xref: /linux/drivers/gpu/drm/radeon/radeon_combios.c (revision 5d4a2e29fba5b2bef95b96a46b338ec4d76fa4fd)
1 /*
2  * Copyright 2004 ATI Technologies Inc., Markham, Ontario
3  * Copyright 2007-8 Advanced Micro Devices, Inc.
4  * Copyright 2008 Red Hat Inc.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * Authors: Dave Airlie
25  *          Alex Deucher
26  */
27 #include "drmP.h"
28 #include "radeon_drm.h"
29 #include "radeon.h"
30 #include "atom.h"
31 
32 #ifdef CONFIG_PPC_PMAC
33 /* not sure which of these are needed */
34 #include <asm/machdep.h>
35 #include <asm/pmac_feature.h>
36 #include <asm/prom.h>
37 #include <asm/pci-bridge.h>
38 #endif /* CONFIG_PPC_PMAC */
39 
40 /* from radeon_encoder.c */
41 extern uint32_t
42 radeon_get_encoder_id(struct drm_device *dev, uint32_t supported_device,
43 		      uint8_t dac);
44 extern void radeon_link_encoder_connector(struct drm_device *dev);
45 
46 /* from radeon_connector.c */
47 extern void
48 radeon_add_legacy_connector(struct drm_device *dev,
49 			    uint32_t connector_id,
50 			    uint32_t supported_device,
51 			    int connector_type,
52 			    struct radeon_i2c_bus_rec *i2c_bus,
53 			    uint16_t connector_object_id,
54 			    struct radeon_hpd *hpd);
55 
56 /* from radeon_legacy_encoder.c */
57 extern void
58 radeon_add_legacy_encoder(struct drm_device *dev, uint32_t encoder_id,
59 			  uint32_t supported_device);
60 
61 /* old legacy ATI BIOS routines */
62 
63 /* COMBIOS table offsets */
64 enum radeon_combios_table_offset {
65 	/* absolute offset tables */
66 	COMBIOS_ASIC_INIT_1_TABLE,
67 	COMBIOS_BIOS_SUPPORT_TABLE,
68 	COMBIOS_DAC_PROGRAMMING_TABLE,
69 	COMBIOS_MAX_COLOR_DEPTH_TABLE,
70 	COMBIOS_CRTC_INFO_TABLE,
71 	COMBIOS_PLL_INFO_TABLE,
72 	COMBIOS_TV_INFO_TABLE,
73 	COMBIOS_DFP_INFO_TABLE,
74 	COMBIOS_HW_CONFIG_INFO_TABLE,
75 	COMBIOS_MULTIMEDIA_INFO_TABLE,
76 	COMBIOS_TV_STD_PATCH_TABLE,
77 	COMBIOS_LCD_INFO_TABLE,
78 	COMBIOS_MOBILE_INFO_TABLE,
79 	COMBIOS_PLL_INIT_TABLE,
80 	COMBIOS_MEM_CONFIG_TABLE,
81 	COMBIOS_SAVE_MASK_TABLE,
82 	COMBIOS_HARDCODED_EDID_TABLE,
83 	COMBIOS_ASIC_INIT_2_TABLE,
84 	COMBIOS_CONNECTOR_INFO_TABLE,
85 	COMBIOS_DYN_CLK_1_TABLE,
86 	COMBIOS_RESERVED_MEM_TABLE,
87 	COMBIOS_EXT_TMDS_INFO_TABLE,
88 	COMBIOS_MEM_CLK_INFO_TABLE,
89 	COMBIOS_EXT_DAC_INFO_TABLE,
90 	COMBIOS_MISC_INFO_TABLE,
91 	COMBIOS_CRT_INFO_TABLE,
92 	COMBIOS_INTEGRATED_SYSTEM_INFO_TABLE,
93 	COMBIOS_COMPONENT_VIDEO_INFO_TABLE,
94 	COMBIOS_FAN_SPEED_INFO_TABLE,
95 	COMBIOS_OVERDRIVE_INFO_TABLE,
96 	COMBIOS_OEM_INFO_TABLE,
97 	COMBIOS_DYN_CLK_2_TABLE,
98 	COMBIOS_POWER_CONNECTOR_INFO_TABLE,
99 	COMBIOS_I2C_INFO_TABLE,
100 	/* relative offset tables */
101 	COMBIOS_ASIC_INIT_3_TABLE,	/* offset from misc info */
102 	COMBIOS_ASIC_INIT_4_TABLE,	/* offset from misc info */
103 	COMBIOS_DETECTED_MEM_TABLE,	/* offset from misc info */
104 	COMBIOS_ASIC_INIT_5_TABLE,	/* offset from misc info */
105 	COMBIOS_RAM_RESET_TABLE,	/* offset from mem config */
106 	COMBIOS_POWERPLAY_INFO_TABLE,	/* offset from mobile info */
107 	COMBIOS_GPIO_INFO_TABLE,	/* offset from mobile info */
108 	COMBIOS_LCD_DDC_INFO_TABLE,	/* offset from mobile info */
109 	COMBIOS_TMDS_POWER_TABLE,	/* offset from mobile info */
110 	COMBIOS_TMDS_POWER_ON_TABLE,	/* offset from tmds power */
111 	COMBIOS_TMDS_POWER_OFF_TABLE,	/* offset from tmds power */
112 };
113 
114 enum radeon_combios_ddc {
115 	DDC_NONE_DETECTED,
116 	DDC_MONID,
117 	DDC_DVI,
118 	DDC_VGA,
119 	DDC_CRT2,
120 	DDC_LCD,
121 	DDC_GPIO,
122 };
123 
124 enum radeon_combios_connector {
125 	CONNECTOR_NONE_LEGACY,
126 	CONNECTOR_PROPRIETARY_LEGACY,
127 	CONNECTOR_CRT_LEGACY,
128 	CONNECTOR_DVI_I_LEGACY,
129 	CONNECTOR_DVI_D_LEGACY,
130 	CONNECTOR_CTV_LEGACY,
131 	CONNECTOR_STV_LEGACY,
132 	CONNECTOR_UNSUPPORTED_LEGACY
133 };
134 
135 const int legacy_connector_convert[] = {
136 	DRM_MODE_CONNECTOR_Unknown,
137 	DRM_MODE_CONNECTOR_DVID,
138 	DRM_MODE_CONNECTOR_VGA,
139 	DRM_MODE_CONNECTOR_DVII,
140 	DRM_MODE_CONNECTOR_DVID,
141 	DRM_MODE_CONNECTOR_Composite,
142 	DRM_MODE_CONNECTOR_SVIDEO,
143 	DRM_MODE_CONNECTOR_Unknown,
144 };
145 
146 static uint16_t combios_get_table_offset(struct drm_device *dev,
147 					 enum radeon_combios_table_offset table)
148 {
149 	struct radeon_device *rdev = dev->dev_private;
150 	int rev;
151 	uint16_t offset = 0, check_offset;
152 
153 	if (!rdev->bios)
154 		return 0;
155 
156 	switch (table) {
157 		/* absolute offset tables */
158 	case COMBIOS_ASIC_INIT_1_TABLE:
159 		check_offset = RBIOS16(rdev->bios_header_start + 0xc);
160 		if (check_offset)
161 			offset = check_offset;
162 		break;
163 	case COMBIOS_BIOS_SUPPORT_TABLE:
164 		check_offset = RBIOS16(rdev->bios_header_start + 0x14);
165 		if (check_offset)
166 			offset = check_offset;
167 		break;
168 	case COMBIOS_DAC_PROGRAMMING_TABLE:
169 		check_offset = RBIOS16(rdev->bios_header_start + 0x2a);
170 		if (check_offset)
171 			offset = check_offset;
172 		break;
173 	case COMBIOS_MAX_COLOR_DEPTH_TABLE:
174 		check_offset = RBIOS16(rdev->bios_header_start + 0x2c);
175 		if (check_offset)
176 			offset = check_offset;
177 		break;
178 	case COMBIOS_CRTC_INFO_TABLE:
179 		check_offset = RBIOS16(rdev->bios_header_start + 0x2e);
180 		if (check_offset)
181 			offset = check_offset;
182 		break;
183 	case COMBIOS_PLL_INFO_TABLE:
184 		check_offset = RBIOS16(rdev->bios_header_start + 0x30);
185 		if (check_offset)
186 			offset = check_offset;
187 		break;
188 	case COMBIOS_TV_INFO_TABLE:
189 		check_offset = RBIOS16(rdev->bios_header_start + 0x32);
190 		if (check_offset)
191 			offset = check_offset;
192 		break;
193 	case COMBIOS_DFP_INFO_TABLE:
194 		check_offset = RBIOS16(rdev->bios_header_start + 0x34);
195 		if (check_offset)
196 			offset = check_offset;
197 		break;
198 	case COMBIOS_HW_CONFIG_INFO_TABLE:
199 		check_offset = RBIOS16(rdev->bios_header_start + 0x36);
200 		if (check_offset)
201 			offset = check_offset;
202 		break;
203 	case COMBIOS_MULTIMEDIA_INFO_TABLE:
204 		check_offset = RBIOS16(rdev->bios_header_start + 0x38);
205 		if (check_offset)
206 			offset = check_offset;
207 		break;
208 	case COMBIOS_TV_STD_PATCH_TABLE:
209 		check_offset = RBIOS16(rdev->bios_header_start + 0x3e);
210 		if (check_offset)
211 			offset = check_offset;
212 		break;
213 	case COMBIOS_LCD_INFO_TABLE:
214 		check_offset = RBIOS16(rdev->bios_header_start + 0x40);
215 		if (check_offset)
216 			offset = check_offset;
217 		break;
218 	case COMBIOS_MOBILE_INFO_TABLE:
219 		check_offset = RBIOS16(rdev->bios_header_start + 0x42);
220 		if (check_offset)
221 			offset = check_offset;
222 		break;
223 	case COMBIOS_PLL_INIT_TABLE:
224 		check_offset = RBIOS16(rdev->bios_header_start + 0x46);
225 		if (check_offset)
226 			offset = check_offset;
227 		break;
228 	case COMBIOS_MEM_CONFIG_TABLE:
229 		check_offset = RBIOS16(rdev->bios_header_start + 0x48);
230 		if (check_offset)
231 			offset = check_offset;
232 		break;
233 	case COMBIOS_SAVE_MASK_TABLE:
234 		check_offset = RBIOS16(rdev->bios_header_start + 0x4a);
235 		if (check_offset)
236 			offset = check_offset;
237 		break;
238 	case COMBIOS_HARDCODED_EDID_TABLE:
239 		check_offset = RBIOS16(rdev->bios_header_start + 0x4c);
240 		if (check_offset)
241 			offset = check_offset;
242 		break;
243 	case COMBIOS_ASIC_INIT_2_TABLE:
244 		check_offset = RBIOS16(rdev->bios_header_start + 0x4e);
245 		if (check_offset)
246 			offset = check_offset;
247 		break;
248 	case COMBIOS_CONNECTOR_INFO_TABLE:
249 		check_offset = RBIOS16(rdev->bios_header_start + 0x50);
250 		if (check_offset)
251 			offset = check_offset;
252 		break;
253 	case COMBIOS_DYN_CLK_1_TABLE:
254 		check_offset = RBIOS16(rdev->bios_header_start + 0x52);
255 		if (check_offset)
256 			offset = check_offset;
257 		break;
258 	case COMBIOS_RESERVED_MEM_TABLE:
259 		check_offset = RBIOS16(rdev->bios_header_start + 0x54);
260 		if (check_offset)
261 			offset = check_offset;
262 		break;
263 	case COMBIOS_EXT_TMDS_INFO_TABLE:
264 		check_offset = RBIOS16(rdev->bios_header_start + 0x58);
265 		if (check_offset)
266 			offset = check_offset;
267 		break;
268 	case COMBIOS_MEM_CLK_INFO_TABLE:
269 		check_offset = RBIOS16(rdev->bios_header_start + 0x5a);
270 		if (check_offset)
271 			offset = check_offset;
272 		break;
273 	case COMBIOS_EXT_DAC_INFO_TABLE:
274 		check_offset = RBIOS16(rdev->bios_header_start + 0x5c);
275 		if (check_offset)
276 			offset = check_offset;
277 		break;
278 	case COMBIOS_MISC_INFO_TABLE:
279 		check_offset = RBIOS16(rdev->bios_header_start + 0x5e);
280 		if (check_offset)
281 			offset = check_offset;
282 		break;
283 	case COMBIOS_CRT_INFO_TABLE:
284 		check_offset = RBIOS16(rdev->bios_header_start + 0x60);
285 		if (check_offset)
286 			offset = check_offset;
287 		break;
288 	case COMBIOS_INTEGRATED_SYSTEM_INFO_TABLE:
289 		check_offset = RBIOS16(rdev->bios_header_start + 0x62);
290 		if (check_offset)
291 			offset = check_offset;
292 		break;
293 	case COMBIOS_COMPONENT_VIDEO_INFO_TABLE:
294 		check_offset = RBIOS16(rdev->bios_header_start + 0x64);
295 		if (check_offset)
296 			offset = check_offset;
297 		break;
298 	case COMBIOS_FAN_SPEED_INFO_TABLE:
299 		check_offset = RBIOS16(rdev->bios_header_start + 0x66);
300 		if (check_offset)
301 			offset = check_offset;
302 		break;
303 	case COMBIOS_OVERDRIVE_INFO_TABLE:
304 		check_offset = RBIOS16(rdev->bios_header_start + 0x68);
305 		if (check_offset)
306 			offset = check_offset;
307 		break;
308 	case COMBIOS_OEM_INFO_TABLE:
309 		check_offset = RBIOS16(rdev->bios_header_start + 0x6a);
310 		if (check_offset)
311 			offset = check_offset;
312 		break;
313 	case COMBIOS_DYN_CLK_2_TABLE:
314 		check_offset = RBIOS16(rdev->bios_header_start + 0x6c);
315 		if (check_offset)
316 			offset = check_offset;
317 		break;
318 	case COMBIOS_POWER_CONNECTOR_INFO_TABLE:
319 		check_offset = RBIOS16(rdev->bios_header_start + 0x6e);
320 		if (check_offset)
321 			offset = check_offset;
322 		break;
323 	case COMBIOS_I2C_INFO_TABLE:
324 		check_offset = RBIOS16(rdev->bios_header_start + 0x70);
325 		if (check_offset)
326 			offset = check_offset;
327 		break;
328 		/* relative offset tables */
329 	case COMBIOS_ASIC_INIT_3_TABLE:	/* offset from misc info */
330 		check_offset =
331 		    combios_get_table_offset(dev, COMBIOS_MISC_INFO_TABLE);
332 		if (check_offset) {
333 			rev = RBIOS8(check_offset);
334 			if (rev > 0) {
335 				check_offset = RBIOS16(check_offset + 0x3);
336 				if (check_offset)
337 					offset = check_offset;
338 			}
339 		}
340 		break;
341 	case COMBIOS_ASIC_INIT_4_TABLE:	/* offset from misc info */
342 		check_offset =
343 		    combios_get_table_offset(dev, COMBIOS_MISC_INFO_TABLE);
344 		if (check_offset) {
345 			rev = RBIOS8(check_offset);
346 			if (rev > 0) {
347 				check_offset = RBIOS16(check_offset + 0x5);
348 				if (check_offset)
349 					offset = check_offset;
350 			}
351 		}
352 		break;
353 	case COMBIOS_DETECTED_MEM_TABLE:	/* offset from misc info */
354 		check_offset =
355 		    combios_get_table_offset(dev, COMBIOS_MISC_INFO_TABLE);
356 		if (check_offset) {
357 			rev = RBIOS8(check_offset);
358 			if (rev > 0) {
359 				check_offset = RBIOS16(check_offset + 0x7);
360 				if (check_offset)
361 					offset = check_offset;
362 			}
363 		}
364 		break;
365 	case COMBIOS_ASIC_INIT_5_TABLE:	/* offset from misc info */
366 		check_offset =
367 		    combios_get_table_offset(dev, COMBIOS_MISC_INFO_TABLE);
368 		if (check_offset) {
369 			rev = RBIOS8(check_offset);
370 			if (rev == 2) {
371 				check_offset = RBIOS16(check_offset + 0x9);
372 				if (check_offset)
373 					offset = check_offset;
374 			}
375 		}
376 		break;
377 	case COMBIOS_RAM_RESET_TABLE:	/* offset from mem config */
378 		check_offset =
379 		    combios_get_table_offset(dev, COMBIOS_MEM_CONFIG_TABLE);
380 		if (check_offset) {
381 			while (RBIOS8(check_offset++));
382 			check_offset += 2;
383 			if (check_offset)
384 				offset = check_offset;
385 		}
386 		break;
387 	case COMBIOS_POWERPLAY_INFO_TABLE:	/* offset from mobile info */
388 		check_offset =
389 		    combios_get_table_offset(dev, COMBIOS_MOBILE_INFO_TABLE);
390 		if (check_offset) {
391 			check_offset = RBIOS16(check_offset + 0x11);
392 			if (check_offset)
393 				offset = check_offset;
394 		}
395 		break;
396 	case COMBIOS_GPIO_INFO_TABLE:	/* offset from mobile info */
397 		check_offset =
398 		    combios_get_table_offset(dev, COMBIOS_MOBILE_INFO_TABLE);
399 		if (check_offset) {
400 			check_offset = RBIOS16(check_offset + 0x13);
401 			if (check_offset)
402 				offset = check_offset;
403 		}
404 		break;
405 	case COMBIOS_LCD_DDC_INFO_TABLE:	/* offset from mobile info */
406 		check_offset =
407 		    combios_get_table_offset(dev, COMBIOS_MOBILE_INFO_TABLE);
408 		if (check_offset) {
409 			check_offset = RBIOS16(check_offset + 0x15);
410 			if (check_offset)
411 				offset = check_offset;
412 		}
413 		break;
414 	case COMBIOS_TMDS_POWER_TABLE:	/* offset from mobile info */
415 		check_offset =
416 		    combios_get_table_offset(dev, COMBIOS_MOBILE_INFO_TABLE);
417 		if (check_offset) {
418 			check_offset = RBIOS16(check_offset + 0x17);
419 			if (check_offset)
420 				offset = check_offset;
