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 <drm/drmP.h>
  33 #include <drm/drm_crtc.h>
  34 #include <drm/drm_edid.h>
  35 #include "intel_drv.h"
  36 #include <drm/i915_drm.h>
  37 #include "i915_drv.h"
  38 #include "intel_sdvo_regs.h"
  39
  40 #define SDVO_TMDS_MASK (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)
  41 #define SDVO_RGB_MASK  (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1)
  42 #define SDVO_LVDS_MASK (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1)
  43 #define SDVO_TV_MASK   (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_YPRPB0)
  44
  45 #define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK |\
  46                         SDVO_TV_MASK)
  47
  48 #define IS_TV(c)        (c->output_flag & SDVO_TV_MASK)
  49 #define IS_TMDS(c)      (c->output_flag & SDVO_TMDS_MASK)
  50 #define IS_LVDS(c)      (c->output_flag & SDVO_LVDS_MASK)
  51 #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
  52 #define IS_DIGITAL(c) (c->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK))
  53
  54
  55 static const char *tv_format_names[] = {
  56         "NTSC_M"   , "NTSC_J"  , "NTSC_443",
  57         "PAL_B"    , "PAL_D"   , "PAL_G"   ,
  58         "PAL_H"    , "PAL_I"   , "PAL_M"   ,
  59         "PAL_N"    , "PAL_NC"  , "PAL_60"  ,
  60         "SECAM_B"  , "SECAM_D" , "SECAM_G" ,
  61         "SECAM_K"  , "SECAM_K1", "SECAM_L" ,
  62         "SECAM_60"
  63 };
  64
  65 #define TV_FORMAT_NUM  (sizeof(tv_format_names) / sizeof(*tv_format_names))
  66
  67 struct intel_sdvo {
  68         struct intel_encoder base;
  69
  70         struct i2c_adapter *i2c;
  71         u8 slave_addr;
  72
  73         struct i2c_adapter ddc;
  74
  75         /* Register for the SDVO device: SDVOB or SDVOC */
  76         uint32_t sdvo_reg;
  77
  78         /* Active outputs controlled by this SDVO output */
  79         uint16_t controlled_output;
  80
  81         /*
  82          * Capabilities of the SDVO device returned by
  83          * i830_sdvo_get_capabilities()
  84          */
  85         struct intel_sdvo_caps caps;
  86
  87         /* Pixel clock limitations reported by the SDVO device, in kHz */
  88         int pixel_clock_min, pixel_clock_max;
  89
  90         /*
  91         * For multiple function SDVO device,
  92         * this is for current attached outputs.
  93         */
  94         uint16_t attached_output;
  95
  96         /*
  97          * Hotplug activation bits for this device
  98          */
  99         uint16_t hotplug_active;
 100
 101         /**
 102          * This is used to select the color range of RBG outputs in HDMI mode.
 103          * It is only valid when using TMDS encoding and 8 bit per color mode.
 104          */
 105         uint32_t color_range;
 106         bool color_range_auto;
 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         bool rgb_quant_range_selectable;
 130
 131         /**
 132          * This is set if we detect output of sdvo device as LVDS and
 133          * have a valid fixed mode to use with the panel.
 134          */
 135         bool is_lvds;
 136
 137         /**
 138          * This is sdvo fixed pannel mode pointer
 139          */
 140         struct drm_display_mode *sdvo_lvds_fixed_mode;
 141
 142         /* DDC bus used by this SDVO encoder */
 143         uint8_t ddc_bus;
 144
 145         /*
 146          * the sdvo flag gets lost in round trip: dtd->adjusted_mode->dtd
 147          */
 148         uint8_t dtd_sdvo_flags;
 149 };
 150
 151 struct intel_sdvo_connector {
 152         struct intel_connector base;
 153
 154         /* Mark the type of connector */
 155         uint16_t output_flag;
 156
 157         enum hdmi_force_audio force_audio;
 158
 159         /* This contains all current supported TV format */
 160         u8 tv_format_supported[TV_FORMAT_NUM];
 161         int   format_supported_num;
 162         struct drm_property *tv_format;
 163
 164         /* add the property for the SDVO-TV */
 165         struct drm_property *left;
 166         struct drm_property *right;
 167         struct drm_property *top;
 168         struct drm_property *bottom;
 169         struct drm_property *hpos;
 170         struct drm_property *vpos;
 171         struct drm_property *contrast;
 172         struct drm_property *saturation;
 173         struct drm_property *hue;
 174         struct drm_property *sharpness;
 175         struct drm_property *flicker_filter;
 176         struct drm_property *flicker_filter_adaptive;
 177         struct drm_property *flicker_filter_2d;
 178         struct drm_property *tv_chroma_filter;
 179         struct drm_property *tv_luma_filter;
 180         struct drm_property *dot_crawl;
 181
 182         /* add the property for the SDVO-TV/LVDS */
 183         struct drm_property *brightness;
 184
 185         /* Add variable to record current setting for the above property */
 186         u32     left_margin, right_margin, top_margin, bottom_margin;
 187
 188         /* this is to get the range of margin.*/
 189         u32     max_hscan,  max_vscan;
 190         u32     max_hpos, cur_hpos;
 191         u32     max_vpos, cur_vpos;
 192         u32     cur_brightness, max_brightness;
 193         u32     cur_contrast,   max_contrast;
 194         u32     cur_saturation, max_saturation;
 195         u32     cur_hue,        max_hue;
 196         u32     cur_sharpness,  max_sharpness;
 197         u32     cur_flicker_filter,             max_flicker_filter;
 198         u32     cur_flicker_filter_adaptive,    max_flicker_filter_adaptive;
 199         u32     cur_flicker_filter_2d,          max_flicker_filter_2d;
 200         u32     cur_tv_chroma_filter,   max_tv_chroma_filter;
 201         u32     cur_tv_luma_filter,     max_tv_luma_filter;
 202         u32     cur_dot_crawl,  max_dot_crawl;
 203 };
 204
 205 static struct intel_sdvo *to_intel_sdvo(struct drm_encoder *encoder)
 206 {
 207         return container_of(encoder, struct intel_sdvo, base.base);
 208 }
 209
 210 static struct intel_sdvo *intel_attached_sdvo(struct drm_connector *connector)
 211 {
 212         return container_of(intel_attached_encoder(connector),
 213                             struct intel_sdvo, base);
 214 }
 215
 216 static struct intel_sdvo_connector *to_intel_sdvo_connector(struct drm_connector *connector)
 217 {
 218         return container_of(to_intel_connector(connector), struct intel_sdvo_connector, base);
 219 }
 220
 221 static bool
 222 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags);
 223 static bool
 224 intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
 225                               struct intel_sdvo_connector *intel_sdvo_connector,
 226                               int type);
 227 static bool
 228 intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
 229                                    struct intel_sdvo_connector *intel_sdvo_connector);
 230
 231 /**
 232  * Writes the SDVOB or SDVOC with the given value, but always writes both
 233  * SDVOB and SDVOC to work around apparent hardware issues (according to
 234  * comments in the BIOS).
 235  */
 236 static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val)
 237 {
 238         struct drm_device *dev = intel_sdvo->base.base.dev;
 239         struct drm_i915_private *dev_priv = dev->dev_private;
 240         u32 bval = val, cval = val;
 241         int i;
 242
 243         if (intel_sdvo->sdvo_reg == PCH_SDVOB) {
 244                 I915_WRITE(intel_sdvo->sdvo_reg, val);
 245                 I915_READ(intel_sdvo->sdvo_reg);
 246                 return;
 247         }
 248
 249         if (intel_sdvo->sdvo_reg == SDVOB) {
 250                 cval = I915_READ(SDVOC);
 251         } else {
 252                 bval = I915_READ(SDVOB);
 253         }
 254         /*
 255          * Write the registers twice for luck. Sometimes,
 256          * writing them only once doesn't appear to 'stick'.
 257          * The BIOS does this too. Yay, magic
 258          */
 259         for (i = 0; i < 2; i++)
 260         {
 261                 I915_WRITE(SDVOB, bval);
 262                 I915_READ(SDVOB);
 263                 I915_WRITE(SDVOC, cval);
 264                 I915_READ(SDVOC);
 265         }
 266 }
 267
 268 static bool intel_sdvo_read_byte(struct intel_sdvo *intel_sdvo, u8 addr, u8 *ch)
 269 {
 270         struct i2c_msg msgs[] = {
 271                 {
 272                         .addr = intel_sdvo->slave_addr,
 273                         .flags = 0,
 274                         .len = 1,
 275                         .buf = &addr,
 276                 },
 277                 {
 278                         .addr = intel_sdvo->slave_addr,
 279                         .flags = I2C_M_RD,
 280                         .len = 1,
 281                         .buf = ch,
 282                 }
 283         };
 284         int ret;
 285
 286         if ((ret = i2c_transfer(intel_sdvo->i2c, msgs, 2)) == 2)
 287                 return true;
 288
 289         DRM_DEBUG_KMS("i2c transfer returned %d\n", ret);
 290         return false;
 291 }
 292
 293 #define SDVO_CMD_NAME_ENTRY(cmd) {cmd, #cmd}
 294 /** Mapping of command numbers to names, for debug output */
 295 static const struct _sdvo_cmd_name {
 296         u8 cmd;
 297         const char *name;
 298 } sdvo_cmd_names[] = {
 299         SDVO_CMD_NAME_ENTRY(SDVO_CMD_RESET),
 300         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DEVICE_CAPS),
 301         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FIRMWARE_REV),
 302         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TRAINED_INPUTS),
 303         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_OUTPUTS),
 304         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_OUTPUTS),
 305         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_IN_OUT_MAP),
 306         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_IN_OUT_MAP),
 307         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ATTACHED_DISPLAYS),
 308         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HOT_PLUG_SUPPORT),
 309         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_HOT_PLUG),
 310         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_HOT_PLUG),
 311         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INTERRUPT_EVENT_SOURCE),
 312         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_INPUT),
 313         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_OUTPUT),
 314         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART1),
 315         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART2),
 316         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 317         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART2),
 318         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 319         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART1),
 320         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART2),
 321         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART1),
 322         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART2),
 323         SDVO_CMD_NAME_ENTRY(SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING),
 324         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1),
 325         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2),
 326         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE),
 327         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_PIXEL_CLOCK_RANGE),
 328         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_CLOCK_RATE_MULTS),
 329         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CLOCK_RATE_MULT),
 330         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CLOCK_RATE_MULT),
 331         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_TV_FORMATS),
 332         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_FORMAT),
 333         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_FORMAT),
 334         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_POWER_STATES),
 335         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_POWER_STATE),
 336         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODER_POWER_STATE),
 337         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DISPLAY_POWER_STATE),
 338         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTROL_BUS_SWITCH),
 339         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT),
 340         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SCALED_HDTV_RESOLUTION_SUPPORT),
 341         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS),
 342
 343         /* Add the op code for SDVO enhancements */
 344         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HPOS),
 345         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HPOS),
 346         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HPOS),
 347         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_VPOS),
 348         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_VPOS),
 349         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_VPOS),
 350         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SATURATION),
 351         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SATURATION),
 352         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SATURATION),
 353         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HUE),
 354         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HUE),
 355         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HUE),
 356         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_CONTRAST),
 357         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CONTRAST),
 358         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTRAST),
 359         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_BRIGHTNESS),
 360         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_BRIGHTNESS),
 361         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_BRIGHTNESS),
 362         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_H),
 363         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_H),
 364         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_H),
 365         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_V),
 366         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_V),
 367         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_V),
 368         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER),
 369         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER),
 370         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER),
 371         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_ADAPTIVE),
 372         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_ADAPTIVE),
 373         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_ADAPTIVE),
 374         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_2D),
 375         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_2D),
 376         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_2D),
 377         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SHARPNESS),
 378         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SHARPNESS),
 379         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SHARPNESS),
 380         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DOT_CRAWL),
 381         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DOT_CRAWL),
 382         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_CHROMA_FILTER),
 383         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_CHROMA_FILTER),
 384         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_CHROMA_FILTER),
 385         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_LUMA_FILTER),
 386         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_LUMA_FILTER),
 387         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_LUMA_FILTER),
 388
 389         /* HDMI op code */
 390         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPP_ENCODE),
 391         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ENCODE),
 392         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODE),
 393         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_PIXEL_REPLI),
 394         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PIXEL_REPLI),
 395         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY_CAP),
 396         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_COLORIMETRY),
 397         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY),
 398         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_ENCRYPT_PREFER),
 399         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_AUDIO_STAT),
 400         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_STAT),
 401         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INDEX),
 402         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_INDEX),
 403         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INFO),
 404         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_AV_SPLIT),
 405         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_AV_SPLIT),
 406         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_TXRATE),
 407         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_TXRATE),
 408         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_DATA),
 409         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_DATA),
 410 };
 411
 412 #define SDVO_NAME(svdo) ((svdo)->is_sdvob ? "SDVOB" : "SDVOC")
 413
 414 static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd,
 415                                    const void *args, int args_len)
 416 {
 417         int i;
 418
 419         DRM_DEBUG_KMS("%s: W: %02X ",
 420                                 SDVO_NAME(intel_sdvo), cmd);
 421         for (i = 0; i < args_len; i++)
 422                 DRM_LOG_KMS("%02X ", ((u8 *)args)[i]);
 423         for (; i < 8; i++)
 424                 DRM_LOG_KMS("   ");
 425         for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) {
 426                 if (cmd == sdvo_cmd_names[i].cmd) {
 427                         DRM_LOG_KMS("(%s)", sdvo_cmd_names[i].name);
 428                         break;
 429                 }
 430         }
 431         if (i == ARRAY_SIZE(sdvo_cmd_names))
 432                 DRM_LOG_KMS("(%02X)", cmd);
 433         DRM_LOG_KMS("\n");
 434 }
 435
 436 static const char *cmd_status_names[] = {
 437         "Power on",
 438         "Success",
 439         "Not supported",
 440         "Invalid arg",
 441         "Pending",
 442         "Target not specified",
 443         "Scaling not supported"
 444 };
 445
 446 static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
 447                                  const void *args, int args_len)
 448 {
 449         u8 *buf, status;
 450         struct i2c_msg *msgs;
 451         int i, ret = true;
 452
 453         /* Would be simpler to allocate both in one go ? */
 454         buf = (u8 *)kzalloc(args_len * 2 + 2, GFP_KERNEL);
 455         if (!buf)
 456                 return false;
 457
 458         msgs = kcalloc(args_len + 3, sizeof(*msgs), GFP_KERNEL);
 459         if (!msgs) {
 460                 kfree(buf);
 461                 return false;
 462         }
 463
 464         intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
 465
 466         for (i = 0; i < args_len; i++) {
 467                 msgs[i].addr = intel_sdvo->slave_addr;
 468                 msgs[i].flags = 0;
 469                 msgs[i].len = 2;
 470                 msgs[i].buf = buf + 2 *i;
 471                 buf[2*i + 0] = SDVO_I2C_ARG_0 - i;
 472                 buf[2*i + 1] = ((u8*)args)[i];
 473         }
 474         msgs[i].addr = intel_sdvo->slave_addr;
 475         msgs[i].flags = 0;
 476         msgs[i].len = 2;
 477         msgs[i].buf = buf + 2*i;
 478         buf[2*i + 0] = SDVO_I2C_OPCODE;
 479         buf[2*i + 1] = cmd;
 480
 481         /* the following two are to read the response */
 482         status = SDVO_I2C_CMD_STATUS;
 483         msgs[i+1].addr = intel_sdvo->slave_addr;
 484         msgs[i+1].flags = 0;
 485         msgs[i+1].len = 1;
 486         msgs[i+1].buf = &status;
 487
 488         msgs[i+2].addr = intel_sdvo->slave_addr;
 489         msgs[i+2].flags = I2C_M_RD;
 490         msgs[i+2].len = 1;
 491         msgs[i+2].buf = &status;
 492
 493         ret = i2c_transfer(intel_sdvo->i2c, msgs, i+3);
 494         if (ret < 0) {
 495                 DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
 496                 ret = false;
 497                 goto out;
 498         }
 499         if (ret != i+3) {
 500                 /* failure in I2C transfer */
 501                 DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3);
 502                 ret = false;
 503         }
 504
 505 out:
 506         kfree(msgs);
 507         kfree(buf);
 508         return ret;
 509 }
 510
 511 static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
 512                                      void *response, int response_len)
 513 {
 514         u8 retry = 15; /* 5 quick checks, followed by 10 long checks */
 515         u8 status;
 516         int i;
 517
 518         DRM_DEBUG_KMS("%s: R: ", SDVO_NAME(intel_sdvo));
 519
 520         /*
 521          * The documentation states that all commands will be
 522          * processed within 15µs, and that we need only poll
 523          * the status byte a maximum of 3 times in order for the
 524          * command to be complete.
