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 <linux/export.h>
  32 #include "drmP.h"
  33 #include "drm.h"
  34 #include "drm_crtc.h"
  35 #include "drm_edid.h"
  36 #include "intel_drv.h"
  37 #include "i915_drm.h"
  38 #include "i915_drv.h"
  39 #include "intel_sdvo_regs.h"
  40
  41 #define SDVO_TMDS_MASK (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)
  42 #define SDVO_RGB_MASK  (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1)
  43 #define SDVO_LVDS_MASK (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1)
  44 #define SDVO_TV_MASK   (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_SVID0)
  45
  46 #define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK |\
  47                         SDVO_TV_MASK)
  48
  49 #define IS_TV(c)        (c->output_flag & SDVO_TV_MASK)
  50 #define IS_TMDS(c)      (c->output_flag & SDVO_TMDS_MASK)
  51 #define IS_LVDS(c)      (c->output_flag & SDVO_LVDS_MASK)
  52 #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
  53 #define IS_DIGITAL(c) (c->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK))
  54
  55
  56 static const char *tv_format_names[] = {
  57         "NTSC_M"   , "NTSC_J"  , "NTSC_443",
  58         "PAL_B"    , "PAL_D"   , "PAL_G"   ,
  59         "PAL_H"    , "PAL_I"   , "PAL_M"   ,
  60         "PAL_N"    , "PAL_NC"  , "PAL_60"  ,
  61         "SECAM_B"  , "SECAM_D" , "SECAM_G" ,
  62         "SECAM_K"  , "SECAM_K1", "SECAM_L" ,
  63         "SECAM_60"
  64 };
  65
  66 #define TV_FORMAT_NUM  (sizeof(tv_format_names) / sizeof(*tv_format_names))
  67
  68 struct intel_sdvo {
  69         struct intel_encoder base;
  70
  71         struct i2c_adapter *i2c;
  72         u8 slave_addr;
  73
  74         struct i2c_adapter ddc;
  75
  76         /* Register for the SDVO device: SDVOB or SDVOC */
  77         uint32_t sdvo_reg;
  78
  79         /* Active outputs controlled by this SDVO output */
  80         uint16_t controlled_output;
  81
  82         /*
  83          * Capabilities of the SDVO device returned by
  84          * i830_sdvo_get_capabilities()
  85          */
  86         struct intel_sdvo_caps caps;
  87
  88         /* Pixel clock limitations reported by the SDVO device, in kHz */
  89         int pixel_clock_min, pixel_clock_max;
  90
  91         /*
  92         * For multiple function SDVO device,
  93         * this is for current attached outputs.
  94         */
  95         uint16_t attached_output;
  96
  97         /*
  98          * Hotplug activation bits for this device
  99          */
 100         uint8_t hotplug_active[2];
 101
 102         /**
 103          * This is used to select the color range of RBG outputs in HDMI mode.
 104          * It is only valid when using TMDS encoding and 8 bit per color mode.
 105          */
 106         uint32_t color_range;
 107
 108         /**
 109          * This is set if we're going to treat the device as TV-out.
 110          *
 111          * While we have these nice friendly flags for output types that ought
 112          * to decide this for us, the S-Video output on our HDMI+S-Video card
 113          * shows up as RGB1 (VGA).
 114          */
 115         bool is_tv;
 116
 117         /* On different gens SDVOB is at different places. */
 118         bool is_sdvob;
 119
 120         /* This is for current tv format name */
 121         int tv_format_index;
 122
 123         /**
 124          * This is set if we treat the device as HDMI, instead of DVI.
 125          */
 126         bool is_hdmi;
 127         bool has_hdmi_monitor;
 128         bool has_hdmi_audio;
 129
 130         /**
 131          * This is set if we detect output of sdvo device as LVDS and
 132          * have a valid fixed mode to use with the panel.
 133          */
 134         bool is_lvds;
 135
 136         /**
 137          * This is sdvo fixed pannel mode pointer
 138          */
 139         struct drm_display_mode *sdvo_lvds_fixed_mode;
 140
 141         /* DDC bus used by this SDVO encoder */
 142         uint8_t ddc_bus;
 143
 144         /* Input timings for adjusted_mode */
 145         struct intel_sdvo_dtd input_dtd;
 146 };
 147
 148 struct intel_sdvo_connector {
 149         struct intel_connector base;
 150
 151         /* Mark the type of connector */
 152         uint16_t output_flag;
 153
 154         enum hdmi_force_audio force_audio;
 155
 156         /* This contains all current supported TV format */
 157         u8 tv_format_supported[TV_FORMAT_NUM];
 158         int   format_supported_num;
 159         struct drm_property *tv_format;
 160
 161         /* add the property for the SDVO-TV */
 162         struct drm_property *left;
 163         struct drm_property *right;
 164         struct drm_property *top;
 165         struct drm_property *bottom;
 166         struct drm_property *hpos;
 167         struct drm_property *vpos;
 168         struct drm_property *contrast;
 169         struct drm_property *saturation;
 170         struct drm_property *hue;
 171         struct drm_property *sharpness;
 172         struct drm_property *flicker_filter;
 173         struct drm_property *flicker_filter_adaptive;
 174         struct drm_property *flicker_filter_2d;
 175         struct drm_property *tv_chroma_filter;
 176         struct drm_property *tv_luma_filter;
 177         struct drm_property *dot_crawl;
 178
 179         /* add the property for the SDVO-TV/LVDS */
 180         struct drm_property *brightness;
 181
 182         /* Add variable to record current setting for the above property */
 183         u32     left_margin, right_margin, top_margin, bottom_margin;
 184
 185         /* this is to get the range of margin.*/
 186         u32     max_hscan,  max_vscan;
 187         u32     max_hpos, cur_hpos;
 188         u32     max_vpos, cur_vpos;
 189         u32     cur_brightness, max_brightness;
 190         u32     cur_contrast,   max_contrast;
 191         u32     cur_saturation, max_saturation;
 192         u32     cur_hue,        max_hue;
 193         u32     cur_sharpness,  max_sharpness;
 194         u32     cur_flicker_filter,             max_flicker_filter;
 195         u32     cur_flicker_filter_adaptive,    max_flicker_filter_adaptive;
 196         u32     cur_flicker_filter_2d,          max_flicker_filter_2d;
 197         u32     cur_tv_chroma_filter,   max_tv_chroma_filter;
 198         u32     cur_tv_luma_filter,     max_tv_luma_filter;
 199         u32     cur_dot_crawl,  max_dot_crawl;
 200 };
 201
 202 static struct intel_sdvo *to_intel_sdvo(struct drm_encoder *encoder)
 203 {
 204         return container_of(encoder, struct intel_sdvo, base.base);
 205 }
 206
 207 static struct intel_sdvo *intel_attached_sdvo(struct drm_connector *connector)
 208 {
 209         return container_of(intel_attached_encoder(connector),
 210                             struct intel_sdvo, base);
 211 }
 212
 213 static struct intel_sdvo_connector *to_intel_sdvo_connector(struct drm_connector *connector)
 214 {
 215         return container_of(to_intel_connector(connector), struct intel_sdvo_connector, base);
 216 }
 217
 218 static bool
 219 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags);
 220 static bool
 221 intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
 222                               struct intel_sdvo_connector *intel_sdvo_connector,
 223                               int type);
 224 static bool
 225 intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
 226                                    struct intel_sdvo_connector *intel_sdvo_connector);
 227
 228 /**
 229  * Writes the SDVOB or SDVOC with the given value, but always writes both
 230  * SDVOB and SDVOC to work around apparent hardware issues (according to
 231  * comments in the BIOS).
 232  */
 233 static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val)
 234 {
 235         struct drm_device *dev = intel_sdvo->base.base.dev;
 236         struct drm_i915_private *dev_priv = dev->dev_private;
 237         u32 bval = val, cval = val;
 238         int i;
 239
 240         if (intel_sdvo->sdvo_reg == PCH_SDVOB) {
 241                 I915_WRITE(intel_sdvo->sdvo_reg, val);
 242                 I915_READ(intel_sdvo->sdvo_reg);
 243                 return;
 244         }
 245
 246         if (intel_sdvo->sdvo_reg == SDVOB) {
 247                 cval = I915_READ(SDVOC);
 248         } else {
 249                 bval = I915_READ(SDVOB);
 250         }
 251         /*
 252          * Write the registers twice for luck. Sometimes,
 253          * writing them only once doesn't appear to 'stick'.
 254          * The BIOS does this too. Yay, magic
 255          */
 256         for (i = 0; i < 2; i++)
 257         {
 258                 I915_WRITE(SDVOB, bval);
 259                 I915_READ(SDVOB);
 260                 I915_WRITE(SDVOC, cval);
 261                 I915_READ(SDVOC);
 262         }
 263 }
 264
 265 static bool intel_sdvo_read_byte(struct intel_sdvo *intel_sdvo, u8 addr, u8 *ch)
 266 {
 267         struct i2c_msg msgs[] = {
 268                 {
 269                         .addr = intel_sdvo->slave_addr,
 270                         .flags = 0,
 271                         .len = 1,
 272                         .buf = &addr,
 273                 },
 274                 {
 275                         .addr = intel_sdvo->slave_addr,
 276                         .flags = I2C_M_RD,
 277                         .len = 1,
 278                         .buf = ch,
 279                 }
 280         };
 281         int ret;
 282
 283         if ((ret = i2c_transfer(intel_sdvo->i2c, msgs, 2)) == 2)
 284                 return true;
 285
 286         DRM_DEBUG_KMS("i2c transfer returned %d\n", ret);
 287         return false;
 288 }
 289
 290 #define SDVO_CMD_NAME_ENTRY(cmd) {cmd, #cmd}
 291 /** Mapping of command numbers to names, for debug output */
 292 static const struct _sdvo_cmd_name {
 293         u8 cmd;
 294         const char *name;
 295 } sdvo_cmd_names[] = {
 296         SDVO_CMD_NAME_ENTRY(SDVO_CMD_RESET),
 297         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DEVICE_CAPS),
 298         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FIRMWARE_REV),
 299         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TRAINED_INPUTS),
 300         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_OUTPUTS),
 301         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_OUTPUTS),
 302         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_IN_OUT_MAP),
 303         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_IN_OUT_MAP),
 304         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ATTACHED_DISPLAYS),
 305         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HOT_PLUG_SUPPORT),
 306         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_HOT_PLUG),
 307         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_HOT_PLUG),
 308         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INTERRUPT_EVENT_SOURCE),
 309         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_INPUT),
 310         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_OUTPUT),
 311         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART1),
 312         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART2),
 313         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 314         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART2),
 315         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 316         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART1),
 317         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART2),
 318         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART1),
 319         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART2),
 320         SDVO_CMD_NAME_ENTRY(SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING),
 321         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1),
 322         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2),
 323         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE),
 324         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_PIXEL_CLOCK_RANGE),
 325         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_CLOCK_RATE_MULTS),
 326         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CLOCK_RATE_MULT),
 327         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CLOCK_RATE_MULT),
 328         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_TV_FORMATS),
 329         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_FORMAT),
 330         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_FORMAT),
 331         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_POWER_STATES),
 332         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_POWER_STATE),
 333         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODER_POWER_STATE),
 334         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DISPLAY_POWER_STATE),
 335         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTROL_BUS_SWITCH),
 336         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT),
 337         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SCALED_HDTV_RESOLUTION_SUPPORT),
 338         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS),
 339
 340         /* Add the op code for SDVO enhancements */
 341         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HPOS),
 342         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HPOS),
 343         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HPOS),
 344         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_VPOS),
 345         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_VPOS),
 346         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_VPOS),
 347         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SATURATION),
 348         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SATURATION),
 349         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SATURATION),
 350         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HUE),
 351         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HUE),
 352         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HUE),
 353         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_CONTRAST),
 354         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CONTRAST),
 355         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTRAST),
 356         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_BRIGHTNESS),
 357         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_BRIGHTNESS),
 358         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_BRIGHTNESS),
