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_atomic_helper.h>
  34 #include <drm/drm_crtc.h>
  35 #include <drm/drm_edid.h>
  36 #include "intel_drv.h"
  37 #include <drm/i915_drm.h>
  38 #include "i915_drv.h"
  39 #include "intel_sdvo_regs.h"
  40
  41 #define SDVO_TMDS_MASK (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)
  42 #define SDVO_RGB_MASK  (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1)
  43 #define SDVO_LVDS_MASK (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1)
  44 #define SDVO_TV_MASK   (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_YPRPB0)
  45
  46 #define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK |\
  47                         SDVO_TV_MASK)
  48
  49 #define IS_TV(c)        (c->output_flag & SDVO_TV_MASK)
  50 #define IS_TMDS(c)      (c->output_flag & SDVO_TMDS_MASK)
  51 #define IS_LVDS(c)      (c->output_flag & SDVO_LVDS_MASK)
  52 #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
  53 #define IS_DIGITAL(c) (c->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK))
  54
  55
  56 static const char * const tv_format_names[] = {
  57         "NTSC_M"   , "NTSC_J"  , "NTSC_443",
  58         "PAL_B"    , "PAL_D"   , "PAL_G"   ,
  59         "PAL_H"    , "PAL_I"   , "PAL_M"   ,
  60         "PAL_N"    , "PAL_NC"  , "PAL_60"  ,
  61         "SECAM_B"  , "SECAM_D" , "SECAM_G" ,
  62         "SECAM_K"  , "SECAM_K1", "SECAM_L" ,
  63         "SECAM_60"
  64 };
  65
  66 #define TV_FORMAT_NUM  ARRAY_SIZE(tv_format_names)
  67
  68 struct intel_sdvo {
  69         struct intel_encoder base;
  70
  71         struct i2c_adapter *i2c;
  72         u8 slave_addr;
  73
  74         struct i2c_adapter ddc;
  75
  76         /* Register for the SDVO device: SDVOB or SDVOC */
  77         i915_reg_t sdvo_reg;
  78
  79         /* Active outputs controlled by this SDVO output */
  80         uint16_t controlled_output;
  81
  82         /*
  83          * Capabilities of the SDVO device returned by
  84          * intel_sdvo_get_capabilities()
  85          */
  86         struct intel_sdvo_caps caps;
  87
  88         /* Pixel clock limitations reported by the SDVO device, in kHz */
  89         int pixel_clock_min, pixel_clock_max;
  90
  91         /*
  92         * For multiple function SDVO device,
  93         * this is for current attached outputs.
  94         */
  95         uint16_t attached_output;
  96
  97         /*
  98          * Hotplug activation bits for this device
  99          */
 100         uint16_t hotplug_active;
 101
 102         /**
 103          * This is used to select the color range of RBG outputs in HDMI mode.
 104          * It is only valid when using TMDS encoding and 8 bit per color mode.
 105          */
 106         uint32_t color_range;
 107         bool color_range_auto;
 108
 109         /**
 110          * HDMI user specified aspect ratio
 111          */
 112         enum hdmi_picture_aspect aspect_ratio;
 113
 114         /**
 115          * This is set if we're going to treat the device as TV-out.
 116          *
 117          * While we have these nice friendly flags for output types that ought
 118          * to decide this for us, the S-Video output on our HDMI+S-Video card
 119          * shows up as RGB1 (VGA).
 120          */
 121         bool is_tv;
 122
 123         enum port port;
 124
 125         /* This is for current tv format name */
 126         int tv_format_index;
 127
 128         /**
 129          * This is set if we treat the device as HDMI, instead of DVI.
 130          */
 131         bool is_hdmi;
 132         bool has_hdmi_monitor;
 133         bool has_hdmi_audio;
 134         bool rgb_quant_range_selectable;
 135
 136         /**
 137          * This is set if we detect output of sdvo device as LVDS and
 138          * have a valid fixed mode to use with the panel.
 139          */
 140         bool is_lvds;
 141
 142         /**
 143          * This is sdvo fixed pannel mode pointer
 144          */
 145         struct drm_display_mode *sdvo_lvds_fixed_mode;
 146
 147         /* DDC bus used by this SDVO encoder */
 148         uint8_t ddc_bus;
 149
 150         /*
 151          * the sdvo flag gets lost in round trip: dtd->adjusted_mode->dtd
 152          */
 153         uint8_t dtd_sdvo_flags;
 154 };
 155
 156 struct intel_sdvo_connector {
 157         struct intel_connector base;
 158
 159         /* Mark the type of connector */
 160         uint16_t output_flag;
 161
 162         enum hdmi_force_audio force_audio;
 163
 164         /* This contains all current supported TV format */
 165         u8 tv_format_supported[TV_FORMAT_NUM];
 166         int   format_supported_num;
 167         struct drm_property *tv_format;
 168
 169         /* add the property for the SDVO-TV */
 170         struct drm_property *left;
 171         struct drm_property *right;
 172         struct drm_property *top;
 173         struct drm_property *bottom;
 174         struct drm_property *hpos;
 175         struct drm_property *vpos;
 176         struct drm_property *contrast;
 177         struct drm_property *saturation;
 178         struct drm_property *hue;
 179         struct drm_property *sharpness;
 180         struct drm_property *flicker_filter;
 181         struct drm_property *flicker_filter_adaptive;
 182         struct drm_property *flicker_filter_2d;
 183         struct drm_property *tv_chroma_filter;
 184         struct drm_property *tv_luma_filter;
 185         struct drm_property *dot_crawl;
 186
 187         /* add the property for the SDVO-TV/LVDS */
 188         struct drm_property *brightness;
 189
 190         /* Add variable to record current setting for the above property */
 191         u32     left_margin, right_margin, top_margin, bottom_margin;
 192
 193         /* this is to get the range of margin.*/
 194         u32     max_hscan,  max_vscan;
 195         u32     max_hpos, cur_hpos;
 196         u32     max_vpos, cur_vpos;
 197         u32     cur_brightness, max_brightness;
 198         u32     cur_contrast,   max_contrast;
 199         u32     cur_saturation, max_saturation;
 200         u32     cur_hue,        max_hue;
 201         u32     cur_sharpness,  max_sharpness;
 202         u32     cur_flicker_filter,             max_flicker_filter;
 203         u32     cur_flicker_filter_adaptive,    max_flicker_filter_adaptive;
 204         u32     cur_flicker_filter_2d,          max_flicker_filter_2d;
 205         u32     cur_tv_chroma_filter,   max_tv_chroma_filter;
 206         u32     cur_tv_luma_filter,     max_tv_luma_filter;
 207         u32     cur_dot_crawl,  max_dot_crawl;
 208 };
 209
 210 static struct intel_sdvo *to_sdvo(struct intel_encoder *encoder)
 211 {
 212         return container_of(encoder, struct intel_sdvo, base);
 213 }
 214
 215 static struct intel_sdvo *intel_attached_sdvo(struct drm_connector *connector)
 216 {
 217         return to_sdvo(intel_attached_encoder(connector));
 218 }
 219
 220 static struct intel_sdvo_connector *to_intel_sdvo_connector(struct drm_connector *connector)
 221 {
 222         return container_of(to_intel_connector(connector), struct intel_sdvo_connector, base);
 223 }
 224
 225 static bool
 226 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags);
 227 static bool
 228 intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
 229                               struct intel_sdvo_connector *intel_sdvo_connector,
 230                               int type);
 231 static bool
 232 intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
 233                                    struct intel_sdvo_connector *intel_sdvo_connector);
 234
 235 /**
 236  * Writes the SDVOB or SDVOC with the given value, but always writes both
 237  * SDVOB and SDVOC to work around apparent hardware issues (according to
 238  * comments in the BIOS).
 239  */
 240 static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val)
 241 {
 242         struct drm_device *dev = intel_sdvo->base.base.dev;
 243         struct drm_i915_private *dev_priv = dev->dev_private;
 244         u32 bval = val, cval = val;
 245         int i;
 246
 247         if (HAS_PCH_SPLIT(dev_priv)) {
 248                 I915_WRITE(intel_sdvo->sdvo_reg, val);
 249                 POSTING_READ(intel_sdvo->sdvo_reg);
 250                 /*
 251                  * HW workaround, need to write this twice for issue
 252                  * that may result in first write getting masked.
 253                  */
 254                 if (HAS_PCH_IBX(dev)) {
 255                         I915_WRITE(intel_sdvo->sdvo_reg, val);
 256                         POSTING_READ(intel_sdvo->sdvo_reg);
 257                 }
 258                 return;
 259         }
 260
 261         if (intel_sdvo->port == PORT_B)
 262                 cval = I915_READ(GEN3_SDVOC);
 263         else
 264                 bval = I915_READ(GEN3_SDVOB);
 265
 266         /*
 267          * Write the registers twice for luck. Sometimes,
 268          * writing them only once doesn't appear to 'stick'.
 269          * The BIOS does this too. Yay, magic
 270          */
 271         for (i = 0; i < 2; i++)
 272         {
 273                 I915_WRITE(GEN3_SDVOB, bval);
 274                 POSTING_READ(GEN3_SDVOB);
 275                 I915_WRITE(GEN3_SDVOC, cval);
 276                 POSTING_READ(GEN3_SDVOC);
 277         }
 278 }
 279
 280 static bool intel_sdvo_read_byte(struct intel_sdvo *intel_sdvo, u8 addr, u8 *ch)
 281 {
 282         struct i2c_msg msgs[] = {
 283                 {
 284                         .addr = intel_sdvo->slave_addr,
 285                         .flags = 0,
 286                         .len = 1,
 287                         .buf = &addr,
 288                 },
 289                 {
 290                         .addr = intel_sdvo->slave_addr,
 291                         .flags = I2C_M_RD,
 292                         .len = 1,
 293                         .buf = ch,
 294                 }
 295         };
 296         int ret;
 297
 298         if ((ret = i2c_transfer(intel_sdvo->i2c, msgs, 2)) == 2)
 299                 return true;
 300
 301         DRM_DEBUG_KMS("i2c transfer returned %d\n", ret);
 302         return false;
 303 }
 304
 305 #define SDVO_CMD_NAME_ENTRY(cmd) {cmd, #cmd}
 306 /** Mapping of command numbers to names, for debug output */
 307 static const struct _sdvo_cmd_name {
 308         u8 cmd;
 309         const char *name;
 310 } sdvo_cmd_names[] = {
 311         SDVO_CMD_NAME_ENTRY(SDVO_CMD_RESET),
 312         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DEVICE_CAPS),
 313         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FIRMWARE_REV),
 314         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TRAINED_INPUTS),
 315         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_OUTPUTS),
 316         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_OUTPUTS),
 317         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_IN_OUT_MAP),
 318         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_IN_OUT_MAP),
 319         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ATTACHED_DISPLAYS),
 320         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HOT_PLUG_SUPPORT),
 321         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_HOT_PLUG),
 322         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_HOT_PLUG),
 323         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INTERRUPT_EVENT_SOURCE),
 324         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_INPUT),
 325         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_OUTPUT),
 326         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART1),
 327         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART2),
 328         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 329         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART2),
 330         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 331         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART1),
 332         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART2),
 333         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART1),
 334         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART2),
 335         SDVO_CMD_NAME_ENTRY(SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING),
 336         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1),
 337         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2),
 338         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE),
 339         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_PIXEL_CLOCK_RANGE),
 340         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_CLOCK_RATE_MULTS),
 341         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CLOCK_RATE_MULT),
 342         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CLOCK_RATE_MULT),
 343         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_TV_FORMATS),
 344         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_FORMAT),
 345         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_FORMAT),
 346         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_POWER_STATES),
 347         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_POWER_STATE),
 348         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODER_POWER_STATE),
 349         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DISPLAY_POWER_STATE),
 350         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTROL_BUS_SWITCH),
 351         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT),
 352         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SCALED_HDTV_RESOLUTION_SUPPORT),
 353         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS),
 354
 355         /* Add the op code for SDVO enhancements */
 356         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HPOS),
 357         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HPOS),
 358         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HPOS),
 359         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_VPOS),
 360         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_VPOS),
 361         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_VPOS),
 362         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SATURATION),
 363         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SATURATION),
 364         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SATURATION),
 365         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HUE),
 366         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HUE),
 367         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HUE),
 368         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_CONTRAST),
 369         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CONTRAST),
 370         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTRAST),
 371         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_BRIGHTNESS),
 372         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_BRIGHTNESS),
 373         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_BRIGHTNESS),
 374         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_H),
 375         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_H),
 376         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_H),
 377         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_V),
 378         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_V),
 379         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_V),
 380         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER),
 381         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER),
 382         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER),
 383         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_ADAPTIVE),
 384         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_ADAPTIVE),
 385         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_ADAPTIVE),
 386         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_2D),
 387         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_2D),
 388         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_2D),
 389         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SHARPNESS),
 390         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SHARPNESS),
 391         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SHARPNESS),
 392         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DOT_CRAWL),
 393         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DOT_CRAWL),
 394         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_CHROMA_FILTER),
 395         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_CHROMA_FILTER),
 396         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_CHROMA_FILTER),
 397         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_LUMA_FILTER),
 398         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_LUMA_FILTER),
 399         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_LUMA_FILTER),
 400
 401         /* HDMI op code */
 402         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPP_ENCODE),
 403         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ENCODE),
 404         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODE),
 405         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_PIXEL_REPLI),
 406         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PIXEL_REPLI),
 407         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY_CAP),
 408         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_COLORIMETRY),
 409         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY),
 410         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_ENCRYPT_PREFER),
 411         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_AUDIO_STAT),
 412         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_STAT),
 413         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INDEX),
 414         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_INDEX),
 415         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INFO),
 416         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_AV_SPLIT),
 417         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_AV_SPLIT),
 418         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_TXRATE),
 419         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_TXRATE),
 420         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_DATA),
 421         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_DATA),
 422 };
 423
 424 #define SDVO_NAME(svdo) ((svdo)->port == PORT_B ? "SDVOB" : "SDVOC")
 425
 426 static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd,
 427                                    const void *args, int args_len)
 428 {
 429         int i, pos = 0;
 430 #define BUF_LEN 256
 431         char buffer[BUF_LEN];
 432
 433 #define BUF_PRINT(args...) \
 434         pos += snprintf(buffer + pos, max_t(int, BUF_LEN - pos, 0), args)
 435
 436
 437         for (i = 0; i < args_len; i++) {
 438                 BUF_PRINT("%02X ", ((u8 *)args)[i]);
 439         }
 440         for (; i < 8; i++) {
 441                 BUF_PRINT("   ");
 442         }
 443         for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) {
 444                 if (cmd == sdvo_cmd_names[i].cmd) {
 445                         BUF_PRINT("(%s)", sdvo_cmd_names[i].name);
 446                         break;
 447                 }
 448         }
 449         if (i == ARRAY_SIZE(sdvo_cmd_names)) {
 450                 BUF_PRINT("(%02X)", cmd);
 451         }
 452         BUG_ON(pos >= BUF_LEN - 1);
 453 #undef BUF_PRINT
 454 #undef BUF_LEN
 455
 456         DRM_DEBUG_KMS("%s: W: %02X %s\n", SDVO_NAME(intel_sdvo), cmd, buffer);
 457 }
 458
 459 static const char * const cmd_status_names[] = {
 460         "Power on",
 461         "Success",
 462         "Not supported",
 463         "Invalid arg",
 464         "Pending",
 465         "Target not specified",
 466         "Scaling not supported"
 467 };
 468
 469 static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
 470                                  const void *args, int args_len)
 471 {
 472         u8 *buf, status;
 473         struct i2c_msg *msgs;
 474         int i, ret = true;
 475
 476         /* Would be simpler to allocate both in one go ? */
 477         buf = kzalloc(args_len * 2 + 2, GFP_KERNEL);
 478         if (!buf)
 479                 return false;
 480
 481         msgs = kcalloc(args_len + 3, sizeof(*msgs), GFP_KERNEL);
 482         if (!msgs) {
 483                 kfree(buf);
 484                 return false;
 485         }
 486
 487         intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
 488
 489         for (i = 0; i < args_len; i++) {
 490                 msgs[i].addr = intel_sdvo->slave_addr;
 491                 msgs[i].flags = 0;
 492                 msgs[i].len = 2;
 493                 msgs[i].buf = buf + 2 *i;
 494                 buf[2*i + 0] = SDVO_I2C_ARG_0 - i;
 495                 buf[2*i + 1] = ((u8*)args)[i];
 496         }
 497         msgs[i].addr = intel_sdvo->slave_addr;
 498         msgs[i].flags = 0;
 499         msgs[i].len = 2;
 500         msgs[i].buf = buf + 2*i;
 501         buf[2*i + 0] = SDVO_I2C_OPCODE;
 502         buf[2*i + 1] = cmd;
 503
 504         /* the following two are to read the response */
 505         status = SDVO_I2C_CMD_STATUS;
 506         msgs[i+1].addr = intel_sdvo->slave_addr;
 507         msgs[i+1].flags = 0;
 508         msgs[i+1].len = 1;
 509         msgs[i+1].buf = &status;
 510
 511         msgs[i+2].addr = intel_sdvo->slave_addr;
 512         msgs[i+2].flags = I2C_M_RD;
 513         msgs[i+2].len = 1;
 514         msgs[i+2].buf = &status;
 515
 516         ret = i2c_transfer(intel_sdvo->i2c, msgs, i+3);
 517         if (ret < 0) {
 518                 DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
 519                 ret = false;
 520                 goto out;
 521         }
 522         if (ret != i+3) {
 523                 /* failure in I2C transfer */
 524                 DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3);
 525                 ret = false;
 526         }
 527
 528 out:
 529         kfree(msgs);
 530         kfree(buf);
 531         return ret;
 532 }
 533
 534 static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
 535                                      void *response, int response_len)
 536 {
 537         u8 retry = 15; /* 5 quick checks, followed by 10 long checks */
 538         u8 status;
 539         int i, pos = 0;
 540 #define BUF_LEN 256
 541         char buffer[BUF_LEN];
 542
 543
 544         /*
 545          * The documentation states that all commands will be
 546          * processed within 15µs, and that we need only poll
 547          * the status byte a maximum of 3 times in order for the
 548          * command to be complete.
