drivers/gpu/drm/i915/intel_sdvo.c

   1 /*
   2  * Copyright 2006 Dave Airlie <airlied@linux.ie>
   3  * Copyright © 2006-2007 Intel Corporation
   4  *   Jesse Barnes <jesse.barnes@intel.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23  * DEALINGS IN THE SOFTWARE.
  24  *
  25  * Authors:
  26  *      Eric Anholt <eric@anholt.net>
  27  */
  28 #include <linux/i2c.h>
  29 #include <linux/slab.h>
  30 #include <linux/delay.h>
  31 #include <linux/export.h>
  32 #include <drm/drmP.h>
  33 #include <drm/drm_crtc.h>
  34 #include <drm/drm_edid.h>
  35 #include "intel_drv.h"
  36 #include <drm/i915_drm.h>
  37 #include "i915_drv.h"
  38 #include "intel_sdvo_regs.h"
  39
  40 #define SDVO_TMDS_MASK (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)
  41 #define SDVO_RGB_MASK  (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1)
  42 #define SDVO_LVDS_MASK (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1)
  43 #define SDVO_TV_MASK   (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_YPRPB0)
  44
  45 #define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK |\
  46                         SDVO_TV_MASK)
  47
  48 #define IS_TV(c)        (c->output_flag & SDVO_TV_MASK)
  49 #define IS_TMDS(c)      (c->output_flag & SDVO_TMDS_MASK)
  50 #define IS_LVDS(c)      (c->output_flag & SDVO_LVDS_MASK)
  51 #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
  52 #define IS_DIGITAL(c) (c->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK))
  53
  54
  55 static const char *tv_format_names[] = {
  56         "NTSC_M"   , "NTSC_J"  , "NTSC_443",
  57         "PAL_B"    , "PAL_D"   , "PAL_G"   ,
  58         "PAL_H"    , "PAL_I"   , "PAL_M"   ,
  59         "PAL_N"    , "PAL_NC"  , "PAL_60"  ,
  60         "SECAM_B"  , "SECAM_D" , "SECAM_G" ,
  61         "SECAM_K"  , "SECAM_K1", "SECAM_L" ,
  62         "SECAM_60"
  63 };
  64
  65 #define TV_FORMAT_NUM  (sizeof(tv_format_names) / sizeof(*tv_format_names))
  66
  67 struct intel_sdvo {
  68         struct intel_encoder base;
  69
  70         struct i2c_adapter *i2c;
  71         u8 slave_addr;
  72
  73         struct i2c_adapter ddc;
  74
  75         /* Register for the SDVO device: SDVOB or SDVOC */
  76         uint32_t sdvo_reg;
  77
  78         /* Active outputs controlled by this SDVO output */
  79         uint16_t controlled_output;
  80
  81         /*
  82          * Capabilities of the SDVO device returned by
  83          * i830_sdvo_get_capabilities()
  84          */
  85         struct intel_sdvo_caps caps;
  86
  87         /* Pixel clock limitations reported by the SDVO device, in kHz */
  88         int pixel_clock_min, pixel_clock_max;
  89
  90         /*
  91         * For multiple function SDVO device,
  92         * this is for current attached outputs.
  93         */
  94         uint16_t attached_output;
  95
  96         /*
  97          * Hotplug activation bits for this device
  98          */
  99         uint16_t hotplug_active;
 100
 101         /**
 102          * This is used to select the color range of RBG outputs in HDMI mode.
 103          * It is only valid when using TMDS encoding and 8 bit per color mode.
 104          */
 105         uint32_t color_range;
 106
 107         /**
 108          * This is set if we're going to treat the device as TV-out.
 109          *
 110          * While we have these nice friendly flags for output types that ought
 111          * to decide this for us, the S-Video output on our HDMI+S-Video card
 112          * shows up as RGB1 (VGA).
 113          */
 114         bool is_tv;
 115
 116         /* On different gens SDVOB is at different places. */
 117         bool is_sdvob;
 118
 119         /* This is for current tv format name */
 120         int tv_format_index;
 121
 122         /**
 123          * This is set if we treat the device as HDMI, instead of DVI.
 124          */
 125         bool is_hdmi;
 126         bool has_hdmi_monitor;
 127         bool has_hdmi_audio;
 128
 129         /**
 130          * This is set if we detect output of sdvo device as LVDS and
 131          * have a valid fixed mode to use with the panel.
 132          */
 133         bool is_lvds;
 134
 135         /**
 136          * This is sdvo fixed pannel mode pointer
 137          */
 138         struct drm_display_mode *sdvo_lvds_fixed_mode;
 139
 140         /* DDC bus used by this SDVO encoder */
 141         uint8_t ddc_bus;
 142 };
 143
 144 struct intel_sdvo_connector {
 145         struct intel_connector base;
 146
 147         /* Mark the type of connector */
 148         uint16_t output_flag;
 149
 150         enum hdmi_force_audio force_audio;
 151
 152         /* This contains all current supported TV format */
 153         u8 tv_format_supported[TV_FORMAT_NUM];
 154         int   format_supported_num;
 155         struct drm_property *tv_format;
 156
 157         /* add the property for the SDVO-TV */
 158         struct drm_property *left;
 159         struct drm_property *right;
 160         struct drm_property *top;
 161         struct drm_property *bottom;
 162         struct drm_property *hpos;
 163         struct drm_property *vpos;
 164         struct drm_property *contrast;
 165         struct drm_property *saturation;
 166         struct drm_property *hue;
 167         struct drm_property *sharpness;
 168         struct drm_property *flicker_filter;
 169         struct drm_property *flicker_filter_adaptive;
 170         struct drm_property *flicker_filter_2d;
 171         struct drm_property *tv_chroma_filter;
 172         struct drm_property *tv_luma_filter;
 173         struct drm_property *dot_crawl;
 174
 175         /* add the property for the SDVO-TV/LVDS */
 176         struct drm_property *brightness;
 177
 178         /* Add variable to record current setting for the above property */
 179         u32     left_margin, right_margin, top_margin, bottom_margin;
 180
 181         /* this is to get the range of margin.*/
 182         u32     max_hscan,  max_vscan;
 183         u32     max_hpos, cur_hpos;
 184         u32     max_vpos, cur_vpos;
 185         u32     cur_brightness, max_brightness;
 186         u32     cur_contrast,   max_contrast;
 187         u32     cur_saturation, max_saturation;
 188         u32     cur_hue,        max_hue;
 189         u32     cur_sharpness,  max_sharpness;
 190         u32     cur_flicker_filter,             max_flicker_filter;
 191         u32     cur_flicker_filter_adaptive,    max_flicker_filter_adaptive;
 192         u32     cur_flicker_filter_2d,          max_flicker_filter_2d;
 193         u32     cur_tv_chroma_filter,   max_tv_chroma_filter;
 194         u32     cur_tv_luma_filter,     max_tv_luma_filter;
 195         u32     cur_dot_crawl,  max_dot_crawl;
 196 };
 197
 198 static struct intel_sdvo *to_intel_sdvo(struct drm_encoder *encoder)
 199 {
 200         return container_of(encoder, struct intel_sdvo, base.base);
 201 }
 202
 203 static struct intel_sdvo *intel_attached_sdvo(struct drm_connector *connector)
 204 {
 205         return container_of(intel_attached_encoder(connector),
 206                             struct intel_sdvo, base);
 207 }
 208
 209 static struct intel_sdvo_connector *to_intel_sdvo_connector(struct drm_connector *connector)
 210 {
 211         return container_of(to_intel_connector(connector), struct intel_sdvo_connector, base);
 212 }
 213
 214 static bool
 215 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags);
 216 static bool
 217 intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
 218                               struct intel_sdvo_connector *intel_sdvo_connector,
 219                               int type);
 220 static bool
 221 intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
 222                                    struct intel_sdvo_connector *intel_sdvo_connector);
 223
 224 /**
 225  * Writes the SDVOB or SDVOC with the given value, but always writes both
 226  * SDVOB and SDVOC to work around apparent hardware issues (according to
 227  * comments in the BIOS).
 228  */
 229 static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val)
 230 {
 231         struct drm_device *dev = intel_sdvo->base.base.dev;
 232         struct drm_i915_private *dev_priv = dev->dev_private;
 233         u32 bval = val, cval = val;
 234         int i;
 235
 236         if (intel_sdvo->sdvo_reg == PCH_SDVOB) {
 237                 I915_WRITE(intel_sdvo->sdvo_reg, val);
 238                 I915_READ(intel_sdvo->sdvo_reg);
 239                 return;
 240         }
 241
 242         if (intel_sdvo->sdvo_reg == SDVOB) {
 243                 cval = I915_READ(SDVOC);
 244         } else {
 245                 bval = I915_READ(SDVOB);
 246         }
 247         /*
 248          * Write the registers twice for luck. Sometimes,
 249          * writing them only once doesn't appear to 'stick'.
 250          * The BIOS does this too. Yay, magic
 251          */
 252         for (i = 0; i < 2; i++)
 253         {
 254                 I915_WRITE(SDVOB, bval);
 255                 I915_READ(SDVOB);
 256                 I915_WRITE(SDVOC, cval);
 257                 I915_READ(SDVOC);
 258         }
 259 }
 260
 261 static bool intel_sdvo_read_byte(struct intel_sdvo *intel_sdvo, u8 addr, u8 *ch)
 262 {
 263         struct i2c_msg msgs[] = {
 264                 {
 265                         .addr = intel_sdvo->slave_addr,
 266                         .flags = 0,
 267                         .len = 1,
 268                         .buf = &addr,
 269                 },
 270                 {
 271                         .addr = intel_sdvo->slave_addr,
 272                         .flags = I2C_M_RD,
 273                         .len = 1,
 274                         .buf = ch,
 275                 }
 276         };
 277         int ret;
 278
 279         if ((ret = i2c_transfer(intel_sdvo->i2c, msgs, 2)) == 2)
 280                 return true;
 281
 282         DRM_DEBUG_KMS("i2c transfer returned %d\n", ret);
 283         return false;
 284 }
 285
 286 #define SDVO_CMD_NAME_ENTRY(cmd) {cmd, #cmd}
 287 /** Mapping of command numbers to names, for debug output */
 288 static const struct _sdvo_cmd_name {
 289         u8 cmd;
 290         const char *name;
 291 } sdvo_cmd_names[] = {
 292         SDVO_CMD_NAME_ENTRY(SDVO_CMD_RESET),
 293         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DEVICE_CAPS),
 294         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FIRMWARE_REV),
 295         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TRAINED_INPUTS),
 296         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_OUTPUTS),
 297         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_OUTPUTS),
 298         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_IN_OUT_MAP),
 299         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_IN_OUT_MAP),
 300         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ATTACHED_DISPLAYS),
 301         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HOT_PLUG_SUPPORT),
 302         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_HOT_PLUG),
 303         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_HOT_PLUG),
 304         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INTERRUPT_EVENT_SOURCE),
 305         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_INPUT),
 306         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_OUTPUT),
 307         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART1),
 308         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART2),
 309         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 310         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART2),
 311         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 312         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART1),
 313         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART2),
 314         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART1),
 315         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART2),
 316         SDVO_CMD_NAME_ENTRY(SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING),
 317         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1),
 318         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2),
 319         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE),
 320         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_PIXEL_CLOCK_RANGE),
 321         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_CLOCK_RATE_MULTS),
 322         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CLOCK_RATE_MULT),
 323         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CLOCK_RATE_MULT),
 324         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_TV_FORMATS),
 325         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_FORMAT),
 326         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_FORMAT),
 327         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_POWER_STATES),
 328         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_POWER_STATE),
 329         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODER_POWER_STATE),
 330         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DISPLAY_POWER_STATE),
 331         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTROL_BUS_SWITCH),
 332         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT),
 333         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SCALED_HDTV_RESOLUTION_SUPPORT),
 334         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS),
 335
 336         /* Add the op code for SDVO enhancements */
 337         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HPOS),
 338         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HPOS),
 339         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HPOS),
 340         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_VPOS),
 341         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_VPOS),
 342         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_VPOS),
 343         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SATURATION),
 344         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SATURATION),
 345         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SATURATION),
 346         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HUE),
 347         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HUE),
 348         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HUE),
 349         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_CONTRAST),
 350         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CONTRAST),
 351         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTRAST),
 352         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_BRIGHTNESS),
 353         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_BRIGHTNESS),
 354         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_BRIGHTNESS),
 355         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_H),
 356         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_H),
