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_device.h>
  30 #include <drm/radeon_drm.h>
  31
  32 #include <acpi/video.h>
  33
  34 #include "radeon.h"
  35 #include "radeon_atombios.h"
  36 #include "radeon_legacy_encoders.h"
  37 #include "atom.h"
  38
  39 static uint32_t radeon_encoder_clones(struct drm_encoder *encoder)
  40 {
  41         struct drm_device *dev = encoder->dev;
  42         struct radeon_device *rdev = dev->dev_private;
  43         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
  44         struct drm_encoder *clone_encoder;
  45         uint32_t index_mask = 0;
  46         int count;
  47
  48         /* DIG routing gets problematic */
  49         if (rdev->family >= CHIP_R600)
  50                 return index_mask;
  51         /* LVDS/TV are too wacky */
  52         if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT)
  53                 return index_mask;
  54         /* DVO requires 2x ppll clocks depending on tmds chip */
  55         if (radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT)
  56                 return index_mask;
  57
  58         count = -1;
  59         list_for_each_entry(clone_encoder, &dev->mode_config.encoder_list, head) {
  60                 struct radeon_encoder *radeon_clone = to_radeon_encoder(clone_encoder);
  61                 count++;
  62
  63                 if (clone_encoder == encoder)
  64                         continue;
  65                 if (radeon_clone->devices & (ATOM_DEVICE_LCD_SUPPORT))
  66                         continue;
  67                 if (radeon_clone->devices & ATOM_DEVICE_DFP2_SUPPORT)
  68                         continue;
  69                 else
  70                         index_mask |= (1 << count);
  71         }
  72         return index_mask;
  73 }
  74
  75 void radeon_setup_encoder_clones(struct drm_device *dev)
  76 {
  77         struct drm_encoder *encoder;
  78
  79         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
  80                 encoder->possible_clones = radeon_encoder_clones(encoder);
  81         }
  82 }
  83
  84 uint32_t
  85 radeon_get_encoder_enum(struct drm_device *dev, uint32_t supported_device, uint8_t dac)
  86 {
  87         struct radeon_device *rdev = dev->dev_private;
  88         uint32_t ret = 0;
  89
  90         switch (supported_device) {
  91         case ATOM_DEVICE_CRT1_SUPPORT:
  92         case ATOM_DEVICE_TV1_SUPPORT:
  93         case ATOM_DEVICE_TV2_SUPPORT:
  94         case ATOM_DEVICE_CRT2_SUPPORT:
  95         case ATOM_DEVICE_CV_SUPPORT:
  96                 switch (dac) {
  97                 case 1: /* dac a */
  98                         if ((rdev->family == CHIP_RS300) ||
  99                             (rdev->family == CHIP_RS400) ||
 100                             (rdev->family == CHIP_RS480))
 101                                 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
 102                         else if (ASIC_IS_AVIVO(rdev))
 103                                 ret = ENCODER_INTERNAL_KLDSCP_DAC1_ENUM_ID1;
 104                         else
 105                                 ret = ENCODER_INTERNAL_DAC1_ENUM_ID1;
 106                         break;
 107                 case 2: /* dac b */
 108                         if (ASIC_IS_AVIVO(rdev))
 109                                 ret = ENCODER_INTERNAL_KLDSCP_DAC2_ENUM_ID1;
 110                         else {
 111                                 /*if (rdev->family == CHIP_R200)
 112                                   ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 113                                   else*/
 114                                 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
 115                         }
 116                         break;
 117                 case 3: /* external dac */
