drivers/gpu/drm/i915/intel_sdvo.c

   1 /*
   2  * Copyright 2006 Dave Airlie <airlied@linux.ie>
   3  * Copyright © 2006-2007 Intel Corporation
   4  *   Jesse Barnes <jesse.barnes@intel.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23  * DEALINGS IN THE SOFTWARE.
  24  *
  25  * Authors:
  26  *      Eric Anholt <eric@anholt.net>
  27  */
  28 #include <linux/i2c.h>
  29 #include <linux/slab.h>
  30 #include <linux/delay.h>
  31 #include <linux/export.h>
  32 #include "drmP.h"
  33 #include "drm.h"
  34 #include "drm_crtc.h"
  35 #include "drm_edid.h"
  36 #include "intel_drv.h"
  37 #include "i915_drm.h"
  38 #include "i915_drv.h"
  39 #include "intel_sdvo_regs.h"
  40
  41 #define SDVO_TMDS_MASK (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)
  42 #define SDVO_RGB_MASK  (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1)
  43 #define SDVO_LVDS_MASK (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1)
  44 #define SDVO_TV_MASK   (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_SVID0)
  45
  46 #define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK |\
  47                         SDVO_TV_MASK)
  48
  49 #define IS_TV(c)        (c->output_flag & SDVO_TV_MASK)
  50 #define IS_TMDS(c)      (c->output_flag & SDVO_TMDS_MASK)
  51 #define IS_LVDS(c)      (c->output_flag & SDVO_LVDS_MASK)
  52 #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
  53 #define IS_DIGITAL(c) (c->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK))
  54
  55
  56 static const char *tv_format_names[] = {
  57         "NTSC_M"   , "NTSC_J"  , "NTSC_443",
  58         "PAL_B"    , "PAL_D"   , "PAL_G"   ,
  59         "PAL_H"    , "PAL_I"   , "PAL_M"   ,
  60         "PAL_N"    , "PAL_NC"  , "PAL_60"  ,
  61         "SECAM_B"  , "SECAM_D" , "SECAM_G" ,
  62         "SECAM_K"  , "SECAM_K1", "SECAM_L" ,
  63         "SECAM_60"
  64 };
  65
  66 #define TV_FORMAT_NUM  (sizeof(tv_format_names) / sizeof(*tv_format_names))
  67
  68 struct intel_sdvo {
  69         struct intel_encoder base;
  70
  71         struct i2c_adapter *i2c;
  72         u8 slave_addr;
  73
  74         struct i2c_adapter ddc;
  75
  76         /* Register for the SDVO device: SDVOB or SDVOC */
  77         int sdvo_reg;
  78
  79         /* Active outputs controlled by this SDVO output */
  80         uint16_t controlled_output;
  81
  82         /*
  83          * Capabilities of the SDVO device returned by
  84          * i830_sdvo_get_capabilities()
  85          */
  86         struct intel_sdvo_caps caps;
  87
  88         /* Pixel clock limitations reported by the SDVO device, in kHz */
  89         int pixel_clock_min, pixel_clock_max;
  90
  91         /*
  92         * For multiple function SDVO device,
  93         * this is for current attached outputs.
  94         */
  95         uint16_t attached_output;
  96
  97         /*
  98          * Hotplug activation bits for this device
  99          */
 100         uint8_t hotplug_active[2];
 101
 102         /**
 103          * This is used to select the color range of RBG outputs in HDMI mode.
 104          * It is only valid when using TMDS encoding and 8 bit per color mode.
 105          */
 106         uint32_t color_range;
 107
 108         /**
 109          * This is set if we're going to treat the device as TV-out.
 110          *
 111          * While we have these nice friendly flags for output types that ought
 112          * to decide this for us, the S-Video output on our HDMI+S-Video card
 113          * shows up as RGB1 (VGA).
 114          */
 115         bool is_tv;
 116
 117         /* This is for current tv format name */
 118         int tv_format_index;
 119
 120         /**
 121          * This is set if we treat the device as HDMI, instead of DVI.
 122          */
 123         bool is_hdmi;
 124         bool has_hdmi_monitor;
 125         bool has_hdmi_audio;
 126
 127         /**
 128          * This is set if we detect output of sdvo device as LVDS and
 129          * have a valid fixed mode to use with the panel.
 130          */
 131         bool is_lvds;
 132
 133         /**
 134          * This is sdvo fixed pannel mode pointer
 135          */
 136         struct drm_display_mode *sdvo_lvds_fixed_mode;
 137
 138         /* DDC bus used by this SDVO encoder */
 139         uint8_t ddc_bus;
 140
 141         /* Input timings for adjusted_mode */
 142         struct intel_sdvo_dtd input_dtd;
 143 };
 144
 145 struct intel_sdvo_connector {
 146         struct intel_connector base;
 147
 148         /* Mark the type of connector */
 149         uint16_t output_flag;
 150
 151         enum hdmi_force_audio force_audio;
 152
 153         /* This contains all current supported TV format */
 154         u8 tv_format_supported[TV_FORMAT_NUM];
 155         int   format_supported_num;
 156         struct drm_property *tv_format;
 157
 158         /* add the property for the SDVO-TV */
 159         struct drm_property *left;
 160         struct drm_property *right;
 161         struct drm_property *top;
 162         struct drm_property *bottom;
 163         struct drm_property *hpos;
 164         struct drm_property *vpos;
 165         struct drm_property *contrast;
 166         struct drm_property *saturation;
 167         struct drm_property *hue;
 168         struct drm_property *sharpness;
 169         struct drm_property *flicker_filter;
 170         struct drm_property *flicker_filter_adaptive;
 171         struct drm_property *flicker_filter_2d;
 172         struct drm_property *tv_chroma_filter;
 173         struct drm_property *tv_luma_filter;
 174         struct drm_property *dot_crawl;
 175
 176         /* add the property for the SDVO-TV/LVDS */
 177         struct drm_property *brightness;
 178
 179         /* Add variable to record current setting for the above property */
 180         u32     left_margin, right_margin, top_margin, bottom_margin;
 181
 182         /* this is to get the range of margin.*/
 183         u32     max_hscan,  max_vscan;
 184         u32     max_hpos, cur_hpos;
 185         u32     max_vpos, cur_vpos;
 186         u32     cur_brightness, max_brightness;
 187         u32     cur_contrast,   max_contrast;
 188         u32     cur_saturation, max_saturation;
 189         u32     cur_hue,        max_hue;
 190         u32     cur_sharpness,  max_sharpness;
 191         u32     cur_flicker_filter,             max_flicker_filter;
 192         u32     cur_flicker_filter_adaptive,    max_flicker_filter_adaptive;
 193         u32     cur_flicker_filter_2d,          max_flicker_filter_2d;
 194         u32     cur_tv_chroma_filter,   max_tv_chroma_filter;
 195         u32     cur_tv_luma_filter,     max_tv_luma_filter;
 196         u32     cur_dot_crawl,  max_dot_crawl;
 197 };
 198
 199 static struct intel_sdvo *to_intel_sdvo(struct drm_encoder *encoder)
 200 {
 201         return container_of(encoder, struct intel_sdvo, base.base);
 202 }
 203
 204 static struct intel_sdvo *intel_attached_sdvo(struct drm_connector *connector)
 205 {
 206         return container_of(intel_attached_encoder(connector),
 207                             struct intel_sdvo, base);
 208 }
 209
 210 static struct intel_sdvo_connector *to_intel_sdvo_connector(struct drm_connector *connector)
 211 {
 212         return container_of(to_intel_connector(connector), struct intel_sdvo_connector, base);
 213 }
 214
 215 static bool
 216 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags);
 217 static bool
 218 intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
 219                               struct intel_sdvo_connector *intel_sdvo_connector,
 220                               int type);
 221 static bool
 222 intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
 223                                    struct intel_sdvo_connector *intel_sdvo_connector);
 224
 225 /**
 226  * Writes the SDVOB or SDVOC with the given value, but always writes both
 227  * SDVOB and SDVOC to work around apparent hardware issues (according to
 228  * comments in the BIOS).
 229  */
 230 static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val)
 231 {
 232         struct drm_device *dev = intel_sdvo->base.base.dev;
 233         struct drm_i915_private *dev_priv = dev->dev_private;
 234         u32 bval = val, cval = val;
 235         int i;
 236
 237         if (intel_sdvo->sdvo_reg == PCH_SDVOB) {
 238                 I915_WRITE(intel_sdvo->sdvo_reg, val);
 239                 I915_READ(intel_sdvo->sdvo_reg);
 240                 return;
 241         }
 242
 243         if (intel_sdvo->sdvo_reg == SDVOB) {
 244                 cval = I915_READ(SDVOC);
 245         } else {
 246                 bval = I915_READ(SDVOB);
 247         }
 248         /*
 249          * Write the registers twice for luck. Sometimes,
 250          * writing them only once doesn't appear to 'stick'.
