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 void
 162 radeon_link_encoder_connector(struct drm_device *dev)
 163 {
 164         struct radeon_device *rdev = dev->dev_private;
 165         struct drm_connector *connector;
 166         struct radeon_connector *radeon_connector;
 167         struct drm_encoder *encoder;
 168         struct radeon_encoder *radeon_encoder;
 169
 170         /* walk the list and link encoders to connectors */
 171         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 172                 radeon_connector = to_radeon_connector(connector);
 173                 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 174                         radeon_encoder = to_radeon_encoder(encoder);
 175                         if (radeon_encoder->devices & radeon_connector->devices) {
 176                                 drm_mode_connector_attach_encoder(connector, encoder);
 177                                 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
 178                                         if (rdev->is_atom_bios)
 179                                                 radeon_atom_backlight_init(radeon_encoder, connector);
 180                                         else
 181                                                 radeon_legacy_backlight_init(radeon_encoder, connector);
 182                                         rdev->mode_info.bl_encoder = radeon_encoder;
 183                                 }
 184                         }
 185                 }
 186         }
 187 }
 188
 189 void radeon_encoder_set_active_device(struct drm_encoder *encoder)
 190 {
 191         struct drm_device *dev = encoder->dev;
 192         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 193         struct drm_connector *connector;
 194
 195         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 196                 if (connector->encoder == encoder) {
 197                         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 198                         radeon_encoder->active_device = radeon_encoder->devices & radeon_connector->devices;
 199                         DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n",
 200                                   radeon_encoder->active_device, radeon_encoder->devices,
 201                                   radeon_connector->devices, encoder->encoder_type);
 202                 }
 203         }
 204 }
 205
 206 struct drm_connector *
 207 radeon_get_connector_for_encoder(struct drm_encoder *encoder)
 208 {
 209         struct drm_device *dev = encoder->dev;
 210         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 211         struct drm_connector *connector;
 212         struct radeon_connector *radeon_connector;
 213
 214         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 215                 radeon_connector = to_radeon_connector(connector);
 216                 if (radeon_encoder->active_device & radeon_connector->devices)
 217                         return connector;
 218         }
 219         return NULL;
 220 }
 221
 222 struct drm_connector *
 223 radeon_get_connector_for_encoder_init(struct drm_encoder *encoder)
 224 {
 225         struct drm_device *dev = encoder->dev;
 226         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 227         struct drm_connector *connector;
 228         struct radeon_connector *radeon_connector;
 229
 230         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 231                 radeon_connector = to_radeon_connector(connector);
 232                 if (radeon_encoder->devices & radeon_connector->devices)
 233                         return connector;
 234         }
 235         return NULL;
 236 }
 237
 238 struct drm_encoder *radeon_get_external_encoder(struct drm_encoder *encoder)
 239 {
 240         struct drm_device *dev = encoder->dev;
 241         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 242         struct drm_encoder *other_encoder;
 243         struct radeon_encoder *other_radeon_encoder;
 244
 245         if (radeon_encoder->is_ext_encoder)
 246                 return NULL;
 247
 248         list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) {
 249                 if (other_encoder == encoder)
 250                         continue;
 251                 other_radeon_encoder = to_radeon_encoder(other_encoder);
 252                 if (other_radeon_encoder->is_ext_encoder &&
 253                     (radeon_encoder->devices & other_radeon_encoder->devices))
 254                         return other_encoder;
 255         }
 256         return NULL;
 257 }
 258
 259 u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder)
 260 {
 261         struct drm_encoder *other_encoder = radeon_get_external_encoder(encoder);
 262
 263         if (other_encoder) {
 264                 struct radeon_encoder *radeon_encoder = to_radeon_encoder(other_encoder);
 265
 266                 switch (radeon_encoder->encoder_id) {
 267                 case ENCODER_OBJECT_ID_TRAVIS:
 268                 case ENCODER_OBJECT_ID_NUTMEG:
 269                         return radeon_encoder->encoder_id;
 270                 default:
 271                         return ENCODER_OBJECT_ID_NONE;
 272                 }
 273         }
 274         return ENCODER_OBJECT_ID_NONE;
 275 }
 276
