Pileus Git - ~andy/linux/blob - drivers/gpu/drm/i915/intel_sdvo.c

   1 /*
   2  * Copyright 2006 Dave Airlie <airlied@linux.ie>
   3  * Copyright © 2006-2007 Intel Corporation
   4  *   Jesse Barnes <jesse.barnes@intel.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23  * DEALINGS IN THE SOFTWARE.
  24  *
  25  * Authors:
  26  *      Eric Anholt <eric@anholt.net>
  27  */
  28 #include <linux/i2c.h>
  29 #include <linux/slab.h>
  30 #include <linux/delay.h>
  31 #include <linux/export.h>
  32 #include <drm/drmP.h>
  33 #include <drm/drm_crtc.h>
  34 #include <drm/drm_edid.h>
  35 #include "intel_drv.h"
  36 #include <drm/i915_drm.h>
  37 #include "i915_drv.h"
  38 #include "intel_sdvo_regs.h"
  39
  40 #define SDVO_TMDS_MASK (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)
  41 #define SDVO_RGB_MASK  (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1)
  42 #define SDVO_LVDS_MASK (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1)
  43 #define SDVO_TV_MASK   (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_YPRPB0)
  44
  45 #define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK |\
  46                         SDVO_TV_MASK)
  47
  48 #define IS_TV(c)        (c->output_flag & SDVO_TV_MASK)
  49 #define IS_TMDS(c)      (c->output_flag & SDVO_TMDS_MASK)
  50 #define IS_LVDS(c)      (c->output_flag & SDVO_LVDS_MASK)
  51 #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
  52 #define IS_DIGITAL(c) (c->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK))
  53
  54
  55 static const char *tv_format_names[] = {
  56         "NTSC_M"   , "NTSC_J"  , "NTSC_443",
  57         "PAL_B"    , "PAL_D"   , "PAL_G"   ,
  58         "PAL_H"    , "PAL_I"   , "PAL_M"   ,
  59         "PAL_N"    , "PAL_NC"  , "PAL_60"  ,
  60         "SECAM_B"  , "SECAM_D" , "SECAM_G" ,
  61         "SECAM_K"  , "SECAM_K1", "SECAM_L" ,
  62         "SECAM_60"
  63 };
  64
  65 #define TV_FORMAT_NUM  (sizeof(tv_format_names) / sizeof(*tv_format_names))
  66
  67 struct intel_sdvo {
  68         struct intel_encoder base;
  69
  70         struct i2c_adapter *i2c;
  71         u8 slave_addr;
  72
  73         struct i2c_adapter ddc;
  74
  75         /* Register for the SDVO device: SDVOB or SDVOC */
  76         uint32_t sdvo_reg;
  77
  78         /* Active outputs controlled by this SDVO output */
  79         uint16_t controlled_output;
  80
  81         /*
  82          * Capabilities of the SDVO device returned by
  83          * i830_sdvo_get_capabilities()
  84          */
  85         struct intel_sdvo_caps caps;
  86
  87         /* Pixel clock limitations reported by the SDVO device, in kHz */
  88         int pixel_clock_min, pixel_clock_max;
  89
  90         /*
  91         * For multiple function SDVO device,
  92         * this is for current attached outputs.
  93         */
  94         uint16_t attached_output;
  95
  96         /*
  97          * Hotplug activation bits for this device
  98          */
  99         uint16_t hotplug_active;
 100
 101         /**
 102          * This is used to select the color range of RBG outputs in HDMI mode.
 103          * It is only valid when using TMDS encoding and 8 bit per color mode.
 104          */
 105         uint32_t color_range;
 106         bool color_range_auto;
 107
 108         /**
 109          * This is set if we're going to treat the device as TV-out.
 110          *
 111          * While we have these nice friendly flags for output types that ought
 112          * to decide this for us, the S-Video output on our HDMI+S-Video card
 113          * shows up as RGB1 (VGA).
 114          */
 115         bool is_tv;
 116
 117         /* On different gens SDVOB is at different places. */
 118         bool is_sdvob;
 119
 120         /* This is for current tv format name */
 121         int tv_format_index;
 122
 123         /**
 124          * This is set if we treat the device as HDMI, instead of DVI.
 125          */
 126         bool is_hdmi;
 127         bool has_hdmi_monitor;
 128         bool has_hdmi_audio;
 129         bool rgb_quant_range_selectable;
 130
 131         /**
 132          * This is set if we detect output of sdvo device as LVDS and
 133          * have a valid fixed mode to use with the panel.
 134          */
 135         bool is_lvds;
 136
 137         /**
 138          * This is sdvo fixed pannel mode pointer
 139          */
 140         struct drm_display_mode *sdvo_lvds_fixed_mode;
 141
 142         /* DDC bus used by this SDVO encoder */
 143         uint8_t ddc_bus;
 144
 145         /*
 146          * the sdvo flag gets lost in round trip: dtd->adjusted_mode->dtd
 147          */
 148         uint8_t dtd_sdvo_flags;
 149 };
 150
 151 struct intel_sdvo_connector {
 152         struct intel_connector base;
 153
 154         /* Mark the type of connector */
 155         uint16_t output_flag;
 156
 157         enum hdmi_force_audio force_audio;
 158
 159         /* This contains all current supported TV format */
 160         u8 tv_format_supported[TV_FORMAT_NUM];
 161         int   format_supported_num;
 162         struct drm_property *tv_format;
 163
 164         /* add the property for the SDVO-TV */
 165         struct drm_property *left;
 166         struct drm_property *right;
 167         struct drm_property *top;
 168         struct drm_property *bottom;
 169         struct drm_property *hpos;
 170         struct drm_property *vpos;
 171         struct drm_property *contrast;
 172         struct drm_property *saturation;
 173         struct drm_property *hue;
 174         struct drm_property *sharpness;
 175         struct drm_property *flicker_filter;
 176         struct drm_property *flicker_filter_adaptive;
 177         struct drm_property *flicker_filter_2d;
 178         struct drm_property *tv_chroma_filter;
 179         struct drm_property *tv_luma_filter;
 180         struct drm_property *dot_crawl;
 181
 182         /* add the property for the SDVO-TV/LVDS */
 183         struct drm_property *brightness;
 184
 185         /* Add variable to record current setting for the above property */
 186         u32     left_margin, right_margin, top_margin, bottom_margin;
 187
 188         /* this is to get the range of margin.*/
 189         u32     max_hscan,  max_vscan;
 190         u32     max_hpos, cur_hpos;
 191         u32     max_vpos, cur_vpos;
 192         u32     cur_brightness, max_brightness;
 193         u32     cur_contrast,   max_contrast;
 194         u32     cur_saturation, max_saturation;
 195         u32     cur_hue,        max_hue;
 196         u32     cur_sharpness,  max_sharpness;
 197         u32     cur_flicker_filter,             max_flicker_filter;
 198         u32     cur_flicker_filter_adaptive,    max_flicker_filter_adaptive;
 199         u32     cur_flicker_filter_2d,          max_flicker_filter_2d;
 200         u32     cur_tv_chroma_filter,   max_tv_chroma_filter;
 201         u32     cur_tv_luma_filter,     max_tv_luma_filter;
 202         u32     cur_dot_crawl,  max_dot_crawl;
 203 };
 204
 205 static struct intel_sdvo *to_intel_sdvo(struct drm_encoder *encoder)
 206 {
 207         return container_of(encoder, struct intel_sdvo, base.base);
 208 }
 209
 210 static struct intel_sdvo *intel_attached_sdvo(struct drm_connector *connector)
 211 {
 212         return container_of(intel_attached_encoder(connector),
 213                             struct intel_sdvo, base);
 214 }
 215
 216 static struct intel_sdvo_connector *to_intel_sdvo_connector(struct drm_connector *connector)
 217 {
 218         return container_of(to_intel_connector(connector), struct intel_sdvo_connector, base);
 219 }
 220
 221 static bool
 222 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags);
 223 static bool
 224 intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
 225                               struct intel_sdvo_connector *intel_sdvo_connector,
 226                               int type);
 227 static bool
 228 intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
 229                                    struct intel_sdvo_connector *intel_sdvo_connector);
 230
 231 /**
 232  * Writes the SDVOB or SDVOC with the given value, but always writes both
 233  * SDVOB and SDVOC to work around apparent hardware issues (according to
 234  * comments in the BIOS).
 235  */
 236 static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val)
 237 {
 238         struct drm_device *dev = intel_sdvo->base.base.dev;
 239         struct drm_i915_private *dev_priv = dev->dev_private;
 240         u32 bval = val, cval = val;
 241         int i;
 242
 243         if (intel_sdvo->sdvo_reg == PCH_SDVOB) {
 244                 I915_WRITE(intel_sdvo->sdvo_reg, val);
 245                 I915_READ(intel_sdvo->sdvo_reg);
 246                 return;
 247         }
 248
 249         if (intel_sdvo->sdvo_reg == GEN3_SDVOB)
 250                 cval = I915_READ(GEN3_SDVOC);
 251         else
 252                 bval = I915_READ(GEN3_SDVOB);
 253
 254         /*
 255          * Write the registers twice for luck. Sometimes,
 256          * writing them only once doesn't appear to 'stick'.
 257          * The BIOS does this too. Yay, magic
 258          */
 259         for (i = 0; i < 2; i++)
 260         {
 261                 I915_WRITE(GEN3_SDVOB, bval);
 262                 I915_READ(GEN3_SDVOB);
 263                 I915_WRITE(GEN3_SDVOC, cval);
 264                 I915_READ(GEN3_SDVOC);
 265         }
 266 }
 267
 268 static bool intel_sdvo_read_byte(struct intel_sdvo *intel_sdvo, u8 addr, u8 *ch)
 269 {
 270         struct i2c_msg msgs[] = {
 271                 {
 272                         .addr = intel_sdvo->slave_addr,
 273                         .flags = 0,
 274                         .len = 1,
 275                         .buf = &addr,
 276                 },
 277                 {
 278                         .addr = intel_sdvo->slave_addr,
 279                         .flags = I2C_M_RD,
 280                         .len = 1,
 281                         .buf = ch,
 282                 }
 283         };
 284         int ret;
 285
 286         if ((ret = i2c_transfer(intel_sdvo->i2c, msgs, 2)) == 2)
 287                 return true;
 288
 289         DRM_DEBUG_KMS("i2c transfer returned %d\n", ret);
 290         return false;
 291 }
 292
 293 #define SDVO_CMD_NAME_ENTRY(cmd) {cmd, #cmd}
 294 /** Mapping of command numbers to names, for debug output */
 295 static const struct _sdvo_cmd_name {
 296         u8 cmd;
 297         const char *name;
 298 } sdvo_cmd_names[] = {
 299         SDVO_CMD_NAME_ENTRY(SDVO_CMD_RESET),
 300         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DEVICE_CAPS),
 301         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FIRMWARE_REV),
 302         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TRAINED_INPUTS),
 303         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_OUTPUTS),
 304         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_OUTPUTS),
 305         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_IN_OUT_MAP),
 306         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_IN_OUT_MAP),
 307         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ATTACHED_DISPLAYS),
 308         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HOT_PLUG_SUPPORT),
 309         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_HOT_PLUG),
 310         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_HOT_PLUG),
 311         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INTERRUPT_EVENT_SOURCE),
 312         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_INPUT),
 313         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_OUTPUT),
 314         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART1),
 315         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART2),
 316         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 317         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART2),
 318         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 319         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART1),
 320         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART2),
 321         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART1),
 322         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART2),
 323         SDVO_CMD_NAME_ENTRY(SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING),
 324         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1),
 325         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2),
 326         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE),
 327         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_PIXEL_CLOCK_RANGE),
 328         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_CLOCK_RATE_MULTS),
 329         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CLOCK_RATE_MULT),
 330         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CLOCK_RATE_MULT),
 331         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_TV_FORMATS),
 332         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_FORMAT),
 333         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_FORMAT),
 334         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_POWER_STATES),
 335         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_POWER_STATE),
 336         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODER_POWER_STATE),
 337         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DISPLAY_POWER_STATE),
 338         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTROL_BUS_SWITCH),
 339         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT),
 340         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SCALED_HDTV_RESOLUTION_SUPPORT),
 341         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS),
 342
 343         /* Add the op code for SDVO enhancements */
 344         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HPOS),
 345         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HPOS),
 346         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HPOS),
 347         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_VPOS),
 348         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_VPOS),
 349         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_VPOS),
 350         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SATURATION),
 351         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SATURATION),
 352         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SATURATION),
 353         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HUE),
 354         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HUE),
 355         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HUE),
 356         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_CONTRAST),
 357         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CONTRAST),
 358         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTRAST),
 359         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_BRIGHTNESS),
 360         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_BRIGHTNESS),
 361         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_BRIGHTNESS),
 362         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_H),
 363         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_H),
 364         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_H),
 365         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_V),
 366         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_V),
 367         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_V),
 368         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER),
 369         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER),
 370         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER),
 371         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_ADAPTIVE),
 372         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_ADAPTIVE),
 373         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_ADAPTIVE),
 374         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_2D),
 375         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_2D),
 376         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_2D),
 377         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SHARPNESS),
 378         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SHARPNESS),
 379         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SHARPNESS),
 380         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DOT_CRAWL),
 381         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DOT_CRAWL),
 382         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_CHROMA_FILTER),
 383         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_CHROMA_FILTER),
 384         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_CHROMA_FILTER),
 385         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_LUMA_FILTER),
 386         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_LUMA_FILTER),
 387         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_LUMA_FILTER),
 388
 389         /* HDMI op code */
 390         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPP_ENCODE),
 391         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ENCODE),
 392         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODE),
 393         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_PIXEL_REPLI),
 394         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PIXEL_REPLI),
 395         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY_CAP),
 396         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_COLORIMETRY),
 397         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY),
 398         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_ENCRYPT_PREFER),
 399         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_AUDIO_STAT),
 400         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_STAT),
 401         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INDEX),
 402         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_INDEX),
 403         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INFO),
 404         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_AV_SPLIT),
 405         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_AV_SPLIT),
 406         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_TXRATE),
 407         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_TXRATE),
 408         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_DATA),
 409         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_DATA),
 410 };
 411
 412 #define SDVO_NAME(svdo) ((svdo)->is_sdvob ? "SDVOB" : "SDVOC")
 413
 414 static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd,
 415                                    const void *args, int args_len)
 416 {
 417         int i;
 418
 419         DRM_DEBUG_KMS("%s: W: %02X ",
 420                                 SDVO_NAME(intel_sdvo), cmd);
 421         for (i = 0; i < args_len; i++)
 422                 DRM_LOG_KMS("%02X ", ((u8 *)args)[i]);
 423         for (; i < 8; i++)
 424                 DRM_LOG_KMS("   ");
 425         for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) {
 426                 if (cmd == sdvo_cmd_names[i].cmd) {
 427                         DRM_LOG_KMS("(%s)", sdvo_cmd_names[i].name);
 428                         break;
 429                 }
 430         }
 431         if (i == ARRAY_SIZE(sdvo_cmd_names))
 432                 DRM_LOG_KMS("(%02X)", cmd);
 433         DRM_LOG_KMS("\n");
 434 }
 435
 436 static const char *cmd_status_names[] = {
 437         "Power on",
 438         "Success",
 439         "Not supported",
 440         "Invalid arg",
 441         "Pending",
 442         "Target not specified",
 443         "Scaling not supported"
 444 };
 445
 446 static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
 447                                  const void *args, int args_len)
 448 {
 449         u8 *buf, status;
 450         struct i2c_msg *msgs;
 451         int i, ret = true;
 452
 453         /* Would be simpler to allocate both in one go ? */
 454         buf = kzalloc(args_len * 2 + 2, GFP_KERNEL);
 455         if (!buf)
 456                 return false;
 457
 458         msgs = kcalloc(args_len + 3, sizeof(*msgs), GFP_KERNEL);
 459         if (!msgs) {
 460                 kfree(buf);
 461                 return false;
 462         }
 463
 464         intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
 465
 466         for (i = 0; i < args_len; i++) {
 467                 msgs[i].addr = intel_sdvo->slave_addr;
 468                 msgs[i].flags = 0;
 469                 msgs[i].len = 2;
 470                 msgs[i].buf = buf + 2 *i;
 471                 buf[2*i + 0] = SDVO_I2C_ARG_0 - i;
 472                 buf[2*i + 1] = ((u8*)args)[i];
 473         }
 474         msgs[i].addr = intel_sdvo->slave_addr;
 475         msgs[i].flags = 0;
 476         msgs[i].len = 2;
 477         msgs[i].buf = buf + 2*i;
 478         buf[2*i + 0] = SDVO_I2C_OPCODE;
 479         buf[2*i + 1] = cmd;
 480
 481         /* the following two are to read the response */
 482         status = SDVO_I2C_CMD_STATUS;
 483         msgs[i+1].addr = intel_sdvo->slave_addr;
 484         msgs[i+1].flags = 0;
 485         msgs[i+1].len = 1;
 486         msgs[i+1].buf = &status;
 487
 488         msgs[i+2].addr = intel_sdvo->slave_addr;
 489         msgs[i+2].flags = I2C_M_RD;
 490         msgs[i+2].len = 1;
 491         msgs[i+2].buf = &status;
 492
 493         ret = i2c_transfer(intel_sdvo->i2c, msgs, i+3);
 494         if (ret < 0) {
 495                 DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
 496                 ret = false;
 497                 goto out;
 498         }
 499         if (ret != i+3) {
 500                 /* failure in I2C transfer */
 501                 DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3);
 502                 ret = false;
 503         }
 504
 505 out:
 506         kfree(msgs);
 507         kfree(buf);
 508         return ret;
 509 }
 510
 511 static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
 512                                      void *response, int response_len)
 513 {
 514         u8 retry = 15; /* 5 quick checks, followed by 10 long checks */
 515         u8 status;
 516         int i;
 517
 518         DRM_DEBUG_KMS("%s: R: ", SDVO_NAME(intel_sdvo));
 519
 520         /*
 521          * The documentation states that all commands will be
 522          * processed within 15µs, and that we need only poll
 523          * the status byte a maximum of 3 times in order for the
 524          * command to be complete.
