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 | SDVO_OUTPUT_YPRPB0)
  45
  46 #define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK |\
  47                         SDVO_TV_MASK)
  48
  49 #define IS_TV(c)        (c->output_flag & SDVO_TV_MASK)
  50 #define IS_TMDS(c)      (c->output_flag & SDVO_TMDS_MASK)
  51 #define IS_LVDS(c)      (c->output_flag & SDVO_LVDS_MASK)
  52 #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
  53 #define IS_DIGITAL(c) (c->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK))
  54
  55
  56 static const char *tv_format_names[] = {
  57         "NTSC_M"   , "NTSC_J"  , "NTSC_443",
  58         "PAL_B"    , "PAL_D"   , "PAL_G"   ,
  59         "PAL_H"    , "PAL_I"   , "PAL_M"   ,
  60         "PAL_N"    , "PAL_NC"  , "PAL_60"  ,
  61         "SECAM_B"  , "SECAM_D" , "SECAM_G" ,
  62         "SECAM_K"  , "SECAM_K1", "SECAM_L" ,
  63         "SECAM_60"
  64 };
  65
  66 #define TV_FORMAT_NUM  (sizeof(tv_format_names) / sizeof(*tv_format_names))
  67
  68 struct intel_sdvo {
  69         struct intel_encoder base;
  70
  71         struct i2c_adapter *i2c;
  72         u8 slave_addr;
  73
  74         struct i2c_adapter ddc;
  75
  76         /* Register for the SDVO device: SDVOB or SDVOC */
  77         uint32_t sdvo_reg;
  78
  79         /* Active outputs controlled by this SDVO output */
  80         uint16_t controlled_output;
  81
  82         /*
  83          * Capabilities of the SDVO device returned by
  84          * i830_sdvo_get_capabilities()
  85          */
  86         struct intel_sdvo_caps caps;
  87
  88         /* Pixel clock limitations reported by the SDVO device, in kHz */
  89         int pixel_clock_min, pixel_clock_max;
  90
  91         /*
  92         * For multiple function SDVO device,
  93         * this is for current attached outputs.
  94         */
  95         uint16_t attached_output;
  96
  97         /*
  98          * Hotplug activation bits for this device
  99          */
 100         uint16_t hotplug_active;
 101
 102         /**
 103          * This is used to select the color range of RBG outputs in HDMI mode.
 104          * It is only valid when using TMDS encoding and 8 bit per color mode.
 105          */
 106         uint32_t color_range;
 107
 108         /**
 109          * This is set if we're going to treat the device as TV-out.
 110          *
 111          * While we have these nice friendly flags for output types that ought
 112          * to decide this for us, the S-Video output on our HDMI+S-Video card
 113          * shows up as RGB1 (VGA).
 114          */
 115         bool is_tv;
 116
 117         /* On different gens SDVOB is at different places. */
 118         bool is_sdvob;
 119
 120         /* This is for current tv format name */
 121         int tv_format_index;
 122
 123         /**
 124          * This is set if we treat the device as HDMI, instead of DVI.
 125          */
 126         bool is_hdmi;
 127         bool has_hdmi_monitor;
 128         bool has_hdmi_audio;
 129
 130         /**
 131          * This is set if we detect output of sdvo device as LVDS and
 132          * have a valid fixed mode to use with the panel.
 133          */
 134         bool is_lvds;
 135
 136         /**
 137          * This is sdvo fixed pannel mode pointer
 138          */
 139         struct drm_display_mode *sdvo_lvds_fixed_mode;
 140
 141         /* DDC bus used by this SDVO encoder */
 142         uint8_t ddc_bus;
 143 };
 144
 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 SDVO_NAME(svdo) ((svdo)->is_sdvob ? "SDVOB" : "SDVOC")
 407
 408 static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd,
 409                                    const void *args, int args_len)
 410 {
 411         int i;
 412
 413         DRM_DEBUG_KMS("%s: W: %02X ",
 414                                 SDVO_NAME(intel_sdvo), cmd);
 415         for (i = 0; i < args_len; i++)
 416                 DRM_LOG_KMS("%02X ", ((u8 *)args)[i]);
 417         for (; i < 8; i++)
 418                 DRM_LOG_KMS("   ");
 419         for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) {
 420                 if (cmd == sdvo_cmd_names[i].cmd) {
 421                         DRM_LOG_KMS("(%s)", sdvo_cmd_names[i].name);
 422                         break;
 423                 }
 424         }
 425         if (i == ARRAY_SIZE(sdvo_cmd_names))
 426                 DRM_LOG_KMS("(%02X)", cmd);
 427         DRM_LOG_KMS("\n");
 428 }
 429
 430 static const char *cmd_status_names[] = {
 431         "Power on",
 432         "Success",
 433         "Not supported",
 434         "Invalid arg",
 435         "Pending",
 436         "Target not specified",
 437         "Scaling not supported"
 438 };
 439
 440 static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
 441                                  const void *args, int args_len)
 442 {
 443         u8 *buf, status;
 444         struct i2c_msg *msgs;
 445         int i, ret = true;
 446
 447         /* Would be simpler to allocate both in one go ? */
 448         buf = (u8 *)kzalloc(args_len * 2 + 2, GFP_KERNEL);
 449         if (!buf)
 450                 return false;
 451
 452         msgs = kcalloc(args_len + 3, sizeof(*msgs), GFP_KERNEL);
 453         if (!msgs) {
 454                 kfree(buf);
 455                 return false;
 456         }
 457
 458         intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
 459
 460         for (i = 0; i < args_len; i++) {
 461                 msgs[i].addr = intel_sdvo->slave_addr;
 462                 msgs[i].flags = 0;
 463                 msgs[i].len = 2;
 464                 msgs[i].buf = buf + 2 *i;
 465                 buf[2*i + 0] = SDVO_I2C_ARG_0 - i;
 466                 buf[2*i + 1] = ((u8*)args)[i];
 467         }
 468         msgs[i].addr = intel_sdvo->slave_addr;
 469         msgs[i].flags = 0;
 470         msgs[i].len = 2;
 471         msgs[i].buf = buf + 2*i;
 472         buf[2*i + 0] = SDVO_I2C_OPCODE;
 473         buf[2*i + 1] = cmd;
 474
 475         /* the following two are to read the response */
 476         status = SDVO_I2C_CMD_STATUS;
 477         msgs[i+1].addr = intel_sdvo->slave_addr;
 478         msgs[i+1].flags = 0;
 479         msgs[i+1].len = 1;
 480         msgs[i+1].buf = &status;
 481
 482         msgs[i+2].addr = intel_sdvo->slave_addr;
 483         msgs[i+2].flags = I2C_M_RD;
 484         msgs[i+2].len = 1;
 485         msgs[i+2].buf = &status;
 486
 487         ret = i2c_transfer(intel_sdvo->i2c, msgs, i+3);
 488         if (ret < 0) {
 489                 DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
 490                 ret = false;
 491                 goto out;
 492         }
 493         if (ret != i+3) {
 494                 /* failure in I2C transfer */
 495                 DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3);
 496                 ret = false;
 497         }
 498
 499 out:
 500         kfree(msgs);
 501         kfree(buf);
 502         return ret;
 503 }
 504
 505 static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
 506                                      void *response, int response_len)
 507 {
 508         u8 retry = 5;
 509         u8 status;
 510         int i;
 511
 512         DRM_DEBUG_KMS("%s: R: ", SDVO_NAME(intel_sdvo));
 513
 514         /*
 515          * The documentation states that all commands will be
 516          * processed within 15µs, and that we need only poll
 517          * the status byte a maximum of 3 times in order for the
 518          * command to be complete.
 519          *
 520          * Check 5 times in case the hardware failed to read the docs.
 521          */
 522         if (!intel_sdvo_read_byte(intel_sdvo,
 523                                   SDVO_I2C_CMD_STATUS,
 524                                   &status))
 525                 goto log_fail;
 526
 527         while (status == SDVO_CMD_STATUS_PENDING && retry--) {
 528                 udelay(15);
 529                 if (!intel_sdvo_read_byte(intel_sdvo,
 530                                           SDVO_I2C_CMD_STATUS,
 531                                           &status))
 532                         goto log_fail;
 533         }
 534
 535         if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
 536                 DRM_LOG_KMS("(%s)", cmd_status_names[status]);
 537         else
 538                 DRM_LOG_KMS("(??? %d)", status);
 539
 540         if (status != SDVO_CMD_STATUS_SUCCESS)
 541                 goto log_fail;
 542
 543         /* Read the command response */
 544         for (i = 0; i < response_len; i++) {
 545                 if (!intel_sdvo_read_byte(intel_sdvo,
 546                                           SDVO_I2C_RETURN_0 + i,
 547                                           &((u8 *)response)[i]))
 548                         goto log_fail;
 549                 DRM_LOG_KMS(" %02X", ((u8 *)response)[i]);
 550         }
 551         DRM_LOG_KMS("\n");
 552         return true;
 553
 554 log_fail:
 555         DRM_LOG_KMS("... failed\n");
 556         return false;
 557 }
 558
 559 static int intel_sdvo_get_pixel_multiplier(struct drm_display_mode *mode)
 560 {
 561         if (mode->clock >= 100000)
 562                 return 1;
 563         else if (mode->clock >= 50000)
 564                 return 2;
 565         else
 566                 return 4;
 567 }
 568
 569 static bool intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo,
 570                                               u8 ddc_bus)
 571 {
 572         /* This must be the immediately preceding write before the i2c xfer */
 573         return intel_sdvo_write_cmd(intel_sdvo,
 574                                     SDVO_CMD_SET_CONTROL_BUS_SWITCH,
 575                                     &ddc_bus, 1);
 576 }
 577
 578 static bool intel_sdvo_set_value(struct intel_sdvo *intel_sdvo, u8 cmd, const void *data, int len)
 579 {
 580         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, data, len))
 581                 return false;
 582
 583         return intel_sdvo_read_response(intel_sdvo, NULL, 0);
 584 }
 585
 586 static bool
 587 intel_sdvo_get_value(struct intel_sdvo *intel_sdvo, u8 cmd, void *value, int len)
 588 {
 589         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, NULL, 0))
 590                 return false;
 591
 592         return intel_sdvo_read_response(intel_sdvo, value, len);
 593 }
 594
 595 static bool intel_sdvo_set_target_input(struct intel_sdvo *intel_sdvo)
 596 {
 597         struct intel_sdvo_set_target_input_args targets = {0};
 598         return intel_sdvo_set_value(intel_sdvo,
 599                                     SDVO_CMD_SET_TARGET_INPUT,
 600                                     &targets, sizeof(targets));
 601 }
 602
 603 /**
 604  * Return whether each input is trained.
 605  *
 606  * This function is making an assumption about the layout of the response,
 607  * which should be checked against the docs.
