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 amdgpu_link_encoder_connector(struct drm_device *dev) 37 { 38 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 drm_connector_list_iter_begin(dev, &iter); 46 /* walk the list and link encoders to connectors */ 47 drm_for_each_connector_iter(connector, &iter) { 48 amdgpu_connector = to_amdgpu_connector(connector); 49 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 50 amdgpu_encoder = to_amdgpu_encoder(encoder); 51 if (amdgpu_encoder->devices & amdgpu_connector->devices) { 52 drm_connector_attach_encoder(connector, encoder); 53 if (amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) { 54 amdgpu_atombios_encoder_init_backlight(amdgpu_encoder, connector); 55 adev->mode_info.bl_encoder = amdgpu_encoder; 56 } 57 } 58 } 59 } 60 drm_connector_list_iter_end(&iter); 61 } 62 63 void amdgpu_encoder_set_active_device(struct drm_encoder *encoder) 64 { 65 struct drm_device *dev = encoder->dev; 66 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 67 struct drm_connector *connector; 68 struct drm_connector_list_iter iter; 69 70 drm_connector_list_iter_begin(dev, &iter); 71 drm_for_each_connector_iter(connector, &iter) { 72 if (connector->encoder == encoder) { 73 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 74 amdgpu_encoder->active_device = amdgpu_encoder->devices & amdgpu_connector->devices; 75 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 drm_connector_list_iter_end(&iter); 81 } 82 83 struct drm_connector * 84 amdgpu_get_connector_for_encoder(struct drm_encoder *encoder) 85 { 86 struct drm_device *dev = encoder->dev; 87 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 88 struct drm_connector *connector, *found = NULL; 89 struct drm_connector_list_iter iter; 90 struct amdgpu_connector *amdgpu_connector; 91 92 drm_connector_list_iter_begin(dev, &iter); 93 drm_for_each_connector_iter(connector, &iter) { 94 amdgpu_connector = to_amdgpu_connector(connector); 95 if (amdgpu_encoder->active_device & amdgpu_connector->devices) { 96 found = connector; 97 break; 98 } 99 } 100 drm_connector_list_iter_end(&iter); 101 return found; 102 } 103 104 struct drm_connector * 105 amdgpu_get_connector_for_encoder_init(struct drm_encoder *encoder) 106 { 107 struct drm_device *dev = encoder->dev; 108 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 109 struct drm_connector *connector, *found = NULL; 110 struct drm_connector_list_iter iter; 111 struct amdgpu_connector *amdgpu_connector; 112 113 drm_connector_list_iter_begin(dev, &iter); 114 drm_for_each_connector_iter(connector, &iter) { 115 amdgpu_connector = to_amdgpu_connector(connector); 116 if (amdgpu_encoder->devices & amdgpu_connector->devices) { 117 found = connector; 118 break; 119 } 120 } 121 drm_connector_list_iter_end(&iter); 122 return found; 123 } 124 125 struct drm_encoder *amdgpu_get_external_encoder(struct drm_encoder *encoder) 126 { 127 struct drm_device *dev = encoder->dev; 128 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 129 struct drm_encoder *other_encoder; 130 struct amdgpu_encoder *other_amdgpu_encoder; 131 132 if (amdgpu_encoder->is_ext_encoder) 133 return NULL; 134 135 list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) { 136 if (other_encoder == encoder) 137 continue; 138 other_amdgpu_encoder = to_amdgpu_encoder(other_encoder); 139 if (other_amdgpu_encoder->is_ext_encoder && 140 (amdgpu_encoder->devices & other_amdgpu_encoder->devices)) 141 return other_encoder; 142 } 143 return NULL; 144 } 145 146 u16 amdgpu_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder) 147 { 148 struct drm_encoder *other_encoder = amdgpu_get_external_encoder(encoder); 149 150 if (other_encoder) { 151 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(other_encoder); 152 153 switch (amdgpu_encoder->encoder_id) { 154 case ENCODER_OBJECT_ID_TRAVIS: 155 case ENCODER_OBJECT_ID_NUTMEG: 156 return amdgpu_encoder->encoder_id; 157 default: 158 return ENCODER_OBJECT_ID_NONE; 159 } 160 } 161 return ENCODER_OBJECT_ID_NONE; 162 } 163 164 void amdgpu_panel_mode_fixup(struct drm_encoder *encoder, 165 struct drm_display_mode *adjusted_mode) 166 { 167 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 168 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; 169 unsigned hblank = native_mode->htotal - native_mode->hdisplay; 170 unsigned vblank = native_mode->vtotal - native_mode->vdisplay; 171 unsigned hover = native_mode->hsync_start - native_mode->hdisplay; 172 unsigned vover = native_mode->vsync_start - native_mode->vdisplay; 173 unsigned hsync_width = native_mode->hsync_end - native_mode->hsync_start; 174 unsigned vsync_width = native_mode->vsync_end - native_mode->vsync_start; 175 176 adjusted_mode->clock = native_mode->clock; 177 adjusted_mode->flags = native_mode->flags; 178 179 adjusted_mode->hdisplay = native_mode->hdisplay; 180 adjusted_mode->vdisplay = native_mode->vdisplay; 181 182 adjusted_mode->htotal = native_mode->hdisplay + hblank; 183 adjusted_mode->hsync_start = native_mode->hdisplay + hover; 184 adjusted_mode->hsync_end = adjusted_mode->hsync_start + hsync_width; 185 186 adjusted_mode->vtotal = native_mode->vdisplay + vblank; 187 adjusted_mode->vsync_start = native_mode->vdisplay + vover; 188 adjusted_mode->vsync_end = adjusted_mode->vsync_start + vsync_width; 189 190 drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V); 191 192 adjusted_mode->crtc_hdisplay = native_mode->hdisplay; 193 adjusted_mode->crtc_vdisplay = native_mode->vdisplay; 194 195 adjusted_mode->crtc_htotal = adjusted_mode->crtc_hdisplay + hblank; 196 adjusted_mode->crtc_hsync_start = adjusted_mode->crtc_hdisplay + hover; 197 adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width; 198 199 adjusted_mode->crtc_vtotal = adjusted_mode->crtc_vdisplay + vblank; 200 adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + vover; 201 adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width; 202 203 } 204 205 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 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 if (!connector) 217 connector = amdgpu_get_connector_for_encoder_init(encoder); 218 amdgpu_connector = to_amdgpu_connector(connector); 219 220 switch (connector->connector_type) { 221 case DRM_MODE_CONNECTOR_DVII: 222 case DRM_MODE_CONNECTOR_HDMIB: 223 if (amdgpu_connector->use_digital) { 224 /* HDMI 1.3 supports up to 340 Mhz over single link */ 225 if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) { 226 if (pixel_clock > 340000) 227 return true; 228 else 229 return false; 230 } else { 231 if (pixel_clock > 165000) 232 return true; 233 else 234 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 dig_connector = amdgpu_connector->con_priv; 242 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 if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) { 248 if (pixel_clock > 340000) 249 return true; 250 else 251 return false; 252 } else { 253 if (pixel_clock > 165000) 254 return true; 255 else 256 return false; 257 } 258 } 259 default: 260 return false; 261 } 262 } 263