 525          *
 526          * Check 5 times in case the hardware failed to read the docs.
 527          *
 528          * Also beware that the first response by many devices is to
 529          * reply PENDING and stall for time. TVs are notorious for
 530          * requiring longer than specified to complete their replies.
 531          * Originally (in the DDX long ago), the delay was only ever 15ms
 532          * with an additional delay of 30ms applied for TVs added later after
 533          * many experiments. To accommodate both sets of delays, we do a
 534          * sequence of slow checks if the device is falling behind and fails
 535          * to reply within 5*15µs.
 536          */
 537         if (!intel_sdvo_read_byte(intel_sdvo,
 538                                   SDVO_I2C_CMD_STATUS,
 539                                   &status))
 540                 goto log_fail;
 541
 542         while (status == SDVO_CMD_STATUS_PENDING && --retry) {
 543                 if (retry < 10)
 544                         msleep(15);
 545                 else
 546                         udelay(15);
 547
 548                 if (!intel_sdvo_read_byte(intel_sdvo,
 549                                           SDVO_I2C_CMD_STATUS,
 550                                           &status))
 551                         goto log_fail;
 552         }
 553
 554         if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
 555                 DRM_LOG_KMS("(%s)", cmd_status_names[status]);
 556         else
 557                 DRM_LOG_KMS("(??? %d)", status);
 558
 559         if (status != SDVO_CMD_STATUS_SUCCESS)
 560                 goto log_fail;
 561
 562         /* Read the command response */
 563         for (i = 0; i < response_len; i++) {
 564                 if (!intel_sdvo_read_byte(intel_sdvo,
 565                                           SDVO_I2C_RETURN_0 + i,
 566                                           &((u8 *)response)[i]))
 567                         goto log_fail;
 568                 DRM_LOG_KMS(" %02X", ((u8 *)response)[i]);
 569         }
 570         DRM_LOG_KMS("\n");
 571         return true;
 572
 573 log_fail:
 574         DRM_LOG_KMS("... failed\n");
 575         return false;
 576 }
 577
 578 static int intel_sdvo_get_pixel_multiplier(struct drm_display_mode *mode)
 579 {
 580         if (mode->clock >= 100000)
 581                 return 1;
 582         else if (mode->clock >= 50000)
 583                 return 2;
 584         else
 585                 return 4;
 586 }
 587
 588 static bool intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo,
 589                                               u8 ddc_bus)
 590 {
 591         /* This must be the immediately preceding write before the i2c xfer */
 592         return intel_sdvo_write_cmd(intel_sdvo,
 593                                     SDVO_CMD_SET_CONTROL_BUS_SWITCH,
 594                                     &ddc_bus, 1);
 595 }
 596
 597 static bool intel_sdvo_set_value(struct intel_sdvo *intel_sdvo, u8 cmd, const void *data, int len)
 598 {
 599         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, data, len))
 600                 return false;
 601
 602         return intel_sdvo_read_response(intel_sdvo, NULL, 0);
 603 }
 604
 605 static bool
 606 intel_sdvo_get_value(struct intel_sdvo *intel_sdvo, u8 cmd, void *value, int len)
 607 {
 608         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, NULL, 0))
 609                 return false;
 610
 611         return intel_sdvo_read_response(intel_sdvo, value, len);
 612 }
 613
 614 static bool intel_sdvo_set_target_input(struct intel_sdvo *intel_sdvo)
 615 {
 616         struct intel_sdvo_set_target_input_args targets = {0};
 617         return intel_sdvo_set_value(intel_sdvo,
 618                                     SDVO_CMD_SET_TARGET_INPUT,
 619                                     &targets, sizeof(targets));
 620 }
 621
 622 /**
 623  * Return whether each input is trained.
 624  *
 625  * This function is making an assumption about the layout of the response,
 626  * which should be checked against the docs.
 627  */
 628 static bool intel_sdvo_get_trained_inputs(struct intel_sdvo *intel_sdvo, bool *input_1, bool *input_2)
 629 {
 630         struct intel_sdvo_get_trained_inputs_response response;
 631
 632         BUILD_BUG_ON(sizeof(response) != 1);
 633         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_TRAINED_INPUTS,
 634                                   &response, sizeof(response)))
 635                 return false;
 636
 637         *input_1 = response.input0_trained;
 638         *input_2 = response.input1_trained;
 639         return true;
 640 }
 641
 642 static bool intel_sdvo_set_active_outputs(struct intel_sdvo *intel_sdvo,
 643                                           u16 outputs)
 644 {
 645         return intel_sdvo_set_value(intel_sdvo,
 646                                     SDVO_CMD_SET_ACTIVE_OUTPUTS,
 647                                     &outputs, sizeof(outputs));
 648 }
 649
 650 static bool intel_sdvo_get_active_outputs(struct intel_sdvo *intel_sdvo,
 651                                           u16 *outputs)
 652 {
 653         return intel_sdvo_get_value(intel_sdvo,
 654                                     SDVO_CMD_GET_ACTIVE_OUTPUTS,
 655                                     outputs, sizeof(*outputs));
 656 }
 657
 658 static bool intel_sdvo_set_encoder_power_state(struct intel_sdvo *intel_sdvo,
 659                                                int mode)
 660 {
 661         u8 state = SDVO_ENCODER_STATE_ON;
 662
 663         switch (mode) {
 664         case DRM_MODE_DPMS_ON:
 665                 state = SDVO_ENCODER_STATE_ON;
 666                 break;
 667         case DRM_MODE_DPMS_STANDBY:
 668                 state = SDVO_ENCODER_STATE_STANDBY;
 669                 break;
 670         case DRM_MODE_DPMS_SUSPEND:
 671                 state = SDVO_ENCODER_STATE_SUSPEND;
 672                 break;
 673         case DRM_MODE_DPMS_OFF:
 674                 state = SDVO_ENCODER_STATE_OFF;
 675                 break;
 676         }
 677
 678         return intel_sdvo_set_value(intel_sdvo,
 679                                     SDVO_CMD_SET_ENCODER_POWER_STATE, &state, sizeof(state));
 680 }
 681
 682 static bool intel_sdvo_get_input_pixel_clock_range(struct intel_sdvo *intel_sdvo,
 683                                                    int *clock_min,
 684                                                    int *clock_max)
 685 {
 686         struct intel_sdvo_pixel_clock_range clocks;
 687
 688         BUILD_BUG_ON(sizeof(clocks) != 4);
 689         if (!intel_sdvo_get_value(intel_sdvo,
 690                                   SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
 691                                   &clocks, sizeof(clocks)))
 692                 return false;
 693
 694         /* Convert the values from units of 10 kHz to kHz. */
 695         *clock_min = clocks.min * 10;
 696         *clock_max = clocks.max * 10;
 697         return true;
 698 }
 699
 700 static bool intel_sdvo_set_target_output(struct intel_sdvo *intel_sdvo,
 701                                          u16 outputs)
 702 {
 703         return intel_sdvo_set_value(intel_sdvo,
 704                                     SDVO_CMD_SET_TARGET_OUTPUT,
 705                                     &outputs, sizeof(outputs));
 706 }
 707
 708 static bool intel_sdvo_set_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 709                                   struct intel_sdvo_dtd *dtd)
 710 {
 711         return intel_sdvo_set_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 712                 intel_sdvo_set_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 713 }
 714
 715 static bool intel_sdvo_set_input_timing(struct intel_sdvo *intel_sdvo,
 716                                          struct intel_sdvo_dtd *dtd)
 717 {
 718         return intel_sdvo_set_timing(intel_sdvo,
 719                                      SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd);
 720 }
 721
 722 static bool intel_sdvo_set_output_timing(struct intel_sdvo *intel_sdvo,
 723                                          struct intel_sdvo_dtd *dtd)
 724 {
 725         return intel_sdvo_set_timing(intel_sdvo,
 726                                      SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd);
 727 }
 728
 729 static bool
 730 intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 731                                          uint16_t clock,
 732                                          uint16_t width,
 733                                          uint16_t height)
 734 {
 735         struct intel_sdvo_preferred_input_timing_args args;
 736
 737         memset(&args, 0, sizeof(args));
 738         args.clock = clock;
 739         args.width = width;
 740         args.height = height;
 741         args.interlace = 0;
 742
 743         if (intel_sdvo->is_lvds &&
 744            (intel_sdvo->sdvo_lvds_fixed_mode->hdisplay != width ||
 745             intel_sdvo->sdvo_lvds_fixed_mode->vdisplay != height))
 746                 args.scaled = 1;
 747
 748         return intel_sdvo_set_value(intel_sdvo,
 749                                     SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
 750                                     &args, sizeof(args));
 751 }
 752
 753 static bool intel_sdvo_get_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 754                                                   struct intel_sdvo_dtd *dtd)
 755 {
 756         BUILD_BUG_ON(sizeof(dtd->part1) != 8);
 757         BUILD_BUG_ON(sizeof(dtd->part2) != 8);
 758         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
 759                                     &dtd->part1, sizeof(dtd->part1)) &&
 760                 intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
 761                                      &dtd->part2, sizeof(dtd->part2));
 762 }
 763
 764 static bool intel_sdvo_set_clock_rate_mult(struct intel_sdvo *intel_sdvo, u8 val)
 765 {
 766         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
 767 }
 768
 769 static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
 770                                          const struct drm_display_mode *mode)
 771 {
 772         uint16_t width, height;
 773         uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len;
 774         uint16_t h_sync_offset, v_sync_offset;
 775         int mode_clock;
 776
 777         width = mode->hdisplay;
 778         height = mode->vdisplay;
 779
 780         /* do some mode translations */
 781         h_blank_len = mode->htotal - mode->hdisplay;
 782         h_sync_len = mode->hsync_end - mode->hsync_start;
 783
 784         v_blank_len = mode->vtotal - mode->vdisplay;
 785         v_sync_len = mode->vsync_end - mode->vsync_start;
 786
 787         h_sync_offset = mode->hsync_start - mode->hdisplay;
 788         v_sync_offset = mode->vsync_start - mode->vdisplay;
 789
 790         mode_clock = mode->clock;
 791         mode_clock /= intel_mode_get_pixel_multiplier(mode) ?: 1;
 792         mode_clock /= 10;
 793         dtd->part1.clock = mode_clock;
 794
 795         dtd->part1.h_active = width & 0xff;
 796         dtd->part1.h_blank = h_blank_len & 0xff;
 797         dtd->part1.h_high = (((width >> 8) & 0xf) << 4) |
 798                 ((h_blank_len >> 8) & 0xf);
 799         dtd->part1.v_active = height & 0xff;
 800         dtd->part1.v_blank = v_blank_len & 0xff;
 801         dtd->part1.v_high = (((height >> 8) & 0xf) << 4) |
 802                 ((v_blank_len >> 8) & 0xf);
 803
 804         dtd->part2.h_sync_off = h_sync_offset & 0xff;
 805         dtd->part2.h_sync_width = h_sync_len & 0xff;
 806         dtd->part2.v_sync_off_width = (v_sync_offset & 0xf) << 4 |
 807                 (v_sync_len & 0xf);
 808         dtd->part2.sync_off_width_high = ((h_sync_offset & 0x300) >> 2) |
 809                 ((h_sync_len & 0x300) >> 4) | ((v_sync_offset & 0x30) >> 2) |
 810                 ((v_sync_len & 0x30) >> 4);
 811
 812         dtd->part2.dtd_flags = 0x18;
 813         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 814                 dtd->part2.dtd_flags |= DTD_FLAG_INTERLACE;
 815         if (mode->flags & DRM_MODE_FLAG_PHSYNC)
 816                 dtd->part2.dtd_flags |= DTD_FLAG_HSYNC_POSITIVE;
 817         if (mode->flags & DRM_MODE_FLAG_PVSYNC)
 818                 dtd->part2.dtd_flags |= DTD_FLAG_VSYNC_POSITIVE;
 819
 820         dtd->part2.sdvo_flags = 0;
 821         dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
 822         dtd->part2.reserved = 0;
 823 }
 824
 825 static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode,
 826                                          const struct intel_sdvo_dtd *dtd)
 827 {
 828         mode->hdisplay = dtd->part1.h_active;
 829         mode->hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
 830         mode->hsync_start = mode->hdisplay + dtd->part2.h_sync_off;
 831         mode->hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
 832         mode->hsync_end = mode->hsync_start + dtd->part2.h_sync_width;
 833         mode->hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
 834         mode->htotal = mode->hdisplay + dtd->part1.h_blank;
 835         mode->htotal += (dtd->part1.h_high & 0xf) << 8;
 836
 837         mode->vdisplay = dtd->part1.v_active;
 838         mode->vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
 839         mode->vsync_start = mode->vdisplay;
 840         mode->vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
 841         mode->vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
 842         mode->vsync_start += dtd->part2.v_sync_off_high & 0xc0;
 843         mode->vsync_end = mode->vsync_start +