 608  */
 609 static bool intel_sdvo_get_trained_inputs(struct intel_sdvo *intel_sdvo, bool *input_1, bool *input_2)
 610 {
 611         struct intel_sdvo_get_trained_inputs_response response;
 612
 613         BUILD_BUG_ON(sizeof(response) != 1);
 614         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_TRAINED_INPUTS,
 615                                   &response, sizeof(response)))
 616                 return false;
 617
 618         *input_1 = response.input0_trained;
 619         *input_2 = response.input1_trained;
 620         return true;
 621 }
 622
 623 static bool intel_sdvo_set_active_outputs(struct intel_sdvo *intel_sdvo,
 624                                           u16 outputs)
 625 {
 626         return intel_sdvo_set_value(intel_sdvo,
 627                                     SDVO_CMD_SET_ACTIVE_OUTPUTS,
 628                                     &outputs, sizeof(outputs));
 629 }
 630
 631 static bool intel_sdvo_get_active_outputs(struct intel_sdvo *intel_sdvo,
 632                                           u16 *outputs)
 633 {
 634         return intel_sdvo_get_value(intel_sdvo,
 635                                     SDVO_CMD_GET_ACTIVE_OUTPUTS,
 636                                     outputs, sizeof(*outputs));
 637 }
 638
 639 static bool intel_sdvo_set_encoder_power_state(struct intel_sdvo *intel_sdvo,
 640                                                int mode)
 641 {
 642         u8 state = SDVO_ENCODER_STATE_ON;
 643
 644         switch (mode) {
 645         case DRM_MODE_DPMS_ON:
 646                 state = SDVO_ENCODER_STATE_ON;
 647                 break;
 648         case DRM_MODE_DPMS_STANDBY:
 649                 state = SDVO_ENCODER_STATE_STANDBY;
 650                 break;
 651         case DRM_MODE_DPMS_SUSPEND:
 652                 state = SDVO_ENCODER_STATE_SUSPEND;
 653                 break;
 654         case DRM_MODE_DPMS_OFF:
 655                 state = SDVO_ENCODER_STATE_OFF;
 656                 break;
 657         }
 658
 659         return intel_sdvo_set_value(intel_sdvo,
 660                                     SDVO_CMD_SET_ENCODER_POWER_STATE, &state, sizeof(state));
 661 }
 662
 663 static bool intel_sdvo_get_input_pixel_clock_range(struct intel_sdvo *intel_sdvo,
 664                                                    int *clock_min,
 665                                                    int *clock_max)
 666 {
 667         struct intel_sdvo_pixel_clock_range clocks;
 668
 669         BUILD_BUG_ON(sizeof(clocks) != 4);
 670         if (!intel_sdvo_get_value(intel_sdvo,
 671                                   SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
 672                                   &clocks, sizeof(clocks)))
 673                 return false;
 674
 675         /* Convert the values from units of 10 kHz to kHz. */
 676         *clock_min = clocks.min * 10;
 677         *clock_max = clocks.max * 10;
 678         return true;
 679 }
 680
 681 static bool intel_sdvo_set_target_output(struct intel_sdvo *intel_sdvo,
 682                                          u16 outputs)
 683 {
 684         return intel_sdvo_set_value(intel_sdvo,
 685                                     SDVO_CMD_SET_TARGET_OUTPUT,
 686                                     &outputs, sizeof(outputs));
 687 }
 688
 689 static bool intel_sdvo_set_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 690                                   struct intel_sdvo_dtd *dtd)
 691 {
 692         return intel_sdvo_set_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 693                 intel_sdvo_set_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 694 }
 695
 696 static bool intel_sdvo_set_input_timing(struct intel_sdvo *intel_sdvo,
 697                                          struct intel_sdvo_dtd *dtd)
 698 {
 699         return intel_sdvo_set_timing(intel_sdvo,
 700                                      SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd);
 701 }
 702
 703 static bool intel_sdvo_set_output_timing(struct intel_sdvo *intel_sdvo,
 704                                          struct intel_sdvo_dtd *dtd)
 705 {
 706         return intel_sdvo_set_timing(intel_sdvo,
 707                                      SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd);
 708 }
 709
 710 static bool
 711 intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 712                                          uint16_t clock,
 713                                          uint16_t width,
 714                                          uint16_t height)
 715 {
 716         struct intel_sdvo_preferred_input_timing_args args;
 717
 718         memset(&args, 0, sizeof(args));
 719         args.clock = clock;
 720         args.width = width;
 721         args.height = height;
 722         args.interlace = 0;
 723
 724         if (intel_sdvo->is_lvds &&
 725            (intel_sdvo->sdvo_lvds_fixed_mode->hdisplay != width ||
 726             intel_sdvo->sdvo_lvds_fixed_mode->vdisplay != height))
 727                 args.scaled = 1;
 728
 729         return intel_sdvo_set_value(intel_sdvo,
 730                                     SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
 731                                     &args, sizeof(args));
 732 }
 733
 734 static bool intel_sdvo_get_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 735                                                   struct intel_sdvo_dtd *dtd)
 736 {
 737         BUILD_BUG_ON(sizeof(dtd->part1) != 8);
 738         BUILD_BUG_ON(sizeof(dtd->part2) != 8);
 739         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
 740                                     &dtd->part1, sizeof(dtd->part1)) &&
 741                 intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
 742                                      &dtd->part2, sizeof(dtd->part2));
 743 }
 744
 745 static bool intel_sdvo_set_clock_rate_mult(struct intel_sdvo *intel_sdvo, u8 val)
 746 {
 747         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
 748 }
 749
 750 static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
 751                                          const struct drm_display_mode *mode)
 752 {
 753         uint16_t width, height;
 754         uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len;
 755         uint16_t h_sync_offset, v_sync_offset;
 756         int mode_clock;
 757
 758         width = mode->hdisplay;
 759         height = mode->vdisplay;
 760
 761         /* do some mode translations */
 762         h_blank_len = mode->htotal - mode->hdisplay;
 763         h_sync_len = mode->hsync_end - mode->hsync_start;
 764
 765         v_blank_len = mode->vtotal - mode->vdisplay;
 766         v_sync_len = mode->vsync_end - mode->vsync_start;
 767
 768         h_sync_offset = mode->hsync_start - mode->hdisplay;
 769         v_sync_offset = mode->vsync_start - mode->vdisplay;
 770
 771         mode_clock = mode->clock;
 772         mode_clock /= intel_mode_get_pixel_multiplier(mode) ?: 1;
 773         mode_clock /= 10;
 774         dtd->part1.clock = mode_clock;
 775
 776         dtd->part1.h_active = width & 0xff;
 777         dtd->part1.h_blank = h_blank_len & 0xff;
 778         dtd->part1.h_high = (((width >> 8) & 0xf) << 4) |
 779                 ((h_blank_len >> 8) & 0xf);
 780         dtd->part1.v_active = height & 0xff;
 781         dtd->part1.v_blank = v_blank_len & 0xff;
 782         dtd->part1.v_high = (((height >> 8) & 0xf) << 4) |
 783                 ((v_blank_len >> 8) & 0xf);
 784
 785         dtd->part2.h_sync_off = h_sync_offset & 0xff;
 786         dtd->part2.h_sync_width = h_sync_len & 0xff;
 787         dtd->part2.v_sync_off_width = (v_sync_offset & 0xf) << 4 |
 788                 (v_sync_len & 0xf);
 789         dtd->part2.sync_off_width_high = ((h_sync_offset & 0x300) >> 2) |
 790                 ((h_sync_len & 0x300) >> 4) | ((v_sync_offset & 0x30) >> 2) |
 791                 ((v_sync_len & 0x30) >> 4);
 792
 793         dtd->part2.dtd_flags = 0x18;
 794         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 795                 dtd->part2.dtd_flags |= DTD_FLAG_INTERLACE;
 796         if (mode->flags & DRM_MODE_FLAG_PHSYNC)
 797                 dtd->part2.dtd_flags |= DTD_FLAG_HSYNC_POSITIVE;
 798         if (mode->flags & DRM_MODE_FLAG_PVSYNC)
 799                 dtd->part2.dtd_flags |= DTD_FLAG_VSYNC_POSITIVE;
 800
 801         dtd->part2.sdvo_flags = 0;
 802         dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
 803         dtd->part2.reserved = 0;
 804 }
 805
 806 static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode,
 807                                          const struct intel_sdvo_dtd *dtd)
 808 {
 809         mode->hdisplay = dtd->part1.h_active;
 810         mode->hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
 811         mode->hsync_start = mode->hdisplay + dtd->part2.h_sync_off;
 812         mode->hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
 813         mode->hsync_end = mode->hsync_start + dtd->part2.h_sync_width;
 814         mode->hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
 815         mode->htotal = mode->hdisplay + dtd->part1.h_blank;
 816         mode->htotal += (dtd->part1.h_high & 0xf) << 8;
 817
 818         mode->vdisplay = dtd->part1.v_active;
 819         mode->vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
 820         mode->vsync_start = mode->vdisplay;
 821         mode->vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
 822         mode->vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
 823         mode->vsync_start += dtd->part2.v_sync_off_high & 0xc0;
 824         mode->vsync_end = mode->vsync_start +
 825                 (dtd->part2.v_sync_off_width & 0xf);
 826         mode->vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
 827         mode->vtotal = mode->vdisplay + dtd->part1.v_blank;
 828         mode->vtotal += (dtd->part1.v_high & 0xf) << 8;
 829
 830         mode->clock = dtd->part1.clock * 10;
 831
 832         mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
 833         if (dtd->part2.dtd_flags & DTD_FLAG_INTERLACE)
 834                 mode->flags |= DRM_MODE_FLAG_INTERLACE;
 835         if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
 836                 mode->flags |= DRM_MODE_FLAG_PHSYNC;
 837         if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
 838                 mode->flags |= DRM_MODE_FLAG_PVSYNC;
 839 }
 840
 841 static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo)
 842 {
 843         struct intel_sdvo_encode encode;
 844
 845         BUILD_BUG_ON(sizeof(encode) != 2);
 846         return intel_sdvo_get_value(intel_sdvo,
 847                                   SDVO_CMD_GET_SUPP_ENCODE,
 848                                   &encode, sizeof(encode));
 849 }
 850
 851 static bool intel_sdvo_set_encode(struct intel_sdvo *intel_sdvo,
 852                                   uint8_t mode)
 853 {
 854         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_ENCODE, &mode, 1);
 855 }
 856
 857 static bool intel_sdvo_set_colorimetry(struct intel_sdvo *intel_sdvo,
 858                                        uint8_t mode)
 859 {
 860         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
 861 }
 862
 863 #if 0
 864 static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
 865 {
 866         int i, j;
 867         uint8_t set_buf_index[2];
 868         uint8_t av_split;
 869         uint8_t buf_size;
 870         uint8_t buf[48];
 871         uint8_t *pos;
 872
 873         intel_sdvo_get_value(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, &av_split, 1);
 874
 875         for (i = 0; i <= av_split; i++) {
 876                 set_buf_index[0] = i; set_buf_index[1] = 0;
 877                 intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX,
 878                                      set_buf_index, 2);
 879                 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
 880                 intel_sdvo_read_response(encoder, &buf_size, 1);
 881
 882                 pos = buf;
 883                 for (j = 0; j <= buf_size; j += 8) {
 884                         intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA,
 885                                              NULL, 0);
 886                         intel_sdvo_read_response(encoder, pos, 8);
 887                         pos += 8;
 888                 }
 889         }
 890 }
 891 #endif
 892
 893 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
 894 {
 895         struct dip_infoframe avi_if = {
 896                 .type = DIP_TYPE_AVI,
 897                 .ver = DIP_VERSION_AVI,
 898                 .len = DIP_LEN_AVI,
 899         };
 900         uint8_t tx_rate = SDVO_HBUF_TX_VSYNC;
 901         uint8_t set_buf_index[2] = { 1, 0 };
 902         uint8_t sdvo_data[4 + sizeof(avi_if.body.avi)];
 903         uint64_t *data = (uint64_t *)sdvo_data;
 904         unsigned i;
 905
 906         intel_dip_infoframe_csum(&avi_if);
 907
 908         /* sdvo spec says that the ecc is handled by the hw, and it looks like
 909          * we must not send the ecc field, either. */
 910         memcpy(sdvo_data, &avi_if, 3);
 911         sdvo_data[3] = avi_if.checksum;
 912         memcpy(&sdvo_data[4], &avi_if.body, sizeof(avi_if.body.avi));
 913
 914         if (!intel_sdvo_set_value(intel_sdvo,
 915                                   SDVO_CMD_SET_HBUF_INDEX,
 916                                   set_buf_index, 2))
 917                 return false;
 918
 919         for (i = 0; i < sizeof(sdvo_data); i += 8) {
 920                 if (!intel_sdvo_set_value(intel_sdvo,
 921                                           SDVO_CMD_SET_HBUF_DATA,
 922                                           data, 8))
 923                         return false;
 924                 data++;
 925         }
 926
 927         return intel_sdvo_set_value(intel_sdvo,
 928                                     SDVO_CMD_SET_HBUF_TXRATE,
 929                                     &tx_rate, 1);
 930 }
 931
 932 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
 933 {
 934         struct intel_sdvo_tv_format format;
 935         uint32_t format_map;
 936
 937         format_map = 1 << intel_sdvo->tv_format_index;
 938         memset(&format, 0, sizeof(format));
 939         memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map)));
 940
 941         BUILD_BUG_ON(sizeof(format) != 6);
 942         return intel_sdvo_set_value(intel_sdvo,
 943                                     SDVO_CMD_SET_TV_FORMAT,
 944                                     &format, sizeof(format));
 945 }
 946
 947 static bool
 948 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
 949                                         const struct drm_display_mode *mode)
 950 {
 951         struct intel_sdvo_dtd output_dtd;
 952
 953         if (!intel_sdvo_set_target_output(intel_sdvo,
 954                                           intel_sdvo->attached_output))
 955                 return false;
 956
 957         intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
 958         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
 959                 return false;
 960
 961         return true;
 962 }
 963
 964 /* Asks the sdvo controller for the preferred input mode given the output mode.