421 		}
422 		break;
423 	case COMBIOS_TMDS_POWER_ON_TABLE:	/* offset from tmds power */
424 		check_offset =
425 		    combios_get_table_offset(dev, COMBIOS_TMDS_POWER_TABLE);
426 		if (check_offset) {
427 			check_offset = RBIOS16(check_offset + 0x2);
428 			if (check_offset)
429 				offset = check_offset;
430 		}
431 		break;
432 	case COMBIOS_TMDS_POWER_OFF_TABLE:	/* offset from tmds power */
433 		check_offset =
434 		    combios_get_table_offset(dev, COMBIOS_TMDS_POWER_TABLE);
435 		if (check_offset) {
436 			check_offset = RBIOS16(check_offset + 0x4);
437 			if (check_offset)
438 				offset = check_offset;
439 		}
440 		break;
441 	default:
442 		break;
443 	}
444 
445 	return offset;
446 
447 }
448 
449 bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev)
450 {
451 	int edid_info;
452 	struct edid *edid;
453 	unsigned char *raw;
454 	edid_info = combios_get_table_offset(rdev->ddev, COMBIOS_HARDCODED_EDID_TABLE);
455 	if (!edid_info)
456 		return false;
457 
458 	raw = rdev->bios + edid_info;
459 	edid = kmalloc(EDID_LENGTH * (raw[0x7e] + 1), GFP_KERNEL);
460 	if (edid == NULL)
461 		return false;
462 
463 	memcpy((unsigned char *)edid, raw, EDID_LENGTH * (raw[0x7e] + 1));
464 
465 	if (!drm_edid_is_valid(edid)) {
466 		kfree(edid);
467 		return false;
468 	}
469 
470 	rdev->mode_info.bios_hardcoded_edid = edid;
471 	return true;
472 }
473 
474 struct edid *
475 radeon_combios_get_hardcoded_edid(struct radeon_device *rdev)
476 {
477 	if (rdev->mode_info.bios_hardcoded_edid)
478 		return rdev->mode_info.bios_hardcoded_edid;
479 	return NULL;
480 }
481 
482 static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rdev,
483 						       int ddc_line)
484 {
485 	struct radeon_i2c_bus_rec i2c;
486 
487 	if (ddc_line == RADEON_GPIOPAD_MASK) {
488 		i2c.mask_clk_reg = RADEON_GPIOPAD_MASK;
489 		i2c.mask_data_reg = RADEON_GPIOPAD_MASK;
490 		i2c.a_clk_reg = RADEON_GPIOPAD_A;
491 		i2c.a_data_reg = RADEON_GPIOPAD_A;
492 		i2c.en_clk_reg = RADEON_GPIOPAD_EN;
493 		i2c.en_data_reg = RADEON_GPIOPAD_EN;
494 		i2c.y_clk_reg = RADEON_GPIOPAD_Y;
495 		i2c.y_data_reg = RADEON_GPIOPAD_Y;
496 	} else if (ddc_line == RADEON_MDGPIO_MASK) {
497 		i2c.mask_clk_reg = RADEON_MDGPIO_MASK;
498 		i2c.mask_data_reg = RADEON_MDGPIO_MASK;
499 		i2c.a_clk_reg = RADEON_MDGPIO_A;
500 		i2c.a_data_reg = RADEON_MDGPIO_A;
501 		i2c.en_clk_reg = RADEON_MDGPIO_EN;
502 		i2c.en_data_reg = RADEON_MDGPIO_EN;
503 		i2c.y_clk_reg = RADEON_MDGPIO_Y;
504 		i2c.y_data_reg = RADEON_MDGPIO_Y;
505 	} else {
506 		i2c.mask_clk_mask = RADEON_GPIO_EN_1;
507 		i2c.mask_data_mask = RADEON_GPIO_EN_0;
508 		i2c.a_clk_mask = RADEON_GPIO_A_1;
509 		i2c.a_data_mask = RADEON_GPIO_A_0;
510 		i2c.en_clk_mask = RADEON_GPIO_EN_1;
511 		i2c.en_data_mask = RADEON_GPIO_EN_0;
512 		i2c.y_clk_mask = RADEON_GPIO_Y_1;
513 		i2c.y_data_mask = RADEON_GPIO_Y_0;
514 
515 		i2c.mask_clk_reg = ddc_line;
516 		i2c.mask_data_reg = ddc_line;
517 		i2c.a_clk_reg = ddc_line;
518 		i2c.a_data_reg = ddc_line;
519 		i2c.en_clk_reg = ddc_line;
520 		i2c.en_data_reg = ddc_line;
521 		i2c.y_clk_reg = ddc_line;
522 		i2c.y_data_reg = ddc_line;
523 	}
524 
525 	switch (rdev->family) {
526 	case CHIP_R100:
527 	case CHIP_RV100:
528 	case CHIP_RS100:
529 	case CHIP_RV200:
530 	case CHIP_RS200:
531 	case CHIP_RS300:
532 		switch (ddc_line) {
533 		case RADEON_GPIO_DVI_DDC:
534 			i2c.hw_capable = true;
535 			break;
536 		default:
537 			i2c.hw_capable = false;
538 			break;
539 		}
540 		break;
541 	case CHIP_R200:
542 		switch (ddc_line) {
543 		case RADEON_GPIO_DVI_DDC:
544 		case RADEON_GPIO_MONID:
545 			i2c.hw_capable = true;
546 			break;
547 		default:
548 			i2c.hw_capable = false;
549 			break;
550 		}
551 		break;
552 	case CHIP_RV250:
553 	case CHIP_RV280:
554 		switch (ddc_line) {
555 		case RADEON_GPIO_VGA_DDC:
556 		case RADEON_GPIO_DVI_DDC:
557 		case RADEON_GPIO_CRT2_DDC:
558 			i2c.hw_capable = true;
559 			break;
560 		default:
561 			i2c.hw_capable = false;
562 			break;
563 		}
564 		break;
565 	case CHIP_R300:
566 	case CHIP_R350:
567 		switch (ddc_line) {
568 		case RADEON_GPIO_VGA_DDC:
569 		case RADEON_GPIO_DVI_DDC:
570 			i2c.hw_capable = true;
571 			break;
572 		default:
573 			i2c.hw_capable = false;
574 			break;
575 		}
576 		break;
577 	case CHIP_RV350:
578 	case CHIP_RV380:
579 	case CHIP_RS400:
580 	case CHIP_RS480:
581 		switch (ddc_line) {
582 		case RADEON_GPIO_VGA_DDC:
583 		case RADEON_GPIO_DVI_DDC:
584 			i2c.hw_capable = true;
585 			break;
586 		case RADEON_GPIO_MONID:
587 			/* hw i2c on RADEON_GPIO_MONID doesn't seem to work
588 			 * reliably on some pre-r4xx hardware; not sure why.
589 			 */
590 			i2c.hw_capable = false;
591 			break;
592 		default:
593 			i2c.hw_capable = false;
594 			break;
595 		}
596 		break;
597 	default:
598 		i2c.hw_capable = false;
599 		break;
600 	}
601 	i2c.mm_i2c = false;
602 	i2c.i2c_id = 0;
603 	i2c.hpd = RADEON_HPD_NONE;
604 
605 	if (ddc_line)
606 		i2c.valid = true;
607 	else
608 		i2c.valid = false;
609 
610 	return i2c;
611 }
612 
613 bool radeon_combios_get_clock_info(struct drm_device *dev)
614 {
615 	struct radeon_device *rdev = dev->dev_private;
616 	uint16_t pll_info;
617 	struct radeon_pll *p1pll = &rdev->clock.p1pll;
618 	struct radeon_pll *p2pll = &rdev->clock.p2pll;
619 	struct radeon_pll *spll = &rdev->clock.spll;
620 	struct radeon_pll *mpll = &rdev->clock.mpll;
621 	int8_t rev;
622 	uint16_t sclk, mclk;
623 
624 	pll_info = combios_get_table_offset(dev, COMBIOS_PLL_INFO_TABLE);
625 	if (pll_info) {
626 		rev = RBIOS8(pll_info);
627 
628 		/* pixel clocks */
629 		p1pll->reference_freq = RBIOS16(pll_info + 0xe);
630 		p1pll->reference_div = RBIOS16(pll_info + 0x10);
631 		p1pll->pll_out_min = RBIOS32(pll_info + 0x12);
632 		p1pll->pll_out_max = RBIOS32(pll_info + 0x16);
633 		p1pll->lcd_pll_out_min = p1pll->pll_out_min;
634 		p1pll->lcd_pll_out_max = p1pll->pll_out_max;
635 
636 		if (rev > 9) {
637 			p1pll->pll_in_min = RBIOS32(pll_info + 0x36);
638 			p1pll->pll_in_max = RBIOS32(pll_info + 0x3a);
639 		} else {
640 			p1pll->pll_in_min = 40;
641 			p1pll->pll_in_max = 500;
642 		}
643 		*p2pll = *p1pll;
644 
645 		/* system clock */
646 		spll->reference_freq = RBIOS16(pll_info + 0x1a);
647 		spll->reference_div = RBIOS16(pll_info + 0x1c);
648 		spll->pll_out_min = RBIOS32(pll_info + 0x1e);
649 		spll->pll_out_max = RBIOS32(pll_info + 0x22);
650 
651 		if (rev > 10) {
652 			spll->pll_in_min = RBIOS32(pll_info + 0x48);
653 			spll->pll_in_max = RBIOS32(pll_info + 0x4c);
654 		} else {
655 			/* ??? */
656 			spll->pll_in_min = 40;
657 			spll->pll_in_max = 500;
658 		}
659 
660 		/* memory clock */
661 		mpll->reference_freq = RBIOS16(pll_info + 0x26);
662 		mpll->reference_div = RBIOS16(pll_info + 0x28);
663 		mpll->pll_out_min = RBIOS32(pll_info + 0x2a);
664 		mpll->pll_out_max = RBIOS32(pll_info + 0x2e);
665 
666 		if (rev > 10) {
667 			mpll->pll_in_min = RBIOS32(pll_info + 0x5a);
668 			mpll->pll_in_max = RBIOS32(pll_info + 0x5e);
669 		} else {
670 			/* ??? */
671 			mpll->pll_in_min = 40;
672 			mpll->pll_in_max = 500;
673 		}
674 
675 		/* default sclk/mclk */
676 		sclk = RBIOS16(pll_info + 0xa);
677 		mclk = RBIOS16(pll_info + 0x8);
678 		if (sclk == 0)
679 			sclk = 200 * 100;
680 		if (mclk == 0)
681 			mclk = 200 * 100;
682 
683 		rdev->clock.default_sclk = sclk;
684 		rdev->clock.default_mclk = mclk;
685 
686 		return true;
687 	}
688 	return false;
689 }
690 
691 bool radeon_combios_sideport_present(struct radeon_device *rdev)
692 {
693 	struct drm_device *dev = rdev->ddev;
694 	u16 igp_info;
695 
696 	igp_info = combios_get_table_offset(dev, COMBIOS_INTEGRATED_SYSTEM_INFO_TABLE);
697 
698 	if (igp_info) {
699 		if (RBIOS16(igp_info + 0x4))
700 			return true;
701 	}
702 	return false;
703 }
704 
705 static const uint32_t default_primarydac_adj[CHIP_LAST] = {
706 	0x00000808,		/* r100  */
707 	0x00000808,		/* rv100 */
708 	0x00000808,		/* rs100 */
709 	0x00000808,		/* rv200 */
710 	0x00000808,		/* rs200 */
711 	0x00000808,		/* r200  */
712 	0x00000808,		/* rv250 */
713 	0x00000000,		/* rs300 */
714 	0x00000808,		/* rv280 */
715 	0x00000808,		/* r300  */
716 	0x00000808,		/* r350  */
717 	0x00000808,		/* rv350 */
718 	0x00000808,		/* rv380 */
719 	0x00000808,		/* r420  */
720 	0x00000808,		/* r423  */
721 	0x00000808,		/* rv410 */
722 	0x00000000,		/* rs400 */
723 	0x00000000,		/* rs480 */
724 };
725 
726 static void radeon_legacy_get_primary_dac_info_from_table(struct radeon_device *rdev,
727 							  struct radeon_encoder_primary_dac *p_dac)
728 {
729 	p_dac->ps2_pdac_adj = default_primarydac_adj[rdev->family];
730 	return;
731 }
732 
733 struct radeon_encoder_primary_dac *radeon_combios_get_primary_dac_info(struct
734 								       radeon_encoder
735 								       *encoder)
736 {
737 	struct drm_device *dev = encoder->base.dev;
738 	struct radeon_device *rdev = dev->dev_private;
739 	uint16_t dac_info;
740 	uint8_t rev, bg, dac;
741 	struct radeon_encoder_primary_dac *p_dac = NULL;
742 	int found = 0;
743 
744 	p_dac = kzalloc(sizeof(struct radeon_encoder_primary_dac),
745 			GFP_KERNEL);
746 
747 	if (!p_dac)
748 		return NULL;
749 
750 	/* check CRT table */
751 	dac_info = combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE);
752 	if (dac_info) {
753 		rev = RBIOS8(dac_info) & 0x3;
754 		if (rev < 2) {
755 			bg = RBIOS8(dac_info + 0x2) & 0xf;
756 			dac = (RBIOS8(dac_info + 0x2) >> 4) & 0xf;
757 			p_dac->ps2_pdac_adj = (bg << 8) | (dac);
758 		} else {
759 			bg = RBIOS8(dac_info + 0x2) & 0xf;
760 			dac = RBIOS8(dac_info + 0x3) & 0xf;
761 			p_dac->ps2_pdac_adj = (bg << 8) | (dac);
762 		}
763 		/* if the values are all zeros, use the table */
764 		if (p_dac->ps2_pdac_adj)
765 			found = 1;
766 	}
767 
768 	if (!found) /* fallback to defaults */
769 		radeon_legacy_get_primary_dac_info_from_table(rdev, p_dac);
770 
771 	return p_dac;
772 }
773 
774 enum radeon_tv_std
775 radeon_combios_get_tv_info(struct radeon_device *rdev)
776 {
777 	struct drm_device *dev = rdev->ddev;
778 	uint16_t tv_info;
779 	enum radeon_tv_std tv_std = TV_STD_NTSC;
780 
781 	tv_info = combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE);
782 	if (tv_info) {
783 		if (RBIOS8(tv_info + 6) == 'T') {
784 			switch (RBIOS8(tv_info + 7) & 0xf) {
785 			case 1:
786 				tv_std = TV_STD_NTSC;
787 				DRM_INFO("Default TV standard: NTSC\n");
788 				break;
789 			case 2:
790 				tv_std = TV_STD_PAL;
791 				DRM_INFO("Default TV standard: PAL\n");
792 				break;
793 			case 3:
794 				tv_std = TV_STD_PAL_M;
795 				DRM_INFO("Default TV standard: PAL-M\n");
796 				break;
797 			case 4:
798 				tv_std = TV_STD_PAL_60;
799 				DRM_INFO("Default TV standard: PAL-60\n");
800 				break;
801 			case 5:
802 				tv_std = TV_STD_NTSC_J;
803 				DRM_INFO("Default TV standard: NTSC-J\n");
804 				break;
805 			case 6:
806 				tv_std = TV_STD_SCART_PAL;
807 				DRM_INFO("Default TV standard: SCART-PAL\n");
808 				break;
809 			default:
810 				tv_std = TV_STD_NTSC;
811 				DRM_INFO
812 				    ("Unknown TV standard; defaulting to NTSC\n");
813 				break;
814 			}
815 
816 			switch ((RBIOS8(tv_info + 9) >> 2) & 0x3) {
817 			case 0:
818 				DRM_INFO("29.498928713 MHz TV ref clk\n");
819 				break;
820 			case 1:
821 				DRM_INFO("28.636360000 MHz TV ref clk\n");
822 				break;
823 			case 2:
824 				DRM_INFO("14.318180000 MHz TV ref clk\n");
825 				break;
826 			case 3:
827 				DRM_INFO("27.000000000 MHz TV ref clk\n");
828 				break;
829 			default:
830 				break;
831 			}
832 		}
833 	}
834 	return tv_std;
835 }
836 
837 static const uint32_t default_tvdac_adj[CHIP_LAST] = {
838 	0x00000000,		/* r100  */
839 	0x00280000,		/* rv100 */
840 	0x00000000,		/* rs100 */
841 	0x00880000,		/* rv200 */
842 	0x00000000,		/* rs200 */
843 	0x00000000,		/* r200  */
844 	0x00770000,		/* rv250 */
845 	0x00290000,		/* rs300 */
846 	0x00560000,		/* rv280 */
847 	0x00780000,		/* r300  */
848 	0x00770000,		/* r350  */
849 	0x00780000,		/* rv350 */
850 	0x00780000,		/* rv380 */
851 	0x01080000,		/* r420  */
852 	0x01080000,		/* r423  */
853 	0x01080000,		/* rv410 */
854 	0x00780000,		/* rs400 */
855 	0x00780000,		/* rs480 */
856 };
857 
858 static void radeon_legacy_get_tv_dac_info_from_table(struct radeon_device *rdev,
859 						     struct radeon_encoder_tv_dac *tv_dac)
860 {
861 	tv_dac->ps2_tvdac_adj = default_tvdac_adj[rdev->family];
862 	if ((rdev->flags & RADEON_IS_MOBILITY) && (rdev->family == CHIP_RV250))
863 		tv_dac->ps2_tvdac_adj = 0x00880000;
864 	tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj;
865 	tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj;
866 	return;
867 }
868 
869 struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct
870 							     radeon_encoder
871 							     *encoder)
872 {
873 	struct drm_device *dev = encoder->base.dev;
874 	struct radeon_device *rdev = dev->dev_private;
875 	uint16_t dac_info;
876 	uint8_t rev, bg, dac;
877 	struct radeon_encoder_tv_dac *tv_dac = NULL;
878 	int found = 0;
879 
880 	tv_dac = kzalloc(sizeof(struct radeon_encoder_tv_dac), GFP_KERNEL);
881 	if (!tv_dac)
882 		return NULL;
883 
884 	/* first check TV table */
885 	dac_info = combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE);
