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 #include <drm/drmP.h>
27 #include <drm/drm_crtc_helper.h>
28 #include <drm/radeon_drm.h>
29 #include "radeon.h"
30 #include "atom.h"
31
32
radeon_encoder_clones(struct drm_encoder * encoder)33 static uint32_t radeon_encoder_clones(struct drm_encoder *encoder)
34 {
35 struct drm_device *dev = encoder->dev;
36 struct radeon_device *rdev = dev->dev_private;
37 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
38 struct drm_encoder *clone_encoder;
39 uint32_t index_mask = 0;
40 int count;
41
42 /* DIG routing gets problematic */
43 if (rdev->family >= CHIP_R600)
44 return index_mask;
45 /* LVDS/TV are too wacky */
46 if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT)
47 return index_mask;
48 /* DVO requires 2x ppll clocks depending on tmds chip */
49 if (radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT)
50 return index_mask;
51
52 count = -1;
53 list_for_each_entry(clone_encoder, &dev->mode_config.encoder_list, head) {
54 struct radeon_encoder *radeon_clone = to_radeon_encoder(clone_encoder);
55 count++;
56
57 if (clone_encoder == encoder)
58 continue;
59 if (radeon_clone->devices & (ATOM_DEVICE_LCD_SUPPORT))
60 continue;
61 if (radeon_clone->devices & ATOM_DEVICE_DFP2_SUPPORT)
62 continue;
63 else
64 index_mask |= (1 << count);
65 }
66 return index_mask;
67 }
68
radeon_setup_encoder_clones(struct drm_device * dev)69 void radeon_setup_encoder_clones(struct drm_device *dev)
70 {
71 struct drm_encoder *encoder;
72
73 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
74 encoder->possible_clones = radeon_encoder_clones(encoder);
75 }
76 }
77
78 uint32_t
radeon_get_encoder_enum(struct drm_device * dev,uint32_t supported_device,uint8_t dac)79 radeon_get_encoder_enum(struct drm_device *dev, uint32_t supported_device, uint8_t dac)
80 {
81 struct radeon_device *rdev = dev->dev_private;
82 uint32_t ret = 0;
83
84 switch (supported_device) {
85 case ATOM_DEVICE_CRT1_SUPPORT:
86 case ATOM_DEVICE_TV1_SUPPORT:
87 case ATOM_DEVICE_TV2_SUPPORT:
88 case ATOM_DEVICE_CRT2_SUPPORT:
89 case ATOM_DEVICE_CV_SUPPORT:
90 switch (dac) {
91 case 1: /* dac a */
92 if ((rdev->family == CHIP_RS300) ||
93 (rdev->family == CHIP_RS400) ||
94 (rdev->family == CHIP_RS480))
95 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
96 else if (ASIC_IS_AVIVO(rdev))
97 ret = ENCODER_INTERNAL_KLDSCP_DAC1_ENUM_ID1;
98 else
99 ret = ENCODER_INTERNAL_DAC1_ENUM_ID1;
100 break;
101 case 2: /* dac b */
102 if (ASIC_IS_AVIVO(rdev))
103 ret = ENCODER_INTERNAL_KLDSCP_DAC2_ENUM_ID1;
104 else {
105 /*if (rdev->family == CHIP_R200)
106 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
107 else*/
108 ret = ENCODER_INTERNAL_DAC2_ENUM_ID1;
109 }
110 break;
111 case 3: /* external dac */
112 if (ASIC_IS_AVIVO(rdev))
113 ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
114 else
115 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
116 break;
117 }
118 break;
119 case ATOM_DEVICE_LCD1_SUPPORT:
120 if (ASIC_IS_AVIVO(rdev))
121 ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
122 else
123 ret = ENCODER_INTERNAL_LVDS_ENUM_ID1;
124 break;
125 case ATOM_DEVICE_DFP1_SUPPORT:
126 if ((rdev->family == CHIP_RS300) ||
127 (rdev->family == CHIP_RS400) ||
128 (rdev->family == CHIP_RS480))
129 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
130 else if (ASIC_IS_AVIVO(rdev))
131 ret = ENCODER_INTERNAL_KLDSCP_TMDS1_ENUM_ID1;
132 else
133 ret = ENCODER_INTERNAL_TMDS1_ENUM_ID1;
134 break;
135 case ATOM_DEVICE_LCD2_SUPPORT:
136 case ATOM_DEVICE_DFP2_SUPPORT:
137 if ((rdev->family == CHIP_RS600) ||
138 (rdev->family == CHIP_RS690) ||
139 (rdev->family == CHIP_RS740))