 549          *
 550          * Check 5 times in case the hardware failed to read the docs.
 551          *
 552          * Also beware that the first response by many devices is to
 553          * reply PENDING and stall for time. TVs are notorious for
 554          * requiring longer than specified to complete their replies.
 555          * Originally (in the DDX long ago), the delay was only ever 15ms
 556          * with an additional delay of 30ms applied for TVs added later after
 557          * many experiments. To accommodate both sets of delays, we do a
 558          * sequence of slow checks if the device is falling behind and fails
 559          * to reply within 5*15µs.
 560          */
 561         if (!intel_sdvo_read_byte(intel_sdvo,
 562                                   SDVO_I2C_CMD_STATUS,
 563                                   &status))
 564                 goto log_fail;
 565
 566         while ((status == SDVO_CMD_STATUS_PENDING ||
 567                 status == SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED) && --retry) {
 568                 if (retry < 10)
 569                         msleep(15);
 570                 else
 571                         udelay(15);
 572
 573                 if (!intel_sdvo_read_byte(intel_sdvo,
 574                                           SDVO_I2C_CMD_STATUS,
 575                                           &status))
 576                         goto log_fail;
 577         }
 578
 579 #define BUF_PRINT(args...) \
 580         pos += snprintf(buffer + pos, max_t(int, BUF_LEN - pos, 0), args)
 581
 582         if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
 583                 BUF_PRINT("(%s)", cmd_status_names[status]);
 584         else
 585                 BUF_PRINT("(??? %d)", status);
 586
 587         if (status != SDVO_CMD_STATUS_SUCCESS)
 588                 goto log_fail;
 589
 590         /* Read the command response */
 591         for (i = 0; i < response_len; i++) {
 592                 if (!intel_sdvo_read_byte(intel_sdvo,
 593                                           SDVO_I2C_RETURN_0 + i,
 594                                           &((u8 *)response)[i]))
 595                         goto log_fail;
 596                 BUF_PRINT(" %02X", ((u8 *)response)[i]);
 597         }
 598         BUG_ON(pos >= BUF_LEN - 1);
 599 #undef BUF_PRINT
 600 #undef BUF_LEN
 601
 602         DRM_DEBUG_KMS("%s: R: %s\n", SDVO_NAME(intel_sdvo), buffer);
 603         return true;
 604
 605 log_fail:
 606         DRM_DEBUG_KMS("%s: R: ... failed\n", SDVO_NAME(intel_sdvo));
 607         return false;
 608 }
 609
 610 static int intel_sdvo_get_pixel_multiplier(const struct drm_display_mode *adjusted_mode)
 611 {
 612         if (adjusted_mode->crtc_clock >= 100000)
 613                 return 1;
 614         else if (adjusted_mode->crtc_clock >= 50000)
 615                 return 2;
 616         else
 617                 return 4;
 618 }
 619
 620 static bool intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo,
 621                                               u8 ddc_bus)
 622 {
 623         /* This must be the immediately preceding write before the i2c xfer */
 624         return intel_sdvo_write_cmd(intel_sdvo,
 625                                     SDVO_CMD_SET_CONTROL_BUS_SWITCH,
 626                                     &ddc_bus, 1);
 627 }
 628
 629 static bool intel_sdvo_set_value(struct intel_sdvo *intel_sdvo, u8 cmd, const void *data, int len)
 630 {
 631         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, data, len))
 632                 return false;
 633
 634         return intel_sdvo_read_response(intel_sdvo, NULL, 0);
 635 }
 636
 637 static bool
 638 intel_sdvo_get_value(struct intel_sdvo *intel_sdvo, u8 cmd, void *value, int len)
 639 {
 640         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, NULL, 0))
 641                 return false;
 642
 643         return intel_sdvo_read_response(intel_sdvo, value, len);
 644 }
 645
 646 static bool intel_sdvo_set_target_input(struct intel_sdvo *intel_sdvo)
 647 {
 648         struct intel_sdvo_set_target_input_args targets = {0};
 649         return intel_sdvo_set_value(intel_sdvo,
 650                                     SDVO_CMD_SET_TARGET_INPUT,
 651                                     &targets, sizeof(targets));
 652 }
 653
 654 /**
 655  * Return whether each input is trained.
 656  *
 657  * This function is making an assumption about the layout of the response,
 658  * which should be checked against the docs.
 659  */
 660 static bool intel_sdvo_get_trained_inputs(struct intel_sdvo *intel_sdvo, bool *input_1, bool *input_2)
 661 {
 662         struct intel_sdvo_get_trained_inputs_response response;
 663
 664         BUILD_BUG_ON(sizeof(response) != 1);
 665         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_TRAINED_INPUTS,
 666                                   &response, sizeof(response)))
 667                 return false;
 668
 669         *input_1 = response.input0_trained;
 670         *input_2 = response.input1_trained;
 671         return true;
 672 }
 673
 674 static bool intel_sdvo_set_active_outputs(struct intel_sdvo *intel_sdvo,
 675                                           u16 outputs)
 676 {
 677         return intel_sdvo_set_value(intel_sdvo,
 678                                     SDVO_CMD_SET_ACTIVE_OUTPUTS,
 679                                     &outputs, sizeof(outputs));
 680 }
 681
 682 static bool intel_sdvo_get_active_outputs(struct intel_sdvo *intel_sdvo,
 683                                           u16 *outputs)
 684 {
 685         return intel_sdvo_get_value(intel_sdvo,
 686                                     SDVO_CMD_GET_ACTIVE_OUTPUTS,
 687                                     outputs, sizeof(*outputs));
 688 }
 689
 690 static bool intel_sdvo_set_encoder_power_state(struct intel_sdvo *intel_sdvo,
 691                                                int mode)
 692 {
 693         u8 state = SDVO_ENCODER_STATE_ON;
 694
 695         switch (mode) {
 696         case DRM_MODE_DPMS_ON:
 697                 state = SDVO_ENCODER_STATE_ON;
 698                 break;
 699         case DRM_MODE_DPMS_STANDBY:
 700                 state = SDVO_ENCODER_STATE_STANDBY;
 701                 break;
 702         case DRM_MODE_DPMS_SUSPEND:
 703                 state = SDVO_ENCODER_STATE_SUSPEND;
 704                 break;
 705         case DRM_MODE_DPMS_OFF:
 706                 state = SDVO_ENCODER_STATE_OFF;
 707                 break;
 708         }
 709
 710         return intel_sdvo_set_value(intel_sdvo,
 711                                     SDVO_CMD_SET_ENCODER_POWER_STATE, &state, sizeof(state));
 712 }
 713
 714 static bool intel_sdvo_get_input_pixel_clock_range(struct intel_sdvo *intel_sdvo,
 715                                                    int *clock_min,
 716                                                    int *clock_max)
 717 {
 718         struct intel_sdvo_pixel_clock_range clocks;
 719
 720         BUILD_BUG_ON(sizeof(clocks) != 4);
 721         if (!intel_sdvo_get_value(intel_sdvo,
 722                                   SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
 723                                   &clocks, sizeof(clocks)))
 724                 return false;
 725
 726         /* Convert the values from units of 10 kHz to kHz. */
 727         *clock_min = clocks.min * 10;
 728         *clock_max = clocks.max * 10;
 729         return true;
 730 }
 731
 732 static bool intel_sdvo_set_target_output(struct intel_sdvo *intel_sdvo,
 733                                          u16 outputs)
 734 {
 735         return intel_sdvo_set_value(intel_sdvo,
 736                                     SDVO_CMD_SET_TARGET_OUTPUT,
 737                                     &outputs, sizeof(outputs));
 738 }
 739
 740 static bool intel_sdvo_set_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 741                                   struct intel_sdvo_dtd *dtd)
 742 {
 743         return intel_sdvo_set_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 744                 intel_sdvo_set_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 745 }
 746
 747 static bool intel_sdvo_get_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 748                                   struct intel_sdvo_dtd *dtd)
 749 {
 750         return intel_sdvo_get_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 751                 intel_sdvo_get_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 752 }
 753
 754 static bool intel_sdvo_set_input_timing(struct intel_sdvo *intel_sdvo,
 755                                          struct intel_sdvo_dtd *dtd)
 756 {
 757         return intel_sdvo_set_timing(intel_sdvo,
 758                                      SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd);
 759 }
 760
 761 static bool intel_sdvo_set_output_timing(struct intel_sdvo *intel_sdvo,
 762                                          struct intel_sdvo_dtd *dtd)
 763 {
 764         return intel_sdvo_set_timing(intel_sdvo,
 765                                      SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd);
 766 }
 767
 768 static bool intel_sdvo_get_input_timing(struct intel_sdvo *intel_sdvo,
 769                                         struct intel_sdvo_dtd *dtd)
 770 {
 771         return intel_sdvo_get_timing(intel_sdvo,
 772                                      SDVO_CMD_GET_INPUT_TIMINGS_PART1, dtd);
 773 }
 774
 775 static bool
 776 intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 777                                          uint16_t clock,
 778                                          uint16_t width,
 779                                          uint16_t height)
 780 {
 781         struct intel_sdvo_preferred_input_timing_args args;
 782
 783         memset(&args, 0, sizeof(args));
 784         args.clock = clock;
 785         args.width = width;
 786         args.height = height;
 787         args.interlace = 0;
 788
 789         if (intel_sdvo->is_lvds &&
 790            (intel_sdvo->sdvo_lvds_fixed_mode->hdisplay != width ||
 791             intel_sdvo->sdvo_lvds_fixed_mode->vdisplay != height))
 792                 args.scaled = 1;
 793
 794         return intel_sdvo_set_value(intel_sdvo,
 795                                     SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
 796                                     &args, sizeof(args));
 797 }
 798
 799 static bool intel_sdvo_get_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 800                                                   struct intel_sdvo_dtd *dtd)
 801 {
 802         BUILD_BUG_ON(sizeof(dtd->part1) != 8);
 803         BUILD_BUG_ON(sizeof(dtd->part2) != 8);
 804         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
 805                                     &dtd->part1, sizeof(dtd->part1)) &&
 806                 intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
 807                                      &dtd->part2, sizeof(dtd->part2));
 808 }
 809
 810 static bool intel_sdvo_set_clock_rate_mult(struct intel_sdvo *intel_sdvo, u8 val)
 811 {
 812         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
 813 }
 814
 815 static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
 816                                          const struct drm_display_mode *mode)
 817 {
 818         uint16_t width, height;
 819         uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len;
 820         uint16_t h_sync_offset, v_sync_offset;
 821         int mode_clock;
 822
 823         memset(dtd, 0, sizeof(*dtd));
 824
 825         width = mode->hdisplay;
 826         height = mode->vdisplay;
 827
 828         /* do some mode translations */
 829         h_blank_len = mode->htotal - mode->hdisplay;
 830         h_sync_len = mode->hsync_end - mode->hsync_start;
 831
 832         v_blank_len = mode->vtotal - mode->vdisplay;
 833         v_sync_len = mode->vsync_end - mode->vsync_start;
 834
 835         h_sync_offset = mode->hsync_start - mode->hdisplay;
 836         v_sync_offset = mode->vsync_start - mode->vdisplay;
 837
 838         mode_clock = mode->clock;
 839         mode_clock /= 10;
 840         dtd->part1.clock = mode_clock;
 841
 842         dtd->part1.h_active = width & 0xff;
 843         dtd->part1.h_blank = h_blank_len & 0xff;
 844         dtd->part1.h_high = (((width >> 8) & 0xf) << 4) |
 845                 ((h_blank_len >> 8) & 0xf);
 846         dtd->part1.v_active = height & 0xff;
 847         dtd->part1.v_blank = v_blank_len & 0xff;
 848         dtd->part1.v_high = (((height >> 8) & 0xf) << 4) |
 849                 ((v_blank_len >> 8) & 0xf);
 850
 851         dtd->part2.h_sync_off = h_sync_offset & 0xff;
 852         dtd->part2.h_sync_width = h_sync_len & 0xff;
 853         dtd->part2.v_sync_off_width = (v_sync_offset & 0xf) << 4 |
 854                 (v_sync_len & 0xf);
 855         dtd->part2.sync_off_width_high = ((h_sync_offset & 0x300) >> 2) |
 856                 ((h_sync_len & 0x300) >> 4) | ((v_sync_offset & 0x30) >> 2) |
 857                 ((v_sync_len & 0x30) >> 4);
 858
 859         dtd->part2.dtd_flags = 0x18;
 860         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 861                 dtd->part2.dtd_flags |= DTD_FLAG_INTERLACE;
 862         if (mode->flags & DRM_MODE_FLAG_PHSYNC)
 863                 dtd->part2.dtd_flags |= DTD_FLAG_HSYNC_POSITIVE;
 864         if (mode->flags & DRM_MODE_FLAG_PVSYNC)
 865                 dtd->part2.dtd_flags |= DTD_FLAG_VSYNC_POSITIVE;
 866
 867         dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
 868 }
 869
 870 static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode *pmode,
 871                                          const struct intel_sdvo_dtd *dtd)
 872 {
 873         struct drm_display_mode mode = {};
 874
 875         mode.hdisplay = dtd->part1.h_active;
 876         mode.hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
 877         mode.hsync_start = mode.hdisplay + dtd->part2.h_sync_off;
 878         mode.hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
 879         mode.hsync_end = mode.hsync_start + dtd->part2.h_sync_width;
 880         mode.hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
 881         mode.htotal = mode.hdisplay + dtd->part1.h_blank;
 882         mode.htotal += (dtd->part1.h_high & 0xf) << 8;
 883