 359         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_H),
 360         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_H),
 361         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_H),
 362         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_V),
 363         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_V),
 364         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_V),
 365         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER),
 366         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER),
 367         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER),
 368         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_ADAPTIVE),
 369         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_ADAPTIVE),
 370         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_ADAPTIVE),
 371         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_2D),
 372         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_2D),
 373         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_2D),
 374         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SHARPNESS),
 375         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SHARPNESS),
 376         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SHARPNESS),
 377         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DOT_CRAWL),
 378         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DOT_CRAWL),
 379         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_CHROMA_FILTER),
 380         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_CHROMA_FILTER),
 381         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_CHROMA_FILTER),
 382         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_LUMA_FILTER),
 383         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_LUMA_FILTER),
 384         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_LUMA_FILTER),
 385
 386         /* HDMI op code */
 387         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPP_ENCODE),
 388         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ENCODE),
 389         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODE),
 390         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_PIXEL_REPLI),
 391         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PIXEL_REPLI),
 392         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY_CAP),
 393         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_COLORIMETRY),
 394         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY),
 395         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_ENCRYPT_PREFER),
 396         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_AUDIO_STAT),
 397         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_STAT),
 398         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INDEX),
 399         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_INDEX),
 400         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INFO),
 401         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_AV_SPLIT),
 402         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_AV_SPLIT),
 403         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_TXRATE),
 404         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_TXRATE),
 405         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_DATA),
 406         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_DATA),
 407 };
 408
 409 #define SDVO_NAME(svdo) ((svdo)->is_sdvob ? "SDVOB" : "SDVOC")
 410
 411 static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd,
 412                                    const void *args, int args_len)
 413 {
 414         int i;
 415
 416         DRM_DEBUG_KMS("%s: W: %02X ",
 417                                 SDVO_NAME(intel_sdvo), cmd);
 418         for (i = 0; i < args_len; i++)
 419                 DRM_LOG_KMS("%02X ", ((u8 *)args)[i]);
 420         for (; i < 8; i++)
 421                 DRM_LOG_KMS("   ");
 422         for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) {
 423                 if (cmd == sdvo_cmd_names[i].cmd) {
 424                         DRM_LOG_KMS("(%s)", sdvo_cmd_names[i].name);
 425                         break;
 426                 }
 427         }
 428         if (i == ARRAY_SIZE(sdvo_cmd_names))
 429                 DRM_LOG_KMS("(%02X)", cmd);
 430         DRM_LOG_KMS("\n");
 431 }
 432
 433 static const char *cmd_status_names[] = {
 434         "Power on",
 435         "Success",
 436         "Not supported",
 437         "Invalid arg",
 438         "Pending",
 439         "Target not specified",
 440         "Scaling not supported"
 441 };
 442
 443 static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
 444                                  const void *args, int args_len)
 445 {
 446         u8 buf[args_len*2 + 2], status;
 447         struct i2c_msg msgs[args_len + 3];
 448         int i, ret;
 449
 450         intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
 451
 452         for (i = 0; i < args_len; i++) {
 453                 msgs[i].addr = intel_sdvo->slave_addr;
 454                 msgs[i].flags = 0;
 455                 msgs[i].len = 2;
 456                 msgs[i].buf = buf + 2 *i;
 457                 buf[2*i + 0] = SDVO_I2C_ARG_0 - i;
 458                 buf[2*i + 1] = ((u8*)args)[i];
 459         }
 460         msgs[i].addr = intel_sdvo->slave_addr;
 461         msgs[i].flags = 0;
 462         msgs[i].len = 2;
 463         msgs[i].buf = buf + 2*i;
 464         buf[2*i + 0] = SDVO_I2C_OPCODE;
 465         buf[2*i + 1] = cmd;
 466
 467         /* the following two are to read the response */
 468         status = SDVO_I2C_CMD_STATUS;
 469         msgs[i+1].addr = intel_sdvo->slave_addr;
 470         msgs[i+1].flags = 0;
 471         msgs[i+1].len = 1;
 472         msgs[i+1].buf = &status;
 473
 474         msgs[i+2].addr = intel_sdvo->slave_addr;
 475         msgs[i+2].flags = I2C_M_RD;
 476         msgs[i+2].len = 1;
 477         msgs[i+2].buf = &status;
 478
 479         ret = i2c_transfer(intel_sdvo->i2c, msgs, i+3);
 480         if (ret < 0) {
 481                 DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
 482                 return false;
 483         }
 484         if (ret != i+3) {
 485                 /* failure in I2C transfer */
 486                 DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3);
 487                 return false;
 488         }
 489
 490         return true;
 491 }
 492
 493 static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
 494                                      void *response, int response_len)
 495 {
 496         u8 retry = 5;
 497         u8 status;
 498         int i;
 499
 500         DRM_DEBUG_KMS("%s: R: ", SDVO_NAME(intel_sdvo));
 501
 502         /*
 503          * The documentation states that all commands will be
 504          * processed within 15µs, and that we need only poll
 505          * the status byte a maximum of 3 times in order for the
 506          * command to be complete.
 507          *
 508          * Check 5 times in case the hardware failed to read the docs.
 509          */
 510         if (!intel_sdvo_read_byte(intel_sdvo,
 511                                   SDVO_I2C_CMD_STATUS,
 512                                   &status))
 513                 goto log_fail;
 514
 515         while (status == SDVO_CMD_STATUS_PENDING && retry--) {
 516                 udelay(15);
 517                 if (!intel_sdvo_read_byte(intel_sdvo,
 518                                           SDVO_I2C_CMD_STATUS,
 519                                           &status))
 520                         goto log_fail;
 521         }
 522
 523         if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
 524                 DRM_LOG_KMS("(%s)", cmd_status_names[status]);
 525         else
 526                 DRM_LOG_KMS("(??? %d)", status);
 527
 528         if (status != SDVO_CMD_STATUS_SUCCESS)
 529                 goto log_fail;
 530
 531         /* Read the command response */
 532         for (i = 0; i < response_len; i++) {
 533                 if (!intel_sdvo_read_byte(intel_sdvo,
 534                                           SDVO_I2C_RETURN_0 + i,
 535                                           &((u8 *)response)[i]))
 536                         goto log_fail;
 537                 DRM_LOG_KMS(" %02X", ((u8 *)response)[i]);
 538         }
 539         DRM_LOG_KMS("\n");
 540         return true;
 541
 542 log_fail:
 543         DRM_LOG_KMS("... failed\n");
 544         return false;
 545 }
 546
 547 static int intel_sdvo_get_pixel_multiplier(struct drm_display_mode *mode)
 548 {
 549         if (mode->clock >= 100000)
 550                 return 1;
 551         else if (mode->clock >= 50000)
 552                 return 2;
 553         else
 554                 return 4;
 555 }
 556
 557 static bool intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo,
 558                                               u8 ddc_bus)
 559 {
 560         /* This must be the immediately preceding write before the i2c xfer */
 561         return intel_sdvo_write_cmd(intel_sdvo,
 562                                     SDVO_CMD_SET_CONTROL_BUS_SWITCH,
 563                                     &ddc_bus, 1);
 564 }
 565
 566 static bool intel_sdvo_set_value(struct intel_sdvo *intel_sdvo, u8 cmd, const void *data, int len)
 567 {
 568         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, data, len))
 569                 return false;
 570
 571         return intel_sdvo_read_response(intel_sdvo, NULL, 0);
 572 }
 573
 574 static bool
 575 intel_sdvo_get_value(struct intel_sdvo *intel_sdvo, u8 cmd, void *value, int len)
 576 {
 577         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, NULL, 0))
 578                 return false;
 579
 580         return intel_sdvo_read_response(intel_sdvo, value, len);
 581 }
 582
 583 static bool intel_sdvo_set_target_input(struct intel_sdvo *intel_sdvo)
 584 {
 585         struct intel_sdvo_set_target_input_args targets = {0};
 586         return intel_sdvo_set_value(intel_sdvo,
 587                                     SDVO_CMD_SET_TARGET_INPUT,
 588                                     &targets, sizeof(targets));
 589 }
 590
 591 /**
 592  * Return whether each input is trained.
 593  *
 594  * This function is making an assumption about the layout of the response,
 595  * which should be checked against the docs.
 596  */
 597 static bool intel_sdvo_get_trained_inputs(struct intel_sdvo *intel_sdvo, bool *input_1, bool *input_2)
 598 {
 599         struct intel_sdvo_get_trained_inputs_response response;
 600
 601         BUILD_BUG_ON(sizeof(response) != 1);
 602         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_TRAINED_INPUTS,
 603                                   &response, sizeof(response)))
 604                 return false;
 605
 606         *input_1 = response.input0_trained;
 607         *input_2 = response.input1_trained;
 608         return true;
 609 }
 610
 611 static bool intel_sdvo_set_active_outputs(struct intel_sdvo *intel_sdvo,
 612                                           u16 outputs)
 613 {
 614         return intel_sdvo_set_value(intel_sdvo,
 615                                     SDVO_CMD_SET_ACTIVE_OUTPUTS,
 616                                     &outputs, sizeof(outputs));
 617 }
 618
 619 static bool intel_sdvo_set_encoder_power_state(struct intel_sdvo *intel_sdvo,
 620                                                int mode)
 621 {
 622         u8 state = SDVO_ENCODER_STATE_ON;
 623
 624         switch (mode) {
 625         case DRM_MODE_DPMS_ON:
 626                 state = SDVO_ENCODER_STATE_ON;
 627                 break;
 628         case DRM_MODE_DPMS_STANDBY:
 629                 state = SDVO_ENCODER_STATE_STANDBY;
 630                 break;
 631         case DRM_MODE_DPMS_SUSPEND:
 632                 state = SDVO_ENCODER_STATE_SUSPEND;
 633                 break;
 634         case DRM_MODE_DPMS_OFF:
 635                 state = SDVO_ENCODER_STATE_OFF;
 636                 break;
 637         }
 638
 639         return intel_sdvo_set_value(intel_sdvo,
 640                                     SDVO_CMD_SET_ENCODER_POWER_STATE, &state, sizeof(state));
 641 }
 642
 643 static bool intel_sdvo_get_input_pixel_clock_range(struct intel_sdvo *intel_sdvo,
 644                                                    int *clock_min,
 645                                                    int *clock_max)
 646 {
 647         struct intel_sdvo_pixel_clock_range clocks;
 648
 649         BUILD_BUG_ON(sizeof(clocks) != 4);
 650         if (!intel_sdvo_get_value(intel_sdvo,
 651                                   SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
 652                                   &clocks, sizeof(clocks)))
 653                 return false;
 654
 655         /* Convert the values from units of 10 kHz to kHz. */
 656         *clock_min = clocks.min * 10;
 657         *clock_max = clocks.max * 10;
 658         return true;
 659 }
 660
 661 static bool intel_sdvo_set_target_output(struct intel_sdvo *intel_sdvo,
 662                                          u16 outputs)
 663 {
 664         return intel_sdvo_set_value(intel_sdvo,
 665                                     SDVO_CMD_SET_TARGET_OUTPUT,
 666                                     &outputs, sizeof(outputs));
 667 }
 668
 669 static bool intel_sdvo_set_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 670                                   struct intel_sdvo_dtd *dtd)
 671 {
 672         return intel_sdvo_set_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 673                 intel_sdvo_set_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 674 }
 675
 676 static bool intel_sdvo_set_input_timing(struct intel_sdvo *intel_sdvo,
 677                                          struct intel_sdvo_dtd *dtd)
 678 {
 679         return intel_sdvo_set_timing(intel_sdvo,
 680                                      SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd);
 681 }
 682
 683 static bool intel_sdvo_set_output_timing(struct intel_sdvo *intel_sdvo,
 684                                          struct intel_sdvo_dtd *dtd)
 685 {
 686         return intel_sdvo_set_timing(intel_sdvo,
 687                                      SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd);
 688 }
 689
 690 static bool
 691 intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 692                                          uint16_t clock,
 693                                          uint16_t width,