 965  * Unfortunately we have to set up the full output mode to do that. */
 966 static bool
 967 intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
 968                                     const struct drm_display_mode *mode,
 969                                     struct drm_display_mode *adjusted_mode)
 970 {
 971         struct intel_sdvo_dtd input_dtd;
 972
 973         /* Reset the input timing to the screen. Assume always input 0. */
 974         if (!intel_sdvo_set_target_input(intel_sdvo))
 975                 return false;
 976
 977         if (!intel_sdvo_create_preferred_input_timing(intel_sdvo,
 978                                                       mode->clock / 10,
 979                                                       mode->hdisplay,
 980                                                       mode->vdisplay))
 981                 return false;
 982
 983         if (!intel_sdvo_get_preferred_input_timing(intel_sdvo,
 984                                                    &input_dtd))
 985                 return false;
 986
 987         intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd);
 988
 989         return true;
 990 }
 991
 992 static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
 993                                   const struct drm_display_mode *mode,
 994                                   struct drm_display_mode *adjusted_mode)
 995 {
 996         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
 997         int multiplier;
 998
 999         /* We need to construct preferred input timings based on our
1000          * output timings.  To do that, we have to set the output
1001          * timings, even though this isn't really the right place in
1002          * the sequence to do it. Oh well.
1003          */
1004         if (intel_sdvo->is_tv) {
1005                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
1006                         return false;
1007
1008                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1009                                                            mode,
1010                                                            adjusted_mode);
1011         } else if (intel_sdvo->is_lvds) {
1012                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
1013                                                              intel_sdvo->sdvo_lvds_fixed_mode))
1014                         return false;
1015
1016                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1017                                                            mode,
1018                                                            adjusted_mode);
1019         }
1020
1021         /* Make the CRTC code factor in the SDVO pixel multiplier.  The
1022          * SDVO device will factor out the multiplier during mode_set.
1023          */
1024         multiplier = intel_sdvo_get_pixel_multiplier(adjusted_mode);
1025         intel_mode_set_pixel_multiplier(adjusted_mode, multiplier);
1026
1027         return true;
1028 }
1029
1030 static void intel_sdvo_mode_set(struct drm_encoder *encoder,
1031                                 struct drm_display_mode *mode,
1032                                 struct drm_display_mode *adjusted_mode)
1033 {
1034         struct drm_device *dev = encoder->dev;
1035         struct drm_i915_private *dev_priv = dev->dev_private;
1036         struct drm_crtc *crtc = encoder->crtc;
1037         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1038         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
1039         u32 sdvox;
1040         struct intel_sdvo_in_out_map in_out;
1041         struct intel_sdvo_dtd input_dtd, output_dtd;
1042         int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
1043         int rate;
1044
1045         if (!mode)
1046                 return;
1047
1048         /* First, set the input mapping for the first input to our controlled
1049          * output. This is only correct if we're a single-input device, in
1050          * which case the first input is the output from the appropriate SDVO
1051          * channel on the motherboard.  In a two-input device, the first input
1052          * will be SDVOB and the second SDVOC.
1053          */
1054         in_out.in0 = intel_sdvo->attached_output;
1055         in_out.in1 = 0;
1056
1057         intel_sdvo_set_value(intel_sdvo,
1058                              SDVO_CMD_SET_IN_OUT_MAP,
1059                              &in_out, sizeof(in_out));
1060
1061         /* Set the output timings to the screen */
1062         if (!intel_sdvo_set_target_output(intel_sdvo,
1063                                           intel_sdvo->attached_output))
1064                 return;
1065
1066         /* lvds has a special fixed output timing. */
1067         if (intel_sdvo->is_lvds)
1068                 intel_sdvo_get_dtd_from_mode(&output_dtd,
1069                                              intel_sdvo->sdvo_lvds_fixed_mode);
1070         else
1071                 intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1072         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1073                 DRM_INFO("Setting output timings on %s failed\n",
1074                          SDVO_NAME(intel_sdvo));
1075
1076         /* Set the input timing to the screen. Assume always input 0. */
1077         if (!intel_sdvo_set_target_input(intel_sdvo))
1078                 return;
1079
1080         if (intel_sdvo->has_hdmi_monitor) {
1081                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI);
1082                 intel_sdvo_set_colorimetry(intel_sdvo,
1083                                            SDVO_COLORIMETRY_RGB256);
1084                 intel_sdvo_set_avi_infoframe(intel_sdvo);
1085         } else
1086                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);
1087
1088         if (intel_sdvo->is_tv &&
1089             !intel_sdvo_set_tv_format(intel_sdvo))
1090                 return;
1091
1092         /* We have tried to get input timing in mode_fixup, and filled into
1093          * adjusted_mode.
1094          */
1095         intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
1096         if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd))
1097                 DRM_INFO("Setting input timings on %s failed\n",
1098                          SDVO_NAME(intel_sdvo));
1099
1100         switch (pixel_multiplier) {
1101         default:
1102         case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break;
1103         case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break;
1104         case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break;
1105         }
1106         if (!intel_sdvo_set_clock_rate_mult(intel_sdvo, rate))
1107                 return;
1108
1109         /* Set the SDVO control regs. */
1110         if (INTEL_INFO(dev)->gen >= 4) {
1111                 /* The real mode polarity is set by the SDVO commands, using
1112                  * struct intel_sdvo_dtd. */
1113                 sdvox = SDVO_VSYNC_ACTIVE_HIGH | SDVO_HSYNC_ACTIVE_HIGH;
1114                 if (intel_sdvo->is_hdmi)
1115                         sdvox |= intel_sdvo->color_range;
1116                 if (INTEL_INFO(dev)->gen < 5)
1117                         sdvox |= SDVO_BORDER_ENABLE;
1118         } else {
1119                 sdvox = I915_READ(intel_sdvo->sdvo_reg);
1120                 switch (intel_sdvo->sdvo_reg) {
1121                 case SDVOB:
1122                         sdvox &= SDVOB_PRESERVE_MASK;
1123                         break;
1124                 case SDVOC:
1125                         sdvox &= SDVOC_PRESERVE_MASK;
1126                         break;
1127                 }
1128                 sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
1129         }
1130
1131         if (INTEL_PCH_TYPE(dev) >= PCH_CPT)
1132                 sdvox |= TRANSCODER_CPT(intel_crtc->pipe);
1133         else
1134                 sdvox |= TRANSCODER(intel_crtc->pipe);
1135
1136         if (intel_sdvo->has_hdmi_audio)
1137                 sdvox |= SDVO_AUDIO_ENABLE;
1138
1139         if (INTEL_INFO(dev)->gen >= 4) {
1140                 /* done in crtc_mode_set as the dpll_md reg must be written early */
1141         } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
1142                 /* done in crtc_mode_set as it lives inside the dpll register */
1143         } else {
1144                 sdvox |= (pixel_multiplier - 1) << SDVO_PORT_MULTIPLY_SHIFT;
1145         }
1146
1147         if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL &&
1148             INTEL_INFO(dev)->gen < 5)
1149                 sdvox |= SDVO_STALL_SELECT;
1150         intel_sdvo_write_sdvox(intel_sdvo, sdvox);
1151 }
1152
1153 static bool intel_sdvo_connector_get_hw_state(struct intel_connector *connector)
1154 {
1155         struct intel_sdvo_connector *intel_sdvo_connector =
1156                 to_intel_sdvo_connector(&connector->base);
1157         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(&connector->base);
1158         u16 active_outputs;
1159
1160         intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
1161
1162         if (active_outputs & intel_sdvo_connector->output_flag)
1163                 return true;
1164         else
1165                 return false;
1166 }
1167
1168 static bool intel_sdvo_get_hw_state(struct intel_encoder *encoder,
1169                                     enum pipe *pipe)
1170 {
1171         struct drm_device *dev = encoder->base.dev;
1172         struct drm_i915_private *dev_priv = dev->dev_private;
1173         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1174         u32 tmp;
1175
1176         tmp = I915_READ(intel_sdvo->sdvo_reg);
1177
1178         if (!(tmp & SDVO_ENABLE))
1179                 return false;
1180
1181         if (HAS_PCH_CPT(dev))
1182                 *pipe = PORT_TO_PIPE_CPT(tmp);
1183         else
1184                 *pipe = PORT_TO_PIPE(tmp);
1185
1186         return true;
1187 }
1188
1189 static void intel_disable_sdvo(struct intel_encoder *encoder)
1190 {
1191         struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
1192         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1193         u32 temp;
1194
1195         intel_sdvo_set_active_outputs(intel_sdvo, 0);
1196         if (0)
1197                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1198                                                    DRM_MODE_DPMS_OFF);
1199
1200         temp = I915_READ(intel_sdvo->sdvo_reg);
1201         if ((temp & SDVO_ENABLE) != 0) {
1202                 intel_sdvo_write_sdvox(intel_sdvo, temp & ~SDVO_ENABLE);
1203         }
1204 }
1205
1206 static void intel_enable_sdvo(struct intel_encoder *encoder)
1207 {
1208         struct drm_device *dev = encoder->base.dev;
1209         struct drm_i915_private *dev_priv = dev->dev_private;
1210         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1211         struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
1212         u32 temp;
1213         bool input1, input2;
1214         int i;
1215         u8 status;
1216
1217         temp = I915_READ(intel_sdvo->sdvo_reg);
1218         if ((temp & SDVO_ENABLE) == 0)
1219                 intel_sdvo_write_sdvox(intel_sdvo, temp | SDVO_ENABLE);
1220         for (i = 0; i < 2; i++)
1221                 intel_wait_for_vblank(dev, intel_crtc->pipe);
1222
1223         status = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2);
1224         /* Warn if the device reported failure to sync.
1225          * A lot of SDVO devices fail to notify of sync, but it's
1226          * a given it the status is a success, we succeeded.