886 	if (dac_info) {
887 		rev = RBIOS8(dac_info + 0x3);
888 		if (rev > 4) {
889 			bg = RBIOS8(dac_info + 0xc) & 0xf;
890 			dac = RBIOS8(dac_info + 0xd) & 0xf;
891 			tv_dac->ps2_tvdac_adj = (bg << 16) | (dac << 20);
892 
893 			bg = RBIOS8(dac_info + 0xe) & 0xf;
894 			dac = RBIOS8(dac_info + 0xf) & 0xf;
895 			tv_dac->pal_tvdac_adj = (bg << 16) | (dac << 20);
896 
897 			bg = RBIOS8(dac_info + 0x10) & 0xf;
898 			dac = RBIOS8(dac_info + 0x11) & 0xf;
899 			tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20);
900 			/* if the values are all zeros, use the table */
901 			if (tv_dac->ps2_tvdac_adj)
902 				found = 1;
903 		} else if (rev > 1) {
904 			bg = RBIOS8(dac_info + 0xc) & 0xf;
905 			dac = (RBIOS8(dac_info + 0xc) >> 4) & 0xf;
906 			tv_dac->ps2_tvdac_adj = (bg << 16) | (dac << 20);
907 
908 			bg = RBIOS8(dac_info + 0xd) & 0xf;
909 			dac = (RBIOS8(dac_info + 0xd) >> 4) & 0xf;
910 			tv_dac->pal_tvdac_adj = (bg << 16) | (dac << 20);
911 
912 			bg = RBIOS8(dac_info + 0xe) & 0xf;
913 			dac = (RBIOS8(dac_info + 0xe) >> 4) & 0xf;
914 			tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20);
915 			/* if the values are all zeros, use the table */
916 			if (tv_dac->ps2_tvdac_adj)
917 				found = 1;
918 		}
919 		tv_dac->tv_std = radeon_combios_get_tv_info(rdev);
920 	}
921 	if (!found) {
922 		/* then check CRT table */
923 		dac_info =
924 		    combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE);
925 		if (dac_info) {
926 			rev = RBIOS8(dac_info) & 0x3;
927 			if (rev < 2) {
928 				bg = RBIOS8(dac_info + 0x3) & 0xf;
929 				dac = (RBIOS8(dac_info + 0x3) >> 4) & 0xf;
930 				tv_dac->ps2_tvdac_adj =
931 				    (bg << 16) | (dac << 20);
932 				tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj;
933 				tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj;
934 				/* if the values are all zeros, use the table */
935 				if (tv_dac->ps2_tvdac_adj)
936 					found = 1;
937 			} else {
938 				bg = RBIOS8(dac_info + 0x4) & 0xf;
939 				dac = RBIOS8(dac_info + 0x5) & 0xf;
940 				tv_dac->ps2_tvdac_adj =
941 				    (bg << 16) | (dac << 20);
942 				tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj;
943 				tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj;
944 				/* if the values are all zeros, use the table */
945 				if (tv_dac->ps2_tvdac_adj)
946 					found = 1;
947 			}
948 		} else {
949 			DRM_INFO("No TV DAC info found in BIOS\n");
950 		}
951 	}
952 
953 	if (!found) /* fallback to defaults */
954 		radeon_legacy_get_tv_dac_info_from_table(rdev, tv_dac);
955 
956 	return tv_dac;
957 }
958 
959 static struct radeon_encoder_lvds *radeon_legacy_get_lvds_info_from_regs(struct
960 									 radeon_device
961 									 *rdev)
962 {
963 	struct radeon_encoder_lvds *lvds = NULL;
964 	uint32_t fp_vert_stretch, fp_horz_stretch;
965 	uint32_t ppll_div_sel, ppll_val;
966 	uint32_t lvds_ss_gen_cntl = RREG32(RADEON_LVDS_SS_GEN_CNTL);
967 
968 	lvds = kzalloc(sizeof(struct radeon_encoder_lvds), GFP_KERNEL);
969 
970 	if (!lvds)
971 		return NULL;
972 
973 	fp_vert_stretch = RREG32(RADEON_FP_VERT_STRETCH);
974 	fp_horz_stretch = RREG32(RADEON_FP_HORZ_STRETCH);
975 
976 	/* These should be fail-safe defaults, fingers crossed */
977 	lvds->panel_pwr_delay = 200;
978 	lvds->panel_vcc_delay = 2000;
979 
980 	lvds->lvds_gen_cntl = RREG32(RADEON_LVDS_GEN_CNTL);
981 	lvds->panel_digon_delay = (lvds_ss_gen_cntl >> RADEON_LVDS_PWRSEQ_DELAY1_SHIFT) & 0xf;
982 	lvds->panel_blon_delay = (lvds_ss_gen_cntl >> RADEON_LVDS_PWRSEQ_DELAY2_SHIFT) & 0xf;
983 
984 	if (fp_vert_stretch & RADEON_VERT_STRETCH_ENABLE)
985 		lvds->native_mode.vdisplay =
986 		    ((fp_vert_stretch & RADEON_VERT_PANEL_SIZE) >>
987 		     RADEON_VERT_PANEL_SHIFT) + 1;
988 	else
989 		lvds->native_mode.vdisplay =
990 		    (RREG32(RADEON_CRTC_V_TOTAL_DISP) >> 16) + 1;
991 
992 	if (fp_horz_stretch & RADEON_HORZ_STRETCH_ENABLE)
993 		lvds->native_mode.hdisplay =
994 		    (((fp_horz_stretch & RADEON_HORZ_PANEL_SIZE) >>
995 		      RADEON_HORZ_PANEL_SHIFT) + 1) * 8;
996 	else
997 		lvds->native_mode.hdisplay =
998 		    ((RREG32(RADEON_CRTC_H_TOTAL_DISP) >> 16) + 1) * 8;
999 
1000 	if ((lvds->native_mode.hdisplay < 640) ||
1001 	    (lvds->native_mode.vdisplay < 480)) {
1002 		lvds->native_mode.hdisplay = 640;
1003 		lvds->native_mode.vdisplay = 480;
1004 	}
1005 
1006 	ppll_div_sel = RREG8(RADEON_CLOCK_CNTL_INDEX + 1) & 0x3;
1007 	ppll_val = RREG32_PLL(RADEON_PPLL_DIV_0 + ppll_div_sel);
1008 	if ((ppll_val & 0x000707ff) == 0x1bb)
1009 		lvds->use_bios_dividers = false;
1010 	else {
1011 		lvds->panel_ref_divider =
1012 		    RREG32_PLL(RADEON_PPLL_REF_DIV) & 0x3ff;
1013 		lvds->panel_post_divider = (ppll_val >> 16) & 0x7;
1014 		lvds->panel_fb_divider = ppll_val & 0x7ff;
1015 
1016 		if ((lvds->panel_ref_divider != 0) &&
1017 		    (lvds->panel_fb_divider > 3))
1018 			lvds->use_bios_dividers = true;
1019 	}
1020 	lvds->panel_vcc_delay = 200;
1021 
1022 	DRM_INFO("Panel info derived from registers\n");
1023 	DRM_INFO("Panel Size %dx%d\n", lvds->native_mode.hdisplay,
1024 		 lvds->native_mode.vdisplay);
1025 
1026 	return lvds;
1027 }
1028 
1029 struct radeon_encoder_lvds *radeon_combios_get_lvds_info(struct radeon_encoder
1030 							 *encoder)
1031 {
1032 	struct drm_device *dev = encoder->base.dev;
1033 	struct radeon_device *rdev = dev->dev_private;
1034 	uint16_t lcd_info;
1035 	uint32_t panel_setup;
1036 	char stmp[30];
1037 	int tmp, i;
1038 	struct radeon_encoder_lvds *lvds = NULL;
1039 
1040 	lcd_info = combios_get_table_offset(dev, COMBIOS_LCD_INFO_TABLE);
1041 
1042 	if (lcd_info) {
1043 		lvds = kzalloc(sizeof(struct radeon_encoder_lvds), GFP_KERNEL);
1044 
1045 		if (!lvds)
1046 			return NULL;
1047 
1048 		for (i = 0; i < 24; i++)
1049 			stmp[i] = RBIOS8(lcd_info + i + 1);
1050 		stmp[24] = 0;
1051 
1052 		DRM_INFO("Panel ID String: %s\n", stmp);
1053 
1054 		lvds->native_mode.hdisplay = RBIOS16(lcd_info + 0x19);
1055 		lvds->native_mode.vdisplay = RBIOS16(lcd_info + 0x1b);
1056 
1057 		DRM_INFO("Panel Size %dx%d\n", lvds->native_mode.hdisplay,
1058 			 lvds->native_mode.vdisplay);
1059 
1060 		lvds->panel_vcc_delay = RBIOS16(lcd_info + 0x2c);
1061 		lvds->panel_vcc_delay = min_t(u16, lvds->panel_vcc_delay, 2000);
1062 
1063 		lvds->panel_pwr_delay = RBIOS8(lcd_info + 0x24);
1064 		lvds->panel_digon_delay = RBIOS16(lcd_info + 0x38) & 0xf;
1065 		lvds->panel_blon_delay = (RBIOS16(lcd_info + 0x38) >> 4) & 0xf;
1066 
1067 		lvds->panel_ref_divider = RBIOS16(lcd_info + 0x2e);
1068 		lvds->panel_post_divider = RBIOS8(lcd_info + 0x30);
1069 		lvds->panel_fb_divider = RBIOS16(lcd_info + 0x31);
1070 		if ((lvds->panel_ref_divider != 0) &&
1071 		    (lvds->panel_fb_divider > 3))
1072 			lvds->use_bios_dividers = true;
1073 
1074 		panel_setup = RBIOS32(lcd_info + 0x39);
1075 		lvds->lvds_gen_cntl = 0xff00;
1076 		if (panel_setup & 0x1)
1077 			lvds->lvds_gen_cntl |= RADEON_LVDS_PANEL_FORMAT;
1078 
1079 		if ((panel_setup >> 4) & 0x1)
1080 			lvds->lvds_gen_cntl |= RADEON_LVDS_PANEL_TYPE;
1081 
1082 		switch ((panel_setup >> 8) & 0x7) {
1083 		case 0:
1084 			lvds->lvds_gen_cntl |= RADEON_LVDS_NO_FM;
1085 			break;
1086 		case 1:
1087 			lvds->lvds_gen_cntl |= RADEON_LVDS_2_GREY;
1088 			break;
1089 		case 2:
1090 			lvds->lvds_gen_cntl |= RADEON_LVDS_4_GREY;
1091 			break;
1092 		default:
1093 			break;
1094 		}
1095 
1096 		if ((panel_setup >> 16) & 0x1)
1097 			lvds->lvds_gen_cntl |= RADEON_LVDS_FP_POL_LOW;
1098 
1099 		if ((panel_setup >> 17) & 0x1)
1100 			lvds->lvds_gen_cntl |= RADEON_LVDS_LP_POL_LOW;
1101 
1102 		if ((panel_setup >> 18) & 0x1)
1103 			lvds->lvds_gen_cntl |= RADEON_LVDS_DTM_POL_LOW;
1104 
1105 		if ((panel_setup >> 23) & 0x1)
1106 			lvds->lvds_gen_cntl |= RADEON_LVDS_BL_CLK_SEL;
1107 
1108 		lvds->lvds_gen_cntl |= (panel_setup & 0xf0000000);
1109 
1110 		for (i = 0; i < 32; i++) {
1111 			tmp = RBIOS16(lcd_info + 64 + i * 2);
1112 			if (tmp == 0)
1113 				break;
1114 
1115 			if ((RBIOS16(tmp) == lvds->native_mode.hdisplay) &&
1116 			    (RBIOS16(tmp + 2) == lvds->native_mode.vdisplay)) {
1117 				lvds->native_mode.htotal = lvds->native_mode.hdisplay +
1118 					(RBIOS16(tmp + 17) - RBIOS16(tmp + 19)) * 8;
1119 				lvds->native_mode.hsync_start = lvds->native_mode.hdisplay +
1120 					(RBIOS16(tmp + 21) - RBIOS16(tmp + 19) - 1) * 8;
1121 				lvds->native_mode.hsync_end = lvds->native_mode.hsync_start +
1122 					(RBIOS8(tmp + 23) * 8);
1123 
1124 				lvds->native_mode.vtotal = lvds->native_mode.vdisplay +
1125 					(RBIOS16(tmp + 24) - RBIOS16(tmp + 26));
1126 				lvds->native_mode.vsync_start = lvds->native_mode.vdisplay +
1127 					((RBIOS16(tmp + 28) & 0x7ff) - RBIOS16(tmp + 26));
1128 				lvds->native_mode.vsync_end = lvds->native_mode.vsync_start +
1129 					((RBIOS16(tmp + 28) & 0xf800) >> 11);
1130 
1131 				lvds->native_mode.clock = RBIOS16(tmp + 9) * 10;
1132 				lvds->native_mode.flags = 0;
1133 				/* set crtc values */
1134 				drm_mode_set_crtcinfo(&lvds->native_mode, CRTC_INTERLACE_HALVE_V);
1135 
1136 			}
1137 		}
1138 	} else {
1139 		DRM_INFO("No panel info found in BIOS\n");
1140 		lvds = radeon_legacy_get_lvds_info_from_regs(rdev);
1141 	}
1142 
1143 	if (lvds)
1144 		encoder->native_mode = lvds->native_mode;
1145 	return lvds;
1146 }
1147 
1148 static const struct radeon_tmds_pll default_tmds_pll[CHIP_LAST][4] = {
1149 	{{12000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_R100  */
1150 	{{12000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_RV100 */
1151 	{{0, 0}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_RS100 */
1152 	{{15000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_RV200 */
1153 	{{12000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_RS200 */
1154 	{{15000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_R200  */
1155 	{{15500, 0x81b}, {0xffffffff, 0x83f}, {0, 0}, {0, 0}},	/* CHIP_RV250 */
1156 	{{0, 0}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_RS300 */
1157 	{{13000, 0x400f4}, {15000, 0x400f7}, {0xffffffff, 0x40111}, {0, 0}},	/* CHIP_RV280 */
1158 	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_R300  */
1159 	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_R350  */
1160 	{{15000, 0xb0155}, {0xffffffff, 0xb01cb}, {0, 0}, {0, 0}},	/* CHIP_RV350 */
1161 	{{15000, 0xb0155}, {0xffffffff, 0xb01cb}, {0, 0}, {0, 0}},	/* CHIP_RV380 */
1162 	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_R420  */
1163 	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_R423  */
1164 	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_RV410 */
1165 	{ {0, 0}, {0, 0}, {0, 0}, {0, 0} },	/* CHIP_RS400 */
1166 	{ {0, 0}, {0, 0}, {0, 0}, {0, 0} },	/* CHIP_RS480 */
1167 };
1168 
1169 bool radeon_legacy_get_tmds_info_from_table(struct radeon_encoder *encoder,
1170 					    struct radeon_encoder_int_tmds *tmds)
1171 {
1172 	struct drm_device *dev = encoder->base.dev;
1173 	struct radeon_device *rdev = dev->dev_private;
1174 	int i;
1175 
1176 	for (i = 0; i < 4; i++) {
1177 		tmds->tmds_pll[i].value =
1178 			default_tmds_pll[rdev->family][i].value;
1179 		tmds->tmds_pll[i].freq = default_tmds_pll[rdev->family][i].freq;
1180 	}
1181 
1182 	return true;
1183 }
1184 
1185 bool radeon_legacy_get_tmds_info_from_combios(struct radeon_encoder *encoder,
1186 					      struct radeon_encoder_int_tmds *tmds)
1187 {
1188 	struct drm_device *dev = encoder->base.dev;
1189 	struct radeon_device *rdev = dev->dev_private;
1190 	uint16_t tmds_info;
1191 	int i, n;
1192 	uint8_t ver;
1193 
1194 	tmds_info = combios_get_table_offset(dev, COMBIOS_DFP_INFO_TABLE);
1195 
1196 	if (tmds_info) {
1197 		ver = RBIOS8(tmds_info);
1198 		DRM_INFO("DFP table revision: %d\n", ver);
1199 		if (ver == 3) {
1200 			n = RBIOS8(tmds_info + 5) + 1;
1201 			if (n > 4)
1202 				n = 4;
1203 			for (i = 0; i < n; i++) {
1204 				tmds->tmds_pll[i].value =
1205 				    RBIOS32(tmds_info + i * 10 + 0x08);
1206 				tmds->tmds_pll[i].freq =
1207 				    RBIOS16(tmds_info + i * 10 + 0x10);
1208 				DRM_DEBUG("TMDS PLL From COMBIOS %u %x\n",
1209 					  tmds->tmds_pll[i].freq,
1210 					  tmds->tmds_pll[i].value);
1211 			}
1212 		} else if (ver == 4) {
1213 			int stride = 0;
1214 			n = RBIOS8(tmds_info + 5) + 1;
1215 			if (n > 4)
1216 				n = 4;
1217 			for (i = 0; i < n; i++) {
1218 				tmds->tmds_pll[i].value =
1219 				    RBIOS32(tmds_info + stride + 0x08);
1220 				tmds->tmds_pll[i].freq =
1221 				    RBIOS16(tmds_info + stride + 0x10);
1222 				if (i == 0)
1223 					stride += 10;
1224 				else
1225 					stride += 6;
1226 				DRM_DEBUG("TMDS PLL From COMBIOS %u %x\n",
1227 					  tmds->tmds_pll[i].freq,
1228 					  tmds->tmds_pll[i].value);
1229 			}
1230 		}
1231 	} else {
1232 		DRM_INFO("No TMDS info found in BIOS\n");
1233 		return false;
1234 	}
1235 	return true;
1236 }
1237 
1238 bool radeon_legacy_get_ext_tmds_info_from_table(struct radeon_encoder *encoder,
1239 						struct radeon_encoder_ext_tmds *tmds)
1240 {
1241 	struct drm_device *dev = encoder->base.dev;
1242 	struct radeon_device *rdev = dev->dev_private;
1243 	struct radeon_i2c_bus_rec i2c_bus;
1244 
1245 	/* default for macs */
1246 	i2c_bus = combios_setup_i2c_bus(rdev, RADEON_GPIO_MONID);
