drivers/gpu/drm/i915/intel_sdvo.c

   1 /*
   2  * Copyright 2006 Dave Airlie <[email protected]>
   3  * Copyright © 2006-2007 Intel Corporation
   4  *   Jesse Barnes <[email protected]>
   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 <[email protected]>
  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 set if we're going to treat the device as TV-out.
 104          *
 105          * While we have these nice friendly flags for output types that ought
 106          * to decide this for us, the S-Video output on our HDMI+S-Video card
 107          * shows up as RGB1 (VGA).
 108          */
 109         bool is_tv;
 110
 111         enum port port;
 112
 113         /**
 114          * This is set if we treat the device as HDMI, instead of DVI.
 115          */
 116         bool is_hdmi;
 117         bool has_hdmi_monitor;
 118         bool has_hdmi_audio;
 119         bool rgb_quant_range_selectable;
 120
 121         /**
 122          * This is set if we detect output of sdvo device as LVDS and
 123          * have a valid fixed mode to use with the panel.
 124          */
 125         bool is_lvds;
 126
 127         /**
 128          * This is sdvo fixed pannel mode pointer
 129          */
 130         struct drm_display_mode *sdvo_lvds_fixed_mode;
 131
 132         /* DDC bus used by this SDVO encoder */
 133         uint8_t ddc_bus;
 134
 135         /*
 136          * the sdvo flag gets lost in round trip: dtd->adjusted_mode->dtd
 137          */
 138         uint8_t dtd_sdvo_flags;
 139 };
 140
 141 struct intel_sdvo_connector {
 142         struct intel_connector base;
 143
 144         /* Mark the type of connector */
 145         uint16_t output_flag;
 146
 147         /* This contains all current supported TV format */
 148         u8 tv_format_supported[TV_FORMAT_NUM];
 149         int   format_supported_num;
 150         struct drm_property *tv_format;
 151
 152         /* add the property for the SDVO-TV */
 153         struct drm_property *left;
 154         struct drm_property *right;
 155         struct drm_property *top;
 156         struct drm_property *bottom;
 157         struct drm_property *hpos;
 158         struct drm_property *vpos;
 159         struct drm_property *contrast;
 160         struct drm_property *saturation;
 161         struct drm_property *hue;
 162         struct drm_property *sharpness;
 163         struct drm_property *flicker_filter;
 164         struct drm_property *flicker_filter_adaptive;
 165         struct drm_property *flicker_filter_2d;
 166         struct drm_property *tv_chroma_filter;
 167         struct drm_property *tv_luma_filter;
 168         struct drm_property *dot_crawl;
 169
 170         /* add the property for the SDVO-TV/LVDS */
 171         struct drm_property *brightness;
 172
 173         /* this is to get the range of margin.*/
 174         u32 max_hscan, max_vscan;
 175 };
 176
 177 struct intel_sdvo_connector_state {
 178         /* base.base: tv.saturation/contrast/hue/brightness */
 179         struct intel_digital_connector_state base;
 180
 181         struct {
 182                 unsigned overscan_h, overscan_v, hpos, vpos, sharpness;
 183                 unsigned flicker_filter, flicker_filter_2d, flicker_filter_adaptive;
 184                 unsigned chroma_filter, luma_filter, dot_crawl;
 185         } tv;
 186 };
 187
 188 static struct intel_sdvo *to_sdvo(struct intel_encoder *encoder)
 189 {
 190         return container_of(encoder, struct intel_sdvo, base);
 191 }
 192
 193 static struct intel_sdvo *intel_attached_sdvo(struct drm_connector *connector)
 194 {
 195         return to_sdvo(intel_attached_encoder(connector));
 196 }
 197
 198 static struct intel_sdvo_connector *
 199 to_intel_sdvo_connector(struct drm_connector *connector)
 200 {
 201         return container_of(connector, struct intel_sdvo_connector, base.base);
 202 }
 203
 204 #define to_intel_sdvo_connector_state(conn_state) \
 205         container_of((conn_state), struct intel_sdvo_connector_state, base.base)
 206
 207 static bool
 208 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags);
 209 static bool
 210 intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
 211                               struct intel_sdvo_connector *intel_sdvo_connector,
 212                               int type);
 213 static bool
 214 intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
 215                                    struct intel_sdvo_connector *intel_sdvo_connector);
 216
 217 /**
 218  * Writes the SDVOB or SDVOC with the given value, but always writes both
 219  * SDVOB and SDVOC to work around apparent hardware issues (according to
 220  * comments in the BIOS).
 221  */
 222 static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val)
 223 {
 224         struct drm_device *dev = intel_sdvo->base.base.dev;
 225         struct drm_i915_private *dev_priv = to_i915(dev);
 226         u32 bval = val, cval = val;
 227         int i;
 228
 229         if (HAS_PCH_SPLIT(dev_priv)) {
 230                 I915_WRITE(intel_sdvo->sdvo_reg, val);
 231                 POSTING_READ(intel_sdvo->sdvo_reg);
 232                 /*
 233                  * HW workaround, need to write this twice for issue
 234                  * that may result in first write getting masked.
 235                  */
 236                 if (HAS_PCH_IBX(dev_priv)) {
 237                         I915_WRITE(intel_sdvo->sdvo_reg, val);
 238                         POSTING_READ(intel_sdvo->sdvo_reg);
 239                 }
 240                 return;
 241         }
 242
 243         if (intel_sdvo->port == PORT_B)
 244                 cval = I915_READ(GEN3_SDVOC);
 245         else
 246                 bval = I915_READ(GEN3_SDVOB);
 247
 248         /*
 249          * Write the registers twice for luck. Sometimes,
 250          * writing them only once doesn't appear to 'stick'.
 251          * The BIOS does this too. Yay, magic
 252          */
 253         for (i = 0; i < 2; i++)
 254         {
 255                 I915_WRITE(GEN3_SDVOB, bval);
 256                 POSTING_READ(GEN3_SDVOB);
 257                 I915_WRITE(GEN3_SDVOC, cval);
 258                 POSTING_READ(GEN3_SDVOC);
 259         }
 260 }
 261
 262 static bool intel_sdvo_read_byte(struct intel_sdvo *intel_sdvo, u8 addr, u8 *ch)
 263 {
 264         struct i2c_msg msgs[] = {
 265                 {
 266                         .addr = intel_sdvo->slave_addr,
 267                         .flags = 0,
 268                         .len = 1,
 269                         .buf = &addr,
 270                 },
 271                 {
 272                         .addr = intel_sdvo->slave_addr,
 273                         .flags = I2C_M_RD,
 274                         .len = 1,
 275                         .buf = ch,
 276                 }
 277         };
 278         int ret;
 279
 280         if ((ret = i2c_transfer(intel_sdvo->i2c, msgs, 2)) == 2)
 281                 return true;
 282
 283         DRM_DEBUG_KMS("i2c transfer returned %d\n", ret);
 284         return false;
 285 }
 286
 287 #define SDVO_CMD_NAME_ENTRY(cmd) {cmd, #cmd}
 288 /** Mapping of command numbers to names, for debug output */
 289 static const struct _sdvo_cmd_name {
 290         u8 cmd;
 291         const char *name;
 292 } __attribute__ ((packed)) sdvo_cmd_names[] = {
 293         SDVO_CMD_NAME_ENTRY(SDVO_CMD_RESET),
 294         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DEVICE_CAPS),
 295         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FIRMWARE_REV),
 296         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TRAINED_INPUTS),
 297         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_OUTPUTS),
 298         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_OUTPUTS),
 299         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_IN_OUT_MAP),
 300         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_IN_OUT_MAP),
 301         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ATTACHED_DISPLAYS),
 302         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HOT_PLUG_SUPPORT),
 303         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_HOT_PLUG),
 304         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_HOT_PLUG),
 305         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INTERRUPT_EVENT_SOURCE),
 306         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_INPUT),
 307         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_OUTPUT),
 308         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART1),
 309         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART2),
 310         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 311         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART2),
 312         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
 313         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART1),
 314         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART2),
 315         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART1),
 316         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART2),
 317         SDVO_CMD_NAME_ENTRY(SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING),
 318         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1),
 319         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2),
 320         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE),
 321         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_PIXEL_CLOCK_RANGE),
 322         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_CLOCK_RATE_MULTS),
 323         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CLOCK_RATE_MULT),
 324         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CLOCK_RATE_MULT),
 325         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_TV_FORMATS),
 326         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_FORMAT),
 327         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_FORMAT),
 328         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_POWER_STATES),
 329         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_POWER_STATE),
 330         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODER_POWER_STATE),
 331         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DISPLAY_POWER_STATE),
 332         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTROL_BUS_SWITCH),
 333         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT),
 334         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SCALED_HDTV_RESOLUTION_SUPPORT),
 335         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS),
 336
 337         /* Add the op code for SDVO enhancements */
 338         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HPOS),
 339         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HPOS),
 340         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HPOS),
 341         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_VPOS),
 342         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_VPOS),
 343         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_VPOS),
 344         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SATURATION),
 345         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SATURATION),
 346         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SATURATION),
 347         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HUE),
 348         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HUE),
 349         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HUE),
 350         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_CONTRAST),
 351         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CONTRAST),
 352         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTRAST),
 353         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_BRIGHTNESS),
 354         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_BRIGHTNESS),
 355         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_BRIGHTNESS),
 356         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_H),
 357         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_H),
 358         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_H),
 359         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_V),
 360         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_V),
 361         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_V),
 362         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER),
 363         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER),
 364         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER),
 365         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_ADAPTIVE),
 366         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_ADAPTIVE),
 367         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_ADAPTIVE),
 368         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_2D),
 369         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_2D),
 370         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_2D),
 371         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SHARPNESS),
 372         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SHARPNESS),
 373         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SHARPNESS),
 374         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DOT_CRAWL),
 375         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DOT_CRAWL),
 376         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_CHROMA_FILTER),
 377         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_CHROMA_FILTER),
 378         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_CHROMA_FILTER),
 379         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_LUMA_FILTER),
 380         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_LUMA_FILTER),
 381         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_LUMA_FILTER),
 382
 383         /* HDMI op code */
 384         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPP_ENCODE),
 385         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ENCODE),
 386         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODE),
 387         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_PIXEL_REPLI),
 388         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PIXEL_REPLI),
 389         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY_CAP),
 390         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_COLORIMETRY),
 391         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY),
 392         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_ENCRYPT_PREFER),
 393         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_AUDIO_STAT),
 394         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_STAT),
 395         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INDEX),
 396         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_INDEX),
 397         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INFO),
 398         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_AV_SPLIT),
 399         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_AV_SPLIT),
 400         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_TXRATE),
 401         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_TXRATE),
 402         SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_DATA),
 403         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_DATA),
 404 };
 405
 406 #define SDVO_NAME(svdo) ((svdo)->port == PORT_B ? "SDVOB" : "SDVOC")
 407
 408 static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd,
 409                                    const void *args, int args_len)
 410 {
 411         int i, pos = 0;
 412 #define BUF_LEN 256
 413         char buffer[BUF_LEN];
 414
 415 #define BUF_PRINT(args...) \
 416         pos += snprintf(buffer + pos, max_t(int, BUF_LEN - pos, 0), args)
 417
 418
 419         for (i = 0; i < args_len; i++) {
 420                 BUF_PRINT("%02X ", ((u8 *)args)[i]);
 421         }
 422         for (; i < 8; i++) {
 423                 BUF_PRINT("   ");
 424         }
 425         for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) {
 426                 if (cmd == sdvo_cmd_names[i].cmd) {
 427                         BUF_PRINT("(%s)", sdvo_cmd_names[i].name);
 428                         break;
 429                 }
 430         }
 431         if (i == ARRAY_SIZE(sdvo_cmd_names)) {
 432                 BUF_PRINT("(%02X)", cmd);
 433         }
 434         BUG_ON(pos >= BUF_LEN - 1);
 435 #undef BUF_PRINT
 436 #undef BUF_LEN
 437
 438         DRM_DEBUG_KMS("%s: W: %02X %s\n", SDVO_NAME(intel_sdvo), cmd, buffer);
 439 }
 440
 441 static const char * const cmd_status_names[] = {
 442         "Power on",
 443         "Success",
 444         "Not supported",
 445         "Invalid arg",
 446         "Pending",
 447         "Target not specified",
 448         "Scaling not supported"
 449 };
 450
 451 static bool __intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
 452                                    const void *args, int args_len,
 453                                    bool unlocked)
 454 {
 455         u8 *buf, status;
 456         struct i2c_msg *msgs;
 457         int i, ret = true;
 458
 459         /* Would be simpler to allocate both in one go ? */
 460         buf = kzalloc(args_len * 2 + 2, GFP_KERNEL);
 461         if (!buf)
 462                 return false;
 463
 464         msgs = kcalloc(args_len + 3, sizeof(*msgs), GFP_KERNEL);
 465         if (!msgs) {
 466                 kfree(buf);
 467                 return false;
 468         }
 469
 470         intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
 471
 472         for (i = 0; i < args_len; i++) {
 473                 msgs[i].addr = intel_sdvo->slave_addr;
 474                 msgs[i].flags = 0;
 475                 msgs[i].len = 2;
 476                 msgs[i].buf = buf + 2 *i;
 477                 buf[2*i + 0] = SDVO_I2C_ARG_0 - i;
 478                 buf[2*i + 1] = ((u8*)args)[i];
 479         }
 480         msgs[i].addr = intel_sdvo->slave_addr;
 481         msgs[i].flags = 0;
 482         msgs[i].len = 2;
 483         msgs[i].buf = buf + 2*i;
 484         buf[2*i + 0] = SDVO_I2C_OPCODE;
 485         buf[2*i + 1] = cmd;
 486
 487         /* the following two are to read the response */
 488         status = SDVO_I2C_CMD_STATUS;
 489         msgs[i+1].addr = intel_sdvo->slave_addr;
 490         msgs[i+1].flags = 0;
 491         msgs[i+1].len = 1;
 492         msgs[i+1].buf = &status;
 493
 494         msgs[i+2].addr = intel_sdvo->slave_addr;
 495         msgs[i+2].flags = I2C_M_RD;
 496         msgs[i+2].len = 1;
 497         msgs[i+2].buf = &status;
 498
 499         if (unlocked)
 500                 ret = i2c_transfer(intel_sdvo->i2c, msgs, i+3);
 501         else
 502                 ret = __i2c_transfer(intel_sdvo->i2c, msgs, i+3);
 503         if (ret < 0) {
 504                 DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
 505                 ret = false;
 506                 goto out;
 507         }
 508         if (ret != i+3) {
 509                 /* failure in I2C transfer */
 510                 DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3);
 511                 ret = false;
 512         }
 513
 514 out:
 515         kfree(msgs);
 516         kfree(buf);
 517         return ret;
 518 }
 519
 520 static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
 521                                  const void *args, int args_len)
 522 {
 523         return __intel_sdvo_write_cmd(intel_sdvo, cmd, args, args_len, true);
 524 }
 525
 526 static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
 527                                      void *response, int response_len)
 528 {
 529         u8 retry = 15; /* 5 quick checks, followed by 10 long checks */
 530         u8 status;
 531         int i, pos = 0;
 532 #define BUF_LEN 256
 533         char buffer[BUF_LEN];
 534
 535
 536         /*
 537          * The documentation states that all commands will be
 538          * processed within 15µs, and that we need only poll
 539          * the status byte a maximum of 3 times in order for the
 540          * command to be complete.
