drivers/gpu/drm/i915/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 #include <linux/i2c.h>
  29 #include <linux/slab.h>
  30 #include <linux/delay.h>
  31 #include "drmP.h"
  32 #include "drm.h"
  33 #include "drm_crtc.h"
  34 #include "drm_edid.h"
  35 #include "intel_drv.h"
  36 #include "i915_drm.h"
  37 #include "i915_drv.h"
  38 #include "intel_sdvo_regs.h"
  39
  40 #define SDVO_TMDS_MASK (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)
  41 #define SDVO_RGB_MASK  (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1)
  42 #define SDVO_LVDS_MASK (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1)
  43 #define SDVO_TV_MASK   (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_SVID0)
  44
  45 #define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK |\
  46                          SDVO_TV_MASK)
  47
  48 #define IS_TV(c)        (c->output_flag & SDVO_TV_MASK)
  49 #define IS_LVDS(c)      (c->output_flag & SDVO_LVDS_MASK)
  50 #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
  51
  52
  53 static const char *tv_format_names[] = {
  54         "NTSC_M"   , "NTSC_J"  , "NTSC_443",
  55         "PAL_B"    , "PAL_D"   , "PAL_G"   ,
  56         "PAL_H"    , "PAL_I"   , "PAL_M"   ,
  57         "PAL_N"    , "PAL_NC"  , "PAL_60"  ,
  58         "SECAM_B"  , "SECAM_D" , "SECAM_G" ,
  59         "SECAM_K"  , "SECAM_K1", "SECAM_L" ,
  60         "SECAM_60"
  61 };
  62
  63 #define TV_FORMAT_NUM  (sizeof(tv_format_names) / sizeof(*tv_format_names))
  64
  65 struct intel_sdvo {
  66         struct intel_encoder base;
  67
  68         u8 slave_addr;
  69
  70         /* Register for the SDVO device: SDVOB or SDVOC */
  71         int sdvo_reg;
  72
  73         /* Active outputs controlled by this SDVO output */
  74         uint16_t controlled_output;
  75
  76         /*
  77          * Capabilities of the SDVO device returned by
  78          * i830_sdvo_get_capabilities()
  79          */
  80         struct intel_sdvo_caps caps;
  81
  82         /* Pixel clock limitations reported by the SDVO device, in kHz */
  83         int pixel_clock_min, pixel_clock_max;
  84
  85         /*
  86         * For multiple function SDVO device,
  87         * this is for current attached outputs.
  88         */
  89         uint16_t attached_output;
  90
  91         /**
  92          * This is set if we're going to treat the device as TV-out.
  93          *
  94          * While we have these nice friendly flags for output types that ought
  95          * to decide this for us, the S-Video output on our HDMI+S-Video card
  96          * shows up as RGB1 (VGA).
  97          */
  98         bool is_tv;
  99
 100         /* This is for current tv format name */
 101         int tv_format_index;
 102
 103         /**
 104          * This is set if we treat the device as HDMI, instead of DVI.
 105          */
 106         bool is_hdmi;
 107
 108         /**
 109          * This is set if we detect output of sdvo device as LVDS.
 110          */
 111         bool is_lvds;
 112
 113         /**
 114          * This is sdvo flags for input timing.
 115          */
 116         uint8_t sdvo_flags;
 117
 118         /**
 119          * This is sdvo fixed pannel mode pointer
 120          */
 121         struct drm_display_mode *sdvo_lvds_fixed_mode;
 122
 123         /*
 124          * supported encoding mode, used to determine whether HDMI is
 125          * supported
 126          */
 127         struct intel_sdvo_encode encode;
 128
 129         /* DDC bus used by this SDVO encoder */
 130         uint8_t ddc_bus;
 131
 132         /* Mac mini hack -- use the same DDC as the analog connector */
 133         struct i2c_adapter *analog_ddc_bus;
 134
 135 };
 136
 137 struct intel_sdvo_connector {
 138         struct intel_connector base;
 139
 140         /* Mark the type of connector */
 141         uint16_t output_flag;
 142
 143         /* This contains all current supported TV format */
 144         u8 tv_format_supported[TV_FORMAT_NUM];
 145         int   format_supported_num;
 146         struct drm_property *tv_format;
 147
 148         /* add the property for the SDVO-TV */
 149         struct drm_property *left;
 150         struct drm_property *right;
 151         struct drm_property *top;
 152         struct drm_property *bottom;
 153         struct drm_property *hpos;
 154         struct drm_property *vpos;
 155         struct drm_property *contrast;
 156         struct drm_property *saturation;
 157         struct drm_property *hue;
 158         struct drm_property *sharpness;
 159         struct drm_property *flicker_filter;
 160         struct drm_property *flicker_filter_adaptive;
 161         struct drm_property *flicker_filter_2d;
 162         struct drm_property *tv_chroma_filter;
 163         struct drm_property *tv_luma_filter;
 164         struct drm_property *dot_crawl;
 165
 166         /* add the property for the SDVO-TV/LVDS */
 167         struct drm_property *brightness;
 168
 169         /* Add variable to record current setting for the above property */
 170         u32     left_margin, right_margin, top_margin, bottom_margin;
 171
 172         /* this is to get the range of margin.*/
 173         u32     max_hscan,  max_vscan;
 174         u32     max_hpos, cur_hpos;
 175         u32     max_vpos, cur_vpos;
 176         u32     cur_brightness, max_brightness;
 177         u32     cur_contrast,   max_contrast;
 178         u32     cur_saturation, max_saturation;
 179         u32     cur_hue,        max_hue;
 180         u32     cur_sharpness,  max_sharpness;
 181         u32     cur_flicker_filter,             max_flicker_filter;
 182         u32     cur_flicker_filter_adaptive,    max_flicker_filter_adaptive;
 183         u32     cur_flicker_filter_2d,          max_flicker_filter_2d;
 184         u32     cur_tv_chroma_filter,   max_tv_chroma_filter;
 185         u32     cur_tv_luma_filter,     max_tv_luma_filter;
 186         u32     cur_dot_crawl,  max_dot_crawl;
 187 };
 188
 189 static struct intel_sdvo *enc_to_intel_sdvo(struct drm_encoder *encoder)
 190 {
 191         return container_of(enc_to_intel_encoder(encoder), struct intel_sdvo, base);
 192 }
 193
 194 static struct intel_sdvo_connector *to_intel_sdvo_connector(struct drm_connector *connector)
 195 {
 196         return container_of(to_intel_connector(connector), struct intel_sdvo_connector, base);
 197 }
 198
 199 static bool
 200 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags);
 201 static bool
 202 intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
 203                               struct intel_sdvo_connector *intel_sdvo_connector,
 204                               int type);
 205 static bool
 206 intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
 207                                    struct intel_sdvo_connector *intel_sdvo_connector);
 208
 209 /**
 210  * Writes the SDVOB or SDVOC with the given value, but always writes both
 211  * SDVOB and SDVOC to work around apparent hardware issues (according to
 212  * comments in the BIOS).
 213  */
 214 static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val)
 215 {
 216         struct drm_device *dev = intel_sdvo->base.enc.dev;
 217         struct drm_i915_private *dev_priv = dev->dev_private;
 218         u32 bval = val, cval = val;
 219         int i;
 220
 221         if (intel_sdvo->sdvo_reg == PCH_SDVOB) {
 222                 I915_WRITE(intel_sdvo->sdvo_reg, val);
 223                 I915_READ(intel_sdvo->sdvo_reg);
 224                 return;
 225         }
 226
 227         if (intel_sdvo->sdvo_reg == SDVOB) {
 228                 cval = I915_READ(SDVOC);
 229         } else {
 230                 bval = I915_READ(SDVOB);
 231         }
 232         /*
 233          * Write the registers twice for luck. Sometimes,
 234          * writing them only once doesn't appear to 'stick'.
 235          * The BIOS does this too. Yay, magic
 236          */
 237         for (i = 0; i < 2; i++)
 238         {
 239                 I915_WRITE(SDVOB, bval);
 240                 I915_READ(SDVOB);
 241                 I915_WRITE(SDVOC, cval);
 242                 I915_READ(SDVOC);
 243         }
 244 }
 245
 246 static bool intel_sdvo_read_byte(struct intel_sdvo *intel_sdvo, u8 addr, u8 *ch)
 247 {
 248         u8 out_buf[2] = { addr, 0 };
 249         u8 buf[2];
 250         struct i2c_msg msgs[] = {
 251                 {
 252                         .addr = intel_sdvo->slave_addr >> 1,
 253                         .flags = 0,
 254                         .len = 1,
 255                         .buf = out_buf,
 256                 },
 257                 {
 258                         .addr = intel_sdvo->slave_addr >> 1,
 259                         .flags = I2C_M_RD,
 260                         .len = 1,
 261                         .buf = buf,
 262                 }
 263         };
 264         int ret;
 265
 266         if ((ret = i2c_transfer(intel_sdvo->base.i2c_bus, msgs, 2)) == 2)
 267         {
 268                 *ch = buf[0];
 269                 return true;
 270         }
 271
 272         DRM_DEBUG_KMS("i2c transfer returned %d\n", ret);
 273         return false;
 274 }
 275
 276 static bool intel_sdvo_write_byte(struct intel_sdvo *intel_sdvo, int addr, u8 ch)
 277 {
 278         u8 out_buf[2] = { addr, ch };
 279         struct i2c_msg msgs[] = {
 280                 {
 281                         .addr = intel_sdvo->slave_addr >> 1,
 282                         .flags = 0,
 283                         .len = 2,
 284                         .buf = out_buf,
 285                 }
 286         };
 287
 288         return i2c_transfer(intel_sdvo->base.i2c_bus, msgs, 1) == 1;
 289 }
 290
 291 #define SDVO_CMD_NAME_ENTRY(cmd) {cmd, #cmd}
 292 /** Mapping of command numbers to names, for debug output */
 293 static const struct _sdvo_cmd_name {
 294         u8 cmd;
 295         const char *name;
 296 } sdvo_cmd_names[] = {
 297     SDVO_CMD_NAME_ENTRY(SDVO_CMD_RESET),
 298     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DEVICE_CAPS),
 299     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FIRMWARE_REV),
 300     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TRAINED_INPUTS),
 301     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_OUTPUTS),
 302     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_OUTPUTS),
 303     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_IN_OUT_MAP),
 304     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_IN_OUT_MAP),
 305     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ATTACHED_DISPLAYS),
 306     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HOT_PLUG_SUPPORT),
 307     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_HOT_PLUG),
 308     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_HOT_PLUG),
 309     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INTERRUPT_EVENT_SOURCE),
 310     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_INPUT),
 311     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_OUTPUT),
 312     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART1),
 313     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART2),
 314     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 315     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART2),
 316     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 317     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART1),
 318     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART2),
 319     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART1),
 320     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART2),
 321     SDVO_CMD_NAME_ENTRY(SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING),
 322     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1),
 323     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2),
 324     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE),
 325     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_PIXEL_CLOCK_RANGE),
 326     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_CLOCK_RATE_MULTS),
 327     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CLOCK_RATE_MULT),
 328     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CLOCK_RATE_MULT),
 329     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_TV_FORMATS),
 330     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_FORMAT),
 331     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_FORMAT),
 332     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_POWER_STATES),
 333     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_POWER_STATE),
 334     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODER_POWER_STATE),
 335     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DISPLAY_POWER_STATE),
 336     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTROL_BUS_SWITCH),
 337     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT),
 338     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SCALED_HDTV_RESOLUTION_SUPPORT),
 339     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS),
 340
 341     /* Add the op code for SDVO enhancements */
 342     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HPOS),
 343     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HPOS),
 344     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HPOS),
 345     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_VPOS),
 346     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_VPOS),
 347     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_VPOS),
 348     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SATURATION),
 349     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SATURATION),
 350     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SATURATION),
 351     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HUE),
 352     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HUE),
 353     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HUE),
 354     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_CONTRAST),
 355     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CONTRAST),
 356     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTRAST),
 357     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_BRIGHTNESS),
 358     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_BRIGHTNESS),
 359     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_BRIGHTNESS),
 360     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_H),
 361     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_H),
 362     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_H),
 363     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_V),
 364     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_V),
 365     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_V),
