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 <linux/pci.h> 28 29 #include <drm/drm_crtc_helper.h> 30 #include <drm/drm_device.h> 31 #include <drm/radeon_drm.h> 32 33 #include <acpi/video.h> 34 35 #include "radeon.h" 36 #include "radeon_atombios.h" 37 #include "radeon_legacy_encoders.h" 38 #include "atom.h" 39 40 static 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 76 void 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 85 uint32_t 86 radeon_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 } 160 161 static 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 use_bl = false; 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 /* 200 * If there is no native backlight device (which may happen even when 201 * use_bl==true) try registering an ACPI video backlight device instead. 202 */ 203 if (!rdev->mode_info.bl_encoder) 204 acpi_video_register_backlight(); 205 } 206 207 void 208 radeon_link_encoder_connector(struct drm_device *dev) 209 { 210 struct drm_connector *connector; 211 struct radeon_connector *radeon_connector; 212 struct drm_encoder *encoder; 213 struct radeon_encoder *radeon_encoder; 214 215 /* walk the list and link encoders to connectors */ 216 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 217 radeon_connector = to_radeon_connector(connector); 218 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 219 radeon_encoder = to_radeon_encoder(encoder); 220 if (radeon_encoder->devices & radeon_connector->devices) { 221 drm_connector_attach_encoder(connector, encoder); 222 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) 223 radeon_encoder_add_backlight(radeon_encoder, connector); 224 } 225 } 226 } 227 } 228 229 void radeon_encoder_set_active_device(struct drm_encoder *encoder) 230 { 231 struct drm_device *dev = encoder->dev; 232 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 233 struct drm_connector *connector; 234 235 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 236 if (connector->encoder == encoder) { 237 struct radeon_connector *radeon_connector = to_radeon_connector(connector); 238 radeon_encoder->active_device = radeon_encoder->devices & radeon_connector->devices; 239 DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n", 240 radeon_encoder->active_device, radeon_encoder->devices, 241 radeon_connector->devices, encoder->encoder_type); 242 } 243 } 244 } 245 246 struct drm_connector * 247 radeon_get_connector_for_encoder(struct drm_encoder *encoder) 248 { 249 struct drm_device *dev = encoder->dev; 250 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 251 struct drm_connector *connector; 252 struct radeon_connector *radeon_connector; 253 254 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 255 radeon_connector = to_radeon_connector(connector); 256 if (radeon_encoder->active_device & radeon_connector->devices) 257 return connector; 258 } 259 return NULL; 260 } 261 262 struct drm_connector * 263 radeon_get_connector_for_encoder_init(struct drm_encoder *encoder) 264 { 265 struct drm_device *dev = encoder->dev; 266 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 267 struct drm_connector *connector; 268 struct radeon_connector *radeon_connector; 269 270 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 271 radeon_connector = to_radeon_connector(connector); 272 if (radeon_encoder->devices & radeon_connector->devices) 273 return connector; 274 } 275 return NULL; 276 } 277 278 struct drm_encoder *radeon_get_external_encoder(struct drm_encoder *encoder) 279 { 280 struct drm_device *dev = encoder->dev; 281 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 282 struct drm_encoder *other_encoder; 283 struct radeon_encoder *other_radeon_encoder; 284 285 if (radeon_encoder->is_ext_encoder) 286 return NULL; 287 288 list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) { 289 if (other_encoder == encoder) 290 continue; 291 other_radeon_encoder = to_radeon_encoder(other_encoder); 292 if (other_radeon_encoder->is_ext_encoder && 293 (radeon_encoder->devices & other_radeon_encoder->devices)) 294 return other_encoder; 295 } 296 return NULL; 297 } 298 299 u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder) 300 { 301 struct drm_encoder *other_encoder = radeon_get_external_encoder(encoder); 302 303 if (other_encoder) { 304 struct radeon_encoder *radeon_encoder = to_radeon_encoder(other_encoder); 305 306 switch (radeon_encoder->encoder_id) { 307 case ENCODER_OBJECT_ID_TRAVIS: 308 case ENCODER_OBJECT_ID_NUTMEG: 309 return radeon_encoder->encoder_id; 310 default: 311 return ENCODER_OBJECT_ID_NONE; 312 } 313 } 314 return ENCODER_OBJECT_ID_NONE; 315 } 316 317 void radeon_panel_mode_fixup(struct