1 /*
2  * Copyright 2007-8 Advanced Micro Devices, Inc.
3  * Copyright 2008 Red Hat Inc.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be included in
13  * all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21  * OTHER DEALINGS IN THE SOFTWARE.
22  *
23  * Authors: Dave Airlie
24  *          Alex Deucher
25  */
26 
27 #include <linux/backlight.h>
28 #include <linux/pci.h>
29 
30 #include <drm/drm_device.h>
31 #include <drm/drm_file.h>
32 #include <drm/drm_modeset_helper_vtables.h>
33 #include <drm/drm_util.h>
34 #include <drm/radeon_drm.h>
35 
36 #include <acpi/video.h>
37 
38 #include "radeon.h"
39 #include "radeon_asic.h"
40 #include "radeon_legacy_encoders.h"
41 #include "atom.h"
42 #ifdef CONFIG_PMAC_BACKLIGHT
43 #include <asm/backlight.h>
44 #endif
45 
46 static void radeon_legacy_encoder_disable(struct drm_encoder *encoder)
47 {
48 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
49 	const struct drm_encoder_helper_funcs *encoder_funcs;
50 
51 	encoder_funcs = encoder->helper_private;
52 	encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF);
53 	radeon_encoder->active_device = 0;
54 }
55 
56 static void radeon_legacy_lvds_update(struct drm_encoder *encoder, int mode)
57 {
58 	struct drm_device *dev = encoder->dev;
59 	struct radeon_device *rdev = dev->dev_private;
60 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
61 	uint32_t lvds_gen_cntl, lvds_pll_cntl, pixclks_cntl, disp_pwr_man;
62 	int panel_pwr_delay = 2000;
63 	bool is_mac = false;
64 	uint8_t backlight_level;
65 	DRM_DEBUG_KMS("\n");
66 
67 	lvds_gen_cntl = RREG32(RADEON_LVDS_GEN_CNTL);
68 	backlight_level = (lvds_gen_cntl >> RADEON_LVDS_BL_MOD_LEVEL_SHIFT) & 0xff;
69 
70 	if (radeon_encoder->enc_priv) {
71 		if (rdev->is_atom_bios) {
72 			struct radeon_encoder_atom_dig *lvds = radeon_encoder->enc_priv;
73 			panel_pwr_delay = lvds->panel_pwr_delay;
74 			if (lvds->bl_dev)
75 				backlight_level = lvds->backlight_level;
76 		} else {
77 			struct radeon_encoder_lvds *lvds = radeon_encoder->enc_priv;
78 			panel_pwr_delay = lvds->panel_pwr_delay;
79 			if (lvds->bl_dev)
80 				backlight_level = lvds->backlight_level;
81 		}
82 	}
83 
84 	/* macs (and possibly some x86 oem systems?) wire up LVDS strangely
85 	 * Taken from radeonfb.
86 	 */
87 	if ((rdev->mode_info.connector_table == CT_IBOOK) ||
88 	    (rdev->mode_info.connector_table == CT_POWERBOOK_EXTERNAL) ||
89 	    (rdev->mode_info.connector_table == CT_POWERBOOK_INTERNAL) ||
90 	    (rdev->mode_info.connector_table == CT_POWERBOOK_VGA))
91 		is_mac = true;
92 
93 	switch (mode) {
94 	case DRM_MODE_DPMS_ON:
95 		disp_pwr_man = RREG32(RADEON_DISP_PWR_MAN);
96 		disp_pwr_man |= RADEON_AUTO_PWRUP_EN;
97 		WREG32(RADEON_DISP_PWR_MAN, disp_pwr_man);
98 		lvds_pll_cntl = RREG32(RADEON_LVDS_PLL_CNTL);
99 		lvds_pll_cntl |= RADEON_LVDS_PLL_EN;
100 		WREG32(RADEON_LVDS_PLL_CNTL, lvds_pll_cntl);
101 		mdelay(1);
102 
103 		lvds_pll_cntl = RREG32(RADEON_LVDS_PLL_CNTL);
104 		lvds_pll_cntl &= ~RADEON_LVDS_PLL_RESET;
105 		WREG32(RADEON_LVDS_PLL_CNTL, lvds_pll_cntl);
106 
107 		lvds_gen_cntl &= ~(RADEON_LVDS_DISPLAY_DIS |
108 				   RADEON_LVDS_BL_MOD_LEVEL_MASK);
109 		lvds_gen_cntl |= (RADEON_LVDS_ON | RADEON_LVDS_EN |
110 				  RADEON_LVDS_DIGON | RADEON_LVDS_BLON |
111 				  (backlight_level << RADEON_LVDS_BL_MOD_LEVEL_SHIFT));
112 		if (is_mac)
113 			lvds_gen_cntl |= RADEON_LVDS_BL_MOD_EN;
114 		mdelay(panel_pwr_delay);
115 		WREG32(RADEON_LVDS_GEN_CNTL, lvds_gen_cntl);
116 		break;
117 	case DRM_MODE_DPMS_STANDBY:
118 	case DRM_MODE_DPMS_SUSPEND:
119 	case DRM_MODE_DPMS_OFF:
120 		pixclks_cntl = RREG32_PLL(RADEON_PIXCLKS_CNTL);
121 		WREG32_PLL_P(RADEON_PIXCLKS_CNTL, 0, ~RADEON_PIXCLK_LVDS_ALWAYS_ONb);
122 		lvds_gen_cntl |= RADEON_LVDS_DISPLAY_DIS;
123 		if (is_mac) {
124 			lvds_gen_cntl &= ~RADEON_LVDS_BL_MOD_EN;
125 			WREG32(RADEON_LVDS_GEN_CNTL, lvds_gen_cntl);
126 			lvds_gen_cntl &= ~(RADEON_LVDS_ON | RADEON_LVDS_EN);
127 		} else {
128 			WREG32(RADEON_LVDS_GEN_CNTL, lvds_gen_cntl);
129 			lvds_gen_cntl &= ~(RADEON_LVDS_ON | RADEON_LVDS_BLON | RADEON_LVDS_EN | RADEON_LVDS_DIGON);
130 		}
131 		mdelay(panel_pwr_delay);
132 		WREG32(RADEON_LVDS_GEN_CNTL, lvds_gen_cntl);
133 		WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl);
134 		mdelay(panel_pwr_delay);
135 		break;
136 	}
137 
138 	if (rdev->is_atom_bios)
139 		radeon_atombios_encoder_dpms_scratch_regs(encoder, (mode == DRM_MODE_DPMS_ON) ? true : false);
140 	else
141 		radeon_combios_encoder_dpms_scratch_regs(encoder, (mode == DRM_MODE_DPMS_ON) ? true : false);
142 
143 }
144 
145 static void radeon_legacy_lvds_dpms(struct drm_encoder *encoder, int mode)
146 {
147 	struct radeon_device *rdev = encoder->dev->dev_private;
148 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
149 	DRM_DEBUG("\n");
150 
151 	if (radeon_encoder->enc_priv) {
152 		if (rdev->is_atom_bios) {
153 			struct radeon_encoder_atom_dig *lvds = radeon_encoder->enc_priv;
154 			lvds->dpms_mode = mode;
155 		} else {
156 			struct radeon_encoder_lvds *lvds = radeon_encoder->enc_priv;
157 			lvds->dpms_mode = mode;
158 		}
159 	}
160 
161 	radeon_legacy_lvds_update(encoder, mode);
162 }
163 
164 static void radeon_legacy_lvds_prepare(struct drm_encoder *encoder)
165 {
166 	struct radeon_device *rdev = encoder->dev->dev_private;
167 
168 	if (rdev->is_atom_bios)
169 		radeon_atom_output_lock(encoder, true);
170 	else
171 		radeon_combios_output_lock(encoder, true);
172 	radeon_legacy_lvds_dpms(encoder, DRM_MODE_DPMS_OFF);
173 }
174 
175 static void radeon_legacy_lvds_commit(struct drm_encoder *encoder)
176 {
177 	struct radeon_device *rdev = encoder->dev->dev_private;
178 
179 	radeon_legacy_lvds_dpms(encoder, DRM_MODE_DPMS_ON);
180 	if (rdev->is_atom_bios)
181 		radeon_atom_output_lock(encoder, false);
182 	else
183 		radeon_combios_output_lock(encoder, false);
184 }
185 
186 static void radeon_legacy_lvds_mode_set(struct drm_encoder *encoder,
187 					struct drm_display_mode *mode,
188 					struct drm_display_mode *adjusted_mode)
189 {
190 	struct drm_device *dev = encoder->dev;
191 	struct radeon_device *rdev = dev->dev_private;
192 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
193 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
194 	uint32_t lvds_pll_cntl, lvds_gen_cntl, lvds_ss_gen_cntl;
195 
196 	DRM_DEBUG_KMS("\n");
197 
198 	lvds_pll_cntl = RREG32(RADEON_LVDS_PLL_CNTL);
199 	lvds_pll_cntl &= ~RADEON_LVDS_PLL_EN;
200 
201 	lvds_ss_gen_cntl = RREG32(RADEON_LVDS_SS_GEN_CNTL);
202 	if (rdev->is_atom_bios) {
203 		/* LVDS_GEN_CNTL parameters are computed in LVDSEncoderControl
204 		 * need to call that on resume to set up the reg properly.
