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