 884         mode.vdisplay = dtd->part1.v_active;
 885         mode.vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
 886         mode.vsync_start = mode.vdisplay;
 887         mode.vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
 888         mode.vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
 889         mode.vsync_start += dtd->part2.v_sync_off_high & 0xc0;
 890         mode.vsync_end = mode.vsync_start +
 891                 (dtd->part2.v_sync_off_width & 0xf);
 892         mode.vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
 893         mode.vtotal = mode.vdisplay + dtd->part1.v_blank;
 894         mode.vtotal += (dtd->part1.v_high & 0xf) << 8;
 895
 896         mode.clock = dtd->part1.clock * 10;
 897
 898         if (dtd->part2.dtd_flags & DTD_FLAG_INTERLACE)
 899                 mode.flags |= DRM_MODE_FLAG_INTERLACE;
 900         if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
 901                 mode.flags |= DRM_MODE_FLAG_PHSYNC;
 902         else
 903                 mode.flags |= DRM_MODE_FLAG_NHSYNC;
 904         if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
 905                 mode.flags |= DRM_MODE_FLAG_PVSYNC;
 906         else
 907                 mode.flags |= DRM_MODE_FLAG_NVSYNC;
 908
 909         drm_mode_set_crtcinfo(&mode, 0);
 910
 911         drm_mode_copy(pmode, &mode);
 912 }
 913
 914 static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo)
 915 {
 916         struct intel_sdvo_encode encode;
 917
 918         BUILD_BUG_ON(sizeof(encode) != 2);
 919         return intel_sdvo_get_value(intel_sdvo,
 920                                   SDVO_CMD_GET_SUPP_ENCODE,
 921                                   &encode, sizeof(encode));
 922 }
 923
 924 static bool intel_sdvo_set_encode(struct intel_sdvo *intel_sdvo,
 925                                   uint8_t mode)
 926 {
 927         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_ENCODE, &mode, 1);
 928 }
 929
 930 static bool intel_sdvo_set_colorimetry(struct intel_sdvo *intel_sdvo,
 931                                        uint8_t mode)
 932 {
 933         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
 934 }
 935
 936 #if 0
 937 static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
 938 {
 939         int i, j;
 940         uint8_t set_buf_index[2];
 941         uint8_t av_split;
 942         uint8_t buf_size;
 943         uint8_t buf[48];
 944         uint8_t *pos;
 945
 946         intel_sdvo_get_value(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, &av_split, 1);
 947
 948         for (i = 0; i <= av_split; i++) {
 949                 set_buf_index[0] = i; set_buf_index[1] = 0;
 950                 intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX,
 951                                      set_buf_index, 2);
 952                 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
 953                 intel_sdvo_read_response(encoder, &buf_size, 1);
 954
 955                 pos = buf;
 956                 for (j = 0; j <= buf_size; j += 8) {
 957                         intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA,
 958                                              NULL, 0);
 959                         intel_sdvo_read_response(encoder, pos, 8);
 960                         pos += 8;
 961                 }
 962         }
 963 }
 964 #endif
 965
 966 static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo,
 967                                        unsigned if_index, uint8_t tx_rate,
 968                                        const uint8_t *data, unsigned length)
 969 {
 970         uint8_t set_buf_index[2] = { if_index, 0 };
 971         uint8_t hbuf_size, tmp[8];
 972         int i;
 973
 974         if (!intel_sdvo_set_value(intel_sdvo,
 975                                   SDVO_CMD_SET_HBUF_INDEX,
 976                                   set_buf_index, 2))
 977                 return false;
 978
 979         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HBUF_INFO,
 980                                   &hbuf_size, 1))
 981                 return false;
 982
 983         /* Buffer size is 0 based, hooray! */
 984         hbuf_size++;
 985
 986         DRM_DEBUG_KMS("writing sdvo hbuf: %i, hbuf_size %i, hbuf_size: %i\n",
 987                       if_index, length, hbuf_size);
 988
 989         for (i = 0; i < hbuf_size; i += 8) {
 990                 memset(tmp, 0, 8);
 991                 if (i < length)
 992                         memcpy(tmp, data + i, min_t(unsigned, 8, length - i));
 993
 994                 if (!intel_sdvo_set_value(intel_sdvo,
 995                                           SDVO_CMD_SET_HBUF_DATA,
 996                                           tmp, 8))
 997                         return false;
 998         }
 999
1000         return intel_sdvo_set_value(intel_sdvo,
1001                                     SDVO_CMD_SET_HBUF_TXRATE,
1002                                     &tx_rate, 1);
1003 }
1004
1005 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
1006                                          const struct drm_display_mode *adjusted_mode)
1007 {
1008         uint8_t sdvo_data[HDMI_INFOFRAME_SIZE(AVI)];
1009         struct drm_crtc *crtc = intel_sdvo->base.base.crtc;
1010         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
1011         union hdmi_infoframe frame;
1012         int ret;
1013         ssize_t len;
1014
1015         ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
1016                                                        adjusted_mode);
1017         if (ret < 0) {
1018                 DRM_ERROR("couldn't fill AVI infoframe\n");
1019                 return false;
1020         }
1021
1022         if (intel_sdvo->rgb_quant_range_selectable) {
1023                 if (intel_crtc->config->limited_color_range)
1024                         frame.avi.quantization_range =
1025                                 HDMI_QUANTIZATION_RANGE_LIMITED;
1026                 else
1027                         frame.avi.quantization_range =
1028                                 HDMI_QUANTIZATION_RANGE_FULL;
1029         }
1030
1031         len = hdmi_infoframe_pack(&frame, sdvo_data, sizeof(sdvo_data));
1032         if (len < 0)
1033                 return false;
1034
1035         return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF,
1036                                           SDVO_HBUF_TX_VSYNC,
1037                                           sdvo_data, sizeof(sdvo_data));
1038 }
1039
1040 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
1041 {
1042         struct intel_sdvo_tv_format format;
1043         uint32_t format_map;
1044
1045         format_map = 1 << intel_sdvo->tv_format_index;
1046         memset(&format, 0, sizeof(format));
1047         memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map)));
1048
1049         BUILD_BUG_ON(sizeof(format) != 6);
1050         return intel_sdvo_set_value(intel_sdvo,
1051                                     SDVO_CMD_SET_TV_FORMAT,
1052                                     &format, sizeof(format));
1053 }
1054
1055 static bool
1056 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
1057                                         const struct drm_display_mode *mode)
1058 {
1059         struct intel_sdvo_dtd output_dtd;
1060
1061         if (!intel_sdvo_set_target_output(intel_sdvo,
1062                                           intel_sdvo->attached_output))
1063                 return false;
1064
1065         intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1066         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1067                 return false;
1068
1069         return true;
1070 }
1071
1072 /* Asks the sdvo controller for the preferred input mode given the output mode.
1073  * Unfortunately we have to set up the full output mode to do that. */
1074 static bool
1075 intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
1076                                     const struct drm_display_mode *mode,
1077                                     struct drm_display_mode *adjusted_mode)
1078 {
1079         struct intel_sdvo_dtd input_dtd;
1080
1081         /* Reset the input timing to the screen. Assume always input 0. */
1082         if (!intel_sdvo_set_target_input(intel_sdvo))
1083                 return false;
1084
1085         if (!intel_sdvo_create_preferred_input_timing(intel_sdvo,
1086                                                       mode->clock / 10,
1087                                                       mode->hdisplay,
1088                                                       mode->vdisplay))
1089                 return false;
1090
1091         if (!intel_sdvo_get_preferred_input_timing(intel_sdvo,
1092                                                    &input_dtd))
1093                 return false;
1094
1095         intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd);
1096         intel_sdvo->dtd_sdvo_flags = input_dtd.part2.sdvo_flags;
1097
1098         return true;
1099 }
1100
1101 static void i9xx_adjust_sdvo_tv_clock(struct intel_crtc_state *pipe_config)
1102 {
1103         unsigned dotclock = pipe_config->port_clock;
1104         struct dpll *clock = &pipe_config->dpll;
1105
1106         /* SDVO TV has fixed PLL values depend on its clock range,
1107            this mirrors vbios setting. */
1108         if (dotclock >= 100000 && dotclock < 140500) {
1109                 clock->p1 = 2;
1110                 clock->p2 = 10;
1111                 clock->n = 3;
1112                 clock->m1 = 16;
1113                 clock->m2 = 8;
1114         } else if (dotclock >= 140500 && dotclock <= 200000) {
1115                 clock->p1 = 1;
1116                 clock->p2 = 10;
1117                 clock->n = 6;
1118                 clock->m1 = 12;
1119                 clock->m2 = 8;
1120         } else {
1121                 WARN(1, "SDVO TV clock out of range: %i\n", dotclock);
1122         }
1123
1124         pipe_config->clock_set = true;
1125 }
1126
1127 static bool intel_sdvo_compute_config(struct intel_encoder *encoder,
1128                                       struct intel_crtc_state *pipe_config)
1129 {
1130         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1131         struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
1132         struct drm_display_mode *mode = &pipe_config->base.mode;
1133
1134         DRM_DEBUG_KMS("forcing bpc to 8 for SDVO\n");
1135         pipe_config->pipe_bpp = 8*3;
1136
1137         if (HAS_PCH_SPLIT(encoder->base.dev))
1138                 pipe_config->has_pch_encoder = true;
1139
1140         /* We need to construct preferred input timings based on our
1141          * output timings.  To do that, we have to set the output
1142          * timings, even though this isn't really the right place in
1143          * the sequence to do it. Oh well.
1144          */
1145         if (intel_sdvo->is_tv) {
1146                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
1147                         return false;
1148
1149                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1150                                                            mode,
1151                                                            adjusted_mode);
1152                 pipe_config->sdvo_tv_clock = true;
1153         } else if (intel_sdvo->is_lvds) {
1154                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
1155                                                              intel_sdvo->sdvo_lvds_fixed_mode))
1156                         return false;
1157
1158                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1159                                                            mode,
1160                                                            adjusted_mode);
1161         }
1162
1163         /* Make the CRTC code factor in the SDVO pixel multiplier.  The
1164          * SDVO device will factor out the multiplier during mode_set.
1165          */
1166         pipe_config->pixel_multiplier =
1167                 intel_sdvo_get_pixel_multiplier(adjusted_mode);
1168
1169         pipe_config->has_hdmi_sink = intel_sdvo->has_hdmi_monitor;
1170
1171         if (intel_sdvo->color_range_auto) {
1172                 /* See CEA-861-E - 5.1 Default Encoding Parameters */
1173                 /* FIXME: This bit is only valid when using TMDS encoding and 8
1174                  * bit per color mode. */
1175                 if (pipe_config->has_hdmi_sink &&
1176                     drm_match_cea_mode(adjusted_mode) > 1)
1177                         pipe_config->limited_color_range = true;
1178         } else {
1179                 if (pipe_config->has_hdmi_sink &&
1180                     intel_sdvo->color_range == HDMI_COLOR_RANGE_16_235)
1181                         pipe_config->limited_color_range = true;
1182         }
1183
1184         /* Clock computation needs to happen after pixel multiplier. */
1185         if (intel_sdvo->is_tv)
1186                 i9xx_adjust_sdvo_tv_clock(pipe_config);
1187
1188         /* Set user selected PAR to incoming mode's member */
1189         if (intel_sdvo->is_hdmi)
1190                 adjusted_mode->picture_aspect_ratio = intel_sdvo->aspect_ratio;
1191
1192         return true;
1193 }
1194
1195 static void intel_sdvo_pre_enable(struct intel_encoder *intel_encoder)
1196 {
1197         struct drm_device *dev = intel_encoder->base.dev;
1198         struct drm_i915_private *dev_priv = dev->dev_private;
1199         struct intel_crtc *crtc = to_intel_crtc(intel_encoder->base.crtc);
1200         const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode;
1201         struct drm_display_mode *mode = &crtc->config->base.mode;
1202         struct intel_sdvo *intel_sdvo = to_sdvo(intel_encoder);
1203         u32 sdvox;
1204         struct intel_sdvo_in_out_map in_out;
1205         struct intel_sdvo_dtd input_dtd, output_dtd;
1206         int rate;
1207
1208         if (!mode)
1209                 return;
1210
1211         /* First, set the input mapping for the first input to our controlled
1212          * output. This is only correct if we're a single-input device, in
1213          * which case the first input is the output from the appropriate SDVO
1214          * channel on the motherboard.  In a two-input device, the first input
1215          * will be SDVOB and the second SDVOC.
