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 "drmP.h"
  27 #include "drm_crtc_helper.h"
  28 #include "radeon_drm.h"
  29 #include "radeon.h"
  30 #include "atom.h"
  31
  32 static uint32_t radeon_encoder_clones(struct drm_encoder *encoder)
  33 {
  34         struct drm_device *dev = encoder->dev;
  35         struct radeon_device *rdev = dev->dev_private;
  36         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
  37         struct drm_encoder *clone_encoder;
  38         uint32_t index_mask = 0;
  39         int count;
  40
  41         /* DIG routing gets problematic */
  42         if (rdev->family >= CHIP_R600)
  43                 return index_mask;
  44         /* LVDS/TV are too wacky */
  45         if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT)
  46                 return index_mask;
  47         /* DVO requires 2x ppll clocks depending on tmds chip */
  48         if (radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT)
  49                 return index_mask;
  50
  51         count = -1;
  52         list_for_each_entry(clone_encoder, &dev->mode_config.encoder_list, head) {
  53                 struct radeon_encoder *radeon_clone = to_radeon_encoder(clone_encoder);
  54                 count++;
  55
  56                 if (clone_encoder == encoder)
  57                         continue;
  58                 if (radeon_clone->devices & (ATOM_DEVICE_LCD_SUPPORT))
  59                         continue;
  60                 if (radeon_clone->devices & ATOM_DEVICE_DFP2_SUPPORT)
  61                         continue;
  62                 else
  63                         index_mask |= (1 << count);
  64         }
  65         return index_mask;
  66 }
  67
  68 void radeon_setup_encoder_clones(struct drm_device *dev)
  69 {
  70         struct drm_encoder *encoder;
  71
  72         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
  73                 encoder->possible_clones = radeon_encoder_clones(encoder);
  74         }
  75 }
  76
  77 uint32_t
  78 radeon_get_encoder_enum(struct drm_device *dev, uint32_t supported_device, uint8_t dac)
  79 {
  80         struct radeon_device *rdev = dev->dev_private;
  81         uint32_t ret = 0;
  82
  83         switch (supported_device) {
  84         case ATOM_DEVICE_CRT1_SUPPORT:
  85         case ATOM_DEVICE_TV1_SUPPORT:
  86         case ATOM_DEVICE_TV2_SUPPORT:
  87         case ATOM_DEVICE_CRT2_SUPPORT:
  88         case ATOM_DEVICE_CV_SUPPORT:
  89                 switch (dac) {
  90                 case 1: /* dac a */
  91                         if ((rdev->family == CHIP_RS300) ||
  92                             (rdev->family == CHIP_RS400) ||
  93                             (rdev->family == CHIP_RS480))
  94                                 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
  95                         else if (ASIC_IS_AVIVO(rdev))
  96                                 ret = ENCODER_INTERNAL_KLDSCP_DAC1_ENUM_ID1;
  97                         else
  98                                 ret = ENCODER_INTERNAL_DAC1_ENUM_ID1;
  99                         break;
 100                 case 2: /* dac b */
 101                         if (ASIC_IS_AVIVO(rdev))
 102                                 ret = ENCODER_INTERNAL_KLDSCP_DAC2_ENUM_ID1;
 103                         else {
 104                                 /*if (rdev->family == CHIP_R200)
 105                                   ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 106                                   else*/
 107                                 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
 108                         }
 109                         break;
 110                 case 3: /* external dac */
 111                         if (ASIC_IS_AVIVO(rdev))
 112                                 ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
 113                         else
 114                                 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 115                         break;
 116                 }
 117                 break;
 118         case ATOM_DEVICE_LCD1_SUPPORT:
 119                 if (ASIC_IS_AVIVO(rdev))
 120                         ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
 121                 else
 122                         ret = ENCODER_INTERNAL_LVDS_ENUM_ID1;
 123                 break;
 124         case ATOM_DEVICE_DFP1_SUPPORT:
 125                 if ((rdev->family == CHIP_RS300) ||
 126                     (rdev->family == CHIP_RS400) ||
 127                     (rdev->family == CHIP_RS480))
 128                         ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 129                 else if (ASIC_IS_AVIVO(rdev))
 130                         ret = ENCODER_INTERNAL_KLDSCP_TMDS1_ENUM_ID1;
 131                 else
 132                         ret = ENCODER_INTERNAL_TMDS1_ENUM_ID1;
 133                 break;
 134         case ATOM_DEVICE_LCD2_SUPPORT:
 135         case ATOM_DEVICE_DFP2_SUPPORT:
 136                 if ((rdev->family == CHIP_RS600) ||
 137                     (rdev->family == CHIP_RS690) ||
 138                     (rdev->family == CHIP_RS740))
 139                         ret = ENCODER_INTERNAL_DDI_ENUM_ID1;
 140                 else if (ASIC_IS_AVIVO(rdev))
 141                         ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
 142                 else
 143                         ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
 144                 break;
 145         case ATOM_DEVICE_DFP3_SUPPORT:
 146                 ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
 147                 break;
 148         }
 149
 150         return ret;
 151 }
 152
 153 void
 154 radeon_link_encoder_connector(struct drm_device *dev)
 155 {
 156         struct drm_connector *connector;
 157         struct radeon_connector *radeon_connector;
 158         struct drm_encoder *encoder;
 159         struct radeon_encoder *radeon_encoder;
 160
 161         /* walk the list and link encoders to connectors */