 251          * The BIOS does this too. Yay, magic
 252          */
 253         for (i = 0; i < 2; i++)
 254         {
 255                 I915_WRITE(SDVOB, bval);
 256                 I915_READ(SDVOB);
 257                 I915_WRITE(SDVOC, cval);
 258                 I915_READ(SDVOC);
 259         }
 260 }
 261
 262 static bool intel_sdvo_read_byte(struct intel_sdvo *intel_sdvo, u8 addr, u8 *ch)
 263 {
 264         struct i2c_msg msgs[] = {
 265                 {
 266                         .addr = intel_sdvo->slave_addr,
 267                         .flags = 0,
 268                         .len = 1,
 269                         .buf = &addr,
 270                 },
 271                 {
 272                         .addr = intel_sdvo->slave_addr,
 273                         .flags = I2C_M_RD,
 274                         .len = 1,
 275                         .buf = ch,
 276                 }
 277         };
 278         int ret;
 279
 280         if ((ret = i2c_transfer(intel_sdvo->i2c, msgs, 2)) == 2)
 281                 return true;
 282
 283         DRM_DEBUG_KMS("i2c transfer returned %d\n", ret);
 284         return false;
 285 }
 286
 287 #define SDVO_CMD_NAME_ENTRY(cmd) {cmd, #cmd}
 288 /** Mapping of command numbers to names, for debug output */
 289 static const struct _sdvo_cmd_name {
 290         u8 cmd;
 291         const char *name;
 292 } sdvo_cmd_names[] = {
 293         SDVO_CMD_NAME_ENTRY(SDVO_CMD_RESET),
 294         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DEVICE_CAPS),
 295         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FIRMWARE_REV),
 296         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TRAINED_INPUTS),
 297         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_OUTPUTS),
 298         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_OUTPUTS),
 299         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_IN_OUT_MAP),
 300         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_IN_OUT_MAP),
 301         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ATTACHED_DISPLAYS),
 302         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HOT_PLUG_SUPPORT),
 303         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_HOT_PLUG),
 304         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_HOT_PLUG),
 305         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INTERRUPT_EVENT_SOURCE),
 306         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_INPUT),
 307         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_OUTPUT),
 308         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART1),
 309         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART2),
 310         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 311         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART2),
 312         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 313         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART1),
 314         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART2),
 315         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART1),
 316         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART2),
 317         SDVO_CMD_NAME_ENTRY(SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING),
 318         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1),
 319         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2),
 320         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE),
 321         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_PIXEL_CLOCK_RANGE),
 322         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_CLOCK_RATE_MULTS),
 323         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CLOCK_RATE_MULT),
 324         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CLOCK_RATE_MULT),
 325         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_TV_FORMATS),
 326         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_FORMAT),
 327         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_FORMAT),
 328         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_POWER_STATES),
 329         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_POWER_STATE),
 330         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODER_POWER_STATE),
 331         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DISPLAY_POWER_STATE),
 332         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTROL_BUS_SWITCH),
 333         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT),
 334         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SCALED_HDTV_RESOLUTION_SUPPORT),
 335         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS),
 336
 337         /* Add the op code for SDVO enhancements */
 338         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HPOS),
 339         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HPOS),
 340         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HPOS),
 341         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_VPOS),
 342         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_VPOS),
 343         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_VPOS),
 344         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SATURATION),
 345         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SATURATION),
 346         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SATURATION),
 347         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HUE),
 348         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HUE),
 349         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HUE),
 350         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_CONTRAST),
 351         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CONTRAST),
 352         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTRAST),
 353         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_BRIGHTNESS),
 354         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_BRIGHTNESS),
 355         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_BRIGHTNESS),
 356         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_H),
 357         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_H),
 358         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_H),
 359         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_V),
 360         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_V),
 361         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_V),
 362         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER),
 363         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER),
 364         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER),
 365         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_ADAPTIVE),
 366         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_ADAPTIVE),
 367         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_ADAPTIVE),
 368         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_2D),
 369         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_2D),
 370         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_2D),
 371         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SHARPNESS),
 372         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SHARPNESS),
 373         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SHARPNESS),
 374         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DOT_CRAWL),
 375         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DOT_CRAWL),
 376         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_CHROMA_FILTER),
 377         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_CHROMA_FILTER),
 378         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_CHROMA_FILTER),
 379         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_LUMA_FILTER),
 380         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_LUMA_FILTER),
 381         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_LUMA_FILTER),
 382
 383         /* HDMI op code */
 384         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPP_ENCODE),
 385         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ENCODE),
 386         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODE),
 387         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_PIXEL_REPLI),
 388         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PIXEL_REPLI),
 389         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY_CAP),
 390         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_COLORIMETRY),
 391         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY),
 392         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_ENCRYPT_PREFER),
 393         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_AUDIO_STAT),
 394         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_STAT),
 395         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INDEX),
 396         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_INDEX),
 397         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INFO),
 398         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_AV_SPLIT),
 399         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_AV_SPLIT),
 400         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_TXRATE),
 401         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_TXRATE),
 402         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_DATA),
 403         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_DATA),
 404 };
 405
 406 #define IS_SDVOB(reg)   (reg == SDVOB || reg == PCH_SDVOB)
 407 #define SDVO_NAME(svdo) (IS_SDVOB((svdo)->sdvo_reg) ? "SDVOB" : "SDVOC")
 408
 409 static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd,
 410                                    const void *args, int args_len)
 411 {
 412         int i;
 413
 414         DRM_DEBUG_KMS("%s: W: %02X ",
 415                                 SDVO_NAME(intel_sdvo), cmd);
 416         for (i = 0; i < args_len; i++)
 417                 DRM_LOG_KMS("%02X ", ((u8 *)args)[i]);
 418         for (; i < 8; i++)
 419                 DRM_LOG_KMS("   ");
 420         for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) {
 421                 if (cmd == sdvo_cmd_names[i].cmd) {
 422                         DRM_LOG_KMS("(%s)", sdvo_cmd_names[i].name);
 423                         break;
 424                 }
 425         }
 426         if (i == ARRAY_SIZE(sdvo_cmd_names))
 427                 DRM_LOG_KMS("(%02X)", cmd);
 428         DRM_LOG_KMS("\n");
 429 }
 430
 431 static const char *cmd_status_names[] = {
 432         "Power on",
 433         "Success",
 434         "Not supported",
 435         "Invalid arg",
 436         "Pending",
 437         "Target not specified",
 438         "Scaling not supported"
 439 };
 440
 441 static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
 442                                  const void *args, int args_len)
 443 {
 444         u8 buf[args_len*2 + 2], status;
 445         struct i2c_msg msgs[args_len + 3];
 446         int i, ret;
 447
 448         intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
 449
 450         for (i = 0; i < args_len; i++) {
 451                 msgs[i].addr = intel_sdvo->slave_addr;
 452                 msgs[i].flags = 0;
 453                 msgs[i].len = 2;
 454                 msgs[i].buf = buf + 2 *i;
 455                 buf[2*i + 0] = SDVO_I2C_ARG_0 - i;
 456                 buf[2*i + 1] = ((u8*)args)[i];
 457         }
 458         msgs[i].addr = intel_sdvo->slave_addr;
 459         msgs[i].flags = 0;
 460         msgs[i].len = 2;
 461         msgs[i].buf = buf + 2*i;
 462         buf[2*i + 0] = SDVO_I2C_OPCODE;
 463         buf[2*i + 1] = cmd;
 464
 465         /* the following two are to read the response */
 466         status = SDVO_I2C_CMD_STATUS;
 467         msgs[i+1].addr = intel_sdvo->slave_addr;
 468         msgs[i+1].flags = 0;
 469         msgs[i+1].len = 1;
 470         msgs[i+1].buf = &status;
 471
 472         msgs[i+2].addr = intel_sdvo->slave_addr;
 473         msgs[i+2].flags = I2C_M_RD;
 474         msgs[i+2].len = 1;
 475         msgs[i+2].buf = &status;
 476
 477         ret = i2c_transfer(intel_sdvo->i2c, msgs, i+3);
 478         if (ret < 0) {
 479                 DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
 480                 return false;
 481         }
 482         if (ret != i+3) {
 483                 /* failure in I2C transfer */
 484                 DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3);
 485                 return false;
 486         }
 487
 488         return true;
 489 }
 490
 491 static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
 492                                      void *response, int response_len)
 493 {
 494         u8 retry = 5;
 495         u8 status;
 496         int i;
 497
 498         DRM_DEBUG_KMS("%s: R: ", SDVO_NAME(intel_sdvo));
 499
 500         /*
 501          * The documentation states that all commands will be
 502          * processed within 15µs, and that we need only poll
 503          * the status byte a maximum of 3 times in order for the
 504          * command to be complete.
 505          *
 506          * Check 5 times in case the hardware failed to read the docs.
 507          */
 508         if (!intel_sdvo_read_byte(intel_sdvo,
 509                                   SDVO_I2C_CMD_STATUS,
 510                                   &status))
 511                 goto log_fail;
 512
 513         while (status == SDVO_CMD_STATUS_PENDING && retry--) {
 514                 udelay(15);
 515                 if (!intel_sdvo_read_byte(intel_sdvo,
 516                                           SDVO_I2C_CMD_STATUS,
 517                                           &status))
 518                         goto log_fail;
 519         }
 520
 521         if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
 522                 DRM_LOG_KMS("(%s)", cmd_status_names[status]);
 523         else
 524                 DRM_LOG_KMS("(??? %d)", status);
 525
 526         if (status != SDVO_CMD_STATUS_SUCCESS)
 527                 goto log_fail;
 528
 529         /* Read the command response */
 530         for (i = 0; i < response_len; i++) {
 531                 if (!intel_sdvo_read_byte(intel_sdvo,
 532                                           SDVO_I2C_RETURN_0 + i,
 533                                           &((u8 *)response)[i]))
 534                         goto log_fail;
 535                 DRM_LOG_KMS(" %02X", ((u8 *)response)[i]);
 536         }
 537         DRM_LOG_KMS("\n");
 538         return true;
 539
 540 log_fail:
 541         DRM_LOG_KMS("... failed\n");
 542         return false;
 543 }
 544
 545 static int intel_sdvo_get_pixel_multiplier(struct drm_display_mode *mode)
 546 {
 547         if (mode->clock >= 100000)
 548                 return 1;
 549         else if (mode->clock >= 50000)
 550                 return 2;
 551         else
 552                 return 4;
 553 }
 554
 555 static bool intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo,
 556                                               u8 ddc_bus)
 557 {
 558         /* This must be the immediately preceding write before the i2c xfer */
 559         return intel_sdvo_write_cmd(intel_sdvo,
 560                                     SDVO_CMD_SET_CONTROL_BUS_SWITCH,
 561                                     &ddc_bus, 1);
 562 }
 563
 564 static bool intel_sdvo_set_value(struct intel_sdvo *intel_sdvo, u8 cmd, const void *data, int len)
 565 {
 566         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, data, len))
 567                 return false;
 568
 569         return intel_sdvo_read_response(intel_sdvo, NULL, 0);
 570 }
 571
 572 static bool
 573 intel_sdvo_get_value(struct intel_sdvo *intel_sdvo, u8 cmd, void *value, int len)
 574 {
 575         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, NULL, 0))
 576                 return false;
 577
 578         return intel_sdvo_read_response(intel_sdvo, value, len);
 579 }
 580
 581 static bool intel_sdvo_set_target_input(struct intel_sdvo *intel_sdvo)
 582 {
 583         struct intel_sdvo_set_target_input_args targets = {0};
 584         return intel_sdvo_set_value(intel_sdvo,
 585                                     SDVO_CMD_SET_TARGET_INPUT,
 586                                     &targets, sizeof(targets));
 587 }
 588
 589 /**
 590  * Return whether each input is trained.
 591  *
 592  * This function is making an assumption about the layout of the response,
 593  * which should be checked against the docs.
 594  */
 595 static bool intel_sdvo_get_trained_inputs(struct intel_sdvo *intel_sdvo, bool *input_1, bool *input_2)
 596 {
 597         struct intel_sdvo_get_trained_inputs_response response;
 598
 599         BUILD_BUG_ON(sizeof(response) != 1);
 600         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_TRAINED_INPUTS,
 601                                   &response, sizeof(response)))
 602                 return false;
 603
 604         *input_1 = response.input0_trained;
 605         *input_2 = response.input1_trained;
 606         return true;
 607 }
 608
 609 static bool intel_sdvo_set_active_outputs(struct intel_sdvo *intel_sdvo,
 610                                           u16 outputs)
 611 {
 612         return intel_sdvo_set_value(intel_sdvo,
 613                                     SDVO_CMD_SET_ACTIVE_OUTPUTS,
 614                                     &outputs, sizeof(outputs));
 615 }
 616
 617 static bool intel_sdvo_set_encoder_power_state(struct intel_sdvo *intel_sdvo,