 844                 (dtd->part2.v_sync_off_width & 0xf);
 845         mode->vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
 846         mode->vtotal = mode->vdisplay + dtd->part1.v_blank;
 847         mode->vtotal += (dtd->part1.v_high & 0xf) << 8;
 848
 849         mode->clock = dtd->part1.clock * 10;
 850
 851         mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
 852         if (dtd->part2.dtd_flags & DTD_FLAG_INTERLACE)
 853                 mode->flags |= DRM_MODE_FLAG_INTERLACE;
 854         if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
 855                 mode->flags |= DRM_MODE_FLAG_PHSYNC;
 856         if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
 857                 mode->flags |= DRM_MODE_FLAG_PVSYNC;
 858 }
 859
 860 static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo)
 861 {
 862         struct intel_sdvo_encode encode;
 863
 864         BUILD_BUG_ON(sizeof(encode) != 2);
 865         return intel_sdvo_get_value(intel_sdvo,
 866                                   SDVO_CMD_GET_SUPP_ENCODE,
 867                                   &encode, sizeof(encode));
 868 }
 869
 870 static bool intel_sdvo_set_encode(struct intel_sdvo *intel_sdvo,
 871                                   uint8_t mode)
 872 {
 873         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_ENCODE, &mode, 1);
 874 }
 875
 876 static bool intel_sdvo_set_colorimetry(struct intel_sdvo *intel_sdvo,
 877                                        uint8_t mode)
 878 {
 879         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
 880 }
 881
 882 #if 0
 883 static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
 884 {
 885         int i, j;
 886         uint8_t set_buf_index[2];
 887         uint8_t av_split;
 888         uint8_t buf_size;
 889         uint8_t buf[48];
 890         uint8_t *pos;
 891
 892         intel_sdvo_get_value(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, &av_split, 1);
 893
 894         for (i = 0; i <= av_split; i++) {
 895                 set_buf_index[0] = i; set_buf_index[1] = 0;
 896                 intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX,
 897                                      set_buf_index, 2);
 898                 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
 899                 intel_sdvo_read_response(encoder, &buf_size, 1);
 900
 901                 pos = buf;
 902                 for (j = 0; j <= buf_size; j += 8) {
 903                         intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA,
 904                                              NULL, 0);
 905                         intel_sdvo_read_response(encoder, pos, 8);
 906                         pos += 8;
 907                 }
 908         }
 909 }
 910 #endif
 911
 912 static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo,
 913                                        unsigned if_index, uint8_t tx_rate,
 914                                        uint8_t *data, unsigned length)
 915 {
 916         uint8_t set_buf_index[2] = { if_index, 0 };
 917         uint8_t hbuf_size, tmp[8];
 918         int i;
 919
 920         if (!intel_sdvo_set_value(intel_sdvo,
 921                                   SDVO_CMD_SET_HBUF_INDEX,
 922                                   set_buf_index, 2))
 923                 return false;
 924
 925         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HBUF_INFO,
 926                                   &hbuf_size, 1))
 927                 return false;
 928
 929         /* Buffer size is 0 based, hooray! */
 930         hbuf_size++;
 931
 932         DRM_DEBUG_KMS("writing sdvo hbuf: %i, hbuf_size %i, hbuf_size: %i\n",
 933                       if_index, length, hbuf_size);
 934
 935         for (i = 0; i < hbuf_size; i += 8) {
 936                 memset(tmp, 0, 8);
 937                 if (i < length)
 938                         memcpy(tmp, data + i, min_t(unsigned, 8, length - i));
 939
 940                 if (!intel_sdvo_set_value(intel_sdvo,
 941                                           SDVO_CMD_SET_HBUF_DATA,
 942                                           tmp, 8))
 943                         return false;
 944         }
 945
 946         return intel_sdvo_set_value(intel_sdvo,
 947                                     SDVO_CMD_SET_HBUF_TXRATE,
 948                                     &tx_rate, 1);
 949 }
 950
 951 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
 952                                          const struct drm_display_mode *adjusted_mode)
 953 {
 954         struct dip_infoframe avi_if = {
 955                 .type = DIP_TYPE_AVI,
 956                 .ver = DIP_VERSION_AVI,
 957                 .len = DIP_LEN_AVI,
 958         };
 959         uint8_t sdvo_data[4 + sizeof(avi_if.body.avi)];
 960
 961         if (intel_sdvo->rgb_quant_range_selectable) {
 962                 if (adjusted_mode->private_flags & INTEL_MODE_LIMITED_COLOR_RANGE)
 963                         avi_if.body.avi.ITC_EC_Q_SC |= DIP_AVI_RGB_QUANT_RANGE_LIMITED;
 964                 else
 965                         avi_if.body.avi.ITC_EC_Q_SC |= DIP_AVI_RGB_QUANT_RANGE_FULL;
 966         }
 967
 968         intel_dip_infoframe_csum(&avi_if);
 969
 970         /* sdvo spec says that the ecc is handled by the hw, and it looks like
 971          * we must not send the ecc field, either. */
 972         memcpy(sdvo_data, &avi_if, 3);
 973         sdvo_data[3] = avi_if.checksum;
 974         memcpy(&sdvo_data[4], &avi_if.body, sizeof(avi_if.body.avi));
 975
 976         return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF,
 977                                           SDVO_HBUF_TX_VSYNC,
 978                                           sdvo_data, sizeof(sdvo_data));
 979 }
 980
 981 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
 982 {
 983         struct intel_sdvo_tv_format format;
 984         uint32_t format_map;
 985
 986         format_map = 1 << intel_sdvo->tv_format_index;
 987         memset(&format, 0, sizeof(format));
 988         memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map)));
 989
 990         BUILD_BUG_ON(sizeof(format) != 6);
 991         return intel_sdvo_set_value(intel_sdvo,
 992                                     SDVO_CMD_SET_TV_FORMAT,
 993                                     &format, sizeof(format));
 994 }
 995
 996 static bool
 997 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
 998                                         const struct drm_display_mode *mode)
 999 {
1000         struct intel_sdvo_dtd output_dtd;
1001
1002         if (!intel_sdvo_set_target_output(intel_sdvo,
1003                                           intel_sdvo->attached_output))
1004                 return false;
1005
1006         intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1007         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1008                 return false;
1009
1010         return true;
1011 }
1012
1013 /* Asks the sdvo controller for the preferred input mode given the output mode.
1014  * Unfortunately we have to set up the full output mode to do that. */
1015 static bool
1016 intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
1017                                     const struct drm_display_mode *mode,
1018                                     struct drm_display_mode *adjusted_mode)
1019 {
1020         struct intel_sdvo_dtd input_dtd;
1021
1022         /* Reset the input timing to the screen. Assume always input 0. */
1023         if (!intel_sdvo_set_target_input(intel_sdvo))
1024                 return false;
1025
1026         if (!intel_sdvo_create_preferred_input_timing(intel_sdvo,
1027                                                       mode->clock / 10,
1028                                                       mode->hdisplay,
1029                                                       mode->vdisplay))
1030                 return false;
1031
1032         if (!intel_sdvo_get_preferred_input_timing(intel_sdvo,
1033                                                    &input_dtd))
1034                 return false;
1035
1036         intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd);
1037         intel_sdvo->dtd_sdvo_flags = input_dtd.part2.sdvo_flags;
1038
1039         return true;
1040 }
1041
1042 static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
1043                                   const struct drm_display_mode *mode,
1044                                   struct drm_display_mode *adjusted_mode)
1045 {
1046         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
1047         int multiplier;
1048
1049         /* We need to construct preferred input timings based on our
1050          * output timings.  To do that, we have to set the output
1051          * timings, even though this isn't really the right place in
1052          * the sequence to do it. Oh well.
1053          */
1054         if (intel_sdvo->is_tv) {
1055                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
1056                         return false;
1057
1058                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1059                                                            mode,
1060                                                            adjusted_mode);
1061         } else if (intel_sdvo->is_lvds) {
1062                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
1063                                                              intel_sdvo->sdvo_lvds_fixed_mode))
1064                         return false;
1065
1066                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1067                                                            mode,
1068                                                            adjusted_mode);
1069         }
1070
1071         /* Make the CRTC code factor in the SDVO pixel multiplier.  The
1072          * SDVO device will factor out the multiplier during mode_set.
1073          */
1074         multiplier = intel_sdvo_get_pixel_multiplier(adjusted_mode);
1075         intel_mode_set_pixel_multiplier(adjusted_mode, multiplier);
1076
1077         if (intel_sdvo->color_range_auto) {
1078                 /* See CEA-861-E - 5.1 Default Encoding Parameters */
1079                 if (intel_sdvo->has_hdmi_monitor &&
1080                     drm_match_cea_mode(adjusted_mode) > 1)
1081                         intel_sdvo->color_range = SDVO_COLOR_RANGE_16_235;
1082                 else
1083                         intel_sdvo->color_range = 0;
1084         }
1085
1086         if (intel_sdvo->color_range)
1087                 adjusted_mode->private_flags |= INTEL_MODE_LIMITED_COLOR_RANGE;
1088
1089         return true;
1090 }
1091
1092 static void intel_sdvo_mode_set(struct drm_encoder *encoder,
1093                                 struct drm_display_mode *mode,
1094                                 struct drm_display_mode *adjusted_mode)
1095 {
1096         struct drm_device *dev = encoder->dev;
1097         struct drm_i915_private *dev_priv = dev->dev_private;
1098         struct drm_crtc *crtc = encoder->crtc;
1099         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1100         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
1101         u32 sdvox;
1102         struct intel_sdvo_in_out_map in_out;
1103         struct intel_sdvo_dtd input_dtd, output_dtd;
1104         int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
1105         int rate;
1106
1107         if (!mode)
1108                 return;
1109
1110         /* First, set the input mapping for the first input to our controlled
1111          * output. This is only correct if we're a single-input device, in
1112          * which case the first input is the output from the appropriate SDVO
1113          * channel on the motherboard.  In a two-input device, the first input
1114          * will be SDVOB and the second SDVOC.
1115          */
1116         in_out.in0 = intel_sdvo->attached_output;
1117         in_out.in1 = 0;
1118
1119         intel_sdvo_set_value(intel_sdvo,
1120                              SDVO_CMD_SET_IN_OUT_MAP,
1121                              &in_out, sizeof(in_out));
1122
1123         /* Set the output timings to the screen */
1124         if (!intel_sdvo_set_target_output(intel_sdvo,
1125                                           intel_sdvo->attached_output))
1126                 return;
1127
1128         /* lvds has a special fixed output timing. */
1129         if (intel_sdvo->is_lvds)
1130                 intel_sdvo_get_dtd_from_mode(&output_dtd,
1131                                              intel_sdvo->sdvo_lvds_fixed_mode);
1132         else
1133                 intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1134         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1135                 DRM_INFO("Setting output timings on %s failed\n",
1136                          SDVO_NAME(intel_sdvo));
1137
1138         /* Set the input timing to the screen. Assume always input 0. */
1139         if (!intel_sdvo_set_target_input(intel_sdvo))
1140                 return;
1141
1142         if (intel_sdvo->has_hdmi_monitor) {
1143                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI);
1144                 intel_sdvo_set_colorimetry(intel_sdvo,
1145                                            SDVO_COLORIMETRY_RGB256);
1146                 intel_sdvo_set_avi_infoframe(intel_sdvo, adjusted_mode);
1147         } else
1148                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);
1149
1150         if (intel_sdvo->is_tv &&
1151             !intel_sdvo_set_tv_format(intel_sdvo))
1152                 return;
1153
1154         /* We have tried to get input timing in mode_fixup, and filled into
1155          * adjusted_mode.