 694                                          uint16_t height)
 695 {
 696         struct intel_sdvo_preferred_input_timing_args args;
 697
 698         memset(&args, 0, sizeof(args));
 699         args.clock = clock;
 700         args.width = width;
 701         args.height = height;
 702         args.interlace = 0;
 703
 704         if (intel_sdvo->is_lvds &&
 705            (intel_sdvo->sdvo_lvds_fixed_mode->hdisplay != width ||
 706             intel_sdvo->sdvo_lvds_fixed_mode->vdisplay != height))
 707                 args.scaled = 1;
 708
 709         return intel_sdvo_set_value(intel_sdvo,
 710                                     SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
 711                                     &args, sizeof(args));
 712 }
 713
 714 static bool intel_sdvo_get_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 715                                                   struct intel_sdvo_dtd *dtd)
 716 {
 717         BUILD_BUG_ON(sizeof(dtd->part1) != 8);
 718         BUILD_BUG_ON(sizeof(dtd->part2) != 8);
 719         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
 720                                     &dtd->part1, sizeof(dtd->part1)) &&
 721                 intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
 722                                      &dtd->part2, sizeof(dtd->part2));
 723 }
 724
 725 static bool intel_sdvo_set_clock_rate_mult(struct intel_sdvo *intel_sdvo, u8 val)
 726 {
 727         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
 728 }
 729
 730 static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
 731                                          const struct drm_display_mode *mode)
 732 {
 733         uint16_t width, height;
 734         uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len;
 735         uint16_t h_sync_offset, v_sync_offset;
 736
 737         width = mode->crtc_hdisplay;
 738         height = mode->crtc_vdisplay;
 739
 740         /* do some mode translations */
 741         h_blank_len = mode->crtc_hblank_end - mode->crtc_hblank_start;
 742         h_sync_len = mode->crtc_hsync_end - mode->crtc_hsync_start;
 743
 744         v_blank_len = mode->crtc_vblank_end - mode->crtc_vblank_start;
 745         v_sync_len = mode->crtc_vsync_end - mode->crtc_vsync_start;
 746
 747         h_sync_offset = mode->crtc_hsync_start - mode->crtc_hblank_start;
 748         v_sync_offset = mode->crtc_vsync_start - mode->crtc_vblank_start;
 749
 750         dtd->part1.clock = mode->clock / 10;
 751         dtd->part1.h_active = width & 0xff;
 752         dtd->part1.h_blank = h_blank_len & 0xff;
 753         dtd->part1.h_high = (((width >> 8) & 0xf) << 4) |
 754                 ((h_blank_len >> 8) & 0xf);
 755         dtd->part1.v_active = height & 0xff;
 756         dtd->part1.v_blank = v_blank_len & 0xff;
 757         dtd->part1.v_high = (((height >> 8) & 0xf) << 4) |
 758                 ((v_blank_len >> 8) & 0xf);
 759
 760         dtd->part2.h_sync_off = h_sync_offset & 0xff;
 761         dtd->part2.h_sync_width = h_sync_len & 0xff;
 762         dtd->part2.v_sync_off_width = (v_sync_offset & 0xf) << 4 |
 763                 (v_sync_len & 0xf);
 764         dtd->part2.sync_off_width_high = ((h_sync_offset & 0x300) >> 2) |
 765                 ((h_sync_len & 0x300) >> 4) | ((v_sync_offset & 0x30) >> 2) |
 766                 ((v_sync_len & 0x30) >> 4);
 767
 768         dtd->part2.dtd_flags = 0x18;
 769         if (mode->flags & DRM_MODE_FLAG_PHSYNC)
 770                 dtd->part2.dtd_flags |= 0x2;
 771         if (mode->flags & DRM_MODE_FLAG_PVSYNC)
 772                 dtd->part2.dtd_flags |= 0x4;
 773
 774         dtd->part2.sdvo_flags = 0;
 775         dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
 776         dtd->part2.reserved = 0;
 777 }
 778
 779 static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode,
 780                                          const struct intel_sdvo_dtd *dtd)
 781 {
 782         mode->hdisplay = dtd->part1.h_active;
 783         mode->hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
 784         mode->hsync_start = mode->hdisplay + dtd->part2.h_sync_off;
 785         mode->hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
 786         mode->hsync_end = mode->hsync_start + dtd->part2.h_sync_width;
 787         mode->hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
 788         mode->htotal = mode->hdisplay + dtd->part1.h_blank;
 789         mode->htotal += (dtd->part1.h_high & 0xf) << 8;
 790
 791         mode->vdisplay = dtd->part1.v_active;
 792         mode->vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
 793         mode->vsync_start = mode->vdisplay;
 794         mode->vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
 795         mode->vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
 796         mode->vsync_start += dtd->part2.v_sync_off_high & 0xc0;
 797         mode->vsync_end = mode->vsync_start +
 798                 (dtd->part2.v_sync_off_width & 0xf);
 799         mode->vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
 800         mode->vtotal = mode->vdisplay + dtd->part1.v_blank;
 801         mode->vtotal += (dtd->part1.v_high & 0xf) << 8;
 802
 803         mode->clock = dtd->part1.clock * 10;
 804
 805         mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
 806         if (dtd->part2.dtd_flags & 0x2)
 807                 mode->flags |= DRM_MODE_FLAG_PHSYNC;
 808         if (dtd->part2.dtd_flags & 0x4)
 809                 mode->flags |= DRM_MODE_FLAG_PVSYNC;
 810 }
 811
 812 static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo)
 813 {
 814         struct intel_sdvo_encode encode;
 815
 816         BUILD_BUG_ON(sizeof(encode) != 2);
 817         return intel_sdvo_get_value(intel_sdvo,
 818                                   SDVO_CMD_GET_SUPP_ENCODE,
 819                                   &encode, sizeof(encode));
 820 }
 821
 822 static bool intel_sdvo_set_encode(struct intel_sdvo *intel_sdvo,
 823                                   uint8_t mode)
 824 {
 825         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_ENCODE, &mode, 1);
 826 }
 827
 828 static bool intel_sdvo_set_colorimetry(struct intel_sdvo *intel_sdvo,
 829                                        uint8_t mode)
 830 {
 831         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
 832 }
 833
 834 #if 0
 835 static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
 836 {
 837         int i, j;
 838         uint8_t set_buf_index[2];
 839         uint8_t av_split;
 840         uint8_t buf_size;
 841         uint8_t buf[48];
 842         uint8_t *pos;
 843
 844         intel_sdvo_get_value(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, &av_split, 1);
 845
 846         for (i = 0; i <= av_split; i++) {
 847                 set_buf_index[0] = i; set_buf_index[1] = 0;
 848                 intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX,
 849                                      set_buf_index, 2);
 850                 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
 851                 intel_sdvo_read_response(encoder, &buf_size, 1);
 852
 853                 pos = buf;
 854                 for (j = 0; j <= buf_size; j += 8) {
 855                         intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA,
 856                                              NULL, 0);
 857                         intel_sdvo_read_response(encoder, pos, 8);
 858                         pos += 8;
 859                 }
 860         }
 861 }
 862 #endif
 863
 864 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
 865 {
 866         struct dip_infoframe avi_if = {
 867                 .type = DIP_TYPE_AVI,
 868                 .ver = DIP_VERSION_AVI,
 869                 .len = DIP_LEN_AVI,
 870         };
 871         uint8_t tx_rate = SDVO_HBUF_TX_VSYNC;
 872         uint8_t set_buf_index[2] = { 1, 0 };
 873         uint64_t *data = (uint64_t *)&avi_if;
 874         unsigned i;
 875
 876         intel_dip_infoframe_csum(&avi_if);
 877
 878         if (!intel_sdvo_set_value(intel_sdvo,
 879                                   SDVO_CMD_SET_HBUF_INDEX,
 880                                   set_buf_index, 2))
 881                 return false;
 882
 883         for (i = 0; i < sizeof(avi_if); i += 8) {
 884                 if (!intel_sdvo_set_value(intel_sdvo,
 885                                           SDVO_CMD_SET_HBUF_DATA,
 886                                           data, 8))
 887                         return false;
 888                 data++;
 889         }
 890
 891         return intel_sdvo_set_value(intel_sdvo,
 892                                     SDVO_CMD_SET_HBUF_TXRATE,
 893                                     &tx_rate, 1);
 894 }
 895
 896 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
 897 {
 898         struct intel_sdvo_tv_format format;
 899         uint32_t format_map;
 900
 901         format_map = 1 << intel_sdvo->tv_format_index;
 902         memset(&format, 0, sizeof(format));
 903         memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map)));
 904
 905         BUILD_BUG_ON(sizeof(format) != 6);
 906         return intel_sdvo_set_value(intel_sdvo,
 907                                     SDVO_CMD_SET_TV_FORMAT,
 908                                     &format, sizeof(format));
 909 }
 910
 911 static bool
 912 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
 913                                         struct drm_display_mode *mode)
 914 {
 915         struct intel_sdvo_dtd output_dtd;
 916
 917         if (!intel_sdvo_set_target_output(intel_sdvo,
 918                                           intel_sdvo->attached_output))
 919                 return false;
 920
 921         intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
 922         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
 923                 return false;
 924
 925         return true;
 926 }
 927
 928 static bool
 929 intel_sdvo_set_input_timings_for_mode(struct intel_sdvo *intel_sdvo,
 930                                         struct drm_display_mode *mode,
 931                                         struct drm_display_mode *adjusted_mode)
 932 {
 933         /* Reset the input timing to the screen. Assume always input 0. */
 934         if (!intel_sdvo_set_target_input(intel_sdvo))
 935                 return false;
 936
 937         if (!intel_sdvo_create_preferred_input_timing(intel_sdvo,
 938                                                       mode->clock / 10,
 939                                                       mode->hdisplay,
 940                                                       mode->vdisplay))
 941                 return false;
 942
 943         if (!intel_sdvo_get_preferred_input_timing(intel_sdvo,
 944                                                    &intel_sdvo->input_dtd))
 945                 return false;
 946
 947         intel_sdvo_get_mode_from_dtd(adjusted_mode, &intel_sdvo->input_dtd);
 948
 949         return true;
 950 }
 951
 952 static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
 953                                   struct drm_display_mode *mode,
 954                                   struct drm_display_mode *adjusted_mode)
 955 {
 956         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
 957         int multiplier;
 958
 959         /* We need to construct preferred input timings based on our
 960          * output timings.  To do that, we have to set the output
 961          * timings, even though this isn't really the right place in
 962          * the sequence to do it. Oh well.
 963          */
 964         if (intel_sdvo->is_tv) {
 965                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
 966                         return false;
 967
 968                 (void) intel_sdvo_set_input_timings_for_mode(intel_sdvo,
 969                                                              mode,
 970                                                              adjusted_mode);
 971         } else if (intel_sdvo->is_lvds) {
 972                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
 973                                                              intel_sdvo->sdvo_lvds_fixed_mode))
 974                         return false;
 975
 976                 (void) intel_sdvo_set_input_timings_for_mode(intel_sdvo,
 977                                                              mode,
 978                                                              adjusted_mode);
 979         }
 980
 981         /* Make the CRTC code factor in the SDVO pixel multiplier.  The
 982          * SDVO device will factor out the multiplier during mode_set.
 983          */
 984         multiplier = intel_sdvo_get_pixel_multiplier(adjusted_mode);
 985         intel_mode_set_pixel_multiplier(adjusted_mode, multiplier);
 986
 987         return true;
 988 }
 989
 990 static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 991                                 struct drm_display_mode *mode,
 992                                 struct drm_display_mode *adjusted_mode)
 993 {
 994         struct drm_device *dev = encoder->dev;
 995         struct drm_i915_private *dev_priv = dev->dev_private;
 996         struct drm_crtc *crtc = encoder->crtc;
 997         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 998         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
 999         u32 sdvox;
1000         struct intel_sdvo_in_out_map in_out;
1001         struct intel_sdvo_dtd input_dtd;
1002         int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
1003         int rate;
1004
1005         if (!mode)
1006                 return;
1007
1008         /* First, set the input mapping for the first input to our controlled
1009          * output. This is only correct if we're a single-input device, in
1010          * which case the first input is the output from the appropriate SDVO
1011          * channel on the motherboard.  In a two-input device, the first input
1012          * will be SDVOB and the second SDVOC.
1013          */
1014         in_out.in0 = intel_sdvo->attached_output;
1015         in_out.in1 = 0;
1016
1017         intel_sdvo_set_value(intel_sdvo,
1018                              SDVO_CMD_SET_IN_OUT_MAP,
1019                              &in_out, sizeof(in_out));
1020
1021         /* Set the output timings to the screen */
1022         if (!intel_sdvo_set_target_output(intel_sdvo,
1023                                           intel_sdvo->attached_output))
1024                 return;
1025
1026         /* We have tried to get input timing in mode_fixup, and filled into
1027          * adjusted_mode.