 366     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER),
 367     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER),
 368     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER),
 369     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_ADAPTIVE),
 370     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_ADAPTIVE),
 371     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_ADAPTIVE),
 372     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_2D),
 373     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_2D),
 374     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_2D),
 375     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SHARPNESS),
 376     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SHARPNESS),
 377     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SHARPNESS),
 378     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DOT_CRAWL),
 379     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DOT_CRAWL),
 380     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_CHROMA_FILTER),
 381     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_CHROMA_FILTER),
 382     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_CHROMA_FILTER),
 383     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_LUMA_FILTER),
 384     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_LUMA_FILTER),
 385     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_LUMA_FILTER),
 386
 387     /* HDMI op code */
 388     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPP_ENCODE),
 389     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ENCODE),
 390     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODE),
 391     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_PIXEL_REPLI),
 392     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PIXEL_REPLI),
 393     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY_CAP),
 394     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_COLORIMETRY),
 395     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY),
 396     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_ENCRYPT_PREFER),
 397     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_AUDIO_STAT),
 398     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_STAT),
 399     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INDEX),
 400     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_INDEX),
 401     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INFO),
 402     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_AV_SPLIT),
 403     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_AV_SPLIT),
 404     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_TXRATE),
 405     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_TXRATE),
 406     SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_DATA),
 407     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_DATA),
 408 };
 409
 410 #define IS_SDVOB(reg)   (reg == SDVOB || reg == PCH_SDVOB)
 411 #define SDVO_NAME(svdo) (IS_SDVOB((svdo)->sdvo_reg) ? "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         int i;
 417
 418         DRM_DEBUG_KMS("%s: W: %02X ",
 419                                 SDVO_NAME(intel_sdvo), cmd);
 420         for (i = 0; i < args_len; i++)
 421                 DRM_LOG_KMS("%02X ", ((u8 *)args)[i]);
 422         for (; i < 8; i++)
 423                 DRM_LOG_KMS("   ");
 424         for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) {
 425                 if (cmd == sdvo_cmd_names[i].cmd) {
 426                         DRM_LOG_KMS("(%s)", sdvo_cmd_names[i].name);
 427                         break;
 428                 }
 429         }
 430         if (i == ARRAY_SIZE(sdvo_cmd_names))
 431                 DRM_LOG_KMS("(%02X)", cmd);
 432         DRM_LOG_KMS("\n");
 433 }
 434
 435 static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
 436                                  const void *args, int args_len)
 437 {
 438         int i;
 439
 440         intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
 441
 442         for (i = 0; i < args_len; i++) {
 443                 if (!intel_sdvo_write_byte(intel_sdvo, SDVO_I2C_ARG_0 - i,
 444                                            ((u8*)args)[i]))
 445                         return false;
 446         }
 447
 448         return intel_sdvo_write_byte(intel_sdvo, SDVO_I2C_OPCODE, cmd);
 449 }
 450
 451 static const char *cmd_status_names[] = {
 452         "Power on",
 453         "Success",
 454         "Not supported",
 455         "Invalid arg",
 456         "Pending",
 457         "Target not specified",
 458         "Scaling not supported"
 459 };
 460
 461 static void intel_sdvo_debug_response(struct intel_sdvo *intel_sdvo,
 462                                       void *response, int response_len,
 463                                       u8 status)
 464 {
 465         int i;
 466
 467         DRM_DEBUG_KMS("%s: R: ", SDVO_NAME(intel_sdvo));
 468         for (i = 0; i < response_len; i++)
 469                 DRM_LOG_KMS("%02X ", ((u8 *)response)[i]);
 470         for (; i < 8; i++)
 471                 DRM_LOG_KMS("   ");
 472         if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
 473                 DRM_LOG_KMS("(%s)", cmd_status_names[status]);
 474         else
 475                 DRM_LOG_KMS("(??? %d)", status);
 476         DRM_LOG_KMS("\n");
 477 }
 478
 479 static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
 480                                      void *response, int response_len)
 481 {
 482         int i;
 483         u8 status;
 484         u8 retry = 50;
 485
 486         while (retry--) {
 487                 /* Read the command response */
 488                 for (i = 0; i < response_len; i++) {
 489                         if (!intel_sdvo_read_byte(intel_sdvo,
 490                                                   SDVO_I2C_RETURN_0 + i,
 491                                                   &((u8 *)response)[i]))
 492                                 return false;
 493                 }
 494
 495                 /* read the return status */
 496                 if (!intel_sdvo_read_byte(intel_sdvo, SDVO_I2C_CMD_STATUS,
 497                                           &status))
 498                         return false;
 499
 500                 intel_sdvo_debug_response(intel_sdvo, response, response_len,
 501                                           status);
 502                 if (status != SDVO_CMD_STATUS_PENDING)
 503                         break;
 504
 505                 mdelay(50);
 506         }
 507
 508         return status == SDVO_CMD_STATUS_SUCCESS;
 509 }
 510
 511 static int intel_sdvo_get_pixel_multiplier(struct drm_display_mode *mode)
 512 {
 513         if (mode->clock >= 100000)
 514                 return 1;
 515         else if (mode->clock >= 50000)
 516                 return 2;
 517         else
 518                 return 4;
 519 }
 520
 521 /**
 522  * Try to read the response after issuie the DDC switch command. But it
 523  * is noted that we must do the action of reading response and issuing DDC
 524  * switch command in one I2C transaction. Otherwise when we try to start
 525  * another I2C transaction after issuing the DDC bus switch, it will be
 526  * switched to the internal SDVO register.
 527  */
 528 static void intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo,
 529                                               u8 target)
 530 {
 531         u8 out_buf[2], cmd_buf[2], ret_value[2], ret;
 532         struct i2c_msg msgs[] = {
 533                 {
 534                         .addr = intel_sdvo->slave_addr >> 1,
 535                         .flags = 0,
 536                         .len = 2,
 537                         .buf = out_buf,
 538                 },
 539                 /* the following two are to read the response */
 540                 {
 541                         .addr = intel_sdvo->slave_addr >> 1,
 542                         .flags = 0,
 543                         .len = 1,
 544                         .buf = cmd_buf,
 545                 },
 546                 {
 547                         .addr = intel_sdvo->slave_addr >> 1,
 548                         .flags = I2C_M_RD,
 549                         .len = 1,
 550                         .buf = ret_value,
 551                 },
 552         };
 553
 554         intel_sdvo_debug_write(intel_sdvo, SDVO_CMD_SET_CONTROL_BUS_SWITCH,
 555                                         &target, 1);
 556         /* write the DDC switch command argument */
 557         intel_sdvo_write_byte(intel_sdvo, SDVO_I2C_ARG_0, target);
 558
 559         out_buf[0] = SDVO_I2C_OPCODE;
 560         out_buf[1] = SDVO_CMD_SET_CONTROL_BUS_SWITCH;
 561         cmd_buf[0] = SDVO_I2C_CMD_STATUS;
 562         cmd_buf[1] = 0;
 563         ret_value[0] = 0;
 564         ret_value[1] = 0;
 565
 566         ret = i2c_transfer(intel_sdvo->base.i2c_bus, msgs, 3);
 567         if (ret != 3) {
 568                 /* failure in I2C transfer */
 569                 DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
 570                 return;
 571         }
 572         if (ret_value[0] != SDVO_CMD_STATUS_SUCCESS) {
 573                 DRM_DEBUG_KMS("DDC switch command returns response %d\n",
 574                                         ret_value[0]);
 575                 return;
 576         }
 577         return;
 578 }
 579
 580 static bool intel_sdvo_set_value(struct intel_sdvo *intel_sdvo, u8 cmd, const void *data, int len)
 581 {
 582         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, data, len))
 583                 return false;
 584
 585         return intel_sdvo_read_response(intel_sdvo, NULL, 0);
 586 }
 587
 588 static bool
 589 intel_sdvo_get_value(struct intel_sdvo *intel_sdvo, u8 cmd, void *value, int len)
 590 {
 591         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, NULL, 0))
 592                 return false;
 593
 594         return intel_sdvo_read_response(intel_sdvo, value, len);
 595 }
 596
 597 static bool intel_sdvo_set_target_input(struct intel_sdvo *intel_sdvo)
 598 {
 599         struct intel_sdvo_set_target_input_args targets = {0};
 600         return intel_sdvo_set_value(intel_sdvo,
 601                                     SDVO_CMD_SET_TARGET_INPUT,
 602                                     &targets, sizeof(targets));
 603 }
 604
 605 /**
 606  * Return whether each input is trained.
 607  *
 608  * This function is making an assumption about the layout of the response,
 609  * which should be checked against the docs.
 610  */
 611 static bool intel_sdvo_get_trained_inputs(struct intel_sdvo *intel_sdvo, bool *input_1, bool *input_2)
 612 {
 613         struct intel_sdvo_get_trained_inputs_response response;
 614
 615         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_TRAINED_INPUTS,
 616                                   &response, sizeof(response)))
 617                 return false;
 618
 619         *input_1 = response.input0_trained;
 620         *input_2 = response.input1_trained;
 621         return true;
 622 }
 623
 624 static bool intel_sdvo_set_active_outputs(struct intel_sdvo *intel_sdvo,
 625                                           u16 outputs)
 626 {
 627         return intel_sdvo_set_value(intel_sdvo,
 628                                     SDVO_CMD_SET_ACTIVE_OUTPUTS,
 629                                     &outputs, sizeof(outputs));
 630 }
 631
 632 static bool intel_sdvo_set_encoder_power_state(struct intel_sdvo *intel_sdvo,
 633                                                int mode)
 634 {
 635         u8 state = SDVO_ENCODER_STATE_ON;
 636
 637         switch (mode) {
 638         case DRM_MODE_DPMS_ON:
 639                 state = SDVO_ENCODER_STATE_ON;
 640                 break;
 641         case DRM_MODE_DPMS_STANDBY:
 642                 state = SDVO_ENCODER_STATE_STANDBY;
 643                 break;
 644         case DRM_MODE_DPMS_SUSPEND:
 645                 state = SDVO_ENCODER_STATE_SUSPEND;
 646                 break;
 647         case DRM_MODE_DPMS_OFF:
 648                 state = SDVO_ENCODER_STATE_OFF;
 649                 break;
 650         }
 651
 652         return intel_sdvo_set_value(intel_sdvo,
 653                                     SDVO_CMD_SET_ENCODER_POWER_STATE, &state, sizeof(state));
 654 }
 655
 656 static bool intel_sdvo_get_input_pixel_clock_range(struct intel_sdvo *intel_sdvo,
 657                                                    int *clock_min,
 658                                                    int *clock_max)
 659 {
 660         struct intel_sdvo_pixel_clock_range clocks;
 661
 662         if (!intel_sdvo_get_value(intel_sdvo,
 663                                   SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
 664                                   &clocks, sizeof(clocks)))
 665                 return false;
 666
 667         /* Convert the values from units of 10 kHz to kHz. */
 668         *clock_min = clocks.min * 10;
 669         *clock_max = clocks.max * 10;
 670         return true;
 671 }
 672
 673 static bool intel_sdvo_set_target_output(struct intel_sdvo *intel_sdvo,
 674                                          u16 outputs)
 675 {
 676         return intel_sdvo_set_value(intel_sdvo,
 677                                     SDVO_CMD_SET_TARGET_OUTPUT,
 678                                     &outputs, sizeof(outputs));
 679 }
 680
 681 static bool intel_sdvo_set_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 682                                   struct intel_sdvo_dtd *dtd)
 683 {
 684         return intel_sdvo_set_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 685                 intel_sdvo_set_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 686 }
 687
 688 static bool intel_sdvo_set_input_timing(struct intel_sdvo *intel_sdvo,
 689                                          struct intel_sdvo_dtd *dtd)
 690 {
 691         return intel_sdvo_set_timing(intel_sdvo,
 692                                      SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd);
 693 }
 694
 695 static bool intel_sdvo_set_output_timing(struct intel_sdvo *intel_sdvo,
 696                                          struct intel_sdvo_dtd *dtd)
 697 {
 698         return intel_sdvo_set_timing(intel_sdvo,
 699                                      SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd);
 700 }
 701
 702 static bool
 703 intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 704                                          uint16_t clock,
 705                                          uint16_t width,
 706                                          uint16_t height)
 707 {
 708         struct intel_sdvo_preferred_input_timing_args args;
 709