 541          *
 542          * Check 5 times in case the hardware failed to read the docs.
 543          *
 544          * Also beware that the first response by many devices is to
 545          * reply PENDING and stall for time. TVs are notorious for
 546          * requiring longer than specified to complete their replies.
 547          * Originally (in the DDX long ago), the delay was only ever 15ms
 548          * with an additional delay of 30ms applied for TVs added later after
 549          * many experiments. To accommodate both sets of delays, we do a
 550          * sequence of slow checks if the device is falling behind and fails
 551          * to reply within 5*15µs.
 552          */
 553         if (!intel_sdvo_read_byte(intel_sdvo,
 554                                   SDVO_I2C_CMD_STATUS,
 555                                   &status))
 556                 goto log_fail;
 557
 558         while ((status == SDVO_CMD_STATUS_PENDING ||
 559                 status == SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED) && --retry) {
 560                 if (retry < 10)
 561                         msleep(15);
 562                 else
 563                         udelay(15);
 564
 565                 if (!intel_sdvo_read_byte(intel_sdvo,
 566                                           SDVO_I2C_CMD_STATUS,
 567                                           &status))
 568                         goto log_fail;
 569         }
 570
 571 #define BUF_PRINT(args...) \
 572         pos += snprintf(buffer + pos, max_t(int, BUF_LEN - pos, 0), args)
 573
 574         if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
 575                 BUF_PRINT("(%s)", cmd_status_names[status]);
 576         else
 577                 BUF_PRINT("(??? %d)", status);
 578
 579         if (status != SDVO_CMD_STATUS_SUCCESS)
 580                 goto log_fail;
 581
 582         /* Read the command response */
 583         for (i = 0; i < response_len; i++) {
 584                 if (!intel_sdvo_read_byte(intel_sdvo,
 585                                           SDVO_I2C_RETURN_0 + i,
 586                                           &((u8 *)response)[i]))
 587                         goto log_fail;
 588                 BUF_PRINT(" %02X", ((u8 *)response)[i]);
 589         }
 590         BUG_ON(pos >= BUF_LEN - 1);
 591 #undef BUF_PRINT
 592 #undef BUF_LEN
 593
 594         DRM_DEBUG_KMS("%s: R: %s\n", SDVO_NAME(intel_sdvo), buffer);
 595         return true;
 596
 597 log_fail:
 598         DRM_DEBUG_KMS("%s: R: ... failed\n", SDVO_NAME(intel_sdvo));
 599         return false;
 600 }
 601
 602 static int intel_sdvo_get_pixel_multiplier(const struct drm_display_mode *adjusted_mode)
 603 {
 604         if (adjusted_mode->crtc_clock >= 100000)
 605                 return 1;
 606         else if (adjusted_mode->crtc_clock >= 50000)
 607                 return 2;
 608         else
 609                 return 4;
 610 }
 611
 612 static bool __intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo,
 613                                                 u8 ddc_bus)
 614 {
 615         /* This must be the immediately preceding write before the i2c xfer */
 616         return __intel_sdvo_write_cmd(intel_sdvo,
 617                                       SDVO_CMD_SET_CONTROL_BUS_SWITCH,
 618                                       &ddc_bus, 1, false);
 619 }
 620
 621 static bool intel_sdvo_set_value(struct intel_sdvo *intel_sdvo, u8 cmd, const void *data, int len)
 622 {
 623         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, data, len))
 624                 return false;
 625
 626         return intel_sdvo_read_response(intel_sdvo, NULL, 0);
 627 }
 628
 629 static bool
 630 intel_sdvo_get_value(struct intel_sdvo *intel_sdvo, u8 cmd, void *value, int len)
 631 {
 632         if (!intel_sdvo_write_cmd(intel_sdvo, cmd, NULL, 0))
 633                 return false;
 634
 635         return intel_sdvo_read_response(intel_sdvo, value, len);
 636 }
 637
 638 static bool intel_sdvo_set_target_input(struct intel_sdvo *intel_sdvo)
 639 {
 640         struct intel_sdvo_set_target_input_args targets = {0};
 641         return intel_sdvo_set_value(intel_sdvo,
 642                                     SDVO_CMD_SET_TARGET_INPUT,
 643                                     &targets, sizeof(targets));
 644 }
 645
 646 /**
 647  * Return whether each input is trained.
 648  *
 649  * This function is making an assumption about the layout of the response,
 650  * which should be checked against the docs.
 651  */
 652 static bool intel_sdvo_get_trained_inputs(struct intel_sdvo *intel_sdvo, bool *input_1, bool *input_2)
 653 {
 654         struct intel_sdvo_get_trained_inputs_response response;
 655
 656         BUILD_BUG_ON(sizeof(response) != 1);
 657         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_TRAINED_INPUTS,
 658                                   &response, sizeof(response)))
 659                 return false;
 660
 661         *input_1 = response.input0_trained;
 662         *input_2 = response.input1_trained;
 663         return true;
 664 }
 665
 666 static bool intel_sdvo_set_active_outputs(struct intel_sdvo *intel_sdvo,
 667                                           u16 outputs)
 668 {
 669         return intel_sdvo_set_value(intel_sdvo,
 670                                     SDVO_CMD_SET_ACTIVE_OUTPUTS,
 671                                     &outputs, sizeof(outputs));
 672 }
 673
 674 static bool intel_sdvo_get_active_outputs(struct intel_sdvo *intel_sdvo,
 675                                           u16 *outputs)
 676 {
 677         return intel_sdvo_get_value(intel_sdvo,
 678                                     SDVO_CMD_GET_ACTIVE_OUTPUTS,
 679                                     outputs, sizeof(*outputs));
 680 }
 681
 682 static bool intel_sdvo_set_encoder_power_state(struct intel_sdvo *intel_sdvo,
 683                                                int mode)
 684 {
 685         u8 state = SDVO_ENCODER_STATE_ON;
 686
 687         switch (mode) {
 688         case DRM_MODE_DPMS_ON:
 689                 state = SDVO_ENCODER_STATE_ON;
 690                 break;
 691         case DRM_MODE_DPMS_STANDBY:
 692                 state = SDVO_ENCODER_STATE_STANDBY;
 693                 break;
 694         case DRM_MODE_DPMS_SUSPEND:
 695                 state = SDVO_ENCODER_STATE_SUSPEND;
 696                 break;
 697         case DRM_MODE_DPMS_OFF:
 698                 state = SDVO_ENCODER_STATE_OFF;
 699                 break;
 700         }
 701
 702         return intel_sdvo_set_value(intel_sdvo,
 703                                     SDVO_CMD_SET_ENCODER_POWER_STATE, &state, sizeof(state));
 704 }
 705
 706 static bool intel_sdvo_get_input_pixel_clock_range(struct intel_sdvo *intel_sdvo,
 707                                                    int *clock_min,
 708                                                    int *clock_max)
 709 {
 710         struct intel_sdvo_pixel_clock_range clocks;
 711
 712         BUILD_BUG_ON(sizeof(clocks) != 4);
 713         if (!intel_sdvo_get_value(intel_sdvo,
 714                                   SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
 715                                   &clocks, sizeof(clocks)))
 716                 return false;
 717
 718         /* Convert the values from units of 10 kHz to kHz. */
 719         *clock_min = clocks.min * 10;
 720         *clock_max = clocks.max * 10;
 721         return true;
 722 }
 723
 724 static bool intel_sdvo_set_target_output(struct intel_sdvo *intel_sdvo,
 725                                          u16 outputs)
 726 {
 727         return intel_sdvo_set_value(intel_sdvo,
 728                                     SDVO_CMD_SET_TARGET_OUTPUT,
 729                                     &outputs, sizeof(outputs));
 730 }
 731
 732 static bool intel_sdvo_set_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 733                                   struct intel_sdvo_dtd *dtd)
 734 {
 735         return intel_sdvo_set_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 736                 intel_sdvo_set_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 737 }
 738
 739 static bool intel_sdvo_get_timing(struct intel_sdvo *intel_sdvo, u8 cmd,
 740                                   struct intel_sdvo_dtd *dtd)
 741 {
 742         return intel_sdvo_get_value(intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
 743                 intel_sdvo_get_value(intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
 744 }
 745
 746 static bool intel_sdvo_set_input_timing(struct intel_sdvo *intel_sdvo,
 747                                          struct intel_sdvo_dtd *dtd)
 748 {
 749         return intel_sdvo_set_timing(intel_sdvo,
 750                                      SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd);
 751 }
 752
 753 static bool intel_sdvo_set_output_timing(struct intel_sdvo *intel_sdvo,
 754                                          struct intel_sdvo_dtd *dtd)
 755 {
 756         return intel_sdvo_set_timing(intel_sdvo,
 757                                      SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd);
 758 }
 759
 760 static bool intel_sdvo_get_input_timing(struct intel_sdvo *intel_sdvo,
 761                                         struct intel_sdvo_dtd *dtd)
 762 {
 763         return intel_sdvo_get_timing(intel_sdvo,
 764                                      SDVO_CMD_GET_INPUT_TIMINGS_PART1, dtd);
 765 }
 766
 767 static bool
 768 intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 769                                          uint16_t clock,
 770                                          uint16_t width,
 771                                          uint16_t height)
 772 {
 773         struct intel_sdvo_preferred_input_timing_args args;
 774
 775         memset(&args, 0, sizeof(args));
 776         args.clock = clock;
 777         args.width = width;
 778         args.height = height;
 779         args.interlace = 0;
 780
 781         if (intel_sdvo->is_lvds &&
 782            (intel_sdvo->sdvo_lvds_fixed_mode->hdisplay != width ||
 783             intel_sdvo->sdvo_lvds_fixed_mode->vdisplay != height))
 784                 args.scaled = 1;
 785
 786         return intel_sdvo_set_value(intel_sdvo,
 787                                     SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
 788                                     &args, sizeof(args));
 789 }
 790
 791 static bool intel_sdvo_get_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 792                                                   struct intel_sdvo_dtd *dtd)
 793 {
 794         BUILD_BUG_ON(sizeof(dtd->part1) != 8);
 795         BUILD_BUG_ON(sizeof(dtd->part2) != 8);
 796         return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
 797                                     &dtd->part1, sizeof(dtd->part1)) &&
 798                 intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
 799                                      &dtd->part2, sizeof(dtd->part2));
 800 }
 801
 802 static bool intel_sdvo_set_clock_rate_mult(struct intel_sdvo *intel_sdvo, u8 val)
 803 {
 804         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
 805 }
 806
 807 static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
 808                                          const struct drm_display_mode *mode)
 809 {
 810         uint16_t width, height;
 811         uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len;
 812         uint16_t h_sync_offset, v_sync_offset;
 813         int mode_clock;
 814
 815         memset(dtd, 0, sizeof(*dtd));
 816
 817         width = mode->hdisplay;
 818         height = mode->vdisplay;
 819
 820         /* do some mode translations */
 821         h_blank_len = mode->htotal - mode->hdisplay;
 822         h_sync_len = mode->hsync_end - mode->hsync_start;
 823
 824         v_blank_len = mode->vtotal - mode->vdisplay;
 825         v_sync_len = mode->vsync_end - mode->vsync_start;
 826
 827         h_sync_offset = mode->hsync_start - mode->hdisplay;
 828         v_sync_offset = mode->vsync_start - mode->vdisplay;
 829
 830         mode_clock = mode->clock;
 831         mode_clock /= 10;
 832         dtd->part1.clock = mode_clock;
 833
 834         dtd->part1.h_active = width & 0xff;
 835         dtd->part1.h_blank = h_blank_len & 0xff;
 836         dtd->part1.h_high = (((width >> 8) & 0xf) << 4) |
 837                 ((h_blank_len >> 8) & 0xf);
 838         dtd->part1.v_active = height & 0xff;
 839         dtd->part1.v_blank = v_blank_len & 0xff;
 840         dtd->part1.v_high = (((height >> 8) & 0xf) << 4) |
 841                 ((v_blank_len >> 8) & 0xf);
 842
 843         dtd->part2.h_sync_off = h_sync_offset & 0xff;
 844         dtd->part2.h_sync_width = h_sync_len & 0xff;
 845         dtd->part2.v_sync_off_width = (v_sync_offset & 0xf) << 4 |
 846                 (v_sync_len & 0xf);
 847         dtd->part2.sync_off_width_high = ((h_sync_offset & 0x300) >> 2) |
 848                 ((h_sync_len & 0x300) >> 4) | ((v_sync_offset & 0x30) >> 2) |
 849                 ((v_sync_len & 0x30) >> 4);
 850
 851         dtd->part2.dtd_flags = 0x18;
 852         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 853                 dtd->part2.dtd_flags |= DTD_FLAG_INTERLACE;
 854         if (mode->flags & DRM_MODE_FLAG_PHSYNC)
 855                 dtd->part2.dtd_flags |= DTD_FLAG_HSYNC_POSITIVE;
 856         if (mode->flags & DRM_MODE_FLAG_PVSYNC)
 857                 dtd->part2.dtd_flags |= DTD_FLAG_VSYNC_POSITIVE;
 858
 859         dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
 860 }
 861
 862 static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode *pmode,
 863                                          const struct intel_sdvo_dtd *dtd)
 864 {
 865         struct drm_display_mode mode = {};
 866
 867         mode.hdisplay = dtd->part1.h_active;
 868         mode.hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
 869         mode.hsync_start = mode.hdisplay + dtd->part2.h_sync_off;
 870         mode.hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
 871         mode.hsync_end = mode.hsync_start + dtd->part2.h_sync_width;
 872         mode.hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
 873         mode.htotal = mode.hdisplay + dtd->part1.h_blank;
 874         mode.htotal += (dtd->part1.h_high & 0xf) << 8;
 875
 876         mode.vdisplay = dtd->part1.v_active;
 877         mode.vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
 878         mode.vsync_start = mode.vdisplay;
 879         mode.vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
 880         mode.vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
 881         mode.vsync_start += dtd->part2.v_sync_off_high & 0xc0;
 882         mode.vsync_end = mode.vsync_start +
 883                 (dtd->part2.v_sync_off_width & 0xf);
 884         mode.vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
 885         mode.vtotal = mode.vdisplay + dtd->part1.v_blank;
 886         mode.vtotal += (dtd->part1.v_high & 0xf) << 8;
 887
 888         mode.clock = dtd->part1.clock * 10;
 889
 890         if (dtd->part2.dtd_flags & DTD_FLAG_INTERLACE)
 891                 mode.flags |= DRM_MODE_FLAG_INTERLACE;
 892         if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
 893                 mode.flags |= DRM_MODE_FLAG_PHSYNC;
 894         else
 895                 mode.flags |= DRM_MODE_FLAG_NHSYNC;
 896         if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
 897                 mode.flags |= DRM_MODE_FLAG_PVSYNC;
 898         else
 899                 mode.flags |= DRM_MODE_FLAG_NVSYNC;
 900
 901         drm_mode_set_crtcinfo(&mode, 0);
 902
 903         drm_mode_copy(pmode, &mode);
