drivers/gpu/drm/radeon/radeon_encoders.c

   1 /*
   2  * Copyright 2007-8 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21  * OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors: Dave Airlie
  24  *          Alex Deucher
  25  */
  26
  27 #include <linux/pci.h>
  28
  29 #include <drm/drm_crtc_helper.h>
  30 #include <drm/drm_device.h>
  31 #include <drm/radeon_drm.h>
  32
  33 #include "radeon.h"
  34 #include "atom.h"
  35
  36 extern void
  37 radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
  38                              struct drm_connector *drm_connector);
  39 extern void
  40 radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
  41                            struct drm_connector *drm_connector);
  42
  43
  44 static uint32_t radeon_encoder_clones(struct drm_encoder *encoder)
  45 {
  46         struct drm_device *dev = encoder->dev;
  47         struct radeon_device *rdev = dev->dev_private;
  48         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
  49         struct drm_encoder *clone_encoder;
  50         uint32_t index_mask = 0;
  51         int count;
  52
  53         /* DIG routing gets problematic */
  54         if (rdev->family >= CHIP_R600)
  55                 return index_mask;
  56         /* LVDS/TV are too wacky */
  57         if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT)
  58                 return index_mask;
  59         /* DVO requires 2x ppll clocks depending on tmds chip */
  60         if (radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT)
  61                 return index_mask;
  62
  63         count = -1;
  64         list_for_each_entry(clone_encoder, &dev->mode_config.encoder_list, head) {
  65                 struct radeon_encoder *radeon_clone = to_radeon_encoder(clone_encoder);
  66                 count++;
  67
  68                 if (clone_encoder == encoder)
  69                         continue;
  70                 if (radeon_clone->devices & (ATOM_DEVICE_LCD_SUPPORT))
  71                         continue;
  72                 if (radeon_clone->devices & ATOM_DEVICE_DFP2_SUPPORT)
  73                         continue;
  74                 else
  75                         index_mask |= (1 << count);
  76         }
  77         return index_mask;
  78 }
  79
  80 void radeon_setup_encoder_clones(struct drm_device *dev)
  81 {
  82         struct drm_encoder *encoder;
  83
  84         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
  85                 encoder->possible_clones = radeon_encoder_clones(encoder);
  86         }
  87 }
  88
  89 uint32_t
  90 radeon_get_encoder_enum(struct drm_device *dev, uint32_t supported_device, uint8_t dac)
  91 {
  92         struct radeon_device *rdev = dev->dev_private;
  93         uint32_t ret = 0;
  94
  95         switch (supported_device) {
  96         case ATOM_DEVICE_CRT1_SUPPORT:
  97         case ATOM_DEVICE_TV1_SUPPORT:
  98         case ATOM_DEVICE_TV2_SUPPORT:
  99         case ATOM_DEVICE_CRT2_SUPPORT:
 100         case ATOM_DEVICE_CV_SUPPORT:
 101                 switch (dac) {
 102                 case 1: /* dac a */
 103                         if ((rdev->family == CHIP_RS300) ||
 104                             (rdev->family == CHIP_RS400) ||
 105                             (rdev->family == CHIP_RS480))
 106                                 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
 107                         else if (ASIC_IS_AVIVO(rdev))
 108                                 ret = ENCODER_INTERNAL_KLDSCP_DAC1_ENUM_ID1;
 109                         else
 110                                 ret = ENCODER_INTERNAL_DAC1_ENUM_ID1;
 111                         break;
 112                 case 2: /* dac b */
 113                         if (ASIC_IS_AVIVO(rdev))
 114                                 ret = ENCODER_INTERNAL_KLDSCP_DAC2_ENUM_ID1;
 115                         else {
 116                                 /*if (rdev->family == CHIP_R200)
 117                                   ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 118                                   else*/
 119                                 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
 120                         }
 121                         break;
 122                 case 3: /* external dac */
 123                         if (ASIC_IS_AVIVO(rdev))
 124                                 ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
 125                         else
 126                                 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 127                         break;
 128                 }
 129                 break;
 130         case ATOM_DEVICE_LCD1_SUPPORT:
 131                 if (ASIC_IS_AVIVO(rdev))
 132                         ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
 133                 else
 134                         ret = ENCODER_INTERNAL_LVDS_ENUM_ID1;
 135                 break;