140 ret = ENCODER_INTERNAL_DDI_ENUM_ID1;
141 else if (ASIC_IS_AVIVO(rdev))
142 ret = ENCODER_INTERNAL_KLDSCP_DVO1_ENUM_ID1;
143 else
144 ret = ENCODER_INTERNAL_DVO1_ENUM_ID1;
145 break;
146 case ATOM_DEVICE_DFP3_SUPPORT:
147 ret = ENCODER_INTERNAL_LVTM1_ENUM_ID1;
148 break;
149 }
150
151 return ret;
152 }
153
radeon_encoder_add_backlight(struct radeon_encoder * radeon_encoder,struct drm_connector * connector)154 static void radeon_encoder_add_backlight(struct radeon_encoder *radeon_encoder,
155 struct drm_connector *connector)
156 {
157 struct drm_device *dev = radeon_encoder->base.dev;
158 struct radeon_device *rdev = dev->dev_private;
159 bool use_bl = false;
160
161 if (!(radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)))
162 return;
163
164 if (radeon_backlight == 0) {
165 return;
166 } else if (radeon_backlight == 1) {
167 use_bl = true;
168 } else if (radeon_backlight == -1) {
169 /* Quirks */
170 /* Amilo Xi 2550 only works with acpi bl */
171 if ((rdev->pdev->device == 0x9583) &&
172 (rdev->pdev->subsystem_vendor == 0x1734) &&
173 (rdev->pdev->subsystem_device == 0x1107))
174 use_bl = false;
175 /* Older PPC macs use on-GPU backlight controller */
176 #ifndef CONFIG_PPC_PMAC
177 /* disable native backlight control on older asics */
178 else if (rdev->family < CHIP_R600)
179 use_bl = false;
180 #endif
181 else
182 use_bl = true;
183 }
184
185 if (use_bl) {
186 if (rdev->is_atom_bios)
187 radeon_atom_backlight_init(radeon_encoder, connector);
188 else
189 radeon_legacy_backlight_init(radeon_encoder, connector);
190 }
191 }
192
193 void
radeon_link_encoder_connector(struct drm_device * dev)194 radeon_link_encoder_connector(struct drm_device *dev)
195 {
196 struct drm_connector *connector;
197 struct radeon_connector *radeon_connector;
198 struct drm_encoder *encoder;
199 struct radeon_encoder *radeon_encoder;
200
201 /* walk the list and link encoders to connectors */
202 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
203 radeon_connector = to_radeon_connector(connector);
204 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
205 radeon_encoder = to_radeon_encoder(encoder);
206 if (radeon_encoder->devices & radeon_connector->devices) {
207 drm_mode_connector_attach_encoder(connector, encoder);
208 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
209 radeon_encoder_add_backlight(radeon_encoder, connector);
210 }
211 }
212 }
213 }
214
radeon_encoder_set_active_device(struct drm_encoder * encoder)215 void radeon_encoder_set_active_device(struct drm_encoder *encoder)
216 {
217 struct drm_device *dev = encoder->dev;
218 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
219 struct drm_connector *connector;
220
221 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
222 if (connector->encoder == encoder) {
223 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
224 radeon_encoder->active_device = radeon_encoder->devices & radeon_connector->devices;
225 DRM_DEBUG_KMS("setting active device to %08x from %08x %08x for encoder %d\n",
226 radeon_encoder->active_device, radeon_encoder->devices,
227 radeon_connector->devices, encoder->encoder_type);
228 }
229 }
230 }
231
232 struct drm_connector *
radeon_get_connector_for_encoder(struct drm_encoder * encoder)233 radeon_get_connector_for_encoder(struct drm_encoder *encoder)
234 {
235 struct drm_device *dev = encoder->dev;
236 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
237 struct drm_connector *connector;
238 struct radeon_connector *radeon_connector;
239
240 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
241 radeon_connector = to_radeon_connector(connector);