1028          */
1029         if (intel_sdvo->is_tv || intel_sdvo->is_lvds) {
1030                 input_dtd = intel_sdvo->input_dtd;
1031         } else {
1032                 /* Set the output timing to the screen */
1033                 if (!intel_sdvo_set_target_output(intel_sdvo,
1034                                                   intel_sdvo->attached_output))
1035                         return;
1036
1037                 intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
1038                 (void) intel_sdvo_set_output_timing(intel_sdvo, &input_dtd);
1039         }
1040
1041         /* Set the input timing to the screen. Assume always input 0. */
1042         if (!intel_sdvo_set_target_input(intel_sdvo))
1043                 return;
1044
1045         if (intel_sdvo->has_hdmi_monitor) {
1046                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI);
1047                 intel_sdvo_set_colorimetry(intel_sdvo,
1048                                            SDVO_COLORIMETRY_RGB256);
1049                 intel_sdvo_set_avi_infoframe(intel_sdvo);
1050         } else
1051                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);
1052
1053         if (intel_sdvo->is_tv &&
1054             !intel_sdvo_set_tv_format(intel_sdvo))
1055                 return;
1056
1057         (void) intel_sdvo_set_input_timing(intel_sdvo, &input_dtd);
1058
1059         switch (pixel_multiplier) {
1060         default:
1061         case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break;
1062         case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break;
1063         case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break;
1064         }
1065         if (!intel_sdvo_set_clock_rate_mult(intel_sdvo, rate))
1066                 return;
1067
1068         /* Set the SDVO control regs. */
1069         if (INTEL_INFO(dev)->gen >= 4) {
1070                 /* The real mode polarity is set by the SDVO commands, using
1071                  * struct intel_sdvo_dtd. */
1072                 sdvox = SDVO_VSYNC_ACTIVE_HIGH | SDVO_HSYNC_ACTIVE_HIGH;
1073                 if (intel_sdvo->is_hdmi)
1074                         sdvox |= intel_sdvo->color_range;
1075                 if (INTEL_INFO(dev)->gen < 5)
1076                         sdvox |= SDVO_BORDER_ENABLE;
1077         } else {
1078                 sdvox = I915_READ(intel_sdvo->sdvo_reg);
1079                 switch (intel_sdvo->sdvo_reg) {
1080                 case SDVOB:
1081                         sdvox &= SDVOB_PRESERVE_MASK;
1082                         break;
1083                 case SDVOC:
1084                         sdvox &= SDVOC_PRESERVE_MASK;
1085                         break;
1086                 }
1087                 sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
1088         }
1089
1090         if (INTEL_PCH_TYPE(dev) >= PCH_CPT)
1091                 sdvox |= TRANSCODER_CPT(intel_crtc->pipe);
1092         else
1093                 sdvox |= TRANSCODER(intel_crtc->pipe);
1094
1095         if (intel_sdvo->has_hdmi_audio)
1096                 sdvox |= SDVO_AUDIO_ENABLE;
1097
1098         if (INTEL_INFO(dev)->gen >= 4) {
1099                 /* done in crtc_mode_set as the dpll_md reg must be written early */
1100         } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
1101                 /* done in crtc_mode_set as it lives inside the dpll register */
1102         } else {
1103                 sdvox |= (pixel_multiplier - 1) << SDVO_PORT_MULTIPLY_SHIFT;
1104         }
1105
1106         if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL &&
1107             INTEL_INFO(dev)->gen < 5)
1108                 sdvox |= SDVO_STALL_SELECT;
1109         intel_sdvo_write_sdvox(intel_sdvo, sdvox);
1110 }
1111
1112 static void intel_sdvo_dpms(struct drm_encoder *encoder, int mode)
1113 {
1114         struct drm_device *dev = encoder->dev;
1115         struct drm_i915_private *dev_priv = dev->dev_private;
1116         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
1117         struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
1118         u32 temp;
1119
1120         if (mode != DRM_MODE_DPMS_ON) {
1121                 intel_sdvo_set_active_outputs(intel_sdvo, 0);
1122                 if (0)
1123                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1124
1125                 if (mode == DRM_MODE_DPMS_OFF) {
1126                         temp = I915_READ(intel_sdvo->sdvo_reg);
1127                         if ((temp & SDVO_ENABLE) != 0) {
1128                                 intel_sdvo_write_sdvox(intel_sdvo, temp & ~SDVO_ENABLE);
1129                         }
1130                 }
1131         } else {
1132                 bool input1, input2;
1133                 int i;
1134                 u8 status;
1135
1136                 temp = I915_READ(intel_sdvo->sdvo_reg);
1137                 if ((temp & SDVO_ENABLE) == 0)
1138                         intel_sdvo_write_sdvox(intel_sdvo, temp | SDVO_ENABLE);
1139                 for (i = 0; i < 2; i++)
1140                         intel_wait_for_vblank(dev, intel_crtc->pipe);
1141
1142                 status = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2);
1143                 /* Warn if the device reported failure to sync.
1144                  * A lot of SDVO devices fail to notify of sync, but it's
1145                  * a given it the status is a success, we succeeded.
1146                  */
1147                 if (status == SDVO_CMD_STATUS_SUCCESS && !input1) {
1148                         DRM_DEBUG_KMS("First %s output reported failure to "
1149                                         "sync\n", SDVO_NAME(intel_sdvo));
1150                 }
1151
1152                 if (0)
1153                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1154                 intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1155         }
1156         return;
1157 }
1158
1159 static int intel_sdvo_mode_valid(struct drm_connector *connector,
1160                                  struct drm_display_mode *mode)
1161 {
1162         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1163
1164         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
1165                 return MODE_NO_DBLESCAN;
1166
1167         if (intel_sdvo->pixel_clock_min > mode->clock)
1168                 return MODE_CLOCK_LOW;
1169
1170         if (intel_sdvo->pixel_clock_max < mode->clock)
1171                 return MODE_CLOCK_HIGH;
1172
1173         if (intel_sdvo->is_lvds) {
1174                 if (mode->hdisplay > intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
1175                         return MODE_PANEL;
1176
1177                 if (mode->vdisplay > intel_sdvo->sdvo_lvds_fixed_mode->vdisplay)
1178                         return MODE_PANEL;
1179         }
1180
1181         return MODE_OK;
1182 }
1183
1184 static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct intel_sdvo_caps *caps)
1185 {
1186         BUILD_BUG_ON(sizeof(*caps) != 8);
1187         if (!intel_sdvo_get_value(intel_sdvo,
1188                                   SDVO_CMD_GET_DEVICE_CAPS,
1189                                   caps, sizeof(*caps)))
1190                 return false;
1191
1192         DRM_DEBUG_KMS("SDVO capabilities:\n"
1193                       "  vendor_id: %d\n"
1194                       "  device_id: %d\n"
1195                       "  device_rev_id: %d\n"
1196                       "  sdvo_version_major: %d\n"
1197                       "  sdvo_version_minor: %d\n"
1198                       "  sdvo_inputs_mask: %d\n"
1199                       "  smooth_scaling: %d\n"
1200                       "  sharp_scaling: %d\n"
1201                       "  up_scaling: %d\n"
1202                       "  down_scaling: %d\n"
1203                       "  stall_support: %d\n"
1204                       "  output_flags: %d\n",
1205                       caps->vendor_id,
1206                       caps->device_id,
1207                       caps->device_rev_id,
1208                       caps->sdvo_version_major,
1209                       caps->sdvo_version_minor,
1210                       caps->sdvo_inputs_mask,
1211                       caps->smooth_scaling,
1212                       caps->sharp_scaling,
1213                       caps->up_scaling,
1214                       caps->down_scaling,
1215                       caps->stall_support,
1216                       caps->output_flags);
1217
1218         return true;
1219 }
1220
1221 static int intel_sdvo_supports_hotplug(struct intel_sdvo *intel_sdvo)
1222 {
1223         u8 response[2];
1224
1225         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
1226                                     &response, 2) && response[0];
1227 }
1228
1229 static void intel_sdvo_enable_hotplug(struct intel_encoder *encoder)
1230 {
1231         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1232
1233         intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &intel_sdvo->hotplug_active, 2);
1234 }
1235
1236 static bool
1237 intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
1238 {
1239         /* Is there more than one type of output? */
1240         return hweight16(intel_sdvo->caps.output_flags) > 1;
1241 }
1242
1243 static struct edid *
1244 intel_sdvo_get_edid(struct drm_connector *connector)
1245 {
1246         struct intel_sdvo *sdvo = intel_attached_sdvo(connector);
1247         return drm_get_edid(connector, &sdvo->ddc);
1248 }
1249
1250 /* Mac mini hack -- use the same DDC as the analog connector */
1251 static struct edid *
1252 intel_sdvo_get_analog_edid(struct drm_connector *connector)
1253 {
1254         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1255
1256         return drm_get_edid(connector,
1257                             intel_gmbus_get_adapter(dev_priv,
1258                                                     dev_priv->crt_ddc_pin));
1259 }
1260
1261 enum drm_connector_status
1262 intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
1263 {
1264         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1265         enum drm_connector_status status;
1266         struct edid *edid;
1267
1268         edid = intel_sdvo_get_edid(connector);
1269
1270         if (edid == NULL && intel_sdvo_multifunc_encoder(intel_sdvo)) {
1271                 u8 ddc, saved_ddc = intel_sdvo->ddc_bus;
1272
1273                 /*
1274                  * Don't use the 1 as the argument of DDC bus switch to get
1275                  * the EDID. It is used for SDVO SPD ROM.
1276                  */
1277                 for (ddc = intel_sdvo->ddc_bus >> 1; ddc > 1; ddc >>= 1) {
1278                         intel_sdvo->ddc_bus = ddc;
1279                         edid = intel_sdvo_get_edid(connector);
1280                         if (edid)
1281                                 break;
1282                 }
1283                 /*
1284                  * If we found the EDID on the other bus,
1285                  * assume that is the correct DDC bus.
1286                  */
1287                 if (edid == NULL)
1288                         intel_sdvo->ddc_bus = saved_ddc;
1289         }
1290
1291         /*
1292          * When there is no edid and no monitor is connected with VGA
1293          * port, try to use the CRT ddc to read the EDID for DVI-connector.