205 		 */
206 		radeon_encoder->pixel_clock = adjusted_mode->clock;
207 		atombios_digital_setup(encoder, PANEL_ENCODER_ACTION_ENABLE);
208 		lvds_gen_cntl = RREG32(RADEON_LVDS_GEN_CNTL);
209 	} else {
210 		struct radeon_encoder_lvds *lvds = (struct radeon_encoder_lvds *)radeon_encoder->enc_priv;
211 		if (lvds) {
212 			DRM_DEBUG_KMS("bios LVDS_GEN_CNTL: 0x%x\n", lvds->lvds_gen_cntl);
213 			lvds_gen_cntl = lvds->lvds_gen_cntl;
214 			lvds_ss_gen_cntl &= ~((0xf << RADEON_LVDS_PWRSEQ_DELAY1_SHIFT) |
215 					      (0xf << RADEON_LVDS_PWRSEQ_DELAY2_SHIFT));
216 			lvds_ss_gen_cntl |= ((lvds->panel_digon_delay << RADEON_LVDS_PWRSEQ_DELAY1_SHIFT) |
217 					     (lvds->panel_blon_delay << RADEON_LVDS_PWRSEQ_DELAY2_SHIFT));
218 		} else
219 			lvds_gen_cntl = RREG32(RADEON_LVDS_GEN_CNTL);
220 	}
221 	lvds_gen_cntl |= RADEON_LVDS_DISPLAY_DIS;
222 	lvds_gen_cntl &= ~(RADEON_LVDS_ON |
223 			   RADEON_LVDS_BLON |
224 			   RADEON_LVDS_EN |
225 			   RADEON_LVDS_RST_FM);
226 
227 	if (ASIC_IS_R300(rdev))
228 		lvds_pll_cntl &= ~(R300_LVDS_SRC_SEL_MASK);
229 
230 	if (radeon_crtc->crtc_id == 0) {
231 		if (ASIC_IS_R300(rdev)) {
232 			if (radeon_encoder->rmx_type != RMX_OFF)
233 				lvds_pll_cntl |= R300_LVDS_SRC_SEL_RMX;
234 		} else
235 			lvds_gen_cntl &= ~RADEON_LVDS_SEL_CRTC2;
236 	} else {
237 		if (ASIC_IS_R300(rdev))
238 			lvds_pll_cntl |= R300_LVDS_SRC_SEL_CRTC2;
239 		else
240 			lvds_gen_cntl |= RADEON_LVDS_SEL_CRTC2;
241 	}
242 
243 	WREG32(RADEON_LVDS_GEN_CNTL, lvds_gen_cntl);
244 	WREG32(RADEON_LVDS_PLL_CNTL, lvds_pll_cntl);
245 	WREG32(RADEON_LVDS_SS_GEN_CNTL, lvds_ss_gen_cntl);
246 
247 	if (rdev->family == CHIP_RV410)
248 		WREG32(RADEON_CLOCK_CNTL_INDEX, 0);
249 
250 	if (rdev->is_atom_bios)
251 		radeon_atombios_encoder_crtc_scratch_regs(encoder, radeon_crtc->crtc_id);
252 	else
253 		radeon_combios_encoder_crtc_scratch_regs(encoder, radeon_crtc->crtc_id);
254 }
255 
256 static bool radeon_legacy_mode_fixup(struct drm_encoder *encoder,
257 				     const struct drm_display_mode *mode,
258 				     struct drm_display_mode *adjusted_mode)
259 {
260 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
261 
262 	/* set the active encoder to connector routing */
263 	radeon_encoder_set_active_device(encoder);
264 	drm_mode_set_crtcinfo(adjusted_mode, 0);
265 
266 	/* get the native mode for LVDS */
267 	if (radeon_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT))
268 		radeon_panel_mode_fixup(encoder, adjusted_mode);
269 
270 	return true;
271 }
272 
273 static const struct drm_encoder_helper_funcs radeon_legacy_lvds_helper_funcs = {
274 	.dpms = radeon_legacy_lvds_dpms,
275 	.mode_fixup = radeon_legacy_mode_fixup,
276 	.prepare = radeon_legacy_lvds_prepare,
277 	.mode_set = radeon_legacy_lvds_mode_set,
278 	.commit = radeon_legacy_lvds_commit,
279 	.disable = radeon_legacy_encoder_disable,
280 };
281 
282 u8
283 radeon_legacy_get_backlight_level(struct radeon_encoder *radeon_encoder)
284 {
285 	struct drm_device *dev = radeon_encoder->base.dev;
286 	struct radeon_device *rdev = dev->dev_private;
287 	u8 backlight_level;
288 
289 	backlight_level = (RREG32(RADEON_LVDS_GEN_CNTL) >>
290 			   RADEON_LVDS_BL_MOD_LEVEL_SHIFT) & 0xff;
291 
292 	return backlight_level;
293 }
294 
295 void
296 radeon_legacy_set_backlight_level(struct radeon_encoder *radeon_encoder, u8 level)
297 {
298 	struct drm_device *dev = radeon_encoder->base.dev;
299 	struct radeon_device *rdev = dev->dev_private;
300 	int dpms_mode = DRM_MODE_DPMS_ON;
301 
302 	if (radeon_encoder->enc_priv) {
303 		if (rdev->is_atom_bios) {
304 			struct radeon_encoder_atom_dig *lvds = radeon_encoder->enc_priv;
305 			if (lvds->backlight_level > 0)
306 				dpms_mode = lvds->dpms_mode;
307 			else
308 				dpms_mode = DRM_MODE_DPMS_OFF;
309 			lvds->backlight_level = level;
310 		} else {
311 			struct radeon_encoder_lvds *lvds = radeon_encoder->enc_priv;
312 			if (lvds->backlight_level > 0)
313 				dpms_mode = lvds->dpms_mode;
314 			else
315 				dpms_mode = DRM_MODE_DPMS_OFF;
316 			lvds->backlight_level = level;
317 		}
318 	}
319 
320 	radeon_legacy_lvds_update(&radeon_encoder->base, dpms_mode);
321 }
322 
323 static uint8_t radeon_legacy_lvds_level(struct backlight_device *bd)
324 {
325 	struct radeon_backlight_privdata *pdata = bl_get_data(bd);
326 	uint8_t level;
327 
328 	/* Convert brightness to hardware level */
329 	if (bd->props.brightness < 0)
330 		level = 0;
331 	else if (bd->props.brightness > RADEON_MAX_BL_LEVEL)
332 		level = RADEON_MAX_BL_LEVEL;
333 	else
334 		level = bd->props.brightness;
335 
336 	if (pdata->negative)
337 		level = RADEON_MAX_BL_LEVEL - level;
338 
339 	return level;
340 }
341 
342 static int radeon_legacy_backlight_update_status(struct backlight_device *bd)
343 {
344 	struct radeon_backlight_privdata *pdata = bl_get_data(bd);
345 	struct radeon_encoder *radeon_encoder = pdata->encoder;
346 
347 	radeon_legacy_set_backlight_level(radeon_encoder,
348 					  radeon_legacy_lvds_level(bd));
349 
350 	return 0;
351 }
352 
353 static int radeon_legacy_backlight_get_brightness(struct backlight_device *bd)
354 {
355 	struct radeon_backlight_privdata *pdata = bl_get_data(bd);
356 	struct radeon_encoder *radeon_encoder = pdata->encoder;
357 	struct drm_device *dev = radeon_encoder->base.dev;
358 	struct radeon_device *rdev = dev->dev_private;
359 	uint8_t backlight_level;
360 
361 	backlight_level = (RREG32(RADEON_LVDS_GEN_CNTL) >>
362 			   RADEON_LVDS_BL_MOD_LEVEL_SHIFT) & 0xff;
363 
364 	return pdata->negative ? RADEON_MAX_BL_LEVEL - backlight_level : backlight_level;
365 }
366 
367 static const struct backlight_ops radeon_backlight_ops = {
368 	.get_brightness = radeon_legacy_backlight_get_brightness,
369 	.update_status	= radeon_legacy_backlight_update_status,
370 };
371 
372 void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
373 				  struct drm_connector *drm_connector)
374 {
375 	struct drm_device *dev = radeon_encoder->base.dev;
376 	struct radeon_device *rdev = dev->dev_private;
377 	struct backlight_device *bd;
378 	struct backlight_properties props;
379 	struct radeon_backlight_privdata *pdata;
380 	uint8_t backlight_level;
381 	char bl_name[16];
382 
383 	if (!radeon_encoder->enc_priv)
384 		return;
385 
386 #ifdef CONFIG_PMAC_BACKLIGHT
387 	if (!pmac_has_backlight_type("ati") &&
388 	    !pmac_has_backlight_type("mnca"))
389 		return;
390 #endif
391 
392 	if (!acpi_video_backlight_use_native()) {
393 		drm_info(dev, "Skipping radeon legacy LVDS backlight registration\n");
394 		return;
395 	}
396 
397 	pdata = kmalloc(sizeof(struct radeon_backlight_privdata), GFP_KERNEL);
398 	if (!pdata) {
399 		DRM_ERROR("Memory allocation failed\n");
400 		goto error;
401 	}
402 
403 	memset(&props, 0, sizeof(props));
404 	props.max_brightness = RADEON_MAX_BL_LEVEL;
405 	props.type = BACKLIGHT_RAW;
406 	snprintf(bl_name, sizeof(bl_name),
407 		 "radeon_bl%d", dev->primary->index);
408 	bd = backlight_device_register(bl_name, drm_connector->kdev,
409 				       pdata, &radeon_backlight_ops, &props);
410 	if (IS_ERR(bd)) {
411 		DRM_ERROR("Backlight registration failed\n");
412 		goto error;
413 	}
414 
415 	pdata->encoder = radeon_encoder;
416 
417 	backlight_level = (RREG32(RADEON_LVDS_GEN_CNTL) >>
418 			   RADEON_LVDS_BL_MOD_LEVEL_SHIFT) & 0xff;
419 
420 	/* First, try to detect backlight level sense based on the assumption
421 	 * that firmware set it up at full brightness
422 	 */
423 	if (backlight_level == 0)
424 		pdata->negative = true;
425 	else if (backlight_level == 0xff)
426 		pdata->negative = false;
427 	else {
428 		/* XXX hack... maybe some day we can figure out in what direction
429 		 * backlight should work on a given panel?