 904 }
 905
 906 static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo)
 907 {
 908         struct intel_sdvo_encode encode;
 909
 910         BUILD_BUG_ON(sizeof(encode) != 2);
 911         return intel_sdvo_get_value(intel_sdvo,
 912                                   SDVO_CMD_GET_SUPP_ENCODE,
 913                                   &encode, sizeof(encode));
 914 }
 915
 916 static bool intel_sdvo_set_encode(struct intel_sdvo *intel_sdvo,
 917                                   uint8_t mode)
 918 {
 919         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_ENCODE, &mode, 1);
 920 }
 921
 922 static bool intel_sdvo_set_colorimetry(struct intel_sdvo *intel_sdvo,
 923                                        uint8_t mode)
 924 {
 925         return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
 926 }
 927
 928 #if 0
 929 static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
 930 {
 931         int i, j;
 932         uint8_t set_buf_index[2];
 933         uint8_t av_split;
 934         uint8_t buf_size;
 935         uint8_t buf[48];
 936         uint8_t *pos;
 937
 938         intel_sdvo_get_value(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, &av_split, 1);
 939
 940         for (i = 0; i <= av_split; i++) {
 941                 set_buf_index[0] = i; set_buf_index[1] = 0;
 942                 intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX,
 943                                      set_buf_index, 2);
 944                 intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
 945                 intel_sdvo_read_response(encoder, &buf_size, 1);
 946
 947                 pos = buf;
 948                 for (j = 0; j <= buf_size; j += 8) {
 949                         intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA,
 950                                              NULL, 0);
 951                         intel_sdvo_read_response(encoder, pos, 8);
 952                         pos += 8;
 953                 }
 954         }
 955 }
 956 #endif
 957
 958 static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo,
 959                                        unsigned if_index, uint8_t tx_rate,
 960                                        const uint8_t *data, unsigned length)
 961 {
 962         uint8_t set_buf_index[2] = { if_index, 0 };
 963         uint8_t hbuf_size, tmp[8];
 964         int i;
 965
 966         if (!intel_sdvo_set_value(intel_sdvo,
 967                                   SDVO_CMD_SET_HBUF_INDEX,
 968                                   set_buf_index, 2))
 969                 return false;
 970
 971         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HBUF_INFO,
 972                                   &hbuf_size, 1))
 973                 return false;
 974
 975         /* Buffer size is 0 based, hooray! */
 976         hbuf_size++;
 977
 978         DRM_DEBUG_KMS("writing sdvo hbuf: %i, hbuf_size %i, hbuf_size: %i\n",
 979                       if_index, length, hbuf_size);
 980
 981         for (i = 0; i < hbuf_size; i += 8) {
 982                 memset(tmp, 0, 8);
 983                 if (i < length)
 984                         memcpy(tmp, data + i, min_t(unsigned, 8, length - i));
 985
 986                 if (!intel_sdvo_set_value(intel_sdvo,
 987                                           SDVO_CMD_SET_HBUF_DATA,
 988                                           tmp, 8))
 989                         return false;
 990         }
 991
 992         return intel_sdvo_set_value(intel_sdvo,
 993                                     SDVO_CMD_SET_HBUF_TXRATE,
 994                                     &tx_rate, 1);
 995 }
 996
 997 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
 998                                          const struct intel_crtc_state *pipe_config)
 999 {
1000         uint8_t sdvo_data[HDMI_INFOFRAME_SIZE(AVI)];
1001         union hdmi_infoframe frame;
1002         int ret;
1003         ssize_t len;
1004
1005         ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
1006                                                        &pipe_config->base.adjusted_mode,
1007                                                        false);
1008         if (ret < 0) {
1009                 DRM_ERROR("couldn't fill AVI infoframe\n");
1010                 return false;
1011         }
1012
1013         if (intel_sdvo->rgb_quant_range_selectable) {
1014                 if (pipe_config->limited_color_range)
1015                         frame.avi.quantization_range =
1016                                 HDMI_QUANTIZATION_RANGE_LIMITED;
1017                 else
1018                         frame.avi.quantization_range =
1019                                 HDMI_QUANTIZATION_RANGE_FULL;
1020         }
1021
1022         len = hdmi_infoframe_pack(&frame, sdvo_data, sizeof(sdvo_data));
1023         if (len < 0)
1024                 return false;
1025
1026         return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF,
1027                                           SDVO_HBUF_TX_VSYNC,
1028                                           sdvo_data, sizeof(sdvo_data));
1029 }
1030
1031 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo,
1032                                      const struct drm_connector_state *conn_state)
1033 {
1034         struct intel_sdvo_tv_format format;
1035         uint32_t format_map;
1036
1037         format_map = 1 << conn_state->tv.mode;
1038         memset(&format, 0, sizeof(format));
1039         memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map)));
1040
1041         BUILD_BUG_ON(sizeof(format) != 6);
1042         return intel_sdvo_set_value(intel_sdvo,
1043                                     SDVO_CMD_SET_TV_FORMAT,
1044                                     &format, sizeof(format));
1045 }
1046
1047 static bool
1048 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
1049                                         const struct drm_display_mode *mode)
1050 {
1051         struct intel_sdvo_dtd output_dtd;
1052
1053         if (!intel_sdvo_set_target_output(intel_sdvo,
1054                                           intel_sdvo->attached_output))
1055                 return false;
1056
1057         intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1058         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1059                 return false;
1060
1061         return true;
1062 }
1063
1064 /* Asks the sdvo controller for the preferred input mode given the output mode.
1065  * Unfortunately we have to set up the full output mode to do that. */
1066 static bool
1067 intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
1068                                     const struct drm_display_mode *mode,
1069                                     struct drm_display_mode *adjusted_mode)
1070 {
1071         struct intel_sdvo_dtd input_dtd;
1072
1073         /* Reset the input timing to the screen. Assume always input 0. */
1074         if (!intel_sdvo_set_target_input(intel_sdvo))
1075                 return false;
1076
1077         if (!intel_sdvo_create_preferred_input_timing(intel_sdvo,
1078                                                       mode->clock / 10,
1079                                                       mode->hdisplay,
1080                                                       mode->vdisplay))
1081                 return false;
1082
1083         if (!intel_sdvo_get_preferred_input_timing(intel_sdvo,
1084                                                    &input_dtd))
1085                 return false;
1086
1087         intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd);
1088         intel_sdvo->dtd_sdvo_flags = input_dtd.part2.sdvo_flags;
1089
1090         return true;
1091 }
1092
1093 static void i9xx_adjust_sdvo_tv_clock(struct intel_crtc_state *pipe_config)
1094 {
1095         unsigned dotclock = pipe_config->port_clock;
1096         struct dpll *clock = &pipe_config->dpll;
1097
1098         /* SDVO TV has fixed PLL values depend on its clock range,
1099            this mirrors vbios setting. */
1100         if (dotclock >= 100000 && dotclock < 140500) {
1101                 clock->p1 = 2;
1102                 clock->p2 = 10;
1103                 clock->n = 3;
1104                 clock->m1 = 16;
1105                 clock->m2 = 8;
1106         } else if (dotclock >= 140500 && dotclock <= 200000) {
1107                 clock->p1 = 1;
1108                 clock->p2 = 10;
1109                 clock->n = 6;
1110                 clock->m1 = 12;
1111                 clock->m2 = 8;
1112         } else {
1113                 WARN(1, "SDVO TV clock out of range: %i\n", dotclock);
1114         }
1115
1116         pipe_config->clock_set = true;
1117 }
1118
1119 static bool intel_sdvo_compute_config(struct intel_encoder *encoder,
1120                                       struct intel_crtc_state *pipe_config,
1121                                       struct drm_connector_state *conn_state)
1122 {
1123         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1124         struct intel_sdvo_connector_state *intel_sdvo_state =
1125                 to_intel_sdvo_connector_state(conn_state);
1126         struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
1127         struct drm_display_mode *mode = &pipe_config->base.mode;
1128
1129         DRM_DEBUG_KMS("forcing bpc to 8 for SDVO\n");
1130         pipe_config->pipe_bpp = 8*3;
1131
1132         if (HAS_PCH_SPLIT(to_i915(encoder->base.dev)))
1133                 pipe_config->has_pch_encoder = true;
1134
1135         /* We need to construct preferred input timings based on our
1136          * output timings.  To do that, we have to set the output
1137          * timings, even though this isn't really the right place in
1138          * the sequence to do it. Oh well.
1139          */
1140         if (intel_sdvo->is_tv) {
1141                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
1142                         return false;
1143
1144                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1145                                                            mode,
1146                                                            adjusted_mode);
1147                 pipe_config->sdvo_tv_clock = true;
1148         } else if (intel_sdvo->is_lvds) {
1149                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
1150                                                              intel_sdvo->sdvo_lvds_fixed_mode))
1151                         return false;
1152
1153                 (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
1154                                                            mode,
1155                                                            adjusted_mode);
1156         }
1157
1158         /* Make the CRTC code factor in the SDVO pixel multiplier.  The
1159          * SDVO device will factor out the multiplier during mode_set.
1160          */
1161         pipe_config->pixel_multiplier =
1162                 intel_sdvo_get_pixel_multiplier(adjusted_mode);
1163
1164         if (intel_sdvo_state->base.force_audio != HDMI_AUDIO_OFF_DVI)
1165                 pipe_config->has_hdmi_sink = intel_sdvo->has_hdmi_monitor;
1166
1167         if (intel_sdvo_state->base.force_audio == HDMI_AUDIO_ON ||
1168             (intel_sdvo_state->base.force_audio == HDMI_AUDIO_AUTO && intel_sdvo->has_hdmi_audio))
1169                 pipe_config->has_audio = true;
1170
1171         if (intel_sdvo_state->base.broadcast_rgb == INTEL_BROADCAST_RGB_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_state->base.broadcast_rgb == INTEL_BROADCAST_RGB_LIMITED)
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 = conn_state->picture_aspect_ratio;
1191
1192         return true;
1193 }
1194
1195 #define UPDATE_PROPERTY(input, NAME) \
1196         do { \
1197                 val = input; \
1198                 intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_##NAME, &val, sizeof(val)); \
1199         } while (0)
1200
1201 static void intel_sdvo_update_props(struct intel_sdvo *intel_sdvo,
1202                                     const struct intel_sdvo_connector_state *sdvo_state)
1203 {
1204         const struct drm_connector_state *conn_state = &sdvo_state->base.base;
1205         struct intel_sdvo_connector *intel_sdvo_conn =
1206                 to_intel_sdvo_connector(conn_state->connector);
1207         uint16_t val;
1208
1209         if (intel_sdvo_conn->left)
1210                 UPDATE_PROPERTY(sdvo_state->tv.overscan_h, OVERSCAN_H);
1211
1212         if (intel_sdvo_conn->top)
1213                 UPDATE_PROPERTY(sdvo_state->tv.overscan_v, OVERSCAN_V);
1214
1215         if (intel_sdvo_conn->hpos)
1216                 UPDATE_PROPERTY(sdvo_state->tv.hpos, HPOS);
1217
1218         if (intel_sdvo_conn->vpos)
1219                 UPDATE_PROPERTY(sdvo_state->tv.vpos, VPOS);
1220
1221         if (intel_sdvo_conn->saturation)
1222                 UPDATE_PROPERTY(conn_state->tv.saturation, SATURATION);
1223
1224         if (intel_sdvo_conn->contrast)
1225                 UPDATE_PROPERTY(conn_state->tv.contrast, CONTRAST);
1226
1227         if (intel_sdvo_conn->hue)
1228                 UPDATE_PROPERTY(conn_state->tv.hue, HUE);
1229
1230         if (intel_sdvo_conn->brightness)
1231                 UPDATE_PROPERTY(conn_state->tv.brightness, BRIGHTNESS);
1232
1233         if (intel_sdvo_conn->sharpness)
1234                 UPDATE_PROPERTY(sdvo_state->tv.sharpness, SHARPNESS);
1235
1236         if (intel_sdvo_conn->flicker_filter)
1237                 UPDATE_PROPERTY(sdvo_state->tv.flicker_filter, FLICKER_FILTER);
1238
1239         if (intel_sdvo_conn->flicker_filter_2d)
1240                 UPDATE_PROPERTY(sdvo_state->tv.flicker_filter_2d, FLICKER_FILTER_2D);
1241
1242         if (intel_sdvo_conn->flicker_filter_adaptive)
1243                 UPDATE_PROPERTY(sdvo_state->tv.flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
1244
1245         if (intel_sdvo_conn->tv_chroma_filter)
1246                 UPDATE_PROPERTY(sdvo_state->tv.chroma_filter, TV_CHROMA_FILTER);
1247
1248         if (intel_sdvo_conn->tv_luma_filter)
1249                 UPDATE_PROPERTY(sdvo_state->tv.luma_filter, TV_LUMA_FILTER);
1250
1251         if (intel_sdvo_conn->dot_crawl)
1252                 UPDATE_PROPERTY(sdvo_state->tv.dot_crawl, DOT_CRAWL);
1253
1254 #undef UPDATE_PROPERTY
1255 }
1256
1257 static void intel_sdvo_pre_enable(struct intel_encoder *intel_encoder,
1258                                   const struct intel_crtc_state *crtc_state,
1259                                   const struct drm_connector_state *conn_state)
1260 {
1261         struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev);
1262         struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
1263         const struct drm_display_mode *adjusted_mode = &crtc_state->base.adjusted_mode;
1264         const struct intel_sdvo_connector_state *sdvo_state =
1265                 to_intel_sdvo_connector_state(conn_state);
1266         const struct drm_display_mode *mode = &crtc_state->base.mode;
1267         struct intel_sdvo *intel_sdvo = to_sdvo(intel_encoder);
1268         u32 sdvox;
1269         struct intel_sdvo_in_out_map in_out;
1270         struct intel_sdvo_dtd input_dtd, output_dtd;
1271         int rate;
1272
1273         intel_sdvo_update_props(intel_sdvo, sdvo_state);
1274
1275         /* First, set the input mapping for the first input to our controlled
1276          * output. This is only correct if we're a single-input device, in
1277          * which case the first input is the output from the appropriate SDVO
1278          * channel on the motherboard.  In a two-input device, the first input
1279          * will be SDVOB and the second SDVOC.