1294          */
1295         if (edid == NULL)
1296                 edid = intel_sdvo_get_analog_edid(connector);
1297
1298         status = connector_status_unknown;
1299         if (edid != NULL) {
1300                 /* DDC bus is shared, match EDID to connector type */
1301                 if (edid->input & DRM_EDID_INPUT_DIGITAL) {
1302                         status = connector_status_connected;
1303                         if (intel_sdvo->is_hdmi) {
1304                                 intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
1305                                 intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
1306                         }
1307                 } else
1308                         status = connector_status_disconnected;
1309                 connector->display_info.raw_edid = NULL;
1310                 kfree(edid);
1311         }
1312
1313         if (status == connector_status_connected) {
1314                 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1315                 if (intel_sdvo_connector->force_audio != HDMI_AUDIO_AUTO)
1316                         intel_sdvo->has_hdmi_audio = (intel_sdvo_connector->force_audio == HDMI_AUDIO_ON);
1317         }
1318
1319         return status;
1320 }
1321
1322 static bool
1323 intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
1324                                   struct edid *edid)
1325 {
1326         bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
1327         bool connector_is_digital = !!IS_DIGITAL(sdvo);
1328
1329         DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n",
1330                       connector_is_digital, monitor_is_digital);
1331         return connector_is_digital == monitor_is_digital;
1332 }
1333
1334 static enum drm_connector_status
1335 intel_sdvo_detect(struct drm_connector *connector, bool force)
1336 {
1337         uint16_t response;
1338         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1339         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1340         enum drm_connector_status ret;
1341
1342         if (!intel_sdvo_write_cmd(intel_sdvo,
1343                                   SDVO_CMD_GET_ATTACHED_DISPLAYS, NULL, 0))
1344                 return connector_status_unknown;
1345
1346         /* add 30ms delay when the output type might be TV */
1347         if (intel_sdvo->caps.output_flags &
1348             (SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_CVBS0))
1349                 mdelay(30);
1350
1351         if (!intel_sdvo_read_response(intel_sdvo, &response, 2))
1352                 return connector_status_unknown;
1353
1354         DRM_DEBUG_KMS("SDVO response %d %d [%x]\n",
1355                       response & 0xff, response >> 8,
1356                       intel_sdvo_connector->output_flag);
1357
1358         if (response == 0)
1359                 return connector_status_disconnected;
1360
1361         intel_sdvo->attached_output = response;
1362
1363         intel_sdvo->has_hdmi_monitor = false;
1364         intel_sdvo->has_hdmi_audio = false;
1365
1366         if ((intel_sdvo_connector->output_flag & response) == 0)
1367                 ret = connector_status_disconnected;
1368         else if (IS_TMDS(intel_sdvo_connector))
1369                 ret = intel_sdvo_tmds_sink_detect(connector);
1370         else {
1371                 struct edid *edid;
1372
1373                 /* if we have an edid check it matches the connection */
1374                 edid = intel_sdvo_get_edid(connector);
1375                 if (edid == NULL)
1376                         edid = intel_sdvo_get_analog_edid(connector);
1377                 if (edid != NULL) {
1378                         if (intel_sdvo_connector_matches_edid(intel_sdvo_connector,
1379                                                               edid))
1380                                 ret = connector_status_connected;
1381                         else
1382                                 ret = connector_status_disconnected;
1383
1384                         connector->display_info.raw_edid = NULL;
1385                         kfree(edid);
1386                 } else
1387                         ret = connector_status_connected;
1388         }
1389
1390         /* May update encoder flag for like clock for SDVO TV, etc.*/
1391         if (ret == connector_status_connected) {
1392                 intel_sdvo->is_tv = false;
1393                 intel_sdvo->is_lvds = false;
1394                 intel_sdvo->base.needs_tv_clock = false;
1395
1396                 if (response & SDVO_TV_MASK) {
1397                         intel_sdvo->is_tv = true;
1398                         intel_sdvo->base.needs_tv_clock = true;
1399                 }
1400                 if (response & SDVO_LVDS_MASK)
1401                         intel_sdvo->is_lvds = intel_sdvo->sdvo_lvds_fixed_mode != NULL;
1402         }
1403
1404         return ret;
1405 }
1406
1407 static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
1408 {
1409         struct edid *edid;
1410
1411         /* set the bus switch and get the modes */
1412         edid = intel_sdvo_get_edid(connector);
1413
1414         /*
1415          * Mac mini hack.  On this device, the DVI-I connector shares one DDC
1416          * link between analog and digital outputs. So, if the regular SDVO
1417          * DDC fails, check to see if the analog output is disconnected, in
1418          * which case we'll look there for the digital DDC data.
1419          */
1420         if (edid == NULL)
1421                 edid = intel_sdvo_get_analog_edid(connector);
1422
1423         if (edid != NULL) {
1424                 if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector),
1425                                                       edid)) {
1426                         drm_mode_connector_update_edid_property(connector, edid);
1427                         drm_add_edid_modes(connector, edid);
1428                 }
1429
1430                 connector->display_info.raw_edid = NULL;
1431                 kfree(edid);
1432         }
1433 }
1434
1435 /*
1436  * Set of SDVO TV modes.
1437  * Note!  This is in reply order (see loop in get_tv_modes).
1438  * XXX: all 60Hz refresh?
1439  */
1440 static const struct drm_display_mode sdvo_tv_modes[] = {
1441         { DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 5815, 320, 321, 384,
1442                    416, 0, 200, 201, 232, 233, 0,
1443                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1444         { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 6814, 320, 321, 384,
1445                    416, 0, 240, 241, 272, 273, 0,
1446                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1447         { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 9910, 400, 401, 464,
1448                    496, 0, 300, 301, 332, 333, 0,
1449                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1450         { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 16913, 640, 641, 704,
1451                    736, 0, 350, 351, 382, 383, 0,
1452                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1453         { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 19121, 640, 641, 704,
1454                    736, 0, 400, 401, 432, 433, 0,
1455                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1456         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 22654, 640, 641, 704,
1457                    736, 0, 480, 481, 512, 513, 0,
1458                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1459         { DRM_MODE("704x480", DRM_MODE_TYPE_DRIVER, 24624, 704, 705, 768,
1460                    800, 0, 480, 481, 512, 513, 0,
1461                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1462         { DRM_MODE("704x576", DRM_MODE_TYPE_DRIVER, 29232, 704, 705, 768,
1463                    800, 0, 576, 577, 608, 609, 0,
1464                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1465         { DRM_MODE("720x350", DRM_MODE_TYPE_DRIVER, 18751, 720, 721, 784,
1466                    816, 0, 350, 351, 382, 383, 0,
1467                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1468         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 21199, 720, 721, 784,
1469                    816, 0, 400, 401, 432, 433, 0,
1470                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1471         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 25116, 720, 721, 784,
1472                    816, 0, 480, 481, 512, 513, 0,
1473                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1474         { DRM_MODE("720x540", DRM_MODE_TYPE_DRIVER, 28054, 720, 721, 784,
1475                    816, 0, 540, 541, 572, 573, 0,
1476                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1477         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 29816, 720, 721, 784,
1478                    816, 0, 576, 577, 608, 609, 0,
1479                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1480         { DRM_MODE("768x576", DRM_MODE_TYPE_DRIVER, 31570, 768, 769, 832,
1481                    864, 0, 576, 577, 608, 609, 0,
1482                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1483         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 34030, 800, 801, 864,
1484                    896, 0, 600, 601, 632, 633, 0,
1485                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1486         { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 36581, 832, 833, 896,
1487                    928, 0, 624, 625, 656, 657, 0,
1488                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1489         { DRM_MODE("920x766", DRM_MODE_TYPE_DRIVER, 48707, 920, 921, 984,
1490                    1016, 0, 766, 767, 798, 799, 0,
1491                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1492         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 53827, 1024, 1025, 1088,
1493                    1120, 0, 768, 769, 800, 801, 0,
1494                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1495         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 87265, 1280, 1281, 1344,
1496                    1376, 0, 1024, 1025, 1056, 1057, 0,
1497                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1498 };
1499
1500 static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
1501 {
1502         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1503         struct intel_sdvo_sdtv_resolution_request tv_res;
1504         uint32_t reply = 0, format_map = 0;
1505         int i;
1506
1507         /* Read the list of supported input resolutions for the selected TV
1508          * format.
1509          */
1510         format_map = 1 << intel_sdvo->tv_format_index;
1511         memcpy(&tv_res, &format_map,
1512                min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request)));
1513
1514         if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo->attached_output))
1515                 return;
1516
1517         BUILD_BUG_ON(sizeof(tv_res) != 3);
1518         if (!intel_sdvo_write_cmd(intel_sdvo,
1519                                   SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT,
1520                                   &tv_res, sizeof(tv_res)))
1521                 return;
1522         if (!intel_sdvo_read_response(intel_sdvo, &reply, 3))
1523                 return;
1524
1525         for (i = 0; i < ARRAY_SIZE(sdvo_tv_modes); i++)
1526                 if (reply & (1 << i)) {
1527                         struct drm_display_mode *nmode;
1528                         nmode = drm_mode_duplicate(connector->dev,
1529                                                    &sdvo_tv_modes[i]);
1530                         if (nmode)
1531                                 drm_mode_probed_add(connector, nmode);
1532                 }
1533 }
1534
1535 static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
1536 {
1537         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1538         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1539         struct drm_display_mode *newmode;
1540
1541         /*
1542          * Attempt to get the mode list from DDC.
1543          * Assume that the preferred modes are
1544          * arranged in priority order.
1545          */
1546         intel_ddc_get_modes(connector, intel_sdvo->i2c);
1547         if (list_empty(&connector->probed_modes) == false)
1548                 goto end;
1549
1550         /* Fetch modes from VBT */
1551         if (dev_priv->sdvo_lvds_vbt_mode != NULL) {
1552                 newmode = drm_mode_duplicate(connector->dev,
1553                                              dev_priv->sdvo_lvds_vbt_mode);
1554                 if (newmode != NULL) {
1555                         /* Guarantee the mode is preferred */
1556                         newmode->type = (DRM_MODE_TYPE_PREFERRED |
1557                                          DRM_MODE_TYPE_DRIVER);
1558                         drm_mode_probed_add(connector, newmode);
1559                 }
1560         }
1561
1562 end:
1563         list_for_each_entry(newmode, &connector->probed_modes, head) {
1564                 if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
1565                         intel_sdvo->sdvo_lvds_fixed_mode =
1566                                 drm_mode_duplicate(connector->dev, newmode);
1567
1568                         drm_mode_set_crtcinfo(intel_sdvo->sdvo_lvds_fixed_mode,
1569                                               0);
1570
1571                         intel_sdvo->is_lvds = true;
1572                         break;
1573                 }
1574         }
1575
1576 }
1577
1578 static int intel_sdvo_get_modes(struct drm_connector *connector)
1579 {
1580         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1581
1582         if (IS_TV(intel_sdvo_connector))
1583                 intel_sdvo_get_tv_modes(connector);
1584         else if (IS_LVDS(intel_sdvo_connector))
1585                 intel_sdvo_get_lvds_modes(connector);
1586         else
1587                 intel_sdvo_get_ddc_modes(connector);
1588
1589         return !list_empty(&connector->probed_modes);
1590 }
1591
1592 static void
1593 intel_sdvo_destroy_enhance_property(struct drm_connector *connector)
1594 {
1595         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1596         struct drm_device *dev = connector->dev;
1597
1598         if (intel_sdvo_connector->left)
1599                 drm_property_destroy(dev, intel_sdvo_connector->left);
1600         if (intel_sdvo_connector->right)
1601                 drm_property_destroy(dev, intel_sdvo_connector->right);
1602         if (intel_sdvo_connector->top)
1603                 drm_property_destroy(dev, intel_sdvo_connector->top);
1604         if (intel_sdvo_connector->bottom)
1605                 drm_property_destroy(dev, intel_sdvo_connector->bottom);
1606         if (intel_sdvo_connector->hpos)
1607                 drm_property_destroy(dev, intel_sdvo_connector->hpos);
1608         if (intel_sdvo_connector->vpos)
1609                 drm_property_destroy(dev, intel_sdvo_connector->vpos);
1610         if (intel_sdvo_connector->saturation)