430 		 */
431 		pdata->negative = (rdev->family != CHIP_RV200 &&
432 				   rdev->family != CHIP_RV250 &&
433 				   rdev->family != CHIP_RV280 &&
434 				   rdev->family != CHIP_RV350);
435 
436 #ifdef CONFIG_PMAC_BACKLIGHT
437 		pdata->negative = (pdata->negative ||
438 				   of_machine_is_compatible("PowerBook4,3") ||
439 				   of_machine_is_compatible("PowerBook6,3") ||
440 				   of_machine_is_compatible("PowerBook6,5"));
441 #endif
442 	}
443 
444 	if (rdev->is_atom_bios) {
445 		struct radeon_encoder_atom_dig *lvds = radeon_encoder->enc_priv;
446 		lvds->bl_dev = bd;
447 	} else {
448 		struct radeon_encoder_lvds *lvds = radeon_encoder->enc_priv;
449 		lvds->bl_dev = bd;
450 	}
451 
452 	bd->props.brightness = radeon_legacy_backlight_get_brightness(bd);
453 	bd->props.power = FB_BLANK_UNBLANK;
454 	backlight_update_status(bd);
455 
456 	DRM_INFO("radeon legacy LVDS backlight initialized\n");
457 	rdev->mode_info.bl_encoder = radeon_encoder;
458 
459 	return;
460 
461 error:
462 	kfree(pdata);
463 	return;
464 }
465 
466 static void radeon_legacy_backlight_exit(struct radeon_encoder *radeon_encoder)
467 {
468 	struct drm_device *dev = radeon_encoder->base.dev;
469 	struct radeon_device *rdev = dev->dev_private;
470 	struct backlight_device *bd = NULL;
471 
472 	if (!radeon_encoder->enc_priv)
473 		return;
474 
475 	if (rdev->is_atom_bios) {
476 		struct radeon_encoder_atom_dig *lvds = radeon_encoder->enc_priv;
477 		bd = lvds->bl_dev;
478 		lvds->bl_dev = NULL;
479 	} else {
480 		struct radeon_encoder_lvds *lvds = radeon_encoder->enc_priv;
481 		bd = lvds->bl_dev;
482 		lvds->bl_dev = NULL;
483 	}
484 
485 	if (bd) {
486 		struct radeon_backlight_privdata *pdata;
487 
488 		pdata = bl_get_data(bd);
489 		backlight_device_unregister(bd);
490 		kfree(pdata);
491 
492 		DRM_INFO("radeon legacy LVDS backlight unloaded\n");
493 	}
494 }
495 
496 static void radeon_lvds_enc_destroy(struct drm_encoder *encoder)
497 {
498 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
499 
500 	if (radeon_encoder->enc_priv) {
501 		radeon_legacy_backlight_exit(radeon_encoder);
502 		kfree(radeon_encoder->enc_priv);
503 	}
504 	drm_encoder_cleanup(encoder);
505 	kfree(radeon_encoder);
506 }
507 
508 static const struct drm_encoder_funcs radeon_legacy_lvds_enc_funcs = {
509 	.destroy = radeon_lvds_enc_destroy,
510 };
511 
512 static void radeon_legacy_primary_dac_dpms(struct drm_encoder *encoder, int mode)
513 {
514 	struct drm_device *dev = encoder->dev;
515 	struct radeon_device *rdev = dev->dev_private;
516 	uint32_t crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL);
517 	uint32_t dac_cntl = RREG32(RADEON_DAC_CNTL);
518 	uint32_t dac_macro_cntl = RREG32(RADEON_DAC_MACRO_CNTL);
519 
520 	DRM_DEBUG_KMS("\n");
521 
522 	switch (mode) {
523 	case DRM_MODE_DPMS_ON:
524 		crtc_ext_cntl |= RADEON_CRTC_CRT_ON;
525 		dac_cntl &= ~RADEON_DAC_PDWN;
526 		dac_macro_cntl &= ~(RADEON_DAC_PDWN_R |
527 				    RADEON_DAC_PDWN_G |
528 				    RADEON_DAC_PDWN_B);
529 		break;
530 	case DRM_MODE_DPMS_STANDBY:
531 	case DRM_MODE_DPMS_SUSPEND:
532 	case DRM_MODE_DPMS_OFF:
533 		crtc_ext_cntl &= ~RADEON_CRTC_CRT_ON;
534 		dac_cntl |= RADEON_DAC_PDWN;
535 		dac_macro_cntl |= (RADEON_DAC_PDWN_R |
536 				   RADEON_DAC_PDWN_G |
537 				   RADEON_DAC_PDWN_B);
538 		break;
539 	}
540 
541 	/* handled in radeon_crtc_dpms() */
542 	if (!(rdev->flags & RADEON_SINGLE_CRTC))
543 		WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl);
544 	WREG32(RADEON_DAC_CNTL, dac_cntl);
545 	WREG32(RADEON_DAC_MACRO_CNTL, dac_macro_cntl);
546 
547 	if (rdev->is_atom_bios)
548 		radeon_atombios_encoder_dpms_scratch_regs(encoder, (mode == DRM_MODE_DPMS_ON) ? true : false);
549 	else
550 		radeon_combios_encoder_dpms_scratch_regs(encoder, (mode == DRM_MODE_DPMS_ON) ? true : false);
551 
552 }
553 
554 static void radeon_legacy_primary_dac_prepare(struct drm_encoder *encoder)
555 {
556 	struct radeon_device *rdev = encoder->dev->dev_private;
557 
558 	if (rdev->is_atom_bios)
559 		radeon_atom_output_lock(encoder, true);
560 	else
561 		radeon_combios_output_lock(encoder, true);
562 	radeon_legacy_primary_dac_dpms(encoder, DRM_MODE_DPMS_OFF);
563 }
564 
565 static void radeon_legacy_primary_dac_commit(struct drm_encoder *encoder)
566 {
567 	struct radeon_device *rdev = encoder->dev->dev_private;
568 
569 	radeon_legacy_primary_dac_dpms(encoder, DRM_MODE_DPMS_ON);
570 
571 	if (rdev->is_atom_bios)
572 		radeon_atom_output_lock(encoder, false);
573 	else
574 		radeon_combios_output_lock(encoder, false);
575 }
576 
577 static void radeon_legacy_primary_dac_mode_set(struct drm_encoder *encoder,
578 					       struct drm_display_mode *mode,
579 					       struct drm_display_mode *adjusted_mode)
580 {
581 	struct drm_device *dev = encoder->dev;
582 	struct radeon_device *rdev = dev->dev_private;
583 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
584 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
585 	uint32_t disp_output_cntl, dac_cntl, dac2_cntl, dac_macro_cntl;
586 
587 	DRM_DEBUG_KMS("\n");
588 
589 	if (radeon_crtc->crtc_id == 0) {
590 		if (rdev->family == CHIP_R200 || ASIC_IS_R300(rdev)) {
591 			disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL) &
592 				~(RADEON_DISP_DAC_SOURCE_MASK);
593 			WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl);
594 		} else {
595 			dac2_cntl = RREG32(RADEON_DAC_CNTL2)  & ~(RADEON_DAC2_DAC_CLK_SEL);
596 			WREG32(RADEON_DAC_CNTL2, dac2_cntl);
597 		}
598 	} else {
599 		if (rdev->family == CHIP_R200 || ASIC_IS_R300(rdev)) {
600 			disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL) &
601 				~(RADEON_DISP_DAC_SOURCE_MASK);
602 			disp_output_cntl |= RADEON_DISP_DAC_SOURCE_CRTC2;
603 			WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl);
604 		} else {
605 			dac2_cntl = RREG32(RADEON_DAC_CNTL2) | RADEON_DAC2_DAC_CLK_SEL;
606 			WREG32(RADEON_DAC_CNTL2, dac2_cntl);
607 		}
608 	}
609 
610 	dac_cntl = (RADEON_DAC_MASK_ALL |
611 		    RADEON_DAC_VGA_ADR_EN |
612 		    /* TODO 6-bits */
613 		    RADEON_DAC_8BIT_EN);
614 
615 	WREG32_P(RADEON_DAC_CNTL,
616 		       dac_cntl,
617 		       RADEON_DAC_RANGE_CNTL |
618 		       RADEON_DAC_BLANKING);
619 
620 	if (radeon_encoder->enc_priv) {
621 		struct radeon_encoder_primary_dac *p_dac = (struct radeon_encoder_primary_dac *)radeon_encoder->enc_priv;
622 		dac_macro_cntl = p_dac->ps2_pdac_adj;
623 	} else
624 		dac_macro_cntl = RREG32(RADEON_DAC_MACRO_CNTL);
625 	dac_macro_cntl |= RADEON_DAC_PDWN_R | RADEON_DAC_PDWN_G | RADEON_DAC_PDWN_B;
626 	WREG32(RADEON_DAC_MACRO_CNTL, dac_macro_cntl);
627 
628 	if (rdev->is_atom_bios)
629 		radeon_atombios_encoder_crtc_scratch_regs(encoder, radeon_crtc->crtc_id);
630 	else
631 		radeon_combios_encoder_crtc_scratch_regs(encoder, radeon_crtc->crtc_id);
632 }
633 
634 static enum drm_connector_status radeon_legacy_primary_dac_detect(struct drm_encoder *encoder,
635 								  struct drm_connector *connector)
636 {
637 	struct drm_device *dev = encoder->dev;
638 	struct radeon_device *rdev = dev->dev_private;
639 	uint32_t vclk_ecp_cntl, crtc_ext_cntl;
640 	uint32_t dac_ext_cntl, dac_cntl, dac_macro_cntl, tmp;
641 	enum drm_connector_status found = connector_status_disconnected;
642 	bool color = true;
643 
644 	/* just don't bother on RN50 those chip are often connected to remoting
645 	 * console hw and often we get failure to load detect those. So to make
646 	 * everyone happy report the encoder as always connected.
647 	 */
648 	if (ASIC_IS_RN50(rdev)) {
649 		return connector_status_connected;
650 	}
651 
652 	/* save the regs we need */
653 	vclk_ecp_cntl = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
654 	crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL);
655 	dac_ext_cntl = RREG32(RADEON_DAC_EXT_CNTL);
656 	dac_cntl = RREG32(RADEON_DAC_CNTL);
657 	dac_macro_cntl = RREG32(RADEON_DAC_MACRO_CNTL);
658 
659 	tmp = vclk_ecp_cntl &
660 		~(RADEON_PIXCLK_ALWAYS_ONb | RADEON_PIXCLK_DAC_ALWAYS_ONb);
661 	WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp);
662 
663 	tmp = crtc_ext_cntl | RADEON_CRTC_CRT_ON;
664 	WREG32(RADEON_CRTC_EXT_CNTL, tmp);
665 
666 	tmp = RADEON_DAC_FORCE_BLANK_OFF_EN |
667 		RADEON_DAC_FORCE_DATA_EN;
668 
669 	if (color)
670 		tmp |= RADEON_DAC_FORCE_DATA_SEL_RGB;
671 	else