 710         memset(&args, 0, sizeof(args));
 711         args.clock = clock;
 712         args.width = width;
 713         args.height = height;
 714         args.interlace = 0;
 715
 716         if (intel_sdvo->is_lvds &&
 717            (intel_sdvo->sdvo_lvds_fixed_mode->hdisplay != width ||
 718             intel_sdvo->sdvo_lvds_fixed_mode->vdisplay != height))
 719                 args.scaled = 1;
 720
 721         return intel_sdvo_set_value(intel_sdvo,
 722                                     SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
 723                                     &args, sizeof(args));
 724 }
 725
 726 static bool intel_sdvo_get_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 727                                                   struct intel_sdvo_dtd *dtd)
 728 {
 729         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
 730                                     &dtd->part1, sizeof(dtd->part1)) &&
 731                 intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
 732                                      &dtd->part2, sizeof(dtd->part2));
 733 }
 734
 735 static bool intel_sdvo_set_clock_rate_mult(struct intel_sdvo *intel_sdvo, u8 val)
 736 {
 737         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
 738 }
 739
 740 static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
 741                                          const struct drm_display_mode *mode)
 742 {
 743         uint16_t width, height;
 744         uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len;
 745         uint16_t h_sync_offset, v_sync_offset;
 746
 747         width = mode->crtc_hdisplay;
 748         height = mode->crtc_vdisplay;
 749
 750         /* do some mode translations */
 751         h_blank_len = mode->crtc_hblank_end - mode->crtc_hblank_start;
 752         h_sync_len = mode->crtc_hsync_end - mode->crtc_hsync_start;
 753
 754         v_blank_len = mode->crtc_vblank_end - mode->crtc_vblank_start;
 755         v_sync_len = mode->crtc_vsync_end - mode->crtc_vsync_start;
 756
 757         h_sync_offset = mode->crtc_hsync_start - mode->crtc_hblank_start;
 758         v_sync_offset = mode->crtc_vsync_start - mode->crtc_vblank_start;
 759
 760         dtd->part1.clock = mode->clock / 10;
 761         dtd->part1.h_active = width & 0xff;
 762         dtd->part1.h_blank = h_blank_len & 0xff;
 763         dtd->part1.h_high = (((width >> 8) & 0xf) << 4) |
 764                 ((h_blank_len >> 8) & 0xf);
 765         dtd->part1.v_active = height & 0xff;
 766         dtd->part1.v_blank = v_blank_len & 0xff;
 767         dtd->part1.v_high = (((height >> 8) & 0xf) << 4) |
 768                 ((v_blank_len >> 8) & 0xf);
 769
 770         dtd->part2.h_sync_off = h_sync_offset & 0xff;
 771         dtd->part2.h_sync_width = h_sync_len & 0xff;
 772         dtd->part2.v_sync_off_width = (v_sync_offset & 0xf) << 4 |
 773                 (v_sync_len & 0xf);
 774         dtd->part2.sync_off_width_high = ((h_sync_offset & 0x300) >> 2) |
 775                 ((h_sync_len & 0x300) >> 4) | ((v_sync_offset & 0x30) >> 2) |
 776                 ((v_sync_len & 0x30) >> 4);
 777
 778         dtd->part2.dtd_flags = 0x18;
 779         if (mode->flags & DRM_MODE_FLAG_PHSYNC)
 780                 dtd->part2.dtd_flags |= 0x2;
 781         if (mode->flags & DRM_MODE_FLAG_PVSYNC)
 782                 dtd->part2.dtd_flags |= 0x4;
 783
 784         dtd->part2.sdvo_flags = 0;
 785         dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
 786         dtd->part2.reserved = 0;
 787 }
 788
 789 static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode,
 790                                          const struct intel_sdvo_dtd *dtd)
 791 {
 792         mode->hdisplay = dtd->part1.h_active;
 793         mode->hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
 794         mode->hsync_start = mode->hdisplay + dtd->part2.h_sync_off;
 795         mode->hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
 796         mode->hsync_end = mode->hsync_start + dtd->part2.h_sync_width;
 797         mode->hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
 798         mode->htotal = mode->hdisplay + dtd->part1.h_blank;
 799         mode->htotal += (dtd->part1.h_high & 0xf) << 8;
 800
 801         mode->vdisplay = dtd->part1.v_active;
 802         mode->vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
 803         mode->vsync_start = mode->vdisplay;
 804         mode->vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
 805         mode->vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
 806         mode->vsync_start += dtd->part2.v_sync_off_high & 0xc0;
 807         mode->vsync_end = mode->vsync_start +
 808                 (dtd->part2.v_sync_off_width & 0xf);
 809         mode->vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
 810         mode->vtotal = mode->vdisplay + dtd->part1.v_blank;
 811         mode->vtotal += (dtd->part1.v_high & 0xf) << 8;
 812
 813         mode->clock = dtd->part1.clock * 10;
 814
 815         mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
 816         if (dtd->part2.dtd_flags & 0x2)
 817                 mode->flags |= DRM_MODE_FLAG_PHSYNC;
 818         if (dtd->part2.dtd_flags & 0x4)
 819                 mode->flags |= DRM_MODE_FLAG_PVSYNC;
 820 }
 821
 822 static bool intel_sdvo_get_supp_encode(struct intel_sdvo *intel_sdvo,
 823                                        struct intel_sdvo_encode *encode)
 824 {
 825         if (intel_sdvo_get_value(intel_sdvo,
 826                                   SDVO_CMD_GET_SUPP_ENCODE,
 827                                   encode, sizeof(*encode)))
 828                 return true;
 829
 830         /* non-support means DVI */
 831         memset(encode, 0, sizeof(*encode));
 832         return false;
 833 }
 834
 835 static bool intel_sdvo_set_encode(struct intel_sdvo *intel_sdvo,
 836                                   uint8_t mode)
 837 {
 838         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_ENCODE, &mode, 1);
 839 }
 840
 841 static bool intel_sdvo_set_colorimetry(struct intel_sdvo *intel_sdvo,
 842                                        uint8_t mode)
 843 {
 844         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
 845 }
 846
 847 #if 0
 848 static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
 849 {
 850         int i, j;
 851         uint8_t set_buf_index[2];
 852         uint8_t av_split;
 853         uint8_t buf_size;
 854         uint8_t buf[48];
 855         uint8_t *pos;
 856
 857         intel_sdvo_get_value(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, &av_split, 1);
 858
 859         for (i = 0; i <= av_split; i++) {
 860                 set_buf_index[0] = i; set_buf_index[1] = 0;
 861                 intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX,
 862                                      set_buf_index, 2);
 863                 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
 864                 intel_sdvo_read_response(encoder, &buf_size, 1);
 865
 866                 pos = buf;
 867                 for (j = 0; j <= buf_size; j += 8) {
 868                         intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA,
 869                                              NULL, 0);
 870                         intel_sdvo_read_response(encoder, pos, 8);
 871                         pos += 8;
 872                 }
 873         }
 874 }
 875 #endif
 876
 877 static bool intel_sdvo_set_hdmi_buf(struct intel_sdvo *intel_sdvo,
 878                                     int index,
 879                                     uint8_t *data, int8_t size, uint8_t tx_rate)
 880 {
 881     uint8_t set_buf_index[2];
 882
 883     set_buf_index[0] = index;
 884     set_buf_index[1] = 0;
 885
 886     if (!intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_HBUF_INDEX,
 887                               set_buf_index, 2))
 888             return false;
 889
 890     for (; size > 0; size -= 8) {
 891         if (!intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_HBUF_DATA, data, 8))
 892                 return false;
 893
 894         data += 8;
 895     }
 896
 897     return intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_HBUF_TXRATE, &tx_rate, 1);
 898 }
 899
 900 static uint8_t intel_sdvo_calc_hbuf_csum(uint8_t *data, uint8_t size)
 901 {
 902         uint8_t csum = 0;
 903         int i;
 904
 905         for (i = 0; i < size; i++)
 906                 csum += data[i];
 907
 908         return 0x100 - csum;
 909 }
 910
 911 #define DIP_TYPE_AVI    0x82
 912 #define DIP_VERSION_AVI 0x2
 913 #define DIP_LEN_AVI     13
 914
 915 struct dip_infoframe {
 916         uint8_t type;
 917         uint8_t version;
 918         uint8_t len;
 919         uint8_t checksum;
 920         union {
 921                 struct {
 922                         /* Packet Byte #1 */
 923                         uint8_t S:2;
 924                         uint8_t B:2;
 925                         uint8_t A:1;
 926                         uint8_t Y:2;
 927                         uint8_t rsvd1:1;
 928                         /* Packet Byte #2 */
 929                         uint8_t R:4;
 930                         uint8_t M:2;
 931                         uint8_t C:2;
 932                         /* Packet Byte #3 */
 933                         uint8_t SC:2;
 934                         uint8_t Q:2;
 935                         uint8_t EC:3;
 936                         uint8_t ITC:1;
 937                         /* Packet Byte #4 */
 938                         uint8_t VIC:7;
 939                         uint8_t rsvd2:1;
 940                         /* Packet Byte #5 */
 941                         uint8_t PR:4;
 942                         uint8_t rsvd3:4;
 943                         /* Packet Byte #6~13 */
 944                         uint16_t top_bar_end;
 945                         uint16_t bottom_bar_start;
 946                         uint16_t left_bar_end;
 947                         uint16_t right_bar_start;
 948                 } avi;
 949                 struct {
 950                         /* Packet Byte #1 */
 951                         uint8_t channel_count:3;
 952                         uint8_t rsvd1:1;
 953                         uint8_t coding_type:4;
 954                         /* Packet Byte #2 */
 955                         uint8_t sample_size:2; /* SS0, SS1 */
 956                         uint8_t sample_frequency:3;
 957                         uint8_t rsvd2:3;
 958                         /* Packet Byte #3 */
 959                         uint8_t coding_type_private:5;
 960                         uint8_t rsvd3:3;
 961                         /* Packet Byte #4 */
 962                         uint8_t channel_allocation;
 963                         /* Packet Byte #5 */
 964                         uint8_t rsvd4:3;
 965                         uint8_t level_shift:4;
 966                         uint8_t downmix_inhibit:1;
 967                 } audio;
 968                 uint8_t payload[28];
 969         } __attribute__ ((packed)) u;
 970 } __attribute__((packed));
 971
 972 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
 973                                          struct drm_display_mode * mode)
 974 {
 975         struct dip_infoframe avi_if = {
 976                 .type = DIP_TYPE_AVI,
 977                 .version = DIP_VERSION_AVI,
 978                 .len = DIP_LEN_AVI,
 979         };
 980
 981         avi_if.checksum = intel_sdvo_calc_hbuf_csum((uint8_t *)&avi_if,
 982                                                     4 + avi_if.len);
 983         return intel_sdvo_set_hdmi_buf(intel_sdvo, 1, (uint8_t *)&avi_if,
 984                                        4 + avi_if.len,
 985                                        SDVO_HBUF_TX_VSYNC);
 986 }
 987
 988 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
 989 {
 990         struct intel_sdvo_tv_format format;
 991         uint32_t format_map;
 992
 993         format_map = 1 << intel_sdvo->tv_format_index;
 994         memset(&format, 0, sizeof(format));
 995         memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map)));
 996
 997         BUILD_BUG_ON(sizeof(format) != 6);
 998         return intel_sdvo_set_value(intel_sdvo,
 999                                     SDVO_CMD_SET_TV_FORMAT,
1000                                     &format, sizeof(format));
1001 }
1002
1003 static bool
1004 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
1005                                         struct drm_display_mode *mode)
1006 {
1007         struct intel_sdvo_dtd output_dtd;
1008
1009         if (!intel_sdvo_set_target_output(intel_sdvo,
1010                                           intel_sdvo->attached_output))
1011                 return false;
1012
1013         intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1014         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1015                 return false;
1016
1017         return true;
1018 }
1019
1020 static bool
1021 intel_sdvo_set_input_timings_for_mode(struct intel_sdvo *intel_sdvo,
1022                                         struct drm_display_mode *mode,
1023                                         struct drm_display_mode *adjusted_mode)
1024 {
1025         struct intel_sdvo_dtd input_dtd;
1026
1027         /* Reset the input timing to the screen. Assume always input 0. */
1028         if (!intel_sdvo_set_target_input(intel_sdvo))
1029                 return false;
1030
1031         if (!intel_sdvo_create_preferred_input_timing(intel_sdvo,
1032                                                       mode->clock / 10,
1033                                                       mode->hdisplay,
1034                                                       mode->vdisplay))
1035                 return false;
1036
1037         if (!intel_sdvo_get_preferred_input_timing(intel_sdvo,
1038                                                    &input_dtd))
1039                 return false;
1040
1041         intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd);
1042         intel_sdvo->sdvo_flags = input_dtd.part2.sdvo_flags;
1043
1044         drm_mode_set_crtcinfo(adjusted_mode, 0);
1045         mode->clock = adjusted_mode->clock;
1046         return true;
1047 }
1048
1049 static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
1050                                   struct drm_display_mode *mode,
1051                                   struct drm_display_mode *adjusted_mode)
1052 {
1053         struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder);
1054
1055         /* We need to construct preferred input timings based on our
1056          * output timings.  To do that, we have to set the output
1057          * timings, even though this isn't really the right place in
1058          * the sequence to do it. Oh well.