 118                         if (ASIC_IS_AVIVO(rdev))
 119                                 ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
 120                         else
 121                                 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 122                         break;
 123                 }
 124                 break;
 125         case ATOM_DEVICE_LCD1_SUPPORT:
 126                 if (ASIC_IS_AVIVO(rdev))
 127                         ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
 128                 else
 129                         ret = ENCODER_INTERNAL_LVDS_ENUM_ID1;
 130                 break;
 131         case ATOM_DEVICE_DFP1_SUPPORT:
 132                 if ((rdev->family == CHIP_RS300) ||
 133                     (rdev->family == CHIP_RS400) ||
 134                     (rdev->family == CHIP_RS480))
 135                         ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 136                 else if (ASIC_IS_AVIVO(rdev))
 137                         ret = ENCODER_INTERNAL_KLDSCP_TMDS1_ENUM_ID1;
 138                 else
 139                         ret = ENCODER_INTERNAL_TMDS1_ENUM_ID1;
 140                 break;
 141         case ATOM_DEVICE_LCD2_SUPPORT:
 142         case ATOM_DEVICE_DFP2_SUPPORT:
 143                 if ((rdev->family == CHIP_RS600) ||
 144                     (rdev->family == CHIP_RS690) ||
 145                     (rdev->family == CHIP_RS740))
 146                         ret = ENCODER_INTERNAL_DDI_ENUM_ID1;
 147                 else if (ASIC_IS_AVIVO(rdev))
 148                         ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
 149                 else
 150                         ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 151                 break;
 152         case ATOM_DEVICE_DFP3_SUPPORT:
 153                 ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
 154                 break;
 155         }
 156
 157         return ret;
 158 }
 159
 160 static void radeon_encoder_add_backlight(struct radeon_encoder *radeon_encoder,
 161                                          struct drm_connector *connector)
 162 {
 163         struct drm_device *dev = radeon_encoder->base.dev;
 164         struct radeon_device *rdev = dev->dev_private;
 165         bool use_bl = false;
 166
 167         if (!(radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)))
 168                 return;
 169
 170         if (radeon_backlight == 0) {
 171                 use_bl = false;
 172         } else if (radeon_backlight == 1) {
 173                 use_bl = true;
 174         } else if (radeon_backlight == -1) {
 175                 /* Quirks */
 176                 /* Amilo Xi 2550 only works with acpi bl */
 177                 if ((rdev->pdev->device == 0x9583) &&
 178                     (rdev->pdev->subsystem_vendor == 0x1734) &&
 179                     (rdev->pdev->subsystem_device == 0x1107))
 180                         use_bl = false;
 181 /* Older PPC macs use on-GPU backlight controller */
 182 #ifndef CONFIG_PPC_PMAC
 183                 /* disable native backlight control on older asics */
 184                 else if (rdev->family < CHIP_R600)
 185                         use_bl = false;
 186 #endif
 187                 else
 188                         use_bl = true;
 189         }
 190
 191         if (use_bl) {
 192                 if (rdev->is_atom_bios)
 193                         radeon_atom_backlight_init(radeon_encoder, connector);
 194                 else
 195                         radeon_legacy_backlight_init(radeon_encoder, connector);
 196         }
 197
 198         /*
 199          * If there is no native backlight device (which may happen even when
 200          * use_bl==true) try registering an ACPI video backlight device instead.