242 if (radeon_encoder->is_mst_encoder) {
243 struct radeon_encoder_mst *mst_enc;
244
245 if (!radeon_connector->is_mst_connector)
246 continue;
247
248 mst_enc = radeon_encoder->enc_priv;
249 if (mst_enc->connector == radeon_connector->mst_port)
250 return connector;
251 } else if (radeon_encoder->active_device & radeon_connector->devices)
252 return connector;
253 }
254 return NULL;
255 }
256
257 struct drm_connector *
radeon_get_connector_for_encoder_init(struct drm_encoder * encoder)258 radeon_get_connector_for_encoder_init(struct drm_encoder *encoder)
259 {
260 struct drm_device *dev = encoder->dev;
261 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
262 struct drm_connector *connector;
263 struct radeon_connector *radeon_connector;
264
265 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
266 radeon_connector = to_radeon_connector(connector);
267 if (radeon_encoder->devices & radeon_connector->devices)
268 return connector;
269 }
270 return NULL;
271 }
272
radeon_get_external_encoder(struct drm_encoder * encoder)273 struct drm_encoder *radeon_get_external_encoder(struct drm_encoder *encoder)
274 {
275 struct drm_device *dev = encoder->dev;
276 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
277 struct drm_encoder *other_encoder;
278 struct radeon_encoder *other_radeon_encoder;
279
280 if (radeon_encoder->is_ext_encoder)
281 return NULL;
282
283 list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) {
284 if (other_encoder == encoder)
285 continue;
286 other_radeon_encoder = to_radeon_encoder(other_encoder);
287 if (other_radeon_encoder->is_ext_encoder &&
288 (radeon_encoder->devices & other_radeon_encoder->devices))
289 return other_encoder;
290 }
291 return NULL;
292 }
293
radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder * encoder)294 u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder)
295 {
296 struct drm_encoder *other_encoder = radeon_get_external_encoder(encoder);
297
298 if (other_encoder) {
299 struct radeon_encoder *radeon_encoder = to_radeon_encoder(other_encoder);
300
301 switch (radeon_encoder->encoder_id) {
302 case ENCODER_OBJECT_ID_TRAVIS:
303 case ENCODER_OBJECT_ID_NUTMEG:
304 return radeon_encoder->encoder_id;
305 default:
306 return ENCODER_OBJECT_ID_NONE;
307 }
308 }
309 return ENCODER_OBJECT_ID_NONE;
310 }
311
radeon_panel_mode_fixup(struct drm_encoder * encoder,struct drm_display_mode * adjusted_mode)312 void radeon_panel_mode_fixup(struct drm_encoder *encoder,
313 struct drm_display_mode *adjusted_mode)
314 {
315 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
316 struct drm_device *dev = encoder->dev;
317 struct radeon_device *rdev = dev->dev_private;
318 struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
319 unsigned hblank = native_mode->htotal - native_mode->hdisplay;
320 unsigned vblank = native_mode->vtotal - native_mode->vdisplay;
321 unsigned hover = native_mode->hsync_start - native_mode->hdisplay;
322 unsigned vover = native_mode->vsync_start - native_mode->vdisplay;
323 unsigned hsync_width = native_mode->hsync_end - native_mode->hsync_start;
324 unsigned vsync_width = native_mode->vsync_end - native_mode->vsync_start;
325
326 adjusted_mode->clock = native_mode->clock;
327 adjusted_mode->flags = native_mode->flags;
328
329 if (ASIC_IS_AVIVO(rdev)) {
330 adjusted_mode->hdisplay = native_mode->hdisplay;
331 adjusted_mode->vdisplay = native_mode->vdisplay;
332 }
333
334 adjusted_mode->htotal = native_mode->hdisplay + hblank;
335 adjusted_mode->hsync_start = native_mode->hdisplay + hover;
336 adjusted_mode->hsync_end = adjusted_mode->hsync_start + hsync_width;
337
338 adjusted_mode->vtotal = native_mode->vdisplay + vblank;