1247 	tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO");
1248 
1249 	/* XXX some macs have duallink chips */
1250 	switch (rdev->mode_info.connector_table) {
1251 	case CT_POWERBOOK_EXTERNAL:
1252 	case CT_MINI_EXTERNAL:
1253 	default:
1254 		tmds->dvo_chip = DVO_SIL164;
1255 		tmds->slave_addr = 0x70 >> 1; /* 7 bit addressing */
1256 		break;
1257 	}
1258 
1259 	return true;
1260 }
1261 
1262 bool radeon_legacy_get_ext_tmds_info_from_combios(struct radeon_encoder *encoder,
1263 						  struct radeon_encoder_ext_tmds *tmds)
1264 {
1265 	struct drm_device *dev = encoder->base.dev;
1266 	struct radeon_device *rdev = dev->dev_private;
1267 	uint16_t offset;
1268 	uint8_t ver, id, blocks, clk, data;
1269 	int i;
1270 	enum radeon_combios_ddc gpio;
1271 	struct radeon_i2c_bus_rec i2c_bus;
1272 
1273 	tmds->i2c_bus = NULL;
1274 	if (rdev->flags & RADEON_IS_IGP) {
1275 		offset = combios_get_table_offset(dev, COMBIOS_I2C_INFO_TABLE);
1276 		if (offset) {
1277 			ver = RBIOS8(offset);
1278 			DRM_INFO("GPIO Table revision: %d\n", ver);
1279 			blocks = RBIOS8(offset + 2);
1280 			for (i = 0; i < blocks; i++) {
1281 				id = RBIOS8(offset + 3 + (i * 5) + 0);
1282 				if (id == 136) {
1283 					clk = RBIOS8(offset + 3 + (i * 5) + 3);
1284 					data = RBIOS8(offset + 3 + (i * 5) + 4);
1285 					i2c_bus.valid = true;
1286 					i2c_bus.mask_clk_mask = (1 << clk);
1287 					i2c_bus.mask_data_mask = (1 << data);
1288 					i2c_bus.a_clk_mask = (1 << clk);
1289 					i2c_bus.a_data_mask = (1 << data);
1290 					i2c_bus.en_clk_mask = (1 << clk);
1291 					i2c_bus.en_data_mask = (1 << data);
1292 					i2c_bus.y_clk_mask = (1 << clk);
1293 					i2c_bus.y_data_mask = (1 << data);
1294 					i2c_bus.mask_clk_reg = RADEON_GPIOPAD_MASK;
1295 					i2c_bus.mask_data_reg = RADEON_GPIOPAD_MASK;
1296 					i2c_bus.a_clk_reg = RADEON_GPIOPAD_A;
1297 					i2c_bus.a_data_reg = RADEON_GPIOPAD_A;
1298 					i2c_bus.en_clk_reg = RADEON_GPIOPAD_EN;
1299 					i2c_bus.en_data_reg = RADEON_GPIOPAD_EN;
1300 					i2c_bus.y_clk_reg = RADEON_GPIOPAD_Y;
1301 					i2c_bus.y_data_reg = RADEON_GPIOPAD_Y;
1302 					tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO");
1303 					tmds->dvo_chip = DVO_SIL164;
1304 					tmds->slave_addr = 0x70 >> 1; /* 7 bit addressing */
1305 					break;
1306 				}
1307 			}
1308 		}
1309 	} else {
1310 		offset = combios_get_table_offset(dev, COMBIOS_EXT_TMDS_INFO_TABLE);
1311 		if (offset) {
1312 			ver = RBIOS8(offset);
1313 			DRM_INFO("External TMDS Table revision: %d\n", ver);
1314 			tmds->slave_addr = RBIOS8(offset + 4 + 2);
1315 			tmds->slave_addr >>= 1; /* 7 bit addressing */
1316 			gpio = RBIOS8(offset + 4 + 3);
1317 			switch (gpio) {
1318 			case DDC_MONID:
1319 				i2c_bus = combios_setup_i2c_bus(rdev, RADEON_GPIO_MONID);
1320 				tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO");
1321 				break;
1322 			case DDC_DVI:
1323 				i2c_bus = combios_setup_i2c_bus(rdev, RADEON_GPIO_DVI_DDC);
1324 				tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO");
1325 				break;
1326 			case DDC_VGA:
1327 				i2c_bus = combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC);
1328 				tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO");
1329 				break;
1330 			case DDC_CRT2:
1331 				/* R3xx+ chips don't have GPIO_CRT2_DDC gpio pad */
1332 				if (rdev->family >= CHIP_R300)
1333 					i2c_bus = combios_setup_i2c_bus(rdev, RADEON_GPIO_MONID);
1334 				else
1335 					i2c_bus = combios_setup_i2c_bus(rdev, RADEON_GPIO_CRT2_DDC);
1336 				tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO");
1337 				break;
1338 			case DDC_LCD: /* MM i2c */
1339 				i2c_bus.valid = true;
1340 				i2c_bus.hw_capable = true;
1341 				i2c_bus.mm_i2c = true;
1342 				tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO");
1343 				break;
1344 			default:
1345 				DRM_ERROR("Unsupported gpio %d\n", gpio);
1346 				break;
1347 			}
1348 		}
1349 	}
1350 
1351 	if (!tmds->i2c_bus) {
1352 		DRM_INFO("No valid Ext TMDS info found in BIOS\n");
1353 		return false;
1354 	}
1355 
1356 	return true;
1357 }
1358 
1359 bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
1360 {
1361 	struct radeon_device *rdev = dev->dev_private;
1362 	struct radeon_i2c_bus_rec ddc_i2c;
1363 	struct radeon_hpd hpd;
1364 
1365 	rdev->mode_info.connector_table = radeon_connector_table;
1366 	if (rdev->mode_info.connector_table == CT_NONE) {
1367 #ifdef CONFIG_PPC_PMAC
1368 		if (of_machine_is_compatible("PowerBook3,3")) {
1369 			/* powerbook with VGA */
1370 			rdev->mode_info.connector_table = CT_POWERBOOK_VGA;
1371 		} else if (of_machine_is_compatible("PowerBook3,4") ||
1372 			   of_machine_is_compatible("PowerBook3,5")) {
1373 			/* powerbook with internal tmds */
1374 			rdev->mode_info.connector_table = CT_POWERBOOK_INTERNAL;
1375 		} else if (of_machine_is_compatible("PowerBook5,1") ||
1376 			   of_machine_is_compatible("PowerBook5,2") ||
1377 			   of_machine_is_compatible("PowerBook5,3") ||
1378 			   of_machine_is_compatible("PowerBook5,4") ||
1379 			   of_machine_is_compatible("PowerBook5,5")) {
1380 			/* powerbook with external single link tmds (sil164) */
1381 			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
1382 		} else if (of_machine_is_compatible("PowerBook5,6")) {
1383 			/* powerbook with external dual or single link tmds */
1384 			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
1385 		} else if (of_machine_is_compatible("PowerBook5,7") ||
1386 			   of_machine_is_compatible("PowerBook5,8") ||
1387 			   of_machine_is_compatible("PowerBook5,9")) {
1388 			/* PowerBook6,2 ? */
1389 			/* powerbook with external dual link tmds (sil1178?) */
1390 			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
1391 		} else if (of_machine_is_compatible("PowerBook4,1") ||
1392 			   of_machine_is_compatible("PowerBook4,2") ||
1393 			   of_machine_is_compatible("PowerBook4,3") ||
1394 			   of_machine_is_compatible("PowerBook6,3") ||
1395 			   of_machine_is_compatible("PowerBook6,5") ||
1396 			   of_machine_is_compatible("PowerBook6,7")) {
1397 			/* ibook */
1398 			rdev->mode_info.connector_table = CT_IBOOK;
1399 		} else if (of_machine_is_compatible("PowerMac4,4")) {
1400 			/* emac */
1401 			rdev->mode_info.connector_table = CT_EMAC;
1402 		} else if (of_machine_is_compatible("PowerMac10,1")) {
1403 			/* mini with internal tmds */
1404 			rdev->mode_info.connector_table = CT_MINI_INTERNAL;
1405 		} else if (of_machine_is_compatible("PowerMac10,2")) {
1406 			/* mini with external tmds */
1407 			rdev->mode_info.connector_table = CT_MINI_EXTERNAL;
1408 		} else if (of_machine_is_compatible("PowerMac12,1")) {
1409 			/* PowerMac8,1 ? */
1410 			/* imac g5 isight */
1411 			rdev->mode_info.connector_table = CT_IMAC_G5_ISIGHT;
1412 		} else
1413 #endif /* CONFIG_PPC_PMAC */
1414 			rdev->mode_info.connector_table = CT_GENERIC;
1415 	}
1416 
1417 	switch (rdev->mode_info.connector_table) {
1418 	case CT_GENERIC:
1419 		DRM_INFO("Connector Table: %d (generic)\n",
1420 			 rdev->mode_info.connector_table);
1421 		/* these are the most common settings */
1422 		if (rdev->flags & RADEON_SINGLE_CRTC) {
1423 			/* VGA - primary dac */
1424 			ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC);
1425 			hpd.hpd = RADEON_HPD_NONE;
1426 			radeon_add_legacy_encoder(dev,
1427 						  radeon_get_encoder_id(dev,
1428 									ATOM_DEVICE_CRT1_SUPPORT,
1429 									1),
1430 						  ATOM_DEVICE_CRT1_SUPPORT);
1431 			radeon_add_legacy_connector(dev, 0,
1432 						    ATOM_DEVICE_CRT1_SUPPORT,
1433 						    DRM_MODE_CONNECTOR_VGA,
1434 						    &ddc_i2c,
1435 						    CONNECTOR_OBJECT_ID_VGA,
1436 						    &hpd);
1437 		} else if (rdev->flags & RADEON_IS_MOBILITY) {
1438 			/* LVDS */
1439 			ddc_i2c = combios_setup_i2c_bus(rdev, 0);
1440 			hpd.hpd = RADEON_HPD_NONE;
1441 			radeon_add_legacy_encoder(dev,
1442 						  radeon_get_encoder_id(dev,
1443 									ATOM_DEVICE_LCD1_SUPPORT,
1444 									0),
1445 						  ATOM_DEVICE_LCD1_SUPPORT);
1446 			radeon_add_legacy_connector(dev, 0,
1447 						    ATOM_DEVICE_LCD1_SUPPORT,
1448 						    DRM_MODE_CONNECTOR_LVDS,
1449 						    &ddc_i2c,
1450 						    CONNECTOR_OBJECT_ID_LVDS,
1451 						    &hpd);
1452 
1453 			/* VGA - primary dac */
1454 			ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC);
1455 			hpd.hpd = RADEON_HPD_NONE;
1456 			radeon_add_legacy_encoder(dev,
1457 						  radeon_get_encoder_id(dev,
1458 									ATOM_DEVICE_CRT1_SUPPORT,
1459 									1),
1460 						  ATOM_DEVICE_CRT1_SUPPORT);
1461 			radeon_add_legacy_connector(dev, 1,
1462 						    ATOM_DEVICE_CRT1_SUPPORT,
1463 						    DRM_MODE_CONNECTOR_VGA,
1464 						    &ddc_i2c,
1465 						    CONNECTOR_OBJECT_ID_VGA,
1466 						    &hpd);
1467 		} else {
1468 			/* DVI-I - tv dac, int tmds */
1469 			ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_DVI_DDC);
1470 			hpd.hpd = RADEON_HPD_1;
1471 			radeon_add_legacy_encoder(dev,
1472 						  radeon_get_encoder_id(dev,
1473 									ATOM_DEVICE_DFP1_SUPPORT,
1474 									0),
1475 						  ATOM_DEVICE_DFP1_SUPPORT);
1476 			radeon_add_legacy_encoder(dev,
1477 						  radeon_get_encoder_id(dev,
1478 									ATOM_DEVICE_CRT2_SUPPORT,
1479 									2),
1480 						  ATOM_DEVICE_CRT2_SUPPORT);
1481 			radeon_add_legacy_connector(dev, 0,
1482 						    ATOM_DEVICE_DFP1_SUPPORT |
1483 						    ATOM_DEVICE_CRT2_SUPPORT,
1484 						    DRM_MODE_CONNECTOR_DVII,
1485 						    &ddc_i2c,
1486 						    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
1487 						    &hpd);
1488 
1489 			/* VGA - primary dac */
1490 			ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC);
1491 			hpd.hpd = RADEON_HPD_NONE;
1492 			radeon_add_legacy_encoder(dev,
1493 						  radeon_get_encoder_id(dev,
1494 									ATOM_DEVICE_CRT1_SUPPORT,
1495 									1),
1496 						  ATOM_DEVICE_CRT1_SUPPORT);
1497 			radeon_add_legacy_connector(dev, 1,
1498 						    ATOM_DEVICE_CRT1_SUPPORT,
1499 						    DRM_MODE_CONNECTOR_VGA,
1500 						    &ddc_i2c,
1501 						    CONNECTOR_OBJECT_ID_VGA,
1502 						    &hpd);
1503 		}
1504 
1505 		if (rdev->family != CHIP_R100 && rdev->family != CHIP_R200) {
1506 			/* TV - tv dac */
1507 			ddc_i2c.valid = false;
1508 			hpd.hpd = RADEON_HPD_NONE;
1509 			radeon_add_legacy_encoder(dev,
1510 						  radeon_get_encoder_id(dev,
1511 									ATOM_DEVICE_TV1_SUPPORT,
1512 									2),
1513 						  ATOM_DEVICE_TV1_SUPPORT);
1514 			radeon_add_legacy_connector(dev, 2,
1515 						    ATOM_DEVICE_TV1_SUPPORT,
1516 						    DRM_MODE_CONNECTOR_SVIDEO,
1517 						    &ddc_i2c,
1518 						    CONNECTOR_OBJECT_ID_SVIDEO,
1519 						    &hpd);
1520 		}
1521 		break;
1522 	case CT_IBOOK:
1523 		DRM_INFO("Connector Table: %d (ibook)\n",
1524 			 rdev->mode_info.connector_table);
1525 		/* LVDS */
1526 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_DVI_DDC);
1527 		hpd.hpd = RADEON_HPD_NONE;
1528 		radeon_add_legacy_encoder(dev,
1529 					  radeon_get_encoder_id(dev,
1530 								ATOM_DEVICE_LCD1_SUPPORT,
1531 								0),
1532 					  ATOM_DEVICE_LCD1_SUPPORT);
1533 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
1534 					    DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
1535 					    CONNECTOR_OBJECT_ID_LVDS,
1536 					    &hpd);
1537 		/* VGA - TV DAC */
1538 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC);
1539 		hpd.hpd = RADEON_HPD_NONE;
1540 		radeon_add_legacy_encoder(dev,
1541 					  radeon_get_encoder_id(dev,
1542 								ATOM_DEVICE_CRT2_SUPPORT,
1543 								2),
1544 					  ATOM_DEVICE_CRT2_SUPPORT);
1545 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT2_SUPPORT,
1546 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
1547 					    CONNECTOR_OBJECT_ID_VGA,
1548 					    &hpd);
1549 		/* TV - TV DAC */
1550 		ddc_i2c.valid = false;
1551 		hpd.hpd = RADEON_HPD_NONE;
1552 		radeon_add_legacy_encoder(dev,
1553 					  radeon_get_encoder_id(dev,
1554 								ATOM_DEVICE_TV1_SUPPORT,
1555 								2),
1556 					  ATOM_DEVICE_TV1_SUPPORT);
1557 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
1558 					    DRM_MODE_CONNECTOR_SVIDEO,
1559 					    &ddc_i2c,
1560 					    CONNECTOR_OBJECT_ID_SVIDEO,
1561 					    &hpd);
1562 		break;
1563 	case CT_POWERBOOK_EXTERNAL:
1564 		DRM_INFO("Connector Table: %d (powerbook external tmds)\n",
1565 			 rdev->mode_info.connector_table);
1566 		/* LVDS */
1567 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_DVI_DDC);
1568 		hpd.hpd = RADEON_HPD_NONE;
1569 		radeon_add_legacy_encoder(dev,
1570 					  radeon_get_encoder_id(dev,
1571 								ATOM_DEVICE_LCD1_SUPPORT,
1572 								0),
1573 					  ATOM_DEVICE_LCD1_SUPPORT);
1574 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
1575 					    DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
1576 					    CONNECTOR_OBJECT_ID_LVDS,
1577 					    &hpd);
1578 		/* DVI-I - primary dac, ext tmds */
1579 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC);
1580 		hpd.hpd = RADEON_HPD_2; /* ??? */
1581 		radeon_add_legacy_encoder(dev,
1582 					  radeon_get_encoder_id(dev,
1583 								ATOM_DEVICE_DFP2_SUPPORT,
1584 								0),
1585 					  ATOM_DEVICE_DFP2_SUPPORT);
1586 		radeon_add_legacy_encoder(dev,