 525          *
 526          * Check 5 times in case the hardware failed to read the docs.
 527          *
 528          * Also beware that the first response by many devices is to
 529          * reply PENDING and stall for time. TVs are notorious for
 530          * requiring longer than specified to complete their replies.
 531          * Originally (in the DDX long ago), the delay was only ever 15ms
 532          * with an additional delay of 30ms applied for TVs added later after
 533          * many experiments. To accommodate both sets of delays, we do a
 534          * sequence of slow checks if the device is falling behind and fails
 535          * to reply within 5*15µs.
 536          */
 537         if (!intel_sdvo_read_byte(intel_sdvo,
 538                                   SDVO_I2C_CMD_STATUS,
 539                                   &status))
 540                 goto log_fail;
 541
 542         while (status == SDVO_CMD_STATUS_PENDING && --retry) {
 543                 if (retry < 10)
 544                         msleep(15);
 545                 else
 546                         udelay(15);
 547
 548                 if (!intel_sdvo_read_byte(intel_sdvo,
 549                                           SDVO_I2C_CMD_STATUS,
 550                                           &status))
 551                         goto log_fail;
 552         }
 553
 554         if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
 555                 DRM_LOG_KMS("(%s)", cmd_status_names[status]);
 556         else
 557                 DRM_LOG_KMS("(??? %d)", status);
 558
 559         if (status != SDVO_CMD_STATUS_SUCCESS)
 560                 goto log_fail;
 561
 562         /* Read the command response */
 563         for (i = 0; i < response_len; i++) {
 564                 if (!intel_sdvo_read_byte(intel_sdvo,
 565                                           SDVO_I2C_RETURN_0 + i,
 566                                           &((u8 *)response)[i]))
 567                         goto log_fail;
 568                 DRM_LOG_KMS(" %02X", ((u8 *)response)[i]);
 569         }
 570         DRM_LOG_KMS("\n");
 571         return true;
 572
 573 log_fail:
 574         DRM_LOG_KMS("... failed\n");
 575         return false;
 576 }
 577
 578 static int intel_sdvo_get_pixel_multiplier(struct drm_display_mode *mode)
 579 {
 580         if (mode->clock >= 100000)
 581                 return 1;
 582         else if (mode->clock >= 50000)
 583                 return 2;
 584         else
 585                 return 4;
 586 }
 587
 588 static bool intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo,
 589                                               u8 ddc_bus)
 590 {
 591         /* This must be the immediately preceding write before the i2c xfer */
 592         return intel_sdvo_write_cmd(intel_sdvo,
 593                                     SDVO_CMD_SET_CONTROL_BUS_SWITCH,
 594                                     &ddc_bus, 1);
 595 }
 596
 597 static bool intel_sdvo_set_value(struct intel_sdvo *intel_sdvo, u8 cmd, const void *data, int len)
 598 {
 599         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, data, len))
 600                 return false;
 601
 602         return intel_sdvo_read_response(intel_sdvo, NULL, 0);
 603 }
 604
 605 static bool
 606 intel_sdvo_get_value(struct intel_sdvo *intel_sdvo, u8 cmd, void *value, int len)
 607 {
 608         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, NULL, 0))
 609                 return false;
 610
 611         return intel_sdvo_read_response(intel_sdvo, value, len);
 612 }
 613
 614 static bool intel_sdvo_set_target_input(struct intel_sdvo *intel_sdvo)
 615 {
 616         struct intel_sdvo_set_target_input_args targets = {0};
 617         return intel_sdvo_set_value(intel_sdvo,
 618                                     SDVO_CMD_SET_TARGET_INPUT,
 619                                     &targets, sizeof(targets));
 620 }
 621
 622 /**
 623  * Return whether each input is trained.
 624  *
 625  * This function is making an assumption about the layout of the response,
 626  * which should be checked against the docs.
 627  */
 628 static bool intel_sdvo_get_trained_inputs(struct intel_sdvo *intel_sdvo, bool *input_1, bool *input_2)
 629 {
 630         struct intel_sdvo_get_trained_inputs_response response;
 631
 632         BUILD_BUG_ON(sizeof(response) != 1);
 633         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_TRAINED_INPUTS,
 634                                   &response, sizeof(response)))
 635                 return false;
 636
 637         *input_1 = response.input0_trained;
 638         *input_2 = response.input1_trained;
 639         return true;
 640 }
 641
 642 static bool intel_sdvo_set_active_outputs(struct intel_sdvo *intel_sdvo,
 643                                           u16 outputs)
 644 {
 645         return intel_sdvo_set_value(intel_sdvo,
 646                                     SDVO_CMD_SET_ACTIVE_OUTPUTS,
 647                                     &outputs, sizeof(outputs));
 648 }
 649
 650 static bool intel_sdvo_get_active_outputs(struct intel_sdvo *intel_sdvo,
 651                                           u16 *outputs)
 652 {
 653         return intel_sdvo_get_value(intel_sdvo,
 654                                     SDVO_CMD_GET_ACTIVE_OUTPUTS,
 655                                     outputs, sizeof(*outputs));
 656 }
 657
 658 static bool intel_sdvo_set_encoder_power_state(struct intel_sdvo *intel_sdvo,
 659                                                int mode)
 660 {
 661         u8 state = SDVO_ENCODER_STATE_ON;
 662
 663         switch (mode) {
 664         case DRM_MODE_DPMS_ON:
 665                 state = SDVO_ENCODER_STATE_ON;
 666                 break;
 667         case DRM_MODE_DPMS_STANDBY:
 668                 state = SDVO_ENCODER_STATE_STANDBY;
 669                 break;
 670         case DRM_MODE_DPMS_SUSPEND:
 671                 state = SDVO_ENCODER_STATE_SUSPEND;
 672                 break;
 673         case DRM_MODE_DPMS_OFF:
 674                 state = SDVO_ENCODER_STATE_OFF;
 675                 break;
 676         }
 677
 678         return intel_sdvo_set_value(intel_sdvo,
 679                                     SDVO_CMD_SET_ENCODER_POWER_STATE, &state, sizeof(state));
 680 }
 681
 682 static bool intel_sdvo_get_input_pixel_clock_range(struct intel_sdvo *intel_sdvo,
 683                                                    int *clock_min,
 684                                                    int *clock_max)
 685 {
 686         struct intel_sdvo_pixel_clock_range clocks;
 687
 688         BUILD_BUG_ON(sizeof(clocks) != 4);
 689         if (!intel_sdvo_get_value(intel_sdvo,
 690                                   SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
 691                                   &clocks, sizeof(clocks)))
 692                 return false;
 693
 694         /* Convert the values from units of 10 kHz to kHz. */
 695         *clock_min = clocks.min * 10;
 696         *clock_max = clocks.max * 10;
 697         return true;
 698 }
 699
 700 static bool intel_sdvo_set_target_output(struct intel_sdvo *intel_sdvo,
 701                                          u16 outputs)
 702 {
 703         return intel_sdvo_set_value(intel_sdvo,
 704                                     SDVO_CMD_SET_TARGET_OUTPUT,
 705                                     &outputs, sizeof(outputs));
 706 }
 707
 708 static bool intel_sdvo_set_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 709                                   struct intel_sdvo_dtd *dtd)
 710 {
 711         return intel_sdvo_set_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 712                 intel_sdvo_set_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 713 }
 714
 715 static bool intel_sdvo_get_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 716                                   struct intel_sdvo_dtd *dtd)
 717 {
 718         return intel_sdvo_get_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 719                 intel_sdvo_get_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 720 }
 721
 722 static bool intel_sdvo_set_input_timing(struct intel_sdvo *intel_sdvo,
 723                                          struct intel_sdvo_dtd *dtd)
 724 {
 725         return intel_sdvo_set_timing(intel_sdvo,
 726                                      SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd);
 727 }
 728
 729 static bool intel_sdvo_set_output_timing(struct intel_sdvo *intel_sdvo,
 730                                          struct intel_sdvo_dtd *dtd)
 731 {
 732         return intel_sdvo_set_timing(intel_sdvo,
 733                                      SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd);
 734 }
 735
 736 static bool intel_sdvo_get_input_timing(struct intel_sdvo *intel_sdvo,
 737                                         struct intel_sdvo_dtd *dtd)
 738 {
 739         return intel_sdvo_get_timing(intel_sdvo,
 740                                      SDVO_CMD_GET_INPUT_TIMINGS_PART1, dtd);
 741 }
 742
 743 static bool
 744 intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 745                                          uint16_t clock,
 746                                          uint16_t width,
 747                                          uint16_t height)
 748 {
 749         struct intel_sdvo_preferred_input_timing_args args;
 750
 751         memset(&args, 0, sizeof(args));
 752         args.clock = clock;
 753         args.width = width;
 754         args.height = height;
 755         args.interlace = 0;
 756
 757         if (intel_sdvo->is_lvds &&
 758            (intel_sdvo->sdvo_lvds_fixed_mode->hdisplay != width ||
 759             intel_sdvo->sdvo_lvds_fixed_mode->vdisplay != height))
 760                 args.scaled = 1;
 761
 762         return intel_sdvo_set_value(intel_sdvo,
 763                                     SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
 764                                     &args, sizeof(args));
 765 }
 766
 767 static bool intel_sdvo_get_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 768                                                   struct intel_sdvo_dtd *dtd)
 769 {
 770         BUILD_BUG_ON(sizeof(dtd->part1) != 8);
 771         BUILD_BUG_ON(sizeof(dtd->part2) != 8);
 772         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
 773                                     &dtd->part1, sizeof(dtd->part1)) &&
 774                 intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
 775                                      &dtd->part2, sizeof(dtd->part2));
 776 }
 777
 778 static bool intel_sdvo_set_clock_rate_mult(struct intel_sdvo *intel_sdvo, u8 val)
 779 {
 780         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
 781 }
 782
 783 static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
 784                                          const struct drm_display_mode *mode)
 785 {
 786         uint16_t width, height;
 787         uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len;
 788         uint16_t h_sync_offset, v_sync_offset;
 789         int mode_clock;
 790
 791         width = mode->hdisplay;
 792         height = mode->vdisplay;
 793
 794         /* do some mode translations */
 795         h_blank_len = mode->htotal - mode->hdisplay;
 796         h_sync_len = mode->hsync_end - mode->hsync_start;
 797
 798         v_blank_len = mode->vtotal - mode->vdisplay;
 799         v_sync_len = mode->vsync_end - mode->vsync_start;
 800
 801         h_sync_offset = mode->hsync_start - mode->hdisplay;
 802         v_sync_offset = mode->vsync_start - mode->vdisplay;
 803
 804         mode_clock = mode->clock;
 805         mode_clock /= 10;
 806         dtd->part1.clock = mode_clock;
 807
 808         dtd->part1.h_active = width & 0xff;
 809         dtd->part1.h_blank = h_blank_len & 0xff;
 810         dtd->part1.h_high = (((width >> 8) & 0xf) << 4) |
 811                 ((h_blank_len >> 8) & 0xf);
 812         dtd->part1.v_active = height & 0xff;
 813         dtd->part1.v_blank = v_blank_len & 0xff;
 814         dtd->part1.v_high = (((height >> 8) & 0xf) << 4) |
 815                 ((v_blank_len >> 8) & 0xf);
 816
 817         dtd->part2.h_sync_off = h_sync_offset & 0xff;
 818         dtd->part2.h_sync_width = h_sync_len & 0xff;
 819         dtd->part2.v_sync_off_width = (v_sync_offset & 0xf) << 4 |
 820                 (v_sync_len & 0xf);
 821         dtd->part2.sync_off_width_high = ((h_sync_offset & 0x300) >> 2) |
 822                 ((h_sync_len & 0x300) >> 4) | ((v_sync_offset & 0x30) >> 2) |
 823                 ((v_sync_len & 0x30) >> 4);
 824
 825         dtd->part2.dtd_flags = 0x18;
 826         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 827                 dtd->part2.dtd_flags |= DTD_FLAG_INTERLACE;
 828         if (mode->flags & DRM_MODE_FLAG_PHSYNC)
 829                 dtd->part2.dtd_flags |= DTD_FLAG_HSYNC_POSITIVE;
 830         if (mode->flags & DRM_MODE_FLAG_PVSYNC)
 831                 dtd->part2.dtd_flags |= DTD_FLAG_VSYNC_POSITIVE;
 832
 833         dtd->part2.sdvo_flags = 0;
 834         dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
 835         dtd->part2.reserved = 0;
 836 }
 837
 838 static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode,
 839                                          const struct intel_sdvo_dtd *dtd)
 840 {
 841         mode->hdisplay = dtd->part1.h_active;
 842         mode->hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
 843         mode->hsync_start = mode->hdisplay + dtd->part2.h_sync_off;
 844         mode->hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
 845         mode->hsync_end = mode->hsync_start + dtd->part2.h_sync_width;
 846         mode->hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
 847         mode->htotal = mode->hdisplay + dtd->part1.h_blank;
 848         mode->htotal += (dtd->part1.h_high & 0xf) << 8;
 849
 850         mode->vdisplay = dtd->part1.v_active;
 851         mode->vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
