LXR linux/drivers/gpu/drm/radeon/radeon

   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_crtc_helper.h>
  30#include <drm/drm_device.h>
  31#include <drm/radeon_drm.h>
  32
  33#include "radeon.h"
  34#include "atom.h"
  35
  36extern void
  37radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
  38                             struct drm_connector *drm_connector);
  39extern void
  40radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
  41                           struct drm_connector *drm_connector);
  42
  43
  44static uint32_t radeon_encoder_clones(struct drm_encoder *encoder)
  45{
  46        struct drm_device *dev = encoder->dev;
  47        struct radeon_device *rdev = dev->dev_private;
  48        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
  49        struct drm_encoder *clone_encoder;
  50        uint32_t index_mask = 0;
  51        int count;
  52
  53        /* DIG routing gets problematic */
  54        if (rdev->family >= CHIP_R600)
  55                return index_mask;
  56        /* LVDS/TV are too wacky */
  57        if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT)
  58                return index_mask;
  59        /* DVO requires 2x ppll clocks depending on tmds chip */
  60        if (radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT)
  61                return index_mask;
  62
  63        count = -1;
  64        list_for_each_entry(clone_encoder, &dev->mode_config.encoder_list, head) {
  65                struct radeon_encoder *radeon_clone = to_radeon_encoder(clone_encoder);
  66                count++;
  67
  68                if (clone_encoder == encoder)
  69                        continue;
  70                if (radeon_clone->devices & (ATOM_DEVICE_LCD_SUPPORT))
  71                        continue;
  72                if (radeon_clone->devices & ATOM_DEVICE_DFP2_SUPPORT)
  73                        continue;
  74                else
  75                        index_mask |= (1 << count);
  76        }
  77        return index_mask;
  78}
  79
  80void radeon_setup_encoder_clones(struct drm_device *dev)
  81{
  82        struct drm_encoder *encoder;
  83
  84        list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
  85                encoder->possible_clones = radeon_encoder_clones(encoder);
  86        }
  87}
  88
  89uint32_t
  90radeon_get_encoder_enum(struct drm_device *dev, uint32_t supported_device, uint8_t dac)
  91{
  92        struct radeon_device *rdev = dev->dev_private;
  93        uint32_t ret = 0;
  94
  95        switch (supported_device) {
  96        case ATOM_DEVICE_CRT1_SUPPORT:
  97        case ATOM_DEVICE_TV1_SUPPORT:
  98        case ATOM_DEVICE_TV2_SUPPORT:
  99        case ATOM_DEVICE_CRT2_SUPPORT:
 100        case ATOM_DEVICE_CV_SUPPORT:
 101                switch (dac) {
 102                case 1: /* dac a */
 103                        if ((rdev->family == CHIP_RS300) ||
 104                            (rdev->family == CHIP_RS400) ||
 105                            (rdev->family == CHIP_RS480))
 106                                ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
 107                        else if (ASIC_IS_AVIVO(rdev))
 108                                ret = ENCODER_INTERNAL_KLDSCP_DAC1_ENUM_ID1;
 109                        else
 110                                ret = ENCODER_INTERNAL_DAC1_ENUM_ID1;
 111                        break;
 112                case 2: /* dac b */
 113                        if (ASIC_IS_AVIVO(rdev))
 114                                ret = ENCODER_INTERNAL_KLDSCP_DAC2_ENUM_ID1;
 115                        else {
 116                                /*if (rdev->family == CHIP_R200)
 117                                  ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 118                                  else*/
 119                                ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
 120                        }
 121                        break;
 122                case 3: /* external dac */
 123                        if (ASIC_IS_AVIVO(rdev))
 124                                ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
 125                        else
 126                                ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 127                        break;
 128                }
 129                break;
 130        case ATOM_DEVICE_LCD1_SUPPORT:
 131                if (ASIC_IS_AVIVO(rdev))
 132                        ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
 133                else
 134                        ret = ENCODER_INTERNAL_LVDS_ENUM_ID1;
 135                break;
 136        case ATOM_DEVICE_DFP1_SUPPORT:
 137                if ((rdev->family == CHIP_RS300) ||
 138                    (rdev->family == CHIP_RS400) ||
