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 "radeon_atombios.h"
35 #include "radeon_legacy_encoders.h"
36 #include "atom.h"
37
radeon_encoder_clones(struct drm_encoder * encoder)38 static uint32_t radeon_encoder_clones(struct drm_encoder *encoder)
39 {
40 struct drm_device *dev = encoder->dev;
41 struct radeon_device *rdev = dev->dev_private;
42 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
43 struct drm_encoder *clone_encoder;
44 uint32_t index_mask = 0;
45 int count;
46
47 /* DIG routing gets problematic */
48 if (rdev->family >= CHIP_R600)
49 return index_mask;
50 /* LVDS/TV are too wacky */
51 if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT)
52 return index_mask;
53 /* DVO requires 2x ppll clocks depending on tmds chip */
54 if (radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT)
55 return index_mask;
56
57 count = -1;
58 list_for_each_entry(clone_encoder, &dev->mode_config.encoder_list, head) {
59 struct radeon_encoder *radeon_clone = to_radeon_encoder(clone_encoder);
60 count++;
61
62 if (clone_encoder == encoder)
63 continue;
64 if (radeon_clone->devices & (ATOM_DEVICE_LCD_SUPPORT))
65 continue;
66 if (radeon_clone->devices & ATOM_DEVICE_DFP2_SUPPORT)
67 continue;
68 else
69 index_mask |= (1 << count);
70 }
71 return index_mask;
72 }
73
radeon_setup_encoder_clones(struct drm_device * dev)74 void radeon_setup_encoder_clones(struct drm_device *dev)
75 {
76 struct drm_encoder *encoder;
77
78 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
79 encoder->possible_clones = radeon_encoder_clones(encoder);
80 }
81 }
82
83 uint32_t
radeon_get_encoder_enum(struct drm_device * dev,uint32_t supported_device,uint8_t dac)84 radeon_get_encoder_enum(struct drm_device *dev, uint32_t supported_device, uint8_t dac)
85 {
86 struct radeon_device *rdev = dev->dev_private;
87 uint32_t ret = 0;
88
89 switch (supported_device) {
90 case ATOM_DEVICE_CRT1_SUPPORT:
91 case ATOM_DEVICE_TV1_SUPPORT:
92 case ATOM_DEVICE_TV2_SUPPORT:
93 case ATOM_DEVICE_CRT2_SUPPORT:
94 case ATOM_DEVICE_CV_SUPPORT:
95 switch (dac) {
96 case 1: /* dac a */
97 if ((rdev->family == CHIP_RS300) ||
98 (rdev->family == CHIP_RS400) ||
99 (rdev->family == CHIP_RS480))
100 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
101 else if (ASIC_IS_AVIVO(rdev))
102 ret = ENCODER_INTERNAL_KLDSCP_DAC1_ENUM_ID1;
103 else
104 ret = ENCODER_INTERNAL_DAC1_ENUM_ID1;
105 break;
106 case 2: /* dac b */
107 if (ASIC_IS_AVIVO(rdev))
108 ret = ENCODER_INTERNAL_KLDSCP_DAC2_ENUM_ID1;
109 else {
110 /*if (rdev->family == CHIP_R200)
111 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
112 else*/
113 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
114 }
115 break;
116 case 3: /* external dac */
117 if (ASIC_IS_AVIVO(rdev))
118 ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
119 else
120 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
121 break;
122 }
123 break;
124 case ATOM_DEVICE_LCD1_SUPPORT:
125 if (ASIC_IS_AVIVO(rdev))
126 ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
127 else
128 ret = ENCODER_INTERNAL_LVDS_ENUM_ID1;
129 break;
130 case ATOM_DEVICE_DFP1_SUPPORT:
131 if ((rdev->family == CHIP_RS300) ||
132 (rdev->family == CHIP_RS400) ||
133 (rdev->family == CHIP_RS480))
134 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
135 else if (ASIC_IS_AVIVO(rdev))
136 ret = ENCODER_INTERNAL_KLDSCP_TMDS1_ENUM_ID1;
137 else
138 ret = ENCODER_INTERNAL_TMDS1_ENUM_ID1;
139 break;
140 case ATOM_DEVICE_LCD2_SUPPORT:
141 case ATOM_DEVICE_DFP2_SUPPORT:
142 if ((rdev->family == CHIP_RS600) ||
143 (rdev->family == CHIP_RS690) ||
144 (rdev->family == CHIP_RS740))
145 ret = ENCODER_INTERNAL_DDI_ENUM_ID1;
146 else if (ASIC_IS_AVIVO(rdev))
147 ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
148 else
149 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
150 break;
151 case ATOM_DEVICE_DFP3_SUPPORT:
152 ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
153 break;
154 }
155
156 return ret;
157 }
158
radeon_encoder_add_backlight(struct radeon_encoder * radeon_encoder,struct drm_connector * connector)159 static void radeon_encoder_add_backlight(struct radeon_encoder *radeon_encoder,
160 struct drm_connector *connector)
161 {
162 struct drm_device *dev = radeon_encoder->base.dev;
163 struct radeon_device *rdev = dev->dev_private;
164 bool use_bl = false;
165
166 if (!(radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)))
167 return;
168
169 if (radeon_backlight == 0) {
170 return;
171 } else if (radeon_backlight == 1) {
172 use_bl = true;
173 } else if (radeon_backlight == -1) {
174 /* Quirks */
175 /* Amilo Xi 2550 only works with acpi bl */