 852         mode->vsync_start = mode->vdisplay;
 853         mode->vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
 854         mode->vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
 855         mode->vsync_start += dtd->part2.v_sync_off_high & 0xc0;
 856         mode->vsync_end = mode->vsync_start +
 857                 (dtd->part2.v_sync_off_width & 0xf);
 858         mode->vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
 859         mode->vtotal = mode->vdisplay + dtd->part1.v_blank;
 860         mode->vtotal += (dtd->part1.v_high & 0xf) << 8;
 861
 862         mode->clock = dtd->part1.clock * 10;
 863
 864         mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
 865         if (dtd->part2.dtd_flags & DTD_FLAG_INTERLACE)
 866                 mode->flags |= DRM_MODE_FLAG_INTERLACE;
 867         if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
 868                 mode->flags |= DRM_MODE_FLAG_PHSYNC;
 869         if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
 870                 mode->flags |= DRM_MODE_FLAG_PVSYNC;
 871 }
 872
 873 static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo)
 874 {
 875         struct intel_sdvo_encode encode;
 876
 877         BUILD_BUG_ON(sizeof(encode) != 2);
 878         return intel_sdvo_get_value(intel_sdvo,
 879                                   SDVO_CMD_GET_SUPP_ENCODE,
 880                                   &encode, sizeof(encode));
 881 }
 882
 883 static bool intel_sdvo_set_encode(struct intel_sdvo *intel_sdvo,
 884                                   uint8_t mode)
 885 {
 886         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_ENCODE, &mode, 1);
 887 }
 888
 889 static bool intel_sdvo_set_colorimetry(struct intel_sdvo *intel_sdvo,
 890                                        uint8_t mode)
 891 {
 892         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
 893 }
 894
 895 #if 0
 896 static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
 897 {
 898         int i, j;
 899         uint8_t set_buf_index[2];
 900         uint8_t av_split;
 901         uint8_t buf_size;
 902         uint8_t buf[48];
 903         uint8_t *pos;
 904
 905         intel_sdvo_get_value(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, &av_split, 1);
 906
 907         for (i = 0; i <= av_split; i++) {
 908                 set_buf_index[0] = i; set_buf_index[1] = 0;
 909                 intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX,
 910                                      set_buf_index, 2);
 911                 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
 912                 intel_sdvo_read_response(encoder, &buf_size, 1);
 913
 914                 pos = buf;
 915                 for (j = 0; j <= buf_size; j += 8) {
 916                         intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA,
 917                                              NULL, 0);
 918                         intel_sdvo_read_response(encoder, pos, 8);
 919                         pos += 8;
 920                 }
 921         }
 922 }
 923 #endif
 924
 925 static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo,
 926                                        unsigned if_index, uint8_t tx_rate,
 927                                        uint8_t *data, unsigned length)
 928 {
 929         uint8_t set_buf_index[2] = { if_index, 0 };
 930         uint8_t hbuf_size, tmp[8];
 931         int i;
 932
 933         if (!intel_sdvo_set_value(intel_sdvo,
 934                                   SDVO_CMD_SET_HBUF_INDEX,
 935                                   set_buf_index, 2))
 936                 return false;
 937
 938         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HBUF_INFO,
 939                                   &hbuf_size, 1))
 940                 return false;
 941
 942         /* Buffer size is 0 based, hooray! */
 943         hbuf_size++;
 944
 945         DRM_DEBUG_KMS("writing sdvo hbuf: %i, hbuf_size %i, hbuf_size: %i\n",
 946                       if_index, length, hbuf_size);
 947
 948         for (i = 0; i < hbuf_size; i += 8) {
 949                 memset(tmp, 0, 8);
 950                 if (i < length)
 951                         memcpy(tmp, data + i, min_t(unsigned, 8, length - i));
 952
 953                 if (!intel_sdvo_set_value(intel_sdvo,
 954                                           SDVO_CMD_SET_HBUF_DATA,
 955                                           tmp, 8))
 956                         return false;
 957         }
 958
 959         return intel_sdvo_set_value(intel_sdvo,
 960                                     SDVO_CMD_SET_HBUF_TXRATE,
 961                                     &tx_rate, 1);
 962 }
 963
 964 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
 965                                          const struct drm_display_mode *adjusted_mode)
 966 {
 967         struct dip_infoframe avi_if = {
 968                 .type = DIP_TYPE_AVI,
 969                 .ver = DIP_VERSION_AVI,
 970                 .len = DIP_LEN_AVI,
 971         };
 972         uint8_t sdvo_data[4 + sizeof(avi_if.body.avi)];
 973         struct intel_crtc *intel_crtc = to_intel_crtc(intel_sdvo->base.base.crtc);
 974
 975         if (intel_sdvo->rgb_quant_range_selectable) {
 976                 if (intel_crtc->config.limited_color_range)
 977                         avi_if.body.avi.ITC_EC_Q_SC |= DIP_AVI_RGB_QUANT_RANGE_LIMITED;
 978                 else
 979                         avi_if.body.avi.ITC_EC_Q_SC |= DIP_AVI_RGB_QUANT_RANGE_FULL;
 980         }
 981
 982         avi_if.body.avi.VIC = drm_match_cea_mode(adjusted_mode);
 983
 984         intel_dip_infoframe_csum(&avi_if);
 985
 986         /* sdvo spec says that the ecc is handled by the hw, and it looks like
 987          * we must not send the ecc field, either. */
 988         memcpy(sdvo_data, &avi_if, 3);
 989         sdvo_data[3] = avi_if.checksum;
 990         memcpy(&sdvo_data[4], &avi_if.body, sizeof(avi_if.body.avi));
 991
 992         return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF,
 993                                           SDVO_HBUF_TX_VSYNC,
 994                                           sdvo_data, sizeof(sdvo_data));
 995 }
 996
 997 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
 998 {
 999         struct intel_sdvo_tv_format format;
1000         uint32_t format_map;
1001
1002         format_map = 1 << intel_sdvo->tv_format_index;
1003         memset(&format, 0, sizeof(format));
1004         memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map)));
1005
1006         BUILD_BUG_ON(sizeof(format) != 6);
1007         return intel_sdvo_set_value(intel_sdvo,
1008                                     SDVO_CMD_SET_TV_FORMAT,
1009                                     &format, sizeof(format));
1010 }
1011
1012 static bool
1013 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
1014                                         const struct drm_display_mode *mode)
1015 {
1016         struct intel_sdvo_dtd output_dtd;
1017
1018         if (!intel_sdvo_set_target_output(intel_sdvo,
1019                                           intel_sdvo->attached_output))
1020                 return false;
1021
1022         intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1023         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1024                 return false;
1025
1026         return true;
1027 }
1028
1029 /* Asks the sdvo controller for the preferred input mode given the output mode.
1030  * Unfortunately we have to set up the full output mode to do that. */
1031 static bool
1032 intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
1033                                     const struct drm_display_mode *mode,
1034                                     struct drm_display_mode *adjusted_mode)
1035 {
1036         struct intel_sdvo_dtd input_dtd;
1037
1038         /* Reset the input timing to the screen. Assume always input 0. */
1039         if (!intel_sdvo_set_target_input(intel_sdvo))
1040                 return false;
1041
1042         if (!intel_sdvo_create_preferred_input_timing(intel_sdvo,
1043                                                       mode->clock / 10,
1044                                                       mode->hdisplay,
1045                                                       mode->vdisplay))
1046                 return false;
1047
1048         if (!intel_sdvo_get_preferred_input_timing(intel_sdvo,
1049                                                    &input_dtd))
1050                 return false;
1051
1052         intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd);
1053         intel_sdvo->dtd_sdvo_flags = input_dtd.part2.sdvo_flags;
1054
1055         return true;
1056 }
1057
1058 static void i9xx_adjust_sdvo_tv_clock(struct intel_crtc_config *pipe_config)
1059 {
1060         unsigned dotclock = pipe_config->adjusted_mode.clock;
1061         struct dpll *clock = &pipe_config->dpll;
1062
1063         /* SDVO TV has fixed PLL values depend on its clock range,
1064            this mirrors vbios setting. */
1065         if (dotclock >= 100000 && dotclock < 140500) {
1066                 clock->p1 = 2;
1067                 clock->p2 = 10;
1068                 clock->n = 3;
1069                 clock->m1 = 16;
1070                 clock->m2 = 8;
1071         } else if (dotclock >= 140500 && dotclock <= 200000) {
1072                 clock->p1 = 1;
1073                 clock->p2 = 10;
1074                 clock->n = 6;
1075                 clock->m1 = 12;
1076                 clock->m2 = 8;
1077         } else {
1078                 WARN(1, "SDVO TV clock out of range: %i\n", dotclock);
1079         }
1080
1081         pipe_config->clock_set = true;
1082 }
1083
1084 static bool intel_sdvo_compute_config(struct intel_encoder *encoder,
1085                                       struct intel_crtc_config *pipe_config)
1086 {
1087         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1088         struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
1089         struct drm_display_mode *mode = &pipe_config->requested_mode;
1090
1091         DRM_DEBUG_KMS("forcing bpc to 8 for SDVO\n");
1092         pipe_config->pipe_bpp = 8*3;
1093
1094         if (HAS_PCH_SPLIT(encoder->base.dev))
1095                 pipe_config->has_pch_encoder = true;
1096
1097         /* We need to construct preferred input timings based on our
1098          * output timings.  To do that, we have to set the output
1099          * timings, even though this isn't really the right place in
1100          * the sequence to do it. Oh well.
1101          */
1102         if (intel_sdvo->is_tv) {
1103                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
1104                         return false;
1105
1106                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1107                                                            mode,
1108                                                            adjusted_mode);
1109                 pipe_config->sdvo_tv_clock = true;
1110         } else if (intel_sdvo->is_lvds) {
1111                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
1112                                                              intel_sdvo->sdvo_lvds_fixed_mode))
1113                         return false;
1114
1115                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1116                                                            mode,
1117                                                            adjusted_mode);
1118         }
1119
1120         /* Make the CRTC code factor in the SDVO pixel multiplier.  The
1121          * SDVO device will factor out the multiplier during mode_set.
1122          */
1123         pipe_config->pixel_multiplier =
1124                 intel_sdvo_get_pixel_multiplier(adjusted_mode);
1125         adjusted_mode->clock *= pipe_config->pixel_multiplier;
1126
1127         if (intel_sdvo->color_range_auto) {
1128                 /* See CEA-861-E - 5.1 Default Encoding Parameters */
1129                 /* FIXME: This bit is only valid when using TMDS encoding and 8
1130                  * bit per color mode. */
1131                 if (intel_sdvo->has_hdmi_monitor &&
1132                     drm_match_cea_mode(adjusted_mode) > 1)
1133                         intel_sdvo->color_range = HDMI_COLOR_RANGE_16_235;
1134                 else
1135                         intel_sdvo->color_range = 0;
1136         }
1137
1138         if (intel_sdvo->color_range)
1139                 pipe_config->limited_color_range = true;
1140
1141         /* Clock computation needs to happen after pixel multiplier. */
1142         if (intel_sdvo->is_tv)
1143                 i9xx_adjust_sdvo_tv_clock(pipe_config);
1144
1145         return true;
1146 }
1147
1148 static void intel_sdvo_mode_set(struct intel_encoder *intel_encoder)
1149 {
1150         struct drm_device *dev = intel_encoder->base.dev;
1151         struct drm_i915_private *dev_priv = dev->dev_private;
1152         struct drm_crtc *crtc = intel_encoder->base.crtc;
1153         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1154         struct drm_display_mode *adjusted_mode =
1155                 &intel_crtc->config.adjusted_mode;
1156         struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
1157         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&intel_encoder->base);
1158         u32 sdvox;
1159         struct intel_sdvo_in_out_map in_out;
1160         struct intel_sdvo_dtd input_dtd, output_dtd;
1161         int rate;
1162
1163         if (!mode)
1164                 return;
1165
1166         /* First, set the input mapping for the first input to our controlled
1167          * output. This is only correct if we're a single-input device, in
1168          * which case the first input is the output from the appropriate SDVO
1169          * channel on the motherboard.  In a two-input device, the first input
1170          * will be SDVOB and the second SDVOC.