672 		tmp |= RADEON_DAC_FORCE_DATA_SEL_G;
673 
674 	if (ASIC_IS_R300(rdev))
675 		tmp |= (0x1b6 << RADEON_DAC_FORCE_DATA_SHIFT);
676 	else if (ASIC_IS_RV100(rdev))
677 		tmp |= (0x1ac << RADEON_DAC_FORCE_DATA_SHIFT);
678 	else
679 		tmp |= (0x180 << RADEON_DAC_FORCE_DATA_SHIFT);
680 
681 	WREG32(RADEON_DAC_EXT_CNTL, tmp);
682 
683 	tmp = dac_cntl & ~(RADEON_DAC_RANGE_CNTL_MASK | RADEON_DAC_PDWN);
684 	tmp |= RADEON_DAC_RANGE_CNTL_PS2 | RADEON_DAC_CMP_EN;
685 	WREG32(RADEON_DAC_CNTL, tmp);
686 
687 	tmp = dac_macro_cntl;
688 	tmp &= ~(RADEON_DAC_PDWN_R |
689 		 RADEON_DAC_PDWN_G |
690 		 RADEON_DAC_PDWN_B);
691 
692 	WREG32(RADEON_DAC_MACRO_CNTL, tmp);
693 
694 	mdelay(2);
695 
696 	if (RREG32(RADEON_DAC_CNTL) & RADEON_DAC_CMP_OUTPUT)
697 		found = connector_status_connected;
698 
699 	/* restore the regs we used */
700 	WREG32(RADEON_DAC_CNTL, dac_cntl);
701 	WREG32(RADEON_DAC_MACRO_CNTL, dac_macro_cntl);
702 	WREG32(RADEON_DAC_EXT_CNTL, dac_ext_cntl);
703 	WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl);
704 	WREG32_PLL(RADEON_VCLK_ECP_CNTL, vclk_ecp_cntl);
705 
706 	return found;
707 }
708 
709 static const struct drm_encoder_helper_funcs radeon_legacy_primary_dac_helper_funcs = {
710 	.dpms = radeon_legacy_primary_dac_dpms,
711 	.mode_fixup = radeon_legacy_mode_fixup,
712 	.prepare = radeon_legacy_primary_dac_prepare,
713 	.mode_set = radeon_legacy_primary_dac_mode_set,
714 	.commit = radeon_legacy_primary_dac_commit,
715 	.detect = radeon_legacy_primary_dac_detect,
716 	.disable = radeon_legacy_encoder_disable,
717 };
718 
719 
720 static const struct drm_encoder_funcs radeon_legacy_primary_dac_enc_funcs = {
721 	.destroy = radeon_enc_destroy,
722 };
723 
724 static void radeon_legacy_tmds_int_dpms(struct drm_encoder *encoder, int mode)
725 {
726 	struct drm_device *dev = encoder->dev;
727 	struct radeon_device *rdev = dev->dev_private;
728 	uint32_t fp_gen_cntl = RREG32(RADEON_FP_GEN_CNTL);
729 	DRM_DEBUG_KMS("\n");
730 
731 	switch (mode) {
732 	case DRM_MODE_DPMS_ON:
733 		fp_gen_cntl |= (RADEON_FP_FPON | RADEON_FP_TMDS_EN);
734 		break;
735 	case DRM_MODE_DPMS_STANDBY:
736 	case DRM_MODE_DPMS_SUSPEND:
737 	case DRM_MODE_DPMS_OFF:
738 		fp_gen_cntl &= ~(RADEON_FP_FPON | RADEON_FP_TMDS_EN);
739 		break;
740 	}
741 
742 	WREG32(RADEON_FP_GEN_CNTL, fp_gen_cntl);
743 
744 	if (rdev->is_atom_bios)
745 		radeon_atombios_encoder_dpms_scratch_regs(encoder, (mode == DRM_MODE_DPMS_ON) ? true : false);
746 	else
747 		radeon_combios_encoder_dpms_scratch_regs(encoder, (mode == DRM_MODE_DPMS_ON) ? true : false);
748 
749 }
750 
751 static void radeon_legacy_tmds_int_prepare(struct drm_encoder *encoder)
752 {
753 	struct radeon_device *rdev = encoder->dev->dev_private;
754 
755 	if (rdev->is_atom_bios)
756 		radeon_atom_output_lock(encoder, true);
757 	else
758 		radeon_combios_output_lock(encoder, true);
759 	radeon_legacy_tmds_int_dpms(encoder, DRM_MODE_DPMS_OFF);
760 }
761 
762 static void radeon_legacy_tmds_int_commit(struct drm_encoder *encoder)
763 {
764 	struct radeon_device *rdev = encoder->dev->dev_private;
765 
766 	radeon_legacy_tmds_int_dpms(encoder, DRM_MODE_DPMS_ON);
767 
768 	if (rdev->is_atom_bios)
769 		radeon_atom_output_lock(encoder, true);
770 	else
771 		radeon_combios_output_lock(encoder, true);
772 }
773 
774 static void radeon_legacy_tmds_int_mode_set(struct drm_encoder *encoder,
775 					    struct drm_display_mode *mode,
776 					    struct drm_display_mode *adjusted_mode)
777 {
778 	struct drm_device *dev = encoder->dev;
779 	struct radeon_device *rdev = dev->dev_private;
780 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
781 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
782 	uint32_t tmp, tmds_pll_cntl, tmds_transmitter_cntl, fp_gen_cntl;
783 	int i;
784 
785 	DRM_DEBUG_KMS("\n");
786 
787 	tmp = tmds_pll_cntl = RREG32(RADEON_TMDS_PLL_CNTL);
788 	tmp &= 0xfffff;
789 	if (rdev->family == CHIP_RV280) {
790 		/* bit 22 of TMDS_PLL_CNTL is read-back inverted */
791 		tmp ^= (1 << 22);
792 		tmds_pll_cntl ^= (1 << 22);
793 	}
794 
795 	if (radeon_encoder->enc_priv) {
796 		struct radeon_encoder_int_tmds *tmds = (struct radeon_encoder_int_tmds *)radeon_encoder->enc_priv;
797 
798 		for (i = 0; i < 4; i++) {
799 			if (tmds->tmds_pll[i].freq == 0)
800 				break;
801 			if ((uint32_t)(mode->clock / 10) < tmds->tmds_pll[i].freq) {
802 				tmp = tmds->tmds_pll[i].value ;
803 				break;
804 			}
805 		}
806 	}
807 
808 	if (ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV280)) {
809 		if (tmp & 0xfff00000)
810 			tmds_pll_cntl = tmp;
811 		else {
812 			tmds_pll_cntl &= 0xfff00000;
813 			tmds_pll_cntl |= tmp;
814 		}
815 	} else
816 		tmds_pll_cntl = tmp;
817 
818 	tmds_transmitter_cntl = RREG32(RADEON_TMDS_TRANSMITTER_CNTL) &
819 		~(RADEON_TMDS_TRANSMITTER_PLLRST);
820 
821 	if (rdev->family == CHIP_R200 ||
822 	    rdev->family == CHIP_R100 ||
823 	    ASIC_IS_R300(rdev))
824 		tmds_transmitter_cntl &= ~(RADEON_TMDS_TRANSMITTER_PLLEN);
825 	else /* RV chips got this bit reversed */
826 		tmds_transmitter_cntl |= RADEON_TMDS_TRANSMITTER_PLLEN;
827 
828 	fp_gen_cntl = (RREG32(RADEON_FP_GEN_CNTL) |
829 		      (RADEON_FP_CRTC_DONT_SHADOW_VPAR |
830 		       RADEON_FP_CRTC_DONT_SHADOW_HEND));
831 
832 	fp_gen_cntl &= ~(RADEON_FP_FPON | RADEON_FP_TMDS_EN);
833 
834 	fp_gen_cntl &= ~(RADEON_FP_RMX_HVSYNC_CONTROL_EN |
835 			 RADEON_FP_DFP_SYNC_SEL |
836 			 RADEON_FP_CRT_SYNC_SEL |
837 			 RADEON_FP_CRTC_LOCK_8DOT |
838 			 RADEON_FP_USE_SHADOW_EN |
839 			 RADEON_FP_CRTC_USE_SHADOW_VEND |
840 			 RADEON_FP_CRT_SYNC_ALT);
841 
842 	if (1) /*  FIXME rgbBits == 8 */
843 		fp_gen_cntl |= RADEON_FP_PANEL_FORMAT;  /* 24 bit format */
844 	else
845 		fp_gen_cntl &= ~RADEON_FP_PANEL_FORMAT;/* 18 bit format */
846 
847 	if (radeon_crtc->crtc_id == 0) {
848 		if (ASIC_IS_R300(rdev) || rdev->family == CHIP_R200) {
849 			fp_gen_cntl &= ~R200_FP_SOURCE_SEL_MASK;
850 			if (radeon_encoder->rmx_type != RMX_OFF)
851 				fp_gen_cntl |= R200_FP_SOURCE_SEL_RMX;
852 			else
853 				fp_gen_cntl |= R200_FP_SOURCE_SEL_CRTC1;
854 		} else
855 			fp_gen_cntl &= ~RADEON_FP_SEL_CRTC2;
856 	} else {
857 		if (ASIC_IS_R300(rdev) || rdev->family == CHIP_R200) {
858 			fp_gen_cntl &= ~R200_FP_SOURCE_SEL_MASK;
859 			fp_gen_cntl |= R200_FP_SOURCE_SEL_CRTC2;
860 		} else
861 			fp_gen_cntl |= RADEON_FP_SEL_CRTC2;
862 	}
863 
864 	WREG32(RADEON_TMDS_PLL_CNTL, tmds_pll_cntl);
865 	WREG32(RADEON_TMDS_TRANSMITTER_CNTL, tmds_transmitter_cntl);
866 	WREG32(RADEON_FP_GEN_CNTL, fp_gen_cntl);
867 
868 	if (rdev->is_atom_bios)
869 		radeon_atombios_encoder_crtc_scratch_regs(encoder, radeon_crtc->crtc_id);
870 	else
871 		radeon_combios_encoder_crtc_scratch_regs(encoder, radeon_crtc->crtc_id);
872 }
873 
874 static const struct drm_encoder_helper_funcs radeon_legacy_tmds_int_helper_funcs = {
875 	.dpms = radeon_legacy_tmds_int_dpms,
876 	.mode_fixup = radeon_legacy_mode_fixup,
877 	.prepare = radeon_legacy_tmds_int_prepare,
878 	.mode_set = radeon_legacy_tmds_int_mode_set,
879 	.commit = radeon_legacy_tmds_int_commit,
880 	.disable = radeon_legacy_encoder_disable,
881 };
882 
883 
884 static const struct drm_encoder_funcs radeon_legacy_tmds_int_enc_funcs = {
885 	.destroy = radeon_enc_destroy,
886 };
887 
888 static void radeon_legacy_tmds_ext_dpms(struct drm_encoder *encoder, int mode)
889 {
890 	struct drm_device *dev = encoder->dev;
891 	struct radeon_device *rdev = dev->dev_private;
892 	uint32_t fp2_gen_cntl = RREG32(RADEON_FP2_GEN_CNTL);
893 	DRM_DEBUG_KMS("\n");
894 
895 	switch (mode) {
896 	case DRM_MODE_DPMS_ON:
897 		fp2_gen_cntl &= ~RADEON_FP2_BLANK_EN;
898 		fp2_gen_cntl |= (RADEON_FP2_ON | RADEON_FP2_DVO_EN);
899 		break;
900 	case DRM_MODE_DPMS_STANDBY:
901 	case DRM_MODE_DPMS_SUSPEND:
902 	case DRM_MODE_DPMS_OFF:
903 		fp2_gen_cntl |= RADEON_FP2_BLANK_EN;
904 		fp2_gen_cntl &= ~(RADEON_FP2_ON | RADEON_FP2_DVO_EN);
905 		break;
906 	}
907 
908 	WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl);
909 
910 	if (rdev->is_atom_bios)
911 		radeon_atombios_encoder_dpms_scratch_regs(encoder, (mode == DRM_MODE_DPMS_ON) ? true : false);
912 	else
913 		radeon_combios_encoder_dpms_scratch_regs(encoder, (mode == DRM_MODE_DPMS_ON) ? true : false);
914 
915 }
916 
917 static void radeon_legacy_tmds_ext_prepare(struct drm_encoder *encoder)