1227          */
1228         if (status == SDVO_CMD_STATUS_SUCCESS && !input1) {
1229                 DRM_DEBUG_KMS("First %s output reported failure to "
1230                                 "sync\n", SDVO_NAME(intel_sdvo));
1231         }
1232
1233         if (0)
1234                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1235                                                    DRM_MODE_DPMS_ON);
1236         intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1237 }
1238
1239 static void intel_sdvo_dpms(struct drm_connector *connector, int mode)
1240 {
1241         struct drm_crtc *crtc;
1242         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1243
1244         /* dvo supports only 2 dpms states. */
1245         if (mode != DRM_MODE_DPMS_ON)
1246                 mode = DRM_MODE_DPMS_OFF;
1247
1248         if (mode == connector->dpms)
1249                 return;
1250
1251         connector->dpms = mode;
1252
1253         /* Only need to change hw state when actually enabled */
1254         crtc = intel_sdvo->base.base.crtc;
1255         if (!crtc) {
1256                 intel_sdvo->base.connectors_active = false;
1257                 return;
1258         }
1259
1260         if (mode != DRM_MODE_DPMS_ON) {
1261                 intel_sdvo_set_active_outputs(intel_sdvo, 0);
1262                 if (0)
1263                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1264
1265                 intel_sdvo->base.connectors_active = false;
1266
1267                 intel_crtc_update_dpms(crtc);
1268         } else {
1269                 intel_sdvo->base.connectors_active = true;
1270
1271                 intel_crtc_update_dpms(crtc);
1272
1273                 if (0)
1274                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1275                 intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1276         }
1277
1278         intel_modeset_check_state(connector->dev);
1279 }
1280
1281 static int intel_sdvo_mode_valid(struct drm_connector *connector,
1282                                  struct drm_display_mode *mode)
1283 {
1284         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1285
1286         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
1287                 return MODE_NO_DBLESCAN;
1288
1289         if (intel_sdvo->pixel_clock_min > mode->clock)
1290                 return MODE_CLOCK_LOW;
1291
1292         if (intel_sdvo->pixel_clock_max < mode->clock)
1293                 return MODE_CLOCK_HIGH;
1294
1295         if (intel_sdvo->is_lvds) {
1296                 if (mode->hdisplay > intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
1297                         return MODE_PANEL;
1298
1299                 if (mode->vdisplay > intel_sdvo->sdvo_lvds_fixed_mode->vdisplay)
1300                         return MODE_PANEL;
1301         }
1302
1303         return MODE_OK;
1304 }
1305
1306 static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct intel_sdvo_caps *caps)
1307 {
1308         BUILD_BUG_ON(sizeof(*caps) != 8);
1309         if (!intel_sdvo_get_value(intel_sdvo,
1310                                   SDVO_CMD_GET_DEVICE_CAPS,
1311                                   caps, sizeof(*caps)))
1312                 return false;
1313
1314         DRM_DEBUG_KMS("SDVO capabilities:\n"
1315                       "  vendor_id: %d\n"
1316                       "  device_id: %d\n"
1317                       "  device_rev_id: %d\n"
1318                       "  sdvo_version_major: %d\n"
1319                       "  sdvo_version_minor: %d\n"
1320                       "  sdvo_inputs_mask: %d\n"
1321                       "  smooth_scaling: %d\n"
1322                       "  sharp_scaling: %d\n"
1323                       "  up_scaling: %d\n"
1324                       "  down_scaling: %d\n"
1325                       "  stall_support: %d\n"
1326                       "  output_flags: %d\n",
1327                       caps->vendor_id,
1328                       caps->device_id,
1329                       caps->device_rev_id,
1330                       caps->sdvo_version_major,
1331                       caps->sdvo_version_minor,
1332                       caps->sdvo_inputs_mask,
1333                       caps->smooth_scaling,
1334                       caps->sharp_scaling,
1335                       caps->up_scaling,
1336                       caps->down_scaling,
1337                       caps->stall_support,
1338                       caps->output_flags);
1339
1340         return true;
1341 }
1342
1343 static uint16_t intel_sdvo_get_hotplug_support(struct intel_sdvo *intel_sdvo)
1344 {
1345         struct drm_device *dev = intel_sdvo->base.base.dev;
1346         uint16_t hotplug;
1347
1348         /* HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise
1349          * on the line. */
1350         if (IS_I945G(dev) || IS_I945GM(dev))
1351                 return 0;
1352
1353         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
1354                                         &hotplug, sizeof(hotplug)))
1355                 return 0;
1356
1357         return hotplug;
1358 }
1359
1360 static void intel_sdvo_enable_hotplug(struct intel_encoder *encoder)
1361 {
1362         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1363
1364         intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG,
1365                         &intel_sdvo->hotplug_active, 2);
1366 }
1367
1368 static bool
1369 intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
1370 {
1371         /* Is there more than one type of output? */
1372         return hweight16(intel_sdvo->caps.output_flags) > 1;
1373 }
1374
1375 static struct edid *
1376 intel_sdvo_get_edid(struct drm_connector *connector)
1377 {
1378         struct intel_sdvo *sdvo = intel_attached_sdvo(connector);
1379         return drm_get_edid(connector, &sdvo->ddc);
1380 }
1381
1382 /* Mac mini hack -- use the same DDC as the analog connector */
1383 static struct edid *
1384 intel_sdvo_get_analog_edid(struct drm_connector *connector)
1385 {
1386         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1387
1388         return drm_get_edid(connector,
1389                             intel_gmbus_get_adapter(dev_priv,
1390                                                     dev_priv->crt_ddc_pin));
1391 }
1392
1393 static enum drm_connector_status
1394 intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
1395 {
1396         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1397         enum drm_connector_status status;
1398         struct edid *edid;
1399
1400         edid = intel_sdvo_get_edid(connector);
1401
1402         if (edid == NULL && intel_sdvo_multifunc_encoder(intel_sdvo)) {
1403                 u8 ddc, saved_ddc = intel_sdvo->ddc_bus;
1404
1405                 /*
1406                  * Don't use the 1 as the argument of DDC bus switch to get
1407                  * the EDID. It is used for SDVO SPD ROM.
1408                  */
1409                 for (ddc = intel_sdvo->ddc_bus >> 1; ddc > 1; ddc >>= 1) {
1410                         intel_sdvo->ddc_bus = ddc;
1411                         edid = intel_sdvo_get_edid(connector);
1412                         if (edid)
1413                                 break;
1414                 }
1415                 /*
1416                  * If we found the EDID on the other bus,
1417                  * assume that is the correct DDC bus.
1418                  */
1419                 if (edid == NULL)
1420                         intel_sdvo->ddc_bus = saved_ddc;
1421         }
1422
1423         /*
1424          * When there is no edid and no monitor is connected with VGA
1425          * port, try to use the CRT ddc to read the EDID for DVI-connector.
1426          */
1427         if (edid == NULL)
1428                 edid = intel_sdvo_get_analog_edid(connector);
1429
1430         status = connector_status_unknown;
1431         if (edid != NULL) {
1432                 /* DDC bus is shared, match EDID to connector type */
1433                 if (edid->input & DRM_EDID_INPUT_DIGITAL) {
1434                         status = connector_status_connected;
1435                         if (intel_sdvo->is_hdmi) {
1436                                 intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
1437                                 intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
1438                         }
1439                 } else
1440                         status = connector_status_disconnected;
1441                 kfree(edid);
1442         }
1443
1444         if (status == connector_status_connected) {
1445                 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1446                 if (intel_sdvo_connector->force_audio != HDMI_AUDIO_AUTO)
1447                         intel_sdvo->has_hdmi_audio = (intel_sdvo_connector->force_audio == HDMI_AUDIO_ON);
1448         }
1449
1450         return status;
1451 }
1452
1453 static bool
1454 intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
1455                                   struct edid *edid)
1456 {
1457         bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
1458         bool connector_is_digital = !!IS_DIGITAL(sdvo);
1459
1460         DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n",
1461                       connector_is_digital, monitor_is_digital);
1462         return connector_is_digital == monitor_is_digital;
1463 }
1464
1465 static enum drm_connector_status
1466 intel_sdvo_detect(struct drm_connector *connector, bool force)
1467 {
1468         uint16_t response;
1469         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1470         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1471         enum drm_connector_status ret;
1472
1473         if (!intel_sdvo_write_cmd(intel_sdvo,
1474                                   SDVO_CMD_GET_ATTACHED_DISPLAYS, NULL, 0))
1475                 return connector_status_unknown;
1476
1477         /* add 30ms delay when the output type might be TV */
1478         if (intel_sdvo->caps.output_flags & SDVO_TV_MASK)
1479                 msleep(30);
1480
1481         if (!intel_sdvo_read_response(intel_sdvo, &response, 2))
1482                 return connector_status_unknown;
1483
1484         DRM_DEBUG_KMS("SDVO response %d %d [%x]\n",
1485                       response & 0xff, response >> 8,
1486                       intel_sdvo_connector->output_flag);
1487
1488         if (response == 0)
1489                 return connector_status_disconnected;
1490
1491         intel_sdvo->attached_output = response;
1492
1493         intel_sdvo->has_hdmi_monitor = false;
1494         intel_sdvo->has_hdmi_audio = false;
1495
1496         if ((intel_sdvo_connector->output_flag & response) == 0)
1497                 ret = connector_status_disconnected;
1498         else if (IS_TMDS(intel_sdvo_connector))
1499                 ret = intel_sdvo_tmds_sink_detect(connector);
1500         else {
1501                 struct edid *edid;
1502
1503                 /* if we have an edid check it matches the connection */
1504                 edid = intel_sdvo_get_edid(connector);
1505                 if (edid == NULL)
1506                         edid = intel_sdvo_get_analog_edid(connector);
1507                 if (edid != NULL) {
1508                         if (intel_sdvo_connector_matches_edid(intel_sdvo_connector,
1509                                                               edid))
1510                                 ret = connector_status_connected;
1511                         else
1512                                 ret = connector_status_disconnected;
1513
1514                         kfree(edid);
1515                 } else
1516                         ret = connector_status_connected;
1517         }
1518
1519         /* May update encoder flag for like clock for SDVO TV, etc.*/
1520         if (ret == connector_status_connected) {
1521                 intel_sdvo->is_tv = false;
1522                 intel_sdvo->is_lvds = false;
1523                 intel_sdvo->base.needs_tv_clock = false;
1524
1525                 if (response & SDVO_TV_MASK) {
1526                         intel_sdvo->is_tv = true;
1527                         intel_sdvo->base.needs_tv_clock = true;
1528                 }
1529                 if (response & SDVO_LVDS_MASK)
1530                         intel_sdvo->is_lvds = intel_sdvo->sdvo_lvds_fixed_mode != NULL;
1531         }
1532
1533         return ret;
1534 }
1535
1536 static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
1537 {
1538         struct edid *edid;
1539
1540         /* set the bus switch and get the modes */
1541         edid = intel_sdvo_get_edid(connector);
1542
1543         /*
1544          * Mac mini hack.  On this device, the DVI-I connector shares one DDC
1545          * link between analog and digital outputs. So, if the regular SDVO
1546          * DDC fails, check to see if the analog output is disconnected, in
1547          * which case we'll look there for the digital DDC data.
1548          */
1549         if (edid == NULL)
1550                 edid = intel_sdvo_get_analog_edid(connector);
1551
1552         if (edid != NULL) {
1553                 if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector),
1554                                                       edid)) {
1555                         drm_mode_connector_update_edid_property(connector, edid);
1556                         drm_add_edid_modes(connector, edid);
1557                 }
1558
1559                 kfree(edid);
1560         }
1561 }
1562
1563 /*
1564  * Set of SDVO TV modes.
1565  * Note!  This is in reply order (see loop in get_tv_modes).
1566  * XXX: all 60Hz refresh?