 618                                                int mode)
 619 {
 620         u8 state = SDVO_ENCODER_STATE_ON;
 621
 622         switch (mode) {
 623         case DRM_MODE_DPMS_ON:
 624                 state = SDVO_ENCODER_STATE_ON;
 625                 break;
 626         case DRM_MODE_DPMS_STANDBY:
 627                 state = SDVO_ENCODER_STATE_STANDBY;
 628                 break;
 629         case DRM_MODE_DPMS_SUSPEND:
 630                 state = SDVO_ENCODER_STATE_SUSPEND;
 631                 break;
 632         case DRM_MODE_DPMS_OFF:
 633                 state = SDVO_ENCODER_STATE_OFF;
 634                 break;
 635         }
 636
 637         return intel_sdvo_set_value(intel_sdvo,
 638                                     SDVO_CMD_SET_ENCODER_POWER_STATE, &state, sizeof(state));
 639 }
 640
 641 static bool intel_sdvo_get_input_pixel_clock_range(struct intel_sdvo *intel_sdvo,
 642                                                    int *clock_min,
 643                                                    int *clock_max)
 644 {
 645         struct intel_sdvo_pixel_clock_range clocks;
 646
 647         BUILD_BUG_ON(sizeof(clocks) != 4);
 648         if (!intel_sdvo_get_value(intel_sdvo,
 649                                   SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
 650                                   &clocks, sizeof(clocks)))
 651                 return false;
 652
 653         /* Convert the values from units of 10 kHz to kHz. */
 654         *clock_min = clocks.min * 10;
 655         *clock_max = clocks.max * 10;
 656         return true;
 657 }
 658
 659 static bool intel_sdvo_set_target_output(struct intel_sdvo *intel_sdvo,
 660                                          u16 outputs)
 661 {
 662         return intel_sdvo_set_value(intel_sdvo,
 663                                     SDVO_CMD_SET_TARGET_OUTPUT,
 664                                     &outputs, sizeof(outputs));
 665 }
 666
 667 static bool intel_sdvo_set_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 668                                   struct intel_sdvo_dtd *dtd)
 669 {
 670         return intel_sdvo_set_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 671                 intel_sdvo_set_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 672 }
 673
 674 static bool intel_sdvo_set_input_timing(struct intel_sdvo *intel_sdvo,
 675                                          struct intel_sdvo_dtd *dtd)
 676 {
 677         return intel_sdvo_set_timing(intel_sdvo,
 678                                      SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd);
 679 }
 680
 681 static bool intel_sdvo_set_output_timing(struct intel_sdvo *intel_sdvo,
 682                                          struct intel_sdvo_dtd *dtd)
 683 {
 684         return intel_sdvo_set_timing(intel_sdvo,
 685                                      SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd);
 686 }
 687
 688 static bool
 689 intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 690                                          uint16_t clock,
 691                                          uint16_t width,
 692                                          uint16_t height)
 693 {
 694         struct intel_sdvo_preferred_input_timing_args args;
 695
 696         memset(&args, 0, sizeof(args));
 697         args.clock = clock;
 698         args.width = width;
 699         args.height = height;
 700         args.interlace = 0;
 701
 702         if (intel_sdvo->is_lvds &&
 703            (intel_sdvo->sdvo_lvds_fixed_mode->hdisplay != width ||
 704             intel_sdvo->sdvo_lvds_fixed_mode->vdisplay != height))
 705                 args.scaled = 1;
 706
 707         return intel_sdvo_set_value(intel_sdvo,
 708                                     SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
 709                                     &args, sizeof(args));
 710 }
 711
 712 static bool intel_sdvo_get_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 713                                                   struct intel_sdvo_dtd *dtd)
 714 {
 715         BUILD_BUG_ON(sizeof(dtd->part1) != 8);
 716         BUILD_BUG_ON(sizeof(dtd->part2) != 8);
 717         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
 718                                     &dtd->part1, sizeof(dtd->part1)) &&
 719                 intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
 720                                      &dtd->part2, sizeof(dtd->part2));
 721 }
 722
 723 static bool intel_sdvo_set_clock_rate_mult(struct intel_sdvo *intel_sdvo, u8 val)
 724 {
 725         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
 726 }
 727
 728 static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
 729                                          const struct drm_display_mode *mode)
 730 {
 731         uint16_t width, height;
 732         uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len;
 733         uint16_t h_sync_offset, v_sync_offset;
 734
 735         width = mode->crtc_hdisplay;
 736         height = mode->crtc_vdisplay;
 737
 738         /* do some mode translations */
 739         h_blank_len = mode->crtc_hblank_end - mode->crtc_hblank_start;
 740         h_sync_len = mode->crtc_hsync_end - mode->crtc_hsync_start;
 741
 742         v_blank_len = mode->crtc_vblank_end - mode->crtc_vblank_start;
 743         v_sync_len = mode->crtc_vsync_end - mode->crtc_vsync_start;
 744
 745         h_sync_offset = mode->crtc_hsync_start - mode->crtc_hblank_start;
 746         v_sync_offset = mode->crtc_vsync_start - mode->crtc_vblank_start;
 747
 748         dtd->part1.clock = mode->clock / 10;
 749         dtd->part1.h_active = width & 0xff;
 750         dtd->part1.h_blank = h_blank_len & 0xff;
 751         dtd->part1.h_high = (((width >> 8) & 0xf) << 4) |
 752                 ((h_blank_len >> 8) & 0xf);
 753         dtd->part1.v_active = height & 0xff;
 754         dtd->part1.v_blank = v_blank_len & 0xff;
 755         dtd->part1.v_high = (((height >> 8) & 0xf) << 4) |
 756                 ((v_blank_len >> 8) & 0xf);
 757
 758         dtd->part2.h_sync_off = h_sync_offset & 0xff;
 759         dtd->part2.h_sync_width = h_sync_len & 0xff;
 760         dtd->part2.v_sync_off_width = (v_sync_offset & 0xf) << 4 |
 761                 (v_sync_len & 0xf);
 762         dtd->part2.sync_off_width_high = ((h_sync_offset & 0x300) >> 2) |
 763                 ((h_sync_len & 0x300) >> 4) | ((v_sync_offset & 0x30) >> 2) |
 764                 ((v_sync_len & 0x30) >> 4);
 765
 766         dtd->part2.dtd_flags = 0x18;
 767         if (mode->flags & DRM_MODE_FLAG_PHSYNC)
 768                 dtd->part2.dtd_flags |= 0x2;
 769         if (mode->flags & DRM_MODE_FLAG_PVSYNC)
 770                 dtd->part2.dtd_flags |= 0x4;
 771
 772         dtd->part2.sdvo_flags = 0;
 773         dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
 774         dtd->part2.reserved = 0;
 775 }
 776
 777 static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode,
 778                                          const struct intel_sdvo_dtd *dtd)
 779 {
 780         mode->hdisplay = dtd->part1.h_active;
 781         mode->hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
 782         mode->hsync_start = mode->hdisplay + dtd->part2.h_sync_off;
 783         mode->hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
 784         mode->hsync_end = mode->hsync_start + dtd->part2.h_sync_width;
 785         mode->hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
 786         mode->htotal = mode->hdisplay + dtd->part1.h_blank;
 787         mode->htotal += (dtd->part1.h_high & 0xf) << 8;
 788
 789         mode->vdisplay = dtd->part1.v_active;
 790         mode->vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
 791         mode->vsync_start = mode->vdisplay;
 792         mode->vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
 793         mode->vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
 794         mode->vsync_start += dtd->part2.v_sync_off_high & 0xc0;
 795         mode->vsync_end = mode->vsync_start +
 796                 (dtd->part2.v_sync_off_width & 0xf);
 797         mode->vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
 798         mode->vtotal = mode->vdisplay + dtd->part1.v_blank;
 799         mode->vtotal += (dtd->part1.v_high & 0xf) << 8;
 800
 801         mode->clock = dtd->part1.clock * 10;
 802
 803         mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
 804         if (dtd->part2.dtd_flags & 0x2)
 805                 mode->flags |= DRM_MODE_FLAG_PHSYNC;
 806         if (dtd->part2.dtd_flags & 0x4)
 807                 mode->flags |= DRM_MODE_FLAG_PVSYNC;
 808 }
 809
 810 static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo)
 811 {
 812         struct intel_sdvo_encode encode;
 813
 814         BUILD_BUG_ON(sizeof(encode) != 2);
 815         return intel_sdvo_get_value(intel_sdvo,
 816                                   SDVO_CMD_GET_SUPP_ENCODE,
 817                                   &encode, sizeof(encode));
 818 }
 819
 820 static bool intel_sdvo_set_encode(struct intel_sdvo *intel_sdvo,
 821                                   uint8_t mode)
 822 {
 823         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_ENCODE, &mode, 1);
 824 }
 825
 826 static bool intel_sdvo_set_colorimetry(struct intel_sdvo *intel_sdvo,
 827                                        uint8_t mode)
 828 {
 829         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
 830 }
 831
 832 #if 0
 833 static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
 834 {
 835         int i, j;
 836         uint8_t set_buf_index[2];
 837         uint8_t av_split;
 838         uint8_t buf_size;
 839         uint8_t buf[48];
 840         uint8_t *pos;
 841
 842         intel_sdvo_get_value(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, &av_split, 1);
 843
 844         for (i = 0; i <= av_split; i++) {
 845                 set_buf_index[0] = i; set_buf_index[1] = 0;
 846                 intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX,
 847                                      set_buf_index, 2);
 848                 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
 849                 intel_sdvo_read_response(encoder, &buf_size, 1);
 850
 851                 pos = buf;
 852                 for (j = 0; j <= buf_size; j += 8) {
 853                         intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA,
 854                                              NULL, 0);
 855                         intel_sdvo_read_response(encoder, pos, 8);
 856                         pos += 8;
 857                 }
 858         }
 859 }
 860 #endif
 861
 862 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
 863 {
 864         struct dip_infoframe avi_if = {
 865                 .type = DIP_TYPE_AVI,
 866                 .ver = DIP_VERSION_AVI,
 867                 .len = DIP_LEN_AVI,
 868         };
 869         uint8_t tx_rate = SDVO_HBUF_TX_VSYNC;
 870         uint8_t set_buf_index[2] = { 1, 0 };
 871         uint64_t *data = (uint64_t *)&avi_if;
 872         unsigned i;
 873
 874         intel_dip_infoframe_csum(&avi_if);
 875
 876         if (!intel_sdvo_set_value(intel_sdvo,
 877                                   SDVO_CMD_SET_HBUF_INDEX,
 878                                   set_buf_index, 2))
 879                 return false;
 880
 881         for (i = 0; i < sizeof(avi_if); i += 8) {
 882                 if (!intel_sdvo_set_value(intel_sdvo,
 883                                           SDVO_CMD_SET_HBUF_DATA,
 884                                           data, 8))
 885                         return false;
 886                 data++;
 887         }
 888
 889         return intel_sdvo_set_value(intel_sdvo,
 890                                     SDVO_CMD_SET_HBUF_TXRATE,
 891                                     &tx_rate, 1);
 892 }
 893
 894 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
 895 {
 896         struct intel_sdvo_tv_format format;
 897         uint32_t format_map;
 898
 899         format_map = 1 << intel_sdvo->tv_format_index;
 900         memset(&format, 0, sizeof(format));
 901         memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map)));
 902
 903         BUILD_BUG_ON(sizeof(format) != 6);
 904         return intel_sdvo_set_value(intel_sdvo,
 905                                     SDVO_CMD_SET_TV_FORMAT,
 906                                     &format, sizeof(format));
 907 }
 908
 909 static bool
 910 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
 911                                         struct drm_display_mode *mode)
 912 {
 913         struct intel_sdvo_dtd output_dtd;
 914
 915         if (!intel_sdvo_set_target_output(intel_sdvo,
 916                                           intel_sdvo->attached_output))
 917                 return false;
 918
 919         intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
 920         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
 921                 return false;
 922
 923         return true;
 924 }
 925
 926 static bool
 927 intel_sdvo_set_input_timings_for_mode(struct intel_sdvo *intel_sdvo,
 928                                         struct drm_display_mode *mode,
 929                                         struct drm_display_mode *adjusted_mode)
 930 {
 931         /* Reset the input timing to the screen. Assume always input 0. */
 932         if (!intel_sdvo_set_target_input(intel_sdvo))
 933                 return false;
 934
 935         if (!intel_sdvo_create_preferred_input_timing(intel_sdvo,
 936                                                       mode->clock / 10,
 937                                                       mode->hdisplay,
 938                                                       mode->vdisplay))
 939                 return false;
 940
 941         if (!intel_sdvo_get_preferred_input_timing(intel_sdvo,
 942                                                    &intel_sdvo->input_dtd))
 943                 return false;
 944
 945         intel_sdvo_get_mode_from_dtd(adjusted_mode, &intel_sdvo->input_dtd);
 946
 947         return true;
 948 }
 949
 950 static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
 951                                   struct drm_display_mode *mode,
 952                                   struct drm_display_mode *adjusted_mode)
 953 {
 954         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
 955         int multiplier;
 956
 957         /* We need to construct preferred input timings based on our
 958          * output timings.  To do that, we have to set the output
 959          * timings, even though this isn't really the right place in
 960          * the sequence to do it. Oh well.
 961          */
 962         if (intel_sdvo->is_tv) {
 963                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
 964                         return false;
 965
 966                 (void) intel_sdvo_set_input_timings_for_mode(intel_sdvo,
 967                                                              mode,
 968                                                              adjusted_mode);
 969         } else if (intel_sdvo->is_lvds) {
 970                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
 971                                                              intel_sdvo->sdvo_lvds_fixed_mode))
 972                         return false;
 973
 974                 (void) intel_sdvo_set_input_timings_for_mode(intel_sdvo,
 975                                                              mode,
 976                                                              adjusted_mode);
 977         }
 978
 979         /* Make the CRTC code factor in the SDVO pixel multiplier.  The
 980          * SDVO device will factor out the multiplier during mode_set.
 981          */
 982         multiplier = intel_sdvo_get_pixel_multiplier(adjusted_mode);
 983         intel_mode_set_pixel_multiplier(adjusted_mode, multiplier);
 984
 985         return true;
 986 }
 987
 988 static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 989                                 struct drm_display_mode *mode,
 990                                 struct drm_display_mode *adjusted_mode)
 991 {
 992         struct drm_device *dev = encoder->dev;
 993         struct drm_i915_private *dev_priv = dev->dev_private;
 994         struct drm_crtc *crtc = encoder->crtc;
 995         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 996         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
 997         u32 sdvox;
 998         struct intel_sdvo_in_out_map in_out;
 999         struct intel_sdvo_dtd input_dtd;
1000         int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
1001         int rate;
1002
1003         if (!mode)
1004                 return;
1005
1006         /* First, set the input mapping for the first input to our controlled
1007          * output. This is only correct if we're a single-input device, in
1008          * which case the first input is the output from the appropriate SDVO
1009          * channel on the motherboard.  In a two-input device, the first input
1010          * will be SDVOB and the second SDVOC.
1011          */
1012         in_out.in0 = intel_sdvo->attached_output;
1013         in_out.in1 = 0;
1014
1015         intel_sdvo_set_value(intel_sdvo,
1016                              SDVO_CMD_SET_IN_OUT_MAP,
1017                              &in_out, sizeof(in_out));
1018
1019         /* Set the output timings to the screen */
1020         if (!intel_sdvo_set_target_output(intel_sdvo,
1021                                           intel_sdvo->attached_output))
1022                 return;
1023
1024         /* We have tried to get input timing in mode_fixup, and filled into
1025          * adjusted_mode.