1216          */
1217         in_out.in0 = intel_sdvo->attached_output;
1218         in_out.in1 = 0;
1219
1220         intel_sdvo_set_value(intel_sdvo,
1221                              SDVO_CMD_SET_IN_OUT_MAP,
1222                              &in_out, sizeof(in_out));
1223
1224         /* Set the output timings to the screen */
1225         if (!intel_sdvo_set_target_output(intel_sdvo,
1226                                           intel_sdvo->attached_output))
1227                 return;
1228
1229         /* lvds has a special fixed output timing. */
1230         if (intel_sdvo->is_lvds)
1231                 intel_sdvo_get_dtd_from_mode(&output_dtd,
1232                                              intel_sdvo->sdvo_lvds_fixed_mode);
1233         else
1234                 intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1235         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1236                 DRM_INFO("Setting output timings on %s failed\n",
1237                          SDVO_NAME(intel_sdvo));
1238
1239         /* Set the input timing to the screen. Assume always input 0. */
1240         if (!intel_sdvo_set_target_input(intel_sdvo))
1241                 return;
1242
1243         if (crtc->config->has_hdmi_sink) {
1244                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI);
1245                 intel_sdvo_set_colorimetry(intel_sdvo,
1246                                            SDVO_COLORIMETRY_RGB256);
1247                 intel_sdvo_set_avi_infoframe(intel_sdvo, adjusted_mode);
1248         } else
1249                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);
1250
1251         if (intel_sdvo->is_tv &&
1252             !intel_sdvo_set_tv_format(intel_sdvo))
1253                 return;
1254
1255         intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
1256
1257         if (intel_sdvo->is_tv || intel_sdvo->is_lvds)
1258                 input_dtd.part2.sdvo_flags = intel_sdvo->dtd_sdvo_flags;
1259         if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd))
1260                 DRM_INFO("Setting input timings on %s failed\n",
1261                          SDVO_NAME(intel_sdvo));
1262
1263         switch (crtc->config->pixel_multiplier) {
1264         default:
1265                 WARN(1, "unknown pixel multiplier specified\n");
1266         case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break;
1267         case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break;
1268         case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break;
1269         }
1270         if (!intel_sdvo_set_clock_rate_mult(intel_sdvo, rate))
1271                 return;
1272
1273         /* Set the SDVO control regs. */
1274         if (INTEL_INFO(dev)->gen >= 4) {
1275                 /* The real mode polarity is set by the SDVO commands, using
1276                  * struct intel_sdvo_dtd. */
1277                 sdvox = SDVO_VSYNC_ACTIVE_HIGH | SDVO_HSYNC_ACTIVE_HIGH;
1278                 if (!HAS_PCH_SPLIT(dev) && crtc->config->limited_color_range)
1279                         sdvox |= HDMI_COLOR_RANGE_16_235;
1280                 if (INTEL_INFO(dev)->gen < 5)
1281                         sdvox |= SDVO_BORDER_ENABLE;
1282         } else {
1283                 sdvox = I915_READ(intel_sdvo->sdvo_reg);
1284                 if (intel_sdvo->port == PORT_B)
1285                         sdvox &= SDVOB_PRESERVE_MASK;
1286                 else
1287                         sdvox &= SDVOC_PRESERVE_MASK;
1288                 sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
1289         }
1290
1291         if (INTEL_PCH_TYPE(dev) >= PCH_CPT)
1292                 sdvox |= SDVO_PIPE_SEL_CPT(crtc->pipe);
1293         else
1294                 sdvox |= SDVO_PIPE_SEL(crtc->pipe);
1295
1296         if (intel_sdvo->has_hdmi_audio)
1297                 sdvox |= SDVO_AUDIO_ENABLE;
1298
1299         if (INTEL_INFO(dev)->gen >= 4) {
1300                 /* done in crtc_mode_set as the dpll_md reg must be written early */
1301         } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
1302                 /* done in crtc_mode_set as it lives inside the dpll register */
1303         } else {
1304                 sdvox |= (crtc->config->pixel_multiplier - 1)
1305                         << SDVO_PORT_MULTIPLY_SHIFT;
1306         }
1307
1308         if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL &&
1309             INTEL_INFO(dev)->gen < 5)
1310                 sdvox |= SDVO_STALL_SELECT;
1311         intel_sdvo_write_sdvox(intel_sdvo, sdvox);
1312 }
1313
1314 static bool intel_sdvo_connector_get_hw_state(struct intel_connector *connector)
1315 {
1316         struct intel_sdvo_connector *intel_sdvo_connector =
1317                 to_intel_sdvo_connector(&connector->base);
1318         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(&connector->base);
1319         u16 active_outputs = 0;
1320
1321         intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
1322
1323         if (active_outputs & intel_sdvo_connector->output_flag)
1324                 return true;
1325         else
1326                 return false;
1327 }
1328
1329 static bool intel_sdvo_get_hw_state(struct intel_encoder *encoder,
1330                                     enum pipe *pipe)
1331 {
1332         struct drm_device *dev = encoder->base.dev;
1333         struct drm_i915_private *dev_priv = dev->dev_private;
1334         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1335         u16 active_outputs = 0;
1336         u32 tmp;
1337
1338         tmp = I915_READ(intel_sdvo->sdvo_reg);
1339         intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
1340
1341         if (!(tmp & SDVO_ENABLE) && (active_outputs == 0))
1342                 return false;
1343
1344         if (HAS_PCH_CPT(dev))
1345                 *pipe = PORT_TO_PIPE_CPT(tmp);
1346         else
1347                 *pipe = PORT_TO_PIPE(tmp);
1348
1349         return true;
1350 }
1351
1352 static void intel_sdvo_get_config(struct intel_encoder *encoder,
1353                                   struct intel_crtc_state *pipe_config)
1354 {
1355         struct drm_device *dev = encoder->base.dev;
1356         struct drm_i915_private *dev_priv = dev->dev_private;
1357         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1358         struct intel_sdvo_dtd dtd;
1359         int encoder_pixel_multiplier = 0;
1360         int dotclock;
1361         u32 flags = 0, sdvox;
1362         u8 val;
1363         bool ret;
1364
1365         sdvox = I915_READ(intel_sdvo->sdvo_reg);
1366
1367         ret = intel_sdvo_get_input_timing(intel_sdvo, &dtd);
1368         if (!ret) {
1369                 /* Some sdvo encoders are not spec compliant and don't
1370                  * implement the mandatory get_timings function. */
1371                 DRM_DEBUG_DRIVER("failed to retrieve SDVO DTD\n");
1372                 pipe_config->quirks |= PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS;
1373         } else {
1374                 if (dtd.part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
1375                         flags |= DRM_MODE_FLAG_PHSYNC;
1376                 else
1377                         flags |= DRM_MODE_FLAG_NHSYNC;
1378
1379                 if (dtd.part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
1380                         flags |= DRM_MODE_FLAG_PVSYNC;
1381                 else
1382                         flags |= DRM_MODE_FLAG_NVSYNC;
1383         }
1384
1385         pipe_config->base.adjusted_mode.flags |= flags;
1386
1387         /*
1388          * pixel multiplier readout is tricky: Only on i915g/gm it is stored in
1389          * the sdvo port register, on all other platforms it is part of the dpll
1390          * state. Since the general pipe state readout happens before the
1391          * encoder->get_config we so already have a valid pixel multplier on all
1392          * other platfroms.
1393          */
1394         if (IS_I915G(dev) || IS_I915GM(dev)) {
1395                 pipe_config->pixel_multiplier =
1396                         ((sdvox & SDVO_PORT_MULTIPLY_MASK)
1397                          >> SDVO_PORT_MULTIPLY_SHIFT) + 1;
1398         }
1399
1400         dotclock = pipe_config->port_clock;
1401         if (pipe_config->pixel_multiplier)
1402                 dotclock /= pipe_config->pixel_multiplier;
1403
1404         if (HAS_PCH_SPLIT(dev))
1405                 ironlake_check_encoder_dotclock(pipe_config, dotclock);
1406
1407         pipe_config->base.adjusted_mode.crtc_clock = dotclock;
1408
1409         /* Cross check the port pixel multiplier with the sdvo encoder state. */
1410         if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_CLOCK_RATE_MULT,
1411                                  &val, 1)) {
1412                 switch (val) {
1413                 case SDVO_CLOCK_RATE_MULT_1X:
1414                         encoder_pixel_multiplier = 1;
1415                         break;
1416                 case SDVO_CLOCK_RATE_MULT_2X:
1417                         encoder_pixel_multiplier = 2;
1418                         break;
1419                 case SDVO_CLOCK_RATE_MULT_4X:
1420                         encoder_pixel_multiplier = 4;
1421                         break;
1422                 }
1423         }
1424
1425         if (sdvox & HDMI_COLOR_RANGE_16_235)
1426                 pipe_config->limited_color_range = true;
1427
1428         if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ENCODE,
1429                                  &val, 1)) {
1430                 if (val == SDVO_ENCODE_HDMI)
1431                         pipe_config->has_hdmi_sink = true;
1432         }
1433
1434         WARN(encoder_pixel_multiplier != pipe_config->pixel_multiplier,
1435              "SDVO pixel multiplier mismatch, port: %i, encoder: %i\n",
1436              pipe_config->pixel_multiplier, encoder_pixel_multiplier);
1437 }
1438
1439 static void intel_disable_sdvo(struct intel_encoder *encoder)
1440 {
1441         struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
1442         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1443         struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);
1444         u32 temp;
1445
1446         intel_sdvo_set_active_outputs(intel_sdvo, 0);
1447         if (0)
1448                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1449                                                    DRM_MODE_DPMS_OFF);
1450
1451         temp = I915_READ(intel_sdvo->sdvo_reg);
1452
1453         temp &= ~SDVO_ENABLE;
1454         intel_sdvo_write_sdvox(intel_sdvo, temp);
1455
1456         /*
1457          * HW workaround for IBX, we need to move the port
1458          * to transcoder A after disabling it to allow the
1459          * matching DP port to be enabled on transcoder A.
1460          */
1461         if (HAS_PCH_IBX(dev_priv) && crtc->pipe == PIPE_B) {
1462                 /*
1463                  * We get CPU/PCH FIFO underruns on the other pipe when
1464                  * doing the workaround. Sweep them under the rug.
1465                  */
1466                 intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, false);
1467                 intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false);
1468
1469                 temp &= ~SDVO_PIPE_B_SELECT;
1470                 temp |= SDVO_ENABLE;
1471                 intel_sdvo_write_sdvox(intel_sdvo, temp);
1472
1473                 temp &= ~SDVO_ENABLE;
1474                 intel_sdvo_write_sdvox(intel_sdvo, temp);
1475
1476                 intel_wait_for_vblank_if_active(dev_priv->dev, PIPE_A);
1477                 intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, true);
1478                 intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true);
1479         }
1480 }
1481
1482 static void pch_disable_sdvo(struct intel_encoder *encoder)
1483 {
1484 }
1485
1486 static void pch_post_disable_sdvo(struct intel_encoder *encoder)
1487 {
1488         intel_disable_sdvo(encoder);
1489 }
1490
1491 static void intel_enable_sdvo(struct intel_encoder *encoder)
1492 {
1493         struct drm_device *dev = encoder->base.dev;
1494         struct drm_i915_private *dev_priv = dev->dev_private;
1495         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1496         struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
1497         u32 temp;
1498         bool input1, input2;
1499         int i;
1500         bool success;
1501
1502         temp = I915_READ(intel_sdvo->sdvo_reg);
1503         temp |= SDVO_ENABLE;
1504         intel_sdvo_write_sdvox(intel_sdvo, temp);
1505
1506         for (i = 0; i < 2; i++)
1507                 intel_wait_for_vblank(dev, intel_crtc->pipe);
1508
1509         success = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2);
1510         /* Warn if the device reported failure to sync.
1511          * A lot of SDVO devices fail to notify of sync, but it's
1512          * a given it the status is a success, we succeeded.