 357         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_H),
 358         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_V),
 359         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_V),
 360         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_V),
 361         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER),
 362         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER),
 363         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER),
 364         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_ADAPTIVE),
 365         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_ADAPTIVE),
 366         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_ADAPTIVE),
 367         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_2D),
 368         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_2D),
 369         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_2D),
 370         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SHARPNESS),
 371         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SHARPNESS),
 372         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SHARPNESS),
 373         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DOT_CRAWL),
 374         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DOT_CRAWL),
 375         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_CHROMA_FILTER),
 376         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_CHROMA_FILTER),
 377         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_CHROMA_FILTER),
 378         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_LUMA_FILTER),
 379         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_LUMA_FILTER),
 380         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_LUMA_FILTER),
 381
 382         /* HDMI op code */
 383         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPP_ENCODE),
 384         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ENCODE),
 385         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODE),
 386         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_PIXEL_REPLI),
 387         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PIXEL_REPLI),
 388         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY_CAP),
 389         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_COLORIMETRY),
 390         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY),
 391         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_ENCRYPT_PREFER),
 392         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_AUDIO_STAT),
 393         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_STAT),
 394         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INDEX),
 395         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_INDEX),
 396         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INFO),
 397         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_AV_SPLIT),
 398         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_AV_SPLIT),
 399         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_TXRATE),
 400         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_TXRATE),
 401         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_DATA),
 402         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_DATA),
 403 };
 404
 405 #define SDVO_NAME(svdo) ((svdo)->is_sdvob ? "SDVOB" : "SDVOC")
 406
 407 static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd,
 408                                    const void *args, int args_len)
 409 {
 410         int i;
 411
 412         DRM_DEBUG_KMS("%s: W: %02X ",
 413                                 SDVO_NAME(intel_sdvo), cmd);
 414         for (i = 0; i < args_len; i++)
 415                 DRM_LOG_KMS("%02X ", ((u8 *)args)[i]);
 416         for (; i < 8; i++)
 417                 DRM_LOG_KMS("   ");
 418         for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) {
 419                 if (cmd == sdvo_cmd_names[i].cmd) {
 420                         DRM_LOG_KMS("(%s)", sdvo_cmd_names[i].name);
 421                         break;
 422                 }
 423         }
 424         if (i == ARRAY_SIZE(sdvo_cmd_names))
 425                 DRM_LOG_KMS("(%02X)", cmd);
 426         DRM_LOG_KMS("\n");
 427 }
 428
 429 static const char *cmd_status_names[] = {
 430         "Power on",
 431         "Success",
 432         "Not supported",
 433         "Invalid arg",
 434         "Pending",
 435         "Target not specified",
 436         "Scaling not supported"
 437 };
 438
 439 static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
 440                                  const void *args, int args_len)
 441 {
 442         u8 *buf, status;
 443         struct i2c_msg *msgs;
 444         int i, ret = true;
 445
 446         /* Would be simpler to allocate both in one go ? */
 447         buf = (u8 *)kzalloc(args_len * 2 + 2, GFP_KERNEL);
 448         if (!buf)
 449                 return false;
 450
 451         msgs = kcalloc(args_len + 3, sizeof(*msgs), GFP_KERNEL);
 452         if (!msgs) {
 453                 kfree(buf);
 454                 return false;
 455         }
 456
 457         intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
 458
 459         for (i = 0; i < args_len; i++) {
 460                 msgs[i].addr = intel_sdvo->slave_addr;
 461                 msgs[i].flags = 0;
 462                 msgs[i].len = 2;
 463                 msgs[i].buf = buf + 2 *i;
 464                 buf[2*i + 0] = SDVO_I2C_ARG_0 - i;
 465                 buf[2*i + 1] = ((u8*)args)[i];
 466         }
 467         msgs[i].addr = intel_sdvo->slave_addr;
 468         msgs[i].flags = 0;
 469         msgs[i].len = 2;
 470         msgs[i].buf = buf + 2*i;
 471         buf[2*i + 0] = SDVO_I2C_OPCODE;
 472         buf[2*i + 1] = cmd;
 473
 474         /* the following two are to read the response */
 475         status = SDVO_I2C_CMD_STATUS;
 476         msgs[i+1].addr = intel_sdvo->slave_addr;
 477         msgs[i+1].flags = 0;
 478         msgs[i+1].len = 1;
 479         msgs[i+1].buf = &status;
 480
 481         msgs[i+2].addr = intel_sdvo->slave_addr;
 482         msgs[i+2].flags = I2C_M_RD;
 483         msgs[i+2].len = 1;
 484         msgs[i+2].buf = &status;
 485
 486         ret = i2c_transfer(intel_sdvo->i2c, msgs, i+3);
 487         if (ret < 0) {
 488                 DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
 489                 ret = false;
 490                 goto out;
 491         }
 492         if (ret != i+3) {
 493                 /* failure in I2C transfer */
 494                 DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3);
 495                 ret = false;
 496         }
 497
 498 out:
 499         kfree(msgs);
 500         kfree(buf);
 501         return ret;
 502 }
 503
 504 static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
 505                                      void *response, int response_len)
 506 {
 507         u8 retry = 5;
 508         u8 status;
 509         int i;
 510
 511         DRM_DEBUG_KMS("%s: R: ", SDVO_NAME(intel_sdvo));
 512
 513         /*
 514          * The documentation states that all commands will be
 515          * processed within 15µs, and that we need only poll
 516          * the status byte a maximum of 3 times in order for the
 517          * command to be complete.
 518          *
 519          * Check 5 times in case the hardware failed to read the docs.
 520          */
 521         if (!intel_sdvo_read_byte(intel_sdvo,
 522                                   SDVO_I2C_CMD_STATUS,
 523                                   &status))
 524                 goto log_fail;
 525
 526         while (status == SDVO_CMD_STATUS_PENDING && retry--) {
 527                 udelay(15);
 528                 if (!intel_sdvo_read_byte(intel_sdvo,
 529                                           SDVO_I2C_CMD_STATUS,
 530                                           &status))
 531                         goto log_fail;
 532         }
 533
 534         if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
 535                 DRM_LOG_KMS("(%s)", cmd_status_names[status]);
 536         else
 537                 DRM_LOG_KMS("(??? %d)", status);
 538
 539         if (status != SDVO_CMD_STATUS_SUCCESS)
 540                 goto log_fail;
 541
 542         /* Read the command response */
 543         for (i = 0; i < response_len; i++) {
 544                 if (!intel_sdvo_read_byte(intel_sdvo,
 545                                           SDVO_I2C_RETURN_0 + i,
 546                                           &((u8 *)response)[i]))
 547                         goto log_fail;
 548                 DRM_LOG_KMS(" %02X", ((u8 *)response)[i]);
 549         }
 550         DRM_LOG_KMS("\n");
 551         return true;
 552
 553 log_fail:
 554         DRM_LOG_KMS("... failed\n");
 555         return false;
 556 }
 557
 558 static int intel_sdvo_get_pixel_multiplier(struct drm_display_mode *mode)
 559 {
 560         if (mode->clock >= 100000)
 561                 return 1;
 562         else if (mode->clock >= 50000)
 563                 return 2;
 564         else
 565                 return 4;
 566 }
 567
 568 static bool intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo,
 569                                               u8 ddc_bus)
 570 {
 571         /* This must be the immediately preceding write before the i2c xfer */
 572         return intel_sdvo_write_cmd(intel_sdvo,
 573                                     SDVO_CMD_SET_CONTROL_BUS_SWITCH,
 574                                     &ddc_bus, 1);
 575 }
 576
 577 static bool intel_sdvo_set_value(struct intel_sdvo *intel_sdvo, u8 cmd, const void *data, int len)
 578 {
 579         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, data, len))
 580                 return false;
 581
 582         return intel_sdvo_read_response(intel_sdvo, NULL, 0);
 583 }
 584
 585 static bool
 586 intel_sdvo_get_value(struct intel_sdvo *intel_sdvo, u8 cmd, void *value, int len)
 587 {
 588         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, NULL, 0))
 589                 return false;
 590
 591         return intel_sdvo_read_response(intel_sdvo, value, len);
 592 }
 593
 594 static bool intel_sdvo_set_target_input(struct intel_sdvo *intel_sdvo)
 595 {
 596         struct intel_sdvo_set_target_input_args targets = {0};
 597         return intel_sdvo_set_value(intel_sdvo,
 598                                     SDVO_CMD_SET_TARGET_INPUT,
 599                                     &targets, sizeof(targets));
 600 }
 601
 602 /**
 603  * Return whether each input is trained.
 604  *
 605  * This function is making an assumption about the layout of the response,
 606  * which should be checked against the docs.
 607  */
 608 static bool intel_sdvo_get_trained_inputs(struct intel_sdvo *intel_sdvo, bool *input_1, bool *input_2)
 609 {
 610         struct intel_sdvo_get_trained_inputs_response response;
 611
 612         BUILD_BUG_ON(sizeof(response) != 1);
 613         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_TRAINED_INPUTS,
 614                                   &response, sizeof(response)))
 615                 return false;
 616
 617         *input_1 = response.input0_trained;
 618         *input_2 = response.input1_trained;
 619         return true;
 620 }
 621
 622 static bool intel_sdvo_set_active_outputs(struct intel_sdvo *intel_sdvo,
 623                                           u16 outputs)
 624 {
 625         return intel_sdvo_set_value(intel_sdvo,
 626                                     SDVO_CMD_SET_ACTIVE_OUTPUTS,
 627                                     &outputs, sizeof(outputs));
 628 }
 629
 630 static bool intel_sdvo_get_active_outputs(struct intel_sdvo *intel_sdvo,
 631                                           u16 *outputs)
 632 {
 633         return intel_sdvo_get_value(intel_sdvo,
 634                                     SDVO_CMD_GET_ACTIVE_OUTPUTS,
 635                                     outputs, sizeof(*outputs));
 636 }
 637
 638 static bool intel_sdvo_set_encoder_power_state(struct intel_sdvo *intel_sdvo,
 639                                                int mode)
 640 {
 641         u8 state = SDVO_ENCODER_STATE_ON;
 642
 643         switch (mode) {
 644         case DRM_MODE_DPMS_ON:
 645                 state = SDVO_ENCODER_STATE_ON;
 646                 break;
 647         case DRM_MODE_DPMS_STANDBY:
 648                 state = SDVO_ENCODER_STATE_STANDBY;
 649                 break;
 650         case DRM_MODE_DPMS_SUSPEND:
 651                 state = SDVO_ENCODER_STATE_SUSPEND;
 652                 break;
 653         case DRM_MODE_DPMS_OFF:
 654                 state = SDVO_ENCODER_STATE_OFF;
 655                 break;
 656         }
 657
 658         return intel_sdvo_set_value(intel_sdvo,
 659                                     SDVO_CMD_SET_ENCODER_POWER_STATE, &state, sizeof(state));
 660 }
 661
 662 static bool intel_sdvo_get_input_pixel_clock_range(struct intel_sdvo *intel_sdvo,
 663                                                    int *clock_min,
 664                                                    int *clock_max)
 665 {
 666         struct intel_sdvo_pixel_clock_range clocks;
 667
 668         BUILD_BUG_ON(sizeof(clocks) != 4);
 669         if (!intel_sdvo_get_value(intel_sdvo,
 670                                   SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
 671                                   &clocks, sizeof(clocks)))
 672                 return false;
 673
 674         /* Convert the values from units of 10 kHz to kHz. */
 675         *clock_min = clocks.min * 10;
 676         *clock_max = clocks.max * 10;
 677         return true;
 678 }
 679
 680 static bool intel_sdvo_set_target_output(struct intel_sdvo *intel_sdvo,
 681                                          u16 outputs)
 682 {
 683         return intel_sdvo_set_value(intel_sdvo,
 684                                     SDVO_CMD_SET_TARGET_OUTPUT,
 685                                     &outputs, sizeof(outputs));
 686 }
 687
 688 static bool intel_sdvo_set_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 689                                   struct intel_sdvo_dtd *dtd)
 690 {
 691         return intel_sdvo_set_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 692                 intel_sdvo_set_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 693 }
 694
 695 static bool intel_sdvo_set_input_timing(struct intel_sdvo *intel_sdvo,
 696                                          struct intel_sdvo_dtd *dtd)
 697 {
 698         return intel_sdvo_set_timing(intel_sdvo,
 699                                      SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd);
 700 }
 701
 702 static bool intel_sdvo_set_output_timing(struct intel_sdvo *intel_sdvo,
 703                                          struct intel_sdvo_dtd *dtd)
 704 {
 705         return intel_sdvo_set_timing(intel_sdvo,
 706                                      SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd);
 707 }
 708
 709 static bool