176 if ((rdev->pdev->device == 0x9583) &&
177 (rdev->pdev->subsystem_vendor == 0x1734) &&
178 (rdev->pdev->subsystem_device == 0x1107))
179 use_bl = false;
180 /* Older PPC macs use on-GPU backlight controller */
181 #ifndef CONFIG_PPC_PMAC
182 /* disable native backlight control on older asics */
183 else if (rdev->family < CHIP_R600)
184 use_bl = false;
185 #endif
186 else
187 use_bl = true;
188 }
189
190 if (use_bl) {
191 if (rdev->is_atom_bios)
192 radeon_atom_backlight_init(radeon_encoder, connector);
193 else
194 radeon_legacy_backlight_init(radeon_encoder, connector);
195 }
196 }
197
198 void
radeon_link_encoder_connector(struct drm_device * dev)199 radeon_link_encoder_connector(struct drm_device *dev)
200 {
201 struct drm_connector *connector;
202 struct radeon_connector *radeon_connector;
203 struct drm_encoder *encoder;
204 struct radeon_encoder *radeon_encoder;
205
206 /* walk the list and link encoders to connectors */
207 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
208 radeon_connector = to_radeon_connector(connector);
209 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
210 radeon_encoder = to_radeon_encoder(encoder);
211 if (radeon_encoder->devices & radeon_connector->devices) {
212 drm_connector_attach_encoder(connector, encoder);
213 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
214 radeon_encoder_add_backlight(radeon_encoder, connector);
215 }
216 }
217 }
218 }
219
radeon_encoder_set_active_device(struct drm_encoder * encoder)220 void radeon_encoder_set_active_device(struct drm_encoder *encoder)
221 {
222 struct drm_device *dev = encoder->dev;
223 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
224 struct drm_connector *connector;
225
226 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
227 if (connector->encoder == encoder) {
228 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
229 radeon_encoder->active_device = radeon_encoder->devices & radeon_connector->devices;
230 DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n",
231 radeon_encoder->active_device, radeon_encoder->devices,
232 radeon_connector->devices, encoder->encoder_type);
233 }
234 }
235 }
236
237 struct drm_connector *
radeon_get_connector_for_encoder(struct drm_encoder * encoder)238 radeon_get_connector_for_encoder(struct drm_encoder *encoder)
239 {
240 struct drm_device *dev = encoder->dev;
241 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
242 struct drm_connector *connector;
243 struct radeon_connector *radeon_connector;
244
245 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
246 radeon_connector = to_radeon_connector(connector);
247 if (radeon_encoder->is_mst_encoder) {
248 struct radeon_encoder_mst *mst_enc;
249
250 if (!radeon_connector->is_mst_connector)
251 continue;
252
253 mst_enc = radeon_encoder->enc_priv;
254 if (mst_enc->connector == radeon_connector->mst_port)
255 return connector;
256 } else if (radeon_encoder->active_device & radeon_connector->devices)
257 return connector;
258 }
259 return NULL;
260 }
261
262 struct drm_connector *
radeon_get_connector_for_encoder_init(struct drm_encoder * encoder)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
radeon_get_external_encoder(struct drm_encoder * encoder)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
radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder * encoder)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
radeon_panel_mode_fixup(struct drm_encoder * encoder,struct drm_display_mode * adjusted_mode)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
radeon_dig_monitor_is_duallink(struct drm_encoder * encoder,u32 pixel_clock)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 if (radeon_connector->is_mst_connector)
403 return false;
404
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) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
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 switch (radeon_encoder->encoder_id) {
432 case ENCODER_OBJECT_ID_INTERNAL_LVDS:
433 case ENCODER_OBJECT_ID_INTERNAL_TMDS1:
434 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
435 case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
436 case ENCODER_OBJECT_ID_INTERNAL_DVO1:
437 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
438 case ENCODER_OBJECT_ID_INTERNAL_DDI:
439 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
440 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
441 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
442 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
443 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3:
444 return true;
445 default:
446 return false;
447 }
448 }
449