1513          */
1514         if (success && !input1) {
1515                 DRM_DEBUG_KMS("First %s output reported failure to "
1516                                 "sync\n", SDVO_NAME(intel_sdvo));
1517         }
1518
1519         if (0)
1520                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1521                                                    DRM_MODE_DPMS_ON);
1522         intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1523 }
1524
1525 static enum drm_mode_status
1526 intel_sdvo_mode_valid(struct drm_connector *connector,
1527                       struct drm_display_mode *mode)
1528 {
1529         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1530
1531         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
1532                 return MODE_NO_DBLESCAN;
1533
1534         if (intel_sdvo->pixel_clock_min > mode->clock)
1535                 return MODE_CLOCK_LOW;
1536
1537         if (intel_sdvo->pixel_clock_max < mode->clock)
1538                 return MODE_CLOCK_HIGH;
1539
1540         if (intel_sdvo->is_lvds) {
1541                 if (mode->hdisplay > intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
1542                         return MODE_PANEL;
1543
1544                 if (mode->vdisplay > intel_sdvo->sdvo_lvds_fixed_mode->vdisplay)
1545                         return MODE_PANEL;
1546         }
1547
1548         return MODE_OK;
1549 }
1550
1551 static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct intel_sdvo_caps *caps)
1552 {
1553         BUILD_BUG_ON(sizeof(*caps) != 8);
1554         if (!intel_sdvo_get_value(intel_sdvo,
1555                                   SDVO_CMD_GET_DEVICE_CAPS,
1556                                   caps, sizeof(*caps)))
1557                 return false;
1558
1559         DRM_DEBUG_KMS("SDVO capabilities:\n"
1560                       "  vendor_id: %d\n"
1561                       "  device_id: %d\n"
1562                       "  device_rev_id: %d\n"
1563                       "  sdvo_version_major: %d\n"
1564                       "  sdvo_version_minor: %d\n"
1565                       "  sdvo_inputs_mask: %d\n"
1566                       "  smooth_scaling: %d\n"
1567                       "  sharp_scaling: %d\n"
1568                       "  up_scaling: %d\n"
1569                       "  down_scaling: %d\n"
1570                       "  stall_support: %d\n"
1571                       "  output_flags: %d\n",
1572                       caps->vendor_id,
1573                       caps->device_id,
1574                       caps->device_rev_id,
1575                       caps->sdvo_version_major,
1576                       caps->sdvo_version_minor,
1577                       caps->sdvo_inputs_mask,
1578                       caps->smooth_scaling,
1579                       caps->sharp_scaling,
1580                       caps->up_scaling,
1581                       caps->down_scaling,
1582                       caps->stall_support,
1583                       caps->output_flags);
1584
1585         return true;
1586 }
1587
1588 static uint16_t intel_sdvo_get_hotplug_support(struct intel_sdvo *intel_sdvo)
1589 {
1590         struct drm_device *dev = intel_sdvo->base.base.dev;
1591         uint16_t hotplug;
1592
1593         if (!I915_HAS_HOTPLUG(dev))
1594                 return 0;
1595
1596         /* HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise
1597          * on the line. */
1598         if (IS_I945G(dev) || IS_I945GM(dev))
1599                 return 0;
1600
1601         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
1602                                         &hotplug, sizeof(hotplug)))
1603                 return 0;
1604
1605         return hotplug;
1606 }
1607
1608 static void intel_sdvo_enable_hotplug(struct intel_encoder *encoder)
1609 {
1610         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1611
1612         intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG,
1613                         &intel_sdvo->hotplug_active, 2);
1614 }
1615
1616 static bool
1617 intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
1618 {
1619         /* Is there more than one type of output? */
1620         return hweight16(intel_sdvo->caps.output_flags) > 1;
1621 }
1622
1623 static struct edid *
1624 intel_sdvo_get_edid(struct drm_connector *connector)
1625 {
1626         struct intel_sdvo *sdvo = intel_attached_sdvo(connector);
1627         return drm_get_edid(connector, &sdvo->ddc);
1628 }
1629
1630 /* Mac mini hack -- use the same DDC as the analog connector */
1631 static struct edid *
1632 intel_sdvo_get_analog_edid(struct drm_connector *connector)
1633 {
1634         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1635
1636         return drm_get_edid(connector,
1637                             intel_gmbus_get_adapter(dev_priv,
1638                                                     dev_priv->vbt.crt_ddc_pin));
1639 }
1640
1641 static enum drm_connector_status
1642 intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
1643 {
1644         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1645         enum drm_connector_status status;
1646         struct edid *edid;
1647
1648         edid = intel_sdvo_get_edid(connector);
1649
1650         if (edid == NULL && intel_sdvo_multifunc_encoder(intel_sdvo)) {
1651                 u8 ddc, saved_ddc = intel_sdvo->ddc_bus;
1652
1653                 /*
1654                  * Don't use the 1 as the argument of DDC bus switch to get
1655                  * the EDID. It is used for SDVO SPD ROM.
1656                  */
1657                 for (ddc = intel_sdvo->ddc_bus >> 1; ddc > 1; ddc >>= 1) {
1658                         intel_sdvo->ddc_bus = ddc;
1659                         edid = intel_sdvo_get_edid(connector);
1660                         if (edid)
1661                                 break;
1662                 }
1663                 /*
1664                  * If we found the EDID on the other bus,
1665                  * assume that is the correct DDC bus.
1666                  */
1667                 if (edid == NULL)
1668                         intel_sdvo->ddc_bus = saved_ddc;
1669         }
1670
1671         /*
1672          * When there is no edid and no monitor is connected with VGA
1673          * port, try to use the CRT ddc to read the EDID for DVI-connector.
1674          */
1675         if (edid == NULL)
1676                 edid = intel_sdvo_get_analog_edid(connector);
1677
1678         status = connector_status_unknown;
1679         if (edid != NULL) {
1680                 /* DDC bus is shared, match EDID to connector type */
1681                 if (edid->input & DRM_EDID_INPUT_DIGITAL) {
1682                         status = connector_status_connected;
1683                         if (intel_sdvo->is_hdmi) {
1684                                 intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
1685                                 intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
1686                                 intel_sdvo->rgb_quant_range_selectable =
1687                                         drm_rgb_quant_range_selectable(edid);
1688                         }
1689                 } else
1690                         status = connector_status_disconnected;
1691                 kfree(edid);
1692         }
1693
1694         if (status == connector_status_connected) {
1695                 struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1696                 if (intel_sdvo_connector->force_audio != HDMI_AUDIO_AUTO)
1697                         intel_sdvo->has_hdmi_audio = (intel_sdvo_connector->force_audio == HDMI_AUDIO_ON);
1698         }
1699
1700         return status;
1701 }
1702
1703 static bool
1704 intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
1705                                   struct edid *edid)
1706 {
1707         bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
1708         bool connector_is_digital = !!IS_DIGITAL(sdvo);
1709
1710         DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n",
1711                       connector_is_digital, monitor_is_digital);
1712         return connector_is_digital == monitor_is_digital;
1713 }
1714
1715 static enum drm_connector_status
1716 intel_sdvo_detect(struct drm_connector *connector, bool force)
1717 {
1718         uint16_t response;
1719         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1720         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1721         enum drm_connector_status ret;
1722
1723         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1724                       connector->base.id, connector->name);
1725
1726         if (!intel_sdvo_get_value(intel_sdvo,
1727                                   SDVO_CMD_GET_ATTACHED_DISPLAYS,
1728                                   &response, 2))
1729                 return connector_status_unknown;
1730
1731         DRM_DEBUG_KMS("SDVO response %d %d [%x]\n",
1732                       response & 0xff, response >> 8,
1733                       intel_sdvo_connector->output_flag);
1734
1735         if (response == 0)
1736                 return connector_status_disconnected;
1737
1738         intel_sdvo->attached_output = response;
1739
1740         intel_sdvo->has_hdmi_monitor = false;
1741         intel_sdvo->has_hdmi_audio = false;
1742         intel_sdvo->rgb_quant_range_selectable = false;
1743
1744         if ((intel_sdvo_connector->output_flag & response) == 0)
1745                 ret = connector_status_disconnected;
1746         else if (IS_TMDS(intel_sdvo_connector))
1747                 ret = intel_sdvo_tmds_sink_detect(connector);
1748         else {
1749                 struct edid *edid;
1750
1751                 /* if we have an edid check it matches the connection */
1752                 edid = intel_sdvo_get_edid(connector);
1753                 if (edid == NULL)
1754                         edid = intel_sdvo_get_analog_edid(connector);
1755                 if (edid != NULL) {
1756                         if (intel_sdvo_connector_matches_edid(intel_sdvo_connector,
1757                                                               edid))
1758                                 ret = connector_status_connected;
1759                         else
1760                                 ret = connector_status_disconnected;
1761
1762                         kfree(edid);
1763                 } else
1764                         ret = connector_status_connected;
1765         }
1766
1767         /* May update encoder flag for like clock for SDVO TV, etc.*/
1768         if (ret == connector_status_connected) {
1769                 intel_sdvo->is_tv = false;
1770                 intel_sdvo->is_lvds = false;
1771
1772                 if (response & SDVO_TV_MASK)
1773                         intel_sdvo->is_tv = true;
1774                 if (response & SDVO_LVDS_MASK)
1775                         intel_sdvo->is_lvds = intel_sdvo->sdvo_lvds_fixed_mode != NULL;
1776         }
1777
1778         return ret;
1779 }
1780
1781 static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
1782 {
1783         struct edid *edid;
1784
1785         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1786                       connector->base.id, connector->name);
1787
1788         /* set the bus switch and get the modes */
1789         edid = intel_sdvo_get_edid(connector);
1790
1791         /*
1792          * Mac mini hack.  On this device, the DVI-I connector shares one DDC
1793          * link between analog and digital outputs. So, if the regular SDVO
1794          * DDC fails, check to see if the analog output is disconnected, in
1795          * which case we'll look there for the digital DDC data.
1796          */
1797         if (edid == NULL)
1798                 edid = intel_sdvo_get_analog_edid(connector);
1799
1800         if (edid != NULL) {
1801                 if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector),
1802                                                       edid)) {
1803                         drm_mode_connector_update_edid_property(connector, edid);
1804                         drm_add_edid_modes(connector, edid);
1805                 }
1806
1807                 kfree(edid);
1808         }
1809 }
1810
1811 /*
1812  * Set of SDVO TV modes.
1813  * Note!  This is in reply order (see loop in get_tv_modes).
1814  * XXX: all 60Hz refresh?
1815  */
1816 static const struct drm_display_mode sdvo_tv_modes[] = {
1817         { DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 5815, 320, 321, 384,
1818                    416, 0, 200, 201, 232, 233, 0,
1819                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1820         { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 6814, 320, 321, 384,
1821                    416, 0, 240, 241, 272, 273, 0,
1822                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1823         { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 9910, 400, 401, 464,
1824                    496, 0, 300, 301, 332, 333, 0,
1825                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1826         { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 16913, 640, 641, 704,
1827                    736, 0, 350, 351, 382, 383, 0,
1828                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1829         { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 19121, 640, 641, 704,
1830                    736, 0, 400, 401, 432, 433, 0,
1831                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1832         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 22654, 640, 641, 704,
1833                    736, 0, 480, 481, 512, 513, 0,
1834                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1835         { DRM_MODE("704x480", DRM_MODE_TYPE_DRIVER, 24624, 704, 705, 768,
1836                    800, 0, 480, 481, 512, 513, 0,
1837                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1838         { DRM_MODE("704x576", DRM_MODE_TYPE_DRIVER, 29232, 704, 705, 768,
1839                    800, 0, 576, 577, 608, 609, 0,
1840                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1841         { DRM_MODE("720x350", DRM_MODE_TYPE_DRIVER, 18751, 720, 721, 784,
1842                    816, 0, 350, 351, 382, 383, 0,
1843                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1844         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 21199, 720, 721, 784,
1845                    816, 0, 400, 401, 432, 433, 0,
1846                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1847         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 25116, 720, 721, 784,
1848                    816, 0, 480, 481, 512, 513, 0,
1849                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1850         { DRM_MODE("720x540", DRM_MODE_TYPE_DRIVER, 28054, 720, 721, 784,
1851                    816, 0, 540, 541, 572, 573, 0,
1852                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1853         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 29816, 720, 721, 784,
1854                    816, 0, 576, 577, 608, 609, 0,
1855                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1856         { DRM_MODE("768x576", DRM_MODE_TYPE_DRIVER, 31570, 768, 769, 832,
1857                    864, 0, 576, 577, 608, 609, 0,
1858                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1859         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 34030, 800, 801, 864,
1860                    896, 0, 600, 601, 632, 633, 0,
1861                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1862         { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 36581, 832, 833, 896,
1863                    928, 0, 624, 625, 656, 657, 0,
1864                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1865         { DRM_MODE("920x766", DRM_MODE_TYPE_DRIVER, 48707, 920, 921, 984,
1866                    1016, 0, 766, 767, 798, 799, 0,
1867                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1868         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 53827, 1024, 1025, 1088,
1869                    1120, 0, 768, 769, 800, 801, 0,
1870                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1871         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 87265, 1280, 1281, 1344,
1872                    1376, 0, 1024, 1025, 1056, 1057, 0,
1873                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1874 };
1875
1876 static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
1877 {
1878         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1879         struct intel_sdvo_sdtv_resolution_request tv_res;
1880         uint32_t reply = 0, format_map = 0;
1881         int i;
1882
1883         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1884                       connector->base.id, connector->name);
1885
1886         /* Read the list of supported input resolutions for the selected TV
1887          * format.
1888          */
1889         format_map = 1 << intel_sdvo->tv_format_index;
1890         memcpy(&tv_res, &format_map,
1891                min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request)));
1892
1893         if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo->attached_output))
1894                 return;
1895
1896         BUILD_BUG_ON(sizeof(tv_res) != 3);
1897         if (!intel_sdvo_write_cmd(intel_sdvo,
1898                                   SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT,
1899                                   &tv_res, sizeof(tv_res)))
1900                 return;
1901         if (!intel_sdvo_read_response(intel_sdvo, &reply, 3))
1902                 return;
1903
1904         for (i = 0; i < ARRAY_SIZE(sdvo_tv_modes); i++)
1905                 if (reply & (1 << i)) {
1906                         struct drm_display_mode *nmode;
1907                         nmode = drm_mode_duplicate(connector->dev,
1908                                                    &sdvo_tv_modes[i]);
1909                         if (nmode)
1910                                 drm_mode_probed_add(connector, nmode);
1911                 }
1912 }
1913
1914 static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
1915 {
1916         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1917         struct drm_i915_private *dev_priv = connector->dev->dev_private;
1918         struct drm_display_mode *newmode;
1919
1920         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1921                       connector->base.id, connector->name);
1922
1923         /*
1924          * Fetch modes from VBT. For SDVO prefer the VBT mode since some
1925          * SDVO->LVDS transcoders can't cope with the EDID mode.
1926          */
1927         if (dev_priv->vbt.sdvo_lvds_vbt_mode != NULL) {
1928                 newmode = drm_mode_duplicate(connector->dev,
1929                                              dev_priv->vbt.sdvo_lvds_vbt_mode);
1930                 if (newmode != NULL) {
1931                         /* Guarantee the mode is preferred */
1932                         newmode->type = (DRM_MODE_TYPE_PREFERRED |
1933                                          DRM_MODE_TYPE_DRIVER);
1934                         drm_mode_probed_add(connector, newmode);
1935                 }
1936         }
1937
1938         /*
1939          * Attempt to get the mode list from DDC.
1940          * Assume that the preferred modes are
1941          * arranged in priority order.
