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