1567  */
1568 static const struct drm_display_mode sdvo_tv_modes[] = {
1569         { DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 5815, 320, 321, 384,
1570                    416, 0, 200, 201, 232, 233, 0,
1571                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1572         { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 6814, 320, 321, 384,
1573                    416, 0, 240, 241, 272, 273, 0,
1574                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1575         { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 9910, 400, 401, 464,
1576                    496, 0, 300, 301, 332, 333, 0,
1577                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1578         { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 16913, 640, 641, 704,
1579                    736, 0, 350, 351, 382, 383, 0,
1580                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1581         { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 19121, 640, 641, 704,
1582                    736, 0, 400, 401, 432, 433, 0,
1583                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1584         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 22654, 640, 641, 704,
1585                    736, 0, 480, 481, 512, 513, 0,
1586                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1587         { DRM_MODE("704x480", DRM_MODE_TYPE_DRIVER, 24624, 704, 705, 768,
1588                    800, 0, 480, 481, 512, 513, 0,
1589                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1590         { DRM_MODE("704x576", DRM_MODE_TYPE_DRIVER, 29232, 704, 705, 768,
1591                    800, 0, 576, 577, 608, 609, 0,
1592                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1593         { DRM_MODE("720x350", DRM_MODE_TYPE_DRIVER, 18751, 720, 721, 784,
1594                    816, 0, 350, 351, 382, 383, 0,
1595                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1596         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 21199, 720, 721, 784,
1597                    816, 0, 400, 401, 432, 433, 0,
1598                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1599         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 25116, 720, 721, 784,
1600                    816, 0, 480, 481, 512, 513, 0,
1601                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1602         { DRM_MODE("720x540", DRM_MODE_TYPE_DRIVER, 28054, 720, 721, 784,
1603                    816, 0, 540, 541, 572, 573, 0,
1604                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1605         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 29816, 720, 721, 784,
1606                    816, 0, 576, 577, 608, 609, 0,
1607                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1608         { DRM_MODE("768x576", DRM_MODE_TYPE_DRIVER, 31570, 768, 769, 832,
1609                    864, 0, 576, 577, 608, 609, 0,
1610                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1611         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 34030, 800, 801, 864,
1612                    896, 0, 600, 601, 632, 633, 0,
1613                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1614         { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 36581, 832, 833, 896,
1615                    928, 0, 624, 625, 656, 657, 0,
1616                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1617         { DRM_MODE("920x766", DRM_MODE_TYPE_DRIVER, 48707, 920, 921, 984,
1618                    1016, 0, 766, 767, 798, 799, 0,
1619                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1620         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 53827, 1024, 1025, 1088,
1621                    1120, 0, 768, 769, 800, 801, 0,
1622                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1623         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 87265, 1280, 1281, 1344,
1624                    1376, 0, 1024, 1025, 1056, 1057, 0,
1625                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1626 };
1627
1628 static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
1629 {
1630         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1631         struct intel_sdvo_sdtv_resolution_request tv_res;
1632         uint32_t reply = 0, format_map = 0;
1633         int i;
1634
1635         /* Read the list of supported input resolutions for the selected TV
1636          * format.
1637          */
1638         format_map = 1 << intel_sdvo->tv_format_index;
1639         memcpy(&tv_res, &format_map,
1640                min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request)));
1641
1642         if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo->attached_output))
1643                 return;
1644
1645         BUILD_BUG_ON(sizeof(tv_res) != 3);
1646         if (!intel_sdvo_write_cmd(intel_sdvo,
1647                                   SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT,
1648                                   &tv_res, sizeof(tv_res)))
1649                 return;
1650         if (!intel_sdvo_read_response(intel_sdvo, &reply, 3))
1651                 return;
1652
1653         for (i = 0; i < ARRAY_SIZE(sdvo_tv_modes); i++)
1654                 if (reply & (1 << i)) {
1655                         struct drm_display_mode *nmode;
1656                         nmode = drm_mode_duplicate(connector->dev,
1657                                                    &sdvo_tv_modes[i]);
1658                         if (nmode)
1659                                 drm_mode_probed_add(connector, nmode);
1660                 }
1661 }
1662
1663 static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
1664 {
1665         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1666         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1667         struct drm_display_mode *newmode;
1668
1669         /*
1670          * Attempt to get the mode list from DDC.
1671          * Assume that the preferred modes are
1672          * arranged in priority order.
1673          */
1674         intel_ddc_get_modes(connector, intel_sdvo->i2c);
1675         if (list_empty(&connector->probed_modes) == false)
1676                 goto end;
1677
1678         /* Fetch modes from VBT */
1679         if (dev_priv->sdvo_lvds_vbt_mode != NULL) {
1680                 newmode = drm_mode_duplicate(connector->dev,
1681                                              dev_priv->sdvo_lvds_vbt_mode);
1682                 if (newmode != NULL) {
1683                         /* Guarantee the mode is preferred */
1684                         newmode->type = (DRM_MODE_TYPE_PREFERRED |
1685                                          DRM_MODE_TYPE_DRIVER);
1686                         drm_mode_probed_add(connector, newmode);
1687                 }
1688         }
1689
1690 end:
1691         list_for_each_entry(newmode, &connector->probed_modes, head) {
1692                 if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
1693                         intel_sdvo->sdvo_lvds_fixed_mode =
1694                                 drm_mode_duplicate(connector->dev, newmode);
1695
1696                         intel_sdvo->is_lvds = true;
1697                         break;
1698                 }
1699         }
1700
1701 }
1702
1703 static int intel_sdvo_get_modes(struct drm_connector *connector)
1704 {
1705         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1706
1707         if (IS_TV(intel_sdvo_connector))
1708                 intel_sdvo_get_tv_modes(connector);
1709         else if (IS_LVDS(intel_sdvo_connector))
1710                 intel_sdvo_get_lvds_modes(connector);
1711         else
1712                 intel_sdvo_get_ddc_modes(connector);
1713
1714         return !list_empty(&connector->probed_modes);
1715 }
1716
1717 static void
1718 intel_sdvo_destroy_enhance_property(struct drm_connector *connector)
1719 {
1720         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1721         struct drm_device *dev = connector->dev;
1722
1723         if (intel_sdvo_connector->left)
1724                 drm_property_destroy(dev, intel_sdvo_connector->left);
1725         if (intel_sdvo_connector->right)
1726                 drm_property_destroy(dev, intel_sdvo_connector->right);
1727         if (intel_sdvo_connector->top)
1728                 drm_property_destroy(dev, intel_sdvo_connector->top);
1729         if (intel_sdvo_connector->bottom)
1730                 drm_property_destroy(dev, intel_sdvo_connector->bottom);
1731         if (intel_sdvo_connector->hpos)
1732                 drm_property_destroy(dev, intel_sdvo_connector->hpos);
1733         if (intel_sdvo_connector->vpos)
1734                 drm_property_destroy(dev, intel_sdvo_connector->vpos);
1735         if (intel_sdvo_connector->saturation)
1736                 drm_property_destroy(dev, intel_sdvo_connector->saturation);
1737         if (intel_sdvo_connector->contrast)
1738                 drm_property_destroy(dev, intel_sdvo_connector->contrast);
1739         if (intel_sdvo_connector->hue)
1740                 drm_property_destroy(dev, intel_sdvo_connector->hue);
1741         if (intel_sdvo_connector->sharpness)
1742                 drm_property_destroy(dev, intel_sdvo_connector->sharpness);
1743         if (intel_sdvo_connector->flicker_filter)
1744                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter);
1745         if (intel_sdvo_connector->flicker_filter_2d)
1746                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_2d);
1747         if (intel_sdvo_connector->flicker_filter_adaptive)
1748                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_adaptive);
1749         if (intel_sdvo_connector->tv_luma_filter)
1750                 drm_property_destroy(dev, intel_sdvo_connector->tv_luma_filter);
1751         if (intel_sdvo_connector->tv_chroma_filter)
1752                 drm_property_destroy(dev, intel_sdvo_connector->tv_chroma_filter);
1753         if (intel_sdvo_connector->dot_crawl)
1754                 drm_property_destroy(dev, intel_sdvo_connector->dot_crawl);
1755         if (intel_sdvo_connector->brightness)
1756                 drm_property_destroy(dev, intel_sdvo_connector->brightness);
1757 }
1758
1759 static void intel_sdvo_destroy(struct drm_connector *connector)
1760 {
1761         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1762
1763         if (intel_sdvo_connector->tv_format)
1764                 drm_property_destroy(connector->dev,
1765                                      intel_sdvo_connector->tv_format);
1766
1767         intel_sdvo_destroy_enhance_property(connector);
1768         drm_sysfs_connector_remove(connector);
1769         drm_connector_cleanup(connector);
1770         kfree(connector);
1771 }
1772
1773 static bool intel_sdvo_detect_hdmi_audio(struct drm_connector *connector)
1774 {
1775         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1776         struct edid *edid;
1777         bool has_audio = false;
1778
1779         if (!intel_sdvo->is_hdmi)
1780                 return false;
1781
1782         edid = intel_sdvo_get_edid(connector);
1783         if (edid != NULL && edid->input & DRM_EDID_INPUT_DIGITAL)
1784                 has_audio = drm_detect_monitor_audio(edid);
1785         kfree(edid);
1786
1787         return has_audio;
1788 }
1789
1790 static int
1791 intel_sdvo_set_property(struct drm_connector *connector,
1792                         struct drm_property *property,
1793                         uint64_t val)
1794 {
1795         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1796         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1797         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1798         uint16_t temp_value;
1799         uint8_t cmd;
1800         int ret;
1801
1802         ret = drm_connector_property_set_value(connector, property, val);
1803         if (ret)
1804                 return ret;
1805
1806         if (property == dev_priv->force_audio_property) {
1807                 int i = val;
1808                 bool has_audio;
1809
1810                 if (i == intel_sdvo_connector->force_audio)
1811                         return 0;
1812
1813                 intel_sdvo_connector->force_audio = i;
1814
1815                 if (i == HDMI_AUDIO_AUTO)
1816                         has_audio = intel_sdvo_detect_hdmi_audio(connector);
1817                 else
1818                         has_audio = (i == HDMI_AUDIO_ON);
1819
1820                 if (has_audio == intel_sdvo->has_hdmi_audio)
1821                         return 0;
1822
1823                 intel_sdvo->has_hdmi_audio = has_audio;
1824                 goto done;
1825         }
1826
1827         if (property == dev_priv->broadcast_rgb_property) {
1828                 if (val == !!intel_sdvo->color_range)
1829                         return 0;
1830
1831                 intel_sdvo->color_range = val ? SDVO_COLOR_RANGE_16_235 : 0;
1832                 goto done;
1833         }
1834
1835 #define CHECK_PROPERTY(name, NAME) \
1836         if (intel_sdvo_connector->name == property) { \
1837                 if (intel_sdvo_connector->cur_##name == temp_value) return 0; \
1838                 if (intel_sdvo_connector->max_##name < temp_value) return -EINVAL; \
1839                 cmd = SDVO_CMD_SET_##NAME; \
1840                 intel_sdvo_connector->cur_##name = temp_value; \
1841                 goto set_value; \
1842         }
1843
1844         if (property == intel_sdvo_connector->tv_format) {
1845                 if (val >= TV_FORMAT_NUM)
1846                         return -EINVAL;