1059          */
1060         if (intel_sdvo->is_tv) {
1061                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
1062                         return false;
1063
1064                 if (!intel_sdvo_set_input_timings_for_mode(intel_sdvo, mode, adjusted_mode))
1065                         return false;
1066         } else if (intel_sdvo->is_lvds) {
1067                 drm_mode_set_crtcinfo(intel_sdvo->sdvo_lvds_fixed_mode, 0);
1068
1069                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
1070                                                             intel_sdvo->sdvo_lvds_fixed_mode))
1071                         return false;
1072
1073                 if (!intel_sdvo_set_input_timings_for_mode(intel_sdvo, mode, adjusted_mode))
1074                         return false;
1075         }
1076
1077         /* Make the CRTC code factor in the SDVO pixel multiplier.  The
1078          * SDVO device will be told of the multiplier during mode_set.
1079          */
1080         adjusted_mode->clock *= intel_sdvo_get_pixel_multiplier(mode);
1081
1082         return true;
1083 }
1084
1085 static void intel_sdvo_mode_set(struct drm_encoder *encoder,
1086                                 struct drm_display_mode *mode,
1087                                 struct drm_display_mode *adjusted_mode)
1088 {
1089         struct drm_device *dev = encoder->dev;
1090         struct drm_i915_private *dev_priv = dev->dev_private;
1091         struct drm_crtc *crtc = encoder->crtc;
1092         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1093         struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder);
1094         u32 sdvox = 0;
1095         int sdvo_pixel_multiply, rate;
1096         struct intel_sdvo_in_out_map in_out;
1097         struct intel_sdvo_dtd input_dtd;
1098
1099         if (!mode)
1100                 return;
1101
1102         /* First, set the input mapping for the first input to our controlled
1103          * output. This is only correct if we're a single-input device, in
1104          * which case the first input is the output from the appropriate SDVO
1105          * channel on the motherboard.  In a two-input device, the first input
1106          * will be SDVOB and the second SDVOC.
1107          */
1108         in_out.in0 = intel_sdvo->attached_output;
1109         in_out.in1 = 0;
1110
1111         if (!intel_sdvo_set_value(intel_sdvo,
1112                                   SDVO_CMD_SET_IN_OUT_MAP,
1113                                   &in_out, sizeof(in_out)))
1114                 return;
1115
1116         if (intel_sdvo->is_hdmi) {
1117                 if (!intel_sdvo_set_avi_infoframe(intel_sdvo, mode))
1118                         return;
1119
1120                 sdvox |= SDVO_AUDIO_ENABLE;
1121         }
1122
1123         /* We have tried to get input timing in mode_fixup, and filled into
1124            adjusted_mode */
1125         if (intel_sdvo->is_tv || intel_sdvo->is_lvds) {
1126                 intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
1127                 input_dtd.part2.sdvo_flags = intel_sdvo->sdvo_flags;
1128         } else
1129                 intel_sdvo_get_dtd_from_mode(&input_dtd, mode);
1130
1131         /* If it's a TV, we already set the output timing in mode_fixup.
1132          * Otherwise, the output timing is equal to the input timing.
1133          */
1134         if (!intel_sdvo->is_tv && !intel_sdvo->is_lvds) {
1135                 /* Set the output timing to the screen */
1136                 if (!intel_sdvo_set_target_output(intel_sdvo,
1137                                                   intel_sdvo->attached_output))
1138                         return;
1139
1140                 if (!intel_sdvo_set_output_timing(intel_sdvo, &input_dtd))
1141                         return;
1142         }
1143
1144         /* Set the input timing to the screen. Assume always input 0. */
1145         if (!intel_sdvo_set_target_input(intel_sdvo))
1146                 return;
1147
1148         if (intel_sdvo->is_tv) {
1149                 if (!intel_sdvo_set_tv_format(intel_sdvo))
1150                         return;
1151         }
1152
1153         /* We would like to use intel_sdvo_create_preferred_input_timing() to
1154          * provide the device with a timing it can support, if it supports that
1155          * feature.  However, presumably we would need to adjust the CRTC to
1156          * output the preferred timing, and we don't support that currently.
1157          */
1158 #if 0
1159         success = intel_sdvo_create_preferred_input_timing(encoder, clock,
1160                                                            width, height);
1161         if (success) {
1162                 struct intel_sdvo_dtd *input_dtd;
1163
1164                 intel_sdvo_get_preferred_input_timing(encoder, &input_dtd);
1165                 intel_sdvo_set_input_timing(encoder, &input_dtd);
1166         }
1167 #else
1168         if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd))
1169                 return;
1170 #endif
1171
1172         sdvo_pixel_multiply = intel_sdvo_get_pixel_multiplier(mode);
1173         switch (sdvo_pixel_multiply) {
1174         case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break;
1175         case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break;
1176         case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break;
1177         }
1178         if (!intel_sdvo_set_clock_rate_mult(intel_sdvo, rate))
1179                 return;
1180
1181         /* Set the SDVO control regs. */
1182         if (IS_I965G(dev)) {
1183                 sdvox |= SDVO_BORDER_ENABLE;
1184                 if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
1185                         sdvox |= SDVO_VSYNC_ACTIVE_HIGH;
1186                 if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
1187                         sdvox |= SDVO_HSYNC_ACTIVE_HIGH;
1188         } else {
1189                 sdvox |= I915_READ(intel_sdvo->sdvo_reg);
1190                 switch (intel_sdvo->sdvo_reg) {
1191                 case SDVOB:
1192                         sdvox &= SDVOB_PRESERVE_MASK;
1193                         break;
1194                 case SDVOC:
1195                         sdvox &= SDVOC_PRESERVE_MASK;
1196                         break;
1197                 }
1198                 sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
1199         }
1200         if (intel_crtc->pipe == 1)
1201                 sdvox |= SDVO_PIPE_B_SELECT;
1202
1203         if (IS_I965G(dev)) {
1204                 /* done in crtc_mode_set as the dpll_md reg must be written early */
1205         } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
1206                 /* done in crtc_mode_set as it lives inside the dpll register */
1207         } else {
1208                 sdvox |= (sdvo_pixel_multiply - 1) << SDVO_PORT_MULTIPLY_SHIFT;
1209         }
1210
1211         if (intel_sdvo->sdvo_flags & SDVO_NEED_TO_STALL)
1212                 sdvox |= SDVO_STALL_SELECT;
1213         intel_sdvo_write_sdvox(intel_sdvo, sdvox);
1214 }
1215
1216 static void intel_sdvo_dpms(struct drm_encoder *encoder, int mode)
1217 {
1218         struct drm_device *dev = encoder->dev;
1219         struct drm_i915_private *dev_priv = dev->dev_private;
1220         struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder);
1221         struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
1222         u32 temp;
1223
1224         if (mode != DRM_MODE_DPMS_ON) {
1225                 intel_sdvo_set_active_outputs(intel_sdvo, 0);
1226                 if (0)
1227                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1228
1229                 if (mode == DRM_MODE_DPMS_OFF) {
1230                         temp = I915_READ(intel_sdvo->sdvo_reg);
1231                         if ((temp & SDVO_ENABLE) != 0) {
1232                                 intel_sdvo_write_sdvox(intel_sdvo, temp & ~SDVO_ENABLE);
1233                         }
1234                 }
1235         } else {
1236                 bool input1, input2;
1237                 int i;
1238                 u8 status;
1239
1240                 temp = I915_READ(intel_sdvo->sdvo_reg);
1241                 if ((temp & SDVO_ENABLE) == 0)
1242                         intel_sdvo_write_sdvox(intel_sdvo, temp | SDVO_ENABLE);
1243                 for (i = 0; i < 2; i++)
1244                         intel_wait_for_vblank(dev, intel_crtc->pipe);
1245
1246                 status = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2);
1247                 /* Warn if the device reported failure to sync.
1248                  * A lot of SDVO devices fail to notify of sync, but it's
1249                  * a given it the status is a success, we succeeded.
1250                  */
1251                 if (status == SDVO_CMD_STATUS_SUCCESS && !input1) {
1252                         DRM_DEBUG_KMS("First %s output reported failure to "
1253                                         "sync\n", SDVO_NAME(intel_sdvo));
1254                 }
1255
1256                 if (0)
1257                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1258                 intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1259         }
1260         return;
1261 }
1262
1263 static int intel_sdvo_mode_valid(struct drm_connector *connector,
1264                                  struct drm_display_mode *mode)
1265 {
1266         struct drm_encoder *encoder = intel_attached_encoder(connector);
1267         struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder);
1268
1269         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
1270                 return MODE_NO_DBLESCAN;
1271
1272         if (intel_sdvo->pixel_clock_min > mode->clock)
1273                 return MODE_CLOCK_LOW;
1274
1275         if (intel_sdvo->pixel_clock_max < mode->clock)
1276                 return MODE_CLOCK_HIGH;
1277
1278         if (intel_sdvo->is_lvds) {
1279                 if (mode->hdisplay > intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
1280                         return MODE_PANEL;
1281
1282                 if (mode->vdisplay > intel_sdvo->sdvo_lvds_fixed_mode->vdisplay)
1283                         return MODE_PANEL;
1284         }
1285
1286         return MODE_OK;
1287 }
1288
1289 static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct intel_sdvo_caps *caps)
1290 {
1291         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_DEVICE_CAPS, caps, sizeof(*caps));
1292 }
1293
1294 /* No use! */
1295 #if 0
1296 struct drm_connector* intel_sdvo_find(struct drm_device *dev, int sdvoB)
1297 {
1298         struct drm_connector *connector = NULL;
1299         struct intel_sdvo *iout = NULL;
1300         struct intel_sdvo *sdvo;
1301
1302         /* find the sdvo connector */
1303         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1304                 iout = to_intel_sdvo(connector);
1305
1306                 if (iout->type != INTEL_OUTPUT_SDVO)
1307                         continue;
1308
1309                 sdvo = iout->dev_priv;
1310
1311                 if (sdvo->sdvo_reg == SDVOB && sdvoB)
1312                         return connector;
1313
1314                 if (sdvo->sdvo_reg == SDVOC && !sdvoB)
1315                         return connector;
1316
1317         }
1318
1319         return NULL;
1320 }
1321
1322 int intel_sdvo_supports_hotplug(struct drm_connector *connector)
1323 {
1324         u8 response[2];
1325         u8 status;
1326         struct intel_sdvo *intel_sdvo;
1327         DRM_DEBUG_KMS("\n");
1328
1329         if (!connector)
1330                 return 0;
1331
1332         intel_sdvo = to_intel_sdvo(connector);
1333
1334         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
1335                                     &response, 2) && response[0];
1336 }
1337
1338 void intel_sdvo_set_hotplug(struct drm_connector *connector, int on)
1339 {
1340         u8 response[2];
1341         u8 status;
1342         struct intel_sdvo *intel_sdvo = to_intel_sdvo(connector);
1343
1344         intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG, NULL, 0);
1345         intel_sdvo_read_response(intel_sdvo, &response, 2);
1346
1347         if (on) {
1348                 intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT, NULL, 0);
1349                 status = intel_sdvo_read_response(intel_sdvo, &response, 2);
1350
1351                 intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &response, 2);
1352         } else {
1353                 response[0] = 0;
1354                 response[1] = 0;
1355                 intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &response, 2);
1356         }
1357
1358         intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG, NULL, 0);
1359         intel_sdvo_read_response(intel_sdvo, &response, 2);
1360 }
1361 #endif
1362
1363 static bool
1364 intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
1365 {
1366         int caps = 0;
1367
1368         if (intel_sdvo->caps.output_flags &
1369                 (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1))
1370                 caps++;
1371         if (intel_sdvo->caps.output_flags &
1372                 (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1))
1373                 caps++;
1374         if (intel_sdvo->caps.output_flags &
1375                 (SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_SVID1))
1376                 caps++;
1377         if (intel_sdvo->caps.output_flags &
1378                 (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_CVBS1))
1379                 caps++;
1380         if (intel_sdvo->caps.output_flags &
1381                 (SDVO_OUTPUT_YPRPB0 | SDVO_OUTPUT_YPRPB1))
1382                 caps++;
1383
1384         if (intel_sdvo->caps.output_flags &
1385                 (SDVO_OUTPUT_SCART0 | SDVO_OUTPUT_SCART1))
1386                 caps++;
1387
1388         if (intel_sdvo->caps.output_flags &
1389                 (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1))
1390                 caps++;
1391
1392         return (caps > 1);
1393 }
1394
1395 static struct drm_connector *
1396 intel_find_analog_connector(struct drm_device *dev)
1397 {
1398         struct drm_connector *connector;
1399         struct drm_encoder *encoder;
1400         struct intel_sdvo *intel_sdvo;
1401
1402         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1403                 intel_sdvo = enc_to_intel_sdvo(encoder);
1404                 if (intel_sdvo->base.type == INTEL_OUTPUT_ANALOG) {
1405                         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1406                                 if (encoder == intel_attached_encoder(connector))
1407                                         return connector;
1408                         }
1409                 }
1410         }
1411         return NULL;
1412 }
1413
1414 static int
1415 intel_analog_is_connected(struct drm_device *dev)
1416 {
1417         struct drm_connector *analog_connector;
1418
1419         analog_connector = intel_find_analog_connector(dev);
1420         if (!analog_connector)
1421                 return false;
1422
1423         if (analog_connector->funcs->detect(analog_connector) ==
1424                         connector_status_disconnected)
1425                 return false;
1426
1427         return true;
1428 }
1429
1430 enum drm_connector_status
1431 intel_sdvo_hdmi_sink_detect(struct drm_connector *connector)
1432 {
1433         struct drm_encoder *encoder = intel_attached_encoder(connector);
1434         struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder);
1435         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1436         enum drm_connector_status status = connector_status_connected;
1437         struct edid *edid = NULL;
1438
1439         edid = drm_get_edid(connector, intel_sdvo->base.ddc_bus);
1440
1441         /* This is only applied to SDVO cards with multiple outputs */
1442         if (edid == NULL && intel_sdvo_multifunc_encoder(intel_sdvo)) {
1443                 uint8_t saved_ddc, temp_ddc;
1444                 saved_ddc = intel_sdvo->ddc_bus;
1445                 temp_ddc = intel_sdvo->ddc_bus >> 1;
1446                 /*
1447                  * Don't use the 1 as the argument of DDC bus switch to get
1448                  * the EDID. It is used for SDVO SPD ROM.
