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_edid.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
radeon_encoder_clones(struct drm_encoder * encoder)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
63 count++;
64
65 if (clone_encoder == encoder)
66 continue;
67 if (radeon_clone->devices & (ATOM_DEVICE_LCD_SUPPORT))
68 continue;
69 if (radeon_clone->devices & ATOM_DEVICE_DFP2_SUPPORT)
70 continue;
71 else
72 index_mask |= (1 << count);
73 }
74 return index_mask;
75 }
76
radeon_setup_encoder_clones(struct drm_device * dev)77 void radeon_setup_encoder_clones(struct drm_device *dev)
78 {
79 struct drm_encoder *encoder;
80
81 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
82 encoder->possible_clones = radeon_encoder_clones(encoder);
83 }
84 }
85
86 uint32_t
radeon_get_encoder_enum(struct drm_device * dev,uint32_t supported_device,uint8_t dac)87 radeon_get_encoder_enum(struct drm_device *dev, uint32_t supported_device, uint8_t dac)
88 {
89 struct radeon_device *rdev = dev->dev_private;
90 uint32_t ret = 0;
91
92 switch (supported_device) {
93 case ATOM_DEVICE_CRT1_SUPPORT:
94 case ATOM_DEVICE_TV1_SUPPORT:
95 case ATOM_DEVICE_TV2_SUPPORT:
96 case ATOM_DEVICE_CRT2_SUPPORT:
97 case ATOM_DEVICE_CV_SUPPORT:
98 switch (dac) {
99 case 1: /* dac a */
100 if ((rdev->family == CHIP_RS300) ||
101 (rdev->family == CHIP_RS400) ||
102 (rdev->family == CHIP_RS480))
103 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
104 else if (ASIC_IS_AVIVO(rdev))
105 ret = ENCODER_INTERNAL_KLDSCP_DAC1_ENUM_ID1;
106 else
107 ret = ENCODER_INTERNAL_DAC1_ENUM_ID1;
108 break;
109 case 2: /* dac b */
110 if (ASIC_IS_AVIVO(rdev))
111 ret = ENCODER_INTERNAL_KLDSCP_DAC2_ENUM_ID1;
112 else {
113 /* if (rdev->family == CHIP_R200)
114 * ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
115 * else
116 */
117 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
118 }
119 break;
120 case 3: /* external dac */
121 if (ASIC_IS_AVIVO(rdev))
122 ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
123 else
124 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
125 break;
126 }
127 break;
128 case ATOM_DEVICE_LCD1_SUPPORT:
129 if (ASIC_IS_AVIVO(rdev))
130 ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
131 else
132 ret = ENCODER_INTERNAL_LVDS_ENUM_ID1;
133 break;
134 case ATOM_DEVICE_DFP1_SUPPORT:
135 if ((rdev->family == CHIP_RS300) ||
136 (rdev->family == CHIP_RS400) ||
137 (rdev->family == CHIP_RS480))
138 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
139 else if (ASIC_IS_AVIVO(rdev))
140 ret = ENCODER_INTERNAL_KLDSCP_TMDS1_ENUM_ID1;
141 else
142 ret = ENCODER_INTERNAL_TMDS1_ENUM_ID1;
143 break;
144 case ATOM_DEVICE_LCD2_SUPPORT:
145 case ATOM_DEVICE_DFP2_SUPPORT:
146 if ((rdev->family == CHIP_RS600) ||
147 (rdev->family == CHIP_RS690) ||
148 (rdev->family == CHIP_RS740))
149 ret = ENCODER_INTERNAL_DDI_ENUM_ID1;
150 else if (ASIC_IS_AVIVO(rdev))
151 ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
152 else
153 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
154 break;
155 case ATOM_DEVICE_DFP3_SUPPORT:
156 ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
157 break;
158 }
159
160 return ret;
161 }
162
radeon_encoder_add_backlight(struct radeon_encoder * radeon_encoder,struct drm_connector * connector)163 static void radeon_encoder_add_backlight(struct radeon_encoder *radeon_encoder,
164 struct drm_connector *connector)
165 {
166 struct drm_device *dev = radeon_encoder->base.dev;
167 struct radeon_device *rdev = dev->dev_private;
168 bool use_bl = false;
169
170 if (!(radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)))
171 return;
172
173 if (radeon_backlight == 0) {
174 use_bl = false;
175 } else if (radeon_backlight == 1) {
176 use_bl = true;
177 } else if (radeon_backlight == -1) {
178 /* Quirks */
179 /* Amilo Xi 2550 only works with acpi bl */
180 if ((rdev->pdev->device == 0x9583) &&
181 (rdev->pdev->subsystem_vendor == 0x1734) &&
182 (rdev->pdev->subsystem_device == 0x1107))
183 use_bl = false;
184 /* Older PPC macs use on-GPU backlight controller */
185 #ifndef CONFIG_PPC_PMAC
186 /* disable native backlight control on older asics */
187 else if (rdev->family < CHIP_R600)
188 use_bl = false;
189 #endif
190 else
191 use_bl = true;
192 }
193
194 if (use_bl) {
195 if (rdev->is_atom_bios)
196 radeon_atom_backlight_init(radeon_encoder, connector);
197 else
198 radeon_legacy_backlight_init(radeon_encoder, connector);
199 }
200
201 /*
202 * If there is no native backlight device (which may happen even when
203 * use_bl==true) try registering an ACPI video backlight device instead.