1280          */
1281         in_out.in0 = intel_sdvo->attached_output;
1282         in_out.in1 = 0;
1283
1284         intel_sdvo_set_value(intel_sdvo,
1285                              SDVO_CMD_SET_IN_OUT_MAP,
1286                              &in_out, sizeof(in_out));
1287
1288         /* Set the output timings to the screen */
1289         if (!intel_sdvo_set_target_output(intel_sdvo,
1290                                           intel_sdvo->attached_output))
1291                 return;
1292
1293         /* lvds has a special fixed output timing. */
1294         if (intel_sdvo->is_lvds)
1295                 intel_sdvo_get_dtd_from_mode(&output_dtd,
1296                                              intel_sdvo->sdvo_lvds_fixed_mode);
1297         else
1298                 intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
1299         if (!intel_sdvo_set_output_timing(intel_sdvo, &output_dtd))
1300                 DRM_INFO("Setting output timings on %s failed\n",
1301                          SDVO_NAME(intel_sdvo));
1302
1303         /* Set the input timing to the screen. Assume always input 0. */
1304         if (!intel_sdvo_set_target_input(intel_sdvo))
1305                 return;
1306
1307         if (crtc_state->has_hdmi_sink) {
1308                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI);
1309                 intel_sdvo_set_colorimetry(intel_sdvo,
1310                                            SDVO_COLORIMETRY_RGB256);
1311                 intel_sdvo_set_avi_infoframe(intel_sdvo, crtc_state);
1312         } else
1313                 intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);
1314
1315         if (intel_sdvo->is_tv &&
1316             !intel_sdvo_set_tv_format(intel_sdvo, conn_state))
1317                 return;
1318
1319         intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
1320
1321         if (intel_sdvo->is_tv || intel_sdvo->is_lvds)
1322                 input_dtd.part2.sdvo_flags = intel_sdvo->dtd_sdvo_flags;
1323         if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd))
1324                 DRM_INFO("Setting input timings on %s failed\n",
1325                          SDVO_NAME(intel_sdvo));
1326
1327         switch (crtc_state->pixel_multiplier) {
1328         default:
1329                 WARN(1, "unknown pixel multiplier specified\n");
1330         case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break;
1331         case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break;
1332         case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break;
1333         }
1334         if (!intel_sdvo_set_clock_rate_mult(intel_sdvo, rate))
1335                 return;
1336
1337         /* Set the SDVO control regs. */
1338         if (INTEL_GEN(dev_priv) >= 4) {
1339                 /* The real mode polarity is set by the SDVO commands, using
1340                  * struct intel_sdvo_dtd. */
1341                 sdvox = SDVO_VSYNC_ACTIVE_HIGH | SDVO_HSYNC_ACTIVE_HIGH;
1342                 if (!HAS_PCH_SPLIT(dev_priv) && crtc_state->limited_color_range)
1343                         sdvox |= HDMI_COLOR_RANGE_16_235;
1344                 if (INTEL_GEN(dev_priv) < 5)
1345                         sdvox |= SDVO_BORDER_ENABLE;
1346         } else {
1347                 sdvox = I915_READ(intel_sdvo->sdvo_reg);
1348                 if (intel_sdvo->port == PORT_B)
1349                         sdvox &= SDVOB_PRESERVE_MASK;
1350                 else
1351                         sdvox &= SDVOC_PRESERVE_MASK;
1352                 sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
1353         }
1354
1355         if (HAS_PCH_CPT(dev_priv))
1356                 sdvox |= SDVO_PIPE_SEL_CPT(crtc->pipe);
1357         else
1358                 sdvox |= SDVO_PIPE_SEL(crtc->pipe);
1359
1360         if (crtc_state->has_audio) {
1361                 WARN_ON_ONCE(INTEL_GEN(dev_priv) < 4);
1362                 sdvox |= SDVO_AUDIO_ENABLE;
1363         }
1364
1365         if (INTEL_GEN(dev_priv) >= 4) {
1366                 /* done in crtc_mode_set as the dpll_md reg must be written early */
1367         } else if (IS_I945G(dev_priv) || IS_I945GM(dev_priv) ||
1368                    IS_G33(dev_priv) || IS_PINEVIEW(dev_priv)) {
1369                 /* done in crtc_mode_set as it lives inside the dpll register */
1370         } else {
1371                 sdvox |= (crtc_state->pixel_multiplier - 1)
1372                         << SDVO_PORT_MULTIPLY_SHIFT;
1373         }
1374
1375         if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL &&
1376             INTEL_GEN(dev_priv) < 5)
1377                 sdvox |= SDVO_STALL_SELECT;
1378         intel_sdvo_write_sdvox(intel_sdvo, sdvox);
1379 }
1380
1381 static bool intel_sdvo_connector_get_hw_state(struct intel_connector *connector)
1382 {
1383         struct intel_sdvo_connector *intel_sdvo_connector =
1384                 to_intel_sdvo_connector(&connector->base);
1385         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(&connector->base);
1386         u16 active_outputs = 0;
1387
1388         intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
1389
1390         if (active_outputs & intel_sdvo_connector->output_flag)
1391                 return true;
1392         else
1393                 return false;
1394 }
1395
1396 static bool intel_sdvo_get_hw_state(struct intel_encoder *encoder,
1397                                     enum pipe *pipe)
1398 {
1399         struct drm_device *dev = encoder->base.dev;
1400         struct drm_i915_private *dev_priv = to_i915(dev);
1401         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1402         u16 active_outputs = 0;
1403         u32 tmp;
1404
1405         tmp = I915_READ(intel_sdvo->sdvo_reg);
1406         intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
1407
1408         if (!(tmp & SDVO_ENABLE) && (active_outputs == 0))
1409                 return false;
1410
1411         if (HAS_PCH_CPT(dev_priv))
1412                 *pipe = PORT_TO_PIPE_CPT(tmp);
1413         else
1414                 *pipe = PORT_TO_PIPE(tmp);
1415
1416         return true;
1417 }
1418
1419 static void intel_sdvo_get_config(struct intel_encoder *encoder,
1420                                   struct intel_crtc_state *pipe_config)
1421 {
1422         struct drm_device *dev = encoder->base.dev;
1423         struct drm_i915_private *dev_priv = to_i915(dev);
1424         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1425         struct intel_sdvo_dtd dtd;
1426         int encoder_pixel_multiplier = 0;
1427         int dotclock;
1428         u32 flags = 0, sdvox;
1429         u8 val;
1430         bool ret;
1431
1432         sdvox = I915_READ(intel_sdvo->sdvo_reg);
1433
1434         ret = intel_sdvo_get_input_timing(intel_sdvo, &dtd);
1435         if (!ret) {
1436                 /* Some sdvo encoders are not spec compliant and don't
1437                  * implement the mandatory get_timings function. */
1438                 DRM_DEBUG_DRIVER("failed to retrieve SDVO DTD\n");
1439                 pipe_config->quirks |= PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS;
1440         } else {
1441                 if (dtd.part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
1442                         flags |= DRM_MODE_FLAG_PHSYNC;
1443                 else
1444                         flags |= DRM_MODE_FLAG_NHSYNC;
1445
1446                 if (dtd.part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
1447                         flags |= DRM_MODE_FLAG_PVSYNC;
1448                 else
1449                         flags |= DRM_MODE_FLAG_NVSYNC;
1450         }
1451
1452         pipe_config->base.adjusted_mode.flags |= flags;
1453
1454         /*
1455          * pixel multiplier readout is tricky: Only on i915g/gm it is stored in
1456          * the sdvo port register, on all other platforms it is part of the dpll
1457          * state. Since the general pipe state readout happens before the
1458          * encoder->get_config we so already have a valid pixel multplier on all
1459          * other platfroms.
1460          */
1461         if (IS_I915G(dev_priv) || IS_I915GM(dev_priv)) {
1462                 pipe_config->pixel_multiplier =
1463                         ((sdvox & SDVO_PORT_MULTIPLY_MASK)
1464                          >> SDVO_PORT_MULTIPLY_SHIFT) + 1;
1465         }
1466
1467         dotclock = pipe_config->port_clock;
1468
1469         if (pipe_config->pixel_multiplier)
1470                 dotclock /= pipe_config->pixel_multiplier;
1471
1472         pipe_config->base.adjusted_mode.crtc_clock = dotclock;
1473
1474         /* Cross check the port pixel multiplier with the sdvo encoder state. */
1475         if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_CLOCK_RATE_MULT,
1476                                  &val, 1)) {
1477                 switch (val) {
1478                 case SDVO_CLOCK_RATE_MULT_1X:
1479                         encoder_pixel_multiplier = 1;
1480                         break;
1481                 case SDVO_CLOCK_RATE_MULT_2X:
1482                         encoder_pixel_multiplier = 2;
1483                         break;
1484                 case SDVO_CLOCK_RATE_MULT_4X:
1485                         encoder_pixel_multiplier = 4;
1486                         break;
1487                 }
1488         }
1489
1490         if (sdvox & HDMI_COLOR_RANGE_16_235)
1491                 pipe_config->limited_color_range = true;
1492
1493         if (sdvox & SDVO_AUDIO_ENABLE)
1494                 pipe_config->has_audio = true;
1495
1496         if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ENCODE,
1497                                  &val, 1)) {
1498                 if (val == SDVO_ENCODE_HDMI)
1499                         pipe_config->has_hdmi_sink = true;
1500         }
1501
1502         WARN(encoder_pixel_multiplier != pipe_config->pixel_multiplier,
1503              "SDVO pixel multiplier mismatch, port: %i, encoder: %i\n",
1504              pipe_config->pixel_multiplier, encoder_pixel_multiplier);
1505 }
1506
1507 static void intel_disable_sdvo(struct intel_encoder *encoder,
1508                                const struct intel_crtc_state *old_crtc_state,
1509                                const struct drm_connector_state *conn_state)
1510 {
1511         struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
1512         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1513         struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);
1514         u32 temp;
1515
1516         intel_sdvo_set_active_outputs(intel_sdvo, 0);
1517         if (0)
1518                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1519                                                    DRM_MODE_DPMS_OFF);
1520
1521         temp = I915_READ(intel_sdvo->sdvo_reg);
1522
1523         temp &= ~SDVO_ENABLE;
1524         intel_sdvo_write_sdvox(intel_sdvo, temp);
1525
1526         /*
1527          * HW workaround for IBX, we need to move the port
1528          * to transcoder A after disabling it to allow the
1529          * matching DP port to be enabled on transcoder A.
1530          */
1531         if (HAS_PCH_IBX(dev_priv) && crtc->pipe == PIPE_B) {
1532                 /*
1533                  * We get CPU/PCH FIFO underruns on the other pipe when
1534                  * doing the workaround. Sweep them under the rug.
1535                  */
1536                 intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, false);
1537                 intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false);
1538
1539                 temp &= ~SDVO_PIPE_B_SELECT;
1540                 temp |= SDVO_ENABLE;
1541                 intel_sdvo_write_sdvox(intel_sdvo, temp);
1542
1543                 temp &= ~SDVO_ENABLE;
1544                 intel_sdvo_write_sdvox(intel_sdvo, temp);
1545
1546                 intel_wait_for_vblank_if_active(dev_priv, PIPE_A);
1547                 intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, true);
1548                 intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true);
1549         }
1550 }
1551
1552 static void pch_disable_sdvo(struct intel_encoder *encoder,
1553                              const struct intel_crtc_state *old_crtc_state,
1554                              const struct drm_connector_state *old_conn_state)
1555 {
1556 }
1557
1558 static void pch_post_disable_sdvo(struct intel_encoder *encoder,
1559                                   const struct intel_crtc_state *old_crtc_state,
1560                                   const struct drm_connector_state *old_conn_state)
1561 {
1562         intel_disable_sdvo(encoder, old_crtc_state, old_conn_state);
1563 }
1564
1565 static void intel_enable_sdvo(struct intel_encoder *encoder,
1566                               const struct intel_crtc_state *pipe_config,
1567                               const struct drm_connector_state *conn_state)
1568 {
1569         struct drm_device *dev = encoder->base.dev;
1570         struct drm_i915_private *dev_priv = to_i915(dev);
1571         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1572         struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
1573         u32 temp;
1574         bool input1, input2;
1575         int i;
1576         bool success;
1577
1578         temp = I915_READ(intel_sdvo->sdvo_reg);
1579         temp |= SDVO_ENABLE;
1580         intel_sdvo_write_sdvox(intel_sdvo, temp);
1581
1582         for (i = 0; i < 2; i++)
1583                 intel_wait_for_vblank(dev_priv, intel_crtc->pipe);
1584
1585         success = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2);
1586         /* Warn if the device reported failure to sync.
1587          * A lot of SDVO devices fail to notify of sync, but it's
1588          * a given it the status is a success, we succeeded.