1449                  */
1450                 while(temp_ddc > 1) {
1451                         intel_sdvo->ddc_bus = temp_ddc;
1452                         edid = drm_get_edid(connector, intel_sdvo->base.ddc_bus);
1453                         if (edid) {
1454                                 /*
1455                                  * When we can get the EDID, maybe it is the
1456                                  * correct DDC bus. Update it.
1457                                  */
1458                                 intel_sdvo->ddc_bus = temp_ddc;
1459                                 break;
1460                         }
1461                         temp_ddc >>= 1;
1462                 }
1463                 if (edid == NULL)
1464                         intel_sdvo->ddc_bus = saved_ddc;
1465         }
1466         /* when there is no edid and no monitor is connected with VGA
1467          * port, try to use the CRT ddc to read the EDID for DVI-connector
1468          */
1469         if (edid == NULL && intel_sdvo->analog_ddc_bus &&
1470             !intel_analog_is_connected(connector->dev))
1471                 edid = drm_get_edid(connector, intel_sdvo->analog_ddc_bus);
1472
1473         if (edid != NULL) {
1474                 bool is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
1475                 bool need_digital = !!(intel_sdvo_connector->output_flag & SDVO_TMDS_MASK);
1476
1477                 /* DDC bus is shared, match EDID to connector type */
1478                 if (is_digital && need_digital)
1479                         intel_sdvo->is_hdmi = drm_detect_hdmi_monitor(edid);
1480                 else if (is_digital != need_digital)
1481                         status = connector_status_disconnected;
1482
1483                 connector->display_info.raw_edid = NULL;
1484         } else
1485                 status = connector_status_disconnected;
1486
1487         kfree(edid);
1488
1489         return status;
1490 }
1491
1492 static enum drm_connector_status intel_sdvo_detect(struct drm_connector *connector)
1493 {
1494         uint16_t response;
1495         struct drm_encoder *encoder = intel_attached_encoder(connector);
1496         struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder);
1497         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1498         enum drm_connector_status ret;
1499
1500         if (!intel_sdvo_write_cmd(intel_sdvo,
1501                              SDVO_CMD_GET_ATTACHED_DISPLAYS, NULL, 0))
1502                 return connector_status_unknown;
1503         if (intel_sdvo->is_tv) {
1504                 /* add 30ms delay when the output type is SDVO-TV */
1505                 mdelay(30);
1506         }
1507         if (!intel_sdvo_read_response(intel_sdvo, &response, 2))
1508                 return connector_status_unknown;
1509
1510         DRM_DEBUG_KMS("SDVO response %d %d\n", response & 0xff, response >> 8);
1511
1512         if (response == 0)
1513                 return connector_status_disconnected;
1514
1515         intel_sdvo->attached_output = response;
1516
1517         if ((intel_sdvo_connector->output_flag & response) == 0)
1518                 ret = connector_status_disconnected;
1519         else if (response & SDVO_TMDS_MASK)
1520                 ret = intel_sdvo_hdmi_sink_detect(connector);
1521         else
1522                 ret = connector_status_connected;
1523
1524         /* May update encoder flag for like clock for SDVO TV, etc.*/
1525         if (ret == connector_status_connected) {
1526                 intel_sdvo->is_tv = false;
1527                 intel_sdvo->is_lvds = false;
1528                 intel_sdvo->base.needs_tv_clock = false;
1529
1530                 if (response & SDVO_TV_MASK) {
1531                         intel_sdvo->is_tv = true;
1532                         intel_sdvo->base.needs_tv_clock = true;
1533                 }
1534                 if (response & SDVO_LVDS_MASK)
1535                         intel_sdvo->is_lvds = intel_sdvo->sdvo_lvds_fixed_mode != NULL;
1536         }
1537
1538         return ret;
1539 }
1540
1541 static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
1542 {
1543         struct drm_encoder *encoder = intel_attached_encoder(connector);
1544         struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder);
1545         int num_modes;
1546
1547         /* set the bus switch and get the modes */
1548         num_modes = intel_ddc_get_modes(connector, intel_sdvo->base.ddc_bus);
1549
1550         /*
1551          * Mac mini hack.  On this device, the DVI-I connector shares one DDC
1552          * link between analog and digital outputs. So, if the regular SDVO
1553          * DDC fails, check to see if the analog output is disconnected, in
1554          * which case we'll look there for the digital DDC data.
1555          */
1556         if (num_modes == 0 &&
1557             intel_sdvo->analog_ddc_bus &&
1558             !intel_analog_is_connected(connector->dev)) {
1559                 /* Switch to the analog ddc bus and try that
1560                  */
1561                 (void) intel_ddc_get_modes(connector, intel_sdvo->analog_ddc_bus);
1562         }
1563 }
1564
1565 /*
1566  * Set of SDVO TV modes.
1567  * Note!  This is in reply order (see loop in get_tv_modes).
1568  * XXX: all 60Hz refresh?
1569  */
1570 struct drm_display_mode sdvo_tv_modes[] = {
1571         { DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 5815, 320, 321, 384,
1572                    416, 0, 200, 201, 232, 233, 0,
1573                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1574         { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 6814, 320, 321, 384,
1575                    416, 0, 240, 241, 272, 273, 0,
1576                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1577         { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 9910, 400, 401, 464,
1578                    496, 0, 300, 301, 332, 333, 0,
1579                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1580         { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 16913, 640, 641, 704,
1581                    736, 0, 350, 351, 382, 383, 0,
1582                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1583         { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 19121, 640, 641, 704,
1584                    736, 0, 400, 401, 432, 433, 0,
1585                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1586         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 22654, 640, 641, 704,
1587                    736, 0, 480, 481, 512, 513, 0,
1588                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1589         { DRM_MODE("704x480", DRM_MODE_TYPE_DRIVER, 24624, 704, 705, 768,
1590                    800, 0, 480, 481, 512, 513, 0,
1591                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1592         { DRM_MODE("704x576", DRM_MODE_TYPE_DRIVER, 29232, 704, 705, 768,
1593                    800, 0, 576, 577, 608, 609, 0,
1594                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1595         { DRM_MODE("720x350", DRM_MODE_TYPE_DRIVER, 18751, 720, 721, 784,
1596                    816, 0, 350, 351, 382, 383, 0,
1597                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1598         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 21199, 720, 721, 784,
1599                    816, 0, 400, 401, 432, 433, 0,
1600                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1601         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 25116, 720, 721, 784,
1602                    816, 0, 480, 481, 512, 513, 0,
1603                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1604         { DRM_MODE("720x540", DRM_MODE_TYPE_DRIVER, 28054, 720, 721, 784,
1605                    816, 0, 540, 541, 572, 573, 0,
1606                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1607         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 29816, 720, 721, 784,
1608                    816, 0, 576, 577, 608, 609, 0,
1609                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1610         { DRM_MODE("768x576", DRM_MODE_TYPE_DRIVER, 31570, 768, 769, 832,
1611                    864, 0, 576, 577, 608, 609, 0,
1612                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1613         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 34030, 800, 801, 864,
1614                    896, 0, 600, 601, 632, 633, 0,
1615                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1616         { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 36581, 832, 833, 896,
1617                    928, 0, 624, 625, 656, 657, 0,
1618                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1619         { DRM_MODE("920x766", DRM_MODE_TYPE_DRIVER, 48707, 920, 921, 984,
1620                    1016, 0, 766, 767, 798, 799, 0,
1621                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1622         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 53827, 1024, 1025, 1088,
1623                    1120, 0, 768, 769, 800, 801, 0,
1624                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1625         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 87265, 1280, 1281, 1344,
1626                    1376, 0, 1024, 1025, 1056, 1057, 0,
1627                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1628 };
1629
1630 static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
1631 {
1632         struct drm_encoder *encoder = intel_attached_encoder(connector);
1633         struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder);
1634         struct intel_sdvo_sdtv_resolution_request tv_res;
1635         uint32_t reply = 0, format_map = 0;
1636         int i;
1637
1638         /* Read the list of supported input resolutions for the selected TV
1639          * format.
1640          */
1641         format_map = 1 << intel_sdvo->tv_format_index;
1642         memcpy(&tv_res, &format_map,
1643                min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request)));
1644
1645         if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo->attached_output))
1646                 return;
1647
1648         BUILD_BUG_ON(sizeof(tv_res) != 3);
1649         if (!intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT,
1650                                   &tv_res, sizeof(tv_res)))
1651                 return;
1652         if (!intel_sdvo_read_response(intel_sdvo, &reply, 3))
1653                 return;
1654
1655         for (i = 0; i < ARRAY_SIZE(sdvo_tv_modes); i++)
1656                 if (reply & (1 << i)) {
1657                         struct drm_display_mode *nmode;
1658                         nmode = drm_mode_duplicate(connector->dev,
1659                                                    &sdvo_tv_modes[i]);
1660                         if (nmode)
1661                                 drm_mode_probed_add(connector, nmode);
1662                 }
1663 }
1664
1665 static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
1666 {
1667         struct drm_encoder *encoder = intel_attached_encoder(connector);
1668         struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder);
1669         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1670         struct drm_display_mode *newmode;
1671
1672         /*
1673          * Attempt to get the mode list from DDC.
1674          * Assume that the preferred modes are
1675          * arranged in priority order.