 201          */
 202         if (!rdev->mode_info.bl_encoder)
 203                 acpi_video_register_backlight();
 204 }
 205
 206 void
 207 radeon_link_encoder_connector(struct drm_device *dev)
 208 {
 209         struct drm_connector *connector;
 210         struct radeon_connector *radeon_connector;
 211         struct drm_encoder *encoder;
 212         struct radeon_encoder *radeon_encoder;
 213
 214         /* walk the list and link encoders to connectors */
 215         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 216                 radeon_connector = to_radeon_connector(connector);
 217                 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 218                         radeon_encoder = to_radeon_encoder(encoder);
 219                         if (radeon_encoder->devices & radeon_connector->devices) {
 220                                 drm_connector_attach_encoder(connector, encoder);
 221                                 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
 222                                         radeon_encoder_add_backlight(radeon_encoder, connector);
 223                         }
 224                 }
 225         }
 226 }
 227
 228 void radeon_encoder_set_active_device(struct drm_encoder *encoder)
 229 {
 230         struct drm_device *dev = encoder->dev;
 231         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 232         struct drm_connector *connector;
 233
 234         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 235                 if (connector->encoder == encoder) {
 236                         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 237                         radeon_encoder->active_device = radeon_encoder->devices & radeon_connector->devices;
 238                         DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n",
 239                                   radeon_encoder->active_device, radeon_encoder->devices,
 240                                   radeon_connector->devices, encoder->encoder_type);
 241                 }
 242         }
 243 }
 244
 245 struct drm_connector *
 246 radeon_get_connector_for_encoder(struct drm_encoder *encoder)
 247 {
 248         struct drm_device *dev = encoder->dev;
 249         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 250         struct drm_connector *connector;
 251         struct radeon_connector *radeon_connector;
 252
 253         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 254                 radeon_connector = to_radeon_connector(connector);
 255                 if (radeon_encoder->active_device & radeon_connector->devices)
 256                         return connector;
 257         }
 258         return NULL;
 259 }
 260
 261 struct drm_connector *
 262 radeon_get_connector_for_encoder_init(struct drm_encoder *encoder)
 263 {
 264         struct drm_device *dev = encoder->dev;
 265         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 266         struct drm_connector *connector;
 267         struct radeon_connector *radeon_connector;
 268
 269         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 270                 radeon_connector = to_radeon_connector(connector);
 271                 if (radeon_encoder->devices & radeon_connector->devices)
 272                         return connector;
 273         }
 274         return NULL;
 275 }
 276
 277 struct drm_encoder *radeon_get_external_encoder(struct drm_encoder *encoder)
 278 {
 279         struct drm_device *dev = encoder->dev;
 280         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 281         struct drm_encoder *other_encoder;
 282         struct radeon_encoder *other_radeon_encoder;
 283
 284         if (radeon_encoder->is_ext_encoder)
 285                 return NULL;
 286
 287         list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) {
 288                 if (other_encoder == encoder)
 289                         continue;
 290                 other_radeon_encoder = to_radeon_encoder(other_encoder);
 291                 if (other_radeon_encoder->is_ext_encoder &&
 292                     (radeon_encoder->devices & other_radeon_encoder->devices))
 293                         return other_encoder;
 294         }
 295         return NULL;
 296 }
 297
 298 u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder)
 299 {
 300         struct drm_encoder *other_encoder = radeon_get_external_encoder(encoder);
 301
 302         if (other_encoder) {
 303                 struct radeon_encoder *radeon_encoder = to_radeon_encoder(other_encoder);
 304
 305                 switch (radeon_encoder->encoder_id) {
 306                 case ENCODER_OBJECT_ID_TRAVIS:
 307                 case ENCODER_OBJECT_ID_NUTMEG:
 308                         return radeon_encoder->encoder_id;
 309                 default:
 310                         return ENCODER_OBJECT_ID_NONE;
 311                 }
 312         }
 313         return ENCODER_OBJECT_ID_NONE;
 314 }
 315
 316 void radeon_panel_mode_fixup(struct drm_encoder *encoder,
 317                              struct drm_display_mode *adjusted_mode)
 318 {
 319         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 320         struct drm_device *dev = encoder->dev;
 321         struct radeon_device *rdev = dev->dev_private;
 322         struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
 323         unsigned hblank = native_mode->htotal - native_mode->hdisplay;
 324         unsigned vblank = native_mode->vtotal - native_mode->vdisplay;
 325         unsigned hover = native_mode->hsync_start - native_mode->hdisplay;
 326         unsigned vover = native_mode->vsync_start - native_mode->vdisplay;
