET_ACTIVE_HOT_PLUG),
 297         SDVO_CMD_NAME_ENTRY(GET_INTERRUPT_EVENT_SOURCE),
 298         SDVO_CMD_NAME_ENTRY(SET_TARGET_INPUT),
 299         SDVO_CMD_NAME_ENTRY(SET_TARGET_OUTPUT),
 300         SDVO_CMD_NAME_ENTRY(GET_INPUT_TIMINGS_PART1),
 301         SDVO_CMD_NAME_ENTRY(GET_INPUT_TIMINGS_PART2),
 302         SDVO_CMD_NAME_ENTRY(SET_INPUT_TIMINGS_PART1),
 303         SDVO_CMD_NAME_ENTRY(SET_INPUT_TIMINGS_PART2),
 304         SDVO_CMD_NAME_ENTRY(SET_OUTPUT_TIMINGS_PART1),
 305         SDVO_CMD_NAME_ENTRY(SET_OUTPUT_TIMINGS_PART2),
 306         SDVO_CMD_NAME_ENTRY(GET_OUTPUT_TIMINGS_PART1),
 307         SDVO_CMD_NAME_ENTRY(GET_OUTPUT_TIMINGS_PART2),
 308         SDVO_CMD_NAME_ENTRY(CREATE_PREFERRED_INPUT_TIMING),
 309         SDVO_CMD_NAME_ENTRY(GET_PREFERRED_INPUT_TIMING_PART1),
 310         SDVO_CMD_NAME_ENTRY(GET_PREFERRED_INPUT_TIMING_PART2),
 311         SDVO_CMD_NAME_ENTRY(GET_INPUT_PIXEL_CLOCK_RANGE),
 312         SDVO_CMD_NAME_ENTRY(GET_OUTPUT_PIXEL_CLOCK_RANGE),
 313         SDVO_CMD_NAME_ENTRY(GET_SUPPORTED_CLOCK_RATE_MULTS),
 314         SDVO_CMD_NAME_ENTRY(GET_CLOCK_RATE_MULT),
 315         SDVO_CMD_NAME_ENTRY(SET_CLOCK_RATE_MULT),
 316         SDVO_CMD_NAME_ENTRY(GET_SUPPORTED_TV_FORMATS),
 317         SDVO_CMD_NAME_ENTRY(GET_TV_FORMAT),
 318         SDVO_CMD_NAME_ENTRY(SET_TV_FORMAT),
 319         SDVO_CMD_NAME_ENTRY(GET_SUPPORTED_POWER_STATES),
 320         SDVO_CMD_NAME_ENTRY(GET_POWER_STATE),
 321         SDVO_CMD_NAME_ENTRY(SET_ENCODER_POWER_STATE),
 322         SDVO_CMD_NAME_ENTRY(SET_DISPLAY_POWER_STATE),
 323         SDVO_CMD_NAME_ENTRY(SET_CONTROL_BUS_SWITCH),
 324         SDVO_CMD_NAME_ENTRY(GET_SDTV_RESOLUTION_SUPPORT),
 325         SDVO_CMD_NAME_ENTRY(GET_SCALED_HDTV_RESOLUTION_SUPPORT),
 326         SDVO_CMD_NAME_ENTRY(GET_SUPPORTED_ENHANCEMENTS),
 327
 328         /* Add the op code for SDVO enhancements */
 329         SDVO_CMD_NAME_ENTRY(GET_MAX_HPOS),
 330         SDVO_CMD_NAME_ENTRY(GET_HPOS),
 331         SDVO_CMD_NAME_ENTRY(SET_HPOS),
 332         SDVO_CMD_NAME_ENTRY(GET_MAX_VPOS),
 333         SDVO_CMD_NAME_ENTRY(GET_VPOS),
 334         SDVO_CMD_NAME_ENTRY(SET_VPOS),
 335         SDVO_CMD_NAME_ENTRY(GET_MAX_SATURATION),
 336         SDVO_CMD_NAME_ENTRY(GET_SATURATION),
 337         SDVO_CMD_NAME_ENTRY(SET_SATURATION),
 338         SDVO_CMD_NAME_ENTRY(GET_MAX_HUE),
 339         SDVO_CMD_NAME_ENTRY(GET_HUE),
 340         SDVO_CMD_NAME_ENTRY(SET_HUE),
 341         SDVO_CMD_NAME_ENTRY(GET_MAX_CONTRAST),
 342         SDVO_CMD_NAME_ENTRY(GET_CONTRAST),
 343         SDVO_CMD_NAME_ENTRY(SET_CONTRAST),
 344         SDVO_CMD_NAME_ENTRY(GET_MAX_BRIGHTNESS),
 345         SDVO_CMD_NAME_ENTRY(GET_BRIGHTNESS),
 346         SDVO_CMD_NAME_ENTRY(SET_BRIGHTNESS),
 347         SDVO_CMD_NAME_ENTRY(GET_MAX_OVERSCAN_H),
 348         SDVO_CMD_NAME_ENTRY(GET_OVERSCAN_H),
 349         SDVO_CMD_NAME_ENTRY(SET_OVERSCAN_H),
 350         SDVO_CMD_NAME_ENTRY(GET_MAX_OVERSCAN_V),
 351         SDVO_CMD_NAME_ENTRY(GET_OVERSCAN_V),
 352         SDVO_CMD_NAME_ENTRY(SET_OVERSCAN_V),
 353         SDVO_CMD_NAME_ENTRY(GET_MAX_FLICKER_FILTER),
 354         SDVO_CMD_NAME_ENTRY(GET_FLICKER_FILTER),
 355         SDVO_CMD_NAME_ENTRY(SET_FLICKER_FILTER),
 356         SDVO_CMD_NAME_ENTRY(GET_MAX_FLICKER_FILTER_ADAPTIVE),
 357         SDVO_CMD_NAME_ENTRY(GET_FLICKER_FILTER_ADAPTIVE),
 358         SDVO_CMD_NAME_ENTRY(SET_FLICKER_FILTER_ADAPTIVE),
 359         SDVO_CMD_NAME_ENTRY(GET_MAX_FLICKER_FILTER_2D),
 360         SDVO_CMD_NAME_ENTRY(GET_FLICKER_FILTER_2D),
 361         SDVO_CMD_NAME_ENTRY(SET_FLICKER_FILTER_2D),
 362         SDVO_CMD_NAME_ENTRY(GET_MAX_SHARPNESS),
 363         SDVO_CMD_NAME_ENTRY(GET_SHARPNESS),
 364         SDVO_CMD_NAME_ENTRY(SET_SHARPNESS),
 365         SDVO_CMD_NAME_ENTRY(GET_DOT_CRAWL),
 366         SDVO_CMD_NAME_ENTRY(SET_DOT_CRAWL),
 367         SDVO_CMD_NAME_ENTRY(GET_MAX_TV_CHROMA_FILTER),
 368         SDVO_CMD_NAME_ENTRY(GET_TV_CHROMA_FILTER),
 369         SDVO_CMD_NAME_ENTRY(SET_TV_CHROMA_FILTER),
 370         SDVO_CMD_NAME_ENTRY(GET_MAX_TV_LUMA_FILTER),
 371         SDVO_CMD_NAME_ENTRY(GET_TV_LUMA_FILTER),
 372         SDVO_CMD_NAME_ENTRY(SET_TV_LUMA_FILTER),
 373
 374         /* HDMI op code */
 375         SDVO_CMD_NAME_ENTRY(GET_SUPP_ENCODE),
 376         SDVO_CMD_NAME_ENTRY(GET_ENCODE),
 377         SDVO_CMD_NAME_ENTRY(SET_ENCODE),
 378         SDVO_CMD_NAME_ENTRY(SET_PIXEL_REPLI),
 379         SDVO_CMD_NAME_ENTRY(GET_PIXEL_REPLI),
 380         SDVO_CMD_NAME_ENTRY(GET_COLORIMETRY_CAP),
 381         SDVO_CMD_NAME_ENTRY(SET_COLORIMETRY),
 382         SDVO_CMD_NAME_ENTRY(GET_COLORIMETRY),
 383         SDVO_CMD_NAME_ENTRY(GET_AUDIO_ENCRYPT_PREFER),
 384         SDVO_CMD_NAME_ENTRY(SET_AUDIO_STAT),
 385         SDVO_CMD_NAME_ENTRY(GET_AUDIO_STAT),
 386         SDVO_CMD_NAME_ENTRY(GET_HBUF_INDEX),
 387         SDVO_CMD_NAME_ENTRY(SET_HBUF_INDEX),
 388         SDVO_CMD_NAME_ENTRY(GET_HBUF_INFO),
 389         SDVO_CMD_NAME_ENTRY(GET_HBUF_AV_SPLIT),
 390         SDVO_CMD_NAME_ENTRY(SET_HBUF_AV_SPLIT),
 391         SDVO_CMD_NAME_ENTRY(GET_HBUF_TXRATE),
 392         SDVO_CMD_NAME_ENTRY(SET_HBUF_TXRATE),
 393         SDVO_CMD_NAME_ENTRY(SET_HBUF_DATA),
 394         SDVO_CMD_NAME_ENTRY(GET_HBUF_DATA),
 395 };
 396
 397 #undef SDVO_CMD_NAME_ENTRY
 398
 399 static const char *sdvo_cmd_name(u8 cmd)
 400 {
 401         int i;
 402
 403         for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) {
 404                 if (cmd == sdvo_cmd_names[i].cmd)
 405                         return sdvo_cmd_names[i].name;
 406         }
 407
 408         return NULL;
 409 }
 410
 411 #define SDVO_NAME(svdo) ((svdo)->port == PORT_B ? "SDVOB" : "SDVOC")
 412
 413 static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd,
 414                                    const void *args, int args_len)
 415 {
 416         struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev);
 417         const char *cmd_name;
 418         int i, pos = 0;
 419         char buffer[64];
 420
 421 #define BUF_PRINT(args...) \
 422         pos += snprintf(buffer + pos, max_t(int, sizeof(buffer) - pos, 0), args)
 423
 424         for (i = 0; i < args_len; i++) {
 425                 BUF_PRINT("%02X ", ((u8 *)args)[i]);
 426         }
 427         for (; i < 8; i++) {
 428                 BUF_PRINT("   ");
 429         }
 430
 431         cmd_name = sdvo_cmd_name(cmd);
 432         if (cmd_name)
 433                 BUF_PRINT("(%s)", cmd_name);
 434         else
 435                 BUF_PRINT("(%02X)", cmd);
 436
 437         drm_WARN_ON(&dev_priv->drm, pos >= sizeof(buffer) - 1);
 438 #undef BUF_PRINT
 439
 440         DRM_DEBUG_KMS("%s: W: %02X %s\n", SDVO_NAME(intel_sdvo), cmd, buffer);
 441 }
 442
 443 static const char * const cmd_status_names[] = {
 444         [SDVO_CMD_STATUS_POWER_ON] = "Power on",
 445         [SDVO_CMD_STATUS_SUCCESS] = "Success",
 446         [SDVO_CMD_STATUS_NOTSUPP] = "Not supported",
 447         [SDVO_CMD_STATUS_INVALID_ARG] = "Invalid arg",
 448         [SDVO_CMD_STATUS_PENDING] = "Pending",
 449         [SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED] = "Target not specified",
 450         [SDVO_CMD_STATUS_SCALING_NOT_SUPP] = "Scaling not supported",
 451 };
 452
 453 static const char *sdvo_cmd_status(u8 status)
 454 {
 455         if (status < ARRAY_SIZE(cmd_status_names))
 456                 return cmd_status_names[status];
 457         else
 458                 return NULL;
 459 }
 460
 461 static bool __intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
 462                                    const void *args, int args_len,
 463                                    bool unlocked)
 464 {
 465         u8 *buf, status;
 466         struct i2c_msg *msgs;
 467         int i, ret = true;
 468
 469         /* Would be simpler to allocate both in one go ? */
 470         buf = kzalloc(args_len * 2 + 2, GFP_KERNEL);
 471         if (!buf)
 472                 return false;
 473
 474         msgs = kcalloc(args_len + 3, sizeof(*msgs), GFP_KERNEL);
 475         if (!msgs) {
 476                 kfree(buf);
 477                 return false;
 478         }
 479
 480         intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
 481
 482         for (i = 0; i < args_len; i++) {
 483                 msgs[i].addr = intel_sdvo->slave_addr;
 484                 msgs[i].flags = 0;
 485                 msgs[i].len = 2;
 486                 msgs[i].buf = buf + 2 *i;
 487                 buf[2*i + 0] = SDVO_I2C_ARG_0 - i;
 488                 buf[2*i + 1] = ((u8*)args)[i];
 489         }
 490         msgs[i].addr = intel_sdvo->slave_addr;
 491         msgs[i].flags = 0;
 492         msgs[i].len = 2;
 493         msgs[i].buf = buf + 2*i;
 494         buf[2*i + 0] = SDVO_I2C_OPCODE;
 495         buf[2*i + 1] = cmd;
 496
 497         /* the following two are to read the response */
 498         status = SDVO_I2C_CMD_STATUS;
 499         msgs[i+1].addr = intel_sdvo->slave_addr;
 500         msgs[i+1].flags = 0;
 501         msgs[i+1].len = 1;
 502         msgs[i+1].buf = &status;
 503
 504         msgs[i+2].addr = intel_sdvo->slave_addr;
 505         msgs[i+2].flags = I2C_M_RD;
 506         msgs[i+2].len = 1;
 507         msgs[i+2].buf = &status;
 508
 509         if (unlocked)
 510                 ret = i2c_transfer(intel_sdvo->i2c, msgs, i+3);
 511         else
 512                 ret = __i2c_transfer(intel_sdvo->i2c, msgs, i+3);
 513         if (ret < 0) {
 514                 DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
 515                 ret = false;
 516                 goto out;
 517         }
 518         if (ret != i+3) {
 519                 /* failure in I2C transfer */
 520                 DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3);
 521                 ret = false;
 522         }
 523
 524 out:
 525         kfree(msgs);
 526         kfree(buf);
 527         return ret;
 528 }
 529
 530 static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
 531                                  const void *args, int args_len)
 532 {
 533         return __intel_sdvo_write_cmd(intel_sdvo, cmd, args, args_len, true);
 534 }
 535
 536 static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
 537                                      void *response, int response_len)
 538 {
 539         struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev);
 540         const char *cmd_status;
 541         u8 retry = 15; /* 5 quick checks, followed by 10 long checks */
 542         u8 status;
 543         int i, pos = 0;
 544         char buffer[64];
 545
 546         buffer[0] = '\0';
 547
 548         /*
 549          * The documentation states that all commands will be
 550          * processed within 15µs, and that we need only poll
 551          * the status byte a maximum of 3 times in order for the
 552          * command to be complete.
 553          *
 554          * Check 5 times in case the hardware failed to read the docs.
 555          *
 556          * Also beware that the first response by many devices is to
 557          * reply PENDING and stall for time. TVs are notorious for
 558          * requiring longer than specified to complete their replies.
 559          * Originally (in the DDX long ago), the delay was only ever 15ms
 560          * with an additional delay of 30ms applied for TVs added later after
 561          * many experiments. To accommodate both sets of delays, we do a
 562          * sequence of slow checks if the device is falling behind and fails
 563          * to reply within 5*15µs.