1587 					  radeon_get_encoder_id(dev,
1588 								ATOM_DEVICE_CRT1_SUPPORT,
1589 								1),
1590 					  ATOM_DEVICE_CRT1_SUPPORT);
1591 		/* XXX some are SL */
1592 		radeon_add_legacy_connector(dev, 1,
1593 					    ATOM_DEVICE_DFP2_SUPPORT |
1594 					    ATOM_DEVICE_CRT1_SUPPORT,
1595 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
1596 					    CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I,
1597 					    &hpd);
1598 		/* TV - TV DAC */
1599 		ddc_i2c.valid = false;
1600 		hpd.hpd = RADEON_HPD_NONE;
1601 		radeon_add_legacy_encoder(dev,
1602 					  radeon_get_encoder_id(dev,
1603 								ATOM_DEVICE_TV1_SUPPORT,
1604 								2),
1605 					  ATOM_DEVICE_TV1_SUPPORT);
1606 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
1607 					    DRM_MODE_CONNECTOR_SVIDEO,
1608 					    &ddc_i2c,
1609 					    CONNECTOR_OBJECT_ID_SVIDEO,
1610 					    &hpd);
1611 		break;
1612 	case CT_POWERBOOK_INTERNAL:
1613 		DRM_INFO("Connector Table: %d (powerbook internal tmds)\n",
1614 			 rdev->mode_info.connector_table);
1615 		/* LVDS */
1616 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_DVI_DDC);
1617 		hpd.hpd = RADEON_HPD_NONE;
1618 		radeon_add_legacy_encoder(dev,
1619 					  radeon_get_encoder_id(dev,
1620 								ATOM_DEVICE_LCD1_SUPPORT,
1621 								0),
1622 					  ATOM_DEVICE_LCD1_SUPPORT);
1623 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
1624 					    DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
1625 					    CONNECTOR_OBJECT_ID_LVDS,
1626 					    &hpd);
1627 		/* DVI-I - primary dac, int tmds */
1628 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC);
1629 		hpd.hpd = RADEON_HPD_1; /* ??? */
1630 		radeon_add_legacy_encoder(dev,
1631 					  radeon_get_encoder_id(dev,
1632 								ATOM_DEVICE_DFP1_SUPPORT,
1633 								0),
1634 					  ATOM_DEVICE_DFP1_SUPPORT);
1635 		radeon_add_legacy_encoder(dev,
1636 					  radeon_get_encoder_id(dev,
1637 								ATOM_DEVICE_CRT1_SUPPORT,
1638 								1),
1639 					  ATOM_DEVICE_CRT1_SUPPORT);
1640 		radeon_add_legacy_connector(dev, 1,
1641 					    ATOM_DEVICE_DFP1_SUPPORT |
1642 					    ATOM_DEVICE_CRT1_SUPPORT,
1643 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
1644 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
1645 					    &hpd);
1646 		/* TV - TV DAC */
1647 		ddc_i2c.valid = false;
1648 		hpd.hpd = RADEON_HPD_NONE;
1649 		radeon_add_legacy_encoder(dev,
1650 					  radeon_get_encoder_id(dev,
1651 								ATOM_DEVICE_TV1_SUPPORT,
1652 								2),
1653 					  ATOM_DEVICE_TV1_SUPPORT);
1654 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
1655 					    DRM_MODE_CONNECTOR_SVIDEO,
1656 					    &ddc_i2c,
1657 					    CONNECTOR_OBJECT_ID_SVIDEO,
1658 					    &hpd);
1659 		break;
1660 	case CT_POWERBOOK_VGA:
1661 		DRM_INFO("Connector Table: %d (powerbook vga)\n",
1662 			 rdev->mode_info.connector_table);
1663 		/* LVDS */
1664 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_DVI_DDC);
1665 		hpd.hpd = RADEON_HPD_NONE;
1666 		radeon_add_legacy_encoder(dev,
1667 					  radeon_get_encoder_id(dev,
1668 								ATOM_DEVICE_LCD1_SUPPORT,
1669 								0),
1670 					  ATOM_DEVICE_LCD1_SUPPORT);
1671 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
1672 					    DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
1673 					    CONNECTOR_OBJECT_ID_LVDS,
1674 					    &hpd);
1675 		/* VGA - primary dac */
1676 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC);
1677 		hpd.hpd = RADEON_HPD_NONE;
1678 		radeon_add_legacy_encoder(dev,
1679 					  radeon_get_encoder_id(dev,
1680 								ATOM_DEVICE_CRT1_SUPPORT,
1681 								1),
1682 					  ATOM_DEVICE_CRT1_SUPPORT);
1683 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT1_SUPPORT,
1684 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
1685 					    CONNECTOR_OBJECT_ID_VGA,
1686 					    &hpd);
1687 		/* TV - TV DAC */
1688 		ddc_i2c.valid = false;
1689 		hpd.hpd = RADEON_HPD_NONE;
1690 		radeon_add_legacy_encoder(dev,
1691 					  radeon_get_encoder_id(dev,
1692 								ATOM_DEVICE_TV1_SUPPORT,
1693 								2),
1694 					  ATOM_DEVICE_TV1_SUPPORT);
1695 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
1696 					    DRM_MODE_CONNECTOR_SVIDEO,
1697 					    &ddc_i2c,
1698 					    CONNECTOR_OBJECT_ID_SVIDEO,
1699 					    &hpd);
1700 		break;
1701 	case CT_MINI_EXTERNAL:
1702 		DRM_INFO("Connector Table: %d (mini external tmds)\n",
1703 			 rdev->mode_info.connector_table);
1704 		/* DVI-I - tv dac, ext tmds */
1705 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_CRT2_DDC);
1706 		hpd.hpd = RADEON_HPD_2; /* ??? */
1707 		radeon_add_legacy_encoder(dev,
1708 					  radeon_get_encoder_id(dev,
1709 								ATOM_DEVICE_DFP2_SUPPORT,
1710 								0),
1711 					  ATOM_DEVICE_DFP2_SUPPORT);
1712 		radeon_add_legacy_encoder(dev,
1713 					  radeon_get_encoder_id(dev,
1714 								ATOM_DEVICE_CRT2_SUPPORT,
1715 								2),
1716 					  ATOM_DEVICE_CRT2_SUPPORT);
1717 		/* XXX are any DL? */
1718 		radeon_add_legacy_connector(dev, 0,
1719 					    ATOM_DEVICE_DFP2_SUPPORT |
1720 					    ATOM_DEVICE_CRT2_SUPPORT,
1721 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
1722 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
1723 					    &hpd);
1724 		/* TV - TV DAC */
1725 		ddc_i2c.valid = false;
1726 		hpd.hpd = RADEON_HPD_NONE;
1727 		radeon_add_legacy_encoder(dev,
1728 					  radeon_get_encoder_id(dev,
1729 								ATOM_DEVICE_TV1_SUPPORT,
1730 								2),
1731 					  ATOM_DEVICE_TV1_SUPPORT);
1732 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_TV1_SUPPORT,
1733 					    DRM_MODE_CONNECTOR_SVIDEO,
1734 					    &ddc_i2c,
1735 					    CONNECTOR_OBJECT_ID_SVIDEO,
1736 					    &hpd);
1737 		break;
1738 	case CT_MINI_INTERNAL:
1739 		DRM_INFO("Connector Table: %d (mini internal tmds)\n",
1740 			 rdev->mode_info.connector_table);
1741 		/* DVI-I - tv dac, int tmds */
1742 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_CRT2_DDC);
1743 		hpd.hpd = RADEON_HPD_1; /* ??? */
1744 		radeon_add_legacy_encoder(dev,
1745 					  radeon_get_encoder_id(dev,
1746 								ATOM_DEVICE_DFP1_SUPPORT,
1747 								0),
1748 					  ATOM_DEVICE_DFP1_SUPPORT);
1749 		radeon_add_legacy_encoder(dev,
1750 					  radeon_get_encoder_id(dev,
1751 								ATOM_DEVICE_CRT2_SUPPORT,
1752 								2),
1753 					  ATOM_DEVICE_CRT2_SUPPORT);
1754 		radeon_add_legacy_connector(dev, 0,
1755 					    ATOM_DEVICE_DFP1_SUPPORT |
1756 					    ATOM_DEVICE_CRT2_SUPPORT,
1757 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
1758 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
1759 					    &hpd);
1760 		/* TV - TV DAC */
1761 		ddc_i2c.valid = false;
1762 		hpd.hpd = RADEON_HPD_NONE;
1763 		radeon_add_legacy_encoder(dev,
1764 					  radeon_get_encoder_id(dev,
1765 								ATOM_DEVICE_TV1_SUPPORT,
1766 								2),
1767 					  ATOM_DEVICE_TV1_SUPPORT);
1768 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_TV1_SUPPORT,
1769 					    DRM_MODE_CONNECTOR_SVIDEO,
1770 					    &ddc_i2c,
1771 					    CONNECTOR_OBJECT_ID_SVIDEO,
1772 					    &hpd);
1773 		break;
1774 	case CT_IMAC_G5_ISIGHT:
1775 		DRM_INFO("Connector Table: %d (imac g5 isight)\n",
1776 			 rdev->mode_info.connector_table);
1777 		/* DVI-D - int tmds */
1778 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_MONID);
1779 		hpd.hpd = RADEON_HPD_1; /* ??? */
1780 		radeon_add_legacy_encoder(dev,
1781 					  radeon_get_encoder_id(dev,
1782 								ATOM_DEVICE_DFP1_SUPPORT,
1783 								0),
1784 					  ATOM_DEVICE_DFP1_SUPPORT);
1785 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_DFP1_SUPPORT,
1786 					    DRM_MODE_CONNECTOR_DVID, &ddc_i2c,
1787 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D,
1788 					    &hpd);
1789 		/* VGA - tv dac */
1790 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_DVI_DDC);
1791 		hpd.hpd = RADEON_HPD_NONE;
1792 		radeon_add_legacy_encoder(dev,
1793 					  radeon_get_encoder_id(dev,
1794 								ATOM_DEVICE_CRT2_SUPPORT,
1795 								2),
1796 					  ATOM_DEVICE_CRT2_SUPPORT);
1797 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT2_SUPPORT,
1798 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
1799 					    CONNECTOR_OBJECT_ID_VGA,
1800 					    &hpd);
1801 		/* TV - TV DAC */
1802 		ddc_i2c.valid = false;
1803 		hpd.hpd = RADEON_HPD_NONE;
1804 		radeon_add_legacy_encoder(dev,
1805 					  radeon_get_encoder_id(dev,
1806 								ATOM_DEVICE_TV1_SUPPORT,
1807 								2),
1808 					  ATOM_DEVICE_TV1_SUPPORT);
1809 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
1810 					    DRM_MODE_CONNECTOR_SVIDEO,
1811 					    &ddc_i2c,
1812 					    CONNECTOR_OBJECT_ID_SVIDEO,
1813 					    &hpd);
1814 		break;
1815 	case CT_EMAC:
1816 		DRM_INFO("Connector Table: %d (emac)\n",
1817 			 rdev->mode_info.connector_table);
1818 		/* VGA - primary dac */
1819 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC);
1820 		hpd.hpd = RADEON_HPD_NONE;
1821 		radeon_add_legacy_encoder(dev,
1822 					  radeon_get_encoder_id(dev,
1823 								ATOM_DEVICE_CRT1_SUPPORT,
1824 								1),
1825 					  ATOM_DEVICE_CRT1_SUPPORT);
1826 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_CRT1_SUPPORT,
1827 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
1828 					    CONNECTOR_OBJECT_ID_VGA,
1829 					    &hpd);
1830 		/* VGA - tv dac */
1831 		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_CRT2_DDC);
1832 		hpd.hpd = RADEON_HPD_NONE;
1833 		radeon_add_legacy_encoder(dev,
1834 					  radeon_get_encoder_id(dev,
1835 								ATOM_DEVICE_CRT2_SUPPORT,
1836 								2),
1837 					  ATOM_DEVICE_CRT2_SUPPORT);
1838 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT2_SUPPORT,
1839 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
1840 					    CONNECTOR_OBJECT_ID_VGA,
1841 					    &hpd);
1842 		/* TV - TV DAC */
1843 		ddc_i2c.valid = false;
1844 		hpd.hpd = RADEON_HPD_NONE;
1845 		radeon_add_legacy_encoder(dev,
1846 					  radeon_get_encoder_id(dev,
1847 								ATOM_DEVICE_TV1_SUPPORT,
1848 								2),
1849 					  ATOM_DEVICE_TV1_SUPPORT);
1850 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
1851 					    DRM_MODE_CONNECTOR_SVIDEO,
1852 					    &ddc_i2c,
1853 					    CONNECTOR_OBJECT_ID_SVIDEO,
1854 					    &hpd);
1855 		break;
1856 	default:
1857 		DRM_INFO("Connector table: %d (invalid)\n",
1858 			 rdev->mode_info.connector_table);
1859 		return false;
1860 	}
1861 
1862 	radeon_link_encoder_connector(dev);
1863 
1864 	return true;
1865 }
1866 
1867 static bool radeon_apply_legacy_quirks(struct drm_device *dev,
1868 				       int bios_index,
1869 				       enum radeon_combios_connector
1870 				       *legacy_connector,
1871 				       struct radeon_i2c_bus_rec *ddc_i2c,
1872 				       struct radeon_hpd *hpd)
1873 {
1874 	struct radeon_device *rdev = dev->dev_private;
1875 
1876 	/* XPRESS DDC quirks */
1877 	if ((rdev->family == CHIP_RS400 ||
1878 	     rdev->family == CHIP_RS480) &&
1879 	    ddc_i2c->mask_clk_reg == RADEON_GPIO_CRT2_DDC)
1880 		*ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_MONID);
1881 	else if ((rdev->family == CHIP_RS400 ||
1882 		  rdev->family == CHIP_RS480) &&
1883 		 ddc_i2c->mask_clk_reg == RADEON_GPIO_MONID) {
1884 		*ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIOPAD_MASK);
1885 		ddc_i2c->mask_clk_mask = (0x20 << 8);
1886 		ddc_i2c->mask_data_mask = 0x80;
1887 		ddc_i2c->a_clk_mask = (0x20 << 8);
1888 		ddc_i2c->a_data_mask = 0x80;
1889 		ddc_i2c->en_clk_mask = (0x20 << 8);
1890 		ddc_i2c->en_data_mask = 0x80;
1891 		ddc_i2c->y_clk_mask = (0x20 << 8);
1892 		ddc_i2c->y_data_mask = 0x80;
1893 	}
1894 
1895 	/* R3xx+ chips don't have GPIO_CRT2_DDC gpio pad */
1896 	if ((rdev->family >= CHIP_R300) &&
1897 	    ddc_i2c->mask_clk_reg == RADEON_GPIO_CRT2_DDC)
1898 		*ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_DVI_DDC);
1899 
1900 	/* Certain IBM chipset RN50s have a BIOS reporting two VGAs,
1901 	   one with VGA DDC and one with CRT2 DDC. - kill the CRT2 DDC one */
1902 	if (dev->pdev->device == 0x515e &&
1903 	    dev->pdev->subsystem_vendor == 0x1014) {
1904 		if (*legacy_connector == CONNECTOR_CRT_LEGACY &&
1905 		    ddc_i2c->mask_clk_reg == RADEON_GPIO_CRT2_DDC)
1906 			return false;
1907 	}
1908 
1909 	/* Some RV100 cards with 2 VGA ports show up with DVI+VGA */
1910 	if (dev->pdev->device == 0x5159 &&
1911 	    dev->pdev->subsystem_vendor == 0x1002 &&
1912 	    dev->pdev->subsystem_device == 0x013a) {
1913 		if (*legacy_connector == CONNECTOR_DVI_I_LEGACY)
1914 			*legacy_connector = CONNECTOR_CRT_LEGACY;
1915 
1916 	}
1917 
1918 	/* X300 card with extra non-existent DVI port */
1919 	if (dev->pdev->device == 0x5B60 &&
1920 	    dev->pdev->subsystem_vendor == 0x17af &&
1921 	    dev->pdev->subsystem_device == 0x201e && bios_index == 2) {
1922 		if (*legacy_connector == CONNECTOR_DVI_I_LEGACY)
1923 			return false;
1924 	}
1925 
1926 	return true;
1927 }
1928 
1929 static bool radeon_apply_legacy_tv_quirks(struct drm_device *dev)
1930 {
1931 	/* Acer 5102 has non-existent TV port */
1932 	if (dev->pdev->device == 0x5975 &&
1933 	    dev->pdev->subsystem_vendor == 0x1025 &&
1934 	    dev->pdev->subsystem_device == 0x009f)
1935 		return false;
1936 
1937 	/* HP dc5750 has non-existent TV port */
