1 /* $NetBSD: radeon_encoders.c,v 1.3 2021/12/18 23:45:43 riastradh Exp $ */ 2 3 /* 4 * Copyright 2007-8 Advanced Micro Devices, Inc. 5 * Copyright 2008 Red Hat Inc. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23 * OTHER DEALINGS IN THE SOFTWARE. 24 * 25 * Authors: Dave Airlie 26 * Alex Deucher 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: radeon_encoders.c,v 1.3 2021/12/18 23:45:43 riastradh Exp $"); 31 32 #include <linux/pci.h> 33 34 #include <drm/drm_crtc_helper.h> 35 #include <drm/drm_device.h> 36 #include <drm/radeon_drm.h> 37 38 #include "radeon.h" 39 #include "atom.h" 40 41 extern void 42 radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder, 43 struct drm_connector *drm_connector); 44 extern void 45 radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder, 46 struct drm_connector *drm_connector); 47 48 49 static uint32_t radeon_encoder_clones(struct drm_encoder *encoder) 50 { 51 struct drm_device *dev = encoder->dev; 52 struct radeon_device *rdev = dev->dev_private; 53 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 54 struct drm_encoder *clone_encoder; 55 uint32_t index_mask = 0; 56 int count; 57 58 /* DIG routing gets problematic */ 59 if (rdev->family >= CHIP_R600) 60 return index_mask; 61 /* LVDS/TV are too wacky */ 62 if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT) 63 return index_mask; 64 /* DVO requires 2x ppll clocks depending on tmds chip */ 65 if (radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT) 66 return index_mask; 67 68 count = -1; 69 list_for_each_entry(clone_encoder, &dev->mode_config.encoder_list, head) { 70 struct radeon_encoder *radeon_clone = to_radeon_encoder(clone_encoder); 71 count++; 72 73 if (clone_encoder == encoder) 74 continue; 75 if (radeon_clone->devices & (ATOM_DEVICE_LCD_SUPPORT)) 76 continue; 77 if (radeon_clone->devices & ATOM_DEVICE_DFP2_SUPPORT) 78 continue; 79 else 80 index_mask |= (1 << count); 81 } 82 return index_mask; 83 } 84 85 void radeon_setup_encoder_clones(struct drm_device *dev) 86 { 87 struct drm_encoder *encoder; 88 89 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 90 encoder->possible_clones = radeon_encoder_clones(encoder); 91 } 92 } 93 94 uint32_t 95 radeon_get_encoder_enum(struct drm_device *dev, uint32_t supported_device, uint8_t dac) 96 { 97 struct radeon_device *rdev = dev->dev_private; 98 uint32_t ret = 0; 99 100 switch (supported_device) { 101 case ATOM_DEVICE_CRT1_SUPPORT: 102 case ATOM_DEVICE_TV1_SUPPORT: 103 case ATOM_DEVICE_TV2_SUPPORT: 104 case ATOM_DEVICE_CRT2_SUPPORT: 105 case ATOM_DEVICE_CV_SUPPORT: 106 switch (dac) { 107 case 1: /* dac a */ 108 if ((rdev->family == CHIP_RS300) || 109 (rdev->family == CHIP_RS400) || 110 (rdev->family == CHIP_RS480)) 111 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1; 112 else if (ASIC_IS_AVIVO(rdev)) 113 ret = ENCODER_INTERNAL_KLDSCP_DAC1_ENUM_ID1; 114 else 115 ret = ENCODER_INTERNAL_DAC1_ENUM_ID1; 116 break; 117 case 2: /* dac b */ 118 if (ASIC_IS_AVIVO(rdev)) 119 ret = ENCODER_INTERNAL_KLDSCP_DAC2_ENUM_ID1; 120 else { 121 /*if (rdev->family == CHIP_R200) 122 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1; 123 else*/ 124 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1; 125 } 126 break; 127 case 3: /* external dac */ 128 if (ASIC_IS_AVIVO(rdev)) 129 ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1; 130 else 131 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1; 132 break; 133 } 134 break; 135 case ATOM_DEVICE_LCD1_SUPPORT: 136 if (ASIC_IS_AVIVO(rdev)) 137 ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1; 138 else 139 ret = ENCODER_INTERNAL_LVDS_ENUM_ID1; 