 564          */
 565         if (!intel_sdvo_read_byte(intel_sdvo,
 566                                   SDVO_I2C_CMD_STATUS,
 567                                   &status))
 568                 goto log_fail;
 569
 570         while ((status == SDVO_CMD_STATUS_PENDING ||
 571                 status == SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED) && --retry) {
 572                 if (retry < 10)
 573                         msleep(15);
 574                 else
 575                         udelay(15);
 576
 577                 if (!intel_sdvo_read_byte(intel_sdvo,
 578                                           SDVO_I2C_CMD_STATUS,
 579                                           &status))
 580                         goto log_fail;
 581         }
 582
 583 #define BUF_PRINT(args...) \
 584         pos += snprintf(buffer + pos, max_t(int, sizeof(buffer) - pos, 0), args)
 585
 586         cmd_status = sdvo_cmd_status(status);
 587         if (cmd_status)
 588                 BUF_PRINT("(%s)", cmd_status);
 589         else
 590                 BUF_PRINT("(??? %d)", status);
 591
 592         if (status != SDVO_CMD_STATUS_SUCCESS)
 593                 goto log_fail;
 594
 595         /* Read the command response */
 596         for (i = 0; i < response_len; i++) {
 597                 if (!intel_sdvo_read_byte(intel_sdvo,
 598                                           SDVO_I2C_RETURN_0 + i,
 599                                           &((u8 *)response)[i]))
 600                         goto log_fail;
 601                 BUF_PRINT(" %02X", ((u8 *)response)[i]);
 602         }
 603
 604         drm_WARN_ON(&dev_priv->drm, pos >= sizeof(buffer) - 1);
 605 #undef BUF_PRINT
 606
 607         DRM_DEBUG_KMS("%s: R: %s\n", SDVO_NAME(intel_sdvo), buffer);
 608         return true;
 609
 610 log_fail:
 611         DRM_DEBUG_KMS("%s: R: ... failed %s\n",
 612                       SDVO_NAME(intel_sdvo), buffer);
 613         return false;
 614 }
 615
 616 static int intel_sdvo_get_pixel_multiplier(const struct drm_display_mode *adjusted_mode)
 617 {
 618         if (adjusted_mode->crtc_clock >= 100000)
 619                 return 1;
 620         else if (adjusted_mode->crtc_clock >= 50000)
 621                 return 2;
 622         else
 623                 return 4;
 624 }
 625
 626 static bool __intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo,
 627                                                 u8 ddc_bus)
 628 {
 629         /* This must be the immediately preceding write before the i2c xfer */
 630         return __intel_sdvo_write_cmd(intel_sdvo,
 631                                       SDVO_CMD_SET_CONTROL_BUS_SWITCH,
 632                                       &ddc_bus, 1, false);
 633 }
 634
 635 static bool intel_sdvo_set_value(struct intel_sdvo *intel_sdvo, u8 cmd, const void *data, int len)
 636 {
 637         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, data, len))
 638                 return false;
 639
 640         return intel_sdvo_read_response(intel_sdvo, NULL, 0);
 641 }
 642
 643 static bool
 644 intel_sdvo_get_value(struct intel_sdvo *intel_sdvo, u8 cmd, void *value, int len)
 645 {
 646         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, NULL, 0))
 647                 return false;
 648
 649         return intel_sdvo_read_response(intel_sdvo, value, len);
 650 }
 651
 652 static bool intel_sdvo_set_target_input(struct intel_sdvo *intel_sdvo)
 653 {
 654         struct intel_sdvo_set_target_input_args targets = {0};
 655         return intel_sdvo_set_value(intel_sdvo,
 656                                     SDVO_CMD_SET_TARGET_INPUT,
 657                                     &targets, sizeof(targets));
 658 }
 659
 660 /*
 661  * Return whether each input is trained.
 662  *
 663  * This function is making an assumption about the layout of the response,
 664  * which should be checked against the docs.
 665  */
 666 static bool intel_sdvo_get_trained_inputs(struct intel_sdvo *intel_sdvo, bool *input_1, bool *input_2)
 667 {
 668         struct intel_sdvo_get_trained_inputs_response response;
 669
 670         BUILD_BUG_ON(sizeof(response) != 1);
 671         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_TRAINED_INPUTS,
 672                                   &response, sizeof(response)))
 673                 return false;
 674
 675         *input_1 = response.input0_trained;
 676         *input_2 = response.input1_trained;
 677         return true;
 678 }
 679
 680 static bool intel_sdvo_set_active_outputs(struct intel_sdvo *intel_sdvo,
 681                                           u16 outputs)
 682 {
 683         return intel_sdvo_set_value(intel_sdvo,
 684                                     SDVO_CMD_SET_ACTIVE_OUTPUTS,
 685                                     &outputs, sizeof(outputs));
 686 }
 687
 688 static bool intel_sdvo_get_active_outputs(struct intel_sdvo *intel_sdvo,
 689                                           u16 *outputs)
 690 {
 691         return intel_sdvo_get_value(intel_sdvo,
 692                                     SDVO_CMD_GET_ACTIVE_OUTPUTS,
 693                                     outputs, sizeof(*outputs));
 694 }
 695
 696 static bool intel_sdvo_set_encoder_power_state(struct intel_sdvo *intel_sdvo,
 697                                                int mode)
 698 {
 699         u8 state = SDVO_ENCODER_STATE_ON;
 700
 701         switch (mode) {
 702         case DRM_MODE_DPMS_ON:
 703                 state = SDVO_ENCODER_STATE_ON;
 704                 break;
 705         case DRM_MODE_DPMS_STANDBY:
 706                 state = SDVO_ENCODER_STATE_STANDBY;
 707                 break;
 708         case DRM_MODE_DPMS_SUSPEND:
 709                 state = SDVO_ENCODER_STATE_SUSPEND;
 710                 break;
 711         case DRM_MODE_DPMS_OFF:
 712                 state = SDVO_ENCODER_STATE_OFF;
 713                 break;
 714         }
 715
 716         return intel_sdvo_set_value(intel_sdvo,
 717                                     SDVO_CMD_SET_ENCODER_POWER_STATE, &state, sizeof(state));
 718 }
 719
 720 static bool intel_sdvo_get_input_pixel_clock_range(struct intel_sdvo *intel_sdvo,
 721                                                    int *clock_min,
 722                                                    int *clock_max)
 723 {
 724         struct intel_sdvo_pixel_clock_range clocks;
 725
 726         BUILD_BUG_ON(sizeof(clocks) != 4);
 727         if (!intel_sdvo_get_value(intel_sdvo,
 728                                   SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
 729                                   &clocks, sizeof(clocks)))
 730                 return false;
 731
 732         /* Convert the values from units of 10 kHz to kHz. */
 733         *clock_min = clocks.min * 10;
 734         *clock_max = clocks.max * 10;
 735         return true;
 736 }
 737
 738 static bool intel_sdvo_set_target_output(struct intel_sdvo *intel_sdvo,
 739                                          u16 outputs)
 740 {
 741         return intel_sdvo_set_value(intel_sdvo,
 742                                     SDVO_CMD_SET_TARGET_OUTPUT,
 743                                     &outputs, sizeof(outputs));
 744 }
 745
 746 static bool intel_sdvo_set_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 747                                   struct intel_sdvo_dtd *dtd)
 748 {
 749         return intel_sdvo_set_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 750                 intel_sdvo_set_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 751 }
 752
 753 static bool intel_sdvo_get_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 754                                   struct intel_sdvo_dtd *dtd)
 755 {
 756         return intel_sdvo_get_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 757                 intel_sdvo_get_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 758 }
 759
 760 static bool intel_sdvo_set_input_timing(struct intel_sdvo *intel_sdvo,
 761                                          struct intel_sdvo_dtd *dtd)
 762 {
 763         return intel_sdvo_set_timing(intel_sdvo,
 764                                      SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd);
 765 }
 766
 767 static bool intel_sdvo_set_output_timing(struct intel_sdvo *intel_sdvo,
 768                                          struct intel_sdvo_dtd *dtd)
 769 {
 770         return intel_sdvo_set_timing(intel_sdvo,
 771                                      SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd);
 772 }
 773
 774 static bool intel_sdvo_get_input_timing(struct intel_sdvo *intel_sdvo,
 775                                         struct intel_sdvo_dtd *dtd)
 776 {
 777         return intel_sdvo_get_timing(intel_sdvo,
 778                                      SDVO_CMD_GET_INPUT_TIMINGS_PART1, dtd);
 779 }
 780
 781 static bool
 782 intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 783                                          struct intel_sdvo_connector *intel_sdvo_connector,
 784                                          u16 clock,
 785                                          u16 width,
 786                                          u16 height)
 787 {
 788         struct intel_sdvo_preferred_input_timing_args args;
 789
 790         memset(&args, 0, sizeof(args));
 791         args.clock = clock;
 792         args.width = width;
 793         args.height = height;
 794         args.interlace = 0;
 795
 796         if (IS_LVDS(intel_sdvo_connector)) {
 797                 const struct drm_display_mode *fixed_mode =
 798                         intel_sdvo_connector->base.panel.fixed_mode;
 799
 800                 if (fixed_mode->hdisplay != width ||
 801                     fixed_mode->vdisplay != height)
 802                         args.scaled = 1;
 803         }
 804
 805         return intel_sdvo_set_value(intel_sdvo,
 806                                     SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
 807                                     &args, sizeof(args));
 808 }
 809
 810 static bool intel_sdvo_get_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 811                                                   struct intel_sdvo_dtd *dtd)
 812 {
 813         BUILD_BUG_ON(sizeof(dtd->part1) != 8);
 814         BUILD_BUG_ON(sizeof(dtd->part2) != 8);
 815         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
 816                                     &dtd->part1, sizeof(dtd->part1)) &&
 817                 intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
 818                                      &dtd->part2, sizeof(dtd->part2));
 819 }
 820
 821 static bool intel_sdvo_set_clock_rate_mult(struct intel_sdvo *intel_sdvo, u8 val)
 822 {
 823         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
 824 }
 825
 826 static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
 827                                          const struct drm_display_mode *mode)
 828 {
 829         u16 width, height;
 830         u16 h_blank_len, h_sync_len, v_blank_len, v_sync_len;
 831         u16 h_sync_offset, v_sync_offset;
 832         int mode_clock;
 833
 834         memset(dtd, 0, sizeof(*dtd));
 835
 836         width = mode->hdisplay;
 837         height = mode->vdisplay;
 838
 839         /* do some mode translations */
 840         h_blank_len = mode->htotal - mode->hdisplay;
 841         h_sync_len = mode->hsync_end - mode->hsync_start;
 842
 843         v_blank_len = mode->vtotal - mode->vdisplay;
 844         v_sync_len = mode->vsync_end - mode->vsync_start;
 845
 846         h_sync_offset = mode->hsync_start - mode->hdisplay;
 847         v_sync_offset = mode->vsync_start - mode->vdisplay;
 848
 849         mode_clock = mode->clock;
 850         mode_clock /= 10;
 851         dtd->part1.clock = mode_clock;
 852
 853         dtd->part1.h_active = width & 0xff;
 854         dtd->part1.h_blank = h_blank_len & 0xff;
 855         dtd->part1.h_high = (((width >> 8) & 0xf) << 4) |
 856                 ((h_blank_len >> 8) & 0xf);
 857         dtd->part1.v_active = height & 0xff;
 858         dtd->part1.v_blank = v_blank_len & 0xff;
 859         dtd->part1.v_high = (((height >> 8) & 0xf) << 4) |
 860                 ((v_blank_len >> 8) & 0xf);
 861
 862         dtd->part2.h_sync_off = h_sync_offset & 0xff;
 863         dtd->part2.h_sync_width = h_sync_len & 0xff;
 864         dtd->part2.v_sync_off_width = (v_sync_offset & 0xf) << 4 |
 865                 (v_sync_len & 0xf);
 866         dtd->part2.sync_off_width_high = ((h_sync_offset & 0x300) >> 2) |
 867                 ((h_sync_len & 0x300) >> 4) | ((v_sync_offset & 0x30) >> 2) |
 868                 ((v_sync_len & 0x30) >> 4);
 869
 870         dtd->part2.dtd_flags = 0x18;
 871         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 872                 dtd->part2.dtd_flags |= DTD_FLAG_INTERLACE;
 873         if (mode->flags & DRM_MODE_FLAG_PHSYNC)
 874                 dtd->part2.dtd_flags |= DTD_FLAG_HSYNC_POSITIVE;
 875         if (mode->flags & DRM_MODE_FLAG_PVSYNC)
 876                 dtd->part2.dtd_flags |= DTD_FLAG_VSYNC_POSITIVE;
 877
 878         dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
 879 }
 880
 881 static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode *pmode,
 882                                          const struct intel_sdvo_dtd *dtd)
 883 {
 884         struct drm_display_mode mode = {};
 885
 886         mode.hdisplay = dtd->part1.h_active;
 887         mode.hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
 888         mode.hsync_start = mode.hdisplay + dtd->part2.h_sync_off;
 889         mode.hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
 890         mode.hsync_end = mode.hsync_start + dtd->part2.h_sync_width;
 891         mode.hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
 892         mode.htotal = mode.hdisplay + dtd->part1.h_blank;
 893         mode.htotal += (dtd->part1.h_high & 0xf) << 8;
 894
 895         mode.vdisplay = dtd->part1.v_active;
 896         mode.vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
 897         mode.vsync_start = mode.vdisplay;
 898         mode.vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
 899         mode.vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
 900         mode.vsync_start += dtd->part2.v_sync_off_high & 0xc0;
 901         mode.vsync_end = mode.vsync_start +
 902                 (dtd->part2.v_sync_off_width & 0xf);
 903         mode.vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
 904         mode.vtotal = mode.vdisplay + dtd->part1.v_blank;
 905         mode.vtotal += (dtd->part1.v_high & 0xf) << 8;
 906
 907         mode.clock = dtd->part1.clock * 10;
 908
 909         if (dtd->part2.dtd_flags & DTD_FLAG_INTERLACE)
 910                 mode.flags |= DRM_MODE_FLAG_INTERLACE;
 911         if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
 912                 mode.flags |= DRM_MODE_FLAG_PHSYNC;
 913         else
 914                 mode.flags |= DRM_MODE_FLAG_NHSYNC;
 915         if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
 916                 mode.flags |= DRM_MODE_FLAG_PVSYNC;
 917         else
 918                 mode.flags |= DRM_MODE_FLAG_NVSYNC;
 919
 920         drm_mode_set_crtcinfo(&mode, 0);
 921
 922         drm_mode_copy(pmode, &mode);
 923 }
 924
 925 static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo)
 926 {
 927         struct intel_sdvo_encode encode;
 928
 929         BUILD_BUG_ON(sizeof(encode) != 2);
 930         return intel_sdvo_get_value(intel_sdvo,
 931                                   SDVO_CMD_GET_SUPP_ENCODE,
 932                                   &encode, sizeof(encode));
 933 }
 934
 935 static bool intel_sdvo_set_encode(struct intel_sdvo *intel_sdvo,
 936                                   u8 mode)
 937 {
 938         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_ENCODE, &mode, 1);
 939 }
 940
 941 static bool intel_sdvo_set_colorimetry(struct intel_sdvo *intel_sdvo,
 942                                        u8 mode)
 943 {
 944         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
 945 }
 946
 947 static bool intel_sdvo_set_pixel_replication(struct intel_sdvo *intel_sdvo,
 948                                              u8 pixel_repeat)
 949 {
 950         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_PIXEL_REPLI,
 951                                     &pixel_repeat, 1);
 952 }
 953
 954 static bool intel_sdvo_set_audio_state(struct intel_sdvo *intel_sdvo,
 955                                        u8 audio_state)
 956 {
 957         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_AUDIO_STAT,
 958                                     &audio_state, 1);
 959 }
 960
 961 static bool intel_sdvo_get_hbuf_size(struct intel_sdvo *intel_sdvo,
 962                                      u8 *hbuf_size)
 963 {
 964         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HBUF_INFO,
 965                                   hbuf_size, 1))
 966                 return false;
 967
 968         /* Buffer size is 0 based, hooray! However zero means zero. */
 969         if (*hbuf_size)
 970                 (*hbuf_size)++;
 971
 972         return true;
 973 }
 974
 975 #if 0
 976 static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
 977 {
 978         int i, j;
 979         u8 set_buf_index[2];
 980         u8 av_split;
 981         u8 buf_size;
 982         u8 buf[48];
 983         u8 *pos;
 984
 985         intel_sdvo_get_value(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, &av_split, 1);
 986
 987         for (i = 0; i <= av_split; i++) {
 988                 set_buf_index[0] = i; set_buf_index[1] = 0;
 989                 intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX,
 990                                      set_buf_index, 2);
 991                 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
 992                 intel_sdvo_read_response(encoder, &buf_size, 1);
 993
 994                 pos = buf;
 995                 for (j = 0; j <= buf_size; j += 8) {
 996                         intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA,
 997                                              NULL, 0);
 998                         intel_sdvo_read_response(encoder, pos, 8);
 999                         pos += 8;
1000                 }
1001         }
1002 }
1003 #endif
1004
1005 static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo,
1006                                        unsigned int if_index, u8 tx_rate,
1007                                        const u8 *data, unsigned int length)
1008 {
1009         u8 set_buf_index[2] = { if_index, 0 };
1010         u8 hbuf_size, tmp[8];
1011         int i;
1012
1013         if (!intel_sdvo_set_value(intel_sdvo,
1014                                   SDVO_CMD_SET_HBUF_INDEX,
1015                                   set_buf_index, 2))
1016                 return false;
1017
1018         if (!intel_sdvo_get_hbuf_size(intel_sdvo, &hbuf_size))
1019                 return false;
1020
1021         DRM_DEBUG_KMS("writing sdvo hbuf: %i, length %u, hbuf_size: %i\n",
1022                       if_index, length, hbuf_size);
1023
1024         if (hbuf_size < length)
1025                 return false;
1026
1027         for (i = 0; i < hbuf_size; i += 8) {
1028                 memset(tmp, 0, 8);
1029                 if (i < length)
1030                         memcpy(tmp, data + i, min_t(unsigned, 8, length - i));
1031
1032                 if (!intel_sdvo_set_value(intel_sdvo,
1033                                           SDVO_CMD_SET_HBUF_DATA,
1034                                           tmp, 8))
1035                         return false;
1036         }
1037
1038         return intel_sdvo_set_value(intel_sdvo,
1039                                     SDVO_CMD_SET_HBUF_TXRATE,
1040                                     &tx_rate, 1);
1041 }
1042
1043 static ssize_t intel_sdvo_read_infoframe(struct intel_sdvo *intel_sdvo,
1044                                          unsigned int if_index,
1045                                          u8 *data, unsigned int length)
1046 {
1047         u8 set_buf_index[2] = { if_index, 0 };
1048         u8 hbuf_size, tx_rate, av_split;
1049         int i;
1050
1051         if (!intel_sdvo_get_value(intel_sdvo,
1052                                   SDVO_CMD_GET_HBUF_AV_SPLIT,
1053                                   &av_split, 1))
1054                 return -ENXIO;
1055
1056         if (av_split < if_index)
1057                 return 0;
1058
1059         if (!intel_sdvo_set_value(intel_sdvo,
1060                                   SDVO_CMD_SET_HBUF_INDEX,
1061                                   set_buf_index, 2))
1062                 return -ENXIO;
1063
1064         if (!intel_sdvo_get_value(intel_sdvo,
1065                                   SDVO_CMD_GET_HBUF_TXRATE,
1066                                   &tx_rate, 1))
1067                 return -ENXIO;
1068
1069         if (tx_rate == SDVO_HBUF_TX_DISABLED)
1070                 return 0;
1071
1072         if (!intel_sdvo_get_hbuf_size(intel_sdvo, &hbuf_size))
1073                 return false;
1074
1075         DRM_DEBUG_KMS("reading sdvo hbuf: %i, length %u, hbuf_size: %i\n",
1076                       if_index, length, hbuf_size);
1077
1078         hbuf_size = min_t(unsigned int, length, hbuf_size);
1079
1080         for (i = 0; i < hbuf_size; i += 8) {
1081                 if (!intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_GET_HBUF_DATA, NULL, 0))
1082                         return -ENXIO;
1083                 if (!intel_sdvo_read_response(intel_sdvo, &data[i],
1084                                               min_t(unsigned int, 8, hbuf_size - i)))
1085                         return -ENXIO;
1086         }
1087
1088         return hbuf_size;
1089 }
1090
1091 static bool intel_sdvo_compute_avi_infoframe(struct intel_sdvo *intel_sdvo,
1092                                              struct intel_crtc_state *crtc_state,
1093                                              struct drm_connector_state *conn_state)
1094 {
1095         struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev);
1096         struct hdmi_avi_infoframe *frame = &crtc_state->infoframes.avi.avi;
1097         const struct drm_display_mode *adjusted_mode =
1098                 &crtc_state->hw.adjusted_mode;
1099         int ret;
1100
1101         if (!crtc_state->has_hdmi_sink)
1102                 return true;
1103
1104         crtc_state->infoframes.enable |=
1105                 intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_AVI);
1106
1107         ret = drm_hdmi_avi_infoframe_from_display_mode(frame,
1108                                                        conn_state->connector,
1109                                                        adjusted_mode);
1110         if (ret)
1111                 return false;
1112
1113         drm_hdmi_avi_infoframe_quant_range(frame,
1114                                            conn_state->connector,
1115                                            adjusted_mode,
1116                                            crtc_state->limited_color_range ?