drm_encoder *encoder, 318 struct drm_display_mode *adjusted_mode) 319 { 320 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 321 struct drm_device *dev = encoder->dev; 322 struct radeon_device *rdev = dev->dev_private; 323 struct drm_display_mode *native_mode = &radeon_encoder->native_mode; 324 unsigned hblank = native_mode->htotal - native_mode->hdisplay; 325 unsigned vblank = native_mode->vtotal - native_mode->vdisplay; 326 unsigned hover = native_mode->hsync_start - native_mode->hdisplay; 327 unsigned vover = native_mode->vsync_start - native_mode->vdisplay; 328 unsigned hsync_width = native_mode->hsync_end - native_mode->hsync_start; 329 unsigned vsync_width = native_mode->vsync_end - native_mode->vsync_start; 330 331 adjusted_mode->clock = native_mode->clock; 332 adjusted_mode->flags = native_mode->flags; 333 334 if (ASIC_IS_AVIVO(rdev)) { 335 adjusted_mode->hdisplay = native_mode->hdisplay; 336 adjusted_mode->vdisplay = native_mode->vdisplay; 337 } 338 339 adjusted_mode->htotal = native_mode->hdisplay + hblank; 340 adjusted_mode->hsync_start = native_mode->hdisplay + hover; 341 adjusted_mode->hsync_end = adjusted_mode->hsync_start + hsync_width; 342 343 adjusted_mode->vtotal = native_mode->vdisplay + vblank; 344 adjusted_mode->vsync_start = native_mode->vdisplay + vover; 345 adjusted_mode->vsync_end = adjusted_mode->vsync_start + vsync_width; 346 347 drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V); 348 349 if (ASIC_IS_AVIVO(rdev)) { 350 adjusted_mode->crtc_hdisplay = native_mode->hdisplay; 351 adjusted_mode->crtc_vdisplay = native_mode->vdisplay; 352 } 353 354 adjusted_mode->crtc_htotal = adjusted_mode->crtc_hdisplay + hblank; 355 adjusted_mode->crtc_hsync_start = adjusted_mode->crtc_hdisplay + hover; 356 adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width; 357 358 adjusted_mode->crtc_vtotal = adjusted_mode->crtc_vdisplay + vblank; 359 adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + vover; 360 adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width; 361 362 } 363 364 bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder, 365 u32 pixel_clock) 366 { 367 struct drm_device *dev = encoder->dev; 368 struct radeon_device *rdev = dev->dev_private; 369 struct drm_connector *connector; 370 struct radeon_connector *radeon_connector; 371 struct radeon_connector_atom_dig *dig_connector; 372 373 connector = radeon_get_connector_for_encoder(encoder); 374 /* if we don't have an active device yet, just use one of 375 * the connectors tied to the encoder. 376 */ 377 if (!connector) 378 connector = radeon_get_connector_for_encoder_init(encoder); 379 radeon_connector = to_radeon_connector(connector); 380 381 switch (connector->connector_type) { 382 case DRM_MODE_CONNECTOR_DVII: 383 case DRM_MODE_CONNECTOR_HDMIB: 384 if (radeon_connector->use_digital) { 385 /* HDMI 1.3 supports up to 340 Mhz over single link */ 386 if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) { 387 if (pixel_clock > 340000) 388 return true; 389 else 390 return false; 391 } else { 392 if (pixel_clock > 165000) 393 return true; 394 else 395 return false; 396 } 397 } else 398 return false; 399 case DRM_MODE_CONNECTOR_DVID: 400 case DRM_MODE_CONNECTOR_HDMIA: 401 case DRM_MODE_CONNECTOR_DisplayPort: 402 dig_connector = radeon_connector->con_priv; 403 if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) || 404 (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) 405 return false; 406 else { 407 /* HDMI 1.3 supports up to 340 Mhz over single link */ 408 if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) { 409 if (pixel_clock > 340000) 410 return true; 411 else 412 return false; 413 } else { 414 if (pixel_clock > 165000) 415 return true; 416 else 417 return false; 418 } 419 } 420 default: 421 return false; 422 } 423 } 424 425 bool radeon_encoder_is_digital(struct drm_encoder *encoder) 426 { 427 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 428 switch (radeon_encoder->encoder_id) { 429 case ENCODER_OBJECT_ID_INTERNAL_LVDS: 430 case ENCODER_OBJECT_ID_INTERNAL_TMDS1: 431 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1: 432 case ENCODER_OBJECT_ID_INTERNAL_LVTM1: 433 case ENCODER_OBJECT_ID_INTERNAL_DVO1: 434 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1: 435 case ENCODER_OBJECT_ID_INTERNAL_DDI: 436 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY: 437 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA: 438 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1: 439 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2: 440 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3: 441 return true; 442 default: 443 return false; 444 } 445 } 446