 139                    (rdev->family == CHIP_RS480))
 140                        ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 141                else if (ASIC_IS_AVIVO(rdev))
 142                        ret = ENCODER_INTERNAL_KLDSCP_TMDS1_ENUM_ID1;
 143                else
 144                        ret = ENCODER_INTERNAL_TMDS1_ENUM_ID1;
 145                break;
 146        case ATOM_DEVICE_LCD2_SUPPORT:
 147        case ATOM_DEVICE_DFP2_SUPPORT:
 148                if ((rdev->family == CHIP_RS600) ||
 149                    (rdev->family == CHIP_RS690) ||
 150                    (rdev->family == CHIP_RS740))
 151                        ret = ENCODER_INTERNAL_DDI_ENUM_ID1;
 152                else if (ASIC_IS_AVIVO(rdev))
 153                        ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
 154                else
 155                        ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 156                break;
 157        case ATOM_DEVICE_DFP3_SUPPORT:
 158                ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
 159                break;
 160        }
 161
 162        return ret;
 163}
 164
 165static void radeon_encoder_add_backlight(struct radeon_encoder *radeon_encoder,
 166                                         struct drm_connector *connector)
 167{
 168        struct drm_device *dev = radeon_encoder->base.dev;
 169        struct radeon_device *rdev = dev->dev_private;
 170        bool use_bl = false;
 171
 172        if (!(radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)))
 173                return;
 174
 175        if (radeon_backlight == 0) {
 176                return;
 177        } else if (radeon_backlight == 1) {
 178                use_bl = true;
 179        } else if (radeon_backlight == -1) {
 180                /* Quirks */
 181                /* Amilo Xi 2550 only works with acpi bl */
 182                if ((rdev->pdev->device == 0x9583) &&
 183                    (rdev->pdev->subsystem_vendor == 0x1734) &&
 184                    (rdev->pdev->subsystem_device == 0x1107))
 185                        use_bl = false;
 186/* Older PPC macs use on-GPU backlight controller */
 187#ifndef CONFIG_PPC_PMAC
 188                /* disable native backlight control on older asics */
 189                else if (rdev->family < CHIP_R600)
 190                        use_bl = false;
 191#endif
 192                else
 193                        use_bl = true;
 194        }
 195
 196        if (use_bl) {
 197                if (rdev->is_atom_bios)
 198                        radeon_atom_backlight_init(radeon_encoder, connector);
 199                else
 200                        radeon_legacy_backlight_init(radeon_encoder, connector);
 201        }
 202}
 203
 204void
 205radeon_link_encoder_connector(struct drm_device *dev)
 206{
 207        struct drm_connector *connector;
 208        struct radeon_connector *radeon_connector;
 209        struct drm_encoder *encoder;
 210        struct radeon_encoder *radeon_encoder;
 211
 212        /* walk the list and link encoders to connectors */
 213        list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 214                radeon_connector = to_radeon_connector(connector);
 215                list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 216                        radeon_encoder = to_radeon_encoder(encoder);
 217                        if (radeon_encoder->devices & radeon_connector->devices) {
 218                                drm_connector_attach_encoder(connector, encoder);
 219                                if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
 220                                        radeon_encoder_add_backlight(radeon_encoder, connector);
 221                        }
 222                }
 223        }
 224}
 225
 226void radeon_encoder_set_active_device(struct drm_encoder *encoder)
 227{
 228        struct drm_device *dev = encoder->dev;
 229        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 230        struct drm_connector *connector;
 231
 232        list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 233                if (connector->encoder == encoder) {
 234                        struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 235                        radeon_encoder->active_device = radeon_encoder->devices & radeon_connector->devices;
 236                        DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n",
 237                                  radeon_encoder->active_device, radeon_encoder->devices,
 238                                  radeon_connector->devices, encoder->encoder_type);
 239                }
 240        }
 241}
 242
 243struct drm_connector *
 244radeon_get_connector_for_encoder(struct drm_encoder *encoder)
 245{