140 break; 141 case ATOM_DEVICE_DFP1_SUPPORT: 142 if ((rdev->family == CHIP_RS300) || 143 (rdev->family == CHIP_RS400) || 144 (rdev->family == CHIP_RS480)) 145 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1; 146 else if (ASIC_IS_AVIVO(rdev)) 147 ret = ENCODER_INTERNAL_KLDSCP_TMDS1_ENUM_ID1; 148 else 149 ret = ENCODER_INTERNAL_TMDS1_ENUM_ID1; 150 break; 151 case ATOM_DEVICE_LCD2_SUPPORT: 152 case ATOM_DEVICE_DFP2_SUPPORT: 153 if ((rdev->family == CHIP_RS600) || 154 (rdev->family == CHIP_RS690) || 155 (rdev->family == CHIP_RS740)) 156 ret = ENCODER_INTERNAL_DDI_ENUM_ID1; 157 else if (ASIC_IS_AVIVO(rdev)) 158 ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1; 159 else 160 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1; 161 break; 162 case ATOM_DEVICE_DFP3_SUPPORT: 163 ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1; 164 break; 165 } 166 167 return ret; 168 } 169 170 static void radeon_encoder_add_backlight(struct radeon_encoder *radeon_encoder, 171 struct drm_connector *connector) 172 { 173 struct drm_device *dev = radeon_encoder->base.dev; 174 struct radeon_device *rdev = dev->dev_private; 175 bool use_bl = false; 176 177 if (!(radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))) 178 return; 179 180 if (radeon_backlight == 0) { 181 return; 182 } else if (radeon_backlight == 1) { 183 use_bl = true; 184 } else if (radeon_backlight == -1) { 185 /* Quirks */ 186 /* Amilo Xi 2550 only works with acpi bl */ 187 if ((rdev->pdev->device == 0x9583) && 188 (rdev->pdev->subsystem_vendor == 0x1734) && 189 (rdev->pdev->subsystem_device == 0x1107)) 190 use_bl = false; 191 /* Older PPC macs use on-GPU backlight controller */ 192 #ifndef CONFIG_PPC_PMAC 193 /* disable native backlight control on older asics */ 194 else if (rdev->family < CHIP_R600) 195 use_bl = false; 196 #endif 197 else 198 use_bl = true; 199 } 200 201 if (use_bl) { 202 if (rdev->is_atom_bios) 203 radeon_atom_backlight_init(radeon_encoder, connector); 204 else 205 radeon_legacy_backlight_init(radeon_encoder, connector); 206 } 207 } 208 209 void 210 radeon_link_encoder_connector(struct drm_device *dev) 211 { 212 struct drm_connector *connector; 213 struct radeon_connector *radeon_connector; 214 struct drm_encoder *encoder; 215 struct radeon_encoder *radeon_encoder; 216 217 /* walk the list and link encoders to connectors */ 218 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 219 radeon_connector = to_radeon_connector(connector); 220 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 221 radeon_encoder = to_radeon_encoder(encoder); 222 if (radeon_encoder->devices & radeon_connector->devices) { 223 drm_connector_attach_encoder(connector, encoder); 224 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) 225 radeon_encoder_add_backlight(radeon_encoder, connector); 226 } 227 } 228 } 229 } 230 231 void radeon_encoder_set_active_device(struct drm_encoder *encoder) 232 { 233 struct drm_device *dev = encoder->dev; 234 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 235 struct drm_connector *connector; 236 237 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 238 if (connector->encoder == encoder) { 239 struct radeon_connector *radeon_connector = to_radeon_connector(connector); 240 radeon_encoder->active_device = radeon_encoder->devices & radeon_connector->devices; 241 DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n", 242 radeon_encoder->active_device, radeon_encoder->devices, 243 radeon_connector->devices, encoder->encoder_type); 244 } 245 } 246 } 247 248 struct drm_connector * 249 radeon_get_connector_for_encoder(struct drm_encoder *encoder) 250 { 251 struct drm_device *dev = encoder->dev; 252 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 253 struct drm_connector *connector; 254 struct radeon_connector *radeon_connector; 255 256 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 257 radeon_connector = to_radeon_connector(connector); 258 if (radeon_encoder->is_mst_encoder) { 259 struct radeon_encoder_mst *mst_enc; 260 261 if (!radeon_connector->is_mst_connector) 262 continue; 263 264 mst_enc = radeon_encoder->enc_priv; 265 if (mst_enc->connector == radeon_connector->mst_port) 266 return connector; 267 } else if (radeon_encoder->active_device & radeon_connector->devices) 268 return connector; 269 } 270 return NULL; 271 } 272 273 struct drm_connector * 274 radeon_get_connector_for_encoder_init(struct drm_encoder *encoder) 275 { 276 struct drm_device *dev = encoder->dev; 277 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 278 struct drm_connector *connector; 279 struct radeon_connector *radeon_connector; 280 281 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 282 radeon_connector = to_radeon_connector(connector); 283 if (radeon_encoder->devices & radeon_connector->devices) 284 return connector; 285 } 286 return NULL; 287 } 288 289 struct drm_encoder *radeon_get_external_encoder(struct drm_encoder *encoder) 290 { 291 struct drm_device *dev = encoder->dev; 292 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 293 struct drm_encoder *other_encoder; 294 struct radeon_encoder *other_radeon_encoder; 295 296 if (radeon_encoder->is_ext_encoder) 297 return NULL; 298 299 list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) { 300 if (other_encoder == encoder) 301 continue; 302 other_radeon_encoder = to_radeon_encoder(other_encoder); 303 if (other_radeon_encoder->is_ext_encoder && 304 (radeon_encoder->devices & other_radeon_encoder->devices)) 305 return other_encoder; 306 } 307 return NULL; 308 } 309 310 u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder) 311 { 312 struct drm_encoder *other_encoder = radeon_get_external_encoder(encoder); 313 314 if (other_encoder) { 315 struct radeon_encoder *radeon_encoder = to_radeon_encoder(other_encoder); 316 317 switch (radeon_encoder->encoder_id) { 318 case ENCODER_OBJECT_ID_TRAVIS: 319 case ENCODER_OBJECT_ID_NUTMEG: 320 return radeon_encoder->encoder_id; 321 default: 322 return ENCODER_OBJECT_ID_NONE; 323 } 324 } 325 return ENCODER_OBJECT_ID_NONE; 326 } 327 328 void radeon_panel_mode_fixup(struct drm_encoder *encoder, 329 struct drm_display_mode *adjusted_mode) 330 { 331 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 332 struct drm_device *dev = encoder->dev; 333 struct radeon_device *rdev = dev->dev_private; 334 struct drm_display_mode *native_mode = &radeon_encoder->native_mode; 335 unsigned hblank = native_mode->htotal - native_mode->hdisplay; 336 unsigned vblank = native_mode->vtotal - native_mode->vdisplay; 337 unsigned hover = native_mode->hsync_start - native_mode->hdisplay; 338 unsigned vover = native_mode->vsync_start - native_mode->vdisplay; 339 unsigned hsync_width = native_mode->hsync_end - native_mode->hsync_start; 340 unsigned vsync_width = native_mode->vsync_end - native_mode->vsync_start; 341 342 adjusted_mode->clock = native_mode->clock; 343 adjusted_mode->flags = native_mode->flags; 344 345 if (ASIC_IS_AVIVO(rdev)) { 346 adjusted_mode->hdisplay = native_mode->hdisplay; 347 adjusted_mode->vdisplay = native_mode->vdisplay; 348 } 349 350 adjusted_mode->htotal = native_mode->hdisplay + hblank; 351 adjusted_mode->hsync_start = native_mode->hdisplay + hover; 352 adjusted_mode->hsync_end = adjusted_mode->hsync_start + hsync_width; 353 354 adjusted_mode->vtotal = native_mode->vdisplay + vblank; 355 adjusted_mode->vsync_start = native_mode->vdisplay + vover; 356 adjusted_mode->vsync_end = adjusted_mode->vsync_start + vsync_width; 357 358 drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V); 359 360 if (ASIC_IS_AVIVO(rdev)) { 361 adjusted_mode->crtc_hdisplay = native_mode->hdisplay; 362 adjusted_mode->crtc_vdisplay = native_mode->vdisplay; 363 } 364 365 adjusted_mode->crtc_htotal = adjusted_mode->crtc_hdisplay + hblank; 366 adjusted_mode->crtc_hsync_start = adjusted_mode->crtc_hdisplay + hover; 367 adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width; 368 369 adjusted_mode->crtc_vtotal = adjusted_mode->crtc_vdisplay + vblank; 370 adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + vover; 371 adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width; 372 373 } 374 375 bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder, 376 u32 pixel_clock) 377 { 378 struct drm_device *dev = encoder->dev; 379 struct radeon_device *rdev = dev->dev_private; 380 struct drm_connector *connector; 381 struct radeon_connector *radeon_connector; 382 struct radeon_connector_atom_dig *dig_connector; 383 384 connector = radeon_get_connector_for_encoder(encoder); 385 /* if we don't have an active device yet, just use one of 386 * the connectors tied to the encoder. 387 */ 388 if (!connector) 389 connector = radeon_get_connector_for_encoder_init(encoder); 390 radeon_connector = to_radeon_connector(connector); 391 392 switch (connector->connector_type) { 393 case DRM_MODE_CONNECTOR_DVII: 394 case DRM_MODE_CONNECTOR_HDMIB: 395 if (radeon_connector->use_digital) { 396 /* HDMI 1.3 supports up to 340 Mhz over single link */ 397 if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) { 398 if (pixel_clock > 340000) 399 return true; 400 else 401 return false; 402 } else { 403 if (pixel_clock > 165000) 404 return true; 405 else 406 return false; 407 } 408 } else 409 return false; 410 case DRM_MODE_CONNECTOR_DVID: 411 case DRM_MODE_CONNECTOR_HDMIA: 412 case DRM_MODE_CONNECTOR_DisplayPort: 413 if (radeon_connector->is_mst_connector) 414 return false; 415 416 dig_connector = radeon_connector->con_priv; 417 if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) || 418 (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) 419 return false; 420 else { 421 /* HDMI 1.3 supports up to 340 Mhz over single link */ 422 if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) { 423 if (pixel_clock > 340000) 424 return true; 425 else 426 return false; 427 } else { 428 if (pixel_clock > 165000) 429 return true; 430 else 431 return false; 432 } 433 } 434 default: 435 return false; 436 } 437 } 438 439 bool radeon_encoder_is_digital(struct drm_encoder *encoder) 440 { 441 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 442 switch (radeon_encoder->encoder_id) { 443 case ENCODER_OBJECT_ID_INTERNAL_LVDS: 444 case ENCODER_OBJECT_ID_INTERNAL_TMDS1: 445 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1: 446 case ENCODER_OBJECT_ID_INTERNAL_LVTM1: 447 case ENCODER_OBJECT_ID_INTERNAL_DVO1: 448 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1: 449 case ENCODER_OBJECT_ID_INTERNAL_DDI: 450 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY: 451 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA: 452 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1: 453 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2: 454 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3: 455 return true; 456 default: 457 return false; 458 } 459 } 460
Indexes created Sun Sep 21 16:09:51 GMT 2025