Line data    Source code

       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 <drm/drm_crtc_helper.h>
      28             : #include <drm/amdgpu_drm.h>
      29             : #include "amdgpu.h"
      30             : #include "amdgpu_connectors.h"
      31             : #include "amdgpu_display.h"
      32             : #include "atom.h"
      33             : #include "atombios_encoders.h"
      34             : 
      35             : void
      36           0 : amdgpu_link_encoder_connector(struct drm_device *dev)
      37             : {
      38           0 :         struct amdgpu_device *adev = drm_to_adev(dev);
      39             :         struct drm_connector *connector;
      40             :         struct drm_connector_list_iter iter;
      41             :         struct amdgpu_connector *amdgpu_connector;
      42             :         struct drm_encoder *encoder;
      43             :         struct amdgpu_encoder *amdgpu_encoder;
      44             : 
      45           0 :         drm_connector_list_iter_begin(dev, &iter);
      46             :         /* walk the list and link encoders to connectors */
      47           0 :         drm_for_each_connector_iter(connector, &iter) {
      48           0 :                 amdgpu_connector = to_amdgpu_connector(connector);
      49           0 :                 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
      50           0 :                         amdgpu_encoder = to_amdgpu_encoder(encoder);
      51           0 :                         if (amdgpu_encoder->devices & amdgpu_connector->devices) {
      52           0 :                                 drm_connector_attach_encoder(connector, encoder);
      53           0 :                                 if (amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
      54           0 :                                         amdgpu_atombios_encoder_init_backlight(amdgpu_encoder, connector);
      55           0 :                                         adev->mode_info.bl_encoder = amdgpu_encoder;
      56             :                                 }
      57             :                         }
      58             :                 }
      59             :         }
      60           0 :         drm_connector_list_iter_end(&iter);
      61           0 : }
      62             : 
      63           0 : void amdgpu_encoder_set_active_device(struct drm_encoder *encoder)
      64             : {
      65           0 :         struct drm_device *dev = encoder->dev;
      66           0 :         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
      67             :         struct drm_connector *connector;
      68             :         struct drm_connector_list_iter iter;
      69             : 
      70           0 :         drm_connector_list_iter_begin(dev, &iter);
      71           0 :         drm_for_each_connector_iter(connector, &iter) {
      72           0 :                 if (connector->encoder == encoder) {
      73           0 :                         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
      74           0 :                         amdgpu_encoder->active_device = amdgpu_encoder->devices & amdgpu_connector->devices;
      75           0 :                         DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n",
      76             :                                   amdgpu_encoder->active_device, amdgpu_encoder->devices,
      77             :                                   amdgpu_connector->devices, encoder->encoder_type);
      78             :                 }
      79             :         }
      80           0 :         drm_connector_list_iter_end(&iter);
      81           0 : }
      82             : 
      83             : struct drm_connector *
      84           0 : amdgpu_get_connector_for_encoder(struct drm_encoder *encoder)
      85             : {
      86           0 :         struct drm_device *dev = encoder->dev;
      87           0 :         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
      88           0 :         struct drm_connector *connector, *found = NULL;
      89             :         struct drm_connector_list_iter iter;
      90             :         struct amdgpu_connector *amdgpu_connector;
      91             : 
      92           0 :         drm_connector_list_iter_begin(dev, &iter);
      93           0 :         drm_for_each_connector_iter(connector, &iter) {
      94           0 :                 amdgpu_connector = to_amdgpu_connector(connector);
      95           0 :                 if (amdgpu_encoder->active_device & amdgpu_connector->devices) {
      96             :                         found = connector;
      97             :                         break;
      98             :                 }
      99             :         }
     100           0 :         drm_connector_list_iter_end(&iter);
     101           0 :         return found;
     102             : }
     103             : 
     104             : struct drm_connector *
     105           0 : amdgpu_get_connector_for_encoder_init(struct drm_encoder *encoder)
     106             : {
     107           0 :         struct drm_device *dev = encoder->dev;
     108           0 :         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
     109           0 :         struct drm_connector *connector, *found = NULL;
     110             :         struct drm_connector_list_iter iter;
     111             :         struct amdgpu_connector *amdgpu_connector;
     112             : 
     113           0 :         drm_connector_list_iter_begin(dev, &iter);
     114           0 :         drm_for_each_connector_iter(connector, &iter) {
     115           0 :                 amdgpu_connector = to_amdgpu_connector(connector);
     116           0 :                 if (amdgpu_encoder->devices & amdgpu_connector->devices) {
     117             :                         found = connector;
     118             :                         break;
     119             :                 }
     120             :         }
     121           0 :         drm_connector_list_iter_end(&iter);
     122           0 :         return found;
     123             : }
     124             : 
     125           0 : struct drm_encoder *amdgpu_get_external_encoder(struct drm_encoder *encoder)
     126             : {
     127           0 :         struct drm_device *dev = encoder->dev;
     128           0 :         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
     129             :         struct drm_encoder *other_encoder;
     130             :         struct amdgpu_encoder *other_amdgpu_encoder;
     131             : 
     132           0 :         if (amdgpu_encoder->is_ext_encoder)
     133             :                 return NULL;
     134             : 
     135           0 :         list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) {
     136           0 :                 if (other_encoder == encoder)
     137           0 :                         continue;
     138           0 :                 other_amdgpu_encoder = to_amdgpu_encoder(other_encoder);
     139           0 :                 if (other_amdgpu_encoder->is_ext_encoder &&
     140           0 :                     (amdgpu_encoder->devices & other_amdgpu_encoder->devices))
     141             :                         return other_encoder;
     142             :         }
     143             :         return NULL;
     144             : }
     145             : 
     146           0 : u16 amdgpu_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder)
     147             : {