 162         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 163                 radeon_connector = to_radeon_connector(connector);
 164                 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 165                         radeon_encoder = to_radeon_encoder(encoder);
 166                         if (radeon_encoder->devices & radeon_connector->devices)
 167                                 drm_mode_connector_attach_encoder(connector, encoder);
 168                 }
 169         }
 170 }
 171
 172 void radeon_encoder_set_active_device(struct drm_encoder *encoder)
 173 {
 174         struct drm_device *dev = encoder->dev;
 175         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 176         struct drm_connector *connector;
 177
 178         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 179                 if (connector->encoder == encoder) {
 180                         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 181                         radeon_encoder->active_device = radeon_encoder->devices & radeon_connector->devices;
 182                         DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n",
 183                                   radeon_encoder->active_device, radeon_encoder->devices,
 184                                   radeon_connector->devices, encoder->encoder_type);
 185                 }
 186         }
 187 }
 188
 189 struct drm_connector *
 190 radeon_get_connector_for_encoder(struct drm_encoder *encoder)
 191 {
 192         struct drm_device *dev = encoder->dev;
 193         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 194         struct drm_connector *connector;
 195         struct radeon_connector *radeon_connector;
 196
 197         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 198                 radeon_connector = to_radeon_connector(connector);
 199                 if (radeon_encoder->active_device & radeon_connector->devices)
 200                         return connector;
 201         }
 202         return NULL;
 203 }
 204
 205 struct drm_encoder *radeon_get_external_encoder(struct drm_encoder *encoder)
 206 {
 207         struct drm_device *dev = encoder->dev;
 208         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 209         struct drm_encoder *other_encoder;
 210         struct radeon_encoder *other_radeon_encoder;
 211
 212         if (radeon_encoder->is_ext_encoder)
 213                 return NULL;
 214
 215         list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) {
 216                 if (other_encoder == encoder)
 217                         continue;
 218                 other_radeon_encoder = to_radeon_encoder(other_encoder);
 219                 if (other_radeon_encoder->is_ext_encoder &&
 220                     (radeon_encoder->devices & other_radeon_encoder->devices))
 221                         return other_encoder;
 222         }
 223         return NULL;
 224 }
 225
 226 u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder)
 227 {
 228         struct drm_encoder *other_encoder = radeon_get_external_encoder(encoder);
 229
 230         if (other_encoder) {
 231                 struct radeon_encoder *radeon_encoder = to_radeon_encoder(other_encoder);
 232
 233                 switch (radeon_encoder->encoder_id) {
 234                 case ENCODER_OBJECT_ID_TRAVIS:
 235                 case ENCODER_OBJECT_ID_NUTMEG:
 236                         return true;
 237                 default:
 238                         return false;
 239                 }
 240         }
 241
 242         return false;
 243 }
 244
 245 void radeon_panel_mode_fixup(struct drm_encoder *encoder,
 246                              struct drm_display_mode *adjusted_mode)
 247 {
 248         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 249         struct drm_device *dev = encoder->dev;
 250         struct radeon_device *rdev = dev->dev_private;
 251         struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
 252         unsigned hblank = native_mode->htotal - native_mode->hdisplay;
 253         unsigned vblank = native_mode->vtotal - native_mode->vdisplay;
 254         unsigned hover = native_mode->hsync_start - native_mode->hdisplay;
 255         unsigned vover = native_mode->vsync_start - native_mode->vdisplay;
 256         unsigned hsync_width = native_mode->hsync_end - native_mode->hsync_start;
 257         unsigned vsync_width = native_mode->vsync_end - native_mode->vsync_start;
 258
 259         adjusted_mode->clock = native_mode->clock;
 260         adjusted_mode->flags = native_mode->flags;
 261
 262         if (ASIC_IS_AVIVO(rdev)) {
 263                 adjusted_mode->hdisplay = native_mode->hdisplay;
 264                 adjusted_mode->vdisplay = native_mode->vdisplay;
 265         }
 266
 267         adjusted_mode->htotal = native_mode->hdisplay + hblank;
 268         adjusted_mode->hsync_start = native_mode->hdisplay + hover;
 269         adjusted_mode->hsync_end = adjusted_mode->hsync_start + hsync_width;
 270
 271         adjusted_mode->vtotal = native_mode->vdisplay + vblank;
 272         adjusted_mode->vsync_start = native_mode->vdisplay + vover;
 273         adjusted_mode->vsync_end = adjusted_mode->vsync_start + vsync_width;
 274
 275         drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
 276
 277         if (ASIC_IS_AVIVO(rdev)) {
 278                 adjusted_mode->crtc_hdisplay = native_mode->hdisplay;
 279                 adjusted_mode->crtc_vdisplay = native_mode->vdisplay;
 280         }
 281
 282         adjusted_mode->crtc_htotal = adjusted_mode->crtc_hdisplay + hblank;
 283         adjusted_mode->crtc_hsync_start = adjusted_mode->crtc_hdisplay + hover;
 284         adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width;
 285
 286         adjusted_mode->crtc_vtotal = adjusted_mode->crtc_vdisplay + vblank;
 287         adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + vover;
 288         adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width;
 289
 290 }
 291