1117                                            HDMI_QUANTIZATION_RANGE_LIMITED :
1118                                            HDMI_QUANTIZATION_RANGE_FULL);
1119
1120         ret = hdmi_avi_infoframe_check(frame);
1121         if (drm_WARN_ON(&dev_priv->drm, ret))
1122                 return false;
1123
1124         return true;
1125 }
1126
1127 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
1128                                          const struct intel_crtc_state *crtc_state)
1129 {
1130         struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev);
1131         u8 sdvo_data[HDMI_INFOFRAME_SIZE(AVI)];
1132         const union hdmi_infoframe *frame = &crtc_state->infoframes.avi;
1133         ssize_t len;
1134
1135         if ((crtc_state->infoframes.enable &
1136              intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_AVI)) == 0)
1137                 return true;
1138
1139         if (drm_WARN_ON(&dev_priv->drm,
1140                         frame->any.type != HDMI_INFOFRAME_TYPE_AVI))
1141                 return false;
1142
1143         len = hdmi_infoframe_pack_only(frame, sdvo_data, sizeof(sdvo_data));
1144         if (drm_WARN_ON(&dev_priv->drm, len < 0))
1145                 return false;
1146
1147         return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF,
1148                                           SDVO_HBUF_TX_VSYNC,
1149                                           sdvo_data, len);
1150 }
1151
1152 static void intel_sdvo_get_avi_infoframe(struct intel_sdvo *intel_sdvo,
1153                                          struct intel_crtc_state *crtc_state)
1154 {
1155         u8 sdvo_data[HDMI_INFOFRAME_SIZE(AVI)];
1156         union hdmi_infoframe *frame = &crtc_state->infoframes.avi;
1157         ssize_t len;
1158         int ret;
1159
1160         if (!crtc_state->has_hdmi_sink)
1161                 return;
1162
1163         len = intel_sdvo_read_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF,
1164                                         sdvo_data, sizeof(sdvo_data));
1165         if (len < 0) {
1166                 DRM_DEBUG_KMS("failed to read AVI infoframe\n");
1167                 return;
1168         } else if (len == 0) {
1169                 return;
1170         }
1171
1172         crtc_state->infoframes.enable |=
1173                 intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_AVI);
1174
1175         ret = hdmi_infoframe_unpack(frame, sdvo_data, len);
1176         if (ret) {
1177                 DRM_DEBUG_KMS("Failed to unpack AVI infoframe\n");
1178                 return;
1179         }
1180
1181         if (frame->any.type != HDMI_INFOFRAME_TYPE_AVI)
1182                 DRM_DEBUG_KMS("Found the wrong infoframe type 0x%x (expected 0x%02x)\n",
1183                               frame->any.type, HDMI_INFOFRAME_TYPE_AVI);
1184 }
1185
1186 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo,
1187                                      const struct drm_connector_state *conn_state)
1188 {
1189         struct intel_sdvo_tv_format format;
1190         u32 format_map;
1191
1192         format_map = 1 << conn_state->tv.mode;
1193         memset(&format, 0, sizeof(format));
1194         memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map)));
1195
1196         BUILD_BUG_ON(sizeof(format) != 6);
1197         return intel_sdvo_set_value(intel_sdvo,
1198                                     SDVO_CMD_SET_TV_FORMAT,
1199                                     &format, sizeof(format));
1200 }
1201
1202 static bool
1203 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
1204                                         const struct drm_display_mode *mode)
1205 {
1206         struct intel_sdvo_dtd output_dtd;
1207
1208         if (!intel_sdvo_set_target_output(intel_sdvo,
1209                                           intel_sdvo->attached_output))
1210                 return false;
1211
1212         intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1213         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1214                 return false;
1215
1216         return true;
1217 }
1218
1219 /*
1220  * Asks the sdvo controller for the preferred input mode given the output mode.
1221  * Unfortunately we have to set up the full output mode to do that.
1222  */
1223 static bool
1224 intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
1225                                     struct intel_sdvo_connector *intel_sdvo_connector,
1226                                     const struct drm_display_mode *mode,
1227                                     struct drm_display_mode *adjusted_mode)
1228 {
1229         struct intel_sdvo_dtd input_dtd;
1230
1231         /* Reset the input timing to the screen. Assume always input 0. */
1232         if (!intel_sdvo_set_target_input(intel_sdvo))
1233                 return false;
1234
1235         if (!intel_sdvo_create_preferred_input_timing(intel_sdvo,
1236                                                       intel_sdvo_connector,
1237                                                       mode->clock / 10,
1238                                                       mode->hdisplay,
1239                                                       mode->vdisplay))
1240                 return false;
1241
1242         if (!intel_sdvo_get_preferred_input_timing(intel_sdvo,
1243                                                    &input_dtd))
1244                 return false;
1245
1246         intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd);
1247         intel_sdvo->dtd_sdvo_flags = input_dtd.part2.sdvo_flags;
1248
1249         return true;
1250 }
1251
1252 static void i9xx_adjust_sdvo_tv_clock(struct intel_crtc_state *pipe_config)
1253 {
1254         struct drm_i915_private *dev_priv = to_i915(pipe_config->uapi.crtc->dev);
1255         unsigned dotclock = pipe_config->port_clock;
1256         struct dpll *clock = &pipe_config->dpll;
1257
1258         /*
1259          * SDVO TV has fixed PLL values depend on its clock range,
1260          * this mirrors vbios setting.
1261          */
1262         if (dotclock >= 100000 && dotclock < 140500) {
1263                 clock->p1 = 2;
1264                 clock->p2 = 10;
1265                 clock->n = 3;
1266                 clock->m1 = 16;
1267                 clock->m2 = 8;
1268         } else if (dotclock >= 140500 && dotclock <= 200000) {
1269                 clock->p1 = 1;
1270                 clock->p2 = 10;
1271                 clock->n = 6;
1272                 clock->m1 = 12;
1273                 clock->m2 = 8;
1274         } else {
1275                 drm_WARN(&dev_priv->drm, 1,
1276                          "SDVO TV clock out of range: %i\n", dotclock);
1277         }
1278
1279         pipe_config->clock_set = true;
1280 }
1281
1282 static bool intel_has_hdmi_sink(struct intel_sdvo *sdvo,
1283                                 const struct drm_connector_state *conn_state)
1284 {
1285         return sdvo->has_hdmi_monitor &&
1286                 READ_ONCE(to_intel_digital_connector_state(conn_state)->force_audio) != HDMI_AUDIO_OFF_DVI;
1287 }
1288
1289 static bool intel_sdvo_limited_color_range(struct intel_encoder *encoder,
1290                                            const struct intel_crtc_state *crtc_state,
1291                                            const struct drm_connector_state *conn_state)
1292 {
1293         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1294
1295         if ((intel_sdvo->colorimetry_cap & SDVO_COLORIMETRY_RGB220) == 0)
1296                 return false;
1297
1298         return intel_hdmi_limited_color_range(crtc_state, conn_state);
1299 }
1300
1301 static int intel_sdvo_compute_config(struct intel_encoder *encoder,
1302                                      struct intel_crtc_state *pipe_config,
1303                                      struct drm_connector_state *conn_state)
1304 {
1305         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1306         struct intel_sdvo_connector_state *intel_sdvo_state =
1307                 to_intel_sdvo_connector_state(conn_state);
1308         struct intel_sdvo_connector *intel_sdvo_connector =
1309                 to_intel_sdvo_connector(conn_state->connector);
1310         struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode;
1311         struct drm_display_mode *mode = &pipe_config->hw.mode;
1312
1313         DRM_DEBUG_KMS("forcing bpc to 8 for SDVO\n");
1314         pipe_config->pipe_bpp = 8*3;
1315         pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
1316
1317         if (HAS_PCH_SPLIT(to_i915(encoder->base.dev)))
1318                 pipe_config->has_pch_encoder = true;
1319
1320         /*
1321          * We need to construct preferred input timings based on our
1322          * output timings.  To do that, we have to set the output
1323          * timings, even though this isn't really the right place in
1324          * the sequence to do it. Oh well.
1325          */
1326         if (IS_TV(intel_sdvo_connector)) {
1327                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
1328                         return -EINVAL;
1329
1330                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1331                                                            intel_sdvo_connector,
1332                                                            mode,
1333                                                            adjusted_mode);
1334                 pipe_config->sdvo_tv_clock = true;
1335         } else if (IS_LVDS(intel_sdvo_connector)) {
1336                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
1337                                                              intel_sdvo_connector->base.panel.fixed_mode))
1338                         return -EINVAL;
1339
1340                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1341                                                            intel_sdvo_connector,
1342                                                            mode,
1343                                                            adjusted_mode);
1344         }
1345
1346         if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)
1347                 return -EINVAL;
1348
1349         /*
1350          * Make the CRTC code factor in the SDVO pixel multiplier.  The
1351          * SDVO device will factor out the multiplier during mode_set.
1352          */
1353         pipe_config->pixel_multiplier =
1354                 intel_sdvo_get_pixel_multiplier(adjusted_mode);
1355
1356         pipe_config->has_hdmi_sink = intel_has_hdmi_sink(intel_sdvo, conn_state);
1357
1358         if (pipe_config->has_hdmi_sink) {
1359                 if (intel_sdvo_state->base.force_audio == HDMI_AUDIO_AUTO)
1360                         pipe_config->has_audio = intel_sdvo->has_hdmi_audio;
1361                 else
1362                         pipe_config->has_audio =
1363                                 intel_sdvo_state->base.force_audio == HDMI_AUDIO_ON;
1364         }
1365
1366         pipe_config->limited_color_range =
1367                 intel_sdvo_limited_color_range(encoder, pipe_config,
1368                                                conn_state);
1369
1370         /* Clock computation needs to happen after pixel multiplier. */
1371         if (IS_TV(intel_sdvo_connector))
1372                 i9xx_adjust_sdvo_tv_clock(pipe_config);
1373
1374         if (conn_state->picture_aspect_ratio)
1375                 adjusted_mode->picture_aspect_ratio =
1376                         conn_state->picture_aspect_ratio;
1377
1378         if (!intel_sdvo_compute_avi_infoframe(intel_sdvo,
1379                                               pipe_config, conn_state)) {
1380                 DRM_DEBUG_KMS("bad AVI infoframe\n");
1381                 return -EINVAL;
1382         }
1383
1384         return 0;
1385 }
1386
1387 #define UPDATE_PROPERTY(input, NAME) \
1388         do { \
1389                 val = input; \
1390                 intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_##NAME, &val, sizeof(val)); \
1391         } while (0)
1392
1393 static void intel_sdvo_update_props(struct intel_sdvo *intel_sdvo,
1394                                     const struct intel_sdvo_connector_state *sdvo_state)
1395 {
1396         const struct drm_connector_state *conn_state = &sdvo_state->base.base;
1397         struct intel_sdvo_connector *intel_sdvo_conn =
1398                 to_intel_sdvo_connector(conn_state->connector);
1399         u16 val;
1400
1401         if (intel_sdvo_conn->left)
1402                 UPDATE_PROPERTY(sdvo_state->tv.overscan_h, OVERSCAN_H);
1403
1404         if (intel_sdvo_conn->top)
1405                 UPDATE_PROPERTY(sdvo_state->tv.overscan_v, OVERSCAN_V);
1406
1407         if (intel_sdvo_conn->hpos)
1408                 UPDATE_PROPERTY(sdvo_state->tv.hpos, HPOS);
1409
1410         if (intel_sdvo_conn->vpos)
1411                 UPDATE_PROPERTY(sdvo_state->tv.vpos, VPOS);
1412
1413         if (intel_sdvo_conn->saturation)
1414                 UPDATE_PROPERTY(conn_state->tv.saturation, SATURATION);
1415
1416         if (intel_sdvo_conn->contrast)
1417                 UPDATE_PROPERTY(conn_state->tv.contrast, CONTRAST);
1418
1419         if (intel_sdvo_conn->hue)
1420                 UPDATE_PROPERTY(conn_state->tv.hue, HUE);
1421
1422         if (intel_sdvo_conn->brightness)
1423                 UPDATE_PROPERTY(conn_state->tv.brightness, BRIGHTNESS);
1424
1425         if (intel_sdvo_conn->sharpness)
1426                 UPDATE_PROPERTY(sdvo_state->tv.sharpness, SHARPNESS);
1427
1428         if (intel_sdvo_conn->flicker_filter)
1429                 UPDATE_PROPERTY(sdvo_state->tv.flicker_filter, FLICKER_FILTER);
1430
1431         if (intel_sdvo_conn->flicker_filter_2d)
1432                 UPDATE_PROPERTY(sdvo_state->tv.flicker_filter_2d, FLICKER_FILTER_2D);
1433
1434         if (intel_sdvo_conn->flicker_filter_adaptive)
1435                 UPDATE_PROPERTY(sdvo_state->tv.flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
1436
1437         if (intel_sdvo_conn->tv_chroma_filter)
1438                 UPDATE_PROPERTY(sdvo_state->tv.chroma_filter, TV_CHROMA_FILTER);
1439
1440         if (intel_sdvo_conn->tv_luma_filter)
1441                 UPDATE_PROPERTY(sdvo_state->tv.luma_filter, TV_LUMA_FILTER);
1442
1443         if (intel_sdvo_conn->dot_crawl)
1444                 UPDATE_PROPERTY(sdvo_state->tv.dot_crawl, DOT_CRAWL);
1445
1446 #undef UPDATE_PROPERTY
1447 }
1448
1449 static void intel_sdvo_pre_enable(struct intel_atomic_state *state,
1450                                   struct intel_encoder *intel_encoder,
1451                                   const struct intel_crtc_state *crtc_state,
1452                                   const struct drm_connector_state *conn_state)
1453 {
1454         struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev);
1455         struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
1456         const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
1457         const struct intel_sdvo_connector_state *sdvo_state =
1458                 to_intel_sdvo_connector_state(conn_state);
1459         const struct intel_sdvo_connector *intel_sdvo_connector =
1460                 to_intel_sdvo_connector(conn_state->connector);
1461         const struct drm_display_mode *mode = &crtc_state->hw.mode;
1462         struct intel_sdvo *intel_sdvo = to_sdvo(intel_encoder);
1463         u32 sdvox;
1464         struct intel_sdvo_in_out_map in_out;
1465         struct intel_sdvo_dtd input_dtd, output_dtd;
1466         int rate;
1467
1468         intel_sdvo_update_props(intel_sdvo, sdvo_state);
1469
1470         /*
1471          * First, set the input mapping for the first input to our controlled
1472          * output. This is only correct if we're a single-input device, in
1473          * which case the first input is the output from the appropriate SDVO
1474          * channel on the motherboard.  In a two-input device, the first input
1475          * will be SDVOB and the second SDVOC.