918 {
919 	struct radeon_device *rdev = encoder->dev->dev_private;
920 
921 	if (rdev->is_atom_bios)
922 		radeon_atom_output_lock(encoder, true);
923 	else
924 		radeon_combios_output_lock(encoder, true);
925 	radeon_legacy_tmds_ext_dpms(encoder, DRM_MODE_DPMS_OFF);
926 }
927 
928 static void radeon_legacy_tmds_ext_commit(struct drm_encoder *encoder)
929 {
930 	struct radeon_device *rdev = encoder->dev->dev_private;
931 	radeon_legacy_tmds_ext_dpms(encoder, DRM_MODE_DPMS_ON);
932 
933 	if (rdev->is_atom_bios)
934 		radeon_atom_output_lock(encoder, false);
935 	else
936 		radeon_combios_output_lock(encoder, false);
937 }
938 
939 static void radeon_legacy_tmds_ext_mode_set(struct drm_encoder *encoder,
940 					    struct drm_display_mode *mode,
941 					    struct drm_display_mode *adjusted_mode)
942 {
943 	struct drm_device *dev = encoder->dev;
944 	struct radeon_device *rdev = dev->dev_private;
945 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
946 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
947 	uint32_t fp2_gen_cntl;
948 
949 	DRM_DEBUG_KMS("\n");
950 
951 	if (rdev->is_atom_bios) {
952 		radeon_encoder->pixel_clock = adjusted_mode->clock;
953 		atombios_dvo_setup(encoder, ATOM_ENABLE);
954 		fp2_gen_cntl = RREG32(RADEON_FP2_GEN_CNTL);
955 	} else {
956 		fp2_gen_cntl = RREG32(RADEON_FP2_GEN_CNTL);
957 
958 		if (1) /*  FIXME rgbBits == 8 */
959 			fp2_gen_cntl |= RADEON_FP2_PANEL_FORMAT; /* 24 bit format, */
960 		else
961 			fp2_gen_cntl &= ~RADEON_FP2_PANEL_FORMAT;/* 18 bit format, */
962 
963 		fp2_gen_cntl &= ~(RADEON_FP2_ON |
964 				  RADEON_FP2_DVO_EN |
965 				  RADEON_FP2_DVO_RATE_SEL_SDR);
966 
967 		/* XXX: these are oem specific */
968 		if (ASIC_IS_R300(rdev)) {
969 			if ((rdev->pdev->device == 0x4850) &&
970 			    (rdev->pdev->subsystem_vendor == 0x1028) &&
971 			    (rdev->pdev->subsystem_device == 0x2001)) /* Dell Inspiron 8600 */
972 				fp2_gen_cntl |= R300_FP2_DVO_CLOCK_MODE_SINGLE;
973 			else
974 				fp2_gen_cntl |= RADEON_FP2_PAD_FLOP_EN | R300_FP2_DVO_CLOCK_MODE_SINGLE;
975 
976 			/*if (mode->clock > 165000)
977 			  fp2_gen_cntl |= R300_FP2_DVO_DUAL_CHANNEL_EN;*/
978 		}
979 		if (!radeon_combios_external_tmds_setup(encoder))
980 			radeon_external_tmds_setup(encoder);
981 	}
982 
983 	if (radeon_crtc->crtc_id == 0) {
984 		if ((rdev->family == CHIP_R200) || ASIC_IS_R300(rdev)) {
985 			fp2_gen_cntl &= ~R200_FP2_SOURCE_SEL_MASK;
986 			if (radeon_encoder->rmx_type != RMX_OFF)
987 				fp2_gen_cntl |= R200_FP2_SOURCE_SEL_RMX;
988 			else
989 				fp2_gen_cntl |= R200_FP2_SOURCE_SEL_CRTC1;
990 		} else
991 			fp2_gen_cntl &= ~RADEON_FP2_SRC_SEL_CRTC2;
992 	} else {
993 		if ((rdev->family == CHIP_R200) || ASIC_IS_R300(rdev)) {
994 			fp2_gen_cntl &= ~R200_FP2_SOURCE_SEL_MASK;
995 			fp2_gen_cntl |= R200_FP2_SOURCE_SEL_CRTC2;
996 		} else
997 			fp2_gen_cntl |= RADEON_FP2_SRC_SEL_CRTC2;
998 	}
999 
1000 	WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl);
1001 
1002 	if (rdev->is_atom_bios)
1003 		radeon_atombios_encoder_crtc_scratch_regs(encoder, radeon_crtc->crtc_id);
1004 	else
1005 		radeon_combios_encoder_crtc_scratch_regs(encoder, radeon_crtc->crtc_id);
1006 }
1007 
1008 static void radeon_ext_tmds_enc_destroy(struct drm_encoder *encoder)
1009 {
1010 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
1011 	/* don't destroy the i2c bus record here, this will be done in radeon_i2c_fini */
1012 	kfree(radeon_encoder->enc_priv);
1013 	drm_encoder_cleanup(encoder);
1014 	kfree(radeon_encoder);
1015 }
1016 
1017 static const struct drm_encoder_helper_funcs radeon_legacy_tmds_ext_helper_funcs = {
1018 	.dpms = radeon_legacy_tmds_ext_dpms,
1019 	.mode_fixup = radeon_legacy_mode_fixup,
1020 	.prepare = radeon_legacy_tmds_ext_prepare,
1021 	.mode_set = radeon_legacy_tmds_ext_mode_set,
1022 	.commit = radeon_legacy_tmds_ext_commit,
1023 	.disable = radeon_legacy_encoder_disable,
1024 };
1025 
1026 
1027 static const struct drm_encoder_funcs radeon_legacy_tmds_ext_enc_funcs = {
1028 	.destroy = radeon_ext_tmds_enc_destroy,
1029 };
1030 
1031 static void radeon_legacy_tv_dac_dpms(struct drm_encoder *encoder, int mode)
1032 {
1033 	struct drm_device *dev = encoder->dev;
1034 	struct radeon_device *rdev = dev->dev_private;
1035 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
1036 	uint32_t fp2_gen_cntl = 0, crtc2_gen_cntl = 0, tv_dac_cntl = 0;
1037 	uint32_t tv_master_cntl = 0;
1038 	bool is_tv;
1039 	DRM_DEBUG_KMS("\n");
1040 
1041 	is_tv = radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT ? true : false;
1042 
1043 	if (rdev->family == CHIP_R200)
1044 		fp2_gen_cntl = RREG32(RADEON_FP2_GEN_CNTL);
1045 	else {
1046 		if (is_tv)
1047 			tv_master_cntl = RREG32(RADEON_TV_MASTER_CNTL);
1048 		else
1049 			crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL);
1050 		tv_dac_cntl = RREG32(RADEON_TV_DAC_CNTL);
1051 	}
1052 
1053 	switch (mode) {
1054 	case DRM_MODE_DPMS_ON:
1055 		if (rdev->family == CHIP_R200) {
1056 			fp2_gen_cntl |= (RADEON_FP2_ON | RADEON_FP2_DVO_EN);
1057 		} else {
1058 			if (is_tv)
1059 				tv_master_cntl |= RADEON_TV_ON;
1060 			else
1061 				crtc2_gen_cntl |= RADEON_CRTC2_CRT2_ON;
1062 
1063 			if (rdev->family == CHIP_R420 ||
1064 			    rdev->family == CHIP_R423 ||
1065 			    rdev->family == CHIP_RV410)
1066 				tv_dac_cntl &= ~(R420_TV_DAC_RDACPD |
1067 						 R420_TV_DAC_GDACPD |
1068 						 R420_TV_DAC_BDACPD |
1069 						 RADEON_TV_DAC_BGSLEEP);
1070 			else
1071 				tv_dac_cntl &= ~(RADEON_TV_DAC_RDACPD |
1072 						 RADEON_TV_DAC_GDACPD |
1073 						 RADEON_TV_DAC_BDACPD |
1074 						 RADEON_TV_DAC_BGSLEEP);
1075 		}
1076 		break;
1077 	case DRM_MODE_DPMS_STANDBY:
1078 	case DRM_MODE_DPMS_SUSPEND:
1079 	case DRM_MODE_DPMS_OFF:
1080 		if (rdev->family == CHIP_R200)
1081 			fp2_gen_cntl &= ~(RADEON_FP2_ON | RADEON_FP2_DVO_EN);
1082 		else {
1083 			if (is_tv)
1084 				tv_master_cntl &= ~RADEON_TV_ON;
1085 			else
1086 				crtc2_gen_cntl &= ~RADEON_CRTC2_CRT2_ON;
1087 
1088 			if (rdev->family == CHIP_R420 ||
1089 			    rdev->family == CHIP_R423 ||
1090 			    rdev->family == CHIP_RV410)
1091 				tv_dac_cntl |= (R420_TV_DAC_RDACPD |
1092 						R420_TV_DAC_GDACPD |
1093 						R420_TV_DAC_BDACPD |
1094 						RADEON_TV_DAC_BGSLEEP);
1095 			else
1096 				tv_dac_cntl |= (RADEON_TV_DAC_RDACPD |
1097 						RADEON_TV_DAC_GDACPD |
1098 						RADEON_TV_DAC_BDACPD |
1099 						RADEON_TV_DAC_BGSLEEP);
1100 		}
1101 		break;
1102 	}
1103 
1104 	if (rdev->family == CHIP_R200) {
1105 		WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl);
1106 	} else {
1107 		if (is_tv)
1108 			WREG32(RADEON_TV_MASTER_CNTL, tv_master_cntl);
1109 		/* handled in radeon_crtc_dpms() */
1110 		else if (!(rdev->flags & RADEON_SINGLE_CRTC))
1111 			WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl);
1112 		WREG32(RADEON_TV_DAC_CNTL, tv_dac_cntl);
1113 	}
1114 
1115 	if (rdev->is_atom_bios)
1116 		radeon_atombios_encoder_dpms_scratch_regs(encoder, (mode == DRM_MODE_DPMS_ON) ? true : false);
1117 	else
1118 		radeon_combios_encoder_dpms_scratch_regs(encoder, (mode == DRM_MODE_DPMS_ON) ? true : false);
1119 
1120 }
1121 
1122 static void radeon_legacy_tv_dac_prepare(struct drm_encoder *encoder)
1123 {
1124 	struct radeon_device *rdev = encoder->dev->dev_private;
1125 
1126 	if (rdev->is_atom_bios)
1127 		radeon_atom_output_lock(encoder, true);
1128 	else
1129 		radeon_combios_output_lock(encoder, true);
1130 	radeon_legacy_tv_dac_dpms(encoder, DRM_MODE_DPMS_OFF);
1131 }
1132 
1133 static void radeon_legacy_tv_dac_commit(struct drm_encoder *encoder)
1134 {
1135 	struct radeon_device *rdev = encoder->dev->dev_private;
1136 
1137 	radeon_legacy_tv_dac_dpms(encoder, DRM_MODE_DPMS_ON);
1138 
1139 	if (rdev->is_atom_bios)
1140 		radeon_atom_output_lock(encoder, true);
1141 	else
1142 		radeon_combios_output_lock(encoder, true);
1143 }
1144 
1145 static void radeon_legacy_tv_dac_mode_set(struct drm_encoder *encoder,
1146 		struct drm_display_mode *mode,
1147 		struct drm_display_mode *adjusted_mode)
1148 {
1149 	struct drm_device *dev = encoder->dev;
1150 	struct radeon_device *rdev = dev->dev_private;
1151 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
1152 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
1153 	struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv;