1026          */
1027         if (intel_sdvo->is_tv || intel_sdvo->is_lvds) {
1028                 input_dtd = intel_sdvo->input_dtd;
1029         } else {
1030                 /* Set the output timing to the screen */
1031                 if (!intel_sdvo_set_target_output(intel_sdvo,
1032                                                   intel_sdvo->attached_output))
1033                         return;
1034
1035                 intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
1036                 (void) intel_sdvo_set_output_timing(intel_sdvo, &input_dtd);
1037         }
1038
1039         /* Set the input timing to the screen. Assume always input 0. */
1040         if (!intel_sdvo_set_target_input(intel_sdvo))
1041                 return;
1042
1043         if (intel_sdvo->has_hdmi_monitor) {
1044                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI);
1045                 intel_sdvo_set_colorimetry(intel_sdvo,
1046                                            SDVO_COLORIMETRY_RGB256);
1047                 intel_sdvo_set_avi_infoframe(intel_sdvo);
1048         } else
1049                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);
1050
1051         if (intel_sdvo->is_tv &&
1052             !intel_sdvo_set_tv_format(intel_sdvo))
1053                 return;
1054
1055         (void) intel_sdvo_set_input_timing(intel_sdvo, &input_dtd);
1056
1057         switch (pixel_multiplier) {
1058         default:
1059         case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break;
1060         case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break;
1061         case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break;
1062         }
1063         if (!intel_sdvo_set_clock_rate_mult(intel_sdvo, rate))
1064                 return;
1065
1066         /* Set the SDVO control regs. */
1067         if (INTEL_INFO(dev)->gen >= 4) {
1068                 /* The real mode polarity is set by the SDVO commands, using
1069                  * struct intel_sdvo_dtd. */
1070                 sdvox = SDVO_VSYNC_ACTIVE_HIGH | SDVO_HSYNC_ACTIVE_HIGH;
1071                 if (intel_sdvo->is_hdmi)
1072                         sdvox |= intel_sdvo->color_range;
1073                 if (INTEL_INFO(dev)->gen < 5)
1074                         sdvox |= SDVO_BORDER_ENABLE;
1075         } else {
1076                 sdvox = I915_READ(intel_sdvo->sdvo_reg);
1077                 switch (intel_sdvo->sdvo_reg) {
1078                 case SDVOB:
1079                         sdvox &= SDVOB_PRESERVE_MASK;
1080                         break;
1081                 case SDVOC:
1082                         sdvox &= SDVOC_PRESERVE_MASK;
1083                         break;
1084                 }
1085                 sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
1086         }
1087
1088         if (INTEL_PCH_TYPE(dev) >= PCH_CPT)
1089                 sdvox |= TRANSCODER_CPT(intel_crtc->pipe);
1090         else
1091                 sdvox |= TRANSCODER(intel_crtc->pipe);
1092
1093         if (intel_sdvo->has_hdmi_audio)
1094                 sdvox |= SDVO_AUDIO_ENABLE;
1095
1096         if (INTEL_INFO(dev)->gen >= 4) {
1097                 /* done in crtc_mode_set as the dpll_md reg must be written early */
1098         } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
1099                 /* done in crtc_mode_set as it lives inside the dpll register */
1100         } else {
1101                 sdvox |= (pixel_multiplier - 1) << SDVO_PORT_MULTIPLY_SHIFT;
1102         }
1103
1104         if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL &&
1105             INTEL_INFO(dev)->gen < 5)
1106                 sdvox |= SDVO_STALL_SELECT;
1107         intel_sdvo_write_sdvox(intel_sdvo, sdvox);
1108 }
1109
1110 static void intel_sdvo_dpms(struct drm_encoder *encoder, int mode)
1111 {
1112         struct drm_device *dev = encoder->dev;
1113         struct drm_i915_private *dev_priv = dev->dev_private;
1114         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
1115         struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
1116         u32 temp;
1117
1118         if (mode != DRM_MODE_DPMS_ON) {
1119                 intel_sdvo_set_active_outputs(intel_sdvo, 0);
1120                 if (0)
1121                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1122
1123                 if (mode == DRM_MODE_DPMS_OFF) {
1124                         temp = I915_READ(intel_sdvo->sdvo_reg);
1125                         if ((temp & SDVO_ENABLE) != 0) {
1126                                 intel_sdvo_write_sdvox(intel_sdvo, temp & ~SDVO_ENABLE);
1127                         }
1128                 }
1129         } else {
1130                 bool input1, input2;
1131                 int i;
1132                 u8 status;
1133
1134                 temp = I915_READ(intel_sdvo->sdvo_reg);
1135                 if ((temp & SDVO_ENABLE) == 0)
1136                         intel_sdvo_write_sdvox(intel_sdvo, temp | SDVO_ENABLE);
1137                 for (i = 0; i < 2; i++)
1138                         intel_wait_for_vblank(dev, intel_crtc->pipe);
1139
1140                 status = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2);
1141                 /* Warn if the device reported failure to sync.
1142                  * A lot of SDVO devices fail to notify of sync, but it's
1143                  * a given it the status is a success, we succeeded.
1144                  */
1145                 if (status == SDVO_CMD_STATUS_SUCCESS && !input1) {
1146                         DRM_DEBUG_KMS("First %s output reported failure to "
1147                                         "sync\n", SDVO_NAME(intel_sdvo));
1148                 }
1149
1150                 if (0)
1151                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1152                 intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1153         }
1154         return;
1155 }
1156
1157 static int intel_sdvo_mode_valid(struct drm_connector *connector,
1158                                  struct drm_display_mode *mode)
1159 {
1160         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1161
1162         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
1163                 return MODE_NO_DBLESCAN;
1164
1165         if (intel_sdvo->pixel_clock_min > mode->clock)
1166                 return MODE_CLOCK_LOW;
1167
1168         if (intel_sdvo->pixel_clock_max < mode->clock)
1169                 return MODE_CLOCK_HIGH;
1170
1171         if (intel_sdvo->is_lvds) {
1172                 if (mode->hdisplay > intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
1173                         return MODE_PANEL;
1174
1175                 if (mode->vdisplay > intel_sdvo->sdvo_lvds_fixed_mode->vdisplay)
1176                         return MODE_PANEL;
1177         }
1178
1179         return MODE_OK;
1180 }
1181
1182 static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct intel_sdvo_caps *caps)
1183 {
1184         BUILD_BUG_ON(sizeof(*caps) != 8);
1185         if (!intel_sdvo_get_value(intel_sdvo,
1186                                   SDVO_CMD_GET_DEVICE_CAPS,
1187                                   caps, sizeof(*caps)))
1188                 return false;
1189
1190         DRM_DEBUG_KMS("SDVO capabilities:\n"
1191                       "  vendor_id: %d\n"
1192                       "  device_id: %d\n"
1193                       "  device_rev_id: %d\n"
1194                       "  sdvo_version_major: %d\n"
1195                       "  sdvo_version_minor: %d\n"
1196                       "  sdvo_inputs_mask: %d\n"
1197                       "  smooth_scaling: %d\n"
1198                       "  sharp_scaling: %d\n"
1199                       "  up_scaling: %d\n"
1200                       "  down_scaling: %d\n"
1201                       "  stall_support: %d\n"
1202                       "  output_flags: %d\n",
1203                       caps->vendor_id,
1204                       caps->device_id,
1205                       caps->device_rev_id,
1206                       caps->sdvo_version_major,
1207                       caps->sdvo_version_minor,
1208                       caps->sdvo_inputs_mask,
1209                       caps->smooth_scaling,
1210                       caps->sharp_scaling,
1211                       caps->up_scaling,
1212                       caps->down_scaling,
1213                       caps->stall_support,
1214                       caps->output_flags);
1215
1216         return true;
1217 }
1218
1219 static int intel_sdvo_supports_hotplug(struct intel_sdvo *intel_sdvo)
1220 {
1221         u8 response[2];
1222
1223         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
1224                                     &response, 2) && response[0];
1225 }
1226
1227 static void intel_sdvo_enable_hotplug(struct intel_encoder *encoder)
1228 {
1229         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1230
1231         intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &intel_sdvo->hotplug_active, 2);
1232 }
1233
1234 static bool
1235 intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
1236 {
1237         /* Is there more than one type of output? */
1238         return hweight16(intel_sdvo->caps.output_flags) > 1;
1239 }
1240
1241 static struct edid *
1242 intel_sdvo_get_edid(struct drm_connector *connector)
1243 {
1244         struct intel_sdvo *sdvo = intel_attached_sdvo(connector);
1245         return drm_get_edid(connector, &sdvo->ddc);
1246 }
1247
1248 /* Mac mini hack -- use the same DDC as the analog connector */
1249 static struct edid *
1250 intel_sdvo_get_analog_edid(struct drm_connector *connector)
1251 {
1252         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1253
1254         return drm_get_edid(connector,
1255                             &dev_priv->gmbus[dev_priv->crt_ddc_pin].adapter);
1256 }
1257
1258 enum drm_connector_status
1259 intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
1260 {
1261         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1262         enum drm_connector_status status;
1263         struct edid *edid;
1264
1265         edid = intel_sdvo_get_edid(connector);
1266
1267         if (edid == NULL && intel_sdvo_multifunc_encoder(intel_sdvo)) {
1268                 u8 ddc, saved_ddc = intel_sdvo->ddc_bus;
1269
1270                 /*
1271                  * Don't use the 1 as the argument of DDC bus switch to get
1272                  * the EDID. It is used for SDVO SPD ROM.
1273                  */
1274                 for (ddc = intel_sdvo->ddc_bus >> 1; ddc > 1; ddc >>= 1) {
1275                         intel_sdvo->ddc_bus = ddc;
1276                         edid = intel_sdvo_get_edid(connector);
1277                         if (edid)
1278                                 break;
1279                 }
1280                 /*
1281                  * If we found the EDID on the other bus,
1282                  * assume that is the correct DDC bus.
1283                  */
1284                 if (edid == NULL)
1285                         intel_sdvo->ddc_bus = saved_ddc;
1286         }
1287
1288         /*
1289          * When there is no edid and no monitor is connected with VGA
1290          * port, try to use the CRT ddc to read the EDID for DVI-connector.