1476          */
1477         in_out.in0 = intel_sdvo->attached_output;
1478         in_out.in1 = 0;
1479
1480         intel_sdvo_set_value(intel_sdvo,
1481                              SDVO_CMD_SET_IN_OUT_MAP,
1482                              &in_out, sizeof(in_out));
1483
1484         /* Set the output timings to the screen */
1485         if (!intel_sdvo_set_target_output(intel_sdvo,
1486                                           intel_sdvo->attached_output))
1487                 return;
1488
1489         /* lvds has a special fixed output timing. */
1490         if (IS_LVDS(intel_sdvo_connector))
1491                 intel_sdvo_get_dtd_from_mode(&output_dtd,
1492                                              intel_sdvo_connector->base.panel.fixed_mode);
1493         else
1494                 intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1495         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1496                 drm_info(&dev_priv->drm,
1497                          "Setting output timings on %s failed\n",
1498                          SDVO_NAME(intel_sdvo));
1499
1500         /* Set the input timing to the screen. Assume always input 0. */
1501         if (!intel_sdvo_set_target_input(intel_sdvo))
1502                 return;
1503
1504         if (crtc_state->has_hdmi_sink) {
1505                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI);
1506                 intel_sdvo_set_colorimetry(intel_sdvo,
1507                                            crtc_state->limited_color_range ?
1508                                            SDVO_COLORIMETRY_RGB220 :
1509                                            SDVO_COLORIMETRY_RGB256);
1510                 intel_sdvo_set_avi_infoframe(intel_sdvo, crtc_state);
1511                 intel_sdvo_set_pixel_replication(intel_sdvo,
1512                                                  !!(adjusted_mode->flags &
1513                                                     DRM_MODE_FLAG_DBLCLK));
1514         } else
1515                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);
1516
1517         if (IS_TV(intel_sdvo_connector) &&
1518             !intel_sdvo_set_tv_format(intel_sdvo, conn_state))
1519                 return;
1520
1521         intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
1522
1523         if (IS_TV(intel_sdvo_connector) || IS_LVDS(intel_sdvo_connector))
1524                 input_dtd.part2.sdvo_flags = intel_sdvo->dtd_sdvo_flags;
1525         if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd))
1526                 drm_info(&dev_priv->drm,
1527                          "Setting input timings on %s failed\n",
1528                          SDVO_NAME(intel_sdvo));
1529
1530         switch (crtc_state->pixel_multiplier) {
1531         default:
1532                 drm_WARN(&dev_priv->drm, 1,
1533                          "unknown pixel multiplier specified\n");
1534                 fallthrough;
1535         case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break;
1536         case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break;
1537         case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break;
1538         }
1539         if (!intel_sdvo_set_clock_rate_mult(intel_sdvo, rate))
1540                 return;
1541
1542         /* Set the SDVO control regs. */
1543         if (INTEL_GEN(dev_priv) >= 4) {
1544                 /* The real mode polarity is set by the SDVO commands, using
1545                  * struct intel_sdvo_dtd. */
1546                 sdvox = SDVO_VSYNC_ACTIVE_HIGH | SDVO_HSYNC_ACTIVE_HIGH;
1547                 if (INTEL_GEN(dev_priv) < 5)
1548                         sdvox |= SDVO_BORDER_ENABLE;
1549         } else {
1550                 sdvox = intel_de_read(dev_priv, intel_sdvo->sdvo_reg);
1551                 if (intel_sdvo->port == PORT_B)
1552                         sdvox &= SDVOB_PRESERVE_MASK;
1553                 else
1554                         sdvox &= SDVOC_PRESERVE_MASK;
1555                 sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
1556         }
1557
1558         if (HAS_PCH_CPT(dev_priv))
1559                 sdvox |= SDVO_PIPE_SEL_CPT(crtc->pipe);
1560         else
1561                 sdvox |= SDVO_PIPE_SEL(crtc->pipe);
1562
1563         if (INTEL_GEN(dev_priv) >= 4) {
1564                 /* done in crtc_mode_set as the dpll_md reg must be written early */
1565         } else if (IS_I945G(dev_priv) || IS_I945GM(dev_priv) ||
1566                    IS_G33(dev_priv) || IS_PINEVIEW(dev_priv)) {
1567                 /* done in crtc_mode_set as it lives inside the dpll register */
1568         } else {
1569                 sdvox |= (crtc_state->pixel_multiplier - 1)
1570                         << SDVO_PORT_MULTIPLY_SHIFT;
1571         }
1572
1573         if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL &&
1574             INTEL_GEN(dev_priv) < 5)
1575                 sdvox |= SDVO_STALL_SELECT;
1576         intel_sdvo_write_sdvox(intel_sdvo, sdvox);
1577 }
1578
1579 static bool intel_sdvo_connector_get_hw_state(struct intel_connector *connector)
1580 {
1581         struct intel_sdvo_connector *intel_sdvo_connector =
1582                 to_intel_sdvo_connector(&connector->base);
1583         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1584         u16 active_outputs = 0;
1585
1586         intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
1587
1588         return active_outputs & intel_sdvo_connector->output_flag;
1589 }
1590
1591 bool intel_sdvo_port_enabled(struct drm_i915_private *dev_priv,
1592                              i915_reg_t sdvo_reg, enum pipe *pipe)
1593 {
1594         u32 val;
1595
1596         val = intel_de_read(dev_priv, sdvo_reg);
1597
1598         /* asserts want to know the pipe even if the port is disabled */
1599         if (HAS_PCH_CPT(dev_priv))
1600                 *pipe = (val & SDVO_PIPE_SEL_MASK_CPT) >> SDVO_PIPE_SEL_SHIFT_CPT;
1601         else if (IS_CHERRYVIEW(dev_priv))
1602                 *pipe = (val & SDVO_PIPE_SEL_MASK_CHV) >> SDVO_PIPE_SEL_SHIFT_CHV;
1603         else
1604                 *pipe = (val & SDVO_PIPE_SEL_MASK) >> SDVO_PIPE_SEL_SHIFT;
1605
1606         return val & SDVO_ENABLE;
1607 }
1608
1609 static bool intel_sdvo_get_hw_state(struct intel_encoder *encoder,
1610                                     enum pipe *pipe)
1611 {
1612         struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1613         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1614         u16 active_outputs = 0;
1615         bool ret;
1616
1617         intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
1618
1619         ret = intel_sdvo_port_enabled(dev_priv, intel_sdvo->sdvo_reg, pipe);
1620
1621         return ret || active_outputs;
1622 }
1623
1624 static void intel_sdvo_get_config(struct intel_encoder *encoder,
1625                                   struct intel_crtc_state *pipe_config)
1626 {
1627         struct drm_device *dev = encoder->base.dev;
1628         struct drm_i915_private *dev_priv = to_i915(dev);
1629         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1630         struct intel_sdvo_dtd dtd;
1631         int encoder_pixel_multiplier = 0;
1632         int dotclock;
1633         u32 flags = 0, sdvox;
1634         u8 val;
1635         bool ret;
1636
1637         pipe_config->output_types |= BIT(INTEL_OUTPUT_SDVO);
1638
1639         sdvox = intel_de_read(dev_priv, intel_sdvo->sdvo_reg);
1640
1641         ret = intel_sdvo_get_input_timing(intel_sdvo, &dtd);
1642         if (!ret) {
1643                 /*
1644                  * Some sdvo encoders are not spec compliant and don't
1645                  * implement the mandatory get_timings function.
1646                  */
1647                 drm_dbg(&dev_priv->drm, "failed to retrieve SDVO DTD\n");
1648                 pipe_config->quirks |= PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS;
1649         } else {
1650                 if (dtd.part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
1651                         flags |= DRM_MODE_FLAG_PHSYNC;
1652                 else
1653                         flags |= DRM_MODE_FLAG_NHSYNC;
1654
1655                 if (dtd.part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
1656                         flags |= DRM_MODE_FLAG_PVSYNC;
1657                 else
1658                         flags |= DRM_MODE_FLAG_NVSYNC;
1659         }
1660
1661         pipe_config->hw.adjusted_mode.flags |= flags;
1662
1663         /*
1664          * pixel multiplier readout is tricky: Only on i915g/gm it is stored in
1665          * the sdvo port register, on all other platforms it is part of the dpll
1666          * state. Since the general pipe state readout happens before the
1667          * encoder->get_config we so already have a valid pixel multplier on all
1668          * other platfroms.
1669          */
1670         if (IS_I915G(dev_priv) || IS_I915GM(dev_priv)) {
1671                 pipe_config->pixel_multiplier =
1672                         ((sdvox & SDVO_PORT_MULTIPLY_MASK)
1673                          >> SDVO_PORT_MULTIPLY_SHIFT) + 1;
1674         }
1675
1676         dotclock = pipe_config->port_clock;
1677
1678         if (pipe_config->pixel_multiplier)
1679                 dotclock /= pipe_config->pixel_multiplier;
1680
1681         pipe_config->hw.adjusted_mode.crtc_clock = dotclock;
1682
1683         /* Cross check the port pixel multiplier with the sdvo encoder state. */
1684         if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_CLOCK_RATE_MULT,
1685                                  &val, 1)) {
1686                 switch (val) {
1687                 case SDVO_CLOCK_RATE_MULT_1X:
1688                         encoder_pixel_multiplier = 1;
1689                         break;
1690                 case SDVO_CLOCK_RATE_MULT_2X:
1691                         encoder_pixel_multiplier = 2;
1692                         break;
1693                 case SDVO_CLOCK_RATE_MULT_4X:
1694                         encoder_pixel_multiplier = 4;
1695                         break;
1696                 }
1697         }
1698
1699         drm_WARN(dev,
1700                  encoder_pixel_multiplier != pipe_config->pixel_multiplier,
1701                  "SDVO pixel multiplier mismatch, port: %i, encoder: %i\n",
1702                  pipe_config->pixel_multiplier, encoder_pixel_multiplier);
1703
1704         if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_COLORIMETRY,
1705                                  &val, 1)) {
1706                 if (val == SDVO_COLORIMETRY_RGB220)
1707                         pipe_config->limited_color_range = true;
1708         }
1709
1710         if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_AUDIO_STAT,
1711                                  &val, 1)) {
1712                 u8 mask = SDVO_AUDIO_ELD_VALID | SDVO_AUDIO_PRESENCE_DETECT;
1713
1714                 if ((val & mask) == mask)
1715                         pipe_config->has_audio = true;
1716         }
1717
1718         if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ENCODE,
1719                                  &val, 1)) {
1720                 if (val == SDVO_ENCODE_HDMI)
1721                         pipe_config->has_hdmi_sink = true;
1722         }
1723
1724         intel_sdvo_get_avi_infoframe(intel_sdvo, pipe_config);
1725 }
1726
1727 static void intel_sdvo_disable_audio(struct intel_sdvo *intel_sdvo)
1728 {
1729         intel_sdvo_set_audio_state(intel_sdvo, 0);
1730 }
1731
1732 static void intel_sdvo_enable_audio(struct intel_sdvo *intel_sdvo,
1733                                     const struct intel_crtc_state *crtc_state,
1734                                     const struct drm_connector_state *conn_state)
1735 {
1736         const struct drm_display_mode *adjusted_mode =
1737                 &crtc_state->hw.adjusted_mode;
1738         struct drm_connector *connector = conn_state->connector;
1739         u8 *eld = connector->eld;
1740
1741         eld[6] = drm_av_sync_delay(connector, adjusted_mode) / 2;
1742
1743         intel_sdvo_set_audio_state(intel_sdvo, 0);
1744
1745         intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_ELD,
1746                                    SDVO_HBUF_TX_DISABLED,
1747                                    eld, drm_eld_size(eld));
1748
1749         intel_sdvo_set_audio_state(intel_sdvo, SDVO_AUDIO_ELD_VALID |
1750                                    SDVO_AUDIO_PRESENCE_DETECT);
1751 }
1752
1753 static void intel_disable_sdvo(struct intel_atomic_state *state,
1754                                struct intel_encoder *encoder,
1755                                const struct intel_crtc_state *old_crtc_state,
1756                                const struct drm_connector_state *conn_state)
1757 {
1758         struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1759         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1760         struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->uapi.crtc);
1761         u32 temp;
1762
1763         if (old_crtc_state->has_audio)
1764                 intel_sdvo_disable_audio(intel_sdvo);
1765
1766         intel_sdvo_set_active_outputs(intel_sdvo, 0);
1767         if (0)
1768                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1769                                                    DRM_MODE_DPMS_OFF);
1770
1771         temp = intel_de_read(dev_priv, intel_sdvo->sdvo_reg);
1772
1773         temp &= ~SDVO_ENABLE;
1774         intel_sdvo_write_sdvox(intel_sdvo, temp);
1775
1776         /*
1777          * HW workaround for IBX, we need to move the port
1778          * to transcoder A after disabling it to allow the
1779          * matching DP port to be enabled on transcoder A.
1780          */
1781         if (HAS_PCH_IBX(dev_priv) && crtc->pipe == PIPE_B) {
1782                 /*
1783                  * We get CPU/PCH FIFO underruns on the other pipe when
1784                  * doing the workaround. Sweep them under the rug.