1171          */
1172         in_out.in0 = intel_sdvo->attached_output;
1173         in_out.in1 = 0;
1174
1175         intel_sdvo_set_value(intel_sdvo,
1176                              SDVO_CMD_SET_IN_OUT_MAP,
1177                              &in_out, sizeof(in_out));
1178
1179         /* Set the output timings to the screen */
1180         if (!intel_sdvo_set_target_output(intel_sdvo,
1181                                           intel_sdvo->attached_output))
1182                 return;
1183
1184         /* lvds has a special fixed output timing. */
1185         if (intel_sdvo->is_lvds)
1186                 intel_sdvo_get_dtd_from_mode(&output_dtd,
1187                                              intel_sdvo->sdvo_lvds_fixed_mode);
1188         else
1189                 intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1190         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1191                 DRM_INFO("Setting output timings on %s failed\n",
1192                          SDVO_NAME(intel_sdvo));
1193
1194         /* Set the input timing to the screen. Assume always input 0. */
1195         if (!intel_sdvo_set_target_input(intel_sdvo))
1196                 return;
1197
1198         if (intel_sdvo->has_hdmi_monitor) {
1199                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI);
1200                 intel_sdvo_set_colorimetry(intel_sdvo,
1201                                            SDVO_COLORIMETRY_RGB256);
1202                 intel_sdvo_set_avi_infoframe(intel_sdvo, adjusted_mode);
1203         } else
1204                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);
1205
1206         if (intel_sdvo->is_tv &&
1207             !intel_sdvo_set_tv_format(intel_sdvo))
1208                 return;
1209
1210         /* We have tried to get input timing in mode_fixup, and filled into
1211          * adjusted_mode.
1212          */
1213         intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
1214         if (intel_sdvo->is_tv || intel_sdvo->is_lvds)
1215                 input_dtd.part2.sdvo_flags = intel_sdvo->dtd_sdvo_flags;
1216         if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd))
1217                 DRM_INFO("Setting input timings on %s failed\n",
1218                          SDVO_NAME(intel_sdvo));
1219
1220         switch (intel_crtc->config.pixel_multiplier) {
1221         default:
1222         case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break;
1223         case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break;
1224         case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break;
1225         }
1226         if (!intel_sdvo_set_clock_rate_mult(intel_sdvo, rate))
1227                 return;
1228
1229         /* Set the SDVO control regs. */
1230         if (INTEL_INFO(dev)->gen >= 4) {
1231                 /* The real mode polarity is set by the SDVO commands, using
1232                  * struct intel_sdvo_dtd. */
1233                 sdvox = SDVO_VSYNC_ACTIVE_HIGH | SDVO_HSYNC_ACTIVE_HIGH;
1234                 if (!HAS_PCH_SPLIT(dev) && intel_sdvo->is_hdmi)
1235                         sdvox |= intel_sdvo->color_range;
1236                 if (INTEL_INFO(dev)->gen < 5)
1237                         sdvox |= SDVO_BORDER_ENABLE;
1238         } else {
1239                 sdvox = I915_READ(intel_sdvo->sdvo_reg);
1240                 switch (intel_sdvo->sdvo_reg) {
1241                 case GEN3_SDVOB:
1242                         sdvox &= SDVOB_PRESERVE_MASK;
1243                         break;
1244                 case GEN3_SDVOC:
1245                         sdvox &= SDVOC_PRESERVE_MASK;
1246                         break;
1247                 }
1248                 sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
1249         }
1250
1251         if (INTEL_PCH_TYPE(dev) >= PCH_CPT)
1252                 sdvox |= SDVO_PIPE_SEL_CPT(intel_crtc->pipe);
1253         else
1254                 sdvox |= SDVO_PIPE_SEL(intel_crtc->pipe);
1255
1256         if (intel_sdvo->has_hdmi_audio)
1257                 sdvox |= SDVO_AUDIO_ENABLE;
1258
1259         if (INTEL_INFO(dev)->gen >= 4) {
1260                 /* done in crtc_mode_set as the dpll_md reg must be written early */
1261         } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
1262                 /* done in crtc_mode_set as it lives inside the dpll register */
1263         } else {
1264                 sdvox |= (intel_crtc->config.pixel_multiplier - 1)
1265                         << SDVO_PORT_MULTIPLY_SHIFT;
1266         }
1267
1268         if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL &&
1269             INTEL_INFO(dev)->gen < 5)
1270                 sdvox |= SDVO_STALL_SELECT;
1271         intel_sdvo_write_sdvox(intel_sdvo, sdvox);
1272 }
1273
1274 static bool intel_sdvo_connector_get_hw_state(struct intel_connector *connector)
1275 {
1276         struct intel_sdvo_connector *intel_sdvo_connector =
1277                 to_intel_sdvo_connector(&connector->base);
1278         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(&connector->base);
1279         u16 active_outputs;
1280
1281         intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
1282
1283         if (active_outputs & intel_sdvo_connector->output_flag)
1284                 return true;
1285         else
1286                 return false;
1287 }
1288
1289 static bool intel_sdvo_get_hw_state(struct intel_encoder *encoder,
1290                                     enum pipe *pipe)
1291 {
1292         struct drm_device *dev = encoder->base.dev;
1293         struct drm_i915_private *dev_priv = dev->dev_private;
1294         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1295         u16 active_outputs;
1296         u32 tmp;
1297
1298         tmp = I915_READ(intel_sdvo->sdvo_reg);
1299         intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
1300
1301         if (!(tmp & SDVO_ENABLE) && (active_outputs == 0))
1302                 return false;
1303
1304         if (HAS_PCH_CPT(dev))
1305                 *pipe = PORT_TO_PIPE_CPT(tmp);
1306         else
1307                 *pipe = PORT_TO_PIPE(tmp);
1308
1309         return true;
1310 }
1311
1312 static void intel_sdvo_get_config(struct intel_encoder *encoder,
1313                                   struct intel_crtc_config *pipe_config)
1314 {
1315         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1316         struct intel_sdvo_dtd dtd;
1317         u32 flags = 0;
1318         bool ret;
1319
1320         ret = intel_sdvo_get_input_timing(intel_sdvo, &dtd);
1321         if (!ret) {
1322                 DRM_DEBUG_DRIVER("failed to retrieve SDVO DTD\n");
1323                 return;
1324         }
1325
1326         if (dtd.part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
1327                 flags |= DRM_MODE_FLAG_PHSYNC;
1328         else
1329                 flags |= DRM_MODE_FLAG_NHSYNC;
1330
1331         if (dtd.part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
1332                 flags |= DRM_MODE_FLAG_PVSYNC;
1333         else
1334                 flags |= DRM_MODE_FLAG_NVSYNC;
1335
1336         pipe_config->adjusted_mode.flags |= flags;
1337 }
1338
1339 static void intel_disable_sdvo(struct intel_encoder *encoder)
1340 {
1341         struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
1342         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1343         u32 temp;
1344
1345         intel_sdvo_set_active_outputs(intel_sdvo, 0);
1346         if (0)
1347                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1348                                                    DRM_MODE_DPMS_OFF);
1349
1350         temp = I915_READ(intel_sdvo->sdvo_reg);
1351         if ((temp & SDVO_ENABLE) != 0) {
1352                 /* HW workaround for IBX, we need to move the port to
1353                  * transcoder A before disabling it. */
1354                 if (HAS_PCH_IBX(encoder->base.dev)) {
1355                         struct drm_crtc *crtc = encoder->base.crtc;
1356                         int pipe = crtc ? to_intel_crtc(crtc)->pipe : -1;
1357
1358                         if (temp & SDVO_PIPE_B_SELECT) {
1359                                 temp &= ~SDVO_PIPE_B_SELECT;
1360                                 I915_WRITE(intel_sdvo->sdvo_reg, temp);
1361                                 POSTING_READ(intel_sdvo->sdvo_reg);
1362
1363                                 /* Again we need to write this twice. */
1364                                 I915_WRITE(intel_sdvo->sdvo_reg, temp);
1365                                 POSTING_READ(intel_sdvo->sdvo_reg);
1366
1367                                 /* Transcoder selection bits only update
1368                                  * effectively on vblank. */
1369                                 if (crtc)
1370                                         intel_wait_for_vblank(encoder->base.dev, pipe);
1371                                 else
1372                                         msleep(50);
1373                         }
1374                 }
1375
1376                 intel_sdvo_write_sdvox(intel_sdvo, temp & ~SDVO_ENABLE);
1377         }
1378 }
1379
1380 static void intel_enable_sdvo(struct intel_encoder *encoder)
1381 {
1382         struct drm_device *dev = encoder->base.dev;
1383         struct drm_i915_private *dev_priv = dev->dev_private;
1384         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1385         struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
1386         u32 temp;
1387         bool input1, input2;
1388         int i;
1389         u8 status;
1390
1391         temp = I915_READ(intel_sdvo->sdvo_reg);
1392         if ((temp & SDVO_ENABLE) == 0) {
1393                 /* HW workaround for IBX, we need to move the port
1394                  * to transcoder A before disabling it, so restore it here. */
1395                 if (HAS_PCH_IBX(dev))
1396                         temp |= SDVO_PIPE_SEL(intel_crtc->pipe);
1397
1398                 intel_sdvo_write_sdvox(intel_sdvo, temp | SDVO_ENABLE);
1399         }
1400         for (i = 0; i < 2; i++)
1401                 intel_wait_for_vblank(dev, intel_crtc->pipe);
1402
1403         status = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2);
1404         /* Warn if the device reported failure to sync.
1405          * A lot of SDVO devices fail to notify of sync, but it's
1406          * a given it the status is a success, we succeeded.
1407          */
1408         if (status == SDVO_CMD_STATUS_SUCCESS && !input1) {
1409                 DRM_DEBUG_KMS("First %s output reported failure to "
1410                                 "sync\n", SDVO_NAME(intel_sdvo));
1411         }
1412
1413         if (0)
1414                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1415                                                    DRM_MODE_DPMS_ON);
1416         intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1417 }
1418
1419 /* Special dpms function to support cloning between dvo/sdvo/crt. */
1420 static void intel_sdvo_dpms(struct drm_connector *connector, int mode)
1421 {
1422         struct drm_crtc *crtc;
1423         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1424
1425         /* dvo supports only 2 dpms states. */
1426         if (mode != DRM_MODE_DPMS_ON)
1427                 mode = DRM_MODE_DPMS_OFF;
1428
1429         if (mode == connector->dpms)
1430                 return;
1431
1432         connector->dpms = mode;
1433
1434         /* Only need to change hw state when actually enabled */
1435         crtc = intel_sdvo->base.base.crtc;
1436         if (!crtc) {
1437                 intel_sdvo->base.connectors_active = false;
1438                 return;
1439         }
1440
1441         /* We set active outputs manually below in case pipe dpms doesn't change
1442          * due to cloning. */
1443         if (mode != DRM_MODE_DPMS_ON) {
1444                 intel_sdvo_set_active_outputs(intel_sdvo, 0);
1445                 if (0)
1446                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1447
1448                 intel_sdvo->base.connectors_active = false;
1449
1450                 intel_crtc_update_dpms(crtc);
1451         } else {
1452                 intel_sdvo->base.connectors_active = true;
1453
1454                 intel_crtc_update_dpms(crtc);
1455
1456                 if (0)
1457                         intel_sdvo_set_encoder_power_state(intel_sdvo, mode);
1458                 intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1459         }
1460
1461         intel_modeset_check_state(connector->dev);
1462 }
1463
1464 static int intel_sdvo_mode_valid(struct drm_connector *connector,
1465                                  struct drm_display_mode *mode)
1466 {
1467         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1468
1469         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
1470                 return MODE_NO_DBLESCAN;
1471
1472         if (intel_sdvo->pixel_clock_min > mode->clock)
1473                 return MODE_CLOCK_LOW;
1474
1475         if (intel_sdvo->pixel_clock_max < mode->clock)
1476                 return MODE_CLOCK_HIGH;
1477
1478         if (intel_sdvo->is_lvds) {
1479                 if (mode->hdisplay > intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
1480                         return MODE_PANEL;
1481
1482                 if (mode->vdisplay > intel_sdvo->sdvo_lvds_fixed_mode->vdisplay)
1483                         return MODE_PANEL;
1484         }
1485
1486         return MODE_OK;
1487 }
1488
1489 static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct intel_sdvo_caps *caps)
1490 {
1491         BUILD_BUG_ON(sizeof(*caps) != 8);
1492         if (!intel_sdvo_get_value(intel_sdvo,
1493                                   SDVO_CMD_GET_DEVICE_CAPS,
1494                                   caps, sizeof(*caps)))
1495                 return false;
1496
1497         DRM_DEBUG_KMS("SDVO capabilities:\n"
1498                       "  vendor_id: %d\n"
1499                       "  device_id: %d\n"
1500                       "  device_rev_id: %d\n"
1501                       "  sdvo_version_major: %d\n"
1502                       "  sdvo_version_minor: %d\n"
1503                       "  sdvo_inputs_mask: %d\n"
1504                       "  smooth_scaling: %d\n"
1505                       "  sharp_scaling: %d\n"
1506                       "  up_scaling: %d\n"
1507                       "  down_scaling: %d\n"
1508                       "  stall_support: %d\n"
1509                       "  output_flags: %d\n",
1510                       caps->vendor_id,
1511                       caps->device_id,
1512                       caps->device_rev_id,
1513                       caps->sdvo_version_major,
1514                       caps->sdvo_version_minor,
1515                       caps->sdvo_inputs_mask,
1516                       caps->smooth_scaling,
1517                       caps->sharp_scaling,
1518                       caps->up_scaling,
1519                       caps->down_scaling,
1520                       caps->stall_support,
1521                       caps->output_flags);
1522
1523         return true;
1524 }
1525
1526 static uint16_t intel_sdvo_get_hotplug_support(struct intel_sdvo *intel_sdvo)
1527 {
1528         struct drm_device *dev = intel_sdvo->base.base.dev;
1529         uint16_t hotplug;
1530
1531         /* HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise
1532          * on the line. */
1533         if (IS_I945G(dev) || IS_I945GM(dev))
1534                 return 0;
1535
1536         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
1537                                         &hotplug, sizeof(hotplug)))
1538                 return 0;
1539
1540         return hotplug;
1541 }
1542
1543 static void intel_sdvo_enable_hotplug(struct intel_encoder *encoder)
1544 {
1545         struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
1546
1547         intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG,
1548                         &intel_sdvo->hotplug_active, 2);
1549 }
1550
1551 static bool
1552 intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
1553 {
1554         /* Is there more than one type of output? */
1555         return hweight16(intel_sdvo->caps.output_flags) > 1;
1556 }
1557
1558 static struct edid *
1559 intel_sdvo_get_edid(struct drm_connector *connector)
1560 {
1561         struct intel_sdvo *sdvo = intel_attached_sdvo(connector);
1562         return drm_get_edid(connector, &sdvo->ddc);
1563 }
1564
1565 /* Mac mini hack -- use the same DDC as the analog connector */
1566 static struct edid *
1567 intel_sdvo_get_analog_edid(struct drm_connector *connector)
1568 {
1569         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1570
1571         return drm_get_edid(connector,
1572                             intel_gmbus_get_adapter(dev_priv,
1573                                                     dev_priv->vbt.crt_ddc_pin));
1574 }
1575
1576 static enum drm_connector_status
1577 intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
1578 {
1579         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1580         enum drm_connector_status status;
1581         struct edid *edid;
1582
1583         edid = intel_sdvo_get_edid(connector);
1584
1585         if (edid == NULL && intel_sdvo_multifunc_encoder(intel_sdvo)) {
1586                 u8 ddc, saved_ddc = intel_sdvo->ddc_bus;
1587
1588                 /*
1589                  * Don't use the 1 as the argument of DDC bus switch to get
1590                  * the EDID. It is used for SDVO SPD ROM.