 327         unsigned hsync_width = native_mode->hsync_end - native_mode->hsync_start;
 328         unsigned vsync_width = native_mode->vsync_end - native_mode->vsync_start;
 329
 330         adjusted_mode->clock = native_mode->clock;
 331         adjusted_mode->flags = native_mode->flags;
 332
 333         if (ASIC_IS_AVIVO(rdev)) {
 334                 adjusted_mode->hdisplay = native_mode->hdisplay;
 335                 adjusted_mode->vdisplay = native_mode->vdisplay;
 336         }
 337
 338         adjusted_mode->htotal = native_mode->hdisplay + hblank;
 339         adjusted_mode->hsync_start = native_mode->hdisplay + hover;
 340         adjusted_mode->hsync_end = adjusted_mode->hsync_start + hsync_width;
 341
 342         adjusted_mode->vtotal = native_mode->vdisplay + vblank;
 343         adjusted_mode->vsync_start = native_mode->vdisplay + vover;
 344         adjusted_mode->vsync_end = adjusted_mode->vsync_start + vsync_width;
 345
 346         drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
 347
 348         if (ASIC_IS_AVIVO(rdev)) {
 349                 adjusted_mode->crtc_hdisplay = native_mode->hdisplay;
 350                 adjusted_mode->crtc_vdisplay = native_mode->vdisplay;
 351         }
 352
 353         adjusted_mode->crtc_htotal = adjusted_mode->crtc_hdisplay + hblank;
 354         adjusted_mode->crtc_hsync_start = adjusted_mode->crtc_hdisplay + hover;
 355         adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width;
 356
 357         adjusted_mode->crtc_vtotal = adjusted_mode->crtc_vdisplay + vblank;
 358         adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + vover;
 359         adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width;
 360
 361 }
 362
 363 bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
 364                                     u32 pixel_clock)
 365 {
 366         struct drm_device *dev = encoder->dev;
 367         struct radeon_device *rdev = dev->dev_private;
 368         struct drm_connector *connector;
 369         struct radeon_connector *radeon_connector;
 370         struct radeon_connector_atom_dig *dig_connector;
 371
 372         connector = radeon_get_connector_for_encoder(encoder);
 373         /* if we don't have an active device yet, just use one of
 374          * the connectors tied to the encoder.
 375          */
 376         if (!connector)
 377                 connector = radeon_get_connector_for_encoder_init(encoder);
 378         radeon_connector = to_radeon_connector(connector);
 379
 380         switch (connector->connector_type) {
 381         case DRM_MODE_CONNECTOR_DVII:
 382         case DRM_MODE_CONNECTOR_HDMIB:
 383                 if (radeon_connector->use_digital) {
 384                         /* HDMI 1.3 supports up to 340 Mhz over single link */
 385                         if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
 386                                 if (pixel_clock > 340000)
 387                                         return true;
 388                                 else
 389                                         return false;
 390                         } else {
 391                                 if (pixel_clock > 165000)
 392                                         return true;
 393                                 else
 394                                         return false;
 395                         }
 396                 } else
 397                         return false;
 398         case DRM_MODE_CONNECTOR_DVID:
 399         case DRM_MODE_CONNECTOR_HDMIA:
 400         case DRM_MODE_CONNECTOR_DisplayPort:
 401                 dig_connector = radeon_connector->con_priv;
 402                 if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 403                     (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
 404                         return false;
 405                 else {
 406                         /* HDMI 1.3 supports up to 340 Mhz over single link */
 407                         if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
 408                                 if (pixel_clock > 340000)
 409                                         return true;
 410                                 else
 411                                         return false;
 412                         } else {
 413                                 if (pixel_clock > 165000)
 414                                         return true;
 415                                 else
 416                                         return false;
 417                         }
 418                 }
 419         default:
 420                 return false;
 421         }
 422 }
 423
 424 bool radeon_encoder_is_digital(struct drm_encoder *encoder)
 425 {
 426         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 427         switch (radeon_encoder->encoder_id) {
 428         case ENCODER_OBJECT_ID_INTERNAL_LVDS:
 429         case ENCODER_OBJECT_ID_INTERNAL_TMDS1:
 430         case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
 431         case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
 432         case ENCODER_OBJECT_ID_INTERNAL_DVO1:
 433         case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
 434         case ENCODER_OBJECT_ID_INTERNAL_DDI:
 435         case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
 436         case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
 437         case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
 438         case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
 439         case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3:
 440                 return true;
 441         default:
 442                 return false;
 443         }
 444 }