1785                  */
1786                 intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, false);
1787                 intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false);
1788
1789                 temp &= ~SDVO_PIPE_SEL_MASK;
1790                 temp |= SDVO_ENABLE | SDVO_PIPE_SEL(PIPE_A);
1791                 intel_sdvo_write_sdvox(intel_sdvo, temp);
1792
1793                 temp &= ~SDVO_ENABLE;
1794                 intel_sdvo_write_sdvox(intel_sdvo, temp);
1795
1796                 intel_wait_for_vblank_if_active(dev_priv, PIPE_A);
1797                 intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, true);
1798                 intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true);
1799         }
1800 }
1801
1802 static void pch_disable_sdvo(struct intel_atomic_state *state,
1803                              struct intel_encoder *encoder,
1804                              const struct intel_crtc_state *old_crtc_state,
1805                              const struct drm_connector_state *old_conn_state)
1806 {
1807 }
1808
1809 static void pch_post_disable_sdvo(struct intel_atomic_state *state,
1810                                   struct intel_encoder *encoder,
1811                                   const struct intel_crtc_state *old_crtc_state,
1812                                   const struct drm_connector_state *old_conn_state)
1813 {
1814         intel_disable_sdvo(state, encoder, old_crtc_state, old_conn_state);
1815 }
1816
1817 static void intel_enable_sdvo(struct intel_atomic_state *state,
1818                               struct intel_encoder *encoder,
1819                               const struct intel_crtc_state *pipe_config,
1820                               const struct drm_connector_state *conn_state)
1821 {
1822         struct drm_device *dev = encoder->base.dev;
1823         struct drm_i915_private *dev_priv = to_i915(dev);
1824         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1825         struct intel_crtc *intel_crtc = to_intel_crtc(pipe_config->uapi.crtc);
1826         u32 temp;
1827         bool input1, input2;
1828         int i;
1829         bool success;
1830
1831         temp = intel_de_read(dev_priv, intel_sdvo->sdvo_reg);
1832         temp |= SDVO_ENABLE;
1833         intel_sdvo_write_sdvox(intel_sdvo, temp);
1834
1835         for (i = 0; i < 2; i++)
1836                 intel_wait_for_vblank(dev_priv, intel_crtc->pipe);
1837
1838         success = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2);
1839         /*
1840          * Warn if the device reported failure to sync.
1841          *
1842          * A lot of SDVO devices fail to notify of sync, but it's
1843          * a given it the status is a success, we succeeded.
1844          */
1845         if (success && !input1) {
1846                 drm_dbg_kms(&dev_priv->drm,
1847                             "First %s output reported failure to "
1848                             "sync\n", SDVO_NAME(intel_sdvo));
1849         }
1850
1851         if (0)
1852                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1853                                                    DRM_MODE_DPMS_ON);
1854         intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1855
1856         if (pipe_config->has_audio)
1857                 intel_sdvo_enable_audio(intel_sdvo, pipe_config, conn_state);
1858 }
1859
1860 static enum drm_mode_status
1861 intel_sdvo_mode_valid(struct drm_connector *connector,
1862                       struct drm_display_mode *mode)
1863 {
1864         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(to_intel_connector(connector));
1865         struct intel_sdvo_connector *intel_sdvo_connector =
1866                 to_intel_sdvo_connector(connector);
1867         int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
1868         bool has_hdmi_sink = intel_has_hdmi_sink(intel_sdvo, connector->state);
1869         int clock = mode->clock;
1870
1871         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
1872                 return MODE_NO_DBLESCAN;
1873
1874
1875         if (clock > max_dotclk)
1876                 return MODE_CLOCK_HIGH;
1877
1878         if (mode->flags & DRM_MODE_FLAG_DBLCLK) {
1879                 if (!has_hdmi_sink)
1880                         return MODE_CLOCK_LOW;
1881                 clock *= 2;
1882         }
1883
1884         if (intel_sdvo->pixel_clock_min > clock)
1885                 return MODE_CLOCK_LOW;
1886
1887         if (intel_sdvo->pixel_clock_max < clock)
1888                 return MODE_CLOCK_HIGH;
1889
1890         if (IS_LVDS(intel_sdvo_connector)) {
1891                 const struct drm_display_mode *fixed_mode =
1892                         intel_sdvo_connector->base.panel.fixed_mode;
1893
1894                 if (mode->hdisplay > fixed_mode->hdisplay)
1895                         return MODE_PANEL;
1896
1897                 if (mode->vdisplay > fixed_mode->vdisplay)
1898                         return MODE_PANEL;
1899         }
1900
1901         return MODE_OK;
1902 }
1903
1904 static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct intel_sdvo_caps *caps)
1905 {
1906         BUILD_BUG_ON(sizeof(*caps) != 8);
1907         if (!intel_sdvo_get_value(intel_sdvo,
1908                                   SDVO_CMD_GET_DEVICE_CAPS,
1909                                   caps, sizeof(*caps)))
1910                 return false;
1911
1912         DRM_DEBUG_KMS("SDVO capabilities:\n"
1913                       "  vendor_id: %d\n"
1914                       "  device_id: %d\n"
1915                       "  device_rev_id: %d\n"
1916                       "  sdvo_version_major: %d\n"
1917                       "  sdvo_version_minor: %d\n"
1918                       "  sdvo_inputs_mask: %d\n"
1919                       "  smooth_scaling: %d\n"
1920                       "  sharp_scaling: %d\n"
1921                       "  up_scaling: %d\n"
1922                       "  down_scaling: %d\n"
1923                       "  stall_support: %d\n"
1924                       "  output_flags: %d\n",
1925                       caps->vendor_id,
1926                       caps->device_id,
1927                       caps->device_rev_id,
1928                       caps->sdvo_version_major,
1929                       caps->sdvo_version_minor,
1930                       caps->sdvo_inputs_mask,
1931                       caps->smooth_scaling,
1932                       caps->sharp_scaling,
1933                       caps->up_scaling,
1934                       caps->down_scaling,
1935                       caps->stall_support,
1936                       caps->output_flags);
1937
1938         return true;
1939 }
1940
1941 static u8 intel_sdvo_get_colorimetry_cap(struct intel_sdvo *intel_sdvo)
1942 {
1943         u8 cap;
1944
1945         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_COLORIMETRY_CAP,
1946                                   &cap, sizeof(cap)))
1947                 return SDVO_COLORIMETRY_RGB256;
1948
1949         return cap;
1950 }
1951
1952 static u16 intel_sdvo_get_hotplug_support(struct intel_sdvo *intel_sdvo)
1953 {
1954         struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev);
1955         u16 hotplug;
1956
1957         if (!I915_HAS_HOTPLUG(dev_priv))
1958                 return 0;
1959
1960         /*
1961          * HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise
1962          * on the line.
1963          */
1964         if (IS_I945G(dev_priv) || IS_I945GM(dev_priv))
1965                 return 0;
1966
1967         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
1968                                         &hotplug, sizeof(hotplug)))
1969                 return 0;
1970
1971         return hotplug;
1972 }
1973
1974 static void intel_sdvo_enable_hotplug(struct intel_encoder *encoder)
1975 {
1976         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1977
1978         intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG,
1979                              &intel_sdvo->hotplug_active, 2);
1980 }
1981
1982 static enum intel_hotplug_state
1983 intel_sdvo_hotplug(struct intel_encoder *encoder,
1984                    struct intel_connector *connector)
1985 {
1986         intel_sdvo_enable_hotplug(encoder);
1987
1988         return intel_encoder_hotplug(encoder, connector);
1989 }
1990
1991 static bool
1992 intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
1993 {
1994         /* Is there more than one type of output? */
1995         return hweight16(intel_sdvo->caps.output_flags) > 1;
1996 }
1997
1998 static struct edid *
1999 intel_sdvo_get_edid(struct drm_connector *connector)
2000 {
2001         struct intel_sdvo *sdvo = intel_attached_sdvo(to_intel_connector(connector));
2002         return drm_get_edid(connector, &sdvo->ddc);
2003 }
2004
2005 /* Mac mini hack -- use the same DDC as the analog connector */
2006 static struct edid *
2007 intel_sdvo_get_analog_edid(struct drm_connector *connector)
2008 {
2009         struct drm_i915_private *dev_priv = to_i915(connector->dev);
2010
2011         return drm_get_edid(connector,
2012                             intel_gmbus_get_adapter(dev_priv,
2013                                                     dev_priv->vbt.crt_ddc_pin));
2014 }
2015
2016 static enum drm_connector_status
2017 intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
2018 {
2019         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(to_intel_connector(connector));
2020         struct intel_sdvo_connector *intel_sdvo_connector =
2021                 to_intel_sdvo_connector(connector);
2022         enum drm_connector_status status;
2023         struct edid *edid;
2024
2025         edid = intel_sdvo_get_edid(connector);
2026
2027         if (edid == NULL && intel_sdvo_multifunc_encoder(intel_sdvo)) {
2028                 u8 ddc, saved_ddc = intel_sdvo->ddc_bus;
2029
2030                 /*
2031                  * Don't use the 1 as the argument of DDC bus switch to get
2032                  * the EDID. It is used for SDVO SPD ROM.
2033                  */
2034                 for (ddc = intel_sdvo->ddc_bus >> 1; ddc > 1; ddc >>= 1) {
2035                         intel_sdvo->ddc_bus = ddc;
2036                         edid = intel_sdvo_get_edid(connector);
2037                         if (edid)
2038                                 break;
2039                 }
2040                 /*
2041                  * If we found the EDID on the other bus,
2042                  * assume that is the correct DDC bus.
2043                  */
2044                 if (edid == NULL)
2045                         intel_sdvo->ddc_bus = saved_ddc;
2046         }
2047
2048         /*
2049          * When there is no edid and no monitor is connected with VGA
2050          * port, try to use the CRT ddc to read the EDID for DVI-connector.
2051          */
2052         if (edid == NULL)
2053                 edid = intel_sdvo_get_analog_edid(connector);
2054
2055         status = connector_status_unknown;
2056         if (edid != NULL) {
2057                 /* DDC bus is shared, match EDID to connector type */
2058                 if (edid->input & DRM_EDID_INPUT_DIGITAL) {
2059                         status = connector_status_connected;
2060                         if (intel_sdvo_connector->is_hdmi) {
2061                                 intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
2062                                 intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
2063                         }
2064                 } else
2065                         status = connector_status_disconnected;
2066                 kfree(edid);
2067         }
2068
2069         return status;
2070 }
2071
2072 static bool
2073 intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
2074                                   struct edid *edid)
2075 {
2076         bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
2077         bool connector_is_digital = !!IS_DIGITAL(sdvo);
2078
2079         DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n",
2080                       connector_is_digital, monitor_is_digital);
2081         return connector_is_digital == monitor_is_digital;
2082 }
2083
2084 static enum drm_connector_status
2085 intel_sdvo_detect(struct drm_connector *connector, bool force)
2086 {
2087         struct drm_i915_private *i915 = to_i915(connector->dev);
2088         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(to_intel_connector(connector));
2089         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
2090         enum drm_connector_status ret;
2091         u16 response;
2092
2093         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2094                       connector->base.id, connector->name);
2095
2096         if (!INTEL_DISPLAY_ENABLED(i915))
2097                 return connector_status_disconnected;
2098
2099         if (!intel_sdvo_get_value(intel_sdvo,
2100                                   SDVO_CMD_GET_ATTACHED_DISPLAYS,
2101                                   &response, 2))
2102                 return connector_status_unknown;
2103
2104         DRM_DEBUG_KMS("SDVO response %d %d [%x]\n",
2105                       response & 0xff, response >> 8,
2106                       intel_sdvo_connector->output_flag);
2107
2108         if (response == 0)
2109                 return connector_status_disconnected;
2110
2111         intel_sdvo->attached_output = response;
2112
2113         intel_sdvo->has_hdmi_monitor = false;
2114         intel_sdvo->has_hdmi_audio = false;
2115
2116         if ((intel_sdvo_connector->output_flag & response) == 0)
2117                 ret = connector_status_disconnected;
2118         else if (IS_TMDS(intel_sdvo_connector))
2119                 ret = intel_sdvo_tmds_sink_detect(connector);
2120         else {
2121                 struct edid *edid;
2122
2123                 /* if we have an edid check it matches the connection */
2124                 edid = intel_sdvo_get_edid(connector);
2125                 if (edid == NULL)
2126                         edid = intel_sdvo_get_analog_edid(connector);
2127                 if (edid != NULL) {
2128                         if (intel_sdvo_connector_matches_edid(intel_sdvo_connector,
2129                                                               edid))
2130                                 ret = connector_status_connected;
2131                         else
2132                                 ret = connector_status_disconnected;
2133
2134                         kfree(edid);
2135                 } else
2136                         ret = connector_status_connected;
2137         }
2138
2139         return ret;
2140 }
2141
2142 static int intel_sdvo_get_ddc_modes(struct drm_connector *connector)
2143 {
2144         int num_modes = 0;
2145         struct edid *edid;
2146
2147         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2148                       connector->base.id, connector->name);
2149
2150         /* set the bus switch and get the modes */
2151         edid = intel_sdvo_get_edid(connector);
2152
2153         /*
2154          * Mac mini hack.  On this device, the DVI-I connector shares one DDC
2155          * link between analog and digital outputs. So, if the regular SDVO
2156          * DDC fails, check to see if the analog output is disconnected, in
2157          * which case we'll look there for the digital DDC data.
2158          */
2159         if (!edid)
2160                 edid = intel_sdvo_get_analog_edid(connector);
2161
2162         if (!edid)
2163                 return 0;
2164
2165         if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector),
2166                                               edid))
2167                 num_modes += intel_connector_update_modes(connector, edid);
2168
2169         kfree(edid);
2170
2171         return num_modes;
2172 }
2173
2174 /*
2175  * Set of SDVO TV modes.
2176  * Note!  This is in reply order (see loop in get_tv_modes).
2177  * XXX: all 60Hz refresh?
2178  */
2179 static const struct drm_display_mode sdvo_tv_modes[] = {
2180         { DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 5815, 320, 321, 384,
2181                    416, 0, 200, 201, 232, 233, 0,
2182                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2183         { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 6814, 320, 321, 384,
2184                    416, 0, 240, 241, 272, 273, 0,
2185                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2186         { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 9910, 400, 401, 464,
2187                    496, 0, 300, 301, 332, 333, 0,
2188                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2189         { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 16913, 640, 641, 704,
2190                    736, 0, 350, 351, 382, 383, 0,
2191                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2192         { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 19121, 640, 641, 704,
2193                    736, 0, 400, 401, 432, 433, 0,
2194                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2195         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 22654, 640, 641, 704,
2196                    736, 0, 480, 481, 512, 513, 0,
2197                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2198         { DRM_MODE("704x480", DRM_MODE_TYPE_DRIVER, 24624, 704, 705, 768,
2199                    800, 0, 480, 481, 512, 513, 0,
2200                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2201         { DRM_MODE("704x576", DRM_MODE_TYPE_DRIVER, 29232, 704, 705, 768,
2202                    800, 0, 576, 577, 608, 609, 0,
2203                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2204         { DRM_MODE("720x350", DRM_MODE_TYPE_DRIVER, 18751, 720, 721, 784,
2205                    816, 0, 350, 351, 382, 383, 0,
2206                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2207         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 21199, 720, 721, 784,
2208                    816, 0, 400, 401, 432, 433, 0,
2209                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2210         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 25116, 720, 721, 784,
2211                    816, 0, 480, 481, 512, 513, 0,
2212                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2213         { DRM_MODE("720x540", DRM_MODE_TYPE_DRIVER, 28054, 720, 721, 784,
2214                    816, 0, 540, 541, 572, 573, 0,
2215                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2216         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 29816, 720, 721, 784,
2217                    816, 0, 576, 577, 608, 609, 0,
2218                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2219         { DRM_MODE("768x576", DRM_MODE_TYPE_DRIVER, 31570, 768, 769, 832,
2220                    864, 0, 576, 577, 608, 609, 0,
2221                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2222         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 34030, 800, 801, 864,
2223                    896, 0, 600, 601, 632, 633, 0,
2224                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2225         { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 36581, 832, 833, 896,
2226                    928, 0, 624, 625, 656, 657, 0,
2227                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2228         { DRM_MODE("920x766", DRM_MODE_TYPE_DRIVER, 48707, 920, 921, 984,
2229                    1016, 0, 766, 767, 798, 799, 0,
2230                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2231         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 53827, 1024, 1025, 1088,
2232                    1120, 0, 768, 769, 800, 801, 0,
2233                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2234         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 87265, 1280, 1281, 1344,
2235                    1376, 0, 1024, 1025, 1056, 1057, 0,
2236                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2237 };
2238
2239 static int intel_sdvo_get_tv_modes(struct drm_connector *connector)
2240 {
2241         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(to_intel_connector(connector));
2242         const struct drm_connector_state *conn_state = connector->state;
2243         struct intel_sdvo_sdtv_resolution_request tv_res;
2244         u32 reply = 0, format_map = 0;
2245         int num_modes = 0;
2246         int i;
2247
2248         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2249                       connector->base.id, connector->name);
2250
2251         /*
2252          * Read the list of supported input resolutions for the selected TV
2253          * format.