1611                 drm_property_destroy(dev, intel_sdvo_connector->saturation);
1612         if (intel_sdvo_connector->contrast)
1613                 drm_property_destroy(dev, intel_sdvo_connector->contrast);
1614         if (intel_sdvo_connector->hue)
1615                 drm_property_destroy(dev, intel_sdvo_connector->hue);
1616         if (intel_sdvo_connector->sharpness)
1617                 drm_property_destroy(dev, intel_sdvo_connector->sharpness);
1618         if (intel_sdvo_connector->flicker_filter)
1619                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter);
1620         if (intel_sdvo_connector->flicker_filter_2d)
1621                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_2d);
1622         if (intel_sdvo_connector->flicker_filter_adaptive)
1623                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_adaptive);
1624         if (intel_sdvo_connector->tv_luma_filter)
1625                 drm_property_destroy(dev, intel_sdvo_connector->tv_luma_filter);
1626         if (intel_sdvo_connector->tv_chroma_filter)
1627                 drm_property_destroy(dev, intel_sdvo_connector->tv_chroma_filter);
1628         if (intel_sdvo_connector->dot_crawl)
1629                 drm_property_destroy(dev, intel_sdvo_connector->dot_crawl);
1630         if (intel_sdvo_connector->brightness)
1631                 drm_property_destroy(dev, intel_sdvo_connector->brightness);
1632 }
1633
1634 static void intel_sdvo_destroy(struct drm_connector *connector)
1635 {
1636         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1637
1638         if (intel_sdvo_connector->tv_format)
1639                 drm_property_destroy(connector->dev,
1640                                      intel_sdvo_connector->tv_format);
1641
1642         intel_sdvo_destroy_enhance_property(connector);
1643         drm_sysfs_connector_remove(connector);
1644         drm_connector_cleanup(connector);
1645         kfree(connector);
1646 }
1647
1648 static bool intel_sdvo_detect_hdmi_audio(struct drm_connector *connector)
1649 {
1650         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1651         struct edid *edid;
1652         bool has_audio = false;
1653
1654         if (!intel_sdvo->is_hdmi)
1655                 return false;
1656
1657         edid = intel_sdvo_get_edid(connector);
1658         if (edid != NULL && edid->input & DRM_EDID_INPUT_DIGITAL)
1659                 has_audio = drm_detect_monitor_audio(edid);
1660
1661         return has_audio;
1662 }
1663
1664 static int
1665 intel_sdvo_set_property(struct drm_connector *connector,
1666                         struct drm_property *property,
1667                         uint64_t val)
1668 {
1669         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1670         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1671         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1672         uint16_t temp_value;
1673         uint8_t cmd;
1674         int ret;
1675
1676         ret = drm_connector_property_set_value(connector, property, val);
1677         if (ret)
1678                 return ret;
1679
1680         if (property == dev_priv->force_audio_property) {
1681                 int i = val;
1682                 bool has_audio;
1683
1684                 if (i == intel_sdvo_connector->force_audio)
1685                         return 0;
1686
1687                 intel_sdvo_connector->force_audio = i;
1688
1689                 if (i == HDMI_AUDIO_AUTO)
1690                         has_audio = intel_sdvo_detect_hdmi_audio(connector);
1691                 else
1692                         has_audio = (i == HDMI_AUDIO_ON);
1693
1694                 if (has_audio == intel_sdvo->has_hdmi_audio)
1695                         return 0;
1696
1697                 intel_sdvo->has_hdmi_audio = has_audio;
1698                 goto done;
1699         }
1700
1701         if (property == dev_priv->broadcast_rgb_property) {
1702                 if (val == !!intel_sdvo->color_range)
1703                         return 0;
1704
1705                 intel_sdvo->color_range = val ? SDVO_COLOR_RANGE_16_235 : 0;
1706                 goto done;
1707         }
1708
1709 #define CHECK_PROPERTY(name, NAME) \
1710         if (intel_sdvo_connector->name == property) { \
1711                 if (intel_sdvo_connector->cur_##name == temp_value) return 0; \
1712                 if (intel_sdvo_connector->max_##name < temp_value) return -EINVAL; \
1713                 cmd = SDVO_CMD_SET_##NAME; \
1714                 intel_sdvo_connector->cur_##name = temp_value; \
1715                 goto set_value; \
1716         }
1717
1718         if (property == intel_sdvo_connector->tv_format) {
1719                 if (val >= TV_FORMAT_NUM)
1720                         return -EINVAL;
1721
1722                 if (intel_sdvo->tv_format_index ==
1723                     intel_sdvo_connector->tv_format_supported[val])
1724                         return 0;
1725
1726                 intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[val];
1727                 goto done;
1728         } else if (IS_TV_OR_LVDS(intel_sdvo_connector)) {
1729                 temp_value = val;
1730                 if (intel_sdvo_connector->left == property) {
1731                         drm_connector_property_set_value(connector,
1732                                                          intel_sdvo_connector->right, val);
1733                         if (intel_sdvo_connector->left_margin == temp_value)
1734                                 return 0;
1735
1736                         intel_sdvo_connector->left_margin = temp_value;
1737                         intel_sdvo_connector->right_margin = temp_value;
1738                         temp_value = intel_sdvo_connector->max_hscan -
1739                                 intel_sdvo_connector->left_margin;
1740                         cmd = SDVO_CMD_SET_OVERSCAN_H;
1741                         goto set_value;
1742                 } else if (intel_sdvo_connector->right == property) {
1743                         drm_connector_property_set_value(connector,
1744                                                          intel_sdvo_connector->left, val);
1745                         if (intel_sdvo_connector->right_margin == temp_value)
1746                                 return 0;
1747
1748                         intel_sdvo_connector->left_margin = temp_value;
1749                         intel_sdvo_connector->right_margin = temp_value;
1750                         temp_value = intel_sdvo_connector->max_hscan -
1751                                 intel_sdvo_connector->left_margin;
1752                         cmd = SDVO_CMD_SET_OVERSCAN_H;
1753                         goto set_value;
1754                 } else if (intel_sdvo_connector->top == property) {
1755                         drm_connector_property_set_value(connector,
1756                                                          intel_sdvo_connector->bottom, val);
1757                         if (intel_sdvo_connector->top_margin == temp_value)
1758                                 return 0;
1759
1760                         intel_sdvo_connector->top_margin = temp_value;
1761                         intel_sdvo_connector->bottom_margin = temp_value;
1762                         temp_value = intel_sdvo_connector->max_vscan -
1763                                 intel_sdvo_connector->top_margin;
1764                         cmd = SDVO_CMD_SET_OVERSCAN_V;
1765                         goto set_value;
1766                 } else if (intel_sdvo_connector->bottom == property) {
1767                         drm_connector_property_set_value(connector,
1768                                                          intel_sdvo_connector->top, val);
1769                         if (intel_sdvo_connector->bottom_margin == temp_value)
1770                                 return 0;
1771
1772                         intel_sdvo_connector->top_margin = temp_value;
1773                         intel_sdvo_connector->bottom_margin = temp_value;
1774                         temp_value = intel_sdvo_connector->max_vscan -
1775                                 intel_sdvo_connector->top_margin;
1776                         cmd = SDVO_CMD_SET_OVERSCAN_V;
1777                         goto set_value;
1778                 }
1779                 CHECK_PROPERTY(hpos, HPOS)
1780                 CHECK_PROPERTY(vpos, VPOS)
1781                 CHECK_PROPERTY(saturation, SATURATION)
1782                 CHECK_PROPERTY(contrast, CONTRAST)
1783                 CHECK_PROPERTY(hue, HUE)
1784                 CHECK_PROPERTY(brightness, BRIGHTNESS)
1785                 CHECK_PROPERTY(sharpness, SHARPNESS)
1786                 CHECK_PROPERTY(flicker_filter, FLICKER_FILTER)
1787                 CHECK_PROPERTY(flicker_filter_2d, FLICKER_FILTER_2D)
1788                 CHECK_PROPERTY(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE)
1789                 CHECK_PROPERTY(tv_chroma_filter, TV_CHROMA_FILTER)
1790                 CHECK_PROPERTY(tv_luma_filter, TV_LUMA_FILTER)
1791                 CHECK_PROPERTY(dot_crawl, DOT_CRAWL)
1792         }
1793
1794         return -EINVAL; /* unknown property */
1795
1796 set_value:
1797         if (!intel_sdvo_set_value(intel_sdvo, cmd, &temp_value, 2))
1798                 return -EIO;
1799
1800
1801 done:
1802         if (intel_sdvo->base.base.crtc) {
1803                 struct drm_crtc *crtc = intel_sdvo->base.base.crtc;
1804                 drm_crtc_helper_set_mode(crtc, &crtc->mode, crtc->x,
1805                                          crtc->y, crtc->fb);
1806         }
1807
1808         return 0;
1809 #undef CHECK_PROPERTY
1810 }
1811
1812 static const struct drm_encoder_helper_funcs intel_sdvo_helper_funcs = {
1813         .dpms = intel_sdvo_dpms,
1814         .mode_fixup = intel_sdvo_mode_fixup,
1815         .prepare = intel_encoder_prepare,
1816         .mode_set = intel_sdvo_mode_set,
1817         .commit = intel_encoder_commit,
1818 };
1819
1820 static const struct drm_connector_funcs intel_sdvo_connector_funcs = {
1821         .dpms = drm_helper_connector_dpms,
1822         .detect = intel_sdvo_detect,
1823         .fill_modes = drm_helper_probe_single_connector_modes,
1824         .set_property = intel_sdvo_set_property,
1825         .destroy = intel_sdvo_destroy,
1826 };
1827
1828 static const struct drm_connector_helper_funcs intel_sdvo_connector_helper_funcs = {
1829         .get_modes = intel_sdvo_get_modes,
1830         .mode_valid = intel_sdvo_mode_valid,
1831         .best_encoder = intel_best_encoder,
1832 };
1833
1834 static void intel_sdvo_enc_destroy(struct drm_encoder *encoder)
1835 {
1836         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
1837
1838         if (intel_sdvo->sdvo_lvds_fixed_mode != NULL)
1839                 drm_mode_destroy(encoder->dev,
1840                                  intel_sdvo->sdvo_lvds_fixed_mode);
1841
1842         i2c_del_adapter(&intel_sdvo->ddc);
1843         intel_encoder_destroy(encoder);
1844 }
1845
1846 static const struct drm_encoder_funcs intel_sdvo_enc_funcs = {
1847         .destroy = intel_sdvo_enc_destroy,
1848 };
1849
1850 static void
1851 intel_sdvo_guess_ddc_bus(struct intel_sdvo *sdvo)
1852 {
1853         uint16_t mask = 0;
1854         unsigned int num_bits;
1855
1856         /* Make a mask of outputs less than or equal to our own priority in the
1857          * list.
1858          */
1859         switch (sdvo->controlled_output) {
1860         case SDVO_OUTPUT_LVDS1:
1861                 mask |= SDVO_OUTPUT_LVDS1;
1862         case SDVO_OUTPUT_LVDS0:
1863                 mask |= SDVO_OUTPUT_LVDS0;
1864         case SDVO_OUTPUT_TMDS1:
1865                 mask |= SDVO_OUTPUT_TMDS1;
1866         case SDVO_OUTPUT_TMDS0:
1867                 mask |= SDVO_OUTPUT_TMDS0;
1868         case SDVO_OUTPUT_RGB1:
1869                 mask |= SDVO_OUTPUT_RGB1;
1870         case SDVO_OUTPUT_RGB0:
1871                 mask |= SDVO_OUTPUT_RGB0;
1872                 break;
1873         }
1874
1875         /* Count bits to find what number we are in the priority list. */
1876         mask &= sdvo->caps.output_flags;
1877         num_bits = hweight16(mask);
1878         /* If more than 3 outputs, default to DDC bus 3 for now. */
1879         if (num_bits > 3)
1880                 num_bits = 3;
1881
1882         /* Corresponds to SDVO_CONTROL_BUS_DDCx */
1883         sdvo->ddc_bus = 1 << num_bits;
1884 }
1885
1886 /**
1887  * Choose the appropriate DDC bus for control bus switch command for this
1888  * SDVO output based on the controlled output.
1889  *
1890  * DDC bus number assignment is in a priority order of RGB outputs, then TMDS
1891  * outputs, then LVDS outputs.
1892  */
1893 static void
1894 intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv,
1895                           struct intel_sdvo *sdvo, u32 reg)
1896 {
1897         struct sdvo_device_mapping *mapping;
1898
1899         if (sdvo->is_sdvob)
1900                 mapping = &(dev_priv->sdvo_mappings[0]);
1901         else
1902                 mapping = &(dev_priv->sdvo_mappings[1]);
1903
1904         if (mapping->initialized)
1905                 sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
1906         else
1907                 intel_sdvo_guess_ddc_bus(sdvo);
1908 }
1909
1910 static void
1911 intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
1912                           struct intel_sdvo *sdvo, u32 reg)
1913 {
1914         struct sdvo_device_mapping *mapping;
1915         u8 pin;
1916
1917         if (sdvo->is_sdvob)
1918                 mapping = &dev_priv->sdvo_mappings[0];
1919         else
1920                 mapping = &dev_priv->sdvo_mappings[1];
1921
1922         pin = GMBUS_PORT_DPB;
1923         if (mapping->initialized)
1924                 pin = mapping->i2c_pin;
1925
1926         if (intel_gmbus_is_port_valid(pin)) {
1927                 sdvo->i2c = intel_gmbus_get_adapter(dev_priv, pin);
1928                 intel_gmbus_set_speed(sdvo->i2c, GMBUS_RATE_1MHZ);
1929                 intel_gmbus_force_bit(sdvo->i2c, true);
1930         } else {
1931                 sdvo->i2c = intel_gmbus_get_adapter(dev_priv, GMBUS_PORT_DPB);
1932         }
1933 }
1934
1935 static bool
1936 intel_sdvo_is_hdmi_connector(struct intel_sdvo *intel_sdvo, int device)
1937 {
1938         return intel_sdvo_check_supp_encode(intel_sdvo);
1939 }
1940
1941 static u8
1942 intel_sdvo_get_slave_addr(struct drm_device *dev, struct intel_sdvo *sdvo)
1943 {
1944         struct drm_i915_private *dev_priv = dev->dev_private;
1945         struct sdvo_device_mapping *my_mapping, *other_mapping;
1946
1947         if (sdvo->is_sdvob) {
1948                 my_mapping = &dev_priv->sdvo_mappings[0];
1949                 other_mapping = &dev_priv->sdvo_mappings[1];
1950         } else {
1951                 my_mapping = &dev_priv->sdvo_mappings[1];
1952                 other_mapping = &dev_priv->sdvo_mappings[0];
1953         }
1954
1955         /* If the BIOS described our SDVO device, take advantage of it. */
1956         if (my_mapping->slave_addr)
1957                 return my_mapping->slave_addr;
1958
1959         /* If the BIOS only described a different SDVO device, use the
1960          * address that it isn't using.