1942          */
1943         intel_ddc_get_modes(connector, &intel_sdvo->ddc);
1944
1945         list_for_each_entry(newmode, &connector->probed_modes, head) {
1946                 if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
1947                         intel_sdvo->sdvo_lvds_fixed_mode =
1948                                 drm_mode_duplicate(connector->dev, newmode);
1949
1950                         intel_sdvo->is_lvds = true;
1951                         break;
1952                 }
1953         }
1954 }
1955
1956 static int intel_sdvo_get_modes(struct drm_connector *connector)
1957 {
1958         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1959
1960         if (IS_TV(intel_sdvo_connector))
1961                 intel_sdvo_get_tv_modes(connector);
1962         else if (IS_LVDS(intel_sdvo_connector))
1963                 intel_sdvo_get_lvds_modes(connector);
1964         else
1965                 intel_sdvo_get_ddc_modes(connector);
1966
1967         return !list_empty(&connector->probed_modes);
1968 }
1969
1970 static void intel_sdvo_destroy(struct drm_connector *connector)
1971 {
1972         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1973
1974         drm_connector_cleanup(connector);
1975         kfree(intel_sdvo_connector);
1976 }
1977
1978 static bool intel_sdvo_detect_hdmi_audio(struct drm_connector *connector)
1979 {
1980         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1981         struct edid *edid;
1982         bool has_audio = false;
1983
1984         if (!intel_sdvo->is_hdmi)
1985                 return false;
1986
1987         edid = intel_sdvo_get_edid(connector);
1988         if (edid != NULL && edid->input & DRM_EDID_INPUT_DIGITAL)
1989                 has_audio = drm_detect_monitor_audio(edid);
1990         kfree(edid);
1991
1992         return has_audio;
1993 }
1994
1995 static int
1996 intel_sdvo_set_property(struct drm_connector *connector,
1997                         struct drm_property *property,
1998                         uint64_t val)
1999 {
2000         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
2001         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
2002         struct drm_i915_private *dev_priv = connector->dev->dev_private;
2003         uint16_t temp_value;
2004         uint8_t cmd;
2005         int ret;
2006
2007         ret = drm_object_property_set_value(&connector->base, property, val);
2008         if (ret)
2009                 return ret;
2010
2011         if (property == dev_priv->force_audio_property) {
2012                 int i = val;
2013                 bool has_audio;
2014
2015                 if (i == intel_sdvo_connector->force_audio)
2016                         return 0;
2017
2018                 intel_sdvo_connector->force_audio = i;
2019
2020                 if (i == HDMI_AUDIO_AUTO)
2021                         has_audio = intel_sdvo_detect_hdmi_audio(connector);
2022                 else
2023                         has_audio = (i == HDMI_AUDIO_ON);
2024
2025                 if (has_audio == intel_sdvo->has_hdmi_audio)
2026                         return 0;
2027
2028                 intel_sdvo->has_hdmi_audio = has_audio;
2029                 goto done;
2030         }
2031
2032         if (property == dev_priv->broadcast_rgb_property) {
2033                 bool old_auto = intel_sdvo->color_range_auto;
2034                 uint32_t old_range = intel_sdvo->color_range;
2035
2036                 switch (val) {
2037                 case INTEL_BROADCAST_RGB_AUTO:
2038                         intel_sdvo->color_range_auto = true;
2039                         break;
2040                 case INTEL_BROADCAST_RGB_FULL:
2041                         intel_sdvo->color_range_auto = false;
2042                         intel_sdvo->color_range = 0;
2043                         break;
2044                 case INTEL_BROADCAST_RGB_LIMITED:
2045                         intel_sdvo->color_range_auto = false;
2046                         /* FIXME: this bit is only valid when using TMDS
2047                          * encoding and 8 bit per color mode. */
2048                         intel_sdvo->color_range = HDMI_COLOR_RANGE_16_235;
2049                         break;
2050                 default:
2051                         return -EINVAL;
2052                 }
2053
2054                 if (old_auto == intel_sdvo->color_range_auto &&
2055                     old_range == intel_sdvo->color_range)
2056                         return 0;
2057
2058                 goto done;
2059         }
2060
2061         if (property == connector->dev->mode_config.aspect_ratio_property) {
2062                 switch (val) {
2063                 case DRM_MODE_PICTURE_ASPECT_NONE:
2064                         intel_sdvo->aspect_ratio = HDMI_PICTURE_ASPECT_NONE;
2065                         break;
2066                 case DRM_MODE_PICTURE_ASPECT_4_3:
2067                         intel_sdvo->aspect_ratio = HDMI_PICTURE_ASPECT_4_3;
2068                         break;
2069                 case DRM_MODE_PICTURE_ASPECT_16_9:
2070                         intel_sdvo->aspect_ratio = HDMI_PICTURE_ASPECT_16_9;
2071                         break;
2072                 default:
2073                         return -EINVAL;
2074                 }
2075                 goto done;
2076         }
2077
2078 #define CHECK_PROPERTY(name, NAME) \
2079         if (intel_sdvo_connector->name == property) { \
2080                 if (intel_sdvo_connector->cur_##name == temp_value) return 0; \
2081                 if (intel_sdvo_connector->max_##name < temp_value) return -EINVAL; \
2082                 cmd = SDVO_CMD_SET_##NAME; \
2083                 intel_sdvo_connector->cur_##name = temp_value; \
2084                 goto set_value; \
2085         }
2086
2087         if (property == intel_sdvo_connector->tv_format) {
2088                 if (val >= TV_FORMAT_NUM)
2089                         return -EINVAL;
2090
2091                 if (intel_sdvo->tv_format_index ==
2092                     intel_sdvo_connector->tv_format_supported[val])
2093                         return 0;
2094
2095                 intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[val];
2096                 goto done;
2097         } else if (IS_TV_OR_LVDS(intel_sdvo_connector)) {
2098                 temp_value = val;
2099                 if (intel_sdvo_connector->left == property) {
2100                         drm_object_property_set_value(&connector->base,
2101                                                          intel_sdvo_connector->right, val);
2102                         if (intel_sdvo_connector->left_margin == temp_value)
2103                                 return 0;
2104
2105                         intel_sdvo_connector->left_margin = temp_value;
2106                         intel_sdvo_connector->right_margin = temp_value;
2107                         temp_value = intel_sdvo_connector->max_hscan -
2108                                 intel_sdvo_connector->left_margin;
2109                         cmd = SDVO_CMD_SET_OVERSCAN_H;
2110                         goto set_value;
2111                 } else if (intel_sdvo_connector->right == property) {
2112                         drm_object_property_set_value(&connector->base,
2113                                                          intel_sdvo_connector->left, val);
2114                         if (intel_sdvo_connector->right_margin == temp_value)
2115                                 return 0;
2116
2117                         intel_sdvo_connector->left_margin = temp_value;
2118                         intel_sdvo_connector->right_margin = temp_value;
2119                         temp_value = intel_sdvo_connector->max_hscan -
2120                                 intel_sdvo_connector->left_margin;
2121                         cmd = SDVO_CMD_SET_OVERSCAN_H;
2122                         goto set_value;
2123                 } else if (intel_sdvo_connector->top == property) {
2124                         drm_object_property_set_value(&connector->base,
2125                                                          intel_sdvo_connector->bottom, val);
2126                         if (intel_sdvo_connector->top_margin == temp_value)
2127                                 return 0;
2128
2129                         intel_sdvo_connector->top_margin = temp_value;
2130                         intel_sdvo_connector->bottom_margin = temp_value;
2131                         temp_value = intel_sdvo_connector->max_vscan -
2132                                 intel_sdvo_connector->top_margin;
2133                         cmd = SDVO_CMD_SET_OVERSCAN_V;
2134                         goto set_value;
2135                 } else if (intel_sdvo_connector->bottom == property) {
2136                         drm_object_property_set_value(&connector->base,
2137                                                          intel_sdvo_connector->top, val);
2138                         if (intel_sdvo_connector->bottom_margin == temp_value)
2139                                 return 0;
2140
2141                         intel_sdvo_connector->top_margin = temp_value;
2142                         intel_sdvo_connector->bottom_margin = temp_value;
2143                         temp_value = intel_sdvo_connector->max_vscan -
2144                                 intel_sdvo_connector->top_margin;
2145                         cmd = SDVO_CMD_SET_OVERSCAN_V;
2146                         goto set_value;
2147                 }
2148                 CHECK_PROPERTY(hpos, HPOS)
2149                 CHECK_PROPERTY(vpos, VPOS)
2150                 CHECK_PROPERTY(saturation, SATURATION)
2151                 CHECK_PROPERTY(contrast, CONTRAST)
2152                 CHECK_PROPERTY(hue, HUE)
2153                 CHECK_PROPERTY(brightness, BRIGHTNESS)
2154                 CHECK_PROPERTY(sharpness, SHARPNESS)
2155                 CHECK_PROPERTY(flicker_filter, FLICKER_FILTER)
2156                 CHECK_PROPERTY(flicker_filter_2d, FLICKER_FILTER_2D)
2157                 CHECK_PROPERTY(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE)
2158                 CHECK_PROPERTY(tv_chroma_filter, TV_CHROMA_FILTER)
2159                 CHECK_PROPERTY(tv_luma_filter, TV_LUMA_FILTER)
2160                 CHECK_PROPERTY(dot_crawl, DOT_CRAWL)
2161         }
2162
2163         return -EINVAL; /* unknown property */
2164
2165 set_value:
2166         if (!intel_sdvo_set_value(intel_sdvo, cmd, &temp_value, 2))
2167                 return -EIO;
2168
2169
2170 done:
2171         if (intel_sdvo->base.base.crtc)
2172                 intel_crtc_restore_mode(intel_sdvo->base.base.crtc);
2173
2174         return 0;
2175 #undef CHECK_PROPERTY
2176 }
2177
2178 static const struct drm_connector_funcs intel_sdvo_connector_funcs = {
2179         .dpms = drm_atomic_helper_connector_dpms,
2180         .detect = intel_sdvo_detect,
2181         .fill_modes = drm_helper_probe_single_connector_modes,
2182         .set_property = intel_sdvo_set_property,
2183         .atomic_get_property = intel_connector_atomic_get_property,
2184         .destroy = intel_sdvo_destroy,
2185         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
2186         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
2187 };
2188
2189 static const struct drm_connector_helper_funcs intel_sdvo_connector_helper_funcs = {
2190         .get_modes = intel_sdvo_get_modes,
2191         .mode_valid = intel_sdvo_mode_valid,
2192         .best_encoder = intel_best_encoder,
2193 };
2194
2195 static void intel_sdvo_enc_destroy(struct drm_encoder *encoder)
2196 {
2197         struct intel_sdvo *intel_sdvo = to_sdvo(to_intel_encoder(encoder));
2198
2199         if (intel_sdvo->sdvo_lvds_fixed_mode != NULL)
2200                 drm_mode_destroy(encoder->dev,
2201                                  intel_sdvo->sdvo_lvds_fixed_mode);
2202
2203         i2c_del_adapter(&intel_sdvo->ddc);
2204         intel_encoder_destroy(encoder);
2205 }
2206
2207 static const struct drm_encoder_funcs intel_sdvo_enc_funcs = {
2208         .destroy = intel_sdvo_enc_destroy,
2209 };
2210
2211 static void
2212 intel_sdvo_guess_ddc_bus(struct intel_sdvo *sdvo)
2213 {
2214         uint16_t mask = 0;
2215         unsigned int num_bits;
2216
2217         /* Make a mask of outputs less than or equal to our own priority in the
2218          * list.
2219          */
2220         switch (sdvo->controlled_output) {
2221         case SDVO_OUTPUT_LVDS1:
2222                 mask |= SDVO_OUTPUT_LVDS1;
2223         case SDVO_OUTPUT_LVDS0:
2224                 mask |= SDVO_OUTPUT_LVDS0;
2225         case SDVO_OUTPUT_TMDS1:
2226                 mask |= SDVO_OUTPUT_TMDS1;
2227         case SDVO_OUTPUT_TMDS0:
2228                 mask |= SDVO_OUTPUT_TMDS0;
2229         case SDVO_OUTPUT_RGB1:
2230                 mask |= SDVO_OUTPUT_RGB1;
2231         case SDVO_OUTPUT_RGB0:
2232                 mask |= SDVO_OUTPUT_RGB0;
2233                 break;
2234         }
2235
2236         /* Count bits to find what number we are in the priority list. */
2237         mask &= sdvo->caps.output_flags;
2238         num_bits = hweight16(mask);
2239         /* If more than 3 outputs, default to DDC bus 3 for now. */
2240         if (num_bits > 3)
2241                 num_bits = 3;
2242
2243         /* Corresponds to SDVO_CONTROL_BUS_DDCx */
2244         sdvo->ddc_bus = 1 << num_bits;
2245 }
2246
2247 /**
2248  * Choose the appropriate DDC bus for control bus switch command for this
2249  * SDVO output based on the controlled output.
2250  *
2251  * DDC bus number assignment is in a priority order of RGB outputs, then TMDS
2252  * outputs, then LVDS outputs.
2253  */
2254 static void
2255 intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv,
2256                           struct intel_sdvo *sdvo)
2257 {
2258         struct sdvo_device_mapping *mapping;
2259
2260         if (sdvo->port == PORT_B)
2261                 mapping = &(dev_priv->sdvo_mappings[0]);
2262         else
2263                 mapping = &(dev_priv->sdvo_mappings[1]);
2264
2265         if (mapping->initialized)
2266                 sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
2267         else
2268                 intel_sdvo_guess_ddc_bus(sdvo);
2269 }
2270
2271 static void
2272 intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
2273                           struct intel_sdvo *sdvo)
2274 {
2275         struct sdvo_device_mapping *mapping;
2276         u8 pin;
2277
2278         if (sdvo->port == PORT_B)
2279                 mapping = &dev_priv->sdvo_mappings[0];
2280         else
2281                 mapping = &dev_priv->sdvo_mappings[1];
2282
2283         if (mapping->initialized &&
2284             intel_gmbus_is_valid_pin(dev_priv, mapping->i2c_pin))
2285                 pin = mapping->i2c_pin;
2286         else
2287                 pin = GMBUS_PIN_DPB;
2288
2289         sdvo->i2c = intel_gmbus_get_adapter(dev_priv, pin);
2290
2291         /* With gmbus we should be able to drive sdvo i2c at 2MHz, but somehow
2292          * our code totally fails once we start using gmbus. Hence fall back to
2293          * bit banging for now. */
2294         intel_gmbus_force_bit(sdvo->i2c, true);
2295 }
2296
2297 /* undo any changes intel_sdvo_select_i2c_bus() did to sdvo->i2c */
2298 static void
2299 intel_sdvo_unselect_i2c_bus(struct intel_sdvo *sdvo)
2300 {
2301         intel_gmbus_force_bit(sdvo->i2c, false);
2302 }
2303
2304 static bool
2305 intel_sdvo_is_hdmi_connector(struct intel_sdvo *intel_sdvo, int device)
2306 {
2307         return intel_sdvo_check_supp_encode(intel_sdvo);
2308 }
2309
2310 static u8
2311 intel_sdvo_get_slave_addr(struct drm_device *dev, struct intel_sdvo *sdvo)
2312 {
2313         struct drm_i915_private *dev_priv = dev->dev_private;
2314         struct sdvo_device_mapping *my_mapping, *other_mapping;
2315
2316         if (sdvo->port == PORT_B) {
2317                 my_mapping = &dev_priv->sdvo_mappings[0];
2318                 other_mapping = &dev_priv->sdvo_mappings[1];
2319         } else {
2320                 my_mapping = &dev_priv->sdvo_mappings[1];
2321                 other_mapping = &dev_priv->sdvo_mappings[0];
2322         }
2323
2324         /* If the BIOS described our SDVO device, take advantage of it. */
2325         if (my_mapping->slave_addr)
2326                 return my_mapping->slave_addr;
2327
2328         /* If the BIOS only described a different SDVO device, use the
2329          * address that it isn't using.