2254          */
2255         format_map = 1 << conn_state->tv.mode;
2256         memcpy(&tv_res, &format_map,
2257                min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request)));
2258
2259         if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo->attached_output))
2260                 return 0;
2261
2262         BUILD_BUG_ON(sizeof(tv_res) != 3);
2263         if (!intel_sdvo_write_cmd(intel_sdvo,
2264                                   SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT,
2265                                   &tv_res, sizeof(tv_res)))
2266                 return 0;
2267         if (!intel_sdvo_read_response(intel_sdvo, &reply, 3))
2268                 return 0;
2269
2270         for (i = 0; i < ARRAY_SIZE(sdvo_tv_modes); i++) {
2271                 if (reply & (1 << i)) {
2272                         struct drm_display_mode *nmode;
2273                         nmode = drm_mode_duplicate(connector->dev,
2274                                                    &sdvo_tv_modes[i]);
2275                         if (nmode) {
2276                                 drm_mode_probed_add(connector, nmode);
2277                                 num_modes++;
2278                         }
2279                 }
2280         }
2281
2282         return num_modes;
2283 }
2284
2285 static int intel_sdvo_get_lvds_modes(struct drm_connector *connector)
2286 {
2287         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(to_intel_connector(connector));
2288         struct drm_i915_private *dev_priv = to_i915(connector->dev);
2289         struct drm_display_mode *newmode;
2290         int num_modes = 0;
2291
2292         drm_dbg_kms(&dev_priv->drm, "[CONNECTOR:%d:%s]\n",
2293                     connector->base.id, connector->name);
2294
2295         /*
2296          * Fetch modes from VBT. For SDVO prefer the VBT mode since some
2297          * SDVO->LVDS transcoders can't cope with the EDID mode.
2298          */
2299         if (dev_priv->vbt.sdvo_lvds_vbt_mode != NULL) {
2300                 newmode = drm_mode_duplicate(connector->dev,
2301                                              dev_priv->vbt.sdvo_lvds_vbt_mode);
2302                 if (newmode != NULL) {
2303                         /* Guarantee the mode is preferred */
2304                         newmode->type = (DRM_MODE_TYPE_PREFERRED |
2305                                          DRM_MODE_TYPE_DRIVER);
2306                         drm_mode_probed_add(connector, newmode);
2307                         num_modes++;
2308                 }
2309         }
2310
2311         /*
2312          * Attempt to get the mode list from DDC.
2313          * Assume that the preferred modes are
2314          * arranged in priority order.
2315          */
2316         num_modes += intel_ddc_get_modes(connector, &intel_sdvo->ddc);
2317
2318         return num_modes;
2319 }
2320
2321 static int intel_sdvo_get_modes(struct drm_connector *connector)
2322 {
2323         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
2324
2325         if (IS_TV(intel_sdvo_connector))
2326                 return intel_sdvo_get_tv_modes(connector);
2327         else if (IS_LVDS(intel_sdvo_connector))
2328                 return intel_sdvo_get_lvds_modes(connector);
2329         else
2330                 return intel_sdvo_get_ddc_modes(connector);
2331 }
2332
2333 static int
2334 intel_sdvo_connector_atomic_get_property(struct drm_connector *connector,
2335                                          const struct drm_connector_state *state,
2336                                          struct drm_property *property,
2337                                          u64 *val)
2338 {
2339         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
2340         const struct intel_sdvo_connector_state *sdvo_state = to_intel_sdvo_connector_state((void *)state);
2341
2342         if (property == intel_sdvo_connector->tv_format) {
2343                 int i;
2344
2345                 for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
2346                         if (state->tv.mode == intel_sdvo_connector->tv_format_supported[i]) {
2347                                 *val = i;
2348
2349                                 return 0;
2350                         }
2351
2352                 drm_WARN_ON(connector->dev, 1);
2353                 *val = 0;
2354         } else if (property == intel_sdvo_connector->top ||
2355                    property == intel_sdvo_connector->bottom)
2356                 *val = intel_sdvo_connector->max_vscan - sdvo_state->tv.overscan_v;
2357         else if (property == intel_sdvo_connector->left ||
2358                  property == intel_sdvo_connector->right)
2359                 *val = intel_sdvo_connector->max_hscan - sdvo_state->tv.overscan_h;
2360         else if (property == intel_sdvo_connector->hpos)
2361                 *val = sdvo_state->tv.hpos;
2362         else if (property == intel_sdvo_connector->vpos)
2363                 *val = sdvo_state->tv.vpos;
2364         else if (property == intel_sdvo_connector->saturation)
2365                 *val = state->tv.saturation;
2366         else if (property == intel_sdvo_connector->contrast)
2367                 *val = state->tv.contrast;
2368         else if (property == intel_sdvo_connector->hue)
2369                 *val = state->tv.hue;
2370         else if (property == intel_sdvo_connector->brightness)
2371                 *val = state->tv.brightness;
2372         else if (property == intel_sdvo_connector->sharpness)
2373                 *val = sdvo_state->tv.sharpness;
2374         else if (property == intel_sdvo_connector->flicker_filter)
2375                 *val = sdvo_state->tv.flicker_filter;
2376         else if (property == intel_sdvo_connector->flicker_filter_2d)
2377                 *val = sdvo_state->tv.flicker_filter_2d;
2378         else if (property == intel_sdvo_connector->flicker_filter_adaptive)
2379                 *val = sdvo_state->tv.flicker_filter_adaptive;
2380         else if (property == intel_sdvo_connector->tv_chroma_filter)
2381                 *val = sdvo_state->tv.chroma_filter;
2382         else if (property == intel_sdvo_connector->tv_luma_filter)
2383                 *val = sdvo_state->tv.luma_filter;
2384         else if (property == intel_sdvo_connector->dot_crawl)
2385                 *val = sdvo_state->tv.dot_crawl;
2386         else
2387                 return intel_digital_connector_atomic_get_property(connector, state, property, val);
2388
2389         return 0;
2390 }
2391
2392 static int
2393 intel_sdvo_connector_atomic_set_property(struct drm_connector *connector,
2394                                          struct drm_connector_state *state,
2395                                          struct drm_property *property,
2396                                          u64 val)
2397 {
2398         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
2399         struct intel_sdvo_connector_state *sdvo_state = to_intel_sdvo_connector_state(state);
2400
2401         if (property == intel_sdvo_connector->tv_format) {
2402                 state->tv.mode = intel_sdvo_connector->tv_format_supported[val];
2403
2404                 if (state->crtc) {
2405                         struct drm_crtc_state *crtc_state =
2406                                 drm_atomic_get_new_crtc_state(state->state, state->crtc);
2407
2408                         crtc_state->connectors_changed = true;
2409                 }
2410         } else if (property == intel_sdvo_connector->top ||
2411                    property == intel_sdvo_connector->bottom)
2412                 /* Cannot set these independent from each other */
2413                 sdvo_state->tv.overscan_v = intel_sdvo_connector->max_vscan - val;
2414         else if (property == intel_sdvo_connector->left ||
2415                  property == intel_sdvo_connector->right)
2416                 /* Cannot set these independent from each other */
2417                 sdvo_state->tv.overscan_h = intel_sdvo_connector->max_hscan - val;
2418         else if (property == intel_sdvo_connector->hpos)
2419                 sdvo_state->tv.hpos = val;
2420         else if (property == intel_sdvo_connector->vpos)
2421                 sdvo_state->tv.vpos = val;
2422         else if (property == intel_sdvo_connector->saturation)
2423                 state->tv.saturation = val;
2424         else if (property == intel_sdvo_connector->contrast)
2425                 state->tv.contrast = val;
2426         else if (property == intel_sdvo_connector->hue)
2427                 state->tv.hue = val;
2428         else if (property == intel_sdvo_connector->brightness)
2429                 state->tv.brightness = val;
2430         else if (property == intel_sdvo_connector->sharpness)
2431                 sdvo_state->tv.sharpness = val;
2432         else if (property == intel_sdvo_connector->flicker_filter)
2433                 sdvo_state->tv.flicker_filter = val;
2434         else if (property == intel_sdvo_connector->flicker_filter_2d)
2435                 sdvo_state->tv.flicker_filter_2d = val;
2436         else if (property == intel_sdvo_connector->flicker_filter_adaptive)
2437                 sdvo_state->tv.flicker_filter_adaptive = val;
2438         else if (property == intel_sdvo_connector->tv_chroma_filter)
2439                 sdvo_state->tv.chroma_filter = val;
2440         else if (property == intel_sdvo_connector->tv_luma_filter)
2441                 sdvo_state->tv.luma_filter = val;
2442         else if (property == intel_sdvo_connector->dot_crawl)
2443                 sdvo_state->tv.dot_crawl = val;
2444         else
2445                 return intel_digital_connector_atomic_set_property(connector, state, property, val);
2446
2447         return 0;
2448 }
2449
2450 static int
2451 intel_sdvo_connector_register(struct drm_connector *connector)
2452 {
2453         struct intel_sdvo *sdvo = intel_attached_sdvo(to_intel_connector(connector));
2454         int ret;
2455
2456         ret = intel_connector_register(connector);
2457         if (ret)
2458                 return ret;
2459
2460         return sysfs_create_link(&connector->kdev->kobj,
2461                                  &sdvo->ddc.dev.kobj,
2462                                  sdvo->ddc.dev.kobj.name);
2463 }
2464
2465 static void
2466 intel_sdvo_connector_unregister(struct drm_connector *connector)
2467 {
2468         struct intel_sdvo *sdvo = intel_attached_sdvo(to_intel_connector(connector));
2469
2470         sysfs_remove_link(&connector->kdev->kobj,
2471                           sdvo->ddc.dev.kobj.name);
2472         intel_connector_unregister(connector);
2473 }
2474
2475 static struct drm_connector_state *
2476 intel_sdvo_connector_duplicate_state(struct drm_connector *connector)
2477 {
2478         struct intel_sdvo_connector_state *state;
2479
2480         state = kmemdup(connector->state, sizeof(*state), GFP_KERNEL);
2481         if (!state)
2482                 return NULL;
2483
2484         __drm_atomic_helper_connector_duplicate_state(connector, &state->base.base);
2485         return &state->base.base;
2486 }
2487
2488 static const struct drm_connector_funcs intel_sdvo_connector_funcs = {
2489         .detect = intel_sdvo_detect,
2490         .fill_modes = drm_helper_probe_single_connector_modes,
2491         .atomic_get_property = intel_sdvo_connector_atomic_get_property,
2492         .atomic_set_property = intel_sdvo_connector_atomic_set_property,
2493         .late_register = intel_sdvo_connector_register,
2494         .early_unregister = intel_sdvo_connector_unregister,
2495         .destroy = intel_connector_destroy,
2496         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
2497         .atomic_duplicate_state = intel_sdvo_connector_duplicate_state,
2498 };
2499
2500 static int intel_sdvo_atomic_check(struct drm_connector *conn,
2501                                    struct drm_atomic_state *state)
2502 {
2503         struct drm_connector_state *new_conn_state =
2504                 drm_atomic_get_new_connector_state(state, conn);
2505         struct drm_connector_state *old_conn_state =
2506                 drm_atomic_get_old_connector_state(state, conn);
2507         struct intel_sdvo_connector_state *old_state =
2508                 to_intel_sdvo_connector_state(old_conn_state);
2509         struct intel_sdvo_connector_state *new_state =
2510                 to_intel_sdvo_connector_state(new_conn_state);
2511
2512         if (new_conn_state->crtc &&
2513             (memcmp(&old_state->tv, &new_state->tv, sizeof(old_state->tv)) ||
2514              memcmp(&old_conn_state->tv, &new_conn_state->tv, sizeof(old_conn_state->tv)))) {
2515                 struct drm_crtc_state *crtc_state =
2516                         drm_atomic_get_new_crtc_state(state,
2517                                                       new_conn_state->crtc);
2518
2519                 crtc_state->connectors_changed = true;
2520         }
2521
2522         return intel_digital_connector_atomic_check(conn, state);
2523 }
2524
2525 static const struct drm_connector_helper_funcs intel_sdvo_connector_helper_funcs = {
2526         .get_modes = intel_sdvo_get_modes,
2527         .mode_valid = intel_sdvo_mode_valid,
2528         .atomic_check = intel_sdvo_atomic_check,
2529 };
2530
2531 static void intel_sdvo_enc_destroy(struct drm_encoder *encoder)
2532 {
2533         struct intel_sdvo *intel_sdvo = to_sdvo(to_intel_encoder(encoder));
2534
2535         i2c_del_adapter(&intel_sdvo->ddc);
2536         intel_encoder_destroy(encoder);
2537 }
2538
2539 static const struct drm_encoder_funcs intel_sdvo_enc_funcs = {
2540         .destroy = intel_sdvo_enc_destroy,
2541 };
2542
2543 static void
2544 intel_sdvo_guess_ddc_bus(struct intel_sdvo *sdvo)
2545 {
2546         u16 mask = 0;
2547         unsigned int num_bits;
2548
2549         /*
2550          * Make a mask of outputs less than or equal to our own priority in the
2551          * list.
2552          */
2553         switch (sdvo->controlled_output) {
2554         case SDVO_OUTPUT_LVDS1:
2555                 mask |= SDVO_OUTPUT_LVDS1;
2556                 fallthrough;
2557         case SDVO_OUTPUT_LVDS0:
2558                 mask |= SDVO_OUTPUT_LVDS0;
2559                 fallthrough;
2560         case SDVO_OUTPUT_TMDS1:
2561                 mask |= SDVO_OUTPUT_TMDS1;
2562                 fallthrough;
2563         case SDVO_OUTPUT_TMDS0:
2564                 mask |= SDVO_OUTPUT_TMDS0;
2565                 fallthrough;
2566         case SDVO_OUTPUT_RGB1:
2567                 mask |= SDVO_OUTPUT_RGB1;
2568                 fallthrough;
2569         case SDVO_OUTPUT_RGB0:
2570                 mask |= SDVO_OUTPUT_RGB0;
2571                 break;
2572         }
2573
2574         /* Count bits to find what number we are in the priority list. */
2575         mask &= sdvo->caps.output_flags;
2576         num_bits = hweight16(mask);
2577         /* If more than 3 outputs, default to DDC bus 3 for now. */
2578         if (num_bits > 3)
2579                 num_bits = 3;
2580
2581         /* Corresponds to SDVO_CONTROL_BUS_DDCx */
2582         sdvo->ddc_bus = 1 << num_bits;
2583 }
2584
2585 /*
2586  * Choose the appropriate DDC bus for control bus switch command for this
2587  * SDVO output based on the controlled output.
2588  *
2589  * DDC bus number assignment is in a priority order of RGB outputs, then TMDS
2590  * outputs, then LVDS outputs.
2591  */
2592 static void
2593 intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv,
2594                           struct intel_sdvo *sdvo)
2595 {
2596         struct sdvo_device_mapping *mapping;
2597
2598         if (sdvo->port == PORT_B)
2599                 mapping = &dev_priv->vbt.sdvo_mappings[0];
2600         else
2601                 mapping = &dev_priv->vbt.sdvo_mappings[1];
2602
2603         if (mapping->initialized)
2604                 sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
2605         else
2606                 intel_sdvo_guess_ddc_bus(sdvo);
2607 }
2608
2609 static void
2610 intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
2611                           struct intel_sdvo *sdvo)
2612 {
2613         struct sdvo_device_mapping *mapping;
2614         u8 pin;
2615
2616         if (sdvo->port == PORT_B)
2617                 mapping = &dev_priv->vbt.sdvo_mappings[0];
2618         else
2619                 mapping = &dev_priv->vbt.sdvo_mappings[1];
2620
2621         if (mapping->initialized &&
2622             intel_gmbus_is_valid_pin(dev_priv, mapping->i2c_pin))
2623                 pin = mapping->i2c_pin;
2624         else
2625                 pin = GMBUS_PIN_DPB;
2626
2627         sdvo->i2c = intel_gmbus_get_adapter(dev_priv, pin);
2628
2629         /*
2630          * With gmbus we should be able to drive sdvo i2c at 2MHz, but somehow
2631          * our code totally fails once we start using gmbus. Hence fall back to
2632          * bit banging for now.