1676          */
1677         intel_ddc_get_modes(connector, intel_sdvo->base.ddc_bus);
1678         if (list_empty(&connector->probed_modes) == false)
1679                 goto end;
1680
1681         /* Fetch modes from VBT */
1682         if (dev_priv->sdvo_lvds_vbt_mode != NULL) {
1683                 newmode = drm_mode_duplicate(connector->dev,
1684                                              dev_priv->sdvo_lvds_vbt_mode);
1685                 if (newmode != NULL) {
1686                         /* Guarantee the mode is preferred */
1687                         newmode->type = (DRM_MODE_TYPE_PREFERRED |
1688                                          DRM_MODE_TYPE_DRIVER);
1689                         drm_mode_probed_add(connector, newmode);
1690                 }
1691         }
1692
1693 end:
1694         list_for_each_entry(newmode, &connector->probed_modes, head) {
1695                 if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
1696                         intel_sdvo->sdvo_lvds_fixed_mode =
1697                                 drm_mode_duplicate(connector->dev, newmode);
1698                         intel_sdvo->is_lvds = true;
1699                         break;
1700                 }
1701         }
1702
1703 }
1704
1705 static int intel_sdvo_get_modes(struct drm_connector *connector)
1706 {
1707         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1708
1709         if (IS_TV(intel_sdvo_connector))
1710                 intel_sdvo_get_tv_modes(connector);
1711         else if (IS_LVDS(intel_sdvo_connector))
1712                 intel_sdvo_get_lvds_modes(connector);
1713         else
1714                 intel_sdvo_get_ddc_modes(connector);
1715
1716         return !list_empty(&connector->probed_modes);
1717 }
1718
1719 static void
1720 intel_sdvo_destroy_enhance_property(struct drm_connector *connector)
1721 {
1722         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1723         struct drm_device *dev = connector->dev;
1724
1725         if (intel_sdvo_connector->left)
1726                 drm_property_destroy(dev, intel_sdvo_connector->left);
1727         if (intel_sdvo_connector->right)
1728                 drm_property_destroy(dev, intel_sdvo_connector->right);
1729         if (intel_sdvo_connector->top)
1730                 drm_property_destroy(dev, intel_sdvo_connector->top);
1731         if (intel_sdvo_connector->bottom)
1732                 drm_property_destroy(dev, intel_sdvo_connector->bottom);
1733         if (intel_sdvo_connector->hpos)
1734                 drm_property_destroy(dev, intel_sdvo_connector->hpos);
1735         if (intel_sdvo_connector->vpos)
1736                 drm_property_destroy(dev, intel_sdvo_connector->vpos);
1737         if (intel_sdvo_connector->saturation)
1738                 drm_property_destroy(dev, intel_sdvo_connector->saturation);
1739         if (intel_sdvo_connector->contrast)
1740                 drm_property_destroy(dev, intel_sdvo_connector->contrast);
1741         if (intel_sdvo_connector->hue)
1742                 drm_property_destroy(dev, intel_sdvo_connector->hue);
1743         if (intel_sdvo_connector->sharpness)
1744                 drm_property_destroy(dev, intel_sdvo_connector->sharpness);
1745         if (intel_sdvo_connector->flicker_filter)
1746                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter);
1747         if (intel_sdvo_connector->flicker_filter_2d)
1748                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_2d);
1749         if (intel_sdvo_connector->flicker_filter_adaptive)
1750                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_adaptive);
1751         if (intel_sdvo_connector->tv_luma_filter)
1752                 drm_property_destroy(dev, intel_sdvo_connector->tv_luma_filter);
1753         if (intel_sdvo_connector->tv_chroma_filter)
1754                 drm_property_destroy(dev, intel_sdvo_connector->tv_chroma_filter);
1755         if (intel_sdvo_connector->dot_crawl)
1756                 drm_property_destroy(dev, intel_sdvo_connector->dot_crawl);
1757         if (intel_sdvo_connector->brightness)
1758                 drm_property_destroy(dev, intel_sdvo_connector->brightness);
1759 }
1760
1761 static void intel_sdvo_destroy(struct drm_connector *connector)
1762 {
1763         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1764
1765         if (intel_sdvo_connector->tv_format)
1766                 drm_property_destroy(connector->dev,
1767                                      intel_sdvo_connector->tv_format);
1768
1769         intel_sdvo_destroy_enhance_property(connector);
1770         drm_sysfs_connector_remove(connector);
1771         drm_connector_cleanup(connector);
1772         kfree(connector);
1773 }
1774
1775 static int
1776 intel_sdvo_set_property(struct drm_connector *connector,
1777                         struct drm_property *property,
1778                         uint64_t val)
1779 {
1780         struct drm_encoder *encoder = intel_attached_encoder(connector);
1781         struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder);
1782         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1783         uint16_t temp_value;
1784         uint8_t cmd;
1785         int ret;
1786
1787         ret = drm_connector_property_set_value(connector, property, val);
1788         if (ret)
1789                 return ret;
1790
1791 #define CHECK_PROPERTY(name, NAME) \
1792         if (intel_sdvo_connector->name == property) { \
1793                 if (intel_sdvo_connector->cur_##name == temp_value) return 0; \
1794                 if (intel_sdvo_connector->max_##name < temp_value) return -EINVAL; \
1795                 cmd = SDVO_CMD_SET_##NAME; \
1796                 intel_sdvo_connector->cur_##name = temp_value; \
1797                 goto set_value; \
1798         }
1799
1800         if (property == intel_sdvo_connector->tv_format) {
1801                 if (val >= TV_FORMAT_NUM)
1802                         return -EINVAL;
1803
1804                 if (intel_sdvo->tv_format_index ==
1805                     intel_sdvo_connector->tv_format_supported[val])
1806                         return 0;
1807
1808                 intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[val];
1809                 goto done;
1810         } else if (IS_TV_OR_LVDS(intel_sdvo_connector)) {
1811                 temp_value = val;
1812                 if (intel_sdvo_connector->left == property) {
1813                         drm_connector_property_set_value(connector,
1814                                                          intel_sdvo_connector->right, val);
1815                         if (intel_sdvo_connector->left_margin == temp_value)
1816                                 return 0;
1817
1818                         intel_sdvo_connector->left_margin = temp_value;
1819                         intel_sdvo_connector->right_margin = temp_value;
1820                         temp_value = intel_sdvo_connector->max_hscan -
1821                                 intel_sdvo_connector->left_margin;
1822                         cmd = SDVO_CMD_SET_OVERSCAN_H;
1823                         goto set_value;
1824                 } else if (intel_sdvo_connector->right == property) {
1825                         drm_connector_property_set_value(connector,
1826                                                          intel_sdvo_connector->left, val);
1827                         if (intel_sdvo_connector->right_margin == temp_value)
1828                                 return 0;
1829
1830                         intel_sdvo_connector->left_margin = temp_value;
1831                         intel_sdvo_connector->right_margin = temp_value;
1832                         temp_value = intel_sdvo_connector->max_hscan -
1833                                 intel_sdvo_connector->left_margin;
1834                         cmd = SDVO_CMD_SET_OVERSCAN_H;
1835                         goto set_value;
1836                 } else if (intel_sdvo_connector->top == property) {
1837                         drm_connector_property_set_value(connector,
1838                                                          intel_sdvo_connector->bottom, val);
1839                         if (intel_sdvo_connector->top_margin == temp_value)
1840                                 return 0;
1841
1842                         intel_sdvo_connector->top_margin = temp_value;
1843                         intel_sdvo_connector->bottom_margin = temp_value;
1844                         temp_value = intel_sdvo_connector->max_vscan -
1845                                 intel_sdvo_connector->top_margin;
1846                         cmd = SDVO_CMD_SET_OVERSCAN_V;
1847                         goto set_value;
1848                 } else if (intel_sdvo_connector->bottom == property) {
1849                         drm_connector_property_set_value(connector,
1850                                                          intel_sdvo_connector->top, val);
1851                         if (intel_sdvo_connector->bottom_margin == temp_value)
1852                                 return 0;
1853
1854                         intel_sdvo_connector->top_margin = temp_value;
1855                         intel_sdvo_connector->bottom_margin = temp_value;
1856                         temp_value = intel_sdvo_connector->max_vscan -
1857                                 intel_sdvo_connector->top_margin;
1858                         cmd = SDVO_CMD_SET_OVERSCAN_V;
1859                         goto set_value;
1860                 }
1861                 CHECK_PROPERTY(hpos, HPOS)
1862                 CHECK_PROPERTY(vpos, VPOS)
1863                 CHECK_PROPERTY(saturation, SATURATION)
1864                 CHECK_PROPERTY(contrast, CONTRAST)
1865                 CHECK_PROPERTY(hue, HUE)
1866                 CHECK_PROPERTY(brightness, BRIGHTNESS)
1867                 CHECK_PROPERTY(sharpness, SHARPNESS)
1868                 CHECK_PROPERTY(flicker_filter, FLICKER_FILTER)
1869                 CHECK_PROPERTY(flicker_filter_2d, FLICKER_FILTER_2D)
1870                 CHECK_PROPERTY(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE)
1871                 CHECK_PROPERTY(tv_chroma_filter, TV_CHROMA_FILTER)
1872                 CHECK_PROPERTY(tv_luma_filter, TV_LUMA_FILTER)
1873                 CHECK_PROPERTY(dot_crawl, DOT_CRAWL)
1874         }
1875
1876         return -EINVAL; /* unknown property */
1877
1878 set_value:
1879         if (!intel_sdvo_set_value(intel_sdvo, cmd, &temp_value, 2))
1880                 return -EIO;
1881
1882
1883 done:
1884         if (encoder->crtc) {
1885                 struct drm_crtc *crtc = encoder->crtc;
1886
1887                 drm_crtc_helper_set_mode(crtc, &crtc->mode, crtc->x,
1888                                          crtc->y, crtc->fb);
1889         }
1890
1891         return 0;
1892 #undef CHECK_PROPERTY
1893 }
1894
1895 static const struct drm_encoder_helper_funcs intel_sdvo_helper_funcs = {
1896         .dpms = intel_sdvo_dpms,
1897         .mode_fixup = intel_sdvo_mode_fixup,
1898         .prepare = intel_encoder_prepare,
1899         .mode_set = intel_sdvo_mode_set,
1900         .commit = intel_encoder_commit,
1901 };
1902
1903 static const struct drm_connector_funcs intel_sdvo_connector_funcs = {
1904         .dpms = drm_helper_connector_dpms,
1905         .detect = intel_sdvo_detect,
1906         .fill_modes = drm_helper_probe_single_connector_modes,
1907         .set_property = intel_sdvo_set_property,
1908         .destroy = intel_sdvo_destroy,
1909 };
1910
1911 static const struct drm_connector_helper_funcs intel_sdvo_connector_helper_funcs = {
1912         .get_modes = intel_sdvo_get_modes,
1913         .mode_valid = intel_sdvo_mode_valid,
1914         .best_encoder = intel_attached_encoder,
1915 };
1916
1917 static void intel_sdvo_enc_destroy(struct drm_encoder *encoder)
1918 {
1919         struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder);
1920
1921         if (intel_sdvo->analog_ddc_bus)
1922                 intel_i2c_destroy(intel_sdvo->analog_ddc_bus);
1923
1924         if (intel_sdvo->sdvo_lvds_fixed_mode != NULL)
1925                 drm_mode_destroy(encoder->dev,
1926                                  intel_sdvo->sdvo_lvds_fixed_mode);
1927
1928         intel_encoder_destroy(encoder);
1929 }
1930
1931 static const struct drm_encoder_funcs intel_sdvo_enc_funcs = {
1932         .destroy = intel_sdvo_enc_destroy,
1933 };
1934
1935
1936 /**
1937  * Choose the appropriate DDC bus for control bus switch command for this
1938  * SDVO output based on the controlled output.
1939  *
1940  * DDC bus number assignment is in a priority order of RGB outputs, then TMDS
1941  * outputs, then LVDS outputs.
1942  */
1943 static void
1944 intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv,
1945                           struct intel_sdvo *sdvo, u32 reg)
1946 {
1947         struct sdvo_device_mapping *mapping;
1948
1949         if (IS_SDVOB(reg))
1950                 mapping = &(dev_priv->sdvo_mappings[0]);
1951         else
1952                 mapping = &(dev_priv->sdvo_mappings[1]);
1953
1954         sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
1955 }
1956
1957 static bool
1958 intel_sdvo_get_digital_encoding_mode(struct intel_sdvo *intel_sdvo, int device)
1959 {
1960         return intel_sdvo_set_target_output(intel_sdvo,
1961                                             device == 0 ? SDVO_OUTPUT_TMDS0 : SDVO_OUTPUT_TMDS1) &&
1962                 intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ENCODE,
1963                                      &intel_sdvo->is_hdmi, 1);
1964 }
1965
1966 static struct intel_sdvo *
1967 intel_sdvo_chan_to_intel_sdvo(struct intel_i2c_chan *chan)
1968 {
1969         struct drm_device *dev = chan->drm_dev;
1970         struct drm_encoder *encoder;
1971
1972         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1973                 struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder);
1974                 if (intel_sdvo->base.ddc_bus == &chan->adapter)
1975                         return intel_sdvo;
1976         }
1977
1978         return NULL;
1979 }
1980
1981 static int intel_sdvo_master_xfer(struct i2c_adapter *i2c_adap,
1982                                   struct i2c_msg msgs[], int num)
1983 {
1984         struct intel_sdvo *intel_sdvo;
1985         struct i2c_algo_bit_data *algo_data;
1986         const struct i2c_algorithm *algo;
1987
1988         algo_data = (struct i2c_algo_bit_data *)i2c_adap->algo_data;
1989         intel_sdvo =
1990                 intel_sdvo_chan_to_intel_sdvo((struct intel_i2c_chan *)
1991                                               (algo_data->data));
1992         if (intel_sdvo == NULL)
1993                 return -EINVAL;
1994
1995         algo = intel_sdvo->base.i2c_bus->algo;
1996
1997         intel_sdvo_set_control_bus_switch(intel_sdvo, intel_sdvo->ddc_bus);
1998         return algo->master_xfer(i2c_adap, msgs, num);
1999 }
2000
2001 static struct i2c_algorithm intel_sdvo_i2c_bit_algo = {
2002         .master_xfer    = intel_sdvo_master_xfer,
2003 };
2004
2005 static u8
2006 intel_sdvo_get_slave_addr(struct drm_device *dev, int sdvo_reg)
2007 {
2008         struct drm_i915_private *dev_priv = dev->dev_private;
2009         struct sdvo_device_mapping *my_mapping, *other_mapping;
2010
2011         if (IS_SDVOB(sdvo_reg)) {
2012                 my_mapping = &dev_priv->sdvo_mappings[0];
2013                 other_mapping = &dev_priv->sdvo_mappings[1];
2014         } else {
2015                 my_mapping = &dev_priv->sdvo_mappings[1];
2016                 other_mapping = &dev_priv->sdvo_mappings[0];
2017         }
2018
2019         /* If the BIOS described our SDVO device, take advantage of it. */
2020         if (my_mapping->slave_addr)
2021                 return my_mapping->slave_addr;
2022
2023         /* If the BIOS only described a different SDVO device, use the
2024          * address that it isn't using.
