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#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
  32extern void
  33radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
  34                             struct drm_connector *drm_connector);
  35extern void
  36radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
  37                           struct drm_connector *drm_connector);
  38
  39
  40static 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
  76void 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
  85uint32_t
  86radeon_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
 161static 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
 200void
 201radeon_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_mode_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
 222void 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
 239struct drm_connector *
 240radeon_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
 264struct drm_connector *
 265radeon_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
 280struct 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
 301u16 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
 319void 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
 366bool 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
 430bool 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}
 451