 136         case ATOM_DEVICE_DFP1_SUPPORT:
 137                 if ((rdev->family == CHIP_RS300) ||
 138                     (rdev->family == CHIP_RS400) ||
 139                     (rdev->family == CHIP_RS480))
 140                         ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 141                 else if (ASIC_IS_AVIVO(rdev))
 142                         ret = ENCODER_INTERNAL_KLDSCP_TMDS1_ENUM_ID1;
 143                 else
 144                         ret = ENCODER_INTERNAL_TMDS1_ENUM_ID1;
 145                 break;
 146         case ATOM_DEVICE_LCD2_SUPPORT:
 147         case ATOM_DEVICE_DFP2_SUPPORT:
 148                 if ((rdev->family == CHIP_RS600) ||
 149                     (rdev->family == CHIP_RS690) ||
 150                     (rdev->family == CHIP_RS740))
 151                         ret = ENCODER_INTERNAL_DDI_ENUM_ID1;
 152                 else if (ASIC_IS_AVIVO(rdev))
 153                         ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
 154                 else
 155                         ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 156                 break;
 157         case ATOM_DEVICE_DFP3_SUPPORT:
 158                 ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
 159                 break;
 160         }
 161
 162         return ret;
 163 }
 164
 165 static void radeon_encoder_add_backlight(struct radeon_encoder *radeon_encoder,
 166                                          struct drm_connector *connector)
 167 {
 168         struct drm_device *dev = radeon_encoder->base.dev;
 169         struct radeon_device *rdev = dev->dev_private;
 170         bool use_bl = false;
 171
 172         if (!(radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)))
 173                 return;
 174
 175         if (radeon_backlight == 0) {
 176                 return;
 177         } else if (radeon_backlight == 1) {
 178                 use_bl = true;
 179         } else if (radeon_backlight == -1) {
 180                 /* Quirks */
 181                 /* Amilo Xi 2550 only works with acpi bl */
 182                 if ((rdev->pdev->device == 0x9583) &&
 183                     (rdev->pdev->subsystem_vendor == 0x1734) &&
 184                     (rdev->pdev->subsystem_device == 0x1107))
 185                         use_bl = false;
 186 /* Older PPC macs use on-GPU backlight controller */
 187 #ifndef CONFIG_PPC_PMAC
 188                 /* disable native backlight control on older asics */
 189                 else if (rdev->family < CHIP_R600)
 190                         use_bl = false;
 191 #endif
 192                 else
 193                         use_bl = true;
 194         }
 195
 196         if (use_bl) {
 197                 if (rdev->is_atom_bios)
 198                         radeon_atom_backlight_init(radeon_encoder, connector);
 199                 else
 200                         radeon_legacy_backlight_init(radeon_encoder, connector);
 201         }
 202 }
 203
 204 void
 205 radeon_link_encoder_connector(struct drm_device *dev)
 206 {
 207         struct drm_connector *connector;
 208         struct radeon_connector *radeon_connector;
 209         struct drm_encoder *encoder;
 210         struct radeon_encoder *radeon_encoder;
 211
 212         /* walk the list and link encoders to connectors */
 213         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 214                 radeon_connector = to_radeon_connector(connector);
 215                 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 216                         radeon_encoder = to_radeon_encoder(encoder);
 217                         if (radeon_encoder->devices & radeon_connector->devices) {
 218                                 drm_connector_attach_encoder(connector, encoder);
 219                                 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
 220                                         radeon_encoder_add_backlight(radeon_encoder, connector);
 221                         }
 222                 }
 223         }
 224 }
 225
 226 void radeon_encoder_set_active_device(struct drm_encoder *encoder)
 227 {
 228         struct drm_device *dev = encoder->dev;
 229         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 230         struct drm_connector *connector;
 231
 232         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 233                 if (connector->encoder == encoder) {
 234                         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 235                         radeon_encoder->active_device = radeon_encoder->devices & radeon_connector->devices;
 236                         DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n",
 237                                   radeon_encoder->active_device, radeon_encoder->devices,
 238                                   radeon_connector->devices, encoder->encoder_type);
 239                 }
 240         }
 241 }
 242