1961          */
1962         if (other_mapping->slave_addr) {
1963                 if (other_mapping->slave_addr == 0x70)
1964                         return 0x72;
1965                 else
1966                         return 0x70;
1967         }
1968
1969         /* No SDVO device info is found for another DVO port,
1970          * so use mapping assumption we had before BIOS parsing.
1971          */
1972         if (sdvo->is_sdvob)
1973                 return 0x70;
1974         else
1975                 return 0x72;
1976 }
1977
1978 static void
1979 intel_sdvo_connector_init(struct intel_sdvo_connector *connector,
1980                           struct intel_sdvo *encoder)
1981 {
1982         drm_connector_init(encoder->base.base.dev,
1983                            &connector->base.base,
1984                            &intel_sdvo_connector_funcs,
1985                            connector->base.base.connector_type);
1986
1987         drm_connector_helper_add(&connector->base.base,
1988                                  &intel_sdvo_connector_helper_funcs);
1989
1990         connector->base.base.interlace_allowed = 1;
1991         connector->base.base.doublescan_allowed = 0;
1992         connector->base.base.display_info.subpixel_order = SubPixelHorizontalRGB;
1993
1994         intel_connector_attach_encoder(&connector->base, &encoder->base);
1995         drm_sysfs_connector_add(&connector->base.base);
1996 }
1997
1998 static void
1999 intel_sdvo_add_hdmi_properties(struct intel_sdvo_connector *connector)
2000 {
2001         struct drm_device *dev = connector->base.base.dev;
2002
2003         intel_attach_force_audio_property(&connector->base.base);
2004         if (INTEL_INFO(dev)->gen >= 4 && IS_MOBILE(dev))
2005                 intel_attach_broadcast_rgb_property(&connector->base.base);
2006 }
2007
2008 static bool
2009 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
2010 {
2011         struct drm_encoder *encoder = &intel_sdvo->base.base;
2012         struct drm_connector *connector;
2013         struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
2014         struct intel_connector *intel_connector;
2015         struct intel_sdvo_connector *intel_sdvo_connector;
2016
2017         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2018         if (!intel_sdvo_connector)
2019                 return false;
2020
2021         if (device == 0) {
2022                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS0;
2023                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS0;
2024         } else if (device == 1) {
2025                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS1;
2026                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS1;
2027         }
2028
2029         intel_connector = &intel_sdvo_connector->base;
2030         connector = &intel_connector->base;
2031         if (intel_sdvo_supports_hotplug(intel_sdvo) & (1 << device)) {
2032                 connector->polled = DRM_CONNECTOR_POLL_HPD;
2033                 intel_sdvo->hotplug_active[0] |= 1 << device;
2034                 /* Some SDVO devices have one-shot hotplug interrupts.
2035                  * Ensure that they get re-enabled when an interrupt happens.
2036                  */
2037                 intel_encoder->hot_plug = intel_sdvo_enable_hotplug;
2038                 intel_sdvo_enable_hotplug(intel_encoder);
2039         }
2040         else
2041                 connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
2042         encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
2043         connector->connector_type = DRM_MODE_CONNECTOR_DVID;
2044
2045         if (intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
2046                 connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
2047                 intel_sdvo->is_hdmi = true;
2048         }
2049         intel_sdvo->base.clone_mask = ((1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
2050                                        (1 << INTEL_ANALOG_CLONE_BIT));
2051
2052         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2053         if (intel_sdvo->is_hdmi)
2054                 intel_sdvo_add_hdmi_properties(intel_sdvo_connector);
2055
2056         return true;
2057 }
2058
2059 static bool
2060 intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
2061 {
2062         struct drm_encoder *encoder = &intel_sdvo->base.base;
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         intel_connector = &intel_sdvo_connector->base;
2072         connector = &intel_connector->base;
2073         encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
2074         connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
2075
2076         intel_sdvo->controlled_output |= type;
2077         intel_sdvo_connector->output_flag = type;
2078
2079         intel_sdvo->is_tv = true;
2080         intel_sdvo->base.needs_tv_clock = true;
2081         intel_sdvo->base.clone_mask = 1 << INTEL_SDVO_TV_CLONE_BIT;
2082
2083         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2084
2085         if (!intel_sdvo_tv_create_property(intel_sdvo, intel_sdvo_connector, type))
2086                 goto err;
2087
2088         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2089                 goto err;
2090
2091         return true;
2092
2093 err:
2094         intel_sdvo_destroy(connector);
2095         return false;
2096 }
2097
2098 static bool
2099 intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device)
2100 {
2101         struct drm_encoder *encoder = &intel_sdvo->base.base;
2102         struct drm_connector *connector;
2103         struct intel_connector *intel_connector;
2104         struct intel_sdvo_connector *intel_sdvo_connector;
2105
2106         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2107         if (!intel_sdvo_connector)
2108                 return false;
2109
2110         intel_connector = &intel_sdvo_connector->base;
2111         connector = &intel_connector->base;
2112         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
2113         encoder->encoder_type = DRM_MODE_ENCODER_DAC;
2114         connector->connector_type = DRM_MODE_CONNECTOR_VGA;
2115
2116         if (device == 0) {
2117                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB0;
2118                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB0;
2119         } else if (device == 1) {
2120                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB1;
2121                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1;
2122         }
2123
2124         intel_sdvo->base.clone_mask = ((1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
2125                                        (1 << INTEL_ANALOG_CLONE_BIT));
2126
2127         intel_sdvo_connector_init(intel_sdvo_connector,
2128                                   intel_sdvo);
2129         return true;
2130 }
2131
2132 static bool
2133 intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
2134 {
2135         struct drm_encoder *encoder = &intel_sdvo->base.base;
2136         struct drm_connector *connector;
2137         struct intel_connector *intel_connector;
2138         struct intel_sdvo_connector *intel_sdvo_connector;
2139
2140         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2141         if (!intel_sdvo_connector)
2142                 return false;
2143
2144         intel_connector = &intel_sdvo_connector->base;
2145         connector = &intel_connector->base;
2146         encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
2147         connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
2148
2149         if (device == 0) {
2150                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS0;
2151                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS0;
2152         } else if (device == 1) {
2153                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS1;
2154                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1;
2155         }
2156
2157         intel_sdvo->base.clone_mask = ((1 << INTEL_ANALOG_CLONE_BIT) |
2158                                        (1 << INTEL_SDVO_LVDS_CLONE_BIT));
2159
2160         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2161         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2162                 goto err;
2163
2164         return true;
2165
2166 err:
2167         intel_sdvo_destroy(connector);
2168         return false;
2169 }
2170
2171 static bool
2172 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
2173 {
2174         intel_sdvo->is_tv = false;
2175         intel_sdvo->base.needs_tv_clock = false;
2176         intel_sdvo->is_lvds = false;
2177
2178         /* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
2179
2180         if (flags & SDVO_OUTPUT_TMDS0)
2181                 if (!intel_sdvo_dvi_init(intel_sdvo, 0))
2182                         return false;
2183
2184         if ((flags & SDVO_TMDS_MASK) == SDVO_TMDS_MASK)
2185                 if (!intel_sdvo_dvi_init(intel_sdvo, 1))
2186                         return false;
2187
2188         /* TV has no XXX1 function block */
2189         if (flags & SDVO_OUTPUT_SVID0)
2190                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_SVID0))
2191                         return false;
2192
2193         if (flags & SDVO_OUTPUT_CVBS0)
2194                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_CVBS0))
2195                         return false;
2196
2197         if (flags & SDVO_OUTPUT_RGB0)
2198                 if (!intel_sdvo_analog_init(intel_sdvo, 0))
2199                         return false;
2200
2201         if ((flags & SDVO_RGB_MASK) == SDVO_RGB_MASK)
2202                 if (!intel_sdvo_analog_init(intel_sdvo, 1))
2203                         return false;
2204
2205         if (flags & SDVO_OUTPUT_LVDS0)
2206                 if (!intel_sdvo_lvds_init(intel_sdvo, 0))
2207                         return false;
2208
2209         if ((flags & SDVO_LVDS_MASK) == SDVO_LVDS_MASK)
2210                 if (!intel_sdvo_lvds_init(intel_sdvo, 1))
2211                         return false;
2212
2213         if ((flags & SDVO_OUTPUT_MASK) == 0) {
2214                 unsigned char bytes[2];
2215
2216                 intel_sdvo->controlled_output = 0;
2217                 memcpy(bytes, &intel_sdvo->caps.output_flags, 2);
2218                 DRM_DEBUG_KMS("%s: Unknown SDVO output type (0x%02x%02x)\n",
2219                               SDVO_NAME(intel_sdvo),
2220                               bytes[0], bytes[1]);
2221                 return false;
2222         }
2223         intel_sdvo->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
2224
2225         return true;
2226 }
2227
2228 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
2229                                           struct intel_sdvo_connector *intel_sdvo_connector,
2230                                           int type)
2231 {
2232         struct drm_device *dev = intel_sdvo->base.base.dev;
2233         struct intel_sdvo_tv_format format;
2234         uint32_t format_map, i;
2235
2236         if (!intel_sdvo_set_target_output(intel_sdvo, type))
2237                 return false;
2238
2239         BUILD_BUG_ON(sizeof(format) != 6);
2240         if (!intel_sdvo_get_value(intel_sdvo,
2241                                   SDVO_CMD_GET_SUPPORTED_TV_FORMATS,
2242                                   &format, sizeof(format)))
2243                 return false;
2244
2245         memcpy(&format_map, &format, min(sizeof(format_map), sizeof(format)));
2246
2247         if (format_map == 0)
2248                 return false;
2249
2250         intel_sdvo_connector->format_supported_num = 0;
2251         for (i = 0 ; i < TV_FORMAT_NUM; i++)
2252                 if (format_map & (1 << i))
2253                         intel_sdvo_connector->tv_format_supported[intel_sdvo_connector->format_supported_num++] = i;
2254
2255
2256         intel_sdvo_connector->tv_format =
2257                         drm_property_create(dev, DRM_MODE_PROP_ENUM,
2258                                             "mode", intel_sdvo_connector->format_supported_num);
2259         if (!intel_sdvo_connector->tv_format)
2260                 return false;
2261
2262         for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
2263                 drm_property_add_enum(
2264                                 intel_sdvo_connector->tv_format, i,
2265                                 i, tv_format_names[intel_sdvo_connector->tv_format_supported[i]]);
2266
2267         intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[0];
2268         drm_connector_attach_property(&intel_sdvo_connector->base.base,
2269                                       intel_sdvo_connector->tv_format, 0);
2270         return true;
2271
2272 }
2273
2274 #define ENHANCEMENT(name, NAME) do { \
2275         if (enhancements.name) { \
2276                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_MAX_##NAME, &data_value, 4) || \
2277                     !intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_##NAME, &response, 2)) \
2278                         return false; \
2279                 intel_sdvo_connector->max_##name = data_value[0]; \
2280                 intel_sdvo_connector->cur_##name = response; \
2281                 intel_sdvo_connector->name = \
2282                         drm_property_create_range(dev, 0, #name, 0, data_value[0]); \
2283                 if (!intel_sdvo_connector->name) return false; \
2284                 drm_connector_attach_property(connector, \
2285                                               intel_sdvo_connector->name, \
2286                                               intel_sdvo_connector->cur_##name); \
2287                 DRM_DEBUG_KMS(#name ": max %d, default %d, current %d\n", \
2288                               data_value[0], data_value[1], response); \