 710 intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 711                                          uint16_t clock,
 712                                          uint16_t width,
 713                                          uint16_t height)
 714 {
 715         struct intel_sdvo_preferred_input_timing_args args;
 716
 717         memset(&args, 0, sizeof(args));
 718         args.clock = clock;
 719         args.width = width;
 720         args.height = height;
 721         args.interlace = 0;
 722
 723         if (intel_sdvo->is_lvds &&
 724            (intel_sdvo->sdvo_lvds_fixed_mode->hdisplay != width ||
 725             intel_sdvo->sdvo_lvds_fixed_mode->vdisplay != height))
 726                 args.scaled = 1;
 727
 728         return intel_sdvo_set_value(intel_sdvo,
 729                                     SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
 730                                     &args, sizeof(args));
 731 }
 732
 733 static bool intel_sdvo_get_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 734                                                   struct intel_sdvo_dtd *dtd)
 735 {
 736         BUILD_BUG_ON(sizeof(dtd->part1) != 8);
 737         BUILD_BUG_ON(sizeof(dtd->part2) != 8);
 738         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
 739                                     &dtd->part1, sizeof(dtd->part1)) &&
 740                 intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
 741                                      &dtd->part2, sizeof(dtd->part2));
 742 }
 743
 744 static bool intel_sdvo_set_clock_rate_mult(struct intel_sdvo *intel_sdvo, u8 val)
 745 {
 746         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
 747 }
 748
 749 static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
 750                                          const struct drm_display_mode *mode)
 751 {
 752         uint16_t width, height;
 753         uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len;
 754         uint16_t h_sync_offset, v_sync_offset;
 755         int mode_clock;
 756
 757         width = mode->hdisplay;
 758         height = mode->vdisplay;
 759
 760         /* do some mode translations */
 761         h_blank_len = mode->htotal - mode->hdisplay;
 762         h_sync_len = mode->hsync_end - mode->hsync_start;
 763
 764         v_blank_len = mode->vtotal - mode->vdisplay;
 765         v_sync_len = mode->vsync_end - mode->vsync_start;
 766
 767         h_sync_offset = mode->hsync_start - mode->hdisplay;
 768         v_sync_offset = mode->vsync_start - mode->vdisplay;
 769
 770         mode_clock = mode->clock;
 771         mode_clock /= intel_mode_get_pixel_multiplier(mode) ?: 1;
 772         mode_clock /= 10;
 773         dtd->part1.clock = mode_clock;
 774
 775         dtd->part1.h_active = width & 0xff;
 776         dtd->part1.h_blank = h_blank_len & 0xff;
 777         dtd->part1.h_high = (((width >> 8) & 0xf) << 4) |
 778                 ((h_blank_len >> 8) & 0xf);
 779         dtd->part1.v_active = height & 0xff;
 780         dtd->part1.v_blank = v_blank_len & 0xff;
 781         dtd->part1.v_high = (((height >> 8) & 0xf) << 4) |
 782                 ((v_blank_len >> 8) & 0xf);
 783
 784         dtd->part2.h_sync_off = h_sync_offset & 0xff;
 785         dtd->part2.h_sync_width = h_sync_len & 0xff;
 786         dtd->part2.v_sync_off_width = (v_sync_offset & 0xf) << 4 |
 787                 (v_sync_len & 0xf);
 788         dtd->part2.sync_off_width_high = ((h_sync_offset & 0x300) >> 2) |
 789                 ((h_sync_len & 0x300) >> 4) | ((v_sync_offset & 0x30) >> 2) |
 790                 ((v_sync_len & 0x30) >> 4);
 791
 792         dtd->part2.dtd_flags = 0x18;
 793         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 794                 dtd->part2.dtd_flags |= DTD_FLAG_INTERLACE;
 795         if (mode->flags & DRM_MODE_FLAG_PHSYNC)
 796                 dtd->part2.dtd_flags |= DTD_FLAG_HSYNC_POSITIVE;
 797         if (mode->flags & DRM_MODE_FLAG_PVSYNC)
 798                 dtd->part2.dtd_flags |= DTD_FLAG_VSYNC_POSITIVE;
 799
 800         dtd->part2.sdvo_flags = 0;
 801         dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
 802         dtd->part2.reserved = 0;
 803 }
 804
 805 static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode,
 806                                          const struct intel_sdvo_dtd *dtd)
 807 {
 808         mode->hdisplay = dtd->part1.h_active;
 809         mode->hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
 810         mode->hsync_start = mode->hdisplay + dtd->part2.h_sync_off;
 811         mode->hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
 812         mode->hsync_end = mode->hsync_start + dtd->part2.h_sync_width;
 813         mode->hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
 814         mode->htotal = mode->hdisplay + dtd->part1.h_blank;
 815         mode->htotal += (dtd->part1.h_high & 0xf) << 8;
 816
 817         mode->vdisplay = dtd->part1.v_active;
 818         mode->vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
 819         mode->vsync_start = mode->vdisplay;
 820         mode->vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
 821         mode->vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
 822         mode->vsync_start += dtd->part2.v_sync_off_high & 0xc0;
 823         mode->vsync_end = mode->vsync_start +
 824                 (dtd->part2.v_sync_off_width & 0xf);
 825         mode->vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
 826         mode->vtotal = mode->vdisplay + dtd->part1.v_blank;
 827         mode->vtotal += (dtd->part1.v_high & 0xf) << 8;
 828
 829         mode->clock = dtd->part1.clock * 10;
 830
 831         mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
 832         if (dtd->part2.dtd_flags & DTD_FLAG_INTERLACE)
 833                 mode->flags |= DRM_MODE_FLAG_INTERLACE;
 834         if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
 835                 mode->flags |= DRM_MODE_FLAG_PHSYNC;
 836         if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
 837                 mode->flags |= DRM_MODE_FLAG_PVSYNC;
 838 }
 839
 840 static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo)
 841 {
 842         struct intel_sdvo_encode encode;
 843
 844         BUILD_BUG_ON(sizeof(encode) != 2);
 845         return intel_sdvo_get_value(intel_sdvo,
 846                                   SDVO_CMD_GET_SUPP_ENCODE,
 847                                   &encode, sizeof(encode));
 848 }
 849
 850 static bool intel_sdvo_set_encode(struct intel_sdvo *intel_sdvo,
 851                                   uint8_t mode)
 852 {
 853         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_ENCODE, &mode, 1);
 854 }
 855
 856 static bool intel_sdvo_set_colorimetry(struct intel_sdvo *intel_sdvo,
 857                                        uint8_t mode)
 858 {
 859         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
 860 }
 861
 862 #if 0
 863 static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
 864 {
 865         int i, j;
 866         uint8_t set_buf_index[2];
 867         uint8_t av_split;
 868         uint8_t buf_size;
 869         uint8_t buf[48];
 870         uint8_t *pos;
 871
 872         intel_sdvo_get_value(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, &av_split, 1);
 873
 874         for (i = 0; i <= av_split; i++) {
 875                 set_buf_index[0] = i; set_buf_index[1] = 0;
 876                 intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX,
 877                                      set_buf_index, 2);
 878                 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
 879                 intel_sdvo_read_response(encoder, &buf_size, 1);
 880
 881                 pos = buf;
 882                 for (j = 0; j <= buf_size; j += 8) {
 883                         intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA,
 884                                              NULL, 0);
 885                         intel_sdvo_read_response(encoder, pos, 8);
 886                         pos += 8;
 887                 }
 888         }
 889 }
 890 #endif
 891
 892 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
 893 {
 894         struct dip_infoframe avi_if = {
 895                 .type = DIP_TYPE_AVI,
 896                 .ver = DIP_VERSION_AVI,
 897                 .len = DIP_LEN_AVI,
 898         };
 899         uint8_t tx_rate = SDVO_HBUF_TX_VSYNC;
 900         uint8_t set_buf_index[2] = { 1, 0 };
 901         uint8_t sdvo_data[4 + sizeof(avi_if.body.avi)];
 902         uint64_t *data = (uint64_t *)sdvo_data;
 903         unsigned i;
 904
 905         intel_dip_infoframe_csum(&avi_if);
 906
 907         /* sdvo spec says that the ecc is handled by the hw, and it looks like
 908          * we must not send the ecc field, either. */
 909         memcpy(sdvo_data, &avi_if, 3);
 910         sdvo_data[3] = avi_if.checksum;
 911         memcpy(&sdvo_data[4], &avi_if.body, sizeof(avi_if.body.avi));
 912
 913         if (!intel_sdvo_set_value(intel_sdvo,
 914                                   SDVO_CMD_SET_HBUF_INDEX,
 915                                   set_buf_index, 2))
 916                 return false;
 917
 918         for (i = 0; i < sizeof(sdvo_data); i += 8) {
 919                 if (!intel_sdvo_set_value(intel_sdvo,
 920                                           SDVO_CMD_SET_HBUF_DATA,
 921                                           data, 8))
 922                         return false;
 923                 data++;
 924         }
 925
 926         return intel_sdvo_set_value(intel_sdvo,
 927                                     SDVO_CMD_SET_HBUF_TXRATE,
 928                                     &tx_rate, 1);
 929 }
 930
 931 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
 932 {
 933         struct intel_sdvo_tv_format format;
 934         uint32_t format_map;
 935
 936         format_map = 1 << intel_sdvo->tv_format_index;
 937         memset(&format, 0, sizeof(format));
 938         memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map)));
 939
 940         BUILD_BUG_ON(sizeof(format) != 6);
 941         return intel_sdvo_set_value(intel_sdvo,
 942                                     SDVO_CMD_SET_TV_FORMAT,
 943                                     &format, sizeof(format));
 944 }
 945
 946 static bool
 947 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
 948                                         const struct drm_display_mode *mode)
 949 {
 950         struct intel_sdvo_dtd output_dtd;
 951
 952         if (!intel_sdvo_set_target_output(intel_sdvo,
 953                                           intel_sdvo->attached_output))
 954                 return false;
 955
 956         intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
 957         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
 958                 return false;
 959
 960         return true;
 961 }
 962
 963 /* Asks the sdvo controller for the preferred input mode given the output mode.
 964  * Unfortunately we have to set up the full output mode to do that. */
 965 static bool
 966 intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
 967                                     const struct drm_display_mode *mode,
 968                                     struct drm_display_mode *adjusted_mode)
 969 {
 970         struct intel_sdvo_dtd input_dtd;
 971
 972         /* Reset the input timing to the screen. Assume always input 0. */
 973         if (!intel_sdvo_set_target_input(intel_sdvo))
 974                 return false;
 975
 976         if (!intel_sdvo_create_preferred_input_timing(intel_sdvo,
 977                                                       mode->clock / 10,
 978                                                       mode->hdisplay,
 979                                                       mode->vdisplay))
 980                 return false;
 981
 982         if (!intel_sdvo_get_preferred_input_timing(intel_sdvo,
 983                                                    &input_dtd))
 984                 return false;
 985
 986         intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd);
 987
 988         return true;
 989 }
 990
 991 static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
 992                                   const struct drm_display_mode *mode,
 993                                   struct drm_display_mode *adjusted_mode)
 994 {
 995         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
 996         int multiplier;
 997
 998         /* We need to construct preferred input timings based on our
 999          * output timings.  To do that, we have to set the output
1000          * timings, even though this isn't really the right place in
1001          * the sequence to do it. Oh well.
1002          */
1003         if (intel_sdvo->is_tv) {
1004                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
1005                         return false;
1006
1007                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1008                                                            mode,
1009                                                            adjusted_mode);
1010         } else if (intel_sdvo->is_lvds) {
1011                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
1012                                                              intel_sdvo->sdvo_lvds_fixed_mode))
1013                         return false;
1014
1015                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1016                                                            mode,
1017                                                            adjusted_mode);
1018         }
1019
1020         /* Make the CRTC code factor in the SDVO pixel multiplier.  The
1021          * SDVO device will factor out the multiplier during mode_set.
1022          */
1023         multiplier = intel_sdvo_get_pixel_multiplier(adjusted_mode);
1024         intel_mode_set_pixel_multiplier(adjusted_mode, multiplier);
1025
1026         return true;
1027 }
1028
1029 static void intel_sdvo_mode_set(struct drm_encoder *encoder,
1030                                 struct drm_display_mode *mode,
1031                                 struct drm_display_mode *adjusted_mode)
1032 {
1033         struct drm_device *dev = encoder->dev;
1034         struct drm_i915_private *dev_priv = dev->dev_private;
1035         struct drm_crtc *crtc = encoder->crtc;
1036         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1037         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
1038         u32 sdvox;
1039         struct intel_sdvo_in_out_map in_out;
1040         struct intel_sdvo_dtd input_dtd, output_dtd;
1041         int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);
1042         int rate;
1043
1044         if (!mode)
1045                 return;
1046
1047         /* First, set the input mapping for the first input to our controlled
1048          * output. This is only correct if we're a single-input device, in
1049          * which case the first input is the output from the appropriate SDVO
1050          * channel on the motherboard.  In a two-input device, the first input
1051          * will be SDVOB and the second SDVOC.