1291          */
1292         if (edid == NULL)
1293                 edid = intel_sdvo_get_analog_edid(connector);
1294
1295         status = connector_status_unknown;
1296         if (edid != NULL) {
1297                 /* DDC bus is shared, match EDID to connector type */
1298                 if (edid->input & DRM_EDID_INPUT_DIGITAL) {
1299                         status = connector_status_connected;
1300                         if (intel_sdvo->is_hdmi) {
1301                                 intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
1302                                 intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
1303                         }
1304                 } else
1305                         status = connector_status_disconnected;
1306                 connector->display_info.raw_edid = NULL;
1307                 kfree(edid);
1308         }
1309
1310         if (status == connector_status_connected) {
1311                 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1312                 if (intel_sdvo_connector->force_audio != HDMI_AUDIO_AUTO)
1313                         intel_sdvo->has_hdmi_audio = (intel_sdvo_connector->force_audio == HDMI_AUDIO_ON);
1314         }
1315
1316         return status;
1317 }
1318
1319 static bool
1320 intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
1321                                   struct edid *edid)
1322 {
1323         bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
1324         bool connector_is_digital = !!IS_DIGITAL(sdvo);
1325
1326         DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n",
1327                       connector_is_digital, monitor_is_digital);
1328         return connector_is_digital == monitor_is_digital;
1329 }
1330
1331 static enum drm_connector_status
1332 intel_sdvo_detect(struct drm_connector *connector, bool force)
1333 {
1334         uint16_t response;
1335         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1336         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1337         enum drm_connector_status ret;
1338
1339         if (!intel_sdvo_write_cmd(intel_sdvo,
1340                                   SDVO_CMD_GET_ATTACHED_DISPLAYS, NULL, 0))
1341                 return connector_status_unknown;
1342
1343         /* add 30ms delay when the output type might be TV */
1344         if (intel_sdvo->caps.output_flags &
1345             (SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_CVBS0))
1346                 mdelay(30);
1347
1348         if (!intel_sdvo_read_response(intel_sdvo, &response, 2))
1349                 return connector_status_unknown;
1350
1351         DRM_DEBUG_KMS("SDVO response %d %d [%x]\n",
1352                       response & 0xff, response >> 8,
1353                       intel_sdvo_connector->output_flag);
1354
1355         if (response == 0)
1356                 return connector_status_disconnected;
1357
1358         intel_sdvo->attached_output = response;
1359
1360         intel_sdvo->has_hdmi_monitor = false;
1361         intel_sdvo->has_hdmi_audio = false;
1362
1363         if ((intel_sdvo_connector->output_flag & response) == 0)
1364                 ret = connector_status_disconnected;
1365         else if (IS_TMDS(intel_sdvo_connector))
1366                 ret = intel_sdvo_tmds_sink_detect(connector);
1367         else {
1368                 struct edid *edid;
1369
1370                 /* if we have an edid check it matches the connection */
1371                 edid = intel_sdvo_get_edid(connector);
1372                 if (edid == NULL)
1373                         edid = intel_sdvo_get_analog_edid(connector);
1374                 if (edid != NULL) {
1375                         if (intel_sdvo_connector_matches_edid(intel_sdvo_connector,
1376                                                               edid))
1377                                 ret = connector_status_connected;
1378                         else
1379                                 ret = connector_status_disconnected;
1380
1381                         connector->display_info.raw_edid = NULL;
1382                         kfree(edid);
1383                 } else
1384                         ret = connector_status_connected;
1385         }
1386
1387         /* May update encoder flag for like clock for SDVO TV, etc.*/
1388         if (ret == connector_status_connected) {
1389                 intel_sdvo->is_tv = false;
1390                 intel_sdvo->is_lvds = false;
1391                 intel_sdvo->base.needs_tv_clock = false;
1392
1393                 if (response & SDVO_TV_MASK) {
1394                         intel_sdvo->is_tv = true;
1395                         intel_sdvo->base.needs_tv_clock = true;
1396                 }
1397                 if (response & SDVO_LVDS_MASK)
1398                         intel_sdvo->is_lvds = intel_sdvo->sdvo_lvds_fixed_mode != NULL;
1399         }
1400
1401         return ret;
1402 }
1403
1404 static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
1405 {
1406         struct edid *edid;
1407
1408         /* set the bus switch and get the modes */
1409         edid = intel_sdvo_get_edid(connector);
1410
1411         /*
1412          * Mac mini hack.  On this device, the DVI-I connector shares one DDC
1413          * link between analog and digital outputs. So, if the regular SDVO
1414          * DDC fails, check to see if the analog output is disconnected, in
1415          * which case we'll look there for the digital DDC data.
1416          */
1417         if (edid == NULL)
1418                 edid = intel_sdvo_get_analog_edid(connector);
1419
1420         if (edid != NULL) {
1421                 if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector),
1422                                                       edid)) {
1423                         drm_mode_connector_update_edid_property(connector, edid);
1424                         drm_add_edid_modes(connector, edid);
1425                 }
1426
1427                 connector->display_info.raw_edid = NULL;
1428                 kfree(edid);
1429         }
1430 }
1431
1432 /*
1433  * Set of SDVO TV modes.
1434  * Note!  This is in reply order (see loop in get_tv_modes).
1435  * XXX: all 60Hz refresh?
1436  */
1437 static const struct drm_display_mode sdvo_tv_modes[] = {
1438         { DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 5815, 320, 321, 384,
1439                    416, 0, 200, 201, 232, 233, 0,
1440                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1441         { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 6814, 320, 321, 384,
1442                    416, 0, 240, 241, 272, 273, 0,
1443                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1444         { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 9910, 400, 401, 464,
1445                    496, 0, 300, 301, 332, 333, 0,
1446                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1447         { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 16913, 640, 641, 704,
1448                    736, 0, 350, 351, 382, 383, 0,
1449                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1450         { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 19121, 640, 641, 704,
1451                    736, 0, 400, 401, 432, 433, 0,
1452                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1453         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 22654, 640, 641, 704,
1454                    736, 0, 480, 481, 512, 513, 0,
1455                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1456         { DRM_MODE("704x480", DRM_MODE_TYPE_DRIVER, 24624, 704, 705, 768,
1457                    800, 0, 480, 481, 512, 513, 0,
1458                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1459         { DRM_MODE("704x576", DRM_MODE_TYPE_DRIVER, 29232, 704, 705, 768,
1460                    800, 0, 576, 577, 608, 609, 0,
1461                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1462         { DRM_MODE("720x350", DRM_MODE_TYPE_DRIVER, 18751, 720, 721, 784,
1463                    816, 0, 350, 351, 382, 383, 0,
1464                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1465         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 21199, 720, 721, 784,
1466                    816, 0, 400, 401, 432, 433, 0,
1467                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1468         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 25116, 720, 721, 784,
1469                    816, 0, 480, 481, 512, 513, 0,
1470                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1471         { DRM_MODE("720x540", DRM_MODE_TYPE_DRIVER, 28054, 720, 721, 784,
1472                    816, 0, 540, 541, 572, 573, 0,
1473                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1474         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 29816, 720, 721, 784,
1475                    816, 0, 576, 577, 608, 609, 0,
1476                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1477         { DRM_MODE("768x576", DRM_MODE_TYPE_DRIVER, 31570, 768, 769, 832,
1478                    864, 0, 576, 577, 608, 609, 0,
1479                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1480         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 34030, 800, 801, 864,
1481                    896, 0, 600, 601, 632, 633, 0,
1482                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1483         { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 36581, 832, 833, 896,
1484                    928, 0, 624, 625, 656, 657, 0,
1485                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1486         { DRM_MODE("920x766", DRM_MODE_TYPE_DRIVER, 48707, 920, 921, 984,
1487                    1016, 0, 766, 767, 798, 799, 0,
1488                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1489         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 53827, 1024, 1025, 1088,
1490                    1120, 0, 768, 769, 800, 801, 0,
1491                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1492         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 87265, 1280, 1281, 1344,
1493                    1376, 0, 1024, 1025, 1056, 1057, 0,
1494                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1495 };
1496
1497 static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
1498 {
1499         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1500         struct intel_sdvo_sdtv_resolution_request tv_res;
1501         uint32_t reply = 0, format_map = 0;
1502         int i;
1503
1504         /* Read the list of supported input resolutions for the selected TV
1505          * format.
1506          */
1507         format_map = 1 << intel_sdvo->tv_format_index;
1508         memcpy(&tv_res, &format_map,
1509                min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request)));
1510
1511         if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo->attached_output))
1512                 return;
1513
1514         BUILD_BUG_ON(sizeof(tv_res) != 3);
1515         if (!intel_sdvo_write_cmd(intel_sdvo,
1516                                   SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT,
1517                                   &tv_res, sizeof(tv_res)))
1518                 return;
1519         if (!intel_sdvo_read_response(intel_sdvo, &reply, 3))
1520                 return;
1521
1522         for (i = 0; i < ARRAY_SIZE(sdvo_tv_modes); i++)
1523                 if (reply & (1 << i)) {
1524                         struct drm_display_mode *nmode;
1525                         nmode = drm_mode_duplicate(connector->dev,
1526                                                    &sdvo_tv_modes[i]);
1527                         if (nmode)
1528                                 drm_mode_probed_add(connector, nmode);
1529                 }
1530 }
1531
1532 static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
1533 {
1534         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1535         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1536         struct drm_display_mode *newmode;
1537
1538         /*
1539          * Attempt to get the mode list from DDC.
1540          * Assume that the preferred modes are
1541          * arranged in priority order.
1542          */
1543         intel_ddc_get_modes(connector, intel_sdvo->i2c);
1544         if (list_empty(&connector->probed_modes) == false)
1545                 goto end;
1546
1547         /* Fetch modes from VBT */
1548         if (dev_priv->sdvo_lvds_vbt_mode != NULL) {
1549                 newmode = drm_mode_duplicate(connector->dev,
1550                                              dev_priv->sdvo_lvds_vbt_mode);
1551                 if (newmode != NULL) {
1552                         /* Guarantee the mode is preferred */
1553                         newmode->type = (DRM_MODE_TYPE_PREFERRED |
1554                                          DRM_MODE_TYPE_DRIVER);
1555                         drm_mode_probed_add(connector, newmode);
1556                 }
1557         }
1558
1559 end:
1560         list_for_each_entry(newmode, &connector->probed_modes, head) {
1561                 if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
1562                         intel_sdvo->sdvo_lvds_fixed_mode =
1563                                 drm_mode_duplicate(connector->dev, newmode);
1564
1565                         drm_mode_set_crtcinfo(intel_sdvo->sdvo_lvds_fixed_mode,
1566                                               0);
1567
1568                         intel_sdvo->is_lvds = true;
1569                         break;
1570                 }
1571         }
1572
1573 }
1574
1575 static int intel_sdvo_get_modes(struct drm_connector *connector)
1576 {
1577         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1578
1579         if (IS_TV(intel_sdvo_connector))
1580                 intel_sdvo_get_tv_modes(connector);
1581         else if (IS_LVDS(intel_sdvo_connector))
1582                 intel_sdvo_get_lvds_modes(connector);
1583         else
1584                 intel_sdvo_get_ddc_modes(connector);
1585
1586         return !list_empty(&connector->probed_modes);
1587 }
1588
1589 static void
1590 intel_sdvo_destroy_enhance_property(struct drm_connector *connector)
1591 {
1592         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1593         struct drm_device *dev = connector->dev;
1594
1595         if (intel_sdvo_connector->left)
1596                 drm_property_destroy(dev, intel_sdvo_connector->left);
1597         if (intel_sdvo_connector->right)
1598                 drm_property_destroy(dev, intel_sdvo_connector->right);
1599         if (intel_sdvo_connector->top)
1600                 drm_property_destroy(dev, intel_sdvo_connector->top);
1601         if (intel_sdvo_connector->bottom)
1602                 drm_property_destroy(dev, intel_sdvo_connector->bottom);
1603         if (intel_sdvo_connector->hpos)
1604                 drm_property_destroy(dev, intel_sdvo_connector->hpos);
1605         if (intel_sdvo_connector->vpos)
1606                 drm_property_destroy(dev, intel_sdvo_connector->vpos);
1607         if (intel_sdvo_connector->saturation)