1156          */
1157         intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
1158         if (intel_sdvo->is_tv || intel_sdvo->is_lvds)
1159                 input_dtd.part2.sdvo_flags = intel_sdvo->dtd_sdvo_flags;
1160         if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd))
1161                 DRM_INFO("Setting input timings on %s failed\n",
1162                          SDVO_NAME(intel_sdvo));
1163
1164         switch (pixel_multiplier) {
1165         default:
1166         case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break;
1167         case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break;
1168         case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break;
1169         }
1170         if (!intel_sdvo_set_clock_rate_mult(intel_sdvo, rate))
1171                 return;
1172
1173         /* Set the SDVO control regs. */
1174         if (INTEL_INFO(dev)->gen >= 4) {
1175                 /* The real mode polarity is set by the SDVO commands, using
1176                  * struct intel_sdvo_dtd. */
1177                 sdvox = SDVO_VSYNC_ACTIVE_HIGH | SDVO_HSYNC_ACTIVE_HIGH;
1178                 if (!HAS_PCH_SPLIT(dev) && intel_sdvo->is_hdmi)
1179                         sdvox |= intel_sdvo->color_range;
1180                 if (INTEL_INFO(dev)->gen < 5)
1181                         sdvox |= SDVO_BORDER_ENABLE;
1182         } else {
1183                 sdvox = I915_READ(intel_sdvo->sdvo_reg);
1184                 switch (intel_sdvo->sdvo_reg) {
1185                 case SDVOB:
1186                         sdvox &= SDVOB_PRESERVE_MASK;
1187                         break;
1188                 case SDVOC:
1189                         sdvox &= SDVOC_PRESERVE_MASK;
1190                         break;
1191                 }
1192                 sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
1193         }
1194
1195         if (INTEL_PCH_TYPE(dev) >= PCH_CPT)
1196                 sdvox |= TRANSCODER_CPT(intel_crtc->pipe);
1197         else
1198                 sdvox |= TRANSCODER(intel_crtc->pipe);
1199
1200         if (intel_sdvo->has_hdmi_audio)
1201                 sdvox |= SDVO_AUDIO_ENABLE;
1202
1203         if (INTEL_INFO(dev)->gen >= 4) {
1204                 /* done in crtc_mode_set as the dpll_md reg must be written early */
1205         } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
1206                 /* done in crtc_mode_set as it lives inside the dpll register */
1207         } else {
1208                 sdvox |= (pixel_multiplier - 1) << SDVO_PORT_MULTIPLY_SHIFT;
1209         }
1210
1211         if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL &&
1212             INTEL_INFO(dev)->gen < 5)
1213                 sdvox |= SDVO_STALL_SELECT;
1214         intel_sdvo_write_sdvox(intel_sdvo, sdvox);
1215 }
1216
1217 static bool intel_sdvo_connector_get_hw_state(struct intel_connector *connector)
1218 {
1219         struct intel_sdvo_connector *intel_sdvo_connector =
1220                 to_intel_sdvo_connector(&connector->base);
1221         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(&connector->base);
1222         u16 active_outputs;
1223
1224         intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
1225
1226         if (active_outputs & intel_sdvo_connector->output_flag)
1227                 return true;
1228         else
1229                 return false;
1230 }
1231
1232 static bool intel_sdvo_get_hw_state(struct intel_encoder *encoder,
1233                                     enum pipe *pipe)
1234 {
1235         struct drm_device *dev = encoder->base.dev;
1236         struct drm_i915_private *dev_priv = dev->dev_private;
1237         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1238         u32 tmp;
1239
1240         tmp = I915_READ(intel_sdvo->sdvo_reg);
1241
1242         if (!(tmp & SDVO_ENABLE))
1243                 return false;
1244
1245         if (HAS_PCH_CPT(dev))
1246                 *pipe = PORT_TO_PIPE_CPT(tmp);
1247         else
1248                 *pipe = PORT_TO_PIPE(tmp);
1249
1250         return true;
1251 }
1252
1253 static void intel_disable_sdvo(struct intel_encoder *encoder)
1254 {
1255         struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
1256         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1257         u32 temp;
1258
1259         intel_sdvo_set_active_outputs(intel_sdvo, 0);
1260         if (0)
1261                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1262                                                    DRM_MODE_DPMS_OFF);
1263
1264         temp = I915_READ(intel_sdvo->sdvo_reg);
1265         if ((temp & SDVO_ENABLE) != 0) {
1266                 /* HW workaround for IBX, we need to move the port to
1267                  * transcoder A before disabling it. */
1268                 if (HAS_PCH_IBX(encoder->base.dev)) {
1269                         struct drm_crtc *crtc = encoder->base.crtc;
1270                         int pipe = crtc ? to_intel_crtc(crtc)->pipe : -1;
1271
1272                         if (temp & SDVO_PIPE_B_SELECT) {
1273                                 temp &= ~SDVO_PIPE_B_SELECT;
1274                                 I915_WRITE(intel_sdvo->sdvo_reg, temp);
1275                                 POSTING_READ(intel_sdvo->sdvo_reg);
1276
1277                                 /* Again we need to write this twice. */
1278                                 I915_WRITE(intel_sdvo->sdvo_reg, temp);
1279                                 POSTING_READ(intel_sdvo->sdvo_reg);
1280
1281                                 /* Transcoder selection bits only update
1282                                  * effectively on vblank. */
1283                                 if (crtc)
1284                                         intel_wait_for_vblank(encoder->base.dev, pipe);
1285                                 else
1286                                         msleep(50);
1287                         }
1288                 }
1289
1290                 intel_sdvo_write_sdvox(intel_sdvo, temp & ~SDVO_ENABLE);
1291         }
1292 }
1293
1294 static void intel_enable_sdvo(struct intel_encoder *encoder)
1295 {
1296         struct drm_device *dev = encoder->base.dev;
1297         struct drm_i915_private *dev_priv = dev->dev_private;
1298         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1299         struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
1300         u32 temp;
1301         bool input1, input2;
1302         int i;
1303         u8 status;
1304
1305         temp = I915_READ(intel_sdvo->sdvo_reg);
1306         if ((temp & SDVO_ENABLE) == 0) {
1307                 /* HW workaround for IBX, we need to move the port
1308                  * to transcoder A before disabling it. */
1309                 if (HAS_PCH_IBX(dev)) {
1310                         struct drm_crtc *crtc = encoder->base.crtc;
1311                         int pipe = crtc ? to_intel_crtc(crtc)->pipe : -1;
1312
1313                         /* Restore the transcoder select bit. */
1314                         if (pipe == PIPE_B)
1315                                 temp |= SDVO_PIPE_B_SELECT;
1316                 }
1317
1318                 intel_sdvo_write_sdvox(intel_sdvo, temp | SDVO_ENABLE);
1319         }
1320         for (i = 0; i < 2; i++)
1321                 intel_wait_for_vblank(dev, intel_crtc->pipe);
1322
1323         status = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2);
1324         /* Warn if the device reported failure to sync.
1325          * A lot of SDVO devices fail to notify of sync, but it's
1326          * a given it the status is a success, we succeeded.
1327          */
1328         if (status == SDVO_CMD_STATUS_SUCCESS && !input1) {
1329                 DRM_DEBUG_KMS("First %s output reported failure to "
1330                                 "sync\n", SDVO_NAME(intel_sdvo));
1331         }
1332
1333         if (0)
1334                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1335                                                    DRM_MODE_DPMS_ON);
1336         intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1337 }
1338
1339 static void intel_sdvo_dpms(struct drm_connector *connector, int mode)
1340 {
1341         struct drm_crtc *crtc;
1342         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1343
1344         /* dvo supports only 2 dpms states. */
1345         if (mode != DRM_MODE_DPMS_ON)
1346                 mode = DRM_MODE_DPMS_OFF;
1347
1348         if (mode == connector->dpms)
1349                 return;
1350
1351         connector->dpms = mode;
1352
1353         /* Only need to change hw state when actually enabled */
1354         crtc = intel_sdvo->base.base.crtc;
1355         if (!crtc) {
1356                 intel_sdvo->base.connectors_active = false;
1357                 return;
1358         }
1359
1360         if (mode != DRM_MODE_DPMS_ON) {
1361                 intel_sdvo_set_active_outputs(intel_sdvo, 0);
1362                 if (0)
1363                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1364
1365                 intel_sdvo->base.connectors_active = false;
1366
1367                 intel_crtc_update_dpms(crtc);
1368         } else {
1369                 intel_sdvo->base.connectors_active = true;
1370
1371                 intel_crtc_update_dpms(crtc);
1372
1373                 if (0)
1374                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1375                 intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1376         }
1377
1378         intel_modeset_check_state(connector->dev);
1379 }
1380
1381 static int intel_sdvo_mode_valid(struct drm_connector *connector,
1382                                  struct drm_display_mode *mode)
1383 {
1384         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1385
1386         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
1387                 return MODE_NO_DBLESCAN;
1388
1389         if (intel_sdvo->pixel_clock_min > mode->clock)
1390                 return MODE_CLOCK_LOW;
1391
1392         if (intel_sdvo->pixel_clock_max < mode->clock)
1393                 return MODE_CLOCK_HIGH;
1394
1395         if (intel_sdvo->is_lvds) {
1396                 if (mode->hdisplay > intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
1397                         return MODE_PANEL;
1398
1399                 if (mode->vdisplay > intel_sdvo->sdvo_lvds_fixed_mode->vdisplay)
1400                         return MODE_PANEL;
1401         }
1402
1403         return MODE_OK;
1404 }
1405
1406 static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct intel_sdvo_caps *caps)
1407 {
1408         BUILD_BUG_ON(sizeof(*caps) != 8);
1409         if (!intel_sdvo_get_value(intel_sdvo,
1410                                   SDVO_CMD_GET_DEVICE_CAPS,
1411                                   caps, sizeof(*caps)))
1412                 return false;
1413
1414         DRM_DEBUG_KMS("SDVO capabilities:\n"
1415                       "  vendor_id: %d\n"
1416                       "  device_id: %d\n"
1417                       "  device_rev_id: %d\n"
1418                       "  sdvo_version_major: %d\n"
1419                       "  sdvo_version_minor: %d\n"
1420                       "  sdvo_inputs_mask: %d\n"
1421                       "  smooth_scaling: %d\n"
1422                       "  sharp_scaling: %d\n"
1423                       "  up_scaling: %d\n"
1424                       "  down_scaling: %d\n"
1425                       "  stall_support: %d\n"
1426                       "  output_flags: %d\n",
1427                       caps->vendor_id,
1428                       caps->device_id,
1429                       caps->device_rev_id,
1430                       caps->sdvo_version_major,
1431                       caps->sdvo_version_minor,
1432                       caps->sdvo_inputs_mask,
1433                       caps->smooth_scaling,
1434                       caps->sharp_scaling,
1435                       caps->up_scaling,
1436                       caps->down_scaling,
1437                       caps->stall_support,
1438                       caps->output_flags);
1439
1440         return true;
1441 }
1442
1443 static uint16_t intel_sdvo_get_hotplug_support(struct intel_sdvo *intel_sdvo)
1444 {
1445         struct drm_device *dev = intel_sdvo->base.base.dev;
1446         uint16_t hotplug;
1447
1448         /* HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise
1449          * on the line. */
1450         if (IS_I945G(dev) || IS_I945GM(dev))
1451                 return 0;
1452
1453         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
1454                                         &hotplug, sizeof(hotplug)))
1455                 return 0;
1456
1457         return hotplug;
1458 }
1459
1460 static void intel_sdvo_enable_hotplug(struct intel_encoder *encoder)
1461 {
1462         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1463
1464         intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG,
1465                         &intel_sdvo->hotplug_active, 2);
1466 }
1467
1468 static bool
1469 intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
1470 {
1471         /* Is there more than one type of output? */
1472         return hweight16(intel_sdvo->caps.output_flags) > 1;
1473 }
1474
1475 static struct edid *
1476 intel_sdvo_get_edid(struct drm_connector *connector)
1477 {
1478         struct intel_sdvo *sdvo = intel_attached_sdvo(connector);
1479         return drm_get_edid(connector, &sdvo->ddc);
1480 }
1481
1482 /* Mac mini hack -- use the same DDC as the analog connector */
1483 static struct edid *
1484 intel_sdvo_get_analog_edid(struct drm_connector *connector)
1485 {
1486         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1487
1488         return drm_get_edid(connector,
1489                             intel_gmbus_get_adapter(dev_priv,
1490                                                     dev_priv->crt_ddc_pin));
1491 }
1492
1493 static enum drm_connector_status
1494 intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
1495 {
1496         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1497         enum drm_connector_status status;
1498         struct edid *edid;
1499
1500         edid = intel_sdvo_get_edid(connector);
1501
1502         if (edid == NULL && intel_sdvo_multifunc_encoder(intel_sdvo)) {
1503                 u8 ddc, saved_ddc = intel_sdvo->ddc_bus;
1504
1505                 /*
1506                  * Don't use the 1 as the argument of DDC bus switch to get
1507                  * the EDID. It is used for SDVO SPD ROM.