1938 	if (dev->pdev->device == 0x5974 &&
1939 	    dev->pdev->subsystem_vendor == 0x103c &&
1940 	    dev->pdev->subsystem_device == 0x280a)
1941 		return false;
1942 
1943 	/* MSI S270 has non-existent TV port */
1944 	if (dev->pdev->device == 0x5955 &&
1945 	    dev->pdev->subsystem_vendor == 0x1462 &&
1946 	    dev->pdev->subsystem_device == 0x0131)
1947 		return false;
1948 
1949 	return true;
1950 }
1951 
1952 static uint16_t combios_check_dl_dvi(struct drm_device *dev, int is_dvi_d)
1953 {
1954 	struct radeon_device *rdev = dev->dev_private;
1955 	uint32_t ext_tmds_info;
1956 
1957 	if (rdev->flags & RADEON_IS_IGP) {
1958 		if (is_dvi_d)
1959 			return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D;
1960 		else
1961 			return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I;
1962 	}
1963 	ext_tmds_info = combios_get_table_offset(dev, COMBIOS_EXT_TMDS_INFO_TABLE);
1964 	if (ext_tmds_info) {
1965 		uint8_t rev = RBIOS8(ext_tmds_info);
1966 		uint8_t flags = RBIOS8(ext_tmds_info + 4 + 5);
1967 		if (rev >= 3) {
1968 			if (is_dvi_d)
1969 				return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D;
1970 			else
1971 				return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I;
1972 		} else {
1973 			if (flags & 1) {
1974 				if (is_dvi_d)
1975 					return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D;
1976 				else
1977 					return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I;
1978 			}
1979 		}
1980 	}
1981 	if (is_dvi_d)
1982 		return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D;
1983 	else
1984 		return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I;
1985 }
1986 
1987 bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev)
1988 {
1989 	struct radeon_device *rdev = dev->dev_private;
1990 	uint32_t conn_info, entry, devices;
1991 	uint16_t tmp, connector_object_id;
1992 	enum radeon_combios_ddc ddc_type;
1993 	enum radeon_combios_connector connector;
1994 	int i = 0;
1995 	struct radeon_i2c_bus_rec ddc_i2c;
1996 	struct radeon_hpd hpd;
1997 
1998 	conn_info = combios_get_table_offset(dev, COMBIOS_CONNECTOR_INFO_TABLE);
1999 	if (conn_info) {
2000 		for (i = 0; i < 4; i++) {
2001 			entry = conn_info + 2 + i * 2;
2002 
2003 			if (!RBIOS16(entry))
2004 				break;
2005 
2006 			tmp = RBIOS16(entry);
2007 
2008 			connector = (tmp >> 12) & 0xf;
2009 
2010 			ddc_type = (tmp >> 8) & 0xf;
2011 			switch (ddc_type) {
2012 			case DDC_MONID:
2013 				ddc_i2c =
2014 					combios_setup_i2c_bus(rdev, RADEON_GPIO_MONID);
2015 				break;
2016 			case DDC_DVI:
2017 				ddc_i2c =
2018 					combios_setup_i2c_bus(rdev, RADEON_GPIO_DVI_DDC);
2019 				break;
2020 			case DDC_VGA:
2021 				ddc_i2c =
2022 					combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC);
2023 				break;
2024 			case DDC_CRT2:
2025 				ddc_i2c =
2026 					combios_setup_i2c_bus(rdev, RADEON_GPIO_CRT2_DDC);
2027 				break;
2028 			default:
2029 				ddc_i2c.valid = false;
2030 				break;
2031 			}
2032 
2033 			switch (connector) {
2034 			case CONNECTOR_PROPRIETARY_LEGACY:
2035 			case CONNECTOR_DVI_I_LEGACY:
2036 			case CONNECTOR_DVI_D_LEGACY:
2037 				if ((tmp >> 4) & 0x1)
2038 					hpd.hpd = RADEON_HPD_2;
2039 				else
2040 					hpd.hpd = RADEON_HPD_1;
2041 				break;
2042 			default:
2043 				hpd.hpd = RADEON_HPD_NONE;
2044 				break;
2045 			}
2046 
2047 			if (!radeon_apply_legacy_quirks(dev, i, &connector,
2048 							&ddc_i2c, &hpd))
2049 				continue;
2050 
2051 			switch (connector) {
2052 			case CONNECTOR_PROPRIETARY_LEGACY:
2053 				if ((tmp >> 4) & 0x1)
2054 					devices = ATOM_DEVICE_DFP2_SUPPORT;
2055 				else
2056 					devices = ATOM_DEVICE_DFP1_SUPPORT;
2057 				radeon_add_legacy_encoder(dev,
2058 							  radeon_get_encoder_id
2059 							  (dev, devices, 0),
2060 							  devices);
2061 				radeon_add_legacy_connector(dev, i, devices,
2062 							    legacy_connector_convert
2063 							    [connector],
2064 							    &ddc_i2c,
2065 							    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D,
2066 							    &hpd);
2067 				break;
2068 			case CONNECTOR_CRT_LEGACY:
2069 				if (tmp & 0x1) {
2070 					devices = ATOM_DEVICE_CRT2_SUPPORT;
2071 					radeon_add_legacy_encoder(dev,
2072 								  radeon_get_encoder_id
2073 								  (dev,
2074 								   ATOM_DEVICE_CRT2_SUPPORT,
2075 								   2),
2076 								  ATOM_DEVICE_CRT2_SUPPORT);
2077 				} else {
2078 					devices = ATOM_DEVICE_CRT1_SUPPORT;
2079 					radeon_add_legacy_encoder(dev,
2080 								  radeon_get_encoder_id
2081 								  (dev,
2082 								   ATOM_DEVICE_CRT1_SUPPORT,
2083 								   1),
2084 								  ATOM_DEVICE_CRT1_SUPPORT);
2085 				}
2086 				radeon_add_legacy_connector(dev,
2087 							    i,
2088 							    devices,
2089 							    legacy_connector_convert
2090 							    [connector],
2091 							    &ddc_i2c,
2092 							    CONNECTOR_OBJECT_ID_VGA,
2093 							    &hpd);
2094 				break;
2095 			case CONNECTOR_DVI_I_LEGACY:
2096 				devices = 0;
2097 				if (tmp & 0x1) {
2098 					devices |= ATOM_DEVICE_CRT2_SUPPORT;
2099 					radeon_add_legacy_encoder(dev,
2100 								  radeon_get_encoder_id
2101 								  (dev,
2102 								   ATOM_DEVICE_CRT2_SUPPORT,
2103 								   2),
2104 								  ATOM_DEVICE_CRT2_SUPPORT);
2105 				} else {
2106 					devices |= ATOM_DEVICE_CRT1_SUPPORT;
2107 					radeon_add_legacy_encoder(dev,
2108 								  radeon_get_encoder_id
2109 								  (dev,
2110 								   ATOM_DEVICE_CRT1_SUPPORT,
2111 								   1),
2112 								  ATOM_DEVICE_CRT1_SUPPORT);
2113 				}
2114 				if ((tmp >> 4) & 0x1) {
2115 					devices |= ATOM_DEVICE_DFP2_SUPPORT;
2116 					radeon_add_legacy_encoder(dev,
2117 								  radeon_get_encoder_id
2118 								  (dev,
2119 								   ATOM_DEVICE_DFP2_SUPPORT,
2120 								   0),
2121 								  ATOM_DEVICE_DFP2_SUPPORT);
2122 					connector_object_id = combios_check_dl_dvi(dev, 0);
2123 				} else {
2124 					devices |= ATOM_DEVICE_DFP1_SUPPORT;
2125 					radeon_add_legacy_encoder(dev,
2126 								  radeon_get_encoder_id
2127 								  (dev,
2128 								   ATOM_DEVICE_DFP1_SUPPORT,
2129 								   0),
2130 								  ATOM_DEVICE_DFP1_SUPPORT);
2131 					connector_object_id = CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I;
2132 				}
2133 				radeon_add_legacy_connector(dev,
2134 							    i,
2135 							    devices,
2136 							    legacy_connector_convert
2137 							    [connector],
2138 							    &ddc_i2c,
2139 							    connector_object_id,
2140 							    &hpd);
2141 				break;
2142 			case CONNECTOR_DVI_D_LEGACY:
2143 				if ((tmp >> 4) & 0x1) {
2144 					devices = ATOM_DEVICE_DFP2_SUPPORT;
2145 					connector_object_id = combios_check_dl_dvi(dev, 1);
2146 				} else {
2147 					devices = ATOM_DEVICE_DFP1_SUPPORT;
2148 					connector_object_id = CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I;
2149 				}
2150 				radeon_add_legacy_encoder(dev,
2151 							  radeon_get_encoder_id
2152 							  (dev, devices, 0),
2153 							  devices);
2154 				radeon_add_legacy_connector(dev, i, devices,
2155 							    legacy_connector_convert
2156 							    [connector],
2157 							    &ddc_i2c,
2158 							    connector_object_id,
2159 							    &hpd);
2160 				break;
2161 			case CONNECTOR_CTV_LEGACY:
2162 			case CONNECTOR_STV_LEGACY:
2163 				radeon_add_legacy_encoder(dev,
2164 							  radeon_get_encoder_id
2165 							  (dev,
2166 							   ATOM_DEVICE_TV1_SUPPORT,
2167 							   2),
2168 							  ATOM_DEVICE_TV1_SUPPORT);
2169 				radeon_add_legacy_connector(dev, i,
2170 							    ATOM_DEVICE_TV1_SUPPORT,
2171 							    legacy_connector_convert
2172 							    [connector],
2173 							    &ddc_i2c,
2174 							    CONNECTOR_OBJECT_ID_SVIDEO,
2175 							    &hpd);
2176 				break;
2177 			default:
2178 				DRM_ERROR("Unknown connector type: %d\n",
2179 					  connector);
2180 				continue;
2181 			}
2182 
2183 		}
2184 	} else {
2185 		uint16_t tmds_info =
2186 		    combios_get_table_offset(dev, COMBIOS_DFP_INFO_TABLE);
2187 		if (tmds_info) {
2188 			DRM_DEBUG("Found DFP table, assuming DVI connector\n");
2189 
2190 			radeon_add_legacy_encoder(dev,
2191 						  radeon_get_encoder_id(dev,
2192 									ATOM_DEVICE_CRT1_SUPPORT,
2193 									1),
2194 						  ATOM_DEVICE_CRT1_SUPPORT);
2195 			radeon_add_legacy_encoder(dev,
2196 						  radeon_get_encoder_id(dev,
2197 									ATOM_DEVICE_DFP1_SUPPORT,
2198 									0),
2199 						  ATOM_DEVICE_DFP1_SUPPORT);
2200 
2201 			ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_DVI_DDC);
2202 			hpd.hpd = RADEON_HPD_1;
2203 			radeon_add_legacy_connector(dev,
2204 						    0,
2205 						    ATOM_DEVICE_CRT1_SUPPORT |
2206 						    ATOM_DEVICE_DFP1_SUPPORT,
2207 						    DRM_MODE_CONNECTOR_DVII,
2208 						    &ddc_i2c,
2209 						    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
2210 						    &hpd);
2211 		} else {
2212 			uint16_t crt_info =
2213 				combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE);
2214 			DRM_DEBUG("Found CRT table, assuming VGA connector\n");
2215 			if (crt_info) {
2216 				radeon_add_legacy_encoder(dev,
2217 							  radeon_get_encoder_id(dev,
2218 										ATOM_DEVICE_CRT1_SUPPORT,
2219 										1),
2220 							  ATOM_DEVICE_CRT1_SUPPORT);
2221 				ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC);
2222 				hpd.hpd = RADEON_HPD_NONE;
2223 				radeon_add_legacy_connector(dev,
2224 							    0,
2225 							    ATOM_DEVICE_CRT1_SUPPORT,
2226 							    DRM_MODE_CONNECTOR_VGA,
2227 							    &ddc_i2c,
2228 							    CONNECTOR_OBJECT_ID_VGA,
2229 							    &hpd);
2230 			} else {
2231 				DRM_DEBUG("No connector info found\n");
2232 				return false;
2233 			}
2234 		}
2235 	}
2236 
2237 	if (rdev->flags & RADEON_IS_MOBILITY || rdev->flags & RADEON_IS_IGP) {
2238 		uint16_t lcd_info =
2239 		    combios_get_table_offset(dev, COMBIOS_LCD_INFO_TABLE);
2240 		if (lcd_info) {
2241 			uint16_t lcd_ddc_info =
2242 			    combios_get_table_offset(dev,
2243 						     COMBIOS_LCD_DDC_INFO_TABLE);
2244 
2245 			radeon_add_legacy_encoder(dev,
2246 						  radeon_get_encoder_id(dev,
2247 									ATOM_DEVICE_LCD1_SUPPORT,
2248 									0),
2249 						  ATOM_DEVICE_LCD1_SUPPORT);
2250 
2251 			if (lcd_ddc_info) {
2252 				ddc_type = RBIOS8(lcd_ddc_info + 2);
2253 				switch (ddc_type) {
2254 				case DDC_MONID:
2255 					ddc_i2c =
2256 					    combios_setup_i2c_bus
2257 						(rdev, RADEON_GPIO_MONID);
2258 					break;
2259 				case DDC_DVI:
2260 					ddc_i2c =
2261 					    combios_setup_i2c_bus
2262 						(rdev, RADEON_GPIO_DVI_DDC);
2263 					break;
2264 				case DDC_VGA:
2265 					ddc_i2c =
2266 					    combios_setup_i2c_bus
2267 						(rdev, RADEON_GPIO_VGA_DDC);
2268 					break;
2269 				case DDC_CRT2:
2270 					ddc_i2c =
2271 					    combios_setup_i2c_bus
2272 						(rdev, RADEON_GPIO_CRT2_DDC);
2273 					break;
2274 				case DDC_LCD:
2275 					ddc_i2c =
2276 					    combios_setup_i2c_bus
2277 						(rdev, RADEON_GPIOPAD_MASK);
2278 					ddc_i2c.mask_clk_mask =
2279 					    RBIOS32(lcd_ddc_info + 3);
2280 					ddc_i2c.mask_data_mask =
2281 					    RBIOS32(lcd_ddc_info + 7);
2282 					ddc_i2c.a_clk_mask =
2283 					    RBIOS32(lcd_ddc_info + 3);
2284 					ddc_i2c.a_data_mask =
2285 					    RBIOS32(lcd_ddc_info + 7);
2286 					ddc_i2c.en_clk_mask =
2287 					    RBIOS32(lcd_ddc_info + 3);
2288 					ddc_i2c.en_data_mask =
2289 					    RBIOS32(lcd_ddc_info + 7);
2290 					ddc_i2c.y_clk_mask =
2291 					    RBIOS32(lcd_ddc_info + 3);
2292 					ddc_i2c.y_data_mask =
2293 					    RBIOS32(lcd_ddc_info + 7);
2294 					break;
2295 				case DDC_GPIO:
2296 					ddc_i2c =
2297 					    combios_setup_i2c_bus
2298 						(rdev, RADEON_MDGPIO_MASK);
2299 					ddc_i2c.mask_clk_mask =
2300 					    RBIOS32(lcd_ddc_info + 3);
2301 					ddc_i2c.mask_data_mask =
2302 					    RBIOS32(lcd_ddc_info + 7);
2303 					ddc_i2c.a_clk_mask =
2304 					    RBIOS32(lcd_ddc_info + 3);
2305 					ddc_i2c.a_data_mask =
2306 					    RBIOS32(lcd_ddc_info + 7);
2307 					ddc_i2c.en_clk_mask =
2308 					    RBIOS32(lcd_ddc_info + 3);
2309 					ddc_i2c.en_data_mask =
2310 					    RBIOS32(lcd_ddc_info + 7);
2311 					ddc_i2c.y_clk_mask =
2312 					    RBIOS32(lcd_ddc_info + 3);
2313 					ddc_i2c.y_data_mask =
2314 					    RBIOS32(lcd_ddc_info + 7);
2315 					break;
2316 				default:
2317 					ddc_i2c.valid = false;
2318 					break;
2319 				}
2320 				DRM_DEBUG("LCD DDC Info Table found!\n");
2321 			} else
2322 				ddc_i2c.valid = false;
2323 
2324 			hpd.hpd = RADEON_HPD_NONE;
2325 			radeon_add_legacy_connector(dev,
2326 						    5,
2327 						    ATOM_DEVICE_LCD1_SUPPORT,
2328 						    DRM_MODE_CONNECTOR_LVDS,
2329 						    &ddc_i2c,
2330 						    CONNECTOR_OBJECT_ID_LVDS,
2331 						    &hpd);
2332 		}
2333 	}
2334 
2335 	/* check TV table */
2336 	if (rdev->family != CHIP_R100 && rdev->family != CHIP_R200) {
2337 		uint32_t tv_info =
2338 		    combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE);
2339 		if (tv_info) {
2340 			if (RBIOS8(tv_info + 6) == 'T') {
2341 				if (radeon_apply_legacy_tv_quirks(dev)) {
2342 					hpd.hpd = RADEON_HPD_NONE;
2343 					ddc_i2c.valid = false;
2344 					radeon_add_legacy_encoder(dev,
2345 								  radeon_get_encoder_id
2346 								  (dev,