2025          */
2026         if (other_mapping->slave_addr) {
2027                 if (other_mapping->slave_addr == 0x70)
2028                         return 0x72;
2029                 else
2030                         return 0x70;
2031         }
2032
2033         /* No SDVO device info is found for another DVO port,
2034          * so use mapping assumption we had before BIOS parsing.
2035          */
2036         if (IS_SDVOB(sdvo_reg))
2037                 return 0x70;
2038         else
2039                 return 0x72;
2040 }
2041
2042 static void
2043 intel_sdvo_connector_init(struct drm_encoder *encoder,
2044                           struct drm_connector *connector)
2045 {
2046         drm_connector_init(encoder->dev, connector, &intel_sdvo_connector_funcs,
2047                            connector->connector_type);
2048
2049         drm_connector_helper_add(connector, &intel_sdvo_connector_helper_funcs);
2050
2051         connector->interlace_allowed = 0;
2052         connector->doublescan_allowed = 0;
2053         connector->display_info.subpixel_order = SubPixelHorizontalRGB;
2054
2055         drm_mode_connector_attach_encoder(connector, encoder);
2056         drm_sysfs_connector_add(connector);
2057 }
2058
2059 static bool
2060 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
2061 {
2062         struct drm_encoder *encoder = &intel_sdvo->base.enc;
2063         struct drm_connector *connector;
2064         struct intel_connector *intel_connector;
2065         struct intel_sdvo_connector *intel_sdvo_connector;
2066
2067         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2068         if (!intel_sdvo_connector)
2069                 return false;
2070
2071         if (device == 0) {
2072                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS0;
2073                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS0;
2074         } else if (device == 1) {
2075                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS1;
2076                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS1;
2077         }
2078
2079         intel_connector = &intel_sdvo_connector->base;
2080         connector = &intel_connector->base;
2081         connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
2082         encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
2083         connector->connector_type = DRM_MODE_CONNECTOR_DVID;
2084
2085         if (intel_sdvo_get_supp_encode(intel_sdvo, &intel_sdvo->encode)
2086                 && intel_sdvo_get_digital_encoding_mode(intel_sdvo, device)
2087                 && intel_sdvo->is_hdmi) {
2088                 /* enable hdmi encoding mode if supported */
2089                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI);
2090                 intel_sdvo_set_colorimetry(intel_sdvo,
2091                                            SDVO_COLORIMETRY_RGB256);
2092                 connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
2093         }
2094         intel_sdvo->base.clone_mask = ((1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
2095                                        (1 << INTEL_ANALOG_CLONE_BIT));
2096
2097         intel_sdvo_connector_init(encoder, connector);
2098
2099         return true;
2100 }
2101
2102 static bool
2103 intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
2104 {
2105         struct drm_encoder *encoder = &intel_sdvo->base.enc;
2106         struct drm_connector *connector;
2107         struct intel_connector *intel_connector;
2108         struct intel_sdvo_connector *intel_sdvo_connector;
2109
2110         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2111         if (!intel_sdvo_connector)
2112                 return false;
2113
2114         intel_connector = &intel_sdvo_connector->base;
2115         connector = &intel_connector->base;
2116         encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
2117         connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
2118
2119         intel_sdvo->controlled_output |= type;
2120         intel_sdvo_connector->output_flag = type;
2121
2122         intel_sdvo->is_tv = true;
2123         intel_sdvo->base.needs_tv_clock = true;
2124         intel_sdvo->base.clone_mask = 1 << INTEL_SDVO_TV_CLONE_BIT;
2125
2126         intel_sdvo_connector_init(encoder, connector);
2127
2128         if (!intel_sdvo_tv_create_property(intel_sdvo, intel_sdvo_connector, type))
2129                 goto err;
2130
2131         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2132                 goto err;
2133
2134         return true;
2135
2136 err:
2137         intel_sdvo_destroy_enhance_property(connector);
2138         kfree(intel_sdvo_connector);
2139         return false;
2140 }
2141
2142 static bool
2143 intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device)
2144 {
2145         struct drm_encoder *encoder = &intel_sdvo->base.enc;
2146         struct drm_connector *connector;
2147         struct intel_connector *intel_connector;
2148         struct intel_sdvo_connector *intel_sdvo_connector;
2149
2150         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2151         if (!intel_sdvo_connector)
2152                 return false;
2153
2154         intel_connector = &intel_sdvo_connector->base;
2155         connector = &intel_connector->base;
2156         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
2157         encoder->encoder_type = DRM_MODE_ENCODER_DAC;
2158         connector->connector_type = DRM_MODE_CONNECTOR_VGA;
2159
2160         if (device == 0) {
2161                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB0;
2162                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB0;
2163         } else if (device == 1) {
2164                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB1;
2165                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1;
2166         }
2167
2168         intel_sdvo->base.clone_mask = ((1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
2169                                        (1 << INTEL_ANALOG_CLONE_BIT));
2170
2171         intel_sdvo_connector_init(encoder, connector);
2172         return true;
2173 }
2174
2175 static bool
2176 intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
2177 {
2178         struct drm_encoder *encoder = &intel_sdvo->base.enc;
2179         struct drm_connector *connector;
2180         struct intel_connector *intel_connector;
2181         struct intel_sdvo_connector *intel_sdvo_connector;
2182
2183         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2184         if (!intel_sdvo_connector)
2185                 return false;
2186
2187         intel_connector = &intel_sdvo_connector->base;
2188         connector = &intel_connector->base;
2189         encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
2190         connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
2191
2192         if (device == 0) {
2193                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS0;
2194                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS0;
2195         } else if (device == 1) {
2196                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS1;
2197                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1;
2198         }
2199
2200         intel_sdvo->base.clone_mask = ((1 << INTEL_ANALOG_CLONE_BIT) |
2201                                        (1 << INTEL_SDVO_LVDS_CLONE_BIT));
2202
2203         intel_sdvo_connector_init(encoder, connector);
2204         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2205                 goto err;
2206
2207         return true;
2208
2209 err:
2210         intel_sdvo_destroy_enhance_property(connector);
2211         kfree(intel_sdvo_connector);
2212         return false;
2213 }
2214
2215 static bool
2216 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
2217 {
2218         intel_sdvo->is_tv = false;
2219         intel_sdvo->base.needs_tv_clock = false;
2220         intel_sdvo->is_lvds = false;
2221
2222         /* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
2223
2224         if (flags & SDVO_OUTPUT_TMDS0)
2225                 if (!intel_sdvo_dvi_init(intel_sdvo, 0))
2226                         return false;
2227
2228         if ((flags & SDVO_TMDS_MASK) == SDVO_TMDS_MASK)
2229                 if (!intel_sdvo_dvi_init(intel_sdvo, 1))
2230                         return false;
2231
2232         /* TV has no XXX1 function block */
2233         if (flags & SDVO_OUTPUT_SVID0)
2234                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_SVID0))
2235                         return false;
2236
2237         if (flags & SDVO_OUTPUT_CVBS0)
2238                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_CVBS0))
2239                         return false;
2240
2241         if (flags & SDVO_OUTPUT_RGB0)
2242                 if (!intel_sdvo_analog_init(intel_sdvo, 0))
2243                         return false;
2244
2245         if ((flags & SDVO_RGB_MASK) == SDVO_RGB_MASK)
2246                 if (!intel_sdvo_analog_init(intel_sdvo, 1))
2247                         return false;
2248
2249         if (flags & SDVO_OUTPUT_LVDS0)
2250                 if (!intel_sdvo_lvds_init(intel_sdvo, 0))
2251                         return false;
2252
2253         if ((flags & SDVO_LVDS_MASK) == SDVO_LVDS_MASK)
2254                 if (!intel_sdvo_lvds_init(intel_sdvo, 1))
2255                         return false;
2256
2257         if ((flags & SDVO_OUTPUT_MASK) == 0) {
2258                 unsigned char bytes[2];
2259
2260                 intel_sdvo->controlled_output = 0;
2261                 memcpy(bytes, &intel_sdvo->caps.output_flags, 2);
2262                 DRM_DEBUG_KMS("%s: Unknown SDVO output type (0x%02x%02x)\n",
2263                               SDVO_NAME(intel_sdvo),
2264                               bytes[0], bytes[1]);
2265                 return false;
2266         }
2267         intel_sdvo->base.crtc_mask = (1 << 0) | (1 << 1);
2268
2269         return true;
2270 }
2271
2272 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
2273                                           struct intel_sdvo_connector *intel_sdvo_connector,
2274                                           int type)
2275 {
2276         struct drm_device *dev = intel_sdvo->base.enc.dev;
2277         struct intel_sdvo_tv_format format;
2278         uint32_t format_map, i;
2279
2280         if (!intel_sdvo_set_target_output(intel_sdvo, type))
2281                 return false;
2282
2283         if (!intel_sdvo_get_value(intel_sdvo,
2284                                   SDVO_CMD_GET_SUPPORTED_TV_FORMATS,
2285                                   &format, sizeof(format)))
2286                 return false;
2287
2288         memcpy(&format_map, &format, min(sizeof(format_map), sizeof(format)));
2289
2290         if (format_map == 0)
2291                 return false;
2292
2293         intel_sdvo_connector->format_supported_num = 0;
2294         for (i = 0 ; i < TV_FORMAT_NUM; i++)
2295                 if (format_map & (1 << i))
2296                         intel_sdvo_connector->tv_format_supported[intel_sdvo_connector->format_supported_num++] = i;
2297
2298
2299         intel_sdvo_connector->tv_format =
2300                         drm_property_create(dev, DRM_MODE_PROP_ENUM,
2301                                             "mode", intel_sdvo_connector->format_supported_num);
2302         if (!intel_sdvo_connector->tv_format)
2303                 return false;
2304
2305         for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
2306                 drm_property_add_enum(
2307                                 intel_sdvo_connector->tv_format, i,
2308                                 i, tv_format_names[intel_sdvo_connector->tv_format_supported[i]]);
2309
2310         intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[0];
2311         drm_connector_attach_property(&intel_sdvo_connector->base.base,
2312                                       intel_sdvo_connector->tv_format, 0);
2313         return true;
2314
2315 }
2316
2317 #define ENHANCEMENT(name, NAME) do { \
2318         if (enhancements.name) { \
2319                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_MAX_##NAME, &data_value, 4) || \
2320                     !intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_##NAME, &response, 2)) \
2321                         return false; \
2322                 intel_sdvo_connector->max_##name = data_value[0]; \
2323                 intel_sdvo_connector->cur_##name = response; \
2324                 intel_sdvo_connector->name = \
2325                         drm_property_create(dev, DRM_MODE_PROP_RANGE, #name, 2); \
2326                 if (!intel_sdvo_connector->name) return false; \
2327                 intel_sdvo_connector->name->values[0] = 0; \
2328                 intel_sdvo_connector->name->values[1] = data_value[0]; \
2329                 drm_connector_attach_property(connector, \
2330                                               intel_sdvo_connector->name, \
2331                                               intel_sdvo_connector->cur_##name); \
2332                 DRM_DEBUG_KMS(#name ": max %d, default %d, current %d\n", \
2333                               data_value[0], data_value[1], response); \
2334         } \
2335 } while(0)
2336
2337 static bool
2338 intel_sdvo_create_enhance_property_tv(struct intel_sdvo *intel_sdvo,
2339                                       struct intel_sdvo_connector *intel_sdvo_connector,
2340                                       struct intel_sdvo_enhancements_reply enhancements)
2341 {
2342         struct drm_device *dev = intel_sdvo->base.enc.dev;
2343         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2344         uint16_t response, data_value[2];
2345
2346         /* when horizontal overscan is supported, Add the left/right  property */
2347         if (enhancements.overscan_h) {
2348                 if (!intel_sdvo_get_value(intel_sdvo,