1508                  */
1509                 for (ddc = intel_sdvo->ddc_bus >> 1; ddc > 1; ddc >>= 1) {
1510                         intel_sdvo->ddc_bus = ddc;
1511                         edid = intel_sdvo_get_edid(connector);
1512                         if (edid)
1513                                 break;
1514                 }
1515                 /*
1516                  * If we found the EDID on the other bus,
1517                  * assume that is the correct DDC bus.
1518                  */
1519                 if (edid == NULL)
1520                         intel_sdvo->ddc_bus = saved_ddc;
1521         }
1522
1523         /*
1524          * When there is no edid and no monitor is connected with VGA
1525          * port, try to use the CRT ddc to read the EDID for DVI-connector.
1526          */
1527         if (edid == NULL)
1528                 edid = intel_sdvo_get_analog_edid(connector);
1529
1530         status = connector_status_unknown;
1531         if (edid != NULL) {
1532                 /* DDC bus is shared, match EDID to connector type */
1533                 if (edid->input & DRM_EDID_INPUT_DIGITAL) {
1534                         status = connector_status_connected;
1535                         if (intel_sdvo->is_hdmi) {
1536                                 intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
1537                                 intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
1538                                 intel_sdvo->rgb_quant_range_selectable =
1539                                         drm_rgb_quant_range_selectable(edid);
1540                         }
1541                 } else
1542                         status = connector_status_disconnected;
1543                 kfree(edid);
1544         }
1545
1546         if (status == connector_status_connected) {
1547                 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1548                 if (intel_sdvo_connector->force_audio != HDMI_AUDIO_AUTO)
1549                         intel_sdvo->has_hdmi_audio = (intel_sdvo_connector->force_audio == HDMI_AUDIO_ON);
1550         }
1551
1552         return status;
1553 }
1554
1555 static bool
1556 intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
1557                                   struct edid *edid)
1558 {
1559         bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
1560         bool connector_is_digital = !!IS_DIGITAL(sdvo);
1561
1562         DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n",
1563                       connector_is_digital, monitor_is_digital);
1564         return connector_is_digital == monitor_is_digital;
1565 }
1566
1567 static enum drm_connector_status
1568 intel_sdvo_detect(struct drm_connector *connector, bool force)
1569 {
1570         uint16_t response;
1571         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1572         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1573         enum drm_connector_status ret;
1574
1575         if (!intel_sdvo_get_value(intel_sdvo,
1576                                   SDVO_CMD_GET_ATTACHED_DISPLAYS,
1577                                   &response, 2))
1578                 return connector_status_unknown;
1579
1580         DRM_DEBUG_KMS("SDVO response %d %d [%x]\n",
1581                       response & 0xff, response >> 8,
1582                       intel_sdvo_connector->output_flag);
1583
1584         if (response == 0)
1585                 return connector_status_disconnected;
1586
1587         intel_sdvo->attached_output = response;
1588
1589         intel_sdvo->has_hdmi_monitor = false;
1590         intel_sdvo->has_hdmi_audio = false;
1591         intel_sdvo->rgb_quant_range_selectable = false;
1592
1593         if ((intel_sdvo_connector->output_flag & response) == 0)
1594                 ret = connector_status_disconnected;
1595         else if (IS_TMDS(intel_sdvo_connector))
1596                 ret = intel_sdvo_tmds_sink_detect(connector);
1597         else {
1598                 struct edid *edid;
1599
1600                 /* if we have an edid check it matches the connection */
1601                 edid = intel_sdvo_get_edid(connector);
1602                 if (edid == NULL)
1603                         edid = intel_sdvo_get_analog_edid(connector);
1604                 if (edid != NULL) {
1605                         if (intel_sdvo_connector_matches_edid(intel_sdvo_connector,
1606                                                               edid))
1607                                 ret = connector_status_connected;
1608                         else
1609                                 ret = connector_status_disconnected;
1610
1611                         kfree(edid);
1612                 } else
1613                         ret = connector_status_connected;
1614         }
1615
1616         /* May update encoder flag for like clock for SDVO TV, etc.*/
1617         if (ret == connector_status_connected) {
1618                 intel_sdvo->is_tv = false;
1619                 intel_sdvo->is_lvds = false;
1620                 intel_sdvo->base.needs_tv_clock = false;
1621
1622                 if (response & SDVO_TV_MASK) {
1623                         intel_sdvo->is_tv = true;
1624                         intel_sdvo->base.needs_tv_clock = true;
1625                 }
1626                 if (response & SDVO_LVDS_MASK)
1627                         intel_sdvo->is_lvds = intel_sdvo->sdvo_lvds_fixed_mode != NULL;
1628         }
1629
1630         return ret;
1631 }
1632
1633 static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
1634 {
1635         struct edid *edid;
1636
1637         /* set the bus switch and get the modes */
1638         edid = intel_sdvo_get_edid(connector);
1639
1640         /*
1641          * Mac mini hack.  On this device, the DVI-I connector shares one DDC
1642          * link between analog and digital outputs. So, if the regular SDVO
1643          * DDC fails, check to see if the analog output is disconnected, in
1644          * which case we'll look there for the digital DDC data.
1645          */
1646         if (edid == NULL)
1647                 edid = intel_sdvo_get_analog_edid(connector);
1648
1649         if (edid != NULL) {
1650                 if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector),
1651                                                       edid)) {
1652                         drm_mode_connector_update_edid_property(connector, edid);
1653                         drm_add_edid_modes(connector, edid);
1654                 }
1655
1656                 kfree(edid);
1657         }
1658 }
1659
1660 /*
1661  * Set of SDVO TV modes.
1662  * Note!  This is in reply order (see loop in get_tv_modes).
1663  * XXX: all 60Hz refresh?
1664  */
1665 static const struct drm_display_mode sdvo_tv_modes[] = {
1666         { DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 5815, 320, 321, 384,
1667                    416, 0, 200, 201, 232, 233, 0,
1668                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1669         { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 6814, 320, 321, 384,
1670                    416, 0, 240, 241, 272, 273, 0,
1671                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1672         { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 9910, 400, 401, 464,
1673                    496, 0, 300, 301, 332, 333, 0,
1674                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1675         { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 16913, 640, 641, 704,
1676                    736, 0, 350, 351, 382, 383, 0,
1677                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1678         { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 19121, 640, 641, 704,
1679                    736, 0, 400, 401, 432, 433, 0,
1680                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1681         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 22654, 640, 641, 704,
1682                    736, 0, 480, 481, 512, 513, 0,
1683                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1684         { DRM_MODE("704x480", DRM_MODE_TYPE_DRIVER, 24624, 704, 705, 768,
1685                    800, 0, 480, 481, 512, 513, 0,
1686                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1687         { DRM_MODE("704x576", DRM_MODE_TYPE_DRIVER, 29232, 704, 705, 768,
1688                    800, 0, 576, 577, 608, 609, 0,
1689                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1690         { DRM_MODE("720x350", DRM_MODE_TYPE_DRIVER, 18751, 720, 721, 784,
1691                    816, 0, 350, 351, 382, 383, 0,
1692                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1693         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 21199, 720, 721, 784,
1694                    816, 0, 400, 401, 432, 433, 0,
1695                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1696         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 25116, 720, 721, 784,
1697                    816, 0, 480, 481, 512, 513, 0,
1698                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1699         { DRM_MODE("720x540", DRM_MODE_TYPE_DRIVER, 28054, 720, 721, 784,
1700                    816, 0, 540, 541, 572, 573, 0,
1701                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1702         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 29816, 720, 721, 784,
1703                    816, 0, 576, 577, 608, 609, 0,
1704                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1705         { DRM_MODE("768x576", DRM_MODE_TYPE_DRIVER, 31570, 768, 769, 832,
1706                    864, 0, 576, 577, 608, 609, 0,
1707                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1708         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 34030, 800, 801, 864,
1709                    896, 0, 600, 601, 632, 633, 0,
1710                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1711         { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 36581, 832, 833, 896,
1712                    928, 0, 624, 625, 656, 657, 0,
1713                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1714         { DRM_MODE("920x766", DRM_MODE_TYPE_DRIVER, 48707, 920, 921, 984,
1715                    1016, 0, 766, 767, 798, 799, 0,
1716                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1717         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 53827, 1024, 1025, 1088,
1718                    1120, 0, 768, 769, 800, 801, 0,
1719                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1720         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 87265, 1280, 1281, 1344,
1721                    1376, 0, 1024, 1025, 1056, 1057, 0,
1722                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1723 };
1724
1725 static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
1726 {
1727         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1728         struct intel_sdvo_sdtv_resolution_request tv_res;
1729         uint32_t reply = 0, format_map = 0;
1730         int i;
1731
1732         /* Read the list of supported input resolutions for the selected TV
1733          * format.
1734          */
1735         format_map = 1 << intel_sdvo->tv_format_index;
1736         memcpy(&tv_res, &format_map,
1737                min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request)));
1738
1739         if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo->attached_output))
1740                 return;
1741
1742         BUILD_BUG_ON(sizeof(tv_res) != 3);
1743         if (!intel_sdvo_write_cmd(intel_sdvo,
1744                                   SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT,
1745                                   &tv_res, sizeof(tv_res)))
1746                 return;
1747         if (!intel_sdvo_read_response(intel_sdvo, &reply, 3))
1748                 return;
1749
1750         for (i = 0; i < ARRAY_SIZE(sdvo_tv_modes); i++)
1751                 if (reply & (1 << i)) {
1752                         struct drm_display_mode *nmode;
1753                         nmode = drm_mode_duplicate(connector->dev,
1754                                                    &sdvo_tv_modes[i]);
1755                         if (nmode)
1756                                 drm_mode_probed_add(connector, nmode);
1757                 }
1758 }
1759
1760 static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
1761 {
1762         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1763         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1764         struct drm_display_mode *newmode;
1765
1766         /*
1767          * Attempt to get the mode list from DDC.
1768          * Assume that the preferred modes are
1769          * arranged in priority order.