1591                  */
1592                 for (ddc = intel_sdvo->ddc_bus >> 1; ddc > 1; ddc >>= 1) {
1593                         intel_sdvo->ddc_bus = ddc;
1594                         edid = intel_sdvo_get_edid(connector);
1595                         if (edid)
1596                                 break;
1597                 }
1598                 /*
1599                  * If we found the EDID on the other bus,
1600                  * assume that is the correct DDC bus.
1601                  */
1602                 if (edid == NULL)
1603                         intel_sdvo->ddc_bus = saved_ddc;
1604         }
1605
1606         /*
1607          * When there is no edid and no monitor is connected with VGA
1608          * port, try to use the CRT ddc to read the EDID for DVI-connector.
1609          */
1610         if (edid == NULL)
1611                 edid = intel_sdvo_get_analog_edid(connector);
1612
1613         status = connector_status_unknown;
1614         if (edid != NULL) {
1615                 /* DDC bus is shared, match EDID to connector type */
1616                 if (edid->input & DRM_EDID_INPUT_DIGITAL) {
1617                         status = connector_status_connected;
1618                         if (intel_sdvo->is_hdmi) {
1619                                 intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
1620                                 intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
1621                                 intel_sdvo->rgb_quant_range_selectable =
1622                                         drm_rgb_quant_range_selectable(edid);
1623                         }
1624                 } else
1625                         status = connector_status_disconnected;
1626                 kfree(edid);
1627         }
1628
1629         if (status == connector_status_connected) {
1630                 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1631                 if (intel_sdvo_connector->force_audio != HDMI_AUDIO_AUTO)
1632                         intel_sdvo->has_hdmi_audio = (intel_sdvo_connector->force_audio == HDMI_AUDIO_ON);
1633         }
1634
1635         return status;
1636 }
1637
1638 static bool
1639 intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
1640                                   struct edid *edid)
1641 {
1642         bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
1643         bool connector_is_digital = !!IS_DIGITAL(sdvo);
1644
1645         DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n",
1646                       connector_is_digital, monitor_is_digital);
1647         return connector_is_digital == monitor_is_digital;
1648 }
1649
1650 static enum drm_connector_status
1651 intel_sdvo_detect(struct drm_connector *connector, bool force)
1652 {
1653         uint16_t response;
1654         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1655         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1656         enum drm_connector_status ret;
1657
1658         if (!intel_sdvo_get_value(intel_sdvo,
1659                                   SDVO_CMD_GET_ATTACHED_DISPLAYS,
1660                                   &response, 2))
1661                 return connector_status_unknown;
1662
1663         DRM_DEBUG_KMS("SDVO response %d %d [%x]\n",
1664                       response & 0xff, response >> 8,
1665                       intel_sdvo_connector->output_flag);
1666
1667         if (response == 0)
1668                 return connector_status_disconnected;
1669
1670         intel_sdvo->attached_output = response;
1671
1672         intel_sdvo->has_hdmi_monitor = false;
1673         intel_sdvo->has_hdmi_audio = false;
1674         intel_sdvo->rgb_quant_range_selectable = false;
1675
1676         if ((intel_sdvo_connector->output_flag & response) == 0)
1677                 ret = connector_status_disconnected;
1678         else if (IS_TMDS(intel_sdvo_connector))
1679                 ret = intel_sdvo_tmds_sink_detect(connector);
1680         else {
1681                 struct edid *edid;
1682
1683                 /* if we have an edid check it matches the connection */
1684                 edid = intel_sdvo_get_edid(connector);
1685                 if (edid == NULL)
1686                         edid = intel_sdvo_get_analog_edid(connector);
1687                 if (edid != NULL) {
1688                         if (intel_sdvo_connector_matches_edid(intel_sdvo_connector,
1689                                                               edid))
1690                                 ret = connector_status_connected;
1691                         else
1692                                 ret = connector_status_disconnected;
1693
1694                         kfree(edid);
1695                 } else
1696                         ret = connector_status_connected;
1697         }
1698
1699         /* May update encoder flag for like clock for SDVO TV, etc.*/
1700         if (ret == connector_status_connected) {
1701                 intel_sdvo->is_tv = false;
1702                 intel_sdvo->is_lvds = false;
1703
1704                 if (response & SDVO_TV_MASK)
1705                         intel_sdvo->is_tv = true;
1706                 if (response & SDVO_LVDS_MASK)
1707                         intel_sdvo->is_lvds = intel_sdvo->sdvo_lvds_fixed_mode != NULL;
1708         }
1709
1710         return ret;
1711 }
1712
1713 static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
1714 {
1715         struct edid *edid;
1716
1717         /* set the bus switch and get the modes */
1718         edid = intel_sdvo_get_edid(connector);
1719
1720         /*
1721          * Mac mini hack.  On this device, the DVI-I connector shares one DDC
1722          * link between analog and digital outputs. So, if the regular SDVO
1723          * DDC fails, check to see if the analog output is disconnected, in
1724          * which case we'll look there for the digital DDC data.
1725          */
1726         if (edid == NULL)
1727                 edid = intel_sdvo_get_analog_edid(connector);
1728
1729         if (edid != NULL) {
1730                 if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector),
1731                                                       edid)) {
1732                         drm_mode_connector_update_edid_property(connector, edid);
1733                         drm_add_edid_modes(connector, edid);
1734                 }
1735
1736                 kfree(edid);
1737         }
1738 }
1739
1740 /*
1741  * Set of SDVO TV modes.
1742  * Note!  This is in reply order (see loop in get_tv_modes).
1743  * XXX: all 60Hz refresh?
1744  */
1745 static const struct drm_display_mode sdvo_tv_modes[] = {
1746         { DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 5815, 320, 321, 384,
1747                    416, 0, 200, 201, 232, 233, 0,
1748                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1749         { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 6814, 320, 321, 384,
1750                    416, 0, 240, 241, 272, 273, 0,
1751                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1752         { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 9910, 400, 401, 464,
1753                    496, 0, 300, 301, 332, 333, 0,
1754                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1755         { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 16913, 640, 641, 704,
1756                    736, 0, 350, 351, 382, 383, 0,
1757                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1758         { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 19121, 640, 641, 704,
1759                    736, 0, 400, 401, 432, 433, 0,
1760                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1761         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 22654, 640, 641, 704,
1762                    736, 0, 480, 481, 512, 513, 0,
1763                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1764         { DRM_MODE("704x480", DRM_MODE_TYPE_DRIVER, 24624, 704, 705, 768,
1765                    800, 0, 480, 481, 512, 513, 0,
1766                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1767         { DRM_MODE("704x576", DRM_MODE_TYPE_DRIVER, 29232, 704, 705, 768,
1768                    800, 0, 576, 577, 608, 609, 0,
1769                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1770         { DRM_MODE("720x350", DRM_MODE_TYPE_DRIVER, 18751, 720, 721, 784,
1771                    816, 0, 350, 351, 382, 383, 0,
1772                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1773         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 21199, 720, 721, 784,
1774                    816, 0, 400, 401, 432, 433, 0,
1775                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1776         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 25116, 720, 721, 784,
1777                    816, 0, 480, 481, 512, 513, 0,
1778                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1779         { DRM_MODE("720x540", DRM_MODE_TYPE_DRIVER, 28054, 720, 721, 784,
1780                    816, 0, 540, 541, 572, 573, 0,
1781                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1782         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 29816, 720, 721, 784,
1783                    816, 0, 576, 577, 608, 609, 0,
1784                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1785         { DRM_MODE("768x576", DRM_MODE_TYPE_DRIVER, 31570, 768, 769, 832,
1786                    864, 0, 576, 577, 608, 609, 0,
1787                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1788         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 34030, 800, 801, 864,
1789                    896, 0, 600, 601, 632, 633, 0,
1790                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1791         { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 36581, 832, 833, 896,
1792                    928, 0, 624, 625, 656, 657, 0,
1793                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1794         { DRM_MODE("920x766", DRM_MODE_TYPE_DRIVER, 48707, 920, 921, 984,
1795                    1016, 0, 766, 767, 798, 799, 0,
1796                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1797         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 53827, 1024, 1025, 1088,
1798                    1120, 0, 768, 769, 800, 801, 0,
1799                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1800         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 87265, 1280, 1281, 1344,
1801                    1376, 0, 1024, 1025, 1056, 1057, 0,
1802                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1803 };
1804
1805 static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
1806 {
1807         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1808         struct intel_sdvo_sdtv_resolution_request tv_res;
1809         uint32_t reply = 0, format_map = 0;
1810         int i;
1811
1812         /* Read the list of supported input resolutions for the selected TV
1813          * format.
1814          */
1815         format_map = 1 << intel_sdvo->tv_format_index;
1816         memcpy(&tv_res, &format_map,
1817                min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request)));
1818
1819         if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo->attached_output))
1820                 return;
1821
1822         BUILD_BUG_ON(sizeof(tv_res) != 3);
1823         if (!intel_sdvo_write_cmd(intel_sdvo,
1824                                   SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT,
1825                                   &tv_res, sizeof(tv_res)))
1826                 return;
1827         if (!intel_sdvo_read_response(intel_sdvo, &reply, 3))
1828                 return;
1829
1830         for (i = 0; i < ARRAY_SIZE(sdvo_tv_modes); i++)
1831                 if (reply & (1 << i)) {
1832                         struct drm_display_mode *nmode;
1833                         nmode = drm_mode_duplicate(connector->dev,
1834                                                    &sdvo_tv_modes[i]);
1835                         if (nmode)
1836                                 drm_mode_probed_add(connector, nmode);
1837                 }
1838 }
1839
1840 static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
1841 {
1842         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1843         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1844         struct drm_display_mode *newmode;
1845
1846         /*
1847          * Attempt to get the mode list from DDC.
1848          * Assume that the preferred modes are
1849          * arranged in priority order.