     148           0 :         struct drm_encoder *other_encoder = amdgpu_get_external_encoder(encoder);
     149             : 
     150           0 :         if (other_encoder) {
     151           0 :                 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(other_encoder);
     152             : 
     153           0 :                 switch (amdgpu_encoder->encoder_id) {
     154             :                 case ENCODER_OBJECT_ID_TRAVIS:
     155             :                 case ENCODER_OBJECT_ID_NUTMEG:
     156           0 :                         return amdgpu_encoder->encoder_id;
     157             :                 default:
     158             :                         return ENCODER_OBJECT_ID_NONE;
     159             :                 }
     160             :         }
     161             :         return ENCODER_OBJECT_ID_NONE;
     162             : }
     163             : 
     164           0 : void amdgpu_panel_mode_fixup(struct drm_encoder *encoder,
     165             :                              struct drm_display_mode *adjusted_mode)
     166             : {
     167           0 :         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
     168           0 :         struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
     169           0 :         unsigned hblank = native_mode->htotal - native_mode->hdisplay;
     170           0 :         unsigned vblank = native_mode->vtotal - native_mode->vdisplay;
     171           0 :         unsigned hover = native_mode->hsync_start - native_mode->hdisplay;
     172           0 :         unsigned vover = native_mode->vsync_start - native_mode->vdisplay;
     173           0 :         unsigned hsync_width = native_mode->hsync_end - native_mode->hsync_start;
     174           0 :         unsigned vsync_width = native_mode->vsync_end - native_mode->vsync_start;
     175             : 
     176           0 :         adjusted_mode->clock = native_mode->clock;
     177           0 :         adjusted_mode->flags = native_mode->flags;
     178             : 
     179           0 :         adjusted_mode->hdisplay = native_mode->hdisplay;
     180           0 :         adjusted_mode->vdisplay = native_mode->vdisplay;
     181             : 
     182           0 :         adjusted_mode->htotal = native_mode->hdisplay + hblank;
     183           0 :         adjusted_mode->hsync_start = native_mode->hdisplay + hover;
     184           0 :         adjusted_mode->hsync_end = adjusted_mode->hsync_start + hsync_width;
     185             : 
     186           0 :         adjusted_mode->vtotal = native_mode->vdisplay + vblank;
     187           0 :         adjusted_mode->vsync_start = native_mode->vdisplay + vover;
     188           0 :         adjusted_mode->vsync_end = adjusted_mode->vsync_start + vsync_width;
     189             : 
     190           0 :         drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
     191             : 
     192           0 :         adjusted_mode->crtc_hdisplay = native_mode->hdisplay;
     193           0 :         adjusted_mode->crtc_vdisplay = native_mode->vdisplay;
     194             : 
     195           0 :         adjusted_mode->crtc_htotal = adjusted_mode->crtc_hdisplay + hblank;
     196           0 :         adjusted_mode->crtc_hsync_start = adjusted_mode->crtc_hdisplay + hover;
     197           0 :         adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width;
     198             : 
     199           0 :         adjusted_mode->crtc_vtotal = adjusted_mode->crtc_vdisplay + vblank;
     200           0 :         adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + vover;
     201           0 :         adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width;
     202             : 
     203           0 : }
     204             : 
     205           0 : bool amdgpu_dig_monitor_is_duallink(struct drm_encoder *encoder,
     206             :                                     u32 pixel_clock)
     207             : {
     208             :         struct drm_connector *connector;
     209             :         struct amdgpu_connector *amdgpu_connector;
     210             :         struct amdgpu_connector_atom_dig *dig_connector;
     211             : 
     212           0 :         connector = amdgpu_get_connector_for_encoder(encoder);
     213             :         /* if we don't have an active device yet, just use one of
     214             :          * the connectors tied to the encoder.
     215             :          */
     216           0 :         if (!connector)
     217           0 :                 connector = amdgpu_get_connector_for_encoder_init(encoder);
     218           0 :         amdgpu_connector = to_amdgpu_connector(connector);
     219             : 
     220           0 :         switch (connector->connector_type) {
     221             :         case DRM_MODE_CONNECTOR_DVII:
     222             :         case DRM_MODE_CONNECTOR_HDMIB:
     223           0 :                 if (amdgpu_connector->use_digital) {
     224             :                         /* HDMI 1.3 supports up to 340 Mhz over single link */
     225           0 :                         if (connector->display_info.is_hdmi) {
     226           0 :                                 if (pixel_clock > 340000)
     227             :                                         return true;
     228             :                                 else
     229           0 :                                         return false;
     230             :                         } else {
     231           0 :                                 if (pixel_clock > 165000)
     232             :                                         return true;
     233             :                                 else
     234           0 :                                         return false;
     235             :                         }
     236             :                 } else
     237             :                         return false;
     238             :         case DRM_MODE_CONNECTOR_DVID:
     239             :         case DRM_MODE_CONNECTOR_HDMIA:
     240             :         case DRM_MODE_CONNECTOR_DisplayPort:
     241           0 :                 dig_connector = amdgpu_connector->con_priv;
     242           0 :                 if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
     243             :                     (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
     244             :                         return false;
     245             :                 else {
     246             :                         /* HDMI 1.3 supports up to 340 Mhz over single link */
     247           0 :                         if (connector->display_info.is_hdmi) {
     248           0 :                                 if (pixel_clock > 340000)
     249             :                                         return true;
     250             :                                 else
     251           0 :                                         return false;
     252             :                         } else {
     253           0 :                                 if (pixel_clock > 165000)
     254             :                                         return true;
     255             :                                 else
     256           0 :                                         return false;
     257             :                         }
     258             :                 }
     259             :         default:
     260             :                 return false;
     261             :         }
     262             : }