1770          */
1771         intel_ddc_get_modes(connector, intel_sdvo->i2c);
1772         if (list_empty(&connector->probed_modes) == false)
1773                 goto end;
1774
1775         /* Fetch modes from VBT */
1776         if (dev_priv->sdvo_lvds_vbt_mode != NULL) {
1777                 newmode = drm_mode_duplicate(connector->dev,
1778                                              dev_priv->sdvo_lvds_vbt_mode);
1779                 if (newmode != NULL) {
1780                         /* Guarantee the mode is preferred */
1781                         newmode->type = (DRM_MODE_TYPE_PREFERRED |
1782                                          DRM_MODE_TYPE_DRIVER);
1783                         drm_mode_probed_add(connector, newmode);
1784                 }
1785         }
1786
1787 end:
1788         list_for_each_entry(newmode, &connector->probed_modes, head) {
1789                 if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
1790                         intel_sdvo->sdvo_lvds_fixed_mode =
1791                                 drm_mode_duplicate(connector->dev, newmode);
1792
1793                         intel_sdvo->is_lvds = true;
1794                         break;
1795                 }
1796         }
1797
1798 }
1799
1800 static int intel_sdvo_get_modes(struct drm_connector *connector)
1801 {
1802         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1803
1804         if (IS_TV(intel_sdvo_connector))
1805                 intel_sdvo_get_tv_modes(connector);
1806         else if (IS_LVDS(intel_sdvo_connector))
1807                 intel_sdvo_get_lvds_modes(connector);
1808         else
1809                 intel_sdvo_get_ddc_modes(connector);
1810
1811         return !list_empty(&connector->probed_modes);
1812 }
1813
1814 static void
1815 intel_sdvo_destroy_enhance_property(struct drm_connector *connector)
1816 {
1817         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1818         struct drm_device *dev = connector->dev;
1819
1820         if (intel_sdvo_connector->left)
1821                 drm_property_destroy(dev, intel_sdvo_connector->left);
1822         if (intel_sdvo_connector->right)
1823                 drm_property_destroy(dev, intel_sdvo_connector->right);
1824         if (intel_sdvo_connector->top)
1825                 drm_property_destroy(dev, intel_sdvo_connector->top);
1826         if (intel_sdvo_connector->bottom)
1827                 drm_property_destroy(dev, intel_sdvo_connector->bottom);
1828         if (intel_sdvo_connector->hpos)
1829                 drm_property_destroy(dev, intel_sdvo_connector->hpos);
1830         if (intel_sdvo_connector->vpos)
1831                 drm_property_destroy(dev, intel_sdvo_connector->vpos);
1832         if (intel_sdvo_connector->saturation)
1833                 drm_property_destroy(dev, intel_sdvo_connector->saturation);
1834         if (intel_sdvo_connector->contrast)
1835                 drm_property_destroy(dev, intel_sdvo_connector->contrast);
1836         if (intel_sdvo_connector->hue)
1837                 drm_property_destroy(dev, intel_sdvo_connector->hue);
1838         if (intel_sdvo_connector->sharpness)
1839                 drm_property_destroy(dev, intel_sdvo_connector->sharpness);
1840         if (intel_sdvo_connector->flicker_filter)
1841                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter);
1842         if (intel_sdvo_connector->flicker_filter_2d)
1843                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_2d);
1844         if (intel_sdvo_connector->flicker_filter_adaptive)
1845                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_adaptive);
1846         if (intel_sdvo_connector->tv_luma_filter)
1847                 drm_property_destroy(dev, intel_sdvo_connector->tv_luma_filter);
1848         if (intel_sdvo_connector->tv_chroma_filter)
1849                 drm_property_destroy(dev, intel_sdvo_connector->tv_chroma_filter);
1850         if (intel_sdvo_connector->dot_crawl)
1851                 drm_property_destroy(dev, intel_sdvo_connector->dot_crawl);
1852         if (intel_sdvo_connector->brightness)
1853                 drm_property_destroy(dev, intel_sdvo_connector->brightness);
1854 }
1855
1856 static void intel_sdvo_destroy(struct drm_connector *connector)
1857 {
1858         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1859
1860         if (intel_sdvo_connector->tv_format)
1861                 drm_property_destroy(connector->dev,
1862                                      intel_sdvo_connector->tv_format);
1863
1864         intel_sdvo_destroy_enhance_property(connector);
1865         drm_sysfs_connector_remove(connector);
1866         drm_connector_cleanup(connector);
1867         kfree(intel_sdvo_connector);
1868 }
1869
1870 static bool intel_sdvo_detect_hdmi_audio(struct drm_connector *connector)
1871 {
1872         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1873         struct edid *edid;
1874         bool has_audio = false;
1875
1876         if (!intel_sdvo->is_hdmi)
1877                 return false;
1878
1879         edid = intel_sdvo_get_edid(connector);
1880         if (edid != NULL && edid->input & DRM_EDID_INPUT_DIGITAL)
1881                 has_audio = drm_detect_monitor_audio(edid);
1882         kfree(edid);
1883
1884         return has_audio;
1885 }
1886
1887 static int
1888 intel_sdvo_set_property(struct drm_connector *connector,
1889                         struct drm_property *property,
1890                         uint64_t val)
1891 {
1892         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1893         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1894         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1895         uint16_t temp_value;
1896         uint8_t cmd;
1897         int ret;
1898
1899         ret = drm_object_property_set_value(&connector->base, property, val);
1900         if (ret)
1901                 return ret;
1902
1903         if (property == dev_priv->force_audio_property) {
1904                 int i = val;
1905                 bool has_audio;
1906
1907                 if (i == intel_sdvo_connector->force_audio)
1908                         return 0;
1909
1910                 intel_sdvo_connector->force_audio = i;
1911
1912                 if (i == HDMI_AUDIO_AUTO)
1913                         has_audio = intel_sdvo_detect_hdmi_audio(connector);
1914                 else
1915                         has_audio = (i == HDMI_AUDIO_ON);
1916
1917                 if (has_audio == intel_sdvo->has_hdmi_audio)
1918                         return 0;
1919
1920                 intel_sdvo->has_hdmi_audio = has_audio;
1921                 goto done;
1922         }
1923
1924         if (property == dev_priv->broadcast_rgb_property) {
1925                 switch (val) {
1926                 case INTEL_BROADCAST_RGB_AUTO:
1927                         intel_sdvo->color_range_auto = true;
1928                         break;
1929                 case INTEL_BROADCAST_RGB_FULL:
1930                         intel_sdvo->color_range_auto = false;
1931                         intel_sdvo->color_range = 0;
1932                         break;
1933                 case INTEL_BROADCAST_RGB_LIMITED:
1934                         intel_sdvo->color_range_auto = false;
1935                         intel_sdvo->color_range = SDVO_COLOR_RANGE_16_235;
1936                         break;
1937                 default:
1938                         return -EINVAL;
1939                 }
1940                 goto done;
1941         }
1942
1943 #define CHECK_PROPERTY(name, NAME) \
1944         if (intel_sdvo_connector->name == property) { \
1945                 if (intel_sdvo_connector->cur_##name == temp_value) return 0; \
1946                 if (intel_sdvo_connector->max_##name < temp_value) return -EINVAL; \
1947                 cmd = SDVO_CMD_SET_##NAME; \
1948                 intel_sdvo_connector->cur_##name = temp_value; \
1949                 goto set_value; \
1950         }
1951
1952         if (property == intel_sdvo_connector->tv_format) {
1953                 if (val >= TV_FORMAT_NUM)
1954                         return -EINVAL;
1955
1956                 if (intel_sdvo->tv_format_index ==
1957                     intel_sdvo_connector->tv_format_supported[val])
1958                         return 0;
1959
1960                 intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[val];
1961                 goto done;
1962         } else if (IS_TV_OR_LVDS(intel_sdvo_connector)) {
1963                 temp_value = val;
1964                 if (intel_sdvo_connector->left == property) {
1965                         drm_object_property_set_value(&connector->base,
1966                                                          intel_sdvo_connector->right, val);
1967                         if (intel_sdvo_connector->left_margin == temp_value)
1968                                 return 0;
1969
1970                         intel_sdvo_connector->left_margin = temp_value;
1971                         intel_sdvo_connector->right_margin = temp_value;
1972                         temp_value = intel_sdvo_connector->max_hscan -
1973                                 intel_sdvo_connector->left_margin;
1974                         cmd = SDVO_CMD_SET_OVERSCAN_H;
1975                         goto set_value;
1976                 } else if (intel_sdvo_connector->right == property) {
1977                         drm_object_property_set_value(&connector->base,
1978                                                          intel_sdvo_connector->left, val);
1979                         if (intel_sdvo_connector->right_margin == temp_value)
1980                                 return 0;
1981
1982                         intel_sdvo_connector->left_margin = temp_value;
1983                         intel_sdvo_connector->right_margin = temp_value;
1984                         temp_value = intel_sdvo_connector->max_hscan -
1985                                 intel_sdvo_connector->left_margin;
1986                         cmd = SDVO_CMD_SET_OVERSCAN_H;
1987                         goto set_value;
1988                 } else if (intel_sdvo_connector->top == property) {
1989                         drm_object_property_set_value(&connector->base,
1990                                                          intel_sdvo_connector->bottom, val);
1991                         if (intel_sdvo_connector->top_margin == temp_value)
1992                                 return 0;
1993
1994                         intel_sdvo_connector->top_margin = temp_value;
1995                         intel_sdvo_connector->bottom_margin = temp_value;
1996                         temp_value = intel_sdvo_connector->max_vscan -
1997                                 intel_sdvo_connector->top_margin;
1998                         cmd = SDVO_CMD_SET_OVERSCAN_V;
1999                         goto set_value;
2000                 } else if (intel_sdvo_connector->bottom == property) {
2001                         drm_object_property_set_value(&connector->base,
2002                                                          intel_sdvo_connector->top, val);
2003                         if (intel_sdvo_connector->bottom_margin == temp_value)
2004                                 return 0;
2005
2006                         intel_sdvo_connector->top_margin = temp_value;
2007                         intel_sdvo_connector->bottom_margin = temp_value;
2008                         temp_value = intel_sdvo_connector->max_vscan -
2009                                 intel_sdvo_connector->top_margin;
2010                         cmd = SDVO_CMD_SET_OVERSCAN_V;
2011                         goto set_value;
2012                 }
2013                 CHECK_PROPERTY(hpos, HPOS)
2014                 CHECK_PROPERTY(vpos, VPOS)
2015                 CHECK_PROPERTY(saturation, SATURATION)
2016                 CHECK_PROPERTY(contrast, CONTRAST)
2017                 CHECK_PROPERTY(hue, HUE)
2018                 CHECK_PROPERTY(brightness, BRIGHTNESS)
2019                 CHECK_PROPERTY(sharpness, SHARPNESS)
2020                 CHECK_PROPERTY(flicker_filter, FLICKER_FILTER)
2021                 CHECK_PROPERTY(flicker_filter_2d, FLICKER_FILTER_2D)
2022                 CHECK_PROPERTY(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE)
2023                 CHECK_PROPERTY(tv_chroma_filter, TV_CHROMA_FILTER)
2024                 CHECK_PROPERTY(tv_luma_filter, TV_LUMA_FILTER)
2025                 CHECK_PROPERTY(dot_crawl, DOT_CRAWL)
2026         }
2027
2028         return -EINVAL; /* unknown property */
2029
2030 set_value:
2031         if (!intel_sdvo_set_value(intel_sdvo, cmd, &temp_value, 2))
2032                 return -EIO;
2033
2034
2035 done:
2036         if (intel_sdvo->base.base.crtc)
2037                 intel_crtc_restore_mode(intel_sdvo->base.base.crtc);
2038
2039         return 0;
2040 #undef CHECK_PROPERTY
2041 }
2042
2043 static const struct drm_encoder_helper_funcs intel_sdvo_helper_funcs = {
2044         .mode_fixup = intel_sdvo_mode_fixup,
2045         .mode_set = intel_sdvo_mode_set,
2046 };
2047
2048 static const struct drm_connector_funcs intel_sdvo_connector_funcs = {
2049         .dpms = intel_sdvo_dpms,
2050         .detect = intel_sdvo_detect,
2051         .fill_modes = drm_helper_probe_single_connector_modes,
2052         .set_property = intel_sdvo_set_property,
2053         .destroy = intel_sdvo_destroy,
2054 };
2055
2056 static const struct drm_connector_helper_funcs intel_sdvo_connector_helper_funcs = {
2057         .get_modes = intel_sdvo_get_modes,
2058         .mode_valid = intel_sdvo_mode_valid,
2059         .best_encoder = intel_best_encoder,
2060 };
2061
2062 static void intel_sdvo_enc_destroy(struct drm_encoder *encoder)
2063 {
2064         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
2065
2066         if (intel_sdvo->sdvo_lvds_fixed_mode != NULL)
2067                 drm_mode_destroy(encoder->dev,
2068                                  intel_sdvo->sdvo_lvds_fixed_mode);
2069
2070         i2c_del_adapter(&intel_sdvo->ddc);
2071         intel_encoder_destroy(encoder);
2072 }
2073
2074 static const struct drm_encoder_funcs intel_sdvo_enc_funcs = {
2075         .destroy = intel_sdvo_enc_destroy,
2076 };
2077
2078 static void
2079 intel_sdvo_guess_ddc_bus(struct intel_sdvo *sdvo)
2080 {
2081         uint16_t mask = 0;
2082         unsigned int num_bits;
2083
2084         /* Make a mask of outputs less than or equal to our own priority in the
2085          * list.
2086          */
2087         switch (sdvo->controlled_output) {
2088         case SDVO_OUTPUT_LVDS1:
2089                 mask |= SDVO_OUTPUT_LVDS1;
2090         case SDVO_OUTPUT_LVDS0:
2091                 mask |= SDVO_OUTPUT_LVDS0;
2092         case SDVO_OUTPUT_TMDS1:
2093                 mask |= SDVO_OUTPUT_TMDS1;
2094         case SDVO_OUTPUT_TMDS0:
2095                 mask |= SDVO_OUTPUT_TMDS0;
2096         case SDVO_OUTPUT_RGB1:
2097                 mask |= SDVO_OUTPUT_RGB1;
2098         case SDVO_OUTPUT_RGB0:
2099                 mask |= SDVO_OUTPUT_RGB0;
2100                 break;
2101         }
2102
2103         /* Count bits to find what number we are in the priority list. */
2104         mask &= sdvo->caps.output_flags;
2105         num_bits = hweight16(mask);
2106         /* If more than 3 outputs, default to DDC bus 3 for now. */
2107         if (num_bits > 3)
2108                 num_bits = 3;
2109
2110         /* Corresponds to SDVO_CONTROL_BUS_DDCx */
2111         sdvo->ddc_bus = 1 << num_bits;
2112 }
2113
2114 /**
2115  * Choose the appropriate DDC bus for control bus switch command for this
2116  * SDVO output based on the controlled output.
2117  *
2118  * DDC bus number assignment is in a priority order of RGB outputs, then TMDS
2119  * outputs, then LVDS outputs.
2120  */
2121 static void
2122 intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv,
2123                           struct intel_sdvo *sdvo, u32 reg)
2124 {
2125         struct sdvo_device_mapping *mapping;
2126
2127         if (sdvo->is_sdvob)
2128                 mapping = &(dev_priv->sdvo_mappings[0]);
2129         else
2130                 mapping = &(dev_priv->sdvo_mappings[1]);
2131
2132         if (mapping->initialized)
2133                 sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
2134         else
2135                 intel_sdvo_guess_ddc_bus(sdvo);
2136 }
2137
2138 static void
2139 intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
2140                           struct intel_sdvo *sdvo, u32 reg)
2141 {
2142         struct sdvo_device_mapping *mapping;
2143         u8 pin;
2144
2145         if (sdvo->is_sdvob)
2146                 mapping = &dev_priv->sdvo_mappings[0];
2147         else
2148                 mapping = &dev_priv->sdvo_mappings[1];
2149
2150         if (mapping->initialized && intel_gmbus_is_port_valid(mapping->i2c_pin))
2151                 pin = mapping->i2c_pin;
2152         else
2153                 pin = GMBUS_PORT_DPB;
2154
2155         sdvo->i2c = intel_gmbus_get_adapter(dev_priv, pin);
2156
2157         /* With gmbus we should be able to drive sdvo i2c at 2MHz, but somehow
2158          * our code totally fails once we start using gmbus. Hence fall back to
2159          * bit banging for now. */
2160         intel_gmbus_force_bit(sdvo->i2c, true);
2161 }
2162
2163 /* undo any changes intel_sdvo_select_i2c_bus() did to sdvo->i2c */
2164 static void
2165 intel_sdvo_unselect_i2c_bus(struct intel_sdvo *sdvo)
2166 {
2167         intel_gmbus_force_bit(sdvo->i2c, false);
2168 }
2169
2170 static bool
2171 intel_sdvo_is_hdmi_connector(struct intel_sdvo *intel_sdvo, int device)
2172 {
2173         return intel_sdvo_check_supp_encode(intel_sdvo);
2174 }
2175
2176 static u8
2177 intel_sdvo_get_slave_addr(struct drm_device *dev, struct intel_sdvo *sdvo)
2178 {
2179         struct drm_i915_private *dev_priv = dev->dev_private;
2180         struct sdvo_device_mapping *my_mapping, *other_mapping;
2181
2182         if (sdvo->is_sdvob) {
2183                 my_mapping = &dev_priv->sdvo_mappings[0];
2184                 other_mapping = &dev_priv->sdvo_mappings[1];
2185         } else {
2186                 my_mapping = &dev_priv->sdvo_mappings[1];
2187                 other_mapping = &dev_priv->sdvo_mappings[0];
2188         }
2189
2190         /* If the BIOS described our SDVO device, take advantage of it. */
2191         if (my_mapping->slave_addr)
2192                 return my_mapping->slave_addr;
2193
2194         /* If the BIOS only described a different SDVO device, use the
2195          * address that it isn't using.