1052          */
1053         in_out.in0 = intel_sdvo->attached_output;
1054         in_out.in1 = 0;
1055
1056         intel_sdvo_set_value(intel_sdvo,
1057                              SDVO_CMD_SET_IN_OUT_MAP,
1058                              &in_out, sizeof(in_out));
1059
1060         /* Set the output timings to the screen */
1061         if (!intel_sdvo_set_target_output(intel_sdvo,
1062                                           intel_sdvo->attached_output))
1063                 return;
1064
1065         /* lvds has a special fixed output timing. */
1066         if (intel_sdvo->is_lvds)
1067                 intel_sdvo_get_dtd_from_mode(&output_dtd,
1068                                              intel_sdvo->sdvo_lvds_fixed_mode);
1069         else
1070                 intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1071         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1072                 DRM_INFO("Setting output timings on %s failed\n",
1073                          SDVO_NAME(intel_sdvo));
1074
1075         /* Set the input timing to the screen. Assume always input 0. */
1076         if (!intel_sdvo_set_target_input(intel_sdvo))
1077                 return;
1078
1079         if (intel_sdvo->has_hdmi_monitor) {
1080                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI);
1081                 intel_sdvo_set_colorimetry(intel_sdvo,
1082                                            SDVO_COLORIMETRY_RGB256);
1083                 intel_sdvo_set_avi_infoframe(intel_sdvo);
1084         } else
1085                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);
1086
1087         if (intel_sdvo->is_tv &&
1088             !intel_sdvo_set_tv_format(intel_sdvo))
1089                 return;
1090
1091         /* We have tried to get input timing in mode_fixup, and filled into
1092          * adjusted_mode.
1093          */
1094         intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
1095         if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd))
1096                 DRM_INFO("Setting input timings on %s failed\n",
1097                          SDVO_NAME(intel_sdvo));
1098
1099         switch (pixel_multiplier) {
1100         default:
1101         case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break;
1102         case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break;
1103         case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break;
1104         }
1105         if (!intel_sdvo_set_clock_rate_mult(intel_sdvo, rate))
1106                 return;
1107
1108         /* Set the SDVO control regs. */
1109         if (INTEL_INFO(dev)->gen >= 4) {
1110                 /* The real mode polarity is set by the SDVO commands, using
1111                  * struct intel_sdvo_dtd. */
1112                 sdvox = SDVO_VSYNC_ACTIVE_HIGH | SDVO_HSYNC_ACTIVE_HIGH;
1113                 if (intel_sdvo->is_hdmi)
1114                         sdvox |= intel_sdvo->color_range;
1115                 if (INTEL_INFO(dev)->gen < 5)
1116                         sdvox |= SDVO_BORDER_ENABLE;
1117         } else {
1118                 sdvox = I915_READ(intel_sdvo->sdvo_reg);
1119                 switch (intel_sdvo->sdvo_reg) {
1120                 case SDVOB:
1121                         sdvox &= SDVOB_PRESERVE_MASK;
1122                         break;
1123                 case SDVOC:
1124                         sdvox &= SDVOC_PRESERVE_MASK;
1125                         break;
1126                 }
1127                 sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
1128         }
1129
1130         if (INTEL_PCH_TYPE(dev) >= PCH_CPT)
1131                 sdvox |= TRANSCODER_CPT(intel_crtc->pipe);
1132         else
1133                 sdvox |= TRANSCODER(intel_crtc->pipe);
1134
1135         if (intel_sdvo->has_hdmi_audio)
1136                 sdvox |= SDVO_AUDIO_ENABLE;
1137
1138         if (INTEL_INFO(dev)->gen >= 4) {
1139                 /* done in crtc_mode_set as the dpll_md reg must be written early */
1140         } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
1141                 /* done in crtc_mode_set as it lives inside the dpll register */
1142         } else {
1143                 sdvox |= (pixel_multiplier - 1) << SDVO_PORT_MULTIPLY_SHIFT;
1144         }
1145
1146         if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL &&
1147             INTEL_INFO(dev)->gen < 5)
1148                 sdvox |= SDVO_STALL_SELECT;
1149         intel_sdvo_write_sdvox(intel_sdvo, sdvox);
1150 }
1151
1152 static bool intel_sdvo_connector_get_hw_state(struct intel_connector *connector)
1153 {
1154         struct intel_sdvo_connector *intel_sdvo_connector =
1155                 to_intel_sdvo_connector(&connector->base);
1156         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(&connector->base);
1157         u16 active_outputs;
1158
1159         intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
1160
1161         if (active_outputs & intel_sdvo_connector->output_flag)
1162                 return true;
1163         else
1164                 return false;
1165 }
1166
1167 static bool intel_sdvo_get_hw_state(struct intel_encoder *encoder,
1168                                     enum pipe *pipe)
1169 {
1170         struct drm_device *dev = encoder->base.dev;
1171         struct drm_i915_private *dev_priv = dev->dev_private;
1172         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1173         u32 tmp;
1174
1175         tmp = I915_READ(intel_sdvo->sdvo_reg);
1176
1177         if (!(tmp & SDVO_ENABLE))
1178                 return false;
1179
1180         if (HAS_PCH_CPT(dev))
1181                 *pipe = PORT_TO_PIPE_CPT(tmp);
1182         else
1183                 *pipe = PORT_TO_PIPE(tmp);
1184
1185         return true;
1186 }
1187
1188 static void intel_disable_sdvo(struct intel_encoder *encoder)
1189 {
1190         struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
1191         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1192         u32 temp;
1193
1194         intel_sdvo_set_active_outputs(intel_sdvo, 0);
1195         if (0)
1196                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1197                                                    DRM_MODE_DPMS_OFF);
1198
1199         temp = I915_READ(intel_sdvo->sdvo_reg);
1200         if ((temp & SDVO_ENABLE) != 0) {
1201                 intel_sdvo_write_sdvox(intel_sdvo, temp & ~SDVO_ENABLE);
1202         }
1203 }
1204
1205 static void intel_enable_sdvo(struct intel_encoder *encoder)
1206 {
1207         struct drm_device *dev = encoder->base.dev;
1208         struct drm_i915_private *dev_priv = dev->dev_private;
1209         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1210         struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
1211         u32 temp;
1212         bool input1, input2;
1213         int i;
1214         u8 status;
1215
1216         temp = I915_READ(intel_sdvo->sdvo_reg);
1217         if ((temp & SDVO_ENABLE) == 0)
1218                 intel_sdvo_write_sdvox(intel_sdvo, temp | SDVO_ENABLE);
1219         for (i = 0; i < 2; i++)
1220                 intel_wait_for_vblank(dev, intel_crtc->pipe);
1221
1222         status = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2);
1223         /* Warn if the device reported failure to sync.
1224          * A lot of SDVO devices fail to notify of sync, but it's
1225          * a given it the status is a success, we succeeded.
1226          */
1227         if (status == SDVO_CMD_STATUS_SUCCESS && !input1) {
1228                 DRM_DEBUG_KMS("First %s output reported failure to "
1229                                 "sync\n", SDVO_NAME(intel_sdvo));
1230         }
1231
1232         if (0)
1233                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1234                                                    DRM_MODE_DPMS_ON);
1235         intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1236 }
1237
1238 static void intel_sdvo_dpms(struct drm_connector *connector, int mode)
1239 {
1240         struct drm_crtc *crtc;
1241         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1242
1243         /* dvo supports only 2 dpms states. */
1244         if (mode != DRM_MODE_DPMS_ON)
1245                 mode = DRM_MODE_DPMS_OFF;
1246
1247         if (mode == connector->dpms)
1248                 return;
1249
1250         connector->dpms = mode;
1251
1252         /* Only need to change hw state when actually enabled */
1253         crtc = intel_sdvo->base.base.crtc;
1254         if (!crtc) {
1255                 intel_sdvo->base.connectors_active = false;
1256                 return;
1257         }
1258
1259         if (mode != DRM_MODE_DPMS_ON) {
1260                 intel_sdvo_set_active_outputs(intel_sdvo, 0);
1261                 if (0)
1262                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1263
1264                 intel_sdvo->base.connectors_active = false;
1265
1266                 intel_crtc_update_dpms(crtc);
1267         } else {
1268                 intel_sdvo->base.connectors_active = true;
1269
1270                 intel_crtc_update_dpms(crtc);
1271
1272                 if (0)
1273                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1274                 intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1275         }
1276
1277         intel_modeset_check_state(connector->dev);
1278 }
1279
1280 static int intel_sdvo_mode_valid(struct drm_connector *connector,
1281                                  struct drm_display_mode *mode)
1282 {
1283         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1284
1285         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
1286                 return MODE_NO_DBLESCAN;
1287
1288         if (intel_sdvo->pixel_clock_min > mode->clock)
1289                 return MODE_CLOCK_LOW;
1290
1291         if (intel_sdvo->pixel_clock_max < mode->clock)
1292                 return MODE_CLOCK_HIGH;
1293
1294         if (intel_sdvo->is_lvds) {
1295                 if (mode->hdisplay > intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
1296                         return MODE_PANEL;
1297
1298                 if (mode->vdisplay > intel_sdvo->sdvo_lvds_fixed_mode->vdisplay)
1299                         return MODE_PANEL;
1300         }
1301
1302         return MODE_OK;
1303 }
1304
1305 static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct intel_sdvo_caps *caps)
1306 {
1307         BUILD_BUG_ON(sizeof(*caps) != 8);
1308         if (!intel_sdvo_get_value(intel_sdvo,
1309                                   SDVO_CMD_GET_DEVICE_CAPS,
1310                                   caps, sizeof(*caps)))
1311                 return false;
1312
1313         DRM_DEBUG_KMS("SDVO capabilities:\n"
1314                       "  vendor_id: %d\n"
1315                       "  device_id: %d\n"
1316                       "  device_rev_id: %d\n"
1317                       "  sdvo_version_major: %d\n"
1318                       "  sdvo_version_minor: %d\n"
1319                       "  sdvo_inputs_mask: %d\n"
1320                       "  smooth_scaling: %d\n"
1321                       "  sharp_scaling: %d\n"
1322                       "  up_scaling: %d\n"
1323                       "  down_scaling: %d\n"
1324                       "  stall_support: %d\n"
1325                       "  output_flags: %d\n",
1326                       caps->vendor_id,
1327                       caps->device_id,
1328                       caps->device_rev_id,
1329                       caps->sdvo_version_major,
1330                       caps->sdvo_version_minor,
1331                       caps->sdvo_inputs_mask,
1332                       caps->smooth_scaling,
1333                       caps->sharp_scaling,
1334                       caps->up_scaling,
1335                       caps->down_scaling,
1336                       caps->stall_support,
1337                       caps->output_flags);
1338
1339         return true;
1340 }
1341
1342 static uint16_t intel_sdvo_get_hotplug_support(struct intel_sdvo *intel_sdvo)
1343 {
1344         struct drm_device *dev = intel_sdvo->base.base.dev;
1345         uint16_t hotplug;
1346
1347         /* HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise
1348          * on the line. */
1349         if (IS_I945G(dev) || IS_I945GM(dev))
1350                 return 0;
1351
1352         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
1353                                         &hotplug, sizeof(hotplug)))
1354                 return 0;
1355
1356         return hotplug;
1357 }
1358
1359 static void intel_sdvo_enable_hotplug(struct intel_encoder *encoder)
1360 {
1361         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1362
1363         intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG,
1364                         &intel_sdvo->hotplug_active, 2);
1365 }
1366
1367 static bool
1368 intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
1369 {
1370         /* Is there more than one type of output? */
1371         return hweight16(intel_sdvo->caps.output_flags) > 1;
1372 }
1373
1374 static struct edid *
1375 intel_sdvo_get_edid(struct drm_connector *connector)
1376 {
1377         struct intel_sdvo *sdvo = intel_attached_sdvo(connector);
1378         return drm_get_edid(connector, &sdvo->ddc);
1379 }
1380
1381 /* Mac mini hack -- use the same DDC as the analog connector */
1382 static struct edid *
1383 intel_sdvo_get_analog_edid(struct drm_connector *connector)
1384 {
1385         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1386
1387         return drm_get_edid(connector,
1388                             intel_gmbus_get_adapter(dev_priv,
1389                                                     dev_priv->crt_ddc_pin));
1390 }
1391
1392 static enum drm_connector_status
1393 intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
1394 {
1395         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1396         enum drm_connector_status status;
1397         struct edid *edid;
1398
1399         edid = intel_sdvo_get_edid(connector);
1400
1401         if (edid == NULL && intel_sdvo_multifunc_encoder(intel_sdvo)) {
1402                 u8 ddc, saved_ddc = intel_sdvo->ddc_bus;
1403
1404                 /*
1405                  * Don't use the 1 as the argument of DDC bus switch to get
1406                  * the EDID. It is used for SDVO SPD ROM.
1407                  */
1408                 for (ddc = intel_sdvo->ddc_bus >> 1; ddc > 1; ddc >>= 1) {
1409                         intel_sdvo->ddc_bus = ddc;
1410                         edid = intel_sdvo_get_edid(connector);
1411                         if (edid)
1412                                 break;
1413                 }
1414                 /*
1415                  * If we found the EDID on the other bus,
1416                  * assume that is the correct DDC bus.
1417                  */
1418                 if (edid == NULL)
1419                         intel_sdvo->ddc_bus = saved_ddc;
1420         }
1421
1422         /*
1423          * When there is no edid and no monitor is connected with VGA
1424          * port, try to use the CRT ddc to read the EDID for DVI-connector.