1847
1848                 if (intel_sdvo->tv_format_index ==
1849                     intel_sdvo_connector->tv_format_supported[val])
1850                         return 0;
1851
1852                 intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[val];
1853                 goto done;
1854         } else if (IS_TV_OR_LVDS(intel_sdvo_connector)) {
1855                 temp_value = val;
1856                 if (intel_sdvo_connector->left == property) {
1857                         drm_connector_property_set_value(connector,
1858                                                          intel_sdvo_connector->right, val);
1859                         if (intel_sdvo_connector->left_margin == temp_value)
1860                                 return 0;
1861
1862                         intel_sdvo_connector->left_margin = temp_value;
1863                         intel_sdvo_connector->right_margin = temp_value;
1864                         temp_value = intel_sdvo_connector->max_hscan -
1865                                 intel_sdvo_connector->left_margin;
1866                         cmd = SDVO_CMD_SET_OVERSCAN_H;
1867                         goto set_value;
1868                 } else if (intel_sdvo_connector->right == property) {
1869                         drm_connector_property_set_value(connector,
1870                                                          intel_sdvo_connector->left, val);
1871                         if (intel_sdvo_connector->right_margin == temp_value)
1872                                 return 0;
1873
1874                         intel_sdvo_connector->left_margin = temp_value;
1875                         intel_sdvo_connector->right_margin = temp_value;
1876                         temp_value = intel_sdvo_connector->max_hscan -
1877                                 intel_sdvo_connector->left_margin;
1878                         cmd = SDVO_CMD_SET_OVERSCAN_H;
1879                         goto set_value;
1880                 } else if (intel_sdvo_connector->top == property) {
1881                         drm_connector_property_set_value(connector,
1882                                                          intel_sdvo_connector->bottom, val);
1883                         if (intel_sdvo_connector->top_margin == temp_value)
1884                                 return 0;
1885
1886                         intel_sdvo_connector->top_margin = temp_value;
1887                         intel_sdvo_connector->bottom_margin = temp_value;
1888                         temp_value = intel_sdvo_connector->max_vscan -
1889                                 intel_sdvo_connector->top_margin;
1890                         cmd = SDVO_CMD_SET_OVERSCAN_V;
1891                         goto set_value;
1892                 } else if (intel_sdvo_connector->bottom == property) {
1893                         drm_connector_property_set_value(connector,
1894                                                          intel_sdvo_connector->top, val);
1895                         if (intel_sdvo_connector->bottom_margin == temp_value)
1896                                 return 0;
1897
1898                         intel_sdvo_connector->top_margin = temp_value;
1899                         intel_sdvo_connector->bottom_margin = temp_value;
1900                         temp_value = intel_sdvo_connector->max_vscan -
1901                                 intel_sdvo_connector->top_margin;
1902                         cmd = SDVO_CMD_SET_OVERSCAN_V;
1903                         goto set_value;
1904                 }
1905                 CHECK_PROPERTY(hpos, HPOS)
1906                 CHECK_PROPERTY(vpos, VPOS)
1907                 CHECK_PROPERTY(saturation, SATURATION)
1908                 CHECK_PROPERTY(contrast, CONTRAST)
1909                 CHECK_PROPERTY(hue, HUE)
1910                 CHECK_PROPERTY(brightness, BRIGHTNESS)
1911                 CHECK_PROPERTY(sharpness, SHARPNESS)
1912                 CHECK_PROPERTY(flicker_filter, FLICKER_FILTER)
1913                 CHECK_PROPERTY(flicker_filter_2d, FLICKER_FILTER_2D)
1914                 CHECK_PROPERTY(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE)
1915                 CHECK_PROPERTY(tv_chroma_filter, TV_CHROMA_FILTER)
1916                 CHECK_PROPERTY(tv_luma_filter, TV_LUMA_FILTER)
1917                 CHECK_PROPERTY(dot_crawl, DOT_CRAWL)
1918         }
1919
1920         return -EINVAL; /* unknown property */
1921
1922 set_value:
1923         if (!intel_sdvo_set_value(intel_sdvo, cmd, &temp_value, 2))
1924                 return -EIO;
1925
1926
1927 done:
1928         if (intel_sdvo->base.base.crtc) {
1929                 struct drm_crtc *crtc = intel_sdvo->base.base.crtc;
1930                 intel_set_mode(crtc, &crtc->mode,
1931                                crtc->x, crtc->y, crtc->fb);
1932         }
1933
1934         return 0;
1935 #undef CHECK_PROPERTY
1936 }
1937
1938 static const struct drm_encoder_helper_funcs intel_sdvo_helper_funcs = {
1939         .mode_fixup = intel_sdvo_mode_fixup,
1940         .mode_set = intel_sdvo_mode_set,
1941         .disable = intel_encoder_noop,
1942 };
1943
1944 static const struct drm_connector_funcs intel_sdvo_connector_funcs = {
1945         .dpms = intel_sdvo_dpms,
1946         .detect = intel_sdvo_detect,
1947         .fill_modes = drm_helper_probe_single_connector_modes,
1948         .set_property = intel_sdvo_set_property,
1949         .destroy = intel_sdvo_destroy,
1950 };
1951
1952 static const struct drm_connector_helper_funcs intel_sdvo_connector_helper_funcs = {
1953         .get_modes = intel_sdvo_get_modes,
1954         .mode_valid = intel_sdvo_mode_valid,
1955         .best_encoder = intel_best_encoder,
1956 };
1957
1958 static void intel_sdvo_enc_destroy(struct drm_encoder *encoder)
1959 {
1960         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
1961
1962         if (intel_sdvo->sdvo_lvds_fixed_mode != NULL)
1963                 drm_mode_destroy(encoder->dev,
1964                                  intel_sdvo->sdvo_lvds_fixed_mode);
1965
1966         i2c_del_adapter(&intel_sdvo->ddc);
1967         intel_encoder_destroy(encoder);
1968 }
1969
1970 static const struct drm_encoder_funcs intel_sdvo_enc_funcs = {
1971         .destroy = intel_sdvo_enc_destroy,
1972 };
1973
1974 static void
1975 intel_sdvo_guess_ddc_bus(struct intel_sdvo *sdvo)
1976 {
1977         uint16_t mask = 0;
1978         unsigned int num_bits;
1979
1980         /* Make a mask of outputs less than or equal to our own priority in the
1981          * list.
1982          */
1983         switch (sdvo->controlled_output) {
1984         case SDVO_OUTPUT_LVDS1:
1985                 mask |= SDVO_OUTPUT_LVDS1;
1986         case SDVO_OUTPUT_LVDS0:
1987                 mask |= SDVO_OUTPUT_LVDS0;
1988         case SDVO_OUTPUT_TMDS1:
1989                 mask |= SDVO_OUTPUT_TMDS1;
1990         case SDVO_OUTPUT_TMDS0:
1991                 mask |= SDVO_OUTPUT_TMDS0;
1992         case SDVO_OUTPUT_RGB1:
1993                 mask |= SDVO_OUTPUT_RGB1;
1994         case SDVO_OUTPUT_RGB0:
1995                 mask |= SDVO_OUTPUT_RGB0;
1996                 break;
1997         }
1998
1999         /* Count bits to find what number we are in the priority list. */
2000         mask &= sdvo->caps.output_flags;
2001         num_bits = hweight16(mask);
2002         /* If more than 3 outputs, default to DDC bus 3 for now. */
2003         if (num_bits > 3)
2004                 num_bits = 3;
2005
2006         /* Corresponds to SDVO_CONTROL_BUS_DDCx */
2007         sdvo->ddc_bus = 1 << num_bits;
2008 }
2009
2010 /**
2011  * Choose the appropriate DDC bus for control bus switch command for this
2012  * SDVO output based on the controlled output.
2013  *
2014  * DDC bus number assignment is in a priority order of RGB outputs, then TMDS
2015  * outputs, then LVDS outputs.
2016  */
2017 static void
2018 intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv,
2019                           struct intel_sdvo *sdvo, u32 reg)
2020 {
2021         struct sdvo_device_mapping *mapping;
2022
2023         if (sdvo->is_sdvob)
2024                 mapping = &(dev_priv->sdvo_mappings[0]);
2025         else
2026                 mapping = &(dev_priv->sdvo_mappings[1]);
2027
2028         if (mapping->initialized)
2029                 sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
2030         else
2031                 intel_sdvo_guess_ddc_bus(sdvo);
2032 }
2033
2034 static void
2035 intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
2036                           struct intel_sdvo *sdvo, u32 reg)
2037 {
2038         struct sdvo_device_mapping *mapping;
2039         u8 pin;
2040
2041         if (sdvo->is_sdvob)
2042                 mapping = &dev_priv->sdvo_mappings[0];
2043         else
2044                 mapping = &dev_priv->sdvo_mappings[1];
2045
2046         pin = GMBUS_PORT_DPB;
2047         if (mapping->initialized)
2048                 pin = mapping->i2c_pin;
2049
2050         if (intel_gmbus_is_port_valid(pin)) {
2051                 sdvo->i2c = intel_gmbus_get_adapter(dev_priv, pin);
2052                 intel_gmbus_set_speed(sdvo->i2c, GMBUS_RATE_1MHZ);
2053                 intel_gmbus_force_bit(sdvo->i2c, true);
2054         } else {
2055                 sdvo->i2c = intel_gmbus_get_adapter(dev_priv, GMBUS_PORT_DPB);
2056         }
2057 }
2058
2059 static bool
2060 intel_sdvo_is_hdmi_connector(struct intel_sdvo *intel_sdvo, int device)
2061 {
2062         return intel_sdvo_check_supp_encode(intel_sdvo);
2063 }
2064
2065 static u8
2066 intel_sdvo_get_slave_addr(struct drm_device *dev, struct intel_sdvo *sdvo)
2067 {
2068         struct drm_i915_private *dev_priv = dev->dev_private;
2069         struct sdvo_device_mapping *my_mapping, *other_mapping;
2070
2071         if (sdvo->is_sdvob) {
2072                 my_mapping = &dev_priv->sdvo_mappings[0];
2073                 other_mapping = &dev_priv->sdvo_mappings[1];
2074         } else {
2075                 my_mapping = &dev_priv->sdvo_mappings[1];
2076                 other_mapping = &dev_priv->sdvo_mappings[0];
2077         }
2078
2079         /* If the BIOS described our SDVO device, take advantage of it. */
2080         if (my_mapping->slave_addr)
2081                 return my_mapping->slave_addr;
2082
2083         /* If the BIOS only described a different SDVO device, use the
2084          * address that it isn't using.
2085          */
2086         if (other_mapping->slave_addr) {
2087                 if (other_mapping->slave_addr == 0x70)
2088                         return 0x72;
2089                 else
2090                         return 0x70;
2091         }
2092
2093         /* No SDVO device info is found for another DVO port,
2094          * so use mapping assumption we had before BIOS parsing.
2095          */
2096         if (sdvo->is_sdvob)
2097                 return 0x70;
2098         else
2099                 return 0x72;
2100 }
2101
2102 static void
2103 intel_sdvo_connector_init(struct intel_sdvo_connector *connector,
2104                           struct intel_sdvo *encoder)
2105 {
2106         drm_connector_init(encoder->base.base.dev,
2107                            &connector->base.base,
2108                            &intel_sdvo_connector_funcs,
2109                            connector->base.base.connector_type);
2110
2111         drm_connector_helper_add(&connector->base.base,
2112                                  &intel_sdvo_connector_helper_funcs);
2113
2114         connector->base.base.interlace_allowed = 1;
2115         connector->base.base.doublescan_allowed = 0;
2116         connector->base.base.display_info.subpixel_order = SubPixelHorizontalRGB;
2117         connector->base.get_hw_state = intel_sdvo_connector_get_hw_state;
2118
2119         intel_connector_attach_encoder(&connector->base, &encoder->base);
2120         drm_sysfs_connector_add(&connector->base.base);
2121 }
2122
2123 static void
2124 intel_sdvo_add_hdmi_properties(struct intel_sdvo_connector *connector)
2125 {
2126         struct drm_device *dev = connector->base.base.dev;
2127
2128         intel_attach_force_audio_property(&connector->base.base);
2129         if (INTEL_INFO(dev)->gen >= 4 && IS_MOBILE(dev))
2130                 intel_attach_broadcast_rgb_property(&connector->base.base);
2131 }
2132
2133 static bool
2134 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
2135 {
2136         struct drm_encoder *encoder = &intel_sdvo->base.base;
2137         struct drm_connector *connector;
2138         struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
2139         struct intel_connector *intel_connector;
2140         struct intel_sdvo_connector *intel_sdvo_connector;
2141
2142         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2143         if (!intel_sdvo_connector)
2144                 return false;
2145
2146         if (device == 0) {
2147                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS0;
2148                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS0;
2149         } else if (device == 1) {
2150                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS1;
2151                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS1;
2152         }
2153
2154         intel_connector = &intel_sdvo_connector->base;
2155         connector = &intel_connector->base;
2156         if (intel_sdvo_get_hotplug_support(intel_sdvo) &
2157                 intel_sdvo_connector->output_flag) {
2158                 connector->polled = DRM_CONNECTOR_POLL_HPD;
2159                 intel_sdvo->hotplug_active |= intel_sdvo_connector->output_flag;
2160                 /* Some SDVO devices have one-shot hotplug interrupts.
