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