1425          */
1426         if (edid == NULL)
1427                 edid = intel_sdvo_get_analog_edid(connector);
1428
1429         status = connector_status_unknown;
1430         if (edid != NULL) {
1431                 /* DDC bus is shared, match EDID to connector type */
1432                 if (edid->input & DRM_EDID_INPUT_DIGITAL) {
1433                         status = connector_status_connected;
1434                         if (intel_sdvo->is_hdmi) {
1435                                 intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
1436                                 intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
1437                         }
1438                 } else
1439                         status = connector_status_disconnected;
1440                 kfree(edid);
1441         }
1442
1443         if (status == connector_status_connected) {
1444                 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1445                 if (intel_sdvo_connector->force_audio != HDMI_AUDIO_AUTO)
1446                         intel_sdvo->has_hdmi_audio = (intel_sdvo_connector->force_audio == HDMI_AUDIO_ON);
1447         }
1448
1449         return status;
1450 }
1451
1452 static bool
1453 intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
1454                                   struct edid *edid)
1455 {
1456         bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
1457         bool connector_is_digital = !!IS_DIGITAL(sdvo);
1458
1459         DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n",
1460                       connector_is_digital, monitor_is_digital);
1461         return connector_is_digital == monitor_is_digital;
1462 }
1463
1464 static enum drm_connector_status
1465 intel_sdvo_detect(struct drm_connector *connector, bool force)
1466 {
1467         uint16_t response;
1468         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1469         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1470         enum drm_connector_status ret;
1471
1472         if (!intel_sdvo_write_cmd(intel_sdvo,
1473                                   SDVO_CMD_GET_ATTACHED_DISPLAYS, NULL, 0))
1474                 return connector_status_unknown;
1475
1476         /* add 30ms delay when the output type might be TV */
1477         if (intel_sdvo->caps.output_flags & SDVO_TV_MASK)
1478                 msleep(30);
1479
1480         if (!intel_sdvo_read_response(intel_sdvo, &response, 2))
1481                 return connector_status_unknown;
1482
1483         DRM_DEBUG_KMS("SDVO response %d %d [%x]\n",
1484                       response & 0xff, response >> 8,
1485                       intel_sdvo_connector->output_flag);
1486
1487         if (response == 0)
1488                 return connector_status_disconnected;
1489
1490         intel_sdvo->attached_output = response;
1491
1492         intel_sdvo->has_hdmi_monitor = false;
1493         intel_sdvo->has_hdmi_audio = false;
1494
1495         if ((intel_sdvo_connector->output_flag & response) == 0)
1496                 ret = connector_status_disconnected;
1497         else if (IS_TMDS(intel_sdvo_connector))
1498                 ret = intel_sdvo_tmds_sink_detect(connector);
1499         else {
1500                 struct edid *edid;
1501
1502                 /* if we have an edid check it matches the connection */
1503                 edid = intel_sdvo_get_edid(connector);
1504                 if (edid == NULL)
1505                         edid = intel_sdvo_get_analog_edid(connector);
1506                 if (edid != NULL) {
1507                         if (intel_sdvo_connector_matches_edid(intel_sdvo_connector,
1508                                                               edid))
1509                                 ret = connector_status_connected;
1510                         else
1511                                 ret = connector_status_disconnected;
1512
1513                         kfree(edid);
1514                 } else
1515                         ret = connector_status_connected;
1516         }
1517
1518         /* May update encoder flag for like clock for SDVO TV, etc.*/
1519         if (ret == connector_status_connected) {
1520                 intel_sdvo->is_tv = false;
1521                 intel_sdvo->is_lvds = false;
1522                 intel_sdvo->base.needs_tv_clock = false;
1523
1524                 if (response & SDVO_TV_MASK) {
1525                         intel_sdvo->is_tv = true;
1526                         intel_sdvo->base.needs_tv_clock = true;
1527                 }
1528                 if (response & SDVO_LVDS_MASK)
1529                         intel_sdvo->is_lvds = intel_sdvo->sdvo_lvds_fixed_mode != NULL;
1530         }
1531
1532         return ret;
1533 }
1534
1535 static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
1536 {
1537         struct edid *edid;
1538
1539         /* set the bus switch and get the modes */
1540         edid = intel_sdvo_get_edid(connector);
1541
1542         /*
1543          * Mac mini hack.  On this device, the DVI-I connector shares one DDC
1544          * link between analog and digital outputs. So, if the regular SDVO
1545          * DDC fails, check to see if the analog output is disconnected, in
1546          * which case we'll look there for the digital DDC data.
1547          */
1548         if (edid == NULL)
1549                 edid = intel_sdvo_get_analog_edid(connector);
1550
1551         if (edid != NULL) {
1552                 if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector),
1553                                                       edid)) {
1554                         drm_mode_connector_update_edid_property(connector, edid);
1555                         drm_add_edid_modes(connector, edid);
1556                 }
1557
1558                 kfree(edid);
1559         }
1560 }
1561
1562 /*
1563  * Set of SDVO TV modes.
1564  * Note!  This is in reply order (see loop in get_tv_modes).
1565  * XXX: all 60Hz refresh?
1566  */
1567 static const struct drm_display_mode sdvo_tv_modes[] = {
1568         { DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 5815, 320, 321, 384,
1569                    416, 0, 200, 201, 232, 233, 0,
1570                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1571         { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 6814, 320, 321, 384,
1572                    416, 0, 240, 241, 272, 273, 0,
1573                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1574         { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 9910, 400, 401, 464,
1575                    496, 0, 300, 301, 332, 333, 0,
1576                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1577         { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 16913, 640, 641, 704,
1578                    736, 0, 350, 351, 382, 383, 0,
1579                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1580         { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 19121, 640, 641, 704,
1581                    736, 0, 400, 401, 432, 433, 0,
1582                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1583         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 22654, 640, 641, 704,
1584                    736, 0, 480, 481, 512, 513, 0,
1585                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1586         { DRM_MODE("704x480", DRM_MODE_TYPE_DRIVER, 24624, 704, 705, 768,
1587                    800, 0, 480, 481, 512, 513, 0,
1588                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1589         { DRM_MODE("704x576", DRM_MODE_TYPE_DRIVER, 29232, 704, 705, 768,
1590                    800, 0, 576, 577, 608, 609, 0,
1591                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1592         { DRM_MODE("720x350", DRM_MODE_TYPE_DRIVER, 18751, 720, 721, 784,
1593                    816, 0, 350, 351, 382, 383, 0,
1594                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1595         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 21199, 720, 721, 784,
1596                    816, 0, 400, 401, 432, 433, 0,
1597                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1598         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 25116, 720, 721, 784,
1599                    816, 0, 480, 481, 512, 513, 0,
1600                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1601         { DRM_MODE("720x540", DRM_MODE_TYPE_DRIVER, 28054, 720, 721, 784,
1602                    816, 0, 540, 541, 572, 573, 0,
1603                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1604         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 29816, 720, 721, 784,
1605                    816, 0, 576, 577, 608, 609, 0,
1606                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1607         { DRM_MODE("768x576", DRM_MODE_TYPE_DRIVER, 31570, 768, 769, 832,
1608                    864, 0, 576, 577, 608, 609, 0,
1609                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1610         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 34030, 800, 801, 864,
1611                    896, 0, 600, 601, 632, 633, 0,
1612                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1613         { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 36581, 832, 833, 896,
1614                    928, 0, 624, 625, 656, 657, 0,
1615                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1616         { DRM_MODE("920x766", DRM_MODE_TYPE_DRIVER, 48707, 920, 921, 984,
1617                    1016, 0, 766, 767, 798, 799, 0,
1618                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1619         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 53827, 1024, 1025, 1088,
1620                    1120, 0, 768, 769, 800, 801, 0,
1621                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1622         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 87265, 1280, 1281, 1344,
1623                    1376, 0, 1024, 1025, 1056, 1057, 0,
1624                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1625 };
1626
1627 static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
1628 {
1629         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1630         struct intel_sdvo_sdtv_resolution_request tv_res;
1631         uint32_t reply = 0, format_map = 0;
1632         int i;
1633
1634         /* Read the list of supported input resolutions for the selected TV
1635          * format.
1636          */
1637         format_map = 1 << intel_sdvo->tv_format_index;
1638         memcpy(&tv_res, &format_map,
1639                min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request)));
1640
1641         if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo->attached_output))
1642                 return;
1643
1644         BUILD_BUG_ON(sizeof(tv_res) != 3);
1645         if (!intel_sdvo_write_cmd(intel_sdvo,
1646                                   SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT,
1647                                   &tv_res, sizeof(tv_res)))
1648                 return;
1649         if (!intel_sdvo_read_response(intel_sdvo, &reply, 3))
1650                 return;
1651
1652         for (i = 0; i < ARRAY_SIZE(sdvo_tv_modes); i++)
1653                 if (reply & (1 << i)) {
1654                         struct drm_display_mode *nmode;
1655                         nmode = drm_mode_duplicate(connector->dev,
1656                                                    &sdvo_tv_modes[i]);
1657                         if (nmode)
1658                                 drm_mode_probed_add(connector, nmode);
1659                 }
1660 }
1661
1662 static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
1663 {
1664         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1665         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1666         struct drm_display_mode *newmode;
1667
1668         /*
1669          * Attempt to get the mode list from DDC.
1670          * Assume that the preferred modes are
1671          * arranged in priority order.