2349                                           SDVO_CMD_GET_MAX_OVERSCAN_H,
2350                                           &data_value, 4))
2351                         return false;
2352
2353                 if (!intel_sdvo_get_value(intel_sdvo,
2354                                           SDVO_CMD_GET_OVERSCAN_H,
2355                                           &response, 2))
2356                         return false;
2357
2358                 intel_sdvo_connector->max_hscan = data_value[0];
2359                 intel_sdvo_connector->left_margin = data_value[0] - response;
2360                 intel_sdvo_connector->right_margin = intel_sdvo_connector->left_margin;
2361                 intel_sdvo_connector->left =
2362                         drm_property_create(dev, DRM_MODE_PROP_RANGE,
2363                                             "left_margin", 2);
2364                 if (!intel_sdvo_connector->left)
2365                         return false;
2366
2367                 intel_sdvo_connector->left->values[0] = 0;
2368                 intel_sdvo_connector->left->values[1] = data_value[0];
2369                 drm_connector_attach_property(connector,
2370                                               intel_sdvo_connector->left,
2371                                               intel_sdvo_connector->left_margin);
2372
2373                 intel_sdvo_connector->right =
2374                         drm_property_create(dev, DRM_MODE_PROP_RANGE,
2375                                             "right_margin", 2);
2376                 if (!intel_sdvo_connector->right)
2377                         return false;
2378
2379                 intel_sdvo_connector->right->values[0] = 0;
2380                 intel_sdvo_connector->right->values[1] = data_value[0];
2381                 drm_connector_attach_property(connector,
2382                                               intel_sdvo_connector->right,
2383                                               intel_sdvo_connector->right_margin);
2384                 DRM_DEBUG_KMS("h_overscan: max %d, "
2385                               "default %d, current %d\n",
2386                               data_value[0], data_value[1], response);
2387         }
2388
2389         if (enhancements.overscan_v) {
2390                 if (!intel_sdvo_get_value(intel_sdvo,
2391                                           SDVO_CMD_GET_MAX_OVERSCAN_V,
2392                                           &data_value, 4))
2393                         return false;
2394
2395                 if (!intel_sdvo_get_value(intel_sdvo,
2396                                           SDVO_CMD_GET_OVERSCAN_V,
2397                                           &response, 2))
2398                         return false;
2399
2400                 intel_sdvo_connector->max_vscan = data_value[0];
2401                 intel_sdvo_connector->top_margin = data_value[0] - response;
2402                 intel_sdvo_connector->bottom_margin = intel_sdvo_connector->top_margin;
2403                 intel_sdvo_connector->top =
2404                         drm_property_create(dev, DRM_MODE_PROP_RANGE,
2405                                             "top_margin", 2);
2406                 if (!intel_sdvo_connector->top)
2407                         return false;
2408
2409                 intel_sdvo_connector->top->values[0] = 0;
2410                 intel_sdvo_connector->top->values[1] = data_value[0];
2411                 drm_connector_attach_property(connector,
2412                                               intel_sdvo_connector->top,
2413                                               intel_sdvo_connector->top_margin);
2414
2415                 intel_sdvo_connector->bottom =
2416                         drm_property_create(dev, DRM_MODE_PROP_RANGE,
2417                                             "bottom_margin", 2);
2418                 if (!intel_sdvo_connector->bottom)
2419                         return false;
2420
2421                 intel_sdvo_connector->bottom->values[0] = 0;
2422                 intel_sdvo_connector->bottom->values[1] = data_value[0];
2423                 drm_connector_attach_property(connector,
2424                                               intel_sdvo_connector->bottom,
2425                                               intel_sdvo_connector->bottom_margin);
2426                 DRM_DEBUG_KMS("v_overscan: max %d, "
2427                               "default %d, current %d\n",
2428                               data_value[0], data_value[1], response);
2429         }
2430
2431         ENHANCEMENT(hpos, HPOS);
2432         ENHANCEMENT(vpos, VPOS);
2433         ENHANCEMENT(saturation, SATURATION);
2434         ENHANCEMENT(contrast, CONTRAST);
2435         ENHANCEMENT(hue, HUE);
2436         ENHANCEMENT(sharpness, SHARPNESS);
2437         ENHANCEMENT(brightness, BRIGHTNESS);
2438         ENHANCEMENT(flicker_filter, FLICKER_FILTER);
2439         ENHANCEMENT(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
2440         ENHANCEMENT(flicker_filter_2d, FLICKER_FILTER_2D);
2441         ENHANCEMENT(tv_chroma_filter, TV_CHROMA_FILTER);
2442         ENHANCEMENT(tv_luma_filter, TV_LUMA_FILTER);
2443
2444         if (enhancements.dot_crawl) {
2445                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_DOT_CRAWL, &response, 2))
2446                         return false;
2447
2448                 intel_sdvo_connector->max_dot_crawl = 1;
2449                 intel_sdvo_connector->cur_dot_crawl = response & 0x1;
2450                 intel_sdvo_connector->dot_crawl =
2451                         drm_property_create(dev, DRM_MODE_PROP_RANGE, "dot_crawl", 2);
2452                 if (!intel_sdvo_connector->dot_crawl)
2453                         return false;
2454
2455                 intel_sdvo_connector->dot_crawl->values[0] = 0;
2456                 intel_sdvo_connector->dot_crawl->values[1] = 1;
2457                 drm_connector_attach_property(connector,
2458                                               intel_sdvo_connector->dot_crawl,
2459                                               intel_sdvo_connector->cur_dot_crawl);
2460                 DRM_DEBUG_KMS("dot crawl: current %d\n", response);
2461         }
2462
2463         return true;
2464 }
2465
2466 static bool
2467 intel_sdvo_create_enhance_property_lvds(struct intel_sdvo *intel_sdvo,
2468                                         struct intel_sdvo_connector *intel_sdvo_connector,
2469                                         struct intel_sdvo_enhancements_reply enhancements)
2470 {
2471         struct drm_device *dev = intel_sdvo->base.enc.dev;
2472         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2473         uint16_t response, data_value[2];
2474
2475         ENHANCEMENT(brightness, BRIGHTNESS);
2476
2477         return true;
2478 }
2479 #undef ENHANCEMENT
2480
2481 static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
2482                                                struct intel_sdvo_connector *intel_sdvo_connector)
2483 {
2484         union {
2485                 struct intel_sdvo_enhancements_reply reply;
2486                 uint16_t response;
2487         } enhancements;
2488
2489         if (!intel_sdvo_get_value(intel_sdvo,
2490                                   SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
2491                                   &enhancements, sizeof(enhancements)))
2492                 return false;
2493
2494         if (enhancements.response == 0) {
2495                 DRM_DEBUG_KMS("No enhancement is supported\n");
2496                 return true;
2497         }
2498
2499         if (IS_TV(intel_sdvo_connector))
2500                 return intel_sdvo_create_enhance_property_tv(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2501         else if(IS_LVDS(intel_sdvo_connector))
2502                 return intel_sdvo_create_enhance_property_lvds(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2503         else
2504                 return true;
2505
2506 }
2507
2508 bool intel_sdvo_init(struct drm_device *dev, int sdvo_reg)
2509 {
2510         struct drm_i915_private *dev_priv = dev->dev_private;
2511         struct intel_encoder *intel_encoder;
2512         struct intel_sdvo *intel_sdvo;
2513         u8 ch[0x40];
2514         int i;
2515         u32 i2c_reg, ddc_reg, analog_ddc_reg;
2516
2517         intel_sdvo = kzalloc(sizeof(struct intel_sdvo), GFP_KERNEL);
2518         if (!intel_sdvo)
2519                 return false;
2520
2521         intel_sdvo->sdvo_reg = sdvo_reg;
2522
2523         intel_encoder = &intel_sdvo->base;
2524         intel_encoder->type = INTEL_OUTPUT_SDVO;
2525
2526         if (HAS_PCH_SPLIT(dev)) {
2527                 i2c_reg = PCH_GPIOE;
2528                 ddc_reg = PCH_GPIOE;
2529                 analog_ddc_reg = PCH_GPIOA;
2530         } else {
2531                 i2c_reg = GPIOE;
2532                 ddc_reg = GPIOE;
2533                 analog_ddc_reg = GPIOA;
2534         }
2535
2536         /* setup the DDC bus. */
2537         if (IS_SDVOB(sdvo_reg))
2538                 intel_encoder->i2c_bus = intel_i2c_create(dev, i2c_reg, "SDVOCTRL_E for SDVOB");
2539         else
2540                 intel_encoder->i2c_bus = intel_i2c_create(dev, i2c_reg, "SDVOCTRL_E for SDVOC");
2541
2542         if (!intel_encoder->i2c_bus)
2543                 goto err_inteloutput;
2544
2545         intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(dev, sdvo_reg);
2546
2547         /* Save the bit-banging i2c functionality for use by the DDC wrapper */
2548         intel_sdvo_i2c_bit_algo.functionality = intel_encoder->i2c_bus->algo->functionality;
2549
2550         /* Read the regs to test if we can talk to the device */
2551         for (i = 0; i < 0x40; i++) {
2552                 if (!intel_sdvo_read_byte(intel_sdvo, i, &ch[i])) {
2553                         DRM_DEBUG_KMS("No SDVO device found on SDVO%c\n",
2554                                       IS_SDVOB(sdvo_reg) ? 'B' : 'C');
2555                         goto err_i2c;
2556                 }
2557         }
2558
2559         /* setup the DDC bus. */
2560         if (IS_SDVOB(sdvo_reg)) {
2561                 intel_encoder->ddc_bus = intel_i2c_create(dev, ddc_reg, "SDVOB DDC BUS");
2562                 intel_sdvo->analog_ddc_bus = intel_i2c_create(dev, analog_ddc_reg,
2563                                                 "SDVOB/VGA DDC BUS");
2564                 dev_priv->hotplug_supported_mask |= SDVOB_HOTPLUG_INT_STATUS;
2565         } else {
2566                 intel_encoder->ddc_bus = intel_i2c_create(dev, ddc_reg, "SDVOC DDC BUS");
2567                 intel_sdvo->analog_ddc_bus = intel_i2c_create(dev, analog_ddc_reg,
2568                                                 "SDVOC/VGA DDC BUS");
2569                 dev_priv->hotplug_supported_mask |= SDVOC_HOTPLUG_INT_STATUS;
2570         }
2571         if (intel_encoder->ddc_bus == NULL || intel_sdvo->analog_ddc_bus == NULL)
2572                 goto err_i2c;
2573
2574         /* Wrap with our custom algo which switches to DDC mode */
2575         intel_encoder->ddc_bus->algo = &intel_sdvo_i2c_bit_algo;
2576
2577         /* encoder type will be decided later */
2578         drm_encoder_init(dev, &intel_encoder->enc, &intel_sdvo_enc_funcs, 0);
2579         drm_encoder_helper_add(&intel_encoder->enc, &intel_sdvo_helper_funcs);
2580
2581         /* In default case sdvo lvds is false */
2582         if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
2583                 goto err_enc;
2584
2585         if (intel_sdvo_output_setup(intel_sdvo,
2586                                     intel_sdvo->caps.output_flags) != true) {
2587                 DRM_DEBUG_KMS("SDVO output failed to setup on SDVO%c\n",
2588                               IS_SDVOB(sdvo_reg) ? 'B' : 'C');
2589                 goto err_enc;
2590         }
2591
2592         intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo, sdvo_reg);
2593
2594         /* Set the input timing to the screen. Assume always input 0. */
2595         if (!intel_sdvo_set_target_input(intel_sdvo))
2596                 goto err_enc;
2597
2598         if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
2599                                                     &intel_sdvo->pixel_clock_min,
2600                                                     &intel_sdvo->pixel_clock_max))
2601                 goto err_enc;
2602
2603         DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
2604                         "clock range %dMHz - %dMHz, "
2605                         "input 1: %c, input 2: %c, "
2606                         "output 1: %c, output 2: %c\n",
2607                         SDVO_NAME(intel_sdvo),
2608                         intel_sdvo->caps.vendor_id, intel_sdvo->caps.device_id,
2609                         intel_sdvo->caps.device_rev_id,
2610                         intel_sdvo->pixel_clock_min / 1000,
2611                         intel_sdvo->pixel_clock_max / 1000,
2612                         (intel_sdvo->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
2613                         (intel_sdvo->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
2614                         /* check currently supported outputs */
2615                         intel_sdvo->caps.output_flags &
2616                         (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
2617                         intel_sdvo->caps.output_flags &
2618                         (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
2619         return true;
2620
2621 err_enc:
2622         drm_encoder_cleanup(&intel_encoder->enc);
2623 err_i2c:
2624         if (intel_sdvo->analog_ddc_bus != NULL)
2625                 intel_i2c_destroy(intel_sdvo->analog_ddc_bus);
2626         if (intel_encoder->ddc_bus != NULL)
2627                 intel_i2c_destroy(intel_encoder->ddc_bus);
2628         if (intel_encoder->i2c_bus != NULL)
2629                 intel_i2c_destroy(intel_encoder->i2c_bus);
2630 err_inteloutput:
2631         kfree(intel_sdvo);
2632
2633         return false;
2634 }