1154 	uint32_t tv_dac_cntl, gpiopad_a = 0, dac2_cntl, disp_output_cntl = 0;
1155 	uint32_t disp_hw_debug = 0, fp2_gen_cntl = 0, disp_tv_out_cntl = 0;
1156 	bool is_tv = false;
1157 
1158 	DRM_DEBUG_KMS("\n");
1159 
1160 	is_tv = radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT ? true : false;
1161 
1162 	if (rdev->family != CHIP_R200) {
1163 		tv_dac_cntl = RREG32(RADEON_TV_DAC_CNTL);
1164 		if (rdev->family == CHIP_R420 ||
1165 		    rdev->family == CHIP_R423 ||
1166 		    rdev->family == CHIP_RV410) {
1167 			tv_dac_cntl &= ~(RADEON_TV_DAC_STD_MASK |
1168 					 RADEON_TV_DAC_BGADJ_MASK |
1169 					 R420_TV_DAC_DACADJ_MASK |
1170 					 R420_TV_DAC_RDACPD |
1171 					 R420_TV_DAC_GDACPD |
1172 					 R420_TV_DAC_BDACPD |
1173 					 R420_TV_DAC_TVENABLE);
1174 		} else {
1175 			tv_dac_cntl &= ~(RADEON_TV_DAC_STD_MASK |
1176 					 RADEON_TV_DAC_BGADJ_MASK |
1177 					 RADEON_TV_DAC_DACADJ_MASK |
1178 					 RADEON_TV_DAC_RDACPD |
1179 					 RADEON_TV_DAC_GDACPD |
1180 					 RADEON_TV_DAC_BDACPD);
1181 		}
1182 
1183 		tv_dac_cntl |= RADEON_TV_DAC_NBLANK | RADEON_TV_DAC_NHOLD;
1184 
1185 		if (is_tv) {
1186 			if (tv_dac->tv_std == TV_STD_NTSC ||
1187 			    tv_dac->tv_std == TV_STD_NTSC_J ||
1188 			    tv_dac->tv_std == TV_STD_PAL_M ||
1189 			    tv_dac->tv_std == TV_STD_PAL_60)
1190 				tv_dac_cntl |= tv_dac->ntsc_tvdac_adj;
1191 			else
1192 				tv_dac_cntl |= tv_dac->pal_tvdac_adj;
1193 
1194 			if (tv_dac->tv_std == TV_STD_NTSC ||
1195 			    tv_dac->tv_std == TV_STD_NTSC_J)
1196 				tv_dac_cntl |= RADEON_TV_DAC_STD_NTSC;
1197 			else
1198 				tv_dac_cntl |= RADEON_TV_DAC_STD_PAL;
1199 		} else
1200 			tv_dac_cntl |= (RADEON_TV_DAC_STD_PS2 |
1201 					tv_dac->ps2_tvdac_adj);
1202 
1203 		WREG32(RADEON_TV_DAC_CNTL, tv_dac_cntl);
1204 	}
1205 
1206 	if (ASIC_IS_R300(rdev)) {
1207 		gpiopad_a = RREG32(RADEON_GPIOPAD_A) | 1;
1208 		disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL);
1209 	} else if (rdev->family != CHIP_R200)
1210 		disp_hw_debug = RREG32(RADEON_DISP_HW_DEBUG);
1211 	else if (rdev->family == CHIP_R200)
1212 		fp2_gen_cntl = RREG32(RADEON_FP2_GEN_CNTL);
1213 
1214 	if (rdev->family >= CHIP_R200)
1215 		disp_tv_out_cntl = RREG32(RADEON_DISP_TV_OUT_CNTL);
1216 
1217 	if (is_tv) {
1218 		uint32_t dac_cntl;
1219 
1220 		dac_cntl = RREG32(RADEON_DAC_CNTL);
1221 		dac_cntl &= ~RADEON_DAC_TVO_EN;
1222 		WREG32(RADEON_DAC_CNTL, dac_cntl);
1223 
1224 		if (ASIC_IS_R300(rdev))
1225 			gpiopad_a = RREG32(RADEON_GPIOPAD_A) & ~1;
1226 
1227 		dac2_cntl = RREG32(RADEON_DAC_CNTL2) & ~RADEON_DAC2_DAC2_CLK_SEL;
1228 		if (radeon_crtc->crtc_id == 0) {
1229 			if (ASIC_IS_R300(rdev)) {
1230 				disp_output_cntl &= ~RADEON_DISP_TVDAC_SOURCE_MASK;
1231 				disp_output_cntl |= (RADEON_DISP_TVDAC_SOURCE_CRTC |
1232 						     RADEON_DISP_TV_SOURCE_CRTC);
1233 			}
1234 			if (rdev->family >= CHIP_R200) {
1235 				disp_tv_out_cntl &= ~RADEON_DISP_TV_PATH_SRC_CRTC2;
1236 			} else {
1237 				disp_hw_debug |= RADEON_CRT2_DISP1_SEL;
1238 			}
1239 		} else {
1240 			if (ASIC_IS_R300(rdev)) {
1241 				disp_output_cntl &= ~RADEON_DISP_TVDAC_SOURCE_MASK;
1242 				disp_output_cntl |= RADEON_DISP_TV_SOURCE_CRTC;
1243 			}
1244 			if (rdev->family >= CHIP_R200) {
1245 				disp_tv_out_cntl |= RADEON_DISP_TV_PATH_SRC_CRTC2;
1246 			} else {
1247 				disp_hw_debug &= ~RADEON_CRT2_DISP1_SEL;
1248 			}
1249 		}
1250 		WREG32(RADEON_DAC_CNTL2, dac2_cntl);
1251 	} else {
1252 
1253 		dac2_cntl = RREG32(RADEON_DAC_CNTL2) | RADEON_DAC2_DAC2_CLK_SEL;
1254 
1255 		if (radeon_crtc->crtc_id == 0) {
1256 			if (ASIC_IS_R300(rdev)) {
1257 				disp_output_cntl &= ~RADEON_DISP_TVDAC_SOURCE_MASK;
1258 				disp_output_cntl |= RADEON_DISP_TVDAC_SOURCE_CRTC;
1259 			} else if (rdev->family == CHIP_R200) {
1260 				fp2_gen_cntl &= ~(R200_FP2_SOURCE_SEL_MASK |
1261 						  RADEON_FP2_DVO_RATE_SEL_SDR);
1262 			} else
1263 				disp_hw_debug |= RADEON_CRT2_DISP1_SEL;
1264 		} else {
1265 			if (ASIC_IS_R300(rdev)) {
1266 				disp_output_cntl &= ~RADEON_DISP_TVDAC_SOURCE_MASK;
1267 				disp_output_cntl |= RADEON_DISP_TVDAC_SOURCE_CRTC2;
1268 			} else if (rdev->family == CHIP_R200) {
1269 				fp2_gen_cntl &= ~(R200_FP2_SOURCE_SEL_MASK |
1270 						  RADEON_FP2_DVO_RATE_SEL_SDR);
1271 				fp2_gen_cntl |= R200_FP2_SOURCE_SEL_CRTC2;
1272 			} else
1273 				disp_hw_debug &= ~RADEON_CRT2_DISP1_SEL;
1274 		}
1275 		WREG32(RADEON_DAC_CNTL2, dac2_cntl);
1276 	}
1277 
1278 	if (ASIC_IS_R300(rdev)) {
1279 		WREG32_P(RADEON_GPIOPAD_A, gpiopad_a, ~1);
1280 		WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl);
1281 	} else if (rdev->family != CHIP_R200)
1282 		WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug);
1283 	else if (rdev->family == CHIP_R200)
1284 		WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl);
1285 
1286 	if (rdev->family >= CHIP_R200)
1287 		WREG32(RADEON_DISP_TV_OUT_CNTL, disp_tv_out_cntl);
1288 
1289 	if (is_tv)
1290 		radeon_legacy_tv_mode_set(encoder, mode, adjusted_mode);
1291 
1292 	if (rdev->is_atom_bios)
1293 		radeon_atombios_encoder_crtc_scratch_regs(encoder, radeon_crtc->crtc_id);
1294 	else
1295 		radeon_combios_encoder_crtc_scratch_regs(encoder, radeon_crtc->crtc_id);
1296 
1297 }
1298 
1299 static bool r300_legacy_tv_detect(struct drm_encoder *encoder,
1300 				  struct drm_connector *connector)
1301 {
1302 	struct drm_device *dev = encoder->dev;
1303 	struct radeon_device *rdev = dev->dev_private;
1304 	uint32_t crtc2_gen_cntl, tv_dac_cntl, dac_cntl2, dac_ext_cntl;
1305 	uint32_t disp_output_cntl, gpiopad_a, tmp;
1306 	bool found = false;
1307 
1308 	/* save regs needed */
1309 	gpiopad_a = RREG32(RADEON_GPIOPAD_A);
1310 	dac_cntl2 = RREG32(RADEON_DAC_CNTL2);
1311 	crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL);
1312 	dac_ext_cntl = RREG32(RADEON_DAC_EXT_CNTL);
1313 	tv_dac_cntl = RREG32(RADEON_TV_DAC_CNTL);
1314 	disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL);
1315 
1316 	WREG32_P(RADEON_GPIOPAD_A, 0, ~1);
1317 
1318 	WREG32(RADEON_DAC_CNTL2, RADEON_DAC2_DAC2_CLK_SEL);
1319 
1320 	WREG32(RADEON_CRTC2_GEN_CNTL,
1321 	       RADEON_CRTC2_CRT2_ON | RADEON_CRTC2_VSYNC_TRISTAT);
1322 
1323 	tmp = disp_output_cntl & ~RADEON_DISP_TVDAC_SOURCE_MASK;
1324 	tmp |= RADEON_DISP_TVDAC_SOURCE_CRTC2;
1325 	WREG32(RADEON_DISP_OUTPUT_CNTL, tmp);
1326 
1327 	WREG32(RADEON_DAC_EXT_CNTL,
1328 	       RADEON_DAC2_FORCE_BLANK_OFF_EN |
1329 	       RADEON_DAC2_FORCE_DATA_EN |
1330 	       RADEON_DAC_FORCE_DATA_SEL_RGB |
1331 	       (0xec << RADEON_DAC_FORCE_DATA_SHIFT));
1332 
1333 	WREG32(RADEON_TV_DAC_CNTL,
1334 	       RADEON_TV_DAC_STD_NTSC |
1335 	       (8 << RADEON_TV_DAC_BGADJ_SHIFT) |
1336 	       (6 << RADEON_TV_DAC_DACADJ_SHIFT));
1337 
1338 	RREG32(RADEON_TV_DAC_CNTL);
1339 	mdelay(4);
1340 
1341 	WREG32(RADEON_TV_DAC_CNTL,
1342 	       RADEON_TV_DAC_NBLANK |
1343 	       RADEON_TV_DAC_NHOLD |
1344 	       RADEON_TV_MONITOR_DETECT_EN |
1345 	       RADEON_TV_DAC_STD_NTSC |
1346 	       (8 << RADEON_TV_DAC_BGADJ_SHIFT) |
1347 	       (6 << RADEON_TV_DAC_DACADJ_SHIFT));
1348 
1349 	RREG32(RADEON_TV_DAC_CNTL);
1350 	mdelay(6);
1351 
1352 	tmp = RREG32(RADEON_TV_DAC_CNTL);
1353 	if ((tmp & RADEON_TV_DAC_GDACDET) != 0) {
1354 		found = true;
1355 		DRM_DEBUG_KMS("S-video TV connection detected\n");
1356 	} else if ((tmp & RADEON_TV_DAC_BDACDET) != 0) {
1357 		found = true;
1358 		DRM_DEBUG_KMS("Composite TV connection detected\n");
1359 	}
1360 
1361 	WREG32(RADEON_TV_DAC_CNTL, tv_dac_cntl);
1362 	WREG32(RADEON_DAC_EXT_CNTL, dac_ext_cntl);
1363 	WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl);
1364 	WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl);
1365 	WREG32(RADEON_DAC_CNTL2, dac_cntl2);
1366 	WREG32_P(RADEON_GPIOPAD_A, gpiopad_a, ~1);
1367 	return found;
1368 }
1369 
1370 static bool radeon_legacy_tv_detect(struct drm_encoder *encoder,
1371 				    struct drm_connector *connector)
1372 {
1373 	struct drm_device *dev = encoder->dev;
1374 	struct radeon_device *rdev = dev->dev_private;
1375 	uint32_t tv_dac_cntl, dac_cntl2;
1376 	uint32_t config_cntl, tv_pre_dac_mux_cntl, tv_master_cntl, tmp;
1377 	bool found = false;
1378 
1379 	if (ASIC_IS_R300(rdev))
1380 		return r300_legacy_tv_detect(encoder, connector);
1381 
1382 	dac_cntl2 = RREG32(RADEON_DAC_CNTL2);