1672          */
1673         intel_ddc_get_modes(connector, intel_sdvo->i2c);
1674         if (list_empty(&connector->probed_modes) == false)
1675                 goto end;
1676
1677         /* Fetch modes from VBT */
1678         if (dev_priv->sdvo_lvds_vbt_mode != NULL) {
1679                 newmode = drm_mode_duplicate(connector->dev,
1680                                              dev_priv->sdvo_lvds_vbt_mode);
1681                 if (newmode != NULL) {
1682                         /* Guarantee the mode is preferred */
1683                         newmode->type = (DRM_MODE_TYPE_PREFERRED |
1684                                          DRM_MODE_TYPE_DRIVER);
1685                         drm_mode_probed_add(connector, newmode);
1686                 }
1687         }
1688
1689 end:
1690         list_for_each_entry(newmode, &connector->probed_modes, head) {
1691                 if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
1692                         intel_sdvo->sdvo_lvds_fixed_mode =
1693                                 drm_mode_duplicate(connector->dev, newmode);
1694
1695                         intel_sdvo->is_lvds = true;
1696                         break;
1697                 }
1698         }
1699
1700 }
1701
1702 static int intel_sdvo_get_modes(struct drm_connector *connector)
1703 {
1704         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1705
1706         if (IS_TV(intel_sdvo_connector))
1707                 intel_sdvo_get_tv_modes(connector);
1708         else if (IS_LVDS(intel_sdvo_connector))
1709                 intel_sdvo_get_lvds_modes(connector);
1710         else
1711                 intel_sdvo_get_ddc_modes(connector);
1712
1713         return !list_empty(&connector->probed_modes);
1714 }
1715
1716 static void
1717 intel_sdvo_destroy_enhance_property(struct drm_connector *connector)
1718 {
1719         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1720         struct drm_device *dev = connector->dev;
1721
1722         if (intel_sdvo_connector->left)
1723                 drm_property_destroy(dev, intel_sdvo_connector->left);
1724         if (intel_sdvo_connector->right)
1725                 drm_property_destroy(dev, intel_sdvo_connector->right);
1726         if (intel_sdvo_connector->top)
1727                 drm_property_destroy(dev, intel_sdvo_connector->top);
1728         if (intel_sdvo_connector->bottom)
1729                 drm_property_destroy(dev, intel_sdvo_connector->bottom);
1730         if (intel_sdvo_connector->hpos)
1731                 drm_property_destroy(dev, intel_sdvo_connector->hpos);
1732         if (intel_sdvo_connector->vpos)
1733                 drm_property_destroy(dev, intel_sdvo_connector->vpos);
1734         if (intel_sdvo_connector->saturation)
1735                 drm_property_destroy(dev, intel_sdvo_connector->saturation);
1736         if (intel_sdvo_connector->contrast)
1737                 drm_property_destroy(dev, intel_sdvo_connector->contrast);
1738         if (intel_sdvo_connector->hue)
1739                 drm_property_destroy(dev, intel_sdvo_connector->hue);
1740         if (intel_sdvo_connector->sharpness)
1741                 drm_property_destroy(dev, intel_sdvo_connector->sharpness);
1742         if (intel_sdvo_connector->flicker_filter)
1743                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter);
1744         if (intel_sdvo_connector->flicker_filter_2d)
1745                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_2d);
1746         if (intel_sdvo_connector->flicker_filter_adaptive)
1747                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_adaptive);
1748         if (intel_sdvo_connector->tv_luma_filter)
1749                 drm_property_destroy(dev, intel_sdvo_connector->tv_luma_filter);
1750         if (intel_sdvo_connector->tv_chroma_filter)
1751                 drm_property_destroy(dev, intel_sdvo_connector->tv_chroma_filter);
1752         if (intel_sdvo_connector->dot_crawl)
1753                 drm_property_destroy(dev, intel_sdvo_connector->dot_crawl);
1754         if (intel_sdvo_connector->brightness)
1755                 drm_property_destroy(dev, intel_sdvo_connector->brightness);
1756 }
1757
1758 static void intel_sdvo_destroy(struct drm_connector *connector)
1759 {
1760         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1761
1762         if (intel_sdvo_connector->tv_format)
1763                 drm_property_destroy(connector->dev,
1764                                      intel_sdvo_connector->tv_format);
1765
1766         intel_sdvo_destroy_enhance_property(connector);
1767         drm_sysfs_connector_remove(connector);
1768         drm_connector_cleanup(connector);
1769         kfree(connector);
1770 }
1771
1772 static bool intel_sdvo_detect_hdmi_audio(struct drm_connector *connector)
1773 {
1774         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1775         struct edid *edid;
1776         bool has_audio = false;
1777
1778         if (!intel_sdvo->is_hdmi)
1779                 return false;
1780
1781         edid = intel_sdvo_get_edid(connector);
1782         if (edid != NULL && edid->input & DRM_EDID_INPUT_DIGITAL)
1783                 has_audio = drm_detect_monitor_audio(edid);
1784         kfree(edid);
1785
1786         return has_audio;
1787 }
1788
1789 static int
1790 intel_sdvo_set_property(struct drm_connector *connector,
1791                         struct drm_property *property,
1792                         uint64_t val)
1793 {
1794         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1795         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1796         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1797         uint16_t temp_value;
1798         uint8_t cmd;
1799         int ret;
1800
1801         ret = drm_connector_property_set_value(connector, property, val);
1802         if (ret)
1803                 return ret;
1804
1805         if (property == dev_priv->force_audio_property) {
1806                 int i = val;
1807                 bool has_audio;
1808
1809                 if (i == intel_sdvo_connector->force_audio)
1810                         return 0;
1811
1812                 intel_sdvo_connector->force_audio = i;
1813
1814                 if (i == HDMI_AUDIO_AUTO)
1815                         has_audio = intel_sdvo_detect_hdmi_audio(connector);
1816                 else
1817                         has_audio = (i == HDMI_AUDIO_ON);
1818
1819                 if (has_audio == intel_sdvo->has_hdmi_audio)
1820                         return 0;
1821
1822                 intel_sdvo->has_hdmi_audio = has_audio;
1823                 goto done;
1824         }
1825
1826         if (property == dev_priv->broadcast_rgb_property) {
1827                 if (val == !!intel_sdvo->color_range)
1828                         return 0;
1829
1830                 intel_sdvo->color_range = val ? SDVO_COLOR_RANGE_16_235 : 0;
1831                 goto done;
1832         }
1833
1834 #define CHECK_PROPERTY(name, NAME) \
1835         if (intel_sdvo_connector->name == property) { \
1836                 if (intel_sdvo_connector->cur_##name == temp_value) return 0; \
1837                 if (intel_sdvo_connector->max_##name < temp_value) return -EINVAL; \
1838                 cmd = SDVO_CMD_SET_##NAME; \
1839                 intel_sdvo_connector->cur_##name = temp_value; \
1840                 goto set_value; \
1841         }
1842
1843         if (property == intel_sdvo_connector->tv_format) {
1844                 if (val >= TV_FORMAT_NUM)
1845                         return -EINVAL;
1846
1847                 if (intel_sdvo->tv_format_index ==
1848                     intel_sdvo_connector->tv_format_supported[val])
1849                         return 0;
1850
1851                 intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[val];
1852                 goto done;
1853         } else if (IS_TV_OR_LVDS(intel_sdvo_connector)) {
1854                 temp_value = val;
1855                 if (intel_sdvo_connector->left == property) {
1856                         drm_connector_property_set_value(connector,
1857                                                          intel_sdvo_connector->right, val);
1858                         if (intel_sdvo_connector->left_margin == temp_value)
1859                                 return 0;
1860
1861                         intel_sdvo_connector->left_margin = temp_value;
1862                         intel_sdvo_connector->right_margin = temp_value;
1863                         temp_value = intel_sdvo_connector->max_hscan -
1864                                 intel_sdvo_connector->left_margin;
1865                         cmd = SDVO_CMD_SET_OVERSCAN_H;
1866                         goto set_value;
1867                 } else if (intel_sdvo_connector->right == property) {
1868                         drm_connector_property_set_value(connector,
1869                                                          intel_sdvo_connector->left, val);
1870                         if (intel_sdvo_connector->right_margin == temp_value)
1871                                 return 0;
1872
1873                         intel_sdvo_connector->left_margin = temp_value;
1874                         intel_sdvo_connector->right_margin = temp_value;
1875                         temp_value = intel_sdvo_connector->max_hscan -
1876                                 intel_sdvo_connector->left_margin;
1877                         cmd = SDVO_CMD_SET_OVERSCAN_H;
1878                         goto set_value;
1879                 } else if (intel_sdvo_connector->top == property) {
1880                         drm_connector_property_set_value(connector,
1881                                                          intel_sdvo_connector->bottom, val);
1882                         if (intel_sdvo_connector->top_margin == temp_value)
1883                                 return 0;
1884
1885                         intel_sdvo_connector->top_margin = temp_value;
1886                         intel_sdvo_connector->bottom_margin = temp_value;
1887                         temp_value = intel_sdvo_connector->max_vscan -
1888                                 intel_sdvo_connector->top_margin;
1889                         cmd = SDVO_CMD_SET_OVERSCAN_V;
1890                         goto set_value;
1891                 } else if (intel_sdvo_connector->bottom == property) {
1892                         drm_connector_property_set_value(connector,
1893                                                          intel_sdvo_connector->top, val);
1894                         if (intel_sdvo_connector->bottom_margin == temp_value)
1895                                 return 0;
1896
1897                         intel_sdvo_connector->top_margin = temp_value;
1898                         intel_sdvo_connector->bottom_margin = temp_value;
1899                         temp_value = intel_sdvo_connector->max_vscan -
1900                                 intel_sdvo_connector->top_margin;
1901                         cmd = SDVO_CMD_SET_OVERSCAN_V;
1902                         goto set_value;
1903                 }
1904                 CHECK_PROPERTY(hpos, HPOS)
1905                 CHECK_PROPERTY(vpos, VPOS)
1906                 CHECK_PROPERTY(saturation, SATURATION)
1907                 CHECK_PROPERTY(contrast, CONTRAST)
1908                 CHECK_PROPERTY(hue, HUE)
1909                 CHECK_PROPERTY(brightness, BRIGHTNESS)
1910                 CHECK_PROPERTY(sharpness, SHARPNESS)
1911                 CHECK_PROPERTY(flicker_filter, FLICKER_FILTER)
1912                 CHECK_PROPERTY(flicker_filter_2d, FLICKER_FILTER_2D)
1913                 CHECK_PROPERTY(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE)
1914                 CHECK_PROPERTY(tv_chroma_filter, TV_CHROMA_FILTER)
1915                 CHECK_PROPERTY(tv_luma_filter, TV_LUMA_FILTER)
1916                 CHECK_PROPERTY(dot_crawl, DOT_CRAWL)
1917         }
1918
1919         return -EINVAL; /* unknown property */
1920
1921 set_value:
1922         if (!intel_sdvo_set_value(intel_sdvo, cmd, &temp_value, 2))
1923                 return -EIO;
1924
1925
1926 done:
1927         if (intel_sdvo->base.base.crtc) {
1928                 struct drm_crtc *crtc = intel_sdvo->base.base.crtc;
1929                 intel_set_mode(crtc, &crtc->mode,
1930                                crtc->x, crtc->y, crtc->fb);
1931         }
1932
1933         return 0;
1934 #undef CHECK_PROPERTY
1935 }
1936
1937 static const struct drm_encoder_helper_funcs intel_sdvo_helper_funcs = {
1938         .mode_fixup = intel_sdvo_mode_fixup,
1939         .mode_set = intel_sdvo_mode_set,
1940         .disable = intel_encoder_noop,
1941 };
1942
1943 static const struct drm_connector_funcs intel_sdvo_connector_funcs = {
1944         .dpms = intel_sdvo_dpms,
1945         .detect = intel_sdvo_detect,
1946         .fill_modes = drm_helper_probe_single_connector_modes,
1947         .set_property = intel_sdvo_set_property,
1948         .destroy = intel_sdvo_destroy,
1949 };
1950
1951 static const struct drm_connector_helper_funcs intel_sdvo_connector_helper_funcs = {
1952         .get_modes = intel_sdvo_get_modes,
1953         .mode_valid = intel_sdvo_mode_valid,
1954         .best_encoder = intel_best_encoder,
1955 };
1956
1957 static void intel_sdvo_enc_destroy(struct drm_encoder *encoder)
1958 {
1959         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
1960
1961         if (intel_sdvo->sdvo_lvds_fixed_mode != NULL)
1962                 drm_mode_destroy(encoder->dev,
1963                                  intel_sdvo->sdvo_lvds_fixed_mode);
1964
1965         i2c_del_adapter(&intel_sdvo->ddc);
1966         intel_encoder_destroy(encoder);
1967 }
1968
1969 static const struct drm_encoder_funcs intel_sdvo_enc_funcs = {
1970         .destroy = intel_sdvo_enc_destroy,
1971 };
1972
1973 static void
1974 intel_sdvo_guess_ddc_bus(struct intel_sdvo *sdvo)
1975 {
1976         uint16_t mask = 0;
1977         unsigned int num_bits;
1978
1979         /* Make a mask of outputs less than or equal to our own priority in the
1980          * list.
1981          */
1982         switch (sdvo->controlled_output) {
1983         case SDVO_OUTPUT_LVDS1:
1984                 mask |= SDVO_OUTPUT_LVDS1;
1985         case SDVO_OUTPUT_LVDS0:
1986                 mask |= SDVO_OUTPUT_LVDS0;
1987         case SDVO_OUTPUT_TMDS1:
1988                 mask |= SDVO_OUTPUT_TMDS1;
1989         case SDVO_OUTPUT_TMDS0:
1990                 mask |= SDVO_OUTPUT_TMDS0;
1991         case SDVO_OUTPUT_RGB1:
1992                 mask |= SDVO_OUTPUT_RGB1;
1993         case SDVO_OUTPUT_RGB0:
1994                 mask |= SDVO_OUTPUT_RGB0;
1995                 break;
1996         }
1997
1998         /* Count bits to find what number we are in the priority list. */
1999         mask &= sdvo->caps.output_flags;
2000         num_bits = hweight16(mask);
2001         /* If more than 3 outputs, default to DDC bus 3 for now. */
2002         if (num_bits > 3)
2003                 num_bits = 3;
2004
2005         /* Corresponds to SDVO_CONTROL_BUS_DDCx */
2006         sdvo->ddc_bus = 1 << num_bits;
2007 }
2008
2009 /**
2010  * Choose the appropriate DDC bus for control bus switch command for this
2011  * SDVO output based on the controlled output.
2012  *
2013  * DDC bus number assignment is in a priority order of RGB outputs, then TMDS
2014  * outputs, then LVDS outputs.
2015  */
2016 static void
2017 intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv,
2018                           struct intel_sdvo *sdvo, u32 reg)
2019 {
2020         struct sdvo_device_mapping *mapping;
2021
2022         if (sdvo->is_sdvob)
2023                 mapping = &(dev_priv->sdvo_mappings[0]);
2024         else
2025                 mapping = &(dev_priv->sdvo_mappings[1]);
2026
2027         if (mapping->initialized)
2028                 sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
2029         else
2030                 intel_sdvo_guess_ddc_bus(sdvo);
2031 }
2032
2033 static void
2034 intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
2035                           struct intel_sdvo *sdvo, u32 reg)
2036 {
2037         struct sdvo_device_mapping *mapping;
2038         u8 pin;
2039
2040         if (sdvo->is_sdvob)
2041                 mapping = &dev_priv->sdvo_mappings[0];
2042         else
2043                 mapping = &dev_priv->sdvo_mappings[1];
2044
2045         pin = GMBUS_PORT_DPB;
2046         if (mapping->initialized)
2047                 pin = mapping->i2c_pin;
2048
2049         if (intel_gmbus_is_port_valid(pin)) {
2050                 sdvo->i2c = intel_gmbus_get_adapter(dev_priv, pin);
2051                 intel_gmbus_set_speed(sdvo->i2c, GMBUS_RATE_1MHZ);
2052                 intel_gmbus_force_bit(sdvo->i2c, true);
2053         } else {
2054                 sdvo->i2c = intel_gmbus_get_adapter(dev_priv, GMBUS_PORT_DPB);
2055         }
2056 }
2057
2058 static bool
2059 intel_sdvo_is_hdmi_connector(struct intel_sdvo *intel_sdvo, int device)
2060 {
2061         return intel_sdvo_check_supp_encode(intel_sdvo);
2062 }
2063
2064 static u8
2065 intel_sdvo_get_slave_addr(struct drm_device *dev, struct intel_sdvo *sdvo)
2066 {
2067         struct drm_i915_private *dev_priv = dev->dev_private;
2068         struct sdvo_device_mapping *my_mapping, *other_mapping;
2069
2070         if (sdvo->is_sdvob) {
2071                 my_mapping = &dev_priv->sdvo_mappings[0];
2072                 other_mapping = &dev_priv->sdvo_mappings[1];
2073         } else {
2074                 my_mapping = &dev_priv->sdvo_mappings[1];
2075                 other_mapping = &dev_priv->sdvo_mappings[0];
2076         }
2077
2078         /* If the BIOS described our SDVO device, take advantage of it. */
2079         if (my_mapping->slave_addr)
2080                 return my_mapping->slave_addr;
2081
2082         /* If the BIOS only described a different SDVO device, use the
2083          * address that it isn't using.