2347 								   ATOM_DEVICE_TV1_SUPPORT,
2348 								   2),
2349 								  ATOM_DEVICE_TV1_SUPPORT);
2350 					radeon_add_legacy_connector(dev, 6,
2351 								    ATOM_DEVICE_TV1_SUPPORT,
2352 								    DRM_MODE_CONNECTOR_SVIDEO,
2353 								    &ddc_i2c,
2354 								    CONNECTOR_OBJECT_ID_SVIDEO,
2355 								    &hpd);
2356 				}
2357 			}
2358 		}
2359 	}
2360 
2361 	radeon_link_encoder_connector(dev);
2362 
2363 	return true;
2364 }
2365 
2366 void radeon_combios_get_power_modes(struct radeon_device *rdev)
2367 {
2368 	struct drm_device *dev = rdev->ddev;
2369 	u16 offset, misc, misc2 = 0;
2370 	u8 rev, blocks, tmp;
2371 	int state_index = 0;
2372 
2373 	rdev->pm.default_power_state_index = -1;
2374 
2375 	if (rdev->flags & RADEON_IS_MOBILITY) {
2376 		offset = combios_get_table_offset(dev, COMBIOS_POWERPLAY_INFO_TABLE);
2377 		if (offset) {
2378 			rev = RBIOS8(offset);
2379 			blocks = RBIOS8(offset + 0x2);
2380 			/* power mode 0 tends to be the only valid one */
2381 			rdev->pm.power_state[state_index].num_clock_modes = 1;
2382 			rdev->pm.power_state[state_index].clock_info[0].mclk = RBIOS32(offset + 0x5 + 0x2);
2383 			rdev->pm.power_state[state_index].clock_info[0].sclk = RBIOS32(offset + 0x5 + 0x6);
2384 			if ((rdev->pm.power_state[state_index].clock_info[0].mclk == 0) ||
2385 			    (rdev->pm.power_state[state_index].clock_info[0].sclk == 0))
2386 				goto default_mode;
2387 			rdev->pm.power_state[state_index].type =
2388 				POWER_STATE_TYPE_BATTERY;
2389 			misc = RBIOS16(offset + 0x5 + 0x0);
2390 			if (rev > 4)
2391 				misc2 = RBIOS16(offset + 0x5 + 0xe);
2392 			rdev->pm.power_state[state_index].misc = misc;
2393 			rdev->pm.power_state[state_index].misc2 = misc2;
2394 			if (misc & 0x4) {
2395 				rdev->pm.power_state[state_index].clock_info[0].voltage.type = VOLTAGE_GPIO;
2396 				if (misc & 0x8)
2397 					rdev->pm.power_state[state_index].clock_info[0].voltage.active_high =
2398 						true;
2399 				else
2400 					rdev->pm.power_state[state_index].clock_info[0].voltage.active_high =
2401 						false;
2402 				rdev->pm.power_state[state_index].clock_info[0].voltage.gpio.valid = true;
2403 				if (rev < 6) {
2404 					rdev->pm.power_state[state_index].clock_info[0].voltage.gpio.reg =
2405 						RBIOS16(offset + 0x5 + 0xb) * 4;
2406 					tmp = RBIOS8(offset + 0x5 + 0xd);
2407 					rdev->pm.power_state[state_index].clock_info[0].voltage.gpio.mask = (1 << tmp);
2408 				} else {
2409 					u8 entries = RBIOS8(offset + 0x5 + 0xb);
2410 					u16 voltage_table_offset = RBIOS16(offset + 0x5 + 0xc);
2411 					if (entries && voltage_table_offset) {
2412 						rdev->pm.power_state[state_index].clock_info[0].voltage.gpio.reg =
2413 							RBIOS16(voltage_table_offset) * 4;
2414 						tmp = RBIOS8(voltage_table_offset + 0x2);
2415 						rdev->pm.power_state[state_index].clock_info[0].voltage.gpio.mask = (1 << tmp);
2416 					} else
2417 						rdev->pm.power_state[state_index].clock_info[0].voltage.gpio.valid = false;
2418 				}
2419 				switch ((misc2 & 0x700) >> 8) {
2420 				case 0:
2421 				default:
2422 					rdev->pm.power_state[state_index].clock_info[0].voltage.delay = 0;
2423 					break;
2424 				case 1:
2425 					rdev->pm.power_state[state_index].clock_info[0].voltage.delay = 33;
2426 					break;
2427 				case 2:
2428 					rdev->pm.power_state[state_index].clock_info[0].voltage.delay = 66;
2429 					break;
2430 				case 3:
2431 					rdev->pm.power_state[state_index].clock_info[0].voltage.delay = 99;
2432 					break;
2433 				case 4:
2434 					rdev->pm.power_state[state_index].clock_info[0].voltage.delay = 132;
2435 					break;
2436 				}
2437 			} else
2438 				rdev->pm.power_state[state_index].clock_info[0].voltage.type = VOLTAGE_NONE;
2439 			if (rev > 6)
2440 				rdev->pm.power_state[state_index].pcie_lanes =
2441 					RBIOS8(offset + 0x5 + 0x10);
2442 			rdev->pm.power_state[state_index].flags = RADEON_PM_STATE_SINGLE_DISPLAY_ONLY;
2443 			state_index++;
2444 		} else {
2445 			/* XXX figure out some good default low power mode for mobility cards w/out power tables */
2446 		}
2447 	} else {
2448 		/* XXX figure out some good default low power mode for desktop cards */
2449 	}
2450 
2451 default_mode:
2452 	/* add the default mode */
2453 	rdev->pm.power_state[state_index].type =
2454 		POWER_STATE_TYPE_DEFAULT;
2455 	rdev->pm.power_state[state_index].num_clock_modes = 1;
2456 	rdev->pm.power_state[state_index].clock_info[0].mclk = rdev->clock.default_mclk;
2457 	rdev->pm.power_state[state_index].clock_info[0].sclk = rdev->clock.default_sclk;
2458 	rdev->pm.power_state[state_index].default_clock_mode = &rdev->pm.power_state[state_index].clock_info[0];
2459 	if ((state_index > 0) &&
2460 	    (rdev->pm.power_state[0].clock_info[0].voltage.type == VOLTAGE_GPIO))
2461 		rdev->pm.power_state[state_index].clock_info[0].voltage =
2462 			rdev->pm.power_state[0].clock_info[0].voltage;
2463 	else
2464 		rdev->pm.power_state[state_index].clock_info[0].voltage.type = VOLTAGE_NONE;
2465 	rdev->pm.power_state[state_index].pcie_lanes = 16;
2466 	rdev->pm.power_state[state_index].flags = 0;
2467 	rdev->pm.default_power_state_index = state_index;
2468 	rdev->pm.num_power_states = state_index + 1;
2469 
2470 	rdev->pm.current_power_state_index = rdev->pm.default_power_state_index;
2471 	rdev->pm.current_clock_mode_index = 0;
2472 }
2473 
2474 void radeon_external_tmds_setup(struct drm_encoder *encoder)
2475 {
2476 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
2477 	struct radeon_encoder_ext_tmds *tmds = radeon_encoder->enc_priv;
2478 
2479 	if (!tmds)
2480 		return;
2481 
2482 	switch (tmds->dvo_chip) {
2483 	case DVO_SIL164:
2484 		/* sil 164 */
2485 		radeon_i2c_put_byte(tmds->i2c_bus,
2486 				    tmds->slave_addr,
2487 				    0x08, 0x30);
2488 		radeon_i2c_put_byte(tmds->i2c_bus,
2489 				       tmds->slave_addr,
2490 				       0x09, 0x00);
2491 		radeon_i2c_put_byte(tmds->i2c_bus,
2492 				    tmds->slave_addr,
2493 				    0x0a, 0x90);
2494 		radeon_i2c_put_byte(tmds->i2c_bus,
2495 				    tmds->slave_addr,
2496 				    0x0c, 0x89);
2497 		radeon_i2c_put_byte(tmds->i2c_bus,
2498 				       tmds->slave_addr,
2499 				       0x08, 0x3b);
2500 		break;
2501 	case DVO_SIL1178:
2502 		/* sil 1178 - untested */
2503 		/*
2504 		 * 0x0f, 0x44
2505 		 * 0x0f, 0x4c
2506 		 * 0x0e, 0x01
2507 		 * 0x0a, 0x80
2508 		 * 0x09, 0x30
2509 		 * 0x0c, 0xc9
2510 		 * 0x0d, 0x70
2511 		 * 0x08, 0x32
2512 		 * 0x08, 0x33
2513 		 */
2514 		break;
2515 	default:
2516 		break;
2517 	}
2518 
2519 }
2520 
2521 bool radeon_combios_external_tmds_setup(struct drm_encoder *encoder)
2522 {
2523 	struct drm_device *dev = encoder->dev;
2524 	struct radeon_device *rdev = dev->dev_private;
2525 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
2526 	uint16_t offset;
2527 	uint8_t blocks, slave_addr, rev;
2528 	uint32_t index, id;
2529 	uint32_t reg, val, and_mask, or_mask;
2530 	struct radeon_encoder_ext_tmds *tmds = radeon_encoder->enc_priv;
2531 
2532 	if (!tmds)
2533 		return false;
2534 
2535 	if (rdev->flags & RADEON_IS_IGP) {
2536 		offset = combios_get_table_offset(dev, COMBIOS_TMDS_POWER_ON_TABLE);
2537 		rev = RBIOS8(offset);
2538 		if (offset) {
2539 			rev = RBIOS8(offset);
2540 			if (rev > 1) {
2541 				blocks = RBIOS8(offset + 3);
2542 				index = offset + 4;
2543 				while (blocks > 0) {
2544 					id = RBIOS16(index);
2545 					index += 2;
2546 					switch (id >> 13) {
2547 					case 0:
2548 						reg = (id & 0x1fff) * 4;
2549 						val = RBIOS32(index);
2550 						index += 4;
2551 						WREG32(reg, val);
2552 						break;
2553 					case 2:
2554 						reg = (id & 0x1fff) * 4;
2555 						and_mask = RBIOS32(index);
2556 						index += 4;
2557 						or_mask = RBIOS32(index);
2558 						index += 4;
2559 						val = RREG32(reg);
2560 						val = (val & and_mask) | or_mask;
2561 						WREG32(reg, val);
2562 						break;
2563 					case 3:
2564 						val = RBIOS16(index);
2565 						index += 2;
2566 						udelay(val);
2567 						break;
2568 					case 4:
2569 						val = RBIOS16(index);
2570 						index += 2;
2571 						udelay(val * 1000);
2572 						break;
2573 					case 6:
2574 						slave_addr = id & 0xff;
2575 						slave_addr >>= 1; /* 7 bit addressing */
2576 						index++;
2577 						reg = RBIOS8(index);
2578 						index++;
2579 						val = RBIOS8(index);
2580 						index++;
2581 						radeon_i2c_put_byte(tmds->i2c_bus,
2582 								    slave_addr,
2583 								    reg, val);
2584 						break;
2585 					default:
2586 						DRM_ERROR("Unknown id %d\n", id >> 13);
2587 						break;
2588 					}
2589 					blocks--;
2590 				}
2591 				return true;
2592 			}
2593 		}
2594 	} else {
2595 		offset = combios_get_table_offset(dev, COMBIOS_EXT_TMDS_INFO_TABLE);
2596 		if (offset) {
2597 			index = offset + 10;
2598 			id = RBIOS16(index);
2599 			while (id != 0xffff) {
2600 				index += 2;
2601 				switch (id >> 13) {
2602 				case 0:
2603 					reg = (id & 0x1fff) * 4;
2604 					val = RBIOS32(index);
2605 					WREG32(reg, val);
2606 					break;
2607 				case 2:
2608 					reg = (id & 0x1fff) * 4;
2609 					and_mask = RBIOS32(index);
2610 					index += 4;
2611 					or_mask = RBIOS32(index);
2612 					index += 4;
2613 					val = RREG32(reg);
2614 					val = (val & and_mask) | or_mask;
2615 					WREG32(reg, val);
2616 					break;
2617 				case 4:
2618 					val = RBIOS16(index);
2619 					index += 2;
2620 					udelay(val);
2621 					break;
2622 				case 5:
2623 					reg = id & 0x1fff;
2624 					and_mask = RBIOS32(index);
2625 					index += 4;
2626 					or_mask = RBIOS32(index);
2627 					index += 4;
2628 					val = RREG32_PLL(reg);
2629 					val = (val & and_mask) | or_mask;
2630 					WREG32_PLL(reg, val);
2631 					break;
2632 				case 6:
2633 					reg = id & 0x1fff;
2634 					val = RBIOS8(index);
2635 					index += 1;
2636 					radeon_i2c_put_byte(tmds->i2c_bus,
2637 							    tmds->slave_addr,
2638 							    reg, val);
2639 					break;
2640 				default:
2641 					DRM_ERROR("Unknown id %d\n", id >> 13);
2642 					break;
2643 				}
2644 				id = RBIOS16(index);
2645 			}
2646 			return true;
2647 		}
2648 	}
2649 	return false;
2650 }
2651 
2652 static void combios_parse_mmio_table(struct drm_device *dev, uint16_t offset)
2653 {
2654 	struct radeon_device *rdev = dev->dev_private;
2655 
2656 	if (offset) {
2657 		while (RBIOS16(offset)) {
2658 			uint16_t cmd = ((RBIOS16(offset) & 0xe000) >> 13);
2659 			uint32_t addr = (RBIOS16(offset) & 0x1fff);
2660 			uint32_t val, and_mask, or_mask;
2661 			uint32_t tmp;
2662 
2663 			offset += 2;
2664 			switch (cmd) {
2665 			case 0:
2666 				val = RBIOS32(offset);
2667 				offset += 4;
2668 				WREG32(addr, val);
2669 				break;
2670 			case 1:
2671 				val = RBIOS32(offset);
2672 				offset += 4;
2673 				WREG32(addr, val);
2674 				break;
2675 			case 2:
2676 				and_mask = RBIOS32(offset);
2677 				offset += 4;
2678 				or_mask = RBIOS32(offset);
2679 				offset += 4;
2680 				tmp = RREG32(addr);
2681 				tmp &= and_mask;
2682 				tmp |= or_mask;
2683 				WREG32(addr, tmp);
2684 				break;
2685 			case 3:
2686 				and_mask = RBIOS32(offset);
2687 				offset += 4;
2688 				or_mask = RBIOS32(offset);
2689 				offset += 4;
2690 				tmp = RREG32(addr);
2691 				tmp &= and_mask;
2692 				tmp |= or_mask;
2693 				WREG32(addr, tmp);
2694 				break;
2695 			case 4:
2696 				val = RBIOS16(offset);
2697 				offset += 2;
2698 				udelay(val);
2699 				break;
2700 			case 5:
2701 				val = RBIOS16(offset);
2702 				offset += 2;
2703 				switch (addr) {
2704 				case 8:
2705 					while (val--) {
2706 						if (!
2707 						    (RREG32_PLL
2708 						     (RADEON_CLK_PWRMGT_CNTL) &
2709 						     RADEON_MC_BUSY))
2710 							break;
2711 					}
2712 					break;
2713 				case 9:
2714 					while (val--) {
2715 						if ((RREG32(RADEON_MC_STATUS) &
2716 						     RADEON_MC_IDLE))
2717 							break;
2718 					}
2719 					break;
2720 				default:
2721 					break;
2722 				}
2723 				break;
2724 			default:
2725 				break;
2726 			}
2727 		}
2728 	}
2729 }
2730 
2731 static void combios_parse_pll_table(struct drm_device *dev, uint16_t offset)
2732 {
2733 	struct radeon_device *rdev = dev->dev_private;
2734 
2735 	if (offset) {
2736 		while (RBIOS8(offset)) {
2737 			uint8_t cmd = ((RBIOS8(offset) & 0xc0) >> 6);
2738 			uint8_t addr = (RBIOS8(offset) & 0x3f);
2739 			uint32_t val, shift, tmp;
2740 			uint32_t and_mask, or_mask;
2741 
2742 			offset++;
2743 			switch (cmd) {
2744 			case 0:
2745 				val = RBIOS32(offset);
2746 				offset += 4;
2747 				WREG32_PLL(addr, val);
2748 				break;
2749 			case 1:
2750 				shift = RBIOS8(offset) * 8;
2751 				offset++;
2752 				and_mask = RBIOS8(offset) << shift;
2753 				and_mask |= ~(0xff << shift);
2754 				offset++;
2755 				or_mask = RBIOS8(offset) << shift;
2756 				offset++;
2757 				tmp = RREG32_PLL(addr);
2758 				tmp &= and_mask;
2759 				tmp |= or_mask;
2760 				WREG32_PLL(addr, tmp);
2761 				break;
2762 			case 2:
2763 			case 3:
2764 				tmp = 1000;
2765 				switch (addr) {
2766 				case 1:
2767 					udelay(150);
2768 					break;
2769 				case 2:
2770 					udelay(1000);
2771 					break;
2772 				case 3:
2773 					while (tmp--) {
2774 						if (!