 246        struct drm_device *dev = encoder->dev;
 247        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 248        struct drm_connector *connector;
 249        struct radeon_connector *radeon_connector;
 250
 251        list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 252                radeon_connector = to_radeon_connector(connector);
 253                if (radeon_encoder->is_mst_encoder) {
 254                        struct radeon_encoder_mst *mst_enc;
 255
 256                        if (!radeon_connector->is_mst_connector)
 257                                continue;
 258
 259                        mst_enc = radeon_encoder->enc_priv;
 260                        if (mst_enc->connector == radeon_connector->mst_port)
 261                                return connector;
 262                } else if (radeon_encoder->active_device & radeon_connector->devices)
 263                        return connector;
 264        }
 265        return NULL;
 266}
 267
 268struct drm_connector *
 269radeon_get_connector_for_encoder_init(struct drm_encoder *encoder)
 270{
 271        struct drm_device *dev = encoder->dev;
 272        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 273        struct drm_connector *connector;
 274        struct radeon_connector *radeon_connector;
 275
 276        list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 277                radeon_connector = to_radeon_connector(connector);
 278                if (radeon_encoder->devices & radeon_connector->devices)
 279                        return connector;
 280        }
 281        return NULL;
 282}
 283
 284struct drm_encoder *radeon_get_external_encoder(struct drm_encoder *encoder)
 285{
 286        struct drm_device *dev = encoder->dev;
 287        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 288        struct drm_encoder *other_encoder;
 289        struct radeon_encoder *other_radeon_encoder;
 290
 291        if (radeon_encoder->is_ext_encoder)
 292                return NULL;
 293
 294        list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) {
 295                if (other_encoder == encoder)
 296                        continue;
 297                other_radeon_encoder = to_radeon_encoder(other_encoder);
 298                if (other_radeon_encoder->is_ext_encoder &&
 299                    (radeon_encoder->devices & other_radeon_encoder->devices))
 300                        return other_encoder;
 301        }
 302        return NULL;
 303}
 304
 305u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder)
 306{
 307        struct drm_encoder *other_encoder = radeon_get_external_encoder(encoder);
 308
 309        if (other_encoder) {
 310                struct radeon_encoder *radeon_encoder = to_radeon_encoder(other_encoder);
 311
 312                switch (radeon_encoder->encoder_id) {
 313                case ENCODER_OBJECT_ID_TRAVIS:
 314                case ENCODER_OBJECT_ID_NUTMEG:
 315                        return radeon_encoder->encoder_id;
 316                default:
 317                        return ENCODER_OBJECT_ID_NONE;
 318                }
 319        }
 320        return ENCODER_OBJECT_ID_NONE;
 321}
 322
 323void radeon_panel_mode_fixup(struct drm_encoder *encoder,
 324                             struct drm_display_mode *adjusted_mode)
 325{
 326        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 327        struct drm_device *dev = encoder->dev;
 328        struct radeon_device *rdev = dev->dev_private;
 329        struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
 330        unsigned hblank = native_mode->htotal - native_mode->hdisplay;
 331        unsigned vblank = native_mode->vtotal - native_mode->vdisplay;
 332        unsigned hover = native_mode->hsync_start - native_mode->hdisplay;
 333        unsigned vover = native_mode->vsync_start - native_mode->vdisplay;
 334        unsigned hsync_width = native_mode->hsync_end - native_mode->hsync_start;
 335        unsigned vsync_width = native_mode->vsync_end - native_mode->vsync_start;
 336
 337        adjusted_mode->clock = native_mode->clock;
 338        adjusted_mode->flags = native_mode->flags;
 339
 340        if (ASIC_IS_AVIVO(rdev)) {
 341                adjusted_mode->hdisplay = native_mode->hdisplay;
 342                adjusted_mode->vdisplay = native_mode->vdisplay;
 343        }
 344
 345        adjusted_mode->htotal = native_mode->hdisplay + hblank;
 346        adjusted_mode->hsync_start = native_mode->hdisplay + hover;
 347        adjusted_mode->hsync_end = adjusted_mode->hsync_start + hsync_width;
 348
 349        adjusted_mode->vtotal = native_mode->vdisplay + vblank;
 350        adjusted_mode->vsync_start = native_mode->vdisplay + vover;
 351        adjusted_mode->vsync_end = adjusted_mode->vsync_start + vsync_width;
 352