2161                  * Ensure that they get re-enabled when an interrupt happens.
2162                  */
2163                 intel_encoder->hot_plug = intel_sdvo_enable_hotplug;
2164                 intel_sdvo_enable_hotplug(intel_encoder);
2165         } else {
2166                 connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
2167         }
2168         encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
2169         connector->connector_type = DRM_MODE_CONNECTOR_DVID;
2170
2171         if (intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
2172                 connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
2173                 intel_sdvo->is_hdmi = true;
2174         }
2175         intel_sdvo->base.cloneable = true;
2176
2177         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2178         if (intel_sdvo->is_hdmi)
2179                 intel_sdvo_add_hdmi_properties(intel_sdvo_connector);
2180
2181         return true;
2182 }
2183
2184 static bool
2185 intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
2186 {
2187         struct drm_encoder *encoder = &intel_sdvo->base.base;
2188         struct drm_connector *connector;
2189         struct intel_connector *intel_connector;
2190         struct intel_sdvo_connector *intel_sdvo_connector;
2191
2192         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2193         if (!intel_sdvo_connector)
2194                 return false;
2195
2196         intel_connector = &intel_sdvo_connector->base;
2197         connector = &intel_connector->base;
2198         encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
2199         connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
2200
2201         intel_sdvo->controlled_output |= type;
2202         intel_sdvo_connector->output_flag = type;
2203
2204         intel_sdvo->is_tv = true;
2205         intel_sdvo->base.needs_tv_clock = true;
2206         intel_sdvo->base.cloneable = false;
2207
2208         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2209
2210         if (!intel_sdvo_tv_create_property(intel_sdvo, intel_sdvo_connector, type))
2211                 goto err;
2212
2213         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2214                 goto err;
2215
2216         return true;
2217
2218 err:
2219         intel_sdvo_destroy(connector);
2220         return false;
2221 }
2222
2223 static bool
2224 intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device)
2225 {
2226         struct drm_encoder *encoder = &intel_sdvo->base.base;
2227         struct drm_connector *connector;
2228         struct intel_connector *intel_connector;
2229         struct intel_sdvo_connector *intel_sdvo_connector;
2230
2231         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2232         if (!intel_sdvo_connector)
2233                 return false;
2234
2235         intel_connector = &intel_sdvo_connector->base;
2236         connector = &intel_connector->base;
2237         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
2238         encoder->encoder_type = DRM_MODE_ENCODER_DAC;
2239         connector->connector_type = DRM_MODE_CONNECTOR_VGA;
2240
2241         if (device == 0) {
2242                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB0;
2243                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB0;
2244         } else if (device == 1) {
2245                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB1;
2246                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1;
2247         }
2248
2249         intel_sdvo->base.cloneable = true;
2250
2251         intel_sdvo_connector_init(intel_sdvo_connector,
2252                                   intel_sdvo);
2253         return true;
2254 }
2255
2256 static bool
2257 intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
2258 {
2259         struct drm_encoder *encoder = &intel_sdvo->base.base;
2260         struct drm_connector *connector;
2261         struct intel_connector *intel_connector;
2262         struct intel_sdvo_connector *intel_sdvo_connector;
2263
2264         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2265         if (!intel_sdvo_connector)
2266                 return false;
2267
2268         intel_connector = &intel_sdvo_connector->base;
2269         connector = &intel_connector->base;
2270         encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
2271         connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
2272
2273         if (device == 0) {
2274                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS0;
2275                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS0;
2276         } else if (device == 1) {
2277                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS1;
2278                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1;
2279         }
2280
2281         /* SDVO LVDS is cloneable because the SDVO encoder does the upscaling,
2282          * as opposed to native LVDS, where we upscale with the panel-fitter
2283          * (and hence only the native LVDS resolution could be cloned). */
2284         intel_sdvo->base.cloneable = true;
2285
2286         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2287         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2288                 goto err;
2289
2290         return true;
2291
2292 err:
2293         intel_sdvo_destroy(connector);
2294         return false;
2295 }
2296
2297 static bool
2298 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
2299 {
2300         intel_sdvo->is_tv = false;
2301         intel_sdvo->base.needs_tv_clock = false;
2302         intel_sdvo->is_lvds = false;
2303
2304         /* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
2305
2306         if (flags & SDVO_OUTPUT_TMDS0)
2307                 if (!intel_sdvo_dvi_init(intel_sdvo, 0))
2308                         return false;
2309
2310         if ((flags & SDVO_TMDS_MASK) == SDVO_TMDS_MASK)
2311                 if (!intel_sdvo_dvi_init(intel_sdvo, 1))
2312                         return false;
2313
2314         /* TV has no XXX1 function block */
2315         if (flags & SDVO_OUTPUT_SVID0)
2316                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_SVID0))
2317                         return false;
2318
2319         if (flags & SDVO_OUTPUT_CVBS0)
2320                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_CVBS0))
2321                         return false;
2322
2323         if (flags & SDVO_OUTPUT_YPRPB0)
2324                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_YPRPB0))
2325                         return false;
2326
2327         if (flags & SDVO_OUTPUT_RGB0)
2328                 if (!intel_sdvo_analog_init(intel_sdvo, 0))
2329                         return false;
2330
2331         if ((flags & SDVO_RGB_MASK) == SDVO_RGB_MASK)
2332                 if (!intel_sdvo_analog_init(intel_sdvo, 1))
2333                         return false;
2334
2335         if (flags & SDVO_OUTPUT_LVDS0)
2336                 if (!intel_sdvo_lvds_init(intel_sdvo, 0))
2337                         return false;
2338
2339         if ((flags & SDVO_LVDS_MASK) == SDVO_LVDS_MASK)
2340                 if (!intel_sdvo_lvds_init(intel_sdvo, 1))
2341                         return false;
2342
2343         if ((flags & SDVO_OUTPUT_MASK) == 0) {
2344                 unsigned char bytes[2];
2345
2346                 intel_sdvo->controlled_output = 0;
2347                 memcpy(bytes, &intel_sdvo->caps.output_flags, 2);
2348                 DRM_DEBUG_KMS("%s: Unknown SDVO output type (0x%02x%02x)\n",
2349                               SDVO_NAME(intel_sdvo),
2350                               bytes[0], bytes[1]);
2351                 return false;
2352         }
2353         intel_sdvo->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
2354
2355         return true;
2356 }
2357
2358 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
2359                                           struct intel_sdvo_connector *intel_sdvo_connector,
2360                                           int type)
2361 {
2362         struct drm_device *dev = intel_sdvo->base.base.dev;
2363         struct intel_sdvo_tv_format format;
2364         uint32_t format_map, i;
2365
2366         if (!intel_sdvo_set_target_output(intel_sdvo, type))
2367                 return false;
2368
2369         BUILD_BUG_ON(sizeof(format) != 6);
2370         if (!intel_sdvo_get_value(intel_sdvo,
2371                                   SDVO_CMD_GET_SUPPORTED_TV_FORMATS,
2372                                   &format, sizeof(format)))
2373                 return false;
2374
2375         memcpy(&format_map, &format, min(sizeof(format_map), sizeof(format)));
2376
2377         if (format_map == 0)
2378                 return false;
2379
2380         intel_sdvo_connector->format_supported_num = 0;
2381         for (i = 0 ; i < TV_FORMAT_NUM; i++)
2382                 if (format_map & (1 << i))
2383                         intel_sdvo_connector->tv_format_supported[intel_sdvo_connector->format_supported_num++] = i;
2384
2385
2386         intel_sdvo_connector->tv_format =
2387                         drm_property_create(dev, DRM_MODE_PROP_ENUM,
2388                                             "mode", intel_sdvo_connector->format_supported_num);
2389         if (!intel_sdvo_connector->tv_format)
2390                 return false;
2391
2392         for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
2393                 drm_property_add_enum(
2394                                 intel_sdvo_connector->tv_format, i,
2395                                 i, tv_format_names[intel_sdvo_connector->tv_format_supported[i]]);
2396
2397         intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[0];
2398         drm_connector_attach_property(&intel_sdvo_connector->base.base,
2399                                       intel_sdvo_connector->tv_format, 0);
2400         return true;
2401
2402 }
2403
2404 #define ENHANCEMENT(name, NAME) do { \
2405         if (enhancements.name) { \
2406                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_MAX_##NAME, &data_value, 4) || \
2407                     !intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_##NAME, &response, 2)) \
2408                         return false; \
2409                 intel_sdvo_connector->max_##name = data_value[0]; \
2410                 intel_sdvo_connector->cur_##name = response; \
2411                 intel_sdvo_connector->name = \
2412                         drm_property_create_range(dev, 0, #name, 0, data_value[0]); \
2413                 if (!intel_sdvo_connector->name) return false; \
2414                 drm_connector_attach_property(connector, \
2415                                               intel_sdvo_connector->name, \
2416                                               intel_sdvo_connector->cur_##name); \
2417                 DRM_DEBUG_KMS(#name ": max %d, default %d, current %d\n", \
2418                               data_value[0], data_value[1], response); \
2419         } \
2420 } while (0)
2421
2422 static bool
2423 intel_sdvo_create_enhance_property_tv(struct intel_sdvo *intel_sdvo,
2424                                       struct intel_sdvo_connector *intel_sdvo_connector,
2425                                       struct intel_sdvo_enhancements_reply enhancements)
2426 {
2427         struct drm_device *dev = intel_sdvo->base.base.dev;
2428         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2429         uint16_t response, data_value[2];
2430
2431         /* when horizontal overscan is supported, Add the left/right  property */
2432         if (enhancements.overscan_h) {
2433                 if (!intel_sdvo_get_value(intel_sdvo,
2434                                           SDVO_CMD_GET_MAX_OVERSCAN_H,
2435                                           &data_value, 4))
2436                         return false;
2437
2438                 if (!intel_sdvo_get_value(intel_sdvo,
2439                                           SDVO_CMD_GET_OVERSCAN_H,
2440                                           &response, 2))
2441                         return false;
2442
2443                 intel_sdvo_connector->max_hscan = data_value[0];
2444                 intel_sdvo_connector->left_margin = data_value[0] - response;
2445                 intel_sdvo_connector->right_margin = intel_sdvo_connector->left_margin;
2446                 intel_sdvo_connector->left =
2447                         drm_property_create_range(dev, 0, "left_margin", 0, data_value[0]);
2448                 if (!intel_sdvo_connector->left)
2449                         return false;
2450