2633          */
2634         intel_gmbus_force_bit(sdvo->i2c, true);
2635 }
2636
2637 /* undo any changes intel_sdvo_select_i2c_bus() did to sdvo->i2c */
2638 static void
2639 intel_sdvo_unselect_i2c_bus(struct intel_sdvo *sdvo)
2640 {
2641         intel_gmbus_force_bit(sdvo->i2c, false);
2642 }
2643
2644 static bool
2645 intel_sdvo_is_hdmi_connector(struct intel_sdvo *intel_sdvo, int device)
2646 {
2647         return intel_sdvo_check_supp_encode(intel_sdvo);
2648 }
2649
2650 static u8
2651 intel_sdvo_get_slave_addr(struct drm_i915_private *dev_priv,
2652                           struct intel_sdvo *sdvo)
2653 {
2654         struct sdvo_device_mapping *my_mapping, *other_mapping;
2655
2656         if (sdvo->port == PORT_B) {
2657                 my_mapping = &dev_priv->vbt.sdvo_mappings[0];
2658                 other_mapping = &dev_priv->vbt.sdvo_mappings[1];
2659         } else {
2660                 my_mapping = &dev_priv->vbt.sdvo_mappings[1];
2661                 other_mapping = &dev_priv->vbt.sdvo_mappings[0];
2662         }
2663
2664         /* If the BIOS described our SDVO device, take advantage of it. */
2665         if (my_mapping->slave_addr)
2666                 return my_mapping->slave_addr;
2667
2668         /*
2669          * If the BIOS only described a different SDVO device, use the
2670          * address that it isn't using.
2671          */
2672         if (other_mapping->slave_addr) {
2673                 if (other_mapping->slave_addr == 0x70)
2674                         return 0x72;
2675                 else
2676                         return 0x70;
2677         }
2678
2679         /*
2680          * No SDVO device info is found for another DVO port,
2681          * so use mapping assumption we had before BIOS parsing.
2682          */
2683         if (sdvo->port == PORT_B)
2684                 return 0x70;
2685         else
2686                 return 0x72;
2687 }
2688
2689 static int
2690 intel_sdvo_connector_init(struct intel_sdvo_connector *connector,
2691                           struct intel_sdvo *encoder)
2692 {
2693         struct drm_connector *drm_connector;
2694         int ret;
2695
2696         drm_connector = &connector->base.base;
2697         ret = drm_connector_init(encoder->base.base.dev,
2698                            drm_connector,
2699                            &intel_sdvo_connector_funcs,
2700                            connector->base.base.connector_type);
2701         if (ret < 0)
2702                 return ret;
2703
2704         drm_connector_helper_add(drm_connector,
2705                                  &intel_sdvo_connector_helper_funcs);
2706
2707         connector->base.base.interlace_allowed = 1;
2708         connector->base.base.doublescan_allowed = 0;
2709         connector->base.base.display_info.subpixel_order = SubPixelHorizontalRGB;
2710         connector->base.get_hw_state = intel_sdvo_connector_get_hw_state;
2711
2712         intel_connector_attach_encoder(&connector->base, &encoder->base);
2713
2714         return 0;
2715 }
2716
2717 static void
2718 intel_sdvo_add_hdmi_properties(struct intel_sdvo *intel_sdvo,
2719                                struct intel_sdvo_connector *connector)
2720 {
2721         intel_attach_force_audio_property(&connector->base.base);
2722         if (intel_sdvo->colorimetry_cap & SDVO_COLORIMETRY_RGB220)
2723                 intel_attach_broadcast_rgb_property(&connector->base.base);
2724         intel_attach_aspect_ratio_property(&connector->base.base);
2725 }
2726
2727 static struct intel_sdvo_connector *intel_sdvo_connector_alloc(void)
2728 {
2729         struct intel_sdvo_connector *sdvo_connector;
2730         struct intel_sdvo_connector_state *conn_state;
2731
2732         sdvo_connector = kzalloc(sizeof(*sdvo_connector), GFP_KERNEL);
2733         if (!sdvo_connector)
2734                 return NULL;
2735
2736         conn_state = kzalloc(sizeof(*conn_state), GFP_KERNEL);
2737         if (!conn_state) {
2738                 kfree(sdvo_connector);
2739                 return NULL;
2740         }
2741
2742         __drm_atomic_helper_connector_reset(&sdvo_connector->base.base,
2743                                             &conn_state->base.base);
2744
2745         return sdvo_connector;
2746 }
2747
2748 static bool
2749 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
2750 {
2751         struct drm_encoder *encoder = &intel_sdvo->base.base;
2752         struct drm_connector *connector;
2753         struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
2754         struct intel_connector *intel_connector;
2755         struct intel_sdvo_connector *intel_sdvo_connector;
2756
2757         DRM_DEBUG_KMS("initialising DVI device %d\n", device);
2758
2759         intel_sdvo_connector = intel_sdvo_connector_alloc();
2760         if (!intel_sdvo_connector)
2761                 return false;
2762
2763         if (device == 0)
2764                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS0;
2765         else if (device == 1)
2766                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS1;
2767
2768         intel_connector = &intel_sdvo_connector->base;
2769         connector = &intel_connector->base;
2770         if (intel_sdvo_get_hotplug_support(intel_sdvo) &
2771                 intel_sdvo_connector->output_flag) {
2772                 intel_sdvo->hotplug_active |= intel_sdvo_connector->output_flag;
2773                 /*
2774                  * Some SDVO devices have one-shot hotplug interrupts.
2775                  * Ensure that they get re-enabled when an interrupt happens.
2776                  */
2777                 intel_connector->polled = DRM_CONNECTOR_POLL_HPD;
2778                 intel_encoder->hotplug = intel_sdvo_hotplug;
2779                 intel_sdvo_enable_hotplug(intel_encoder);
2780         } else {
2781                 intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
2782         }
2783         encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
2784         connector->connector_type = DRM_MODE_CONNECTOR_DVID;
2785
2786         if (intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
2787                 connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
2788                 intel_sdvo_connector->is_hdmi = true;
2789         }
2790
2791         if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2792                 kfree(intel_sdvo_connector);
2793                 return false;
2794         }
2795
2796         if (intel_sdvo_connector->is_hdmi)
2797                 intel_sdvo_add_hdmi_properties(intel_sdvo, intel_sdvo_connector);
2798
2799         return true;
2800 }
2801
2802 static bool
2803 intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
2804 {
2805         struct drm_encoder *encoder = &intel_sdvo->base.base;
2806         struct drm_connector *connector;
2807         struct intel_connector *intel_connector;
2808         struct intel_sdvo_connector *intel_sdvo_connector;
2809
2810         DRM_DEBUG_KMS("initialising TV type %d\n", type);
2811
2812         intel_sdvo_connector = intel_sdvo_connector_alloc();
2813         if (!intel_sdvo_connector)
2814                 return false;
2815
2816         intel_connector = &intel_sdvo_connector->base;
2817         connector = &intel_connector->base;
2818         encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
2819         connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
2820
2821         intel_sdvo_connector->output_flag = type;
2822
2823         if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2824                 kfree(intel_sdvo_connector);
2825                 return false;
2826         }
2827
2828         if (!intel_sdvo_tv_create_property(intel_sdvo, intel_sdvo_connector, type))
2829                 goto err;
2830
2831         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2832                 goto err;
2833
2834         return true;
2835
2836 err:
2837         intel_connector_destroy(connector);
2838         return false;
2839 }
2840
2841 static bool
2842 intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device)
2843 {
2844         struct drm_encoder *encoder = &intel_sdvo->base.base;
2845         struct drm_connector *connector;
2846         struct intel_connector *intel_connector;
2847         struct intel_sdvo_connector *intel_sdvo_connector;
2848
2849         DRM_DEBUG_KMS("initialising analog device %d\n", device);
2850
2851         intel_sdvo_connector = intel_sdvo_connector_alloc();
2852         if (!intel_sdvo_connector)
2853                 return false;
2854
2855         intel_connector = &intel_sdvo_connector->base;
2856         connector = &intel_connector->base;
2857         intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT;
2858         encoder->encoder_type = DRM_MODE_ENCODER_DAC;
2859         connector->connector_type = DRM_MODE_CONNECTOR_VGA;
2860
2861         if (device == 0)
2862                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB0;
2863         else if (device == 1)
2864                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1;
2865
2866         if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2867                 kfree(intel_sdvo_connector);
2868                 return false;
2869         }
2870
2871         return true;
2872 }
2873
2874 static bool
2875 intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
2876 {
2877         struct drm_encoder *encoder = &intel_sdvo->base.base;
2878         struct drm_connector *connector;
2879         struct intel_connector *intel_connector;
2880         struct intel_sdvo_connector *intel_sdvo_connector;
2881         struct drm_display_mode *mode;
2882
2883         DRM_DEBUG_KMS("initialising LVDS device %d\n", device);
2884
2885         intel_sdvo_connector = intel_sdvo_connector_alloc();
2886         if (!intel_sdvo_connector)
2887                 return false;
2888
2889         intel_connector = &intel_sdvo_connector->base;
2890         connector = &intel_connector->base;
2891         encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
2892         connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
2893
2894         if (device == 0)
2895                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS0;
2896         else if (device == 1)
2897                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1;
2898
2899         if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2900                 kfree(intel_sdvo_connector);
2901                 return false;
2902         }
2903
2904         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2905                 goto err;
2906
2907         intel_sdvo_get_lvds_modes(connector);
2908
2909         list_for_each_entry(mode, &connector->probed_modes, head) {
2910                 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
2911                         struct drm_display_mode *fixed_mode =
2912                                 drm_mode_duplicate(connector->dev, mode);
2913
2914                         intel_panel_init(&intel_connector->panel,
2915                                          fixed_mode, NULL);
2916                         break;
2917                 }
2918         }
2919
2920         if (!intel_connector->panel.fixed_mode)
2921                 goto err;
2922
2923         return true;
2924
2925 err:
2926         intel_connector_destroy(connector);
2927         return false;
2928 }
2929
2930 static u16 intel_sdvo_filter_output_flags(u16 flags)
2931 {
2932         flags &= SDVO_OUTPUT_MASK;
2933
2934         /* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
2935         if (!(flags & SDVO_OUTPUT_TMDS0))
2936                 flags &= ~SDVO_OUTPUT_TMDS1;
2937
2938         if (!(flags & SDVO_OUTPUT_RGB0))
2939                 flags &= ~SDVO_OUTPUT_RGB1;
2940
2941         if (!(flags & SDVO_OUTPUT_LVDS0))
2942                 flags &= ~SDVO_OUTPUT_LVDS1;
2943
2944         return flags;
2945 }
2946
2947 static bool
2948 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, u16 flags)
2949 {
2950         struct drm_i915_private *i915 = to_i915(intel_sdvo->base.base.dev);
2951
2952         flags = intel_sdvo_filter_output_flags(flags);
2953
2954         intel_sdvo->controlled_output = flags;
2955
2956         intel_sdvo_select_ddc_bus(i915, intel_sdvo);
2957
2958         if (flags & SDVO_OUTPUT_TMDS0)
2959                 if (!intel_sdvo_dvi_init(intel_sdvo, 0))
2960                         return false;
2961
2962         if (flags & SDVO_OUTPUT_TMDS1)
2963                 if (!intel_sdvo_dvi_init(intel_sdvo, 1))
2964                         return false;
2965
2966         /* TV has no XXX1 function block */
2967         if (flags & SDVO_OUTPUT_SVID0)
2968                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_SVID0))
2969                         return false;
2970
2971         if (flags & SDVO_OUTPUT_CVBS0)
2972                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_CVBS0))
2973                         return false;
2974
2975         if (flags & SDVO_OUTPUT_YPRPB0)
2976                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_YPRPB0))
2977                         return false;
2978
2979         if (flags & SDVO_OUTPUT_RGB0)
2980                 if (!intel_sdvo_analog_init(intel_sdvo, 0))
2981                         return false;
2982
2983         if (flags & SDVO_OUTPUT_RGB1)
2984                 if (!intel_sdvo_analog_init(intel_sdvo, 1))
2985                         return false;
2986
2987         if (flags & SDVO_OUTPUT_LVDS0)
2988                 if (!intel_sdvo_lvds_init(intel_sdvo, 0))
2989                         return false;
2990
2991         if (flags & SDVO_OUTPUT_LVDS1)
2992                 if (!intel_sdvo_lvds_init(intel_sdvo, 1))
2993                         return false;
2994
2995         if (flags == 0) {
2996                 unsigned char bytes[2];
2997
2998                 memcpy(bytes, &intel_sdvo->caps.output_flags, 2);
2999                 DRM_DEBUG_KMS("%s: Unknown SDVO output type (0x%02x%02x)\n",
3000                               SDVO_NAME(intel_sdvo),
3001                               bytes[0], bytes[1]);
3002                 return false;
3003         }
3004         intel_sdvo->base.pipe_mask = ~0;
3005
3006         return true;
3007 }
3008
3009 static void intel_sdvo_output_cleanup(struct intel_sdvo *intel_sdvo)
3010 {
3011         struct drm_device *dev = intel_sdvo->base.base.dev;
3012         struct drm_connector *connector, *tmp;
3013
3014         list_for_each_entry_safe(connector, tmp,
3015                                  &dev->mode_config.connector_list, head) {
3016                 if (intel_attached_encoder(to_intel_connector(connector)) == &intel_sdvo->base) {
3017                         drm_connector_unregister(connector);
3018                         intel_connector_destroy(connector);
3019                 }
3020         }
3021 }
3022
3023 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
3024                                           struct intel_sdvo_connector *intel_sdvo_connector,
3025                                           int type)
3026 {
3027         struct drm_device *dev = intel_sdvo->base.base.dev;
3028         struct intel_sdvo_tv_format format;
3029         u32 format_map, i;
3030
3031         if (!intel_sdvo_set_target_output(intel_sdvo, type))
3032                 return false;
3033
3034         BUILD_BUG_ON(sizeof(format) != 6);
3035         if (!intel_sdvo_get_value(intel_sdvo,
3036                                   SDVO_CMD_GET_SUPPORTED_TV_FORMATS,
3037                                   &format, sizeof(format)))
3038                 return false;
3039
3040         memcpy(&format_map, &format, min(sizeof(format_map), sizeof(format)));
3041
3042         if (format_map == 0)
3043                 return false;
3044
3045         intel_sdvo_connector->format_supported_num = 0;
3046         for (i = 0 ; i < TV_FORMAT_NUM; i++)
3047                 if (format_map & (1 << i))
3048                         intel_sdvo_connector->tv_format_supported[intel_sdvo_connector->format_supported_num++] = i;
3049
3050
3051         intel_sdvo_connector->tv_format =
3052                         drm_property_create(dev, DRM_MODE_PROP_ENUM,
3053                                             "mode", intel_sdvo_connector->format_supported_num);
3054         if (!intel_sdvo_connector->tv_format)
3055                 return false;
3056
3057         for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
3058                 drm_property_add_enum(intel_sdvo_connector->tv_format, i,
3059                                       tv_format_names[intel_sdvo_connector->tv_format_supported[i]]);
3060
3061         intel_sdvo_connector->base.base.state->tv.mode = intel_sdvo_connector->tv_format_supported[0];
3062         drm_object_attach_property(&intel_sdvo_connector->base.base.base,
3063                                    intel_sdvo_connector->tv_format, 0);
3064         return true;
3065
3066 }
3067
3068 #define _ENHANCEMENT(state_assignment, name, NAME) do { \
3069         if (enhancements.name) { \
3070                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_MAX_##NAME, &data_value, 4) || \
3071                     !intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_##NAME, &response, 2)) \