 353        drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
 354
 355        if (ASIC_IS_AVIVO(rdev)) {
 356                adjusted_mode->crtc_hdisplay = native_mode->hdisplay;
 357                adjusted_mode->crtc_vdisplay = native_mode->vdisplay;
 358        }
 359
 360        adjusted_mode->crtc_htotal = adjusted_mode->crtc_hdisplay + hblank;
 361        adjusted_mode->crtc_hsync_start = adjusted_mode->crtc_hdisplay + hover;
 362        adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width;
 363
 364        adjusted_mode->crtc_vtotal = adjusted_mode->crtc_vdisplay + vblank;
 365        adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + vover;
 366        adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width;
 367
 368}
 369
 370bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
 371                                    u32 pixel_clock)
 372{
 373        struct drm_device *dev = encoder->dev;
 374        struct radeon_device *rdev = dev->dev_private;
 375        struct drm_connector *connector;
 376        struct radeon_connector *radeon_connector;
 377        struct radeon_connector_atom_dig *dig_connector;
 378
 379        connector = radeon_get_connector_for_encoder(encoder);
 380        /* if we don't have an active device yet, just use one of
 381         * the connectors tied to the encoder.
 382         */
 383        if (!connector)
 384                connector = radeon_get_connector_for_encoder_init(encoder);
 385        radeon_connector = to_radeon_connector(connector);
 386
 387        switch (connector->connector_type) {
 388        case DRM_MODE_CONNECTOR_DVII:
 389        case DRM_MODE_CONNECTOR_HDMIB:
 390                if (radeon_connector->use_digital) {
 391                        /* HDMI 1.3 supports up to 340 Mhz over single link */
 392                        if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
 393                                if (pixel_clock > 340000)
 394                                        return true;
 395                                else
 396                                        return false;
 397                        } else {
 398                                if (pixel_clock > 165000)
 399                                        return true;
 400                                else
 401                                        return false;
 402                        }
 403                } else
 404                        return false;
 405        case DRM_MODE_CONNECTOR_DVID:
 406        case DRM_MODE_CONNECTOR_HDMIA:
 407        case DRM_MODE_CONNECTOR_DisplayPort:
 408                if (radeon_connector->is_mst_connector)
 409                        return false;
 410
 411                dig_connector = radeon_connector->con_priv;
 412                if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 413                    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
 414                        return false;
 415                else {
 416                        /* HDMI 1.3 supports up to 340 Mhz over single link */
 417                        if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
 418                                if (pixel_clock > 340000)
 419                                        return true;
 420                                else
 421                                        return false;
 422                        } else {
 423                                if (pixel_clock > 165000)
 424                                        return true;
 425                                else
 426                                        return false;
 427                        }
 428                }
 429        default:
 430                return false;
 431        }
 432}
 433
 434bool radeon_encoder_is_digital(struct drm_encoder *encoder)
 435{
 436        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 437        switch (radeon_encoder->encoder_id) {
 438        case ENCODER_OBJECT_ID_INTERNAL_LVDS:
 439        case ENCODER_OBJECT_ID_INTERNAL_TMDS1:
 440        case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
 441        case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
 442        case ENCODER_OBJECT_ID_INTERNAL_DVO1:
 443        case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
 444        case ENCODER_OBJECT_ID_INTERNAL_DDI:
 445        case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
 446        case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
 447        case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
 448        case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
 449        case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3:
 450                return true;
 451        default:
 452                return false;
 453        }
 454}
 455