2289         } \
2290 } while (0)
2291
2292 static bool
2293 intel_sdvo_create_enhance_property_tv(struct intel_sdvo *intel_sdvo,
2294                                       struct intel_sdvo_connector *intel_sdvo_connector,
2295                                       struct intel_sdvo_enhancements_reply enhancements)
2296 {
2297         struct drm_device *dev = intel_sdvo->base.base.dev;
2298         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2299         uint16_t response, data_value[2];
2300
2301         /* when horizontal overscan is supported, Add the left/right  property */
2302         if (enhancements.overscan_h) {
2303                 if (!intel_sdvo_get_value(intel_sdvo,
2304                                           SDVO_CMD_GET_MAX_OVERSCAN_H,
2305                                           &data_value, 4))
2306                         return false;
2307
2308                 if (!intel_sdvo_get_value(intel_sdvo,
2309                                           SDVO_CMD_GET_OVERSCAN_H,
2310                                           &response, 2))
2311                         return false;
2312
2313                 intel_sdvo_connector->max_hscan = data_value[0];
2314                 intel_sdvo_connector->left_margin = data_value[0] - response;
2315                 intel_sdvo_connector->right_margin = intel_sdvo_connector->left_margin;
2316                 intel_sdvo_connector->left =
2317                         drm_property_create_range(dev, 0, "left_margin", 0, data_value[0]);
2318                 if (!intel_sdvo_connector->left)
2319                         return false;
2320
2321                 drm_connector_attach_property(connector,
2322                                               intel_sdvo_connector->left,
2323                                               intel_sdvo_connector->left_margin);
2324
2325                 intel_sdvo_connector->right =
2326                         drm_property_create_range(dev, 0, "right_margin", 0, data_value[0]);
2327                 if (!intel_sdvo_connector->right)
2328                         return false;
2329
2330                 drm_connector_attach_property(connector,
2331                                               intel_sdvo_connector->right,
2332                                               intel_sdvo_connector->right_margin);
2333                 DRM_DEBUG_KMS("h_overscan: max %d, "
2334                               "default %d, current %d\n",
2335                               data_value[0], data_value[1], response);
2336         }
2337
2338         if (enhancements.overscan_v) {
2339                 if (!intel_sdvo_get_value(intel_sdvo,
2340                                           SDVO_CMD_GET_MAX_OVERSCAN_V,
2341                                           &data_value, 4))
2342                         return false;
2343
2344                 if (!intel_sdvo_get_value(intel_sdvo,
2345                                           SDVO_CMD_GET_OVERSCAN_V,
2346                                           &response, 2))
2347                         return false;
2348
2349                 intel_sdvo_connector->max_vscan = data_value[0];
2350                 intel_sdvo_connector->top_margin = data_value[0] - response;
2351                 intel_sdvo_connector->bottom_margin = intel_sdvo_connector->top_margin;
2352                 intel_sdvo_connector->top =
2353                         drm_property_create_range(dev, 0,
2354                                             "top_margin", 0, data_value[0]);
2355                 if (!intel_sdvo_connector->top)
2356                         return false;
2357
2358                 drm_connector_attach_property(connector,
2359                                               intel_sdvo_connector->top,
2360                                               intel_sdvo_connector->top_margin);
2361
2362                 intel_sdvo_connector->bottom =
2363                         drm_property_create_range(dev, 0,
2364                                             "bottom_margin", 0, data_value[0]);
2365                 if (!intel_sdvo_connector->bottom)
2366                         return false;
2367
2368                 drm_connector_attach_property(connector,
2369                                               intel_sdvo_connector->bottom,
2370                                               intel_sdvo_connector->bottom_margin);
2371                 DRM_DEBUG_KMS("v_overscan: max %d, "
2372                               "default %d, current %d\n",
2373                               data_value[0], data_value[1], response);
2374         }
2375
2376         ENHANCEMENT(hpos, HPOS);
2377         ENHANCEMENT(vpos, VPOS);
2378         ENHANCEMENT(saturation, SATURATION);
2379         ENHANCEMENT(contrast, CONTRAST);
2380         ENHANCEMENT(hue, HUE);
2381         ENHANCEMENT(sharpness, SHARPNESS);
2382         ENHANCEMENT(brightness, BRIGHTNESS);
2383         ENHANCEMENT(flicker_filter, FLICKER_FILTER);
2384         ENHANCEMENT(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
2385         ENHANCEMENT(flicker_filter_2d, FLICKER_FILTER_2D);
2386         ENHANCEMENT(tv_chroma_filter, TV_CHROMA_FILTER);
2387         ENHANCEMENT(tv_luma_filter, TV_LUMA_FILTER);
2388
2389         if (enhancements.dot_crawl) {
2390                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_DOT_CRAWL, &response, 2))
2391                         return false;
2392
2393                 intel_sdvo_connector->max_dot_crawl = 1;
2394                 intel_sdvo_connector->cur_dot_crawl = response & 0x1;
2395                 intel_sdvo_connector->dot_crawl =
2396                         drm_property_create_range(dev, 0, "dot_crawl", 0, 1);
2397                 if (!intel_sdvo_connector->dot_crawl)
2398                         return false;
2399
2400                 drm_connector_attach_property(connector,
2401                                               intel_sdvo_connector->dot_crawl,
2402                                               intel_sdvo_connector->cur_dot_crawl);
2403                 DRM_DEBUG_KMS("dot crawl: current %d\n", response);
2404         }
2405
2406         return true;
2407 }
2408
2409 static bool
2410 intel_sdvo_create_enhance_property_lvds(struct intel_sdvo *intel_sdvo,
2411                                         struct intel_sdvo_connector *intel_sdvo_connector,
2412                                         struct intel_sdvo_enhancements_reply enhancements)
2413 {
2414         struct drm_device *dev = intel_sdvo->base.base.dev;
2415         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2416         uint16_t response, data_value[2];
2417
2418         ENHANCEMENT(brightness, BRIGHTNESS);
2419
2420         return true;
2421 }
2422 #undef ENHANCEMENT
2423
2424 static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
2425                                                struct intel_sdvo_connector *intel_sdvo_connector)
2426 {
2427         union {
2428                 struct intel_sdvo_enhancements_reply reply;
2429                 uint16_t response;
2430         } enhancements;
2431
2432         BUILD_BUG_ON(sizeof(enhancements) != 2);
2433
2434         enhancements.response = 0;
2435         intel_sdvo_get_value(intel_sdvo,
2436                              SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
2437                              &enhancements, sizeof(enhancements));
2438         if (enhancements.response == 0) {
2439                 DRM_DEBUG_KMS("No enhancement is supported\n");
2440                 return true;
2441         }
2442
2443         if (IS_TV(intel_sdvo_connector))
2444                 return intel_sdvo_create_enhance_property_tv(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2445         else if (IS_LVDS(intel_sdvo_connector))
2446                 return intel_sdvo_create_enhance_property_lvds(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2447         else
2448                 return true;
2449 }
2450
2451 static int intel_sdvo_ddc_proxy_xfer(struct i2c_adapter *adapter,
2452                                      struct i2c_msg *msgs,
2453                                      int num)
2454 {
2455         struct intel_sdvo *sdvo = adapter->algo_data;
2456
2457         if (!intel_sdvo_set_control_bus_switch(sdvo, sdvo->ddc_bus))
2458                 return -EIO;
2459
2460         return sdvo->i2c->algo->master_xfer(sdvo->i2c, msgs, num);
2461 }
2462
2463 static u32 intel_sdvo_ddc_proxy_func(struct i2c_adapter *adapter)
2464 {
2465         struct intel_sdvo *sdvo = adapter->algo_data;
2466         return sdvo->i2c->algo->functionality(sdvo->i2c);
2467 }
2468
2469 static const struct i2c_algorithm intel_sdvo_ddc_proxy = {
2470         .master_xfer    = intel_sdvo_ddc_proxy_xfer,
2471         .functionality  = intel_sdvo_ddc_proxy_func
2472 };
2473
2474 static bool
2475 intel_sdvo_init_ddc_proxy(struct intel_sdvo *sdvo,
2476                           struct drm_device *dev)
2477 {
2478         sdvo->ddc.owner = THIS_MODULE;
2479         sdvo->ddc.class = I2C_CLASS_DDC;
2480         snprintf(sdvo->ddc.name, I2C_NAME_SIZE, "SDVO DDC proxy");
2481         sdvo->ddc.dev.parent = &dev->pdev->dev;
2482         sdvo->ddc.algo_data = sdvo;
2483         sdvo->ddc.algo = &intel_sdvo_ddc_proxy;
2484
2485         return i2c_add_adapter(&sdvo->ddc) == 0;
2486 }
2487
2488 bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
2489 {
2490         struct drm_i915_private *dev_priv = dev->dev_private;
2491         struct intel_encoder *intel_encoder;
2492         struct intel_sdvo *intel_sdvo;
2493         int i;
2494
2495         intel_sdvo = kzalloc(sizeof(struct intel_sdvo), GFP_KERNEL);
2496         if (!intel_sdvo)
2497                 return false;
2498
2499         intel_sdvo->sdvo_reg = sdvo_reg;
2500         intel_sdvo->is_sdvob = is_sdvob;
2501         intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(dev, intel_sdvo) >> 1;
2502         intel_sdvo_select_i2c_bus(dev_priv, intel_sdvo, sdvo_reg);
2503         if (!intel_sdvo_init_ddc_proxy(intel_sdvo, dev)) {
2504                 kfree(intel_sdvo);
2505                 return false;
2506         }
2507
2508         /* encoder type will be decided later */
2509         intel_encoder = &intel_sdvo->base;
2510         intel_encoder->type = INTEL_OUTPUT_SDVO;
2511         drm_encoder_init(dev, &intel_encoder->base, &intel_sdvo_enc_funcs, 0);
2512
2513         /* Read the regs to test if we can talk to the device */
2514         for (i = 0; i < 0x40; i++) {
2515                 u8 byte;
2516
2517                 if (!intel_sdvo_read_byte(intel_sdvo, i, &byte)) {
2518                         DRM_DEBUG_KMS("No SDVO device found on %s\n",
2519                                       SDVO_NAME(intel_sdvo));
2520                         goto err;
2521                 }
2522         }
2523
2524         if (intel_sdvo->is_sdvob)
2525                 dev_priv->hotplug_supported_mask |= SDVOB_HOTPLUG_INT_STATUS;
2526         else
2527                 dev_priv->hotplug_supported_mask |= SDVOC_HOTPLUG_INT_STATUS;
2528
2529         drm_encoder_helper_add(&intel_encoder->base, &intel_sdvo_helper_funcs);
2530
2531         /* In default case sdvo lvds is false */
2532         if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
2533                 goto err;
2534
2535         /* Set up hotplug command - note paranoia about contents of reply.
2536          * We assume that the hardware is in a sane state, and only touch
2537          * the bits we think we understand.
2538          */
2539         intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG,
2540                              &intel_sdvo->hotplug_active, 2);
2541         intel_sdvo->hotplug_active[0] &= ~0x3;
2542
2543         if (intel_sdvo_output_setup(intel_sdvo,
2544                                     intel_sdvo->caps.output_flags) != true) {
2545                 DRM_DEBUG_KMS("SDVO output failed to setup on %s\n",
2546                               SDVO_NAME(intel_sdvo));
2547                 goto err;
2548         }
2549
2550         intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo, sdvo_reg);
2551
2552         /* Set the input timing to the screen. Assume always input 0. */
2553         if (!intel_sdvo_set_target_input(intel_sdvo))
2554                 goto err;
2555
2556         if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
2557                                                     &intel_sdvo->pixel_clock_min,
2558                                                     &intel_sdvo->pixel_clock_max))
2559                 goto err;
2560
2561         DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
2562                         "clock range %dMHz - %dMHz, "
2563                         "input 1: %c, input 2: %c, "
2564                         "output 1: %c, output 2: %c\n",
2565                         SDVO_NAME(intel_sdvo),
2566                         intel_sdvo->caps.vendor_id, intel_sdvo->caps.device_id,
2567                         intel_sdvo->caps.device_rev_id,
2568                         intel_sdvo->pixel_clock_min / 1000,
2569                         intel_sdvo->pixel_clock_max / 1000,
2570                         (intel_sdvo->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
2571                         (intel_sdvo->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
2572                         /* check currently supported outputs */
2573                         intel_sdvo->caps.output_flags &
2574                         (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
2575                         intel_sdvo->caps.output_flags &
2576                         (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
2577         return true;
2578
2579 err:
2580         drm_encoder_cleanup(&intel_encoder->base);
2581         i2c_del_adapter(&intel_sdvo->ddc);
2582         kfree(intel_sdvo);
2583
2584         return false;
2585 }