 243 struct drm_connector *
 244 radeon_get_connector_for_encoder(struct drm_encoder *encoder)
 245 {
 246         struct drm_device *dev = encoder->dev;
 247         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 248         struct drm_connector *connector;
 249         struct radeon_connector *radeon_connector;
 250
 251         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 252                 radeon_connector = to_radeon_connector(connector);
 253                 if (radeon_encoder->is_mst_encoder) {
 254                         struct radeon_encoder_mst *mst_enc;
 255
 256                         if (!radeon_connector->is_mst_connector)
 257                                 continue;
 258
 259                         mst_enc = radeon_encoder->enc_priv;
 260                         if (mst_enc->connector == radeon_connector->mst_port)
 261                                 return connector;
 262                 } else if (radeon_encoder->active_device & radeon_connector->devices)
 263                         return connector;
 264         }
 265         return NULL;
 266 }
 267
 268 struct drm_connector *
 269 radeon_get_connector_for_encoder_init(struct drm_encoder *encoder)
 270 {
 271         struct drm_device *dev = encoder->dev;
 272         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 273         struct drm_connector *connector;
 274         struct radeon_connector *radeon_connector;
 275
 276         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 277                 radeon_connector = to_radeon_connector(connector);
 278                 if (radeon_encoder->devices & radeon_connector->devices)
 279                         return connector;
 280         }
 281         return NULL;
 282 }
 283
 284 struct drm_encoder *radeon_get_external_encoder(struct drm_encoder *encoder)
 285 {
 286         struct drm_device *dev = encoder->dev;
 287         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 288         struct drm_encoder *other_encoder;
 289         struct radeon_encoder *other_radeon_encoder;
 290
 291         if (radeon_encoder->is_ext_encoder)
 292                 return NULL;
 293
 294         list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) {
 295                 if (other_encoder == encoder)
 296                         continue;
 297                 other_radeon_encoder = to_radeon_encoder(other_encoder);
 298                 if (other_radeon_encoder->is_ext_encoder &&
 299                     (radeon_encoder->devices & other_radeon_encoder->devices))
 300                         return other_encoder;
 301         }
 302         return NULL;
 303 }
 304
 305 u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder)
 306 {
 307         struct drm_encoder *other_encoder = radeon_get_external_encoder(encoder);
 308
 309         if (other_encoder) {
 310                 struct radeon_encoder *radeon_encoder = to_radeon_encoder(other_encoder);
 311
 312                 switch (radeon_encoder->encoder_id) {
 313                 case ENCODER_OBJECT_ID_TRAVIS:
 314                 case ENCODER_OBJECT_ID_NUTMEG:
 315                         return radeon_encoder->encoder_id;
 316                 default:
 317                         return ENCODER_OBJECT_ID_NONE;
 318                 }
 319         }
 320         return ENCODER_OBJECT_ID_NONE;
 321 }
 322
 323 void radeon_panel_mode_fixup(struct drm_encoder *encoder,
 324                              struct drm_display_mode *adjusted_mode)
 325 {
 326         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 327         struct drm_device *dev = encoder->dev;
 328         struct radeon_device *rdev = dev->dev_private;
 329         struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
 330         unsigned hblank = native_mode->htotal - native_mode->hdisplay;
 331         unsigned vblank = native_mode->vtotal - native_mode->vdisplay;
 332         unsigned hover = native_mode->hsync_start - native_mode->hdisplay;
 333         unsigned vover = native_mode->vsync_start - native_mode->vdisplay;
 334         unsigned hsync_width = native_mode->hsync_end - native_mode->hsync_start;
 335         unsigned vsync_width = native_mode->vsync_end - native_mode->vsync_start;
 336
 337         adjusted_mode->clock = native_mode->clock;
 338         adjusted_mode->flags = native_mode->flags;
 339
 340         if (ASIC_IS_AVIVO(rdev)) {
 341                 adjusted_mode->hdisplay = native_mode->hdisplay;
 342                 adjusted_mode->vdisplay = native_mode->vdisplay;
 343         }
 344
 345         adjusted_mode->htotal = native_mode->hdisplay + hblank;
 346         adjusted_mode->hsync_start = native_mode->hdisplay + hover;
 347         adjusted_mode->hsync_end = adjusted_mode->hsync_start + hsync_width;
 348
 349         adjusted_mode->vtotal = native_mode->vdisplay + vblank;
 350         adjusted_mode->vsync_start = native_mode->vdisplay + vover;