1608                 drm_property_destroy(dev, intel_sdvo_connector->saturation);
1609         if (intel_sdvo_connector->contrast)
1610                 drm_property_destroy(dev, intel_sdvo_connector->contrast);
1611         if (intel_sdvo_connector->hue)
1612                 drm_property_destroy(dev, intel_sdvo_connector->hue);
1613         if (intel_sdvo_connector->sharpness)
1614                 drm_property_destroy(dev, intel_sdvo_connector->sharpness);
1615         if (intel_sdvo_connector->flicker_filter)
1616                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter);
1617         if (intel_sdvo_connector->flicker_filter_2d)
1618                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_2d);
1619         if (intel_sdvo_connector->flicker_filter_adaptive)
1620                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_adaptive);
1621         if (intel_sdvo_connector->tv_luma_filter)
1622                 drm_property_destroy(dev, intel_sdvo_connector->tv_luma_filter);
1623         if (intel_sdvo_connector->tv_chroma_filter)
1624                 drm_property_destroy(dev, intel_sdvo_connector->tv_chroma_filter);
1625         if (intel_sdvo_connector->dot_crawl)
1626                 drm_property_destroy(dev, intel_sdvo_connector->dot_crawl);
1627         if (intel_sdvo_connector->brightness)
1628                 drm_property_destroy(dev, intel_sdvo_connector->brightness);
1629 }
1630
1631 static void intel_sdvo_destroy(struct drm_connector *connector)
1632 {
1633         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1634
1635         if (intel_sdvo_connector->tv_format)
1636                 drm_property_destroy(connector->dev,
1637                                      intel_sdvo_connector->tv_format);
1638
1639         intel_sdvo_destroy_enhance_property(connector);
1640         drm_sysfs_connector_remove(connector);
1641         drm_connector_cleanup(connector);
1642         kfree(connector);
1643 }
1644
1645 static bool intel_sdvo_detect_hdmi_audio(struct drm_connector *connector)
1646 {
1647         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1648         struct edid *edid;
1649         bool has_audio = false;
1650
1651         if (!intel_sdvo->is_hdmi)
1652                 return false;
1653
1654         edid = intel_sdvo_get_edid(connector);
1655         if (edid != NULL && edid->input & DRM_EDID_INPUT_DIGITAL)
1656                 has_audio = drm_detect_monitor_audio(edid);
1657
1658         return has_audio;
1659 }
1660
1661 static int
1662 intel_sdvo_set_property(struct drm_connector *connector,
1663                         struct drm_property *property,
1664                         uint64_t val)
1665 {
1666         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1667         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1668         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1669         uint16_t temp_value;
1670         uint8_t cmd;
1671         int ret;
1672
1673         ret = drm_connector_property_set_value(connector, property, val);
1674         if (ret)
1675                 return ret;
1676
1677         if (property == dev_priv->force_audio_property) {
1678                 int i = val;
1679                 bool has_audio;
1680
1681                 if (i == intel_sdvo_connector->force_audio)
1682                         return 0;
1683
1684                 intel_sdvo_connector->force_audio = i;
1685
1686                 if (i == HDMI_AUDIO_AUTO)
1687                         has_audio = intel_sdvo_detect_hdmi_audio(connector);
1688                 else
1689                         has_audio = (i == HDMI_AUDIO_ON);
1690
1691                 if (has_audio == intel_sdvo->has_hdmi_audio)
1692                         return 0;
1693
1694                 intel_sdvo->has_hdmi_audio = has_audio;
1695                 goto done;
1696         }
1697
1698         if (property == dev_priv->broadcast_rgb_property) {
1699                 if (val == !!intel_sdvo->color_range)
1700                         return 0;
1701
1702                 intel_sdvo->color_range = val ? SDVO_COLOR_RANGE_16_235 : 0;
1703                 goto done;
1704         }
1705
1706 #define CHECK_PROPERTY(name, NAME) \
1707         if (intel_sdvo_connector->name == property) { \
1708                 if (intel_sdvo_connector->cur_##name == temp_value) return 0; \
1709                 if (intel_sdvo_connector->max_##name < temp_value) return -EINVAL; \
1710                 cmd = SDVO_CMD_SET_##NAME; \
1711                 intel_sdvo_connector->cur_##name = temp_value; \
1712                 goto set_value; \
1713         }
1714
1715         if (property == intel_sdvo_connector->tv_format) {
1716                 if (val >= TV_FORMAT_NUM)
1717                         return -EINVAL;
1718
1719                 if (intel_sdvo->tv_format_index ==
1720                     intel_sdvo_connector->tv_format_supported[val])
1721                         return 0;
1722
1723                 intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[val];
1724                 goto done;
1725         } else if (IS_TV_OR_LVDS(intel_sdvo_connector)) {
1726                 temp_value = val;
1727                 if (intel_sdvo_connector->left == property) {
1728                         drm_connector_property_set_value(connector,
1729                                                          intel_sdvo_connector->right, val);
1730                         if (intel_sdvo_connector->left_margin == temp_value)
1731                                 return 0;
1732
1733                         intel_sdvo_connector->left_margin = temp_value;
1734                         intel_sdvo_connector->right_margin = temp_value;
1735                         temp_value = intel_sdvo_connector->max_hscan -
1736                                 intel_sdvo_connector->left_margin;
1737                         cmd = SDVO_CMD_SET_OVERSCAN_H;
1738                         goto set_value;
1739                 } else if (intel_sdvo_connector->right == property) {
1740                         drm_connector_property_set_value(connector,
1741                                                          intel_sdvo_connector->left, val);
1742                         if (intel_sdvo_connector->right_margin == temp_value)
1743                                 return 0;
1744
1745                         intel_sdvo_connector->left_margin = temp_value;
1746                         intel_sdvo_connector->right_margin = temp_value;
1747                         temp_value = intel_sdvo_connector->max_hscan -
1748                                 intel_sdvo_connector->left_margin;
1749                         cmd = SDVO_CMD_SET_OVERSCAN_H;
1750                         goto set_value;
1751                 } else if (intel_sdvo_connector->top == property) {
1752                         drm_connector_property_set_value(connector,
1753                                                          intel_sdvo_connector->bottom, val);
1754                         if (intel_sdvo_connector->top_margin == temp_value)
1755                                 return 0;
1756
1757                         intel_sdvo_connector->top_margin = temp_value;
1758                         intel_sdvo_connector->bottom_margin = temp_value;
1759                         temp_value = intel_sdvo_connector->max_vscan -
1760                                 intel_sdvo_connector->top_margin;
1761                         cmd = SDVO_CMD_SET_OVERSCAN_V;
1762                         goto set_value;
1763                 } else if (intel_sdvo_connector->bottom == property) {
1764                         drm_connector_property_set_value(connector,
1765                                                          intel_sdvo_connector->top, val);
1766                         if (intel_sdvo_connector->bottom_margin == temp_value)
1767                                 return 0;
1768
1769                         intel_sdvo_connector->top_margin = temp_value;
1770                         intel_sdvo_connector->bottom_margin = temp_value;
1771                         temp_value = intel_sdvo_connector->max_vscan -
1772                                 intel_sdvo_connector->top_margin;
1773                         cmd = SDVO_CMD_SET_OVERSCAN_V;
1774                         goto set_value;
1775                 }
1776                 CHECK_PROPERTY(hpos, HPOS)
1777                 CHECK_PROPERTY(vpos, VPOS)
1778                 CHECK_PROPERTY(saturation, SATURATION)
1779                 CHECK_PROPERTY(contrast, CONTRAST)
1780                 CHECK_PROPERTY(hue, HUE)
1781                 CHECK_PROPERTY(brightness, BRIGHTNESS)
1782                 CHECK_PROPERTY(sharpness, SHARPNESS)
1783                 CHECK_PROPERTY(flicker_filter, FLICKER_FILTER)
1784                 CHECK_PROPERTY(flicker_filter_2d, FLICKER_FILTER_2D)
1785                 CHECK_PROPERTY(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE)
1786                 CHECK_PROPERTY(tv_chroma_filter, TV_CHROMA_FILTER)
1787                 CHECK_PROPERTY(tv_luma_filter, TV_LUMA_FILTER)
1788                 CHECK_PROPERTY(dot_crawl, DOT_CRAWL)
1789         }
1790
1791         return -EINVAL; /* unknown property */
1792
1793 set_value:
1794         if (!intel_sdvo_set_value(intel_sdvo, cmd, &temp_value, 2))
1795                 return -EIO;
1796
1797
1798 done:
1799         if (intel_sdvo->base.base.crtc) {
1800                 struct drm_crtc *crtc = intel_sdvo->base.base.crtc;
1801                 drm_crtc_helper_set_mode(crtc, &crtc->mode, crtc->x,
1802                                          crtc->y, crtc->fb);
1803         }
1804
1805         return 0;
1806 #undef CHECK_PROPERTY
1807 }
1808
1809 static const struct drm_encoder_helper_funcs intel_sdvo_helper_funcs = {
1810         .dpms = intel_sdvo_dpms,
1811         .mode_fixup = intel_sdvo_mode_fixup,
1812         .prepare = intel_encoder_prepare,
1813         .mode_set = intel_sdvo_mode_set,
1814         .commit = intel_encoder_commit,
1815 };
1816
1817 static const struct drm_connector_funcs intel_sdvo_connector_funcs = {
1818         .dpms = drm_helper_connector_dpms,
1819         .detect = intel_sdvo_detect,
1820         .fill_modes = drm_helper_probe_single_connector_modes,
1821         .set_property = intel_sdvo_set_property,
1822         .destroy = intel_sdvo_destroy,
1823 };
1824
1825 static const struct drm_connector_helper_funcs intel_sdvo_connector_helper_funcs = {
1826         .get_modes = intel_sdvo_get_modes,
1827         .mode_valid = intel_sdvo_mode_valid,
1828         .best_encoder = intel_best_encoder,
1829 };
1830
1831 static void intel_sdvo_enc_destroy(struct drm_encoder *encoder)
1832 {
1833         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
1834
1835         if (intel_sdvo->sdvo_lvds_fixed_mode != NULL)
1836                 drm_mode_destroy(encoder->dev,
1837                                  intel_sdvo->sdvo_lvds_fixed_mode);
1838
1839         i2c_del_adapter(&intel_sdvo->ddc);
1840         intel_encoder_destroy(encoder);
1841 }
1842
1843 static const struct drm_encoder_funcs intel_sdvo_enc_funcs = {
1844         .destroy = intel_sdvo_enc_destroy,
1845 };
1846
1847 static void
1848 intel_sdvo_guess_ddc_bus(struct intel_sdvo *sdvo)
1849 {
1850         uint16_t mask = 0;
1851         unsigned int num_bits;
1852
1853         /* Make a mask of outputs less than or equal to our own priority in the
1854          * list.
1855          */
1856         switch (sdvo->controlled_output) {
1857         case SDVO_OUTPUT_LVDS1:
1858                 mask |= SDVO_OUTPUT_LVDS1;
1859         case SDVO_OUTPUT_LVDS0:
1860                 mask |= SDVO_OUTPUT_LVDS0;
1861         case SDVO_OUTPUT_TMDS1:
1862                 mask |= SDVO_OUTPUT_TMDS1;
1863         case SDVO_OUTPUT_TMDS0:
1864                 mask |= SDVO_OUTPUT_TMDS0;
1865         case SDVO_OUTPUT_RGB1:
1866                 mask |= SDVO_OUTPUT_RGB1;
1867         case SDVO_OUTPUT_RGB0:
1868                 mask |= SDVO_OUTPUT_RGB0;
1869                 break;
1870         }
1871
1872         /* Count bits to find what number we are in the priority list. */
1873         mask &= sdvo->caps.output_flags;
1874         num_bits = hweight16(mask);
1875         /* If more than 3 outputs, default to DDC bus 3 for now. */
1876         if (num_bits > 3)
1877                 num_bits = 3;
1878
1879         /* Corresponds to SDVO_CONTROL_BUS_DDCx */
1880         sdvo->ddc_bus = 1 << num_bits;
1881 }
1882
1883 /**
1884  * Choose the appropriate DDC bus for control bus switch command for this
1885  * SDVO output based on the controlled output.
1886  *
1887  * DDC bus number assignment is in a priority order of RGB outputs, then TMDS
1888  * outputs, then LVDS outputs.
1889  */
1890 static void
1891 intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv,
1892                           struct intel_sdvo *sdvo, u32 reg)
1893 {
1894         struct sdvo_device_mapping *mapping;
1895
1896         if (IS_SDVOB(reg))
1897                 mapping = &(dev_priv->sdvo_mappings[0]);
1898         else
1899                 mapping = &(dev_priv->sdvo_mappings[1]);
1900
1901         if (mapping->initialized)
1902                 sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
1903         else
1904                 intel_sdvo_guess_ddc_bus(sdvo);
1905 }
1906
1907 static void
1908 intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
1909                           struct intel_sdvo *sdvo, u32 reg)
1910 {
1911         struct sdvo_device_mapping *mapping;
1912         u8 pin;
1913
1914         if (IS_SDVOB(reg))
1915                 mapping = &dev_priv->sdvo_mappings[0];
1916         else
1917                 mapping = &dev_priv->sdvo_mappings[1];
1918
1919         pin = GMBUS_PORT_DPB;
1920         if (mapping->initialized)
1921                 pin = mapping->i2c_pin;
1922
1923         if (pin < GMBUS_NUM_PORTS) {
1924                 sdvo->i2c = &dev_priv->gmbus[pin].adapter;
1925                 intel_gmbus_set_speed(sdvo->i2c, GMBUS_RATE_1MHZ);
1926                 intel_gmbus_force_bit(sdvo->i2c, true);
1927         } else {
1928                 sdvo->i2c = &dev_priv->gmbus[GMBUS_PORT_DPB].adapter;
1929         }
1930 }
1931
1932 static bool
1933 intel_sdvo_is_hdmi_connector(struct intel_sdvo *intel_sdvo, int device)
1934 {
1935         return intel_sdvo_check_supp_encode(intel_sdvo);
1936 }
1937
1938 static u8
1939 intel_sdvo_get_slave_addr(struct drm_device *dev, int sdvo_reg)
1940 {
1941         struct drm_i915_private *dev_priv = dev->dev_private;
1942         struct sdvo_device_mapping *my_mapping, *other_mapping;
1943
1944         if (IS_SDVOB(sdvo_reg)) {
1945                 my_mapping = &dev_priv->sdvo_mappings[0];
1946                 other_mapping = &dev_priv->sdvo_mappings[1];
1947         } else {
1948                 my_mapping = &dev_priv->sdvo_mappings[1];
1949                 other_mapping = &dev_priv->sdvo_mappings[0];
1950         }
1951
1952         /* If the BIOS described our SDVO device, take advantage of it. */
1953         if (my_mapping->slave_addr)
1954                 return my_mapping->slave_addr;
1955
1956         /* If the BIOS only described a different SDVO device, use the
1957          * address that it isn't using.