1850          */
1851         intel_ddc_get_modes(connector, intel_sdvo->i2c);
1852         if (list_empty(&connector->probed_modes) == false)
1853                 goto end;
1854
1855         /* Fetch modes from VBT */
1856         if (dev_priv->vbt.sdvo_lvds_vbt_mode != NULL) {
1857                 newmode = drm_mode_duplicate(connector->dev,
1858                                              dev_priv->vbt.sdvo_lvds_vbt_mode);
1859                 if (newmode != NULL) {
1860                         /* Guarantee the mode is preferred */
1861                         newmode->type = (DRM_MODE_TYPE_PREFERRED |
1862                                          DRM_MODE_TYPE_DRIVER);
1863                         drm_mode_probed_add(connector, newmode);
1864                 }
1865         }
1866
1867 end:
1868         list_for_each_entry(newmode, &connector->probed_modes, head) {
1869                 if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
1870                         intel_sdvo->sdvo_lvds_fixed_mode =
1871                                 drm_mode_duplicate(connector->dev, newmode);
1872
1873                         intel_sdvo->is_lvds = true;
1874                         break;
1875                 }
1876         }
1877
1878 }
1879
1880 static int intel_sdvo_get_modes(struct drm_connector *connector)
1881 {
1882         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1883
1884         if (IS_TV(intel_sdvo_connector))
1885                 intel_sdvo_get_tv_modes(connector);
1886         else if (IS_LVDS(intel_sdvo_connector))
1887                 intel_sdvo_get_lvds_modes(connector);
1888         else
1889                 intel_sdvo_get_ddc_modes(connector);
1890
1891         return !list_empty(&connector->probed_modes);
1892 }
1893
1894 static void
1895 intel_sdvo_destroy_enhance_property(struct drm_connector *connector)
1896 {
1897         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1898         struct drm_device *dev = connector->dev;
1899
1900         if (intel_sdvo_connector->left)
1901                 drm_property_destroy(dev, intel_sdvo_connector->left);
1902         if (intel_sdvo_connector->right)
1903                 drm_property_destroy(dev, intel_sdvo_connector->right);
1904         if (intel_sdvo_connector->top)
1905                 drm_property_destroy(dev, intel_sdvo_connector->top);
1906         if (intel_sdvo_connector->bottom)
1907                 drm_property_destroy(dev, intel_sdvo_connector->bottom);
1908         if (intel_sdvo_connector->hpos)
1909                 drm_property_destroy(dev, intel_sdvo_connector->hpos);
1910         if (intel_sdvo_connector->vpos)
1911                 drm_property_destroy(dev, intel_sdvo_connector->vpos);
1912         if (intel_sdvo_connector->saturation)
1913                 drm_property_destroy(dev, intel_sdvo_connector->saturation);
1914         if (intel_sdvo_connector->contrast)
1915                 drm_property_destroy(dev, intel_sdvo_connector->contrast);
1916         if (intel_sdvo_connector->hue)
1917                 drm_property_destroy(dev, intel_sdvo_connector->hue);
1918         if (intel_sdvo_connector->sharpness)
1919                 drm_property_destroy(dev, intel_sdvo_connector->sharpness);
1920         if (intel_sdvo_connector->flicker_filter)
1921                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter);
1922         if (intel_sdvo_connector->flicker_filter_2d)
1923                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_2d);
1924         if (intel_sdvo_connector->flicker_filter_adaptive)
1925                 drm_property_destroy(dev, intel_sdvo_connector->flicker_filter_adaptive);
1926         if (intel_sdvo_connector->tv_luma_filter)
1927                 drm_property_destroy(dev, intel_sdvo_connector->tv_luma_filter);
1928         if (intel_sdvo_connector->tv_chroma_filter)
1929                 drm_property_destroy(dev, intel_sdvo_connector->tv_chroma_filter);
1930         if (intel_sdvo_connector->dot_crawl)
1931                 drm_property_destroy(dev, intel_sdvo_connector->dot_crawl);
1932         if (intel_sdvo_connector->brightness)
1933                 drm_property_destroy(dev, intel_sdvo_connector->brightness);
1934 }
1935
1936 static void intel_sdvo_destroy(struct drm_connector *connector)
1937 {
1938         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1939
1940         if (intel_sdvo_connector->tv_format)
1941                 drm_property_destroy(connector->dev,
1942                                      intel_sdvo_connector->tv_format);
1943
1944         intel_sdvo_destroy_enhance_property(connector);
1945         drm_sysfs_connector_remove(connector);
1946         drm_connector_cleanup(connector);
1947         kfree(intel_sdvo_connector);
1948 }
1949
1950 static bool intel_sdvo_detect_hdmi_audio(struct drm_connector *connector)
1951 {
1952         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1953         struct edid *edid;
1954         bool has_audio = false;
1955
1956         if (!intel_sdvo->is_hdmi)
1957                 return false;
1958
1959         edid = intel_sdvo_get_edid(connector);
1960         if (edid != NULL && edid->input & DRM_EDID_INPUT_DIGITAL)
1961                 has_audio = drm_detect_monitor_audio(edid);
1962         kfree(edid);
1963
1964         return has_audio;
1965 }
1966
1967 static int
1968 intel_sdvo_set_property(struct drm_connector *connector,
1969                         struct drm_property *property,
1970                         uint64_t val)
1971 {
1972         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1973         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1974         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1975         uint16_t temp_value;
1976         uint8_t cmd;
1977         int ret;
1978
1979         ret = drm_object_property_set_value(&connector->base, property, val);
1980         if (ret)
1981                 return ret;
1982
1983         if (property == dev_priv->force_audio_property) {
1984                 int i = val;
1985                 bool has_audio;
1986
1987                 if (i == intel_sdvo_connector->force_audio)
1988                         return 0;
1989
1990                 intel_sdvo_connector->force_audio = i;
1991
1992                 if (i == HDMI_AUDIO_AUTO)
1993                         has_audio = intel_sdvo_detect_hdmi_audio(connector);
1994                 else
1995                         has_audio = (i == HDMI_AUDIO_ON);
1996
1997                 if (has_audio == intel_sdvo->has_hdmi_audio)
1998                         return 0;
1999
2000                 intel_sdvo->has_hdmi_audio = has_audio;
2001                 goto done;
2002         }
2003
2004         if (property == dev_priv->broadcast_rgb_property) {
2005                 bool old_auto = intel_sdvo->color_range_auto;
2006                 uint32_t old_range = intel_sdvo->color_range;
2007
2008                 switch (val) {
2009                 case INTEL_BROADCAST_RGB_AUTO:
2010                         intel_sdvo->color_range_auto = true;
2011                         break;
2012                 case INTEL_BROADCAST_RGB_FULL:
2013                         intel_sdvo->color_range_auto = false;
2014                         intel_sdvo->color_range = 0;
2015                         break;
2016                 case INTEL_BROADCAST_RGB_LIMITED:
2017                         intel_sdvo->color_range_auto = false;
2018                         /* FIXME: this bit is only valid when using TMDS
2019                          * encoding and 8 bit per color mode. */
2020                         intel_sdvo->color_range = HDMI_COLOR_RANGE_16_235;
2021                         break;
2022                 default:
2023                         return -EINVAL;
2024                 }
2025
2026                 if (old_auto == intel_sdvo->color_range_auto &&
2027                     old_range == intel_sdvo->color_range)
2028                         return 0;
2029
2030                 goto done;
2031         }
2032
2033 #define CHECK_PROPERTY(name, NAME) \
2034         if (intel_sdvo_connector->name == property) { \
2035                 if (intel_sdvo_connector->cur_##name == temp_value) return 0; \
2036                 if (intel_sdvo_connector->max_##name < temp_value) return -EINVAL; \
2037                 cmd = SDVO_CMD_SET_##NAME; \
2038                 intel_sdvo_connector->cur_##name = temp_value; \
2039                 goto set_value; \
2040         }
2041
2042         if (property == intel_sdvo_connector->tv_format) {
2043                 if (val >= TV_FORMAT_NUM)
2044                         return -EINVAL;
2045
2046                 if (intel_sdvo->tv_format_index ==
2047                     intel_sdvo_connector->tv_format_supported[val])
2048                         return 0;
2049
2050                 intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[val];
2051                 goto done;
2052         } else if (IS_TV_OR_LVDS(intel_sdvo_connector)) {
2053                 temp_value = val;
2054                 if (intel_sdvo_connector->left == property) {
2055                         drm_object_property_set_value(&connector->base,
2056                                                          intel_sdvo_connector->right, val);
2057                         if (intel_sdvo_connector->left_margin == temp_value)
2058                                 return 0;
2059
2060                         intel_sdvo_connector->left_margin = temp_value;
2061                         intel_sdvo_connector->right_margin = temp_value;
2062                         temp_value = intel_sdvo_connector->max_hscan -
2063                                 intel_sdvo_connector->left_margin;
2064                         cmd = SDVO_CMD_SET_OVERSCAN_H;
2065                         goto set_value;
2066                 } else if (intel_sdvo_connector->right == property) {
2067                         drm_object_property_set_value(&connector->base,
2068                                                          intel_sdvo_connector->left, val);
2069                         if (intel_sdvo_connector->right_margin == temp_value)
2070                                 return 0;
2071
2072                         intel_sdvo_connector->left_margin = temp_value;
2073                         intel_sdvo_connector->right_margin = temp_value;
2074                         temp_value = intel_sdvo_connector->max_hscan -
2075                                 intel_sdvo_connector->left_margin;
2076                         cmd = SDVO_CMD_SET_OVERSCAN_H;
2077                         goto set_value;
2078                 } else if (intel_sdvo_connector->top == property) {
2079                         drm_object_property_set_value(&connector->base,
2080                                                          intel_sdvo_connector->bottom, val);
2081                         if (intel_sdvo_connector->top_margin == temp_value)
2082                                 return 0;
2083
2084                         intel_sdvo_connector->top_margin = temp_value;
2085                         intel_sdvo_connector->bottom_margin = temp_value;
2086                         temp_value = intel_sdvo_connector->max_vscan -
2087                                 intel_sdvo_connector->top_margin;
2088                         cmd = SDVO_CMD_SET_OVERSCAN_V;
2089                         goto set_value;
2090                 } else if (intel_sdvo_connector->bottom == property) {
2091                         drm_object_property_set_value(&connector->base,
2092                                                          intel_sdvo_connector->top, val);
2093                         if (intel_sdvo_connector->bottom_margin == temp_value)
2094                                 return 0;
2095
2096                         intel_sdvo_connector->top_margin = temp_value;
2097                         intel_sdvo_connector->bottom_margin = temp_value;
2098                         temp_value = intel_sdvo_connector->max_vscan -
2099                                 intel_sdvo_connector->top_margin;
2100                         cmd = SDVO_CMD_SET_OVERSCAN_V;
2101                         goto set_value;
2102                 }
2103                 CHECK_PROPERTY(hpos, HPOS)
2104                 CHECK_PROPERTY(vpos, VPOS)
2105                 CHECK_PROPERTY(saturation, SATURATION)
2106                 CHECK_PROPERTY(contrast, CONTRAST)
2107                 CHECK_PROPERTY(hue, HUE)
2108                 CHECK_PROPERTY(brightness, BRIGHTNESS)
2109                 CHECK_PROPERTY(sharpness, SHARPNESS)
2110                 CHECK_PROPERTY(flicker_filter, FLICKER_FILTER)
2111                 CHECK_PROPERTY(flicker_filter_2d, FLICKER_FILTER_2D)
2112                 CHECK_PROPERTY(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE)
2113                 CHECK_PROPERTY(tv_chroma_filter, TV_CHROMA_FILTER)
2114                 CHECK_PROPERTY(tv_luma_filter, TV_LUMA_FILTER)
2115                 CHECK_PROPERTY(dot_crawl, DOT_CRAWL)
2116         }
2117
2118         return -EINVAL; /* unknown property */
2119
2120 set_value:
2121         if (!intel_sdvo_set_value(intel_sdvo, cmd, &temp_value, 2))
2122                 return -EIO;
2123
2124
2125 done:
2126         if (intel_sdvo->base.base.crtc)
2127                 intel_crtc_restore_mode(intel_sdvo->base.base.crtc);
2128
2129         return 0;
2130 #undef CHECK_PROPERTY
2131 }
2132
2133 static const struct drm_connector_funcs intel_sdvo_connector_funcs = {
2134         .dpms = intel_sdvo_dpms,
2135         .detect = intel_sdvo_detect,
2136         .fill_modes = drm_helper_probe_single_connector_modes,
2137         .set_property = intel_sdvo_set_property,
2138         .destroy = intel_sdvo_destroy,
2139 };
2140
2141 static const struct drm_connector_helper_funcs intel_sdvo_connector_helper_funcs = {
2142         .get_modes = intel_sdvo_get_modes,
2143         .mode_valid = intel_sdvo_mode_valid,
2144         .best_encoder = intel_best_encoder,
2145 };
2146
2147 static void intel_sdvo_enc_destroy(struct drm_encoder *encoder)
2148 {
2149         struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
2150
2151         if (intel_sdvo->sdvo_lvds_fixed_mode != NULL)
2152                 drm_mode_destroy(encoder->dev,
2153                                  intel_sdvo->sdvo_lvds_fixed_mode);
2154
2155         i2c_del_adapter(&intel_sdvo->ddc);
2156         intel_encoder_destroy(encoder);
2157 }
2158
2159 static const struct drm_encoder_funcs intel_sdvo_enc_funcs = {
2160         .destroy = intel_sdvo_enc_destroy,
2161 };
2162
2163 static void
2164 intel_sdvo_guess_ddc_bus(struct intel_sdvo *sdvo)
2165 {
2166         uint16_t mask = 0;
2167         unsigned int num_bits;
2168
2169         /* Make a mask of outputs less than or equal to our own priority in the
2170          * list.
2171          */
2172         switch (sdvo->controlled_output) {
2173         case SDVO_OUTPUT_LVDS1:
2174                 mask |= SDVO_OUTPUT_LVDS1;
2175         case SDVO_OUTPUT_LVDS0:
2176                 mask |= SDVO_OUTPUT_LVDS0;
2177         case SDVO_OUTPUT_TMDS1:
2178                 mask |= SDVO_OUTPUT_TMDS1;
2179         case SDVO_OUTPUT_TMDS0:
2180                 mask |= SDVO_OUTPUT_TMDS0;
2181         case SDVO_OUTPUT_RGB1:
2182                 mask |= SDVO_OUTPUT_RGB1;
2183         case SDVO_OUTPUT_RGB0:
2184                 mask |= SDVO_OUTPUT_RGB0;
2185                 break;
2186         }
2187
2188         /* Count bits to find what number we are in the priority list. */
2189         mask &= sdvo->caps.output_flags;
2190         num_bits = hweight16(mask);
2191         /* If more than 3 outputs, default to DDC bus 3 for now. */
2192         if (num_bits > 3)
2193                 num_bits = 3;
2194
2195         /* Corresponds to SDVO_CONTROL_BUS_DDCx */
2196         sdvo->ddc_bus = 1 << num_bits;
2197 }
2198
2199 /**
2200  * Choose the appropriate DDC bus for control bus switch command for this
2201  * SDVO output based on the controlled output.
2202  *
2203  * DDC bus number assignment is in a priority order of RGB outputs, then TMDS
2204  * outputs, then LVDS outputs.