204 */
205 if (!rdev->mode_info.bl_encoder)
206 acpi_video_register_backlight();
207 }
208
209 void
radeon_link_encoder_connector(struct drm_device * dev)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
radeon_encoder_set_active_device(struct drm_encoder * encoder)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
241 radeon_encoder->active_device = radeon_encoder->devices & radeon_connector->devices;
242 DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n",
243 radeon_encoder->active_device, radeon_encoder->devices,
244 radeon_connector->devices, encoder->encoder_type);
245 }
246 }
247 }
248
249 struct drm_connector *
radeon_get_connector_for_encoder(struct drm_encoder * encoder)250 radeon_get_connector_for_encoder(struct drm_encoder *encoder)
251 {
252 struct drm_device *dev = encoder->dev;
253 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
254 struct drm_connector *connector;
255 struct radeon_connector *radeon_connector;
256
257 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
258 radeon_connector = to_radeon_connector(connector);
259 if (radeon_encoder->active_device & radeon_connector->devices)
260 return connector;
261 }
262 return NULL;
263 }
264
265 struct drm_connector *
radeon_get_connector_for_encoder_init(struct drm_encoder * encoder)266 radeon_get_connector_for_encoder_init(struct drm_encoder *encoder)
267 {
268 struct drm_device *dev = encoder->dev;
269 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
270 struct drm_connector *connector;
271 struct radeon_connector *radeon_connector;
272
273 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
274 radeon_connector = to_radeon_connector(connector);
275 if (radeon_encoder->devices & radeon_connector->devices)
276 return connector;
277 }
278 return NULL;
279 }
280
radeon_get_external_encoder(struct drm_encoder * encoder)281 struct drm_encoder *radeon_get_external_encoder(struct drm_encoder *encoder)
282 {
283 struct drm_device *dev = encoder->dev;
284 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
285 struct drm_encoder *other_encoder;
286 struct radeon_encoder *other_radeon_encoder;
287
288 if (radeon_encoder->is_ext_encoder)
289 return NULL;
290
291 list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) {
292 if (other_encoder == encoder)
293 continue;
294 other_radeon_encoder = to_radeon_encoder(other_encoder);
295 if (other_radeon_encoder->is_ext_encoder &&
296 (radeon_encoder->devices & other_radeon_encoder->devices))
297 return other_encoder;
298 }
299 return NULL;
300 }
301
radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder * encoder)302 u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder)
303 {
304 struct drm_encoder *other_encoder = radeon_get_external_encoder(encoder);
305
306 if (other_encoder) {
307 struct radeon_encoder *radeon_encoder = to_radeon_encoder(other_encoder);
308
309 switch (radeon_encoder->encoder_id) {
310 case ENCODER_OBJECT_ID_TRAVIS:
311 case ENCODER_OBJECT_ID_NUTMEG:
312 return radeon_encoder->encoder_id;
313 default:
314 return ENCODER_OBJECT_ID_NONE;
315 }
316 }
317 return ENCODER_OBJECT_ID_NONE;
318 }
319
radeon_panel_mode_fixup(struct drm_encoder * encoder,struct drm_display_mode * adjusted_mode)320 void radeon_panel_mode_fixup(struct drm_encoder *encoder,
321 struct drm_display_mode *adjusted_mode)
322 {
323 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
324 struct drm_device *dev = encoder->dev;
325 struct radeon_device *rdev = dev->dev_private;
326 struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
327 unsigned int hblank = native_mode->htotal - native_mode->hdisplay;
328 unsigned int vblank = native_mode->vtotal - native_mode->vdisplay;
329 unsigned int hover = native_mode->hsync_start - native_mode->hdisplay;
330 unsigned int vover = native_mode->vsync_start - native_mode->vdisplay;
331 unsigned int hsync_width = native_mode->hsync_end - native_mode->hsync_start;
332 unsigned int vsync_width = native_mode->vsync_end - native_mode->vsync_start;
333
334 adjusted_mode->clock = native_mode->clock;