3072                         return false; \
3073                 intel_sdvo_connector->name = \
3074                         drm_property_create_range(dev, 0, #name, 0, data_value[0]); \
3075                 if (!intel_sdvo_connector->name) return false; \
3076                 state_assignment = response; \
3077                 drm_object_attach_property(&connector->base, \
3078                                            intel_sdvo_connector->name, 0); \
3079                 DRM_DEBUG_KMS(#name ": max %d, default %d, current %d\n", \
3080                               data_value[0], data_value[1], response); \
3081         } \
3082 } while (0)
3083
3084 #define ENHANCEMENT(state, name, NAME) _ENHANCEMENT((state)->name, name, NAME)
3085
3086 static bool
3087 intel_sdvo_create_enhance_property_tv(struct intel_sdvo *intel_sdvo,
3088                                       struct intel_sdvo_connector *intel_sdvo_connector,
3089                                       struct intel_sdvo_enhancements_reply enhancements)
3090 {
3091         struct drm_device *dev = intel_sdvo->base.base.dev;
3092         struct drm_connector *connector = &intel_sdvo_connector->base.base;
3093         struct drm_connector_state *conn_state = connector->state;
3094         struct intel_sdvo_connector_state *sdvo_state =
3095                 to_intel_sdvo_connector_state(conn_state);
3096         u16 response, data_value[2];
3097
3098         /* when horizontal overscan is supported, Add the left/right property */
3099         if (enhancements.overscan_h) {
3100                 if (!intel_sdvo_get_value(intel_sdvo,
3101                                           SDVO_CMD_GET_MAX_OVERSCAN_H,
3102                                           &data_value, 4))
3103                         return false;
3104
3105                 if (!intel_sdvo_get_value(intel_sdvo,
3106                                           SDVO_CMD_GET_OVERSCAN_H,
3107                                           &response, 2))
3108                         return false;
3109
3110                 sdvo_state->tv.overscan_h = response;
3111
3112                 intel_sdvo_connector->max_hscan = data_value[0];
3113                 intel_sdvo_connector->left =
3114                         drm_property_create_range(dev, 0, "left_margin", 0, data_value[0]);
3115                 if (!intel_sdvo_connector->left)
3116                         return false;
3117
3118                 drm_object_attach_property(&connector->base,
3119                                            intel_sdvo_connector->left, 0);
3120
3121                 intel_sdvo_connector->right =
3122                         drm_property_create_range(dev, 0, "right_margin", 0, data_value[0]);
3123                 if (!intel_sdvo_connector->right)
3124                         return false;
3125
3126                 drm_object_attach_property(&connector->base,
3127                                               intel_sdvo_connector->right, 0);
3128                 DRM_DEBUG_KMS("h_overscan: max %d, "
3129                               "default %d, current %d\n",
3130                               data_value[0], data_value[1], response);
3131         }
3132
3133         if (enhancements.overscan_v) {
3134                 if (!intel_sdvo_get_value(intel_sdvo,
3135                                           SDVO_CMD_GET_MAX_OVERSCAN_V,
3136                                           &data_value, 4))
3137                         return false;
3138
3139                 if (!intel_sdvo_get_value(intel_sdvo,
3140                                           SDVO_CMD_GET_OVERSCAN_V,
3141                                           &response, 2))
3142                         return false;
3143
3144                 sdvo_state->tv.overscan_v = response;
3145
3146                 intel_sdvo_connector->max_vscan = data_value[0];
3147                 intel_sdvo_connector->top =
3148                         drm_property_create_range(dev, 0,
3149                                             "top_margin", 0, data_value[0]);
3150                 if (!intel_sdvo_connector->top)
3151                         return false;
3152
3153                 drm_object_attach_property(&connector->base,
3154                                            intel_sdvo_connector->top, 0);
3155
3156                 intel_sdvo_connector->bottom =
3157                         drm_property_create_range(dev, 0,
3158                                             "bottom_margin", 0, data_value[0]);
3159                 if (!intel_sdvo_connector->bottom)
3160                         return false;
3161
3162                 drm_object_attach_property(&connector->base,
3163                                               intel_sdvo_connector->bottom, 0);
3164                 DRM_DEBUG_KMS("v_overscan: max %d, "
3165                               "default %d, current %d\n",
3166                               data_value[0], data_value[1], response);
3167         }
3168
3169         ENHANCEMENT(&sdvo_state->tv, hpos, HPOS);
3170         ENHANCEMENT(&sdvo_state->tv, vpos, VPOS);
3171         ENHANCEMENT(&conn_state->tv, saturation, SATURATION);
3172         ENHANCEMENT(&conn_state->tv, contrast, CONTRAST);
3173         ENHANCEMENT(&conn_state->tv, hue, HUE);
3174         ENHANCEMENT(&conn_state->tv, brightness, BRIGHTNESS);
3175         ENHANCEMENT(&sdvo_state->tv, sharpness, SHARPNESS);
3176         ENHANCEMENT(&sdvo_state->tv, flicker_filter, FLICKER_FILTER);
3177         ENHANCEMENT(&sdvo_state->tv, flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
3178         ENHANCEMENT(&sdvo_state->tv, flicker_filter_2d, FLICKER_FILTER_2D);
3179         _ENHANCEMENT(sdvo_state->tv.chroma_filter, tv_chroma_filter, TV_CHROMA_FILTER);
3180         _ENHANCEMENT(sdvo_state->tv.luma_filter, tv_luma_filter, TV_LUMA_FILTER);
3181
3182         if (enhancements.dot_crawl) {
3183                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_DOT_CRAWL, &response, 2))
3184                         return false;
3185
3186                 sdvo_state->tv.dot_crawl = response & 0x1;
3187                 intel_sdvo_connector->dot_crawl =
3188                         drm_property_create_range(dev, 0, "dot_crawl", 0, 1);
3189                 if (!intel_sdvo_connector->dot_crawl)
3190                         return false;
3191
3192                 drm_object_attach_property(&connector->base,
3193                                            intel_sdvo_connector->dot_crawl, 0);
3194                 DRM_DEBUG_KMS("dot crawl: current %d\n", response);
3195         }
3196
3197         return true;
3198 }
3199
3200 static bool
3201 intel_sdvo_create_enhance_property_lvds(struct intel_sdvo *intel_sdvo,
3202                                         struct intel_sdvo_connector *intel_sdvo_connector,
3203                                         struct intel_sdvo_enhancements_reply enhancements)
3204 {
3205         struct drm_device *dev = intel_sdvo->base.base.dev;
3206         struct drm_connector *connector = &intel_sdvo_connector->base.base;
3207         u16 response, data_value[2];
3208
3209         ENHANCEMENT(&connector->state->tv, brightness, BRIGHTNESS);
3210
3211         return true;
3212 }
3213 #undef ENHANCEMENT
3214 #undef _ENHANCEMENT
3215
3216 static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
3217                                                struct intel_sdvo_connector *intel_sdvo_connector)
3218 {
3219         union {
3220                 struct intel_sdvo_enhancements_reply reply;
3221                 u16 response;
3222         } enhancements;
3223
3224         BUILD_BUG_ON(sizeof(enhancements) != 2);
3225
3226         if (!intel_sdvo_get_value(intel_sdvo,
3227                                   SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
3228                                   &enhancements, sizeof(enhancements)) ||
3229             enhancements.response == 0) {
3230                 DRM_DEBUG_KMS("No enhancement is supported\n");
3231                 return true;
3232         }
3233
3234         if (IS_TV(intel_sdvo_connector))
3235                 return intel_sdvo_create_enhance_property_tv(intel_sdvo, intel_sdvo_connector, enhancements.reply);
3236         else if (IS_LVDS(intel_sdvo_connector))
3237                 return intel_sdvo_create_enhance_property_lvds(intel_sdvo, intel_sdvo_connector, enhancements.reply);
3238         else
3239                 return true;
3240 }
3241
3242 static int intel_sdvo_ddc_proxy_xfer(struct i2c_adapter *adapter,
3243                                      struct i2c_msg *msgs,
3244                                      int num)
3245 {
3246         struct intel_sdvo *sdvo = adapter->algo_data;
3247
3248         if (!__intel_sdvo_set_control_bus_switch(sdvo, sdvo->ddc_bus))
3249                 return -EIO;
3250
3251         return sdvo->i2c->algo->master_xfer(sdvo->i2c, msgs, num);
3252 }
3253
3254 static u32 intel_sdvo_ddc_proxy_func(struct i2c_adapter *adapter)
3255 {
3256         struct intel_sdvo *sdvo = adapter->algo_data;
3257         return sdvo->i2c->algo->functionality(sdvo->i2c);
3258 }
3259
3260 static const struct i2c_algorithm intel_sdvo_ddc_proxy = {
3261         .master_xfer    = intel_sdvo_ddc_proxy_xfer,
3262         .functionality  = intel_sdvo_ddc_proxy_func
3263 };
3264
3265 static void proxy_lock_bus(struct i2c_adapter *adapter,
3266                            unsigned int flags)
3267 {
3268         struct intel_sdvo *sdvo = adapter->algo_data;
3269         sdvo->i2c->lock_ops->lock_bus(sdvo->i2c, flags);
3270 }
3271
3272 static int proxy_trylock_bus(struct i2c_adapter *adapter,
3273                              unsigned int flags)
3274 {
3275         struct intel_sdvo *sdvo = adapter->algo_data;
3276         return sdvo->i2c->lock_ops->trylock_bus(sdvo->i2c, flags);
3277 }
3278
3279 static void proxy_unlock_bus(struct i2c_adapter *adapter,
3280                              unsigned int flags)
3281 {
3282         struct intel_sdvo *sdvo = adapter->algo_data;
3283         sdvo->i2c->lock_ops->unlock_bus(sdvo->i2c, flags);
3284 }
3285
3286 static const struct i2c_lock_operations proxy_lock_ops = {
3287         .lock_bus =    proxy_lock_bus,
3288         .trylock_bus = proxy_trylock_bus,
3289         .unlock_bus =  proxy_unlock_bus,
3290 };
3291
3292 static bool
3293 intel_sdvo_init_ddc_proxy(struct intel_sdvo *sdvo,
3294                           struct drm_i915_private *dev_priv)
3295 {
3296         struct pci_dev *pdev = dev_priv->drm.pdev;
3297
3298         sdvo->ddc.owner = THIS_MODULE;
3299         sdvo->ddc.class = I2C_CLASS_DDC;
3300         snprintf(sdvo->ddc.name, I2C_NAME_SIZE, "SDVO DDC proxy");
3301         sdvo->ddc.dev.parent = &pdev->dev;
3302         sdvo->ddc.algo_data = sdvo;
3303         sdvo->ddc.algo = &intel_sdvo_ddc_proxy;
3304         sdvo->ddc.lock_ops = &proxy_lock_ops;
3305
3306         return i2c_add_adapter(&sdvo->ddc) == 0;
3307 }
3308
3309 static void assert_sdvo_port_valid(const struct drm_i915_private *dev_priv,
3310                                    enum port port)
3311 {
3312         if (HAS_PCH_SPLIT(dev_priv))
3313                 drm_WARN_ON(&dev_priv->drm, port != PORT_B);
3314         else
3315                 drm_WARN_ON(&dev_priv->drm, port != PORT_B && port != PORT_C);
3316 }
3317
3318 bool intel_sdvo_init(struct drm_i915_private *dev_priv,
3319                      i915_reg_t sdvo_reg, enum port port)
3320 {
3321         struct intel_encoder *intel_encoder;
3322         struct intel_sdvo *intel_sdvo;
3323         int i;
3324
3325         assert_sdvo_port_valid(dev_priv, port);
3326
3327         intel_sdvo = kzalloc(sizeof(*intel_sdvo), GFP_KERNEL);
3328         if (!intel_sdvo)
3329                 return false;
3330
3331         intel_sdvo->sdvo_reg = sdvo_reg;
3332         intel_sdvo->port = port;
3333         intel_sdvo->slave_addr =
3334                 intel_sdvo_get_slave_addr(dev_priv, intel_sdvo) >> 1;
3335         intel_sdvo_select_i2c_bus(dev_priv, intel_sdvo);
3336         if (!intel_sdvo_init_ddc_proxy(intel_sdvo, dev_priv))
3337                 goto err_i2c_bus;
3338
3339         /* encoder type will be decided later */
3340         intel_encoder = &intel_sdvo->base;
3341         intel_encoder->type = INTEL_OUTPUT_SDVO;
3342         intel_encoder->power_domain = POWER_DOMAIN_PORT_OTHER;
3343         intel_encoder->port = port;
3344         drm_encoder_init(&dev_priv->drm, &intel_encoder->base,
3345                          &intel_sdvo_enc_funcs, 0,
3346                          "SDVO %c", port_name(port));
3347
3348         /* Read the regs to test if we can talk to the device */
3349         for (i = 0; i < 0x40; i++) {
3350                 u8 byte;
3351
3352                 if (!intel_sdvo_read_byte(intel_sdvo, i, &byte)) {
3353                         drm_dbg_kms(&dev_priv->drm,
3354                                     "No SDVO device found on %s\n",
3355                                     SDVO_NAME(intel_sdvo));
3356                         goto err;
3357                 }
3358         }
3359
3360         intel_encoder->compute_config = intel_sdvo_compute_config;
3361         if (HAS_PCH_SPLIT(dev_priv)) {
3362                 intel_encoder->disable = pch_disable_sdvo;
3363                 intel_encoder->post_disable = pch_post_disable_sdvo;
3364         } else {
3365                 intel_encoder->disable = intel_disable_sdvo;
3366         }
3367         intel_encoder->pre_enable = intel_sdvo_pre_enable;
3368         intel_encoder->enable = intel_enable_sdvo;
3369         intel_encoder->get_hw_state = intel_sdvo_get_hw_state;
3370         intel_encoder->get_config = intel_sdvo_get_config;
3371
3372         /* In default case sdvo lvds is false */
3373         if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
3374                 goto err;
3375
3376         intel_sdvo->colorimetry_cap =
3377                 intel_sdvo_get_colorimetry_cap(intel_sdvo);
3378
3379         if (intel_sdvo_output_setup(intel_sdvo,
3380                                     intel_sdvo->caps.output_flags) != true) {
3381                 drm_dbg_kms(&dev_priv->drm,
3382                             "SDVO output failed to setup on %s\n",
3383                             SDVO_NAME(intel_sdvo));
3384                 /* Output_setup can leave behind connectors! */
3385                 goto err_output;
3386         }
3387
3388         /*
3389          * Only enable the hotplug irq if we need it, to work around noisy
3390          * hotplug lines.
3391          */
3392         if (intel_sdvo->hotplug_active) {
3393                 if (intel_sdvo->port == PORT_B)
3394                         intel_encoder->hpd_pin = HPD_SDVO_B;
3395                 else
3396                         intel_encoder->hpd_pin = HPD_SDVO_C;
3397         }
3398
3399         /*
3400          * Cloning SDVO with anything is often impossible, since the SDVO
3401          * encoder can request a special input timing mode. And even if that's
3402          * not the case we have evidence that cloning a plain unscaled mode with
3403          * VGA doesn't really work. Furthermore the cloning flags are way too
3404          * simplistic anyway to express such constraints, so just give up on
3405          * cloning for SDVO encoders.
3406          */
3407         intel_sdvo->base.cloneable = 0;
3408
3409         /* Set the input timing to the screen. Assume always input 0. */
3410         if (!intel_sdvo_set_target_input(intel_sdvo))
3411                 goto err_output;
3412
3413         if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
3414                                                     &intel_sdvo->pixel_clock_min,
3415                                                     &intel_sdvo->pixel_clock_max))
3416                 goto err_output;
3417
3418         drm_dbg_kms(&dev_priv->drm, "%s device VID/DID: %02X:%02X.%02X, "
3419                         "clock range %dMHz - %dMHz, "
3420                         "input 1: %c, input 2: %c, "
3421                         "output 1: %c, output 2: %c\n",
3422                         SDVO_NAME(intel_sdvo),
3423                         intel_sdvo->caps.vendor_id, intel_sdvo->caps.device_id,
3424                         intel_sdvo->caps.device_rev_id,
3425                         intel_sdvo->pixel_clock_min / 1000,
3426                         intel_sdvo->pixel_clock_max / 1000,
3427                         (intel_sdvo->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
3428                         (intel_sdvo->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
3429                         /* check currently supported outputs */
3430                         intel_sdvo->caps.output_flags &
3431                         (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
3432                         intel_sdvo->caps.output_flags &
3433                         (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
3434         return true;
3435
3436 err_output:
3437         intel_sdvo_output_cleanup(intel_sdvo);
3438
3439 err:
3440         drm_encoder_cleanup(&intel_encoder->base);
3441         i2c_del_adapter(&intel_sdvo->ddc);
3442 err_i2c_bus:
3443         intel_sdvo_unselect_i2c_bus(intel_sdvo);
3444         kfree(intel_sdvo);
3445
3446         return false;
3447 }