2775 						    (RREG32_PLL
2776 						     (RADEON_CLK_PWRMGT_CNTL) &
2777 						     RADEON_MC_BUSY))
2778 							break;
2779 					}
2780 					break;
2781 				case 4:
2782 					while (tmp--) {
2783 						if (RREG32_PLL
2784 						    (RADEON_CLK_PWRMGT_CNTL) &
2785 						    RADEON_DLL_READY)
2786 							break;
2787 					}
2788 					break;
2789 				case 5:
2790 					tmp =
2791 					    RREG32_PLL(RADEON_CLK_PWRMGT_CNTL);
2792 					if (tmp & RADEON_CG_NO1_DEBUG_0) {
2793 #if 0
2794 						uint32_t mclk_cntl =
2795 						    RREG32_PLL
2796 						    (RADEON_MCLK_CNTL);
2797 						mclk_cntl &= 0xffff0000;
2798 						/*mclk_cntl |= 0x00001111;*//* ??? */
2799 						WREG32_PLL(RADEON_MCLK_CNTL,
2800 							   mclk_cntl);
2801 						udelay(10000);
2802 #endif
2803 						WREG32_PLL
2804 						    (RADEON_CLK_PWRMGT_CNTL,
2805 						     tmp &
2806 						     ~RADEON_CG_NO1_DEBUG_0);
2807 						udelay(10000);
2808 					}
2809 					break;
2810 				default:
2811 					break;
2812 				}
2813 				break;
2814 			default:
2815 				break;
2816 			}
2817 		}
2818 	}
2819 }
2820 
2821 static void combios_parse_ram_reset_table(struct drm_device *dev,
2822 					  uint16_t offset)
2823 {
2824 	struct radeon_device *rdev = dev->dev_private;
2825 	uint32_t tmp;
2826 
2827 	if (offset) {
2828 		uint8_t val = RBIOS8(offset);
2829 		while (val != 0xff) {
2830 			offset++;
2831 
2832 			if (val == 0x0f) {
2833 				uint32_t channel_complete_mask;
2834 
2835 				if (ASIC_IS_R300(rdev))
2836 					channel_complete_mask =
2837 					    R300_MEM_PWRUP_COMPLETE;
2838 				else
2839 					channel_complete_mask =
2840 					    RADEON_MEM_PWRUP_COMPLETE;
2841 				tmp = 20000;
2842 				while (tmp--) {
2843 					if ((RREG32(RADEON_MEM_STR_CNTL) &
2844 					     channel_complete_mask) ==
2845 					    channel_complete_mask)
2846 						break;
2847 				}
2848 			} else {
2849 				uint32_t or_mask = RBIOS16(offset);
2850 				offset += 2;
2851 
2852 				tmp = RREG32(RADEON_MEM_SDRAM_MODE_REG);
2853 				tmp &= RADEON_SDRAM_MODE_MASK;
2854 				tmp |= or_mask;
2855 				WREG32(RADEON_MEM_SDRAM_MODE_REG, tmp);
2856 
2857 				or_mask = val << 24;
2858 				tmp = RREG32(RADEON_MEM_SDRAM_MODE_REG);
2859 				tmp &= RADEON_B3MEM_RESET_MASK;
2860 				tmp |= or_mask;
2861 				WREG32(RADEON_MEM_SDRAM_MODE_REG, tmp);
2862 			}
2863 			val = RBIOS8(offset);
2864 		}
2865 	}
2866 }
2867 
2868 static uint32_t combios_detect_ram(struct drm_device *dev, int ram,
2869 				   int mem_addr_mapping)
2870 {
2871 	struct radeon_device *rdev = dev->dev_private;
2872 	uint32_t mem_cntl;
2873 	uint32_t mem_size;
2874 	uint32_t addr = 0;
2875 
2876 	mem_cntl = RREG32(RADEON_MEM_CNTL);
2877 	if (mem_cntl & RV100_HALF_MODE)
2878 		ram /= 2;
2879 	mem_size = ram;
2880 	mem_cntl &= ~(0xff << 8);
2881 	mem_cntl |= (mem_addr_mapping & 0xff) << 8;
2882 	WREG32(RADEON_MEM_CNTL, mem_cntl);
2883 	RREG32(RADEON_MEM_CNTL);
2884 
2885 	/* sdram reset ? */
2886 
2887 	/* something like this????  */
2888 	while (ram--) {
2889 		addr = ram * 1024 * 1024;
2890 		/* write to each page */
2891 		WREG32(RADEON_MM_INDEX, (addr) | RADEON_MM_APER);
2892 		WREG32(RADEON_MM_DATA, 0xdeadbeef);
2893 		/* read back and verify */
2894 		WREG32(RADEON_MM_INDEX, (addr) | RADEON_MM_APER);
2895 		if (RREG32(RADEON_MM_DATA) != 0xdeadbeef)
2896 			return 0;
2897 	}
2898 
2899 	return mem_size;
2900 }
2901 
2902 static void combios_write_ram_size(struct drm_device *dev)
2903 {
2904 	struct radeon_device *rdev = dev->dev_private;
2905 	uint8_t rev;
2906 	uint16_t offset;
2907 	uint32_t mem_size = 0;
2908 	uint32_t mem_cntl = 0;
2909 
2910 	/* should do something smarter here I guess... */
2911 	if (rdev->flags & RADEON_IS_IGP)
2912 		return;
2913 
2914 	/* first check detected mem table */
2915 	offset = combios_get_table_offset(dev, COMBIOS_DETECTED_MEM_TABLE);
2916 	if (offset) {
2917 		rev = RBIOS8(offset);
2918 		if (rev < 3) {
2919 			mem_cntl = RBIOS32(offset + 1);
2920 			mem_size = RBIOS16(offset + 5);
2921 			if (((rdev->flags & RADEON_FAMILY_MASK) < CHIP_R200) &&
2922 			    ((dev->pdev->device != 0x515e)
2923 			     && (dev->pdev->device != 0x5969)))
2924 				WREG32(RADEON_MEM_CNTL, mem_cntl);
2925 		}
2926 	}
2927 
2928 	if (!mem_size) {
2929 		offset =
2930 		    combios_get_table_offset(dev, COMBIOS_MEM_CONFIG_TABLE);
2931 		if (offset) {
2932 			rev = RBIOS8(offset - 1);
2933 			if (rev < 1) {
2934 				if (((rdev->flags & RADEON_FAMILY_MASK) <
2935 				     CHIP_R200)
2936 				    && ((dev->pdev->device != 0x515e)
2937 					&& (dev->pdev->device != 0x5969))) {
2938 					int ram = 0;
2939 					int mem_addr_mapping = 0;
2940 
2941 					while (RBIOS8(offset)) {
2942 						ram = RBIOS8(offset);
2943 						mem_addr_mapping =
2944 						    RBIOS8(offset + 1);
2945 						if (mem_addr_mapping != 0x25)
2946 							ram *= 2;
2947 						mem_size =
2948 						    combios_detect_ram(dev, ram,
2949 								       mem_addr_mapping);
2950 						if (mem_size)
2951 							break;
2952 						offset += 2;
2953 					}
2954 				} else
2955 					mem_size = RBIOS8(offset);
2956 			} else {
2957 				mem_size = RBIOS8(offset);
2958 				mem_size *= 2;	/* convert to MB */
2959 			}
2960 		}
2961 	}
2962 
2963 	mem_size *= (1024 * 1024);	/* convert to bytes */
2964 	WREG32(RADEON_CONFIG_MEMSIZE, mem_size);
2965 }
2966 
2967 void radeon_combios_dyn_clk_setup(struct drm_device *dev, int enable)
2968 {
2969 	uint16_t dyn_clk_info =
2970 	    combios_get_table_offset(dev, COMBIOS_DYN_CLK_1_TABLE);
2971 
2972 	if (dyn_clk_info)
2973 		combios_parse_pll_table(dev, dyn_clk_info);
2974 }
2975 
2976 void radeon_combios_asic_init(struct drm_device *dev)
2977 {
2978 	struct radeon_device *rdev = dev->dev_private;
2979 	uint16_t table;
2980 
2981 	/* port hardcoded mac stuff from radeonfb */
2982 	if (rdev->bios == NULL)
2983 		return;
2984 
2985 	/* ASIC INIT 1 */
2986 	table = combios_get_table_offset(dev, COMBIOS_ASIC_INIT_1_TABLE);
2987 	if (table)
2988 		combios_parse_mmio_table(dev, table);
2989 
2990 	/* PLL INIT */
2991 	table = combios_get_table_offset(dev, COMBIOS_PLL_INIT_TABLE);
2992 	if (table)
2993 		combios_parse_pll_table(dev, table);
2994 
2995 	/* ASIC INIT 2 */
2996 	table = combios_get_table_offset(dev, COMBIOS_ASIC_INIT_2_TABLE);
2997 	if (table)
2998 		combios_parse_mmio_table(dev, table);
2999 
3000 	if (!(rdev->flags & RADEON_IS_IGP)) {
3001 		/* ASIC INIT 4 */
3002 		table =
3003 		    combios_get_table_offset(dev, COMBIOS_ASIC_INIT_4_TABLE);
3004 		if (table)
3005 			combios_parse_mmio_table(dev, table);
3006 
3007 		/* RAM RESET */
3008 		table = combios_get_table_offset(dev, COMBIOS_RAM_RESET_TABLE);
3009 		if (table)
3010 			combios_parse_ram_reset_table(dev, table);
3011 
3012 		/* ASIC INIT 3 */
3013 		table =
3014 		    combios_get_table_offset(dev, COMBIOS_ASIC_INIT_3_TABLE);
3015 		if (table)
3016 			combios_parse_mmio_table(dev, table);
3017 
3018 		/* write CONFIG_MEMSIZE */
3019 		combios_write_ram_size(dev);
3020 	}
3021 
3022 	/* DYN CLK 1 */
3023 	table = combios_get_table_offset(dev, COMBIOS_DYN_CLK_1_TABLE);
3024 	if (table)
3025 		combios_parse_pll_table(dev, table);
3026 
3027 }
3028 
3029 void radeon_combios_initialize_bios_scratch_regs(struct drm_device *dev)
3030 {
3031 	struct radeon_device *rdev = dev->dev_private;
3032 	uint32_t bios_0_scratch, bios_6_scratch, bios_7_scratch;
3033 
3034 	bios_0_scratch = RREG32(RADEON_BIOS_0_SCRATCH);
3035 	bios_6_scratch = RREG32(RADEON_BIOS_6_SCRATCH);
3036 	bios_7_scratch = RREG32(RADEON_BIOS_7_SCRATCH);
3037 
3038 	/* let the bios control the backlight */
3039 	bios_0_scratch &= ~RADEON_DRIVER_BRIGHTNESS_EN;
3040 
3041 	/* tell the bios not to handle mode switching */
3042 	bios_6_scratch |= (RADEON_DISPLAY_SWITCHING_DIS |
3043 			   RADEON_ACC_MODE_CHANGE);
3044 
3045 	/* tell the bios a driver is loaded */
3046 	bios_7_scratch |= RADEON_DRV_LOADED;
3047 
3048 	WREG32(RADEON_BIOS_0_SCRATCH, bios_0_scratch);
3049 	WREG32(RADEON_BIOS_6_SCRATCH, bios_6_scratch);
3050 	WREG32(RADEON_BIOS_7_SCRATCH, bios_7_scratch);
3051 }
3052 
3053 void radeon_combios_output_lock(struct drm_encoder *encoder, bool lock)
3054 {
3055 	struct drm_device *dev = encoder->dev;
3056 	struct radeon_device *rdev = dev->dev_private;
3057 	uint32_t bios_6_scratch;
3058 
3059 	bios_6_scratch = RREG32(RADEON_BIOS_6_SCRATCH);
3060 
3061 	if (lock)
3062 		bios_6_scratch |= RADEON_DRIVER_CRITICAL;
3063 	else
3064 		bios_6_scratch &= ~RADEON_DRIVER_CRITICAL;
3065 
3066 	WREG32(RADEON_BIOS_6_SCRATCH, bios_6_scratch);
3067 }
3068 
3069 void
3070 radeon_combios_connected_scratch_regs(struct drm_connector *connector,
3071 				      struct drm_encoder *encoder,
3072 				      bool connected)
3073 {
3074 	struct drm_device *dev = connector->dev;
3075 	struct radeon_device *rdev = dev->dev_private;
3076 	struct radeon_connector *radeon_connector =
3077 	    to_radeon_connector(connector);
3078 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
3079 	uint32_t bios_4_scratch = RREG32(RADEON_BIOS_4_SCRATCH);
3080 	uint32_t bios_5_scratch = RREG32(RADEON_BIOS_5_SCRATCH);
3081 
3082 	if ((radeon_encoder->devices & ATOM_DEVICE_TV1_SUPPORT) &&
3083 	    (radeon_connector->devices & ATOM_DEVICE_TV1_SUPPORT)) {
3084 		if (connected) {
3085 			DRM_DEBUG("TV1 connected\n");
3086 			/* fix me */
3087 			bios_4_scratch |= RADEON_TV1_ATTACHED_SVIDEO;
3088 			/*save->bios_4_scratch |= RADEON_TV1_ATTACHED_COMP; */
3089 			bios_5_scratch |= RADEON_TV1_ON;
3090 			bios_5_scratch |= RADEON_ACC_REQ_TV1;
3091 		} else {
3092 			DRM_DEBUG("TV1 disconnected\n");
3093 			bios_4_scratch &= ~RADEON_TV1_ATTACHED_MASK;
3094 			bios_5_scratch &= ~RADEON_TV1_ON;
3095 			bios_5_scratch &= ~RADEON_ACC_REQ_TV1;
3096 		}
3097 	}
3098 	if ((radeon_encoder->devices & ATOM_DEVICE_LCD1_SUPPORT) &&
3099 	    (radeon_connector->devices & ATOM_DEVICE_LCD1_SUPPORT)) {
3100 		if (connected) {
3101 			DRM_DEBUG("LCD1 connected\n");
3102 			bios_4_scratch |= RADEON_LCD1_ATTACHED;
3103 			bios_5_scratch |= RADEON_LCD1_ON;
3104 			bios_5_scratch |= RADEON_ACC_REQ_LCD1;
3105 		} else {
3106 			DRM_DEBUG("LCD1 disconnected\n");
3107 			bios_4_scratch &= ~RADEON_LCD1_ATTACHED;
3108 			bios_5_scratch &= ~RADEON_LCD1_ON;
3109 			bios_5_scratch &= ~RADEON_ACC_REQ_LCD1;
3110 		}
3111 	}
3112 	if ((radeon_encoder->devices & ATOM_DEVICE_CRT1_SUPPORT) &&
3113 	    (radeon_connector->devices & ATOM_DEVICE_CRT1_SUPPORT)) {
3114 		if (connected) {
3115 			DRM_DEBUG("CRT1 connected\n");
3116 			bios_4_scratch |= RADEON_CRT1_ATTACHED_COLOR;
3117 			bios_5_scratch |= RADEON_CRT1_ON;
3118 			bios_5_scratch |= RADEON_ACC_REQ_CRT1;
3119 		} else {
3120 			DRM_DEBUG("CRT1 disconnected\n");
3121 			bios_4_scratch &= ~RADEON_CRT1_ATTACHED_MASK;
3122 			bios_5_scratch &= ~RADEON_CRT1_ON;
3123 			bios_5_scratch &= ~RADEON_ACC_REQ_CRT1;
3124 		}
3125 	}
3126 	if ((radeon_encoder->devices & ATOM_DEVICE_CRT2_SUPPORT) &&
3127 	    (radeon_connector->devices & ATOM_DEVICE_CRT2_SUPPORT)) {
3128 		if (connected) {
3129 			DRM_DEBUG("CRT2 connected\n");
3130 			bios_4_scratch |= RADEON_CRT2_ATTACHED_COLOR;
3131 			bios_5_scratch |= RADEON_CRT2_ON;
3132 			bios_5_scratch |= RADEON_ACC_REQ_CRT2;
3133 		} else {
3134 			DRM_DEBUG("CRT2 disconnected\n");
3135 			bios_4_scratch &= ~RADEON_CRT2_ATTACHED_MASK;
3136 			bios_5_scratch &= ~RADEON_CRT2_ON;
3137 			bios_5_scratch &= ~RADEON_ACC_REQ_CRT2;
3138 		}
3139 	}
3140 	if ((radeon_encoder->devices & ATOM_DEVICE_DFP1_SUPPORT) &&
3141 	    (radeon_connector->devices & ATOM_DEVICE_DFP1_SUPPORT)) {
3142 		if (connected) {
3143 			DRM_DEBUG("DFP1 connected\n");
3144 			bios_4_scratch |= RADEON_DFP1_ATTACHED;
3145 			bios_5_scratch |= RADEON_DFP1_ON;
3146 			bios_5_scratch |= RADEON_ACC_REQ_DFP1;
3147 		} else {
3148 			DRM_DEBUG("DFP1 disconnected\n");
3149 			bios_4_scratch &= ~RADEON_DFP1_ATTACHED;
3150 			bios_5_scratch &= ~RADEON_DFP1_ON;
3151 			bios_5_scratch &= ~RADEON_ACC_REQ_DFP1;
3152 		}
3153 	}
3154 	if ((radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT) &&
3155 	    (radeon_connector->devices & ATOM_DEVICE_DFP2_SUPPORT)) {
3156 		if (connected) {
3157 			DRM_DEBUG("DFP2 connected\n");
3158 			bios_4_scratch |= RADEON_DFP2_ATTACHED;
3159 			bios_5_scratch |= RADEON_DFP2_ON;
3160 			bios_5_scratch |= RADEON_ACC_REQ_DFP2;
3161 		} else {
3162 			DRM_DEBUG("DFP2 disconnected\n");
3163 			bios_4_scratch &= ~RADEON_DFP2_ATTACHED;
3164 			bios_5_scratch &= ~RADEON_DFP2_ON;
3165 			bios_5_scratch &= ~RADEON_ACC_REQ_DFP2;
3166 		}
3167 	}
3168 	WREG32(RADEON_BIOS_4_SCRATCH, bios_4_scratch);
3169 	WREG32(RADEON_BIOS_5_SCRATCH, bios_5_scratch);
3170 }
3171 
3172 void
3173 radeon_combios_encoder_crtc_scratch_regs(struct drm_encoder *encoder, int crtc)
3174 {
3175 	struct drm_device *dev = encoder->dev;
3176 	struct radeon_device *rdev = dev->dev_private;
3177 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
3178 	uint32_t bios_5_scratch = RREG32(RADEON_BIOS_5_SCRATCH);
3179 
3180 	if (radeon_encoder->devices & ATOM_DEVICE_TV1_SUPPORT) {
3181 		bios_5_scratch &= ~RADEON_TV1_CRTC_MASK;
3182 		bios_5_scratch |= (crtc << RADEON_TV1_CRTC_SHIFT);
3183 	}
3184 	if (radeon_encoder->devices & ATOM_DEVICE_CRT1_SUPPORT) {
3185 		bios_5_scratch &= ~RADEON_CRT1_CRTC_MASK;
3186 		bios_5_scratch |= (crtc << RADEON_CRT1_CRTC_SHIFT);
3187 	}
3188 	if (radeon_encoder->devices & ATOM_DEVICE_CRT2_SUPPORT) {
3189 		bios_5_scratch &= ~RADEON_CRT2_CRTC_MASK;
3190 		bios_5_scratch |= (crtc << RADEON_CRT2_CRTC_SHIFT);
3191 	}
3192 	if (radeon_encoder->devices & ATOM_DEVICE_LCD1_SUPPORT) {
3193 		bios_5_scratch &= ~RADEON_LCD1_CRTC_MASK;
3194 		bios_5_scratch |= (crtc << RADEON_LCD1_CRTC_SHIFT);
3195 	}
3196 	if (radeon_encoder->devices & ATOM_DEVICE_DFP1_SUPPORT) {
3197 		bios_5_scratch &= ~RADEON_DFP1_CRTC_MASK;
3198 		bios_5_scratch |= (crtc << RADEON_DFP1_CRTC_SHIFT);
3199 	}
3200 	if (radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT) {
3201 		bios_5_scratch &= ~RADEON_DFP2_CRTC_MASK;
3202 		bios_5_scratch |= (crtc << RADEON_DFP2_CRTC_SHIFT);
3203 	}
3204 	WREG32(RADEON_BIOS_5_SCRATCH, bios_5_scratch);
3205 }
3206 
3207 void
3208 radeon_combios_encoder_dpms_scratch_regs(struct drm_encoder *encoder, bool on)
3209 {
3210 	struct drm_device *dev = encoder->dev;
3211 	struct radeon_device *rdev = dev->dev_private;
3212 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
3213 	uint32_t bios_6_scratch = RREG32(RADEON_BIOS_6_SCRATCH);
3214 
3215 	if (radeon_encoder->devices & (ATOM_DEVICE_TV_SUPPORT)) {
3216 		if (on)
3217 			bios_6_scratch |= RADEON_TV_DPMS_ON;
3218 		else
3219 			bios_6_scratch &= ~RADEON_TV_DPMS_ON;
3220 	}
3221 	if (radeon_encoder->devices & (ATOM_DEVICE_CRT_SUPPORT)) {
3222 		if (on)
3223 			bios_6_scratch |= RADEON_CRT_DPMS_ON;
3224 		else
3225 			bios_6_scratch &= ~RADEON_CRT_DPMS_ON;
3226 	}
3227 	if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
3228 		if (on)
3229 			bios_6_scratch |= RADEON_LCD_DPMS_ON;
3230 		else
3231 			bios_6_scratch &= ~RADEON_LCD_DPMS_ON;
3232 	}
3233 	if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
3234 		if (on)
3235 			bios_6_scratch |= RADEON_DFP_DPMS_ON;
3236 		else
3237 			bios_6_scratch &= ~RADEON_DFP_DPMS_ON;
3238 	}
3239 	WREG32(RADEON_BIOS_6_SCRATCH, bios_6_scratch);
3240 }
3241