2084          */
2085         if (other_mapping->slave_addr) {
2086                 if (other_mapping->slave_addr == 0x70)
2087                         return 0x72;
2088                 else
2089                         return 0x70;
2090         }
2091
2092         /* No SDVO device info is found for another DVO port,
2093          * so use mapping assumption we had before BIOS parsing.
2094          */
2095         if (sdvo->is_sdvob)
2096                 return 0x70;
2097         else
2098                 return 0x72;
2099 }
2100
2101 static void
2102 intel_sdvo_connector_init(struct intel_sdvo_connector *connector,
2103                           struct intel_sdvo *encoder)
2104 {
2105         drm_connector_init(encoder->base.base.dev,
2106                            &connector->base.base,
2107                            &intel_sdvo_connector_funcs,
2108                            connector->base.base.connector_type);
2109
2110         drm_connector_helper_add(&connector->base.base,
2111                                  &intel_sdvo_connector_helper_funcs);
2112
2113         connector->base.base.interlace_allowed = 1;
2114         connector->base.base.doublescan_allowed = 0;
2115         connector->base.base.display_info.subpixel_order = SubPixelHorizontalRGB;
2116         connector->base.get_hw_state = intel_sdvo_connector_get_hw_state;
2117
2118         intel_connector_attach_encoder(&connector->base, &encoder->base);
2119         drm_sysfs_connector_add(&connector->base.base);
2120 }
2121
2122 static void
2123 intel_sdvo_add_hdmi_properties(struct intel_sdvo_connector *connector)
2124 {
2125         struct drm_device *dev = connector->base.base.dev;
2126
2127         intel_attach_force_audio_property(&connector->base.base);
2128         if (INTEL_INFO(dev)->gen >= 4 && IS_MOBILE(dev))
2129                 intel_attach_broadcast_rgb_property(&connector->base.base);
2130 }
2131
2132 static bool
2133 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
2134 {
2135         struct drm_encoder *encoder = &intel_sdvo->base.base;
2136         struct drm_connector *connector;
2137         struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
2138         struct intel_connector *intel_connector;
2139         struct intel_sdvo_connector *intel_sdvo_connector;
2140
2141         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2142         if (!intel_sdvo_connector)
2143                 return false;
2144
2145         if (device == 0) {
2146                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS0;
2147                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS0;
2148         } else if (device == 1) {
2149                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS1;
2150                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS1;
2151         }
2152
2153         intel_connector = &intel_sdvo_connector->base;
2154         connector = &intel_connector->base;
2155         if (intel_sdvo_get_hotplug_support(intel_sdvo) &
2156                 intel_sdvo_connector->output_flag) {
2157                 connector->polled = DRM_CONNECTOR_POLL_HPD;
2158                 intel_sdvo->hotplug_active |= intel_sdvo_connector->output_flag;
2159                 /* Some SDVO devices have one-shot hotplug interrupts.
2160                  * Ensure that they get re-enabled when an interrupt happens.
2161                  */
2162                 intel_encoder->hot_plug = intel_sdvo_enable_hotplug;
2163                 intel_sdvo_enable_hotplug(intel_encoder);
2164         } else {
2165                 connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
2166         }
2167         encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
2168         connector->connector_type = DRM_MODE_CONNECTOR_DVID;
2169
2170         if (intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
2171                 connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
2172                 intel_sdvo->is_hdmi = true;
2173         }
2174         intel_sdvo->base.cloneable = true;
2175
2176         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2177         if (intel_sdvo->is_hdmi)
2178                 intel_sdvo_add_hdmi_properties(intel_sdvo_connector);
2179
2180         return true;
2181 }
2182
2183 static bool
2184 intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
2185 {
2186         struct drm_encoder *encoder = &intel_sdvo->base.base;
2187         struct drm_connector *connector;
2188         struct intel_connector *intel_connector;
2189         struct intel_sdvo_connector *intel_sdvo_connector;
2190
2191         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2192         if (!intel_sdvo_connector)
2193                 return false;
2194
2195         intel_connector = &intel_sdvo_connector->base;
2196         connector = &intel_connector->base;
2197         encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
2198         connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
2199
2200         intel_sdvo->controlled_output |= type;
2201         intel_sdvo_connector->output_flag = type;
2202
2203         intel_sdvo->is_tv = true;
2204         intel_sdvo->base.needs_tv_clock = true;
2205         intel_sdvo->base.cloneable = false;
2206
2207         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2208
2209         if (!intel_sdvo_tv_create_property(intel_sdvo, intel_sdvo_connector, type))
2210                 goto err;
2211
2212         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2213                 goto err;
2214
2215         return true;
2216
2217 err:
2218         intel_sdvo_destroy(connector);
2219         return false;
2220 }
2221
2222 static bool
2223 intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device)
2224 {
2225         struct drm_encoder *encoder = &intel_sdvo->base.base;
2226         struct drm_connector *connector;
2227         struct intel_connector *intel_connector;
2228         struct intel_sdvo_connector *intel_sdvo_connector;
2229
2230         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2231         if (!intel_sdvo_connector)
2232                 return false;
2233
2234         intel_connector = &intel_sdvo_connector->base;
2235         connector = &intel_connector->base;
2236         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
2237         encoder->encoder_type = DRM_MODE_ENCODER_DAC;
2238         connector->connector_type = DRM_MODE_CONNECTOR_VGA;
2239
2240         if (device == 0) {
2241                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB0;
2242                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB0;
2243         } else if (device == 1) {
2244                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB1;
2245                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1;
2246         }
2247
2248         intel_sdvo->base.cloneable = true;
2249
2250         intel_sdvo_connector_init(intel_sdvo_connector,
2251                                   intel_sdvo);
2252         return true;
2253 }
2254
2255 static bool
2256 intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
2257 {
2258         struct drm_encoder *encoder = &intel_sdvo->base.base;
2259         struct drm_connector *connector;
2260         struct intel_connector *intel_connector;
2261         struct intel_sdvo_connector *intel_sdvo_connector;
2262
2263         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2264         if (!intel_sdvo_connector)
2265                 return false;
2266
2267         intel_connector = &intel_sdvo_connector->base;
2268         connector = &intel_connector->base;
2269         encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
2270         connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
2271
2272         if (device == 0) {
2273                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS0;
2274                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS0;
2275         } else if (device == 1) {
2276                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS1;
2277                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1;
2278         }
2279
2280         /* SDVO LVDS is cloneable because the SDVO encoder does the upscaling,
2281          * as opposed to native LVDS, where we upscale with the panel-fitter
2282          * (and hence only the native LVDS resolution could be cloned). */
2283         intel_sdvo->base.cloneable = true;
2284
2285         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2286         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2287                 goto err;
2288
2289         return true;
2290
2291 err:
2292         intel_sdvo_destroy(connector);
2293         return false;
2294 }
2295
2296 static bool
2297 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
2298 {
2299         intel_sdvo->is_tv = false;
2300         intel_sdvo->base.needs_tv_clock = false;
2301         intel_sdvo->is_lvds = false;
2302
2303         /* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
2304
2305         if (flags & SDVO_OUTPUT_TMDS0)
2306                 if (!intel_sdvo_dvi_init(intel_sdvo, 0))
2307                         return false;
2308
2309         if ((flags & SDVO_TMDS_MASK) == SDVO_TMDS_MASK)
2310                 if (!intel_sdvo_dvi_init(intel_sdvo, 1))
2311                         return false;
2312
2313         /* TV has no XXX1 function block */
2314         if (flags & SDVO_OUTPUT_SVID0)
2315                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_SVID0))
2316                         return false;
2317
2318         if (flags & SDVO_OUTPUT_CVBS0)
2319                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_CVBS0))
2320                         return false;
2321
2322         if (flags & SDVO_OUTPUT_YPRPB0)
2323                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_YPRPB0))
2324                         return false;
2325
2326         if (flags & SDVO_OUTPUT_RGB0)
2327                 if (!intel_sdvo_analog_init(intel_sdvo, 0))
2328                         return false;
2329
2330         if ((flags & SDVO_RGB_MASK) == SDVO_RGB_MASK)
2331                 if (!intel_sdvo_analog_init(intel_sdvo, 1))
2332                         return false;
2333
2334         if (flags & SDVO_OUTPUT_LVDS0)
2335                 if (!intel_sdvo_lvds_init(intel_sdvo, 0))
2336                         return false;
2337
2338         if ((flags & SDVO_LVDS_MASK) == SDVO_LVDS_MASK)
2339                 if (!intel_sdvo_lvds_init(intel_sdvo, 1))
2340                         return false;
2341
2342         if ((flags & SDVO_OUTPUT_MASK) == 0) {
2343                 unsigned char bytes[2];
2344
2345                 intel_sdvo->controlled_output = 0;
2346                 memcpy(bytes, &intel_sdvo->caps.output_flags, 2);
2347                 DRM_DEBUG_KMS("%s: Unknown SDVO output type (0x%02x%02x)\n",
2348                               SDVO_NAME(intel_sdvo),
2349                               bytes[0], bytes[1]);
2350                 return false;
2351         }
2352         intel_sdvo->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
2353
2354         return true;
2355 }
2356
2357 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
2358                                           struct intel_sdvo_connector *intel_sdvo_connector,
2359                                           int type)
2360 {
2361         struct drm_device *dev = intel_sdvo->base.base.dev;
2362         struct intel_sdvo_tv_format format;
2363         uint32_t format_map, i;
2364
2365         if (!intel_sdvo_set_target_output(intel_sdvo, type))
2366                 return false;
2367
2368         BUILD_BUG_ON(sizeof(format) != 6);
2369         if (!intel_sdvo_get_value(intel_sdvo,
2370                                   SDVO_CMD_GET_SUPPORTED_TV_FORMATS,
2371                                   &format, sizeof(format)))
2372                 return false;
2373
2374         memcpy(&format_map, &format, min(sizeof(format_map), sizeof(format)));
2375
2376         if (format_map == 0)
2377                 return false;
2378
2379         intel_sdvo_connector->format_supported_num = 0;
2380         for (i = 0 ; i < TV_FORMAT_NUM; i++)
2381                 if (format_map & (1 << i))
2382                         intel_sdvo_connector->tv_format_supported[intel_sdvo_connector->format_supported_num++] = i;
2383
2384
2385         intel_sdvo_connector->tv_format =
2386                         drm_property_create(dev, DRM_MODE_PROP_ENUM,
2387                                             "mode", intel_sdvo_connector->format_supported_num);
2388         if (!intel_sdvo_connector->tv_format)
2389                 return false;
2390
2391         for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
2392                 drm_property_add_enum(
2393                                 intel_sdvo_connector->tv_format, i,
2394                                 i, tv_format_names[intel_sdvo_connector->tv_format_supported[i]]);
2395
2396         intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[0];
2397         drm_connector_attach_property(&intel_sdvo_connector->base.base,
2398                                       intel_sdvo_connector->tv_format, 0);
2399         return true;
2400
2401 }
2402
2403 #define ENHANCEMENT(name, NAME) do { \
2404         if (enhancements.name) { \
2405                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_MAX_##NAME, &data_value, 4) || \
2406                     !intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_##NAME, &response, 2)) \
2407                         return false; \
2408                 intel_sdvo_connector->max_##name = data_value[0]; \
2409                 intel_sdvo_connector->cur_##name = response; \
2410                 intel_sdvo_connector->name = \
2411                         drm_property_create_range(dev, 0, #name, 0, data_value[0]); \
2412                 if (!intel_sdvo_connector->name) return false; \
2413                 drm_connector_attach_property(connector, \
2414                                               intel_sdvo_connector->name, \
2415                                               intel_sdvo_connector->cur_##name); \
2416                 DRM_DEBUG_KMS(#name ": max %d, default %d, current %d\n", \
2417                               data_value[0], data_value[1], response); \