1589          */
1590         if (success && !input1) {
1591                 DRM_DEBUG_KMS("First %s output reported failure to "
1592                                 "sync\n", SDVO_NAME(intel_sdvo));
1593         }
1594
1595         if (0)
1596                 intel_sdvo_set_encoder_power_state(intel_sdvo,
1597                                                    DRM_MODE_DPMS_ON);
1598         intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
1599 }
1600
1601 static enum drm_mode_status
1602 intel_sdvo_mode_valid(struct drm_connector *connector,
1603                       struct drm_display_mode *mode)
1604 {
1605         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1606         int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
1607
1608         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
1609                 return MODE_NO_DBLESCAN;
1610
1611         if (intel_sdvo->pixel_clock_min > mode->clock)
1612                 return MODE_CLOCK_LOW;
1613
1614         if (intel_sdvo->pixel_clock_max < mode->clock)
1615                 return MODE_CLOCK_HIGH;
1616
1617         if (mode->clock > max_dotclk)
1618                 return MODE_CLOCK_HIGH;
1619
1620         if (intel_sdvo->is_lvds) {
1621                 if (mode->hdisplay > intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
1622                         return MODE_PANEL;
1623
1624                 if (mode->vdisplay > intel_sdvo->sdvo_lvds_fixed_mode->vdisplay)
1625                         return MODE_PANEL;
1626         }
1627
1628         return MODE_OK;
1629 }
1630
1631 static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct intel_sdvo_caps *caps)
1632 {
1633         BUILD_BUG_ON(sizeof(*caps) != 8);
1634         if (!intel_sdvo_get_value(intel_sdvo,
1635                                   SDVO_CMD_GET_DEVICE_CAPS,
1636                                   caps, sizeof(*caps)))
1637                 return false;
1638
1639         DRM_DEBUG_KMS("SDVO capabilities:\n"
1640                       "  vendor_id: %d\n"
1641                       "  device_id: %d\n"
1642                       "  device_rev_id: %d\n"
1643                       "  sdvo_version_major: %d\n"
1644                       "  sdvo_version_minor: %d\n"
1645                       "  sdvo_inputs_mask: %d\n"
1646                       "  smooth_scaling: %d\n"
1647                       "  sharp_scaling: %d\n"
1648                       "  up_scaling: %d\n"
1649                       "  down_scaling: %d\n"
1650                       "  stall_support: %d\n"
1651                       "  output_flags: %d\n",
1652                       caps->vendor_id,
1653                       caps->device_id,
1654                       caps->device_rev_id,
1655                       caps->sdvo_version_major,
1656                       caps->sdvo_version_minor,
1657                       caps->sdvo_inputs_mask,
1658                       caps->smooth_scaling,
1659                       caps->sharp_scaling,
1660                       caps->up_scaling,
1661                       caps->down_scaling,
1662                       caps->stall_support,
1663                       caps->output_flags);
1664
1665         return true;
1666 }
1667
1668 static uint16_t intel_sdvo_get_hotplug_support(struct intel_sdvo *intel_sdvo)
1669 {
1670         struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev);
1671         uint16_t hotplug;
1672
1673         if (!I915_HAS_HOTPLUG(dev_priv))
1674                 return 0;
1675
1676         /* HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise
1677          * on the line. */
1678         if (IS_I945G(dev_priv) || IS_I945GM(dev_priv))
1679                 return 0;
1680
1681         if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
1682                                         &hotplug, sizeof(hotplug)))
1683                 return 0;
1684
1685         return hotplug;
1686 }
1687
1688 static void intel_sdvo_enable_hotplug(struct intel_encoder *encoder)
1689 {
1690         struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
1691
1692         intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG,
1693                         &intel_sdvo->hotplug_active, 2);
1694 }
1695
1696 static bool
1697 intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
1698 {
1699         /* Is there more than one type of output? */
1700         return hweight16(intel_sdvo->caps.output_flags) > 1;
1701 }
1702
1703 static struct edid *
1704 intel_sdvo_get_edid(struct drm_connector *connector)
1705 {
1706         struct intel_sdvo *sdvo = intel_attached_sdvo(connector);
1707         return drm_get_edid(connector, &sdvo->ddc);
1708 }
1709
1710 /* Mac mini hack -- use the same DDC as the analog connector */
1711 static struct edid *
1712 intel_sdvo_get_analog_edid(struct drm_connector *connector)
1713 {
1714         struct drm_i915_private *dev_priv = to_i915(connector->dev);
1715
1716         return drm_get_edid(connector,
1717                             intel_gmbus_get_adapter(dev_priv,
1718                                                     dev_priv->vbt.crt_ddc_pin));
1719 }
1720
1721 static enum drm_connector_status
1722 intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
1723 {
1724         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1725         enum drm_connector_status status;
1726         struct edid *edid;
1727
1728         edid = intel_sdvo_get_edid(connector);
1729
1730         if (edid == NULL && intel_sdvo_multifunc_encoder(intel_sdvo)) {
1731                 u8 ddc, saved_ddc = intel_sdvo->ddc_bus;
1732
1733                 /*
1734                  * Don't use the 1 as the argument of DDC bus switch to get
1735                  * the EDID. It is used for SDVO SPD ROM.
1736                  */
1737                 for (ddc = intel_sdvo->ddc_bus >> 1; ddc > 1; ddc >>= 1) {
1738                         intel_sdvo->ddc_bus = ddc;
1739                         edid = intel_sdvo_get_edid(connector);
1740                         if (edid)
1741                                 break;
1742                 }
1743                 /*
1744                  * If we found the EDID on the other bus,
1745                  * assume that is the correct DDC bus.
1746                  */
1747                 if (edid == NULL)
1748                         intel_sdvo->ddc_bus = saved_ddc;
1749         }
1750
1751         /*
1752          * When there is no edid and no monitor is connected with VGA
1753          * port, try to use the CRT ddc to read the EDID for DVI-connector.
1754          */
1755         if (edid == NULL)
1756                 edid = intel_sdvo_get_analog_edid(connector);
1757
1758         status = connector_status_unknown;
1759         if (edid != NULL) {
1760                 /* DDC bus is shared, match EDID to connector type */
1761                 if (edid->input & DRM_EDID_INPUT_DIGITAL) {
1762                         status = connector_status_connected;
1763                         if (intel_sdvo->is_hdmi) {
1764                                 intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
1765                                 intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
1766                                 intel_sdvo->rgb_quant_range_selectable =
1767                                         drm_rgb_quant_range_selectable(edid);
1768                         }
1769                 } else
1770                         status = connector_status_disconnected;
1771                 kfree(edid);
1772         }
1773
1774         return status;
1775 }
1776
1777 static bool
1778 intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
1779                                   struct edid *edid)
1780 {
1781         bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
1782         bool connector_is_digital = !!IS_DIGITAL(sdvo);
1783
1784         DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n",
1785                       connector_is_digital, monitor_is_digital);
1786         return connector_is_digital == monitor_is_digital;
1787 }
1788
1789 static enum drm_connector_status
1790 intel_sdvo_detect(struct drm_connector *connector, bool force)
1791 {
1792         uint16_t response;
1793         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1794         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
1795         enum drm_connector_status ret;
1796
1797         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1798                       connector->base.id, connector->name);
1799
1800         if (!intel_sdvo_get_value(intel_sdvo,
1801                                   SDVO_CMD_GET_ATTACHED_DISPLAYS,
1802                                   &response, 2))
1803                 return connector_status_unknown;
1804
1805         DRM_DEBUG_KMS("SDVO response %d %d [%x]\n",
1806                       response & 0xff, response >> 8,
1807                       intel_sdvo_connector->output_flag);
1808
1809         if (response == 0)
1810                 return connector_status_disconnected;
1811
1812         intel_sdvo->attached_output = response;
1813
1814         intel_sdvo->has_hdmi_monitor = false;
1815         intel_sdvo->has_hdmi_audio = false;
1816         intel_sdvo->rgb_quant_range_selectable = false;
1817
1818         if ((intel_sdvo_connector->output_flag & response) == 0)
1819                 ret = connector_status_disconnected;
1820         else if (IS_TMDS(intel_sdvo_connector))
1821                 ret = intel_sdvo_tmds_sink_detect(connector);
1822         else {
1823                 struct edid *edid;
1824
1825                 /* if we have an edid check it matches the connection */
1826                 edid = intel_sdvo_get_edid(connector);
1827                 if (edid == NULL)
1828                         edid = intel_sdvo_get_analog_edid(connector);
1829                 if (edid != NULL) {
1830                         if (intel_sdvo_connector_matches_edid(intel_sdvo_connector,
1831                                                               edid))
1832                                 ret = connector_status_connected;
1833                         else
1834                                 ret = connector_status_disconnected;
1835
1836                         kfree(edid);
1837                 } else
1838                         ret = connector_status_connected;
1839         }
1840
1841         /* May update encoder flag for like clock for SDVO TV, etc.*/
1842         if (ret == connector_status_connected) {
1843                 intel_sdvo->is_tv = false;
1844                 intel_sdvo->is_lvds = false;
1845
1846                 if (response & SDVO_TV_MASK)
1847                         intel_sdvo->is_tv = true;
1848                 if (response & SDVO_LVDS_MASK)
1849                         intel_sdvo->is_lvds = intel_sdvo->sdvo_lvds_fixed_mode != NULL;
1850         }
1851
1852         return ret;
1853 }
1854
1855 static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
1856 {
1857         struct edid *edid;
1858
1859         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1860                       connector->base.id, connector->name);
1861
1862         /* set the bus switch and get the modes */
1863         edid = intel_sdvo_get_edid(connector);
1864
1865         /*
1866          * Mac mini hack.  On this device, the DVI-I connector shares one DDC
1867          * link between analog and digital outputs. So, if the regular SDVO
1868          * DDC fails, check to see if the analog output is disconnected, in
1869          * which case we'll look there for the digital DDC data.
1870          */
1871         if (edid == NULL)
1872                 edid = intel_sdvo_get_analog_edid(connector);
1873
1874         if (edid != NULL) {
1875                 if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector),
1876                                                       edid)) {
1877                         drm_mode_connector_update_edid_property(connector, edid);
1878                         drm_add_edid_modes(connector, edid);
1879                 }
1880
1881                 kfree(edid);
1882         }
1883 }
1884
1885 /*
1886  * Set of SDVO TV modes.
1887  * Note!  This is in reply order (see loop in get_tv_modes).
1888  * XXX: all 60Hz refresh?
1889  */
1890 static const struct drm_display_mode sdvo_tv_modes[] = {
1891         { DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 5815, 320, 321, 384,
1892                    416, 0, 200, 201, 232, 233, 0,
1893                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1894         { DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 6814, 320, 321, 384,
1895                    416, 0, 240, 241, 272, 273, 0,
1896                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1897         { DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 9910, 400, 401, 464,
1898                    496, 0, 300, 301, 332, 333, 0,
1899                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1900         { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 16913, 640, 641, 704,
1901                    736, 0, 350, 351, 382, 383, 0,
1902                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1903         { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 19121, 640, 641, 704,
1904                    736, 0, 400, 401, 432, 433, 0,
1905                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1906         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 22654, 640, 641, 704,
1907                    736, 0, 480, 481, 512, 513, 0,
1908                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1909         { DRM_MODE("704x480", DRM_MODE_TYPE_DRIVER, 24624, 704, 705, 768,
1910                    800, 0, 480, 481, 512, 513, 0,
1911                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1912         { DRM_MODE("704x576", DRM_MODE_TYPE_DRIVER, 29232, 704, 705, 768,
1913                    800, 0, 576, 577, 608, 609, 0,
1914                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1915         { DRM_MODE("720x350", DRM_MODE_TYPE_DRIVER, 18751, 720, 721, 784,
1916                    816, 0, 350, 351, 382, 383, 0,
1917                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1918         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 21199, 720, 721, 784,
1919                    816, 0, 400, 401, 432, 433, 0,
1920                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1921         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 25116, 720, 721, 784,
1922                    816, 0, 480, 481, 512, 513, 0,
1923                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1924         { DRM_MODE("720x540", DRM_MODE_TYPE_DRIVER, 28054, 720, 721, 784,
1925                    816, 0, 540, 541, 572, 573, 0,
1926                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1927         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 29816, 720, 721, 784,
1928                    816, 0, 576, 577, 608, 609, 0,
1929                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1930         { DRM_MODE("768x576", DRM_MODE_TYPE_DRIVER, 31570, 768, 769, 832,
1931                    864, 0, 576, 577, 608, 609, 0,
1932                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1933         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 34030, 800, 801, 864,
1934                    896, 0, 600, 601, 632, 633, 0,
1935                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1936         { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 36581, 832, 833, 896,
1937                    928, 0, 624, 625, 656, 657, 0,
1938                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1939         { DRM_MODE("920x766", DRM_MODE_TYPE_DRIVER, 48707, 920, 921, 984,
1940                    1016, 0, 766, 767, 798, 799, 0,
1941                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1942         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 53827, 1024, 1025, 1088,
1943                    1120, 0, 768, 769, 800, 801, 0,
1944                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1945         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 87265, 1280, 1281, 1344,
1946                    1376, 0, 1024, 1025, 1056, 1057, 0,
1947                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1948 };
1949
1950 static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
1951 {
1952         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1953         const struct drm_connector_state *conn_state = connector->state;
1954         struct intel_sdvo_sdtv_resolution_request tv_res;
1955         uint32_t reply = 0, format_map = 0;
1956         int i;
1957
1958         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1959                       connector->base.id, connector->name);
1960
1961         /* Read the list of supported input resolutions for the selected TV
1962          * format.
1963          */
1964         format_map = 1 << conn_state->tv.mode;
1965         memcpy(&tv_res, &format_map,
1966                min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request)));
1967
1968         if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo->attached_output))
1969                 return;
1970
1971         BUILD_BUG_ON(sizeof(tv_res) != 3);
1972         if (!intel_sdvo_write_cmd(intel_sdvo,
1973                                   SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT,
1974                                   &tv_res, sizeof(tv_res)))
1975                 return;
1976         if (!intel_sdvo_read_response(intel_sdvo, &reply, 3))
1977                 return;
1978
1979         for (i = 0; i < ARRAY_SIZE(sdvo_tv_modes); i++)
1980                 if (reply & (1 << i)) {
1981                         struct drm_display_mode *nmode;
1982                         nmode = drm_mode_duplicate(connector->dev,
1983                                                    &sdvo_tv_modes[i]);
1984                         if (nmode)
1985                                 drm_mode_probed_add(connector, nmode);
1986                 }
1987 }
1988
1989 static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
1990 {
1991         struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
1992         struct drm_i915_private *dev_priv = to_i915(connector->dev);
1993         struct drm_display_mode *newmode;
1994
1995         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1996                       connector->base.id, connector->name);
1997
1998         /*
1999          * Fetch modes from VBT. For SDVO prefer the VBT mode since some
2000          * SDVO->LVDS transcoders can't cope with the EDID mode.
2001          */
2002         if (dev_priv->vbt.sdvo_lvds_vbt_mode != NULL) {
2003                 newmode = drm_mode_duplicate(connector->dev,
2004                                              dev_priv->vbt.sdvo_lvds_vbt_mode);
2005                 if (newmode != NULL) {
2006                         /* Guarantee the mode is preferred */
2007                         newmode->type = (DRM_MODE_TYPE_PREFERRED |
2008                                          DRM_MODE_TYPE_DRIVER);
2009                         drm_mode_probed_add(connector, newmode);
2010                 }
2011         }
2012
2013         /*
2014          * Attempt to get the mode list from DDC.
2015          * Assume that the preferred modes are
2016          * arranged in priority order.