2205  */
2206 static void
2207 intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv,
2208                           struct intel_sdvo *sdvo, u32 reg)
2209 {
2210         struct sdvo_device_mapping *mapping;
2211
2212         if (sdvo->is_sdvob)
2213                 mapping = &(dev_priv->sdvo_mappings[0]);
2214         else
2215                 mapping = &(dev_priv->sdvo_mappings[1]);
2216
2217         if (mapping->initialized)
2218                 sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
2219         else
2220                 intel_sdvo_guess_ddc_bus(sdvo);
2221 }
2222
2223 static void
2224 intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
2225                           struct intel_sdvo *sdvo, u32 reg)
2226 {
2227         struct sdvo_device_mapping *mapping;
2228         u8 pin;
2229
2230         if (sdvo->is_sdvob)
2231                 mapping = &dev_priv->sdvo_mappings[0];
2232         else
2233                 mapping = &dev_priv->sdvo_mappings[1];
2234
2235         if (mapping->initialized && intel_gmbus_is_port_valid(mapping->i2c_pin))
2236                 pin = mapping->i2c_pin;
2237         else
2238                 pin = GMBUS_PORT_DPB;
2239
2240         sdvo->i2c = intel_gmbus_get_adapter(dev_priv, pin);
2241
2242         /* With gmbus we should be able to drive sdvo i2c at 2MHz, but somehow
2243          * our code totally fails once we start using gmbus. Hence fall back to
2244          * bit banging for now. */
2245         intel_gmbus_force_bit(sdvo->i2c, true);
2246 }
2247
2248 /* undo any changes intel_sdvo_select_i2c_bus() did to sdvo->i2c */
2249 static void
2250 intel_sdvo_unselect_i2c_bus(struct intel_sdvo *sdvo)
2251 {
2252         intel_gmbus_force_bit(sdvo->i2c, false);
2253 }
2254
2255 static bool
2256 intel_sdvo_is_hdmi_connector(struct intel_sdvo *intel_sdvo, int device)
2257 {
2258         return intel_sdvo_check_supp_encode(intel_sdvo);
2259 }
2260
2261 static u8
2262 intel_sdvo_get_slave_addr(struct drm_device *dev, struct intel_sdvo *sdvo)
2263 {
2264         struct drm_i915_private *dev_priv = dev->dev_private;
2265         struct sdvo_device_mapping *my_mapping, *other_mapping;
2266
2267         if (sdvo->is_sdvob) {
2268                 my_mapping = &dev_priv->sdvo_mappings[0];
2269                 other_mapping = &dev_priv->sdvo_mappings[1];
2270         } else {
2271                 my_mapping = &dev_priv->sdvo_mappings[1];
2272                 other_mapping = &dev_priv->sdvo_mappings[0];
2273         }
2274
2275         /* If the BIOS described our SDVO device, take advantage of it. */
2276         if (my_mapping->slave_addr)
2277                 return my_mapping->slave_addr;
2278
2279         /* If the BIOS only described a different SDVO device, use the
2280          * address that it isn't using.
2281          */
2282         if (other_mapping->slave_addr) {
2283                 if (other_mapping->slave_addr == 0x70)
2284                         return 0x72;
2285                 else
2286                         return 0x70;
2287         }
2288
2289         /* No SDVO device info is found for another DVO port,
2290          * so use mapping assumption we had before BIOS parsing.
2291          */
2292         if (sdvo->is_sdvob)
2293                 return 0x70;
2294         else
2295                 return 0x72;
2296 }
2297
2298 static void
2299 intel_sdvo_connector_init(struct intel_sdvo_connector *connector,
2300                           struct intel_sdvo *encoder)
2301 {
2302         drm_connector_init(encoder->base.base.dev,
2303                            &connector->base.base,
2304                            &intel_sdvo_connector_funcs,
2305                            connector->base.base.connector_type);
2306
2307         drm_connector_helper_add(&connector->base.base,
2308                                  &intel_sdvo_connector_helper_funcs);
2309
2310         connector->base.base.interlace_allowed = 1;
2311         connector->base.base.doublescan_allowed = 0;
2312         connector->base.base.display_info.subpixel_order = SubPixelHorizontalRGB;
2313         connector->base.get_hw_state = intel_sdvo_connector_get_hw_state;
2314
2315         intel_connector_attach_encoder(&connector->base, &encoder->base);
2316         drm_sysfs_connector_add(&connector->base.base);
2317 }
2318
2319 static void
2320 intel_sdvo_add_hdmi_properties(struct intel_sdvo *intel_sdvo,
2321                                struct intel_sdvo_connector *connector)
2322 {
2323         struct drm_device *dev = connector->base.base.dev;
2324
2325         intel_attach_force_audio_property(&connector->base.base);
2326         if (INTEL_INFO(dev)->gen >= 4 && IS_MOBILE(dev)) {
2327                 intel_attach_broadcast_rgb_property(&connector->base.base);
2328                 intel_sdvo->color_range_auto = true;
2329         }
2330 }
2331
2332 static bool
2333 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
2334 {
2335         struct drm_encoder *encoder = &intel_sdvo->base.base;
2336         struct drm_connector *connector;
2337         struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
2338         struct intel_connector *intel_connector;
2339         struct intel_sdvo_connector *intel_sdvo_connector;
2340
2341         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2342         if (!intel_sdvo_connector)
2343                 return false;
2344
2345         if (device == 0) {
2346                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS0;
2347                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS0;
2348         } else if (device == 1) {
2349                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS1;
2350                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS1;
2351         }
2352
2353         intel_connector = &intel_sdvo_connector->base;
2354         connector = &intel_connector->base;
2355         if (intel_sdvo_get_hotplug_support(intel_sdvo) &
2356                 intel_sdvo_connector->output_flag) {
2357                 intel_sdvo->hotplug_active |= intel_sdvo_connector->output_flag;
2358                 /* Some SDVO devices have one-shot hotplug interrupts.
2359                  * Ensure that they get re-enabled when an interrupt happens.
2360                  */
2361                 intel_encoder->hot_plug = intel_sdvo_enable_hotplug;
2362                 intel_sdvo_enable_hotplug(intel_encoder);
2363         } else {
2364                 intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
2365         }
2366         encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
2367         connector->connector_type = DRM_MODE_CONNECTOR_DVID;
2368
2369         if (intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
2370                 connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
2371                 intel_sdvo->is_hdmi = true;
2372         }
2373
2374         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2375         if (intel_sdvo->is_hdmi)
2376                 intel_sdvo_add_hdmi_properties(intel_sdvo, intel_sdvo_connector);
2377
2378         return true;
2379 }
2380
2381 static bool
2382 intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
2383 {
2384         struct drm_encoder *encoder = &intel_sdvo->base.base;
2385         struct drm_connector *connector;
2386         struct intel_connector *intel_connector;
2387         struct intel_sdvo_connector *intel_sdvo_connector;
2388
2389         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2390         if (!intel_sdvo_connector)
2391                 return false;
2392
2393         intel_connector = &intel_sdvo_connector->base;
2394         connector = &intel_connector->base;
2395         encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
2396         connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
2397
2398         intel_sdvo->controlled_output |= type;
2399         intel_sdvo_connector->output_flag = type;
2400
2401         intel_sdvo->is_tv = true;
2402
2403         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2404
2405         if (!intel_sdvo_tv_create_property(intel_sdvo, intel_sdvo_connector, type))
2406                 goto err;
2407
2408         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2409                 goto err;
2410
2411         return true;
2412
2413 err:
2414         intel_sdvo_destroy(connector);
2415         return false;
2416 }
2417
2418 static bool
2419 intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device)
2420 {
2421         struct drm_encoder *encoder = &intel_sdvo->base.base;
2422         struct drm_connector *connector;
2423         struct intel_connector *intel_connector;
2424         struct intel_sdvo_connector *intel_sdvo_connector;
2425
2426         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2427         if (!intel_sdvo_connector)
2428                 return false;
2429
2430         intel_connector = &intel_sdvo_connector->base;
2431         connector = &intel_connector->base;
2432         intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT;
2433         encoder->encoder_type = DRM_MODE_ENCODER_DAC;
2434         connector->connector_type = DRM_MODE_CONNECTOR_VGA;
2435
2436         if (device == 0) {
2437                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB0;
2438                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB0;
2439         } else if (device == 1) {
2440                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB1;
2441                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1;
2442         }
2443
2444         intel_sdvo_connector_init(intel_sdvo_connector,
2445                                   intel_sdvo);
2446         return true;
2447 }
2448
2449 static bool
2450 intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
2451 {
2452         struct drm_encoder *encoder = &intel_sdvo->base.base;
2453         struct drm_connector *connector;
2454         struct intel_connector *intel_connector;
2455         struct intel_sdvo_connector *intel_sdvo_connector;
2456
2457         intel_sdvo_connector = kzalloc(sizeof(struct intel_sdvo_connector), GFP_KERNEL);
2458         if (!intel_sdvo_connector)
2459                 return false;
2460
2461         intel_connector = &intel_sdvo_connector->base;
2462         connector = &intel_connector->base;
2463         encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
2464         connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
2465
2466         if (device == 0) {
2467                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS0;
2468                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS0;
2469         } else if (device == 1) {
2470                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS1;
2471                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1;
2472         }
2473
2474         intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
2475         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2476                 goto err;
2477
2478         return true;
2479
2480 err:
2481         intel_sdvo_destroy(connector);
2482         return false;
2483 }
2484
2485 static bool
2486 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
2487 {
2488         intel_sdvo->is_tv = false;
2489         intel_sdvo->is_lvds = false;
2490
2491         /* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
2492
2493         if (flags & SDVO_OUTPUT_TMDS0)
2494                 if (!intel_sdvo_dvi_init(intel_sdvo, 0))
2495                         return false;
2496
2497         if ((flags & SDVO_TMDS_MASK) == SDVO_TMDS_MASK)
2498                 if (!intel_sdvo_dvi_init(intel_sdvo, 1))
2499                         return false;
2500
2501         /* TV has no XXX1 function block */
2502         if (flags & SDVO_OUTPUT_SVID0)
2503                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_SVID0))
2504                         return false;
2505
2506         if (flags & SDVO_OUTPUT_CVBS0)
2507                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_CVBS0))
2508                         return false;
2509
2510         if (flags & SDVO_OUTPUT_YPRPB0)
2511                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_YPRPB0))
2512                         return false;
2513
2514         if (flags & SDVO_OUTPUT_RGB0)
2515                 if (!intel_sdvo_analog_init(intel_sdvo, 0))
2516                         return false;
2517
2518         if ((flags & SDVO_RGB_MASK) == SDVO_RGB_MASK)
2519                 if (!intel_sdvo_analog_init(intel_sdvo, 1))
2520                         return false;
2521
2522         if (flags & SDVO_OUTPUT_LVDS0)
2523                 if (!intel_sdvo_lvds_init(intel_sdvo, 0))
2524                         return false;
2525
2526         if ((flags & SDVO_LVDS_MASK) == SDVO_LVDS_MASK)
2527                 if (!intel_sdvo_lvds_init(intel_sdvo, 1))
2528                         return false;
2529
2530         if ((flags & SDVO_OUTPUT_MASK) == 0) {
2531                 unsigned char bytes[2];
2532
2533                 intel_sdvo->controlled_output = 0;
2534                 memcpy(bytes, &intel_sdvo->caps.output_flags, 2);
2535                 DRM_DEBUG_KMS("%s: Unknown SDVO output type (0x%02x%02x)\n",
2536                               SDVO_NAME(intel_sdvo),
2537                               bytes[0], bytes[1]);
2538                 return false;
2539         }
2540         intel_sdvo->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
2541
2542         return true;
2543 }
2544
2545 static void intel_sdvo_output_cleanup(struct intel_sdvo *intel_sdvo)
2546 {
2547         struct drm_device *dev = intel_sdvo->base.base.dev;
2548         struct drm_connector *connector, *tmp;
2549
2550         list_for_each_entry_safe(connector, tmp,
2551                                  &dev->mode_config.connector_list, head) {
2552                 if (intel_attached_encoder(connector) == &intel_sdvo->base)
2553                         intel_sdvo_destroy(connector);
2554         }
2555 }
2556
2557 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
2558                                           struct intel_sdvo_connector *intel_sdvo_connector,
2559                                           int type)
2560 {
2561         struct drm_device *dev = intel_sdvo->base.base.dev;
2562         struct intel_sdvo_tv_format format;
2563         uint32_t format_map, i;
2564
2565         if (!intel_sdvo_set_target_output(intel_sdvo, type))
2566                 return false;
2567
2568         BUILD_BUG_ON(sizeof(format) != 6);
2569         if (!intel_sdvo_get_value(intel_sdvo,
2570                                   SDVO_CMD_GET_SUPPORTED_TV_FORMATS,
2571                                   &format, sizeof(format)))
2572                 return false;
2573
2574         memcpy(&format_map, &format, min(sizeof(format_map), sizeof(format)));
2575
2576         if (format_map == 0)
2577                 return false;
2578
2579         intel_sdvo_connector->format_supported_num = 0;
2580         for (i = 0 ; i < TV_FORMAT_NUM; i++)
2581                 if (format_map & (1 << i))
2582                         intel_sdvo_connector->tv_format_supported[intel_sdvo_connector->format_supported_num++] = i;
2583
2584
2585         intel_sdvo_connector->tv_format =
2586                         drm_property_create(dev, DRM_MODE_PROP_ENUM,
2587                                             "mode", intel_sdvo_connector->format_supported_num);
2588         if (!intel_sdvo_connector->tv_format)
2589                 return false;
2590
2591         for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
2592                 drm_property_add_enum(
2593                                 intel_sdvo_connector->tv_format, i,
2594                                 i, tv_format_names[intel_sdvo_connector->tv_format_supported[i]]);
2595
2596         intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[0];
2597         drm_object_attach_property(&intel_sdvo_connector->base.base.base,
2598                                       intel_sdvo_connector->tv_format, 0);
2599         return true;
2600
2601 }
2602
2603 #define ENHANCEMENT(name, NAME) do { \