339 adjusted_mode->vsync_start = native_mode->vdisplay + vover;
340 adjusted_mode->vsync_end = adjusted_mode->vsync_start + vsync_width;
341
342 drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
343
344 if (ASIC_IS_AVIVO(rdev)) {
345 adjusted_mode->crtc_hdisplay = native_mode->hdisplay;
346 adjusted_mode->crtc_vdisplay = native_mode->vdisplay;
347 }
348
349 adjusted_mode->crtc_htotal = adjusted_mode->crtc_hdisplay + hblank;
350 adjusted_mode->crtc_hsync_start = adjusted_mode->crtc_hdisplay + hover;
351 adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width;
352
353 adjusted_mode->crtc_vtotal = adjusted_mode->crtc_vdisplay + vblank;
354 adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + vover;
355 adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width;
356
357 }
358
radeon_dig_monitor_is_duallink(struct drm_encoder * encoder,u32 pixel_clock)359 bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
360 u32 pixel_clock)
361 {
362 struct drm_device *dev = encoder->dev;
363 struct radeon_device *rdev = dev->dev_private;
364 struct drm_connector *connector;
365 struct radeon_connector *radeon_connector;
366 struct radeon_connector_atom_dig *dig_connector;
367
368 connector = radeon_get_connector_for_encoder(encoder);
369 /* if we don't have an active device yet, just use one of
370 * the connectors tied to the encoder.
371 */
372 if (!connector)
373 connector = radeon_get_connector_for_encoder_init(encoder);
374 radeon_connector = to_radeon_connector(connector);
375
376 switch (connector->connector_type) {
377 case DRM_MODE_CONNECTOR_DVII:
378 case DRM_MODE_CONNECTOR_HDMIB:
379 if (radeon_connector->use_digital) {
380 /* HDMI 1.3 supports up to 340 Mhz over single link */
381 if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
382 if (pixel_clock > 340000)
383 return true;
384 else
385 return false;
386 } else {
387 if (pixel_clock > 165000)
388 return true;
389 else
390 return false;
391 }
392 } else
393 return false;
394 case DRM_MODE_CONNECTOR_DVID:
395 case DRM_MODE_CONNECTOR_HDMIA:
396 case DRM_MODE_CONNECTOR_DisplayPort:
397 if (radeon_connector->is_mst_connector)
398 return false;
399
400 dig_connector = radeon_connector->con_priv;
401 if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
402 (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
403 return false;
404 else {
405 /* HDMI 1.3 supports up to 340 Mhz over single link */
406 if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
407 if (pixel_clock > 340000)
408 return true;
409 else
410 return false;
411 } else {
412 if (pixel_clock > 165000)
413 return true;
414 else
415 return false;
416 }
417 }
418 default:
419 return false;
420 }
421 }
422
radeon_encoder_is_digital(struct drm_encoder * encoder)423 bool radeon_encoder_is_digital(struct drm_encoder *encoder)
424 {
425 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
426 switch (radeon_encoder->encoder_id) {
427 case ENCODER_OBJECT_ID_INTERNAL_LVDS:
428 case ENCODER_OBJECT_ID_INTERNAL_TMDS1:
429 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
430 case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
431 case ENCODER_OBJECT_ID_INTERNAL_DVO1:
432 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
433 case ENCODER_OBJECT_ID_INTERNAL_DDI:
434 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
435 case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
436 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
437 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
438 case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3:
439 return true;
440 default:
441 return false;
442 }
443 }
444