 351         adjusted_mode->vsync_end = adjusted_mode->vsync_start + vsync_width;
 352
 353         drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
 354
 355         if (ASIC_IS_AVIVO(rdev)) {
 356                 adjusted_mode->crtc_hdisplay = native_mode->hdisplay;
 357                 adjusted_mode->crtc_vdisplay = native_mode->vdisplay;
 358         }
 359
 360         adjusted_mode->crtc_htotal = adjusted_mode->crtc_hdisplay + hblank;
 361         adjusted_mode->crtc_hsync_start = adjusted_mode->crtc_hdisplay + hover;
 362         adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width;
 363
 364         adjusted_mode->crtc_vtotal = adjusted_mode->crtc_vdisplay + vblank;
 365         adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + vover;
 366         adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width;
 367
 368 }
 369
 370 bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
 371                                     u32 pixel_clock)
 372 {
 373         struct drm_device *dev = encoder->dev;
 374         struct radeon_device *rdev = dev->dev_private;
 375         struct drm_connector *connector;
 376         struct radeon_connector *radeon_connector;
 377         struct radeon_connector_atom_dig *dig_connector;
 378
 379         connector = radeon_get_connector_for_encoder(encoder);
 380         /* if we don't have an active device yet, just use one of
 381          * the connectors tied to the encoder.
 382          */
 383         if (!connector)
 384                 connector = radeon_get_connector_for_encoder_init(encoder);
 385         radeon_connector = to_radeon_connector(connector);
 386
 387         switch (connector->connector_type) {
 388         case DRM_MODE_CONNECTOR_DVII:
 389         case DRM_MODE_CONNECTOR_HDMIB:
 390                 if (radeon_connector->use_digital) {
 391                         /* HDMI 1.3 supports up to 340 Mhz over single link */
 392                         if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
 393                                 if (pixel_clock > 340000)
 394                                         return true;
 395                                 else
 396                                         return false;
 397                         } else {
 398                                 if (pixel_clock > 165000)
 399                                         return true;
 400                                 else
 401                                         return false;
 402                         }
 403                 } else
 404                         return false;
 405         case DRM_MODE_CONNECTOR_DVID:
 406         case DRM_MODE_CONNECTOR_HDMIA:
 407         case DRM_MODE_CONNECTOR_DisplayPort:
 408                 if (radeon_connector->is_mst_connector)
 409                         return false;
 410
 411                 dig_connector = radeon_connector->con_priv;
 412                 if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 413                     (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
 414                         return false;
 415                 else {
 416                         /* HDMI 1.3 supports up to 340 Mhz over single link */
 417                         if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
 418                                 if (pixel_clock > 340000)
 419                                         return true;
 420                                 else
 421                                         return false;
 422                         } else {
 423                                 if (pixel_clock > 165000)
 424                                         return true;
 425                                 else
 426                                         return false;
 427                         }
 428                 }
 429         default:
 430                 return false;
 431         }
 432 }
 433
 434 bool radeon_encoder_is_digital(struct drm_encoder *encoder)
 435 {
 436         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 437         switch (radeon_encoder->encoder_id) {
 438         case ENCODER_OBJECT_ID_INTERNAL_LVDS:
 439         case ENCODER_OBJECT_ID_INTERNAL_TMDS1:
 440         case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
 441         case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
 442         case ENCODER_OBJECT_ID_INTERNAL_DVO1:
 443         case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
 444         case ENCODER_OBJECT_ID_INTERNAL_DDI:
 445         case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
 446         case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
 447         case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
 448         case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
 449         case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3:
 450                 return true;
 451         default:
 452                 return false;
 453         }
 454 }