2330          */
2331         if (other_mapping->slave_addr) {
2332                 if (other_mapping->slave_addr == 0x70)
2333                         return 0x72;
2334                 else
2335                         return 0x70;
2336         }
2337
2338         /* No SDVO device info is found for another DVO port,
2339          * so use mapping assumption we had before BIOS parsing.
2340          */
2341         if (sdvo->port == PORT_B)
2342                 return 0x70;
2343         else
2344                 return 0x72;
2345 }
2346
2347 static void
2348 intel_sdvo_connector_unregister(struct intel_connector *intel_connector)
2349 {
2350         struct drm_connector *drm_connector;
2351         struct intel_sdvo *sdvo_encoder;
2352
2353         drm_connector = &intel_connector->base;
2354         sdvo_encoder = intel_attached_sdvo(&intel_connector->base);
2355
2356         sysfs_remove_link(&drm_connector->kdev->kobj,
2357                           sdvo_encoder->ddc.dev.kobj.name);
2358         intel_connector_unregister(intel_connector);
2359 }
2360
2361 static int
2362 intel_sdvo_connector_init(struct intel_sdvo_connector *connector,
2363                           struct intel_sdvo *encoder)
2364 {
2365         struct drm_connector *drm_connector;
2366         int ret;
2367
2368         drm_connector = &connector->base.base;
2369         ret = drm_connector_init(encoder->base.base.dev,
2370                            drm_connector,
2371                            &intel_sdvo_connector_funcs,
2372                            connector->base.base.connector_type);
2373         if (ret < 0)
2374                 return ret;
2375
2376         drm_connector_helper_add(drm_connector,
2377                                  &intel_sdvo_connector_helper_funcs);
2378
2379         connector->base.base.interlace_allowed = 1;
2380         connector->base.base.doublescan_allowed = 0;
2381         connector->base.base.display_info.subpixel_order = SubPixelHorizontalRGB;
2382         connector->base.get_hw_state = intel_sdvo_connector_get_hw_state;
2383         connector->base.unregister = intel_sdvo_connector_unregister;
2384
2385         intel_connector_attach_encoder(&connector->base, &encoder->base);
2386         ret = drm_connector_register(drm_connector);
2387         if (ret < 0)
2388                 goto err1;
2389
2390         ret = sysfs_create_link(&drm_connector->kdev->kobj,
2391                                 &encoder->ddc.dev.kobj,
2392                                 encoder->ddc.dev.kobj.name);
2393         if (ret < 0)
2394                 goto err2;
2395
2396         return 0;
2397
2398 err2:
2399         drm_connector_unregister(drm_connector);
2400 err1:
2401         drm_connector_cleanup(drm_connector);
2402
2403         return ret;
2404 }
2405
2406 static void
2407 intel_sdvo_add_hdmi_properties(struct intel_sdvo *intel_sdvo,
2408                                struct intel_sdvo_connector *connector)
2409 {
2410         struct drm_device *dev = connector->base.base.dev;
2411
2412         intel_attach_force_audio_property(&connector->base.base);
2413         if (INTEL_INFO(dev)->gen >= 4 && IS_MOBILE(dev)) {
2414                 intel_attach_broadcast_rgb_property(&connector->base.base);
2415                 intel_sdvo->color_range_auto = true;
2416         }
2417         intel_attach_aspect_ratio_property(&connector->base.base);
2418         intel_sdvo->aspect_ratio = HDMI_PICTURE_ASPECT_NONE;
2419 }
2420
2421 static struct intel_sdvo_connector *intel_sdvo_connector_alloc(void)
2422 {
2423         struct intel_sdvo_connector *sdvo_connector;
2424
2425         sdvo_connector = kzalloc(sizeof(*sdvo_connector), GFP_KERNEL);
2426         if (!sdvo_connector)
2427                 return NULL;
2428
2429         if (intel_connector_init(&sdvo_connector->base) < 0) {
2430                 kfree(sdvo_connector);
2431                 return NULL;
2432         }
2433
2434         return sdvo_connector;
2435 }
2436
2437 static bool
2438 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
2439 {
2440         struct drm_encoder *encoder = &intel_sdvo->base.base;
2441         struct drm_connector *connector;
2442         struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
2443         struct intel_connector *intel_connector;
2444         struct intel_sdvo_connector *intel_sdvo_connector;
2445
2446         DRM_DEBUG_KMS("initialising DVI device %d\n", device);
2447
2448         intel_sdvo_connector = intel_sdvo_connector_alloc();
2449         if (!intel_sdvo_connector)
2450                 return false;
2451
2452         if (device == 0) {
2453                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS0;
2454                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS0;
2455         } else if (device == 1) {
2456                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS1;
2457                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS1;
2458         }
2459
2460         intel_connector = &intel_sdvo_connector->base;
2461         connector = &intel_connector->base;
2462         if (intel_sdvo_get_hotplug_support(intel_sdvo) &
2463                 intel_sdvo_connector->output_flag) {
2464                 intel_sdvo->hotplug_active |= intel_sdvo_connector->output_flag;
2465                 /* Some SDVO devices have one-shot hotplug interrupts.
2466                  * Ensure that they get re-enabled when an interrupt happens.
2467                  */
2468                 intel_encoder->hot_plug = intel_sdvo_enable_hotplug;
2469                 intel_sdvo_enable_hotplug(intel_encoder);
2470         } else {
2471                 intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
2472         }
2473         encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
2474         connector->connector_type = DRM_MODE_CONNECTOR_DVID;
2475
2476         if (intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
2477                 connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
2478                 intel_sdvo->is_hdmi = true;
2479         }
2480
2481         if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2482                 kfree(intel_sdvo_connector);
2483                 return false;
2484         }
2485
2486         if (intel_sdvo->is_hdmi)
2487                 intel_sdvo_add_hdmi_properties(intel_sdvo, intel_sdvo_connector);
2488
2489         return true;
2490 }
2491
2492 static bool
2493 intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
2494 {
2495         struct drm_encoder *encoder = &intel_sdvo->base.base;
2496         struct drm_connector *connector;
2497         struct intel_connector *intel_connector;
2498         struct intel_sdvo_connector *intel_sdvo_connector;
2499
2500         DRM_DEBUG_KMS("initialising TV type %d\n", type);
2501
2502         intel_sdvo_connector = intel_sdvo_connector_alloc();
2503         if (!intel_sdvo_connector)
2504                 return false;
2505
2506         intel_connector = &intel_sdvo_connector->base;
2507         connector = &intel_connector->base;
2508         encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
2509         connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
2510
2511         intel_sdvo->controlled_output |= type;
2512         intel_sdvo_connector->output_flag = type;
2513
2514         intel_sdvo->is_tv = true;
2515
2516         if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2517                 kfree(intel_sdvo_connector);
2518                 return false;
2519         }
2520
2521         if (!intel_sdvo_tv_create_property(intel_sdvo, intel_sdvo_connector, type))
2522                 goto err;
2523
2524         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2525                 goto err;
2526
2527         return true;
2528
2529 err:
2530         drm_connector_unregister(connector);
2531         intel_sdvo_destroy(connector);
2532         return false;
2533 }
2534
2535 static bool
2536 intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device)
2537 {
2538         struct drm_encoder *encoder = &intel_sdvo->base.base;
2539         struct drm_connector *connector;
2540         struct intel_connector *intel_connector;
2541         struct intel_sdvo_connector *intel_sdvo_connector;
2542
2543         DRM_DEBUG_KMS("initialising analog device %d\n", device);
2544
2545         intel_sdvo_connector = intel_sdvo_connector_alloc();
2546         if (!intel_sdvo_connector)
2547                 return false;
2548
2549         intel_connector = &intel_sdvo_connector->base;
2550         connector = &intel_connector->base;
2551         intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT;
2552         encoder->encoder_type = DRM_MODE_ENCODER_DAC;
2553         connector->connector_type = DRM_MODE_CONNECTOR_VGA;
2554
2555         if (device == 0) {
2556                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB0;
2557                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB0;
2558         } else if (device == 1) {
2559                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB1;
2560                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1;
2561         }
2562
2563         if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2564                 kfree(intel_sdvo_connector);
2565                 return false;
2566         }
2567
2568         return true;
2569 }
2570
2571 static bool
2572 intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
2573 {
2574         struct drm_encoder *encoder = &intel_sdvo->base.base;
2575         struct drm_connector *connector;
2576         struct intel_connector *intel_connector;
2577         struct intel_sdvo_connector *intel_sdvo_connector;
2578
2579         DRM_DEBUG_KMS("initialising LVDS device %d\n", device);
2580
2581         intel_sdvo_connector = intel_sdvo_connector_alloc();
2582         if (!intel_sdvo_connector)
2583                 return false;
2584
2585         intel_connector = &intel_sdvo_connector->base;
2586         connector = &intel_connector->base;
2587         encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
2588         connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
2589
2590         if (device == 0) {
2591                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS0;
2592                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS0;
2593         } else if (device == 1) {
2594                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS1;
2595                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1;
2596         }
2597
2598         if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2599                 kfree(intel_sdvo_connector);
2600                 return false;
2601         }
2602
2603         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2604                 goto err;
2605
2606         return true;
2607
2608 err:
2609         drm_connector_unregister(connector);
2610         intel_sdvo_destroy(connector);
2611         return false;
2612 }
2613
2614 static bool
2615 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
2616 {
2617         intel_sdvo->is_tv = false;
2618         intel_sdvo->is_lvds = false;
2619
2620         /* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
2621
2622         if (flags & SDVO_OUTPUT_TMDS0)
2623                 if (!intel_sdvo_dvi_init(intel_sdvo, 0))
2624                         return false;
2625
2626         if ((flags & SDVO_TMDS_MASK) == SDVO_TMDS_MASK)
2627                 if (!intel_sdvo_dvi_init(intel_sdvo, 1))
2628                         return false;
2629
2630         /* TV has no XXX1 function block */
2631         if (flags & SDVO_OUTPUT_SVID0)
2632                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_SVID0))
2633                         return false;
2634
2635         if (flags & SDVO_OUTPUT_CVBS0)
2636                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_CVBS0))
2637                         return false;
2638
2639         if (flags & SDVO_OUTPUT_YPRPB0)
2640                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_YPRPB0))
2641                         return false;
2642
2643         if (flags & SDVO_OUTPUT_RGB0)
2644                 if (!intel_sdvo_analog_init(intel_sdvo, 0))
2645                         return false;
2646
2647         if ((flags & SDVO_RGB_MASK) == SDVO_RGB_MASK)
2648                 if (!intel_sdvo_analog_init(intel_sdvo, 1))
2649                         return false;
2650
2651         if (flags & SDVO_OUTPUT_LVDS0)
2652                 if (!intel_sdvo_lvds_init(intel_sdvo, 0))
2653                         return false;
2654
2655         if ((flags & SDVO_LVDS_MASK) == SDVO_LVDS_MASK)
2656                 if (!intel_sdvo_lvds_init(intel_sdvo, 1))
2657                         return false;
2658
2659         if ((flags & SDVO_OUTPUT_MASK) == 0) {
2660                 unsigned char bytes[2];
2661
2662                 intel_sdvo->controlled_output = 0;
2663                 memcpy(bytes, &intel_sdvo->caps.output_flags, 2);
2664                 DRM_DEBUG_KMS("%s: Unknown SDVO output type (0x%02x%02x)\n",
2665                               SDVO_NAME(intel_sdvo),
2666                               bytes[0], bytes[1]);
2667                 return false;
2668         }
2669         intel_sdvo->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
2670
2671         return true;
2672 }
2673
2674 static void intel_sdvo_output_cleanup(struct intel_sdvo *intel_sdvo)
2675 {
2676         struct drm_device *dev = intel_sdvo->base.base.dev;
2677         struct drm_connector *connector, *tmp;
2678
2679         list_for_each_entry_safe(connector, tmp,
2680                                  &dev->mode_config.connector_list, head) {
2681                 if (intel_attached_encoder(connector) == &intel_sdvo->base) {
2682                         drm_connector_unregister(connector);
2683                         intel_sdvo_destroy(connector);
2684                 }
2685         }
2686 }
2687
2688 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
2689                                           struct intel_sdvo_connector *intel_sdvo_connector,
2690                                           int type)
2691 {
2692         struct drm_device *dev = intel_sdvo->base.base.dev;
2693         struct intel_sdvo_tv_format format;
2694         uint32_t format_map, i;
2695
2696         if (!intel_sdvo_set_target_output(intel_sdvo, type))
2697                 return false;
2698
2699         BUILD_BUG_ON(sizeof(format) != 6);
2700         if (!intel_sdvo_get_value(intel_sdvo,
2701                                   SDVO_CMD_GET_SUPPORTED_TV_FORMATS,
2702                                   &format, sizeof(format)))
2703                 return false;
2704
2705         memcpy(&format_map, &format, min(sizeof(format_map), sizeof(format)));
2706
2707         if (format_map == 0)
2708                 return false;
2709
2710         intel_sdvo_connector->format_supported_num = 0;
2711         for (i = 0 ; i < TV_FORMAT_NUM; i++)
2712                 if (format_map & (1 << i))
2713                         intel_sdvo_connector->tv_format_supported[intel_sdvo_connector->format_supported_num++] = i;
2714
2715
2716         intel_sdvo_connector->tv_format =
2717                         drm_property_create(dev, DRM_MODE_PROP_ENUM,
2718                                             "mode", intel_sdvo_connector->format_supported_num);
2719         if (!intel_sdvo_connector->tv_format)
2720                 return false;
2721
2722         for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
2723                 drm_property_add_enum(
2724                                 intel_sdvo_connector->tv_format, i,
2725                                 i, tv_format_names[intel_sdvo_connector->tv_format_supported[i]]);
2726
2727         intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[0];
2728         drm_object_attach_property(&intel_sdvo_connector->base.base.base,
2729                                       intel_sdvo_connector->tv_format, 0);
2730         return true;
2731
2732 }
2733
2734 #define ENHANCEMENT(name, NAME) do { \
2735         if (enhancements.name) { \
2736                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_MAX_##NAME, &data_value, 4) || \