2196          */
2197         if (other_mapping->slave_addr) {
2198                 if (other_mapping->slave_addr == 0x70)
2199                         return 0x72;
2200                 else
2201                         return 0x70;
2202         }
2203
2204         /* No SDVO device info is found for another DVO port,
2205          * so use mapping assumption we had before BIOS parsing.
2206          */
2207         if (sdvo->is_sdvob)
2208                 return 0x70;
2209         else
2210                 return 0x72;
2211 }
2212
2213 static void
2214 intel_sdvo_connector_init(struct intel_sdvo_connector *connector,
2215                           struct intel_sdvo *encoder)
2216 {
2217         drm_connector_init(encoder->base.base.dev,
2218                            &connector->base.base,
2219                            &intel_sdvo_connector_funcs,
2220                            connector->base.base.connector_type);
2221
2222         drm_connector_helper_add(&connector->base.base,
2223                                  &intel_sdvo_connector_helper_funcs);
2224
2225         connector->base.base.interlace_allowed = 1;
2226         connector->base.base.doublescan_allowed = 0;
2227         connector->base.base.display_info.subpixel_order = SubPixelHorizontalRGB;
2228         connector->base.get_hw_state = intel_sdvo_connector_get_hw_state;
2229
2230         intel_connector_attach_encoder(&connector->base, &encoder->base);
2231         drm_sysfs_connector_add(&connector->base.base);
2232 }
2233
2234 static void
2235 intel_sdvo_add_hdmi_properties(struct intel_sdvo *intel_sdvo,
2236                                struct intel_sdvo_connector *connector)
2237 {
2238         struct drm_device *dev = connector->base.base.dev;
2239
2240         intel_attach_force_audio_property(&connector->base.base);
2241         if (INTEL_INFO(dev)->gen >= 4 && IS_MOBILE(dev)) {
2242                 intel_attach_broadcast_rgb_property(&connector->base.base);
2243                 intel_sdvo->color_range_auto = true;
2244         }
2245 }
2246
2247 static bool
2248 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
2249 {
2250         struct drm_encoder *encoder = &intel_sdvo->base.base;
2251         struct drm_connector *connector;
2252         struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
2253         struct intel_connector *intel_connector;
2254         struct intel_sdvo_connector *intel_sdvo_connector;
2255
2256         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2257         if (!intel_sdvo_connector)
2258                 return false;
2259
2260         if (device == 0) {
2261                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS0;
2262                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS0;
2263         } else if (device == 1) {
2264                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS1;
2265                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS1;
2266         }
2267
2268         intel_connector = &intel_sdvo_connector->base;
2269         connector = &intel_connector->base;
2270         if (intel_sdvo_get_hotplug_support(intel_sdvo) &
2271                 intel_sdvo_connector->output_flag) {
2272                 connector->polled = DRM_CONNECTOR_POLL_HPD;
2273                 intel_sdvo->hotplug_active |= intel_sdvo_connector->output_flag;
2274                 /* Some SDVO devices have one-shot hotplug interrupts.
2275                  * Ensure that they get re-enabled when an interrupt happens.
2276                  */
2277                 intel_encoder->hot_plug = intel_sdvo_enable_hotplug;
2278                 intel_sdvo_enable_hotplug(intel_encoder);
2279         } else {
2280                 connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
2281         }
2282         encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
2283         connector->connector_type = DRM_MODE_CONNECTOR_DVID;
2284
2285         if (intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
2286                 connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
2287                 intel_sdvo->is_hdmi = true;
2288         }
2289
2290         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2291         if (intel_sdvo->is_hdmi)
2292                 intel_sdvo_add_hdmi_properties(intel_sdvo, intel_sdvo_connector);
2293
2294         return true;
2295 }
2296
2297 static bool
2298 intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
2299 {
2300         struct drm_encoder *encoder = &intel_sdvo->base.base;
2301         struct drm_connector *connector;
2302         struct intel_connector *intel_connector;
2303         struct intel_sdvo_connector *intel_sdvo_connector;
2304
2305         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2306         if (!intel_sdvo_connector)
2307                 return false;
2308
2309         intel_connector = &intel_sdvo_connector->base;
2310         connector = &intel_connector->base;
2311         encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
2312         connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
2313
2314         intel_sdvo->controlled_output |= type;
2315         intel_sdvo_connector->output_flag = type;
2316
2317         intel_sdvo->is_tv = true;
2318         intel_sdvo->base.needs_tv_clock = true;
2319
2320         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2321
2322         if (!intel_sdvo_tv_create_property(intel_sdvo, intel_sdvo_connector, type))
2323                 goto err;
2324
2325         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2326                 goto err;
2327
2328         return true;
2329
2330 err:
2331         intel_sdvo_destroy(connector);
2332         return false;
2333 }
2334
2335 static bool
2336 intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device)
2337 {
2338         struct drm_encoder *encoder = &intel_sdvo->base.base;
2339         struct drm_connector *connector;
2340         struct intel_connector *intel_connector;
2341         struct intel_sdvo_connector *intel_sdvo_connector;
2342
2343         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2344         if (!intel_sdvo_connector)
2345                 return false;
2346
2347         intel_connector = &intel_sdvo_connector->base;
2348         connector = &intel_connector->base;
2349         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
2350         encoder->encoder_type = DRM_MODE_ENCODER_DAC;
2351         connector->connector_type = DRM_MODE_CONNECTOR_VGA;
2352
2353         if (device == 0) {
2354                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB0;
2355                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB0;
2356         } else if (device == 1) {
2357                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB1;
2358                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1;
2359         }
2360
2361         intel_sdvo_connector_init(intel_sdvo_connector,
2362                                   intel_sdvo);
2363         return true;
2364 }
2365
2366 static bool
2367 intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
2368 {
2369         struct drm_encoder *encoder = &intel_sdvo->base.base;
2370         struct drm_connector *connector;
2371         struct intel_connector *intel_connector;
2372         struct intel_sdvo_connector *intel_sdvo_connector;
2373
2374         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2375         if (!intel_sdvo_connector)
2376                 return false;
2377
2378         intel_connector = &intel_sdvo_connector->base;
2379         connector = &intel_connector->base;
2380         encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
2381         connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
2382
2383         if (device == 0) {
2384                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS0;
2385                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS0;
2386         } else if (device == 1) {
2387                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS1;
2388                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1;
2389         }
2390
2391         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2392         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2393                 goto err;
2394
2395         return true;
2396
2397 err:
2398         intel_sdvo_destroy(connector);
2399         return false;
2400 }
2401
2402 static bool
2403 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
2404 {
2405         intel_sdvo->is_tv = false;
2406         intel_sdvo->base.needs_tv_clock = false;
2407         intel_sdvo->is_lvds = false;
2408
2409         /* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
2410
2411         if (flags & SDVO_OUTPUT_TMDS0)
2412                 if (!intel_sdvo_dvi_init(intel_sdvo, 0))
2413                         return false;
2414
2415         if ((flags & SDVO_TMDS_MASK) == SDVO_TMDS_MASK)
2416                 if (!intel_sdvo_dvi_init(intel_sdvo, 1))
2417                         return false;
2418
2419         /* TV has no XXX1 function block */
2420         if (flags & SDVO_OUTPUT_SVID0)
2421                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_SVID0))
2422                         return false;
2423
2424         if (flags & SDVO_OUTPUT_CVBS0)
2425                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_CVBS0))
2426                         return false;
2427
2428         if (flags & SDVO_OUTPUT_YPRPB0)
2429                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_YPRPB0))
2430                         return false;
2431
2432         if (flags & SDVO_OUTPUT_RGB0)
2433                 if (!intel_sdvo_analog_init(intel_sdvo, 0))
2434                         return false;
2435
2436         if ((flags & SDVO_RGB_MASK) == SDVO_RGB_MASK)
2437                 if (!intel_sdvo_analog_init(intel_sdvo, 1))
2438                         return false;
2439
2440         if (flags & SDVO_OUTPUT_LVDS0)
2441                 if (!intel_sdvo_lvds_init(intel_sdvo, 0))
2442                         return false;
2443
2444         if ((flags & SDVO_LVDS_MASK) == SDVO_LVDS_MASK)
2445                 if (!intel_sdvo_lvds_init(intel_sdvo, 1))
2446                         return false;
2447
2448         if ((flags & SDVO_OUTPUT_MASK) == 0) {
2449                 unsigned char bytes[2];
2450
2451                 intel_sdvo->controlled_output = 0;
2452                 memcpy(bytes, &intel_sdvo->caps.output_flags, 2);
2453                 DRM_DEBUG_KMS("%s: Unknown SDVO output type (0x%02x%02x)\n",
2454                               SDVO_NAME(intel_sdvo),
2455                               bytes[0], bytes[1]);
2456                 return false;
2457         }
2458         intel_sdvo->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
2459
2460         return true;
2461 }
2462
2463 static void intel_sdvo_output_cleanup(struct intel_sdvo *intel_sdvo)
2464 {
2465         struct drm_device *dev = intel_sdvo->base.base.dev;
2466         struct drm_connector *connector, *tmp;
2467
2468         list_for_each_entry_safe(connector, tmp,
2469                                  &dev->mode_config.connector_list, head) {
2470                 if (intel_attached_encoder(connector) == &intel_sdvo->base)
2471                         intel_sdvo_destroy(connector);
2472         }
2473 }
2474
2475 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
2476                                           struct intel_sdvo_connector *intel_sdvo_connector,
2477                                           int type)
2478 {
2479         struct drm_device *dev = intel_sdvo->base.base.dev;
2480         struct intel_sdvo_tv_format format;
2481         uint32_t format_map, i;
2482
2483         if (!intel_sdvo_set_target_output(intel_sdvo, type))
2484                 return false;
2485
2486         BUILD_BUG_ON(sizeof(format) != 6);
2487         if (!intel_sdvo_get_value(intel_sdvo,
2488                                   SDVO_CMD_GET_SUPPORTED_TV_FORMATS,
2489                                   &format, sizeof(format)))
2490                 return false;
2491
2492         memcpy(&format_map, &format, min(sizeof(format_map), sizeof(format)));
2493
2494         if (format_map == 0)
2495                 return false;
2496
2497         intel_sdvo_connector->format_supported_num = 0;
2498         for (i = 0 ; i < TV_FORMAT_NUM; i++)
2499                 if (format_map & (1 << i))
2500                         intel_sdvo_connector->tv_format_supported[intel_sdvo_connector->format_supported_num++] = i;
2501
2502
2503         intel_sdvo_connector->tv_format =
2504                         drm_property_create(dev, DRM_MODE_PROP_ENUM,
2505                                             "mode", intel_sdvo_connector->format_supported_num);
2506         if (!intel_sdvo_connector->tv_format)
2507                 return false;
2508
2509         for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
2510                 drm_property_add_enum(
2511                                 intel_sdvo_connector->tv_format, i,
2512                                 i, tv_format_names[intel_sdvo_connector->tv_format_supported[i]]);
2513
2514         intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[0];
2515         drm_object_attach_property(&intel_sdvo_connector->base.base.base,
2516                                       intel_sdvo_connector->tv_format, 0);
2517         return true;
2518
2519 }
2520
2521 #define ENHANCEMENT(name, NAME) do { \
2522         if (enhancements.name) { \
2523                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_MAX_##NAME, &data_value, 4) || \
2524                     !intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_##NAME, &response, 2)) \
2525                         return false; \
2526                 intel_sdvo_connector->max_##name = data_value[0]; \
2527                 intel_sdvo_connector->cur_##name = response; \
2528                 intel_sdvo_connector->name = \
2529                         drm_property_create_range(dev, 0, #name, 0, data_value[0]); \
2530                 if (!intel_sdvo_connector->name) return false; \
2531                 drm_object_attach_property(&connector->base, \
2532                                               intel_sdvo_connector->name, \
2533                                               intel_sdvo_connector->cur_##name); \
2534                 DRM_DEBUG_KMS(#name ": max %d, default %d, current %d\n", \
2535                               data_value[0], data_value[1], response); \
2536         } \
2537 } while (0)
2538
2539 static bool
2540 intel_sdvo_create_enhance_property_tv(struct intel_sdvo *intel_sdvo,
2541                                       struct intel_sdvo_connector *intel_sdvo_connector,