 277 void radeon_panel_mode_fixup(struct drm_encoder *encoder,
 278                              struct drm_display_mode *adjusted_mode)
 279 {
 280         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 281         struct drm_device *dev = encoder->dev;
 282         struct radeon_device *rdev = dev->dev_private;
 283         struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
 284         unsigned hblank = native_mode->htotal - native_mode->hdisplay;
 285         unsigned vblank = native_mode->vtotal - native_mode->vdisplay;
 286         unsigned hover = native_mode->hsync_start - native_mode->hdisplay;
 287         unsigned vover = native_mode->vsync_start - native_mode->vdisplay;
 288         unsigned hsync_width = native_mode->hsync_end - native_mode->hsync_start;
 289         unsigned vsync_width = native_mode->vsync_end - native_mode->vsync_start;
 290
 291         adjusted_mode->clock = native_mode->clock;
 292         adjusted_mode->flags = native_mode->flags;
 293
 294         if (ASIC_IS_AVIVO(rdev)) {
 295                 adjusted_mode->hdisplay = native_mode->hdisplay;
 296                 adjusted_mode->vdisplay = native_mode->vdisplay;
 297         }
 298
 299         adjusted_mode->htotal = native_mode->hdisplay + hblank;
 300         adjusted_mode->hsync_start = native_mode->hdisplay + hover;
 301         adjusted_mode->hsync_end = adjusted_mode->hsync_start + hsync_width;
 302
 303         adjusted_mode->vtotal = native_mode->vdisplay + vblank;
 304         adjusted_mode->vsync_start = native_mode->vdisplay + vover;
 305         adjusted_mode->vsync_end = adjusted_mode->vsync_start + vsync_width;
 306
 307         drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
 308
 309         if (ASIC_IS_AVIVO(rdev)) {
 310                 adjusted_mode->crtc_hdisplay = native_mode->hdisplay;
 311                 adjusted_mode->crtc_vdisplay = native_mode->vdisplay;
 312         }
 313
 314         adjusted_mode->crtc_htotal = adjusted_mode->crtc_hdisplay + hblank;
 315         adjusted_mode->crtc_hsync_start = adjusted_mode->crtc_hdisplay + hover;
 316         adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width;
 317
 318         adjusted_mode->crtc_vtotal = adjusted_mode->crtc_vdisplay + vblank;
 319         adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + vover;
 320         adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width;
 321
 322 }
 323
 324 bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
 325                                     u32 pixel_clock)
 326 {
 327         struct drm_device *dev = encoder->dev;
 328         struct radeon_device *rdev = dev->dev_private;
 329         struct drm_connector *connector;
 330         struct radeon_connector *radeon_connector;
 331         struct radeon_connector_atom_dig *dig_connector;
 332
 333         connector = radeon_get_connector_for_encoder(encoder);
 334         /* if we don't have an active device yet, just use one of
 335          * the connectors tied to the encoder.
 336          */
 337         if (!connector)
 338                 connector = radeon_get_connector_for_encoder_init(encoder);
 339         radeon_connector = to_radeon_connector(connector);
 340
 341         switch (connector->connector_type) {
 342         case DRM_MODE_CONNECTOR_DVII:
 343         case DRM_MODE_CONNECTOR_HDMIB:
 344                 if (radeon_connector->use_digital) {
 345                         /* HDMI 1.3 supports up to 340 Mhz over single link */
 346                         if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {
 347                                 if (pixel_clock > 340000)
 348                                         return true;
 349                                 else
 350                                         return false;
 351                         } else {
 352                                 if (pixel_clock > 165000)
 353                                         return true;
 354                                 else
 355                                         return false;
 356                         }
 357                 } else
 358                         return false;
 359         case DRM_MODE_CONNECTOR_DVID:
 360         case DRM_MODE_CONNECTOR_HDMIA:
 361         case DRM_MODE_CONNECTOR_DisplayPort:
 362                 dig_connector = radeon_connector->con_priv;
 363                 if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 364                     (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
 365                         return false;
 366                 else {
 367                         /* HDMI 1.3 supports up to 340 Mhz over single link */
 368                         if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {
 369                                 if (pixel_clock > 340000)
 370                                         return true;
 371                                 else
 372                                         return false;
 373                         } else {
 374                                 if (pixel_clock > 165000)
 375                                         return true;
 376                                 else
 377                                         return false;
 378                         }
 379                 }
 380         default:
 381                 return false;
 382         }
 383 }
 384