2017          */
2018         intel_ddc_get_modes(connector, &intel_sdvo->ddc);
2019
2020         list_for_each_entry(newmode, &connector->probed_modes, head) {
2021                 if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
2022                         intel_sdvo->sdvo_lvds_fixed_mode =
2023                                 drm_mode_duplicate(connector->dev, newmode);
2024
2025                         intel_sdvo->is_lvds = true;
2026                         break;
2027                 }
2028         }
2029 }
2030
2031 static int intel_sdvo_get_modes(struct drm_connector *connector)
2032 {
2033         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
2034
2035         if (IS_TV(intel_sdvo_connector))
2036                 intel_sdvo_get_tv_modes(connector);
2037         else if (IS_LVDS(intel_sdvo_connector))
2038                 intel_sdvo_get_lvds_modes(connector);
2039         else
2040                 intel_sdvo_get_ddc_modes(connector);
2041
2042         return !list_empty(&connector->probed_modes);
2043 }
2044
2045 static void intel_sdvo_destroy(struct drm_connector *connector)
2046 {
2047         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
2048
2049         drm_connector_cleanup(connector);
2050         kfree(intel_sdvo_connector);
2051 }
2052
2053 static int
2054 intel_sdvo_connector_atomic_get_property(struct drm_connector *connector,
2055                                          const struct drm_connector_state *state,
2056                                          struct drm_property *property,
2057                                          uint64_t *val)
2058 {
2059         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
2060         const struct intel_sdvo_connector_state *sdvo_state = to_intel_sdvo_connector_state((void *)state);
2061
2062         if (property == intel_sdvo_connector->tv_format) {
2063                 int i;
2064
2065                 for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
2066                         if (state->tv.mode == intel_sdvo_connector->tv_format_supported[i]) {
2067                                 *val = i;
2068
2069                                 return 0;
2070                         }
2071
2072                 WARN_ON(1);
2073                 *val = 0;
2074         } else if (property == intel_sdvo_connector->top ||
2075                    property == intel_sdvo_connector->bottom)
2076                 *val = intel_sdvo_connector->max_vscan - sdvo_state->tv.overscan_v;
2077         else if (property == intel_sdvo_connector->left ||
2078                  property == intel_sdvo_connector->right)
2079                 *val = intel_sdvo_connector->max_hscan - sdvo_state->tv.overscan_h;
2080         else if (property == intel_sdvo_connector->hpos)
2081                 *val = sdvo_state->tv.hpos;
2082         else if (property == intel_sdvo_connector->vpos)
2083                 *val = sdvo_state->tv.vpos;
2084         else if (property == intel_sdvo_connector->saturation)
2085                 *val = state->tv.saturation;
2086         else if (property == intel_sdvo_connector->contrast)
2087                 *val = state->tv.contrast;
2088         else if (property == intel_sdvo_connector->hue)
2089                 *val = state->tv.hue;
2090         else if (property == intel_sdvo_connector->brightness)
2091                 *val = state->tv.brightness;
2092         else if (property == intel_sdvo_connector->sharpness)
2093                 *val = sdvo_state->tv.sharpness;
2094         else if (property == intel_sdvo_connector->flicker_filter)
2095                 *val = sdvo_state->tv.flicker_filter;
2096         else if (property == intel_sdvo_connector->flicker_filter_2d)
2097                 *val = sdvo_state->tv.flicker_filter_2d;
2098         else if (property == intel_sdvo_connector->flicker_filter_adaptive)
2099                 *val = sdvo_state->tv.flicker_filter_adaptive;
2100         else if (property == intel_sdvo_connector->tv_chroma_filter)
2101                 *val = sdvo_state->tv.chroma_filter;
2102         else if (property == intel_sdvo_connector->tv_luma_filter)
2103                 *val = sdvo_state->tv.luma_filter;
2104         else if (property == intel_sdvo_connector->dot_crawl)
2105                 *val = sdvo_state->tv.dot_crawl;
2106         else
2107                 return intel_digital_connector_atomic_get_property(connector, state, property, val);
2108
2109         return 0;
2110 }
2111
2112 static int
2113 intel_sdvo_connector_atomic_set_property(struct drm_connector *connector,
2114                                          struct drm_connector_state *state,
2115                                          struct drm_property *property,
2116                                          uint64_t val)
2117 {
2118         struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
2119         struct intel_sdvo_connector_state *sdvo_state = to_intel_sdvo_connector_state(state);
2120
2121         if (property == intel_sdvo_connector->tv_format) {
2122                 state->tv.mode = intel_sdvo_connector->tv_format_supported[val];
2123
2124                 if (state->crtc) {
2125                         struct drm_crtc_state *crtc_state =
2126                                 drm_atomic_get_new_crtc_state(state->state, state->crtc);
2127
2128                         crtc_state->connectors_changed = true;
2129                 }
2130         } else if (property == intel_sdvo_connector->top ||
2131                    property == intel_sdvo_connector->bottom)
2132                 /* Cannot set these independent from each other */
2133                 sdvo_state->tv.overscan_v = intel_sdvo_connector->max_vscan - val;
2134         else if (property == intel_sdvo_connector->left ||
2135                  property == intel_sdvo_connector->right)
2136                 /* Cannot set these independent from each other */
2137                 sdvo_state->tv.overscan_h = intel_sdvo_connector->max_hscan - val;
2138         else if (property == intel_sdvo_connector->hpos)
2139                 sdvo_state->tv.hpos = val;
2140         else if (property == intel_sdvo_connector->vpos)
2141                 sdvo_state->tv.vpos = val;
2142         else if (property == intel_sdvo_connector->saturation)
2143                 state->tv.saturation = val;
2144         else if (property == intel_sdvo_connector->contrast)
2145                 state->tv.contrast = val;
2146         else if (property == intel_sdvo_connector->hue)
2147                 state->tv.hue = val;
2148         else if (property == intel_sdvo_connector->brightness)
2149                 state->tv.brightness = val;
2150         else if (property == intel_sdvo_connector->sharpness)
2151                 sdvo_state->tv.sharpness = val;
2152         else if (property == intel_sdvo_connector->flicker_filter)
2153                 sdvo_state->tv.flicker_filter = val;
2154         else if (property == intel_sdvo_connector->flicker_filter_2d)
2155                 sdvo_state->tv.flicker_filter_2d = val;
2156         else if (property == intel_sdvo_connector->flicker_filter_adaptive)
2157                 sdvo_state->tv.flicker_filter_adaptive = val;
2158         else if (property == intel_sdvo_connector->tv_chroma_filter)
2159                 sdvo_state->tv.chroma_filter = val;
2160         else if (property == intel_sdvo_connector->tv_luma_filter)
2161                 sdvo_state->tv.luma_filter = val;
2162         else if (property == intel_sdvo_connector->dot_crawl)
2163                 sdvo_state->tv.dot_crawl = val;
2164         else
2165                 return intel_digital_connector_atomic_set_property(connector, state, property, val);
2166
2167         return 0;
2168 }
2169
2170 static int
2171 intel_sdvo_connector_register(struct drm_connector *connector)
2172 {
2173         struct intel_sdvo *sdvo = intel_attached_sdvo(connector);
2174         int ret;
2175
2176         ret = intel_connector_register(connector);
2177         if (ret)
2178                 return ret;
2179
2180         return sysfs_create_link(&connector->kdev->kobj,
2181                                  &sdvo->ddc.dev.kobj,
2182                                  sdvo->ddc.dev.kobj.name);
2183 }
2184
2185 static void
2186 intel_sdvo_connector_unregister(struct drm_connector *connector)
2187 {
2188         struct intel_sdvo *sdvo = intel_attached_sdvo(connector);
2189
2190         sysfs_remove_link(&connector->kdev->kobj,
2191                           sdvo->ddc.dev.kobj.name);
2192         intel_connector_unregister(connector);
2193 }
2194
2195 static struct drm_connector_state *
2196 intel_sdvo_connector_duplicate_state(struct drm_connector *connector)
2197 {
2198         struct intel_sdvo_connector_state *state;
2199
2200         state = kmemdup(connector->state, sizeof(*state), GFP_KERNEL);
2201         if (!state)
2202                 return NULL;
2203
2204         __drm_atomic_helper_connector_duplicate_state(connector, &state->base.base);
2205         return &state->base.base;
2206 }
2207
2208 static const struct drm_connector_funcs intel_sdvo_connector_funcs = {
2209         .detect = intel_sdvo_detect,
2210         .fill_modes = drm_helper_probe_single_connector_modes,
2211         .atomic_get_property = intel_sdvo_connector_atomic_get_property,
2212         .atomic_set_property = intel_sdvo_connector_atomic_set_property,
2213         .late_register = intel_sdvo_connector_register,
2214         .early_unregister = intel_sdvo_connector_unregister,
2215         .destroy = intel_sdvo_destroy,
2216         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
2217         .atomic_duplicate_state = intel_sdvo_connector_duplicate_state,
2218 };
2219
2220 static int intel_sdvo_atomic_check(struct drm_connector *conn,
2221                                    struct drm_connector_state *new_conn_state)
2222 {
2223         struct drm_atomic_state *state = new_conn_state->state;
2224         struct drm_connector_state *old_conn_state =
2225                 drm_atomic_get_old_connector_state(state, conn);
2226         struct intel_sdvo_connector_state *old_state =
2227                 to_intel_sdvo_connector_state(old_conn_state);
2228         struct intel_sdvo_connector_state *new_state =
2229                 to_intel_sdvo_connector_state(new_conn_state);
2230
2231         if (new_conn_state->crtc &&
2232             (memcmp(&old_state->tv, &new_state->tv, sizeof(old_state->tv)) ||
2233              memcmp(&old_conn_state->tv, &new_conn_state->tv, sizeof(old_conn_state->tv)))) {
2234                 struct drm_crtc_state *crtc_state =
2235                         drm_atomic_get_new_crtc_state(new_conn_state->state,
2236                                                       new_conn_state->crtc);
2237
2238                 crtc_state->connectors_changed = true;
2239         }
2240
2241         return intel_digital_connector_atomic_check(conn, new_conn_state);
2242 }
2243
2244 static const struct drm_connector_helper_funcs intel_sdvo_connector_helper_funcs = {
2245         .get_modes = intel_sdvo_get_modes,
2246         .mode_valid = intel_sdvo_mode_valid,
2247         .atomic_check = intel_sdvo_atomic_check,
2248 };
2249
2250 static void intel_sdvo_enc_destroy(struct drm_encoder *encoder)
2251 {
2252         struct intel_sdvo *intel_sdvo = to_sdvo(to_intel_encoder(encoder));
2253
2254         if (intel_sdvo->sdvo_lvds_fixed_mode != NULL)
2255                 drm_mode_destroy(encoder->dev,
2256                                  intel_sdvo->sdvo_lvds_fixed_mode);
2257
2258         i2c_del_adapter(&intel_sdvo->ddc);
2259         intel_encoder_destroy(encoder);
2260 }
2261
2262 static const struct drm_encoder_funcs intel_sdvo_enc_funcs = {
2263         .destroy = intel_sdvo_enc_destroy,
2264 };
2265
2266 static void
2267 intel_sdvo_guess_ddc_bus(struct intel_sdvo *sdvo)
2268 {
2269         uint16_t mask = 0;
2270         unsigned int num_bits;
2271
2272         /* Make a mask of outputs less than or equal to our own priority in the
2273          * list.
2274          */
2275         switch (sdvo->controlled_output) {
2276         case SDVO_OUTPUT_LVDS1:
2277                 mask |= SDVO_OUTPUT_LVDS1;
2278         case SDVO_OUTPUT_LVDS0:
2279                 mask |= SDVO_OUTPUT_LVDS0;
2280         case SDVO_OUTPUT_TMDS1:
2281                 mask |= SDVO_OUTPUT_TMDS1;
2282         case SDVO_OUTPUT_TMDS0:
2283                 mask |= SDVO_OUTPUT_TMDS0;
2284         case SDVO_OUTPUT_RGB1:
2285                 mask |= SDVO_OUTPUT_RGB1;
2286         case SDVO_OUTPUT_RGB0:
2287                 mask |= SDVO_OUTPUT_RGB0;
2288                 break;
2289         }
2290
2291         /* Count bits to find what number we are in the priority list. */
2292         mask &= sdvo->caps.output_flags;
2293         num_bits = hweight16(mask);
2294         /* If more than 3 outputs, default to DDC bus 3 for now. */
2295         if (num_bits > 3)
2296                 num_bits = 3;
2297
2298         /* Corresponds to SDVO_CONTROL_BUS_DDCx */
2299         sdvo->ddc_bus = 1 << num_bits;
2300 }
2301
2302 /**
2303  * Choose the appropriate DDC bus for control bus switch command for this
2304  * SDVO output based on the controlled output.
2305  *
2306  * DDC bus number assignment is in a priority order of RGB outputs, then TMDS
2307  * outputs, then LVDS outputs.
2308  */
2309 static void
2310 intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv,
2311                           struct intel_sdvo *sdvo)
2312 {
2313         struct sdvo_device_mapping *mapping;
2314
2315         if (sdvo->port == PORT_B)
2316                 mapping = &dev_priv->vbt.sdvo_mappings[0];
2317         else
2318                 mapping = &dev_priv->vbt.sdvo_mappings[1];
2319
2320         if (mapping->initialized)
2321                 sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
2322         else
2323                 intel_sdvo_guess_ddc_bus(sdvo);
2324 }
2325
2326 static void
2327 intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
2328                           struct intel_sdvo *sdvo)
2329 {
2330         struct sdvo_device_mapping *mapping;
2331         u8 pin;
2332
2333         if (sdvo->port == PORT_B)
2334                 mapping = &dev_priv->vbt.sdvo_mappings[0];
2335         else
2336                 mapping = &dev_priv->vbt.sdvo_mappings[1];
2337
2338         if (mapping->initialized &&
2339             intel_gmbus_is_valid_pin(dev_priv, mapping->i2c_pin))
2340                 pin = mapping->i2c_pin;
2341         else
2342                 pin = GMBUS_PIN_DPB;
2343
2344         sdvo->i2c = intel_gmbus_get_adapter(dev_priv, pin);
2345
2346         /* With gmbus we should be able to drive sdvo i2c at 2MHz, but somehow
2347          * our code totally fails once we start using gmbus. Hence fall back to
2348          * bit banging for now. */
2349         intel_gmbus_force_bit(sdvo->i2c, true);
2350 }
2351
2352 /* undo any changes intel_sdvo_select_i2c_bus() did to sdvo->i2c */
2353 static void
2354 intel_sdvo_unselect_i2c_bus(struct intel_sdvo *sdvo)
2355 {
2356         intel_gmbus_force_bit(sdvo->i2c, false);
2357 }
2358
2359 static bool
2360 intel_sdvo_is_hdmi_connector(struct intel_sdvo *intel_sdvo, int device)
2361 {
2362         return intel_sdvo_check_supp_encode(intel_sdvo);
2363 }
2364
2365 static u8
2366 intel_sdvo_get_slave_addr(struct drm_i915_private *dev_priv,
2367                           struct intel_sdvo *sdvo)
2368 {
2369         struct sdvo_device_mapping *my_mapping, *other_mapping;
2370
2371         if (sdvo->port == PORT_B) {
2372                 my_mapping = &dev_priv->vbt.sdvo_mappings[0];
2373                 other_mapping = &dev_priv->vbt.sdvo_mappings[1];
2374         } else {
2375                 my_mapping = &dev_priv->vbt.sdvo_mappings[1];
2376                 other_mapping = &dev_priv->vbt.sdvo_mappings[0];
2377         }
2378
2379         /* If the BIOS described our SDVO device, take advantage of it. */
2380         if (my_mapping->slave_addr)
2381                 return my_mapping->slave_addr;
2382
2383         /* If the BIOS only described a different SDVO device, use the
2384          * address that it isn't using.
2385          */
2386         if (other_mapping->slave_addr) {
2387                 if (other_mapping->slave_addr == 0x70)
2388                         return 0x72;
2389                 else
2390                         return 0x70;
2391         }
2392
2393         /* No SDVO device info is found for another DVO port,
2394          * so use mapping assumption we had before BIOS parsing.