1958          */
1959         if (other_mapping->slave_addr) {
1960                 if (other_mapping->slave_addr == 0x70)
1961                         return 0x72;
1962                 else
1963                         return 0x70;
1964         }
1965
1966         /* No SDVO device info is found for another DVO port,
1967          * so use mapping assumption we had before BIOS parsing.
1968          */
1969         if (IS_SDVOB(sdvo_reg))
1970                 return 0x70;
1971         else
1972                 return 0x72;
1973 }
1974
1975 static void
1976 intel_sdvo_connector_init(struct intel_sdvo_connector *connector,
1977                           struct intel_sdvo *encoder)
1978 {
1979         drm_connector_init(encoder->base.base.dev,
1980                            &connector->base.base,
1981                            &intel_sdvo_connector_funcs,
1982                            connector->base.base.connector_type);
1983
1984         drm_connector_helper_add(&connector->base.base,
1985                                  &intel_sdvo_connector_helper_funcs);
1986
1987         connector->base.base.interlace_allowed = 1;
1988         connector->base.base.doublescan_allowed = 0;
1989         connector->base.base.display_info.subpixel_order = SubPixelHorizontalRGB;
1990
1991         intel_connector_attach_encoder(&connector->base, &encoder->base);
1992         drm_sysfs_connector_add(&connector->base.base);
1993 }
1994
1995 static void
1996 intel_sdvo_add_hdmi_properties(struct intel_sdvo_connector *connector)
1997 {
1998         struct drm_device *dev = connector->base.base.dev;
1999
2000         intel_attach_force_audio_property(&connector->base.base);
2001         if (INTEL_INFO(dev)->gen >= 4 && IS_MOBILE(dev))
2002                 intel_attach_broadcast_rgb_property(&connector->base.base);
2003 }
2004
2005 static bool
2006 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
2007 {
2008         struct drm_encoder *encoder = &intel_sdvo->base.base;
2009         struct drm_connector *connector;
2010         struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
2011         struct intel_connector *intel_connector;
2012         struct intel_sdvo_connector *intel_sdvo_connector;
2013
2014         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2015         if (!intel_sdvo_connector)
2016                 return false;
2017
2018         if (device == 0) {
2019                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS0;
2020                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS0;
2021         } else if (device == 1) {
2022                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS1;
2023                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS1;
2024         }
2025
2026         intel_connector = &intel_sdvo_connector->base;
2027         connector = &intel_connector->base;
2028         if (intel_sdvo_supports_hotplug(intel_sdvo) & (1 << device)) {
2029                 connector->polled = DRM_CONNECTOR_POLL_HPD;
2030                 intel_sdvo->hotplug_active[0] |= 1 << device;
2031                 /* Some SDVO devices have one-shot hotplug interrupts.
2032                  * Ensure that they get re-enabled when an interrupt happens.
2033                  */
2034                 intel_encoder->hot_plug = intel_sdvo_enable_hotplug;
2035                 intel_sdvo_enable_hotplug(intel_encoder);
2036         }
2037         else
2038                 connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
2039         encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
2040         connector->connector_type = DRM_MODE_CONNECTOR_DVID;
2041
2042         if (intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
2043                 connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
2044                 intel_sdvo->is_hdmi = true;
2045         }
2046         intel_sdvo->base.clone_mask = ((1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
2047                                        (1 << INTEL_ANALOG_CLONE_BIT));
2048
2049         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2050         if (intel_sdvo->is_hdmi)
2051                 intel_sdvo_add_hdmi_properties(intel_sdvo_connector);
2052
2053         return true;
2054 }
2055
2056 static bool
2057 intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
2058 {
2059         struct drm_encoder *encoder = &intel_sdvo->base.base;
2060         struct drm_connector *connector;
2061         struct intel_connector *intel_connector;
2062         struct intel_sdvo_connector *intel_sdvo_connector;
2063
2064         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2065         if (!intel_sdvo_connector)
2066                 return false;
2067
2068         intel_connector = &intel_sdvo_connector->base;
2069         connector = &intel_connector->base;
2070         encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
2071         connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
2072
2073         intel_sdvo->controlled_output |= type;
2074         intel_sdvo_connector->output_flag = type;
2075
2076         intel_sdvo->is_tv = true;
2077         intel_sdvo->base.needs_tv_clock = true;
2078         intel_sdvo->base.clone_mask = 1 << INTEL_SDVO_TV_CLONE_BIT;
2079
2080         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2081
2082         if (!intel_sdvo_tv_create_property(intel_sdvo, intel_sdvo_connector, type))
2083                 goto err;
2084
2085         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2086                 goto err;
2087
2088         return true;
2089
2090 err:
2091         intel_sdvo_destroy(connector);
2092         return false;
2093 }
2094
2095 static bool
2096 intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device)
2097 {
2098         struct drm_encoder *encoder = &intel_sdvo->base.base;
2099         struct drm_connector *connector;
2100         struct intel_connector *intel_connector;
2101         struct intel_sdvo_connector *intel_sdvo_connector;
2102
2103         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2104         if (!intel_sdvo_connector)
2105                 return false;
2106
2107         intel_connector = &intel_sdvo_connector->base;
2108         connector = &intel_connector->base;
2109         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
2110         encoder->encoder_type = DRM_MODE_ENCODER_DAC;
2111         connector->connector_type = DRM_MODE_CONNECTOR_VGA;
2112
2113         if (device == 0) {
2114                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB0;
2115                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB0;
2116         } else if (device == 1) {
2117                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB1;
2118                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1;
2119         }
2120
2121         intel_sdvo->base.clone_mask = ((1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
2122                                        (1 << INTEL_ANALOG_CLONE_BIT));
2123
2124         intel_sdvo_connector_init(intel_sdvo_connector,
2125                                   intel_sdvo);
2126         return true;
2127 }
2128
2129 static bool
2130 intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
2131 {
2132         struct drm_encoder *encoder = &intel_sdvo->base.base;
2133         struct drm_connector *connector;
2134         struct intel_connector *intel_connector;
2135         struct intel_sdvo_connector *intel_sdvo_connector;
2136
2137         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2138         if (!intel_sdvo_connector)
2139                 return false;
2140
2141         intel_connector = &intel_sdvo_connector->base;
2142         connector = &intel_connector->base;
2143         encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
2144         connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
2145
2146         if (device == 0) {
2147                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS0;
2148                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS0;
2149         } else if (device == 1) {
2150                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS1;
2151                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1;
2152         }
2153
2154         intel_sdvo->base.clone_mask = ((1 << INTEL_ANALOG_CLONE_BIT) |
2155                                        (1 << INTEL_SDVO_LVDS_CLONE_BIT));
2156
2157         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2158         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2159                 goto err;
2160
2161         return true;
2162
2163 err:
2164         intel_sdvo_destroy(connector);
2165         return false;
2166 }
2167
2168 static bool
2169 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
2170 {
2171         intel_sdvo->is_tv = false;
2172         intel_sdvo->base.needs_tv_clock = false;
2173         intel_sdvo->is_lvds = false;
2174
2175         /* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
2176
2177         if (flags & SDVO_OUTPUT_TMDS0)
2178                 if (!intel_sdvo_dvi_init(intel_sdvo, 0))
2179                         return false;
2180
2181         if ((flags & SDVO_TMDS_MASK) == SDVO_TMDS_MASK)
2182                 if (!intel_sdvo_dvi_init(intel_sdvo, 1))
2183                         return false;
2184
2185         /* TV has no XXX1 function block */
2186         if (flags & SDVO_OUTPUT_SVID0)
2187                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_SVID0))
2188                         return false;
2189
2190         if (flags & SDVO_OUTPUT_CVBS0)
2191                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_CVBS0))
2192                         return false;
2193
2194         if (flags & SDVO_OUTPUT_RGB0)
2195                 if (!intel_sdvo_analog_init(intel_sdvo, 0))
2196                         return false;
2197
2198         if ((flags & SDVO_RGB_MASK) == SDVO_RGB_MASK)
2199                 if (!intel_sdvo_analog_init(intel_sdvo, 1))
2200                         return false;
2201
2202         if (flags & SDVO_OUTPUT_LVDS0)
2203                 if (!intel_sdvo_lvds_init(intel_sdvo, 0))
2204                         return false;
2205
2206         if ((flags & SDVO_LVDS_MASK) == SDVO_LVDS_MASK)
2207                 if (!intel_sdvo_lvds_init(intel_sdvo, 1))
2208                         return false;
2209
2210         if ((flags & SDVO_OUTPUT_MASK) == 0) {
2211                 unsigned char bytes[2];
2212
2213                 intel_sdvo->controlled_output = 0;
2214                 memcpy(bytes, &intel_sdvo->caps.output_flags, 2);
2215                 DRM_DEBUG_KMS("%s: Unknown SDVO output type (0x%02x%02x)\n",
2216                               SDVO_NAME(intel_sdvo),
2217                               bytes[0], bytes[1]);
2218                 return false;
2219         }
2220         intel_sdvo->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
2221
2222         return true;
2223 }
2224
2225 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
2226                                           struct intel_sdvo_connector *intel_sdvo_connector,
2227                                           int type)
2228 {
2229         struct drm_device *dev = intel_sdvo->base.base.dev;
2230         struct intel_sdvo_tv_format format;
2231         uint32_t format_map, i;
2232
2233         if (!intel_sdvo_set_target_output(intel_sdvo, type))
2234                 return false;
2235
2236         BUILD_BUG_ON(sizeof(format) != 6);
2237         if (!intel_sdvo_get_value(intel_sdvo,
2238                                   SDVO_CMD_GET_SUPPORTED_TV_FORMATS,
2239                                   &format, sizeof(format)))
2240                 return false;
2241
2242         memcpy(&format_map, &format, min(sizeof(format_map), sizeof(format)));
2243
2244         if (format_map == 0)
2245                 return false;
2246
2247         intel_sdvo_connector->format_supported_num = 0;
2248         for (i = 0 ; i < TV_FORMAT_NUM; i++)
2249                 if (format_map & (1 << i))
2250                         intel_sdvo_connector->tv_format_supported[intel_sdvo_connector->format_supported_num++] = i;
2251
2252
2253         intel_sdvo_connector->tv_format =
2254                         drm_property_create(dev, DRM_MODE_PROP_ENUM,
2255                                             "mode", intel_sdvo_connector->format_supported_num);
2256         if (!intel_sdvo_connector->tv_format)
2257                 return false;
2258
2259         for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
2260                 drm_property_add_enum(
2261                                 intel_sdvo_connector->tv_format, i,
2262                                 i, tv_format_names[intel_sdvo_connector->tv_format_supported[i]]);
2263
2264         intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[0];
2265         drm_connector_attach_property(&intel_sdvo_connector->base.base,
2266                                       intel_sdvo_connector->tv_format, 0);
2267         return true;
2268
2269 }
2270
2271 #define ENHANCEMENT(name, NAME) do { \
2272         if (enhancements.name) { \
2273                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_MAX_##NAME, &data_value, 4) || \
2274                     !intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_##NAME, &response, 2)) \
2275                         return false; \
2276                 intel_sdvo_connector->max_##name = data_value[0]; \
2277                 intel_sdvo_connector->cur_##name = response; \
2278                 intel_sdvo_connector->name = \
2279                         drm_property_create_range(dev, 0, #name, 0, data_value[0]); \
2280                 if (!intel_sdvo_connector->name) return false; \
2281                 drm_connector_attach_property(connector, \
2282                                               intel_sdvo_connector->name, \
2283                                               intel_sdvo_connector->cur_##name); \