335 adjusted_mode->flags = native_mode->flags;
336
337 if (ASIC_IS_AVIVO(rdev)) {
338 adjusted_mode->hdisplay = native_mode->hdisplay;
339 adjusted_mode->vdisplay = native_mode->vdisplay;
340 }
341
342 adjusted_mode->htotal = native_mode->hdisplay + hblank;
343 adjusted_mode->hsync_start = native_mode->hdisplay + hover;
344 adjusted_mode->hsync_end = adjusted_mode->hsync_start + hsync_width;
345
346 adjusted_mode->vtotal = native_mode->vdisplay + vblank;
347 adjusted_mode->vsync_start = native_mode->vdisplay + vover;
348 adjusted_mode->vsync_end = adjusted_mode->vsync_start + vsync_width;
349
350 drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
351
352 if (ASIC_IS_AVIVO(rdev)) {
353 adjusted_mode->crtc_hdisplay = native_mode->hdisplay;
354 adjusted_mode->crtc_vdisplay = native_mode->vdisplay;
355 }
356
357 adjusted_mode->crtc_htotal = adjusted_mode->crtc_hdisplay + hblank;
358 adjusted_mode->crtc_hsync_start = adjusted_mode->crtc_hdisplay + hover;
359 adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width;
360
361 adjusted_mode->crtc_vtotal = adjusted_mode->crtc_vdisplay + vblank;
362 adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + vover;
363 adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width;
364
365 }
366
radeon_dig_monitor_is_duallink(struct drm_encoder * encoder,u32 pixel_clock)367 bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
368 u32 pixel_clock)
369 {
370 struct drm_device *dev = encoder->dev;
371 struct radeon_device *rdev = dev->dev_private;
372 struct drm_connector *connector;
373 struct radeon_connector *radeon_connector;
374 struct radeon_connector_atom_dig *dig_connector;
375
376 connector = radeon_get_connector_for_encoder(encoder);
377 /* if we don't have an active device yet, just use one of
378 * the connectors tied to the encoder.
379 */
380 if (!connector)
381 connector = radeon_get_connector_for_encoder_init(encoder);
382 radeon_connector = to_radeon_connector(connector);
383
384 switch (connector->connector_type) {
385 case DRM_MODE_CONNECTOR_DVII:
386 case DRM_MODE_CONNECTOR_HDMIB:
387 if (radeon_connector->use_digital) {
388 /* HDMI 1.3 supports up to 340 Mhz over single link */
389 if (ASIC_IS_DCE6(rdev) && connector->display_info.is_hdmi) {
390 if (pixel_clock > 340000)
391 return true;
392 else
393 return false;
394 } else {
395 if (pixel_clock > 165000)
396 return true;
397 else
398 return false;
399 }
400 } else
401 return false;
402 case DRM_MODE_CONNECTOR_DVID:
403 case DRM_MODE_CONNECTOR_HDMIA:
404 case DRM_MODE_CONNECTOR_DisplayPort:
405 dig_connector = radeon_connector->con_priv;
406 if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
407 (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
408 return false;
409 else {
410 /* HDMI 1.3 supports up to 340 Mhz over single link */
411 if (ASIC_IS_DCE6(rdev) && connector->display_info.is_hdmi) {
412 if (pixel_clock > 340000)
413 return true;
414 else
415 return false;
416 } else {
417 if (pixel_clock > 165000)
418 return true;
419 else
420 return false;
421 }
422 }
423 default:
424 return false;
425 }
426 }
427
radeon_encoder_is_digital(struct drm_encoder * encoder)428 bool radeon_encoder_is_digital(struct drm_encoder *encoder)
429 {
430 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
431
432 switch (radeon_encoder->encoder_id) {
433 case ENCODER_OBJECT_ID_INTERNAL_LVDS:
434 case ENCODER_OBJECT_ID_INTERNAL_TMDS1:
435 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
436 case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
437 case ENCODER_OBJECT_ID_INTERNAL_DVO1:
438 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
439 case ENCODER_OBJECT_ID_INTERNAL_DDI:
440 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
441 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
442 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
443 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
444 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3:
445 return true;
446 default:
447 return false;
448 }
449 }
450