2451                 drm_connector_attach_property(connector,
2452                                               intel_sdvo_connector->left,
2453                                               intel_sdvo_connector->left_margin);
2454
2455                 intel_sdvo_connector->right =
2456                         drm_property_create_range(dev, 0, "right_margin", 0, data_value[0]);
2457                 if (!intel_sdvo_connector->right)
2458                         return false;
2459
2460                 drm_connector_attach_property(connector,
2461                                               intel_sdvo_connector->right,
2462                                               intel_sdvo_connector->right_margin);
2463                 DRM_DEBUG_KMS("h_overscan: max %d, "
2464                               "default %d, current %d\n",
2465                               data_value[0], data_value[1], response);
2466         }
2467
2468         if (enhancements.overscan_v) {
2469                 if (!intel_sdvo_get_value(intel_sdvo,
2470                                           SDVO_CMD_GET_MAX_OVERSCAN_V,
2471                                           &data_value, 4))
2472                         return false;
2473
2474                 if (!intel_sdvo_get_value(intel_sdvo,
2475                                           SDVO_CMD_GET_OVERSCAN_V,
2476                                           &response, 2))
2477                         return false;
2478
2479                 intel_sdvo_connector->max_vscan = data_value[0];
2480                 intel_sdvo_connector->top_margin = data_value[0] - response;
2481                 intel_sdvo_connector->bottom_margin = intel_sdvo_connector->top_margin;
2482                 intel_sdvo_connector->top =
2483                         drm_property_create_range(dev, 0,
2484                                             "top_margin", 0, data_value[0]);
2485                 if (!intel_sdvo_connector->top)
2486                         return false;
2487
2488                 drm_connector_attach_property(connector,
2489                                               intel_sdvo_connector->top,
2490                                               intel_sdvo_connector->top_margin);
2491
2492                 intel_sdvo_connector->bottom =
2493                         drm_property_create_range(dev, 0,
2494                                             "bottom_margin", 0, data_value[0]);
2495                 if (!intel_sdvo_connector->bottom)
2496                         return false;
2497
2498                 drm_connector_attach_property(connector,
2499                                               intel_sdvo_connector->bottom,
2500                                               intel_sdvo_connector->bottom_margin);
2501                 DRM_DEBUG_KMS("v_overscan: max %d, "
2502                               "default %d, current %d\n",
2503                               data_value[0], data_value[1], response);
2504         }
2505
2506         ENHANCEMENT(hpos, HPOS);
2507         ENHANCEMENT(vpos, VPOS);
2508         ENHANCEMENT(saturation, SATURATION);
2509         ENHANCEMENT(contrast, CONTRAST);
2510         ENHANCEMENT(hue, HUE);
2511         ENHANCEMENT(sharpness, SHARPNESS);
2512         ENHANCEMENT(brightness, BRIGHTNESS);
2513         ENHANCEMENT(flicker_filter, FLICKER_FILTER);
2514         ENHANCEMENT(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
2515         ENHANCEMENT(flicker_filter_2d, FLICKER_FILTER_2D);
2516         ENHANCEMENT(tv_chroma_filter, TV_CHROMA_FILTER);
2517         ENHANCEMENT(tv_luma_filter, TV_LUMA_FILTER);
2518
2519         if (enhancements.dot_crawl) {
2520                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_DOT_CRAWL, &response, 2))
2521                         return false;
2522
2523                 intel_sdvo_connector->max_dot_crawl = 1;
2524                 intel_sdvo_connector->cur_dot_crawl = response & 0x1;
2525                 intel_sdvo_connector->dot_crawl =
2526                         drm_property_create_range(dev, 0, "dot_crawl", 0, 1);
2527                 if (!intel_sdvo_connector->dot_crawl)
2528                         return false;
2529
2530                 drm_connector_attach_property(connector,
2531                                               intel_sdvo_connector->dot_crawl,
2532                                               intel_sdvo_connector->cur_dot_crawl);
2533                 DRM_DEBUG_KMS("dot crawl: current %d\n", response);
2534         }
2535
2536         return true;
2537 }
2538
2539 static bool
2540 intel_sdvo_create_enhance_property_lvds(struct intel_sdvo *intel_sdvo,
2541                                         struct intel_sdvo_connector *intel_sdvo_connector,
2542                                         struct intel_sdvo_enhancements_reply enhancements)
2543 {
2544         struct drm_device *dev = intel_sdvo->base.base.dev;
2545         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2546         uint16_t response, data_value[2];
2547
2548         ENHANCEMENT(brightness, BRIGHTNESS);
2549
2550         return true;
2551 }
2552 #undef ENHANCEMENT
2553
2554 static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
2555                                                struct intel_sdvo_connector *intel_sdvo_connector)
2556 {
2557         union {
2558                 struct intel_sdvo_enhancements_reply reply;
2559                 uint16_t response;
2560         } enhancements;
2561
2562         BUILD_BUG_ON(sizeof(enhancements) != 2);
2563
2564         enhancements.response = 0;
2565         intel_sdvo_get_value(intel_sdvo,
2566                              SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
2567                              &enhancements, sizeof(enhancements));
2568         if (enhancements.response == 0) {
2569                 DRM_DEBUG_KMS("No enhancement is supported\n");
2570                 return true;
2571         }
2572
2573         if (IS_TV(intel_sdvo_connector))
2574                 return intel_sdvo_create_enhance_property_tv(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2575         else if (IS_LVDS(intel_sdvo_connector))
2576                 return intel_sdvo_create_enhance_property_lvds(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2577         else
2578                 return true;
2579 }
2580
2581 static int intel_sdvo_ddc_proxy_xfer(struct i2c_adapter *adapter,
2582                                      struct i2c_msg *msgs,
2583                                      int num)
2584 {
2585         struct intel_sdvo *sdvo = adapter->algo_data;
2586
2587         if (!intel_sdvo_set_control_bus_switch(sdvo, sdvo->ddc_bus))
2588                 return -EIO;
2589
2590         return sdvo->i2c->algo->master_xfer(sdvo->i2c, msgs, num);
2591 }
2592
2593 static u32 intel_sdvo_ddc_proxy_func(struct i2c_adapter *adapter)
2594 {
2595         struct intel_sdvo *sdvo = adapter->algo_data;
2596         return sdvo->i2c->algo->functionality(sdvo->i2c);
2597 }
2598
2599 static const struct i2c_algorithm intel_sdvo_ddc_proxy = {
2600         .master_xfer    = intel_sdvo_ddc_proxy_xfer,
2601         .functionality  = intel_sdvo_ddc_proxy_func
2602 };
2603
2604 static bool
2605 intel_sdvo_init_ddc_proxy(struct intel_sdvo *sdvo,
2606                           struct drm_device *dev)
2607 {
2608         sdvo->ddc.owner = THIS_MODULE;
2609         sdvo->ddc.class = I2C_CLASS_DDC;
2610         snprintf(sdvo->ddc.name, I2C_NAME_SIZE, "SDVO DDC proxy");
2611         sdvo->ddc.dev.parent = &dev->pdev->dev;
2612         sdvo->ddc.algo_data = sdvo;
2613         sdvo->ddc.algo = &intel_sdvo_ddc_proxy;
2614
2615         return i2c_add_adapter(&sdvo->ddc) == 0;
2616 }
2617
2618 bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
2619 {
2620         struct drm_i915_private *dev_priv = dev->dev_private;
2621         struct intel_encoder *intel_encoder;
2622         struct intel_sdvo *intel_sdvo;
2623         u32 hotplug_mask;
2624         int i;
2625
2626         intel_sdvo = kzalloc(sizeof(struct intel_sdvo), GFP_KERNEL);
2627         if (!intel_sdvo)
2628                 return false;
2629
2630         intel_sdvo->sdvo_reg = sdvo_reg;
2631         intel_sdvo->is_sdvob = is_sdvob;
2632         intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(dev, intel_sdvo) >> 1;
2633         intel_sdvo_select_i2c_bus(dev_priv, intel_sdvo, sdvo_reg);
2634         if (!intel_sdvo_init_ddc_proxy(intel_sdvo, dev)) {
2635                 kfree(intel_sdvo);
2636                 return false;
2637         }
2638
2639         /* encoder type will be decided later */
2640         intel_encoder = &intel_sdvo->base;
2641         intel_encoder->type = INTEL_OUTPUT_SDVO;
2642         drm_encoder_init(dev, &intel_encoder->base, &intel_sdvo_enc_funcs, 0);
2643
2644         /* Read the regs to test if we can talk to the device */
2645         for (i = 0; i < 0x40; i++) {
2646                 u8 byte;
2647
2648                 if (!intel_sdvo_read_byte(intel_sdvo, i, &byte)) {
2649                         DRM_DEBUG_KMS("No SDVO device found on %s\n",
2650                                       SDVO_NAME(intel_sdvo));
2651                         goto err;
2652                 }
2653         }
2654
2655         hotplug_mask = 0;
2656         if (IS_G4X(dev)) {
2657                 hotplug_mask = intel_sdvo->is_sdvob ?
2658                         SDVOB_HOTPLUG_INT_STATUS_G4X : SDVOC_HOTPLUG_INT_STATUS_G4X;
2659         } else if (IS_GEN4(dev)) {
2660                 hotplug_mask = intel_sdvo->is_sdvob ?
2661                         SDVOB_HOTPLUG_INT_STATUS_I965 : SDVOC_HOTPLUG_INT_STATUS_I965;
2662         } else {
2663                 hotplug_mask = intel_sdvo->is_sdvob ?
2664                         SDVOB_HOTPLUG_INT_STATUS_I915 : SDVOC_HOTPLUG_INT_STATUS_I915;
2665         }
2666
2667         drm_encoder_helper_add(&intel_encoder->base, &intel_sdvo_helper_funcs);
2668
2669         intel_encoder->disable = intel_disable_sdvo;
2670         intel_encoder->enable = intel_enable_sdvo;
2671         intel_encoder->get_hw_state = intel_sdvo_get_hw_state;
2672
2673         /* In default case sdvo lvds is false */
2674         if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
2675                 goto err;
2676
2677         if (intel_sdvo_output_setup(intel_sdvo,
2678                                     intel_sdvo->caps.output_flags) != true) {
2679                 DRM_DEBUG_KMS("SDVO output failed to setup on %s\n",
2680                               SDVO_NAME(intel_sdvo));
2681                 goto err;
2682         }
2683
2684         /* Only enable the hotplug irq if we need it, to work around noisy
2685          * hotplug lines.
2686          */
2687         if (intel_sdvo->hotplug_active)
2688                 dev_priv->hotplug_supported_mask |= hotplug_mask;
2689
2690         intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo, sdvo_reg);
2691
2692         /* Set the input timing to the screen. Assume always input 0. */
2693         if (!intel_sdvo_set_target_input(intel_sdvo))
2694                 goto err;
2695
2696         if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
2697                                                     &intel_sdvo->pixel_clock_min,
2698                                                     &intel_sdvo->pixel_clock_max))
2699                 goto err;
2700
2701         DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
2702                         "clock range %dMHz - %dMHz, "
2703                         "input 1: %c, input 2: %c, "
2704                         "output 1: %c, output 2: %c\n",
2705                         SDVO_NAME(intel_sdvo),
2706                         intel_sdvo->caps.vendor_id, intel_sdvo->caps.device_id,
2707                         intel_sdvo->caps.device_rev_id,
2708                         intel_sdvo->pixel_clock_min / 1000,
2709                         intel_sdvo->pixel_clock_max / 1000,
2710                         (intel_sdvo->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
2711                         (intel_sdvo->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
2712                         /* check currently supported outputs */
2713                         intel_sdvo->caps.output_flags &
2714                         (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
2715                         intel_sdvo->caps.output_flags &
2716                         (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
2717         return true;
2718
2719 err:
2720         drm_encoder_cleanup(&intel_encoder->base);
2721         i2c_del_adapter(&intel_sdvo->ddc);
2722         kfree(intel_sdvo);
2723
2724         return false;
2725 }