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 void
 155 radeon_link_encoder_connector(struct drm_device *dev)
 156 {
 157         struct radeon_device *rdev = dev->dev_private;
 158         struct drm_connector *connector;
 159         struct radeon_connector *radeon_connector;
 160         struct drm_encoder *encoder;
 161         struct radeon_encoder *radeon_encoder;
 162
 163         /* walk the list and link encoders to connectors */
 164         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 165                 radeon_connector = to_radeon_connector(connector);
 166                 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 167                         radeon_encoder = to_radeon_encoder(encoder);
 168                         if (radeon_encoder->devices & radeon_connector->devices) {
 169                                 drm_mode_connector_attach_encoder(connector, encoder);
 170                                 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
 171                                         if (rdev->is_atom_bios)
 172                                                 radeon_atom_backlight_init(radeon_encoder, connector);
 173                                         else
 174                                                 radeon_legacy_backlight_init(radeon_encoder, connector);
 175                                         rdev->mode_info.bl_encoder = radeon_encoder;
 176                                 }
 177                         }
 178                 }
 179         }
 180 }
 181
 182 void radeon_encoder_set_active_device(struct drm_encoder *encoder)
 183 {
 184         struct drm_device *dev = encoder->dev;
 185         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 186         struct drm_connector *connector;
 187
 188         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 189                 if (connector->encoder == encoder) {
 190                         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 191                         radeon_encoder->active_device = radeon_encoder->devices & radeon_connector->devices;
 192                         DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n",
 193                                   radeon_encoder->active_device, radeon_encoder->devices,
 194                                   radeon_connector->devices, encoder->encoder_type);
 195                 }
 196         }
 197 }
 198
 199 struct drm_connector *
 200 radeon_get_connector_for_encoder(struct drm_encoder *encoder)
 201 {
 202         struct drm_device *dev = encoder->dev;
 203         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 204         struct drm_connector *connector;
 205         struct radeon_connector *radeon_connector;
 206
 207         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 208                 radeon_connector = to_radeon_connector(connector);
 209                 if (radeon_encoder->active_device & radeon_connector->devices)
 210                         return connector;
 211         }
 212         return NULL;
 213 }
 214
 215 struct drm_connector *
 216 radeon_get_connector_for_encoder_init(struct drm_encoder *encoder)
 217 {
 218         struct drm_device *dev = encoder->dev;
 219         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 220         struct drm_connector *connector;
 221         struct radeon_connector *radeon_connector;
 222
 223         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 224                 radeon_connector = to_radeon_connector(connector);
 225                 if (radeon_encoder->devices & radeon_connector->devices)
 226                         return connector;
 227         }
 228         return NULL;
 229 }
 230
 231 struct drm_encoder *radeon_get_external_encoder(struct drm_encoder *encoder)
 232 {
 233         struct drm_device *dev = encoder->dev;
 234         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 235         struct drm_encoder *other_encoder;
 236         struct radeon_encoder *other_radeon_encoder;
 237
 238         if (radeon_encoder->is_ext_encoder)
 239                 return NULL;
 240
 241         list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) {
 242                 if (other_encoder == encoder)
 243                         continue;
 244                 other_radeon_encoder = to_radeon_encoder(other_encoder);
 245                 if (other_radeon_encoder->is_ext_encoder &&
 246                     (radeon_encoder->devices & other_radeon_encoder->devices))
 247                         return other_encoder;
 248         }
 249         return NULL;
 250 }
 251
 252 u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder)
 253 {
 254         struct drm_encoder *other_encoder = radeon_get_external_encoder(encoder);
 255
 256         if (other_encoder) {
 257                 struct radeon_encoder *radeon_encoder = to_radeon_encoder(other_encoder);
 258
 259                 switch (radeon_encoder->encoder_id) {
 260                 case ENCODER_OBJECT_ID_TRAVIS:
 261                 case ENCODER_OBJECT_ID_NUTMEG:
 262                         return radeon_encoder->encoder_id;
 263                 default:
 264                         return ENCODER_OBJECT_ID_NONE;
 265                 }
 266         }
 267         return ENCODER_OBJECT_ID_NONE;
 268 }
 269