1383 	tv_master_cntl = RREG32(RADEON_TV_MASTER_CNTL);
1384 	tv_dac_cntl = RREG32(RADEON_TV_DAC_CNTL);
1385 	config_cntl = RREG32(RADEON_CONFIG_CNTL);
1386 	tv_pre_dac_mux_cntl = RREG32(RADEON_TV_PRE_DAC_MUX_CNTL);
1387 
1388 	tmp = dac_cntl2 & ~RADEON_DAC2_DAC2_CLK_SEL;
1389 	WREG32(RADEON_DAC_CNTL2, tmp);
1390 
1391 	tmp = tv_master_cntl | RADEON_TV_ON;
1392 	tmp &= ~(RADEON_TV_ASYNC_RST |
1393 		 RADEON_RESTART_PHASE_FIX |
1394 		 RADEON_CRT_FIFO_CE_EN |
1395 		 RADEON_TV_FIFO_CE_EN |
1396 		 RADEON_RE_SYNC_NOW_SEL_MASK);
1397 	tmp |= RADEON_TV_FIFO_ASYNC_RST | RADEON_CRT_ASYNC_RST;
1398 	WREG32(RADEON_TV_MASTER_CNTL, tmp);
1399 
1400 	tmp = RADEON_TV_DAC_NBLANK | RADEON_TV_DAC_NHOLD |
1401 		RADEON_TV_MONITOR_DETECT_EN | RADEON_TV_DAC_STD_NTSC |
1402 		(8 << RADEON_TV_DAC_BGADJ_SHIFT);
1403 
1404 	if (config_cntl & RADEON_CFG_ATI_REV_ID_MASK)
1405 		tmp |= (4 << RADEON_TV_DAC_DACADJ_SHIFT);
1406 	else
1407 		tmp |= (8 << RADEON_TV_DAC_DACADJ_SHIFT);
1408 	WREG32(RADEON_TV_DAC_CNTL, tmp);
1409 
1410 	tmp = RADEON_C_GRN_EN | RADEON_CMP_BLU_EN |
1411 		RADEON_RED_MX_FORCE_DAC_DATA |
1412 		RADEON_GRN_MX_FORCE_DAC_DATA |
1413 		RADEON_BLU_MX_FORCE_DAC_DATA |
1414 		(0x109 << RADEON_TV_FORCE_DAC_DATA_SHIFT);
1415 	WREG32(RADEON_TV_PRE_DAC_MUX_CNTL, tmp);
1416 
1417 	mdelay(3);
1418 	tmp = RREG32(RADEON_TV_DAC_CNTL);
1419 	if (tmp & RADEON_TV_DAC_GDACDET) {
1420 		found = true;
1421 		DRM_DEBUG_KMS("S-video TV connection detected\n");
1422 	} else if ((tmp & RADEON_TV_DAC_BDACDET) != 0) {
1423 		found = true;
1424 		DRM_DEBUG_KMS("Composite TV connection detected\n");
1425 	}
1426 
1427 	WREG32(RADEON_TV_PRE_DAC_MUX_CNTL, tv_pre_dac_mux_cntl);
1428 	WREG32(RADEON_TV_DAC_CNTL, tv_dac_cntl);
1429 	WREG32(RADEON_TV_MASTER_CNTL, tv_master_cntl);
1430 	WREG32(RADEON_DAC_CNTL2, dac_cntl2);
1431 	return found;
1432 }
1433 
1434 static bool radeon_legacy_ext_dac_detect(struct drm_encoder *encoder,
1435 					 struct drm_connector *connector)
1436 {
1437 	struct drm_device *dev = encoder->dev;
1438 	struct radeon_device *rdev = dev->dev_private;
1439 	uint32_t gpio_monid, fp2_gen_cntl, disp_output_cntl, crtc2_gen_cntl;
1440 	uint32_t disp_lin_trans_grph_a, disp_lin_trans_grph_b, disp_lin_trans_grph_c;
1441 	uint32_t disp_lin_trans_grph_d, disp_lin_trans_grph_e, disp_lin_trans_grph_f;
1442 	uint32_t tmp, crtc2_h_total_disp, crtc2_v_total_disp;
1443 	uint32_t crtc2_h_sync_strt_wid, crtc2_v_sync_strt_wid;
1444 	bool found = false;
1445 	int i;
1446 
1447 	/* save the regs we need */
1448 	gpio_monid = RREG32(RADEON_GPIO_MONID);
1449 	fp2_gen_cntl = RREG32(RADEON_FP2_GEN_CNTL);
1450 	disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL);
1451 	crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL);
1452 	disp_lin_trans_grph_a = RREG32(RADEON_DISP_LIN_TRANS_GRPH_A);
1453 	disp_lin_trans_grph_b = RREG32(RADEON_DISP_LIN_TRANS_GRPH_B);
1454 	disp_lin_trans_grph_c = RREG32(RADEON_DISP_LIN_TRANS_GRPH_C);
1455 	disp_lin_trans_grph_d = RREG32(RADEON_DISP_LIN_TRANS_GRPH_D);
1456 	disp_lin_trans_grph_e = RREG32(RADEON_DISP_LIN_TRANS_GRPH_E);
1457 	disp_lin_trans_grph_f = RREG32(RADEON_DISP_LIN_TRANS_GRPH_F);
1458 	crtc2_h_total_disp = RREG32(RADEON_CRTC2_H_TOTAL_DISP);
1459 	crtc2_v_total_disp = RREG32(RADEON_CRTC2_V_TOTAL_DISP);
1460 	crtc2_h_sync_strt_wid = RREG32(RADEON_CRTC2_H_SYNC_STRT_WID);
1461 	crtc2_v_sync_strt_wid = RREG32(RADEON_CRTC2_V_SYNC_STRT_WID);
1462 
1463 	tmp = RREG32(RADEON_GPIO_MONID);
1464 	tmp &= ~RADEON_GPIO_A_0;
1465 	WREG32(RADEON_GPIO_MONID, tmp);
1466 
1467 	WREG32(RADEON_FP2_GEN_CNTL, (RADEON_FP2_ON |
1468 				     RADEON_FP2_PANEL_FORMAT |
1469 				     R200_FP2_SOURCE_SEL_TRANS_UNIT |
1470 				     RADEON_FP2_DVO_EN |
1471 				     R200_FP2_DVO_RATE_SEL_SDR));
1472 
1473 	WREG32(RADEON_DISP_OUTPUT_CNTL, (RADEON_DISP_DAC_SOURCE_RMX |
1474 					 RADEON_DISP_TRANS_MATRIX_GRAPHICS));
1475 
1476 	WREG32(RADEON_CRTC2_GEN_CNTL, (RADEON_CRTC2_EN |
1477 				       RADEON_CRTC2_DISP_REQ_EN_B));
1478 
1479 	WREG32(RADEON_DISP_LIN_TRANS_GRPH_A, 0x00000000);
1480 	WREG32(RADEON_DISP_LIN_TRANS_GRPH_B, 0x000003f0);
1481 	WREG32(RADEON_DISP_LIN_TRANS_GRPH_C, 0x00000000);
1482 	WREG32(RADEON_DISP_LIN_TRANS_GRPH_D, 0x000003f0);
1483 	WREG32(RADEON_DISP_LIN_TRANS_GRPH_E, 0x00000000);
1484 	WREG32(RADEON_DISP_LIN_TRANS_GRPH_F, 0x000003f0);
1485 
1486 	WREG32(RADEON_CRTC2_H_TOTAL_DISP, 0x01000008);
1487 	WREG32(RADEON_CRTC2_H_SYNC_STRT_WID, 0x00000800);
1488 	WREG32(RADEON_CRTC2_V_TOTAL_DISP, 0x00080001);
1489 	WREG32(RADEON_CRTC2_V_SYNC_STRT_WID, 0x00000080);
1490 
1491 	for (i = 0; i < 200; i++) {
1492 		tmp = RREG32(RADEON_GPIO_MONID);
1493 		if (tmp & RADEON_GPIO_Y_0)
1494 			found = true;
1495 
1496 		if (found)
1497 			break;
1498 
1499 		if (!drm_can_sleep())
1500 			mdelay(1);
1501 		else
1502 			msleep(1);
1503 	}
1504 
1505 	/* restore the regs we used */
1506 	WREG32(RADEON_DISP_LIN_TRANS_GRPH_A, disp_lin_trans_grph_a);
1507 	WREG32(RADEON_DISP_LIN_TRANS_GRPH_B, disp_lin_trans_grph_b);
1508 	WREG32(RADEON_DISP_LIN_TRANS_GRPH_C, disp_lin_trans_grph_c);
1509 	WREG32(RADEON_DISP_LIN_TRANS_GRPH_D, disp_lin_trans_grph_d);
1510 	WREG32(RADEON_DISP_LIN_TRANS_GRPH_E, disp_lin_trans_grph_e);
1511 	WREG32(RADEON_DISP_LIN_TRANS_GRPH_F, disp_lin_trans_grph_f);
1512 	WREG32(RADEON_CRTC2_H_TOTAL_DISP, crtc2_h_total_disp);
1513 	WREG32(RADEON_CRTC2_V_TOTAL_DISP, crtc2_v_total_disp);
1514 	WREG32(RADEON_CRTC2_H_SYNC_STRT_WID, crtc2_h_sync_strt_wid);
1515 	WREG32(RADEON_CRTC2_V_SYNC_STRT_WID, crtc2_v_sync_strt_wid);
1516 	WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl);
1517 	WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl);
1518 	WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl);
1519 	WREG32(RADEON_GPIO_MONID, gpio_monid);
1520 
1521 	return found;
1522 }
1523 
1524 static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder *encoder,
1525 							     struct drm_connector *connector)
1526 {
1527 	struct drm_device *dev = encoder->dev;
1528 	struct radeon_device *rdev = dev->dev_private;
1529 	uint32_t crtc2_gen_cntl = 0, tv_dac_cntl, dac_cntl2, dac_ext_cntl;
1530 	uint32_t gpiopad_a = 0, pixclks_cntl, tmp;
1531 	uint32_t disp_output_cntl = 0, disp_hw_debug = 0, crtc_ext_cntl = 0;
1532 	enum drm_connector_status found = connector_status_disconnected;
1533 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
1534 	struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv;
1535 	bool color = true;
1536 	struct drm_crtc *crtc;
1537 
1538 	/* find out if crtc2 is in use or if this encoder is using it */
1539 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1540 		struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1541 		if ((radeon_crtc->crtc_id == 1) && crtc->enabled) {
1542 			if (encoder->crtc != crtc) {
1543 				return connector_status_disconnected;
1544 			}
1545 		}
1546 	}
1547 
1548 	if (connector->connector_type == DRM_MODE_CONNECTOR_SVIDEO ||
1549 	    connector->connector_type == DRM_MODE_CONNECTOR_Composite ||
1550 	    connector->connector_type == DRM_MODE_CONNECTOR_9PinDIN) {
1551 		bool tv_detect;
1552 
1553 		if (radeon_encoder->active_device && !(radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT))
1554 			return connector_status_disconnected;
1555 
1556 		tv_detect = radeon_legacy_tv_detect(encoder, connector);
1557 		if (tv_detect && tv_dac)
1558 			found = connector_status_connected;
1559 		return found;
1560 	}
1561 
1562 	/* don't probe if the encoder is being used for something else not CRT related */
1563 	if (radeon_encoder->active_device && !(radeon_encoder->active_device & ATOM_DEVICE_CRT_SUPPORT)) {
1564 		DRM_INFO("not detecting due to %08x\n", radeon_encoder->active_device);
1565 		return connector_status_disconnected;
1566 	}
1567 
1568 	/* R200 uses an external DAC for secondary DAC */
1569 	if (rdev->family == CHIP_R200) {
1570 		if (radeon_legacy_ext_dac_detect(encoder, connector))
1571 			found = connector_status_connected;
1572 		return found;
1573 	}
1574 
1575 	/* save the regs we need */
1576 	pixclks_cntl = RREG32_PLL(RADEON_PIXCLKS_CNTL);
1577 
1578 	if (rdev->flags & RADEON_SINGLE_CRTC) {
1579 		crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL);
1580 	} else {
1581 		if (ASIC_IS_R300(rdev)) {
1582 			gpiopad_a = RREG32(RADEON_GPIOPAD_A);