2604         if (enhancements.name) { \
2605                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_MAX_##NAME, &data_value, 4) || \
2606                     !intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_##NAME, &response, 2)) \
2607                         return false; \
2608                 intel_sdvo_connector->max_##name = data_value[0]; \
2609                 intel_sdvo_connector->cur_##name = response; \
2610                 intel_sdvo_connector->name = \
2611                         drm_property_create_range(dev, 0, #name, 0, data_value[0]); \
2612                 if (!intel_sdvo_connector->name) return false; \
2613                 drm_object_attach_property(&connector->base, \
2614                                               intel_sdvo_connector->name, \
2615                                               intel_sdvo_connector->cur_##name); \
2616                 DRM_DEBUG_KMS(#name ": max %d, default %d, current %d\n", \
2617                               data_value[0], data_value[1], response); \
2618         } \
2619 } while (0)
2620
2621 static bool
2622 intel_sdvo_create_enhance_property_tv(struct intel_sdvo *intel_sdvo,
2623                                       struct intel_sdvo_connector *intel_sdvo_connector,
2624                                       struct intel_sdvo_enhancements_reply enhancements)
2625 {
2626         struct drm_device *dev = intel_sdvo->base.base.dev;
2627         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2628         uint16_t response, data_value[2];
2629
2630         /* when horizontal overscan is supported, Add the left/right  property */
2631         if (enhancements.overscan_h) {
2632                 if (!intel_sdvo_get_value(intel_sdvo,
2633                                           SDVO_CMD_GET_MAX_OVERSCAN_H,
2634                                           &data_value, 4))
2635                         return false;
2636
2637                 if (!intel_sdvo_get_value(intel_sdvo,
2638                                           SDVO_CMD_GET_OVERSCAN_H,
2639                                           &response, 2))
2640                         return false;
2641
2642                 intel_sdvo_connector->max_hscan = data_value[0];
2643                 intel_sdvo_connector->left_margin = data_value[0] - response;
2644                 intel_sdvo_connector->right_margin = intel_sdvo_connector->left_margin;
2645                 intel_sdvo_connector->left =
2646                         drm_property_create_range(dev, 0, "left_margin", 0, data_value[0]);
2647                 if (!intel_sdvo_connector->left)
2648                         return false;
2649
2650                 drm_object_attach_property(&connector->base,
2651                                               intel_sdvo_connector->left,
2652                                               intel_sdvo_connector->left_margin);
2653
2654                 intel_sdvo_connector->right =
2655                         drm_property_create_range(dev, 0, "right_margin", 0, data_value[0]);
2656                 if (!intel_sdvo_connector->right)
2657                         return false;
2658
2659                 drm_object_attach_property(&connector->base,
2660                                               intel_sdvo_connector->right,
2661                                               intel_sdvo_connector->right_margin);
2662                 DRM_DEBUG_KMS("h_overscan: max %d, "
2663                               "default %d, current %d\n",
2664                               data_value[0], data_value[1], response);
2665         }
2666
2667         if (enhancements.overscan_v) {
2668                 if (!intel_sdvo_get_value(intel_sdvo,
2669                                           SDVO_CMD_GET_MAX_OVERSCAN_V,
2670                                           &data_value, 4))
2671                         return false;
2672
2673                 if (!intel_sdvo_get_value(intel_sdvo,
2674                                           SDVO_CMD_GET_OVERSCAN_V,
2675                                           &response, 2))
2676                         return false;
2677
2678                 intel_sdvo_connector->max_vscan = data_value[0];
2679                 intel_sdvo_connector->top_margin = data_value[0] - response;
2680                 intel_sdvo_connector->bottom_margin = intel_sdvo_connector->top_margin;
2681                 intel_sdvo_connector->top =
2682                         drm_property_create_range(dev, 0,
2683                                             "top_margin", 0, data_value[0]);
2684                 if (!intel_sdvo_connector->top)
2685                         return false;
2686
2687                 drm_object_attach_property(&connector->base,
2688                                               intel_sdvo_connector->top,
2689                                               intel_sdvo_connector->top_margin);
2690
2691                 intel_sdvo_connector->bottom =
2692                         drm_property_create_range(dev, 0,
2693                                             "bottom_margin", 0, data_value[0]);
2694                 if (!intel_sdvo_connector->bottom)
2695                         return false;
2696
2697                 drm_object_attach_property(&connector->base,
2698                                               intel_sdvo_connector->bottom,
2699                                               intel_sdvo_connector->bottom_margin);
2700                 DRM_DEBUG_KMS("v_overscan: max %d, "
2701                               "default %d, current %d\n",
2702                               data_value[0], data_value[1], response);
2703         }
2704
2705         ENHANCEMENT(hpos, HPOS);
2706         ENHANCEMENT(vpos, VPOS);
2707         ENHANCEMENT(saturation, SATURATION);
2708         ENHANCEMENT(contrast, CONTRAST);
2709         ENHANCEMENT(hue, HUE);
2710         ENHANCEMENT(sharpness, SHARPNESS);
2711         ENHANCEMENT(brightness, BRIGHTNESS);
2712         ENHANCEMENT(flicker_filter, FLICKER_FILTER);
2713         ENHANCEMENT(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
2714         ENHANCEMENT(flicker_filter_2d, FLICKER_FILTER_2D);
2715         ENHANCEMENT(tv_chroma_filter, TV_CHROMA_FILTER);
2716         ENHANCEMENT(tv_luma_filter, TV_LUMA_FILTER);
2717
2718         if (enhancements.dot_crawl) {
2719                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_DOT_CRAWL, &response, 2))
2720                         return false;
2721
2722                 intel_sdvo_connector->max_dot_crawl = 1;
2723                 intel_sdvo_connector->cur_dot_crawl = response & 0x1;
2724                 intel_sdvo_connector->dot_crawl =
2725                         drm_property_create_range(dev, 0, "dot_crawl", 0, 1);
2726                 if (!intel_sdvo_connector->dot_crawl)
2727                         return false;
2728
2729                 drm_object_attach_property(&connector->base,
2730                                               intel_sdvo_connector->dot_crawl,
2731                                               intel_sdvo_connector->cur_dot_crawl);
2732                 DRM_DEBUG_KMS("dot crawl: current %d\n", response);
2733         }
2734
2735         return true;
2736 }
2737
2738 static bool
2739 intel_sdvo_create_enhance_property_lvds(struct intel_sdvo *intel_sdvo,
2740                                         struct intel_sdvo_connector *intel_sdvo_connector,
2741                                         struct intel_sdvo_enhancements_reply enhancements)
2742 {
2743         struct drm_device *dev = intel_sdvo->base.base.dev;
2744         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2745         uint16_t response, data_value[2];
2746
2747         ENHANCEMENT(brightness, BRIGHTNESS);
2748
2749         return true;
2750 }
2751 #undef ENHANCEMENT
2752
2753 static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
2754                                                struct intel_sdvo_connector *intel_sdvo_connector)
2755 {
2756         union {
2757                 struct intel_sdvo_enhancements_reply reply;
2758                 uint16_t response;
2759         } enhancements;
2760
2761         BUILD_BUG_ON(sizeof(enhancements) != 2);
2762
2763         enhancements.response = 0;
2764         intel_sdvo_get_value(intel_sdvo,
2765                              SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
2766                              &enhancements, sizeof(enhancements));
2767         if (enhancements.response == 0) {
2768                 DRM_DEBUG_KMS("No enhancement is supported\n");
2769                 return true;
2770         }
2771
2772         if (IS_TV(intel_sdvo_connector))
2773                 return intel_sdvo_create_enhance_property_tv(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2774         else if (IS_LVDS(intel_sdvo_connector))
2775                 return intel_sdvo_create_enhance_property_lvds(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2776         else
2777                 return true;
2778 }
2779
2780 static int intel_sdvo_ddc_proxy_xfer(struct i2c_adapter *adapter,
2781                                      struct i2c_msg *msgs,
2782                                      int num)
2783 {
2784         struct intel_sdvo *sdvo = adapter->algo_data;
2785
2786         if (!intel_sdvo_set_control_bus_switch(sdvo, sdvo->ddc_bus))
2787                 return -EIO;
2788
2789         return sdvo->i2c->algo->master_xfer(sdvo->i2c, msgs, num);
2790 }
2791
2792 static u32 intel_sdvo_ddc_proxy_func(struct i2c_adapter *adapter)
2793 {
2794         struct intel_sdvo *sdvo = adapter->algo_data;
2795         return sdvo->i2c->algo->functionality(sdvo->i2c);
2796 }
2797
2798 static const struct i2c_algorithm intel_sdvo_ddc_proxy = {
2799         .master_xfer    = intel_sdvo_ddc_proxy_xfer,
2800         .functionality  = intel_sdvo_ddc_proxy_func
2801 };
2802
2803 static bool
2804 intel_sdvo_init_ddc_proxy(struct intel_sdvo *sdvo,
2805                           struct drm_device *dev)
2806 {
2807         sdvo->ddc.owner = THIS_MODULE;
2808         sdvo->ddc.class = I2C_CLASS_DDC;
2809         snprintf(sdvo->ddc.name, I2C_NAME_SIZE, "SDVO DDC proxy");
2810         sdvo->ddc.dev.parent = &dev->pdev->dev;
2811         sdvo->ddc.algo_data = sdvo;
2812         sdvo->ddc.algo = &intel_sdvo_ddc_proxy;
2813
2814         return i2c_add_adapter(&sdvo->ddc) == 0;
2815 }
2816
2817 bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
2818 {
2819         struct drm_i915_private *dev_priv = dev->dev_private;
2820         struct intel_encoder *intel_encoder;
2821         struct intel_sdvo *intel_sdvo;
2822         u32 hotplug_mask;
2823         int i;
2824         intel_sdvo = kzalloc(sizeof(struct intel_sdvo), GFP_KERNEL);
2825         if (!intel_sdvo)
2826                 return false;
2827
2828         intel_sdvo->sdvo_reg = sdvo_reg;
2829         intel_sdvo->is_sdvob = is_sdvob;
2830         intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(dev, intel_sdvo) >> 1;
2831         intel_sdvo_select_i2c_bus(dev_priv, intel_sdvo, sdvo_reg);
2832         if (!intel_sdvo_init_ddc_proxy(intel_sdvo, dev))
2833                 goto err_i2c_bus;
2834
2835         /* encoder type will be decided later */
2836         intel_encoder = &intel_sdvo->base;
2837         intel_encoder->type = INTEL_OUTPUT_SDVO;
2838         drm_encoder_init(dev, &intel_encoder->base, &intel_sdvo_enc_funcs, 0);
2839
2840         /* Read the regs to test if we can talk to the device */
2841         for (i = 0; i < 0x40; i++) {
2842                 u8 byte;
2843
2844                 if (!intel_sdvo_read_byte(intel_sdvo, i, &byte)) {
2845                         DRM_DEBUG_KMS("No SDVO device found on %s\n",
2846                                       SDVO_NAME(intel_sdvo));
2847                         goto err;
2848                 }
2849         }
2850
2851         hotplug_mask = 0;
2852         if (IS_G4X(dev)) {
2853                 hotplug_mask = intel_sdvo->is_sdvob ?
2854                         SDVOB_HOTPLUG_INT_STATUS_G4X : SDVOC_HOTPLUG_INT_STATUS_G4X;
2855         } else if (IS_GEN4(dev)) {
2856                 hotplug_mask = intel_sdvo->is_sdvob ?
2857                         SDVOB_HOTPLUG_INT_STATUS_I965 : SDVOC_HOTPLUG_INT_STATUS_I965;
2858         } else {
2859                 hotplug_mask = intel_sdvo->is_sdvob ?
2860                         SDVOB_HOTPLUG_INT_STATUS_I915 : SDVOC_HOTPLUG_INT_STATUS_I915;
2861         }
2862
2863         /* Only enable the hotplug irq if we need it, to work around noisy
2864          * hotplug lines.
2865          */
2866         if (intel_sdvo->hotplug_active)
2867                 intel_encoder->hpd_pin = HPD_SDVO_B ? HPD_SDVO_B : HPD_SDVO_C;
2868
2869         intel_encoder->compute_config = intel_sdvo_compute_config;
2870         intel_encoder->disable = intel_disable_sdvo;
2871         intel_encoder->mode_set = intel_sdvo_mode_set;
2872         intel_encoder->enable = intel_enable_sdvo;
2873         intel_encoder->get_hw_state = intel_sdvo_get_hw_state;
2874         intel_encoder->get_config = intel_sdvo_get_config;
2875
2876         /* In default case sdvo lvds is false */
2877         if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
2878                 goto err;
2879
2880         if (intel_sdvo_output_setup(intel_sdvo,
2881                                     intel_sdvo->caps.output_flags) != true) {
2882                 DRM_DEBUG_KMS("SDVO output failed to setup on %s\n",
2883                               SDVO_NAME(intel_sdvo));
2884                 /* Output_setup can leave behind connectors! */
2885                 goto err_output;
2886         }
2887
2888         /*
2889          * Cloning SDVO with anything is often impossible, since the SDVO
2890          * encoder can request a special input timing mode. And even if that's
2891          * not the case we have evidence that cloning a plain unscaled mode with
2892          * VGA doesn't really work. Furthermore the cloning flags are way too
2893          * simplistic anyway to express such constraints, so just give up on
2894          * cloning for SDVO encoders.
2895          */
2896         intel_sdvo->base.cloneable = false;
2897
2898         intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo, sdvo_reg);
2899
2900         /* Set the input timing to the screen. Assume always input 0. */
2901         if (!intel_sdvo_set_target_input(intel_sdvo))
2902                 goto err_output;
2903
2904         if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
2905                                                     &intel_sdvo->pixel_clock_min,
2906                                                     &intel_sdvo->pixel_clock_max))
2907                 goto err_output;
2908
2909         DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
2910                         "clock range %dMHz - %dMHz, "
2911                         "input 1: %c, input 2: %c, "
2912                         "output 1: %c, output 2: %c\n",
2913                         SDVO_NAME(intel_sdvo),
2914                         intel_sdvo->caps.vendor_id, intel_sdvo->caps.device_id,
2915                         intel_sdvo->caps.device_rev_id,
2916                         intel_sdvo->pixel_clock_min / 1000,
2917                         intel_sdvo->pixel_clock_max / 1000,
2918                         (intel_sdvo->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
2919                         (intel_sdvo->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
2920                         /* check currently supported outputs */
2921                         intel_sdvo->caps.output_flags &
2922                         (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
2923                         intel_sdvo->caps.output_flags &
2924                         (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
2925         return true;
2926
2927 err_output:
2928         intel_sdvo_output_cleanup(intel_sdvo);
2929
2930 err:
2931         drm_encoder_cleanup(&intel_encoder->base);
2932         i2c_del_adapter(&intel_sdvo->ddc);
2933 err_i2c_bus:
2934         intel_sdvo_unselect_i2c_bus(intel_sdvo);
2935         kfree(intel_sdvo);
2936
2937         return false;
2938 }