 270 void radeon_panel_mode_fixup(struct drm_encoder *encoder,
 271                              struct drm_display_mode *adjusted_mode)
 272 {
 273         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 274         struct drm_device *dev = encoder->dev;
 275         struct radeon_device *rdev = dev->dev_private;
 276         struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
 277         unsigned hblank = native_mode->htotal - native_mode->hdisplay;
 278         unsigned vblank = native_mode->vtotal - native_mode->vdisplay;
 279         unsigned hover = native_mode->hsync_start - native_mode->hdisplay;
 280         unsigned vover = native_mode->vsync_start - native_mode->vdisplay;
 281         unsigned hsync_width = native_mode->hsync_end - native_mode->hsync_start;
 282         unsigned vsync_width = native_mode->vsync_end - native_mode->vsync_start;
 283
 284         adjusted_mode->clock = native_mode->clock;
 285         adjusted_mode->flags = native_mode->flags;
 286
 287         if (ASIC_IS_AVIVO(rdev)) {
 288                 adjusted_mode->hdisplay = native_mode->hdisplay;
 289                 adjusted_mode->vdisplay = native_mode->vdisplay;
 290         }
 291
 292         adjusted_mode->htotal = native_mode->hdisplay + hblank;
 293         adjusted_mode->hsync_start = native_mode->hdisplay + hover;
 294         adjusted_mode->hsync_end = adjusted_mode->hsync_start + hsync_width;
 295
 296         adjusted_mode->vtotal = native_mode->vdisplay + vblank;
 297         adjusted_mode->vsync_start = native_mode->vdisplay + vover;
 298         adjusted_mode->vsync_end = adjusted_mode->vsync_start + vsync_width;
 299
 300         drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
 301
 302         if (ASIC_IS_AVIVO(rdev)) {
 303                 adjusted_mode->crtc_hdisplay = native_mode->hdisplay;
 304                 adjusted_mode->crtc_vdisplay = native_mode->vdisplay;
 305         }
 306
 307         adjusted_mode->crtc_htotal = adjusted_mode->crtc_hdisplay + hblank;
 308         adjusted_mode->crtc_hsync_start = adjusted_mode->crtc_hdisplay + hover;
 309         adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width;
 310
 311         adjusted_mode->crtc_vtotal = adjusted_mode->crtc_vdisplay + vblank;
 312         adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + vover;
 313         adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width;
 314
 315 }
 316
 317 bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
 318                                     u32 pixel_clock)
 319 {
 320         struct drm_device *dev = encoder->dev;
 321         struct radeon_device *rdev = dev->dev_private;
 322         struct drm_connector *connector;
 323         struct radeon_connector *radeon_connector;
 324         struct radeon_connector_atom_dig *dig_connector;
 325
 326         connector = radeon_get_connector_for_encoder(encoder);
 327         /* if we don't have an active device yet, just use one of
 328          * the connectors tied to the encoder.
 329          */
 330         if (!connector)
 331                 connector = radeon_get_connector_for_encoder_init(encoder);
 332         radeon_connector = to_radeon_connector(connector);
 333
 334         switch (connector->connector_type) {
 335         case DRM_MODE_CONNECTOR_DVII:
 336         case DRM_MODE_CONNECTOR_HDMIB:
 337                 if (radeon_connector->use_digital) {
 338                         /* HDMI 1.3 supports up to 340 Mhz over single link */
 339                         if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {
 340                                 if (pixel_clock > 340000)
 341                                         return true;
 342                                 else
 343                                         return false;
 344                         } else {
 345                                 if (pixel_clock > 165000)
 346                                         return true;
 347                                 else
 348                                         return false;
 349                         }
 350                 } else
 351                         return false;
 352         case DRM_MODE_CONNECTOR_DVID:
 353         case DRM_MODE_CONNECTOR_HDMIA:
 354         case DRM_MODE_CONNECTOR_DisplayPort:
 355                 dig_connector = radeon_connector->con_priv;
 356                 if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 357                     (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
 358                         return false;
 359                 else {
 360                         /* HDMI 1.3 supports up to 340 Mhz over single link */
 361                         if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {
 362                                 if (pixel_clock > 340000)
 363                                         return true;
 364                                 else
 365                                         return false;
 366                         } else {
 367                                 if (pixel_clock > 165000)
 368                                         return true;
 369                                 else
 370                                         return false;
 371                         }
 372                 }
 373         default:
 374                 return false;
 375         }
 376 }
 377