1583 			disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL);
1584 		} else {
1585 			disp_hw_debug = RREG32(RADEON_DISP_HW_DEBUG);
1586 		}
1587 		crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL);
1588 	}
1589 	tv_dac_cntl = RREG32(RADEON_TV_DAC_CNTL);
1590 	dac_ext_cntl = RREG32(RADEON_DAC_EXT_CNTL);
1591 	dac_cntl2 = RREG32(RADEON_DAC_CNTL2);
1592 
1593 	tmp = pixclks_cntl & ~(RADEON_PIX2CLK_ALWAYS_ONb
1594 			       | RADEON_PIX2CLK_DAC_ALWAYS_ONb);
1595 	WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
1596 
1597 	if (rdev->flags & RADEON_SINGLE_CRTC) {
1598 		tmp = crtc_ext_cntl | RADEON_CRTC_CRT_ON;
1599 		WREG32(RADEON_CRTC_EXT_CNTL, tmp);
1600 	} else {
1601 		tmp = crtc2_gen_cntl & ~RADEON_CRTC2_PIX_WIDTH_MASK;
1602 		tmp |= RADEON_CRTC2_CRT2_ON |
1603 			(2 << RADEON_CRTC2_PIX_WIDTH_SHIFT);
1604 		WREG32(RADEON_CRTC2_GEN_CNTL, tmp);
1605 
1606 		if (ASIC_IS_R300(rdev)) {
1607 			WREG32_P(RADEON_GPIOPAD_A, 1, ~1);
1608 			tmp = disp_output_cntl & ~RADEON_DISP_TVDAC_SOURCE_MASK;
1609 			tmp |= RADEON_DISP_TVDAC_SOURCE_CRTC2;
1610 			WREG32(RADEON_DISP_OUTPUT_CNTL, tmp);
1611 		} else {
1612 			tmp = disp_hw_debug & ~RADEON_CRT2_DISP1_SEL;
1613 			WREG32(RADEON_DISP_HW_DEBUG, tmp);
1614 		}
1615 	}
1616 
1617 	tmp = RADEON_TV_DAC_NBLANK |
1618 		RADEON_TV_DAC_NHOLD |
1619 		RADEON_TV_MONITOR_DETECT_EN |
1620 		RADEON_TV_DAC_STD_PS2;
1621 
1622 	WREG32(RADEON_TV_DAC_CNTL, tmp);
1623 
1624 	tmp = RADEON_DAC2_FORCE_BLANK_OFF_EN |
1625 		RADEON_DAC2_FORCE_DATA_EN;
1626 
1627 	if (color)
1628 		tmp |= RADEON_DAC_FORCE_DATA_SEL_RGB;
1629 	else
1630 		tmp |= RADEON_DAC_FORCE_DATA_SEL_G;
1631 
1632 	if (ASIC_IS_R300(rdev))
1633 		tmp |= (0x1b6 << RADEON_DAC_FORCE_DATA_SHIFT);
1634 	else
1635 		tmp |= (0x180 << RADEON_DAC_FORCE_DATA_SHIFT);
1636 
1637 	WREG32(RADEON_DAC_EXT_CNTL, tmp);
1638 
1639 	tmp = dac_cntl2 | RADEON_DAC2_DAC2_CLK_SEL | RADEON_DAC2_CMP_EN;
1640 	WREG32(RADEON_DAC_CNTL2, tmp);
1641 
1642 	mdelay(10);
1643 
1644 	if (ASIC_IS_R300(rdev)) {
1645 		if (RREG32(RADEON_DAC_CNTL2) & RADEON_DAC2_CMP_OUT_B)
1646 			found = connector_status_connected;
1647 	} else {
1648 		if (RREG32(RADEON_DAC_CNTL2) & RADEON_DAC2_CMP_OUTPUT)
1649 			found = connector_status_connected;
1650 	}
1651 
1652 	/* restore regs we used */
1653 	WREG32(RADEON_DAC_CNTL2, dac_cntl2);
1654 	WREG32(RADEON_DAC_EXT_CNTL, dac_ext_cntl);
1655 	WREG32(RADEON_TV_DAC_CNTL, tv_dac_cntl);
1656 
1657 	if (rdev->flags & RADEON_SINGLE_CRTC) {
1658 		WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl);
1659 	} else {
1660 		WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl);
1661 		if (ASIC_IS_R300(rdev)) {
1662 			WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl);
1663 			WREG32_P(RADEON_GPIOPAD_A, gpiopad_a, ~1);
1664 		} else {
1665 			WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug);
1666 		}
1667 	}
1668 
1669 	WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl);
1670 
1671 	return found;
1672 
1673 }
1674 
1675 static const struct drm_encoder_helper_funcs radeon_legacy_tv_dac_helper_funcs = {
1676 	.dpms = radeon_legacy_tv_dac_dpms,
1677 	.mode_fixup = radeon_legacy_mode_fixup,
1678 	.prepare = radeon_legacy_tv_dac_prepare,
1679 	.mode_set = radeon_legacy_tv_dac_mode_set,
1680 	.commit = radeon_legacy_tv_dac_commit,
1681 	.detect = radeon_legacy_tv_dac_detect,
1682 	.disable = radeon_legacy_encoder_disable,
1683 };
1684 
1685 
1686 static const struct drm_encoder_funcs radeon_legacy_tv_dac_enc_funcs = {
1687 	.destroy = radeon_enc_destroy,
1688 };
1689 
1690 
1691 static struct radeon_encoder_int_tmds *radeon_legacy_get_tmds_info(struct radeon_encoder *encoder)
1692 {
1693 	struct drm_device *dev = encoder->base.dev;
1694 	struct radeon_device *rdev = dev->dev_private;
1695 	struct radeon_encoder_int_tmds *tmds;
1696 	bool ret;
1697 
1698 	tmds = kzalloc(sizeof(struct radeon_encoder_int_tmds), GFP_KERNEL);
1699 
1700 	if (!tmds)
1701 		return NULL;
1702 
1703 	if (rdev->is_atom_bios)
1704 		ret = radeon_atombios_get_tmds_info(encoder, tmds);
1705 	else
1706 		ret = radeon_legacy_get_tmds_info_from_combios(encoder, tmds);
1707 
1708 	if (!ret)
1709 		radeon_legacy_get_tmds_info_from_table(encoder, tmds);
1710 
1711 	return tmds;
1712 }
1713 
1714 static struct radeon_encoder_ext_tmds *radeon_legacy_get_ext_tmds_info(struct radeon_encoder *encoder)
1715 {
1716 	struct drm_device *dev = encoder->base.dev;
1717 	struct radeon_device *rdev = dev->dev_private;
1718 	struct radeon_encoder_ext_tmds *tmds;
1719 	bool ret;
1720 
1721 	if (rdev->is_atom_bios)
1722 		return NULL;
1723 
1724 	tmds = kzalloc(sizeof(struct radeon_encoder_ext_tmds), GFP_KERNEL);
1725 
1726 	if (!tmds)
1727 		return NULL;
1728 
1729 	ret = radeon_legacy_get_ext_tmds_info_from_combios(encoder, tmds);
1730 
1731 	if (!ret)
1732 		radeon_legacy_get_ext_tmds_info_from_table(encoder, tmds);
1733 
1734 	return tmds;
1735 }
1736 
1737 void
1738 radeon_add_legacy_encoder(struct drm_device *dev, uint32_t encoder_enum, uint32_t supported_device)
1739 {
1740 	struct radeon_device *rdev = dev->dev_private;
1741 	struct drm_encoder *encoder;
1742 	struct radeon_encoder *radeon_encoder;
1743 
1744 	/* see if we already added it */
1745 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1746 		radeon_encoder = to_radeon_encoder(encoder);
1747 		if (radeon_encoder->encoder_enum == encoder_enum) {
1748 			radeon_encoder->devices |= supported_device;
1749 			return;
1750 		}
1751 
1752 	}
1753 
1754 	/* add a new one */
1755 	radeon_encoder = kzalloc(sizeof(struct radeon_encoder), GFP_KERNEL);
1756 	if (!radeon_encoder)
1757 		return;
1758 
1759 	encoder = &radeon_encoder->base;
1760 	if (rdev->flags & RADEON_SINGLE_CRTC)
1761 		encoder->possible_crtcs = 0x1;
1762 	else
1763 		encoder->possible_crtcs = 0x3;
1764 
1765 	radeon_encoder->enc_priv = NULL;
1766 
1767 	radeon_encoder->encoder_enum = encoder_enum;
1768 	radeon_encoder->encoder_id = (encoder_enum & OBJECT_ID_MASK) >> OBJECT_ID_SHIFT;
1769 	radeon_encoder->devices = supported_device;
1770 	radeon_encoder->rmx_type = RMX_OFF;
1771 
1772 	switch (radeon_encoder->encoder_id) {
1773 	case ENCODER_OBJECT_ID_INTERNAL_LVDS:
1774 		encoder->possible_crtcs = 0x1;
1775 		drm_encoder_init(dev, encoder, &radeon_legacy_lvds_enc_funcs,
1776 				 DRM_MODE_ENCODER_LVDS, NULL);
1777 		drm_encoder_helper_add(encoder, &radeon_legacy_lvds_helper_funcs);
1778 		if (rdev->is_atom_bios)
1779 			radeon_encoder->enc_priv = radeon_atombios_get_lvds_info(radeon_encoder);
1780 		else
1781 			radeon_encoder->enc_priv = radeon_combios_get_lvds_info(radeon_encoder);
1782 		radeon_encoder->rmx_type = RMX_FULL;
1783 		break;
1784 	case ENCODER_OBJECT_ID_INTERNAL_TMDS1:
1785 		drm_encoder_init(dev, encoder, &radeon_legacy_tmds_int_enc_funcs,
1786 				 DRM_MODE_ENCODER_TMDS, NULL);
1787 		drm_encoder_helper_add(encoder, &radeon_legacy_tmds_int_helper_funcs);
1788 		radeon_encoder->enc_priv = radeon_legacy_get_tmds_info(radeon_encoder);
1789 		break;
1790 	case ENCODER_OBJECT_ID_INTERNAL_DAC1:
1791 		drm_encoder_init(dev, encoder, &radeon_legacy_primary_dac_enc_funcs,
1792 				 DRM_MODE_ENCODER_DAC, NULL);
1793 		drm_encoder_helper_add(encoder, &radeon_legacy_primary_dac_helper_funcs);
1794 		if (rdev->is_atom_bios)
1795 			radeon_encoder->enc_priv = radeon_atombios_get_primary_dac_info(radeon_encoder);
1796 		else
1797 			radeon_encoder->enc_priv = radeon_combios_get_primary_dac_info(radeon_encoder);
1798 		break;
1799 	case ENCODER_OBJECT_ID_INTERNAL_DAC2:
1800 		drm_encoder_init(dev, encoder, &radeon_legacy_tv_dac_enc_funcs,
1801 				 DRM_MODE_ENCODER_TVDAC, NULL);
1802 		drm_encoder_helper_add(encoder, &radeon_legacy_tv_dac_helper_funcs);
1803 		if (rdev->is_atom_bios)
1804 			radeon_encoder->enc_priv = radeon_atombios_get_tv_dac_info(radeon_encoder);
1805 		else
1806 			radeon_encoder->enc_priv = radeon_combios_get_tv_dac_info(radeon_encoder);
1807 		break;
1808 	case ENCODER_OBJECT_ID_INTERNAL_DVO1:
1809 		drm_encoder_init(dev, encoder, &radeon_legacy_tmds_ext_enc_funcs,
1810 				 DRM_MODE_ENCODER_TMDS, NULL);
1811 		drm_encoder_helper_add(encoder, &radeon_legacy_tmds_ext_helper_funcs);
1812 		if (!rdev->is_atom_bios)
1813 			radeon_encoder->enc_priv = radeon_legacy_get_ext_tmds_info(radeon_encoder);
1814 		break;
1815 	}
1816 }
1817