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