2395          */
2396         if (sdvo->port == PORT_B)
2397                 return 0x70;
2398         else
2399                 return 0x72;
2400 }
2401
2402 static int
2403 intel_sdvo_connector_init(struct intel_sdvo_connector *connector,
2404                           struct intel_sdvo *encoder)
2405 {
2406         struct drm_connector *drm_connector;
2407         int ret;
2408
2409         drm_connector = &connector->base.base;
2410         ret = drm_connector_init(encoder->base.base.dev,
2411                            drm_connector,
2412                            &intel_sdvo_connector_funcs,
2413                            connector->base.base.connector_type);
2414         if (ret < 0)
2415                 return ret;
2416
2417         drm_connector_helper_add(drm_connector,
2418                                  &intel_sdvo_connector_helper_funcs);
2419
2420         connector->base.base.interlace_allowed = 1;
2421         connector->base.base.doublescan_allowed = 0;
2422         connector->base.base.display_info.subpixel_order = SubPixelHorizontalRGB;
2423         connector->base.get_hw_state = intel_sdvo_connector_get_hw_state;
2424
2425         intel_connector_attach_encoder(&connector->base, &encoder->base);
2426
2427         return 0;
2428 }
2429
2430 static void
2431 intel_sdvo_add_hdmi_properties(struct intel_sdvo *intel_sdvo,
2432                                struct intel_sdvo_connector *connector)
2433 {
2434         struct drm_i915_private *dev_priv = to_i915(connector->base.base.dev);
2435
2436         intel_attach_force_audio_property(&connector->base.base);
2437         if (INTEL_GEN(dev_priv) >= 4 && IS_MOBILE(dev_priv)) {
2438                 intel_attach_broadcast_rgb_property(&connector->base.base);
2439         }
2440         intel_attach_aspect_ratio_property(&connector->base.base);
2441         connector->base.base.state->picture_aspect_ratio = HDMI_PICTURE_ASPECT_NONE;
2442 }
2443
2444 static struct intel_sdvo_connector *intel_sdvo_connector_alloc(void)
2445 {
2446         struct intel_sdvo_connector *sdvo_connector;
2447         struct intel_sdvo_connector_state *conn_state;
2448
2449         sdvo_connector = kzalloc(sizeof(*sdvo_connector), GFP_KERNEL);
2450         if (!sdvo_connector)
2451                 return NULL;
2452
2453         conn_state = kzalloc(sizeof(*conn_state), GFP_KERNEL);
2454         if (!conn_state) {
2455                 kfree(sdvo_connector);
2456                 return NULL;
2457         }
2458
2459         __drm_atomic_helper_connector_reset(&sdvo_connector->base.base,
2460                                             &conn_state->base.base);
2461
2462         return sdvo_connector;
2463 }
2464
2465 static bool
2466 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
2467 {
2468         struct drm_encoder *encoder = &intel_sdvo->base.base;
2469         struct drm_i915_private *dev_priv = to_i915(encoder->dev);
2470         struct drm_connector *connector;
2471         struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
2472         struct intel_connector *intel_connector;
2473         struct intel_sdvo_connector *intel_sdvo_connector;
2474
2475         DRM_DEBUG_KMS("initialising DVI device %d\n", device);
2476
2477         intel_sdvo_connector = intel_sdvo_connector_alloc();
2478         if (!intel_sdvo_connector)
2479                 return false;
2480
2481         if (device == 0) {
2482                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS0;
2483                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS0;
2484         } else if (device == 1) {
2485                 intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS1;
2486                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS1;
2487         }
2488
2489         intel_connector = &intel_sdvo_connector->base;
2490         connector = &intel_connector->base;
2491         if (intel_sdvo_get_hotplug_support(intel_sdvo) &
2492                 intel_sdvo_connector->output_flag) {
2493                 intel_sdvo->hotplug_active |= intel_sdvo_connector->output_flag;
2494                 /* Some SDVO devices have one-shot hotplug interrupts.
2495                  * Ensure that they get re-enabled when an interrupt happens.
2496                  */
2497                 intel_encoder->hot_plug = intel_sdvo_enable_hotplug;
2498                 intel_sdvo_enable_hotplug(intel_encoder);
2499         } else {
2500                 intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
2501         }
2502         encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
2503         connector->connector_type = DRM_MODE_CONNECTOR_DVID;
2504
2505         /* gen3 doesn't do the hdmi bits in the SDVO register */
2506         if (INTEL_GEN(dev_priv) >= 4 &&
2507             intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
2508                 connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
2509                 intel_sdvo->is_hdmi = true;
2510         }
2511
2512         if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2513                 kfree(intel_sdvo_connector);
2514                 return false;
2515         }
2516
2517         if (intel_sdvo->is_hdmi)
2518                 intel_sdvo_add_hdmi_properties(intel_sdvo, intel_sdvo_connector);
2519
2520         return true;
2521 }
2522
2523 static bool
2524 intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
2525 {
2526         struct drm_encoder *encoder = &intel_sdvo->base.base;
2527         struct drm_connector *connector;
2528         struct intel_connector *intel_connector;
2529         struct intel_sdvo_connector *intel_sdvo_connector;
2530
2531         DRM_DEBUG_KMS("initialising TV type %d\n", type);
2532
2533         intel_sdvo_connector = intel_sdvo_connector_alloc();
2534         if (!intel_sdvo_connector)
2535                 return false;
2536
2537         intel_connector = &intel_sdvo_connector->base;
2538         connector = &intel_connector->base;
2539         encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
2540         connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
2541
2542         intel_sdvo->controlled_output |= type;
2543         intel_sdvo_connector->output_flag = type;
2544
2545         intel_sdvo->is_tv = true;
2546
2547         if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2548                 kfree(intel_sdvo_connector);
2549                 return false;
2550         }
2551
2552         if (!intel_sdvo_tv_create_property(intel_sdvo, intel_sdvo_connector, type))
2553                 goto err;
2554
2555         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2556                 goto err;
2557
2558         return true;
2559
2560 err:
2561         intel_sdvo_destroy(connector);
2562         return false;
2563 }
2564
2565 static bool
2566 intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device)
2567 {
2568         struct drm_encoder *encoder = &intel_sdvo->base.base;
2569         struct drm_connector *connector;
2570         struct intel_connector *intel_connector;
2571         struct intel_sdvo_connector *intel_sdvo_connector;
2572
2573         DRM_DEBUG_KMS("initialising analog device %d\n", device);
2574
2575         intel_sdvo_connector = intel_sdvo_connector_alloc();
2576         if (!intel_sdvo_connector)
2577                 return false;
2578
2579         intel_connector = &intel_sdvo_connector->base;
2580         connector = &intel_connector->base;
2581         intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT;
2582         encoder->encoder_type = DRM_MODE_ENCODER_DAC;
2583         connector->connector_type = DRM_MODE_CONNECTOR_VGA;
2584
2585         if (device == 0) {
2586                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB0;
2587                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB0;
2588         } else if (device == 1) {
2589                 intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB1;
2590                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1;
2591         }
2592
2593         if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2594                 kfree(intel_sdvo_connector);
2595                 return false;
2596         }
2597
2598         return true;
2599 }
2600
2601 static bool
2602 intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
2603 {
2604         struct drm_encoder *encoder = &intel_sdvo->base.base;
2605         struct drm_connector *connector;
2606         struct intel_connector *intel_connector;
2607         struct intel_sdvo_connector *intel_sdvo_connector;
2608
2609         DRM_DEBUG_KMS("initialising LVDS device %d\n", device);
2610
2611         intel_sdvo_connector = intel_sdvo_connector_alloc();
2612         if (!intel_sdvo_connector)
2613                 return false;
2614
2615         intel_connector = &intel_sdvo_connector->base;
2616         connector = &intel_connector->base;
2617         encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
2618         connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
2619
2620         if (device == 0) {
2621                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS0;
2622                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS0;
2623         } else if (device == 1) {
2624                 intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS1;
2625                 intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1;
2626         }
2627
2628         if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
2629                 kfree(intel_sdvo_connector);
2630                 return false;
2631         }
2632
2633         if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
2634                 goto err;
2635
2636         return true;
2637
2638 err:
2639         intel_sdvo_destroy(connector);
2640         return false;
2641 }
2642
2643 static bool
2644 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
2645 {
2646         intel_sdvo->is_tv = false;
2647         intel_sdvo->is_lvds = false;
2648
2649         /* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
2650
2651         if (flags & SDVO_OUTPUT_TMDS0)
2652                 if (!intel_sdvo_dvi_init(intel_sdvo, 0))
2653                         return false;
2654
2655         if ((flags & SDVO_TMDS_MASK) == SDVO_TMDS_MASK)
2656                 if (!intel_sdvo_dvi_init(intel_sdvo, 1))
2657                         return false;
2658
2659         /* TV has no XXX1 function block */
2660         if (flags & SDVO_OUTPUT_SVID0)
2661                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_SVID0))
2662                         return false;
2663
2664         if (flags & SDVO_OUTPUT_CVBS0)
2665                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_CVBS0))
2666                         return false;
2667
2668         if (flags & SDVO_OUTPUT_YPRPB0)
2669                 if (!intel_sdvo_tv_init(intel_sdvo, SDVO_OUTPUT_YPRPB0))
2670                         return false;
2671
2672         if (flags & SDVO_OUTPUT_RGB0)
2673                 if (!intel_sdvo_analog_init(intel_sdvo, 0))
2674                         return false;
2675
2676         if ((flags & SDVO_RGB_MASK) == SDVO_RGB_MASK)
2677                 if (!intel_sdvo_analog_init(intel_sdvo, 1))
2678                         return false;
2679
2680         if (flags & SDVO_OUTPUT_LVDS0)
2681                 if (!intel_sdvo_lvds_init(intel_sdvo, 0))
2682                         return false;
2683
2684         if ((flags & SDVO_LVDS_MASK) == SDVO_LVDS_MASK)
2685                 if (!intel_sdvo_lvds_init(intel_sdvo, 1))
2686                         return false;
2687
2688         if ((flags & SDVO_OUTPUT_MASK) == 0) {
2689                 unsigned char bytes[2];
2690
2691                 intel_sdvo->controlled_output = 0;
2692                 memcpy(bytes, &intel_sdvo->caps.output_flags, 2);
2693                 DRM_DEBUG_KMS("%s: Unknown SDVO output type (0x%02x%02x)\n",
2694                               SDVO_NAME(intel_sdvo),
2695                               bytes[0], bytes[1]);
2696                 return false;
2697         }
2698         intel_sdvo->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
2699
2700         return true;
2701 }
2702
2703 static void intel_sdvo_output_cleanup(struct intel_sdvo *intel_sdvo)
2704 {
2705         struct drm_device *dev = intel_sdvo->base.base.dev;
2706         struct drm_connector *connector, *tmp;
2707
2708         list_for_each_entry_safe(connector, tmp,
2709                                  &dev->mode_config.connector_list, head) {
2710                 if (intel_attached_encoder(connector) == &intel_sdvo->base) {
2711                         drm_connector_unregister(connector);
2712                         intel_sdvo_destroy(connector);
2713                 }
2714         }
2715 }
2716
2717 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
2718                                           struct intel_sdvo_connector *intel_sdvo_connector,
2719                                           int type)
2720 {
2721         struct drm_device *dev = intel_sdvo->base.base.dev;
2722         struct intel_sdvo_tv_format format;
2723         uint32_t format_map, i;
2724
2725         if (!intel_sdvo_set_target_output(intel_sdvo, type))
2726                 return false;
2727
2728         BUILD_BUG_ON(sizeof(format) != 6);
2729         if (!intel_sdvo_get_value(intel_sdvo,
2730                                   SDVO_CMD_GET_SUPPORTED_TV_FORMATS,
2731                                   &format, sizeof(format)))
2732                 return false;
2733
2734         memcpy(&format_map, &format, min(sizeof(format_map), sizeof(format)));
2735
2736         if (format_map == 0)
2737                 return false;
2738
2739         intel_sdvo_connector->format_supported_num = 0;
2740         for (i = 0 ; i < TV_FORMAT_NUM; i++)
2741                 if (format_map & (1 << i))
2742                         intel_sdvo_connector->tv_format_supported[intel_sdvo_connector->format_supported_num++] = i;
2743
2744
2745         intel_sdvo_connector->tv_format =
2746                         drm_property_create(dev, DRM_MODE_PROP_ENUM,
2747                                             "mode", intel_sdvo_connector->format_supported_num);
2748         if (!intel_sdvo_connector->tv_format)
2749                 return false;
2750
2751         for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
2752                 drm_property_add_enum(
2753                                 intel_sdvo_connector->tv_format, i,
2754                                 i, tv_format_names[intel_sdvo_connector->tv_format_supported[i]]);
2755
2756         intel_sdvo_connector->base.base.state->tv.mode = intel_sdvo_connector->tv_format_supported[0];
2757         drm_object_attach_property(&intel_sdvo_connector->base.base.base,
2758                                    intel_sdvo_connector->tv_format, 0);
2759         return true;
2760
2761 }
2762
2763 #define _ENHANCEMENT(state_assignment, name, NAME) do { \
2764         if (enhancements.name) { \
2765                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_MAX_##NAME, &data_value, 4) || \
2766                     !intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_##NAME, &response, 2)) \
2767                         return false; \
2768                 intel_sdvo_connector->name = \
2769                         drm_property_create_range(dev, 0, #name, 0, data_value[0]); \
2770                 if (!intel_sdvo_connector->name) return false; \
2771                 state_assignment = response; \
2772                 drm_object_attach_property(&connector->base, \
2773                                            intel_sdvo_connector->name, 0); \
2774                 DRM_DEBUG_KMS(#name ": max %d, default %d, current %d\n", \
2775                               data_value[0], data_value[1], response); \
2776         } \
2777 } while (0)
2778
2779 #define ENHANCEMENT(state, name, NAME) _ENHANCEMENT((state)->name, name, NAME)
2780
2781 static bool
2782 intel_sdvo_create_enhance_property_tv(struct intel_sdvo *intel_sdvo,
2783                                       struct intel_sdvo_connector *intel_sdvo_connector,