2542                                       struct intel_sdvo_enhancements_reply enhancements)
2543 {
2544         struct drm_device *dev = intel_sdvo->base.base.dev;
2545         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2546         uint16_t response, data_value[2];
2547
2548         /* when horizontal overscan is supported, Add the left/right  property */
2549         if (enhancements.overscan_h) {
2550                 if (!intel_sdvo_get_value(intel_sdvo,
2551                                           SDVO_CMD_GET_MAX_OVERSCAN_H,
2552                                           &data_value, 4))
2553                         return false;
2554
2555                 if (!intel_sdvo_get_value(intel_sdvo,
2556                                           SDVO_CMD_GET_OVERSCAN_H,
2557                                           &response, 2))
2558                         return false;
2559
2560                 intel_sdvo_connector->max_hscan = data_value[0];
2561                 intel_sdvo_connector->left_margin = data_value[0] - response;
2562                 intel_sdvo_connector->right_margin = intel_sdvo_connector->left_margin;
2563                 intel_sdvo_connector->left =
2564                         drm_property_create_range(dev, 0, "left_margin", 0, data_value[0]);
2565                 if (!intel_sdvo_connector->left)
2566                         return false;
2567
2568                 drm_object_attach_property(&connector->base,
2569                                               intel_sdvo_connector->left,
2570                                               intel_sdvo_connector->left_margin);
2571
2572                 intel_sdvo_connector->right =
2573                         drm_property_create_range(dev, 0, "right_margin", 0, data_value[0]);
2574                 if (!intel_sdvo_connector->right)
2575                         return false;
2576
2577                 drm_object_attach_property(&connector->base,
2578                                               intel_sdvo_connector->right,
2579                                               intel_sdvo_connector->right_margin);
2580                 DRM_DEBUG_KMS("h_overscan: max %d, "
2581                               "default %d, current %d\n",
2582                               data_value[0], data_value[1], response);
2583         }
2584
2585         if (enhancements.overscan_v) {
2586                 if (!intel_sdvo_get_value(intel_sdvo,
2587                                           SDVO_CMD_GET_MAX_OVERSCAN_V,
2588                                           &data_value, 4))
2589                         return false;
2590
2591                 if (!intel_sdvo_get_value(intel_sdvo,
2592                                           SDVO_CMD_GET_OVERSCAN_V,
2593                                           &response, 2))
2594                         return false;
2595
2596                 intel_sdvo_connector->max_vscan = data_value[0];
2597                 intel_sdvo_connector->top_margin = data_value[0] - response;
2598                 intel_sdvo_connector->bottom_margin = intel_sdvo_connector->top_margin;
2599                 intel_sdvo_connector->top =
2600                         drm_property_create_range(dev, 0,
2601                                             "top_margin", 0, data_value[0]);
2602                 if (!intel_sdvo_connector->top)
2603                         return false;
2604
2605                 drm_object_attach_property(&connector->base,
2606                                               intel_sdvo_connector->top,
2607                                               intel_sdvo_connector->top_margin);
2608
2609                 intel_sdvo_connector->bottom =
2610                         drm_property_create_range(dev, 0,
2611                                             "bottom_margin", 0, data_value[0]);
2612                 if (!intel_sdvo_connector->bottom)
2613                         return false;
2614
2615                 drm_object_attach_property(&connector->base,
2616                                               intel_sdvo_connector->bottom,
2617                                               intel_sdvo_connector->bottom_margin);
2618                 DRM_DEBUG_KMS("v_overscan: max %d, "
2619                               "default %d, current %d\n",
2620                               data_value[0], data_value[1], response);
2621         }
2622
2623         ENHANCEMENT(hpos, HPOS);
2624         ENHANCEMENT(vpos, VPOS);
2625         ENHANCEMENT(saturation, SATURATION);
2626         ENHANCEMENT(contrast, CONTRAST);
2627         ENHANCEMENT(hue, HUE);
2628         ENHANCEMENT(sharpness, SHARPNESS);
2629         ENHANCEMENT(brightness, BRIGHTNESS);
2630         ENHANCEMENT(flicker_filter, FLICKER_FILTER);
2631         ENHANCEMENT(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
2632         ENHANCEMENT(flicker_filter_2d, FLICKER_FILTER_2D);
2633         ENHANCEMENT(tv_chroma_filter, TV_CHROMA_FILTER);
2634         ENHANCEMENT(tv_luma_filter, TV_LUMA_FILTER);
2635
2636         if (enhancements.dot_crawl) {
2637                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_DOT_CRAWL, &response, 2))
2638                         return false;
2639
2640                 intel_sdvo_connector->max_dot_crawl = 1;
2641                 intel_sdvo_connector->cur_dot_crawl = response & 0x1;
2642                 intel_sdvo_connector->dot_crawl =
2643                         drm_property_create_range(dev, 0, "dot_crawl", 0, 1);
2644                 if (!intel_sdvo_connector->dot_crawl)
2645                         return false;
2646
2647                 drm_object_attach_property(&connector->base,
2648                                               intel_sdvo_connector->dot_crawl,
2649                                               intel_sdvo_connector->cur_dot_crawl);
2650                 DRM_DEBUG_KMS("dot crawl: current %d\n", response);
2651         }
2652
2653         return true;
2654 }
2655
2656 static bool
2657 intel_sdvo_create_enhance_property_lvds(struct intel_sdvo *intel_sdvo,
2658                                         struct intel_sdvo_connector *intel_sdvo_connector,
2659                                         struct intel_sdvo_enhancements_reply enhancements)
2660 {
2661         struct drm_device *dev = intel_sdvo->base.base.dev;
2662         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2663         uint16_t response, data_value[2];
2664
2665         ENHANCEMENT(brightness, BRIGHTNESS);
2666
2667         return true;
2668 }
2669 #undef ENHANCEMENT
2670
2671 static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
2672                                                struct intel_sdvo_connector *intel_sdvo_connector)
2673 {
2674         union {
2675                 struct intel_sdvo_enhancements_reply reply;
2676                 uint16_t response;
2677         } enhancements;
2678
2679         BUILD_BUG_ON(sizeof(enhancements) != 2);
2680
2681         enhancements.response = 0;
2682         intel_sdvo_get_value(intel_sdvo,
2683                              SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
2684                              &enhancements, sizeof(enhancements));
2685         if (enhancements.response == 0) {
2686                 DRM_DEBUG_KMS("No enhancement is supported\n");
2687                 return true;
2688         }
2689
2690         if (IS_TV(intel_sdvo_connector))
2691                 return intel_sdvo_create_enhance_property_tv(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2692         else if (IS_LVDS(intel_sdvo_connector))
2693                 return intel_sdvo_create_enhance_property_lvds(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2694         else
2695                 return true;
2696 }
2697
2698 static int intel_sdvo_ddc_proxy_xfer(struct i2c_adapter *adapter,
2699                                      struct i2c_msg *msgs,
2700                                      int num)
2701 {
2702         struct intel_sdvo *sdvo = adapter->algo_data;
2703
2704         if (!intel_sdvo_set_control_bus_switch(sdvo, sdvo->ddc_bus))
2705                 return -EIO;
2706
2707         return sdvo->i2c->algo->master_xfer(sdvo->i2c, msgs, num);
2708 }
2709
2710 static u32 intel_sdvo_ddc_proxy_func(struct i2c_adapter *adapter)
2711 {
2712         struct intel_sdvo *sdvo = adapter->algo_data;
2713         return sdvo->i2c->algo->functionality(sdvo->i2c);
2714 }
2715
2716 static const struct i2c_algorithm intel_sdvo_ddc_proxy = {
2717         .master_xfer    = intel_sdvo_ddc_proxy_xfer,
2718         .functionality  = intel_sdvo_ddc_proxy_func
2719 };
2720
2721 static bool
2722 intel_sdvo_init_ddc_proxy(struct intel_sdvo *sdvo,
2723                           struct drm_device *dev)
2724 {
2725         sdvo->ddc.owner = THIS_MODULE;
2726         sdvo->ddc.class = I2C_CLASS_DDC;
2727         snprintf(sdvo->ddc.name, I2C_NAME_SIZE, "SDVO DDC proxy");
2728         sdvo->ddc.dev.parent = &dev->pdev->dev;
2729         sdvo->ddc.algo_data = sdvo;
2730         sdvo->ddc.algo = &intel_sdvo_ddc_proxy;
2731
2732         return i2c_add_adapter(&sdvo->ddc) == 0;
2733 }
2734
2735 bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
2736 {
2737         struct drm_i915_private *dev_priv = dev->dev_private;
2738         struct intel_encoder *intel_encoder;
2739         struct intel_sdvo *intel_sdvo;
2740         u32 hotplug_mask;
2741         int i;
2742
2743         intel_sdvo = kzalloc(sizeof(struct intel_sdvo), GFP_KERNEL);
2744         if (!intel_sdvo)
2745                 return false;
2746
2747         intel_sdvo->sdvo_reg = sdvo_reg;
2748         intel_sdvo->is_sdvob = is_sdvob;
2749         intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(dev, intel_sdvo) >> 1;
2750         intel_sdvo_select_i2c_bus(dev_priv, intel_sdvo, sdvo_reg);
2751         if (!intel_sdvo_init_ddc_proxy(intel_sdvo, dev))
2752                 goto err_i2c_bus;
2753
2754         /* encoder type will be decided later */
2755         intel_encoder = &intel_sdvo->base;
2756         intel_encoder->type = INTEL_OUTPUT_SDVO;
2757         drm_encoder_init(dev, &intel_encoder->base, &intel_sdvo_enc_funcs, 0);
2758
2759         /* Read the regs to test if we can talk to the device */
2760         for (i = 0; i < 0x40; i++) {
2761                 u8 byte;
2762
2763                 if (!intel_sdvo_read_byte(intel_sdvo, i, &byte)) {
2764                         DRM_DEBUG_KMS("No SDVO device found on %s\n",
2765                                       SDVO_NAME(intel_sdvo));
2766                         goto err;
2767                 }
2768         }
2769
2770         hotplug_mask = 0;
2771         if (IS_G4X(dev)) {
2772                 hotplug_mask = intel_sdvo->is_sdvob ?
2773                         SDVOB_HOTPLUG_INT_STATUS_G4X : SDVOC_HOTPLUG_INT_STATUS_G4X;
2774         } else if (IS_GEN4(dev)) {
2775                 hotplug_mask = intel_sdvo->is_sdvob ?
2776                         SDVOB_HOTPLUG_INT_STATUS_I965 : SDVOC_HOTPLUG_INT_STATUS_I965;
2777         } else {
2778                 hotplug_mask = intel_sdvo->is_sdvob ?
2779                         SDVOB_HOTPLUG_INT_STATUS_I915 : SDVOC_HOTPLUG_INT_STATUS_I915;
2780         }
2781
2782         drm_encoder_helper_add(&intel_encoder->base, &intel_sdvo_helper_funcs);
2783
2784         intel_encoder->disable = intel_disable_sdvo;
2785         intel_encoder->enable = intel_enable_sdvo;
2786         intel_encoder->get_hw_state = intel_sdvo_get_hw_state;
2787
2788         /* In default case sdvo lvds is false */
2789         if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
2790                 goto err;
2791
2792         if (intel_sdvo_output_setup(intel_sdvo,
2793                                     intel_sdvo->caps.output_flags) != true) {
2794                 DRM_DEBUG_KMS("SDVO output failed to setup on %s\n",
2795                               SDVO_NAME(intel_sdvo));
2796                 /* Output_setup can leave behind connectors! */
2797                 goto err_output;
2798         }
2799
2800         /*
2801          * Cloning SDVO with anything is often impossible, since the SDVO
2802          * encoder can request a special input timing mode. And even if that's
2803          * not the case we have evidence that cloning a plain unscaled mode with
2804          * VGA doesn't really work. Furthermore the cloning flags are way too
2805          * simplistic anyway to express such constraints, so just give up on
2806          * cloning for SDVO encoders.
2807          */
2808         intel_sdvo->base.cloneable = false;
2809
2810         /* Only enable the hotplug irq if we need it, to work around noisy
2811          * hotplug lines.
2812          */
2813         if (intel_sdvo->hotplug_active)
2814                 dev_priv->hotplug_supported_mask |= hotplug_mask;
2815
2816         intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo, sdvo_reg);
2817
2818         /* Set the input timing to the screen. Assume always input 0. */
2819         if (!intel_sdvo_set_target_input(intel_sdvo))
2820                 goto err_output;
2821
2822         if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
2823                                                     &intel_sdvo->pixel_clock_min,
2824                                                     &intel_sdvo->pixel_clock_max))
2825                 goto err_output;
2826
2827         DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
2828                         "clock range %dMHz - %dMHz, "
2829                         "input 1: %c, input 2: %c, "
2830                         "output 1: %c, output 2: %c\n",
2831                         SDVO_NAME(intel_sdvo),
2832                         intel_sdvo->caps.vendor_id, intel_sdvo->caps.device_id,
2833                         intel_sdvo->caps.device_rev_id,
2834                         intel_sdvo->pixel_clock_min / 1000,
2835                         intel_sdvo->pixel_clock_max / 1000,
2836                         (intel_sdvo->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
2837                         (intel_sdvo->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
2838                         /* check currently supported outputs */
2839                         intel_sdvo->caps.output_flags &
2840                         (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
2841                         intel_sdvo->caps.output_flags &
2842                         (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
2843         return true;
2844
2845 err_output:
2846         intel_sdvo_output_cleanup(intel_sdvo);
2847
2848 err:
2849         drm_encoder_cleanup(&intel_encoder->base);
2850         i2c_del_adapter(&intel_sdvo->ddc);
2851 err_i2c_bus:
2852         intel_sdvo_unselect_i2c_bus(intel_sdvo);
2853         kfree(intel_sdvo);
2854
2855         return false;
2856 }