2737                     !intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_##NAME, &response, 2)) \
2738                         return false; \
2739                 intel_sdvo_connector->max_##name = data_value[0]; \
2740                 intel_sdvo_connector->cur_##name = response; \
2741                 intel_sdvo_connector->name = \
2742                         drm_property_create_range(dev, 0, #name, 0, data_value[0]); \
2743                 if (!intel_sdvo_connector->name) return false; \
2744                 drm_object_attach_property(&connector->base, \
2745                                               intel_sdvo_connector->name, \
2746                                               intel_sdvo_connector->cur_##name); \
2747                 DRM_DEBUG_KMS(#name ": max %d, default %d, current %d\n", \
2748                               data_value[0], data_value[1], response); \
2749         } \
2750 } while (0)
2751
2752 static bool
2753 intel_sdvo_create_enhance_property_tv(struct intel_sdvo *intel_sdvo,
2754                                       struct intel_sdvo_connector *intel_sdvo_connector,
2755                                       struct intel_sdvo_enhancements_reply enhancements)
2756 {
2757         struct drm_device *dev = intel_sdvo->base.base.dev;
2758         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2759         uint16_t response, data_value[2];
2760
2761         /* when horizontal overscan is supported, Add the left/right  property */
2762         if (enhancements.overscan_h) {
2763                 if (!intel_sdvo_get_value(intel_sdvo,
2764                                           SDVO_CMD_GET_MAX_OVERSCAN_H,
2765                                           &data_value, 4))
2766                         return false;
2767
2768                 if (!intel_sdvo_get_value(intel_sdvo,
2769                                           SDVO_CMD_GET_OVERSCAN_H,
2770                                           &response, 2))
2771                         return false;
2772
2773                 intel_sdvo_connector->max_hscan = data_value[0];
2774                 intel_sdvo_connector->left_margin = data_value[0] - response;
2775                 intel_sdvo_connector->right_margin = intel_sdvo_connector->left_margin;
2776                 intel_sdvo_connector->left =
2777                         drm_property_create_range(dev, 0, "left_margin", 0, data_value[0]);
2778                 if (!intel_sdvo_connector->left)
2779                         return false;
2780
2781                 drm_object_attach_property(&connector->base,
2782                                               intel_sdvo_connector->left,
2783                                               intel_sdvo_connector->left_margin);
2784
2785                 intel_sdvo_connector->right =
2786                         drm_property_create_range(dev, 0, "right_margin", 0, data_value[0]);
2787                 if (!intel_sdvo_connector->right)
2788                         return false;
2789
2790                 drm_object_attach_property(&connector->base,
2791                                               intel_sdvo_connector->right,
2792                                               intel_sdvo_connector->right_margin);
2793                 DRM_DEBUG_KMS("h_overscan: max %d, "
2794                               "default %d, current %d\n",
2795                               data_value[0], data_value[1], response);
2796         }
2797
2798         if (enhancements.overscan_v) {
2799                 if (!intel_sdvo_get_value(intel_sdvo,
2800                                           SDVO_CMD_GET_MAX_OVERSCAN_V,
2801                                           &data_value, 4))
2802                         return false;
2803
2804                 if (!intel_sdvo_get_value(intel_sdvo,
2805                                           SDVO_CMD_GET_OVERSCAN_V,
2806                                           &response, 2))
2807                         return false;
2808
2809                 intel_sdvo_connector->max_vscan = data_value[0];
2810                 intel_sdvo_connector->top_margin = data_value[0] - response;
2811                 intel_sdvo_connector->bottom_margin = intel_sdvo_connector->top_margin;
2812                 intel_sdvo_connector->top =
2813                         drm_property_create_range(dev, 0,
2814                                             "top_margin", 0, data_value[0]);
2815                 if (!intel_sdvo_connector->top)
2816                         return false;
2817
2818                 drm_object_attach_property(&connector->base,
2819                                               intel_sdvo_connector->top,
2820                                               intel_sdvo_connector->top_margin);
2821
2822                 intel_sdvo_connector->bottom =
2823                         drm_property_create_range(dev, 0,
2824                                             "bottom_margin", 0, data_value[0]);
2825                 if (!intel_sdvo_connector->bottom)
2826                         return false;
2827
2828                 drm_object_attach_property(&connector->base,
2829                                               intel_sdvo_connector->bottom,
2830                                               intel_sdvo_connector->bottom_margin);
2831                 DRM_DEBUG_KMS("v_overscan: max %d, "
2832                               "default %d, current %d\n",
2833                               data_value[0], data_value[1], response);
2834         }
2835
2836         ENHANCEMENT(hpos, HPOS);
2837         ENHANCEMENT(vpos, VPOS);
2838         ENHANCEMENT(saturation, SATURATION);
2839         ENHANCEMENT(contrast, CONTRAST);
2840         ENHANCEMENT(hue, HUE);
2841         ENHANCEMENT(sharpness, SHARPNESS);
2842         ENHANCEMENT(brightness, BRIGHTNESS);
2843         ENHANCEMENT(flicker_filter, FLICKER_FILTER);
2844         ENHANCEMENT(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
2845         ENHANCEMENT(flicker_filter_2d, FLICKER_FILTER_2D);
2846         ENHANCEMENT(tv_chroma_filter, TV_CHROMA_FILTER);
2847         ENHANCEMENT(tv_luma_filter, TV_LUMA_FILTER);
2848
2849         if (enhancements.dot_crawl) {
2850                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_DOT_CRAWL, &response, 2))
2851                         return false;
2852
2853                 intel_sdvo_connector->max_dot_crawl = 1;
2854                 intel_sdvo_connector->cur_dot_crawl = response & 0x1;
2855                 intel_sdvo_connector->dot_crawl =
2856                         drm_property_create_range(dev, 0, "dot_crawl", 0, 1);
2857                 if (!intel_sdvo_connector->dot_crawl)
2858                         return false;
2859
2860                 drm_object_attach_property(&connector->base,
2861                                               intel_sdvo_connector->dot_crawl,
2862                                               intel_sdvo_connector->cur_dot_crawl);
2863                 DRM_DEBUG_KMS("dot crawl: current %d\n", response);
2864         }
2865
2866         return true;
2867 }
2868
2869 static bool
2870 intel_sdvo_create_enhance_property_lvds(struct intel_sdvo *intel_sdvo,
2871                                         struct intel_sdvo_connector *intel_sdvo_connector,
2872                                         struct intel_sdvo_enhancements_reply enhancements)
2873 {
2874         struct drm_device *dev = intel_sdvo->base.base.dev;
2875         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2876         uint16_t response, data_value[2];
2877
2878         ENHANCEMENT(brightness, BRIGHTNESS);
2879
2880         return true;
2881 }
2882 #undef ENHANCEMENT
2883
2884 static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
2885                                                struct intel_sdvo_connector *intel_sdvo_connector)
2886 {
2887         union {
2888                 struct intel_sdvo_enhancements_reply reply;
2889                 uint16_t response;
2890         } enhancements;
2891
2892         BUILD_BUG_ON(sizeof(enhancements) != 2);
2893
2894         enhancements.response = 0;
2895         intel_sdvo_get_value(intel_sdvo,
2896                              SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
2897                              &enhancements, sizeof(enhancements));
2898         if (enhancements.response == 0) {
2899                 DRM_DEBUG_KMS("No enhancement is supported\n");
2900                 return true;
2901         }
2902
2903         if (IS_TV(intel_sdvo_connector))
2904                 return intel_sdvo_create_enhance_property_tv(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2905         else if (IS_LVDS(intel_sdvo_connector))
2906                 return intel_sdvo_create_enhance_property_lvds(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2907         else
2908                 return true;
2909 }
2910
2911 static int intel_sdvo_ddc_proxy_xfer(struct i2c_adapter *adapter,
2912                                      struct i2c_msg *msgs,
2913                                      int num)
2914 {
2915         struct intel_sdvo *sdvo = adapter->algo_data;
2916
2917         if (!intel_sdvo_set_control_bus_switch(sdvo, sdvo->ddc_bus))
2918                 return -EIO;
2919
2920         return sdvo->i2c->algo->master_xfer(sdvo->i2c, msgs, num);
2921 }
2922
2923 static u32 intel_sdvo_ddc_proxy_func(struct i2c_adapter *adapter)
2924 {
2925         struct intel_sdvo *sdvo = adapter->algo_data;
2926         return sdvo->i2c->algo->functionality(sdvo->i2c);
2927 }
2928
2929 static const struct i2c_algorithm intel_sdvo_ddc_proxy = {
2930         .master_xfer    = intel_sdvo_ddc_proxy_xfer,
2931         .functionality  = intel_sdvo_ddc_proxy_func
2932 };
2933
2934 static bool
2935 intel_sdvo_init_ddc_proxy(struct intel_sdvo *sdvo,
2936                           struct drm_device *dev)
2937 {
2938         sdvo->ddc.owner = THIS_MODULE;
2939         sdvo->ddc.class = I2C_CLASS_DDC;
2940         snprintf(sdvo->ddc.name, I2C_NAME_SIZE, "SDVO DDC proxy");
2941         sdvo->ddc.dev.parent = &dev->pdev->dev;
2942         sdvo->ddc.algo_data = sdvo;
2943         sdvo->ddc.algo = &intel_sdvo_ddc_proxy;
2944
2945         return i2c_add_adapter(&sdvo->ddc) == 0;
2946 }
2947
2948 static void assert_sdvo_port_valid(const struct drm_i915_private *dev_priv,
2949                                    enum port port)
2950 {
2951         if (HAS_PCH_SPLIT(dev_priv))
2952                 WARN_ON(port != PORT_B);
2953         else
2954                 WARN_ON(port != PORT_B && port != PORT_C);
2955 }
2956
2957 bool intel_sdvo_init(struct drm_device *dev,
2958                      i915_reg_t sdvo_reg, enum port port)
2959 {
2960         struct drm_i915_private *dev_priv = dev->dev_private;
2961         struct intel_encoder *intel_encoder;
2962         struct intel_sdvo *intel_sdvo;
2963         int i;
2964
2965         assert_sdvo_port_valid(dev_priv, port);
2966
2967         intel_sdvo = kzalloc(sizeof(*intel_sdvo), GFP_KERNEL);
2968         if (!intel_sdvo)
2969                 return false;
2970
2971         intel_sdvo->sdvo_reg = sdvo_reg;
2972         intel_sdvo->port = port;
2973         intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(dev, intel_sdvo) >> 1;
2974         intel_sdvo_select_i2c_bus(dev_priv, intel_sdvo);
2975         if (!intel_sdvo_init_ddc_proxy(intel_sdvo, dev))
2976                 goto err_i2c_bus;
2977
2978         /* encoder type will be decided later */
2979         intel_encoder = &intel_sdvo->base;
2980         intel_encoder->type = INTEL_OUTPUT_SDVO;
2981         drm_encoder_init(dev, &intel_encoder->base, &intel_sdvo_enc_funcs, 0,
2982                          NULL);
2983
2984         /* Read the regs to test if we can talk to the device */
2985         for (i = 0; i < 0x40; i++) {
2986                 u8 byte;
2987
2988                 if (!intel_sdvo_read_byte(intel_sdvo, i, &byte)) {
2989                         DRM_DEBUG_KMS("No SDVO device found on %s\n",
2990                                       SDVO_NAME(intel_sdvo));
2991                         goto err;
2992                 }
2993         }
2994
2995         intel_encoder->compute_config = intel_sdvo_compute_config;
2996         if (HAS_PCH_SPLIT(dev)) {
2997                 intel_encoder->disable = pch_disable_sdvo;
2998                 intel_encoder->post_disable = pch_post_disable_sdvo;
2999         } else {
3000                 intel_encoder->disable = intel_disable_sdvo;
3001         }
3002         intel_encoder->pre_enable = intel_sdvo_pre_enable;
3003         intel_encoder->enable = intel_enable_sdvo;
3004         intel_encoder->get_hw_state = intel_sdvo_get_hw_state;
3005         intel_encoder->get_config = intel_sdvo_get_config;
3006
3007         /* In default case sdvo lvds is false */
3008         if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
3009                 goto err;
3010
3011         if (intel_sdvo_output_setup(intel_sdvo,
3012                                     intel_sdvo->caps.output_flags) != true) {
3013                 DRM_DEBUG_KMS("SDVO output failed to setup on %s\n",
3014                               SDVO_NAME(intel_sdvo));
3015                 /* Output_setup can leave behind connectors! */
3016                 goto err_output;
3017         }
3018
3019         /* Only enable the hotplug irq if we need it, to work around noisy
3020          * hotplug lines.
3021          */
3022         if (intel_sdvo->hotplug_active) {
3023                 if (intel_sdvo->port == PORT_B)
3024                         intel_encoder->hpd_pin = HPD_SDVO_B;
3025                 else
3026                         intel_encoder->hpd_pin = HPD_SDVO_C;
3027         }
3028
3029         /*
3030          * Cloning SDVO with anything is often impossible, since the SDVO
3031          * encoder can request a special input timing mode. And even if that's
3032          * not the case we have evidence that cloning a plain unscaled mode with
3033          * VGA doesn't really work. Furthermore the cloning flags are way too
3034          * simplistic anyway to express such constraints, so just give up on
3035          * cloning for SDVO encoders.
3036          */
3037         intel_sdvo->base.cloneable = 0;
3038
3039         intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo);
3040
3041         /* Set the input timing to the screen. Assume always input 0. */
3042         if (!intel_sdvo_set_target_input(intel_sdvo))
3043                 goto err_output;
3044
3045         if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
3046                                                     &intel_sdvo->pixel_clock_min,
3047                                                     &intel_sdvo->pixel_clock_max))
3048                 goto err_output;
3049
3050         DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
3051                         "clock range %dMHz - %dMHz, "
3052                         "input 1: %c, input 2: %c, "
3053                         "output 1: %c, output 2: %c\n",
3054                         SDVO_NAME(intel_sdvo),
3055                         intel_sdvo->caps.vendor_id, intel_sdvo->caps.device_id,
3056                         intel_sdvo->caps.device_rev_id,
3057                         intel_sdvo->pixel_clock_min / 1000,
3058                         intel_sdvo->pixel_clock_max / 1000,
3059                         (intel_sdvo->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
3060                         (intel_sdvo->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
3061                         /* check currently supported outputs */
3062                         intel_sdvo->caps.output_flags &
3063                         (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
3064                         intel_sdvo->caps.output_flags &
3065                         (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
3066         return true;
3067
3068 err_output:
3069         intel_sdvo_output_cleanup(intel_sdvo);
3070
3071 err:
3072         drm_encoder_cleanup(&intel_encoder->base);
3073         i2c_del_adapter(&intel_sdvo->ddc);
3074 err_i2c_bus:
3075         intel_sdvo_unselect_i2c_bus(intel_sdvo);
3076         kfree(intel_sdvo);
3077
3078         return false;
3079 }