2784                                       struct intel_sdvo_enhancements_reply enhancements)
2785 {
2786         struct drm_device *dev = intel_sdvo->base.base.dev;
2787         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2788         struct drm_connector_state *conn_state = connector->state;
2789         struct intel_sdvo_connector_state *sdvo_state =
2790                 to_intel_sdvo_connector_state(conn_state);
2791         uint16_t response, data_value[2];
2792
2793         /* when horizontal overscan is supported, Add the left/right  property */
2794         if (enhancements.overscan_h) {
2795                 if (!intel_sdvo_get_value(intel_sdvo,
2796                                           SDVO_CMD_GET_MAX_OVERSCAN_H,
2797                                           &data_value, 4))
2798                         return false;
2799
2800                 if (!intel_sdvo_get_value(intel_sdvo,
2801                                           SDVO_CMD_GET_OVERSCAN_H,
2802                                           &response, 2))
2803                         return false;
2804
2805                 sdvo_state->tv.overscan_h = response;
2806
2807                 intel_sdvo_connector->max_hscan = data_value[0];
2808                 intel_sdvo_connector->left =
2809                         drm_property_create_range(dev, 0, "left_margin", 0, data_value[0]);
2810                 if (!intel_sdvo_connector->left)
2811                         return false;
2812
2813                 drm_object_attach_property(&connector->base,
2814                                            intel_sdvo_connector->left, 0);
2815
2816                 intel_sdvo_connector->right =
2817                         drm_property_create_range(dev, 0, "right_margin", 0, data_value[0]);
2818                 if (!intel_sdvo_connector->right)
2819                         return false;
2820
2821                 drm_object_attach_property(&connector->base,
2822                                               intel_sdvo_connector->right, 0);
2823                 DRM_DEBUG_KMS("h_overscan: max %d, "
2824                               "default %d, current %d\n",
2825                               data_value[0], data_value[1], response);
2826         }
2827
2828         if (enhancements.overscan_v) {
2829                 if (!intel_sdvo_get_value(intel_sdvo,
2830                                           SDVO_CMD_GET_MAX_OVERSCAN_V,
2831                                           &data_value, 4))
2832                         return false;
2833
2834                 if (!intel_sdvo_get_value(intel_sdvo,
2835                                           SDVO_CMD_GET_OVERSCAN_V,
2836                                           &response, 2))
2837                         return false;
2838
2839                 sdvo_state->tv.overscan_v = response;
2840
2841                 intel_sdvo_connector->max_vscan = data_value[0];
2842                 intel_sdvo_connector->top =
2843                         drm_property_create_range(dev, 0,
2844                                             "top_margin", 0, data_value[0]);
2845                 if (!intel_sdvo_connector->top)
2846                         return false;
2847
2848                 drm_object_attach_property(&connector->base,
2849                                            intel_sdvo_connector->top, 0);
2850
2851                 intel_sdvo_connector->bottom =
2852                         drm_property_create_range(dev, 0,
2853                                             "bottom_margin", 0, data_value[0]);
2854                 if (!intel_sdvo_connector->bottom)
2855                         return false;
2856
2857                 drm_object_attach_property(&connector->base,
2858                                               intel_sdvo_connector->bottom, 0);
2859                 DRM_DEBUG_KMS("v_overscan: max %d, "
2860                               "default %d, current %d\n",
2861                               data_value[0], data_value[1], response);
2862         }
2863
2864         ENHANCEMENT(&sdvo_state->tv, hpos, HPOS);
2865         ENHANCEMENT(&sdvo_state->tv, vpos, VPOS);
2866         ENHANCEMENT(&conn_state->tv, saturation, SATURATION);
2867         ENHANCEMENT(&conn_state->tv, contrast, CONTRAST);
2868         ENHANCEMENT(&conn_state->tv, hue, HUE);
2869         ENHANCEMENT(&conn_state->tv, brightness, BRIGHTNESS);
2870         ENHANCEMENT(&sdvo_state->tv, sharpness, SHARPNESS);
2871         ENHANCEMENT(&sdvo_state->tv, flicker_filter, FLICKER_FILTER);
2872         ENHANCEMENT(&sdvo_state->tv, flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
2873         ENHANCEMENT(&sdvo_state->tv, flicker_filter_2d, FLICKER_FILTER_2D);
2874         _ENHANCEMENT(sdvo_state->tv.chroma_filter, tv_chroma_filter, TV_CHROMA_FILTER);
2875         _ENHANCEMENT(sdvo_state->tv.luma_filter, tv_luma_filter, TV_LUMA_FILTER);
2876
2877         if (enhancements.dot_crawl) {
2878                 if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_DOT_CRAWL, &response, 2))
2879                         return false;
2880
2881                 sdvo_state->tv.dot_crawl = response & 0x1;
2882                 intel_sdvo_connector->dot_crawl =
2883                         drm_property_create_range(dev, 0, "dot_crawl", 0, 1);
2884                 if (!intel_sdvo_connector->dot_crawl)
2885                         return false;
2886
2887                 drm_object_attach_property(&connector->base,
2888                                            intel_sdvo_connector->dot_crawl, 0);
2889                 DRM_DEBUG_KMS("dot crawl: current %d\n", response);
2890         }
2891
2892         return true;
2893 }
2894
2895 static bool
2896 intel_sdvo_create_enhance_property_lvds(struct intel_sdvo *intel_sdvo,
2897                                         struct intel_sdvo_connector *intel_sdvo_connector,
2898                                         struct intel_sdvo_enhancements_reply enhancements)
2899 {
2900         struct drm_device *dev = intel_sdvo->base.base.dev;
2901         struct drm_connector *connector = &intel_sdvo_connector->base.base;
2902         uint16_t response, data_value[2];
2903
2904         ENHANCEMENT(&connector->state->tv, brightness, BRIGHTNESS);
2905
2906         return true;
2907 }
2908 #undef ENHANCEMENT
2909 #undef _ENHANCEMENT
2910
2911 static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
2912                                                struct intel_sdvo_connector *intel_sdvo_connector)
2913 {
2914         union {
2915                 struct intel_sdvo_enhancements_reply reply;
2916                 uint16_t response;
2917         } enhancements;
2918
2919         BUILD_BUG_ON(sizeof(enhancements) != 2);
2920
2921         if (!intel_sdvo_get_value(intel_sdvo,
2922                                   SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
2923                                   &enhancements, sizeof(enhancements)) ||
2924             enhancements.response == 0) {
2925                 DRM_DEBUG_KMS("No enhancement is supported\n");
2926                 return true;
2927         }
2928
2929         if (IS_TV(intel_sdvo_connector))
2930                 return intel_sdvo_create_enhance_property_tv(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2931         else if (IS_LVDS(intel_sdvo_connector))
2932                 return intel_sdvo_create_enhance_property_lvds(intel_sdvo, intel_sdvo_connector, enhancements.reply);
2933         else
2934                 return true;
2935 }
2936
2937 static int intel_sdvo_ddc_proxy_xfer(struct i2c_adapter *adapter,
2938                                      struct i2c_msg *msgs,
2939                                      int num)
2940 {
2941         struct intel_sdvo *sdvo = adapter->algo_data;
2942
2943         if (!__intel_sdvo_set_control_bus_switch(sdvo, sdvo->ddc_bus))
2944                 return -EIO;
2945
2946         return sdvo->i2c->algo->master_xfer(sdvo->i2c, msgs, num);
2947 }
2948
2949 static u32 intel_sdvo_ddc_proxy_func(struct i2c_adapter *adapter)
2950 {
2951         struct intel_sdvo *sdvo = adapter->algo_data;
2952         return sdvo->i2c->algo->functionality(sdvo->i2c);
2953 }
2954
2955 static const struct i2c_algorithm intel_sdvo_ddc_proxy = {
2956         .master_xfer    = intel_sdvo_ddc_proxy_xfer,
2957         .functionality  = intel_sdvo_ddc_proxy_func
2958 };
2959
2960 static void proxy_lock_bus(struct i2c_adapter *adapter,
2961                            unsigned int flags)
2962 {
2963         struct intel_sdvo *sdvo = adapter->algo_data;
2964         sdvo->i2c->lock_ops->lock_bus(sdvo->i2c, flags);
2965 }
2966
2967 static int proxy_trylock_bus(struct i2c_adapter *adapter,
2968                              unsigned int flags)
2969 {
2970         struct intel_sdvo *sdvo = adapter->algo_data;
2971         return sdvo->i2c->lock_ops->trylock_bus(sdvo->i2c, flags);
2972 }
2973
2974 static void proxy_unlock_bus(struct i2c_adapter *adapter,
2975                              unsigned int flags)
2976 {
2977         struct intel_sdvo *sdvo = adapter->algo_data;
2978         sdvo->i2c->lock_ops->unlock_bus(sdvo->i2c, flags);
2979 }
2980
2981 static const struct i2c_lock_operations proxy_lock_ops = {
2982         .lock_bus =    proxy_lock_bus,
2983         .trylock_bus = proxy_trylock_bus,
2984         .unlock_bus =  proxy_unlock_bus,
2985 };
2986
2987 static bool
2988 intel_sdvo_init_ddc_proxy(struct intel_sdvo *sdvo,
2989                           struct drm_i915_private *dev_priv)
2990 {
2991         struct pci_dev *pdev = dev_priv->drm.pdev;
2992
2993         sdvo->ddc.owner = THIS_MODULE;
2994         sdvo->ddc.class = I2C_CLASS_DDC;
2995         snprintf(sdvo->ddc.name, I2C_NAME_SIZE, "SDVO DDC proxy");
2996         sdvo->ddc.dev.parent = &pdev->dev;
2997         sdvo->ddc.algo_data = sdvo;
2998         sdvo->ddc.algo = &intel_sdvo_ddc_proxy;
2999         sdvo->ddc.lock_ops = &proxy_lock_ops;
3000
3001         return i2c_add_adapter(&sdvo->ddc) == 0;
3002 }
3003
3004 static void assert_sdvo_port_valid(const struct drm_i915_private *dev_priv,
3005                                    enum port port)
3006 {
3007         if (HAS_PCH_SPLIT(dev_priv))
3008                 WARN_ON(port != PORT_B);
3009         else
3010                 WARN_ON(port != PORT_B && port != PORT_C);
3011 }
3012
3013 bool intel_sdvo_init(struct drm_i915_private *dev_priv,
3014                      i915_reg_t sdvo_reg, enum port port)
3015 {
3016         struct intel_encoder *intel_encoder;
3017         struct intel_sdvo *intel_sdvo;
3018         int i;
3019
3020         assert_sdvo_port_valid(dev_priv, port);
3021
3022         intel_sdvo = kzalloc(sizeof(*intel_sdvo), GFP_KERNEL);
3023         if (!intel_sdvo)
3024                 return false;
3025
3026         intel_sdvo->sdvo_reg = sdvo_reg;
3027         intel_sdvo->port = port;
3028         intel_sdvo->slave_addr =
3029                 intel_sdvo_get_slave_addr(dev_priv, intel_sdvo) >> 1;
3030         intel_sdvo_select_i2c_bus(dev_priv, intel_sdvo);
3031         if (!intel_sdvo_init_ddc_proxy(intel_sdvo, dev_priv))
3032                 goto err_i2c_bus;
3033
3034         /* encoder type will be decided later */
3035         intel_encoder = &intel_sdvo->base;
3036         intel_encoder->type = INTEL_OUTPUT_SDVO;
3037         intel_encoder->power_domain = POWER_DOMAIN_PORT_OTHER;
3038         intel_encoder->port = port;
3039         drm_encoder_init(&dev_priv->drm, &intel_encoder->base,
3040                          &intel_sdvo_enc_funcs, 0,
3041                          "SDVO %c", port_name(port));
3042
3043         /* Read the regs to test if we can talk to the device */
3044         for (i = 0; i < 0x40; i++) {
3045                 u8 byte;
3046
3047                 if (!intel_sdvo_read_byte(intel_sdvo, i, &byte)) {
3048                         DRM_DEBUG_KMS("No SDVO device found on %s\n",
3049                                       SDVO_NAME(intel_sdvo));
3050                         goto err;
3051                 }
3052         }
3053
3054         intel_encoder->compute_config = intel_sdvo_compute_config;
3055         if (HAS_PCH_SPLIT(dev_priv)) {
3056                 intel_encoder->disable = pch_disable_sdvo;
3057                 intel_encoder->post_disable = pch_post_disable_sdvo;
3058         } else {
3059                 intel_encoder->disable = intel_disable_sdvo;
3060         }
3061         intel_encoder->pre_enable = intel_sdvo_pre_enable;
3062         intel_encoder->enable = intel_enable_sdvo;
3063         intel_encoder->get_hw_state = intel_sdvo_get_hw_state;
3064         intel_encoder->get_config = intel_sdvo_get_config;
3065
3066         /* In default case sdvo lvds is false */
3067         if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
3068                 goto err;
3069
3070         if (intel_sdvo_output_setup(intel_sdvo,
3071                                     intel_sdvo->caps.output_flags) != true) {
3072                 DRM_DEBUG_KMS("SDVO output failed to setup on %s\n",
3073                               SDVO_NAME(intel_sdvo));
3074                 /* Output_setup can leave behind connectors! */
3075                 goto err_output;
3076         }
3077
3078         /* Only enable the hotplug irq if we need it, to work around noisy
3079          * hotplug lines.
3080          */
3081         if (intel_sdvo->hotplug_active) {
3082                 if (intel_sdvo->port == PORT_B)
3083                         intel_encoder->hpd_pin = HPD_SDVO_B;
3084                 else
3085                         intel_encoder->hpd_pin = HPD_SDVO_C;
3086         }
3087
3088         /*
3089          * Cloning SDVO with anything is often impossible, since the SDVO
3090          * encoder can request a special input timing mode. And even if that's
3091          * not the case we have evidence that cloning a plain unscaled mode with
3092          * VGA doesn't really work. Furthermore the cloning flags are way too
3093          * simplistic anyway to express such constraints, so just give up on
3094          * cloning for SDVO encoders.
3095          */
3096         intel_sdvo->base.cloneable = 0;
3097
3098         intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo);
3099
3100         /* Set the input timing to the screen. Assume always input 0. */
3101         if (!intel_sdvo_set_target_input(intel_sdvo))
3102                 goto err_output;
3103
3104         if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
3105                                                     &intel_sdvo->pixel_clock_min,
3106                                                     &intel_sdvo->pixel_clock_max))
3107                 goto err_output;
3108
3109         DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
3110                         "clock range %dMHz - %dMHz, "
3111                         "input 1: %c, input 2: %c, "
3112                         "output 1: %c, output 2: %c\n",
3113                         SDVO_NAME(intel_sdvo),
3114                         intel_sdvo->caps.vendor_id, intel_sdvo->caps.device_id,
3115                         intel_sdvo->caps.device_rev_id,
3116                         intel_sdvo->pixel_clock_min / 1000,
3117                         intel_sdvo->pixel_clock_max / 1000,
3118                         (intel_sdvo->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
3119                         (intel_sdvo->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
3120                         /* check currently supported outputs */
3121                         intel_sdvo->caps.output_flags &
3122                         (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
3123                         intel_sdvo->caps.output_flags &
3124                         (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
3125         return true;
3126
3127 err_output:
3128         intel_sdvo_output_cleanup(intel_sdvo);
3129
3130 err:
3131         drm_encoder_cleanup(&intel_encoder->base);
3132         i2c_del_adapter(&intel_sdvo->ddc);
3133 err_i2c_bus:
3134         intel_sdvo_unselect_i2c_bus(intel_sdvo);
3135         kfree(intel_sdvo);
3136
3137         return false;
3138 }