2418         } \
2419 } while (0)
2420
2421 static bool
2422 intel_sdvo_create_enhance_property_tv(struct intel_sdvo *intel_sdvo,
2423                                       struct intel_sdvo_connector *intel_sdvo_connector,
2424                                       struct intel_sdvo_enhancements_reply enhancements)
2425 {
2426         struct drm_device *dev = intel_sdvo->base.base.dev;
2427         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2428         uint16_t response, data_value[2];
2429
2430         /* when horizontal overscan is supported, Add the left/right  property */
2431         if (enhancements.overscan_h) {
2432                 if (!intel_sdvo_get_value(intel_sdvo,
2433                                           SDVO_CMD_GET_MAX_OVERSCAN_H,
2434                                           &data_value, 4))
2435                         return false;
2436
2437                 if (!intel_sdvo_get_value(intel_sdvo,
2438                                           SDVO_CMD_GET_OVERSCAN_H,
2439                                           &response, 2))
2440                         return false;
2441
2442                 intel_sdvo_connector->max_hscan = data_value[0];
2443                 intel_sdvo_connector->left_margin = data_value[0] - response;
2444                 intel_sdvo_connector->right_margin = intel_sdvo_connector->left_margin;
2445                 intel_sdvo_connector->left =
2446                         drm_property_create_range(dev, 0, "left_margin", 0, data_value[0]);
2447                 if (!intel_sdvo_connector->left)
2448                         return false;
2449
2450                 drm_connector_attach_property(connector,
2451                                               intel_sdvo_connector->left,
2452                                               intel_sdvo_connector->left_margin);
2453
2454                 intel_sdvo_connector->right =
2455                         drm_property_create_range(dev, 0, "right_margin", 0, data_value[0]);
2456                 if (!intel_sdvo_connector->right)
2457                         return false;
2458
2459                 drm_connector_attach_property(connector,
2460                                               intel_sdvo_connector->right,
2461                                               intel_sdvo_connector->right_margin);
2462                 DRM_DEBUG_KMS("h_overscan: max %d, "
2463                               "default %d, current %d\n",
2464                               data_value[0], data_value[1], response);
2465         }
2466
2467         if (enhancements.overscan_v) {
2468                 if (!intel_sdvo_get_value(intel_sdvo,
2469                                           SDVO_CMD_GET_MAX_OVERSCAN_V,
2470                                           &data_value, 4))
2471                         return false;
2472
2473                 if (!intel_sdvo_get_value(intel_sdvo,
2474                                           SDVO_CMD_GET_OVERSCAN_V,
2475                                           &response, 2))
2476                         return false;
2477
2478                 intel_sdvo_connector->max_vscan = data_value[0];
2479                 intel_sdvo_connector->top_margin = data_value[0] - response;
2480                 intel_sdvo_connector->bottom_margin = intel_sdvo_connector->top_margin;
2481                 intel_sdvo_connector->top =
2482                         drm_property_create_range(dev, 0,
2483                                             "top_margin", 0, data_value[0]);
2484                 if (!intel_sdvo_connector->top)
2485                         return false;
2486
2487                 drm_connector_attach_property(connector,
2488                                               intel_sdvo_connector->top,
2489                                               intel_sdvo_connector->top_margin);
2490
2491                 intel_sdvo_connector->bottom =
2492                         drm_property_create_range(dev, 0,
2493                                             "bottom_margin", 0, data_value[0]);
2494                 if (!intel_sdvo_connector->bottom)
2495                         return false;
2496
2497                 drm_connector_attach_property(connector,
2498                                               intel_sdvo_connector->bottom,
2499                                               intel_sdvo_connector->bottom_margin);
2500                 DRM_DEBUG_KMS("v_overscan: max %d, "
2501                               "default %d, current %d\n",
2502                               data_value[0], data_value[1], response);
2503         }
2504
2505         ENHANCEMENT(hpos, HPOS);
2506         ENHANCEMENT(vpos, VPOS);
2507         ENHANCEMENT(saturation, SATURATION);
2508         ENHANCEMENT(contrast, CONTRAST);
2509         ENHANCEMENT(hue, HUE);
2510         ENHANCEMENT(sharpness, SHARPNESS);
2511         ENHANCEMENT(brightness, BRIGHTNESS);
2512         ENHANCEMENT(flicker_filter, FLICKER_FILTER);
2513         ENHANCEMENT(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
2514         ENHANCEMENT(flicker_filter_2d, FLICKER_FILTER_2D);
2515         ENHANCEMENT(tv_chroma_filter, TV_CHROMA_FILTER);
2516         ENHANCEMENT(tv_luma_filter, TV_LUMA_FILTER);
2517
2518         if (enhancements.dot_crawl) {
2519                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_DOT_CRAWL, &response, 2))
2520                         return false;
2521
2522                 intel_sdvo_connector->max_dot_crawl = 1;
2523                 intel_sdvo_connector->cur_dot_crawl = response & 0x1;
2524                 intel_sdvo_connector->dot_crawl =
2525                         drm_property_create_range(dev, 0, "dot_crawl", 0, 1);
2526                 if (!intel_sdvo_connector->dot_crawl)
2527                         return false;
2528
2529                 drm_connector_attach_property(connector,
2530                                               intel_sdvo_connector->dot_crawl,
2531                                               intel_sdvo_connector->cur_dot_crawl);
2532                 DRM_DEBUG_KMS("dot crawl: current %d\n", response);
2533         }
2534
2535         return true;
2536 }
2537
2538 static bool
2539 intel_sdvo_create_enhance_property_lvds(struct intel_sdvo *intel_sdvo,
2540                                         struct intel_sdvo_connector *intel_sdvo_connector,
2541                                         struct intel_sdvo_enhancements_reply enhancements)
2542 {
2543         struct drm_device *dev = intel_sdvo->base.base.dev;
2544         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2545         uint16_t response, data_value[2];
2546
2547         ENHANCEMENT(brightness, BRIGHTNESS);
2548
2549         return true;
2550 }
2551 #undef ENHANCEMENT
2552
2553 static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
2554                                                struct intel_sdvo_connector *intel_sdvo_connector)
2555 {
2556         union {
2557                 struct intel_sdvo_enhancements_reply reply;
2558                 uint16_t response;
2559         } enhancements;
2560
2561         BUILD_BUG_ON(sizeof(enhancements) != 2);
2562
2563         enhancements.response = 0;
2564         intel_sdvo_get_value(intel_sdvo,
2565                              SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
2566                              &enhancements, sizeof(enhancements));
2567         if (enhancements.response == 0) {
2568                 DRM_DEBUG_KMS("No enhancement is supported\n");
2569                 return true;
2570         }
2571
2572         if (IS_TV(intel_sdvo_connector))
2573                 return intel_sdvo_create_enhance_property_tv(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2574         else if (IS_LVDS(intel_sdvo_connector))
2575                 return intel_sdvo_create_enhance_property_lvds(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2576         else
2577                 return true;
2578 }
2579
2580 static int intel_sdvo_ddc_proxy_xfer(struct i2c_adapter *adapter,
2581                                      struct i2c_msg *msgs,
2582                                      int num)
2583 {
2584         struct intel_sdvo *sdvo = adapter->algo_data;
2585
2586         if (!intel_sdvo_set_control_bus_switch(sdvo, sdvo->ddc_bus))
2587                 return -EIO;
2588
2589         return sdvo->i2c->algo->master_xfer(sdvo->i2c, msgs, num);
2590 }
2591
2592 static u32 intel_sdvo_ddc_proxy_func(struct i2c_adapter *adapter)
2593 {
2594         struct intel_sdvo *sdvo = adapter->algo_data;
2595         return sdvo->i2c->algo->functionality(sdvo->i2c);
2596 }
2597
2598 static const struct i2c_algorithm intel_sdvo_ddc_proxy = {
2599         .master_xfer    = intel_sdvo_ddc_proxy_xfer,
2600         .functionality  = intel_sdvo_ddc_proxy_func
2601 };
2602
2603 static bool
2604 intel_sdvo_init_ddc_proxy(struct intel_sdvo *sdvo,
2605                           struct drm_device *dev)
2606 {
2607         sdvo->ddc.owner = THIS_MODULE;
2608         sdvo->ddc.class = I2C_CLASS_DDC;
2609         snprintf(sdvo->ddc.name, I2C_NAME_SIZE, "SDVO DDC proxy");
2610         sdvo->ddc.dev.parent = &dev->pdev->dev;
2611         sdvo->ddc.algo_data = sdvo;
2612         sdvo->ddc.algo = &intel_sdvo_ddc_proxy;
2613
2614         return i2c_add_adapter(&sdvo->ddc) == 0;
2615 }
2616
2617 bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
2618 {
2619         struct drm_i915_private *dev_priv = dev->dev_private;
2620         struct intel_encoder *intel_encoder;
2621         struct intel_sdvo *intel_sdvo;
2622         u32 hotplug_mask;
2623         int i;
2624
2625         intel_sdvo = kzalloc(sizeof(struct intel_sdvo), GFP_KERNEL);
2626         if (!intel_sdvo)
2627                 return false;
2628
2629         intel_sdvo->sdvo_reg = sdvo_reg;
2630         intel_sdvo->is_sdvob = is_sdvob;
2631         intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(dev, intel_sdvo) >> 1;
2632         intel_sdvo_select_i2c_bus(dev_priv, intel_sdvo, sdvo_reg);
2633         if (!intel_sdvo_init_ddc_proxy(intel_sdvo, dev)) {
2634                 kfree(intel_sdvo);
2635                 return false;
2636         }
2637
2638         /* encoder type will be decided later */
2639         intel_encoder = &intel_sdvo->base;
2640         intel_encoder->type = INTEL_OUTPUT_SDVO;
2641         drm_encoder_init(dev, &intel_encoder->base, &intel_sdvo_enc_funcs, 0);
2642
2643         /* Read the regs to test if we can talk to the device */
2644         for (i = 0; i < 0x40; i++) {
2645                 u8 byte;
2646
2647                 if (!intel_sdvo_read_byte(intel_sdvo, i, &byte)) {
2648                         DRM_DEBUG_KMS("No SDVO device found on %s\n",
2649                                       SDVO_NAME(intel_sdvo));
2650                         goto err;
2651                 }
2652         }
2653
2654         hotplug_mask = 0;
2655         if (IS_G4X(dev)) {
2656                 hotplug_mask = intel_sdvo->is_sdvob ?
2657                         SDVOB_HOTPLUG_INT_STATUS_G4X : SDVOC_HOTPLUG_INT_STATUS_G4X;
2658         } else if (IS_GEN4(dev)) {
2659                 hotplug_mask = intel_sdvo->is_sdvob ?
2660                         SDVOB_HOTPLUG_INT_STATUS_I965 : SDVOC_HOTPLUG_INT_STATUS_I965;
2661         } else {
2662                 hotplug_mask = intel_sdvo->is_sdvob ?
2663                         SDVOB_HOTPLUG_INT_STATUS_I915 : SDVOC_HOTPLUG_INT_STATUS_I915;
2664         }
2665
2666         drm_encoder_helper_add(&intel_encoder->base, &intel_sdvo_helper_funcs);
2667
2668         intel_encoder->disable = intel_disable_sdvo;
2669         intel_encoder->enable = intel_enable_sdvo;
2670         intel_encoder->get_hw_state = intel_sdvo_get_hw_state;
2671
2672         /* In default case sdvo lvds is false */
2673         if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
2674                 goto err;
2675
2676         if (intel_sdvo_output_setup(intel_sdvo,
2677                                     intel_sdvo->caps.output_flags) != true) {
2678                 DRM_DEBUG_KMS("SDVO output failed to setup on %s\n",
2679                               SDVO_NAME(intel_sdvo));
2680                 goto err;
2681         }
2682
2683         /* Only enable the hotplug irq if we need it, to work around noisy
2684          * hotplug lines.
2685          */
2686         if (intel_sdvo->hotplug_active)
2687                 dev_priv->hotplug_supported_mask |= hotplug_mask;
2688
2689         intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo, sdvo_reg);
2690
2691         /* Set the input timing to the screen. Assume always input 0. */
2692         if (!intel_sdvo_set_target_input(intel_sdvo))
2693                 goto err;
2694
2695         if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
2696                                                     &intel_sdvo->pixel_clock_min,
2697                                                     &intel_sdvo->pixel_clock_max))
2698                 goto err;
2699
2700         DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
2701                         "clock range %dMHz - %dMHz, "
2702                         "input 1: %c, input 2: %c, "
2703                         "output 1: %c, output 2: %c\n",
2704                         SDVO_NAME(intel_sdvo),
2705                         intel_sdvo->caps.vendor_id, intel_sdvo->caps.device_id,
2706                         intel_sdvo->caps.device_rev_id,
2707                         intel_sdvo->pixel_clock_min / 1000,
2708                         intel_sdvo->pixel_clock_max / 1000,
2709                         (intel_sdvo->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
2710                         (intel_sdvo->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
2711                         /* check currently supported outputs */
2712                         intel_sdvo->caps.output_flags &
2713                         (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
2714                         intel_sdvo->caps.output_flags &
2715                         (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
2716         return true;
2717
2718 err:
2719         drm_encoder_cleanup(&intel_encoder->base);
2720         i2c_del_adapter(&intel_sdvo->ddc);
2721         kfree(intel_sdvo);
2722
2723         return false;
2724 }