2284                 DRM_DEBUG_KMS(#name ": max %d, default %d, current %d\n", \
2285                               data_value[0], data_value[1], response); \
2286         } \
2287 } while (0)
2288
2289 static bool
2290 intel_sdvo_create_enhance_property_tv(struct intel_sdvo *intel_sdvo,
2291                                       struct intel_sdvo_connector *intel_sdvo_connector,
2292                                       struct intel_sdvo_enhancements_reply enhancements)
2293 {
2294         struct drm_device *dev = intel_sdvo->base.base.dev;
2295         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2296         uint16_t response, data_value[2];
2297
2298         /* when horizontal overscan is supported, Add the left/right  property */
2299         if (enhancements.overscan_h) {
2300                 if (!intel_sdvo_get_value(intel_sdvo,
2301                                           SDVO_CMD_GET_MAX_OVERSCAN_H,
2302                                           &data_value, 4))
2303                         return false;
2304
2305                 if (!intel_sdvo_get_value(intel_sdvo,
2306                                           SDVO_CMD_GET_OVERSCAN_H,
2307                                           &response, 2))
2308                         return false;
2309
2310                 intel_sdvo_connector->max_hscan = data_value[0];
2311                 intel_sdvo_connector->left_margin = data_value[0] - response;
2312                 intel_sdvo_connector->right_margin = intel_sdvo_connector->left_margin;
2313                 intel_sdvo_connector->left =
2314                         drm_property_create_range(dev, 0, "left_margin", 0, data_value[0]);
2315                 if (!intel_sdvo_connector->left)
2316                         return false;
2317
2318                 drm_connector_attach_property(connector,
2319                                               intel_sdvo_connector->left,
2320                                               intel_sdvo_connector->left_margin);
2321
2322                 intel_sdvo_connector->right =
2323                         drm_property_create_range(dev, 0, "right_margin", 0, data_value[0]);
2324                 if (!intel_sdvo_connector->right)
2325                         return false;
2326
2327                 drm_connector_attach_property(connector,
2328                                               intel_sdvo_connector->right,
2329                                               intel_sdvo_connector->right_margin);
2330                 DRM_DEBUG_KMS("h_overscan: max %d, "
2331                               "default %d, current %d\n",
2332                               data_value[0], data_value[1], response);
2333         }
2334
2335         if (enhancements.overscan_v) {
2336                 if (!intel_sdvo_get_value(intel_sdvo,
2337                                           SDVO_CMD_GET_MAX_OVERSCAN_V,
2338                                           &data_value, 4))
2339                         return false;
2340
2341                 if (!intel_sdvo_get_value(intel_sdvo,
2342                                           SDVO_CMD_GET_OVERSCAN_V,
2343                                           &response, 2))
2344                         return false;
2345
2346                 intel_sdvo_connector->max_vscan = data_value[0];
2347                 intel_sdvo_connector->top_margin = data_value[0] - response;
2348                 intel_sdvo_connector->bottom_margin = intel_sdvo_connector->top_margin;
2349                 intel_sdvo_connector->top =
2350                         drm_property_create_range(dev, 0,
2351                                             "top_margin", 0, data_value[0]);
2352                 if (!intel_sdvo_connector->top)
2353                         return false;
2354
2355                 drm_connector_attach_property(connector,
2356                                               intel_sdvo_connector->top,
2357                                               intel_sdvo_connector->top_margin);
2358
2359                 intel_sdvo_connector->bottom =
2360                         drm_property_create_range(dev, 0,
2361                                             "bottom_margin", 0, data_value[0]);
2362                 if (!intel_sdvo_connector->bottom)
2363                         return false;
2364
2365                 drm_connector_attach_property(connector,
2366                                               intel_sdvo_connector->bottom,
2367                                               intel_sdvo_connector->bottom_margin);
2368                 DRM_DEBUG_KMS("v_overscan: max %d, "
2369                               "default %d, current %d\n",
2370                               data_value[0], data_value[1], response);
2371         }
2372
2373         ENHANCEMENT(hpos, HPOS);
2374         ENHANCEMENT(vpos, VPOS);
2375         ENHANCEMENT(saturation, SATURATION);
2376         ENHANCEMENT(contrast, CONTRAST);
2377         ENHANCEMENT(hue, HUE);
2378         ENHANCEMENT(sharpness, SHARPNESS);
2379         ENHANCEMENT(brightness, BRIGHTNESS);
2380         ENHANCEMENT(flicker_filter, FLICKER_FILTER);
2381         ENHANCEMENT(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
2382         ENHANCEMENT(flicker_filter_2d, FLICKER_FILTER_2D);
2383         ENHANCEMENT(tv_chroma_filter, TV_CHROMA_FILTER);
2384         ENHANCEMENT(tv_luma_filter, TV_LUMA_FILTER);
2385
2386         if (enhancements.dot_crawl) {
2387                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_DOT_CRAWL, &response, 2))
2388                         return false;
2389
2390                 intel_sdvo_connector->max_dot_crawl = 1;
2391                 intel_sdvo_connector->cur_dot_crawl = response & 0x1;
2392                 intel_sdvo_connector->dot_crawl =
2393                         drm_property_create_range(dev, 0, "dot_crawl", 0, 1);
2394                 if (!intel_sdvo_connector->dot_crawl)
2395                         return false;
2396
2397                 drm_connector_attach_property(connector,
2398                                               intel_sdvo_connector->dot_crawl,
2399                                               intel_sdvo_connector->cur_dot_crawl);
2400                 DRM_DEBUG_KMS("dot crawl: current %d\n", response);
2401         }
2402
2403         return true;
2404 }
2405
2406 static bool
2407 intel_sdvo_create_enhance_property_lvds(struct intel_sdvo *intel_sdvo,
2408                                         struct intel_sdvo_connector *intel_sdvo_connector,
2409                                         struct intel_sdvo_enhancements_reply enhancements)
2410 {
2411         struct drm_device *dev = intel_sdvo->base.base.dev;
2412         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2413         uint16_t response, data_value[2];
2414
2415         ENHANCEMENT(brightness, BRIGHTNESS);
2416
2417         return true;
2418 }
2419 #undef ENHANCEMENT
2420
2421 static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
2422                                                struct intel_sdvo_connector *intel_sdvo_connector)
2423 {
2424         union {
2425                 struct intel_sdvo_enhancements_reply reply;
2426                 uint16_t response;
2427         } enhancements;
2428
2429         BUILD_BUG_ON(sizeof(enhancements) != 2);
2430
2431         enhancements.response = 0;
2432         intel_sdvo_get_value(intel_sdvo,
2433                              SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
2434                              &enhancements, sizeof(enhancements));
2435         if (enhancements.response == 0) {
2436                 DRM_DEBUG_KMS("No enhancement is supported\n");
2437                 return true;
2438         }
2439
2440         if (IS_TV(intel_sdvo_connector))
2441                 return intel_sdvo_create_enhance_property_tv(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2442         else if (IS_LVDS(intel_sdvo_connector))
2443                 return intel_sdvo_create_enhance_property_lvds(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2444         else
2445                 return true;
2446 }
2447
2448 static int intel_sdvo_ddc_proxy_xfer(struct i2c_adapter *adapter,
2449                                      struct i2c_msg *msgs,
2450                                      int num)
2451 {
2452         struct intel_sdvo *sdvo = adapter->algo_data;
2453
2454         if (!intel_sdvo_set_control_bus_switch(sdvo, sdvo->ddc_bus))
2455                 return -EIO;
2456
2457         return sdvo->i2c->algo->master_xfer(sdvo->i2c, msgs, num);
2458 }
2459
2460 static u32 intel_sdvo_ddc_proxy_func(struct i2c_adapter *adapter)
2461 {
2462         struct intel_sdvo *sdvo = adapter->algo_data;
2463         return sdvo->i2c->algo->functionality(sdvo->i2c);
2464 }
2465
2466 static const struct i2c_algorithm intel_sdvo_ddc_proxy = {
2467         .master_xfer    = intel_sdvo_ddc_proxy_xfer,
2468         .functionality  = intel_sdvo_ddc_proxy_func
2469 };
2470
2471 static bool
2472 intel_sdvo_init_ddc_proxy(struct intel_sdvo *sdvo,
2473                           struct drm_device *dev)
2474 {
2475         sdvo->ddc.owner = THIS_MODULE;
2476         sdvo->ddc.class = I2C_CLASS_DDC;
2477         snprintf(sdvo->ddc.name, I2C_NAME_SIZE, "SDVO DDC proxy");
2478         sdvo->ddc.dev.parent = &dev->pdev->dev;
2479         sdvo->ddc.algo_data = sdvo;
2480         sdvo->ddc.algo = &intel_sdvo_ddc_proxy;
2481
2482         return i2c_add_adapter(&sdvo->ddc) == 0;
2483 }
2484
2485 bool intel_sdvo_init(struct drm_device *dev, int sdvo_reg)
2486 {
2487         struct drm_i915_private *dev_priv = dev->dev_private;
2488         struct intel_encoder *intel_encoder;
2489         struct intel_sdvo *intel_sdvo;
2490         int i;
2491
2492         intel_sdvo = kzalloc(sizeof(struct intel_sdvo), GFP_KERNEL);
2493         if (!intel_sdvo)
2494                 return false;
2495
2496         intel_sdvo->sdvo_reg = sdvo_reg;
2497         intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(dev, sdvo_reg) >> 1;
2498         intel_sdvo_select_i2c_bus(dev_priv, intel_sdvo, sdvo_reg);
2499         if (!intel_sdvo_init_ddc_proxy(intel_sdvo, dev)) {
2500                 kfree(intel_sdvo);
2501                 return false;
2502         }
2503
2504         /* encoder type will be decided later */
2505         intel_encoder = &intel_sdvo->base;
2506         intel_encoder->type = INTEL_OUTPUT_SDVO;
2507         drm_encoder_init(dev, &intel_encoder->base, &intel_sdvo_enc_funcs, 0);
2508
2509         /* Read the regs to test if we can talk to the device */
2510         for (i = 0; i < 0x40; i++) {
2511                 u8 byte;
2512
2513                 if (!intel_sdvo_read_byte(intel_sdvo, i, &byte)) {
2514                         DRM_DEBUG_KMS("No SDVO device found on SDVO%c\n",
2515                                       IS_SDVOB(sdvo_reg) ? 'B' : 'C');
2516                         goto err;
2517                 }
2518         }
2519
2520         if (IS_SDVOB(sdvo_reg))
2521                 dev_priv->hotplug_supported_mask |= SDVOB_HOTPLUG_INT_STATUS;
2522         else
2523                 dev_priv->hotplug_supported_mask |= SDVOC_HOTPLUG_INT_STATUS;
2524
2525         drm_encoder_helper_add(&intel_encoder->base, &intel_sdvo_helper_funcs);
2526
2527         /* In default case sdvo lvds is false */
2528         if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
2529                 goto err;
2530
2531         /* Set up hotplug command - note paranoia about contents of reply.
2532          * We assume that the hardware is in a sane state, and only touch
2533          * the bits we think we understand.
2534          */
2535         intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG,
2536                              &intel_sdvo->hotplug_active, 2);
2537         intel_sdvo->hotplug_active[0] &= ~0x3;
2538
2539         if (intel_sdvo_output_setup(intel_sdvo,
2540                                     intel_sdvo->caps.output_flags) != true) {
2541                 DRM_DEBUG_KMS("SDVO output failed to setup on SDVO%c\n",
2542                               IS_SDVOB(sdvo_reg) ? 'B' : 'C');
2543                 goto err;
2544         }
2545
2546         intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo, sdvo_reg);
2547
2548         /* Set the input timing to the screen. Assume always input 0. */
2549         if (!intel_sdvo_set_target_input(intel_sdvo))
2550                 goto err;
2551
2552         if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
2553                                                     &intel_sdvo->pixel_clock_min,
2554                                                     &intel_sdvo->pixel_clock_max))
2555                 goto err;
2556
2557         DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
2558                         "clock range %dMHz - %dMHz, "
2559                         "input 1: %c, input 2: %c, "
2560                         "output 1: %c, output 2: %c\n",
2561                         SDVO_NAME(intel_sdvo),
2562                         intel_sdvo->caps.vendor_id, intel_sdvo->caps.device_id,
2563                         intel_sdvo->caps.device_rev_id,
2564                         intel_sdvo->pixel_clock_min / 1000,
2565                         intel_sdvo->pixel_clock_max / 1000,
2566                         (intel_sdvo->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
2567                         (intel_sdvo->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
2568                         /* check currently supported outputs */
2569                         intel_sdvo->caps.output_flags &
2570                         (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
2571                         intel_sdvo->caps.output_flags &
2572                         (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
2573         return true;
2574
2575 err:
2576         drm_encoder_cleanup(&intel_encoder->base);
2577         i2c_del_adapter(&intel_sdvo->ddc);
2578         kfree(intel_sdvo);
2579
2580         return false;
2581 }